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Houssaini H, Bouallegui E, Abida O, Tahri S, Elloumi N, Hachicha H, Marzouk S, Bahloul Z, Masmoudi H, Fakhfakh R. ICOS gene polymorphisms in systemic lupus erythematosus: A case-control study. Int J Immunogenet 2023; 50:194-205. [PMID: 37338463 DOI: 10.1111/iji.12625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 05/23/2023] [Accepted: 06/11/2023] [Indexed: 06/21/2023]
Abstract
The inducible T-cell costimulator (ICOS) may play an important role in adaptive immunity by regulating the interaction between T cells and antigen-presenting cells. Disruption of this molecule can lead to autoimmune diseases, in particular systemic lupus erythematosus (SLE). In this study, we aimed to explore the possible association between ICOS gene polymorphisms and SLE as well as their influence on disease susceptibility and clinical outcomes. A further objective was to assess the potential impact of these polymorphisms on RNA expression. A case-control study, including 151 patients with SLE, and 291 unrelated healthy controls (HC) matched in gender, and geographical origin, was performed to genotype two polymorphisms located in the ICOS gene: rs11889031 (-693 G/A) and rs10932029 (IVS1 + 173 T/C); using the polymerase chain reaction (PCR)-restriction fragment length polymorphism method. The different genotypes were validated by direct sequencing. The expression level of ICOS mRNA was assessed by quantitative PCR in peripheral blood mononuclear cells of SLE patients and HC. The results were analysed using Shesis and spss.20. Our results revealed a significant association between ICOS gene rs11889031 > CC genotype and SLE disease (codominant genetic model 1, (C/C vs. C/T), p = .001, odds ratio [OR] = 2.18 IC [1.36-3.49]); codominant genetic model 2, (C/C vs. T/T) p = .007, OR = 15.29 IC [1.97-118.5]); dominant genetic model, (C/C vs. C/T + T/T) p = .0001, OR = 2.44 IC [1.53-3.9]). Besides, there was a marginal association between rs11889031 > TT genotype and T allele with a protective role from SLE (recessive genetic model, p = .016, OR = 0.08 IC [0.01-0.63] and p = 7.6904E - 05, OR = 0.43 IC = [0.28-0.66], respectively). Moreover, statistical analysis indicated that the rs11889031 > CC genotype was linked with clinical and serological manifestations of SLE, including blood pressure, and anti-SSA antibodies production in SLE patients. However, the ICOS gene rs10932029 polymorphism was not associated with susceptibility to SLE. On the other side, we did not note any effect of the two selected polymorphisms on the level of ICOS mRNA gene expression. The study showed a significant predisposing association of the ICOS rs11889031 > CC genotype with SLE, in contrast to a protective effect of rs11889031 > TT genotype in Tunisian patients. Our results suggest that ICOS rs11889031 may act as a risk factor for SLE and could be used as a genetic susceptibility biomarker.
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Affiliation(s)
- Hana Houssaini
- Autoimmunity, Cancer, and Immunogenetics Research Laboratory, LR18SP12, Habib Bourguiba University Hospital of Sfax, University of Sfax, Sfax, Tunisia
| | - Emna Bouallegui
- Autoimmunity, Cancer, and Immunogenetics Research Laboratory, LR18SP12, Habib Bourguiba University Hospital of Sfax, University of Sfax, Sfax, Tunisia
| | - Olfa Abida
- Autoimmunity, Cancer, and Immunogenetics Research Laboratory, LR18SP12, Habib Bourguiba University Hospital of Sfax, University of Sfax, Sfax, Tunisia
| | - Safa Tahri
- Autoimmunity, Cancer, and Immunogenetics Research Laboratory, LR18SP12, Habib Bourguiba University Hospital of Sfax, University of Sfax, Sfax, Tunisia
| | - Nesrine Elloumi
- Autoimmunity, Cancer, and Immunogenetics Research Laboratory, LR18SP12, Habib Bourguiba University Hospital of Sfax, University of Sfax, Sfax, Tunisia
| | - Hend Hachicha
- Autoimmunity, Cancer, and Immunogenetics Research Laboratory, LR18SP12, Habib Bourguiba University Hospital of Sfax, University of Sfax, Sfax, Tunisia
- Department of Immunology, Habib Bourguiba University Hospital, University of Sfax, Sfax, Tunisia
| | - Sameh Marzouk
- Internal Medicine Department, HediChaker University Hospital, University of Sfax, Sfax, Tunisia
| | - Zouhir Bahloul
- Internal Medicine Department, HediChaker University Hospital, University of Sfax, Sfax, Tunisia
| | - Hatem Masmoudi
- Autoimmunity, Cancer, and Immunogenetics Research Laboratory, LR18SP12, Habib Bourguiba University Hospital of Sfax, University of Sfax, Sfax, Tunisia
- Department of Immunology, Habib Bourguiba University Hospital, University of Sfax, Sfax, Tunisia
| | - Raouia Fakhfakh
- Autoimmunity, Cancer, and Immunogenetics Research Laboratory, LR18SP12, Habib Bourguiba University Hospital of Sfax, University of Sfax, Sfax, Tunisia
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Elloumi N, Bahloul M, Benabdallah E, Kharrat S, Fakhfakh R, Bouchaala K, Abida O, Chtara K, Masmoudi H, Bouaziz M. Genes regulating oxidative-inflammatory response in circulating monocytes and neutrophils in septic syndrome. Biol Futur 2023; 74:199-207. [PMID: 37291472 DOI: 10.1007/s42977-023-00168-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 05/13/2023] [Indexed: 06/10/2023]
Abstract
Despite significant progress in the past decades, sepsis still lacks a specific treatment. Under normal conditions, leucocytes play a critical role in controlling infection and it is suggested that their activity is impaired during sepsis which contribute to the dysregulation of immune reactions. Indeed, in response to infection, several intracellular pathways are affected mainly those regulating the oxidative- inflammatory axis. Herein, we focused on the contribution of NF-kB, iNOS, Nrf2, HO-1 and MPO genes in the pathophysiology of septic syndrome, by analyzing the differential expression of their transcripts in circulating monocytes and neutrophils, and monitoring the nitrosative/oxidative status in septic syndrome patients. Circulating neutrophils of septic patients displayed a significant overexpression of NF-kB compared to other groups. In monocytes, patients with septic shock expressed the highest levels of iNOS and NF-kB mRNA. However, genes involved in cytoprotective response had increased expression in patients with sepsis, in particular, the Nrf2 and its target gene HO-1. Moreover, patient monitoring indicates that the iNOS enzyme expression and NO plasma levels may play a role in assessing the severity of septic conditions. Overall, in either monocytes or neutrophils, we pointed out the major role of NF-κB and Nrf2 in the pathophysiological process. Therefore, therapies targeted to redox abnormalities may be useful for better management of septic patients.
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Affiliation(s)
- Nesrine Elloumi
- Research Laboratory LR18/SP12 Auto-Immunity, Cancer and Immunogenetics, Immunology Department, Habib Bourguiba University Hospital, University of Sfax, 3029, Sfax, Tunisia.
| | - Mabrouk Bahloul
- Department of Intensive Care, Habib Bourguiba University Hospital, Sfax, Tunisia
| | - Emna Benabdallah
- Research Laboratory LR18/SP12 Auto-Immunity, Cancer and Immunogenetics, Immunology Department, Habib Bourguiba University Hospital, University of Sfax, 3029, Sfax, Tunisia
| | - Sana Kharrat
- Department of Intensive Care, Habib Bourguiba University Hospital, Sfax, Tunisia
| | - Raouia Fakhfakh
- Research Laboratory LR18/SP12 Auto-Immunity, Cancer and Immunogenetics, Immunology Department, Habib Bourguiba University Hospital, University of Sfax, 3029, Sfax, Tunisia
| | - Karama Bouchaala
- Department of Intensive Care, Habib Bourguiba University Hospital, Sfax, Tunisia
| | - Olfa Abida
- Research Laboratory LR18/SP12 Auto-Immunity, Cancer and Immunogenetics, Immunology Department, Habib Bourguiba University Hospital, University of Sfax, 3029, Sfax, Tunisia
| | - Kamilia Chtara
- Department of Intensive Care, Habib Bourguiba University Hospital, Sfax, Tunisia
| | - Hatem Masmoudi
- Research Laboratory LR18/SP12 Auto-Immunity, Cancer and Immunogenetics, Immunology Department, Habib Bourguiba University Hospital, University of Sfax, 3029, Sfax, Tunisia
| | - Mounir Bouaziz
- Department of Intensive Care, Habib Bourguiba University Hospital, Sfax, Tunisia
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Khabou B, Fakhfakh R, Tahri S, Bahloul E, Hadj Kacem H, Belmabrouk S, Hachicha H, Sellami K, Turki H, Masmoudi H, Abida O. miRNA implication in the pathogenesis and the outcome of Tunisian endemic pemphigus foliaceous. Exp Dermatol 2023. [PMID: 37114366 DOI: 10.1111/exd.14821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 11/30/2022] [Revised: 04/07/2023] [Accepted: 04/13/2023] [Indexed: 04/29/2023]
Abstract
Pemphigus foliaceous (PF) is a bullous autoimmune skin disease diagnosed through sera and skin analyses. PF severity is associated with maintained anti-Dsg1 sera levels and its prognosis is unpredictable. MicroRNA (miRNA), dynamic regulators of immune function, have been identified as potential biomarkers for some autoimmune diseases. This study aimed to assess the miRNA expression of miR-17-5p, miR-21-5p, miR-146a-5p, miR-155-5p and miR-338-3p using quantitative real-time PCR in peripheral blood mononuclear cells (PBMC) and lesional skin samples from untreated and treated PF patients (both remittent and chronic) over 3 months. Overall, miRNA expression was significantly higher in PBMC than in biopsy samples. Blood miR-21 expression was increased in untreated patients compared to controls and had a diagnostic value with an AUC of 0.78. After 6 weeks, it decreased significantly, similar to anti-Dsg1 antibodies and the PDAI score. In addition, a positive correlation was observed between cutaneous miR-21 expression and the disease activity score. Conversely, cutaneous expressions of miR-17, miR-146a and miR-155 were significantly higher in treated chronic patients compared to remittent ones. The cutaneous level of miR-155 positively correlated with pemphigus activity, making it a potential predictive marker for patients' clinical stratification with an AUC of 0.86.These findings suggest that blood miR-21 and cutaneous miR-155 can be used as supplemental markers for PF diagnosis and activity, respectively in addition to classical parameters.
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Affiliation(s)
- Boudour Khabou
- Autoimmunity, Cancer and Immunogenetics Research Laboratory (LR18SP12), Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
| | - Raouia Fakhfakh
- Autoimmunity, Cancer and Immunogenetics Research Laboratory (LR18SP12), Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
| | - Safa Tahri
- Autoimmunity, Cancer and Immunogenetics Research Laboratory (LR18SP12), Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
| | - Emna Bahloul
- Department of Dermatology, Hedi Chaker Hospital, University of Sfax, Sfax, Tunisia
| | - Hassen Hadj Kacem
- Department of Applied Biology College of Sciences, University of Sharjah, Sharjah, United Arab Emirates
- Research Institute of Science and Engineering, University of Sharjah, Sharjah, United Arab Emirates
| | - Sabrine Belmabrouk
- Research Institute of Science and Engineering, University of Sharjah, Sharjah, United Arab Emirates
| | - Hend Hachicha
- Autoimmunity, Cancer and Immunogenetics Research Laboratory (LR18SP12), Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
| | - Khadija Sellami
- Department of Dermatology, Hedi Chaker Hospital, University of Sfax, Sfax, Tunisia
| | - Hamida Turki
- Department of Dermatology, Hedi Chaker Hospital, University of Sfax, Sfax, Tunisia
| | - Hatem Masmoudi
- Autoimmunity, Cancer and Immunogenetics Research Laboratory (LR18SP12), Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
| | - Olfa Abida
- Autoimmunity, Cancer and Immunogenetics Research Laboratory (LR18SP12), Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
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Feki S, Ali YB, Fakhfakh R, Sakka S, Abida O, Bouattour N, Hachicha H, Dammak M, Mhiri C, Masmoudi H. Vitamin D-Related Parameters and Th17 Pathway in Multiple Sclerosis: A Serological, Transcriptomic and Functional Study. Mult Scler Relat Disord 2023. [DOI: 10.1016/j.msard.2022.104320] [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: 04/03/2023]
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Abida O, Elloumi N, Bahloul E, Hachicha H, Sellami K, Fakhfakh R, Marzouk S, Ben Ayed I, Mahfoudh N, Turki H, Masmoudi H. Evaluation of X chromosome inactivation in endemic Tunisian pemphigus foliaceus. Mol Genet Genomic Med 2022; 10:e2080. [PMID: 36349750 DOI: 10.1002/mgg3.2080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 11/12/2021] [Revised: 10/11/2022] [Accepted: 10/21/2022] [Indexed: 11/11/2022] Open
Abstract
BACKGROUND Almost 5% of the world's population develops an autoimmune disease (AID), it is considered the fourth leading cause of disability for women, who represent 78% of cases. The sex ratio when it comes to the most prevalent AID varies from 9:1 in systemic lupus erythematosus (SLE) to 13:1 in endemic Tunisian pemphigus foliaceus (PF). METHODS To test the potential involvement of skewed x-inactivation in the pathogenesis of Tunisian PF, we analyzed the methylation status of a highly polymorphic CAG repeat in the androgen receptor gene and evaluated the x chromosome inactivation (XCI) patterns in peripheral blood-leukocyte-derived DNA samples of female patients with PF (n = 98) compared to healthy control (HC) subjects (n = 150), as well as female patients with SLE (n = 98) were enrolled as a reference group. RESULTS XCI status was informative for 50 of the 98 PF patients (51%) and 70 of the 150 HC women (47%). Extremely skewed XCI patterns were more frequent in PF and SLEwomen than HC, but the difference was statistically significant only in women with SLE. No statistical difference was observed in XCI patterns between PF and SLE patients. PF phenotype-XCI correlation analysis revealed that (i) skewed XCI patterns may be involved in the disease's subtype and (ii) it was more pronounced in the endemic group than the sporadic one. Furthermore, preferential XCI showed an increase in heterozygote genotypes of PF's susceptibility polymorphisms in immunity-related X genes (FOXP3, AR, and TLR7) in PF patients compared to HC. CONCLUSION Our results suggest that skewed XCI could lead to hemizygosity of X-linked alleles that might unmask X-linked deleterious alleles.
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Affiliation(s)
- Olfa Abida
- "Autoimmunity, Cancer and Immunogenetics" Research Laboratory (LR18SP12), Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
| | - Nesrine Elloumi
- "Autoimmunity, Cancer and Immunogenetics" Research Laboratory (LR18SP12), Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
| | - Emna Bahloul
- Dermatology Department, HediChaker Hospital, University of Sfax, Sfax, Tunisia
| | - Hend Hachicha
- "Autoimmunity, Cancer and Immunogenetics" Research Laboratory (LR18SP12), Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
| | - Khadija Sellami
- Dermatology Department, HediChaker Hospital, University of Sfax, Sfax, Tunisia
| | - Raouia Fakhfakh
- "Autoimmunity, Cancer and Immunogenetics" Research Laboratory (LR18SP12), Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
| | - Sameh Marzouk
- Internal Medicine, HediChaker Hospital, University of Sfax, Sfax, Tunisia
| | - Ikhlas Ben Ayed
- Genetic Department, HediChaker Hospital, University of Sfax, Sfax, Tunisia
| | - Nadia Mahfoudh
- Immunology Department, HediChaker Hospital, University of Sfax, Sfax, Tunisia
| | - Hamida Turki
- Dermatology Department, HediChaker Hospital, University of Sfax, Sfax, Tunisia
| | - Hatem Masmoudi
- "Autoimmunity, Cancer and Immunogenetics" Research Laboratory (LR18SP12), Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
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Fakhfakh R, Zian Z, Elloumi N, Abida O, Bouallegui E, Houssaini H, Volpe E, Capone A, Hachicha H, Marzouk S, Bahloul Z, Masmoudi H. Th17 and Th1 cells in systemic lupus erythematosus with focus on lupus nephritis. Immunol Res 2022; 70:644-653. [PMID: 35666434 DOI: 10.1007/s12026-022-09296-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 05/23/2022] [Indexed: 12/26/2022]
Abstract
Systemic lupus erythematosus (SLE) is a complex autoimmune disease characterized by T cells imbalance. Indeed, a correlation between levels of Th17 cells and disease activity has been reported. Our work aimed to study the functional association of subpopulations of Th cells and SLE with (lupus nephritis, LN) or without (lupus erythematosus, LE) renal involvement in Tunisian patients through the detection of intracellular cytokines and surface marker expression. The IL23R and RORC mRNA expression levels were evaluated. The level of Th17 and Th1 cells was higher in LE and LN patients compared to healthy controls (HC) (p = 0.007 and p = 0.018, respectively), while Th1/17 cells were increased only in LN patients compared to HC (p = 0.011). However, no significant difference was described in the mRNA expression levels of RORC and IL-23R between SLE and HC. Our findings suggest that the Th1/Th17 differentiation mechanisms are altered in SLE and that this imbalance should have an important influence on the development and severity of the disease.
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Affiliation(s)
- Raouia Fakhfakh
- Autoimmunity, Cancer, and Immunogenetics Research Laboratory, LR18SP12, University Hospital Habib Bourguiba of Sfax, 3029, Sfax, Tunisia.
| | - Zeineb Zian
- Autoimmunity, Cancer, and Immunogenetics Research Laboratory, LR18SP12, University Hospital Habib Bourguiba of Sfax, 3029, Sfax, Tunisia
- Biomedical Genomics and Oncogenetics Research Laboratory, Faculty of Sciences and Techniques of Tangier, University Abdelmalek Essaâdi, Tetouan, Morocco
| | - Nesrine Elloumi
- Autoimmunity, Cancer, and Immunogenetics Research Laboratory, LR18SP12, University Hospital Habib Bourguiba of Sfax, 3029, Sfax, Tunisia
| | - Olfa Abida
- Autoimmunity, Cancer, and Immunogenetics Research Laboratory, LR18SP12, University Hospital Habib Bourguiba of Sfax, 3029, Sfax, Tunisia
| | - Emna Bouallegui
- Autoimmunity, Cancer, and Immunogenetics Research Laboratory, LR18SP12, University Hospital Habib Bourguiba of Sfax, 3029, Sfax, Tunisia
| | - Hana Houssaini
- Autoimmunity, Cancer, and Immunogenetics Research Laboratory, LR18SP12, University Hospital Habib Bourguiba of Sfax, 3029, Sfax, Tunisia
| | - Elisabetta Volpe
- Molecular Neuroimmunology Unit, IRCCS Fondazione Santa Lucia, Rome, Italy
| | - Alessia Capone
- Molecular Neuroimmunology Unit, IRCCS Fondazione Santa Lucia, Rome, Italy
| | - Hend Hachicha
- Autoimmunity, Cancer, and Immunogenetics Research Laboratory, LR18SP12, University Hospital Habib Bourguiba of Sfax, 3029, Sfax, Tunisia
| | - Sameh Marzouk
- Internal Medicine Department, Hedi Chaker University Hospital, Sfax, Tunisia
| | - Zouhir Bahloul
- Internal Medicine Department, Hedi Chaker University Hospital, Sfax, Tunisia
| | - Hatem Masmoudi
- Autoimmunity, Cancer, and Immunogenetics Research Laboratory, LR18SP12, University Hospital Habib Bourguiba of Sfax, 3029, Sfax, Tunisia
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Ferjeni Z, Raouia F, Abida O, Penha-Gonçalves C, Masmoudi H. Association of IGHM polymorphisms with susceptibility to type 1 diabetes. Immunol Res 2022; 70:325-330. [PMID: 35048256 DOI: 10.1007/s12026-021-09252-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 11/04/2021] [Indexed: 01/15/2023]
Abstract
Differentiation of B lymphocytes is accompanied by a regulated switch in the expression pattern and stability of surface and secretory immunoglobulins (Igs). Several lines of evidence show that autoimmune responses evolving in much autoimmune pathologies were associated with a high level of humoral Ig, but their pathogenic role remains elusive. The aim of this study was to test the hypothesis that variants at the immunoglobulin heavy-chain IGH locus are genetic determinants to T1D susceptibility. Here, we tested the genetic association of the variants of the immunoglobulin heavy-chain IGH locus as a genetic determinant to T1D susceptibility. A total of 255 subjects from 59 Tunisian families were genotyped for 15 SNPs mapping in 4 regions in IGH locus. We found that rs1950942, rs2180790, rs1808152, and rs1956596 of IGHM and rs2516751 variant located in the IGHA1/IGHG2 region were significantly associated with a risk for T1D p = 7E-3; p = 0.03; p = 0.02; p = 0.043; and p = 3.65E-5, respectively. The TATGG haplotype derived from LD across three SNPs from IGHM gene and two SNPs from IGHD gene was significantly over-transmitted from parents to affect offspring. Our results suggest that genetic variants at the IGH locus are associated with T1D susceptibility. These variations may predispose to IgG AutoAbs production against pancreatic antigens and AutoAbs multi-reactivity, leading to T1D development.
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Affiliation(s)
- Zouidi Ferjeni
- Biology Department, Faculty of Arts and Sciences of Muhayil Aseer, King Khalid University, Abha, Saudi Arabia.
- Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia.
| | - Fakhfakh Raouia
- Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
| | - O Abida
- Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
| | | | - H Masmoudi
- Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
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Elloumi N, Tahri S, Fakhfakh R, Abida O, Mahfoudh N, Hachicha H, Marzouk S, Bahloul Z, Masmoudi H. Role of innate immune receptors TLR4 and TLR2 polymorphisms in systemic lupus erythematosus susceptibility. Ann Hum Genet 2022; 86:137-144. [PMID: 35128637 DOI: 10.1111/ahg.12458] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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: 05/28/2021] [Revised: 12/29/2021] [Accepted: 01/04/2022] [Indexed: 01/22/2023]
Abstract
AIM Through their recognition of various bacterial cell wall components, TLR2 and TLR4 participate in the innate response and modulate the activation of adaptive immunity. Therefore, the genetic background of these receptors might play a crucial role in autoimmune diseases such as systemic lupus erythematosus (SLE). In this study, we investigated the possible association between polymorphisms within TLR2 and TLR4 genes with SLE susceptibility. MATERIAL AND METHODS A total of 100 SLE patients and 200 unrelated healthy controls of the Tunisian population were enrolled in the study.TLR4rs4986790, TLR4rs4986791, and TLR2rs5743708 genotyping were performed using a polymerase chain reaction-restriction fragment length polymorphism method. The number of guanine-thymine (GT) repeat microsatellite in the intron 2 of TLR2 gene was analyzed by sequencing. RESULTS We reported a lack of allelic and genotypic association between SNPs of TLR4 and TLR2 genes and SLE pathogenesis. No correlation was found with any SLE features. However, SLE susceptibility was associated with the GT repeat microsatellite polymorphism in the human TLR2 gene. Further subclassification of alleles into three subclasses revealed a significant association between the long-sized repeats ((GT) >23) and SLE. CONCLUSION Though the results showed the absence of genetic association of TLR4 and TLR2 SNPs with the risk of developing SLE, we have identified a protective association between the microsatellite polymorphism in intron 2 of the TLR2 gene and SLE. Functionally, these (GT)n repeats may confer modifying effects or susceptibility to certain inflammatory conditions.
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Affiliation(s)
- Nesrine Elloumi
- Research laboratory LR18/SP12 auto-immunity, cancer and immunogenetics, Immunology Department, Habib Bourguiba university Hospital, University of Sfax, Sfax, Tunisia
| | - Safa Tahri
- Research laboratory LR18/SP12 auto-immunity, cancer and immunogenetics, Immunology Department, Habib Bourguiba university Hospital, University of Sfax, Sfax, Tunisia
| | - Raouia Fakhfakh
- Research laboratory LR18/SP12 auto-immunity, cancer and immunogenetics, Immunology Department, Habib Bourguiba university Hospital, University of Sfax, Sfax, Tunisia
| | - Olfa Abida
- Research laboratory LR18/SP12 auto-immunity, cancer and immunogenetics, Immunology Department, Habib Bourguiba university Hospital, University of Sfax, Sfax, Tunisia
| | - Nadia Mahfoudh
- Immunology Department, Hedi Chaker University Hospital, University of Sfax, Sfax, Tunisia
| | - Hend Hachicha
- Research laboratory LR18/SP12 auto-immunity, cancer and immunogenetics, Immunology Department, Habib Bourguiba university Hospital, University of Sfax, Sfax, Tunisia
| | - Sameh Marzouk
- Internal Medicine Department, Hedi Chaker Hospital, University of Sfax, Sfax, Tunisia
| | - Zouhir Bahloul
- Internal Medicine Department, Hedi Chaker Hospital, University of Sfax, Sfax, Tunisia
| | - Hatem Masmoudi
- Research laboratory LR18/SP12 auto-immunity, cancer and immunogenetics, Immunology Department, Habib Bourguiba university Hospital, University of Sfax, Sfax, Tunisia
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Dhaffouli F, Hachicha H, Abida O, Gharbi N, Elloumi N, Kanoun H, Belguith N, Marzouk S, Fakhfakh R, Sawsen F, Mnif H, Kamoun H, Bahloul Z, Masmoudi H. Annexin A1 and its receptor gene polymorphisms in systemic lupus erythematosus in the Tunisian population. Clin Rheumatol 2022; 41:1359-1369. [PMID: 35028743 DOI: 10.1007/s10067-022-06057-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 10/02/2021] [Revised: 01/01/2022] [Accepted: 01/04/2022] [Indexed: 12/18/2022]
Abstract
BACKGROUND An association between ANXA1, FPR1 and FPR2 gene polymorphisms and the patho-physiology of many human diseases was suggested by numerous studies. OBJECTIVE Our study aimed to evaluate association between common polymorphisms in the 9q21.13 and 19q13.41 and susceptibility to systemic lupus erythematosus (SLE) in the Tunisian population. MATERIALS We performed a case-control study on 107 Tunisian SLE patients and 122 healthy controls to explore 9 polymorphisms of the three studied genes: rs2811226 and rs3739959 (ANXA1), rs5030880, rs1042229, rs1461765570, rs17849971, rs867228 (FPR1), rs17694990 and rs11666254 (FPR2). RESULTS Four polymorphisms were found to be linked with SLE susceptibility: rs3739959-ANXA1 > G and GG (p = 0.021, OR = 1.73 and p = 0.014, OR = 2.06 respectively), rs867228-FPR1 > TT (p = 0.014, OR = 4.59), rs11666254-FPR2 > GG (p = 0.019, OR = 8.34) and rs17694990-FPR2 > T (p = 0.05, OR = 1.506). In homogenous groups of SLE patients depending on clinical manifestations and serological results, previous associations were confirmed with a panoply of manifestations of lupus including lupus nephritis, malar rash, mouth ulceration and hypocomplementia. CONCLUSION Our study showed an association between ANXA1 > rs3739959, FPR1 > rs867228, FPR2 > rs11666254, FPR2 > rs17694990 and SLE susceptibility. Our results also showed a strong association between the two ANXA1 studied SNPs and LN which allowed us to suggest these two SNPs as biomarkers of LN development in SLE. Further research is needed to understand by which mechanism the gene variants affect susceptibility to SLE. Key Points • Lupus erythematosus is an autoimmune disease in which a panoply of factors are implicated • Annexin A1 interaction with its receptors are suggested as a target in therapy of a panoply of human disease in particular cancers • The present results highlighted the implication of Annexin A1 and its receptors gene polymorphisms in the physiopathology of lupus, in particular in the involvement of renal and cutaneous lesions.
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Affiliation(s)
- Fatma Dhaffouli
- Research Laboratoy LR18/SP12 "Autoimmunity, Cancer And Immunogenetics", Habib Bourguiba University Hospital, University of Sfax, Sfax, Tunisia.
| | - Hend Hachicha
- Research Laboratoy LR18/SP12 "Autoimmunity, Cancer And Immunogenetics", Habib Bourguiba University Hospital, University of Sfax, Sfax, Tunisia.,Department of Immunology, Habib Bourguiba University Hospital, University of Sfax, Sfax, Tunisia
| | - Olfa Abida
- Research Laboratoy LR18/SP12 "Autoimmunity, Cancer And Immunogenetics", Habib Bourguiba University Hospital, University of Sfax, Sfax, Tunisia
| | - Nourhene Gharbi
- Research Laboratory of Human Molecular Genetics, Hedi Chaker University Hospital of Sfax, Sfax, Tunisia
| | - Nesrine Elloumi
- Research Laboratoy LR18/SP12 "Autoimmunity, Cancer And Immunogenetics", Habib Bourguiba University Hospital, University of Sfax, Sfax, Tunisia
| | - Houda Kanoun
- Research Laboratory of Human Molecular Genetics, Hedi Chaker University Hospital of Sfax, Sfax, Tunisia
| | - Neila Belguith
- Research Laboratory of Human Molecular Genetics, Hedi Chaker University Hospital of Sfax, Sfax, Tunisia.,Department of Congenital and Hereditary Diseases, Charles Nicolle Hospital, Tunis, Tunisia
| | - Sameh Marzouk
- Department of Internal Medicine, Hedi Chaker University Hospital, Sfax, Tunisia
| | - Raouia Fakhfakh
- Research Laboratoy LR18/SP12 "Autoimmunity, Cancer And Immunogenetics", Habib Bourguiba University Hospital, University of Sfax, Sfax, Tunisia
| | - Feki Sawsen
- Research Laboratoy LR18/SP12 "Autoimmunity, Cancer And Immunogenetics", Habib Bourguiba University Hospital, University of Sfax, Sfax, Tunisia.,Department of Immunology, Habib Bourguiba University Hospital, University of Sfax, Sfax, Tunisia
| | - Hela Mnif
- The Regional Blood Transfusion Center of Sfax, Sfax, Tunisia
| | - Hassen Kamoun
- Research Laboratory of Human Molecular Genetics, Hedi Chaker University Hospital of Sfax, Sfax, Tunisia
| | - Zouhir Bahloul
- Department of Internal Medicine, Hedi Chaker University Hospital, Sfax, Tunisia
| | - Hatem Masmoudi
- Research Laboratoy LR18/SP12 "Autoimmunity, Cancer And Immunogenetics", Habib Bourguiba University Hospital, University of Sfax, Sfax, Tunisia.,Department of Immunology, Habib Bourguiba University Hospital, University of Sfax, Sfax, Tunisia
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Fakhfakh R, Kmiha S, Tahri S, Feki S, Zouidi F, Abida O, Hachicha M, Kammoun T, Masmoudi H. Autoantibodies to Zinc Transporter 8 and SLC30A8 Genotype in Type 1 Diabetes Childhood: A Pioneering Study in North Africa. J Diabetes Res 2022; 2022:2539871. [PMID: 35656360 PMCID: PMC9152414 DOI: 10.1155/2022/2539871] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 02/22/2022] [Accepted: 04/29/2022] [Indexed: 12/07/2022] Open
Abstract
BACKGROUND Type 1 diabetes (T1D) occurs as a result of insulin deficiency due to destructive lesions of pancreatic β cells. In addition to classical autoantibodies (Abs) to islet cell antigens, antizinc transporter 8 Abs (ZnT8-Ab) have been recently described in T1D. OBJECTIVE As no data on ZnT8-Ab in Tunisian patients has been reported, we aim to evaluate the relationships between ZnT8-Ab, ZnT8 coding gene (SLC30A8) promoter polymorphism, and T1D risk in newly diagnosed children. METHODS ZnT8-Ab were measured in the serum of T1D newly affected children (n = 156) who were admitted to the pediatric department of the Hedi Chaker University Hospital of Sfax. Rs13266634 was genotyped in T1D children and 79 of their first-degree parents. The SPSS software was used to analyze the serological data. Allelic association analysis was conducted with family-based association tests implemented in the FBAT program v1.5.1. RESULTS ZnT8-Ab was detected in 66/156 (42.3%) of T1D newly diagnosed children. Among them, 6 (9%) presented ZnT8-Ab as the only humoral marker. The inclusion of ZnT8-Ab increased the number of Ab-positive patients to 90% and reduced the negative ones by 27%. There was no evidence of any overtransmission of any allele of the rs13266634 C/T polymorphism from parents to affected T1D children, nor of any correlation with any clinical or serological parameter. After the T1D disease onset age adjustment, a significant association was observed with the C allele suggesting that it could have a susceptibility role. CONCLUSION ZnT8-Ab appears as a relevant diagnostic marker for T1D in Tunisian children, especially at the onset of the disease as teenagers.
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Affiliation(s)
- Raouia Fakhfakh
- Autoimmunity, Cancer, And Immunogenetics Research Laboratory, University Hospital Habib Bourguiba of Sfax, Tunisia
| | - Sana Kmiha
- Pediatrics Department, University Hospital Hedi Chaker of Sfax, Tunisia
| | - Safa Tahri
- Autoimmunity, Cancer, And Immunogenetics Research Laboratory, University Hospital Habib Bourguiba of Sfax, Tunisia
| | - Sawsan Feki
- Autoimmunity, Cancer, And Immunogenetics Research Laboratory, University Hospital Habib Bourguiba of Sfax, Tunisia
| | - Ferjeni Zouidi
- Autoimmunity, Cancer, And Immunogenetics Research Laboratory, University Hospital Habib Bourguiba of Sfax, Tunisia
| | - Olfa Abida
- Autoimmunity, Cancer, And Immunogenetics Research Laboratory, University Hospital Habib Bourguiba of Sfax, Tunisia
| | - Mongia Hachicha
- Pediatrics Department, University Hospital Hedi Chaker of Sfax, Tunisia
| | - Thouraya Kammoun
- Pediatrics Department, University Hospital Hedi Chaker of Sfax, Tunisia
| | - Hatem Masmoudi
- Autoimmunity, Cancer, And Immunogenetics Research Laboratory, University Hospital Habib Bourguiba of Sfax, Tunisia
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Jerbi A, Hachicha H, Feki S, Abida O, Bahloul E, Sellami K, Bouzid A, Turki H, Masmoudi A, Masmoudi H. Autoantibodies against Desmoglein 1 and 3 in South Tunisian pemphigus. Tunis Med 2021; 99:992-999. [PMID: 35288901 PMCID: PMC8972175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
BACKGROUND Desmoglein (Dsg) 1 and 3 are the 2 major autoantigens in pemphigus foliaceus (PF) and pemphigus vulgaris (PV). AIM We aimed to determine anti-Dsg1 and 3 Abs'usefulness in the diagnosis of pemphigus and to assess the correlation of these antibodies (Abs) with clinical phenotype and disease activity in south Tunisian patients. METHODS We retrospectively analyzed 131 samples from 82 patients (52 with PF and 30 with PV) during follow-up. Anti-Dsg1 and 3 Abs were measured by ELISA. Consecutive anti-Dsg1 and 3 Abs were correlated with disease activity. Receiver operating characteristics (ROC) curve were calculated to determine anti-Dsg1 and 3 Abs'cut-offs with optimal sensitivity and specificity for disease activity. RESULTS Anti-Dsg1 and 3 levels were associated to in PF and PV patients respectively (p<0,001). Anti-Dsg1 and 3 Ab were associated with skin (95%) and mucosal (60%) lesions, respectively. A significant decrease of anti-Dsg1 Abs was observed in patients with PF in clinical remission (36 ± 62 U/mL; (p=0,04). No correlation was found between anti-Dsg3 Abs and the course of mucosal lesions in PV (p=0,3). During follow-up, anti-Dsg1 Abs correlated with relapses (177 ±60 U/mL ; p=0,04). The 161,5 U/mL cut-off for anti-Dsg1 Abs provided 100% specificity and 86,4% sensitivity in PF disease activity. The 30,7U/mL cut-off for anti-Dsg3 provided 89,5% sensitivity and 100% specificity in PV. CONCLUSIONS High anti-Dsg3 Abs values are not always associated with PV disease activity. Anti-Dsg1 Abs showed a closer relationship with skin activity in PS and should be therefore taken into account in management of pemphigus patients.
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Affiliation(s)
- Ameni Jerbi
- 1-Laboratoire d’Immunologie, CHU Habib Bourguiba Sfax, Tunisie / Faculté de médecine de Sfax
| | - Hend Hachicha
- 1-Laboratoire d’Immunologie, CHU Habib Bourguiba Sfax, Tunisie / Faculté de médecine de Sfax
| | - Sawsan Feki
- 1-Laboratoire d’Immunologie, CHU Habib Bourguiba Sfax, Tunisie / Faculté de médecine de Sfax
| | - Olfa Abida
- 1-Laboratoire d’Immunologie, CHU Habib Bourguiba Sfax, Tunisie / Faculté de médecine de Sfax
| | - Emna Bahloul
- 2-Service de Dermatologie, CHU Hedi CHAKER Sfax, Tunisie / Faculté de médecine de Sfax
| | - Khadija Sellami
- 2-Service de Dermatologie, CHU Hedi CHAKER Sfax, Tunisie / Faculté de médecine de Sfax
| | - Amina Bouzid
- 1-Laboratoire d’Immunologie, CHU Habib Bourguiba Sfax, Tunisie / Faculté de médecine de Sfax
| | - Hamida Turki
- 2-Service de Dermatologie, CHU Hedi CHAKER Sfax, Tunisie / Faculté de médecine de Sfax
| | - Abderrahmen Masmoudi
- 2-Service de Dermatologie, CHU Hedi CHAKER Sfax, Tunisie / Faculté de médecine de Sfax
| | - Hatem Masmoudi
- 1-Laboratoire d’Immunologie, CHU Habib Bourguiba Sfax, Tunisie / Faculté de médecine de Sfax
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Jerbi A, Feki S, Chtourou L, Mariam B, Hend H, Abida O, Amouri A, Tahri N, Masmoudi H. Association du polymorphisme du gène de l’interleukine 17A à la susceptibilité aux maladies inflammatoires chroniques de l’intestin. Rev Med Interne 2021. [DOI: 10.1016/j.revmed.2021.03.155] [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: 10/21/2022]
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13
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Elloumi N, Fakhfakh R, Abida O, Hachicha H, Marzouk S, Fourati M, Bahloul Z, Masmoudi H. RNA receptors, TLR3 and TLR7, are potentially associated with SLE clinical features. Int J Immunogenet 2021; 48:250-259. [PMID: 33650302 DOI: 10.1111/iji.12531] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 06/30/2020] [Revised: 01/10/2021] [Accepted: 01/27/2021] [Indexed: 02/06/2023]
Abstract
The influence of intracellular Toll-like-receptors (TLR), recognized as nucleic acid sensors, in the immunopathogenesis of systemic lupus erythematosus (SLE) is increasingly explored. Yet, the results of both functional and genetic studies remain conflictual. We evaluated the association between TLR3 and TLR7 genes selected variants and SLE and investigated the possible relationship with clinical and serological parameters. Then, we studied the genetic expression of these receptors, and if the TLR7 gene evades X chromosome inactivation (XCI). Our study covers 106 cases and 200 controls, genotyped using a polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) technique. TLR3 and TLR7 expression level was assessed by qPCR carried, respectively, on renal tissues and PBMC, and methylation status was evaluated by methylation-specific PCR. Results were statistically analysed using Shesis software, χ2 , and Mann-Whitney test. Significant associations with SLE susceptibility were found for the TLR3 rs3775291, rs5743305 and rs3775294 polymorphisms. Further subgroup analysis, TLR3 rs3775291 and rs3775294 polymorphisms were significantly associated with lupus nephritis (LN) and even correlate with the presence of auto-antibodies binding RNA molecules. SLE and LN were more common in men with rs3853839-G variant within TLR7 gene versus those carrying the C allele. Moreover, the role of the G allele in the TLR7 expression up-regulation was confirmed. However, gene expression analysis showed no significant differences in TLR3 and TLR7 mRNA levels between LN patient biopsies and healthy tissues (p > .05). When comparing patients and controls, no statistical difference was observed in XCI pattern. Otherwise, notable associations were raised between TLR3 and TLR7 gene variants and clinical and serological lupus features pointing towards the role of genetic background in the physiopathogenesis of the disease.
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Affiliation(s)
- Nesrine Elloumi
- Research Laboratory LR18/SP12 Auto-immunity, Cancer and Immunogenetics, Immunology Department, Habib Bourguiba University Hospital, University of Sfax, Sfax, Tunisia
| | - Raouia Fakhfakh
- Research Laboratory LR18/SP12 Auto-immunity, Cancer and Immunogenetics, Immunology Department, Habib Bourguiba University Hospital, University of Sfax, Sfax, Tunisia
| | - Olfa Abida
- Research Laboratory LR18/SP12 Auto-immunity, Cancer and Immunogenetics, Immunology Department, Habib Bourguiba University Hospital, University of Sfax, Sfax, Tunisia
| | - Hend Hachicha
- Research Laboratory LR18/SP12 Auto-immunity, Cancer and Immunogenetics, Immunology Department, Habib Bourguiba University Hospital, University of Sfax, Sfax, Tunisia
| | - Sameh Marzouk
- Urology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
| | - Mohamed Fourati
- Internal Medicine Department, Hedi Chaker Hospital, University of Sfax, Sfax, Tunisia
| | - Zouhir Bahloul
- Urology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
| | - Hatem Masmoudi
- Research Laboratory LR18/SP12 Auto-immunity, Cancer and Immunogenetics, Immunology Department, Habib Bourguiba University Hospital, University of Sfax, Sfax, Tunisia
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Fakhfakh R, Feki S, Elleuch A, Neifar M, Marzouk S, Elloumi N, Hachicha H, Abida O, Bahloul Z, Ayadi F, Masmoudi H. Vitamin D status and CYP27B1-1260 promoter polymorphism in Tunisian patients with systemic lupus erythematosus. Mol Genet Genomic Med 2021; 9:e1618. [PMID: 33594806 PMCID: PMC8104169 DOI: 10.1002/mgg3.1618] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 01/09/2021] [Accepted: 01/18/2021] [Indexed: 12/15/2022] Open
Abstract
Aim An association between serum vitamin D (Vit D) levels and systemic lupus erythematosus (SLE) has been reported by several studies that suggested the involvement of genetically determined characteristics of enzymes of vitamin D metabolism. Our study aimed to evaluate the relationship between 25 hydroxyvitamin D (25[OH]D) level, the most representative metabolite of VitD status, and polymorphism of the cytochrome P450, CYP27B1 gene, which influence vitamin D metabolism, and serum levels, in SLE Tunisian patients. Material and Methods A cross‐sectional study has been conducted in SLE patients (supplemented and not supplemented patients), matched to healthy controls by age and gender. The 25[OH]D serum level was measured by chemiluminescence assay and CYP27B1‐1260 genetic polymorphism was carried out using PCR‐RFLP methods. Statistical analysis was made using Shesis and SPSS.20 Software. Results Controls and Vit D not supplemented patients’ groups presented the highest percentage of hypovitaminosis D. A significant difference in the mean level of circulating 25[OH]D between Vit D supplemented SLE patients and controls was observed (23.91 ng/ml and 7.18 ng/ml, respectively p = 3.4 105). Our results showed a correlation of high 25[OH]D level with complement component 3 levels and prednisolone drug. Moreover, the analysis of CYP27B1‐1260 polymorphism in SLE patients and controls revealed a nonsignificant allelic or genotypic association. Conclusion Despite the sunny climate, the high prevalence of Vit D deficiency is common in Tunisia. This hypovitaminosis D feature may affect the Vit D levels in our SLE patients but a direct association with the disease or with the genetically determined features remains unclear. More studies are needed to establish thresholds and susceptibility genes according to the characteristics of each population.
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Affiliation(s)
- Raouia Fakhfakh
- Autoimmunity, Cancer and immunogenetics research laboratory, University hospital Habib Bourguiba of Sfax, Sfax, Tunisia
| | - Sawsan Feki
- Autoimmunity, Cancer and immunogenetics research laboratory, University hospital Habib Bourguiba of Sfax, Sfax, Tunisia
| | - Aida Elleuch
- Biochemistry Department, Habib Bourguiba University Hospital, Sfax, Tunisia
| | - Manel Neifar
- Biochemistry Department, Habib Bourguiba University Hospital, Sfax, Tunisia
| | - Sameh Marzouk
- Internal Medicine Department, HediChaker University Hospital, Sfax, Tunisia
| | - Nesrine Elloumi
- Autoimmunity, Cancer and immunogenetics research laboratory, University hospital Habib Bourguiba of Sfax, Sfax, Tunisia
| | - Hend Hachicha
- Autoimmunity, Cancer and immunogenetics research laboratory, University hospital Habib Bourguiba of Sfax, Sfax, Tunisia
| | - Olfa Abida
- Autoimmunity, Cancer and immunogenetics research laboratory, University hospital Habib Bourguiba of Sfax, Sfax, Tunisia
| | - Zouhir Bahloul
- Internal Medicine Department, HediChaker University Hospital, Sfax, Tunisia
| | - Fatma Ayadi
- Biochemistry Department, Habib Bourguiba University Hospital, Sfax, Tunisia
| | - Hatem Masmoudi
- Autoimmunity, Cancer and immunogenetics research laboratory, University hospital Habib Bourguiba of Sfax, Sfax, Tunisia
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Abida O, Bahloul E, Ben Jmaa M, Sellami K, Zouidi F, Fakhfakh R, Mahfoudh N, Turki H, Masmoudi H. Chromosome 2q33genetic polymorphisms in Tunisian endemic pemphigus foliaceus. Mol Genet Genomic Med 2020; 8:e1476. [PMID: 32875738 PMCID: PMC7667300 DOI: 10.1002/mgg3.1476] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 07/17/2020] [Accepted: 08/05/2020] [Indexed: 12/12/2022] Open
Abstract
Background Several studies have suggested that polymorphisms within genes encoding T‐lymphocyte immune regulating molecules: CD28, CTLA‐4, and ICOS, may alter the signaling process and subsequently could be involved in susceptibility to a broad spectrum of autoimmune diseases. Methods This study aimed to replicate associations between common polymorphisms in the 2q33.2 cluster and susceptibility to pemphigus foliaceus (PF) in the Tunisian population. We investigated seven polymorphisms: rs3116496 and rs1879877 (CD28), rs231775, rs3087243, and (AT)n repeat (CTLA4); rs11889031 and rs10932029 (ICOS) in a case–control study which enrolled 106 Tunisian PF patients and 205 matched healthy controls. Results We confirmed the associations with CTLA4((AT)13, p = 0.00137, OR = 3.96 and (AT)20, p = 0.008, OR = 5.22; respectively) and ICOS genes (rs10932029>CT, p = 0.034, OR = 2.12 and rs10932029>TT, p = 0.04 and OR = 0.41). Conclusion Our results indicate that susceptibility to PF is located in the proximal and the distal 3′ flanking region of the CTLA4/ICOS promoter. These findings may open avenues to the treatment of patients with biological drugs targeting CTLA4/ICOS molecules, in a personalized manner to achieve more effective treatment.
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Affiliation(s)
- Olfa Abida
- "Autoimmunity, Cancer And Immunogenetics" research laboratory (LR18SP12), Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
| | - Emna Bahloul
- Dermatology Department, Hedi Chaker Hospital, University of Sfax, Sfax, Tunisia
| | - Mariem Ben Jmaa
- "Autoimmunity, Cancer And Immunogenetics" research laboratory (LR18SP12), Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
| | - Khadija Sellami
- Dermatology Department, Hedi Chaker Hospital, University of Sfax, Sfax, Tunisia
| | - Ferjani Zouidi
- "Autoimmunity, Cancer And Immunogenetics" research laboratory (LR18SP12), Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
| | - Raouia Fakhfakh
- "Autoimmunity, Cancer And Immunogenetics" research laboratory (LR18SP12), Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
| | - Nadia Mahfoudh
- Immunology Department, HediChaker Hospital, University of Sfax, Sfax, Tunisia
| | - Hamida Turki
- Dermatology Department, Hedi Chaker Hospital, University of Sfax, Sfax, Tunisia
| | - Hatem Masmoudi
- "Autoimmunity, Cancer And Immunogenetics" research laboratory (LR18SP12), Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
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Jerbi A, Hachicha H, Bahloul E, Feki S, Sellami K, Abida O, Bouzid A, Turki H, Masmoudi A, Masmoudi H. South Tunisian pemphigus patients beyond 60 years: epidemiological profile and evolution. Int J Dermatol 2019; 58:e219-e220. [PMID: 31334831 DOI: 10.1111/ijd.14594] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Revised: 06/18/2019] [Accepted: 07/04/2019] [Indexed: 11/30/2022]
Affiliation(s)
- Ameni Jerbi
- Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
| | - Hend Hachicha
- Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
| | - Emna Bahloul
- Dermatology Department, Hedi Chaker Hospital, University of Sfax, Sfax, Tunisia
| | - Sawsan Feki
- Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
| | - Khadija Sellami
- Dermatology Department, Hedi Chaker Hospital, University of Sfax, Sfax, Tunisia
| | - Olfa Abida
- Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
| | - Amina Bouzid
- Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
| | - Hamida Turki
- Dermatology Department, Hedi Chaker Hospital, University of Sfax, Sfax, Tunisia
| | | | - Hatem Masmoudi
- Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
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Masmoudi H, Abida O, Masmoudi A, Turki H. Update on immunogenetics of Tunisian endemic pemphigus foliaceus. J Leukoc Biol 2018; 105:257-265. [DOI: 10.1002/jlb.mr0318-132r] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 10/19/2018] [Accepted: 11/13/2018] [Indexed: 01/15/2023] Open
Affiliation(s)
- Hatem Masmoudi
- Department of ImmunologyAutoimmunity and Immunogentics Resaerch UnitHabib Bourguiba HospitalUniversity of Sfax Sfax Tunisia
| | - Olfa Abida
- Department of ImmunologyAutoimmunity and Immunogentics Resaerch UnitHabib Bourguiba HospitalUniversity of Sfax Sfax Tunisia
| | | | - Hamida Turki
- Department of DermatologyHedi Chaker HospitalUniversity of Sfax Sfax Tunisia
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Bahloul E, Masmoudi A, Jerbi A, Abida O, Ben Jemaa M, Sellami K, Hachicha H, Boudaya S, Mseddi M, Masmoudi H, Amouri M, Turki H. Doit-on continuer à traiter le pemphigus superficiel par la dapsone ? Ann Dermatol Venereol 2018. [DOI: 10.1016/j.annder.2018.09.157] [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: 11/30/2022]
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Jerbi A, Hachicha H, Feki S, Bahloul E, Sellami K, Abida O, Charfi S, Bouzid A, Sellami Boudawara T, Turki H, Masmoudi A, Masmoudi H. Pemphigus herpetiformis in South Tunisia: a clinical expression of pemphigus foliaceus? Int J Dermatol 2018; 57:1094-1101. [DOI: 10.1111/ijd.14139] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Revised: 06/08/2018] [Accepted: 06/12/2018] [Indexed: 11/30/2022]
Affiliation(s)
- Ameni Jerbi
- Immunology Department; Habib Bourguiba Hospital; University of Sfax; Sfax Tunisia
| | - Hend Hachicha
- Immunology Department; Habib Bourguiba Hospital; University of Sfax; Sfax Tunisia
| | - Sawsan Feki
- Immunology Department; Habib Bourguiba Hospital; University of Sfax; Sfax Tunisia
| | - Emna Bahloul
- Dermatology Department; Hedi Chaker Hospital; University of Sfax; Sfax Tunisia
| | - Khadija Sellami
- Dermatology Department; Hedi Chaker Hospital; University of Sfax; Sfax Tunisia
| | - Olfa Abida
- Immunology Department; Habib Bourguiba Hospital; University of Sfax; Sfax Tunisia
| | - Slim Charfi
- Pathology Department; Habib Bourguiba Hospital; University of Sfax; Sfax Tunisia
| | - Amina Bouzid
- Immunology Department; Habib Bourguiba Hospital; University of Sfax; Sfax Tunisia
| | | | - Hamida Turki
- Dermatology Department; Hedi Chaker Hospital; University of Sfax; Sfax Tunisia
| | | | - Hatem Masmoudi
- Immunology Department; Habib Bourguiba Hospital; University of Sfax; Sfax Tunisia
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Feki S, Bouzid D, Abida O, Chtourou L, Elloumi N, Toumi A, Hachicha H, Amouri A, Tahri N, Masmoudi H. Genetic association and phenotypic correlation of TLR4 but not NOD2 variants with Tunisian inflammatory bowel disease. J Dig Dis 2017; 18:625-633. [PMID: 29055077 DOI: 10.1111/1751-2980.12552] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 09/29/2017] [Accepted: 10/15/2017] [Indexed: 12/11/2022]
Abstract
OBJECTIVE The common association between NOD2/CARD15 and TLR4 gene variants with inflammatory bowel disease (IBD) has not been replicated in all studies. We studied the polymorphism of these two genes in Tunisian patients with IBD. METHODS Polymorphisms of NOD2 (R702W, G908R and L1007fs) and TLR4 (Asp299Gly and Thr399Ile) genes were analyzed in 106 patients with IBD (68 with ulcerative colitis [UC], 38 with Crohn's disease [CD]) and 160 healthy controls using polymerase chain reaction-restriction fragment length polymorphism. Genotypes and phenotypes were correlated. RESULTS The mutated allele of TLR4-Thr399Ile was strongly associated with IBD (9.4% in IBD, 7.4% in UC and 13.2% in CD vs 2.5% in controls; P = 0.0004, 0.014 and 0.00006, respectively). Heterozygous genotypes were significantly more frequent in patients with IBD (17.0%), UC (14.7%) and CD (21.1%) than in controls (5.0%) (P = 0.0012, 0.012 and 0.001, respectively). Interestingly, the wild genotype was found to be protective (odds ratio 0.24). The mutated allele of TLR4-Asp299Gly was more frequent in controls (6.8%) than in patients with IBD (2.9%). A phenotypic correlation of Asp299Gly-AG genotype with arthritis in UC patients was detected (P = 0.003). Regarding the NOD2 gene, the common variations studied were not polymorphic and there was no genetic association with IBD. CONCLUSION The TLR4-Thr399Ile variant was strongly associated with susceptibility to IBD, whereas TLR4-Asp299Gly seems to play a role in the clinical expression of UC. The rarity and non-association of NOD2 mutations with IBD may reveal a genetic characteristic of the population in our region.
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Affiliation(s)
- Sawsan Feki
- Department of Immunology, Habib Bourguiba University Hospital, Sfax, Tunisia
| | - Dorra Bouzid
- Department of Immunology, Habib Bourguiba University Hospital, Sfax, Tunisia
| | - Olfa Abida
- Department of Immunology, Habib Bourguiba University Hospital, Sfax, Tunisia
| | - Lassaad Chtourou
- Department of Gastroenterology, Hedi Chaker University Hospital, University of Sfax, Sfax, Tunisia
| | - Nesrine Elloumi
- Department of Immunology, Habib Bourguiba University Hospital, Sfax, Tunisia
| | - Amina Toumi
- Department of Immunology, Habib Bourguiba University Hospital, Sfax, Tunisia
| | - Hend Hachicha
- Department of Immunology, Habib Bourguiba University Hospital, Sfax, Tunisia
| | - Ali Amouri
- Department of Gastroenterology, Hedi Chaker University Hospital, University of Sfax, Sfax, Tunisia
| | - Nabil Tahri
- Department of Gastroenterology, Hedi Chaker University Hospital, University of Sfax, Sfax, Tunisia
| | - Hatem Masmoudi
- Department of Immunology, Habib Bourguiba University Hospital, Sfax, Tunisia
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Elloumi N, Fakhfakh R, Abida O, Ayadi L, Marzouk S, Hachicha H, Fourati M, Bahloul Z, Mhiri MN, Kammoun K, Masmoudi H. Relevant genetic polymorphisms and kidney expression of Toll-like receptor (TLR)-5 and TLR-9 in lupus nephritis. Clin Exp Immunol 2017; 190:328-339. [PMID: 28763101 DOI: 10.1111/cei.13022] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/28/2017] [Indexed: 12/07/2022] Open
Abstract
Toll-like receptor (TLR) genetic polymorphisms may modify their expression causing inflammatory disorders and influencing both susceptibility and severity of lupus erythematosus. We aim to determine whether TLR-5 and TLR-9 gene polymorphisms are implicated in the susceptibility to systemic lupus erythematosus (SLE) and lupus nephritis (LN) and to evaluate their expressions and distributions in renal LN patients' biopsies. The frequencies of two SNP in the TLR-9 gene and one in the TLR-5 gene was examined in 106 SLE patients (among them 37 LN patients) and in 200 matched controls by polymerase chain reaction-restriction fragment-length polymorphisms (PCR-RFLP) analysis. TLR-9 and TLR-5 expressions were assessed by reverse transcription (RT)-PCR and immunohistochemistry carried on LN renal biopsies compared to healthy renal tissue. A significant genotypic and allelic association was revealed between TLR-9-rs352140 and both SLE and LN (P < 0·05). The TLR-9 transcript level was significantly higher in LN biopsies compared to control (P < 0·05). This increase was observed histochemically in the tubulointerstitial compartment. TLR-9 was detectable in LN glomeruli patients but not in normal control glomeruli. No allelic nor genotype association was found with TLR-5-rs5744168 in SLE. but the T allele and the TT genotype were raised significantly in the LN group (P < 0·05). A significant increase in TLR-5 gene expression in LN biopsies, which contrasted with normal kidneys (P < 0·05), was confirmed by an intense and diffuse staining for TLR-5 only in LN tubules (P < 0·05). Our data show that TLR-5 and TLR-9 are susceptible genes to LN and that their expression is dysregulated in LN patients' kidneys, supporting a role of these mediators in the pathogenesis of LN.
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Affiliation(s)
- N Elloumi
- Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
| | - R Fakhfakh
- Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
| | - O Abida
- Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
| | - L Ayadi
- Anatomopathology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
| | - S Marzouk
- Internal Medicine Department, Hedi Chaker Hospital, University of Sfax, Sfax, Tunisia
| | - H Hachicha
- Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
| | - M Fourati
- Urology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
| | - Z Bahloul
- Internal Medicine Department, Hedi Chaker Hospital, University of Sfax, Sfax, Tunisia
| | - M N Mhiri
- Urology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
| | - K Kammoun
- Nephrology Department, Hedi Chaker Hospital, University of Sfax, Sfax, Tunisia
| | - H Masmoudi
- Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
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Elloumi N, Fakhfakh R, Ayadi L, Sellami K, Abida O, Ben Jmaa M, Sellami T, Kammoun K, Masmoudi H. The Increased Expression of Toll-Like Receptor 4 in Renal and Skin Lesions in Lupus Erythematosus. J Histochem Cytochem 2017; 65:389-398. [PMID: 28530841 DOI: 10.1369/0022155417709234] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022] Open
Abstract
Toll-like receptor 4 (TLR-4), a bacterial lipopolysaccharide sensor, is an innate immunity essential modulator. It is expressed on both immune and non-immune cells and may contribute to the cutaneous and renal manifestations during lupus erythematosus (LE). Our purpose is to evaluate TLR-4 expression and analyzing its role in lupus nephritis (LN) and chronic cutaneous lupus erythematosus (CLE) pathogenesis. TLR-4 immunohistochemical staining was performed on 30 LN renal biopsies compared with 11 healthy renal tissues and 30 skin biopsies from CLE patients compared with 15 normal individuals. CLE patients' biopsies showed a strong and diffuse TLR-4 expression throughout the epidermis and labeled inflammatory infiltrate and glands in the dermis whereas controls' skin expressed weakly TLR-4 only in the epidermis basal layer. LN glomeruli and tubules showed an increased and more intense TLR-4 expression compared with normal controls where TLR-4 expression was weak and rarely detected in glomeruli, diffuse and weak in tubules. A significant difference in TLR-4 expression between LN classes, both in glomeruli and tubules, was observed. These data confirm an up-regulation of TLR-4 expression in the affected tissues of CLE and LN patients and highlight the critical role of TLR-4 in the pathogenesis of cutaneous and renal disorders in LE.
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Affiliation(s)
- Nesrine Elloumi
- Immunology Department, Habib Bourguiba Hospital (NE, RF, OA, MBJ, HM), University of Sfax, Sfax, Tunisia
| | - Raouia Fakhfakh
- Immunology Department, Habib Bourguiba Hospital (NE, RF, OA, MBJ, HM), University of Sfax, Sfax, Tunisia
| | - Lobna Ayadi
- Anatomopathology Department, Habib Bourguiba Hospital (LA, TS), University of Sfax, Sfax, Tunisia
| | - Khadija Sellami
- Dermatology Department, Hedi Chaker Hospital (KS), University of Sfax, Sfax, Tunisia
| | - Olfa Abida
- Immunology Department, Habib Bourguiba Hospital (NE, RF, OA, MBJ, HM), University of Sfax, Sfax, Tunisia
| | - Mariem Ben Jmaa
- Immunology Department, Habib Bourguiba Hospital (NE, RF, OA, MBJ, HM), University of Sfax, Sfax, Tunisia
| | - Tahya Sellami
- Anatomopathology Department, Habib Bourguiba Hospital (LA, TS), University of Sfax, Sfax, Tunisia
| | - Khawla Kammoun
- Nephrology Department, Hedi Chaker Hospital (KK), University of Sfax, Sfax, Tunisia
| | - Hatem Masmoudi
- Immunology Department, Habib Bourguiba Hospital (NE, RF, OA, MBJ, HM), University of Sfax, Sfax, Tunisia
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Ben Jmaa M, Abida O, Bahloul E, Toumi A, Khlif S, Fakhfakh R, Elloumi N, Sellami K, Masmoudi A, Turki H, Masmoudi H. Role of FOXP3 gene polymorphism in the susceptibility to Tunisian endemic Pemphigus Foliaceus. Immunol Lett 2017; 184:105-111. [PMID: 28216259 DOI: 10.1016/j.imlet.2017.02.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [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: 12/16/2016] [Revised: 01/25/2017] [Accepted: 02/10/2017] [Indexed: 12/07/2022]
Abstract
OBJECTIVE Forkhead box P3 (FOXP3) is an essential and crucial transcription factor of regulatory T-cells. Genetic polymorphisms in the promoter region of FOXP3 gene may alter the gene expression level and, therefore, contribute to several autoimmune diseases susceptibility. We aimed to investigate the possible role of genetic variants of four SNPs (rs3761547, rs3761548, rs3761549 and rs2294021) and a (GT)n microsatellite located in FOXP3 gene in the susceptibility to Tunisian Pemphigus Foliaceus (PF). METHOD A case-control study was conducted on 98 patients with different clinical features of PF and 182 matched healthy controls using PCR-RFLP method. RESULTS According to the epidemio-demographic features of the disease, patients were classified into two groups: an endemic group (n=33, mean age=31 [18-48]) versus a sporadic one (n=65, mean age=36 [19-84]). In the whole population, rs3761548, rs3761549 and rs2294021 were associated with the susceptibility to PF. Interestingly, significant differences of gene distributions between the two sub-groups of patients were observed. In the endemic group, all associations observed in the whole population were maintained and reinforced and a new association was revealed with rs3761547; while in the sporadic group, only the association with rs3761549 was conserved. Further, the haplotype analysis showed that the G-A-C-15-C risk haplotype was significantly much more expressed in PF patients and specially in the endemic group. The phenotype-genotype correlation revealed that the rs3761548>AA genotype was significantly correlated with the severity of the disease including Nickolsky sign, generalized form of the disease and the earliest age onset. CONCLUSION These results underline the particular genetic background of the Tunisian endemic PF and suggest the implication of FOXP3 gene in the susceptibility and the clinical course of the disease.
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Affiliation(s)
- Mariem Ben Jmaa
- Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia.
| | - Olfa Abida
- Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia.
| | - Emna Bahloul
- Dermatology Department, Hedi Chaker Hospital, University of Sfax, Sfax, Tunisia.
| | - Amina Toumi
- Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia; Emirates College of Technology, Abu Dhabi, United Arab Emirates.
| | - Sana Khlif
- Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia.
| | - Raouia Fakhfakh
- Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia.
| | - Nesrine Elloumi
- Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia.
| | - Khadija Sellami
- Dermatology Department, Hedi Chaker Hospital, University of Sfax, Sfax, Tunisia.
| | - Abderrahmen Masmoudi
- Dermatology Department, Hedi Chaker Hospital, University of Sfax, Sfax, Tunisia.
| | - Hamida Turki
- Dermatology Department, Hedi Chaker Hospital, University of Sfax, Sfax, Tunisia.
| | - Hatem Masmoudi
- Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia.
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Jerbi A, Masmoudi A, Hachicha H, Bahloul E, Feki S, Abida O, Amouri M, Bouzid A, Masmoudi H, Turki H. Pemphigus herpétiforme du sud tunisien : particularités épidémio-cliniques et immunologiques. Ann Dermatol Venereol 2016. [DOI: 10.1016/j.annder.2016.09.304] [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: 11/25/2022]
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25
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Jerbi A, Masmoudi A, Hachicha H, Bahloul E, Feki S, Abida O, Mseddi M, Bouzid A, Masmoudi H, Turki H. Intérêt des anticorps anti-desmogléine 1 et 3 dans le suivi du pemphigus dans le Sud tunisien. Ann Dermatol Venereol 2016. [DOI: 10.1016/j.annder.2016.09.305] [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: 11/29/2022]
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26
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Jerbi A, Masmoudi A, Hachicha H, Bahloul E, Feki S, Abida O, Mseddi M, Bouzid A, Masmoudi H, Turki H. Profils atypiques des anticorps anti-desmogléine 1 et 3 chez les patients atteints de pemphigus vulgaire. Ann Dermatol Venereol 2016. [DOI: 10.1016/j.annder.2016.09.303] [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: 10/20/2022]
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27
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Guesmi R, Elloumi N, Kammoun K, Abida O, Boudawara T, Jamil H, Hatem M, Ayadi L, Bahloul Z, Marzouk S. Un cas rare de polymorphisme du Toll-Like Receptor 5 associé à une néphropathie lupique. Nephrol Ther 2016. [DOI: 10.1016/j.nephro.2016.07.150] [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: 11/24/2022]
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28
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Ferjeni Z, Bouzid D, Fourati H, Stayoussef M, Abida O, Kammoun T, Hachicha M, Penha-Gonçalves C, Masmoudi H. Association of TCR/CD3, PTPN22, CD28 and ZAP70 gene polymorphisms with type 1 diabetes risk in Tunisian population: family based association study. Immunol Lett 2014; 163:1-7. [PMID: 25448703 DOI: 10.1016/j.imlet.2014.11.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [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: 09/09/2014] [Revised: 10/30/2014] [Accepted: 11/10/2014] [Indexed: 11/28/2022]
Abstract
Type 1 diabetes (T1D) is caused by an immune-mediated destruction of the insulin-producing β-cells. Several studies support the involvement of T cell activation molecules in the pathogenesis of T1D. In order to underline the role of the genes involved in this activation pathway, we investigated, using the Sequenom MassARRAY platform, 45 single-nucleotide polymorphisms (SNPs) belonging to TCR/CD3, CD28, ZAP70, and PTPN22 genes in 59 T1D Tunisian families. In the current study, we identified an association with rs706 (Z score=2.782; p=0.005) of TCRβ gene. We also demonstrated that rs10918706 in the intron of the CD3z gene was associated with increased risk of T1D (Z score 2.137; p=0.032). In the same region, rs2949655 (Z score=2.101; p=0.035) and rs1214611 (Z score=4.036; p=0.00005) showed a genotype association with the risk of T1D. When haplotypes were constructed, GAA haplotype displayed significant association with T1D (Z score=2.135; p=0.032), while GGA haplotype (Z score=-1.988; p=0.046) was negatively associated with the disease. We also identified an association with rs3181096 (Z score=2.177; p=0.029), rs17695937 (Z score =2.111; p=0.034) and rs2488457 (Z score=2.219; p=0.026), respectively of CD28, ZAP70 and PTPN22 genes. In addition, our results suggest a significant effect on T1D susceptibility for AC (Z score=2.30; p=0.02) and CTGGC (Z score=2.309, p=0.02) haplotypes of ZAP70 and PTPN22 genes, respectively. While, the GTCT (Z score=-2.114, p=0.034) and CTAGG (Z score=-2.121, p=0.033) haplotypes of CD28 and PTPN22 genes, may confer protection against T1D. These findings confirm the role of PTPN22 and CD28 involved in the T cell activation pathway in the development of T1D in Tunisian families. Interestingly, ZAP70 and TCRβ/CD3z seem to contribute to the susceptibility to the disease in our population. However, this finding has to be confirmed in further studies.
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Affiliation(s)
- Zouidi Ferjeni
- Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia.
| | - D Bouzid
- Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
| | - H Fourati
- Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
| | - M Stayoussef
- Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
| | - O Abida
- Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
| | - T Kammoun
- Pediatric Department, Hedi Chaker Hospital, University of Sfax, Sfax, Tunisia
| | - M Hachicha
- Pediatric Department, Hedi Chaker Hospital, University of Sfax, Sfax, Tunisia
| | | | - H Masmoudi
- Immunology Department, Habib Bourguiba Hospital, University of Sfax, Sfax, Tunisia
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Bouzid D, Fourati H, Amouri A, Marques I, Abida O, Tahri N, Penha-Gonçalves C, Masmoudi H. Autoimmune diseases association study with the KIAA1109-IL2-IL21 region in a Tunisian population. Mol Biol Rep 2014; 41:7133-9. [PMID: 25037274 DOI: 10.1007/s11033-014-3596-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2013] [Accepted: 07/07/2014] [Indexed: 01/09/2023]
Abstract
Autoimmune diseases (ADs) share several genetic factors resulting in similarity of disease mechanisms. For instance polymorphisms from the KIAA1109-interleukin 2 (IL2)-IL21 block in the 4q27 chromosome, has been associated with a number of autoimmune phenotypes. Here we performed a haplotype-based analysis of this AD related region in Tunisian patients. Ten single nucleotide polymorphisms (rs6534347, rs11575812, rs2069778, rs2069763, rs2069762, rs6852535, rs12642902, rs6822844, rs2221903, rs17005931) of the block were investigated in a cohort of 93 systemic lupus erythematosus (SLE), 68 ulcerative colitis (UC), 39 Crohn's disease (CD) patients and 162 healthy control subjects of Tunisian origin. In SLE population, haplotypes AGCAGGGTC, AGAAGAGTC, AGAAGGGTC and AGCCGAGTC provided significant evidence of association with SLE risk (p = 0.013, 0.028, 0.018 and 0.048, respectively). In the UC population, haplotype AGCCGGGTC provided a susceptibility effect for UC (p = 0.025). In the CD population, haplotype CAGGCC showed a protective effect against the development of CD (p = 0.038). Haplotype AAGGTT provided significant evidence to be associated with CD risk (p = 0.007). Our results support the existence of the associations found in the KIAA1109/IL2/IL21 gene region with ADs, thus confirms that the 4q27 locus may contribute to the genetic susceptibility of ADs in the Tunisian population.
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Affiliation(s)
- Dorra Bouzid
- Immunology Department, Medicine School and Habib Bourguiba Hospital, Université de Sfax, 3029, Sfax, Tunisia,
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Bouzid D, Amouri A, Fourati H, Marques I, Abida O, Tahri N, Goncalves CP, Masmoudi H. Polymorphisms in the IL2RA and IL2RB genes in inflammatory bowel disease risk. Genet Test Mol Biomarkers 2013; 17:833-9. [PMID: 23972291 DOI: 10.1089/gtmb.2013.0291] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Associations with different autoimmune diseases of polymorphisms in genes encoding the IL2RA and IL2RB subunits (located in 10p15 and 22q13, respectively), were identified through genome-wide studies. Polymorphisms in these two genes were studied in 107 inflammatory bowel disease (IBD) patients (39 Crohn's disease [CD] and 68 ulcerative colitis [UC]) and in 162 ethnically healthy controls from Tunisia (Sfax). Two of the 15 IL2RA single-nucleotide polymorphisms (SNPs) genotyped (rs4749924 and rs706778) were significantly associated with UC (pcorr=0.018 and 0.048, respectively), but no evidence of association with CD was observed. The IL2RA GTCT haplotype was also more frequent in UC patients compared to controls (2.6% vs. 0%; p=0.002). One of the 6 IL2RB SNPs genotyped (rs743776) was significantly associated with CD (pcorr= 0.039), but no evidence of association with UC was observed. No significant association between IL2RB haplotypes was observed among investigated groups. Our study identified markers in the IL2RA and IL2RB genes that are significantly associated with UC and CD, respectively. Our results supporting IL2RA and IL2RB as promising candidate genes for IBD and suggesting a potential role of IL2R in the pathogenesis of IBD, likely involves regulatory T cells.
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Affiliation(s)
- Dorra Bouzid
- 1 Immunology Department, Medicine School and Habib Bourguiba Hospital , Sfax, Tunisia
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31
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Toumi A, Saleh MA, Yamagami J, Abida O, Kallel M, Masmoudi A, Makni S, Turki H, Hachiya T, Kuroda K, Stanley JR, Masmoudi H, Amagai M. Autoimmune reactivity against precursor form of desmoglein 1 in healthy Tunisians in the area of endemic pemphigus foliaceus. J Dermatol Sci 2013; 70:19-25. [PMID: 23489520 DOI: 10.1016/j.jdermsci.2013.02.002] [Citation(s) in RCA: 6] [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] [Received: 10/09/2012] [Revised: 01/23/2013] [Accepted: 02/05/2013] [Indexed: 10/27/2022]
Abstract
BACKGROUND Desmoglein 1 (Dsg1), the pemphigus foliaceus (PF) antigen, is produced as a precursor (preDsg1) and is transported to the cell surface as the mature form (matDsg1). Recent studies show that B cells from North American individuals without pemphigus can potentially produce anti-preDsg1 IgG antibodies, but ELISA screening of large numbers of normal people in North America and Japan hardly ever shows circulating antibodies against preDsg1 or matDsg1. In contrast, in Tunisia, where PF is endemic, anti-Dsg1 IgGs are frequently detected in healthy individuals. OBJECTIVE To characterize these anti-Dsg1 antibodies from normal individuals in Tunisia. METHODS Sera from 16 healthy individuals and 9 PF patients in the endemic PF area in Tunisia, and sera from Japanese non-endemic PF patients were analyzed by immunoprecipitation-immunoblotting using recombinant proteins of preDsg1, matDsg1, and domain-swapped Dsg1/Dsg2 molecules. RESULTS Sera from normal Tunisian individuals reacted to preDsg1 alone (8/16) or more strongly to preDsg1 than to matDsg1 (7/16), while those from all Tunisian PF patients and Japanese non-endemic PF patients reacted similarly to preDsg1 and matDsg1, or preferentially to matDsg1. The epitopes recognized by anti-Dsg1 IgGs from normal Tunisian individuals were more frequently found in the C-terminal extracellular domains (EC3 to EC5), while those in Tunisian endemic PF patients were more widely distributed throughout the extracellular domains, suggesting IgGs against EC1 and EC2 developed during disease progression. CONCLUSIONS These findings indicate that IgG autoantibodies against Dsg1 are mostly raised against preDsg1 and/or C-terminal domains of Dsg1 in healthy Tunisians in the endemic area of PF.
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Affiliation(s)
- Amina Toumi
- Department of Immunology, Habib Bourguiba Hospital, Sfax, Tunisia
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Bouzid D, Fourati H, Amouri A, Marques I, Abida O, Haddouk S, Ben Ayed M, Tahri N, Penha-Gonçalves C, Masmoudi H. Association of ZAP70 and PTPN6, but Not BANK1 or CLEC2D, with inflammatory bowel disease in the Tunisian population. Genet Test Mol Biomarkers 2013; 17:321-6. [PMID: 23406209 DOI: 10.1089/gtmb.2012.0372] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Inflammatory bowel diseases (IBDs), consisting of ulcerative colitis (UC) and Crohn's disease (CD), are complex disorders with multiple genes contributing to disease pathogenesis. We aimed to identify the associations of genetic variations in the ZAP70, PTPN6, BANK1, and CLEC2D genes encoding for intracellular signaling molecules with IBDs. One hundred seven patients (39 CD and 68 UC) with IBD and 162 healthy control subjects from the Southern Tunisia were recruited. We genotyped 4 single-nucleotide polymorphisms (SNPs) in ZAP70 (rs1020396, rs11686881, rs13420683, and rs17695937), 2 SNPs in PTPN6 (rs7310161 and rs759052), 3 SNPs in BANK1 (rs10516487, rs17266594, and rs3733197), and 1 SNP in CLEC2D (rs3764021). ZAP70 displayed a strong genetic association with CD for rs13420683 [allele C, p=0.003, P(corr)=0.006, odds ratio (OR)=2.25 (1.32; 3.85); genotype CC, p=0.016, P(corr)=0.048, OR=2.57 (1.22; 5.41)]. However, in UC, a weak association with PTPN6 was observed [TT (p=0.01; P(corr)=0.03; OR=2.11 (1.18; 3.76)]. No significant association in the BANK1 and CLEC2D genes was observed. These results suggest the involvement of the ZAP70 and PTPN6 genes in the genetic component conferring a general susceptibility to CD and UC, respectively. This work provides motivation for studies aiming to replicate these findings in larger populations.
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Affiliation(s)
- Dorra Bouzid
- Immunology Department, Medicine School and Habib Bourguiba Hospital, Sfax, Tunisia.
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Toumi A, Abida O, Ben Ayed M, Masmoudi A, Turki H, Masmoudi H. Cytokine gene polymorphisms in Tunisian endemic pemphigus foliaceus: a possible role of il-4 variants. Hum Immunol 2013; 74:658-65. [PMID: 23376457 DOI: 10.1016/j.humimm.2013.01.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2012] [Revised: 12/19/2012] [Accepted: 01/14/2013] [Indexed: 01/17/2023]
Abstract
Polymorphism in the genes of TH2 cytokines and/or theirs receptors can influence serum cytokine levels in and the switch to the pathologic IgG4 auto-antibodies. In order to underline the role of these genes in the aethiopathogenesis of Pemphigus Foliaceus, we conduct a familial and a case control studies including 80 Tunisian patients, 147 related subjects and 160 matched healthy controls. We investigated, by PCR-RFLP technique, seven nucleotide polymorphisms: rs2243250 in promoter region of IL4 gene, rs47877948, rs3024530 and rs30246223 in the IL4R gene, rs1881457and rs205412 SNPs in IL13 gene and rs535036 in IL13RA2 gene. After Bonferroni adjustment, T allele and the TT genotype of IL4-590 were significantly increased in the PF patients group compared to healthy controls. This association was confirmed by the family study. Interestingly, the serum IL-4 levels were significantly increased in patients with the TT genotype compared to CT or CC genotypes. Interestingly, the IL4/IL13:T-A-C haplotype exhibited a significant effect on PF susceptibility. In addition, a significant gene-gene interaction between the IL4/IL4R (TACA) significantly increases in PF patients as compared to controls. These findings assess the role of the IL4/IL4R axis in the aethiopathogenesis of Tunisian endemic PF by the induction of a high transcriptional activity which could enhance the T-cell balance and inducing immunoglobulin isotype switching.
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Affiliation(s)
- Amina Toumi
- Immunology Department, Habib Bourguiba University Hospital, Sfax, Tunisia.
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Dorra B, Hajer F, Ali A, Isabel M, Abida O, Nabil T, Carlos PG, Hatem M. Autoimmune diseases association study with the KIAA1109-IL2-IL21region in a Tunisian population. Front Immunol 2013. [DOI: 10.3389/conf.fimmu.2013.02.00529] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Abida O, Ben Mansour R, Gargouri B, Ben Ayed M, Masmoudi A, Turki H, Masmoudi H, Lassoued S. Catalase and lipid peroxidation values in serum of Tunisian patients with pemphigus vulgaris and foliaceus. Biol Trace Elem Res 2012; 150:74-80. [PMID: 22907559 DOI: 10.1007/s12011-012-9497-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2012] [Accepted: 08/10/2012] [Indexed: 11/26/2022]
Abstract
Pemphigus is an autoimmune disorder resulting from the interaction between autoantibodies and desmoglein. Oxidative stress seems to be responsible for the onset/aggravation of many human diseases. Actually, it is considered as one of the several factors for the etiopathogenesis of pemphigus. The present study aims to evaluate the oxidative state in the sera of pemphigus vulgaris and pemphigus foliaceus patients by assessing lipid peroxidation, proteins oxidation, and antioxidant enzyme activity. This study included 36 pemphigus vulgaris and 42 pemphigus foliaceus patients as well as a group of controls consisting of 78 healthy volunteers. Malondialdehyde levels (p < 0.001) and catalase activity (p < 0.001) are higher in both groups of patients than in the control group. The two groups of patients showed a nonsignificant decrease in the thiol groups compared with the healthy one. A nonsignificant difference was shown between pemphigus vulgaris and pemphigus foliaceus patients, except for the catalase which shows an increase in the pemphigus vulgaris group. We have also found significant correlations between serum oxidative stress marker levels and serum anti-desmoglein antibody levels in the two pemphigus groups. These findings underline the implication of oxidative stress in the physiopathology of pemphigus by the increase in the autoantibodies' reactivity.
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Affiliation(s)
- Olfa Abida
- Unité de recherche d' auto-immunité et immunogénétique, hôpital Habib Bourguiba, Sfax, Tunisia.
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Fourati H, Bouzid D, Abida O, Kharrat N, Mnif F, Haddouk S, Fesel C, Costa J, Ayed MB, Abid M, Rebai A, Penha-Gonçalves C, Masmoudi H. Non-HLA autoimmunity genetic factors contributing to Autoimmune Polyglandular Syndrome type II in Tunisian patients. Hum Immunol 2012; 73:740-6. [DOI: 10.1016/j.humimm.2012.04.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2012] [Revised: 04/01/2012] [Accepted: 04/16/2012] [Indexed: 10/28/2022]
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Abida O, Gargouri B, Ben Mansour R, Mseddi-Djemal M, Masmoudi A, Ben Ayed M, Abdelmoula M, Turki H, Lassoued S, Masmoudi H. Biomarkers of oxidative stress in epidermis of Tunisian pemphigus foliaceus patients. J Eur Acad Dermatol Venereol 2012; 27:e271-5. [PMID: 22738420 DOI: 10.1111/j.1468-3083.2012.04626.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND Reactive oxygen species play a key role in the development of many dermatological disorders. OBJECTIVE The purpose of this study is to examine the lipid peroxidation, protein oxidation and antioxidative profile in Tunisian pemphigus foliaceus (PF) patients. METHODS Malondialdehyde (MDA), conjugated dienes (CD), protein thiol levels, catalase (CAT) and superoxide dismutase (SOD) activities were evaluated in skin biopsies of 13 patients compared to biopsies of 7 healthy controls. RESULTS Oxidative stress was confirmed in these three types of patient biopsies as compared to controls. Thus, MDA, CD levels and catalase CAT and SOD activities were significantly increased in lesional, perilesional and normal biopsies of PF patients than in those of control subjects. Protein oxidative was confirmed by lower levels of protein thiols in lesional, perilesional and normal biopsies than in control's biopsies. Otherwise, in patients, a significant rise of these biomarkers was observed in lesional and perilesional biopsies compared with normal biopsies. CONCLUSION This study shows that oxidative stress could be involved in the pathogenesis of PF by the spread of skin lesions and/or by the increase in auto-antibodies' reactivity.
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Affiliation(s)
- O Abida
- Laboratoire d'Immunologie, hôpital Habib Bourguiba, Université de Sfax, Tunisie Laboratoire d'analyse, valorisation et sécurité des aliments, groupe de recherche, Biotechnologie et pathologies, Institut Supérieur de Biotechnologie de Sfax, Université de Sfax, Tunisie Service de Dermatologie, hôpital Hédi Chaker, Sfax, Tunisie Service de chirugie Maxillo-fasciale, hôpital Habib Bourguiba, Sfax, Tunisie
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Bouzid D, Fourati H, Amouri A, Marques I, Abida O, Haddouk S, Ayed MB, Tahri N, Penha-Gonçalves C, Masmoudi H. The CREM gene is involved in genetic predisposition to inflammatory bowel disease in the Tunisian population. Hum Immunol 2011; 72:1204-9. [DOI: 10.1016/j.humimm.2011.10.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2011] [Revised: 09/02/2011] [Accepted: 10/03/2011] [Indexed: 01/09/2023]
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Mejri K, Abida O, Kallel-Sellami M, Haddouk S, Laadhar L, Zarraa IR, Ben Ayed M, Zitouni M, Mokni M, Lahmar H, Fezaa B, Turki H, Tron F, Masmoudi H, Makni S. Spectrum of autoantibodies other than anti-desmoglein in pemphigus patients. J Eur Acad Dermatol Venereol 2010; 25:774-81. [PMID: 21029209 DOI: 10.1111/j.1468-3083.2010.03859.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND Pemphigus is a life-threatening autoimmune blistering disease mediated by autoantibodies against adhesion molecule of the skin. Its concurrence with systemic and organ-specific autoimmune disease was described in case reports. OBJECTIVES To evaluate the presence of a broad spectrum of organ-specific and non-organ-specific autoantibodies other than anti-desmoglein antibodies in pemphigus patients. PATIENTS AND METHODS Serum samples were obtained from 105 pemphigus foliaceus (PF) patients, 51 pemphigus vulgaris (PV) patients and 50 controls. Both indirect immunofluorescence assay and ELISA were used to assess the presence of autoantibodies related to connective tissue diseases, autoimmune hepatitis, vasculitis, rheumatoid arthritis, coeliac disease, diabetes and thyroiditis. RESULTS Significant difference was observed between the three groups for anti-thyroglobulin antibodies in the pemphigus foliaceus group (18% vs. 4%, P=0.03). A significantly higher occurrence of IgM anti-cardiolipin (P=0.03), IgG anti-reticulin (P=0.01) and IgG anti-gliadin antibodies (P=0.008) were observed in the PV group. Cases with more than four autoantibodies were frequently positives for both anti-desmoglein 1 and anti-desmoglein 3. CONCLUSION Autoantibodies other than anti-desmoglein antibodies are not rare in pemphigus patients. Clinical and serological follow-up of pemphigus patients with positive autoantibodies are needed to clarify their impact in disease evolution.
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Affiliation(s)
- K Mejri
- Immunology Department, La Rabta Hospital, Sfax, Tunisia
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Abida O, Masmoudi A, Rebaï A, Ben Ayed M, Mahfoudh N, Kallel-Sellami M, Makni S, Joly P, Gilbert D, Makni H, Tron F, Masmoudi H, Turki H. The familial feature of Tunisian endemic pemphigus foliaceus. Br J Dermatol 2009; 161:951-3. [DOI: 10.1111/j.1365-2133.2009.09386.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Abida O, Kallel-Sellami M, Joly P, Ben Ayed M, Zitouni M, Masmoudi A, Mokni M, Fezzaa B, Ben Osman A, Kammoun MR, Gilbert D, Turki H, Tron F, Masmoudi H, Makni S. Anti-desmoglein 1 antibodies in healthy related and unrelated subjects and patients with pemphigus foliaceus in endemic and non-endemic areas from Tunisia. J Eur Acad Dermatol Venereol 2009; 23:1073-8. [DOI: 10.1111/j.1468-3083.2009.03265.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [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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Abida O, Zitouni M, Kallel-Sellami M, Mahfoudh N, Kammoun A, Ben Ayed M, Masmoudi A, Mokni M, Fezzaa B, Ben Osman A, Kammoun M, Turki H, Makni H, Gilbert D, Joly P, Tron F, Makni S, Masmoudi H. Tunisian endemic pemphigus foliaceus is associated with the HLA-DR3 gene: anti-desmoglein 1 antibody-positive healthy subjects bear protective alleles. Br J Dermatol 2009; 161:522-7. [DOI: 10.1111/j.1365-2133.2009.09207.x] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [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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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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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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Masmoudi A, Cheikhrouhou H, Frigui F, Abida O, Ben Ayed M, Lehyani N, Amouri M, Masmoudi H, Makni H, Zahaf A, Turki H. Dermatoses bulleuses auto-immunes multiples dans une même famille. Ann Dermatol Venereol 2007; 134:572-3. [PMID: 17657188 DOI: 10.1016/s0151-9638(07)89273-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Kallel Sellami M, Zitouni M, Tombari W, Ben Ayed M, Abida O, Laadhar L, Mokni M, Fezza B, Turki H, Mokhtar I, Ben Osman A, Kamoun Mohamed R, Joly P, Tron F, Gilbert D, Masmoudi H, Makni S. Anti-desmoglein-1 antibodies are prevalent in Tunisian patients with hydatidosis and leishmaniasis. Br J Dermatol 2007; 156:591-3. [PMID: 17300263 DOI: 10.1111/j.1365-2133.2006.07687.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Masmoudi A, Hadj Taieb H, Ben Ayed M, Abida O, Makni H, Turki H, Masmoudi H, Zahaf A. Pemphigus érythémateux tunisien associé à un psoriasis chez deux sœurs. Ann Dermatol Venereol 2006; 133:184-5. [PMID: 16508610 DOI: 10.1016/s0151-9638(06)77553-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Abida O, Emilio C, Quici N, Gettar R, Litter M, Mailhot G, Bolte M. Degradation of 4-chlorophenol mediated by Fe(III)-NTA in homogeneous and heterogeneous systems. Water Sci Technol 2004; 49:123-128. [PMID: 15077959] [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] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
In this work, the comparison of 4-chlorophenol (4-CP) degradation by two different AOT processes has been performed: a) a homogeneous system with Fe(III)-NTA (1:1 complex), b) a TiO2/Fe(III)-NTA heterogeneous system. In both cases, NTA appears to play a positive role in the photochemical reaction. In the homogeneous system, the iron salt is the only absorbing species and is proved to be able to photoinduce 4-CP degradation ([4-CP] = 0.1-0.2 mM, [FeNTA] = 0.3-0.9 mM, pH 4, lambda = 365 nm). The progress of the reaction was positively affected by the FeNTA concentration, and the reaction kept going even after the total disappearance of FeNTA. However, 4-CP complete degradation requires the presence of oxygen, otherwise the reaction stops. In the heterogeneous system ([4-CP] = 2.0 mM, [FeNTA] = 1.0-2.0 mM, [TiO2] = 0.1 and 1.0 g L(-1), pH 3, lambda = 300-400 nm), an important effect of the complex on the degradation extent and on the initial reaction rate can be seen, which overcomes the effect of non-complexed Fe(III). This behaviour is more important at the highest TiO2 concentration.
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Affiliation(s)
- O Abida
- Laboratoire de Photochemie Moléculaire et Macromoléculaire, UMR 6505 CNRS-Université Blaise Pascal, 63177 Aubiere Cedex, France
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