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Review
. 2022 Mar 25;12(4):478.
doi: 10.3390/life12040478.

Targeting Specific Checkpoints in the Management of SARS-CoV-2 Induced Cytokine Storm

Affiliations
Review

Targeting Specific Checkpoints in the Management of SARS-CoV-2 Induced Cytokine Storm

Abdullahi Rabiu Abubakar et al. Life (Basel). .

Abstract

COVID-19-infected patients require an intact immune system to suppress viral replication and prevent complications. However, the complications of SARS-CoV-2 infection that led to death were linked to the overproduction of proinflammatory cytokines known as cytokine storm syndrome. This article reported the various checkpoints targeted to manage the SARS-CoV-2-induced cytokine storm. The literature search was carried out using PubMed, Embase, MEDLINE, and China National Knowledge Infrastructure (CNKI) databases. Journal articles that discussed SARS-CoV-2 infection and cytokine storm were retrieved and appraised. Specific checkpoints identified in managing SARS-CoV-2 induced cytokine storm include a decrease in the level of Nod-Like Receptor 3 (NLRP3) inflammasome where drugs such as quercetin and anakinra were effective. Janus kinase-2 and signal transducer and activator of transcription-1 (JAK2/STAT1) signaling pathways were blocked by medicines such as tocilizumab, baricitinib, and quercetin. In addition, inhibition of interleukin (IL)-6 with dexamethasone, tocilizumab, and sarilumab effectively treats cytokine storm and significantly reduces mortality caused by COVID-19. Blockade of IL-1 with drugs such as canakinumab and anakinra, and inhibition of Bruton tyrosine kinase (BTK) with zanubrutinib and ibrutinib was also beneficial. These agents' overall mechanisms of action involve a decrease in circulating proinflammatory chemokines and cytokines and or blockade of their receptors. Consequently, the actions of these drugs significantly improve respiration and raise lymphocyte count and PaO2/FiO2 ratio. Targeting cytokine storms' pathogenesis genetic and molecular apparatus will substantially enhance lung function and reduce mortality due to the COVID-19 pandemic.

Keywords: COVID-19; SARS-CoV-2; cytokine storm; hyperinflammation; immune response; interleukins; pathogenesis.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Genera of coronaviruses and SARS-CoV-2 (genome and proteome).
Figure 2
Figure 2
Molecular pathogenesis of SARS-CoV-2-induced cytokine storm.
Figure 3
Figure 3
Symptoms of SARS-CoV-2 infection.
Figure 4
Figure 4
Molecular structure of SARS-CoV-2.
Figure 5
Figure 5
Progression of cytokine storm in COVID-19. CS—cytokine storm; ARDS—acute respiratory distress syndrome; MODS—multiple organ dysfunction syndromes.
Figure 6
Figure 6
Genes associated with SARS-CoV-2 infection.
Figure 7
Figure 7
SARS-CoV-2 induced thromboinflammation.

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