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Zhang L, Pan Y, Pan F, Huang S, Wang F, Zeng Z, Chen H, Tian X. MATN4 as a target gene of HIF-1α promotes the proliferation and metastasis of osteosarcoma. Aging (Albany NY) 2024; 16:10462-10476. [PMID: 38889378 PMCID: PMC11236324 DOI: 10.18632/aging.205941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 03/03/2024] [Indexed: 06/20/2024]
Abstract
BACKGROUND Osteosarcoma is a highly malignant bone tumor that exhibits rapid growth and early metastasis. Hypoxia plays a pivotal role in promoting the proliferation and metastasis of osteosarcoma through a series of molecular events, which are partially mediated and regulated by HIF-1α. However, the regulatory network associated with HIF-1α in osteosarcoma remains limited. Therefore, the objective of this study was to identify critical hypoxia-associated genes and investigate their effects and molecular mechanisms in osteosarcoma cells. METHODS Through bioinformatics analysis, matrilin-4 (MATN4) was identified as a crucial gene associated with hypoxia. The expression of MATN4 and HIF-1α was assessed using immunohistochemistry, RT-qPCR, and western blotting. The proliferative capacity of osteosarcoma cells was assessed through the utilization of CCK-8, EDU staining, and colony formation assays. The effects of MATN4 on the mobility of OS cells were evaluated using wound-healing assays and transwell assays. The interaction between MATN4 and HIF-1α was detected through chromatin immunoprecipitation. RESULTS MATN4 is overexpressed in osteosarcoma tissue and cells, particularly in osteosarcoma cells with high metastatic potential. Knockdown of MATN4 inhibits the proliferation, migration, and invasion abilities of osteosarcoma cells and reverses the promoting effects of hypoxia on these functions. Additionally, HIF-1α binds to MATN4 and upregulates its expression. Interestingly, knockdown of HIF-1α reduces the stimulatory effects of MATN4 overexpression on the proliferation, migration, and invasion of osteosarcoma cells under hypoxic conditions. CONCLUSIONS Taken together, our results suggest that MATN4 is regulated by HIF-1α and confers a more aggressive phenotype on OS cells. This evidence suggests that MATN4 may act as a potential target for OS diagnosis and treatment.
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Affiliation(s)
- Lu Zhang
- School of Clinical Medicine, Guizhou Medical University, Guiyang 550000, Guizhou, China
| | - Yujie Pan
- Department of Orthopedics, The Affiliated Hospital of Guizhou Medical University, Guiyang 550000, Guizhou, China
- Department of Traumatic Orthopedics, The Affiliated Hospital of Guizhou Medical University, Guiyang 550000, Guizhou, China
| | - Feng Pan
- Department of Bone and Joint Surgery, Beijing Jishuitan Hospital Guizhou Hospital, Guiyang 550000, Guizhou, China
| | - Songsong Huang
- Department of Pathology, The Afflicted Hospital of Guizhou Medical University, Guiyang 550000, Guizhou, China
| | - Fengyan Wang
- School of Clinical Medicine, Guizhou Medical University, Guiyang 550000, Guizhou, China
| | - Zhirui Zeng
- Transformation Engineering Research Center of Chronic Disease Diagnosis and Treatment, Guizhou Medical University, Guiyang 550000, China
| | - Houping Chen
- Department of Orthopedics, Guiyang Maternal and Child Health-Care Hospital, Guiyang 550000, China
| | - Xiaobin Tian
- School of Clinical Medicine, Guizhou Medical University, Guiyang 550000, Guizhou, China
- Department of Orthopedics, The Affiliated Hospital of Guizhou Medical University, Guiyang 550000, Guizhou, China
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2
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Rapp AE, Zaucke F. Cartilage extracellular matrix-derived matrikines in osteoarthritis. Am J Physiol Cell Physiol 2023; 324:C377-C394. [PMID: 36571440 DOI: 10.1152/ajpcell.00464.2022] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Osteoarthritis (OA) is among the most frequent diseases of the musculoskeletal system. Degradation of cartilage extracellular matrix (ECM) is a hallmark of OA. During the degradation process, intact/full-length proteins and proteolytic fragments are released which then might induce different downstream responses via diverse receptors, therefore leading to different biological consequences. Collagen type II and the proteoglycan aggrecan are the most abundant components of the cartilage ECM. However, over the last decades, a large number of minor components have been identified and for some of those, a role in the manifold processes associated with OA has already been demonstrated. To date, there is still no therapy able to halt or cure OA. A better understanding of the matrikine landscape occurring with or even preceding obvious degenerative changes in joint tissues is needed and might help to identify molecules that could serve as biomarkers, druggable targets, or even be blueprints for disease modifying drug OA drugs. For this narrative review, we screened PubMed for relevant literature in the English language and summarized the current knowledge regarding the function of selected ECM molecules and the derived matrikines in the context of cartilage and OA.
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Affiliation(s)
- Anna E Rapp
- Dr. Rolf M. Schwiete Research Unit for Osteoarthritis, Department of Orthopedics (Friedrichsheim), University Hospital Frankfurt, Goethe University, Frankfurt am Main, Germany
| | - Frank Zaucke
- Dr. Rolf M. Schwiete Research Unit for Osteoarthritis, Department of Orthopedics (Friedrichsheim), University Hospital Frankfurt, Goethe University, Frankfurt am Main, Germany
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3
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Wagner N, Rapp AE, Braun S, Ehnert M, Imhof T, Koch M, Jenei-Lanzl Z, Zaucke F, Meurer A. Generation of Matrix Degradation Products Using an In Vitro MMP Cleavage Assay. Int J Mol Sci 2022; 23:ijms23116245. [PMID: 35682922 PMCID: PMC9181598 DOI: 10.3390/ijms23116245] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 05/25/2022] [Accepted: 05/28/2022] [Indexed: 02/04/2023] Open
Abstract
Matrix metalloproteinases (MMPs) play crucial roles in tissue homeostasis and pathologies by remodeling the extracellular matrix. Previous studies have demonstrated the biological activities of MMP-derived cleavage products. Furthermore, specific fragments can serve as biomarkers. Therefore, an in vitro cleavage assay to identify substrates and characterize cleavage patterns could provide important insight in disease-relevant mechanisms and the identification of novel biomarkers. In the pathogenesis of osteoarthritis (OA), MMP-2, -8, -9 and -13 are of vital importance. However, it is unclear which protease can cleave which matrix component. To address this question, we established an in vitro cleavage assay using recombinantly expressed MMPs and the two cartilage matrix components, COMP and thrombospondin-4. We found a time- and concentration-dependent degradation and an MMP-specific cleavage pattern for both proteins. Cleavage products can now be enriched and purified to investigate their biological activity. To verify the in vivo relevance, we compared the in vitro cleavage patterns with serum and synovial fluid from OA patients and could indeed detect fragments of similar size in the human samples. The cleavage assay can be adapted to other MMPs and substrates, making it a valuable tool for many research fields.
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Affiliation(s)
- Niklas Wagner
- Dr. Rolf M. Schwiete Research Unit for Osteoarthritis, Department of Orthopedics (Friedrichsheim), University Hospital Frankfurt, Goethe University, 60528 Frankfurt am Main, Germany; (N.W.); (A.E.R.); (Z.J.-L.); (A.M.)
| | - Anna E. Rapp
- Dr. Rolf M. Schwiete Research Unit for Osteoarthritis, Department of Orthopedics (Friedrichsheim), University Hospital Frankfurt, Goethe University, 60528 Frankfurt am Main, Germany; (N.W.); (A.E.R.); (Z.J.-L.); (A.M.)
| | - Sebastian Braun
- Department of Orthopedics (Friedrichsheim), University Hospital Frankfurt, Goethe University, 60528 Frankfurt am Main, Germany; (S.B.); (M.E.)
| | - Markus Ehnert
- Department of Orthopedics (Friedrichsheim), University Hospital Frankfurt, Goethe University, 60528 Frankfurt am Main, Germany; (S.B.); (M.E.)
| | - Thomas Imhof
- Institute for Dental Research and Oral Musculoskeletal Biology, Center for Biochemistry, Faculty of Medicine, University Hospital Cologne, University of Cologne, 50931 Cologne, Germany; (T.I.); (M.K.)
| | - Manuel Koch
- Institute for Dental Research and Oral Musculoskeletal Biology, Center for Biochemistry, Faculty of Medicine, University Hospital Cologne, University of Cologne, 50931 Cologne, Germany; (T.I.); (M.K.)
| | - Zsuzsa Jenei-Lanzl
- Dr. Rolf M. Schwiete Research Unit for Osteoarthritis, Department of Orthopedics (Friedrichsheim), University Hospital Frankfurt, Goethe University, 60528 Frankfurt am Main, Germany; (N.W.); (A.E.R.); (Z.J.-L.); (A.M.)
| | - Frank Zaucke
- Dr. Rolf M. Schwiete Research Unit for Osteoarthritis, Department of Orthopedics (Friedrichsheim), University Hospital Frankfurt, Goethe University, 60528 Frankfurt am Main, Germany; (N.W.); (A.E.R.); (Z.J.-L.); (A.M.)
- Correspondence:
| | - Andrea Meurer
- Dr. Rolf M. Schwiete Research Unit for Osteoarthritis, Department of Orthopedics (Friedrichsheim), University Hospital Frankfurt, Goethe University, 60528 Frankfurt am Main, Germany; (N.W.); (A.E.R.); (Z.J.-L.); (A.M.)
- Department of Orthopedics (Friedrichsheim), University Hospital Frankfurt, Goethe University, 60528 Frankfurt am Main, Germany; (S.B.); (M.E.)
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4
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Andrés Sastre E, Zaucke F, Witte-Bouma J, van Osch GJ, Farrell E. Cartilage Oligomeric Matrix Protein-Derived Peptides Secreted by Cartilage Do Not Induce Responses Commonly Observed during Osteoarthritis. Cartilage 2021; 13:1229S-1236S. [PMID: 32993314 PMCID: PMC8721606 DOI: 10.1177/1947603520961170] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
OBJECTIVE To evaluate if 3 peptides derived from the cartilage oligomeric matrix protein (COMP), which wounded zones of cartilage secrete into synovial fluid, possess biological activity and might therefore be involved in the regulation of specific aspects of joint regeneration. METHODS The 3 peptides were produced by chemical synthesis and then tested in vitro for known functions of the COMP C-terminal domain from which they derive, and which are involved in osteoarthritis: transforming growth factor-β (TGF-β) signaling, vascular homeostasis, and inflammation. Results. None of the peptides affected the gene expression of COMP in osteochondral progenitor cells (P > 0.05). We observed no effects on the vascularization potential of endothelial cells (P > 0.05). In cultured synovium explants, no differences on the expression of catabolic enzymes or proinflammatory cytokines were found when peptides were added (P > 0.05). DISCUSSION AND CONCLUSIONS The 3 peptides tested do not regulate TGF-β signaling, angiogenesis and vascular tube formation, or synovial inflammation in vitro and therefore most likely do not play a major role in the disease process.
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Affiliation(s)
- Enrique Andrés Sastre
- Department of Oral and
Maxillofacial Surgery, Erasmus MC, University Medical Center Rotterdam, the
Netherlands
| | - Frank Zaucke
- Dr. Rolf Schwiete Research Unit
for Osteoarthritis, Orthopaedic University Hospital Friedrichsheim,
Frankfurt, Germany
| | - Janneke Witte-Bouma
- Department of Oral and
Maxillofacial Surgery, Erasmus MC, University Medical Center Rotterdam, the
Netherlands
| | - Gerjo J.V.M van Osch
- Department of Orthopaedics and
Department of Otorhinolaryngology, Erasmus MC University Medical Center,
Rotterdam, the Netherlands
| | - Eric Farrell
- Department of Oral and
Maxillofacial Surgery, Erasmus MC, University Medical Center Rotterdam, the
Netherlands
- Eric Farrell, Department of Oral and
Maxillofacial Surgery, Erasmus MC, University Medical Center
Rotterdam, nl Ee1618b, Wytemaweg 80, 3015 CN Rotterdam, 3000 CA, the
Netherlands.
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5
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Ye L, Jin W. Identification of lncRNA-associated competing endogenous RNA networks for occurrence and prognosis of gastric carcinoma. J Clin Lab Anal 2021; 35:e24028. [PMID: 34704289 PMCID: PMC8649378 DOI: 10.1002/jcla.24028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Revised: 09/13/2021] [Accepted: 09/14/2021] [Indexed: 12/24/2022] Open
Abstract
Background Gastric cancer (GC) is one of the common digestive malignancies worldwide and causes a severe public health issue. So far, the underlying mechanisms of GC are largely unclear. Thus, we aim to identify the long non‐coding RNA (lncRNA)‐associated competing endogenous RNA (ceRNA) for GC. Methods TCGA database was downloaded and used for the identification of differentially expressed (DE) lncRNAs, miRNAs, and mRNAs, respectively. Then, the ceRNA network was constructed via multiple online datasets and approaches. In addition, various in vitro assays were carried out to validate the effect of certain hub lncRNAs. Results We constructed a ceRNA network, including 76 lncRNAs, 18 miRNAs, and 159 mRNAs, which involved multiple critical pathways. Next, univariate and multivariate analysis demonstrated 11 lncRNAs, including LINC02731, MIR99AHG, INHBA‐AS1, CCDC144NL‐AS1, VLDLR‐AS1, LIFR‐AS1, A2M‐AS1, LINC01537, and LINC00702, and were associated with OS, and nine of those lncRNAs were considered as hub lncRNAs involved in the sub‐ceRNA network. The in vitro assay indicated two lncRNAs, INHBA‐AS1 and CCDC144NL‐AS1, which were positively related to the GC aggressive features, including proliferation, invasion, and migration. Conclusions We identified nine hub lncRNAs and the associated ceRNA network related to the prognosis of GC, and then validated two out of them as promising oncogenes in GC.
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Affiliation(s)
- Lianmin Ye
- Department of Intensive Care, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Wumin Jin
- Department of Reproductive Medicine Centre, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
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6
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Grässel S, Zaucke F, Madry H. Osteoarthritis: Novel Molecular Mechanisms Increase Our Understanding of the Disease Pathology. J Clin Med 2021; 10:jcm10091938. [PMID: 33946429 PMCID: PMC8125020 DOI: 10.3390/jcm10091938] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 04/26/2021] [Accepted: 04/27/2021] [Indexed: 12/12/2022] Open
Abstract
Although osteoarthritis (OA) is the most common musculoskeletal condition that causes significant health and social problems worldwide, its exact etiology is still unclear. With an aging and increasingly obese population, OA is becoming even more prevalent than in previous decades. Up to 35% of the world’s population over 60 years of age suffers from symptomatic (painful, disabling) OA. The disease poses a tremendous economic burden on the health-care system and society for diagnosis, treatment, sick leave, rehabilitation, and early retirement. Most patients also experience sleep disturbances, reduced capability for exercising, lifting, and walking and are less capable of working, and maintaining an independent lifestyle. For patients, the major problem is disability, resulting from joint tissue destruction and pain. So far, there is no therapy available that effectively arrests structural deterioration of cartilage and bone or is able to successfully reverse any of the existing structural defects. Here, we elucidate novel concepts and hypotheses regarding disease progression and pathology, which are relevant for understanding underlying the molecular mechanisms as a prerequisite for future therapeutic approaches. Emphasis is placed on topographical modeling of the disease, the role of proteases and cytokines in OA, and the impact of the peripheral nervous system and its neuropeptides.
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Affiliation(s)
- Susanne Grässel
- Department of Orthopaedic Surgery, Experimental Orthopaedics, Centre for Medical Biotechnology (ZMB), Bio Park 1, University of Regensburg, 93053 Regensburg, Germany
- Correspondence:
| | - Frank Zaucke
- Dr. Rolf M. Schwiete Research Unit for Osteoarthritis, Orthopedic University Hospital Friedrichsheim, 60528 Frankfurt am Main, Germany;
| | - Henning Madry
- Center of Experimental Orthopaedics, Saarland University, 66421 Homburg, Germany;
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7
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Li X, Liu Y, Liu Q, Wang S, Ma Y, Jin Q. Recombinant human irisin regulated collagen II, matrix metalloproteinase-13 and the Wnt/β-catenin and NF-κB signaling pathways in interleukin-1β-induced human SW1353 cells. Exp Ther Med 2020; 19:2879-2886. [PMID: 32256772 PMCID: PMC7086223 DOI: 10.3892/etm.2020.8562] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Accepted: 11/27/2019] [Indexed: 12/20/2022] Open
Abstract
Osteoarthritis (OA) is a degenerative joint disease that seriously affects the quality of life of patients. Irisin has been reported to regulate bone metabolism via the cellular autocrine mechanism and play a protective role in rat OA. In the present study, a SW1353 chondrosarcoma cell line was treated with interleukin (IL)-1β and irisin. The present study evaluated cell viability, expression levels of collagen II (Col II) and matrix metalloproteinase-13 (MMP-13), and activity of the Wnt/β-catenin and NF-κB signaling pathways in treated SW1353 cells. The present results suggested that IL-1β could decrease Col II expression and increase MMP-13 expression at both the mRNA and protein levels, and also activate the Wnt/β-catenin and NF-κB signaling pathways in SW1353 cells. By contrast, irisin was identified to reverse the effects of IL-1β in IL-1β-induced SW1353 cells. The present results suggested that irisin treatment may have a cartilage-protective role in an IL-1β-induced SW1353 cell model.
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Affiliation(s)
- Xiaojun Li
- The Third Orthopedic Department, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750001, P.R. China
| | - Yibin Liu
- The Third Orthopedic Department, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750001, P.R. China
| | - Qiang Liu
- The Third Orthopedic Department, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750001, P.R. China
| | - Sa Wang
- General Clinical College, Ningxia Medical University, College of Medicine, Yinchuan, Ningxia 750004, P.R. China
| | - Yang Ma
- The Third Orthopedic Department, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750001, P.R. China
| | - Qunhua Jin
- The Third Orthopedic Department, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750001, P.R. China
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8
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Li P, Fleischhauer L, Nicolae C, Prein C, Farkas Z, Saller MM, Prall WC, Wagener R, Heilig J, Niehoff A, Clausen-Schaumann H, Alberton P, Aszodi A. Mice Lacking the Matrilin Family of Extracellular Matrix Proteins Develop Mild Skeletal Abnormalities and Are Susceptible to Age-Associated Osteoarthritis. Int J Mol Sci 2020; 21:ijms21020666. [PMID: 31963938 PMCID: PMC7013758 DOI: 10.3390/ijms21020666] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 01/10/2020] [Accepted: 01/15/2020] [Indexed: 12/14/2022] Open
Abstract
Matrilins (MATN1, MATN2, MATN3 and MATN4) are adaptor proteins of the cartilage extracellular matrix (ECM), which bridge the collagen II and proteoglycan networks. In humans, dominant-negative mutations in MATN3 lead to various forms of mild chondrodysplasias. However, single or double matrilin knockout mice generated previously in our laboratory do not show an overt skeletal phenotype, suggesting compensation among the matrilin family members. The aim of our study was to establish a mouse line, which lacks all four matrilins and analyze the consequence of matrilin deficiency on endochondral bone formation and cartilage function. Matn1-4−/− mice were viable and fertile, and showed a lumbosacral transition phenotype characterized by the sacralization of the sixth lumbar vertebra. The development of the appendicular skeleton, the structure of the growth plate, chondrocyte differentiation, proliferation, and survival were normal in mutant mice. Biochemical analysis of knee cartilage demonstrated moderate alterations in the extractability of the binding partners of matrilins in Matn1-4−/− mice. Atomic force microscopy (AFM) revealed comparable compressive stiffness but higher collagen fiber diameters in the growth plate cartilage of quadruple mutant compared to wild-type mice. Importantly, Matn1-4−/− mice developed more severe spontaneous osteoarthritis at the age of 18 months, which was accompanied by changes in the biomechanical properties of the articular cartilage. Interestingly, Matn4−/− mice also developed age-associated osteoarthritis suggesting a crucial role of MATN4 in maintaining the stability of the articular cartilage. Collectively, our data provide evidence that matrilins are important to protect articular cartilage from deterioration and are involved in the specification of the vertebral column.
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Affiliation(s)
- Ping Li
- Experimental Surgery and Regenerative Medicine (ExperiMed), Department of General, Trauma and Reconstructive Surgery, Munich University Hospital, Ludwig-Maximilians-University, 80336 Munich, Germany; (P.L.); (L.F.); (C.P.); (Z.F.); (M.M.S.); (W.C.P.); (P.A.)
| | - Lutz Fleischhauer
- Experimental Surgery and Regenerative Medicine (ExperiMed), Department of General, Trauma and Reconstructive Surgery, Munich University Hospital, Ludwig-Maximilians-University, 80336 Munich, Germany; (P.L.); (L.F.); (C.P.); (Z.F.); (M.M.S.); (W.C.P.); (P.A.)
- Center for Applied Tissue Engineering and Regenerative Medicine, Munich University of Applied Sciences, 80533 Munich, Germany;
- Center for NanoScience, Ludwig-Maximilians University Munich, 80799 Munich, Germany
| | - Claudia Nicolae
- Department of Molecular Medicine, Max Planck Institute for Biochemistry, 82152 Martinsried, Germany;
| | - Carina Prein
- Experimental Surgery and Regenerative Medicine (ExperiMed), Department of General, Trauma and Reconstructive Surgery, Munich University Hospital, Ludwig-Maximilians-University, 80336 Munich, Germany; (P.L.); (L.F.); (C.P.); (Z.F.); (M.M.S.); (W.C.P.); (P.A.)
- Center for Applied Tissue Engineering and Regenerative Medicine, Munich University of Applied Sciences, 80533 Munich, Germany;
| | - Zsuzsanna Farkas
- Experimental Surgery and Regenerative Medicine (ExperiMed), Department of General, Trauma and Reconstructive Surgery, Munich University Hospital, Ludwig-Maximilians-University, 80336 Munich, Germany; (P.L.); (L.F.); (C.P.); (Z.F.); (M.M.S.); (W.C.P.); (P.A.)
| | - Maximilian Michael Saller
- Experimental Surgery and Regenerative Medicine (ExperiMed), Department of General, Trauma and Reconstructive Surgery, Munich University Hospital, Ludwig-Maximilians-University, 80336 Munich, Germany; (P.L.); (L.F.); (C.P.); (Z.F.); (M.M.S.); (W.C.P.); (P.A.)
| | - Wolf Christian Prall
- Experimental Surgery and Regenerative Medicine (ExperiMed), Department of General, Trauma and Reconstructive Surgery, Munich University Hospital, Ludwig-Maximilians-University, 80336 Munich, Germany; (P.L.); (L.F.); (C.P.); (Z.F.); (M.M.S.); (W.C.P.); (P.A.)
| | - Raimund Wagener
- Center for Molecular Medicine, University of Cologne, 50923 Cologne, Germany;
- Center for Biochemistry, Faculty of Medicine, University of Cologne, 50931 Cologne, Germany;
| | - Juliane Heilig
- Center for Biochemistry, Faculty of Medicine, University of Cologne, 50931 Cologne, Germany;
- Cologne Center for Musculoskeletal Biomechanics, Faculty of Medicine and University Hospital of Cologne, 50931 Cologne, Germany;
| | - Anja Niehoff
- Cologne Center for Musculoskeletal Biomechanics, Faculty of Medicine and University Hospital of Cologne, 50931 Cologne, Germany;
- Institute of Biomechanics and Orthopaedics, German Sport University Cologne, 50933 Cologne, Germany
| | - Hauke Clausen-Schaumann
- Center for Applied Tissue Engineering and Regenerative Medicine, Munich University of Applied Sciences, 80533 Munich, Germany;
- Center for NanoScience, Ludwig-Maximilians University Munich, 80799 Munich, Germany
| | - Paolo Alberton
- Experimental Surgery and Regenerative Medicine (ExperiMed), Department of General, Trauma and Reconstructive Surgery, Munich University Hospital, Ludwig-Maximilians-University, 80336 Munich, Germany; (P.L.); (L.F.); (C.P.); (Z.F.); (M.M.S.); (W.C.P.); (P.A.)
| | - Attila Aszodi
- Experimental Surgery and Regenerative Medicine (ExperiMed), Department of General, Trauma and Reconstructive Surgery, Munich University Hospital, Ludwig-Maximilians-University, 80336 Munich, Germany; (P.L.); (L.F.); (C.P.); (Z.F.); (M.M.S.); (W.C.P.); (P.A.)
- Center for Applied Tissue Engineering and Regenerative Medicine, Munich University of Applied Sciences, 80533 Munich, Germany;
- Correspondence: ; Tel.: +49-89-4400-55481
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Maly K, Schaible I, Riegger J, Brenner RE, Meurer A, Zaucke F. The Expression of Thrombospondin-4 Correlates with Disease Severity in Osteoarthritic Knee Cartilage. Int J Mol Sci 2019; 20:ijms20020447. [PMID: 30669608 PMCID: PMC6359043 DOI: 10.3390/ijms20020447] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2018] [Revised: 01/11/2019] [Accepted: 01/17/2019] [Indexed: 12/13/2022] Open
Abstract
Osteoarthritis (OA) is a progressive joint disease characterized by a continuous degradation of the cartilage extracellular matrix (ECM). The expression of the extracellular glycoprotein thrombospondin-4 (TSP-4) is known to be increased in injured tissues and involved in matrix remodeling, but its role in articular cartilage and, in particular, in OA remains elusive. In the present study, we analyzed the expression and localization of TSP-4 in healthy and OA knee cartilage by reverse transcription polymerase chain reaction (RT-PCR), immunohistochemistry, and immunoblot. We found that TSP-4 protein expression is increased in OA and that expression levels correlate with OA severity. TSP-4 was not regulated at the transcriptional level but we detected changes in the anchorage of TSP-4 in the altered ECM using sequential protein extraction. We were also able to detect pentameric and fragmented TSP-4 in the serum of both healthy controls and OA patients. Here, the total protein amount was not significantly different but we identified specific degradation products that were more abundant in sera of OA patients. Future studies will reveal if these fragments have the potential to serve as OA-specific biomarkers.
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Affiliation(s)
- Kathrin Maly
- Dr. Rolf M. Schwiete Research Unit for Osteoarthritis, Orthopaedic University Hospital Friedrichsheim gGmbH, Marienburgstraße 2, 60528 Frankfurt/Main, Germany.
| | - Inna Schaible
- Dr. Rolf M. Schwiete Research Unit for Osteoarthritis, Orthopaedic University Hospital Friedrichsheim gGmbH, Marienburgstraße 2, 60528 Frankfurt/Main, Germany.
| | - Jana Riegger
- Division for Biochemistry of Joint and Connective Tissue Diseases, Department of Orthopaedics, University of Ulm, Oberer Eselsberg 45, 89081 Ulm, Germany.
| | - Rolf E Brenner
- Division for Biochemistry of Joint and Connective Tissue Diseases, Department of Orthopaedics, University of Ulm, Oberer Eselsberg 45, 89081 Ulm, Germany.
| | - Andrea Meurer
- Dr. Rolf M. Schwiete Research Unit for Osteoarthritis, Orthopaedic University Hospital Friedrichsheim gGmbH, Marienburgstraße 2, 60528 Frankfurt/Main, Germany.
| | - Frank Zaucke
- Dr. Rolf M. Schwiete Research Unit for Osteoarthritis, Orthopaedic University Hospital Friedrichsheim gGmbH, Marienburgstraße 2, 60528 Frankfurt/Main, Germany.
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10
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Wu PL, He YF, Yao HH, Hu B. Martrilin-3 (MATN3) Overexpression in Gastric Adenocarcinoma and its Prognostic Significance. Med Sci Monit 2018; 24:348-355. [PMID: 29343680 PMCID: PMC5784332 DOI: 10.12659/msm.908447] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND The aim of this study was to investigate the expression level of martrilin-3 (MATN3) in patients with gastric adenocarcinoma (GAC) and to investigate the prognostic significance of MATN3. MATERIAL AND METHODS Gene Expression Omnibus (GEO) and The Cancer Genome Atlas (TCGA) data were used to predict the expression and prognostic value of MATN3 mRNA in GAC patients. Seventy-six GAC patients had GAC tissue samples and paired adjacent normal tissue samples collected retrospectively to examine the MATN3 protein expression level by immunohistochemical staining. Furthermore, Kaplan-Meier univariate and Cox multivariate analyses were used to verify the correlation between MATN3 expression and clinicopathological parameters of GAC patients and the prognostic significance of MATN3. RESULTS The GEO and TCGA data predicted that MATN3 mRNA levels were significantly higher in GAC tissue compared to normal tissue (all p<0.05). Further survival analyses showed that GAC patients with high mRNA expression of MATN3 had significantly lower disease-free survival (DFS) and overall survival (OS) time than those with low mRNA expression of MATN3 (all p<0.05). Subsequent immunohistochemical staining results confirmed that the MATN3 protein levels in GAC tissues were highly expressed (p=0.000) compared to normal tissues. In addition, GAC patients with high protein expression of MATN3 had remarkably decreased OS compared to patients with low protein expression of MATN3 (p=0.000). Univariate and multivariate survival analyses revealed that MATN3 high expression could be used as an independent predictor of poor prognosis in GAC patients (all p=0.000). CONCLUSIONS This study confirmed that MATN3 protein was highly expressed in GAC patients, and MATN3 overexpression could be used as an independent predictor of poor prognosis in GAC patients.
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Affiliation(s)
- Ping-Li Wu
- Department of Medical Oncology, Anhui Provincial Hospital, Anhui Medical University, Hefei, Anhui, China (mainland).,Department of Medical Oncology, Suixi County Hospital, Huaibei, Anhui, China (mainland)
| | - Yi-Fu He
- Department of Medical Oncology, Anhui Provincial Hospital, Anhui Medical University, Hefei, Anhui, China (mainland)
| | - Han-Hui Yao
- Department of General Surgery, Anhui Provincial Hospital, Anhui Medical University, Hefei, Anhui, China (mainland)
| | - Bing Hu
- Department of Medical Oncology, Anhui Provincial Hospital, Anhui Medical University, Hefei, Anhui, China (mainland)
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11
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Muttigi MS, Kim BJ, Choi B, Yoshie A, Kumar H, Han I, Park H, Lee SH. Matrilin-3 codelivery with adipose-derived mesenchymal stem cells promotes articular cartilage regeneration in a rat osteochondral defect model. J Tissue Eng Regen Med 2017; 12:667-675. [PMID: 28556569 DOI: 10.1002/term.2485] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Revised: 05/12/2017] [Accepted: 05/19/2017] [Indexed: 12/14/2022]
Abstract
Matrilin-3 is an essential extracellular matrix component present only in cartilaginous tissues. Matrilin-3 exerts chondroprotective effects by regulating an anti-inflammatory function and extracellular matrix components. We hypothesized that the codelivery of matrilin-3 with infrapatellar adipose-tissue-derived mesenchymal stem cells (Ad-MSCs) may enhance articular cartilage regeneration. Matrilin-3 treatment of Ad-MSCs in serum-free media induced collagen II and aggrecan expression, and matrilin-3 in chondrogenic media also enhanced in vitro chondrogenic differentiation. Next, the in vivo effect of matrilin-3 codelivery with Ad-MSCs on cartilage regeneration was assessed in an osteochondral defect model in Sprague Dawley rats: Ad-MSCs and hyaluronic acid were implanted at the defect site with or without matrilin-3 (140, 280, and 700 ng). Safranin O staining revealed that matrilin-3 (140 and 280 ng) treatment significantly improved cartilage regeneration and glycosaminoglycan accumulation. In the animals treated with 140-ng matrilin-3, in particular, the defect site exhibited complete integration with surrounding tissue and a smooth glistening surface. The International Cartilage Repair Society macroscopic and O'Driscoll microscopic scores for regenerated cartilage were furthermore shown to be considerably higher for this group (matrilin-3; 140 ng) compared with the other groups. Furthermore, the defects treated with 140-ng matrilin-3 revealed significant hyaline-like cartilage regeneration in the osteochondral defect model; in contrast, the defects treated with 700-ng matrilin-3 exhibited drastically reduced cartilage regeneration with mixed hyaline-fibrocartilage morphology. Codelivery of matrilin-3 with Ad-MSCs significantly influenced articular cartilage regeneration, supporting the potential use of this tissue-specific protein for a cartilage-targeted stem cell therapy.
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Affiliation(s)
- Manjunatha S Muttigi
- Department of Biomedical Science, CHA University, Seongnam, South Korea.,School of Integrative Engineering, Chung-Ang University, Seoul, South Korea
| | - Byoung Ju Kim
- Department of Biomedical Science, CHA University, Seongnam, South Korea
| | - Bogyu Choi
- Department of Biomedical Science, CHA University, Seongnam, South Korea
| | - Arai Yoshie
- Department of Biomedical Science, CHA University, Seongnam, South Korea
| | - Hemant Kumar
- Department of Biomedical Science, CHA University, Seongnam, South Korea.,Department of Neurosurgery, CHA Bundang Medical Center, CHA University, Seongnam, South Korea
| | - Inbo Han
- Department of Neurosurgery, CHA Bundang Medical Center, CHA University, Seongnam, South Korea
| | - Hansoo Park
- School of Integrative Engineering, Chung-Ang University, Seoul, South Korea
| | - Soo-Hong Lee
- Department of Biomedical Science, CHA University, Seongnam, South Korea
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12
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Diab SM, Kamal HM, Mansour AI, Fawzy RM, Azab BS. Clinical significance of Matrilin-3 gene polymorphism in Egyptian patients with primary knee osteoarthritis. Eur J Rheumatol 2017; 4:200-204. [PMID: 28983412 PMCID: PMC5621842 DOI: 10.5152/eurjrheum.2016.16107] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2016] [Accepted: 03/05/2017] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVE Osteoarthritis (OA) is a multifactorial, degenerative, and inflammatory disorder of joints causing damage of the articular cartilage, formation of osteophytes, and eburination of the subchondral bone. Matrilin-3 (MATN-3) is a non-collagenous oligomeric extracellular matrix protein (ECM), which is the smallest member of the matrilin family. This study was conducted to identify the potential association and clinical significance of MATN-3 rs8176070 (SNP6) polymorphism in a series of Egyptian patients with primary knee OA. MATERIAL AND METHODS Polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) was used to determine genotypes of MATN-3 SNP6 for 50 primary knee OA patients in addition to 50 healthy subjects of the same sex and age range. Full history was obtained from OA patients, followed by clinical examination, together with clinical assessment of the severity of knee OA using Lequesne Algofunctional Index score and radiological grading using the Kellgren-Lawrence grade scale (KL). RESULTS With regard to genotypes of MATN-3 gene SNP6 (rs8176070), a statistically significant difference between OA patients and healthy control subjects was found for the B\b genotype and b allele (p=0.046 and 0.042 respectively), with the prevalence being higher in OA patients with a high risk to develop OA (Odds Ratio [OR]=2.250, 95% CI=1.011-5.008). Patients with the B\b genotype had worse clinical and radiological findings than those with B\B and b\b genotypes. CONCLUSION The investigated polymorphism in the MATN-3 gene may reflect the risk and severity of knee OA in Egyptian patients, particularly with the B\b genotype.
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Affiliation(s)
- Safia M. Diab
- Department of Clinical & Chemical Pathology, Benha University School Medicine, Benha, Egypt
| | - Howyda M. Kamal
- Department of Clinical & Chemical Pathology, Benha University School Medicine, Benha, Egypt
| | - Amira I. Mansour
- Department of Clinical & Chemical Pathology, Benha University School Medicine, Benha, Egypt
| | - Rasha M. Fawzy
- Department of Rheumatology & Rehabilitation, Benha University School Medicine, Benha, Egypt
| | - Basma S. Azab
- Department of Clinical & Chemical Pathology, Benha University School Medicine, Benha, Egypt
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13
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Cheng NT, Meng H, Ma LF, Zhang L, Yu HM, Wang ZZ, Guo A. Role of autophagy in the progression of osteoarthritis: The autophagy inhibitor, 3-methyladenine, aggravates the severity of experimental osteoarthritis. Int J Mol Med 2017; 39:1224-1232. [PMID: 28339018 PMCID: PMC5403511 DOI: 10.3892/ijmm.2017.2934] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Accepted: 03/14/2017] [Indexed: 12/31/2022] Open
Abstract
Accumulating evidence suggests that autophagy is closely related to the pathogenesis of osteoarthritis (OA). The aim of this study was to determine the changes in autophagy during the progression of OA and to elucidate the specific role of autophagy in OA. For this purpose, a cellular model of OA was generated by stimulating SW1353 cells with interleukin (IL)-1β and a rabbit model of OA was also established by an intra-articular injection of collagenase, followed by treatment with the autophagy specific inhibitor, 3-methyladenine (3-MA). Cell viability was analyzed by MTS assay, and the mRNA expression levels of matrix metalloproteinases (MMP)-13 and tissue inhibitor of metalloproteinase (TIMP)-1 were determined by RT-qPCR. Cartilage degeneration was examined under a light microscope, and autophagosome and chondrocyte degeneration was observed by transmission electron microscopy. The protein expression of Beclin-1 and light chain 3 (LC3)B was evaluated by western blot analysis and immunofluorescence staining. We found that the autophagy was enhanced during the early stages and was weakened during the late stages of experimental OA. The inhibition of autophagy by 3-MA significantly aggravated the degeneration of chondrocytes and cartilage in experimental OA. Our results thus determine the changes in autophagy during different stages of OA, as well as the role of impaired autophagy in the development of OA. Our data suggest that the regulation of autophagy may be a potential therapeutic strategy with which to attenuate OA.
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Affiliation(s)
- Ni-Tao Cheng
- Department of Orthopaedics, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, P.R. China
| | - Hai Meng
- Department of Orthopaedics, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, P.R. China
| | - Li-Feng Ma
- Department of Orthopaedics, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, P.R. China
| | - Liang Zhang
- Department of Orthopaedics, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, P.R. China
| | - Hao-Miao Yu
- Department of Orthopaedics, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, P.R. China
| | - Zhen-Zhong Wang
- Department of Orthopaedics, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, P.R. China
| | - Ai Guo
- Department of Orthopaedics, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, P.R. China
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14
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Abstract
Abstract
Osteoarthritis (OA), a degenerative joint disease, is the most common form of arthritis in the elderly. Problems arising from the condition are not only health, physical, and psychological, but also economical and social. OA is a complex disease causes by environmental factors (obesity, female gender, advancing age) and genetics. A strong genetic contribution to primary OA has been observed in several studies. Asian population is undoubtedly genetically different from European, whom most studies have been performed. This review systematically compares results of molecules involved with OA from studies performed on Asian and Caucasian populations. The clear differences between Asian and Caucasian populations may be from the sex- and ethnic-specific nature of the disease, as well as from the inclusion criteria of the studies. Global collaboration is highly significant in understanding genetic underlying OA. Knowledge gained from genetic study is important to the development of prevention and therapeutic intervention, and to identify individuals at risk of developing severe or progressive OA.
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Affiliation(s)
- Rachaneekorn Tammachote
- PhD, Human Genetics Research, Department of Botany, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
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15
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Abstract
The zebrafish skeleton shares many similarities with human and other vertebrate skeletons. Over the past years, work in zebrafish has provided an extensive understanding of the basic developmental mechanisms and cellular pathways directing skeletal development and homeostasis. This review will focus on the cell biology of cartilage and bone and how the basic cellular processes within chondrocytes and osteocytes function to assemble the structural frame of a vertebrate body. We will discuss fundamental functions of skeletal cells in production and secretion of extracellular matrix and cellular activities leading to differentiation of progenitors to mature cells that make up the skeleton. We highlight important examples where findings in zebrafish provided direction for the search for genes causing human skeletal defects and also how zebrafish research has proven important for validating candidate human disease genes. The work we cover here illustrates utility of zebrafish in unraveling molecular mechanisms of cellular functions necessary to form and maintain a healthy skeleton.
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Affiliation(s)
- Lauryn N Luderman
- Vanderbilt University Medical Center, Nashville, TN, United States; Vanderbilt Brain Institute, Vanderbilt University, Nashville, TN, United States; Vanderbilt Genetics Institute, Vanderbilt University, Nashville, TN, United States
| | - Gokhan Unlu
- Vanderbilt University Medical Center, Nashville, TN, United States; Vanderbilt Genetics Institute, Vanderbilt University, Nashville, TN, United States; Vanderbilt University, Nashville, TN, United States
| | - Ela W Knapik
- Vanderbilt University Medical Center, Nashville, TN, United States; Vanderbilt Brain Institute, Vanderbilt University, Nashville, TN, United States; Vanderbilt Genetics Institute, Vanderbilt University, Nashville, TN, United States; Vanderbilt University, Nashville, TN, United States.
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16
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Muttigi MS, Han I, Park HK, Park H, Lee SH. Matrilin-3 Role in Cartilage Development and Osteoarthritis. Int J Mol Sci 2016; 17:ijms17040590. [PMID: 27104523 PMCID: PMC4849044 DOI: 10.3390/ijms17040590] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Revised: 04/10/2016] [Accepted: 04/13/2016] [Indexed: 11/16/2022] Open
Abstract
The extracellular matrix (ECM) of cartilage performs essential functions in differentiation and chondroprogenitor cell maintenance during development and regeneration. Here, we discuss the vital role of matrilin-3, an ECM protein involved in cartilage development and potential osteoarthritis pathomechanisms. As an adaptor protein, matrilin-3 binds to collagen IX to form a filamentous network around cells. Matrilin-3 is an essential component during cartilage development and ossification. In addition, it interacts directly or indirectly with transforming growth factor β (TGF-β), and bone morphogenetic protein 2 (BMP2) eventually regulates chondrocyte proliferation and hypertrophic differentiation. Interestingly, matrilin-3 increases interleukin receptor antagonists (IL-Ra) in chondrocytes, suggesting its role in the suppression of IL-1β-mediated inflammatory action. Matrilin-3 downregulates the expression of matrix-degrading enzymes, such as a disintegrin metalloproteinase with thrombospondin motifs 4 (ADAMTS4) and ADAMTS5, matrix metalloproteinase 13 (MMP13), and collagen X, a hypertrophy marker during development and inflammatory conditions. Matrilin-3 essentially enhances collagen II and aggrecan expression, which are required to maintain the tensile strength and elasticity of cartilage, respectively. Interestingly, despite these attributes, matrilin-3 induces osteoarthritis-associated markers in chondrocytes in a concentration-dependent manner. Existing data provide insights into the critical role of matrilin-3 in inflammation, matrix degradation, and matrix formation in cartilage development and osteoarthritis.
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Affiliation(s)
- Manjunatha S Muttigi
- School of Integrative Engineering, Chung-Ang University, Seoul 06911, Korea.
- Department of Biomedical Science, CHA University, Seongnam-Si 13488, Korea.
| | - Inbo Han
- Department of Neurosurgery, CHA Bundang Medical Center, CHA University, Seongnam-si 13496, Korea.
| | - Hun-Kuk Park
- Department of Biomedical Engineering, Collage of Medicine, Kyung Hee University, Seoul 02447, Korea.
| | - Hansoo Park
- School of Integrative Engineering, Chung-Ang University, Seoul 06911, Korea.
| | - Soo-Hong Lee
- Department of Biomedical Science, CHA University, Seongnam-Si 13488, Korea.
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17
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Garciadiego-Cázares D, Aguirre-Sánchez HI, Abarca-Buis RF, Kouri JB, Velasquillo C, Ibarra C. Regulation of α5 and αV Integrin Expression by GDF-5 and BMP-7 in Chondrocyte Differentiation and Osteoarthritis. PLoS One 2015; 10:e0127166. [PMID: 26010756 PMCID: PMC4443976 DOI: 10.1371/journal.pone.0127166] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Accepted: 04/13/2015] [Indexed: 11/23/2022] Open
Abstract
The Integrin β1 family is the major receptors of the Extracellular matrix (ECM), and the synthesis and degradation balance of ECM is seriously disrupted during Osteoarthritis (OA). In this scenario, integrins modify their pattern expression and regulate chondrocyte differentiation in the articular cartilage. Members of the Transforming growth factor beta (Tgf-β) Superfamily, such as Growth differentiation factor 5 (Gdf-5) and Bone morphogenetic protein 7 (Bmp-7), play a key role in joint formation and could regulate the integrin expression during chondrocyte differentiation and osteoarthritis progression in an experimental OA rat model. Decrease of α5 integrin expression in articular cartilage was related with chondrocyte dedifferentiation during OA progression, while increase of α1, α2, and α3 integrin expression was related with fibrous areas in articular cartilage during OA. Hypertrophic chondrocytes expressed αV integrin and was increased in the articular cartilage of rats with OA. Integrin expression during chondrocyte differentiation was also analyzed in a micromass culture system of mouse embryo mesenchymal cells, micromass cultures was treated with Gdf-5 or Bmp-7 for 4 and 6 days, respectively. Gdf-5 induced the expression of the α5 sub-unit, while Bmp-7 induced the expression of the αV sub-unit. This suggests a switch in signaling for prehypertrophic chondrocyte differentiation towards hypertrophy, where Gdf-5 could maintain the articular chondrocyte phenotype and Bmp-7 would induce hypertrophy. Decrease of Ihh expression during late stages of OA in rat model suggest that the ossification in OA rat knees and endochondral ossification could be activated by Bmp-7 and αV integrin in absence of Ihh. Thus, chondrocyte phenotype in articular cartilage is similar to prehypetrophic chondrocyte in growth plate, and is preserved due to the presence of Indian hedgehog (Ihh), Gdf-5 and α5 integrin to maintain articular cartilage and prevent hypertrophy.
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Affiliation(s)
- David Garciadiego-Cázares
- Unidad de Ingeniería de Tejidos, Terapia Celular y Medicina Regenerativa, Instituto Nacional de Rehabilitación (INR), Secretaría de Salud (SSA), Mexico City, Mexico
| | - Hilda I. Aguirre-Sánchez
- Unidad de Ingeniería de Tejidos, Terapia Celular y Medicina Regenerativa, Instituto Nacional de Rehabilitación (INR), Secretaría de Salud (SSA), Mexico City, Mexico
| | - René F. Abarca-Buis
- Laboratorio de Tejido Conjuntivo, Instituto Nacional de Rehabilitación (INR), Secretaría de Salud (SSA), Mexico City, Mexico
| | - Juan B. Kouri
- Departamento de Infectómica y Patogénesis Molecular, Centro de Investigación y de Estudios Avanzados, Instituto Politécnico Nacional (CINVESTAV-IPN), Mexico City, Mexico
| | - Cristina Velasquillo
- Unidad de Ingeniería de Tejidos, Terapia Celular y Medicina Regenerativa, Instituto Nacional de Rehabilitación (INR), Secretaría de Salud (SSA), Mexico City, Mexico
| | - Clemente Ibarra
- Unidad de Ingeniería de Tejidos, Terapia Celular y Medicina Regenerativa, Instituto Nacional de Rehabilitación (INR), Secretaría de Salud (SSA), Mexico City, Mexico
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18
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Casagrande D, Stains JP, Murthi AM. Identification of shoulder osteoarthritis biomarkers: comparison between shoulders with and without osteoarthritis. J Shoulder Elbow Surg 2015; 24:382-90. [PMID: 25595362 PMCID: PMC4331258 DOI: 10.1016/j.jse.2014.11.039] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2013] [Revised: 11/12/2014] [Accepted: 11/15/2014] [Indexed: 02/01/2023]
Abstract
BACKGROUND The biologic factors associated with shoulder osteoarthritis (OA) have not been elucidated. The purpose of this study was to investigate osteoarthritic biomarkers of the shoulder. To our knowledge, this is the first study to analyze shoulder cartilage for OA-associated genes and to examine human shoulder cartilage for a possible biomarker, connexin 43 (Cx43). MATERIALS AND METHODS Cartilage from 16 osteoarthritic and 10 nonosteoarthritic humeral heads was assessed for expression of the following genes by real-time polymerase chain reaction: types I, II, and X collagen; matrix metalloproteinases (MMPs); tissue inhibitors of MMP (TIMPs); interleukins; versican; cyclooxygenase 2 (Cox-2); inducible nitric oxide synthase (iNOS); tumor necrosis factor α (TNF-α); aggrecanase 2 (ADAMTS5); and Cx43. RESULTS In osteoarthritic shoulders, Cx43, Cox-2, versican, collagen type I, ADAMTS5, MMP-3, and TNF-α expressions were significantly increased compared with controls. TIMP-3 and iNOS trended toward significance, with robust expression in osteoarthritic shoulders and low expression in nonosteoarthritic shoulders. In osteoarthritic shoulders, gene expression of Cx43, ADAMTS5, collagen type I, Cox-2, versican, and TIMP-3 showed predominance (85-, 33-, 13-, 12-, 11.5-, and 3-fold increases, respectively) relative to nonosteoarthritic controls. Spearman correlation analysis showed significant correlations between Cx43 and collagen (types I, II, and X), MMP-9, TIMP-2 and TIMP-3, versican, Cox-2, iNOS, and ADAMTS5. CONCLUSIONS Certain genes are markedly upregulated in osteoarthritic shoulders compared with nonosteoarthritic shoulders, with Cx43, Cox-2, versican, collagen type I, ADAMTS5, MMP-3, and TNF-α expression being significantly increased. These genes might be useful biomarkers for examining shoulder OA. CLINICAL RELEVANCE Identification of osteoarthritic biomarkers can help us better understand shoulder OA and build the foundation for future research on disease progression and treatments.
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19
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Zhang Z. Chondrons and the pericellular matrix of chondrocytes. TISSUE ENGINEERING PART B-REVIEWS 2014; 21:267-77. [PMID: 25366980 DOI: 10.1089/ten.teb.2014.0286] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
In cartilage, chondrocytes are embedded within an abundant extracellular matrix (ECM). A typical chondron consists of a chondrocyte and the immediate surrounding pericellular matrix (PCM). The PCM has a patent structure, defined molecular composition, and unique physical properties that support the chondrocyte. Given this spatial position, the PCM is pivotal in mediating communication between chondrocytes and the ECM and, thus, plays a critical role in cartilage homeostasis. The biological function and mechanical properties of the PCM have been extensively studied, mostly in the form of chondrons. This review intends to summarize recent progress in chondron and chondrocyte PCM research, with emphasis on the re-establishment of the PCM by isolated chondrocytes or mesenchymal stem cells during chondrogenic differentiation, and the effects of the PCM on cartilage tissue formation.
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Affiliation(s)
- Zijun Zhang
- Orthobiologic Laboratory, MedStar Union Memorial Hospital, Baltimore, Maryland
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20
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Ruthard J, Kamper M, Renno JH, Kühn G, Hillebrand U, Höllriegl S, Johannis W, Zaucke F, Klatt AR. COMP does not directly modify the expression of genes involved in cartilage homeostasis in contrast to several other cartilage matrix proteins. Connect Tissue Res 2014; 55:348-56. [PMID: 25111190 DOI: 10.3109/03008207.2014.951440] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVE We investigated whether COMP may modify cartilage metabolism and play a role as an endogenous disease aggravating factor in OA. MATERIALS AND METHODS Full-length and momomeric COMP was recombinantly expressed in human embryonic kidney cells and purified it via affinity chromatography. Purified COMP was used to stimulate either primary human chondrocytes or cartilage explants. Changes in the expression profiles of inflammatory genes, differentiation markers and growth factors were examined by immunoassay and by quantitative real-time reverse-transcription polymerase chain reaction. RESULTS Incubation of primary human chondrocytes or cartilage explants in the presence of COMP did not induce statistically significant changes in the expression of IL-6, MMP1, MMP13, collagen I, collagen II, collagen X, TGF-β1 and BMP-2. CONCLUSIONS In contrast to collagen II and matrilin-3, COMP lacks the ability to trigger a proinflammatory response in chondrocytes, although it carries an RGD motif and can bind to integrins. COMP is a well-accepted biomarker for osteoarthritis but increased COMP levels do not necessarily correlate with inflammation.
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Affiliation(s)
- Johannes Ruthard
- Institute for Clinical Chemistry, University of Cologne , Cologne , Germany
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21
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Klatt AR, Paul-Klausch B, Klinger G, Hillebrand U, Kühn G, Kobbe B, Renno JH, Johannis W, Paulsson M, Wagener R. The matrilin-3 VWA1 domain modulates interleukin-6 release from primary human chondrocytes. Osteoarthritis Cartilage 2013; 21:869-73. [PMID: 23523902 DOI: 10.1016/j.joca.2013.03.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2012] [Revised: 01/29/2013] [Accepted: 03/06/2013] [Indexed: 02/02/2023]
Abstract
OBJECTIVE We previously demonstrated the ability of matrilin-3 to modulate the gene expression profile of primary human chondrocytes (PHCs) toward a state favoring cartilage catabolism. The structure within matrilin-3 responsible for the induction of these catabolic genes is unknown. Here, we investigated the potential of matrilin-3 (MATN3) and truncated matrilin-3 proteins, in both monomeric and oligomeric form, to stimulate interleukin (IL)-6 release in PHCs. METHODS We expressed full-length matrilin-3 oligomers, matrilin-3 von Willebrand factor A (VWA) domain oligomers, matrilin-3 four epidermal growth factor (EGF) domain oligomers, matrilin-3 monomers without oligomerization domains, matrilin-3 VWA domain monomers, and matrilin-3 4EGF monomers. We then incubated PHCs in the absence or presence of full-length matrilin-3 or one of the truncated matrilin-3 proteins and finally determined the release of IL-6 in cell-culture supernatants. RESULTS The addition of full-length matrilin-3 oligomers, matrilin-3 VWA domain oligomers, and, less pronounced, matrilin-3 monomers without oligomerization domains, and matrilin-3 4EGF-oligomers to the cell-culture medium led to a significant induction of IL-6 in PHCs. DISCUSSION Based on recombinant expression of different matrilin-3 domains in both monomeric and oligomeric form, this work demonstrated that the VWA1 domain of matrilin-3 is primarily responsible for the induction of IL-6 release and that the oligomerization of the VWA1 domain markedly promotes its activity.
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Affiliation(s)
- A R Klatt
- Institute for Clinical Chemistry, University of Cologne, Cologne, Germany.
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22
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Extracellular matrix protein patterns guide human chondrocytes adhesion and alignment characterized by vimentin and matrilin-3. Colloids Surf B Biointerfaces 2013; 102:730-6. [DOI: 10.1016/j.colsurfb.2012.09.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2012] [Revised: 08/29/2012] [Accepted: 09/04/2012] [Indexed: 11/20/2022]
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23
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Jayasuriya CT, Goldring MB, Terek R, Chen Q. Matrilin-3 induction of IL-1 receptor antagonist is required for up-regulating collagen II and aggrecan and down-regulating ADAMTS-5 gene expression. Arthritis Res Ther 2012; 14:R197. [PMID: 22967398 PMCID: PMC3580507 DOI: 10.1186/ar4033] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2012] [Accepted: 08/21/2012] [Indexed: 12/15/2022] Open
Abstract
Introduction Deletion or mutation of the gene encoding the cartilage extracellular matrix (ECM) protein matrilin-3 (MATN3) results in the early onset of osteoarthritis (OA), suggesting chondroprotective properties of MATN3. To understand the mechanisms underlying these properties, we determined the effects of MATN3 protein on the expression of several key anabolic and catabolic genes involved in chondrocyte homeostasis, and the dependence of such regulation on the anti-inflammatory cytokine: IL-1 receptor antagonist (IL-1Ra). Methods The effects of recombinant human (rh) MATN3 protein were examined in C28/I2 immortalized human chondrocytes, primary human chondrocytes (PHCs), and primary mouse chondrocytes (PMCs). Messenger RNA levels of IL-1Ra, COL2A1, ACAN, MMP-13, and ADAMTS-4 and -5 were determined using real-time RT-PCR. Knocking down IL-1Ra was achieved by siRNA gene silencing. IL-1Ra protein levels were quantified by ELISA and the Bio-Plex Suspension Array System. COL2A1 protein level was quantified using Western blot analysis. Statistic analysis was done using the two-tailed t-test or one-way ANOVA. Results rhMATN3 protein induced gene expression of IL-1Ra in C28/I2 cells, PHCs, and PMCs in a dose- and time-dependent manner. Treatment of C28/I2 cells and PHCs with MATN3 protein stimulated gene expression of COL2A1 and ACAN. Conversely, mRNA levels of COL2A1 and ACAN were decreased in MATN3 KO mice. MATN3 protein treatment inhibited IL-1β-induced MMP-13, ADAMTS-4 and ADAMTS-5 in C28/I2 cells and PHCs. Knocking down IL-1Ra abolished the MATN3-mediated stimulation of COL2A1 and ACAN and inhibition of ADAMTS-5, but had no effect on MATN3 inhibition of MMP-13 mRNA. Conclusion Our findings point to a novel regulatory role of MATN3 in cartilage homeostasis due to its capacity to induce IL-1Ra, to upregulate gene expression of the major cartilage matrix components, and to downregulate the expression of OA-associated matrix-degrading proteinases in chondrocytes. The chondroprotective properties of endogenous MATN3 depend partly on its induction of IL-1Ra. Our findings raise a possibility to use rhMATN3 protein for anti-inflammatory and chondroprotective therapy.
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Vincourt JB, Gillet P, Rat AC, Guillemin F, Netter P, Mainard D, Magdalou J. Measurement of matrilin-3 levels in human serum and synovial fluid using a competitive enzyme-linked immunosorbent assay. Osteoarthritis Cartilage 2012; 20:783-6. [PMID: 22469847 DOI: 10.1016/j.joca.2012.03.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2011] [Revised: 03/14/2012] [Accepted: 03/22/2012] [Indexed: 02/02/2023]
Affiliation(s)
- J-B Vincourt
- UMR 7561 CNRS-UL, Faculté de Médecine, 9, Avenue de la Forêt de Haye, BP 184, 54505 Vandoeuvre-lès-Nancy, France.
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Vincourt JB, Etienne S, Grossin L, Cottet J, Bantsimba-Malanda C, Netter P, Mainard D, Libante V, Gillet P, Magdalou J. Matrilin-3 switches from anti- to pro-anabolic upon integration to the extracellular matrix. Matrix Biol 2012; 31:290-8. [PMID: 22521401 DOI: 10.1016/j.matbio.2012.03.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2012] [Revised: 03/19/2012] [Accepted: 03/23/2012] [Indexed: 11/19/2022]
Abstract
The extracellular matrix (ECM) has long been viewed primarily as an organized network of solid-phase ligands for integrin receptors. During degenerative processes, such as osteoarthritis, the ECM undergoes deterioration, resulting in its remodeling and in the release of some of its components. Matrilin-3 (MATN3) is an almost cartilage specific, pericellular protein acting in the assembly of the ECM of chondrocytes. In the past, MATN3 was found required for cartilage homeostasis, but also involved in osteoarthritis-related pro-catabolic functions. Here, to better understand the pathological and physiological functions of MATN3, its concentration as a circulating protein in articular fluids of human osteoarthritic patients was determined and its functions as a recombinant protein produced in human cells were investigated with particular emphasis on the physical state under which it is presented to chondrocytes. MATN3 down-regulated cartilage extracellular matrix (ECM) synthesis and up-regulated catabolism when administered as a soluble protein. When artificially immobilized, however, MATN3 induced chondrocyte adhesion via a α5β1 integrin-dependent mechanism, AKT activation and favored survival and ECM synthesis. Furthermore, MATN3 bound directly to isolated α5β1 integrin in vitro. TGFβ1 stimulation of chondrocytes allowed integration of exogenous MATN3 into their ECM and ECM-integrated MATN3 induced AKT phosphorylation and improved ECM synthesis and accumulation. In conclusion, the integration of MATN3 to the pericellular matrix of chondrocytes critically determines the direction toward which MATN3 regulates cartilage metabolism. These data explain how MATN3 plays either beneficial or detrimental functions in cartilage and highlight the important role played by the physical state of ECM molecules.
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Affiliation(s)
- Jean-Baptiste Vincourt
- UMR 7561 CNRS-Université de Lorraine, Faculté de Médecine, 9, Avenue de la Forêt de Haye, BP 184, 54505 Vandoeuvre-lès-Nancy, France.
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Park S, Yang JS, Shin YE, Park J, Jang SK, Kim S. Protein localization as a principal feature of the etiology and comorbidity of genetic diseases. Mol Syst Biol 2011; 7:494. [PMID: 21613983 PMCID: PMC3130560 DOI: 10.1038/msb.2011.29] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2010] [Accepted: 04/19/2011] [Indexed: 01/14/2023] Open
Abstract
Proteins localized within the same subcellular compartment tend to be functionally associated. This study shows that subcellular localization and network distance between disease-associated proteins provide complementary information explaining patterns of disease comorbidity. A positive correlation was found between subcellular localization of disease-associated protein pairs and measures of comorbidity. A higher comorbidity tendency was found for disease-associated protein pairs that are positioned within a shorter distance in the protein interaction network. The integration of subcellular localization information with protein interaction network sheds light onto the potential molecular connections underlying comorbidity patterns and will help to understand the mechanisms of human disease.
It was shown that the emergence of phenotypically similar diseases are triggered as a result of molecular connections between disease-causing genes (Oti and Brunner, 2007; Zaghloul and Katsanis, 2010). From a genetics, perspective diseases are associated with certain genes (Goh et al, 2007; Feldman et al, 2008), whereas from a proteomics perspective phenotypically similar diseases are connected via biological modules such as protein–protein interactions (PPIs) or molecular pathways (Lage et al, 2007; Jiang et al, 2008; Wu et al, 2008; Linghu et al, 2009; Suthram et al, 2010). These molecular connections between diseases were observed on the population level as well: diseases connected through molecular connections such as shared genes, PPIs, and metabolic pathways tend to show elevated comorbidity (Rzhetsky et al, 2007; Lee et al, 2008; Zhernakova et al, 2009; Park et al, 2009a, 2009b). While these findings constitute a step toward improving our understanding of the mechanism of disease progression, there are still many more molecule-level connections between disease pairs that need to be explored in order to establish a firmer comorbidity association. Subcellular localization provides spatial information of proteins in the cell; proteins target subcellular localizations to interact with appropriate partners and form functional complexes in signaling pathways and metabolic processes (Au et al, 2007). Abnormal protein localizations are known to lead to the loss of functional effects in diseases (Luheshi et al, 2008; Laurila and Vihinen, 2009). For example, mis-localizations of nuclear/cytoplasmic transport have been detected in many types of carcinoma cells (Kau et al, 2004). A proper identification of protein subcellular localization can hence be useful in discovering disease-associated proteins (Giallourakis et al, 2005; Calvo and Mootha, 2010). With this understanding, we postulate that disease-associated proteins connected by subcellular localizations could also explain the phenotypic similarities between diseases. Furthermore, such connections may also couple to disease progressions that contribute to multiple disease manifestation, that is, comorbidity. Protein subcellular localization has been extensively studied through various methods to determine a variety of protein functions. To the best of our knowledge, the connection between diseases and subcellular localizations are yet to be studied systematically. To resolve this we constructed, for the first time, a human Disease-associated Protein and subcellular Localization (DPL) matrix (top panel in Box 1). Our DPL matrix provides the ‘cellular localization map of diseases' that represents the spatial index of diseases in the cell. We found that each disease shows unique characteristics of subcellular localization profile in the DPL matrix. We were interested in determining whether subsets of 1284 human diseases exhibit distinct enrichment profiles across subcellular localizations. We calculated pairwise correlations and performed a hierarchical clustering of the enrichments of the 1284 diseases across 10 different subcellular localizations. Our DPL matrix revealed that 778 diseases (∼62%, P=1.40 × 10−3) are enriched in a single localization and 273 diseases (∼21%, P=3.45 × 10−3) are enriched in dual localizations. In the DPL matrix, certain disease-associated proteins are likely to be found in membrane-bounded organelles such as mitochondria, lysosome, and peroxisome, indicating that the mutations of proteins localized to these compartments are connected to the pathophysiological conditions of those organelles. Meanwhile, certain disease-associated proteins in the DPL matrix are enriched in dual localizations, such as extracellular/plasma membrane or endoplasmic reticulum/Golgi. Although these two pairs of subcellular localizations appear to be distinct compartments at first, they are functionally related compartments in close proximity during protein translocation process in the cell, and thus are likely to share interacting protein partners (Gandhi et al, 2006). Comorbidity represents the co-occurrence of multiple diseases in the same individual (Lee et al, 2008; Hidalgo et al, 2009; Park et al, 2009a). Many comorbid disease pairs have been shown to share common genes in the human disease network. For example, Diabetes and Alzheimer's disease share a risk factor in angiotensin I converting enzyme, and frequently occur together in an individual. In such instances, comorbidity can be partially attributed to the disease connections on the molecular level. To explore the impact of protein subcellular localization on comorbidity, we hypothesized that certain disease pairs could also be connected via subcellular localization by the molecular connections between the disease-associated proteins (bottom panel in Box 1). We found a positive correlation between subcellular localization similarity and relative risk (Figure 3B, Pearson's correlation coefficient between relative risk and subcellular localization similarity=0.81, P=2.96 × 10−5). The subcellular localization similarity represents the correlation of subcellular localization profiles between disease pairs. To our surprise, when we compared the relative risk of disease pairs linked via various molecular connections, we found that disease pairs connected by subcellular localization showed a near three-fold higher comorbidity tendency (with link distances equal to 2 or 3) when compared with random pairs (Figure 3E). We then assessed quantitatively the impact of network distances and subcellular localizations on the comorbidity tendency of disease pairs. We expected the proteins associated with comorbid disease pairs to be located closely in the protein interaction network via fewer links compared with random disease pairs. Indeed, a higher comorbidity tendency was found when two disease-associated proteins were positioned within a shorter distance (gray plots in Figure 3F). Moreover, when subcellular localization information was combined with small network distances, the comorbidity tendency increased dramatically (orange plots in Figure 3F). It suggests that subcellular localization and close network distances, two conceptually distinct molecular connections, contributed synergistically to the comorbidity tendency. Disease progression is not restricted to the mutation of disease-causing genes, but also affected by molecular connections in ‘disease modules,' resulting in comorbidity (Fraser, 2006; Lee et al, 2008). In this study, for the first time we applied subcellular localization information to elucidate the molecular connections between comorbid diseases. We believe that, based on our finding, our approach helps to define the boundaries of ‘disease modules.' Taken together, integration of diverse molecular connections should improve the molecular level understanding of hitherto unexplained comorbid disease pairs and help us in expanding the scope of our knowledge of the mechanism of human disease progression. Proteins targeting the same subcellular localization tend to participate in mutual protein–protein interactions (PPIs) and are often functionally associated. Here, we investigated the relationship between disease-associated proteins and their subcellular localizations, based on the assumption that protein pairs associated with phenotypically similar diseases are more likely to be connected via subcellular localization. The spatial constraints from subcellular localization significantly strengthened the disease associations of the proteins connected by subcellular localizations. In particular, certain disease types were more prevalent in specific subcellular localizations. We analyzed the enrichment of disease phenotypes within subcellular localizations, and found that there exists a significant correlation between disease classes and subcellular localizations. Furthermore, we found that two diseases displayed high comorbidity when disease-associated proteins were connected via subcellular localization. We newly explained 7584 disease pairs by using the context of protein subcellular localization, which had not been identified using shared genes or PPIs only. Our result establishes a direct correlation between protein subcellular localization and disease association, and helps to understand the mechanism of human disease progression.
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Affiliation(s)
- Solip Park
- School of Interdisciplinary Bioscience and Bioengineering, Pohang University of Science and Technology, Pohang, Korea
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Kenagy RD, Min SK, Mulvihill E, Clowes AW. A link between smooth muscle cell death and extracellular matrix degradation during vascular atrophy. J Vasc Surg 2011; 54:182-191.e24. [PMID: 21493032 DOI: 10.1016/j.jvs.2010.12.070] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2010] [Revised: 12/07/2010] [Accepted: 12/11/2010] [Indexed: 12/12/2022]
Abstract
OBJECTIVE High blood flow induces neointimal atrophy in polytetrafluoroethylene (PTFE) aortoiliac grafts and a tight external PTFE wrap of the iliac artery induces medial atrophy. In both nonhuman primate models, atrophy with loss of smooth muscle cells and extracellular matrix (ECM) begins at ≤4 days. We hypothesized that matrix loss would be linked to cell death, but the factors and mechanisms involved are not known. The purpose of this study was to determine commonly regulated genes in these two models, which we hypothesized would be a small set of genes that might be key regulators of vascular atrophy. METHODS DNA microarray analysis (Sentrix Human Ref 8; Illumina, San Diego, Calif; ∼23,000 genes) was performed on arterial tissue from the wrap model (n = 9) and graft neointima from the graft model (n = 5) 1 day after wrapping or the switch to high flow, respectively. Quantitative reverse-transcription polymerase chain reaction (qRT-PCR) was also performed. Expression of this vascular atrophy gene set was also studied after Fas ligand-induced cell death in cultured smooth muscle cells and organ cultured arteries. RESULTS Microarray analysis showed 15 genes were regulated in the same direction in both atrophy models: 9 upregulated and 6 downregulated. Seven of nine upregulated genes were confirmed by qRT-PCR in both models. Upregulated genes included the ECM-degrading enzymes ADAMTS4, tissue plasminogen activator (PLAT), and hyaluronidase 2; possible growth regulatory factors, including chromosome 8 open reading frame 4 and leucine-rich repeat family containing 8; a differentiation regulatory factor (musculoskeletal embryonic nuclear protein 1); a dead cell removal factor (ficolin 3); and a prostaglandin transporter (solute carrier organic anion transporter family member 2A1). Five downregulated genes were confirmed but only in one or the other model. Of the seven upregulated genes, ADAMTS4, PLAT, hyaluronidase 2, solute carrier organic anion transporter family member 2A1, leucine-rich repeat family containing 8, and chromosome 8 open reading frame 4 were also upregulated in vitro in cultured smooth muscle cells or cultured iliac artery by treatment with FasL, which causes cell death. However, blockade of caspase activity with Z-VAD inhibited FasL-mediated cell death, but not gene induction. CONCLUSION Seven gene products were upregulated in two distinctly different in vivo nonhuman primate vascular atrophy models. Induction of cell death by FasL in vitro induced six of these genes, including the ECM-degrading factors ADAMTS4, hyaluronidase 2, and PLAT, suggesting a mechanism by which the program of tissue atrophy coordinately removes extracellular matrix as cells die. These genes may be key regulators of vascular atrophy.
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Affiliation(s)
- Richard D Kenagy
- Department of Surgery, University of Washington, Seattle, WA 98195-6410, USA
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Klatt AR, Becker AKA, Neacsu CD, Paulsson M, Wagener R. The matrilins: Modulators of extracellular matrix assembly. Int J Biochem Cell Biol 2011; 43:320-30. [DOI: 10.1016/j.biocel.2010.12.010] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2010] [Revised: 12/06/2010] [Accepted: 12/07/2010] [Indexed: 01/30/2023]
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Graeser AC, Giller K, Wiegand H, Barella L, Boesch‑Saadatmandi C, Rimbach G. Synergistic chondroprotective effect of alpha-tocopherol, ascorbic acid, and selenium as well as glucosamine and chondroitin on oxidant induced cell death and inhibition of matrix metalloproteinase-3--studies in cultured chondrocytes. Molecules 2009; 15:27-39. [PMID: 20110869 PMCID: PMC6256990 DOI: 10.3390/molecules15010027] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2009] [Revised: 12/16/2009] [Accepted: 12/23/2009] [Indexed: 01/21/2023] Open
Abstract
Overproduction of reactive oxygen species and impaired antioxidant defence accompanied by chronic inflammatory processes may impair joint health. Pro‑inflammatory cytokines such as interleukin-1β (IL-1β) and tumor necrosis factor alpha (TNF-α) stimulate the expression of metalloproteinases which degrade the extracellular matrix. Little is known regarding the potential synergistic effects of natural compounds such as α‑tocopherol (α-toc), ascorbic acid (AA) and selenium (Se) on oxidant induced cell death. Furthermore studies regarding the metalloproteinase-3 inhibitory activity of glucosamine sulfate (GS) and chondroitin sulfate (CS) are scarce. Therefore we have studied the effect of α-toc (0.1–2.5 µmol/L), AA (10–50 µmol/L) and Se (1–50 nmol/L) on t-butyl hydroperoxide (t‑BHP, 100–500 µmol/L)-induced cell death in SW1353 chondrocytes. Furthermore we have determined the effect of GS and CS alone (100–500 µmol/L each) and in combination on MMP3 mRNA levels and MMP3 secretion in IL-1β stimulated chondrocytes. A combination of α-toc, AA, and Se was more potent in counteracting t‑BHP‑induced cytotoxicity as compared to the single compounds. Similarly a combination of CS and GS was more effective in inhibiting MMP3 gene expression and secretion than the single components. The inhibition of MMP3 secretion due to GS plus CS was accompanied by a decrease in TNF-α production. Combining natural compounds such as α-toc, AA, and Se as well as GS and CS seems to be a promising strategy to combat oxidative stress and cytokine induced matrix degradation in chondrocytes.
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Affiliation(s)
- Anne-Christin Graeser
- Institute of Human Nutrition and Food Science, Christian Albrechts University of Kiel, Hermann-Rodewald-Strasse 6, Kiel 24098, Germany; E-Mails: (A.-C.G.); (K.G.); (H.W.); (C.B.-S.)
| | - Katrin Giller
- Institute of Human Nutrition and Food Science, Christian Albrechts University of Kiel, Hermann-Rodewald-Strasse 6, Kiel 24098, Germany; E-Mails: (A.-C.G.); (K.G.); (H.W.); (C.B.-S.)
| | - Heike Wiegand
- Institute of Human Nutrition and Food Science, Christian Albrechts University of Kiel, Hermann-Rodewald-Strasse 6, Kiel 24098, Germany; E-Mails: (A.-C.G.); (K.G.); (H.W.); (C.B.-S.)
| | - Luca Barella
- Bayer Consumer Care AG, Basel, Switzerland; E-Mail: (L.B.)
| | - Christine Boesch‑Saadatmandi
- Institute of Human Nutrition and Food Science, Christian Albrechts University of Kiel, Hermann-Rodewald-Strasse 6, Kiel 24098, Germany; E-Mails: (A.-C.G.); (K.G.); (H.W.); (C.B.-S.)
| | - Gerald Rimbach
- Institute of Human Nutrition and Food Science, Christian Albrechts University of Kiel, Hermann-Rodewald-Strasse 6, Kiel 24098, Germany; E-Mails: (A.-C.G.); (K.G.); (H.W.); (C.B.-S.)
- Author to whom correspondence should be addressed; E-Mail:
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