Increase in activin beta A mRNA in rat hippocampus during long-term potentiation

被引:79
作者
Inokuchi, K [1 ]
Kato, A [1 ]
Hiraia, K [1 ]
Hishinuma, F [1 ]
Inoue, M [1 ]
Ozawa, F [1 ]
机构
[1] AZABU UNIV,DEPT PHYSIOL 2,SAGAMIHARA,KANAGAWA 229,JAPAN
关键词
mRNA differential display; long-term potentiation; seizure; TGF-beta superfamily; activin; synaptic plasticity;
D O I
10.1016/0014-5793(96)00135-4
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
We have used mRNA differential display to isolate genes that are induced by neural activity in rat hippocampus. One of these encodes activin beta A subunit. Convulsive seizure caused by kainate significantly induced the expression of activin beta A mRNA, Furthermore high frequency stimulation (HFS) of perforant pathway, which produced a persistent long-term potentiation (LTP) (>10 h), caused a marked increase at 3 h in the level of activin beta A mRNA at the dentate gyrus of urethane-anesthetized rat, The increase was NMDA receptor-dependent. By contrast the level of inhibin alpha mRNA was not changed following the induction of LTP. The results suggest a role for activin in maintenance of neural plasticity in the adult brain.
引用
收藏
页码:48 / 52
页数:5
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