Open AccessAltered PLCβ-1 expression in the gerbil hippocampal complex following spontaneous seizure
Author(s) -
Saet-Byeol Lee,
Yuna Oh,
Jun Chul Chung,
Ji-Heon Jeong,
Sang-Duk Lee,
Dae-Kyoon Park,
Kyungho Park,
Jeong-Sik Ko,
DukSoo Kim
Publication year - 2011
Publication title -
bmb reports
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.511
H-Index - 77
eISSN - 1976-670X
pISSN - 1976-6696
DOI - 10.5483/bmbrep.2011.44.9.566
Subject(s) - gerbil , hippocampus , hippocampal formation , epilepsy , ictal , endocrinology , dentate gyrus , medicine , neuroscience , biology , ischemia
Although the phospholipase C (PLC)β-1 isoform is associated with spontaneous seizure and distinctively expressed in the telencephalon, the distribution of PLCβ-1 expression in the epileptic gerbil hippocampus remains controversial. Therefore, we determined whether PLCβ-1 is associated with spontaneous seizure in an animal model of genetic epilepsy. In the present study, PLCβ-1 immunoreactivity was down-regulated in seizure-sensitive (SS) gerbils more than in seizure-resistant (SR) gerbils. The expression of PLCβ-1 within calretinin (CR)- positive neurons was rarely detected within the dentate hilar region of SS gerbils. PLCβ-1 immunoreactivity in the hippocampus was significantly elevated as compared to that in pre-seizure SS gerbil 3 h post-ictal. These findings suggest that alterations in PLCβ-1 immunoreactivity in the SS gerbil hippocampus may be closely related to the epileptic state of the gerbil brain and transiently elevated PLCβ-1 protein levels following seizure episodes. Such alterations may be compensatory responses in the SS gerbil hippocampus.