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2022 Fiscal Year Final Research Report

Identifying mechanisms for development of hematological malignancies among A-bomb survivors

Research Project

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Project/Area Number 19K16574
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 49020:Human pathology-related
Research InstitutionRadiation Effects Research Foundation

Principal Investigator

YOSHIDA Noriaki  公益財団法人放射線影響研究所, 広島臨床研究部, 副主任研究員 (20832926)

Project Period (FY) 2019-04-01 – 2023-03-31
Keywords白血病 / 造血器腫瘍 / 放射線被曝 / 病理標本 / 分子病理学
Outline of Final Research Achievements

It is widely accepted that radiation can induce leukemia development, but the molecular mechanisms still remain unknown. In the current study, I focused on the leukemia cases that developed before 1980, in which the increased risk of leukemia was identified among A-bomb survivors. I established the methods of pathological and molecular analysis using DNA and RNA extracted from the pathological samples that were stored before 1980. I'm going to investigate the genomic alterations using high throughput sequencing to characterize the leukemia cases.

Free Research Field

造血器腫瘍

Academic Significance and Societal Importance of the Research Achievements

これまで放射線被曝と白血病発症の関係は主に疫学的研究によって評価されてきた。今回の研究では、放射線被曝の影響が強くみられるサンプルを用いて分子病理学的解析が実施可能であることが明らかとなった。この方法を用いて白血病症例の分子病理学的特徴を詳細に評価することで、放射線被曝によりどのようにして白血病が発症するのかについて解明できる可能性がある。そしてその解明は、今後医療放射線被曝などにおいて白血病予防や早期診断・治療などへの応用につながりうる。

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Published: 2024-01-30  

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