The Role of Endothelium in COVID-19

Int J Mol Sci. 2021 Nov 3;22(21):11920. doi: 10.3390/ijms222111920.

Abstract

The 2019 novel coronavirus, known as severe acute respiratory syndrome-coronavirus 2 (SARS-CoV-2) or coronavirus disease 2019 (COVID-19), is causing a global pandemic. The virus primarily affects the upper and lower respiratory tracts and raises the risk of a variety of non-pulmonary consequences, the most severe and possibly fatal of which are cardiovascular problems. Data show that almost one-third of the patients with a moderate or severe form of COVID-19 had preexisting cardiovascular comorbidities such as diabetes mellitus, obesity, hypertension, heart failure, or coronary artery disease. SARS-CoV2 causes hyper inflammation, hypoxia, apoptosis, and a renin-angiotensin system imbalance in a variety of cell types, primarily endothelial cells. Profound endothelial dysfunction associated with COVID-19 can be the cause of impaired organ perfusion that may generate acute myocardial injury, renal failure, and a procoagulant state resulting in thromboembolic events. We discuss the most recent results on the involvement of endothelial dysfunction in the pathogenesis of COVID-19 in patients with cardiometabolic diseases in this review. We also provide insights on treatments that may reduce the severity of this viral infection.

Keywords: COVID-19; SARS-CoV-2; complications; endothelium; pathogenesis.

Publication types

  • Review

MeSH terms

  • COVID-19 / complications
  • COVID-19 / pathology*
  • COVID-19 / virology
  • Cytokine Release Syndrome / etiology
  • Endothelial Cells / cytology
  • Endothelial Cells / metabolism*
  • Endothelial Cells / virology
  • Heart Failure / etiology
  • Humans
  • Renal Insufficiency / etiology
  • Renin-Angiotensin System / physiology
  • SARS-CoV-2 / isolation & purification
  • Thrombosis / etiology