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Deprecated: Implicit conversion from float 265.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Cell 2021 ; 184 (2): 460-475.e21 Nephropedia Template TP
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Baricitinib treatment resolves lower-airway macrophage inflammation and neutrophil recruitment in SARS-CoV-2-infected rhesus macaques #MMPMID33278358
Hoang TN; Pino M; Boddapati AK; Viox EG; Starke CE; Upadhyay AA; Gumber S; Nekorchuk M; Busman-Sahay K; Strongin Z; Harper JL; Tharp GK; Pellegrini KL; Kirejczyk S; Zandi K; Tao S; Horton TR; Beagle EN; Mahar EA; Lee MYH; Cohen J; Jean SM; Wood JS; Connor-Stroud F; Stammen RL; Delmas OM; Wang S; Cooney KA; Sayegh MN; Wang L; Filev PD; Weiskopf D; Silvestri G; Waggoner J; Piantadosi A; Kasturi SP; Al-Shakhshir H; Ribeiro SP; Sekaly RP; Levit RD; Estes JD; Vanderford TH; Schinazi RF; Bosinger SE; Paiardini M
Cell 2021[Jan]; 184 (2): 460-475.e21 PMID33278358show ga
SARS-CoV-2-induced hypercytokinemia and inflammation are critically associated with COVID-19 severity. Baricitinib, a clinically approved JAK1/JAK2 inhibitor, is currently being investigated in COVID-19 clinical trials. Here, we investigated the immunologic and virologic efficacy of baricitinib in a rhesus macaque model of SARS-CoV-2 infection. Viral shedding measured from nasal and throat swabs, bronchoalveolar lavages, and tissues was not reduced with baricitinib. Type I interferon (IFN) antiviral responses and SARS-CoV-2-specific T cell responses remained similar between the two groups. Animals treated with baricitinib showed reduced inflammation, decreased lung infiltration of inflammatory cells, reduced NETosis activity, and more limited lung pathology. Importantly, baricitinib-treated animals had a rapid and remarkably potent suppression of lung macrophage production of cytokines and chemokines responsible for inflammation and neutrophil recruitment. These data support a beneficial role for, and elucidate the immunological mechanisms underlying, the use of baricitinib as a frontline treatment for inflammation induced by SARS-CoV-2 infection.