IGF2BP3通过以m6A依赖的方式调节Semaphorin 4D稳定性来促进急性髓性白血病细胞的进展
Juan Li1, Shulan Shi2, Kefu Zhu3
1Institute of Medicine, Dali University, Dali, Yunnan 671003, PR China; Institute of Pediatrics, The Kunming Children's Hospital, Children's Hospital affiliated to Kunming Medical University, Kunming, Yunnan 650228, PR China.
Leukemia research
|November 4, 2025
概括
胰岛素生长因子2 mRNA结合蛋白3 (IGF2BP3) 通过稳定Sema4D mRNA.semaphorin 4D (Sema4D) 来促进儿科急性髓性白血病 (AML). 针对IGF2BP3/Sema4D轴可能提供新的AML治疗策略.
科学领域:
- 分子生物学分子生物学
- 在瘤学瘤学.
- 生物化学 生物化学
背景情况:
- 赛马福林4D (Sema4D) 是一个潜在的儿科白血病生物标志物,但其上游调节是未知的.
- 在急性髓性白血病 (AML) 中,胰岛素增长因子2与mRNA结合蛋白3 (IGF2BP3) 的作用需要进一步研究.
研究的目的:
- 探索IGF2BP3和Sema4D在儿科AML中的调节关系.
- 研究IGF2BP3影响Sema4D表达和AML进展的机制.
主要方法:
- 分析了小儿AML患者和健康捐赠者的Sema4D和IGF2BP3表达,使用西部涂抹和qRT-PCR.
- 利用IGF2BP3过度表达和淘汰的细胞模型来评估增殖,细胞亡和细胞循环.
- 评估了Sema4D mRNA稳定性和m6A甲基化水平.
主要成果:
- 在小儿AML患者样本中,Sema4D和IGF2BP3的过度表达和正相关.
- 过度表达IGF2BP3增加了AML细胞增殖和细胞周期进展,同时抑制了细胞亡.
- IGF2BP3通过一个依赖m6A的机制稳定Sema4DmRNA的表达.
结论:
- IGF2BP3/Sema4D轴是AML发展的关键调节者,促进了扩散和生存.
- 在转录后,IGF2BP3以m6A依赖的方式调节Sema4D,影响AML.
- 针对IGF2BP3/Sema4D轴为AML治疗提供了一个潜在的治疗策略.
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