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The apoptosis stimulating proteins of p53 (ASPP) family consists of three members, ASPP1, ASPP2 and iASPP. They bind to proteins that are key players in controlling apoptosis (p53, Bcl-2 and RelA/p65) and cell growth (APCL, PP1). So far, the best-known function of the ASPP family members is their ability to regulate the apoptotic function of p53 and its family members, p63 and p73. Biochemical and genetic evidence has shown that ASPP1 and ASPP2 activate, whereas iASPP inhibits, the apoptotic but not the cell-cycle arrest function of p53. The p53 tumour suppressor gene, one of the most frequently mutated genes in human cancer, is capable of suppressing tumour growth through its ability to induce apoptosis or cell-cycle arrest. Thus, the ASPP family of proteins helps to determine how cells choose to die and may therefore be a novel target for cancer therapy.

Original publication

DOI

10.1038/sj.bjc.6603525

Type

Journal article

Journal

Br J Cancer

Publication Date

29/01/2007

Volume

96

Pages

196 - 200

Keywords

Adaptor Proteins, Signal Transducing, Apoptosis Regulatory Proteins, Carrier Proteins, Codon, Disease Progression, Gene Expression Regulation, Neoplastic, Genes, Tumor Suppressor, Humans, Neoplasms, Oncogenes, Polymorphism, Genetic