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Farrugia BL, Melrose J. The Glycosaminoglycan Side Chains and Modular Core Proteins of Heparan Sulphate Proteoglycans and the Varied Ways They Provide Tissue Protection by Regulating Physiological Processes and Cellular Behaviour. Int J Mol Sci 2023; 24:14101. [PMID: 37762403 PMCID: PMC10531531 DOI: 10.3390/ijms241814101] [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: 07/24/2023] [Revised: 09/03/2023] [Accepted: 09/05/2023] [Indexed: 09/29/2023] Open
Abstract
This review examines the roles of HS-proteoglycans (HS-PGs) in general, and, in particular, perlecan and syndecan as representative examples and their interactive ligands, which regulate physiological processes and cellular behavior in health and disease. HS-PGs are essential for the functional properties of tissues both in development and in the extracellular matrix (ECM) remodeling that occurs in response to trauma or disease. HS-PGs interact with a biodiverse range of chemokines, chemokine receptors, protease inhibitors, and growth factors in immune regulation, inflammation, ECM stabilization, and tissue protection. Some cell regulatory proteoglycan receptors are dually modified hybrid HS/CS proteoglycans (betaglycan, CD47). Neurexins provide synaptic stabilization, plasticity, and specificity of interaction, promoting neurotransduction, neurogenesis, and differentiation. Ternary complexes of glypican-1 and Robbo-Slit neuroregulatory proteins direct axonogenesis and neural network formation. Specific neurexin-neuroligin complexes stabilize synaptic interactions and neural activity. Disruption in these interactions leads to neurological deficits in disorders of functional cognitive decline. Interactions with HS-PGs also promote or inhibit tumor development. Thus, HS-PGs have complex and diverse regulatory roles in the physiological processes that regulate cellular behavior and the functional properties of normal and pathological tissues. Specialized HS-PGs, such as the neurexins, pikachurin, and Eyes-shut, provide synaptic stabilization and specificity of neural transduction and also stabilize the axenome primary cilium of phototoreceptors and ribbon synapse interactions with bipolar neurons of retinal neural networks, which are essential in ocular vision. Pikachurin and Eyes-Shut interactions with an α-dystroglycan stabilize the photoreceptor synapse. Novel regulatory roles for HS-PGs controlling cell behavior and tissue function are expected to continue to be uncovered in this fascinating class of proteoglycan.
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Affiliation(s)
- Brooke L. Farrugia
- Department of Biomedical Engineering, Faculty of Engineering and Information Technology, University of Melbourne, Melbourne, VIC 3010, Australia;
| | - James Melrose
- Graduate School of Biomedical Engineering, University of New South Wales, Sydney, NSW 2052, Australia
- Raymond Purves Laboratory of Bone and Joint Research, Kolling Institute of Medical Research, Northern Sydney Local Health District, Royal North Shore Hospital, St. Leonards, NSW 2065, Australia
- Sydney Medical School (Northern), University of Sydney at Royal North Shore Hospital, St. Leonards, NSW 2065, Australia
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2
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Kang X, Zhang K, Wang Y, Zhao Y, Lu Y. Single-cell RNA sequencing analysis of human chondrocytes reveals cell-cell communication alterations mediated by interactive signaling pathways in osteoarthritis. Front Cell Dev Biol 2023; 11:1099287. [PMID: 37082621 PMCID: PMC10112522 DOI: 10.3389/fcell.2023.1099287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 03/27/2023] [Indexed: 04/22/2023] Open
Abstract
Objective: Osteoarthritis (OA) is a common joint disorder characterized by degenerative articular cartilage, subchondral bone remodeling, and inflammation. Increasing evidence suggests that the substantial crosstalk between cartilage and synovium is closely related to Osteoarthritis development, but the events that cause this degeneration remain unknown. This study aimed to explore the alterations in intercellular communication involved in the pathogenesis of Osteoarthritis using bioinformatics analysis. Methods: Single-cell transcriptome sequencing (scRNA-seq) profiles derived from articular cartilage tissue of patients with Osteoarthritis were downloaded from a public database. Chondrocyte heterogeneity was assessed using computational analysis, and cell type identification and clustering analysis were performed using the "FindClusters" function in the Seurat package. Intercellular communication networks, including major signaling inputs and outputs for cells, were predicted, and analyzed using CellChat. Results: Seven molecularly defined chondrocytes clusters (homeostatic chondrocytes, hypertrophic chondrocyte (HTC), pre-HTC, regulatory chondrocytes, fibro-chondrocytes (FC), pre-FC, and reparative chondrocyte) with different compositions were identified in the damaged cartilage. Compared to those in the intact cartilage, the overall cell-cell communication frequency and communication strength were remarkably increased in the damaged cartilage. The cellular communication among chondrocyte subtypes mediated by signaling pathways, such as PTN, VISFATIN, SPP1, and TGF-β, was selectively altered in Osteoarthritis. Moreover, we verified that SPP1 pathway enrichment scores increased, but VISFATIN pathway enrichment scores decreased based on the bulk rna-seq datasets in Osteoarthritis. Conclusion: Our results revealed alterations in cell-cell communication among OA-related chondrocyte subtypes that were mediated by specific signaling pathways, which might be a crucial underlying mechanism associated with Osteoarthritis progression.
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Affiliation(s)
- Xin Kang
- Department of Orthopaedic Surgery, Honghui Hospital, Xi’an Jiaotong University, Xi'an, Shaanxi, China
| | - Kailiang Zhang
- Department of Orthopedics, The 960th Hospital of the PLA Joint Logistics Support Force, Jinan, Shandong, China
| | - Yakang Wang
- Department of Orthopaedic Surgery, Honghui Hospital, Xi’an Jiaotong University, Xi'an, Shaanxi, China
| | - Yang Zhao
- Department of Orthopaedic Surgery, Honghui Hospital, Xi’an Jiaotong University, Xi'an, Shaanxi, China
- *Correspondence: Yao Lu, ; Yang Zhao,
| | - Yao Lu
- Department of Orthopaedic Surgery, Honghui Hospital, Xi’an Jiaotong University, Xi'an, Shaanxi, China
- *Correspondence: Yao Lu, ; Yang Zhao,
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3
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Nelson AL, Fontana G, Miclau E, Rongstad M, Murphy W, Huard J, Ehrhart N, Bahney C. Therapeutic approaches to activate the canonical Wnt pathway for bone regeneration. J Tissue Eng Regen Med 2022; 16:961-976. [PMID: 36112528 PMCID: PMC9826348 DOI: 10.1002/term.3349] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 08/05/2022] [Accepted: 09/01/2022] [Indexed: 01/12/2023]
Abstract
Activation of the canonical Wingless-related integration site (Wnt) pathway has been shown to increase bone formation and therefore has therapeutic potential for use in orthopedic conditions. However, attempts at developing an effective strategy to achieve Wnt activation has been met with several challenges. The inherent hydrophobicity of Wnt ligands makes isolating and purifying the protein difficult. To circumvent these challenges, many have sought to target extracellular inhibitors of the Wnt pathway, such as Wnt signaling pathway inhibitors Sclerostin and Dickkopf-1, or to use small molecules, ions and proteins to increase target Wnt genes. Here, we review systemic and localized bioactive approaches to enhance bone formation or improve bone repair through antibody-based therapeutics, synthetic Wnt surrogates and scaffold doping to target canonical Wnt. We conclude with a brief review of emerging technologies, such as mRNA therapy and Clustered Regularly Interspaced Short Palindromic Repeats technology, which serve as promising approaches for future clinical translation.
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Affiliation(s)
- Anna Laura Nelson
- Center for Regenerative and Personalized MedicineSteadman Philippon Research Institute (SPRI)VailColoradoUSA,School of Biomedical EngineeringColorado State UniversityFort CollinsColoradoUSA
| | - GianLuca Fontana
- Department of Orthopedics and RehabilitationUniversity of Wisconsin‐MadisonMadisonWisconsinUSA
| | - Elizabeth Miclau
- Center for Regenerative and Personalized MedicineSteadman Philippon Research Institute (SPRI)VailColoradoUSA
| | - Mallory Rongstad
- Department of Orthopedics and RehabilitationUniversity of Wisconsin‐MadisonMadisonWisconsinUSA
| | - William Murphy
- Department of Orthopedics and RehabilitationUniversity of Wisconsin‐MadisonMadisonWisconsinUSA,Department of Biomedical EngineeringUniversity of Wisconsin‐MadisonMadisonWisconsinUSA
| | - Johnny Huard
- Center for Regenerative and Personalized MedicineSteadman Philippon Research Institute (SPRI)VailColoradoUSA,Department of Clinical SciencesColorado State UniversityFort CollinsColoradoUSA
| | - Nicole Ehrhart
- School of Biomedical EngineeringColorado State UniversityFort CollinsColoradoUSA,Department of Clinical SciencesColorado State UniversityFort CollinsColoradoUSA
| | - Chelsea Bahney
- Center for Regenerative and Personalized MedicineSteadman Philippon Research Institute (SPRI)VailColoradoUSA,School of Biomedical EngineeringColorado State UniversityFort CollinsColoradoUSA,Department of Clinical SciencesColorado State UniversityFort CollinsColoradoUSA,Orthopaedic Trauma InstituteUniversity of California, San Francisco (UCSF)San FranciscoCaliforniaUSA
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4
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Tan Q, Li J, Yin Y, Shao W. The Role of Growth Factors in the Repair of Motor Injury. Front Pharmacol 2022; 13:898152. [PMID: 35662720 PMCID: PMC9160921 DOI: 10.3389/fphar.2022.898152] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 03/23/2022] [Indexed: 11/24/2022] Open
Affiliation(s)
- Qiaoyin Tan
- College of Teacher Education, Zhejiang Normal University, Jinhua, China
| | - Jiayu Li
- College of Physical Education and Health Sciences, Zhejiang Normal University, Jinhua, China
| | - Yanmin Yin
- College of Physical Education and Health Sciences, Zhejiang Normal University, Jinhua, China
| | - Weide Shao
- College of Physical Education and Health Sciences, Zhejiang Normal University, Jinhua, China
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5
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Campbell VK, Gately RP, Krishnasamy R, Burg D, Robertson GR, Gray NA. Midkine and chronic kidney disease-associated multisystem organ dysfunctions. Nephrol Dial Transplant 2021; 36:1577-1584. [PMID: 32542315 DOI: 10.1093/ndt/gfaa084] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Accepted: 02/18/2020] [Indexed: 12/18/2022] Open
Abstract
Chronic kidney disease (CKD) is a progressive multisystem condition with yet undefined mechanistic drivers and multiple implicated soluble factors. If identified, these factors could be targeted for therapeutic intervention for a disease that currently lacks specific treatment. There is increasing preclinical evidence that the heparin/endothelial glycocalyx-binding molecule midkine (MK) has a pathological role in multiple CKD-related, organ-specific disease processes, including CKD progression, hypertension, vascular and cardiac disease, bone disease and CKD-related cancers. Concurrent with this are studies documenting increases in circulating and urine MK proportional to glomerular filtration rate (GFR) loss in CKD patients and evidence that administering soluble MK reverses the protective effects of MK deficiency in experimental kidney disease. This review summarizes the growing body of evidence supporting MK's potential role in driving CKD-related multisystem disease, including MK's relationship with the endothelial glycocalyx, the deranged MK levels and glycocalyx profile in CKD patients and a proposed model of MK organ interplay in CKD disease processes and highlights the importance of ongoing research into MK's potential as a therapeutic target.
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Affiliation(s)
- Victoria K Campbell
- Renal Unit, Sunshine Coast University Hospital, Birtinya, Queensland, Australia.,University of Queensland, St Lucia, Queensland, Australia.,Intensive Care Unit, Sunshine Coast University Hospital, Birtinya, Queensland, Australia
| | - Ryan P Gately
- Renal Unit, Sunshine Coast University Hospital, Birtinya, Queensland, Australia
| | - Rathika Krishnasamy
- Renal Unit, Sunshine Coast University Hospital, Birtinya, Queensland, Australia.,University of Queensland, St Lucia, Queensland, Australia
| | | | | | - Nicholas A Gray
- Renal Unit, Sunshine Coast University Hospital, Birtinya, Queensland, Australia.,Sunshine Coast Health Institute, Birtinya, Queensland, Australia.,University of the Sunshine Coast, Sippy Downs, Queensland, Australia
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6
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Experimental agents to improve fracture healing: utilizing the WNT signaling pathway. Injury 2021; 52 Suppl 2:S44-S48. [PMID: 33234263 DOI: 10.1016/j.injury.2020.11.051] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 11/16/2020] [Indexed: 02/02/2023]
Abstract
The process of bone healing largely recapitulates bone development in the embryo and ideally achieves complete restoration of bone shape and structure. However, because successful fracture healing requires tight interactions of numerous cell types and signaling molecules, any disruption of this highly coordinated processes can result in delayed healing or even non-union formation. The rate of fracture healing complications in orthopedic patients is reported to be 5-20%. Therefore, there is a need for new therapeutic strategies to improve fracture healing in patients with healing complications. One treatment strategy would include the easy and safe application of a pharmacological agent inducing osteoanabolic effects during fracture healing. One potential promising molecular target is the osteoanabolic WNT signaling pathway. This pathway plays an important role during embryonic bone development, homeostasis, mechanotransduction, development of osteoporosis and bone regeneration. This review focuses on preclinical studies targeting WNT signaling molecules to accelerate fracture healing. The three main investigated antagonists of the WNT signaling pathway, which can be blocked experimentally by antibodies, are Sclerostin, Dickkopf-1 and Midkine. Treating animals with antibodies against these proteins enhanced bone formation in the fracture callus. This indicates a therapeutic potential for these antibodies to accelerate fracture healing in patients with orthopedic complications.
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7
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Schupbach D, Comeau-Gauthier M, Harvey E, Merle G. Wnt modulation in bone healing. Bone 2020; 138:115491. [PMID: 32569871 DOI: 10.1016/j.bone.2020.115491] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 06/09/2020] [Accepted: 06/11/2020] [Indexed: 12/31/2022]
Abstract
Genetic studies have been instrumental in the field of orthopaedics for finding tools to improve the standard management of fractures and delayed unions. The Wnt signaling pathway that is crucial for development and maintenance of many organs also has a very promising pathway for enhancement of bone regeneration. The Wnt pathway has been shown to have a direct effect on stem cells during bone regeneration, making Wnt a potential target to stimulate bone repair after trauma. A more complete view of how Wnt influences animal bone regeneration has slowly come to light. This review article provides an overview of studies done investigating the modulation of the canonical Wnt pathway in animal bone regeneration models. This not only includes a summary of the recent work done elucidating the roles of Wnt and β-catenin in fracture healing, but also the results of thirty transgenic studies, and thirty-eight pharmacological studies. Finally, we discuss the discontinuation of sclerostin clinical trials, ongoing clinical trials with lithium, the results of Dkk antibody clinical trials, the shift into combination therapies and the future opportunities to enhance bone repair and regeneration through the modulation of the Wnt signaling pathway.
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Affiliation(s)
- Drew Schupbach
- Department of Surgery, Division of Orthopedic Surgery, McGill University, Montreal General Hospital, 1650 Cedar Avenue, Room A10-110, Montreal, Québec H3G 1A4, Canada; Experimental Surgery, Faculty of Medicine, McGill University, Montreal General Hospital, 1650 Cedar Avenue, Room A7-117, Montreal, Québec H3G 1A4, Canada.
| | - Marianne Comeau-Gauthier
- Department of Surgery, Division of Orthopedic Surgery, McGill University, Montreal General Hospital, 1650 Cedar Avenue, Room A10-110, Montreal, Québec H3G 1A4, Canada; Experimental Surgery, Faculty of Medicine, McGill University, Montreal General Hospital, 1650 Cedar Avenue, Room A7-117, Montreal, Québec H3G 1A4, Canada.
| | - Edward Harvey
- Department of Surgery, Division of Orthopedic Surgery, McGill University, Montreal General Hospital, 1650 Cedar Avenue, Room A10-110, Montreal, Québec H3G 1A4, Canada.
| | - Geraldine Merle
- Department of Surgery, Division of Orthopedic Surgery, McGill University, Montreal General Hospital, 1650 Cedar Avenue, Room A10-110, Montreal, Québec H3G 1A4, Canada; Department of Chemical Engineering, Polytechnique Montreal, 2500, chemin de Polytechnique, Montréal, Québec H3T 1J4, Canada.
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8
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Herradon G, Ramos-Alvarez MP, Gramage E. Connecting Metainflammation and Neuroinflammation Through the PTN-MK-RPTPβ/ζ Axis: Relevance in Therapeutic Development. Front Pharmacol 2019; 10:377. [PMID: 31031625 PMCID: PMC6474308 DOI: 10.3389/fphar.2019.00377] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Accepted: 03/26/2019] [Indexed: 12/15/2022] Open
Abstract
Inflammation is a common factor of pathologies such as obesity, type 2 diabetes or neurodegenerative diseases. Chronic inflammation is considered part of the pathogenic mechanisms of different disorders associated with aging. Interestingly, peripheral inflammation and the associated metabolic alterations not only facilitate insulin resistance and diabetes but also neurodegenerative disorders. Therefore, the identification of novel pathways, common to the development of these diseases, which modulate the immune response and signaling is key. It will provide highly relevant information to advance our knowledge of the multifactorial process of aging, and to establish new biomarkers and/or therapeutic targets to counteract the underlying chronic inflammatory processes. One novel pathway that regulates peripheral and central immune responses is triggered by the cytokines pleiotrophin (PTN) and midkine (MK), which bind its receptor, Receptor Protein Tyrosine Phosphatase (RPTP) β/ζ, and inactivate its phosphatase activity. In this review, we compile a growing body of knowledge suggesting that PTN and MK modulate the immune response and/or inflammation in different pathologies characterized by peripheral inflammation associated with insulin resistance, such as aging, and in central disorders characterized by overt neuroinflammation, such as neurodegenerative diseases and endotoxemia. Evidence strongly suggests that regulation of the PTN and MK signaling pathways may provide new therapeutic opportunities particularly in those neurological disorders characterized by increased PTN and/or MK cerebral levels and neuroinflammation. Importantly, we discuss existing therapeutics, and others being developed, that modulate these signaling pathways, and their potential use in pathologies characterized by overt neuroinflammation.
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Affiliation(s)
- Gonzalo Herradon
- Departamento de Ciencias Farmacéuticas y de la Salud, Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities, Madrid, Spain
| | - M Pilar Ramos-Alvarez
- Departmento de Química y Bioquímica, Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities, Madrid, Spain
| | - Esther Gramage
- Departamento de Ciencias Farmacéuticas y de la Salud, Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities, Madrid, Spain
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9
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Haffner-Luntzer M, Fischer V, Prystaz K, Liedert A, Ignatius A. The inflammatory phase of fracture healing is influenced by oestrogen status in mice. Eur J Med Res 2017; 22:23. [PMID: 28683813 PMCID: PMC5501454 DOI: 10.1186/s40001-017-0264-y] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Accepted: 06/22/2017] [Indexed: 12/20/2022] Open
Abstract
Background Fracture healing is known to be delayed in postmenopausal, osteoporotic females under oestrogen-deficient conditions. Confirming this, experimental studies demonstrated impaired callus formation in ovariectomised animals. Oestrogen-deficiency is known to affect the immune system and the inflammatory response during wound healing. Because a balanced immune response is required for proper bone healing, we were interested to ascertain whether the early immune response after facture is affected by oestrogen depletion. Methods To address the above question, female mice received either a bilateral ovariectomy (OVX) or were sham-operated, and femur osteotomy was performed 8 weeks after OVX/sham operation. The effects of OVX on the presence of immune cells and pro-inflammatory cytokines were evaluated by flow cytometry and immunohistochemistry of the fracture calli on days 1 and 3 after fracture. Results One day after fracture, immune cell numbers and populations in the fracture haematoma did not differ between OVX- and sham-mice. However, on day 3 after fracture, OVX-mice displayed significantly greater numbers of neutrophils. Local expression of the oestrogen-responsive and pro-inflammatory cytokine midkine (Mdk) and interleukin-6 (IL-6) expression in the fracture callus were increased in OVX-mice on day 3 after fracture compared with sham-mice, indicating that both factors might be involved in the increased presence of neutrophils. Confirming this, Mdk-antibody treatment decreased the number of neutrophils in the fracture callus and reduced local IL-6 expression in OVX-mice. Conclusions These data indicate that oestrogen-deficiency influences the early inflammatory phase after fracture. This may contribute to delayed fracture healing after oestrogen depletion.
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Affiliation(s)
- Melanie Haffner-Luntzer
- Institute of Orthopaedic Research and Biomechanics, University Medical Centre Ulm, Helmholtzstraße 9, 89081, Ulm, Germany.
| | - Verena Fischer
- Institute of Orthopaedic Research and Biomechanics, University Medical Centre Ulm, Helmholtzstraße 9, 89081, Ulm, Germany
| | - Katja Prystaz
- Institute of Orthopaedic Research and Biomechanics, University Medical Centre Ulm, Helmholtzstraße 9, 89081, Ulm, Germany
| | - Astrid Liedert
- Institute of Orthopaedic Research and Biomechanics, University Medical Centre Ulm, Helmholtzstraße 9, 89081, Ulm, Germany
| | - Anita Ignatius
- Institute of Orthopaedic Research and Biomechanics, University Medical Centre Ulm, Helmholtzstraße 9, 89081, Ulm, Germany
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Kushwaha P, Khedgikar V, Haldar S, Gautam J, Mulani FA, Thulasiram HV, Trivedi R. Azadirachta indica triterpenoids promote osteoblast differentiation and mineralization in vitro and in vivo. Bioorg Med Chem Lett 2016; 26:3719-24. [PMID: 27317644 DOI: 10.1016/j.bmcl.2016.05.076] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Revised: 05/17/2016] [Accepted: 05/27/2016] [Indexed: 12/22/2022]
Abstract
Terpenoids were isolated using chromatographic purification through solvent purification technique and identified as Azadirone (1), Epoxyazadiradione (2) Azadiradione (3) Gedunin (4) Nimbin (5) Salannin (6) Azadirachtin A (7) and Azadirachtin B (8) from Azadirachta indica. Out of eight compounds, only three compounds had osteogenic activity and enhanced osteoblast proliferation, differentiation and mineralization in osteoblast cells. Active compounds stimulated osteogenic genes ALP, RunX-2 and OCN expressions in vitro, but Azadirachtin A had a maximum ability to stimulate osteoblast differentiation and mineralization compared to other two active compounds. For in vivo study, Azadirachtin A injected subcutaneously in pups, which enhanced osteogenic gene expressions and promoted bone formation rate significantly. Here, we conclude that active compounds of Azadirachta indica have osteogenic activity and Azadirachtin A has a beneficial effects on bone.
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Affiliation(s)
- Priyanka Kushwaha
- CSIR-Central Drug Research Institute, Lucknow, Uttar Pradesh 226031, India
| | - Vikram Khedgikar
- CSIR-Central Drug Research Institute, Lucknow, Uttar Pradesh 226031, India
| | - Saikat Haldar
- Chemical Biology Unit, Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
| | - Jyoti Gautam
- CSIR-Central Drug Research Institute, Lucknow, Uttar Pradesh 226031, India
| | - Fayaj A Mulani
- Chemical Biology Unit, Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
| | - Hirekodathakallu V Thulasiram
- Chemical Biology Unit, Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India; CSIR-Institute of Genomics and Integrative Biology, Mall Road, New Delhi 110007, India.
| | - Ritu Trivedi
- CSIR-Central Drug Research Institute, Lucknow, Uttar Pradesh 226031, India.
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11
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Jee YH, Lebenthal Y, Chaemsaithong P, Yan G, Peran I, Wellstein A, Romero R, Baron J. Midkine and Pleiotrophin Concentrations in Amniotic Fluid in Healthy and Complicated Pregnancies. PLoS One 2016; 11:e0153325. [PMID: 27089523 PMCID: PMC4835047 DOI: 10.1371/journal.pone.0153325] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Accepted: 03/28/2016] [Indexed: 01/14/2023] Open
Abstract
Background Midkine (MDK) and pleiotrophin (PTN) are heparin-binding growth factors that, in rodents, are highly expressed in early life and decrease to undetectable levels by adulthood. The potential roles of MDK and PTN in human growth and development are not completely elucidated. Method and Findings To delineate the role of MDK and PTN in human development, we developed high sensitivity assays to measure their concentrations in amniotic fluid (AF) at various gestational ages in both healthy and complicated pregnancies. We found that both of these growth factors could be readily measured in AF and that the concentrations were higher than most cytokines previously reported in AF. Conclusion The concentration of MDK but not that of PTN declined with gestational age. Both MDK and PTN concentrations were found to be lower in pregnancies that were complicated by chorioamnionitis at term, raising the possibility that these growth factors might be useful as markers for infection.
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Affiliation(s)
- Youn Hee Jee
- Section on Growth and Development, Program on Developmental Endocrinology and Genetics, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Yael Lebenthal
- Section on Growth and Development, Program on Developmental Endocrinology and Genetics, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland, United States of America
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Piya Chaemsaithong
- Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Detroit, Michigan, United States of America
| | - Gai Yan
- Department of Oncology, Georgetown University Medical Center and Lombardi Comprehensive Cancer Center, Washington DC, United States of America
| | - Ivana Peran
- Department of Oncology, Georgetown University Medical Center and Lombardi Comprehensive Cancer Center, Washington DC, United States of America
| | - Anton Wellstein
- Department of Oncology, Georgetown University Medical Center and Lombardi Comprehensive Cancer Center, Washington DC, United States of America
| | - Roberto Romero
- Perinatology Research Branch, Program for Perinatal Research and Obstetrics, Division of Intramural Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Detroit, Michigan, United States of America
| | - Jeffrey Baron
- Section on Growth and Development, Program on Developmental Endocrinology and Genetics, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland, United States of America
- * E-mail:
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12
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Serinkan Cinemre FB, Cinemre H, Karacaer C, Aydemir B, Nalbant A, Kaya T, Tamer A. Midkine in vitamin D deficiency and its association with anti-Saccharomyces cerevisiae antibodies. Inflamm Res 2015; 65:143-50. [PMID: 26566633 DOI: 10.1007/s00011-015-0898-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Revised: 10/30/2015] [Accepted: 11/02/2015] [Indexed: 12/19/2022] Open
Abstract
OBJECTIVES AND DESIGN The growth factor midkine (MK) is a protein that is involved in cancer, inflammation, immunity. Vitamin D is a potent immunomodulator. Anti-Saccharomyces cerevisiae antibody (ASCA) is reported in autoimmune disorders, some of which are among the causes of vitamin D deficiency. The objective of this study was to investigate a possible association of MK and ASCA with vitamin D deficiency. MATERIALS AND METHODS 208 adults presented to internal medicine outpatient clinic for history and physical examination has been studied. Serum biochemistry, vitamin D, MK, ASCA-IgG and -IgA, IL-1β, IL-6, IL-8, TNF-α, PDGF, VEGF were obtained. RESULTS Vitamin D deficiency was 74.2%. Serum MK level was significantly higher in vitamin D-deficient compared to vitamin D-sufficient individuals (1138.1 ± 262.8 vs 958.6 ± 189 pg/mL, respectively; P < 0.009). Serum MK levels were also significantly higher in both ASCA-IgG and -IgA positives compared to negatives (1318.5 ± 160.3 vs 1065.5 ± 256.1, P = 0.008 and 1347.7 ± 229.7 vs 1070.1 ± 250.9 pg/mL, P = 0.011, respectively). Vitamin D was significantly lower in ASCA positives (P = 0.044).Vitamin D showed positive correlation with IL-1β (r 0.338, P < 0.009) and negative correlation with VEGF (r -0.366, P < 0.004). CONCLUSIONS MK was significantly elevated in vitamin D deficiency and associated with ASCA positivity which was significantly increased in vitamin D deficiency. These findings suggested that molecular mechanism of vitamin D deficiency may be related with some inflammatory processes.
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Affiliation(s)
- F B Serinkan Cinemre
- Department of Biochemistry, Sakarya Üniversitesi Tıp Fakültesi Dekanlığı, Sakarya University School of Medicine, Korucuk Kampüsü, Konuralp Bulvarı No:81/1, 54187, Sakarya, Turkey.
| | - Hakan Cinemre
- Department of Internal Medicine, Sakarya University School of Medicine, Sakarya, Turkey
| | - Cengiz Karacaer
- Department of Internal Medicine, Sakarya University School of Medicine, Sakarya, Turkey
| | - Birsen Aydemir
- Department of Biophysics, Sakarya University School of Medicine, Sakarya, Turkey
| | - Ahmet Nalbant
- Department of Internal Medicine, Sakarya University School of Medicine, Sakarya, Turkey
| | - Tezcan Kaya
- Department of Internal Medicine, Sakarya University School of Medicine, Sakarya, Turkey
| | - Ali Tamer
- Department of Internal Medicine, Sakarya University School of Medicine, Sakarya, Turkey
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Xu C, Zhu S, Wu M, Zhao Y, Han W, Yu Y. The therapeutic effect of rhMK on osteoarthritis in mice, induced by destabilization of the medial meniscus. Biol Pharm Bull 2015; 37:1803-10. [PMID: 25366485 DOI: 10.1248/bpb.b14-00470] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Osteoarthritis (OA) is a worldwide disease in aged people, causing not only physical suffering to the patients themselves, but also a great burden on their families and on society. Here we used a mouse OA model induced by destabilization of the medial meniscus (DMM), and studied the therapeutic effect of recombinant human midkine (rhMK) on this OA model. Our results indicated that the DMM surgery induced mechanical allodynia and locomotor activity obstacles, together with cartilage injury in the C57BL/6 mice. The rhMK treatment mitigated the OA related mechanical allodynia, improved locomotor activity capacity, and prevented degradation of the cartilage. Considering the safety issue of rhMK used as a biologic, we also inspected the main organs in the rhMK treated mice throughout the process and found no pathological change. These results suggest that rhMK could be used as a biologic to treat OA or OA related pain.
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Affiliation(s)
- Chuanying Xu
- School of Agriculture and Biology, Shanghai Jiao Tong University
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14
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Haffner-Luntzer M, Heilmann A, Rapp AE, Beie S, Schinke T, Amling M, Ignatius A, Liedert A. Midkine-deficiency delays chondrogenesis during the early phase of fracture healing in mice. PLoS One 2014; 9:e116282. [PMID: 25551381 PMCID: PMC4281158 DOI: 10.1371/journal.pone.0116282] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Accepted: 12/05/2014] [Indexed: 01/02/2023] Open
Abstract
The growth and differentiation factor midkine (Mdk) plays an important role in bone development and remodeling. Mdk-deficient mice display a high bone mass phenotype when aged 12 and 18 months. Furthermore, Mdk has been identified as a negative regulator of mechanically induced bone formation and it induces pro-chondrogenic, pro-angiogenic and pro-inflammatory effects. Together with the finding that Mdk is expressed in chondrocytes during fracture healing, we hypothesized that Mdk could play a complex role in endochondral ossification during the bone healing process. Femoral osteotomies stabilized using an external fixator were created in wildtype and Mdk-deficient mice. Fracture healing was evaluated 4, 10, 21 and 28 days after surgery using 3-point-bending, micro-computed tomography, histology and immunohistology. We demonstrated that Mdk-deficient mice displayed delayed chondrogenesis during the early phase of fracture healing as well as significantly decreased flexural rigidity and moment of inertia of the fracture callus 21 days after fracture. Mdk-deficiency diminished beta-catenin expression in chondrocytes and delayed presence of macrophages during early fracture healing. We also investigated the impact of Mdk knockdown using siRNA on ATDC5 chondroprogenitor cells in vitro. Knockdown of Mdk expression resulted in a decrease of beta-catenin and chondrogenic differentiation-related matrix proteins, suggesting that delayed chondrogenesis during fracture healing in Mdk-deficient mice may be due to a cell-autonomous mechanism involving reduced beta-catenin signaling. Our results demonstrated that Mdk plays a crucial role in the early inflammation phase and during the development of cartilaginous callus in the fracture healing process.
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Affiliation(s)
- Melanie Haffner-Luntzer
- Institute of Orthopaedic Research and Biomechanics, University Medical Center Ulm, Ulm, Germany
| | - Aline Heilmann
- Institute of Orthopaedic Research and Biomechanics, University Medical Center Ulm, Ulm, Germany
| | - Anna Elise Rapp
- Institute of Orthopaedic Research and Biomechanics, University Medical Center Ulm, Ulm, Germany
| | - Simon Beie
- Institute of Orthopaedic Research and Biomechanics, University Medical Center Ulm, Ulm, Germany
| | - Thorsten Schinke
- Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Michael Amling
- Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Anita Ignatius
- Institute of Orthopaedic Research and Biomechanics, University Medical Center Ulm, Ulm, Germany
| | - Astrid Liedert
- Institute of Orthopaedic Research and Biomechanics, University Medical Center Ulm, Ulm, Germany
- * E-mail:
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15
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Muramatsu T, Kadomatsu K. Midkine: an emerging target of drug development for treatment of multiple diseases. Br J Pharmacol 2014; 171:811-3. [PMID: 24460672 DOI: 10.1111/bph.12571] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
UNLABELLED Midkine is a multifunctional factor and has anti-apoptotic, migration-promoting, angiogenic, anti-microbial and other activities. Midkine ameliorates ischemic injury in the heart and brain, enhances oocyte maturation, and is involved in neurogenesis. On the other hand, midkine is an important factor in the etiology of various diseases, especially those with inflammatory backgrounds. Furthermore, midkine is overexpressed in most malignant tumors and plays roles in their invasive phenotypes as well as in their resistance to chemotherapeutics. Therefore, midkine itself is expected to be useful for the treatment of brain and heart diseases, while midkine inhibitors are promising for the treatment of malignant tumors, multiple sclerosis, restenosis, renal diseases, hypertension and osteoporosis. Blood levels of midkine are also expected to be helpful as disease markers, especially as cancer markers. LINKED ARTICLES This article is part of a themed section on Midkine. To view the other articles in this section visit http://dx.doi.org/10.1111/bph.2014.171.issue-4.
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Affiliation(s)
- Takashi Muramatsu
- Department of Health Science, Faculty of Psychological and Physical Science, Aichi Gakuin University, 12 Araike, Iwasaki-cho, Nisshin, Aichi, 470-0195, Japan
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