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2018 Fiscal Year Final Research Report

The impact of steroid receptors in chemohormone resistant prostate cancer

Research Project

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Project/Area Number 16K10992
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Urology
Research InstitutionAkita University

Principal Investigator

Narita Shintaro  秋田大学, 医学部附属病院, 准教授 (40396552)

Co-Investigator(Kenkyū-buntansha) 井上 高光  秋田大学, 医学系研究科, 准教授 (60375243)
黄 明国  秋田大学, 医学系研究科, 助教 (60448503)
Project Period (FY) 2016-04-01 – 2019-03-31
Keywords前立腺癌 / ステロイド受容体 / 生化学的再発 / 化学療法
Outline of Final Research Achievements

We assessed the impact of tissue biomarkers in patient with prostate cancer who underwent surgery after different neoadjuvant setting using tissue microarray analyses. We found that a high nuclear androgen receptor and a high nuclear YAP1 in residual cancer cells had a poor biochemical recurrence-free survival. Furthermore, The nuclear YAP1 expression was markedly higher in docetaxel resistant prostate cancer cells than that in parental cells.

Free Research Field

泌尿器腫瘍

Academic Significance and Societal Importance of the Research Achievements

これまで報告されているアンドロゲン受容体発現と前立腺癌化学内分泌療法抵抗性の関係のみならず、近年腫瘍の治療抵抗性やステロイド受容体との関連が示唆されるHippo経路の中心的転写因子の発現が前立腺癌化学内分泌療法抵抗性に関連する可能性を見出した。本分子は術前化学内分泌療法後前立腺全摘を行った症例の組織バイオマーカーとなる可能性のみならず化学内分泌療法抵抗性機序解明の足がかりや新規治療の標的となる可能性がある。

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Published: 2020-03-30  

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