RRC ID 1611
Author Tabuchi Y, Toyama Y, Toshimori K, Komiyama M, Mori C, Kondo T.
Title Functional characterization of a conditionally immortalized mouse epididymis caput epithelial cell line MEPC5 using temperature-sensitive simian virus 40 large T-antigen.
Journal Biochem Biophys Res Commun
Abstract A conditionally immortalized epididymis caput cell line, MEPC5, was established by infecting primary cultured mouse epididymis caput cells with a temperature-sensitive simian virus 40 large T-antigen. At a permissive temperature of 33 degrees C, the large T-antigen was expressed and the cells grew continuously. However, the downregulation of T-antigen at a nonpermissive temperature of 39 degrees C and the upregulation of cell density at 33 degrees C were associated with growth arrest and the increased protein expression of p21(waf1), a cell cycle inhibitor. The cells expressed epididymal caput-expressed genes such as phosphatidylethanolamine binding protein, polyoma enhancer activator 3, ME1, sulfated glycoprotein-2 (SGP-2), androgen receptor, and retinoic acid receptor alpha. Interestingly, the expression levels of ME1 and SGP-2 were significantly elevated under the cell growth-restricted conditions. The established mouse epididymis caput epithelial cell line MEPC5 retains some characteristics of differentiated epididymis epithelial cells, and should prove an excellent model for studies of gene expression and the physiological functions of epididymis caput epithelial cells.
Volume 329(3)
Pages 812-23
Published 2005-4-15
DOI 10.1016/j.bbrc.2005.02.066
PII S0006-291X(05)00275-5
PMID 15752729
MeSH Animals Antigens, Viral, Tumor / genetics* Antigens, Viral, Tumor / metabolism* Cell Differentiation / physiology Cell Line Cell Proliferation Cell Size Epididymis / cytology* Epididymis / metabolism* Epithelial Cells / cytology* Epithelial Cells / metabolism* Gene Expression Regulation / physiology Male Mice Mice, Inbred C57BL Recombinant Proteins / metabolism Simian virus 40 / immunology* Temperature
IF 2.705
Times Cited 10
DNA material pSVtsA58 ori (-) (RDB01126)