title: p63, cellular senescence and tumor development.
abstract: Deficiency of p63, a p53-related protein, causes severe defects in epithelial morphogenesis. Studies of p63-compromised mouse models reveal that p63 deficiency induces cellular senescence both in cultured cells and in vivo, through regulation p19(Arf)/p53 and p16(Ink4a)/Rb pathways. An extensive tumor study of p63-compromised mice demonstrated that p63 deficiency does not predispose to, but rather protects from, tumor development. These findings further implicate p63 as a negative regulator of the tumor suppressive mechanism of cellular senescence.
authors.affiliation: Cold Spring Harbor Labratory, Cold Spring Harbor, New York 11724, USA.
authors.forename: Xuecui
authors.initials: X
authors.lastname: Guo
authors.forename: Alea A
authors.initials: AA
authors.lastname: Mills
mesh_terms: D000818:Animals; D016922:Cellular Senescence / Q000235:genetics / Q000502:physiology*; D004268:DNA-Binding Proteins / Q000235:genetics / Q000378:metabolism / Q000502:physiology*; D006801:Humans; D008954:Models, Biological; D009369:Neoplasms / Q000235:genetics / Q000473:pathology / Q000503:physiopathology*; D015534:Trans-Activators / Q000235:genetics / Q000378:metabolism / Q000502:physiology*; D014157:Transcription Factors; D025521:Tumor Suppressor Proteins / Q000235:genetics / Q000378:metabolism / Q000502:physiology*
chemical_list: D004268:DNA-Binding Proteins; C115051:TP63 protein, human; D015534:Trans-Activators; D014157:Transcription Factors; D025521:Tumor Suppressor Proteins