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

無細胞合成システムを用いたウイルスタンパク質の翻訳後修飾に関わる宿主因子の同定

Research Project

Project/Area Number 19041075
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

Allocation TypeSingle-year Grants
Review Section Biological Sciences
Research InstitutionNational Institute of Infectious Diseases

Principal Investigator

山本 直樹  National Institute of Infectious Diseases, エイズ研究センター, センター長 (00094053)

Co-Investigator(Kenkyū-buntansha) 梁 明秀  国立感染症研究所, グループ長 (20363814)
Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥15,600,000 (Direct Cost: ¥15,600,000)
Fiscal Year 2008: ¥7,900,000 (Direct Cost: ¥7,900,000)
Fiscal Year 2007: ¥7,700,000 (Direct Cost: ¥7,700,000)
Keywords遺伝子 / ウイルス / 感染症 / 酵素 / 蛋白質
Research Abstract

HIVの粒子形成に関与する宿主因子を同定し、新規の治療標的を明らかにすることを目的とした。とりわけHIV-1 Gagタンパク質の機能的翻訳後修飾に関与する細胞側因子、特にキナーゼおよびユビキチンリガーゼの同定を行った。小麦胚芽無細胞タンパク質合成系により合成されたヒトキナーゼライブラリーおよびユビキチンリガーゼライブラリーを用いて、ウイルスタンパク質のリン酸化またはユビキチン化に関与する細胞側因子を、リン酸化部位結合酵素Pinlを分子プローブとしたハイスループット(HTP)アルファスクリーンにより決定した。またこれらの技術を用いてレトロウイルス構造タンパク質またはアクセサリータンパク質を翻訳後修飾するホスト因子の同定も合わせて行なった。
発現クローニング法を含むさまざまな手法を用いて蛋白因子の同定につとめ、SOCS-1がHIV感染を亢進させること、atypical protein kinase C (PKCζ)がGagのp6のPTAP領域周辺をリン酸化し、宿主のESCRT系タンパク質との相互作用を制御することにより、ウイルスの粒子形成に必須の因子であること、SRPとそのキナーゼがHIV-1の複製に重要であることなどを報告した。さらにPinlとA20がIRF3活動を負に制御しRNAウイルスを抑制すること、などを見出した。一方、新しい阻害剤の開発研究では、低分子CXCR4アンタゴニストKRH-1636の誘導体の中から,より有望なKRH-2731を見出した。
同定された因子については細胞レベルおよび個体レベルにおけるウイルス複製への役割や病原性発現機構との関連について検討し、宿主個体のHIV-1に対する応答機序制御機構の解明をめざすと共に同定された因子を標的とした阻害剤スクリーニングを行っている。

Report

(2 results)
  • 2008 Annual Research Report
  • 2007 Annual Research Report
  • Research Products

    (20 results)

All 2009 2008 2007

All Journal Article (19 results) (of which Peer Reviewed: 19 results) Presentation (1 results)

  • [Journal Article] The prolyl isomerase Pinl stabilizes the human T-cell leukemia virus type 1 (HTLV-1) Tax oncoprotein and promotes malignant transformation.2009

    • Author(s)
      Jeong SJ
    • Journal Title

      Biochem Biophys Res Commun. 381

      Pages: 294-299

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Requirement for microtubule integrity in the SOCS1-mediated intracellular dynamics of HIV-1 Gag.2009

    • Author(s)
      Nishi M
    • Journal Title

      FEBS Lett. 583

      Pages: 1243-1250

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] SOCS1 is an inducible host factor during HIV-1 infection and regulates the intracellular trafficking and stability of HIV-1 Gag.2008

    • Author(s)
      Ryo A
    • Journal Title

      Proc Natl Acad Sci U S A. 105

      Pages: 294-299

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ezrin, Radixin, and Moesin (ERM) proteins function as pleiotropic regulators of human immunodeficiency virus type 1 infection.2008

    • Author(s)
      Kubo Y.
    • Journal Title

      Virology 375

      Pages: 130-140

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Loss of Atg16L1, an autophagy regulator, enhances endotoxin-induced IL-1β production.2008

    • Author(s)
      Saitoh T
    • Journal Title

      Nature 456

      Pages: 264-268

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A new humanized mouse model of Epstein-Barr virus infection that reproduces persistent infection, lymphoproliferative disorder, and cell-mediated and humoral immune responses.2008

    • Author(s)
      Yajima M
    • Journal Title

      J Infect Dis. 198

      Pages: 673-682

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Overexpressed NF-kappaB-inducing kinase contributes to the turaorigenesis of adult T-cell leukemia and Hodgkin Reed-Sternberg cells.2008

    • Author(s)
      Saitoh Y
    • Journal Title

      Blood 111

      Pages: 5118-5129

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Cyclin K/CPR4 inhibits primate lentiviral replication by inactivating Tat/positive transcription elongation factor b-dependent long terminal repeat transcription.2008

    • Author(s)
      Urano E
    • Journal Title

      AIDS 22

      Pages: 1081-1083

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Low-intensity pulsed ultrasound activates the phosphatidylinositol 3 kinase/Akt pathway and stimulates the growth of chondrocytes in three-dimensional cultures : a basic science study.2008

    • Author(s)
      Takeuchi R
    • Journal Title

      Arthritis Res Ther. 10

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The wheat cell-free based screening of protein substrates of calcium/calmodulin-dependent protein kinase II delta.2008

    • Author(s)
      Masaoka T
    • Journal Title

      FEBS Lett. 582

      Pages: 1795-1801

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Enhancement of OX40-induced apoptosis by TNF coactivation in OX40-expressing T celllines in vitro leading to decreased targets for HIV type 1 production2008

    • Author(s)
      Takahashi Y
    • Journal Title

      AIDS Res Hum Retroviruses 24巻

      Pages: 423-435

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ezrin,Radixin,and Moesin(ERM)proteins function as pleiotropic regulators of humanimmunodeficiency virus type 1 infection2008

    • Author(s)
      Kubo Y
    • Journal Title

      Virology 375巻

      Pages: 130-140

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] SOCS1 is an inducible host factor during HIV-1 infection and regulates the intracellular trafficking and stability of HIV-1 Gag2008

    • Author(s)
      Ryo A
    • Journal Title

      Proc Natl Acad Sci U S A 105巻

      Pages: 294-299

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Interleukin-4-transgenic hu-PBL-SCID mice:a model for the screening of antiviral drugs and inmmunotherapeutic agents against X4 HIV-1 viruses2008

    • Author(s)
      Okuma K
    • Journal Title

      J Infect Dis 197巻

      Pages: 134-141

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Inhibitory role of CXCR4 glycan in CD4-independent X4-tropic human immunodeficiencyvirus type 1 infection and its abrogation in CD4-dependent infection2007

    • Author(s)
      Kubo Y
    • Journal Title

      J Gen Virol 88巻

      Pages: 3139-3144

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Hunamized NOD/SCID/IL2Raamna(null)mice transplanted with hematopoietic stem cells under nonmyeloablative conditions show prolonged life spans and allow detailed analysis of human immuoodeficiency virus type 1 pathogenesis2007

    • Author(s)
      Watanabe S
    • Journal Title

      J Virol 81巻

      Pages: 13259-13264

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Identification of the suppressive factors for human immunodeficiency virus type-replication using the siRNA mini-library against host cellular genes2007

    • Author(s)
      Kameoka M
    • Journal Title

      Biochem Biophys Res Commun 359巻

      Pages: 729-734

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Inhibiting lentiviral replication by HEXIM1,a cellular negative regulator of the CDK9/cyclin T complex2007

    • Author(s)
      Shimizu S
    • Journal Title

      AIDS 21巻

      Pages: 575-582

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Efficient induction of HIV-1 replication in latently infected cells through contact with CD4+T cells:involvement of NF-kappaB activation2007

    • Author(s)
      Qi X
    • Journal Title

      Virology 361巻

      Pages: 325-334

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Presentation] Follicular dendritic cells activate HIV-1 replication through a juxtacrine mechanism mediated by P-selectin glycoprotein ligand-1.2008

    • Author(s)
      Ohba K
    • Organizer
      第8回あわじしま感染症・免疫フォーラム
    • Place of Presentation
      兵庫県立淡路夢舞台国際会議場
    • Year and Date
      2008-09-09
    • Related Report
      2008 Annual Research Report

URL: 

Published: 2007-04-01   Modified: 2018-03-28  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi