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Alotaibi FS, Alsadun MMR, Alsaiari SA, Ramakrishnan K, Yates EA, Fernig DG. Interactions of proteins with heparan sulfate. Essays Biochem 2024:EBC20230093. [PMID: 38646914 DOI: 10.1042/ebc20230093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 03/22/2024] [Accepted: 04/02/2024] [Indexed: 04/23/2024]
Abstract
Heparan sulfate (HS) is a glycosaminoglycan, polysaccharides that are considered to have arisen in the last common unicellular ancestor of multicellular animals. In this light, the large interactome of HS and its myriad functions in relation to the regulation of cell communication are not surprising. The binding of proteins to HS determines their localisation and diffusion, essential for embryonic development and homeostasis. Following the biosynthesis of the initial heparosan polymer, the subsequent modifications comprise an established canonical pathway and a minor pathway. The more frequent former starts with N-deacetylation and N-sulfation of GlcNAc residues, the latter with C-5 epimerisation of a GlcA residue adjacent to a GlcNAc. The binding of proteins to HS is driven by ionic interactions. The multivalent effect arising from the many individual ionic bonds between a single protein and a polysaccharide chain results in a far stronger interaction than would be expected from an ion-exchange process. In many instances, upon binding, both parties undergo substantial conformational change, the resulting hydrogen and van der Waal bonds contributing significant free energy to the binding reaction. Nevertheless, ionic bonds dominate the protein-polysaccharide interaction kinetically. Together with the multivalent effect, this provides an explanation for the observed trapping of HS-binding proteins in extracellular matrix. Importantly, individual ionic bonds have been observed to be dynamic; breaking and reforming, while the protein remains bound to the polysaccharide. These considerations lead to a model for 1D diffusion of proteins in extracellular matrix on HS, involving mechanisms such as sliding, chain switching and rolling.
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Affiliation(s)
- Faizah S Alotaibi
- Department of Biochemistry, Systems and Cell Biology, Institute of Molecular, Integrative and Systems Biology, University of Liverpool, Liverpool L69 7ZB, U.K
| | - Marim M R Alsadun
- Department of Biochemistry, Systems and Cell Biology, Institute of Molecular, Integrative and Systems Biology, University of Liverpool, Liverpool L69 7ZB, U.K
- Department of Biology, University of Tabuk, Tabuk 71491, Saudi Arabia
| | - Sarah A Alsaiari
- Department of Biochemistry, Systems and Cell Biology, Institute of Molecular, Integrative and Systems Biology, University of Liverpool, Liverpool L69 7ZB, U.K
- Department of Biological Sciences, College of Science, University of Jeddah, Jeddah 21589, Saudi Arabia
| | - Krithika Ramakrishnan
- Department of Biochemistry, Systems and Cell Biology, Institute of Molecular, Integrative and Systems Biology, University of Liverpool, Liverpool L69 7ZB, U.K
| | - Edwin A Yates
- Department of Biochemistry, Systems and Cell Biology, Institute of Molecular, Integrative and Systems Biology, University of Liverpool, Liverpool L69 7ZB, U.K
| | - David G Fernig
- Department of Biochemistry, Systems and Cell Biology, Institute of Molecular, Integrative and Systems Biology, University of Liverpool, Liverpool L69 7ZB, U.K
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2
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Hernandez BJ, Skiba NP, Plössl K, Strain M, Liu Y, Grigsby D, Kelly U, Cady MA, Manocha V, Maminishkis A, Watkins T, Miller SS, Ashley‐Koch A, Stamer WD, Weber BHF, Bowes Rickman C, Klingeborn M. Polarized Desmosome and Hemidesmosome Shedding via Small Extracellular Vesicles is an Early Indicator of Outer Blood-Retina Barrier Dysfunction. JOURNAL OF EXTRACELLULAR BIOLOGY 2023; 2:e116. [PMID: 38108061 PMCID: PMC10720597 DOI: 10.1002/jex2.116] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 08/30/2023] [Accepted: 09/11/2023] [Indexed: 12/19/2023]
Abstract
The retinal pigmented epithelium (RPE) constitutes the outer blood-retinal barrier, enables photoreceptor function of the eye, and is constantly exposed to oxidative stress. As such, dysfunction of the RPE underlies pathology leading to development of age-related macular degeneration (AMD), the leading cause of vision loss among the elderly in industrialized nations. A major responsibility of the RPE is to process photoreceptor outer segments, which relies on the proper functioning of its endocytic pathways and endosomal trafficking. Exosomes and other extracellular vesicles (EVs) from RPE are an essential part of these pathways and may be early indicators of cellular stress. To test the role of small EVs (sEVs) including exosomes, that may underlie the early stages of AMD, we used a polarized primary RPE cell culture model under chronic subtoxic oxidative stress. Unbiased proteomic analyses of highly purified basolateral sEVs from oxidatively stressed RPE cultures revealed changes in proteins involved in epithelial barrier integrity. There were also significant changes in proteins accumulating in the basal-side sub-RPE extracellular matrix during oxidative stress, that could be prevented with an inhibitor of sEV release. Thus, chronic subtoxic oxidative stress in primary RPE cultures induces changes in sEV content, including basal-side specific desmosome and hemidesmosome shedding via sEVs. These findings provide novel biomarkers of early cellular dysfunction and opportunity for therapeutic intervention in age-related retinal diseases (e.g., AMD).
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Affiliation(s)
- Belinda J. Hernandez
- Department of Ophthalmology, Duke Eye CenterDuke UniversityDurhamNorth CarolinaUSA
| | - Nikolai P. Skiba
- Department of Ophthalmology, Duke Eye CenterDuke UniversityDurhamNorth CarolinaUSA
| | - Karolina Plössl
- Institute of Human GeneticsUniversity of RegensburgRegensburgGermany
| | - Madison Strain
- Duke Molecular Physiology Institute, Department of MedicineDuke UniversityDurhamNorth CarolinaUSA
| | - Yutao Liu
- Department of Cellular Biology and AnatomyAugusta UniversityAugustaGeorgiaUSA
| | - Daniel Grigsby
- Department of Ophthalmology, Duke Eye CenterDuke UniversityDurhamNorth CarolinaUSA
| | - Una Kelly
- Department of Ophthalmology, Duke Eye CenterDuke UniversityDurhamNorth CarolinaUSA
| | - Martha A. Cady
- Department of Ophthalmology, Duke Eye CenterDuke UniversityDurhamNorth CarolinaUSA
| | - Vikram Manocha
- Department of Ophthalmology, Duke Eye CenterDuke UniversityDurhamNorth CarolinaUSA
| | - Arvydas Maminishkis
- Ophthalmic Genetics and Visual Function Branch, Section on Epithelial and Retinal Physiology and DiseaseNational Eye Institute, National Institutes of HealthBethesdaMarylandUSA
| | - TeddiJo Watkins
- Department of Ophthalmology, Duke Eye CenterDuke UniversityDurhamNorth CarolinaUSA
- Office of Animal Welfare Assurance, Duke Animal Care and Use ProgramDuke UniversityDurhamNorth CarolinaUSA
| | - Sheldon S. Miller
- Ophthalmic Genetics and Visual Function Branch, Section on Epithelial and Retinal Physiology and DiseaseNational Eye Institute, National Institutes of HealthBethesdaMarylandUSA
| | - Allison Ashley‐Koch
- Duke Molecular Physiology Institute, Department of MedicineDuke UniversityDurhamNorth CarolinaUSA
| | - W. Daniel Stamer
- Department of Ophthalmology, Duke Eye CenterDuke UniversityDurhamNorth CarolinaUSA
- Department of Biomedical EngineeringDuke UniversityDurhamNorth CarolinaUSA
| | - Bernhard H. F. Weber
- Institute of Human GeneticsUniversity of RegensburgRegensburgGermany
- Institute of Clinical Human GeneticsUniversity Hospital RegensburgRegensburgGermany
| | - Catherine Bowes Rickman
- Department of Ophthalmology, Duke Eye CenterDuke UniversityDurhamNorth CarolinaUSA
- Department of Cell BiologyDuke UniversityDurhamNorth CarolinaUSA
| | - Mikael Klingeborn
- Department of Ophthalmology, Duke Eye CenterDuke UniversityDurhamNorth CarolinaUSA
- McLaughlin Research InstituteGreat FallsMontanaUSA
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3
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Vlodavsky I, Kayal Y, Hilwi M, Soboh S, Sanderson RD, Ilan N. Heparanase-A single protein with multiple enzymatic and nonenzymatic functions. PROTEOGLYCAN RESEARCH 2023; 1:e6. [PMID: 37547889 PMCID: PMC10398610 DOI: 10.1002/pgr2.6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 06/15/2023] [Accepted: 06/16/2023] [Indexed: 08/08/2023]
Abstract
Heparanase (Hpa1) is expressed by tumor cells and cells of the tumor microenvironment and functions extracellularly to remodel the extracellular matrix (ECM) and regulate the bioavailability of ECM-bound factors, augmenting, among other effects, gene transcription, autophagy, exosome formation, and heparan sulfate (HS) turnover. Much of the impact of heparanase on tumor progression is related to its function in mediating tumor-host crosstalk, priming the tumor microenvironment to better support tumor growth, metastasis, and chemoresistance. The enzyme appears to fulfill some normal functions associated, for example, with vesicular traffic, lysosomal-based secretion, autophagy, HS turnover, and gene transcription. It activates cells of the innate immune system, promotes the formation of exosomes and autophagosomes, and stimulates signal transduction pathways via enzymatic and nonenzymatic activities. These effects dynamically impact multiple regulatory pathways that together drive tumor growth, dissemination, and drug resistance as well as inflammatory responses. The emerging premise is that heparanase expressed by tumor cells, immune cells, endothelial cells, and other cells of the tumor microenvironment is a key regulator of the aggressive phenotype of cancer, an important contributor to the poor outcome of cancer patients and a valid target for therapy. So far, however, antiheparanase-based therapy has not been implemented in the clinic. Unlike heparanase, heparanase-2 (Hpa2), a close homolog of heparanase (Hpa1), does not undergo proteolytic processing and hence lacks intrinsic HS-degrading activity, the hallmark of heparanase. Hpa2 retains the capacity to bind heparin/HS and exhibits an even higher affinity towards HS than heparanase, thus competing for HS binding and inhibiting heparanase enzymatic activity. It appears that Hpa2 functions as a natural inhibitor of Hpa1 regulates the expression of selected genes that maintain tissue hemostasis and normal function, and plays a protective role against cancer and inflammation, together emphasizing the significance of maintaining a proper balance between Hpa1 and Hpa2.
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Affiliation(s)
- Israel Vlodavsky
- Technion Integrated Cancer Center, TechnionRappaport Faculty of MedicineHaifaIsrael
| | - Yasmin Kayal
- Technion Integrated Cancer Center, TechnionRappaport Faculty of MedicineHaifaIsrael
| | - Maram Hilwi
- Technion Integrated Cancer Center, TechnionRappaport Faculty of MedicineHaifaIsrael
| | - Soaad Soboh
- Technion Integrated Cancer Center, TechnionRappaport Faculty of MedicineHaifaIsrael
| | - Ralph D. Sanderson
- Department of PathologyUniversity of Alabama at BirminghamBirminghamAlabamaUSA
| | - Neta Ilan
- Technion Integrated Cancer Center, TechnionRappaport Faculty of MedicineHaifaIsrael
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4
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Hernandez BJ, Skiba NP, Plößl K, Strain M, Grigsby D, Kelly U, Cady MA, Manocha V, Maminishkis A, Watkins T, Miller SS, Ashley-Koch A, Stamer WD, Weber BHF, Rickman CB, Klingeborn M. Polarized Desmosome and Hemidesmosome Shedding via Exosomes is an Early Indicator of Outer Blood-Retina Barrier Dysfunction. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.06.12.544677. [PMID: 37398366 PMCID: PMC10312606 DOI: 10.1101/2023.06.12.544677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/04/2023]
Abstract
The retinal pigmented epithelium (RPE) constitutes the outer blood-retinal barrier, enables photoreceptor function of the eye, and is constantly exposed to oxidative stress. As such, dysfunction of the RPE underlies pathology leading to development of age-related macular degeneration (AMD), the leading cause of vision loss among the elderly in industrialized nations. A major responsibility of the RPE is to process photoreceptor outer segments, which relies on the proper functioning of its endocytic pathways and endosomal trafficking. Exosomes and other extracellular vesicles from RPE are an essential part of these pathways and may be early indicators of cellular stress. To test the role of exosomes that may underlie the early stages of AMD, we used a polarized primary RPE cell culture model under chronic subtoxic oxidative stress. Unbiased proteomic analyses of highly purified basolateral exosomes from oxidatively stressed RPE cultures revealed changes in proteins involved in epithelial barrier integrity. There were also significant changes in proteins accumulating in the basal-side sub-RPE extracellular matrix during oxidative stress, that could be prevented with an inhibitor of exosome release. Thus, chronic subtoxic oxidative stress in primary RPE cultures induces changes in exosome content, including basal-side specific desmosome and hemidesmosome shedding via exosomes. These findings provide novel biomarkers of early cellular dysfunction and opportunity for therapeutic intervention in age-related retinal diseases, (e.g., AMD) and broadly from blood-CNS barriers in other neurodegenerative diseases.
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5
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Hübers C, Abdul Pari AA, Grieshober D, Petkov M, Schmidt A, Messmer T, Heyer CM, Schölch S, Kapel SS, Gengenbacher N, Singhal M, Schieb B, Fricke C, Will R, Remans K, Utikal JS, Reissfelder C, Schlesner M, Hodivala-Dilke KM, Kersten S, Goerdt S, Augustin HG, Felcht M. Primary tumor-derived systemic nANGPTL4 inhibits metastasis. J Exp Med 2023; 220:e20202595. [PMID: 36269299 PMCID: PMC9595206 DOI: 10.1084/jem.20202595] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 08/07/2022] [Accepted: 09/15/2022] [Indexed: 11/04/2022] Open
Abstract
Primary tumors and distant site metastases form a bidirectionally communicating system. Yet, the molecular mechanisms of this crosstalk are poorly understood. Here, we identified the proteolytically cleaved fragments of angiopoietin-like 4 (ANGPTL4) as contextually active protumorigenic and antitumorigenic contributors in this communication ecosystem. Preclinical studies in multiple tumor models revealed that the C-terminal fragment (cANGPTL4) promoted tumor growth and metastasis. In contrast, the N-terminal fragment of ANGPTL4 (nANGPTL4) inhibited metastasis and enhanced overall survival in a postsurgical metastasis model by inhibiting WNT signaling and reducing vascularity at the metastatic site. Tracing ANGPTL4 and its fragments in tumor patients detected full-length ANGPTL4 primarily in tumor tissues, whereas nANGPTL4 predominated in systemic circulation and correlated inversely with disease progression. The study highlights the spatial context of the proteolytic cleavage-dependent pro- and antitumorigenic functions of ANGPTL4 and identifies and validates nANGPTL4 as a novel biomarker of tumor progression and antimetastatic therapeutic agent.
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Affiliation(s)
- Corinne Hübers
- European Center for Angioscience, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
- Division of Vascular Oncology and Metastasis, German Cancer Research Center (DKFZ-ZMBH Alliance), Heidelberg, Germany
- Department of Dermatology, Venereology and Allergy, University Medical Centre Mannheim, Medical Faculty Mannheim, Heidelberg University and Centre of Excellence of Dermatology of Baden-Württemberg, Mannheim, Germany
| | - Ashik Ahmed Abdul Pari
- European Center for Angioscience, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
- Division of Vascular Oncology and Metastasis, German Cancer Research Center (DKFZ-ZMBH Alliance), Heidelberg, Germany
- Faculty of Biosciences, Heidelberg University, Heidelberg, Germany
| | - Denise Grieshober
- European Center for Angioscience, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
- Division of Vascular Oncology and Metastasis, German Cancer Research Center (DKFZ-ZMBH Alliance), Heidelberg, Germany
- Faculty of Biosciences, Heidelberg University, Heidelberg, Germany
| | - Martin Petkov
- European Center for Angioscience, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
- Division of Vascular Oncology and Metastasis, German Cancer Research Center (DKFZ-ZMBH Alliance), Heidelberg, Germany
| | | | - Tatjana Messmer
- Division of Vascular Oncology and Metastasis, German Cancer Research Center (DKFZ-ZMBH Alliance), Heidelberg, Germany
- Department of Dermatology, Venereology and Allergy, University Medical Centre Mannheim, Medical Faculty Mannheim, Heidelberg University and Centre of Excellence of Dermatology of Baden-Württemberg, Mannheim, Germany
| | - Christian Moritz Heyer
- Faculty of Biosciences, Heidelberg University, Heidelberg, Germany
- Biomedical Informatics, Data Mining and Data Analytics, Augsburg University, Augsburg, Germany
| | - Sebastian Schölch
- JCCU Translational Surgical Oncology (A430), German Cancer Research Center, Heidelberg, Germany
- Department of Surgery, University Medical Centre Mannheim, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
- DKFZ-Hector Cancer Institute at University Medical Centre Mannheim, Mannheim, Germany
| | - Stephanie S. Kapel
- European Center for Angioscience, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
- Division of Vascular Oncology and Metastasis, German Cancer Research Center (DKFZ-ZMBH Alliance), Heidelberg, Germany
| | - Nicolas Gengenbacher
- European Center for Angioscience, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
- Division of Vascular Oncology and Metastasis, German Cancer Research Center (DKFZ-ZMBH Alliance), Heidelberg, Germany
| | - Mahak Singhal
- European Center for Angioscience, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
- Division of Vascular Oncology and Metastasis, German Cancer Research Center (DKFZ-ZMBH Alliance), Heidelberg, Germany
- Laboratory of AngioRhythms, European Center for Angioscience, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Benjamin Schieb
- European Center for Angioscience, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
- Division of Vascular Oncology and Metastasis, German Cancer Research Center (DKFZ-ZMBH Alliance), Heidelberg, Germany
| | - Claudine Fricke
- European Center for Angioscience, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
- Division of Vascular Oncology and Metastasis, German Cancer Research Center (DKFZ-ZMBH Alliance), Heidelberg, Germany
| | - Rainer Will
- Genomics & Proteomics Core Facilities, German Cancer Research Center, Heidelberg, Germany
| | - Kim Remans
- Protein Expression and Purification Core Facility, European Molecular Biology Center, Heidelberg, Germany
| | - Jochen Sven Utikal
- Department of Dermatology, Venereology and Allergy, University Medical Centre Mannheim, Medical Faculty Mannheim, Heidelberg University and Centre of Excellence of Dermatology of Baden-Württemberg, Mannheim, Germany
- Skin Cancer Unit, German Cancer Research Center, Heidelberg, Germany
| | - Christoph Reissfelder
- Department of Surgery, University Medical Centre Mannheim, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
- DKFZ-Hector Cancer Institute at University Medical Centre Mannheim, Mannheim, Germany
| | - Matthias Schlesner
- Biomedical Informatics, Data Mining and Data Analytics, Augsburg University, Augsburg, Germany
| | - Kairbaan M. Hodivala-Dilke
- Center for Tumor Biology, Barts Cancer Institute, Queen Mary University of London, John Vane Science Center, London, United Kingdom
| | - Sander Kersten
- Nutrition, Metabolism and Genomics group, Division of Human Nutrition and Health, Wageningen University, Wageningen, The Netherlands
| | - Sergij Goerdt
- European Center for Angioscience, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
- Department of Dermatology, Venereology and Allergy, University Medical Centre Mannheim, Medical Faculty Mannheim, Heidelberg University and Centre of Excellence of Dermatology of Baden-Württemberg, Mannheim, Germany
| | - Hellmut G. Augustin
- European Center for Angioscience, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
- Division of Vascular Oncology and Metastasis, German Cancer Research Center (DKFZ-ZMBH Alliance), Heidelberg, Germany
| | - Moritz Felcht
- European Center for Angioscience, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
- Division of Vascular Oncology and Metastasis, German Cancer Research Center (DKFZ-ZMBH Alliance), Heidelberg, Germany
- Department of Dermatology, Venereology and Allergy, University Medical Centre Mannheim, Medical Faculty Mannheim, Heidelberg University and Centre of Excellence of Dermatology of Baden-Württemberg, Mannheim, Germany
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Jain P, Rauer SB, Möller M, Singh S. Mimicking the Natural Basement Membrane for Advanced Tissue Engineering. Biomacromolecules 2022; 23:3081-3103. [PMID: 35839343 PMCID: PMC9364315 DOI: 10.1021/acs.biomac.2c00402] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
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Advancements in the field of tissue engineering have
led to the
elucidation of physical and chemical characteristics of physiological
basement membranes (BM) as specialized forms of the extracellular
matrix. Efforts to recapitulate the intricate structure and biological
composition of the BM have encountered various advancements due to
its impact on cell fate, function, and regulation. More attention
has been paid to synthesizing biocompatible and biofunctional fibrillar
scaffolds that closely mimic the natural BM. Specific modifications
in biomimetic BM have paved the way for the development of in vitro models like alveolar-capillary barrier, airway
models, skin, blood-brain barrier, kidney barrier, and metastatic
models, which can be used for personalized drug screening, understanding
physiological and pathological pathways, and tissue implants. In this
Review, we focus on the structure, composition, and functions of in vivo BM and the ongoing efforts to mimic it synthetically.
Light has been shed on the advantages and limitations of various forms
of biomimetic BM scaffolds including porous polymeric membranes, hydrogels,
and electrospun membranes This Review further elaborates and justifies
the significance of BM mimics in tissue engineering, in particular
in the development of in vitro organ model systems.
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Affiliation(s)
- Puja Jain
- DWI-Leibniz-Institute for Interactive Materials e.V, Aachen 52074, Germany
| | | | - Martin Möller
- DWI-Leibniz-Institute for Interactive Materials e.V, Aachen 52074, Germany
| | - Smriti Singh
- Max-Planck-Institute for Medical Research, Heidelberg 69028, Germany
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Zheng Q, Wang Z, Sun Z, Wen J, Duan T, Zhang B. In vivo and in vitro performances of chitosan-coated Mg-Zn-Zr-Gd-Ca alloys as bone biodegradable materials in rat models. J Biomater Appl 2022; 36:1786-1799. [PMID: 35276054 DOI: 10.1177/08853282211052385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Mg alloys have attracted significant attention as promising biomedical materials, specifically as fixation materials for promoting fracture healing. However, their unsatisfactory corrosion resistances hinder further clinical applications and thus require attention. This study aims to determine the performance of novel chitosan-coated Mg-1Zn-0.3Zr-2Gd-1Ca alloy and its ability to promote the healing of osteoporotic fractures. Moreover, its corrosion resistance and biocompatibility were assessed. Performance degradations of the samples were measured via electrochemical tests, weight loss test and morphological analysis, and the uncoated and chitosan-coated fixations were compared based on their effects on biocompatibility via the cytotoxicity test, X-rays, and hematoxylin and eosin staining. The effect of bone growth and healing was investigated via immunohistochemical test. Results of the electrochemical tests indicated that compared with the bare body, chitosan-coated Mg-Zn-Ca-Zr-Gd alloys improved by one order of magnitude. Additionally, scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), and weight loss test demonstrated that the corrosion resistance of the chitosan-coated Mg alloy is better than that of the uncoated alloy. In addition, cytotoxicity analysis indicated that the viability and morphology of the chitosan-coated alloy groups were superior to the uncoated groups in vitro. During in vivo analysis, chitosan-coated and uncoated Mg-1Zn-0.3Zr-2Gd-1Ca alloys were implanted into ovariectomized SD female rats with osteoporotic fractures for 1, 2, and 3 weeks. No displacement and shedding were observed through X-rays, and pathological analyses proved that the material was not harmful for liver and kidney tissues. Immunohistochemistry revealed that the chitosan-coated Mg-Zn-Ca-Zr-Gd alloy material contributed to the healing of osteoporotic fractures in the SD rat models. In conclusion, this study demonstrated the chitosan-coated Mg-Zn-Ca-Zr-Gd alloys have improved corrosion resistance and biocompatibility. Moreover, the alloy was found to accelerate the healing of osteoporotic fractures in SD rat models. Therefore, it has significant potential as a fixation material for osteoporotic fractures.
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Affiliation(s)
- Qiuxia Zheng
- Department of surgery, Central Laboratory of Luoyang Central Hospital, 74623The Luoyang Central Hospital affiliated of Zhengzhou University, Luoyang, China
| | - Zhanhui Wang
- Department of surgery, Central Laboratory of Luoyang Central Hospital, 74623The Luoyang Central Hospital affiliated of Zhengzhou University, Luoyang, China
| | - Zongbin Sun
- Department of surgery, Central Laboratory of Luoyang Central Hospital, 74623The Luoyang Central Hospital affiliated of Zhengzhou University, Luoyang, China
| | - Jiuba Wen
- School of Material Science and Engine, 74623Henan University of science and technology, Luoyang, China
| | - Tinghe Duan
- Department of surgery, Central Laboratory of Luoyang Central Hospital, 74623The Luoyang Central Hospital affiliated of Zhengzhou University, Luoyang, China
| | - Bingbing Zhang
- Key Laboratory of Molecular Medicine for Liver Injury and Repair, 74623Henan University of science and technology, Luoyang, China
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8
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Smoak MM, Hogan KJ, Grande-Allen KJ, Mikos AG. Bioinspired electrospun dECM scaffolds guide cell growth and control the formation of myotubes. SCIENCE ADVANCES 2021; 7:eabg4123. [PMID: 33990336 PMCID: PMC8121426 DOI: 10.1126/sciadv.abg4123] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 03/25/2021] [Indexed: 06/01/2023]
Abstract
While skeletal muscle has a high capacity for endogenous repair in acute injuries, volumetric muscle loss can leave long-lasting or permanent structural and functional deficits to the injured muscle and surrounding tissues. With clinical treatments failing to repair lost tissue, there is a great need for a tissue-engineered therapy to promote skeletal muscle regeneration. In this study, we aim to assess the potential for electrospun decellularized skeletal muscle extracellular matrix (dECM) with tunable physicochemical properties to control mouse myoblast growth and myotube formation. The material properties as well as cell behavior - growth and differentiation - were assessed in response to modulation of crosslinking and scaffold architecture. The fabrication of a bioactive dECM-based system with tunable physicochemical properties that can control myotube formation has several applications in skeletal muscle engineering and may bring the field one step closer to developing a therapy to address these unmet clinical needs.
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Affiliation(s)
- Mollie M Smoak
- Department of Bioengineering, Rice University, Houston, TX 77030, USA
| | - Katie J Hogan
- Department of Bioengineering, Rice University, Houston, TX 77030, USA
| | | | - Antonios G Mikos
- Department of Bioengineering, Rice University, Houston, TX 77030, USA.
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9
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Zahra FT, Sajib MS, Mikelis CM. Role of bFGF in Acquired Resistance upon Anti-VEGF Therapy in Cancer. Cancers (Basel) 2021; 13:1422. [PMID: 33804681 PMCID: PMC8003808 DOI: 10.3390/cancers13061422] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 03/15/2021] [Accepted: 03/17/2021] [Indexed: 12/13/2022] Open
Abstract
Anti-angiogenic approaches targeting the vascular endothelial growth factor (VEGF) signaling pathway have been a significant research focus during the past decades and are well established in clinical practice. Despite the expectations, their benefit is ephemeral in several diseases, including specific cancers. One of the most prominent side effects of the current, VEGF-based, anti-angiogenic treatments remains the development of resistance, mostly due to the upregulation and compensatory mechanisms of other growth factors, with the basic fibroblast growth factor (bFGF) being at the top of the list. Over the past decade, several anti-angiogenic approaches targeting simultaneously different growth factors and their signaling pathways have been developed and some have reached the clinical practice. In the present review, we summarize the knowledge regarding resistance mechanisms upon anti-angiogenic treatment, mainly focusing on bFGF. We discuss its role in acquired resistance upon prolonged anti-angiogenic treatment in different tumor settings, outline the reported resistance mechanisms leading to bFGF upregulation, and summarize the efforts and outcome of combined anti-angiogenic approaches to date.
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Affiliation(s)
| | | | - Constantinos M. Mikelis
- Department of Pharmaceutical Sciences, School of Pharmacy, Texas Tech University Health Sciences Center, Amarillo, TX 79106, USA; (F.T.Z.); (M.S.S.)
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10
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Nakamura T, Yoshida E, Hara T, Fujie T, Yamamoto C, Fujiwara Y, Ogata F, Kawasaki N, Takita R, Uchiyama M, Kaji T. Zn(ii)2,9-dimethyl-1,10-phenanthroline stimulates cultured bovine aortic endothelial cell proliferation. RSC Adv 2020; 10:42327-42337. [PMID: 35516781 PMCID: PMC9057965 DOI: 10.1039/d0ra06731h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 11/15/2020] [Indexed: 01/21/2023] Open
Abstract
Vascular endothelial cells cover the luminal surface of blood vessels in a monolayer. Proliferation of these cells is crucial for the repair of damaged endothelial monolayers. In the present study, we identified a zinc complex, Zn(ii)2,9-dimethyl-1,10-phenanthroline (Zn-12), that stimulates the proliferation of bovine aortic endothelial cells in a culture system. No such stimulatory activity was observed for the ligand alone or in combination with other metals; however, the ligand combined with iron weakly stimulated the proliferation, as evidenced by the [3H]thymidine incorporation assay. Inorganic zinc weakly but significantly stimulated proliferation, and intracellular accumulation of zinc was similar between inorganic zinc and Zn-12 treatment, suggesting that the mechanisms by which Zn-12 stimulates vascular endothelial cell proliferation contain processes that differ from those by which inorganic zinc stimulates proliferation. Although expression of endogenous fibroblast growth factor-2 (FGF-2) and its receptor FGFR-1 was unchanged by Zn-12, both siRNA-mediated knockdown of FGF-2 and FGFR inhibition partly but significantly suppressed the stimulation of vascular endothelial cell proliferation by Zn-12, indicating that the zinc complex activates the FGF-2 pathway to stimulate proliferation. Phosphorylation of ERK1/2 and MAPKs was induced by Zn-12, and PD98059, a MEK1 inhibitor, significantly suppressed the stimulatory effect of Zn-12 on vascular endothelial cell proliferation. Therefore, it is suggested that Zn-12 activates the FGF-2 pathway via activation of ERK1/2 signaling to stimulate vascular endothelial cell proliferation, although FGF-2-independent mechanisms are also involved in the stimulation. Zn-12 and related compounds may be promising molecular probes to analyze biological systems of vascular endothelial cells. Stimulation of vascular endothelial cell proliferation by Zn-12 can be mediated by the ERK1/2 activation independently of the FGF-2-FGFR pathway. Additionally, there may be other pathways involved in the Zn-12 stimulation.![]()
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Affiliation(s)
- Takehiro Nakamura
- Faculty of Pharmaceutical Sciences, Tokyo University of Science 2641 Yamazaki Noda 278-8510 Japan.,Faculty of Pharmacy, Kindai University 3-4-1 Kowakae Higashi-Osaka 577-8502 Japan
| | - Eiko Yoshida
- Faculty of Pharmaceutical Sciences, Tokyo University of Science 2641 Yamazaki Noda 278-8510 Japan
| | - Takato Hara
- Faculty of Pharmaceutical Sciences, Toho University 2-2-1 Miyama Funabashi 274-8510 Japan
| | - Tomoya Fujie
- Faculty of Pharmaceutical Sciences, Toho University 2-2-1 Miyama Funabashi 274-8510 Japan
| | - Chika Yamamoto
- Faculty of Pharmaceutical Sciences, Toho University 2-2-1 Miyama Funabashi 274-8510 Japan
| | - Yasuyuki Fujiwara
- School of Pharmacy, Tokyo University of Pharmacy and Life Sciences 1432-1 Horinouchi Hachioji 192-0392 Japan
| | - Fumihiko Ogata
- Faculty of Pharmacy, Kindai University 3-4-1 Kowakae Higashi-Osaka 577-8502 Japan
| | - Naohito Kawasaki
- Faculty of Pharmacy, Kindai University 3-4-1 Kowakae Higashi-Osaka 577-8502 Japan
| | - Ryo Takita
- Graduate School of Pharmaceutical Sciences, The University of Tokyo 7-3-1 Hongo Bunkyo-ku 113-0033 Japan
| | - Masanobu Uchiyama
- Graduate School of Pharmaceutical Sciences, The University of Tokyo 7-3-1 Hongo Bunkyo-ku 113-0033 Japan.,Advanced Elements Chemistry Research Team, RIKEN Center for Sustainable Resource Science, Elements Chemistry Laboratory, RIKEN 2-1 Hirosawa Wako 351-0198 Japan
| | - Toshiyuki Kaji
- Faculty of Pharmaceutical Sciences, Tokyo University of Science 2641 Yamazaki Noda 278-8510 Japan
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11
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Kelly UL, Grigsby D, Cady MA, Landowski M, Skiba NP, Liu J, Remaley AT, Klingeborn M, Bowes Rickman C. High-density lipoproteins are a potential therapeutic target for age-related macular degeneration. J Biol Chem 2020; 295:13601-13616. [PMID: 32737203 PMCID: PMC7521644 DOI: 10.1074/jbc.ra119.012305] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 07/22/2020] [Indexed: 02/02/2023] Open
Abstract
Strong evidence suggests that dysregulated lipid metabolism involving dysfunction of the retinal pigmented epithelium (RPE) underlies the pathogenesis of age-related macular degeneration (AMD), the leading cause of irreversible blindness in the elderly. A hallmark of AMD is the overproduction of lipid- and protein-rich extracellular deposits that accumulate in the extracellular matrix (Bruch's membrane (BrM)) adjacent to the RPE. We analyzed apolipoprotein A-1 (ApoA-1)-containing lipoproteins isolated from BrM of elderly human donor eyes and found a unique proteome, distinct from high-density lipoprotein (HDL) isolated from donor plasma of the same individuals. The most striking difference is higher concentrations of ApoB and ApoE, which bind to glycosaminoglycans. We hypothesize that this interaction promotes lipoprotein deposition onto BrM glycosaminoglycans, initiating downstream effects that contribute to RPE dysfunction/death. We tested this hypothesis using two potential therapeutic strategies to alter the lipoprotein/protein profile of these extracellular deposits. First, we used short heparan sulfate oligosaccharides to remove lipoproteins already deposited in both the extracellular matrix of RPE cells and aged donor BrM tissue. Second, an ApoA-1 mimetic, 5A peptide, was demonstrated to modulate the composition and concentration of apolipoproteins secreted from primary porcine RPE cells. Significantly, in a mouse model of AMD, this 5A peptide altered the proteomic profile of circulating HDL and ameliorated some of the potentially harmful changes to the protein composition resulting from the high-fat, high-cholesterol diet in this model. Together, these results suggest that targeting HDL interactions with BrM represents a new strategy to slow AMD progression in humans.
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Affiliation(s)
- Una L Kelly
- Department of Ophthalmology, Duke University Medical Center, Durham, North Carolina, USA
| | - Daniel Grigsby
- Department of Ophthalmology, Duke University Medical Center, Durham, North Carolina, USA
| | - Martha A Cady
- Department of Ophthalmology, Duke University Medical Center, Durham, North Carolina, USA
| | - Michael Landowski
- Department of Ophthalmology, Duke University Medical Center, Durham, North Carolina, USA
| | - Nikolai P Skiba
- Department of Ophthalmology, Duke University Medical Center, Durham, North Carolina, USA
| | - Jian Liu
- Division of Chemical Biology and Medicinal Chemistry, Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Alan T Remaley
- Lipoprotein Metabolism Section, Pulmonary and Vascular Medicine Branch, NHLBI, National Institutes of Health, Bethesda, Maryland, USA
| | - Mikael Klingeborn
- Department of Ophthalmology, Duke University Medical Center, Durham, North Carolina, USA.
| | - Catherine Bowes Rickman
- Department of Ophthalmology, Duke University Medical Center, Durham, North Carolina, USA; Department of Cell Biology, Duke University Medical Center, Durham, North Carolina, USA.
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12
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Roy S, Kim D. Retinal capillary basement membrane thickening: Role in the pathogenesis of diabetic retinopathy. Prog Retin Eye Res 2020; 82:100903. [PMID: 32950677 DOI: 10.1016/j.preteyeres.2020.100903] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 09/08/2020] [Accepted: 09/15/2020] [Indexed: 02/07/2023]
Abstract
Vascular basement membrane (BM) thickening has been hailed over half a century as the most prominent histological lesion in diabetic microangiopathy, and represents an early ultrastructural change in diabetic retinopathy (DR). Although vascular complications of DR have been clinically well established, specific cellular and molecular mechanisms underlying dysfunction of small vessels are not well understood. In DR, small vessels develop insidiously as BM thickening occurs. Studies examining high resolution imaging data have established BM thickening as one of the foremost structural abnormalities of retinal capillaries. This fundamental structural change develops, at least in part, from excess accumulation of BM components. Although BM thickening is closely associated with the development of DR, its contributory role in the pathogenesis of DR is coming to light recently. DR develops over several years before clinical manifestations appear, and it is during this clinically silent period that hyperglycemia induces excess synthesis of BM components, contributes to vascular BM thickening, and promotes structural and functional lesions including cell death and vascular leakage in the diabetic retina. Studies using animal models show promising results in preventing BM thickening with subsequent beneficial effects. Several gene regulatory approaches are being developed to prevent excess synthesis of vascular BM components in an effort to reduce BM thickening. This review highlights current understanding of capillary BM thickening development, role of BM thickening in retinal vascular lesions, and strategies for preventing vascular BM thickening as a potential therapeutic strategy in alleviating characteristic lesions associated with DR.
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Affiliation(s)
- Sayon Roy
- Boston University School of Medicine, Boston, MA, USA.
| | - Dongjoon Kim
- Boston University School of Medicine, Boston, MA, USA
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13
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Abstract
The specific microenvironment that cells reside in fundamentally impacts their broader function in tissues and organs. At its core, this microenvironment is composed of precise arrangements of cells that encourage homotypic and heterotypic cell-cell interactions, biochemical signaling through soluble factors like cytokines, hormones, and autocrine, endocrine, or paracrine secretions, and the local extracellular matrix (ECM) that provides physical support and mechanobiological stimuli, and further regulates biochemical signaling through cell-ECM interactions like adhesions and growth factor sequestering. Each cue provided in the microenvironment dictates cellular behavior and, thus, overall potential to perform tissue and organ specific function. It follows that in order to recapitulate physiological cell responses and develop constructs capable of replacing damaged tissue, we must engineer the cellular microenvironment very carefully. Many great strides have been made toward this goal using various three-dimensional (3D) tissue culture scaffolds and specific media conditions. Among the various 3D biomimetic scaffolds, synthetic hydrogels have emerged as a highly tunable and tissue-like biomaterial well-suited for implantable tissue-engineered constructs. Because many synthetic hydrogel materials are inherently bioinert, they minimize unintentional cell responses and thus are good candidates for long-term implantable grafts, patches, and organs. This review will provide an overview of commonly used biomaterials for forming synthetic hydrogels for tissue engineering applications and techniques for modifying them to with bioactive properties to elicit the desired cell responses.
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Affiliation(s)
- Asli Z Unal
- Department of Biomedical Engineering, Duke University, 101 Science Drive, Campus Box 90281, Durham, North Carolina 27708, United States
| | - Jennifer L West
- Department of Biomedical Engineering, Duke University, 101 Science Drive, Campus Box 90281, Durham, North Carolina 27708, United States
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14
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Tsutsui TW. Dental Pulp Stem Cells: Advances to Applications. STEM CELLS AND CLONING-ADVANCES AND APPLICATIONS 2020; 13:33-42. [PMID: 32104005 PMCID: PMC7025818 DOI: 10.2147/sccaa.s166759] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Accepted: 12/07/2019] [Indexed: 12/18/2022]
Abstract
Dental pulp stem cells (DPSCs) have a high capacity for differentiation and the ability to regenerate a dentin/pulp-like complex. Numerous studies have provided evidence of DPSCs’ differentiation capacity, such as in neurogenesis, adipogenesis, osteogenesis, chondrogenesis, angiogenesis, and dentinogenesis. The molecular mechanisms and functions of DPSCs’ differentiation process are affected by growth factors and scaffolds. For example, growth factors such as basic fibroblast growth factor (bFGF), transforming growth factor-β (TGF-β), nerve growth factor (NGF), platelet-derived growth factor (PDGF), and bone morphogenic proteins (BMPs) influence DPSC fate, including in differentiation, cell proliferation, and wound healing. In addition, several types of scaffolds, such as collagen, hydrogel, decellularized bioscaffold, and nanofibrous spongy microspheres, have been used to characterize DPSC cellular attachment, migration, proliferation, differentiation, and functions. An appropriate combination of growth factors and scaffolds can enhance the differentiation capacity of DPSCs, in terms of optimizing not only dental-related expression but also dental pulp morphology. For a cell-based clinical approach, focus has been placed on the tissue engineering triad [cells/bioactive molecules (growth factors)/scaffolds] to characterize DPSCs. It is clear that a deep understanding of the mechanisms of stem cells, including their aging, self-renewal, microenvironmental homeostasis, and differentiation correlated with cell activity, the energy for which is provided from mitochondria, should provide new approaches for DPSC research and therapeutics. Mitochondrial functions and dynamics are related to the direction of stem cell differentiation, including glycolysis, oxidative phosphorylation, mitochondrial metabolism, mitochondrial transcription factor A (TFAM), mitochondrial elongation, and mitochondrial fusion and fission proteins. This review summarizes the effects of major growth factors and scaffolds for regenerating dentin/pulp-like complexes, as well as elucidating mitochondrial properties of DPSCs for the development of advanced applications research.
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Affiliation(s)
- Takeo W Tsutsui
- Department of Pharmacology, School of Life Dentistry at Tokyo, The Nippon Dental University, Tokyo, Japan
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15
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Vlodavsky I, Sanderson RD, Ilan N. Forty Years of Basic and Translational Heparanase Research. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1221:3-59. [PMID: 32274705 PMCID: PMC7142273 DOI: 10.1007/978-3-030-34521-1_1] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This review summarizes key developments in the heparanase field obtained 20 years prior to cloning of the HPSE gene and nearly 20 years after its cloning. Of the numerous publications and review articles focusing on heparanase, we have selected those that best reflect the progression in the field as well as those we regard important accomplishments with preference to studies performed by scientists and groups that contributed to this book. Apart from a general 'introduction' and 'concluding remarks', the abstracts of these studies are presented essentially as published along the years. We apologize for not being objective and not being able to include some of the most relevant abstracts and references, due to space limitation. Heparanase research can be divided into two eras. The first, initiated around 1975, dealt with identifying the enzyme, establishing the relevant assay systems and investigating its biological activities and significance in cancer and other pathologies. Studies performed during the first area are briefly introduced in a layman style followed by the relevant abstracts presented chronologically, essentially as appears in PubMed. The second era started in 1999 when the heparanase gene was independently cloned by 4 research groups [1-4]. As expected, cloning of the heparanase gene boosted heparanase research by virtue of the readily available recombinant enzyme, molecular probes, and anti-heparanase antibodies. Studies performed during the second area are briefly introduced followed by selected abstracts of key findings, arranged according to specific topics.
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Affiliation(s)
- Israel Vlodavsky
- Technion Integrated Cancer Center (TICC) Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Haifa Israel
| | - Ralph D. Sanderson
- Department of Pathology, University of Alabama at Birmingham, Birmingham, AL USA
| | - Neta Ilan
- Technion Integrated Cancer Center (TICC) Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Haifa Israel
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16
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Sun C, Liu M, Sun P, Yang M, Yates EA, Guo Z, Fernig DG. Sulfated polysaccharides interact with fibroblast growth factors and protect from denaturation. FEBS Open Bio 2019; 9:1477-1487. [PMID: 31271519 PMCID: PMC6668377 DOI: 10.1002/2211-5463.12696] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 06/26/2019] [Accepted: 07/03/2019] [Indexed: 01/08/2023] Open
Abstract
Fibroblast growth factors (FGFs) regulate embryonic development and homeostasis, including tissue and organ repair and specific aspects of metabolism. The basic FGF and acidic FGF, now known as FGF2 and FGF1, are widely used protein drugs for tissue repair. However, they are susceptible to denaturation at ambient temperatures and during long-time storage, which will reduce their biological activity. The interaction of FGFs with the sulfated domains of heparan sulfate and heparin is essential for their cellular signaling and stability. Therefore, we analyzed the interactions of FGF1 and FGF2 with four sulfated polysaccharides: heparin, dextran sulfate (DXS), λ-carrageenan, and chondroitin sulfate. The results of thermal stability and cell proliferation assays demonstrate that heparin, DXS, and λ-carrageenan bound to both FGFs and protected them from denaturation. Our results suggest heparin, DXS, and λ-carrageenan are potential formulation materials that bind and stabilize FGFs, and which may also potentiate their activity and control their delivery.
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Affiliation(s)
- Changye Sun
- Henan Key Laboratory of Medical Tissue RegenerationXinxiang Medical UniversityChina
| | - Mengxin Liu
- Henan Key Laboratory of Medical Tissue RegenerationXinxiang Medical UniversityChina
| | - Panwen Sun
- Henan Key Laboratory of Medical Tissue RegenerationXinxiang Medical UniversityChina
| | - Mingming Yang
- Department of CardiologySchool of MedicineAffiliated Zhongda HospitalSoutheast UniversityNanjingChina
| | - Edwin A. Yates
- Department of BiochemistryInstitute of Integrative BiologyUniversity of LiverpoolUK
| | - Zhikun Guo
- Henan Key Laboratory of Medical Tissue RegenerationXinxiang Medical UniversityChina
| | - David G. Fernig
- Department of BiochemistryInstitute of Integrative BiologyUniversity of LiverpoolUK
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17
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Smoak MM, Han A, Watson E, Kishan A, Grande-Allen KJ, Cosgriff-Hernandez E, Mikos AG. Fabrication and Characterization of Electrospun Decellularized Muscle-Derived Scaffolds. Tissue Eng Part C Methods 2019; 25:276-287. [PMID: 30909819 PMCID: PMC6535957 DOI: 10.1089/ten.tec.2018.0339] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Accepted: 03/06/2019] [Indexed: 12/21/2022] Open
Abstract
Although skeletal muscle has a high potential for self-repair, volumetric muscle loss can result in impairment beyond the endogenous regenerative capacity. There is a clinical need to improve on current clinical treatments that fail to fully restore the structure and function of lost muscle. Decellularized extracellular matrix (dECM) scaffolds have been an attractive platform for regenerating skeletal muscle, as dECM contains many biochemical cues that aid in cell adhesion, proliferation, and differentiation. However, there is limited capacity to tune physicochemical properties in current dECM technologies to improve outcome. In this study, we aim to create a novel, high-throughput technique to fabricate dECM scaffolds with tunable physicochemical properties while retaining proregenerative matrix components. We demonstrate a successful decellularization protocol that effectively removes DNA. We also identified key steps for the successful production of electrospun muscle dECM without the use of a carrier polymer; electrospinning allows for rapid scaffold fabrication with high control over material properties, which can be optimized to mimic native muscle. To this end, fiber orientation and degree of crosslinking of these dECM scaffolds were modulated and the corollary effects on fiber swelling, mechanical properties, and degradation kinetics were investigated. Beyond application in skeletal muscle, the versatility of this technology has the potential to serve as a foundation for dECM scaffold fabrication in a variety of tissue engineering applications.
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Affiliation(s)
- Mollie M. Smoak
- Department of Bioengineering, Rice University, Houston, Texas
| | - Albert Han
- Department of Bioengineering, Rice University, Houston, Texas
| | - Emma Watson
- Department of Bioengineering, Rice University, Houston, Texas
| | - Alysha Kishan
- Department of Biomedical Engineering, University of Texas, Austin, Texas
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18
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Garcia J, Patel N, Basehore S, Clyne AM. Fibroblast Growth Factor-2 Binding to Heparan Sulfate Proteoglycans Varies with Shear Stress in Flow-Adapted Cells. Ann Biomed Eng 2019; 47:1078-1093. [PMID: 30689065 PMCID: PMC6470077 DOI: 10.1007/s10439-019-02202-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Accepted: 01/08/2019] [Indexed: 12/19/2022]
Abstract
Fibroblast growth factor 2 (FGF2), an important regulator of angiogenesis, binds to endothelial cell (EC) surface FGF receptors (FGFRs) and heparan sulfate proteoglycans (HSPGs). FGF2 binding kinetics have been predominantly studied in static culture; however, the endothelium is constantly exposed to flow which may affect FGF2 binding. We therefore used experimental and computational techniques to study how EC FGF2 binding changes in flow. ECs adapted to 24 h of flow demonstrated biphasic FGF2-HSPG binding, with FGF2-HSPG complexes increasing up to 20 dynes/cm2 shear stress and then decreasing at higher shear stresses. To understand how adaptive EC surface remodeling in response to shear stress may affect FGF2 binding to FGFR and HSPG, we implemented a computational model to predict the relative effects of flow-induced surface receptor changes. We then fit the computational model to the experimental data using relationships between HSPG availability and FGF2-HSPG dissociation and flow that were developed from a basement membrane study, as well as including HSPG production. These studies suggest that FGF2 binding kinetics are altered in flow-adapted ECs due to changes in cell surface receptor quantity, availability, and binding kinetics, which may affect cell growth factor response.
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Affiliation(s)
- Jonathan Garcia
- School of Biomedical Engineering, Science and Health Systems, Drexel University, 3141 Chestnut St, Philadelphia, PA, USA
| | - Nisha Patel
- School of Biomedical Engineering, Science and Health Systems, Drexel University, 3141 Chestnut St, Philadelphia, PA, USA
| | - Sarah Basehore
- School of Biomedical Engineering, Science and Health Systems, Drexel University, 3141 Chestnut St, Philadelphia, PA, USA
| | - Alisa Morss Clyne
- Mechanical Engineering and Mechanics Department, Drexel University, 3141 Chestnut St, Philadelphia, PA, USA.
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19
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Lansky Z, Mutsafi Y, Houben L, Ilani T, Armony G, Wolf SG, Fass D. 3D mapping of native extracellular matrix reveals cellular responses to the microenvironment. JOURNAL OF STRUCTURAL BIOLOGY-X 2019; 1:100002. [PMID: 32055794 PMCID: PMC7001979 DOI: 10.1016/j.yjsbx.2018.100002] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 11/23/2018] [Accepted: 12/07/2018] [Indexed: 01/23/2023]
Abstract
Cells and extracellular matrix (ECM) are mutually interdependent: cells guide self-assembly of ECM precursors, and the resulting ECM architecture supports and instructs cells. Though bidirectional signaling between ECM and cells is fundamental to cell biology, it is challenging to gain high-resolution structural information on cellular responses to the matrix microenvironment. Here we used cryo-scanning transmission electron tomography (CSTET) to reveal the nanometer- to micron-scale organization of major fibroblast ECM components in a native-like context, while simultaneously visualizing internal cell ultrastructure including organelles and cytoskeleton. In addition to extending current models for collagen VI fibril organization, three-dimensional views of thick cell regions and surrounding matrix showed how ECM networks impact the structures and dynamics of intracellular organelles and how cells remodel ECM. Collagen VI and fibronectin were seen to distribute in fundamentally different ways in the cell microenvironment and perform distinct roles in supporting and interacting with cells. This work demonstrates that CSTET provides a new perspective for the study of ECM in cell biology, highlighting labeled extracellular elements against a backdrop of unlabeled but morphologically identifiable cellular features with nanometer resolution detail.
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Affiliation(s)
- Zipora Lansky
- Department of Structural Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Yael Mutsafi
- Department of Structural Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Lothar Houben
- Department of Chemical Research Support, Weizmann Institute of Science, Rehovot, Israel
| | - Tal Ilani
- Department of Structural Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Gad Armony
- Department of Structural Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Sharon G. Wolf
- Department of Chemical Research Support, Weizmann Institute of Science, Rehovot, Israel
| | - Deborah Fass
- Department of Structural Biology, Weizmann Institute of Science, Rehovot, Israel
- Corresponding author.
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Abstract
Thrombosis is a major cause of morbidity and mortality in cancer patients. The pathogenesis of blood coagulation activation in oncological patients is complex and involves both clinical and biological factors. Abnormalities in one or more coagulation test are common in cancer patients, even without thrombotic manifestations, indicating an ongoing hypercoagulable condition. Moreover, venous thromboembolism (VTE) can be the first symptom of an occult malignancy in an otherwise healthy individual. The levels of laboratory markers of activation of blood coagulation parallel the development of malignancy, being the coagulant mechanisms important for both thrombogenesis and tumor progression. Besides general clinical risk factors for VTE, also disease-specific clinical factors, i.e., type and stage of the tumor, and anticancer therapies increase the thrombotic risk in these patients. Furthermore, biological factors, including the cancer cell-specific prothrombotic properties together with the host cell inflammatory response to the tumor, are relevant as well as unique players in the pathogenesis of the cancer-associated hypercoagulability. Cancer cells produce and release procoagulant and fibrinolytic proteins, inflammatory cytokines, and procoagulant microparticles. They also express adhesion molecules binding to the receptors of host vascular cells (i.e., endothelial cells, platelets, and leukocytes), thereby stimulating the prothrombotic properties of these normal cells, including the shed of cell-specific microparticles and neutrophil extracellular traps. Of interest, several genes responsible for the cellular neoplastic transformation drive the programs of hemostatic properties expressed by cancer tissues. A better understanding of such mechanisms will help the development of novel strategies to prevent and treat the Trousseau's syndrome (i.e., cancer-associated thrombosis).
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Affiliation(s)
- Anna Falanga
- Department of Transfusion Medicine and Hematology, Hospital Papa Giovanni XXIII, Bergamo, Italy.
- University of Milan Bicocca, School of Medicine and Surgery, Monza, Italy.
| | - Francesca Schieppati
- Department of Transfusion Medicine and Hematology, Hospital Papa Giovanni XXIII, Bergamo, Italy
| | - Laura Russo
- Department of Transfusion Medicine and Hematology, Hospital Papa Giovanni XXIII, Bergamo, Italy
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21
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Solymar M, Ivic I, Balasko M, Fulop BD, Toth G, Tamas A, Reman G, Koller A, Reglodi D. Pituitary adenylate cyclase-activating polypeptide ameliorates vascular dysfunction induced by hyperglycaemia. Diab Vasc Dis Res 2018; 15:277-285. [PMID: 29466879 DOI: 10.1177/1479164118757922] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Short-lasting hyperglycaemia occurs frequently in prediabetes and poorly controlled diabetes mellitus leading to vascular damage. Pituitary adenylate cyclase-activating polypeptide (PACAP) has been shown to play a protective role in vascular complications of diabetes; moreover, antioxidant effects of PACAP were also described. Therefore, we hypothesized that PACAP exerts protective effects in short-term hyperglycaemia-induced vascular dysfunctions. METHODS After short-term hyperglycaemia, acetylcholine-induced and sodium nitroprusside-induced vascular relaxation of mouse carotid arteries were tested with a myograph with or without the presence of PACAP or superoxide dismutase. Potential direct antioxidant superoxide-scavenging action of pituitary adenylate cyclase-activating peptide was tested with pyrogallol autoxidation assay; furthermore, the effect of pituitary adenylate cyclase-activating peptide or superoxide dismutase was investigated on hyperglycaemia-associated vascular markers. RESULTS PACAP administration resulted in reduced endothelial dysfunction after a 1-h hyperglycaemic episode. PACAP was able to restore acetylcholine-induced relaxation of the vessels and improved sodium nitroprusside-induced relaxation. This effect was comparable to the protective effect of superoxide dismutase, but PACAP was unable to directly scavenge superoxide produced by autoxidation of pyrogallol. Endothelial dysfunction was associated with elevated levels of fibroblast growth factor basic, matrix metalloproteinase 9 and nephroblastoma overexpressed gene proteins. Their release was reduced by PACAP administration. CONCLUSION These results suggest a strong protective role of PACAP in the vascular complications of diabetes.
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Affiliation(s)
- Margit Solymar
- 1 Institute for Translational Medicine, Medical School, University of Pécs, Pécs, Hungary
| | - Ivan Ivic
- 2 Department of Anatomy, MTA-PTE PACAP Research Team, Centre for Neuroscience, Medical School, University of Pécs, Pécs, Hungary
| | - Marta Balasko
- 1 Institute for Translational Medicine, Medical School, University of Pécs, Pécs, Hungary
| | - Balazs D Fulop
- 2 Department of Anatomy, MTA-PTE PACAP Research Team, Centre for Neuroscience, Medical School, University of Pécs, Pécs, Hungary
| | - Gabor Toth
- 3 Department of Medical Chemistry, University of Szeged, Szeged, Hungary
| | - Andrea Tamas
- 2 Department of Anatomy, MTA-PTE PACAP Research Team, Centre for Neuroscience, Medical School, University of Pécs, Pécs, Hungary
| | - Gyongyver Reman
- 2 Department of Anatomy, MTA-PTE PACAP Research Team, Centre for Neuroscience, Medical School, University of Pécs, Pécs, Hungary
| | - Akos Koller
- 4 Department of Physiology, New York Medical College, Valhalla, NY, USA
- 5 Department of Neurosurgery, Medical School, University of Pécs, Pécs, Hungary
- 6 Institute of Natural Sciences, University of Physical Education, Budapest, Hungary
| | - Dora Reglodi
- 2 Department of Anatomy, MTA-PTE PACAP Research Team, Centre for Neuroscience, Medical School, University of Pécs, Pécs, Hungary
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Guarino M, Squillaci S, Reale D, Micoli G. The Basement Membranes in Sarcomatoid Carcinomas. An Immunohistochemical Study. TUMORI JOURNAL 2018; 79:128-32. [PMID: 8346565 DOI: 10.1177/030089169307900210] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Aims Eight sarcomatoid carcinomas from various anatomical locations were investigated by immunohistochemical staining to laminin, type IV collagen and heparan sulfate proteoglycan, to study the characteristics of basement membranes at the interface between carcinomatous and sarcomatous tissues. Methods Paraffin wax embedded tissue sections from representative tumor samples have been stained with specific antibodies, using the peroxidase-antiperoxidase technique. Results In all cases several interruptions or discontinuities of the basement membrane staining pattern were seen. In 4 cases, larger defects or complete loss of staining was also noted. At these places, the boundaries between carcinomatous and sarcomatous tissue were often blurred. Conclusions Disruption and loss of basement membranes at interface between carcinomatous and sarcomatous tissues is a frequent finding in sarcomatoid carcinomas. These changes could be consistent with an epithelial origin of the sarcomatous component in these tumors by means of an epithelial-mesenchymal conversion mechanism.
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Affiliation(s)
- M Guarino
- Department of Anatomical Pathology, Hospital of Treviglio, Italy
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23
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Sirois É, Côté M, Doillon C. Growth Factors and Biological Supports for Endothelial Cell Lining: In Vitro Study. Int J Artif Organs 2018. [DOI: 10.1177/039139889301600808] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Endothelial cell covering over the vascular prosthesis luminal surface is a process that may require the presence of growth factors (GFs) and extracellular matrix supports. Endothelialization could be improved by combining both GFs and an extracellular matrix analog. In the present study, different biological substrates made of type I or IV collagens, gelatin, fibronectin, fibrin, laminin, chondroitin sulphate, heparan sulphate, heparin or hyaluronic acid were used to support endothelial cell culture. An endothelial cell growth supplement (ECGS) was incorporated in (group 1) or overlaid on (group 2) the substrates; or present in medium (group 3); or absent (group 4). GF binding assay using 125I bFGF showed that more GF remained combined to the substrates in group 2 than those in group 1. Growth and morphology of human umbilical vein endothelial cells were sequentially analyzed in vitro for 8 days using DNA (nuclei counts) and F-actin labelings. Growth was relatively stable for the first 48 hours, later in groups 1, 2 and 4, cell death was observed on all the substrates except for fibronectin. Growth failure could be related to the degradation or inefficient release of ECGS. In group 3, growth increased and confluency was reached within 5–8 days on all the substrates except for gelatin and type I collagen. Confluent cells containing actin filaments were organized on glycoproteins and disorganized on glycosaminoglycans and fibrin. Despite that glycoproteins can enhance cell adhesion and lining pattern, GFs continually delivered in a fresh soluble form seem to be the appropriate condition to obtain an endothelial cell lining.
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Affiliation(s)
- É. Sirois
- Dept. of Surgery, Université Laval and Biomaterials Institute, Hôpital Saint-François d'Assise, Québec - Canada
| | - M.F. Côté
- Dept. of Surgery, Université Laval and Biomaterials Institute, Hôpital Saint-François d'Assise, Québec - Canada
| | - C.J. Doillon
- Dept. of Surgery, Université Laval and Biomaterials Institute, Hôpital Saint-François d'Assise, Québec - Canada
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Patient derived xenografts (PDX) predict an effective heparanase-based therapy for lung cancer. Oncotarget 2018; 9:19294-19306. [PMID: 29721203 PMCID: PMC5922397 DOI: 10.18632/oncotarget.25022] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Accepted: 03/17/2018] [Indexed: 01/04/2023] Open
Abstract
Heparanase, the sole heparan sulfate (HS) degrading endoglycosidase, regulates multiple biological activities that enhance tumor growth, metastasis, angiogenesis, and inflammation. Heparanase accomplishes this by degrading HS and thereby facilitating cell invasion and regulating the bioavailability of heparin-binding proteins. HS mimicking compounds that inhibit heparanase enzymatic activity were examined in numerous preclinical cancer models. While these studies utilized established tumor cell lines, the current study utilized, for the first time, patient-derived xenografts (PDX) which better resemble the behavior and drug responsiveness of a given cancer patient. We have previously shown that heparanase levels are substantially elevated in lung cancer, correlating with reduced patients survival. Applying patient-derived lung cancer xenografts and a potent inhibitor of heparanase enzymatic activity (PG545) we investigated the significance of heparanase in the pathogenesis of lung cancer. PG545 was highly effective in lung cancer PDX, inhibiting tumor growth in >85% of the cases. Importantly, we show that PG545 was highly effective in PDX that did not respond to conventional chemotherapy (cisplatin) and vice versa. Moreover, we show that spontaneous metastasis to lymph nodes is markedly inhibited by PG545 but not by cisplatin. These results reflect the variability among patients and strongly imply that PG545 can be applied for lung cancer therapy in a personalized manner where conventional chemotherapy fails, thus highlighting the potential benefits of developing anti-heparanase treatment modalities for oncology.
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25
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Abstract
The aim of this study is to optimize conditions for growing endothelial cells on vascular biomaterials. Bovine cornea endothelial cells (BCEC), stimulated by basic Fibroblast Growth Factor (bFGF) secrete an extracellular matrix (ECM) similar to the Descemet membrane produced in vivo by these cells. This ECM, obtained by removing BCEC with an hypotonic shock can be used as a substratum for other endothelial cell growth. Human endothelial cells (HEC) were purified from omentum that was digested with a solution of collagenase-dispase, then filtered through nylon meshes. The cells were further purified by centrifugation onto a Percoll gradient. A comparative study on the attachment and growth of HEC on various coatings (laminin, poly-L-lysine, fibronectin or ECM) indicates that ECM is the most performing substratum. The quality of this endothelium was confirmed by the presence of factor VIII, and MHC class I and the absence of class II antigens.
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26
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Desgranges P, Barritault D, Caruelle J, Tardieu M. Transmural Endothelialization of Vascular Prostheses is Regulated in Vitro by Fibroblast Growth Factor 2 and Heparan-Like Molecule. Int J Artif Organs 2018. [DOI: 10.1177/039139889702001009] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Endothelialization of vascular prostheses may result from transmural migration of endothelial cells. Angiogenesis is controlled by growth factors like Fibroblast Growth Factor 2 (FGF2) and regulators like heparan-like molecules. To that end, we used heparan-like molecules named RGTA for ReGeneraTing Agent. The RGTA11 used was a chemically derived dextran obtained by successive substitutions with carboxymethyl, benzylamide, and benzylamide sulfonate groups on glucose residues. This agent was further selected for its ability to bind, stabilize and protect FGF2. We defined firstly the angiogenic capability of FGF2 in combination with RGTA 11 on bovine aortic endothelial cells (BAEC) cultured on collagen I gels. Secondly, the role of FGF2 and RGTA 11 in transmural endothelialization was assessed in a three-dimensional in vitro model using a polyethylene terephtalate prosthesis included in collagen gel. BAEC seeded on the external face can migrate to the luminal face of the prosthesis. Microscopic and histological evaluations were performed at 4 and 7 days. Results showed that the addition of RGTA 11 alone did not promote angiogenesis while FGF2 alone did. However, RGTA11 combined with FGF2 produced a significant acceleration in angiogenesis compared to FGF2 alone. This combination magnifies and enhances the angiogenic processes leading to endothelialization of luminal face through transmural cellular migration. Our data demonstrates that in vitro transmural endothelialization of porous vascular prostheses by BAEC cultured on collagen I gels is upregulated by RGTA 11 combined with FGF2.
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Affiliation(s)
- P. Desgranges
- Centre de Recherches Chirurgicales, CNRS URA 1431, Hopital Henri Mondor, Creteil
| | - D. Barritault
- Laboratoire de Recherche sur la Croissance Cellulaire, la Regénération et la Réparation Tissulaires, Université Paris XII Val de Marne, CNRS URA 1813, Creteil - France
| | - J.P. Caruelle
- Laboratoire de Recherche sur la Croissance Cellulaire, la Regénération et la Réparation Tissulaires, Université Paris XII Val de Marne, CNRS URA 1813, Creteil - France
| | - M. Tardieu
- Laboratoire de Recherche sur la Croissance Cellulaire, la Regénération et la Réparation Tissulaires, Université Paris XII Val de Marne, CNRS URA 1813, Creteil - France
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27
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Ripamonti U. Functionalized Surface Geometries Induce: " Bone: Formation by Autoinduction". Front Physiol 2018; 8:1084. [PMID: 29467661 PMCID: PMC5808255 DOI: 10.3389/fphys.2017.01084] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Accepted: 12/08/2017] [Indexed: 12/15/2022] Open
Abstract
The induction of tissue formation, and the allied disciplines of tissue engineering and regenerative medicine, have flooded the twenty-first century tissue biology scenario and morphed into high expectations of a fulfilling regenerative dream of molecularly generated tissues and organs in assembling human tissue factories. The grand conceptualization of deploying soluble molecular signals, first defined by Turing as forms generating substances, or morphogens, stemmed from classic last century studies that hypothesized the presence of morphogens in several mineralized and non-mineralized mammalian matrices. The realization of morphogens within mammalian matrices devised dissociative extractions and chromatographic procedures to isolate, purify, and finally reconstitute the cloned morphogens, found to be members of the transforming growth factor-β (TGF-β) supergene family, with insoluble signals or substrata to induce de novo tissue induction and morphogenesis. Can we however construct macroporous bioreactors per se capable of inducing bone formation even without the exogenous applications of the osteogenic soluble molecular signals of the TGF-β supergene family? This review describes original research on coral-derived calcium phosphate-based macroporous constructs showing that the formation of bone is independent of the exogenous application of the osteogenic soluble signals of the TGF-β supergene family. Such signals are the molecular bases of the induction of bone formation. The aim of this review is to primarily describe today's hottest topic of biomaterials' science, i.e., to construct and define osteogenetic biomaterials' surfaces that per se, in its own right, do initiate the induction of bone formation. Biomaterials are often used to reconstruct osseous defects particularly in the craniofacial skeleton. Edentulism did spring titanium implants as tooth replacement strategies. No were else that titanium surfaces require functionalized geometric nanotopographic cues to set into motion osteogenesis independently of the exogenous application of the osteogenic soluble molecular signals. Inductive morphogenetic surfaces are the way ahead of biomaterials' science: the connubium of stem cells on primed functionalized surfaces precisely regulates gene expression and the induction of the osteogenic phenotype.
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Affiliation(s)
- Ugo Ripamonti
- Bone Research Laboratory, Faculty of Health Sciences, School of Oral Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
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28
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Li W, Yan Z, Ren J, Qu X. Manipulating cell fate: dynamic control of cell behaviors on functional platforms. Chem Soc Rev 2018; 47:8639-8684. [DOI: 10.1039/c8cs00053k] [Citation(s) in RCA: 88] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
We review the recent advances and new horizons in the dynamic control of cell behaviors on functional platforms and their applications.
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Affiliation(s)
- Wen Li
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resource Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Science
- Changchun
- P. R. China
| | - Zhengqing Yan
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resource Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Science
- Changchun
- P. R. China
| | - Jinsong Ren
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resource Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Science
- Changchun
- P. R. China
| | - Xiaogang Qu
- Laboratory of Chemical Biology and State Key Laboratory of Rare Earth Resource Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Science
- Changchun
- P. R. China
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29
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Han X, Li H, Hua W, Dai L, Ao Z, Liao F, Han D. Fluid in the tissue channels of vascular adventitia investigated by AFM and TEM. Clin Hemorheol Microcirc 2017; 67:173-182. [DOI: 10.3233/ch-170284] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Xinxiao Han
- CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
| | | | - Wenda Hua
- CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, China
| | - Luru Dai
- CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, China
| | - Zhuo Ao
- CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, China
| | - Fulong Liao
- CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, China
| | - Dong Han
- CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, China
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30
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Zhang X, Li H, Sun J, Luo X, Yang H, Xie L, Yang B, Guo W, Tian W. Cell-derived micro-environment helps dental pulp stem cells promote dental pulp regeneration. Cell Prolif 2017; 50. [PMID: 28741725 DOI: 10.1111/cpr.12361] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2017] [Accepted: 05/19/2017] [Indexed: 02/05/2023] Open
Abstract
OBJECTIVES The function of the dental pulp is closely connected to the extracellular matrix (ECM) structure, and ECM has received significant attention due to its biological functions for regulating cells. As such, the interaction between the ECM niche and cells is worth exploring for potential clinical uses. MATERIALS AND METHODS In this study, dental pulp stem cell (DPSC)-derived ECM (DPM) was prepared through cell culture and decellularization to function as the cell niche, and changes in DPSC behaviour and histological analysis of dental pulp tissue regeneration were evaluated following the DPM culture. DPM promoted the replication of DPSCs and exhibited retention of their mineralization. Then, the DPM-based culture strategy under odontogenic culture medium was further investigated, and the mineralization-related markers showed that DPSCs were regulated towards odontogenic differentiation. Dental pulp-like tissue with well-arranged ECM was harvested after a 2-month subcutaneous implantation in nude mice with DPM application. Additionally, DPSCs cultured on the plastic culture surface showed the up-regulation of mineralization makers in vitro, but there was a disorder in matrix formation and mineralization when the cells were cultured in vivo. RESULTS AND CONCLUSIONS DPM-based cultivation could serve as a cell niche and modulate DPSC behaviour, and this method also provided an alternative to harvest tissue-specific ECM and provided a strategy for ECM-cell interaction.
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Affiliation(s)
- Xuexin Zhang
- National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Department of Stomatology, Beijing Tongren Hospital Affiliated to Capital Medical University, Beijing, China.,State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Hui Li
- National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jingjing Sun
- National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xiangyou Luo
- National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Hefeng Yang
- National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Li Xie
- National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Bo Yang
- National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Weihua Guo
- National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Department of Pediatric, West China College of Stomatology, Sichuan University, Chengdu, China
| | - Weidong Tian
- National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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31
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Current approaches for modulation of the nanoscale interface in the regulation of cell behavior. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2017; 14:2455-2464. [PMID: 28552647 PMCID: PMC6173683 DOI: 10.1016/j.nano.2017.03.020] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Revised: 02/20/2017] [Accepted: 03/09/2017] [Indexed: 11/22/2022]
Abstract
Regulation of cell behavior in response to nanoscale features has been the focus of much research in recent years and the successful generation of nanoscale features capable of mimicking the natural nanoscale interface has been of great interest in the field of biomaterials research. In this review, we discuss relevant nanofabrication techniques and how they are combined with bioengineering applications to mimic the natural extracellular matrix (ECM) and create valuable nanoscale interfaces.
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32
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FDA-Approved Oligonucleotide Therapies in 2017. Mol Ther 2017; 25:1069-1075. [PMID: 28366767 DOI: 10.1016/j.ymthe.2017.03.023] [Citation(s) in RCA: 461] [Impact Index Per Article: 65.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Revised: 03/08/2017] [Accepted: 03/15/2017] [Indexed: 01/16/2023] Open
Abstract
Oligonucleotides (oligos) have been under clinical development for approximately the past 30 years, beginning with antisense oligonucleotides (ASOs) and apatmers and followed about 15 years ago by siRNAs. During that lengthy period of time, numerous clinical trials have been performed and thousands of trial participants accrued onto studies. Of all the molecules evaluated as of January 2017, the regulatory authorities assessed that six provided clear clinical benefit in rigorously controlled trials. The story of these six is given in this review.
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33
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Engebretson B, Mussett ZR, Sikavitsas VI. Tenocytic extract and mechanical stimulation in a tissue-engineered tendon construct increases cellular proliferation and ECM deposition. Biotechnol J 2017; 12. [DOI: 10.1002/biot.201600595] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Revised: 12/08/2016] [Accepted: 12/21/2016] [Indexed: 01/30/2023]
Affiliation(s)
- Brandon Engebretson
- School of Chemical, Biological and Materials Engineering; University of Oklahoma; Norman OK USA
| | - Zachary R. Mussett
- Stephenson School of Biomedical Engineering; University of Oklahoma; Norman OK USA
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34
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Wu J, Ravikumar P, Nguyen KT, Hsia CCW, Hong Y. Lung protection by inhalation of exogenous solubilized extracellular matrix. PLoS One 2017; 12:e0171165. [PMID: 28151947 PMCID: PMC5289529 DOI: 10.1371/journal.pone.0171165] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Accepted: 01/17/2017] [Indexed: 01/29/2023] Open
Abstract
Decellularized extracellular matrix (ECM) contains complex tissue-specific components that work in concert to promote tissue repair and constructive remodeling and has been used experimentally and clinically to accelerate epithelial wound repair, leading us to hypothesize that lung-derived ECM could mitigate acute lung injury. To explore the therapeutic potential of ECM for noninvasive delivery to the lung, we decellularized and solubilized porcine lung ECM, then characterized the composition, concentration, particle size and stability of the preparation. The ECM preparation at 3.2 mg/mL with average particle size <3 μm was tested in vitro on human A549 lung epithelial cells exposed to 95% O2 for 24 hours, and in vivo by tracheal instillation or nebulization into the lungs of rats exposed intermittently or continuously to 90% O2 for a cumulative 72 hours. Our results showed that the preparation was enriched in collagen, reduced in glycosaminoglycans, and contained various bioactive molecules. Particle size was concentration-dependent. Compared to the respective controls treated with cell culture medium in vitro or saline in vivo, ECM inhalation normalized cell survival and alveolar morphology, and reduced hyperoxia-induced apoptosis and oxidative damage. This proof-of-concept study established the methodology, feasibility and therapeutic potential of exogenous solubilized ECM for pulmonary cytoprotection, possibly as an adjunct or potentiator of conventional therapy.
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Affiliation(s)
- Jinglei Wu
- Department of Bioengineering, University of Texas at Arlington, Arlington, Texas, United States of America
- Joint Graduate Program in Biomedical Engineering between University of Texas at Arlington and University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
| | - Priya Ravikumar
- Department of Internal Medicine, Pulmonary and Critical Care Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
| | - Kytai T. Nguyen
- Department of Bioengineering, University of Texas at Arlington, Arlington, Texas, United States of America
- Joint Graduate Program in Biomedical Engineering between University of Texas at Arlington and University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
| | - Connie C. W. Hsia
- Joint Graduate Program in Biomedical Engineering between University of Texas at Arlington and University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
- Department of Internal Medicine, Pulmonary and Critical Care Medicine, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
| | - Yi Hong
- Department of Bioengineering, University of Texas at Arlington, Arlington, Texas, United States of America
- Joint Graduate Program in Biomedical Engineering between University of Texas at Arlington and University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
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35
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Abstract
Heparanase is an endo-β-D-glucuronidase that is capable of cleaving heparan sulfate side chains of heparan sulfate proteoglycans on cell surfaces and the extracellular matrix. This activity is strongly implicated in tumor metastasis and angiogenesis. We have earlier demonstrated that apart of its well characterized enzymatic activity, heparanase may also affect the hemostatic system in a non-enzymatic manner. We showed that heparanase up-regulated the expression of the blood coagulation initiator-tissue factor (TF) and interacted with the tissue factor pathway inhibitor (TFPI) on the cell surface membrane of endothelial and tumor cells, leading to dissociation of TFPI and resulting in increased cell surface coagulation activity. Moreover, we demonstrated that heparanase directly enhanced TF activity, which led to increased factor Xa production and subsequent activation of the coagulation system. In patients with cancer, increased heparanase procoagulant activity appeared to be a potential predictor of survival. We have also shown that JAK-2 is involved in heparanase up-regulation via the erythropoietin receptor, a finding that may point to a new mechanism of thrombosis in JAK-2 positive patents with essential thrombocytosis. Recently, we found that the solvent accessible surface of TFPI-2 first Kunitz domain had a role in TF/heparanase complex inhibition. Peptides derived from TFPI-2 inhibitory site were shown to reduce coagulation activation induced by heparanase and to attenuate sepsis severity and tumor growth in a mouse model, without predisposing to significant bleeding tendency. These data imply that inhibition of heparanase procoagulant domain is potentially a good target for sepsis and cancer therapy.
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Affiliation(s)
- Yona Nadir
- Thrombosis and Hemostasis Unit, Department of Hematology, Rambam Health Care Campus, Haifa, Israel.
| | - Benjamin Brenner
- Thrombosis and Hemostasis Unit, Department of Hematology, Rambam Health Care Campus, Haifa, Israel
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36
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Li Y, Sun C, Yates EA, Jiang C, Wilkinson MC, Fernig DG. Heparin binding preference and structures in the fibroblast growth factor family parallel their evolutionary diversification. Open Biol 2016; 6:rsob.150275. [PMID: 27030175 PMCID: PMC4821243 DOI: 10.1098/rsob.150275] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
The interaction of a large number of extracellular proteins with heparan sulfate (HS) regulates their transport and effector functions, but the degree of molecular specificity underlying protein–polysaccharide binding is still debated. The 15 paracrine fibroblast growth factors (FGFs) are one of the paradigms for this interaction. Here, we measure the binding preferences of six FGFs (FGF3, FGF4, FGF6, FGF10, FGF17, FGF20) for a library of modified heparins, representing structures in HS, and model glycosaminoglycans, using differential scanning fluorimetry. This is complemented by the identification of the lysine residues in the primary and secondary binding sites of the FGFs by a selective labelling approach. Pooling these data with previous sets provides good coverage of the FGF phylogenetic tree, deduced from amino acid sequence alignment. This demonstrates that the selectivity of the FGFs for binding structures in sulfated polysaccharides and the pattern of secondary binding sites on the surface of FGFs follow the phylogenetic relationship of the FGFs, and so are likely to be the result of the natural selection pressures that led to the expansion of the FGF family in the course of the evolution of more complex animal body plans.
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Affiliation(s)
- Yong Li
- Department of Biochemistry, Institute of Integrative Biology, University of Liverpool, Biosciences Building, Crown Street, Liverpool L69 7ZB, UK
| | - Changye Sun
- Department of Biochemistry, Institute of Integrative Biology, University of Liverpool, Biosciences Building, Crown Street, Liverpool L69 7ZB, UK
| | - Edwin A Yates
- Department of Biochemistry, Institute of Integrative Biology, University of Liverpool, Biosciences Building, Crown Street, Liverpool L69 7ZB, UK
| | - Chao Jiang
- School of Pharmaceutical Science, Wenzhou Medical University, Chashan University Park, Wenzhou 325035, China
| | - Mark C Wilkinson
- Department of Biochemistry, Institute of Integrative Biology, University of Liverpool, Biosciences Building, Crown Street, Liverpool L69 7ZB, UK
| | - David G Fernig
- Department of Biochemistry, Institute of Integrative Biology, University of Liverpool, Biosciences Building, Crown Street, Liverpool L69 7ZB, UK
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37
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Effects of Smoking on Central Corneal Thickness and the Corneal Endothelial Cell Layer in Otherwise Healthy Subjects. Eye Contact Lens 2016; 42:303-7. [DOI: 10.1097/icl.0000000000000212] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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38
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An intramembranous ossification model for the in silico analysis of bone tissue formation in tooth extraction sites. J Theor Biol 2016; 401:64-77. [PMID: 27113783 DOI: 10.1016/j.jtbi.2016.04.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Revised: 04/14/2016] [Accepted: 04/18/2016] [Indexed: 01/10/2023]
Abstract
The accurate modeling of biological processes allows us to predict the spatiotemporal behavior of living tissues by computer-aided (in silico) testing, a useful tool for the development of medical strategies, avoiding the expenses and potential ethical implications of in vivo experimentation. A model for bone healing in mouth would be useful for selecting proper surgical techniques in dental procedures. In this paper, the formulation and implementation of a model for Intramembranous Ossification is presented aiming to describe the complex process of bone tissue formation in tooth extraction sites. The model consists in a mathematical description of the mechanisms in which different types of cells interact, synthesize and degrade extracellular matrices under the influence of biochemical factors. Special attention is given to angiogenesis, oxygen-dependent effects and growth factor-induced apoptosis of fibroblasts. Furthermore, considering the depth-dependent vascularization of mandibular bone and its influence on bone healing, a functional description of the cell distribution on the severed periodontal ligament (PDL) is proposed. The developed model was implemented using the finite element method (FEM) and successfully validated by simulating an animal in vivo experiment on dogs reported in the literature. A good fit between model outcome and experimental data was obtained with a mean absolute error of 3.04%. The mathematical framework presented here may represent an important tool for the design of future in vitro and in vivo tests, as well as a precedent for future in silico studies on osseointegration and mechanobiology.
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Sawicka M, Janowska J, Chudek J. Potential beneficial effect of some adipokines positively correlated with the adipose tissue content on the cardiovascular system. Int J Cardiol 2016; 222:581-589. [PMID: 27513655 DOI: 10.1016/j.ijcard.2016.07.054] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Revised: 06/12/2016] [Accepted: 07/04/2016] [Indexed: 01/30/2023]
Abstract
Obesity is a risk factor of cardiovascular diseases. However, in the case of heart failure, obese and overweight patients have a more favourable prognosis compared to patients who have a normal body weight. This phenomenon is referred to as the "obesity paradox," and it is explained by, among others, a positive effect of adipokines produced by adipose tissue, particularly by the tissue located in the direct vicinity of the heart and blood vessels. The favourable effect on the cardiovascular system is mostly associated with adiponectin and omentin, but the levels of these substances are reduced in obese patients. Among the adipokines which levels are positively correlated with the adipose tissue content, favourable activity is demonstrated by apelin, progranulin, chemerin, TNF-α (tumour necrosis factor-)α, CTRP-3 (C1q/tumour necrosis factor (TNF) related protein), leptin, visfatin and vaspin. This activity is associated with the promotion of regeneration processes in the damaged myocardium, formation of new blood vessels, reduction of the afterload, improvement of metabolic processes in cardiomyocytes and myocardial contractile function, inhibition of apoptosis and fibrosis of the myocardium, as well as anti-inflammatory and anti-atheromatous effects. The potential use of these properties in the treatment of heart failure and ischaemic heart disease, as well as in pulmonary hypertension, arterial hypertension and the limitation of the loss of cardiomyocytes during cardioplegia-requiring cardiosurgical procedures, is studied. The most advanced studies focus on analogues of apelin and progranulin.
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Affiliation(s)
- Magdalena Sawicka
- Department of Cardiology, Congenital Heart Diseases and Electrotherapy, Silesian Center for Heart Diseases, 9 Maria Skłodowska- Curie Street, 41-800 Zabrze, Poland; Department of Pathophysiology, Faculty of Medicine, Medical University of Silesia, 18 Medyków Street, 40-027 Katowice, Poland.
| | - Joanna Janowska
- Department of Pathophysiology, Faculty of Medicine, Medical University of Silesia, 18 Medyków Street, 40-027 Katowice, Poland
| | - Jerzy Chudek
- Department of Pathophysiology, Faculty of Medicine, Medical University of Silesia, 18 Medyków Street, 40-027 Katowice, Poland
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40
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Sun C, Marcello M, Li Y, Mason D, Lévy R, Fernig DG. Selectivity in glycosaminoglycan binding dictates the distribution and diffusion of fibroblast growth factors in the pericellular matrix. Open Biol 2016; 6:150277. [PMID: 27009190 PMCID: PMC4821244 DOI: 10.1098/rsob.150277] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Accepted: 03/02/2016] [Indexed: 12/13/2022] Open
Abstract
The range of biological outcomes generated by many signalling proteins in development and homeostasis is increased by their interactions with glycosaminoglycans, particularly heparan sulfate (HS). This interaction controls the localization and movement of these signalling proteins, but whether such control depends on the specificity of the interactions is not known. We used five fibroblast growth factors with an N-terminal HaloTag (Halo-FGFs) for fluorescent labelling, with well-characterized and distinct HS-binding properties, and measured their binding and diffusion in pericellular matrix of fixed rat mammary 27 fibroblasts. Halo-FGF1, Halo-FGF2 and Halo-FGF6 bound to HS, whereas Halo-FGF10 also interacted with chondroitin sulfate/dermatan sulfate, and FGF20 did not bind detectably. The distribution of bound FGFs in the pericellular matrix was not homogeneous, and for FGF10 exhibited striking clusters. Fluorescence recovery after photobleaching showed that FGF2 and FGF6 diffused faster, whereas FGF1 diffused more slowly, and FGF10 was immobile. The results demonstrate that the specificity of the interactions of proteins with glycosaminoglycans controls their binding and diffusion. Moreover, cells regulate the spatial distribution of different protein-binding sites in glycosaminoglycans independently of each other, implying that the extracellular matrix has long-range structure.
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Affiliation(s)
- Changye Sun
- Department of Biochemistry, Institute of Integrative Biology, University of Liverpool, Liverpool L69 7ZB, UK
| | - Marco Marcello
- Centre for Cell Imaging, Institute of Integrative Biology, University of Liverpool, Liverpool L69 7ZB, UK
| | - Yong Li
- Department of Biochemistry, Institute of Integrative Biology, University of Liverpool, Liverpool L69 7ZB, UK
| | - David Mason
- Centre for Cell Imaging, Institute of Integrative Biology, University of Liverpool, Liverpool L69 7ZB, UK
| | - Raphaël Lévy
- Department of Biochemistry, Institute of Integrative Biology, University of Liverpool, Liverpool L69 7ZB, UK
| | - David G Fernig
- Department of Biochemistry, Institute of Integrative Biology, University of Liverpool, Liverpool L69 7ZB, UK
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Zhang X, Battig MR, Chen N, Gaddes ER, Duncan KL, Wang Y. Chimeric Aptamer-Gelatin Hydrogels as an Extracellular Matrix Mimic for Loading Cells and Growth Factors. Biomacromolecules 2016; 17:778-87. [PMID: 26791559 DOI: 10.1021/acs.biomac.5b01511] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
It is important to synthesize materials to recapitulate critical functions of biological systems for a variety of applications such as tissue engineering and regenerative medicine. The purpose of this study was to synthesize a chimeric hydrogel as a promising extracellular matrix (ECM) mimic using gelatin, a nucleic acid aptamer, and polyethylene glycol. This hydrogel had a macroporous structure that was highly permeable for fast molecular transport. Despite its high permeability, it could strongly sequester and sustainably release growth factors with high bioactivity. Notably, growth factors retained in the hydrogel could maintain ∼ 50% bioactivity during a 14-day release test. It also provided cells with effective binding sites, which led to high efficiency of cell loading into the macroporous hydrogel matrix. When cells and growth factors were coloaded into the chimeric hydrogel, living cells could still be observed by day 14 in a static serum-reduced culture condition. Thus, this chimeric aptamer-gelatin hydrogel constitutes a promising biomolecular ECM mimic for loading cells and growth factors.
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Affiliation(s)
- Xiaolong Zhang
- Department of Biomedical Engineering, College of Engineering, The Pennsylvania State University , University Park, Pennsylvania 16802, United States
| | - Mark R Battig
- Department of Biomedical Engineering, College of Engineering, The Pennsylvania State University , University Park, Pennsylvania 16802, United States
| | - Niancao Chen
- Department of Biomedical Engineering, College of Engineering, The Pennsylvania State University , University Park, Pennsylvania 16802, United States
| | - Erin R Gaddes
- Department of Biomedical Engineering, College of Engineering, The Pennsylvania State University , University Park, Pennsylvania 16802, United States
| | - Katelyn L Duncan
- Department of Biomedical Engineering, College of Engineering, The Pennsylvania State University , University Park, Pennsylvania 16802, United States
| | - Yong Wang
- Department of Biomedical Engineering, College of Engineering, The Pennsylvania State University , University Park, Pennsylvania 16802, United States
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Ripamonti U. Redefining the induction of periodontal tissue regeneration in primates by the osteogenic proteins of the transforming growth factor-β supergene family. J Periodontal Res 2016; 51:699-715. [PMID: 26833268 DOI: 10.1111/jre.12356] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/28/2015] [Indexed: 12/20/2022]
Abstract
The molecular bases of periodontal tissue induction and regeneration are the osteogenic proteins of the transforming growth factor-β (TGF-β) supergene family. These morphogens act as soluble mediators for the induction of tissues morphogenesis sculpting the multicellular mineralized structures of the periodontal tissues with functionally oriented ligament fibers into newly formed cementum. Human TGF-β3 (hTGF-β3 ) in growth factor-reduced Matrigel® matrix induces cementogenesis when implanted in class II mandibular furcation defects surgically prepared in the non-human primate Chacma baboon, Papio ursinus. The newly formed periodontal ligament space is characterized by running fibers tightly attached to the cementoid surface penetrating as mineralized constructs within the newly formed cementum assembling and initiating within the mineralized dentine. Angiogenesis heralds the newly formed periodontal ligament space, and newly sprouting capillaries are lined by cellular elements with condensed chromatin interpreted as angioblasts responsible for the rapid and sustained induction of angiogenesis. The inductive activity of hTGF-β3 in Matrigel® matrix is enhanced by the addition of autogenous morcellated fragments of the rectus abdominis muscle potentially providing myoblastic, pericytic/perivascular stem cells for continuous tissue induction and morphogenesis. The striated rectus abdominis muscle is endowed with stem cell niches in para/perivascular location, which can be dominant, thus imposing stem cell features or stemness to the surrounding cells. This capacity to impose stemness is morphologically shown by greater alveolar bone induction and cementogenesis when hTGF-β3 in Matrigel® matrix is combined with morcellated fragments of autogenous rectus abdominis muscle. The induction of periodontal tissue morphogenesis develops as a mosaic structure in which the osteogenic proteins of the TGF-β supergene family singly, synergistically and synchronously initiate and maintain tissue induction and morphogenesis. In primates, the presence of several homologous yet molecularly different isoforms with osteogenic activity highlights the biological significance of this apparent redundancy and indicates multiple interactions during embryonic development and bone regeneration in postnatal life. Molecular redundancy with associated different biological functionalities in primate tissues may simply represent the fine-tuning of speciation-related molecular evolution in anthropoid apes at the early Pliocene boundary, which resulted in finer tuning of the bone induction cascade.
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Affiliation(s)
- U Ripamonti
- Bone Research Laboratory, Department of Oral Medicine & Periodontology, School of Oral Health Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
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43
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Rosales AM, Anseth KS. The design of reversible hydrogels to capture extracellular matrix dynamics. NATURE REVIEWS. MATERIALS 2016; 1:15012. [PMID: 29214058 PMCID: PMC5714327 DOI: 10.1038/natrevmats.2015.12] [Citation(s) in RCA: 455] [Impact Index Per Article: 56.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
The extracellular matrix (ECM) is a dynamic environment that constantly provides physical and chemical cues to embedded cells. Much progress has been made in engineering hydrogels that can mimic the ECM, but hydrogel properties are, in general, static. To recapitulate the dynamic nature of the ECM, many reversible chemistries have been incorporated into hydrogels to regulate cell spreading, biochemical ligand presentation and matrix mechanics. For example, emerging trends include the use of molecular photoswitches or biomolecule hybridization to control polymer chain conformation, thereby enabling the modulation of the hydrogel between two states on demand. In addition, many non-covalent, dynamic chemical bonds have found increasing use as hydrogel crosslinkers or tethers for cell signalling molecules. These reversible chemistries will provide greater temporal control of adhered cell behaviour, and they allow for more advanced in vitro models and tissue-engineering scaffolds to direct cell fate.
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Affiliation(s)
- Adrianne M Rosales
- Department of Chemical and Biological Engineering, University of Colorado Boulder
| | - Kristi S Anseth
- Department of Chemical and Biological Engineering, University of Colorado Boulder
- Howard Hughes Medical Institute, University of Colorado Boulder, Boulder, Colorado 80303, USA
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Nunes QM, Li Y, Sun C, Kinnunen TK, Fernig DG. Fibroblast growth factors as tissue repair and regeneration therapeutics. PeerJ 2016; 4:e1535. [PMID: 26793421 PMCID: PMC4715458 DOI: 10.7717/peerj.1535] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Accepted: 12/05/2015] [Indexed: 12/25/2022] Open
Abstract
Cell communication is central to the integration of cell function required for the development and homeostasis of multicellular animals. Proteins are an important currency of cell communication, acting locally (auto-, juxta-, or paracrine) or systemically (endocrine). The fibroblast growth factor (FGF) family contributes to the regulation of virtually all aspects of development and organogenesis, and after birth to tissue maintenance, as well as particular aspects of organism physiology. In the West, oncology has been the focus of translation of FGF research, whereas in China and to an extent Japan a major focus has been to use FGFs in repair and regeneration settings. These differences have their roots in research history and aims. The Chinese drive into biotechnology and the delivery of engineered clinical grade FGFs by a major Chinese research group were important enablers in this respect. The Chinese language clinical literature is not widely accessible. To put this into context, we provide the essential molecular and functional background to the FGF communication system covering FGF ligands, the heparan sulfate and Klotho co-receptors and FGF receptor (FGFR) tyrosine kinases. We then summarise a selection of clinical reports that demonstrate the efficacy of engineered recombinant FGF ligands in treating a wide range of conditions that require tissue repair/regeneration. Alongside, the functional reasons why application of exogenous FGF ligands does not lead to cancers are described. Together, this highlights that the FGF ligands represent a major opportunity for clinical translation that has been largely overlooked in the West.
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Affiliation(s)
- Quentin M. Nunes
- Department of Molecular and Clinical Cancer Medicine, NIHR Liverpool Pancreas Biomedical Research Unit, University of Liverpool, Liverpool, United Kingdom
| | - Yong Li
- Department of Biochemistry, Institute of Integrative Biology, University of Liverpool, Liverpool, United Kingdom
| | - Changye Sun
- Department of Biochemistry, Institute of Integrative Biology, University of Liverpool, Liverpool, United Kingdom
| | - Tarja K. Kinnunen
- Department of Biology, School of Applied Sciences, University of Huddersfield, Huddersfield, United Kingdom
| | - David G. Fernig
- Department of Biochemistry, Institute of Integrative Biology, University of Liverpool, Liverpool, United Kingdom
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45
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Gomes AM, Sinkeviciute D, Multhaupt HAB, Yoneda A, Couchman JR. Syndecan Heparan Sulfate Proteoglycans: Regulation, Signaling and Impact on Tumor Biology. TRENDS GLYCOSCI GLYC 2016. [DOI: 10.4052/tigg.1422.1e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Angélica Maciel Gomes
- Department of Biomedical Sciences and Biotech Research & Innovation Center, University of Copenhagen
| | - Dovile Sinkeviciute
- Department of Biomedical Sciences and Biotech Research & Innovation Center, University of Copenhagen
| | - Hinke A. B. Multhaupt
- Department of Biomedical Sciences and Biotech Research & Innovation Center, University of Copenhagen
| | - Atsuko Yoneda
- Laboratory of Genome and Biosignals, Tokyo University of Pharmacy and Life Sciences
| | - John R. Couchman
- Department of Biomedical Sciences and Biotech Research & Innovation Center, University of Copenhagen
- Dept. Biomedical Sciences, University of Copenhagen, Biocenter
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46
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Smythe G. Role of Growth Factors in Modulation of the Microvasculature in Adult Skeletal Muscle. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2016; 900:161-83. [PMID: 27003400 DOI: 10.1007/978-3-319-27511-6_7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Post-natal skeletal muscle is a highly plastic tissue that has the capacity to regenerate rapidly following injury, and to undergo significant modification in tissue mass (i.e. atrophy/hypertrophy) in response to global metabolic changes. These processes are reliant largely on soluble factors that directly modulate muscle regeneration and mass. However, skeletal muscle function also depends on an adequate blood supply. Thus muscle regeneration and changes in muscle mass, particularly hypertrophy, also demand rapid changes in the microvasculature. Recent evidence clearly demonstrates a critical role for soluble growth factors in the tight regulation of angiogenic expansion of the muscle microvasculature. Furthermore, exogenous modulation of these factors has the capacity to impact directly on angiogenesis and thus, indirectly, on muscle regeneration, growth and performance. This chapter reviews recent developments in understanding the role of growth factors in modulating the skeletal muscle microvasculature, and the potential therapeutic applications of exogenous angiogenic and anti-angiogenic mediators in promoting effective growth and regeneration, and ameliorating certain diseases, of skeletal muscle.
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Affiliation(s)
- Gayle Smythe
- Faculty of Science, Charles Sturt University, Albury, NSW, 789, 2640, Australia.
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47
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Stein C, Castanotto D, Krishnan A, Nikolaenko L. Defibrotide (Defitelio): A New Addition to the Stockpile of Food and Drug Administration-approved Oligonucleotide Drugs. MOLECULAR THERAPY. NUCLEIC ACIDS 2016; 5:e346. [PMID: 28131276 PMCID: PMC5023395 DOI: 10.1038/mtna.2016.42] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/15/2016] [Accepted: 05/16/2016] [Indexed: 02/08/2023]
Affiliation(s)
- Cy Stein
- Department of Medical Oncology and Experimental Therapeutics, City of Hope, Duarte, California, USA; Department of Molecular and Cellular Biology, City of Hope, Duarte, California, USA.
| | - Daniela Castanotto
- Department of Medical Oncology and Experimental Therapeutics, City of Hope, Duarte, California, USA; Department of Molecular and Cellular Biology, City of Hope, Duarte, California, USA
| | - Amrita Krishnan
- Department of Hematologic Oncology, City of Hope, Duarte, California, USA
| | - Liana Nikolaenko
- Department of Hematologic Oncology, City of Hope, Duarte, California, USA
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48
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Gomes AM, Sinkeviciute D, Multhaupt HAB, Yoneda A, Couchman JR. Syndecan Heparan Sulfate Proteoglycans: Regulation, Signaling and Impact on Tumor Biology. TRENDS GLYCOSCI GLYC 2016. [DOI: 10.4052/tigg.1422.1j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Angélica Maciel Gomes
- Department of Biomedical Sciences and Biotech Research & Innovation Center, University of Copenhagen
| | - Dovile Sinkeviciute
- Department of Biomedical Sciences and Biotech Research & Innovation Center, University of Copenhagen
| | - Hinke A. B. Multhaupt
- Department of Biomedical Sciences and Biotech Research & Innovation Center, University of Copenhagen
| | - Atsuko Yoneda
- Laboratory of Genome and Biosignals, Tokyo University of Pharmacy and Life Sciences
| | - John R. Couchman
- Department of Biomedical Sciences and Biotech Research & Innovation Center, University of Copenhagen
- Dept. Biomedical Sciences, University of Copenhagen, Biocenter
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49
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Gomes AM, Bhat R, Correia AL, Mott JD, Ilan N, Vlodavsky I, Pavão MS, Bissell M. Mammary Branching Morphogenesis Requires Reciprocal Signaling by Heparanase and MMP-14. J Cell Biochem 2015; 116:1668-79. [DOI: 10.1002/jcb.25127] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Accepted: 02/06/2015] [Indexed: 01/11/2023]
Affiliation(s)
- Angélica Maciel Gomes
- Life Sciences Division; Lawrence Berkeley National Laboratory; Berkeley California 94720
- Programa de Glicobiologia; Instituto de Bioquímica Médica and Hospital Universitário Clementino Fraga Filho; Universidade Federal do Rio de Janeiro; Rio de Janeiro 21941-913 Brazil
| | - Ramray Bhat
- Life Sciences Division; Lawrence Berkeley National Laboratory; Berkeley California 94720
| | - Ana Luísa Correia
- Life Sciences Division; Lawrence Berkeley National Laboratory; Berkeley California 94720
| | - Joni D. Mott
- Life Sciences Division; Lawrence Berkeley National Laboratory; Berkeley California 94720
| | - Neta Ilan
- Cancer and Vascular Biology Research Center; Rappaport Faculty of Medicine; Technion 9649, 31096 Haifa Israel
| | - Israel Vlodavsky
- Cancer and Vascular Biology Research Center; Rappaport Faculty of Medicine; Technion 9649, 31096 Haifa Israel
| | - Mauro S.G. Pavão
- Programa de Glicobiologia; Instituto de Bioquímica Médica and Hospital Universitário Clementino Fraga Filho; Universidade Federal do Rio de Janeiro; Rio de Janeiro 21941-913 Brazil
| | - Mina Bissell
- Life Sciences Division; Lawrence Berkeley National Laboratory; Berkeley California 94720
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50
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Wu CY, Asano Y, Taniguchi T, Sato S, Yu HS. Serum heparanase levels: A protective marker against digital ulcers in patients with systemic sclerosis. J Dermatol 2015; 42:625-8. [PMID: 25808574 DOI: 10.1111/1346-8138.12842] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Accepted: 02/03/2015] [Indexed: 12/24/2022]
Abstract
Heparanase is an endo-β-D-glucuronidase cleaving heparan sulfate side-chains of heparin sulfate proteoglycans, which is involved in wound healing, inflammation, neovascularization and tumor progression through the degradation and remodeling of the extracellular matrix and the release of sequestered pro-angiogenic factors. Because heparanase-mediated biological processes seem to be involved in the development of systemic sclerosis (SSc), we investigated the clinical correlation of serum heparanase levels in patients with this disease. Serum heparanase levels were significantly higher in SSc patients than in healthy individuals, while comparable between diffuse cutaneous SSc and limited cutaneous SSc subgroups. On the other hand, SSc patients with digital ulcers had serum heparanase levels significantly lower than those without. These results suggest that serum heparanase levels may be elevated in SSc patients reflecting the contribution of heparanase-dependent biological processes to the development of SSc. SSc patients with high serum heparanase levels may be protected from the development of digital ulcers due to the increased release of sequestered pro-angiogenic factors such as vascular endothelial growth factor. Therefore, serum heparanase levels may serve as a protective marker against digital ulcers in SSc patients.
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Affiliation(s)
- Ching-Ying Wu
- Department of Dermatology, University of Tokyo Graduate School of Medicine, Tokyo, Japan.,Department of Dermatology, Kaohsiung Medical University, Kaohsiung, Taiwan.,College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yoshihide Asano
- Department of Dermatology, University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Takashi Taniguchi
- Department of Dermatology, University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Shinichi Sato
- Department of Dermatology, University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Hsin-Su Yu
- Department of Dermatology, Kaohsiung Medical University, Kaohsiung, Taiwan.,College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
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