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2023 Fiscal Year Final Research Report

The translational research of somatic mutations related to immune responsiveness in radiation therapy

Research Project

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Project/Area Number 20K08072
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 52040:Radiological sciences-related
Research InstitutionNational Institutes for Quantum Science and Technology

Principal Investigator

Murata Kazutoshi  国立研究開発法人量子科学技術研究開発機構, QST病院 治療診断部, 医長 (60644557)

Co-Investigator(Kenkyū-buntansha) 尾池 貴洋  群馬大学, 医学部附属病院, 講師 (10643471)
吉本 由哉  福島県立医科大学, 医学部, 准教授 (80594390)
Project Period (FY) 2020-04-01 – 2024-03-31
Keywords子宮頸癌 / 放射線治療 / 体細胞変異 / 抗腫瘍免疫
Outline of Final Research Achievements

Tumor mutation profiles associated with clinical outcome were analysed in 98 patients with radical radiotherapy cervical cancer. Recurrent mutations were observed in PIK3CA (35.7%), ARID1A (25.5%), NOTCH1 (19.4%), FGFR3 (16.3%), FBXW7 (19.4%), TP53 (13.3%), EP300 (12.2%) and FGFR4 (10.2%) FGFR family genes The prevalence of mutations in the FGFR family genes was similar to the prevalence of PIK3CA and ARID1A in cervical cancer; 5-year progression-free survival in patients positive for FGFR mutations was significantly worse than in patients negative for FGFR mutations (43.9% vs 68.5%; P = 0.010).

Free Research Field

放射線腫瘍学

Academic Significance and Societal Importance of the Research Achievements

FGFR遺伝子変異は、根治的放射線治療を受けた子宮頸がん患者の無増悪生存割合の悪化と関連していた。FGFR遺伝子ファミリーの変異を持つ患者グループは慎重な経過観察が必要である。FGFRを標的とした治療と放射線治療を組み合わせた今後の研究が正当化される。また、単施設の遡及的解析による結果のため、結果の検証のためには前向き研究におけるさらなる検証が必要である。

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Published: 2025-01-30  

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