rs3790567

This functional study investigated how SNPs rs3762315 (-1035A>G) and rs3762316 (-1023A>G) in the IL12RB2 gene promoter affect transcriptional activity through transcription factor binding. Using ELISA and reporter gene assays in T cells and NK cells, the researchers found that the -1023G allele creates an AP-1 binding site with enhanced binding affinity, while rs3762315 variants form differential binding sites for GATA-3 and MEF-2. These SNPs modulate IL12RB2 expression and may alter cell-mediated immune responses.

A case-control association study in 543 Chinese Han allergic rhinitis (AR) patients and 749 healthy controls examined four SNPs in IL-12 receptor genes. The homozygous GG genotype of rs438421 in IL-12Rβ1 was significantly increased in AR patients (OR=1.667, p=2.10×10^-5), while the heterozygous AG genotype was protective (OR=0.620, p=1.02×10^-4). No significant associations were found for the three IL-12Rβ2 SNPs (rs3790565, rs3790567, rs6679356) with AR.

This hybrid case-parent triad and case-control study examined associations between 76 tagSNPs in IL10 and IL12 cytokine pathway genes (IL10, IL12A, IL12B, IL10RA, IL10RB, IL12RB1, IL12RB2) and cervical/vulvar cancer risk. Key findings include: IL10RA rs9610 (OR=1.76, 95% CI 1.15–2.68) and rs4252314 (OR=2.23, 95% CI 1.26–3.96) associated with increased cervical cancer risk; IL12RB2 rs4297265 (OR=0.46) and rs2229546 (OR=0.43) associated with reduced cervical SCC risk; IL12B rs3181224 associated with reduced vulvar SCC risk (OR=0.30, 95% CI 0.12–0.74); and IL12RB1 rs11575934 (OR=1.51, 95% CI 1.12–2.05) associated with increased cervical adenocarcinoma risk.

This review article by Ota and Kuwana synthesizes genetic studies on systemic sclerosis (SSc), a complex autoimmune disease. Multiple genetic association studies, including GWAS and candidate gene approaches, have identified SSc susceptibility genes primarily involved in innate immunity (IRF4, IRF5, IRF7, IRF8, TNFAIP3), adaptive immune response (TNFSF4, CD247, PTPN22, CSK, STAT4, BLK), IL-12 signaling (IL-12A, IL-12RB1, IL-12RB2, TYK2), apoptosis/autophagy (ATG5, GSDMA, GSDMB, NOTCH4), and vascular homeostasis/fibrosis (PPARG). The review emphasizes that identified risk variants are predominantly located in non-coding regulatory regions and influence gene expression rather than protein structure.

This is a Turkish master's thesis investigating the relationship between the rs924080 variant in the IL23R-IL12RB2 intergenic region (previously identified as Behçet's disease-associated in GWAS studies, P<0.0001) and IL23R/IL12RB2 gene expression in healthy volunteers. The study examined 14 healthy subjects (6 heterozygous AG, 4 homozygous AA, 4 GG control for the risk A allele) and found that the rs924080 A risk allele significantly enhanced IL-23R stimulation responses and IL-6 cytokine production, suggesting a modulatory role in Th17 and IL-6 responses implicated in Behçet's disease pathogenesis.

This is a comprehensive review of genetic factors in systemic sclerosis (SSc), a complex autoimmune disease. The review synthesizes findings from candidate gene analysis and genome-wide association studies identifying numerous SNPs and genetic variants associated with SSc susceptibility, primarily in genes involved in innate immunity (IRF4, IRF5, IRF7, IRF8, TNFAIP3), adaptive immunity (TNFSF4, PTPN22, STAT4, BLK, PRDM1), and cell death pathways (ATG5, DNASE1L3, GSDMA/B, NOTCH4). HLA class II genes are associated with SSc-related autoantibodies rather than SSc itself, with DRB1 alleles carrying the FLEDR amino acid sequence critical for anti-topo I antibody responses.

This review updates knowledge on genetic factors in systemic sclerosis (SSc) susceptibility and disease expression. GWAS and candidate gene studies have identified multiple SSc-associated genetic variants primarily located in non-coding regions that influence gene expression through eQTL effects. Major risk genes include those involved in innate immunity (IRF4, IRF5, IRF7, IRF8, TNFAIP3), adaptive immune response (PTPN22, STAT4, TNFSF4, CD247), and cell death pathways (ATG5), while few genes directly involve fibrosis or vascular homeostasis. HLA class II genes associate with SSc-related autoantibodies rather than SSc itself. Multi-omics approaches are needed to characterize the complex molecular architecture and identify biomarkers.