Soluble ACE2-mediated cell entry of SARS-CoV-2 via interaction with proteins related to the renin-angiotensin system.

Soluble ACE2-mediated cell entry of SARS-CoV-2 via interaction with proteins related to the renin-angiotensin system.
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可溶性ACE 2介导的SARS-CoV-2通过与肾素-血管紧张素系统相关蛋白相互作用进入细胞。

DOI:
10.1016/j.cell.2021.02.053
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发表时间:
2021-04-15
期刊:
影响因子:
64.5
通讯作者:
Yuen KY
Yuen KY
中科院分区:
生物学1区
文献类型:
--
作者:
Yeung ML;Teng JLL;Jia L;Zhang C;Huang C;Cai JP;Zhou R;Chan KH;Zhao H;Zhu L;Siu KL;Fung SY;Yung S;Chan TM;To KK;Chan JF;Cai Z;Lau SKP;Chen Z;Jin DY;Woo PCY;Yuen KY

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严重急性呼吸综合征冠状病毒2(SARS-CoV-2)可引起急性呼吸系统疾病和多器官衰竭。寻找对SARS-CoV-2感染至关重要的人类宿主因素有助于制定治疗策略。使用对SARS-CoV-2高度敏感的人肾细胞系HK-2,我们进行了全基因组RNAi筛查,并确定了病毒依赖因子(VDF),它们在与SARS-CoV-2感染的临床表现相关的生物学途径中发挥调节作用。我们发现SARS-CoV-2受体的一种分泌型--可溶性血管紧张素转换酶2(SACE2)在SARS-CoV-2感染中起作用。进一步的研究发现,SARS-CoV-2通过其刺激物分别通过AT1或AVPR1B与sACE2或sACE2-加压素相互作用,从而利用受体介导的内吞作用。我们对VDF的鉴定和sACE2对SARS-CoV-2感染的调控作用有助于深入了解SARS-CoV-2的发病机制和细胞进入机制,以及对新冠肺炎的潜在治疗策略。使用一种感染允许的人类肾脏细胞系,Yeung等人。结果表明,从宿主细胞表面裂解和释放的可溶性形式的ACE2介导参与肾素-血管紧张素系统信号转导的受体与SARS-CoV-2的结合和摄取。
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) can cause acute respiratory disease and multiorgan failure. Finding human host factors that are essential for SARS-CoV-2 infection could facilitate the formulation of treatment strategies. Using a human kidney cell line—HK-2—that is highly susceptible to SARS-CoV-2, we performed a genome-wide RNAi screen and identified virus dependency factors (VDFs), which play regulatory roles in biological pathways linked to clinical manifestations of SARS-CoV-2 infection. We found a role for a secretory form of SARS-CoV-2 receptor, soluble angiotensin converting enzyme 2 (sACE2), in SARS-CoV-2 infection. Further investigation revealed that SARS-CoV-2 exploits receptor-mediated endocytosis through interaction between its spike with sACE2 or sACE2-vasopressin via AT1 or AVPR1B, respectively. Our identification of VDFs and the regulatory effect of sACE2 on SARS-CoV-2 infection shed insight into pathogenesis and cell entry mechanisms of SARS-CoV-2 as well as potential treatment strategies for COVID-19. Using an infection-permissive human kidney cell line, Yeung et al. show that a soluble form of ACE2 that is cleaved and liberated from the host cell surface mediates SARS-CoV-2 binding and uptake by receptors involved in renin-angiotensin system signaling.
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