核孔通过增加POM121驱动的E2F1,MYC和AR核进口促进致命的前列腺癌
Veronica Rodriguez-Bravo1, Raffaella Pippa1, Won-Min Song2
1Cancer Biology Department, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA; Medical Oncology Department, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA; Pathology Department, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
Cell
|August 14, 2018
概括
核孔复合体 (NPC) 调节细胞运输,但它们的癌症作用尚不清楚. 针对前列腺癌 (PC) 中的关键NPC蛋白质POM121, 抑制瘤生长并改善存活率.
科学领域:
- 分子生物学
- 癌症研究
- 细胞生物学
背景情况:
- 核孔复合体 (NPC) 对于调节细胞核和细胞质之间的分子运输至关重要.
- 在癌症,特别是前列腺癌 (PC) 的进展中,NPC及其成分核波林 (Nups) 的具体作用尚不清楚.
- 了解NPC在癌症中的功能对于开发新疗法至关重要.
研究的目的:
- 研究核波林 (Nups) 在人类前列腺癌 (PC) 进展中的作用.
- 识别有助于PC攻击性的特定Nups,并探索它们的潜在机制.
- 评估针对致命PC的NPC中介核进口的治疗潜力.
主要方法:
- 在原发性至转移性人类前列腺癌中对Nups的进化转录组分析.
- 在积极的PC模型中对上调的Nups进行功能丧失的基因查.
- 研究POM121抑制对瘤和PC特异性转录因子核进口的影响.
- 在患者模型中进行NPC监管核进口抑制的临床前测试.
主要成果:
- 确定POM121是激进性PC上调的关键核波林,对PC的攻击性有显著的贡献.
- POM121增强了依赖进口的致癌因子 (E2F1,MYC) 和PC特异性因子 (AR-GATA2) 的核传输.
- 在临床前的PC模型中,抑制POM121介导的核导入轴降低了瘤生长,恢复了标准治疗的疗效,并改善了生存率.
结论:
- 在前列腺癌的进展中,NPC发挥着重要作用.
- 它是核进口的关键媒介,
- 针对NPC监管的核进口为致命的前列腺癌和潜在的其他癌症提供了有前途的治疗策略.
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