WO1999015691A1 - Procede permettant de diagnostiquer un dysfonctionnement du metabolisme osseux - Google Patents
Procede permettant de diagnostiquer un dysfonctionnement du metabolisme osseux Download PDFInfo
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- WO1999015691A1 WO1999015691A1 PCT/JP1998/003421 JP9803421W WO9915691A1 WO 1999015691 A1 WO1999015691 A1 WO 1999015691A1 JP 9803421 W JP9803421 W JP 9803421W WO 9915691 A1 WO9915691 A1 WO 9915691A1
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- ocif
- antibody
- bone metabolism
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- monoclonal antibody
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- 229950008882 polysorbate Drugs 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 108090000765 processed proteins & peptides Proteins 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000012264 purified product Substances 0.000 description 1
- JUJWROOIHBZHMG-UHFFFAOYSA-O pyridinium Chemical compound C1=CC=[NH+]C=C1 JUJWROOIHBZHMG-UHFFFAOYSA-O 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 201000006409 renal osteodystrophy Diseases 0.000 description 1
- 238000009938 salting Methods 0.000 description 1
- 238000010517 secondary reaction Methods 0.000 description 1
- 239000012064 sodium phosphate buffer Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000007619 statistical method Methods 0.000 description 1
- 150000003871 sulfonates Chemical class 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 229940104230 thymidine Drugs 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- GPRLSGONYQIRFK-MNYXATJNSA-N triton Chemical compound [3H+] GPRLSGONYQIRFK-MNYXATJNSA-N 0.000 description 1
- 229960003732 tyramine Drugs 0.000 description 1
- DZGWFCGJZKJUFP-UHFFFAOYSA-O tyraminium Chemical compound [NH3+]CCC1=CC=C(O)C=C1 DZGWFCGJZKJUFP-UHFFFAOYSA-O 0.000 description 1
- 230000036325 urinary excretion Effects 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
- QYSXJUFSXHHAJI-YRZJJWOYSA-N vitamin D3 Chemical compound C1(/[C@@H]2CC[C@@H]([C@]2(CCC1)C)[C@H](C)CCCC(C)C)=C\C=C1\C[C@@H](O)CCC1=C QYSXJUFSXHHAJI-YRZJJWOYSA-N 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P21/00—Preparation of peptides or proteins
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K16/00—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies
- C07K16/18—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies against material from animals or humans
- C07K16/24—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies against material from animals or humans against cytokines, lymphokines or interferons
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P19/00—Drugs for skeletal disorders
-
- 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
- G01N33/6893—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving proteins, peptides or amino acids related to diseases not provided for elsewhere
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2800/00—Detection or diagnosis of diseases
- G01N2800/10—Musculoskeletal or connective tissue disorders
- G01N2800/108—Osteoporosis
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S436/00—Chemistry: analytical and immunological testing
- Y10S436/811—Test for named disease, body condition or organ function
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S530/00—Chemistry: natural resins or derivatives; peptides or proteins; lignins or reaction products thereof
- Y10S530/808—Materials and products related to genetic engineering or hybrid or fused cell technology, e.g. hybridoma, monoclonal products
- Y10S530/809—Fused cells, e.g. hybridoma
Definitions
- the present invention relates to a method for diagnosing bone metabolism disorders, particularly osteoporosis and joint diseases.
- the present invention also relates to a monoclonal antibody used for this diagnosis, and a diagnostic kit using this antibody.
- the present invention is useful for a method for diagnosing abnormal bone metabolism, particularly osteoporosis and joint disease, or an analytical reagent for research.
- Bone metabolism depends on the combined activities of osteoblasts, which are responsible for bone formation, and osteoclasts, which are responsible for bone resorption. In healthy adults, bone resorption and bone formation are balanced and bone mass remains constant. Abnormal bone metabolism is thought to be caused by this imbalance.
- Known bone metabolism disorders include osteoporosis, hypercalcemia, bone pageet disease, renal osteodystrophy, rheumatoid arthritis, osteoarthritis, and the like. Osteoporosis is a typical example of these bone metabolic disorders. Osteoporosis is considered to be a pathological condition that causes clinical symptoms such as bone loss and low back pain caused by bone loss.
- osteoporosis There are various causes of bone loss, including aging after growth, bone metastasis of cancer, and diseases such as hyperthyroidism.
- methods for diagnosing osteoporosis include bone X-ray photography (MD method), DPA (Dual photon absorpt i ometry), DEXA (Dual Energy X-ray Absorpt iometry), and CXD (Computed X-ray Dens).
- MD method bone X-ray photography
- DPA Dual photon absorpt i ometry
- DEXA Device Energy X-ray Absorpt iometry
- CXD Computed X-ray Dens
- bone with a physical bone mass measurement device such as There are measurements such as salt content and bone density.
- diagnostic standards for osteoporosis using these diagnostic methods are constantly being revised along with technological innovation.
- r ⁇ CIF significantly improves bone density and strength in animals with various bone metabolic disorders, and that large doses of r ⁇ CIF can be administered to normal animals. Bone density and strength were significantly enhanced in a dose-dependent manner, and it was confirmed that no side effects were expressed in any of organs other than bone tissue, blood chemistry tests, and blood cells. Through these in vivo studies, OCIF was found to be a very tissue-specific cytokine that acts only on bone tissue.
- OCIF is secreted and produced in animal cells as a homodimeric OCIF having a molecular weight of about 120 kDa, and is converted into a monomeric OCIF having a molecular weight of about 60 kDa upon processing of a protease or the like.
- human cell cultures contain humans, as both types of ⁇ ⁇ ⁇ CIF have been confirmed (Tsuda et al .: Biochem. Biophys. Res. Commun. 234, 137-142 (1997)). It is expected that both types of OCIF exist in mammalian body fluids and the like.
- OCIF could be a new bone metabolic marker
- the relationship between the concentration of each type of OCIF or the total concentration of both types in the body fluids of patients with various bone metabolic disorders and the relationship between each type of disease should be examined. Scrutiny is required.
- antibodies that can recognize both types of OCIF equally and antibodies that specifically recognize only homodimers are required.
- no anti-OCIF monoclonal antibody having such characteristics has been obtained so far. Disclosure of the invention
- the present inventors have made an eager search and found that Have affinity (hereinafter dissociation constant 10_ 9 M), found monomer and homodimer type ⁇ _CIF equally recognizing monoclonal antibodies, and monoclonal antibodies specifically recognizing only homodimer type ⁇ _CIF. Furthermore, a highly sensitive enzyme immunoassay kit (sandwich ELISA) was constructed using these antibodies. Using this sandwich ELISA, the OCIF concentration in the serum of young adults and the elderly and in the serum of patients with various diseases including osteoporosis, hyperthyroidism, and cancer was measured. High inverse correlation was found.
- Have affinity hereinafter dissociation constant 10_ 9 M
- the present invention provides a method for diagnosing bone metabolism disorders, particularly osteoporosis and joint destruction due to rheumatism and the like, characterized by measuring the concentration of human osteoclast formation inhibitory factor ( ⁇ CIF), a monoclonal antibody used therefor, It is an object of the present invention to provide an OCIF measurement kit using the same.
- ⁇ CIF human osteoclast formation inhibitory factor
- the present invention relates to a method for diagnosing a bone metabolism disorder by measuring the concentration of an osteoclast formation inhibitory factor (OCIF) in a collected body fluid, and diagnosing a bone metabolism disorder based on the measured concentration.
- OCIF osteoclast formation inhibitory factor
- the diagnosis of the present invention is particularly useful for the diagnosis of osteoporosis and joint diseases.
- Serum, synovial fluid and the like are used as body fluids.
- Osteoporosis is diagnosed primarily by measuring serum OCIF levels.
- Diagnosis of joint disease is mainly made by measuring OCIF concentration in synovial fluid.
- the diagnosis of the present invention is particularly useful for diagnosing osteoporosis. Serum, joint fluid and the like are used as body fluids.
- the present invention also relates to a monoclonal antibody used for these diagnoses.
- Examples of such a monoclonal antibody include a monoclonal antibody that recognizes monomeric and dimeric OCIF equally, and a monoclonal antibody that selectively recognizes only dimer-type ⁇ CIF. More these monoclonal antibodies recognize different Epitopu of OCIF, there are monoclonal antibodies dissociation constant between the antigen has a high affinity for the following 2 X 10- 7 M.
- the present invention relates to an OCIF measurement kit comprising such a monoclonal antibody in its constitution.
- the diagnostic method of the present invention is carried out by collecting body fluids such as blood (serum) and synovial fluid from a subject to be diagnosed and evaluating them with an OCIF measurement kit using the monoclonal antibody.
- body fluids such as blood (serum) and synovial fluid from a subject to be diagnosed and evaluating them with an OCIF measurement kit using the monoclonal antibody.
- the monoclonal antibody of the present invention can be obtained by the following method. That is, human OCIF, which is an immunizing antigen necessary for producing an anti-OCIF monoclonal antibody, was isolated from a culture of human fetal lung fibroblasts and IMR-90 according to the method described in W096 / 26217. Is used. Genetically modified human OCIF can also be used as the immunizing antigen. Recombinant human OCIF can be obtained by incorporating human OCIF cDNA into an expression vector according to a conventional method, expressing the purified product in animal cells such as CH0 cells, BHK cells, Namalwa cells, or insect cells, and purifying it. .
- Monomer and dimer-type ⁇ CIF can be purified by reverse phase chromatography according to the method of Tsuda et al. (Biochem. Biophys. Res. Co., mi. 234, 137-142 (1997)). Also, instead of reversed-phase chromatography, SP Sepharose, sulfated cell opening fine, and Resource S column By combining chromatography, both types of OCIF can be purified respectively. Spleen cells prepared by immunizing mammals with these antigens or lymphocyte cells immunized by the vitro method can be fused with a myeloma cell line (myeloma) to produce a hybridoma.
- myeloma cell line myeloma
- a monoclonal antibody that recognizes monomeric and homodimeric ⁇ CIF equally by evaluating highly purified monomeric OCIF or homodimeric OCIF as antigens in the hybridoma culture, or Hybridomas producing a monoclonal antibody that specifically recognizes only the homodimer-type CIF can be selected and cloned to establish. Further, by culturing the established stable hybridomas, the desired antibody can be obtained.
- the antigen OCIF
- physiological saline or the like is administered intravenously or intraperitoneally.
- Freund's complete adjuvant is administered in combination, and if necessary It is common to administer about 3 to 4 times at intervals of 2 weeks.
- mouse-derived myeloma that fuses with immune cells
- examples of mouse-derived myeloma that fuses with immune cells include, for example, p3 / x63-Ag8, p3-Ul, NS-1, MPC-11, SP-2 / 0-1, FO, P3x63 Ag8.63 and S194. it can.
- human B lymphocytes When producing human antibodies, human B lymphocytes must be immunized in vitro and fused with human myeloma cells or cell lines transformed with Epstein-Barr virus to produce human antibodies. Can be.
- Fusion of the immunized cells with the Mie cell line is performed by a known method, for example, the method of Koehler and Milstein et al. (Koehler et al., Nature, 256, 495-497, 1975).
- an electric pulse method using an electric pulse can also be used.
- Immune lymphocytes and myeloma cell lines are mixed in the usual ratio of cell numbers, and fused by adding polyethylene glycol to a commonly used cell culture medium (without fetal calf serum and FCS). Perform culturing in a HAT selection medium supplemented with FCS, and select fusion cells (hybridomas).
- An antibody that recognizes monomeric and homodimer type OCIF equally and a hybridoma that produces an antibody that specifically recognizes only homodimer type OCIF can be used for detection of normal antibodies such as ELISA, plaque method, octalony method, and agglutination method. The choice can be made using the method used.
- ELISA using purified monomer type and homodimer type OCIF enables the simplest and most accurate assay of the target antibody. In particular, it was difficult to obtain a high-affinity antibody (dissociation constant of 2 ⁇ 10 7 M or less) according to the present invention by ordinary solid-phase ELISA.
- a primary reaction is performed by adding a hybridoma culture solution (50-100) to a 96-Ilumino plate (Nunc) on which an antigen is immobilized, followed by a primary reaction, followed by enzyme labeling.
- a secondary reaction is performed by adding an anti-mouse IgG antibody labeled with oxidase (POD), an enzyme substrate solution (50-100 zl) is added, and after the enzyme reaction, the absorbance of each dinyl is measured.
- POD oxidase
- the hybridoma cultures shown indicate both cases where the hybridomas produce large amounts of antibodies with low antigen affinity and cases where they have low productivity but extremely high antigen affinity. Is present, and it is not easy to determine which one is.
- the solid phase ELISA was improved as follows so that the latter antibody-producing hybridomas having high antigen affinity can be relatively easily identified. That is, human serum or bovine serum is added to each well of a 96-well immunoplate on which the antigen is immobilized, and then a small amount of a hybridoma culture solution is added to each well, and the second- By performing the test in the presence of serum, it is possible to eliminate antibody-producing hybridomas with good productivity but low antigen affinity and to selectively screen antibody-producing hybridomas with high antigen affinity. became.
- an antibody that recognizes both types of ⁇ CIF equally is produced using the monomeric type OCIF and the homodimeric type OCIF as antigens, and an antibody that specifically recognizes only the hybridoma and the homodimeric type OCIF is produced.
- Each hybridoma is selected and cloned by limiting dilution 3 to 5 times to establish a stable antibody-producing strain.
- the hybridomas thus established can be subcultured by a usual culture method, and can be cryopreserved if necessary.
- Hybridomas can be cultured by a conventional method and recovered from the culture solution.
- Antibodies can also be recovered from ascites obtained by transplanting the hybridoma into the abdominal cavity of a mammal.
- the antibody in the culture solution or ascites can be purified by a method usually used for antibody purification, such as a salting method, ion exchange and gel filtration chromatography, and affinity chromatography using protein A or G.
- the obtained antibodies were antibodies that recognized monomeric and homodimeric ⁇ CIF equally, and antibodies that could specifically recognize only homodimeric ⁇ CIF.
- the amount of OCIF (monomer OCIF + homodimer-type OCIF) and It can be used for measurement of homodimer OCIF only.
- radioimmunoassay By labeling these anti-radioactive isotopes and enzymes, radioimmunoassay (RIA) It can be used in a measurement system known as Enzyme Immunoassay (ELISA), and can measure the amount of OCIF (monomer 10 homodimer type 0CIF amount) or the amount of homodimer type OCIF alone.
- OCIF monomer 10 homodimer type 0CIF amount
- OCIF Enzyme Immunoassay
- the presence of an antibody that specifically recognizes the homodimer type OCIF according to the present invention reveals that different types of monomeric ⁇ CIF and homodimer type OCIF have different epitopes, Indicates that it is an antibody that recognizes the epitope that is not present in Homodimer type 1 ⁇ CIF only.
- An antibody that recognizes monomeric CIF and homodimer OCIF equally obtained by the present invention is used as an immobilized antibody, and as a radioactive isotope or an enzyme-labeled secondary antibody, a monomeric OCIF and a homodimer are used with other common epitopes, respectively. If an antibody that recognizes type 1 OCIF equally and an antibody that specifically recognizes only homodimer type 1 OCIF are used, the amount of OCIF and the amount of homodimer type 1 OCIF can be measured, respectively.
- the 01-26 antibody specifically recognizing only the homodimer type ⁇ CIF disclosed in Example 6 (Table 1) below and the labeled antibody are used.
- An 01-19 or 01-4 antibody that recognizes monomeric ⁇ CIF and homodimer ⁇ CIF equally can also be used.
- the kit for measuring human ⁇ CIF of the present invention comprises: (i) one of the primary antibody and the secondary antibody is the 01-19 or 01-26 antibody;
- the kit is constructed based on the combination of reagents in the conventional sandwich method, except that the antibody is the 01-4 antibody. That is, the immunological assay kit of the present invention comprises (1) a primary antibody immobilized on an insoluble carrier, and (2) a labeled secondary antibody.
- the antibody, (3) lysing agent, (4) detergent, and (5) labeling substance are enzymes, they include a substrate for measuring enzyme activity and a reaction terminator.
- the insoluble carrier examples include, for example, polymers such as polystyrene, polyethylene, polypropylene, polyester, polyacrylonitrile, fluororesin, crosslinked dextran, polysaccharide, latex, magnetic fine particles prepared by coating metal with latex, other paper, glass, Examples include metal, agarose, and combinations thereof.
- the shape of the insoluble carrier can be various shapes such as tray shape, spherical shape, fibrous shape, rod shape, disk shape, container shape, cell, test tube, porous filter and the like.
- enzymes, fluorescent substances, luminescent substances, radioactive substances and the like as the labeling substances for the labeled antibodies.
- enzymes include peroxidase, alkaline phosphatase, 1-D-galactosidase, glucose oxidase, malate dehydrogenase, glucose 6-phosphate dehydrogenase, invertase, and the like.
- the forces that can be used are not limited to those illustrated, and any other force that can be used for immunoassay can be used.
- the labeling substance is an enzyme
- a substrate and, if necessary, a color former are used to measure the activity.
- a Peruokishidaze as enzymes, with H 2 ⁇ 2 as a substrate, 2, 2 'as color former - Ajinoji - [3 - E chill benz thiazoline sulfonic acid]
- Anmoniumu salt (ABTS), 5-Aminosarichiru acid , 0-phenylenediamine, 4-aminoantipyrine, 3,3 ', 5,5'-tetramethylbenzidine, homosevanillic acid, tyramine, etc.
- alkaline phosphatase as enzyme
- 0-nitrophenyl phosphate 4-methylpumbelliferyl phosphate
- fluorescein fluorescein
- the lysing agent may be any of those usually used for immunological measurement, and includes, for example, phosphate buffer, Tris-HCl buffer, acetate buffer and the like. However, those having a pH in the range of 6.0 to 8.0 are shown as preferable examples.
- a detergent generally used for immunological measurement is also used as it is. Examples include saline, phosphate buffer, Tris-HCl buffer, and mixtures thereof. These detergents may further contain a nonionic surfactant such as Triton II-100. Tween 20 or Brij35, and an ionic surfactant such as sodium dodecyl sulfate or CHAPS.
- Figure 1 is, c showing the calibration curve of EL ISA by 01- 19 antibody and 01-4 antibody of Example 7
- FIG. 2, c indicating a calibration curve of the EL I SA by 01-26 antibody and 01- 4 antibody of Example 7
- Figure 3 is, c indicating osteoporosis patients and blood OC IF concentrations of healthy subjects of Example 8
- FIG. 4 shows the relationship between urinary pyridinoline and blood OCIF concentration in Example 8.
- FIG. 5 shows the relationship between urinary deoxypyridinoline and blood OCIF concentration in Example 8.
- FIG. 6 shows the OC IF concentration in the synovial fluid of the patient of Example 9 having joint swelling.
- the OC IF-producing CH0 cells described in WO 96/26217 are seeded on EX-CE11 301 medium (JRH Biosciences) at a concentration of 1 xiO 5 cells / ml, and a cell culture jar (2 liter capacity) is used. )
- EX-CE11 301 medium JRH Biosciences
- CHAPS 3-[(3-cholaraidopropyl) -dimethylaimnonio] -l-propanesulfonate, Sigma
- the solution was filtered through a filter (Millidisk, Millipore).
- the culture solution is loaded on a SP Sepharose HP column (2.6xl0cm, Pharmacia) pre-equilibrated with 50 mM pristine-HCl buffer containing 0.1% CHAPS, pH 6.0, and washed with the same buffer. Flow rate 4 ml Elution was performed with a linear gradient in which the NaCl concentration was 1 M in Z and 100 minutes, and fractionation was performed in 8 ml increments. According to the method described in W096 / 26217, the OC IF activity of each fraction was measured to obtain a CIF fraction.
- the OC IF fraction was diluted 10-fold with 50 mM Bistris-HCl buffer containing 0.1% CHAPS, pH 6.0, and then preliminarily equilibrated with 50 mM Bistris-HCl buffer, pH 6.0. xl0cm, Seikagaku Corporation).
- the column was washed with 50 mM pistris-HCl buffer, pH 6.0, containing 0.1% CHAPS, and eluted with a linear gradient of 4 M / min for 100 min at a NaCl concentration of 1.5 M.
- One shot The OC IF activity of each fraction was measured in the same manner as described above.
- fraction 1 a part of each fraction was subjected to SDS-PAGE under non-reducing conditions, and fractions having OC IF activity and having a molecular weight of about 60 kDa were collected and designated as fraction 1. It also has OC IF activity, and under non-reducing conditions
- Fractions showing a molecular weight of about 120 kDa by SDS-PAGE were collected and designated as fraction 2.
- Fractions 1 and 2 were each diluted 10-fold with 50 mM Tris-HCl buffer containing 0.1% CHAPS, pH 7.0.
- Each of the two fractions obtained by dilution was loaded onto a Resource S column (0.64 x 3 cm, Pharmacia) pre-equilibrated with 50 mM Tris-HCl buffer containing 0.1% CHAPS, pH 7.0, and then subjected to 0.01% polysorbate.
- IF was dissolved in physiological saline so as to be 100 zg / ml.
- An equal volume of Freund's complete adjuvant was added to a mixture containing equal amounts of both types of OC IF prepared in this way, and the mixture was emulsified well.
- one Balb / c mouse intraperitoneally at 200 z 1 week The mice were immunized three times at intervals.
- the cells were fused according to Milstein, Nature, 256. 495 (1975)). After the completion of the fusion, the cell suspension was cultured in a HAT medium containing hypoxanthine, aminobuterin and thymidine for 10 days. After myeloma cells were killed and hybridomas appeared, the medium was replaced with HT medium from which aminobuterin was removed from HAT medium, and culturing was continued.
- the plate was added to each plate of a Munno plate (Nunc), and allowed to stand at 4 ° C for immobilization of each antigen. Discard the antigen solution in each well and add 0.1% polysorbate 20 in phosphate After washing with buffered saline (PBS-P), 40/1 fetal calf serum (Hyclone) was added to each well. Next, 10 ⁇ 1 of the hybridoma culture supernatant was added to each well, and reacted at room temperature under 80% serum concentration for 2 hours.
- PBS-P buffered saline
- Hyclone fetal calf serum
- Antibodies that exhibit particularly high absorbance and also recognize monomeric and homodimeric OCIF equally or antibody-producing hybridomas that specifically recognize only homodimeric OCIF without recognizing monomeric OCIF are selected.
- Stable antibody-producing hybridomas were established by repeating cloning 3 to 5 times from the doma by limiting dilution. From the obtained antibody-producing strains, a hybridoma strain having higher productivity of the target antibody was selected.
- hybridomas 01-19 and 01-4 that produce the 01-19 antibody or the 01-4 antibody that recognize monomeric ⁇ C IF and homodimeric ⁇ C IF equally are obtained.
- a hybridoma 01-26 that produces a 01-26 antibody that specifically recognizes only the homodimer type II CIF was obtained. These were deposited at the National Institute of Bioscience and Biotechnology, National Institute of Advanced Industrial Science and Technology.Accession number FERM BP-6419 for 01-4, accession number FERM BP-6420 for 01-19, accession number FERM BP-6421 for 01-26. Are respectively given.
- Example 3 Production and purification of monoclonal antibodies
- Each Hypridoma per animal was implanted intraperitoneally into Balb / c mice previously administered with pristane (Aldrich Chemical) with lxlO 6 cells. Two weeks later, the accumulated ascites was collected to obtain ascites containing the monoclonal antibody of the present invention.
- the dissociation constant of the monoclonal antibody was measured according to the method of Betrand Friguet et al. Uouriml of Immunological Methods, 77, 305-319, 1986). That is, the purified antibody obtained in Example 4 was mixed with 5% ng / ml of 40% Block Ace (Snow Brand Milk Products) and 0.1% polys orbate 20 in 0.2M Tris-HCl pH 7.4 (primary buffer buffer). ), And the purified monomeric or homodimer type 1 recombinant CIF (r0CIF) described in Example 1 diluted with a primary buffer to a concentration of 6.25 ng / ml to 10 g / ml.
- the OCIF was mixed with an equal volume, and allowed to stand at 4 for 15 hours to bind the OCIF to the monoclonal antibody. Fifteen hours later, antibodies unbound to ⁇ CIF are measured by a solid phase E USA on which solid-phase r ⁇ ⁇ ⁇ ⁇ CIF (10 zg / niK 100 1 / well) of monomeric or dimeric form is immobilized. The dissociation constants for the antibody monomer type 1 and homodimer type 1 ⁇ CIF were calculated.
- the class and subclass of the monoclonal antibody of the present invention were assayed using an immunoglobulin class and subclass analysis kit (Amersham). The test is This was performed according to the protocol specified in the kit. Table 1 shows the results obtained in Examples 5 and 6.
- antibodies 01-4 and 01-19 are antibodies that recognize monomeric and homodimeric OCIF almost equally, and antibody 01-26 is an antibody that specifically recognizes only homodimeric OCIF. It was confirmed that there was. In addition, all antibodies belonged to Igd, and it was revealed that the dissociation constant for monomeric or homodimeric ⁇ CIF was 2 ⁇ 10 17 M or less, and was an extremely high affinity antibody.
- a sandwich ELISA was constructed using the three types of antibodies 01-4, 01-26 and 01-19 obtained by the above method as a solid phase antibody and a labeled antibody, respectively.
- Antibody labeling was performed using maleimide-activated peroxidase kit (Pierce).
- FIG. 1 shows the results when an antibody that recognizes monomeric and homodimer OCIF almost equally as the primary antibody, and an antibody that specifically recognizes only homodimer type ⁇ CIF.
- Figure 2 shows the results when using -26.
- an antibody that recognizes monomer type 1 and homodimer type 1 ⁇ CIF almost equally, a solid phase antibody 01-19, an antibody that recognizes both types of ⁇ CIF equally.
- the measurement sensitivity of the sandwich ELISA using -4 as the POD-labeled antibody was about 25 pg / ml, indicating that it was possible to measure an extremely small amount of OCIF.
- FIG. 1 shows the results when an antibody that recognizes monomeric and homodimer OCIF almost equally as the primary antibody, and an antibody that specifically recognizes only homodimer type ⁇ CIF.
- Figure 2 shows the results when using -26.
- an antibody that recognizes monomer type 1 and homodimer type 1 ⁇ CIF almost equally
- Example 7 0 CIF concentration in serum of healthy individuals and patients with osteoporosis (based on diagnostic criteria of the Japanese Society for Bone Metabolism), and a partial improvement of the OCIS ELISA system (monomer type 0 CIF + homodimer type 0 CIF) described in Example 7 And measured. That is, in order to measure the ⁇ CIF concentration (monomer type 0C IF + homodimer type 0CIF), the antibody 01-19 that recognizes both types of ⁇ CIF equally was immobilized on a 96-well plate in the same manner as in Example 7.
- a primary buffer (0.2 M Tris-HCl, pH 7.4 containing 40% block ace and 0.1% polysorbate 20) containing purified mouse IgG (Capel) at 20 ⁇ g / ml was added to each bottle. 1 and then each human serum diluted 4-fold with the primary buffer were added and left at room temperature for 2 hours. After washing 6 times with phosphate-buffered saline (PBS-P) containing 0.1% polysorbate 20, the POD-labeled antibody 01-4 that recognizes both types of OCIF is purified.
- PBS-P phosphate-buffered saline
- FIG. 3 shows the test results of serum concentrations of OCIF (monomer type 0CIF + homodimer type-1 CIF) in osteoporosis patients and healthy subjects.
- the significance test of the results shown in FIGS. 3 to 5 was performed by Student's non-paired t test.
- serum OCIF monomer type 0 CIF + homodimer type OCiF
- serum OCIF levels in osteoporosis patients were significantly higher than those in healthy individuals. Therefore, by measuring serum OCIF concentration, the pathological condition of osteoporosis patients can be ascertained, and it became clear that OCIF could be a new way of determining bone metabolism to determine osteoporosis.
- Fig. 4 shows the relationship between serum OCIF (monomer type 0CIF + homodimer type 0 CIF) concentration and urinary pyridinoline concentration in healthy subjects and osteoporosis patients
- Fig. 5 shows the relationship between urinary deoxypyridinoline concentration.
- the pyridinoline concentration of 42 pmol / zmol Cr (the amount of pyridinoline praol per mol of creatinine)
- the deoxypyridinoline concentration of 6.2 pmol / ⁇ mol are the upper limits of the normal values for Japanese.
- the serum 0 CIF concentration of patients showing high pyridinoline and deoxypyridinoline concentrations was significantly higher.
- Pyridinoline and deoxypyridinoline are cross-linking molecules of collagen that are formed in the bone matrix after collagen is incorporated into the bone matrix and released by bone destruction during bone resorption. These molecules are said to have high specificity as bone resorption markers, and are widely used for evaluation of clinical specimens. The correlation between ⁇ C IF concentration and these two markers was confirmed, indicating that serum ⁇ C IF concentration is useful as a bone metabolism marker.
- Synovial fluid was collected after obtaining informed consent from 6 patients with gout and gout attack (G).
- the OCIF concentration in these synovial fluids was measured by partially modifying the OCIF ELISA system described in Example 8 (monomer type 0CIF + homodimer type 0CIF). did. That is, the synovial fluid was diluted 16-fold with the primary buffer, and 50 ⁇ l thereof was added to each gel of a 96 ⁇ l immunoplate on which antibodies 01-19 were immobilized. All operations except this operation were performed in the same manner as in Example 8.
- FIG. 6 shows the test results of the ⁇ C IF (monomer type 0 CIF + homodimer type 0 C IF) concentration in the synovial fluid of a patient with joint swelling.
- the Kruskal-Wallis Test and Mann-Whitney Test were used for statistical analysis of the data shown in Fig. 6.
- the lowest OCIF concentration in synovial fluid in the six OA patients was 4.79 ng / ml, whereas the OCIF concentration in synovial fluid showed a low value of 4.0 ng / ml or less. 15 out of 43 RA patients were diagnosed.
- OCIF may not suppress osteoclast formation and activity in the joints of some RA patients whose OCIF concentration in the synovial fluid was low.
- 0CIF-ELISA was shown to be useful for the diagnosis of rheumatoid arthritis (RA), osteoarthritis (0A), trauma (Tr), and gout attacks (G).
- RA rheumatoid arthritis
- the CIF concentration was 23.6 ng / ml, which was high (the median ⁇ CIF concentration in the synovial fluid of the 43 RA patients shown in Example 9 was about 6 ng / ml).
- the CRP of the plasma at this time was 5.4 mg / dl, which clearly showed an inflammatory response. CRP did not become completely negative and remained around 3 mg / dl until 1997. Knee Xp was confirmed from 1983 to 1997, but mainly due to changes in osteoarthritis (OA), and no bone erosion was observed in the finger joints and wrist joints.
- OA osteoarthritis
- Substrate solution here, TMB solution
- reaction stop solution TMB stop reagent
- Substrate solution here, TMB solution
- TMB stop reagent for measuring labeled enzyme activity 10 ml each Measurement method (Kit 1 and Kit 2)
- the diagnosis of bone metabolism disorders can be easily performed by measuring the concentration of human osteoclast formation inhibitory factor (0C IF) in collected body fluids (blood, synovial fluid, etc.). And accurately.
- C IF human osteoclast formation inhibitory factor
- the monoclonal antibody and a kit for measuring CIF using the monoclonal antibody are used. Therefore, diagnosis of abnormal bone metabolism, particularly osteoporosis and joint disease, can be easily performed as described above. And can be performed accurately.
- INDUSTRIAL APPLICABILITY The present invention is useful for a method for diagnosing abnormal bone metabolism, particularly osteoporosis and joint disease, or an analytical reagent for research. Reference to microorganisms
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Priority Applications (12)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002269114A CA2269114A1 (en) | 1997-09-24 | 1998-07-31 | Method for diagnosis of metabolic bone diseases |
IL12953598A IL129535A (en) | 1997-09-24 | 1998-07-31 | Method of diagnosing bone dysbolism |
AU84617/98A AU739304B2 (en) | 1997-09-24 | 1998-07-31 | Method of diagnosing metabolic bone diseases |
NZ335759A NZ335759A (en) | 1997-09-24 | 1998-07-31 | Method of diagnosing metabolic bone diseases by measuring osteoclastgenesis inhibitory factor (OCIF) |
US09/308,800 US6693175B2 (en) | 1997-09-24 | 1998-07-31 | Method for diagnosing bone dysbolism |
KR1019997003996A KR100547395B1 (ko) | 1997-09-24 | 1998-07-31 | 골대사이상증의 진단방법 |
JP51765099A JP4268684B2 (ja) | 1997-09-24 | 1998-07-31 | 骨代謝異常症の診断方法 |
EP98935306A EP0974671B1 (en) | 1997-09-24 | 1998-07-31 | Method for diagnosing bone dysbolism |
HU0002062A HUP0002062A3 (en) | 1997-09-24 | 1998-07-31 | Method for diagnosing bone dysbolism |
DE69834719T DE69834719D1 (de) | 1997-09-24 | 1998-07-31 | Methode zur diagnose von abnormalem knochenstoffwechsel |
NO992472A NO992472D0 (no) | 1997-09-24 | 1999-05-21 | FremgangsmÕte for Õ diagnostisere metabolske bensykdommer |
US10/641,088 US6998242B2 (en) | 1997-09-24 | 2003-08-15 | Method of diagnosing metabolic bone diseases |
Applications Claiming Priority (2)
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JP9/276475 | 1997-09-24 | ||
JP27647597 | 1997-09-24 |
Related Child Applications (3)
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US09308800 A-371-Of-International | 1998-07-31 | ||
US09/308,800 A-371-Of-International US6693175B2 (en) | 1997-09-24 | 1998-07-31 | Method for diagnosing bone dysbolism |
US10/641,088 Continuation US6998242B2 (en) | 1997-09-24 | 2003-08-15 | Method of diagnosing metabolic bone diseases |
Publications (1)
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WO1999015691A1 true WO1999015691A1 (fr) | 1999-04-01 |
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PCT/JP1998/003421 WO1999015691A1 (fr) | 1997-09-24 | 1998-07-31 | Procede permettant de diagnostiquer un dysfonctionnement du metabolisme osseux |
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US (2) | US6693175B2 (ja) |
EP (1) | EP0974671B1 (ja) |
JP (1) | JP4268684B2 (ja) |
KR (1) | KR100547395B1 (ja) |
CN (1) | CN1183159C (ja) |
AT (1) | ATE328281T1 (ja) |
AU (1) | AU739304B2 (ja) |
CA (1) | CA2269114A1 (ja) |
DE (1) | DE69834719D1 (ja) |
HU (1) | HUP0002062A3 (ja) |
IL (1) | IL129535A (ja) |
NO (1) | NO992472D0 (ja) |
NZ (1) | NZ335759A (ja) |
RU (1) | RU2203497C2 (ja) |
WO (1) | WO1999015691A1 (ja) |
ZA (1) | ZA986974B (ja) |
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WO2002022863A1 (fr) * | 2000-09-14 | 2002-03-21 | Applied Cell Biotechnologies, Inc. | Procede permettant de diagnostiquer l'osteoporose et/ou d'estimer le risque d'une fracture due a l'osteoporose |
WO2002062990A1 (fr) * | 2001-02-07 | 2002-08-15 | Sankyo Company, Limited | Anticorps et utilisation de cet anticorps |
WO2002079256A1 (fr) * | 2001-03-26 | 2002-10-10 | Sankyo Company, Limited | Anticorps et son utilisation |
US6919312B2 (en) | 1998-10-28 | 2005-07-19 | Sankyo Co., Ltd. | Bone-pathobolism treating agent |
US7276344B2 (en) | 1995-02-20 | 2007-10-02 | Sankyo Co., Ltd. | Methods for using the osteoclastogenesis inhibitory factor (OCIF) protein |
CN106405064A (zh) * | 2016-08-30 | 2017-02-15 | 嘉兴行健生物科技有限公司 | 一种40岁以上女性骨转换率的评估方法 |
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- 1998-07-31 JP JP51765099A patent/JP4268684B2/ja not_active Expired - Fee Related
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- 1998-07-31 CA CA002269114A patent/CA2269114A1/en not_active Abandoned
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- 1998-07-31 WO PCT/JP1998/003421 patent/WO1999015691A1/ja active IP Right Grant
- 1998-07-31 DE DE69834719T patent/DE69834719D1/de not_active Expired - Lifetime
- 1998-07-31 US US09/308,800 patent/US6693175B2/en not_active Expired - Fee Related
- 1998-07-31 CN CNB988013827A patent/CN1183159C/zh not_active Expired - Fee Related
- 1998-07-31 HU HU0002062A patent/HUP0002062A3/hu not_active Application Discontinuation
- 1998-07-31 NZ NZ335759A patent/NZ335759A/en unknown
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WO1996026217A1 (fr) * | 1995-02-20 | 1996-08-29 | Snow Brand Milk Products Co., Ltd. | Proteine nouvelle et ses procedes de production |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
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US7276344B2 (en) | 1995-02-20 | 2007-10-02 | Sankyo Co., Ltd. | Methods for using the osteoclastogenesis inhibitory factor (OCIF) protein |
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WO2002062990A1 (fr) * | 2001-02-07 | 2002-08-15 | Sankyo Company, Limited | Anticorps et utilisation de cet anticorps |
WO2002079256A1 (fr) * | 2001-03-26 | 2002-10-10 | Sankyo Company, Limited | Anticorps et son utilisation |
CN106405064A (zh) * | 2016-08-30 | 2017-02-15 | 嘉兴行健生物科技有限公司 | 一种40岁以上女性骨转换率的评估方法 |
CN106405064B (zh) * | 2016-08-30 | 2018-10-26 | 嘉兴行健生物科技有限公司 | 一种40岁以上女性骨转换率的评估方法 |
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US20020004207A1 (en) | 2002-01-10 |
HUP0002062A3 (en) | 2002-09-30 |
IL129535A (en) | 2003-07-06 |
RU2203497C2 (ru) | 2003-04-27 |
US6693175B2 (en) | 2004-02-17 |
HUP0002062A2 (hu) | 2000-10-28 |
EP0974671A8 (en) | 2002-07-03 |
US20040033533A1 (en) | 2004-02-19 |
NO992472L (no) | 1999-05-21 |
ZA986974B (en) | 1999-02-04 |
NO992472D0 (no) | 1999-05-21 |
KR20000068916A (ko) | 2000-11-25 |
DE69834719D1 (de) | 2006-07-06 |
AU739304B2 (en) | 2001-10-11 |
EP0974671B1 (en) | 2006-05-31 |
ATE328281T1 (de) | 2006-06-15 |
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US6998242B2 (en) | 2006-02-14 |
JP4268684B2 (ja) | 2009-05-27 |
AU8461798A (en) | 1999-04-12 |
KR100547395B1 (ko) | 2006-02-01 |
CN1183159C (zh) | 2005-01-05 |
EP0974671A4 (en) | 2004-10-22 |
CN1239515A (zh) | 1999-12-22 |
CA2269114A1 (en) | 1999-03-24 |
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