Mouse 5-HT2B receptor-mediated serotonin trophic functions

被引:24
作者
Choi, DS
Kellermann, O
Richard, S
Colas, JF
Bolaños-Jimenez, F
Tournois, C
Launay, JM
Maroteaux, L
机构
[1] Univ Strasbourg 1, Inst Genet & Biol Mol & Cellulaire, CNRS, INSERM, F-67404 Illkirch Graffenstaden, France
[2] Inst Pasteur, F-75724 Paris 15, France
[3] Hop Lariboisiere, Serv Biochim, F-75475 Paris 10, France
来源
ADVANCES IN SEROTONIN RECEPTOR RESEARCH: MOLECULAR BIOLOGY, SIGNAL TRANSDUCTION, AND THERAPEUTICS | 1998年 / 861卷
关键词
D O I
10.1111/j.1749-6632.1998.tb10174.x
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
5-HT2B receptors, in addition to phospholipase C stimulation, are able to trigger activation of the proto-oncogene product p21(ras). During mouse embryogenesis, a peak of 5-HT2B receptor expression is detected at the neurulation stage; we localized the 5-HT2B expression in neural crest cells, heart myocardium, and somites, The requirement for functional 5-HT2B receptors shortly after gastrulation, is supported by culture of embryos exposed to 5-HT2B-high affinity antagonist such as ritanserin, which induces morphological defects in the cephalic region, heart and neural tube. Functional 5-HT2B receptors are also expressed during the serotonergic differentiation of the mouse F9 teratocarcinoma-derived clonal cell line 1C11. Upon 2 days of induction by cAMP, 5-HT2B receptors become functional, and on day 4, the appearance of 5-HT2A receptors coincides with the onset of active serotonin transporter by these cells. Active serotonin uptake is modulated by serotonin suggesting autoreceptor functions for 5-HT2B receptors.
引用
收藏
页码:67 / 73
页数:7
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