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Chen SH, Lien PH, Lin FH, Chou PY, Chen CH, Chen ZY, Chen SH, Hsieh ST, Huang CC, Kao HK. Aligned core-shell fibrous nerve wrap containing Bletilla striata polysaccharide improves functional outcomes of peripheral nerve repair. Int J Biol Macromol 2023; 241:124636. [PMID: 37119896 DOI: 10.1016/j.ijbiomac.2023.124636] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 04/13/2023] [Accepted: 04/24/2023] [Indexed: 05/01/2023]
Abstract
Peripheral nerve injuries are commonly encountered in extremity traumas. Their motor and sensory recovery following microsurgical repair is limited by slow regeneration speed (<1 mm/d) and subsequent muscle atrophy, which are consequently correlated with the activity of local Schwann cells and efficacy of axon outgrowth. To promote post-surgical nerve regeneration, we synthesized a nerve wrap consisting of an aligned polycaprolactone (PCL) fiber shell with a Bletilla striata polysaccharide (BSP) core (APB). Cell experiments demonstrated that the APB nerve wrap markedly promoted neurite outgrowth and Schwann cell migration and proliferation. Animal experiments applying a rat sciatic nerve repair model indicated that the APB nerve wrap restored conduction efficacy of the repaired nerve and the compound action potential as well as contraction force of the related leg muscles. Histology of the downstream nerves disclosed significantly higher fascicle diameter and myelin thickness with the APB nerve wrap compared to those without BSP. Thus, the BSP-loaded nerve wrap is potentially beneficial for the functional recovery after peripheral nerve repair and offers sustained targeted release of a natural polysaccharide with good bioactivity.
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Affiliation(s)
- Shih-Heng Chen
- Institute of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, Taipei, Taiwan; Department of Plastic and Reconstructive Surgery, Chang-Gung Memorial Hospital, Chang-Gung University and Medical College, Taoyuan, Taiwan.
| | - Po-Hao Lien
- Department of Plastic and Reconstructive Surgery, Chang-Gung Memorial Hospital, Chang-Gung University and Medical College, Taoyuan, Taiwan
| | - Feng-Huei Lin
- Institute of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, Taipei, Taiwan; Division of Biomedical Engineering and Nanomedicine Research, National Health Research Institutes, Miaoli, Taiwan
| | - Pang-Yun Chou
- Department of Plastic and Reconstructive Surgery, Chang-Gung Memorial Hospital, Chang-Gung University and Medical College, Taoyuan, Taiwan
| | - Chih-Hao Chen
- Department of Plastic and Reconstructive Surgery, Chang-Gung Memorial Hospital, Chang-Gung University and Medical College, Taoyuan, Taiwan
| | - Zhi-Yu Chen
- Institute of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, Taipei, Taiwan; Division of Biomedical Engineering and Nanomedicine Research, National Health Research Institutes, Miaoli, Taiwan
| | - Shih-Hsien Chen
- Institute of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, Taipei, Taiwan; Department of Plastic and Reconstructive Surgery, Chang-Gung Memorial Hospital, Chang-Gung University and Medical College, Taoyuan, Taiwan
| | - Sung-Tsang Hsieh
- Department of Anatomy and Cell Biology, National Taiwan University College of Medicine, Taipei, Taiwan; Department of Neurology, National Taiwan University Hospital, Taipei, Taiwan
| | - Chieh-Cheng Huang
- Institute of Biomedical Engineering, National Tsing Hua University, Hsinchu, Taiwan
| | - Huang-Kai Kao
- Department of Plastic and Reconstructive Surgery, Chang-Gung Memorial Hospital, Chang-Gung University and Medical College, Taoyuan, Taiwan.
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Correia C, Reis RL, Pashkuleva I, Alves NM. Adhesive and self-healing materials for central nervous system repair. BIOMATERIALS ADVANCES 2023; 151:213439. [PMID: 37146528 DOI: 10.1016/j.bioadv.2023.213439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 04/14/2023] [Accepted: 04/19/2023] [Indexed: 05/07/2023]
Abstract
The central nervous system (CNS) has a limited ability to regenerate after a traumatic injury or a disease due to the low capacity of the neurons to re-grow and the inhibitory environment formed in situ. Current therapies include the use of drugs and rehabilitation, which do not fully restore the CNS functions and only delay the pathology progression. Tissue engineering offers a simple and versatile solution for this problem through the use of bioconstructs that promote nerve tissue repair by bridging cavity spaces. In this approach, the choice of biomaterial is crucial. Herein, we present recent advances in the design and development of adhesive and self-healing materials that support CNS healing. The adhesive materials have the advantage of promoting recovery without the use of needles or sewing, while the self-healing materials have the capacity to restore the tissue integrity without the need for external intervention. These materials can be used alone or in combination with cells and/or bioactive agents to control the inflammation, formation of free radicals, and proteases activity. We discuss the advantages and drawbacks of different systems. The remaining challenges that can bring these materials to clinical reality are also briefly presented.
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Affiliation(s)
- Cátia Correia
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, Barco, 4805-017 Guimarães, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Rui L Reis
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, Barco, 4805-017 Guimarães, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Iva Pashkuleva
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, Barco, 4805-017 Guimarães, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Natália M Alves
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, Barco, 4805-017 Guimarães, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal.
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Hamdan N, Khodir WKWA, Hamid SA, Nasir MHM, Hamzah AS, Cruz-Maya I, Guarino V. PCL/Gelatin/Graphene Oxide Electrospun Nanofibers: Effect of Surface Functionalization on In Vitro and Antibacterial Response. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:488. [PMID: 36770449 PMCID: PMC9921190 DOI: 10.3390/nano13030488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 01/09/2023] [Accepted: 01/21/2023] [Indexed: 06/18/2023]
Abstract
The emergence of resistance to pathogenic bacteria has resulted from the misuse of antibiotics used in wound treatment. Therefore, nanomaterial-based agents can be used to overcome these limitations. In this study, polycaprolactone (PCL)/gelatin/graphene oxide electrospun nanofibers (PGO) are functionalized via plasma treatment with the monomeric groups diallylamine (PGO-M1), acrylic acid (PGO-M2), and tert-butyl acrylate (PGO-M3) to enhance the action against bacteria cells. The surface functionalization influences the morphology, surface wettability, mechanical properties, and thermal stability of PGO nanofibers. PGO-M1 and PGO-M2 exhibit good antibacterial activity against Staphylococcus aureus and Escherichia coli, whereas PGO-M3 tends to reduce their antibacterial properties compared to PGO nanofibers. The highest proportion of dead bacteria cells is found on the surface of hydrophilic PGO-M1, whereas live cells are colonized on the surface of hydrophobic PGO-M3. Likewise, PGO-M1 shows a good interaction with L929, which is confirmed by the high levels of adhesion and proliferation with respect to the control. All the results confirm that surface functionalization can be strategically used as a tool to engineer PGO nanofibers with controlled antibacterial properties for the fabrication of highly versatile devices suitable for different applications (e.g., health, environmental pollution).
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Affiliation(s)
- Nazirah Hamdan
- Department of Chemistry, Kulliyyah of Science, International Islamic University Malaysia Kuantan Campus, Bandar Indera Mahkota, Kuantan 25200, Pahang, Malaysia
| | - Wan Khartini Wan Abdul Khodir
- Department of Chemistry, Kulliyyah of Science, International Islamic University Malaysia Kuantan Campus, Bandar Indera Mahkota, Kuantan 25200, Pahang, Malaysia
- SYNTOF, Kulliyyah of Science, International Islamic University Malaysia Kuantan Campus, Bandar Indera Mahkota, Kuantan 25200, Pahang, Malaysia
| | - Shafida Abd Hamid
- Department of Chemistry, Kulliyyah of Science, International Islamic University Malaysia Kuantan Campus, Bandar Indera Mahkota, Kuantan 25200, Pahang, Malaysia
- SYNTOF, Kulliyyah of Science, International Islamic University Malaysia Kuantan Campus, Bandar Indera Mahkota, Kuantan 25200, Pahang, Malaysia
| | - Mohd Hamzah Mohd Nasir
- Department of Biotechnology, Kulliyyah of Science, International Islamic University Malaysia Kuantan Campus, Bandar Indera Mahkota, Kuantan 25200, Pahang, Malaysia
| | - Ahmad Sazali Hamzah
- Institute of Science, Universiti Teknologi MARA, Shah Alam 40450, Selangor, Malaysia
| | - Iriczalli Cruz-Maya
- Institute of Polymers, Composites and Biomaterials, National Research Council of Italy, Mostra d’Oltremare Pad.20, V.le J.F.Kennedy 54, 80125 Naples, Italy
| | - Vincenzo Guarino
- Institute of Polymers, Composites and Biomaterials, National Research Council of Italy, Mostra d’Oltremare Pad.20, V.le J.F.Kennedy 54, 80125 Naples, Italy
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Xue W, Shi W, Kong Y, Kuss M, Duan B. Anisotropic scaffolds for peripheral nerve and spinal cord regeneration. Bioact Mater 2021; 6:4141-4160. [PMID: 33997498 PMCID: PMC8099454 DOI: 10.1016/j.bioactmat.2021.04.019] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 04/05/2021] [Accepted: 04/13/2021] [Indexed: 12/12/2022] Open
Abstract
The treatment of long-gap (>10 mm) peripheral nerve injury (PNI) and spinal cord injury (SCI) remains a continuous challenge due to limited native tissue regeneration capabilities. The current clinical strategy of using autografts for PNI suffers from a source shortage, while the pharmacological treatment for SCI presents dissatisfactory results. Tissue engineering, as an alternative, is a promising approach for regenerating peripheral nerves and spinal cords. Through providing a beneficial environment, a scaffold is the primary element in tissue engineering. In particular, scaffolds with anisotropic structures resembling the native extracellular matrix (ECM) can effectively guide neural outgrowth and reconnection. In this review, the anatomy of peripheral nerves and spinal cords, as well as current clinical treatments for PNI and SCI, is first summarized. An overview of the critical components in peripheral nerve and spinal cord tissue engineering and the current status of regeneration approaches are also discussed. Recent advances in the fabrication of anisotropic surface patterns, aligned fibrous substrates, and 3D hydrogel scaffolds, as well as their in vitro and in vivo effects are highlighted. Finally, we summarize potential mechanisms underlying the anisotropic architectures in orienting axonal and glial cell growth, along with their challenges and prospects.
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Affiliation(s)
- Wen Xue
- Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, NE, USA
- Division of Cardiology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, USA
| | - Wen Shi
- Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, NE, USA
- Division of Cardiology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, USA
| | - Yunfan Kong
- Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, NE, USA
- Division of Cardiology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, USA
| | - Mitchell Kuss
- Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, NE, USA
- Division of Cardiology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, USA
| | - Bin Duan
- Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, NE, USA
- Division of Cardiology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, USA
- Department of Surgery, University of Nebraska Medical Center, Omaha, NE, USA
- Department of Mechanical Engineering, University of Nebraska-Lincoln, Lincoln, NE, USA
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5
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Lech M, Mastalska-Popławska J, Laska J. Fabrication of Polyurethane/Polylactide (PU/PLDL) Nanofibers Using Electrospinning Method. MATERIALS 2021; 14:ma14092459. [PMID: 34068487 PMCID: PMC8126013 DOI: 10.3390/ma14092459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/03/2021] [Accepted: 05/07/2021] [Indexed: 11/16/2022]
Abstract
Polylactide and aliphatic polyurethane are biodegradable synthetic polymers which are broadly used as biomaterials in regenerative medicine for implants and scaffolds for tissue engineering. In this paper, the detailed studies of the fabrication of the electrospun fibers of polyurethane/polylactide mixtures were described. The influence of the used solvent (dimethylformamide (DMF)) and diluents (acetone and dichloromethane (DCM)) on the rheological parameters and electrospinning of the described mixtures was examined. Rheological studies showed that polyure-thane/polylactide mixtures have mostly non-Newtonian character, strongly influenced by the diluent. Solutions containing 50 wt.% or more of polyurethane became less viscous after the addition of DCM or acetone, whereas those with bigger amount of polylactide showed higher viscosity after the addition of DCM and lower viscosity after the addition of acetone. Optimized electrospinning process has been elaborated. Fibers with diameters from 250 nm up to 1 µm have been produced and compared. Pure acetone worsened the electrospinning process, but the more DCM was in the mixture, the thinner and more aligned fibers were produced.
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Saracino E, Zuppolini S, Guarino V, Benfenati V, Borriello A, Zamboni R, Ambrosio L. Polyaniline nano-needles into electrospun bio active fibres support in vitro astrocyte response. RSC Adv 2021; 11:11347-11355. [PMID: 35423613 PMCID: PMC8695954 DOI: 10.1039/d1ra00596k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 02/05/2021] [Indexed: 12/13/2022] Open
Abstract
Recent studies have proposed that the bioelectrical response of glial cells, called astrocytes, currently represents a key target for neuroregenerative purposes. Here, we propose the fabrication of electrospun nanofibres containing gelatin and polyaniline (PANi) synthesized in the form of nano-needles (PnNs) as electrically conductive scaffolds to support the growth and functionalities of primary astrocytes. We report a fine control of the morphological features in terms of fibre size and spatial distribution and fibre patterning, i.e. random or aligned fibre organization, as revealed by SEM- and TEM-supported image analysis. We demonstrate that the peculiar morphological properties of fibres - i.e., the fibre size scale and alignment - drive the adhesion, proliferation, and functional properties of primary cortical astrocytes. In addition, the gradual transmission of biochemical and biophysical signals due to the presence of PnNs combined with the presence of gelatin results in a permissive and guiding environment for astrocytes. Accordingly, the functional properties of astrocytes measured via cell patch-clamp experiments reveal that PnNs do not alter the bioelectrical properties of resting astrocytes, thus setting the scene for the use of PnN-loaded nanofibres as bioconductive platforms for interfacing astrocytes and controlling their bioelectrical properties.
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Affiliation(s)
- Emanuela Saracino
- Institute of Organic Synthesis and Photoreactivity (ISOF), National Research Council of Italy via Gobetti, 101 40129 Bologna Italy
| | - Simona Zuppolini
- Institute for Polymers, Composites and Biomaterials (IPCB), National Research Council of Italy Mostra d'Oltremare, Pad. 20, V. le J. F. Kennedy 54 Naples Italy
| | - Vincenzo Guarino
- Institute for Polymers, Composites and Biomaterials (IPCB), National Research Council of Italy Mostra d'Oltremare, Pad. 20, V. le J. F. Kennedy 54 Naples Italy
| | - Valentina Benfenati
- Institute of Organic Synthesis and Photoreactivity (ISOF), National Research Council of Italy via Gobetti, 101 40129 Bologna Italy
| | - Anna Borriello
- Institute for Polymers, Composites and Biomaterials (IPCB), National Research Council of Italy Mostra d'Oltremare, Pad. 20, V. le J. F. Kennedy 54 Naples Italy
| | - Roberto Zamboni
- Institute of Organic Synthesis and Photoreactivity (ISOF), National Research Council of Italy via Gobetti, 101 40129 Bologna Italy
| | - Luigi Ambrosio
- Institute for Polymers, Composites and Biomaterials (IPCB), National Research Council of Italy Mostra d'Oltremare, Pad. 20, V. le J. F. Kennedy 54 Naples Italy
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7
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Maiolo L, Guarino V, Saracino E, Convertino A, Melucci M, Muccini M, Ambrosio L, Zamboni R, Benfenati V. Glial Interfaces: Advanced Materials and Devices to Uncover the Role of Astroglial Cells in Brain Function and Dysfunction. Adv Healthc Mater 2021; 10:e2001268. [PMID: 33103375 DOI: 10.1002/adhm.202001268] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 10/06/2020] [Indexed: 12/13/2022]
Abstract
Research over the past four decades has highlighted the importance of certain brain cells, called glial cells, and has moved the neurocentric vision of structure, function, and pathology of the nervous system toward a more holistic perspective. In this view, the demand for technologies that are able to target and both selectively monitor and control glial cells is emerging as a challenge across neuroscience, engineering, chemistry, and material science. Frequently neglected or marginally considered as a barrier to be overcome between neural implants and neuronal targets, glial cells, and in particular astrocytes, are increasingly considered as active players in determining the outcomes of device implantation. This review provides a concise overview not only of the previously established but also of the emerging physiological and pathological roles of astrocytes. It also critically discusses the most recent advances in biomaterial interfaces and devices that interact with glial cells and thus have enabled scientists to reach unprecedented insights into the role of astroglial cells in brain function and dysfunction. This work proposes glial interfaces and glial engineering as multidisciplinary fields that have the potential to enable significant advancement of knowledge surrounding cognitive function and acute and chronic neuropathologies.
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Affiliation(s)
- Luca Maiolo
- Consiglio Nazionale delle Ricerche Istituto per la Microelettronica e i Microsistemi Via del Fosso del Cavaliere n.100 Roma 00133 Italy
| | - Vincenzo Guarino
- Consiglio Nazionale delle Ricerche Istituto per i Polimeri Compositi e Biomateriali Viale J.F. Kennedy 54, Mostra d'Oltremare, Pad 20 Napoli 80125 Italy
| | - Emanuela Saracino
- Consiglio Nazionale delle Ricerche Istituto per la Sintesi Organica e la Fotoreattività via P. Gobetti 101 Bologna 40129 Italy
| | - Annalisa Convertino
- Consiglio Nazionale delle Ricerche Istituto per la Microelettronica e i Microsistemi Via del Fosso del Cavaliere n.100 Roma 00133 Italy
| | - Manuela Melucci
- Consiglio Nazionale delle Ricerche Istituto per la Sintesi Organica e la Fotoreattività via P. Gobetti 101 Bologna 40129 Italy
| | - Michele Muccini
- Consiglio Nazionale delle Ricerche Istituto per la Studio dei Materiali Nanostrutturati via P. Gobetti 101 Bologna 40129 Italy
| | - Luigi Ambrosio
- Consiglio Nazionale delle Ricerche Istituto per i Polimeri Compositi e Biomateriali Viale J.F. Kennedy 54, Mostra d'Oltremare, Pad 20 Napoli 80125 Italy
| | - Roberto Zamboni
- Consiglio Nazionale delle Ricerche Istituto per la Sintesi Organica e la Fotoreattività via P. Gobetti 101 Bologna 40129 Italy
| | - Valentina Benfenati
- Consiglio Nazionale delle Ricerche Istituto per la Sintesi Organica e la Fotoreattività via P. Gobetti 101 Bologna 40129 Italy
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Structural and functional properties of astrocytes on PCL based electrospun fibres. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 118:111363. [DOI: 10.1016/j.msec.2020.111363] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 07/03/2020] [Accepted: 08/03/2020] [Indexed: 01/18/2023]
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Ferraris S, Spriano S, Scalia AC, Cochis A, Rimondini L, Cruz-Maya I, Guarino V, Varesano A, Vineis C. Topographical and Biomechanical Guidance of Electrospun Fibers for Biomedical Applications. Polymers (Basel) 2020; 12:E2896. [PMID: 33287236 PMCID: PMC7761715 DOI: 10.3390/polym12122896] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 11/30/2020] [Accepted: 12/01/2020] [Indexed: 02/07/2023] Open
Abstract
Electrospinning is gaining increasing interest in the biomedical field as an eco-friendly and economic technique for production of random and oriented polymeric fibers. The aim of this review was to give an overview of electrospinning potentialities in the production of fibers for biomedical applications with a focus on the possibility to combine biomechanical and topographical stimuli. In fact, selection of the polymer and the eventual surface modification of the fibers allow selection of the proper chemical/biological signal to be administered to the cells. Moreover, a proper design of fiber orientation, dimension, and topography can give the opportunity to drive cell growth also from a spatial standpoint. At this purpose, the review contains a first introduction on potentialities of electrospinning for the obtainment of random and oriented fibers both with synthetic and natural polymers. The biological phenomena which can be guided and promoted by fibers composition and topography are in depth investigated and discussed in the second section of the paper. Finally, the recent strategies developed in the scientific community for the realization of electrospun fibers and for their surface modification for biomedical application are presented and discussed in the last section.
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Affiliation(s)
- Sara Ferraris
- Department of Applied Science and Technology, Politecnico di Torino, 10129 Torino, Italy;
| | - Silvia Spriano
- Department of Applied Science and Technology, Politecnico di Torino, 10129 Torino, Italy;
| | - Alessandro Calogero Scalia
- Department of Health Sciences, Center for Translational Research on Autoimmune and Allergic Diseases–CAAD, Università del Piemonte Orientale UPO, 28100 Novara, Italy; (A.C.S.); (A.C.); (L.R.)
| | - Andrea Cochis
- Department of Health Sciences, Center for Translational Research on Autoimmune and Allergic Diseases–CAAD, Università del Piemonte Orientale UPO, 28100 Novara, Italy; (A.C.S.); (A.C.); (L.R.)
| | - Lia Rimondini
- Department of Health Sciences, Center for Translational Research on Autoimmune and Allergic Diseases–CAAD, Università del Piemonte Orientale UPO, 28100 Novara, Italy; (A.C.S.); (A.C.); (L.R.)
| | - Iriczalli Cruz-Maya
- Institute for Polymers, Composites and Biomaterials (IPCB), National Research Council of Italy, Mostra d’Oltremare, Pad. 20, V. le J.F. Kennedy 54, 80125 Napoli, Italy; (I.C.-M.); (V.G.)
| | - Vincenzo Guarino
- Institute for Polymers, Composites and Biomaterials (IPCB), National Research Council of Italy, Mostra d’Oltremare, Pad. 20, V. le J.F. Kennedy 54, 80125 Napoli, Italy; (I.C.-M.); (V.G.)
| | - Alessio Varesano
- Institute of Intelligent Industrial Technologies and Systems for Advanced Manufacturing (STIIMA), National Research Council of Italy (CNR), Corso Giuseppe Pella 16, 13900 Biella, Italy; (A.V.); (C.V.)
| | - Claudia Vineis
- Institute of Intelligent Industrial Technologies and Systems for Advanced Manufacturing (STIIMA), National Research Council of Italy (CNR), Corso Giuseppe Pella 16, 13900 Biella, Italy; (A.V.); (C.V.)
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Comparative Study on Protein-Rich Electrospun Fibers for in Vitro Applications. Polymers (Basel) 2020; 12:polym12081671. [PMID: 32727080 PMCID: PMC7463886 DOI: 10.3390/polym12081671] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 07/23/2020] [Accepted: 07/24/2020] [Indexed: 11/16/2022] Open
Abstract
Electrospinning is the leading technology to fabricate fibrous scaffolds that mimic the architecture of the extracellular matrix of natural tissues. In order to improve the biological response, a consolidated trend involves the blending of synthetic polymers with natural proteins to form protein-rich fibers that include selected biochemical cues able to more actively support in vitro cell interaction. In this study, we compared protein-rich fibers fabricated via electrospinning by the blending of poly ε-caprolactone (PCL) with three different proteins, i.e., gelatin, zein, and keratin, respectively. We demonstrated that the peculiar features of the proteins used significantly influence the morphological properties, in terms of fiber size and distribution. Moreover, keratin drastically enhances the fiber hydrophilicity (water contact angle equal to 44.3° ± 3.9°) with positive effects on cell interaction, as confirmed by the higher proliferation of human mesenchymal stem cells (hMSC) until 7 days. By contrast, gelatin and zein not equally contribute to the fiber wettability (water contact angles equal to 95.2° ± 1.2° and 76.3° ± 4.0°, respectively) due to morphological constraints, i.e., broader fiber diameter distribution ascribable to the non-homogeneous presence of the protein along the fibers, or chemical constrains, i.e., large amount of non-polar amino acids. According to in vitro experimental studies, which included SEM and confocal microscopy analyses and vitality assay, we concluded that keratin is the most promising protein to be combined with PCL for the fabrication of biologically instructive fibers for in vitro applications.
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Guida P, Piscitelli E, Marrese M, Martino V, Cirillo V, Guarino V, Angeli E, Cocola C, Pelucchi P, Repetto L, Firpo G, Karnavas T, Gotte M, Gritzapis A, D'Albore M, Repetto D, Pezzuoli D, Missitzis I, Porta G, Bertalot G, Bellipanni G, Zucchi I, Ambrosio L, Valbusa U, Reinbold RA. Integrating Microstructured Electrospun Scaffolds in an Open Microfluidic System for in Vitro Studies of Human Patient-Derived Primary Cells. ACS Biomater Sci Eng 2020; 6:3649-3663. [PMID: 33463182 DOI: 10.1021/acsbiomaterials.0c00352] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Recent studies have suggested that microenvironmental stimuli play a significant role in regulating cellular proliferation and migration, as well as in modulating self-renewal and differentiation processes of mammary cells with stem cell (SCs) properties. Recent advances in micro/nanotechnology and biomaterial synthesis/engineering currently enable the fabrication of innovative tissue culture platforms suitable for maintenance and differentiation of SCs in vitro. Here, we report the design and fabrication of an open microfluidic device (OMD) integrating removable poly(ε-caprolactone) (PCL) based electrospun scaffolds, and we demonstrate that the OMD allows investigation of the behavior of human cells during in vitro culture in real time. Electrospun scaffolds with modified surface topography and chemistry can influence attachment, proliferation, and differentiation of mammary SCs and epigenetic mechanisms that maintain luminal cell identity as a function of specific morphological or biochemical cues imparted by tailor-made fiber post-treatments. Meanwhile, the OMD architecture allows control of cell seeding and culture conditions to collect more accurate and informative in vitro assays. In perspective, integrated systems could be tailor-made to mimic specific physiological conditions of the local microenvironment and then analyze the response from screening specific drugs for more effective diagnostics, long-term prognostics, and disease intervention in personalized medicine.
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Affiliation(s)
- Patrizia Guida
- Department of Physics, University of Genoa, via Dodecaneso 33, 16146 Genoa, Italy
| | - Eleonora Piscitelli
- Institute of Biomedical Technologies, National Research Council of Italy, via F.lli Cervi 93, 20090 Segrate, Milan, Italy
| | - Marica Marrese
- Institute of Composite and Biomedical Materials, National Research Council of Italy, Mostra D'Oltremare, Pad. 20, viale Kennedy 54, 80125 Naples, Italy
| | - Valentina Martino
- Institute of Biomedical Technologies, National Research Council of Italy, via F.lli Cervi 93, 20090 Segrate, Milan, Italy
| | - Valentina Cirillo
- Institute of Composite and Biomedical Materials, National Research Council of Italy, Mostra D'Oltremare, Pad. 20, viale Kennedy 54, 80125 Naples, Italy
| | - Vincenzo Guarino
- Institute for Polymers, Composites & Biomaterials, National Research Council of Italy, Mostra d'Oltremare, Pad. 20, viale Kennedy 54, 80125 Naples, Italy
| | - Elena Angeli
- Department of Physics, University of Genoa, via Dodecaneso 33, 16146 Genoa, Italy
| | - Cinzia Cocola
- Institute of Biomedical Technologies, National Research Council of Italy, via F.lli Cervi 93, 20090 Segrate, Milan, Italy.,Consorzio Italbiotech, via Fantoli 15/16, 20138 Milan, Italy
| | - Paride Pelucchi
- Institute of Biomedical Technologies, National Research Council of Italy, via F.lli Cervi 93, 20090 Segrate, Milan, Italy
| | - Luca Repetto
- Department of Physics, University of Genoa, via Dodecaneso 33, 16146 Genoa, Italy
| | - Giuseppe Firpo
- Department of Physics, University of Genoa, via Dodecaneso 33, 16146 Genoa, Italy
| | - Theodoros Karnavas
- Columbia University, Department of Genetics & Development, New York, 10032 United States
| | - Martin Gotte
- Department of Gynecology and Obstetrics, Münster University Hospital, 48149 Münster, Germany
| | - Angelos Gritzapis
- Department of Breast Cancer Surgery, Hospital "Agios Savvas", Leoforos Alexandras Avenue, 171, 11522 Athens, Greece
| | - Marietta D'Albore
- Institute of Composite and Biomedical Materials, National Research Council of Italy, Mostra D'Oltremare, Pad. 20, viale Kennedy 54, 80125 Naples, Italy
| | - Diego Repetto
- Department of Physics, University of Genoa, via Dodecaneso 33, 16146 Genoa, Italy
| | - Denise Pezzuoli
- Department of Physics, University of Genoa, via Dodecaneso 33, 16146 Genoa, Italy
| | - Ioannis Missitzis
- Department of Breast Cancer Surgery, Hospital "Agios Savvas", Leoforos Alexandras Avenue, 171, 11522 Athens, Greece
| | - Giovanni Porta
- Department of Medicine and Surgery, University of Insubria, Varese, Italy
| | - Giovanni Bertalot
- IEO, European Institute of Oncology IRCCS, via G Ripamonti, 435, 20141 Milan, Italy
| | - Gianfranco Bellipanni
- Center for Biotechnology, Sbarro Institute for Research and Molecular Medicine and Department of Biology, Temple University, Philadelphia 19122, United States
| | - Ileana Zucchi
- Institute of Biomedical Technologies, National Research Council of Italy, via F.lli Cervi 93, 20090 Segrate, Milan, Italy
| | - Luigi Ambrosio
- Institute for Polymers, Composites & Biomaterials, National Research Council of Italy, Mostra d'Oltremare, Pad. 20, viale Kennedy 54, 80125 Naples, Italy
| | - Ugo Valbusa
- Department of Physics, University of Genoa, via Dodecaneso 33, 16146 Genoa, Italy
| | - Rolland A Reinbold
- Institute of Biomedical Technologies, National Research Council of Italy, via F.lli Cervi 93, 20090 Segrate, Milan, Italy
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12
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Zuppolini S, Cruz-Maya I, Guarino V, Borriello A. Optimization of Polydopamine Coatings onto Poly-ε-Caprolactone Electrospun Fibers for the Fabrication of Bio-Electroconductive Interfaces. J Funct Biomater 2020; 11:E19. [PMID: 32192126 PMCID: PMC7151565 DOI: 10.3390/jfb11010019] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 03/12/2020] [Accepted: 03/13/2020] [Indexed: 01/28/2023] Open
Abstract
In recent years, mussel adhesive proteins have attracted much attention because they can form strong adhesive interface interactions with various substrates in a wet environment. Inspired by their catechol- and amine-based molecular structure, polydopamine (PDA), a dopamine derived synthetic eumelanin polymer, was recognized as a suitable bio-interface coating. PDA was successfully used to improve adhesion due to the availability of copious functional groups for covalently immobilizing biomolecules and anchoring reactive species and ions. Recently, it has been demonstrated that PDA and its derivatives can be successfully used for the surface modification of implants interfaces to modulate in vitro cellular responses in order to enhance the in vivo functionality of biomedical implants (i.e., prosthesis). Herein, we propose the development of multifunctional scaffolds based on polyε-caprolactone (PCL) electrospun fibers coated with PDA via electro fluid dynamic methods, by optimizing polymerization/oxidation reactions capable of driving PDA self-assembly, and, ultimately, investigating the effects on cell response. Morphological analyses have confirmed the possibility to obtain different surface topographies as a function of the coating process while in vitro studies proved the ability of PDA coating to interact with cells no compromising in vitro viability. In perspective, in vitro conductive properties of fibers will be further investigated in order to validate their promising use as bioconductive interfaces for tissue engineering applications.
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Affiliation(s)
| | | | - Vincenzo Guarino
- Institute for Polymers, Composites and Biomaterials (IPCB)—National Research Council of Italy, V.le Kennedy 54, 80125 Naples, Italy; (S.Z.); (I.C.-M.)
| | - Anna Borriello
- Institute for Polymers, Composites and Biomaterials (IPCB)—National Research Council of Italy, V.le Kennedy 54, 80125 Naples, Italy; (S.Z.); (I.C.-M.)
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13
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Elmowafy E, Abdal-Hay A, Skouras A, Tiboni M, Casettari L, Guarino V. Polyhydroxyalkanoate (PHA): applications in drug delivery and tissue engineering. Expert Rev Med Devices 2019; 16:467-482. [PMID: 31058550 DOI: 10.1080/17434440.2019.1615439] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
INTRODUCTION The applications of naturally obtained polymers are tremendously increased due to them being biocompatible, biodegradable, environmentally friendly and renewable in nature. Among them, polyhydroxyalkanoates are widely studied and they can be utilized in many areas of human life research such as drug delivery, tissue engineering, and other medical applications. AREAS COVERED This review provides an overview of the polyhydroxyalkanoates biosynthesis and their possible applications in drug delivery in the range of micro- and nano-size. Moreover, the possible applications in tissue engineering are covered considering macro- and microporous scaffolds and extracellular matrix analogs. EXPERT COMMENTARY The majority of synthetic plastics are non-biodegradable so, in the last years, a renewed interest is growing to develop alternative processes to produce biologically derived polymers. Among them, PHAs present good properties such as high immunotolerance, low toxicity, biodegradability, so, they are promisingly using as biomaterials in biomedical applications.
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Affiliation(s)
- Enas Elmowafy
- a Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy , Ain Shams University , Cairo , Egypt
| | - Abdalla Abdal-Hay
- b Dentistry and Oral Health School , The University of Queensland , Qld , Australia
| | - Athanasios Skouras
- c Department of Biomolecular Sciences , University of Urbino , Urbino (PU) , Italy.,d Department of Life Sciences , School of Sciences, European University Cyprus , Nicosia , Cyprus
| | - Mattia Tiboni
- c Department of Biomolecular Sciences , University of Urbino , Urbino (PU) , Italy
| | - Luca Casettari
- c Department of Biomolecular Sciences , University of Urbino , Urbino (PU) , Italy
| | - Vincenzo Guarino
- e Institute of Polymers, composites and Biomaterials , National Research Council of Italy , Naples , Italy
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14
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Cruz-Maya I, Guarino V, Almaguer-Flores A, Alvarez-Perez MA, Varesano A, Vineis C. Highly polydisperse keratin rich nanofibers: Scaffold design and in vitro characterization. J Biomed Mater Res A 2019; 107:1803-1813. [PMID: 31004452 DOI: 10.1002/jbm.a.36699] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 03/11/2019] [Accepted: 04/16/2019] [Indexed: 02/03/2023]
Abstract
The use of bioactive proteins such as keratin has been successfully explored to improve the biological interface of scaffolds with cells during the tissue regeneration. In this work, it is optimized the fabrication of nanofibers combining wool keratin extracted by sulfitolysis, with polycaprolactone (PCL) in order to design bicomponent fibrous matrices able to exert a self-adapting pattern of signals-morphological, chemical, or physical-confined at the single fiber level, to influence cell and bacteria interactions. It is demonstrated that the blending of highly polydisperse keratin with PCL (50:50) improves the stability of the electrospinning process, promoting the formation of nanofibers-144.1 ± 43.9 nm-without the formation of defects (i.e., beads, ribbons) typically recognized in the fabrication of keratin ones. Moreover, keratin drastically increases the fiber hydrophilicity-compared with PCL fiber alone-thus improving the hMSC adhesion and in vitro proliferation until 14 days. Moreover, the growth of bacterial strains (i.e., Escherichia coli and Staphylococcus aureus) seems to be not specifically inhibited by the contribution of keratin, so that the integration of further selected compounds (i.e., metal ions) is suggested to more efficiently fight against bacteria resistance, to make them suitable for the regeneration of different interfaces and soft tissues (i.e., skin and cornea). © 2019 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 107A: 1803-1813, 2019.
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Affiliation(s)
- Iriczalli Cruz-Maya
- IPCB/CNR, Institute of Polymers, Composites and Biomaterials - Consiglio Nazionale delle Ricerche, Mostra D'Oltremare, Pad. 20, V.le J.F. Kennedy 54, 80125, Naples, Italy.,Department of Chemical, Materials and Industrial Production Engineering, University of Naples Federico II, Naples, Italy
| | - Vincenzo Guarino
- IPCB/CNR, Institute of Polymers, Composites and Biomaterials - Consiglio Nazionale delle Ricerche, Mostra D'Oltremare, Pad. 20, V.le J.F. Kennedy 54, 80125, Naples, Italy
| | - Argelia Almaguer-Flores
- Tissue Bioengineering Laboratory, DEPeI, School of Dentistry, Universidad Nacional Autonoma de Mexico (UNAM), Circuito Exterior s/n C.P., 04510, Coyoacán, Mexico, DF, Mexico
| | - Marco A Alvarez-Perez
- Tissue Bioengineering Laboratory, DEPeI, School of Dentistry, Universidad Nacional Autonoma de Mexico (UNAM), Circuito Exterior s/n C.P., 04510, Coyoacán, Mexico, DF, Mexico
| | - Alessio Varesano
- ISMAC/CNR, Institute for Macromolecular Studies - Consiglio Nazionale delle Ricerche, C.so G. Pella 16, Biella, Italy
| | - Claudia Vineis
- ISMAC/CNR, Institute for Macromolecular Studies - Consiglio Nazionale delle Ricerche, C.so G. Pella 16, Biella, Italy
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15
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Pavliňáková V, Fohlerová Z, Pavliňák D, Khunová V, Vojtová L. Effect of halloysite nanotube structure on physical, chemical, structural and biological properties of elastic polycaprolactone/gelatin nanofibers for wound healing applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 91:94-102. [DOI: 10.1016/j.msec.2018.05.033] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Revised: 02/02/2018] [Accepted: 05/08/2018] [Indexed: 10/16/2022]
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16
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Zhou K, Feng B, Wang W, Jiang Y, Zhang W, Zhou G, Jiang T, Cao Y, Liu W. Nanoscaled and microscaled parallel topography promotes tenogenic differentiation of ASC and neotendon formation in vitro. Int J Nanomedicine 2018; 13:3867-3881. [PMID: 30013341 PMCID: PMC6038871 DOI: 10.2147/ijn.s161423] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Background Topography at different scales plays an important role in directing mesenchymal stem cell differentiation including adipose-derived stem cells (ASCs) and the differential effect remains to be investigated. Purpose This study aimed to investigate the similarity and difference between micro- and nanoscaled aligned topography for inducing tenogenic differentiation of human ASCs (hASCs). Methods Parallel microgrooved PDMS membrane and a parallel aligned electrospun nanofibers of gelatin/poly-ε-caprolactone mixture were employed as the models for the study. Results Aligned topographies of both microscales and nanoscales could induce an elongated cell shape with parallel alignment, as supported by quantitative cell morphology analysis (cell area, cell body aspect, and cell body major axis angle). qPCR analysis also demonstrated that the aligned topography at both scales could induce the gene expressions of various tenogenic markers at the 7th day of in vitro culture including tenomodulin, collagen I and collagen VI, decorin, tenascin-C and biglycan, but with upregulated expression of scleraxis and tenascin-C only in microscaled topography. Additionally, tenogenic differentiation at the 3rd day was confirmed only at microscale. Furthermore, microscaled topography was confirmed for its tenogenic induction at tissue level as neotendon tissue was formed with the evidence of mature type I collagen fibers only in parallel aligned polyglycolic acid (PGA) microfibers after in vitro culture with mouse ASCs. Instead, only fat tissue was formed in random patterned PGA microfibers. Conclusion Both microscaled and nanoscaled aligned topographies could induce tenogenic differentiation of hASCs and micro-scaled topography seemed better able to induce elongated cell shape and stable tenogenic marker expression when compared to nanoscaled topography. The microscaled inductive effect was also confirmed at tissue level by neotendon formation in vitro.
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Affiliation(s)
- Kaili Zhou
- Department of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of Tissue Engineering, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University - School of Medicine, Shanghai, People's Republic of China, ;
| | - Bei Feng
- Shanghai Children's Medical Center, Shanghai Jiao Tong University - School of Medicine, Shanghai, People's Republic of China
| | - Wenbo Wang
- Department of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of Tissue Engineering, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University - School of Medicine, Shanghai, People's Republic of China, ;
| | - Yongkang Jiang
- Department of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of Tissue Engineering, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University - School of Medicine, Shanghai, People's Republic of China, ;
| | - Wenjie Zhang
- Department of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of Tissue Engineering, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University - School of Medicine, Shanghai, People's Republic of China, ; .,National Tissue Engineering Center of China, Shanghai, People's Republic of China, ;
| | - Guangdong Zhou
- Department of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of Tissue Engineering, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University - School of Medicine, Shanghai, People's Republic of China, ; .,National Tissue Engineering Center of China, Shanghai, People's Republic of China, ;
| | - Ting Jiang
- Department of Burn and Plastic Surgery, Nanchong Central Hospital, the Second Clinical College of North Sichuan Medical College, Nanchong, Sichuan, People's Republic of China
| | - Yilin Cao
- Department of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of Tissue Engineering, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University - School of Medicine, Shanghai, People's Republic of China, ; .,National Tissue Engineering Center of China, Shanghai, People's Republic of China, ;
| | - Wei Liu
- Department of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of Tissue Engineering, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University - School of Medicine, Shanghai, People's Republic of China, ; .,National Tissue Engineering Center of China, Shanghai, People's Republic of China, ;
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17
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Abdul Khodir WKW, Abdul Razak AH, Ng MH, Guarino V, Susanti D. Encapsulation and Characterization of Gentamicin Sulfate in the Collagen Added Electrospun Nanofibers for Skin Regeneration. J Funct Biomater 2018; 9:jfb9020036. [PMID: 29783681 PMCID: PMC6023495 DOI: 10.3390/jfb9020036] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Revised: 04/26/2018] [Accepted: 05/07/2018] [Indexed: 12/31/2022] Open
Abstract
In the current practice, the clinical use of conventional skin substitutes such as autogenous skin grafts have shown several problems, mainly with respect to limited sources and donor site morbidity. In order to overcome these limitations, the use of smart synthetic biomaterials is tremendously diffusing as skin substitutes. Indeed, engineered skin grafts or analogues frequently play an important role in the treatment of chronic skin wounds, by supporting the regeneration of newly formed tissue, and at the same time preventing infections during the long-term treatment. In this context, natural proteins such as collagen—natively present in the skin tissue—embedded in synthetic polymers (i.e., PCL) allow the development of micro-structured matrices able to mimic the functions and to structure of the surrounding extracellular matrix. Moreover, the encapsulation of drugs, such as gentamicin sulfate, also improves the bioactivity of nanofibers, due to the efficient loading and a controlled drug release towards the site of interest. Herein, we have done a preliminary investigation on the capability of gentamicin sulfate, loaded into collagen-added nanofibers, for the controlled release in local infection treatments. Experimental studies have demonstrated that collagen added fibers can be efficaciously used to administrate gentamicin for 72 h without any toxic in vitro response, thus emerging as a valid candidate for the therapeutic treatment of infected wounds.
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Affiliation(s)
- Wan Khartini Wan Abdul Khodir
- Department of Chemistry, Kulliyyah of Science, International Islamic University of Malaysia Kuantan Campus, Bandar Indera Mahkota, Kuantan 25200, Pahang, Malaysia.
| | - Abdul Hakim Abdul Razak
- Department of Chemistry, Kulliyyah of Science, International Islamic University of Malaysia Kuantan Campus, Bandar Indera Mahkota, Kuantan 25200, Pahang, Malaysia.
| | - Min Hwei Ng
- Tissue Engineering Centre, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur 56000, Malaysia.
| | - Vincenzo Guarino
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Mostra d'Oltremare, Pad. 20, V. le Kennedy 54, 80125 Naples, Italy.
| | - Deny Susanti
- Department of Chemistry, Kulliyyah of Science, International Islamic University of Malaysia Kuantan Campus, Bandar Indera Mahkota, Kuantan 25200, Pahang, Malaysia.
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18
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Core-shell PVA/gelatin nanofibrous scaffolds using co-solvent, aqueous electrospinning: Toward a green approach. J Appl Polym Sci 2018. [DOI: 10.1002/app.46582] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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19
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Short-Term Degradation of Bi-Component Electrospun Fibers: Qualitative and Quantitative Evaluations via AFM Analysis. J Funct Biomater 2018; 9:jfb9020027. [PMID: 29601499 PMCID: PMC6023316 DOI: 10.3390/jfb9020027] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Revised: 02/28/2018] [Accepted: 03/20/2018] [Indexed: 12/21/2022] Open
Abstract
Electrospun polymeric fibers are currently used as 3D models for in vitro applications in biomedical areas, i.e., tissue engineering, cell and drug delivery. The high customization of the electrospinning process offers numerous opportunities to manipulate and control surface area, fiber diameter, and fiber density to evaluate the response of cells under different morphological and/or biochemical stimuli. The aim of this study was to investigate—via atomic force microscopy (AFM)—the chemical and morphological changes in bi-component electrospun fibers (BEFs) during the in vitro degradation process using a biological medium. BEFs were fabricated by electrospinning a mixture of synthetic-polycaprolactone (PCL)-and natural polymers (gelatin) into a binary solution. During the hydrolytic degradation of protein, no significant remarkable effects were recognized in terms of fiber integrity. However, increases in surface roughness as well as a decrease in fiber diameter as a function of the degradation conditions were detected. We suggest that morphological and chemical changes due to the local release of gelatin positively influence cell behavior in culture, in terms of cell adhesion and spreading, thus working to mimic the native microenvironment of natural tissues.
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20
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Guarino V, Cruz-Maya I, Altobelli R, Abdul Khodir WK, Ambrosio L, Alvarez Pèrez MA, Flores AA. Electrospun polycaprolactone nanofibres decorated by drug loaded chitosan nano-reservoirs for antibacterial treatments. NANOTECHNOLOGY 2017; 28:505103. [PMID: 29058684 DOI: 10.1088/1361-6528/aa9542] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The main limitation of conventional antibiotic therapies concerns the low efficacy to fight bacteria attacks during long treatment times. In this context, the integrated use of electrofluidodynamics (EFDs)-basically electrospinning and electrospraying-may represent an interesting route for designing nanostructured platforms with controlled release to prevent the formation of bacterial biofilms in oral implant sites. They allow for the deposition of nanofibres and nanoparticles by different modes-i.e. sequential, simultaneous-for the fabrication of more efficacious systems in terms of degradation protection, pharmacokinetic control and drug distribution to the surrounding tissues. Herein, we will investigate EFDs processing modes and conditions to decorate polycaprolactone nanofibres surfaces by chitosan nano-reservoirs for the administration of Amoxicillin Trihydrate as an innovative antibacterial treatment of the periodontal pocket.
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Affiliation(s)
- Vincenzo Guarino
- Institute of Polymers, Composites and Biomaterials, Naples, National Research Council of Italy, Italy
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21
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Marrese M, Guarino V, Fasolino I, Cirillo V, Ambrosio L. Degradation and early in vitro activity of healthy hepatocytes onto bicomponent electrospun fibers. INT J POLYM MATER PO 2017. [DOI: 10.1080/00914037.2017.1405347] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Marica Marrese
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Naples, Italy
| | - Vincenzo Guarino
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Naples, Italy
| | - Ines Fasolino
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Naples, Italy
| | - Valentina Cirillo
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Naples, Italy
| | - Luigi Ambrosio
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Naples, Italy
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22
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Papa A, Guarino V, Cirillo V, Oliviero O, Ambrosio L. Optimization of Bicomponent Electrospun Fibers for Therapeutic Use: Post-Treatments to Improve Chemical and Biological Stability. J Funct Biomater 2017; 8:jfb8040047. [PMID: 29035303 PMCID: PMC5748554 DOI: 10.3390/jfb8040047] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 10/10/2017] [Accepted: 10/10/2017] [Indexed: 11/16/2022] Open
Abstract
Bicomponent electrospun nanofibers based on the combination of synthetic (i.e., aliphatic polyesters such as polycaprolactone (PCL)) and natural proteins (i.e., gelatin) have been extensively investigated as temporary platforms to instruct cells by the release of molecular/pharmaceutical signals for the regeneration of several tissues. Here, water soluble proteins (i.e., gelatin), strictly embedded to PCL, act as carriers of bioactive molecules, thus improving bioavailability and supporting cell activities during in vitro regeneration. However, these proteins are rapidly digested by enzymes, locally produced by many different cell types, both in vitro and in vivo, with significant drawbacks in the control of molecular release. Hence, we have investigated three post-processing strategies based on the use of different crosslinking agents-(1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride) (EDC), glyceraldehyde (GC), and 1,4-butanediol diglycidyl ether (BDDGE)-to delay the dissolution time of gelatin macromolecules from bicomponent fibers. All of the qualitative (i.e., SEM, TGA) and quantitative (i.e., Trinitrobenzene sulfonate (TNBS) and bicinchoninic acid (BCA) assays) morphological/chemical analyses as well as biocompatibility assays indicate that EDC crosslinking improves the chemical stability of bicomponent fibers at 37 °C and provides a more efficient encapsulation and controlled sustained release of drug, thus resulting in the best post-treatment to design bio-inspired fibrous platforms for the extended in vitro release of drugs.
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Affiliation(s)
- Antonio Papa
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Mostra d'Oltremare, Pad. 20, V. le Kennedy 54, 80125 Naples, Italy.
- IMAST Scarl, P.za Bovio 22, 80133 Naples, Italy.
| | - Vincenzo Guarino
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Mostra d'Oltremare, Pad. 20, V. le Kennedy 54, 80125 Naples, Italy.
| | - Valentina Cirillo
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Mostra d'Oltremare, Pad. 20, V. le Kennedy 54, 80125 Naples, Italy.
| | - Olimpia Oliviero
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Mostra d'Oltremare, Pad. 20, V. le Kennedy 54, 80125 Naples, Italy.
| | - Luigi Ambrosio
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Mostra d'Oltremare, Pad. 20, V. le Kennedy 54, 80125 Naples, Italy.
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Shah Hosseini N, Bölgen N, Khenoussi N, Yılmaz ŞN, Yetkin D, Hekmati AH, Schacher L, Adolphe D. Novel 3D electrospun polyamide scaffolds prepared by 3D printed collectors and their interaction with chondrocytes. INT J POLYM MATER PO 2017. [DOI: 10.1080/00914037.2017.1309541] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Neda Shah Hosseini
- Department of Textile, Laboratoire de Physique et Mécanique Textiles EAC 7189 CNRS–UHA, Mulhouse, France
| | - Nimet Bölgen
- Department of Chemical Engineering, Faculty of Engineering, Mersin University, Mersin, Turkey
| | - Nabyl Khenoussi
- Department of Textile, Laboratoire de Physique et Mécanique Textiles EAC 7189 CNRS–UHA, Mulhouse, France
| | - Şakir Necat Yılmaz
- Department of Histology and Embryology, Faculty of Medicine, Mersin University, Mersin, Turkey
| | - Derya Yetkin
- Department of Histology and Embryology, Faculty of Medicine, Mersin University, Mersin, Turkey
| | - Amir Houshang Hekmati
- Department of Textile Engineering, Faculty of Engineering, South Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Laurence Schacher
- Department of Textile, Laboratoire de Physique et Mécanique Textiles EAC 7189 CNRS–UHA, Mulhouse, France
| | - Dominique Adolphe
- Department of Textile, Laboratoire de Physique et Mécanique Textiles EAC 7189 CNRS–UHA, Mulhouse, France
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Gnavi S, Fornasari BE, Tonda-Turo C, Laurano R, Zanetti M, Ciardelli G, Geuna S. In vitro evaluation of gelatin and chitosan electrospun fibres as an artificial guide in peripheral nerve repair: a comparative study. J Tissue Eng Regen Med 2017; 12:e679-e694. [PMID: 27860458 DOI: 10.1002/term.2351] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Revised: 10/17/2016] [Accepted: 11/09/2016] [Indexed: 11/07/2022]
Abstract
Random and aligned gelatin (GL) and chitosan (CS) nano-fibres have been prepared by electrospinning tuning the collector rotation speed. The effect of fibre alignment on cell adhesion and proliferation was assessed in vitro by using different Schwann cell (SC) and neuronal models. Moreover, actin cytoskeleton organization, lamellipodia and filipodia formation, and axon outgrowth were evaluated. GL and CS fibres induced similar adhesion and proliferation rates. GL and CS random fibres promoted higher adhesion and proliferation rates induction in comparison to the aligned ones, although GL and CS fibres alignment resulted in SC and axon-oriented growth. Filipodia formation was higher on aligned fibres, suggesting that these substrates can promote higher cell migration in comparison to random ones. 50B11 (neuronal cell line) differentiation was higher on GL fibres, whereas no differences were observed in dorsal root ganglia explants model. These data suggest that both GL and CS fibres can be promising substrates to be used in peripheral nerve reconstruction. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- S Gnavi
- Department of Clinical and Biological Sciences, University of Torino, Orbassano, 10043, Italy.,Neuroscience Institute of the Cavalieri-Ottolenghi Foundation, University of Torino, Orbassano, 10043, Italy
| | - B E Fornasari
- Department of Clinical and Biological Sciences, University of Torino, Orbassano, 10043, Italy.,Neuroscience Institute of the Cavalieri-Ottolenghi Foundation, University of Torino, Orbassano, 10043, Italy
| | - C Tonda-Turo
- Politecnico di Torino, Department of Mechanical and Aerospace Engineering, Politecnico of Torino, Torino, 10100, Italy
| | - R Laurano
- Politecnico di Torino, Department of Mechanical and Aerospace Engineering, Politecnico of Torino, Torino, 10100, Italy
| | - M Zanetti
- Nanostructured Interfaces and Surfaces, Department of Chemistry, University of Torino, Torino, 10100, Italy
| | - G Ciardelli
- Politecnico di Torino, Department of Mechanical and Aerospace Engineering, Politecnico of Torino, Torino, 10100, Italy.,CNR-IPCF UOS, Pisa, 56124, Italy
| | - S Geuna
- Department of Clinical and Biological Sciences, University of Torino, Orbassano, 10043, Italy.,Neuroscience Institute of the Cavalieri-Ottolenghi Foundation, University of Torino, Orbassano, 10043, Italy
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Marrese M, Guarino V, Ambrosio L. Atomic Force Microscopy: A Powerful Tool to Address Scaffold Design in Tissue Engineering. J Funct Biomater 2017; 8:E7. [PMID: 28208801 PMCID: PMC5371880 DOI: 10.3390/jfb8010007] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Revised: 02/07/2017] [Accepted: 02/08/2017] [Indexed: 11/16/2022] Open
Abstract
Functional polymers currently represent a basic component of a large range of biological and biomedical applications including molecular release, tissue engineering, bio-sensing and medical imaging. Advancements in these fields are driven by the use of a wide set of biodegradable polymers with controlled physical and bio-interactive properties. In this context, microscopy techniques such as Atomic Force Microscopy (AFM) are emerging as fundamental tools to deeply investigate morphology and structural properties at micro and sub-micrometric scale, in order to evaluate the in time relationship between physicochemical properties of biomaterials and biological response. In particular, AFM is not only a mere tool for screening surface topography, but may offer a significant contribution to understand surface and interface properties, thus concurring to the optimization of biomaterials performance, processes, physical and chemical properties at the micro and nanoscale. This is possible by capitalizing the recent discoveries in nanotechnologies applied to soft matter such as atomic force spectroscopy to measure surface forces through force curves. By tip-sample local interactions, several information can be collected such as elasticity, viscoelasticity, surface charge densities and wettability. This paper overviews recent developments in AFM technology and imaging techniques by remarking differences in operational modes, the implementation of advanced tools and their current application in biomaterials science, in terms of characterization of polymeric devices in different forms (i.e., fibres, films or particles).
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Affiliation(s)
- Marica Marrese
- Faculty of Sciences, Biophotonics and Medical Imaging group and Laser Lab, VU University Amsterdam, De Boelelaan 1081 HV Amsterdam, The Netherlands.
| | - Vincenzo Guarino
- Institute of Polymers, Composites and Biomaterials, National Research Council of Italy, V.le Kennedy 54, Pad 20, Mostra d'Oltremare, Naples 80125, Italy.
| | - Luigi Ambrosio
- Institute of Polymers, Composites and Biomaterials, National Research Council of Italy, V.le Kennedy 54, Pad 20, Mostra d'Oltremare, Naples 80125, Italy.
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Altobelli R, Guarino V, Ambrosio L. Micro- and nanocarriers by electrofludodynamic technologies for cell and molecular therapies. Process Biochem 2016. [DOI: 10.1016/j.procbio.2016.09.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Guarino V, Ambrosio L. Electrofluidodynamics: exploring a new toolbox to design biomaterials for tissue regeneration and degeneration. Nanomedicine (Lond) 2016; 11:1515-8. [DOI: 10.2217/nnm-2016-0108] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Affiliation(s)
- Vincenzo Guarino
- Institute for Polymers, Composites & Biomaterials, National Research Council of Italy, V.le Kennedy 54, 80125, Naples, Italy
| | - Luigi Ambrosio
- Department of Chemical Sciences & Materials Technology, National Research Council of Italy, P.le A. Moro, 7, 00185, Rome, Italy
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Nanofiber Alignment Regulates NIH3T3 Cell Orientation and Cytoskeletal Gene Expression on Electrospun PCL+Gelatin Nanofibers. PLoS One 2016; 11:e0154806. [PMID: 27196306 PMCID: PMC4873125 DOI: 10.1371/journal.pone.0154806] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Accepted: 04/19/2016] [Indexed: 12/27/2022] Open
Abstract
To examine the influence of substrate topology on the behavior of fibroblasts, tissue engineering scaffolds were electrospun from polycaprolactone (PCL) and a blend of PCL and gelatin (PCL+Gel) to produce matrices with both random and aligned nanofibrous orientations. The addition of gelatin to the scaffold was shown to increase the hydrophilicity of the PCL matrix and to increase the proliferation of NIH3T3 cells compared to scaffolds of PCL alone. The orientation of nanofibers within the matrix did not have an effect on the proliferation of adherent cells, but cells on aligned substrates were shown to elongate and align parallel to the direction of substrate fiber alignment. A microarray of cyotoskeleton regulators was probed to examine differences in gene expression between cells grown on an aligned and randomly oriented substrates. It was found that transcriptional expression of eight genes was statistically different between the two conditions, with all of them being upregulated in the aligned condition. The proteins encoded by these genes are linked to production and polymerization of actin microfilaments, as well as focal adhesion assembly. Taken together, the data indicates NIH3T3 fibroblasts on aligned substrates align themselves parallel with their substrate and increase production of actin and focal adhesion related genes.
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Fee T, Downs C, Eberhardt A, Zhou Y, Berry J. Image-based quantification of fiber alignment within electrospun tissue engineering scaffolds is related to mechanical anisotropy. J Biomed Mater Res A 2016; 104:1680-6. [PMID: 26939754 DOI: 10.1002/jbm.a.35697] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Revised: 02/19/2016] [Accepted: 02/25/2016] [Indexed: 11/06/2022]
Abstract
It is well documented that electrospun tissue engineering scaffolds can be fabricated with variable degrees of fiber alignment to produce scaffolds with anisotropic mechanical properties. Several attempts have been made to quantify the degree of fiber alignment within an electrospun scaffold using image-based methods. However, these methods are limited by the inability to produce a quantitative measure of alignment that can be used to make comparisons across publications. Therefore, we have developed a new approach to quantifying the alignment present within a scaffold from scanning electron microscopic (SEM) images. The alignment is determined by using the Sobel approximation of the image gradient to determine the distribution of gradient angles with an image. This data was fit to a Von Mises distribution to find the dispersion parameter κ, which was used as a quantitative measure of fiber alignment. We fabricated four groups of electrospun polycaprolactone (PCL) + Gelatin scaffolds with alignments ranging from κ = 1.9 (aligned) to κ = 0.25 (random) and tested our alignment quantification method on these scaffolds. It was found that our alignment quantification method could distinguish between scaffolds of different alignments more accurately than two other published methods. Additionally, the alignment parameter κ was found to be a good predictor the mechanical anisotropy of our electrospun scaffolds. The ability to quantify fiber alignment within and make direct comparisons of scaffold fiber alignment across publications can reduce ambiguity between published results where cells are cultured on "highly aligned" fibrous scaffolds. This could have important implications for characterizing mechanics and cellular behavior on aligned tissue engineering scaffolds. © 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 104A: 1680-1686, 2016.
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Affiliation(s)
- Timothy Fee
- Department of Biomedical Engineering, University of Alabama at Birmingham, Birmingham, Alabama
| | - Crawford Downs
- Department of Ophthalmology, Center for Ocular Biomechanics and Biotransport, University of Alabama at Birmingham, Birmingham, Alabama
| | - Alan Eberhardt
- Department of Biomedical Engineering, University of Alabama at Birmingham, Birmingham, Alabama
| | - Yong Zhou
- Department of Medicine, Division of Pulmonary, Allergy, and Critical Care Medicine, University of Alabama at Birmingham, Birmingham, Alabama
| | - Joel Berry
- Department of Biomedical Engineering, University of Alabama at Birmingham, Birmingham, Alabama
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Guarino V, Cirillo V, Ambrosio L. Bicomponent electrospun scaffolds to design extracellular matrix tissue analogs. Expert Rev Med Devices 2015; 13:83-102. [PMID: 26619260 DOI: 10.1586/17434440.2016.1126505] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
In the last decade, bicomponent fibers have been proposed to fabricate bio-inspired systems for tissue repair, regenerative medicine, medical healthcare and clinical applications. In comparison with monocomponent fibers, key advantage concerns their ability of self-adapting to the physiological conditions through an extended pattern of signals--morphological, chemical and physical ones--confined at the single fiber level. Hydrophobic/hydrophilic phases may be variously organized by tuneable processing modes (i.e., blending, core/shell, interweaving) thus offering different benefits in terms of biological activity, fluid sorption and molecular transport properties (first generation). The possibility to efficiently graft cell-adhesive proteins and peptide sequences onto the fiber surface mediated by spacers or impregnating hydrogels allows to trigger cell late activities by a controlled and sustained release in vitro of specific biomolecules (i.e., morphogens, growth factors). Here, we introduce an overview of current approaches based on bicomponent fiber use as extra cellular matrix analogs with cell-instructive functions and hierarchal organization of living tissues.
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Affiliation(s)
- Vincenzo Guarino
- a Institute for Polymers, Composites and Biomaterials, Department of Chemical Sciences & Materials Technology , National Research Council of Italy , 80125 Naples , Italy
| | - Valentina Cirillo
- a Institute for Polymers, Composites and Biomaterials, Department of Chemical Sciences & Materials Technology , National Research Council of Italy , 80125 Naples , Italy
| | - Luigi Ambrosio
- a Institute for Polymers, Composites and Biomaterials, Department of Chemical Sciences & Materials Technology , National Research Council of Italy , 80125 Naples , Italy
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Tian L, Prabhakaran MP, Ramakrishna S. Strategies for regeneration of components of nervous system: scaffolds, cells and biomolecules. Regen Biomater 2015; 2:31-45. [PMID: 26813399 PMCID: PMC4669026 DOI: 10.1093/rb/rbu017] [Citation(s) in RCA: 110] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2014] [Revised: 08/29/2014] [Accepted: 09/14/2014] [Indexed: 12/12/2022] Open
Abstract
Nerve diseases including acute injury such as peripheral nerve injury (PNI), spinal cord injury (SCI) and traumatic brain injury (TBI), and chronic disease like neurodegeneration disease can cause various function disorders of nervous system, such as those relating to memory and voluntary movement. These nerve diseases produce great burden for individual families and the society, for which a lot of efforts have been made. Axonal pathways represent a unidirectional and aligned architecture allowing systematic axonal development within the tissue. Following a traumatic injury, the intricate architecture suffers disruption leading to inhibition of growth and loss of guidance. Due to limited capacity of the body to regenerate axonal pathways, it is desirable to have biomimetic approach that has the capacity to graft a bridge across the lesion while providing optimal mechanical and biochemical cues for tissue regeneration. And for central nervous system injury, one more extra precondition is compulsory: creating a less inhibitory surrounding for axonal growth. Electrospinning is a cost-effective and straightforward technique to fabricate extracellular matrix (ECM)-like nanofibrous structures, with various fibrous forms such as random fibers, aligned fibers, 3D fibrous scaffold and core-shell fibers from a variety of polymers. The diversity and versatility of electrospinning technique, together with functionalizing cues such as neurotrophins, ECM-based proteins and conductive polymers, have gained considerable success for the nerve tissue applications. We are convinced that in the future the stem cell therapy with the support of functionalized electrospun nerve scaffolds could be a promising therapy to cure nerve diseases.
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Affiliation(s)
- Lingling Tian
- Mechanical Engineering, Faculty of Engineering, National University of Singapore, 2 Engineering Drive 3, Singapore 117576 and Nanoscience and Nanotechnology Initiative, National University of Singapore, 2 Engineering Drive 3, Singapore 117576
| | - Molamma P Prabhakaran
- Mechanical Engineering, Faculty of Engineering, National University of Singapore, 2 Engineering Drive 3, Singapore 117576 and Nanoscience and Nanotechnology Initiative, National University of Singapore, 2 Engineering Drive 3, Singapore 117576
| | - Seeram Ramakrishna
- Mechanical Engineering, Faculty of Engineering, National University of Singapore, 2 Engineering Drive 3, Singapore 117576 and Nanoscience and Nanotechnology Initiative, National University of Singapore, 2 Engineering Drive 3, Singapore 117576
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Chaudhury K, Kumar V, Kandasamy J, RoyChoudhury S. Regenerative nanomedicine: current perspectives and future directions. Int J Nanomedicine 2014; 9:4153-67. [PMID: 25214780 PMCID: PMC4159316 DOI: 10.2147/ijn.s45332] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Nanotechnology has considerably accelerated the growth of regenerative medicine in recent years. Application of nanotechnology in regenerative medicine has revolutionized the designing of grafts and scaffolds which has resulted in new grafts/scaffold systems having significantly enhanced cellular and tissue regenerative properties. Since the cell–cell and cell-matrix interaction in biological systems takes place at the nanoscale level, the application of nanotechnology gives an edge in modifying the cellular function and/or matrix function in a more desired way to mimic the native tissue/organ. In this review, we focus on the nanotechnology-based recent advances and trends in regenerative medicine and discussed under individual organ systems including bone, cartilage, nerve, skin, teeth, myocardium, liver and eye. Recent studies that are related to the design of various types of nanostructured scaffolds and incorporation of nanomaterials into the matrices are reported. We have also documented reports where these materials and matrices have been compared for their better biocompatibility and efficacy in supporting the damaged tissue. In addition to the recent developments, future directions and possible challenges in translating the findings from bench to bedside are outlined.
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Affiliation(s)
- Koel Chaudhury
- School of Medical Science and Technology, Indian Institute of Technology, Kharagpur, West Bengal, India
| | - Vishu Kumar
- School of Medical Science and Technology, Indian Institute of Technology, Kharagpur, West Bengal, India
| | - Jayaprakash Kandasamy
- School of Medical Science and Technology, Indian Institute of Technology, Kharagpur, West Bengal, India
| | - Sourav RoyChoudhury
- School of Medical Science and Technology, Indian Institute of Technology, Kharagpur, West Bengal, India
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