Oncogene:MYC下调MEIS1介导前列腺癌的发展

2020-07-29 AlexYang MedSci原创

在大多数男性中,局部前列腺癌发展非常缓慢。雄激素受体(AR)和MYC转录因子是前列腺癌致瘤中最为明确的驱使因子。腔内前列腺癌细胞中MYC的上调与AR的终端分化作用相反。然而,MYC上调的作用具有多效性

在大多数男性中,局部前列腺癌发展非常缓慢。雄激素受体(AR)和MYC转录因子是前列腺癌致瘤中最为明确的驱使因子。腔内前列腺癌细胞中MYC的上调与AR的终端分化作用相反。然而,MYC上调的作用具有多效性,并且与增殖不良表型不一致。

最近,有研究人员展示了MYC表达和活性的增加与MEIS1下调(一个HOX家族转录因子)相关。在MYC免疫组化的基础上,研究人员通过激光捕获显微解剖来获取样本,并通过RNA-seq对一系列前列腺癌样本进行了分析,并发现MYC活性与MEIS1的表达呈现负相关关系。前列腺癌细胞中MYC表达的抑制能够增加MEIS1的表达和增加MIES1位点MYC的量。最后,研究人员指出,在激光捕获显微解剖人类前列腺癌样本和前泪腺TCGA队列中,MEIS1的表达与AR活性和HOXB13(一个与AR和MEIS1互作的蛋白)呈现负相关关系。

最后,研究人员指出,他们的数据阐释了MYC在一些原发前列腺癌中表达提高,并且在调控MEIS1表达中起负作用,该下调可能有助于对MYC驱使的发展和恶化。

原始出处:

Nichelle C. Whitlock, Shana Y. Trostel, Scott Wilkinson et al. MEIS1 down-regulation by MYC mediates prostate cancer development through elevated HOXB13 expression and AR activity. Oncogene. 17 July 2020

 

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    2021-03-19 cy0324
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    2020-07-31 guihongzh
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    2020-07-31 zsyan
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    2020-07-30 ms3000000449926787

    学习!

    0

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    2020-07-29 misszhang

    前列腺癌相关研究,学习了,谢谢梅斯

    0

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