COVID-19 infection: an overview on cytokine storm and related interventions

Virol J. 2022 May 26;19(1):92. doi: 10.1186/s12985-022-01814-1.

Abstract

Coronavirus disease 2019 (COVID-19) caused by the severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) has posed a significant threat to global health. This virus affects the respiratory tract and usually leads to pneumonia in most patients and acute respiratory distress syndrome (ARDS) in 15% of cases. ARDS is one of the leading causes of death in patients with COVID-19 and is mainly triggered by elevated levels of pro-inflammatory cytokines, referred to as cytokine storm. Interleukins, such as interleukin-6 (1L-6), interleukin-1 (IL-1), interleukin-17 (IL-17), and tumor necrosis factor-alpha (TNF-α) play a very significant role in lung damage in ARDS patients through the impairments of the respiratory epithelium. Cytokine storm is defined as acute overproduction and uncontrolled release of pro-inflammatory markers, both locally and systemically. The eradication of COVID-19 is currently practically impossible, and there is no specific treatment for critically ill patients with COVID-19; however, suppressing the inflammatory response may be a possible strategy. In light of this, we review the efficacy of specific inhibitors of IL6, IL1, IL-17, and TNF-α for treating COVID-19-related infections to manage COVID-19 and improve the survival rate for patients suffering from severe conditions.

Keywords: ARDS; COVID-19; CRS; IL-17; IL1; IL6; TNF-α.

Publication types

  • Review

MeSH terms

  • COVID-19* / complications
  • Cytokine Release Syndrome
  • Humans
  • Interleukin-17
  • Interleukin-6
  • Lung / pathology
  • Respiratory Distress Syndrome*
  • SARS-CoV-2
  • Tumor Necrosis Factor-alpha

Substances

  • Interleukin-17
  • Interleukin-6
  • Tumor Necrosis Factor-alpha