LncRNA HOTTIP-Mediated HOXA11 Expression Promotes Cell Growth, Migration and Inhibits Cell Apoptosis in Breast Cancer.

LncRNA HOTTIP-Mediated HOXA11 Expression Promotes Cell Growth, Migration and Inhibits Cell Apoptosis in Breast Cancer.
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LncRNA HOTTIP 介导的 HOXA11 表达促进乳腺癌细胞生长、迁移并抑制细胞凋亡

DOI:
10.3390/ijms19020472
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发表时间:
2018-02-06
影响因子:
5.6
通讯作者:
Zhu W
Zhu W
中科院分区:
生物学2区
文献类型:
--
作者:
Sun Y;Zeng C;Gan S;Li H;Cheng Y;Chen D;Li R;Zhu W

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乳腺癌作为女性癌症死亡的最常见原因,其发病机制仍不清楚。在这里,我们报告了一个长的非编码RNA(lncRNA),HOTTIP(HOXA转录在远端),这可能在乳腺癌的发病机制中发挥重要作用。通过体内、外的获得和丧失实验,我们观察到HOTTIP/HOXA 11在乳腺癌细胞系MCF-7中显著上调,而HOTTIP或HOXA 11下调,这可能抑制乳腺癌MCF-7细胞的增殖和迁移,但促进细胞凋亡。此外,通过HOXA 11过表达的进一步拯救实验,我们发现了HOTTIP与其物理HOXA簇之一HOXA 11之间的新的潜在调控机制。因此,HOTTIP可以介导,至少部分地,HOXA 11的表达参与细胞生长,迁移和凋亡的乳腺癌MCF-7细胞。
As the most common cause of cancer death in women, the pathogenesis of breast cancer still remains unclear. Here, we reported a long non-coding RNA (lncRNA), HOTTIP (HOXA transcript at the distal tip), that may play an important role in the pathogenesis of breast cancer. Using gain-and-loss-of experiments in vitro and in vivo, we observed the marked upregulation of HOTTIP/HOXA11 in the breast cancer cell line, MCF-7, and the downregulation of HOTTIP or HOXA11, which might inhibit cell proliferation and migration but promote cell apoptosis in breast cancer MCF-7 cells. In addition, by further rescue experiments with HOXA11 overexpression, we uncovered a novel potential regulatory mechanism between HOTTIP and one of its physical HOXA clusters, HOXA11. Hence, HOTTIP may mediate, at least partly, HOXA11 expression involved in cell growth, migration, and apoptosis of breast cancer MCF-7 cells.
DOI: 10.1038/onc.2017.184
发表时间: 2017-10-12
期刊: Oncogene
影响因子: 8
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发表时间: 2017-12-01
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发表时间: 2017-12-01
期刊: BREAST
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