Abstract
The influence of topical PUVA on the activity of ornithine decarboxylase (ODC) and its gene expression was investigated in the skin of hairless mouse. After 1 h of application of 0.3% 8-methoxypsoralen, irradiation of 3 J/cm2 of ultraviolet A (UV-A) was administered. The ODC activity markedly increased and peaked at 24 h following UV-A irradiation. The ODC raRNA level analyzed in dot-blot analysis elevated to about 5 times that of control at 24 h after treatment. These results show that the PUVA-induced ODC activity is due in part to an increase in ODC gene expression.
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© 1999 S. Karger AG, Basel
1990
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