The rearrangement of filamentous actin in mossy fiber synapses in pentylenetetrazol-kindled C57BL/6 mice.

Abstract:

:Chemical kindling, as an experimental model of epileptogenesis, is induced by repetitive administration of subconvulsive amount of excitatory drugs. Kindled mice do not typically display spontaneous recurrent seizures, but are instead characterized by enhanced seizure susceptibility to convulsive stimulations. In order to provide insights into the aberrant synaptic plasticity during kindling, this study investigated the effect of pentylenetetrazol (PTZ) kindling on filamentous actin (F-actin) in mossy fiber synapses in C57BL/6 mice. Phalloidin labeling of F-actin showed that F-actin puncta were increased in number in the stratum lucidum of CA3 region in the hippocampus after kindling. The rearrangement of F-actin seemed to occur presynaptically, since synapsin I, a specific marker for mossy fiber terminals, was also up-regulated. Such subtle structural modifications occurring in the synapses are thought to contribute to the long-lasting increased sensitivity in the PTZ-kindled C57BL/6 mice.

journal_name

Epilepsy Res

journal_title

Epilepsy research

authors

Zhang YF,Li SL,Xiong TQ,Yang LB,Li YN,Tan BH,Liu Q,Li YC

doi

10.1016/j.eplepsyres.2013.10.019

subject

Has Abstract

pub_date

2014-01-01 00:00:00

pages

20-8

issue

1

eissn

0920-1211

issn

1872-6844

pii

S0920-1211(13)00285-4

journal_volume

108

pub_type

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