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2021 Fiscal Year Final Research Report

Development of anti-cancer strategy using IDH gene activation

Research Project

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Project/Area Number 18K07214
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 50010:Tumor biology-related
Research InstitutionOkayama University of Science

Principal Investigator

Kanki Keita  岡山理科大学, 生命科学部, 准教授 (10516876)

Project Period (FY) 2018-04-01 – 2022-03-31
Keywords肝細胞癌 / IDH / 脱分化 / 癌悪性化 / 低酸素応答
Outline of Final Research Achievements

Anti-cancer strategy using isocitrate dehydrogenase (IDH) activation was investigated in hepatocellular carcinoma (HCC) cells. IDH expression in HCC cells paralleled with a differentiation status, being downregulated during dedifferentiation induced by TGF-β signaling, Sonic hedgehog signaling and HDAC activation. Restoration of IDH expression was shown to play a role for inhibiting hypoxic response, an major cellular signaling for cancer progression, in HCC cells. Comparative study of three IDH-subtypes revealed that diverse function of these molecules in cancer cells

Free Research Field

腫瘍生物学

Academic Significance and Societal Importance of the Research Achievements

本研究では癌細胞の脱分化において発現低下するTCA回路代謝酵素の一つであるイソクエン酸脱水素酵素(IDH)に着目し、その発現賦活化により癌細胞悪性化を抑止する機構を明らかにすることを目的とした。IDHについては腫瘍学分野では癌促進作用のある変異型IDHについての研究が広く進められているが、それに比べ野生型IDHの癌細胞における働きについてはあまり知られていない。本研究で野生型IDHの低酸素応答抑制作用や、サブタイプによる違いを明らかにしたことは、IDH変異の報告のない癌種において共有される貴重な情報となる。

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Published: 2023-01-30  

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