TP53 codon 72 polymorphism in classic, endemic and epidemic Kaposi's sarcoma in African and Caucasian patients

Oncology
Maria Lina TorneselloFranco M Buonaguro

Abstract

Several studies have examined the association of codon 72 polymorphism of the TP53 gene, encoding either arginine or proline, in several tumor types but none have investigated its role in Kaposi's sarcoma (KS) development. In this prevalent case-control study, 67 cutaneous lesions of classic, iatrogenic, endemic as well as epidemic KS from African (n = 22) and Caucasian (n = 45) patients, and blood samples from 150 healthy controls (n = 57 African, n = 93 Caucasian) have been analyzed for arginine and proline allele distribution. Among African cases the proline homozygous, heterozygous and arginine homozygous genotype frequencies were 50.0, 31.8 and 18.2%, respectively, and among controls 54.4, 40.3, and 5.3%, respectively (p = 0.1872). Conversely, among Caucasian cases genotype distributions were 6.7, 55.6, and 37.8%, and among controls 7.5, 34.4, and 58.1%, respectively (p = 0.0567). No significant differences in arginine and proline allele distribution were observed when the cases were stratified by HIV status/tumor type. The results obtained in this study suggest that p53 polymorphism at codon 72 does not represent a risk factor for the development of all forms of KS, either among African or among Caucasian populations.

Citations

Aug 17, 2011·Infectious Agents and Cancer·Valeria Di VuoloMaria Lina Tornesello
Jan 16, 2013·ISRN Oncology·Simon B ZeichnerEstelamari Rodriguez
Jan 23, 2014·Tumour Biology : the Journal of the International Society for Oncodevelopmental Biology and Medicine·Zhengqi Chang, Xiuchun Yu
Jun 4, 2011·Genetics and Molecular Biology·Yasuhito Ohsaka, Hoyoku Nishino
Dec 30, 2014·Pathology Oncology Research : POR·Rym AbderrahmaneNadhira Saidi-Mehtar
Oct 29, 2010·Biomarkers : Biochemical Indicators of Exposure, Response, and Susceptibility to Chemicals·Maria Lina TorneselloFranco M Buonaguro

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