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Martínez-Ramírez OC, Castro-Hernández C, Pérez-Morales R, Casas-Ávila L, de Lorena RGM, Salazar-Piña A, Rubio J. Pathological characteristics, survival, and risk of breast cancer associated with estrogen and xenobiotic metabolism polymorphisms in Mexican women with breast cancer. Cancer Causes Control 2021; 32:369-378. [PMID: 33515362 DOI: 10.1007/s10552-021-01393-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 01/05/2021] [Indexed: 10/22/2022]
Abstract
Prolonged exposure to estrogens is the main factor associated with the risk and prognosis of breast cancer (BC). The genes involved in the biotransformation of estrogens and xenobiotics have allelic variants with modified enzymatic activities. We investigated the association of nine polymorphisms of some genes from the classical estrogen pathway with the risk of breast cancer and their role in the clinicopathological characteristics of poor clinical prognosis in a sample of Mexican women with BC. METHODS We included 150 controls and 150 cases matched by age. To analyze the selected polymorphisms, TaqMan assays and high-resolution melting (HRM) analysis were used. RESULTS The polymorphisms of the genes ERα, CYP1A1, CYP1B1, COMT, MGMT, and XRCC1 were positively associated with the BC risk. We found negative associations between CYP1B1G/G genotype and tumor size, and status of lymph node, estrogen receptor, triple negative, and survival. CONCLUSIONS The polymorphisms included in this study are associated not only with the risk of BC, but also with some clinicopathological characteristics for poor prognosis of patients with breast cancer, highlighting the important role of CYP1B1 Leu432Val polymorphism.
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Affiliation(s)
- O C Martínez-Ramírez
- Facultad de Nutrición, Universidad Autónoma del Estado de Morelos, Río Iztacihuatl S/N. Col. Vista Hermosa,, C.P. 62350, Ciudad de México, Mexico.
| | - C Castro-Hernández
- Departamento de Medicina Genómica Y Toxicología Ambiental, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Apartado, Postal 70228, C.P. 04510, Ciudad de México, Mexico
| | - R Pérez-Morales
- Facultad de Ciencias Químicas, Departamento de Biología Molecular, Universidad Juárez del Estado de Durango, C.P. j35010, Durango, Mexico
| | - L Casas-Ávila
- Departamento de Genética, Instituto Nacional de Rehabilitación, C.P. 14389, Ciudad de México, Mexico
| | - Ramos-García M de Lorena
- Facultad de Nutrición, Universidad Autónoma del Estado de Morelos, Río Iztacihuatl S/N. Col. Vista Hermosa,, C.P. 62350, Ciudad de México, Mexico
| | - A Salazar-Piña
- Facultad de Nutrición, Universidad Autónoma del Estado de Morelos, Río Iztacihuatl S/N. Col. Vista Hermosa,, C.P. 62350, Ciudad de México, Mexico
| | - J Rubio
- Departamento de Medicina Genómica Y Toxicología Ambiental, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Apartado, Postal 70228, C.P. 04510, Ciudad de México, Mexico
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Vlaykova T, Kurzawski M, Tacheva T, Dimov D, Anastasov A, Vlaykova D, Miteva A, O'donoghue N, Drozdzik M. Effects of the IL6 -174G>C promoter polymorphism and IL-6 serum levels on the progression of cutaneous malignant melanoma. Oncol Lett 2020; 20:1781-1791. [PMID: 32724421 PMCID: PMC7377025 DOI: 10.3892/ol.2020.11740] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 03/26/2020] [Indexed: 11/05/2022] Open
Abstract
Cutaneous malignant melanoma (CMM) is one of the most immunogenic types of cancer, with a 6-fold higher rate of spontaneous regression than any other malignancy. In addition to responsiveness to different immunotherapies, the immunogenicity of CMM highlights the important role of the host immune system in the response to CMM. The present study aimed to explore the role of two functional promoter polymorphisms [IL6 -174G>C (rs1800785) and TNFA -308G>A (rs1800629)] in the regulation of the genes encoding the pro-inflammatory cytokines interleukin (IL)-6 and tumor necrosis factor-α, specifically in patients with CMM. A total of 76 patients with CMM and 200 control subjects were genotyped using PCR-restriction fragment length polymorphism. The genotype frequencies for both single nucleotide polymorphisms (SNPs) did not differ significantly between the patients and controls (P=0.358 and P=0.810 for IL6 and TNFA, respectively). However, compared with carriers of C-allele genotypes (CG+CC), patients with the IL6 -174GG genotype exhibited more advanced melanoma (Clark scale ≥3; P=0.037) and shorter survival times, particularly those who worked outdoors (in conditions with increased sunlight exposure; P=0.016). Furthermore, the serum IL-6 levels of patients with CMM were significantly higher than those of the control subjects, which were associated with unfavorable blood and serum characteristics and tumor progression (development of new distant metastases; P=0.004), and with a shorter overall survival time (P=0.042). Using a Cox proportional hazard model, the IL6 -174GG genotype was found to be an independent prognostic factor for reduced survival time (P=0.030), together with sex (being male; P=0.004) and occupations with higher exposure to sunlight (P=0.047). In conclusion, the results of the present study indicated that the promoter polymorphisms IL6 -174G>C and TNFA -308G>A are not predisposing factors for CMM. However, the IL6 -174G>C SNP and IL-6 serum concentrations are likely to influence the progression of the disease, and the GG genotype and higher IL-6 serum levels may indicate shorter survival.
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Affiliation(s)
- Tatyana Vlaykova
- Department of Chemistry and Biochemistry, Medical Faculty, Trakia University, Stara Zagora 6000, Bulgaria
| | - Mateuzh Kurzawski
- Department of Experimental and Clinical Pharmacology, Pomeranian Medical University, Szczecin 70-204, Poland
| | - Tanya Tacheva
- Department of Chemistry and Biochemistry, Medical Faculty, Trakia University, Stara Zagora 6000, Bulgaria
| | - Dimo Dimov
- Department of Chemistry and Biochemistry, Medical Faculty, Trakia University, Stara Zagora 6000, Bulgaria
| | - Asen Anastasov
- Department of Chemistry and Biochemistry, Medical Faculty, Trakia University, Stara Zagora 6000, Bulgaria
| | - Denitsa Vlaykova
- Department of Chemistry and Biochemistry, Medical Faculty, Trakia University, Stara Zagora 6000, Bulgaria
| | - Ani Miteva
- Department of Medical Ethics and Law, Faculty of Public Health, Medical University of Sofia, Sofia 1431, Bulgaria
| | - Niamh O'donoghue
- Department of Chemistry and Biochemistry, Medical Faculty, Trakia University, Stara Zagora 6000, Bulgaria
| | - Marek Drozdzik
- Department of Experimental and Clinical Pharmacology, Pomeranian Medical University, Szczecin 70-204, Poland
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Aznag FZ, Moutaoufik MT, Korrida A, Izaabel EH. Genetic Distribution of the LTA +252 A>G and TNFA -308 G > A Polymorphisms in the Moroccan Population. Genet Test Mol Biomarkers 2019; 23:871-876. [PMID: 31738572 DOI: 10.1089/gtmb.2019.0116] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Introduction: The LTA and TNFA genes encode key proinflammatory cytokines with diverse activities in the immune responses. Single nucleotide polymorphisms (SNPs) in the LTA rs909253 (+252 A > G) and TNFA rs1800629 (-308 G > A) genes have been associated with susceptibility to many complex diseases. The aim of this study was to assess the frequency for these two key polymorphisms in the Moroccan population. Materials and Methods: A total of 338 unrelated healthy Moroccan subjects were genotyped for the two alleles using a restriction fragment length polymorphism-polymerase chain reaction method. Results: The LTA (+252 A > G) and TNFA (-308 G > A) were the most common alleles with 67.9% and 74.8% frequencies, respectively. In addition to the linkage disequilibrium between the two SNPs, significant differences in allele frequencies were observed in Moroccan population compared with Mediterraneans, Europeans, Africans, South Americans, and Asians (p < 0.05). Finally, genetic proximities between Moroccan, European, and West African populations were found by means of the principal component analysis. Conclusion: The LTA +252 A>G and TNFA -308 G > A polymorphisms among Moroccan population follow the patterns commonly encountered in other Mediterranean, European, and African populations. The result of this study could contribute in developing a genetic database on the healthy Moroccan population.
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Affiliation(s)
- Fatima Zahra Aznag
- Laboratory of Cellular Biology and Molecular Genetics, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco
| | | | - Amal Korrida
- Laboratory of Cellular Biology and Molecular Genetics, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco.,Higher Institute of Nursing Professions and Health Techniques of Agadir, Ministry of Health, Agadir, Morocco
| | - El Hassan Izaabel
- Laboratory of Cellular Biology and Molecular Genetics, Faculty of Sciences, Ibn Zohr University, Agadir, Morocco
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Genetic association between TNF-α promoter polymorphism and susceptibility to squamous cell carcinoma, basal cell carcinoma, and melanoma: A meta-analysis. Oncotarget 2017; 8:53873-53885. [PMID: 28881857 PMCID: PMC5581156 DOI: 10.18632/oncotarget.17179] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Accepted: 03/16/2017] [Indexed: 01/18/2023] Open
Abstract
Tumor necrosis factor-alpha (TNF-α) is a multifunctional pro-inflammatory cytokine that plays an important role in cancer development. We performed a meta-analysis to assess the relationship between single nucleotide polymorphisms in the TNF-α promoter region (rs1800629 and rs361525) and susceptibility to squamous cell carcinoma (SCC), basal cell carcinoma (BCC) and melanoma. After database retrieval, article selection, data extraction, and quality assessment, 20 articles comprising 4865 cases and 6329 controls were included in this study. rs1800629 was associated with an increased overall risk of SCC, lung SCC, and oral SCC in the AA vs G and AA vs GG+GA genetic models (all OR>1, Passociation<0.05). No increased risk of skin SCC, skin BCC or melanoma was observed (all Passociation>0.05). Rs361525 was not associated with overall SCC risk in the allele, heterozygote, dominant, recessive, or carrier model (all Passociation>0.05). Begg's and Egger's tests (PBegg>0.05; PEgger>0.05) demonstrated there was no significant publication bias. These data indicate that the AA genotype of TNF-α rs1800629, but not rs361525, is associated with an increased risk of SCC, suggesting it could potentially serve as a prognostic marker for predicting SCC risk.
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Gutlapalli VR, Sykam A, Tenali SP, Suneetha S, Suneetha LM. High levels of plasma interferon gamma and +874T/A gene polymorphism is associated with HIV-TB co-infection. Hum Immunol 2016; 77:1264-1270. [PMID: 27521485 DOI: 10.1016/j.humimm.2016.08.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Revised: 07/19/2016] [Accepted: 08/04/2016] [Indexed: 11/17/2022]
Abstract
OBJECTIVE Tuberculosis (TB) is one of the most frequent opportunistic infections in HIV patients leading to increased morbidity and death rate. This study was carried out to investigate the role of the cytokines IFN-γ and TNF-α level and their single nucleotide polymorphisms (SNPs) in HIV-TB co-infection. METHODS 247 HIV-TB (124 HIV-pulmonary TB, 123 HIV-extra pulmonary TB), 126 HIV positive individuals without tuberculosis and 129 healthy subjects (HS) were included to measure plasma levels of IFN-γ and TNF-α by sandwich ELISA and One way ANOVA statistical analysis was carried out among the groups. The SNPs of TNF-α-308 G/A, -238 G/A and IFN-γ+874 T/A were also investigated using amplification refractory mutation system polymerase chain reaction (ARMS-PCR). The frequencies between the groups were compared by Pearson's chi square statistical analysis. RESULTS Plasma IFN-γ and TNF-α were significantly elevated in HIV-TB and TB (p<0.05) as compared to those in HS group. There was significant association between IFN-γ+874 'A' allele and AA genotype in HIV-TB groups compared to HS and HIV (p<0.05) and no such association was found for TNF-α-308 and -238. The plasma cytokine levels of TNF-α and IFN-γ reveals no significant association with levels of IFN-γ+874 T/A, TNF-α -308 G/Aand-238 G/A genotypes in any of the study groups. CONCLUSION In conclusion, the present study revealed elevated plasma IFN-γ and its +874 'A' allele are associated with HIV-TB co-infection indicating 1.6 times increased risk for TB susceptibility. Elevated TNF-α levels in TB and HIV-TB suggest its involvement in TB pathogenesis.
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Affiliation(s)
- V R Gutlapalli
- CODEWEL Nireekshana-ACET, Narayanaguda, Hyderabad, Telangana 500029, India; Centre for Biotechnology, Acharya Nagarjuna University, Guntur, Andhra Pradesh 522510, India
| | - Aparna Sykam
- CODEWEL Nireekshana-ACET, Narayanaguda, Hyderabad, Telangana 500029, India; Centre for Biotechnology, Acharya Nagarjuna University, Guntur, Andhra Pradesh 522510, India
| | - Sandeep P Tenali
- CODEWEL Nireekshana-ACET, Narayanaguda, Hyderabad, Telangana 500029, India; Centre for Biotechnology, Acharya Nagarjuna University, Guntur, Andhra Pradesh 522510, India
| | - Sujai Suneetha
- CODEWEL Nireekshana-ACET, Narayanaguda, Hyderabad, Telangana 500029, India
| | - Lavanya M Suneetha
- CODEWEL Nireekshana-ACET, Narayanaguda, Hyderabad, Telangana 500029, India.
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Vogelsang M, Wilson M, Kirchhoff T. Germline determinants of clinical outcome of cutaneous melanoma. Pigment Cell Melanoma Res 2016; 29:15-26. [PMID: 26342156 PMCID: PMC5024571 DOI: 10.1111/pcmr.12418] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Accepted: 09/02/2015] [Indexed: 12/12/2022]
Abstract
Cutaneous melanoma (CM) is the most lethal form of skin cancer. Despite the constant increase in melanoma incidence, which is in part due to incremental advances in early diagnostic modalities, mortality rates have not improved over the last decade and for advanced stages remain steadily high. While conventional prognostic biomarkers currently in use find significant utility for predicting overall general survival probabilities, they are not sensitive enough for a more personalized clinical assessment on an individual level. In recent years, the advent of genomic technologies has brought the promise of identification of germline DNA alterations that may associate with CM outcomes and hence represent novel biomarkers for clinical utilization. This review attempts to summarize the current state of knowledge of germline genetic factors studied for their impact on melanoma clinical outcomes. We also discuss ongoing problems and hurdles in validating such surrogates, and we also project future directions in discovery of more powerful germline genetic factors with clinical utility in melanoma prognostication.
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Affiliation(s)
- Matjaz Vogelsang
- Perlmutter Cancer Center, New York University School of Medicine, New York, USA
- Departments of Population Health and Environmental Medicine, New York University School of Medicine, New York, USA
- The Interdisciplinary Melanoma Cooperative Group, New York University School of Medicine, New York, USA
| | - Melissa Wilson
- Perlmutter Cancer Center, New York University School of Medicine, New York, USA
- Department of Medicine, New York University School of Medicine, New York, USA
- The Interdisciplinary Melanoma Cooperative Group, New York University School of Medicine, New York, USA
| | - Tomas Kirchhoff
- Perlmutter Cancer Center, New York University School of Medicine, New York, USA
- Departments of Population Health and Environmental Medicine, New York University School of Medicine, New York, USA
- The Interdisciplinary Melanoma Cooperative Group, New York University School of Medicine, New York, USA
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Association of tumor necrosis factor-alpha and interferon gamma gene polymorphisms and their plasma levels in leprosy, HIV and other peripheral neuropathies. Cytokine 2015; 76:473-479. [PMID: 26431782 DOI: 10.1016/j.cyto.2015.09.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Revised: 09/11/2015] [Accepted: 09/14/2015] [Indexed: 10/23/2022]
Abstract
OBJECTIVE Mycobacterium leprae and Human Immunodeficiency Virus (HIV) are causative agents known to be involved in nerve damage in leprosy and HIV-peripheral neuropathy (HIV-PN) respectively. Among other peripheral neuropathies the most common is diabetic neuropathy, which is metabolically induced. The proinflammatory cytokines TNF-α and IFN-γ have been implicated in the pathogenesis of peripheral neuropathy. The association between the plasma levels of these cytokines and their single nucleotide polymorphisms (SNPs) were investigated in leprosy neuropathy (LN), HIV-PN and other peripheral neuropathies (OPN). METHODS Eighty-eight individuals with LN (PB=36; MB=52), 39 with HIV-PN, 52 patients with OPN, 101 HIV positive individuals without neuropathy (HIV) and 113 healthy subjects (HS) were included in the study. Plasma cytokine levels were measured by sandwich ELISA and one way ANOVA was carried out among the groups. SNPs of TNF-α- 308 G/A, -238 G/A and IFN-γ +874 T/A were investigated by amplification refractory mutation system polymerase chain reaction (ARMS-PCR). Their frequencies were compared between groups by Pearson's chi squared test. RESULTS Plasma TNF-α and IFN-γ was significantly increased in LN (p<0.05), HIV-PN (p<0.05) and OPN (p<0.05) as compared to HS. A significant association was found between IFN-γ +874 A/A genotype in LN (p<0.05; OR=7.9), HIV-PN (p<0.05; OR=8.9) and OPN (p<0.05; OR=8.9) as compared to HS. CONCLUSION Elevated levels of plasma TNF-α and IFN-γ and the association of IFN-γ +874 A/A genotype SNP in LN, HIV-PN and OPN suggests a common involvement of these cytokines in susceptibility/pathogenesis of peripheral neuropathy.
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Torres-Espíndola LM, Velázquez-Cruz R, Falfán-Valencia R, Chavez-Pacheco JL, Salcedo-Vargas M, de Jesús Nambo-Lucio M, Salinas-Lara C, Alemón-Medina R, Granados-Montiel J, Reyes-Servín MA, Granados J, de Jesús Castillejos-López M. Genetic polymorphism of tumor necrosis factor promoter region and susceptibility to develop Hodgkin lymphoma in a Mexican population. Leuk Lymphoma 2013; 55:1295-9. [PMID: 24033107 DOI: 10.3109/10428194.2013.842982] [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: 11/13/2022]
Abstract
Hodgkin lymphoma (HL) is a rare neoplasm of the lymphatic system, in which inflammation and allelic variants in cytokines have been proposed as etiological factors. Epstein-Barr virus infection is often associated as a risk factor in HL and since cytokines are involved in the humoral response to viral infection. Our aim was to study the association between single nucleotide polymorphisms (SNPs) located in the tumor necrosis factor (TNF) gene (- 376G> A, - 238G> A and 581G> A) in a sample of Mexican patients (56 cases) and their susceptibility to develop HL, comparing these SNPs among healthy individuals (127 controls). Frequencies for TNF - 238G> A and TNF 581G> A showed no significant differences between cases and controls. However, the proportion of cases with the GA genotype of - 376 SNP showed a significant difference as compared to controls, odds ratio = 4.41 (95% confidence interval: 1.21-16.6), p = 0.02. We found that in this group of patients from Mexico the SNP - 376G> A in TNF shows an association with higher risk for HL.
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Affiliation(s)
- Luz María Torres-Espíndola
- PhD Graduate Program in Biological Sciences, National Autonomous University of Mexico , Mexico City , Mexico
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A consideration of biomarkers to be used for evaluation of inflammation in human nutritional studies. Br J Nutr 2013; 109 Suppl 1:S1-34. [PMID: 23343744 DOI: 10.1017/s0007114512005119] [Citation(s) in RCA: 250] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
To monitor inflammation in a meaningful way, the markers used must be valid: they must reflect the inflammatory process under study and they must be predictive of future health status. In 2009, the Nutrition and Immunity Task Force of the International Life Sciences Institute, European Branch, organized an expert group to attempt to identify robust and predictive markers, or patterns or clusters of markers, which can be used to assess inflammation in human nutrition studies in the general population. Inflammation is a normal process and there are a number of cells and mediators involved. These markers are involved in, or are produced as a result of, the inflammatory process irrespective of its trigger and its location and are common to all inflammatory situations. Currently, there is no consensus as to which markers of inflammation best represent low-grade inflammation or differentiate between acute and chronic inflammation or between the various phases of inflammatory responses. There are a number of modifying factors that affect the concentration of an inflammatory marker at a given time, including age, diet and body fatness, among others. Measuring the concentration of inflammatory markers in the bloodstream under basal conditions is probably less informative compared with data related to the concentration change in response to a challenge. A number of inflammatory challenges have been described. However, many of these challenges are poorly standardised. Patterns and clusters may be important as robust biomarkers of inflammation. Therefore, it is likely that a combination of multiple inflammatory markers and integrated readouts based upon kinetic analysis following defined challenges will be the most informative biomarker of inflammation.
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Ward KA, Lazovich D, Hordinsky MK. Germline melanoma susceptibility and prognostic genes: A review of the literature. J Am Acad Dermatol 2012; 67:1055-67. [PMID: 22583682 DOI: 10.1016/j.jaad.2012.02.042] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2011] [Revised: 02/26/2012] [Accepted: 02/29/2012] [Indexed: 12/12/2022]
Affiliation(s)
- Katherine A Ward
- University of Minnesota Medical School, Minneapolis, Minnesota, USA
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Landeck L, Visser M, Kezic S, John SM. Impact of tumour necrosis factor-α polymorphisms on irritant contact dermatitis. Contact Dermatitis 2012; 66:221-7. [PMID: 22404198 DOI: 10.1111/j.1600-0536.2011.02045.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
BACKGROUND Genetic variations in genes coding for cytokines involved in skin inflammation may alter their expression, thus changing the susceptibility to irritant contact dermatitis (ICD). OBJECTIVES To determine the prevalence of polymorphisms in the cytokine genes TNFA-238 and TNFA-308 in patients with occupational ICD, and to compare it with that in controls. METHODS In a case-control study, 478 patients with occupational ICD of the hands were genotyped for TNFA-238 and TNFA-308 polymorphisms. The results were compared with those for 393 apprentices from the same high-risk occupations (controls). RESULTS For a carrier of a variant TNFA-238A allele, the odds ratio (OR) of acquiring ICD was 0.57 [95% confidence interval (CI) 0.34-0.97], suggesting a protective effect of the A allele. The genotype distributions were 94.4% wild type (G/G), 5.6% heterozygous (G/A) and 0% homozygous for variant allele (A/A) in patients, and 90.9%, 8.5%, and 0.6%, respectively in controls. In contrast, carriers of the variant TNFA-308A allele had an increased risk of ICD [OR 1.33; 95% CI 1.05-1.74; G/G 66.4%, G/A 31.2%, and A/A 2.4% (patients) versus 73.5%, 24.6%, 1.9% in controls]. CONCLUSIONS Individuals with a TNFA-238 polymorphism are less prone and those with a TNFA-308 polymorphism are more prone to develop ICD of the hands, suggesting a protective versus a detrimental effect of the A allele respectively.
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Affiliation(s)
- Lilla Landeck
- Department of Dermatology, Environmental Medicine and Health Theory, University of Osnabrück, 49090 Osnabrück, Germany.
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The TNF-alpha-238 polymorphism and cancer risk: a meta-analysis. PLoS One 2011; 6:e22092. [PMID: 21818296 PMCID: PMC3139602 DOI: 10.1371/journal.pone.0022092] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2011] [Accepted: 06/15/2011] [Indexed: 12/16/2022] Open
Abstract
Background and Objectives Tumor necrosis factor-α (TNF-α) plays a very important role in the development and progress of cancer. Some TNF-α polymorphisms have been confirmed to increase cancer risks; however, the association between TNF-α-238 polymorphism and cancers remains controversial and ambiguous. The aim of this study is to explore a more precise estimation of its relationship with cancer using meta-analysis. Methods Electronic searches of several databases were conducted for all publications on the association between this variant and cancer through March 2011. Odds ratios (OR) with 95% confidence intervals (95% CI) were used to access the strength of this association in the random-effect model. Results Thirty four studies with 34,679 cancer patients and 41,186 healthy controls were included. This meta-analysis showed no significant association between TNF-α-238 polymorphism and cancers (AA+GA vs GG: OR = 1.09, 95%CI = 0.88–1.34). In Caucasian and Asian subgroups, OR values (95% CI) were 1.14 (0.91–1.43) and 0.97 (0.58–1.61), respectively. In the subgroups of cancer type, no significant association was detected. The sensitivity analysis further strengthened the validity of these negative associations. No publication bias was observed in this study. Conclusions No significant association was found between the TNF-α-238 polymorphism and the risk for cancer.
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Banerjee N, Nandy S, Kearns JK, Bandyopadhyay AK, Das JK, Majumder P, Basu S, Banerjee S, Sau TJ, States JC, Giri AK. Polymorphisms in the TNF-α and IL10 gene promoters and risk of arsenic-induced skin lesions and other nondermatological health effects. Toxicol Sci 2011; 121:132-9. [PMID: 21357384 DOI: 10.1093/toxsci/kfr046] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
In West Bengal, India, at present, more than 26 million people are exposed to arsenic through drinking water. Among them, only 15-20% manifest arsenic-induced noncancerous, precancerous, and cancerous skin lesions, indicating that genetic variants play important role in arsenic susceptibility. Chronic arsenic exposure has been associated with impairment of immune systems in the exposed individuals. Because cytokines are important immune mediators, alteration in expression of these gene products may lead to arsenic-specific disease manifestations. The aim of the present work was to investigate the association between the TNF-α-308G>A (rs1800629) and IL10 -3575T>A (rs1800890) polymorphisms and arsenic-induced dermatological and nondermatological health outcomes. A case-control study was conducted in West Bengal, India, involving 207 cases with arsenic-induced skin lesions and 190 controls without skin lesions having similar arsenic exposure. The polymorphisms were determined using conventional PCR-sequencing method. ELISA was done to determine the serum levels of the two cytokines tumor necrosis factor α (TNF-α) and interleukin 10 (IL10). Associations between the polymorphisms studied and nondermatological health effects in the study subjects were determined from our epidemiological survey data. Individuals with GA/AA (-308 TNF-α) and TA/AA (-3575 IL10) genotypes were at higher risk of developing arsenic-induced skin lesions, ocular, and respiratory diseases. Also the -308 TNF A allele corresponded to a higher production of TNF-α, and -3575 IL10 A allele corresponded to a lower production of IL10. Thus, the polymorphisms studied impart significant risk toward development of arsenic-induced dermatological and nondermatological health effects in the chronically exposed population of West Bengal, India.
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Affiliation(s)
- Nilanjana Banerjee
- Molecular and Human Genetics Division, Indian Institute of Chemical Biology (Unit of Council of Scientific and Industrial Research), West Bengal, Kolkata 700032, India
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Pappa S, Hatzistilianou M, Kouvatsi A, Pantzartzi C, Sakellaropoulou A, Pavlou E, Mavromichales I, Athanassiadou F. Tumour necrosis factor gene polymorphisms and migraine in Greek children. Arch Med Sci 2010; 6:430-7. [PMID: 22371782 PMCID: PMC3282523 DOI: 10.5114/aoms.2010.14267] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2009] [Revised: 08/30/2009] [Accepted: 10/03/2009] [Indexed: 02/05/2023] Open
Abstract
INTRODUCTION Migraine is considered to be a multifactorial, complex disease. Various genetic and environmental factors contribute to the manifestation of this disease. The aim of this study was to determine whether polymorphisms in the tumour necrosis factor (TNF) region are associated with the risk of migraine. We examined the association between 6 single nucleotide polymorphisms in the coding regions of TNF-α and TNF-β genes and migraine. MATERIAL AND METHODS The study included two groups of children (group A and group B). Group A consisted of 103 unrelated children with typical migraine without aura 5-14 years of age. Group B (control group) consisted of 178 unrelated healthy children. The diagnosis of migraine was, in all patients, made according to the International Classification of Headache Disorders (ICHD II). RESULTS According to our results positive family history was present in 62.2% of patients of group A. No significant differences were found in the frequencies of genotypes or alleles between patients and controls. The non-parametric analyses of variance showed no significant differences in the age at onset between genotype groups of the TNF-α and TNF-β gene polymorphisms. Comparison of genotype frequencies between boys and girls in affected patients and control individuals were not significantly different (p = 0.089, p =0.073 respectively). The distribution of TNF polymorphisms was not associated with the presence of family history of migraine in patients. CONCLUSIONS Our data indicate that TNF-α and TNF-β gene polymorphisms are not a significant risk factor for migraine without aura in Greek children.
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Affiliation(s)
- Styliani Pappa
- School of Medicine, Aristotle University, Thessaloniki, Greece
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Montazeri S, Nalliah S, Radhakrishnan AK. Association between polymorphisms in human tumor necrosis factor-alpha (--308) and -beta (252) genes and development of gestational diabetes mellitus. Diabetes Res Clin Pract 2010; 88:139-45. [PMID: 20189261 DOI: 10.1016/j.diabres.2010.01.028] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2009] [Revised: 01/21/2010] [Accepted: 01/28/2010] [Indexed: 11/15/2022]
Abstract
OBJECTIVE The aim of this study is to investigate if an association exists between single nucleotide polymorphism (SNP) in the tumor necrosis factor-alpha (TNF-alpha) and TNF-beta genes. METHODS The DNA was extracted and SNP in the human TNF-alpha and TNF-beta genes at positions -308 (G/A) and 252 (A/G), respectively, was analyzed using the polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method. Plasma levels of TNF-alpha in different stages of pregnancy were quantified using enzyme linked immunosorbent assay (ELISA). RESULTS There was no significant difference in genotype and allele frequency of SNP at position -308 (G/A) in the promoter region of the human TNF-alpha gene as well as the SNP at position 252 (A/G) in the human TNF-beta gene between the GDM and control subjects. Using the logistic regression model, it was found that the SNP in the TNF-alpha as well as TNF-beta were not associated with development of GDM. In addition, the TNF-alpha levels in the plasma of GDM and control mothers were not significantly different. CONCLUSIONS In the population studied, the SNP in position -308 (G/A) of the human TNF-alpha or in position 252 (A/G) of the human TNF-beta gene is not an independent risk factor or a predictor for GDM.
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Affiliation(s)
- Shabnam Montazeri
- Department of Obstetrics and Gynaecology, Faculty of Medicine and Health, International Medical University, 126, Jalan 19/155B, Bukit Jalil, 57000 Kuala Lumpur, Malaysia.
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Gupta R, Kapuria V, Das SN. Single Nucleotide Polymorphisms inTNF-α,TNFR2Gene and TNF-α Production in Asian Indians. Immunol Invest 2009; 38:240-54. [DOI: 10.1080/08820130902766563] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Gu F, Qureshi AA, Kraft P, Guo Q, Hunter DJ, Han J. Polymorphisms in genes involved in DNA repair, cell growth, oxidative stress and inflammatory response, and melanoma risk. Br J Dermatol 2009; 161:209-12. [PMID: 19438866 DOI: 10.1111/j.1365-2133.2009.09219.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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18
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Cederholm T, Persson M, Andersson P, Stenvinkel P, Nordfors L, Madden J, Vedin I, Wretlind B, Grimble RF, Palmblad J. Polymorphisms in cytokine genes influence long-term survival differently in elderly male and female patients. J Intern Med 2007; 262:215-23. [PMID: 17645589 DOI: 10.1111/j.1365-2796.2007.01803.x] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
OBJECTIVES We asked if single nucleotide polymorphisms (SNP) in inflammatory cytokine genes related to 3-year survival in ill elderly subjects and if genotypes differed between the elderly and a younger control population. DESIGN Prospective observational study. SETTING Two geriatric departments at a university hospital. SUBJECTS Eighty three acutely admitted geriatric patients (83 +/- 7 year, 70% women) and 207 young healthy subjects (40 +/- 1 year, 37% women) were included. OUTCOME MEASURES Single nucleotide polymorphisms in the genes of tumour necrosis factor (TNF)-alpha-308 G/A, interleukin (IL)-1beta-511 C/T, IL-6-174 G/C and IL-10-1082 A/G were analysed. In the geriatric patients SNP in lymphotoxin (LT)-alpha +252 G/A and serum levels of TNF-alpha, IL-6, IL-10, soluble IL-I receptor(R)II were also determined, as well as the 3-year mortality. RESULTS The allele distribution did not differ significantly between the elderly and the young. In the female elderly, 3-year survival was doubled (P < 0.05) in those with the high-producing genotypes of IL-6 -174 GG and TNF-alpha -308 GA compared with those with low-producing alleles. In contrast, men with high-producing LT-alpha +252 AA and IL-1beta-511 CT&TT genotypes displayed halved 3-year survival (P < 0.05) compared with those with low-producing genotypes, whereas possession of the high-producing IL-10 -1082 GG genotype favoured survival. Serum IL-10 was higher in the high-producing IL-10 genotype in females. CONCLUSION As high-producing IL-6 -174 genotype favoured 3-year survival in women, whereas the likewise high-producing LT-alpha +252 and IL-1beta -511 genotypes were associated with poor survival in men, we conclude that the specific genotypes, in association with gender, may act as determinants for survival in elderly patients.
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Affiliation(s)
- T Cederholm
- Department of Public Health and Caring Sciences, Uppsala University Hospital, Uppsala, Sweden.
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Madden J, Brunner A, Dastur ND, Tan RM, Nash GB, Rainger GE, Shearman CP, Calder PC, Grimble RF. Fish oil induced increase in walking distance, but not ankle brachial pressure index, in peripheral arterial disease is dependent on both body mass index and inflammatory genotype. Prostaglandins Leukot Essent Fatty Acids 2007; 76:331-40. [PMID: 17600695 DOI: 10.1016/j.plefa.2007.04.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2006] [Revised: 03/09/2007] [Accepted: 04/25/2007] [Indexed: 10/23/2022]
Abstract
Peripheral arterial disease (PAD) is an atherosclerotic disease. Evidence suggests that atherosclerosis is an inflammatory condition and long chain n-3 fatty acids, found in oily fish and fish oils, have been shown to reduce inflammation. Genetic and lifestyle factors such as body mass index (BMI) also influence inflammation. In this study we have examined the effect of fish oil in patients with claudication secondary to PAD. Fish oil supplementation, providing 1g EPA and 0.7 g DHA per day for 12 weeks, increased walking distance on a treadmill set at 3.2 km/h with a 7% incline. Walking distance to first pain increased from 76.2+/-8.5 m before fish oil to 140.6+/-25.5 m after fish oil (mean+/-SEM, p=0.004) and total distance walked increased from 160.0+/-21.5 m before fish oil to 242.1+/-34.5 m after fish oil (p=0.002). Fish oil supplementation also improved ankle brachial pressure index (ABPI) from 0.599+/-0.017 before fish oil to 0.776+/-0.030 after fish oil (p<0.001). The increase in walking distance was dependent on both BMI and genotype for single nucleotide polymorphisms in the genes encoding the pro-inflammatory cytokines tumour necrosis factor-alpha and interleukin (IL)-1beta and the anti-inflammatory cytokine IL-10 (detected using amplification refractory mutation system polymerase chain reaction). Neither BMI nor any of the genotypes examined affected the ability of fish oil to increase ABPI. The mechanisms by which fish oil affects walking distance and ABPI do not appear to be the same.
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Affiliation(s)
- Jacqueline Madden
- Institute of Human Nutrition, School of Medicine, University of Southampton, and Department of Vascular Surgery, Southampton General Hospital, Southampton, UK.
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20
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Berrahmoune H, Herbeth B, Lamont JV, Fitzgerald PS, Visvikis-Siest S. Association between TNF and IL-1 bloc polymorphisms and plasma MCP-1 concentration. Atherosclerosis 2007; 192:348-53. [PMID: 16814297 DOI: 10.1016/j.atherosclerosis.2006.05.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2006] [Revised: 04/19/2006] [Accepted: 05/03/2006] [Indexed: 11/20/2022]
Abstract
BACKGROUND Circulating MCP-1 concentration was found to be increased in cardiovascular diseases and is of high interest in the list of biomarkers of atherosclerosis. TNF-alpha, LT-alpha, IL-1alpha and IL-1beta are four proinflammatory cytokines that regulate MCP-1 concentration in vitro. We hypothesized that specific genetic polymorphisms in TNF, LTA, IL-1A and IL-1B genes could modulate plasma MCP-1 concentration. METHODS Plasma MCP-1 concentration was quantified with a biochip array analyzer in 395 adults from the Stanislas family study. TNF -308G>A, LTA 252A>G (A=TNFB2, G=TNFB1), IL-1A -889C>T and IL-1B 3954C>T were genotyped with a prototypic multilocus genotyping assay. RESULTS Among the four polymorphisms studied only LTA 252A>G and TNF -308G>A were significantly associated with plasma MCP-1 concentration (p=0.005 and p=0.038, respectively) after adjustment for covariates (age, sex, smoking, monocyte count and hematocrit). Carriers of the 252A allele or the -308G had lower MCP-1 concentrations than carriers of the 252G or the -308A alleles, respectively. Moreover, as TNF and LTA genes were in linkage disequilibrium, the TNF bloc haplotypes were compared with respect to MCP-1 concentration, and a significant association (p=0.021) was observed, due only to the LTA polymorphism. This association remained significant even after adjustment for TNF-alpha and hs-CRP concentrations. CONCLUSION A functional polymorphism within the TNF bloc could modulate MCP-1 concentration and seems more likely to be near to the LTA 252A>G polymorphism than to the TNF -308G>A one. In addition, the association found in healthy French adults is independent of other actors of inflammation such as TNF-alpha and hs-CRP.
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Nikolova PN, Pawelec GP, Mihailova SM, Ivanova MI, Myhailova AP, Baltadjieva DN, Marinova DI, Ivanova SS, Naumova EJ. Association of cytokine gene polymorphisms with malignant melanoma in Caucasian population. Cancer Immunol Immunother 2007; 56:371-9. [PMID: 16835788 PMCID: PMC11029850 DOI: 10.1007/s00262-006-0193-z] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2006] [Accepted: 06/07/2006] [Indexed: 01/30/2023]
Abstract
It has been hypothesized that polymorphisms expected to result in functional changes in cytokine genes may influence susceptibility to cancer, including malignant melanoma (MM). Here, we have screened 24 potentially functional polymorphisms in five cytokine genes by PCR-SBT and PCR-SSP methods in 122 MM cell lines derived from Caucasian patients. The polymorphic positions studied were: TNFA -1031, -863, -857, -851, -574, -376, -308, -238, +488; TGFB1 -988, -800, -509, +869, +915, +652, +673, +713, +788; IL10 -1082, -819, -592; IL6 -174; IFNG -333, +874. The frequencies of cytokine genotypes of melanoma tumours were compared with those published for healthy Caucasians. It was found that TNFA -238 GA, TGFB1 -509 CT, -800 GG, IFNG +874 AT, IL6 -174 GG, IL10 -1082 GA genotypes were significantly decreased, while TNFA -238 AA, -857 CC, TGFB1 -509 TT, IFNG +874 AA, IL6 -174 CC, IL10 -1082 AA, -819 TT, -592 AA genotypes were significantly increased, in MM. This suggests that genotypes provisionally associated with low expression of pro-inflammatory and immunomodulatory TNF-alpha, IFN-gamma and IL-6 and anti-inflammatory IL-10 and TGF-beta1 could be involved in the mechanisms of cancer progression and escape from immunosurveillance.
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Affiliation(s)
- Penka N Nikolova
- Central Laboratory of Clinical Immunology, University Hospital Alexandrovska, 1 Georgy Sofiisky Str., 1431 Sofia, Bulgaria.
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22
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Broekhuizen R, Grimble RF, Howell WM, Shale DJ, Creutzberg EC, Wouters EF, Schols AM. Pulmonary cachexia, systemic inflammatory profile, and the interleukin 1beta -511 single nucleotide polymorphism. Am J Clin Nutr 2005; 82:1059-64. [PMID: 16280439 DOI: 10.1093/ajcn/82.5.1059] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Cachexia is common in chronic obstructive pulmonary disease (COPD) and is thought to be linked to an enhanced systemic inflammatory response. OBJECTIVE We investigated differences in the systemic inflammatory profile and polymorphisms in related inflammatory genes in COPD patients. DESIGN A cross-sectional study was performed in 99 patients with COPD (Global Initiative for Chronic Obstructive Lung Disease stages II-IV), who were stratified by cachexia based on fat-free mass index (FFMI; in kg/m2: <16 for men and <15 for women) and compared with healthy control subjects (HCs). Body composition was determined by bioelectrical impedance analysis. Plasma concentrations and gene polymorphisms of interleukin 1beta (IL-1beta -511), IL-6 (IL-6 -174), and the tumor necrosis factor system (TNF-alpha -308 and lymphotoxin-alpha +252) were determined. Plasma C-reactive protein, leptin, and urinary pseudouridine (as a marker of cellular protein breakdown) were measured. RESULTS Fat mass, leptin, and pseudouridine were significantly different (P < 0.001) between noncachectic patients (NCPs) and cachectic patients (CPs: n = 35); the systemic inflammatory cytokine profile was not. NCPs had a body compositional shift toward a lower fat-free mass and a higher fat mass compared with HCs. CPs and NCPs had a greater systemic inflammatory response (P < 0.05) than did HCs, as reflected in C-reactive protein, soluble TNF-R75, and IL-6 concentrations. The overall distribution of the IL-1beta -511 polymorphism was significantly different between the groups (P < 0.05). CONCLUSIONS In COPD patients, who are characterized by an elevated systemic inflammatory response, cachexia is not discriminatory for the extent of increase in inflammatory status. This study, however, indicates a potential influence of genetic predisposition on the cachexia process.
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Affiliation(s)
- Roelinka Broekhuizen
- Department of Respiratory Medicine, University Hospital Maastricht, The Netherlands.
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Slominski A, Tobin DJ, Shibahara S, Wortsman J. Melanin pigmentation in mammalian skin and its hormonal regulation. Physiol Rev 2004; 84:1155-228. [PMID: 15383650 DOI: 10.1152/physrev.00044.2003] [Citation(s) in RCA: 1350] [Impact Index Per Article: 67.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Cutaneous melanin pigment plays a critical role in camouflage, mimicry, social communication, and protection against harmful effects of solar radiation. Melanogenesis is under complex regulatory control by multiple agents interacting via pathways activated by receptor-dependent and -independent mechanisms, in hormonal, auto-, para-, or intracrine fashion. Because of the multidirectional nature and heterogeneous character of the melanogenesis modifying agents, its controlling factors are not organized into simple linear sequences, but they interphase instead in a multidimensional network, with extensive functional overlapping with connections arranged both in series and in parallel. The most important positive regulator of melanogenesis is the MC1 receptor with its ligands melanocortins and ACTH, whereas among the negative regulators agouti protein stands out, determining intensity of melanogenesis and also the type of melanin synthesized. Within the context of the skin as a stress organ, melanogenic activity serves as a unique molecular sensor and transducer of noxious signals and as regulator of local homeostasis. In keeping with these multiple roles, melanogenesis is controlled by a highly structured system, active since early embryogenesis and capable of superselective functional regulation that may reach down to the cellular level represented by single melanocytes. Indeed, the significance of melanogenesis extends beyond the mere assignment of a color trait.
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Affiliation(s)
- Andrzej Slominski
- Dept. of Pathology, Suite 599, University of Tennessee Health Science Center, 930 Madison Avenue, Memphis, TN 38163, USA.
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Yang IA, Holz O, Jörres RA, Magnussen H, Barton SJ, Rodríguez S, Cakebread JA, Holloway JW, Holgate ST. Association of tumor necrosis factor-alpha polymorphisms and ozone-induced change in lung function. Am J Respir Crit Care Med 2004; 171:171-6. [PMID: 15486341 DOI: 10.1164/rccm.200402-194oc] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Ozone is a major air pollutant with adverse health effects which exhibit marked inter-individual variability. In mice, regions of genetic linkage with ozone-induced lung injury include the tumor necrosis factor-alpha (TNF), lymphotoxin-alpha (LTA), Toll-like receptor 4 (TLR4), superoxide dismutase (SOD2), and glutathione peroxidase (GPX1) genes. We genotyped polymorphisms in these genes in 51 individuals who had undergone ozone challenge. Mean change in FEV1 with ozone challenge, as a percentage of baseline, was -3% in TNF -308G/A or A/A individuals, compared with -9% in G/G individuals (p = 0.024). When considering TNF haplotypes, the smallest change in FEV1 with ozone exposure was associated with the TNF haplotype comprising LTA +252G/TNF -1031T/TNF -308A/TNF -238G. This association remained statistically significant after correction for age, sex, disease, and ozone concentration (p = 0.047). SOD2 or GPX1 genotypes were not associated with lung function, and the TLR4 polymorphism was too infrequent to analyze. The results of this study support TNF as a genetic factor for susceptibility to ozone-induced changes in lung function in humans, and has potential implications for stratifying health risks of air pollution.
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Affiliation(s)
- Ian A Yang
- Asthma Genetics Laboratory, Human Genetics Division, University of Southampton, United Kingdom.
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25
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Abstract
Tumor necrosis factor (TNF), a potent immuno-modulator and pro-inflammatory cytokine, has been implicated in many pathological processes. The TNFA and the TNFB genes, which encode TNFalpha and TNFbeta, respectively, are both located on the short arm of chromosome 6 between the class I and class II regions of the HLA complex. A striking feature of the entire HLA complex is a high degree of genetic variation. Two biallelic polymorphisms in the TNFA (- 308G/A) and TNFB (+ 252A/G) genes have been reported to be associated with TNF production and with susceptibility to inflammatory diseases. Population information on polymorphisms is essential for the study of genetic diseases. The aim of this study is to obtain accurate information about polymorphisms in the TNF genes in the Korean population. Allele frequencies of TNFA (- 308G/A) and TNFB (+ 252A/G) were measured in 581 unrelated Korean individuals by PCR-RFLP. Allele frequencies of each polymorphism were determined and compared with those previously reported in other populations. A significant difference was found for the allele frequencies of TNFA and TNFB gene in Koreans compared with Europeans. The - 308/A allele in the TNFA gene was very rare in Asians (0.008-0.096). The frequency of the - 308/A allele in Koreans was considerably lower than in Europeans (0.120-0.189). Contrary to lower frequency of the -308/A allele, that of + 252/G allele in the TNFB gene was higher than in Koreans (0.445) compared with Europeans (0.29-0.39). The polymorphisms and allele frequencies obtained in this study will be useful for genetic studies of common inflammatory diseases.
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Affiliation(s)
- Jae-Young Um
- Department of Pharmacology, College of Oriental Medicine, Kyung Hee University, Seoul, South Korea
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Howell WM, Turner SJ, Theaker JM, Bateman AC. Cytokine gene single nucleotide polymorphisms and susceptibility to and prognosis in cutaneous malignant melanoma. ACTA ACUST UNITED AC 2004; 30:409-14. [PMID: 14675394 DOI: 10.1111/j.1365-2370.2003.00425.x] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Cutaneous malignant melanoma (CMM) is a potentially fatal malignancy in which exposure to UV light is the most important risk factor. Several lines of evidence suggest that CMM patients develop an immune response to their tumours, although, in most cases, anti-tumour immune responses are insufficient to abrogate tumour development. Polymorphism in genes regulating the immune response and cell growth may result in increased susceptibility to and/or poorer prognosis in certain individuals. In this study, we addressed whether single nucleotide polymorphisms (SNPs) associated with differential expression of selected pro- and anti-inflammatory cytokines and growth factors [interleukin (IL)-1beta-35 and -511, IL-2 -330, IL-4 -590, IL-6 -174, IL-8 -251, interferon (IFN)-gamma+874 and transforming growth factor (TGF)beta1 +915] or as markers of candidate cytokine genes (IL-12 +1188) are associated with susceptibility to or known prognostic indicators (e.g. initial tumour growth phase, Breslow thickness, mitotic count in vertical growth phase tumours, tumour regression) in CMM. One hundred and sixty-nine British caucasian CMM patients and 261 controls were included in the study and all SNPs were genotyped by ARMS-PCR. No SNP genotypes or alleles showed significant associations with CMM susceptibility and only the IL-1beta-511 TT genotype was associated with thinner invasive tumours at presentation, as assessed by Breslow thickness at the clinically significant cut-off point of 1.5 mm [occurring in 2/51 (3.9%) thicker vs. 14/78 (17.9%) thinner tumours (P = 0.03; relative risk = 0.29 (95% confidence interval 0.05-0.95)]. These findings suggest that - with the possible exception of IL-1beta- genetic variation associated with differential expression of the selected pro- and anti-inflammatory cytokines is unlikely to play a major role in susceptibility to and prognosis in CMM.
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Affiliation(s)
- W M Howell
- Department of Human Genetics, University of Southampton, UK.
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Beghé B, Padoan M, Moss CT, Barton SJ, Holloway JW, Holgate ST, Howell WM, Mapp CE. Lack of association of HLA class I genes and TNF alpha-308 polymorphism in toluene diisocyanate-induced asthma. Allergy 2004; 59:61-4. [PMID: 14674935 DOI: 10.1046/j.1398-9995.2003.00352.x] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND Toluene diisocyanate (TDI)-induced asthma is a common cause of occupational asthma and it affects 5-15% of the exposed population suggesting an underlying genetic susceptibility. METHODS To investigate the role of genetic factors in the development of TDI-induced asthma, we analyzed the distribution of human leukocyte antigen (HLA) class I genes and of tumor necrosis factor (TNF)-alpha A-308G polymorphism in 142 patients with TDI-induced asthma and in 50 asymptomatic exposed subjects. RESULTS Neither the distribution of HLA class I antigens nor the distribution of TNF-alpha A-308G polymorphism was different between patients with TDI-induced asthma and asymptomatic exposed subjects. CONCLUSIONS These results suggest that HLA class I antigens and TNF-alpha A-308G are not associated with susceptibility or resistance to the development of TDI-induced asthma.
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Affiliation(s)
- B Beghé
- Section of Respiratory Diseases, Department of Clinical and Experimental Medicine,University of Padua, Padua, Italy
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Sondak VK, Sosman JA. Results of clinical trials with an allogeneic melanoma tumor cell lysate vaccine: Melacine®. Semin Cancer Biol 2003; 13:409-15. [PMID: 15001159 DOI: 10.1016/j.semcancer.2003.09.004] [Citation(s) in RCA: 86] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
The identification of proteins and carbohydrates associated with melanoma led to development of defined antigen vaccines. However, vaccines derived from whole allogeneic cells have a number of advantages. Melacine is an allogeneic melanoma tumor cell lysate combined with an immunologic adjuvant, DETOX. Phase I and II trials in stage IV melanoma showed low-level antitumor activity, but this vaccine has its greatest promise in the adjuvant setting. A phase III trial indicated a survival benefit for Melacine in the subset of melanoma patients who express the HLA class I antigens A2 and/or HLA-C3. This finding must now be prospectively confirmed.
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Affiliation(s)
- Vernon K Sondak
- Division of Surgical Oncology, University of Michigan Health System, 3306 Cancer Center, 1500 East Medical Center Drive, Ann Arbor, MI 48109-0932, USA.
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29
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Abstract
Genes whose products play a critical role in regulation of the immune response include the human leucocyte antigen (HLA) and cytokine families of genes. The HLA genes are the most polymorphic found in the human genome, and the bulk of this polymorphism results in functional differences in expressed HLA molecules, resulting in inter-individual differences in presentation of peptide antigens to T-cells. In addition, a considerable number of cytokine-associated gene polymorphisms have been identified, the bulk of which occur in the upstream promoter sequences of these genes, which in many cases results in differential in vitro expression of the respective pro- or anti-inflammatory gene product. Particular HLA polymorphisms result in well-defined associations with a large number of immunologically-mediated diseases, including some diseases with known dietary risk factors. For example, individuals of HLA-DQA1*0501, DQB1*0201 genotype have a greater than 200-fold increased risk of developing intolerance to dietary wheat gluten (coeliac disease), and additional HLA-related factors may influence the development of malignant lymphoma within pre-existing coeliac disease. Similarly, HLA-DRB1 alleles sharing a common sequence motif constitute the primary known genetic risk factor for rheumatoid arthritis. The influence of polymorphisms associated with differential cytokine expression on disease susceptibility is currently of much interest. Most attention has been focused on associations with susceptibility to benign immunologically-mediated diseases, including a number of gut diseases. However, recent work from our laboratory indicates that cytokine polymorphisms may influence susceptibility to and prognosis in a number of different cancers, including malignant melanoma skin cancer and solid tumours which may be influenced by diet, such as prostate cancer (collaboration with the CRC/BPG UK Familial Prostate Cancer study). In addition, preliminary work suggests that dietary modulation of expression levels of certain cytokines in healthy human subjects may be genotype dependent.
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Affiliation(s)
- W Martin Howell
- Histocompatibilizy & Immunogenetics Laboratory/Human Genetics Division, Southampton University Hospitals, Southampton SO16 6YD, UK.
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30
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Grimble RF, Howell WM, O'Reilly G, Turner SJ, Markovic O, Hirrell S, East JM, Calder PC. The ability of fish oil to suppress tumor necrosis factor alpha production by peripheral blood mononuclear cells in healthy men is associated with polymorphisms in genes that influence tumor necrosis factor alpha production. Am J Clin Nutr 2002; 76:454-9. [PMID: 12145022 DOI: 10.1093/ajcn/76.2.454] [Citation(s) in RCA: 167] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Tumor necrosis factor alpha (TNF-alpha) mediates inflammation. High TNF-alpha production has adverse effects during disease. Polymorphisms in the TNF-alpha and lymphotoxin alpha genes influence TNF-alpha production. Fish oil suppresses TNF-alpha production and has variable antiinflammatory effects on disease. OBJECTIVE We examined the relation between TNF-alpha and lymphotoxin alpha genotypes and the ability of dietary fish oil to suppress TNF-alpha production by peripheral blood mononuclear cells (PBMCs) in healthy men. DESIGN Polymorphisms in the TNF-alpha (TNF*1 and TNF*2) and lymphotoxin alpha (TNFB*1 and TNFB*2) genes were determined in 111 healthy young men. TNF-alpha production by endotoxin-stimulated PBMCs was measured before and 12 wk after dietary supplementation with fish oil (6 g/d). RESULTS Homozygosity for TNFB*2 was 2.5 times more frequent in the highest than in the lowest tertile of inherent TNF-alpha production. The percentage of subjects in whom fish oil suppressed TNF-alpha production was lowest (22%) in the lowest tertile and doubled with each ascending tertile. In the highest and lowest tertiles, mean TNF-alpha production decreased by 43% (P < 0.05) and increased by 160% (P < 0.05), respectively. In the lowest tertile of TNF-alpha production, only TNFB*1/TNFB*2 heterozygous subjects were responsive to the suppressive effect of fish oil. In the middle tertile, this genotype was 6 times more frequent than the other lymphotoxin alpha genotypes among responsive individuals. In the highest tertile, responsiveness to fish oil appeared unrelated to lymphotoxin alpha genotype. CONCLUSION The ability of fish oil to decrease TNF-alpha production is influenced by inherent TNF-alpha production and by polymorphisms in the TNF-alpha and lymphotoxin alpha genes.
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Affiliation(s)
- Robert F Grimble
- Institute of Human Nutrition, School of Medicine, and the Biochemistry and Molecular Biology Division, School of Biological Sciences, University of Southampton, Southampton, United Kingdom.
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