Dual inhibition of CB1 receptors and iNOS, as a potential novel approach to the pharmacological management of acute and long COVID-19

Br J Pharmacol. 2022 May;179(10):2121-2127. doi: 10.1111/bph.15461. Epub 2021 Apr 17.

Abstract

COVID-19 (SARS-CoV-2) causes multiple inflammatory complications, resulting not only in severe lung inflammation but also harm to other organs. Although the current focus is on the management of acute COVID-19, there is growing concern about long-term effects of COVID-19 (Long Covid), such as fibroproliferative changes in the lung, heart and kidney. Therefore, the identification of therapeutic targets not only for the management of acute COVID-19 but also for preventing Long Covid are needed, and would mitigate against long-lasting health burden and economic costs, in addition to saving lives. COVID-19 induces pathological changes via multiple pathways, which could be targeted simultaneously for optimal effect. We discuss the potential pathologic function of increased activity of the endocannabinoid/CB1 receptor system and inducible NO synthase (iNOS). We advocate a polypharmacology approach, wherein a single chemical entity simultaneously interacts with CB1 receptors and iNOS causing inhibition, as a potential therapeutic strategy for COVID-19-related health complications. LINKED ARTICLES: This article is part of a themed issue on The second wave: are we any closer to efficacious pharmacotherapy for COVID 19? (BJP 75th Anniversary). To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v179.10/issuetoc.

Keywords: COVID-19; SARS-CoV-2; iNOS inhibitor; peripheral CB1 antagonist; polypharmacology; pulmonary fibrosis.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • COVID-19 Drug Treatment*
  • COVID-19* / complications
  • Endocannabinoids
  • Humans
  • Lung
  • Post-Acute COVID-19 Syndrome
  • SARS-CoV-2

Substances

  • Endocannabinoids