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Werbenko E, de Gorter DJJ, Kleimann S, Beckmann D, Waltereit-Kracke V, Reinhardt J, Geers F, Paruzel P, Hansen U, Pap T, Stradal TEB, Dankbar B. Hem1 is essential for ruffled border formation in osteoclasts and efficient bone resorption. Sci Rep 2024; 14:8109. [PMID: 38582757 PMCID: PMC10998871 DOI: 10.1038/s41598-024-58110-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 03/25/2024] [Indexed: 04/08/2024] Open
Abstract
Bone resorption is highly dependent on the dynamic rearrangement of the osteoclast actin cytoskeleton to allow formation of actin rings and a functional ruffled border. Hem1 is a hematopoietic-specific subunit of the WAVE-complex which regulates actin polymerization and is crucial for lamellipodia formation in hematopoietic cell types. However, its role in osteoclast differentiation and function is still unknown. Here, we show that although the absence of Hem1 promotes osteoclastogenesis, the ability of Hem1-/- osteoclasts to degrade bone was severely impaired. Global as well as osteoclast-specific deletion of Hem1 in vivo revealed increased femoral trabecular bone mass despite elevated numbers of osteoclasts in vivo. We found that the resorption defect derived from the morphological distortion of the actin-rich sealing zone and ruffled border deformation in Hem1-deficient osteoclasts leading to impaired vesicle transport and increased intracellular acidification. Collectively, our data identify Hem1 as a yet unknown key player in bone remodeling by regulating ruffled border formation and consequently the resorptive capacity of osteoclasts.
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Affiliation(s)
- Eugenie Werbenko
- Institute of Musculoskeletal Medicine, University Hospital Muenster, Albert-Schweitzer-Campus 1, Building D3, 48149, Muenster, Germany
| | - David J J de Gorter
- Institute of Musculoskeletal Medicine, University Hospital Muenster, Albert-Schweitzer-Campus 1, Building D3, 48149, Muenster, Germany
| | - Simon Kleimann
- Institute of Musculoskeletal Medicine, University Hospital Muenster, Albert-Schweitzer-Campus 1, Building D3, 48149, Muenster, Germany
| | - Denise Beckmann
- Institute of Musculoskeletal Medicine, University Hospital Muenster, Albert-Schweitzer-Campus 1, Building D3, 48149, Muenster, Germany
| | - Vanessa Waltereit-Kracke
- Institute of Musculoskeletal Medicine, University Hospital Muenster, Albert-Schweitzer-Campus 1, Building D3, 48149, Muenster, Germany
| | - Julia Reinhardt
- Institute of Musculoskeletal Medicine, University Hospital Muenster, Albert-Schweitzer-Campus 1, Building D3, 48149, Muenster, Germany
| | - Fabienne Geers
- Institute of Musculoskeletal Medicine, University Hospital Muenster, Albert-Schweitzer-Campus 1, Building D3, 48149, Muenster, Germany
| | - Peter Paruzel
- Institute of Musculoskeletal Medicine, University Hospital Muenster, Albert-Schweitzer-Campus 1, Building D3, 48149, Muenster, Germany
| | - Uwe Hansen
- Institute of Musculoskeletal Medicine, University Hospital Muenster, Albert-Schweitzer-Campus 1, Building D3, 48149, Muenster, Germany
| | - Thomas Pap
- Institute of Musculoskeletal Medicine, University Hospital Muenster, Albert-Schweitzer-Campus 1, Building D3, 48149, Muenster, Germany
| | - Theresia E B Stradal
- Department of Cell Biology, Helmholtz Centre for Infection Research (HZI), Braunschweig, Germany
| | - Berno Dankbar
- Institute of Musculoskeletal Medicine, University Hospital Muenster, Albert-Schweitzer-Campus 1, Building D3, 48149, Muenster, Germany.
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Beckmann D, Krause A, Hansen U, Kiener HP, Karonitsch T, Blüml S, Kremerskothen J, Pavenstädt H, Pap T, Korb-Pap A. Focal adhesion protein Lasp1 links the Arp2/3 complex to adherens junctions and promotes motility of arthritic fibroblast-like synoviocytes. Ann Rheum Dis 2024:ard-2023-225241. [PMID: 38373844 DOI: 10.1136/ard-2023-225241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 02/02/2024] [Indexed: 02/21/2024]
Affiliation(s)
- Denise Beckmann
- Institute of Musculoskeletal Medicine, University Hospital Muenster, Muenster, Germany
| | - Annika Krause
- Institute of Musculoskeletal Medicine, University Hospital Muenster, Muenster, Germany
| | - Uwe Hansen
- Institute of Musculoskeletal Medicine, University Hospital Muenster, Muenster, Germany
| | - Hans P Kiener
- Division of Rheumatology, Medical University of Vienna, Vienna, Austria
| | - Thomas Karonitsch
- Division of Rheumatology, Medical University of Vienna, Vienna, Austria
| | - Stephan Blüml
- Division of Rheumatology, Medical University of Vienna, Vienna, Austria
| | - Joachim Kremerskothen
- Department of Nephrology and Rheumatology, University Hospital of Muenster, Muenster, Germany
| | - Hermann Pavenstädt
- Department of Nephrology and Rheumatology, University Hospital of Muenster, Muenster, Germany
| | - Thomas Pap
- Institute of Musculoskeletal Medicine, University Hospital Muenster, Muenster, Germany
| | - Adelheid Korb-Pap
- Institute of Musculoskeletal Medicine, University Hospital Muenster, Muenster, Germany
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Schwab A, Pap T, Krenn V, Rüther W, Lohmann C, Bertrand J. Loose Bodies Found in the Human Intra-Articular Space Showed Characteristics Similar to Endochondral Bone Formation. Cartilage 2023:19476035231212608. [PMID: 38041252 DOI: 10.1177/19476035231212608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/03/2023] Open
Abstract
OBJECTIVE Loose bodies are free-floating tissues of cartilage and bone that can cause pain, swelling, the inability to straighten the knee, or intermittent locking of the knee. Loose bodies can arise from degenerative joint disease, flake fractures, osteochondritis dissecans, or chondromatosis. We hypothesized that loose bodies can be classified in stages with tissue characteristics similar to endochondral ossification. DESIGN Loose bodies were harvested from patients undergoing joint replacement. Samples were processed for histology, gene expression analysis, and micro-computed tomography (µCT). Cartilage- and bone-related genes and proteins were selected for immunofluorescence stainings (collagen type I, II, and X, SOX9 [SRY-box transcription factor 9], and MMP13 [matrix metalloproteinase 13]) and gene expression analysis (FN [fibronectin], COL1A1, COL2A1, COL10A1, SOX9, MMP13, and aggrecan [ACAN]). RESULTS Loose bodies were grouped in 4 stages: fibrous, (mineralized) cartilaginous, cartilage and bone, and bone. Hyaline-like cartilage tissue with Benninghoff arcades was present in stages 2 and 3. A transition from cartilaginous to mineralized tissue and bone trabecula was defined by an increase in COL1A1 and COL10A1 (stage 3 vs. 4: p = 0.047) positive area. Stage 4 showed typical trabecular bone tissue. The relative volume of calcified tissue (mineralized cartilage and bone tissue) decreased with stages (stages 1-2 vs. 3: p = 0.002; stage 1-2 vs. 4: p = 0.012). COL2A1 expression and stained area decreased from stages 1-2 to 4 (p = 0.010 and p = 0.004). ACAN expression decreased from stage 1-2 to stage 3 (p = 0.049) and stage 4 (p = 0.002). CONCLUSION Loose bodies show tissue characteristics similar to endochondral ossification. They are probably a relevant substrate for regenerative therapeutic interventions in joint disease.
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Affiliation(s)
- Andrea Schwab
- Department of Orthopaedics, Medical Faculty, Otto-von-Guericke University, Magdeburg, Germany
- Department of Orthopaedics and Sports Medicine, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Thomas Pap
- Institute of Musculoskeletal Medicine, Medical Faculty, Westphalian Wilhelm University, Münster, Germany
| | - Veit Krenn
- MVZ-Zentrum für Histologie, Zytologie und Molekulare Diagnostik GmbH, Trier, Germany
| | - Wolfgang Rüther
- Department of Orthopedics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Christoph Lohmann
- Department of Orthopaedics, Medical Faculty, Otto-von-Guericke University, Magdeburg, Germany
| | - Jessica Bertrand
- Department of Orthopaedics, Medical Faculty, Otto-von-Guericke University, Magdeburg, Germany
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Caxaria S, Kouvatsos N, Eldridge SE, Alvarez‐Fallas M, Thorup A, Cici D, Barawi A, Arshed A, Strachan D, Carletti G, Huang X, Bharde S, Deniz M, Wilson J, Thomas BL, Pitzalis C, Cantatore FP, Sayilekshmy M, Sikandar S, Luyten FP, Pap T, Sherwood JC, Day AJ, Dell'Accio F. Disease modification and symptom relief in osteoarthritis using a mutated GCP-2/CXCL6 chemokine. EMBO Mol Med 2022; 15:e16218. [PMID: 36507558 PMCID: PMC9832835 DOI: 10.15252/emmm.202216218] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 11/09/2022] [Accepted: 11/11/2022] [Indexed: 12/14/2022] Open
Abstract
We showed that the chemokine receptor C-X-C Motif Chemokine Receptor 2 (CXCR2) is essential for cartilage homeostasis. Here, we reveal that the CXCR2 ligand granulocyte chemotactic protein 2 (GCP-2) was expressed, during embryonic development, within the prospective permanent articular cartilage, but not in the epiphyseal cartilage destined to be replaced by bone. GCP-2 expression was retained in adult articular cartilage. GCP-2 loss-of-function inhibited extracellular matrix production. GCP-2 treatment promoted chondrogenesis in vitro and in human cartilage organoids implanted in nude mice in vivo. To exploit the chondrogenic activity of GCP-2, we disrupted its chemotactic activity, by mutagenizing a glycosaminoglycan binding sequence, which we hypothesized to be required for the formation of a GCP-2 haptotactic gradient on endothelia. This mutated version (GCP-2-T) had reduced capacity to induce transendothelial migration in vitro and in vivo, without affecting downstream receptor signaling through AKT, and chondrogenic activity. Intra-articular adenoviral overexpression of GCP-2-T, but not wild-type GCP-2, reduced pain and cartilage loss in instability-induced osteoarthritis in mice. We suggest that GCP-2-T may be used for disease modification in osteoarthritis.
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Affiliation(s)
- Sara Caxaria
- William Harvey Research Institute, Barts and the London School of Medicine and DentistryQueen Mary University of LondonLondonUK
| | - Nikolaos Kouvatsos
- Wellcome Centre for Cell‐Matrix Research, Manchester Academic Health Science CentreUniversity of ManchesterManchesterUK
| | - Suzanne E Eldridge
- William Harvey Research Institute, Barts and the London School of Medicine and DentistryQueen Mary University of LondonLondonUK
| | - Mario Alvarez‐Fallas
- William Harvey Research Institute, Barts and the London School of Medicine and DentistryQueen Mary University of LondonLondonUK
| | - Anne‐Sophie Thorup
- William Harvey Research Institute, Barts and the London School of Medicine and DentistryQueen Mary University of LondonLondonUK
| | - Daniela Cici
- Rheumatology Clinic, Department of Medical and Surgical SciencesUniversity of FoggiaFoggiaItaly
| | - Aida Barawi
- William Harvey Research Institute, Barts and the London School of Medicine and DentistryQueen Mary University of LondonLondonUK
| | - Ammaarah Arshed
- William Harvey Research Institute, Barts and the London School of Medicine and DentistryQueen Mary University of LondonLondonUK
| | - Danielle Strachan
- William Harvey Research Institute, Barts and the London School of Medicine and DentistryQueen Mary University of LondonLondonUK
| | - Giulia Carletti
- William Harvey Research Institute, Barts and the London School of Medicine and DentistryQueen Mary University of LondonLondonUK
| | - Xinying Huang
- William Harvey Research Institute, Barts and the London School of Medicine and DentistryQueen Mary University of LondonLondonUK
| | - Sabah Bharde
- William Harvey Research Institute, Barts and the London School of Medicine and DentistryQueen Mary University of LondonLondonUK
| | - Melody Deniz
- William Harvey Research Institute, Barts and the London School of Medicine and DentistryQueen Mary University of LondonLondonUK
| | - Jacob Wilson
- William Harvey Research Institute, Barts and the London School of Medicine and DentistryQueen Mary University of LondonLondonUK
| | - Bethan L Thomas
- William Harvey Research Institute, Barts and the London School of Medicine and DentistryQueen Mary University of LondonLondonUK
| | - Costantino Pitzalis
- William Harvey Research Institute, Barts and the London School of Medicine and DentistryQueen Mary University of LondonLondonUK
| | | | - Manasi Sayilekshmy
- William Harvey Research Institute, Barts and the London School of Medicine and DentistryQueen Mary University of LondonLondonUK
| | - Shafaq Sikandar
- William Harvey Research Institute, Barts and the London School of Medicine and DentistryQueen Mary University of LondonLondonUK
| | - Frank P Luyten
- Department of Development and Regeneration, Skeletal Biology and Engineering Research CenterKU LeuvenLeuvenBelgium
| | - Thomas Pap
- Institute of Musculoskeletal MedicineUniversity Hospital MünsterMünsterGermany
| | - Joanna C Sherwood
- Institute of Musculoskeletal MedicineUniversity Hospital MünsterMünsterGermany
| | - Anthony J Day
- Wellcome Centre for Cell‐Matrix Research, Manchester Academic Health Science CentreUniversity of ManchesterManchesterUK,Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine & Health, Manchester Academic Health Science CentreUniversity of ManchesterManchesterUK
| | - Francesco Dell'Accio
- William Harvey Research Institute, Barts and the London School of Medicine and DentistryQueen Mary University of LondonLondonUK
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Németh T, Nagy G, Pap T. Synovial fibroblasts as potential drug targets in rheumatoid arthritis, where do we stand and where shall we go? Ann Rheum Dis 2022; 81:annrheumdis-2021-222021. [PMID: 35715191 PMCID: PMC9279838 DOI: 10.1136/annrheumdis-2021-222021] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 05/22/2022] [Indexed: 12/14/2022]
Abstract
Fibroblast-like synoviocytes or synovial fibroblasts (FLS) are important cellular components of the inner layer of the joint capsule, referred to as the synovial membrane. They can be found in both layers of this synovial membrane and contribute to normal joint function by producing extracellular matrix components and lubricants. However, under inflammatory conditions like in rheumatoid arthritis (RA), they may start to proliferate, undergo phenotypical changes and become central elements in the perpetuation of inflammation through their direct and indirect destructive functions. Their importance in autoimmune joint disorders makes them attractive cellular targets, and as mesenchymal-derived cells, their inhibition may be carried out without immunosuppressive consequences. Here, we aim to give an overview of our current understanding of the target potential of these cells in RA.
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Affiliation(s)
- Tamás Németh
- Department of Physiology, Semmelweis University, Budapest, Hungary
- Department of Rheumatology and Clinical Immunology, Semmelweis University, Budapest, Hungary
- Department of Internal Medicine and Oncology, Semmelweis University, Budapest, Hungary
| | - György Nagy
- Department of Rheumatology and Clinical Immunology, Semmelweis University, Budapest, Hungary
- Department of Internal Medicine and Oncology, Semmelweis University, Budapest, Hungary
- Department of Genetics, Cell and Immunobiology, Semmelweis University, Budapest, Hungary
- Heart and Vascular Center, Semmelweis University, Budapest, Hungary
| | - Thomas Pap
- Institute of Musculoskeletal Medicine, Medical Faculty of the Westphalian Wilhelm University, Münster, Germany
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Beckmann D, Krause A, Hansen U, Kiener H, Kremerskothen J, Pavenstädt H, Pap T, Korb-Pap A. POS0446 Arp2/3 AS A Lasp1 INTERACTION PARTNER REGULATES CELL-TO-CELL CONTACT FORMATION OF FIBROBLAST-LIKE SYNOVIOCYTES IN RA. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.4714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BackgroundIn rheumatoid arthritis (RA), fibroblast-like synoviocytes (FLS) undergo a stable transformation resulting in an aggressive phenotype mediating cartilage damage by increased levels of adhesion molecules. In this context, Lasp1 and the Arp2/3 complex are of interest because they modulate actin organization and focal adhesion turnover.ObjectivesIn this study, the effects of Arp2/3 on cadherin-11 mediated cell-to-cell contact formation have been investigated using the arthritic hTNFtg mouse model.MethodsExpression levels of Lasp1 and Arp2/3 protein complex were investigated in synovial tissue of wild type (wt) and hTNFtg hind paws by immunohistochemistry. Primary FLS were analysed, respectively and co-immunoprecipitation experiments were performed. In addition, lasp1-/- mice were interbred with hTNFtg animals and offspring were evaluated for disease progression and joint destruction. To further study the role of Arp2/3 in the function of the cadherin-11 adhesion complex, the effects of an Arp2/3 inhibitor (CK666) on cell-to-cell contact formation in FLS derived from hTNFtg and lasp1-/-hTNFtg mice were investigated by stainings. To assess signaling pathway activation, cells were stimulated with the growth factor PDGF.ResultsUpregulated Lasp1 levels were found in synovial tissue and FLS of hTNFtg compared to wt mice. Assays showed that Arp2/3 is part of the adherens junction (AJ) machinery in FLS although Arp2/3 expression levels were not changed between the genotypes. In vivo evaluation of lasp1-/-hTNFtg mice revealed a milder arthritis score, less cartilage degradation and reduced FLS attachment to articular cartilage compared to hTNFtg mice. In vitro, the loss of Lasp1 led to clear alterations in AJ arrangement indicated by altered β-catenin pattern. As expected, β-catenin expression was mainly located at adhesion sites between adjacent cells. In hTNFtg FLS, these structures were characterized by a zipper-like pattern. In contrast, these structures were disrupted in lasp1-/-hTNFtg FLS. Interestingly, CK666 induced zipper-like structures in hTNFtg FLS comparable to the pattern found in lasp1-/-hTNFtg cells. Furthermore, lasp1-/-hTNFtg FLS showed decreased Src phosphorylation following PDGF stimulation in comparison to hTNFtg FLS.ConclusionLasp1 represents an interesting target involved in RA-caused joint destruction, because its loss results in significantly reduced cartilage destruction and altered FLS contacts mediated by Arp2/3.Disclosure of InterestsNone declared.
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De Giuseppe A, Deichsel A, Rauwolf K, Zeinert I, Lu N, Beckmann D, Hansen U, Kronenberg D, Gullberg D, Eckes B, Pap T, Korb-Pap A. AB0089 INTEGRIN α11β1 DEFICIENCY AFFECTS THE COURSE OF DISEASE IN THE ARTHRITIC hTNFtg MOUSE. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.4463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BackgroundRheumatoid arthritis (RA) is an autoimmune disorder conducted by fibroblast-like synoviocytes (FLS), which acquire a tumor-like phenotype causing irreversible cartilage and bone damage. FLS attache to the extracellular matrix (ECM) invading the joints, a process mediated by integrins. Integrins are transmembrane proteins regulating several cell functions like cell migration, cell proliferation, tissue invasion and cytokine expression – key mechanisms during the pathogenesis of RA. The collagen-binding Integrin α11β1 (α11) is expressed on FLS mediating their adhesion to the ECM and in this study, we analysed its implication in RA.ObjectivesWe examined the pathogenesis of RA in a murine arthritis model (hTNFtg) lacking α11 to analyze its contribution to joint destructions and the disease course.MethodsExpression levels of α11 were analysed by Western Blot and immunofluorescence staining using FLS and synovial tissue of patients with RA and hTNFtg mice in comparison to their respective controls. Crossbreeding hTNFtg with α11 deficient (itga11-/-) mice enabled us to evaluate arthritis progression using clinical parameters like paw swelling and grip strength. Inflammation area and cartilage damage were quantified by histomorphological techniques such as toluidine blue staining of in paraffin-embedded sections from hind paws. Bone erosion was visualized by µCT imaging and quantification of the bone volume in the tarsal bone area.ResultsHigh expression levels of α11 could be detected in hTNFtg and human RA samples in comparison to their controls. The progression of arthritis in itga11-/-hTNFtg was slower and less severe in comparison to hTNFtg mice, visible in a stronger grip strength and reduced paw swelling at the same timepoint. The histomorphology analysis confirmed these results showing higher cartilage area (3.21% vs 5.22%, p < 0.05), less cartilage destruction (51.73% vs 35.65%, p < 0.05) and reduced inflammation (28.28% vs 12.00%) in itga11-/-hTNFtg compared to the hTNFtg mice. Also, the quantification of the tarsal bone area revealed a higher bone volume (77.94% vs 84.92%, p < 0.01) in itga11-/-hTNFtg.ConclusionThis study showed the important role of α11 in the progression of joint destruction as it is highly expressed in hTNFtg mice and in human synovial tissue of patients with RA. Its absence results in less severe arthritis progression and joint destruction, therefore a possible and interesting target for RA treatment.Disclosure of InterestsNone declared
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Reinhardt J, Dankbar B, Geers F, Paruzel P, Dienstbier M, Werbenko E, Pap T, Wehmeyer C. Pharmacological inhibition of myostatin effectively ameliorates bone lesions and osteoclast formation in a 4T1 mouse mammary tumor bone metastasis model. Bone Rep 2022. [DOI: 10.1016/j.bonr.2022.101377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Waltereit-Kracke V, Wehmeyer C, Beckmann D, Werbenko E, Reinhardt J, Geers F, Dienstbier M, Fennen M, Intemann J, Paruzel P, Korb-Pap A, Pap T, Dankbar B. Deletion of activin A in mesenchymal but not myeloid cells ameliorates disease severity in experimental arthritis. Ann Rheum Dis 2022; 81:1106-1118. [PMID: 35418478 PMCID: PMC9279851 DOI: 10.1136/annrheumdis-2021-221409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Accepted: 04/06/2022] [Indexed: 12/03/2022]
Abstract
Objective The aim of this study was to assess the extent and the mechanism by which activin A contributes to progressive joint destruction in experimental arthritis and which activin A-expressing cell type is important for disease progression. Methods Levels of activin A in synovial tissues were evaluated by immunohistochemistry, cell-specific expression and secretion by PCR and ELISA, respectively. Osteoclast (OC) formation was assessed by tartrat-resistant acid phosphatase (TRAP) staining and activity by resorption assay. Quantitative assessment of joint inflammation and bone destruction was performed by histological and micro-CT analysis. Immunoblotting was applied for evaluation of signalling pathways. Results In this study, we demonstrate that fibroblast-like synoviocytes (FLS) are the main producers of activin A in arthritic joints. Most significantly, we show for the first time that deficiency of activin A in arthritic FLS (ActβAd/d ColVI-Cre) but not in myeloid cells (ActβAd/d LysM-Cre) reduces OC development in vitro, indicating that activin A promotes osteoclastogenesis in a paracrine manner. Mechanistically, activin A enhanced OC formation and activity by promoting the interaction of activated Smad2 with NFATc1, the key transcription factor of osteoclastogenesis. Consistently, ActβAd/d LysM-Cre hTNFtg mice did not show reduced disease severity, whereas deficiency of activin A in ColVI-Cre-expressing cells such as FLS highly diminished joint destruction reflected by less inflammation and less bone destruction. Conclusions The results highly suggest that FLS-derived activin A plays a crucial paracrine role in inflammatory joint destruction and may be a promising target for treating inflammatory disorders associated with OC formation and bone destruction like rheumatoid arthritis.
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Affiliation(s)
- Vanessa Waltereit-Kracke
- Institute of Musculoskeletal Medicine, University Hospital Muenster, Muenster, Nordrhein-Westfalen, Germany
| | - Corinna Wehmeyer
- Institute of Musculoskeletal Medicine, University Hospital Muenster, Muenster, Nordrhein-Westfalen, Germany
| | - Denise Beckmann
- Institute of Musculoskeletal Medicine, University Hospital Muenster, Muenster, Nordrhein-Westfalen, Germany
| | - Eugenie Werbenko
- Institute of Musculoskeletal Medicine, University Hospital Muenster, Muenster, Nordrhein-Westfalen, Germany
| | - Julia Reinhardt
- Institute of Musculoskeletal Medicine, University Hospital Muenster, Muenster, Nordrhein-Westfalen, Germany
| | - Fabienne Geers
- Institute of Musculoskeletal Medicine, University Hospital Muenster, Muenster, Nordrhein-Westfalen, Germany
| | - Mike Dienstbier
- Institute of Musculoskeletal Medicine, University Hospital Muenster, Muenster, Nordrhein-Westfalen, Germany
| | - Michelle Fennen
- Institute of Musculoskeletal Medicine, University Hospital Muenster, Muenster, Nordrhein-Westfalen, Germany
| | - Johanna Intemann
- Institute of Musculoskeletal Medicine, University Hospital Muenster, Muenster, Nordrhein-Westfalen, Germany
| | - Peter Paruzel
- Institute of Musculoskeletal Medicine, University Hospital Muenster, Muenster, Nordrhein-Westfalen, Germany
| | - Adelheid Korb-Pap
- Institute of Musculoskeletal Medicine, University Hospital Muenster, Muenster, Nordrhein-Westfalen, Germany
| | - Thomas Pap
- Institute of Musculoskeletal Medicine, University Hospital Muenster, Muenster, Nordrhein-Westfalen, Germany
| | - Berno Dankbar
- Institute of Musculoskeletal Medicine, University Hospital Muenster, Muenster, Nordrhein-Westfalen, Germany
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Sanchez C, Lambert C, Dubuc JE, Bertrand J, Pap T, Henrotin Y. Syndecan-4 Is Increased in Osteoarthritic Knee, but Not Hip or Shoulder, Articular Hypertrophic Chondrocytes. Cartilage 2021; 13:862S-871S. [PMID: 31455087 PMCID: PMC8804772 DOI: 10.1177/1947603519870855] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVE Syndecan-4 plays a critical role in cartilage degradation during osteoarthritis (OA). The aim of this study was to investigate the expression and localization of syndecan-4 in different OA joint tissues. DESIGN Syndecan-4 mRNA levels were quantified by reverse transcription-polymerase chain reaction in human OA primary cells. Syndecan-4 was localized by immunohistochemistry in knee, hip, or shoulder OA bone/cartilage biopsies. Syndecan-4 was quantified by immunoassay in chondrocytes culture supernatant and cell fraction. RESULTS Using immunochemistry, syndecan-4 was observed in chondrocytes clusters in the superficial zone of OA knee, but not in OA hip or shoulder cartilage. No significant difference was detected in syndecan-4 expression level in sclerotic compared with nonsclerotic osteoblasts or in inflamed synoviocytes compared to normal/reactive ones. Differentiated hypertrophic chondrocytes from knee, but not from hip cartilage, expressed more syndecan-4 than nonhypertrophic cells. Using an immunoassay for the extracellular domain of syndecan-4, we found 68% of the syndecan-4 in the culture supernatant of OA chondrocytes culture, suggesting that a large majority of the syndecan-4 is shed and released in the extracellular medium. The shedding rate was not affected by hypertrophic differentiation state of the chondrocytes or their joint origin. CONCLUSIONS Even if chondrocytes clusters are seen in OA knee, hip and shoulder cartilage and hypertrophic differentiation appears in knee and hip OA articular chondrocytes, syndecan-4 synthesis only increased in knee. These findings suggest the presence of biochemical difference between articular cartilage according to their location and that syndecan-4 could be a biochemical marker specific for knee OA.
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Affiliation(s)
- Christelle Sanchez
- Bone and Cartilage Research Unit,
Arthropôle Liège, University of Liège, Liège, Belgium,Christelle Sanchez, Institute of Pathology
+5, Bone and Cartilage Research Unit, CHU-Sart-Tilman, Liège, 4000, Belgium.
| | - Cécile Lambert
- Bone and Cartilage Research Unit,
Arthropôle Liège, University of Liège, Liège, Belgium
| | - Jean-Emile Dubuc
- Orthopedic Department, Cliniques
Universitaires Saint-Luc, Brussels, Belgium
| | - Jessica Bertrand
- Experimental Orthopedics, University
Hospital Magdeburg, Magdeburg, Germany
| | - Thomas Pap
- Institute of Experimental
Musculoskeletal Medicine, University Hospital Munster, Munster, Germany
| | - Yves Henrotin
- Bone and Cartilage Research Unit,
Arthropôle Liège, University of Liège, Liège, Belgium
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Fennen M, Weinhage T, Kracke V, Intemann J, Varga G, Wehmeyer C, Foell D, Korb-Pap A, Pap T, Dankbar B. A myostatin-CCL20-CCR6 axis regulates Th17 cell recruitment to inflamed joints in experimental arthritis. Sci Rep 2021; 11:14145. [PMID: 34239010 PMCID: PMC8266846 DOI: 10.1038/s41598-021-93599-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 06/23/2021] [Indexed: 01/02/2023] Open
Abstract
The interactions of fibroblast-like synoviocyte (FLS)-derived pro-inflammatory cytokines/chemokines and immune cells support the recruitment and activation of inflammatory cells in RA. Here, we show for the first time that the classical myokine myostatin (GDF-8) is involved in the recruitment of Th17 cells to inflammatory sites thereby regulating joint inflammation in a mouse model of TNFalpha-mediated chronic arthritis. Mechanistically, myostatin-deficiency leads to decreased levels of the chemokine CCL20 which is associated with less infiltration of Th17 cells into the inflamed joints. In vitro, myostatin alone or in combination with IL-17A enhances the secretion of CCL20 by FLS whereas myostatin-deficiency reduces CCL20 secretion, associated with an altered transmigration of Th17 cells. Thus, the communication between activated FLS and Th17 cells through myostatin and IL-17A may likely contribute to a vicious cycle of inflammation, accounting for the persistence of joint inflammation in chronic arthritis. Blockade of the CCL20–CCR6 axis by inhibition of myostatin may, therefore, be a promising treatment option for chronic inflammatory diseases such as arthritis.
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Affiliation(s)
- Michelle Fennen
- Institute of Musculoskeletal Medicine, University Hospital Muenster, Albert-Schweitzer-Campus 1, Bldg. D3, 48149, Muenster, Germany
| | - Toni Weinhage
- Department of Pediatric Rheumatology and Immunology, University Hospital Muenster, Muenster, Germany
| | - Vanessa Kracke
- Institute of Musculoskeletal Medicine, University Hospital Muenster, Albert-Schweitzer-Campus 1, Bldg. D3, 48149, Muenster, Germany
| | - Johanna Intemann
- Institute of Musculoskeletal Medicine, University Hospital Muenster, Albert-Schweitzer-Campus 1, Bldg. D3, 48149, Muenster, Germany
| | - Georg Varga
- Department of Pediatric Rheumatology and Immunology, University Hospital Muenster, Muenster, Germany
| | - Corinna Wehmeyer
- Institute of Musculoskeletal Medicine, University Hospital Muenster, Albert-Schweitzer-Campus 1, Bldg. D3, 48149, Muenster, Germany
| | - Dirk Foell
- Department of Pediatric Rheumatology and Immunology, University Hospital Muenster, Muenster, Germany
| | - Adelheid Korb-Pap
- Institute of Musculoskeletal Medicine, University Hospital Muenster, Albert-Schweitzer-Campus 1, Bldg. D3, 48149, Muenster, Germany
| | - Thomas Pap
- Institute of Musculoskeletal Medicine, University Hospital Muenster, Albert-Schweitzer-Campus 1, Bldg. D3, 48149, Muenster, Germany
| | - Berno Dankbar
- Institute of Musculoskeletal Medicine, University Hospital Muenster, Albert-Schweitzer-Campus 1, Bldg. D3, 48149, Muenster, Germany.
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Park JK, Shon S, Yoo HJ, Suh DH, Bae D, Shin J, Jun JH, Ha N, Song H, Choi YI, Pap T, Song YW. Inhibition of histone deacetylase 6 suppresses inflammatory responses and invasiveness of fibroblast-like-synoviocytes in inflammatory arthritis. Arthritis Res Ther 2021; 23:177. [PMID: 34225810 PMCID: PMC8256575 DOI: 10.1186/s13075-021-02561-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 06/23/2021] [Indexed: 11/18/2022] Open
Abstract
Background To investigate the effects of inhibiting histone deacetylase (HDAC) 6 on inflammatory responses and tissue-destructive functions of fibroblast-like synoviocytes (FLS) in rheumatoid arthritis (RA). Methods FLS from RA patients were activated with interleukin (IL)-1β in the presence of increasing concentrations of M808, a novel specific HDAC6 inhibitor. Production of ILs, chemokines, and metalloproteinases (MMPs) was measured in ELISAs. Acetylation of tubulin and expression of ICAM-1 and VCAM-1 were assessed by Western blotting. Wound healing and adhesion assays were performed. Cytoskeletal organization was visualized by immunofluorescence. Finally, the impact of HDAC6 inhibition on the severity of arthritis and joint histology was examined in a murine model of adjuvant-induced arthritis (AIA). Results HDAC6 was selectively inhibited by M808. The HDAC6 inhibitor suppressed the production of MMP-1, MMP-3, IL-6, CCL2, CXCL8, and CXCL10 by RA-FLS in response to IL-1β. Increased acetylation of tubulin was associated with decreased migration of RA-FLS. Inhibiting HDAC6 induced cytoskeletal reorganization in RA-FLS by suppressing the formation of invadopodia following activation with IL-1β. In addition, M808 tended to decrease the expression of ICAM-1 and VCAM-1. In the AIA arthritis model, M808 improved the clinical arthritis score in a dose-dependent manner. Also, HDAC6 inhibition was associated with less severe synovial inflammation and joint destruction. Conclusion Inhibiting HDAC6 dampens the inflammatory and destructive activity of RA-FLS and reduces the severity of arthritis. Thus, targeting HDAC6 has therapeutic potential.
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Affiliation(s)
- Jin Kyun Park
- Division of Rheumatology, Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea
| | - Sehui Shon
- Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, South Korea
| | - Hyun Jung Yoo
- Division of Rheumatology, Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea.,Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, South Korea
| | - Dong-Hyeon Suh
- CKD Research Institute, Yongin-si, Gyeonggido, South Korea
| | - Daekwon Bae
- CKD Research Institute, Yongin-si, Gyeonggido, South Korea
| | - Jieun Shin
- CKD Research Institute, Yongin-si, Gyeonggido, South Korea
| | - Jae Hyun Jun
- CKD Research Institute, Yongin-si, Gyeonggido, South Korea
| | - Nina Ha
- CKD Research Institute, Yongin-si, Gyeonggido, South Korea
| | - Hyeseung Song
- CKD Research Institute, Yongin-si, Gyeonggido, South Korea
| | - Young Il Choi
- CKD Research Institute, Yongin-si, Gyeonggido, South Korea
| | - Thomas Pap
- Division of Mol Medicine of Musculoskeletal Tissue, University Munster, Munster, Germany
| | - Yeong Wook Song
- Division of Rheumatology, Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea. .,Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, South Korea. .,Medical Research Center, Institute of Human-Environment Interface Biology, Seoul National University, Seoul, South Korea.
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Teufel S, Köckemann P, Fabritius C, Wolff LI, Bertrand J, Pap T, Hartmann C. Loss of the WNT9a ligand aggravates the rheumatoid arthritis-like symptoms in hTNF transgenic mice. Cell Death Dis 2021; 12:494. [PMID: 33990546 PMCID: PMC8121832 DOI: 10.1038/s41419-021-03786-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 04/23/2021] [Accepted: 05/04/2021] [Indexed: 01/11/2023]
Abstract
Agonists and antagonists of the canonical Wnt signaling pathway are modulators of pathological aspects of rheumatoid arthritis (RA). Their activity is primarily modifying bone loss and bone formation, as shown in animal models of RA. More recently, modulation of Wnt signaling by the antagonist Sclerostin has also been shown to influence soft-tissue-associated inflammatory aspects of the disease pointing towards a role of Wnt signaling in soft-tissue inflammation as well. Yet, nothing is known experimentally about the role of Wnt ligands in RA. Here we provide evidence that altering Wnt signaling at the level of a ligand affects all aspects of the rheumatoid arthritic disease. WNT9a levels are increased in the pannus tissue of RA patients, and stimulation of synovial fibroblasts (SFB) with tumor necrosis factor (TNF) leads to increased transcription of Wnt9a. Loss of Wnt9a in a chronic TNF-dependent RA mouse model results in an aggravation of disease progression with enhanced pannus formation and joint destruction. Yet, loss of its activity in the acute K/BxN serum-transfer induced arthritis (STIA) mouse model, which is independent of TNF signaling, has no effect on disease severity or progression. Thus, suggesting a specific role for WNT9a in TNF-triggered RA. In synovial fibroblasts, WNT9a can activate the canonical Wnt/β-catenin pathway, but it can also activate P38- and downregulate NFκB signaling. Based on in vitro data, we propose that loss of Wnt9a creates a slight proinflammatory and procatabolic environment that boosts the TNF-mediated inflammatory response.
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Affiliation(s)
- Stefan Teufel
- Department of Bone and Skeletal Research, Institute of Musculoskeletal Medicine, Medical Faculty of the Westphalian Wilhelm University, 48149, Münster, Germany
| | - Petra Köckemann
- Department of Bone and Skeletal Research, Institute of Musculoskeletal Medicine, Medical Faculty of the Westphalian Wilhelm University, 48149, Münster, Germany
| | - Christine Fabritius
- Department of Bone and Skeletal Research, Institute of Musculoskeletal Medicine, Medical Faculty of the Westphalian Wilhelm University, 48149, Münster, Germany
| | - Lena I Wolff
- Department of Bone and Skeletal Research, Institute of Musculoskeletal Medicine, Medical Faculty of the Westphalian Wilhelm University, 48149, Münster, Germany
| | - Jessica Bertrand
- Department of Orthopedic Surgery, Otto-von-Guericke University Magdeburg, 39120, Magdeburg, Germany
| | - Thomas Pap
- Department of Molecular Medicine, Institute of Musculoskeletal Medicine, Medical Faculty of the Westphalian Wilhelm University, 48149, Münster, Germany
| | - Christine Hartmann
- Department of Bone and Skeletal Research, Institute of Musculoskeletal Medicine, Medical Faculty of the Westphalian Wilhelm University, 48149, Münster, Germany.
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Meyer F, Dittmann A, Kornak U, Herbster M, Pap T, Lohmann CH, Bertrand J. Chondrocytes From Osteoarthritic and Chondrocalcinosis Cartilage Represent Different Phenotypes. Front Cell Dev Biol 2021; 9:622287. [PMID: 33981699 PMCID: PMC8107373 DOI: 10.3389/fcell.2021.622287] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 03/02/2021] [Indexed: 11/13/2022] Open
Abstract
Basic calcium phosphate (BCP)-based calcification of cartilage is a common finding during osteoarthritis (OA) and is directly linked to the severity of the disease and hypertrophic differentiation of chondrocytes. Chondrocalcinosis (CC) is associated with calcium pyrophosphate dihydrate (CPPD) deposition disease in the joint inducing OA-like symptoms. There is only little knowledge about the effect of CPPD crystals on chondrocytes and the signaling pathways involved in their generation. The aim of this study was to investigate the chondrocyte phenotype in CC cartilage and the effect of CPPD crystals on chondrocytes. Cartilage samples of patients with CC, patients with severe OA, and healthy donors were included in this study. The presence of CC was evaluated using standard X-ray pictures, as well as von Kossa staining of cartilage sections. OA severity was evaluated using the Chambers Score on cartilage sections, as well as the radiological Kellgren–Lawrence Score. Patients with radiologically detectable CC presented calcification mainly on the cartilage surface, whereas OA patients showed calcification mainly in the pericellular matrix of hypertrophic chondrocytes. OA cartilage exhibited increased levels of collagen X and matrix metalloproteinase 13 (MMP13) compared with CC and healthy cartilage. This observation was confirmed by qRT-PCR using cartilage samples. No relevant influence of CPPD crystals on hypertrophic marker genes was observed in vitro, whereas BCP crystals significantly induced hypertrophic differentiation of chondrocytes. Interestingly, we observed an increased expression of p16 and p21 in cartilage samples of CC patients compared with OA patients and healthy controls, indicating cellular senescence. To investigate whether CPPD crystals were sufficient to induce senescence, we incubated chondrocytes with BCP and CPPD crystals and quantified senescence using β-gal staining. No significant difference was observed for the staining, but an increase of p16 expression was observed after 10 days of culture. Primary chondrocytes from CC patients produced CPPD crystals in culture. This phenotype was stabilized by mitomycin C-induced senescence. Healthy and OA chondrocytes did not exhibit this phenotype. BCP and CPPD crystals seem to be associated with two different chondrocyte phenotypes. Whereas BCP deposition is associated with chondrocyte hypertrophy, CPPD deposition is associated with cellular senescence.
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Affiliation(s)
- Franziska Meyer
- Department of Orthopaedic Surgery, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Annalena Dittmann
- Department of Orthopaedic Surgery, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Uwe Kornak
- Institut für Humangenetik, Universitätsmedizin Göttingen, Göttingen, Germany
| | - Maria Herbster
- Department of Orthopaedic Surgery, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Thomas Pap
- Institute of Experimental Musculoskeletal Medicine, University Hospital Muenster, Münster, Germany
| | - Christoph H Lohmann
- Department of Orthopaedic Surgery, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Jessica Bertrand
- Department of Orthopaedic Surgery, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
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15
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Bollmann M, Pinno K, Ehnold LI, Märtens N, Märtson A, Pap T, Stärke C, Lohmann CH, Bertrand J. MMP-9 mediated Syndecan-4 shedding correlates with osteoarthritis severity. Osteoarthritis Cartilage 2021; 29:280-289. [PMID: 33246160 DOI: 10.1016/j.joca.2020.10.009] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 09/25/2020] [Accepted: 10/13/2020] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Osteoarthritis (OA) is a degenerative joint disease inducing the degradation of the articular cartilage. Syndecan-4 (Sdc4) is a heparan sulfate proteoglycan, expressed under inflammatory conditions and by chondrocytes during OA. Little is known about Sdc4 shedding and its regulation in OA. Therefore, we investigated the regulation of Sdc4 shedding and underlying shedding mechanisms under OA conditions. DESIGN Articular cartilage, serum, synovial fluid and synovial membrane from OA patients with different radiological severity were analyzed. ELISA, RT-qPCR and IHC for Sdc4, MMP-2 and -9 were performed. MMP inhibitors and siRNA were evaluated for their effect on Sdc4 shedding by ELISA and on IL-1 signaling by western blot (pERK/ERK). RESULTS Shed Sdc4 was increased in synovial fluid of OA patients, but not in the serum and is a good predictor (AUC = 0.72) for OA severity with a sensitivity of 67.5% and specificity 65.2%. MMP-9, but not MMP-2, was increased in cartilage and synovial membrane at mRNA levels and in the synovial fluid at protein levels. Shed Sdc4 correlated with the amount of MMP-9 in synovial fluid. Further, the inhibition and knock-down of MMP-9 decreased the amount of shed Sdc4 in vitro. Increased Sdc4 shedding resulted in less phosphorylation of ERK upon IL-1β stimulation. CONCLUSION Shed Sdc4 might be a good prognostic biomarker for OA mediated cartilage degradation. MMP-9 seems to be the relevant sheddase for Sdc4 under OA conditions, desensitizing chondrocytes towards IL-1 signaling.
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Affiliation(s)
- M Bollmann
- Department of Orthopaedic Surgery, Otto-von-Guericke University, Magdeburg, Germany
| | - K Pinno
- Department of Orthopaedic Surgery, Otto-von-Guericke University, Magdeburg, Germany
| | - L I Ehnold
- Department of Orthopaedic Surgery, Otto-von-Guericke University, Magdeburg, Germany
| | - N Märtens
- Department of Orthopaedic Surgery, Otto-von-Guericke University, Magdeburg, Germany
| | - A Märtson
- Department of Traumatology and Orthopedics, University of Tartu, Tartu University Hospital, Tartu, Estonia
| | - T Pap
- Institute of Musculoskeletal Medicine, University Hospital Münster, Münster, Germany
| | - C Stärke
- Department of Orthopaedic Surgery, Otto-von-Guericke University, Magdeburg, Germany
| | - C H Lohmann
- Department of Orthopaedic Surgery, Otto-von-Guericke University, Magdeburg, Germany
| | - J Bertrand
- Department of Orthopaedic Surgery, Otto-von-Guericke University, Magdeburg, Germany.
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Roelofs AJ, Kania K, Rafipay AJ, Sambale M, Kuwahara ST, Collins FL, Smeeton J, Serowoky MA, Rowley L, Wang H, Gronewold R, Kapeni C, Méndez-Ferrer S, Little CB, Bateman JF, Pap T, Mariani FV, Sherwood J, Crump JG, De Bari C. Identification of the skeletal progenitor cells forming osteophytes in osteoarthritis. Ann Rheum Dis 2020; 79:1625-1634. [PMID: 32963046 PMCID: PMC8136618 DOI: 10.1136/annrheumdis-2020-218350] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 08/09/2020] [Accepted: 08/11/2020] [Indexed: 12/11/2022]
Abstract
OBJECTIVES Osteophytes are highly prevalent in osteoarthritis (OA) and are associated with pain and functional disability. These pathological outgrowths of cartilage and bone typically form at the junction of articular cartilage, periosteum and synovium. The aim of this study was to identify the cells forming osteophytes in OA. METHODS Fluorescent genetic cell-labelling and tracing mouse models were induced with tamoxifen to switch on reporter expression, as appropriate, followed by surgery to induce destabilisation of the medial meniscus. Contributions of fluorescently labelled cells to osteophytes after 2 or 8 weeks, and their molecular identity, were analysed by histology, immunofluorescence staining and RNA in situ hybridisation. Pdgfrα-H2BGFP mice and Pdgfrα-CreER mice crossed with multicolour Confetti reporter mice were used for identification and clonal tracing of mesenchymal progenitors. Mice carrying Col2-CreER, Nes-CreER, LepR-Cre, Grem1-CreER, Gdf5-Cre, Sox9-CreER or Prg4-CreER were crossed with tdTomato reporter mice to lineage-trace chondrocytes and stem/progenitor cell subpopulations. RESULTS Articular chondrocytes, or skeletal stem cells identified by Nes, LepR or Grem1 expression, did not give rise to osteophytes. Instead, osteophytes derived from Pdgfrα-expressing stem/progenitor cells in periosteum and synovium that are descendants from the Gdf5-expressing embryonic joint interzone. Further, we show that Sox9-expressing progenitors in periosteum supplied hybrid skeletal cells to the early osteophyte, while Prg4-expressing progenitors from synovial lining contributed to cartilage capping the osteophyte, but not to bone. CONCLUSION Our findings reveal distinct periosteal and synovial skeletal progenitors that cooperate to form osteophytes in OA. These cell populations could be targeted in disease modification for treatment of OA.
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Affiliation(s)
- Anke J Roelofs
- Arthritis and Regenerative Medicine Laboratory, Aberdeen Centre for Arthritis and Musculoskeletal Health, Institute of Medical Sciences, University of Aberdeen, Aberdeen, UK
| | - Karolina Kania
- Arthritis and Regenerative Medicine Laboratory, Aberdeen Centre for Arthritis and Musculoskeletal Health, Institute of Medical Sciences, University of Aberdeen, Aberdeen, UK
| | - Alexandra J Rafipay
- Arthritis and Regenerative Medicine Laboratory, Aberdeen Centre for Arthritis and Musculoskeletal Health, Institute of Medical Sciences, University of Aberdeen, Aberdeen, UK
| | - Meike Sambale
- Institute of Musculoskeletal Medicine, University Hospital Munster, Munster, Germany
| | - Stephanie T Kuwahara
- Eli and Edythe Broad CIRM Center for Regenerative Medicine and Stem Cell Research, Department of Stem Cell Biology and Regenerative Medicine, University of Southern California Keck School of Medicine, Los Angeles, California, USA
| | - Fraser L Collins
- Arthritis and Regenerative Medicine Laboratory, Aberdeen Centre for Arthritis and Musculoskeletal Health, Institute of Medical Sciences, University of Aberdeen, Aberdeen, UK
| | - Joanna Smeeton
- Eli and Edythe Broad CIRM Center for Regenerative Medicine and Stem Cell Research, Department of Stem Cell Biology and Regenerative Medicine, University of Southern California Keck School of Medicine, Los Angeles, California, USA
- Department of Rehabilitation and Regenerative Medicine, Columbia University Irving Medical Center, New York, New York, USA
| | - Maxwell A Serowoky
- Eli and Edythe Broad CIRM Center for Regenerative Medicine and Stem Cell Research, Department of Stem Cell Biology and Regenerative Medicine, University of Southern California Keck School of Medicine, Los Angeles, California, USA
| | - Lynn Rowley
- Murdoch Children's Research Institute, Parkville, Victoria, Australia
| | - Hui Wang
- Arthritis and Regenerative Medicine Laboratory, Aberdeen Centre for Arthritis and Musculoskeletal Health, Institute of Medical Sciences, University of Aberdeen, Aberdeen, UK
| | - René Gronewold
- Institute of Musculoskeletal Medicine, University Hospital Munster, Munster, Germany
| | - Chrysa Kapeni
- Wellcome Trust-Medical Research Council Cambridge Stem Cell Institute and Department of Haematology, University of Cambridge, Cambridge, UK
| | - Simón Méndez-Ferrer
- Wellcome Trust-Medical Research Council Cambridge Stem Cell Institute and Department of Haematology, University of Cambridge, Cambridge, UK
| | - Christopher B Little
- Raymond Purves Bone and Joint Laboratories, Kolling Institute of Medical Research, The University of Sydney, St Leonards, New South Wales, Australia
| | - John F Bateman
- Murdoch Children's Research Institute, Parkville, Victoria, Australia
- Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia
| | - Thomas Pap
- Institute of Musculoskeletal Medicine, University Hospital Munster, Munster, Germany
| | - Francesca V Mariani
- Eli and Edythe Broad CIRM Center for Regenerative Medicine and Stem Cell Research, Department of Stem Cell Biology and Regenerative Medicine, University of Southern California Keck School of Medicine, Los Angeles, California, USA
| | - Joanna Sherwood
- Institute of Musculoskeletal Medicine, University Hospital Munster, Munster, Germany
| | - J Gage Crump
- Eli and Edythe Broad CIRM Center for Regenerative Medicine and Stem Cell Research, Department of Stem Cell Biology and Regenerative Medicine, University of Southern California Keck School of Medicine, Los Angeles, California, USA
| | - Cosimo De Bari
- Arthritis and Regenerative Medicine Laboratory, Aberdeen Centre for Arthritis and Musculoskeletal Health, Institute of Medical Sciences, University of Aberdeen, Aberdeen, UK
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Severmann AC, Jochmann K, Feller K, Bachvarova V, Piombo V, Stange R, Holzer T, Brachvogel B, Esko J, Pap T, Hoffmann D, Vortkamp A. An altered heparan sulfate structure in the articular cartilage protects against osteoarthritis. Osteoarthritis Cartilage 2020; 28:977-987. [PMID: 32315715 PMCID: PMC8422443 DOI: 10.1016/j.joca.2020.04.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 04/05/2020] [Accepted: 04/09/2020] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Osteoarthritis (OA) is a progressive degenerative disease of the articular cartilage caused by an unbalanced activity of proteases, cytokines and other secreted proteins. Since heparan sulfate (HS) determines the activity of many extracellular factors, we investigated its role in OA progression. METHODS To analyze the role of the HS level, OA was induced by anterior cruciate ligament transection (ACLT) in transgenic mice carrying a loss-of-function allele of Ext1 in clones of chondrocytes (Col2-rtTA-Cre;Ext1e2fl/e2fl). To study the impact of the HS sulfation pattern, OA was surgically induced in mice with a heterozygous (Ndst1+/-) or chondrocyte-specific (Col2-Cre;Ndst1fl/fl) loss-of-function allele of the sulfotransferase Ndst1. OA progression was evaluated using the OARSI scoring system. To investigate expression and activity of cartilage degrading proteases, femoral head explants of Ndst1+/- mutants were analyzed by qRT-PCR, Western Blot and gelatin zymography. RESULTS All investigated mouse strains showed reduced OA scores (Col2-rtTA-Cre;Ext1e2fl/e2fl: 0.83; 95% HDI 0.72-0.96; Ndst1+/-: 0.83, 95% HDI 0.74-0.9; Col2-Cre;Ndst1fl/fl: 0.87, 95% HDI 0.76-1). Using cartilage explant cultures of Ndst1 animals, we detected higher amounts of aggrecan degradation products in wildtype samples (NITEGE 4.24-fold, 95% HDI 1.05-18.55; VDIPEN 1.54-fold, 95% HDI 1.54-2.34). Accordingly, gelatin zymography revealed lower Mmp2 activity in mutant samples upon RA-treatment (0.77-fold, 95% HDI: 0.60-0.96). As expression of major proteases and their inhibitors was not altered, HS seems to regulate cartilage degeneration by affecting protease activity. CONCLUSION A decreased HS content or a reduced sulfation level protect against OA progression by regulating protease activity rather than expression.
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Affiliation(s)
- A-C Severmann
- Department of Developmental Biology, Center for Medical Biotechnology, Faculty Biology, University Duisburg-Essen, Germany.
| | - K Jochmann
- Department of Developmental Biology, Center for Medical Biotechnology, Faculty Biology, University Duisburg-Essen, Germany.
| | - K Feller
- Department of Developmental Biology, Center for Medical Biotechnology, Faculty Biology, University Duisburg-Essen, Germany.
| | - V Bachvarova
- Department of Developmental Biology, Center for Medical Biotechnology, Faculty Biology, University Duisburg-Essen, Germany.
| | - V Piombo
- Department of Developmental Biology, Center for Medical Biotechnology, Faculty Biology, University Duisburg-Essen, Germany.
| | - R Stange
- Zentrum für Muskuloskelettale Medizin, Westfälische Wilhelms-Universität Münster, Germany.
| | - T Holzer
- Center for Biochemistry, Department of Pediatrics and Adolescent Medicine, Experimental Neonatology, Medical Faculty, University of Cologne, Germany.
| | - B Brachvogel
- Center for Biochemistry, Department of Pediatrics and Adolescent Medicine, Experimental Neonatology, Medical Faculty, University of Cologne, Germany.
| | - J Esko
- Department of Cellular and Molecular Medicine, Glycobiology Research & Training Center, University of California, San Diego, La Jolla, CA, 92093-0687, USA.
| | - T Pap
- Zentrum für Muskuloskelettale Medizin, Westfälische Wilhelms-Universität Münster, Germany.
| | - D Hoffmann
- Department Bioinformatics and Computational Biophysics, Center for Medical Biotechnology, Faculty Biology, University Duisburg-Essen, Germany.
| | - A Vortkamp
- Department of Developmental Biology, Center for Medical Biotechnology, Faculty Biology, University Duisburg-Essen, Germany.
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Nasi S, Bertrand J, Bollmann M, Stange R, Pap T. THU0435 CALCIUM PYROPHOSPHATE DIHYDRATE (CPPD) CRYSTALS BUT NOT BASIC CALCIUM PHOSPHATE (BCP) CRYSTALS INDUCE SYNDECAN-4 EXPRESSION IN CARTILAGE. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.2772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Background:Chondrocalcinosis is a painful rheumatic condition caused by the deposition of calcium pyrophosphate dihydrate crystals (CPPD) in joint tissues, and especially in cartilage. It is known that CPPD crystals cause inflammation and degenerative changes in joint, but the underlying mechanisms remain poorly understood. In particular, nothing is known about how these crystals regulates transmembrane heparan sulphate proteoglycans (HSPGs). Our attention focused on one family of HSPGs called syndecans as they have important roles both as adhesion molecules, by mediating chondrocyte-extracellular matrix interactions, and as modulators of intracellular signaling triggered by cytokines and growth factors.Objectives:The aim of this study was to evaluate how CPPD crystals modulates syndecan expression in chondrocytes and in cartilage, and how this modulation can be ultimately linked to cartilage damage during chondrocylcinosis.Methods:Murine chondrocitic ATDC5 cells were stimulated with 0,1 ng/ml CPPD crystals or with 0,1 ng/ml basic-calcium phosphate crystals (BCP), a family of calcium-containing crystals found in other rheumatic conditions such as osteoarthritis (OA). Cytotoxicity was evaluated by lactate dehydrogenase (LDH) release in the supernatant at 30 minutes, and 3, 6, 24 hours after stimulation. At the same time-points, mRNA expression levels of syndecans (Synd-1, -2, -3, -4) and of matrix-degrading enzymes (Mmp-3, -9, -13; Adamts-4, -5) was analysed by qRT-PCR. Finally, Syndecan-4 protein expression was studied by immunohistochemistry (IHC) in cartilage samples of patients with chondrocalcinosis and in samples of patients with severe OA without chondrocalcinosis as control.Results:LDH assay revealed no increased cytotoxicity by CPPD or BCP at any time-point. qRT-PCR indicated that CPPD crystals but not BCP crystals induced Synd-2 and -3 upregulation at 30 minutes after stimulation and Synd-4 upregulation at 3 hours, while no modulation of syndecans was seen at later time-points. CPPD also induced Adamts-4 expression at 3 hours after stimulation, and Mmp-9 expression at 3 and 6 hours. The expression of the other matrix-degrading enzymes was not affected. Human chondrocalcinosis cartilage exhibited enhanced Synd-4 expression compared to severe OA cartilage containing BCP calcification. Interestingly, Synd-4 expression was observed in the extracellular matrix but not on cell membrane, suggesting that maybe Synd-4 undergoes shedding (Figure 1).Figure 1.Representative Synd-4 IHC in control patients (Ctrl, severe OA) and chondrocalcinosis patients (CPPD). Note increased Synd-4 expression in extracellular matrix of CPPD patients compared to Ctrl ones.Conclusion:BCP and CPPD crystals seem to trigger differential effects in terms of modulation of syndecans in chondrocitic cells. CPPD crystals induce Synd-4 and Adamts-4 and Mmp-9 which are not induced by BCP crystals. It remains to be clarified whether the two events are interlinked. In particular, further studies are required to investigate if Adamts-4 and Mmp-9 are involved in Synd-4 shedding or if vice versa Synd-4 regulates Adamts-4 and Mmp-9 activation and downstream cartilage breakdown in chondrocalcinosis.Disclosure of Interests: :Sonia Nasi: None declared, Jessica Bertrand Grant/research support from: Pfizer, Speakers bureau: Pfizer, Miriam Bollmann: None declared, Richard Stange: None declared, Thomas Pap: None declared
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Klein S, Mentrup B, Timmen M, Sherwood J, Lindemann O, Fobker M, Kronenberg D, Pap T, Raschke MJ, Stange R. Modulation of Transient Receptor Potential Channels 3 and 6 Regulates Osteoclast Function with Impact on Trabecular Bone Loss. Calcif Tissue Int 2020; 106:655-664. [PMID: 32140760 DOI: 10.1007/s00223-020-00673-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Accepted: 02/08/2020] [Indexed: 01/09/2023]
Abstract
Enhanced osteoclast formation and function is a fundamental cause of alterations to bone structure and plays an important role in several diseases impairing bone quality. Recent work revealed that TRP calcium channels 3 and 6 might play a special role in this context. By analyzing the bone phenotype of TRPC6-deficient mice we detected a regulatory effect of TRPC3 on osteoclast function. These mice exhibit a significant decrease in bone volume per tissue volume, trabecular thickness and -number together with an increased number of osteoclasts found on the surface of trabecular bone. Primary bone marrow mononuclear cells from TRPC6-deficient mice showed enhanced osteoclastic differentiation and resorptive activity. This was confirmed in vitro by using TRPC6-deficient RAW 264.7 cells. TRPC6 deficiency led to an increase of TRPC3 in osteoclasts, suggesting that TRPC3 overcompensates for the loss of TRPC6. Raised intracellular calcium levels led to enhanced NFAT-luciferase reporter gene activity in the absence of TRPC6. In line with these findings inhibition of TRPC3 using the specific inhibitor Pyr3 significantly reduced intracellular calcium concentrations and normalized osteoclastic differentiation and resorptive activity of TRPC6-deficient cells. Interestingly, an up-regulation of TRPC3 could be detected in a cohort of patients with low bone mineral density by comparing micro array data sets of circulating human osteoclast precursor cells to those from patients with high bone mineral density, suggesting a noticeable contribution of TRP calcium channels on bone quality. These observations demonstrate a novel regulatory function of TRPC channels in the process of osteoclastic differentiation and bone loss.
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Affiliation(s)
- Sebastian Klein
- Institute of Musculoskeletal Medicine, University Münster, Münster, Germany
- Institute of Pathology, University Hospital of Cologne, Cologne, Germany
| | - Birgit Mentrup
- Institute of Musculoskeletal Medicine, University Münster, Münster, Germany
| | - Melanie Timmen
- Institute of Musculoskeletal Medicine, University Münster, Münster, Germany
| | - Joanna Sherwood
- Institute of Musculoskeletal Medicine, University Münster, Münster, Germany
| | - Otto Lindemann
- Institute of Physiology II, University Münster, Münster, Germany
| | - Manfred Fobker
- Center for Laboratory Medicine, University Hospital Münster, Münster, Germany
| | - Daniel Kronenberg
- Institute of Musculoskeletal Medicine, University Münster, Münster, Germany
| | - Thomas Pap
- Institute of Musculoskeletal Medicine, University Münster, Münster, Germany
| | - Michael J Raschke
- Department of Trauma, Hand and Reconstructive Surgery University Hospital Münster, Münster, Germany
| | - Richard Stange
- Institute of Musculoskeletal Medicine, University Münster, Münster, Germany.
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Michel PA, Kronenberg D, Neu G, Stolberg-Stolberg J, Frank A, Pap T, Langer M, Fehr M, Raschke MJ, Stange R. Microsurgical reconstruction affects the outcome in a translational mouse model for Achilles tendon healing. J Orthop Translat 2020; 24:1-11. [PMID: 32489862 PMCID: PMC7260609 DOI: 10.1016/j.jot.2020.04.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 03/17/2020] [Accepted: 04/08/2020] [Indexed: 01/02/2023] Open
Abstract
Background Animal models are one of the first steps in translation of basic science findings to clinical practice. For tendon healing research, transgenic mouse models are important to advance therapeutic strategies. However, the small size of the structures complicates surgical approaches, histological assessment, and biomechanical testing. In addition, available models are not standardized and difficult to compare. How surgery itself affects the healing outcome has not been investigated yet. The focus of the study was to develop a procedure that includes a transection and microsurgical reconstruction of the Achilles tendon but, unlike other models, preserves the sciatic nerve. We wanted to examine how distinct parts of the technique influenced healing. Methods For this animal model study, we used 96 wild-type male C57BL/6 mice aged 8–12 weeks. We evaluated different suture techniques and macroscopically confirmed the optimal combination of suture material and technique to minimize tendon gap formation. A key element is the detailed, step-by-step illustration of the surgery. In addition, we assessed histological (Herovici and Alcian blue staining) outcome parameters at 1–16 weeks postoperatively. Microcomputed tomography (micro-CT) was performed to measure the bone volume of heterotopic ossifications (HOs). Biomechanical analyses were carried out using a viscoelastic protocol on the biomechanical testing machine LM1. Results A modified 4-strand suture combined with a cerclage for immobilization without transection of the sciatic nerve reliably eliminated gap formation. The maximal dorsal extension of the hindlimb at the upper ankle joint from the equinus position (limited by the immobilization cerclage) increased over time postoperatively (operation: 28.8 ± 2.2°; 1 week: 54 ± 36°; 6 weeks: 80 ± 11.7°; 16 weeks: 96 ± 15.8°, p > 0.05). Histological staining revealed a maturation of collagen fibres within 6 weeks, whereas masses of cartilage were visible throughout the healing period. Micro-CT scans detected the development of HOs starting at 4 weeks and further progression at 6 and 16 weeks (bone volume, 4 weeks: 0.07604 ± 0.05286 mm3; 6 weeks: 0.50682 ± 0.68841 mm3; 16 weeks: 2.36027 ± 0.85202 mm3, p > 0.001). In-depth micro-CT analysis of the different surgical elements revealed that an injury of the tendon is a key factor for the development of HOs. Immobilization alone does not trigger HOs. Biomechanical properties of repaired tendons were greatly altered and remained inferior 6 weeks after surgery. Conclusion With this study, we demonstrated that the microsurgical technique greatly influences the short- and longer-term healing outcome. When the sciatic nerve is preserved, the best surgical reconstruction of the tendon defect is achieved by a 4-strand core suture in combination with a tibiofibular cerclage for postoperative immobilization. The cerclage promotes a gradual increase in the range of motion of the upper ankle joint, comparable with an early mobilization rehabilitation protocol. HO, as a key mechanism for poor tendon healing, is progressive and can be monitored early in the model. The translational potential of this article The study enhances the understanding of model dependent factors of healing. The described reconstruction technique provides a reproducible and translational rodent model for future Achilles tendon healing research. In combination with transgenic strains, it can be facilitated to advance therapeutic strategies to improve the clinical results of tendon injuries.
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Affiliation(s)
- Philipp A Michel
- Department of Trauma, Hand- and Reconstructive Surgery, University Hospital Muenster, Muenster, Germany
| | - Daniel Kronenberg
- Department of Regenerative Musculoskeletal Medicine, Institute of Musculoskeletal Medicine, Westfaelische Wilhelms University Muenster, Muenster, Germany
| | - Gertje Neu
- University of Veterinary Medicine Hannover, Foundation, Hannover, Germany
| | - Josef Stolberg-Stolberg
- Department of Trauma, Hand- and Reconstructive Surgery, University Hospital Muenster, Muenster, Germany
| | - Andre Frank
- Department of Trauma, Hand- and Reconstructive Surgery, University Hospital Muenster, Muenster, Germany
| | - Thomas Pap
- Institute of Musculoskeletal Medicine, Westfaelische Wilhelms University Muenster, Muenster, Germany
| | - Martin Langer
- Department of Trauma, Hand- and Reconstructive Surgery, University Hospital Muenster, Muenster, Germany
| | - Michael Fehr
- University of Veterinary Medicine Hannover, Foundation, Hannover, Germany
| | - Michael J Raschke
- Department of Trauma, Hand- and Reconstructive Surgery, University Hospital Muenster, Muenster, Germany
| | - Richard Stange
- Department of Regenerative Musculoskeletal Medicine, Institute of Musculoskeletal Medicine, Westfaelische Wilhelms University Muenster, Muenster, Germany
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Bertrand J, Kräft T, Gronau T, Sherwood J, Rutsch F, Lioté F, Dell'Accio F, Lohmann CH, Bollmann M, Held A, Pap T. BCP crystals promote chondrocyte hypertrophic differentiation in OA cartilage by sequestering Wnt3a. Ann Rheum Dis 2020; 79:975-984. [PMID: 32371389 DOI: 10.1136/annrheumdis-2019-216648] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 04/15/2020] [Accepted: 04/18/2020] [Indexed: 12/14/2022]
Abstract
OBJECTIVE Calcification of cartilage with basic calcium phosphate (BCP) crystals is a common phenomenon during osteoarthritis (OA). It is directly linked to the severity of the disease and known to be associated to hypertrophic differentiation of chondrocytes. One morphogen regulating hypertrophic chondrocyte differentiation is Wnt3a. METHODS Calcification and sulfation of extracellular matrix of the cartilage was analysed over a time course from 6 to 22 weeks in mice and different OA grades of human cartilage. Wnt3a and ß-catenin was stained in human and murine cartilage. Expression of sulfation modulating enzymes (HS2St1, HS6St1) was analysed using quantitative reverse transcription PCR (RT-PCR). The influence of BCP crystals on the chondrocyte phenotype was investigated using quantitative RT-PCR for the marker genes Axin2, Sox9, Col2, MMP13, ColX and Aggrecan. Using western blot for β-catenin and pLRP6 we investigated the activation of Wnt signalling. The binding capacity of BCP for Wnt3a was analysed using immunohistochemical staining and western blot. RESULTS Here, we report that pericellular matrix sulfation is increased in human and murine OA. Wnt3a co-localised with heparan sulfate proteoglycans in the pericellular matrix of chondrocytes in OA cartilage, in which canonical Wnt signalling was activated. In vitro, BCP crystals physically bound to Wnt3a. Interestingly, BCP crystals were sufficient to induce canonical Wnt signalling as assessed by phosphorylation of LRP6 and stabilisation of β-catenin, and to induce a hypertrophic shift of the chondrocyte phenotype. CONCLUSION Consequently, our data identify BCP crystals as a concentrating factor for Wnt3a in the pericellular matrix and an inducer of chondrocyte hypertrophy.
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Affiliation(s)
- Jessica Bertrand
- Department of Orthopaedic Surgery, Otto-von-Guericke University, Magdeburg, Germany
| | - Tabea Kräft
- Division of Mol Medicine of Musculoskeletal Tissue, University Munster, Munster, Germany
| | - Tobias Gronau
- Division of Mol Medicine of Musculoskeletal Tissue, University Munster, Munster, Germany
| | - Joanna Sherwood
- Division of Mol Medicine of Musculoskeletal Tissue, University Munster, Munster, Germany
| | - Frank Rutsch
- Department of General Pediatrics, University Munster, Munster, Germany
| | - Frédéric Lioté
- INSERM UMR-1132, Université Paris Diderot, Paris, France
| | - Francesco Dell'Accio
- William Harvey Research Institute, Centre for Experimental Medicine and Rheumatology, London, UK
| | - Christoph H Lohmann
- Department of Orthopaedic Surgery, Otto-von-Guericke University, Magdeburg, Germany
| | - Miriam Bollmann
- Department of Orthopaedic Surgery, Otto-von-Guericke University, Magdeburg, Germany
| | - Annelena Held
- Department of Orthopaedic Surgery, Otto-von-Guericke University, Magdeburg, Germany
| | - Thomas Pap
- Division of Mol Medicine of Musculoskeletal Tissue, University Munster, Munster, Germany
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Godmann L, Bollmann M, Korb-Pap A, König U, Sherwood J, Beckmann D, Mühlenberg K, Echtermeyer F, Whiteford J, De Rossi G, Pap T, Bertrand J. Antibody-mediated inhibition of syndecan-4 dimerisation reduces interleukin (IL)-1 receptor trafficking and signalling. Ann Rheum Dis 2020; 79:481-489. [PMID: 32094158 DOI: 10.1136/annrheumdis-2019-216847] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 02/03/2020] [Accepted: 02/05/2020] [Indexed: 01/10/2023]
Abstract
OBJECTIVE Syndecan-4 (sdc4) is a cell-anchored proteoglycan that consists of a transmembrane core protein and glucosaminoglycan (GAG) side chains. Binding of soluble factors to the GAG chains of sdc4 may result in the dimerisation of sdc4 and the initiation of downstream signalling cascades. However, the question of how sdc4 dimerisation and signalling affects the response of cells to inflammatory stimuli is unknown. METHODS Sdc4 immunostaining was performed on rheumatoid arthritis (RA) tissue sections. Interleukin (IL)-1 induced extracellular signal-regulated kinases (ERK) phosphorylation and matrix metalloproteinase-3 production was investigated. Il-1 binding to sdc4 was investigated using immunoprecipitation. IL-1 receptor (IL1R1) staining on wild-type, sdc4 and IL1R1 knockout fibroblasts was performed in fluorescence-activated cell sorting analyses. A blocking sdc4 antibody was used to investigate sdc4 dimerisation, IL1R1 expression and the histological paw destruction in the human tumour necrosis factor-alpha transgenic mouse. RESULTS We show that in fibroblasts, the loss of sdc4 or the antibody-mediated inhibition of sdc4 dimerisation reduces the cell surface expression of the IL-1R and regulates the sensitivity of fibroblasts to IL-1. We demonstrate that IL-1 directly binds to sdc4 and in an IL-1R-independent manner leads to its dimerisation. IL-1-induced dimerisation of sdc4 regulates caveolin vesicle-mediated trafficking of the IL1R1, which in turn determines the responsiveness to IL-1. Administration of antibodies (Ab) against the dimerisation domain of sdc4, thus, strongly reduces the expression IL1R1 on arthritic fibroblasts both in vitro and an animal model of human RA. CONCLUSION Collectively, our data suggest that Ab that specifically inhibit sdc4 dimerisation may support anti-IL-1 strategies in diseases such as inflammatory arthritis.
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Affiliation(s)
- Lars Godmann
- Institute of Musculoskeletal Medicine (IMM), University Muenster, Muenster, Germany
| | - Miriam Bollmann
- Department of Orthopaedic Surgery, Otto-von-Guericke University, Magdeburg, Germany
| | - Adelheid Korb-Pap
- Institute of Musculoskeletal Medicine (IMM), University Muenster, Muenster, Germany
| | - Ulrich König
- Institute of Musculoskeletal Medicine (IMM), University Muenster, Muenster, Germany
| | - Joanna Sherwood
- Institute of Musculoskeletal Medicine (IMM), University Muenster, Muenster, Germany
| | - Denise Beckmann
- Institute of Musculoskeletal Medicine (IMM), University Muenster, Muenster, Germany
| | - Katja Mühlenberg
- Institute of Musculoskeletal Medicine (IMM), University Muenster, Muenster, Germany
| | - Frank Echtermeyer
- Department of Anesthesiology and Intensive Care Medicine, Hannover Medical School, Hanover, Germany
| | - James Whiteford
- Centre for Microvascular Research, Queen Mary University of London, London, UK
| | - Giulia De Rossi
- Centre for Microvascular Research, Queen Mary University of London, London, UK
| | - Thomas Pap
- Institute of Musculoskeletal Medicine (IMM), University Muenster, Muenster, Germany
| | - Jessica Bertrand
- Department of Orthopaedic Surgery, Otto-von-Guericke University, Magdeburg, Germany
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Skryabin BV, Kummerfeld DM, Gubar L, Seeger B, Kaiser H, Stegemann A, Roth J, Meuth SG, Pavenstädt H, Sherwood J, Pap T, Wedlich-Söldner R, Sunderkötter C, Schwartz YB, Brosius J, Rozhdestvensky TS. Pervasive head-to-tail insertions of DNA templates mask desired CRISPR-Cas9-mediated genome editing events. Sci Adv 2020; 6:eaax2941. [PMID: 32095517 PMCID: PMC7015686 DOI: 10.1126/sciadv.aax2941] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Accepted: 11/25/2019] [Indexed: 02/05/2023]
Abstract
CRISPR-Cas9-mediated homology-directed DNA repair is the method of choice for precise gene editing in a wide range of model organisms, including mouse and human. Broad use by the biomedical community refined the method, making it more efficient and sequence specific. Nevertheless, the rapidly evolving technique still contains pitfalls. During the generation of six different conditional knockout mouse models, we discovered that frequently (sometimes solely) homology-directed repair and/or nonhomologous end joining mechanisms caused multiple unwanted head-to-tail insertions of donor DNA templates. Disturbingly, conventionally applied PCR analysis, in most cases, failed to identify these multiple integration events, which led to a high rate of falsely claimed precisely edited alleles. We caution that comprehensive analysis of modified alleles is essential and offer practical solutions to correctly identify precisely edited chromosomes.
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Affiliation(s)
- Boris V Skryabin
- Medical Faculty, Core Facility Transgenic Animal and Genetic Engineering Models (TRAM), University of Muenster, Muenster, Germany
| | - Delf-Magnus Kummerfeld
- Medical Faculty, Core Facility Transgenic Animal and Genetic Engineering Models (TRAM), University of Muenster, Muenster, Germany
| | - Leonid Gubar
- Medical Faculty, Core Facility Transgenic Animal and Genetic Engineering Models (TRAM), University of Muenster, Muenster, Germany
| | - Birte Seeger
- Medical Faculty, Core Facility Transgenic Animal and Genetic Engineering Models (TRAM), University of Muenster, Muenster, Germany
| | - Helena Kaiser
- Medical Faculty, Core Facility Transgenic Animal and Genetic Engineering Models (TRAM), University of Muenster, Muenster, Germany
| | - Anja Stegemann
- Medical Faculty, Core Facility Transgenic Animal and Genetic Engineering Models (TRAM), University of Muenster, Muenster, Germany
| | - Johannes Roth
- Institute of Immunology, University Hospital Muenster, Muenster, Germany
| | - Sven G Meuth
- Clinic of Neurology with Institute of Translational Neurology, University Hospital Muenster, Muenster, Germany
| | | | - Joanna Sherwood
- Institute of Experimental Musculoskeletal Medicine (IMM), University Hospital Muenster, Muenster, Germany
| | - Thomas Pap
- Institute of Experimental Musculoskeletal Medicine (IMM), University Hospital Muenster, Muenster, Germany
| | | | - Cord Sunderkötter
- Department of Dermatology and Venereology, University Hospital Halle, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
| | - Yuri B Schwartz
- Department of Molecular Biology, Umeå University, 901 87 Umeå, Sweden
| | - Juergen Brosius
- Institute of Experimental Pathology (ZMBE), University of Muenster, Muenster, Germany.,Institutes for Systems Genetics, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Timofey S Rozhdestvensky
- Medical Faculty, Core Facility Transgenic Animal and Genetic Engineering Models (TRAM), University of Muenster, Muenster, Germany
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Pap T, Dankbar B, Wehmeyer C, Korb-Pap A, Sherwood J. Synovial fibroblasts and articular tissue remodelling: Role and mechanisms. Semin Cell Dev Biol 2020; 101:140-145. [PMID: 31956018 DOI: 10.1016/j.semcdb.2019.12.006] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 12/12/2019] [Accepted: 12/12/2019] [Indexed: 02/06/2023]
Abstract
Synovial joints are unique functional elements of the body and provide the ability for locomotion and for physical interaction with the environment. They are composed of different connective tissue structures, of which the synovial membrane is one central component. It shows a number of peculiarities that makes it different from other membranes in our body, while several lines of evidence suggest that synovial fibroblasts, also termed fibroblast-like synoviocytes (FLS) critically contribute to these peculiarities. This becomes evident particularly under disease conditions such as in rheumatoid arthritis and osteoarthritis, where the synovium is a key pathophysiological component. Therefore, an in-depth knowledge of FLS biology is not only important for understanding key features of articular function but also provides explanations for important characteristics of both degenerative and inflammatory joint diseases. This article reviews the structure, biochemical composition and functions of the synovial membrane and by focusing on the role of synovial fibroblasts explains key features of articular tissue remodelling particularly under disease conditions.
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Affiliation(s)
- Thomas Pap
- Institute of Musculoskeletal Medicine (IMM), Westfalian Wilhelms-University Münster, Germany.
| | - Berno Dankbar
- Institute of Musculoskeletal Medicine (IMM), Westfalian Wilhelms-University Münster, Germany
| | - Corinna Wehmeyer
- Institute of Musculoskeletal Medicine (IMM), Westfalian Wilhelms-University Münster, Germany
| | - Adelheid Korb-Pap
- Institute of Musculoskeletal Medicine (IMM), Westfalian Wilhelms-University Münster, Germany
| | - Joanna Sherwood
- Institute of Musculoskeletal Medicine (IMM), Westfalian Wilhelms-University Münster, Germany
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Ramisch A, Heinrich V, Glaser LV, Fuchs A, Yang X, Benner P, Schöpflin R, Li N, Kinkley S, Römer-Hillmann A, Longinotto J, Heyne S, Czepukojc B, Kessler SM, Kiemer AK, Cadenas C, Arrigoni L, Gasparoni N, Manke T, Pap T, Pospisilik JA, Hengstler J, Walter J, Meijsing SH, Chung HR, Vingron M. CRUP: a comprehensive framework to predict condition-specific regulatory units. Genome Biol 2019; 20:227. [PMID: 31699133 PMCID: PMC6839171 DOI: 10.1186/s13059-019-1860-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Accepted: 10/14/2019] [Indexed: 02/06/2023] Open
Abstract
We present the software Condition-specific Regulatory Units Prediction (CRUP) to infer from epigenetic marks a list of regulatory units consisting of dynamically changing enhancers with their target genes. The workflow consists of a novel pre-trained enhancer predictor that can be reliably applied across cell types and species, solely based on histone modification ChIP-seq data. Enhancers are subsequently assigned to different conditions and correlated with gene expression to derive regulatory units. We thoroughly test and then apply CRUP to a rheumatoid arthritis model, identifying enhancer-gene pairs comprising known disease genes as well as new candidate genes.
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Affiliation(s)
- Anna Ramisch
- Department of Computational Molecular Biology, Max Planck Institute for Molecular Genetics, Berlin, 14195, Germany
| | - Verena Heinrich
- Department of Computational Molecular Biology, Max Planck Institute for Molecular Genetics, Berlin, 14195, Germany
| | - Laura V Glaser
- Department of Computational Molecular Biology, Max Planck Institute for Molecular Genetics, Berlin, 14195, Germany
| | - Alisa Fuchs
- Otto-Warburg-Laboratory, Computational Epigenomics, Max Planck Institute for Molecular Genetics, Berlin, 14195, Germany
| | - Xinyi Yang
- Otto-Warburg-Laboratory, Computational Epigenomics, Max Planck Institute for Molecular Genetics, Berlin, 14195, Germany
| | - Philipp Benner
- Department of Computational Molecular Biology, Max Planck Institute for Molecular Genetics, Berlin, 14195, Germany
| | - Robert Schöpflin
- Department of Computational Molecular Biology, Max Planck Institute for Molecular Genetics, Berlin, 14195, Germany
| | - Na Li
- Otto-Warburg-Laboratory, Computational Epigenomics, Max Planck Institute for Molecular Genetics, Berlin, 14195, Germany
| | - Sarah Kinkley
- Otto-Warburg-Laboratory, Computational Epigenomics, Max Planck Institute for Molecular Genetics, Berlin, 14195, Germany
| | - Anja Römer-Hillmann
- Institute of Musculoskeletal Medicine, University Hospital Münster, Münster, 48149, Germany
| | - John Longinotto
- Department of Epigenetics, Max Planck Institute of Immunobiology and Epigenetics, Freiburg, 78108, Germany
| | - Steffen Heyne
- Department of Epigenetics, Max Planck Institute of Immunobiology and Epigenetics, Freiburg, 78108, Germany
| | - Beate Czepukojc
- Department of Pharmacy, Pharmaceutical Biology, University of Saarland, Saarbrücken, 66041, Germany
| | - Sonja M Kessler
- Department of Pharmacy, Pharmaceutical Biology, University of Saarland, Saarbrücken, 66041, Germany
- Department of Pharmacology and Toxicology for Natural Science, Institute of Pharmacy, Martin Luther University Halle-Wittenberg, Halle (Saale), 06120, Germany
| | - Alexandra K Kiemer
- Department of Pharmacy, Pharmaceutical Biology, University of Saarland, Saarbrücken, 66041, Germany
| | - Cristina Cadenas
- Leibniz-Institut für Arbeitsforschung (ifADo), Dortmund, 44139, Germany
| | - Laura Arrigoni
- Department of Epigenetics, Max Planck Institute of Immunobiology and Epigenetics, Freiburg, 78108, Germany
| | - Nina Gasparoni
- Department of Genetics, University of Saarland, Saarbrücken, 66123, Germany
| | - Thomas Manke
- Department of Epigenetics, Max Planck Institute of Immunobiology and Epigenetics, Freiburg, 78108, Germany
| | - Thomas Pap
- Institute of Musculoskeletal Medicine, University Hospital Münster, Münster, 48149, Germany
| | - John A Pospisilik
- Department of Epigenetics, Max Planck Institute of Immunobiology and Epigenetics, Freiburg, 78108, Germany
| | - Jan Hengstler
- Leibniz-Institut für Arbeitsforschung (ifADo), Dortmund, 44139, Germany
| | - Jörn Walter
- Department of Genetics, University of Saarland, Saarbrücken, 66123, Germany
| | - Sebastiaan H Meijsing
- Department of Computational Molecular Biology, Max Planck Institute for Molecular Genetics, Berlin, 14195, Germany
| | - Ho-Ryun Chung
- Otto-Warburg-Laboratory, Computational Epigenomics, Max Planck Institute for Molecular Genetics, Berlin, 14195, Germany
| | - Martin Vingron
- Department of Computational Molecular Biology, Max Planck Institute for Molecular Genetics, Berlin, 14195, Germany.
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Koenig U, Robenek H, Barresi C, Brandstetter M, Resch GP, Gröger M, Pap T, Hartmann C. Cell death induced autophagy contributes to terminal differentiation of skin and skin appendages. Autophagy 2019; 16:932-945. [PMID: 31379249 PMCID: PMC7144843 DOI: 10.1080/15548627.2019.1646552] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023] Open
Abstract
In the adult mammalian skin, cells are constantly renewing, differentiating and moving upward, to finally die in a yet not fully understood manner. Here, we provide evidence that macroautophagy/autophagy has a dual role in the skin. In addition to its known catabolic protective role as an evolutionary conserved upstream regulator of lysosomal degradation, we show that autophagy induced cell death (CDA) occurs in epithelial lineage-derived organs, such as the inter-follicular epidermis, the sebaceous- and the Harderian gland. By utilizing GFP-LC3 transgenic and ATG7-deficient mice, we show that CDA is initiated during terminal differentiation at a stage when the cells have become highly resistant to apoptosis. In these transitional cells, the Golgi compartment expands, which accounts for the formation of primary lysosomes, and the nucleus starts to condense. During CDA a burst of autophagosome formation is observed, first the endoplasmic reticulum (ER) is phagocytosed followed by autophagy of the nucleus. By this selective form of cell death, most of the cytoplasmic organelles are degraded, but structural proteins remain intact. In the absence of autophagy, consequently, parts of the ER, ribosomes, and chromatin remain. A burst of autophagy was stochastically observed in single cells of the epidermis and collectively in larger areas of ductal cells, arguing for a coordinated induction. We conclude that autophagy is an integral part of cell death in keratinocyte lineage cells and participates in their terminal cell fate. Abbreviations: Atg7: autophagy related 7; BECN1: beclin 1; CDA: cell death-induced autophagy; Cre: Cre-recombinase; DAPI: 4′,6-diamidino-2-phenylindole; ER: endoplasmatic reticulum; GFP: green fluorescent protein; HaGl: haderian gland; IVL: involucrin; KRT14: keratin 14; LD: lipid droplet; LSM: laser scanning microscope; MAP1LC3/LC3: microtubule-associated protein 1 light chain 3; PN: perinuclear space; RB: residual body; rER: rough endoplasmatic reticulum; SB: sebum; SG-SC: stratum granulosum – stratum corneum; SGl: sebaceous gland; SQSTM1: sequestosome 1; TEM: transmission electron microscopy; TUNEL: terminal deoxynucleotidyl transferase dUTP nick end labelling.
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Affiliation(s)
- Ulrich Koenig
- Institute of Musculoskeletal Medicine, Dept. Molecular Medicine, University Hospital Münster, Westfälische Wilhelms-Universität Münster, Münster, Germany.,Previous Address: Research Division of Biology and Pathobiology of the Skin, Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Horst Robenek
- Institute of Musculoskeletal Medicine, Dept. Bone and Skeletal Research, University Hospital Münster, Westfälische Wilhelms-Universität Münster, Münster, Germany
| | - Caterina Barresi
- Previous Address: Research Division of Biology and Pathobiology of the Skin, Department of Dermatology, Medical University of Vienna, Vienna, Austria.,Current Address: Children´s Cancer Research Institute, Vienna, Austria
| | - Marlene Brandstetter
- Electron Microscopy Facility, Vienna Biocenter Core Facilities GmbH, Vienna, Austria
| | - Guenter P Resch
- Electron Microscopy Facility, Vienna Biocenter Core Facilities GmbH, Vienna, Austria.,Current Address: Nexperion e.U.-Solutions for Electron Microscopy, Vienna, Austria
| | - Marion Gröger
- Imaging Unit, Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Thomas Pap
- Institute of Musculoskeletal Medicine, Dept. Molecular Medicine, University Hospital Münster, Westfälische Wilhelms-Universität Münster, Münster, Germany
| | - Christine Hartmann
- Institute of Musculoskeletal Medicine, Dept. Bone and Skeletal Research, University Hospital Münster, Westfälische Wilhelms-Universität Münster, Münster, Germany
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27
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Bonelli M, Dalwigk K, Platzer A, Olmos Calvo I, Hayer S, Niederreiter B, Holinka J, Sevelda F, Pap T, Steiner G, Superti-Furga G, Smolen JS, Kiener HP, Karonitsch T. IRF1 is critical for the TNF-driven interferon response in rheumatoid fibroblast-like synoviocytes : JAKinibs suppress the interferon response in RA-FLSs. Exp Mol Med 2019; 51:1-11. [PMID: 31285419 PMCID: PMC6802656 DOI: 10.1038/s12276-019-0267-6] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 02/20/2019] [Accepted: 03/11/2019] [Indexed: 12/28/2022] Open
Abstract
Rheumatoid arthritis (RA) is an autoimmune disease characterized by persistent synovial inflammation. The major drivers of synovial inflammation are cytokines and chemokines. Among these molecules, TNF activates fibroblast-like synoviocytes (FLSs), which leads to the production of inflammatory mediators. Here, we show that TNF regulates the expression of the transcription factor interferon regulatory factor 1 (IRF1) in human FLSs as well as in a TNF transgenic arthritis mouse model. Transcriptomic analyses of IRF1-deficient, TNF-stimulated FLSs define the interferon (IFN) pathway as a major target of IRF1. IRF1 expression is associated with the expression of IFNβ, which leads to the activation of the JAK-STAT pathway. Blocking the JAK-STAT pathway with the Janus kinase inhibitor (JAKinib) baricitinib or tofacitinib reduces the expression of IFN-regulated genes (IRGs) in TNF-activated FLSs. Therefore, we conclude that TNF induces a distinct inflammatory cascade, in which IRGs are key elements, in FLSs. The IFN-signature might be a promising biomarker for the efficient and personalized use of new treatment strategies for RA, such as JAKinibs.
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Affiliation(s)
- Michael Bonelli
- Division of Rheumatology, Department of Medicine 3, Medical University of Vienna, 1090, Vienna, Austria
| | - Karolina Dalwigk
- Division of Rheumatology, Department of Medicine 3, Medical University of Vienna, 1090, Vienna, Austria
| | - Alexander Platzer
- Division of Rheumatology, Department of Medicine 3, Medical University of Vienna, 1090, Vienna, Austria
| | - Isabel Olmos Calvo
- Division of Rheumatology, Department of Medicine 3, Medical University of Vienna, 1090, Vienna, Austria
| | - Silvia Hayer
- Division of Rheumatology, Department of Medicine 3, Medical University of Vienna, 1090, Vienna, Austria
| | - Birgit Niederreiter
- Division of Rheumatology, Department of Medicine 3, Medical University of Vienna, 1090, Vienna, Austria
| | - Johannes Holinka
- Department of Orthopaedics, Medical University of Vienna, 1090, Vienna, Austria
| | - Florian Sevelda
- Department of Orthopaedics, Medical University of Vienna, 1090, Vienna, Austria
| | - Thomas Pap
- Institute of Musculoskeletal Medicine, University Hospital Muenster, 48149, Muenster, Germany
| | - Günter Steiner
- Division of Rheumatology, Department of Medicine 3, Medical University of Vienna, 1090, Vienna, Austria.,Ludwig Boltzmann Institute for Arthritis and Rehabilitation, Vienna, Austria
| | - Giulio Superti-Furga
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, 1090, Vienna, Austria
| | - Josef S Smolen
- Division of Rheumatology, Department of Medicine 3, Medical University of Vienna, 1090, Vienna, Austria
| | - Hans P Kiener
- Division of Rheumatology, Department of Medicine 3, Medical University of Vienna, 1090, Vienna, Austria
| | - Thomas Karonitsch
- Division of Rheumatology, Department of Medicine 3, Medical University of Vienna, 1090, Vienna, Austria.
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Diller M, Frommer K, Dankbar B, Tarner I, Hülser ML, Tsiklauri L, Hasseli R, Sauerbier M, Pap T, Rehart S, Müller-Ladner U, Neumann E. The activin-follistatin anti-inflammatory cycle is deregulated in synovial fibroblasts. Arthritis Res Ther 2019; 21:144. [PMID: 31182152 PMCID: PMC6558802 DOI: 10.1186/s13075-019-1926-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Accepted: 05/26/2019] [Indexed: 12/25/2022] Open
Abstract
Background Activin A and follistatin exhibit immunomodulatory functions, thus affecting autoinflammatory processes as found in rheumatoid arthritis (RA). The impact of both proteins on the behavior of synovial fibroblasts (SF) in RA as well as in osteoarthritis (OA) is unknown. Methods Immunohistochemical analyses of synovial tissue for expression of activin A and follistatin were performed. The influence of RASF overexpressing activin A on cartilage invasion in a SCID mouse model was examined. RASF and OASF were stimulated with either IL-1β or TNFα in combination with or solely with activin A, activin AB, or follistatin. Protein secretion was measured by ELISA and mRNA expression by RT-PCR. Smad signaling was confirmed by western blot. Results In human RA synovial tissue, the number of activin A-positive cells as well as its extracellular presence was higher than in the OA synovium. Single cells within the tissue expressed follistatin in RA and OA synovial tissue. In the SCID mouse model, activin A overexpression reduced RASF invasion. In human RASF, activin A was induced by IL-1β and TNFα. Activin A slightly increased IL-6 release by unstimulated RASF, but decreased protein and mRNA levels of follistatin. Conclusion The observed decrease of cartilage invasion by RASF overexpressing activin A in the SCID mouse model appears to be mediated by an interaction between activin/follistatin and other local cells indirectly affecting RASF because activin A displayed certain pro-inflammatory effects on RASF. Activin A even inhibits production and release of follistatin in RASF and therefore prevents itself from being blocked by its inhibitory binding protein follistatin in the local inflammatory joint environment. Electronic supplementary material The online version of this article (10.1186/s13075-019-1926-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Magnus Diller
- Department of Rheumatology and Clinical Immunology, Justus Liebig University Giessen, Campus Kerckhoff, Bad Nauheim, Benekestr: 2-8, 61231, Bad Nauheim, Germany
| | - Klaus Frommer
- Department of Rheumatology and Clinical Immunology, Justus Liebig University Giessen, Campus Kerckhoff, Bad Nauheim, Benekestr: 2-8, 61231, Bad Nauheim, Germany
| | - Berno Dankbar
- Institute of Experimental Musculoskeletal Medicine, University Hospital Münster, Münster, Germany
| | - Ingo Tarner
- Department of Rheumatology and Clinical Immunology, Justus Liebig University Giessen, Campus Kerckhoff, Bad Nauheim, Benekestr: 2-8, 61231, Bad Nauheim, Germany
| | - Marie-Lisa Hülser
- Department of Rheumatology and Clinical Immunology, Justus Liebig University Giessen, Campus Kerckhoff, Bad Nauheim, Benekestr: 2-8, 61231, Bad Nauheim, Germany
| | - Lali Tsiklauri
- Department of Rheumatology and Clinical Immunology, Justus Liebig University Giessen, Campus Kerckhoff, Bad Nauheim, Benekestr: 2-8, 61231, Bad Nauheim, Germany
| | - Rebecca Hasseli
- Department of Rheumatology and Clinical Immunology, Justus Liebig University Giessen, Campus Kerckhoff, Bad Nauheim, Benekestr: 2-8, 61231, Bad Nauheim, Germany
| | - Michael Sauerbier
- Department of Plastic, Hand and Reconstructive Surgery, BGU Frankfurt, Frankfurt, Germany
| | - Thomas Pap
- Institute of Experimental Musculoskeletal Medicine, University Hospital Münster, Münster, Germany
| | - Stefan Rehart
- Department of Orthopaedics and Trauma Surgery, Agaplesion Markus Hospital, Frankfurt, Germany
| | - Ulf Müller-Ladner
- Department of Rheumatology and Clinical Immunology, Justus Liebig University Giessen, Campus Kerckhoff, Bad Nauheim, Benekestr: 2-8, 61231, Bad Nauheim, Germany
| | - Elena Neumann
- Department of Rheumatology and Clinical Immunology, Justus Liebig University Giessen, Campus Kerckhoff, Bad Nauheim, Benekestr: 2-8, 61231, Bad Nauheim, Germany.
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29
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30
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Fröhling M, Tepasse P, Intemann J, Sambale M, Sherwood J, Paruzel P, Tiemeyer NM, Nowacki TM, Brückner M, Mennigen R, Lügering A, Echtermeyer F, Pap T, Stratis A, Bettenworth D. Syndecan-4 Modulates Epithelial Gut Barrier Function and Epithelial Regeneration in Experimental Colitis. Inflamm Bowel Dis 2018; 24:2579-2589. [PMID: 30053064 DOI: 10.1093/ibd/izy248] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2017] [Indexed: 12/11/2022]
Abstract
BACKGROUND The transmembrane heparan sulfate proteoglycan Syndecan-4 (Sdc4) plays an important role in the regulation of various inflammatory disorders. However, the involvement of Sdc4 in intestinal inflammation remains unknown. Therefore, we assessed the impact of Sdc4 deficiency on experimental colitis and epithelial wound healing in vitro and in vivo. METHODS Dextran sulfate sodium (DSS)-induced colitis was monitored in wild type and Sdc4-deficient (Sdc4-/-) mice by assessment of body weight, histology, inflammatory cellular infiltration, and colon length. Syndecan-4 expression was measured by immunohistochemistry, Western blot, and quantitative real-time PCR. Epithelial permeability was evaluated by Evans blue measurements, Western blot, and immunohistological analysis of tight junction protein expression. Impact of Sdc4 on epithelial wound healing was determined by scratch assay in vitro and by colonoscopy following mechanical wounding in vivo. RESULTS In Sdc4-/- mice, colitis-like symptoms including severe weight loss, shortened colon length, histological damage, and invasion of macrophages and granulocytes were markedly aggravated compared with wild type (WT) animals. Moreover, colonic epithelial permeability in Sdc4-/- mice was enhanced, while tight junction protein expression decreased. Furthermore, Sdc4-/- colonic epithelial cells had lower cell proliferation and migration rates which presented in vivo as a prolonged intestinal wound healing phenotype. Strikingly, in WT animals, Sdc4 expression was reduced during colitis and was elevated during recovery. CONCLUSIONS The loss of Sdc4 aggravates the course of experimental colitis, potentially through impaired epithelial cell integrity and regeneration. In view of the development of current treatment approaches involving Sdc4 inhibition for inflammatory disorders like arthritis, particular caution should be taken in case of adverse gastrointestinal side-effects.
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Affiliation(s)
- Mareike Fröhling
- Institute of Musculoskeletal Medicine, University Hospital Münster, Münster, Germany
| | - Phil Tepasse
- Department of Medicine B, Gastroenterology and Hepatology, University Hospital Münster, Münster, Germany
| | - Johanna Intemann
- Institute of Musculoskeletal Medicine, University Hospital Münster, Münster, Germany
| | - Meike Sambale
- Institute of Musculoskeletal Medicine, University Hospital Münster, Münster, Germany
| | - Joanna Sherwood
- Institute of Musculoskeletal Medicine, University Hospital Münster, Münster, Germany
| | - Peter Paruzel
- Institute of Musculoskeletal Medicine, University Hospital Münster, Münster, Germany
| | - Nina-Marie Tiemeyer
- Institute of Musculoskeletal Medicine, University Hospital Münster, Münster, Germany
| | - Tobias M Nowacki
- Department of Medicine B, Gastroenterology and Hepatology, University Hospital Münster, Münster, Germany
| | - Markus Brückner
- Department of Medicine B, Gastroenterology and Hepatology, University Hospital Münster, Münster, Germany
| | - Rudolf Mennigen
- Department of General Surgery, University Hospital Münster, Münster, Germany
| | | | - Frank Echtermeyer
- Department of Anesthesiology and Intensive Care Medicine, Medical University Hannover, Hannover, Germany
| | - Thomas Pap
- Institute of Musculoskeletal Medicine, University Hospital Münster, Münster, Germany
| | - Athanasios Stratis
- Institute of Musculoskeletal Medicine, University Hospital Münster, Münster, Germany
| | - Dominik Bettenworth
- Department of Medicine B, Gastroenterology and Hepatology, University Hospital Münster, Münster, Germany
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31
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Harrach S, Barz V, Pap T, Pavenstädt H, Schlatter E, Edemir B, Distler J, Ciarimboli G, Bertrand J. Notch Signaling Activity Determines Uptake and Biological Effect of Imatinib in Systemic Sclerosis Dermal Fibroblasts. J Invest Dermatol 2018; 139:439-447. [PMID: 30273596 DOI: 10.1016/j.jid.2018.08.021] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Revised: 08/14/2018] [Accepted: 08/21/2018] [Indexed: 02/08/2023]
Abstract
Tyrosine kinase inhibitors have emerged as a therapeutic option for rheumatic diseases such as systemic sclerosis (SSc). Because tyrosine kinases like c-Abl kinase are important for fibroblast activation and fibrosis development in SSc, the c-Abl inhibitor imatinib was proposed for SSc treatment. Transporters for organic cations have become increasingly recognized as an important determinant for uptake and efficacy of tyrosine kinase inhibitors. Therefore, we investigated the role of organic cation transporters in the uptake of imatinib. Moreover, the influence of important SSc pathogenetic factors, like PDGF and Notch pathway activation on these uptake processes, has been studied. We showed that organic cation transporters OCT1-3, novel organic cation transporters OCTN1/2, and the multidrug and toxin extrusion protein MATE1 are expressed in healthy dermal and SSc fibroblasts. Decreased expression levels of MATE1 and decreased imatinib uptake were measured in SSc fibroblasts. In small interfering RNA experiments, MATE1 was identified as key transporter for imatinib uptake and biological effect in dermal fibroblasts. Furthermore, PDGF reduced imatinib uptake by decreasing MATE1 expression in SSc fibroblasts, but not in healthy fibroblasts. Blocking the Notch pathway in SSc fibroblasts increased MATE1 transporter expression and imatinib uptake. In conclusion, MATE1-mediated transport governs therapeutic efficacy of imatinib in SSc.
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Affiliation(s)
- Saliha Harrach
- Institute of Experimental Musculoskeletal Medicine, Department of Internal Medicine D, University Hospital Muenster, Germany; Experimental Nephrology, Department of Internal Medicine D, University Hospital Muenster, Germany
| | - Vivien Barz
- Experimental Nephrology, Department of Internal Medicine D, University Hospital Muenster, Germany
| | - Thomas Pap
- Institute of Experimental Musculoskeletal Medicine, Department of Internal Medicine D, University Hospital Muenster, Germany
| | - Hermann Pavenstädt
- Experimental Nephrology, Department of Internal Medicine D, University Hospital Muenster, Germany
| | - Eberhard Schlatter
- Experimental Nephrology, Department of Internal Medicine D, University Hospital Muenster, Germany
| | - Bayram Edemir
- Department of Internal Medicine IV, Hematology and Oncology, University Hospital Halle (Saale), Germany
| | - Jörg Distler
- Rheumatology and Immunology, Medical Clinic 3, University Hospital Erlangen, Erlangen, Germany
| | - Giuliano Ciarimboli
- Experimental Nephrology, Department of Internal Medicine D, University Hospital Muenster, Germany
| | - Jessica Bertrand
- Department of Orthopaedic Surgery, Otto-von-Guericke University Magdeburg, Germany.
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32
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Lee JY, Kang MJ, Choi JY, Park JS, Park JK, Lee EY, Lee EB, Pap T, Yi EC, Song YW. Apolipoprotein B binds to enolase-1 and aggravates inflammation in rheumatoid arthritis. Ann Rheum Dis 2018; 77:1480-1489. [PMID: 29997113 DOI: 10.1136/annrheumdis-2018-213444] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 06/13/2018] [Accepted: 06/17/2018] [Indexed: 11/04/2022]
Abstract
OBJECTIVE Immune cells from patients with rheumatoid arthritis (RA) express more enolase-1 (ENO1) on their surface than those from healthy subjects, and they elicit an enhanced inflammatory response. This study is aimed to identify the ligands of ENO1 that could promote inflammatory loops in vitro and enhance the arthritis severity in vivo. METHODS ENO1-binding proteins in RA synovial fluid were identified by mass spectromety, and affinity to ENO1 was evaluated by means of a ligand blotting and binding assay, surface plasmon resonance and confocal microscopy. Proinflammatory response by the interaction between ENO1 and apolipoprotein B (apoB) was tested in vitro and in vivo using peripheral blood mononuclear cells and a K/BxN serum transfer arthritis model and low-density lipoproteins receptor (LDLR) knockout mice. RESULTS ApoB in the synovid fluid of patients with RA was identified as a specific ligand to ENO1 with a higher affinity than plasminogen, a known ENO1 ligand. ApoB binding to ENO1 on monocytes elicited the production of tumour necrosis factor-α, interleukins (IL)-1β and IL-6 through both p38 mitogen-activated protein kinase and NF-κB pathways. In the K/BxN serum transfer arthritis model, administration of apoB increased the production of proinflammatory cytokines and exaggerated arthritis severity. The severity of K/BxN serum transfer arthritis in LDLR knockout mice was comparable with wild-type mice. CONCLUSIONS A key component of atherogenic lipids, apoB, aggravated arthritis by potentiating the inflammatory response via its interaction with ENO1 expressed on the surface of immune cells. This suggests a novel mechanism by which lipid metabolism regulates chronic inflammation in RA.
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Affiliation(s)
- Joo Youn Lee
- Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology and College of Medicine, Medical Research Center, Seoul National University, Seoul, South Korea
| | - Min Jueng Kang
- Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology and College of Medicine, Medical Research Center, Seoul National University, Seoul, South Korea
| | - Ji Yong Choi
- Division of Rheumatology, Department of Internal Medicine, College of Medicine, Seoul National University, Seoul, South Korea
| | - Ji Soo Park
- Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology and College of Medicine, Medical Research Center, Seoul National University, Seoul, South Korea
| | - Jin Kyun Park
- Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology and College of Medicine, Medical Research Center, Seoul National University, Seoul, South Korea.,Division of Rheumatology, Department of Internal Medicine, College of Medicine, Seoul National University, Seoul, South Korea
| | - Eun Young Lee
- Division of Rheumatology, Department of Internal Medicine, College of Medicine, Seoul National University, Seoul, South Korea
| | - Eun Bong Lee
- Division of Rheumatology, Department of Internal Medicine, College of Medicine, Seoul National University, Seoul, South Korea
| | - Thomas Pap
- Institute of Musculoskeletal Medicine, University Hospital Münster, Münster, Germany
| | - Eugene C Yi
- Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology and College of Medicine, Medical Research Center, Seoul National University, Seoul, South Korea
| | - Yeong Wook Song
- Department of Molecular Medicine and Biopharmaceutical Sciences, Graduate School of Convergence Science and Technology and College of Medicine, Medical Research Center, Seoul National University, Seoul, South Korea.,Division of Rheumatology, Department of Internal Medicine, College of Medicine, Seoul National University, Seoul, South Korea
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33
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Held A, Glas A, Dietrich L, Bollmann M, Brandstädter K, Grossmann TN, Lohmann CH, Pap T, Bertrand J. Targeting β-catenin dependent Wnt signaling via peptidomimetic inhibitors in murine chondrocytes and OA cartilage. Osteoarthritis Cartilage 2018; 26:818-823. [PMID: 29559252 DOI: 10.1016/j.joca.2018.02.908] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Revised: 02/21/2018] [Accepted: 02/27/2018] [Indexed: 02/02/2023]
Abstract
OBJECTIVE The canonical Wnt signaling pathway has been shown to be involved in regulating chondrocyte hypertrophic differentiation during Osteoarthritis (OA). The aim of this study was to test the therapeutic potential of two stapled peptide canonical Wnt inhibitors - SAH-Bcl9 and StAx-35R - in preventing Wnt induced cartilage changes in OA. METHODS Primary neonatal murine chondrocytes and cartilage explants from OA patients undergoing total joint replacement for knee OA, were used for microscopy to determine matrix and cell penetrating capacity of fluorescein isothiocyanate FITC-tagged SAH-Bcl9 and StAx-35R peptides. T cell factor/lymphoid enhancer-binding factor (TCF/LEF) reporter assays were used to monitor the inhibition of Wnt3a induced β-catenin signaling by each peptide. Changes in chondrocyte phenotypic marker gene expression were analyzed by qRT PCR. RESULTS Both peptides localized intercellular in primary murine chondrocytes and cartilage explants. They inhibited Wnt3a induced TCF/LEF promoter activity in primary murine chondrocytes. Both inhibitors did not rescue Wnt3a altered expression of chondrocyte phenotypic genes (Sox9, Col2a1, Acan) and hypertrophy marker gene (Col10a1) at high doses (100 ng/ml). Upon application of 10 ng/ml Wnt3a, StAx-35R partially reversed the Wnt effect on Sox9 and Col2a1 gene expression. Both peptides, however, reversed the downregulation of SOX9 and aggrecan (ACAN), and decrease of COL10A1 gene expression in preserved human OA cartilage explants. CONCLUSION These data indicate that blockade of canonical Wnt signaling might be a therapeutic strategy to treat early OA cases and protect further cartilage degradation by preventing chondrocyte hypertrophic differentiation.
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Affiliation(s)
- A Held
- Department of Orthopaedic Surgery, Otto-von-Guericke University, Magdeburg, Germany
| | - A Glas
- Chemical Genomics Centre of the Max-Planck Society, Dortmund, Germany
| | - L Dietrich
- Chemical Genomics Centre of the Max-Planck Society, Dortmund, Germany
| | - M Bollmann
- Department of Orthopaedic Surgery, Otto-von-Guericke University, Magdeburg, Germany
| | - K Brandstädter
- Institute of Forensic Medicine, University Hospital Halle, Remote Office Magdeburg, Halle (Saale), Magdeburg, Germany
| | - T N Grossmann
- Chemical Genomics Centre of the Max-Planck Society, Dortmund, Germany; Department of Chemistry and Pharmaceutical Science, VU University Amsterdam, Amsterdam, The Netherlands
| | - C H Lohmann
- Department of Orthopaedic Surgery, Otto-von-Guericke University, Magdeburg, Germany
| | - T Pap
- Institute of Experimental Musculoskeletal Medicine, University Hospital Münster, Münster, Germany
| | - J Bertrand
- Department of Orthopaedic Surgery, Otto-von-Guericke University, Magdeburg, Germany.
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34
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Karonitsch T, Kandasamy RK, Kartnig F, Herdy B, Dalwigk K, Niederreiter B, Holinka J, Sevelda F, Windhager R, Bilban M, Weichhart T, Säemann M, Pap T, Steiner G, Smolen JS, Kiener HP, Superti-Furga G. mTOR Senses Environmental Cues to Shape the Fibroblast-like Synoviocyte Response to Inflammation. Cell Rep 2018; 23:2157-2167. [PMID: 29768212 PMCID: PMC5972226 DOI: 10.1016/j.celrep.2018.04.044] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Revised: 02/02/2018] [Accepted: 04/11/2018] [Indexed: 12/25/2022] Open
Abstract
Accumulating evidence suggests that metabolic master regulators, including mTOR, regulate adaptive and innate immune responses. Resident mesenchymal tissue components are increasingly recognized as key effector cells in inflammation. Whether mTOR also controls the inflammatory response in fibroblasts is insufficiently studied. Here, we show that TNF signaling co-opts the mTOR pathway to shift synovial fibroblast (FLS) inflammation toward an IFN response. mTOR pathway activation is associated with decreased NF-κB-mediated gene expression (e.g., PTGS2, IL-6, and IL-8) but increased STAT1-dependent gene expression (e.g., CXCL11 and TNFSF13B). We further demonstrate how metabolic inputs, such as amino acids, impinge on TNF-mTORC1 signaling to differentially regulate pro-inflammatory signaling circuits. Our results define a critical role for mTOR in the regulation of the pro-inflammatory response in FLSs and unfold its pathogenic involvement in TNF-driven diseases, such as rheumatoid arthritis (RA).
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Affiliation(s)
- Thomas Karonitsch
- Division of Rheumatology, Department of Medicine 3, Medical University of Vienna, 1090 Vienna, Austria; CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, 1090 Vienna, Austria.
| | - Richard K Kandasamy
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, 1090 Vienna, Austria
| | - Felix Kartnig
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, 1090 Vienna, Austria
| | - Barbara Herdy
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, 1090 Vienna, Austria
| | - Karolina Dalwigk
- Division of Rheumatology, Department of Medicine 3, Medical University of Vienna, 1090 Vienna, Austria
| | - Birgit Niederreiter
- Division of Rheumatology, Department of Medicine 3, Medical University of Vienna, 1090 Vienna, Austria
| | - Johannes Holinka
- Department of Orthopaedics, Medical University of Vienna, 1090 Vienna, Austria
| | - Florian Sevelda
- Department of Orthopaedics, Medical University of Vienna, 1090 Vienna, Austria
| | - Reinhard Windhager
- Department of Orthopaedics, Medical University of Vienna, 1090 Vienna, Austria
| | - Martin Bilban
- Department of Laboratory Medicine, Medical University of Vienna, 1090 Vienna, Austria
| | - Thomas Weichhart
- Center of Pathobiochemistry and Genetics, Institute of Medical Genetics, Medical University of Vienna, 1090 Vienna, Austria
| | - Marcus Säemann
- Department of Medicine VI, Wilhelminenspital, 1160 Vienna, Austria; Sigmund Freud Private University, Medical School, 1020 Vienna, Austria
| | - Thomas Pap
- Institute of Musculoskeletal Medicine, University Hospital Muenster, 48149 Muenster, Germany
| | - Günter Steiner
- Division of Rheumatology, Department of Medicine 3, Medical University of Vienna, 1090 Vienna, Austria
| | - Josef S Smolen
- Division of Rheumatology, Department of Medicine 3, Medical University of Vienna, 1090 Vienna, Austria
| | - Hans P Kiener
- Division of Rheumatology, Department of Medicine 3, Medical University of Vienna, 1090 Vienna, Austria
| | - Giulio Superti-Furga
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, 1090 Vienna, Austria; Center for Physiology and Pharmacology, Medical University of Vienna, 1090 Vienna, Austria.
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Kamradt T, Amling M, Dankbar B, Dudeck A, Gunzer M, Ignatius A, Krönke G, Kubatzky K, Pap T, Prinz I, Schett G, Schinke T, Tuckermann J, Waisman A. [Mutual influence of immune system and bones]. Z Rheumatol 2018; 77:8-11. [PMID: 29675686 DOI: 10.1007/s00393-018-0454-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- T Kamradt
- Institut für Immunologie, Universitätsklinikum Jena, Leutragraben 3, 07743, Jena, Deutschland.
| | - M Amling
- Institut für Osteologie und Biomechanik, Universitätsklinikum Hamburg-Eppendorf, Martinistr. 52, 20246, Hamburg, Deutschland
| | - B Dankbar
- Institut für Muskuloskelettale Medizin, Albert-Schweitzer-Campus 1, Westfälische Wilhelms-Universität Münster, 48149, Münster, Deutschland
| | - A Dudeck
- Institut für Molekulare und Klinische Immunologie, Otto-von-Guericke-Universität, Leipziger Str. 44, 39120, Magdeburg, Deutschland
| | - M Gunzer
- Institut für Experimentelle Immunologie und Bildgebung, Universität Duisburg-Essen, Universitätsklinikum Essen, Hufelandstr. 55, 45141, Essen, Deutschland
| | - A Ignatius
- Institut für Unfallchirurgische Forschung und Biomechanik, Universität Ulm, Helmholtzstr. 14, 89081, Ulm, Deutschland
| | - G Krönke
- Medizinische Klinik 3 - Rheumatologie und Immunologie, Friedrich-Alexander Universität Erlangen - Nürnberg, Universitätsklinikum Erlangen, Ulmenweg 18, 91054, Erlangen, Deutschland
| | - K Kubatzky
- Medizinische Mikrobiologie und Hygiene, Universitätsklinikum Heidelberg, Im Neuenheimer Feld 324, 69120, Heidelberg, Deutschland
| | - T Pap
- Institut für Muskuloskelettale Medizin, Albert-Schweitzer-Campus 1, Westfälische Wilhelms-Universität Münster, 48149, Münster, Deutschland
| | - I Prinz
- Institut für Immunologie, Medizinische Hochschule Hannover, Carl-Neuberg-Str. 1, 30625, Hannover, Deutschland
| | - G Schett
- Medizinische Klinik 3 - Rheumatologie und Immunologie, Friedrich-Alexander Universität Erlangen - Nürnberg, Universitätsklinikum Erlangen, Ulmenweg 18, 91054, Erlangen, Deutschland
| | - T Schinke
- Institut für Osteologie und Biomechanik, Universitätsklinikum Hamburg-Eppendorf, Martinistr. 52, 20246, Hamburg, Deutschland
| | - J Tuckermann
- Institut für Molekulare Endokrinologie der Tiere, Universität Ulm, Helmholtzstr. 8/1, 89081, Ulm, Deutschland
| | - A Waisman
- Institut für Molekulare Medizin Mainz, Universitätsmedizin der Johannes Gutenberg-Universität Mainz, Langenbeckstr. 1, 55131, Mainz, Deutschland
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Vogl T, Stratis A, Wixler V, Völler T, Thurainayagam S, Jorch SK, Zenker S, Dreiling A, Chakraborty D, Fröhling M, Paruzel P, Wehmeyer C, Hermann S, Papantonopoulou O, Geyer C, Loser K, Schäfers M, Ludwig S, Stoll M, Leanderson T, Schultze JL, König S, Pap T, Roth J. Autoinhibitory regulation of S100A8/S100A9 alarmin activity locally restricts sterile inflammation. J Clin Invest 2018; 128:1852-1866. [PMID: 29611822 DOI: 10.1172/jci89867] [Citation(s) in RCA: 139] [Impact Index Per Article: 23.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Accepted: 02/08/2018] [Indexed: 01/22/2023] Open
Abstract
Autoimmune diseases, such as psoriasis and arthritis, show a patchy distribution of inflammation despite systemic dysregulation of adaptive immunity. Thus, additional tissue-derived signals, such as danger-associated molecular patterns (DAMPs), are indispensable for manifestation of local inflammation. S100A8/S100A9 complexes are the most abundant DAMPs in many autoimmune diseases. However, regulatory mechanisms locally restricting DAMP activities are barely understood. We now unravel for the first time, to our knowledge, a mechanism of autoinhibition in mice and humans restricting S100-DAMP activity to local sites of inflammation. Combining protease degradation, pull-down assays, mass spectrometry, and targeted mutations, we identified specific peptide sequences within the second calcium-binding EF-hands triggering TLR4/MD2-dependent inflammation. These binding sites are free when S100A8/S100A9 heterodimers are released at sites of inflammation. Subsequently, S100A8/S100A9 activities are locally restricted by calcium-induced (S100A8/S100A9)2 tetramer formation hiding the TLR4/MD2-binding site within the tetramer interphase, thus preventing undesirable systemic effects. Loss of this autoinhibitory mechanism in vivo results in TNF-α-driven fatal inflammation, as shown by lack of tetramer formation in crossing S100A9-/- mice with 2 independent TNF-α-transgene mouse strains. Since S100A8/S100A9 is the most abundant DAMP in many inflammatory diseases, specifically blocking the TLR4-binding site of active S100 dimers may represent a promising approach for local suppression of inflammatory diseases, avoiding systemic side effects.
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Affiliation(s)
- Thomas Vogl
- Institute of Immunology, and.,Interdisciplinary Center for Clinical Research, University of Münster, Münster, Germany
| | | | - Viktor Wixler
- Institute of Molecular Virology, Zentrum für Molekularbiologie der Entzündung (ZMBE), University Hospital Münster, Münster, Germany
| | | | | | | | | | - Alena Dreiling
- Interdisciplinary Center for Clinical Research, University of Münster, Münster, Germany
| | | | | | | | | | - Sven Hermann
- Interdisciplinary Center for Clinical Research, University of Münster, Münster, Germany.,European Institute for Molecular Imaging, University of Münster, Münster, Germany
| | - Olympia Papantonopoulou
- Genomics and Immunoregulation, Life & Medical Sciences-Institute (LIMES-Institute), University of Bonn, Bonn, Germany
| | - Christiane Geyer
- Interdisciplinary Center for Clinical Research, University of Münster, Münster, Germany.,Department of Clinical Radiology
| | - Karin Loser
- Interdisciplinary Center for Clinical Research, University of Münster, Münster, Germany.,Department of Dermatology.,Cells-in-Motion Cluster of Excellence, and
| | - Michael Schäfers
- Interdisciplinary Center for Clinical Research, University of Münster, Münster, Germany.,European Institute for Molecular Imaging, University of Münster, Münster, Germany.,Cells-in-Motion Cluster of Excellence, and
| | - Stephan Ludwig
- Institute of Molecular Virology, Zentrum für Molekularbiologie der Entzündung (ZMBE), University Hospital Münster, Münster, Germany.,Cells-in-Motion Cluster of Excellence, and
| | - Monika Stoll
- Institute of Human Genetics, Genetic Epidemiology, University of Muenster, Muenster, Germany
| | - Tomas Leanderson
- Department of Experimental Medical Science, Immunology Group, Lund University, Lund, Sweden
| | - Joachim L Schultze
- Genomics and Immunoregulation, Life & Medical Sciences-Institute (LIMES-Institute), University of Bonn, Bonn, Germany
| | - Simone König
- Interdisciplinary Center for Clinical Research, University of Münster, Münster, Germany
| | - Thomas Pap
- Institute of Musculoskeletal Medicine and
| | - Johannes Roth
- Institute of Immunology, and.,Interdisciplinary Center for Clinical Research, University of Münster, Münster, Germany.,Cells-in-Motion Cluster of Excellence, and
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Karonitsch T, Beckmann D, Dalwigk K, Niederreiter B, Studenic P, Byrne RA, Holinka J, Sevelda F, Korb-Pap A, Steiner G, Smolen JS, Pap T, Kiener HP. Targeted inhibition of Janus kinases abates interfon gamma-induced invasive behaviour of fibroblast-like synoviocytes. Rheumatology (Oxford) 2017; 57:572-577. [DOI: 10.1093/rheumatology/kex426] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Indexed: 11/14/2022] Open
Affiliation(s)
- Thomas Karonitsch
- Division of Rheumatology, Department of Medicine III, Medical University of Vienna, Vienna, Austria
| | - Denise Beckmann
- Institute of Experimental Musculoskeletal Medicine, University Hospital Münster, Münster, Germany
| | - Karolina Dalwigk
- Division of Rheumatology, Department of Medicine III, Medical University of Vienna, Vienna, Austria
| | - Birgit Niederreiter
- Division of Rheumatology, Department of Medicine III, Medical University of Vienna, Vienna, Austria
| | - Paul Studenic
- Division of Rheumatology, Department of Medicine III, Medical University of Vienna, Vienna, Austria
| | - Ruth A Byrne
- Division of Rheumatology, Department of Medicine III, Medical University of Vienna, Vienna, Austria
| | - Johannes Holinka
- Department of Orthopaedics, Medical University of Vienna, Vienna, Austria
| | - Florian Sevelda
- Department of Orthopaedics, Medical University of Vienna, Vienna, Austria
| | - Adelheid Korb-Pap
- Institute of Experimental Musculoskeletal Medicine, University Hospital Münster, Münster, Germany
| | - Günter Steiner
- Division of Rheumatology, Department of Medicine III, Medical University of Vienna, Vienna, Austria
| | - Josef S Smolen
- Division of Rheumatology, Department of Medicine III, Medical University of Vienna, Vienna, Austria
| | - Thomas Pap
- Institute of Experimental Musculoskeletal Medicine, University Hospital Münster, Münster, Germany
| | - Hans P Kiener
- Division of Rheumatology, Department of Medicine III, Medical University of Vienna, Vienna, Austria
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Milstrey A, Wieskoetter B, Hinze D, Grueneweller N, Stange R, Pap T, Raschke M, Garcia P. Dose-dependent effect of parathyroid hormone on fracture healing and bone formation in mice. J Surg Res 2017; 220:327-335. [PMID: 29180199 DOI: 10.1016/j.jss.2017.07.019] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2017] [Revised: 06/10/2017] [Accepted: 07/17/2017] [Indexed: 10/19/2022]
Abstract
BACKGROUND Parathyroid hormone (PTH) is the only clinically approved osteoanabolic drug for osteoporosis treatment. However, PTH is not established for the treatment of fracture healing, and doses of PTH diverge significantly between different studies. We hypothesized that the effect of PTH on promoting fracture healing and bone formation is dose dependent. MATERIALS AND METHODS In vivo, mice were treated with PTH (10, 40, and 200 μg/kg) in a closed femoral fracture model. Fracture healing was analyzed after 4 weeks. The fourth lumbar vertebra was analyzed to assess systemic effects. In addition, osteoblasts from calvaria of mice were treated in vitro with PTH doses of 10-5-50 nM, and their differentiation was analyzed after 26 days. RESULTS In vivo, PTH dose-dependently stimulated bone formation in the fracture callus and the vertebral body. However, PTH treatment did not increase biomechanical stiffness of the fractured femora in a dose-dependent manner. The increased bone formation in the 200 μg/kg group was associated with a depletion of osteoclasts, indicating diminished bone remodeling. Of interest, in vitro, we observed diminished mineralization with the highest doses of PTH in osteoblast cultures. CONCLUSIONS PTH dose-dependently stimulates bone formation in vivo. However, during fracture healing, this did not result in a dose-dependent increase of the mechanical stiffness of the fracture callus. Taken together, our in vivo and in vitro data indicate that the dose-dependent effects of PTH during fracture healing are based on the actions on multiple cell types, thereby influencing not only bone formation but also osteoclastic callus remodeling.
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Affiliation(s)
- Alexander Milstrey
- Department of Trauma-, Hand- and Reconstructive Surgery, Westfaelische Wilhelms University, Muenster, Germany.
| | - Britta Wieskoetter
- Department of Trauma-, Hand- and Reconstructive Surgery, Westfaelische Wilhelms University, Muenster, Germany
| | - Daniel Hinze
- Institute for Experimental Muscoloskeletal Medicine, Westfaelische Wilhelms University, Muenster, Germany
| | - Niklas Grueneweller
- Department of Trauma-, Hand- and Reconstructive Surgery, Westfaelische Wilhelms University, Muenster, Germany
| | - Richard Stange
- Department of Trauma-, Hand- and Reconstructive Surgery, Westfaelische Wilhelms University, Muenster, Germany
| | - Thomas Pap
- Institute for Experimental Muscoloskeletal Medicine, Westfaelische Wilhelms University, Muenster, Germany
| | - Michael Raschke
- Department of Trauma-, Hand- and Reconstructive Surgery, Westfaelische Wilhelms University, Muenster, Germany
| | - Patric Garcia
- Department of Trauma-, Hand- and Reconstructive Surgery, Westfaelische Wilhelms University, Muenster, Germany
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Sanchez C, Bay-Jensen AC, Pap T, Dvir-Ginzberg M, Quasnichka H, Barrett-Jolley R, Mobasheri A, Henrotin Y. Chondrocyte secretome: a source of novel insights and exploratory biomarkers of osteoarthritis. Osteoarthritis Cartilage 2017; 25:1199-1209. [PMID: 28232143 DOI: 10.1016/j.joca.2017.02.797] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Revised: 01/31/2017] [Accepted: 02/14/2017] [Indexed: 02/02/2023]
Abstract
The extracellular matrix (ECM) of articular cartilage is comprised of complex networks of proteins and glycoproteins, all of which are expressed by its resident cell, the chondrocyte. Cartilage is a unique tissue given its complexity and ability to resist repeated load and deformation. The mechanisms by which articular cartilage maintains its integrity throughout our lifetime is not fully understood, however there are numerous regulatory pathways known to govern ECM turnover in response to mechanical stimuli. To further our understanding of this field, we envision that proteomic analysis of the secretome will provide information on how the chondrocyte remodels the surrounding ECM in response to load, in addition to providing information on the metabolic state of the cell. In this review, we attempt to summarize the recent mass spectrometry-based proteomic discoveries in healthy and diseased cartilage and chondrocytes, to facilitate the discovery of novel biomarkers linked to degenerative pathologies, such as osteoarthritis (OA).
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Affiliation(s)
- C Sanchez
- Bone and Cartilage Research Unit, Arthropôle Liège, University of Liège, CHU Sart-Tilman, Belgium; The D-BOARD European Consortium for Biomarker Discovery.
| | - A-C Bay-Jensen
- The D-BOARD European Consortium for Biomarker Discovery; Department of Rheumatology, Biomarkers and Research, Nordic Bioscience, Herlev Hovedgade 207, 2730, Herlev, Denmark.
| | - T Pap
- The D-BOARD European Consortium for Biomarker Discovery; Institute of Experimental Musculoskeletal Medicine, University Hospital Munster, Domagkstrasse 3, D-48149, Munster, Germany.
| | - M Dvir-Ginzberg
- The D-BOARD European Consortium for Biomarker Discovery; Institute of Dental Sciences, Faculty of Dental Medicine, Hebrew University of Jerusalem, P.O. Box 12272, Jerusalem, 91120, Israel.
| | - H Quasnichka
- The D-BOARD European Consortium for Biomarker Discovery; Department of Veterinary Pre-Clinical Sciences, School of Veterinary Medicine, University of Surrey, Guildford, GU2 7AL, United Kingdom.
| | - R Barrett-Jolley
- The D-BOARD European Consortium for Biomarker Discovery; Department of Musculoskeletal Biology, Institute of Ageing and Chronic Disease, Faculty of Health & Life Sciences, University of Liverpool, Liverpool, United Kingdom.
| | - A Mobasheri
- The D-BOARD European Consortium for Biomarker Discovery; Department of Veterinary Pre-Clinical Sciences, School of Veterinary Medicine, University of Surrey, Guildford, GU2 7AL, United Kingdom; Faculty of Health and Medical Sciences, Duke of Kent Building, University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom; Arthritis Research UK Centre for Sport, Exercise and Osteoarthritis, Queen's Medical Centre, Nottingham, NG7 2UH, United Kingdom; Center of Excellence in Genomic Medicine Research (CEGMR), King Fahd Medical Research Center (KFMRC), Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, 21589, Saudi Arabia.
| | - Y Henrotin
- Bone and Cartilage Research Unit, Arthropôle Liège, University of Liège, CHU Sart-Tilman, Belgium; The D-BOARD European Consortium for Biomarker Discovery.
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Abstract
Rheumatoid arthritis (RA) is an autoimmune disease characterized by chronic inflammation, local and systemic bone loss and a lack of compensatory bone repair. Fibroblast-like synoviocytes (FLS) are the most abundant cells of the stroma and a key population in autoimmune diseases such as RA. An increasing body of evidence suggests that these cells play not only an important role in chronic inflammation and synovial hyperplasia, but also impact bone remodelling. Under inflammatory conditions FLS release inflammatory cytokines, regulate bone destruction and formation and communicate with immune cells to control bone homeostasis. Other stromal cells, such as osteoblasts and terminally differentiated osteoblasts, termed osteocytes, are also involved in the regulation of bone homeostasis and are dysregulated during inflammation. This review highlights our current understanding of how stromal cells influence the balance between bone formation and bone destruction. Increasing our understanding of these processes is critical to enable the development of novel therapeutic strategies with which to treat bone loss in RA.
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Affiliation(s)
- C. Wehmeyer
- Institute of Inflammation and Ageing (IIA), University of Birmingham, Queen Elizabeth HospitalBirminghamUK
| | - T. Pap
- Institute of Experimental Musculoskeletal Medicine, University Hospital MuensterMuensterGermany
| | - C. D. Buckley
- Institute of Inflammation and Ageing (IIA), University of Birmingham, Queen Elizabeth HospitalBirminghamUK
| | - A. J. Naylor
- Institute of Inflammation and Ageing (IIA), University of Birmingham, Queen Elizabeth HospitalBirminghamUK
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Abstract
Homeostatic bone remodelling becomes disturbed in a variety of pathologic conditions that affect the skeleton, including inflammatory diseases. Rheumatoid arthritis is the prototype of an inflammatory arthritis characterised by chronic inflammation, progressive cartilage destruction and focal bone erosions and is a prime example for a disease with disturbed bone homeostasis. The inflammatory milieu favours the recruitment and activation of osteoclasts, which have been found to be the cells that are primarily responsible for bone erosions in many animal models of inflammatory arthritis. Among the inflammatory modulators, members of the transforming growth factor (TGF)-β super family are shown to be important regulators in osteoclastogenesis with Smad-mediated signalling being crucial for inducing osteoclast differentiation. These findings have opened a new field for exploring mechanisms of osteoclast differentiation under inflammatory conditions. Recent studies have shown that the TGF-β superfamily members TGF-β1, myostatin and activin A directly regulate osteoclast differentiation through mechanisms that depend on the RANKL–RANK interplay. These growth factors transduce their signals through type I and II receptor serine/threonine kinases, thereby activating the Smad pathway. In this review, we describe the impact of inflammation-induced Smad signalling in osteoclast development and subsequently bone erosion in rheumatoid arthritis.
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Affiliation(s)
- Michelle Fennen
- Institute of Experimental Musculoskeletal Medicine, Westfalian Wilhelms-University Münster, Münster, Germany
| | - Thomas Pap
- Institute of Experimental Musculoskeletal Medicine, Westfalian Wilhelms-University Münster, Münster, Germany
| | - Berno Dankbar
- Institute of Experimental Musculoskeletal Medicine, Westfalian Wilhelms-University Münster, Münster, Germany.
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Hawellek T, Hubert J, Hischke S, Krause M, Bertrand J, Pap T, Püschel K, Rüther W, Niemeier A. Articular cartilage calcification of the hip and knee is highly prevalent, independent of age but associated with histological osteoarthritis: evidence for a systemic disorder. Osteoarthritis Cartilage 2016; 24:2092-2099. [PMID: 27390030 DOI: 10.1016/j.joca.2016.06.020] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Revised: 06/12/2016] [Accepted: 06/27/2016] [Indexed: 02/02/2023]
Abstract
OBJECTIVES Based on the concept of a systemic predisposition for articular cartilage calcification (CC), the aim of this study was to determine the prevalence and amount of bilateral CC of hip and knee joints in an unselected sample cohort by high-resolution digital contact radiography (DCR) and to analyze the association of CC with histological OA. METHODS Both hip and knee joints of 87 donors (48 m and 39 f; mean age 62) were analyzed by DCR in this post-mortem study of an unselected cohort of donors. Histological OA (OARSI) of the main load bearing area of femoral heads and medial femoral condyles was determined. RESULTS The prevalence of CC of the femoral head was 96.6%, of the knee 94.3%. Bilateral calcification was detected in 79.3% of hips and 86.2% of knees. Concomitant CC of all four joints was detected in 69.0% of donors. There was no difference between the amount of CC of hips and knees (P = 0.47). The amount of CC of any given hip or knee correlated with that of the contralateral hip (rs = 0.54, P < 0.001) or knee (rs = 0.50, P < 0.001). There was a correlation between the amount of CC and histological OA (hips rs = 0.48, P < 0.001, knees rs = 0.30, P = 0.004), but not between CC and age (hips rs = -0.09, P = 0.42; knees rs = 0.10, P = 0.34). CONCLUSIONS These data support the concept that articular CC occurs as the result of a systemic disorder. CC appears to be an early element of hip and knee OA pathogenesis independent of age.
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Affiliation(s)
- T Hawellek
- Department of Orthopaedics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | - J Hubert
- Department of Orthopaedics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | - S Hischke
- Department of Medical Biometry and Epidemiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | - M Krause
- Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | - J Bertrand
- Institute of Experimental Musculoskeletal Medicine, University Hospital Münster, Münster, Germany.
| | - T Pap
- Institute of Experimental Musculoskeletal Medicine, University Hospital Münster, Münster, Germany.
| | - K Püschel
- Department of Legal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | - W Rüther
- Department of Orthopaedics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| | - A Niemeier
- Department of Orthopaedics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
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Korb-Pap A, Bertrand J, Sherwood J, Pap T. Stable activation of fibroblasts in rheumatic arthritis—causes and consequences. Rheumatology (Oxford) 2016; 55:ii64-ii67. [DOI: 10.1093/rheumatology/kew347] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2015] [Revised: 08/23/2016] [Indexed: 11/15/2022] Open
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Hawellek T, Hubert J, Hischke S, Vettorazzi E, Wegscheider K, Bertrand J, Pap T, Krause M, Püschel K, Rüther W, Niemeier A. Articular cartilage calcification of the humeral head is highly prevalent and associated with osteoarthritis in the general population. J Orthop Res 2016; 34:1984-1990. [PMID: 26970411 DOI: 10.1002/jor.23227] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Accepted: 03/06/2016] [Indexed: 02/04/2023]
Abstract
Articular cartilage calcification is considered a pathological albeit incompletely understood process which is known to be associated with osteoarthritis of the knee and hip. The goal of this study was to determine the prevalence of articular cartilage calcification of the shoulder as a non-weight-bearing joint and to analyze the interrelationship of calcification with age and histological severity of shoulder osteoarthritis in the general population. In a cross-sectional study of 180 humeral heads from 90 donors (n = 49 male, n = 41 female; mean age 62.7 years [20-93]), cartilage calcification of the humeral head was quantified by digital contact radiography (DCR). Histological OA grade (OARSI) was determined and structural equation modeling (SEM) was used to analyze the interrelationship of cartilage calcification, OARSI and age. The prevalence of articular cartilage calcification was 98.9% (95%CI: [93.96%, 99.97%]) and was independent of gender (p = 0.55). Cartilage calcification of one shoulder correlated significantly with that of the contralateral side (r = 0.61, 95%CI: [0.46, 0.73], p < 0.001). SEM demonstrated significant associations between histological OA grade and cartilage calcification (r = 0.55, p = 0.039), between histological OA grade and age (β = 0.59, p < 0.001) but not between age and cartilage calcification (β = 0.24, p = 0.116). In conclusion, the prevalence of shoulder cartilage calcification in the general population is higher than anticipated. The high prevalence, its concomitant bilateral manifestation and the association between the amount of cartilage calcification and OA severity, but not age, suggest that cartilage calcification is a systemically driven process with early onset in life and may be a causative factor in the pathogenesis of OA. © 2016 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 34:1984-1990, 2016.
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Affiliation(s)
- Thelonius Hawellek
- Department of Orthopaedics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Jan Hubert
- Department of Orthopaedics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Sandra Hischke
- Department of Medical Biometry and Epidemiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Eik Vettorazzi
- Department of Medical Biometry and Epidemiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Karl Wegscheider
- Department of Medical Biometry and Epidemiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Jessica Bertrand
- Institute of Experimental Musculoskeletal Medicine, University Hospital Münster, Münster, Germany
| | - Thomas Pap
- Institute of Experimental Musculoskeletal Medicine, University Hospital Münster, Münster, Germany
| | - Matthias Krause
- Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Klaus Püschel
- Department of Legal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Wolfgang Rüther
- Department of Orthopaedics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Andreas Niemeier
- Department of Orthopaedics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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Gronau T, Krüger K, Prein C, Aszodi A, Gronau I, Iozzo RV, Mooren FC, Clausen-Schaumann H, Bertrand J, Pap T, Bruckner P, Dreier R. Forced exercise-induced osteoarthritis is attenuated in mice lacking the small leucine-rich proteoglycan decorin. Ann Rheum Dis 2016; 76:442-449. [PMID: 27377816 DOI: 10.1136/annrheumdis-2016-209319] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Revised: 06/05/2016] [Accepted: 06/14/2016] [Indexed: 11/04/2022]
Abstract
OBJECTIVE Interterritorial regions of articular cartilage matrix are rich in decorin, a small leucine-rich proteoglycan and important structural protein, also involved in many signalling events. Decorin sequesters transforming growth factor β (TGFβ), thereby regulating its activity. Here, we analysed whether increased bioavailability of TGFβ in decorin-deficient (Dcn-/-) cartilage leads to changes in biomechanical properties and resistance to osteoarthritis (OA). METHODS Unchallenged knee cartilage was analysed by atomic force microscopy (AFM) and immunohistochemistry. Active transforming growth factor β-1 (TGFβ1) content within cultured chondrocyte supernatants was measured by ELISA. Quantitative real-time (RT)-PCR was used to analyse mRNA expression of glycosaminoglycan (GAG)-modifying enzymes in C28/I2 cells following TGFβ1 treatment. In addition, OA was induced in Dcn-/- and wild-type (WT) mice via forced exercise on a treadmill. RESULTS AFM analysis revealed a strikingly higher compressive stiffness in Dcn-/- than in WT cartilage. This was accompanied by increased negative charge and enhanced sulfation of GAG chains, but not by alterations in the levels of collagens or proteoglycan core proteins. In addition, decorin-deficient chondrocytes were shown to release more active TGFβ1. Increased TGFβ signalling led to enhanced Chst11 sulfotransferase expression inducing an increased negative charge density of cartilage matrix. These negative charges might attract more water resulting in augmented compressive stiffness of the tissue. Therefore, decorin-deficient mice developed significantly less OA after forced exercise than WT mice. CONCLUSIONS Our study demonstrates that the disruption of decorin-restricted TGFβ signalling leads to higher stiffness of articular cartilage matrix, rendering joints more resistant to OA. Therefore, the loss of an important structural component can improve cartilage homeostasis.
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Affiliation(s)
- Tobias Gronau
- Institute of Experimental Musculoskeletal Medicine, University Hospital Münster, Münster, Germany.,Institute of Physiological Chemistry and Pathobiochemistry, University of Münster, Münster, Germany
| | - Karsten Krüger
- Institute of Sports Medicine, Justus-Liebig University Giessen, Giessen, Germany
| | - Carina Prein
- Center for Applied Tissue Engineering and Regenerative Medicine (CANTER), Munich University of Applied Sciences and Center for Nanoscience (CeNS), Munich, Germany
| | - Attila Aszodi
- Laboratory of Experimental Surgery and Regenerative Medicine, Department of General, Trauma and Reconstruction Surgery, Ludwig-Maximilians-University, Munich, Germany
| | - Isabel Gronau
- Institute of Physiological Chemistry and Pathobiochemistry, University of Münster, Münster, Germany
| | - Renato V Iozzo
- Department of Pathology, Anatomy and Cell Biology, Thomas Jefferson University, Philadelphia, USA
| | - Frank C Mooren
- Institute of Sports Medicine, Justus-Liebig University Giessen, Giessen, Germany
| | - Hauke Clausen-Schaumann
- Center for Applied Tissue Engineering and Regenerative Medicine (CANTER), Munich University of Applied Sciences and Center for Nanoscience (CeNS), Munich, Germany
| | - Jessica Bertrand
- Institute of Experimental Musculoskeletal Medicine, University Hospital Münster, Münster, Germany.,Department of Orthopaedic Surgery, Otto-von-Guericke University, Magdeburg, Germany
| | - Thomas Pap
- Institute of Experimental Musculoskeletal Medicine, University Hospital Münster, Münster, Germany
| | - Peter Bruckner
- Institute of Physiological Chemistry and Pathobiochemistry, University of Münster, Münster, Germany
| | - Rita Dreier
- Institute of Physiological Chemistry and Pathobiochemistry, University of Münster, Münster, Germany
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Papp E, Kardos E, Toth L, Buttl A, Pap T, Repa I, Kerkovits G. PS136 Stemi Caused by a Non-Calcified Plaque Described on Coronary CTA One Day Earlier in a Young Patient. Glob Heart 2016. [DOI: 10.1016/j.gheart.2016.03.123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Wehmeyer C, Frank S, Beckmann D, Böttcher M, Cromme C, König U, Fennen M, Held A, Paruzel P, Hartmann C, Stratis A, Korb-Pap A, Kamradt T, Kramer I, van den Berg W, Kneissel M, Pap T, Dankbar B. Sclerostin inhibition promotes TNF-dependent inflammatory joint destruction. Sci Transl Med 2016; 8:330ra35. [PMID: 27089204 DOI: 10.1126/scitranslmed.aac4351] [Citation(s) in RCA: 97] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Accepted: 01/29/2016] [Indexed: 12/16/2022]
Abstract
Sclerostin, an inhibitor of the Wnt/β-catenin pathway, has anti-anabolic effects on bone formation by negatively regulating osteoblast differentiation. Mutations in the human sclerostin gene (SOST) lead to sclerosteosis with progressive skeletal overgrowth, whereas sclerostin-deficient (Sost(-/-)) mice exhibit increased bone mass and strength. Therefore, antibody-mediated inhibition of sclerostin is currently being clinically evaluated for the treatment of postmenopausal osteoporosis in humans. We report that in chronic TNFα (tumor necrosis factor α)-dependent arthritis, fibroblast-like synoviocytes constitute a major source of sclerostin and that either the lack of sclerostin or its antibody-mediated inhibition leads to an acceleration of rheumatoid arthritis (RA)-like disease in human TNFα transgenic (hTNFtg) mice with enhanced pannus formation and joint destruction. Inhibition of sclerostin also failed to improve clinical signs and joint destruction in the partially TNFα-dependent glucose-6-phosphate isomerase-induced arthritis mouse model, but ameliorated disease severity in K/BxN serum transfer-induced arthritis mouse model, which is independent of TNF receptor signaling, thus suggesting a specific role for sclerostin in TNFα signaling. Sclerostin effectively blocked TNFα- but not interleukin-1-induced activation of p38, a key step in arthritis development, pointing to a previously unrealized protective role of sclerostin in TNF-mediated chronic inflammation. The possibility of anti-sclerostin antibody treatment worsening clinical RA outcome under chronic TNFα-dependent inflammatory conditions in mice means that caution should be taken both when considering such treatment for inflammatory bone loss in RA and when using anti-sclerostin antibodies in patients with TNFα-dependent comorbidities.
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Affiliation(s)
- Corinna Wehmeyer
- Institute of Experimental Musculoskeletal Medicine, University Hospital Muenster, 48149 Muenster, Germany
| | - Svetlana Frank
- Institute of Experimental Musculoskeletal Medicine, University Hospital Muenster, 48149 Muenster, Germany
| | - Denise Beckmann
- Institute of Experimental Musculoskeletal Medicine, University Hospital Muenster, 48149 Muenster, Germany
| | - Martin Böttcher
- Institute of Immunology, University Hospital Jena, 07743 Jena, Germany
| | - Christoph Cromme
- Institute of Experimental Musculoskeletal Medicine, University Hospital Muenster, 48149 Muenster, Germany
| | - Ulrich König
- Institute of Experimental Musculoskeletal Medicine, University Hospital Muenster, 48149 Muenster, Germany
| | - Michelle Fennen
- Institute of Experimental Musculoskeletal Medicine, University Hospital Muenster, 48149 Muenster, Germany
| | - Annelena Held
- Institute of Experimental Musculoskeletal Medicine, University Hospital Muenster, 48149 Muenster, Germany
| | - Peter Paruzel
- Institute of Experimental Musculoskeletal Medicine, University Hospital Muenster, 48149 Muenster, Germany
| | - Christine Hartmann
- Institute of Experimental Musculoskeletal Medicine, University Hospital Muenster, 48149 Muenster, Germany
| | - Athanasios Stratis
- Institute of Experimental Musculoskeletal Medicine, University Hospital Muenster, 48149 Muenster, Germany
| | - Adelheid Korb-Pap
- Institute of Experimental Musculoskeletal Medicine, University Hospital Muenster, 48149 Muenster, Germany
| | - Thomas Kamradt
- Institute of Immunology, University Hospital Jena, 07743 Jena, Germany
| | - Ina Kramer
- Novartis Institutes for BioMedical Research, 4002 Basel, Switzerland
| | - Wim van den Berg
- Nijmegen Centre for Molecular Life Sciences, 86525 Nijmegen, Netherlands
| | - Michaela Kneissel
- Novartis Institutes for BioMedical Research, 4002 Basel, Switzerland
| | - Thomas Pap
- Institute of Experimental Musculoskeletal Medicine, University Hospital Muenster, 48149 Muenster, Germany.
| | - Berno Dankbar
- Institute of Experimental Musculoskeletal Medicine, University Hospital Muenster, 48149 Muenster, Germany
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Alnawaiseh M, Rosentreter A, Hillmann A, Alex AF, Niekämper D, Heiduschka P, Pap T, Eter N. OCT angiography in the mouse: A novel evaluation method for vascular pathologies of the mouse retina. Exp Eye Res 2016; 145:417-423. [PMID: 26946073 DOI: 10.1016/j.exer.2016.02.012] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Revised: 02/26/2016] [Accepted: 02/29/2016] [Indexed: 11/26/2022]
Abstract
PURPOSE To investigate the application of optical coherence tomography (OCT) angiography in the retinas of healthy mice and to evaluate choroidal neovascularization (CNV) in a mouse model of laser-induced CNV. METHODS C57BL/6J mice aged 18-25 weeks were examined using the spectral-domain optical coherence tomography device RTVue XR Avanti (Optovue, Inc, Fremont, California, USA). Blood flow in different retinal layers was detected using the split-spectrum amplitude-decorrelation angiography algorithm. Fluorescein angiography (FA) images were obtained using the Heidelberg Spectralis device (Heidelberg, Germany). RESULTS Using the RTVue XR Avanti, we were able to obtain high-quality OCT angiography images of normal vasculature in the superficial, deep capillary and choriocapillary layers in laser-treated mice and untreated controls. Whereas no blood flow was detectable in the outer retina of untreated mice, blood flow and hence neovascular vessels were found in laser-treated mice. CONCLUSIONS OCT angiography can clearly visualize the normal vascular plexus in the different retinal layers in the mouse retina and choroid. With OCT angiography, it is possible to verify the choroidal neovascularization induced by laser treatment. Thus, OCT angiography is a helpful imaging tool for non-invasive, in vivo evaluation of laser-induced CNV in the mouse.
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Affiliation(s)
- Maged Alnawaiseh
- Dept. of Ophthalmology, University of Muenster Medical Center, Muenster, Germany; Institute of Experimental Musculoskeletal Medicine, University of Muenster Medical Center, Muenster, Germany.
| | - André Rosentreter
- Dept. of Ophthalmology, University of Muenster Medical Center, Muenster, Germany; Dept. of Ophthalmology, University of Würzburg, Würzburg, Germany
| | - Anja Hillmann
- Institute of Experimental Musculoskeletal Medicine, University of Muenster Medical Center, Muenster, Germany
| | - Anne F Alex
- Dept. of Ophthalmology, University of Muenster Medical Center, Muenster, Germany
| | - Daniel Niekämper
- Dept. of Ophthalmology, University of Muenster Medical Center, Muenster, Germany
| | - Peter Heiduschka
- Dept. of Ophthalmology, University of Muenster Medical Center, Muenster, Germany
| | - Thomas Pap
- Institute of Experimental Musculoskeletal Medicine, University of Muenster Medical Center, Muenster, Germany
| | - Nicole Eter
- Dept. of Ophthalmology, University of Muenster Medical Center, Muenster, Germany
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Beckmann D, Hillen J, Heitzmann M, Hansen U, Kiener HP, Chew CS, Butz S, Vestweber D, Pavenstädt H, Galla HJ, Pap T, Korb-Pap A. A10.15 LASP-1 modifies ECM-synovial fibroblast interactions in a mouse model of ra. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-209124.187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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