1
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Multi-omics analysis based on 3D-bioprinted models innovates therapeutic target discovery of osteosarcoma. Bioact Mater 2022; 18:459-470. [PMID: 35415297 PMCID: PMC8971536 DOI: 10.1016/j.bioactmat.2022.03.029] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 03/03/2022] [Accepted: 03/22/2022] [Indexed: 02/04/2023] Open
Abstract
Current in vitro models for osteosarcoma investigation and drug screening, including two-dimensional (2D) cell culture and tumour spheroids (i.e. cancer stem-like cells), lack extracellular matrix (ECM). Therefore, results from traditional models may not reflect real pathological processes in genuine osteosarcoma histological structures. Here, we report a three-dimensional (3D) bioprinted osteosarcoma model (3DBPO) that contains osteosarcoma cells and shrouding ECM analogue in a 3D frame. Photo-crosslinkable bioinks composed of gelatine methacrylamide and hyaluronic acid methacrylate mimicked tumour ECM. We performed multi-omics analysis, including transcriptomics and DNA methylomics, to determine differences between the 3DBPO model and traditional models. Compared with 2D models and tumour spheroids, our 3DBPO model showed significant changes in cell cycle, metabolism, adherens junctions, and other pathways associated with epigenetic regulation. The 3DBPO model was more sensitive to therapies targeted to the autophagy pathway. We showed that simulating ECM yielded different osteosarcoma cell metabolic characteristics and drug sensitivity in the 3DBPO model compared with classical models. We suggest 3D printed osteosarcoma models can be used in osteosarcoma fundamental and translational research, which may contribute to novel therapeutic strategy discovery. 3DBPO model behaved better than traditional 2D and CSC models in simulating in vivo osteosarcoma microenvironment. 3DBPO model showed significant changes in many signaling pathways associated with epigenetic regulation. 3DBPO model was particularly sensitive to autophagy-related drugs.
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2
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Wilson KM, Jagger AM, Walker M, Seinkmane E, Fox JM, Kröger R, Genever P, Ungar D. Glycans modify mesenchymal stem cell differentiation to impact on the function of resulting osteoblasts. J Cell Sci 2018; 131:jcs.209452. [PMID: 29361539 PMCID: PMC5868951 DOI: 10.1242/jcs.209452] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Accepted: 01/02/2018] [Indexed: 12/13/2022] Open
Abstract
Glycans are inherently heterogeneous, yet glycosylation is essential in eukaryotes, and glycans show characteristic cell type-dependent distributions. By using an immortalized human mesenchymal stromal cell (MSC) line model, we show that both N- and O-glycan processing in the Golgi functionally modulates early steps of osteogenic differentiation. We found that inhibiting O-glycan processing in the Golgi prior to the start of osteogenesis inhibited the mineralization capacity of the formed osteoblasts 3 weeks later. In contrast, inhibition of N-glycan processing in MSCs altered differentiation to enhance the mineralization capacity of the osteoblasts. The effect of N-glycans on MSC differentiation was mediated by the phosphoinositide-3-kinase (PI3K)/Akt pathway owing to reduced Akt phosphorylation. Interestingly, by inhibiting PI3K during the first 2 days of osteogenesis, we were able to phenocopy the effect of inhibiting N-glycan processing. Thus, glycan processing provides another layer of regulation that can modulate the functional outcome of differentiation. Glycan processing can thereby offer a novel set of targets for many therapeutically attractive processes. Summary: Both N- and O-glycan processing modulate MSC differentiation early during osteogenesis to influence mineral formation. Inhibition of N-glycan processing increases mineralization.
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Affiliation(s)
| | | | - Matthew Walker
- Department of Biology, University of York, York YO10 5DD, UK
| | | | - James M Fox
- Department of Biology, University of York, York YO10 5DD, UK
| | - Roland Kröger
- Department of Physics, University of York, York YO10 5DD, UK
| | - Paul Genever
- Department of Biology, University of York, York YO10 5DD, UK
| | - Daniel Ungar
- Department of Biology, University of York, York YO10 5DD, UK
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3
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Establishment of an in vitro monolayer model of macular corneal dystrophy. J Transl Med 2016; 96:1311-1326. [PMID: 27748734 DOI: 10.1038/labinvest.2016.102] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 08/13/2016] [Accepted: 08/15/2016] [Indexed: 11/08/2022] Open
Abstract
Macular corneal dystrophy (MCD) is characterized by multiple punctate gray-white opacities in the corneal stromal region, due to the accumulation of abnormally sulfated keratan sulfates. We attempted to develop an in vitro model of MCD by simulating the sulfation inhibition using sodium chlorate, a chemical inhibitor of 3'-phosphoadenosine-5'-phosphosulfate (PAPs). The SEM and micro-Raman spectroscopy results showed the hallmark feature of MCD. Further the gene expression studies elucidated the direct effect of sulfation inhibition on the WNT pathway, that in turn downregulated production of matrix metalloproteinases (MMPs), which causes abnormal matrix deposits leading to loss of transparency in vivo. It also resulted in downregulation of integrin and cadherin complexation that leads to disruption of the epithelial layer in the MCD affected corneas. This study offers a promising initial step toward establishing a relevant in vitro MCD disease model, to assess signaling transduction pathways and devise potential treatment strategies based on MMP administration to the MCD affected corneas.
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4
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The heparanase/heparan sulfate proteoglycan axis: A potential new therapeutic target in sarcomas. Cancer Lett 2016; 382:245-254. [PMID: 27666777 DOI: 10.1016/j.canlet.2016.09.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Revised: 09/08/2016] [Accepted: 09/08/2016] [Indexed: 12/29/2022]
Abstract
Heparanase, the only known mammalian endoglycosidase degrading heparan sulfate (HS) chains of HS proteoglycans (HSPG), is a highly versatile protein affecting multiple events in tumor cells and their microenvironment. In several malignancies, deregulation of the heparanase/HSPG system has been implicated in tumor progression, hence representing a valuable therapeutic target. Currently, multiple agents interfering with the heparanase/HSPG axis are under clinical investigation. Sarcomas are characterized by a high biomolecular complexity and multiple levels of interconnection with microenvironment sustaining their growth and progression. The clinical management of advanced diseases remains a challenge. In several sarcoma subtypes, high levels of heparanase expression have been correlated with poor prognosis associated factors. On the other hand, expression of cell surface-associated HSPGs (i.e. glypicans and syndecans) has been found altered in specific sarcoma subtypes. Recent studies provided the preclinical proof-of-principle of the role of the heparanase/HSPG axis as therapeutic target in various sarcoma subtypes. Although currently there are no clinical trials evaluating agents targeting heparanase and/or HSPGs in sarcomas, we here provide arguments for this strategy as potentially able to implement the therapeutic options for sarcoma patients.
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5
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Wang J, Wu P, Chen PC, Lee C, Chen W, Hung S. Generation of Osteosarcomas from a Combination of Rb Silencing and c-Myc Overexpression in Human Mesenchymal Stem Cells. Stem Cells Transl Med 2016; 6:512-526. [PMID: 28191765 PMCID: PMC5442803 DOI: 10.5966/sctm.2015-0226] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Accepted: 07/15/2016] [Indexed: 12/18/2022] Open
Abstract
Osteosarcoma (OS) was a malignant tumor occurring with unknown etiology that made prevention and early diagnosis difficult. Mesenchymal stem cells (MSCs), which were found in bone marrow, were claimed to be a possible origin of OS but with little direct evidence. We aimed to characterize OS cells transformed from human MSCs (hMSCs) and identify their association with human primary OS cells and patient survival. Genetic modification with p53 or retinoblastoma (Rb) knockdown and c-Myc or Ras overexpression was applied for hMSC transformation. Transformed cells were assayed for proliferation, differentiation, tumorigenecity, and gene expression profile. Only the combination of Rb knockdown and c-Myc overexpression successfully transformed hMSCs derived from four individual donors, with increasing cell proliferation, decreasing cell senescence rate, and increasing ability to form colonies and spheres in serum-free medium. These transformed cells lost the expression of certain surface markers, increased in osteogenic potential, and decreased in adipogenic potential. After injection in immunodeficient mice, these cells formed OS-like tumors, as evidenced by radiographic analyses and immunohistochemistry of various OS markers. Microarray with cluster analysis revealed that these transformed cells have gene profiles more similar to patient-derived primary OS cells than their normal MSC counterparts. Most importantly, comparison of OS patient tumor samples revealed that a combination of Rb loss and c-Myc overexpression correlated with a decrease in patient survival. This study successfully transformed human MSCs to OS-like cells by Rb knockdown and c-Myc overexpression that may be a useful platform for further investigation of preventive and target therapy for human OS. Stem Cells Translational Medicine 2017;6:512-526.
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Affiliation(s)
- Jir‐You Wang
- Department of Orthopaedics and Traumatology, Taipei Veterans General Hospital, Taipei, Taiwan, Republic of China
- Department of Orthopaedics, Therapeutical and Research Center of Musculoskeletal Tumor, Taipei Veterans General Hospital, Taipei, Taiwan, Republic of China
- Institute of Traditional Medicine, School of Medicine, National Yang‐Ming University, Taipei, Taiwan, Republic of China
| | - Po‐Kuei Wu
- Department of Orthopaedics and Traumatology, Taipei Veterans General Hospital, Taipei, Taiwan, Republic of China
- Department of Orthopaedics, Therapeutical and Research Center of Musculoskeletal Tumor, Taipei Veterans General Hospital, Taipei, Taiwan, Republic of China
| | - Paul Chih‐Hsueh Chen
- Department of Orthopaedics, Therapeutical and Research Center of Musculoskeletal Tumor, Taipei Veterans General Hospital, Taipei, Taiwan, Republic of China
- Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, Republic of China
| | - Chia‐Wen Lee
- Department of Orthopaedics and Traumatology, Taipei Veterans General Hospital, Taipei, Taiwan, Republic of China
- Department of Orthopaedics, Therapeutical and Research Center of Musculoskeletal Tumor, Taipei Veterans General Hospital, Taipei, Taiwan, Republic of China
| | - Wei‐Ming Chen
- Department of Orthopaedics and Traumatology, Taipei Veterans General Hospital, Taipei, Taiwan, Republic of China
- Department of Orthopaedics, Therapeutical and Research Center of Musculoskeletal Tumor, Taipei Veterans General Hospital, Taipei, Taiwan, Republic of China
| | - Shih‐Chieh Hung
- Department of Orthopaedics and Traumatology, Taipei Veterans General Hospital, Taipei, Taiwan, Republic of China
- Department of Orthopaedics, Therapeutical and Research Center of Musculoskeletal Tumor, Taipei Veterans General Hospital, Taipei, Taiwan, Republic of China
- Institute of Traditional Medicine, School of Medicine, National Yang‐Ming University, Taipei, Taiwan, Republic of China
- Institute of Clinical Medicine, School of Medicine, National Yang‐Ming University, Taipei, Taiwan, Republic of China
- Department of Pharmacology, School of Medicine, National Yang‐Ming University, Taipei, Taiwan, Republic of China
- Medical Research, Taipei Veterans General Hospital, Taipei, Taiwan, Republic of China
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan, Republic of China
- Integrative Stem Cell Center, China Medical University Hospital, Taichung, Taiwan, Republic of China
- Graduate Institute of Clinical Medical Science, China Medical University, Taichung, Taiwan, Republic of China
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6
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Leung AWY, Dragowska WH, Ricaurte D, Kwok B, Mathew V, Roosendaal J, Ahluwalia A, Warburton C, Laskin JJ, Stirling PC, Qadir MA, Bally MB. 3'-Phosphoadenosine 5'-phosphosulfate synthase 1 (PAPSS1) knockdown sensitizes non-small cell lung cancer cells to DNA damaging agents. Oncotarget 2016. [PMID: 26220590 PMCID: PMC4627299 DOI: 10.18632/oncotarget.3635] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Standard treatment for advanced non-small cell lung cancer (NSCLC) with no known driver mutation is platinum-based chemotherapy, which has a response rate of only 30–33%. Through an siRNA screen, 3′-phosphoadenosine 5′-phosphosulfate (PAPS) synthase 1 (PAPSS1), an enzyme that synthesizes the biologically active form of sulfate PAPS, was identified as a novel platinum-sensitizing target in NSCLC cells. PAPSS1 knockdown in combination with low-dose (IC10) cisplatin reduces clonogenicity of NSCLC cells by 98.7% (p < 0.001), increases DNA damage, and induces G1/S phase cell cycle arrest and apoptosis. PAPSS1 silencing also sensitized NSCLC cells to other DNA crosslinking agents, radiation, and topoisomerase I inhibitors, but not topoisomerase II inhibitors. Chemo-sensitization was not observed in normal epithelial cells. Knocking out the PAPSS1 homolog did not sensitize yeast to cisplatin, suggesting that sulfate bioavailability for amino acid synthesis is not the cause of sensitization to DNA damaging agents. Rather, sensitization may be due to sulfation reactions involved in blocking the action of DNA damaging agents, facilitating DNA repair, promoting cancer cell survival under therapeutic stress or reducing the bioavailability of DNA damaging agents. Our study demonstrates for the first time that PAPSS1 could be targeted to improve the activity of multiple anticancer agents used to treat NSCLC.
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Affiliation(s)
- Ada W Y Leung
- Experimental Therapeutics, BC Cancer Research Centre, Vancouver, BC, V5Z 1L3, Canada.,Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, V6T 2B5, Canada
| | - Wieslawa H Dragowska
- Experimental Therapeutics, BC Cancer Research Centre, Vancouver, BC, V5Z 1L3, Canada
| | - Daniel Ricaurte
- Experimental Therapeutics, BC Cancer Research Centre, Vancouver, BC, V5Z 1L3, Canada
| | - Brian Kwok
- Experimental Therapeutics, BC Cancer Research Centre, Vancouver, BC, V5Z 1L3, Canada
| | - Veena Mathew
- Terry Fox Laboratory, BC Cancer Research Centre, Vancouver, BC, V5Z 1L3, Canada
| | - Jeroen Roosendaal
- Experimental Therapeutics, BC Cancer Research Centre, Vancouver, BC, V5Z 1L3, Canada.,Department of Pharmaceutical Sciences, Utrecht University, Utrecht, TB, 3508, The Netherlands
| | - Amith Ahluwalia
- Experimental Therapeutics, BC Cancer Research Centre, Vancouver, BC, V5Z 1L3, Canada
| | - Corinna Warburton
- Experimental Therapeutics, BC Cancer Research Centre, Vancouver, BC, V5Z 1L3, Canada
| | - Janessa J Laskin
- Medical Oncology, BC Cancer Research Centre, Vancouver, BC, V5Z 1L3, Canada.,Department of Medicine, University of British Columbia, Vancouver, BC, V5Z 1M9, Canada
| | - Peter C Stirling
- Terry Fox Laboratory, BC Cancer Research Centre, Vancouver, BC, V5Z 1L3, Canada.,Department of Medical Genetics, University of British Columbia, Vancouver, BC, V6H 3N1, Canada
| | - Mohammed A Qadir
- Experimental Therapeutics, BC Cancer Research Centre, Vancouver, BC, V5Z 1L3, Canada
| | - Marcel B Bally
- Experimental Therapeutics, BC Cancer Research Centre, Vancouver, BC, V5Z 1L3, Canada.,Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, V6T 2B5, Canada.,Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, BC, V6T 1Z3, Canada.,Centre for Drug Research and Development, Vancouver, BC, V6T 1Z3, Canada
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7
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Alginate/Poly(γ-glutamic Acid) Base Biocompatible Gel for Bone Tissue Engineering. BIOMED RESEARCH INTERNATIONAL 2015; 2015:185841. [PMID: 26504784 PMCID: PMC4609339 DOI: 10.1155/2015/185841] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Revised: 08/05/2015] [Accepted: 08/06/2015] [Indexed: 11/23/2022]
Abstract
A technique for synthesizing biocompatible hydrogels by cross-linking calcium-form poly(γ-glutamic acid), alginate sodium, and Pluronic F-127 was created, in which alginate can be cross-linked by Ca2+ from Ca–γ-PGA directly and γ-PGA molecules introduced into the alginate matrix to provide pH sensitivity and hemostasis. Mechanical properties, swelling behavior, and blood compatibility were investigated for each hydrogel compared with alginate and for γ-PGA hydrogel with the sodium form only. Adding F-127 improves mechanical properties efficiently and influences the temperature-sensitive swelling of the hydrogels but also has a minor effect on pH-sensitive swelling and promotes anticoagulation. MG-63 cells were used to test biocompatibility. Gelation occurred gradually through change in the elastic modulus as the release of calcium ions increased over time and caused ionic cross-linking, which promotes the elasticity of gel. In addition, the growth of MG-63 cells in the gel reflected nontoxicity. These results showed that this biocompatible scaffold has potential for application in bone materials.
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8
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Bionaz M, Monaco E, Wheeler MB. Transcription Adaptation during In Vitro Adipogenesis and Osteogenesis of Porcine Mesenchymal Stem Cells: Dynamics of Pathways, Biological Processes, Up-Stream Regulators, and Gene Networks. PLoS One 2015; 10:e0137644. [PMID: 26398344 PMCID: PMC4580618 DOI: 10.1371/journal.pone.0137644] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Accepted: 07/27/2015] [Indexed: 12/20/2022] Open
Abstract
The importance of mesenchymal stem cells (MSC) for bone regeneration is growing. Among MSC the bone marrow-derived stem cells (BMSC) are considered the gold standard in tissue engineering and regenerative medicine; however, the adipose-derived stem cells (ASC) have very similar properties and some advantages to be considered a good alternative to BMSC. The molecular mechanisms driving adipogenesis are relatively well-known but mechanisms driving osteogenesis are poorly known, particularly in pig. In the present study we have used transcriptome analysis to unravel pathways and biological functions driving in vitro adipogenesis and osteogenesis in BMSC and ASC. The analysis was performed using the novel Dynamic Impact Approach and functional enrichment analysis. In addition, a k-mean cluster analysis in association with enrichment analysis, networks reconstruction, and transcription factors overlapping analysis were performed in order to uncover the coordination of biological functions underlining differentiations. Analysis indicated a larger and more coordinated transcriptomic adaptation during adipogenesis compared to osteogenesis, with a larger induction of metabolism, particularly lipid synthesis (mostly triglycerides), and a larger use of amino acids for synthesis of feed-forward adipogenic compounds, larger cell signaling, lower cell-to-cell interactions, particularly for the cytoskeleton organization and cell junctions, and lower cell proliferation. The coordination of adipogenesis was mostly driven by Peroxisome Proliferator-activated Receptors together with other known adipogenic transcription factors. Only a few pathways and functions were more induced during osteogenesis compared to adipogenesis and some were more inhibited during osteogenesis, such as cholesterol and protein synthesis. Up-stream transcription factor analysis indicated activation of several lipid-related transcription regulators (e.g., PPARs and CEBPα) during adipogenesis but osteogenesis was driven by inhibition of several up-stream regulators, such as MYC. Between MSCs the data indicated an ‘adipocyte memory’ in ASC with also an apparent lower immunogenicity compared to BMSC during differentiations. Overall the analysis allowed proposing a dynamic model for the adipogenic and osteogenic differentiation in porcine ASC and BMSC.
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Affiliation(s)
- Massimo Bionaz
- Laboratory of Stem Cell Biology and Engineering in the Department of Animal Sciences, University of Illinois at Urbana-Champaign, Urbana, Illinois, United States of America
- Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois, United States of America
| | - Elisa Monaco
- Laboratory of Stem Cell Biology and Engineering in the Department of Animal Sciences, University of Illinois at Urbana-Champaign, Urbana, Illinois, United States of America
- Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois, United States of America
| | - Matthew B. Wheeler
- Laboratory of Stem Cell Biology and Engineering in the Department of Animal Sciences, University of Illinois at Urbana-Champaign, Urbana, Illinois, United States of America
- Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois, United States of America
- * E-mail:
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9
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van Wijk XM, Thijssen VL, Lawrence R, van den Broek SA, Dona M, Naidu N, Oosterhof A, van de Westerlo EM, Kusters LJ, Khaled Y, Jokela TA, Nowak-Sliwinska P, Kremer H, Stringer SE, Griffioen AW, van Wijk E, van Delft FL, van Kuppevelt TH. Interfering with UDP-GlcNAc metabolism and heparan sulfate expression using a sugar analogue reduces angiogenesis. ACS Chem Biol 2013; 8:2331-8. [PMID: 23972127 DOI: 10.1021/cb4004332] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Heparan sulfate (HS), a long linear polysaccharide, is implicated in various steps of tumorigenesis, including angiogenesis. We successfully interfered with HS biosynthesis using a peracetylated 4-deoxy analogue of the HS constituent GlcNAc and studied the compound's metabolic fate and its effect on angiogenesis. The 4-deoxy analogue was activated intracellularly into UDP-4-deoxy-GlcNAc, and HS expression was inhibited up to ∼96% (IC50 = 16 μM). HS chain size was reduced, without detectable incorporation of the 4-deoxy analogue, likely due to reduced levels of UDP-GlcNAc and/or inhibition of glycosyltransferase activity. Comprehensive gene expression analysis revealed reduced expression of genes regulated by HS binding growth factors such as FGF-2 and VEGF. Cellular binding and signaling of these angiogenic factors was inhibited. Microinjection in zebrafish embryos strongly reduced HS biosynthesis, and angiogenesis was inhibited in both zebrafish and chicken model systems. All of these data identify 4-deoxy-GlcNAc as a potent inhibitor of HS synthesis, which hampers pro-angiogenic signaling and neo-vessel formation.
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Affiliation(s)
| | - Victor L. Thijssen
- Angiogenesis
Laboratory, Department of Medical Oncology, VU University Medical Centre, Amsterdam, The Netherlands
| | | | | | | | | | | | | | | | | | - Tiina A. Jokela
- Institute
of Biomedicine, University of Eastern Finland, Kuopio, Finland
| | - Patrycja Nowak-Sliwinska
- Angiogenesis
Laboratory, Department of Medical Oncology, VU University Medical Centre, Amsterdam, The Netherlands
- Institute
of Bio-Engineering, Swiss Federal Institute of Technology (EPFL), Lausanne, Switzerland
| | | | - Sally E. Stringer
- Cardiovascular
Research Group, University of Manchester, Manchester, United Kingdom
| | - Arjan W. Griffioen
- Angiogenesis
Laboratory, Department of Medical Oncology, VU University Medical Centre, Amsterdam, The Netherlands
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10
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Choi S, Kang DH, Oh ES. Targeting syndecans: a promising strategy for the treatment of cancer. Expert Opin Ther Targets 2013; 17:695-705. [DOI: 10.1517/14728222.2013.773313] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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11
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Acharya B, Chun SY, Kim SY, Moon C, Shin HI, Park EK. Surface immobilization of MEPE peptide onto HA/β-TCP ceramic particles enhances bone regeneration and remodeling. J Biomed Mater Res B Appl Biomater 2012; 100:841-9. [DOI: 10.1002/jbm.b.32648] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2011] [Revised: 10/03/2011] [Accepted: 10/09/2011] [Indexed: 01/18/2023]
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12
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Baud'Huin M, Charrier C, Bougras G, Brion R, Lezot F, Padrines M, Heymann D. Proteoglycans and osteolysis. Methods Mol Biol 2012; 836:323-37. [PMID: 22252644 DOI: 10.1007/978-1-61779-498-8_21] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Osteolysis is a complex mechanism resulting from an exacerbated activity of osteoclasts associated or not with a dysregulation of osteoblast metabolism leading to bone loss. This bone defect is not compensated by bone apposition or by apposition of bone matrix with poor mechanical quality. Osteolytic process is regulated by mechanical constraints, by polypeptides including cytokines and hormones, and by extracellular matrix components such as proteoglycans (PGs) and glycosaminoglycans (GAGs). Several studies revealed that GAGs may influence osteoclastogenesis, but data are very controversial: some studies showed a repressive effect of GAGs on osteoclastic differentiation, whereas others described a stimulatory effect. The controversy also affects osteoblasts which appear sometimes inhibited by polysaccharides and sometimes stimulated by these compounds. Furthermore, long-term treatment with heparin leads to the development of osteoporosis fueling the controversy. After a brief description of the principal osteoclastogenesis assays, the present chapter summarizes the main data published on the effect of PGs/GAGs on bone cells and their functional incidence on osteolysis.
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13
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Velasco CR, Baud'huin M, Sinquin C, Maillasson M, Heymann D, Colliec-Jouault S, Padrines M. Effects of a sulfated exopolysaccharide produced by Altermonas infernus on bone biology. Glycobiology 2011; 21:781-95. [PMID: 21385793 DOI: 10.1093/glycob/cwr002] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
The growth and differentiation of bone cells is controlled by various factors, which can be modulated by heparan sulfates. Here, we investigated the effects of an oversulfated exopolysaccharide (OS-EPS) on the bone. We compared the effect of this compound with that of a native EPS. Long-term administration of OS-EPS causes cancellous bone loss in mice due, in part, to an increase in the number of osteoclasts lining the trabecular bone surface. No significant difference in cancellous bone volume was found between EPS-treated mice and age-matched control mice, underlying the importance of sulfation in trabecular bone loss. However, the mechanism sustaining this osteoporosis was unclear. To clarify OS-EPS activities, we investigated the effect of OS-EPS on osteogenesis. Our results demonstrated that OS-EPS inhibited osteoclastogenesis in two cell models. Using the surface plasmon resonance technique, we revealed that OS-EPS can form a hetero-molecular complex OS-EPS/receptor activator of NF-κB ligand (RANKL)/RANK and that RANK had a higher affinity for RANKL pre-incubated with OS-EPS than for RANKL alone, which would be in favor of an increase in bone resorption. However, in vitro, OS-EPS inhibited the early steps of osteoclast precursor adhesion and therefore inhibited the cell fusion step. In addition, we showed that OS-EPS reduced proliferation and accelerated osteoblastic differentiation, leading to strong inhibition of mineralized nodule formation, which would be in favor of an increase in bone resorption. Taken together, these data show different levels of bone resorption regulation by EPSs, most of them leading to proresorptive effects.
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Affiliation(s)
- C Ruiz Velasco
- INSERM U957, Faculté de Médecine, Université de Nantes, Nantes, France
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14
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Xu XH, Dong SS, Guo Y, Yang TL, Lei SF, Papasian CJ, Zhao M, Deng HW. Molecular genetic studies of gene identification for osteoporosis: the 2009 update. Endocr Rev 2010; 31:447-505. [PMID: 20357209 PMCID: PMC3365849 DOI: 10.1210/er.2009-0032] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2009] [Accepted: 02/02/2010] [Indexed: 12/12/2022]
Abstract
Osteoporosis is a complex human disease that results in increased susceptibility to fragility fractures. It can be phenotypically characterized using several traits, including bone mineral density, bone size, bone strength, and bone turnover markers. The identification of gene variants that contribute to osteoporosis phenotypes, or responses to therapy, can eventually help individualize the prognosis, treatment, and prevention of fractures and their adverse outcomes. Our previously published reviews have comprehensively summarized the progress of molecular genetic studies of gene identification for osteoporosis and have covered the data available to the end of September 2007. This review represents our continuing efforts to summarize the important and representative findings published between October 2007 and November 2009. The topics covered include genetic association and linkage studies in humans, transgenic and knockout mouse models, as well as gene-expression microarray and proteomics studies. Major results are tabulated for comparison and ease of reference. Comments are made on the notable findings and representative studies for their potential influence and implications on our present understanding of the genetics of osteoporosis.
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Affiliation(s)
- Xiang-Hong Xu
- Institute of Molecular Genetics, Xi'an Jiaotong University, Shaanxi, People's Republic of China
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15
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Ling L, Murali S, Stein GS, van Wijnen AJ, Cool SM. Glycosaminoglycans modulate RANKL-induced osteoclastogenesis. J Cell Biochem 2010; 109:1222-31. [PMID: 20135643 DOI: 10.1002/jcb.22506] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Skeletal integrity is tightly regulated by the activity of osteoblasts and osteoclasts that are both under the control of extracellular glycosaminoglycans (GAGs) through their interactions with endogenous growth factors and differentiation-promoting ligands. Receptor activator of NF-kappa-B ligand (RANKL), which is a tumor necrosis factor (TNF)-related protein that is critical for osteoclast formation, is produced by osteoblasts and further modulated by certain types of GAGs. Using unfractionated osteoblast-derived GAGs that reflect the complex tissue microenvironment within which osteoclasts reside, we demonstrate that these GAGs block the osteoclastogenic activity of RANKL. Furthermore, RANKL significantly reduces extracellular signal-regulated protein kinase (ERK) activity, a putative suppressor of osteoclastogenesis, but osteoblast-derived GAGs eliminate the inhibitory effects of RANKL on ERK activity. Notably, while imposing an anti-osteoclastic effect, these GAGs also enhanced the proliferation of osteoblasts. Thus, the osteoblast microenvironment is a potent source of GAGs that promote bone anabolic activities. The anti-osteoclastogenic and osteoblast-related mitogenic activities of these GAGs together may provide a key starting point for the development of selective sugar-based therapeutic compounds for the treatment of osteopenic disorders.
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Affiliation(s)
- Ling Ling
- Institute of Medical Biology, Agency for Science Technology and Research (A*STAR), 8A Biomedical Grove, #06-06 Immunos, Singapore 138648
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Velasco CR, Colliec-Jouault S, Redini F, Heymann D, Padrines M. Proteoglycans on bone tumor development. Drug Discov Today 2010; 15:553-60. [PMID: 20553958 DOI: 10.1016/j.drudis.2010.05.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2010] [Revised: 04/06/2010] [Accepted: 05/17/2010] [Indexed: 11/26/2022]
Abstract
Proteoglycans, extracellular matrix components, exert several activities on bone cells and seem crucial for maintaining an appropriate number of osteoblasts and osteoclasts. The overall data strengthen a pro-bone resorptive role for proteoglycans, through the control of osteoprotegerin availability and of receptor activator of NF-kappaB ligand bioactivity. In parallel, proteoglycans participate in the control of tumor development at different levels, including bone tumor development and bone metastases dissemination. This dual role makes them good candidates as regulatory molecules in the vicious cycle between tumor proliferation and bone resorption observed during tumor development in bone site. Knowledge of the biological roles of these molecules in cancer biology, tumor angiogenesis and metastasis has promoted the development of drugs targeting them.
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