MAT2A 抑制了 miR-26b-5p 调节的骨髓瘤进展中的铁化
Shuchi Xia1, Yun Liang2, Yuqing Shen1
1Department of Dentistry, Zhongshan Hospital Fudan University, Shanghai 200032, China.
Journal of bone oncology
|July 17, 2023
概括
抑制甲氨基基转移酶IIα (MAT2A) 通过影响STAT3/SLC7A11通路,引发骨肉瘤 (OS) 细胞中的铁亡. 这揭示了一个由MAT2A介导的防御机制,并建议OS的新铁灭诱导治疗策略.
科学领域:
- 在瘤学瘤学.
- 细胞死亡研究 细胞死亡研究
- 分子生物学分子生物学
背景情况:
- 骨髓瘤 (OS) 是最常见的原发性恶性骨瘤.
- 铁亡,一个调节的细胞死亡,对于瘤抑制至关重要.
- 甲氨基基转移酶IIα (MAT2A) 在OS铁亡中的作用尚不清楚.
研究的目的:
- 为了研究MAT2A在骨髓瘤 (OS) 细胞ferroptosis中的作用.
- 探索MAT2A在OS进展中的调控机制.
- 评估MAT2A作为OS的潜在治疗标.
主要方法:
- 细胞活力,细胞亡,细胞循环和迁移试验 (CCK-8,流细胞计,Transwell).
- 测量细胞内铁和谷氨 (GSH) 的水平.
- 对MAT2A,p-STAT3/STAT3和SLC7A11蛋白质表达的西部斑点分析.
- 在体内瘤进展研究和shRNA介导的MAT2A敲击.
主要成果:
- 在OS标本中,MAT2A被上调,并与预后不佳有关.
- MAT2A倒置增加了OS细胞的亡,诱导了G2细胞周期的停止,并减少了迁移.
- 在体内,MAT2A的枯竭抑制了OS瘤的生长,并促进了铁亡.
- 该miR-26b-5p/MAT2A轴通过STAT3/SLC7A11途径调节OS进展和铁亡.
结论:
- MAT2A促进OS的进展,并抑制铁亡.
- 通过增加铁素和抑制STAT3/SLC7A11轴,MAT2A倒置诱导OS细胞铁.
- 向MAT2A代表了骨髓瘤潜在的诱导铁亡的治疗策略.
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