• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

胆汁輸送・分泌機構に関する分子生物学的研究

Research Project

Project/Area Number 09877101
Research Category

Grant-in-Aid for Exploratory Research

Allocation TypeSingle-year Grants
Research Field Gastroenterology
Research InstitutionAsahikawa Medical College

Principal Investigator

牧野 勲  旭川医科大学, 医学部, 副学長 (60088854)

Co-Investigator(Kenkyū-buntansha) 田中 廣壽  旭川医科大学, 医学部, 助教授 (00171794)
Project Period (FY) 1997 – 1998
Project Status Completed (Fiscal Year 1998)
Budget Amount *help
¥1,900,000 (Direct Cost: ¥1,900,000)
Fiscal Year 1998: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 1997: ¥800,000 (Direct Cost: ¥800,000)
Keywords胆汁酸 / トランスポーター / 分子生物学 / 遺伝子発現 / リン脂質 / 消化器病学
Research Abstract

(1) 有核細胞におけるトランスポーターmdr2,mrp発現系の構築
蛍光蛋白として、オワンクラゲ由来のgreen fluorescent protein(GFP)を用いた。mdr2とGFPを融合蛋白として、mammalian cellで発現可能なプラスミドを作製した。すでに、SV40エンハンサーを有する強制発現プラスミドを作成したが、mdr2-GFPの局在は従来の免疫組織学的手法の結果と異なっており、GFPのポジションなどの問題点がクローズアップされた。現在、様々な発現プラスミドを構築し、細胞内局在との関連から究明中である。かかる点は研究者らが従来開発してきた転写因子のシステムと大きく異なる点であり、申請時予想だにしなかった障害である。
(2) GFPタンパクの蛍光強度の問題が生じ、すでに研究者らが確立した転写因子の実験系を用いて改良を行った。その結果、発現量が少ない場合でもGFP融合タンパクを観察しうる実験系が整備できた。
今後、(1)に述べた実験を早急に実施し、mdr2、mrpとGFPの融合タンパク発現系を用いて胆汁酸輸送・分泌機構の解明をめざす。

Report

(2 results)
  • 1998 Annual Research Report
  • 1997 Annual Research Report
  • Research Products

    (14 results)

All Other

All Publications (14 results)

  • [Publications] Kensaku Okamoto: "Redox regulation of nuclear import of the glucocorticoid receptor." J.Biol.Chem.274(印刷中). (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] Yuichi Makino: "Direct association with thioredoxin allows redox regulation of the glucocorticoid receptor function." J.Biol.Chem.274・5. 3182-3188 (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] PeKKa J.Kallio: "Signal transduction in hypoxic cells: inducible nuclear translocation and recruitment of the CBP/p300 coactivator by the hypoxia-inducible factor-1α." EMB O J.17・22. 6573-6586 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Fuminori Hirano: "Functional interference between Spl and NF-κB through the same DNA binding site" Mol.Cell.Bio1.18. 1266-1274 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Fuminori Hirano: "Alternative splice variants of IκBβ establish differential NF-κB signal responsiveness in human cells." Mol.Cell.Biol.18. 2596-2607 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Masaki Hiramoto: "Nuclear-targeted suppression of NF-κB activity by the novel quinone derivative E3330" J.Immunol.160. 810-819 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Fuminori Hirano: "Functional interference between Sp1 and NF-kB through the same DNA binding site." Mol.Cell.Biol.(印刷中). (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] Masaki Hiramoto: "Nuclear-targeted suppression of NF-kB activity by the novel quinone derivative E3330" J.Immunol.(印刷中). (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] Kensaku Okamoto: "Restoration of the glucocorticoid receptor function by the phosphodiester compound of vitamin C and vitamin E,EPC-K1 via a redox-dependent mechanism." Biochem.Pharmacol.(印刷中). (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] Isao Makino: "From a choletic to an immunomodulator" J.Gastroenterol.Hepatol.(印刷中). (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] Shin-ichi Hayashi: "Functional susceptibility of estrogen receptor by redox change with reference to a role of thioredoxin as a mediator." Nucleic Acid Res.25(20). 4035-4040 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Takako Tani-Kawakami: "Effect of la-hydroxy vitamin D3 on serum levels of thyroid hormonoes in patients with untreated Graves'disease." Metabolism. 46(10). 1184-1188 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Hirotoshi Tanaka: "Molecular Pharmacology of Glucocorticoids" Kyushu Univ.Press(印刷中),

    • Related Report
      1997 Annual Research Report
  • [Publications] Hirotoshi Tanaka: "Redox Regulation of Cell Signaling and its Clinical Applications" Marcel Dekker Inc.(印刷中),

    • Related Report
      1997 Annual Research Report

URL: 

Published: 1997-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi