p63 in epithelial development

Cell Mol Life Sci. 2008 Oct;65(20):3126-33. doi: 10.1007/s00018-008-8119-x.


The epidermis, the outer layer of the skin composed of keratinocytes, is a stratified epithelium that functions as a barrier to protect the organism from dehydration and external insults. The epidermis develops following the action of the transcription factor p63, amember of the p53 family of transcription factors. The Trp63 gene contains two promoters driving the production of distinct proteins, one with an N-terminal transactivation domain (TAp63) and one without (DeltaNp63), although their relative contribution to epidermal development is not clearly established. Trp63 mutations are involved in the pathogenesis of several human diseases, phenotypically characterized by ectodermal dysplasia. In this review, we summarize the current advances that have been made in understanding the role of p63 in epidermal morphogenesis.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Animals
  • Cell Differentiation
  • Epithelium / growth & development*
  • Epithelium / metabolism*
  • Humans
  • Keratinocytes / cytology
  • Keratinocytes / metabolism
  • Protein Isoforms / chemistry
  • Protein Isoforms / genetics
  • Protein Isoforms / metabolism
  • Transcription, Genetic
  • Tumor Suppressor Proteins / chemistry
  • Tumor Suppressor Proteins / genetics
  • Tumor Suppressor Proteins / metabolism*


  • Protein Isoforms
  • Tumor Suppressor Proteins