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Eapen MS, Lu W, Dey S, Chia C, Hardikar A, Hassan MI, Bhattarai P, Gaikwad AV, Das S, Hansbro PM, Singhera GK, Hackett TL, Sohal SS. Differential expression of mast cells in the small airways and alveolar septa of current smokers and patients with small airway disease and COPD. ERJ Open Res 2024; 10:00579-2023. [PMID: 38500797 PMCID: PMC10945381 DOI: 10.1183/23120541.00579-2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 01/16/2024] [Indexed: 03/20/2024] Open
Abstract
Background COPD patients suffer from dysregulated and suppressed immune functionality, determined by their loss of degranulating capacity. Here we provide crucial information on the presence of degranulated mast cells (MCs) in COPD airways and demonstrate their relationship to lung physiology and airway remodelling. Methods Small airway lung resections from non-smoking controls (NC), normal lung function smokers (NLFS), small airway disease (SAD), and mild-to-moderate COPD current smokers (COPD-CS) and ex-smokers (COPD-ES) were dual immuno-stained with MC tryptase and degranulation marker lysosome-associated membrane protein (LAMP)-1. Total MCs, degranulating MCs and non-MCs were enumerated in small airway epithelium and subepithelium, and in alveolar septa. Results In the small airway wall subepithelial areas, COPD-CS and COPD-ES patients had significantly lower MCs than the NC group (p<0.05), although the numbers were considerably higher in the small airway epithelium (p<0.01). Degranulating non-MCs were higher in SAD (p<0.05) than in COPD in the small airway subepithelium. In contrast, there were significant increases in total MCs (degranulated and non-degranulated) and degranulated non-MCs in the alveolar septum of COPD patients compared with the NC group (p<001). The lower numbers of MCs in the subepithelium correlated with lower forced expiratory volume in 1 s (FEV1)/forced vital capacity (FVC) and forced expiratory flow at 25-75% of FVC (FEF25-75%), higher smoking rates in COPD patients, and increased small airway wall thickness and extracellular matrix. The increase in MCs in the alveolar septum negatively correlated with FEF25-75%. Conclusions This study is the first to assess the differential pattern of MC, degranulating MC and non-MC populations in the small airways and alveoli of COPD patients. The spatial positioning of the MCs within the airways showed variable correlations with lung function.
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Affiliation(s)
- Mathew Suji Eapen
- Respiratory Translational Research Group, Department of Laboratory Medicine, School of Health Sciences, College of Health and Medicine, University of Tasmania, Launceston, Australia
| | - Wenying Lu
- Respiratory Translational Research Group, Department of Laboratory Medicine, School of Health Sciences, College of Health and Medicine, University of Tasmania, Launceston, Australia
- Launceston Respiratory and Sleep Centre, Launceston, Australia
| | - Surajit Dey
- Respiratory Translational Research Group, Department of Laboratory Medicine, School of Health Sciences, College of Health and Medicine, University of Tasmania, Launceston, Australia
| | - Collin Chia
- Respiratory Translational Research Group, Department of Laboratory Medicine, School of Health Sciences, College of Health and Medicine, University of Tasmania, Launceston, Australia
- Launceston Respiratory and Sleep Centre, Launceston, Australia
- Department of Respiratory Medicine, Launceston General Hospital, Launceston, Australia
| | - Ashutosh Hardikar
- Department of Cardiothoracic Surgery, Royal Hobart Hospital, Hobart, Australia
| | - Md Imtaiyaz Hassan
- Centre for Interdisciplinary Research in Basic Sciences, Jamia Millia Islamia, New Delhi, India
| | - Prem Bhattarai
- Respiratory Translational Research Group, Department of Laboratory Medicine, School of Health Sciences, College of Health and Medicine, University of Tasmania, Launceston, Australia
| | - Archana Vijay Gaikwad
- Respiratory Translational Research Group, Department of Laboratory Medicine, School of Health Sciences, College of Health and Medicine, University of Tasmania, Launceston, Australia
| | - Shatarupa Das
- Faculty of Science, Centre for Inflammation, Centenary Institute and University of Technology Sydney School of Life Sciences, Sydney, Australia
| | - Philip M. Hansbro
- Faculty of Science, Centre for Inflammation, Centenary Institute and University of Technology Sydney School of Life Sciences, Sydney, Australia
| | - Gurpreet Kaur Singhera
- Department of Anaesthesiology, Pharmacology and Therapeutics, University of British Columbia, Vancouver, BC, Canada
- Centre for Heart Lung Innovation, St Paul's Hospital, Vancouver, BC, Canada
| | - Tillie-Louise Hackett
- Department of Anaesthesiology, Pharmacology and Therapeutics, University of British Columbia, Vancouver, BC, Canada
- Centre for Heart Lung Innovation, St Paul's Hospital, Vancouver, BC, Canada
| | - Sukhwinder Singh Sohal
- Respiratory Translational Research Group, Department of Laboratory Medicine, School of Health Sciences, College of Health and Medicine, University of Tasmania, Launceston, Australia
- Launceston Respiratory and Sleep Centre, Launceston, Australia
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2
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Wang X, Xu M, Meng L, Song M, Jia Z, Zhao L, Han X, Wang S, Zong J, Lu M. The awareness and determinants of diabetic foot ulcer prevention among diabetic patients: Insights from NHANES (2011-2018). Prev Med Rep 2023; 36:102433. [PMID: 37781107 PMCID: PMC10534215 DOI: 10.1016/j.pmedr.2023.102433] [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: 07/09/2023] [Revised: 09/19/2023] [Accepted: 09/20/2023] [Indexed: 10/03/2023] Open
Abstract
The prevention of diabetic foot ulcers (DFU) precedes treatment, in that early prevention significantly reduces the incidence of foot ulcers. The main objectives of this study were to examine the current prevalence of proactive foot ulcer examinations among diabetic patients and analyze influencing factors, in order to provide a scientific reference for the prevention of DFU in diabetic patients. The National Health and Nutrition Examination Survey (NHANES) 2011-2018 (n = 1278) data were utilized in this cross-sectional study. The dependent variable was whether patients underwent self-initiated foot ulcer inspections; risk factors that may lead to foot ulcers were included as independent variables. To explore the connection between the patient's subjective motivation to inspect foot ulcers and risk variables, the weighted logistic regression model was further carried out. Among all risk factors, race, body mass index (BMI) and hypertension were statistically significant between whether patients were examined for foot ulcers or not. In the fully adjusted logistic regression model, only hypertension was positively correlated with diabetic patient-initiated examination for foot ulcers. This study suggests that there is still room for improvement in the knowledge and behavior of diabetic patients to be proactive in preventing DFU. Health care and community workers should conduct targeted training on diabetic foot prevention to reduce and prevent DFU by reinforcing knowledge to build positive attitudes and drive preventive behavior change.
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Affiliation(s)
- Xingkai Wang
- Department of Trauma and Tissue Repair Surgery, Dalian Municipal Central Hospital, Dalian, China
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Mengying Xu
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Lei Meng
- The First Affiliated Hospital of Nanhua Medical University, Hengyang, China
| | - Mingzhi Song
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Zhuqiang Jia
- The First Affiliated Hospital of Dalian Medical University, Dalian, China
- Naqu People's Hospital, Tibet, China
| | - Lin Zhao
- Department of Quality Management, Dalian Municipal Central Hospital, Dalian, China
| | - Xin Han
- Naqu People's Hospital, Tibet, China
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Shouyu Wang
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Junwei Zong
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Ming Lu
- Department of Trauma and Tissue Repair Surgery, Dalian Municipal Central Hospital, Dalian, China
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3
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Tu J, Li W, Hansbro PM, Yan Q, Bai X, Donovan C, Kim RY, Galvao I, Das A, Yang C, Zou J, Diwan A. Smoking and tetramer tryptase accelerate intervertebral disc degeneration by inducing METTL14-mediated DIXDC1 m 6 modification. Mol Ther 2023; 31:2524-2542. [PMID: 37340635 PMCID: PMC10422004 DOI: 10.1016/j.ymthe.2023.06.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 04/24/2023] [Accepted: 06/14/2023] [Indexed: 06/22/2023] Open
Abstract
Although cigarette smoking (CS) and low back pain (LBP) are common worldwide, their correlations and the mechanisms of action remain unclear. We have shown that excessive activation of mast cells (MCs) and their proteases play key roles in CS-associated diseases, like asthma, chronic obstructive pulmonary disease (COPD), blood coagulation, and lung cancer. Previous studies have also shown that MCs and their proteases induce degenerative musculoskeletal disease. By using a custom-designed smoke-exposure mouse system, we demonstrated that CS results in intervertebral disc (IVD) degeneration and release of MC-restricted tetramer tryptases (TTs) in the IVDs. TTs were found to regulate the expression of methyltransferase 14 (METTL14) at the epigenetic level by inducing N6-methyladenosine (m6A) deposition in the 3' untranslated region (UTR) of the transcript that encodes dishevelled-axin (DIX) domain-containing 1 (DIXDC1). That reaction increases the mRNA stability and expression of Dixdc1. DIXDC1 functionally interacts with disrupted in schizophrenia 1 (DISC1) to accelerate the degeneration and senescence of nucleus pulposus (NP) cells by activating a canonical Wnt pathway. Our study demonstrates the association between CS, MC-derived TTs, and LBP. These findings raise the possibility that METTL14-medicated DIXDC1 m6A modification could serve as a potential therapeutic target to block the development of degeneration of the NP in LBP patients.
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Affiliation(s)
- Ji Tu
- Spine Labs, St. George & Sutherland Clinical School, Faculty of Medicine, University of New South Wales, Sydney, NSW, Australia
| | - Wentian Li
- Spine Labs, St. George & Sutherland Clinical School, Faculty of Medicine, University of New South Wales, Sydney, NSW, Australia
| | - Philip M Hansbro
- Faculty of Science, School of Life Sciences, Centre for Inflammation, Centenary Institute, University of Technology Sydney, Sydney, NSW, Australia; Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, Newcastle, NSW, Australia
| | - Qi Yan
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Xupeng Bai
- Center for Innovation and Translational Medicine, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Zhejiang Provincial Key Laboratory of Pancreatic Disease, First Affiliated Hospital, and Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, China
| | - Chantal Donovan
- Faculty of Science, School of Life Sciences, Centre for Inflammation, Centenary Institute, University of Technology Sydney, Sydney, NSW, Australia; Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, Newcastle, NSW, Australia
| | - Richard Y Kim
- Faculty of Science, School of Life Sciences, Centre for Inflammation, Centenary Institute, University of Technology Sydney, Sydney, NSW, Australia; Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, Newcastle, NSW, Australia
| | - Izabela Galvao
- Faculty of Science, School of Life Sciences, Centre for Inflammation, Centenary Institute, University of Technology Sydney, Sydney, NSW, Australia; Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, Newcastle, NSW, Australia
| | - Abhirup Das
- Spine Labs, St. George & Sutherland Clinical School, Faculty of Medicine, University of New South Wales, Sydney, NSW, Australia
| | - Cao Yang
- Department of Orthopedic Surgery, Wuhan Union Hospital, Tongji Medical School, Huazhong University of Science and Technology, Wuhan, China.
| | - Jun Zou
- Department of Orthopedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China.
| | - Ashish Diwan
- Spine Labs, St. George & Sutherland Clinical School, Faculty of Medicine, University of New South Wales, Sydney, NSW, Australia; Spine Service, Department of Orthopedic Surgery, St. George Hospital, Kogarah, NSW, Australia.
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Braun S, Zaucke F, Brenneis M, Rapp AE, Pollinger P, Sohn R, Jenei-Lanzl Z, Meurer A. The Corpus Adiposum Infrapatellare (Hoffa’s Fat Pad)—The Role of the Infrapatellar Fat Pad in Osteoarthritis Pathogenesis. Biomedicines 2022; 10:biomedicines10051071. [PMID: 35625808 PMCID: PMC9138316 DOI: 10.3390/biomedicines10051071] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 04/28/2022] [Accepted: 05/03/2022] [Indexed: 02/01/2023] Open
Abstract
In recent years, the infrapatellar fat pad (IFP) has gained increasing research interest. The contribution of the IFP to the development and progression of knee osteoarthritis (OA) through extensive interactions with the synovium, articular cartilage, and subchondral bone is being considered. As part of the initiation process of OA, IFP secretes abundant pro-inflammatory mediators among many other factors. Today, the IFP is (partially) resected in most total knee arthroplasties (TKA) allowing better visualization during surgical procedures. Currently, there is no clear guideline providing evidence in favor of or against IFP resection. With increasing numbers of TKAs, there is a focus on preventing adverse postoperative outcomes. Therefore, anatomic features, role in the development of knee OA, and consequences of resecting versus preserving the IFP during TKA are reviewed in the following article.
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Affiliation(s)
- Sebastian Braun
- Department of Orthopedics (Friedrichsheim), University Hospital Frankfurt, Goethe University, 60528 Frankfurt am Main, Germany; (M.B.); (A.M.)
- Correspondence:
| | - Frank Zaucke
- Dr. Rolf M. Schwiete Research Unit for Osteoarthritis, Department of Orthopedics (Friedrichsheim), University Hospital Frankfurt, Goethe University, 60528 Frankfurt am Main, Germany; (F.Z.); (A.E.R.); (P.P.); (R.S.); (Z.J.-L.)
| | - Marco Brenneis
- Department of Orthopedics (Friedrichsheim), University Hospital Frankfurt, Goethe University, 60528 Frankfurt am Main, Germany; (M.B.); (A.M.)
| | - Anna E. Rapp
- Dr. Rolf M. Schwiete Research Unit for Osteoarthritis, Department of Orthopedics (Friedrichsheim), University Hospital Frankfurt, Goethe University, 60528 Frankfurt am Main, Germany; (F.Z.); (A.E.R.); (P.P.); (R.S.); (Z.J.-L.)
| | - Patrizia Pollinger
- Dr. Rolf M. Schwiete Research Unit for Osteoarthritis, Department of Orthopedics (Friedrichsheim), University Hospital Frankfurt, Goethe University, 60528 Frankfurt am Main, Germany; (F.Z.); (A.E.R.); (P.P.); (R.S.); (Z.J.-L.)
| | - Rebecca Sohn
- Dr. Rolf M. Schwiete Research Unit for Osteoarthritis, Department of Orthopedics (Friedrichsheim), University Hospital Frankfurt, Goethe University, 60528 Frankfurt am Main, Germany; (F.Z.); (A.E.R.); (P.P.); (R.S.); (Z.J.-L.)
| | - Zsuzsa Jenei-Lanzl
- Dr. Rolf M. Schwiete Research Unit for Osteoarthritis, Department of Orthopedics (Friedrichsheim), University Hospital Frankfurt, Goethe University, 60528 Frankfurt am Main, Germany; (F.Z.); (A.E.R.); (P.P.); (R.S.); (Z.J.-L.)
| | - Andrea Meurer
- Department of Orthopedics (Friedrichsheim), University Hospital Frankfurt, Goethe University, 60528 Frankfurt am Main, Germany; (M.B.); (A.M.)
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5
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Zhao XO, Lampinen M, Rollman O, Sommerhoff CP, Paivandy A, Pejler G. Mast cell chymase affects the functional properties of primary human airway fibroblasts: implications for asthma. J Allergy Clin Immunol 2021; 149:718-727. [PMID: 34331992 DOI: 10.1016/j.jaci.2021.07.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 06/23/2021] [Accepted: 07/08/2021] [Indexed: 12/13/2022]
Abstract
BACKGROUND Mast cells have a profound impact on allergic asthma. Under such conditions, mast cells undergo degranulation, resulting in the release of exceptionally large amounts of mast cell-restricted proteases. However, the role of these proteases in asthma is only partially understood. OBJECTIVES Here we hypothesized that the mast cell proteases can influence the functionality of human lung fibroblasts. METHODS Primary human lung fibroblasts (HLFs) were treated with mast cell chymase or tryptase, followed by assessment of parameters related to fibroblast function. RESULTS HLFs underwent major morphological changes in response to chymase, showing signs of cellular contraction, but were refractory to tryptase. However, no effects of chymase on HLF viability or proliferation were seen. Chymase, but not tryptase, had a major impact on the output of extracellular matrix-associated compounds from the HLFs, including degradation of fibronectin and collagen-1, and activation of pro-matrix metalloprotease-2. Further, chymase induced the release of various chemotactic factors from HLFs. In line with this, conditioned medium from chymase-treated HLFs showed chemotactic activity on neutrophils. Transcriptome analysis revealed that chymase induced a pro-inflammatory gene transcription profile in HLFs, whereas tryptase had minimal effects. CONCLUSION Our findings reveal that chymase, but not tryptase, has a major impact on the phenotype of primary airway fibroblasts, by modifying their output of extracellular matrix components and by inducing a pro-inflammatory phenotype. CLINICAL IMPLICATION This study shows that mast cell chymase has a major impact on airway fibroblasts, thereby providing insight into how mast cells can influence the manifestations of asthma.
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Affiliation(s)
- Xinran O Zhao
- Uppsala University, Department of Medical Biochemistry and Microbiology, Uppsala, Sweden
| | - Maria Lampinen
- Uppsala University, Department of Medical Biochemistry and Microbiology, Uppsala, Sweden; Uppsala University, Department of Medical Sciences, Uppsala, Sweden
| | - Ola Rollman
- Uppsala University, Department of Medical Sciences, Uppsala, Sweden
| | | | - Aida Paivandy
- Uppsala University, Department of Medical Biochemistry and Microbiology, Uppsala, Sweden.
| | - Gunnar Pejler
- Uppsala University, Department of Medical Biochemistry and Microbiology, Uppsala, Sweden.
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6
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Alim MA, Peterson M, Pejler G. Do Mast Cells Have a Role in Tendon Healing and Inflammation? Cells 2020; 9:cells9051134. [PMID: 32375419 PMCID: PMC7290807 DOI: 10.3390/cells9051134] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 04/29/2020] [Accepted: 04/30/2020] [Indexed: 12/15/2022] Open
Abstract
Understanding the links between the tendon healing process, inflammatory mechanisms, and tendon homeostasis/pain after tissue damage is crucial in developing novel therapeutics for human tendon disorders. The inflammatory mechanisms that are operative in response to tendon injury are not fully understood, but it has been suggested that inflammation occurring in response to nerve signaling, i.e., neurogenic inflammation, has a pathogenic role. The mechanisms driving such neurogenic inflammation are presently not clear. However, it has recently been demonstrated that mast cells present within the injured tendon can express glutamate receptors, raising the possibility that mast cells may be sensitive to glutamate signaling and thereby modulate neurogenic inflammation following tissue injury. In this review, we discuss the role of mast cells in the communication with peripheral nerves, and their emerging role in tendon healing and inflammation after injury.
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Affiliation(s)
- Md Abdul Alim
- Department of Public Health and Caring Sciences, General Medicine, Uppsala University, 751 22 Uppsala, Sweden;
- Department of Medical Biochemistry and Microbiology, Uppsala University, 75123 Uppsala, Sweden
- Correspondence: (M.A.A.); (G.P.)
| | - Magnus Peterson
- Department of Public Health and Caring Sciences, General Medicine, Uppsala University, 751 22 Uppsala, Sweden;
- Academic Primary Health Care, Region Uppsala, Sweden
| | - Gunnar Pejler
- Department of Medical Biochemistry and Microbiology, Uppsala University, 75123 Uppsala, Sweden
- Department of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, 756 51 Uppsala, Sweden
- Correspondence: (M.A.A.); (G.P.)
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7
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Pejler G. The emerging role of mast cell proteases in asthma. Eur Respir J 2019; 54:13993003.00685-2019. [PMID: 31371445 DOI: 10.1183/13993003.00685-2019] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Accepted: 07/23/2019] [Indexed: 12/31/2022]
Abstract
It is now well established that mast cells (MCs) play a crucial role in asthma. This is supported by multiple lines of evidence, including both clinical studies and studies on MC-deficient mice. However, there is still only limited knowledge of the exact effector mechanism(s) by which MCs influence asthma pathology. MCs contain large amounts of secretory granules, which are filled with a variety of bioactive compounds including histamine, cytokines, lysosomal hydrolases, serglycin proteoglycans and a number of MC-restricted proteases. When MCs are activated, e.g. in response to IgE receptor cross-linking, the contents of their granules are released to the exterior and can cause a massive inflammatory reaction. The MC-restricted proteases include tryptases, chymases and carboxypeptidase A3, and these are expressed and stored at remarkably high levels. There is now emerging evidence supporting a prominent role of these enzymes in the pathology of asthma. Interestingly, however, the role of the MC-restricted proteases is multifaceted, encompassing both protective and detrimental activities. Here, the current knowledge of how the MC-restricted proteases impact on asthma is reviewed.
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Affiliation(s)
- Gunnar Pejler
- Dept of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden .,Dept of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, Uppsala, Sweden
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8
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Richards J, Tang S, Gunsch G, Sul P, Wiet M, Flanigan DC, Khan SN, Moore S, Walter B, Purmessur D. Mast Cell/Proteinase Activated Receptor 2 (PAR2) Mediated Interactions in the Pathogenesis of Discogenic Back Pain. Front Cell Neurosci 2019; 13:294. [PMID: 31333416 PMCID: PMC6625229 DOI: 10.3389/fncel.2019.00294] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Accepted: 06/17/2019] [Indexed: 12/19/2022] Open
Abstract
Mast cells (MCs) are present in the painful degenerate human intervertebral disc (IVD) and are associated with disease pathogenesis. MCs release granules containing enzymatic and inflammatory factors in response to stimulants or allergens. The serine protease, tryptase, is unique to MCs and its activation of the G-protein coupled receptor, Protease Activated Receptor 2 (PAR2), induces inflammation and degradation in osteoarthritic cartilage. Our previously published work has demonstrated increased levels of MC marker tryptase in IVD samples from discogenic back pain patients compared to healthy control IVD samples including expression of chemotactic agents that may facilitate MC migration into the IVD. To further elucidate MCs’ role in the IVD and mechanisms underlying its effects, we investigated whether (1) human IVD cells can promote MC migration, (2) MC tryptase can mediate up-regulation of inflammatory/catabolic process in human IVD cells and tissue, and (3) the potential of PAR2 antagonist to function as a therapeutic drug in in vitro human and ex vivo bovine pilot models of disease. MC migration was quantitatively assessed using conditioned media from primary human IVD cells and MC migration examined through Matrigel. Exposure to soluble IVD factors significantly enhanced MC migration, suggesting IVD cells can recruit MCs. We also demonstrated significant upregulation of MC chemokine SCF and angiogenic factor VEGFA gene expression in human IVD cells in vitro in response to recombinant human tryptase, suggesting tryptase can enhance recruitment of MCs and promotion of angiogenesis into the usually avascular IVD. Furthermore, tryptase can degrade proteoglycans in IVD tissue as demonstrated by significant increases in glycosaminoglycans released into surrounding media. This can create a catabolic microenvironment compromising structural integrity and facilitating vascular migration usually inhibited by the anti-angiogenic IVD matrix. Finally, as a “proof of concept” study, we examined the therapeutic potential of PAR2 antagonist (PAR2A) on human IVD cells and bovine organ culture IVD model. While preliminary data shows promise and points toward structural restoration of the bovine IVD including down-regulation of VEGFA, effects of PAR2 antagonist on human IVD cells differ between gender and donors suggesting that further validation is required with larger cohorts of human specimens.
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Affiliation(s)
- Justin Richards
- College of Arts and Sciences, The Ohio State University, Columbus, OH, United States
| | - Shirley Tang
- College of Engineering, The Ohio State University, Columbus, OH, United States
| | - Gilian Gunsch
- College of Arts and Sciences, The Ohio State University, Columbus, OH, United States
| | - Pavel Sul
- College of Engineering, The Ohio State University, Columbus, OH, United States
| | - Matthew Wiet
- College of Engineering, The Ohio State University, Columbus, OH, United States
| | - David C Flanigan
- Department of Orthopaedics, Wexner Medical Center, The Ohio State University, Columbus, OH, United States
| | - Safdar N Khan
- Department of Orthopaedics, Wexner Medical Center, The Ohio State University, Columbus, OH, United States
| | - Sarah Moore
- College of Veterinary Medicine, The Ohio State University, Columbus, OH, United States
| | - Benjamin Walter
- College of Engineering, The Ohio State University, Columbus, OH, United States.,Department of Orthopaedics, Wexner Medical Center, The Ohio State University, Columbus, OH, United States
| | - Devina Purmessur
- College of Engineering, The Ohio State University, Columbus, OH, United States.,Department of Orthopaedics, Wexner Medical Center, The Ohio State University, Columbus, OH, United States
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Hayes AJ, Melrose J. Glycosaminoglycan and Proteoglycan Biotherapeutics in Articular Cartilage Protection and Repair Strategies: Novel Approaches to Visco‐supplementation in Orthobiologics. ADVANCED THERAPEUTICS 2019. [DOI: 10.1002/adtp.201900034] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Anthony J. Hayes
- Bioimaging Research HubCardiff School of BiosciencesCardiff University Cardiff CF10 3AX Wales UK
| | - James Melrose
- Graduate School of Biomedical EngineeringUNSW Sydney Sydney NSW 2052 Australia
- Raymond Purves Bone and Joint Research LaboratoriesKolling Institute of Medical ResearchRoyal North Shore Hospital and The Faculty of Medicine and HealthUniversity of Sydney St. Leonards NSW 2065 Australia
- Sydney Medical SchoolNorthernRoyal North Shore HospitalSydney University St. Leonards NSW 2065 Australia
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10
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Wang Q, Lepus CM, Raghu H, Reber LL, Tsai MM, Wong HH, von Kaeppler E, Lingampalli N, Bloom MS, Hu N, Elliott EE, Oliviero F, Punzi L, Giori NJ, Goodman SB, Chu CR, Sokolove J, Fukuoka Y, Schwartz LB, Galli SJ, Robinson WH. IgE-mediated mast cell activation promotes inflammation and cartilage destruction in osteoarthritis. eLife 2019; 8:39905. [PMID: 31084709 PMCID: PMC6516833 DOI: 10.7554/elife.39905] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2018] [Accepted: 04/10/2019] [Indexed: 01/15/2023] Open
Abstract
Osteoarthritis is characterized by articular cartilage breakdown, and emerging evidence suggests that dysregulated innate immunity is likely involved. Here, we performed proteomic, transcriptomic, and electron microscopic analyses to demonstrate that mast cells are aberrantly activated in human and murine osteoarthritic joint tissues. Using genetic models of mast cell deficiency, we demonstrate that lack of mast cells attenuates osteoarthritis in mice. Using genetic and pharmacologic approaches, we show that the IgE/FcεRI/Syk signaling axis is critical for the development of osteoarthritis. We find that mast cell-derived tryptase induces inflammation, chondrocyte apoptosis, and cartilage breakdown. Our findings demonstrate a central role for IgE-dependent mast cell activation in the pathogenesis of osteoarthritis, suggesting that targeting mast cells could provide therapeutic benefit in human osteoarthritis. Editorial note: This article has been through an editorial process in which the authors decide how to respond to the issues raised during peer review. The Reviewing Editor's assessment is that all the issues have been addressed (see decision letter).
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Affiliation(s)
- Qian Wang
- GRECC, VA Palo Alto Health Care System, Palo Alto, United States.,Division of Immunology and Rheumatology, Stanford University School of Medicine, Stanford, United States
| | - Christin M Lepus
- GRECC, VA Palo Alto Health Care System, Palo Alto, United States.,Division of Immunology and Rheumatology, Stanford University School of Medicine, Stanford, United States
| | - Harini Raghu
- GRECC, VA Palo Alto Health Care System, Palo Alto, United States.,Division of Immunology and Rheumatology, Stanford University School of Medicine, Stanford, United States
| | - Laurent L Reber
- Department of Pathology, Stanford University School of Medicine, Stanford, United States
| | - Mindy M Tsai
- Department of Pathology, Stanford University School of Medicine, Stanford, United States
| | - Heidi H Wong
- GRECC, VA Palo Alto Health Care System, Palo Alto, United States.,Division of Immunology and Rheumatology, Stanford University School of Medicine, Stanford, United States
| | - Ericka von Kaeppler
- GRECC, VA Palo Alto Health Care System, Palo Alto, United States.,Division of Immunology and Rheumatology, Stanford University School of Medicine, Stanford, United States
| | - Nithya Lingampalli
- GRECC, VA Palo Alto Health Care System, Palo Alto, United States.,Division of Immunology and Rheumatology, Stanford University School of Medicine, Stanford, United States
| | - Michelle S Bloom
- GRECC, VA Palo Alto Health Care System, Palo Alto, United States.,Division of Immunology and Rheumatology, Stanford University School of Medicine, Stanford, United States
| | - Nick Hu
- GRECC, VA Palo Alto Health Care System, Palo Alto, United States.,Division of Immunology and Rheumatology, Stanford University School of Medicine, Stanford, United States
| | - Eileen E Elliott
- GRECC, VA Palo Alto Health Care System, Palo Alto, United States.,Division of Immunology and Rheumatology, Stanford University School of Medicine, Stanford, United States
| | - Francesca Oliviero
- Rheumatology Unit, Department of Medicine, University of Padova, Padova, Italy
| | - Leonardo Punzi
- Rheumatology Unit, Department of Medicine, University of Padova, Padova, Italy
| | - Nicholas J Giori
- GRECC, VA Palo Alto Health Care System, Palo Alto, United States.,Department of Orthopedic Surgery, Stanford University School of Medicine, Stanford, United States
| | - Stuart B Goodman
- Department of Orthopedic Surgery, Stanford University School of Medicine, Stanford, United States
| | - Constance R Chu
- GRECC, VA Palo Alto Health Care System, Palo Alto, United States.,Department of Orthopedic Surgery, Stanford University School of Medicine, Stanford, United States
| | - Jeremy Sokolove
- GRECC, VA Palo Alto Health Care System, Palo Alto, United States.,Division of Immunology and Rheumatology, Stanford University School of Medicine, Stanford, United States
| | - Yoshihiro Fukuoka
- Department of Internal Medicine, Virginia Commonwealth University School of Medicine, Richmond, United States
| | - Lawrence B Schwartz
- Department of Internal Medicine, Virginia Commonwealth University School of Medicine, Richmond, United States
| | - Stephen J Galli
- Department of Pathology, Stanford University School of Medicine, Stanford, United States.,Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, United States
| | - William H Robinson
- GRECC, VA Palo Alto Health Care System, Palo Alto, United States.,Division of Immunology and Rheumatology, Stanford University School of Medicine, Stanford, United States
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11
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Abstract
Fibrosis is a medical condition characterized by an excessive deposition of extracellular matrix compounds such as collagen in tissues. Fibrotic lesions are present in many diseases and can affect all organs. The excessive extracellular matrix accumulation in these conditions can often have serious consequences and in many cases be life-threatening. A typical event seen in many fibrotic conditions is a profound accumulation of mast cells (MCs), suggesting that these cells can contribute to the pathology. Indeed, there is now substantialv evidence pointing to an important role of MCs in fibrotic disease. However, investigations from various clinical settings and different animal models have arrived at partly contradictory conclusions as to how MCs affect fibrosis, with many studies suggesting a detrimental role of MCs whereas others suggest that MCs can be protective. Here, we review the current knowledge of how MCs can affect fibrosis.
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Affiliation(s)
- Peter Bradding
- Department of Infection, Immunity and Inflammation, Institute for Lung Health, University of Leicester, Leicester, UK
| | - Gunnar Pejler
- Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden.,Department of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, Uppsala, Sweden
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12
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Li H, Wang D, Yuan Y, Min J. New insights on the MMP-13 regulatory network in the pathogenesis of early osteoarthritis. Arthritis Res Ther 2017; 19:248. [PMID: 29126436 PMCID: PMC5681770 DOI: 10.1186/s13075-017-1454-2] [Citation(s) in RCA: 192] [Impact Index Per Article: 27.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2017] [Accepted: 10/12/2017] [Indexed: 01/07/2023] Open
Abstract
Osteoarthritis (OA) is the most common joint disorder and affects approximately half of the aged population. Current treatments for OA are largely palliative until the articular cartilage has been deeply damaged and irreversible morphological changes appear. Thus, effective methods are needed for diagnosing and monitoring the progression of OA during its early stages when therapeutic drugs or biological agents are most likely to be effective. Various proteinases involved in articular cartilage degeneration in pre-OA conditions, which may represent the earliest reversible measurable changes, are considered diagnostic and therapeutic targets for early OA. Of these proteinases, matrix metalloproteinase 13 (MMP-13) has received the most attention, because it is a central node in the cartilage degradation network. In this review, we highlight the main MMP-13-related changes in OA chondrocytes, including alterations in the activity and expression level of MMP-13 by upstream regulatory factors, DNA methylation, various non-coding RNAs (ncRNAs), and autophagy. Because MMP-13 and its regulatory networks are suitable targets for the development of effective early treatment strategies for OA, we discuss the specific targets of MMP-13, including upstream regulatory proteins, DNA methylation, non-coding RNAs, and autophagy-related proteins of MMP-13, and their therapeutic potential to inhibit the development of OA. Moreover, the various entities mentioned in this review might be useful as early biomarkers and for personalized approaches to disease prevention and treatment by improving the phenotyping of early OA patients.
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Affiliation(s)
- Heng Li
- The First Affiliated Hospital of Huzhou Teachers College, Zhejiang Province, 313000, China
| | - Dan Wang
- The First Affiliated Hospital of Huzhou Teachers College, Zhejiang Province, 313000, China
| | - Yongjian Yuan
- The First Affiliated Hospital of Huzhou Teachers College, Zhejiang Province, 313000, China
| | - Jikang Min
- The First Affiliated Hospital of Huzhou Teachers College, Zhejiang Province, 313000, China. .,Department of Orthopaedics, The First Affiliated Hospital of Huzhou Teachers College, The First People's Hospital of Huzhou, Zhejiang Province, 313000, China.
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13
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Stevens RL, McNeil HP, Wensing LA, Shin K, Wong GW, Hansbro PM, Krilis SA. Experimental Arthritis Is Dependent on Mouse Mast Cell Protease-5. J Biol Chem 2017; 292:5392-5404. [PMID: 28193842 DOI: 10.1074/jbc.m116.773416] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Revised: 02/06/2017] [Indexed: 11/06/2022] Open
Abstract
The constitutive heparin+ (HP) mast cells (MCs) in mice express mouse MC protease (mMCP)-5 and carboxypeptidase A (mMC-CPA). The amino acid sequence of mMCP-5 is most similar to that of human chymase-1, as are the nucleotide sequences of their genes and transcripts. Using a homologous recombination approach, a C57BL/6 mouse line was created that possessed a disrupted mMCP-5 gene. The resulting mice were fertile and had no obvious developmental abnormality. Lack of mMCP-5 protein did not alter the granulation of the IL-3/IL-9-dependent mMCP-2+ MCs in the jejunal mucosa of Trichinella spiralis-infected mice. In contrast, the constitutive HP+ MCs in the tongues of mMCP-5-null mice were poorly granulated and lacked mMC-CPA protein. Bone marrow-derived MCs were readily developed from the transgenic mice using IL-3. Although these MCs contained high levels of mMC-CPA mRNA, they also lacked the latter exopeptidase. mMCP-5 protein is therefore needed to target translated mMC-CPA to the secretory granule along with HP-containing serglycin proteoglycans. Alternately, mMCP-5 is needed to protect mMC-CPA from autolysis in the cell's granules. Fibronectin was identified as a target of mMCP-5, and the exocytosis of mMCP-5 from the MCs in the mouse's peritoneal cavity resulted in the expression of metalloproteinase protease-9, which has been implicated in arthritis. In support of the latter finding, experimental arthritis was markedly reduced in mMCP-5-null mice relative to wild-type mice in two disease models.
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Affiliation(s)
- Richard L Stevens
- From the Department of Infectious Diseases, Immunology, and Sexual Health, St. George Hospital, and the St. George and Sutherland Clinical School, Faculty of Medicine, University of New South Wales, Sydney, New South Wales 2217, Australia, .,the Faculty of Health and Medicine, School of Biomedical Sciences and Pharmacy, University of Newcastle, Newcastle, New South Wales 2308, Australia
| | - H Patrick McNeil
- the Faculty of Medicine and Health Sciences, Macquarie University, New South Wales 2109, Australia
| | - Lislaine A Wensing
- From the Department of Infectious Diseases, Immunology, and Sexual Health, St. George Hospital, and the St. George and Sutherland Clinical School, Faculty of Medicine, University of New South Wales, Sydney, New South Wales 2217, Australia.,the Department of Immunology, Biomedical Sciences Institute, University of Sao Paulo, Sao Paulo 05508900, Brazil
| | - Kichul Shin
- the Division of Rheumatology, Seoul Metropolitan Government, Seoul National University (SMG-SNU), Boramae Medical Center, Seoul 07061, Korea
| | - G William Wong
- the Department of Physiology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, and
| | - Philip M Hansbro
- the Centre for Asthma & Respiratory Disease, University of Newcastle and Hunter Medical Research Institute, Newcastle, New South Wales 2308, Australia
| | - Steven A Krilis
- From the Department of Infectious Diseases, Immunology, and Sexual Health, St. George Hospital, and the St. George and Sutherland Clinical School, Faculty of Medicine, University of New South Wales, Sydney, New South Wales 2217, Australia.,the Faculty of Health and Medicine, School of Biomedical Sciences and Pharmacy, University of Newcastle, Newcastle, New South Wales 2308, Australia
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14
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Fusco M, Skaper SD, Coaccioli S, Varrassi G, Paladini A. Degenerative Joint Diseases and Neuroinflammation. Pain Pract 2017; 17:522-532. [DOI: 10.1111/papr.12551] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Revised: 12/17/2016] [Accepted: 12/17/2016] [Indexed: 12/14/2022]
Affiliation(s)
- Mariella Fusco
- Scientific Information and Documentation Center; Epitech Group; Padua Italy
| | - Stephen D. Skaper
- Department of Pharmaceutical and Pharmacological Sciences; University of Padua; Padua Italy
| | - Stefano Coaccioli
- Department of Internal Medicine and Rheumatology; Santa Maria Hospital; University of Perugia; Terni Italy
| | - Giustino Varrassi
- Department of Anesthesiology and Pain Medicine; School of Dentistry; LUdeS University; La Valletta Malta
- Paolo Procacci Foundation and European League Against Pain; Rome Italy
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15
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Association between rheumatoid arthritis and systemic mastocytosis: a case report and literature review. Clin Rheumatol 2016; 35:2619-23. [DOI: 10.1007/s10067-016-3368-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Accepted: 07/24/2016] [Indexed: 10/21/2022]
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16
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Marino S, Staines KA, Brown G, Howard-Jones RA, Adamczyk M. Models of ex vivo explant cultures: applications in bone research. BONEKEY REPORTS 2016; 5:818. [PMID: 27408711 PMCID: PMC4926536 DOI: 10.1038/bonekey.2016.49] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Accepted: 05/04/2016] [Indexed: 01/09/2023]
Abstract
Ex vivo explant culture models are powerful tools in bone research. They allow investigation of bone and cartilage responses to specific stimuli in a controlled manner that closely mimics the in vivo processes. Because of limitations in obtaining healthy human bone samples the explant growth of animal tissue serves as a platform to study the complex physico-chemical properties of the bone. Moreover, these models enable preserving important cell-cell and cell-matrix interactions in order to better understand the behaviour of cells in their natural three-dimensional environment. Thus, the use of bone ex vivo explant cultures can frequently be of more physiological relevance than the use of two-dimensional primary cells grown in vitro. Here, we describe isolation and ex vivo growth of different animal bone explant models including metatarsals, femoral heads, calvaria, mandibular slices and trabecular cores. We also describe how these explants are utilised to study bone development, cartilage and bone metabolism, cancer-induced bone diseases, stem cell-driven bone repair and mechanoadaptation. These techniques can be directly used to understand mechanisms linked with bone physiology or bone-associated diseases.
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Affiliation(s)
- Silvia Marino
- Academic Unit of Bone Biology, Department of Oncology and Metabolism, Mellanby Centre for Bone Research, Medical School, The University of Sheffield, Sheffield, UK
| | | | - Genevieve Brown
- Department of Biomedical Engineering, Columbia University, New York, USA
| | - Rachel Anne Howard-Jones
- Oral and Biomedical Sciences, College of Biomedical and Life Sciences, Cardiff University, Cardiff, UK
| | - Magdalena Adamczyk
- Academic Unit of Bone Biology, Department of Oncology and Metabolism, Mellanby Centre for Bone Research, Medical School, The University of Sheffield, Sheffield, UK
- Oral and Biomedical Sciences, College of Biomedical and Life Sciences, Cardiff University, Cardiff, UK
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17
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Suurmond J, van der Velden D, Kuiper J, Bot I, Toes RE. Mast cells in rheumatic disease. Eur J Pharmacol 2016; 778:116-24. [DOI: 10.1016/j.ejphar.2015.03.085] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Revised: 03/13/2015] [Accepted: 03/25/2015] [Indexed: 12/18/2022]
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18
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Vangansewinkel T, Geurts N, Quanten K, Nelissen S, Lemmens S, Geboes L, Dooley D, Vidal PM, Pejler G, Hendrix S. Mast cells promote scar remodeling and functional recovery after spinal cord injury via mouse mast cell protease 6. FASEB J 2016; 30:2040-57. [PMID: 26917739 DOI: 10.1096/fj.201500114r] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Accepted: 01/28/2016] [Indexed: 12/12/2022]
Abstract
An important barrier for axon regeneration and recovery after traumatic spinal cord injury (SCI) is attributed to the scar that is formed at the lesion site. Here, we investigated the effect of mouse mast cell protease (mMCP) 6, a mast cell (MC)-specific tryptase, on scarring and functional recovery after a spinal cord hemisection injury. Functional recovery was significantly impaired in both MC-deficient and mMCP6-knockout (mMCP6(-/-)) mice after SCI compared with wild-type control mice. This decrease in locomotor performance was associated with an increased lesion size and excessive scarring at the injury site. Axon growth-inhibitory chondroitin sulfate proteoglycans and the extracellular matrix components fibronectin, laminin, and collagen IV were significantly up-regulated in MC-deficient and mMCP6(-/-) mice, with an increase in scar volume between 23 and 32%. A degradation assay revealed that mMCP6 directly cleaves fibronectin and collagen IV in vitro In addition, gene expression levels of the scar components fibronectin, aggrecan, and collagen IV were increased up to 6.8-fold in mMCP6(-/-) mice in the subacute phase after injury. These data indicate that endogenous mMCP6 has scar-suppressing properties after SCI via indirect cleavage of axon growth-inhibitory scar components and alteration of the gene expression profile of these factors.-Vangansewinkel, T., Geurts, N., Quanten, K., Nelissen, S., Lemmens, S., Geboes, L., Dooley, D., Vidal, P. M., Pejler, G., Hendrix, S. Mast cells promote scar remodeling and functional recovery after spinal cord injury via mouse mast cell protease 6.
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Affiliation(s)
- Tim Vangansewinkel
- Department of Morphology, Biomedical Research Institute, Hasselt University, Diepenbeek, Belgium
| | - Nathalie Geurts
- Department of Morphology, Biomedical Research Institute, Hasselt University, Diepenbeek, Belgium
| | - Kirsten Quanten
- Department of Morphology, Biomedical Research Institute, Hasselt University, Diepenbeek, Belgium
| | - Sofie Nelissen
- Department of Morphology, Biomedical Research Institute, Hasselt University, Diepenbeek, Belgium
| | - Stefanie Lemmens
- Department of Morphology, Biomedical Research Institute, Hasselt University, Diepenbeek, Belgium
| | - Lies Geboes
- Department of Morphology, Biomedical Research Institute, Hasselt University, Diepenbeek, Belgium
| | - Dearbhaile Dooley
- Department of Morphology, Biomedical Research Institute, Hasselt University, Diepenbeek, Belgium
| | - Pia M Vidal
- Department of Morphology, Biomedical Research Institute, Hasselt University, Diepenbeek, Belgium
| | - Gunnar Pejler
- Department of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, Uppsala, Sweden; and Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden
| | - Sven Hendrix
- Department of Morphology, Biomedical Research Institute, Hasselt University, Diepenbeek, Belgium;
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19
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Cho C, Nguyen A, Bryant KJ, O'Neill SG, McNeil HP. Prostaglandin D2 metabolites as a biomarker of in vivo mast cell activation in systemic mastocytosis and rheumatoid arthritis. IMMUNITY INFLAMMATION AND DISEASE 2015; 4:64-9. [PMID: 27042302 PMCID: PMC4768064 DOI: 10.1002/iid3.94] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 11/10/2015] [Accepted: 11/11/2015] [Indexed: 12/22/2022]
Abstract
Mast cells (MCs) participate in diseases such as systemic mastocytosis (SM) and allergic conditions. Less well understood is the role of MCs in non‐allergic inflammatory disorders like rheumatoid arthritis (RA). Studying definitive roles for MCs in human diseases has been hampered by the lack of a well‐accepted biomarker for monitoring in vivo MC activation. This study aimed to investigate the utility of urinary tetranor PGDM (T‐PGDM) as a biomarker of in vivo MC activation in patients with SM, and apply this biomarker to assess MC involvement in relation to RA disease activity. A prospective, cross‐sectional cohort study was conducted to measure a major urinary metabolite of prostaglandin D2, T‐PGDM. Urine samples were collected from patients with RA (n = 60), SM (n = 17) and healthy normal controls (n = 16) and T‐PGDM excretion was determined by enzyme immunoassay as nanograms per milligram of urinary creatinine (ng/mg Cr). Mean urinary T‐PGDM excretion was significantly higher (p < 0.01) in patients with SM compared to controls (37.2 vs. 11.5 ng/mg Cr) with 65% of SM patients showing elevated levels. One third of patients with RA had elevated T‐PGDM excretion, and the mean level in the RA group (20.0 ng/mg Cr) was significantly higher than controls (p < 0.01). Medications inhibiting cyclooxygenase reduced T‐PGDM excretion. Urinary T‐PGDM excretion appears promising as a biomarker of in vivo MC activity and elevated levels in 33% of patients with RA provides evidence of MC activation in this disease.
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Affiliation(s)
- Catherine Cho
- Faculty of Medicine University of New South Wales Sydney 2052 Australia
| | - Anna Nguyen
- Faculty of Medicine University of New South Wales Sydney 2052 Australia
| | | | - Sean G O'Neill
- Faculty of Medicine University of New South Wales Sydney 2052 Australia
| | - H Patrick McNeil
- Faculty of Medicine and Health Sciences Macquarie University Sydney 2109 Australia
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20
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Elias-Jones CJ, Farrow L, Reilly JH, Kerr S, Meek RMD, Kelly MP, Campton JL, Millar NL. Inflammation and Neovascularization in Hip Impingement: Not Just Wear and Tear. Am J Sports Med 2015; 43:1875-81. [PMID: 26078451 DOI: 10.1177/0363546515588176] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Femoroacetabular impingement (FAI) is a significant cause of osteoarthritis (OA) in young active patients, but the pathophysiology remains unclear. Increasingly, mechanistic studies point toward an inflammatory component in OA. PURPOSE This study aimed to characterize inflammatory cell subtypes and neovascularization in FAI by exploring the phenotype and quantification of inflammatory cells and neovascularization in FAI versus OA samples. STUDY DESIGN Descriptive laboratory study. METHODS Ten samples of the labrum were obtained from patients with FAI (confirmed diagnosis) during open osteochondroplasty or hip arthroscopic surgery. Control samples of the labrum were collected from 10 patients with OA who were undergoing total hip arthroplasty. Labral biopsy specimens were evaluated immunohistochemically by quantifying the presence of macrophages (CD68, CD206, interleukin-13 [IL-13]), T cells (CD3), mast cells (mast cell tryptase), and vascular endothelium (CD34, vascular endothelial growth factor). RESULTS Labral biopsy specimens obtained from patients with FAI exhibited significantly greater macrophage, mast cell, and vascular endothelium expression compared with control OA labral samples (P < .05). The most significant difference was noted in macrophage (P < .01) and mast cell (P < .05) expression. Further subtyping of macrophages in FAI using the CD206 tissue marker and IL-13 revealed an M2 phenotype, suggesting that these cells are involved in a regenerate versus degenerate process. There was a modest but significant correlation between mast cells and CD34 expression (r = 0.4, P < .01) in FAI samples. CONCLUSION This study provides evidence for an inflammatory cell infiltrate in FAI along with significant neovascularization. In particular, the significant infiltration of mast cells and macrophages was demonstrated, suggesting a role for innate immune pathways in the events that mediate hip impingement. CLINICAL RELEVANCE Further mechanistic studies to evaluate the net contribution and hence therapeutic utility of these cellular lineages and their downstream processes may reveal novel therapeutic approaches to the management of early hip impingement.
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Affiliation(s)
- Cameron J Elias-Jones
- Institute of Infection, Immunity and Inflammation, College of Medicine, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK Department of Orthopaedic Surgery, Southern General Hospital, Glasgow, UK
| | - Luke Farrow
- Institute of Infection, Immunity and Inflammation, College of Medicine, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - James H Reilly
- Institute of Infection, Immunity and Inflammation, College of Medicine, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Shauna Kerr
- Institute of Infection, Immunity and Inflammation, College of Medicine, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - R M Dominic Meek
- Department of Orthopaedic Surgery, Southern General Hospital, Glasgow, UK
| | - Michael P Kelly
- Department of Orthopaedic Surgery, Western Infirmary, Glasgow, UK
| | - J Luke Campton
- Department of Orthopaedic Surgery, Western Infirmary, Glasgow, UK
| | - Neal L Millar
- Institute of Infection, Immunity and Inflammation, College of Medicine, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK Department of Orthopaedic Surgery, Western Infirmary, Glasgow, UK
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21
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Abstract
Mast cells (MCs) are tissue-resident immune cells that carry out protective roles against pathogens. In disease states, such as inflammatory bowel disease, these granulocytes release a diverse array of mediators that contribute to inflammatory processes. They also participate in wound repair and tissue remodeling. In this review, the composition of MCs and how their phenotypes can be altered during inflammation of the gastrointestinal tract is detailed. Animal and human clinical studies that have implicated the participation of MCs in inflammatory bowel disease are reviewed, including the contribution of the cell's mediators to clinical symptoms, stress-triggered inflammation, and fistula and strictures. Studies that have focused on negating the proinflammatory roles of MCs and their mediators in animal models suggest new targets for therapies for patients with inflammatory bowel disease.
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22
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23
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Bertolini M, Zilio F, Rossi A, Kleditzsch P, Emelianov VE, Gilhar A, Keren A, Meyer KC, Wang E, Funk W, McElwee K, Paus R. Abnormal interactions between perifollicular mast cells and CD8+ T-cells may contribute to the pathogenesis of alopecia areata. PLoS One 2014; 9:e94260. [PMID: 24832234 PMCID: PMC4022513 DOI: 10.1371/journal.pone.0094260] [Citation(s) in RCA: 92] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2013] [Accepted: 03/12/2014] [Indexed: 02/08/2023] Open
Abstract
Alopecia areata (AA) is a CD8+ T-cell dependent autoimmune disease of the hair follicle (HF) in which the collapse of HF immune privilege (IP) plays a key role. Mast cells (MCs) are crucial immunomodulatory cells implicated in the regulation of T cell-dependent immunity, IP, and hair growth. Therefore, we explored the role of MCs in AA pathogenesis, focusing on MC interactions with CD8+ T-cells in vivo, in both human and mouse skin with AA lesions. Quantitative (immuno-)histomorphometry revealed that the number, degranulation and proliferation of perifollicular MCs are significantly increased in human AA lesions compared to healthy or non-lesional control skin, most prominently in subacute AA. In AA patients, perifollicular MCs showed decreased TGFβ1 and IL-10 but increased tryptase immunoreactivity, suggesting that MCs switch from an immuno-inhibitory to a pro-inflammatory phenotype. This concept was supported by a decreased number of IL-10+ and PD-L1+ MCs, while OX40L+, CD30L+, 4–1BBL+ or ICAM-1+ MCs were increased in AA. Lesional AA-HFs also displayed significantly more peri- and intrafollicular- CD8+ T-cells as well as more physical MC/CD8+ T-cell contacts than healthy or non-lesional human control skin. During the interaction with CD8+ T-cells, AA MCs prominently expressed MHC class I and OX40L, and sometimes 4–1BBL or ICAM-1, suggesting that MC may present autoantigens to CD8+ T-cells and/or co-stimulatory signals. Abnormal MC numbers, activities, and interactions with CD8+ T-cells were also seen in the grafted C3H/HeJ mouse model of AA and in a new humanized mouse model for AA. These phenomenological in vivo data suggest the novel AA pathobiology concept that perifollicular MCs are skewed towards pro-inflammatory activities that facilitate cross-talk with CD8+ T-cells in this disease, thus contributing to triggering HF-IP collapse in AA. If confirmed, MCs and their CD8+ T-cell interactions could become a promising new therapeutic target in the future management of AA.
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Affiliation(s)
- Marta Bertolini
- Department of Dermatology, University of Lübeck, Lübeck, Germany
- Department of Dermatology, University of Münster, Münster, Germany
| | - Federica Zilio
- Department of Dermatology, University of Lübeck, Lübeck, Germany
| | - Alfredo Rossi
- Department of Internal Medicine and Medical Specialties, University “La Sapienza”, Rome, Italy
| | - Patrick Kleditzsch
- Department of Gynaecology and Obstetrics, University of Rostock, Rostock, Germany
| | - Vladimir E. Emelianov
- Department of Pharmacology, Clinical Pharmacology and Biochemistry, Chuvash State University Medical School, Cheboksary, Russia
| | - Amos Gilhar
- Laboratory for Skin Research, Rappaport Faculty of Medicine, Technion–Israel Institute of Technology, Haifa, Israel
- Flieman Medical Center, Haifa, Israel
| | - Aviad Keren
- Laboratory for Skin Research, Rappaport Faculty of Medicine, Technion–Israel Institute of Technology, Haifa, Israel
| | - Katja C. Meyer
- Department of Dermatology, University of Lübeck, Lübeck, Germany
| | - Eddy Wang
- Department of Dermatology and Skin Science, University of British Columbia, Vancouver, British Columbia, Canada
| | | | - Kevin McElwee
- Department of Dermatology and Skin Science, University of British Columbia, Vancouver, British Columbia, Canada
| | - Ralf Paus
- Department of Dermatology, University of Lübeck, Lübeck, Germany
- Department of Dermatology, University of Münster, Münster, Germany
- Institute for Inflammation and Repair, University of Manchester, Manchester, United Kingdom
- * E-mail:
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24
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Hansbro PM, Hamilton MJ, Fricker M, Gellatly SL, Jarnicki AG, Zheng D, Frei SM, Wong GW, Hamadi S, Zhou S, Foster PS, Krilis SA, Stevens RL. Importance of mast cell Prss31/transmembrane tryptase/tryptase-γ in lung function and experimental chronic obstructive pulmonary disease and colitis. J Biol Chem 2014; 289:18214-27. [PMID: 24821729 DOI: 10.1074/jbc.m114.548594] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Protease serine member S31 (Prss31)/transmembrane tryptase/tryptase-γ is a mast cell (MC)-restricted protease of unknown function that is retained on the outer leaflet of the plasma membrane when MCs are activated. We determined the nucleotide sequences of the Prss31 gene in different mouse strains and then used a Cre/loxP homologous recombination approach to create a novel Prss31(-/-) C57BL/6 mouse line. The resulting animals exhibited no obvious developmental abnormality, contained normal numbers of granulated MCs in their tissues, and did not compensate for their loss of the membrane tryptase by increasing their expression of other granule proteases. When Prss31-null MCs were activated with a calcium ionophore or by their high affinity IgE receptors, they degranulated in a pattern similar to that of WT MCs. Prss31-null mice had increased baseline airway reactivity to methacholine but markedly reduced experimental chronic obstructive pulmonary disease and colitis, thereby indicating both beneficial and adverse functional roles for the tryptase. In a cigarette smoke-induced model of chronic obstructive pulmonary disease, WT mice had more pulmonary macrophages, higher histopathology scores, and more fibrosis in their small airways than similarly treated Prss31-null mice. In a dextran sodium sulfate-induced acute colitis model, WT mice lost more weight, had higher histopathology scores, and contained more Cxcl-2 and IL-6 mRNA in their colons than similarly treated Prss31-null mice. The accumulated data raise the possibility that inhibitors of this membrane tryptase may provide additional therapeutic benefit in the treatment of humans with these MC-dependent inflammatory diseases.
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Affiliation(s)
- Philip M Hansbro
- From the Centre for Asthma and Respiratory Disease, University of Newcastle and Hunter Medical Research Institute, Newcastle, New South Wales 2308, Australia
| | - Matthew J Hamilton
- the Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts 02115
| | - Michael Fricker
- From the Centre for Asthma and Respiratory Disease, University of Newcastle and Hunter Medical Research Institute, Newcastle, New South Wales 2308, Australia
| | - Shaan L Gellatly
- From the Centre for Asthma and Respiratory Disease, University of Newcastle and Hunter Medical Research Institute, Newcastle, New South Wales 2308, Australia
| | - Andrew G Jarnicki
- From the Centre for Asthma and Respiratory Disease, University of Newcastle and Hunter Medical Research Institute, Newcastle, New South Wales 2308, Australia
| | - Dominick Zheng
- the Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts 02115
| | - Sandra M Frei
- the Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts 02115
| | - G William Wong
- the Department of Physiology, The Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, and
| | - Sahar Hamadi
- the Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts 02115
| | - Saijun Zhou
- the Department of Infectious Disease, Immunology, and Sexual Health, St. George Hospital and the University of New South Wales, Kogarah, New South Wales 2217, Australia
| | - Paul S Foster
- From the Centre for Asthma and Respiratory Disease, University of Newcastle and Hunter Medical Research Institute, Newcastle, New South Wales 2308, Australia
| | - Steven A Krilis
- the Department of Infectious Disease, Immunology, and Sexual Health, St. George Hospital and the University of New South Wales, Kogarah, New South Wales 2217, Australia
| | - Richard L Stevens
- the Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts 02115,
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25
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Douaiher J, Succar J, Lancerotto L, Gurish MF, Orgill DP, Hamilton MJ, Krilis SA, Stevens RL. Development of mast cells and importance of their tryptase and chymase serine proteases in inflammation and wound healing. Adv Immunol 2014; 122:211-52. [PMID: 24507159 DOI: 10.1016/b978-0-12-800267-4.00006-7] [Citation(s) in RCA: 105] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Mast cells (MCs) are active participants in blood coagulation and innate and acquired immunity. This review focuses on the development of mouse and human MCs, as well as the involvement of their granule serine proteases in inflammation and the connective tissue remodeling that occurs during the different phases of the healing process of wounded skin and other organs. The accumulated data suggest that MCs, their tryptases, and their chymases play important roles in tissue repair. While MCs initially promote healing, they can be detrimental if they are chronically stimulated or if too many MCs become activated at the same time. The possibility that MCs and their granule serine proteases contribute to the formation of keloid and hypertrophic scars makes them potential targets for therapeutic intervention in the repair of damaged skin.
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Affiliation(s)
- Jeffrey Douaiher
- Division of Plastic Surgery, Department of Surgery, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Julien Succar
- Division of General Surgery, Department of Surgery, University of Kentucky, Lexington, Kentucky, USA
| | - Luca Lancerotto
- Division of Plastic Surgery, Department of Surgery, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Michael F Gurish
- Division of Rheumatology, Immunology, and Allergy, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Dennis P Orgill
- Division of Plastic Surgery, Department of Surgery, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Matthew J Hamilton
- Division of Gastroenterology, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Steven A Krilis
- Department of Infectious Disease, Immunology, and Sexual Health, The St. George Hospital, University of New South Wales, Kogarah, New South Wales, Australia
| | - Richard L Stevens
- Division of Rheumatology, Immunology, and Allergy, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA.
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