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Abstract
It is recognized that a balance of different cytokines (synergistic versus antagonistic cytokines) determines the outcome in regulation of different actions such as inflammation, polarization, and secretion of macrophages, induction and secretion of T helper cells, and angiogenesis. It is also known that cytokine secretion is highly variable between individuals. These facts red flag the practice of only comparing absolute values of 1 or 2 cytokines in various studies. It is recognized that ratios of opposing functions yield better quantification of the equilibrium than just observing single values. It is the purpose of this article to (1) emphasize the need to measure a combination of cytokines selected in a manner so that ratios of these may be derived to yield more information about the homeostasis in body and (2) to offer a list of synergistic and antagonistic cytokines from which future investigators may select for more meaningful results.
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Affiliation(s)
- Prince Johnson Samuel
- Department of Physiology, Chettinad Academy of Research and Education, Chennai, India
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2
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Babrnáková J, Pavliňáková V, Brtníková J, Sedláček P, Prosecká E, Rampichová M, Filová E, Hearnden V, Vojtová L. Synergistic effect of bovine platelet lysate and various polysaccharides on the biological properties of collagen-based scaffolds for tissue engineering: Scaffold preparation, chemo-physical characterization, in vitro and ex ovo evaluation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 100:236-246. [PMID: 30948058 DOI: 10.1016/j.msec.2019.02.092] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Revised: 02/07/2019] [Accepted: 02/23/2019] [Indexed: 01/08/2023]
Abstract
Crosslinked 3D porous collagen-polysaccharide scaffolds, prepared by freeze-drying, were modified with bovine platelet lysate (BPL) and evaluated in terms of chemical, physical and biological properties. Natural antibacterial polysaccharides like chitosan, chitin/chitosan-glucan complex and calcium salt of oxidized cellulose (CaOC) incorporated in collagen scaffolds affected not only chemo-physical properties of the composite scaffolds but also improved their biological properties, especially when BPL was presented. Lipophilic BPL formed microspheres in porous scaffolds while reduced by half their swelling ratio. The resistance of collagen sponges to hydrolytic degradation in water depended strongly on chemical crosslinking varying from 60 min to more than one year. According to in-vitro tests, chemically crosslinked scaffolds exhibited a good cellular response, cell-matrix interactions, and biocompatibility of the material. The combination of collagen with natural polysaccharides confirmed a significant positive synergistic effect on cultivation of cells as determined by MTS assay and PicoGreen method, as well as on angiogenesis evaluated by ex ovo Chick Chorioallantoic Membrane (CAM) assay. Contrary, modification only by BLP of pure collagen scaffolds exhibited decreased biocompatibility in comparison to unmodified pure collagen scaffold. We propose that the newly developed crosslinked collagen sponges involving bioactive additives could be used as scaffold for growing cells in systems with low mechanical loading in tissue engineering, especially in dermis replacement, where neovascularization is a crucial parameter for successful skin regeneration.
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Affiliation(s)
- Johana Babrnáková
- CEITEC - Central European Institute of Technology, Brno University of Technology, Advanced Biomaterials, Purkynova 656/123, 612 00 Brno, Czech Republic.
| | - Veronika Pavliňáková
- CEITEC - Central European Institute of Technology, Brno University of Technology, Advanced Biomaterials, Purkynova 656/123, 612 00 Brno, Czech Republic
| | - Jana Brtníková
- CEITEC - Central European Institute of Technology, Brno University of Technology, Advanced Biomaterials, Purkynova 656/123, 612 00 Brno, Czech Republic
| | - Petr Sedláček
- Materials Research Centre, Faculty of Chemistry, Brno University of Technology, Purkynova 118, 612 00 Brno, Czech Republic
| | - Eva Prosecká
- Institute of Experimental Medicine of the Czech Academy of Sciences, Videnska 1083, 14220 Prague, Czech Republic
| | - Michala Rampichová
- Institute of Experimental Medicine of the Czech Academy of Sciences, Videnska 1083, 14220 Prague, Czech Republic
| | - Eva Filová
- Institute of Experimental Medicine of the Czech Academy of Sciences, Videnska 1083, 14220 Prague, Czech Republic
| | - Vanessa Hearnden
- Department of Materials Science and Engineering, Kroto Research Institute, North Campus, University of Sheffield, Broad Lane, Sheffield S3 7HQ, United Kingdom
| | - Lucy Vojtová
- CEITEC - Central European Institute of Technology, Brno University of Technology, Advanced Biomaterials, Purkynova 656/123, 612 00 Brno, Czech Republic
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Oliveira SM, Pirraco RP, Marques AP, Santo VE, Gomes ME, Reis RL, Mano JF. Platelet lysate-based pro-angiogenic nanocoatings. Acta Biomater 2016; 32:129-137. [PMID: 26708711 DOI: 10.1016/j.actbio.2015.12.028] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Revised: 12/10/2015] [Accepted: 12/15/2015] [Indexed: 12/20/2022]
Abstract
Human platelet lysate (PL) is a cost-effective and human source of autologous multiple and potent pro-angiogenic factors, such as vascular endothelial growth factor A (VEGF A), fibroblast growth factor b (FGF b) and angiopoietin-1. Nanocoatings previously characterized were prepared by layer-by-layer assembling incorporating PL with marine-origin polysaccharides and were shown to activate human umbilical vein endothelial cells (HUVECs). Within 20 h of incubation, the more sulfated coatings induced the HUVECS to the form tube-like structures accompanied by an increased expression of angiogenic-associated genes, such as angiopoietin-1 and VEGF A. This may be a cost-effective approach to modify 2D/3D constructs to instruct angiogenic cells towards the formation of neo-vascularization, driven by multiple and synergistic stimulations from the PL combined with sulfated polysaccharides. STATEMENT OF SIGNIFICANCE The presence, or fast induction, of a stable and mature vasculature inside 3D constructs is crucial for new tissue formation and its viability. This has been one of the major tissue engineering challenges, limiting the dimensions of efficient tissue constructs. Many approaches based on cells, growth factors, 3D bioprinting and channel incorporation have been proposed. Herein, we explored a versatile technique, layer-by-layer assembling in combination with platelet lysate (PL), that is a cost-effective source of many potent pro-angiogenic proteins and growth factors. Results suggest that the combination of PL with sulfated polyelectrolytes might be used to introduce interfaces onto 2D/3D constructs with potential to induce the formation of cell-based tubular structures.
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Affiliation(s)
- Sara M Oliveira
- 3B's Research Group - Biomaterials, Biodegradable and Biomimetics, Avepark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco - Guimarães, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães 4805-017, Portugal
| | - Rogério P Pirraco
- 3B's Research Group - Biomaterials, Biodegradable and Biomimetics, Avepark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco - Guimarães, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães 4805-017, Portugal
| | - Alexandra P Marques
- 3B's Research Group - Biomaterials, Biodegradable and Biomimetics, Avepark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco - Guimarães, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães 4805-017, Portugal
| | - Vítor E Santo
- 3B's Research Group - Biomaterials, Biodegradable and Biomimetics, Avepark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco - Guimarães, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães 4805-017, Portugal
| | - Manuela E Gomes
- 3B's Research Group - Biomaterials, Biodegradable and Biomimetics, Avepark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco - Guimarães, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães 4805-017, Portugal
| | - Rui L Reis
- 3B's Research Group - Biomaterials, Biodegradable and Biomimetics, Avepark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco - Guimarães, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães 4805-017, Portugal
| | - João F Mano
- 3B's Research Group - Biomaterials, Biodegradable and Biomimetics, Avepark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017 Barco - Guimarães, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães 4805-017, Portugal.
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El-Gendy R, Kirkham J, Newby PJ, Mohanram Y, Boccaccini AR, Yang XB. Investigating the Vascularization of Tissue-Engineered Bone Constructs Using Dental Pulp Cells and 45S5 Bioglass® Scaffolds. Tissue Eng Part A 2015; 21:2034-43. [PMID: 25923923 PMCID: PMC4507089 DOI: 10.1089/ten.tea.2014.0485] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Identification of a suitable cell source combined with an appropriate 3D scaffold is an essential prerequisite for successful engineering of skeletal tissues. Both osteogenesis and angiogenesis are key processes for bone regeneration. This study investigated the vascularization potential of a novel combination of human dental pulp stromal cells (HDPSCs) with 45S5 Bioglass® scaffolds for tissue-engineered mineral constructs in vivo and in vitro. 45S5 Bioglass scaffolds were produced by the foam replication technique with the standard composition of 45 wt% SiO2, 24.5 wt% Na2O, 24.5 wt% CaO, and 6 wt% P2O5. HDPSCs were cultured in monolayers and on porous 45S5 Bioglass scaffolds under angiogenic and osteogenic conditions for 2–4 weeks. HDPSCs expressed endothelial gene markers (CD34, CD31/PECAM1, and VEGFR2) under both conditions in the monolayer. A combination of HDPSCs with 45S5 Bioglass enhanced the expression of these gene markers. Positive immunostaining for CD31/PECAM1 and VEGFR2 and negative staining for CD34 supported the gene expression data, while histology revealed evidence of endothelial cell-like morphology within the constructs. More organized tubular structures, resembling microvessels, were seen in the constructs after 8 weeks of implantation in vivo. In conclusion, this study suggests that the combination of HDPSCs with 45S5 Bioglass scaffolds offers a promising strategy for regenerating vascularized bone grafts.
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Affiliation(s)
- Reem El-Gendy
- 1 Biomaterials and Tissue Engineering Group, Department of Oral Biology, University of Leeds, St. James's University Hospital , Leeds, United Kingdom .,2 Biomineralisation Group, Department of Oral Biology, University of Leeds, St. James's University Hospital , Leeds, United Kingdom .,3 Department of Oral Pathology, Faculty of Dentistry, Suez Canal University , Ismailia, Egypt
| | - Jennifer Kirkham
- 2 Biomineralisation Group, Department of Oral Biology, University of Leeds, St. James's University Hospital , Leeds, United Kingdom
| | - Phillipa J Newby
- 4 Department of Materials, Imperial College London , London, United Kingdom
| | - Yamuna Mohanram
- 1 Biomaterials and Tissue Engineering Group, Department of Oral Biology, University of Leeds, St. James's University Hospital , Leeds, United Kingdom
| | - Aldo Roberto Boccaccini
- 4 Department of Materials, Imperial College London , London, United Kingdom .,5 Institute of Biomaterials, University of Erlangen-Nuremberg , Erlangen, Germany
| | - Xuebin B Yang
- 1 Biomaterials and Tissue Engineering Group, Department of Oral Biology, University of Leeds, St. James's University Hospital , Leeds, United Kingdom
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Mammadov R, Mammadov B, Toksoz S, Aydin B, Yagci R, Tekinay AB, Guler MO. Heparin Mimetic Peptide Nanofibers Promote Angiogenesis. Biomacromolecules 2011; 12:3508-19. [DOI: 10.1021/bm200957s] [Citation(s) in RCA: 116] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Rashad Mammadov
- UNAM-Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800, Turkey
| | - Busra Mammadov
- UNAM-Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800, Turkey
| | - Sila Toksoz
- UNAM-Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800, Turkey
| | - Bahri Aydin
- Department of Ophthalmology, Medical School, Mersin University, Mersin 33343, Turkey
| | - Ramazan Yagci
- Department of Ophthalmology, Medical School, Fatih University, Ankara 06510, Turkey
| | - Ayse B. Tekinay
- UNAM-Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800, Turkey
| | - Mustafa O. Guler
- UNAM-Institute of Materials Science and Nanotechnology, Bilkent University, Ankara 06800, Turkey
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