Mutation of the p53 gene is found in about one third of astrocytic brain tumors, and expansion of tumor cell clones containing mutant p53 has been implicated in astrocytic tumor progression. However, admixture of normal cells in astrocytic tumor specimens limits the power of traditional studies of t
p53 Website and analysis of p53 gene mutations in human cancer: Forging a link between epidemiology and carcinogenesis
✍ Scribed by Thierry Soussi; Karim Dehouche; Christophe Béroud
- Publisher
- John Wiley and Sons
- Year
- 2000
- Tongue
- English
- Weight
- 331 KB
- Volume
- 15
- Category
- Article
- ISSN
- 1059-7794
No coin nor oath required. For personal study only.
✦ Synopsis
The p53 tumor suppressor gene has proven to be one of the genes most often mutated in human cancers. It involves mainly point mutations leading to amino acid substitutions in the central region of the protein which impairs normal functions. Analysis of the mutational events that target the p53 gene has revealed evidence for both exogenous and endogenous mutational mechanisms. For example, the p53 mutational spectrum reveals evidence for a direct causal effect of ultraviolet radiation in skin cancer, of aflatoxin B1 in liver cancer, and of tobacco smoke in lung cancer. This novel field, molecular epidemiology of human cancer risk, has added a new dimension to classical associative epidemiology by providing a direct link between human cancer and carcinogen exposure. For such analysis, we devised a generic software called UMD (Universal Mutation Database). It was developed as a generic software to create locus-specific databases (LSDBs) with the 4 th Dimension® package from ACI. This software includes an optimized structure to assist and secure data entry and to allow the input of various clinical data.
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