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The Anticonvulsant Effects of SR 57227 on Pentylenetetrazole-Induced Seizure in Mice

Recently, studies have shown that serotonin plays an important role in the control of seizure. However, the specific role of 5-HT receptor subtypes is not yet well described, in particular that of the 5-HT(3) receptor. The present study was aimed to investigate the role of 5-HT(3) receptor on the pe...

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Autores principales: Li, Bingjin, Wang, Liang, Sun, Zhihui, Zhou, Yang, Shao, Dongyuan, Zhao, Jing, Song, Yunong, Lv, Jiayin, Dong, Xue, Liu, Changhong, Wang, Pu, Zhang, Xingyi, Cui, Ranji
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3972186/
https://www.ncbi.nlm.nih.gov/pubmed/24690630
http://dx.doi.org/10.1371/journal.pone.0093158
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author Li, Bingjin
Wang, Liang
Sun, Zhihui
Zhou, Yang
Shao, Dongyuan
Zhao, Jing
Song, Yunong
Lv, Jiayin
Dong, Xue
Liu, Changhong
Wang, Pu
Zhang, Xingyi
Cui, Ranji
author_facet Li, Bingjin
Wang, Liang
Sun, Zhihui
Zhou, Yang
Shao, Dongyuan
Zhao, Jing
Song, Yunong
Lv, Jiayin
Dong, Xue
Liu, Changhong
Wang, Pu
Zhang, Xingyi
Cui, Ranji
author_sort Li, Bingjin
collection PubMed
description Recently, studies have shown that serotonin plays an important role in the control of seizure. However, the specific role of 5-HT receptor subtypes is not yet well described, in particular that of the 5-HT(3) receptor. The present study was aimed to investigate the role of 5-HT(3) receptor on the pentylenetetrazole (PTZ)-induced seizure in mice. Firstly, seizure latency was significantly prolonged by a 5-HT(3) receptor agonist SR 57227 in a dose-dependent manner. Seizure score and mortality were also decreased by SR 57227 in PTZ-treated mice. Furthermore, these anticonvulsant effects of SR 57227 were inhibited by a 5-HT(3) receptor antagonist ondansetron. However, ondansetron alone had no effect on seizure latency, seizure score or mortality at different doses. Immunohistochemical studies have also shown that c-Fos expression was significantly increased in hippocampus (dentate gyrus, CA1, CA3 and CA4) of PTZ-treated mice. Furthermore, c-Fos expression was significantly inhibited by ondansetron in mice treated with PTZ and SR 57227. An ELISA study showed that SR 57227 attenuated the PTZ-induced inhibitory effects of GABA levels in hippocampus and cortex, and the attenuated effects of SR 57227 were antagonized by ondansetron in hippocampus but not cortex. Our findings suggest that activation of 5-HT(3) receptor by SR 57227, which plays an important role on the control of seizure induced by PTZ, may be related to GABA activity in hippocampus. Therefore, 5-HT(3) receptor subtype is a potential target for the treatment of epilepsy.
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spelling pubmed-39721862014-04-04 The Anticonvulsant Effects of SR 57227 on Pentylenetetrazole-Induced Seizure in Mice Li, Bingjin Wang, Liang Sun, Zhihui Zhou, Yang Shao, Dongyuan Zhao, Jing Song, Yunong Lv, Jiayin Dong, Xue Liu, Changhong Wang, Pu Zhang, Xingyi Cui, Ranji PLoS One Research Article Recently, studies have shown that serotonin plays an important role in the control of seizure. However, the specific role of 5-HT receptor subtypes is not yet well described, in particular that of the 5-HT(3) receptor. The present study was aimed to investigate the role of 5-HT(3) receptor on the pentylenetetrazole (PTZ)-induced seizure in mice. Firstly, seizure latency was significantly prolonged by a 5-HT(3) receptor agonist SR 57227 in a dose-dependent manner. Seizure score and mortality were also decreased by SR 57227 in PTZ-treated mice. Furthermore, these anticonvulsant effects of SR 57227 were inhibited by a 5-HT(3) receptor antagonist ondansetron. However, ondansetron alone had no effect on seizure latency, seizure score or mortality at different doses. Immunohistochemical studies have also shown that c-Fos expression was significantly increased in hippocampus (dentate gyrus, CA1, CA3 and CA4) of PTZ-treated mice. Furthermore, c-Fos expression was significantly inhibited by ondansetron in mice treated with PTZ and SR 57227. An ELISA study showed that SR 57227 attenuated the PTZ-induced inhibitory effects of GABA levels in hippocampus and cortex, and the attenuated effects of SR 57227 were antagonized by ondansetron in hippocampus but not cortex. Our findings suggest that activation of 5-HT(3) receptor by SR 57227, which plays an important role on the control of seizure induced by PTZ, may be related to GABA activity in hippocampus. Therefore, 5-HT(3) receptor subtype is a potential target for the treatment of epilepsy. Public Library of Science 2014-04-01 /pmc/articles/PMC3972186/ /pubmed/24690630 http://dx.doi.org/10.1371/journal.pone.0093158 Text en © 2014 Li et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.
spellingShingle Research Article
Li, Bingjin
Wang, Liang
Sun, Zhihui
Zhou, Yang
Shao, Dongyuan
Zhao, Jing
Song, Yunong
Lv, Jiayin
Dong, Xue
Liu, Changhong
Wang, Pu
Zhang, Xingyi
Cui, Ranji
The Anticonvulsant Effects of SR 57227 on Pentylenetetrazole-Induced Seizure in Mice
title The Anticonvulsant Effects of SR 57227 on Pentylenetetrazole-Induced Seizure in Mice
title_full The Anticonvulsant Effects of SR 57227 on Pentylenetetrazole-Induced Seizure in Mice
title_fullStr The Anticonvulsant Effects of SR 57227 on Pentylenetetrazole-Induced Seizure in Mice
title_full_unstemmed The Anticonvulsant Effects of SR 57227 on Pentylenetetrazole-Induced Seizure in Mice
title_short The Anticonvulsant Effects of SR 57227 on Pentylenetetrazole-Induced Seizure in Mice
title_sort anticonvulsant effects of sr 57227 on pentylenetetrazole-induced seizure in mice
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3972186/
https://www.ncbi.nlm.nih.gov/pubmed/24690630
http://dx.doi.org/10.1371/journal.pone.0093158
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