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NK cell dysfunction is linked with disease severity in SARS‐CoV‐2 patients
Author(s) -
Dizaji Asl Khadijeh,
Mazloumi Zeinab,
Majidi Ghazal,
Kalarestaghi Hossein,
Sabetkam Shahnaz,
Rafat Ali
Publication year - 2022
Publication title -
cell biochemistry and function
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.933
H-Index - 61
eISSN - 1099-0844
pISSN - 0263-6484
DOI - 10.1002/cbf.3725
Subject(s) - degranulation , perforin , granzyme , immunology , cytotoxic t cell , disease , receptor , severe acute respiratory syndrome , innate immune system , medicine , immune system , biology , cd8 , covid-19 , infectious disease (medical specialty) , biochemistry , in vitro
SARS‐CoV‐2 first raised from Wuhan City, Hubei Province in November 2019. The respiratory disorder, cough, weakness, fever are the main clinical symptoms of coronavirus disease 2019 (COVID‐19) patients. Natural Killer (NK) cells as a first defense barrier of innate immune system have an essential role in early defense against pulmonary virus. They kill the infected cells by inducing apoptosis or the degranulation of perforin and granzymes. Collectively, NK cells function are coordinated by the transmitted signals from activating and inhibitory receptors. It is clear that the cytotoxic function of NK cells is disrupted in COVID‐19 patients due to the dysregulation of activating and inhibitory receptors. Therefore, better understanding of the activating and inhibitory receptors mechanism could facilitate the treatment strategy in clinic. To improve the efficacy of immunotherapy in COVID‐19 patients, the functional detail of NK cell and manipulation of their key checkpoints are gathered in current review.