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2003 Fiscal Year Final Research Report Summary

Molecular biological analysis of the genes related to viral oncogenesis

Research Project

Project/Area Number 14570266
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Virology
Research InstitutionNagasaki University

Principal Investigator

MORIUCHI Ryozo  Nagasaki University, Graduate School of Biomedical Sciences, Department of Molecular Microbiology & immunology, Associate Professor, 大学院・医歯薬学総合研究科, 助教授 (60210142)

Project Period (FY) 2002 – 2003
Keywordsoncogene / T get / ATL / RECK / Invasion activity / NF-κB
Research Abstract

We screened for ATL tumor cell-derived cDNAs with the potential to transform murine fibroblasts, NIH3T3, and succeeded in cloning a trio related transforming gene in ATL tumor cells (Tgat). Tgat was expressed exclusively in leukemic cells of acute or chronic ATL patients and cell lines originating from ATL cells, but the expression could not be detected in PBMCs of healthy volunteers, healthy HTLV-1 carriers, or HTLV-1 infected cell lines established in vitro. Comparison of the cDNA with the human. genome database revealed that Tgat is alternatively transcribed from the Trio-encoding gene (from exons 38 to 46) and spliced to a novel exon located downstream of exon 58. We found that both the Rho-GEF activity and the C-terminal region of Tgat were required for not only transforming but also invasion-inducing activity. These results indicate that Tgat expression contributes to the malignant profiles of ATL tumor cells.

  • Research Products

    (6 results)

All Other

All Publications (6 results)

  • [Publications] 森内 良三: "ATL細胞に発現する新規がん関連遺伝子Tgatの機能"血液フロンティア(特集:ATL〜最近の進歩〜). 14・1. 21-29 (2004)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Tawara M.et al.: "Aberrant processing of Fas transcripts in adult T-cell leukemia : a possible role in tumor cell survival"Cncer Letter. 193・2. 235-242 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Fujita F.et al.: "Inactivation of porcine endogenous retrovirus by human serum as a function of complement activated through the classical pathway"Hepatology Researh. 26・2. 106-113 (2003)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 森内 良三: "ATL細胞特異的ながん関連遺伝子"レトロウイルス研究の最前線. 151-160 (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Tawara M., Maeda T., Yamada Y., Harasawa H., Tsuruda K., Sugahara K., Moriuchi R., Tomonaga M., Kamihira S.: "Aberrant processing of Fas transcripts in adult T -cell leukemia : a possible role in tumor cell survival."Cancer Lett.. 193(2). 235-242 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Fujita F., Yamashita-Futsuki I., Eguchi S., Kamohara Y., Fujioka H., Yar aga K., Furui J., Moriuchi R., Kanematsu T., Katamine S.: "Inactivation of porcine endogenous retrovirus by human serum as -a function of complement activated through the classical pathway."Hepatol Res.. 26(2). 106-113 (2003)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2005-04-19  

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