J Cell Biochem:乳腺癌EMT调节的关键轴——GRHL2 / ZEB反馈环

2017-03-11 MedSci MedSci原创

超过90%的癌症相关死亡是由转移引起的。其中,上皮-间质转化(EMT)引起肿瘤细胞的传播并且是可逆过程,间质-上皮转化(MET)允许癌细胞生长并建立潜在的致死转移性病变。最近的研究证据表明,除了E和M,细胞可以采取稳定的混合上皮/间质(E / M)状态,它们可以集体移动导致循环肿瘤细胞的簇集-转移的“坏行动者”。近期,一项发表在杂志J Cell Biochem上的研究假设EMT发生在乳腺癌所有四种

超过90%的癌症相关死亡是由转移引起的。其中,上皮-间质转化(EMT)引起肿瘤细胞的传播并且是可逆过程,间质-上皮转化(MET)允许癌细胞生长并建立潜在的致死转移性病变。


最近的研究证据表明,除了E和M,细胞可以采取稳定的混合上皮/间质(E / M)状态,它们可以集体移动导致循环肿瘤细胞的簇集-转移的“坏行动者”。

近期,一项发表在杂志J Cell Biochem上的研究假设EMT发生在乳腺癌所有四种主要组织学亚型中。研究者们确定了一组与877癌细胞系中的CDH1强相关的基因,并且确定了在细胞系差异表达基因中ZEB1,SNAIL和TWIST的过表达。 

GRHL2和ESRP1同时出现在这两组中,并且在40个乳腺癌标本中在蛋白质水平上与CDH1相关。

随后,研究者们发现GRHL2和CD24的表达与人乳腺上皮细胞中的上皮特征一致。此外,高GRHL2表达与所有4种乳腺癌亚型中更差的无复发生存率高度相关。最后,研究者们将CD24,GRHL2和ESRP1整合到EMT调节的数学模型中,以验证它们在EMT中的作用。

结果显示了多个关键的EMT / MET驱动器之间的关系,包括ZEB1,GRHL2,CD24和ESRP1,特别是在类似于三阴性乳腺癌(TNBC)的基底样乳腺癌中,被认为是最危险的亚型。

原始出处:
Mooney SM, Talebian V, et al. The GRHL2/ZEB Feedback Loop - A Key Axis in the Regulation of EMT in Breast Cancer. J Cell Biochem. 2017 Mar 7. doi: 10.1002/jcb.25974. 

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    2017-07-24 sunylz
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    2017-11-30 维他命
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    2017-03-13 虈亣靌

    很好的学习资料,谢谢了。

    0

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    2017-03-13 lfcmxl
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    2017-03-11 1dd8c52fm63(暂无匿称)

    了解了解

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