Abstract
The changes in gene expression during senescence are very interesting. Early population doubling cDNA-1 (EPC-1, also known as pigment epithelial derived factor, PEDF) is one of the genes whose expression decreases dramatically during cellular aging. We examined whether or not EPC-1/PEDF promoter activity was affected by the cellular ageing using human diploid lung fibroblast cells in culture. Here we showed the promoter/enhancer region of EPC-1/PEDF existed at more than 1760 bp upstream from the transcriptional initiation site of the gene, and was regulated by both aging and cell cycle. These findings suggest that the expression of the EPC-1/PEDF gene is, at least in part, regulated transcriptionally in the cells. The analysis of the promoter region of the EPC-1/PEDF gene in this paper suggests the age- and cell cycle-dependent expression of specific transcriptional factor(s).
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Kojima, T., Nakahama, Ki., Yamamoto, K. et al. Age- and cell cycle-dependent changes in EPC-1/PEDF promoter activity in human diploid fibroblast-like (HDF) cells. Mol Cell Biochem 293, 63–69 (2006). https://doi.org/10.1007/s11010-006-2680-0
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DOI: https://doi.org/10.1007/s11010-006-2680-0