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Chen DP, Wen YH, Lin WT, Hsu FP, Yu KH. Exploration of the association between the single-nucleotide polymorphism of co-stimulatory system and rheumatoid arthritis. Front Immunol 2023; 14:1123832. [PMID: 37457686 PMCID: PMC10344454 DOI: 10.3389/fimmu.2023.1123832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 06/01/2023] [Indexed: 07/18/2023] Open
Abstract
Introduction The human leukocyte antigen (HLA) has been linked to the majority of autoimmune diseases (ADs). However, non-HLA genes may be risk factors for ADs. A number of genes encoding proteins involved in regulating T-cell and B-cell function have been identified as rheumatoid arthritis (RA) susceptibility genes. Methods In this study, we investigated the association between RA and single-nucleotide polymorphisms (SNPs) of co-stimulatory or co-inhibitory molecules in 124 RA cases and 100 healthy controls without immune-related diseases [including tumor necrosis factor superfamily member 4 (TNFSF4), CD28, cytotoxic T-lymphocyte-associated protein 4 (CTLA4), and programmed cell death protein 1 (PDCD1)]. Results The results showed that there were 13 SNPs associated with RA, including rs181758110 of TNFSF4 (CC vs. CT, p = 0.038); rs3181096 of CD28 (TT vs. CC + CT, p = 0.035; CC vs. TT, p = 0.047); rs11571315 (TT vs. CT, p = 0.045), rs733618 (CC vs. TT + CT, p = 0.043), rs4553808 (AA vs. AG vs. GG, p = 0.035), rs11571316 (GG vs. AG vs. AA, p = 0.048; GG vs. AG + AA, p = 0.026; GG vs. AG, p = 0.014), rs16840252 (CC vs. CT vs. TT, p = 0.007; CC vs. CT, p = 0.011), rs5742909 (CC vs. CT vs. TT, p = 0.040), and rs11571319 of CTLA4 (GG vs. AG vs. AA, p < 0.001; GG vs. AG + AA, p = 0.048; AA vs. GG + AG, p = 0.001; GG vs. AA, p = 0.008; GG vs. AG, p ≤ 0.001); and rs10204525 (TT vs. CT + CC, p = 0.024; TT vs. CT, p = 0.021), rs2227982 (AA vs. GG, p = 0.047), rs36084323 (TT vs. CT vs. CC, p = 0.022; TT vs. CT + CC, p = 0.013; CC vs. TT + CT, p = 0.048; TT vs. CC, p = 0.008), and rs5839828 of PDCD1 (DEL vs. DEL/G vs. GG, p = 0.014; DEL vs. DEL/G + GG, p = 0.014; GG vs. DEL + DEL/G, p = 0.025; DEL vs. GG, p = 0.007). Discussion Consequently, these SNPs may play an important role in immune regulation, and further research into the role of these SNPs of immune regulatory genes in the pathogenesis of RA is required.
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Affiliation(s)
- Ding-Ping Chen
- Department of Laboratory Medicine, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan
- Department of Medical Biotechnology and Laboratory Science, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Ying-Hao Wen
- Department of Laboratory Medicine, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan
- School of Medicine, National Tsing Hua University, Hsinchu, Taiwan
- School of Medicine, Chang Gung University, Taoyuan, Taiwan
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Wei-Tzu Lin
- Department of Laboratory Medicine, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Fang-Ping Hsu
- Department of Laboratory Medicine, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Kuang-Hui Yu
- Division of Rheumatology, Allergy, and Immunology, Linkou Chang Gung University and Memorial Hospital, Taoyuan, Taiwan
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Irfan M, Iqbal T, Hashmi S, Ghani U, Bhatti A. Insilico prediction and functional analysis of nonsynonymous SNPs in human CTLA4 gene. Sci Rep 2022; 12:20441. [PMID: 36443461 PMCID: PMC9705290 DOI: 10.1038/s41598-022-24699-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Accepted: 11/18/2022] [Indexed: 11/29/2022] Open
Abstract
The CTLA4 receptor is an immune checkpoint involved in the downregulation of T cells. Polymorphisms in this gene have been found to be associated with different diseases like rheumatoid arthritis, autosomal dominant immune dysregulation syndrome, juvenile idiopathic arthritis and autoimmune Addison's disease. Therefore, the identification of polymorphisms that have an effect on the structure and function of CTLA4 gene is important. Here we identified the most damaging missense or non-synonymous SNPs (nsSNPs) that might be crucial for the structure and function of CTLA4 using different bioinformatics tools. These in silico tools included SIFT, PROVEAN, PhD-SNP, PolyPhen-2 followed by MutPred2, I-Mutant 2.0 and ConSurf. The protein structures were predicted using Phyre2 and I-TASSER, while the gene-gene interactions were predicted by GeneMANIA and STRING. Our study identified three damaging missense SNPs rs1553657429, rs1559591863 and rs778534474 in coding region of CTLA4 gene. Among these SNPs the rs1553657429 showed a loss of potential phosphorylation site and was found to be highly conserved. The prediction of gene-gene interaction showed the interaction of CTlA4 with other genes and its importance in different pathways. This investigation of damaging nsSNPs can be considered in future while studying CTLA4 related diseases and can be of great importance in precision medicine.
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Affiliation(s)
- Muhammad Irfan
- grid.412117.00000 0001 2234 2376Healthcare Biotechnology, National University of Science and Technology, Islamabad H-12, 44000 Pakistan
| | - Talha Iqbal
- grid.412117.00000 0001 2234 2376Healthcare Biotechnology, National University of Science and Technology, Islamabad H-12, 44000 Pakistan
| | - Sakina Hashmi
- grid.412117.00000 0001 2234 2376Healthcare Biotechnology, National University of Science and Technology, Islamabad H-12, 44000 Pakistan
| | - Uzma Ghani
- grid.412117.00000 0001 2234 2376Healthcare Biotechnology, National University of Science and Technology, Islamabad H-12, 44000 Pakistan
| | - Attya Bhatti
- grid.412117.00000 0001 2234 2376Healthcare Biotechnology, National University of Science and Technology, Islamabad H-12, 44000 Pakistan
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3
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Chen DP, Lin WT, Yu KH. Investigation of the association between the genetic polymorphisms of the co-stimulatory system and systemic lupus erythematosus. Front Immunol 2022; 13:946456. [PMID: 36189300 PMCID: PMC9521740 DOI: 10.3389/fimmu.2022.946456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 08/15/2022] [Indexed: 02/03/2023] Open
Abstract
Human leukocyte antigen genes have been shown to have the strongest association with autoimmune disease (AD). However, non-HLA genes would be risk factors of AD. Many genes encoding proteins that are related to T- and B-cell function have been identified as susceptibility genes of systemic lupus erythematosus (SLE). In this study, we explored the correlation between SLE and the genetic polymorphisms of co-stimulatory/co-inhibitory molecules, including CTLA4, CD28, ICOS, PDCD1, and TNFSF4. We found that there were nine single-nucleotide polymorphisms (SNPs) associated with SLE, namely, rs11571315 (TT vs. CT vs. CC: p < 0.001; TT vs. CT: p = 0.001; p = 0.005; TT vs. CT +CC: p < 0.001; TT+CT vs. CC: p = 0.032), rs733618 (CC vs. CT vs. TT: p = 0.002; CC vs. CT: p = 0.001; CC vs. TT: p = 0.018; CC vs. CT + TT: p = 0.001), rs4553808 (AA vs. AG: p < 0.001), rs62182595 (GG vs. AG vs. AA: p < 0.001; GG vs. AG: p < 0.001; GG vs. AG+AA: p < 0.001), rs16840252 (CC vs. CT vs. TT: p < 0.001; CC vs. CT: p < 0.001; CC vs. CT + TT: p < 0.001), rs5742909 (CC vs. CT: p = 0.027; CC vs. CT + TT: p = 0.044), rs11571319 (GG vs. AG vs. AA: p < 0.001, GG vs. AG: p < 0.001; GG vs. AG+AA: p < 0.001), rs36084323 (CC vs. CT vs. TT: p = 0.013, CC vs. TT: p = 0.004; CC vs. CT + TT: p = 0.015; CC +CT vs. TT: p = 0.015), and rs1234314 (CC vs. CG vs. GG: p = 0.005; GG vs. CC: p = 0.004; GG+ CG vs. CC: p = 0.001), but not in CD28 and ICOS by using the chi-square test. Additionally, rs62182595 and rs16840252 of CTLA and rs1234314 and rs45454293 of TNFSF4 were also associated with SLE in haplotypes. These SLE-related SNPs also had an association with several diseases. It was indicated that these SNPs may play an important role in immune regulation and pathogenic mechanisms.
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Affiliation(s)
- Ding-Ping Chen
- Department of Laboratory Medicine, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan,Department of Medical Biotechnology and Laboratory Science, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Wei-Tzu Lin
- Department of Laboratory Medicine, Linkou Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Kuang-Hui Yu
- Division of Rheumatology, Allergy, and Immunology, Chang Gung University and Memorial Hospital, Taoyuan, Taiwan,*Correspondence: Kuang-Hui Yu,
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Basile MS, Bramanti P, Mazzon E. The Role of Cytotoxic T-Lymphocyte Antigen 4 in the Pathogenesis of Multiple Sclerosis. Genes (Basel) 2022; 13:genes13081319. [PMID: 35893056 PMCID: PMC9394409 DOI: 10.3390/genes13081319] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 07/20/2022] [Accepted: 07/21/2022] [Indexed: 02/05/2023] Open
Abstract
Multiple sclerosis (MS) is an autoimmune neurodegenerative disorder of the central nervous system that presents heterogeneous clinical manifestations and course. It has been shown that different immune checkpoints, including Cytotoxic T-Lymphocyte Antigen 4 (CTLA-4), can be involved in the pathogenesis of MS. CTLA-4 is a critical regulator of T-cell homeostasis and self-tolerance and represents a key inhibitor of autoimmunity. In this scopingreview, we resume the current preclinical and clinical studies investigating the role of CTLA-4 in MS with different approaches. While some of these studies assessed the expression levels of CTLA-4 on T cells by comparing MS patients with healthy controls, others focused on the evaluation of the effects of common MS therapies on CTLA-4 modulation or on the study of the CTLA-4 blockade or deficiency in experimental autoimmune encephalomyelitis models. Moreover, other studies in this field aimed to discover if the CTLA-4 gene might be involved in the predisposition to MS, whereas others evaluated the effects of treatment with CTLA4-Ig in MS. Although these results are of great interest, they are often conflicting. Therefore, further studies are needed to reveal the exact mechanisms underlying the action of a crucial immune checkpoint such as CTLA-4 in MS to identify novel immunotherapeutic strategies for MS patients.
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Abdulaali Abed T, Abdulla AA. Correlation of -475 IL-2 Promoter Gene Polymorphisms and the Levels of Serum IL-2 on the Risk of Multiple Sclerosis. Rep Biochem Mol Biol 2022; 11:83-88. [PMID: 35765522 PMCID: PMC9208566 DOI: 10.52547/rbmb.11.1.83] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Accepted: 10/24/2021] [Indexed: 06/15/2023]
Abstract
BACKGROUND The aim of present study is to asset the IL-2 promoter gene (SNP -475) as a candidate gene for multiple sclerosis (MS) susceptibility. METHODS This study included 70 patients with relapsing - remitting multiple sclerosis (RRMS) and 50 healthy controls. Following the extraction of genomic DNA from peripheral blood, frequency of genotypes and alleles of SNP -475 was calculated using Restriction fragment length polymorphism-polymer chain reaction (RFLP-PCR) and then the results were analyzed statistically. RESULTS The results revealed the unusual ratio for the heterozygous (AT) was 1.6972 indicating that heterozygous patients were at higher risk of multiple sclerosis than wild homozygous (AA), and homomutant (TT). The results show protective role for - 475 IL-2 promoter among individuals with multiple sclerosis, (O.R: 0.4872; C.I. 95%: 0.1617- 1.4680) and (O.R: 0.9275; C.I. 95%: 0.2476 - 3.4745) for both AA and TT genotypes, respectively. CONCLUSION Our results showed that in this population of Iraqi patients, the AT genotype / A allele of -475 IL-2 promoter gene SNP may include attributed factors for MS predisposition.
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Affiliation(s)
| | - Anwar Ali Abdulla
- Department of Biology, College of Sciences, University of Babylon, Iraq.
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6
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Bansal A, Tasnim S, Gupta MD, Mp G, Batra V, Kohli S, Tyagi S, Pasha MAQ. Susceptibility of CTLA-4 -1661A/G polymorphism towards severity of rheumatic heart disease. Indian Heart J 2021; 73:511-515. [PMID: 34474769 PMCID: PMC8424281 DOI: 10.1016/j.ihj.2021.05.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 05/03/2021] [Accepted: 05/30/2021] [Indexed: 11/26/2022] Open
Abstract
AIM Genetic contribution in acute rheumatic fever (ARF)/rheumatic heart disease (RHD) has been suggested but not according to severity of the valve involvement. This study attempts to identify the relevance of CTLA-4 polymorphism with severity of the disease. METHODS In a case-control design, 291 healthy controls and 83 patients were genotyped for association between RHD and single-nucleotide polymorphisms -1661A/G of CTLA-4. RESULTS Segregation of patients on the basis of severity i.e., MVL (Mitral Valve Lesion) and CVL (Combined Valve Lesion) revealed that the frequency of CTLA-4 -1661G allele depleted as the disease progressed to CVL (p < 0.05). Patients in the age group of 31-45 years were significantly more susceptible (p < 0.046). Whereas, female patients were more susceptible than the male patients. CONCLUSION Our study suggests the risk associated with decreased frequency of CTLA-4 -1661G allele in the CVL group and in females.
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Affiliation(s)
- Ankit Bansal
- GB Pant Institute of Post Graduate Medical Education and Research, New Delhi, India
| | - Sana Tasnim
- CSIR-Institute of Genomics and Integrative Biology, Delhi, India
| | - Mohit D Gupta
- GB Pant Institute of Post Graduate Medical Education and Research, New Delhi, India.
| | - Girish Mp
- GB Pant Institute of Post Graduate Medical Education and Research, New Delhi, India
| | - Vishal Batra
- GB Pant Institute of Post Graduate Medical Education and Research, New Delhi, India
| | - Samantha Kohli
- CSIR-Institute of Genomics and Integrative Biology, Delhi, India
| | - Sanjay Tyagi
- GB Pant Institute of Post Graduate Medical Education and Research, New Delhi, India
| | - M A Qadar Pasha
- CSIR-Institute of Genomics and Integrative Biology, Delhi, India
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7
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Spanier JA, Nashold FE, Nelson CD, Praska CE, Hayes CE. Vitamin D 3-mediated resistance to a multiple sclerosis model disease depends on myeloid cell 1,25-dihydroxyvitamin D 3 synthesis and correlates with increased CD4 + T cell CTLA-4 expression. J Neuroimmunol 2019; 338:577105. [PMID: 31731231 DOI: 10.1016/j.jneuroim.2019.577105] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 10/23/2019] [Accepted: 11/04/2019] [Indexed: 01/17/2023]
Abstract
Microglial cell activation is the earliest biomarker of the inflammatory processes that cause central nervous system (CNS) lesions in multiple sclerosis. We hypothesized that 1,25-dihydroxyvitamin D3 (1,25-(OH)2D3) production by activated microglia and macrophages in the CNS inhibits these inflammatory processes. To test this hypothesis, we targeted the Cyp27b1 gene specifically in myeloid cells, then analyzed the influence of disrupted myeloid cell 1,25-(OH)2D3 synthesis on vitamin D3-mediated resistance to experimental autoimmune encephalomyelitis (EAE). Myeloid cell 1,25-(OH)2D3 synthesis was essential for vitamin D3-mediated EAE resistance. Increased CTLA-4 expression in the CNS-infiltrating CD4+ Tconv and Treg cells and decreased splenic B cell CD86 expression correlated with resistance. These new data provide solid support for the view that vitamin D3 reduces MS risk in part through a mechanism involving myeloid cell 1,25-(OH)2D3 production and CTLA-4 upregulation in CNS-infiltrating CD4+ T cells. We suggest that CTLA-4 serves as a vitamin D3-regulated immunological checkpoint in multiple sclerosis prevention.
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Affiliation(s)
- Justin A Spanier
- Department of Medicine, Center for Immunology, University of Minnesota, Minneapolis, MN, USA.
| | - Faye E Nashold
- Department of Biochemistry, College of Agricultural and Life Sciences, University of Wisconsin, Madison, WI, USA
| | - Corwin D Nelson
- Department of Animal Sciences, University of Florida, Gainesville, FL, USA
| | - Corinne E Praska
- Department of Biochemistry, College of Agricultural and Life Sciences, University of Wisconsin, Madison, WI, USA
| | - Colleen E Hayes
- Department of Biochemistry, College of Agricultural and Life Sciences, University of Wisconsin, Madison, WI, USA
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8
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Moghbeli M. Genetic and Molecular Biology of Multiple Sclerosis Among Iranian Patients: An Overview. Cell Mol Neurobiol 2019; 40:65-85. [PMID: 31482432 DOI: 10.1007/s10571-019-00731-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Accepted: 08/24/2019] [Indexed: 12/16/2022]
Abstract
Multiple sclerosis (MS) is one if the common types of autoimmune disorders in developed countries. Various environmental and genetic factors are associated with initiation and progression of MS. It is believed that the life style changes can be one of the main environmental risk factors. The environmental factors are widely studied and reported, whereas minority of reports have considered the role of genetic factors in biology of MS. Although Iran is a low-risk country in the case of MS prevalence, it has been shown that there was a dramatically rising trend of MS prevalence among Iranian population during recent decades. Therefore, it is required to assess the probable MS risk factors in Iran. In the present study, we summarized all of the reported genes until now which have been associated with MS susceptibility among Iranian patients. To clarify the probable molecular biology of MS progression, we categorized these reported genes based on their cellular functions. This review paves the way of introducing a specific population-based diagnostic panel of genetic markers among the Iranian population for the first time in the world.
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Affiliation(s)
- Meysam Moghbeli
- Medical Genetics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
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Qin XY, Lu J, Li GX, Wen L, Liu Y, Xu LP, Chang YJ, Liu KY, Jiang ZF, Huang XJ. CTLA-4 polymorphisms are associated with treatment outcomes of patients with multiple myeloma receiving bortezomib-based regimens. Ann Hematol 2017; 97:485-495. [DOI: 10.1007/s00277-017-3203-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2017] [Accepted: 12/04/2017] [Indexed: 12/25/2022]
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10
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Haibing X, Xu C, Jifu C, Wenshuang Z, Ling L, Yuzhen C, Yanjun H. Correlation between CTLA-4 gene rs221775A>G single nucleotide polymorphism and multiple sclerosis susceptibility. A meta-analysis. Open Med (Wars) 2017; 11:264-269. [PMID: 28352806 PMCID: PMC5329839 DOI: 10.1515/med-2016-0052] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Accepted: 06/13/2016] [Indexed: 01/28/2023] Open
Abstract
OBJECTIVE The aim of this meta-analysis was to undertake a meta-analysis to evaluate the correlation between cytotoxic T-lymphocyte-associated protein 4 (CTLA-4) gene rs221775 A>G single nucleotide polymorphism and the susceptibility of multiple sclerosis (MS) susceptibility. METHOD Published manuscripts about CTLA-4 gene rs221775A>G single nucleotide polymorphism and multiple sclerosis susceptibility were searched in the computerized bibliographic searches of Pubmed Embase and China National Knowledge Infrastructure (CNKI). Potential studies were screened and data for 5025 MS patients and 4706 controls from 20 publications were included. The association between CTLA-4 gene rs221775A>G single nucleotide polymorphism and multiple sclerosis susceptibility were demonstrated by odds ratio (OR) and 95% confidence interval (95%CI). RESULTS The pooled results showed no significant association between CTLA-4 gene rs221775A>G single nucleotide polymorphism and multiple sclerosis susceptibility for dominant genetic model [OR=1.02, 95%CI:0.90~1.05, (P=0.80)], homozygous genetic model [OR=0.85,95%CI:0.71 ~1.03,(P=0.10)] and recessive genetic model [OR=0.99,95% CI:0.89~1.10,(P=0.90)]. CONCLUSION With current evidence, CTLA-4 gene rs221775A>G single nucleotide polymorphism had no association with the susceptibility of multiple sclerosis.
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Affiliation(s)
- Xiao Haibing
- Neurology, Internal Medicine, The University of Hong Kong-Shenzhen Hospital, Futian District, Shenzhen, Guangdong, PR China
| | - Cao Xu
- Department of Neurology, Shenzhen People's Hospital, Jinan University, Luohu District, Shenzhen, Guangdong, PR China
| | - Cai Jifu
- Neurology, Internal Medicine, The University of Hong Kong-Shenzhen Hospital, Futian District, Shenzhen, Guangdong, PR China
| | - Zeng Wenshuang
- Neurology, Internal Medicine, The University of Hong Kong-Shenzhen Hospital, Futian District, Shenzhen, Guangdong, PR China
| | - Li Ling
- Neurology, Internal Medicine, The University of Hong Kong-Shenzhen Hospital, Futian District, Shenzhen, Guangdong, PR China
| | - Cui Yuzhen
- Neurology, Internal Medicine, The University of Hong Kong-Shenzhen Hospital, Futian District, Shenzhen, Guangdong, PR China
| | - Hu Yanjun
- Neurology, Internal Medicine, The University of Hong Kong-Shenzhen Hospital, Futian District, Shenzhen, Guangdong, PR China
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11
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Qin XY, Wang Y, Li GX, Qin YZ, Wang FR, Xu LP, Chen H, Han W, Wang JZ, Zhang XH, Chang YJ, Liu KY, Jiang ZF, Huang XJ. CTLA-4 polymorphisms and haplotype correlate with survival in ALL after allogeneic stem cell transplantation from related HLA-haplotype-mismatched donor. J Transl Med 2016; 14:100. [PMID: 27118383 PMCID: PMC4847362 DOI: 10.1186/s12967-016-0864-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Accepted: 04/12/2016] [Indexed: 11/25/2022] Open
Abstract
Background Allogeneic hematopoietic stem cell transplantation (allo-HSCT) has been established as an effective treatment for patients with hematological malignancies. Disease relapse remains a major cause of transplant failure. T cell homeostasis is critical to determine the potency of the GVT effect. Recent studies have shown the association of the CTLA-4 polymorphisms with the outcome after HLA-identical sibling allogeneic HSCT. Methods In this study, we focused on four CTLA-4 polymorphisms, and analyzed the impact of donor genotypes and haplotypes on the conditions of 152 acute leukemia patients (ALL 83) after related HLA-haplotype- mismatched transplantation. The four SNP genotypes (−1661, −318, CT60 and +49) were determined by TaqMan SNP genotyping assays. Results ALL recipients of donors with +49 GG showed significantly lower OS (67.7 vs. 90.3 %, P = 0.015) than those with GA+AA. Multivariate analyses showed that +49 GG was an independent risk factor for OS (HR: 0.306, 95 % CI 0.111–0.842, P = 0.022) .23 ALL patients receiving mDLI showed significantly lower OS with +49 GG donor than those with GA+AA (30.0 vs. 83.1 %, P = 0.003). The haplotype analysis revealed only three haplotypes in the donor population −1661/−318/CT60/+49 i.e., ACGG, ACAA and GTGA, the frequencies were 64.1, 19.4 and 16.5 %, respectively. Donors with and without the ACGG/ACGG haplotype had the same effect on transplant outcomes as those with +49 GG and +49 GA+AA. Conclusion In summary, the CTLA-4 +49 GG and the haplotype ACGG/ACGG reduced the overall survival in ALL after allo-HSCT from the related HLA-haplotype-mismatched donor, knowledge of the CTLA-4 polymorphism and haplotype may provide useful information for donor selection and individual application of immunosuppressive agents and immunotherapy.
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Affiliation(s)
- X-Y Qin
- Peking University People's Hospital, Peking University Institute of Hematology, Beijing, China.,Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - Y Wang
- Peking University People's Hospital, Peking University Institute of Hematology, Beijing, China.,Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - G-X Li
- Peking University People's Hospital, Peking University Institute of Hematology, Beijing, China.,Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - Y-Z Qin
- Peking University People's Hospital, Peking University Institute of Hematology, Beijing, China.,Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - F-R Wang
- Peking University People's Hospital, Peking University Institute of Hematology, Beijing, China.,Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - L-P Xu
- Peking University People's Hospital, Peking University Institute of Hematology, Beijing, China.,Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - H Chen
- Peking University People's Hospital, Peking University Institute of Hematology, Beijing, China.,Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - W Han
- Peking University People's Hospital, Peking University Institute of Hematology, Beijing, China.,Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - J-Z Wang
- Peking University People's Hospital, Peking University Institute of Hematology, Beijing, China.,Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - X-H Zhang
- Peking University People's Hospital, Peking University Institute of Hematology, Beijing, China.,Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - Y-J Chang
- Peking University People's Hospital, Peking University Institute of Hematology, Beijing, China.,Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - K-Y Liu
- Peking University People's Hospital, Peking University Institute of Hematology, Beijing, China.,Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - Z-F Jiang
- State Key Laboratory of Protein and Plant Gene Research, Key Laboratory of Cell Proliferation and Differentiation of the Ministry of Education school of Life Sciences, Peking University, Beijing, China.,Peking University-Tsinghua University Joint Center for Life Sciences, Beijing, China
| | - X-J Huang
- Peking University People's Hospital, Peking University Institute of Hematology, Beijing, China. .,Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China. .,Peking-Tsinghua Center for Life Sciences, Beijing, China. .,Peking University People's Hospital, Peking University Institute of Hematology, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Peking-Tsinghua Center for Life Sciences, 11 Xizhimen South Street, Beijing, 100044, Peoples' Republic of China.
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Niknam A, Karimi MH, Yaghobi R, Geramizadeh B, Roozbeh J, Salehipour M, Iravani M. The Association Between Viral Infections and Co-stimulatory Gene Polymorphisms in Kidney Transplant Outcomes. Jundishapur J Microbiol 2016; 9:e31338. [PMID: 27800130 PMCID: PMC5076488 DOI: 10.5812/jjm.31338] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Revised: 10/26/2015] [Accepted: 11/28/2015] [Indexed: 01/11/2023] Open
Abstract
Background The surveillance of kidney transplant patients depends on function of different immunologic markers like co-stimulatory molecules. These molecules may also be associated with post kidney transplant viral related outcomes. Objectives The aim of this study was to investigate the possible associations between co-stimulatory molecule gene polymorphisms and viral infections in kidney transplant patients. Patients and Methods In total, 172 kidney transplant patients were included in this study. Single nucleotide polymorphisms in loci of co-stimulatory molecules including: PDCD.1, CD28, CTLA4 and ICOS, were analyzed in the studied patients by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) methods. Active Cytomegalovirus (CMV) infection and history of hepatitis C virus (HCV) infection were analyzed in each kidney transplant patient using the CMV antigenemia kit and HCV antibody assay, according to the manufacturer’s instructions. Results CMV active infection was found in 31 of 172 (18.02%) kidney transplant patients. HCV infection was only found in two of the 172 (1.16%) studied patients. Significant associations were found between TT and TC genotypes of CTLA4 -1722T/C and T allele with acute rejection in CMV infected kidney transplant patients. A significant association was also found between the T allele of CD28 + 17 C/T genetic polymorphism and acute rejection in CMV infected kidney transplant patients. Significantly higher frequency of AA genotype and A allele of CTLA4 + 49AG polymorphism were found in CMV infected female patients. Also a significantly higher frequency of GG genotype and G allele of PDCD-1.3A/G polymorphisms were found in CMV infected female patients. Conclusions Based on these results, CTLA4 and CD28 genetic polymorphisms, which regulate T-cell activation, can influence active CMV infection in kidney transplant patients. These results should be confirmed by further investigations.
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Affiliation(s)
- Ahmad Niknam
- Transplant Research Center, Shiraz University of Medical Sciences, Shiraz, IR Iran
| | - Mohammad Hossein Karimi
- Transplant Research Center, Shiraz University of Medical Sciences, Shiraz, IR Iran
- Corresponding author: Mohammad Hossein Karimi, Transplant Research Center, Shiraz University of Medical Sciences, Shiraz, IR Iran. Tel: +98-7136473954, Fax: +98-7136473954, E-mail:
| | - Ramin Yaghobi
- Transplant Research Center, Shiraz University of Medical Sciences, Shiraz, IR Iran
| | - Bita Geramizadeh
- Transplant Research Center, Shiraz University of Medical Sciences, Shiraz, IR Iran
| | - Jamshid Roozbeh
- Transplant Research Center, Shiraz University of Medical Sciences, Shiraz, IR Iran
| | - Mehdi Salehipour
- Transplant Research Center, Shiraz University of Medical Sciences, Shiraz, IR Iran
| | - Mahdiyar Iravani
- Transplant Research Center, Shiraz University of Medical Sciences, Shiraz, IR Iran
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Liu J, Zhang HX. CTLA-4 gene and the susceptibility of multiple sclerosis: an updated meta-analysis study including 12,916 cases and 15,455 controls. J Neurogenet 2014; 28:153-63. [PMID: 24665874 DOI: 10.3109/01677063.2014.880703] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract Cytotoxic T-lymphocyte antigen-4 (CTLA-4) is a cell surface molecule involved in the regulation of T cells. Single-nucleotide polymorphisms (SNPs) of CTLA-4 gene are known to be associated with susceptibility to several autoimmune diseases, including multiple sclerosis (MS). This study aimed to evaluate the association between CTLA-4 and the risk of MS. Comprehensive meta-analysis was applied to case-control studies of the association between MS and CTLA-4 to assess the joint evidence for the association, the influence of individual studies, and evidence for publication bias. The authors searched PubMed, MEDLINE, Cochrane Library, and reference lists of relevant studies to September 2013. In all, the allele or genotype analysis showed no significant association between + 49A/G, - 318C/T, or CT60A/G and MS. And the subgroups of the three polymorphisms divided into Americas, Europe, and Asia showed no significant association with MS. The sensitivity analysis or publication bias analysis showed no significance. In conclusion, this comprehensive meta-analysis suggested that + 49A/G, - 318C/T, or CT60A/G polymorphism, either in total analysis or in subgroup analyses, has no significant association with MS disease.
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Affiliation(s)
- Jie Liu
- Shanghai Institute of Orthopaedics and Traumatology, Shanghai Ruijin Hospital, Shanghai Jiaotong University School of Medicine , Shanghai , China
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14
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Iravani-Saadi M, Karimi MH, Yaghobi R, Geramizadeh B, Ramzi M, Niknam A, Pourfathollah A. Polymorphism of costimulatory molecules (CTLA4, ICOS, PD.1 and CD28) and allogeneic hematopoietic stem cell transplantation in Iranian patients. Immunol Invest 2014; 43:391-404. [DOI: 10.3109/08820139.2013.879594] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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15
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Shojaa M, Aghaie M, Amoli M, Javid N, Shakeri F, Khashayar P, Tabarraei A, Keshtkar AA, Joshaghani HR, Kouroshnia A, Qorbani M, Mahmoudi F, Mohebbi R, Ranjbarpour N. Association between 318C/T polymorphism of the CTLA-4
gene and systemic lupus erythematosus in Iranian patients. Int J Rheum Dis 2014; 20:2040-2044. [DOI: 10.1111/1756-185x.12275] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Mahdieh Shojaa
- Golestan University of Medical Sciences; Gorgan Iran
- Osteoporosis Research Center; Endocrinology and Metabolism Clinical Sciences Institute; Tehran University of Medical Sciences; Tehran Iran
| | - Mehrdad Aghaie
- Department of Rheumatology; Faculty of Medicine; Bone Joint and Connective Tissue Research Center (BJCRC); Golestan University of Medical Sciences; Gorgan Iran
| | - Mahsa Amoli
- Endocrinology & Metabolism Research Center (EMRC); Endocrinology and Metabolism Clinical Sciences Institute; Tehran University of Medical Sciences; Tehran Iran
| | - Naemeh Javid
- Golestan University of Medical Sciences; Gorgan Iran
| | | | - Patricia Khashayar
- Osteoporosis Research Center; Endocrinology and Metabolism Clinical Sciences Institute; Tehran University of Medical Sciences; Tehran Iran
| | | | - Abbas A. Keshtkar
- Osteoporosis Research Center; Endocrinology and Metabolism Clinical Sciences Institute; Tehran University of Medical Sciences; Tehran Iran
| | | | - Arghavan Kouroshnia
- Endocrinology & Metabolism Research Center (EMRC); Endocrinology and Metabolism Clinical Sciences Institute; Tehran University of Medical Sciences; Tehran Iran
| | - Mostafa Qorbani
- Department of Public Health; Alborz University of Medical Sciences; Karaj Iran
- Non-communicable Diseases Research Center; Endocrinology and Metabolism Population Sciences Institute; Tehran University of Medical Sciences; Tehran Iran
| | - Faranak Mahmoudi
- Genetics Department; Islamic Azad University Tehran; Tehran Medical Branch; Tehran Iran
| | - Ramin Mohebbi
- Medical School; Shahed University of Medical Sciences; Tehran Iran
| | - Neda Ranjbarpour
- Genetics Department; Islamic Azad University Tehran; Tehran Medical Branch; Tehran Iran
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Thude H, Schipler AD, Treszl A, Peine S, Koch M, Sterneck M, Nashan B. Lack of association between CTLA-4 and PDCD1 polymorphisms and acute rejection in German liver transplant recipients. Hum Immunol 2013; 74:1041-5. [DOI: 10.1016/j.humimm.2013.04.021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2012] [Revised: 01/23/2013] [Accepted: 04/10/2013] [Indexed: 11/28/2022]
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17
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Gyu Song G, Ho Lee Y. CTLA-4 +49 A/G and −318 C/T polymorphisms and susceptibility to multiple sclerosis: a meta-analysis. Immunol Invest 2013; 42:409-22. [DOI: 10.3109/08820139.2013.803114] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Association of genetic variation in co-stimulatory molecule genes with outcome of liver transplant in Iranian patients. Gene 2012; 504:127-32. [DOI: 10.1016/j.gene.2012.04.055] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2012] [Revised: 03/01/2012] [Accepted: 04/18/2012] [Indexed: 01/10/2023]
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19
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Jagasia M, Clark WB, Brown-Gentry KD, Crawford DC, Fan KH, Chen H, Kassim A, Greer JP, Engelhardt BG, Savani BN. Genetic variation in donor CTLA-4 regulatory region is a strong predictor of outcome after allogeneic hematopoietic cell transplantation for hematologic malignancies. Biol Blood Marrow Transplant 2011; 18:1069-75. [PMID: 22178694 DOI: 10.1016/j.bbmt.2011.12.518] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2011] [Accepted: 12/06/2011] [Indexed: 11/26/2022]
Abstract
Relapse remains a major cause of death after allogeneic hematopoietic cell transplantation (allo-HCT). Graft-versus-tumor effect is primarily mediated by donor T cells. Cytotoxic T lymphocyte antigen-4 (CTLA-4) is a critical inhibitor of T cell proliferation. Single nucleotide polymorphisms (SNPs) in CTLA-4 may affect immune responses. We hypothesized that CTLA-4 SNPs will be associated with disease control after allo-HCT. One hundred sixty-four adult patients with the availability of pretransplantation recipient and donor DNA samples were included in this analysis. Ten tagSNPs of the CTLA-4 gene were identified. Donor CTLA-4 SNP rs4553808 was associated with decreased relapse-free survival (RFS) (P = .019) and overall survival (OS) (P = .033). In multivariable analysis of an additive genetic model, genotype of CTLA-4 SNP rs4553808 was an independent risk factor for inferior RFS (hazard ratio [HR] = 1.73, 95% confidence interval [CI] 1.10-2.71, P = .017) and OS (HR = 1.84, 95% CI 1.13-3.0, P = .015). CTLA-4 SNPs can be used to identify high-risk patient subsets that may benefit from preemptive immunomodulation to decrease relapse rates and improve survival.
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Affiliation(s)
- Madan Jagasia
- Hematology and Stem Cell Transplantation Section, Division of Hematology/Oncology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA.
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Csöngei V, Járomi L, Sáfrány E, Sipeky C, Magyari L, Polgár N, Bene J, Sarlós P, Lakner L, Baricza E, Szabó M, Rappai G, Melegh B. Interaction between CTLA4 gene and IBD5 locus in Hungarian Crohn's disease patients. Int J Colorectal Dis 2011; 26:1119-25. [PMID: 21519805 DOI: 10.1007/s00384-011-1202-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/11/2011] [Indexed: 02/04/2023]
Abstract
BACKGROUNDS AND AIMS The IGR2198a_1 and IGR2096a_1 variants of the IBD5 region were found to be associated with Crohn's disease (CD) in the Hungarian population, while IGR2230a_1 does not seem to confer risk for the disease. In the present study, our aim was to investigate the statistical interaction of these three IBD5 polymorphisms with the +49 A/G substitution within the cytotoxic T lymphocyte antigen-4 (CTLA4) gene, detected previously as neutral gene variant in Hungarian IBD patients. METHODS A total of 305 unrelated subjects with CD and 310 healthy controls were genotyped with PCR-RFLP methods. RESULTS In contrast with single gene effects, after genotype stratification, the IGR2198a_1 C and IGR2096a_1 T variants were found to confer susceptibility only in subjects with CTLA4 +49 AA genotype (P = 0.008; OR = 1.86 and P = 0.016; OR = 1.74, respectively), for IGR2230a_1 no such effect on disease risk could be demonstrated. CONCLUSION Analysis of specific genotype combinations unfolded a possible association between the CTLA4 +49 A/G substitution and two of the observed IBD5 variants with respect to disease risk.
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Affiliation(s)
- Veronika Csöngei
- Department of Medical Genetics, University of Pécs, Pécs, Szigeti út 12, H-7624, Hungary
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Čizmarević NS, Gašparović I, Peterlin B, Sepčić J, Rudolf G, Kapović M, Lavtar P, Ristić S. CTLA-4 +49 A/G gene polymorphism in Croatian and Slovenian multiple sclerosis patients. Int J Immunogenet 2011; 38:419-26. [DOI: 10.1111/j.1744-313x.2011.01027.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Rai E, Wakeland EK. Genetic predisposition to autoimmunity--what have we learned? Semin Immunol 2011; 23:67-83. [PMID: 21288738 DOI: 10.1016/j.smim.2011.01.015] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2010] [Accepted: 01/10/2011] [Indexed: 12/20/2022]
Abstract
Rapid advances in genetic technologies have led to the identification of more than 85 loci that contribute to susceptibility to autoimmune diseases. These susceptibility genes are distributed throughout the innate and adaptive immune systems, indicating that dysregulations in both immune systems participate in the development of autoimmunity. A significant subset of these susceptibility genes are shared between multiple autoimmune diseases. However, the dysregulation of specific pathways, such as the pathogen recognition receptors of the innate immune system and the TNF supergene family, are significantly involved in some autoimmune diseases. Although these findings dramatically increase the details available concerning the nature of genetic predisposition to autoimmunity, a mechanistic understanding of the processes involved has not been achieved. Future studies must focus on correlating phenotypes with specific genotypes to improve our understanding of the immune processes that are dysregulated during the development of autoimmunity.
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Affiliation(s)
- Ekta Rai
- Department of Immunology, University of Texas Southwestern Medical Center, Dallas, TX 75229, USA
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Jiang T, Ge LQ, Chen ZT, Li C, Zhou F, Luo Y, Xia B. Effect of cytotoxic T lymphocyte-associated molecule 4 1661 gene polymorphism on its expression and transcription in ulcerative colitis. J Dig Dis 2010; 11:369-75. [PMID: 21091900 DOI: 10.1111/j.1751-2980.2010.00462.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVE Our aim was to investigate the expression of cytotoxic T lymphocyte-associated molecule 4 (CTLA-4) in ulcerative colitis (UC) and to evaluate the effect of CTLA-4 gene -1661A/G polymorphism on CTLA-4 expression and transcription. METHODS A total of 20 UC patients and 22 healthy controls matched by age and sex were enrolled at Zhongnan Hospital of Wuhan University in central China. The CTLA-4 -1661A/G polymorphism was genotyped by the polymerase chain reaction-restriction fragment length polymorphism method. A Western blot analysis was performed to determine the full length CTLA-4 (flCTLA-4) protein expression in the peripheral blood of the UC patients. Serum-soluble CTLA-4 (sCTLA-4) levels were measured by enzyme-linked immunosorbent assay. CTLA-4-1661G mutant promoter transcription function was analyzed by site-directed PCR-based mutagenesis. RESULTS CTLA-4 protein expression on CD4(+) T cells in UC patients was lower than that in the healthy controls (P < 0.001) while serum sCTLA-4 in the UC patients was significantly higher than that in the healthy controls (P < 0.001). No correlation was found between flCTLA-4 and sCTLA-4 expression levels and the -1661 A/G polymorphism of the CTLA-4 gene. Meanwhile, CTLA-4 -1661 allele A had no significant impact on the promoter activity compared with allele G (P > 0.05). CONCLUSION CTLA-4 expressions were aberrant in UC patients compared with the healthy controls. CTLA-4 -1661A/G polymorphism had no significant impact on CTLA-4 expression and transcription in the peripheral CD4 T cells of UC patients.
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Affiliation(s)
- Ting Jiang
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei Province, China
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CTLA4 and CD86 gene polymorphisms and susceptibility to chronic obstructive pulmonary disease. Hum Immunol 2010; 71:1141-6. [PMID: 20732370 DOI: 10.1016/j.humimm.2010.08.007] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2010] [Revised: 07/19/2010] [Accepted: 08/16/2010] [Indexed: 12/14/2022]
Abstract
Chronic obstructive pulmonary disease (COPD) may be related to chronic inflammation and immune-mediated conditions, and its pathogenesis involves T-cell activation and proliferation. Cytotoxic T-lymphocyte-associated protein 4 (CTLA-4) and costimulatory molecules (CD80/CD86) genes are important mediators of T-cell activation in the immune response. The aim of this study was to investigate whether +2379G/C (rs17281995) and +1057G/A (rs1129055) in CD86 and -318C/T (rs5742909) and +49A/G (rs231775) in CTLA-4 genes single nucleotide polymorphisms (SNPs) are associated with COPD in a Chinese population. The four polymorphisms were identified in 396 COPD patients and 400 controls using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). The frequency of the T allele of the -318C/T in CTLA-4 and the A allele of the +1057G/A in CD86 polymorphisms showed significant association with COPD when compared with controls (T allele: p < 0.0001; A allele: p = 0.009). Comparison of genotype frequencies showed that -318CT, +1057GA, and +1057AA genotype was overrepresented in the COPD group, respectively (-318CT: 50.8% vs 28.5%, p < 0.0001; +1057GA: 58.6% vs 54.2%, p = 0.002; +1057AA: 30.1% vs 25.8%, p = 0.002). However, we failed to find any association between the four SNPs and COPD when cases were classified by smoking status or clinical stages (p > 0.05). The results indicate that the polymorphisms of CTLA-4 (-318C/T) and CD86 (+1057G/A) may be important genetic factor associated with risk or protection for COPD in Chinese population.
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