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Decreased 5‐HT2cR and GHSR1a interaction in antipsychotic drug‐induced obesity

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posted on 2024-11-15, 02:08 authored by Xu-Feng HuangXu-Feng Huang, Katrina GreenKatrina Green, Y Yu
Second generation antipsychotics (SGAs), notably atypical antipsychotics includingolanzapine, clozapine and risperidone, can cause weight gain and obesity side ef-fects. Antagonism of serotonin 2c receptors (5-HT2cR) and activation of ghrelin re-ceptor type 1a (GHSR1a) signalling have been identified as a main cause of SGAinduced obesity. Here we review the pivotal regulatory role of the 5-HT2cR inghrelin-mediated appetite signalling. The 5-HT2cR dimerizes with GHSR1a to in-hibit orexigenic signalling, while 5-HT2cR antagonism reduces dimerization andincreases GHSR1a-induced food intake. Dimerization is specific to the unedited5-HT2cR isoform. 5-HT2cR antagonism by SGAs may disrupt the normal inhibi-tory tone on the GHSR1a, increasing orexigenic signalling. The 5-HT2cR and itsinteraction with the GHSR1a could serve as the basis for discovering novel ap-proaches to preventing and treating SGA-induced obesity.

History

Citation

Huang, X., Weston-Green, K. & Yu, Y. (2018). Decreased 5‐HT2cR and GHSR1a interaction in antipsychotic drug‐induced obesity. Obesity Reviews, 19 (3), 396-405.

Journal title

Obesity Reviews

Volume

19

Issue

3

Pagination

396-405

Language

English

RIS ID

129718

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