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Updated: Oct 19, 2025

Quantitative Structure-Activity Relationship, Activity Prediction, and Molecular Dynamics of Non-nucleotide Reverse Transcriptase Inhibitors
Published on: May 9, 2025
Enzyme inhibition as a potential therapeutic strategy to treat COVID-19 infection
Lukas Paulsson-Habegger1, Andrew K Snabaitis1, Stephen P Wren1
1School of Life Sciences, Pharmacy and Chemistry, Faculty of Science, Engineering and Computing, Kingston University, Penrhyn Road, Kingston-upon-Thames KT1 2EE, UK.
Abstract:
With the emergence of the third infectious and virulent coronavirus within the past two decades, it has become increasingly important to understand how the virus causes infection. This will inform therapeutic strategies that target vulnerabilities in the vital processes through which the virus enters cells. This review identifies enzymes responsible for SARS-CoV-2 viral entry into cells (ACE2, Furin, TMPRSS2) and discuss compounds proposed to inhibit viral entry with the end goal of treating COVID-19 infection. We argue that TMPRSS2 inhibitors show the most promise in potentially treating COVID-19, in addition to being a pre-existing medication with fewer predicted side-effects.
Insights
Understanding SARS-CoV-2 entry is key for COVID-19 treatments. TMPRSS2 inhibitors show promise for treating infections, offering potential benefits with fewer side effects.
Area of Science:
- Virology
- Infectious Diseases
- Drug Discovery
Background:
- The emergence of SARS-CoV-2, the virus causing COVID-19, necessitates understanding its cellular entry mechanisms.
- Identifying viral entry pathways is crucial for developing effective therapeutic strategies against coronaviruses.
Purpose of the Study:
- To review the key enzymes involved in SARS-CoV-2 cellular entry.
- To discuss potential therapeutic compounds targeting these enzymes for COVID-19 treatment.
Main Methods:
- Literature review of scientific articles on SARS-CoV-2 entry mechanisms.
- Analysis of enzymes such as Angiotensin-Converting Enzyme 2 (ACE2), Furin, and Transmembrane Serine Protease 2 (TMPRSS2).
- Evaluation of compounds proposed to inhibit viral entry.
Main Results:
- ACE2, Furin, and TMPRSS2 are identified as critical enzymes for SARS-CoV-2 entry.
- Various compounds have been proposed to inhibit these viral entry enzymes.
- TMPRSS2 inhibitors demonstrate significant promise for COVID-19 treatment.
Conclusions:
- Targeting TMPRSS2 offers a promising therapeutic strategy for COVID-19.
- TMPRSS2 inhibitors may provide a viable treatment option due to their potential for fewer side effects and existing availability.
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