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Nat Genet:SREBP依赖的脂肪生成途径的异常可以促进转移性前列腺癌

2018-01-24 AlexYang MedSci原创

脂肪要么是内源合成,要么是体外摄取,并且脂肪与人类前列腺癌有关。最近,有研究人员发现在转移性人类前列腺癌中(CaP),PML经常与PTEN存在共缺失情况。研究人员在文章中阐释了Pml在小鼠前列腺中的有条件的失活能够将无痛Pten-null肿瘤改变为致死性转移疾病。研究人员还鉴定了MAPK再激活、异常的SREBP前转移脂肪生成途径和不同的脂质沉积情况均为转移性Pml-null和Pten-null C

脂肪要么是内源合成,要么是体外摄取,并且脂肪与人类前列腺癌有关。最近,有研究人员发现在转移性人类前列腺癌中(CaP),PML经常与PTEN存在共缺失情况。

研究人员在文章中阐释了Pml在小鼠前列腺中的有条件的失活能够将无痛Pten-null肿瘤改变为致死性转移疾病。研究人员还鉴定了MAPK再激活、异常的SREBP前转移脂肪生成途径和不同的脂质沉积情况均为转移性Pml-nullPten-null CaP的关键特征特性。更多的是,在体内试验中,利用fatostatin以SREBP为靶标,可以阻断肿瘤生长和远距离转移。重要的是,高脂肪饮食(HFD)能够诱导脂肪在前列腺肿瘤中的积累,并且在CaP非转移性Pten-null小鼠模型中能够促使转移,并且在转移性人类CaP中,SREBP特性高度聚集。

最后,研究人员指出,他们的发现揭示了一个前转移脂肪生成途径,并且为西方HFD能够促进转移提供了遗传和实验证据。

原始出处:

Ming Chen, Jiangwen Zhang, Katia Sampieri et al. An aberrant SREBP-dependent lipogenic program promotes metastatic prostate cancer. Nat Genet. 15 Jan 2018.

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    2018-04-27 liye789132251
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    2018-09-17 cy0324
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    2018-08-08 canlab
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