Identification of the SARS-CoV-2 Entry Receptor ACE2 as a Direct Target for Transcriptional Repression by Miz1.

Identification of the SARS-CoV-2 Entry Receptor ACE2 as a Direct Target for Transcriptional Repression by Miz1.
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DOI:
10.3389/fimmu.2021.648815
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发表时间:
2021
影响因子:
7.3
通讯作者:
Liu J
Liu J
中科院分区:
医学2区
文献类型:
--
作者:
Yang J;Perez EA;Hou C;Zhang P;Van Scoyk M;Winn RA;Rong L;Liu J

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多项证据表明,吸烟或慢性阻塞性肺疾病会上调血管紧张素转换酶2,而血管紧张素转换酶2是严重急性呼吸综合征冠状病毒2进入的细胞受体,使个体容易患上2019年严重冠状病毒病。这种观察结果的原因尚不清楚。我们最近报道了小鼠肺上皮中Miz1功能的丧失导致自发性copd样表型,与血管紧张素转换酶2的上调有关。我们还报道了香烟烟雾暴露下调肺上皮细胞和小鼠中的Miz1,并且在COPD患者的肺中也下调Miz1。在这里,我们提供了进一步的证据,证明Miz1直接结合并抑制小鼠和人肺上皮细胞中血管紧张素转换酶2的启动子。我们的数据为在吸烟者和COPD患者中观察到的血管紧张素转换酶2上调提供了潜在的分子机制,这可能与2019年严重冠状病毒病有关。
Multiple lines of evidence have demonstrated that cigarette smoke or Chronic Obstructive Pulmonary Disease upregulates angiotensin-converting enzyme 2, the cellular receptor for the entry of the severe acute respiratory syndrome coronavirus 2, which predisposes individuals to develop severe Coronavirus disease 2019. The reason for this observation is unknown. We recently reported that the loss of function of Miz1 in the lung epithelium in mice leads to a spontaneous COPD-like phenotype, associated with upregulation of angiotensin-converting enzyme 2. We also reported that cigarette smoke exposure downregulates Miz1 in lung epithelial cells and in mice, and Miz1 is also downregulated in the lungs of COPD patients. Here, we provide further evidence that Miz1 directly binds to and represses the promoter of angiotensin-converting enzyme 2 in mouse and human lung epithelial cells. Our data provide a potential molecular mechanism for the upregulation of angiotensin-converting enzyme 2 observed in smokers and COPD patients, with implication in severe Coronavirus disease 2019.
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