A comparative molecular analysis of four rat smooth muscle cell lines

A comparative molecular analysis of four rat smooth muscle cell lines
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四种大鼠平滑肌细胞系的比较分子分析

DOI:
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发表时间:
1998
期刊:
In Vitro Cellular & Developmental Biology - Animal
影响因子:
--
通讯作者:
J. Miano
J. Miano
中科院分区:
--
文献类型:
--
作者:
A. Firulli;David K. M. Han;Louise Kelly;V. Koteliansky;S. Schwartz;E. Olson;J. Miano

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平滑肌细胞(SMC)分化的转录调控是一个快速增长的领域,与了解内膜疾病有关。尽管在体外积累了大量的数据,但是,没有研究比较了几种SMC培养系统之间的细胞特异性标志物谱、转染能力、启动子活性和生长特性。因此,我们进行了一个全面的分析标志物的配置文件,生长特性,可转染性,和SMC启动子活性在四个大鼠SMC线(A7 R5,成人和小狗主动脉,和PAC 1)。尽管染色体数目和结构发生改变,A7 r5、成人主动脉和PAC 1细胞表达所有研究的SMC标志物,包括SM α-肌动蛋白、SM钙调蛋白、SM 22、原弹性蛋白和较小程度的SM肌球蛋白重链(SMMHC)。相比之下,幼鼠主动脉细胞表达非常低或不可检测的水平的所有上述标志物,除了原弹性蛋白。成人主动脉,小狗,和PAC 1细胞显示相似的生长曲线和原癌基因转录水平,而那些在A7 R5线是相对less. All细胞系研究显示SMC分化基因的表达,除了小狗细胞在活跃的生长过程中,表明生长和分化不是相互排斥的培养平滑肌。转染研究揭示了细胞系之间DNA摄取和SMC限制性启动子活性的显著差异。总的来说,这些结果提供了有关SMC分子生物学在文化,应有利于选择一个细胞系研究SMC分化的转录调控机制的详细信息。
SummaryTranscriptional regulation of smooth muscle cell (SMC) differentiation is a rapidly growing area of interest that has relevance for understanding intimal disease. Despite the wealth of data accumulating in vitro, however, no study has compared the cell-specific marker profile, transfectability, promoter activity, and growth characteristics among several SMC culture systems. Accordingly, we performed a comprehensive analysis of the marker profile, growth properties, transfectability, and SMC promoter activity in four rat SMC lines (A7r5, adult and pup aortic, and PAC1). Despite alterations in chromosomal number and structure, A7r5, adult aortic, and PAC1 cells express all SMC markers studied including SM α-actin, SM calponin, SM22, tropoelastin, and to a lesser extent, SM myosin heavy chain (SMMHC). In contrast, pup aortic cells express very low or undetectable levels of all the above markers except tropoelastin. Adult aortic, pup, and PAC1 cells display similar growth curves and levels of proto-oncogene transcripts, whereas those in the A7r5 line are comparatively less. All cell lines studied except pup cells show expression of SMC differentiation genes during active growth, indicating that growth and differentiation are not mutually exclusive in cultured smooth muscle. Transfection studies reveal dramatic differences in DNA uptake and SMC-restricted promoter activity between cell lines. Collectively, these results provide detailed information relating to SMC molecular biology in culture that should facilitate the selection of a cell line for studying the transcriptional regulatory mechanisms underlying SMC differentiation.
DOI: 10.1152/physrev.1995.75.3.487
发表时间: 1995-07
影响因子: 33.6
作者:
G. Owens
通讯作者: G. Owens
DOI: --
发表时间: 1993-03
期刊: The American journal of pathology
影响因子: --
作者:
J. Miano;N. Vlasic;R. R. Tota-R.;Michael B. Stemerman
通讯作者: J. Miano;N. Vlasic;R. R. Tota-R.;Michael B. Stemerman
DOI: 10.1161/01.res.71.4.759
发表时间: 1992-10-01
影响因子: 20.1
作者:
MAJESKY, MW;GIACHELLI, CM;SCHWARTZ, SM
通讯作者: SCHWARTZ, SM
DOI: --
发表时间: 1990-10
期刊: The American journal of pathology
影响因子: --
作者:
Joseph M. Miano;R. R. Tota-R.;Niksa;Vlasic;Kenneth J. Danishefsky;Michael B. Stemerman
通讯作者: Joseph M. Miano;R. R. Tota-R.;Niksa;Vlasic;Kenneth J. Danishefsky;Michael B. Stemerman
原代人平滑肌细胞的永生化。
DOI: 10.1073/pnas.89.4.1224
发表时间: 1992
影响因子: 11.1
作者:
Perez-Reyes,N;Halbert,CL;Smith,PP;Benditt,EP;McDougall,JK
通讯作者: McDougall,JK