2021 Fiscal Year Final Research Report
The resesarch on platicity and heterogeneity of hepatocyte in acute liver injury
Project/Area Number |
20K22877
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Research Category |
Grant-in-Aid for Research Activity Start-up
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Allocation Type | Multi-year Fund |
Review Section |
0902:General internal medicine and related fields
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Research Institution | Kyushu University |
Principal Investigator |
Goya Takeshi 九州大学, 大学病院, 特別教員・特任助教 (30884754)
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Project Period (FY) |
2020-09-11 – 2022-03-31
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Keywords | 急性肝不全 / 肝細胞 / 低酸素 |
Outline of Final Research Achievements |
Liver has regenerative capacity and the liver regeneration is associated with pathogenesis of acute live injury. Recently, it is suggested that mature hepatocyte can dedifferentiate and proliferate in liver injury. It is reported that acute liver failure is associated with intrahepatic hypoxia. In the acetaminophen (APAP)-induced liver injury murine model, we showed that intrahepatic hypoxia was also associated with liver injury. In the APAP model, hepatic immature markers , such as Afp, Lgr5, and Prom1, were upregulated. Thus it was considered that the plasticity and heterogeneity of hepatocyte were involved in pathogenesis of acute liver injury with intrahepatic hypoxia.
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Free Research Field |
肝臓病学
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Academic Significance and Societal Importance of the Research Achievements |
急性肝不全は肝移植以外に根本的治療の存在しない予後不良の疾患である。治療法開発には病態解明が必須であるが不明な点が多い。急性肝不全は種々の原因から発症する症候群であり、複数の病型、発症機序の存在が示唆されている。そのため、その病態解明にあたっては病型に応じたアプローチと解釈が必要である。我々の今回の検討から急性肝不全のうち組織低酸素が関与する急性肝障害モデルにおいても、肝細胞の脱分化マーカーの上昇が確認され、同病型にも肝細胞の可塑性、多様性が関与することが示唆された。今後更なる検討が必要であるが未だ治療法の確立されていない急性肝不全の新規治療開発のための有用な知見が得られたと考えている。
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