Journal
JOURNAL OF CLINICAL LABORATORY ANALYSIS
Volume 19, Issue 3, Pages 93-98Publisher
WILEY
DOI: 10.1002/jcla.20060
Keywords
IL-1 gene polymorphism; IL4 gene polymorphism; oral cancer
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We aimed to evaluate whether polymorphisms of the interleukin-4 (IL-4) gene promoter and intron 3 regions, and polymorphisms of the IL-1 beta gene promoter and exon 5 regions are associated with oral cancer. This study included 130 patients with oral cancer and 105 age-matched healthy controls who lived in the same area as the patients. Each genetic polymorphism was typed by polymerase chain reaction (PCR)-based restriction analysis. We then compared the genotype distribution and allelic frequencies of each polymorphism between the oral cancer patients and the controls. The CC homozygote genotype of the IL-4 gene promoter -590 region differed significantly between the patients with oral cancer and the controls (odds ratio (OR)=6.0, 95% confidence interval (CI)=1.2-30.7, chi-square test, P=0.044). No significant difference in either the genotype distribution or the allelic frequencies of the IL-1 beta gene polymorphisms was observed between patients with oral cancer and controls. The IL-4 gene -590 C/T polymorphism is associated with oral cancer and is a suitable genetic marker for screening for oral cancer. However, whether the -590 C/T polymorphism of the IL4 gene plays a role in oral cancer remains unclear. Further substantiation based on larger patient samples is needed. (c) 2005 Wiley-Liss, Inc.
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