HOXC8 promotes proliferation and migration through transcriptional up-regulation of TGFβ1 in non-small cell lung cancer.

HOXC8 promotes proliferation and migration through transcriptional up-regulation of TGFβ1 in non-small cell lung cancer.
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HOXC8 通过转录上调 TGFβ1 在非小细胞肺癌中促进增殖和迁移

DOI:
10.1038/s41389-017-0016-4
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发表时间:
2018-01-17
期刊:
影响因子:
6.2
通讯作者:
Li Y
Li Y
中科院分区:
医学1区
文献类型:
--
作者:
Liu H;Zhang M;Xu S;Zhang J;Zou J;Yang C;Zhang Y;Gong C;Kai Y;Li Y

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同源盒(HOX)基因编码一系列转录因子,这些转录因子在许多过程中起着至关重要的作用,其失调与许多人类癌症的癌变有关。在本研究中,我们探讨了HOXC8在非小细胞肺癌(NSCLC)中的作用。我们发现,与正常肺组织相比,HOXC8在临床NSCLC标本中表达上调,并且HOXC8的高表达与肺癌患者的肿瘤淋巴结转移(TNM)分期、肿瘤状态、淋巴结状态和较差的无复发生存率相关。功能上,HOXC8的表达显著促进NSCLC的增殖、非锚定生长和迁移,并且HOXC8作为转录激活因子诱导tgf - β1的表达,导致NSCLC的增殖、非锚定生长和迁移增加。此外,我们证实了HOXC8的表达与NSCLC的化疗耐药和抗凋亡相关,这表明HOXC8是NSCLC对顺铂化疗增敏的一个有希望的治疗靶点。总之,我们的研究确定了HOXC8在促进tgf - β1转录和NSCLC肿瘤发生中的关键作用。
Homeobox (HOX) genes encode a family of transcription factors, which play crucial roles in numerous processes, and their dysregulation is involved in the carcinogenesis of many human cancers. In the present study, we investigated the roles of HOXC8 in non-small cell lung cancer (NSCLC). We showed that HOXC8 was upregulated in clinical NSCLC specimens compared to normal lung tissues, and the high expression of HOXC8 correlated with tumor node metastasis (TNM) stage, tumor status, lymph nodal status and poor relapse-free survival for lung cancer patients. Functionally, HOXC8 expression significantly promoted the proliferation, anchorage-independent growth and migration of NSCLC, and HOXC8 functioned as a transcription activator to induce the expression of TGFβ1, leading to an increase in the proliferation, anchorage-independent growth and migration of NSCLC. Furthermore, we demonstrated that HOXC8 expression was associated with chemoresistance and anti-apoptosis in NSCLC, suggesting that HOXC8 is a promising therapeutic target for chemosensitization of NSCLC to cisplatin. Altogether, our study defined a critical role of HOXC8 in promoting transcription of TGFβ1 and NSCLC tumorigenesis.
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