Melatonin : Roles in influenza, Covid-19, and other viral infections

© 2020 John Wiley & Sons, Ltd..

There is a growing appreciation that the regulation of the melatonergic pathways, both pineal and systemic, may be an important aspect in how viruses drive the cellular changes that underpin their control of cellular function. We review the melatonergic pathway role in viral infections, emphasizing influenza and covid-19 infections. Viral, or preexistent, suppression of pineal melatonin disinhibits neutrophil attraction, thereby contributing to an initial "cytokine storm", as well as the regulation of other immune cells. Melatonin induces the circadian gene, Bmal1, which disinhibits the pyruvate dehydrogenase complex (PDC), countering viral inhibition of Bmal1/PDC. PDC drives mitochondrial conversion of pyruvate to acetyl-coenzyme A (acetyl-CoA), thereby increasing the tricarboxylic acid cycle, oxidative phosphorylation, and ATP production. Pineal melatonin suppression attenuates this, preventing the circadian "resetting" of mitochondrial metabolism. This is especially relevant in immune cells, where shifting metabolism from glycolytic to oxidative phosphorylation, switches cells from reactive to quiescent phenotypes. Acetyl-CoA is a necessary cosubstrate for arylalkylamine N-acetyltransferase, providing an acetyl group to serotonin, and thereby initiating the melatonergic pathway. Consequently, pineal melatonin regulates mitochondrial melatonin and immune cell phenotype. Virus- and cytokine-storm-driven control of the pineal and mitochondrial melatonergic pathway therefore regulates immune responses. Virus-and cytokine storm-driven changes also increase gut permeability and dysbiosis, thereby suppressing levels of the short-chain fatty acid, butyrate, and increasing circulating lipopolysaccharide (LPS). The alterations in butyrate and LPS can promote viral replication and host symptom severity via impacts on the melatonergic pathway. Focussing on immune regulators has treatment implications for covid-19 and other viral infections.

Medienart:

E-Artikel

Erscheinungsjahr:

2020

Erschienen:

2020

Enthalten in:

Zur Gesamtaufnahme - volume:30

Enthalten in:

Reviews in medical virology - 30(2020), 3 vom: 01. Mai, Seite e2109

Sprache:

Englisch

Beteiligte Personen:

Anderson, George [VerfasserIn]
Reiter, Russel J [VerfasserIn]

Links:

Volltext

Themen:

Aryl hydrocarbon receptor
Circadian Rhythm Signaling Peptides and Proteins
Covid-19
Cytokines
Immune
Influenza
JL5DK93RCL
Journal Article
Melatonin
Metabolism
Mitochondria
Review
Sirtuin
Treatment
Viral infection

Anmerkungen:

Date Completed 19.05.2020

Date Revised 28.03.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1002/rmv.2109

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM308993071