由N6-甲基氨酸诱导的miR-182-5p通过调节CAMK2N1促进多发性骨髓瘤瘤的发生
Jing Bao1, Tingting Xu1, Wanjie Wang1
1Department of Hematology, the First Affiliated Hospital of Anhui Medical University, 218 Jixi Road, Hefei, 230022, Anhui, China.
Molecular and cellular biochemistry
|January 5, 2024
概括
类似3甲基转移酶 (METTL3) 通过调节miR-182-5p和CAMK2N1.1.p促进多发性骨髓瘤 (MM) 的生长. 这种METTL3/miR-182-5p/CAMK2N1通路为MM提供了潜在的治疗点.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
背景情况:
- 多发性骨髓瘤 (MM) 瘤发生受甲基转移酶3 (METTL3) 的影响,但其精确的分子机制尚不清楚.
- N6-甲基氨酸 (m6A) 修饰与癌症有关,但它们在MM进展中的作用需要进一步阐明.
研究的目的:
- 调查METTL3在MM扩散中的作用及其潜在的分子机制.
- 根据METTL3介导的途径来确定MM的潜在治疗点.
主要方法:
- 定量实时PCR (RT-qPCR) 和西布洛特用于基因和蛋白质表达分析.
- 细胞计数套件-8和殖民地形成测定用于增殖评估.
- 同免疫沉 (Co-IP),光酶记者测定和异种移植小鼠模型,以验证分子相互作用和体内效应.
主要成果:
- 在MM患者的样本和细胞中,METTL3表达显著升高,与增加的增殖相关.
- METTL3促进了MM细胞的增殖,而它的淘汰抑制了它.
- METTL3依赖的m6A修饰影响了DiGeorge综合征关键区域8 (DGCR8) 中介的pri-miR-182成熟,上调 miR-182-5p.
- miR-182-5p是向和下调的CaMKII抑制剂1 (CAMK2N1) 的表达.
- 证实METTL3/miR-182-5p/CAMK2N1轴在体内促进MM瘤生长.
结论:
- METTL3/miR-182-5p/CAMK2N1信号轴是MM瘤发生的一个关键驱动因素.
- 针对这一轴,为多发性骨髓瘤提供了一个有前途的治疗策略.
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