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Deshmukh M, Subhash S, Hu Z, Mohammad M, Jarneborn A, Pullerits R, Jin T, Kopparapu PK. Gene expression of S100a8/a9 predicts Staphylococcus aureus-induced septic arthritis in mice. Front Microbiol 2023; 14:1146694. [PMID: 37396347 PMCID: PMC10307981 DOI: 10.3389/fmicb.2023.1146694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 05/26/2023] [Indexed: 07/04/2023] Open
Abstract
Septic arthritis is the most aggressive joint disease associated with high morbidity and mortality. The interplay of the host immune system with the invading pathogens impacts the pathophysiology of septic arthritis. Early antibiotic treatment is crucial for a better prognosis to save the patients from severe bone damage and later joint dysfunction. To date, there are no specific predictive biomarkers for septic arthritis. Transcriptome sequencing analysis identified S100a8/a9 genes to be highly expressed in septic arthritis compared to non-septic arthritis at the early course of infection in an Staphylococcus aureus septic arthritis mouse model. Importantly, downregulation of S100a8/a9 mRNA expression at the early course of infection was noticed in mice infected with the S. aureus Sortase A/B mutant strain totally lacking arthritogenic capacity compared with the mice infected with parental S. aureus arthritogenic strain. The mice infected intra-articularly with the S. aureus arthritogenic strain significantly increased S100a8/a9 protein expression levels in joints over time. Intriguingly, the synthetic bacterial lipopeptide Pam2CSK4 was more potent than Pam3CSK4 in inducing S100a8/a9 release upon intra-articular injection of these lipopeptides into the mouse knee joints. Such an effect was dependent on the presence of monocytes/macrophages. In conclusion, S100a8/a9 gene expression may serve as a potential biomarker to predict septic arthritis, enabling the development of more effective treatment strategies.
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Affiliation(s)
- Meghshree Deshmukh
- Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Santhilal Subhash
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, United States
| | - Zhicheng Hu
- Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Center for Clinical Laboratories, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Majd Mohammad
- Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Anders Jarneborn
- Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Rheumatology, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Rille Pullerits
- Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Clinical Immunology and Transfusion Medicine, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Tao Jin
- Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- Department of Rheumatology, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Pradeep Kumar Kopparapu
- Department of Rheumatology and Inflammation Research, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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2
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Noack M, Miossec P. Heterogeneous effects of S100 proteins during cell interactions between immune cells and stromal cells from synovium or skin. Clin Exp Immunol 2023; 212:276-284. [PMID: 36866451 PMCID: PMC10243843 DOI: 10.1093/cei/uxad035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 02/07/2023] [Accepted: 03/01/2023] [Indexed: 03/04/2023] Open
Abstract
Cell interactions represent an important mechanism involved in the pathogenesis of chronic inflammation. The key S100 proteins A8 and A9 have been studied in several models of chronic inflammatory diseases with highly heterogeneous conclusions. In this context, the aim of this study was to determine the role of cell interactions on S100 protein production and their effect on cytokine production during cell interactions, between immune and stromal cells from synovium or skin. Peripheral blood mononuclear cells (PBMC) were cultured alone or with synoviocytes or skin fibroblasts, with or without phytohemagglutinin, exogenous A8, A9, A8/A9 proteins or anti-A8/A9 antibody. Production of IL-6, IL-1β, IL-17, TNF, A8, A9, and A8/A9 was measured by ELISA. Cell interactions with synoviocytes had no effect on A8, A9, or A8/A9 secretion, while cell interactions with skin fibroblasts decreased A8 production. This highlights the importance of stromal cell origin. The addition of S100 proteins in co-cultures with synoviocytes did not increase the production of IL-6, IL-17, or IL-1β, except for an increase of IL-6 secretion with A8. The presence of anti-S100A8/A9 antibody did not show obvious effects. Low concentration or absence of serum in the culture medium decreased the production of IL-17, IL-6, and IL-1β but despite these conditions, the addition of S100 proteins did not increase cytokine secretion. In conclusion, the role of A8/A9 in cell interactions during chronic inflammation appears complex and heterogeneous, depending on multiple factors, notably the origin of stromal cells that can affect their secretion.
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Affiliation(s)
- Mélissa Noack
- Immunogenomics and Inflammation Research Unit, Edouard Herriot Hospital, Hospices Civils de Lyon, Lyon, France
| | - Pierre Miossec
- Immunogenomics and Inflammation Research Unit, Edouard Herriot Hospital, Hospices Civils de Lyon, Lyon, France
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3
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Wang X, Huang H, Sze KMF, Wang J, Tian L, Lu J, Tsui YM, Ma HT, Lee E, Chen A, Lee J, Wang Y, Yam JWP, Cheung TT, Guan X, Ng IOL. S100A10 promotes HCC development and progression via transfer in extracellular vesicles and regulating their protein cargos. Gut 2023:gutjnl-2022-327998. [PMID: 36631249 DOI: 10.1136/gutjnl-2022-327998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 12/22/2022] [Indexed: 01/13/2023]
Abstract
OBJECTIVE Growing evidence indicates that tumour cells exhibit characteristics similar to their lineage progenitor cells. We found that S100 calcium binding protein A10 (S100A10) exhibited an expression pattern similar to that of liver progenitor genes. However, the role of S100A10 in hepatocellular carcinoma (HCC) progression is unclear. Furthermore, extracellular vesicles (EVs) are critical mediators of tumourigenesis and metastasis, but the extracellular functions of S100A10, particularly those related to EVs (EV-S100A10), are unknown. DESIGN The functions and mechanisms of S100A10 and EV-S100A10 in HCC progression were investigated in vitro and in vivo. Neutralising antibody (NA) to S100A10 was used to evaluate the significance of EV-S100A10. RESULTS Functionally, S100A10 promoted HCC initiation, self-renewal, chemoresistance and metastasis in vitro and in vivo. Of significance, we found that S100A10 was secreted by HCC cells into EVs both in vitro and in the plasma of patients with HCC. S100A10-enriched EVs enhanced the stemness and metastatic ability of HCC cells, upregulated epidermal growth factor receptor (EGFR), AKT and ERK signalling, and promoted epithelial-mesenchymal transition. EV-S100A10 also functioned as a chemoattractant in HCC cell motility. Of significance, S100A10 governed the protein cargos in EVs and mediated the binding of MMP2, fibronectin and EGF to EV membranes through physical binding with integrin αⅤ. Importantly, blockage of EV-S100A10 with S100A10-NA significantly abrogated these enhancing effects. CONCLUSION Altogether, our results uncovered that S100A10 promotes HCC progression significantly via its transfer in EVs and regulating the protein cargoes of EVs. EV-S100A10 may be a potential therapeutic target and biomarker for HCC progression.
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Affiliation(s)
- Xia Wang
- Department of Pathology, University of Hong Kong Faculty of Medicine, Hong Kong, Hong Kong.,State Key Laboratory of Liver Research, The University of Hong Kong, Hong Kong, Hong Kong
| | - Hongyang Huang
- Department of Pathology, University of Hong Kong Faculty of Medicine, Hong Kong, Hong Kong.,State Key Laboratory of Liver Research, The University of Hong Kong, Hong Kong, Hong Kong
| | - Karen Man-Fong Sze
- Department of Pathology, University of Hong Kong Faculty of Medicine, Hong Kong, Hong Kong.,State Key Laboratory of Liver Research, The University of Hong Kong, Hong Kong, Hong Kong
| | - Jin Wang
- Liaoning University, Shenyang, Liaoning, China
| | - Lu Tian
- Department of Pathology, University of Hong Kong Faculty of Medicine, Hong Kong, Hong Kong.,State Key Laboratory of Liver Research, The University of Hong Kong, Hong Kong, Hong Kong
| | - Jingyi Lu
- Department of Pathology, University of Hong Kong Faculty of Medicine, Hong Kong, Hong Kong.,State Key Laboratory of Liver Research, The University of Hong Kong, Hong Kong, Hong Kong
| | - Yu-Man Tsui
- Department of Pathology, University of Hong Kong Faculty of Medicine, Hong Kong, Hong Kong.,State Key Laboratory of Liver Research, The University of Hong Kong, Hong Kong, Hong Kong
| | - Hoi Tang Ma
- Department of Pathology, University of Hong Kong Faculty of Medicine, Hong Kong, Hong Kong.,State Key Laboratory of Liver Research, The University of Hong Kong, Hong Kong, Hong Kong
| | - Eva Lee
- Department of Pathology, University of Hong Kong Faculty of Medicine, Hong Kong, Hong Kong.,State Key Laboratory of Liver Research, The University of Hong Kong, Hong Kong, Hong Kong
| | - Ao Chen
- Department of Pathology, University of Hong Kong Faculty of Medicine, Hong Kong, Hong Kong.,State Key Laboratory of Liver Research, The University of Hong Kong, Hong Kong, Hong Kong
| | - Joyce Lee
- Department of Pathology, University of Hong Kong Faculty of Medicine, Hong Kong, Hong Kong.,State Key Laboratory of Liver Research, The University of Hong Kong, Hong Kong, Hong Kong
| | - Ying Wang
- Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong, China
| | - Judy Wai Ping Yam
- Department of Pathology, University of Hong Kong Faculty of Medicine, Hong Kong, Hong Kong.,State Key Laboratory of Liver Research, The University of Hong Kong, Hong Kong, Hong Kong
| | - Tan-To Cheung
- State Key Laboratory of Liver Research, The University of Hong Kong, Hong Kong, Hong Kong.,Department of Surgery, The University of Hong Kong, Hong Kong, Hong Kong
| | - Xinyuan Guan
- State Key Laboratory of Liver Research, The University of Hong Kong, Hong Kong, Hong Kong.,Department of Clinical Oncology, The University of Hong Kong, Hong Kong, Hong Kong
| | - Irene Oi-Lin Ng
- Department of Pathology, University of Hong Kong Faculty of Medicine, Hong Kong, Hong Kong .,State Key Laboratory of Liver Research, The University of Hong Kong, Hong Kong, Hong Kong
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4
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Austermann J, Roth J, Barczyk-Kahlert K. The Good and the Bad: Monocytes' and Macrophages' Diverse Functions in Inflammation. Cells 2022; 11:cells11121979. [PMID: 35741108 PMCID: PMC9222172 DOI: 10.3390/cells11121979] [Citation(s) in RCA: 46] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 06/08/2022] [Accepted: 06/16/2022] [Indexed: 02/06/2023] Open
Abstract
Monocytes and macrophages are central players of the innate immune response and play a pivotal role in the regulation of inflammation. Thereby, they actively participate in all phases of the immune response, from initiating inflammation and triggering the adaptive immune response, through to the clearance of cell debris and resolution of inflammation. In this review, we described the mechanisms of monocyte and macrophage adaptation to rapidly changing microenvironmental conditions and discussed different forms of macrophage polarization depending on the environmental cues or pathophysiological condition. Therefore, special focus was placed on the tight regulation of the pro- and anti-inflammatory immune response, and the diverse functions of S100A8/S100A9 proteins and the scavenger receptor CD163 were highlighted, respectively. We paid special attention to the function of pro- and anti-inflammatory macrophages under pathological conditions.
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5
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Kim HD, Karna S, Shin Y, Vu H, Cho HJ, Kim S. S100A8 and S100A9 in saliva, blood and gingival crevicular fluid for screening established periodontitis: a cross-sectional study. BMC Oral Health 2021; 21:388. [PMID: 34372836 PMCID: PMC8351418 DOI: 10.1186/s12903-021-01749-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 07/19/2021] [Indexed: 12/31/2022] Open
Abstract
Background Periodontitis is one of major oral diseases, which has no consensus on early screening tool. This study aimed to compare the association and screening ability of S100A8 and S100A9 in saliva, blood and gingival crevicular fluid (GCF) for periodontitis status. Methods We recruited 149 community Korean adults, 50 no or initial periodontitis (NIPERIO) and 99 established periodontitis (PERIO). Using clinical attachment loss and a panoramic radiograph, stage II–IV of new classification of periodontitis proposed at 2018 was considered cases as PERIO. Enzyme linked immunosorbent assay kit was used to quantify S100A8 and S100A9. T-test, analysis of covariance, Mann–Whitney test and correlation analysis were applied to compare the relationship of S100A8 and S100A9 in saliva, blood, and GCF for periodontitis. Receiver operating characteristic curve was applied for screening ability. Results Among S100A8 and S100A9 in saliva, blood and GCF, S100A8 in saliva was significantly higher in PERIO than in NIPERIO (p < 0.05). However, S100A8 and S100A9 in GCF were higher in NIPERIO (p < 0.05). The screening ability of salivary S100A8 was 75% for PERIO, while that of GCF S100A8 was 74% for NIPERIO. Salivary S100A8 was positively correlated to blood S100A8 (p < 0.05). Conclusion Salivary S100A8 could be a potential diagnostic marker for established periodontitis and be useful for screening established periodontitis. Supplementary Information The online version contains supplementary material available at 10.1186/s12903-021-01749-z.
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Affiliation(s)
- Hyun-Duck Kim
- Department of Preventive and Social Dentistry, School of Dentistry, Seoul National University, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Korea. .,Dental Research Institute, Seoul National University, Seoul, Korea.
| | - Sandeep Karna
- Department of Preventive and Social Dentistry, School of Dentistry, Seoul National University, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Korea
| | - YooJin Shin
- Department of Preventive and Social Dentistry, School of Dentistry, Seoul National University, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Korea
| | - Huong Vu
- Department of Preventive and Social Dentistry, School of Dentistry, Seoul National University, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Korea
| | - Hyun-Jae Cho
- Department of Preventive and Social Dentistry, School of Dentistry, Seoul National University, 101, Daehak-ro, Jongno-gu, Seoul, 03080, Korea.,Dental Research Institute, Seoul National University, Seoul, Korea
| | - Sungtae Kim
- Dental Research Institute, Seoul National University, Seoul, Korea.,Department of Periodontology, Seoul National University Dental Hospital, Seoul, Korea
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6
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Wu CY, Yang HY, Huang JL, Lai JH. Signals and Mechanisms Regulating Monocyte and Macrophage Activation in the Pathogenesis of Juvenile Idiopathic Arthritis. Int J Mol Sci 2021; 22:ijms22157960. [PMID: 34360720 PMCID: PMC8347893 DOI: 10.3390/ijms22157960] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 07/18/2021] [Accepted: 07/20/2021] [Indexed: 12/13/2022] Open
Abstract
Monocytes (Mos) and macrophages (Mφs) are key players in the innate immune system and are critical in coordinating the initiation, expansion, and regression of many autoimmune diseases. In addition, they display immunoregulatory effects that impact inflammation and are essential in tissue repair and regeneration. Juvenile idiopathic arthritis (JIA) is an umbrella term describing inflammatory joint diseases in children. Accumulated evidence suggests a link between Mo and Mφ activation and JIA pathogenesis. Accordingly, topics regarding the signals and mechanisms regulating Mo and Mφ activation leading to pathologies in patients with JIA are of great interest. In this review, we critically summarize recent advances in the understanding of how Mo and Mφ activation is involved in JIA pathogenesis and focus on the signaling pathways and mechanisms participating in the related cell activation processes.
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Affiliation(s)
- Chao-Yi Wu
- Division of Allergy, Asthma, and Rheumatology, Department of Pediatrics, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan; (C.-Y.W.); (J.-L.H.)
- College of Medicine, Chang Gung University, Taoyuan 333, Taiwan;
| | - Huang-Yu Yang
- College of Medicine, Chang Gung University, Taoyuan 333, Taiwan;
- Department of Nephrology, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
| | - Jing-Long Huang
- Division of Allergy, Asthma, and Rheumatology, Department of Pediatrics, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan; (C.-Y.W.); (J.-L.H.)
- College of Medicine, Chang Gung University, Taoyuan 333, Taiwan;
- Department of Pediatrics, New Taipei Municipal TuCheng Hospital, New Taipei City 236, Taiwan
| | - Jenn-Haung Lai
- Division of Allergy, Immunology, and Rheumatology, Department of Internal Medicine, Chang Gung Memorial Hospital, Chang Gung University, Taoyuan 333, Taiwan
- National Defense Medical Center, Graduate Institute of Medical Science, Taipei 114, Taiwan
- Correspondence: ; Tel./Fax: +886-2-8791-8382
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7
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Defrêne J, Berrazouane S, Esparza N, Pagé N, Côté MF, Gobeil S, Aoudjit F, Tessier PA. Deletion of S100a8 and S100a9 Enhances Skin Hyperplasia and Promotes the Th17 Response in Imiquimod-Induced Psoriasis. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2021; 206:505-514. [PMID: 33361205 DOI: 10.4049/jimmunol.2000087] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Accepted: 11/26/2020] [Indexed: 02/04/2023]
Abstract
High concentrations of the damage-associated molecular patterns S100A8 and S100A9 are found in skin and serum from patients suffering from psoriasis, an IL-17-related disease. Notably, although the expression of these proteins correlates with psoriatic disease severity, the exact function of S100A8 and S100A9 in psoriasis pathogenesis remains unclear. In this study, we investigated the role of S100A8 and S100A9 in psoriasis-associated skin hyperplasia and immune responses using S100a8-/- and S100a9-/- mice in an imiquimod-induced model of psoriasis. We found that S100a8-/- and S100a9-/- psoriatic mice exhibit worsened clinical symptoms relative to wild-type mice and increased expression of S100A9 and S100A8 proteins in keratinocytes, respectively. In addition, the loss of S100A8 enhances proliferation of keratinocytes and disrupts keratinocyte differentiation. We further detected elevated production of IL-17A and -F from CD4+ T cells in the absence of S100A8 and S100A9, as well as increased infiltration of neutrophils in the skin. In addition, treatment with anti-IL-17A and -F was found to reduce psoriasis symptoms and skin hyperplasia in S100a8-/- and S100a9-/- mice. These data suggest that S100A8 and S100A9 regulate psoriasis by inhibiting production of IL-17A and -F, thereby, to our knowledge, providing new insights into their biological functions.
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Affiliation(s)
- Joan Defrêne
- Axe de Recherche sur les Maladies Infectieuses et Immunitaires, Centre de Recherche du Centre Hospitalier Universitaire de Québec-Université Laval, Quebec City, Quebec G1V 4G2, Canada
| | - Sofiane Berrazouane
- Axe de Recherche sur les Maladies Infectieuses et Immunitaires, Centre de Recherche du Centre Hospitalier Universitaire de Québec-Université Laval, Quebec City, Quebec G1V 4G2, Canada
| | - Nayeli Esparza
- Axe de Recherche sur les Maladies Infectieuses et Immunitaires, Centre de Recherche du Centre Hospitalier Universitaire de Québec-Université Laval, Quebec City, Quebec G1V 4G2, Canada
| | - Nathalie Pagé
- Axe de Recherche sur les Maladies Infectieuses et Immunitaires, Centre de Recherche du Centre Hospitalier Universitaire de Québec-Université Laval, Quebec City, Quebec G1V 4G2, Canada
| | - Marie-France Côté
- Axe Endocrinologie et Néphrologie, Centre de Recherche du Centre Hospitalier Universitaire de Québec-Université Laval, Quebec City, Quebec G1V 4G2, Canada
| | - Stéphane Gobeil
- Axe Endocrinologie et Néphrologie, Centre de Recherche du Centre Hospitalier Universitaire de Québec-Université Laval, Quebec City, Quebec G1V 4G2, Canada
- Département de Médecine Moléculaire, Faculté de Médecine, Université Laval, Quebec City, Quebec G1V 0A6, Canada; and
| | - Fawzi Aoudjit
- Axe de Recherche sur les Maladies Infectieuses et Immunitaires, Centre de Recherche du Centre Hospitalier Universitaire de Québec-Université Laval, Quebec City, Quebec G1V 4G2, Canada
- Département de Microbiologie-Infectiologie et d'Immunologie, Faculté de Médecine, Université Laval, Quebec City, Quebec G1V 0A6, Canada
| | - Philippe A Tessier
- Axe de Recherche sur les Maladies Infectieuses et Immunitaires, Centre de Recherche du Centre Hospitalier Universitaire de Québec-Université Laval, Quebec City, Quebec G1V 4G2, Canada;
- Département de Microbiologie-Infectiologie et d'Immunologie, Faculté de Médecine, Université Laval, Quebec City, Quebec G1V 0A6, Canada
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8
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Louis C, Souza-Fonseca-Guimaraes F, Yang Y, D'Silva D, Kratina T, Dagley L, Hediyeh-Zadeh S, Rautela J, Masters SL, Davis MJ, Babon JJ, Ciric B, Vivier E, Alexander WS, Huntington ND, Wicks IP. NK cell-derived GM-CSF potentiates inflammatory arthritis and is negatively regulated by CIS. J Exp Med 2020; 217:133838. [PMID: 32097462 PMCID: PMC7201918 DOI: 10.1084/jem.20191421] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 11/25/2019] [Accepted: 01/15/2020] [Indexed: 01/08/2023] Open
Abstract
Despite increasing recognition of the importance of GM-CSF in autoimmune disease, it remains unclear how GM-CSF is regulated at sites of tissue inflammation. Using GM-CSF fate reporter mice, we show that synovial NK cells produce GM-CSF in autoantibody-mediated inflammatory arthritis. Synovial NK cells promote a neutrophilic inflammatory cell infiltrate, and persistent arthritis, via GM-CSF production, as deletion of NK cells, or specific ablation of GM-CSF production in NK cells, abrogated disease. Synovial NK cell production of GM-CSF is IL-18–dependent. Furthermore, we show that cytokine-inducible SH2-containing protein (CIS) is crucial in limiting GM-CSF signaling not only during inflammatory arthritis but also in experimental allergic encephalomyelitis (EAE), a murine model of multiple sclerosis. Thus, a cellular cascade of synovial macrophages, NK cells, and neutrophils mediates persistent joint inflammation via production of IL-18 and GM-CSF. Endogenous CIS provides a key brake on signaling through the GM-CSF receptor. These findings shed new light on GM-CSF biology in sterile tissue inflammation and identify several potential therapeutic targets.
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Affiliation(s)
- Cynthia Louis
- Inflammation Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Medical Biology, University of Melbourne, Parkville, Australia
| | - Fernando Souza-Fonseca-Guimaraes
- Medical Biology, University of Melbourne, Parkville, Australia.,Molecular Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,University of Queensland Diamantina Institute, Translational Research Institute, Brisbane, Australia
| | - Yuyan Yang
- Inflammation Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Medical Biology, University of Melbourne, Parkville, Australia
| | - Damian D'Silva
- Inflammation Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Medical Biology, University of Melbourne, Parkville, Australia
| | - Tobias Kratina
- Medical Biology, University of Melbourne, Parkville, Australia.,Molecular Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia
| | - Laura Dagley
- Medical Biology, University of Melbourne, Parkville, Australia.,Systems Biology and Personalized Medicine Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia
| | - Soroor Hediyeh-Zadeh
- Medical Biology, University of Melbourne, Parkville, Australia.,Bioinformatics Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia
| | - Jai Rautela
- Medical Biology, University of Melbourne, Parkville, Australia.,Molecular Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Biomedicine Discovery Institute and the Department of Biochemistry and Molecular Biology, Monash University, Clayton, Australia
| | - Seth Lucian Masters
- Inflammation Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Medical Biology, University of Melbourne, Parkville, Australia
| | - Melissa J Davis
- Medical Biology, University of Melbourne, Parkville, Australia.,Bioinformatics Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia
| | - Jeffrey J Babon
- Medical Biology, University of Melbourne, Parkville, Australia.,Structural Biology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia
| | - Bogoljub Ciric
- Department of Neurology, Thomas Jefferson University. Philadelphia, PA
| | - Eric Vivier
- Innate Pharma Research Labs, Innate Pharma, Marseille, France.,Aix Marseille University, CNRS, INSERM, CIML, Marseille, France.,Service d'Immunologie, Marseille Immunopole, Hôpital de la Timone, Assistance Publique-Hôpitaux de Marseille, Marseille, France
| | - Warren S Alexander
- Medical Biology, University of Melbourne, Parkville, Australia.,Blood Cells and Blood Cancer Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia
| | - Nicholas D Huntington
- Medical Biology, University of Melbourne, Parkville, Australia.,Biomedicine Discovery Institute and the Department of Biochemistry and Molecular Biology, Monash University, Clayton, Australia
| | - Ian P Wicks
- Inflammation Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia.,Medical Biology, University of Melbourne, Parkville, Australia.,Rheumatology Unit, Royal Melbourne Hospital, Parkville, Australia
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9
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Jung JY, Kim JW, Suh CH, Kim HA. Roles of Interactions Between Toll-Like Receptors and Their Endogenous Ligands in the Pathogenesis of Systemic Juvenile Idiopathic Arthritis and Adult-Onset Still's Disease. Front Immunol 2020; 11:583513. [PMID: 33224145 PMCID: PMC7674197 DOI: 10.3389/fimmu.2020.583513] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 10/12/2020] [Indexed: 12/14/2022] Open
Abstract
Systemic juvenile idiopathic arthritis (JIA) and adult-onset Still’s disease (AOSD) are systemic inflammatory disorders that manifest as high-spiking fever, joint pain, evanescent skin rash, and organomegaly. Their pathogenesis is unclear, but inflammation is triggered by activation of the innate immune system with aberrant production of proinflammatory cytokines. Along with extrinsic factors, intrinsic pathways can trigger an unexpected immune response. Damage-associated molecular patterns (DAMPs) induce the activation of innate immune cells, leading to sterile inflammation in systemic JIA and AOSD. These endogenous proteins interact with Toll-like receptors (TLRs), which are pattern recognition receptors, and mediate immune signaling following stimulation by pathogen-associated molecular patterns and DAMPs. Several DAMPs, such as S100 proteins, play a role in the development or severity of systemic JIA and AOSD, in which their interactions with TLRs are altered. Also, the expression levels of genes encoding DAMPs contribute to the susceptibility to systemic JIA and AOSD. Herein, we review reports that TLR and DAMP signaling initiates and/or maintains the inflammatory response in systemic JIA and AOSD, and their correlations with the clinical characteristics of those diseases. In addition, we assess their utility as biomarkers or therapeutics for systemic JIA and AOSD.
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Affiliation(s)
- Ju-Yang Jung
- Department of Rheumatology, Ajou University of Medical School, Suwon, South Korea
| | - Ji-Won Kim
- Department of Rheumatology, Ajou University of Medical School, Suwon, South Korea
| | - Chang-Hee Suh
- Department of Rheumatology, Ajou University of Medical School, Suwon, South Korea
| | - Hyoun-Ah Kim
- Department of Rheumatology, Ajou University of Medical School, Suwon, South Korea
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10
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Arivazhagan L, Ruiz HH, Wilson R, Manigrasso M, Gugger PF, Fisher EA, Moore KJ, Ramasamy R, Schmidt AM. An Eclectic Cast of Cellular Actors Orchestrates Innate Immune Responses in the Mechanisms Driving Obesity and Metabolic Perturbation. Circ Res 2020; 126:1565-1589. [PMID: 32437306 PMCID: PMC7250004 DOI: 10.1161/circresaha.120.315900] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The escalating problem of obesity and its multiple metabolic and cardiovascular complications threatens the health and longevity of humans throughout the world. The cause of obesity and one of its chief complications, insulin resistance, involves the participation of multiple distinct organs and cell types. From the brain to the periphery, cell-intrinsic and intercellular networks converge to stimulate and propagate increases in body mass and adiposity, as well as disturbances of insulin sensitivity. This review focuses on the roles of the cadre of innate immune cells, both those that are resident in metabolic organs and those that are recruited into these organs in response to cues elicited by stressors such as overnutrition and reduced physical activity. Beyond the typical cast of innate immune characters invoked in the mechanisms of metabolic perturbation in these settings, such as neutrophils and monocytes/macrophages, these actors are joined by bone marrow-derived cells, such as eosinophils and mast cells and the intriguing innate lymphoid cells, which are present in the circulation and in metabolic organ depots. Upon high-fat feeding or reduced physical activity, phenotypic modulation of the cast of plastic innate immune cells ensues, leading to the production of mediators that affect inflammation, lipid handling, and metabolic signaling. Furthermore, their consequent interactions with adaptive immune cells, including myriad T-cell and B-cell subsets, compound these complexities. Notably, many of these innate immune cell-elicited signals in overnutrition may be modulated by weight loss, such as that induced by bariatric surgery. Recently, exciting insights into the biology and pathobiology of these cell type-specific niches are being uncovered by state-of-the-art techniques such as single-cell RNA-sequencing. This review considers the evolution of this field of research on innate immunity in obesity and metabolic perturbation, as well as future directions.
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Affiliation(s)
- Lakshmi Arivazhagan
- Diabetes Research Program, Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, NYU Grossman School of Medicine, New York, New York 10016
| | - Henry H. Ruiz
- Diabetes Research Program, Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, NYU Grossman School of Medicine, New York, New York 10016
| | - Robin Wilson
- Diabetes Research Program, Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, NYU Grossman School of Medicine, New York, New York 10016
| | - Michaele Manigrasso
- Diabetes Research Program, Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, NYU Grossman School of Medicine, New York, New York 10016
| | - Paul F. Gugger
- Diabetes Research Program, Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, NYU Grossman School of Medicine, New York, New York 10016
| | - Edward A. Fisher
- The Leon H. Charney Division of Cardiology, Department of Medicine, The Marc and Ruti Bell Program in Vascular Biology, NYU Langone Medical Center, New York 10016
- NYU Cardiovascular Research Center, NYU Grossman School of Medicine, New York, New York 10016
| | - Kathryn J. Moore
- The Leon H. Charney Division of Cardiology, Department of Medicine, The Marc and Ruti Bell Program in Vascular Biology, NYU Langone Medical Center, New York 10016
- NYU Cardiovascular Research Center, NYU Grossman School of Medicine, New York, New York 10016
| | - Ravichandran Ramasamy
- Diabetes Research Program, Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, NYU Grossman School of Medicine, New York, New York 10016
| | - Ann Marie Schmidt
- Diabetes Research Program, Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, NYU Grossman School of Medicine, New York, New York 10016
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Di Ceglie I, Kruisbergen NNL, van den Bosch MHJ, van Lent PLEM. Fc-gamma receptors and S100A8/A9 cause bone erosion during rheumatoid arthritis. Do they act as partners in crime? Rheumatology (Oxford) 2020; 58:1331-1343. [PMID: 31180451 DOI: 10.1093/rheumatology/kez218] [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: 12/30/2018] [Revised: 04/25/2019] [Indexed: 12/19/2022] Open
Abstract
Bone erosion is one of the central hallmarks of RA and is caused by excessive differentiation and activation of osteoclasts. Presence of autoantibodies in seropositive arthritis is associated with radiographic disease progression. ICs, formed by autoantibodies and their antigens, activate Fcγ-receptor signalling in immune cells, and as such stimulate inflammation-mediated bone erosion. Interestingly, ICs can also directly activate osteoclasts by binding to FcγRs on their surface. Next to autoantibodies, high levels of alarmins, among which is S100A8/A9, are typical for RA and they can further activate the immune system but also directly promote osteoclast function. Therefore, IC-activated FcγRs and S100A8/A9 might act as partners in crime to stimulate inflammation and osteoclasts differentiation and function, thereby stimulating bone erosion. This review discusses the separate roles of ICs, FcγRs and alarmins in bone erosion and sheds new light on the possible interplay between them, which could fuel bone erosion.
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Affiliation(s)
- Irene Di Ceglie
- Experimental Rheumatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Nik N L Kruisbergen
- Experimental Rheumatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | | | - Peter L E M van Lent
- Experimental Rheumatology, Radboud University Medical Center, Nijmegen, The Netherlands
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12
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S100 proteins in atherosclerosis. Clin Chim Acta 2020; 502:293-304. [DOI: 10.1016/j.cca.2019.11.019] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 11/11/2019] [Accepted: 11/14/2019] [Indexed: 02/07/2023]
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13
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S100A12 in Digestive Diseases and Health: A Scoping Review. Gastroenterol Res Pract 2020; 2020:2868373. [PMID: 32184815 PMCID: PMC7061133 DOI: 10.1155/2020/2868373] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 01/05/2020] [Accepted: 01/22/2020] [Indexed: 02/07/2023] Open
Abstract
Calgranulin proteins are an important class of molecules involved in innate immunity. These members of the S100 class of the EF-hand family of calcium-binding proteins have numerous cellular and antimicrobial functions. One protein in particular, S100A12 (also called EN-RAGE or calgranulin C), is highly abundant in neutrophils during acute inflammation and has been implicated in immune regulation. Structure-function analyses reveal that S100A12 has the capacity to bind calcium, zinc, and copper, processes that contribute to nutritional immunity against invading microbial pathogens. S100A12 is a ligand for the receptor for advanced glycation end products (RAGE), toll-like receptor 4 (TLR4), and CD36, which promote cellular and immunological pathways to alter inflammation. We conducted a scoping review of the existing literature to define what is known about the association of S100A12 with digestive disease and health. Results suggest that S100A12 is implicated in gastroenteritis, necrotizing enterocolitis, gastritis, gastric cancer, Crohn's disease, irritable bowel syndrome, inflammatory bowel disease, and digestive tract cancers. Together, these results reveal S100A12 is an important molecule broadly associated with the pathogenesis of digestive diseases.
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14
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Li C, Ma Y, Fei F, Zheng M, Li Z, Zhao Q, Du J, Liu K, Lu R, Zhang S. Critical role and its underlying molecular events of the plasminogen receptor, S100A10 in malignant tumor and non-tumor diseases. J Cancer 2020; 11:826-836. [PMID: 31949486 PMCID: PMC6959022 DOI: 10.7150/jca.36203] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 11/13/2019] [Indexed: 12/28/2022] Open
Abstract
S100A10 is a small molecular weight protein expressed in the cytoplasm of many cells and one of the members of the S100 protein family that binds calcium and forms the largest subgroup of EF-hand proteins. The regulatory processes of S100A10 are complicated. S100A10 participates in the regulation of a variety of tumor and non-tumor diseases through cascade reactions with multitudinous signaling molecules. In malignant tumors, such as acute promyelocytic leukemia (APL) and lung cancer, S100A10 is likely involved in their progression, including invasion and metastasis through the regulation of plasmin production and subsequent plasmin-dependent stimulation of other proteases, such as matrix metalloproteinase (MMP)-2 and -9. Both the plasmin and MMPs are capable of inducing degradation of the extracellular matrix (ECM) and basement membrane, which is a critical step for tumor progression. In non-tumor diseases, the distribution of S100A10 in the brain and its interaction with 5-hydroxytryptamine 1B (5-HT1B) receptor, an important mediator in the central nervous system that maintains a dynamic balance of the neurotransmitters, correlates with depression-like behavior. S100A10 also participates in inflammatory responses through the regulation of peripheral macrophage migration to the inflammatory sites, which depends on the generation of plasmin and other proteinases at the surface of macrophages. Considerable attention should be paid to understand the significant role of S100A10 in the modulation of malignant tumor and non-tumor diseases.
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Affiliation(s)
- Chunyuan Li
- Department of Pathology, Tianjin Union Medical Center, Tianjin, P.R. China
| | - Yi Ma
- Department of ophthalmology, Tianjin Union Medical Center, Tianjin, P.R. China
| | - Fei Fei
- Department of Pathology, Tianjin Union Medical Center, Tianjin, P.R. China
| | - Minying Zheng
- Department of Pathology, Tianjin Union Medical Center, Tianjin, P.R. China
| | - Zugui Li
- Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin, P.R. China
| | - Qi Zhao
- Tianjin Medical University, Tianjin, P.R. China
| | - Jiaxing Du
- Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin, P.R. China
| | - Kai Liu
- Tianjin Medical University, Tianjin, P.R. China
| | - Rui Lu
- Tianjin Medical University, Tianjin, P.R. China
| | - Shiwu Zhang
- Department of Pathology, Tianjin Union Medical Center, Tianjin, P.R. China
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15
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Cesaro A, Defrêne J, Lachhab A, Pagé N, Tardif MR, Al-Shami A, Oravecz T, Fortin PR, Daudelin JF, Labrecque N, Aoudjit F, Pelletier M, Tessier PA. Enhanced myelopoiesis and aggravated arthritis in S100a8-deficient mice. PLoS One 2019; 14:e0221528. [PMID: 31437241 PMCID: PMC6705798 DOI: 10.1371/journal.pone.0221528] [Citation(s) in RCA: 5] [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: 04/10/2019] [Accepted: 08/08/2019] [Indexed: 12/29/2022] Open
Abstract
Expressed strongly by myeloid cells, damage-associated molecular pattern (DAMP) proteins S100A8 and S100A9 are found in the serum of patients with infectious and autoimmune diseases. Compared to S100A9, the role of S100A8 is controversial. We investigated its biological activity in collagen-induced arthritis using the first known viable and fertile S100a8-deficient (S100a8-/-) mouse. Although comparable to the wild type (WT) in terms of lymphocyte distribution in blood and in the primary and secondary lymphoid organs, S100a8-/- mice had increased numbers of neutrophils, monocytes and dendritic cells in the blood and bone marrow, and these all expressed myeloid markers such as CD11b, Ly6G and CD86 more strongly. Granulocyte-macrophage common precursors were increased in S100a8-/- bone marrow and yielded greater numbers of macrophages and dendritic cells in culture. The animals also developed more severe arthritic disease leading to aggravated osteoclast activity and bone destruction. These findings were correlated with increased inflammatory cell infiltration and cytokine secretion in the paws. This study suggests that S100A8 is an anti-inflammatory DAMP that regulates myeloid cell differentiation, thereby mitigating the development of experimental arthritis.
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Affiliation(s)
- Annabelle Cesaro
- Axe de recherche sur les maladies infectieuses et immunitaires, Centre de recherche du CHU de Québec-Université Laval, Quebec city, Quebec, Canada
| | - Joan Defrêne
- Axe de recherche sur les maladies infectieuses et immunitaires, Centre de recherche du CHU de Québec-Université Laval, Quebec city, Quebec, Canada
| | - Asmaa Lachhab
- Axe de recherche sur les maladies infectieuses et immunitaires, Centre de recherche du CHU de Québec-Université Laval, Quebec city, Quebec, Canada
| | - Nathalie Pagé
- Axe de recherche sur les maladies infectieuses et immunitaires, Centre de recherche du CHU de Québec-Université Laval, Quebec city, Quebec, Canada
| | - Mélanie R. Tardif
- Axe de recherche sur les maladies infectieuses et immunitaires, Centre de recherche du CHU de Québec-Université Laval, Quebec city, Quebec, Canada
| | - Amin Al-Shami
- Lexicon Pharmaceuticals, Inc., The Woodlands, Texas, United States of America
| | - Tamas Oravecz
- Lexicon Pharmaceuticals, Inc., The Woodlands, Texas, United States of America
| | - Paul R. Fortin
- Axe de recherche sur les maladies infectieuses et immunitaires, Centre de recherche du CHU de Québec-Université Laval, Quebec city, Quebec, Canada
- Département de médecine, Faculté de Médecine, Université Laval, Quebec City, Quebec, Canada
| | | | - Nathalie Labrecque
- Maisonneuve-Rosemont Hospital Research Centre, Montreal, Quebec, Canada
- Department of Medicine and Department of Microbiology, Infectiology and Immunology, Université de Montréal, Montréal, Canada
| | - Fawzi Aoudjit
- Axe de recherche sur les maladies infectieuses et immunitaires, Centre de recherche du CHU de Québec-Université Laval, Quebec city, Quebec, Canada
- Département de microbiologie-infectiologie et d’immunologie, Faculté de Médecine, Université Laval, Quebec City, Quebec, Canada
| | - Martin Pelletier
- Axe de recherche sur les maladies infectieuses et immunitaires, Centre de recherche du CHU de Québec-Université Laval, Quebec city, Quebec, Canada
- Département de microbiologie-infectiologie et d’immunologie, Faculté de Médecine, Université Laval, Quebec City, Quebec, Canada
| | - Philippe A. Tessier
- Axe de recherche sur les maladies infectieuses et immunitaires, Centre de recherche du CHU de Québec-Université Laval, Quebec city, Quebec, Canada
- Département de microbiologie-infectiologie et d’immunologie, Faculté de Médecine, Université Laval, Quebec City, Quebec, Canada
- * E-mail:
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16
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Di Ceglie I, Blom AB, Davar R, Logie C, Martens JHA, Habibi E, Böttcher LM, Roth J, Vogl T, Goodyear CS, van der Kraan PM, van Lent PL, van den Bosch MH. The alarmin S100A9 hampers osteoclast differentiation from human circulating precursors by reducing the expression of RANK. FASEB J 2019; 33:10104-10115. [PMID: 31199668 DOI: 10.1096/fj.201802691rr] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
The alarmin S100A8/A9 is implicated in sterile inflammation-induced bone resorption and has been shown to increase the bone-resorptive capacity of mature osteoclasts. Here, we investigated the effects of S100A9 on osteoclast differentiation from human CD14+ circulating precursors. Hereto, human CD14+ monocytes were isolated and differentiated toward osteoclasts with M-CSF and receptor activator of NF-κB (RANK) ligand (RANKL) in the presence or absence of S100A9. Tartrate-resistant acid phosphatase staining showed that exposure to S100A9 during monocyte-to-osteoclast differentiation strongly decreased the numbers of multinucleated osteoclasts. This was underlined by a decreased resorption of a hydroxyapatite-like coating. The thus differentiated cells showed a high mRNA and protein production of proinflammatory factors after 16 h of exposure. In contrast, at d 4, the cells showed a decreased production of the osteoclast-promoting protein TNF-α. Interestingly, S100A9 exposure during the first 16 h of culture only was sufficient to reduce osteoclastogenesis. Using fluorescently labeled RANKL, we showed that, within this time frame, S100A9 inhibited the M-CSF-mediated induction of RANK. Chromatin immunoprecipitation showed that this was associated with changes in various histone marks at the epigenetic level. This S100A9-induced reduction in RANK was in part recovered by blocking TNF-α but not IL-1. Together, our data show that S100A9 impedes monocyte-to-osteoclast differentiation, probably via a reduction in RANK expression.-Di Ceglie, I., Blom, A. B., Davar, R., Logie, C., Martens, J. H. A., Habibi, E., Böttcher, L.-M., Roth, J., Vogl, T., Goodyear, C. S., van der Kraan, P. M., van Lent, P. L., van den Bosch, M. H. The alarmin S100A9 hampers osteoclast differentiation from human circulating precursors by reducing the expression of RANK.
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Affiliation(s)
- Irene Di Ceglie
- Experimental Rheumatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Arjen B Blom
- Experimental Rheumatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Robab Davar
- Department of Molecular Biology, Faculty of Science, Radboud University, Nijmegen, The Netherlands
| | - Colin Logie
- Department of Molecular Biology, Faculty of Science, Radboud University, Nijmegen, The Netherlands
| | - Joost H A Martens
- Department of Molecular Biology, Faculty of Science, Radboud University, Nijmegen, The Netherlands
| | - Ehsan Habibi
- Department of Molecular Biology, Faculty of Science, Radboud University, Nijmegen, The Netherlands
| | - Lisa-Marie Böttcher
- Experimental Rheumatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Johannes Roth
- Institute of Immunology, University of Münster, Münster, Germany
| | - Thomas Vogl
- Institute of Immunology, University of Münster, Münster, Germany
| | - Carl S Goodyear
- Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom
| | - Peter M van der Kraan
- Experimental Rheumatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Peter L van Lent
- Experimental Rheumatology, Radboud University Medical Center, Nijmegen, The Netherlands
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Holzinger D, Tenbrock K, Roth J. Alarmins of the S100-Family in Juvenile Autoimmune and Auto-Inflammatory Diseases. Front Immunol 2019; 10:182. [PMID: 30828327 PMCID: PMC6384255 DOI: 10.3389/fimmu.2019.00182] [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: 10/13/2018] [Accepted: 01/21/2019] [Indexed: 12/17/2022] Open
Abstract
Autoimmune and auto-inflammatory diseases in children are causing chronic inflammation, organ damage, and pain. Although several options for treatment are nowadays available a significant number of patients does not respond sufficiently to current therapies. In these diseases inflammatory processes are triggered by numerous exogenous and endogenous factors. There is now increasing evidence that especially a novel family of pro-inflammatory molecules, named alarmins, play a significant role in inflammatory processes underlying these diseases. Alarmins are endogenous proteins released during stress reactions that confer inflammatory signaling via Pattern Recognition Receptors (PRRs), like the Toll-like receptor 4 (TLR4). The most abundant alarmins in juvenile rheumatic diseases belong to the family of pro-inflammatory calcium-binding S100-proteins. In this review we will give a general introduction in S100-biology. We will demonstrate the functional relevance of these proteins in animal models of autoimmune and auto-inflammatory diseases. We will show the expression patterns of S100-alarmins and correlation to disease activity in different forms of juvenile idiopathic arthritis, auto-inflammatory diseases, and systemic autoimmune disorders. Finally, we will discuss the clinical use of S100-alarmins as biomarkers for diagnosis and monitoring of rheumatic diseases in children and will point out potential future therapeutic approaches targeting inflammatory effects mediated by S100-alarmins.
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Affiliation(s)
- Dirk Holzinger
- Department of Pediatric Hematology-Oncology, University of Duisburg-Essen, Essen, Germany
| | - Klaus Tenbrock
- Department of Pediatrics, Medical Faculty, RWTH Aachen, Aachen, Germany
| | - Johannes Roth
- Institute of Immunology, University of Muenster, Münster, Germany
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Fukunaga S, Kuwaki K, Mitsuyama K, Takedatsu H, Yoshioka S, Yamasaki H, Yamauchi R, Mori A, Kakuma T, Tsuruta O, Torimura T. Detection of calprotectin in inflammatory bowel disease: Fecal and serum levels and immunohistochemical localization. Int J Mol Med 2017; 41:107-118. [PMID: 29115397 PMCID: PMC5746327 DOI: 10.3892/ijmm.2017.3244] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Accepted: 10/19/2017] [Indexed: 12/21/2022] Open
Abstract
The aim of the present study was to quantify calprotectin levels using an enzyme-linked immunosorbent assay (ELISA) and a point-of-care test (POCT) in patients with inflammatory bowel disease. Overall, 113 patients with ulcerative colitis (UC; 51 men and 62 women) and 42 patients with Crohn's disease (CD; 29 men and 13 women), who were scheduled to undergo a colonoscopy, were prospectively enrolled and scored endoscopically and clinically. An additional 96 healthy, age-matched subjects served as the normal controls. Feces and blood samples from the patients with UC and CD, and the normal controls were analyzed. These patients had received adequate medical treatment. The tissue distribution of calprotectin was investigated using immunohistochemistry. The fecal calprotectin levels, as measured using an ELISA, were correlated with the endoscopic and clinical disease activities and laboratory parameters, including serum levels of hemoglobin (Hb), albumin and C-reactive protein, and erythrocyte sedimentation rate, particularly among the patients with UC. The fecal Hb level was close to that of the fecal calprotectin level (r=0.57; P<0.0001). The fecal calprotectin level measured using an ELISA was well-correlated with the fecal calprotectin level measured using the POCT (r=0.81; P<0.0001), but was not correlated with the serum calprotectin level (r=0.1013; P=0.47). An immunohistochemical investigation revealed that patients with both UC and CD had higher neutrophil and monocyte/macrophage calprotectin-positive cell expression levels, compared with those in the normal controls. Fecal calprotectin was considered a reliable marker for disease activity, and the assessment of fecal calprotectin via POCT showed potential as a rapid and simple measurement in clinical settings.
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Affiliation(s)
- Shuhei Fukunaga
- Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, Kurume, Fukuoka 830-0011, Japan
| | - Kotaro Kuwaki
- Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, Kurume, Fukuoka 830-0011, Japan
| | - Keiichi Mitsuyama
- Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, Kurume, Fukuoka 830-0011, Japan
| | - Hidetoshi Takedatsu
- Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, Kurume, Fukuoka 830-0011, Japan
| | - Shinichiro Yoshioka
- Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, Kurume, Fukuoka 830-0011, Japan
| | - Hiroshi Yamasaki
- Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, Kurume, Fukuoka 830-0011, Japan
| | - Ryosuke Yamauchi
- Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, Kurume, Fukuoka 830-0011, Japan
| | - Atsushi Mori
- Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, Kurume, Fukuoka 830-0011, Japan
| | - Tatsuyuki Kakuma
- Department of Biostatistics Center, Kurume University School of Medicine, Kurume, Fukuoka 830-0011, Japan
| | - Osamu Tsuruta
- Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, Kurume, Fukuoka 830-0011, Japan
| | - Takuji Torimura
- Division of Gastroenterology, Department of Medicine, Kurume University School of Medicine, Kurume, Fukuoka 830-0011, Japan
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20
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Pepper RJ, Draibe JB, Caplin B, Fervenza FC, Hoffman GS, Kallenberg CGM, Langford CA, Monach PA, Seo P, Spiera R, William St Clair E, Tchao NK, Stone JH, Specks U, Merkel PA, Salama AD. Association of Serum Calprotectin (S100A8/A9) Level With Disease Relapse in Proteinase 3-Antineutrophil Cytoplasmic Antibody-Associated Vasculitis. Arthritis Rheumatol 2017; 69:185-193. [PMID: 27428710 DOI: 10.1002/art.39814] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Accepted: 07/07/2016] [Indexed: 02/01/2023]
Abstract
OBJECTIVE S100A8/A9 (calprotectin) has shown promise as a biomarker for predicting relapse in antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV). This study was undertaken to investigate serum S100A8/A9 level as a biomarker for predicting future relapse in a large cohort of patients with severe AAV. METHODS Serum levels of S100A8/A9 were measured at baseline and months 1, 2, and 6 following treatment initiation in 144 patients in the Rituximab in ANCA-Associated Vasculitis trial (cyclophosphamide/azathioprine versus rituximab [RTX] for induction of remission) in whom complete remission was attained. RESULTS Patients were divided into 4 groups: proteinase 3 (PR3)-ANCA with relapse (n = 37), PR3-ANCA without relapse (n = 56), myeloperoxidase (MPO)-ANCA with relapse (n = 6), and MPO-ANCA without relapse (n = 45). Serum S100A8/A9 level decreased in all groups during the first 6 months of treatment. The percentage reduction from baseline to month 2 was significantly different between patients who experienced a relapse and those who did not in the PR3-ANCA group (P = 0.046). A significantly higher risk of relapse was associated with an increase in S100A8/A9 level between baseline and month 2 (P = 0.0043) and baseline and month 6 (P = 0.0029). Subgroup analysis demonstrated that patients treated with RTX who had increased levels of S100A8/A9 were at greatest risk of future relapse (P = 0.028). CONCLUSION An increase in serum S100A8/A9 level by month 2 or 6 compared to baseline identifies a subgroup of PR3-ANCA patients treated with RTX who are at higher risk of relapse by 18 months. Since RTX is increasingly used for remission induction in PR3-ANCA-positive patients experiencing a relapse, S100A8/A9 level may assist in identifying those patients requiring more intensive or prolonged treatment.
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Affiliation(s)
- Ruth J Pepper
- University College London Centre for Nephrology, Royal Free Hospital, London, UK
| | - Juliana B Draibe
- University College London Centre for Nephrology, Royal Free Hospital, London, UK
| | - Ben Caplin
- University College London Centre for Nephrology, Royal Free Hospital, London, UK
| | | | | | | | | | | | - Philip Seo
- Johns Hopkins University, Baltimore, Maryland
| | | | | | | | | | | | | | - Alan D Salama
- University College London Centre for Nephrology, Royal Free Hospital, London, UK
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22
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Miller RE, Belmadani A, Ishihara S, Tran PB, Ren D, Miller RJ, Malfait AM. Damage-associated molecular patterns generated in osteoarthritis directly excite murine nociceptive neurons through Toll-like receptor 4. Arthritis Rheumatol 2016; 67:2933-43. [PMID: 26245312 DOI: 10.1002/art.39291] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2015] [Accepted: 07/16/2015] [Indexed: 12/24/2022]
Abstract
OBJECTIVE To determine whether selected damage-associated molecular patterns (DAMPs) present in the osteoarthritic (OA) joints of mice excite nociceptors through Toll-like receptor 4 (TLR-4). METHODS The ability of S100A8 and α2 -macroglobulin to excite nociceptors was determined by measuring the release of monocyte chemoattractant protein 1 (MCP-1) by cultured dorsal root ganglion (DRG) cells as well as by measuring the intracellular calcium concentration ([Ca(2+) ]i ) in cultured DRG neurons from naive mice or from mice that had undergone surgical destabilization of the medial meniscus (DMM) 8 weeks previously. The role of TLR-4 was assessed using TLR-4(-/-) cells or a TLR-4 inhibitor. The [Ca(2+) ]i in neurons within ex vivo intact DRGs was measured in samples from Pirt-GCaMP3 mice. Neuronal expression of the Tlr4 gene was determined by in situ hybridization. DMM surgery was performed in wild-type and TLR-4(-/-) mice; mechanical allodynia was monitored, and joint damage was assessed histologically after 16 weeks. RESULTS DRG neurons from both naive and DMM mice expressed Tlr4. Both S100A8 and α2 -macroglobulin stimulated release of the proalgesic chemokine MCP-1 in DRG cultures, and the neurons rapidly responded to S100A8 and α2 -macroglobulin with increased [Ca(2+) ]i . Blocking TLR-4 inhibited these effects. Neurons within intact DRGs responded to the TLR-4 agonist lipopolysaccharide. In both of the calcium-imaging assays, it was primarily the nociceptor population of neurons that responded to TLR-4 ligands. TLR-4(-/-) mice were not protected from mechanical allodynia or from joint damage associated with DMM. CONCLUSION Our experiments suggest a role of TLR-4 signaling in the excitation of nociceptors by selected DAMPs. Further research is needed to delineate the importance of this pathway in relation to OA pain.
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Piccinini AM, Williams L, McCann FE, Midwood KS. Investigating the Role of Toll-Like Receptors in Models of Arthritis. Methods Mol Biol 2016; 1390:351-81. [PMID: 26803640 DOI: 10.1007/978-1-4939-3335-8_22] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Rheumatoid arthritis (RA) is a chronic autoimmune disease characterized by persistent synovial inflammation leading to tissue destruction and progressive loss of joint function. Here we describe two methods that can be used to assess the contribution of toll-like receptors (TLRs), and their potential ligands, to RA pathogenesis. We focus on the antigen-induced model of murine arthritis and human synovial tissue explant models. Both enable detection of TLR, and TLR ligand, expression, as well as investigation of the effect of inhibition of these molecules. Each offers a unique insight into disease; with murine models allowing kinetic analysis in live animals and explant models allowing examination of inflamed human tissue, which together can help us to dissect the role of TLRs in the onset and progression of RA.
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Affiliation(s)
- Anna M Piccinini
- Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Roosevelt Drive, Oxford, OX3 7FY, UK
| | - Lynn Williams
- Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Roosevelt Drive, Oxford, OX3 7FY, UK
| | - Fiona E McCann
- Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Roosevelt Drive, Oxford, OX3 7FY, UK
| | - Kim S Midwood
- Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Roosevelt Drive, Oxford, OX3 7FY, UK.
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van den Bosch MH, Blom AB, Schelbergen RFP, Vogl T, Roth JP, Slöetjes AW, van den Berg WB, van der Kraan PM, van Lent PLEM. Induction of Canonical Wnt Signaling by the Alarmins S100A8/A9 in Murine Knee Joints: Implications for Osteoarthritis. Arthritis Rheumatol 2015; 68:152-63. [DOI: 10.1002/art.39420] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Accepted: 08/27/2015] [Indexed: 01/27/2023]
Affiliation(s)
| | - Arjen B. Blom
- Radboud University Medical Center; Nijmegen The Netherlands
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Zackular JP, Chazin WJ, Skaar EP. Nutritional Immunity: S100 Proteins at the Host-Pathogen Interface. J Biol Chem 2015; 290:18991-8. [PMID: 26055713 DOI: 10.1074/jbc.r115.645085] [Citation(s) in RCA: 170] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The S100 family of EF-hand calcium (Ca(2+))-binding proteins is essential for a wide range of cellular functions. During infection, certain S100 proteins act as damage-associated molecular patterns (DAMPs) and interact with pattern recognition receptors to modulate inflammatory responses. In addition, these inflammatory S100 proteins have potent antimicrobial properties and are essential components of the immune response to invading pathogens. In this review, we focus on S100 proteins that exhibit antimicrobial properties through the process of metal limitation, termed nutritional immunity, and discuss several recent advances in our understanding of S100 protein-mediated metal sequestration at the site of infection.
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Affiliation(s)
- Joseph P Zackular
- From the Department of Pathology, Microbiology, and Immunology, Vanderbilt University School of Medicine, Nashville, Tennessee 37232 and
| | - Walter J Chazin
- the Departments of Biochemistry and Chemistry, and Center for Structural Biology, Vanderbilt University, Nashville, Tennessee 37232
| | - Eric P Skaar
- From the Department of Pathology, Microbiology, and Immunology, Vanderbilt University School of Medicine, Nashville, Tennessee 37232 and
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26
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Sido JM, Yang X, Nagarkatti PS, Nagarkatti M. Δ9-Tetrahydrocannabinol-mediated epigenetic modifications elicit myeloid-derived suppressor cell activation via STAT3/S100A8. J Leukoc Biol 2015; 97:677-88. [PMID: 25713087 PMCID: PMC4370051 DOI: 10.1189/jlb.1a1014-479r] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Revised: 01/08/2015] [Accepted: 01/12/2015] [Indexed: 01/12/2023] Open
Abstract
MDSCs are potent immunosuppressive cells that are induced during inflammatory responses, as well as by cancers, to evade the anti-tumor immunity. We recently demonstrated that marijuana cannabinoids are potent inducers of MDSCs. In the current study, we investigated the epigenetic mechanisms through which THC, an exogenous cannabinoid, induces MDSCs and compared such MDSCs with the naïve MDSCs found in BM of BL6 (WT) mice. Administration of THC into WT mice caused increased methylation at the promoter region of DNMT3a and DNMT3b in THC-induced MDSCs, which correlated with reduced expression of DNMT3a and DNMT3b. Furthermore, promoter region methylation was decreased at Arg1 and STAT3 in THC-induced MDSCs, and consequently, such MDSCs expressed higher levels of Arg1 and STAT3. In addition, THC-induced MDSCs secreted elevated levels of S100A8, a calcium-binding protein associated with accumulation of MDSCs in cancer models. Neutralization of S100A8 by use of anti-S100A8 (8H150) in vivo reduced the ability of THC to trigger MDSCs. Interestingly, the elevated S100A8 expression also promoted the suppressive function of MDSCs. Together, the current study demonstrates that THC mediates epigenetic changes to promote MDSC differentiation and function and that S100A8 plays a critical role in this process.
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Affiliation(s)
- Jessica Margaret Sido
- *Department of Pathology, Microbiology, and Immunology, University of South Carolina School of Medicine, Columbia, South Carolina, USA; and WJB Dorn Veterans Affairs Medical Center, Columbia, South Carolina, USA
| | - Xiaoming Yang
- *Department of Pathology, Microbiology, and Immunology, University of South Carolina School of Medicine, Columbia, South Carolina, USA; and WJB Dorn Veterans Affairs Medical Center, Columbia, South Carolina, USA
| | - Prakash S Nagarkatti
- *Department of Pathology, Microbiology, and Immunology, University of South Carolina School of Medicine, Columbia, South Carolina, USA; and WJB Dorn Veterans Affairs Medical Center, Columbia, South Carolina, USA
| | - Mitzi Nagarkatti
- *Department of Pathology, Microbiology, and Immunology, University of South Carolina School of Medicine, Columbia, South Carolina, USA; and WJB Dorn Veterans Affairs Medical Center, Columbia, South Carolina, USA
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Pepper RJ, Wang HH, Rajakaruna GK, Papakrivopoulou E, Vogl T, Pusey CD, Cook HT, Salama AD. S100A8/A9 (calprotectin) is critical for development of glomerulonephritis and promotes inflammatory leukocyte-renal cell interactions. THE AMERICAN JOURNAL OF PATHOLOGY 2015; 185:1264-74. [PMID: 25759267 DOI: 10.1016/j.ajpath.2015.01.015] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Revised: 01/15/2015] [Accepted: 01/29/2015] [Indexed: 11/24/2022]
Abstract
Glomerulonephritis is a common cause of end-stage renal disease. Infiltrating leukocytes interacting with renal cells play a critical role during the initiation and progression of glomerulonephritis, but the exact mechanisms are not clearly defined. By using the murine model of nephrotoxic nephritis, we investigated the role of S100A8/A9 [myeloid-related protein (MRP) 8/14, calprotectin] in promoting glomerulonephritis. In nephrotoxic nephritis, wild-type (WT) mice with glomerulonephritis have elevated serum levels of S100A8/A9, whereas mice deficient in MRP14 (S100a9(-/-)), and hence S100A8/A9, are significantly protected from disease. By using bone marrow transplants, we showed that MRP14 deficiency is required in both the hemopoietic and intrinsic cells for the protective effect. In vitro, both the WT bone marrow-derived macrophages and renal mesangial cells stimulated with S100A8/A9 secrete IL-6, CXCL1, and tumor necrosis factor α; however, Mrp14(-/-) cells exhibit significantly blunted proinflammatory responses. The interaction of WT bone marrow-derived macrophages with renal microvascular endothelial cells results in increased levels of monocyte chemotactic protein 1, IL-8, and IL-6 cytokines, which is attenuated in Mrp14(-/-) bone marrow-derived macrophages. Data shows that S100A8/A9 plays a critical role during glomerulonephritis, exerting and amplifying autocrine and paracrine proinflammatory effects on bone marrow-derived macrophages, renal endothelial cells, and mesangial cells. Therefore, complete S100A8/A9 blockade may be a new therapeutic target in glomerulonephritis.
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Affiliation(s)
- Ruth J Pepper
- UCL Centre for Nephrology, Royal Free Hospital, London, United Kingdom
| | - Hsu-Han Wang
- UCL Centre for Nephrology, Royal Free Hospital, London, United Kingdom
| | | | | | - Thomas Vogl
- Institute of Immunology, University of Muenster, Muenster, Germany
| | - Charles D Pusey
- Department of Medicine, Centre for Complement and Inflammation, Imperial College London, London, United Kingdom
| | - H Terence Cook
- Department of Medicine, Centre for Complement and Inflammation, Imperial College London, London, United Kingdom
| | - Alan D Salama
- UCL Centre for Nephrology, Royal Free Hospital, London, United Kingdom.
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Chen B, Miller AL, Rebelatto M, Brewah Y, Rowe DC, Clarke L, Czapiga M, Rosenthal K, Imamichi T, Chen Y, Chang CS, Chowdhury PS, Naiman B, Wang Y, Yang D, Humbles AA, Herbst R, Sims GP. S100A9 induced inflammatory responses are mediated by distinct damage associated molecular patterns (DAMP) receptors in vitro and in vivo. PLoS One 2015; 10:e0115828. [PMID: 25706559 PMCID: PMC4338059 DOI: 10.1371/journal.pone.0115828] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2014] [Accepted: 12/02/2014] [Indexed: 01/12/2023] Open
Abstract
Release of endogenous damage associated molecular patterns (DAMPs), including members of the S100 family, are associated with infection, cellular stress, tissue damage and cancer. The extracellular functions of this family of calcium binding proteins, particularly S100A8, S100A9 and S100A12, are being delineated. They appear to mediate their functions via receptor for advanced glycation endproducts (RAGE) or TLR4, but there remains considerable uncertainty over the relative physiological roles of these DAMPs and their pattern recognition receptors. In this study, we surveyed the capacity of S100 proteins to induce proinflammatory cytokines and cell migration, and the contribution RAGE and TLR4 to mediate these responses in vitro. Using adenoviral delivery of murine S100A9, we also examined the potential for S100A9 homodimers to trigger lung inflammation in vivo. S100A8, S100A9 and S100A12, but not the S100A8/A9 heterodimer, induced modest levels of TLR4-mediated cytokine production from human PBMC. In contrast, for most S100s including S100A9, RAGE blockade inhibited S100-mediated cell migration of THP1 cells and major leukocyte populations, whereas TLR4-blockade had no effect. Intranasal administration of murine S100A9 adenovirus induced a specific, time-dependent predominately macrophage infiltration that coincided with elevated S100A9 levels and proinflammatory cytokines in the BAL fluid. Inflammatory cytokines were markedly ablated in the TLR4-defective mice, but unexpectedly the loss of TLR4 signaling or RAGE-deficiency did not appreciably impact the S100A9-mediated lung pathology or the inflammatory cell infiltrate in the alveolar space. These data demonstrate that physiological levels of S100A9 homodimers can trigger an inflammatory response in vivo, and despite the capacity of RAGE and TLR4 blockade to inhibit responses in vitro, the response is predominately independent of both these receptors.
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Affiliation(s)
- Bo Chen
- MedImmune LLC, One MedImmune Way, Gaithersburg, Maryland 20878, United States of America
| | - Allison L. Miller
- MedImmune LLC, One MedImmune Way, Gaithersburg, Maryland 20878, United States of America
| | - Marlon Rebelatto
- MedImmune LLC, One MedImmune Way, Gaithersburg, Maryland 20878, United States of America
| | - Yambasu Brewah
- MedImmune LLC, One MedImmune Way, Gaithersburg, Maryland 20878, United States of America
| | - Daniel C. Rowe
- MedImmune LLC, One MedImmune Way, Gaithersburg, Maryland 20878, United States of America
| | - Lori Clarke
- MedImmune LLC, One MedImmune Way, Gaithersburg, Maryland 20878, United States of America
| | - Meggan Czapiga
- MedImmune LLC, One MedImmune Way, Gaithersburg, Maryland 20878, United States of America
| | - Kim Rosenthal
- MedImmune LLC, One MedImmune Way, Gaithersburg, Maryland 20878, United States of America
| | - Tomozumi Imamichi
- MedImmune LLC, One MedImmune Way, Gaithersburg, Maryland 20878, United States of America
- Laboratory of Human Retrovirology, Applied and Developmental Directorate, Building 550 Room 126, Leidos Biomedical Research Inc, Frederick National Laboratory for Cancer Research, Frederick, Maryland 21702, United States of America
| | - Yan Chen
- MedImmune LLC, One MedImmune Way, Gaithersburg, Maryland 20878, United States of America
| | - Chew-Shun Chang
- MedImmune LLC, One MedImmune Way, Gaithersburg, Maryland 20878, United States of America
| | - Partha S. Chowdhury
- MedImmune LLC, One MedImmune Way, Gaithersburg, Maryland 20878, United States of America
| | - Brian Naiman
- MedImmune LLC, One MedImmune Way, Gaithersburg, Maryland 20878, United States of America
| | - Yue Wang
- MedImmune LLC, One MedImmune Way, Gaithersburg, Maryland 20878, United States of America
| | - De Yang
- Laboratory of Molecular Immunoregulation, National Cancer Institute, Frederick National Laboratory for Cancer Research, Frederick, Maryland 21702, United States of America
| | - Alison A. Humbles
- MedImmune LLC, One MedImmune Way, Gaithersburg, Maryland 20878, United States of America
| | - Ronald Herbst
- MedImmune LLC, One MedImmune Way, Gaithersburg, Maryland 20878, United States of America
| | - Gary P. Sims
- MedImmune LLC, One MedImmune Way, Gaithersburg, Maryland 20878, United States of America
- * E-mail:
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Abstract
The S100 protein family consists of 24 members functionally distributed into three main subgroups: those that only exert intracellular regulatory effects, those with intracellular and extracellular functions and those which mainly exert extracellular regulatory effects. S100 proteins are only expressed in vertebrates and show cell-specific expression patterns. In some instances, a particular S100 protein can be induced in pathological circumstances in a cell type that does not express it in normal physiological conditions. Within cells, S100 proteins are involved in aspects of regulation of proliferation, differentiation, apoptosis, Ca2+ homeostasis, energy metabolism, inflammation and migration/invasion through interactions with a variety of target proteins including enzymes, cytoskeletal subunits, receptors, transcription factors and nucleic acids. Some S100 proteins are secreted or released and regulate cell functions in an autocrine and paracrine manner via activation of surface receptors (e.g. the receptor for advanced glycation end-products and toll-like receptor 4), G-protein-coupled receptors, scavenger receptors, or heparan sulfate proteoglycans and N-glycans. Extracellular S100A4 and S100B also interact with epidermal growth factor and basic fibroblast growth factor, respectively, thereby enhancing the activity of the corresponding receptors. Thus, extracellular S100 proteins exert regulatory activities on monocytes/macrophages/microglia, neutrophils, lymphocytes, mast cells, articular chondrocytes, endothelial and vascular smooth muscle cells, neurons, astrocytes, Schwann cells, epithelial cells, myoblasts and cardiomyocytes, thereby participating in innate and adaptive immune responses, cell migration and chemotaxis, tissue development and repair, and leukocyte and tumor cell invasion.
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Affiliation(s)
- R Donato
- Department of Experimental Medicine and Biochemical Sciences, University of Perugia, Via del Giochetto, 06122 Perugia, Italy.
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Pepper RJ, Hamour S, Chavele KM, Todd SK, Rasmussen N, Flint S, Lyons PA, Smith KGC, Pusey CD, Cook HT, Salama AD. Leukocyte and serum S100A8/S100A9 expression reflects disease activity in ANCA-associated vasculitis and glomerulonephritis. Kidney Int 2013; 83:1150-8. [PMID: 23423260 PMCID: PMC3675710 DOI: 10.1038/ki.2013.2] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2012] [Revised: 11/12/2012] [Accepted: 11/16/2012] [Indexed: 12/12/2022]
Abstract
Antineutrophil cytoplasm antibody (ANCA)-associated vasculitis (AAV) commonly results in glomerulonephritis, in which neutrophils and monocytes have important roles. The heterodimer calprotectin (S100A8/S100A9, mrp8/14) is a Toll-like receptor-4 ligand found in neutrophils and monocytes and is elevated in inflammatory conditions. By immunohistochemistry of renal biopsies, patients with focal or crescentic glomerular lesions were found to have the highest expression of calprotectin and those with sclerotic the least. Serum levels of calprotectin as measured by ELISA were elevated in patients with active AAV and the levels decreased but did not normalize during remission, suggesting subclinical inflammation. Calprotectin levels in patients with limited systemic disease increased following treatment withdrawal and were significantly elevated in patients who relapsed compared with those who did not. As assessed by flow cytometry, patients with AAV had higher monocyte and neutrophil cell surface calprotectin expression than healthy controls, but this was not associated with augmented mRNA expression in CD14(+) monocytes or CD16(+) neutrophils. Thus, serum calprotectin is a potential disease biomarker in patients with AAV, and may have a role in disease pathogenesis.
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Affiliation(s)
- Ruth J Pepper
- UCL Centre for Nephrology, Royal Free Hospital, London, UK.
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Chung YM, Goyette J, Tedla N, Hsu K, Geczy CL. S100A12 suppresses pro-inflammatory, but not pro-thrombotic functions of serum amyloid A. PLoS One 2013; 8:e62372. [PMID: 23638054 PMCID: PMC3634854 DOI: 10.1371/journal.pone.0062372] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2013] [Accepted: 03/20/2013] [Indexed: 12/15/2022] Open
Abstract
S100A12 is elevated in the circulation in patients with chronic inflammatory diseases and recent studies indicate pleiotropic functions. Serum amyloid A induces monocyte cytokines and tissue factor. S100A12 did not stimulate IL-6, IL-8, IL-1β or TNF-α production by human peripheral blood mononuclear cells but low amounts consistently reduced cytokine mRNA and protein levels induced by serum amyloid A, by ∼49% and ∼46%, respectively. However, S100A12 did not affect serum amyloid A-induced monocyte tissue factor. In marked contrast, LPS-induced cytokines or tissue factor were not suppressed by S100A12. S100A12 did not alter cytokine mRNA stability or the cytokine secretory pathway. S100A12 and serum amyloid A did not appear to form complexes and although they may have common receptors, suppression was unlikely via receptor competition. Serum amyloid A induces cytokines via activation of NF-κB and the MAPK pathways. S100A12 reduced serum amyloid A-, but not LPS-induced ERK1/2 phosphorylation to baseline. It did not affect JNK or p38 phosphorylation or the NF-κB pathway. Reduction in ERK1/2 phosphorylation by S100A12 was unlikely due to changes in intracellular reactive oxygen species, Ca2+ flux or to recruitment of phosphatases. We suggest that S100A12 may modulate sterile inflammation by blunting pro-inflammatory properties of lipid-poor serum amyloid A deposited in chronic lesions where both proteins are elevated as a consequence of macrophage activation.
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Affiliation(s)
- Yuen Ming Chung
- Inflammation and Infection Research Centre, University of New South Wales, Sydney, New South Wales, Australia
| | - Jesse Goyette
- Inflammation and Infection Research Centre, University of New South Wales, Sydney, New South Wales, Australia
| | - Nicodemus Tedla
- Inflammation and Infection Research Centre, University of New South Wales, Sydney, New South Wales, Australia
| | - Kenneth Hsu
- Inflammation and Infection Research Centre, University of New South Wales, Sydney, New South Wales, Australia
| | - Carolyn L. Geczy
- Inflammation and Infection Research Centre, University of New South Wales, Sydney, New South Wales, Australia
- * E-mail:
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Myeloid skewing in murine autoimmune arthritis occurs in hematopoietic stem and primitive progenitor cells. Blood 2012; 120:2203-13. [PMID: 22855602 DOI: 10.1182/blood-2011-11-391342] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Skewing toward myeloid cell production is often observed in chronic inflammation and autoimmune diseases. Herein, we determined whether persistent myeloid activation and proinflammatory output occurring in pathologic conditions is at the level of hematopoietic stem and primitive progenitor cells (HSPPCs). By using a mouse arthritis model, we found that even though HSPPCs in arthritis still retained the capacity to differentiate into different lineages, they acquired enhanced in vitro and in vivo propensity in a disease-dependent manner to generate myeloid cells, the key perpetrators of tissue damage in arthritis. This myeloid skewing was cell intrinsic, as arthritic HSPPCs up-regulate myeloid-specific transcripts including S100a8. Exogenous S100a8 promoted myeloid cell output from wild-type HSPPCs, suggesting mechanistic involvement of this gene in the myeloid priming that occurs in arthritic HSPPCs. Therefore, our results indicate that in arthritic mice, HSPPCs adopt a pathologic state that favors disease persistence.
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Cribbs DH, Berchtold NC, Perreau V, Coleman PD, Rogers J, Tenner AJ, Cotman CW. Extensive innate immune gene activation accompanies brain aging, increasing vulnerability to cognitive decline and neurodegeneration: a microarray study. J Neuroinflammation 2012; 9:179. [PMID: 22824372 PMCID: PMC3419089 DOI: 10.1186/1742-2094-9-179] [Citation(s) in RCA: 347] [Impact Index Per Article: 28.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2012] [Accepted: 07/23/2012] [Indexed: 12/16/2022] Open
Abstract
Background This study undertakes a systematic and comprehensive analysis of brain gene expression profiles of immune/inflammation-related genes in aging and Alzheimer’s disease (AD). Methods In a well-powered microarray study of young (20 to 59 years), aged (60 to 99 years), and AD (74 to 95 years) cases, gene responses were assessed in the hippocampus, entorhinal cortex, superior frontal gyrus, and post-central gyrus. Results Several novel concepts emerge. First, immune/inflammation-related genes showed major changes in gene expression over the course of cognitively normal aging, with the extent of gene response far greater in aging than in AD. Of the 759 immune-related probesets interrogated on the microarray, approximately 40% were significantly altered in the SFG, PCG and HC with increasing age, with the majority upregulated (64 to 86%). In contrast, far fewer immune/inflammation genes were significantly changed in the transition to AD (approximately 6% of immune-related probesets), with gene responses primarily restricted to the SFG and HC. Second, relatively few significant changes in immune/inflammation genes were detected in the EC either in aging or AD, although many genes in the EC showed similar trends in responses as in the other brain regions. Third, immune/inflammation genes undergo gender-specific patterns of response in aging and AD, with the most pronounced differences emerging in aging. Finally, there was widespread upregulation of genes reflecting activation of microglia and perivascular macrophages in the aging brain, coupled with a downregulation of select factors (TOLLIP, fractalkine) that when present curtail microglial/macrophage activation. Notably, essentially all pathways of the innate immune system were upregulated in aging, including numerous complement components, genes involved in toll-like receptor signaling and inflammasome signaling, as well as genes coding for immunoglobulin (Fc) receptors and human leukocyte antigens I and II. Conclusions Unexpectedly, the extent of innate immune gene upregulation in AD was modest relative to the robust response apparent in the aged brain, consistent with the emerging idea of a critical involvement of inflammation in the earliest stages, perhaps even in the preclinical stage, of AD. Ultimately, our data suggest that an important strategy to maintain cognitive health and resilience involves reducing chronic innate immune activation that should be initiated in late midlife.
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Affiliation(s)
- David H Cribbs
- Institute for Memory Impairments and Neurological Disorders, University of California, Irvine, 1226 Gillespie NRF, Irvine, CA 92697, USA.
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van Lent PLEM, Blom AB, Schelbergen RFP, Slöetjes A, Lafeber FPJG, Lems WF, Cats H, Vogl T, Roth J, van den Berg WB. Active involvement of alarmins S100A8 and S100A9 in the regulation of synovial activation and joint destruction during mouse and human osteoarthritis. ACTA ACUST UNITED AC 2012; 64:1466-76. [PMID: 22143922 DOI: 10.1002/art.34315] [Citation(s) in RCA: 152] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
OBJECTIVE To investigate whether alarmins S100A8 and S100A9 are involved in mediating cartilage destruction during murine and human osteoarthritis (OA). METHODS Two different murine models of OA that differed in terms of synovial activation were compared. Cartilage destruction was measured histologically. Synovial biopsy and serum samples from OA patients were derived from the Cohort Hip and Cohort Knee (CHECK) patients with symptomatic early OA. Expression of mediators in the synovium was measured by reverse transcription-polymerase chain reaction analysis and immunolocalization. RESULTS In collagenase-induced OA, which showed marked synovial activation, interleukin-1β was expressed at significant levels only during the early stages of disease, whereas S100A8 and S100A9 expression remained high for a prolonged period of time (up to day 21 after induction). In S100A9-knockout mice, we found a major impact of S100A8 and S100A9 on synovial activation (62% inhibition) and OA cartilage destruction (45-73% inhibition) as compared to wild-type controls. In contrast, in the surgically induced destabilized medial meniscus model, in which synovial involvement is scant, we found no role of S100A8 and S100A9 in the focal OA cartilage destruction. Examination of arthroscopic synovial biopsy samples from patients in the early symptomatic OA CHECK cohort revealed substantial levels of S100A8 and S100A9 messenger RNA and protein, which correlated significantly with synovial lining thickness, cellularity in the subintima, and joint destruction. Levels of S100A8/A9 serum protein were significantly enhanced (19%) at baseline in patients who had pronounced progression of joint destruction after 2 years. CONCLUSION Our data suggest that the S100A8 and S100A9 proteins are crucially involved in synovial activation and cartilage destruction during OA and that high levels may predict joint destruction in humans with OA.
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Schelbergen RFP, Blom AB, van den Bosch MHJ, Slöetjes A, Abdollahi-Roodsaz S, Schreurs BW, Mort JS, Vogl T, Roth J, van den Berg WB, van Lent PLEM. Alarmins S100A8 and S100A9 elicit a catabolic effect in human osteoarthritic chondrocytes that is dependent on Toll-like receptor 4. ACTA ACUST UNITED AC 2012; 64:1477-87. [PMID: 22127564 DOI: 10.1002/art.33495] [Citation(s) in RCA: 147] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
OBJECTIVE S100A8 and S100A9 are two Ca(2+) binding proteins classified as damage-associated molecular patterns or alarmins that are found in high amounts in the synovial fluid of osteoarthritis (OA) patients. The purpose of this study was to investigate whether S100A8 and/or S100A9 can interact with chondrocytes from OA patients to increase catabolic mediators. METHODS Using immunohistochemistry, we stained for S100A8 and S100A9 protein, matrix metalloproteinases (MMPs), and a cartilage-breakdown epitope specific for MMPs (VDIPEN) in cartilage from OA donors. Isolated chondrocytes or explants from OA and non-OA donors were stimulated with S100A8 and/or S100A9. Messenger RNA and protein levels of MMPs, cytokines, and cartilage matrix molecules were determined with quantitative reverse transcription-polymerase chain reaction and Luminex techniques, respectively. For receptor blocking studies, specific inhibitors for Toll-like receptor 4 (TLR-4), receptor for advanced glycation end products (RAGE), and carboxylated glycans were used. RESULTS In cartilage from OA patients, the expression of S100A8 and S100A9 protein close to chondrocytes was associated with proteoglycan depletion and expression of MMP-1, MMP-3, and VDIPEN. Stimulation of chondrocytes with S100A8 and S100A9 caused a strong up-regulation of catabolic markers (MMPs 1, 3, 9, and 13, interleukin-6 [IL-6], IL-8, and monocyte chemotactic protein 1) and down-regulation of anabolic markers (aggrecan and type II collagen), thereby favoring cartilage breakdown. Blocking TLR-4, but not carboxylated glycans or RAGE, inhibited the S100 effect. The catabolic S100 effect was significantly more pronounced in chondrocytes from OA patients as compared to those from non-OA patients, possibly due to higher TLR-4 expression. CONCLUSION S100A8 and S100A9 have a catabolic effect on human chondrocytes that is TLR-4 dependent. OA chondrocytes are more sensitive than normal chondrocytes to S100 stimulation.
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Ma D, Li Y, Hackfort B, Zhao Y, Xiao J, Swanson PC, Lappe J, Xiao P, Cullen D, Akhter M, Recker R, Xiao GG. Smoke-induced signal molecules in bone marrow cells from altered low-density lipoprotein receptor-related protein 5 mice. J Proteome Res 2012; 11:3548-60. [PMID: 22616666 DOI: 10.1021/pr2012158] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Mechanism underlying smoke-induced loss of bone mass is unknown. In this study, we hypothesized that protein signals induced by smoking in bone marrow may be associated with the loss of bone mass. Using a proteomics approach, we identified 38 proteins differentially expressed in bone marrow cells from low-density lipoprotein receptor-related protein 5 (Lrp5) mice exposed to cigarette smoking. Smoking effects on protein expression in bone marrow among three genotypes (Lrp5(+/+), Lrp5(G171V), and Lrp5(-/-)) varied. On the basis of the ratio of protein expression induced by smoking versus nonsmoking, smoke induced protein expression significantly in wild-type mice compared to the other two genotypes (Lrp5(G171V) and Lrp5(-/-)). These proteins include inhibitors of β-catenin and proteins associated with differentiation of osteoclasts. We observed that S100A8 and S100A9 were overexpressed in human smokers compared to nonsmokers, which confirmed the effect of smoking on the expression of two proteins in Lrp5 mice, suggesting the role of these proteins in bone remodeling. Smoke induced expression of S100A8 and S100A9 in a time-dependent fashion, which was opposite of the changes in the ratio of OPG/RANKL in bone marrow cells, suggesting that the high levels of S100A8 and S100A9 may be associated with smoke-induced bone loss by increasing bone resorption.
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Affiliation(s)
- Danjun Ma
- Genomics & Functional Proteomics Laboratories, Osteoporosis Research Center, Creighton University Medical Center, 601 N 30th Street, Suite 6730, Omaha, Nebraska 68131, USA
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Yammani RR. S100 proteins in cartilage: role in arthritis. Biochim Biophys Acta Mol Basis Dis 2012; 1822:600-6. [PMID: 22266138 DOI: 10.1016/j.bbadis.2012.01.006] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2011] [Revised: 12/20/2011] [Accepted: 01/05/2012] [Indexed: 01/15/2023]
Abstract
S100 proteins are low molecular weight calcium binding proteins expressed in vertebrates. The family constitutes 21 known members that are expressed in several tissues and cell types and play a major role in various cellular functions. Uniquely, members of the S100 family have both intracellular and extracellular functions. Several members of the S100 family (S100A1, S100A2, S100A4, S1008, S100A9, S100A11, and S100B) have been identified in human articular cartilage, and their expression is upregulated in diseased tissue. These S100 proteins elicit a catabolic signaling pathway via receptor for advanced glycation end products (RAGE) in cartilage and may promote progression of arthritis. This review summarizes our current understanding of the role of S100 proteins in cartilage biology and in the development of arthritis.
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Affiliation(s)
- Raghunatha R Yammani
- Department of Internal Medicine, Section of Molecular Medicine, Wake Forest School of Medicine, Medical Center Blvd, Winston-Salem, NC 27157, USA.
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Takagi M. Toll-like receptor--a potent driving force behind rheumatoid arthritis. J Clin Exp Hematop 2011; 51:77-92. [PMID: 22104306 DOI: 10.3960/jslrt.51.77] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Toll like receptor (TLR), one of the key functions of innate immune system, can recognize not only exogenous pathogen-associated molecular patterns, namely PAMPs, but also endogenous molecules created upon tissue injury, sterile inflammation and degeneration. Endogenous TLR ligands are called as damage-associated molecular patters (DAMPs), including endogenous molecules released by activated and necrotic cells, and extracellular matrix molecules. DAMPs are also known as alarmins. TLR research has brought about new insights in the rheumatic diseases. Previous reports suggest that TLRs and the signal pathways intensively contribute to the pathogenesis of rheumatoid arthritis (RA) and other arthritic conditions with interaction of various TLR ligands. Accumulated knowledge of TLR system is summarized to overlook TLRs and the signaling pathway in arthritis conditions, with special reference to RA.
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Affiliation(s)
- Michiaki Takagi
- Department of Orthopaedic Surgery, Yamagata University School of Medicine, Japan.
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Grevers LC, de Vries TJ, Vogl T, Abdollahi-Roodsaz S, Sloetjes AW, Leenen PJM, Roth J, Everts V, van den Berg WB, van Lent PLEM. S100A8 enhances osteoclastic bone resorption in vitro through activation of Toll-like receptor 4: implications for bone destruction in murine antigen-induced arthritis. ACTA ACUST UNITED AC 2011; 63:1365-75. [PMID: 21337316 DOI: 10.1002/art.30290] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
OBJECTIVE Rheumatoid arthritis, which is associated with elevated levels of S100A8 and S100A9, is characterized by severe bone erosions caused by enhanced osteoclast formation and activity. The aim of the present study was to investigate the role of S100A8 and S100A9 in osteoclastic bone destruction in murine antigen-induced arthritis (AIA). METHODS Bone destruction was analyzed in the arthritic knee joints of S100A9-deficient mice in which S100A8 protein expression was also lacking, and in wild-type (WT) controls. Osteoclast precursors from S100A9-deficient and WT mice were differentiated into osteoclasts in vitro. Additionally, precursors were stimulated with S100A8, S100A9, or S100A8/A9 during osteoclastogenesis. Receptor involvement was investigated using an anti-receptor for advanced glycation end products (anti-RAGE)-blocking antibody, soluble RAGE, or Toll-like receptor 4 (TLR-4)-deficient osteoclast precursors. The formation of osteoclasts and actin rings, the regulation of osteoclast markers, and bone resorption were analyzed. RESULTS Bone erosions and cathepsin K staining were significantly suppressed in S100A9-deficient mice after AIA induction. However, osteoclast precursors from S100A9-deficient mice developed normally into functional osteoclasts, which excludes a role for intrinsic S100A8/A9. In contrast to the results observed with S100A9 and S100A8/A9, the addition of S100A8 during osteoclastogenesis resulted in stimulation of osteoclast formation in conjunction with enhanced actin ring formation and increased bone resorption. Analysis of the putative receptor for S100A8 in osteoclastogenesis revealed that osteoclast differentiation and function could not be inhibited by blocking RAGE, whereas the increase in osteoclast numbers and enhanced bone resorption were completely abrogated using TLR-4-deficient osteoclast precursors. CONCLUSION These results demonstrate that S100A8 stimulated osteoclast formation and activity and suggest that both S100A8 and TLR-4 are important factors in mediating osteoclastic bone destruction in experimental arthritis.
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