WO2023054712A1 - ペプチド - Google Patents
ペプチド Download PDFInfo
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- WO2023054712A1 WO2023054712A1 PCT/JP2022/036850 JP2022036850W WO2023054712A1 WO 2023054712 A1 WO2023054712 A1 WO 2023054712A1 JP 2022036850 W JP2022036850 W JP 2022036850W WO 2023054712 A1 WO2023054712 A1 WO 2023054712A1
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- amino acid
- peptide
- tgf
- peptide according
- amino acids
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Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K7/00—Peptides having 5 to 20 amino acids in a fully defined sequence; Derivatives thereof
- C07K7/04—Linear peptides containing only normal peptide links
- C07K7/08—Linear peptides containing only normal peptide links having 12 to 20 amino acids
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
- A61K38/04—Peptides having up to 20 amino acids in a fully defined sequence; Derivatives thereof
- A61K38/10—Peptides having 12 to 20 amino acids
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
- A61K38/04—Peptides having up to 20 amino acids in a fully defined sequence; Derivatives thereof
- A61K38/12—Cyclic peptides, e.g. bacitracins; Polymyxins; Gramicidins S, C; Tyrocidins A, B or C
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P13/00—Drugs for disorders of the urinary system
- A61P13/12—Drugs for disorders of the urinary system of the kidneys
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P9/00—Drugs for disorders of the cardiovascular system
- A61P9/10—Drugs for disorders of the cardiovascular system for treating ischaemic or atherosclerotic diseases, e.g. antianginal drugs, coronary vasodilators, drugs for myocardial infarction, retinopathy, cerebrovascula insufficiency, renal arteriosclerosis
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K7/00—Peptides having 5 to 20 amino acids in a fully defined sequence; Derivatives thereof
- C07K7/50—Cyclic peptides containing at least one abnormal peptide link
- C07K7/54—Cyclic peptides containing at least one abnormal peptide link with at least one abnormal peptide link in the ring
Definitions
- the present invention relates to peptides, compositions containing the peptides, and uses of the peptides.
- TGF- ⁇ (transforming growth factor ⁇ ) is a cytokine belonging to the TGF- ⁇ family and has many functions.
- the TGF- ⁇ family includes three isoforms of TGF- ⁇ (TGF- ⁇ 1, ⁇ 2 and ⁇ 3) and many other signaling proteins.
- TGF- ⁇ is known to have many functions, such as controlling cell proliferation and differentiation, and affecting the production and deposition promotion of extracellular matrix proteins such as collagen and fibronectin.
- Signal transduction pathways mediated by TGF- ⁇ are known to be involved in, for example, proliferation, metastasis and angiogenesis of cancer cells, control of immune response, etc. (Japanese PCT National Publication No. 2021-100972).
- TGF- ⁇ signaling pathway has a great effect on cell growth, survival and differentiation, it is also being studied as an additive to culture media.
- Antibodies (WO01/066140, WO2012/030394), small molecules (WO2015/103355), etc. are known as substances having TGF- ⁇ antagonistic activity, and therapeutic agents for renal dysfunction and myocardial infarction using them. etc., are being studied. In recent years, focusing on the tumor immunosuppressive action of TGF- ⁇ , the combined use of an immune checkpoint inhibitor and a TGF- ⁇ neutralizing antibody has also been studied.
- the present inventors have conceived of the present invention as a result of intensive research aimed at creating peptides having TGF- ⁇ binding activity, preferably TGF- ⁇ antagonist activity.
- the present invention provides peptides, compositions containing such peptides, and uses of such peptides.
- the present application includes the following inventions.
- the following amino acid sequences F-Nal1-VVNVYDD-PeG-V-Nal1-YHVCG (SEQ ID NO: 2); or, 1 selected from the group consisting of the 2nd, 4th, 7th, 8th, 9th, 10th, 12th, 13th, 14th, 15th and 17th amino acid residues of the above amino acid sequences; - A peptide comprising an amino acid sequence having a substitution, addition, deletion or insertion at 11 amino acid residues.
- X1 is an amino acid having an aromatic ring optionally substituted on the side chain
- X2 is any amino acid
- X3 is any amino acid
- X4 is any amino acid
- X5 is any amino acid
- X6 is an amino acid having an optionally substituted alkyl group in the side chain or a secondary amino acid having an optionally substituted alkyl group
- X7 is an amino acid having an aromatic ring optionally substituted on the side chain
- X8 is an amino acid having an aromatic ring optionally substituted on the side chain
- X9 is any amino acid
- X10 is any amino acid, peptides, including [3] The peptide of [2], wherein X1 is an amino acid having a condensed ring optionally substituted on a side chain.
- [4] The peptide of [2], wherein X1 is Nal1, W6N, W7N or W.
- [5] The peptide according to any one of [2]-[4], wherein X2 is V, K, KCOpipzaa, KCOmeglumine or Q.
- [6] The peptide of any one of [2]-[4], wherein X2 is V, K, KCOpipzaa, or KCOmeglumine.
- [7] The peptide of any one of [2]-[6], wherein X3 is Y, 4Py, A, E, F4G, Q, K, F3G, or 3Py.
- X10 is an amino acid other than a substituted or unsubstituted aromatic amino acid and a sulfur-containing amino acid.
- [28] The peptide according to any one of [1]-[27], which has TGF- ⁇ antagonist activity.
- a medical or diagnostic composition comprising the peptide of any one of [1]-[28].
- a composition for research comprising the peptide of any one of [1]-[28], excluding compositions used as additives to media for culturing organoids, Research composition.
- the peptide of the present invention has TGF- ⁇ binding activity and, preferably, TGF- ⁇ antagonist activity. It is useful as a pharmaceutical composition for cancer, liver disease, etc., a diagnostic composition, a research composition, and the like.
- FIG. 1 shows the results of measuring the inhibitory activity of TGFb1 — 012 (SEQ ID NO: 13) against TGF- ⁇ 1 and TGF- ⁇ 2 by SBE reporter assay.
- black circles indicate TGF- ⁇ 1 and black squares indicate TGF- ⁇ 2.
- the horizontal axis indicates the concentration (nM) of TGF- ⁇ 1 — 012 (SEQ ID NO: 13), and the vertical axis indicates the inhibitory activity.
- W6N 6-aza-L-tryptophan (CAS No. 149704-63-2);
- W7N L-7-azatryptophan (CAS No. 49758-35-2);
- KCOpipzaa N6-(4-(carboxymethyl)piperazine-1-carbonyl)-L-lysine (CAS No. N/A);
- KCO meglumine N6-(methyl ((2S,3R,4R,5R)-2,3,4,5,6-pentahydroxyhexyl)carbamoyl)-L-lysine;
- 4Py 4-pyridyl-L-alanine (CAS No. 37535-49-2);
- PeG phenethylglycine (CAS No. 7738-38-7);
- F4G p-guanidino L-phenylalanine (CAS No. 59574-11-7);
- F3G 3-[(aminoiminomethyl)amino]-L-phenylalanine (CAS No. 1019057-42-1);
- 3Py 3-(3-pyridyl)-L-alanine (CAS No. 64090-98-8);
- MeG methylglycine (CAS No. 107-97-1);
- PEG10c 1-amino-3,6,9,12,15,18,21,24,27,30-decaoxatritriacontane-33-oic acid
- MePEG8c 2,5,8,11,14,17,20,23-octaoxahexacosane-26-oic acid
- OCOmPEG 10000 Methoxy polyethylene glycol carbonate (average molecular weight 10,000).
- Peptide (A) The present invention relates to peptides.
- the peptide of the invention has the following amino acid sequence: F-Nal1-VVNVYDD-PeG-V-Nal1-YHVCG (SEQ ID NO: 2); or, 1 selected from the group consisting of the 2nd, 4th, 7th, 8th, 9th, 10th, 12th, 13th, 14th, 15th and 17th amino acid residues of the above amino acid sequences; - A peptide comprising an amino acid sequence having a substitution, addition, deletion or insertion at 11 amino acid residues.
- SEQ ID NO: 2 is a peptide that was confirmed to have TGF- ⁇ binding activity and TGF- ⁇ antagonist activity in the Examples of the present specification.
- amino acid residues of the amino acid sequence of SEQ ID NO: 2 may have substitutions, additions, deletions or insertions at 1-11 amino acid residues.
- the number of amino acids substituted, deleted, added and/or inserted may be 1 or more and 10 or less, and the lower limit is 1.
- the upper limit is 10, 9, 8, 7, 6, 5, 4, 3, 2 and the minimum is 1.
- amino acid substitutions are preferably conservative amino acid substitutions.
- Constant amino acid substitution means substitution with functionally equivalent or similar amino acids.
- Conservative amino acid substitutions in a peptide result in static changes in the amino acid sequence of the peptide.
- one or more amino acids of similar polarity act functionally equivalently, resulting in static variations in the amino acid sequence of such peptides.
- substitutions within a group can be considered conservative in structure and function.
- the role played by a particular amino acid residue can be determined by its implications in the three-dimensional structure of the molecule containing that amino acid. For example, cysteine residues can have a less polar, oxidized (disulfide) form compared to the reduced (thiol) form.
- the long aliphatic portion of the arginine side chain may constitute structurally and functionally important features.
- side chains containing aromatic rings can contribute to ion-aromatic or cation-pi interactions.
- substitution of amino acids having these side chains with amino acids belonging to acidic or non-polar groups may be structurally and functionally conservative.
- Residues such as proline, glycine, cysteine (disulfide form) can have a direct effect on backbone conformation and often cannot be substituted without structural distortion.
- Conservative amino acid substitutions include specific substitutions based on side chain similarity (e.g., Leninja, Biochemistry, Second Revised Edition, 1975, pp. 73-75: L. Lehninger, Biochemistry, 2nd edition, pp 73-75, Worth Publisher, New York (1975)) and typical substitutions.
- conservative amino acid substitution is preferably substitution with an amino acid belonging to the same group to which a certain amino acid belongs, for example, in groups in which natural amino acids are divided based on the properties of their common side chains as follows.
- Hydrophobic (also referred to as non-polar) amino acids amino acids exhibiting hydrophobicity (non-polarity), such as alanine (also referred to as “Ala” or simply “A”), glycine (also referred to as “Gly” or simply “G”) , valine (also referred to as “Val” or simply “V”), leucine (also referred to as “Leu” or simply “L”), isoleucine (also referred to as “Ile” or simply “I”), proline (also referred to as “Pro” or simply Also referred to as “P”), phenylalanine (also referred to as “Phe” or simply “F”), tryptophan (also referred to as “Trp” or simply “W”), tyrosine (also referred to as “Tyr” or simply “Y”), methionine ( Also referred to as “Met” or simply “M”).
- alanine also referred to as “Ala” or simply “
- hydrophobic amino acids can be further divided into the following groups.
- Aliphatic amino acid an amino acid having a fatty acid or hydrogen in its side chain, including Ala, Gly, Val, Ile, and Leu.
- Aliphatic/branched chain amino acids amino acids having branched fatty acids in their side chains, including Val, Ile, and Leu.
- Aromatic amino acid An amino acid having an aromatic ring in its side chain, including Trp, Tyr, and Phe.
- Hydrophilic (also referred to as polar) amino acids amino acids exhibiting hydrophilicity (polarity), such as serine (also referred to as “Ser” or simply “S”), threonine (also referred to as “Thr” or simply “T”), cysteine (also referred to as “Cys” or simply “C”), asparagine (also referred to as “Asn” or simply “N”), glutamine (also referred to as “Gln” or simply “Q”), aspartic acid (“Asp” or simply “ D”), glutamic acid (also referred to as “Glu” or simply “E”), lysine (also referred to as “Lys” or simply “K”), arginine (also referred to as “Arg” or simply “R” ), histidine (also abbreviated as “His” or simply “H”).
- polarity such as serine (also referred to as “Ser” or simply “S”), threonine (also referred
- hydrophilic amino acids can be further divided into the following groups.
- Acidic amino acids amino acids whose side chains are acidic, including Asp, Glu, Basic amino acid: an amino acid having a basic side chain, including Lys, Arg, and His.
- Neutral amino acid an amino acid whose side chain is neutral, including Ser, Thr, Asn, Gln, and Cys.
- Gly and Pro can be divided into “amino acids that affect the orientation of the main chain", and amino acids containing sulfur molecules in side chains, Cys and Met, can also be divided into “sulfur-containing amino acids”.
- groups having aromatic side chains include Trp, Tyr, and Phe.
- amino acid includes not only natural amino acids but also non-natural amino acids.
- Non-natural amino acids include, for example, N-alkylamino acids obtained by N-alkylating the above-described natural amino acids, lower branched or unbranched nitrogens forming peptide bonds (eg, C1-C5, preferably , C1-C3, more preferably those modified with an alkyl group of C1).
- the N-alkylamino acid is preferably N-ethylamino acid, N-butylamino acid or N-methylamino acid, more preferably N-methylamino acid.
- Non-natural amino acids include D-type amino acids (also referred to as D-amino acids), ⁇ -amino acids, ⁇ -amino acids, amino acid mutants, chemically modified amino acids such as amino acid derivatives, and in vivo amino acids such as norleucine and ornithine. Amino acids that are not protein building blocks are included.
- amino acids in which a functional group is further added to the side chain of a natural amino acid or substituted with another functional group e.g., amino acids having substitutions or additions to the side chain arylene group, alkylene group, etc., side chain an arylene group, an amino acid with an increased number of carbon atoms in the alkylene group or alkyl group, an amino acid with a substitution on the aromatic ring of the side chain, or an amino acid with a structure in which the carboxylic acid functional group amino acid in the side chain is substituted with a sulfonic acid group.
- heterocyclized and condensed amino acids such as derivatives
- a structure such as a functional group By adding or substituting a structure such as a functional group to the side chain of a natural amino acid, properties different from those of a natural amino acid can be imparted. That is, the aforementioned grouping of naturally occurring amino acids based on their common side chain properties can include unnatural amino acids with similar side chain properties. Thus, non-natural amino acids exhibiting side chain properties similar to those of certain amino acids can also be included as targets for conservative amino acid substitutions.
- Non-naturally occurring amino acids include, without limitation, N-methyl amino acids, 4Py, Nal1, W6N, W7N, KCOpipzaa, KCOmeglumine, PeG, and the like.
- Nal1, PeG can be divided into hydrophobic amino acids
- 4Py, W7N, W6N can be divided into hydrophilic amino acids
- 4Py, W7N, W6N are basic amino acids
- 4Py, Nal1, PeG, W6N, W7N are aromatic It can also be divided into amino acids.
- N-methyl amino acids can be classified as N-alkyl amino acids or according to the nature of the side chain of the original non-N-methylated amino acids.
- D-amino acids can be classified as D-amino acids, but also according to the nature of their side chains, N-methyl amino acids can also be classified as N-alkyl amino acids, N-methylated They can also be classified according to the nature of the side chain of the original amino acid that has not been modified.
- the peptide is, without limitation, in one aspect, a cyclic peptide.
- Cyclic peptide is described in detail in “3.
- Peptide (B) As used herein, "without limitation” and “in one aspect” may be used interchangeably.
- the peptide may contain additional amino acid residues in addition to SEQ ID NO:2. "Additional amino acid residue” is described in detail in “3. Peptide (B)”.
- the peptide in one aspect, may contain a linker, preferably at the C-terminus.
- Linker will be described in detail in "3. Peptide (B)".
- G at the C-terminus (17th amino acid residue) of SEQ ID NO: 2 is a linker.
- the peptide may have a linker other than G, such as a PEG linker. Alternatively, it may have another linker in addition to the C-terminal G. For example, aspects such as glycine-rich peptides are also included.
- the peptide preferably has TGF- ⁇ binding activity, more preferably TGF- ⁇ 1 binding activity. Said peptide preferably has TGF- ⁇ antagonist activity. “Having TGF- ⁇ 1 binding activity” and “having TGF- ⁇ antagonist activity” are described in detail in “3. Peptides (B)”.
- Peptide in the present specification includes both peptide (A) and peptide (B) unless otherwise specified.
- Peptide (B) The present invention relates to peptides.
- the peptides of the invention have the following amino acid sequences: F-X1-VX2-N-V-X3-X4-X5-X6-V-X7-X8-X9-X10-C (SEQ ID NO: 1) put it here, X1 is an amino acid having an aromatic ring optionally substituted on the side chain; X2 is any amino acid; X3 is any amino acid; X4 is any amino acid; X5 is any amino acid; X6 is an amino acid having an optionally substituted alkyl group in the side chain or a secondary amino acid having an optionally substituted alkyl group; X7 is an amino acid having an aromatic ring optionally substituted on the side chain; X8 is an amino acid having an aromatic ring optionally substituted on the side chain; X9 is any amino acid; X10 is any amino acid, including.
- Amino acid having an optionally substituted aromatic ring on the side chain is an amino acid having an aromatic ring on the side chain, for example, having a phenyl group or an indole ring as the aromatic ring, and a C etc. may be substituted for other molecules such as N.
- Aromatic rings may be heterocyclic. Alternatively, for example, it may be an amino acid in which the hydroxyl group of the side chain of tyrosine is substituted with another functional group.
- the "amino acid having an optionally substituted aromatic ring on the side chain” is, in one aspect, preferably an amino acid having a condensed ring on the side chain.
- amino acid having an indole ring or a naphthalene structure may be substituted with other molecules such as N.
- Substituents are not particularly limited, and may be arbitrarily selected from alkyl groups, cycloalkyl groups, hydroxyl groups, halogens, and the like.
- the "amino acid having an aromatic ring optionally substituted on the side chain” includes, for example, tyrosine, tryptophan, histidine, phenylalanine and the like. It may be a non-natural amino acid such as Nal1, W6N, W7N or W.
- amino acid having an optionally substituted alkyl group in the side chain refers to amino acids having an alkyl group in the side chain, such as lysine, alanine, proline, glycine, leucine, etc., and the side chains of these amino acids is an amino acid that may or may not be substituted.
- Alkyl groups may be linear or cyclic.
- the “secondary amino acid having an optionally substituted alkyl group” is a secondary amino acid and includes any natural or non-natural amino acid having a cyclic or chain structure.
- the substituent is particularly Not limited.
- X1 is an amino acid having a condensed ring optionally substituted in the side chain. In one aspect, X1 is Nal1, W6N, W7N or W.
- X2 is V, K, KCOpipzaa, KCOmeglumine or Q. In one aspect, X2 is V, K, KCOpipzaa, or KCOmeglumine. In one aspect, X2 is not E.
- X3 is Y, 4Py, A, E, F4G, Q, K, F3G, or 3Py. In one aspect, X3 is Y or 4Py.
- X4 is an amino acid other than substituted or unsubstituted aromatic amino acids and sulfur-containing amino acids.
- amino acids having an aromatic ring are, for example, tyrosine, tryptophan, histidine, phenylalanine and the like.
- sulfur-containing amino acids are, for example, methionine, cysteine and the like.
- X4 is D, A, Q, K or E. In one aspect, X4 is D.
- X5 is an amino acid other than substituted or unsubstituted aromatic amino acids and sulfur-containing amino acids. In one aspect, X5 is D, E, KCOpipzaa, KCOmeglumine, A, Q, or K. In one aspect, X5 is D, E, KCOpipzaa or KCOmeglumine.
- X6 is PeG, K or MeG. In one aspect, X6 is Peg. In one aspect, X6 is not A, N, Q, S (D-configuration), P (D-configuration).
- X7 is an amino acid having a condensed ring optionally substituted in the side chain. In one aspect, X7 is Nal1, W6N, or W. In one aspect, X7 is Nal1. In one aspect, X7 is not A, Q, K, E.
- X8 is Y, 4Py, 3Py or E. In one aspect, X8 is Y or 4Py. In one aspect, X8 is not A, Q, K, F3G, F4G.
- X9 is an amino acid other than substituted or unsubstituted aromatic amino acids and sulfur-containing amino acids.
- amino acids having an aromatic ring are, for example, tyrosine, tryptophan, phenylalanine and the like.
- sulfur-containing amino acids are, for example, methionine, cysteine and the like.
- X9 is H, A, Q or E. In one aspect, X9 is H.
- X10 is an amino acid other than substituted or unsubstituted aromatic amino acids and sulfur-containing amino acids.
- Amino acids having an aromatic ring include, for example, tyrosine, tryptophan, histidine, phenylalanine, and the like.
- sulfur-containing amino acids are, for example, methionine, cysteine and the like.
- X10 is V, E, KCOpipzaa, KCOmeglumine, Q, K, or A.
- X10 is V, E, KCOpipzaa or KCOmeglumine.
- the peptide in one aspect, is a cyclic peptide.
- Cyclic peptide refers to a peptide in which two amino acids are bonded and all or part of it is cyclic. The bond type between the two amino acids is not particularly limited.
- Amide bond between the carboxy group of one amino acid and the amino group of the other amino acid thioester bond between the carboxy group of one amino acid and the thiol group of the other amino acid, thiol group of one amino acid and the other amino acid
- a disulfide bond between the thiol group, a cyclic structure formed by lactam ring formation or a macrocyclization reaction, and those having a lasso peptide-like structure are also included in the cyclic peptide.
- the amide bond is not limited to one formed by bonding the carboxy group of one amino acid and the amino group of the other amino acid, and the As a result, it suffices if they are bound by an amide bond. The same is true for other bond types. Preferred is cyclization by binding of a chloroacetylated amino acid and a cysteine residue, which will be described later.
- the cyclic peptide may partially form a cyclic structure and may have a linear portion.
- Peptides generally have poor metabolic stability in vivo, and because of their large size, they have the problem of being difficult to permeate cell membranes. A method of cyclizing a peptide has been taken to address such a problem. Peptide cyclization improves protease resistance, improves metabolic stability, and restricts conformational changes, suggesting increased rigidity, membrane permeability, and target protein affinity. It has been.
- the peptide has a cyclic structure in which a chloroacetylated amino acid and a cysteine residue contained in the peptide are bound. In one aspect, the peptide has a cyclic structure in which the N-terminal amino acid (first amino acid residue) and the cysteine residue contained in the peptide are bound. In one aspect, the peptide has a cyclic structure in which the N-terminal amino acid (first amino acid residue) and the 16th cysteine residue contained in the peptide are bound. In one aspect, the peptide has a cyclic structure in which the chloroacetylated N-terminal amino acid (first amino acid residue) and the 16th cysteine residue contained in the peptide are bound. “Chloroacetylation” may also be “halogen acetylation” with other halogens. “Acetylation” may also be “acylation” with an acyl group other than an acetyl group.
- amino acids may be modified for cyclization of the peptide.
- Amino acids partially modified as such are also included.
- a chloroacetyl group may be added to an amino acid located at the N-terminus and cyclized by binding to a cysteine residue in the peptide.
- Various (natural/non-natural) amino acids are also included in the amino acids of the present application.
- the peptide is SEQ ID NOS: 2-33, or It comprises or consists of one amino acid sequence in any of SEQ ID NOS: 2, 4-13, and 15-33 that does not have a C-terminal glycine (G).
- the peptide is SEQ ID NOS: 2-33, or It is a cyclic peptide containing or consisting of one amino acid sequence in any of SEQ ID NOS: 2, 4-13, and 15-33, which does not have glycine (G) at the C-terminus.
- the peptide comprises or consists of one amino acid sequence in any of SEQ ID NOs: 34-69, or an amino acid sequence of SEQ ID NOs: 34-69 without a C-terminal glycine (G). .
- the peptide comprises or consists of one amino acid sequence in any of SEQ ID NOs: 34-69, or an amino acid sequence of SEQ ID NOs: 34-69 without a C-terminal glycine (G). , is a cyclic peptide.
- the peptide comprises any of SEQ ID NOS: 2-33, or an amino acid sequence without C-terminal glycine (G) among SEQ ID NOS: 2, 4-13, and 15-33, plus an additional amino acid residue may contain groups.
- Said peptide comprises any one of SEQ ID NOS: 34-69, or an amino acid sequence without glycine (G) at the C-terminus of SEQ ID NOS: 34-69, plus an additional amino acid It may contain residues.
- the additional amino acid residue may be contained in a peptide forming a cyclic structure, or an amino acid residue may be added to the cyclic peptide in the form of a linker.
- the number of amide bonds (number and length of amino acids) of peptides and peptide moieties is not particularly limited. Total amino acid residues (refers to the number of amino acid residues contained in a peptide forming a cyclic structure, and if further amino acid residues are added in a linker form from the cyclic peptide, those amino acids are not included) is 22 residues Within is preferred.
- the number of amino acids is 6 or more, 7 or more, 8 or more, 9 or more, 10 or more, 11 or more, 12 or more, preferably 20 or less, 19 or less, 18 or less. It is more preferably 15 or more and 18 or less amino acids, and most preferably 16 or 17 amino acids.
- Linkers include, for example, the aforementioned amino acid linkers (peptide linkers), chemical linkers, fatty acid linkers, nucleic acid linkers, sugar chain linkers, and the like, and may also be complexes such as chemical linkers and peptide linkers.
- a chemical linker is, for example, a PEG (Polyethyleneglycol) linker. For example, it may be a PEG linker consisting of 1-24 ethylene glycol units.
- the linker may also be a fatty acid linker containing divalent chemical moieties derived from fatty acids.
- An amino acid (peptide) linker is a linker comprising at least one amino acid, for example the sequence [Gly-Gly-Gly-Gly-Ser]n (formula in which n is 1, 2, 3, 4, 5 or 6) or serine-rich peptide linkers as described in US Pat. No. 5,525,491.
- a linker may change physical properties (eg, solubility) of the peptide.
- linker addition position it does not matter where it is added.
- it may be bound to Cys located on the C-terminal side, or may be bound to an amino acid contained in a cyclic peptide. It is preferably bound to Cys located on the C-terminal side or bound to side chains of amino acids contained in the cyclic peptide.
- the linker is included at the C-terminus.
- a single linker may be added, or a plurality of the same or different linkers may be added.
- Gly-Lys may be bound as an amino acid linker
- a PEG linker may be bound to the side chain terminal of Lys.
- the peptide may form a multimer via a linker or the like.
- the peptides may be homomers composed of peptides having the same sequence, or heteromers composed of peptides having different sequences.
- the C-terminal glycine (G) of SEQ ID NOs: 2, 4-13, 15-33 is a linker.
- the peptide may have a linker other than G. Alternatively, it may have another linker in addition to the C-terminal G.
- the peptide has TGF- ⁇ binding activity, more preferably TGF- ⁇ 1 binding activity or TGF- ⁇ 2 binding activity.
- the peptide has TGF- ⁇ 1 binding activity and TGF- ⁇ 2 binding activity.
- the peptide has TGF- ⁇ antagonist activity, more preferably TGF- ⁇ 1 antagonist activity or TGF- ⁇ 2 antagonist activity. In a further aspect, preferably the peptide having TGF- ⁇ antagonist activity has TGF- ⁇ 1 binding activity.
- the term "having TGF- ⁇ 1 binding activity" is not limited to binding activity only to TGF- ⁇ 1, and may include binding to TGF- ⁇ 2.
- the peptide has TGF- ⁇ 1 antagonist activity and TGF- ⁇ 2 antagonist activity. Also preferably, the peptide having TGF- ⁇ 1 antagonist activity and TGF- ⁇ 2 antagonist activity has TGF- ⁇ 1 binding activity and TGF- ⁇ 2 binding activity.
- TGF- ⁇ transforming growth factor ⁇
- TGF- ⁇ transforming growth factor ⁇
- BMP bone-inducing factor
- TGF- ⁇ which is an embodiment of the present invention is TGF- ⁇ 1 and/or TGF- ⁇ 2, preferably TGF- ⁇ 1.
- TGF- ⁇ refers to TGF- ⁇ 1 unless otherwise specified.
- TGF- ⁇ binds to serine/threonine kinase-type receptors composed of type I and type II receptor subunits and induces various reactions in the body by transducing signals through Smad phosphorylation.
- TGF- ⁇ it is known to have many functions, such as controlling cell proliferation and differentiation, and affecting the production and deposition promotion of extracellular matrix proteins such as collagen and fibronectin (Massague, 2012; Zhang et al., 2017).
- TGF- ⁇ is used in, but not limited to, mammals, including primates such as humans and chimpanzees, laboratory animals such as rats, mice, and rabbits, livestock animals such as pigs, cattle, horses, sheep, and goats, and dogs. and TGF- ⁇ of pets such as cats, preferably human TGF- ⁇ , more preferably human TGF- ⁇ 1 (NCBI GENE ID: 7040) and human TGF- ⁇ 2 (NCBI GENE ID: 7042).
- mammals including primates such as humans and chimpanzees, laboratory animals such as rats, mice, and rabbits, livestock animals such as pigs, cattle, horses, sheep, and goats, and dogs.
- TGF- ⁇ of pets such as cats, preferably human TGF- ⁇ , more preferably human TGF- ⁇ 1 (NCBI GENE ID: 7040) and human TGF- ⁇ 2 (NCBI GENE ID: 7042).
- TGF- ⁇ 1 binding activity means an activity that specifically binds to TGF- ⁇ 1 or an activity that specifically binds to both TGF- ⁇ 1 and TGF- ⁇ 2.
- the binding state of the peptide of the present invention to TGF- ⁇ 1 can be expressed as indicators such as affinity constant Ka, dissociation constant Kd (also referred to as KD), binding rate constant kon, and dissociation rate constant koff. .
- the affinity constant Ka and the dissociation constant Kd are indicators of the binding affinity between two molecules in equilibrium, that is, the strength of binding, and the dissociation constant Kd is the reciprocal of the affinity constant Ka.
- a smaller value of the dissociation constant Kd means stronger binding.
- affinity constant Ka dissociation constant Kd (also referred to as KD)
- association rate constant kon dissociation rate constant koff
- dissociation rate constant koff dissociation rate constant koff
- the binding state of the peptide to TGF- ⁇ can be measured by a known method. For example, it can be measured by surface plasmon resonance spectroscopy (SPR).
- SPR surface plasmon resonance spectroscopy
- the surface plasmon resonance spectrum analysis can be performed using, for example, the BIACORE system (BIACORE), which is a biosensor (biomolecular mutual analysis device).
- the Kd dissociation constant Kd for the binding of the peptide to, for example, human TGF- ⁇ is, without limitation, 50 nM or less, 30 nM or less, 20 nM or less, 15 nM or less, 10 nM or less, 8 nM or less, 6 nM. Below, it is 5 nM or less.
- the lower limit of the dissociation constant Kd of binding between the peptide and human TGF- ⁇ is not particularly limited.
- the peptide dissociation constant Kd is 0.01 nM or greater, 0.05 nM or greater, 0.1 nM or greater, 0.2 nM or greater, 0.3 nM or greater, 0.4 nM or greater, 0.5 nM or greater.
- the dissociation constant Kd of said peptide is 0.01-50 nM, preferably 0.05-30 nM, more preferably 0.2-15 nM, particularly preferably 0.3-10 nM, most preferably 0.3-10 nM. 4-6 nM.
- the binding of the peptide to TGF- ⁇ can also be examined by, for example, ELISA (enzyme-linked immunosorbent assay).
- ELISA enzyme-linked immunosorbent assay
- ELISA may be performed, for example, by using TGF- ⁇ 1 beads and a peptide with an HA tag sequence added to the C-terminus and examining the binding activity.
- the binding between the peptide and TGF- ⁇ is preferably non-covalent binding.
- the peptide has a cyclic structure as shown in the chemical formulas of Examples 1-6.
- TGF- ⁇ antagonist activity refers to the activity of inhibiting or attenuating the binding and acting of TGF- ⁇ on TGF ⁇ receptors. In the present invention, those that bind to TGF- ⁇ and exhibit an antagonistic effect are particularly preferred.
- TGF- ⁇ antagonist activity may be evaluated, for example, by an SBE reporter assay using the SBE reporter-HEK293 cell line (BP Bioscience).
- the inhibitory activity of a peptide can be calculated with 0% inhibition as the maximum signal induced by TGF- ⁇ and 100% inhibition as no stimulation.
- the inhibitory activity is 5% or more, 10% or more, 20% or more, 30% or more, 40% or more, 50% or more, 60% 70% or more, 80% or more, 90% or more are inhibited.
- the peptides of the present invention can be produced by any known method for peptide production, such as the following.
- the hydroxyl group of a resin having a hydroxyl group and the carboxyl group of the first amino acid (usually the C-terminal amino acid of the target peptide) whose ⁇ -amino group is protected with a protecting group is esterified.
- dehydration condensation agents such as 1-mesitylenesulfonyl-3-nitro-1,2,4-triazole (MSNT), dicyclohexylcarbodiimide (DCC) and diisopropylcarbodiimide (DIC) can be used as the esterification catalyst.
- the protective group for the ⁇ -amino group of the first amino acid is eliminated, and a second amino acid having all functional groups other than the carboxy group of the main chain protected is added to activate the carboxy group. , joins the first and second amino acids. Furthermore, deprotecting the ⁇ -amino group of the second amino acid, adding a third amino acid in which all functional groups other than the carboxy group of the main chain are protected, activating the carboxy group, the second and A third amino acid is attached. After repeating this process and synthesizing a peptide of the desired length, all functional groups are deprotected.
- Resins for solid-phase synthesis include, for example, Merrifield resin, MBHA resin, Cl-Trtre resin, SASRIN resin, Wang resin, Rink amide resin, HMFS resin, Amino-PEGA resin (Merck), HMPA-PEGA resin (Merck). ) and the like. These resins can be used after washing with a solvent (dimethylformamide (DMF), 2-propanol, methylene chloride, etc.).
- a solvent dimethylformamide (DMF), 2-propanol, methylene chloride, etc.
- ⁇ -amino-protecting groups examples include benzyloxycarbonyl (Cbz or Z) group, tert-butoxycarbonyl (Boc) group, fluorenylmethoxycarbonyl (Fmoc) group, benzyl group, allyl group, allyloxycarbonyl (Alloc) group and the like.
- Cbz groups can be deprotected by hydrofluoric acid, hydrogenation, etc.
- Boc groups can be deprotected by trifluoroacetic acid (TFA)
- Fmoc groups can be deprotected by treatment with piperidine or pyrrolidine.
- methyl ester for example, methyl ester, ethyl ester, allyl ester, benzyl ester, tert-butyl ester, cyclohexyl ester and the like can be used.
- Condensing agents include, for example, dicyclohexylcarbodiimide (DCC), diisopropylcarbodiimide (DIC), 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide (EDC or WSC), (1H-benzotriazol-1-yloxy)tris (dimethylamino)phosphonium hexafluorophosphate (BOP), 1-[bis(dimethylamino)methyl]-1H-benzotriazolium-3-oxide hexafluorophosphate (HBTU) and the like.
- DCC dicyclohexylcarbodiimide
- DIC diisopropylcarbodiimide
- EDC or WSC 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide
- BOP 1-[bis(dimethylamino)methyl]-1H-benzotriazolium-3-oxide hexafluor
- Cleavage of the peptide chain from the resin can be performed by treatment with an acid such as TFA or hydrogen fluoride (HF).
- an acid such as TFA or hydrogen fluoride (HF).
- the production of peptides by genetic recombination can be carried out using nucleic acids encoding said peptides.
- the nucleic acid encoding the peptide may be DNA or RNA.
- a nucleic acid encoding the peptide can be prepared by a known method or a method based thereon. For example, it can be synthesized by an automated synthesizer. A restriction enzyme recognition site may be added to insert the resulting DNA into a vector. Alternatively, a base sequence encoding an amino acid sequence for cutting out the resulting peptide chain with an enzyme or the like may be incorporated.
- the nucleic acid when the peptide is fused with a membrane-permeable peptide or the like, the nucleic acid also includes a nucleic acid encoding the membrane-permeable peptide.
- nucleic acid encoding a peptide of interest and a peptide binding thereto is used as the nucleic acid.
- an expression vector is prepared using the nucleic acid encoding the peptide.
- the nucleic acid can be inserted downstream of the promoter of the expression vector as it is, or after digestion with a restriction enzyme, addition of a linker, or the like.
- vectors include E. coli-derived plasmids (pBR322, pBR325, pUC12, pUC13, pUC18, pUC19, pUC118, pBluescript II, etc.), Bacillus subtilis-derived plasmids (pUB110, pTP5, pC1912, pTP4, pE194, pC194, etc.), and yeast-derived plasmids.
- Plasmids pSH19, pSH15, YEp, YRp, YIp, YAC, etc.
- bacteriophages e phage, M13 phage, etc.
- viruses retrovirus, vaccinia virus, adenovirus, adeno-associated virus (AAV), cauliflower mosaic virus, tobacco mosaic virus, baculovirus, etc.
- cosmids and the like.
- the promoter can be appropriately selected according to the type of host.
- the host is animal cells, for example, SV40 (simian virus 40)-derived promoters and CMV (cytomegalovirus)-derived promoters can be used.
- the host is E. coli, the trp promoter, T7 promoter, lac promoter and the like can be used.
- Expression vectors include, for example, DNA replication origin (ori), selectable markers (antibiotic resistance, auxotrophy, etc.), enhancers, splicing signals, poly-A addition signals, tags (FLAG, HA, GST, GFP, etc.) can also be incorporated.
- a suitable host cell is transformed with the expression vector.
- a host can be appropriately selected in relation to the vector.
- Escherichia coli, Bacillus subtilis, Bacillus), yeast, insects or insect cells, animal cells and the like are used.
- Animal cells that can be used include, for example, HEK293T cells, CHO cells, COS cells, myeloma cells, HeLa cells, and Vero cells. Transformation can be carried out according to known methods such as the lipofection method, calcium phosphate method, electroporation method, microinjection method and particle gun method, depending on the type of host.
- the peptide of interest is expressed by culturing the transformant according to a conventional method.
- Purification of the peptide from the culture of the transformant is carried out by collecting the cultured cells, suspending them in an appropriate buffer, disrupting the cells by sonication, freezing and thawing, and crudely extracting them by centrifugation or filtration. get the liquid If the peptide is secreted into the culture medium, the supernatant is collected.
- Purification from crude extracts or culture supernatants is also performed by known methods or similar methods (e.g., salting out, dialysis, ultrafiltration, gel filtration, SDS-PAGE, ion exchange chromatography, affinity chromatography, reversed-phase high-performance liquid chromatography, etc.).
- the resulting peptide may be converted from a free form to a salt or from a salt to a free form by a known method or a method analogous thereto.
- the translation synthesis system may be a cell-free translation system.
- Cell-free translation systems generally allow expression products to be obtained in a highly pure form without purification.
- Cell-free translation systems include, for example, ribosomal proteins, aminoacyl-tRNA synthetase (ARS), ribosomal RNA, amino acids, rRNA, GTP, ATP, translation initiation factor (IF), elongation factor (EF), terminator (RF), and Includes ribosome regeneration factors (RRFs), as well as other factors required for translation.
- Escherichia coli extract or wheat germ extract may be added to increase expression efficiency.
- rabbit erythrocyte extract or insect cell extract may be added.
- RNA polymerase may also be used for transcription from gene DNA.
- E. coli-derived systems include Roche Diagnostics' RTS-100 (registered trademark), Gene Frontier's PURE SYSTEM, and NEW ENGLAND Biolabs' PURE Express In Vitro Protein Synthesis Kit.
- a system using a wheat germ extract those manufactured by ZoiGene, Cellfree Science, etc. can be used.
- aminoacyl-tRNA synthesized by natural aminoacyl-tRNA synthetase instead of aminoacyl-tRNA synthesized by natural aminoacyl-tRNA synthetase, artificial aminoacyl-tRNA obtained by linking (acylating) a desired amino acid or hydroxy acid to tRNA may be used.
- aminoacyl-tRNAs can be synthesized using artificial ribozymes.
- Such ribozymes include flexizymes (H. Murakami, H. Saito, and H. Suga, (2003), Chemistry & Biology, Vol. 10, 655-662; and WO2007/066627, etc.). Flexizyme is also known by other names such as original flexizyme (Fx) and modified dinitrobenzyl flexizyme (dFx), enhanced flexizyme (eFx) and aminoflexizyme (aFx).
- Fx original flexizyme
- dFx modified dinitrobenzyl flexizyme
- eFx enhanced flexizyme
- aminoflexizyme aminoflexizyme
- a desired codon can be translated in association with the desired amino acid or hydroxy acid.
- a special amino acid may be used as the desired amino acid.
- the unnatural amino acids required for cyclization as described above can also be introduced into the connecting peptide by this method.
- Chemical synthesis of said peptides uses a variety of methods commonly used in the art, including, for example, stepwise solid phase synthesis, semi-synthesis of peptide fragments via conformationally assisted religation, chemical ligation.
- can be synthesized by Synthesis of said peptides is described, for example, in K.K. J. Jensen, P. T. Shelton, S. L. Pedersen, Peptide Synthesis and Applications, 2nd Edition, Springer, 2013, etc., using various solid-phase techniques.
- a preferred strategy is based on the combination of the Fmoc group, which temporarily protects the ⁇ -amino group and allows selective removal with a base, and the protective group, which temporarily protects the side chain functional group and is stable under de-Fmoc conditions. .
- a selection of such general peptide side chains can be found in Peptide Synthesis and Applications, 2nd ed. B. Fields, R. L. Noble, Solid Phase Peptide Synthesis Utilizing 9-Fluorenylmethoxycarbonyl Amino Acids, Int. J. Peptide Protein Res.
- peptide side chain protecting groups include, for example, the benzyl, tert-butyl and trityl (Trt) groups for the hydroxy groups of serine and threonine, the hydroxy groups of tyrosine; 2-bromobenzyloxycarbonyl and tert-butyl groups for groups, Boc, methyltetrazolethiol (Mtt), Alloc and ivDde groups for amino groups of lysine side chains, Trt and Boc groups for the imidazole group of histidine , 2,2,4,6,7-pentamethyldihydrobenzofuran-5-sulfonyl group (Pbf) group for arginine guanidyl group, tert-butyl group for carboxy group including glutamic acid and aspartic acid, allyl group, and There is the 3-methylpentane (Mpe) group, the Trt group for the carboxamide groups of glutamine and
- the peptide can be synthesized in a stepwise manner on the solid-phase resin described above.
- the C-terminal amino acid used and all amino acids and peptides used in the synthesis must have the ⁇ -amino protecting group selectively removed during the synthesis process.
- the above-mentioned solid-phase resin is used, and the C-terminal carboxyl group of a peptide whose N-terminus is appropriately protected with Fmoc or the like or the C-terminal carboxyl group of an amino acid whose N-terminus is protected with Fmoc is activated with an appropriate reagent and then solidified. Start by adding to an amino group on the phase resin.
- Subsequent elongation of the peptide chain can be achieved by successively repeating removal of the N-terminal protecting group (Fmoc group) and subsequent condensation of the protected amino acid derivative according to the amino acid sequence of the target peptide. In addition, these can release the target peptide at the final stage.
- Fmoc group N-terminal protecting group
- conditions for liberation are described in Teixeira, W.; E. Benckhuijsen, P.; E. de Koning, A. R. P. M. Valentijn, J.; W. Drijfhout, Protein Pept. Lett. , 2002, 9, 379-385.
- a typical example is TFA/Water/TIS/DODT (volume ratio 92.5:2.5:2.5:2.5).
- Synthesis of the peptides described herein can be performed using a single or multi-channel peptide synthesizer, such as the CEM Liberty Blue synthesizer or the Biotage Syro I synthesizer or their successors.
- a single or multi-channel peptide synthesizer such as the CEM Liberty Blue synthesizer or the Biotage Syro I synthesizer or their successors.
- Condensing agents include, for example, dicyclohexylcarbodiimide (DCC), diisopropylcarbodiimide (DIPCDI), 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide (EDC or WSC), (1H-benzotriazol-1-yloxy)tris (dimethylamino)phosphonium hexafluorophosphate (BOP), 1-[bis(dimethylamino)methyl]-1H-benzotriazolium-3-oxide hexafluorophosphate (HBTU) and the like.
- DCC dicyclohexylcarbodiimide
- DIPCDI diisopropylcarbodiimide
- EDC or WSC 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide
- BOP 1-[bis(dimethylamino)methyl]-1H-benzotriazolium-3-oxide
- Cyclization of peptides can be performed according to known methods.
- a peptide can be designed to contain two or more cysteine residues so that it can form a cyclic structure through disulfide bonds after being translated.
- a peptide having a chloroacetyl group at the N-terminus was synthesized by genetic code reprogramming technology, Cyclization can also be achieved by placing a cysteine residue containing a sulfur molecule in the peptide.
- cyclization may be achieved by placing an L-2-amino adipic acid residue in the peptide and coupling between the N-terminal backbone amino groups.
- any known cyclization method can be used without particular limitation.
- the present invention relates to composites.
- This complex is a complex comprising any of the peptides described above, a linker bound to the peptide, and a substance bound to the linker. Since the peptide can bind to TGF- ⁇ , the complex can deliver the substance to TGF- ⁇ .
- PDC peptide drug conjugate
- the substance can be any substance desired by one of skill in the art, so long as it is desired to deliver it to TGF- ⁇ .
- examples of said substances include, but are not limited to: Compounds: including low-molecular-weight compounds and middle-molecular-weight compounds, such as known low-molecular-weight drugs.
- Peptide It may be a peptide that binds to a target in the body and exhibits some effect, for example, it may be a cyclic peptide different from the peptide of the present invention.
- RI Any compound that can be labeled with a radioisotope, such as a low-molecular-weight compound, a middle-molecular-weight compound, or an antibody labeled with a radioisotope. Examples include compounds for PET examination.
- Protein Any protein that exhibits useful functions in the body, such as antibodies and enzymes. Examples include enzymes used in enzyme replacement therapy.
- Nucleic acid Anything that contains a base sequence, such as DNA and RNA. Examples include nucleic acid medicines.
- DDS drug delivery systems
- the substances listed above may be complexes in which a plurality of substances are bound.
- the multiple-binding substances may be of the same type or of different types.
- PDC peptide drug conjugate
- compositions comprising the peptides of the present invention.
- peptide can also include the complex of "5. Complex”.
- the composition is, without limitation, a medical composition, a diagnostic composition, or a research composition.
- compositions may contain the peptide itself, but may also contain a pharmaceutically acceptable salt or solvate of the peptide.
- peptide may include a pharmaceutically acceptable salt or solvate thereof, unless otherwise specified.
- the pharmaceutical composition preferably contains an effective amount of the peptide as an active ingredient.
- Diseases targeted by the "pharmaceutical composition” include both diseases for which the above-mentioned peptides themselves are effective and diseases for which drugs that modify the peptides are effective.
- Diseases targeted by the pharmaceutical composition include, but are not limited to, diseases associated with the TGF- ⁇ signaling pathway, such as tumors, cancers, and cell proliferation such as abnormal fibrosis of cells.
- diseases associated with It is also useful as an active ingredient of pharmaceutical compositions for treatment of renal dysfunction including glomerulosclerosis, liver cirrhosis, myocardial infarction and the like.
- diseases for which drugs that modify peptides are effective may be targeted.
- the dosage form of the pharmaceutical composition is not particularly limited, and may be oral administration or parenteral administration.
- Parenteral administration includes, for example, injection administration such as intramuscular injection, intravenous injection, and subcutaneous injection, transdermal administration, and transmucosal administration (nasal, oral, ocular, pulmonary, vaginal, and rectal) administration. etc. are raised.
- the pharmaceutical composition can be modified in various ways in view of the properties of the polypeptide that are easily metabolized and excreted.
- polyethylene glycol (PEG) or sugar chains can be added to polypeptides to prolong blood residence time and reduce antigenicity.
- biodegradable polymer compounds such as polylactic acid glycol (PLGA), porous hydroxyapatite, liposomes, surface-modified liposomes, emulsions prepared with unsaturated fatty acids, nanoparticles, nanospheres, etc. are used as sustained-release bases. , which may be used to encapsulate the polypeptide.
- a weak electric current can be applied to the skin surface to permeate the stratum corneum (iontophoresis method).
- the pharmaceutical composition may use the active ingredient as it is, or may be formulated by adding pharmaceutically acceptable carriers, excipients, additives, and the like.
- Dosage forms include liquids (e.g., injections), dispersions, suspensions, tablets, pills, powders, suppositories, powders, fine granules, granules, capsules, syrups, troches, Examples include inhalants, ointments, eye drops, nose drops, ear drops, poultices, and the like.
- excipients for example, excipients, binders, disintegrants, lubricants, solubilizers, solubilizers, colorants, flavoring agents, stabilizers, emulsifiers, absorption enhancers, surfactants, pH adjustment Agents, preservatives, antioxidants and the like can be used as appropriate and can be carried out in a conventional manner.
- ingredients used for formulation include purified water, saline, phosphate buffer, dextrose, glycerol, pharmaceutically acceptable organic solvents such as ethanol, animal and vegetable oils, lactose, mannitol, glucose, sorbitol, and crystalline cellulose. , hydroxypropylcellulose, starch, cornstarch, anhydrous silicic acid, magnesium aluminum silicate, collagen, polyvinyl alcohol, polyvinylpyrrolidone, carboxyvinyl polymer, sodium carboxymethylcellulose, sodium polyacrylate, sodium alginate, water-soluble dextran, sodium carboxymethylstarch.
- pectin methyl cellulose, ethyl cellulose, xanthan gum, gum arabic, tragacanth, casein, agar, polyethylene glycol, diglycerin, glycerin, propylene glycol, petrolatum, paraffin, octyldodecyl myristate, isopropyl myristate, higher alcohol, stearyl alcohol, stearin Examples include, but are not limited to, acid, human serum albumin, and the like.
- the pharmaceutical composition can contain an absorption enhancer that improves the absorption of poorly absorbable drugs.
- absorption enhancers include surfactants such as polyoxyethylene lauryl ethers, sodium lauryl sulfate, and saponin; bile salts such as glycocholic acid, deoxycholic acid and taurocholic acid; chelating agents such as EDTA and salicylic acids; Fatty acids such as caproic acid, capric acid, lauric acid, oleic acid, linoleic acid, mixed micelles; enamine derivatives, N-acyl collagen peptides, N-acyl amino acids, cyclodextrins, chitosans, nitric oxide donors, etc. can be used.
- the pharmaceutical composition when it is a pill or tablet, it may be coated with a sugar-coating, gastric-soluble, or enteric-coating substance.
- the pharmaceutical composition when it is an injection, it may contain distilled water for injection, physiological saline, propylene glycol, polyethylene glycol, vegetable oil, alcohols, and the like.
- wetting agents, emulsifiers, dispersants, stabilizers, solubilizers, solubilizers, preservatives and the like may be added.
- the pharmaceutical composition may be intended not only for humans but also for non-human mammals or birds.
- non-human mammals include non-human primates (monkeys, chimpanzees, gorillas, etc.), livestock animals (pigs, cows, horses, sheep, etc.), dogs, cats, rats, mice, guinea pigs, rabbits, etc. included.
- the dosage when administered to humans varies depending on symptoms, patient age, sex, weight, sensitivity difference, administration method, administration interval, type of active ingredient, type of preparation, and is not limited, for example, 30 ⁇ g ⁇ 100 g, 100 ⁇ g to 500 mg, 100 ⁇ g to 100 mg can be administered once or divided into several doses.
- 1 ⁇ g/kg to 3000 ⁇ g/kg or 3 ⁇ g/kg to 1000 ⁇ g/kg may be administered once or in several doses depending on the body weight of the patient.
- the present invention relates to methods for preventing or treating diseases by administering the peptides of the present invention.
- the present invention relates to the use of the peptide of the present invention for prevention or treatment of diseases.
- the present invention relates to the use of the peptides of the present invention for manufacturing pharmaceutical compositions for the prevention or treatment of diseases.
- the present invention relates to peptides of the present invention for use in methods of preventing or treating diseases.
- the present invention also relates to diagnostic compositions comprising the peptides of the invention.
- the peptide preferably has TGF- ⁇ binding activity, more preferably TGF- ⁇ 1 binding activity. “Having TGF- ⁇ 1 binding activity” is as described in detail in “3. Peptide (B)”. Since the peptide of the present invention binds to TGF- ⁇ , it can also be used as a diagnostic agent for detecting TGF- ⁇ .
- the diagnostic agent may be an agent for detecting the amount of TGF- ⁇ , and when used as a detecting agent, the peptide of the present invention may be detectably labeled. When labeled with a labeling substance, the peptide forms a complex with TGF- ⁇ , enabling detection or quantification of TGF- ⁇ via the labeling substance.
- the type of labeling substance is not particularly limited.
- Non-limiting examples include fluorescein isothiocyanate, rhodamine, dansyl chloride, phycoerythrin, tetramethylrhodamine isothiocyanate, fluorescent substances such as near-infrared fluorescent materials, chemiluminescent dyes, radioactive substances (e.g., 125I, 131I, 35S, 3H, etc.) or radioisotope metal ion chelate complexes, such as DOTA or desferrioxamine chelate complexes), and fluorescent proteins such as biotin and GFP (green fluorescent protein), photoproteins, peroxidase, alkaline phosphatase including enzymes such as Examples of preferred labeling substances are fluorescein and fluorescein derivatives such as FITC, rhodamine derivatives such as rhodamine and tetramethylrhodamine, and fluorescent dyes such as Texas Red.
- a disease that can be diagnosed with a diagnostic composition is not particularly limited. Examples thereof include diseases associated with the TGF- ⁇ signaling pathway, including diseases associated with cell proliferation such as tumors, cancers, and abnormal cell fibrosis. It is also useful as a diagnostic composition for renal insufficiency including glomerulosclerosis, liver cirrhosis, myocardial infarction and the like.
- the present invention relates to methods for diagnosing diseases by using the peptides of the present invention.
- Method of diagnosing includes in vivo or in vitro diagnostic methods. Preferably, it is an in vitro diagnostic method.
- the present invention also relates to methods of detecting diseases by using the peptides of the present invention. Disease detection can also be performed by, for example, laboratory technicians, researchers, etc. other than doctors at research institutions (including educational institutions such as universities), companies, and the like. In one aspect, the method of detecting disease does not involve medical intervention.
- the present invention relates to the use of the peptides of the present invention for diagnosing or detecting diseases.
- the present invention relates to the use of the peptide of the present invention for producing a composition for diagnosing or detecting diseases.
- the present invention relates to peptides of the present invention for use in methods of diagnosing or detecting diseases.
- compositions for research include those used by researchers, engineers, students, doctors, etc. in research institutions (including educational institutions such as universities), companies, hospitals, and the like.
- composition for research can be used, for example, for purification or detection of TGF- ⁇ and detection of disease.
- the peptide of the present invention since the peptide of the present invention has TGF- ⁇ antagonist activity, it can be used as an additive to media for culturing cells and organs. It can also be used as an additive to protective solutions to protect organs for transplantation. Without limitation, it may be a medium for culturing organs such as liver and brainstem or fragments thereof, or a medium for culturing totipotent cells such as stem cells. Furthermore, it is also possible to use, for example, cell culture for cell therapy in regenerative medicine. "Research compositions" of the present invention include compositions used in such culture media.
- compositions for research of the present invention excludes compositions used as additives to media for culturing organoids.
- An “organoid” is an in vitro culture that is derived from human stem cells, cultured three-dimensionally due to its self-aggregation, self-renewal and differentiation abilities, and formed by self-organization. "Organoids” are also thought of as "miniature versions of organs.”
- the peptide Since the peptide has binding activity (affinity), particularly high binding activity, to TGF- ⁇ , particularly TGF- ⁇ 1, it is possible to selectively separate TGF- ⁇ from human serum, for example. Said peptides can therefore be used in a method for the purification of TGF- ⁇ . Methods for purifying TGF- ⁇ include, for example, binding the peptide or the immobilized peptide to TGF- ⁇ , releasing the bound TGF- ⁇ and recovering TGF- ⁇ . Additionally, the peptides may be used in methods for detecting TGF- ⁇ . A method for detecting TGF- ⁇ includes, for example, allowing TGF- ⁇ in a sample to bind to the peptide or the immobilized peptide, and detecting the bound TGF- ⁇ . Here, detection shall include either qualitative or quantitative analysis.
- the carrier for immobilizing the peptide is not particularly limited, and examples thereof include microtiter plates made of lath, metal, resin, etc., substrates, beads, nitrocellulose membranes, nylon membranes, PVDF membranes, and the like. be done.
- the present invention includes methods for purifying or detecting TGF- ⁇ using the peptides of the present invention.
- the present invention also includes the use of the peptides of the present invention for purifying or detecting TGF- ⁇ .
- the present invention relates to a diagnostic or detection kit containing the peptide of the present invention.
- the diagnostic or detection kit includes reagents and instruments necessary for the detection (without limitation, any of the peptides of the present invention, antibodies, solid phase carriers, buffer solutions, enzyme reaction stop solutions, microplate readers, etc. or including all).
- the present invention relates to a diagnostic or detection tester containing the peptide of the present invention.
- the elongation of the peptide chain on the solid-phase resin was carried out using the resins described in each example as starting materials, and using the commonly used peptide coupling reaction conditions and Fmoc removal reaction conditions.
- the reaction was carried out using an automatic peptide synthesizer, Liberty Blue from CEM, or Siro I from Biotage, according to the manufacturer's manual.
- Fmoc-Trp(Boc)-OH Fmoc-Gly-OH; Fmoc-Asp(OMpe)-OH; Fmoc-Phe-OH; Fmoc-His(Boc)-OH; Fmoc-Tyr(tBu)-OH; Fmoc-Val-OH; Fmoc-Cys(Trt)-OH; Fmoc-Asn(Trt)-OH.
- TGFb1_001 SEQ ID NO:2
- TGFb1_001 SEQ ID NO:2 having the following structure was synthesized.
- the target peptide was synthesized starting from removal of the Fmoc group by the general chemical synthesis method described above.
- CEM's Liberty Blue HT was used as a solid-phase synthesizer, and synthesis was carried out according to the manufacturer's manual.
- Fmoc-AA/DIPCI/Oxyma pure (5.25 equivalents/10 equivalents/5 equivalents) was used with respect to 1 equivalent of the resin, and the reaction was carried out once in DMF at 90°C for 3 minutes. . However, the 9th residue was reacted twice at 90°C for 10 minutes. The 14th and 16th residues were reacted once at 50°C for 15 minutes.
- the basic condition for removing Fmoc was to react with a 20% piperidine DMF solution at 75°C for 3 minutes.
- Fmoc removal of 1st, 2nd, 3rd, 4th, 5th, 6th, 7th, and 8th residues is 20% of piperidine.
- the reaction was carried out twice with a DMF solution at 25°C for 5 minutes.
- chloroacetyl group is performed by removing the Fmoc group of the ⁇ -amino group of the solid-phase resin holding the Fmoc-protected peptide obtained in the previous step by the method described above, followed by addition of 0.2M chloroacetic acid (approximately 5 equivalents) DMF solution, 0.5 M HATU (about 5 equivalents) DMF solution, and 1 M DIEA (about 10 equivalents) DMF solution were added to the solid-phase resin and shaken at room temperature for 30 minutes.
- 0.2M chloroacetic acid approximately 5 equivalents
- 0.5 M HATU about 5 equivalents
- DIEA about 10 equivalents
- Deprotection of the side chain and cleavage from the solid-phase resin are performed by first washing the resin obtained after the chloroacetyl group-introducing step with DMF five times and methylene chloride three times, drying under reduced pressure, and then solid-phase resin.
- Reagent cocktail-A (5 mL, a mixture of TFA/H 2 O/TIS/DODT at a volume ratio of 92.5:2.5:2.5:2.5) was added to the reaction vessel containing Shake for 60 minutes.
- the reaction solution was collected by filtration through a frit.
- the solid-phase resin remaining in the reaction vessel was shaken again with the cutting cocktail, and the solution component was recovered from the frit and mixed with the above filtrate.
- the filtrate was added to excess diisopropyl ether/hexane (1/1) mixed solvent cooled to 0° C., precipitation occurred.
- the mixture was centrifuged (9000 rpm, 1 min) and the solution decanted.
- the obtained solid was washed with 15 mL of diethyl ether cooled to 0° C. again three times, and then dried under reduced pressure. The resulting solid was used for the next cyclization reaction.
- the peptide was dissolved in DMSO so that the final concentration was 5 mM based on the number of moles of the solid phase resin, then 10 equivalents of triethylamine was added and shaken at room temperature for about 5 hours.
- the resulting reaction solution was concentrated under reduced pressure using Genevac EZ-2 (less than 40° C., reduced pressure time: 14 hours).
- the obtained crude product was purified using the following conditions.
- the purity of the target product was calculated from the area ratio of the LC/MS (UV wavelength 225 nm) chromatogram under the analysis conditions and was 96.0%.
- TGFb1_012 SEQ ID NO: 13
- TGFb1_012 SEQ ID NO: 13
- the target peptide was synthesized starting from the removal of the Fmoc group by the general chemical synthesis method described above. At that time, Biotage's Siro I was used as a solid-phase synthesizer, and synthesis was carried out according to the manufacturer's manual.
- Fmoc-AA/HATU/DIPEA (4.2 equivalents/4 equivalents/8 equivalents) was used with respect to 1 equivalent of the resin, and reactions were performed twice in DMF at 75°C for 20 minutes. However, the 11th, 12th and 13th residues were reacted once at 75°C for 20 minutes. The 14th residue was reacted once at room temperature for 60 minutes. The 15th residue was reacted once at 75°C for 20 minutes. The 17th residue was reacted once at 75°C for 10 minutes. The 16th residue was reacted once at room temperature for 20 minutes.
- the basic condition for removing Fmoc was to react with a 20% piperidine DMF solution at room temperature for 5 minutes and 15 minutes.
- chloroacetyl group is performed by removing the Fmoc group of the ⁇ -amino group of the solid-phase resin holding the Fmoc-protected peptide obtained in the previous step by the method described above, followed by addition of 0.2M chloroacetic acid (approximately 5 equivalents) DMF solution, 0.2 M DIPCI (about 5 equivalents) DMF solution, and 0.2 M HOSu (about 5 equivalents) DMF solution were added to the solid-phase resin and shaken at room temperature for 90 minutes.
- Deprotection of the side chain and cleavage from the solid-phase resin are performed by first washing the resin obtained after the chloroacetyl group-introducing step with DMF five times and methylene chloride three times, drying under reduced pressure, and then solid-phase resin.
- Reagent cocktail-A (3 mL, a mixture of TFA/H 2 O/TIS/DODT at a volume ratio of 92.5:2.5:2.5:2.5) was added to the reaction vessel containing Shake for 60 minutes.
- the reaction solution was collected by filtration through a frit.
- the solid-phase resin remaining in the reaction vessel was shaken again with the cutting cocktail, and the solution component was recovered from the frit and mixed with the above filtrate.
- Addition of the filtrate to excess diisopropyl ether solvent chilled to 0° C. resulted in precipitation.
- the mixture was centrifuged (9000 rpm, 3 minutes) and the solution decanted.
- the obtained solid was washed with 10 mL of diethyl ether cooled to 0° C. again three times, and then dried under reduced pressure. The resulting solid was used for the next cyclization reaction.
- the peptide cyclization reaction was carried out by dissolving the peptide in a mixed solution of DMSO/water (9/1) so that the final concentration of the peptide was 2.5 mM based on the number of moles of the solid-phase resin, and then adding 10 equivalents of triethylamine. Shake at room temperature for about 18.5 hours. After adding 20 equivalents of acetic acid to the reaction solution, the resulting reaction solution was concentrated under reduced pressure using Genevac EZ-2 (less than 40° C., reduced pressure time: 16 hours).
- the obtained crude product was purified using the following conditions.
- the purity of the target product was calculated from the area ratio of the LC/MS (UV wavelength 225 nm) chromatogram under the analysis conditions and was 90.5%.
- TGFb1_031 SEQ ID NO:32
- TGFb1_031 SEQ ID NO:32
- the target peptide was synthesized starting from removal of the Fmoc group by the general chemical synthesis method described above.
- CEM's Liberty Blue HT was used as a solid-phase synthesizer, and synthesis was carried out according to the manufacturer's manual.
- Fmoc-AA/DIPCI/Oxyma pure (4.2 equivalents/8 equivalents/4 equivalents) was used with respect to 1 equivalent of resin, and the reaction was carried out once in DMF at 90°C for 3 minutes.
- the 3rd, 4th, 6th, 7th, 11th and 15th residues were reacted once at 75°C for 20 minutes.
- the 9th residue was reacted twice at 90°C for 3 minutes.
- the 10th residue was reacted twice at 75°C for 20 minutes.
- the 14th residue was reacted once at 50°C for 15 minutes.
- the basic condition for removing Fmoc was to react with a 20% piperidine DMF solution at 75°C for 3 minutes.
- 1st residue, 2nd residue, 3rd residue, 4th residue, 5th residue, 6th residue, 7th residue, 8th residue, 11th residue, 12th residue Fmoc removal of residues 1, 13, 15, 17 and 18 was carried out twice with a 20% piperidine solution in DMF at 25°C for 5 minutes.
- the chloroacetyl group is introduced into the solid-phase resin holding the Fmoc-protected peptide obtained in the previous step by removing the Fmoc group of the ⁇ -amino group by the method described above, followed by addition of 0.1 M chloroacetic acid (approximately 5 equivalents) DMF solution, 0.1 M HATU (about 5 equivalents) DMF solution, and 0.2 M DIEA (about 10 equivalents) DMF solution were added to the solid-phase resin and shaken at room temperature for 30 minutes.
- 0.1 M chloroacetic acid approximately 5 equivalents
- 0.1 M HATU about 5 equivalents
- DIEA about 10 equivalents
- Deprotection of the side chain and cleavage from the solid-phase resin are performed by first washing the resin obtained after the chloroacetyl group-introducing step with DMF five times and methylene chloride three times, drying under reduced pressure, and then solid-phase resin.
- Reagent cocktail-A (5 mL, a mixture of TFA/H 2 O/TIS/DODT at a volume ratio of 92.5:2.5:2.5:2.5) was added to the reaction vessel containing Shake for 60 minutes.
- the reaction solution was collected by filtration through a frit.
- the solid-phase resin remaining in the reaction vessel was shaken again with the cutting cocktail, and the solution component was recovered from the frit and mixed with the above filtrate.
- the filtrate was added to excess diisopropyl ether/hexane (1/1) mixed solvent cooled to 0° C., precipitation occurred.
- the mixture was centrifuged (9000 rpm, 2 minutes) and the solution decanted.
- the obtained solid was washed with 15 mL of diethyl ether cooled to 0° C. again three times, and then dried under reduced pressure. The resulting solid was used for the next cyclization reaction.
- the obtained crude product was purified using the following conditions.
- the purity of the target product was calculated from the area ratio of the LC/MS (UV wavelength 225 nm) chromatogram under the analysis conditions and was 99.2%.
- the peptide obtained here is referred to as peptide A.
- the obtained crude product was purified using the following conditions.
- the purity of the target product was calculated from the area ratio of the LC/MS (UV wavelength 225 nm) chromatogram under the analysis conditions and was 98.2%.
- TGFb1_032 (SEQ ID NO:33)
- TGFb1_032 (SEQ ID NO:33) having the following structure was synthesized.
- the obtained crude product was purified using the following conditions.
- the purity of the target product was calculated from the area ratio of the LC/MS (UV wavelength 225 nm) chromatogram under the analysis conditions and was 99.3%.
- TGFb1_024 (SEQ ID NO:25)
- TGFb1_024 (SEQ ID NO:25) having the following structure was synthesized.
- the target peptide was synthesized starting from the removal of the Fmoc group by the general chemical synthesis method described above. At that time, Biotage's Siro I was used as a solid-phase synthesizer, and synthesis was carried out according to the manufacturer's manual.
- Fmoc-AA/HATU/DIPEA (4.2 equivalents/4 equivalents/8 equivalents) was used with respect to 1 equivalent of the resin, and reactions were performed twice in DMF at 75°C for 20 minutes. However, the 4th and 9th residues were reacted twice at 75°C for 30 minutes. The 14th residue was reacted twice at room temperature for 30 minutes. The 15th residue was reacted once at 75°C for 20 minutes. The 16th residue was reacted once at room temperature for 20 minutes. The 17th residue was reacted once at 75°C for 10 minutes.
- the basic condition for removing Fmoc was to react with a 20% piperidine DMF solution at room temperature for 5 minutes and 15 minutes.
- the peptide cyclization reaction was carried out by dissolving the peptide in a mixed solution of acetonitrile/water (1/1) so that the final concentration of the peptide was 2.5 mM based on the number of moles of the solid-phase resin, and then adding 10 equivalents of triethylamine. Shake at room temperature for about 3 hours. After adding 20 equivalents of acetic acid to the reaction solution, the resulting reaction solution was concentrated under reduced pressure using Genevac EZ-2 (less than 40° C., reduced pressure time: 16 hours).
- the obtained crude product was purified using the following conditions.
- the purity of the target product was calculated from the area ratio of the LC/MS (UV wavelength 225 nm) chromatogram under the analysis conditions and was 79.9%.
- HA tag resin (0.65 mmol/g, 0.004 mg, 2.5 ⁇ mol scale)
- the target peptide was synthesized.
- Biotage's Siro II was used as a solid-phase synthesizer, and synthesis was carried out according to the manufacturer's manual.
- the chloroacetyl group is introduced by removing the Fmoc group of the ⁇ -amino group of the solid-phase resin holding the Fmoc-protected peptide obtained in the previous step by the method described above, followed by addition of 0.3 M chloroacetic acid.
- a DMF solution (4.2 equivalents), a 0.28 M HATU DMF solution (3.9 equivalents), and a 1.05 M DIPEA DMF solution (8.4 equivalents) were added to the solid-phase resin and shaken at room temperature for 30 minutes. It was done by repeating twice.
- the resin obtained after the step of introducing the chloroacetyl group was washed five times with DMF and three times with methylene chloride, and then dried under reduced pressure. Subsequently, reactant cocktail-A (a mixture of TFA/H2O/TIS/DODT at a volume ratio of 92.5:2.5:2.5:2.5) was added to the reaction vessel containing the solid-phase resin, and for 60 minutes.
- reactant cocktail-A a mixture of TFA/H2O/TIS/DODT at a volume ratio of 92.5:2.5:2.5:2.5
- the reaction solution was collected by filtration through a frit.
- the solid-phase resin remaining in the reaction vessel was shaken again with the cutting cocktail, and the solution component was recovered from the frit and mixed with the above filtrate.
- the filtrate was added to diisopropyl ether (1.5 mL) chilled to 0° C. resulting in precipitation.
- the mixture was centrifuged (8500 rpm, 30 seconds) and the solution was decanted.
- the resulting solid was washed twice with diethyl ether/hexane (1:1, 1 mL) cooled to 0° C. again and dried under reduced pressure. The resulting solid was used for the next cyclization reaction.
- the cyclization reaction of the peptide was performed after dissolving in isopropyl alcohol/water/DMSO (1:1:18) so that the final concentration of the peptide was 25 mM (2.5 ⁇ mol/0.1 mL) based on the number of moles of the solid-phase resin. , 20 equivalents of triethylamine was added and shaken at room temperature for 63 hours. 40 equivalents of acetic acid were added to the resulting reaction solution.
- the obtained reaction solution was subjected to solid-phase extraction using a Gilson column (column: Gilson ASPEC C18 500 mg 3 mL).
- the purity of one of the main peaks of the target product was 21.8% calculated from the area ratio of the LC/MS (UV wavelength 220 nm) chromatogram under the following analysis conditions.
- SEQ ID NOs: 2, 4-13, and 15-33 have a glycine (G) linker added to the C-terminus of a cyclic peptide whose amino acid sequence has a cyclic structure.
- SEQ ID NO: 32 further has K (MePEG8c) added to the end of the G linker, and SEQ ID NO: 33 further has K (OCOmPEG 10000) added to the end of the G linker.
- SEQ ID NO: 3 has the same amino acid sequence as SEQ ID NO: 2, but does not have a C-terminal glycine (G) linker.
- SEQ ID NO: 14 has the same amino acid sequence as SEQ ID NO: 13, but does not have a C-terminal glycine (G) linker.
- a peptide consisting of the amino acid sequences of SEQ ID NOS: 34-69 also has G linked as a linker to the C-terminus of the cyclic peptide having a cyclized structure.
- the HA-tag is bound to the G end of the C-terminal linker of the peptide consisting of the amino acid sequences of SEQ ID NOs: 34-69. This is an amino acid sequence necessary for evaluating the binding of the TGF- ⁇ inhibitory peptide to TGF- ⁇ 1 by ELISA, and does not affect the activity.
- the synthesized peptide was analyzed under the analysis conditions described in Example 1-6, and the structure was confirmed by ESI-MS (+) in mass spectrometry. Tables 1 and 4 show the obtained ESI-MS (+) observed values and the valences in those cases.
- Example 8 Intermolecular interaction evaluation test between TGF- ⁇ and peptide by surface plasmon resonance (SPR)
- SPR surface plasmon resonance
- TGF- ⁇ is human-derived TGF- ⁇ 1 or ⁇ 2 (recombinant human TGF- ⁇ 1, 2) and was obtained from R&D Systems. After immobilization, 1.0 M ethanolamine aqueous solution (Global Life Science Technologies Japan Co., Ltd.) was allowed to react for 420 seconds at a flow rate of 10 ⁇ L/min for capping.
- a peptide solution prepared to 10 mM in DMSO solution was diluted with running buffer to a final concentration of 10 ⁇ M peptide solution, and then 50 nM, 25 nM, 12.5 nM, 5 nM and 2.5 nM peptide solutions were prepared. was made. Using the samples described above, the kinetics of peptides against TGF- ⁇ was obtained by SPR measurements.
- the kinetics evaluation model was Single Cycle Kinetics, and curve fitting was performed using Biacore T200 Evaluation Software Version 3.0 (Global Life Science Technologies Japan Co., Ltd.). The resulting sensorgrams were subjected to curve fitting by the method of least squares, and the KD values were obtained to evaluate the binding of various peptides to TGF- ⁇ .
- Tables 2 and 3 show the KD values of peptides consisting of the amino acid sequences of SEQ ID NOs: 2-33. As shown in Tables 2 and 3, the peptides of SEQ ID NOS:2-33 were shown to have binding ability to TGF- ⁇ 1.
- the peptides of SEQ ID NO: 3 and SEQ ID NO: 14 have the same amino sequence forming a cyclic peptide structure as SEQ ID NO: 2 and SEQ ID NO: 13, respectively, and differ only in the presence or absence of glycine addition at the linker site.
- the peptide of SEQ ID NO: 3 has a KD of 0.46 nM
- the peptide of SEQ ID NO: 14 has a KD of 0.82 nM. It was almost the same as the KD of. This suggests that the peptide of the present invention can bind to TGF- ⁇ 1 even if a linker is added.
- TGF- ⁇ 1, ⁇ 2 isoforms of TGF- ⁇
- SBE reporter-HEK293 cells were cultured in E-MEM (Wako) containing 10% FBS (Sigma). After detaching the cells using Accutase (Innovative Cell Technologies), they were suspended in E-MEM containing 0.5% FBS and seeded in a 96-well plate at 45,000 cells per well overnight. cultured. The next day, peptides were added and left to stand for 20 minutes, then recombinant human TGF- ⁇ 1 (R&D systems) and recombinant human TGF- ⁇ 2 (R&D systems) were added to 0.13 nM and cultured for 18 hours.
- ONE-Glo luciferase assay reagent was added to each well and shaken for 5 minutes.
- a SpectraMax Paradigm multimode microplate reader (Molecular Devices) was used for signal detection. The obtained signals were analyzed with GraphPad Prism, and the inhibitory activity of the peptide was calculated with the maximum value of the signal induced by TGF- ⁇ as 0% inhibition and no stimulation as 100% inhibition.
- Tables 2 and 3 show the TGF- ⁇ 1 inhibitory activity evaluation results of the peptides composed of the amino acid sequences of SEQ ID NOs: 2-33 synthesized in Examples 1-5 and 7. As shown in Tables 2 and 3, various synthesized peptides were shown to have TGF- ⁇ 1 antagonist activity. As described above, the peptides of SEQ ID NO: 3 and SEQ ID NO: 14 have the same amino sequence forming a cyclic peptide structure as SEQ ID NO: 2 and SEQ ID NO: 13, respectively, and the only difference is the presence or absence of glycine at the linker site. Since the binding activity is the same as in 8, the results for the SBE reporter are omitted.
- FIG. 1 shows the results of selectivity evaluation for TGF- ⁇ isoforms (TGF- ⁇ 1, ⁇ 2).
- TGF- ⁇ 1, ⁇ 2 TGF- ⁇ isoforms
- the peptide consisting of the amino acid sequence of SEQ ID NO: 13 synthesized in Example 2 exhibited inhibitory activity against TGF- ⁇ 1 and TGF- ⁇ 2. This indicates that the peptide consisting of the amino acid sequence of SEQ ID NO: 13 of the present invention inhibits not only TGF- ⁇ 1 but also TGF- ⁇ 2.
- HA-tag was bound to the end of G of the C-terminal linker of the peptide consisting of the amino acid sequences of SEQ ID NOs: 34-69.
- HA-tag refers to the amino acid sequence of PEG10c-YPYDVPDYYA (SEQ ID NO: 70). This is the amino acid sequence necessary for evaluating the binding of TGF- ⁇ inhibitory peptides to TGF- ⁇ 1 by ELISA. It does not affect the binding activity with TGF- ⁇ 1.
- the binding activity between the peptide and TGF- ⁇ 1 was examined by ELISA using the HA-tag-bound peptide consisting of the amino acid sequences of SEQ ID NOs: 34-69 and TGF- ⁇ 1 beads.
- TGF- ⁇ 1 beads Preparation of TGF- ⁇ 1 beads> Recombinant human TGF- ⁇ 1 (R&D Systems) was immobilized on Dynabead M-270 Carboxylic Acid (Thermo fisher scientific) to produce TGF- ⁇ 1 beads. An Amine Coupling kit (Dojindo Laboratories) was used for the immobilization reaction.
- TGF- ⁇ 1 beads and a peptide having an HA tag sequence attached to its C-terminus were reacted in PBS containing 0.1% Tween 20 (Nacalai Tesque) (PBS-T) for 1 hour and then washed with PBS-T.
- PBS-T PBS containing 0.1% Tween 20
- PBS-T Anti-HA-tag mAb-HRP-DirectT
- TGF- ⁇ 1 beads described above were reacted in PBS-T containing 1% BSA for 30 minutes.
- the binding activity is shown as a relative value when the binding ability of the peptide of TGFb1_061 (SEQ ID NO: 62) to TGF- ⁇ 1 is taken as 100%.
- Table 4 shows the results. As shown in Table 4, the peptides consisting of the amino acid sequences of SEQ ID NOS:34-69 were shown to have the ability to bind to TGF- ⁇ 1.
- the m/z of SEQ ID NOs: 32 and 33 in Table 1 are the values before the addition of the MePEG8c and OCOmPEG10000 structures among the linkers K (MePEG8c) and K (OCOmPEG10000), respectively.
- the concentration (nM) under the SBE reporter column in Tables 2 and 3 describes the concentration of the peptide used for actual measurement.
- TGF- ⁇ -binding activity in Table 4 is shown as a relative value when the TGF- ⁇ 1-binding ability of the peptide of TGFb1 — 061 (SEQ ID NO: 62) is taken as 100%.
- REFERENCE EXAMPLES Synthesis of Novel Unnatural Amino Acids This reference example demonstrates the synthesis of unnatural amino acids contained in the peptides of the present invention.
- the resulting product (8.70 g, 13.82 mmol) was dissolved in dichloromethane (100 mL), imidazole (2.35 g, 34.5 mmol) and triisopropylchlorosilane (3.33 g, 17.27 mmol) were added under ice cooling. The mixture was added and stirred at room temperature for 5 days. The reaction was diluted with ethyl acetate and washed with water three times. The extract layer was dried over sodium sulfate, filtered, and the filtrate was concentrated under reduced pressure.
- the peptide according to the present invention has binding activity to TGF- ⁇ , and preferably has TGF- ⁇ antagonist activity. It can be used as a pharmaceutical composition for cancer, liver disease, etc., a diagnostic composition, a research composition, and the like.
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Abstract
Description
[1]
以下のアミノ酸配列:
F-Nal1-V-V-N-V-Y-D-D-PeG-V-Nal1-Y-H-V-C-G(配列番号2);
あるいは、
上記のアミノ酸配列の2番目、4番目、7番目、8番目、9番目、10番目、12番目、13番目、14番目、15番目及び17番目のアミノ酸残基からなるグループから選択される、1-11個のアミノ酸残基において、置換、付加、欠失又は挿入を有するアミノ酸配列
を含む、ペプチド。
[2]
以下のアミノ酸配列:
F-X1-V-X2-N-V-X3-X4-X5-X6-V-X7-X8-X9-X10-C(配列番号1)
ここにおいて、
X1は、側鎖に置換されていてもよい芳香族環を有するアミノ酸であり;
X2は、任意のアミノ酸であり;
X3は、任意のアミノ酸であり;
X4は、任意のアミノ酸であり;
X5は、任意のアミノ酸であり;
X6は、側鎖に置換されていてもよいアルキル基を有するアミノ酸、又は置換されていてもよいアルキル基を有する二級アミノ酸であり;
X7は、側鎖に置換されていてもよい芳香族環を有するアミノ酸であり;
X8は、側鎖に置換されていてもよい芳香族環を有するアミノ酸であり;
X9は、任意のアミノ酸であり;
X10は、任意のアミノ酸である、
を含む、ペプチド。
[3]
X1が、側鎖に置換されていてもよい縮合環を有するアミノ酸である、[2]に記載のペプチド。
[4]
X1が、Nal1、W6N、W7N又はWである、[2]に記載のペプチド。
[5]
X2が、V、K、KCOpipzaa、KCOmeglumine又はQである、[2]-[4]のいずれか1項に記載のペプチド。
[6]
X2が、V、K、KCOpipzaa、又はKCOmeglumineである、[2]-[4]のいずれか1項に記載のペプチド。
[7]
X3が、Y、4Py、A、E、F4G、Q,K、F3G、又は3Pyである、[2]-[6]のいずれか1項に記載のペプチド。
[8]
X3が、Y又は4Pyである、[2]-[6]のいずれか1項に記載のペプチド。
[9]
X4が、置換若しくは未置換の芳香族アミノ酸及び含硫アミノ酸、以外のアミノ酸である、[2]-[8]のいずれか1項に記載のペプチド。
[10]
X4が、D、A、Q、K又はEである、[2]-[8]のいずれか1項に記載のペプチド。
[11]
X5が、置換若しくは未置換の芳香族アミノ酸及び含硫アミノ酸、以外のアミノ酸である、[2]-[10]のいずれか1項に記載のペプチド。
[12]
X5が、D、E、KCOpipzaa、KCOmeglumine、A、Q、又はKである、[2]-[10]のいずれか1項に記載のペプチド。
[13]
X6が、PeG、K又はMeGである、[2]-[12]のいずれか1項に記載のペプチド。
[14]
X7が、側鎖に置換されていてもよい縮合環を有するアミノ酸である、[2]-[13]のいずれか1項に記載のペプチド。
[15]
X7が、Nal1、W6N、又はWである、[2]-[13]のいずれか1項に記載のペプチド。
[16]
X8が、Y、4Py、3Py又はEである、[2]-[15]のいずれか1項に記載のペプチド。
[17]
X8が、Y又は4Pyである、[2]-[15]のいずれか1項に記載のペプチド。
[18]
X9が、置換若しくは未置換の芳香族アミノ酸及び含硫アミノ酸、以外のアミノ酸である、[2]-[17]のいずれか1項に記載のペプチド。
[19]
X9が、H、A、Q又はEである、[2]-[17]のいずれか1項に記載のペプチド。
[20]
X10が、置換若しくは未置換の芳香族アミノ酸及び含硫アミノ酸、以外のアミノ酸である、[2]-[19]のいずれか1項に記載のペプチド。
[21]
X10が、V、E、KCOpipzaa、KCOmeglumine、Q、K,又はAである、[2]-[19]のいずれか1項に記載のペプチド。
[22]
配列番号2-33、あるいは、
配列番号2、4-13、15-33のうちC末端のグリシン(G)を有しないアミノ酸配列
のいずれかに1つのアミノ酸配列を含む、又は、からなる、[1]-[21]のいずれか1項に記載のペプチド。
[23]
前記ペプチドが、環状ペプチドである、[1]-[22]のいずれか1項に記載のペプチド。
[24]
クロロアセチル化したアミノ酸と、前記ペプチドに含まれるシステイン残基とが結合された環状構造を有する、[23]に記載の環状ペプチド。
[25]
さらに、付加的なアミノ酸残基を含む、[1]-[24]のいずれか1項に記載のペプチド。
[26]
そのC末端にリンカーを含む、[1]-[21]、[23]-[25]のいずれか1項に記載のペプチド。
[27]
TGF-β結合活性を有する、[1]-[26]いずれか1項に記載のペプチド。
[28]
TGF-βアンタゴニスト活性を有する、[1]-[27]いずれか1項に記載のペプチド。
[29]
[1]-[28]のいずれか1項に記載のペプチドを含む、医療用、診断用組成物。
[30]
[1]-[28]のいずれか1項に記載のペプチドを含む、研究用組成物であって、ただし、オルガノイドを培養するための培地への添加剤として使用される組成物は除く、前記研究用組成物。
本明細書において、特に明記しない限り、以下の略語は下記の意味で使用される。
Å:オングストローム(単位);
ClAc:クロロアセチル;
DCM:ジクロロメタン;
DMSO:ジメチルスルホキシド;
DMF:ジメチルホルムアミド;
DIEA又はDIPEA:N,N-ジイソプロピルエチルアミン;
DIPCI:N,N‘-ジイソプロピルカルボジイミド;
DODT:6-ジオキサ-1,8-オクタン-ジチオール;
Fmoc:9-フルオレニルメチルオキシカルボニル;
NHS:N-ヒドロキシコハク酸イミド;
g:グラム(単位);
HATU:O-(7-アザベンゾトリアゾール-1-イル)-N,N,N’,N’-テトラメチルウロニウムヘキサフルオロリン酸塩;
HOSu:N-ヒドロキシスクシンイミド;
HPLC:高速液体クロマトグラフィー;
LC-MSもしくはLC/MS:液体クロマトグラフィー質量分析計;
mL:ミリリットル(単位);
M:モーラー(単位);
μL:マイクロリットル(単位);
mM:ミリモーラー(単位);
μM:マイクロモーラー(単位);
mg:ミリグラム(単位);
MeCN:アセトニトリル;
mm:ミリメートル(単位);
μm:マイクロメートル(単位)
nM:ナノモーラー(単位);
OSu:スクシンイミド;
PEG:ポリエチレングリコール;
rpm:回転毎分(単位);
tBu:ターシャリーブチル;
Mpe:メチルペンタン-3-イル;
Boc:tert-ブトキシカルボニル;
TFA:トリフルオロ酢酸;
TIS:トリイソプロピルシラン;
Trt又はTr:トリチル基;
TIPS:トリイソプロピルシリル基。
Nal1:1-ナフチルーL-アラニン(CAS No.55516-54-6);
MePEG8c:2,5,8,11,14,17,20,23-オクタオキサヘキサコサン-26-オイック酸;
OCOmPEG10000:メトキシポリエチレングリコールカーボネート(平均分子量10,000)。
本発明は、ペプチドに関する。
F-Nal1-V-V-N-V-Y-D-D-PeG-V-Nal1-Y-H-V-C-G(配列番号2);
あるいは、
上記のアミノ酸配列の2番目、4番目、7番目、8番目、9番目、10番目、12番目、13番目、14番目、15番目及び17番目のアミノ酸残基からなるグループから選択される、1-11個のアミノ酸残基において、置換、付加、欠失又は挿入を有するアミノ酸配列
を含む、ペプチド。
塩基性アミノ酸:側鎖が塩基性を示すアミノ酸であって、Lys、Arg、Hisを含む。
例えば、Nal1、PeGは疎水性アミノ酸に、4Py、W7N、W6Nは親水性アミノ酸に分けることができ、さらに、4Py、W7N、W6Nは塩基性アミノ酸、4Py、Nal1、PeG、W6N、W7Nは芳香族アミノ酸に分けることもできる。なお、N-メチルアミノ酸については、N-アルキルアミノ酸として分類することもでき、N-メチル化されていない元のアミノ酸の側鎖の性質に従い分類することもできる。
本発明はペプチドに関する。
F-X1-V-X2-N-V-X3-X4-X5-X6-V-X7-X8-X9-X10-C(配列番号1)
ここにおいて、
X1は、側鎖に置換されていてもよい芳香族環を有するアミノ酸であり;
X2は、任意のアミノ酸であり;
X3は、任意のアミノ酸であり;
X4は、任意のアミノ酸であり;
X5は、任意のアミノ酸であり;
X6は、側鎖に置換されていてもよいアルキル基を有するアミノ酸、又は置換されていてもよいアルキル基を有する二級アミノ酸であり;
X7は、側鎖に置換されていてもよい芳香族環を有するアミノ酸であり;
X8は、側鎖に置換されていてもよい芳香族環を有するアミノ酸であり;
X9は、任意のアミノ酸であり;
X10は、任意のアミノ酸である、
を含む。
配列番号2-33、あるいは、
配列番号2、4-13、15-33のうちC末端のグリシン(G)を有しないアミノ酸配列
のいずれかに1つのアミノ酸配列を含む、又は、からなる。
配列番号2-33、あるいは、
配列番号2、4-13、15-33のうちC末端のグリシン(G)を有しないアミノ酸配列
のいずれかに1つのアミノ酸配列を含む、又は、からなる、環状ペプチドである。
本発明のペプチドは、例えば以下のような、ペプチド製造のための任意の公知の方法によって、製造することができる。
遺伝子組み換え法、等
固相法は、例えば、水酸基を有するレジンの水酸基と、α-アミノ基が保護基で保護された第一のアミノ酸(通常、目的とするペプチドのC末端アミノ酸)のカルボキシ基をエステル化反応させる。エステル化触媒としては、1-メシチレンスルホニル-3-ニトロ-1、2、4-トリアゾール(MSNT)、ジシクロヘキシルカルボジイミド(DCC)、ジイソプロピルカルボジイミド(DIC)等の公知の脱水縮合剤を用いることができる。
一態様において、本発明は、複合体に関する。この複合体は、上記のいずれかのペプチドと、前記ペプチドと結合したリンカーと、このリンカーに結合した物質とを含む複合体である。前記ペプチドは、TGF-βに結合することができるため、前記複合体は、前記物質をTGF-βに運搬することが可能である。
化合物:低分子化合物,中分子化合物を含み、例えば公知の低分子薬剤が挙げられる。
本発明はまた、本発明のペプチドを含む、組成物に関する。本項において、「ペプチド」は、「5.複合体」の複合体も含みうる。
前記医薬組成物は、前記ペプチドそのものを含んでもよいが、前記ペプチドの薬学上許容される塩、又はその溶媒和物を含んでもよい。本明細書において「ペプチド」は、特に明記しない限り、その薬学上許容される塩、又はその溶媒和物を含みうる。前記医薬組成物は、前記ペプチドを有効成分として有効量含むものが好ましい。
本発明はまた、本発明のペプチドを含む、診断用組成物に関する。
以下の実施例における化学合成において使用された全ての原料、ビルディングブロック、試薬、酸、塩基、固相樹脂、溶媒は、市販品をそのまま用いたか、もしくは当業者にて有機化学的手法を用いて合成できるものである。なお、保護基を含むアミノ酸は特記が無い限り市販品をそのまま用いた。
Fmoc-Gly-OH;
Fmoc-Asp(OMpe)-OH;
Fmoc-Phe-OH;
Fmoc-His(Boc)-OH;
Fmoc-Tyr(tBu)-OH;
Fmoc-Val-OH;
Fmoc-Cys(Trt)-OH;
Fmoc-Asn(Trt)-OH。
本実施例では、以下の構造を有するTGFb1_001(配列番号2)を合成した。
ESI-MS(+) 観測値m/z=1112.53 (M+2H)2+
実施例2 TGFb1_012(配列番号13)の合成
本実施例では、以下の構造を有するTGFb1_012(配列番号13)を合成した。
ESI-MS(+) 観測値m/z=1204.64 (M+2H)2+
実施例3 TGFb1_031(配列番号32)の合成
本実施例では、以下の構造を有するTGFb1_031(配列番号32)を合成した。
ESI-MS(+) 観測値m/z=1269.3 (M+4H)4+
上記で得られたペプチドA(16.5μmol)をペプチドの終濃度が25mMとなるようにDMSO/水(9/1)の混合溶液に溶解後、1.2当量のMePEG8c、1.1当量のHATU,3当量のDIPEAを加えて、室温で約1時間振盪した。
ESI-MS(+) 観測値m/z=977.70 (M+3H)3+
実施例4 TGFb1_032(配列番号33)の合成
本実施例では、以下の構造を有するTGFb1_032(配列番号33)を合成した。
ESI-MS(+) 観測値m/z=1331.06(中央値)
実施例5 TGFb1_024(配列番号25)の合成
本実施例では、以下の構造を有するTGFb1_024(配列番号25)を合成した。
ESI-MS(+) 観測値m/z=1336.96 (M+2H)2+
実施例6 TGFb1_068(配列番号69)の合成
ESI-MS(+) 観測値m/z= 1903.5(M+2H)2+
実施例7 各種ペプチド合成
本実施例では、実施例1-6と同様に、各種環状ペプチドを化学合成した。合成したペプチドの配列を、表1及び表4に示す。表1において、配列番号2、4-13、15-33は、アミノ酸配列が環化構造をとる環状ペプチドのC末端にグリシン(G)リンカーが付加されている。配列番号32は、Gリンカーの先にさらに、K(MePEG8c)が、そして、配列番号33は、Gリンカーの先にさらに、K(OCOmPEG10000)が付加されている。なお、配列番号3は、配列番号2と同じアミノ酸配列だが、C末端のグリシン(G)リンカー付加がない。なお、配列番号14は、配列番号13と同じアミノ酸配列だが、C末端のグリシン(G)リンカー付加がない。
本実施例では、(1)実施例1-5及び実施例7で合成した配列番号2-33のアミノ酸配列からなる各種ペプチドについてのTGF-βへの結合活性を評価するため、また、(2)実施例2で合成した配列番号13のアミノ酸配列からなるペプチドのTGF-βの2種類のアイソフォーム(TGF-β1、β2)に対する結合活性及び選択性を確認するため、TGF-βに対するペプチドの表面プラズモン共鳴(SPR)による分子間相互作用を、以下に示す方法によって試験を実施した。具体的な試験方法を以下に示す。
[SPR測定]
BiacoreT200(グローバルライフサイエンステクノロジーズジャパン株式会社)にCM3センサーチップ(グローバルライフサイエンステクノロジーズジャパン株式会社)を挿入し、ランニング緩衝液:HBS-EP+(グローバルライフサイエンステクノロジーズジャパン株式会社)でプライム操作を3回実施し、流速30μL/分で平衡化した。
本実施例では、実施例1-5及び実施例7で合成した配列番号2-33のアミノ酸配列からなるペプチドのTGF-β1阻害活性を、SBEレポーター-HEK293細胞系(BP Bioscience)を用いたSBEレポーターアッセイによって、下記の通り評価した。
本実施例では、実施例6及び実施例7で合成した配列番号34-69のアミノ酸配列からなる各種ペプチドについて、TGF-β1との結合を、ELISAを用いて評価した。配列番号34-69のアミノ酸配列からなるペプチドのC末端リンカーのGの先にHA-tagを結合させた。本明細書中、「HA-tag」とは、PEG10c-Y-P-Y-D-V-P-D-Y-A(配列番号70)のアミノ酸配列を意味する。これは、ELISAによりTGF-β阻害ペプチドとTGF-β1との結合を評価する際に必要なアミノ酸配列である。TGF-β1との結合活性に影響を及ぼすものでない。
組換えヒトTGF-β1(R&D Systems)を、Dynabead M-270 Carboxylic Acid(Thermo fisher scientific)に固定化しTGF-β1ビーズを作製した。固定化反応はAmine Coupling kit(同仁化学研究所)を用いた。
TGF-β1ビーズとC末端にHAタグ配列を付加したペプチドを0.1% Tween20(ナカライテスク)を含むPBS(PBS-T)中で1時間反応させた後PBS-Tにより洗浄した。TGF-β1ビーズに結合したペプチドを検出する為、1% BSAを含むPBS-T中でAnti-HA-tag mAb-HRP-DirecT(MBL)と前述のTGF-β1ビーズを30分反応させた。PBSTで洗浄後SureBlue TMB Microwell Peroxidase Substrate(Kirkegaard & Perry Laboratories)により10分間発色後TMB stop solution(Kirkegaard & Perry Laboratories)を添加し発色反応を停止させた。吸光度測定にはEnSpire(Perkin Elmer)を使用した。
参考例 新規非天然アミノ酸の合成
本参考例は、本発明のペプチドに含まれる非天然アミノ酸の合成を示す。
Claims (30)
- 以下のアミノ酸配列:
F-Nal1-V-V-N-V-Y-D-D-PeG-V-Nal1-Y-H-V-C-G(配列番号2);
あるいは、
上記のアミノ酸配列の2番目、4番目、7番目、8番目、9番目、10番目、12番目、13番目、14番目、15番目及び17番目のアミノ酸残基からなるグループから選択される、1-11個のアミノ酸残基において、置換、付加、欠失又は挿入を有するアミノ酸配列
を含む、ペプチド。 - 以下のアミノ酸配列:
F-X1-V-X2-N-V-X3-X4-X5-X6-V-X7-X8-X9-X10-C(配列番号1)
ここにおいて、
X1は、側鎖に置換されていてもよい芳香族環を有するアミノ酸であり;
X2は、任意のアミノ酸であり;
X3は、任意のアミノ酸であり;
X4は、任意のアミノ酸であり;
X5は、任意のアミノ酸であり;
X6は、側鎖に置換されていてもよいアルキル基を有するアミノ酸、又は置換されていてもよいアルキル基を有する二級アミノ酸であり;
X7は、側鎖に置換されていてもよい芳香族環を有するアミノ酸であり;
X8は、側鎖に置換されていてもよい芳香族環を有するアミノ酸であり;
X9は、任意のアミノ酸であり;
X10は、任意のアミノ酸である、
を含む、ペプチド。 - X1が、側鎖に置換されていてもよい縮合環を有するアミノ酸である、請求項2に記載のペプチド。
- X1が、Nal1、W6N、W7N又はWである、請求項2に記載のペプチド。
- X2が、V、K、KCOpipzaa、KCOmeglumine又はQである、請求項2-4のいずれか1項に記載のペプチド。
- X2が、V、K、KCOpipzaa、又はKCOmeglumineである、請求項2-4のいずれか1項に記載のペプチド。
- X3が、Y、4Py、A、E、F4G、Q,K、F3G、又は3Pyである、請求項2-6のいずれか1項に記載のペプチド。
- X3が、Y又は4Pyである、請求項2-6のいずれか1項に記載のペプチド。
- X4が、置換若しくは未置換の芳香族アミノ酸及び含硫アミノ酸、以外のアミノ酸である、請求項2-8のいずれか1項に記載のペプチド。
- X4が、D、A、Q、K又はEである、請求項2-8のいずれか1項に記載のペプチド。
- X5が、置換若しくは未置換の芳香族アミノ酸及び含硫アミノ酸、以外のアミノ酸である、請求項2-10のいずれか1項に記載のペプチド。
- X5が、D、E、KCOpipzaa、KCOmeglumine、A、Q、又はKである、請求項2-10のいずれか1項に記載のペプチド。
- X6が、PeG、K又はMeGである、請求項2-12のいずれか1項に記載のペプチド。
- X7が、側鎖に置換されていてもよい縮合環を有するアミノ酸である、請求項2-13のいずれか1項に記載のペプチド。
- X7が、Nal1、W6N、又はWである、請求項2-13のいずれか1項に記載のペプチド。
- X8が、Y、4Py、3Py又はEである、請求項2-15のいずれか1項に記載のペプチド。
- X8が、Y又は4Pyである、請求項2-15のいずれか1項に記載のペプチド。
- X9が、置換若しくは未置換の芳香族アミノ酸及び含硫アミノ酸、以外のアミノ酸である、請求項2-17のいずれか1項に記載のペプチド。
- X9が、H、A、Q又はEである、請求項2-17のいずれか1項に記載のペプチド。
- X10が、置換若しくは未置換の芳香族アミノ酸及び含硫アミノ酸、以外のアミノ酸である、請求項2-19のいずれか1項に記載のペプチド。
- X10が、V、E、KCOpipzaa、KCOmeglumine、Q、K,又はAである、請求項2-19のいずれか1項に記載のペプチド。
- 配列番号2-33、あるいは、
配列番号2、4-13、15-33のうちC末端のグリシン(G)を有しないアミノ酸配列
のいずれかに1つのアミノ酸配列を含む、又は、からなる、請求項1-21のいずれか1項に記載のペプチド。 - 前記ペプチドが、環状ペプチドである、請求項1-22のいずれか1項に記載のペプチド。
- クロロアセチル化したアミノ酸と、前記ペプチドに含まれるシステイン残基とが結合された環状構造を有する、請求項23に記載の環状ペプチド。
- さらに、付加的なアミノ酸残基を含む、請求項1-24のいずれか1項に記載のペプチド。
- そのC末端にリンカーを含む、請求項1-21、23-25のいずれか1項に記載のペプチド。
- TGF-β結合活性を有する、請求項1-26いずれか1項に記載のペプチド。
- TGF-βアンタゴニスト活性を有する、請求項1-27いずれか1項に記載のペプチド。
- 請求項1-28のいずれか1項に記載のペプチドを含む、医療用、診断用組成物。
- 請求項1-28のいずれか1項に記載のペプチドを含む、研究用組成物であって、ただし、オルガノイドを培養するための培地への添加剤として使用される組成物は除く、前記研究用組成物。
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