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USP11通过上调AR和c-Myc活动来促进前列腺癌的进展
Majid Pornour1,2, Hee-Young Jeon1,2, Hyunju Ryu1,2
1Department of Biochemistry and Molecular Biology, University of Maryland, Baltimore, MD 21201.
概括
杜比基因酶USP11通过稳定雄激素受体 (AR) 和c-Myc.促进侵袭性前列腺癌 (PCa). 抑制USP11可以减少瘤生长,这表明它是晚期PCa的治疗点.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 生物化学 生物化学
背景情况:
- 雄激素受体 (AR) 驱动割抵抗性前列腺癌 (CRPC).
- 瘤基因c-Myc与前列腺瘤发生有关.
- 在癌症的进展中,USP11二维基丁酶活性越来越被认可.
研究的目的:
- 研究USP11在前列腺癌 (PCa) 进展中的作用.
- 确定USP11是否针对PCa中的AR和c-Myc.
- 探索USP11作为攻击性PCa.的潜在治疗点.
主要方法:
- 在转移PCa和CRPC组织中的USP11表达分析.
- 在PCa细胞中USP11敲除 (KD),随后进行细胞生长试验.
- RNA测序和ChIP测序用于分析转录变化和蛋白质结合.
- 评估USP11 KD对AR和c-Myc蛋白稳定性和基因转录的影响.
主要成果:
- 在转移性PCa和CRPC中,USP11表达升高.
- 通过USP11 knockdown,可显著抑制PCa细胞的增殖.
- USP11 KD改变AR和c-Myc的表达,并减少它们与染色质的结合.
- USP11稳定了AR和c-Myc蛋白质,并通过H2A-K119Ub双化促进了它们的基因转录.
结论:
- USP11通过调节AR和c-Myc稳定性和转录来促进积极的PCa.
- USP11在晚期前列腺癌中起着促进瘤的作用.
- USP11是治疗PCa.的潜在治疗点.
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