当前位置： SCI文献检索 > EXPERIMENTAL CELL RESEARCH期刊下所有文献 > Serum and serotonin induce retraction of calf aortic smooth muscle (CASM) cells in vitro: inhibition by ketanserin, a 5-HT2 receptor antagonist.

Serum and serotonin induce retraction of calf aortic smooth muscle (CASM) cells in vitro: inhibition by ketanserin, a 5-HT2 receptor antagonist.

Abstract：

:Calf aortic smooth muscle (CASM) cells cultured in vitro at high cell density (4 x 10(4) cells/cm2) on bacteriological petri dishes in the presence of serum pile up in clusters and create open spaces in the monolayer. This phenomenon is clearly visible 6 days after plating and is markedly enhanced by the addition of fetal calf serum. Serotonin is essential for the serum-induced retraction since (1) dialyzed serum has no effect, (2) of all the vasoactive agents we tested, only serotonin induced a similar degree of retraction, and (3) the serum-induced retraction was completely blocked by preincubating the cells with serotonin 5-HT2 receptor blockers such as ketanserin and ritanserin but not by preincubation with adrenergic-alpha 1 blockers or histamine antagonists. Serotonin caused CASM cell retraction in a dose-dependent way, with a maximum effect at 10(-6) M. The serotonin-induced retraction was reversible in time and was effectively blocked by ketanserin (IC50 = 1.2 x 10(-9) M). It is therefore concluded that serotonin induces retraction of CASM cells, mediated by the serotonin 5-HT2 receptor.

journal_name

Exp Cell Res

journal_title

Experimental cell research

authors

De Wever B,Rooman RP,De Brabander M

doi

10.1016/0014-4827(90)90216-w

subject

Has Abstract

pub_date

1990-01-01 00:00:00

pages

109-14

issue

1

eissn

0014-4827

issn

1090-2422

pii

0014-4827(90)90216-W

journal_volume

186

pub_type

杂志文章

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