101
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Lavoie TN, Carcamo WC, Wanchoo A, Sharma A, Gulec A, Berg KM, Stewart CM, Nguyen CQ. IL-22 regulation of functional gene expression in salivary gland cells. GENOMICS DATA 2015; 7:178-84. [PMID: 26981401 PMCID: PMC4778602 DOI: 10.1016/j.gdata.2015.11.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Revised: 11/10/2015] [Accepted: 11/20/2015] [Indexed: 12/12/2022]
Abstract
TH17 cells and their associated signature cytokines, IL-17 and IL-22, are highly elevated in primary Sjögren's syndrome (pSjS). The levels of IL-22 present in sera showed significant correlations with many disease parameters, specifically hyposalivation, anti-SSB, anti-SSA/SSB, hypergammaglobulinemia and rheumatoid factor. The present study aims to examine the biological function of IL-22 on human salivary glands. To accomplish the goal, microarray analysis using the HumanHT-12 v4 Expression BeadChip was utilized to determine the biological function of IL-22. Differential expression analyses were conducted using the LIMMA package from the Bioconductor project. MTT assay, flow cytometry and Western blotting were used to identify the function of IL-22 on human salivary gland cells. Results indicate an extensive effect of IL-22 on many major molecular functions including activation of antimicrobial genes and downregulation of immune-associated pathways. Functional studies performed in-vitro using human salivary gland cells treated with IL-22 indicated a direct effect of IL-22 on cell cycling, specifically reducing cellular proliferation at the G2-M phase by activation of STAT3. These results suggest the important role of IL-22 in the salivary gland function. The present study suggests that IL-22 might be involved in regulating inflammation and controlling the cell proliferation in SjS.
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Affiliation(s)
- Tegan N Lavoie
- Department of Infectious Diseases and Pathology, University of Florida College of Veterinary Medicine, 2015 SW 16th Ave, Gainesville, FL 32611, USA
| | - Wendy C Carcamo
- Department of Infectious Diseases and Pathology, University of Florida College of Veterinary Medicine, 2015 SW 16th Ave, Gainesville, FL 32611, USA
| | - Arun Wanchoo
- Department of Infectious Diseases and Pathology, University of Florida College of Veterinary Medicine, 2015 SW 16th Ave, Gainesville, FL 32611, USA
| | - Ashok Sharma
- Center for Biotechnology and Genomic Medicine, Georgia Health Sciences University, Augusta, GA 30912, USA
| | - Afife Gulec
- Department of Infectious Diseases and Pathology, University of Florida College of Veterinary Medicine, 2015 SW 16th Ave, Gainesville, FL 32611, USA
| | - Kathleen M Berg
- Department of Oral and Maxillofacial Diagnostic Sciences, University of Florida College of Dentistry, 1600 SW Archer Rd, Gainesville, FL 32610, USA; Center for Orphan Autoimmune Disorders, University of Florida College of Dentistry, 1600 SW Archer Rd, Gainesville, FL 32610, USA
| | - Carol M Stewart
- Department of Oral and Maxillofacial Diagnostic Sciences, University of Florida College of Dentistry, 1600 SW Archer Rd, Gainesville, FL 32610, USA; Center for Orphan Autoimmune Disorders, University of Florida College of Dentistry, 1600 SW Archer Rd, Gainesville, FL 32610, USA
| | - Cuong Q Nguyen
- Department of Infectious Diseases and Pathology, University of Florida College of Veterinary Medicine, 2015 SW 16th Ave, Gainesville, FL 32611, USA; Center for Orphan Autoimmune Disorders, University of Florida College of Dentistry, 1600 SW Archer Rd, Gainesville, FL 32610, USA
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102
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Voigt A, Esfandiary L, Nguyen CQ. Sexual dimorphism in an animal model of Sjögren's syndrome: a potential role for Th17 cells. Biol Open 2015; 4:1410-9. [PMID: 26453623 PMCID: PMC4728356 DOI: 10.1242/bio.013771] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Sjögren's syndrome is a complex autoimmune disease with an array of diverse immunological, genetic and environmental etiologies, making identification of the precise autoimmune mechanism difficult to define. One of the most distinctive aspects of Sjögren's syndrome is the high sexual dimorphism with women affected 10-20 times more than men. It is nearly impossible to study the sexual dimorphic development of Sjögren's syndrome in human patients; therefore it is pertinent to develop an appropriate animal model which resembles human disease. The data indicated that female C57BL/6.NOD-Aec1Aec2 mice developed an earlier onset of sialadenitis with a higher composition of CD3+ T cells and a 10-fold increase in glandular infiltration of Th17 cells at the onset of clinical disease compared to male mice. Inflammatory Th17 cells of female mice exhibited a stronger proliferation in response to disease-specific antigen than their male counterpart. At the clinical disease stage, altered autoantibody patterns can be detected in females whereas they are seldom observed in male C57BL/6.NOD-Aec1Aec2 mice. Interestingly, male C57BL/6.NOD-Aec1Aec2 mice developed an earlier loss of secretory function, despite the fact that female C57BL/6.NOD-Aec1Aec2 mice exhibited a more rapid secretory loss. This data indicates the strong sexual dimorphism in the SjS-susceptible C57BL/6.NOD-Aec1Aec2 animal model, making it an appropriate animal model to examine human disease. Summary: Sjogren's syndrome (SjS) is the one of the most common sexual dimorphic autoimmune diseases. This study demonstrates that female C57BL/6.NOD-Aec1Aec2 mice develop earlier onset and more severe symptoms of SjS than male counterparts. Therefore, the C57BL/6.NOD-Aec1Aec2 mouse model could be an appropriate model to study sexual dimorphism in SjS.
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Affiliation(s)
- Alexandria Voigt
- Department of Infectious Diseases and Pathology, College of Veterinary Medicine, University of Florida, 2015 SW 16th Ave, Gainesville, FL 32608, USA
| | - Lida Esfandiary
- Department of Infectious Diseases and Pathology, College of Veterinary Medicine, University of Florida, 2015 SW 16th Ave, Gainesville, FL 32608, USA
| | - Cuong Q Nguyen
- Department of Infectious Diseases and Pathology, College of Veterinary Medicine, University of Florida, 2015 SW 16th Ave, Gainesville, FL 32608, USA Center for Orphan Autoimmune Disorders, University of Florida College of Dentistry, 1600 SW Archer Rd, Gainesville, FL 32608, USA
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103
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You IC, Bian F, Volpe EA, de Paiva CS, Pflugfelder SC. Age-Related Conjunctival Disease in the C57BL/6.NOD-Aec1Aec2 Mouse Model of Sjögren Syndrome Develops Independent of Lacrimal Dysfunction. Invest Ophthalmol Vis Sci 2015; 56:2224-33. [PMID: 25758816 DOI: 10.1167/iovs.14-15668] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
PURPOSE To investigate parameters of ocular surface disease in C57BL/6.NOD-Aec1Aec2 (Aec) mice with aging and their correlation with development of Sjögren syndrome (SS)-like lacrimal gland (LG) disease. METHODS Aec and C57BL/6 wild-type (B6) female mice were evaluated at 4, 12, and 20 weeks of age. Whole LG and eyes and adnexa were excised for histology and gene expression analysis and evaluated by flow cytometry and immunohistochemistry. Tear volume and goblet cell density was measured. Quantitative PCR evaluated T-cell-related cytokine expression in cornea and conjunctiva. RESULTS Both strains showed age-related conjunctival goblet cell loss that was more pronounced in the Aec strain and significantly greater than in B6 mice at 12 weeks. This was accompanied by CD4+ T-cell infiltration of the conjunctiva that was greater in Aec strain at 20 weeks. Aec mice had higher levels of IL-17A, IL-17R, IL-1α, IL-1β, and TNF-α in the conjunctiva, and they significantly increase with aging. Aec mice had greater lymphocytic infiltration of the LG and conjunctiva at 20 weeks that consisted of a mixture of CD4+ and CD8+ cells. Flow cytometry showed a significant increase in CD4+ T cells in Aec LG compared to B6 mice. Tear volume was significantly increased in both strains at 20 weeks. CONCLUSIONS Aec mice developed greater conjunctival goblet cell loss associated with lymphocytic infiltration of the LG and conjunctiva with aging. Increased expression of certain T helper or inflammatory cytokines in these tissues was observed in Aec mice. The conjunctival disease appeared to be due to inflammation and not a decrease in tear volume.
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Affiliation(s)
- In-Cheon You
- Department of Ophthalmology, Research Institute of Clinical Medicine of Chonbuk National University-Biomedical Research Institute, Chonbuk National University Hospital, Jeonju, Jeonbuk, Korea 2Ocular Surface Center, Department of Ophthalmology, Cullen Eye
| | - Fang Bian
- Ocular Surface Center, Department of Ophthalmology, Cullen Eye Institute, Baylor College of Medicine, Houston, Texas, United States
| | - Eugene A Volpe
- Ocular Surface Center, Department of Ophthalmology, Cullen Eye Institute, Baylor College of Medicine, Houston, Texas, United States
| | - Cintia S de Paiva
- Ocular Surface Center, Department of Ophthalmology, Cullen Eye Institute, Baylor College of Medicine, Houston, Texas, United States
| | - Stephen C Pflugfelder
- Ocular Surface Center, Department of Ophthalmology, Cullen Eye Institute, Baylor College of Medicine, Houston, Texas, United States
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104
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Wu X, Chen H, Xu H. The genomic landscape of human immune-mediated diseases. J Hum Genet 2015; 60:675-81. [PMID: 26290150 DOI: 10.1038/jhg.2015.99] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Revised: 07/06/2015] [Accepted: 07/16/2015] [Indexed: 02/06/2023]
Abstract
As the methodology of genetic detection has developed rapidly in recent years, through techniques such as genome-wide association studies (GWAS) and the secondary generation of sequencing, we are able to view the genomic landscape more clearly. It is well known that genes have a vital role in the pathogenesis of immune-mediated diseases (IMDs), which could provide important insight into new clinical therapeutic targets. Here, we review the genomic landscape of IMDs and analyse overlapping loci between diseases. There may be a need for more epigenetics studies to aid in the understanding of the transition from genotype to phenotype.
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Affiliation(s)
- Xin Wu
- Department of Rheumatology and Immunology, Shanghai Changzheng Hospital, The Second Military Medical University, Shanghai, China
| | - Haiyan Chen
- Department of Rheumatology, Zhongda Hospital, Southeast University, Shanghai, China
| | - Huji Xu
- Department of Rheumatology and Immunology, Shanghai Changzheng Hospital, The Second Military Medical University, Shanghai, China
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105
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Carvalho CN, do Carmo RF, Duarte ALP, Carvalho AAT, Leão JC, Gueiros LA. IL-17A and IL-17F polymorphisms in rheumatoid arthritis and Sjögren’s syndrome. Clin Oral Investig 2015; 20:495-502. [DOI: 10.1007/s00784-015-1540-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Accepted: 07/20/2015] [Indexed: 12/27/2022]
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106
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Ciccia F, Accardo-Palumbo A, Alessandro R, Alessandri C, Priori R, Guggino G, Raimondo S, Carubbi F, Valesini G, Giacomelli R, Rizzo A, Triolo G. Interleukin-36α axis is modulated in patients with primary Sjögren's syndrome. Clin Exp Immunol 2015; 181:230-8. [PMID: 25902739 PMCID: PMC4516438 DOI: 10.1111/cei.12644] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Revised: 04/16/2015] [Accepted: 04/16/2015] [Indexed: 12/16/2022] Open
Abstract
The aim of this study was to investigate the expression of the interleukin (IL)-36 axis in patients with primary Sjögren's syndrome (pSS). Blood and minor labial salivary glands (MSG) biopsies were obtained from 35 pSS and 20 non-Sjögren's syndrome patients (nSS) patients. Serum IL-36α was assayed by enzyme-linked immunosorbent assay (ELISA). IL-36α, IL-36R, IL-36RA, IL-38, IL-22, IL-17, IL-23p19 and expression in MSGs was assessed by reverse transcription-polymerase chain reaction (RT-PCR), and tissue IL-36α and IL-38 expression was also investigated by immunohistochemistry (IHC). αβ and γδ T cells and CD68(+) cells isolated from MSGs were also studied by flow cytometry and confocal microscopy analysis. IL-36α was over-expressed significantly in the serum and in the salivary glands of pSS. Salivary gland IL-36α expression was correlated with the expression levels of IL-17, IL-22 and IL-23p19. IL-38, that acts as inhibitor of IL-36α, was also up-regulated in pSS. αβ(+) CD3(+) T cells and CD68(+) cells were the major source of IL-36α in minor salivary glands of pSS. γδ T cells were not significantly expanded in the salivary glands of pSS but produced more IL-17, as their percentage correlated with the focus score. Higher expression of IL-36α and IL-36R was also demonstrated in γδ T cells isolated from pSS compared to controls. In this study we demonstrate that a significant increase in circulating and tissue levels of IL-36α occurs in pSS patients.
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MESH Headings
- Adult
- Antigens, CD/genetics
- Antigens, CD/immunology
- Antigens, Differentiation, Myelomonocytic/genetics
- Antigens, Differentiation, Myelomonocytic/immunology
- Case-Control Studies
- Female
- Gene Expression Regulation
- Humans
- Interleukin-1/genetics
- Interleukin-1/immunology
- Interleukin-17/genetics
- Interleukin-17/immunology
- Interleukin-23 Subunit p19/genetics
- Interleukin-23 Subunit p19/immunology
- Interleukins/genetics
- Interleukins/immunology
- Male
- Middle Aged
- Primary Cell Culture
- Receptors, Antigen, T-Cell, alpha-beta/genetics
- Receptors, Antigen, T-Cell, alpha-beta/immunology
- Receptors, Antigen, T-Cell, gamma-delta/genetics
- Receptors, Antigen, T-Cell, gamma-delta/immunology
- Receptors, Interleukin/genetics
- Receptors, Interleukin/immunology
- Salivary Glands/immunology
- Salivary Glands/pathology
- Signal Transduction
- Sjogren's Syndrome/genetics
- Sjogren's Syndrome/immunology
- Sjogren's Syndrome/pathology
- T-Lymphocytes/immunology
- T-Lymphocytes/pathology
- Interleukin-22
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Affiliation(s)
- F Ciccia
- Dipartimento Biomedico di Medicina Interna e Specialistiche, Sezione di Reumatologia, Università di PalermoItaly
| | - A Accardo-Palumbo
- Dipartimento di Oncoematologia, Azienda Ospedaliera Ospedali Riuniti Villa Sofia-Cervello, Sezione di Anatomia PatologicaPalermo, Italy
| | - R Alessandro
- Dipartimento di Biopatologia e Biotecnologie Mediche e Forensi, Università di PalermoItaly
| | - C Alessandri
- UOC di Reumatologia, Dipartimento di Medicina Interna e Specialità Mediche, Sapienza Università degli Studi di RomaItaly
| | - R Priori
- UOC di Reumatologia, Dipartimento di Medicina Interna e Specialità Mediche, Sapienza Università degli Studi di RomaItaly
| | - G Guggino
- Dipartimento Biomedico di Medicina Interna e Specialistiche, Sezione di Reumatologia, Università di PalermoItaly
| | - S Raimondo
- Dipartimento di Biopatologia e Biotecnologie Mediche e Forensi, Università di PalermoItaly
| | - F Carubbi
- UOC di Oculistica, Dipartimento di Biomedicina Sperimentale e Neuroscienze Cliniche, Università degli Studi di PalermoItaly
| | - G Valesini
- UOC di Reumatologia, Dipartimento di Medicina Interna e Specialità Mediche, Sapienza Università degli Studi di RomaItaly
| | - R Giacomelli
- UOC di Oculistica, Dipartimento di Biomedicina Sperimentale e Neuroscienze Cliniche, Università degli Studi di PalermoItaly
| | - A Rizzo
- Dipartimento di Oncoematologia, Azienda Ospedaliera Ospedali Riuniti Villa Sofia-Cervello, Sezione di Anatomia PatologicaPalermo, Italy
| | - G Triolo
- Dipartimento Biomedico di Medicina Interna e Specialistiche, Sezione di Reumatologia, Università di PalermoItaly
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107
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Inhibitors of T cell Activation in the Treatment of Sjögren’s Syndrome. CURRENT TREATMENT OPTIONS IN RHEUMATOLOGY 2015. [DOI: 10.1007/s40674-015-0024-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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108
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Distribution of Peripheral Lymphocyte Populations in Primary Sjögren's Syndrome Patients. J Immunol Res 2015; 2015:854706. [PMID: 26090503 PMCID: PMC4452000 DOI: 10.1155/2015/854706] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Revised: 12/21/2014] [Accepted: 01/12/2015] [Indexed: 12/29/2022] Open
Abstract
Purpose of this study was to evaluate the lymphocyte populations' distribution changes in peripheral blood of patients with primary Sjögren's syndrome (pSS). Lymphocyte populations' distribution changes in peripheral blood of pSS patients were investigated in 52 patients with pSS and in 28 healthy controls by flow cytometry. We found decreased absolute count of CD3+ T cell population in pSS patients. Analysis of CD4+ T cell population showed significant proportion and absolute count differences in pSS patient's blood with SSA/SSB antibodies (Abs) in comparison to controls. No significant differences were observed analyzing CD4+ and CD8+ Treg subpopulation. Proportion and absolute counts of Th17 cells were significantly lower in pSS patient's blood. Absolute counts of CD8+ T cells were significantly lower in pSS patients in comparison to controls and also impaired proportion and absolute counts of CD8+ subpopulations according to CD27+ and CD57+ were observed. Absolute counts of NKT and NK cells were decreased in pSS with Abs. B cells proportion was increased only in blood of pSS with Abs. Lymphocyte distribution impairment can be due to genetically determined lymphopenia or lymphocyte migration from periphery to inflammatory sites or/and increased susceptibility to apoptosis.
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109
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Deng F, Chen J, Zheng J, Chen Y, Huang R, Yin J, Gao X, Lin Q, Huang C, Gao Y, Yu X, Liu Z. Association of BAFF and IL-17A with subphenotypes of primary Sjögren's syndrome. Int J Rheum Dis 2015; 19:715-20. [PMID: 25941062 DOI: 10.1111/1756-185x.12569] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
AIM Primary Sjögren's syndrome (pSS) is an autoimmune disease affecting exocrine glands. Both autoreactive T cells and B cells are involved in the development of pSS, but their exact contribution to the pathogenesis is not clear. Here, we aimed to investigate the association of B-cell activating factor (BAFF) and interleukin (IL)-17A with subphenotypes of pSS. METHODS Peripheral blood samples were collected from 31 pSS patients and 28 healthy controls. The serum levels of BAFF and IL-17A were quantified by sandwich ELISA. RESULTS The increased circulating BAFF levels are associated with higher immunoglobulin G (IgG) levels (P = 0.0167) and anti-Ro/SS antigen A autoantibody (P = 0.032), while the elevated circulating levels of IL-17A are associated with lower C3 levels (P = 0.0213) and higher focus score of salivary gland tissue (P = 0.002). CONCLUSION Our results show that BAFF and IL-17A are associated with different subphenotypes of pSS, suggesting both humoral and cellular immune response are involved in the pathogenesis of pSS.
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Affiliation(s)
- Fengyuan Deng
- Laboratory of Autoimmunity, Medical College of Xiamen University, Xiamen, China
| | - Juan Chen
- Rheumatology Department of the First Afflicted Hospital of Xiamen University, Xiamen, China
| | - Junfeng Zheng
- Laboratory of Autoimmunity, Medical College of Xiamen University, Xiamen, China
| | - Yan Chen
- Laboratory of Autoimmunity, Medical College of Xiamen University, Xiamen, China
| | - Renliang Huang
- Laboratory of Autoimmunity, Medical College of Xiamen University, Xiamen, China
| | - Junping Yin
- Laboratory of Autoimmunity, Medical College of Xiamen University, Xiamen, China
| | - Xing Gao
- Department of Clinical Laboratory, Xiamen University Hospital, Xiamen University, Xiamen, China
| | - Qingyan Lin
- Rheumatology Department of the First Afflicted Hospital of Xiamen University, Xiamen, China
| | - Chaoyang Huang
- Rheumatology Department of the First Afflicted Hospital of Xiamen University, Xiamen, China
| | - Yushan Gao
- Rheumatology Department of the First Afflicted Hospital of Xiamen University, Xiamen, China
| | - Xinhua Yu
- Laboratory of Autoimmunity, Medical College of Xiamen University, Xiamen, China.,Division of Biochemical Immunology, Research Center Borstel, Borstel, Germany
| | - Zuguo Liu
- Eye Institute and Affiliated Xiamen Eye Center of Xiamen University, Xiamen, Fujian, China
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110
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Alunno A, Carubbi F, Bistoni O, Caterbi S, Bartoloni E, Mirabelli G, Cannarile F, Cipriani P, Giacomelli R, Gerli R. T Regulatory and T Helper 17 Cells in Primary Sjögren's Syndrome: Facts and Perspectives. Mediators Inflamm 2015; 2015:243723. [PMID: 26060357 PMCID: PMC4427804 DOI: 10.1155/2015/243723] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Revised: 04/14/2015] [Accepted: 04/16/2015] [Indexed: 12/11/2022] Open
Abstract
Historically, primary Sjögren's syndrome (pSS) was thought to be a T helper (h) 1 driven disease due to the predominance of CD4(+)T lymphocytes and their products in target organs and peripheral blood of patients. In the last decades, the identification of a number of T cell subsets, including Th17, T regulatory (Treg), and follicular helper T cells, challenged this long-standing paradigm and prompted to identify their role in pSS pathogenesis. In addition the impact of abnormal proinflammatory cytokine production, such as IL-6, IL-17, IL-22, and IL-23, has also attracted considerable attention. However, although several studies have been carried out in experimental models and patients with pSS, many aspects concerning the role of Treg cells and IL-17/Th17 cell system in pSS pathogenesis are not fully elucidated. In particular, the role played by different IL-17-producing T cell subsets as well as the effects of pharmacological therapies on Treg/Th17 cell balance represents an intriguing issue. The aim of this review article is to provide an overview of current knowledge on Treg cells and IL-17-producing T cells in pSS pathogenesis. We believe that these insights into pSS pathogenesis may provide the basis for successful therapeutic intervention in this disease.
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Affiliation(s)
- Alessia Alunno
- Rheumatology Unit, Department of Medicine, University of Perugia, 06123 Perugia, Italy
| | - Francesco Carubbi
- Rheumatology Unit, Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, 67100 L'Aquila, Italy
| | - Onelia Bistoni
- Rheumatology Unit, Department of Medicine, University of Perugia, 06123 Perugia, Italy
| | - Sara Caterbi
- Rheumatology Unit, Department of Medicine, University of Perugia, 06123 Perugia, Italy
| | - Elena Bartoloni
- Rheumatology Unit, Department of Medicine, University of Perugia, 06123 Perugia, Italy
| | - Giulia Mirabelli
- Rheumatology Unit, Department of Medicine, University of Perugia, 06123 Perugia, Italy
| | - Francesca Cannarile
- Rheumatology Unit, Department of Medicine, University of Perugia, 06123 Perugia, Italy
| | - Paola Cipriani
- Rheumatology Unit, Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, 67100 L'Aquila, Italy
| | - Roberto Giacomelli
- Rheumatology Unit, Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, 67100 L'Aquila, Italy
| | - Roberto Gerli
- Rheumatology Unit, Department of Medicine, University of Perugia, 06123 Perugia, Italy
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111
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Bian F, Barbosa FL, Corrales RM, Pelegrino FSA, Volpe EA, Pflugfelder SC, de Paiva CS. Altered balance of interleukin-13/interferon-gamma contributes to lacrimal gland destruction and secretory dysfunction in CD25 knockout model of Sjögren's syndrome. Arthritis Res Ther 2015; 17:53. [PMID: 25889094 PMCID: PMC4392623 DOI: 10.1186/s13075-015-0582-9] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Accepted: 02/24/2015] [Indexed: 11/26/2022] Open
Abstract
Introduction The lacrimal gland (LG) of the CD25-/- model of Sjögren’s syndrome (SS) has high interleukin (IL)-17, IL-13 and interferon-gamma (IFN-γ) cytokines. The specific contribution of these cytokines to the onset and severity of dacryoadenitis in the CD25-/- mice has not been evaluated. Methods CD25−/−IL-17A−/−, CD25−/−IL-17−/−IFN-γ−/− and CD25−/−IFN-γ−/− were used at 4, 8, 12, 16 weeks (W). Total lymphocytic infiltration was evaluated by histology and characterized by flow cytometry. Epidermal growth factor (EGF) concentration was measured in tears. Immunofluorescent staining evaluated expression of IFN-γ receptor (IFN-γR) and apoptosis. Real-time PCR evaluated inflammatory and T cell-related cytokines expression in LG. Caspase-3, -8, -9 activities was assayed in LG lysates. T helper cytokines were measured in serum by Luminex assay. Results The greatest total LG infiltration at 8 W was seen in CD25−/−IL-17A−/− (95%), followed by CD25−/− (71%) and IL-17−/− (12%). Tear EGF concentration was in normal range in CD25−/− at 4 W and in very low levels in both CD25−/− and CD25−/−IL-17A−/−. CD25−/− had high levels of inflammatory cytokines transcripts in LG compared to IL-17−/− mice; however, CD25−/−IL-17A−/− had even higher IL-1β, IFN-γR, caspase-3, -8, -9 mRNA levels, greater immunoreactivity to IFN-γR in LG acini, greater number of apoptotic+ cells and greater caspases activities in the LG at 8 W. CD25−/−IL-17A−/− had lower IL-13 concentration and lower IL-13/IFN-γ ratio compared to CD25−/− in serum. CD25−/−IFN-γ−/− had lower number of apoptotic+ cells and decreased caspase-3 expression in LG. CD25−/−IL-17−/−IFN-γ−/− had lower total lymphocytic cell infiltration at 8 W (48%), CD4+T cell infiltration and expression of IFN-γR and apoptotic+ cells in the LG and increased tear EGF concentration in tears. Conclusions IFN-γ is critical for LG destruction and secretory dysfunction in the CD25−/− model of SS. Altered balance between IFN-γ and IL-13 in the CD25−/−IL-17A−/− mice accelerates LG destruction by increasing glandular apoptosis and facilitating apoptosis through increased expression of IFN-γR by glandular epithelium and activation of caspases. Targeting both IFN-γ and IL-17 may be beneficial for treating the LG inflammation in SS.
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Affiliation(s)
- Fang Bian
- Ocular Surface Center, Department of Ophthalmology, Cullen Eye Institute, Baylor College of Medicine, 6565 Fannin Street, NC505G, Houston, TX 77030, Texas, USA.
| | - Flavia L Barbosa
- Ocular Surface Center, Department of Ophthalmology, Cullen Eye Institute, Baylor College of Medicine, 6565 Fannin Street, NC505G, Houston, TX 77030, Texas, USA.
| | - Rosa M Corrales
- Ocular Surface Center, Department of Ophthalmology, Cullen Eye Institute, Baylor College of Medicine, 6565 Fannin Street, NC505G, Houston, TX 77030, Texas, USA.
| | - Flavia S A Pelegrino
- Ocular Surface Center, Department of Ophthalmology, Cullen Eye Institute, Baylor College of Medicine, 6565 Fannin Street, NC505G, Houston, TX 77030, Texas, USA.
| | - Eugene A Volpe
- Ocular Surface Center, Department of Ophthalmology, Cullen Eye Institute, Baylor College of Medicine, 6565 Fannin Street, NC505G, Houston, TX 77030, Texas, USA.
| | - Stephen C Pflugfelder
- Ocular Surface Center, Department of Ophthalmology, Cullen Eye Institute, Baylor College of Medicine, 6565 Fannin Street, NC505G, Houston, TX 77030, Texas, USA.
| | - Cintia S de Paiva
- Ocular Surface Center, Department of Ophthalmology, Cullen Eye Institute, Baylor College of Medicine, 6565 Fannin Street, NC505G, Houston, TX 77030, Texas, USA.
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Han L, Yang J, Wang X, Li D, Lv L, Li B. Th17 cells in autoimmune diseases. Front Med 2015; 9:10-9. [PMID: 25652649 DOI: 10.1007/s11684-015-0388-9] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Accepted: 12/12/2014] [Indexed: 02/07/2023]
Abstract
Th17 cells are a new subset of CD4(+) T cells involved in the clearance of extracellular pathogens and fungi. Accumulating evidence suggests that Th17 cells and their signature cytokines have a pivotal role in the pathogenesis of multiple autoimmune-mediated inflammatory diseases. Here, we summarize recent research progress on Th17 function in the development and pathogenesis of autoimmune diseases. We also propose to identify new small molecule compounds to manipulate Th17 function for potential therapeutic application to treat human autoimmune diseases, including rheumatoid arthritis, systemic lupus erythematosus, Sjögren's syndrome, inflammatory bowel disease, and multiple sclerosis.
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Affiliation(s)
- Lei Han
- Division of Rheumatology, Huashan Hospital, Fudan University, Shanghai, 200040, China
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113
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Schaefer JS, Attumi T, Opekun AR, Abraham B, Hou J, Shelby H, Graham DY, Streckfus C, Klein JR. MicroRNA signatures differentiate Crohn's disease from ulcerative colitis. BMC Immunol 2015; 16:5. [PMID: 25886994 PMCID: PMC4335694 DOI: 10.1186/s12865-015-0069-0] [Citation(s) in RCA: 136] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Accepted: 01/20/2015] [Indexed: 12/11/2022] Open
Abstract
Background Excessive and inappropriate immune responses are the hallmark of several autoimmune disorders, including the inflammatory bowel diseases (IBD): Crohn’s disease (CD) and ulcerative colitis (UC). A complex etiology involving both environmental and genetic factors influences IBD pathogenesis. The role of microRNAs (miRNAs), noncoding RNAs involved in regulating numerous biological processes, to IBD pathology, in terms of initiation and progression, remains ill-defined. In the present study, we evaluated the relationship between colon, peripheral blood, and saliva whole miRNome expression in IBD patients and non-inflammatory bowel disease (non-IBD) controls to identify miRNAs that could discriminate CD from UC. Quantitative real-time PCR (qRT-PCR) was used to validate and assess miRNA expression. Results Microarray analysis demonstrated that upwards of twenty six miRNAs were changed in CD and UC colon biopsies relative to the non-IBD controls. CD was associated with the differential expression of 10 miRNAs while UC was associated with 6 miRNAs in matched colon tissues. CD was associated with altered expression of 6 miRNAs while UC was associated with 9 miRNAs in whole blood. Expression of miR-101 in CD patients and miR-21, miR-31, miR-142-3p, and miR-142-5p in UC patients were altered in saliva. Conclusions Our results suggest that there is specific miRNA expression patterns associated with UC versus CD in three separate tissue/body fluids (colon, blood, and saliva). Further, the aberrant miRNA expression profiles indicate that miRNAs may be contributory to IBD pathogenesis, or at least reflect the underlying inflammation. Scrutinizing miRNA expression in saliva and blood samples may be beneficial in monitoring or diagnosing disease in IBD patients. A panel of miRNAs (miR-19a, miR-21, miR-31, miR-101, miR-146a, and miR-375) may be used as markers to identify and discriminate between CD and UC. Electronic supplementary material The online version of this article (doi:10.1186/s12865-015-0069-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jeremy S Schaefer
- Department of Diagnostic and Biomedical Sciences, The University of Texas Health Science Center at Houston School of Dentistry, Houston, TX, 77054, USA.
| | - Taraq Attumi
- Department of Medicine, Baylor College of Medicine, Houston, TX, USA. .,Michael E. DeBakey Veterans Affairs Medical Center, Houston, TX, USA.
| | - Antone R Opekun
- Department of Medicine, Baylor College of Medicine, Houston, TX, USA. .,Texas Children's Hospital, Houston, TX, USA.
| | - Bincy Abraham
- Department of Medicine, Baylor College of Medicine, Houston, TX, USA. .,Michael E. DeBakey Veterans Affairs Medical Center, Houston, TX, USA.
| | - Jason Hou
- Department of Medicine, Baylor College of Medicine, Houston, TX, USA. .,VA HSR&D Center for Innovations in Quality, Effectiveness and Safety, Michael E. DeBakey VA Medical Center, Houston, TX, USA.
| | - Harold Shelby
- Department of Medicine, Baylor College of Medicine, Houston, TX, USA. .,Michael E. DeBakey Veterans Affairs Medical Center, Houston, TX, USA.
| | - David Y Graham
- Department of Medicine, Baylor College of Medicine, Houston, TX, USA. .,VA HSR&D Center for Innovations in Quality, Effectiveness and Safety, Michael E. DeBakey VA Medical Center, Houston, TX, USA.
| | - Charles Streckfus
- Department of Diagnostic and Biomedical Sciences, The University of Texas Health Science Center at Houston School of Dentistry, Houston, TX, 77054, USA.
| | - John R Klein
- Department of Diagnostic and Biomedical Sciences, The University of Texas Health Science Center at Houston School of Dentistry, Houston, TX, 77054, USA.
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Verstappen GM, Kroese FGM, Vissink A, Bootsma H. Pharmacotherapy for managing extraglandular symptoms of primary Sjögren’s syndrome. Expert Opin Orphan Drugs 2015. [DOI: 10.1517/21678707.2015.1010510] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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115
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Furuzawa-Carballeda J, Sánchez-Guerrero J, Betanzos JL, Enriquez AB, Avila-Casado C, Llorente L, Hernández-Molina G. Differential cytokine expression and regulatory cells in patients with primary and secondary Sjögren's syndrome. Scand J Immunol 2015; 80:432-40. [PMID: 25346207 DOI: 10.1111/sji.12224] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Accepted: 08/12/2014] [Indexed: 12/11/2022]
Abstract
Sjögren's syndrome (SS) is an autoimmune disease characterized by lymphocytic infiltration of the salivary and lacrimal glands. The aim of the study was to characterize and compare the presence of diverse cytokines and regulatory T and B cells in lip minor salivary gland (MSG) biopsies from patients with primary Sjögren's syndrome (pSS), secondary SS (sSS), and patients with connective tissue disease (CTD) without (w/o) SS. We included samples of MSG from 15 pSS, 24 sSS (six scleroderma, nine rheumatoid arthritis and nine lupus patients) and 15 patients with CTD w/o SS. Tissues were examined by an indirect immunoperoxidase technique (goat polyclonal anti-human IL-19, goat polyclonal anti-human IL-22 or mouse monoclonal anti-human IL-24). To determine the subpopulation of CD4(+)/IL-17A(+)-, CD4(+)/IL-4(+)-, CD4(+)/IFN-ɣ(+)-expressing T cells, CD25(+)/Foxp3(+) Treg cells and CD20(+)/IL-10(+)-producing B cell subset, a double-staining procedure was performed. We estimated the mean percentage of positively staining cells in two fields per sample. CD4(+)/IFN-ɣ(+), CD4(+)/IL-4(+) and IL-22(+) cell percentages were elevated in both SS varieties; however, the cells were more prevalent in pSS. Patients with pSS had a high number of CD4(+)/IL-17A(+) and IL-19(+) T cells and a lower percentage of IL-24(+) cells (P < 0.05). The Treg and IL-10-producing B cells were increased in pSS (P < 0.05). Concluding, in our patients, a pro-inflammatory and regulatory balance coexists in SS, being both responses more intense in pSS. The explanation of these differences may be related to disease activity, disease duration and treatment.
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Affiliation(s)
- J Furuzawa-Carballeda
- Department of Immunology and Rheumatology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
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Iizuka M, Tsuboi H, Matsuo N, Asashima H, Hirota T, Kondo Y, Iwakura Y, Takahashi S, Matsumoto I, Sumida T. A crucial role of RORγt in the development of spontaneous Sialadenitis-like Sjögren's syndrome. THE JOURNAL OF IMMUNOLOGY 2014; 194:56-67. [PMID: 25411202 DOI: 10.4049/jimmunol.1401118] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The nuclear receptor retinoic acid-related orphan receptor (ROR)γt is required for the generation of Th17 cells, which are involved in various autoimmune diseases, including Sjögren's syndrome (SS). However, the pathological role of RORγt in SS remains to be elucidated. The present study was designed to clarify the role of RORγt in the pathogenesis of sialadenitis-like SS. Histological analysis of RORγt transgenic (Tg) mice was determined, and then Tg mice developed severe spontaneous sialadenitis-like SS. The analysis of infiltrating cells showed that most infiltrating cells were CD4(+) T cells. RORγt-overexpressing CD4(+) T cells induced sialadenitis as a result of transferred CD4(+) T cells from Tg mice into Rag2(-/-) mice. The examination of IL-17-deficient Tg mice indicated that IL-17 was not essential for the development of sialadenitis. The number of CD4(+)CD25(+)Foxp3(+) regulatory T (Treg) cells was significantly decreased in Tg mice, and CD25 expression and IL-2 stimulated STAT5 activation were inhibited in Treg cells. The inhibitory function of Treg cells of Tg mice was equal to that of wild-type mice in vitro. The abundant Treg cells of Tg mice could suppress the development of sialadenitis, but the reduced Treg cells of Tg mice could not inhibit the induction of sialadenitis in Rag2(-/-) mice transferred with effector cells from Tg mice. These results suggest that both RORγt-overexpressed CD4(+) T cells and reduced Treg cells might contribute to the development of SS-like sialadenitis.
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Affiliation(s)
- Mana Iizuka
- Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-0006, Japan
| | - Hiroto Tsuboi
- Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-0006, Japan
| | - Naomi Matsuo
- Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-0006, Japan
| | - Hiromitsu Asashima
- Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-0006, Japan
| | - Tomoya Hirota
- Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-0006, Japan
| | - Yuya Kondo
- Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-0006, Japan
| | - Yoichiro Iwakura
- Research Institute for Biomedical Sciences, Tokyo University of Science, Noda, Chiba 278-0022, Japan; and
| | - Satoru Takahashi
- Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
| | - Isao Matsumoto
- Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-0006, Japan
| | - Takayuki Sumida
- Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-0006, Japan;
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Sada PR, Isenberg D, Ciurtin C. Biologic treatment in Sjogren's syndrome. Rheumatology (Oxford) 2014; 54:219-30. [DOI: 10.1093/rheumatology/keu417] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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118
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Lee JH, Kwok SK, Jung SM, Lee J, Lee JS, Baek SY, Kim EK, Ju JH, Park SH, Kim HY. Role of fractalkine in the pathogenesis of primary Sjögren syndrome: increased serum levels of fractalkine, its expression in labial salivary glands, and the association with clinical manifestations. J Rheumatol 2014; 41:2425-38. [PMID: 25320221 DOI: 10.3899/jrheum.130892] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
OBJECTIVE To investigate the expression of fractalkine and identify the clinical effects of fractalkine and its receptor (CX3CR1) in patients with primary Sjögren syndrome (pSS). METHODS Serum fractalkine levels were determined by ELISA. Immunohistochemical staining was done to compare the expression of fractalkine and CX3CR1 between salivary glands (SG) of patients with SS and controls. The cells to be merged with fractalkine were evaluated by confocal microscopy. Type of CX3CR1-expressing cells among infiltrating lymphocytes in SG was analyzed by confocal microscopy. Further, associations among fractalkine, proinflammatory cytokines, and clinical profiles were investigated. RESULTS Serum fractalkine levels in patients with pSS were higher than those in the control group (p = 0.026). SG expression of fractalkine and its receptor was upregulated in patients with pSS compared to that in the controls by immunohistochemistry. Higher histological grade was associated with more fractalkine-positive cells per total epithelial cells. Epithelial cells were the main fractalkine-expressing cell type in the SG. Serum fractalkine levels were significantly correlated with proinflammatory cytokines levels (interleukin 17: r = 0.685, p = 0.029; tumor necrosis factor-α: r = 0.444, p = 0.003), antinuclear antibody (r = 0.349, p = 0.022), and immunoglobulin G levels (r = 0.325, p = 0.044). Serum fractalkine levels in patients with extraglandular manifestations of pSS were significantly higher than in those without extraglandular manifestations (p = 0.026). CONCLUSION Fractalkine and CX3CR1 may play a role in the pathogenesis of pSS, including extraglandular manifestations.
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Affiliation(s)
- Jae Ho Lee
- From the Division of Rheumatology, Department of Internal Medicine, School of Medicine, and the Rheumatism Research Center, The Catholic University of Korea, Seoul, South Korea.J.H. Lee, MD, Bachelor's degree, Appointment Physician, Rheumatology Specialist, Fellow; S-K. Kwok, MD, PhD, Appointment Physician, Rheumatology Specialist, Associate Professor; S.M. Jung, MD, Bachelor's degree, Appointment Physician, Rheumatology Specialist, Fellow; J. Lee, MD, Bachelor's degree, Appointment Physician, Rheumatology Specialist, Fellow; J.H. Ju, MD, PhD, Appointment Physician, Rheumatology Specialist, Associate Professor; S-H. Park, MD, PhD, Appointment Physician, Rheumatology Specialist, Professor; H-Y. Kim, MD, PhD, Appointment Physician, Rheumatology Specialist, Professor, Division of Rheumatology, Department of Internal Medicine, School of Medicine; J-S. Lee, Master's degree, Appointment Researcher; S.Y. Baek, Bachelor's degree, Appointment Researcher; E-K. Kim, Bachelor's degree, Appointment Researcher, Rheumatism Research Center, The Catholic University of Korea
| | - Seung-Ki Kwok
- From the Division of Rheumatology, Department of Internal Medicine, School of Medicine, and the Rheumatism Research Center, The Catholic University of Korea, Seoul, South Korea.J.H. Lee, MD, Bachelor's degree, Appointment Physician, Rheumatology Specialist, Fellow; S-K. Kwok, MD, PhD, Appointment Physician, Rheumatology Specialist, Associate Professor; S.M. Jung, MD, Bachelor's degree, Appointment Physician, Rheumatology Specialist, Fellow; J. Lee, MD, Bachelor's degree, Appointment Physician, Rheumatology Specialist, Fellow; J.H. Ju, MD, PhD, Appointment Physician, Rheumatology Specialist, Associate Professor; S-H. Park, MD, PhD, Appointment Physician, Rheumatology Specialist, Professor; H-Y. Kim, MD, PhD, Appointment Physician, Rheumatology Specialist, Professor, Division of Rheumatology, Department of Internal Medicine, School of Medicine; J-S. Lee, Master's degree, Appointment Researcher; S.Y. Baek, Bachelor's degree, Appointment Researcher; E-K. Kim, Bachelor's degree, Appointment Researcher, Rheumatism Research Center, The Catholic University of Korea.
| | - Seung Min Jung
- From the Division of Rheumatology, Department of Internal Medicine, School of Medicine, and the Rheumatism Research Center, The Catholic University of Korea, Seoul, South Korea.J.H. Lee, MD, Bachelor's degree, Appointment Physician, Rheumatology Specialist, Fellow; S-K. Kwok, MD, PhD, Appointment Physician, Rheumatology Specialist, Associate Professor; S.M. Jung, MD, Bachelor's degree, Appointment Physician, Rheumatology Specialist, Fellow; J. Lee, MD, Bachelor's degree, Appointment Physician, Rheumatology Specialist, Fellow; J.H. Ju, MD, PhD, Appointment Physician, Rheumatology Specialist, Associate Professor; S-H. Park, MD, PhD, Appointment Physician, Rheumatology Specialist, Professor; H-Y. Kim, MD, PhD, Appointment Physician, Rheumatology Specialist, Professor, Division of Rheumatology, Department of Internal Medicine, School of Medicine; J-S. Lee, Master's degree, Appointment Researcher; S.Y. Baek, Bachelor's degree, Appointment Researcher; E-K. Kim, Bachelor's degree, Appointment Researcher, Rheumatism Research Center, The Catholic University of Korea
| | - Jennifer Lee
- From the Division of Rheumatology, Department of Internal Medicine, School of Medicine, and the Rheumatism Research Center, The Catholic University of Korea, Seoul, South Korea.J.H. Lee, MD, Bachelor's degree, Appointment Physician, Rheumatology Specialist, Fellow; S-K. Kwok, MD, PhD, Appointment Physician, Rheumatology Specialist, Associate Professor; S.M. Jung, MD, Bachelor's degree, Appointment Physician, Rheumatology Specialist, Fellow; J. Lee, MD, Bachelor's degree, Appointment Physician, Rheumatology Specialist, Fellow; J.H. Ju, MD, PhD, Appointment Physician, Rheumatology Specialist, Associate Professor; S-H. Park, MD, PhD, Appointment Physician, Rheumatology Specialist, Professor; H-Y. Kim, MD, PhD, Appointment Physician, Rheumatology Specialist, Professor, Division of Rheumatology, Department of Internal Medicine, School of Medicine; J-S. Lee, Master's degree, Appointment Researcher; S.Y. Baek, Bachelor's degree, Appointment Researcher; E-K. Kim, Bachelor's degree, Appointment Researcher, Rheumatism Research Center, The Catholic University of Korea
| | - Jae-Seon Lee
- From the Division of Rheumatology, Department of Internal Medicine, School of Medicine, and the Rheumatism Research Center, The Catholic University of Korea, Seoul, South Korea.J.H. Lee, MD, Bachelor's degree, Appointment Physician, Rheumatology Specialist, Fellow; S-K. Kwok, MD, PhD, Appointment Physician, Rheumatology Specialist, Associate Professor; S.M. Jung, MD, Bachelor's degree, Appointment Physician, Rheumatology Specialist, Fellow; J. Lee, MD, Bachelor's degree, Appointment Physician, Rheumatology Specialist, Fellow; J.H. Ju, MD, PhD, Appointment Physician, Rheumatology Specialist, Associate Professor; S-H. Park, MD, PhD, Appointment Physician, Rheumatology Specialist, Professor; H-Y. Kim, MD, PhD, Appointment Physician, Rheumatology Specialist, Professor, Division of Rheumatology, Department of Internal Medicine, School of Medicine; J-S. Lee, Master's degree, Appointment Researcher; S.Y. Baek, Bachelor's degree, Appointment Researcher; E-K. Kim, Bachelor's degree, Appointment Researcher, Rheumatism Research Center, The Catholic University of Korea
| | - Seung Ye Baek
- From the Division of Rheumatology, Department of Internal Medicine, School of Medicine, and the Rheumatism Research Center, The Catholic University of Korea, Seoul, South Korea.J.H. Lee, MD, Bachelor's degree, Appointment Physician, Rheumatology Specialist, Fellow; S-K. Kwok, MD, PhD, Appointment Physician, Rheumatology Specialist, Associate Professor; S.M. Jung, MD, Bachelor's degree, Appointment Physician, Rheumatology Specialist, Fellow; J. Lee, MD, Bachelor's degree, Appointment Physician, Rheumatology Specialist, Fellow; J.H. Ju, MD, PhD, Appointment Physician, Rheumatology Specialist, Associate Professor; S-H. Park, MD, PhD, Appointment Physician, Rheumatology Specialist, Professor; H-Y. Kim, MD, PhD, Appointment Physician, Rheumatology Specialist, Professor, Division of Rheumatology, Department of Internal Medicine, School of Medicine; J-S. Lee, Master's degree, Appointment Researcher; S.Y. Baek, Bachelor's degree, Appointment Researcher; E-K. Kim, Bachelor's degree, Appointment Researcher, Rheumatism Research Center, The Catholic University of Korea
| | - Eun-Kyung Kim
- From the Division of Rheumatology, Department of Internal Medicine, School of Medicine, and the Rheumatism Research Center, The Catholic University of Korea, Seoul, South Korea.J.H. Lee, MD, Bachelor's degree, Appointment Physician, Rheumatology Specialist, Fellow; S-K. Kwok, MD, PhD, Appointment Physician, Rheumatology Specialist, Associate Professor; S.M. Jung, MD, Bachelor's degree, Appointment Physician, Rheumatology Specialist, Fellow; J. Lee, MD, Bachelor's degree, Appointment Physician, Rheumatology Specialist, Fellow; J.H. Ju, MD, PhD, Appointment Physician, Rheumatology Specialist, Associate Professor; S-H. Park, MD, PhD, Appointment Physician, Rheumatology Specialist, Professor; H-Y. Kim, MD, PhD, Appointment Physician, Rheumatology Specialist, Professor, Division of Rheumatology, Department of Internal Medicine, School of Medicine; J-S. Lee, Master's degree, Appointment Researcher; S.Y. Baek, Bachelor's degree, Appointment Researcher; E-K. Kim, Bachelor's degree, Appointment Researcher, Rheumatism Research Center, The Catholic University of Korea
| | - Ji Hyeon Ju
- From the Division of Rheumatology, Department of Internal Medicine, School of Medicine, and the Rheumatism Research Center, The Catholic University of Korea, Seoul, South Korea.J.H. Lee, MD, Bachelor's degree, Appointment Physician, Rheumatology Specialist, Fellow; S-K. Kwok, MD, PhD, Appointment Physician, Rheumatology Specialist, Associate Professor; S.M. Jung, MD, Bachelor's degree, Appointment Physician, Rheumatology Specialist, Fellow; J. Lee, MD, Bachelor's degree, Appointment Physician, Rheumatology Specialist, Fellow; J.H. Ju, MD, PhD, Appointment Physician, Rheumatology Specialist, Associate Professor; S-H. Park, MD, PhD, Appointment Physician, Rheumatology Specialist, Professor; H-Y. Kim, MD, PhD, Appointment Physician, Rheumatology Specialist, Professor, Division of Rheumatology, Department of Internal Medicine, School of Medicine; J-S. Lee, Master's degree, Appointment Researcher; S.Y. Baek, Bachelor's degree, Appointment Researcher; E-K. Kim, Bachelor's degree, Appointment Researcher, Rheumatism Research Center, The Catholic University of Korea
| | - Sung-Hwan Park
- From the Division of Rheumatology, Department of Internal Medicine, School of Medicine, and the Rheumatism Research Center, The Catholic University of Korea, Seoul, South Korea.J.H. Lee, MD, Bachelor's degree, Appointment Physician, Rheumatology Specialist, Fellow; S-K. Kwok, MD, PhD, Appointment Physician, Rheumatology Specialist, Associate Professor; S.M. Jung, MD, Bachelor's degree, Appointment Physician, Rheumatology Specialist, Fellow; J. Lee, MD, Bachelor's degree, Appointment Physician, Rheumatology Specialist, Fellow; J.H. Ju, MD, PhD, Appointment Physician, Rheumatology Specialist, Associate Professor; S-H. Park, MD, PhD, Appointment Physician, Rheumatology Specialist, Professor; H-Y. Kim, MD, PhD, Appointment Physician, Rheumatology Specialist, Professor, Division of Rheumatology, Department of Internal Medicine, School of Medicine; J-S. Lee, Master's degree, Appointment Researcher; S.Y. Baek, Bachelor's degree, Appointment Researcher; E-K. Kim, Bachelor's degree, Appointment Researcher, Rheumatism Research Center, The Catholic University of Korea
| | - Ho-Youn Kim
- From the Division of Rheumatology, Department of Internal Medicine, School of Medicine, and the Rheumatism Research Center, The Catholic University of Korea, Seoul, South Korea.J.H. Lee, MD, Bachelor's degree, Appointment Physician, Rheumatology Specialist, Fellow; S-K. Kwok, MD, PhD, Appointment Physician, Rheumatology Specialist, Associate Professor; S.M. Jung, MD, Bachelor's degree, Appointment Physician, Rheumatology Specialist, Fellow; J. Lee, MD, Bachelor's degree, Appointment Physician, Rheumatology Specialist, Fellow; J.H. Ju, MD, PhD, Appointment Physician, Rheumatology Specialist, Associate Professor; S-H. Park, MD, PhD, Appointment Physician, Rheumatology Specialist, Professor; H-Y. Kim, MD, PhD, Appointment Physician, Rheumatology Specialist, Professor, Division of Rheumatology, Department of Internal Medicine, School of Medicine; J-S. Lee, Master's degree, Appointment Researcher; S.Y. Baek, Bachelor's degree, Appointment Researcher; E-K. Kim, Bachelor's degree, Appointment Researcher, Rheumatism Research Center, The Catholic University of Korea
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Jensen SB, Vissink A. Salivary gland dysfunction and xerostomia in Sjögren's syndrome. Oral Maxillofac Surg Clin North Am 2014; 26:35-53. [PMID: 24287192 DOI: 10.1016/j.coms.2013.09.003] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
In this article, salivary gland dysfunction and xerostomia in Sjögren's syndrome (SS) are discussed, with a focus on the pathophysiology of salivary dysfunction in SS, the clinical presentation of dry mouth in SS, how to assess salivary gland hypofunction and xerostomia in SS, and the impact of salivary gland dysfunction on quality of life in patients with SS.
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Affiliation(s)
- Siri Beier Jensen
- Section of Oral Medicine, Clinical Oral Physiology, Oral Pathology and Anatomy, Department of Odontology, Faculty of Health and Medical Sciences, University of Copenhagen, Nørre Allé 20, 2200 Copenhagen N, Denmark.
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120
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Singh RP, Hasan S, Sharma S, Nagra S, Yamaguchi DT, Wong DTW, Hahn BH, Hossain A. Th17 cells in inflammation and autoimmunity. Autoimmun Rev 2014; 13:1174-81. [PMID: 25151974 DOI: 10.1016/j.autrev.2014.08.019] [Citation(s) in RCA: 151] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Accepted: 07/05/2014] [Indexed: 02/06/2023]
Abstract
T helper 17 (Th17), a distinct subset of CD4(+) T cells with IL-17 as their major cytokine, orchestrate the pathogenesis of inflammatory and autoimmune diseases. Dysregulated Th17 cells contribute to inflammatory and autoimmune diseases. Candidate biologics are in development for targeting IL-17, IL-17 receptors or IL-17 pathways. Several drugs that impact the IL-17 pathway are already in clinical trials for the treatment of autoimmune diseases. In this review we provide evidence for the role of Th17 cells in immune-mediated diseases. An understanding of the role of Th17 in these conditions will provide important insights and unravel novel targets for therapeutic intervention.
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Affiliation(s)
- Ram Pyare Singh
- Division of Rheumatology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, 90095-1670, USA; Research Service, Veterans Affairs Greater Los Angeles Health Care System, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, 90095-1670, USA.
| | - Sascha Hasan
- Sanguine Biosciences Inc, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, 90095-1670, USA
| | - Sherven Sharma
- Research Service, Veterans Affairs Greater Los Angeles Health Care System, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, 90095-1670, USA
| | - Saranpreet Nagra
- Division of Rheumatology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, 90095-1670, USA
| | - Dean T Yamaguchi
- Research Service, Veterans Affairs Greater Los Angeles Health Care System, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, 90095-1670, USA
| | - David T W Wong
- UCLA School of Dentistry, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, 90095-1670, USA
| | - Bevra H Hahn
- Division of Rheumatology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, 90095-1670, USA
| | - Awlad Hossain
- Division of Rheumatology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, 90095-1670, USA
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Alunno A, Carubbi F, Bartoloni E, Bistoni O, Caterbi S, Cipriani P, Giacomelli R, Gerli R. Unmasking the pathogenic role of IL-17 axis in primary Sjögren's syndrome: a new era for therapeutic targeting? Autoimmun Rev 2014; 13:1167-73. [PMID: 25183242 DOI: 10.1016/j.autrev.2014.08.022] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2014] [Accepted: 07/04/2014] [Indexed: 01/09/2023]
Abstract
Compelling evidence suggests that the IL-17 axis plays a pivotal role in the pathogenesis of several autoimmune disorders including primary Sjögren's syndrome (pSS). However, although several studies have been carried out in experimental models and patients with pSS, many aspects of this field are not fully elucidated. In particular, the role played by different Th17 cell subsets as well as the effects of pharmacological therapies on IL-17 balance represent an intriguing issue. Furthermore, the understanding of IL-17 axis pathogenic role in pSS may be of interest for therapeutic purposes as a variety of compounds targeting IL-17, IL-17 receptor and other related cytokines and transcription factors involved in Th17 cell commitment are under intense investigation. The aim of this review article is to provide an overview of current knowledge in IL-17/Th17 cells in pSS and discuss their potential therapeutic targeting in this disease.
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Affiliation(s)
- Alessia Alunno
- Rheumatology Unit, Department of Medicine, University of Perugia, Italy
| | - Francesco Carubbi
- Rheumatology Unit, Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, Italy
| | - Elena Bartoloni
- Rheumatology Unit, Department of Medicine, University of Perugia, Italy
| | - Onelia Bistoni
- Rheumatology Unit, Department of Medicine, University of Perugia, Italy
| | - Sara Caterbi
- Rheumatology Unit, Department of Medicine, University of Perugia, Italy
| | - Paola Cipriani
- Rheumatology Unit, Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, Italy
| | - Roberto Giacomelli
- Rheumatology Unit, Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, Italy
| | - Roberto Gerli
- Rheumatology Unit, Department of Medicine, University of Perugia, Italy.
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Peng L, Ma W, Yi F, Yang YJ, Lin W, Chen H, Zhang X, Zhang LH, Zhang F, Du Q. MicroRNA Profiling in Chinese Patients with Primary Sjögren Syndrome Reveals Elevated miRNA-181a in Peripheral Blood Mononuclear Cells. J Rheumatol 2014; 41:2208-13. [DOI: 10.3899/jrheum.131154] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Objective.Characterized by chronic inflammation, dysfunction of exocrine glands, and systemic autoimmunity, primary Sjögren syndrome (pSS) is a common autoimmune disease in elderly women. Our study was performed to explore the potential involvement of microRNA (miRNA) in Chinese patients with pSS.Methods.Using microarrays, miRNA expression in peripheral blood mononuclear cells (PBMC) was profiled in 4 female patients with pSS and 3 healthy participants, followed by a large-scale study of 33 patients and 10 healthy individuals. Compared to the healthy participants, 202 miRNA were upregulated and 180 were downregulated in the patients with pSS. To confirm this finding, a set of regulated miRNA was further examined in a large patient group, using quantitative reverse transcriptase-PCR assays.Results.MiR-181a was the miRNA that most profoundly differed between patients with pSS and healthy individuals; however, similar miRNA-181a expression profiles were found in groups with different disease phenotypes. Together, these observations suggested that an elevated miRNA-181a level is a general phenomenon in Chinese patients with pSS.Conclusion.In addition to the elevated miR-181a levels, our study led to the speculation that elevated miR-181a levels in the PBMC of these patients compromise the maturation of B cells, enabling them to recognize and attack autoantigens and resulting in disease phenotypes. In addition to the regulation of human miRNA, many virus-derived miRNA were unexpectedly upregulated in the patients with pSS, suggesting that viral infection of PBMC plays a role in this disease.
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Coursey TG, de Paiva CS. Managing Sjögren's Syndrome and non-Sjögren Syndrome dry eye with anti-inflammatory therapy. Clin Ophthalmol 2014; 8:1447-58. [PMID: 25120351 PMCID: PMC4128848 DOI: 10.2147/opth.s35685] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Dry eye from Sjögren’s syndrome is a multifactorial disease that results in dysfunction of the lacrimal functional unit. Studies have shown changes in tear composition, including inflammatory cytokines, chemokines, and metalloproteinase. T-lymphocytes have been shown to increase in the conjunctiva and lacrimal glands in patient and animal models. This inflammation is in part responsible for the pathogenesis of the disease, which results in symptoms of eye irritation, ocular surface epithelial disease, and loss of corneal barrier function. There are a number of anti-inflammatory approaches for treating this disease. The current study reviews details of immune response and anti–inflammatory therapies used to control this disease.
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Affiliation(s)
- Terry G Coursey
- Cullen Eye Institute, Baylor College of Medicine, Houston, TX, USA
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Martel C, Jauberteau MO, Vidal E, Fauchais AL. Physiopathologie du syndrome de Gougerot-Sjögren primitif. Rev Med Interne 2014; 35:524-30. [DOI: 10.1016/j.revmed.2013.12.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2012] [Revised: 09/01/2013] [Accepted: 12/02/2013] [Indexed: 02/07/2023]
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Ciccia F, Guggino G, Rizzo A, Alessandro R, Carubbi F, Giardina A, Cipriani P, Ferrante A, Cannizzaro A, Giacomelli R, Triolo G. Rituximab modulates IL-17 expression in the salivary glands of patients with primary Sjögren's syndrome. Rheumatology (Oxford) 2014; 53:1313-20. [PMID: 24602921 DOI: 10.1093/rheumatology/keu004] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
OBJECTIVE The aim of this study was to evaluate the role of rituximab (RTX) in modulating the expression of the IL-17/IL-23 pathway in the salivary glands (SGs) of patients with primary SS (pSS). METHODS Consecutive SG biopsies were obtained from 15 patients with pSS before and after 1 year of RTX therapy. The SG expression of IL-17, IL-23p19 and p-STAT3 was evaluated by immunohistochemistry at baseline and after RTX therapy. The role of mast cells in pSS patients in modulating the Th17 response and the immunologic effect of RTX on mast cells were also studied in in vitro experiments. RESULTS IL-17 was overexpressed in the SGs of patients with pSS mainly by infiltrating T cells and mast cells. After RTX therapy, the SG expression of IL-17, but not of IL-23p19 and p-STAT3, was significantly reduced and was accompanied by the depletion of tissue mast cells. In in vitro experiments with heterologous peripheral lymphocytes RTX significantly induced the apoptosis of isolated mast cells. Finally, mast cells isolated from peripheral blood mononuclear cells of pSS patients in vitro significantly increased Th17 lymphocytes. CONCLUSION RTX acts on pSS patients by globally reducing the expression of IL-17 and specifically inducing a pronounced apoptotic depletion of mast cells.
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Affiliation(s)
- Francesco Ciccia
- Dipartimento Biomedico di Medicina Interna e Specialistiche, Azienda Ospedaliera Ospedali Riuniti Villa Sofia-Cervello, Sezione di Anatomia Patologica, Dipartimento di Biopatologia e Biotecnologie Mediche e Forensi, Università di Palermo, Palermo and Dipartimento di Medicina Interna e Salute pubblica, Sezione di Reumatologia, Università di L'Aquila, L'Aquila, Italy
| | - Giuliana Guggino
- Dipartimento Biomedico di Medicina Interna e Specialistiche, Azienda Ospedaliera Ospedali Riuniti Villa Sofia-Cervello, Sezione di Anatomia Patologica, Dipartimento di Biopatologia e Biotecnologie Mediche e Forensi, Università di Palermo, Palermo and Dipartimento di Medicina Interna e Salute pubblica, Sezione di Reumatologia, Università di L'Aquila, L'Aquila, Italy
| | - Aroldo Rizzo
- Dipartimento Biomedico di Medicina Interna e Specialistiche, Azienda Ospedaliera Ospedali Riuniti Villa Sofia-Cervello, Sezione di Anatomia Patologica, Dipartimento di Biopatologia e Biotecnologie Mediche e Forensi, Università di Palermo, Palermo and Dipartimento di Medicina Interna e Salute pubblica, Sezione di Reumatologia, Università di L'Aquila, L'Aquila, Italy
| | - Riccardo Alessandro
- Dipartimento Biomedico di Medicina Interna e Specialistiche, Azienda Ospedaliera Ospedali Riuniti Villa Sofia-Cervello, Sezione di Anatomia Patologica, Dipartimento di Biopatologia e Biotecnologie Mediche e Forensi, Università di Palermo, Palermo and Dipartimento di Medicina Interna e Salute pubblica, Sezione di Reumatologia, Università di L'Aquila, L'Aquila, Italy
| | - Francesco Carubbi
- Dipartimento Biomedico di Medicina Interna e Specialistiche, Azienda Ospedaliera Ospedali Riuniti Villa Sofia-Cervello, Sezione di Anatomia Patologica, Dipartimento di Biopatologia e Biotecnologie Mediche e Forensi, Università di Palermo, Palermo and Dipartimento di Medicina Interna e Salute pubblica, Sezione di Reumatologia, Università di L'Aquila, L'Aquila, Italy
| | - AnnaRita Giardina
- Dipartimento Biomedico di Medicina Interna e Specialistiche, Azienda Ospedaliera Ospedali Riuniti Villa Sofia-Cervello, Sezione di Anatomia Patologica, Dipartimento di Biopatologia e Biotecnologie Mediche e Forensi, Università di Palermo, Palermo and Dipartimento di Medicina Interna e Salute pubblica, Sezione di Reumatologia, Università di L'Aquila, L'Aquila, Italy
| | - Paola Cipriani
- Dipartimento Biomedico di Medicina Interna e Specialistiche, Azienda Ospedaliera Ospedali Riuniti Villa Sofia-Cervello, Sezione di Anatomia Patologica, Dipartimento di Biopatologia e Biotecnologie Mediche e Forensi, Università di Palermo, Palermo and Dipartimento di Medicina Interna e Salute pubblica, Sezione di Reumatologia, Università di L'Aquila, L'Aquila, Italy
| | - Angelo Ferrante
- Dipartimento Biomedico di Medicina Interna e Specialistiche, Azienda Ospedaliera Ospedali Riuniti Villa Sofia-Cervello, Sezione di Anatomia Patologica, Dipartimento di Biopatologia e Biotecnologie Mediche e Forensi, Università di Palermo, Palermo and Dipartimento di Medicina Interna e Salute pubblica, Sezione di Reumatologia, Università di L'Aquila, L'Aquila, Italy
| | - Alessandra Cannizzaro
- Dipartimento Biomedico di Medicina Interna e Specialistiche, Azienda Ospedaliera Ospedali Riuniti Villa Sofia-Cervello, Sezione di Anatomia Patologica, Dipartimento di Biopatologia e Biotecnologie Mediche e Forensi, Università di Palermo, Palermo and Dipartimento di Medicina Interna e Salute pubblica, Sezione di Reumatologia, Università di L'Aquila, L'Aquila, Italy
| | - Roberto Giacomelli
- Dipartimento Biomedico di Medicina Interna e Specialistiche, Azienda Ospedaliera Ospedali Riuniti Villa Sofia-Cervello, Sezione di Anatomia Patologica, Dipartimento di Biopatologia e Biotecnologie Mediche e Forensi, Università di Palermo, Palermo and Dipartimento di Medicina Interna e Salute pubblica, Sezione di Reumatologia, Università di L'Aquila, L'Aquila, Italy
| | - Giovanni Triolo
- Dipartimento Biomedico di Medicina Interna e Specialistiche, Azienda Ospedaliera Ospedali Riuniti Villa Sofia-Cervello, Sezione di Anatomia Patologica, Dipartimento di Biopatologia e Biotecnologie Mediche e Forensi, Università di Palermo, Palermo and Dipartimento di Medicina Interna e Salute pubblica, Sezione di Reumatologia, Università di L'Aquila, L'Aquila, Italy.
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Kurata S, Osaki T, Yonezawa H, Arae K, Taguchi H, Kamiya S. Role of IL-17A and IL-10 in the antigen induced inflammation model by Mycoplasma pneumoniae. BMC Microbiol 2014; 14:156. [PMID: 24928272 PMCID: PMC4074139 DOI: 10.1186/1471-2180-14-156] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Accepted: 06/06/2014] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Mycoplasma pneumoniae is one of the causative organisms of community-acquired pneumonia which is found commonly in younger patients. Extrapulmonary complications similar to autoimmune disease are caused by M. pneumoniae following the initial infection. The mechanism and pathology of onset is not clear, but it is considered that excessive host immunoreactions play a part in the onset of mycoplasmal pneumonia and its extrapulmonary complications. In this study, we investigated the participation of the immune response, excluding the participation of Th1 and Th2 which has previously been investigated. RESULTS In this study, the host immune response of an antigen induced inflammation model using SPF mice repeatedly sensitized with M. pneumoniae antigens was analyzed. The specificity of M. pneumoniae antigens in the Th17 response of murine lymphocytes in vitro was also examined. Frequent and concentrated sensitization induced exacerbation of lung inflammation immunologically and pathologically, and evoked intrapulmonary IL-17A and IL-10 production. M. pneumoniae antigen stimulation induced proliferation of mouse lymphocytes and caused production of IL-17A and IL-10. In addition, it was shown that IL-17A and IL-10 production was increased in the presence of IL-6 and TGF-β1. CONCLUSIONS It was shown that M. pneumoniae antigens induced potent immunoreaction and enhanced the Th17 cell response both in vivo and in vitro, and that both Treg and IL-10 are involved in the suppression of IL-17A production. This raises the possibility that breakdown of the immune balance may be part of the process leading to subsequent development of extrapulmonary mycoplasmal pneumonia.
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Affiliation(s)
- Satoshi Kurata
- Department of Infectious Diseases, Kyorin University School of Medicine, Shinkawa 6-20-2, Mitaka, Tokyo 181-8611, Japan
| | - Takako Osaki
- Department of Infectious Diseases, Kyorin University School of Medicine, Shinkawa 6-20-2, Mitaka, Tokyo 181-8611, Japan
| | - Hideo Yonezawa
- Department of Infectious Diseases, Kyorin University School of Medicine, Shinkawa 6-20-2, Mitaka, Tokyo 181-8611, Japan
| | - Ken Arae
- Department of Immunology, Faculty of Health Sciences, Kyorin University, Miyashitacho 476, Hachioji, Tokyo 192-8508, Japan
| | - Haruhiko Taguchi
- Department of Immunology, Faculty of Health Sciences, Kyorin University, Miyashitacho 476, Hachioji, Tokyo 192-8508, Japan
| | - Shigeru Kamiya
- Department of Infectious Diseases, Kyorin University School of Medicine, Shinkawa 6-20-2, Mitaka, Tokyo 181-8611, Japan
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Alunno A, Carubbi F, Bistoni O, Caterbi S, Bartoloni E, Bigerna B, Pacini R, Beghelli D, Cipriani P, Giacomelli R, Gerli R. CD4−CD8− T-cells in primary Sjögren's syndrome: Association with the extent of glandular involvement. J Autoimmun 2014; 51:38-43. [DOI: 10.1016/j.jaut.2014.01.030] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2014] [Accepted: 01/06/2014] [Indexed: 01/26/2023]
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Itoi S, Tanemura A, Tani M, Kitaba S, Terao M, Murota H, Oiso N, Katayama I. Immunohistochemical Analysis of Interleukin-17 Producing T Helper Cells and Regulatory T Cells Infiltration in Annular Erythema Associated with Sjögren's Syndrome. Ann Dermatol 2014; 26:203-8. [PMID: 24882975 PMCID: PMC4037673 DOI: 10.5021/ad.2014.26.2.203] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2012] [Revised: 03/11/2013] [Accepted: 04/22/2013] [Indexed: 11/22/2022] Open
Abstract
Background Peculiar erythema known as annular erythema associated with Sjögren's syndrome (AESS) can be differentiated from autoimmune annular erythema and subacute cutaneous lupus erythematosus, both clinically and histologically. However, there are no detailed investigations on immune competent cells infiltration. Objective Preferential infiltration of interleukin-17-producing T helper (Th17) cells and regulatory T (Treg) cells into the labial salivary gland is reported to play a role in maintaining mucoepithelitis in patients with Sjögren's syndrome. In this study, we evaluated Th17 and Treg cell infiltration into the lesional skin of AESS. Methods We analyzed the numbers and infiltration patterns of Th17 and FoxP3 (+) Treg cells in seven cases of AESS using immunohistochemistry. Seven patients with systemic lupus erythematosus (SLE), atopic dermatitis (AD) and psoriasis vulgaris (PV), which are representatives of Th17 cell-involved skin disorders, were enrolled as disease controls. Results Periappendageal and epidermal changes, such as follicular plugging and liquefaction, were evident in the annular erythema of SLE, not AESS, tissue samples. In AESS tissue samples, dense perivascular and periappendageal infiltration of lymph cells was observed in the middle-to-deep dermis, as previously described, in contrast to the superficial infiltration pattern observed in both AD and PV samples. While the total number of infiltrated lymphocytes was similar between AESS and SLE tissue samples, Th17 cells were found to be preferentially infiltrated in the middle-to-deep dermis in AESS samples. Conclusion These results suggest that an increased number and distribution of infiltration of Th17 cells is a preferential feature of AESS, rather than a characteristic feature of annular erythema of SLE.
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Affiliation(s)
- Saori Itoi
- Department of Dermatology Integrated Medicine, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Atsushi Tanemura
- Department of Dermatology Integrated Medicine, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Mamori Tani
- Department of Dermatology Integrated Medicine, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Shun Kitaba
- Department of Dermatology Integrated Medicine, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Mika Terao
- Department of Dermatology Integrated Medicine, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Hiroyuki Murota
- Department of Dermatology Integrated Medicine, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Naoki Oiso
- Department of Dermatology, Kinki University Faculty of Medicine, Osaka, Japan
| | - Ichiro Katayama
- Department of Dermatology Integrated Medicine, Graduate School of Medicine, Osaka University, Osaka, Japan
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Cortez VS, Fuchs A, Cella M, Gilfillan S, Colonna M. Cutting edge: Salivary gland NK cells develop independently of Nfil3 in steady-state. THE JOURNAL OF IMMUNOLOGY 2014; 192:4487-91. [PMID: 24740507 DOI: 10.4049/jimmunol.1303469] [Citation(s) in RCA: 139] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Nfil3 is viewed as an obligate transcription factor for NK cell development. However, mouse CMV (MCMV) infection recently was shown to bypass the requirement for Nfil3 by inducing the appearance of NK cells that express the MCMV-specific receptor Ly49H. Thus, signals transmitted by Ly49H and proinflammatory cytokines are sufficient to promote NK cell differentiation in the absence of Nfil3. In this study, we report that salivary gland (SG) NK cells develop in an Nfil3-independent fashion in the steady-state in the absence of MCMV or any infection. Moreover, we show that SG NK cells have an integrin profile reminiscent of tissue-resident lymphocytes and express TRAIL for killing target cells. These results demonstrate that SG NK cells, although related to conventional NK cells, are a distinct subset of innate lymphoid cells that deviates from the conventional developmental pathway, perhaps under the influence of tissue-specific factors.
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Affiliation(s)
- Victor S Cortez
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110
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Ciccia F, Guggino G, Giardina A, Ferrante A, Carrubbi F, Giacomelli R, Triolo G. The role of innate and lymphoid IL-22-producing cells in the immunopathology of primary Sjögren's syndrome. Expert Rev Clin Immunol 2014; 10:533-41. [PMID: 24490899 DOI: 10.1586/1744666x.2014.884461] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
In primary Sjögren's syndrome (pSS) a complex of interconnections between epithelial barrier, innate and adaptive immunity occurs. IL-22 is a pleiotropic cytokine that in pSS may be placed at the intersection of the adaptive and innate branches of immunity. Some evidence suggests that, in pSS, IL-22 may play a prominent pro-inflammatory role driving the early phase of tissue and systemic inflammation and participating in the self-perpetuation of disease. Despite contradictory data in literature about the role of NK cells in pSS, recent data also suggest an important contribution of this subset of cells of the innate immune system in the development and perpetuation of inflammation. Here, we discuss the role of IL-22 in the pathogenesis of pSS and in epithelial barrier function.
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Affiliation(s)
- Francesco Ciccia
- Dipartimento Biomedico di Medicina Interna e Specialistica, Università degli Studi di Palermo Palermo, Italy
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131
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Donate A, Voigt A, Nguyen CQ. The value of animal models to study immunopathology of primary human Sjögren's syndrome symptoms. Expert Rev Clin Immunol 2014; 10:469-81. [PMID: 24506531 PMCID: PMC5769146 DOI: 10.1586/1744666x.2014.883920] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Sjögren's syndrome (SjS) is a complex chronic autoimmune disease of multifactorial etiology that results in eventual loss of secretory function in the exocrine glands. The challenges towards finding a therapeutic prevention or treatment for SjS are due primarily to a lack of understanding in the pathophysiological and clinical progression of the disease. In order to circumnavigate this problem, there is a need for appropriate animal models that resemble the major phenotypes of human SjS and deliver a clear underlying biological or molecular mechanism capable of defining various aspects for the disease. Here, we present an overview of SjS mouse models that are providing insight into the autoimmune process of SjS and advance our focus on potential diagnostic and therapeutic targets.
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Affiliation(s)
- Amy Donate
- Department of Infectious Diseases and Pathology, University of Florida College of Veterinary Medicine, 2015 SW 16 Ave, Gainesville, Florida 32611, USA
| | - Alexandria Voigt
- Department of Infectious Diseases and Pathology, University of Florida College of Veterinary Medicine, 2015 SW 16 Ave, Gainesville, Florida 32611, USA
| | - Cuong Q. Nguyen
- Department of Infectious Diseases and Pathology, University of Florida College of Veterinary Medicine, 2015 SW 16 Ave, Gainesville, Florida 32611, USA
- Center for Orphan Autoimmune Disorders, University of Florida College of Dentistry, 1600 SW Archer Rd, Gainesville, Florida 32610, USA
- Department of Oral Biology, University of Florida College of Dentistry, 1600 SW Archer Rd, Gainesville, Florida 32610, USA
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132
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Mongini PKA, Kramer JM, Ishikawa TO, Herschman H, Esposito D. Candidate chromosome 1 disease susceptibility genes for Sjogren's syndrome xerostomia are narrowed by novel NOD.B10 congenic mice. Clin Immunol 2014; 153:79-90. [PMID: 24685748 DOI: 10.1016/j.clim.2014.03.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Revised: 03/18/2014] [Accepted: 03/19/2014] [Indexed: 12/16/2022]
Abstract
Sjogren's syndrome (SS) is characterized by salivary gland leukocytic infiltrates and impaired salivation (xerostomia). Cox-2 (Ptgs2) is located on chromosome 1 within the span of the Aec2 region. In an attempt to demonstrate that COX-2 drives antibody-dependent hyposalivation, NOD.B10 congenic mice bearing a Cox-2flox gene were generated. A congenic line with non-NOD alleles in Cox-2-flanking genes failed manifest xerostomia. Further backcrossing yielded disease-susceptible NOD.B10 Cox-2flox lines; fine genetic mapping determined that critical Aec2 genes lie within a 1.56 to 2.17Mb span of DNA downstream of Cox-2. Bioinformatics analysis revealed that susceptible and non-susceptible lines exhibit non-synonymous coding SNPs in 8 protein-encoding genes of this region, thereby better delineating candidate Aec2 alleles needed for SS xerostomia.
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Affiliation(s)
- Patricia K A Mongini
- The Feinstein Institute for Medical Research, North Shore-Long Island Jewish Health System, 350 Community Drive, Manhasset, NY 11030, USA.
| | - Jill M Kramer
- The Feinstein Institute for Medical Research, North Shore-Long Island Jewish Health System, 350 Community Drive, Manhasset, NY 11030, USA.
| | - Tomo-O Ishikawa
- David Geffen School of Medicine at UCLA, 341 Boyer Hall (MBI), 611 Charles E. Young Drive East, Los Angeles, CA 90095, USA.
| | - Harvey Herschman
- David Geffen School of Medicine at UCLA, 341 Boyer Hall (MBI), 611 Charles E. Young Drive East, Los Angeles, CA 90095, USA.
| | - Donna Esposito
- Charles River Laboratories, Genetic Testing Services, 185 Jordan Road, Troy, NY 12180, USA.
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Lin X, Rui K, Deng J, Tian J, Wang X, Wang S, Ko KH, Jiao Z, Chan VSF, Lau CS, Cao X, Lu L. Th17 cells play a critical role in the development of experimental Sjögren's syndrome. Ann Rheum Dis 2014; 74:1302-10. [PMID: 24573745 DOI: 10.1136/annrheumdis-2013-204584] [Citation(s) in RCA: 139] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2013] [Accepted: 02/16/2014] [Indexed: 12/31/2022]
Abstract
OBJECTIVE Although Th17 cells have been increasingly recognised as an important effector in various autoimmune diseases, their function in the pathogenesis of Sjögren's syndrome (SS) remains largely uncharacterised. This study aims to determine the role of Th17 cells in the development of experimental SS (ESS). METHODS The ESS was induced in wildtype and IL-17A knockout (IL-17 KO) C57BL/6 mice immunised with salivary glands (SG) proteins. Phenotypic analysis of immune cells in the draining cervical lymph nodes (CLN) and SG was performed by flow cytometry and immunofluorescence microscopy. To determine the role of Th17 cells in ESS, immunised IL-17 KO mice were adoptively transferred with in vitro-generated Th17 cells and monitored for SS development. The salivary flow rate was measured, whereas inflammatory infiltration and tissue destruction in SG were assessed by histopathology. RESULTS SG protein-immunised mice developed overt SS symptoms with increased Th17 cells detected in CLN and within lymphocytic foci in inflamed SG. Notably, immunised IL-17 KO mice were completely resistant for SS induction, showing no evidence of disease symptoms and histopathological changes in SG. Adoptive transfer of Th17 cells rapidly induced the onset of ESS in immunised IL-17 KO mice with markedly reduced saliva secretion, elevated autoantibody production and pronounced inflammation and tissue damage in SG. CONCLUSIONS Our findings have defined a critical role of Th17 cells in the pathogenesis of ESS. Further studies may validate Th17 cell as a potential target for treating SS.
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Affiliation(s)
- Xiang Lin
- Department of Pathology and Center of Infection and Immunology, Shenzhen Institute of Research and Innovation, The University of Hong Kong, Hong Kong
| | - Ke Rui
- Department of Immunology, School of Medical Science and Laboratory Medicine, Jiangsu University, Zhenjiang, China
| | - Jun Deng
- Department of Pathology and Center of Infection and Immunology, Shenzhen Institute of Research and Innovation, The University of Hong Kong, Hong Kong
| | - Jie Tian
- Department of Immunology, School of Medical Science and Laboratory Medicine, Jiangsu University, Zhenjiang, China
| | - Xiaohui Wang
- Department of Pathology and Center of Infection and Immunology, Shenzhen Institute of Research and Innovation, The University of Hong Kong, Hong Kong
| | - Shengjun Wang
- Department of Immunology, School of Medical Science and Laboratory Medicine, Jiangsu University, Zhenjiang, China
| | - King-Hung Ko
- Department of Pathology and Center of Infection and Immunology, Shenzhen Institute of Research and Innovation, The University of Hong Kong, Hong Kong
| | - Zhijun Jiao
- Zhenjiang Key Laboratory of Medical Immunology, Department of Laboratory Medicine, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | | | - Chak Sing Lau
- Department of Medicine, The University of Hong Kong, Hong Kong
| | - Xuetao Cao
- National Key Laboratory of Medical Immunology & Institute of Immunology, Second Military Medical University, Shanghai, China
| | - Liwei Lu
- Department of Pathology and Center of Infection and Immunology, Shenzhen Institute of Research and Innovation, The University of Hong Kong, Hong Kong Department of Immunology, School of Medical Science and Laboratory Medicine, Jiangsu University, Zhenjiang, China
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Yin H, Kosa P, Liu X, Swaim WD, Lai Z, Cabrera-Perez J, Di Pasquale G, Ambudkar IS, Bugge TH, Chiorini JA. Matriptase deletion initiates a Sjögren's syndrome-like disease in mice. PLoS One 2014; 9:e82852. [PMID: 24551030 PMCID: PMC3923742 DOI: 10.1371/journal.pone.0082852] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2013] [Accepted: 10/28/2013] [Indexed: 11/24/2022] Open
Abstract
Objective The objective of this study was to determine the effect of epithelial barrier disruption, caused by deficiency of the membrane-anchored serine protease, matriptase, on salivary gland function and the induction of autoimmunity in an animal model. Methods Embryonic and acute ablation of matriptase expression in the salivary glands of mice was induced, leading to decreased epithelial barrier function. Mice were characterized for secretory epithelial function and the induction of autoimmunity including salivary and lacrimal gland dysfunction, lymphocytic infiltration, serum anti-Ro/SSA, anti-La/SSB and antinuclear antibodies. Salivary glands immune activation/regulation, barrier function as well as tight junction proteins expression also were determined. Expression of matriptase in minor salivary gland biopsies was compared among pSS patients and healthy volunteers. Results Embryonic ablation of matriptase expression in mice resulted in the loss of secretory epithelial cell function and the induction of autoimmunity similar to that observed in primary Sjögren’s syndrome. Phenotypic changes included exocrine gland dysfunction, lymphocytic infiltrates, production of Sjögren’s syndrome-specific autoantibodies, and overall activation of the immune system. Acute ablation of matriptase expression resulted in significant salivary gland dysfunction in the absence of overt immune activation. Analysis of the salivary glands indicates a loss of electrical potential across the epithelial layer as well as altered distribution of a tight junction protein. Moreover, a significant decrease in matriptase gene expression was detected in the minor salivary glands of pSS patients compared with healthy volunteers. Conclusions Our findings demonstrate that local impairment of epithelial barrier function can lead to loss of exocrine gland dysfunction in the absence of inflammation while systemic deletion can induce a primary Sjögren’s syndrome like phenotype with autoimmunity and loss of gland function.
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Affiliation(s)
- Hongen Yin
- Molecular Physiology and Therapeutics Branch, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, Maryland, United States of America
- * E-mail: (JAC); (HY)
| | - Peter Kosa
- Oral and Pharyngeal Cancer Branch, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Xibao Liu
- Molecular Physiology and Therapeutics Branch, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, Maryland, United States of America
| | - William D. Swaim
- Molecular Physiology and Therapeutics Branch, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Zhennan Lai
- Molecular Physiology and Therapeutics Branch, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Javier Cabrera-Perez
- Molecular Physiology and Therapeutics Branch, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Giovanni Di Pasquale
- Molecular Physiology and Therapeutics Branch, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Indu S. Ambudkar
- Molecular Physiology and Therapeutics Branch, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Thomas H. Bugge
- Oral and Pharyngeal Cancer Branch, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, Maryland, United States of America
| | - John A. Chiorini
- Molecular Physiology and Therapeutics Branch, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, Maryland, United States of America
- * E-mail: (JAC); (HY)
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Rusakiewicz S, Nocturne G, Lazure T, Semeraro M, Flament C, Caillat-Zucman S, Sène D, Delahaye N, Vivier E, Chaba K, Poirier-Colame V, Nordmark G, Eloranta ML, Eriksson P, Theander E, Forsblad-d'Elia H, Omdal R, Wahren-Herlenius M, Jonsson R, Rönnblom L, Nititham J, Taylor KE, Lessard CJ, Sivils KLM, Gottenberg JE, Criswell LA, Miceli-Richard C, Zitvogel L, Mariette X. NCR3/NKp30 contributes to pathogenesis in primary Sjogren's syndrome. Sci Transl Med 2014; 5:195ra96. [PMID: 23884468 DOI: 10.1126/scitranslmed.3005727] [Citation(s) in RCA: 87] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Primary Sjögren's syndrome (pSS) is a chronic autoimmune disease characterized by a lymphocytic exocrinopathy. However, patients often have evidence of systemic autoimmunity, and they are at markedly increased risk for the development of non- Hodgkin's lymphoma. Similar to other autoimmune disorders, a strong interferon (IFN) signature is present among subsets of pSS patients, although the precise etiology remains uncertain. NCR3/NKp30 is a natural killer (NK)-specific activating receptor regulating the cross talk between NK and dendritic cells and type II IFN secretion. We performed a case-control study of genetic polymorphisms of the NCR3/NKp30 gene and found that rs11575837 (G>A) residing in the promoter was associated with reduced gene transcription and function as well as protection to pSS. We also demonstrated that circulating levels of NCR3/NKp30 were significantly increased among pSS patients compared with controls and correlated with higher NCR3/NKp30 but not CD16-dependent IFN-γ secretion by NK cells. Excess accumulation of NK cells in minor salivary glands correlated with the severity of the exocrinopathy. B7H6, the ligand of NKp30, was expressed by salivary epithelial cells. These findings suggest that NK cells may promote an NKp30-dependent inflammatory state in salivary glands and that blockade of the B7H6/NKp30 axis could be clinically relevant in pSS.
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136
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Fei Y, Zhang W, Lin D, Wu C, Li M, Zhao Y, Zeng X, Zhang F. Clinical parameter and Th17 related to lymphocytes infiltrating degree of labial salivary gland in primary Sjögren's syndrome. Clin Rheumatol 2014; 33:523-9. [PMID: 24420723 DOI: 10.1007/s10067-013-2476-z] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2013] [Revised: 12/21/2013] [Accepted: 12/23/2013] [Indexed: 12/11/2022]
Abstract
The aim of this study is to investigate the correlation between clinical parameter, Th17, and degree of lymphocytes infiltrating in labial salivary gland in primary Sjögren's syndrome (pSS). Minor labial gland biopsies from a cohort of 103 patients fulfilling the American-European consensus classification criteria for pSS were examined and grouped into G1 to G3 according to infiltration degree of lymphocytes in labial salivary glands and formation of germinal center. IL-17 level and Th17 proportion of peripheral blood samples in 54 patients with pSS were analyzed simultaneously. Among the 103 labial salivary glands samples, there were 10.5 % of G1, 68.4 % of G2, and 21.1 % of G3, respectively. Some clinical parameters were markedly associated with the degree of inflammatory cells infiltration in labial glands, including white blood cell counts, lymphocytes, liver enzymes, and pulmonary function diffusion rates. The average optical density of IL-17 correlated with the severity of lymphocytic infiltration in the labial glands, while the proportion of Th17 cells in the peripheral blood mononuclear cells showed no significant relationship to the degree of lymphocytic infiltration in the labial glands from the SS patients. IL-17A mRNA levels in peripheral blood mononuclear cells from pSS patients before immunosuppressant treatment were significantly higher than that in patients after immunosuppressant treatment. The degree of inflammatory cells infiltration in labial glands was related to some clinical manifestations in pSS. IL-17 may play a role in the pathogenesis of lymphocytic infiltration in the labial glands. Immunosuppressive treatment might affect Th17 cells.
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Affiliation(s)
- Yunyun Fei
- Department of Rheumatology, Peking Union Medical College Hospital, 100032, Beijing, China
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137
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Gong YZ, Nititham J, Taylor K, Miceli-Richard C, Sordet C, Wachsmann D, Bahram S, Georgel P, Criswell LA, Sibilia J, Mariette X, Alsaleh G, Gottenberg JE. Differentiation of follicular helper T cells by salivary gland epithelial cells in primary Sjögren's syndrome. J Autoimmun 2014; 51:57-66. [PMID: 24411167 DOI: 10.1016/j.jaut.2013.11.003] [Citation(s) in RCA: 98] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2013] [Revised: 11/07/2013] [Accepted: 11/17/2013] [Indexed: 01/17/2023]
Abstract
Follicular helper T cells (Tfh), which play a pivotal role in B cell activation and differentiation in lymphoid structures, secrete IL-21 whose augmented secretion is a hallmark of several autoimmune diseases. To decipher the cellular and molecular interactions occurring in salivary glands of patients suffering from primary Sjögren's syndrome (pSS), we investigated whether salivary gland epithelial cells (SGECs) were capable to induce Tfh differentiation. Co-cultures of naïve CD4(+) T cells and SGECs from both patients with pSS and controls were performed. Here, we report that IL-6 and ICOSL expression by SGECs contributes to naïve CD4(+) T differentiation into Tfh cells, as evidenced by their acquisition of a specific phenotype, characterized by Bcl-6, ICOS and CXCR5 expression and IL-21 secretion, but also but by their main functional feature: the capacity to enhance B lymphocytes survival. We demonstrated an increase of serum IL-21 with systemic activity. Finally, we analyzed the potential occurrence of a genetic association between IL-21 or IL-21R gene polymorphisms and pSS or elevated IL-21 secretion. This study, which demonstrates a direct induction of Tfh differentiation by SGECs, emphasizes a yet unknown pathogenic role of SGECs and suggests that Tfh and IL-21 might be relevant biomarkers and/or therapeutic targets in primary Sjögren's syndrome.
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Affiliation(s)
- Ya-Zhuo Gong
- Immunorhumatologie moléculaire, INSERM UMR S_1109, Centre de Recherche en Immunologie et Hématologie, Faculté de Médecine, Fédération de Médecine Translationnelle de Strasbourg, Université de Strasbourg, Strasbourg, France; Service de Rhumatologie, Centre National de Référence pour les Maladies Systémiques Autoimmunes Rares, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Joanne Nititham
- University of California San Francisco, Rosalind Russell Medical Research Center for Arthritis, Department of Medicine, 374 Parnassus Avenue, San Francisco, CA 94143, USA
| | - Kim Taylor
- University of California San Francisco, Rosalind Russell Medical Research Center for Arthritis, Department of Medicine, 374 Parnassus Avenue, San Francisco, CA 94143, USA
| | - Corinne Miceli-Richard
- Corinne Miceli-Richard, Xavier Mariette: Université Paris-Sud 11, Rhumatologie, Hôpital Bicêtre, Assistance Publique-Hôpitaux de Paris (AP-HP), Le Kremlin Bicêtre, France
| | - Christelle Sordet
- Immunorhumatologie moléculaire, INSERM UMR S_1109, Centre de Recherche en Immunologie et Hématologie, Faculté de Médecine, Fédération de Médecine Translationnelle de Strasbourg, Université de Strasbourg, Strasbourg, France; Service de Rhumatologie, Centre National de Référence pour les Maladies Systémiques Autoimmunes Rares, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Dominique Wachsmann
- Immunorhumatologie moléculaire, INSERM UMR S_1109, Centre de Recherche en Immunologie et Hématologie, Faculté de Médecine, Fédération de Médecine Translationnelle de Strasbourg, Université de Strasbourg, Strasbourg, France; Service de Rhumatologie, Centre National de Référence pour les Maladies Systémiques Autoimmunes Rares, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Siamak Bahram
- Immunorhumatologie moléculaire, INSERM UMR S_1109, Centre de Recherche en Immunologie et Hématologie, Faculté de Médecine, Fédération de Médecine Translationnelle de Strasbourg, Université de Strasbourg, Strasbourg, France; Service de Rhumatologie, Centre National de Référence pour les Maladies Systémiques Autoimmunes Rares, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Philippe Georgel
- Immunorhumatologie moléculaire, INSERM UMR S_1109, Centre de Recherche en Immunologie et Hématologie, Faculté de Médecine, Fédération de Médecine Translationnelle de Strasbourg, Université de Strasbourg, Strasbourg, France; Service de Rhumatologie, Centre National de Référence pour les Maladies Systémiques Autoimmunes Rares, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Lindsey A Criswell
- University of California San Francisco, Rosalind Russell Medical Research Center for Arthritis, Department of Medicine, 374 Parnassus Avenue, San Francisco, CA 94143, USA
| | - Jean Sibilia
- Immunorhumatologie moléculaire, INSERM UMR S_1109, Centre de Recherche en Immunologie et Hématologie, Faculté de Médecine, Fédération de Médecine Translationnelle de Strasbourg, Université de Strasbourg, Strasbourg, France; Service de Rhumatologie, Centre National de Référence pour les Maladies Systémiques Autoimmunes Rares, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Xavier Mariette
- Corinne Miceli-Richard, Xavier Mariette: Université Paris-Sud 11, Rhumatologie, Hôpital Bicêtre, Assistance Publique-Hôpitaux de Paris (AP-HP), Le Kremlin Bicêtre, France
| | - Ghada Alsaleh
- Immunorhumatologie moléculaire, INSERM UMR S_1109, Centre de Recherche en Immunologie et Hématologie, Faculté de Médecine, Fédération de Médecine Translationnelle de Strasbourg, Université de Strasbourg, Strasbourg, France; Service de Rhumatologie, Centre National de Référence pour les Maladies Systémiques Autoimmunes Rares, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Jacques-Eric Gottenberg
- Immunorhumatologie moléculaire, INSERM UMR S_1109, Centre de Recherche en Immunologie et Hématologie, Faculté de Médecine, Fédération de Médecine Translationnelle de Strasbourg, Université de Strasbourg, Strasbourg, France; Service de Rhumatologie, Centre National de Référence pour les Maladies Systémiques Autoimmunes Rares, Hôpitaux Universitaires de Strasbourg, Strasbourg, France.
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Contreras-Ruiz L, Ghosh-Mitra A, Shatos MA, Dartt DA, Masli S. Modulation of conjunctival goblet cell function by inflammatory cytokines. Mediators Inflamm 2013; 2013:636812. [PMID: 24453426 PMCID: PMC3877636 DOI: 10.1155/2013/636812] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2013] [Accepted: 11/13/2013] [Indexed: 12/21/2022] Open
Abstract
Ocular surface inflammation associated with Sjögren's syndrome is characterized by a loss of secretory function and alteration in numbers of mucin secreting goblet cells. Such changes are a prominent feature of ocular surface inflammatory diseases and are attributed to inflammation; however, the exact effect of the inflammatory cytokines on conjunctival goblet cell function remains largely unknown. In this study, we developed a primary culture of mouse goblet cells from conjunctival tissue and evaluated the effects on their function by inflammatory cytokines detected in the conjunctiva of mouse model of Sjögren's syndrome (Thrombospondin-1 deficient mice). We found that apoptosis of goblet cells was primarily induced by TNF-α and IFN-γ. These two cytokines also inhibited mucin secretion by goblet cells in response to cholinergic stimulation, whereas IL-6 enhanced such secretion. No changes in secretory response were detected in the presence of IL-13 or IL-17. Goblet cells proliferated to varying degrees in response to all the tested cytokines with the greatest response to IL-13 followed by IL-6. Our results therefore reveal that inflammatory cytokines expressed in the conjunctiva during an ocular surface disease directly disrupt conjunctival goblet cell functions, compromising the protective function of tears, thereby contributing to ocular surface damage.
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Affiliation(s)
- L. Contreras-Ruiz
- Department of Ophthalmology, Boston University School of Medicine, Boston, MA 02118, USA
| | - A. Ghosh-Mitra
- Department of Ophthalmology, Harvard Medical School, Schepens Eye Research Institute and Massachusetts Eye and Ear, Boston, MA 02114, USA
| | - M. A. Shatos
- Department of Ophthalmology, Harvard Medical School, Schepens Eye Research Institute and Massachusetts Eye and Ear, Boston, MA 02114, USA
| | - D. A. Dartt
- Department of Ophthalmology, Harvard Medical School, Schepens Eye Research Institute and Massachusetts Eye and Ear, Boston, MA 02114, USA
| | - S. Masli
- Department of Ophthalmology, Boston University School of Medicine, Boston, MA 02118, USA
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139
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Effects of muscarinic acetylcholine 3 receptor(208-227) peptide immunization on autoimmune response in nonobese diabetic mice. Clin Dev Immunol 2013; 2013:485213. [PMID: 24382973 PMCID: PMC3872023 DOI: 10.1155/2013/485213] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2013] [Revised: 11/18/2013] [Accepted: 11/25/2013] [Indexed: 12/15/2022]
Abstract
The second extracellular loop (LFWQYFVGKRTVPPGECFIQFLSEPTITFGTAI, aa 205-237) of muscarinic acetylcholine 3 receptor (M3R) has been reported to be an epitope for autoantibodies generated during certain autoimmune disorders, including Sjögren's syndrome (SS). Autoantibodies against M3R(228-237) have been shown to interfere with the function of M3R. However, few studies have been performed on the M3R(205-227) peptide of the second extracellular loop. In the current study, we sought to investigate the effect of M3R(208-227) peptide immunization on autoimmune response in NOD/LtJ mice. We synthesized the M3R(208-227) peptide and immunized NOD/LtJ mice to investigate whether peptide-specific antibodies could be generated and whether immunization would lead to changes in autoimmune response in NOD/LtJ mice. Our results demonstrate that the secretions of Th-1, Th-2, and Th-17 cytokines are downregulated and lymphocytic infiltration is improved in the salivary glands and lacrimal glands following immunization with M3R(208-227) peptide in NOD/LtJ mice, suggesting that peptide immunotherapy using the M3R(208-227) peptide may represent a potential therapeutic alternative.
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140
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Pflugfelder SC, Corrales RM, de Paiva CS. T helper cytokines in dry eye disease. Exp Eye Res 2013; 117:118-25. [PMID: 24012834 PMCID: PMC3855838 DOI: 10.1016/j.exer.2013.08.013] [Citation(s) in RCA: 118] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2013] [Revised: 08/13/2013] [Accepted: 08/16/2013] [Indexed: 01/28/2023]
Abstract
Dry eye is an inflammatory disease that results from activation of innate inflammatory pathways in resident ocular surface cells, as well as cytokines produced by recruited T helper (Th) cells. Cytokines produced by the infiltrating Th cells alter the normal cytokine balance on the ocular surface and cause ocular surface epithelial pathology. Changes in levels of Th cytokines on the ocular surface have been measured in dry eye and the biological effects of these cytokines have been documented in experimental culture and mouse model systems. The Th2 cytokine IL-13 has a homeostatic role in promoting goblet cell differentiation. In contrast, The Th1 cytokine IFN-γ antagonizes IL-13 and promotes apoptosis and squamous metaplasia of the ocular surface epithelia. The Th17 cytokine, IL-17 promotes corneal epithelial barrier disruption. The ocular surface epithelium expresses receptors to all of these Th cytokines. Therapies that maintain normal IL-13 signaling, or suppress IFN-γ and IL-17 have potential for treating the ocular surface disease of dry eye.
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Affiliation(s)
- Stephen C Pflugfelder
- Ocular Surface Center, Cullen Eye Institute, Department of Ophthalmology, Baylor College of Medicine, 6565 Fannin NC205, Houston, TX 77030, USA.
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141
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Innate immune signaling induces interleukin-7 production from salivary gland cells and accelerates the development of primary Sjögren's syndrome in a mouse model. PLoS One 2013; 8:e77605. [PMID: 24147035 PMCID: PMC3798297 DOI: 10.1371/journal.pone.0077605] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2013] [Accepted: 09/10/2013] [Indexed: 01/04/2023] Open
Abstract
Elevated IL-7 in the target tissues is closely associated with multiple autoimmune disorders, including Sjögren’s syndrome (SS). We recently found that IL-7 plays an essential role in the development and onset of primary SS (pSS) in C57BL/6.NOD-Aec1Aec2 mice, a well-defined mouse model of primary SS. However, environmental signals that cause excessive IL-7 production are not well-characterized. Innate immune signaling plays a critical role in shaping the adaptive immune responses including autoimmune responses. We and others have previously shown that innate immune signaling can induce IL-7 expression in lungs and intestines of C57BL/6 mice. In this study, we characterized the effects of poly I:C, a double-stranded RNA analog and toll-like receptor 3 agonist, on the induction of IL-7 expression in salivary glands and on pSS development. We showed that poly I:C administration to C57BL/6 mice rapidly induced IL-7 expression in the salivary glands in a type 1 IFN- and IFN-γ-dependent manner. Moreover, poly I:C-induced IL-7 contributed to the optimal up-regulation of CXCL9 in the salivary glands, which may subsequently promote recruitment of more IFN-γ-producing T cells. Repeated administration of poly I:C to C57BL/6.NOD-Aec1Aec2 mice accelerated the development of SS-like exocrinopathy, and this effect was abolished by the blockade of IL-7 receptor signaling with a neutralizing antibody. Finally, poly I:C or a combination of IFN-α and IFN-γ induced IL-7 gene expression and protein production in a human salivary gland epithelial cell line. Hence, we demonstrate that IL-7 expression in the salivary gland cells can be induced by poly I:C and delineate a crucial mechanism by which innate immune signals facilitate the development of pSS, which is through induction of IL-7 in the target tissues.
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142
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Jin JO, Kawai T, Cha S, Yu Q. Interleukin-7 enhances the Th1 response to promote the development of Sjögren's syndrome-like autoimmune exocrinopathy in mice. ACTA ACUST UNITED AC 2013; 65:2132-42. [PMID: 23666710 DOI: 10.1002/art.38007] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2012] [Accepted: 04/30/2013] [Indexed: 01/01/2023]
Abstract
OBJECTIVE Although elevated interleukin-7 (IL-7) levels have been reported in patients with primary Sjögren's syndrome (SS), the role of IL-7 in this disease remains unclear. We undertook this study to characterize the previously unexplored role of IL-7 in the development and onset of primary SS using the C57BL/6.NOD-Aec1Aec2 (B6.NOD-Aec) mouse model, which recapitulates human primary SS. METHODS For gain-of-function studies, recombinant IL-7 or control phosphate buffered saline was injected intraperitoneally (IP) into 12-week-old B6.NOD-Aec mice for 8 weeks. For loss-of-function studies, anti-IL-7 receptor α-chain (anti-IL-7Rα) antibody or its isotype control IgG was administered IP into 16-week-old B6.NOD-Aec mice. Salivary flow measurement, histologic and flow cytometric analysis of salivary glands, and serum antinuclear antibody assay were performed to assess various disease parameters. RESULTS Administration of exogenous IL-7 accelerated the development of primary SS, whereas blockade of IL-7Rα signaling almost completely abolished the development of primary SS, based on salivary gland inflammation and apoptosis, autoantibody production, and secretory dysfunction. IL-7 positively regulated interferon-γ (IFNγ)-producing Th1 and CD8+ T cells in the salivary glands without affecting IL-17. Moreover, IL-7 enhanced the expression of CXCR3 ligands in a T cell- and IFNγ-dependent manner. Accordingly, IFNγ induced a human salivary gland epithelial cell line to produce CXCR3 ligands. IL-7 also increased the level of tumor necrosis factor α, another Th1-associated cytokine that can facilitate tissue destruction and inflammation. CONCLUSION IL-7 plays a pivotal pathogenic role in SS, which is underpinned by an enhanced Th1 response and IFNγ/CXCR3 ligand-mediated lymphocyte infiltration of target organs. These results suggest that targeting the IL-7 pathway may be a potential future strategy for preventing and treating SS.
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Affiliation(s)
- Jun-O Jin
- The Forsyth Institute, Cambridge, MA 02142, USA
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143
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Li CL, He J, Li ZG, Zheng LW, Hua H. Effects of total glucosides of paeony for delaying onset of Sjogren's syndrome: an animal study. J Craniomaxillofac Surg 2013; 41:610-5. [PMID: 23333492 DOI: 10.1016/j.jcms.2012.11.042] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2012] [Revised: 11/30/2012] [Accepted: 11/30/2012] [Indexed: 11/16/2022] Open
Abstract
OBJECTIVE To investigate the effectiveness of total glucosides of paeony (TGP) on Sjogren's syndrome (SS) using non-obese diabetic (NOD) mice model. STUDY DESIGN Twenty-seven 8-week-old female NOD mice were assigned into TGP group, hydroxychloroquine (HCQ) group and normal saline (NS) group, receiving corresponding drugs respectively and sacrificed at 24-week-old. Saliva flow rate (SFR), ration of regulatory T cells, level of anti-SSA/SSB, histological changes in submandibular glands (SMG) and microarray analysis were assessed. The data were analyzed using SPSS. RESULTS Compared to NS group, in TGP group, SFR, SMG index and the ration of regulatory T cells were significantly higher, while anti-SSA/SSB and lymphocytic foci were significantly lower. HCQ group demonstrated similar results except SMG index. Altered gene expression was found in 10.71% of TGP and 13.09% of HCQ of the profile. CONCLUSION TGP demonstrated a similar effectiveness as HCQ in delaying the onset of SS-like disease in NOD mice.
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Affiliation(s)
- Chun Lei Li
- Department of Oral Medicine and Traditional Chinese Medicine, Peking University School and Hospital of Stomatology, Beijing, China
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Sohda M, Misumi Y, Tashiro K, Yamazaki M, Saku T, Oda K. Identification of a soluble isoform of human IL-17RA generated by alternative splicing. Cytokine 2013; 64:642-5. [PMID: 24084331 DOI: 10.1016/j.cyto.2013.09.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2013] [Revised: 08/27/2013] [Accepted: 09/06/2013] [Indexed: 12/01/2022]
Abstract
IL-17RA, a member of the interleukin (IL)-17 receptor family, is a single membrane-spanning protein that ubiquitously expressed on the cell surface. IL-17RA transduces IL-17A, IL-17F, and IL-17A/F heterodimer-mediated signals by forming a complex with IL-17RC, and also signals the IL-17E (also known as IL-25) response in combination with IL-17RB (also known as IL-25R). Previously, soluble isoforms of human IL-17RC and IL-17RB have been reported, but the existence of a soluble isoform of human IL-17RA has remained unclear. Here, we report the identification of a soluble isoform of human IL-17RA at the mRNA and protein levels. Reverse transcribed PCR experiments showed that the IL-17RA variant is generated by spliced out of exon 11 encoding the transmembrane region in a variety of human tissues. The soluble IL-17RA isoform was detected in the culture media of human cell lines by Western blotting. The existence of the soluble IL-17RA isoform sheds new light on the regulation of IL-17RA mediated responses.
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Affiliation(s)
- Miwa Sohda
- Division of Oral Biochemistry, Niigata University, Graduate School of Medical and Dental Sciences, 2-5274 Gakkocho-dori, Chuo-ku, Niigata 951-8514, Japan.
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145
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Reciprocal relation between GADD153 and Del-1 in regulation of salivary gland inflammation in Sjögren syndrome. Exp Mol Pathol 2013; 95:288-97. [PMID: 24060278 DOI: 10.1016/j.yexmp.2013.09.002] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Revised: 09/07/2013] [Accepted: 09/13/2013] [Indexed: 11/22/2022]
Abstract
Endoplasmic reticulum (ER) stress response is a pivotal regulator of inflammation and cell death. An integral component of ER stress-induced apoptosis is expression of growth arrest- and DNA damage-inducible protein 153 (GADD153). Further, ER stress response is implicated in leukocyte adhesion and recent studies have discovered endogenous inhibitors of leukocyte adhesion including the developmental endothelial locus-1 (Del-1). Accordingly, we tested the hypothesis that Sjögren's syndrome (SS) is associated with increased salivary gland expression of GADD153 and increased leukocyte infiltration in association with decreased Del-1 thereby contributing to inflammation and cell death. We utilized the non-obese diabetic (NOD) mice, a model of SS-like disease, in association with immunostaining and flow cytometry-based studies. Salivary glands of 14-week-old NOD mice displayed a) increased GADD153 expression, b) marked reduction in Del-1, c) inflammatory cell infiltrates including CD3+ T and CD19+ B lymphocytes as well as M1 and M2 macrophages and d) increased pro-inflammatory interleukin (IL)-17 but reduced anti-inflammatory cytokine, IL-10. These changes were accompanied with disruption of mitochondrial membrane potential and significant increase in apoptosis and necrosis of salivary gland cells of NOD than control mice. Our collective observations suggested that GADD153 directly and/or indirectly through downregulation of Del-1 contributes importantly to salivary gland inflammation and cell death. To establish the relevance of GADD153 and Del-1 for the human condition, lower lip biopsy samples of non-SS subjects and those with a diagnosis of SS were subjected to immunohistochemistry. The results show intense GADD153 immunostaining but marked reduction in Del-1 expression in biopsy samples of SS compared to non-SS subjects. Collectively, the results indicate that GADD153 regulates inflammation and cell death in salivary gland in SS. Further, Del-1 expression likely provides a mechanistic link between increased GADD153 and leukocyte infiltration and accompanying inflammation of salivary gland tissue in this condition.
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146
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Karabiyik A, Peck AB, Nguyen CQ. The important role of T cells and receptor expression in Sjögren's syndrome. Scand J Immunol 2013; 78:157-66. [PMID: 23679844 DOI: 10.1111/sji.12079] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2013] [Accepted: 05/16/2013] [Indexed: 12/17/2022]
Abstract
Sjögren's syndrome (SjS), an autoimmune disease characterized by exocrine gland dysfunction leading to dry mouth and dry eye diseases, is typified by progressive leucocyte infiltrations of the salivary and lacrimal glands. Histologically, these leucocyte infiltrations generally establish periductal aggregates, referred to as lymphocytic foci (LF), which occasionally appear as germinal centre (GC)-like structures. The formation and organization of these LF suggest an important and dynamic role for helper T cells (TH), specifically TH1, TH2 and the recently discovered TH17, in development and onset of clinical SjS, considered a B cell-mediated hypersensitivity type 2 disease. Despite an ever-increasing focus on identifying the underlying aetiology of SjS, defining factors that initiate this autoimmune disease remain a mystery. Thus, determining interactions between infiltrating TH cells and exocrine gland tissue (auto-)antigens represents a fertile research endeavour. This review discusses pathological functions of TH cells in SjS, the current status of TH cell receptor gene rearrangements associated with human and mouse models of SjS and potential future prospects for identifying receptor-autoantigen interactions.
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Affiliation(s)
- A Karabiyik
- Department of Pathology and Infectious Diseases, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA
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147
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Abstract
Systemic lupus erythematosus, Sjögren's syndrome, and dermatomyositis are systemic autoimmune diseases that develop after environmental triggering of genetically susceptible individuals. The precise cellular and molecular mechanisms leading to autoimmune disease, and what factors determine which organs are involved, remain poorly understood. Recent insights into genetic susceptibility now make obvious that environmental triggers often act via cellular pathways containing disease-associated polymorphisms. In the breaking of tolerance, the initiating tissue--including dendritic cells--provides a decisive microenvironment that affects immune-cell differentiation, leading to activation of adaptive immunity. Type 1 interferon produced by innate immune cells has a central role in systemic autoimmunity and activates B cells and T cells. In turn, B-cell-derived autoantibodies stimulate dendritic cells to produce type 1 interferon; thus, a positive feedforward loop is formed that includes both the innate and adaptive systems. New treatments could simultaneously and specifically target several such vital pathways in autoimmunity.
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148
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T helper subsets in Sjögren's syndrome and IgG4-related dacryoadenitis and sialoadenitis: a critical review. J Autoimmun 2013; 51:81-8. [PMID: 23920005 DOI: 10.1016/j.jaut.2013.07.007] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2013] [Accepted: 07/15/2013] [Indexed: 01/13/2023]
Abstract
IgG4-related disease (IgG4-RD) is a systemic disease characterized by the elevation of serum IgG4 and infiltration of IgG4-positive plasma cells in multiple target organs, including the pancreas, kidney, biliary tract and salivary glands. In contrast, Mikulicz's disease (MD) has been considered a subtype of Sjögren's syndrome (SS) based on histopathological similarities. However, it is now recognized that MD is an IgG4-RD distinguishable from SS and called as IgG4-related dacryoadenitis and sialoadenitis (IgG4-DS). Regarding immunological aspects, it is generally accepted that CD4+ T helper (Th) cells play a crucial role in the pathogenesis of SS. Since it is well known that IgG4 is induced by Th2 cytokines such as interleukin (IL)-4 and IL-13, IgG4-DS is speculated to be a unique inflammatory disorder characterized by Th2 immune reactions. However, the involvement of Th cells in the pathogenesis of IgG4-DS remains to be clarified. Exploring the role of Th cell subsets in IgG4-DS is a highly promising field of investigation. In this review, we focus on the selective localization and respective functions of Th cell subsets and discuss the differences between SS and IgG4-DS to clarify the pathogenic mechanisms of these diseases.
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149
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The immune factors involved in the pathogenesis, diagnosis, and treatment of Sjogren's syndrome. Clin Dev Immunol 2013; 2013:160491. [PMID: 23935646 PMCID: PMC3722847 DOI: 10.1155/2013/160491] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2013] [Accepted: 06/20/2013] [Indexed: 02/05/2023]
Abstract
Sjogren's syndrome (SS) is a systemic, autoimmune disorder characterized by salivary insufficiency and lymphocytic infiltration of the exocrine glands. Even though the mechanism of its pathology and progression has been researched ever since its discovery, the roles of different parts of immune system remain inconclusive. There is no straightforward and simple theory for the pathogenesis and diagnosis of Sjogren's syndrome because of the multiple kinds and functions of autoantibodies, changing proportion of different T-lymphocyte subsets with the progression of disease, unsuspected abilities of B lymphocytes discovered recently, crosstalk between cytokines connecting the factors mentioned previously, and genetic predisposition that contributes to the initiation of this disease. On the other hand, the number of significant reports and open-label studies of B-cell depletion therapy showing clinical efficacy in sjogren's syndrome has continued to accumulate, which provides a promising future for the patients. In a word, further elucidation of the role of different components of the immune system will open avenues for better diagnosis and treatment of SS, whose current management is still mainly supportive.
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150
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Ciccia F, Alessandro R, Rodolico V, Guggino G, Raimondo S, Guarnotta C, Giardina A, Sireci G, Campisi G, De Leo G, Triolo G. IL-34 is overexpressed in the inflamed salivary glands of patients with Sjogren's syndrome and is associated with the local expansion of pro-inflammatory CD14(bright)CD16+ monocytes. Rheumatology (Oxford) 2013; 52:1009-1017. [PMID: 23392590 DOI: 10.1093/rheumatology/kes435] [Citation(s) in RCA: 82] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/28/2024] Open
Abstract
OBJECTIVES To investigate the expression of IL-34 in labial salivary glands (LSGs) of patients with primary SS (p-SS) and its role in inducing a pro-inflammatory monocyte phenotype. METHODS LSG biopsies were obtained from 20 patients with p-SS and 10 patients with non-Sjögren's sicca syndrome (n-SS). The expression of IL-34, IL-1β, TNF-α, IL-17 and IL-23 was assessed by real-time PCR. IL-34 expression was also investigated in LSGs by immunohistochemistry. The frequencies of subpopulations of CD14(+) monocytes were evaluated by flow cytometry among isolated mononuclear cells from peripheral blood and salivary glands from both patients and controls. The role of recombinant IL-34 on isolated peripheral blood mononuclear cells was also evaluated. RESULTS IL-34 m-RNA was overexpressed in the inflamed salivary glands of p-SS and associated with increased expression of TNF-α, IL-1β, IL-17 and IL-23p19. The increased expression of IL-34 was confirmed by immunohistochemistry in paraffin-embedded salivary glands from p-SS patients. IL-34 expression was accompanied by the expansion of pro-inflammatory CD14(bright)CD16(+) monocytes in the salivary glands. In vitro stimulation of peripheral blood mononuclear cells with IL-34 induced the expansion of both CD14(+)CD16(-) cells and CD14(bright)CD16(+) cells in p-SS and non-SS subjects. CONCLUSION IL-34 seems to be involved in the pathogenesis of salivary gland inflammation in p-SS.
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Affiliation(s)
- Francesco Ciccia
- Dipartimento Biomedico di Medicina Interna e Specialistica, Sezione di Reumatologia, Università di Palermo, Palermo, Italy
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