Time course of let-7a expression in the cell cycle of human cervical carcinoma HeLa cells / 南方医科大学学报
Journal of Southern Medical University
; (12): 442-445, 2009.
Article
in Zh
| WPRIM
| ID: wpr-233768
Responsible library:
WPRO
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the time course of let-7a microRNA expression in the cell cycle of HeLa cells.</p><p><b>METHODS</b>HeLa cells were synchronized in G(1), S and G(2)/M phases using double-thymidine block, and the cell cycle phases were defined by flow cytometry. Real-time quantitative RT-PCR was used to examine the expression of let-7a in HeLa cells in different cell cycle phases.</p><p><b>RESULTS</b>The synchronization rates of G(1), S and G(2)/M phases were 84.81%, 83.65% and 77.69%, respectively. Let-7a was constitutively expressed throughout the cell cycle in HeLa cells, but the expression levels in G(1) and S phases were lower than those in G(2)/M phase.</p><p><b>CONCLUSIONS</b>Cell cycle can significantly influence the expression level of let-7a, which may provide new clues to the understanding of the cell cycle control mechanisms.</p>
Full text:
1
Database:
WPRIM
Main subject:
Physiology
/
HeLa Cells
/
Gene Expression Regulation, Neoplastic
/
Cell Cycle
/
MicroRNAs
/
Genetics
/
Metabolism
Limits:
Humans
Language:
Zh
Journal:
Journal of Southern Medical University
Year:
2009
Type:
Article