Nat Commun:前列腺癌中雄激素阻断能够上调SPINK1的表达和增强细胞可塑性

2020-01-31 AlexYang MedSci原创

雄激素阻断治疗(ADT)后不依赖于雄激素受体(AR)的恶性神经内分泌前列腺癌(PCa)的出现已经了解的很清晰。尽管如此,大多数的晚期阶段的前列腺癌患者,包括那些SPINK1阳性亚型,仍旧是使用AR拮抗剂治疗。最近,有研究人员展示了AR和它的共抑制因子REST,能够作为SPINK1的转录抑制因子,并且AR拮抗剂能够减轻上述抑制,从而导致SPINK1上调。在NE分化转化期间,SOX2表达的增加能够反式

雄激素阻断治疗(ADT)后不依赖于雄激素受体(AR)的恶性神经内分泌前列腺癌(PCa)的出现已经了解的很清晰。尽管如此,大多数的晚期阶段的前列腺癌患者,包括那些SPINK1阳性亚型,仍旧是使用AR拮抗剂治疗。

最近,有研究人员展示了AR和它的共抑制因子REST,能够作为SPINK1的转录抑制因子,并且AR拮抗剂能够减轻上述抑制,从而导致SPINK1上调。在NE分化转化期间,SOX2表达的增加能够反式激活SPINK1,SOX2是NE表型维持的一个关键因子。SPINK1能够引起上皮-间质转化、干细胞化和细胞可塑性化。与之相反,药理酪蛋白激酶-1抑制剂能够稳定化REST,并与AR协同引起SPINK1转录因子和阻碍SPINK1介导的致瘤过程。另外,研究人员在AR拮抗剂治疗的小鼠和一部分NEPC患者中观察到了SPINK1和NEPC标记水平的提高,表明了SPINK1在NEPC治疗中的合理作用。

最后,研究人员指出,他们的发现为ADT后矛盾的临床结果提供了解释,且很可能是由于SPINK1上调引起,并为辅助治疗提供了策略。

原始出处:

Ritika Tiwari, Nishat Manzar, Vipul Bhatia et al. Androgen deprivation upregulates SPINK1 expression and potentiates cellular plasticity in prostate cancer. Nat Commun. 20 Jan 2019

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    2020-10-15 minzju5052
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    2020-05-23 liye789132251
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    2020-01-31 misszhang

    前列腺癌相关研究,学习了,谢谢梅斯

    0

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