PMID- 33643312 OWN - NLM STAT- MEDLINE DCOM- 20210702 LR - 20210702 IS - 1664-3224 (Electronic) IS - 1664-3224 (Linking) VI - 12 DP - 2021 TI - CFH I62V as a Putative Genetic Marker for Posner-Schlossman Syndrome. PG - 608723 LID - 10.3389/fimmu.2021.608723 [doi] LID - 608723 AB - Objective: Posner-Schlossman syndrome (PSS), also known as glaucomatocyclitic crisis, is an ocular condition characterized by recurrent attacks of anterior uveitis and raised intraocular pressure. Previous studies by our team and others have identified the genetic association of complement pathway genes with uveitis and glaucoma. This study aimed to investigate the complement genes in PSS patients with the view of elucidating the genetic background of the disease. Methods: A total of 331 subjects (56 PSS patients and 275 controls) were recruited for this study. We selected 27 variants in six complement pathway genes (SERPING1, C2, CFB, CFH, C3, and C5) and detected them using TaqMan single nucleotide polymorphism (SNP) Genotyping Assays. Univariate SNP association analysis, haplotype-based association analysis, gene-gene interaction analysis among complement genes, and genotype-phenotype correlation analysis were performed. Results: Among the 27 variants of six complement pathway genes, the functional variant I62V (rs800292) at the CFH gene was found to be significantly associated with PSS; there was a significant increase in the frequency of A allele and AA homozygosity in PSS patients than in controls (P = 1.79 x 10(-4); odds ratio (OR) 2.18, 95% CI: 1.44-3.29; P = 4.65 x 10(-4); OR 3.66, 95% CI: 1.70-7.85, respectively). The additive effect of CFH-rs800292 and SERPING1-rs3824988 was identified with an OR of 12.50 (95% CI: 2.16-72.28). Genotype-phenotype analysis indicated that the rs800292 AA genotype was associated with a higher intraocular pressure and higher frequency of recurrence. Unlike a high proportion of human leukocyte antigen (HLA)-B27 positivity in anterior uveitis, only 3 in 56 (5.36%) PSS patients were HLA-B27 positive. In addition, one haplotype block (GC) in the SERPING1 gene showed a nominal association with PSS with an increased risk of 2.04 (P = 0.01; 95% CI: 1.18-3.53), but the P-value could not withstand the Bonferroni correction (P(corr) > 0.05). Conclusion: This study revealed a genetic association of a CFH variant with PSS as well as its clinical parameters, implying that the alternative complement pathway might play an important role in the pathogenesis of PSS. Further studies to enrich the understanding of the genetic background of PSS and the role of the complement system in ocular inflammation are warranted. CI - Copyright (c) 2021 Yang, Sun, Meng, Qiu, Zeng, Ng, Jiang, Deng, Zeng, Wang and Luo. FAU - Yang, Ming Ming AU - Yang MM AD - Department of Ophthalmology, Shenzhen People's Hospital, The Second Clinical Medical College of Jinan University & The First Affiliated Hospital of Southern University of Science and Technology, Shenzhen, China. FAU - Sun, Hong Yan AU - Sun HY AD - Department of Ophthalmology, Shenzhen People's Hospital, The Second Clinical Medical College of Jinan University & The First Affiliated Hospital of Southern University of Science and Technology, Shenzhen, China. FAU - Meng, Ting AU - Meng T AD - Department of Ophthalmology, Shenzhen People's Hospital, The Second Clinical Medical College of Jinan University & The First Affiliated Hospital of Southern University of Science and Technology, Shenzhen, China. FAU - Qiu, Shan Hu AU - Qiu SH AD - Department of Endocrinology, Shenzhen People's Hospital, The Second Clinical Medical College of Jinan University & The First Affiliated Hospital of Southern University of Science and Technology, Shenzhen, China. FAU - Zeng, Qi Qiao AU - Zeng QQ AD - Department of Ophthalmology, Shenzhen People's Hospital, The Second Clinical Medical College of Jinan University & The First Affiliated Hospital of Southern University of Science and Technology, Shenzhen, China. FAU - Ng, Tsz Kin AU - Ng TK AD - Joint Shantou International Eye Center of Shantou University and The Chinese University of Hong Kong, Shantou, China. AD - Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, Hong Kong, China. FAU - Jiang, Li AU - Jiang L AD - Department of Ophthalmology, Shenzhen People's Hospital, The Second Clinical Medical College of Jinan University & The First Affiliated Hospital of Southern University of Science and Technology, Shenzhen, China. FAU - Deng, Ting Ming AU - Deng TM AD - Department of Ophthalmology, Shenzhen People's Hospital, The Second Clinical Medical College of Jinan University & The First Affiliated Hospital of Southern University of Science and Technology, Shenzhen, China. FAU - Zeng, Ai Neng AU - Zeng AN AD - Department of Ophthalmology, Shenzhen People's Hospital, The Second Clinical Medical College of Jinan University & The First Affiliated Hospital of Southern University of Science and Technology, Shenzhen, China. FAU - Wang, Jun AU - Wang J AD - Department of Endocrinology, Shenzhen People's Hospital, The Second Clinical Medical College of Jinan University & The First Affiliated Hospital of Southern University of Science and Technology, Shenzhen, China. FAU - Luo, Xiao Ling AU - Luo XL AD - Department of Ophthalmology, Shenzhen People's Hospital, The Second Clinical Medical College of Jinan University & The First Affiliated Hospital of Southern University of Science and Technology, Shenzhen, China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20210211 PL - Switzerland TA - Front Immunol JT - Frontiers in immunology JID - 101560960 RN - 0 (CFH protein, human) RN - 0 (Genetic Markers) RN - 80295-65-4 (Complement Factor H) SB - IM MH - Adult MH - *Alleles MH - Case-Control Studies MH - Complement Factor H/genetics MH - Epistasis, Genetic MH - Eye Diseases, Hereditary/*diagnosis/*genetics MH - Female MH - Gene Frequency MH - Genetic Association Studies MH - *Genetic Markers MH - *Genetic Predisposition to Disease MH - Genotype MH - Humans MH - Linkage Disequilibrium MH - Male MH - Middle Aged MH - Odds Ratio MH - Phenotype MH - *Polymorphism, Single Nucleotide PMC - PMC7904693 OTO - NOTNLM OT - complement factor H OT - complement system OT - genes OT - posner-schlossman syndrome (PSS) OT - single nucleotide polymorphisms OT - uveitis COIS- The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. EDAT- 2021/03/02 06:00 MHDA- 2021/07/03 06:00 PMCR- 2021/01/01 CRDT- 2021/03/01 05:36 PHST- 2020/09/21 00:00 [received] PHST- 2021/01/22 00:00 [accepted] PHST- 2021/03/01 05:36 [entrez] PHST- 2021/03/02 06:00 [pubmed] PHST- 2021/07/03 06:00 [medline] PHST- 2021/01/01 00:00 [pmc-release] AID - 10.3389/fimmu.2021.608723 [doi] PST - epublish SO - Front Immunol. 2021 Feb 11;12:608723. doi: 10.3389/fimmu.2021.608723. eCollection 2021.