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2020 Fiscal Year Final Research Report

Personalized medicine by monitoring ctDNA for pancreatic cancer

Research Project

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Project/Area Number 18K08629
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 55020:Digestive surgery-related
Research InstitutionWakayama Medical University

Principal Investigator

Hirono Seiko  和歌山県立医科大学, 医学部, 講師 (60468288)

Co-Investigator(Kenkyū-buntansha) 川井 学  和歌山県立医科大学, 医学部, 准教授 (40398459)
岡田 健一  和歌山県立医科大学, 医学部, 講師 (50407988)
宮澤 基樹  和歌山県立医科大学, 医学部, 講師 (90549734)
北畑 裕司  和歌山県立医科大学, 医学部, 学内助教 (00535338)
山上 裕機  和歌山県立医科大学, 医学部, 教授 (20191190)
Project Period (FY) 2018-04-01 – 2021-03-31
Keywords膵癌
Outline of Final Research Achievements

We monitored circulating cell-free tumor DNA (ctDNA) in the patients with pancreatic cancer during treatment using Cancer Personalized Profiling by deep Sequencing (CAPP-Seq). Copy number of Kras mutation from 78.6 copy to 0 copy in a patient with unresectable pancreatic cancer decreased on 3 months after start of chemotherapy, however, increased from 0 copy to 94.4 copy at progression disease on imaging findings. Based on our data, monitoring ctDNA by CAPP-Seq might reflect the effectiveness of the treatments for pancreatic cancer.

Free Research Field

肝胆膵外科

Academic Significance and Societal Importance of the Research Achievements

本研究により、膵癌患者において、治療前あるいは治療中にcell-free tumor DNA変異解析をモニタリングすることで、gemcibtabine・nab-paclitaxelあるいはFOLFIRINOXによる化学療法の効果予測を行うことができれば、各患者に最適な化学療法を用いた個別化治療を開発でき、また化学療法耐性時には治療方針の変更をすることができ、膵癌患者の生存期間延長に貢献できることが期待される。

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Published: 2022-01-27  

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