Association of p53 codon 72 polymorphism with advanced lung cancer: the Arg allele is preferentially retained in tumours arising in Arg/Pro germline heterozygotes

The association of p53 codon 72 polymorphism with cancer has been investigated by several scientific groups with controversial results. In the present study, we examined the genotypic frequency of this polymorphism in 54 patients with advanced lung cancer and 99 normal controls from the geographical...

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Veröffentlicht in:British journal of cancer 2002-10, Vol.87 (9), p.1013-1018
Hauptverfasser: Papadakis, E D, Soulitzis, N, Spandidos, D A
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creator Papadakis, E D
Soulitzis, N
Spandidos, D A
description The association of p53 codon 72 polymorphism with cancer has been investigated by several scientific groups with controversial results. In the present study, we examined the genotypic frequency of this polymorphism in 54 patients with advanced lung cancer and 99 normal controls from the geographical region of Greece. Sputum and bronchial washing samples from each patient were assayed for the presence of human papillomavirus. Codon 72 heterozygous (Arg/Pro) patients were also analysed for loss of heterozygosity at the TP53 locus, in order to determine the lost p53 allele (Arg or Pro). p53 Arg/Arg genotype was significantly increased in lung cancer patients compared to normal controls (50% vs 24.2%, P
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In the present study, we examined the genotypic frequency of this polymorphism in 54 patients with advanced lung cancer and 99 normal controls from the geographical region of Greece. Sputum and bronchial washing samples from each patient were assayed for the presence of human papillomavirus. Codon 72 heterozygous (Arg/Pro) patients were also analysed for loss of heterozygosity at the TP53 locus, in order to determine the lost p53 allele (Arg or Pro). p53 Arg/Arg genotype was significantly increased in lung cancer patients compared to normal controls (50% vs 24.2%, P &lt;0.002). Human papillomavirus was detected only in two patients (3.7%). Loss of heterozygosity at the TP53 locus was found in 14 out of 27 Arg/Pro patients (51.85%). The Pro allele was lost in 11 cases (78.6%), while the Arg allele was lost in three (21.4%). Our results suggest that p53 codon 72 Arg homozygosity is associated with advanced lung cancer, and that the Arg allele is preferentially retained in patients heterozygous for this polymorphism. 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In the present study, we examined the genotypic frequency of this polymorphism in 54 patients with advanced lung cancer and 99 normal controls from the geographical region of Greece. Sputum and bronchial washing samples from each patient were assayed for the presence of human papillomavirus. Codon 72 heterozygous (Arg/Pro) patients were also analysed for loss of heterozygosity at the TP53 locus, in order to determine the lost p53 allele (Arg or Pro). p53 Arg/Arg genotype was significantly increased in lung cancer patients compared to normal controls (50% vs 24.2%, P &lt;0.002). Human papillomavirus was detected only in two patients (3.7%). Loss of heterozygosity at the TP53 locus was found in 14 out of 27 Arg/Pro patients (51.85%). The Pro allele was lost in 11 cases (78.6%), while the Arg allele was lost in three (21.4%). Our results suggest that p53 codon 72 Arg homozygosity is associated with advanced lung cancer, and that the Arg allele is preferentially retained in patients heterozygous for this polymorphism. On the other hand, human papillomavirus infection does not seem to play an important role in lung carcinogenesis.</description><subject>Aged</subject><subject>Arginine - genetics</subject><subject>Biological and medical sciences</subject><subject>Biomedical and Life Sciences</subject><subject>Biomedicine</subject><subject>Bronchoalveolar Lavage Fluid - virology</subject><subject>Cancer Research</subject><subject>Codon</subject><subject>DNA Primers - chemistry</subject><subject>Drug Resistance</subject><subject>Epidemiology</subject><subject>Female</subject><subject>Gene Deletion</subject><subject>Genes, p53</subject><subject>Genotype</subject><subject>Germ-Line Mutation</subject><subject>Heterozygote</subject><subject>Human papillomavirus</subject><subject>Humans</subject><subject>Loss of Heterozygosity</subject><subject>Lung Neoplasms - genetics</subject><subject>Lung Neoplasms - virology</subject><subject>Male</subject><subject>Medical sciences</subject><subject>Middle Aged</subject><subject>Molecular and Cellular Pathology</subject><subject>Molecular Medicine</subject><subject>Oncology</subject><subject>Papillomaviridae - isolation &amp; 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In the present study, we examined the genotypic frequency of this polymorphism in 54 patients with advanced lung cancer and 99 normal controls from the geographical region of Greece. Sputum and bronchial washing samples from each patient were assayed for the presence of human papillomavirus. Codon 72 heterozygous (Arg/Pro) patients were also analysed for loss of heterozygosity at the TP53 locus, in order to determine the lost p53 allele (Arg or Pro). p53 Arg/Arg genotype was significantly increased in lung cancer patients compared to normal controls (50% vs 24.2%, P &lt;0.002). Human papillomavirus was detected only in two patients (3.7%). Loss of heterozygosity at the TP53 locus was found in 14 out of 27 Arg/Pro patients (51.85%). The Pro allele was lost in 11 cases (78.6%), while the Arg allele was lost in three (21.4%). Our results suggest that p53 codon 72 Arg homozygosity is associated with advanced lung cancer, and that the Arg allele is preferentially retained in patients heterozygous for this polymorphism. On the other hand, human papillomavirus infection does not seem to play an important role in lung carcinogenesis.</abstract><cop>London</cop><pub>Nature Publishing Group UK</pub><pmid>12434294</pmid><doi>10.1038/sj.bjc.6600595</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record>
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subjects Aged
Arginine - genetics
Biological and medical sciences
Biomedical and Life Sciences
Biomedicine
Bronchoalveolar Lavage Fluid - virology
Cancer Research
Codon
DNA Primers - chemistry
Drug Resistance
Epidemiology
Female
Gene Deletion
Genes, p53
Genotype
Germ-Line Mutation
Heterozygote
Human papillomavirus
Humans
Loss of Heterozygosity
Lung Neoplasms - genetics
Lung Neoplasms - virology
Male
Medical sciences
Middle Aged
Molecular and Cellular Pathology
Molecular Medicine
Oncology
Papillomaviridae - isolation & purification
Papillomavirus Infections - diagnosis
Pneumology
Polymorphism, Genetic
Proline - genetics
Sputum - virology
Tumor Suppressor Protein p53 - genetics
Tumor Virus Infections - diagnosis
Tumors of the respiratory system and mediastinum
title Association of p53 codon 72 polymorphism with advanced lung cancer: the Arg allele is preferentially retained in tumours arising in Arg/Pro germline heterozygotes
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