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レチノイド核内受容体RXRα遺伝子改変マウスを用いた肝発癌機序の解析

Research Project

Project/Area Number 25460987
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Gastroenterology
Research InstitutionGifu University

Principal Investigator

森脇 久隆  岐阜大学, 医学(系)研究科(研究院), 教授 (50174470)

Co-Investigator(Kenkyū-buntansha) 清水 雅仁  岐阜大学, 医学部附属病院, 講師 (90402198)
高井 光治  岐阜大学, 医学部附属病院, 助教 (70402196)
Project Period (FY) 2013-04-01 – 2014-03-31
Project Status Discontinued (Fiscal Year 2013)
Budget Amount *help
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords非環式レチノイド / 核内受容体異常 / 肝発癌 / RXRの遺伝子改変マウス
Research Abstract

1. リン酸化型RXRα蛋白発現がマウスES細胞に及ぼす影響:はじめに、doxycycline投与によってリン酸化型RXRαの発現調節が可能なクローニングベクターを作製し、リン酸化型RXRα誘導性ES細胞およびマウスの作製を作成した。リン酸化型RXRα蛋白がRARE, RXRE, PPREプロモーター活性に及ぼす影響について検討したところ、RXRE, PPRE活性の明らかな低下を認めたが、RAREへの影響は認めなかった。次に、マウスES細胞を分化培地で培養し、doxycycline投与の有無による細胞増殖への影響について検討したところ、リン酸化型RXRα蛋白発現群では、非投与群に比べて優位な細胞増殖の増加を認めた。また、リン酸化型RXRα蛋白発現群では、alkalinephosphatase染色に陽性を示す、比較的未分化な形態を保った細胞の出現を認めた。
2. リン酸化型RXRα蛋白の肝発癌感受性に関する研究:我々が作成したトランスジェニックマウスを、リン酸化型RXRα mutant発現群(Rxrα/+; Rosa/+)と対照群(Rosa/+)の2群に分け、Diethylnitrosamine(DEN: 25mg/kg、生後15日腹腔内投与)で肝腫瘍を誘発した後、4週齢より0.2% doxycyclineを飲水投与し、月齢6ヶ月にて屠殺を行った。各群の肝腫瘍発生率、腫瘍最大径、総腫瘍数について肉眼的に評価を行ったところ、肝腫瘍は各群とも全例に認められたが、総腫瘍数についてはRxrα/+; Rosa/+群において、Rosa/+群と比べ明らかな増加を認めた。また、腫瘍最大径、肝重量についてもRxrα/+; Rosa/+群での増加を認めた。以上の結果から、リン酸化型RXRα蛋白はDEN誘発肝腫瘍形成の過程において促進的に影響しうる可能性が考えられた。

Report

(1 results)
  • 2013 Annual Research Report
  • Research Products

    (18 results)

All 2014 2013

All Journal Article (11 results) (of which Peer Reviewed: 11 results) Presentation (7 results)

  • [Journal Article] Pharmaceutical and nutraceutical approaches for preventing liver carcinogenesis: chemoprevention of hepatocellular carcinoma using acyclic retinoid and branched-chain amino acids.2014

    • Author(s)
      Shimizu M, Shirakami Y, Hanai T, Imai K, Suetsugu A, Takai K, Shiraki M, Moriwaki H.
    • Journal Title

      Mol Nutr Food Res.

      Volume: 58 Issue: 1 Pages: 124-135

    • DOI

      10.1002/mnfr.201300538

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Premature termination of reprogramming in vivo leads to cancer development through altered epigenetic regulation.2014

    • Author(s)
      Ohnishi K, Semi K, Yamamoto T, Shimizu M, Tanaka A, Mitsunaga K, Okita K, Osafune K, Arioka Y, Maeda T, Soejima H, Moriwaki H, Yamanaka S, Woltjen K, Yamada Y.
    • Journal Title

      Cell

      Volume: 156 Issue: 4 Pages: 663-677

    • DOI

      10.1016/j.cell.2014.01.005

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Non-alcoholic steatohepatitis and preneoplastic lesions develop in the liver of obese and hypertensive rats: Suppressing effects of EGCG on the development of liver lesions.2014

    • Author(s)
      Kochi T, Shimizu M, Terakura D, Baba A, Ohno T, Kubota M, Shirakami Y, Tsurumi H, Tanaka T, Moriwaki H.
    • Journal Title

      Cancer Lett

      Volume: 342 Issue: 1 Pages: 60-69

    • DOI

      10.1016/j.canlet.2013.08.031

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Free fatty acid as a marker of energy malnutrition in liver cirrhosis.2013

    • Author(s)
      Hanai T, Shiraki M, Nishimura K, Imai K, Suetsugu A, Takai K, Shimizu M, Naiki T, Moriwaki H.
    • Journal Title

      Hepatol Res.

      Volume: 44 Issue: 2 Pages: 218-228

    • DOI

      10.1111/hepr.12112

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Chemical-induced Carcinogenesis.2013

    • Author(s)
      Tanaka T, Shimizu M, Moriwaki H.
    • Journal Title

      J Exp Clin Med

      Volume: 5 Pages: 203-209

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Hepatocellular carcinoma patients with increased oxidative stress levels are prone to recurrence after curative treatment: a prospective case series study using the d-ROM test.2013

    • Author(s)
      Suzuki Y, Imai K, Takai K, Hanai T, Hayashi H, Naiki T, Nishigaki Y, Tomita E, Shimizu M, Moriwaki H.
    • Journal Title

      J Cancer Res Clin Oncol

      Volume: 139 Issue: 5 Pages: 845-852

    • DOI

      10.1007/s00432-013-1389-1

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] (-)-Epigallocatechin-3-gallate suppresses hepatic preneoplastic lesions developed in a novel rat model of non-alcoholic steatohepatitis.2013

    • Author(s)
      Sumi T, Shirakami Y, Shimizu M, Kochi T, Ohno T, Kubota M, Shiraki M, Tsurumi H, Tanaka T, Moriwaki H.
    • Journal Title

      SpringerPlus

      Volume: 2 Pages: 690-690

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The effect of acyclic retinoid on the metabolomic profiles of hepatocytes and hepatocellular carcinoma cells2013

    • Author(s)
      Xian-Yang Qin, Feifei Wei, Masaru Tanokura, Naoto Ishibashi, Masahito Shimizu, Hisataka Moriwaki, Soichi Kojima
    • Journal Title

      PLoS ONE

      Volume: 8 Issue: 12 Pages: e82860-e82860

    • DOI

      10.1371/journal.pone.0082860

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Enhanced development of azoxymethane-induced colonic preneoplastic lesions in hypertensive rats.2013

    • Author(s)
      Takahiro Kochi, Masahito Shimizu, Tomohiko Ohno, Atsushi Baba, Takafumi Sumi, Masaya Kubota, Yohei Shirakami, Hisashi Tsurumi, Takuji Tanaka, and Hisataka Moriwaki
    • Journal Title

      Int. J. Mol. Sci.

      Volume: 14 Issue: 7 Pages: 14700-14711

    • DOI

      10.3390/ijms140714700

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effects of indoleamine 2, 3-dioxygenase deficiency on high-fat diet-induced hepatic inflammation2013

    • Author(s)
      Nagano J, Shimizu M, Hara T, Shirakami Y, Kochi T, Nakamura N, Ohtaki H, Ito H, Tanaka T, Tsurumi H, Saito K, Seishima M, Moriwaki H
    • Journal Title

      PLoS One

      Volume: 9;8(9) Issue: 9 Pages: e73404-e73404

    • DOI

      10.1371/journal.pone.0073404

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Synergistic growth inhibition by acyclic retinoid and phosphatidylinositol 3-kinase inhibitor in human hepatoma cells.2013

    • Author(s)
      Baba A, Shimizu M, Ohno T, Shirakami Y, Kubota M, Kochi T, Terakura D, Tsurumi H, Moriwaki H.
    • Journal Title

      BMC Cancer

      Volume: 13 Issue: 1 Pages: 465-465

    • DOI

      10.1186/1471-2407-13-465

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Presentation] Preventive effects of branched-chain amino acids supplementation on the spontaneous development of hepatic preneoplastic lesions in C57BL/KsJ-db/db obese mice2013

    • Author(s)
      Shimizu M, Terakura D, Kochi T, Ohno T, Kubota M, Shirakami Y, Tanaka T, Moriwaki H
    • Organizer
      104th AACR (American Association for Cancer Research) Annual Meeting
    • Place of Presentation
      Washington, DC, USA
    • Related Report
      2013 Annual Research Report
  • [Presentation] ワークショップ「炎症および傷害物質に関連した発がんと予防」 肝および内臓脂肪の炎症制御を介した分岐鎖アミノ酸による肥満・糖尿病関連肝腫瘍形成の抑制2013

    • Author(s)
      清水雅仁、寺倉大志、河内隆宏、白上洋平、田中卓二、森脇久隆
    • Organizer
      第20回日本がん予防学会
    • Place of Presentation
      東京
    • Related Report
      2013 Annual Research Report
  • [Presentation] ワークショップ「炎症および傷害物質に関連した発がんと予防」 非アルコール性脂肪肝炎関連肝発癌新規モデルとペントキシフィリンによる発癌抑制効果2013

    • Author(s)
      白上洋平、清水雅仁、森脇久隆、清島満
    • Organizer
      第20回日本がん予防学会
    • Place of Presentation
      東京
    • Related Report
      2013 Annual Research Report
  • [Presentation] シンポジウム「レチノイド研究温故知新―レチノイドの新たな作用点を求めて―」 非環式レチノイドによる肝発癌化学予防 ―Chemoprevention of hepatocellular carcinoma by acyclic retinoid―2013

    • Author(s)
      清水雅仁、森脇久隆
    • Organizer
      日本レチノイド研究会第24回学術集会
    • Place of Presentation
      東京
    • Related Report
      2013 Annual Research Report
  • [Presentation] Chemoprevention of obesity- and diabetes-related liver carcinogenesis by branched-chain amino acids and acyclic retinoid2013

    • Author(s)
      Shimizu M, Moriwaki H
    • Organizer
      The 3rd AACR International Conference on Frontiers in Basic Cancer Research
    • Place of Presentation
      National Harbor, MD, USA
    • Related Report
      2013 Annual Research Report
  • [Presentation] パネルディスカッション1「C型肝炎を背景とした肝細胞癌―予防から再発治療まで―」 非環式レチノイドと分岐鎖アミノ酸を用いた肝発癌抑制―肥満関連肝発癌抑制と両剤の併用投与による相乗的肝癌細胞増殖抑制―2013

    • Author(s)
      清水雅仁、白上洋平、森脇久隆
    • Organizer
      JDDW2013
    • Place of Presentation
      東京
    • Related Report
      2013 Annual Research Report
  • [Presentation] NASH・肥満関連分子異常を標的とした肝癌再発予測と肝発癌化学予防2013

    • Author(s)
      清水雅仁、森脇久隆
    • Organizer
      JDDW2013
    • Place of Presentation
      東京
    • Related Report
      2013 Annual Research Report

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Published: 2014-07-25   Modified: 2019-07-29  

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