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Blanquer A, Kostakova EK, Filova E, Lisnenko M, Broz A, Mullerova J, Novotny V, Havlickova K, Jakubkova S, Hauzerova S, Heczkova B, Prochazkova R, Bacakova L, Jencova V. A novel bifunctional multilayered nanofibrous membrane combining polycaprolactone and poly (vinyl alcohol) enriched with platelet lysate for skin wound healing. NANOSCALE 2024; 16:1924-1941. [PMID: 38170860 DOI: 10.1039/d3nr04705a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
Skin wound healing is a complex physiological process that involves various cell types, growth factors, cytokines, and other bioactive compounds. In this study, a novel dual-function multilayered nanofibrous membrane is developed for chronic wound application. The membrane is composed of five alternating layers of polycaprolactone (PCL) and poly (vinyl alcohol) (PVA) nanofibers (PCL-PVA) with a dual function: the PCL nanofibrous layers allow cell adhesion and growth, and the PVA layers enriched with incorporated platelet lysate (PCL-PVA + PL) serve as a drug delivery system for continuous release of bioactive compounds from PL into an aqueous environment. The material is produced using a needleless multi-jet electrospinning approach which can lead to homogeneous large-scale production. The bioactive PCL-PVA + PL membranes are cytocompatible and hemocompatible. A spatially compartmented co-culture of three cell types involved in wound healing - keratinocytes, fibroblasts and endothelial cells - is used for cytocompatibility studies. PCL-PVA + PL membranes enhance the proliferation of all cell types and increase the migration of both fibroblasts and endothelial cells. The membranes are also hemocompatible without any deleterious effect for thrombogenicity, hemolysis and coagulation. Thus, the beneficial effect of the PCL-PVA + PL membrane is demonstrated in vitro, making it a promising scaffold for the treatment of chronic wounds.
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Affiliation(s)
- Andreu Blanquer
- Departament de Biologia Cel·lular, Fisiologia i Immunologia, Universitat Autònoma de Barcelona, Bellaterra, Cerdanyola del Vallès, 08193, Spain.
- Institute of Physiology of the Czech Academy of Sciences, Videnska 1083, 142 00 Prague 4-Krc, Czech Republic
| | - Eva Kuzelova Kostakova
- Technical University of Liberec, Faculty of Science, Humanities and Education, Studentska 1402/2, Liberec, 46117, Czech Republic
| | - Elena Filova
- Institute of Physiology of the Czech Academy of Sciences, Videnska 1083, 142 00 Prague 4-Krc, Czech Republic
| | - Maxim Lisnenko
- Technical University of Liberec, Faculty of Science, Humanities and Education, Studentska 1402/2, Liberec, 46117, Czech Republic
| | - Antonin Broz
- Institute of Physiology of the Czech Academy of Sciences, Videnska 1083, 142 00 Prague 4-Krc, Czech Republic
| | - Jana Mullerova
- Technical University of Liberec, Faculty of Science, Humanities and Education, Studentska 1402/2, Liberec, 46117, Czech Republic
- The Institute for Nanomaterials, Advanced Technologies and Innovation, Bendlova 1409/7, Liberec, 460 01, Czech Republic
| | - Vit Novotny
- The Institute for Nanomaterials, Advanced Technologies and Innovation, Bendlova 1409/7, Liberec, 460 01, Czech Republic
| | - Kristyna Havlickova
- Technical University of Liberec, Faculty of Science, Humanities and Education, Studentska 1402/2, Liberec, 46117, Czech Republic
| | - Sarka Jakubkova
- Regional Hospital Liberec, Husova 357/28, Liberec, 460 01, Czech Republic
| | - Sarka Hauzerova
- Technical University of Liberec, Faculty of Science, Humanities and Education, Studentska 1402/2, Liberec, 46117, Czech Republic
| | - Bohdana Heczkova
- Regional Hospital Liberec, Husova 357/28, Liberec, 460 01, Czech Republic
| | - Renata Prochazkova
- Regional Hospital Liberec, Husova 357/28, Liberec, 460 01, Czech Republic
- Faculty of Health, Technical University of Liberec, Studentska 1402/2, Liberec, 461 17, Czech Republic
| | - Lucie Bacakova
- Institute of Physiology of the Czech Academy of Sciences, Videnska 1083, 142 00 Prague 4-Krc, Czech Republic
| | - Vera Jencova
- Technical University of Liberec, Faculty of Science, Humanities and Education, Studentska 1402/2, Liberec, 46117, Czech Republic
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Adipose-Derived Stem Cells in Reinforced Collagen Gel: A Comparison between Two Approaches to Differentiation towards Smooth Muscle Cells. Int J Mol Sci 2023; 24:ijms24065692. [PMID: 36982766 PMCID: PMC10058441 DOI: 10.3390/ijms24065692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 03/09/2023] [Accepted: 03/11/2023] [Indexed: 03/19/2023] Open
Abstract
Scaffolds made of degradable polymers, such as collagen, polyesters or polysaccharides, are promising matrices for fabrication of bioartificial vascular grafts or patches. In this study, collagen isolated from porcine skin was processed into a gel, reinforced with collagen particles and with incorporated adipose tissue-derived stem cells (ASCs). The cell-material constructs were then incubated in a DMEM medium with 2% of FS (DMEM_part), with added polyvinylalcohol nanofibers (PVA_part sample), and for ASCs differentiation towards smooth muscle cells (SMCs), the medium was supplemented either with human platelet lysate released from PVA nanofibers (PVA_PL_part) or with TGF-β1 + BMP-4 (TGF + BMP_part). The constructs were further endothelialised with human umbilical vein endothelial cells (ECs). The immunofluorescence staining of alpha-actin and calponin, and von Willebrand factor, was performed. The proteins involved in cell differentiation, the extracellular matrix (ECM) proteins, and ECM remodelling proteins were evaluated by mass spectrometry on day 12 of culture. Mechanical properties of the gels with ASCs were measured via an unconfined compression test on day 5. Gels evinced limited planar shrinkage, but it was higher in endothelialised TGF + BMP_part gel. Both PVA_PL_part samples and TGF + BMP_part samples supported ASC growth and differentiation towards SMCs, but only PVA_PL_part supported homogeneous endothelialisation. Young modulus of elasticity increased in all samples compared to day 0, and PVA_PL_part gel evinced a slightly higher ratio of elastic energy. The results suggest that PVA_PL_part collagen construct has the highest potential to remodel into a functional vascular wall.
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Electrospun Porous Nanofibers: Pore−Forming Mechanisms and Applications for Photocatalytic Degradation of Organic Pollutants in Wastewater. Polymers (Basel) 2022; 14:polym14193990. [PMID: 36235934 PMCID: PMC9570808 DOI: 10.3390/polym14193990] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 09/13/2022] [Accepted: 09/15/2022] [Indexed: 11/17/2022] Open
Abstract
Electrospun porous nanofibers have large specific surface areas and abundant active centers, which can effectively improve the properties of nanofibers. In the field of photocatalysis, electrospun porous nanofibers can increase the contact area of loaded photocatalytic particles with light, shorten the electron transfer path, and improve photocatalytic activity. In this paper, the main pore−forming mechanisms of electrospun porous nanofiber are summarized as breath figures, phase separation (vapor−induced phase separation, non−solvent−induced phase separation, and thermally induced phase separation) and post−processing (selective removal). Then, the application of electrospun porous nanofiber loading photocatalytic particles in the degradation of pollutants (such as organic, inorganic, and bacteria) in water is introduced, and its future development prospected. Although porous structures are beneficial in improving the photocatalytic performance of nanofibers, they reduce their mechanical properties. Therefore, strategies for improving the mechanical properties of electrospun porous nanofibers are also briefly discussed.
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Advances in Electrospun Hybrid Nanofibers for Biomedical Applications. NANOMATERIALS 2022; 12:nano12111829. [PMID: 35683685 PMCID: PMC9181850 DOI: 10.3390/nano12111829] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 05/18/2022] [Accepted: 05/24/2022] [Indexed: 02/04/2023]
Abstract
Electrospun hybrid nanofibers, based on functional agents immobilized in polymeric matrix, possess a unique combination of collective properties. These are beneficial for a wide range of applications, which include theranostics, filtration, catalysis, and tissue engineering, among others. The combination of functional agents in a nanofiber matrix offer accessibility to multifunctional nanocompartments with significantly improved mechanical, electrical, and chemical properties, along with better biocompatibility and biodegradability. This review summarizes recent work performed for the fabrication, characterization, and optimization of different hybrid nanofibers containing varieties of functional agents, such as laser ablated inorganic nanoparticles (NPs), which include, for instance, gold nanoparticles (Au NPs) and titanium nitride nanoparticles (TiNPs), perovskites, drugs, growth factors, and smart, inorganic polymers. Biocompatible and biodegradable polymers such as chitosan, cellulose, and polycaprolactone are very promising macromolecules as a nanofiber matrix for immobilizing such functional agents. The assimilation of such polymeric matrices with functional agents that possess wide varieties of characteristics require a modified approach towards electrospinning techniques such as coelectrospinning and template spinning. Additional focus within this review is devoted to the state of the art for the implementations of these approaches as viable options for the achievement of multifunctional hybrid nanofibers. Finally, recent advances and challenges, in particular, mass fabrication and prospects of hybrid nanofibers for tissue engineering and biomedical applications have been summarized.
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Nazarnezhad S, Kermani F, Askari VR, Hosseini SA, Ebrahimzadeh-Bideskan A, Moradi A, Oskuee RK, Mollazadeh S, Kargozar S. Preparation and Characterization of Platelet Lysate (PL)-Loaded Electrospun Nanofibers for Epidermal Wound Healing. J Pharm Sci 2022; 111:2531-2539. [DOI: 10.1016/j.xphs.2022.04.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 04/11/2022] [Accepted: 04/11/2022] [Indexed: 12/14/2022]
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