Mol Cancer Ther:Notch1活性缺失能够抑制前列腺癌的生长和转移

2019-05-13 AlexYang MedSci原创

前列腺癌在男性相关死亡原因中仍旧占据主导地位。患有恶性疾病的患者基本都要经历激素阻断治疗。虽然起始的治疗非常有效,这些男性通常在未来2-3年会发展至致死的、去势抵抗性前列腺癌。去势抵抗性前列腺癌的标准治疗方法包括第二代抗雄激素治疗,但是只能延长患者寿命几个月。因此,加深对抵抗性产生机理的理解是必要的,最终目的就是要开发出恶性前列腺癌的新疗法。最近,有研究人员鉴定了Notch1作为前列腺癌的治疗靶标

前列腺癌在男性相关死亡原因中仍旧占据主导地位。患有恶性疾病的患者基本都要经历激素阻断治疗。虽然起始的治疗非常有效,这些男性通常在未来2-3年会发展至致死的、去势抵抗性前列腺癌。去势抵抗性前列腺癌的标准治疗方法包括第二代抗雄激素治疗,但是只能延长患者寿命几个月。因此,加深对抵抗性产生机理的理解是必要的,最终目的就是要开发出恶性前列腺癌的新疗法。

最近,有研究人员鉴定了Notch1作为前列腺癌的治疗靶标。研究发现,Notch1缺失能够减少增殖、入侵和肿瘤表面形成。在前列腺癌细胞中,γ分泌酶抑制剂RO4929097或者DAPT对Notch1活性的抑制也能够导致增殖能力的减弱。另外,小鼠中Notch1活性的抑制能够明显的抑制肿瘤生长。Notch1功能丧失在体外和体内试验中还能够减少前列腺癌细胞的转移。更多的是,γ分泌酶抑制剂或者Notch1基因的缺失能够与抗雄激素疗法协同来减少前列腺癌细胞的生长。γ分泌酶抑制剂与阿比特龙组合使用能够显著的抑制细胞迁移和侵入,而与恩杂鲁胺组合使用时却诱导迁移和侵入。

最后,研究人员指出,他们的发现表明了Ntoch1功能丧失能够延迟CRPC的生长和抑制转移,Notch1活性的抑制与二代抗雄激素治疗药物的组合能够延迟前列腺癌的生长和恶化。

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    2019-07-31 drwjr
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    2019-05-15 ymljack
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    2019-05-13 misszhang

    前列腺癌相关研究,学习了,谢谢梅斯

    0

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