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  • Title: Association of functional genetic variants of transcription factor Forkhead Box P3 and Nuclear Factor-κB with end-stage renal disease and renal allograft outcome.
    Author: Misra MK, Mishra A, Pandey SK, Kapoor R, Sharma RK, Agrawal S.
    Journal: Gene; 2016 Apr 25; 581(1):57-65. PubMed ID: 26794449.
    Abstract:
    BACKGROUND: The transcription factor FOXP3 and NF-κB regulates the expression of various genes that play an important role in the regulation of renal inflammation. We investigated the association of FOXP3 (rs2232365, rs3761548, rs5902434 and rs2294021) and NF-κB1 (rs28362491 and rs696) gene variants in susceptibility and prognosis of end stage renal disease (ESRD) and renal allograft outcome. METHODS: We genotyped four common polymorphisms of FOXP3 and two-tag SNPs of NF-κB1 genes in 350 ESRD cases and 350 controls. Single marker analysis and SNP-SNP interaction model (one to six way combinations) was used for determination of clinical outcome of ESRD and acute rejection episode (ARE). RESULTS: We observed significantly higher occurrence of mutant genotypes of tag-SNPs of FOXP3 namely; rs2232365 and rs3761548 along with NF-kB1 namely; rs28362491 and rs696 in ESRD and ARE cases, suggested a risk association for ESRD and ARE. Interestingly, multifactor dimension reduction analysis suggested an increased risks of nearly 6-folds for ESRD and 23-folds for ARE cases under the six factors model which consists of tag-SNPs of FOXP3 (rs2232365, rs3761548, rs5902434 and rs2294021) and NF-kB1 (rs28362491 and rs696). Kaplan-Meier survival analysis showed the lowest overall survival for mutant genotypes compared with wild and heterozygous genotypes of rs2232365 and rs3761548 tag SNPs of FOXP3 as well as NF-kB1 tag-SNPs rs28362491 and rs696 in renal allograft recipients. The crude and adjusted hazard ratios in univariate and multivariate Cox regression models showed almost 2-folds to 3-folds risk for overall survival against mutant genotypes of tag-SNPs of FOXP3 (rs2232365 and rs3761548) and NF-kB1 (rs28362491 and rs696) genes. CONCLUSIONS: These results suggest that variants of transcription factor FOXP3 and NF-kB1 might be associated with increased risk to the clinical outcome of ESRD and renal allograft survival.
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