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Pancreatic Insufficiency in Cystic Fibrosis: Influence of Inflammatory Response Genes
Objective:
Pancreatic insufficiency (PI) in cystic fibrosis (CF) patients is a crucial clinical marker for severity and disease progression. In our study, 125 modifier genes and their SNPs were associated between CF patients with PI or pancreatic sufficiency.
Methods:
We prospectively evaluated 214 CF patients admitted at 1 hospital for a 2-year period. The PI status was associated with clinical variables and SNPs related with inflammatory response considering CFTR mutations. Open Array technique was used to perform the SNPs identification.
Results:
For PI risk, after correction by multiple test, in CF patients and 2 CFTR mutations class I, II, and/or III, there were 6 SNPs with positive association (P < 0.005). The odds ratio amplitude was 0.087 (95% confidence interval [CI], 0.004-0.544) for rs9870255*CG (CTNNB1 gene) to 11.06 (95% CI, 1.746-252.3) for rs729302*AA (IRF5 gene). For all CF patients at the same time, 9 SNPs showed positive association. The odds ratio amplitude was 0.144 (95% CI, 0.028-0.602) for rs2348071*AA (PSMA3 gene) to 5.809 (95% CI, 1.536-37.54) for rs11702779*AA (RUNX1 gene). In our data, we observed the interaction between CFTR mutations, rs9870255*CTNNB1, rs9378805*IRF4, and rs7664617*KCNIP4 to PI status.
Conclusions:
Multiple SNPs in inflammatory response genes showed association with PI considering the CFTR mutations screening.
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