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Dahmani CA, Benzaoui A, Amroun H, Mecabih F, Sediki FZ, Zemani-Fodil F, Fodil M, Boughrara W, Mecheti B, Attal N, Mehtar N, Petit-Teixeira E, Boudjema A. Association of the HLA-B27 antigen and the CTLA4 gene CT60/rs3087243 polymorphism with ankylosing spondylitis in Algerian population: A case-control study. Int J Immunogenet 2018; 45:109-117. [PMID: 29675891 DOI: 10.1111/iji.12369] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Revised: 01/30/2018] [Accepted: 03/22/2018] [Indexed: 12/14/2022]
Abstract
Ankylosing spondylitis (AS) is a complex inflammatory disease that represents a major health problem both in Algeria and worldwide. Several lines of evidence support that genetic risk factors play a role in AS etiology and the CTLA4 gene has attracted a considerable attention. In this study, we were interested in evaluating the HLA-B27 frequency and in exploring the CTLA4 gene in a sample of the North African population. The dataset of the current study is composed of 81 patients with AS and 123 healthy controls. All samples were genotyped by TaqMan® allelic discrimination assay. The genetic risk of the HLA-B27 specificity and the CTLA4/CT60 polymorphism were assessed by odds ratios (OR) with 95% confidence intervals (CI). High spondylitis risk was detected for HLA-B27 allele (OR= 14.62, p = 10-6 ) in addition to a significant association of the CT60*G allele (OR= 1.89, p = .002). After gender and age stratifications, the association of the CT60*G allele was still significant in females sample (OR= 2.10, p = .001) and when age up to 30 years (OR = 2.21, p = .008). Interestingly, the CT60*G allele revealed an increased spondylitis risk in the B27 negative group (OR= 2.81, p = .006). The present work showed in West Algerian population that the HLA-B27 antigen and the variation in the CTLA4 3'UTR region played an important role in the ankylosing spondylitis susceptibility. The heterogeneity of this disease is deduced by genetic difference found between B27+ and B27- groups.
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Affiliation(s)
- C A Dahmani
- Laboratoire de Génétique Moléculaire et Cellulaire (LGMC), Université des Sciences et de la Technologie d'Oran-Mohamed Boudiaf (USTO-MB), Oran, Algeria
| | - A Benzaoui
- Service de Rhumatologie, Centre Hospitalo-Universitaire (CHU) d'Oran, Oran, Algeria
| | - H Amroun
- Laboratoire d'Immunogénétique et de Transplantation, Département d'Immunologie, Institut Pasteur d'Algérie à, Alger, Algeria
| | - F Mecabih
- Laboratoire d'Immunogénétique et de Transplantation, Département d'Immunologie, Institut Pasteur d'Algérie à, Alger, Algeria
| | - F Z Sediki
- Laboratoire de Génétique Moléculaire et Cellulaire (LGMC), Université des Sciences et de la Technologie d'Oran-Mohamed Boudiaf (USTO-MB), Oran, Algeria
| | - F Zemani-Fodil
- Laboratoire de Génétique Moléculaire et Cellulaire (LGMC), Université des Sciences et de la Technologie d'Oran-Mohamed Boudiaf (USTO-MB), Oran, Algeria
| | - M Fodil
- Laboratoire de Génétique Moléculaire et Cellulaire (LGMC), Université des Sciences et de la Technologie d'Oran-Mohamed Boudiaf (USTO-MB), Oran, Algeria
| | - W Boughrara
- Laboratoire de Génétique Moléculaire et Cellulaire (LGMC), Université des Sciences et de la Technologie d'Oran-Mohamed Boudiaf (USTO-MB), Oran, Algeria
| | - B Mecheti
- Laboratoire d'Immunogénétique et de Transplantation, Département d'Immunologie, Institut Pasteur d'Algérie à, Alger, Algeria
| | - N Attal
- Laboratoire d'Immunogénétique et de Transplantation, Département d'Immunologie, Institut Pasteur d'Algérie à, Alger, Algeria
| | - N Mehtar
- Laboratoire de Génétique Moléculaire et Cellulaire (LGMC), Université des Sciences et de la Technologie d'Oran-Mohamed Boudiaf (USTO-MB), Oran, Algeria
| | - E Petit-Teixeira
- Laboratoire Européen de la Polyarthrite Rhumatoide, Université d'Evry-Val D'Essonne, Evry, France
| | - A Boudjema
- Laboratoire de Génétique Moléculaire et Cellulaire (LGMC), Université des Sciences et de la Technologie d'Oran-Mohamed Boudiaf (USTO-MB), Oran, Algeria
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Guerreiro-Cacais AO, Norin U, Gyllenberg A, Berglund R, Beyeen AD, Petit-Teixeira E, Cornélis F, Saoudi A, Fournié GJ, Holmdahl R, Alfredsson L, Klareskog L, Jagodic M, Olsson T, Kockum I, Padyukov L. VAV1 regulates experimental autoimmune arthritis and is associated with anti-CCP negative rheumatoid arthritis. Genes Immun 2017; 18:109. [PMID: 28446790 DOI: 10.1038/gene.2017.7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Guerreiro-Cacais AO, Norin U, Gyllenberg A, Berglund R, Beyeen AD, Petit-Teixeira E, Cornélis F, Saoudi A, Fournié GJ, Holmdahl R, Alfredsson L, Klareskog L, Jagodic M, Olsson T, Kockum I, Padyukov L. VAV1 regulates experimental autoimmune arthritis and is associated with anti-CCP negative rheumatoid arthritis. Genes Immun 2017; 18:48-56. [PMID: 28053322 DOI: 10.1038/gene.2016.49] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Revised: 11/19/2016] [Accepted: 11/28/2016] [Indexed: 12/19/2022]
Abstract
Rheumatoid arthritis (RA) patients can be stratified into two subgroups defined by the presence or absence of antibodies against citrullinated circular peptides (anti-CCP) with most of the genetic association found in anti-CCP positive RA. Here we addressed the role of VAV1, previously associated to multiple sclerosis (MS), in the pathogenesis of RA in experimental models and in a genetic association study. Experimental arthritis triggered by pristane or collagen type II was induced in DA rats and in the DA.BN-R25 congenic line that carries a polymorphism in Vav1. Difference in arthritis severity was observed only after immunization with pristane. In a case-control study, 34 SNPs from VAV1 locus were analyzed by Immunochip genotyping in 11475 RA patients (7573 anti-CCP positive and 3902 negative) and 15,870 controls in six cohorts of European Caucasians. A combination of the previous MS-associated haplotype and two additional SNPs was associated with anti-CCP negative RA (alleles G-G-A-A of rs682626-rs2546133-rs2617822-rs12979659, OR=1.13, P=1.27 × 10-5). The same markers also contributed to activity of RA at baseline with the strongest association in the anti-CCP negative group for the rs682626-rs12979659 G-A haplotype (β=-0.283, P=0.0048). Our study suggests a role for VAV1 and T-cell signaling in the pathology of anti-CCP-negative RA.
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Affiliation(s)
- A O Guerreiro-Cacais
- Department of Clinical Neuroscience, Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - U Norin
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - A Gyllenberg
- Department of Clinical Neuroscience, Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - R Berglund
- Department of Clinical Neuroscience, Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - A D Beyeen
- Department of Clinical Neuroscience, Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | | | - E Petit-Teixeira
- GenHotel-EA3886, Evry-Val d'Essonne University, Evry-Genopole, France
| | - F Cornélis
- GenHotel-Auvergne, CHU de Clermont-Ferrand, Auvergne University, France
| | - A Saoudi
- Inserm, U1043, Toulouse, France.,CNRS, U5282, Toulouse, France.,Centre de Physiopathologie de Toulouse Purpan, Université de Toulouse, Toulouse, France
| | - G J Fournié
- Inserm, U1043, Toulouse, France.,CNRS, U5282, Toulouse, France.,Centre de Physiopathologie de Toulouse Purpan, Université de Toulouse, Toulouse, France
| | - R Holmdahl
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - L Alfredsson
- Department of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - L Klareskog
- Rheumatology Unit, Department of Medicine, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - M Jagodic
- Department of Clinical Neuroscience, Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - T Olsson
- Department of Clinical Neuroscience, Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - I Kockum
- Department of Clinical Neuroscience, Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - L Padyukov
- Rheumatology Unit, Department of Medicine, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
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Petit-Teixeira E, Derbois C, Dalmasso C, Olaso R, Ambroise C, Ben Kilani M, Deleuze JF, Gabay C, Cornelis F, Finckh A. AB0004 Characterization of Putative Pre-RA Signatures by Transcriptome Analysis. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.6015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Fodil M, Benzaoui A, Zemani-Fodil F, Aberkane M, Boughrara W, Saidi-Mehtar N, Petit-Teixeira E, Boudjema A. Association of PTPN22 (rs2476601) and STAT4 (rs7574865) polymorphisms with Rheumatoid Arthritis in the Western Algerian population. Acta Reumatol Port 2015; 40:56-62. [PMID: 25351936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
AIM The aim of the present study was to replicate the association of five risk gene polymorphisms (PTPN22-rs2476601, STAT4-rs7574865, 6q23-rs6927172, IRF5-rs2004640 and TRAF1/C5-rs10818488) with RA in a specific population of the Western Algeria. MATERIAL AND METHODS The study group comprised 110 patients with RA and 197 ethnically matched healthy control subjects. All polymorphisms were genotyped using predesigned TaqMan® assays. Allele and genotype frequencies in patients and control subjects were compared by chi-square test and odds ratios with 95% confidence intervals. Correction for multiple testing was carried out using the Bonferroni adjustment. RESULTS Statistically significant associations with RA were detected. The strongest signal was obtained for PTPN22-rs2476601 with an allelic Pvalue 3.32 x 10(-11) (OR = 9.83, 95% CI [4.28 - 22.56]). A second significant association was obtained with STAT4-rs7574865 (allelic Pvalue = 4 x 10(-3); OR = 1.75, 95% CI [1.16 - 2.63]). The third SNP, 6q23-rs6927172, showed a significant result of association with RA, but missed our criteria for significance at allelic level after Bonferroni's correction (allelic Pvalue = 0.027; OR = 0.64, 95% CI [0.42 - 0.97]). Finally, IRF5-rs2004640 and TRAF1/C5-rs10818488 showed a significant association only at genotypic level (Pvalues: 3 x 10(-4) and 2.9 x 10(-3) respectively) but did not reach statistical significance when comparing allele frequencies (Pvalues: 0.96 and 0.21 respectively). CONCLUSIONS From this initial study, we can conclude that PTPN22-rs2476601 and STAT4-rs7574865 polymorphisms are clearly associated with the risk of RA in the Western Algerian population.
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Fodil M, Teixeira VH, Chaudru V, Hilliquin P, Bombardieri S, Balsa A, Westhovens R, Barrera P, Alves H, Migliorin P, Bardin T, Cornelis F, Boudjema A, Petit-Teixeira E. Relationship between SNPs and expression level for candidate genes in rheumatoid arthritis. Scand J Rheumatol 2014; 44:2-7. [PMID: 25221852 DOI: 10.3109/03009742.2014.918175] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
OBJECTIVES The study of polymorphisms of genes differentially expressed may lead to the identification of putative causal genetic variants in multifactorial diseases such as rheumatoid arthritis (RA). Based on preceding transcriptomic results, we genotyped 10 single nucleotide polymorphisms (SNPs) belonging to six genes (S100A8, RNASE2, PGLYRP1, RUNX3, IL2RB, and LY96) showing the highest fold change (> 1.9) when level of expression was compared between RA patients and controls. These SNPs were then analysed to evaluate their role in RA. METHOD The relationship between gene expression and genotypes of SNPs was first investigated by Kruskal-Wallis and Mann-Whitney tests in RA patients and controls. The genetic association of these SNPs with RA were then analysed using family-based association tests in trio families. RESULTS We found that RNASE2 gene expression was related to rs2013109 genotypes in 14 RA patients (p = 0.030). The association study in a discovery sample of 200 French trio families revealed a significant association with RA for one SNP, PGLYRP1-rs2041992 (p = 0.019); this association was stronger in trios where RA patients carried the HLA-DRB1 shared epitope (SE) (p = 0.003). However, this association was not found in a replication sample of 240 European trio families (p = 0.6). CONCLUSIONS Family-based association tests did not reveal an association between RA and any SNP of the candidate genes tested. However, RNASE2 gene expression was differentially expressed in RA patients considering a sequence polymorphism. This result led us to highlight the potential disease-specific regulation for this candidate gene in RA.
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Affiliation(s)
- M Fodil
- GenHotel-EA3886, Evry-Val d'Essonne University, Evry-Genopole , France
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Pratesi F, Petit-Teixeira E, Ancillotti D, Panza F, Cornelis F, Migliorini P. THU0465 Genetic Control of the Immune Response to Histone Derived Citrullinated Peptides in Rheumatoid Arthritis Patients. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.5450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Ben Hamad M, Cornelis F, Marzouk S, Chabchoub G, Bahloul Z, Rebai A, Fakhfakh F, Ayadi H, Petit-Teixeira E, Maalej A. Association study of CARD8 (p.C10X) and NLRP3 (p.Q705K) variants with rheumatoid arthritis in French and Tunisian populations. Int J Immunogenet 2011; 39:131-6. [PMID: 22128899 DOI: 10.1111/j.1744-313x.2011.01070.x] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The objective of the study was to investigate the association of caspase activating and recruitment domain 8 (CARD8) and nucleotide-binding oligomerization domain, leucine-rich repeat and pyrin domain containing 3 (NLRP3) polymorphisms with rheumatoid arthritis (RA) in Tunisian and French populations. CARD8 (c.30T>A, rs2043211) and NLRP3 (c.2113C>A, rs35829419) single nucleotide polymorphisms (SNPs) were genotyped in 100 French RA trio families and 141 Tunisian patients with RA and 191 unrelated healthy controls, using TaqMan(®) allelic discrimination assay. The genetic analyses for the association and linkage in French families were performed using the comparison of allelic frequencies (AFBAC), the genotype relative risk (GRR) and the transmission disequilibrium test (TDT). Data for case and control samples were analysed by chi-square-test, GRR and odds ratio (OR). No significant differences between alleles and genotypes frequencies were detected in French trio and Tunisian patients with RA and controls, either with CARD8 or with NLRP3 SNPs both in French and in Tunisian populations. Moreover, stratifying patients according to the presence of rheumatoid factor (RF), anti-cyclic peptides antibodies (ACPA), erosion, nodules, other autoimmune disease or HLA-DRB1*04-positive subgroups did not show any significant association with CARD8 or NLRP3 (P ≥ 0.05). This study suggests that variations in the innate immunity genes CARD8 (p.C10X) and NLRP3 (p.Q705K) have no effect on RA susceptibility either in the Tunisian or in the French population.
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Affiliation(s)
- M Ben Hamad
- Laboratory of Human Molecular Genetics, Faculty of Medicine, Sfax, Tunisia.
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Ben Hamad M, Cornelis F, Mbarek H, Chabchoub G, Marzouk S, Bahloul Z, Rebai A, Fakhfakh F, Ayadi H, Petit-Teixeira E, Maalej A. Signal transducer and activator of transcription and the risk of rheumatoid arthritis and thyroid autoimmune disorders. Clin Exp Rheumatol 2011; 29:269-274. [PMID: 21418779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2010] [Accepted: 12/15/2010] [Indexed: 05/30/2023]
Abstract
OBJECTIVES The signal transducer and activator of transcription 4 (STAT4) gene localised on chromosome 2q32.2-q32.3 is known to be essential for mediating responses to interleukin 12 in lymphocytes and regulating the differentiation of T helper cells. The aim of this study was to investigate the role of the STAT4 gene in susceptibility to rheumatoid arthritis (RA) and autoimmune thyroid diseases (AITDs) in Tunisian case control studies. METHODS Genotyping of STAT4 rs7574865 single nucleotide polymorphism (SNP) was performed in 140 patients affected with RA, 159 patients affected with AITDs and 200 healthy controls using TaqMan® allelic discrimination assay. Data were analysed by χ2-test, genotype relative risk (GRR) and odds ratio (OR). RESULTS Our results revealed that frequencies of the T allele and the T/T genotype were significantly higher among RA patients compared to controls (p=0.008; p=0.003, respectively). However, no significant associations with the risk of autoimmune thyroid diseases were detected. Moreover, the stratification of RA patients subgroups revealed a significant association of both T allele and T/T genotype in patients presented erosion (p=0.003; p=0.004, respectively) as well as anti-cyclic peptides-negative RA (ACPA-) (p=0.002; p=0.0003, respectively). Furthermore, genotypic association was found according to the absence of rheumatoid factor antibody (RF) (p=0.0014). But, no significant differences in allele and genotype frequencies of STAT4 rs7574865 polymorphism were detected according to the presence of another autoimmune disease, nodules and in HLA-DRB1*04 and HLA-DRB1*0404 positive subgroups. CONCLUSIONS Our results support involvement of the STAT4 gene in the genetic susceptibility to RA but not to AITDs in the Tunisian population.
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Affiliation(s)
- M Ben Hamad
- Laboratory of Human Molecular Genetics, Faculty of Medicine, Sfax, Tunisia
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Dawidowicz K, Allanore Y, Guedj M, Pierlot C, Bombardieri S, Balsa A, Westhovens R, Barrera P, Alves H, Teixeira VH, Petit-Teixeira E, van de Putte L, van Riel P, Prum B, Bardin T, Meyer O, Cornelis F, Dieude P. The interferon regulatory factor 5 gene confers susceptibility to rheumatoid arthritis and influences its erosive phenotype. Ann Rheum Dis 2010; 70:117-21. [DOI: 10.1136/ard.2010.129171] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Kurreeman FAS, Rocha D, Houwing-Duistermaat J, Vrijmoet S, Teixeira VH, Migliorini P, Balsa A, Westhovens R, Barrera P, Alves H, Vaz C, Fernandes M, Pascual-Salcedo D, Michou L, Bombardieri S, Radstake T, van Riel P, van de Putte L, Lopes-Vaz A, Prum B, Bardin T, Gut I, Cornelis F, Huizinga TWJ, Petit-Teixeira E, Toes REM. Replication of the tumor necrosis factor receptor-associated factor 1/complement component 5 region as a susceptibility locus for rheumatoid arthritis in a European family-based study. ACTA ACUST UNITED AC 2010; 58:2670-4. [PMID: 18759306 DOI: 10.1002/art.23793] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
OBJECTIVE We recently showed, using a candidate gene approach in a case-control association study, that a 65-kb block encompassing tumor necrosis factor receptor-associated factor 1 (TRAF1) and C5 is strongly associated with rheumatoid arthritis (RA). Compared with case-control association studies, family-based studies have the added advantage of controlling potential differences in population structure and are not likely to be hampered by variation in population allele frequencies, as is seen for many genetic polymorphisms, including the TRAF1/C5 locus. The aim of this study was to confirm this association in populations of European origin by using a family-based approach. METHODS A total of 1,356 western European white individuals from 452 "trio" families were genotyped for the rs10818488 polymorphism, using the TaqMan allelic discrimination assay. RESULTS We observed evidence for association, demonstrating departure from Mendel's law, with an overtransmission of the rs10818488 A allele (A = 55%; P = 0.036). By taking into consideration parental phenotypes, we also observed an increased A allele frequency in affected versus unaffected parents (A = 64%; combined P = 0.015). Individuals carrying the A allele had a 1.2-fold increased risk of developing RA (allelic odds ratio 1.24, 95% confidence interval 1.04-1.50). CONCLUSION Using a family-based study that is robust against population stratification, we provide evidence for the association of the TRAF1/C5 rs10818488 A allele and RA in populations of European descent, further substantiating our previous findings. Future functional studies should yield insight into the biologic relevance of this locus to the pathways involved in RA.
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Mbarek H, Kallel-Sellami M, Zerzri Y, Dawidowicz K, Mejri K, Bardin T, Prum B, Dieudé P, Petit-Teixeira E, Cornélis F, Makni S. New rheumatoid arthritis genetic factor and C5 serum level. Ann Rheum Dis 2009; 68:1508-9. [DOI: 10.1136/ard.2008.104935] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Mejri K, Mbarek H, Kallel-Sellami M, Petit-Teixeira E, Zerzeri Y, Abida O, Zitouni M, Ben Ayed M, Mokni M, Fezza B, Turki H, Tron F, Gilbert D, Masmoudi H, Prum B, Cornelis F, Makni S. TRAF1/C5 polymorphism is not associated with pemphigus. Br J Dermatol 2009; 160:1348-50. [PMID: 19416238 DOI: 10.1111/j.1365-2133.2009.09136.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Jacq L, Teixeira VH, Garnier S, Petit-Teixeira E, Cornélis F. The MMP2 rs243865-T allele is not a major genetic factor for rheumatoid arthritis in the French Caucasian population. Int J Immunogenet 2008; 35:97-9. [DOI: 10.1111/j.1744-313x.2007.00740.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Dieude P, Teixeira VH, Pierlot C, Cornelis F, Petit-Teixeira E. Testing for linkage and association with rheumatoid arthritis a ptpn22 promoter polymorphism reported to be associated and linked with type 1 diabetes in the Caucasian population. Ann Rheum Dis 2008; 67:900-1. [DOI: 10.1136/ard.2007.077180] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Mejri K, Kallel-Sellami M, Petit-Teixeira E, Abida O, Mbarek H, Zitouni M, Ben Ayed M, Teixeira VH, Mokni M, Fazza B, Turki H, Tron F, Gilbert D, Masmoudi H, Cornelis F, Makni S. PTPN22 R620W polymorphism is not associated with pemphigus. Br J Dermatol 2007; 157:1068-9. [PMID: 17854359 DOI: 10.1111/j.1365-2133.2007.08170.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Michou L, Teixeira VH, Pierlot C, Lasbleiz S, Bardin T, Dieudé P, Prum B, Cornélis F, Petit-Teixeira E. Associations between genetic factors, tobacco smoking and autoantibodies in familial and sporadic rheumatoid arthritis. Ann Rheum Dis 2007; 67:466-70. [PMID: 17660221 DOI: 10.1136/ard.2007.075622] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
OBJECTIVES The objective of this study was to investigate the association between genes (HLA-DRB1 and PTPN22) and tobacco smoking, separately as well as combined, and serological markers of rheumatoid arthritis (RA) in a French population with RA. METHODS 274 patients with RA with half of them belonging to RA multicase families, were genotyped for HLA-DRB1 allele and for PTPN22-1858 polymorphism. IgM rheumatoid factor and anti-cyclic citrullinated peptide (anti-CCP) antibodies were determined by ELISA method. The search for association relied on chi(2) test and odds ratio with 95% confidence interval calculation. The interaction study relied on the departure-from-additivity-based method. RESULTS The presence of at least one shared epitope (SE) allele was associated with anti-CCP antibodies presence (82.5% vs. 68.4%, p = 0.02), particularly with HLA-DRB1*0401 allele (28.0% vs. 16.4%, p = 0.01). Tobacco exposure was associated with anti-CCP antibodies, but only in presence of SE. A tendency toward an interaction was found between tobacco, the presence of at least one HLA-DRB1*0401 allele and anti-CCP antibodies (attributable proportion due to interaction = +0.24 (-0.21+0.76)). The cumulative dose of cigarette smoking was correlated with anti-CCP antibody titres (r = 0.19, p = 0.04). The presence of both SE and 1858T alleles was associated with a higher, but not significantly different, risk for anti-CCP antibodies presence than for each separately. No association was found between PTPN22-1858T allele and tobacco smoking for autoantibody positivity. CONCLUSIONS Our findings suggest an association between SE alleles and tobacco smoking for anti-CCP positivity and a tendency toward an interaction between the HLA-DRB1*0401 allele and smoking for anti-CCP positivity in this sample of RA.
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Affiliation(s)
- L Michou
- GenHotel-EA 3886, Laboratoire de Recherche Européen pour la Polyarthrite Rhumatoïde, ECRAF-Université Paris 7-Université d'Evry, 2 rue Gaston Crémieux, CP 5727, 91057 Evry-Genopole cedex, France.
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Chabchoub G, Petit-Teixeira E, Maalej A, Pierlot C, Bahloul Z, Cornélis F, Ayadi H. Lack of association between signaling lymphocytic activation molecule family member 1 gene and rheumatoid arthritis in the French and Tunisian populations. Ann Rheum Dis 2006; 65:1538-9. [PMID: 17038461 PMCID: PMC1798348 DOI: 10.1136/ard.2006.052209] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Tommasi C, Petit-Teixeira E, Cournu-Rebeix I, Caponi L, Pierlot C, Fontaine B, Cornelis F, Migliorini P. PADI4 gene in multiple sclerosis: A family-based association study. J Neuroimmunol 2006; 177:142-5. [PMID: 16828881 DOI: 10.1016/j.jneuroim.2006.05.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2006] [Revised: 05/03/2006] [Accepted: 05/12/2006] [Indexed: 11/16/2022]
Abstract
In multiple sclerosis (MS) MBP is heavily citrullinated by peptidylarginine deiminase (PAD). This post-translational modification may be crucial for its pathogenesis. PADI4 is the isoform expressed in inflammatory infiltrates. The aim of this study was to analyse the role of PADI4 gene in conferring susceptibility to MS, by means of a family-based association study, testing three SNPs by RFLP. No association was found either with single SNPs or haplotypes. Similarly no significant association was detected partitioning the patients according to DRB1*15 positivity or disease severity. These results do not support a major role of the PADI4 gene, but further studies may contribute to clarify the genetic factors that regulate deimination.
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Affiliation(s)
- C Tommasi
- Clinical Immunology Unit, Department of Internal Medicine, University of Pisa, Italy
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Chabchoub G, Maalej A, Petit-Teixeira E, Glikmans E, Rebai A, Farid NR, Cornelis F, Ayadi H. Polymorphisms in the protein tyrosine phosphatase (PTPN22) gene is not associated with autoimmune thyroid in a large affected Tunisian family. Clin Immunol 2006; 120:235-6. [PMID: 16765647 DOI: 10.1016/j.clim.2006.04.565] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2006] [Accepted: 04/07/2006] [Indexed: 11/30/2022]
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Maalej A, Petit-Teixeira E, Michou L, Rebai A, Cornelis F, Ayadi H. Association study of VDR gene with rheumatoid arthritis in the French population. Genes Immun 2005; 6:707-11. [PMID: 16151416 DOI: 10.1038/sj.gene.6364260] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Vitamin D is a potent regulator of calcium homeostasis and may have immunomodulatory effects. The influence of vitamin D on human autoimmune disease is controversial. The aim of this study was to investigate the role of vitamin D receptor gene (VDR) in rheumatoid arthritis (RA). Three polymorphisms for VDR gene FokI T>C (rs 10735810), BsmI A>G (rs 1544410) and TaqI C>T (rs 731236) were genotyped in 100 RA French nuclear families (set 1) and 100 additional French nuclear families for replication (set 2). The association analysis was performed using comparison of alleles frequencies (AFBAC), transmission disequilibrium test and genotype relative risk. Our results revealed a significant difference of F allele of FokI polymorphism between transmitted and nontransmitted frequencies (P=0.01) in set 1. Furthermore, the F/F genotype was more frequent in RA patients compared to controls (P=0.01) in set 1. The replication in set 2 showed similar patterns of transmission with a nonsignificant association. Association with FokI was found to be significant when the two sets were combined (P=0.006). These data suggest that the F allele and F/F VDR genotype are associated with RA. The mechanisms by which distinct receptor variants might confer disease susceptibility remain to be elucidated.
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Affiliation(s)
- A Maalej
- Laboratoire de Génétique Moléculaire Humaine, Faculté de Médecine de Sfax, Avenue Majida Boulila, 3029 Sfax, Tunisia
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Caponi L, Petit-Teixeira E, Sebbag M, Bongiorni F, Moscato S, Pratesi F, Pierlot C, Osorio J, Chapuy-Regaud S, Guerrin M, Cornelis F, Serre G, Migliorini P. A family based study shows no association between rheumatoid arthritis and the PADI4 gene in a white French population. Ann Rheum Dis 2004; 64:587-93. [PMID: 15485997 PMCID: PMC1755438 DOI: 10.1136/ard.2004.026831] [Citation(s) in RCA: 87] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BACKGROUND Autoantibodies to citrullinated proteins (ACPA) are considered a specific marker for rheumatoid arthritis. Peptidylarginine deiminase (PAD) is the enzyme that converts arginyl into citrullyl residues; different isoforms of the enzyme are expressed in mammals. It has been suggested that the PADI4 gene may contribute to genetic susceptibility to rheumatoid arthritis, but conflicting results have been obtained in different populations. OBJECTIVE To test the hypothesis that the PADI4 gene may confer susceptibility to rheumatoid arthritis in a white French population, using powerful and highly reliable family based association tests. METHODS DNA samples were analysed from 100 families where one member was affected by rheumatoid arthritis and both parents were available for sampling. Five single nucleotide polymorphisms, located within the PADI4 gene and in its close proximity, were genotyped by restriction fragment length polymorphism, and haplotypes were constructed. The analysis involved use of the transmission disequilibrium test and genotype relative risk. ACPA were detected by ELISA on cyclic citrullinated peptides and on human deiminated fibrinogen. RESULTS No single SNP or haplotype was associated with the disease, or was preferentially transmitted. No association was found when patients were partitioned according to ACPA positivity. CONCLUSIONS No PADI4 haplotype is associated with rheumatoid arthritis in a white French population. The role of genes encoding the other PAD isoforms, or modulating tissue expression or enzyme activity, remains to be elucidated.
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Affiliation(s)
- L Caponi
- Department of Experimental Pathology, University of Pisa, via Roma 67, I-56126 Pisa, Italy
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