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Aflatoonian M, Sivandzadeh G, Morovati-Sharifabad M, Mirjalili SR, Akbarian-Bafghi MJ, Neamatzadeh H. ASSOCIATIONS OF IL-6 -174G>C AND IL-10 -1082A>G POLYMORPHISMS WITH SUSCEPTIBILITY TO CELIAC DISEASE: EVIDENCE FROM A META-ANALYSIS AND LITERATURE REVIEW. ARQUIVOS DE GASTROENTEROLOGIA 2019; 56:323-328. [PMID: 31633733 DOI: 10.1590/s0004-2803.201900000-60] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 07/15/2019] [Indexed: 11/22/2022]
Abstract
BACKGROUND There has been little evidence to suggest that the IL-6 -174G>C and IL-10 -1082A>G polymorphisms are significantly associated with susceptibility to celiac disease. Thus, we performed the present meta-analysis to explore the potential association between these polymorphisms and celiac disease risk. METHODS Eligible studies were searched in PubMed, Medline, Embase, Web of Science and CNKI database up to April 20, 2019. Odds ratios with 95% confidence interval were calculated to assess the potential associations. Moreover, we performed the heterogeneity, sensitivity, and publication bias tests to clarify and validate the pooled results. RESULTS Overall, nine case-control studies involving five studies with 737 cases and 1,338 control on IL-6 -174G>C polymorphism and four studies with 923 cases and 864 controls on IL-10 -1082A>G polymorphism were selected. The pooled ORs showed that the IL-6 -174G>C and IL-10 -1082A>G polymorphisms were not significantly associated with increased risk of celiac disease under all five genetic models. There was no publication bias. CONCLUSION To the best of our knowledge, this is the first meta-analysis summarizing all of the available studies on the association of IL-6 -174G>C and IL-10 -1082A>G polymorphisms with celiac disease. Our results suggest that the IL-6 -174G>C and IL-10 -1082A>G polymorphisms may not be associated with increased risk of celiac disease. Moreover, large and well-designed studies are needed to fully describe the association of IL-6 -174G>C and IL-10 -1082A>G polymorphisms with celiac disease.
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Affiliation(s)
- Majid Aflatoonian
- Shahid Sadoughi University of Medical Sciences, Department of Pediatrics, Yazd, Iran
| | - Gholamreza Sivandzadeh
- Shiraz University of Medical Sciences, Gastroenterohepatology Research Center, Shiraz, Iran
| | | | - Seyed Reza Mirjalili
- Shahid Sadoughi University of Medical Sciences, Department of Pediatrics, Yazd, Iran.,Shahid Sadoughi University of Medical Sciences, Mother and Newborn Health Research Center, Yazd, Iran
| | | | - Hossein Neamatzadeh
- Shahid Sadoughi University of Medical Sciences, Mother and Newborn Health Research Center, Yazd, Iran.,Shahid Sadoughi University of Medical Sciences, Department of Medical Genetics, Yazd, Iran
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Aflatoonian M, Moghimi M, Akbarian-Bafghi MJ, Morovati-Sharifabad M, Jarahzadeh MH, Neamatzadeh H. ASSOCIATION OF TNF- α-308G>A POLYMORPHISM WITH SUSCEPTIBILITY TO CELIAC DISEASE: A SYSTEMATIC REVIEW AND META-ANALYSIS. ARQUIVOS DE GASTROENTEROLOGIA 2019; 56:88-94. [PMID: 31141070 DOI: 10.1590/s0004-2803.201900000-20] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Accepted: 02/27/2019] [Indexed: 11/22/2022]
Abstract
BACKGROUND There is increasing evidence to show that TNF-α -308G>A polymorphism may be a risk factor for celiac disease, but the results are inconsistent. OBJECTIVE Thus, we aimed to perform a meta-analysis involving published studies up to January 2019 to elucidate the association. METHODS To assess the effect of TNF-α -308G>A polymorphism on celiac disease susceptibility, we searched PubMed, ISI Web of Knowledge, Chinese National Knowledge Infrastructure (CNKI) databases to identify eligible studies, without restriction. Summary odds ratios (ORs) and 95% confidence intervals (CIs) were used to evaluate the susceptibility to celiac disease. RESULTS A total of 11 studies with 1147 cases and 1774 controls were selected for this meta-analysis. The pooled results indicated that TNF-α -308G>A polymorphism was associated with increased risk of celiac disease (A vs G: OR=2.077, 95% CI=1.468-2.939, P=≤0.001; AA vs GG: OR=8.512, 95% CI=3.740-19.373, P=≤0.001; AA+AG vs GG: OR=1.869, 95% CI=1.161-3.008, P=0.010; and AA+AG vs GG: OR=4.773, 95% CI=3.181-7.162, P≤0.001). Subgroup analysis by ethnicity also revealed significant association in Caucasians. In addition, there was a significant association between TNF-α -308G>A polymorphism and celiac disease risk in Italy, Spain and PCR-FRLP group studies. CONCLUSION Our meta-analysis suggests that the TNF-α -308G>A polymorphism plays an important role in celiac disease susceptibility. However, our results are still needed to strengthen by further studies in different ethnicities and larger sample sizes.
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Affiliation(s)
- Majid Aflatoonian
- Shahid Sadoughi University of Medical Sciences, Department of Pediatrics, Yazd, Iran
| | - Mansour Moghimi
- Shahid Sadoughi University of Medical Sciences, Department of Pathology, Yazd, Iran
| | | | | | | | - Hossein Neamatzadeh
- Shahid Sadoughi University of Medical Sciences, Department of Medical Genetics, Yazd, Iran
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3
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TNF-α -308 G > A (rs1800629) Polymorphism is Associated with Celiac Disease: A Meta-analysis of 11 Case-Control Studies. Sci Rep 2016; 6:32677. [PMID: 27597177 PMCID: PMC5011702 DOI: 10.1038/srep32677] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Accepted: 08/12/2016] [Indexed: 12/21/2022] Open
Abstract
Celiac disease (CD) remains one of the most significant autoimmune diseases worldwide. The pathogenesis of CD is not clearly understood and is probably attributed to genomic variations and host genetic make-up. Case-control and cohort studies of the association between the TNF-α -308 G > A (rs1800629) polymorphism and CD susceptibility have yielded inconsistent results. In this study, PubMed, EMBASE, and Google Scholar web-databases were searched for pertinent reports showing association of TNF-α -308 G > A gene with CD risk. A total of eleven reports involving 1774 controls and 1147 CD cases were included. Significant associations in four genetic models, viz. variant allele (A vs. G: p = 0.001; OR = 2.051, 95% CI = 1.452-2.895), variant homozygous (AA vs. GG: p = 0.001; OR = 6.626, 95% CI = 3.569-12.300), recessive (AA vs. GG + AG: p = 0.001; OR = 4.766, 95% CI = 3.177-7.152) and dominant (AA + AG vs. GG: p = 0.008; OR = 1.910, 95% CI = 1.181-3.088) were found in comparison with wild type homozygous GG genotype. However, heterozygous genetic model did not show any association. Sensitivity analysis revealed stable and statistically robust results. Our results suggest that TNF-α -308 G > A gene polymorphism significantly contributes to CD susceptibility.
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Rossi E, Basso D, Zambon CF, Navaglia F, Greco E, Pelloso M, Artuso S, Padoan A, Pescarin M, Aita A, Bozzato D, Moz S, Cananzi M, Guariso G, Plebani M. TNFA Haplotype Genetic Testing Improves HLA in Estimating the Risk of Celiac Disease in Children. PLoS One 2015; 10:e0123244. [PMID: 25915602 PMCID: PMC4411089 DOI: 10.1371/journal.pone.0123244] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Accepted: 02/28/2015] [Indexed: 12/13/2022] Open
Abstract
Background TNF-α and IFN-γ play a role in the development of mucosal damage in celiac disease (CD). Polymorphisms of TNFA and IFNG genes, as well as of the TNFRSF1A gene, encoding the TNF-α receptor 1, might underlie different inter-individual disease susceptibility over a common HLA risk background. The aims of this study were to ascertain whether five SNPs in the TNFA promoter (-1031T>C,-857C>T,-376G>A,-308G>A,-238G>A), sequence variants of the TNFRSF1A gene and IFNG +874A>T polymorphism are associated with CD in a HLA independent manner. Methods 511 children (244 CD, 267 controls) were genotyped for HLA, TNFA and INFG (Real Time PCR). TNFRSF1A variants were studied (DHPLC and sequence). Results Only the rare TNFA-1031C (OR=0.65, 95% CI:0.44-0.95), -857T (OR=0.42, 95% CI:0.27-0.65), -376A (OR=2.25, 95% CI:1.12-4.51) and -308A (OR=4.76, 95% CI:3.12-7.26) alleles were significantly associated with CD. One TNFRSF1A variant was identified (c.625+10A>G, rs1800693), but not associated with CD. The CD-correlated TNFA SNPs resulted in six haplotypes. Two haplotypes were control-associated (CCGG and TTGG) and three were CD-associated (CCAG, TCGA and CCGA). The seventeen inferred haplotype combinations were grouped (A to E) based on their frequencies among CD. Binary logistic regression analysis documented a strong association between CD and HLA (OR for intermediate risk haplotypes=178; 95% CI:24-1317; OR for high risk haplotypes=2752; 95% CI:287-26387), but also an HLA-independent correlation between CD and TNFA haplotype combination groups. The CD risk for patients carrying an intermediate risk HLA haplotype could be sub-stratified by TNFA haplotype combinations. Conclusion TNFA promoter haplotypes associate with CD independently from HLA. We suggest that their evaluation might enhance the accuracy in estimating the CD genetic risk.
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Affiliation(s)
- Elisa Rossi
- Department of Medicine—DIMED, University of Padova, Padova, Italy
| | - Daniela Basso
- Department of Laboratory Medicine, University—Hospital of Padova, Padova, Italy
- * E-mail:
| | | | - Filippo Navaglia
- Department of Laboratory Medicine, University—Hospital of Padova, Padova, Italy
| | - Eliana Greco
- Department of Medicine—DIMED, University of Padova, Padova, Italy
| | - Michela Pelloso
- Department of Medicine—DIMED, University of Padova, Padova, Italy
| | - Serena Artuso
- Unit of Pediatric Gastroenterology, Department of Women and Children's Health, University-Hospital of Padova, Padova, Italy
| | - Andrea Padoan
- Department of Medicine—DIMED, University of Padova, Padova, Italy
| | - Matilde Pescarin
- Unit of Pediatric Gastroenterology, Department of Women and Children's Health, University-Hospital of Padova, Padova, Italy
| | - Ada Aita
- Department of Medicine—DIMED, University of Padova, Padova, Italy
| | - Dania Bozzato
- Department of Medicine—DIMED, University of Padova, Padova, Italy
| | - Stefania Moz
- Department of Medicine—DIMED, University of Padova, Padova, Italy
| | - Mara Cananzi
- Unit of Pediatric Gastroenterology, Department of Women and Children's Health, University-Hospital of Padova, Padova, Italy
| | - Graziella Guariso
- Unit of Pediatric Gastroenterology, Department of Women and Children's Health, University-Hospital of Padova, Padova, Italy
| | - Mario Plebani
- Department of Medicine—DIMED, University of Padova, Padova, Italy
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Zupin L, Polesello V, Catamo E, Crovella S, Segat L. Interleukin-10 gene promoter polymorphisms in celiac patients from north-eastern Italy. Hum Immunol 2014; 75:656-61. [DOI: 10.1016/j.humimm.2014.04.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2013] [Revised: 01/16/2014] [Accepted: 04/06/2014] [Indexed: 02/08/2023]
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Wan X, Mao L, Li T, Qin L, Pan Y, Li B, Wu X. IL-10 gene polymorphisms and their association with immune traits in four rabbit populations. J Vet Med Sci 2013; 76:369-75. [PMID: 24240540 PMCID: PMC4013363 DOI: 10.1292/jvms.13-0304] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Interleukin-10 (IL-10) has
been recently identified as a multifunctional cytokine, because of its close link with
immunoregulation and anti-inflammatory responses. This study investigated the association
of IL-10 genetic polymorphisms with the immune traits of New Zealand white rabbits (N-W),
Fujian yellow rabbits (F-Y) and their reciprocal crosses (N-Y and Y-N, respectively). SNPs
on five exons of the IL-10 gene were genotyped in 204 healthy rabbits via PCR-SSCP and DNA
sequencing. Two SNPs (A1435G and G1519A, both were synonymous mutations) and six genotypes
(AA, BB, CC, AB, AC and BC) were found on exon 3 and one SNP (T base insertion between
loci 2532 and 2533, which caused a frameshift mutation), and three genotypes (OO, TT and
TO) were present on exon 4. Allele A was the most frequent allele on exon 3 (from 0.548 to
0.771), whereas O was the most frequent on exon 4 (from 0.808 to 0.968). These four
populations were all in Hardy-Weinberg equilibrium on both exon3 and exon4. Association
analysis between polymorphisms and immune parameters showed that SNPs on exon 3 were
significantly associated with immune traits, while SNP on exon 4 may not significantly
affect immune traits, but the mechanism is yet to be further studied.
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Affiliation(s)
- Xiaoying Wan
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu 225009, China
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7
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Brophy K, Ryan AW, Turner G, Trimble V, Patel KD, O'Morain C, Kennedy NP, Egan B, Close E, Lawlor G, MacMathuna P, Stevens FM, Abuzakouk M, Feighery C, Kelleher D, McManus R. Evaluation of 6 candidate genes on chromosome 11q23 for coeliac disease susceptibility: a case control study. BMC MEDICAL GENETICS 2010; 11:76. [PMID: 20478055 PMCID: PMC2880976 DOI: 10.1186/1471-2350-11-76] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/26/2009] [Accepted: 05/17/2010] [Indexed: 11/14/2022]
Abstract
Background Recent whole genome analysis and follow-up studies have identified many new risk variants for coeliac disease (CD, gluten intolerance). The majority of newly associated regions encode candidate genes with a clear functional role in T-cell regulation. Furthermore, the newly discovered risk loci, together with the well established HLA locus, account for less than 50% of the heritability of CD, suggesting that numerous additional loci remain undiscovered. Linkage studies have identified some well-replicated risk regions, most notably chromosome 5q31 and 11q23. Methods We have evaluated six candidate genes in one of these regions (11q23), namely CD3E, CD3D, CD3G, IL10RA, THY1 and IL18, as risk factors for CD using a 2-phase candidate gene approach directed at chromosome 11q. 377 CD cases and 349 ethnically matched controls were used in the initial screening, followed by an extended sample of 171 additional coeliac cases and 536 additional controls. Results Promotor SNPs (-607, -137) in the IL18 gene, which has shown association with several autoimmune diseases, initially suggested association with CD (P < 0.05). Follow-up analyses of an extended sample supported the same, moderate effect (P < 0.05) for one of these. Haplotype analysis of IL18-137/-607 also supported this effect, primarily due to one relatively rare haplotype IL18-607C/-137C (P < 0.0001), which was independently associated in two case-control comparisons. This same haplotype has been noted in rheumatoid arthritis. Conclusion Haplotypes of the IL18 promotor region may contribute to CD risk, consistent with this cytokine's role in maintaining inflammation in active CD.
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Affiliation(s)
- Karen Brophy
- Department of Clinical Medicine, Trinity Centre for Health Sciences, Trinity College Dublin, St James's Hospital, Dublin, Ireland
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8
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Scola L, Giacalone A, Marasà L, Mirabile M, Vaccarino L, Forte GI, Giannitrapani L, Caruso C, Montalto G, Lio D. Genetic determined downregulation of both type 1 and type 2 cytokine pathways might be protective against pancreatic cancer. Ann N Y Acad Sci 2009; 1155:284-8. [PMID: 19250218 DOI: 10.1111/j.1749-6632.2008.03686.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Many cytokine polymorphisms have been studied for associations with susceptibility to breast, gastric, liver, lung, prostate, and ovarian cancer without conclusive results. The cytokine network, indeed, is characterized by complex interactions, and the final biological effect of a single genetic variation depends on the balance among different molecular signals. As is well known, Th1/Th2 cytokine unbalanced production might predispose to different pathologies, cancer included. In general, a prolonged type 1 inflammatory response might allow that cells accumulating enough "genetic hits" are promoted to neoplastic transformation. On the other hand, IL-13-producing cells through the IL-13/IL-4 receptor-alpha (R-alpha) pathway might facilitate escape from tumor immunosurveillance. Here are reported data on the evaluation of the influence of some type 2 and type 1 cytokine genetic polymorphisms as risk factors for pancreatic cancer. There was no overall association between pancreatic cancer risk and single cytokine SNPs. On the other hand, in evaluating the influence of combined cytokine genotypes we found that the combined IL-10-1082GA heterozygous and IL-4 Ralpha-1902AA homozygous genotype is underrepresented in the pancreatic cancer subject group. As is well known, the IL-10-1082GA genotype is associated with an intermediate production of this regulatory cytokine, whereas the IL-10-1902AA genotype of the IL-4Ralpha gene is associated with a reduced efficiency in signal transduction when the receptor is engaged by IL-13 or IL-4. These results strongly suggest that a genetic background associated to a mild downregulation of type 1 and type 2 inflammatory signals might be protective against pancreatic cancer.
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Affiliation(s)
- Letizia Scola
- Cattedra di Patologia Clinica, General Pathology Section, Department of Pathobiology and Biomedical Methodologies, University of Palermo, Corso Tuköry, Palermo, Italy
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Cherñavsky AC, Páez MC, Periolo N, Correa P, Guillén L, Niveloni SI, Mauriño E, Bai JC, Anaya JM. The simultaneous presence of IL-1B and TNFA two-positions risk haplotypes enhances the susceptibility for celiac disease. Cytokine 2008; 42:48-54. [PMID: 18346907 DOI: 10.1016/j.cyto.2008.01.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2007] [Revised: 12/18/2007] [Accepted: 01/30/2008] [Indexed: 11/24/2022]
Abstract
To assess the joint contribution of interleukin 1 beta (IL-1B) and tumor necrosis factor alpha (TNFalpha) to the genetic risk of developing celiac disease (CD), we analyzed four biallelic polymorphisms of TNFA and IL-1B genes in 228 patients and 244 healthy controls. The individual contribution of TNFA -308A and IL-1B -511C alleles was weak (OR 1.47 and 1.66, respectively) and was null for TNFA -238 A/G and IL-1B +3953 C/T single nucleotide polymorphisms (SNPs). Due to the potential linkage disequilibrium between TNFA, human leukocyte antigen (HLA) -DQA1 and HLA-DQB1 genes, only individuals carrying DQ2 antigen (DQ2-positive) were considered to perform haplotype analyses. Two-position risk haplotypes were first defined by the combined presence of -511C and +3953T alleles for IL-1B (OR 9.402) or -308A and -238A alleles for TNFA (OR 15.389). The TNFA/IL-1B combined haplotype-stratified association analysis showed that the simultaneous presence of TNFA risk and IL-1B non-risk haplotypes (OR 13.32) but not TNFA non-risk and IL-1B risk haplotypes (OR 0.71) is associated with CD. Interestingly, our data suggest that the coexistence of both risk haplotypes seems to work synergistically (OR 29.59), which enhances the risk of developing CD.
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Affiliation(s)
- Alejandra Claudia Cherñavsky
- Immunogenetic Laboratory, Hospital de Clínicas José de San Martín, Universidad de Buenos Aires, Av. Cordoba 2351, 1120 Buenos Aires, Argentina.
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Naluai AT, Ascher H, Nilsson S, Wahlström J. Searching for genes influencing a complex disease: the case of coeliac disease. Eur J Hum Genet 2007; 16:542-53. [PMID: 17726483 DOI: 10.1038/sj.ejhg.5201918] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Recently, a few genes have been reported to be causative in inflammatory diseases. Still, we are waiting for the vast majority to be discovered. New tools for genotyping and statistical analysis have been developed and emphasis has been put on study design. Coeliac disease (CD) is a disorder, where prolamins in dietary wheat gluten and related proteins from rye or barley are not tolerated. It is one of the most common chronic diseases in humans exceeding a population prevalence of 1%. In this article, we will summarise what is currently known about the genetics influencing CD with the emphasis on the non-HLA genetic component. We will discuss some difficulties when searching for susceptibility genes in disorders with complex inheritance patterns.
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Affiliation(s)
- Asa Torinsson Naluai
- Department of Genomics, The Sahlgrenska Academy, Göteborg University, Göteborg, Sweden.
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Abstract
Celiac disease (CD) is a common autoimmune disorder characterized by an immune response to ingested gluten and has a strong HLA association with HLA-DQ2 and HLA-DQ8 molecules, but human HLA-DQ risk factors do not explain the entire genetic susceptibility to gluten intolerance. CD is caused by the lack of immune tolerance (oral tolerance) to wheat gluten. In this sense, the expression of soluble HLA-G in CD is of special interest because the molecule plays an important role in the induction of immune tolerance. The enhanced expression of soluble HLA-G found in CD may be part of a mechanism to restore the gluten intolerance. In this editorial, we review recent progress in understanding CD in relation to its prevalence, diagnosis and possible mechanisms of pathogenesis.
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Forte GI, Ragonese P, Salemi G, Scola L, Candore G, D'Amelio M, Crivello A, Di Benedetto N, Nuzzo D, Giacalone A, Lio D, Caruso C. Search for Genetic Factors Associated with Susceptibility to Multiple Sclerosis. Ann N Y Acad Sci 2006; 1067:264-9. [PMID: 16803996 DOI: 10.1196/annals.1354.034] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Multiple sclerosis (MS) is a cell-mediated autoimmune disease characterized by type-1 cytokine production. Environmental and individual genetic background might influence this response particularly in cytokine gene polymorphisms. We evaluated whether polymorphisms of interleukin (IL)-10, IL-12, and tumor necrosis factor (TNF)-alpha genes, which might play a role in MS pathogenesis, are associated with MS susceptibility. Genotype frequencies for all the analyzed polymorphisms were not differently distributed between cases and controls. It is reasonable to suppose that the cytokine single-nucleotide polymorphisms (SNPs) studied must be considered against a larger genetic background involving other functional SNPs of Th1 regulator elements such as IL-21 and IL-23.
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Affiliation(s)
- Giusi Irma Forte
- Gruppo di Studio sull'Immunosenescenza, Dipartimento di Biopatologia e Metodologie Biomediche, Università degli studi di Palermo, Italy
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13
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Nuzzo D, Cataldo F, Scola L, Forte GI, Crivello A, Giacalone A, Accomando S, Barbieri R, Candore G, Caruso C, Lio D. Analysis of candidate genes in celiac disease: a tool to identify life-threatening associated genes? Rejuvenation Res 2006; 9:153-6. [PMID: 16608413 DOI: 10.1089/rej.2006.9.153] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The authors have recently reported that celiac patients show a proinflammatory cytokine genetic profile characterized by the contemporaneous presence of both the tumour necrosis factor-alpha-308A and the interferon-gamma +874T allele-positive genotypes. The same alleles are considered risk factors for aging associated disease, whereas an anti-inflammatory cytokine genotype profile might be associated with an extended life expectancy. This paper reports data on the 1249-1250InsACAA/Non-Ins transforming growth factor (TGF)-beta2, a multifunctional anti-inflammatory cytokine, polymorphism distribution in 88 celiac disease (CD) patients, 99 age- and sex-matched controls, and 28 >95-year-old healthy subjects living in western Sicily. These data demonstrate that genotype frequencies of CD patients are not different from that of age-matched and >95-year-old healthy control subjects. These data might suggest that TGF-beta2 polymorphism is not involved in the complex genotypes associated with successful or unsuccessful aging. In addition, one can speculate that the genotype profile associated with CD susceptibility might be detrimental for longevity, and studies of this CD genetic asset might point to a candidate gene for antiaging strategies.
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Affiliation(s)
- Domenico Nuzzo
- Immunosenescence Unit, Department of Pathobiology and Biomedical Methodology, University of Palermo, Palermo, Italy
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14
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Núñez C, Alecsandru D, Varadé J, Polanco I, Maluenda C, Fernández-Arquero M, de la Concha EG, Urcelay E, Martínez A. Interleukin-10 haplotypes in Celiac Disease in the Spanish population. BMC MEDICAL GENETICS 2006; 7:32. [PMID: 16579847 PMCID: PMC1481547 DOI: 10.1186/1471-2350-7-32] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/02/2006] [Accepted: 03/31/2006] [Indexed: 11/10/2022]
Abstract
Background Celiac disease (CD) is a chronic disorder characterized by a pathological inflammatory response after exposure to gluten in genetically susceptible individuals. The HLA complex accounts for less than half of the genetic component of the disease, and additional genes must be implicated. Interleukin-10 (IL-10) is an important regulator of mucosal immunity, and several reports have described alterations of IL-10 levels in celiac patients. The IL-10 gene is located on chromosome 1, and its promoter carries several single nucleotide polymorphisms (SNPs) and microsatellites which have been associated to production levels. Our aim was to study the role of those polymorphisms in susceptibility to CD in our population. Methods A case-control and a familial study were performed. Positions -1082, -819 and -592 of the IL-10 promoter were typed by TaqMan and allele specific PCR. IL10R and IL10G microsatellites were amplified with labelled primers, and they were subsequently run on an automatic sequencer. In this study 446 patients and 573 controls were included, all of them white Spaniards. Extended haplotypes encompassing microsatellites and SNPs were obtained in families and estimated in controls by the Expectation-Maximization algorithm. Results No significant associations after Bonferroni correction were observed in the SNPs or any of the microsatellites. Stratification by HLA-DQ2 (DQA1*0501-DQB1*02) status did not alter the results. When extended haplotypes were analyzed, no differences were apparent either. Conclusion The IL-10 polymorphisms studied are not associated with celiac disease. Our data suggest that the IL-10 alteration seen in patients may be more consequence than cause of the disease.
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Affiliation(s)
- Concepción Núñez
- Department of Clinical Immunology, Hospital Clínico San Carlos, Madrid, Spain
| | - Diana Alecsandru
- Department of Clinical Immunology, Hospital Clínico San Carlos, Madrid, Spain
| | - Jezabel Varadé
- Department of Clinical Immunology, Hospital Clínico San Carlos, Madrid, Spain
| | - Isabel Polanco
- Department of Paediatric Gastroenterology, Hospital La Paz, Madrid, Spain
| | - Carlos Maluenda
- Department of Paediatrics, Hospital Clínico San Carlos, Madrid, Spain
| | | | | | - Elena Urcelay
- Department of Clinical Immunology, Hospital Clínico San Carlos, Madrid, Spain
| | - Alfonso Martínez
- Department of Clinical Immunology, Hospital Clínico San Carlos, Madrid, Spain
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Abstract
PURPOSE OF REVIEW This article primarily aims to review critically research in all aspects of celiac disease over the last year. As always, there has been a wealth of relevant papers. RECENT FINDINGS The role of genetics in disease susceptibility is slowly becoming more clearly defined and a more detailed understanding of the disease processes at the molecular level is paving the way towards the development of specific targeted therapies. SUMMARY Despite recent advances in our understanding of celiac disease, the gluten-free diet remains the only current viable therapy and even with advances in serological tests and markers, the duodenal biopsy remains the gold standard for diagnosis and monitoring of the response to therapy.
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Affiliation(s)
- Richard B Jones
- Department of Academic Medicine, St James's University Hospital, Leeds, UK.
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Cataldo F, Scola L, Piccione M, Giuffrè M, Crivello A, Forte GI, Lio D, Corsello G. Evaluation of cytokine polymorphisms (TNFalpha, IFNgamma and IL-10) in Down patients with coeliac disease. Dig Liver Dis 2005; 37:923-7. [PMID: 16182624 DOI: 10.1016/j.dld.2005.08.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2005] [Revised: 07/06/2005] [Accepted: 08/17/2005] [Indexed: 12/11/2022]
Abstract
BACKGROUND In Down syndrome there is an increased prevalence of coeliac disease, but the reasons for this association are yet unknown. AIMS To evaluate a possible correlation between TNFalpha, IFNgamma and IL-10 genotype polymorphisms with the susceptibility to coeliac disease in Down syndrome patients. METHODS Single nucleotide polymorphisms of TNFalpha (-308G-->A promoter region), IFNgamma (+874T-->A promoter region) and IL-10 (-1082G-->A promoter region) have been studied in 10 Down patients with coeliac disease, in 40 Down patients without coeliac disease and in 220 healthy controls. Clinical features were also studied in coeliac disease-Down syndrome patients. RESULTS The 10 coeliac disease-Down syndrome patients had a biopsy proven coeliac disease afterward a serological testing positive to antigliadin, antiendomysium and antitransglutaminase antibodies. Intestinal biopsy showed total atrophy in 6/10 and partial villous atrophy in 4/10 of them. All coeliac disease-Down syndrome patients had silent forms of coeliac disease and classical trisomy 21. No significant differences were observed for the IFNgamma and IL-10 polymorphisms in the studied groups. A significant trend for increase of TNFalpha -308A positive frequency was observed in coeliac disease-Down syndrome patients compared to healthy controls (p=0.043). CONCLUSIONS Single nucleotide polymorphisms of IFNgamma and IL-10 do not play a role in predisposing Down syndrome patients to coeliac disease, while the TNFalpha -308 allele could be an additional genetic risk factor for coeliac disease in trisomy 21.
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Affiliation(s)
- F Cataldo
- Department of Pediatrics, University of Palermo, Italy.
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