WO2012039161A1 - 新規血管炎の検査方法および検査用試薬 - Google Patents
新規血管炎の検査方法および検査用試薬 Download PDFInfo
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- WO2012039161A1 WO2012039161A1 PCT/JP2011/060970 JP2011060970W WO2012039161A1 WO 2012039161 A1 WO2012039161 A1 WO 2012039161A1 JP 2011060970 W JP2011060970 W JP 2011060970W WO 2012039161 A1 WO2012039161 A1 WO 2012039161A1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/53—Immunoassay; Biospecific binding assay; Materials therefor
- G01N33/564—Immunoassay; Biospecific binding assay; Materials therefor for pre-existing immune complex or autoimmune disease, i.e. systemic lupus erythematosus, rheumatoid arthritis, multiple sclerosis, rheumatoid factors or complement components C1-C9
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/68—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving proteins, peptides or amino acids
- G01N33/6854—Immunoglobulins
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2800/00—Detection or diagnosis of diseases
- G01N2800/32—Cardiovascular disorders
- G01N2800/328—Vasculitis, i.e. inflammation of blood vessels
Definitions
- the present invention relates to a novel vasculitis test method and test reagent.
- MPO-ANCA Anti-Neutrophil Cytoplasmic Antibody
- MPO-ANCA Anti-Neutrophil Cytoplasmic Antibody
- MPO-ANCA Anti-Neutrophil Cytoplasmic Antibody
- AGA allergic vasculitis
- SCS Straus syndrome
- MPO-ANCA titers in the serum of these patients correlate with disease activity, so MPO-ANCA is used as a specific marker for these diseases in diagnosis and treatment decisions (For example, refer nonpatent literature 1).
- MPO-ANCA anti-rmMPO antibody
- mGEC mouse glomerular endothelial cells
- MPO-ANCA factors involved in the pathogenesis of vasculitis other than MPO-ANCA that is clinically used for the diagnosis of vasculitis, etc.
- diagnosis and treatment judgment by MPO-ANCA does not necessarily completely reflect the true pathological condition. Therefore, identifying factors other than MPO-ANCA can be performed by MPO-ANCA. It has the potential to provide new clinical markers that complement or replace it, and its clinical significance is extremely important.
- an object of the present invention is to provide a new marker for vasculitis that replaces MPO-ANCA.
- MO-ANCA autoantibodies to moesin
- Protein M described above is moesin.
- This moesin membrane-organizing extension spike protein
- cDNA cloning shows that human moesin usually consists of 576 amino acids (Lankes, W. T. et al., Proc. Natl. Acad. Sci. U. S. A., 1991; 88: 8297-8301).
- an antibody that specifically recognizes moesin is found in the serum of patients with vasculitis.
- a method for examining vasculitis comprising detecting an antibody specifically recognizing moesin in a biological sample.
- the biological sample is preferably a serum sample
- the antibody is preferably an autoantibody against moesin.
- the test method may further include detecting an antibody (for example, MPO-ANCA) that specifically recognizes myeloperoxidase in the biological sample.
- an antibody for example, MPO-ANCA
- vasculitis to be examined by the above examination methods is microscopic polyangiitis (MPA), allergic granulomatous vasculitis (Churg Strauss syndrome (CSS)), Wegener's granulomatosis, Guillain-Barre syndrome Thrombotic thrombocytopenic purpura (TTP), idiopathic thrombocytopenic purpura, IgA nephropathy, rapidly progressive glomerulonephritis, idiopathic interstitial pneumonia, sarcoidosis, diffuse panbronchiolitis, Behcet's disease, Systemic lupus erythematosus (SLE), Sjogren's syndrome, Takayasu disease (aortitis syndrome), Buerger's disease, polyarteritis nodosa, rheumatoid arthritis, temporal arteritis, antiphospholipid syndrome, scleroderma, eosinophilic
- a reagent for vasculitis examination which contains a substance that detects an antibody specifically recognizing moesin in a biological sample.
- the substance is preferably moesin and / or a partial peptide thereof.
- the test reagent further includes a labeled secondary antibody that recognizes the antibody.
- a new disease state marker for vasculitis can be provided in place of MPO-ANCA.
- a new vasculitis marker for example, anti-moesin antibody
- MPO-ANCA which is a conventionally known vasculitis marker
- the presence or absence of a correlation with the pathology of vasculitis and the marker Based on the information such as the quantitative value, it is possible to subdivide the pathology of vasculitis and determine the treatment effect.
- an Example it is a figure which shows the result of having performed the Western blotting in order to confirm the expression of moesin in mGEC.
- the anti-moesin antibody (MO-ANCA) contained in the serum of a patient with ANCA-related vasculitis that is positive for MPO-ANCA recognizes the moesin protein, and the anti-moesin antibody was used as a primary antibody. It is a figure which shows the result confirmed by the western blotting method. In an Example, it is a graph which shows the result of having quantified the anti- moesin antibody (MO-ANCA) and MPO-ANCA in the serum sample extract
- it is a graph which shows the result of having analyzed about the relationship between the quantitative result of an anti- moesin antibody (MO-ANCA) and the quantitative result of MPO-ANCA in a patient's serum sample.
- MO-ANCA an anti- moesin antibody
- it is a graph which shows the result of having analyzed about the relationship between the quantitative result of an anti- moesin antibody (MO-ANCA) and the quantitative result of MPO-ANCA in a patient's serum sample.
- it is a graph which shows the result of having measured the MPO-ANCA titer and the anti- moesin antibody titer in the plasma of a vasculitis patient by ELISA method, and performing the multiple comparison of them.
- FIG. 10 is a graph showing the results of comparing the serum creatinine values for each of the four regions shown in FIG. 9.
- it is a graph which shows the result of having measured the cytokine chemokine production profile from the healthy person neutrophil by the anti-moesin antibody stimulation.
- it is a graph which shows the result of having measured the cytokine * chemokine production profile from the healthy person monocyte by anti- moesin antibody stimulation.
- the first aspect of the present invention is a method for examining vasculitis, comprising detecting an antibody specifically recognizing moesin in a biological sample.
- the subject to which the inspection method of the present invention can be applied is not particularly limited as long as it is an animal, and examples thereof include mammals.
- Mammals include, for example, primates, laboratory animals, livestock, pets and the like, and are not particularly limited. Specifically, for example, humans, monkeys, rats, mice, rabbits, horses, cows , Goats, sheep, dogs, cats and the like.
- the target animal is a human.
- the biological sample that can be used in the method of the present invention is not particularly limited, and examples thereof include animal-derived tissues, cells, cell extract components, body fluids, and the like to be examined.
- Tissues include spleen, lymph nodes, kidneys, lungs, heart, liver, etc.
- Cells include spleen cells, lymphocytes, neutrophils, monocytes, macrophages, dendritic cells, antibody-producing cells, etc. as body fluids Examples include blood, serum, plasma, urine, sweat, spinal fluid and the like.
- the biological sample is preferably a body fluid, particularly serum / plasma or urine.
- vasculitis There is no particular limitation on the specific form of “vasculitis” examined in the examination method of the present invention, and any disease, symptom, disorder, etc. that can be recognized as “vasculitis” in this technical field can be included.
- vasculitis include, but are not limited to, microscopic polyangiitis (MPA), Wegener granulomatosis, allergic granulomatous vasculitis (AGA), CSS, and the like.
- the inspection method of the present invention is an inspection method mainly for microscopic polyangiitis (MPA) and CSS, and more preferably MPA.
- Moesin recognized by an antibody is a protein belonging to a protein family (Ezrin Radixin Moesin: ERM family) generally bound to the cytoskeleton. In humans, it usually consists of 577 amino acids.
- the moesin is not particularly limited as long as it is derived from the above-mentioned mammals, but is preferably human-derived moesin. Examples of human moesin include a protein consisting of the amino acid sequence of GenBank accession number NM002444, or a natural allelic variant thereof.
- the class of the antibody is not particularly limited, and may be any of IgG, IgD, IgE, IgA, sIgA, IgM and the like.
- Antibody binding fragments Fab, Fab ′, F (ab ′) 2 etc. are also included in the “antibody” as long as they specifically bind to moesin.
- the antibody detected in the present invention is preferably an autoantibody that specifically recognizes its own moesin.
- a human antibody that specifically recognizes human moesin is preferably detected.
- the biological sample is particularly preferably a serum sample.
- moesin may be part of MPO-ANCA because there are also sequences that cross-react with MPO.
- a method for detecting an antibody specifically recognizing moesin in a biological sample a method known per se can be used, and is not particularly limited, but a reaction (for example, an antigen-antibody reaction) occurring in a liquid phase or a solid phase is directly performed.
- a measurement method, a method of measuring inhibition of an immune reaction by adding an inhibitor, and the like can be used.
- Examples of the method include a method in which moesin or a partial peptide thereof is brought into contact with a biological sample, and specific binding of the antibody in the biological sample to moesin or the partial peptide is detected directly or indirectly.
- the moesin used in the above method is not particularly limited as long as it can be specifically recognized by the anti-moesin antibody that is an autoantibody of the animal to be examined among the above-mentioned moesin proteins, but preferably derived from the animal to be examined. Moesin.
- the test subject is human, it is preferable to use human moesin (for example, a protein consisting of the amino acid sequence of GenBank accession number NM002444, or a natural allelic variant thereof).
- the partial peptide of moesin is not particularly limited as long as it is a partial peptide containing an antigenic determinant recognized by the anti-moesin antibody detected in the present invention.
- an antigenic determinant of a protein antigen is composed of at least 5 to 6 amino acid residues
- moesin containing at least 5 or more, preferably 8 or more, more preferably 10 or more amino acid residues can be used in the present invention.
- Moesin or its partial peptide may be modified.
- modifications include modifications with phosphoric acid, sugars or sugar chains, phospholipids, lipids, nucleotides, and the like.
- the moesin or its partial peptide used in the present invention can be obtained from the above-mentioned humans and other animals by a known method.
- moesin can be purified using a moesin-expressing tissue such as spleen, uterus, kidney or the like, or a cultured cell thereof, or a moesin-expressing cell line such as UT-7.
- a moesin-expressing tissue such as spleen, uterus, kidney or the like
- a cultured cell thereof or a moesin-expressing cell line such as UT-7.
- chromatography such as reverse phase chromatography or ion exchange chromatography. it can.
- the moesin of the present invention or a partial peptide thereof is obtained by culturing a transformant introduced with an expression vector containing a nucleic acid encoding moesin or a partial peptide thereof to produce moesin or a partial peptide thereof. It can also be produced by separating and purifying the partial peptide.
- Moesin or a partial peptide thereof used in the present invention can also be produced by a known peptide synthesis method.
- a peptide synthesis method may be, for example, either a solid phase synthesis method or a liquid phase synthesis method.
- Moesin or a partial peptide thereof can be produced by condensing a partial peptide or amino acid capable of constituting moesin with the remaining portion and removing the protective group when the product has a protective group.
- the partial peptide of moesin used in the present invention can also be produced by cleaving moesin obtained by any of the methods described above or below with an appropriate peptidase.
- Moesin or a partial peptide thereof may be one in which an appropriate tag is linked for the purpose of facilitating purification work and the like.
- tags include immunoglobulin Fc region, maltose binding protein (MBP), glutathione-S-transferase (GST), c-Myc tag, FLAG tag, HA tag, His tag and the like.
- An agglutination reaction in which moesin or a partial peptide (antigen) thereof is coated on the surface of blood cells or gelatin particles, and an antigen-antibody reaction is caused by adding a biological sample to form an aggregate.
- Double immune diffusion in which an extract containing moesin or a partial peptide thereof and a biological sample are diffused in an agar gel to cause a precipitation reaction; (3) After immobilizing purified moesin or its partial peptide on a plate and adding a biological sample to react, i) ELISA method in which a secondary antibody conjugated with an enzyme is further reacted to detect color development of the substrate with a spectrophotometer; ii) a fluorescence immunoassay (FIA) in which a secondary antibody conjugated with a fluorescent dye is further reacted to measure fluorescence development; or iii) a chemiluminescence immunoassay (CLIA) in which a chemiluminescent substance is further reacted with a secondary antibody conjugated with a chemiluminescent substance to measure chemiluminescence; (4) An immunoturbidimetric method in which the surface of latex particles, glass beads, or the like is coated with
- Immuno-comparison method to measure the scattered light
- Radioimmunoassay in which moesin or a partial peptide thereof is labeled with a radioisotope and reacted with a biological sample to detect an antigen-antibody reaction
- a frozen thin section or cell of a tissue containing moesin or a partial peptide thereof is affixed on a glass slide, reacted by dropping a biological sample on the section, and further reacted with a secondary antibody bound to a fluorescent dye.
- a fluorescent antibody method for detecting fluorescence under a microscope (7) A surface plasmon resonance analysis method for examining affinity by immobilizing moesin or its partial peptide on a chip and flowing a biological sample; (8) Western blotting in which moesin or a partial peptide thereof in a gel separated and developed by electrophoresis is transferred to a nitrocellulose membrane and reacted with a biological sample to detect an antigen-antibody reaction.
- the detection means is an ELISA method
- detection and / or quantification can be performed as follows. That is, according to a conventional ELISA method, for example, a biological sample is provided to each well of a multiwell plate coated with moesin or a partial peptide thereof, and an enzyme-labeled secondary antibody is added to each well for reaction, and an enzyme substrate is added. After the addition, the antigen-antibody reaction can be detected and / or quantified by detecting and / or quantifying the product produced by the enzyme.
- the enzyme used for labeling may be any conventional enzyme commonly used in ELISA methods, such as peroxidase, alkaline phosphatase, ⁇ -D-galactosidase, glucose oxidase, luciferase, esterase, ⁇ -D-glucuronidase and the like.
- Peroxidase or alkaline phosphatase can be used publicly in view of being able to achieve more sensitive and stable detection.
- the enzyme substrate can be appropriately selected depending on the enzyme used.
- 3,3 ′, 5,5′-tetramethylbenzidine or the like is used in the case of peroxidase, and paranitrophenyl phosphate in the case of alkaline phosphatase. Sodium or the like is used.
- the detection and / or quantification of the product produced by the enzyme can be performed by measuring the absorbance of the product. For example, when 3,3 ′, 5,5′-tetramethylbenzidine is used as the enzyme substrate, the absorbance at 655 nm may be measured.
- the detection means is a fluorescence immunoassay (FIA)
- fluorescent dye examples include FITC (Fluorescein Isothiocyanate), PE (phycoerythrin), APC (Allophycocyanin), Cy-3, Cy-5, and the like.
- the detection means is a chemiluminescence immunoassay (CLIA)
- examples of chemiluminescence include acridinium esters.
- an antibody that specifically recognizes moesin When an antibody that specifically recognizes moesin is detected in a biological sample, it can be determined that the subject from which the biological sample is derived has a high possibility of developing vasculitis. In this case, the higher the antibody titer that specifically recognizes moesin in the biological sample, the higher the possibility of developing / inducing vasculitis. Conversely, when an antibody that specifically recognizes moesin is not detected in the biological sample, it can be determined that the subject from which the biological sample is derived has a low possibility of developing vasculitis.
- the judgment criteria are not limited to detection / non-detection of antibodies.
- an average value of antibody amount 3 ⁇ SD that specifically recognizes moesin in a biological sample derived from a healthy subject is set as a cut-off value, and if the cut-off value is exceeded, the subject develops vasculitis.
- the subject is less than or equal to the cut-off value, it may be determined that the subject is less likely to develop vasculitis.
- the test method of the present invention may further include detecting an antibody that specifically recognizes myeloperoxidase (MPO) in a biological sample.
- MPO myeloperoxidase
- the above-mentioned antibody includes, for example, MPO-ANCA, and the detection method thereof can be employed in the same manner as described above for the detection of an antibody specifically recognizing moesin. Omitted.
- vasculitis there is no particular limitation on the vasculitis to be classified, and the above-mentioned and other conventionally known vasculitis can be classified, but as an example, small vasculitis and middle vasculitis Those that merge.
- Such vasculitis includes, for example, allergic granulomatous vasculitis (Charg Strauss syndrome; CSS), Wegener's granulomatosis (WG), microscopic polyangiitis (MPA), Kawasaki disease, rheumatoid arthritis, SLE , Due to Behcet's disease.
- each of the two antibodies mentioned above can be achieved by microscopic polyangiitis, allergic granulomatous vasculitis (Charg Strauss syndrome (CSS)), or Wegener's granulomatosis (especially microscopic polyplasia). It is preferably used as a reactive vasculitis disease state marker for the purpose of subdividing the disease state of vasculitis). In particular, it can be effectively used as a disease state marker for determining remission, recurrence, and treatment resistance by treatment for these vasculitis.
- Cardiovascular disease high blood pressure, cerebral infarction, myocardial infarction, stroke, aneurysm
- multiple sclerosis Guillain-Barre syndrome
- chronic inflammatory demyelinating polyneuritis lysosomal disease
- idiopathic thrombosis thrombotic platelets Reduced purpura (TTP)
- idiopathic thrombocytopenic purpura IgA nephropathy, rapidly progressive glomerulonephritis, refractory nephrotic syndrome, idiopathic interstitial pneumonia, sarcoidosis, diffuse panbronchiolitis, autoimmunity Hepatitis, Behcet's disease, systemic lupus erythemato
- an examination reagent for vasculitis containing a substance that detects an antibody that specifically recognizes moesin in a biological sample.
- the “substance” contained in the test reagent of the present embodiment is not particularly limited as long as it can achieve detection of an antibody that specifically recognizes moesin in the above-described method, but preferably moesin or a partial peptide thereof It is.
- the anti-moesin antibody detected in the present invention is an antibody group that recognizes a plurality of antigenic determinants, the antibodies specifically recognizing each of the many antigenic determinants present in moesin are exhausted.
- the substance is preferably moesin (full length of protein).
- Moesin or a partial peptide thereof may be provided in the form of powder, solution, etc., and blood cells, gelatin particles, plates, latex particles, glass beads, glass slides, chips, microtiter plates, centrifuge tubes, microbeads, membranes, It may be provided in a form supported on an insoluble carrier such as a paper disk. In the carrier on the container, moesin or a partial peptide thereof is carried at the site where the solution held on the carrier comes into contact, for example, in the case of a microtiter plate. It should be noted that moesin or a partial peptide thereof can be supported on an insoluble carrier by a known method.
- vasculitis can be easily tested by the method described above.
- the test reagent of the present invention can also be a vasculitis test kit further including a reagent used in the detection method described above.
- a reagent used in the detection method described above include a buffer for diluting the reagent and biological sample, a fluorescent dye, a reaction vessel, a positive control, a negative control, and an instruction document describing a test protocol. These elements can be mixed in advance if necessary.
- the test for vasculitis of the present invention is simplified, and it is very useful for early treatment policy determination.
- mGEC mouse glomerular endothelial cells isolated from C57BL / 6 was used. To maintain the cells, the culture supernatant of confluent cells was removed and washed with PBS, 1 ml of trypsin / PBS (Gibco) was added, warmed for about 5 minutes, and then gently tapped to peel off the cells. Next, the cells were collected, diluted with a culture solution, and cultured in a collagen-coated 10 cm ⁇ culture dish (Iwaki) at 37 ° C. in a 5% CO 2 incubator.
- Iwaki collagen-coated 10 cm ⁇ culture dish
- RPMI-1640 (Sigma) [10% inactivated FBS (Sigma), 5 ng / ml vascular endothelial growth factor (VEGF) (Peprotech), 10 ng / ml epidermal growth factor (EGF) (Sigma), 10 ng / ml fibroblast growth factor basic (bFGF) (Sigma), 20 U / ml heparin (Ajinomoto), 1 ⁇ g / ml hydrocortisone (Sigma), 50 U / ml penicillin, 50 ⁇ g / ml streptomycin (Gibco)].
- VEGF vascular endothelial growth factor
- EGF epidermal growth factor
- bFGF fibroblast growth factor basic
- mice myeloperoxidase antibody (rabbit anti-rmMPO antibody)
- Escherichia coli is transformed with a plasmid containing the mouse (C57BL / 6) MPO cDNA, cultured according to a conventional method, and then expressed recombinant
- the protein mouse MPO (rmMPO) was recovered.
- This rmMPO is composed of the L chain and H chain of mouse MPO labeled with His tag.
- rabbits were immunized with the purified rmMPO obtained, and the IgG fraction of the obtained polyclonal antibody was isolated from serum using protein A to obtain anti-rmMPO IgG.
- the control rabbit IgG was obtained by the same method as described above without immunization with rmMPO.
- the membrane was washed three times with 0.05% Tween 20 / TBS, and then reacted with an HRP-labeled secondary antibody (buffer: 5% BSA / 0.05% Tween 20 / TBS) at room temperature for 1.5 hours. Thereafter, the membrane was washed 3 times with 0.05% Tween 20 / TBS and reacted with ECL (GE healthcare) solution for 1 minute. Finally, the film was exposed to X-ray film (GE healthcare) in a dark room and developed with a developing machine (Fuji Film Co., Ltd.). The result is shown in FIG. As shown in FIG. 1, 68 kDa moesin was detected, and it was confirmed that moesin was expressed in mGEC cells.
- Two-dimensional electrophoresis 4.1 Preparation of cell lysate
- the mGEC cells cultured in the above were collected using a cell scraper in PBS and centrifuged to form a pellet.
- the pelleted cells were washed with PBS, then lysed in RIPA buffer (150 mM NaCl, 10 mM Tris-HCl, 0.1% SDS, 1.0% Triton X-100, 1.0% Sodium deoxycholate, 5 mM EDTA), and the cells were sonicated. Was disrupted to obtain a cell lysate.
- the membrane was washed three times with 0.05% Tween 20 / TBS, and then reacted with an HRP-labeled secondary antibody (buffer: 5% BSA / 0.05% Tween 20 / TBS) at room temperature for 1.5 hours. Thereafter, the membrane was washed 3 times with 0.05% Tween 20 / TBS and reacted with ECL (GE healthcare) solution for 1 minute. Finally, the film was exposed to X-ray film (GE healthcare) in a dark room and developed with a developing machine (Fuji Film Co., Ltd.). The result of development is shown in FIG. As shown in FIG. 3, a spot was confirmed at a position of molecular weight 67 kDa and pI6.2.
- the mGEC cells cultured in the above were seeded at a concentration of 4 ⁇ 10 3 cells / well in a collagen-coated 96-well plate (Iwaki). After culturing for one day, the cells were washed with warmed RPMI-1640 (test medium) containing 1% FBS, and the test medium was newly added and cultured for 1 hour. Next, an antibody for stimulating cells and TNF- ⁇ were diluted with a test medium, added to the well, and cultured for 6 hours. The cells were then washed 3 times with PBS and fixed with 0.2% glutaraldehyde at 4 ° C. for 5 minutes.
- Non-specific binding is caused by Dulbecco's phosphate buffered saline containing bovine serum albumin (BSA)-0.05% Tween 20 (Sigma, code: 30-5450-5) (PBST) (1% BSA / PBST) Blocking was overnight at 4 ° C., followed by addition of 0.5 ⁇ g / ml rat anti-mouse ICAM-1 monoclonal antibody (eBioscience) and reaction at room temperature for 1.5 hours. Subsequently, it was reacted with an HRP-labeled anti-rat IgG antibody (Sigma) for 1.5 hours at room temperature. For color development, 1-Step TM Turbo TMB-ELISA (Pierce) was used, and after the reaction was stopped with 0.5 M sulfuric acid (Wako Pure Chemical Industries), the absorbance was measured at 450 nm and quantified.
- BSA bovine serum albumin
- PBST 1% BSA / PBST
- the following antibodies were used for cell stimulation.
- Rat anti-mouse moesin monoclonal antibody (Sanko Junyaku) 10 ⁇ g / ml, anti-rmMPO antibody 100 ⁇ g / ml, control rabbit IgG 100 ⁇ g / ml, control rat IgG2a (R & D® systems) 10 ⁇ g / ml.
- the membrane was washed 3 times with 0.05% Tween 20 / TBS, and then with an HRP-labeled secondary antibody (anti-human IgG antibody: buffer: 5% BSA / 0.05% Tween 20 / TBS) at room temperature for 1.5 hours. Reacted. Thereafter, the membrane was washed 3 times with 0.05% Tween 20 / TBS and reacted with ECL (GE healthcare) solution for 1 minute. Finally, the film was exposed to X-ray film (GE healthcare) in a dark room and developed with a developing machine (Fuji Film Co., Ltd.).
- the anti-moesin antibody (MO-ANCA) contained in the patient's serum was confirmed to recognize the moesin protein by Western blotting using the anti-moesin antibody as a primary antibody (FIG. 5).
- Pt A anti-M high / MPO-ANCA low
- Pt B anti-M low / MPO high
- the two bars at the right end shown in FIG. 6 correspond to the healthy person control.
- MPO-ANCA anti-moesin antibody
- Pt-B anti-moesin antibody
- MPA anti-moesin antibody
- a new standard for subclassifying vasculitis such as MPA can be provided by utilizing the knowledge of the present invention and combining it with a test result based on the existing MPO-ANCA.
- the pathology of vasculitis and the effects of various treatments on this are further refined based on the presence and amount of MO-ANCA and MPO-ANCA in patient serum. Can be classified. Ultimately, it also contributes to better treatment planning and improved patient prognosis.
- MPO-ANCA titer and anti-moesin antibody titer were determined by the same method (ELISA method) as in 9.1 above. Measured and made multiple comparisons. The results are shown in FIG.
- the present invention provides a novel vasculitis examination means different from the conventionally used technique using MPO-ANCA, and can be said to be a technique with extremely high clinical advantage.
- the anti-moesin antibody single positive group showed a significantly higher serum creatinine level than both the negative group and MPO-ANCA single high titer group.
- neutrophils were isolated from plasma samples of healthy individuals and suspended in 10% FBS / RPMI at 2 ⁇ 10 6 cells / ml.
- each of neutrophils was seeded in a 96-well plate.
- 100 ⁇ L each of mouse monoclonal anti-moesin 2287 antibody (20 ⁇ g / ml) was added, and after culturing at 37 ° C. for 24 hours in a CO 2 incubator, the plate was centrifuged at 1000 ⁇ g for 10 minutes at 20 ° C. Qing was recovered.
- MCP-1 and IL-8 showed high values in the culture supernatant 24 hours after stimulation of neutrophils with anti-moesin antibody. This suggested that the anti-moesin antibody and IL-8 interacted in vivo.
- IL-8 is a cytokine with neutrophil chemotaxis. It is a cytokine that enhances inflammation through migration of neutrophils to the inflamed area and increased mobilization of neutrophils into the blood. is there. In other words, anti-moesin antibodies have been shown to activate neutrophils and induce the production of inflammatory cytokines.
- PBMC peripheral blood mononuclear cells
- mouse monoclonal anti-moesin 2287 antibody 10 ⁇ g / ml was added to each well containing the adherent monocytes obtained above, and cultured at 37 ° C. for 24 hours in a CO 2 incubator. The mixture was centrifuged at 20 ° C. for 10 minutes, and the supernatant was collected.
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Abstract
Description
(1)血球やゼラチン粒子の表面に、モエシンまたはその部分ペプチド(抗原)を被覆し、生体試料を加えることにより抗原抗体反応を起こさせ、凝集塊を作らせる凝集反応;
(2)モエシンまたはその部分ペプチドを含む抽出液と生体試料とを寒天ゲル内で拡散させて沈降反応を起こさせる二重免疫拡散法(DID:double immune diffusion:オクタロニー法);
(3)精製したモエシンまたはその部分ペプチドをプレートに固相化し、生体試料を加えて反応させた後、
i)酵素と結合した二次抗体をさらに反応させて、基質の発色を分光光度計で検出するELISA法;
ii)蛍光色素と結合した二次抗体をさらに反応させて、蛍光発色を測定する蛍光免疫測定法(FIA);または、
iii)化学発光物質と結合した二次抗体をさらに反応させて、化学蛍光(ケミルミネッセンス)を測定する化学発光免疫測定法(CLIA);
(4)ラテックス粒子やガラスビーズなどの表面をモエシンまたはその部分ペプチドで被覆し、当該粒子が抗体と遭遇したときに起こる凝集反応液に光をあて、その透過光を測定する免疫比濁法またはその散乱光を測定する免疫比朧法(ネフロメトリー法);
(5)モエシンまたはその部分ペプチドを放射性同位元素で標識し、生体試料と反応させ抗原抗体反応を検出するラジオイムノアッセイ;
(6)モエシンまたはその部分ペプチドを含む組織の凍結薄切片または細胞をスライドガラス上に貼り付け、生体試料を切片上に滴下することにより反応させ、蛍光色素と結合した二次抗体とさらに反応させて、蛍光を顕微鏡下で検出する蛍光抗体法;
(7)モエシンまたはその部分ペプチドをチップ上に固定して生体試料を流すことにより親和性をみる表面プラズモン共鳴解析法;
(8)電気泳動により分離展開したゲル内のモエシンまたはその部分ペプチドを、ニトロセルロース膜等に転写し、生体試料と反応させ抗原抗体反応を検出するウェスタンブロッティング法。
循環器病疾患(高血圧、脳梗塞、心筋梗塞、脳卒中、動脈瘤)、多発性硬化症、ギラン・バレー症候群、慢性炎症性脱髄性多発神経炎、ライソゾーム病、特発性血栓症、血栓性血小板減少性紫斑病(TTP)、特発性血小板減少性紫斑病、IgA腎症、急速進行性糸球体腎炎、難治性ネフローゼ症候群、特発性間質性肺炎、サルコイドーシス、びまん性汎細気管支炎、自己免疫性肝炎、ベーチェット病、全身性エリテマトーデス(SLE)、シェーグレン症候群、高安病(大動脈炎症候群)、バージャー病、結節性多発動脈炎、悪性関節リウマチ、側頭動脈炎、抗リン脂質抗体症候群、強皮症、好酸球性筋膜炎、天疱瘡。
C57BL/6から単離したmGECを用いた。細胞の維持のため、コンフルエントの状態の細胞の培養上清を取り除いてPBSで洗浄した後、トリプシン/PBS(Gibco)を1ml加えて、約5分間温めたのち、軽く叩いて細胞を剥がした。次に細胞を回収し、培養液で希釈してコラーゲンコート10cmφ培養皿(Iwaki)で、37℃、5%CO2インキュベーターにて培養した。なお、培養液には、RPMI-1640(Sigma)[10%非働化FBS(Sigma)、5ng/ml vascular endothelial growth factor(VEGF)(Peprotech)、10ng/ml epidermal growth factor(EGF)(Sigma)、10ng/ml fibroblast growth factor basic(bFGF)(Sigma)、20U/ml ヘパリン(味の素)、1μg/ml ハイドロコルチゾン(Sigma)、50U/ml ペニシリン、50μg/ml ストレプトマイシン(Gibco)を含む]を用いた。
マウス(C57BL/6)のMPO cDNAを含むプラスミドを用いて大腸菌(Escherichia coli)を形質転換させ、常法に従って培養後、発現組換えタンパク質であるマウスMPO(rmMPO)を回収した。このrmMPOは、Hisタグ標識したマウスMPOのL鎖-H鎖からなる。次いで、得られたrmMPOを精製したものを用いてウサギを免疫し、得られたポリクローナル抗体のIgGフラクションをプロテインAを用いて血清から単離することにより、抗rmMPO IgGを得た。なお、コントロール用のウサギIgGは、rmMPOで免疫せずに上記と同様の手法により得た。
3.1 細胞溶解液の調製
上記1.で培養したmGEC細胞を、PBS中でセルスクレイパーを用いて回収し、遠心してペレット状にした。このペレット状の細胞をPBSで洗浄した後、RIPA buffer(150mM NaCl、10mM Tris-HCl、0.1% SDS、1.0% Triton X-100、1.0% Sodium deoxycholate、 5mM EDTA)に溶解し、超音波によって細胞を破砕して細胞溶解液を得た。
上記3.1で得られたニトロセルロースメンブレンを0.05% Tween 20/TBS[50mM Tris-HCl/150mM NaCl(pH7.6)]で軽く洗浄した後、5%BSA/0.05% Tween 20/TBSを用いて4℃にて一晩ブロッキングを行なった。次に、メンブレンを、室温にて1.5時間、一次抗体(バッファー:5%BSA/0.05% Tween 20/TBS)と反応させた。その後、メンブレンを0.05% Tween 20/TBSで3回洗浄し、次いで室温にて1.5時間、HRP標識二次抗体(バッファー:5% BSA/0.05% Tween 20/TBS)と反応させた。その後、メンブレンを0.05% Tween 20/TBSで3回洗浄し、ECL(GE healthcare)液に1分間反応させた。最後に、暗室においてX線フィルム(GE healthcare)に感光させ、現像機(富士フィルム株式会社)により現像を行なった。その結果を図1に示す。図1に示すように、68kDaのモエシンが検出され、mGEC細胞でモエシンが発現していることが確認された。
4.1 細胞溶解液の調製
上記1.で培養したmGEC細胞を、PBS中でセルスクレイパーを用いて回収し、遠心してペレット状にした。このペレット状の細胞をPBSで洗浄した後、RIPA buffer(150mM NaCl、10mM Tris-HCl、0.1% SDS、1.0% Triton X-100、1.0% Sodium deoxycholate、 5mM EDTA)に溶解し、超音波によって細胞を破砕して細胞溶解液を得た。
上記3.1で得た細胞溶解液に、終濃度50%となるようにサンプルバッファー(Invitrogen)を加えた。ゲルとしては、IEFゲルpH3-10(Invitrogen)を用いた。このゲルを泳動槽(Invitrogen)に装填した後、下層に陽極バッファー(Invitrogen)、上層に陰極バッファー(Invitrogen)を注ぎ、サンプルを15μlアプライした。等電点電気泳動は、100Vで1時間、200Vで1時間、500Vで30分間行なった。なお、マーカーとしては、IEFマーカー(SERVA)を用いた。
上記3.2で得られた等電点電気泳動のゲルを12% TCAで30分間固定した。次に、ゲルをDDWで2回洗浄した後、SimplyBlueTM SafeStain(Invitrogen)の手順に従い、Coomassie Brilliant Blue(CBB)染色を行なった。染色したゲルをDDWで洗浄した後、2回、20%エタノールでそれぞれ10分間振盪した。次に、ゲルのサンプルを流したレーンを切り取り、20%エタノール/2×サンプルバッファーで5分間振盪した。次に、ゲルをrunning buffer(Invitrogen)で軽く洗浄し、SDS-PAGEのゲルのウェルに装填し、SDS-PAGEを200Vで約1時間15分行なった。なお、マーカーとしては、Novex(登録商標) Sharp Protein Standard(Invitrogen)を用いた。CBB染色の結果を図2に示す。図2に丸印で囲んで示すスポットを、後述するウェスタンブロッティングの現像後にメスを用いて切り出し、後述するPMF解析に用いた。
5.1 SDS-PAGEからニトロセルロースメンブレンへのトランスファー
上記3.2で得られたSDS-PAGE後のゲルを、ニトロセルロースメンブレン(GE healthcare)とともにトランスファー装置(Invitrogen)に装填し、30Vにて1時間、トランスファーを行なった
5.2.1 ブロッティング
上記5.1で得られたニトロセルロースメンブレンを0.05% Tween 20/TBS[50mM Tris-HCl/150mM NaCl(pH7.6)]で軽く洗浄した後、5%BSA/0.05% Tween 20/TBSを用いて4℃にて一晩ブロッキングを行なった。次に、メンブレンを、室温にて1.5時間、一次抗体(バッファー:5%BSA/0.05% Tween 20/TBS)と反応させた。その後、メンブレンを0.05% Tween 20/TBSで3回洗浄し、次いで室温にて1.5時間、HRP標識二次抗体(バッファー:5% BSA/0.05% Tween 20/TBS)と反応させた。その後、メンブレンを0.05% Tween 20/TBSで3回洗浄し、ECL(GE healthcare)液に1分間反応させた。最後に、暗室においてX線フィルム(GE healthcare)に感光させ、現像機(富士フィルム株式会社)により現像を行なった。現像の結果を図3に示す。図3に示すように、分子量67kDa、pI6.2の位置にスポットが確認された。
二次抗体:HRP標識抗ウサギIgG抗体(Sigma) 1/20000希釈。
6.1 抗rmMPO抗体と反応したmGECの細胞分子の同定
4.3の二次元電気泳動でのゲルをCBB染色後に切り出したスポット(ゲル)を、TOF-MS解析した。その結果を図4に示す。図4に示す結果から、得られたスポットに含まれるタンパク質は、モエシンであると同定された。
次いで、抗rmMPO抗体とモエシンとの分子結合を推定するために、モエシンおよびMPOのアミノ酸配列について、Protein BLASTによってホモロジー検索を行なった。検索の結果、5つの類似配列が見られた。また、最も類似性の高い配列では、同じ6つのアミノ酸を有する配列であった。
続いて、以下の手法(Cell ELISA法)により、抗モエシン抗体が抗rmMPO抗体(MPO-ANCA)と同様に血管内皮細胞のICAM-1発現を促進する効果を有するのではないかとの仮説を検証した。
ヒト肺上皮細胞A549細胞溶解液中のモエシンと反応する抗体が抗モエシン抗体であることを、以下の手法(ウェスタンブロッティング法)により確認した。
ヒト肺上皮細胞A549細胞溶解液を用い、上記3.1と同様にで得られたニトロセルロースメンブレンを0.05% Tween 20/TBS[50mM Tris-HCl/150mM NaCl(pH7.6)]で軽く洗浄した後、5%BSA/0.05% Tween 20/TBSを用いて4℃にて一晩ブロッキングを行なった。次に、メンブレンを、室温にて1.5時間、バッファー:5%BSA/0.05% Tween 20/TBS で50倍希釈した患者血漿と反応させた。その後、メンブレンを0.05% Tween 20/TBSで3回洗浄し、次いで室温にて1.5時間、HRP標識二次抗体(抗ヒトIgG抗体:バッファー:5% BSA/0.05% Tween 20/TBS)と反応させた。その後、メンブレンを0.05% Tween 20/TBSで3回洗浄し、ECL(GE healthcare)液に1分間反応させた。最後に、暗室においてX線フィルム(GE healthcare)に感光させ、現像機(富士フィルム株式会社)により現像を行なった。その結果、ヒトモエシンタンパク質に相当するバンドが確認され、血管炎患者血清中に抗モエシン抗体が存在することが確認された。なお、患者の血清中に含まれる抗モエシン抗体(MO-ANCA)がモエシンタンパク質を認識することを、当該抗モエシン抗体を一次抗体として用いたウェスタンブロッティング法により確認した(図5)。
以下の手法(ELISA法)によりMPO-ANCA関連血管炎である難治性血管炎患者の血漿を用いて解析した。
組換えヒトモエシンを、炭酸緩衝液で0.2 μg/ウェル(50μL、2mg/ml)の濃度に希釈し、96穴プレートのウェルにコーティングした。一日培養した後、PBST(PBS-0.1%Tween20)で2回洗浄した後、1% BSA/PBST 100 μLで1.5時間ブロッキングし、PBSTで2回洗浄した。1% BSA/PBSTで50倍に希釈した患者または健常者の血漿を加え、1.5時間室温で放置し、PBSTで2回洗浄した後、AP-標識抗ヒトIgG抗体でさらに1.5時間室温で放置した。PBSTで2回洗浄した後、AP基質緩衝液と反応させ、405~650nmにて吸光度を測定し、定量を行なった。結果を図6に示す。図6に示すように、MPO-ANCA関連血管炎に罹患した患者の血清中には、抗モエシン抗体(MO-ANCA)が存在した。なお、上記と同様の手法により、「MPO-ANCA」の定量も同時に行ない、結果は図6に併せて示されている。ここで、図6において「Pt A:anti-M high/MPO-ANCA low」とあるのは左の2つのバーで示される2人の患者(A1、A2)に対応し、抗モエシン抗体の量が多くMPO-ANCAの量が少なかった患者である。一方、図6において「Pt B:anti-M low/MPO high」とあるのは、その右のバーで示される1人の患者に対応し、抗モエシン抗体の量が少なくMPO-ANCAの量が多かった患者である。なお、図6に示す右端の2つのバーは健常者コントロールに対応する。
患者の血清試料における、抗モエシン抗体(MO-ANCA)の定量結果とMPO-ANCAの定量結果との関連について解析を行なった。その結果、上述した図6、並びに、図7および図8に示すように、それぞれの定量結果に基づいて、血管炎の病態が、(1)抗モエシン抗体(MO-ANCA)とMPO-ANCAとの間に正の相関のある病態(図7)、(2)抗モエシン抗体(MO-ANCA)とMPO-ANCAとの間に負の相関のある病態(図8)、(3)抗モエシン抗体(MO-ANCA)が高値(陽性)で、MPO-ANCAが低値(陰性)の病態(図6のPt-A)、(4)MPO-ANCAが高値だが、抗モエシン抗体(MO-ANCA)が低値の病態(図6のPt-B)、の4つの群に分類されうることが判明した。このことから、本発明の知見を利用し、これを従来存在するMPO-ANCAに基づく検査結果と組み合わせることで、MPAなどの血管炎を細分類するための新たな基準が提供されうる。そして、このような細分類基準を用いることで、患者血清中のMO-ANCAおよびMPO-ANCAの存在の有無およびその存在量に基づき、血管炎の病態やこれに対する種々の治療の効果をより精密に分類することができる。そして、最終的には、よりよい治療計画の策定や患者の予後の改善にも資するものである。
上記9.1と同様の手法(ELISA法)により、血管炎患者(n=76)の血漿中のMPO-ANCA力価および抗モエシン抗体価を測定し、それらの多重比較を行なった。結果を図9に示す。
上記11.においてMPO-ANCA力価および抗モエシン抗体価を測定した血管炎患者について、常法により、血清中のクレアチニン値を測定した。そして、図9に示す4つの領域ごとに、血清クレアチニン値を比較した。結果を図10に示す。
抗モエシン抗体が好中球と反応することが認められたことから、抗モエシン抗体によって好中球を刺激したときのサイトカイン・ケモカインの産生プロファイルを測定し、抗モエシン抗体による好中球刺激に対する反応をin vitroで分析した。
抗モエシン抗体が単球と反応することが認められたことから、上記と同様に、抗モエシン抗体によって単球を刺激したときのサイトカイン・ケモカインの産生プロファイルを測定し、抗モエシン抗体による単球刺激に対する反応をin vitroで分析した。
Claims (14)
- 生体試料中の、モエシンを特異的に認識する抗体を検出することを含む、血管炎の検査方法。
- 前記生体試料が血清試料であり、前記抗体がモエシンに対する自己抗体である、請求項1に記載の検査方法。
- 前記生体試料中の、ミエロペルオキシダーゼを特異的に認識する抗体を検出することをさらに含む、請求項1または2に記載の検査方法。
- 前記血管炎が顕微鏡的多発血管炎、アレルギー性肉芽腫性血管炎(チャーグ・ストラウス症候群)、ウェゲナー肉芽腫症、ギラン・バレー症候群、血栓性血小板減少性紫斑病(TTP)、特発性血小板減少性紫斑病、IgA腎症、急速進行性糸球体腎炎、特発性間質性肺炎、サルコイドーシス、びまん性汎細気管支炎、ベーチェット病、全身性エリテマトーデス(SLE)、シェーグレン症候群、高安病(大動脈炎症候群)、バージャー病、結節性多発動脈炎、悪性関節リウマチ、側頭動脈炎、抗リン脂質抗体症候群、強皮症、好酸球性筋膜炎、または天疱瘡である、請求項1~3のいずれか1項に記載の検査方法。
- 前記血管炎が顕微鏡的多発血管炎である、請求項1~4のいずれか1項に記載の検査方法。
- 生体試料中の、モエシンを特異的に認識する抗体を検出する物質を含む、血管炎の検査用試薬。
- 前記物質がモエシンおよび/またはその部分ペプチドである、請求項6に記載の検査用試薬。
- 前記血管炎が顕微鏡的多発血管炎、アレルギー性肉芽腫性血管炎(チャーグ・ストラウス症候群)、またはウェゲナー肉芽腫症である、請求項6または7に記載の検査用試薬。
- 前記血管炎が顕微鏡的多発血管炎である、請求項6または7に記載の検査用試薬。
- 血管炎の細分類のために、モエシンに対する自己抗体とミエロペルオキシダーゼを特異的に認識する抗体を、それぞれ検出することを特徴とする、モエシンに対する自己抗体の反応性の血管炎病態マーカーとしての使用。
- 前記血管炎が小血管炎と中血管炎とを合併するものである、請求項10記載のモエシンに対する自己抗体の反応性の血管炎病態マーカーとしての使用。
- 前記血管炎が顕微鏡的多発血管炎、アレルギー性肉芽腫性血管炎(チャーグ・ストラウス症候群)、またはウェゲナー肉芽腫症である、請求項10または11に記載のモエシンに対する自己抗体の反応性の血管炎病態マーカーとしての使用。
- 顕微鏡的多発血管炎の細分類のために、モエシンに対する自己抗体とミエロペルオキシダーゼを特異的に認識する抗体を、それぞれ検出することを特徴とする、モエシンに対する自己抗体の反応性の血管炎病態マーカーとしての使用。
- 単球および/または好中球を抗モエシン抗体で刺激することにより得られる、サイトカインおよび/またはケモカインの前記単球および/または好中球における産生プロファイルの血管炎の再分類への使用。
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Cited By (7)
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JP2016035448A (ja) * | 2014-07-31 | 2016-03-17 | 株式会社A−Clip研究所 | 難治性血管炎の病態を特定する新規なmpo−anca検査法 |
US9345765B2 (en) | 2010-10-08 | 2016-05-24 | Shanghai Kexin Biotech Co., Ltd. | Diagnostic and therapeutic uses of moesin fragments |
US9345764B2 (en) | 2010-10-08 | 2016-05-24 | Shanghai Kexin Biotech Co., Ltd. | Moesin modulators and uses thereof |
US9354241B2 (en) | 2010-10-08 | 2016-05-31 | Shanghai Kexin Biotech Co., Ltd. | Moesin fragments associated with aplastic anemia |
JP2017146271A (ja) * | 2016-02-19 | 2017-08-24 | 国立大学法人 千葉大学 | 血管炎の検査方法 |
KR20190108152A (ko) | 2017-01-27 | 2019-09-23 | 가부시키가이샤 에이클립켄규쇼 | 감염성 질환 또는 염증성 질환의 예방 및/또는 치료제 |
WO2024090571A1 (ja) * | 2022-10-28 | 2024-05-02 | 慶應義塾 | Mmp12を指標とした免疫介在性炎症性疾患の診断、及びmmp12阻害による免疫介在性炎症性疾患の治療用医薬 |
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US9347950B2 (en) * | 2010-10-08 | 2016-05-24 | Shanghai Kexin Biotech Co., Ltd. | Moesin fragments associated with immune thrombocytopenia |
KR101641756B1 (ko) | 2010-10-08 | 2016-07-21 | 상하이 켁신 바이오테크 씨오., 엘티디. | 모에신 단편 및 그의 용도 |
WO2020035123A1 (en) * | 2018-08-11 | 2020-02-20 | Baerlecken Niklas | Autoantibodies binding to negative elongation factor e (nelf-e) for diagnosing sarcoidosis |
CN114910650A (zh) * | 2022-05-07 | 2022-08-16 | 浙江大学 | 检测抗膜突蛋白-IgG抗体的试剂在制备检测血管内皮损伤的试剂盒中的应用 |
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US9345765B2 (en) | 2010-10-08 | 2016-05-24 | Shanghai Kexin Biotech Co., Ltd. | Diagnostic and therapeutic uses of moesin fragments |
US9345764B2 (en) | 2010-10-08 | 2016-05-24 | Shanghai Kexin Biotech Co., Ltd. | Moesin modulators and uses thereof |
US9354241B2 (en) | 2010-10-08 | 2016-05-31 | Shanghai Kexin Biotech Co., Ltd. | Moesin fragments associated with aplastic anemia |
JP2016035448A (ja) * | 2014-07-31 | 2016-03-17 | 株式会社A−Clip研究所 | 難治性血管炎の病態を特定する新規なmpo−anca検査法 |
JP2017146271A (ja) * | 2016-02-19 | 2017-08-24 | 国立大学法人 千葉大学 | 血管炎の検査方法 |
KR20190108152A (ko) | 2017-01-27 | 2019-09-23 | 가부시키가이샤 에이클립켄규쇼 | 감염성 질환 또는 염증성 질환의 예방 및/또는 치료제 |
WO2024090571A1 (ja) * | 2022-10-28 | 2024-05-02 | 慶應義塾 | Mmp12を指標とした免疫介在性炎症性疾患の診断、及びmmp12阻害による免疫介在性炎症性疾患の治療用医薬 |
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US9244079B2 (en) | 2016-01-26 |
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