HBD-2 binds SARS-CoV-2 RBD and blocks viral entry: Strategy to combat COVID-19.

HBD-2 binds SARS-CoV-2 RBD and blocks viral entry: Strategy to combat COVID-19.
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HBD-2结合SARS-CoV-2 RBD并阻止病毒进入:抗击COVID-19的策略。

DOI:
10.1016/j.isci.2022.103856
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发表时间:
2022-03-18
期刊:
影响因子:
5.8
通讯作者:
Weinberg A
Weinberg A
中科院分区:
综合性期刊2区
文献类型:
--
作者:
Zhang L;Ghosh SK;Basavarajappa SC;Chen Y;Shrestha P;Penfield J;Brewer A;Ramakrishnan P;Buck M;Weinberg A

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需要新的方法来补充疫苗接种,以对抗 SARS-CoV-2 的传播并阻止与 COVID-19 相关的死亡和医疗并发症。人β防御素 2 (hBD-2) 是一种天然存在的上皮细胞衍生的宿主防御肽,具有抗病毒特性。我们全面的计算机模拟研究表明,hBD-2 与 CoV-2-RBD 上与 ACE2 受体对接的位点结合。生物物理测量证实,hBD-2 确实与 CoV-2 受体结合域 (RBD) 结合(通过表面等离子共振,KD ∼ 2μM),从而阻止其与表达 ACE2 的细胞结合。重要的是,hBD-2 通过阻断表达 ACE2 的人类细胞的 CoV-2/spike 假病毒感染而不是 VSVG 介导的感染而表现出特异性,IC50 为 2.8 ± 0.4 μM。这些有希望的发现为开发 hBD-2 和/或其衍生物和模拟物提供了机会,以安全有效地用作预防 SARS-CoV-2 感染的药物。 HBD-2 在硅片中的 ACE2 相互作用位点处结合刺突-RBD 生物物理和生物学测定证实 hBD-2 与刺突-RBD 结合 HBD-2 会阻断刺突-RBD:结合 ACE2 的 HBD-2 可防止 CoV-2/刺突假病毒体感染表达 ACE2 的人类细胞病毒学
New approaches to complement vaccination are needed to combat the spread of SARS-CoV-2 and stop COVID-19-related deaths and medical complications. Human beta defensin 2 (hBD-2) is a naturally occurring epithelial cell-derived host defense peptide that has anti-viral properties. Our comprehensive in-silico studies demonstrate that hBD-2 binds the site on the CoV-2-RBD that docks with the ACE2 receptor. Biophysical measurements confirm that hBD-2 indeed binds to the CoV-2-receptor-binding domain (RBD) (KD ∼ 2μM by surface plasmon resonance), preventing it from binding to ACE2-expressing cells. Importantly, hBD-2 shows specificity by blocking CoV-2/spike pseudoviral infection, but not VSVG-mediated infection, of ACE2-expressing human cells with an IC50 of 2.8 ± 0.4 μM. These promising findings offer opportunities to develop hBD-2 and/or its derivatives and mimetics to safely and effectively use as agents to prevent SARS-CoV-2 infection. HBD-2 binds spike-RBD at the ACE2 interaction site in silico Biophysical and biological assays confirm hBD-2 binding to spike-RBD HBD-2 blocks spike-RBD:ACE2 binding HBD-2 prevents CoV-2/spike pseudovirions from infecting ACE2-expressing human cells Therapeutics; Virology
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