SCI REP:多巴胺D1受体激动剂可以抑制乳腺肿瘤及骨转移进展

2017-04-05 MedSci MedSci原创

在中枢神经系统中,多巴胺能信号通路扮演者重要的角色。多巴胺能信号通路参与调节认知、记忆、学习等多项功能。其功能异常与帕金森病、精神分裂症等发病息息相关。已知的多巴胺受体有D1-D5,可以分为D1类受体以及D2类受体。激动D1类受体可以诱导腺苷酸环化酶,增加细胞内cAMP水平。乳腺癌死亡首要原因并不是原发肿瘤,而是后续的肿瘤转移。其中骨转移是常见的转移方式。目前对于多巴胺能信号通路在乳腺癌及骨转移中

在中枢神经系统中,多巴胺能信号通路扮演者重要的角色。多巴胺能信号通路参与调节认知、记忆、学习等多项功能。其功能异常与帕金森病、精神分裂症等发病息息相关。已知的多巴胺受体有D1-D5,可以分为D1类受体以及D2类受体。激动D1类受体可以诱导腺苷酸环化酶,增加细胞内cAMP水平。乳腺癌死亡首要原因并不是原发肿瘤,而是后续的肿瘤转移。其中骨转移是常见的转移方式。目前对于多巴胺能信号通路在乳腺癌及骨转移中的作用研究较少。

SCI REP近期报道了一篇文章研究了乳腺肿瘤及骨转移中多巴胺能信号通路发挥的作用。研究结果表明,使用多巴胺D1受体选择性激动剂A77636抑制了乳腺癌细胞4T1.2以及MDA-MB-231的增殖。作者进一步在骨转移模型中研究了A77636对骨的作用。A77636可以促进eIF2α磷酸化下调NFATc1,抑制骨吸收破骨细胞的发展,进而抑制肿瘤细胞迁移。在骨转移鼠模型中,A77636减少了溶骨性病变,避免股骨和胫骨出现软化。

文章最后认为,多巴胺能信号通路可以为乳腺癌及骨转移的治疗提供新的治疗靶点。


原始出处:
Kazumase Minami,Shengzhi Liu,et al.Inhibitory Effects of Dopamine Receptor D1 Agonist on Mammary Tumor and Bone Metastasis.SCI REP.04 April 2017 doi:10.1038/srep45686

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    2017-04-07 tofsw

    学习了谢谢分享

    0

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    2017-04-06 为你把脉

    宣传册才吃饭滚滚滚

    0

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    2017-04-05 为你把脉

    脱光光观后感

    0

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