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Banday MZ, Balkhi HM, Hamid Z, Sameer AS, Chowdri NA, Haq E. Tumor necrosis factor-α (TNF-α)-308G/A promoter polymorphism in colorectal cancer in ethnic Kashmiri population - A case control study in a detailed perspective. Meta Gene 2016; 9:128-36. [PMID: 27331018 PMCID: PMC4908285 DOI: 10.1016/j.mgene.2016.06.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Accepted: 06/01/2016] [Indexed: 12/31/2022] Open
Abstract
Background Inflammation constitutes one of the important components of colorectal cancer (CRC) pathogenesis. Tumor necrosis factor-α (TNF-α), a cytokine and an important inflammatory mediator plays a pivotal role in the malignant cellular proliferation, angiogenesis, tissue invasion and metastasis in CRC. The studies on association of various polymorphisms in human TNF-α gene including TNF-α-308G/A single nucleotide polymorphism (SNP) are limited, mixed and inconclusive. Materials and methods The aim of this study was to analyze the association of TNF-α-308G/A promoter SNP with colorectal cancer (CRC) susceptibility and development risk and also to evaluate the modifying effects of possible TNF-α-308G/A genotypes on different risk factors of CRC in ethnic population of Kashmir, India through a case–control setup. The genotype frequencies of TNF-α-308G/A promoter SNP were compared between 142 CRC patients and 184 individually matched healthy controls by using polymerase chain reaction and restriction fragment length polymorphism (PCR-RFLP) method. The associations between the TNF-α-308G/A SNP and CRC risk were examined through conditional logistic regression models adjusted for multiple possible confounding (third) variables. Further, the associations between this SNP and various clinico-pathological parameters, demographic variables and environmental factors within the case group subjects with regard to CRC risk were also evaluated. Results The association between the TNF-α-308G/A SNP and the modulation of risk of CRC was not found to be significant (p value = 0.156). The effect of less common TNF-α-308A allele on the risk of colorectal cancer was also not found to be significant (p value = 0.175). The variant genotype (AA) was nonexistent in the study population. Further, we found no significant effect modulation of CRC risk by wild and heterozygous TNF-α-308G/A SNP genotypes in presence of different possible risk factors (p > 0.05). We also found no significant association of TNF-α-308G/A SNP with the subsets of various characteristics of the case group subjects under study (p > 0.05). Conclusions This study indicates that there is no significant association between the TNF-α-308G/A promoter SNP and the risk of developing CRC in ethnic Kashmiri population. However, in order to substantiate our findings, this study needs to be replicated with bigger sample size and should involve other ethnically defined populations with high CRC risk.
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Affiliation(s)
- Mujeeb Zafar Banday
- Department of Biotechnology, University of Kashmir, Hazratbal, Srinagar, Kashmir, India
| | - Henah Mehraj Balkhi
- Department of Biotechnology, University of Kashmir, Hazratbal, Srinagar, Kashmir, India
| | - Zeenat Hamid
- Department of Biotechnology, University of Kashmir, Hazratbal, Srinagar, Kashmir, India
| | - Aga Syed Sameer
- Department of Basic Medical Sciences, College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Jeddah, Saudi Arabia
| | - Nissar A. Chowdri
- Department of Surgery, Sher-I-Kashmir Institute of Medical Sciences, Soura, Srinagar, Kashmir, India
| | - Ehtishamul Haq
- Department of Biotechnology, University of Kashmir, Hazratbal, Srinagar, Kashmir, India
- Corresponding author.
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Hamid MA, Moemen L, Labib H, Helmy H, Elsergany T. Risk of open angle glaucoma due to tumor necrosis factor alpha gene polymorphisms. Electron Physician 2016; 8:1978-83. [PMID: 27054008 PMCID: PMC4821314 DOI: 10.19082/1978] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Accepted: 01/20/2016] [Indexed: 01/19/2023] Open
Abstract
INTRODUCTION Axonal degeneration and retinal ganglion cell apoptosis in glaucoma is associated with tumor necrosis factor alpha (TNF-α), which is an important pro-inflammatory cytokine. The aim of this study was to determine the association between the risk of open angle glaucoma (OAG) in the Egyptian population and tumor necrosis factor alpha (TNF-α) gene polymorphisms. METHODS Sixty OAG patients and 26 healthy unrelated controls were used to analyze TNF-α polymorphism G-308A using polymerase chain reaction (PCR) and restriction fragment length polymorphism (RFLP). RESULTS the GG genotype was found at a higher frequency in the controls than in the patients, and the AA and GA genotypes were associated strongly with OAG. CONCLUSION In this study, we found that the TNF-α polymorphism G-308A was associated significantly with OAG in the Egyptian population. However, there is a need for population-based studies with large numbers of subjects. Also, long-term follow up is required to verify the association between TNF-α polymorphism G-308A and glaucoma susceptibility.
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Affiliation(s)
- Mona Abdel Hamid
- Medical Biochemistry Unit, Research Institute of Ophthalmology, Giza, Egypt
| | - Leqaa Moemen
- Medical Biochemistry Unit, Research Institute of Ophthalmology, Giza, Egypt
| | - Hany Labib
- Ophthalmology Department, Research Institute of Ophthalmology, Giza, Egypt
| | - Hazem Helmy
- Ophthalmology Department, Research Institute of Ophthalmology, Giza, Egypt
| | - Tarek Elsergany
- Clinical Pathology Unit, Research Institute of Ophthalmology, Giza, Egypt
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Li CI, Li TC, Liao LN, Liu CS, Yang CW, Lin CH, Hsiao JH, Meng NH, Lin WY, Wu FY, Lin CC. Joint effect of gene-physical activity and the interactions among CRP, TNF-α, and LTA polymorphisms on serum CRP, TNF-α levels, and handgrip strength in community-dwelling elders in Taiwan - TCHS-E. AGE (DORDRECHT, NETHERLANDS) 2016; 38:46. [PMID: 27056089 PMCID: PMC5005924 DOI: 10.1007/s11357-016-9909-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Accepted: 03/29/2016] [Indexed: 05/05/2023]
Abstract
This study assesses interactions of tumor necrosis factor α (TNF-α) gene polymorphisms with C-reactive protein (CRP) or lymphotoxin α (LTA) gene on serum CRP and TNF-α levels and handgrip strength. Eleven single nucleotide polymorphisms (SNPs), including rs2794520, rs1205, rs1130864, rs1800947, and rs3093059 in CRP; rs1799964, rs1800629, and rs3093662 in TNF-α; and rs2239704, rs909253, and rs1041981 in LTA, were genotyped in 472 unrelated elders (mean age 73.8 years). Among elders with TNF-α rs1799964 AA genotype, adjusted mean difference for handgrip strength decreased by -2.60 (-4.82, -0.38) and -2.51 kg (-4.75, -0.28) for LTA rs909253 and rs1041981 in women and by -2.39 kg (-3.98, -0.81) for CRP rs3093059 in men. Among elders with TNF-α rs1799964 AA genotype, adjusted mean ratios for hs-CRP levels increased by 2.32 (1.38, 3.90) and 2.27 (1.35, 3.84) for both CRP rs909253 and rs1041981 in women. The A-A-C LTA haplotype was associated with TNF-α levels that were 1.55 times higher than those of the C-G-A haplotype (P = 0.005). The joint effects of SNPs (the rs1800947 or rs3093059 of CRP, rs1799964 or rs1800629 of TNF-α, and rs909253 or rs1041981 of LTA) and physical inactivity appeared to have greater magnitude of decreased handgrip strength than main effects of these SNPs and physical inactivity. Our data showed that significant interactions of TNF-αrs1799964 and LTA rs909253 were observed. Moreover, joint effects of these CRP, TNF-α, and LTA risk alleles with physical inactivity in elders were observed, suggesting that physical activity may modulate effects of genotypes on handgrip strength.
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Affiliation(s)
- Chia-Ing Li
- School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan
| | - Tsai-Chung Li
- Graduate Institute of Biostatistics, College of Public Health, China Medical University, Taichung, Taiwan
- Department of Healthcare Administration, College of Medical and Health Sciences, Asia University, Taichung, Taiwan
| | - Li-Na Liao
- School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan
| | - Chiu-Shong Liu
- School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan
- Department of Family Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Chuan-Wei Yang
- Department of Medical Research, China Medical University Hospital, Taichung, Taiwan
- Ph.D. Program for Aging, College of Medicine, China Medical University, Taichung, Taiwan
| | - Chih-Hsueh Lin
- School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan
- Department of Family Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Jen-Hao Hsiao
- Bioinformatics and Biostatistics Core, Center of Genomic Medicine, National Taiwan University, Taipei, Taiwan
| | - Nai-Hsin Meng
- School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan
- Department of Physical Medicine and Rehabilitation, China Medical University Hospital, Taichung, Taiwan
| | - Wen-Yuan Lin
- School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan
- Department of Family Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Fang-Yang Wu
- Department of Public Health, College of Public Health, China Medical University, Taichung, Taiwan.
| | - Cheng-Chieh Lin
- School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan.
- Department of Family Medicine, China Medical University Hospital, Taichung, Taiwan.
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Cytokine gene polymorphism [tumor necrosis factor-alpha (–308), IL-10 (–1082), IL-6 (–174), IL-17F, 1RaVNTR] in pediatric patients with primary immune thrombocytopenia and response to different treatment modalities. Blood Coagul Fibrinolysis 2016; 27:313-23. [DOI: 10.1097/mbc.0000000000000431] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Pine SR, Mechanic LE, Enewold L, Bowman ED, Ryan BM, Cote ML, Wenzlaff AS, Loffredo CA, Olivo-Marston S, Chaturvedi A, Caporaso NE, Schwartz AG, Harris CC. Differential Serum Cytokine Levels and Risk of Lung Cancer Between African and European Americans. Cancer Epidemiol Biomarkers Prev 2015; 25:488-97. [PMID: 26711330 DOI: 10.1158/1055-9965.epi-15-0378] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Accepted: 12/18/2015] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND African Americans have a higher risk of developing lung cancer than European Americans. Previous studies suggested that certain circulating cytokines were associated with lung cancer. We hypothesized that variations in serum cytokine levels exist between African Americans and European Americans, and increased circulating cytokine levels contribute to lung cancer differently in the two races. METHODS Differences in 10 serum cytokine levels, IL1β, IL4, IL5, IL6, IL8, IL10, IL12, granulocyte macrophage colony-stimulating factor, IFNγ, and TNFα, between 170 African-American and 296 European-American controls from the National Cancer Institute-Maryland (NCI-MD) case-control study were assessed. Associations of the serum cytokine levels with lung cancer were analyzed. Statistically significant results were replicated in the prospective Prostate, Lung, Colorectal, and Ovarian Cancer Screening Trial and the Wayne State University Karmanos Cancer Institute case-control study. RESULTS Six cytokines, IL4, IL5, IL8, IL10, IFNγ, and TNFα, were significantly higher among European-American as compared with African-American controls. Elevated IL6 and IL8 levels were associated with lung cancer among both races in all three studies. Elevated IL1β, IL10, and TNFα levels were associated with lung cancer only among African Americans. The association between elevated TNFα levels and lung cancer among European Americans was significant after adjustment for additional factors. CONCLUSIONS Serum cytokine levels vary by race and might contribute to lung cancer differently between African Americans and European Americans. IMPACT Future work examining risk prediction models of lung cancer can measure circulating cytokines to accurately characterize risk within racial groups.
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Affiliation(s)
- Sharon R Pine
- Laboratory of Human Carcinogenesis, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland. Rutgers Cancer Institute of New Jersey, Robert Wood Johnson Medical School, Rutgers, The State University of New Jersey, New Brunswick, New Jersey.
| | - Leah E Mechanic
- Laboratory of Human Carcinogenesis, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland. Epidemiology and Genomics Research Program, Host Factors Branch, Division of Cancer Control and Population Sciences, National Cancer Institute, Bethesda, Maryland
| | - Lindsey Enewold
- Department of Epidemiology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland; and Health Services and Economics Branch of the Applied Research Program, Division of Cancer Control and Population Sciences, National Cancer Institute, Bethesda, Maryland
| | - Elise D Bowman
- Laboratory of Human Carcinogenesis, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Bríd M Ryan
- Laboratory of Human Carcinogenesis, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | - Michele L Cote
- Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, Michigan
| | - Angela S Wenzlaff
- Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, Michigan
| | - Christopher A Loffredo
- Oncology and Biostatistics, Cancer Genetics and Epidemiology Program, Georgetown University, Washington, DC
| | | | - Anil Chaturvedi
- Infections and Immunoepidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, Maryland
| | - Neil E Caporaso
- Genetic Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, Maryland
| | - Ann G Schwartz
- Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, Michigan
| | - Curtis C Harris
- Laboratory of Human Carcinogenesis, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland.
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Tarnowski M, Paradowska-Gorycka A, Dąbrowska-Zamojcin E, Czerewaty M, Słuczanowska-Głąbowska S, Pawlik A. The effect of gene polymorphisms on patient responses to rheumatoid arthritis therapy. Expert Opin Drug Metab Toxicol 2015; 12:41-55. [PMID: 26609565 DOI: 10.1517/17425255.2016.1121233] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
INTRODUCTION Rheumatoid arthritis (RA) is a systemic disease leading to joint destruction. The therapy of RA is mainly based on disease-modifying anti-rheumatic drugs (DMARDs) and biological drugs. The response to treatment is different among patients. Therefore, we have searched for factors that may predict the efficacy and toxicity during therapy in individual patients. AREAS COVERED This review presents the role of genetic polymorphisms as predictors of the efficacy and toxicity during the therapy of RA patients with DMARDs (methotrexate, leflunomide, sulfasalazine) and biological drugs (anti-TNF-alpha antagonists, Tocilizumab, Rituximab). EXPERT OPINION Despite studies having shown an association between genetic polymorphisms and response to therapy in RA patients, the majority of these findings are still inconclusive and inconsistent. We are still far from applying pharmacogenetic tests in routine clinical practice that can predict the outcome of treatment. Several factors, such as small sample size with low statistical power, variability in the outcome definitions and the heterogeneity of the cohorts, limited number of tested single nucleotide polymorphisms (SNPs), small effect for the selected variant, and a lack of consideration of epigenetic factors, may contribute to the inconsistency observed and may lead to limited success in personalizing therapy.
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Affiliation(s)
- Maciej Tarnowski
- a Department of Physiology , Pomeranian Medical University , 70-111 Szczecin , Poland
| | - Agnieszka Paradowska-Gorycka
- b Department of Biochemistry and Molecular Biology , National Institute of Geriatrics, Rheumatology and Rehabilitation , 02-637 Warszawa , Poland
| | | | - Michal Czerewaty
- a Department of Physiology , Pomeranian Medical University , 70-111 Szczecin , Poland
| | | | - Andrzej Pawlik
- a Department of Physiology , Pomeranian Medical University , 70-111 Szczecin , Poland
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Zagozda M, Sarnecka A, Staszczak Z, Gałkowska H, Andziak P, Olszewski WL, Durlik M. Genetic Polymorphism and Messenger Ribonucleic Acid Concentrations of TNFα and TGFβ Genes in Patients with Chronic Lower Limb Infections. Surg Infect (Larchmt) 2015; 16:822-8. [DOI: 10.1089/sur.2014.205] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Affiliation(s)
- Malgorzata Zagozda
- Department of Surgical Research & Transplantology, Medical Research Centre, Polish Academy of Sciences, Warsaw, Poland
- Central Clinical Hospital, Ministry of Internal Affairs, Warsaw, Poland
| | - Agnieszka Sarnecka
- Department of Surgical Research & Transplantology, Medical Research Centre, Polish Academy of Sciences, Warsaw, Poland
- Central Clinical Hospital, Ministry of Internal Affairs, Warsaw, Poland
| | - Zuzanna Staszczak
- Department of Surgical Research & Transplantology, Medical Research Centre, Polish Academy of Sciences, Warsaw, Poland
- College of Inter-Faculty Individual Studies in Mathematics and Natural Sciences, Warsaw University, Warsaw, Poland
| | - Hanna Gałkowska
- Department of Surgical Research & Transplantology, Medical Research Centre, Polish Academy of Sciences, Warsaw, Poland
| | - Piotr Andziak
- Central Clinical Hospital, Ministry of Internal Affairs, Warsaw, Poland
| | - Waldemar L. Olszewski
- Department of Surgical Research & Transplantology, Medical Research Centre, Polish Academy of Sciences, Warsaw, Poland
- Central Clinical Hospital, Ministry of Internal Affairs, Warsaw, Poland
- Department of Human Epigenetics, Medical Research Centre, Polish Academy of Sciences, Warsaw, Poland
| | - Marek Durlik
- Department of Surgical Research & Transplantology, Medical Research Centre, Polish Academy of Sciences, Warsaw, Poland
- Central Clinical Hospital, Ministry of Internal Affairs, Warsaw, Poland
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Cardili RN, Deghaide NS, Mendes-Junior CT, Donadi EA, Souza CS. HLA-C and TNF gene polymorphisms are associated with psoriasis in Brazilian patients. Int J Dermatol 2015; 55:e16-22. [PMID: 26470763 DOI: 10.1111/ijd.12894] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2014] [Revised: 09/21/2014] [Accepted: 10/27/2014] [Indexed: 02/02/2023]
Abstract
BACKGROUND Polymorphisms at the human leukocyte antigens (HLA-C) and tumor necrosis factor (TNF) genes have been associated with susceptibility to psoriasis in several worldwide populations. In this study, HLA-C and TNF (-238/-308) polymorphisms were performed in 125 Brazilian patients and 202 healthy controls. METHODS HLA-C and TNF promoter region alleles were typed by polymerase chain reaction using sequence-specific primer-polymerase chain reaction. RESULTS The presence of HLA-C*06 was associated with psoriasis onset, particularly in younger patients, being more frequent for patients with disease onset before the age of 20 years (P = 0.03), 25 years (P = 0.01), or 30 years (P = 0.03). No association between HLA-C*06 and psoriasis was observed for patients older than 35 years. Susceptibility to psoriatic arthritis was associated with the TNF -238 G/A genotype (P = 0.02). The TNF -308A allele was overrepresented in patients (P = 0.0061), and the TNF -308 G/A genotype was increased in generalized forms (erythrodermic and generalized pustular psoriasis) compared to plaque psoriasis (P < 0.001). The TNF -238A/HLA-C*06 haplotype was overrepresented in patients (P = 0.025), while the TNF -238G/HLA-C*15 haplotype was increased in controls (P = 0.037). CONCLUSIONS The strong association of HLA-C*06 allele with disease susceptibility, particularly in early onset psoriasis, indicates that younger ages could be considered to stratify psoriasis into early and late types. TNF -308 polymorphisms can be associated with psoriasis susceptibility and severity. Potential genetic markers of psoriasis in populations with a complex mixture of ethnicities should be investigated.
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Affiliation(s)
- Renata N Cardili
- Division of Dermatology, Internal Medicine Department, School of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Neifi S Deghaide
- Division of Immunology, Internal Medicine Department, School of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Celso T Mendes-Junior
- Chemistry Department, School of Philosophy, Sciences and Letters of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Eduardo A Donadi
- Division of Immunology, Internal Medicine Department, School of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - Cacilda S Souza
- Division of Dermatology, Internal Medicine Department, School of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
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Aceti A, Gianserra L, Lambiase L, Pennica A, Teti E. Pharmacogenetics as a tool to tailor antiretroviral therapy: A review. World J Virol 2015; 4:198-208. [PMID: 26279982 PMCID: PMC4534812 DOI: 10.5501/wjv.v4.i3.198] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2014] [Revised: 01/20/2015] [Accepted: 07/27/2015] [Indexed: 02/05/2023] Open
Abstract
Highly active antiretroviral therapy (HAART) has substantially changed human immunodeficiency virus (HIV) infection from an inexorably fatal condition into a chronic disease with a longer life expectancy. This means that HIV patients should receive antiretroviral drugs lifelong, and the problems concerning with a chronic treatment (tolerability, side effects, adherence to treatment) have now become dominant. In this context, strategies for the treatment personalization have taken a central role in optimizing the therapeutic response and prevention of adverse drug reactions. In this setting, the study of pharmacogenetics features could be a very useful tool in clinical practice; moreover, nowadays the study of genetic profiles allows optimizations in the therapeutic management of People Living With HIV (PLWH) through the use of test introduced into clinical practice and approved by international guidelines for the adverse effects prevention such as the genetic test HLA-B*5701 to detect hypersensitivity to Abacavir. For other tests further studies are needed: CYP2B6 516 G > T testing may be able to identify patients at higher risk of Central Nervous System side effects following standard dosing of Efavirenz, UGT1A1*28 testing before initiation of antiretroviral therapy containing Atazanavir may aid in identifying individuals at risk of hyperbilirubinaemia. Pharmacogenetics represents a research area with great growth potential which may be useful to guide the rational use of antiretrovirals.
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Tumor necrosis factor-α -308G/A gene polymorphism in Egyptian children with immune thrombocytopenic purpura. Blood Coagul Fibrinolysis 2015; 25:458-63. [PMID: 24509339 DOI: 10.1097/mbc.0000000000000089] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Immune thrombocytopenic purpura (ITP) is an autoimmune disease characterized by increased platelet destruction. Although the cause of ITP remains unclear, it is accepted that both environmental and genetic factors play an important role in the development of the disease. Children with ITP have a T-helper 1-type cytokine pattern with elevated levels of tumor necrosis factor-alpha (TNF-α) as in most autoimmune diseases. Researchers have shown that polymorphism in the TNF-α gene at position -308 affects gene transcriptions with increased TNF-α production. The current case-control study aimed at detecting the frequency of TNF-α -308G/A gene polymorphism as genetic markers in Egyptian children with ITP, and to clear out their possible role in choosing the treatment protocols of therapy, using PCR restriction fragment length polymorphism assay. Ninety-two ITP patients and 100 age and sex-matched healthy controls were recruited in the study. The results obtained revealed that the frequency of TNF-α -308A/A homotype in ITP patients was significantly higher than that of the controls, and conferred almost six-fold increased risk of ITP acquisition. The polymorphic A allele frequency was significantly higher in ITP patients than in the controls, conferring almost two-fold increased ITP risk. In conclusion, our study suggests the possibility that TNF-α -308 gene polymorphism may contribute to the susceptibility of childhood ITP in Egyptian children.
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Satterfield BC, Wisor JP, Field SA, Schmidt MA, Van Dongen HPA. TNFα G308A polymorphism is associated with resilience to sleep deprivation-induced psychomotor vigilance performance impairment in healthy young adults. Brain Behav Immun 2015; 47:66-74. [PMID: 25542735 PMCID: PMC4467999 DOI: 10.1016/j.bbi.2014.12.009] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Revised: 12/02/2014] [Accepted: 12/05/2014] [Indexed: 01/25/2023] Open
Abstract
Cytokines such as TNFα play an integral role in sleep/wake regulation and have recently been hypothesized to be involved in cognitive impairment due to sleep deprivation. We examined the effect of a guanine to adenine substitution at position 308 in the TNFα gene (TNFα G308A) on psychomotor vigilance performance impairment during total sleep deprivation. A total of 88 healthy women and men (ages 22-40) participated in one of five laboratory total sleep deprivation experiments. Performance on a psychomotor vigilance test (PVT) was measured every 2-3h. The TNFα 308A allele, which is less common than the 308G allele, was associated with greater resilience to psychomotor vigilance performance impairment during total sleep deprivation (regardless of time of day), and also provided a small performance benefit at baseline. The effect of genotype on resilience persisted when controlling for between-subjects differences in age, gender, race/ethnicity, and baseline sleep duration. The TNFα G308A polymorphism predicted less than 10% of the overall between-subjects variance in performance impairment during sleep deprivation. Nonetheless, the differential effect of the polymorphism at the peak of performance impairment was more than 50% of median performance impairment at that time, which is sizeable compared to the effects of other genotypes reported in the literature. Our findings provided evidence for a role of TNFα in the effects of sleep deprivation on psychomotor vigilance performance. Furthermore, the TNFα G308A polymorphism may have predictive potential in a biomarker panel for the assessment of resilience to psychomotor vigilance performance impairment due to sleep deprivation.
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Affiliation(s)
- Brieann C Satterfield
- Sleep and Performance Research Center, Washington State University, Spokane, WA, USA; Graduate Program in Neuroscience, Washington State University, Pullman, WA, USA
| | - Jonathan P Wisor
- Sleep and Performance Research Center, Washington State University, Spokane, WA, USA; College of Medical Sciences, Washington State University, Spokane, WA, USA.
| | - Stephanie A Field
- Internal Medicine Residency, University of Washington, Seattle, WA, USA
| | - Michelle A Schmidt
- Sleep and Performance Research Center, Washington State University, Spokane, WA, USA; College of Medical Sciences, Washington State University, Spokane, WA, USA
| | - Hans P A Van Dongen
- Sleep and Performance Research Center, Washington State University, Spokane, WA, USA; College of Medical Sciences, Washington State University, Spokane, WA, USA
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Zare-Shahabadi A, Ashrafi MR, Shahrokhi A, Soltani S, Zoghi S, Soleimani F, Vameghi R, Badv RS, Rezaei N. Single nucleotide polymorphisms of TNF-Α gene in febrile seizures. J Neurol Sci 2015; 356:153-6. [PMID: 26119396 DOI: 10.1016/j.jns.2015.06.039] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Revised: 06/20/2015] [Accepted: 06/22/2015] [Indexed: 11/17/2022]
Abstract
Febrile seizures (FS) is the most common seizure disorder during childhood. This study was performed in 78 patients with FS and 137 control subjects to assess polymorphisms of the TNF-α gene at positions -308 and -238, using the polymerase chain reaction and the sequence specific primers method. The highest positive allelic association that made the patients susceptible to FS was seen for TNF-α -238/G (p<0.0001). The GG genotype at TNF-α -238 was significantly higher in the patients with FS, compared to the controls (p=0.0001). Also, GA genotype at the same position was significantly lower in patients than in controls (P=0.0001). The GG haplotype had a significant positive association at TNF-α (308, 238) while GA haplotype showed a negative association (P<0.001). Our data support the idea that TNF-α single-nucleotide polymorphisms play a role in the pathogenesis of FS.
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Affiliation(s)
- Ameneh Zare-Shahabadi
- Molecular Immunology Research Center and Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran; Universal Scientific Education and Research Network (USERN), Tehran, Iran
| | - Mahmoud Reza Ashrafi
- Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Amin Shahrokhi
- Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran; Pediatric Neurorehabilitation Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Samaneh Soltani
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Samaneh Zoghi
- Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Farin Soleimani
- Pediatric Neurorehabilitation Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Roshanak Vameghi
- Pediatric Neurorehabilitation Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Reza Shervin Badv
- Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Nima Rezaei
- Molecular Immunology Research Center and Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran; Research Center for Immunodeficiencies, Pediatrics Center of Excellence, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran; Universal Scientific Education and Research Network (USERN), Tehran, Iran.
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Tavares MCM, de Lima Júnior SF, Coelho AVC, Marques TRNM, de Araújo DHT, Heráclio SDA, Amorim MMR, de Souza PRE, Crovella S. Tumor necrosis factor (TNF) alpha and interleukin (IL) 18 genes polymorphisms are correlated with susceptibility to HPV infection in patients with and without cervical intraepithelial lesion. Ann Hum Biol 2015; 43:261-8. [DOI: 10.3109/03014460.2014.1001436] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
| | | | - Antonio V. C. Coelho
- Department of Genetics, Universidade Federal de Pernambuco (UFPE), Recife, PE, Brazil,
| | | | | | | | - Melânia M. Ramos Amorim
- Maternal and Child Healthcare Departament, Instituto de Medicina Integral Prof. Fernando Figueira (IMIP), Recife, PE, Brazil, and
| | | | - Sergio Crovella
- Department of Genetics, Universidade Federal de Pernambuco (UFPE), Recife, PE, Brazil,
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64
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Chen W, Zhu H, Yu L, Lu Z, Yao Z, Xiao Y. TNF-α -308 G>A polymorphism and risk of bone marrow failure syndrome: A meta-analysis. Gene 2015; 565:1-8. [PMID: 25895473 DOI: 10.1016/j.gene.2015.04.038] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Revised: 03/17/2015] [Accepted: 04/09/2015] [Indexed: 11/19/2022]
Abstract
The influence of the TNF-α -308 G>A polymorphism on bone marrow failure syndrome susceptibility is unclear. We have conducted a meta-analysis of all relevant published studies. We searched PubMed, Chinese Biomedical Literature and China National Knowledge Infrastructure databases up to February 2015. Odds ratios (ORs) with 95% confidence intervals (CIs) were applied to assess the strength of associations. Eleven case-control studies with a total sample size of 909 cases and 1803 controls were eligible to assess the association between the TNF-α -308 G>A polymorphism and susceptibility to bone marrow failure syndrome. Overall, the TNF-α -308 G>A polymorphism was significantly associated with an increased risk of bone marrow failure syndrome in any genetic model. In stratified analysis by disease type, there was a significant association between the TNF-α -308 G>A polymorphism and increased risk of aplastic anemia but no significant association with myelodysplastic syndrome (AA vs. GG: OR=2.23, 95% CI=1.23-4.05, P=0.006; recessive model: OR=3.52, 95% CI=1.30-9.53, P=0.010). In subgroup analysis by ethnicity, there were significant associations between the TNF-α -308 G>A polymorphism and increased risk of bone marrow failure syndrome for Caucasians in two models, but not in Asian populations (AA vs. GG: OR=2.66, 95% CI=1.36-5.21, P=0.003; recessive model: OR=2.68, 95% CI=1.37-5.24, P=0.002). In conclusion, our meta-analysis suggests that the TNF-α -308 G>A polymorphism may contribute to the risk of bone marrow failure syndrome, particularly among Caucasian and aplastic anemia patients. Further investigations are needed to clarify the role of the TNF-α -308 G>A polymorphism in bone marrow failure syndrome.
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Affiliation(s)
- Wancheng Chen
- Department of Hematology, First School of Clinical Medicine, Southern Medical University, Guangzhou 510515, China; Department of Hematology, Guangzhou General Hospital of Guangzhou Military Command, Guangzhou 510010, China
| | - Haili Zhu
- Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Lili Yu
- Cancer Research Institute, Southern Medical University, Guangzhou 510515, China
| | - Ziyuan Lu
- Department of Hematology, First School of Clinical Medicine, Southern Medical University, Guangzhou 510515, China
| | - Zhuoxin Yao
- Department of Hematology, First School of Clinical Medicine, Southern Medical University, Guangzhou 510515, China; Department of Hematology, Guangzhou General Hospital of Guangzhou Military Command, Guangzhou 510010, China
| | - Yang Xiao
- Department of Hematology, Guangzhou General Hospital of Guangzhou Military Command, Guangzhou 510010, China.
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Ahir S, Mania-Pramanik J, Chavan V, Kerkar S, Samant-Mavani P, Nanavati R, Mehta P. Genetic variation in the promoter region of pro-inflammatory cytokine TNF-α in perinatal HIV transmission from Mumbai, India. Cytokine 2014; 72:25-30. [PMID: 25544182 DOI: 10.1016/j.cyto.2014.11.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Revised: 11/14/2014] [Accepted: 11/17/2014] [Indexed: 11/24/2022]
Abstract
Various host factors such as cytokines and HLA, regulate the immune system and influence HIV transmission to infants exposed to HIV-1 through their mothers. Tumor Necrosis Factor Alpha (TNF-α) is a strong pro-inflammatory mediator and thought to influence vulnerability to HIV infection (and/or) transmission. Polymorphisms in regulatory regions are known to govern the production of this cytokine. However, the association of these variations in perinatal HIV transmission is yet to be established. Present study aimed to evaluate if polymorphisms in promoter region of TNF-α gene is associated with perinatal HIV transmission. With informed consent from parents, infants' blood was collected for HIV screening and SNPs analysis at 2 loci: TNF (rs1800629) and TNF (rs361525) using PCR-SSP method. HIV positive (n = 27) and negative (n = 54) children at the end of 18th month follow up were considered for this study. GG genotype, responsible for low expression of TNF (rs1800629) was significantly (p = 0.005) higher in uninfected children, while higher GA genotype frequency was observed in infected children. The 'G' allele frequency was significantly higher in negative children (p = 0.016). We conclude that genotypic variants of TNF (rs1800629) are a likely contributor to perinatal HIV transmission. This provides new insights in markers of differential susceptibility to perinatal HIV transmission.
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Affiliation(s)
- Swati Ahir
- Department of Infectious Diseases Biology, National Institute for Research in Reproductive Health (DHR/ICMR), J.M. Street, Parel, Mumbai 400 012, Maharashtra, India
| | - Jayanti Mania-Pramanik
- Department of Infectious Diseases Biology, National Institute for Research in Reproductive Health (DHR/ICMR), J.M. Street, Parel, Mumbai 400 012, Maharashtra, India.
| | - Vijay Chavan
- Department of Infectious Diseases Biology, National Institute for Research in Reproductive Health (DHR/ICMR), J.M. Street, Parel, Mumbai 400 012, Maharashtra, India
| | - Shilpa Kerkar
- Department of Infectious Diseases Biology, National Institute for Research in Reproductive Health (DHR/ICMR), J.M. Street, Parel, Mumbai 400 012, Maharashtra, India
| | - Padmaja Samant-Mavani
- Department of Obstetrics and Gynaecology, Seth G.S. Medical College & K.E.M. Hospital, J.M. Street, Parel, Mumbai 400 012, Maharashtra, India
| | - Ruchi Nanavati
- Department of Neonatology, Seth G.S. Medical College & K.E.M. Hospital, J.M. Street, Parel, Mumbai 400 012, Maharashtra, India
| | - Preeti Mehta
- Department of Microbiology, Seth G.S. Medical College & K.E.M. Hospital, J.M. Street, Parel, Mumbai 400 012, Maharashtra, India
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66
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Hu Q, Lou GG, Liu YC, Qian L, Lv BD. The Tumor Necrosis Factor-α-308 and -238 Polymorphisms and Risk of Hepatocellular Carcinoma for Asian Populations: A Meta-Analysis. Curr Ther Res Clin Exp 2014; 76:70-5. [PMID: 25352937 PMCID: PMC4209508 DOI: 10.1016/j.curtheres.2014.04.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/12/2014] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Tumor necrosis factor-α (TNF-α) has been suggested to play a very important role in the development and progression of hepatocellular carcinoma (HCC). Many studies have identified the associations of TNF-α-308 and -238 polymorphisms with HCC risk, but the results remain controversial. AIM We conducted this meta-analysis to evaluate the associations between TNF-α-308 and -238 polymorphisms and HCC susceptibility. METHODS PubMed, Embase, and China National Knowledge Infrastructure electronic databases were searched for all articles on associations between TNF-α-308 and -238 polymorphisms and HCC risk in Asians through September 30, 2013. Odds ratios (ORs) and their 95% CIs were calculated to assess the strength of this association. RESULTS A total of 17 case-control studies were identified in our meta-analysis. For the TNF-α-308 G/A polymorphism, 14 studies containing 3154 cases and 3767 controls were included. Overall, the frequency of the A allele was higher in patients with HCC than in the healthy controls (10.2% vs 7.5%), and the A allele and allele carrier were significantly associated with increased risk of HCC in a random effects model (A vs G: OR = 1.57; 95% CI, 1.22-2.01; P = 0.0004; AA + AG vs GG: OR = 1.62; 95% CI, 1.18-2.22; P = 0.003). For the TNF-α-238 polymorphism, 10 research articles were identified. No association was found between the TNF-α-238 G/A polymorphism and risk of HCC in any genetic models (P > 0.05). The sensitivity analysis further strengthened the overall correlations. CONCLUSIONS Our meta-analysis proved that the TNF-α-308 G/A polymorphism is associated with increased susceptibility to HCC. However, the TNF-α-238 G/A polymorphism is not significantly associated with risk of HCC in Asian populations. Further studies with large sample sizes are needed to confirm these associations among other populations.
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Affiliation(s)
- Qing Hu
- The Second Affiliated Hospital, Zhejiang Traditional Chinese Medical University, Hangzhou, China
| | - Guo-Guang Lou
- The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Ying-Chao Liu
- The Second Affiliated Hospital, Zhejiang Traditional Chinese Medical University, Hangzhou, China
| | - Le Qian
- The Second Affiliated Hospital, Zhejiang Traditional Chinese Medical University, Hangzhou, China
| | - Bo-Dong Lv
- The Second Affiliated Hospital, Zhejiang Traditional Chinese Medical University, Hangzhou, China
- Address correspondence to: Bo-Dong Lv, PhD, The Second Affiliated Hospital, University of Zhejiang Traditional Chinese Medicine, 548 Bingwen Rd, Bingjiang District, Hangzhou, 310005, China.
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67
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TNF-α promoter single nucleotide polymorphisms and haplotypes associate with susceptibility of immune thrombocytopenia in Chinese adults. Hum Immunol 2014; 75:980-5. [PMID: 25158149 DOI: 10.1016/j.humimm.2014.08.197] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2014] [Revised: 06/12/2014] [Accepted: 08/14/2014] [Indexed: 10/25/2022]
Abstract
OBJECTIVE Tumor necrosis factor-alpha (TNF-α) participates as a candidate susceptibility factor for immune thrombocytopenia (ITP). This study attempted to investigate the association between five single nucleotide polymorphisms (SNPs) spanning the TNF-α promoter and the susceptibility of primary ITP in Chinese Han adults. METHODS In 215 adult primary ITP patients and 206 healthy controls, SNPs were detected by PCR-RFLP and PCR-SSP. The χ(2) test or fisher's exact test was used to compare frequencies of genotypes and alleles between patients and controls. Haplotypes were analyzed with the SHEsis online program. TNF-α, IFN-γ and Galectin-9 mRNA of 35 newly diagnosed adult ITP patients and 35 healthy controls were detected by qRT-PCR. RESULTS The haplotype GGC (-238G/-308G/-857C) of TNF-α promoter was significantly associated with a decreased susceptibility of primary ITP, especially in males. The relative levels of mRNA expression of TNF-α, IFN-γ and Gal-9 in adult active primary ITP patients was significantly up-regulated compared with patients in remission and controls. CONCLUSIONS This study represented the first report that the haplotype GGC of TNF-α was differentially associated with the susceptibility of primary ITP in Chinese Han adults. The up-regulation of TNF-α, IFN-γ and Galectin-9 was significantly correlated with active primary ITP in adult patients.
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Zubor P, Dokus K, Zigo I, Skerenova M, Pullmann R, Danko J. TNF α G308A gene polymorphism has an impact on renal function, microvascular permeability, organ involvement and severity of preeclampsia. Gynecol Obstet Invest 2014; 78:150-61. [PMID: 25059926 DOI: 10.1159/000364865] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2013] [Accepted: 05/27/2014] [Indexed: 11/19/2022]
Abstract
BACKGROUND/AIMS Preeclampsia (PE) is a life-threatening complication of pregnancy that is associated with a high rate of maternal and perinatal morbidity and/or mortality worldwide. If untreated, it can progress to eclampsia, which can result in the death of the mother, the fetus or both. The etiology of PE is still uncertain; however, recently the role of the immune system has gained in importance. The role of tumor necrosis factor-α (TNF-α), a cytokine involved in inflammation processes, has been widely investigated in obstetric disorders. The aims of the present study were to investigate the effect of TNF-α gene G308A (rs1800629) polymorphism on disease risk, renal function, microvascular permeability, endothelial cell dysfunction and organ involvement in women with PE. METHODS Initially, 102 3rd-trimester pregnant women (preeclamptic cases and healthy controls) with singleton pregnancy were invited for participation, of which 76 were genotyped for TNF-α G308A polymorphism and evaluated for plasma levels of soluble vascular cell adhesion molecule-1 (sVCAM-1), fibronectin and TNF-α, which were tested for correlations with the profile of PE. The odds ratio (OR) and 95% confidence intervals obtained from unconditional logistic regression were used to test the association between the TNF-α polymorphism and PE risk. For continuous variables, we applied Student's t test and, for categorical variables, the Pearson χ(2) or Fisher's exact test. The two-way ANOVA test with Bonferroni correction was used in multivariate analyses. RESULTS The A allele was more frequent in cases than controls (22.4 vs. 13.2%), which increased disease risk (OR = 2.73). Maternal serum levels of TNF-α, sVCAM-1 and fibronectin were significantly increased in cases (855.8 ± 385.1 pg/ml, 1,243 ± 671 ng/ml, 0.308 ± 0.231 g/l, respectively) compared to controls (301.1 ± 156.1 pg/ml, 651 ± 250 ng/ml, 0.218 ± 0.101 g/l, respectively; p < 0.0001, p < 0.0001 and p = 0.031, respectively), and these levels showed an increasing trend with the mutant allele genotype. Moderate and severe proteinuria was higher in rs1800629 allele A subjects compared to G/G carriers (53.8 vs. 14.3% (p < 0.05) and 13.0 vs. 4.7% (p < 0.01), respectively). The adverse effect of rs1800629 allele A on renal function was confirmed by increased plasma creatine levels, urinary protein excretion and lower tubular resorption rate in preeclamptic patients. Moreover, rs1800629 allele A preeclamptic carriers showed higher serum levels of fibronectin and sVCAM-1 compared to G/G homozygotes. CONCLUSION This study reveals a possible association between clinical and laboratory manifestations of PE and the TNF-α gene G308A (rs1800629) polymorphism.
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Affiliation(s)
- Pavol Zubor
- Department of Obstetrics and Gynecology, Jessenius Faculty of Medicine, Comenius University, Martin, Slovak Republic
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Bazzaz JT, Amoli MM, Taheri Z, Larijani B, Pravica V, Hutchinson IV. TNF-α and IFN-γ gene variation and genetic susceptibility to type 1 diabetes and its microangiopathic complications. J Diabetes Metab Disord 2014; 13:46. [PMID: 24693923 PMCID: PMC4000155 DOI: 10.1186/2251-6581-13-46] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2012] [Accepted: 03/11/2014] [Indexed: 12/28/2022]
Abstract
Background TNF-α has accelerating role in development of type 1 diabetes. Although an immunosupressor function and leading protecting role in T1DM also has been claimed for this pro-inflammatory cytokine. Over-expression of pro-inflammatory and type 1 cytokines (Th1, like IFN-γ) drive insulitis toward the destructive form that leads to type 1 diabetes (T1DM). Among type 1 cytokines only IFN-γ has been detectable in the islet β cells. In deletion studies IFN-γ was also the only Th1 cytokine for which its ablation or blockade caused delayed or decreased incidence of T1DM. Methods Functional polymorphisms of TNF-α at position -308*G/A and at position +874*T/A of IFN-γ gene were employed as markers and the comparative distribution of derived genotypes/alleles were assessed in 248 British Caucasian T1DM patients and 118 healthy controls. Results There was no significant association between IFN-γ gene polymorphism and T1DM or the diabetic complication triad. There was a marginal association between TNF-α –308*G/A polymorphism in nephropaths (vs healthy controls) (p = 0.06), which its insignificancy may be due to survivor factor. No significant association was evident between the genotype/allele of the applied marker and T1DM or diabetic complication triad. Conclusion Our results are in contrast with previous reports suggesting that these polymorphisms are not related to T1DM. This study also underlines the importance of replication of association studies to confirm the previous interpretation.
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Affiliation(s)
- Javad Tavakkoly Bazzaz
- Department of Medical Genetics, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahsa M Amoli
- Endocrinology and Metabolism Research Centre, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Taheri
- Endocrinology and Metabolism Research Centre, Tehran University of Medical Sciences, Tehran, Iran
| | - Bagher Larijani
- Endocrinology and Metabolism Research Centre, Tehran University of Medical Sciences, Tehran, Iran
| | - Vera Pravica
- School of Pharmacy, University of Southern California (USC), Los Angeles, USA
| | - Ian V Hutchinson
- School of Pharmacy, University of Southern California (USC), Los Angeles, USA
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Haskelberg H, Cordery DV, Amin J, Kelleher AD, Cooper DA, Emery S. HLA alleles association with changes in bone mineral density in HIV-1-infected adults changing treatment to tenofovir-emtricitabine or abacavir-lamivudine. PLoS One 2014; 9:e93333. [PMID: 24681993 PMCID: PMC3969319 DOI: 10.1371/journal.pone.0093333] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2013] [Accepted: 03/03/2014] [Indexed: 01/11/2023] Open
Abstract
Background There are limited data regarding the influence of human leukocyte antigen (HLA) polymorphisms on reduced bone mineral density (BMD). We investigated the relationship between HLA supertypes and BMD in HIV-infected adults changing their existing treatment to tenofovir-emtricitabine (TDF-FTC) or abacavir-lamivudine (ABC-3TC) in the STEAL study. Methods Lumbar spine and right hip BMD were measured by Dual-energy X-ray absorptiometry (DXA). HLA genotypes at the 2-digit level were classified into class I and II supertypes. Student's t-tests were used to test the association between HLA supertypes and changes in hip and spine BMD over 96 weeks for the whole cohort and stratified by randomised groups. The relationship between HLA supertypes and BMD was also assessed in the subgroup of participants that were naïve to both ABC and TDF at study entry. Results Class II supertypes were mainly associated with hip BMD change. Overall, compared to participants not carrying HLA-DQ3, participants expressing DQ3 had less bone loss over 96 weeks at both the hip and spine (hip: 0.003 vs. −0.006 g/cm2, 95%CI 0.002 to 0.017, p = 0.016; spine: 0.006 vs. −0.006 g/cm2, 95%CI 0.001 to 0.023, p = 0.041). In participants that were naïve to both ABC and TDF at baseline and randomised to TDF-FTC, DQ3 was significantly associated with less bone loss compared with those not carrying DQ3 (hip: 0.001 vs. −0.032 g/cm2; diff 0.033; 95%CI 0.017 to 0.049; p<0.001; spine: 0.007 vs. −0.023 g/cm2; diff 0.035; 95%CI 0.014 to 0.056; p = 0.001). Conclusions In this cohort of HIV-infected adults, there was an association between bone status and HLA supertypes, particularly HLA-DQ3. Trial Registration Clinicaltrials.gov NCT00192634
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Affiliation(s)
- Hila Haskelberg
- The Kirby Institute, University of New South Wales, Sydney, Australia
- * E-mail:
| | - Damien V. Cordery
- The Kirby Institute, University of New South Wales, Sydney, Australia
| | - Janaki Amin
- The Kirby Institute, University of New South Wales, Sydney, Australia
| | - Anthony D. Kelleher
- The Kirby Institute, University of New South Wales, Sydney, Australia
- St Vincent's Centre for Applied Medical Research, Darlinghurst, New South Wales, Australia
| | - David A. Cooper
- The Kirby Institute, University of New South Wales, Sydney, Australia
- St Vincent's Centre for Applied Medical Research, Darlinghurst, New South Wales, Australia
| | - Sean Emery
- The Kirby Institute, University of New South Wales, Sydney, Australia
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Tumor necrosis factor-alpha gene promoter region polymorphism and the risk of coronary heart disease. ScientificWorldJournal 2013; 2013:203492. [PMID: 24381514 PMCID: PMC3872015 DOI: 10.1155/2013/203492] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2013] [Accepted: 09/29/2013] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Tumor necrosis factor-alpha (TNF- α ) gene polymorphisms have been implicated in the manifestation of atherosclerosis. Controversy exists regarding the link between the cytokine's variant genotype and CHD among different ethnic groups. There have been fewer studies on the TNF- α gene -1031T>C and -863C>A polymorphisms in relation to CHD. Therefore, the current study was designed to investigate the association of the TNF- α gene -1031T>C and -863C>A polymorphisms with CHD in a Pakistani population. METHODS Patients with CHD (n = 310) and healthy individuals (n = 310) were enrolled in this study. Genotyping was performed by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). RESULTS A significant difference was observed in the -863C>A polymorphism between patients with CHD and control subjects (P < 0.0001). CHD risk was positively associated with the variant allele -863A (P < 0.0001) in the study subjects. There was no significant link between the -1031T>C polymorphism and CHD risk in the study population. Haplotypes A-T and A-C of the TNF-alpha gene loci at -863 and -1031 showed higher frequency in the patient group compared with controls (P < 0.05). CONCLUSION The TNF- α -863C>A gene polymorphism was associated with the pathogenesis of CHD while the -1031T>C polymorphism did not show any link with the disease in a Pakistani population.
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Shukla KK, Agnihotri S, Gupta A, Mahdi AA, Mohamed EA, Sankhwar SN, Sharma P. Significant association of TNFα and IL-6 gene with male infertility—An explorative study in Indian populations of Uttar Pradesh. Immunol Lett 2013; 156:30-7. [DOI: 10.1016/j.imlet.2013.08.011] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2013] [Revised: 08/19/2013] [Accepted: 08/26/2013] [Indexed: 01/16/2023]
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Kiss-Toth E, Harlock E, Lath D, Quertermous T, Wilkinson JM. A TNF variant that associates with susceptibility to musculoskeletal disease modulates thyroid hormone receptor binding to control promoter activation. PLoS One 2013; 8:e76034. [PMID: 24069456 PMCID: PMC3777919 DOI: 10.1371/journal.pone.0076034] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2012] [Accepted: 08/23/2013] [Indexed: 01/13/2023] Open
Abstract
Tumor necrosis factor (TNF) is a powerful pro-inflammatory cytokine and immuno-regulatory molecule, and modulates susceptibility to musculoskeletal diseases. Several meta-analyses and replicated association studies have implicated the minor 'A' variant within the TNF promoter single nucleotide polymorphism (SNP) rs361525 (-238A/G) as a risk allele in joint related disorders, including psoriatic and juvenile idiopathic arthritis, and osteolysis after joint arthroplasty. Here we characterized the effect of this variant on TNF promoter function. A transcriptional reporter, encoding the -238A variant of the TNF promoter, resulted in 2.2 to 2.8 times greater transcriptional activation versus the 'G' variant in murine macrophages when stimulated with pro-inflammatory stimuli. Bioinformatic analysis predicted a putative binding site for thyroid hormone receptor (TR) for the -238A but not the -238G allele. Overexpression of TR-α induced promoter expression 1.8-fold in the presence of the 'A' allele only. TR-α expression both potentiated and sensitized the -238A response to LPS or a titanium particulate stimulus, whilst siRNA knockdown of either THRA or THRB impaired transcriptional activation for the -238A variant only. This effect was independent of receptor-ligand binding of triiodothyronine. Immunohistochemical analysis of osteolysis interface membranes from patients undergoing revision surgery confirmed expression of TR-α within osteoclast nuclei at the resorption surface. The 'A' allele at rs361525 confers increased transcriptional activation of the TNF promoter and influences susceptibility to several arthritic conditions. This effect is modulated, at least in part, by binding of TR, which both sensitizes and potentiates transcriptional activation of the 'A' variant independent of its endogenous ligand.
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Affiliation(s)
- Endre Kiss-Toth
- Department of Cardiovascular Science, University of Sheffield, Sheffield, United Kingdom
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Vialard F, El Sirkasi M, Tronchon V, Boudjenah R, Molina-Gomes D, Bergere M, Mauduit C, Wainer R, Selva J, Benahmed M. Tumor necrosis factor-308 polymorphism increases the embryo implantation rate in women undergoing in vitro fertilization. Hum Reprod 2013; 28:2774-83. [PMID: 23906902 DOI: 10.1093/humrep/det264] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
STUDY QUESTION Do TNF-308 and -238 polymorphisms impact the embryo implantation rate after in vitro fertilization (IVF) in women without female infertility factor? SUMMARY ANSWER The presence of the TNF-308A allele is associated with high implantation and multiple pregnancy rates in women without known infertility factors after ovarian hyperstimulation with exogenous FSH. WHAT IS ALREADY KNOWN Multiple pregnancies are frequent after the use of Assisted Reproductive Technologies. Single embryo transfer (SET) has been proposed as a simple way to prevent these risks. However, the extension of SET indications to patients not selected based on specific criteria is controversial because of reduced pregnancy rates. To date, the predictive value of the parameters used for SET (age, gynecological history of the patient and uterine characteristics) allows a pregnancy rate of ~30%. STUDY DESIGN, SIZE, DURATION The potential predictive value of TNF polymorphisms (-308, rs1800629 and -238, rs361525) on implantation rate was evaluated in 424 women requiring IVF due to male fertility factors. This cohort retrospective study was conducted over 4 years in University-affiliated hospitals. PARTICIPANTS, SETTING, METHODS The entire patient group included 424 women undergoing intracytoplasmic sperm injection (ICSI) due to male fertility factors without the contribution of any female factor. From among this group, a selected patient group included 120 women with a normal karyotype, age under 38 years, serum follicle-stimulating hormone (Day-3 FSH) levels below 10 IU/l, a long agonist desensitization protocol associated with recombinant FSH treatment and a Caucasian background. MAIN RESULTS AND THE ROLE OF CHANCE The TNF-238 polymorphism was not associated with implantation rate. In contrast, the presence of the TNF-308A allele was associated with increased Day 3-E2 levels as well as higher implantation and multiple pregnancy rates after fresh embryo transfer in women from the entire and selected patient groups. Moreover, in the selected patient group, the presence of the TNF-308A allele was also associated with a decrease in the miscarriage rate. The benefit of the TNF-308A allele in predicting implantation rates was not observed after the use of frozen embryos. LIMITATIONS, REASONS FOR CAUTION Future studies are needed to evaluate whether the TNF-308A allele might also be a biomarker in women with infertility factors. WIDER IMPLICATIONS OF THE FINDING The TNF-308A allele may represent a good candidate for a potential predictive, non-invasive biomarker in the SET strategy. However, its impact should be evaluated in prospective studies. STUDY FUNDING/COMPETING INTEREST This study was conducted with financial support from the French Institute for Health and Medical Research (INSERM), Organon France for a FARO (Fond d'Aide à la Recherche Organon) fellowship (to V.T.) and CHU Nice PHRC (PHRC 09-279).There are no competing interests.
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Affiliation(s)
- F Vialard
- Inserm, U1065, Centre Méditerranéen de Médecine Moléculaire (C3M), Team 5, Nice, F-06204, France
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75
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Huijun M, Ji Z, Ping X, Jingyu C, Bin Z. Linkage Disequilibrium Between TNF-α-308 G/A Promoter and Histocompatibility Leukocyte Antigen Alleles in Han-Nationality Lung Transplant Recipients From Eastern China. EXP CLIN TRANSPLANT 2013; 11:264-9. [DOI: 10.6002/ect.2012.0099] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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76
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Gajewski PD, Hengstler JG, Golka K, Falkenstein M, Beste C. The functional tumor necrosis factor-α (308A/G) polymorphism modulates attentional selection in elderly individuals. Neurobiol Aging 2013; 34:2694.e1-2694.e12. [PMID: 23673311 DOI: 10.1016/j.neurobiolaging.2013.04.017] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2012] [Revised: 04/04/2013] [Accepted: 04/15/2013] [Indexed: 12/16/2022]
Abstract
There has been increasing interest in understanding the role of inflammatory processes for cognitive functions in aging using molecular genetic approaches. Though this has mostly been evaluated in pathological aging, little is known about the relevance for cognitive functions in healthy aging in humans. On the basis of behavioral data and neurophysiological data (event-related potentials and time-frequency decomposition) we show that the A-allele of the functional tumor necrosis factor (TNF)-α -308 A/G polymorphism confers dysfunction in a number of cognitive processes: prolonged attentional selection indexed by a delayed P1/N1 complex, an increased P3a, which is interpreted as an enhanced distractibility by nonrelevant stimuli and compromised response selection mechanisms, as indexed by a reduced frontocentral N2. Time-frequency analyses show that allelic variations further exert their effects by modulating alpha and beta frequency oscillations. On a neurobiological level, these effects might be because of the interaction of TNF-α with glutamatergic neural transmission by which TNF-α is known to boost apoptotic mechanisms in elderly individuals.
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Affiliation(s)
- Patrick D Gajewski
- Leibniz Research Centre for Working Environment and Human Factors at the Technical University of Dortmund, Dortmund, Germany.
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77
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Fallavena PRV, de Jesus Borges T, Paskulin DD, Thurow HS, de Oliveira Paludo FJ, Dos Santos Froes C, Graebin P, Dias FS, de Toledo Nóbrega O, Alho CS. The synergy of -260T T CD14 and -308GG TNF-α genotypes in survival of critically ill patients. Scand J Immunol 2013; 77:62-8. [PMID: 23036097 DOI: 10.1111/sji.12002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2012] [Accepted: 08/17/2012] [Indexed: 12/12/2022]
Abstract
Literature suggests that the analysis of several polymorphic genetic markers is more informative than the analysis of a single polymorphism. In this study, we tested whether the shared inheritance of TLR2 and TLR4 and TNF-α allelic variants may act in synergy with -260C>T CD14 SNP on the outcome from critical conditions. We monitored 524 critically ill patients from South Brazilian, daily from the ICU admission to their discharge from hospital, or death. Our results revealed that TLR2, TLR4 or TNF-α SNPs alone did not show a significant role in the outcome from critical illness. However, when we performed a combined analysis with the CD14 inheritance, we detected a significant higher survivor rate in -260TT CD14/-308GG TNF-α individuals (P = 0.037). In the adjusted analysis including the main clinical predictors to mortality, we observed that -260TT/-308GG double-genotype was a significant protective factor towards survival (P = 0.046). An increased probability for survival of -260TT/-308GG was also observed by 'pathway genetic load' analysis (unweighted: P = 0.041; weighted: P = 0.036). When we applied a hazard function analysis with the -260TT/-308GG variable as a discriminating factor, -260TT/-308GG patients group had, in fact, a higher survivor rate (P = 0.024). Connected to the beneficial effect of -260TT CD14, the -308GG TNF-α genotype was protective against the reported over expression of TNF-α caused by -308A rare allele. Results support the hypothesis that the interaction between -260C>T CD14 and -308G>A TNF-α functional SNPs may be synergistically influencing the outcome of critically ill patients.
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Affiliation(s)
- P R V Fallavena
- Faculdade de Biociências (FABIO), Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Porto Alegre, Brazil
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78
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Boechat AL, Boechat NDO, Ogusku MM, Alencar MR, Abensur TDC, Neto JC, Amorim LDS, Oliveira LMD, Sadahiro A, Dos-Santos MC. The influence of a TNF gene polymorphism on the severity of rheumatoid arthritis in the Brazilian Amazon. Cytokine 2013; 61:406-12. [DOI: 10.1016/j.cyto.2012.11.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2012] [Revised: 08/15/2012] [Accepted: 11/22/2012] [Indexed: 12/19/2022]
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79
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Unincluded subjects need to be included for concerning the real association between TNFa−308 G/A polymorphism and cancer susceptibility. Breast Cancer Res Treat 2013. [DOI: 10.1007/s10549-012-2347-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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80
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Toonen EJM, Barrera P, Fransen J, de Brouwer APM, Eijsbouts AM, Miossec P, Marotte H, Scheffer H, van Riel PLCM, Franke B, Coenen MJH. Meta-analysis identified the TNFA -308G > A promoter polymorphism as a risk factor for disease severity in patients with rheumatoid arthritis. Arthritis Res Ther 2012; 14:R264. [PMID: 23217265 PMCID: PMC3674610 DOI: 10.1186/ar4110] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2012] [Accepted: 11/30/2012] [Indexed: 12/12/2022] Open
Abstract
Introduction The goal of this study is to investigate whether the -308G > A promoter polymorphism in the tumor necrosis factor alpha (TNFA) gene is associated with disease severity and radiologic joint damage in a large cohort of patients with rheumatoid arthritis (RA). Methods A long-term observational early RA inception cohort (n = 208) with detailed information about disease activity and radiologic damage after 3, 6 and 9 years of disease was genotyped for the TNFA -308G > A promoter polymorphism (rs1800629). A longitudinal regression analysis was performed to assess the effect of genotype on RA disease severity and joint damage. Subsequently, a meta-analysis, including all publically available data, was performed to further test the association between joint erosions and the TNFA polymorphism. To learn more about the mechanism behind the effect of the polymorphism, RNA isolated from peripheral blood from RA patients (n = 66) was used for TNFA gene expression analysis by quantitative PCR. Results Longitudinal regression analysis with correction for gender and disease activity showed a significant difference in total joint damage between GG and GA+AA genotype groups (P = 0.002), which was stable over time. The meta-analysis, which included 2,053 patients, confirmed an association of the genetic variant with the development of erosions (odds ratio 0.78, 95% CI 0.62, 0.98). No significant differences in TNFA gene expression were observed for the different genotypes, confirming earlier findings in healthy individuals. Conclusions Our data confirm that the TNFA -308G > A promoter polymorphism is associated with joint damage in patients with RA. This is not mediated by differences in TNFA gene expression between genotypes.
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81
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Gupta R, Prakash S, Parveen F, Agrawal S. Association of CTLA-4 and TNF-α polymorphism with recurrent miscarriage among North Indian women. Cytokine 2012; 60:456-62. [DOI: 10.1016/j.cyto.2012.05.018] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2012] [Accepted: 05/17/2012] [Indexed: 10/28/2022]
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82
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Liang J, Liu X, Bi Z, Yin B, Xiao J, Liu H, Li Y. Relationship between gene polymorphisms of two cytokine genes (TNF-α and IL-6) and occurring of lung cancers in the ethnic group Han of China. Mol Biol Rep 2012; 40:1541-6. [PMID: 23100065 DOI: 10.1007/s11033-012-2199-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2012] [Accepted: 10/09/2012] [Indexed: 12/31/2022]
Abstract
Tumor necrosis factor (TNF) is a cytokine involved in inflammation and TNF-α might be synthesized ectopically in malignant tumors. Interleukin-6 (IL-6) is an interleukin that acts as both a pro-inflammatory and anti-inflammatory cytokine. The present study is to investigate the relationship between genetic polymorphisms of the TNF-α and IL-6 genes and susceptibility to lung cancers in the ethnic group Han of North China. The genotypes in the -238G locus of TNF-α gene and the -572C locus of the IL-6 gene were determined by PCR-RFLP method in 138 patients with lung cancers and 138 healthy individuals. Software PHASE 1.0 was used to analyze the experimental data. The non-conditional logistic regression model was used to analyze the statistical association of genotypes and susceptibility in two groups adjusted by multiple factors. We found that the TNF-α and IL-6 polymorphisms may be a critical risk for the genetic susceptibility to lung cancers in the ethnic group Han of North China. SNP polymorphisms at the -238G locus of TNF-α gene and the -572C locus of the IL-6 gene were detected by the RFLP-PCR method. We found that high rates of single-base G-to-A alteration at the -238G locus of both alleles and high rates of single-base C-to-G alteration at the -572C locus of both alleles correlated with occurring of lung cancers. It is possible that the SNP markers at the -238G locus of TNF-α gene and the -572C locus of the IL-6 gene serve as biological markers of lung cancers upon further study in the future.
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Affiliation(s)
- Jing Liang
- Shandong Provincial Qianfoshan Hospital, Affiliated to Shandong University, No. 16766 Jing Shi Road, LiXia District, Jinan, 250014, Shandong, China
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83
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Bitto A, Polito F, Bagnato G, Talotta R, Atteritano M, Irrera N, Ientile R, Ferlazzo N, Caccamo D, Bagnato G, Caliri A, Squadrito F, Altavilla D. Influence of Polymorphism −308 G/A of the Tnf-α Gene on High Mobility Group Box-1 Protein in Rheumatoid and Spondylo-Arthritis Patients. EUR J INFLAMM 2012. [DOI: 10.1177/1721727x1201000316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Single nucleotide polymorphism (SNP) in the human Tumor Necrosis Factor-α(TNF-α) gene promoter, the −308 G/A variant, has been associated with increased TNF-α levels that may amplify the severity of rheumatoid arthritis (RA) and a poor responsiveness to TNF-α blockade therapy. High mobility group box protein (HMGB-1) is a pro-inflammatory cytokine that plays a pivotal role in the pathogenesis of RA and may be an original target of therapy. The aim of this study is to investigate whether the −308 G/A variant of the TNF-α gene is associated with altered expression of HMBG-1. A total of 110 consecutive patients with rheumatoid arthritis and spondylo-arthritis (ankylosing spondylitis, psoriatic arthritis and spondylitis associated with inflammatory bowel disease) referring to the Rheumatology Unit of Messina University Hospital were enrolled. Patients were genotyped for the −308 TNF-α gene promoter polymorphism. Clinical status was also assessed. HMGB-1 and TNF-α mRNA(Real Time PCR) from total blood and plasmatic HMGB-1 (Western Blot analysis) and TNF-α (ELISA) protein were also evaluated. Irrespective of the underlying disease, patients carrying the G/A genotype showed enhanced HMGB-1 and TNF-α mRNA levels and increased circulating concentration of the inflammatory cytokines when compared to patients with G/G genotype. The data suggest that subjects carrying the TNF-α −308G/A genotype have enhanced expression of HMGB-1 protein that may explain, at least in part, the increased severity of the disease.
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Affiliation(s)
- A. Bitto
- Department of Clinical and Experimental Medicine and Pharmacology, Section of Pharmacology, University of Messina, Italy
| | - F. Polito
- Department of Biochemical, Physiological and Nutritional Sciences, University of Messina, Italy
| | - G. Bagnato
- Department of Internal Medicine, Rheumatology Unit, University of Messina, Italy
| | - R. Talotta
- Department of Internal Medicine, Rheumatology Unit, University of Messina, Italy
| | - M. Atteritano
- Department of Internal Medicine, Rheumatology Unit, University of Messina, Italy
| | - N. Irrera
- Department of Clinical and Experimental Medicine and Pharmacology, Section of Pharmacology, University of Messina, Italy
| | - R. Ientile
- Department of Biochemical, Physiological and Nutritional Sciences, University of Messina, Italy
| | - N. Ferlazzo
- Department of Biochemical, Physiological and Nutritional Sciences, University of Messina, Italy
| | - D. Caccamo
- Department of Biochemical, Physiological and Nutritional Sciences, University of Messina, Italy
| | - G. Bagnato
- Department of Internal Medicine, Rheumatology Unit, University of Messina, Italy
| | - A. Caliri
- Department of Internal Medicine, Rheumatology Unit, University of Messina, Italy
| | - F. Squadrito
- Department of Clinical and Experimental Medicine and Pharmacology, Section of Pharmacology, University of Messina, Italy
| | - D. Altavilla
- Department of Clinical and Experimental Medicine and Pharmacology, Section of Pharmacology, University of Messina, Italy
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84
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Helaly MA, Elsaid A, Hatata ESZ, Fouda O, Settin A. TNF-α-308 and INF-γ+874 Gene Polymorphisms in Relation to Susceptibility and Severity of Type 2 Diabetes Mellitus among Egyptian Cases. ELECTRONIC JOURNAL OF GENERAL MEDICINE 2012. [DOI: 10.29333/ejgm/82455] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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85
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Radwan MI, Pasha HF, Mohamed RH, Hussien HIM, El-Khshab MN. Influence of transforming growth factor-β1 and tumor necrosis factor-α genes polymorphisms on the development of cirrhosis and hepatocellular carcinoma in chronic hepatitis C patients. Cytokine 2012; 60:271-6. [PMID: 22682513 DOI: 10.1016/j.cyto.2012.05.010] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2012] [Revised: 05/13/2012] [Accepted: 05/14/2012] [Indexed: 02/07/2023]
Abstract
BACKGROUND Host genetic factors may affect clinical outcomes of hepatitis C virus (HCV) infection; however, the possible mechanisms remain largely unknown. This study aimed to evaluate transforming growth factor-β1 (TGF-β1)-509 and tumor necrosis factor-α (TNF-α)-308 genes polymorphisms as a risk factors for cirrhosis and hepatocellular carcinoma (HCC) in chronic hepatitis C patients. MATERIALS AND METHODS Two hundred and eighty HCV patients (152 patients with cirrhosis, 128 patients with HCC) and 160 controls were enrolled in the study. Polymorphisms of TGF-β1-509 and TNF-α-308 gene were determined using polymerase chain reaction restriction fragment length polymorphism (PCR-RFLP). Serum TGF-β1 and TNF-α were determined using ELISA. RESULTS TGF-β1-509 TT, TNF-α-308 AA and GA genotypes frequencies were significantly increased in cirrhotic and HCC groups. Serum TGF-β1 and TNF-α level were significantly increased in TGF-β1-509 TT and TNF-α-308 AA genotypes respectively. CONCLUSION TGF-β1-509 and TNF-α-308 genes polymorphisms are associated with risk of liver cirrhosis and HCC in patients with chronic HCV infection.
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Affiliation(s)
- Mohamed I Radwan
- Tropical Medicine Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
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86
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Wang JK, Feng ZW, Li YC, Li QY, Tao XY. Association of tumor necrosis factor-α gene promoter polymorphism at sites -308 and -238 with non-alcoholic fatty liver disease: a meta-analysis. J Gastroenterol Hepatol 2012; 27:670-6. [PMID: 22097889 DOI: 10.1111/j.1440-1746.2011.06978.x] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND AIM Environmental and genetic factors play a role in the pathogenesis and natural history of non-alcoholic fatty liver disease (NAFLD). The objective of this study was to quantitatively evaluate the association between tumor necrosis factor (TNF)-α gene promoter polymorphism at sites -308 and -238 and NAFLD susceptibility. METHODS We performed an extensive search of relevant studies and made a meta-analysis, including eight studies with 837 NAFLD cases and 990 controls in the association between TNF-α -308 polymorphism and NAFLD; and seven studies with 771 cases and 787 controls in TNF-α -238 polymorphism. RESULTS The combined results showed that there was a significant difference in TNF-α-238 genotype distribution between NAFLD and control based on all studies (GA/AA vs GG [odds ratio = 2.06, 95% confidence interval = 1.58-2.69, P < 0.000,01]). However, the combined results based on all studies showed there was no evidence of association of TNF-α-308 genotype distribution between NAFLD cases and controls (GA/AA vs GG [odds ratio = 1.08, 95% confidence interval = 0.82-1.42, P = 0.60]). When stratifying for race, the significant results did not change materially compared with whole populations. CONCLUSION This meta-analysis suggested that TNF-α gene promoter polymorphism at position -238 but not -308 might be a risk factor for NAFLD.
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Affiliation(s)
- Ji-kai Wang
- School of Public Health, Anhui Medical University, Hefei, China
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87
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Krysa J, Jones GT, van Rij AM. Evidence for a genetic role in varicose veins and chronic venous insufficiency. Phlebology 2012; 27:329-35. [PMID: 22308533 DOI: 10.1258/phleb.2011.011030] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
There is a strong body of circumstantial evidence which implicates genetics in the aetiology and pathology of varicose veins and venous ulcer disease. The aim of this review is to consider the current knowledge of the genetic associations and the ways in which new genetic technologies may be applied to advancing our understanding of the cause and progression of these venous diseases. A number of publications have used a candidate gene approach to identify genes implicated in venous disease. Although these studies have opened up important new insights, there has been a general failure to replicate results in an independent cohort of patients. With our limited knowledge of the biological pathways involved in the pathogenesis of venous disease we are not in a strong position to formulate truly erudite a priori candidate gene hypothesis-directed studies. A genome-wide association study should therefore be considered to help further our understanding of the genetic basis of venous disease. Due to the large sample sizes required for discovery and validation, using the new generations of molecular technologies, it will be necessary to form collaborating groups in order to successfully advance the field of venous disease genetics.
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Affiliation(s)
- J Krysa
- Department of Surgery, Dunedin School of Medicine, University of Otago, New Zealand
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88
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Zheng MH, Xiao DD, Lin XF, Wu SJ, Peng MM, Yu XY, Liu WY, Li LF, Shi KQ, Fan YC, Chen YP. The tumour necrosis factor-α-238A allele increases the risk of chronic HBV infection in European populations. J Viral Hepat 2012; 19:e11-7. [PMID: 22239507 DOI: 10.1111/j.1365-2893.2011.01491.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Tumour necrosis factor-α (TNF-α) plays a pivotal role in viral clearance and host immune response to hepatitis B virus (HBV) infection, of which the production capacity in individuals is demonstrated to be influenced by a single nucleotide polymorphism within the promoter region of TNF-α genes. However, there have been conflicting results reported in previous studies on TNF-α-238 and TNF-α-863 gene promoter polymorphisms in chronic HBV infection. To derive a more precise estimation of their relationship, we searched Pubmed (January, 1966-August, 2010) and China Biological Medicine Database (January, 1978-August, 2010) and carried out a meta-analysis involving nineteen studies that included 5245 chronic HBV infection cases and 3181 controls describing G238A genotypes, and eleven studies totalling 3576 cases and 2044 controls describing C863A genotypes. The overall meta-analysis did not suggest significant associations of TNF-α-238 and TNF-α-863 gene promoter polymorphisms with chronic HBV infection. However, in subgroup analysis by ethnicity, it indicated that TNF-α-238A allele carriers (GA + AA) in European populations had an increased risk of developing chronic HBV infection (OR = 2.22, 95% CI: 1.07-4.58, P = 0.032; OR = 4.46, 95% CI: 1.75-11.38, P = 0.002, respectively), when compared with spontaneous recovered and healthy populations, respectively. However, no significant associations were found in Asian populations in all genetic models. So, we draw the conclusion that the TNF-α-238A allele may increase the risk of chronic HBV infection in European populations.
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Affiliation(s)
- M-H Zheng
- Department of Infection and Liver Diseases, Liver Research Center, The First Affiliated Hospital of Wenzhou Medical College, Wenzhou, China.
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89
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Shi KQ, Cai XH, Xiao DD, Wu SJ, Peng MM, Lin XF, Liu WY, Fan YC, Chen YP, Zheng MH. Tumour necrosis factor-α-857T allele reduces the risk of hepatitis B virus infection in an Asian population. J Viral Hepat 2012; 19:e66-72. [PMID: 22239528 DOI: 10.1111/j.1365-2893.2011.01540.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Tumour necrosis factor-α (TNF-α) plays a pivotal role in hepatitis B virus (HBV) clearance and host immune response determining the chronicity of HBV infection. However, studies of the association between TNF-α-857 polymorphism and chronic HBV infection have reported conflicting results. So a meta-analysis was carried out to draw a more precise conclusion. Pubmed (January, 1966-March, 2011) and the China Biological Medicine Database (January, 1978-March, 2011) were searched using the keywords TNF-α gene polymorphism in combination with HBV infection without language restriction. Fourteen studies including 4929 chronic HBV infection cases and 2702 controls describing the C857T genotype were included in the meta-analysis. All fourteen studies focussed on an Asian population. The overall meta-analysis suggested that TNF-α-857T allele reduced the risk of chronic HBV infection in the Asian population (OR = 0.82, 95% CI: 0.71-0.95, P = 0.008) when compared with a spontaneously recovered population. In the sensitivity analyses of the groups obeying Hardy-Weinberg equilibrium (HWE), without the largest study population and without the smallest study population, a similar association was revealed (OR = 0.81, 95% CI: 0.68-0.98, P = 0.043; OR = 0.77, 95% CI: 0.68-0.87, P = 0.0001; OR = 0.81, 95% CI: 0.70-0.95, P = 0.009, respectively). However, when compared with a healthy population, no significant association was found in the Asian population in all groups. So, we draw the conclusion that the TNF-α-857T allele reduces the risk of chronic HBV infection in this Asian population.
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Affiliation(s)
- K-Q Shi
- Department of Infection and Liver Diseases, Liver Research Center, The First Affiliated Hospital of Wenzhou Medical College, Wenzhou, China
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90
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Analysis of TNFα promoter SNPs and the risk of cervical cancer in urban populations of Posadas (Misiones, Argentina). J Clin Virol 2012; 53:54-9. [DOI: 10.1016/j.jcv.2011.09.030] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2011] [Revised: 09/21/2011] [Accepted: 09/29/2011] [Indexed: 10/15/2022]
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91
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Settin AA, Hassan HA, El-Baz RA, Hassan TA. Association of cytokine gene polymorphisms with psoriasis in cases from the nile delta of egypt. Indian J Dermatol 2011; 56:272-7. [PMID: 21772586 PMCID: PMC3132902 DOI: 10.4103/0019-5154.82479] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Background: Psoriasis is a chronic inflammatory skin disease with an immunogenetic background. This work was planned to check for the association of polymorphisms related to cytokine genes TNF-α-308 (G/A), IL-10-1082 (G/A), IL-6-174 (G/C), and IL-1Ra (VNTR) with psoriasis in cases from Egypt. Materials and Methods: This work included 46 cases with psoriasis recruited from the Dermatology Departments, University Hospitals, Nile Delta region of Egypt. They included 14 males and 32 females with an age mean ± SD of 46.68 ± 12.16 years and range of 15–70 years. Their genotypes were compared to 98 healthy controls of matched age and sex from the same locality. Genotyping was done through deoxyribonucleic acid amplification using PCR with sequence specific primers for polymorphic alleles. Results: Compared to controls, cases showed significant higher frequency of certain genotypes including IL-6-174 CC (P < 0.001, OR = 6.7), IL-10-1082 GG (P < 0.05, OR = 5.1), and TNF-α-308 GG (P < 0.05, OR = 3.7). TNF-α-308 GG and IL-10-1082 GG genotypes were higher among cases with plaque subtype of moderate severity. Combined heterozygosity for IL-10 GA, IL-6 GC with TNF GA showed a significant low frequency among studied cases. Conclusion: Genetic polymorphisms related to IL6, IL10, and TNF-α genes showed a particular pattern of association with psoriasis that may have a potential impact on disease counseling and management.
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Affiliation(s)
- Ahmad A Settin
- College of Medicine, Qassim University, Qassim, Saudi Arabia
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92
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Chen D, Liu JL, Liu Y, Zhu J, Wang SW. Lack of an association between -308G>A polymorphism of the TNF-α gene and liver cirrhosis risk based on a meta-analysis. GENETICS AND MOLECULAR RESEARCH 2011; 10:2765-74. [PMID: 22095602 DOI: 10.4238/2011.november.8.2] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
TNF-α is a potential proinflammatory cytokine that plays an important role in the pathogenesis of liver cirrhosis. We investigated a possible association between TNF-α -308G>A polymorphism and liver cirrhosis risk by conducting a meta-analysis. Publications addressing the association between TNF-α -308G>A and liver cirrhosis risk were selected from the Pubmed and Embase databases. Data were extracted from the studies by two independent reviewers; odds ratio (OR) with a 95% confidence interval (CI) was calculated from these data. The meta-analysis was performed by Review Manager Version 5.0.24 and STATA Version 9.2. Eleven studies were retrieved, reporting a total of 1796 liver cirrhosis cases and 2113 healthy controls. A meta-analysis of these 11 studies identified no significant association between TNF-α -308G>A polymorphism and liver cirrhosis risk in all comparisons of G vs A allele; GG vs GA + AA; GG + GA vs AA; GG vs AA; GG vs GA (OR = 1.14, 95%CI = 0.85-1.55, P = 0.38; OR = 1.24, 95%CI = 0.87- 1.77, P = 0.24; OR = 0.90, 95%CI = 0.62-1.30, P = 0.57; OR = 1.03, 95%CI = 0.56-1.89, P = 0.92; OR = 1.30, 95%CI = 0.90-1.88, P = 0.17; respectively). In conclusion, we found no association between TNF-α -308G>A polymorphism and liver cirrhosis risk, both in Caucasian and Asian populations.
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Affiliation(s)
- D Chen
- Department of Emergency, The Fourth Affiliated Hospital of China Medical University, Shenyang, PR China
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93
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Guan X, Liao Z, Ma H, Qian J, Liu Z, Yuan X, Gomez D, Komaki R, Wang LE, Wei Q. TNFRSF1B +676 T>G polymorphism predicts survival of non-small cell lung cancer patients treated with chemoradiotherapy. BMC Cancer 2011; 11:447. [PMID: 21995493 PMCID: PMC3220654 DOI: 10.1186/1471-2407-11-447] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2011] [Accepted: 10/14/2011] [Indexed: 11/10/2022] Open
Abstract
Background The dysregulation of gene expression in the TNF-TNFR superfamily has been involved in various human cancers including non-small cell lung cancer (NSCLC). Furthermore, functional polymorphisms in TNF-α and TNFRSF1B genes that alter gene expression are likely to be associated with risk and clinical outcomes of cancers. However, few reported studies have investigated the association between potentially functional SNPs in both TNF-α and TNFRSF1B and prognosis of NSCLC patients treated with chemoradiotherapy. Methods We genotyped five potentially functional polymorphisms of TNF-α and TNFRSF1B genes [TNF-α -308 G>A (rs1800629) and -1031 T>C (rs1799964); TNFRSF1B +676 T>G (rs1061622), -1709A>T(rs652625) and +1663A>G (rs1061624)] in 225 NSCLC patients treated with chemoradiotherapy or radiotherapy alone. Kaplan-Meier survival analysis, log-rank tests and Cox proportional hazard models were used to evaluate associations between these variants and NSCLC overall survival (OS). Results We found that the TNFRSF1B +676 GG genotype was associated with a significantly better OS of NSCLC (GG vs. TT: adjusted HR = 0.38, 95% CI = 0.15-0.94; GG vs. GT/TT: adjusted HR = 0.35, 95% CI = 0.14-0.88). Further stepwise multivariate Cox regression analysis showed that the TNFRSF1B +676 GG was an independent prognosis predictor in this NSCLC cohort (GG vs. GT/TT: HR = 0.35, 95% CI = 0.14-0.85), in the presence of node status (N2-3 vs. N0-1: HR = 1.60, 95% CI = 1.09-2.35) and tumor stage (T3-4 vs. T0-2: HR = 1.48, 95% CI = 1.08-2.03). Conclusions Although the exact biological function for this SNP remains to be explored, our findings suggest a possible role of TNFRSF1B +676 T>G (rs1061622) in the prognosis of NSCLC. Further large and functional studies are needed to confirm our findings.
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Affiliation(s)
- Xiaoxiang Guan
- Department of Epidemiology, The University of Texas M. D. Anderson Cancer Center, 1515 Holcombe Blvd, Houston, Texas 77030, USA
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94
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Mosaad YM, Abdelsalam A, El-Bassiony SR. Association of tumour necrosis factor-alpha -308 G/A promoter polymorphism with susceptibility and disease profile of rheumatoid arthritis. Int J Immunogenet 2011; 38:427-33. [PMID: 21806780 DOI: 10.1111/j.1744-313x.2011.01028.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The objective was to analyze the possible involvement of tumour necrosis factor-alpha (TNF-α) -308 G/A promoter polymorphism in the susceptibility and/or the disease profile of rheumatoid arthritis (RA) in Egyptian patients. TNF-α-308 G/promoter polymorphism detection by amplification refractory mutation system (ARMS) technique was carried out for 122 RA patients and 120 healthy controls. TNF-α-308 G allele/GG homozygous genotype were higher in patients with rheumatoid arthritis than those in control group (P < 0.001, respectively). A statistically significant association was found between the frequency of the A allele and presence of erosion (OR = 3.42, P = 0.015). No associations were found between the distribution of TNF-α-308 G/A alleles/genotypes and age of patients, disease duration, absence of remission, presence of deformity, clinical manifestations of the disease and presence or absence of rheumatoid factor. The positivity of rheumatoid factor was associated with occurrence of erosion (OR = 25.0, P < 0.001). The results of this study demonstrate the association of the TNF-α-308 G allele and GG homozygous genotype with susceptibility to RA and the A allele with the presence of erosion in the Egyptian patients.
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Affiliation(s)
- Y M Mosaad
- Clinical Immunology Unit, Clinical Pathology Department, Mansoura Faculty of Medicine, Mansoura, Egypt.
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95
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Polymorphisms of tumor necrosis factor-alpha and hepatocellular carcinoma risk: a HuGE systematic review and meta-analysis. Dig Dis Sci 2011; 56:2227-36. [PMID: 21336601 DOI: 10.1007/s10620-011-1617-y] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2010] [Accepted: 02/01/2011] [Indexed: 02/05/2023]
Abstract
BACKGROUND Studies investigating the associations between tumor necrosis factor-alpha (TNFA) polymorphisms and hepatocellular carcinoma (HCC) risk report conflicting results. We conducted a meta-analysis to assess the association between TNFA gene TNFA-308(G/A), TNFA-238(G/A), TNFA-863(C/A), TNFA-857(C/T), TNFA-1031 (T/C) polymorphisms and HCC susceptibility. METHODS Two investigators independently searched the Medline, Embase, CNKI, and Chinese Biomedicine Database. Summary odds ratios (ORs) and 95% confidence intervals (95% CIs) for TNFA polymorphisms and HCC were calculated in a fixed-effects model (the Mantel-Haenszel method) and a random-effects model (the DerSimonian and Laird method) when appropriate. RESULTS This meta-analysis included 17 case-control studies, which included 2,357 HCC cases and 3,161 controls. Overall, the variant genotypes AA/AG of -308G/A were associated with a significantly increased HCC risk, when compared with GG genotype (AA vs. GG, OR=1.97, 95%CI=1.01-3.83; AG vs. GG, OR=1.88, 95%CI=1.23-2.88; AA/AG vs. GG, OR=1.80, 95%CI=1.19-2.72). When stratifying for ethnicity, significantly elevated HCC risk was found among Asians. Moreover, similar results were observed between TNFA-238G/A, TNFA-863C/A polymorphisms and HCC risk among Asians (for -238G/A, AG vs. GG OR=1.63, 95%CI=1.17-2.26, AA/AG vs. GG OR=1.61, 95%CI=1.16-2.24; for -863 C/A, AC vs. CC OR=1.72, 95%CI=1.03-2.88, AA/AC vs. CC OR=1.71, 95%CI=1.02-2.86), while no associations were observed between TNFA-857C/T, TNFA-1031T/C polymorphisms and HCC susceptibility. CONCLUSIONS This meta-analysis shows that TNFA-308G/A, TNFA-238G/A and TNFA-863C/A polymorphisms may be associated with HCC among Asians. TNFA-857C/T and TNFA-1031T/C polymorphisms were not detected to be related to the risk for HCC.
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96
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Bozkurt B, Mesci L, Irkec M, Ozdag BB, Sanal O, Arslan U, Ersoy F, Tezcan I. Association of tumour necrosis factor-alpha -308 G/A polymorphism with primary open-angle glaucoma. Clin Exp Ophthalmol 2011; 40:e156-62. [PMID: 21575121 DOI: 10.1111/j.1442-9071.2011.02595.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
BACKGROUND Tumour necrosis factor-alpha (TNF-α) is an important proinflammatory cytokine driving axonal degeneration and retinal ganglion cell apoptosis in glaucoma. The aim of the study was to evaluate the association of TNF-α -308 G/A and -238 G/A polymorphisms with primary open-angle glaucoma (POAG). DESIGN A prospective, case-control study, university hospital setting. PARTICIPANTS Eighty-six POAG patients and 193 healthy unrelated controls. METHODS TNF-α polymorphisms were screened by using direct gene sequencing. MAIN OUTCOME MEASURES Frequency of TNF-α -308 G/A and TNF-α -238 G/A promoter polymorphisms in glaucoma and healthy subjects. RESULTS The frequencies of TNF-α -308 GA genotype and 'A' allele were higher in patients with POAG (22.1% and 12.2%, respectively) in comparison with the control group (10.9% and 6%, respectively) (P = 0.046 and 0.02, respectively), with odds ratios of 2.45 (P = 0.01, 95% CI = 1.23-4.87) and 2.19 (P = 0.013, 95% CI = 1.18-4.08), respectively. Genotype distribution of the TNF-α -238 variants did not yield a statistically significant difference between the two groups (P = 0.87). CONCLUSION TNF-α -308 G/A polymorphism seems to be associated with POAG in Turkish population. However, population-based studies with large number of subjects and long-term follow-up are needed to verify the association of TNF-α -308 G/A polymorphism with glaucoma susceptibility.
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Affiliation(s)
- Banu Bozkurt
- Department of Ophthalmology, Selcuk University, Meram Medical Faculty, Konya, Turkey.
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97
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Liu L, Yang X, Chen X, Kan T, Shen Y, Chen Z, Hu Z. Association between TNF-α polymorphisms and cervical cancer risk: a meta-analysis. Mol Biol Rep 2011; 39:2683-8. [DOI: 10.1007/s11033-011-1022-9] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2010] [Accepted: 06/03/2011] [Indexed: 01/22/2023]
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98
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Jiao H, Wang W, Wang H, Wu Y, Wang L. Tumor necrosis factor alpha 308 G/A polymorphism and Guillain-Barré syndrome risk. Mol Biol Rep 2011; 39:1537-40. [PMID: 21604171 DOI: 10.1007/s11033-011-0892-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2011] [Accepted: 05/17/2011] [Indexed: 10/18/2022]
Abstract
Guillain-Barré syndrome (GBS) is an inflammatory disorder that may implicate proinflammatory cytokines such as tumor necrosis factor alpha (TNF-alpha) in its pathogenesis. The association between TNF-alpha 308 G/A polymorphism and GBS largely remains unknown. The aim of this study was to investigate the association between TNF-alpha 308 G/A polymorphism and GBS in Chinese Han patients. TNF-alpha 308 G/A polymorphism in 150 GBS patients and 150 healthy controls were studied using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) assay. Patients with GBS had a significantly higher frequency of TNF-alpha 308AA genotype [odds ratio (OR) = 3.79, 95% confidence interval (CI) = 1.03, 13.94; P = 0.04] than controls. When stratified by the GBS subtype, there was a significantly higher frequency of TNF-alpha 308AA genotype in patients with AMAN (OR = 6.05, 95% CI = 1.45, 25.31; P = 0.01) and AMSAN (OR = 5.56, 95% CI = 1.18, 26.23; P = 0.03) than controls. There was no significant difference in the distribution of each genotype between patients with AIDP and the control group. These data indicated that TNF-alpha 308AA genotype was associated with a higher risk of GBS in Chinese population, especially to AMAN and AMSAN.
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Affiliation(s)
- Hong Jiao
- Department of Neurology, The Second Affiliated Hospital of Harbin Medical University, 246 Xuefu Road, Harbin, Heilongjiang 150086, People's Republic of China
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99
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Paskulin DD, Fallavena PR, Paludo FJ, Borges TJ, Picanço JB, Dias FS, Alho CS. TNF -308G > A promoter polymorphism (rs1800629) and outcome from critical illness. Braz J Infect Dis 2011; 15:231-8. [DOI: 10.1016/s1413-8670(11)70181-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2010] [Accepted: 02/06/2011] [Indexed: 11/26/2022] Open
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100
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Shankarkumar U, Shankarkumar A, Ghosh K. Human immunodeficiency virus therapeutics and pharmacogenomics. INDIAN JOURNAL OF HUMAN GENETICS 2011; 17 Suppl 1:S22-6. [PMID: 21747583 PMCID: PMC3125049 DOI: 10.4103/0971-6866.80354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Pharmacogenomics and pharmacogenetics are promising in development of a personalized treatment approach They are of paramount importance for basic immunology, for peptide based vaccine design (vaccinomics) drug monitoring in clinical setting and molecular pathophysiology of multifactorial diseases like cancer, tuberculosis, cardiac disorders, diabetes, asthma, HIV, etc.
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Affiliation(s)
- U. Shankarkumar
- National Institute of Immunohaematology, 13 floor, KEM Hospital, Parel, Mumbai, Maharashtra, India
| | - A. Shankarkumar
- National Institute of Immunohaematology, 13 floor, KEM Hospital, Parel, Mumbai, Maharashtra, India
| | - K. Ghosh
- National Institute of Immunohaematology, 13 floor, KEM Hospital, Parel, Mumbai, Maharashtra, India
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