由MZF1调节的PRAME-AS lncRNA调节了PRAME表达和细胞干细胞的表达
Zahra Hosseininia1,2, Hesam Dehghani1,2,3
1Division of Biotechnology, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran.
PloS one
|September 17, 2025
概括
长非编码RNA的PRAME-AS调节了PRAME基因表达. 它的淘汰会降低PRAME水平,并影响癌细胞生长,迁移和活力,MZF1和DNA甲基化会影响这两种基因.
科学领域:
- 分子生物学分子生物学
- 癌症研究 癌症研究
- 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:
- PRAME是一种瘤丸抗原 (CTA),主要表达在丸中,但也表达在一些正常组织中,如子宫内膜.
- 对于PRAME的调节机制,特别是长非编码RNAs (lncRNAs) 的作用,尚不清楚.
- 了解PRAME调节是非常重要的,因为它的瘤受限表达.
研究的目的:
- 研究PRAME-AS lncRNA在调节PRAME表达中的作用.
- 为了确定PRAME-AS剥离对癌细胞特征的影响.
- 探索MZF1和DNA甲基化对PRAME和PRAME-AS表达的影响.
主要方法:
- PRAME-AS基因淘汰和PRAME表达和细胞功能的评估.
- 通过MZF1过度表达和上游区域高甲基化来操纵PRAME-AS表达.
- EGFP报告员测试评估监管区域推动PRAME-AS转录的能力.
主要成果:
- PRAME-AS淘汰赛使PRAME转录水平降低了~37%,并降低了细胞迁移,增殖,干细胞和活力.
- 过度表达MZF1增加了PRAME表达率~2倍和PRAME-AS水平>3倍.
- 在PRAME-AS上游区域的高甲基化使PRAME转录减少了50%左右,PRAME-AS水平降低了18.5%.
结论:
- PRAME-AS lncRNA作为PRAME转录水平的关键调节者.
- 一个共享的CpG岛的MZF1和DNA甲基化状态影响了PRAME和PRAME-AS的表达.
- 仅仅PRAME位置调节区域是不足以驱动反意义方向的PRAME-AS转录.
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