Suppression of the NTS-CPS1 regulatory axis by AFF1 in lung adenocarcinoma cells.

Suppression of the NTS-CPS1 regulatory axis by AFF1 in lung adenocarcinoma cells.
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DOI:
10.1016/j.jbc.2021.100319
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发表时间:
2021-01
期刊:
The Journal of biological chemistry
影响因子:
--
通讯作者:
Luo Z
Luo Z
中科院分区:
其他
文献类型:
--
作者:
Yue J;Dai Q;Hao S;Zhu S;Liu X;Tang Z;Li M;Fang H;Lin C;Luo Z

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神经肽神经降压素(NTS)在肺癌亚组中的上调与预后不良有关。然而,在肺癌中以NTS为中心的调节途径仍不清楚。在这里,我们确定了肺腺癌细胞中的NTS特异性增强子。AF 4/FMR 2(AFF)家族蛋白AFF 1占据NTS增强子并抑制NTS转录。肺腺癌基因表达数据的聚类分析表明,NTS表达与致癌因子CPS 1的表达高度正相关。详细的分析表明,IL 6通路拮抗NTS调节CPS 1。因此,我们的分析揭示了一种新的以NTS为中心的调节轴,由AFF 1作为主转录抑制因子和IL 6作为肺腺癌细胞中的拮抗剂组成。
Upregulation of the neuropeptide neurotensin (NTS) in a subgroup of lung cancers has been linked to poor prognosis. However, the regulatory pathway centered on NTS in lung cancer remains unclear. Here we identified the NTS-specific enhancer in lung adenocarcinoma cells. The AF4/FMR2 (AFF) family protein AFF1 occupies the NTS enhancer and inhibits NTS transcription. Clustering analysis of lung adenocarcinoma gene expression data demonstrated that NTS expression is highly positively correlated with the expression of the oncogenic factor CPS1. Detailed analyses demonstrated that the IL6 pathway antagonizes NTS in regulating CPS1. Thus, our analyses revealed a novel NTS-centered regulatory axis, consisting of AFF1 as a master transcription suppressor and IL6 as an antagonist in lung adenocarcinoma cells.
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