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2023 Fiscal Year Final Research Report

Integrated analysis of the molecular basis of leukemia stem cells using a mouse model inducibly developing leukemia

Research Project

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Project/Area Number 21K08411
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 54010:Hematology and medical oncology-related
Research InstitutionMie University

Principal Investigator

Ono Ryoichi  三重大学, 医学系研究科, 准教授 (40422414)

Project Period (FY) 2021-04-01 – 2024-03-31
Keywords造血器腫瘍
Outline of Final Research Achievements

In this study, using a conditional MLL-ENL transgenic mouse model originally constructed by our group, we focused on the relationship between the undifferentiated nature of hematopoietic cells, which are the mother cells from which leukemia stem cells arise, and found that the more undifferentiated they are, the more likely they are to produce leukemia stem cells. Using a variety of molecular biological techniques, we also found that BAHCC1 plays an important role in the molecular mechanism of MLL-ENL leukemogenesis. Furthermore, we confirmed that BAHCC1 is equally important in human leukemia cells, and submitted the manuscript to Blood Advances for publication, which was accepted.

Free Research Field

血液腫瘍学

Academic Significance and Societal Importance of the Research Achievements

本研究で扱っている白血病は、血液系における「がん」と位置付けられる。近年、骨髄移植などの強力な治療法に加えて、時として非常に効果的な分子標的療法の開発により、治療成績において一定の改善が認められてきた。その一方で、こうした恩恵を受けられていないタイプの白血病もまだ少なからず存在しており、新たな治療法の開発が求められている。本研究では、我々などの先行研究により、難治性と相関する、未分化な造血細胞を発症母地とするタイプの白血病のマウスモデルを用いて、従来ほとんど知られていなかった、白血病発症における重要な役割を果たしている新たな分子機構の一端を解明し、今後、新たな治療標的の探索を目指していく。

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Published: 2025-01-30  

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