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Gu J, Sun J, Zhang Y, Wang X, Fu L, Li L, Wang D, Wang X, Yu L, Han X. Lack of association between TNFA and TNFB polymorphisms and the risk of multiple sclerosis: a meta-analysis from 37 studies. Expert Rev Clin Immunol 2022; 18:1083-1090. [PMID: 35998365 DOI: 10.1080/1744666x.2022.2117160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Epidemiological studies about the association between genetic polymorphisms in TNFA, TNFB, and IFNG and the risk for multiple sclerosis (MS) have been performed extensively. However, the results are inconclusive. The purpose of this meta-analysis was to evaluate the contribution of the polymorphisms in TNFA, TNFB, and IFNG to the susceptibility of MS. METHODS The PubMed, Web of Science, and China National Knowledge Infrastructure databases were searched to identify relevant studies up to October 2021. A meta-analysis was performed and pooled odds ratios (OR) and confidence intervals (CI) were computed using fixed or random effects models. RESULTS A marginally significant association of the IFNG +874AT genotype with high risk of MS was observed in a heterozygous comparison (OR = 1.51, 95% CI, 1.02-2.23). However, no significant association between the TNFA (-308G/A, -238G/A, and -376G/A) and TNFB +252A/G polymorphisms and MS risk was observed both in overall analysis and in subgroup analysis. CONCLUSION This meta-analysis provides evidence that the TNFA (-308G/A, -238G/A, and -376G/A) and TNFB +252A/G polymorphisms were not risk factors for the occurrence of MS. Further studies with larger samples are necessary to reach the concise results about the contribution of other polymorphisms to the risk of MS.
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Affiliation(s)
- Jiebing Gu
- No. 1 Department of Neurology, China-Japan Union Hospital of Jilin University, Changchun, Jilin, 130031, P.R.China
| | - Jing Sun
- Department of Dermatology, China-Japan Union Hospital of Jilin University, Changchun, Jilin, 130031, P.R.China
| | - Yingyu Zhang
- No. 1 Department of Neurology, China-Japan Union Hospital of Jilin University, Changchun, Jilin, 130031, P.R.China
| | - Xiaoshuang Wang
- No. 1 Department of Neurology, China-Japan Union Hospital of Jilin University, Changchun, Jilin, 130031, P.R.China
| | - Lingling Fu
- No. 1 Department of Neurology, China-Japan Union Hospital of Jilin University, Changchun, Jilin, 130031, P.R.China
| | - Linfang Li
- No. 1 Department of Neurology, China-Japan Union Hospital of Jilin University, Changchun, Jilin, 130031, P.R.China
| | - Di Wang
- No. 1 Department of Neurology, China-Japan Union Hospital of Jilin University, Changchun, Jilin, 130031, P.R.China
| | - Xiuting Wang
- No. 1 Department of Neurology, China-Japan Union Hospital of Jilin University, Changchun, Jilin, 130031, P.R.China
| | - Le Yu
- No. 1 Department of Neurology, China-Japan Union Hospital of Jilin University, Changchun, Jilin, 130031, P.R.China
| | - Xuemei Han
- No. 1 Department of Neurology, China-Japan Union Hospital of Jilin University, Changchun, Jilin, 130031, P.R.China
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Exome sequencing reveals novel rare variants in Iranian familial multiple sclerosis: The importance of POLD2 in the disease pathogenesis. Genomics 2021; 113:2645-2655. [PMID: 34116171 DOI: 10.1016/j.ygeno.2021.06.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 04/20/2021] [Accepted: 06/06/2021] [Indexed: 02/07/2023]
Abstract
The prevalence of familial multiple sclerosis (FMS) is increasing worldwide which endorses the heritability of the disease. Given that many genome variations are ethnicity-specific and consanguineous marriage could affect genetic diseases, hereditary disease gene analysis among FMS patients from Iran, a country with high rates of parental consanguinity, could be highly effective in finding mutations underlying disease pathogenesis. To examine rare genetic mutations, we selected three Iranian FMS cases with ≥3 MS patients in more than one generation and performed whole exome sequencing. We identified a homozygous rare missense variant in POLD2 (p. Arg141Cys; rs372336011). Molecular dynamics analysis showed reduced polar dehydration energy and conformational changes in POLD2 mutant. Further, we found a heterozygote rare missense variant in NBFP1 (p. Gly487Asp; rs778806175). Our study revealed the possible role of novel rare variants in FMS. Molecular dynamic simulation provided the initial evidence of the structural changes behind POLD2 mutant.
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3
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Association study of Interleukin 10 gene polymorphisms in Iraqi patients with multiple sclerosis. GENE REPORTS 2020. [DOI: 10.1016/j.genrep.2020.100948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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4
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Derynck R, Turley SJ, Akhurst RJ. TGFβ biology in cancer progression and immunotherapy. Nat Rev Clin Oncol 2020; 18:9-34. [DOI: 10.1038/s41571-020-0403-1] [Citation(s) in RCA: 199] [Impact Index Per Article: 49.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/07/2020] [Indexed: 02/07/2023]
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5
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Moghbeli M. Genetic and Molecular Biology of Multiple Sclerosis Among Iranian Patients: An Overview. Cell Mol Neurobiol 2020; 40:65-85. [PMID: 31482432 DOI: 10.1007/s10571-019-00731-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [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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6
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The association between multiple sclerosis and genetic variations of TGFβ1 and IL2 genes in Iraqi patients. Meta Gene 2019. [DOI: 10.1016/j.mgene.2019.01.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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7
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Imani D, Azimi A, Salehi Z, Rezaei N, Emamnejad R, Sadr M, Izad M. Association of nod-like receptor protein-3 single nucleotide gene polymorphisms and expression with the susceptibility to relapsing-remitting multiple sclerosis. Int J Immunogenet 2018; 45:329-336. [DOI: 10.1111/iji.12401] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 05/13/2018] [Accepted: 08/16/2018] [Indexed: 01/18/2023]
Affiliation(s)
- Danyal Imani
- Immunology Department, School of Medicine; Tehran University of Medical Sciences; Tehran Iran
| | - Amirreza Azimi
- Neurology Department, School of Medicine; Tehran University of Medical Sciences; Tehran Iran
- MS Research Center, Neuroscience Institute; Tehran University of Medical Sciences; Tehran Iran
| | - Zahra Salehi
- Immunology Department, School of Medicine; Tehran University of Medical Sciences; Tehran Iran
| | - Nima Rezaei
- Immunology Department, School of Medicine; Tehran University of Medical Sciences; Tehran Iran
- Molecular Immunology Research Center; Tehran University of Medical Sciences; Tehran Iran
| | - Rahimeh Emamnejad
- Immunology Department, School of Medicine; Shahre-Kord University of Medical Sciences, Shahre-Kord; Iran
| | - Maryam Sadr
- Molecular Immunology Research Center; Tehran University of Medical Sciences; Tehran Iran
| | - Maryam Izad
- Immunology Department, School of Medicine; Tehran University of Medical Sciences; Tehran Iran
- MS Research Center, Neuroscience Institute; Tehran University of Medical Sciences; Tehran Iran
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8
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Galehdari H, Zabihi R, Ghanbari M F, Delfan N, Rahim F. Association of IL-10 (-1082 G/A Polymorphism) with Multiple Sclerosis Risk: A Systematic Review and Meta-Analysis. ACTA ACUST UNITED AC 2015. [DOI: 10.3923/ajcb.2015.25.34] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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9
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Hu S, Chen Y, Sun XD, Li FJ, Shu QF, Liu XL, Jiang SF. Association between IL-6-174G/C polymorphism and risk of multiple sclerosis: a meta-analysis. Genet Test Mol Biomarkers 2013; 18:127-30. [PMID: 24328460 DOI: 10.1089/gtmb.2013.0387] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
OBJECTIVE Interleukin-6 (IL-6) is a pleiotropic cytokine and important mediator of many inflammatory processes, which might affect susceptibility to multiple sclerosis (MS). The aim of this study was to assess the effect of IL-6-174G/C polymorphism on the risk of MS using a meta-analysis. MATERIALS AND METHODS The Pubmed, ISI Web of Science, Wanfang, VIP, and China National Knowledge Infrastructure databases were screened and six studies were included in the meta-analysis. Pooled odds ratios (ORs) with corresponding 95% confidence intervals (CI) were calculated to evaluate the association between the IL-6-174G/C polymorphism and risk of MS. RESULTS No significant association between the IL-6-174G/C polymorphism and risk of MS was observed in overall analyses. With stratification according to ethnicity, we found that carriers with the IL-6-174CC genotype had a 1.87-fold increased risk for the development of MS in Asians (recessive model: OR=1.87, 95% CI, 1.08-3.24), but not in Caucasians. CONCLUSION This meta-analysis provides evidence that the IL-6-174G/C polymorphism may be a risk factor for the development of MS in Asians. Further association studies with a larger sample size are required to confirm the result in different populations.
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Affiliation(s)
- Shan Hu
- 1 Air Force Centre of Aviation Medical Evaluation and Training in Hangzhou , Hangzhou, China
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10
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The neuroprotective functions of transforming growth factor beta proteins. Int J Mol Sci 2012; 13:8219-8258. [PMID: 22942700 PMCID: PMC3430231 DOI: 10.3390/ijms13078219] [Citation(s) in RCA: 173] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2012] [Revised: 05/24/2012] [Accepted: 06/19/2012] [Indexed: 12/26/2022] Open
Abstract
Transforming growth factor beta (TGF-β) proteins are multifunctional cytokines whose neural functions are increasingly recognized. The machinery of TGF-β signaling, including the serine kinase type transmembrane receptors, is present in the central nervous system. However, the 3 mammalian TGF-β subtypes have distinct distributions in the brain suggesting different neural functions. Evidence of their involvement in the development and plasticity of the nervous system as well as their functions in peripheral organs suggested that they also exhibit neuroprotective functions. Indeed, TGF-β expression is induced following a variety of types of brain tissue injury. The neuroprotective function of TGF-βs is most established following brain ischemia. Damage in experimental animal models of global and focal ischemia was shown to be attenuated by TGF-βs. In addition, support for their neuroprotective actions following trauma, sclerosis multiplex, neurodegenerative diseases, infections, and brain tumors is also accumulating. The review will also describe the potential mechanisms of neuroprotection exerted by TGF-βs including anti-inflammatory, -apoptotic, -excitotoxic actions as well as the promotion of scar formation, angiogenesis, and neuroregeneration. The participation of these mechanisms in the neuroprotective effects of TGF-βs during different brain lesions will also be discussed.
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11
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Zuo Z, Lei H, Wang X, Wang Y, Sonntag W, Sun Z. Aging-related kidney damage is associated with a decrease in klotho expression and an increase in superoxide production. AGE (DORDRECHT, NETHERLANDS) 2011; 33:261-74. [PMID: 20830528 PMCID: PMC3168600 DOI: 10.1007/s11357-010-9176-2] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2010] [Accepted: 08/18/2010] [Indexed: 05/04/2023]
Abstract
The purpose of this study was to determine changes in klotho, endothelin (ET) receptors, and superoxide production in kidneys of aged rats and whether these changes are exacerbated in aged rats with cognitive impairment. Twenty aged rats (male, 27 months) were divided into an Old Impaired group (n=9) and an Old Intact group (n=11) according to a cognitive function test. A group of 12-month-old rats (n=10) was used as a Young Intact group. Serum creatinine was increased significantly in the Old Impaired group, suggesting impaired renal function. Aged rats showed glomerulosclerosis and tubulointerstitialfibrosis. These pathological changes were markedly aggravated in the old cognitively impaired than in the old cognitively intact animals. Notably, aged rats demonstrated a significant decrease in klotho protein expression in renal cortex and medulla. Protein expression of IL-6, Nox2, ETa receptors and superoxide production were increased whereas mitochondrial SOD (MnSOD) and ETb receptors expression were decreased in kidneys of the aged rats. Interestingly, these changes were more pronounced in the old impaired than in the old intact rats. In conclusion, the aging-related kidney damage was exacerbated in aged rats with cognitive impairment. Klotho, ETB, and MnSOD were downregulated but ETa, IL-6, Nox2, and superoxide production were upregulated in the aging-related kidney damage. These changes were more pronounced in rats with cognitive impairment.
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Affiliation(s)
- Zhong Zuo
- Department of Cardiology, the First Affiliated Hospital, Chongqing Medical University, Chongqing, 400016 China
| | - Han Lei
- Department of Cardiology, the First Affiliated Hospital, Chongqing Medical University, Chongqing, 400016 China
| | - Xiuqing Wang
- Department of Physiology, College of Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104 USA
| | - Yuhong Wang
- Department of Physiology, College of Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104 USA
| | - William Sonntag
- Donald W. Reynolds Department of Geriatric Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104 USA
| | - Zhongjie Sun
- Department of Physiology, College of Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104 USA
- Department of Cardiology, the First Affiliated Hospital, Chongqing Medical University, Chongqing, 400016 China
- The Robert and Mary Cade Laboratory, University of Oklahoma Health Sciences Center (OUHSC), 940 S. L. Young Blvd., Oklahoma City, OK 73126-0901 USA
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12
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Nikolopoulos GK, Masgala A, Tsiara C, Limitsiou OK, Karnaouri AC, Dimou NL, Bagos PG. Cytokine gene polymorphisms in multiple sclerosis: a meta-analysis of 45 studies including 7379 cases and 8131 controls. Eur J Neurol 2011; 18:944-51. [PMID: 21299734 DOI: 10.1111/j.1468-1331.2011.03355.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- G K Nikolopoulos
- Hellenic Centre for Diseases Control and Prevention, Athens, Greece
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Spooren A, Kolmus K, Laureys G, Clinckers R, De Keyser J, Haegeman G, Gerlo S. Interleukin-6, a mental cytokine. ACTA ACUST UNITED AC 2011; 67:157-83. [PMID: 21238488 DOI: 10.1016/j.brainresrev.2011.01.002] [Citation(s) in RCA: 271] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2010] [Revised: 12/21/2010] [Accepted: 01/08/2011] [Indexed: 12/18/2022]
Abstract
Almost a quarter of a century ago, interleukin-6 (IL-6) was discovered as an inflammatory cytokine involved in B cell differentiation. Today, IL-6 is recognized to be a highly versatile cytokine, with pleiotropic actions not only in immune cells, but also in other cell types, such as cells of the central nervous system (CNS). The first evidence implicating IL-6 in brain-related processes originated from its dysregulated expression in several neurological disorders such as multiple sclerosis, Alzheimer's disease and Parkinson's disease. In addition, IL-6 was shown to be involved in multiple physiological CNS processes such as neuron homeostasis, astrogliogenesis and neuronal differentiation. The molecular mechanisms underlying IL-6 functions in the brain have only recently started to emerge. In this review, an overview of the latest discoveries concerning the actions of IL-6 in the nervous system is provided. The central position of IL-6 in the neuroinflammatory reaction pattern, and more specifically, the role of IL-6 in specific neurodegenerative processes, which accompany Alzheimer's disease, multiple sclerosis and excitotoxicity, are discussed. It is evident that IL-6 has a dichotomic action in the CNS, displaying neurotrophic properties on the one hand, and detrimental actions on the other. This is in agreement with its central role in neuroinflammation, which evolved as a beneficial process, aimed at maintaining tissue homeostasis, but which can become malignant when exaggerated. In this perspective, it is not surprising that 'well-meant' actions of IL-6 are often causing harm instead of leading to recovery.
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Affiliation(s)
- Anneleen Spooren
- Laboratory of Eukaryotic Signal Transduction and Gene Expression, University of Ghent, K.L. Ledeganckstraat 35, 9000 Gent, Belgium.
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Yang Y, Sun R, Yang H, Zheng F, Gong F. -308 G > A of TNF-α gene promoter decreases the risk of multiple sclerosis: a meta-analysis. Mult Scler 2010; 17:658-65. [PMID: 21177755 DOI: 10.1177/1352458510394009] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND Environmental and genetic factors are thought to be involved in the pathogenesis of multiple sclerosis (MS). Polymorphisms of tumor necrosis factor (TNF)-α -308 were implicated in MS risk in several case-control association studies. However, the studies have shown inconsistent results. OBJECTIVES To address the association of G/A polymorphisms of TNF-α -308 with MS risk by meta-analysis. METHODS Thirteen studies were included. Pooled odds ratios (ORs) together with 95% confidence intervals (CIs) were calculated. RESULTS A total of 1870 cases and 2769 controls were included in the meta-analysis. The pooled result indicated that -308 A allele is significantly associated with reduced risk of MS compared with -308 G allele (A vs. G, p=0.022). The same pattern of the result was also obtained in the contrasts of AA+ GA vs. GG (p=0.008) and GA vs. GG (p=0.007). For AA vs. GG or AA vs. GA + GG, no significant association was detected most likely caused by very low frequency or non-availability of homozygote genotype AA for all of the studies. CONCLUSIONS TNF-α -308 A allele is associated with reduced risk of MS.
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Affiliation(s)
- Yan Yang
- Department of Immunology, Tongji Medical College, Huazhong University of Science and Technology, #13 Hangkong Road, Wuhan, China
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