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新世代抗体を活用する内分泌撹乱物質のハイスループットスクリーニングシステム

Research Project

Project/Area Number 14042204
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

Allocation TypeSingle-year Grants
Review Section Science and Engineering
Research InstitutionTohoku University

Principal Investigator

後藤 順一  東北大学, 医学部附属病院, 教授 (80006337)

Co-Investigator(Kenkyū-buntansha) 丹羽 俊文  東北大学, 医学部, 助教授 (90218248)
小林 典裕  神戸薬科大学, 薬学部, 教授 (90205477)
Project Period (FY) 2002 – 2003
Project Status Completed (Fiscal Year 2003)
Budget Amount *help
¥4,200,000 (Direct Cost: ¥4,200,000)
Fiscal Year 2003: ¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 2002: ¥2,200,000 (Direct Cost: ¥2,200,000)
Keywords内分泌撹乱物質 / ハイスループット / スクリーニング / エストラジオール / 抗体 / 遺伝子クローニング / 相補性決定部 / CDRシャッフリング / ハプテン / モノクローナル抗体 / ELISA
Research Abstract

環境中女性ホルモン様物質の影響を精査するために、エストラジオール(E_2)のハイスループットスクリーニング法が切望され、高親和力で特異的な抗体が求められている。野生型抗体の相補性決定部(CDR)にランダム変異を導入することにより高性能な改変抗体の創製が可能と期待される。そこで、error-prone PCRにより得られる変異CDR遺伝子断片を野生型抗体のフレームワーク(FR)遺伝子にランダムに組み込む"CDRシャッフリング"に基づく変異抗E_2抗体の創製を企てた。先に樹立した抗E_2抗体産生ハイブリドーマ株よりRNAを単離し、RT-PCRによりH鎖及びL鎖可変部(V_H,V_L)遺伝子をクローニングした。これらを連結して一本鎖Fvフラグメント(scFv)の遺伝子を構築し、その産物である野生型scFvを用いて競合ELISAを行った結果、遊離E_2添加量2-200ngにおいて用量作用曲線が得られた。本scFv遺伝子を鋳型として0.5又は1.0mM MnCl_2存在下でerror-prone PCRを行い、変異クローン27種のV_H及びV_L塩基配列を解析したところ、最大13%の高い効率で点変異の導入が認められた。その一方で、V_H、V_L各ドメインに対応する遺伝子の全長をそれぞれ6本の一本鎖合成オリゴDNA(5'側から#1〜#6;およそ60〜120merの範囲)に分解し,これをrecursive PCRに付すことで元のscFv遺伝子が再構成されることを確認した。得られた変異scFv遺伝子群のCDR部分をPCRにより増幅することで、変異CDR遺伝子断片群(#2、3、5に相当)を調製することができる。これらを野生型FR遺伝子断片(#1、#4、#6に相当)と混合してrecursive PCRに付すことで得られるCDRシャッフリングライブラリーから、親和力と特異性に優れる変異抗体の探索が可能と期待される。

Report

(2 results)
  • 2003 Annual Research Report
  • 2002 Annual Research Report
  • Research Products

    (37 results)

All Other

All Publications (37 results)

  • [Publications] Nariyasu Mano: "Inhibition of the rat hepatic microsomal flurbiprofen acyl glucuronidation by bile acids"Journal of Pharmaceutical Sciences. 92. 2098-2108 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Takashi Iida: "^1H and ^<13>C NMR signal assignments of carboxyl-linked glucuronides of bile acids"Magnetic Resonance Chemistry. 41. 250-264 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Takashi Iida: "Functionalization of unactivated carbons in 3α,6- and 3α,24-dihydroxy-5β-cholane derivatives by dimethyldioxirane"Lipids. 38. 281-287 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Nariyasu Mano: "Synthesis and characterization of deoxycholyl 2-deoxyglucuronide : A water-soluble affinity labeling reagent"Lipids. 38. 873-879 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Norihiro Kobayashi: "Idiotype-anti-idiotype based noncompetitive enzyme-linked immunosorbent assay of ursodeoxycholic acid 7-N-acetylglucosaminides in human urine with subfemtomole range sensitivity"Journal of Immunological Methods. 272. 1-10 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Naoto Suzuki: "Determination of urinary 12(S)-hydroxyeicosatetraenoic acid by liquid chromatography/tandem mass spectrometry with column-switching technique : Sex difference in healthy voluntees and patients with diabetes mellitus"Journal of Chromatography B. 783. 383-389 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Lilian Rumi Tsuruta: "Characterization of 11-dehydro-thromboxane B_2 recombinant antibody obtained by phage display technology"Prostaglandins, Leukotrienes & Essential Fatty Acids. 68. 273-284 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Naoto Nakagawa: "Brain and heart specific alteration of methamphetamine(MAP) distribution in MAP-senstized rat"Biological Pharmaceutical Bulletin. 26. 506-509 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Takehiko Suzuki: "Identification and characterization of novel rat and human gonad specific organic anion transporters"Molecular Endocrinology. 17. 1203-1215 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Takashi Iida: "An improved method for the capillary gas chromatographic derivatization of polyhydroxylated steroids having tert-hydroxyl groups"Analytical Sciences. 19. 1317-1321 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Takashi Iida: "A comparative study of remote-oxyfunctionalization of unactivated carbons in 5β-steroids by dimethyldioxirane and 2,6-dichloropyridine N-oxide/Ruthenium porphyrin/HBr"Arkivoc. 2003. 170-179 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Norihiro Kobayashi: "Monoclonal anti-idiotype antibodies recognizing the variable region of a high-affinity antibody agains 11-deoxycortisol. Production, characterization and application to a sensitive noncompetitive immunoassay"Journal of Immunological Methods. 274. 63-75 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Sookie La: "Simultaneous chiral discrimination of multiple profens by cyclodextrin-modifeid capillary electrophoesis in normal and reversed polarity modes"Electrophoresis. 24. 2642-2649 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Nariyasu Mano: "Exopeptidase degradation for the analysis of phosphorylation site in a mono-phosphorylated peptide with matrix-assisted laser desorption mass spectrometry"Analytical Sciences. 19. 1469-1472 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Mami Kida: "Vectorial transport of bile acids in immortalized mouse bile duct cells"Hepatology Research. 27. 151-157 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Nariyasu Mano: "Presence of protein-bound unconjugated bile acids in the cytoplasmic fraction of rat brain"Journal of Lipids Research. 45. 295-300 (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] Nariyasu Mano: "Analysis of the antigen binding site of anti-deoxycholate monoclonal antibody using novel affinity labeling reagent, acyl adenylate"Biochemistry. 43. 2041-2048 (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] Genta Kakiyama: "Chemical synthesis of (22E)-3α,6β,7β-trihydroxy-5β-chol-22-en-24-oic acid and its taurine and glycine conjugates : a major bile acid in the rat"Journal of Lipid Research. 45. 567-573 (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] Tsuyoshi Mikkaichi: "Isolation and characterization of a novel human kidney-specific digoxin transporter and its rat homologue"Proceedings of National Academy of Sciences in USA. in press. (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] Shoujiro Ogawa: "Remote-oxyfunction of unactivated carbons in (5β)-3-oxobile acids by 2,6-dichloropyridine N-oxide catalyzed by ruthenium-porphyrin and HBr : direct lactonization at C-20"Organic Biomolecular Chemistry. in press. (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] Naoto Suzuki: "Quantitative liquid chromatography-tandem mass spectrometric analysis of 11-dehydro TXB_2 in the urine"Prostagrandins & Other Lipid Metabolites. in press. (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] Hiroki Tsukamoto: "Thiazolidinediones increase arachidonic acid release and subsequent prostanoid production in peroxisome proliferator-activated receptor γ-independent manner"Prostagrandins & Other Lipid Metabolites. in press. (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] Mitsuobu Okuyama: "Enzyme-linked immunosorbent assay for monitoring toxic digoxin congeners in milk based on a newly generated monoclonal anti-digoxin"Analytical Chemistry. in press. (2004)

    • Related Report
      2003 Annual Research Report
  • [Publications] Nariyasu Mano: "Characterization of rat liver bile acid acyl glucuronosyltransferase"Steroids. 67. 257-262 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Takashi Iida: "Potential bile acid metabolites. 24.An efficient synthesis of carboxyl-linked glucosides"Lipids. 37. 101-110 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Norihiro Kobayashi: "A monoclonal antibody-based enzyme-linked immunosorbent assay of glycolithocholic acid sulfate in human urine for liver function test"Steroids. 67. 827-833 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Nariyasu Mano: "Rapid and simple quantitative assay method for diastereomeric flurbiprofen glucuronides in the incubation mixture"Journal of Chromatography B. 776. 125-131 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Norihiro Kobayashi: "Single-chain Fv fragments derived from an anti-11-deoxycortisol antibody : Affinity, specificity, and idiotype analysis"Steroids. 67. 733-742 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Sookie La: "Enantioseparation of chiral aromatic amino acids by capillary electrophoresis in neutral and charged cyclodextrin selector modes"Electrophoresis. 23. 4123-4131 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Takashi Iida: "Potential bile acid metabolites.25.Synthesis and chemical property of steueoisomeric 3α,7α,16-and 3α,7α,15-trihydroxy-5β-cholan-24-oic acids"Chemical and Pharmaceutical Bulletin. 50. 1335-1340 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Takashi Iida: "Direct capillary gas chromatographic analysis and thermal stability of carboxy-linked glucosides of bile acids"Chromatographia. 56. 489-494 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Nariyasu Mano: "Separation and determination of diastereomeric flurbiprofen acyl glucuronides in human urine by LC/ESI-MS with a simple column-switching technique"Drug Metabolism and Pharmacokinetics. 17. 142-149 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Norihiro Kobayashi: "Generation of a novel monoclonal antibody against cortisol-[C-4]-bovine serum albumin conjugate : Application to enzyme-linked immunosorbent assay for urinary and serum cortisol"Analytical Sciences. 18. 1309-1314 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Norihiro Kobayashi: "Idiotype-anti-idiotype-based noncompetitive enzyme-linked immunosorbent assay of ursodeoxycholic acid 7-N-acetylglucosaminides in human urine with subfemtomole range sensitivity"Journal of Immunological Methods. 272. 1-10 (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] Norihiro Kobayashi: "Monoclonal anti-idiotype antibodies recognizing the variable region of a high-affinity antibody against 11-deoxycortisol. Production, characterization and application to a sensitive noncompetitive immunoassay"Journal of Immunological Methods. 274. 63-75 (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] Takashi Iida: "Functionalization of unactivated carbons in 3α,6-and 3α,24-dihydroxy-5β-cholan derivatives by dimetyldioxirane"Lipids. (in press). (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] Takashi Iida: "^1H and ^13C signal assignments of carboxyl-linked glucosides of bile acids"Magnetic Resonance in Chemistry. (in press). (2003)

    • Related Report
      2002 Annual Research Report

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Published: 2002-04-01   Modified: 2018-03-28  

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