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Nazerian Y, Nazerian A, Mohamadi-Jahani F, Sodeifi P, Jafarian M, Javadi SAH. Hydrogel-encapsulated extracellular vesicles for the regeneration of spinal cord injury. Front Neurosci 2023; 17:1309172. [PMID: 38156267 PMCID: PMC10752990 DOI: 10.3389/fnins.2023.1309172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Accepted: 11/28/2023] [Indexed: 12/30/2023] Open
Abstract
Spinal cord injury (SCI) is a critical neurological condition that may impair motor, sensory, and autonomous functions. At the cellular level, inflammation, impairment of axonal regeneration, and neuronal death are responsible for SCI-related complications. Regarding the high mortality and morbidity rates associated with SCI, there is a need for effective treatment. Despite advances in SCI repair, an optimal treatment for complete recovery after SCI has not been found so far. Therefore, an effective strategy is needed to promote neuronal regeneration and repair after SCI. In recent years, regenerative treatments have become a potential option for achieving improved functional recovery after SCI by promoting the growth of new neurons, protecting surviving neurons, and preventing additional damage to the spinal cord. Transplantation of cells and cells-derived extracellular vesicles (EVs) can be effective for SCI recovery. However, there are some limitations and challenges related to cell-based strategies. Ethical concerns and limited efficacy due to the low survival rate, immune rejection, and tumor formation are limitations of cell-based therapies. Using EVs is a helpful strategy to overcome these limitations. It should be considered that short half-life, poor accumulation, rapid clearance, and difficulty in targeting specific tissues are limitations of EVs-based therapies. Hydrogel-encapsulated exosomes have overcome these limitations by enhancing the efficacy of exosomes through maintaining their bioactivity, protecting EVs from rapid clearance, and facilitating the sustained release of EVs at the target site. These hydrogel-encapsulated EVs can promote neuroregeneration through improving functional recovery, reducing inflammation, and enhancing neuronal regeneration after SCI. This review aims to provide an overview of the current research status, challenges, and future clinical opportunities of hydrogel-encapsulated EVs in the treatment of SCI.
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Affiliation(s)
- Yasaman Nazerian
- Brain and Spinal Cord Injury Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Fereshteh Mohamadi-Jahani
- Brain and Spinal Cord Injury Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Parastoo Sodeifi
- School of Medicine, Islamic Azad University of Medical Sciences, Tehran, Iran
| | - Maryam Jafarian
- Brain and Spinal Cord Injury Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed Amir Hossein Javadi
- Brain and Spinal Cord Injury Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
- Department of Neurosurgery, Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
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Berounský K, Vacková I, Vištejnová L, Malečková A, Havránková J, Klein P, Kolinko Y, Petrenko Y, Pražák Š, Hanák F, Přidal J, Havlas V. Autologous Mesenchymal Stromal Cells Immobilized in Plasma-Based Hydrogel for the Repair of Articular Cartilage Defects in a Large Animal Model. Physiol Res 2023; 72:485-495. [PMID: 37795891 PMCID: PMC10634567 DOI: 10.33549/physiolres.935098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 05/02/2023] [Indexed: 01/05/2024] Open
Abstract
The treatment of cartilage defects in trauma injuries and degenerative diseases represents a challenge for orthopedists. Advanced mesenchymal stromal cell (MSC)-based therapies are currently of interest for the repair of damaged cartilage. However, an approved system for MSC delivery and maintenance in the defect is still missing. This study aimed to evaluate the effect of autologous porcine bone marrow MSCs anchored in a commercially available polyglycolic acid-hyaluronan scaffold (Chondrotissue®) using autologous blood plasma-based hydrogel in the repair of osteochondral defects in a large animal model. The osteochondral defects were induced in twenty-four minipigs with terminated skeletal growth. Eight animals were left untreated, eight were treated with Chondrotissue® and eight received Chondrotissue® loaded with MSCs. The animals were terminated 90 days after surgery. Macroscopically, the untreated defects were filled with newly formed tissue to a greater extent than in the other groups. The histological evaluations showed that the defects treated with Chondrotissue® and Chondrotissue® loaded with pBMSCs contained a higher amount of hyaline cartilage and a lower amount of connective tissue, while untreated defects contained a higher amount of connective tissue and a lower amount of hyaline cartilage. In addition, undifferentiated connective tissue was observed at the edges of defects receiving Chondrotissue® loaded with MSCs, which may indicate the extracellular matrix production by transplanted MSCs. The immunological analysis of the blood samples revealed no immune response activation by MSCs application. This study demonstrated the successful and safe immobilization of MSCs in commercially available scaffolds and defect sites for cartilage defect repair.
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Affiliation(s)
- K Berounský
- Motol University Hospital, Prague, Czech Republic.
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Táborská J, Blanquer A, Brynda E, Filová E, Stiborová L, Jenčová V, Havlíčková K, Riedelová Z, Riedel T. PLCL/PCL Dressings with Platelet Lysate and Growth Factors Embedded in Fibrin for Chronic Wound Regeneration. Int J Nanomedicine 2023; 18:595-610. [PMID: 36760757 PMCID: PMC9904224 DOI: 10.2147/ijn.s393890] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 01/17/2023] [Indexed: 02/05/2023] Open
Abstract
Introduction The formation of diabetic ulcers (DU) is a common complication for diabetic patients resulting in serious chronic wounds. There is therefore, an urgent need for complex treatment of this problem. This study examines a bioactive wound dressing of a biodegradable electrospun nanofibrous blend of poly(L-lactide-co-ε-caprolactone) and poly(ε-caprolactone) (PLCL/PCL) covered by a thin fibrin layer for sustained delivery of bioactive molecules. Methods Electrospun PLCL/PCL nanofibers were coated with fibrin-based coating prepared by a controlled technique and enriched with human platelet lysate (hPL), fibroblast growth factor 2 (FGF), and vascular endothelial growth factor (VEGF). The coating was characterized by scanning electron microscopy and fluorescent microscopy. Protein content and its release rate and the effect on human saphenous vein endothelial cells (HSVEC) were evaluated. Results The highest protein amount is achieved by the coating of PLCL/PCL with a fibrin mesh containing 20% v/v hPL (NF20). The fibrin coating serves as an excellent scaffold to accumulate bioactive molecules from hPL such as PDGF-BB, fibronectin (Fn), and α-2 antiplasmin. The NF20 coating shows both fast and a sustained release of the attached bioactive molecules (Fn, VEGF, FGF). The dressing significantly increases the viability of human saphenous vein endothelial cells (HSVECs) cultivated on a collagen-based wound model. The exogenous addition of FGF and VEGF during the coating procedure further increases the HSVECs viability. In addition, the presence of α-2 antiplasmin significantly stabilizes the fibrin mesh and prevents its cleavage by plasmin. Discussion The NF20 coating supplemented with FGF and VEGF provides a promising wound dressing for the complex treatment of DU. The incorporation of various bioactive molecules from hPL and growth factors has great potential to support the healing processes by providing appropriate stimuli in the chronic wound.
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Affiliation(s)
- Johanka Táborská
- Department of Chemistry and Physics of Surfaces and Biointerfaces, Institute of Macromolecular Chemistry, Czech Academy of Sciences, Prague, Czech Republic
| | - Andreu Blanquer
- Department of Biomaterials and Tissue Engineering, Institute of Physiology, Czech Academy of Sciences, Prague, Czech Republic,Departament de Biologia Cellular, Fisiologia i Immunologia, Universitat Autonoma de Barcelona, Bellaterra, Spain
| | - Eduard Brynda
- Department of Chemistry and Physics of Surfaces and Biointerfaces, Institute of Macromolecular Chemistry, Czech Academy of Sciences, Prague, Czech Republic
| | - Elena Filová
- Department of Biomaterials and Tissue Engineering, Institute of Physiology, Czech Academy of Sciences, Prague, Czech Republic
| | - Lenka Stiborová
- Department of Chemistry and Physics of Surfaces and Biointerfaces, Institute of Macromolecular Chemistry, Czech Academy of Sciences, Prague, Czech Republic
| | - Věra Jenčová
- Department of Chemistry, Technical University of Liberec, Liberec, Czech Republic
| | - Kristýna Havlíčková
- Department of Chemistry, Technical University of Liberec, Liberec, Czech Republic
| | - Zuzana Riedelová
- Department of Chemistry and Physics of Surfaces and Biointerfaces, Institute of Macromolecular Chemistry, Czech Academy of Sciences, Prague, Czech Republic
| | - Tomáš Riedel
- Department of Chemistry and Physics of Surfaces and Biointerfaces, Institute of Macromolecular Chemistry, Czech Academy of Sciences, Prague, Czech Republic,Correspondence: Tomáš Riedel, Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovskeho namesti 2, 162 00 Prague 6, Czech Republic, Tel +420 296 809 333, Email
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Filova E, Steinerova M, Travnickova M, Knitlova J, Musilkova J, Eckhardt A, Hadraba D, Matejka R, Prazak S, Stepanovska J, Kucerova J, Riedel T, Brynda E, Lodererova A, Honsova E, Pirk J, Konarik M, Bacakova L. Accelerated in vitro recellularization of decellularized porcine pericardium for cardiovascular grafts. Biomed Mater 2021; 16:025024. [PMID: 33629665 DOI: 10.1088/1748-605x/abbdbd] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
An ideal decellularized allogenic or xenogeneic cardiovascular graft should be capable of preventing thrombus formation after implantation. The antithrombogenicity of the graft is ensured by a confluent endothelial cell layer formed on its surface. Later repopulation and remodeling of the scaffold by the patient's cells should result in the formation of living autologous tissue. In the work presented here, decellularized porcine pericardium scaffolds were modified by growing a fibrin mesh on the surface and inside the scaffolds, and by attaching heparin and human vascular endothelial growth factor (VEGF) to this mesh. Then the scaffolds were seeded with human adipose tissue-derived stem cells (ASCs). While the ASCs grew only on the surface of the decellularized pericardium, the fibrin-modified scaffolds were entirely repopulated in 28 d, and the scaffolds modified with fibrin, heparin and VEGF were already repopulated within 6 d. Label free mass spectrometry revealed fibronectin, collagens, and other extracellular matrix proteins produced by ASCs during recellularization. Thin layers of human umbilical endothelial cells were formed within 4 d after the cells were seeded on the surfaces of the scaffold, which had previously been seeded with ASCs. The results indicate that an artificial tissue prepared by in vitro recellularization and remodeling of decellularized non-autologous pericardium with autologous ASCs seems to be a promising candidate for cardiovascular grafts capable of accelerating in situ endothelialization. ASCs resemble the valve interstitial cells present in heart valves. An advantage of this approach is that ASCs can easily be collected from the patient by liposuction.
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Affiliation(s)
- Elena Filova
- Laboratory of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague, Czech Republic
| | - Marie Steinerova
- Laboratory of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague, Czech Republic
| | - Martina Travnickova
- Laboratory of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague, Czech Republic
| | - Jarmila Knitlova
- Laboratory of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague, Czech Republic
| | - Jana Musilkova
- Laboratory of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague, Czech Republic
| | - Adam Eckhardt
- Laboratory of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague, Czech Republic
| | - Daniel Hadraba
- Laboratory of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague, Czech Republic
| | - Roman Matejka
- Laboratory of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague, Czech Republic
- Department of Biomedical Technology, Faculty of Biomedical Engineering, Czech Technical University in Prague, Sitna sq. 3105, 27201 Kladno, Czech Republic
| | - Simon Prazak
- Laboratory of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague, Czech Republic
- Department of Biomedical Technology, Faculty of Biomedical Engineering, Czech Technical University in Prague, Sitna sq. 3105, 27201 Kladno, Czech Republic
| | - Jana Stepanovska
- Laboratory of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague, Czech Republic
- Department of Biomedical Technology, Faculty of Biomedical Engineering, Czech Technical University in Prague, Sitna sq. 3105, 27201 Kladno, Czech Republic
| | - Johanka Kucerova
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences, Heyrovskeho sq. 1888, 162 00 Prague, Czech Republic
| | - Tomáš Riedel
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences, Heyrovskeho sq. 1888, 162 00 Prague, Czech Republic
| | - Eduard Brynda
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences, Heyrovskeho sq. 1888, 162 00 Prague, Czech Republic
| | - Alena Lodererova
- Institute for Clinical and Experimental Medicine, Videnská 1958/9, 140 21 Prague, Czech Republic
| | - Eva Honsova
- Institute for Clinical and Experimental Medicine, Videnská 1958/9, 140 21 Prague, Czech Republic
| | - Jan Pirk
- Institute for Clinical and Experimental Medicine, Videnská 1958/9, 140 21 Prague, Czech Republic
| | - Miroslav Konarik
- Institute for Clinical and Experimental Medicine, Videnská 1958/9, 140 21 Prague, Czech Republic
| | - Lucie Bacakova
- Laboratory of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague, Czech Republic
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Blanquer A, Musilkova J, Filova E, Taborska J, Brynda E, Riedel T, Klapstova A, Jencova V, Mullerova J, Kostakova EK, Prochazkova R, Bacakova L. The Effect of a Polyester Nanofibrous Membrane with a Fibrin-Platelet Lysate Coating on Keratinocytes and Endothelial Cells in a Co-Culture System. NANOMATERIALS 2021; 11:nano11020457. [PMID: 33670150 PMCID: PMC7916860 DOI: 10.3390/nano11020457] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 02/02/2021] [Accepted: 02/08/2021] [Indexed: 01/18/2023]
Abstract
Chronic wounds affect millions of patients worldwide, and it is estimated that this number will increase steadily in the future due to population ageing. The research of new therapeutic approaches to wound healing includes the development of nanofibrous meshes and the use of platelet lysate (PL) to stimulate skin regeneration. This study considers a combination of a degradable electrospun nanofibrous blend of poly(L-lactide-co-ε-caprolactone) and poly(ε-caprolactone) (PLCL/PCL) membranes (NF) and fibrin loaded with various concentrations of PL aimed at the development of bioactive skin wound healing dressings. The cytocompatibility of the NF membranes, as well as the effect of PL, was evaluated in both monocultures and co-cultures of human keratinocytes and human endothelial cells. We determined that the keratinocytes were able to adhere on all the membranes, and their increased proliferation and differentiation was observed on the membranes that contained fibrin with at least 50% of PL (Fbg + PL) after 14 days. With respect to the co-culture experiments, the membranes with fibrin with 20% of PL were observed to enhance the metabolic activity of endothelial cells and their migration, and the proliferation and differentiation of keratinocytes. The results suggest that the newly developed NF combined with fibrin and PL, described in the study, provides a promising dressing for chronic wound healing purposes.
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Affiliation(s)
- Andreu Blanquer
- Institute of Physiology of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague 4, Czech Republic; (J.M.); (E.F.); (L.B.)
- Correspondence: ; Tel.: +420-29-644-3741
| | - Jana Musilkova
- Institute of Physiology of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague 4, Czech Republic; (J.M.); (E.F.); (L.B.)
| | - Elena Filova
- Institute of Physiology of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague 4, Czech Republic; (J.M.); (E.F.); (L.B.)
| | - Johanka Taborska
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences, Heyrovskeho nam. 2, 162 06 Prague 6, Czech Republic; (J.T.); (E.B.); (T.R.)
| | - Eduard Brynda
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences, Heyrovskeho nam. 2, 162 06 Prague 6, Czech Republic; (J.T.); (E.B.); (T.R.)
| | - Tomas Riedel
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences, Heyrovskeho nam. 2, 162 06 Prague 6, Czech Republic; (J.T.); (E.B.); (T.R.)
| | - Andrea Klapstova
- Faculty of Textile Engineering, Technical University of Liberec, Studentska 1402/2, 461 17 Liberec 1, Czech Republic;
| | - Vera Jencova
- Faculty of Science, Humanities and Education, Technical University of Liberec, Studentska 1402/2, 461 17 Liberec 1, Czech Republic; (V.J.); (J.M.); (E.K.K.)
| | - Jana Mullerova
- Faculty of Science, Humanities and Education, Technical University of Liberec, Studentska 1402/2, 461 17 Liberec 1, Czech Republic; (V.J.); (J.M.); (E.K.K.)
- Institute of Nanomaterials, Advanced Technologies and Innovation, Bendlova 1409/7, 460 01 Liberec 1, Czech Republic
| | - Eva Kuzelova Kostakova
- Faculty of Science, Humanities and Education, Technical University of Liberec, Studentska 1402/2, 461 17 Liberec 1, Czech Republic; (V.J.); (J.M.); (E.K.K.)
| | - Renata Prochazkova
- Faculty of Health, Technical University of Liberec, Studentska 1402/2, 461 17 Liberec 1, Czech Republic;
- Regional Hospital Liberec, Husova 357/28, 460 01 Liberec 1, Czech Republic
| | - Lucie Bacakova
- Institute of Physiology of the Czech Academy of Sciences, Videnska 1083, 142 20 Prague 4, Czech Republic; (J.M.); (E.F.); (L.B.)
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Táborská J, Riedelová Z, Brynda E, Májek P, Riedel T. Endothelialization of an ePTFE vessel prosthesis modified with an antithrombogenic fibrin/heparin coating enriched with bound growth factors. RSC Adv 2021; 11:5903-5913. [PMID: 35423133 PMCID: PMC8694727 DOI: 10.1039/d1ra00053e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 01/27/2021] [Indexed: 01/31/2023] Open
Abstract
Early and late thrombosis remain the most frequent reasons for the failure of synthetic cardiovascular grafts. Long-term hemocompatibility of implanted synthetic grafts can be achieved if a natural living endothelium is formed over its blood-contacting surface. Here we present a modification of a standard expanded polytetrafluorethylene (ePTFE) vessel prosthesis by a controlled preparation of a fibrin mesh enriched with covalently bound heparin and noncovalently bound vascular endothelial growth factor (VEGF) and fibroblast growth factor (FGF). Compared to a bare prosthesis, the coated prosthesis showed excellent antithrombogenic properties after contact with heparinized fresh human blood. Human umbilical vein endothelial cells seeded on the inner surface of the coated prosthesis formed a confluent layer in 5 days, whereas only small colonies of cells were scattered on the bare prosthesis. Viability of the cells was promoted mainly by FGF immobilized on the coating. These findings suggest that the coating may prevent acute thrombus formation and support the self-endothelialization of an implanted ePTFE vascular graft in vivo.
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Affiliation(s)
- Johanka Táborská
- Institute of Macromolecular Chemistry, Czech Academy of Sciences Heyrovského Náměstí 2 162 06 Prague 6 Czech Republic
| | - Zuzana Riedelová
- Institute of Macromolecular Chemistry, Czech Academy of Sciences Heyrovského Náměstí 2 162 06 Prague 6 Czech Republic
| | - Eduard Brynda
- Institute of Macromolecular Chemistry, Czech Academy of Sciences Heyrovského Náměstí 2 162 06 Prague 6 Czech Republic
| | - Pavel Májek
- Institute of Hematology and Blood Transfusion U Nemocnice 1 128 00 Prague 2 Czech Republic
| | - Tomáš Riedel
- Institute of Macromolecular Chemistry, Czech Academy of Sciences Heyrovského Náměstí 2 162 06 Prague 6 Czech Republic
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Haugen HJ, Basu P, Sukul M, Mano JF, Reseland JE. Injectable Biomaterials for Dental Tissue Regeneration. Int J Mol Sci 2020; 21:E3442. [PMID: 32414077 PMCID: PMC7279163 DOI: 10.3390/ijms21103442] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Accepted: 05/08/2020] [Indexed: 12/17/2022] Open
Abstract
Injectable biomaterials scaffolds play a pivotal role for dental tissue regeneration, as such materials are highly applicable in the dental field, particularly when compared to pre-formed scaffolds. The defects in the maxilla-oral area are normally small, confined and sometimes hard to access. This narrative review describes different types of biomaterials for dental tissue regeneration, and also discusses the potential use of nanofibers for dental tissues. Various studies suggest that tissue engineering approaches involving the use of injectable biomaterials have the potential of restoring not only dental tissue function but also their biological purposes.
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Affiliation(s)
- Håvard Jostein Haugen
- Department of Biomaterials, Institute of Clinical Dentistry, Faculty of Odontology, University of Oslo, 0317 Oslo, Norway; (P.B.); (M.S.); (J.E.R.)
| | - Poulami Basu
- Department of Biomaterials, Institute of Clinical Dentistry, Faculty of Odontology, University of Oslo, 0317 Oslo, Norway; (P.B.); (M.S.); (J.E.R.)
| | - Mousumi Sukul
- Department of Biomaterials, Institute of Clinical Dentistry, Faculty of Odontology, University of Oslo, 0317 Oslo, Norway; (P.B.); (M.S.); (J.E.R.)
| | - João F Mano
- CICECO – Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal;
| | - Janne Elin Reseland
- Department of Biomaterials, Institute of Clinical Dentistry, Faculty of Odontology, University of Oslo, 0317 Oslo, Norway; (P.B.); (M.S.); (J.E.R.)
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Musilkova J, Filova E, Pala J, Matejka R, Hadraba D, Vondrasek D, Kaplan O, Riedel T, Brynda E, Kucerova J, Konarik M, Lopot F, Jan Pirk, Bacakova L. Human decellularized and crosslinked pericardium coated with bioactive molecular assemblies. ACTA ACUST UNITED AC 2019; 15:015008. [PMID: 31665713 DOI: 10.1088/1748-605x/ab52db] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Decellularized human pericardium is under study as an allogenic material for cardiovascular applications. The effects of crosslinking on the mechanical properties of decellularized pericardium were determined with a uniaxial tensile test, and the effects of crosslinking on the collagen structure of decellularized pericardium were determined by multiphoton microscopy. The viability of human umbilical vein endothelial cells seeded on decellularized human pericardium and on pericardium strongly and weakly crosslinked with glutaraldehyde and with genipin was evaluated by means of an MTS assay. The viability of the cells, measured by their metabolic activity, decreased considerably when the pericardium was crosslinked with glutaraldehyde. Conversely, the cell viability increased when the pericardium was crosslinked with genipin. Coating both non-modified pericardium and crosslinked pericardium with a fibrin mesh or with a mesh containing attached heparin and/or fibronectin led to a significant increase in cell viability. The highest degree of viability was attained for samples that were weakly crosslinked with genipin and modified by means of a fibrin and fibronectin coating. The results indicate a method by which in vivo endothelialization of human cardiac allografts or xenografts could potentially be encouraged.
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Affiliation(s)
- Jana Musilkova
- Department of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, Prague, Czech Republic
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Fibrin-Modified Cellulose as a Promising Dressing for Accelerated Wound Healing. MATERIALS 2018; 11:ma11112314. [PMID: 30453657 PMCID: PMC6266344 DOI: 10.3390/ma11112314] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 11/12/2018] [Accepted: 11/14/2018] [Indexed: 02/07/2023]
Abstract
Dermal injuries and chronic wounds usually regenerate with scar formation. Successful treatment without scarring might be achieved by pre-seeding a wound dressing with cells. We aimed to prepare a wound dressing fabricated from sodium carboxymethylcellulose (Hcel® NaT), combined with fibrin and seeded with dermal fibroblasts in vitro. We fabricated the Hcel® NaT in a porous and homogeneous form (P form and H form, respectively) differing in structural morphology and in the degree of substitution of hydroxyl groups. Each form of Hcel® NaT was functionalized with two morphologically different fibrin structures to improve cell adhesion and proliferation, estimated by an MTS assay. Fibrin functionalization of the Hcel® NaT strongly enhanced colonization of the material with human dermal fibroblasts. Moreover, the type of fibrin structures influenced the ability of the cells to adhere to the material and proliferate on it. The fibrin mesh filling the void spaces between cellulose fibers better supported cell attachment and subsequent proliferation than the fibrin coating, which only enwrapped individual cellulose fibers. On the fibrin mesh, the cell proliferation activity on day 3 was higher on the H form than on the P form of Hcel® NaT, while on the fibrin coating, the cell proliferation on day 7 was higher on the P form. The Hcel® NaT wound dressing functionalized with fibrin, especially when in the form of a mesh, can accelerate wound healing by supporting fibroblast adhesion and proliferation.
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RIEDELOVÁ Z, MÁJEK P, PEČÁNKOVÁ K, KUČEROVÁ J, SURMAN F, DE LOS SANTOS PEREIRA A, RIEDEL T. SPR Biosensor for Quantification of Fetuin-A as a Promising Multibiomarker. Physiol Res 2018; 67:S367-S375. [DOI: 10.33549/physiolres.933982] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Early diagnosis of ongoing malignant disease is crucial to improve survival rate and life quality of the patients and requires sensitive detection of specific biomarkers e.g. prostate-specific antigen (PSA), carcinoembryonic antigen (CEA), alpha-fetoprotein (AFP), etc. In spite of current technological advances, malignant diseases are still identified in rather late stages, which have detrimental effect on the prognosis and treatment of the disease. Here, we present a biosensor able to detect fetuin-A, a potential multibiomarker. The biosensing platform is based on polymer brush combining antifouling monomer units of N-(2-hydroxypropyl)methacrylamide (HPMA) and carboxybetaine methacrylamide (CBMAA), statistically copolymerized by surface-initiated atom transfer radical polymerization. The copolymer poly(HPMA-co-CBMAA) exhibits excellent non-fouling properties in the most relevant biological media (i.e. blood plasma) as well as antithrombogenic surface properties by preventing the adhesion of blood components (i.e. leukocytes; platelets; and erythrocytes). Moreover, the polymer brush can be easily functionalized with biorecognition elements maintaining high resistance to blood fouling and the binding capacity can be regulated by tuning the ratio between CBMAA and HPMA units. The superior antifouling properties of the copolymer even after biofunctionalization were exploited to fabricate a new plasmonic biosensor for the analysis of fetuin-A in real clinical blood plasma samples. The assay used in this work can be explored as label-free affinity biosensor for diagnostics of different biomarkers in real clinical plasma samples and to shift the early biomarker detection toward novel biosensor technologies allowing point of care analysis.
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Affiliation(s)
| | | | | | | | | | | | - T. RIEDEL
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences, Prague, Czech Republic
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Kaplan O, Hierlemann T, Krajewski S, Kurz J, Nevoralová M, Houska M, Riedel T, Riedelová Z, Zárubová J, Wendel HP, Brynda E. Low-thrombogenic fibrin-heparin coating promotes in vitro endothelialization. J Biomed Mater Res A 2017. [PMID: 28646555 DOI: 10.1002/jbm.a.36152] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Long-term performance of implanted cardiovascular grafts can be ensured if living endothelium overgrows their surface. Surface modifications to implants are therefore being sought that can encourage endothelialization while preventing thrombus formation until the natural endothelium is formed. In the present study, heparin was covalently attached to a fibrin mesh grown from a polyvinyl chloride (PVC) substrate surface by the catalytic action of surface immobilized thrombin on a fibrinogen solution. The coating prevented platelet activation, thrombin generation and clot formation, and reduced inflammatory reactions when exposed to fresh human whole blood circulating in a Chandler loop model. In addition, in vitro seeded human umbilical vein and human saphenous vein endothelial cells showed considerably enhanced attachment and proliferation on the coating. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 105A: 2995-3005, 2017.
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Affiliation(s)
- Ondřej Kaplan
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences, Prague, CZ-162 06, Czech Republic
| | - Teresa Hierlemann
- Department of Thoracic, Cardiac and Vascular Surgery, Clinical Research Laboratory, University Hospital Tuebingen, Tuebingen, DE-72076, Germany
| | - Stefanie Krajewski
- Department of Thoracic, Cardiac and Vascular Surgery, Clinical Research Laboratory, University Hospital Tuebingen, Tuebingen, DE-72076, Germany
| | - Julia Kurz
- Department of Thoracic, Cardiac and Vascular Surgery, Clinical Research Laboratory, University Hospital Tuebingen, Tuebingen, DE-72076, Germany
| | - Martina Nevoralová
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences, Prague, CZ-162 06, Czech Republic
| | - Milan Houska
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences, Prague, CZ-162 06, Czech Republic
| | - Tomáš Riedel
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences, Prague, CZ-162 06, Czech Republic
| | - Zuzana Riedelová
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences, Prague, CZ-162 06, Czech Republic
| | - Jana Zárubová
- Institute of Physiology of the Czech Academy of Sciences, Prague, CZ-142 20, Czech Republic
| | - Hans P Wendel
- Department of Thoracic, Cardiac and Vascular Surgery, Clinical Research Laboratory, University Hospital Tuebingen, Tuebingen, DE-72076, Germany
| | - Eduard Brynda
- Institute of Macromolecular Chemistry of the Czech Academy of Sciences, Prague, CZ-162 06, Czech Republic
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