Association of Single Nucleotide Polymorphisms in IRF6 and TGFA Genes With Nonsyndromic Cleft Lip With Or Without Cleft Palate in Chinese Patients
Ya Shen
Yugui Cu
Weidong Wan
Xiaoping Zhou
Lu Cheng
Zuhong Lu
Jiayin Liu
摘要：Objective:Nonsyndromic cleft lip with or without cleft palate(NSCL/P) is a common birth defect with unclear etiology.Both genetic and environmental factors may contribute to NSCL/P.Many genes have been identified as candidate genes associated with this disease.Interferon regulatory factor6(IRF6) gene and transforming growth factor-a(TGFA) gene seem to be cmcial in the predisposition of NSCL/P.Here we evaluated some single nucleotide polymorphisms(SNPs) loci of TGFA and IRF6 genes in Chinese nuclear families consisting of fathers,mothers and affected offspring with NSCL/P.Methods:Fifty patients of NSCL/P were confirmed by the plastic surgeons.They and their parents were included in the study,all with the informed consents.SNPs loci of TGFA and IRF6 genes were analyzed by microarray technology.Some PCR products were randomly chosen and sequenced to check microarray results.The distribution of gene type and allele frequency between patient group and parents group were compared.Then a Haplotype Relative Risk(HRR) and Transmis-sion Disequilibrium Test(TDT) were performed.Results:The sequences of randomly selected PCR products were all consistent with the microarray results.All loci were in Hardy-Weinberg equilibrium.There were no significant differences in the distribution of genotypes and alleles between patients and their parents.Using HRR and TDT analyses the V2741 of IRF6 was associated with NSCL/P,while another SNP locus of IRF6 was not.Strong evidence of linkage disequilibrium was found between the2 SNP loci of TGFA and disease with the HRR analysis,but not with the TDT analysis.Conclusion:Our study confirms the contribution of IRF6 in the etiology of NSCL/P in populations of Asian ancestry.The association of TGFA with NSCL/P requires further research.
机标关键词：Chinese PatientsCleft PalateCleft LipTGFANSCL/PmicroarrayIRF6linkage disequilibrium
分类号：R5(内科学)
资助基金：the Medical Technology Development Foundation of Jiangsu Provincial Health Bureau of China(H200513)Changjiang Scholars and Innovative Research Team in University(IRT0631)国家重点基础研究发展规划(973计划)(2006CB944005)
论文发表日期：2009-01-01
在线出版日期：2025-08-15（本平台首次上网日期，不代表文献的发表时间）
页数：6( 40-45 )
英文信息