Home Newsletters Immunology of Infectious Disease News Postinfection Treatment with a Protease Inhibitor Increases Survival of Mice with a...

Postinfection Treatment with a Protease Inhibitor Increases Survival of Mice with a Fatal SARS-CoV-2 Infection

0
Scientists generated a series of deuterated variants of a 3CLpro inhibitor, GC376, and evaluated the antiviral effect against SARS-CoV-2.
[Proceedings of the National Academy of Sciences of the United States of America]
6445218 {6445218:KMT9D48U} apa 50 1 164219 https://www.stemcellsciencenews.com/wp-content/plugins/zotpress/
%7B%22status%22%3A%22success%22%2C%22updateneeded%22%3Afalse%2C%22instance%22%3A%22zotpress-0191ab671d220b6d01a39f8d7678171d%22%2C%22meta%22%3A%7B%22request_last%22%3A0%2C%22request_next%22%3A0%2C%22used_cache%22%3Atrue%7D%2C%22data%22%3A%5B%7B%22key%22%3A%22KMT9D48U%22%2C%22library%22%3A%7B%22id%22%3A6445218%7D%2C%22meta%22%3A%7B%22creatorSummary%22%3A%22Dampalla%20et%20al.%22%2C%22parsedDate%22%3A%222021-07-20%22%2C%22numChildren%22%3A3%7D%2C%22bib%22%3A%22%3Cdiv%20class%3D%5C%22csl-bib-body%5C%22%20style%3D%5C%22line-height%3A%202%3B%20padding-left%3A%201em%3B%20text-indent%3A-1em%3B%5C%22%3E%5Cn%20%20%3Cdiv%20class%3D%5C%22csl-entry%5C%22%3EDampalla%2C%20C.%20S.%2C%20Zheng%2C%20J.%2C%20Perera%2C%20K.%20D.%2C%20Wong%2C%20L.-Y.%20R.%2C%20Meyerholz%2C%20D.%20K.%2C%20Nguyen%2C%20H.%20N.%2C%20Kashipathy%2C%20M.%20M.%2C%20Battaile%2C%20K.%20P.%2C%20Lovell%2C%20S.%2C%20Kim%2C%20Y.%2C%20Perlman%2C%20S.%2C%20Groutas%2C%20W.%20C.%2C%20%26amp%3B%20Chang%2C%20K.-O.%20%282021%29.%20Postinfection%20treatment%20with%20a%20protease%20inhibitor%20increases%20survival%20of%20mice%20with%20a%20fatal%20SARS-CoV-2%20infection.%20%3Ci%3EProceedings%20of%20the%20National%20Academy%20of%20Sciences%3C%5C%2Fi%3E%2C%20%3Ci%3E118%3C%5C%2Fi%3E%2829%29.%20%3Ca%20href%3D%27https%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1073%5C%2Fpnas.2101555118%27%3Ehttps%3A%5C%2F%5C%2Fdoi.org%5C%2F10.1073%5C%2Fpnas.2101555118%3C%5C%2Fa%3E%20%3Ca%20title%3D%27Cite%20in%20RIS%20Format%27%20class%3D%27zp-CiteRIS%27%20href%3D%27https%3A%5C%2F%5C%2Fwww.stemcellsciencenews.com%5C%2Fwp-content%5C%2Fplugins%5C%2Fzotpress%5C%2Flib%5C%2Frequest%5C%2Frequest.cite.php%3Fapi_user_id%3D6445218%26amp%3Bitem_key%3DKMT9D48U%27%3ECite%3C%5C%2Fa%3E%20%3C%5C%2Fdiv%3E%5Cn%3C%5C%2Fdiv%3E%22%2C%22data%22%3A%7B%22itemType%22%3A%22journalArticle%22%2C%22title%22%3A%22Postinfection%20treatment%20with%20a%20protease%20inhibitor%20increases%20survival%20of%20mice%20with%20a%20fatal%20SARS-CoV-2%20infection%22%2C%22creators%22%3A%5B%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Chamandi%20S.%22%2C%22lastName%22%3A%22Dampalla%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Jian%22%2C%22lastName%22%3A%22Zheng%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Krishani%20Dinali%22%2C%22lastName%22%3A%22Perera%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Lok-Yin%20Roy%22%2C%22lastName%22%3A%22Wong%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22David%20K.%22%2C%22lastName%22%3A%22Meyerholz%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Harry%20Nhat%22%2C%22lastName%22%3A%22Nguyen%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Maithri%20M.%22%2C%22lastName%22%3A%22Kashipathy%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Kevin%20P.%22%2C%22lastName%22%3A%22Battaile%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Scott%22%2C%22lastName%22%3A%22Lovell%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Yunjeong%22%2C%22lastName%22%3A%22Kim%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Stanley%22%2C%22lastName%22%3A%22Perlman%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22William%20C.%22%2C%22lastName%22%3A%22Groutas%22%7D%2C%7B%22creatorType%22%3A%22author%22%2C%22firstName%22%3A%22Kyeong-Ok%22%2C%22lastName%22%3A%22Chang%22%7D%5D%2C%22abstractNote%22%3A%22%3Cp%3ESevere%20acute%20respiratory%20syndrome%20coronavirus%202%20%28SARS-CoV-2%29%20infection%20continues%20to%20be%20a%20serious%20global%20public%20health%20threat.%20The%203C-like%20protease%20%283CLpro%29%20is%20a%20virus%20protease%20encoded%20by%20SARS-CoV-2%2C%20which%20is%20essential%20for%20virus%20replication.%20We%20have%20previously%20reported%20a%20series%20of%20small-molecule%203CLpro%20inhibitors%20effective%20for%20inhibiting%20replication%20of%20human%20coronaviruses%20including%20SARS-CoV-2%20in%20cell%20culture%20and%20in%20animal%20models.%20Here%20we%20generated%20a%20series%20of%20deuterated%20variants%20of%20a%203CLpro%20inhibitor%2C%20GC376%2C%20and%20evaluated%20the%20antiviral%20effect%20against%20SARS-CoV-2.%20The%20deuterated%20GC376%20displayed%20potent%20inhibitory%20activity%20against%20SARS-CoV-2%20in%20the%20enzyme-%20and%20the%20cell-based%20assays.%20The%20K18-hACE2%20mice%20develop%20mild%20to%20lethal%20infection%20commensurate%20with%20SARS-CoV-2%20challenge%20doses%20and%20were%20proposed%20as%20a%20model%20for%20efficacy%20testing%20of%20antiviral%20agents.%20We%20treated%20lethally%20infected%20mice%20with%20a%20deuterated%20derivative%20of%20GC376.%20Treatment%20of%20K18-hACE2%20mice%20at%2024%20h%20postinfection%20with%20a%20derivative%20%28compound%202%29%20resulted%20in%20increased%20survival%20of%20mice%20compared%20to%20vehicle-treated%20mice.%20Lung%20virus%20titers%20were%20decreased%2C%20and%20histopathological%20changes%20were%20ameliorated%20in%20compound%202%5Cu2013treated%20mice%20compared%20to%20vehicle-treated%20mice.%20Structural%20investigation%20using%20high-resolution%20crystallography%20illuminated%20binding%20interactions%20of%203CLpro%20of%20SARS-CoV-2%20and%20SARS-CoV%20with%20deuterated%20variants%20of%20GC376.%20Taken%20together%2C%20deuterated%20GC376%20variants%20have%20excellent%20potential%20as%20antiviral%20agents%20against%20SARS-CoV-2.%3C%5C%2Fp%3E%22%2C%22date%22%3A%222021%5C%2F07%5C%2F20%22%2C%22language%22%3A%22en%22%2C%22DOI%22%3A%2210.1073%5C%2Fpnas.2101555118%22%2C%22ISSN%22%3A%220027-8424%2C%201091-6490%22%2C%22url%22%3A%22https%3A%5C%2F%5C%2Fwww.pnas.org%5C%2Fcontent%5C%2F118%5C%2F29%5C%2Fe2101555118%22%2C%22collections%22%3A%5B%5D%2C%22dateModified%22%3A%222021-07-05T21%3A31%3A05Z%22%7D%7D%5D%7D
Dampalla, C. S., Zheng, J., Perera, K. D., Wong, L.-Y. R., Meyerholz, D. K., Nguyen, H. N., Kashipathy, M. M., Battaile, K. P., Lovell, S., Kim, Y., Perlman, S., Groutas, W. C., & Chang, K.-O. (2021). Postinfection treatment with a protease inhibitor increases survival of mice with a fatal SARS-CoV-2 infection. Proceedings of the National Academy of Sciences, 118(29). https://doi.org/10.1073/pnas.2101555118 Cite
Full Article
Exit mobile version