ArticleGenes and environment : the official journal of the Japanese Environmental Mutagen Society2023
Detection of EGFR gene polymorphisms in non-small cell lung cancer Egyptian patients: a case-control study.
Article in Genes and environment : the official journal of the Japanese Environmental Mutagen Society, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundNon-Small Cell Lung Cancer displays several genetic mutations including epidermal growth factor receptor. This study's objective was to determine if the EGFR exon19 rs121913438 and exon21 rs121434568 variations play a role in NSCLC susceptibility.
methodsCase-control research was done at the Mansoura university oncology center including 124 NSCLC patients, and 124 healthy volunteers. blood was used to obtain genomic DNA. ARMS-PCR was used to genotype single-nucleotide polymorphisms.
resultsMolecular study for EGFR exon 19 del. showed NSCLC cases were significantly associated with a higher proportion of heterozygous WD, WD + DD dominant genotypes, and mutant D allele, (p < 0.05 for each), with a risk to develop NSCLC. also, NSCLC cases were significantly associated with a higher proportion of heterozygous TG, TG + GG dominant genotype, G mutant allele, (p < 0.05 for each), with a risk to develop LC (OR > 1 for each). regarding the two EGFR mutations, TTF1 staining was significantly associated with WD + DD genotypes for EGFR exon 19 del But not EGFR exon 21. No substantial differences were found among all studied cases with CK7 or napsin A Tumor cytochemistry.
conclusionsThe WD heterozygous genotype and D allele in exon 19 del. mutation as well as the TG heterozygous and G allele in exon 21 substitution mutation in EGFR gene are strongly associated with the development of advanced-NSCLC in the Egyptians.
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