长非编码RNAEPCART通过PI3K/AKT/mTOR通路和前列腺癌中的PDCD4调节翻译
Annika Kohvakka1, Mina Sattari1, Janika Nättinen2
1Prostate Cancer Research Center, Faculty of Medicine and Health Technology, Tampere University and Tays Cancer Center, Tampere University Hospital, 33520, Tampere, Finland.
Cancer gene therapy
|August 15, 2024
概括
这项研究表明,EPCART是一种长非编码RNA (lncRNA),通过影响PI3K/AKT/mTORC1通路来调节前列腺癌 (PCa) 中的蛋白质翻译. 减少EPCART会增加PDCD4,影响PCa的进展.
科学领域:
- 分子生物学分子生物学
- 在瘤学瘤学.
- 遗传学 遗传学 是一个
背景情况:
- 长非编码RNAs (lncRNAs) 越来越多地被认可为它们在癌症中的作用,其中许多在细胞质中起作用以调节翻译.
- 许多与癌症相关的lncRNAs的特定功能在很大程度上仍未被描述.
- 前列腺癌 (PCa) 是一个重大的临床挑战,需要对其分子基础有更深入的了解.
研究的目的:
- 阐明EPCART的分子特征和功能作用,这是以前在前列腺癌中发现的潜在瘤基因.
- 研究EPCART如何影响前列腺癌细胞内的转化机制.
- 探索EPCART及其相关途径的治疗和预后潜力.
主要方法:
- 在分析中确定转录结构,并确认EPCART是非编码 lncRNA.
- 在EPCART淘汰赛细胞中差异表达基因的途径分析.
- 定量蛋白质组分析以确定EPCART调制后的蛋白质变化.
- 在EPCART操纵后调查信号通路,包括PI3K/AKT/mTORC1.
主要成果:
- 证实EPCART是一种非编码的lncRNA,主要局部在细胞质中的翻译部位.
- EPCART淘汰细胞表现出改变的翻译机制,增加了翻译抑制剂PDCD4的水平.
- EPCART沉默导致AKT激活和mTORC1通路抑制的减少,影响了整体蛋白质翻译.
- 确定PDCD4是EPCART转化控制中的一个关键调解器.
结论:
- 在前列腺癌细胞中,EPCART 作为翻译关联的 lncRNA 起作用.
- 通过PI3K/AKT/mTORC1信号通路调节蛋白质翻译.
- EPCART和PDCD4有可能成为前列腺癌的预后生物标志物.
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