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Augusto Silva Dos Santos Rodrigues P, Lima de Oliveira A, Mattos Brandão K, de Sá Garcia Landeiro L, Cardoso Calmon L, Victor Andrade Cruz J, Dos Anjos Silva M, Flávia Silva Rocha A, Silva Carvalho de Souza D, Tupiná Alcântara de Moreira A, de Oliveira Santos J, Miranda Barbosa Dos Santos T, Pimentel Pinheiro G, Augusto Souza da Cruz Filho Á, Alexandrina Viana de Figueiredo C, de Moura Santos P, Dos Santos Costa R. Genetic variants in the TNF pathway impact TNFi response in a mixed population with rheumatoid arthritis. Gene 2024; 928:148804. [PMID: 39089529 DOI: 10.1016/j.gene.2024.148804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 06/17/2024] [Accepted: 07/26/2024] [Indexed: 08/04/2024]
Abstract
Rheumatoid arthritis (RA) is a multifactorial autoimmune inflammatory disease that mainly affects the joints, on reducing functional capacity and impacting quality of life. Cytokines such as tumor necrosis factor (TNF) and interleukin 6 (IL-6) are crucial in the pathogenesis and treatment of this disease. Some patients using TNF inhibitors (TNFi) do not respond or lose their response to these medications. Clinical, sociodemographic, and genetic data were used to evaluate the associations of single nucleotide polymorphisms (SNP) in TNF, TNFRSF1A, and TNFRSF1B genes with the diagnosis of RA, standardized score results, laboratory tests, and response to TNFi. In one subsample, TNF and IL-6 serum levels cytokines were performed. A total of 654 subjects (360 healthy controls and 294 diagnosed with RA) were included in the analysis. Higher levels of TNF have been found in individuals diagnosed with RA. IL-6 levels were higher in individuals who did not respond to TNFi treatment, while responders had levels comparable to those without the disease. No associations were found between the SNPs studied and the diagnosis of RA; however, rs767455-C seems to play a role in the response to golimumab treatment, being related to better therapeutic response and lower mean serum leukocyte levels. In addition, rs1061622-G was associated with poorer functional capacity and rs1800629-A was associated with higher leukocyte values and serum transaminase levels. The rs1061622-G and rs767455-C may play a role in the response to TNFi treatment, especially for patients using golimumab, although they do not seem to be associated with the diagnosis of RA. Polymosphisms in the TNF pathway may impact baseline levels of immune cells and markers of renal and hepatic function in RA patients. Our results highlight the importance of evaluating the impact of these polymorphisms on TNFi response and safety, particularly in larger-scale studies.
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Affiliation(s)
- Pedro Augusto Silva Dos Santos Rodrigues
- Department of Bioregulation, Laboratory of Immunopharmacology and Molecular Biology, Institute of Health Sciences, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Almirane Lima de Oliveira
- Department of Bioregulation, Laboratory of Immunopharmacology and Molecular Biology, Institute of Health Sciences, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Katarina Mattos Brandão
- Department of Medicine, School of Pharmacy, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Lilian de Sá Garcia Landeiro
- Department of Bioregulation, Laboratory of Immunopharmacology and Molecular Biology, Institute of Health Sciences, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Laryssa Cardoso Calmon
- Department of Bioregulation, Laboratory of Immunopharmacology and Molecular Biology, Institute of Health Sciences, Federal University of Bahia, Salvador, Bahia, Brazil
| | - João Victor Andrade Cruz
- Department of Bioregulation, Laboratory of Immunopharmacology and Molecular Biology, Institute of Health Sciences, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Mailane Dos Anjos Silva
- Department of Bioregulation, Laboratory of Immunopharmacology and Molecular Biology, Institute of Health Sciences, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Ana Flávia Silva Rocha
- Department of Medicine, School of Pharmacy, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Deyse Silva Carvalho de Souza
- Centro de Infusões e Medicamentos Especializados Da Bahia (CIMEB), Directorate of Pharmaceutical Assistance, Health Secretary of the State of Bahia, Salvador, Bahia, Brazil
| | - Aramis Tupiná Alcântara de Moreira
- Centro de Infusões e Medicamentos Especializados Da Bahia (CIMEB), Directorate of Pharmaceutical Assistance, Health Secretary of the State of Bahia, Salvador, Bahia, Brazil
| | - Junison de Oliveira Santos
- Centro de Infusões e Medicamentos Especializados Da Bahia (CIMEB), Directorate of Pharmaceutical Assistance, Health Secretary of the State of Bahia, Salvador, Bahia, Brazil
| | - Thamara Miranda Barbosa Dos Santos
- Centro de Infusões e Medicamentos Especializados Da Bahia (CIMEB), Directorate of Pharmaceutical Assistance, Health Secretary of the State of Bahia, Salvador, Bahia, Brazil
| | | | | | - Camila Alexandrina Viana de Figueiredo
- Department of Bioregulation, Laboratory of Immunopharmacology and Molecular Biology, Institute of Health Sciences, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Pablo de Moura Santos
- Department of Medicine, School of Pharmacy, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Ryan Dos Santos Costa
- Department of Bioregulation, Laboratory of Immunopharmacology and Molecular Biology, Institute of Health Sciences, Federal University of Bahia, Salvador, Bahia, Brazil.
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Wang YL, Li XY, Liu L, Li SF, Han PF, Li XD. Evaluation of genetic polymorphisms in TNF‑α‑308G/A rs1800629 associated with susceptibility and severity of rheumatoid arthritis: A systematic review and meta‑analysis. Exp Ther Med 2024; 28:279. [PMID: 38800041 PMCID: PMC11117118 DOI: 10.3892/etm.2024.12567] [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: 09/08/2023] [Accepted: 04/15/2024] [Indexed: 05/29/2024] Open
Abstract
To investigate the association of gene polymorphisms of TNF-α-308G/A rs1800629 with the susceptibility and severity of rheumatoid arthritis (RA), literature from PubMed, EMBASE, Web of Science and CNKI databases was searched. Two authors screened the literature independently, extracted data and evaluated the risk of bias of the included studies. According to the inclusion and exclusion criteria, five genetic models were established: The allelic model (A vs. G), dominant model (GA + AA vs. GG), recessive model (AA vs. GG + GA), co-dominant model (AA vs. GG) and super-dominant model (GG + AA vs. GA). Stata 17.0 software was used for the meta-analysis. A total of 34 eligible studies with 12,611 subjects were included, including 6,030 cases in the RA group and 6,581 controls. Meta-analysis calculations revealed that the genetic polymorphisms of TNF-α-308G/A rs1800629 were not significantly associated with susceptibility to RA, with an odds ratio and 95% confidence interval (CI) for each genetic model [A vs. G: 0.937 (0.762-1.152); GA + AA vs. GG: 0.918 (0.733-1.148); AA vs. GG + GA: 1.131 (0.709-1.802); AA vs. GG: 1.097 (0.664-1.813); and GG + AA vs. GA: 1.108 (0.894-1.373)]. For the association between TNF-α-308G/A rs1800629 gene polymorphisms and the severity of RA, the results of subgroup analysis calculations showed that TNF-α-308G/A rs1800629 gene polymorphisms were associated with the severity of RA in European populations, with the gene model and 95% CI [GA + AA vs. GG: 0.503 (0.297-0.853); and GG + AA vs. GA: 2.268 (1.434-3.590)]. When assessing the confidence in the positive results of the present study through the false-positive report probability, the positive results were observed to be reliable. No significant association was observed between genetic polymorphisms in TNF-α-308G/A rs1800629 and susceptibility to RA. However, a significant association exists with the severity of RA in European populations.
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Affiliation(s)
- Yun-Lu Wang
- Department of Orthopedics, The Second People's Hospital of Changzhi City, Changzhi, Shanxi 046000, P.R. China
- Graduate School, Changzhi Medical College, Changzhi, Shanxi 046000, P.R. China
| | - Xi-Yong Li
- Graduate School, Changzhi Medical College, Changzhi, Shanxi 046000, P.R. China
| | - Lun Liu
- Department of Orthopedics, The Second People's Hospital of Changzhi City, Changzhi, Shanxi 046000, P.R. China
- Graduate School, Changzhi Medical College, Changzhi, Shanxi 046000, P.R. China
| | - Song-Feng Li
- Graduate School, Changzhi Medical College, Changzhi, Shanxi 046000, P.R. China
| | - Peng-Fei Han
- Department of Orthopedics, Heping Hospital Affiliated to Changzhi Medical College, Changzhi, Shanxi 046000, P.R. China
| | - Xiao-Dong Li
- Department of Orthopedics, The Second People's Hospital of Changzhi City, Changzhi, Shanxi 046000, P.R. China
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The TNFA -857C/T Polymorphism: Association with Rheumatoid Arthritis and Anti-CCP Levels in a Mexican Population. J Immunol Res 2019; 2019:2637607. [PMID: 31687411 PMCID: PMC6803725 DOI: 10.1155/2019/2637607] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 09/05/2019] [Indexed: 01/10/2023] Open
Abstract
Rheumatoid arthritis (RA) is a chronic inflammatory disease whose association with SNPs has led to the identification of biomarkers in different populations. To determine the association of the -857C/T SNP of the TNFA gene with RA and clinical parameters, 233 RA patients and 237 healthy controls were included in this study. The -857C/T polymorphism was determined using the TaqMan® system and clinical features were also determined. We found that the -857C/T SNP was in Hardy-Weinberg equilibrium. Our results showed no association of the -857C/T SNP with RA; however, RA patients carrying the TT genotype showed lower anti-CCP levels than other groups. Therefore, the TT genotype could be a risk factor for developing anti-CCP-negative RA. Our results suggest that the T allele of the TNFA -857C/T SNP exerts an influence on anti-CCP levels and could be a candidate marker for anti-CCP-negative RA.
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Cadena-Sandoval D, Alemán-Ávila I, Barbosa-Cobos RE, Becerril-Mendoza LT, Fragoso JM, Ramírez-Bello J. Tumor necrosis factor (TNF) and TNFR1 polymorphisms are not risk factors for rheumatoid arthritis in a Mexican population. Mol Biol Rep 2018; 45:227-232. [PMID: 29404828 DOI: 10.1007/s11033-018-4155-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Accepted: 01/30/2018] [Indexed: 02/03/2023]
Abstract
Tumor necrosis factor (TNF) plays an important role in the pathogenesis of rheumatoid arthritis (RA). Different genetic variants including the TNF -308G/A polymorphism are associated with RA susceptibility. However, these findings have not been replicated in all populations. The aim of this study was to determine whether the TNF -1031T/C (rs1799964), -376G/A (rs1800750), -308G/A (rs1800629) -238G/A (rs361525), and TNFR1 -609G/T polymorphisms are associated with RA susceptibility in a sample of Mexican patients. Our study included 499 patients with RA and 492 healthy controls. The genotypes of the TNF polymorphisms were obtained using TaqMan assay. The genotype and allele frequencies of the TNF -1031T/C, -376G/A, -308G/A, -238G/A, and TNFR1 -609G/T polymorphisms were similar among RA cases versus healthy controls, and no association with RA susceptibility was identified. Our results suggest that the TNF -1031T/C, -376G/A, -308G/A, -238G/A, and TNFR1 -609G/T polymorphisms are not associated with RA susceptibility in a sample of Mexican patients.
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Affiliation(s)
- Daniel Cadena-Sandoval
- Research Unit on Endocrine and Metabolic Diseases, Hospital Juarez of México, Av. Instituto Politécnico Nacional 5160, Gustavo A. Madero, Magdalena de las Salinas, 07760, Mexico City, Mexico.,Superior School of Medicine Postgraduate Program, National Polytechnic Institute, Mexico City, Mexico
| | - Isidro Alemán-Ávila
- Research Unit on Endocrine and Metabolic Diseases, Hospital Juarez of México, Av. Instituto Politécnico Nacional 5160, Gustavo A. Madero, Magdalena de las Salinas, 07760, Mexico City, Mexico
| | | | | | - José Manuel Fragoso
- Molecular Biology Laboratory, National Institute of Cardiology, Mexico City, Mexico
| | - Julián Ramírez-Bello
- Research Unit on Endocrine and Metabolic Diseases, Hospital Juarez of México, Av. Instituto Politécnico Nacional 5160, Gustavo A. Madero, Magdalena de las Salinas, 07760, Mexico City, Mexico.
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Yang ZC, Xu F, Tang M, Xiong X. Association Between TNF-α Promoter −308 A/G Polymorphism and Systemic Lupus Erythematosus Susceptibility: A Case-Control Study and Meta-Analysis. Scand J Immunol 2017; 85:197-210. [PMID: 27943420 DOI: 10.1111/sji.12516] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Accepted: 11/26/2016] [Indexed: 12/28/2022]
Affiliation(s)
- Z.-C. Yang
- Department of Rheumatology and Immunology; the Affiliated Hospital of Southwest Medical University; Luzhou Sichuan China
| | - F. Xu
- Department of Rheumatology and Immunology; the Affiliated Hospital of Southwest Medical University; Luzhou Sichuan China
| | - M. Tang
- Department of Rheumatology and Immunology; the Affiliated Hospital of Southwest Medical University; Luzhou Sichuan China
| | - X. Xiong
- Department of Dermatology; the Affiliated Hospital of Southwest Medical University; Luzhou Sichuan China
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Association of TNF-α gene promoter region polymorphisms in bovine leukemia virus (BLV)-infected cattle with different proviral loads. Arch Virol 2015; 160:2001-7. [PMID: 26051703 DOI: 10.1007/s00705-015-2448-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Accepted: 05/05/2015] [Indexed: 01/10/2023]
Abstract
Tumor necrosis factor alpha (TNF-α) is a pleiotropic cytokine involved in the immune response against viral and other infections. Its expression levels are affected by a polymorphism in the promoter region of the gene. Bovine leukemia virus is a retrovirus that infects cattle and develops two different infection profiles in the host. One profile is characterized by a high number of proviral copies integrated into the host genome and a strong immune response against the virus, while the most relevant property of the other profile is that the number of copies integrated into the host genome is almost undetectable and the immune response is very weak. We selected a population of cattle sufficiently large for statistical analysis and classified them according to whether they had a high or low proviral load (HPL or LPL). Polymorphisms in the promoter region were identified by PCR-RFLP. The results indicated that, in the HPL group, the three possible genotypes were normally distributed and that, in the LPL group, there was a significant association between the proviral load and a low frequency of the G/G genotype at position -824.
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Silva GAV, Ramasawmy R, Boechat AL, Morais AC, Carvalho BKS, Sousa KBA, Souza VC, Cunha MGS, Barletta-Naveca RH, Santos MP, Naveca FG. Association of TNF -1031 C/C as a potential protection marker for leprosy development in Amazonas state patients, Brazil. Hum Immunol 2015; 76:137-41. [PMID: 25636570 DOI: 10.1016/j.humimm.2015.01.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Revised: 12/26/2014] [Accepted: 01/14/2015] [Indexed: 12/30/2022]
Abstract
Polymorphisms present in the TNF promoter region has shown to influence the gene transcription. Leprosy displays different clinical manifestations according to the immune responses of the individual infected with Mycobacterium leprae. In this study, we evaluated the single nucleotide polymorphisms (SNPs) -238 G/A (rs361525), -308 G/A (rs1800629), -857 C/T (rs1799724), -863 A/C (rs1800630) and -1031 T/C (rs1799964) in the promoter region of the TNF to see whether these SNPs influence host-susceptibility to leprosy and the different clinical manifestation. Nucleotide sequencing was performed with DNA samples from 108 leprosy patients and 253 control subjects. An association between -1031 C/C genotype and protection from leprosy was observed when leprosy patients were compared to controls (OR 0.11; 95% CI=0.01-0.82; p=0.012). The -857 C/T genotype may be associated with susceptibility to leprosy (OR=1.81; 95% CI=1.09-3.00; p=0.028). Similar genotype and allele frequencies for the SNPs -308 G/A and -238 G/A were observed between leprosy patients and control subjects. Altogether, TNF polymorphisms in the promoter region may be predictive of leprosy outcome.
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Affiliation(s)
- G A V Silva
- Instituto Leônidas e Maria Deane, FIOCRUZ Amazônia, Manaus, Amazonas, Brazil.
| | - R Ramasawmy
- Fundação de Medicina Tropical Doutor Heitor Vieira Dourado, Manaus, Amazonas, Brazil; Faculdade de Medicina, Universidade Nilton Lins, Manaus, Amazonas, Brazil
| | - A L Boechat
- Laboratório de Imunologia, Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal do Amazonas, Manaus, Brazil
| | - A C Morais
- Instituto Leônidas e Maria Deane, FIOCRUZ Amazônia, Manaus, Amazonas, Brazil
| | - B K S Carvalho
- Instituto Leônidas e Maria Deane, FIOCRUZ Amazônia, Manaus, Amazonas, Brazil
| | - K B A Sousa
- Instituto Leônidas e Maria Deane, FIOCRUZ Amazônia, Manaus, Amazonas, Brazil
| | - V C Souza
- Instituto Leônidas e Maria Deane, FIOCRUZ Amazônia, Manaus, Amazonas, Brazil
| | - M G S Cunha
- Fundação de Dermatologia e Venereologia Alfredo da Matta, Manaus, Amazonas, Brazil
| | - R H Barletta-Naveca
- Laboratório de Micobacteriologia, Instituto Nacional de Pesquisas da Amazônia, Manaus, Amazonas, Brazil
| | - M P Santos
- Laboratório de Micobacteriologia, Instituto Nacional de Pesquisas da Amazônia, Manaus, Amazonas, Brazil
| | - F G Naveca
- Instituto Leônidas e Maria Deane, FIOCRUZ Amazônia, Manaus, Amazonas, Brazil
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Role of TNF block genetic variants in HIV-associated sensory neuropathy in black Southern Africans. Eur J Hum Genet 2014; 23:363-8. [PMID: 24896147 DOI: 10.1038/ejhg.2014.104] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2013] [Revised: 04/03/2014] [Accepted: 04/26/2014] [Indexed: 11/08/2022] Open
Abstract
HIV-associated sensory neuropathy (HIV-SN) is a common neurological complication of HIV infection. The TNF block is a region within the central MHC that contains many immunoregulatory genes. Polymorphisms and haplotypes of the TNF block have been associated with increased risk of HIV-SN in Asians and whites. Here we investigated genetic associations with HIV-SN in 342 black Southern Africans (190 cases and 152 neuropathy-free controls) using single nucleotide polymorphisms (SNPs) spanning the TNF block and a set of haplotypes defined by 31 SNPs in Asian and white populations (denoted FVa). We included population-appropriate tagSNPs derived from an African population (Yoruban, YRI, HapMap) and derived extended haplotypes comprising 61 SNPs (denoted FVa_ext b). We found no association between HIV-SN and carriage of two SNPs (TNF-1031/rs1799964*C and BAT1 (intron10)/rs9281523*C) associated with HIV-SN in whites and Asians. Additionally, a haplotype containing TNF-1031/rs1799964*C associated with increased risk of HIV-SN in Asians, but was not present in this African population. However, alleles of seven SNPs associated with reduced risk of HIV-SN (corrected for age, height and multiple comparisons). These were rs11796*A, rs3130059*G, rs2071594*C, NFKBIL1-62/rs2071592*A, rs2071591*A, LTA+252/rs909253*G, rs1041981*C. One haplotype (FV18_ext1), not containing these alleles, was associated with increased risk of HIV-SN after correction for age, height and multiple comparisons. Our results confirm the involvement of genes in the TNF block in altering risk for HIV-SN, but genotypes critical in this African population differed from those affecting HIV-SN in whites and Asians. These differences support the need for genetic association studies in diverse populations.
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Zheng RL, Zhang H, Jiang WL. Tumor necrosis factor-alpha 308G>A polymorphism and risk of rheumatic heart disease: a meta-analysis. Sci Rep 2014; 4:4731. [PMID: 24751687 PMCID: PMC3994435 DOI: 10.1038/srep04731] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Accepted: 03/31/2014] [Indexed: 12/29/2022] Open
Abstract
Rheumatic heart disease (RHD) remains a serious cardiovascular disorder across the world. Tumor necrosis factor alpha (TNF-α) codifies a potent immunomodulator and pro-inflammatory cytokine that mediates diverse pathological processes. A promoter 308G>A polymorphism in TNF-α has been implicated in RHD risk. However, the results remain controversial. Therefore, to evaluate more precise estimations of the relationship, a meta-analysis was performed. A total of 7 studies including 735 RHD cases and 926 controls were involved in this meta-analysis. Overall, our results revealed that there was a significant association with RHD risk in three genetic models (homozygous model: OR = 3.06, 95%CI = 1.22–10.60, P = 0.020; dominant model, OR = 2.03, 95%CI = 1.01–4.07, P = 0.048; and recessive model, OR = 4.26, 95%CI = 2.41–7.55, P < 0.001). Further ethnic population analysis found a significantly increased risk of RHD among Asians and Europeans. Interestingly, similar results were found among hospital-based studies. Begg's funnel plot and Egger's test did not reveal any publication bias. Taken together, this meta-analysis demonstrates that the TNF-α 308G>A polymorphism is associated with RHD susceptibility, and it contributes to the increased risk of RHD. However, additional well-designed studies with larger samples are warranted to confirm these findings.
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Affiliation(s)
- Ruo-Long Zheng
- Department of Cardiology, The Affiliated Jiangyin hospital of Medical College of Southeast University, Wuxi 214400, China
| | - Hua Zhang
- Department of Cardiology, The Affiliated Jiangyin hospital of Medical College of Southeast University, Wuxi 214400, China
| | - Wen-Long Jiang
- Department of Cardiology, The Affiliated Jiangyin hospital of Medical College of Southeast University, Wuxi 214400, China
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Shafia S, Sofi FA, Dilafroze, Rasool R, Javeed S, Shah ZA. The association between TNFα gene polymorphisms and susceptibility to rheumatoid arthritis in an ethnic Kashmiri population: relationship with disease activity and severity markers. Int J Rheum Dis 2014; 19:362-9. [PMID: 24382334 DOI: 10.1111/1756-185x.12270] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
AIM The aim of our study was to determine the genetic associations between polymorphisms of the TNFα gene (-308G/A and -238G/A) with disease susceptibility and severity in patients with rheumatoid arthritis (RA) in an ethnic Kashmiri population. METHODS Allele and genotype frequencies of TNFα-308G/A and TNFα-238G/A polymorphisms were compared between 150 RA patients and 200 healthy controls by using polymerase chain reaction - restriction fragment length polymorphism method. Demographic, clinical and serological data were prospectively evaluated. Disease activity score (DAS28) was also assessed. RESULTS We did not find any significant association between TNFα-308G/A and TNFα-238G/A polymorphism and RA risk (P > 0.05), but TNFα-308GG genotype was associated significantly with rheumatoid factor seropositivity (P < 0.01) and TNFα-238GA genotype was associated with swollen joint count < 5 (P = 0.04) as well as with less severe disease activity as measured by DAS28 score (P = 0.02). CONCLUSION Our findings suggest the possible roles of TNFα-308GG and TNFα-238GA as important determinants for the development of certain manifestations and disease severity in RA in ethnic Kashmiri population.
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Affiliation(s)
- Syed Shafia
- Department of Immunology and Molecular Medicine, Sher-I- Kashmir Institute of Medical Sciences, Srinagar, Kashmir, India
| | - Fayaz A Sofi
- Division of Rheumatology, Department of General Medicine, Sher-I- Kashmir Institute of Medical Sciences, Srinagar, Kashmir, India
| | - Dilafroze
- Department of Immunology and Molecular Medicine, Sher-I- Kashmir Institute of Medical Sciences, Srinagar, Kashmir, India
| | - Roohi Rasool
- Department of Immunology and Molecular Medicine, Sher-I- Kashmir Institute of Medical Sciences, Srinagar, Kashmir, India
| | - Sheikh Javeed
- Department of Physical Medicine and Rehabilitation, Sher-I- Kashmir Institute of Medical Sciences, Srinagar, Kashmir, India
| | - Zafar A Shah
- Department of Immunology and Molecular Medicine, Sher-I- Kashmir Institute of Medical Sciences, Srinagar, Kashmir, India
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Song GG, Bae SC, Kim JH, Lee YH. Association between TNF-α promoter –308 A/G polymorphism and rheumatoid arthritis: a meta-analysis. Rheumatol Int 2013; 34:465-71. [DOI: 10.1007/s00296-013-2919-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2013] [Accepted: 11/28/2013] [Indexed: 12/23/2022]
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