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2019 Fiscal Year Final Research Report

Analysis of promoting factor of liver regeneration in ALPPS

Research Project

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Project/Area Number 17K10664
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Digestive surgery
Research InstitutionShinshu University

Principal Investigator

Shimizu Akira  信州大学, 学術研究院医学系(医学部附属病院), 講師 (00447773)

Co-Investigator(Kenkyū-buntansha) 本山 博章  信州大学, 学術研究院医学系(医学部附属病院), 助教 (20569587)
宮川 眞一  信州大学, 医学部, 特任教授 (80229806)
小林 聡  信州大学, 学術研究院医学系, 准教授 (90334903)
Project Period (FY) 2017-04-01 – 2020-03-31
KeywordsALPPS / NOS / NO誘導 / 肝再生
Outline of Final Research Achievements

Although Associating Liver Partition and Portal vein ligation for Staged hepatectomy (ALPPS) has been reported to achieve future liver remnant liver (FLR) hypertrophy in a short period, the underlying mechanisms are unclear.
We established rat portal vein ligation (PVL) model, ALPPS (ALP) model, and hepatectomy model (in which ischemic liver area was resected after ALPPS), and assess the relationship between activation or inhibition of eNOS and liver regeneration in FLR.
Since inhibition of eNOS suppressed liver regeneration and activation of eNOS enhanced liver regeneration in FLR, eNOS activation might be pivotal for accelerated FLR regeneration after ALPPS.

Free Research Field

肝胆膵外科

Academic Significance and Societal Importance of the Research Achievements

ALPPS手術に関して,肝血流動態やeNOS活性化に着目した基礎研究報告はなく,本研究は極めて独創的であると考えられる.本研究の意義は,ALPPS手術でみられる迅速な肝再生促進因子を同定しその解析を行うことにより,(1) 現存する治療法よりも効率的な肝再生と代償性肥大を促す治療法の開発により,大量肝切除後の肝不全リスクを低減し,肝胆道癌手術の安全性・確実性の向上に貢献する点,(2) 肝移植以外に治療選択肢のない肝不全症例において,将来的に既存の肝細胞・肝組織の再生を促す移植代替療法,もしくは肝機能を維持し移植待機可能期間の延長をもたらす中継療法を開発するための端緒となりうる点,にある.

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Published: 2021-02-19  

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