Long noncoding RNA ENST00000508435 promotes migration of breast cancer via FXR 1.

Long noncoding RNA ENST00000508435 promotes migration of breast cancer via FXR 1.
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长非编码RNA ENST00000508435通过FXR 1促进乳腺癌迁移

DOI:
10.1080/19336918.2021.1921402
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发表时间:
2021-12
影响因子:
3.2
通讯作者:
Zhou P
Zhou P
中科院分区:
生物学3区
文献类型:
--
作者:
Li L;Jin Y;Wang X;Wang L;Sun Y;Luo Y;Ni X;Lu Q;Wei W;Zhi X;Yu J;Zhu W;Zhou P

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摘要LncRNA在肿瘤进展中起关键作用。然而,它在乳腺癌中的作用仍不清楚。在这里,我们报告了一种新发现的lncRNA,ENST 00000508435,它可以在乳腺癌细胞和组织中显着上调。我们发现ENST 00000508435的表达与肿瘤大小、淋巴结转移和HER 2呈正相关。更有趣的是,ENST 00000508435的过表达显著增加了细胞迁移,而特异性敲低则导致相反的结果。RNA pull-down和RNA免疫沉淀实验表明ENST 00000508435可直接与FXR 1结合促进肿瘤转移。ENST 00000508435与FXR 1正相关。FXR 1在乳腺肿瘤中也显著上调。综上所述,我们提出ENST 00000508435调节FXR 1促进乳腺癌转移。
ABSTRACT LncRNA plays a critical role in tumor progression. However, the role it executes in breast cancer is still unclear. Here, we report a newly discovered lncRNA, ENST00000508435, which could be remarkably up-regulated in breast cancer cells and tissues. We found that the expression of ENST00000508435 was positively correlated with tumor size, lymph node metastasis and HER2. More interesting, overexpression of ENST00000508435 significantly increased cell migration, while specific knockdown led to the opposite. RNA pull-down and RNA immunoprecipitation assays demonstrated that ENST00000508435 could directly bind to FXR1 to promote tumor metastasis. ENST00000508435 and FXR1 were positively correlated. FXR1 was also significantly up-regulated in breast tumors. Taken together, we propose that ENST00000508435 regulates FXR1 to promote breast cancer metastasis.
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