1
|
Liu J, Wang J, Zhang Q, Lu F, Cai J. Clinical, Histologic, and Transcriptomic Evaluation of Sequential Fat Grafting for Morphea: A Nonrandomized Controlled Trial. JAMA Dermatol 2024; 160:425-433. [PMID: 38324287 PMCID: PMC11024779 DOI: 10.1001/jamadermatol.2023.5908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 12/01/2023] [Indexed: 02/08/2024]
Abstract
Importance Morphea is a rare disease of unknown etiology without satisfactory treatment for skin sclerosis and soft tissue atrophy. Objective To provide clinical, histologic, and transcriptome evidence of the antisclerotic and regenerative effects of sequential fat grafting with fresh fat and cryopreserved stromal vascular fraction gel (SVF gel) for morphea. Design, Setting, and Participants This single-center, nonrandomized controlled trial was conducted between January 2022 and March 2023 in the Department of Plastic and Reconstructive Surgery of Nanfang Hospital, Southern Medical University and included adult participants with early-onset or late-onset morphea who presented with varying degrees of skin sclerosis and soft tissue defect. Interventions Group 1 received sequential grafting of fresh fat and cryopreserved SVF gel (at 1 and 2 months postoperation). Group 2 received single autologous fat grafting. All patients were included in a 12-month follow-up. Main Outcome and Measures The primary outcome included changes in the modified Localized Scleroderma Skin Severity Index (mLoSSI) and Localized Scleroderma Skin Damage Index (LoSDI) scores as evaluated by 2 independent blinded dermatologists. The histologic and transcriptome changes of morphea skin lesions were also evaluated. Results Of 44 patients (median [IQR] age, 26 [23-33] years; 36 women [81.8%]) enrolled, 24 (54.5%) were assigned to group 1 and 20 (45.5%) to group 2. No serious adverse events were noted. The mean (SD) mLoSSI scores at 12 months showed a 1.6 (1.50) decrease in group 1 and 0.9 (1.46) in group 2 (P = .13), whereas the mean (SD) LoSDI scores at 12 months showed a 4.3 (1.34) decrease in group 1 and 2.1 (1.07) in group 2 (P < .001), indicating that group 1 had more significant improvement in morphea skin damage but not disease activity compared with group 2. Histologic analysis showed improved skin regeneration and reduced skin sclerosis in group 1, whereas skin biopsy specimens of group 2 patients did not show significant change. Transcriptome analysis of skin biopsy specimens from group 1 patients suggested that tumor necrosis factor α signaling via NFκB might contribute to the immunosuppressive and antifibrotic effect of sequential fat grafting. A total of 15 hub genes were captured, among which many associated with morphea pathogenesis were downregulated and validated by immunohistochemistry, such as EDN1, PAI-1, and CTGF. Conclusions and Relevance The results of this nonrandomized trial suggest that sequential fat grafting with fresh fat and cryopreserved SVF gel was safe and its therapeutic effect was superior to that of single autologous fat grafting with improved mLoSSI and LoSDI scores. Histological and transcriptomic changes further support the effectiveness after treatment. Trial Registration Chinese Clinical Trial Registry identifier: ChiCTR2200058003.
Collapse
Affiliation(s)
- Juzi Liu
- Department of Plastic and Reconstructive Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jing Wang
- Department of Plastic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Qian Zhang
- Department of Plastic and Reconstructive Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Feng Lu
- Department of Plastic and Reconstructive Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Junrong Cai
- Department of Plastic and Reconstructive Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| |
Collapse
|
2
|
Shi Z, Liu Z, Wei Y, Zhang R, Deng Y, Li D. The role of dermal fibroblasts in autoimmune skin diseases. Front Immunol 2024; 15:1379490. [PMID: 38545113 PMCID: PMC10965632 DOI: 10.3389/fimmu.2024.1379490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 03/01/2024] [Indexed: 04/18/2024] Open
Abstract
Fibroblasts are an important subset of mesenchymal cells in maintaining skin homeostasis and resisting harmful stimuli. Meanwhile, fibroblasts modulate immune cell function by secreting cytokines, thereby implicating their involvement in various dermatological conditions such as psoriasis, vitiligo, and atopic dermatitis. Recently, variations in the subtypes of fibroblasts and their expression profiles have been identified in these prevalent autoimmune skin diseases, implying that fibroblasts may exhibit distinct functionalities across different diseases. In this review, from the perspective of their fundamental functions and remarkable heterogeneity, we have comprehensively collected evidence on the role of fibroblasts and their distinct subpopulations in psoriasis, vitiligo, atopic dermatitis, and scleroderma. Importantly, these findings hold promise for guiding future research directions and identifying novel therapeutic targets for treating these diseases.
Collapse
Affiliation(s)
| | | | | | | | | | - Dong Li
- Department of Dermatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| |
Collapse
|
3
|
Motta F, Tonutti A, Isailovic N, Ceribelli A, Costanzo G, Rodolfi S, Selmi C, De Santis M. Proteomic aptamer analysis reveals serum biomarkers associated with disease mechanisms and phenotypes of systemic sclerosis. Front Immunol 2023; 14:1246777. [PMID: 37753072 PMCID: PMC10518467 DOI: 10.3389/fimmu.2023.1246777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Accepted: 08/28/2023] [Indexed: 09/28/2023] Open
Abstract
Background Systemic sclerosis (SSc) is an autoimmune connective tissue disease that affects multiple organs, leading to elevated morbidity and mortality with limited treatment options. The early detection of organ involvement is challenging as there is currently no serum marker available to predict the progression of SSc. The aptamer technology proteomic analysis holds the potential to correlate SSc manifestations with serum proteins up to femtomolar concentrations. Methods This is a two-tier study of serum samples from women with SSc (including patients with interstitial lung disease - ILD - at high-resolution CT scan) and age-matched healthy controls (HC) that were first analyzed with aptamer-based proteomic analysis for over 1300 proteins. Proposed associated proteins were validated by ELISA first in an independent cohort of patients with SSc and HC, and selected proteins subject to further validation in two additional cohorts. Results The preliminary aptamer-based proteomic analysis identified 33 proteins with significantly different concentrations in SSc compared to HC sera and 9 associated with SSc-ILD, including proteins involved in extracellular matrix formation and cell-cell adhesion, angiogenesis, leukocyte recruitment, activation, and signaling. Further validations in independent cohorts ultimately confirmed the association of specific proteins with early SSc onset, specific organ involvement, and serum autoantibodies. Conclusions Our multi-tier proteomic analysis identified serum proteins discriminating patients with SSc and HC or associated with different SSc subsets, disease duration, and manifestations, including ILD, skin involvement, esophageal disease, and autoantibodies.
Collapse
Affiliation(s)
- Francesca Motta
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Italy
- Rheumatology and Clinical Immunology, Istituti di Ricovero e Cura a Carattere Scientifico (IRCCS) Humanitas Research Hospital, Rozzano, Italy
| | - Antonio Tonutti
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Italy
- Rheumatology and Clinical Immunology, Istituti di Ricovero e Cura a Carattere Scientifico (IRCCS) Humanitas Research Hospital, Rozzano, Italy
| | - Natasa Isailovic
- Rheumatology and Clinical Immunology, Istituti di Ricovero e Cura a Carattere Scientifico (IRCCS) Humanitas Research Hospital, Rozzano, Italy
| | - Angela Ceribelli
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Italy
- Rheumatology and Clinical Immunology, Istituti di Ricovero e Cura a Carattere Scientifico (IRCCS) Humanitas Research Hospital, Rozzano, Italy
| | - Giovanni Costanzo
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Italy
- Rheumatology and Clinical Immunology, Istituti di Ricovero e Cura a Carattere Scientifico (IRCCS) Humanitas Research Hospital, Rozzano, Italy
| | - Stefano Rodolfi
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Italy
- Rheumatology and Clinical Immunology, Istituti di Ricovero e Cura a Carattere Scientifico (IRCCS) Humanitas Research Hospital, Rozzano, Italy
| | - Carlo Selmi
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Italy
- Rheumatology and Clinical Immunology, Istituti di Ricovero e Cura a Carattere Scientifico (IRCCS) Humanitas Research Hospital, Rozzano, Italy
| | - Maria De Santis
- Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Italy
- Rheumatology and Clinical Immunology, Istituti di Ricovero e Cura a Carattere Scientifico (IRCCS) Humanitas Research Hospital, Rozzano, Italy
| |
Collapse
|
4
|
Li X, Wu J, Zhu S, Wei Q, Wang L, Chen J. Intragraft immune cells: accomplices or antagonists of recipient-derived macrophages in allograft fibrosis? Cell Mol Life Sci 2023; 80:195. [PMID: 37395809 DOI: 10.1007/s00018-023-04846-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 05/22/2023] [Accepted: 06/21/2023] [Indexed: 07/04/2023]
Abstract
Organ fibrosis caused by chronic allograft rejection is a major concern in the field of transplantation. Macrophage-to-myofibroblast transition plays a critical role in chronic allograft fibrosis. Adaptive immune cells (such as B and CD4+ T cells) and innate immune cells (such as neutrophils and innate lymphoid cells) participate in the occurrence of recipient-derived macrophages transformed to myofibroblasts by secreting cytokines, which eventually leads to fibrosis of the transplanted organ. This review provides an update on the latest progress in understanding the plasticity of recipient-derived macrophages in chronic allograft rejection. We discuss here the immune mechanisms of allograft fibrosis and review the reaction of immune cells in allograft. The interactions between immune cells and the process of myofibroblast formulation are being considered for the potential therapeutic targets of chronic allograft fibrosis. Therefore, research on this topic seems to provide novel clues for developing strategies for preventing and treating allograft fibrosis.
Collapse
Affiliation(s)
- Xiaoping Li
- Cancer Center, First Hospital of Jilin University, Changchun, 130021, Jilin, China
- Laboratory for Tumor Immunology, First Hospital of Jilin University, Changchun, 130061, Jilin, China
- Department of Pediatrics, First Hospital of Jilin University, Changchun, 130021, Jilin, China
| | - Jing Wu
- Cancer Center, First Hospital of Jilin University, Changchun, 130021, Jilin, China
- Laboratory for Tumor Immunology, First Hospital of Jilin University, Changchun, 130061, Jilin, China
| | - Shan Zhu
- Cancer Center, First Hospital of Jilin University, Changchun, 130021, Jilin, China
- Laboratory for Tumor Immunology, First Hospital of Jilin University, Changchun, 130061, Jilin, China
| | - Qiuyu Wei
- Laboratory for Tumor Immunology, First Hospital of Jilin University, Changchun, 130061, Jilin, China
| | - Liyan Wang
- Laboratory for Tumor Immunology, First Hospital of Jilin University, Changchun, 130061, Jilin, China
| | - Jingtao Chen
- Cancer Center, First Hospital of Jilin University, Changchun, 130021, Jilin, China.
- Laboratory for Tumor Immunology, First Hospital of Jilin University, Changchun, 130061, Jilin, China.
| |
Collapse
|
5
|
Bhandari R, Yang H, Kosarek NN, Smith AE, Garlick JA, Hinchcliff M, Whitfield ML, Pioli PA. Human dermal fibroblast-derived exosomes induce macrophage activation in systemic sclerosis. Rheumatology (Oxford) 2023; 62:SI114-SI124. [PMID: 35946522 PMCID: PMC9910573 DOI: 10.1093/rheumatology/keac453] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 07/29/2022] [Accepted: 07/29/2022] [Indexed: 02/07/2023] Open
Abstract
OBJECTIVES Prior work demonstrates that co-cultured macrophages and fibroblasts from patients with SSc engage in reciprocal activation. However, the mechanism by which these cell types communicate and contribute to fibrosis and inflammation in SSc is unknown. METHODS Fibroblasts were isolated from skin biopsies obtained from 7 SSc patients or 6 healthy age and gender-matched control subjects following written informed consent. Human donor-derived macrophages were cultured with exosomes isolated from control or SSc fibroblasts for an additional 48 h. Macrophages were immunophenotyped using flow cytometry, qRT-PCR and multiplex. For mutual activation studies, exosome-activated macrophages were co-cultured with SSc or healthy fibroblasts using Transwells. RESULTS Macrophages activated with dermal fibroblast-derived exosomes from SSc patients upregulated surface expression of CD163, CD206, MHC Class II and CD16 and secreted increased levels of IL-6, IL-10, IL-12p40 and TNF compared with macrophages incubated with healthy control fibroblasts (n = 7, P < 0.05). Exosome-stimulated macrophages and SSc fibroblasts engaged in reciprocal activation, as production of collagen and fibronectin was significantly increased in SSc fibroblasts receiving signals from SSc exosome-stimulated macrophages (n = 7, P < 0.05). CONCLUSION In this work, we demonstrate for the first time that human SSc dermal fibroblasts mediate macrophage activation through exosomes. Our findings suggest that macrophages and fibroblasts engage in cross-talk in SSc skin, resulting in mutual activation, inflammation, and extracellular matrix (ECM) deposition. Collectively, these studies implicate macrophages and fibroblasts as cooperative mediators of fibrosis in SSc and suggest therapeutic targeting of both cell types may provide maximal benefit in ameliorating disease in SSc patients.
Collapse
Affiliation(s)
| | - Heetaek Yang
- Department of Microbiology and Immunology
- Department of Biomedical Data Science, Geisel School of Medicine at Dartmouth, Lebanon, NH
| | - Noelle N Kosarek
- Department of Microbiology and Immunology
- Department of Biomedical Data Science, Geisel School of Medicine at Dartmouth, Lebanon, NH
| | - Avi E Smith
- Department of Diagnostic Science, Tufts University School of Dental Medicine, Boston, MA
| | - Jonathan A Garlick
- Department of Diagnostic Science, Tufts University School of Dental Medicine, Boston, MA
| | - Monique Hinchcliff
- Division of Rheumatology, Allergy, and Immunology, Department of Internal Medicine, Yale School of Medicine, New Haven, CT, USA
| | - Michael L Whitfield
- Department of Biomedical Data Science, Geisel School of Medicine at Dartmouth, Lebanon, NH
| | | |
Collapse
|
6
|
Kardum Ž, Milas-Ahić J, Šahinović I, Masle AM, Uršić D, Kos M. Serum levels of interleukin 17 and 22 in patients with systemic sclerosis: a single-center cross-sectional study. Rheumatol Int 2023; 43:345-354. [PMID: 36416900 DOI: 10.1007/s00296-022-05250-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 11/14/2022] [Indexed: 11/24/2022]
Abstract
Systemic sclerosis (SSc) is a chronic, autoimmune disease characterized by inflammation, vasculopathy, and fibrosis of the skin and internal organs. Immunological response in SSc is still poorly understood. Cytokines play a significant role in this process leading to vasculopathy and fibrosis. In this cross-sectional study, we aimed to investigate serum levels of Th-17-related cytokines, IL-17 and IL-22, and to determine their correlation to the clinical association in SSc patients. Serum IL-17 and IL-22 levels were examined in 42 SSc patients and 29 healthy individuals. Associations between serum IL-17 and IL-22 levels and the duration of the disease, the extent of skin fibrosis, capillaroscopic findings, and involvement of the internal organs were explored. Serum IL-17 levels were not different in SSc and the control group. Serum IL-22 levels were significantly elevated in SSc patients compared to healthy individuals (p = 0.04). A positive correlation was found between the IL-22 sera levels and interstitial lung disease (p = 0.007). These results suggest IL-22 as a potential biomarker in SSc-related interstitial lung disease.
Collapse
Affiliation(s)
- Željka Kardum
- Department of Rheumatology, Clinical Immunology and Allergology, University Hospital Centre Osijek, J. Huttlera 4, 31000, Osijek, Croatia. .,School of Medicine, University J. J. Strossmayer Osijek, Huttlera 4, 31000, Osijek, Croatia.
| | - Jasminka Milas-Ahić
- Department of Rheumatology, Clinical Immunology and Allergology, University Hospital Centre Osijek, J. Huttlera 4, 31000, Osijek, Croatia.,School of Medicine, University J. J. Strossmayer Osijek, Huttlera 4, 31000, Osijek, Croatia
| | - Ines Šahinović
- School of Medicine, University J. J. Strossmayer Osijek, Huttlera 4, 31000, Osijek, Croatia.,Department of Clinical Laboratory Diagnostics, University Hospital Centre Osijek, 31000, Osijek, Croatia
| | - Ana Marija Masle
- Department of Rheumatology, Clinical Immunology and Allergology, University Hospital Centre Osijek, J. Huttlera 4, 31000, Osijek, Croatia.,School of Medicine, University J. J. Strossmayer Osijek, Huttlera 4, 31000, Osijek, Croatia
| | - Dora Uršić
- Department of Rheumatology, Clinical Immunology and Allergology, University Hospital Centre Osijek, J. Huttlera 4, 31000, Osijek, Croatia.,School of Medicine, University J. J. Strossmayer Osijek, Huttlera 4, 31000, Osijek, Croatia
| | - Martina Kos
- School of Medicine, University J. J. Strossmayer Osijek, Huttlera 4, 31000, Osijek, Croatia.,Department of Pediatrics, University Hospital Centre Osijek, J. Huttlera 4, 31000, Osijek, Croatia
| |
Collapse
|
7
|
Kim S, Park HJ, Lee SI. The Microbiome in Systemic Sclerosis: Pathophysiology and Therapeutic Potential. Int J Mol Sci 2022; 23:ijms232416154. [PMID: 36555792 PMCID: PMC9853331 DOI: 10.3390/ijms232416154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 12/06/2022] [Accepted: 12/15/2022] [Indexed: 12/23/2022] Open
Abstract
Systemic sclerosis (SSc), also known as scleroderma, is an autoimmune disease with unknown etiology characterized by multi-organ fibrosis. Despite substantial investigation on SSc-related cellular and molecular mechanisms, effective therapies are still lacking. The skin, lungs, and gut are the most affected organs in SSc, which act as physical barriers and constantly communicate with colonized microbiota. Recent reports have documented a unique microbiome signature, which may be the pathogenic trigger or driver of SSc. Since gut microbiota influences the efficacy and toxicity of oral drugs, evaluating drug-microbiota interactions has become an area of interest in disease treatment. The existing evidence highlights the potential of the microbial challenge as a novel therapeutic option in SSc. In this review, we have summarized the current knowledge about molecular mechanisms of SSc and highlighted the underlying role of the microbiome in SSc pathogenesis. We have also discussed the latest therapeutic interventions using microbiomes in SSc, including drug-microbiota interactions and animal disease models. This review aims to elucidate the pathophysiological connection and therapeutic potential of the microbiome in SSc. Insights into the microbiome will significantly improve our understanding of etiopathogenesis and developing therapeutics for SSc.
Collapse
|
8
|
Cai S, Hu Z, Chen Y, Zhong J, Dong L. Potential roles of non-lymphocytic cells in the pathogenesis of IgG4-related disease. Front Immunol 2022; 13:940581. [PMID: 35967331 PMCID: PMC9366038 DOI: 10.3389/fimmu.2022.940581] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 07/04/2022] [Indexed: 11/18/2022] Open
Abstract
Studies have confirmed the involvement of a variety of lymphocyte subsets, including type 2 helper T lymphocytes (Th2) and IgG4+ B lymphocytes, in the pathogenesis of IgG4-related disease (IgG4-RD). Those lymphocytes contribute to the major pathogenetic features of IgG4-RD. However, they are not the only cellular components in the immunoinflammatory environment of this mysterious disease entity. Recent studies have suggested that various non-lymphocytic components, including macrophages and fibroblasts, may also play an important role in the pathogenetic process of IgG4-RD in terms of contributing to the chronic and complex progress of the disease. Therefore, the potential role of non-lymphocyte in the pathogenesis of IgG4-RD is worth discussing.
Collapse
Affiliation(s)
| | | | - Yu Chen
- *Correspondence: Lingli Dong, ; Jixin Zhong, ; Yu Chen,
| | - Jixin Zhong
- *Correspondence: Lingli Dong, ; Jixin Zhong, ; Yu Chen,
| | - Lingli Dong
- *Correspondence: Lingli Dong, ; Jixin Zhong, ; Yu Chen,
| |
Collapse
|
9
|
Pan Y, Du D, Wang L, Wang X, He G, Jiang X. The Role of T Helper 22 Cells in Dermatological Disorders. Front Immunol 2022; 13:911546. [PMID: 35911703 PMCID: PMC9331286 DOI: 10.3389/fimmu.2022.911546] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Accepted: 06/14/2022] [Indexed: 11/25/2022] Open
Abstract
T helper 22 (Th22) cells are a newly identified subset of CD4+ T cells that secrete the effector cytokine interleukin 22 (IL-22) upon specific antigen stimulation, barely with IFN-γ or IL-17. Increasing studies have demonstrated that Th22 cells and IL-22 play essential roles in skin barrier defense and skin disease pathogenesis since the IL-22 receptor is widely expressed in the skin, especially in keratinocytes. Herein, we reviewed the characterization, differentiation, and biological activities of Th22 cells and elucidated their roles in skin health and disease. We mainly focused on the intricate crosstalk between Th22 cells and keratinocytes and provided potential therapeutic strategies targeting the Th22/IL-22 signaling pathway.
Collapse
Affiliation(s)
- Yu Pan
- Department of Dermatology, West China Hospital, Sichuan University, Chengdu, China
- Department of Dermatology, the First Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Dan Du
- Department of Dermatology, West China Hospital, Sichuan University, Chengdu, China
| | - Lian Wang
- Department of Dermatology, West China Hospital, Sichuan University, Chengdu, China
| | - Xiaoyun Wang
- Department of Dermatology, West China Hospital, Sichuan University, Chengdu, China
- Laboratory of Dermatology, China Institute of Inflammation and Immunology (CIII), Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
- State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Gu He
- Department of Dermatology, West China Hospital, Sichuan University, Chengdu, China
- Laboratory of Dermatology, China Institute of Inflammation and Immunology (CIII), Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
- State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
- *Correspondence: Gu He, ; Xian Jiang,
| | - Xian Jiang
- Department of Dermatology, West China Hospital, Sichuan University, Chengdu, China
- Laboratory of Dermatology, China Institute of Inflammation and Immunology (CIII), Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
- State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
- *Correspondence: Gu He, ; Xian Jiang,
| |
Collapse
|
10
|
Dai B, Ding L, Zhao L, Zhu H, Luo H. Contributions of Immune Cells and Stromal Cells to the Pathogenesis of Systemic Sclerosis: Recent Insights. Front Pharmacol 2022; 13:826839. [PMID: 35185577 PMCID: PMC8852243 DOI: 10.3389/fphar.2022.826839] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 01/04/2022] [Indexed: 12/21/2022] Open
Abstract
Systemic sclerosis (SSc) is a multisystem rheumatic disease characterized by vascular dysfunction, autoimmune abnormalities, and progressive organ fibrosis. A series of studies in SSc patients and fibrotic models suggest that immune cells, fibroblasts, and endothelial cells participate in inflammation and aberrant tissue repair. Furthermore, the growing number of studies on single-cell RNA sequencing (scRNA-seq) technology in SSc elaborate on the transcriptomics and heterogeneities of these cell subsets significantly. In this review, we summarize the current knowledge regarding immune cells and stromal cells in SSc patients and discuss their potential roles in SSc pathogenesis, focusing on recent advances in the new subtypes by scRNA-seq.
Collapse
Affiliation(s)
- Bingying Dai
- Department of Rheumatology and Immunology, Xiangya Hospital, Central South University, Changsha, China
| | - Liqing Ding
- Department of Rheumatology and Immunology, Xiangya Hospital, Central South University, Changsha, China
| | - Lijuan Zhao
- Department of Rheumatology and Immunology, Xiangya Hospital, Central South University, Changsha, China
| | - Honglin Zhu
- Department of Rheumatology and Immunology, Xiangya Hospital, Central South University, Changsha, China
- Provincial Clinical Research Center for Rheumatic and Immunologic Diseases, Xiangya Hospital, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, China
- *Correspondence: Honglin Zhu, ; Hui Luo,
| | - Hui Luo
- Department of Rheumatology and Immunology, Xiangya Hospital, Central South University, Changsha, China
- Provincial Clinical Research Center for Rheumatic and Immunologic Diseases, Xiangya Hospital, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Changsha, China
- *Correspondence: Honglin Zhu, ; Hui Luo,
| |
Collapse
|
11
|
Qu Z, Dou W, Zhang K, Duan L, Zhou D, Yin S. IL-22 inhibits bleomycin-induced pulmonary fibrosis in association with inhibition of IL-17A in mice. Arthritis Res Ther 2022; 24:280. [PMID: 36564791 PMCID: PMC9789559 DOI: 10.1186/s13075-022-02977-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 12/12/2022] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Interstitial lung disease, a common extra-articular complication of connective tissue disease, is characterized by progressive and irreversible pulmonary inflammation and fibrosis, which causes significant mortality. IL-22 shows a potential in regulating chronic inflammation and possibly plays an anti-fibrotic role by protecting epithelial cells. However, the detailed effects and underlying mechanisms are still unclear. In this study, we explored the impact of IL-22 on pulmonary fibrosis both in vivo and in vitro. METHODS To induce pulmonary fibrosis, wild-type mice and IL-22 knockout mice were intratracheally injected with bleomycin followed by treatments with recombinant IL-22 or IL-17A neutralizing antibody. We investigated the role of IL-22 on bleomycin-induced pulmonary fibrosis and the mechanism in the possible interaction between IL-22 and IL-17A. Fibrosis-related genes were detected using RT-qPCR, western blot, and immunofluorescence. Inflammatory and fibrotic changes were assessed based on histological features. We also used A549 human alveolar epithelial cells, NIH/3T3 mouse fibroblast cells, and primary mouse lung fibroblasts to study the impact of IL-22 on fibrosis in vitro. RESULTS IL-22 knockout mice showed aggravated pulmonary fibrosis compared with wild-type mice, and injection of recombinant IL-22 decreased the severe fibrotic manifestations in IL-22 knockout mice. In cell culture assays, IL-22 decreased protein levels of Collagen I in A549 cells, NIH/3T3 cells, and primary mouse lung fibroblasts. IL-22 also reduced the protein level of Collagen I in NIH/3T3 cells which were co-cultured with T cells. Mechanistically, IL-22 reduced the Th17 cell proportion and IL-17A mRNA level in lung tissues, and treatment with an IL-17A neutralizing antibody alleviated the severe pulmonary fibrosis in IL-22 knockout mice. The IL-17A neutralizing antibody also reduced Collagen I expression in NIH/3T3 cells in vitro. Knockdown of IL-17A with siRNAs or administration of IL-22 in NIH/3T3 cells and MLFs decreased expression of Collagen I, an effect blocked by concurrent use of recombinant IL-17A. CONCLUSIONS IL-22 mediated an anti-fibrogenesis effect in the bleomycin-induced pulmonary fibrosis model and this effect was associated with inhibition of IL-17A.
Collapse
Affiliation(s)
- Ziye Qu
- grid.413389.40000 0004 1758 1622Department of Rheumatology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221002 China ,grid.417303.20000 0000 9927 0537The First Clinical Medicine School, Xuzhou Medical University, Xuzhou, 221002 China
| | - Wencan Dou
- grid.413389.40000 0004 1758 1622Department of Rheumatology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221002 China ,grid.417303.20000 0000 9927 0537The First Clinical Medicine School, Xuzhou Medical University, Xuzhou, 221002 China
| | - Kexin Zhang
- grid.417303.20000 0000 9927 0537Blood Diseases Institute, Xuzhou Medical University, Xuzhou, 221002 China
| | - Lili Duan
- Department of Rheumatology, The People’s Hospital of Jiawang District of Xuzhou, Xuzhou, 221011 China
| | - Dongmei Zhou
- grid.413389.40000 0004 1758 1622Department of Rheumatology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221002 China ,grid.417303.20000 0000 9927 0537The First Clinical Medicine School, Xuzhou Medical University, Xuzhou, 221002 China
| | - Songlou Yin
- grid.413389.40000 0004 1758 1622Department of Rheumatology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221002 China ,grid.417303.20000 0000 9927 0537The First Clinical Medicine School, Xuzhou Medical University, Xuzhou, 221002 China
| |
Collapse
|
12
|
Abstract
From the clinical standpoint, systemic sclerosis (SSc) is characterized by skin and internal organ fibrosis, diffuse fibroproliferative vascular modifications, and autoimmunity. Clinical presentation and course are highly heterogenous and life expectancy variably affected mostly dependent on lung and heart involvement. SSc touches more women than men with differences in disease severity and environmental exposure. Pathogenetic events originate from altered homeostasis favored by genetic predisposition, environmental cues and a variety of endogenous and exogenous triggers. Epigenetic modifications modulate SSc pathogenesis which strikingly associate profound immune-inflammatory dysregulation, abnormal endothelial cell behavior, and cell trans-differentiation into myofibroblasts. SSc myofibroblasts show enhanced survival and enhanced extracellular matrix deposition presenting altered structure and altered physicochemical properties. Additional cell types of likely pathogenic importance are pericytes, platelets, and keratinocytes in conjunction with their relationship with vessel wall cells and fibroblasts. In SSc, the profibrotic milieu is favored by cell signaling initiated in the one hand by transforming growth factor-beta and related cytokines and in the other hand by innate and adaptive type 2 immune responses. Radical oxygen species and invariant receptors sensing danger participate to altered cell behavior. Conventional and SSc-specific T cell subsets modulate both fibroblasts as well as endothelial cell dysfunction. Beside autoantibodies directed against ubiquitous antigens important for enhanced clinical classification, antigen-specific agonistic autoantibodies may have a pathogenic role. Recent studies based on single-cell RNAseq and multi-omics approaches are revealing unforeseen heterogeneity in SSc cell differentiation and functional states. Advances in system biology applied to the wealth of data generated by unbiased screening are allowing to subgroup patients based on distinct pathogenic mechanisms. Deciphering heterogeneity in pathogenic mechanisms will pave the way to highly needed personalized therapeutic approaches.
Collapse
|
13
|
Jiang Q, Yang G, Xiao F, Xie J, Wang S, Lu L, Cui D. Role of Th22 Cells in the Pathogenesis of Autoimmune Diseases. Front Immunol 2021; 12:688066. [PMID: 34295334 PMCID: PMC8290841 DOI: 10.3389/fimmu.2021.688066] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 06/22/2021] [Indexed: 12/14/2022] Open
Abstract
Upon antigenic stimulation, naïve CD4+T cells differentiate into different subsets and secrete various cytokines to exert biological effects. Th22 cells, a newly identified CD4+T cell subset,are distinct from the Th1, Th2 and Th17 subsets. Th22 cells secrete certain cytokines such as IL-22, IL-13 and TNF-α, but not others, such as IL-17, IL-4, or interferon-γ (IFN-γ), and they express chemokine receptors CCR4, CCR6 and CCR10. Th22 cells were initially found to play a role in skin inflammatory diseases, but recent studies have demonstrated their involvement in the development of various autoimmune diseases. Here, we review research advances in the origin, characteristics and effector mechanisms of Th22 cells, with an emphasis on the role of Th22 cells and their main effector cytokine IL-22 in the pathogenesis of autoimmune diseases. The findings presented here may facilitate the development of new therapeutic strategies for targeting these diseases.
Collapse
Affiliation(s)
- Qi Jiang
- Department of Blood Transfusion, Shaoxing People’s Hospital (Shaoxing Hospital, Zhejiang University School of Medicine), Shaoxing, China
| | - Guocan Yang
- Department of Blood Transfusion, Shaoxing People’s Hospital (Shaoxing Hospital, Zhejiang University School of Medicine), Shaoxing, China
| | - Fan Xiao
- Department of Pathology and Shenzhen Institute of Research and Innovation, The University of Hong Kong; Chongqing International Institute for Immunology, Chongqing, China
| | - Jue Xie
- Department of Blood Transfusion, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Shengjun Wang
- Department of Laboratory Medicine, The Affiliated People’s Hospital, Jiangsu University, Zhenjiang, China
- Department of Immunology, Jiangsu Key Laboratory of Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, China
| | - Liwei Lu
- Department of Pathology and Shenzhen Institute of Research and Innovation, The University of Hong Kong; Chongqing International Institute for Immunology, Chongqing, China
| | - Dawei Cui
- Department of Blood Transfusion, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| |
Collapse
|
14
|
Xuan X, Zhang L, Tian C, Wu T, Ye H, Cao J, Chen F, Liang Y, Yang H, Huang C. Interleukin-22 and connective tissue diseases: emerging role in pathogenesis and therapy. Cell Biosci 2021; 11:2. [PMID: 33407883 PMCID: PMC7788945 DOI: 10.1186/s13578-020-00504-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Accepted: 11/27/2020] [Indexed: 01/14/2023] Open
Abstract
Interleukin-22 (IL-22), a member of the IL-10 family of cytokines, is produced by a number of immune cells involved in the immune microenvironment of the body. IL-22 plays its pivotal roles by binding to the IL-22 receptor complex (IL-22R) and subsequently activating the IL-22R downstream signalling pathway. It has recently been reported that IL-22 also contributes to the pathogenesis of many connective tissue diseases (CTDs). In this review, we will discuss the role of IL-22 in several CTDs, such as system lupus erythematosus, rheumatoid arthritis, Sjögren’s syndrome, systemic sclerosis and dermatomyositis, suggesting that IL-22 may be a potential therapeutic target in CTDs.
Collapse
Affiliation(s)
- Xiuyun Xuan
- Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, Hubei, China
| | - Lin Zhang
- Department of Gerontology, Jinan City People's Hospital, Jinan, 271199, Shandong, China
| | - Chunxia Tian
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Ting Wu
- Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, Hubei, China
| | - Haihua Ye
- Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, Hubei, China
| | - Juanmei Cao
- Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, Hubei, China
| | - Fangqi Chen
- Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, Hubei, China
| | - Yan Liang
- Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, Hubei, China
| | - Huilan Yang
- Department of Dermatology, General Hospital of Southern Theatre Command, Guangzhou, 510000, China.
| | - Changzheng Huang
- Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, Hubei, China.
| |
Collapse
|
15
|
Chen J, Lodi R, Zhang S, Su Z, Wu Y, Xia L. The double-edged role of IL-22 in organ fibrosis. Immunopharmacol Immunotoxicol 2020; 42:392-399. [PMID: 32689851 DOI: 10.1080/08923973.2020.1799388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 07/16/2020] [Indexed: 10/23/2022]
Abstract
Fibrosis is unregulated tissue repair in damaged or diseased organs, and the accumulation of excess extracellular matrix (ECM) impacts the structure and functions of organs, leading to death. Fibrosis is usually triggered by inflammation and tissue damage, and inflammatory mediators stimulate the proliferation of myofibroblasts and the excessive production of ECM. The IL-10 family cytokines play important roles in the development of fibrosis, and its member IL-22 has recently attracted specific attention. IL-22 plays great roles in preventing pathogens invasion and tissue damage, as well as making a contribution to pathogenic processes. Increasing evidence suggested that IL-22 is a key molecule in tissue repair, proliferation and mucosal barrier defense, and it has also been suggested to play both pro-fibrotic and anti-fibrotic roles in tissues. In this review, we summarized the pro-fibrotic and anti-fibrotic functions of IL-22 in various organs which may be of great significance for the development of potential therapeutic strategies for fibrosis-related diseases.
Collapse
Affiliation(s)
- Jia Chen
- International Genome Center, Jiangsu University, Zhenjiang, China
| | | | - Shiqing Zhang
- International Genome Center, Jiangsu University, Zhenjiang, China
| | - Zhaoliang Su
- International Genome Center, Jiangsu University, Zhenjiang, China
| | - Yan Wu
- Central Laboratory, Fourth Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Lin Xia
- International Genome Center, Jiangsu University, Zhenjiang, China
- Department of Laboratory Medicine, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| |
Collapse
|
16
|
Worrell JC, O'Reilly S. Bi-directional communication: Conversations between fibroblasts and immune cells in systemic sclerosis. J Autoimmun 2020; 113:102526. [PMID: 32713676 DOI: 10.1016/j.jaut.2020.102526] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 07/13/2020] [Accepted: 07/14/2020] [Indexed: 02/09/2023]
Abstract
Systemic Sclerosis (SSc) is an autoimmune idiopathic connective tissue disease, characterized by aberrant fibro-proliferative and inflammatory responses, causing fibrosis of multiple organs. In recent years the interactions between innate and adaptive immune cells with resident fibroblasts have been uncovered. Cross-talk between immune and stromal cells mediates activation of stromal cells to myofibroblasts; key cells in the pathophysiology of fibrosis. These cells and their cytokines appear to mediate their effects in both a paracrine and autocrine fashion. This review examines the role of innate and adaptive immune cells in SSc, focusing on recent advances that have illuminated our understanding of ongoing bi-directional communication between immune and stromal cells. Finally, we appraise current and future therapies and how these may be useful in a disease that currently has no specific disease modifying treatment.
Collapse
Affiliation(s)
- Julie C Worrell
- Insititute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, UK
| | - Steven O'Reilly
- Durham University, Biosciences, Faculty of Science, Durham, UK. steven.o'
| |
Collapse
|
17
|
Zhong Y, Tang R, Lu Y, Wang W, Xiao C, Meng T, Ao X, Li X, Peng L, Kwadwo Nuro-Gyina P, Zhou Q. Irbesartan may relieve renal injury by suppressing Th22 cells chemotaxis and infiltration in Ang II-induced hypertension. Int Immunopharmacol 2020; 87:106789. [PMID: 32683300 DOI: 10.1016/j.intimp.2020.106789] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 07/03/2020] [Accepted: 07/05/2020] [Indexed: 02/06/2023]
Abstract
Angiotensin II (Ang II) as an important pathogenic factor, has been implicated in the pathogenesis of hypertension and associated renal injury, and inhibition of Ang II can reduce renal inflammation and exert renal protective effects. In the present study, we determine the infiltration of Th22 cells in kidney and serum IL-22 level in hypertensive renal injury, and explore the effects and mechanisms of a widely used angiotensin II type 1 receptor blocker irbesartan on Th22 cells infiltration and related renal injury. Hypertension was induced by administering 1.5 mg/kg Ang II subcutaneously daily in C57BL/6 mice for 28 days. The mice were additionally treated by irbesartan or amlodipine. Renal Th22 lymphocytes frequency was evaluated through flow cytometry, serum IL-22 was detected by ELISA, and renal histopathological changes were also detected. The levels of renal chemokines (CCL20, CCL22, CCL27) and serum proinflammatory factors (IL-1β, IL-6, TNF-α) were measured by ELISA. Renal expression of alpha-smooth muscle actin (α-SMA), Fibronectin (FN) and collagen I (Col I) were evaluated by western blot. Chemotaxis assay and co-culture assay were conducted to clarify the effect of irbesartan on Th22 cells chemotaxis and differentiation in vitro. Our results showed in Ang II-infused hypertension mice, irbesartan suppressed renal Th22 cells accumulation as well as CCL20, CCL22, CCL27 expression. Serum IL-22, IL-1β, IL-6 and TNF-α concentrations wasere also reduced, in addition to inhibited renal expression of α-SMA, FN and Col I. Irbesartan treatment lowered blood pressure, urinary protein and renal pathological damage. In vitro, irbesartan could abrogate the Th22 cells chemotaxis and differentiation, compared to control and amlodipine groups. Our study reveals a new pharmacological mechanism that irbesartan ameliorates inflammation and fibrosis in hypertensive renal injury induced by Ang II, maybe through inhibiting Th22 cells chemotaxis and infiltration, which provides a new theoretical basis and therapeutic target for hypertensive renal injury.
Collapse
Affiliation(s)
- Yong Zhong
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Rong Tang
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha, Hunan, China.
| | - Yang Lu
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Wei Wang
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Chenggen Xiao
- Department of Emergency, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Ting Meng
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xiang Ao
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xiaozhao Li
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Ling Peng
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | | | - Qiaoling Zhou
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| |
Collapse
|
18
|
Zhang M, Zhang S. T Cells in Fibrosis and Fibrotic Diseases. Front Immunol 2020; 11:1142. [PMID: 32676074 PMCID: PMC7333347 DOI: 10.3389/fimmu.2020.01142] [Citation(s) in RCA: 165] [Impact Index Per Article: 41.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Accepted: 05/11/2020] [Indexed: 01/08/2023] Open
Abstract
Fibrosis is the extensive deposition of fibrous connective tissue, and it is characterized by the accumulation of collagen and other extracellular matrix (ECM) components. Fibrosis is essential for wound healing and tissue repair in response to a variety of triggers, which include infection, inflammation, autoimmune disorder, degenerative disease, tumor, and injury. Fibrotic remodeling in various diseases, such as liver cirrhosis, pulmonary fibrosis, renal interstitial fibrosis, myocardial infarction, systemic sclerosis (SSc), and graft-versus-host disease (GVHD), can impair organ function, causing high morbidity and mortality. Both innate and adaptive immunity are involved in fibrogenesis. Although the roles of macrophages in fibrogenesis have been studied for many years, the underlying mechanisms concerning the manner in which T cells regulate fibrosis are not completely understood. The T cell receptor (TCR) engages the antigen and shapes the repertoire of antigen-specific T cells. Based on the divergent expression of surface molecules and cell functions, T cells are subdivided into natural killer T (NKT) cells, γδ T cells, CD8+ cytotoxic T lymphocytes (CTL), regulatory T (Treg) cells, T follicular regulatory (Tfr) cells, and T helper cells, including Th1, Th2, Th9, Th17, Th22, and T follicular helper (Tfh) cells. In this review, we summarize the pro-fibrotic or anti-fibrotic roles and distinct mechanisms of different T cell subsets. On reviewing the literature, we conclude that the T cell regulations are commonly disease-specific and tissue-specific. Finally, we provide perspectives on microbiota, viral infection, and metabolism, and discuss the current advancements of technologies for identifying novel targets and developing immunotherapies for intervention in fibrosis and fibrotic diseases.
Collapse
Affiliation(s)
- Mengjuan Zhang
- College of Life Sciences, Nankai University, Tianjin, China
| | - Song Zhang
- College of Life Sciences, Nankai University, Tianjin, China
| |
Collapse
|
19
|
Russo B, Brembilla NC, Chizzolini C. Interplay Between Keratinocytes and Fibroblasts: A Systematic Review Providing a New Angle for Understanding Skin Fibrotic Disorders. Front Immunol 2020; 11:648. [PMID: 32477322 PMCID: PMC7232541 DOI: 10.3389/fimmu.2020.00648] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 03/23/2020] [Indexed: 12/20/2022] Open
Abstract
Background/Objective: Skin fibrosis is the result of aberrant processes leading to abnormal deposition of extracellular matrix (ECM) in the dermis. In healthy skin, keratinocytes participate to maintain skin homeostasis by actively crosstalking with fibroblasts. Within the wide spectrum of fibrotic skin disorders, relatively little attention has been devoted to the role of keratinocytes for their capacity to participate to skin fibrosis. This systematic review aims at summarizing the available knowledge on the reciprocal interplay of keratinocytes with fibroblasts and their soluble mediators in physiological states, mostly wound healing, and conditions associated with skin fibrosis. Methods: We performed a systematic literature search on PubMed to identify in vitro and ex vivo human studies investigating the keratinocyte characteristics and their interplay with fibroblasts in physiological conditions and within fibrotic skin disorders including hypertrophic scars, keloids, and systemic sclerosis. Studies were selected according to pre-specified eligibility criteria. Data on study methods, models, stimuli and outcomes were retrieved and summarized according to pre-specified criteria. Results: Among the 6,271 abstracts retrieved, 73 articles were included, of which 14 were specifically dealing with fibrotic skin pathologies. Fifty-six studies investigated how keratinocyte may affect fibroblast responses in terms of ECM-related genes or protein production, phenotype modification, and cytokine production. Most studies in both physiological conditions and fibrosis demonstrated that keratinocytes stimulate fibroblasts through the production of interleukin 1, inducing keratinocyte growth factor (KGF) and metalloproteinases in the fibroblasts. When the potential of keratinocytes to modulate collagen synthesis by healthy fibroblasts was explored, the results were controversial. Nevertheless, studies investigating keratinocytes from fibrotic skin, including keloids, hypertrophic scar, and scleroderma, suggested their potential involvement in enhancing ECM deposition. Twenty-three papers investigated keratinocyte proliferation differentiation and production of soluble mediators in response to interactions with fibroblasts. Most studies showed that fibroblasts modulate keratinocyte viability, proliferation, and differentiation. The production of KGF by fibroblast was identified as key for these functions. Conclusions: This review condenses evidence for the active interaction between keratinocytes and fibroblasts in maintaining skin homeostasis and the altered homeostatic interplay between keratinocytes and dermal fibroblasts in scleroderma and scleroderma-like disorders.
Collapse
Affiliation(s)
- Barbara Russo
- Department of Pathology and Immunology, School of Medicine, University of Geneva, Geneva, Switzerland
| | - Nicolò C Brembilla
- Department of Pathology and Immunology, School of Medicine, University of Geneva, Geneva, Switzerland.,Dermatology, School of Medicine, University Hospital, Geneva, Switzerland
| | - Carlo Chizzolini
- Department of Pathology and Immunology, School of Medicine, University of Geneva, Geneva, Switzerland
| |
Collapse
|
20
|
Dufour AM, Borowczyk-Michalowska J, Alvarez M, Truchetet ME, Modarressi A, Brembilla NC, Chizzolini C. IL-17A Dissociates Inflammation from Fibrogenesis in Systemic Sclerosis. J Invest Dermatol 2020; 140:103-112.e8. [DOI: 10.1016/j.jid.2019.05.026] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 05/23/2019] [Accepted: 05/28/2019] [Indexed: 12/11/2022]
|
21
|
Luo S, Zhu R, Yu T, Fan H, Hu Y, Mohanta SK, Hu D. Chronic Inflammation: A Common Promoter in Tertiary Lymphoid Organ Neogenesis. Front Immunol 2019; 10:2938. [PMID: 31921189 PMCID: PMC6930186 DOI: 10.3389/fimmu.2019.02938] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2019] [Accepted: 11/29/2019] [Indexed: 12/15/2022] Open
Abstract
Tertiary lymphoid organs (TLOs) frequently develop locally in adults in response to non-resolving inflammation. Chronic inflammation leads to the differentiation of stromal fibroblast cells toward lymphoid tissue organizer-like cells, which interact with lymphotoxin α1β2+ immune cells. The interaction initiates lymphoid neogenesis by recruiting immune cells to the site of inflammation and ultimately leads to the formation of TLOs. Mature TLOs harbor a segregated T-cell zone, B-cell follicles with an activated germinal center, follicular dendritic cells, and high endothelial venules, which architecturally resemble those in secondary lymphoid organs. Since CXCL13 and LTα1β2 play key roles in TLO neogenesis, they might constitute potential biomarkers of TLO activity. The well-developed TLOs actively regulate local immune responses and influence disease progression, and they are thereby regarded as the powerhouses of local immunity. In this review, we recapitulated the determinants for TLOs development, with great emphasis on the fundamental role of chronic inflammation and tissue-resident stromal cells for TLO neogenesis, hence offering guidance for therapeutic interventions in TLO-associated diseases.
Collapse
Affiliation(s)
- Shanshan Luo
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Rui Zhu
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ting Yu
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Heng Fan
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yu Hu
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Sarajo Kumar Mohanta
- Institute for Cardiovascular Prevention, Ludwig-Maximilians-University, Munich, Germany
| | - Desheng Hu
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| |
Collapse
|
22
|
Th1- and Th17-Related Cytokines in Venous and Arterial Blood of Sclerodermic Patients with and without Digital Ulcers. BIOMED RESEARCH INTERNATIONAL 2019; 2019:7908793. [PMID: 31687398 PMCID: PMC6800960 DOI: 10.1155/2019/7908793] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 07/10/2019] [Accepted: 08/30/2019] [Indexed: 01/01/2023]
Abstract
The earliest clinical manifestation of SSc is usually Raynaud's phenomenon, a small-arteries vasospasm driven by vascular tone dysregulation and microcirculatory abnormalities, resulting in digital ulcers (DU) in up to 50% of patients. Many cytokines as well as growth factors have been shown to play a role in promoting vascular smooth muscle cell proliferation and fibroblast activation, leading to ischemic damage as well as skin fibrosis. We aim to investigate a possible difference in venous and arterial blood levels of many cytokines (Th1- and Th17-related), GM-CSF, and endothelin-1 (ET1) in patients with and without DU. In the same patients, the correlations between capillary damage, evaluated by nailfold videocapillaroscopy (NVC), extension of skin fibrosis, calculated by modified Rodnan skin score (mRSS), and cytokines, ET-1, and GM-CSF levels were also measured. Patients with DU showed venous levels of IL-1β (p=0.024), IL-6 (p=0.012), IL-22(p=0.006), and TGF-β (p=0.046) significantly higher compared to arterial levels and arterial levels of GM-CSF and TNF-alpha significantly higher compared to venous levels (p < 0.001). NVC abnormalities were correlated with arterial TNFa and venous IL22, IL23, and IL17 levels and negatively correlated with venous ET-1 levels, whereas mRSS showed a negative correlation with IL-21(ρ = -0.427, p=0.050). The increased Th17-cytokine levels in venous compared to arterial blood of patients with DU suggest local cytokine production on ulcer site. The higher TNFa and GM-CSF levels in arterial blood of DU patients support the attempt to mitigate the hypoxic damage, and the correlation between Th17-cytokines, mRSS, NVC, and ET1 agrees with the potent profibrotic stimulus at the onset of the disease, which decreases as the SSc progresses.
Collapse
|
23
|
Carvalheiro T, Affandi AJ, Malvar-Fernández B, Dullemond I, Cossu M, Ottria A, Mertens JS, Giovannone B, Bonte-Mineur F, Kok MR, Marut W, Reedquist KA, Radstake TR, García S. Induction of Inflammation and Fibrosis by Semaphorin 4A in Systemic Sclerosis. Arthritis Rheumatol 2019; 71:1711-1722. [PMID: 31012544 PMCID: PMC6790618 DOI: 10.1002/art.40915] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Accepted: 04/18/2019] [Indexed: 11/11/2022]
Abstract
OBJECTIVE To analyze the potential role of semaphorin 4A (Sema4A) in inflammatory and fibrotic processes involved in the pathology of systemic sclerosis (SSc). METHODS Sema4A levels in the plasma of healthy controls (n = 11) and SSc patients (n = 20) were determined by enzyme-linked immunosorbent assay (ELISA). The expression of Sema4A and its receptors in monocytes and CD4+ T cells from healthy controls and SSc patients (n = 6-7 per group) was determined by ELISA and flow cytometry. Th17 cytokine production by CD4+ T cells (n = 5-7) was analyzed by ELISA and flow cytometry. The production of inflammatory mediators and extracellular matrix (ECM) components by dermal fibroblast cells (n = 6) was analyzed by quantitative polymerase chain reaction, ELISA, Western blotting, confocal microscopy, and ECM deposition assay. RESULTS Plasma levels of Sema4A, and Sema4A expression by circulating monocytes and CD4+ T cells, were significantly higher in SSc patients than in healthy controls (P < 0.05). Inflammatory mediators significantly up-regulated the secretion of Sema4A by monocytes and CD4+ T cells from SSc patients (P < 0.05 versus unstimulated SSc cells). Functional assays showed that Sema4A significantly enhanced the expression of Th17 cytokines induced by CD3/CD28 in total CD4+ T cells as well in different CD4+ T cell subsets (P < 0.05 versus unstimulated SSc cells). Finally, Sema4A induced a profibrotic phenotype in dermal fibroblasts from both healthy controls and SSc patients, which was abrogated by blocking or silencing the expression of Sema4A receptors. CONCLUSION Our findings indicate that Sema4A plays direct and dual roles in promoting inflammation and fibrosis, 2 main features of SSc, suggesting that Sema4A might be a novel therapeutic target in SSc.
Collapse
Affiliation(s)
- Tiago Carvalheiro
- University Medical Center Utrecht, University of Utrecht, Utrecht, The Netherlands
| | - Alsya J Affandi
- University Medical Center Utrecht, University of Utrecht, Utrecht, The Netherlands
| | | | - Ilse Dullemond
- University Medical Center Utrecht, University of Utrecht, Utrecht, The Netherlands
| | - Marta Cossu
- University Medical Center Utrecht, University of Utrecht, Utrecht, The Netherlands
| | - Andrea Ottria
- University Medical Center Utrecht, University of Utrecht, Utrecht, The Netherlands
| | - Jorre S Mertens
- University Medical Center Utrecht, University of Utrecht, Utrecht, The Netherlands
| | - Barbara Giovannone
- University Medical Center Utrecht, University of Utrecht, Utrecht, The Netherlands
| | | | - Marc R Kok
- Maasstad Hospital Rotterdam, Rotterdam, The Netherlands
| | - Wioleta Marut
- University Medical Center Utrecht, University of Utrecht, Utrecht, The Netherlands
| | - Kris A Reedquist
- University Medical Center Utrecht, University of Utrecht, Utrecht, The Netherlands
| | - Timothy R Radstake
- University Medical Center Utrecht, University of Utrecht, Utrecht, The Netherlands
| | - Samuel García
- University Medical Center Utrecht, University of Utrecht, Utrecht, The Netherlands
| |
Collapse
|
24
|
Lomelí-Nieto JA, Muñoz-Valle JF, Baños-Hernández CJ, Navarro-Zarza JE, Ramírez-Dueñas MG, Sánchez-Hernández PE, Machado-Sulbaran AC, Parra-Rojas I, García-Chagollán M, Hernández-Bello J. TNFA -308G>A and -238G>A polymorphisms and risk to systemic sclerosis: impact on TNF-α serum levels, TNFA mRNA expression, and autoantibodies. Clin Exp Med 2019; 19:439-447. [PMID: 31353423 DOI: 10.1007/s10238-019-00569-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Accepted: 07/08/2019] [Indexed: 12/22/2022]
Abstract
Systemic sclerosis (SSc) is a rare autoimmune disease with high mortality, characterized by chronic inflammation and fibrosis, which are processes associated with higher serum tumor necrosis factor-α (sTNF-α) levels. TNFA -308G>A and -238G>A polymorphisms have been associated with higher sTNF-α levels. In this study, we genotyped the TNFA -308G>A and -238G>A polymorphisms in 53 SSc patients and 115 unrelated control subjects (CS) from southern Mexico. The TNFA mRNA expression and sTNF-α levels were also quantified by qPCR and enzyme-linked immunosorbent assays, respectively. TNFA -308GA genotype was associated with disease susceptibility according to a codominant genetic model (OR = 3.2, 95% CI 1.05-9.75, p = 0.03), and with higher anti-fibrillarin antibodies (p = 0.01), and higher skin thickening (p = 0.006). TNFA -238GA was not associated with SSc risk. TNFA mRNA expression and sTNF-α levels were similar between SSc patients and CS and were not statistically associated with the TNFA polymorphisms; however, a correlation (rho = 0.362, p = 0.009) between sTNF-α levels with anti-RNA polymerase III antibodies was observed in the SSc patients. In conclusion, the -308G>A polymorphism is a genetic marker of SSc susceptibility in population from southern Mexico, and it is associated with skin thickening and anti-fibrillarin antibodies. In addition, sTNF-α levels correlate positively with the anti-RNA pol III antibodies levels.
Collapse
Affiliation(s)
- José Alvaro Lomelí-Nieto
- Instituto de Investigación en Ciencias Biomédicas, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Sierra Mojada 950, Independencia Oriente, 44340, Guadalajara, Jalisco, Mexico.,Instituto Transdisciplinar de Investigación y Servicios, Universidad de Guadalajara, Zapopan, Jalisco, Mexico
| | - José Francisco Muñoz-Valle
- Instituto de Investigación en Ciencias Biomédicas, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Sierra Mojada 950, Independencia Oriente, 44340, Guadalajara, Jalisco, Mexico.,Instituto Transdisciplinar de Investigación y Servicios, Universidad de Guadalajara, Zapopan, Jalisco, Mexico
| | | | - José Eduardo Navarro-Zarza
- Departamento de Medicina Interna/Reumatología, Hospital General de Chilpancingo "Dr. Raymundo Abarca Alarcón", Chilpancingo de los Bravo, Guerrero, Mexico
| | - María Guadalupe Ramírez-Dueñas
- Laboratorio de Inmunología, Departamento de Fisiología, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Jalisco, Mexico
| | - Pedro Ernesto Sánchez-Hernández
- Laboratorio de Inmunología, Departamento de Fisiología, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Jalisco, Mexico
| | - Andrea Carolina Machado-Sulbaran
- Laboratorio de Inmunología, Departamento de Fisiología, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Jalisco, Mexico
| | - Isela Parra-Rojas
- Facultad de Ciencias Químico-Biológicas, Universidad Autónoma de Guerrero, Chilpancingo, Guerrero, Mexico
| | - Mariel García-Chagollán
- Instituto de Investigación en Ciencias Biomédicas, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Sierra Mojada 950, Independencia Oriente, 44340, Guadalajara, Jalisco, Mexico
| | - Jorge Hernández-Bello
- Instituto de Investigación en Ciencias Biomédicas, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Sierra Mojada 950, Independencia Oriente, 44340, Guadalajara, Jalisco, Mexico. .,Instituto Transdisciplinar de Investigación y Servicios, Universidad de Guadalajara, Zapopan, Jalisco, Mexico.
| |
Collapse
|
25
|
Protopsaltis NJ, Liang W, Nudleman E, Ferrara N. Interleukin-22 promotes tumor angiogenesis. Angiogenesis 2019; 22:311-323. [PMID: 30539314 DOI: 10.1007/s10456-018-9658-x] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2018] [Accepted: 12/07/2018] [Indexed: 01/08/2023]
Abstract
TH17 cells play important yet complex roles in cancer development and progression. We previously reported that TH17 cells and IL-17 mediate resistance to anti-VEGF therapy by inducing recruitment of immunosuppressive and proangiogenic myeloid cells to the tumor microenvironment. Here, we demonstrate that IL-22, a key effector cytokine expressed by TH17 cells, directly acts on endothelial cells to promote tumor angiogenesis. IL-22 induces endothelial cell proliferation, survival, and chemotaxis in vitro and neovascularization in an ex vivo mouse choroid explant model. Blockade of IL-22, with a neutralizing antibody, significantly inhibits tumor growth associated with reduced microvascular density. No synergistic effect of IL-22 with VEGF was observed. These results identify IL-22 as a potential therapeutic target for blocking tumor angiogenesis.
Collapse
Affiliation(s)
| | - Wei Liang
- Moores Cancer Center, University of California San Diego, La Jolla, CA, 92093, USA
| | - Eric Nudleman
- Shiley Eye Institute, University of California San Diego, La Jolla, CA, USA
| | - Napoleone Ferrara
- Moores Cancer Center, University of California San Diego, La Jolla, CA, 92093, USA.
| |
Collapse
|
26
|
Leyva-Castillo JM, Yoon J, Geha RS. IL-22 promotes allergic airway inflammation in epicutaneously sensitized mice. J Allergy Clin Immunol 2019; 143:619-630.e7. [PMID: 29920352 PMCID: PMC6298864 DOI: 10.1016/j.jaci.2018.05.032] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Revised: 04/09/2018] [Accepted: 05/29/2018] [Indexed: 11/24/2022]
Abstract
BACKGROUND Serum IL-22 levels are increased in patients with atopic dermatitis, which commonly precedes asthma in the atopic march. Epicutaneous sensitization in mice results in TH2-dominated skin inflammation that mimics atopic dermatitis and sensitizes the airways for antigen challenge-induced allergic inflammation characterized by the presence of both eosinophils and neutrophils. Epicutaneous sensitization results in increased serum levels of IL-22. OBJECTIVE We sought to determine the role of IL-22 in antigen-driven airway allergic inflammation after inhalation challenge in epicutaneously sensitized mice. METHODS Wild-type (WT) and Il22-/- mice were sensitized epicutaneously or immunized intraperitoneally with ovalbumin (OVA) and challenged intranasally with antigen. OVA T-cell receptor-specific T cells were TH22 polarized in vitro. Airway inflammation, mRNA levels in the lungs, and airway hyperresponsiveness (AHR) were examined. RESULTS Epicutaneous sensitization preferentially elicited an IL-22 response compared with intraperitoneal immunization. Intranasal challenge of mice epicutaneously sensitized with OVA elicited in the lungs Il22 mRNA expression, IL-22 production, and accumulation of CD3+CD4+IL-22+ T cells that coexpressed IL-17A and TNF-α. Epicutaneously sensitized Il22-/- mice exhibited diminished eosinophil and neutrophil airway infiltration and decreased AHR after intranasal OVA challenge. Production of IL-13, IL-17A, and TNF-α was normal, but IFN-γ production was increased in lung cells from airway-challenged and epicutaneously sensitized Il22-/- mice. Intranasal instillation of IFN-γ-neutralizing antibody partially reversed the defect in eosinophil recruitment. WT recipients of TH22-polarized WT, but not IL-22-deficient, T-cell receptor OVA-specific T cells, which secrete both IL-17A and TNF-α, had neutrophil-dominated airway inflammation and AHR on intranasal OVA challenge. Intranasal instillation of IL-22 with TNF-α, but not IL-17A, elicited neutrophil-dominated airway inflammation and AHR in WT mice, suggesting that loss of IL-22 synergy with TNF-α contributed to defective recruitment of neutrophils into the airways of Il22-/- mice. TNF-α, but not IL-22, blockade at the time of antigen inhalation challenge inhibited airway inflammation in epicutaneously sensitized mice. CONCLUSION Epicutaneous sensitization promotes generation of antigen-specific IL-22-producing T cells that promote airway inflammation and AHR after antigen challenge, suggesting that IL-22 plays an important role in the atopic march.
Collapse
Affiliation(s)
- Juan Manuel Leyva-Castillo
- Division of Immunology, Children's Hospital and Department of Pediatrics, Harvard Medical School, Boston, Mass
| | - Juhan Yoon
- Division of Immunology, Children's Hospital and Department of Pediatrics, Harvard Medical School, Boston, Mass
| | - Raif S Geha
- Division of Immunology, Children's Hospital and Department of Pediatrics, Harvard Medical School, Boston, Mass.
| |
Collapse
|
27
|
Miyazaki Y, Nakayamada S, Kubo S, Nakano K, Iwata S, Miyagawa I, Ma X, Trimova G, Sakata K, Tanaka Y. Th22 Cells Promote Osteoclast Differentiation via Production of IL-22 in Rheumatoid Arthritis. Front Immunol 2018; 9:2901. [PMID: 30619268 PMCID: PMC6295478 DOI: 10.3389/fimmu.2018.02901] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 11/26/2018] [Indexed: 12/29/2022] Open
Abstract
T helper (Th) cells can differentiate into functionally distinct subsets and play a pivotal role in inflammatory and autoimmune diseases such as rheumatoid arthritis (RA). Th22 cells have been identified as a new subset secreting interleukin (IL)-22. Although elevated levels of IL-22 in the synovial fluids of RA patients were reported, its pathological roles remain unclear. Here, we demonstrated that IL-22 was characteristically produced from CD3+CD4+CC-chemokine receptor (CCR)4+CCR6+CCR10+ cells and their ability of the production of IL-22 markedly exceeded that of other Th subsets and the subset, thereby, designated Th22 cells. Th22 cells were efficiently induced by the stimulation with tumor necrosis factor-α, IL-6, and IL-1β. Th22 cells were markedly infiltrated in synovial tissue in patients with active RA, but not in patients with osteoarthritis (OA). CCL17, CCL20, and CCL28, which are chemokine ligands of CCR4, CCR6, and CCR10, respectively, were abundantly expressed in RA synovial tissue compared to OA. By in vitro Trans-well migration assay, Th22 cells efficiently migrated toward CCL28. Co-culture of Th22 cells, which were sorted from peripheral blood, with monocytes in the presence of macrophage colony-stimulating factor and receptor activator of nuclear factor (NF)-κB ligand induced osteoclasts formation more efficiently than that of either Th1 cells or Th17 cells. Furthermore, IL-22 markedly augmented osteoclast differentiation by promoting nuclear factor of activated T cells c1 expression in CD14+ monocytes. Contrarily, the addition of IFN-γ to the culture significantly decreased osteoclasts number, whereas IL-17 had marginal effects. IL-22 neutralizing antibody inhibited osteoclast formation in the co-culture of Th22 cells with CD14+ monocytes. Collectively, the results indicated that Th22 cells, which co-express chemokine receptors CCR4, CCR6, and CCR10, possess strong potency of tissue migration and accumulate into inflamed synovial tissues where the ligands such as CCL28 are highly expressed. Thus, Th22 cells have the capacity to promote osteoclast differentiation through production of IL-22 and thus play a pivotal role in bone destruction in patients with RA.
Collapse
MESH Headings
- Adult
- Aged
- Aged, 80 and over
- Arthritis, Rheumatoid/complications
- Arthritis, Rheumatoid/immunology
- Arthritis, Rheumatoid/pathology
- Arthritis, Rheumatoid/surgery
- Arthroplasty, Replacement, Knee
- Cell Differentiation/immunology
- Cells, Cultured
- Chemokines, CC/immunology
- Chemokines, CC/metabolism
- Coculture Techniques
- Humans
- Interleukins/immunology
- Interleukins/metabolism
- Male
- Middle Aged
- Osteoarthritis/immunology
- Osteoarthritis/pathology
- Osteoarthritis/surgery
- Osteoclasts/physiology
- Primary Cell Culture
- Receptors, Chemokine/immunology
- Receptors, Chemokine/metabolism
- Synovial Membrane/cytology
- Synovial Membrane/immunology
- Synovial Membrane/pathology
- T-Lymphocyte Subsets/immunology
- T-Lymphocyte Subsets/metabolism
- T-Lymphocytes, Helper-Inducer/immunology
- T-Lymphocytes, Helper-Inducer/metabolism
- Interleukin-22
Collapse
Affiliation(s)
- Yusuke Miyazaki
- The First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health Japan, Kitakyushu, Japan
| | - Shingo Nakayamada
- The First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health Japan, Kitakyushu, Japan
| | - Satoshi Kubo
- The First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health Japan, Kitakyushu, Japan
| | - Kazuhisa Nakano
- The First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health Japan, Kitakyushu, Japan
| | - Shigeru Iwata
- The First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health Japan, Kitakyushu, Japan
| | - Ippei Miyagawa
- The First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health Japan, Kitakyushu, Japan
| | - Xiaoxue Ma
- The First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health Japan, Kitakyushu, Japan
- Department of Pediatrics, The First Hospital of China Medical University, Shenyang, China
| | - Gulzhan Trimova
- The First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health Japan, Kitakyushu, Japan
| | - Kei Sakata
- The First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health Japan, Kitakyushu, Japan
- Research Unit Immunology & Inflammation, Innovative Research Division, Mitsubishi Tanabe Pharma, Yokohama, Japan
| | - Yoshiya Tanaka
- The First Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health Japan, Kitakyushu, Japan
| |
Collapse
|
28
|
Gan L, Li X, Zhu M, Chen C, Luo H, Zhou Q. Acteoside relieves mesangial cell injury by regulating Th22 cell chemotaxis and proliferation in IgA nephropathy. Ren Fail 2018; 40:364-370. [PMID: 29708439 PMCID: PMC6014492 DOI: 10.1080/0886022x.2018.1450762] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 11/21/2017] [Accepted: 03/06/2018] [Indexed: 12/30/2022] Open
Abstract
The existing therapies of IgA nephropathy are unsatisfying. Acteoside, the main component of Rehmannia glutinosa with anti-inflammatory and anti-immune effects, can improve urinary protein excretion and immune disorder. Th22 cell is involved in IgA nephropathy progression. This study was determined to explore the effect of acteoside on mesangial injury underlying Th22 cell disorder in IgA nephropathy. Serum Th22 cells and urine total protein of patients with IgA nephropathy were measured before and after six months treatment of Rehmannia glutinosa acteoside or valsartan. Chemotactic assay and co-culture assay were performed to investigate the effect of acteoside on Th22 cell chemotaxis and differentiation. The expression of CCL20, CCL22 and CCL27 were analyzed. To explore the effect of acteoside on mesangial cell injury induced by inflammation, IL-1, IL-6, TNF-α and TGF-β1 were tested. Results showed that the proteinuria and Th22 lymphocytosis of patients with IgA nephropathy significantly improved after combination treatment of Rehmannia glutinosa acteoside and valsartan, compared with valsartan monotherapy. In vitro study further demonstrated that acteoside inhibit Th22 cell chemotaxis by suppressing the production of Th22 cell attractive chemokines, i.e., CCL20, CCL22 and CCL27. In addition, acteoside inhibited the Th22 cell proliferation. Co-culture assay proved that acteoside could relieve the overexpression of pro-inflammatory cytokines, and prevent the synthesis of TGF-β1. TGF-β1 level in mesangial cells was positively correlated with the Th22 cell. This research demonstrated that acteoside can alleviate mesangial cell inflammatory injury by modulating Th22 lymphocytes chemotaxis and proliferation.
Collapse
Affiliation(s)
- Lu Gan
- Department of Nephrology, First People’s Hospital of Yunnan Province, Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Xiaozhao Li
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Mengyuan Zhu
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Chen Chen
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Huimin Luo
- Department of Nephrology, First People’s Hospital of Yunnan Province, Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Qiaoling Zhou
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| |
Collapse
|
29
|
Gartlan KH, Bommiasamy H, Paz K, Wilkinson AN, Owen M, Reichenbach DK, Banovic T, Wehner K, Buchanan F, Varelias A, Kuns RD, Chang K, Fedoriw Y, Shea T, Coghill J, Zaiken M, Plank MW, Foster PS, Clouston AD, Blazar BR, Serody JS, Hill GR. A critical role for donor-derived IL-22 in cutaneous chronic GVHD. Am J Transplant 2018; 18:810-820. [PMID: 28941323 PMCID: PMC5866168 DOI: 10.1111/ajt.14513] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Revised: 09/07/2017] [Accepted: 09/16/2017] [Indexed: 01/25/2023]
Abstract
Graft-versus-host disease (GVHD) is the major cause of nonrelapse morbidity and mortality after allogeneic stem cell transplantation (allo-SCT). Prevention and treatment of GVHD remain inadequate and commonly lead to end-organ dysfunction and opportunistic infection. The role of interleukin (IL)-17 and IL-22 in GVHD remains uncertain, due to an apparent lack of lineage fidelity and variable and contextually determined protective and pathogenic effects. We demonstrate that donor T cell-derived IL-22 significantly exacerbates cutaneous chronic GVHD and that IL-22 is produced by highly inflammatory donor CD4+ T cells posttransplantation. IL-22 and IL-17A derive from both independent and overlapping lineages, defined as T helper (Th)22 and IL-22+ Th17 cells. Donor Th22 and IL-22+ Th17 cells share a similar IL-6-dependent developmental pathway, and while Th22 cells arise independently of the IL-22+ Th17 lineage, IL-17 signaling to donor Th22 directly promotes their development in allo-SCT. Importantly, while both IL-22 and IL-17 mediate skin GVHD, Th17-induced chronic GVHD can be attenuated by IL-22 inhibition in preclinical systems. In the clinic, high levels of both IL-17A and IL-22 expression are present in the skin of patients with GVHD after allo-SCT. Together, these data demonstrate a key role for donor-derived IL-22 in patients with chronic skin GVHD and confirm parallel but symbiotic developmental pathways of Th22 and Th17 differentiation.
Collapse
Affiliation(s)
- Kate H Gartlan
- Immunology Department, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
- School of Medicine, University of Queensland, Brisbane, QLD, Australia
| | - Hemamalini Bommiasamy
- Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC, USA
| | - Katelyn Paz
- Department of Pediatrics, University of Minnesota Cancer Center, Minneapolis, MN, USA
| | - Andrew N Wilkinson
- Immunology Department, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
- School of Medicine, University of Queensland, Brisbane, QLD, Australia
| | - Mary Owen
- Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC, USA
| | - Dawn K Reichenbach
- Department of Pediatrics, University of Minnesota Cancer Center, Minneapolis, MN, USA
| | - Tatjana Banovic
- Immunology Department, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
- The Department of Clinical Immunology and Allergy, Royal Adelaide Hospital, Adelaide, SA, Australia
| | - Kimberly Wehner
- Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC, USA
| | - Faith Buchanan
- Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC, USA
| | - Antiopi Varelias
- Immunology Department, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
- School of Medicine, University of Queensland, Brisbane, QLD, Australia
| | - Rachel D Kuns
- Immunology Department, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
| | - Karshing Chang
- Immunology Department, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
| | - Yuri Fedoriw
- Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC, USA
| | - Thomas Shea
- Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC, USA
| | - James Coghill
- Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC, USA
| | - Michael Zaiken
- Department of Pediatrics, University of Minnesota Cancer Center, Minneapolis, MN, USA
| | - Maximilian W Plank
- Hunter Medical Research Institute, University of Newcastle, Callaghan, NSW, Australia
| | - Paul S Foster
- Hunter Medical Research Institute, University of Newcastle, Callaghan, NSW, Australia
| | | | - Bruce R Blazar
- Department of Pediatrics, University of Minnesota Cancer Center, Minneapolis, MN, USA
| | - Jonathan S Serody
- Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC, USA
| | - Geoffrey R Hill
- Immunology Department, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
- Royal Brisbane and Women's Hospital, Brisbane, QLD, Australia
| |
Collapse
|
30
|
Moy AP, Maryamchik E, Nikolskaia OV, Nazarian RM. Th1- and Th17-polarized immune infiltrates in eosinophilic fasciitis-A potential marker for histopathologic distinction from morphea. J Cutan Pathol 2018; 44:548-552. [PMID: 28393380 DOI: 10.1111/cup.12947] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 04/05/2017] [Accepted: 04/06/2017] [Indexed: 12/17/2022]
Abstract
BACKGROUND Morphea (localized scleroderma) and eosinophilic fasciitis (EF) are rare fibrosing disorders which may present a diagnostic challenge. While histopathologic features are often distinct, in some cases there may be overlap. T-cells contribute to etiopathogenesis of both autoimmune conditions. We sought to determine whether T-cell immune polarization enables histopathologic distinction. MATERIALS & METHODS We retrospectively examined clinicopathologically confirmed cases of morphea (n = 12) and EF (n = 8) using immunohistochemistry for CD3, CD8, and dual staining for CD4 with T-bet, GATA-3, STAT-3 or BNC-2 (transcription factors reported to be specific and mutually exclusive for Th1, Th2, Th17 and Th22 cells, respectively) to characterize the T-cell infiltrate. RESULTS No significant difference in CD3+ cells was identified (P = .195), however, the CD4/CD8+ T-cell ratio was significantly greater in morphea compared to EF (1.2 and 0.6, respectively; P = .034). Th1/Th2 was significantly lower in morphea compared to EF (1.7 and 2.7, respectively; P = .027). The percent of Th17+ cells was significantly higher in EF (P = 0.041). No significant difference in percent of Th22+ cells was identified. CONCLUSION Morphea and EF may be histopathologically distinguished based on helper T-cell subtype polarization. These findings offer novel insight into our understanding of disease pathogenesis and support a role for Th1/Th2 immune regulation and Th17 inhibition in anti-fibrotic therapeutic strategy.
Collapse
Affiliation(s)
- Andrea Primiani Moy
- Pathology Service, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Elena Maryamchik
- Pathology Service, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Olga V Nikolskaia
- Pathology Service, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Rosalynn M Nazarian
- Pathology Service, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| |
Collapse
|
31
|
Gonçalves RSG, Pereira MC, Dantas AT, Almeida ARD, Marques CDL, Rego MJBM, Pitta IR, Duarte ALBP, Pitta MGR. IL-17 and related cytokines involved in systemic sclerosis: Perspectives. Autoimmunity 2017; 51:1-9. [PMID: 29256263 DOI: 10.1080/08916934.2017.1416467] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Systemic sclerosis (SSc) is a multisystemic, complex, and rare disease of connective tissue, with high morbidity and mortality, and without specific treatment. The disease is characterized by three main principles: vascular disease, autoantibody production and inflammation, and fibrosis. Since it is well defined that SSc is characterized by elevated production of TGF-β, IL-6, and IL-1, all of them cytokines related to Th17 differentiation, the hypothesis is that this disease may be strongly related to a polarization of the immune response towards the Th17 pathway. Considering the importance of a better understanding of the pathophysiology of Th17 pathway in SSc, this article aims to propose an update for a better understanding of current knowledge on main cytokines secreted by the Th17 cells (IL-17 A, IL-21, and IL-22) and the future prospects in the current disease.
Collapse
Affiliation(s)
- Rafaela Silva Guimarães Gonçalves
- a Hospital das Clínicas de Pernambuco , Universidade Federal de Pernambuco , Recife , Brazil.,b Laboratório de Imunomodulação e Novas Abordagens Terapêuticas Suely Galdino , Universidade Federal de Pernambuco , Recife , Brazil
| | - Michelly C Pereira
- b Laboratório de Imunomodulação e Novas Abordagens Terapêuticas Suely Galdino , Universidade Federal de Pernambuco , Recife , Brazil
| | - Andréa Tavares Dantas
- a Hospital das Clínicas de Pernambuco , Universidade Federal de Pernambuco , Recife , Brazil.,b Laboratório de Imunomodulação e Novas Abordagens Terapêuticas Suely Galdino , Universidade Federal de Pernambuco , Recife , Brazil
| | - Anderson Rodrigues de Almeida
- b Laboratório de Imunomodulação e Novas Abordagens Terapêuticas Suely Galdino , Universidade Federal de Pernambuco , Recife , Brazil
| | | | - Moacyr J B M Rego
- b Laboratório de Imunomodulação e Novas Abordagens Terapêuticas Suely Galdino , Universidade Federal de Pernambuco , Recife , Brazil
| | - Ivan R Pitta
- b Laboratório de Imunomodulação e Novas Abordagens Terapêuticas Suely Galdino , Universidade Federal de Pernambuco , Recife , Brazil
| | - Angela Luzia Branco Pinto Duarte
- a Hospital das Clínicas de Pernambuco , Universidade Federal de Pernambuco , Recife , Brazil.,b Laboratório de Imunomodulação e Novas Abordagens Terapêuticas Suely Galdino , Universidade Federal de Pernambuco , Recife , Brazil
| | - Maira Galdino R Pitta
- b Laboratório de Imunomodulação e Novas Abordagens Terapêuticas Suely Galdino , Universidade Federal de Pernambuco , Recife , Brazil
| |
Collapse
|
32
|
Gan L, Zhou Q, Li X, Chen C, Meng T, Pu J, Zhu M, Xiao C. Intrinsic renal cells induce lymphocytosis of Th22 cells from IgA nephropathy patients through B7–CTLA-4 and CCL-CCR pathways. Mol Cell Biochem 2017; 441:191-199. [DOI: 10.1007/s11010-017-3185-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Accepted: 09/01/2017] [Indexed: 01/08/2023]
|
33
|
Yang Y, Yang SB, Wang YG, Zhang SH, Yu ZF, Tang TT. Bacterial inhibition potential of quaternised chitosan-coated VICRYL absorbable suture: An in vitro and in vivo study. J Orthop Translat 2017; 8:49-61. [PMID: 30035094 PMCID: PMC5987056 DOI: 10.1016/j.jot.2016.10.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Revised: 10/05/2016] [Accepted: 10/12/2016] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND/OBJECTIVE As a widely used absorbable suture with antibacterial property, triclosan- coated polyglactin suture (Vicryl Plus) has been extensively utilized to reduce the occurrence rate of surgical site infections (SSIs) in orthopaedic surgery. However, the potential toxicity and side-effects of triclosan raised increasing concerns about its biological safety. This study aimed to investigate the antimicrobial activity and biocompatibility of quaternised chitosan-coated Vicryl suture (HV) both in vitro and in vivo. METHODS In this study, a modified chitosan derivate, (hydroxypropyltrimethyl ammonium chloride chitosan, HACC), was coated over the surface of the absorbable Vicryl suture. Two standard bacteria strains, Staphylococcus epidermidis (ATCC35984) and methicillin-resistant Staphylococcus aureus (ATCC43300), were selected to evaluate bacterial adhesion and biofilm formation on the sutures at 6, 24 and 48 h in vitro. Additionally, human skin-derived fibroblasts cells were used to test the cytocompatibility of the sutures. Furtherly, sutures contaminated with methicillin-resistant S. aureus were implanted subcutaneously in SD rats in order to confirm the in vivo antibacterial performance and biocompatibility. RESULTS We found that HACC-coated Vicryl suture (HV) exhibited significant anti-bacterial effects on the two tested strains. The bacterial attachment and biofilm formation on the surface of the HV sutures were found to be comparable to that of Vicryl Plus sutures (VP). Moreover, all the four tested sutures presented good cytocompatibility with human skin-derived fibroblasts cells. Histology and immunohistochemistry results indicated that the infections and inflammations were significantly inhibited around the HV and VP sutures. CONCLUSION In general, the present study demonstrated that the quaternised chitosan coating is a flexible and cost-effective alternative strategy to prevent the suture related surgical site infections in orthopaedic practices.
Collapse
Affiliation(s)
| | | | | | | | | | - Ting-Ting Tang
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, People's Republic of China
| |
Collapse
|
34
|
Barone F, Gardner DH, Nayar S, Steinthal N, Buckley CD, Luther SA. Stromal Fibroblasts in Tertiary Lymphoid Structures: A Novel Target in Chronic Inflammation. Front Immunol 2016; 7:477. [PMID: 27877173 PMCID: PMC5100680 DOI: 10.3389/fimmu.2016.00477] [Citation(s) in RCA: 108] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Accepted: 10/20/2016] [Indexed: 12/14/2022] Open
Abstract
Tertiary lymphoid structures (TLS) are organized aggregates of lymphocytes, myeloid, and stromal cells that provide ectopic hubs for acquired immune responses. TLS share phenotypical and functional features with secondary lymphoid organs (SLO); however, they require persistent inflammatory signals to arise and are often observed at target sites of autoimmune disease, chronic infection, cancer, and organ transplantation. Over the past 10 years, important progress has been made in our understanding of the role of stromal fibroblasts in SLO development, organization, and function. A complex and stereotyped series of events regulate fibroblast differentiation from embryonic life in SLOs to lymphoid organ architecture observed in adults. In contrast, TLS-associated fibroblasts differentiate from postnatal, locally activated mesenchyme, predominantly in settings of inflammation and persistent antigen presentation. Therefore, there are critical differences in the cellular and molecular requirements that regulate SLO versus TLS development that ultimately impact on stromal and hematopoietic cell function. These differences may contribute to the pathogenic nature of TLS in the context of chronic inflammation and malignant transformation and offer a window of opportunity for therapeutic interventions in TLS associated pathologies.
Collapse
Affiliation(s)
- Francesca Barone
- Rheumatology Research Group, Institute of Inflammation and Ageing, University of Birmingham , Birmingham , UK
| | - David H Gardner
- Rheumatology Research Group, Institute of Inflammation and Ageing, University of Birmingham , Birmingham , UK
| | - Saba Nayar
- Rheumatology Research Group, Institute of Inflammation and Ageing, University of Birmingham , Birmingham , UK
| | - Nathalie Steinthal
- Rheumatology Research Group, Institute of Inflammation and Ageing, University of Birmingham , Birmingham , UK
| | - Christopher D Buckley
- Rheumatology Research Group, Institute of Inflammation and Ageing, University of Birmingham , Birmingham , UK
| | - Sanjiv A Luther
- Department of Biochemistry, Center for Immunity and Infection, University of Lausanne , Lausanne , Switzerland
| |
Collapse
|
35
|
Wang Z, Hu Z, Zhang D, Zhuo M, Cheng J, Xu X, Xing Y, Fan J. Silencing tumor necrosis factor-alpha in vitro from small interfering RNA-decorated titanium nanotube array can facilitate osteogenic differentiation of mesenchymal stem cells. Int J Nanomedicine 2016; 11:3205-14. [PMID: 27478375 PMCID: PMC4951061 DOI: 10.2147/ijn.s104090] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Titanium implants are known for their bone bonding ability. However, the osseointegration may be severely disturbed in the inflammation environment. In order to enhance osseointegration of the implant in an inflamed environment, the small interfering RNA (siRNA) targeting tumor necrosis factor alpha (TNF-α) was used to functionalize titanium surface for gene silencing. The chitosan–tripolyphosphate–hyaluronate complexes were used to formulate nanoparticles (NPs) with siRNA, which were adsorbed directly by the anodized titanium surface. The surface characterization was analyzed by scanning electron microscope, atomic force microscopy, as well as contact angle measurement. The fluorescence microscope was used to monitor the degradation of the layer. The coculture system was established with mesenchymal stem cells (MSCs) grown directly on functionalized titanium surface and RAW264.7 cells (preactivated by lipopolysaccharide) grown upside in a transwell chamber. The transfection and knockdown efficiency of TNF-α in RAW264.7 cells were determined by fluorescence microscope, quantitative polymerase chain reaction, and enzyme-linked immunosorbent assay. The cytoskeleton and osteogenic differentiation of MSCs were also analyzed. Regular vertical aligned nanotubes (~100 nm diameter and ~300 nm length) were generated after anodization of polished titanium. After loading with NPs, the nanotubes were filled and covered by a layer of amorphous particles. The surface topography changed and wettability decreased after covering with NPs. As expected, a burst degradation of the film was observed, which could provide sufficient NPs in the released supernatant and result in transfection and knockdown effects in RAW264.7 cells. The cytoskeleton arrangement of MSCs was elongated and the osteogenic differentiation was also significantly improved on NPs loading surface. In conclusion, the siRNA decorated titanium implant could simultaneously suppress inflammation and improve osteogenesis, which may be suitable for peri-implant bone formation under inflammatory conditions.
Collapse
Affiliation(s)
| | - Zhiqiang Hu
- Department of Otorhinolaryngology, No 113 Hospital of PLA, Ningbo
| | - Dawei Zhang
- Department of Orthopaedics, Xijing Hospital of PLA, Xi'an, People's Republic of China
| | | | | | | | | | - Jie Fan
- Department of Otorhinolaryngology, No 113 Hospital of PLA, Ningbo
| |
Collapse
|
36
|
New insights into CD4(+) T cell abnormalities in systemic sclerosis. Cytokine Growth Factor Rev 2015; 28:31-6. [PMID: 26724976 DOI: 10.1016/j.cytogfr.2015.12.002] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Revised: 10/31/2015] [Accepted: 12/07/2015] [Indexed: 12/21/2022]
Abstract
Systemic sclerosis (SSc) is an autoimmune connective tissue disease that is characterized by vasculopathy and excessive deposition of extracellular matrix, which causes fibrosis of the skin and internal organs and eventually leads to multiorgan dysfunction. Studies have shown that CD4(+) T cell activation is a key factor in the pathogenesis of scleroderma because activated T cells can release various cytokines, resulting in inflammation, microvascular damage and fibrosis. T helper cell 17 (Th17) and regulatory T (Treg) cell activities are a hallmark SSc, as Th17-type cytokines can induce both inflammation and fibrosis. More recently, several studies have reported new T cell subsets, including Th9 and Th22 cells, along with their respective cytokines in the peripheral blood, serum and skin lesions of individuals with SSc. Herein, we review recent data on various CD4(+) T helper cell subsets in SSc, and discuss potential roles of these cells in promoting inflammation and fibrosis.
Collapse
|