analysis of function about keratinocyte differentiation of p51/p63, homologue of tumor suppressor gene p53

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I found that p63 was related to the mechanism of keratin 1 expression in keratinocyte differentiation. p63 induces keratin 1 via JNK/AP-1 activation. I explained keratinocyte growth factor, from dermal fibroblast, suppressed keratin 1 expression via ERK signaling.I examined the relationship between p63 and sonic hedgehog. I overexpressed p63 in keratinocyte and showed the promoter activity of sonic hedgehog increased. In vivo, I showed that p63 expressed strongly in basal cell carcinoma by immunostaining method.