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Proof-of-Concept Studies With a Computationally Designed Mpro Inhibitor as a Synergistic Combination Regimen Alternative to Paxlovid

Papini et al., PNAS. 2024.

https://www.pnas.org/doi/abs/10.1073/pnas.2320713121?url_ver=Z39.88-2003&rfr_id=ori%3Arid%3Acrossref.org&rfr_dat=cr_pub%20%200pubmed

As the spread and evolution of SARS-CoV-2 continues, it is important to continue to not only work to prevent transmission but to develop improved antiviral treatments as well. The SARS-CoV-2 main protease (Mpro) has been established as a prominent druggable target. In the current study, investigators evaluate Mpro61 as a lead compound, utilizing structural studies, in vitro pharmacological profiling to examine possible off-target effects and toxicity, cellular studies, and testing in a male and female mouse model for SARS-CoV-2 infection. Results indicate favorable pharmacological properties, efficacy, and drug synergy, as well as complete recovery from subsequent challenge by SARS-CoV-2, establishing Mpro61 as a promising potential preclinical candidate. Supported by ORIP (R24OD026440, S10OD021527), NIAID, and NIGMS.

Host Genetic Variation Impacts SARS-CoV-2 Vaccination Response in the Diversity Outbred Mouse Population

Cruz Cisneros et al., Vaccines. 2024.

https://pubmed.ncbi.nlm.nih.gov/38276675/

The COVID-19 pandemic led to the rapid and worldwide development of highly effective vaccines against SARS-CoV-2. Although host genetic factors are known to affect vaccine efficacy for such respiratory pathogens as influenza and tuberculosis, the impact of host genetic variation on vaccine efficacy against COVID-19 is not well understood. Investigators used the diversity outbred mouse model to study the effects of genetic variation on vaccine efficiency. Data indicate that variations in vaccine response in mice are heritable, similar to that in human populations. Supported by ORIP (U42OD010924), NIAID, and NIGMS.