当前位置： SCI文献检索 > JOURNAL OF PHARMACOLOGICAL AND TOXICOLOGICAL METHODS期刊下所有文献 > Effects of passage number on proliferation and store-operated calcium entry in A7r5 vascular smooth muscle cells.

Effects of passage number on proliferation and store-operated calcium entry in A7r5 vascular smooth muscle cells.

Abstract：

INTRODUCTION:Embryonic rat aortic smooth muscle cells, A7r5, have been used extensively as an in vitro vascular smooth muscle cell model. They are usually provided at 11th passage by supplier and generally used before 25th passage. However, the exact passage number (P#) used is not reported in general. METHODS:In this study, A7r5 cells (P#<18 and P#>23) were used in quantitative gene (5-HT2A and SERCA2b) expression as well as in functional analyses including measurements of real-time changes in cell proliferation and in 5-HT- and CPA-induced intracellular Ca(2+) levels. RESULTS:CPA-induced SR Ca(2+) release and store-operated Ca(2+) entry significantly increased (p<.05) while cell proliferation decreased in P#>23 cells (p<.01). Furthermore, 5-HT-induced Ca(2+) elevations and 5-HT2A mRNA levels did not change whereas SERCA2b mRNA levels and CPA-induced [Ca(2+)]i levels were significantly elevated in P#>23 cells (p<.05, p<.01, respectively). DISCUSSION:Changes in SERCA2b expression and SOCE may contribute to suppression of cell proliferation during A7r5 subculturing. Therefore, passage numbers and subculturing procedure should be reported and taken into account during expressional and functional analyses for an accurate comparison of published data.

journal_name

J Pharmacol Toxicol Methods

journal_title

Journal of pharmacological and toxicological methods

authors

Erac Y,Selli C,Filik P,Tosun M

doi

10.1016/j.vascn.2014.03.001

subject

Has Abstract

pub_date

2014-07-01 00:00:00

pages

1-5

issue

1

eissn

1056-8719

issn

1873-488X

pii

S1056-8719(14)00027-6

journal_volume

70

pub_type

杂志文章

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