Transient receptor potential vanilloid 1 (TRPV1)-independent actions of capsaicin on cellular excitability and ion transport. 2023

Murat Oz, and Dietrich E Lorke, and Frank C Howarth
Department of Pharmacology and Therapeutics, Faculty of Pharmacy, Kuwait University, Safat, Kuwait.

Capsaicin is a naturally occurring alkaloid derived from chili pepper that is responsible for its hot pungent taste. Capsaicin is known to exert multiple pharmacological actions, including analgesia, anticancer, anti-inflammatory, antiobesity, and antioxidant effects. The transient receptor potential vanilloid subfamily member 1 (TRPV1) is the main receptor mediating the majority of the capsaicin effects. However, numerous studies suggest that the TRPV1 receptor is not the only target for capsaicin. An increasing number of studies indicates that capsaicin, at low to mid µM ranges, not only indirectly through TRPV1-mediated Ca2+ increases, but also directly modulates the functions of voltage-gated Na+ , K+ , and Ca2+ channels, as well as ligand-gated ion channels and other ion transporters and enzymes involved in cellular excitability. These TRPV1-independent effects are mediated by alterations of the biophysical properties of the lipid membrane and subsequent modulation of the functional properties of ion channels and by direct binding of capsaicin to the channels. The present study, for the first time, systematically categorizes this diverse range of non-TRPV1 targets and discusses cellular and molecular mechanisms mediating TRPV1-independent effects of capsaicin in excitable, as well as nonexcitable cells.

UI MeSH Term Description Entries
D002164 Camphor A bicyclic monoterpene ketone found widely in plants, especially CINNAMOMUM CAMPHORA. It is used topically as a skin antipruritic and as an anti-infective agent. Camphor, (+-)-Isomer,Camphor, (1R)-Isomer,Camphor, (1S)-Isomer
D002211 Capsaicin An alkylamide found in CAPSICUM that acts at TRPV CATION CHANNELS. 8-Methyl-N-Vanillyl-6-Nonenamide,Antiphlogistine Rub A-535 Capsaicin,Axsain,Capsaicine,Capsicum Farmaya,Capsidol,Capsin,Capzasin,Gelcen,Katrum,NGX-4010,Zacin,Zostrix,8 Methyl N Vanillyl 6 Nonenamide,NGX 4010,NGX4010
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D017136 Ion Transport The movement of ions across energy-transducing cell membranes. Transport can be active, passive or facilitated. Ions may travel by themselves (uniport), or as a group of two or more ions in the same (symport) or opposite (antiport) directions. Antiport,Ion Cotransport,Ion Exchange, Intracellular,Symport,Uniport,Active Ion Transport,Facilitated Ion Transport,Passive Ion Transport,Cotransport, Ion,Exchange, Intracellular Ion,Intracellular Ion Exchange,Ion Transport, Active,Ion Transport, Facilitated,Ion Transport, Passive,Transport, Active Ion,Transport, Ion
D050916 TRPV Cation Channels A subgroup of TRP cation channels named after the vanilloid receptor. They are very sensitive to TEMPERATURE; hot spicy food, and CAPSAICIN. They contain a TRP domain (a five-turn amphipathic helix with an invariant TRYPTOPHAN) and ANKYRIN repeats. Selectivity for CALCIUM over SODIUM ranges from 3 to 100 fold. Capsaicin Receptor,Vanilloid Receptor,Capsaicin Receptors,Vanilloid Receptors,Cation Channels, TRPV,Channels, TRPV Cation,Receptor, Capsaicin,Receptor, Vanilloid,Receptors, Capsaicin,Receptors, Vanilloid

Related Publications

Murat Oz, and Dietrich E Lorke, and Frank C Howarth
August 2004, Pain,
Murat Oz, and Dietrich E Lorke, and Frank C Howarth
January 2011, Current pharmaceutical biotechnology,
Murat Oz, and Dietrich E Lorke, and Frank C Howarth
January 2014, Progress in drug research. Fortschritte der Arzneimittelforschung. Progres des recherches pharmaceutiques,
Murat Oz, and Dietrich E Lorke, and Frank C Howarth
June 2015, The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society,
Murat Oz, and Dietrich E Lorke, and Frank C Howarth
September 2004, British journal of pharmacology,
Murat Oz, and Dietrich E Lorke, and Frank C Howarth
March 2013, Acta physiologica (Oxford, England),
Murat Oz, and Dietrich E Lorke, and Frank C Howarth
September 2005, The Journal of physiology,
Murat Oz, and Dietrich E Lorke, and Frank C Howarth
July 2018, Nature communications,
Murat Oz, and Dietrich E Lorke, and Frank C Howarth
October 2003, Proceedings of the National Academy of Sciences of the United States of America,
Murat Oz, and Dietrich E Lorke, and Frank C Howarth
April 2005, European journal of pharmacology,
Copied contents to your clipboard!