在ONECUT2转录因子及其3'未翻译区域之间进行自主行动和合作
Kenneth Steadman1, Sungyong You1, Dustin V Srinivas1
1Division of Cancer Biology and Therapeutics, Biomedical Sciences and Pathology and Laboratory Medicine, Department of Urology, Cedars-Sinai Medical Center, Samuel Oschin Comprehensive Cancer Institute, Los Angeles, CA, United States.
Frontiers in cell and developmental biology
|July 24, 2023
概括
在前列腺癌中,ONECUT2 (OC2) 作为转录因子和竞争性内源RNA (ceRNA) 起作用. 它的3' UTR促进转移,并保护OC2调节的基因免受微RNA抑制,增强瘤生长.
科学领域:
- 分子生物学分子生物学
- 癌症研究 癌症研究
- 遗传学 是一个遗传学.
背景情况:
- ONECUT2 (OC2) 是转移性割抵抗性前列腺癌的关键调节剂,影响雄激素受体活性,神经分化和瘤细胞存活.
- OC2 mRNA具有异常长的3'未翻译区域 (UTR),具有众多的microRNA结合点,包括miR-9的许多结合点,该结合点准与OC2蛋白相似的基因.
- 高OC2和miR-9表达的悖论表明,除了简单的准之外,还有一种调节机制.
研究的目的:
- 研究OC2 3' UTR在致死性前列腺癌中的新型作用.
- 探索OC2 3' UTR作为竞争性内源RNA (ceRNA) 的功能.
- 阐明OC2蛋白及其3' UTR在调节基因表达和促进癌症进展方面的合作关系.
主要方法:
- 在OC2驱动瘤中使用OC2 3' UTR进行ceRNA网络的计算构造.
- 在前列腺癌细胞系中对ceRNA网络的实验验证.
- 在体外测试以评估OC2 3' UTR表达所赋予的转移潜力.
主要成果:
- 确定并确认了OC2 3' UTR的功能性ceRNA网络.
- 由OC2 3' UTR调节的基因与由OC2蛋白调节的基因有显著的重叠,表明它们具有合作功能.
- 仅OC2 3' UTR表达就显著增加了转移潜力和改变了雄激素合成途径基因 (阿尔多-基托减少酶,UDP-葡萄转移酶).
结论:
- OC2 3' UTR 作为主 ceRNA 起作用,隔离 miRNA 并保护 OC2 调节的 mRNA 免受抑制.
- OC2蛋白及其3' UTR表现出合作活性,加强OC2驱动的转录网络,促进抵抗割的前列腺癌.
- ONECUT2是一种独特的双模态转录,在前列腺癌进展中充当关键转录因子和主ceRNA.
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