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Wiley Open Access, Immunity, Inflammation and Disease, 9(11), 2023

DOI: 10.1002/iid3.1020

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Immunomodulatory approaches in managing lung inflammation in COVID‐19: A double‐edge sword

This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Data provided by SHERPA/RoMEO

Abstract

AbstractIntroductionThe novel coronavirus infectious disease 2019 (COVID‐19) which is caused by severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) has emerged as a gigantic problem. The lung is the major target organ of SARS‐CoV‐2 and some of its variants like Delta and Omicron variant adapted in such a way that these variants can significantly damage this vital organ of the body. These variants raised a few eyebrows as the outbreaks have been seen in the vaccinated population. Patients develop severe respiratory illnesses which eventually prove fatal unless treated early.Main BodyStudies have shown that SARS‐CoV‐2 causes the release of pro‐inflammatory cytokines such as interleukin (IL)‐6, IL‐1β and tumor necrosis factor (TNF)‐α which are mediators of lung inflammation, lung damage, fever, and fibrosis. Additionally, various chemokines have been found to play an important role in the disease progression. A plethora of pro‐inflammatory cytokines “cytokine storm” has been observed in severe cases of SARS‐CoV‐2 infection leading to acute respiratory distress syndrome (ARDS) and pneumonia that may prove fatal. To counteract cytokine storm‐inducing lung inflammation, several promising immunomodulatory approaches are being investigated in numerous clinical trials. However, the benefits of using these strategies should outweigh the risks involved as the use of certain immunosuppressive approaches might lead the host susceptible to secondary bacterial infections.ConclusionThe present review discusses promising immunomodulatory approaches to manage lung inflammation in COVID‐19 cases which may serve as potential therapeutic options in the future and may prove lifesaving.