ArticleAsian Pacific journal of cancer prevention : APJCP2025
Association of Tumor Suppressor TP53 and TP21 Gene Polymoprhisms with Radiotherapy Induced Adverse Reactions in Head and Neck Cancer Patients.
Article in Asian Pacific journal of cancer prevention : APJCP, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Abstract
backgroundThe current study was intended to analyze the genotype distribution of the tumor suppressor genes TP53 and TP21, and to investigate their potential association with acute radiotherapy -induced toxicities, such as skin reactions and mucositis, in normal tissues of head and neck cancer (HNC) patients receiving radiotherapy. MATERIALS &
methodsTwo hundred and fifty HNC patients undergoing radiotherapy were enrolled in this study and the acute toxicity reactions and radiotherapy response were recorded. The potential association of two single nucleotide polymorphisms (SNPs) (rs1042522, rs28934571) of TP53 gene and (rs1801270, rs1059234) SNPs of TP21 gene, with the risk of acute skin toxicity reactions was analyzed using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) and direct DNA sequencing methods.
resultsThe findings revealed that the homozygous recessive (C/C) genotype of the 72G>C polymorphism in the TP53 gene exhibited a significantly increased association with acute skin toxicity in (HNC) patients undergoing radiotherapy (OR = 4.32, 95% CI: 1.87-10.01; p = 0.0006, and the heterozygous (G/C) genotype of the same polymorphism demonstrated a robust correlation with acute skin reactions (OR = 9.23, 95% CI: 4.40-19.23; p < 0.0001). The heterozygous variant (G/C) genotype of TP53 was identified as a significant risk factor for oral mucositis exceeding grade 2 severity in HNC patients receiving radiotherapy, with an odds ratio of 4.15 (95% CI: 2.21-7.76; p < 0.0001).
conclusionThe results of genetic polymorphisms of TP53 and TP21 genes and their association with radiotherapy induced acute toxicities demonstrated significant association of TP53, G72C polymorphism of rs1042522 SNP with both acute radiotherapy induced dermatitis and mucositis.
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