RATIONALE: Stimulation of interleukin-22 receptor alpha-1 (IL22RA1) was reported to increase the innate immune responses in inflammatory diseases. Moreover, a reduced level of IL22RA1 was found in patients with recalcitrant CRS with nasal polyps. OBJECTIVE: To explore association between single nucleotide polymorphisms (SNPs) in IL22RA1 and severe CRS. METHODS: We extracted DNA from 206 cases with severe CRS and 196 postal code-matched controls. Twenty-three SNPs in the IL22RA1 gene were selected from the pooling-based genome-wide association study and from the CEU HapMap dataset and genotyped. PLINK software was used to determine association. RESULTS: After Bonferroni correction, three SNPs (rs4292900 P(nom) = 0.0006, OR = 1.757; rs4648936 P(nom) = 0.0011, OR = 1.716; rs16829225 P(nom) = 0.0014, OR = 1.977) show significant differences in allelic frequencies between cases and controls. CONCLUSION: Polymorphisms in IL22RA1 are associated with severe CRS. Replication and functional studies are involved to better understand the mechanism by which these polymorphisms contribute to the pathogenesis of CRS.
RATIONALE: Stimulation of interleukin-22 receptor alpha-1 (IL22RA1) was reported to increase the innate immune responses in inflammatory diseases. Moreover, a reduced level of IL22RA1 was found in patients with recalcitrant CRS with nasal polyps. OBJECTIVE: To explore association between single nucleotide polymorphisms (SNPs) in IL22RA1 and severe CRS. METHODS: We extracted DNA from 206 cases with severe CRS and 196 postal code-matched controls. Twenty-three SNPs in the IL22RA1 gene were selected from the pooling-based genome-wide association study and from the CEU HapMap dataset and genotyped. PLINK software was used to determine association. RESULTS: After Bonferroni correction, three SNPs (rs4292900 P(nom) = 0.0006, OR = 1.757; rs4648936 P(nom) = 0.0011, OR = 1.716; rs16829225 P(nom) = 0.0014, OR = 1.977) show significant differences in allelic frequencies between cases and controls. CONCLUSION: Polymorphisms in IL22RA1 are associated with severe CRS. Replication and functional studies are involved to better understand the mechanism by which these polymorphisms contribute to the pathogenesis of CRS.
Authors: Joy Hsu; Pedro C Avila; Robert C Kern; M Geoffrey Hayes; Robert P Schleimer; Jayant M Pinto Journal: J Allergy Clin Immunol Date: 2013-04 Impact factor: 10.793
Authors: Kara Y Detwiller; Timothy L Smith; Jeremiah A Alt; Dennis R Trune; Jess C Mace; Nathan B Sautter Journal: Am J Rhinol Allergy Date: 2014 Sep-Oct Impact factor: 2.467