JP6141281B2 - 抗c.ディフィシル毒素抗体および関連方法 - Google Patents
抗c.ディフィシル毒素抗体および関連方法 Download PDFInfo
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- JP6141281B2 JP6141281B2 JP2014530007A JP2014530007A JP6141281B2 JP 6141281 B2 JP6141281 B2 JP 6141281B2 JP 2014530007 A JP2014530007 A JP 2014530007A JP 2014530007 A JP2014530007 A JP 2014530007A JP 6141281 B2 JP6141281 B2 JP 6141281B2
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- difficile
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- 238000000034 method Methods 0.000 title claims description 10
- 239000003053 toxin Substances 0.000 title description 18
- 231100000765 toxin Toxicity 0.000 title description 18
- 101710182223 Toxin B Proteins 0.000 claims description 44
- 230000003472 neutralizing effect Effects 0.000 claims description 22
- 102000007079 Peptide Fragments Human genes 0.000 claims description 21
- 108010033276 Peptide Fragments Proteins 0.000 claims description 21
- 230000001147 anti-toxic effect Effects 0.000 claims description 16
- 208000015181 infectious disease Diseases 0.000 claims description 12
- 241000193163 Clostridioides difficile Species 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 8
- 102000007056 Recombinant Fusion Proteins Human genes 0.000 claims description 6
- 108010008281 Recombinant Fusion Proteins Proteins 0.000 claims description 6
- 108700022831 Clostridium difficile toxB Proteins 0.000 claims description 5
- 108090000765 processed proteins & peptides Proteins 0.000 claims description 5
- 239000012472 biological sample Substances 0.000 claims description 4
- 102000004196 processed proteins & peptides Human genes 0.000 claims description 4
- 238000003745 diagnosis Methods 0.000 claims description 3
- 229920001184 polypeptide Polymers 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000003053 immunization Effects 0.000 claims description 2
- 238000001727 in vivo Methods 0.000 claims 1
- 108700012359 toxins Proteins 0.000 description 18
- 239000012634 fragment Substances 0.000 description 13
- 201000010099 disease Diseases 0.000 description 10
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 10
- 230000004044 response Effects 0.000 description 10
- 238000006386 neutralization reaction Methods 0.000 description 8
- 210000002966 serum Anatomy 0.000 description 8
- 102100021324 5-azacytidine-induced protein 2 Human genes 0.000 description 6
- 108090001007 Interleukin-8 Proteins 0.000 description 6
- 101710084578 Short neurotoxin 1 Proteins 0.000 description 6
- 101710182532 Toxin a Proteins 0.000 description 6
- 206010012735 Diarrhoea Diseases 0.000 description 5
- 230000000890 antigenic effect Effects 0.000 description 5
- 150000001413 amino acids Chemical class 0.000 description 4
- 239000003242 anti bacterial agent Substances 0.000 description 4
- 229940088710 antibiotic agent Drugs 0.000 description 4
- 210000004027 cell Anatomy 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000010171 animal model Methods 0.000 description 3
- 230000005875 antibody response Effects 0.000 description 3
- 238000000338 in vitro Methods 0.000 description 3
- 231100000331 toxic Toxicity 0.000 description 3
- 230000002588 toxic effect Effects 0.000 description 3
- 239000013598 vector Substances 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 241000283973 Oryctolagus cuniculus Species 0.000 description 2
- 125000003275 alpha amino acid group Chemical group 0.000 description 2
- 238000003556 assay Methods 0.000 description 2
- 210000004978 chinese hamster ovary cell Anatomy 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000013507 mapping Methods 0.000 description 2
- 244000005706 microflora Species 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007918 pathogenicity Effects 0.000 description 2
- 108020003175 receptors Proteins 0.000 description 2
- 102000005962 receptors Human genes 0.000 description 2
- 229960005486 vaccine Drugs 0.000 description 2
- FWMNVWWHGCHHJJ-SKKKGAJSSA-N 4-amino-1-[(2r)-6-amino-2-[[(2r)-2-[[(2r)-2-[[(2r)-2-amino-3-phenylpropanoyl]amino]-3-phenylpropanoyl]amino]-4-methylpentanoyl]amino]hexanoyl]piperidine-4-carboxylic acid Chemical compound C([C@H](C(=O)N[C@H](CC(C)C)C(=O)N[C@H](CCCCN)C(=O)N1CCC(N)(CC1)C(O)=O)NC(=O)[C@H](N)CC=1C=CC=CC=1)C1=CC=CC=C1 FWMNVWWHGCHHJJ-SKKKGAJSSA-N 0.000 description 1
- 102000007469 Actins Human genes 0.000 description 1
- 108010085238 Actins Proteins 0.000 description 1
- 241001112695 Clostridiales Species 0.000 description 1
- 206010009657 Clostridium difficile colitis Diseases 0.000 description 1
- 241000699802 Cricetulus griseus Species 0.000 description 1
- 101710112752 Cytotoxin Proteins 0.000 description 1
- 238000012286 ELISA Assay Methods 0.000 description 1
- 101710146739 Enterotoxin Proteins 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 102000013446 GTP Phosphohydrolases Human genes 0.000 description 1
- 108091006109 GTPases Proteins 0.000 description 1
- 241000282412 Homo Species 0.000 description 1
- 206010067993 Mucosal necrosis Diseases 0.000 description 1
- 241000588653 Neisseria Species 0.000 description 1
- 208000003100 Pseudomembranous Enterocolitis Diseases 0.000 description 1
- 206010037128 Pseudomembranous colitis Diseases 0.000 description 1
- 241000831652 Salinivibrio sharmensis Species 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 208000038016 acute inflammation Diseases 0.000 description 1
- 230000006022 acute inflammation Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000000427 antigen Substances 0.000 description 1
- 108091007433 antigens Proteins 0.000 description 1
- 102000036639 antigens Human genes 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000003833 cell viability Effects 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 206010009887 colitis Diseases 0.000 description 1
- 230000000112 colonic effect Effects 0.000 description 1
- 231100000599 cytotoxic agent Toxicity 0.000 description 1
- 239000002619 cytotoxin Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000147 enterotoxin Substances 0.000 description 1
- 231100000655 enterotoxin Toxicity 0.000 description 1
- 230000008378 epithelial damage Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000002095 exotoxin Substances 0.000 description 1
- 231100000776 exotoxin Toxicity 0.000 description 1
- 239000013604 expression vector Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000028993 immune response Effects 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 238000002649 immunization Methods 0.000 description 1
- 230000016784 immunoglobulin production Effects 0.000 description 1
- 230000000968 intestinal effect Effects 0.000 description 1
- 210000002490 intestinal epithelial cell Anatomy 0.000 description 1
- 210000000936 intestine Anatomy 0.000 description 1
- 230000003834 intracellular effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001404 mediated effect Effects 0.000 description 1
- 230000004677 mucosal permeability Effects 0.000 description 1
- 210000001672 ovary Anatomy 0.000 description 1
- 230000008506 pathogenesis Effects 0.000 description 1
- 230000001717 pathogenic effect Effects 0.000 description 1
- 239000013610 patient sample Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 231100000654 protein toxin Toxicity 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000000306 recurrent effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 230000028327 secretion Effects 0.000 description 1
- 239000013605 shuttle vector Substances 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 229940126622 therapeutic monoclonal antibody Drugs 0.000 description 1
- 125000000341 threoninyl group Chemical group [H]OC([H])(C([H])([H])[H])C([H])(N([H])[H])C(*)=O 0.000 description 1
- 238000002255 vaccination Methods 0.000 description 1
- 230000035899 viability Effects 0.000 description 1
- 239000000304 virulence factor Substances 0.000 description 1
- 230000007923 virulence factor Effects 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/195—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from bacteria
- C07K14/33—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from bacteria from Clostridium (G)
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K39/00—Medicinal preparations containing antigens or antibodies
- A61K39/02—Bacterial antigens
- A61K39/08—Clostridium, e.g. Clostridium tetani
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
- A61P31/04—Antibacterial agents
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K16/00—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies
- C07K16/12—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies against material from bacteria
- C07K16/1267—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies against material from bacteria from Gram-positive bacteria
- C07K16/1282—Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies against material from bacteria from Gram-positive bacteria from Clostridium (G)
-
- 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
- G01N33/569—Immunoassay; Biospecific binding assay; Materials therefor for microorganisms, e.g. protozoa, bacteria, viruses
- G01N33/56911—Bacteria
-
- 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
- G01N2333/195—Assays involving biological materials from specific organisms or of a specific nature from bacteria
- G01N2333/33—Assays involving biological materials from specific organisms or of a specific nature from bacteria from Clostridium (G)
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2469/00—Immunoassays for the detection of microorganisms
- G01N2469/20—Detection of antibodies in sample from host which are directed against antigens from microorganisms
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Immunology (AREA)
- General Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Organic Chemistry (AREA)
- Molecular Biology (AREA)
- Biochemistry (AREA)
- Engineering & Computer Science (AREA)
- Microbiology (AREA)
- Pharmacology & Pharmacy (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- Biophysics (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Genetics & Genomics (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Urology & Nephrology (AREA)
- Epidemiology (AREA)
- Mycology (AREA)
- Tropical Medicine & Parasitology (AREA)
- Biotechnology (AREA)
- Cell Biology (AREA)
- Virology (AREA)
- Gastroenterology & Hepatology (AREA)
- Food Science & Technology (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Pathology (AREA)
- Communicable Diseases (AREA)
- Oncology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Peptides Or Proteins (AREA)
- Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
Description
本出願は2011年9月13日に出願された米国特許仮出願61/534,298号の35U.S.C.119(e)に基づく利益を主張するものであり、この仮出願はその全体があたかも本明細書に完全に記載されるかのように出典明示によって本明細書に援用される。
本発明は、国立衛生研究所により授与された助成金番号R01HL084489による政府の助成によってなされた。政府は、本発明に一定の権利を有している。
ASIGETIIDDKNYYFNQS- 1874〜1891(配列番号1)
EDGFKYFAPANTLDEN- 1902〜1917(配列番号2)
IGDYKYFNSDGVMQK- 1972〜1987(配列番号3)
YKYFAPANTVNDNIYG- 2168〜2183(配列番号4)
ESDKYYFNPETKKA- 2218〜2231(配列番号5)
QNTLDENFEGESINYT- 2308〜2323(配列番号6)
DDNGIVQIGVFDTSDGYKYFAPANTVNDNIYGQAVEYSGLVRVGEDVYYFGETYTIETGWIYDMENESDKYYFNPETKKACKGINLIDDIKYYFDEKGIMRTGLISFENNNYYFNENGEMQFGYINIEDKMFYFGEDGVMQIGVFNTPDGFKYFAHQNTLDENFEGESINYTGWLDLDEKRYYFTDEYIA(配列番号7)
DENGLVQIGVFDTSDGYKYFAPANTVNDNIYGQAVEYSGLVRVGEDVYYFGETYTIETGWIYDMENESDKYYFDPETKKAYKGINVIDDIKYYFDENGIMRTGLITFEDNHYYFNEDGIMQYGYLNIEDKTFYFSEDGIMQIGVFNTPDGFKYFAHQNTLDENFEGESINYTGWLDLDEKRYYFTDEYIA(配列番号8)
Claims (6)
- 組換えタンパク質を可溶型で含む組成物であって、前記組換えタンパク質がクロストリジウム・ディフィシル(Clostridium difficile)の毒素Bタンパク質の一部分を含み、毒素Bタンパク質の前記一部分が配列番号1〜10の何れか一からなる、組成物。
- クロストリジウム・ディフィシルの毒素Bに対する中和抗毒素を生成させる方法であって、
a)
i)可溶型で発現される、配列番号1〜10の何れか一からなる、クロストリジウム・ディフィシルの毒素Bタンパク質の一部分を含む精製された組換えタンパク質、および
ii)非ヒト宿主
を提供すること;並びに
b)クロストリジウム・ディフィシルの毒素Bを中和する能力がある抗毒素がインビボで生成されるように、前記非ヒト宿主を前記組換えタンパク質で免疫すること
を含む方法。 - 配列番号1〜10の何れか一からなる単離ポリペプチド。
- 配列番号1〜10の何れか一からなる1つまたは複数のペプチド断片に対して生成された少なくとも一の抗体を含む、クロストリジウム・ディフィシルの毒素Bを中和する方法に使用するための組成物であって、方法が前記毒素Bを前記抗体と接触させることを含む、組成物。
- C.ディフィシル(C. difficile)感染の診断を補助する方法であって、(a)対象の生体試料を少なくとも1つのペプチド断片と接触させる工程であって、前記少なくとも1つのペプチド断片は配列番号1〜10の何れか一から選択され、前記ペプチド断片は抗毒素B抗体のエピトープを含む、工程;および
(b)抗原抗体複合体の形成を検出する工程を含む方法。 - 少なくとも一のペプチド断片を含む、C.ディフィシル感染を診断するためのキットであって、前記少なくとも1つのペプチド断片は配列番号1〜10の何れか一から選択され、前記ペプチド断片は抗C.ディフィシル毒素B抗体のエピトープを含む、キット。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201161534298P | 2011-09-13 | 2011-09-13 | |
US61/534,298 | 2011-09-13 | ||
PCT/US2012/055228 WO2013040254A2 (en) | 2011-09-13 | 2012-09-13 | Anti-c.difficile toxin antibodies and associated methods |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2014527966A JP2014527966A (ja) | 2014-10-23 |
JP6141281B2 true JP6141281B2 (ja) | 2017-06-07 |
Family
ID=47883973
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2014530007A Expired - Fee Related JP6141281B2 (ja) | 2011-09-13 | 2012-09-13 | 抗c.ディフィシル毒素抗体および関連方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US9957305B2 (ja) |
EP (1) | EP2755682A4 (ja) |
JP (1) | JP6141281B2 (ja) |
WO (1) | WO2013040254A2 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10709758B2 (en) | 2015-09-03 | 2020-07-14 | The Board Of Regents Of The University Of Oklahoma | Peptide inhibitors of clostridium difficile toxin B (TcdB) toxin |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5919665A (en) * | 1989-10-31 | 1999-07-06 | Ophidian Pharmaceuticals, Inc. | Vaccine for clostridium botulinum neurotoxin |
CA2592015A1 (en) * | 2004-12-27 | 2006-07-06 | Progenics Pharmaceuticals (Nevada), Inc. | Orally deliverable and anti-toxin antibodies and methods for making and using them |
WO2011063346A1 (en) * | 2009-11-20 | 2011-05-26 | Northshore University Health System Research Institute | Targeting of the c-terminal segment of c. difficile toxin b for improved clinical diagnosis, prevention, and treatment |
US8906635B2 (en) * | 2011-02-28 | 2014-12-09 | Northshore University Healthsystem | Methods of diagnosing Clostridium difficile infection |
-
2012
- 2012-09-13 EP EP12832097.5A patent/EP2755682A4/en not_active Withdrawn
- 2012-09-13 US US14/344,749 patent/US9957305B2/en not_active Expired - Fee Related
- 2012-09-13 JP JP2014530007A patent/JP6141281B2/ja not_active Expired - Fee Related
- 2012-09-13 WO PCT/US2012/055228 patent/WO2013040254A2/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
JP2014527966A (ja) | 2014-10-23 |
EP2755682A2 (en) | 2014-07-23 |
EP2755682A4 (en) | 2015-07-01 |
US20150104454A1 (en) | 2015-04-16 |
WO2013040254A3 (en) | 2014-05-15 |
US9957305B2 (en) | 2018-05-01 |
WO2013040254A2 (en) | 2013-03-21 |
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