WO2005007836A1 - Regulatorische-t-zellen enthaltend galectine zur therapie und diagnose von erkrankungen - Google Patents
Regulatorische-t-zellen enthaltend galectine zur therapie und diagnose von erkrankungen Download PDFInfo
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- WO2005007836A1 WO2005007836A1 PCT/EP2004/007890 EP2004007890W WO2005007836A1 WO 2005007836 A1 WO2005007836 A1 WO 2005007836A1 EP 2004007890 W EP2004007890 W EP 2004007890W WO 2005007836 A1 WO2005007836 A1 WO 2005007836A1
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- C07K14/4701—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from vertebrates from mammals not used
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Definitions
- the present invention relates to regulatory T cells containing galectins, in particular their use as markers and for the therapy and diagnosis of diseases, in particular allergies, autoimmune diseases, in particular rheumatoid arthritis, multiple sclerosis or Crohn's disease, chronic inflammation, asthma, immunodeficiency diseases, AIDS, graft rejection and cancer, and diabetes.
- the invention further relates to suitable binders and a test system (diagnostic agent).
- the immune system is able to differentiate between foreign proteins and structures of the own body, but also between harmless and pathogenic antigens and thus to avoid unnecessary and auto-aggressive immune responses. Maintaining the immunological tolerance to the body's own structures, while developing protective immune responses against pathogens, is essentially based on the formation of antigen-specific effector cells for immune defense and the formation of antigen-specific suppressor cells to maintain immunological tolerance.
- Sakaguchi et al. describe for the first time a subpopulation of CD4 + T helper cells, characterized by a constitutive expression of the ⁇ chain of the IL-2 receptor (CD25), which is essential for the control of autoaggressive immune responses in mice (Sakaguchi, S., Sakaguchi, N , Asano, M., Itoh, M., and Toda, M. (1995) Immunologie seif-tolerance maintained by activated T cells expressing IL-2 reeeptor alpha-chains (CD25). Breakdown of a Single mechanism of seif-tolerance causes various autoimmune diseases. J. Immunol. 155, 1151-1164).
- CD25 + CD25 + T cells in various species, including humans, have been identified as CD25 + regulatory T cells (in short: Treg, hereinafter referred to as characterized by the coexpression of the surface proteins CD4 + and CD25 +), which act as a resident population Represent 5-10% of human peripheral CD4 + T cells.
- Treg regulatory T cells
- Freshly isolated, CD25 + Tregs are anergic, ie they do not proliferate after allogeneic or polyclonal stimulation, but they suppress the proliferation and cytokine formation of conventional CD4 + and CD8 + T cells.
- CD4 + CD25 + immunoregulatory T cells suppress polyclonal T cell activation in vitro by inhibiting interleukin 2 production. J. Exp. Med. 188, 287-296; Suri-Payer, E., Amar, AZ, Thornton, AM, and Shevach, EM (1998) CD4 + CD25 + T cells inhibit both the induction and effector function of autoreactive T cells and represent a unique lineage of immunoregulatory cells. ⁇ J. Jiruriunol. 160, 1212-1218; Piccirillo, CA, and Shevach, EM (2001) Cutting Edge: control of CD8 + T cell activation by CD4 + CD25 + immunoregulatory cells. J. Immunol. 167, 1137-1140].
- Tregs in vivo results in a number of autoimmune diseases, but also in an improved tumor defense (Sakaguchi (supra)).
- This finding supports the thesis of an ambivalent function of the Tregs.
- they prevent the development of auto-aggressive immune reactions, on the other hand, they make them more difficult at the same time an effective tumor defense, since tumor cells generally represent immunological "self" and therefore their elimination by effector T cells from Tregs is prevented.
- the increase in the suppressive function of Tregs is considered helpful for the therapy, in particular of autoimmune diseases, while one transient inhibition of their suppressive properties can support tumor defense.
- Treg-specific molecules markers, targets
- Treg-specific molecules in particular have a decisive influence on the functionality of the cells and form the basis for the targeted use of these properties for therapeutic and diagnostic purposes in the field of allergies, autoimmune diseases, chronic inflammation, immunodeficiency diseases, graft rejection and cancer as well as AIDS, diabetes.
- the protein composition of the individual T cell subpopulations in particular the Treg (i.e. CD4 + CD25 + and CD4 + CD25 + ß7 + - subpopulations), was examined and specifically Treg - own proteins were identified.
- Treg i.e. CD4 + CD25 + and CD4 + CD25 + ß7 + - subpopulations
- ⁇ -galactosidase-binding proteins such as Galectin-1 and Galectin-10 (so-called Charcot-Leyden Crystal (CLC) protein) were identified.
- Galectins are described, for example, in Ni et al. WO 98/015624 AI and Ackerman et al. US 5,242,807. However, the specific suitability of the galectins for manipulating and modifying Treg is not recognized. The invention therefore relates to galectins containing Treg and their isolation. Galectins in Tregs are therefore suitable markers or targets.
- Treg is understood to mean those T cell subpopulations which are of human origin or can come from mammals. However, the subpopulations Treg-CD4 + CD25 + and
- isolated Treg are ex vivo cells
- Treg describes "in vivo" Treg to be found, e.g. in human blood or thymus or mammals.
- Galectins in the sense of this invention are proteins with the function of a ⁇ -galactosidase binding protein, that is to say those galectins such as galectin 1-14 as human galectin or as a homologous protein from humans or mammals.
- galectin 1 or 10 preference is given to galectin 1 or 10 , in particular according to one of the sequences SEQ ID No. 1-5.
- Galectin 10 can appear as SEQ ID No. 1 or SEQ ID No.
- the isoforms a.), B.) And c.) May also be in a truncated form and may be acteylated, according to the sequences SEQ ID No. 8-64.
- the galectins according to the invention can also be modified, for example by means of post-translational modifications, such as glycolization.
- galectins are given in WO 98/015624 AI and Galectin 10 is disclosed in Ackerman et al. US 5,242,807. These galectins are included according to the invention.
- the Treg containing galectins according to the invention are recombinantly modified in such a way that they contain an amino acid sequence according to the invention, preferably SEQ ID No. 1 and SEQ ID No. 2 or SEQ ID No. 4, or nucleic acid sequence according to the invention, preferably SEQ ID No. 6 or SEQ ID No. 7, included.
- the invention therefore also relates to the amino acid sequences SEQ ID No. 1-5 or polypeptides or proteins and their coding nucleic acid sequences.
- SEQ ID No. 1 or SEQ ID No. 2 (Galectin 10) only show a 60% agreement with the corresponding sequences given in WO 98/015624 AI. This is due to the specific Treg origin according to the invention.
- the invention therefore also relates to those amino acid sequences (polypeptides, proteins) which have a sequence identity or homology of 70% and more, preferably 80% and more, particularly preferably 90-95% and more with SEQ ID No. 1 or SEQ ID No. 2 have. Also included are those analog amino acid sequences which, due to the exchange of one or more amino acid (s) in these sequences, nevertheless ensure the desired function of a galectin.
- fusion proteins are also affected, containing an amino acid sequence according to the invention or a galectin mentioned as a partial sequence. Examples of recombinant fusion proteins are given in EP 282 042 B1 (His-Tag).
- the invention relates to nucleic acids which code for a galectin and preferably code for a galectin obtainable from a Treg or for the amino acid sequences according to the invention.
- the nucleic acids according to the invention can have a nucleic acid sequence according to SEQ ID No. 6, coding for SEQ ID No. 1 or SEQ ID No. 2 (Galectin 10) or a nucleic acid sequence according to SEQ ID No. 7, coding for SEQ ID No. 4 (Galectin 1).
- the nucleic acid according to the invention contains one or more non-coding sequences and / or a poly (A) sequence, one or more recognition sequences and, if necessary, one or more potential N-glycosylation sites.
- the non-coding sequences are regulatory sequences, such as promoter or enhancer sequences, for the controlled expression of the coding gene containing the nucleic acids according to the invention.
- such nucleic acids can be the subject of customary expression vectors, customary host cells or customary gene therapy vectors (for example J. Sambrook, EF Fritsch, T.
- nucleic acid (synonym: polynucleotide) has the Meaning in the sense of DNA or RNA or chemical analogues and the like.
- the galectins according to the invention can secrete and bind to membrane-bound proteins on Treg or effector cells. In addition, they can cross-link such membrane-bound proteins and therefore influence and regulate their functions. This property can be used according to the invention to influence the interaction between Treg and T effector cells, e.g. for the treatment of diseases related to Treg or an effector cell.
- the galectins according to the invention can be present in the cytosol of the Tregs.
- the invention therefore relates to such Treg, where at least one galectin is secreted, membrane-like or presented on the surface or in the cytosol.
- Recombinant methods can be used to accumulate at least one galectin in the Treg or on the surface of the Treg.
- an amino acid sequence or nucleic acid according to the invention can be introduced into Treg.
- the "Treg containing galectins" according to the invention are recombinantly modified in such a way that they contain an amino acid sequence according to the invention, preferably SEQ ID No. 1 or SEQ ID No. 2 or SEQ ID No. 4, or a nucleic acid sequence according to the invention, preferably SEQ ID No. 6 or SEQ ID No. 7.
- the invention further relates to binders on at least one isolated regulatory T cell or native regulatory T cell containing at least one galectin.
- the binders cannot be finally selected from in the group: inhibitor, agonist, antagonist, probe, antibody or immunomodulator.
- the binder can also induce a signal, such as a color reaction, radioactive labeling, which is sufficient to identify and ⁇ iodify a Treg containing galectins. Therefore, the binder can be a "probe". In the broadest sense, the binder is therefore also an addressed molecule according to the invention, which binds to a suitable signal-mediating receptor on Treg containing galectin and generates a feedback in Treg due to the containing galectin.
- galectins in Treg can advantageously be enriched by means of an inhibitor or modulator.
- a probe e.g. further Treg cells containing galectins can be identified.
- a probe is, for example, an antibody that specifically recognizes one or more epitopes present on the amino acid sequences according to the invention (e.g. SEQ ID No. 1 or SEQ ID No. 2) or galectins (production e.g. according to Köhler).
- the binder according to the invention may contain one or more epitopes, one or more epitopes against galectins, and one or more epitopes against surface proteins on Treg or effector cells, in particular with the ability to crosslink surface proteins, such as not conclusively e.g. CD25, CD44, CD45, GITR, CTLA-4, Fox P3.
- the binders have the function of activating or deactivating the isolated Treg or native Treg containing at least one galectin.
- the galectins or binders containing Treg are therefore suitable as medicaments, preferably for the treatment and therapy of diseases, namely allergies, autoimmune diseases, in particular rheumatoid arthritis, multiple sclerosis or Crohn's disease, chronic inflammation, asthma, immune deficiency diseases, AIDS, transplant rejection and cancer as well as diabetes.
- autoimmune diseases selected from the group: alopecia areata, Bechterew's disease, antiphospholipid syndrome, Addison's disease, Behcet's disease, celiac sprue, chronic fatigue syndrome (Chronic Fatigue Immune Dysfunction Syndrome (CFIDS)), polyneuropathy, Churgul-Stromatosis syndrome CREST syndrome (Raynaud's syndrome), cold agglutinin disease, cryoglobulinemia, fibromyalgia, fibromyositis, Graves' disease, Guillain-Barre syndrome, idiopathic pulmonary fibrosis, idiopathic thrombocytopenia, IgA nephropathy, borrowed planus, polychonditis, meniere's disease Syndrome, polymyalgia rheumatica, primary agammaglobulinemia, biliary cirrhosis, psoriasis, Reiter's disease, sarcoidosis
- Isolated Treg containing galectins can be applied to the body to be treated.
- suitable binders can be administered to the patient in sufficient doses.
- the galectins and / or binders containing Treg may be formulated with further auxiliaries.
- the invention relates to the use of galectins in Treg as a marker or target.
- the galectins can serve as a target for the manipulation or modulation of the suppressive properties of a Treg. This can be done, for example, using a binder or a substance.
- the binder or the substance can be an inhibitor which inhibits, inhibits or promotes the expression of the galectin.
- the Treg-specific galectins can serve as markers to identify Treg with (increased) suppressive properties.
- the invention relates to a test system containing at least one binder and at least one Treg containing galectins, for identifying suitable binders or Treg, preferably those with increased suppressive properties.
- the invention therefore also relates to a test system comprising at least one Treg containing galectins and at least one target cell, in particular T cell, B cell, macrophage, predendritic cell, dendritic cell, embryonic cell and / or fibroblast, which are incubated with at least one Treg in vitro detection of suppressive properties, in particular cellular immune response from effector cells of the immune system, in particular B cells, NK cells, preferably T cells, T helper cells.
- a test system comprising at least one Treg containing galectins and at least one target cell, in particular T cell, B cell, macrophage, predendritic cell, dendritic cell, embryonic cell and / or fibroblast, which are incubated with at least one Treg in vitro detection of suppressive properties, in particular cellular immune response from effector cells of the immune system, in particular B cells, NK cells, preferably T cells, T helper cells.
- the cellular immune response of the target cells can be tested in the test system according to the invention.
- An immune response can be detected, for example, by the synthesis of cytokines such as gamma interferon or interleukins.
- the corresponding cytokine collects intracellular in this test system and can be detected using fluorescence-coupled antibodies (e.g. ELISA).
- fluorescence-coupled antibodies e.g. ELISA
- surface molecules lysis of the target cell or cell proliferation.
- FACS fluorescent activated cell sorter
- the effector cells are mammalian cells, in particular human or murine cells or immune cell lines and / or cultivated primary immune cells.
- test system is incubated with at least one further substance that can trigger an immune response, such as proteins, epitopes, protein fragments, antigens.
- test system is also suitable for the identification of binders according to the invention.
- the invention further relates to a diagnostic agent (synonym: array or assay) for carrying out the test systems according to the invention and, if appropriate, to a pharmaceutically acceptable carrier.
- a diagnostic agent synonym: array or assay
- Examples of pharmaceutically acceptable carriers are glass, polystyrene, polypropylene, dextran, nylon, amylase, natural or modified cellulose, polyacrylamides, Agarose, aluminum hydroxide or magnitide. Furthermore, the carrier can consist of 96 corrugated sheets and higher.
- the diagnostic agent can be in solution, bound to a solid matrix and / or an adjuvant added.
- the diagnostic agent can be applied to a patient as desired in vivo (e.g. capsule, tablet).
- a diagnostic agent according to the invention is therefore suitable for diagnosing diseases, namely allergies, autoimmune diseases, in particular rheumatoid arthritis, multiple sclerosis or Crohn's disease, chronic inflammation, asthma, immune deficiency diseases, AIDS, transplant rejection and cancer, and diabetes.
- diseases namely allergies, autoimmune diseases, in particular rheumatoid arthritis, multiple sclerosis or Crohn's disease, chronic inflammation, asthma, immune deficiency diseases, AIDS, transplant rejection and cancer, and diabetes.
- autoimmune diseases namely alopecia areata, Bechterew's disease, Antiphospholipid syndrome, Addison's disease, Behcet's disease, celiac sprue, chronic fatigue syndrome (Chronic Fatigue Immune Dysfunction Syndrome (CFIDS)), polyneuropathy, Churg-Strauss syndrome (GranESTomatose syndrome) (Raynaud's syndrome), cold agglutinin disease, cryoglobulinemia, fibromyalgia, fibromyositis, Graves' disease, Guillain-Barre syndrome, idiopathic pulmonary fibrosis, idiopathic thrombocytopenia, IgA nephropathy, lying planus, Meniere's disease, polyarterchondritis, polyarteritis syndrome Polymyalgia rheumatica, primary agammaglobulinemia, biliary cirrhosis, psoriasis, Reiter's
- T cells The isolation of the T cells was carried out from PBMC (peripheral blood mononuclear cells), which were carried out by standard density gradient centrifugation from normal buffy coats or leukapherisates from healthy human donors.
- PBMC peripheral blood mononuclear cells
- Example la CD4 + CD25 + regulatory T cells (CD25 + Tregs)
- the starting material is the leukapherisate from voluntary, healthy donors, which is produced by the Transfusionsclo Mainz and contains an average of 7-10 x 10 9 leukocytes.
- the mononuclear cells are isolated by means of Ficoll gradient centrifugation and then washed intensively with PBS + 1 mM EDTA.
- the isolated leukocytes are then taken up in PBS + 0.5% HSA (human serum albumin) + 1 mM EDTA and with anti-CD25 microbeads (2 ⁇ l microbeads / 107 leukocytes, microbeads: Miltenyi GmbH, Bergisch-Gladbach, FRG) for 15 min , incubated at 4 ° C. After the incubation, the leukocytes are washed twice with PBS + 1 mM EDTA.
- HSA human serum albumin
- CD25 + leukocytes To isolate the CD25 + leukocytes, the cells are then applied to a separation column (LS Columns, Miltenyi) and separated in a permanent magnet (Miltenyi). The average yield of CD25 + leukocytes is 1.2-2% (purity> 97%).
- the CD25 + leukocytes are subsequently cd with CD8-, CD19-, CD14- Dynabeads (Dynal, Hamburg, FRG, 3 beads / cell) and mouse IgGl-anti-human-CD45RA monoclonal antibodies (Coulter / Immunotech, Hamburg, FRG, 1 ⁇ g mAb / 10 6 leukocytes) 20 min. incubated in X-VIVO-15.
- the bound CD8 +, CD19 + and CD14 + contaminations can be removed directly with the help of a permanent magnet (Dynal), the CD45RA + cells are removed with anti-mouse IgG Dynalbeads (Dynal) in the permanent magnet. This depletion step is then repeated again (purity of CD4 + CD25 + leukocytes> 95%).
- Example lb ⁇ 4ßl + and ⁇ 4ß7 + subpopulations of human regulatory T cells
- Tregs contain two functionally different subpopulations that differ in the expression of integrins. Approximately 20% of the Tregs express the ⁇ 4ß7 integrin, 80% the ⁇ 4ßl integrin. The following changes to the isolation protocol are necessary to isolate these subpopulations:
- the isolated leukocytes are 15 min. incubated at 4 ° C. with mouse IgG anti-human CD25-FITC mAb (2 ⁇ l mAb / 107 leukocytes, M-A251, BD PharMingen, San Diego, USA) and then washed intensively with PBS + 1 mM EDTA.
- the FITC-positive cells are isolated with the aid of anti-FITC multisort microbeads (Miltenyi).
- the procedure is carried out analogously to the direct isolation of CD25 + leukocytes with CD25 microbeads.
- the microbeads are then removed from the surface of the leukocytes by means of enzymatic digestion, according to the manufacturer (Miltenyi).
- CD4-negative contaminations are depleted as described previously with CD8, CD19 and CD14 Dynabeads, CD45RA + cells are not depleted (purity CD4 + CD25 + T cells> 95%).
- the ⁇ 4ß7 + subpopulation is isolated.
- the CD4 + CD25 + T cells with a rat IgG anti-human- ⁇ 7 integrin PE mAb (BD-PharMingen, 2 ul / 107 cells) for 15 min. Incubated at 4 ° C and then washed intensively with PBS + 1 mM EDTA.
- the process for isolating the ⁇ 7 + T cells is carried out analogously to the isolation of CD25 + T cells with the aid of anti-PE microbeads (Miltenyi), resulting in a purity of CD4 + CD25 + ⁇ 4ß7 + cells> 90%.
- the negative fraction expresses the integrin ⁇ 4ßl (purity CD4 + CD25 + ⁇ 4ßl + cells> 80%).
- CD25 + Tregs are characterized by their inhibitory effect on the activation of CD4 + and CD8 + T cells in vitro.
- CD25 + Tregs in vitro The functional characterization of CD25 + Tregs in vitro is analyzed in co-culture assays with CD4 + T helper cells.
- the T cells are stimulated either with allogeneic, mature dendritic T cells or polyclonally with anti-CD3 + anti-CD28 mAb.
- Example 3 Multisort positive selection of CD4 + CD25 + and CD4 + CD25 + ß7 + T cells
- CD4 + T cells were isolated using the CD4-MACS multisort kit (Miltenyi, Bergisch-Gladbach, Germany) and from them with anti-CD25-FITC (M-A251, BD PharMingen, San Diego, USA) and anti FITC-Multisort Beads (Miltenyi, Bergisch-Gladbach, Germany) the CD4 + CD25 + T- Cells. Then B cells, macrophages and CD8 + T cells were depleted using CD19, CD14 and CD8 Dynabeads (Dynal, Hamburg, Germany).
- CD4 + CD25 + ß7 + Treg subpopulation of CD4 + CD25 + Treg
- ß7-PE and anti-PE beads Miltenyi, Bergisch-Gladbach, Germany
- CD25 is a typical surface molecule on Treg, but it is not only expressed in this cell type. For this reason, a functional control of the suppressive properties of the isolated cells was carried out before each analysis.
- Example 5 Polyclonal stimulation with anti-CD3 and anti-CD28 monoclonal antibodies
- a constant number of conventional CD4 + T cells (lx 105 / cavity) can be activated polyclonally with anti-CD3 (1 ⁇ g / ml, OKT-3) and anti-CD28 monoclonal antibodies (2 ⁇ g / ml, CD28.2) in the presence of a varying number of CD4 + CD25 + T cells (ratio 1: 1 to 1: 4).
- T cell proliferation was measured after three days of cultivation and a subsequent pulsed treatment with 3HTdR (37 kBq / well) for 5 hours. The cells tested in this way were used for the proteome analyzes.
- Total cell lysates from cultured cells for 2DE The extraction of the proteins from the cells after cell lysis was carried out according to a slightly modified method according to Klose (Klose, J. and Kobalz, U., Two-dimensional electrophoresis of proteins: an updated protocol and implications for a functional analysis of the genome. Electrophoresis 16, 1034-1059 (1995) and Klose, J. Fractionated extraction of total tissue proteins from mouse and human for 2-D electrophoresis. Methods Mol Biol 112, 67-85 (1999)). The cells were lysed mechanically by means of ultrasound and glass balls in a phosphate buffer which contained protease inhibitors against a large number of different proteases.
- the 2D gel electrophoresis disrupting nucleic acids were digested at room temperature within 20 min by adding the nuclease benzonase.
- the proteins were dissolved in a buffer containing urea and thiourea with the addition of DTT.
- Servalytes 2-4 were added for the isoelectric focusing of the proteins.
- the isoelectric focusing (IEF) of the proteins was carried out according to the method of Klose (Klose, J., Protein mapping by combined isoelectric focusing and electrophoresis of mouse tissues.
- Klose Korean, J., Protein mapping by combined isoelectric focusing and electrophoresis of mouse tissues.
- a novel approach to testing for induced point mutations in mammals Human genetics, 26, 231- 243 (1975)) with carrier ampholytes in round gels made of polyacrylamide under reducing conditions.
- the separations were carried out in a pH range from 2 to 11, the length of the IEF gels being 40 cm.
- the protein separation of the proteins separated by IEF using SDS-PAGE was carried out in 15% polyacrylamide gels.
- the IEF gel strands were run twice with running buffer (0.3% (w / v) Tris Base, 1.44% (w / v) glycine, 0.1% (w / v) SDS) washed to remove excess DTT.
- the gel strand was then placed on the SDS gel without air bubbles and fixed with a 1% agarose solution (with bromophenol blue).
- the proteins entered the gel at 65 mA for 15 min and the separation within about 5 h at 100 mA for 0.75 mm thick analytical gels or at 75 and 200 mA for 1.0 and 1.5 mm thick preparative gels. The separation distance was 30 cm. Visualization of the proteins
- the polyacrylamide gels were digitized for image evaluation after the gels had dried using a transmitted-light scanner.
- the quantitative evaluation of the relative protein intensities was carried out using special image analysis software suitable for these analyzes (ProteomWeaver Vers. 2.0, Definiens, Germany).
- the proteins found with the help of the image evaluation were cut out of the gels manually. With the aid of a washing robot, the gel pieces were alternately washed three times alternately with 10 ⁇ l digest buffer (10 mM NH4HC03) or digest buffer / acetonitrile 1: 1 in order to remove the dye and buffer additives. In the case of silver-colored spots, the silver was oxidized before washing by adding 15 ⁇ l decolorizing solution (100 mM potassium hexacyanoferrate (III) / 30 mM sodium thiosulfate, 1: 1) at room temperature within about 1 min.
- decolorizing solution 100 mM potassium hexacyanoferrate (III) / 30 mM sodium thiosulfate, 1:
- the gel pieces were then dehydrated in a vacuum centrifuge and 2 ⁇ l of a trypsin solution (0.05 ⁇ g / ⁇ l trypsin in digestion buffer) were added.
- the proteolytic cleavage was carried out at 37 ° C. for at least 4 h or overnight.
- the resulting proteolysis products were extracted from the gel matrix at room temperature within 30 min by adding 5 ⁇ l 0.1% TFA.
- Example 8 MALDI-TOF mass spectrometry
- peptide mass fingerprint spectra (PMFs) of the samples dried on the sample plate were measured with the following settings: acquisition method: reflector, voltage polarity: positive, acceleration voltage: 25 kV, reflector voltage: 26.3 kV, lens voltage: 6.2 kV, reflector detector voltage: 1.72 kV and deflection voltage: 0 kV
- the mass spectra were calibrated automatically by means of a calibration algorithm from the Proteinscape® database (Bruker Daltonik) to autoproteolysis products of trypsin and to known peptides from contaminations such as keratin that occur repeatedly in the spectra.
- the peptide mass spectra were analyzed with the help of a non-redundant NCBI protein database with the help of the metasearch engine from Proteinscape ® and the search algorithms MASCOT and ProFound (version 2002.03.01). Evaluation:
- the Charcot-Leyden Crystal Protein was detected and identified in the gels in three isoforms with different molecular weights and isoelectric points.
- Isoform 1 spot 68
- isoform 2 spot 33
- isoform 3 spot 34
- All isoforms were identified as Charcot-Leyden Crystal Protein (Galectin 10) (SEQ ID No. 1 or SEQ ID No. 2).
- the three isoforms showed coregulation in the T cell populations examined.
- Galectin 1 (SEQ ID No. 4) was also found in a higher protein concentration in the stimulated and non-stimulated CD4 + CD25 + T cells compared to the non-stimulated CD4 + T cells.
- mice inbred strain used: BALB / c.
- the sequences of the corresponding galectin proteins are SEQ ID No. 3 and SEQ ID No. 5th
- Example 9 Isolation and Stimulation of Human T Cell Populations
- CD4 + CD25-T effector cells hereinafter referred to as CD4 + T cells
- CD4 + CD25 + Treg cells CD25 + Treg cells
- CD25 + Treg cells CD25 + T cells
- CD25 + Treg cells CD25 + Treg cells
- CD25 + cells were isolated using CD25 microbeads (Miltenyi). This resulted in CD25high cells.
- contaminations from CD4 cells were depleted by CD14, CD8, and CD19 Dynabeads (Dynal). This purification step resulted in a population of CD4 + CD25high T cells in a purity of> 95%.
- CD25 + CD45RA + T cells were depleted using anti-CD45RA mAb (Pharmingen) in combination with anti-mouse IgG Dynabeads. This resulted in CD4 + CD25 + CD45RO + T cells (purity> 96%).
- CD4 + CD25 - T cells were isolated using CD4 microbeads and CD25 + was then depleted from T cell contamination with CD25 Dynabeads (purity of CD4 + CD25 T cells> 98%).
- CD4 + CD25 + T cells were isolated using anti-CD25-FITC mAb in combination with anti-FITC multisort beads (Miltenyi) and then further purified by depletion of CD4 contaminations.
- Treg cells positive subset of Treg cells was isolated using anti-ß7 integrin-PE mAb in combination with anti-PE microbeads and resulted in two populations: CD4 + CD25 + ß7 + T cells (purity> 95%, positive selected) and CD4 + CD25 + ß7 T cells (purity> 90%, negatively selected 1 ⁇ g / ml anti-CD3 (OKT-3) and 2 ⁇ g / ml anti-CD28 (CD28.2, Pharmingen) were used for the polyclonal activation of the T cells.
- sub-optimal stimulation of the cells with 0.5 ⁇ g / ml anti-CD3 (OKT-3) and Gam a rays inactivated PBMC was used. The cells were always cultivated in serum-free X-VIVO-15 medium (Cambrex).
- Example 10 Cloning, recombinant production and purification of a His-Galectin-10 fusion protein
- the galectin-10 gene was amplified from human leukocyte Quick-Clone cDNA (BD Biosciences).
- the N-terminal His-tag galectin-10 construct (pET16b) was transfected into the Echerichia coli strain BL21 (DE3) and expression was induced with ImM isopropyl-beta-D-thiogalactopyranoside (IPTG, Sigma).
- IPTG ImM isopropyl-beta-D-thiogalactopyranoside
- the cells produced the His-Galectin-10 fusion protein in the presence of IM sorbitol and 2.5mM betaine.
- the recombinant His-galectin-10 fusion protein was purified using Ni-NTA affinity chromatography (Qiagen). The identity of the purified protein was confirmed using MALDI mass spectrometry.
- Human galectin-10 mRNA was quantified from the following T cell populations: CD4 + unstimulated and polyclonally stimulated with anti-CD3 / CD28 for 24 h, CD4 + CD25 + ßl + unstimulated and polyclonally stimulated with anti-CD3 / CD28 for 24 h as well as CD4 + CD25 + ß7 + unstimulated and polyclonally stimulated with anti-CD3 / CD28 for 24 h. All cellular RNA was isolated from lxlO 6 cells using TRIZOL (Invitrogen, Düsseldorf, Germany). The corresponding cDNA was synthesized with RevertAid M-MulV reverse transcriptase according to the manufacturer's instructions (MBI Fermentas, St.
- the RT-PCR was carried out using the following reaction mixture: 25 ⁇ l reaction mixture containing 2.5 mM MgCl 2 , 0.2 mM dNTP, 0.5 ⁇ M forward and reverse primer and 0.25 U from Biotherm DNA Polymerase (GeneCraft, Germany ).
- the following PCR program was used: 94 ° C for 2 min, and 35 cycles each with 94 ° C for 30 s, at 55 ° C for 30 s and 72 ° C for 1 min.
- Galectin-10th forward 5 '-TAC CCG TGC CAT ACA CAG AGG CTG-3' Galectin-10.
- Example 12 Production of a monoclonal anti-galectin-10 antiserum
- the cells were lysed in SDS buffer and the protein concentration was analyzed with a DC protein assay (Bio Rad, Kunststoff, Germany). Serum albumin was used as the standard. The proteins were separated in 5-10 ⁇ g / bag in 16% Tricin SDS polyacrylamide gels and then transferred to membranes. Unspecific binding sites were saturated by Roti-Block (Roth, Düsseldorf, Germany).
- the membranes were incubated for 1 hour each with the anti-galectin-10 antibody and then with a horseradish peroxidase-conjugated secondary anti-rabbit antibody. The peroxidase activity was visualized by a color reaction with 3, 3 '-diaminobenzidine (DAB, DakoCytomation, Copenhagen, Denmark).
- DAB 3, 3 '-diaminobenzidine
- Cyto-centrifugation preparations from freshly isolated CD4 + or CD25 + T cells were air-dried and stored at -20 ° C. until staining.
- the sample carriers were briefly thawed and then fixed in 4% paraformaldehyde for 15 min at room temperature.
- the cells were washed with PBS and incubated with 50 mM NH 4 C1 in PBS for 10 minutes.
- the cells were then permeabilized on ice with 0.2% Triton X-100 within 5 minutes.
- the cytospins were incubated with a peroxidase blocking solution (DakoCytomation, Copenhagen, Denmark) for 5 minutes to endogenously To neutralize peroxidase activity.
- a peroxidase blocking solution DakoCytomation, Copenhagen, Denmark
- Example 15 Comparative proteome study of human CD25 + Tregs versus conventional CD4 + T cells
- Naturally occurring CD25 + Tregs are characterized by the unique properties of suppressing the activation of conventional CD4 + T cells. So far, however, little is known about the proteins involved in this cell contact-dependent process. For the identification of such proteins, which are involved in the function of the CD25 + Treg cells, a differential proteome analysis of resting and activated conventional CD4 + T cells was carried out compared to resting and activated CD25 + Treg cells. For this purpose, up to 10 8 CD25 + Treg and CD4 + T cells with very high purity were isolated from buffy coats or leukapheresates. The functionality of the T cell preparations was characterized prior to proteome analysis.
- the resting cells were analyzed by 2D-PAGE immediately after isolation, while the activated cells were polyclonally activated for 48 hours.
- the 2D gels used for the proteome study covered a pI range from 4 to 10 and a molecular weight range from 6 to 150 kDa. Approximately 1600 protein spots were detected and matched in all gels when the gels were compared.
- the gels of a sample were prepared in triplicate, the protein spot patterns not only being very similar within one sample, but also when comparing the different T cell populations and also the individual human donors examined.
- the largest proportion '(> 90%) of all protein spots that could be displayed showed a high reproducibility both in the relative position in the 2D gel and in the spot intensity.
- the galetin-10 isoforms 1 to 3 show the greatest differences in comparison with an increase in intensity by a factor of 10 to 40.
- galectin-10 has so far only been described in granulocytes (Golightly, LM, Thomas, LL, Dvorak, AM and Ackerman, SJ "Charcot-Leyden crystal protein in the degranulation and recovery of activated basophils" J. Leukoc. Biol. 51 , 386-392 (1992); Dvorak, AM, Letourneau, L., Weller, PF and Ackerman, SJ "Ultrastructural localization of Charcot-Leyden crystal protein (lysophospholipase) to intracytoplasmic crystals in tumor cells of primary solid and papillary epithelial neoplasm of the pancreas "Lab. Invest.
- Freshly isolated CD4 + T cells express very small amounts of galectin-10 mRNA while freshly isolated CD25 + Treg cells express large amounts of galectin-10 mRNA. In both cell populations, the mRNA levels decrease after polyclonal activation. In CD4 + T cells, galectin-10 mRNA is no longer detectable 48 hours after activation.
- Example 17 Western blot analysis of galectin-10 in cell lysates of resting and activated human CD4 + T cells and CD25 + Treg cells
- recombinant galectin-10 was produced and a polyclonal antiserum was generated from it.
- the IgG fraction of the antiserum produced was used for the detection of galectin-10 in lysates of resting and activated conventional human CD4 + T cells and CD25 + Treg cells.
- the proteins of the lysates were previously separated using one-dimensional or two-dimensional gel electrophoresis.
- FIG. 7 shows that in lysates of conventional CD4 + T cells, galectin-10 is hardly detectable, while in the lysates from CD25 + Treg Cells a strong staining can be seen.
- the recombinant galectin-10 served as a positive control.
- the Western blot shown in FIG. 7 shows a representative result from seven independent experiments of cells from healthy healthy donors.
- this result shows that the antibody produced against the recombinantly produced galectin-10 also recognizes the natural galectin-10 protein.
- the proteome analyzes three different isoforms of the galectin-10 protein were detected and identified by mass spectrometry.
- Western blot analyzes after separation of the proteins from the lysate of human CD25 + Treg cells showed that the antibody stains all three isoforms of the protein.
- other very weak signals for two (four) further isoforms of the protein were obtained. These signals could be made to coincide with the silver-colored 2D gels (FIG. 3B).
- Example 18 Staining of conventional CD4 + T cells and CD25 + Treg cells with the rabbit anti-galectin-10 IgG
- the CD4 + CD25 + T cells which are isolated from the peripheral blood with antibody-coupled magnetic beads, are not a homogeneous cell population, but are composed of activated conventional CD4 + CD25 + T cells and CD25 + regulatory T cells.
- the staining of the cells can also provide information about the subcellular localization of galecin-10 in regulatory T cells.
- galectin-10 was evenly distributed in the cell, whereas in the CD25 + regulatory T-cells an accumulation of galectin-10 was evident on the plasma membrane.
- staining with antibodies or binders against Galectin-10 can be used to distinguish between conventional CD4 + T cells and CD25 + regulatory T cells.
- siRNA Inhibition of galectin-10 expression by siRNA abolishes the anergic state of these cells and reduces the ability to suppress.
- a suitable siRNA was used to inhibit galectin-10 expression in order to characterize the function of this protein within the CD25 + regulatory T cells.
- CD25 + regulatory T cells were transfected with Galectin-10 siRNA using nucleofection and the expression rate of Galectin-10 mRNA was quantified. 48 hours after the transfection, the galectin-10 mRNA content was most reduced. 9 shows the expression of galectin-10 mRNA reduced by galectin-10 siRNA.
- SC scrambled control: 0.5 ⁇ M and 1.0 ⁇ M).
- the CD25 + T cells transfected with siRNA were activated polyclonally with anti-CD3 and anti-CD28 monoclonal antibodies for 48 hours after maximum suppression of galectin-10 mRNA. The proliferation of these cells was monitored over a period of another 96 hours by the uptake of radioactively labeled thymidine.
- CD25 + regulatory T cells In order to investigate the influence of galectin-10 on the suppression properties of the CD25 + regulatory T cells, CD25 + regulatory T cells after transfection with Galectin-10 siRNA co-cultivated with conventional CD4 + T cells. The proliferation of the conventional CD4 + T cells was not changed. This means that the presence of galectin-10 protein in the CD25 + regulatory T cells is essential for the suppressive properties of the cells.
- T cells For the cryopreservation of T cells, a cell pellet in 50 ⁇ l tissue-Tek (Miles Diagnostic, Elkhart USA) taken up and suspended by gentle stirring. This cell suspension was deep-frozen in liquid nitrogen. A frozen drop was transferred to a cryoplastic mold and filled with tissue-tek and again frozen in liquid nitrogen. The sections were made with a layer thickness of 3 ⁇ m and the sections were then dried overnight at room temperature.
- Eosinophil lysophospholipase (Charcot-Leyden crystal protein). (Lysolecithin acylhydrolase) (CLC) (Galectin-10).
- Organism Homo sapiens
- Eosinophil lysophospholipase (Charcot-Leyden crystal protein homolog) (Lysolecithin acylhydrolase) (CLC) (Galectin-10).
- Organism Mus musculus
- NP_002296 beta-galactosidase binding lectin precursor Lectin, galactose-binding, soluble, 1; galectin
- Organism Homo sapiens
- Galectin-1 Beta-galactoside-binding lectin L-14-I
- St-Lac lectin 1 Sta lectin 1
- ACCESSION P16045, gi 1126172 MACGLVASNLNLKPGECLKVRGEVASDAKSFVLNLGKDSNNLCLHFNPRFNAHGDANTI
- SEQ ID No. 6 nucleic acid coding for an amino acid sequence according to SEQ ID No. 1 or SEQ ID No. 2 (Galectin 10):
- CD4 + CD25 + ß7 + CD25 + ß7 +
- conventional T cells CD4 +
- the arrows show the differential protein spots.
- Crystal Protein Isoform 1 (Spot 68) when comparing stimulated versus non-stimulated human regulatory T cells (CD4 + CD25 + and CD4 + CD25 + ß7 +) and conventional T cells (CD4 +).
- the arrows show the differential protein spots.
- CD4 + CD25 + ß7 + CD25 + ß7 +
- conventional T cells CD4 +
- the arrows show the differential protein spots.
- spot intensities of Galectin-10 (Spot 68) after separation of the total lysates from resting and 48 h activated conventional T cells and Treg.
- C Quantification of the relative content of FoxP3 mRNA in CD4 + T cells and CD25 + Tregs.
- cDNA samples were analyzed by quantitative real-time PCR using specific primers for FoxP3 or EFl- ⁇ . analyzed The relative levels of FoxP3 mRNA in each sample were normalized to the levels of EFl- ⁇ mRNA.
- FIG. 7 Western blot analysis of galectin-10 production in CD25 + Tregs and conventional CD4 + T cells
- B 2D PAGE Western blot analysis after 2D PAGE of the galectin 10 isoforms.
- the immunoblot was carried out analogously to that prepared after one-dimensional separation, but an alkaline phosphatase-conjugated secondary anti-rabbit antibody and BCIP / NBT were used as substrates for the visualization of the isoforms.
- the signals of the 2D gel Western blot were with a silver-colored 2D gel of the same T cells brought to cover. All three proteins previously identified as Galectin-10 were matched with the signals from the Western blot.
- FIG. 8 Staining of conventional CD4 + T cells and CD25 + Tregs with polyclonal anti-galectin-10 antibody
- Cryosectional preparations of activated conventional CD4 + T cells and CD25 + Treg cells were stained in a control batch with anti-CD3 antibodies. This surface protein is expressed on both conventional CD4 + T cells and Treg cells. Both cell populations were stained positively in the kyro sections.
- the secondary antibody anti-rabbit IgG served as a negative control.
- Galectin-10 was stained with the anti-Galectin-10 antiserum. It was clearly shown that galectin-10 can only be detected in Treg cells.
- the conventional T cells showed no positive staining.
- the preimmune serum served as a negative control.
- FIG. 9 Galectin-10 gene knock-out breaks through the anergy of human CD25 + Tregs
- B Proliferation 48 hours after the transfection, the T cells were stimulated with monoclonal anti-CD3 and anti-CD28 antibodies (l ⁇ g / ml + 2 ⁇ g / ml). The proliferation The T cells were measured after a further four days by adding 37 kBq / cavity 3H-Tdr for a further 16 hours.
- the suppressive properties of the Treg on conventional T cells after transfection of the Treg with galectin-10 siRNA were determined by measuring the proliferation of the conventional T cells. For this purpose, both cell types were cultivated in coculture. The proliferation of the Treg population was previously inhibited by radioactive radiation. Coculture experiments clearly showed a decrease in the suppressive properties of Treg after inhibition of galectin-10 transcription and thus protein production by siRNA.
- Figure 10 Purity control of the recombinantly produced human galectin-10 and the selectivity of the polyclonal anti-galectin-10 antiserum produced.
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Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04741062A EP1644487A1 (de) | 2003-07-15 | 2004-07-15 | Regulatorische-t-zellen enthaltend galectine zur therapie und diagnose von erkrankungen |
CA002532127A CA2532127A1 (en) | 2003-07-15 | 2004-07-15 | Regulatory t-cells containing galectins for the therapy and diagnosis of diseases |
US10/564,588 US20080118515A1 (en) | 2003-07-15 | 2004-07-15 | Regulatory T-Cells Containing Galectins for the Therapy and Diagnosis of Diseases |
AU2004257830A AU2004257830A1 (en) | 2003-07-15 | 2004-07-15 | Regulatory T-cells containing galectins for the therapy and diagnosis of diseases |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10333406.8 | 2003-07-15 | ||
DE10333406A DE10333406A1 (de) | 2003-07-15 | 2003-07-15 | T-regulatorische-Zellen enthaltend Galectine zur Therapie und Diagnose von Erkrankungen |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005007836A1 true WO2005007836A1 (de) | 2005-01-27 |
Family
ID=34042035
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2004/007890 WO2005007836A1 (de) | 2003-07-15 | 2004-07-15 | Regulatorische-t-zellen enthaltend galectine zur therapie und diagnose von erkrankungen |
Country Status (6)
Country | Link |
---|---|
US (1) | US20080118515A1 (de) |
EP (1) | EP1644487A1 (de) |
AU (1) | AU2004257830A1 (de) |
CA (1) | CA2532127A1 (de) |
DE (1) | DE10333406A1 (de) |
WO (1) | WO2005007836A1 (de) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006074891A2 (de) * | 2005-01-17 | 2006-07-20 | Protagen Ag | Regulatorische-t-zellen enthaltend proteine zur therapie und diagnose von erkrankungen |
EP1947501A2 (de) | 2002-08-09 | 2008-07-23 | E-Vision, LLC | Elektroaktives Kontaktlinsensystem |
WO2012012725A2 (en) | 2010-07-23 | 2012-01-26 | President And Fellows Of Harvard College | Methods of detecting diseases or conditions using phagocytic cells |
EP2700888A1 (de) | 2007-08-27 | 2014-02-26 | Areva Solar, Inc | Sonnenenergiekollektorsystem |
US10494675B2 (en) | 2013-03-09 | 2019-12-03 | Cell Mdx, Llc | Methods of detecting cancer |
US10626464B2 (en) | 2014-09-11 | 2020-04-21 | Cell Mdx, Llc | Methods of detecting prostate cancer |
US10934589B2 (en) | 2008-01-18 | 2021-03-02 | President And Fellows Of Harvard College | Methods of detecting signatures of disease or conditions in bodily fluids |
US10961578B2 (en) | 2010-07-23 | 2021-03-30 | President And Fellows Of Harvard College | Methods of detecting prenatal or pregnancy-related diseases or conditions |
US11111537B2 (en) | 2010-07-23 | 2021-09-07 | President And Fellows Of Harvard College | Methods of detecting autoimmune or immune-related diseases or conditions |
US11585814B2 (en) | 2013-03-09 | 2023-02-21 | Immunis.Ai, Inc. | Methods of detecting prostate cancer |
EP4303584A2 (de) | 2010-07-23 | 2024-01-10 | President and Fellows of Harvard College | Verfahren zur erkennung von anzeichen für krankheiten oder leiden in körperflüssigkeiten |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
MX2020010821A (es) * | 2018-04-13 | 2021-01-15 | Argenx Iip Bv | Anticuerpos contra galectina-10. |
WO2023072858A1 (en) * | 2021-10-25 | 2023-05-04 | Ellennbe Gmbh | Pharmaceutical composition and kit comprising an immunomodulatory substance for treating diseases |
Citations (2)
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US5242807A (en) * | 1989-11-01 | 1993-09-07 | Beth Israel Hospital Association | Recombinant gene encoding human Charcot-Leyden crystal protein |
WO1998015624A1 (en) * | 1996-10-09 | 1998-04-16 | Human Genome Sciences, Inc. | Galectin 8, 9, 10 and 10sv |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2002218919A1 (en) * | 2001-01-12 | 2002-07-24 | Mount Sinai Hospital | Compositions and methods for regulating receptor clustering |
-
2003
- 2003-07-15 DE DE10333406A patent/DE10333406A1/de not_active Ceased
-
2004
- 2004-07-15 EP EP04741062A patent/EP1644487A1/de not_active Withdrawn
- 2004-07-15 CA CA002532127A patent/CA2532127A1/en not_active Abandoned
- 2004-07-15 WO PCT/EP2004/007890 patent/WO2005007836A1/de active Search and Examination
- 2004-07-15 AU AU2004257830A patent/AU2004257830A1/en not_active Abandoned
- 2004-07-15 US US10/564,588 patent/US20080118515A1/en not_active Abandoned
Patent Citations (2)
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US5242807A (en) * | 1989-11-01 | 1993-09-07 | Beth Israel Hospital Association | Recombinant gene encoding human Charcot-Leyden crystal protein |
WO1998015624A1 (en) * | 1996-10-09 | 1998-04-16 | Human Genome Sciences, Inc. | Galectin 8, 9, 10 and 10sv |
Non-Patent Citations (13)
Title |
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DATABASE EMBL 30 May 2003 (2003-05-30), XP002310845, retrieved from EBI Database accession no. L01664.1 * |
DATABASE UniProt 1 June 1994 (1994-06-01), XP002310846, retrieved from EBI Database accession no. Q05315 * |
DIECKMANN D ET AL: "Ex vivo isolation and characterization of CD4(+)CD25(+) T cells with regulatory properties from human blood.", THE JOURNAL OF EXPERIMENTAL MEDICINE. 4 JUN 2001, vol. 193, no. 11, 4 June 2001 (2001-06-04), pages 1303 - 1310, XP002310840, ISSN: 0022-1007 * |
DVORAK A M ET AL: "Ultrastructural localization of Charcot-Leyden crystal protein (lysophospholipase) to intracytoplasmic crystals in tumor cells of primary solid and papillary epithelial neoplasm of the pancreas.", LABORATORY INVESTIGATION; A JOURNAL OF TECHNICAL METHODS AND PATHOLOGY. MAY 1990, vol. 62, no. 5, May 1990 (1990-05-01), pages 608 - 615, XP009041661, ISSN: 0023-6837 * |
DVORAK A M ET AL: "Ultrastructural localization of the Charcot-Leyden crystal protein (lysophospholipase) to granules and intragranular crystals in mature human basophils.", LABORATORY INVESTIGATION; A JOURNAL OF TECHNICAL METHODS AND PATHOLOGY. APR 1989, vol. 60, no. 4, April 1989 (1989-04-01), pages 557 - 567, XP009041660, ISSN: 0023-6837 * |
GOLIGHTLY L M ET AL: "Charcot-Leyden crystal protein in the degranulation and recovery of activated basophils.", JOURNAL OF LEUKOCYTE BIOLOGY. APR 1992, vol. 51, no. 4, April 1992 (1992-04-01), pages 386 - 392, XP009041662, ISSN: 0741-5400 * |
JONULEIT H ET AL: "Identification and functional characterization of human CD4(+)CD25(+) T cells with regulatory properties isolated from peripheral blood.", THE JOURNAL OF EXPERIMENTAL MEDICINE. 4 JUN 2001, vol. 193, no. 11, 4 June 2001 (2001-06-04), pages 1285 - 1294, XP002310837, ISSN: 0022-1007 * |
NG W F ET AL: "Human CD4(+)CD25(+) cells: a naturally occurring population of regulatory T cells.", BLOOD. 1 NOV 2001, vol. 98, no. 9, 1 November 2001 (2001-11-01), pages 2736 - 2744, XP002310841, ISSN: 0006-4971 * |
PICCIRILLO C A ET AL: "Cutting edge: control of CD8+ T cell activation by CD4+CD25+ immunoregulatory cells.", JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 1 AUG 2001, vol. 167, no. 3, 1 August 2001 (2001-08-01), pages 1137 - 1140, XP002310838, ISSN: 0022-1767 * |
SEDDON B ET AL: "The third function of the thymus.", IMMUNOLOGY TODAY. FEB 2000, vol. 21, no. 2, February 2000 (2000-02-01), pages 95 - 99, XP002310839, ISSN: 0167-5699 * |
See also references of EP1644487A1 * |
SURI-PAYER E ET AL: "CD4+CD25+ T cells inhibit both the induction and effector function of autoreactive T cells and represent a unique lineage of immunoregulatory cells.", JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 1 FEB 1998, vol. 160, no. 3, 1 February 1998 (1998-02-01), pages 1212 - 1218, XP002310842, ISSN: 0022-1767 * |
THORNTON A M ET AL: "CD4+CD25+ immunoregulatory T cells suppress polyclonal T cell activation in vitro by inhibiting interleukin 2 production.", THE JOURNAL OF EXPERIMENTAL MEDICINE. 20 JUL 1998, vol. 188, no. 2, 20 July 1998 (1998-07-20), pages 287 - 296, XP002310843, ISSN: 0022-1007 * |
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WO2006074891A3 (de) * | 2005-01-17 | 2007-01-04 | Protagen Ag | Regulatorische-t-zellen enthaltend proteine zur therapie und diagnose von erkrankungen |
WO2006074891A2 (de) * | 2005-01-17 | 2006-07-20 | Protagen Ag | Regulatorische-t-zellen enthaltend proteine zur therapie und diagnose von erkrankungen |
EP2711651A2 (de) | 2007-08-27 | 2014-03-26 | Areva Solar, Inc | Verfahren zur Installation eines erhobenen Solarempfängers in einem Sonnenenergiekollektorsystem |
EP2700888A1 (de) | 2007-08-27 | 2014-02-26 | Areva Solar, Inc | Sonnenenergiekollektorsystem |
EP2700887A2 (de) | 2007-08-27 | 2014-02-26 | Areva Solar, Inc | Vertikale Stützstruktur für Sonnenenergiekollektorsystem |
US11001894B2 (en) | 2008-01-18 | 2021-05-11 | President And Fellows Of Harvard College | Methods of detecting signatures of disease or conditions in bodily fluids |
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US10961578B2 (en) | 2010-07-23 | 2021-03-30 | President And Fellows Of Harvard College | Methods of detecting prenatal or pregnancy-related diseases or conditions |
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US10626464B2 (en) | 2014-09-11 | 2020-04-21 | Cell Mdx, Llc | Methods of detecting prostate cancer |
Also Published As
Publication number | Publication date |
---|---|
US20080118515A1 (en) | 2008-05-22 |
DE10333406A1 (de) | 2005-02-10 |
CA2532127A1 (en) | 2005-01-27 |
AU2004257830A1 (en) | 2005-01-27 |
EP1644487A1 (de) | 2006-04-12 |
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