The effect of telomerase reverse transcriptase on 5-HT induced pulmonary artery smooth muscle cells proliferation

To investigate the effect of telomerase reverse transcriptase (TERT) to the proliferation of 5-HT induced pulmonary artery smooth muscle cells (PASMCs). The PASMCs proliferation experiment was performed to detect the effort on PASMCs of 5-HT or ASODN TERT (antisense oligoribonucleotides TERT designe...

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Published inZhōnghuá xīnxuèguănbìng zázhì Vol. 34; no. 9; p. 837
Main Authors Song, Jing-chun, Li, Zhi-chao, Huang, Guo-ming, Qiao, Huai-yu, Tu, Xiao-wen
Format Journal Article
LanguageChinese
Published China 01.09.2006
Subjects
Animals
Cell Proliferation
Cells, Cultured
Muscle, Smooth, Vascular - cytology
Myocytes, Smooth Muscle - cytology
Pulmonary Artery - cytology
Rats
RNA Replicase
RNA, Messenger - genetics
Serotonin - pharmacology
Telomerase - pharmacology
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Summary:To investigate the effect of telomerase reverse transcriptase (TERT) to the proliferation of 5-HT induced pulmonary artery smooth muscle cells (PASMCs). The PASMCs proliferation experiment was performed to detect the effort on PASMCs of 5-HT or ASODN TERT (antisense oligoribonucleotides TERT designed according to the rat TERT mRNA sequence of gene bank). The immunohistochemistry staining experiment and the in situ hybridization experiment were to detect the TERT protein and mRNA expression with 5-HT or ASODN TERT. FITC marked ASODN TERT experiment was done to research the distribution of ASODN TERT in PASMCs. 5-HT promoted PASMCs proliferation in a dose-dependent manner (10(-9) - 10(-5) mol/L). 5-HT also significantly increased TERT expression at protein and mRNA levels as shown by immunohistochemistry staining and the in situ hybridization studies. This effect could be blocked by ASODN TERT in a time and dose-dependent manner. Our experiments show TERT is one of the key factors in the procession of 5-HT indu
ISSN:0253-3758