• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

2023 Fiscal Year Final Research Report

Age dependent MLL-fusion leukemia development

Research Project

  • PDF
Project/Area Number 21K08421
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 InstitutionOkayama University (2023)
Kumamoto University (2021-2022)

Principal Investigator

Kubota Sho  岡山大学, 医歯薬学域, 助教 (70747831)

Project Period (FY) 2021-04-01 – 2024-03-31
Keywords白血病 / エピゲノム / MLL / 小児 / 年齢依存 / 造血幹細胞 / がん
Outline of Final Research Achievements

We examined the effects of age-dependent differences in HSC properties on the development of leukemia and analyzed a developmental time-dependent model of leukemogenesis. It is also known that continuous transplantation of bone marrow from mice can add inflammatory stress to HSCs, which also occurs in aging mice, and change the properties of HSCs. We examined the effects of these changes in the intracellular environment of HSCs on the development of leukemia and analyzed HSC stress-dependent leukemogenesis. Then, based on the validation results obtained from the two models, we analyzed the HSC properties that regulate leukemogenesis.

Free Research Field

エピゲノム

Academic Significance and Societal Importance of the Research Achievements

MLL融合がん遺伝子による白血病は年齢との関係性が非常に高いことがよく知られている。成人期における白血病の5%程度でMLL融合がん遺伝子が検出されるが、新生児期においては白血病の50-80%の頻度でMLL融合がん遺伝子が検出される。t(9;11)によって生じるMLL融合がん遺伝子の一つであるMLL-AF9は、AMLを引き起こす主要なMLL融合がん遺伝子である。MLL融合がん遺伝子を原因とした白血病は、成人に比べ胎児・新生児の生後一年未満の患者で非常に高い頻度で見られることの明確な理由は数十年いまだ不明なままである。本研究成果は、MLL融合由来白血病発症機構を理解することで治療の基礎基盤となる。

URL: 

Published: 2025-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi