Circadian and photic regulation of ERK, JNK and p38 in the hamster SCN

被引:52
作者
Pizzio, GA
Hainich, EC
Ferreyra, GA
Coso, OA
Golombek, DA
机构
[1] Univ Nacl Quilmes, Dept Ciencia & Tecnol, Bernal, Buenos Aires, Argentina
[2] Univ Buenos Aires, LFyBM, Buenos Aires, DF, Argentina
关键词
circadian; ERK; JNK; MAP kinase; p38; suprachiasmatic;
D O I
10.1097/00001756-200308060-00002
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Circadian rhythms are entrained by light-activated signal transduction pathways in the biological clock. Among these, circadian and photic control of mouse suprachiasmatic ERK MAP kinase activation has been reported. In this paper we extend these results to hamsters and to the two other major members of the MAPK family: JNK and p38. The three kinases are rhythmically phosphorylated under light-dark and constant conditions, with maximal values during the day or subjective day. Light pulses during the subjective night induce rapid activation of the three enzymes, suggesting that the three MAP kinases might be implicated in mammalian photic entrainment.
引用
收藏
页码:1417 / 1419
页数:3
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