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Nat Commun:原发性前列腺癌整体表观遗传学分类研究

2018-12-22 AlexYang MedSci原创

雄激素受体(AR)是前列腺癌中的关键驱使转录因子,受表观遗传学的紧密调控。到目前为止,大多数表观遗传学分析都在细胞系或者有限的组织样本中进行。最近,有研究人员为了综合的研究原发性前列腺癌的表观遗传学背景,在100个前列腺癌肿瘤中对AR和组蛋白修饰标记(H3K27ac, H3K4me3, H3K27me3)进行了RNA-seq和ChIP-seq分析。研究发现,5种数据类型的整体分子亚型阐释了3种主要

雄激素受体(AR)是前列腺癌中的关键驱使转录因子,受表观遗传学的紧密调控。到目前为止,大多数表观遗传学分析都在细胞系或者有限的组织样本中进行。

最近,有研究人员为了综合的研究原发性前列腺癌的表观遗传学背景,在100个前列腺癌肿瘤中对AR和组蛋白修饰标记(H3K27ac, H3K4me3, H3K27me3)进行了RNA-seq和ChIP-seq分析。研究发现,5种数据类型的整体分子亚型阐释了3种主要的原发性前列腺癌亚型,其中2种与TMPRSS2-ERG明显相关。重要的是,他们鉴定了第3种亚型,表现为AR低的染色质结合能力和火星,但是FGF和WNT信号活性很高。虽然神经内分泌标记基因为阳性,这些肿瘤与拷贝数无关,并且突变程度低,且与腔B亚型相关的不良治疗结果基因特性显著减少。

最后,研究人员指出,他们阐释了前列腺癌中转录和表观遗传控制的一种特殊机制,表明了3种亚型中AR决定的严格基因调控的差异性。

原始出处:

Suzan Stelloo, Ekaterina Nevedomskaya, Yongsoo Kim et al. Integrative epigenetic taxonomy of primary prostate cancer. Nat Commun. 21 Nov 2018.

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    2019-01-20 liuli5079
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    2019-01-09 kafei

    学习了谢谢

    0

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