Role of NLRP3 inflammasome in COVID-19 and periodontitis: Possible protective effect of melatonin

Med Hypotheses. 2021 Jun:151:110588. doi: 10.1016/j.mehy.2021.110588. Epub 2021 Mar 30.

Abstract

Daily new information emerges regarding the COVID-19, infection of SARS-CoV-2, which is considered a global pandemic. Angiotensin-converting enzyme 2 (ACE2) and transmembrane protease serine 2 (TMPRSS2) are required to complete the viral invasion pathway and are present in the oral mucosa, gingiva and periodontal pocket. Thus, increasing the likelihood of periodontitis and gingivitis caused by COVID-19. The cytokine storm during COVID-19 similarly arises during periodontal inflammation. Studies have reported that NOD-Like Receptor family pyrin domain-containing 3 (NLRP3) inflammasome is significant in the cytokine storm. Recently, the course of the COVID-19 has been related to the melatonin levels in both COVID-19 and periodontal diseases. It is known that melatonin prevents the activation of NLRP3 inflammasome. In light of these findings, we think that melatonin treatment during COVID-19 or periodontal diseases may prevent the damage seen in periodontal tissues by preventing the activation of NLRP3 inflammasome.

Keywords: COVID-19; Melatonin; NLRP3; Periodontitis; SARS-CoV-2.

MeSH terms

  • COVID-19*
  • Humans
  • Inflammasomes
  • Melatonin* / therapeutic use
  • NLR Family, Pyrin Domain-Containing 3 Protein
  • Periodontitis*
  • SARS-CoV-2

Substances

  • Inflammasomes
  • NLR Family, Pyrin Domain-Containing 3 Protein
  • Melatonin