Sci Rep:恩杂鲁胺可以抑制睾丸素诱导的人类前列腺癌异种种植体的生长

2017-11-05 AlexYang MedSci原创

斑马鱼已经成为一种非常流行的人类肿瘤异种种植模型,尤其是对包括前列腺癌(PCa)在内的实体瘤。到目前为止,在斑马鱼中睾丸素存在情况下的异种种植体研究还没有进行过,甚至在雄激素依赖的细胞模型中,如LNCaP细胞系中,也没有进行过类似的研究。最近,有研究人员为了探究PCa在人类激素环境中发展的建模,他们研究并确定了外源睾丸素对LNCaP生长的影响,或者在斑马鱼胚胎中雄激素依赖的C4-2细胞异种种植情况

斑马鱼已经成为一种非常流行的人类肿瘤异种种植模型,尤其是对包括前列腺癌(PCa)在内的实体瘤。到目前为止,在斑马鱼中睾丸素存在情况下的异种种植体研究还没有进行过,甚至在雄激素依赖的细胞模型中,如LNCaP细胞系中,也没有进行过类似的研究。最近,有研究人员为了探究PCa在人类激素环境中发展的建模,他们研究并确定了外源睾丸素对LNCaP生长的影响,或者在斑马鱼胚胎中雄激素依赖的C4-2细胞异种种植情况。

研究发现,与对照异种种植体比较,睾丸素可以显著的增加移植LNCaP的增殖,但这种现象可以被抗雄激素受体药物-恩杂鲁胺的共同使用而抑制。与之相反,C4-2细胞生长并不受睾丸素或者恩杂鲁胺的影响。另外,在斑马鱼胚胎中,恩杂鲁胺以剂量依赖的方式同样可以引起心动过缓和死亡,并且与钾离子通道阻断药物特非那定具有协同加强作用。特非那定是一种可以要到长期QT综合症和心律失常的药物。最后,研究人员指出,这些数据不仅表明了在斑马鱼PCa异种种植研究中,不仅要考虑睾丸素注射的影响,而且要重视临床前平台的特殊机会来同时评估新疗法或者保护性药物的治疗效果和毒性,从而开发出更加安全和有效的PCa治疗方法。

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    2018-08-27 huangdf
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    2017-11-07 zhangph
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    2017-11-05 zwjnj2

    好好好好好学习学习学习

    0

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NICE在最终指南中证实,对于癌症已扩散至身体其它部位,并且已使用细胞毒药物吉西他滨,进行性激素复发性前列腺癌治疗的患者,将可以通过NHS获取恩杂鲁胺(Enzalutamide)进行治疗。恩杂鲁胺也被称作Xtandi,由安斯泰来制药生产。 在之前的草案建议中,NICE并未推荐恩杂鲁胺用于已应用阿比特龙(Abiraterone)治疗过的患者人群。在对之前草案建议进行协商之后,NICE把此项内容从指