由ACTG1驱动的P4HB基因剪接增强了EMT和膀癌的进展
Zhenghua Liu1, Peng Xin2, Weiwei Wu2
1Department of Thoracic Surgery, The First Hospital of China Medical University, 110001, Shenyang, Liaoning, P.R. China.
NPJ precision oncology
|October 24, 2025
概括
动蛋白玛1 (ACTG1) 通过改变P4HB基因拼接形成circ_0046263,促进细胞生长和转移,推动膀癌 (BLCA) 的进展. 针对ACTG1为BLCA提供了一个潜在的治疗策略.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 癌症遗传学 癌症遗传学
背景情况:
- 膀癌 (BLCA) 由于高发病率和不良预后,存在重大临床挑战.
- 基因剪接的失调有助于癌症的进展,但其在BLCA中的特定作用需要进一步阐明.
研究的目的:
- 研究阿克丁玛1 (ACTG1) 在调节P4HB基因剪接中的作用及其对表皮-介质细胞转换 (EMT) 和BLCA进展的影响.
- 确定ACTG1作为膀癌的潜在治疗点.
主要方法:
- 利用了来自癌症基因组图谱 (TCGA) 的转录组和临床数据以及来自TCGA SpliceSeq.的拼接数据.
- 执行了LASSO回归,Cox分析和GEO数据集的元分析,以验证微分表达式.
- 进行了体外和体内功能测试,以评估ACTG1和circ_0046263对BLCA细胞的影响.
主要成果:
- 确定ACTG1在BLCA中显著上调,与免疫细胞透和检查点相关.
- 证明ACTG1促进P4HB拼接形成circ_0046263,增强BLCA细胞的增殖,迁移和入侵.
- 表明ACTG1沉默抑制了瘤生长和体内转移,通过circ_0046263的过度表达,效果逆转.
结论:
- 在BLCA中通过P4HB拼接和circ_0046263形成来调节EMT,ACTG1起着至关重要的作用.
- ACTG1和circ_0046263代表了膀癌干预的有希望的新型治疗点.
- 突出了接调节在癌症生物学中的重要性,并为BLCA诊断和治疗提供了洞察力.
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