| Literature DB >> 2405860 |
K Matsumoto1, K Hashimoto, Y Nishida, M Hashiro, K Yoshikawa.
Abstract
The effect of 1,25-dihydroxyvitamin D3 [1,25(OH)2D3] on the growth of normal human keratinocytes cultured in serum-free medium was investigated. 1,25(OH)2D3 inhibited the cell growth at 10(-7) M by 75.3% and at 10(-6) M almost completely. The growth inhibition was accompanied by changes related to proliferation: (1) remarkable inhibition of DNA synthesis, (2) the decrease in the number of high-affinity receptors for epidermal growth factor, with almost no change in total receptor number, (3) the rapid decrease in c-myc mRNA level. The inhibition of DNA synthesis and the decrease of c-myc mRNA expression occurred at 3 h after the addition of 1,25(OH)2D3. These results suggest that decrease of c-myc mRNA expression is one of the primary effects of 1,25(OH)2D3 in the growth inhibition of human keratinocytes.Entities:
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Year: 1990 PMID: 2405860 DOI: 10.1016/0006-291x(90)90898-w
Source DB: PubMed Journal: Biochem Biophys Res Commun ISSN: 0006-291X Impact factor: 3.575