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Review
. 2018 Sep;19(9):1269-1292.
doi: 10.1111/obr.12703. Epub 2018 May 25.

Transient receptor potential (TRP) channels: a metabolic TR(i)P to obesity prevention and therapy

M Bishnoi  1   2 , P Khare  1 , L Brown  2   3 , S K Panchal  2
Affiliations
Review

Transient receptor potential (TRP) channels: a metabolic TR(i)P to obesity prevention and therapy

M Bishnoi et al. Obes Rev. 2018 Sep.

Abstract

Cellular transport of ions, especially by ion channels, regulates physiological function. The transient receptor potential (TRP) channels, with 30 identified so far, are cation channels with high calcium permeability. These ion channels are present in metabolically active tissues including adipose tissue, liver, gastrointestinal tract, brain (hypothalamus), pancreas and skeletal muscle, which suggests a potential role in metabolic disorders including obesity. TRP channels have potentially important roles in adipogenesis, obesity development and its prevention and therapy because of their physiological properties including calcium permeability, thermosensation and taste perception, involvement in cell metabolic signalling and hormone release. This wide range of actions means that organ-specific actions are unlikely, thus increasing the possibility of adverse effects. Delineation of responses to TRP channels has been limited by the poor selectivity of available agonists and antagonists. Food constituents that can modulate TRP channels are of interest in controlling metabolic status. TRP vanilloid 1 channels modulated by capsaicin have been the most studied, suggesting that this may be the first target for effective pharmacological modulation in obesity. This review shows that most of the TRP channels are potential targets to reduce metabolic disorders through a range of mechanisms.

Keywords: adipocytes; energy expenditure; obesity; transient receptor potential channel.

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