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肝癌血管新生のメカニズムの研究及び治療への応用

Research Project

Project/Area Number 08670560
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Gastroenterology
Research InstitutionThe University of Tokyo

Principal Investigator

大西 真  東京大学, 医学部・附属病院, 講師 (00183236)

Project Period (FY) 1996 – 1998
Project Status Completed (Fiscal Year 1998)
Budget Amount *help
¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 1998: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1997: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1996: ¥900,000 (Direct Cost: ¥900,000)
Keywords肝癌 / 血管新生 / VEGF / TNP-470
Research Abstract

肝癌は血管新生に富む腫瘍であるが、血管新生にVESF(Vascnlar Endotheal Growth Factor)が関与してるかを検討した。ノーザンブロット法および免疫組織染色法により、検討した。肝癌組織が肝癌細胞株において、VEGFの強い発現をみとめ、血管新生へのVESFの関与が示唆された。又、ウエスタンブロッテイング法にて肝癌細胞株からのVEGFの分泌が確認された。VEGFのレセプター(flt)の発現は、環癌部では無く、肝非実質細胞で、強い発現をみとめた。この結果から、VEGFが肝癌の血管新生に関与しており、肝癌の血管新生はパラクライン機構でおこる肝癌の増殖に関与していると考えられた。
一方、血管新生を抑制するカンギオインヒビンが、肝癌の新しい治療法となりうるかを、ウッドチャック肝癌の*を用いて、検討した。局所及び全身投与で、肝腫瘍の縮小効果が確認された。
又、肝動脈を介しての、カンギオインヒビンによる栓塞療法でも有効性が確認された。
今後はVEGFの作用を抑制することにより、肝癌の治療が可能となるならかを、検討する予定である。
又、VEGFのレセプターの働もをブロックすることも、有効な治療となりうる。
VEGFを発現(追利に)させた。トランスジーニックマウスでの解析も同時に行っている。

Report

(4 results)
  • 1998 Annual Research Report   Final Research Report Summary
  • 1997 Annual Research Report
  • 1996 Annual Research Report
  • Research Products

    (14 results)

All Other

All Publications (14 results)

  • [Publications] M.Kuroda、S.Ohnishi et alo.: "Colocalization of Vascular Endothelial Growth Factor and Innlon in Pancreatic Islet Cells"Journal of Clinical Endocrinology and Metabolism. 80. 3196-3200 (1995)

    • Related Report
      1998 Final Research Report Summary
  • [Publications] H.Miura、S.Ohnishi et al.: "Increased Expression of Vascular Endothelial Growth Factor in Human Hepatocellular Carcinoma"Journal of Hepatology. 27. 854-861 (1997)

    • Related Report
      1998 Final Research Report Summary
  • [Publications] Shin Ohnisn et al: "Angiogenesis Inhibitor TNP-470 Suppresses the Growth of Woodchuck Hepatocellurar Carcinoma"Journal of Gastroenterology. (in press). (1997)

    • Related Report
      1998 Final Research Report Summary
  • [Publications] Hideaki Miura,Shin Ohnishi etc.: "Increased Expression of Vascular Endothelial Growth Factor in Human Hepatocellulor Carcthona" Journal of Hepatology. 27(5). 854-861 (1997)

    • Related Report
      1998 Annual Research Report
  • [Publications] Toshiaki Gunji,Shin Ohnishi etc.: "Treatment of Hepatocellular Carcinama by Transcatheter Arterial Embolization with Autologous Blood Crot" Gastroenterology. 112(4). 1276 (1997)

    • Related Report
      1998 Annual Research Report
  • [Publications] Kazumasa Hiroshi,Shin Ohnishi: "Cytotoxic T Lymphocyte Response and Viral Load in Hepatitis C Viras Infection" Hepatology. 25(3). 705-712 (1997)

    • Related Report
      1998 Annual Research Report
  • [Publications] Noriko Nakajima,Shin Ohnishi etc.: "Hybridization-AT-Tailing (HybrAT) Method for Sensitive and Strand-specific Detection of DNA and RVA" Biochemical and Biophysical Research Communication. 248. 613-620 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Hideaki Miura, Shin Ohnishi et al.: "Increased Expression of VEGF in Human Hepatocellular Carcinoma" Journal of Hepatology. Vol.27-5. 854-886 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Masahiko Kuroda, Shin Ohnishi et al..: "Co-localization of VEGF and Insulin in Pancrlatic Islet cells" Journal of Clinical Endocnirolosy and Metabolisn. Vol.80-11. 3196-3200 (1995)

    • Related Report
      1997 Annual Research Report
  • [Publications] Kuroda M Ohinishi S et al.: "Cslocalization of Vascular Endothelial Graith Factor and Insulin in Pancreatic Islet cells" Journal of Clinical Endocrinology and Metabolism. 80. 3196-3200 (1995)

    • Related Report
      1996 Annual Research Report
  • [Publications] Kita M Ohnishi S et al.: "HLA B44-restricted Cytotoxic T Lymphocytes Response to the Peptide of HCJ Nucleoprotein Residues 81-100 in Peplidesuith CAH C" Journal of Gastroenterology. 30. 809-812 (1995)

    • Related Report
      1996 Annual Research Report
  • [Publications] Kita M Ohnishi S et al.: "A Helper T cell Artgen Enhances Generation of Hepatitis C Virus Specific cytotoxic T Lymphocytes in vivo" Journal of Medical Virology. 45. 368-391 (1995)

    • Related Report
      1996 Annual Research Report
  • [Publications] Yoshimi F Ohnishi S et al.: "Comparison of Hepatectomy and Transcatheter Arterial Chemoemoembo lization for the Treatment of Hepatocellular Ca" Hepatology. 16. 702-706 (1992)

    • Related Report
      1996 Annual Research Report
  • [Publications] Gunji T Ohnishi S et al.: "Treatment of Hepatocellular Carcinoma Associated with Advanced cirrhosis by Transcatheter Arterial Chemoemoembolization" Hepatology. 15. 252-257 (1992)

    • Related Report
      1996 Annual Research Report

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Published: 1996-04-01   Modified: 2016-04-21  

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