综合素β4诱导的上皮细胞转化为介质细胞的转变涉及miR-383介导的GATA6水平调节
Aswini Poyyakkara1, Grace R Raji1, K P Padmaja1,2
1Department of Biochemistry and Molecular Biology, Central University of Kerala, Tejaswini Hills, Periye, Kasaragod, Kerala, 671316, India.
Molecular biology reports
|September 1, 2023
概括
集成蛋白β4 (ITGB4) 信号传导通过AKT激活诱导上皮层-介质酶过渡 (EMT),导致miR-383准GATA6. 这一途径促进细胞迁移和入侵,突出了EMT相关疾病的新型治疗点.
科学领域:
- 细胞生物学 细胞生物学
- 分子生物学分子生物学
- 癌症研究 癌症研究
背景情况:
- 表皮-介质细胞过渡 (EMT) 是细胞获得侵入性质的过程.
- 集成蛋白β4 (ITGB4) 是一种涉及EMT的细胞粘附分子.
- 微RNAs (miRNAs) 在ITGB4介导的EMT中的作用尚不清楚.
研究的目的:
- 调查miRNAs在ITGB4诱导的EMT中的作用.
- 阐明ITGB4介导的EMT中涉及的下游信号通路.
主要方法:
- 在HeLa细胞中ITGB4细胞质域 (ITGB4CD) 的异胎表达.
- 对介质细胞标记物,β-catenin和AKT信号的分析.
- 在和qRT-PCR分析中识别关键miRNA,包括miR-383.
- 西部涂抹和qRT-PCR验证了GATA6.6的miR-383调节.
- 细胞迁移测定和卵子异种移植模型.
主要成果:
- ITGB4CD表达诱导了EMT,激活了AKT和β-catenin通路.
- 确定了miR-383,并证明可以在转录后调节GATA结合蛋白6 (GATA6).
- 抑制GATA6逆转了ITGB4诱导的EMT和细胞迁移.
- 由ITGB4CD诱导的EMT和迁移在体外和体内被miR-383或GATA6抑制逆转.
结论:
- 在ITGB4信号传输中,通过AKT/miR-383/GATA6/β-catenin轴诱导EMT.
- 这条通路对于在EMT期间调节细胞迁移和入侵至关重要.
- 针对这一轴可能为表现出EMT的癌症提供治疗策略.
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