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Pure Appl. Chem. Vol. 72, No. 6, pp. 995-999, 2000

p53 mutations as fingerprints of environmental carcinogens*

Rengul Cetin-Atalay** and Mehmet Ozturk

Bilkent University, Department of Molecular Biology and Genetics 06533 Bilkent, Ankara, Turkey

Abstract: Mutations of the p53 tumor suppressor gene occur in a great majority of human cancers. The protein product of p53 gene is involved in DNA damage response. Consequently, p53 gene may be a preferred target for environmental carcinogens, which also act as DNA-damaging agents. This is probably why p53 mutations are frequent in cancers linked to environmental carcinogens. Moreover, these carcinogens leave molecular fingerprints on the p53 gene. Thus, the study of p53 mutation spectra has been a useful approach to implicate suspected carcinogens to different human cancers. This review provides further insight into the significance of p53 mutation spectra in ten common human malignancies (skin, liver, lung, bladder, breast, head and neck, esophagus, stomach and colorectal cancers, and hematological malignancies), in relation with environmental carcinogens.

*Lectures presented at the 4th Congress of Toxicology in Developing Countries (4th CTOX-DC), Antalya, Turkey, 6-10 November 1999
**Corresponding author

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