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Computational screening of camostat and related compounds against human TMPRSS2: A potential treatment of COVID-19.

ABSTRACT: The global coronavirus pandemic has burdened the human population with mass fatalities and disastrous socio-economic consequences. The frequent occurrence of these new variants has fueled the already prevailing challenge. There is still a necessity for highly effective small molecular agents to prevent severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. Here, we targeted the human transmembrane surface protease TMPRSS2, which is essential for proteolytic activation of SARS-CoV-2. Camostat is a well-known inhibitor of serine proteases and an effective TMPRSS2 inhibitor. A virtual library of camostat-like compounds was computationally screened against the catalytic site of TMPRSS2. Following a sequential in-depth molecular docking and dynamics simulation, we report the compounds that exhibited promising efficacy against TMPRSS2. The molecular docking and MM/PBSA free energy calculation study indicates these compounds carry excellent binding affinity against TMPRSS2 and found them more effective than camostat. The study will open doors for the effective treatment of coronavirus disease 2019.

SUBMITTER: Sharma T

PROVIDER: S-EPMC8787670 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature

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Computational screening of camostat and related compounds against human TMPRSS2: A potential treatment of COVID-19.

Sharma Tanuj T Baig Mohammad Hassan MH Khan Mohd Imran MI Alotaibi Saqer S SS Alorabi Mohammed M Dong Jae-June JJ

Saudi pharmaceutical journal : SPJ : the official publication of the Saudi Pharmaceutical Society 20220119 3

The global coronavirus pandemic has burdened the human population with mass fatalities and disastrous socio-economic consequences. The frequent occurrence of these new variants has fueled the already prevailing challenge. There is still a necessity for highly effective small molecular agents to prevent severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. Here, we targeted the human transmembrane surface protease TMPRSS2, which is essential for proteolytic activation of SARS-Co ...[more]

PMID: 35095307

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Project description:Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the viral pathogen causing the coronavirus disease 2019 (COVID-19) global pandemic. No effective treatment for COVID-19 has been established yet. The serine protease transmembrane protease serine 2 (TMPRSS2) is essential for viral spread and pathogenicity by facilitating the entry of SARS-CoV-2 into host cells. The protease inhibitor camostat, an anticoagulant used in the clinic, has potential anti-inflammatory and antiviral activities against COVID-19. However, the potential mechanisms of viral resistance and antiviral activity of camostat are unclear. Herein, we demonstrate high inhibitory potencies of camostat for a panel of serine proteases, indicating that camostat is a broad-spectrum inhibitor of serine proteases. In addition, we determined the crystal structure of camostat in complex with a serine protease (uPA [urokinase-type plasminogen activator]), which reveals that camostat is inserted in the S1 pocket of uPA but is hydrolyzed by uPA, and the cleaved camostat covalently binds to Ser195. We also generated a homology model of the structure of the TMPRSS2 serine protease domain. The model shows that camostat uses the same inhibitory mechanism to inhibit the activity of TMPRSS2, subsequently preventing SARS-CoV-2 spread. IMPORTANCE Serine proteases are a large family of enzymes critical for multiple physiological processes and proven diagnostic and therapeutic targets in several clinical indications. The serine protease transmembrane protease serine 2 (TMPRSS2) was recently found to mediate SARS-CoV-2 entry into the host. Camostat mesylate (FOY 305), a serine protease inhibitor active against TMPRSS2 and used for the treatment of oral squamous cell carcinoma and chronic pancreatitis, inhibits SARS-CoV-2 infection of human lung cells. However, the direct inhibition mechanism of camostat mesylate for TMPRSS2 is unclear. Herein, we demonstrate that camostat uses the same inhibitory mechanism to inhibit the activity of TMPRSS2 as uPA, subsequently preventing SARS-CoV-2 spread.

Dataset Information

Computational screening of camostat and related compounds against human TMPRSS2: A potential treatment of COVID-19.

Publications

Computational screening of camostat and related compounds against human TMPRSS2: A potential treatment of COVID-19.

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