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2020 Fiscal Year Final Research Report

Elucidation of molecular mechanism underlying NASH-HCC development by oncometabolite in chronic inflammation.

Research Project

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Project/Area Number 19K16749
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 50010:Tumor biology-related
Research InstitutionKumamoto University

Principal Investigator

Arima Kota  熊本大学, 病院, 非常勤診療医師 (10792616)

Project Period (FY) 2019-04-01 – 2021-03-31
Keywords肝癌 / 非アルコール性脂肪性肝炎 / プロスタグランジン
Outline of Final Research Achievements

Hepatocellular carcinoma (HCC) has been mostly occurred in the liver cirrhosis derived from hepatitis virus infection, however, HCC which is occurred in the liver derived from non-alcoholic steatohepatitis (NASH) has been increased recently. In the current study, we found that accumulation of PGE2 signal induced NASH-HCC development in NASH-HCC mice model and PGE2 signal might induce NASH-HCC development through immune cell exhaustion. Further analysis using comprehensive approach could inform research effort of developing NASH-HCC prevention strategies through anti-inflammatory modifications.

Free Research Field

腫瘍生物学、消化器外科学

Academic Significance and Societal Importance of the Research Achievements

これまで肝癌はウイルス性肝炎を介したものが主流であったが、近年は肥満や生活習慣病を背景とした非アルコール性脂肪性肝炎(NASH)を背景としたNASH肝癌が世界中で増加している。従来の肝癌とは全く異なるメカニズムで生じており、発がん予防および治療のため詳細なメカニズム解明が必要であるが、当研究は大腸がんなどに深く関与しているプロスタグランジンシグナルがNASH肝癌の発がん・進展に深く関連している可能性を明らかにした。さらなる解析により、NASH肝癌浸潤の新たな分子メカニズムの解明に繋がる。

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Published: 2022-01-27  

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