DIFFERENT BIOLOGICAL-ACTIVITIES IN CONDITIONED MEDIA CONTROL THE EXPRESSION OF A VARIETY OF NEUROPEPTIDES IN CULTURED SYMPATHETIC NEURONS

被引：96

作者：

NAWA, H

SAH, DWY

机构：

[1] HARVARD UNIV,SCH MED,DEPT NEUROBIOL,BOSTON,MA 02115

[2] CALTECH,DIV BIOL,PASADENA,CA 91125

来源：

NEURON | 1990年 / 4卷 / 02期

关键词：

D O I：

10.1016/0896-6273(90)90102-L

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

An intriguing question regarding neuronal development is how neurons choose which neurotransmitter and/or peptide to express among over 40 candidates. We find that heart cell conditioned medium (CM) induces a number of neuropeptides and/or their precursor mRNAs, as well as acetylcholine, in cultured rat sympathetic neurons: substance P, somatostatin, vasoactive intestinal polypeptide, enkephalin derivatives, and cholecystokinin, but not neuropeptide Y. Different patterns of peptide induction were observed for CMs from primary cultures of heart, gut, and skin. Acetylcholine and substance P were induced most effectively by serum-free heart cell CM; enkephalin derivatives were induced most effectively by skin cell CM; and somatostatin and vasoactive intestinal polypeptide were induced equally well by all of the CMs. These observations suggest the possibility that many distinct, diffusible factors can influence the choice of transmitter and/or peptide phenotype in developing neurons. © 1990.

引用

页码：279 / 287

页数：9

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