Acute Treatment with a Novel TRPC4/C5 Channel Inhibitor Produces Antidepressant and Anxiolytic-Like Effects in Mice

Transient receptor potential canonical (TRPC) channels are widely expressed in brain and involved in various aspects of brain function. Both TRPC4 and TRPC5 have been implicated in innate fear function, which represents a key response to environmental stress. However, to what extent the TRPC4/C5 cha...

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Veröffentlicht in:PloS one 2015-08, Vol.10 (8), p.e0136255-e0136255
Hauptverfasser: Yang, Li-Ping, Jiang, Fang-Jie, Wu, Gui-Sheng, Deng, Ke, Wen, Meng, Zhou, Xiaoju, Hong, Xuechuan, Zhu, Michael X, Luo, Huai-Rong
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container_title PloS one
container_volume 10
creator Yang, Li-Ping
Jiang, Fang-Jie
Wu, Gui-Sheng
Deng, Ke
Wen, Meng
Zhou, Xiaoju
Hong, Xuechuan
Zhu, Michael X
Luo, Huai-Rong
description Transient receptor potential canonical (TRPC) channels are widely expressed in brain and involved in various aspects of brain function. Both TRPC4 and TRPC5 have been implicated in innate fear function, which represents a key response to environmental stress. However, to what extent the TRPC4/C5 channels are involved in psychiatric disorders remains unexplored. Here, we tested the antidepressant and anxiolytic-like effects of a newly identified TRPC4/C5 inhibitor, M084. We show that a single intraperitoneal administration of M084 at 10 mg/kg body weight to C57BL/6 male mice significantly shortened the immobility time in forced swim test and tail suspension test within as short as 2 hours. The M084-treated mice spent more time exploring in illuminated and open areas in light/dark transition test and elevated plus maze test. In mice subjected to chronic unpredictable stress, M084 treatment reversed the enhanced immobility time in forced swim test and decreased the latency to feed in novelty suppressed feeding test. The treatment of M084 increased BDNF expression in both mRNA and protein levels, as well as phosphorylation levels of AKT and ERK, in prefrontal cortex. Our results indicate that M084 exerts rapid antidepressant and anxiolytic-like effects at least in part by acting on BDNF and its downstream signaling. We propose M084 as a lead compound for further druggability research.
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Both TRPC4 and TRPC5 have been implicated in innate fear function, which represents a key response to environmental stress. However, to what extent the TRPC4/C5 channels are involved in psychiatric disorders remains unexplored. Here, we tested the antidepressant and anxiolytic-like effects of a newly identified TRPC4/C5 inhibitor, M084. We show that a single intraperitoneal administration of M084 at 10 mg/kg body weight to C57BL/6 male mice significantly shortened the immobility time in forced swim test and tail suspension test within as short as 2 hours. The M084-treated mice spent more time exploring in illuminated and open areas in light/dark transition test and elevated plus maze test. In mice subjected to chronic unpredictable stress, M084 treatment reversed the enhanced immobility time in forced swim test and decreased the latency to feed in novelty suppressed feeding test. The treatment of M084 increased BDNF expression in both mRNA and protein levels, as well as phosphorylation levels of AKT and ERK, in prefrontal cortex. Our results indicate that M084 exerts rapid antidepressant and anxiolytic-like effects at least in part by acting on BDNF and its downstream signaling. 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Both TRPC4 and TRPC5 have been implicated in innate fear function, which represents a key response to environmental stress. However, to what extent the TRPC4/C5 channels are involved in psychiatric disorders remains unexplored. Here, we tested the antidepressant and anxiolytic-like effects of a newly identified TRPC4/C5 inhibitor, M084. We show that a single intraperitoneal administration of M084 at 10 mg/kg body weight to C57BL/6 male mice significantly shortened the immobility time in forced swim test and tail suspension test within as short as 2 hours. The M084-treated mice spent more time exploring in illuminated and open areas in light/dark transition test and elevated plus maze test. In mice subjected to chronic unpredictable stress, M084 treatment reversed the enhanced immobility time in forced swim test and decreased the latency to feed in novelty suppressed feeding test. 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Both TRPC4 and TRPC5 have been implicated in innate fear function, which represents a key response to environmental stress. However, to what extent the TRPC4/C5 channels are involved in psychiatric disorders remains unexplored. Here, we tested the antidepressant and anxiolytic-like effects of a newly identified TRPC4/C5 inhibitor, M084. We show that a single intraperitoneal administration of M084 at 10 mg/kg body weight to C57BL/6 male mice significantly shortened the immobility time in forced swim test and tail suspension test within as short as 2 hours. The M084-treated mice spent more time exploring in illuminated and open areas in light/dark transition test and elevated plus maze test. In mice subjected to chronic unpredictable stress, M084 treatment reversed the enhanced immobility time in forced swim test and decreased the latency to feed in novelty suppressed feeding test. The treatment of M084 increased BDNF expression in both mRNA and protein levels, as well as phosphorylation levels of AKT and ERK, in prefrontal cortex. Our results indicate that M084 exerts rapid antidepressant and anxiolytic-like effects at least in part by acting on BDNF and its downstream signaling. We propose M084 as a lead compound for further druggability research.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>26317356</pmid><doi>10.1371/journal.pone.0136255</doi><oa>free_for_read</oa></addata></record>
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subjects AKT protein
Animals
Anti-Anxiety Agents - chemistry
Anti-Anxiety Agents - pharmacology
Antidepressants
Antidepressive Agents - chemistry
Antidepressive Agents - pharmacology
Anxiety
Anxiolytics
Behavior
Biosynthesis
Body weight
Brain
Brain-derived neurotrophic factor
Brain-Derived Neurotrophic Factor - biosynthesis
Channels
Education
Environmental stress
Extracellular Signal-Regulated MAP Kinases - metabolism
Gene expression
Inhibitors
Kinases
Laboratory animals
Latency
Light
Male
MAP Kinase Signaling System - drug effects
Maze Learning - drug effects
Mental depression
Mental disorders
Mice
mRNA
Neurogenesis
Neurosciences
Pharmaceutical sciences
Phosphorylation
Prefrontal cortex
Prefrontal Cortex - metabolism
Prefrontal Cortex - pathology
Proteins
Proto-Oncogene Proteins c-akt - metabolism
Psychiatry
Stress
Stress, Psychological - drug therapy
Stress, Psychological - metabolism
Stress, Psychological - pathology
Transient receptor potential proteins
TRPC Cation Channels - antagonists & inhibitors
TRPC Cation Channels - metabolism
Virology
title Acute Treatment with a Novel TRPC4/C5 Channel Inhibitor Produces Antidepressant and Anxiolytic-Like Effects in Mice
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