The 'alternative' EMT switch.

The 'alternative' EMT switch.
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DOI:
10.1186/bcr2915
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发表时间:
2011-08-16
期刊:
Breast cancer research : BCR
影响因子:
--
通讯作者:
Isacke CM
Isacke CM
中科院分区:
其他
文献类型:
--
作者:
Klingbeil P;Isacke CM

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上皮到间质转化(EMT)是胚胎发育中的一个重要过程,并且在许多疾病环境中被异常诱导。 Chonghui Cheng 实验室开展的工作探讨了选择性 RNA 剪接在 EMT 中的作用及其与肿瘤进展的联系。他们描述了 CD44 表达从变异亚型到标准亚型的转变,并首次表明这是正常上皮细胞经历 EMT 所必需的。此外,他们还将 CD44 标准异构体的表达与高级别乳腺癌以及磷酸肌醇 3-激酶/Akt 通路的激活和复发性疾病小鼠模型中的细胞凋亡抵抗联系起来。
Epithelial to mesenchymal transition (EMT) is an essential process in embryonic development and is aberrantly induced in many disease settings. Work carried out by Chonghui Cheng's laboratory addressed the involvement of alternative RNA splicing in EMT and its link to tumour progression. They describe a switch in CD44 expression from variant isoform(s) to the standard isoform and showed, for the first time, that this is required for normal epithelial cells to undergo EMT. In addition, they link expression of the CD44 standard isoform with high-grade breast cancer and to activation of the phosphoinositide 3-kinase/Akt pathway and apoptosis resistance in a mouse model of recurrent disease.
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