OBJECTIVES: 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. METHODS: 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. RESULTS: 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. CONCLUSIONS: 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. Copyright 2009 S. Karger AG, Basel.
OBJECTIVES: 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. METHODS: 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. RESULTS: 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. CONCLUSIONS: 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. Copyright 2009 S. Karger AG, Basel.
Authors: Valeria Di Vuolo; Luigi Buonaguro; Francesco Izzo; Simona Losito; Gerardo Botti; Franco M Buonaguro; Maria Lina Tornesello Journal: Infect Agent Cancer Date: 2011-08-15 Impact factor: 2.965
Authors: P Chudasama; A Konrad; R Jochmann; B Lausen; P Holz; E Naschberger; F Neipel; N Britzen-Laurent; M Stürzl Journal: Oncogene Date: 2014-01-27 Impact factor: 9.867