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2023 Fiscal Year Final Research Report

MicroRNA signature predicts response to chemotherapy in pancreatic ductal adenocarcinoma

Research Project

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Project/Area Number 22K16045
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 53010:Gastroenterology-related
Research InstitutionThe University of Tokushima

Principal Investigator

OKADA Yasuyuki  徳島大学, 病院, 助教 (60815447)

Project Period (FY) 2022-04-01 – 2024-03-31
Keywords膵癌 / miRNA / バイオマーカー / 化学療法
Outline of Final Research Achievements

The expression profiles of 2,042 miRNAs were determined using micro-cancer tissues from 13 patients with unresectable PDAC obtained by EUS-FNA. Of 2,042 miRNAs, the miR-296-5p that exhibited the lowest correlation coefficient (R=-0.749, P=0.003) between miRNA expression level and prognosis among the patients were identified. Moreover, miR-296-5p in the serum specimens expression robustly identified patients with PDAC and unresectable disease and those who responded to gemcitabine-based therapy (AUC=0.78).

Free Research Field

消化器内科学

Academic Significance and Societal Importance of the Research Achievements

RNA-Seqから得た膨大かつビッグデータから膵癌に対する化学療法の治療効果を予測するmiRNAを同定することができた。これまでに膵癌の化学療法に対する有効な治療効果を予測するバイオマーカーの報告はなく重要な知見をもたらした。さらにmiRNAは癌の進展にかかわる遺伝子を制御する重要な役割を果たす機能を持っているとされ、この多数の遺伝子を同時に制御する特性を利用し、マルチターゲットを治療標的とした全く新たな創薬開発への応用が期待出来るため、きわめて予後の悪い膵癌の予後改善が期待でき、その臨床的意義は極めて大きいと考えられる。

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Published: 2025-01-30  

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