WO2003104454A1 - 新規オキシダーゼ - Google Patents
新規オキシダーゼ Download PDFInfo
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- WO2003104454A1 WO2003104454A1 PCT/JP2003/007148 JP0307148W WO03104454A1 WO 2003104454 A1 WO2003104454 A1 WO 2003104454A1 JP 0307148 W JP0307148 W JP 0307148W WO 03104454 A1 WO03104454 A1 WO 03104454A1
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- polypeptide
- amino acid
- acid sequence
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- screening
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N9/00—Enzymes; Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating or purifying enzymes
- C12N9/0004—Oxidoreductases (1.)
- C12N9/0012—Oxidoreductases (1.) acting on nitrogen containing compounds as donors (1.4, 1.5, 1.6, 1.7)
- C12N9/0036—Oxidoreductases (1.) acting on nitrogen containing compounds as donors (1.4, 1.5, 1.6, 1.7) acting on NADH or NADPH (1.6)
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- 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
- A61P19/02—Drugs for skeletal disorders for joint disorders, e.g. arthritis, arthrosis
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P29/00—Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
- C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
- C12Q1/68—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving nucleic acids
- C12Q1/6876—Nucleic acid products used in the analysis of nucleic acids, e.g. primers or probes
- C12Q1/6883—Nucleic acid products used in the analysis of nucleic acids, e.g. primers or probes for diseases caused by alterations of genetic material
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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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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
- C12Q2600/00—Oligonucleotides characterized by their use
- C12Q2600/158—Expression markers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2333/00—Assays involving biological materials from specific organisms or of a specific nature
- G01N2333/90—Enzymes; Proenzymes
- G01N2333/902—Oxidoreductases (1.)
- G01N2333/90209—Oxidoreductases (1.) acting on NADH or NADPH (1.6), e.g. those with a heme protein as acceptor (1.6.2) (general), Cytochrome-b5 reductase (1.6.2.2) or NADPH-cytochrome P450 reductase (1.6.2.4)
Definitions
- the present invention relates to a polypeptide which is a novel oxidase, a polynucleotide encoding the polypeptide, a vector containing the polynucleotide, a transformed cell containing the vector, and a diagnosis useful for rheumatoid arthritis (abbreviated as RA). Testing methods and screening methods for substances for treating RA and substances for treating Z or osteoarthritis c
- Nicotinamide-adenine dinucleotide phosphate (NADPH) oxidase is an enzyme that receives electrons from NADPH and ultimately passes them on to oxygen molecules to produce reactive oxygen species (R0S).
- the enzyme mainly present in phagocytes plays an important role in biological defense such as generation and sterilization of R0S against invasion of foreign substances such as microorganisms. Excessive production of R0S by this enzyme causes proteins and DNA to be cut and membranes damaged by lipid peroxides, etc., resulting in cell and tissue damage, and thus inflammatory diseases, vascular diseases, and neurodegeneration. It is known to cause various diseases including diseases, cancers, and heart diseases (see Non-Patent Documents 1 and 2). However, since the expression of NADPH oxidase, which produces R0S, is distributed systemically, side effects were a concern as a drug discovery target.
- N0X1 a family of NADPH oxidases present in non-phagocytic cells, and reported that R0S is generated in a tissue-specific manner in addition to phagocytes (see Non-Patent Document 3). . N0X1 is reported to be present in large amounts in the large intestine and induces cell proliferation and induction of various gene expressions, suggesting that it is involved in various diseases in the large intestine.
- the molecule is described as a factor present and functioning in the large intestine, such as being useful for diagnosis of colorectal cancer and development of a therapeutic agent for colorectal cancer.
- Patent Document 3 describes a sequence having a high homology to N0X1, and that this sequence is involved in the production of active oxygen and is useful for treating diseases associated with abnormal cell proliferation such as cancer and benign prostatic hyperplasia. Has been described.
- RA is a chronic inflammatory disease of unknown origin that causes the lesion to reside in the synovial tissue and causes redness, swelling, warmth, pain, restricted movement, and destruction of joints.
- interleukin-1 interleukin-U IL-1
- interleukin-6 interleukin-6
- IL-8 interleukin-8
- IL-12 interleukin-12
- IL-15 15
- interleukin-18 IL-18
- tumor necrosis factor or tumor necrosis factor-a % TNF-a) Nitric oxide, NO
- PGs prostaglandins
- Non-Patent Document 6 Using monoclonal antibodies, soluble receptors, etc., have been developed, and their efficacy has attracted attention (see Non-Patent Document 6). ). However, there is a group of patients who do not achieve complete remission by conventional therapy targeting the therapeutic target molecule (see Non-Patent Document 7). C Therefore, identification of a new therapeutic target molecule that differs from existing reports Is desired.
- R0S is known to activate NF / cB, a transcription factor that induces the expression of various molecules, through redox control (see Non-Patent Document 8).
- TNFa known as an inflammatory cytokine
- C0X-2 known as a prostaglandin synthase
- Non-Patent Document 11 US universities have defined criteria for classification of RA (see Non-Patent Document 11), but these criteria are merely landmarks and their disease patterns are diverse, so RA diagnosis, c particular quantitative and simple diagnosis has been considered difficult There is a need for a quantitative and simple method of diagnosing RA.
- Patent Document 1 International Publication W002 / 06515 Pamphlet
- Patent Document 2 International Publication W001 / 96390 Breadlet
- Patent Document 3 International Publication W000 / 28031 Pamphlet
- Non-Patent Document 1 “Trend-in” Pharmacological Science
- Non-Patent Document 3 “Nature”, (UK), 1999, Vol. 401, pp. 79-82 (Non-Patent Document 4) “Science” (USA), 2000, 287 Vol., P.138 (Non-Patent Document 5) "The 'Journal' ob 'Experimental” Medisin
- Non-Patent Document 6 "Current Pharmaceutical Biotechnology” J, (USA), 2000, Volume 1, p.217-233
- Non-Patent Document 7 “Nature Review I” (Nature Reviews I union), (UK), 2002, Volume 2, p.364-371
- Non-Patent Document 9 “Arthritis & Rheumatism J (US), 1999, Vol. 36, p.1681-1690
- Non-Patent Document 11 J. Axford (vJ. Axford), ed.
- NOX1-b novel oxidase gene full-length sequence from synovial cells derived from a human RA patient. Furthermore, they found that the N0X1-b gene was not expressed on synovial cells derived from healthy individuals, but was specifically expressed on synovial cells derived from RA patients.
- the use of (PGR) primers has enabled a useful test method as a diagnostic method for RA.
- a screening method for a substance for treating RA or a substance for treating osteoarthritis was constructed by utilizing the N0X1-b gene.
- the present invention was completed by providing a novel oxidase N0X1-b, a test method useful for diagnosing RA, and a screening method for a substance for treating RA and a substance for treating Z or osteoarthritis. That is, the present invention
- polypeptide that contains the amino acid sequence represented by SEQ ID NO: 2 and that is specifically expressed in a rheumatoid arthritis patient; or (2) the amino acid sequence represented by SEQ ID NO: 2 Or a polypeptide comprising an amino acid sequence in which several amino acids have been deleted and / or inserted, and which is expressed specifically in a rheumatoid arthritis patient; [2] a polypeptide comprising the amino acid sequence represented by SEQ ID NO: 2 Beptide,
- amino acid having a homology of 950/0 or more with the amino acid sequence represented by SEQ ID NO: 2 A gene containing a nucleotide sequence of a polynucleotide that encodes a polypeptide that specifically expresses a RA patient
- ii) Includes an amino acid sequence having a homology of 95% or more with the amino acid sequence represented by SEQ ID NO: 2, and also includes the nucleotide sequence of a polynucleotide encoding a polypeptide expressed specifically in RA patients.
- Kit for rehabilitation of joints including forward and reverse brammers designed to specifically amplify
- polypeptide according to [1] or [2], or an amino acid sequence having a homology of 95% or more with the amino acid sequence represented by SEQ ID NO: 2 and is specifically expressed in RA patients The screening method according to [8], wherein the substance that inhibits the activity of the polypeptide is a substance for treating rheumatoid arthritis and / or a substance for treating osteoarthritis.
- a method for producing a pharmaceutical composition for treating RA and for treating osteoarthritis or RA is provided.
- a protein having high homology to the polypeptide of the present invention (with 49 amino acids inserted between Nos. 432 and 433 of SEQ ID NO: 2) was found in database GENPEPT under accession numbers AF127763, AF166327, and database SWISSPROT. It has been registered as accession numbers Q9Y5S8 and Q9WV87, and is reported in Science287: 138 (2000), Nature401: 79 (1999), and W002 / 06515.
- a protein having high homology to the polypeptide of the present invention (16 amino acids are inserted between the 80th and 81st incense of SEQ ID NO: 1 and 49 amino acids are inserted between the 432rd and the 433rd incense).
- W000 / 28031 describes a protein having high homology to the polypeptide of the present invention (49 amino acids inserted between the 432rd and 433rd scents of SEQ ID NO: 2). It is described that it is involved.
- the protein is specifically highly expressed in the large intestine, and is useful for treating diseases related to abnormal cell proliferation such as cancer and benign prostatic hyperplasia.
- diseases related to abnormal cell proliferation such as cancer and benign prostatic hyperplasia.
- the international publication does not confirm the expression of the protein in synovial tissue and does not confirm whether or not the protein is specifically expressed in RA patients.
- the protein enhances the expression levels of TNF o? And G0X-2, which are the causes of RA.Therefore, there is no information that the protein is useful as a target for RA testing or RA treatment. Absent.
- the polypeptide of the present invention is not present in the synovium derived from a healthy subject but specifically present in the synovium derived from an RA patient, and the polypeptide of the present invention is a target for RA treatment. Is a finding that the present inventors have found for the first time, and a method for testing RA and a method for screening a substance for treating RA by using them are the first inventions made by the present inventors. BRIEF DESCRIPTION OF THE FIGURES
- FIG. 1 is a diagram showing an increase in N0X1-b mRNA expression in synovial cells derived from RA patients.
- FIG. 2 is a diagram showing R0S-producing activity of N0X1-b and inhibition by DPI.
- FIG. 3 is a graph showing an increase in GOX-2 mRNA expression in N0X1-b expressing cells and inhibition by DPI.
- FIG. 4 is a diagram showing an increase in TNF-of mRNA expression in N0X1-b-expressing cells and inhibition by DPI.
- RA is used as an abbreviation of “rheumatoid arthritis”.
- the Japanese translation of RA was “rheumatoid arthritis”, but the Japanese Society for Rheumatoid Arthritis in 2002 announced that the Japanese translation of RA was changed from “rheumatoid arthritis” to "rheumatoid arthritis j". Therefore, it was followed in this specification.
- polypeptide that contains the amino acid sequence represented by SEQ ID NO: 2 and that is specifically expressed in RA patients, or that one or several amino acids are deleted in the amino acid sequence represented by SEQ ID NO: 2, And / or a polypeptide comprising an inserted amino acid sequence and also specifically expressed in RA patients; (hereinafter referred to as a functionally equivalent variant)
- “Functional equivalent variant J of the present invention” includes "a polypeptide comprising the amino acid sequence represented by SEQ ID NO: 2 and which is specifically expressed in RA patients”; In the amino acid sequence represented by No. 2, 1 to 10, preferably 1 to 7, and more preferably 1 to 5 amino acid sequences are deleted and / or inserted, and And a polypeptide specifically expressed in RA patients.
- polypeptide of the present invention has been described above, the polypeptide consisting of the amino acid represented by SEQ ID NO: 2 and the functionally equivalent variant of the present invention are collectively referred to as “the polypeptide of the present invention”. Called.
- a protein that is a polypeptide consisting of the amino acid represented by SEQ ID NO: 2 is referred to as “ ⁇ -b protein”.
- polypeptide of the present invention examples include “a polypeptide comprising the amino acid sequence represented by SEQ ID NO: 2” and “a polypeptide comprising the amino acid sequence represented by SEQ ID NO: 2 and which is specifically expressed in RA patients.
- a polypeptide comprising the amino acid sequence represented by SEQ ID NO: 2 1 to 10, preferably 1 to 7, and more preferably 1 to 5 amino acids are deleted and / or inserted amino acids.
- Preferred is a "polypeptide comprising a sequence and expressed in an RA patient-specific manner", and more preferred is a polypeptide J consisting of the amino acid sequence represented by SEQ ID NO: 2.
- the polynucleotide of the present invention may be any nucleotide sequence encoding the N0X1-b protein represented by the amino acid sequence of SEQ ID NO: 2 or a functionally equivalent variant thereof.
- it is a polynucleotide having a nucleotide sequence encoding the amino acid sequence of SEQ ID NO: 2, and further preferably, it is the polynucleotide of SEQ ID NO: 1.
- the method for producing the polynucleotide of the present invention is not particularly limited, and examples thereof include (1) a method using PGR, (2) a conventional genetic engineering technique (that is, transformation using a GDNA library).
- the term “the novel protein J of the present invention” refers to the polypeptide of the present invention (eg, NOX-1b protein) and the term “the gene of the present invention” refers to the polynucleotide of the present invention (eg, N0X1-b). Read as For details,
- the polynucleotide of the present invention can be produced by the procedure described in the first production method.
- MRNA is extracted from cells or tissues capable of producing the protein of the present invention, for example, from synovium derived from a human RA patient.
- the mRNA is subjected to a reverse transcription enzyme reaction in the presence of a random primer or an oligo dT primer to synthesize a first-strand cDNA.
- the polynucleotide of the present invention or a part thereof is obtained.
- PGR polymerase chain reaction
- the target gene is amplified by the method described in Example 1 using, for example, the sequences represented by SEQ ID NOS: 5 and 6 as primers.
- SEQ ID NOS: 5 and 6 the sequences represented by SEQ ID NOS: 5 and 6 as primers.
- the expression vector, the host cell, and the method for producing the protein of the present invention are described in, for example, “Embodiments of the Invention” in the above-mentioned patent document. 2) Production of the vector, the host cell of the present invention, and the recombinant protein of the present invention. It can be performed by the method described in the method. More specifically, the expression vector of the present invention is expressed in mammalian cells by the method described in Example 2 using pcDNA3.1 / HisB, and the host cell and protein of the present invention are NI H3T3 It can be produced by the method described in Example 3 in which cells are transformed with a transfection reagent.
- the polynucleotide of the present invention itself can be used as a hybridizing probe in the RA test method described below, and is useful for RA test. Further, the polypeptide of the present invention can be used as a control for producing an antibody that specifically recognizes the polypeptide of the present invention, and for detecting and / or quantifying the expression level.
- NOXl-b was not expressed in samples derived from healthy subjects, and N0X1-b was specifically expressed in samples derived from RA patients. Expression can be used to detect RA disease. Specifically, an embodiment including the following steps is exemplified. That is,
- a gene containing the nucleotide sequence of the polynucleotide of the present invention that is, i) a polypeptide that contains the amino acid sequence represented by SEQ ID NO: 2 and that is expressed specifically in RA patients;
- a polypeptide containing an amino acid sequence in which one or several amino acids have been deleted, inserted, or inserted, and further expressed specifically in RA patients, or ii)) SEQ ID NO: 2 A gene comprising a nucleotide sequence of a polynucleotide encoding a polypeptide consisting of the amino acid sequence represented by :), or
- the homologous polypeptide in the present invention is a “polypeptide containing an amino acid sequence having a homology of 95% or more with the amino acid sequence represented by SEQ ID NO: 2 and specifically expressed in RA patients”.
- the homology is not particularly limited, a polypeptide containing an amino acid sequence whose homology is preferably 97% or more, more preferably 99% or more is preferable.
- the homologous polypeptide in the present invention can be produced by the same production method as the polypeptide of the present invention.
- the polypeptide of the present invention and the homologous polypeptide of the present invention are collectively referred to as the screening polypeptide of the present invention.
- As the polypeptide for screening of the present invention a polypeptide having the amino acid sequence represented by SEQ ID NO: 2 is particularly preferable.
- the expression level of a gene in the method for testing RA of the present invention includes transcription of the gene into mRNA and translation into a protein. Therefore, the method for testing RA according to the present invention provides an expression level of mRNA corresponding to a polynucleotide (eg, N0X1-b gene) encoding the polypeptide for screening of the present invention, or a method coded by the gene. This is based on a comparison of the expression levels of the proteins.
- a polynucleotide eg, N0X1-b gene
- the method of measuring the expression level of a gene (eg, NOX1-b gene) in step [1] can be performed according to a known gene analysis method.
- a hybridization technique using a nucleic acid that hybridizes to the N0X1-b gene as a probe or a gene amplification technique using a DNA that hybridizes to the N0X1-b gene as a primer can be used.
- the measurement can be carried out using synovial cell-derived nucleic acid obtained from a subject, such as mRNA.
- the amount of mRNA is measured by a gene amplification reaction using a primer designed to specifically amplify a polynucleotide (eg, N0X1-b sequence) encoding the screening polypeptide of the present invention. It can be measured by the method.
- the method of the gene amplification reaction is not particularly limited, but a PGR method, a nucleic acid amplification method using an RNA polymerase, or the like can be used. More specifically, it can be carried out by the method described in Example 4.
- the primer used in the RA test method of the present invention or the primer contained in the RA test kit is the primer of the present invention.
- the screening polypeptide of the present invention is not particularly limited as long as it can specifically amplify a polynucleotide encoding the screening polypeptide (eg, NOX1-b sequence). It can be designed based on the polynucleotide (eg, N0X1-b base sequence). Preferably, they are the oligonucleotides described in SEQ ID NO: 5 and SEQ ID NO: 6.
- the RA inspection using the hybridization technology can be performed using, for example, Northern hybridization, dot plotting, DNA microarray, and the like. Furthermore, it can be implemented by using gene amplification technology such as RT-PGR.
- gene amplification technology such as RT-PGR.
- the gene containing the polynucleotide encoding the screening polypeptide of the present invention (for example, N0X1-b gene) is used by using the PGR amplification monitor (real-time PGR) method in the gene amplification process. It is possible to perform a more quantitative analysis on the occurrence of As a PCR amplification monitoring method, for example, ABI PRI SM7700 (Applied Biosystems) can be used.
- the expression level is determined by using a protein comprising the screening polypeptide of the present invention.
- a method of measuring by detecting NOX1-b protein is possible.
- a test method for example, a cell extract derived from synovial cells obtained from a subject is used.
- An antibody that binds to a protein comprising the screening polypeptide of the present invention preferably a NOXl-b protein More preferably, Western blotting, an immunoprecipitation method, an ELISA method, or the like using an antibody that specifically binds to N0X1-b can be used (in step [2], obtained in step [1]).
- the comparison method is not particularly limited as long as the expression level is compared with the expression level in a healthy subject, and the comparison can be made by, for example, the method described in Example 4.
- the RA test kit of the present invention contains at least forward and reverse primers designed to specifically amplify a polynucleotide encoding the screening polypeptide of the present invention.
- forward and reverse primer pairs include primers represented by the nucleotide sequences of SEQ ID NO: 5 and SEQ ID NO: 6. It is.
- Other reagents that can be included in the RA test kit of the present invention include reagents necessary for performing PGR (eg, Taq polymerase, nucleotide substrate, buffer, etc.).
- the screening method of the present invention includes a method of screening a substance that suppresses the activity of the screening polypeptide of the present invention, and a method of screening a substance for treating RA and a substance for treating Z or osteoarthritis. It is.
- the method for screening a substance that suppresses the activity of the polypeptide for screening of the present invention is not particularly limited as long as the method includes the following steps ( ⁇ ) to (iiii).
- a substance that suppresses the activity of the screening polypeptide of the present invention can be screened by the method described in Example 5.
- TNF known as an inflammatory cytokine
- G0X-2 known as a prostaglandin synthase
- a substance for treating RA and / or a substance for treating osteoarthritis can be screened.
- C0X-2 expression level and TNF expression level were significantly enhanced in cells expressing N0X1-b, one of the polypeptides of the present invention. (Examples 6 and 7).
- this G0X-2 expression induction and TNFo? Expression induction was inhibited by DPI, which is an inhibitor of N0X1-b, so that G0X-2 and TNFo; were controlled through redox control by R0S derived from ⁇ -b, one of the polypeptides of the present invention.
- the method for screening a substance that suppresses the activity of the screening polypeptide of the present invention can be used as a method for screening a substance for treating RA and / or a substance for treating osteoarthritis.
- the method of screening for a substance for treating osteoarthritis is not particularly limited as long as it includes the following steps (i) to (iii).
- the substance obtained by the above screening method By subjecting the substance obtained by the above screening method to a known evaluation system for RA therapeutic agents or an improved evaluation system, it is determined whether or not the substance is useful as a therapeutic agent for RA.
- the confirmation of RA treatment activity was confirmed in collagen-induced arthritis model mice (Fiona ⁇ Duris et al., Glin. I ⁇ unol.
- screening method of the present invention for example, based on the difference in the method used to analyze (measure or detect) the activity of the screening polypeptide of the present invention, for example,
- the substance that suppresses the activity of the screening polypeptide, the substance for treating RA, and / or the substance for treating osteoarthritis of the present invention can be screened using a chemico-biochemical method.
- chemical-biochemical methods include (i) a screening method using the cytochrome G reduction method, (ii) a screening method using the reduction of nitro blue tetrazolium (NBT), and ((i) ) A screening method utilizing reduction of water-soluble triazolum salt can be mentioned.
- the detection by the cytochrome G reduction method utilizes the fact that when oxidized cytochrome G is reduced, it changes to a reduced form with a strong absorption at 550 nm ( ⁇ M. McCord and I.
- the NBT reduction method utilizes the fact that NBT is reduced by O 2 — to produce water-insoluble blue formazan (absorption maximum 560 nm) (C. Beauchamp and Fridovich, Anal. Biochem., 44, 276 ( 1971)).
- a cell expressing the screening polypeptide of the present invention is prepared. Add the test substance, add an appropriate amount of probe (eg, cytochrome G), and incubate for a certain period of time. After the reaction, the absorbance at 550 ntn is measured. If the conversion to the reduced form is suppressed when the test substance is added, it can be determined that the test substance is a substance that suppresses the activity of the screening polypeptide of the present invention.
- a screening method using the cytochrome G reduction method which is one of the methods, is preferably performed under the conditions described in Example 5.
- the substance that suppresses the activity of the polypeptide for screening of the present invention it is preferable to select a substance that is 10i ⁇ M or lower, preferably lower than or equal to 0.1, more preferably lower than or equal to 0.1 ⁇ M.
- Examples of the chemiluminescence method include (i) a screening method using a firefly luciferin derivative and a (ij) screening method using a luminol method.
- the firefly luciferin derivative utilizes the fact that it reacts with O 2 — in an aqueous solution near neutrality to produce an excitable liponyl body, which emits strong light at 380 nm in the process of transition to the ground state ( Goto, T: Pure Appl Chem, Vol 7, 421-441, 1968).
- Luminol detection is for aqueous alkaline solutions in the presence of O 2 — or H 2 O 2 HOG and K 3 produced Fe (GN) 6, K 2 S 2 0 8, Fe 2+ salt, Go 3+ Aminofuta Ichiru acid Jiani on is oxidized such as by (excited state), it transitions to the ground state It uses light emission during the process (Roswell, DFeta Method in Enzymology, Vol 5, 409-423, 1972).
- a cell expressing the screening polypeptide of the present invention is prepared.
- the test substance is added, and a probe (eg, firefly luciferin derivative) is added in an appropriate amount and allowed to act for a certain period of time. After the reaction, the emission at 380 nm is measured. If luminescence is suppressed when a test substance is added, it can be determined that the test substance is a substance that suppresses the activity of the screening polypeptide of the present invention.
- a substance that suppresses the activity of the screening polypeptide of the present invention a substance that is preferably 1 uM or less, more preferably 0.1 uM or less is preferably selected.
- ESR signal can be measured indirectly by using a spin trap method.
- the ESR method utilizes the reaction of short-lived radical species with a trapping agent to generate stable radicals, and analyzes the ESR spectrum.
- the most versatile spin trapping agent currently used is 5,5-dimethyl-1-pyrroline oxide (DMP0) (Y. Noda, K. Anzai, A. Mori, M. Kohno, M. Shinmei and L. Packer, Biochem. Mo I. Biol. Int., 42, 35 (1997)).
- DMP0 5,5-dimethyl-1-pyrroline oxide
- a cell expressing the screening polypeptide of the present invention is prepared. Add the test substance, and add an appropriate amount of a spin trap (eg, DMP0) and allow it to act for a certain period of time.
- the test substance is a substance that suppresses the activity of the polypeptide for screening of the present invention.
- the substance that suppresses the activity of the screening polypeptide of the present invention it is preferable to select a substance that is 10 jwM or less, preferably ⁇ ; / M or less, more preferably 0.1 j «M or less.
- the test substance to be selected by the screening method of the present invention is not particularly limited.
- various known compounds including peptides registered in a chemical file, combinatorial chemistry techniques ( Terrett, NK et al., Tetrahedron, 51, 8135-8137, 1995), or a phage display method (Fe lici, F. et al., ⁇ Mol. Biol., 222, 301-). 310, 1991) can be used.
- Natural components derived from microorganisms, plants, marine organisms, or animals for example, culture supernatants or tissue extracts
- a compound (including a peptide) obtained by chemically or biologically modifying a compound (including a peptide) selected by the screening method of the present invention can be used.
- the present invention comprises a step of screening using the screening method of the present invention, and a step of formulating a substance using the substance obtained by the screening, for RA treatment and Z or A method for producing a pharmaceutical composition for treating osteoarthritis is included.
- Formulations containing a substance obtained by the screening method of the present invention as an active ingredient include, depending on the type of the active ingredient, carriers, excipients, and / or other additives that are commonly used for the formulation thereof. It can be prepared using
- Administration may be, for example, oral administration of tablets, pills, capsules, granules, fine granules, powders, or oral solutions, or injections such as intravenous, intramuscular, or joint injections, suppositories.
- parenteral administration such as intravenous injection is preferred for peptides digested in the stomach.
- one or more active substances and at least one inert diluent such as lactose, mannitol, glucose, microcrystalline cellulose, hydroxypropylcellulose, starch, polyvinyl It can be mixed with pyrrolidone or magnesium aluminate metasilicate.
- the composition may contain additives other than an inert diluent, for example, a lubricant, a disintegrant, a stabilizer, or a solubilizing or solubilizing agent, according to a conventional method. Tablets or pills may be coated, if necessary, with a sugar coating or a gastric or enteric substance. / 07148
- Liquid compositions for oral use can include, for example, emulsions, solutions, suspensions, syrups, or elixirs; commonly used inert diluents, such as purified water Or it may include ethanol.
- the composition can contain additives other than inert diluents, for example, wetting agents, suspending agents, sweetening agents, fragrances, or preservatives.
- Parenteral injections may include sterile aqueous or non-aqueous solutions, suspensions, or emulsions.
- the water-soluble solution or suspension may contain, as a diluent, for example, distilled water for injection or physiological saline.
- examples of the diluent of the water-insoluble solution or suspension include, for example, propylene glycol, polyethylene glycol, vegetable oil (eg, olive oil), alcohols (eg, ebobo, ethanol), and polysorbate 80. be able to.
- the composition may further contain a wetting agent, an emulsifier, a dispersant, a stabilizer, a solubilizing or solubilizing agent, a preservative, and the like.
- the composition can be sterilized by, for example, filtration through a bacteria-retaining filter, blending of a bactericide, or irradiation.
- a sterile solid composition can be produced and dissolved in sterile water or another sterile injectable medium before use.
- the dose can be appropriately determined in consideration of the active ingredient, that is, the activity intensity, symptoms, age, sex, etc. of the substance obtained by the screening method of the present invention.
- the dose is usually about 0.1 to 100 mg, preferably 0.1 to 50 mg per day for an adult (assuming a body weight of 60 kg).
- the dosage is 0.01 to 50 mg, preferably 0.01 to 10 mg per day in the form of injection.
- RNAeasy Protect Mini Kit RNAeasy Protect Mini Kit
- mRNA was purified from synovial cells (HS-RA) derived from Toyobo's RA patients, and Superscript 11 (SUPERSCRIPT First-Strand Synthesis System for RT-PCR) was purified.
- HS-RA synovial cells
- Superscript 11 SUPERSCRIPT First-Strand Synthesis System for RT-PCR
- a homemade GDNA produced by converting it to GDNA using (Gibco-BRL) was designated as type I.
- An oligo DNA encoding the outside of the 0RF of N0X1 represented by SEQ ID NO: 3 and SEQ ID NO: 4 was synthesized, and after 94 minutes at 94 ° C using DNA polymerase (PLATINUM TM Taq DNA polymerase; Invitrogen).
- the PGR reaction was performed 35 times at a cycle of 94 ° C for 30 seconds, 55 ° C for 30 seconds, and 68 ° C for 3 minutes.
- the GDNA obtained by this reaction was inserted into a cloning vector (TA Cloning Kit; Invitrogen) (N0X1 vector), and analyzed with the ABI3700 DNA Sequencer (Applied Biosystems) by the dideoxy terminator method. It was determined.
- This gene was named N0X1-b.
- the full-length nucleotide sequence of the gene is shown in SEQ ID NO: 1, and the deduced amino acid sequence is shown in SEQ ID NO: 2.
- N0X1-b encoded a novel protein in which the 433rd to 481st positions of N0X1 (Genbank accession number: AF127763) were spliced out.
- Example 2 Cloning of M0X1-b full-length 0RF and construction of a protein expression plasmid
- the N0X1-b vector prepared in Example 1 was EGORed, cut with Xhol, and a protein expression vector (PGDNA3.1 / HisB; Invitrogen) ) And inserted into the Xhol site to complete the full-length protein expression plasmid PGDNA3.1 / HisB ⁇ N0X1-b.
- NIH3T3 cells (Dainippon Pharmaceutical Co., Ltd.) on a 10 cm plate at 1 ⁇ 10 6 cells and culturing for 12 hours
- the expression plasmid pcDNA3.1 / HisB ⁇ bandage 1-b and empty vector prepared in Example 2 were prepared.
- PGDNA3.1 / HisB was introduced into IH3T3 cells using a transfection reagent (FuGENE TM 6 Transfection Reagent; manufactured by Roche) according to the attached instructions.
- the medium was replaced with serum-free 12 to 16 hours after introduction of the plasmid, and an additional 48- The culture was continued for 60 hours.
- the transfected cells were washed with PBS and recovered with SDS sample buffer (SB).
- the presence of the target protein in the SB was confirmed by Western blotting using an antibody that recognizes the G-terminal sequence common to the N0X1 protein and the N0X1-b protein as an epitope (Egret anti-M0X antibody; manufactured by Santa Cruz Inc.). That is, the collected S and B were electrophoresed on SDS / 4 ° / »to 20% acrylamide gel (Daiichi Pure Chemicals) (reduction conditions) and then applied to a PVDF membrane (Millipore) using a blotting device. Transcribed. Block ace (Dainippon Pharmaceutical Co., Ltd.) is added to the PVDF membrane after transfer, and blocking is performed.
- biotinylated rabbit herb anti-IgG antibody M2; Sigma
- horseradish baroxidase-labeled streptavidin Amersham Pharmacia
- the expression of the target protein was confirmed using an EGL western blotting detection system (Amersham Pharmacia).
- a band with a molecular weight of 52 ⁇ 0.5 kD was detected in the sample obtained from the cells transfected with pcDNA3.1 / HisB'N0X1-b, but no band was detected in the sample obtained from the cells transfected with the empty vector. It was found that HisB ⁇ N0X1-b was expressed in the pcDNA3.1 / HisB ⁇ N0X1-b transfected cells.
- Example 4 Increased expression of N0X1-b mRNA in synovial cells derived from RA patients
- the primer sequence represented by SEQ ID NO: 5 is a nucleotide sequence encoding a connection site where N0X1 is spliced out, that is, a site where the 432th and 482nd positions of the N0X1 protein are connected, and thus a sequence that does not recognize N0X1. Column. Therefore, the PGR products according to SEQ ID NO: 5 and SEQ ID NO: 6 are N0X1-b specific. Electrophorese the PCR product onto an agarose gel and mix with ethidium
- the R0S productivity was measured by the cytochrome G reduction method.
- empty vector-expressing cells and N0X1-b-expressing cells were placed in a 96-well multi-well plate for cell culture (abbreviated as multi-well plate) at 0.5 x 10 6 cells / 100. 1 / hole. Approximately 12 hours later Under each condition, 4.62 mg / ml of cytochrome C was added in 100 1 / well and mixed, and then the MultiI plate was set in a plate reader, and the absorbance at 550 nm was measured over time. .
- Figure 2 shows the integrated value after one hour.
- N0X1-b-expressing cells have remarkable R0S-producing activity compared to empty vector-expressing cells.
- this activity was significantly suppressed by adding 1 M of diphenylene lodonium chloride (abbreviated as DPI), which is known as a NADPH oxidase inhibitor, 30 minutes before the addition of cytochrome G. ( Figure 2 ).
- DPI diphenylene lodonium chloride
- Figure 2 a NADPH oxidase inhibitor
- the N0X1-b inhibitor DP I was added to the N0X1-b-expressing cells to a final concentration of I juM, and 3 hours later, the same RT-PGR as described above was prepared using a sample prepared by mRNA extraction. As a result, it was revealed that the induction of G0X-2 expression by NOX-1b expression was inhibited by DPI (Fig. 3). G0X-2 expression-inducing ability ⁇ Inhibition by DP I, suggesting that C0X-2 expression was induced via redox regulation by R0S derived from ⁇ -b.
- Example 7 Increased expression of TNF mRNA in N0X1-b expressing cells
- a probe primer encoding the TNFa-specific sequence represented by SEQ ID NO: 11 and SEQ ID NO: 12 was synthesized, and a DNA polymerase (rTaq DNA po) was prepared for each GDNA sample prepared in Example 6. After 1 minute at 94 ° C, the cycle of 94 ° C for 10 seconds, 55 ° C for 20 seconds, and 72 ° C for 30 seconds was performed 45 times using RT-PGR reaction (Lymerase; Toyobo Co., Ltd.). When the PGR reaction product was electrophoresed on agarose gel and DNA was detected by EtBr staining, a band of the size expected to be TNF was confirmed in the sample derived from N0X1-b-expressing cells.
- the increased expression of the polynucleotide of the present invention was found to be an indicator of RA diagnosis because its increased expression is linked to the disease state.
- the polynucleotide of the present invention and the expression of the polypeptide of the present invention encoded by the polynucleotide as an index, it has become possible to carry out an RA diagnosis test.
- the present invention provides a novel oxidase that is specifically expressed in synovial cells derived from RA patients, and is expected to be applicable to an RA diagnosis test using PGR using its specific primer sequence.
- the screening method of the present invention is useful for screening a substance for treating RA and / or a substance for treating osteoarthritis.
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Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/509,622 US7186511B2 (en) | 2002-06-06 | 2003-06-05 | Oxidase |
| CA002480619A CA2480619A1 (en) | 2002-06-06 | 2003-06-05 | Novel oxidase |
| EP03730849A EP1482034A4 (en) | 2002-06-06 | 2003-06-05 | NEW OXIDASE |
| JP2004511514A JP3716858B2 (ja) | 2002-06-06 | 2003-06-05 | 新規オキシダーゼ |
| AU2003242163A AU2003242163A1 (en) | 2002-06-06 | 2003-06-05 | Novel oxidase |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002-165612 | 2002-06-06 | ||
| JP2002165612 | 2002-06-06 | ||
| JP2003060749 | 2003-03-07 | ||
| JP2003-60749 | 2003-03-07 |
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| Publication Number | Publication Date |
|---|---|
| WO2003104454A1 true WO2003104454A1 (ja) | 2003-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2003/007148 Ceased WO2003104454A1 (ja) | 2002-06-06 | 2003-06-05 | 新規オキシダーゼ |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US7186511B2 (ja) |
| EP (1) | EP1482034A4 (ja) |
| JP (1) | JP3716858B2 (ja) |
| AU (1) | AU2003242163A1 (ja) |
| CA (1) | CA2480619A1 (ja) |
| WO (1) | WO2003104454A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014138588A (ja) * | 2007-07-27 | 2014-07-31 | Immatics Biotechnologies Gmbh | 免疫療法用の新規免疫原性エピトープ |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2018119142A1 (en) | 2016-12-21 | 2018-06-28 | Amgen Inc. | Anti-tnf alpha antibody formulations |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000028031A2 (en) * | 1998-11-10 | 2000-05-18 | Emory University | Mitogenic regulators |
| WO2001096390A2 (en) * | 2000-06-09 | 2001-12-20 | Corixa Corporation | Compositions and methods for the therapy and diagnosis of colon cancer |
| WO2002006515A2 (en) * | 2000-07-17 | 2002-01-24 | Diadexus, Inc. | Method of diagnosing, monitoring, staging, imaging and treating colon cancer |
| WO2002081703A2 (en) * | 2000-11-16 | 2002-10-17 | Emory University | Mitogenic oxygenase regulators |
| WO2002103028A2 (en) * | 2001-05-30 | 2002-12-27 | Biomedical Center | In silico screening for phenotype-associated expressed sequences |
-
2003
- 2003-06-05 CA CA002480619A patent/CA2480619A1/en not_active Abandoned
- 2003-06-05 JP JP2004511514A patent/JP3716858B2/ja not_active Expired - Fee Related
- 2003-06-05 EP EP03730849A patent/EP1482034A4/en not_active Withdrawn
- 2003-06-05 US US10/509,622 patent/US7186511B2/en not_active Expired - Fee Related
- 2003-06-05 WO PCT/JP2003/007148 patent/WO2003104454A1/ja not_active Ceased
- 2003-06-05 AU AU2003242163A patent/AU2003242163A1/en not_active Abandoned
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000028031A2 (en) * | 1998-11-10 | 2000-05-18 | Emory University | Mitogenic regulators |
| WO2001096390A2 (en) * | 2000-06-09 | 2001-12-20 | Corixa Corporation | Compositions and methods for the therapy and diagnosis of colon cancer |
| WO2002006515A2 (en) * | 2000-07-17 | 2002-01-24 | Diadexus, Inc. | Method of diagnosing, monitoring, staging, imaging and treating colon cancer |
| WO2002081703A2 (en) * | 2000-11-16 | 2002-10-17 | Emory University | Mitogenic oxygenase regulators |
| WO2002103028A2 (en) * | 2001-05-30 | 2002-12-27 | Biomedical Center | In silico screening for phenotype-associated expressed sequences |
Non-Patent Citations (4)
| Title |
|---|
| "Cell transformation by the superoxide-generating oxidase Moxl", NATURE, vol. 401, no. 6748, 1999, pages 79 - 82, XP002137599 * |
| BABFI B. ET AL.: "A mammalian H+ channel generated through alternative splicing of the NADPH oxidase homolog NOH-1", SCIENCE, vol. 287, no. 5450, 2002, pages 138 - 142, XP002201742 * |
| OSTRAKHOVITCH E.A. ET AL.: "Oxidative stress in rheumatoid arthritis leukocytes: suppression by rutin and other antioxidants and chelators", BIOCHEM. PHARMACOL., vol. 62, no. 6, 2002, pages 743 - 746, XP002971824 * |
| See also references of EP1482034A4 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014138588A (ja) * | 2007-07-27 | 2014-07-31 | Immatics Biotechnologies Gmbh | 免疫療法用の新規免疫原性エピトープ |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2003242163A1 (en) | 2003-12-22 |
| EP1482034A1 (en) | 2004-12-01 |
| US20050124056A1 (en) | 2005-06-09 |
| JPWO2003104454A1 (ja) | 2005-10-06 |
| CA2480619A1 (en) | 2003-12-18 |
| US7186511B2 (en) | 2007-03-06 |
| JP3716858B2 (ja) | 2005-11-16 |
| EP1482034A4 (en) | 2005-09-21 |
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