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Liguori A, Zhao J, Di Gesù R, De Marco R, Gualandi C, Calonghi N, Pollicino A, Gentilucci L, Focarete ML. Peptide direct growth on poly(acrylic acid)/poly(vinyl alcohol) electrospun fibers coated with branched poly(ethylenimine): A solid-phase approach for scaffolds biofunctionalization. Colloids Surf B Biointerfaces 2024; 241:114052. [PMID: 38917667 DOI: 10.1016/j.colsurfb.2024.114052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 06/03/2024] [Accepted: 06/19/2024] [Indexed: 06/27/2024]
Abstract
Due to their resemblance to the fibrillar structure of the extracellular matrix, electrospun nanofibrous meshes are currently used as porous and mechanically stable scaffolds for cell culture. In this study, we propose an innovative methodology for growing peptide sequences directly onto the surface of electrospun nanofibers. To achieve this, electrospun fibers were produced from a poly(acrylic acid)/poly(vinyl alcohol) blend that was thermally crosslinked and subjected to a covalent coating of branched poly(ethylenimine). The exposed amino functionalities on the fiber surface were then used for the direct solid-phase synthesis of the RGD peptide sequence. In contrast to established strategies, mainly involving the grafting of pre-synthesized peptides onto the polymer chains before electrospinning or onto the nanofibers surface, this method allows for the concurrent synthesis and anchoring of peptides to the substrate, with potential applications in combinatorial chemistry. The incorporation of this integrin-binding motive significantly enhanced the nanofibers' ability to capture human cervical carcinoma (HeLa) cells, selected as a proof of concept to assess the functionalities of the developed material.
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Affiliation(s)
- Anna Liguori
- Department of Chemistry "G. Ciamician" and INSTM UdR of Bologna, University of Bologna, via Selmi 2, Bologna 40126, Italy
| | - Junwei Zhao
- Department of Chemistry "G. Ciamician" and INSTM UdR of Bologna, University of Bologna, via Selmi 2, Bologna 40126, Italy
| | - Roberto Di Gesù
- Department of Chemistry "G. Ciamician" and INSTM UdR of Bologna, University of Bologna, via Selmi 2, Bologna 40126, Italy; Ri.MED Foundation, Bandiera st. 11, Palermo 90133, Italy
| | - Rossella De Marco
- Department of Chemistry "G. Ciamician" and INSTM UdR of Bologna, University of Bologna, via Selmi 2, Bologna 40126, Italy
| | - Chiara Gualandi
- Department of Chemistry "G. Ciamician" and INSTM UdR of Bologna, University of Bologna, via Selmi 2, Bologna 40126, Italy; Interdepartmental Center for Industrial Research on Advanced Applications in Mechanical Engineering and Materials Technology, CIRI-MAM, University of Bologna, Viale Risorgimento, 2, Bologna 40136, Italy
| | - Natalia Calonghi
- Department of Pharmacy and Biotechnology, University of Bologna, via Irnerio 48, Bologna 40126, Italy
| | - Antonino Pollicino
- Department of Civil Engineering and Architecture, University of Catania, via S. Sofia 64, Catania 95125, Italy
| | - Luca Gentilucci
- Department of Chemistry "G. Ciamician" and INSTM UdR of Bologna, University of Bologna, via Selmi 2, Bologna 40126, Italy; Health Sciences & Technologies (HST) CIRI, University of Bologna, Via Tolara di Sopra 41/E, Ozzano Emilia Bologna 40064, Italy.
| | - Maria Letizia Focarete
- Department of Chemistry "G. Ciamician" and INSTM UdR of Bologna, University of Bologna, via Selmi 2, Bologna 40126, Italy; Health Sciences & Technologies (HST) CIRI, University of Bologna, Via Tolara di Sopra 41/E, Ozzano Emilia Bologna 40064, Italy.
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Truong AT, Lee SJ, Hamada K, Kiyomi A, Guo H, Yamada Y, Kikkawa Y, Okamoto CT, Nomizu M, MacKay JA. Synergy between Laminin-Derived Elastin-like Polypeptides (LELPs) Optimizes Cell Spreading. Biomacromolecules 2024; 25:4001-4013. [PMID: 38814168 DOI: 10.1021/acs.biomac.4c00144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2024]
Abstract
A major component of the extracellular matrix (ECM), laminins, modulates cells via diverse receptors. Their fragments have emerging utility as components of "ECM-mimetics" optimized to promote cell-based therapies. Recently, we reported that a bioactive laminin peptide known as A99 enhanced cell binding and spreading via fusion to an elastin-like polypeptide (ELP). The ELP "handle" serves as a rapid, noncovalent strategy to concentrate bioactive peptide mixtures onto a surface. We now report that this strategy can be further generalized across an expanded panel of additional laminin-derived elastin-like polypeptides (LELPs). A99 (AGTFALRGDNPQG), A2G80 (VQLRNGFPYFSY), AG73 (RKRLQVQLSIRT), and EF1m (LQLQEGRLHFMFD) all promote cell spreading while showing morphologically distinct F-actin formation. Equimolar mixtures of A99:A2G80-LELPs have synergistic effects on adhesion and spreading. Finally, three of these ECM-mimetics promote the neurite outgrowth of PC-12 cells. The evidence presented here demonstrates the potential of ELPs to deposit ECM-mimetics with applications in regenerative medicine, cell therapy, and tissue engineering.
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Affiliation(s)
- Anh T Truong
- Department of Pharmacology and Pharmaceutical Sciences, Alfred E. Mann School of Pharmacy and Pharmaceutical Sciences, University of Southern California, Los Angeles, California 90089, United States
- Department of Clinical Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan
| | - Shin-Jae Lee
- Department of Biomedical Engineering, Viterbi School of Engineering, University of Southern California, Los Angeles, California 90089, United States
| | - Keisuke Hamada
- Department of Clinical Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan
| | - Anna Kiyomi
- Department of Drug Safety and Risk Management, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan
| | - Hao Guo
- Department of Pharmacology and Pharmaceutical Sciences, Alfred E. Mann School of Pharmacy and Pharmaceutical Sciences, University of Southern California, Los Angeles, California 90089, United States
| | - Yuji Yamada
- Department of Clinical Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan
| | - Yamato Kikkawa
- Department of Clinical Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan
| | - Curtis T Okamoto
- Department of Pharmacology and Pharmaceutical Sciences, Alfred E. Mann School of Pharmacy and Pharmaceutical Sciences, University of Southern California, Los Angeles, California 90089, United States
| | - Motoyoshi Nomizu
- Department of Clinical Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan
| | - J Andrew MacKay
- Department of Pharmacology and Pharmaceutical Sciences, Alfred E. Mann School of Pharmacy and Pharmaceutical Sciences, University of Southern California, Los Angeles, California 90089, United States
- Department of Biomedical Engineering, Viterbi School of Engineering, University of Southern California, Los Angeles, California 90089, United States
- Department of Ophthalmology, Keck School of Medicine, University of Southern California, Los Angeles, California 90033, United States
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Cho Y, Jeong H, Kim B, Jang J, Song YS, Lee DY. Electrospun Poly(L-Lactic Acid)/Gelatin Hybrid Polymer as a Barrier to Periodontal Tissue Regeneration. Polymers (Basel) 2023; 15:3844. [PMID: 37765697 PMCID: PMC10537136 DOI: 10.3390/polym15183844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 09/15/2023] [Accepted: 09/20/2023] [Indexed: 09/29/2023] Open
Abstract
Poly(L-lactic acid) (PLLA) and PLLA/gelatin polymers were prepared via electrospinning to evaluate the effect of PLLA and gelatin content on the mechanical properties, water uptake capacity (WUC), water contact angle (WCA), degradation rate, cytotoxicity and cell proliferation of membranes. As the PLLA concentration increased from 1 wt% to 3 wt%, the tensile strength increased from 5.8 MPa to 9.1 MPa but decreased to 7.0 MPa with 4 wt% PLLA doping. The WUC decreased rapidly from 594% to 236% as the PLLA content increased from 1 to 4 wt% due to the increased hydrophobicity of PLLA. As the gelatin content was increased to 3 wt% PLLA, the strength, WUC and WCA of the PLLA/gelatin membrane changed from 9.1 ± 0.9 MPa to 13.3 ± 2.3 MPa, from 329% to 1248% and from 127 ± 1.2° to 0°, respectively, with increasing gelatin content from 0 to 40 wt%. However, the failure strain decreased from 3.0 to 0.5. The biodegradability of the PLLA/gelatin blend increased from 3 to 38% as the gelatin content increased to 40 wt%. The viability of L-929 and MG-63 cells in the PLLA/gelatin blend was over 95%, and the excellent cell proliferation and mechanical properties suggested that the tunable PLLA/gelatin barrier membrane was well suited for absorbable periodontal tissue regeneration.
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Affiliation(s)
- Youngchae Cho
- Department of Biomedical Engineering, Daelim University, Anyang 13916, Republic of Korea; (Y.C.); (H.J.)
| | - Heeseok Jeong
- Department of Biomedical Engineering, Daelim University, Anyang 13916, Republic of Korea; (Y.C.); (H.J.)
| | - Baeyeon Kim
- Department of Materials Science and Engineering, Incheon National University, Incheon 22012, Republic of Korea;
| | - Juwoong Jang
- Department of R&D Center, Renewmedical Co., Ltd., Bucheon 14532, Republic of Korea;
| | - Yo-Seung Song
- Department of Materials Science and Engineering, Korea Aviation University, Goyang 10540, Republic of Korea;
| | - Deuk Yong Lee
- Department of Biomedical Engineering, Daelim University, Anyang 13916, Republic of Korea; (Y.C.); (H.J.)
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Słota D, Piętak K, Jampilek J, Sobczak-Kupiec A. Polymeric and Composite Carriers of Protein and Non-Protein Biomolecules for Application in Bone Tissue Engineering. MATERIALS (BASEL, SWITZERLAND) 2023; 16:2235. [PMID: 36984115 PMCID: PMC10059071 DOI: 10.3390/ma16062235] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 03/02/2023] [Accepted: 03/08/2023] [Indexed: 06/18/2023]
Abstract
Conventional intake of drugs and active substances is most often based on oral intake of an appropriate dose to achieve the desired effect in the affected area or source of pain. In this case, controlling their distribution in the body is difficult, as the substance also reaches other tissues. This phenomenon results in the occurrence of side effects and the need to increase the concentration of the therapeutic substance to ensure it has the desired effect. The scientific field of tissue engineering proposes a solution to this problem, which creates the possibility of designing intelligent systems for delivering active substances precisely to the site of disease conversion. The following review discusses significant current research strategies as well as examples of polymeric and composite carriers for protein and non-protein biomolecules designed for bone tissue regeneration.
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Affiliation(s)
- Dagmara Słota
- Department of Materials Science, Faculty of Materials Engineering and Physics, Cracow University of Technology, 37 Jana Pawła II Av., 31-864 Krakow, Poland
| | - Karina Piętak
- Department of Materials Science, Faculty of Materials Engineering and Physics, Cracow University of Technology, 37 Jana Pawła II Av., 31-864 Krakow, Poland
| | - Josef Jampilek
- Department of Analytical Chemistry, Faculty of Natural Sciences, Comenius University, Ilkovicova 6, 842 15 Bratislava, Slovakia
- Department of Chemical Biology, Faculty of Science, Palacky University Olomouc, Slechtitelu 27, 783 71 Olomouc, Czech Republic
| | - Agnieszka Sobczak-Kupiec
- Department of Materials Science, Faculty of Materials Engineering and Physics, Cracow University of Technology, 37 Jana Pawła II Av., 31-864 Krakow, Poland
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5
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Onesto V, Forciniti S, Alemanno F, Narayanankutty K, Chandra A, Prasad S, Azzariti A, Gigli G, Barra A, De Martino A, De Martino D, del Mercato LL. Probing Single-Cell Fermentation Fluxes and Exchange Networks via pH-Sensing Hybrid Nanofibers. ACS NANO 2023; 17:3313-3323. [PMID: 36573897 PMCID: PMC9979640 DOI: 10.1021/acsnano.2c06114] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 12/19/2022] [Indexed: 05/31/2023]
Abstract
The homeostatic control of their environment is an essential task of living cells. It has been hypothesized that, when microenvironmental pH inhomogeneities are induced by high cellular metabolic activity, diffusing protons act as signaling molecules, driving the establishment of exchange networks sustained by the cell-to-cell shuttling of overflow products such as lactate. Despite their fundamental role, the extent and dynamics of such networks is largely unknown due to the lack of methods in single-cell flux analysis. In this study, we provide direct experimental characterization of such exchange networks. We devise a method to quantify single-cell fermentation fluxes over time by integrating high-resolution pH microenvironment sensing via ratiometric nanofibers with constraint-based inverse modeling. We apply our method to cell cultures with mixed populations of cancer cells and fibroblasts. We find that the proton trafficking underlying bulk acidification is strongly heterogeneous, with maximal single-cell fluxes exceeding typical values by up to 3 orders of magnitude. In addition, a crossover in time from a networked phase sustained by densely connected "hubs" (corresponding to cells with high activity) to a sparse phase dominated by isolated dipolar motifs (i.e., by pairwise cell-to-cell exchanges) is uncovered, which parallels the time course of bulk acidification. Our method addresses issues ranging from the homeostatic function of proton exchange to the metabolic coupling of cells with different energetic demands, allowing for real-time noninvasive single-cell metabolic flux analysis.
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Affiliation(s)
- Valentina Onesto
- Institute
of Nanotechnology, National Research Council
(CNR-NANOTEC), c/o Campus Ecotekne, via Monteroni, 73100Lecce, Italy
| | - Stefania Forciniti
- Institute
of Nanotechnology, National Research Council
(CNR-NANOTEC), c/o Campus Ecotekne, via Monteroni, 73100Lecce, Italy
| | - Francesco Alemanno
- Institute
of Nanotechnology, National Research Council
(CNR-NANOTEC), c/o Campus Ecotekne, via Monteroni, 73100Lecce, Italy
- Dipartimento
di Matematica e Fisica E. De Giorgi, University
of Salento, 73100Lecce, Italy
- Istituto
Nazionale di Fisica Nucleare (INFN), Sezione di Lecce, 73100Lecce, Italy
| | | | - Anil Chandra
- Institute
of Nanotechnology, National Research Council
(CNR-NANOTEC), c/o Campus Ecotekne, via Monteroni, 73100Lecce, Italy
| | - Saumya Prasad
- Institute
of Nanotechnology, National Research Council
(CNR-NANOTEC), c/o Campus Ecotekne, via Monteroni, 73100Lecce, Italy
| | - Amalia Azzariti
- IRCCS
Istituto Tumori Giovanni Paolo II, V.le O. Flacco, 65, 70124Bari, Italy
| | - Giuseppe Gigli
- Institute
of Nanotechnology, National Research Council
(CNR-NANOTEC), c/o Campus Ecotekne, via Monteroni, 73100Lecce, Italy
- Dipartimento
di Matematica e Fisica E. De Giorgi, University
of Salento, 73100Lecce, Italy
| | - Adriano Barra
- Dipartimento
di Matematica e Fisica E. De Giorgi, University
of Salento, 73100Lecce, Italy
- Istituto
Nazionale di Fisica Nucleare (INFN), Sezione di Lecce, 73100Lecce, Italy
| | - Andrea De Martino
- Politecnico
di Torino, Corso Duca degli Abruzzi, 24, I-10129Torino, Italy
- Italian Institute
for Genomic Medicine, IRCCS Candiolo, SP-142, I-10060Candiolo, Italy
| | - Daniele De Martino
- Biofisika
Institutua (UPV/EHU, CSIC) and Fundación Biofísica Bizkaia, LeioaE-48940, Spain
- Ikerbasque
Foundation, Bilbao48013, Spain
| | - Loretta L. del Mercato
- Institute
of Nanotechnology, National Research Council
(CNR-NANOTEC), c/o Campus Ecotekne, via Monteroni, 73100Lecce, Italy
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Elsadek NE, Nagah A, Ibrahim TM, Chopra H, Ghonaim GA, Emam SE, Cavalu S, Attia MS. Electrospun Nanofibers Revisited: An Update on the Emerging Applications in Nanomedicine. MATERIALS 2022; 15:ma15051934. [PMID: 35269165 PMCID: PMC8911671 DOI: 10.3390/ma15051934] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 01/31/2022] [Accepted: 02/08/2022] [Indexed: 02/06/2023]
Abstract
Electrospinning (ES) has become a straightforward and customizable drug delivery technique for fabricating drug-loaded nanofibers (NFs) using various biodegradable and non-biodegradable polymers. One of NF's pros is to provide a controlled drug release through managing the NF structure by changing the spinneret type and nature of the used polymer. Electrospun NFs are employed as implants in several applications including, cancer therapy, microbial infections, and regenerative medicine. These implants facilitate a unique local delivery of chemotherapy because of their high loading capability, wide surface area, and cost-effectiveness. Multi-drug combination, magnetic, thermal, and gene therapies are promising strategies for improving chemotherapeutic efficiency. In addition, implants are recognized as an effective antimicrobial drug delivery system overriding drawbacks of traditional antibiotic administration routes such as their bioavailability and dosage levels. Recently, a sophisticated strategy has emerged for wound healing by producing biomimetic nanofibrous materials with clinically relevant properties and desirable loading capability with regenerative agents. Electrospun NFs have proposed unique solutions, including pelvic organ prolapse treatment, viable alternatives to surgical operations, and dental tissue regeneration. Conventional ES setups include difficult-assembled mega-sized equipment producing bulky matrices with inadequate stability and storage. Lately, there has become an increasing need for portable ES devices using completely available off-shelf materials to yield highly-efficient NFs for dressing wounds and rapid hemostasis. This review covers recent updates on electrospun NFs in nanomedicine applications. ES of biopolymers and drugs is discussed regarding their current scope and future outlook.
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Affiliation(s)
- Nehal E. Elsadek
- Department of Pharmacokinetics and Biopharmaceutics, Institute of Biomedical Sciences, Tokushima University, 1-78-1 Sho-machi, Tokushima 770-8505, Japan;
| | - Abdalrazeq Nagah
- Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt; (A.N.); (G.A.G.)
| | - Tarek M. Ibrahim
- Department of Pharmaceutics, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt; (T.M.I.); (S.E.E.)
| | - Hitesh Chopra
- Chitkara College of Pharmacy, Chitkara University, Punjab 140401, India;
| | - Ghada A. Ghonaim
- Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt; (A.N.); (G.A.G.)
| | - Sherif E. Emam
- Department of Pharmaceutics, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt; (T.M.I.); (S.E.E.)
| | - Simona Cavalu
- Faculty of Medicine and Pharmacy, University of Oradea, P-ta 1 Decembrie 10, 410087 Oradea, Romania
- Correspondence: (S.C.); (M.S.A.)
| | - Mohamed S. Attia
- Department of Pharmaceutics, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt; (T.M.I.); (S.E.E.)
- Correspondence: (S.C.); (M.S.A.)
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Cheng Y, Zhang Y, Wu H. Polymeric Fibers as Scaffolds for Spinal Cord Injury: A Systematic Review. Front Bioeng Biotechnol 2022; 9:807533. [PMID: 35223816 PMCID: PMC8864123 DOI: 10.3389/fbioe.2021.807533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 12/16/2021] [Indexed: 11/30/2022] Open
Abstract
Spinal cord injury (SCI) is a complex neurological condition caused by trauma, inflammation, and other diseases, which often leads to permanent changes in strength and sensory function below the injured site. Changes in the microenvironment and secondary injuries continue to pose challenges for nerve repair and recovery after SCI. Recently, there has been progress in the treatment of SCI with the use of scaffolds for neural tissue engineering. Polymeric fibers fabricated by electrospinning have been increasingly used in SCI therapy owing to their biocompatibility, complex porous structure, high porosity, and large specific surface area. Polymer fibers simulate natural extracellular matrix of the nerve fiber and guide axon growth. Moreover, multiple channels of polymer fiber simulate the bundle of nerves. Polymer fibers with porous structure can be used as carriers loaded with drugs, nerve growth factors and cells. As conductive fibers, polymer fibers have electrical stimulation of nerve function. This paper reviews the fabrication, characterization, and application in SCI therapy of polymeric fibers, as well as potential challenges and future perspectives regarding their application.
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Affiliation(s)
- Yuanpei Cheng
- Department of Orthopeadics, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Yanbo Zhang
- Department of Orthopeadics, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Han Wu
- Department of Orthopeadics, China-Japan Union Hospital of Jilin University, Changchun, China
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8
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Maurya AK, Mias E, Schoeller J, Collings IE, Rossi RM, Dommann A, Neels A. Understanding multiscale structure-property correlations in PVDF-HFP electrospun fiber membranes by SAXS and WAXS. NANOSCALE ADVANCES 2022; 4:491-501. [PMID: 35178501 PMCID: PMC8765355 DOI: 10.1039/d1na00503k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 11/14/2021] [Indexed: 06/14/2023]
Abstract
Electrospinning is a versatile technique to produce nanofibrous membranes with applications in filtration, biosensing, biomedical and tissue engineering. The structural and therefore physical properties of electrospun fibers can be finely tuned by changing the electrospinning parameters. The large parameter window makes it challenging to optimize the properties of fibers for a specific application. Therefore, a fundamental understanding of the multiscale structure of fibers and its correlation with their macroscopic behaviors is required for the design and production of systems with dedicated applications. In this study, we demonstrate that the properties of poly(vinylidene fluoride-co-hexafluoro propylene) (PVDF-HFP) electrospun fibers can be tuned by changing the rotating drum speed used as a collector during electrospinning. Indeed, with the help of multiscale characterization techniques such as scanning electron microscopy (SEM), small-angle X-ray scattering (SAXS), and wide-angle X-ray scattering (WAXS), we observe that increasing the rotating drum speed not only aligns the fibers but also induces polymeric chain rearrangements at the molecular scale. Such changes result in enhanced mechanical properties and an increase of the piezoelectric β-phase of the PVDF-HFP fiber membranes. We detect nanostructural deformation behaviors when the aligned fibrous membrane is uniaxially stretched along the fiber alignment direction, while an increase in the alignment of the fibers is observed for randomly aligned samples. This was analyzed by performing in situ SAXS measurements coupled with uniaxial tensile loading of the fibrous membranes along the fiber alignment direction. The present study shows that fibrous membranes can be produced with varying degrees of fiber orientation, piezoelectric β-phase content, and mechanical properties by controlling the speed of the rotating drum collector during the fiber production. Such aligned fiber membranes have potential applications for neural or musculoskeletal tissue engineering.
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Affiliation(s)
- Anjani K Maurya
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Center for X-Ray Analytics Lerchenfeldstrasse 5 9014 St. Gallen Switzerland
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Biomimetic Membranes and Textiles Lerchenfeldstrasse 5 9014 St. Gallen Switzerland
- ARTORG Center for Biomedical Engineering Research, University of Bern Murtenstrasse 50 3008 Bern Switzerland
| | - Eloïse Mias
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Center for X-Ray Analytics Lerchenfeldstrasse 5 9014 St. Gallen Switzerland
| | - Jean Schoeller
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Biomimetic Membranes and Textiles Lerchenfeldstrasse 5 9014 St. Gallen Switzerland
- ETH Zürich, Department of Health Science and Technology 8092 Zürich Switzerland
| | - Ines E Collings
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Center for X-Ray Analytics Lerchenfeldstrasse 5 9014 St. Gallen Switzerland
| | - René M Rossi
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Biomimetic Membranes and Textiles Lerchenfeldstrasse 5 9014 St. Gallen Switzerland
- ETH Zürich, Department of Health Science and Technology 8092 Zürich Switzerland
| | - Alex Dommann
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Center for X-Ray Analytics Lerchenfeldstrasse 5 9014 St. Gallen Switzerland
- ARTORG Center for Biomedical Engineering Research, University of Bern Murtenstrasse 50 3008 Bern Switzerland
| | - Antonia Neels
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Center for X-Ray Analytics Lerchenfeldstrasse 5 9014 St. Gallen Switzerland
- Department of Chemistry, University of Fribourg Avenue de l'Europe 20 1700 Fribourg Switzerland
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Porous Bilayer Vascular Grafts Fabricated from Electrospinning of the Recombinant Human Collagen (RHC) Peptide-Based Blend. Polymers (Basel) 2021; 13:polym13224042. [PMID: 34833340 PMCID: PMC8619216 DOI: 10.3390/polym13224042] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Revised: 11/10/2021] [Accepted: 11/12/2021] [Indexed: 12/18/2022] Open
Abstract
Cardiovascular diseases, including coronary artery and peripheral vascular pathologies, are leading causes of mortality. As an alternative to autografts, prosthetic grafts have been developed to reduce the death rate. This study presents the development and characterization of bilayer vascular grafts with appropriate structural and biocompatibility properties. A polymer blend of recombinant human collagen (RHC) peptides and polycaprolactone (PCL) was used to build the inner layer of the graft by electrospinning and co-electrospinning the water-soluble polyethylene oxide (PEO) as sacrificial material together with PCL to generate the porous outer layer. The mechanical test demonstrated the bilayer scaffold’s appropriate mechanical properties as compared with the native vascular structure. Human umbilical vein endothelial cells (HUVEC) showed enhanced adhesion to the lumen after seeding on nanoscale fibers. Meanwhile, by enhancing the porosity of the microfibrous outer layer through the removal of PEO fibers, rat smooth muscle cells (A7r5) could proliferate and infiltrate the porous layer easily.
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10
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Arida IA, Ali IH, Nasr M, El-Sherbiny IM. Electrospun polymer-based nanofiber scaffolds for skin regeneration. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2021.102623] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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11
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Hot or cold: Bioengineering immune contextures into in vitro patient-derived tumor models. Adv Drug Deliv Rev 2021; 175:113791. [PMID: 33965462 DOI: 10.1016/j.addr.2021.05.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 05/02/2021] [Accepted: 05/04/2021] [Indexed: 02/06/2023]
Abstract
In the past decade, immune checkpoint inhibitors (ICI) have proven to be tremendously effective for a subset of cancer patients. However, it is difficult to predict the response of individual patients and efforts are now directed at understanding the mechanisms of ICI resistance. Current models of patient tumors poorly recapitulate the immune contexture, which describe immune parameters that are associated with patient survival. In this Review, we discuss parameters that influence the induction of different immune contextures found within tumors and how engineering strategies may be leveraged to recapitulate these contextures to develop the next generation of immune-competent patient-derived in vitro models.
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12
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Electrospun Nanofibrous Membranes for Tissue Engineering and Cell Growth. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11156929] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
In biotechnology, the field of cell cultivation is highly relevant. Cultivated cells can be used, for example, for the development of biopharmaceuticals and in tissue engineering. Commonly, mammalian cells are grown in bioreactors, T-flasks, well plates, etc., without a specific substrate. Nanofibrous mats, however, have been reported to promote cell growth, adhesion, and proliferation. Here, we give an overview of the different attempts at cultivating mammalian cells on electrospun nanofiber mats for biotechnological and biomedical purposes. Starting with a brief overview of the different electrospinning methods, resulting in random or defined fiber orientations in the nanofiber mats, we describe the typical materials used in cell growth applications in biotechnology and tissue engineering. The influence of using different surface morphologies and polymers or polymer blends on the possible application of such nanofiber mats for tissue engineering and other biotechnological applications is discussed. Polymer blends, in particular, can often be used to reach the required combination of mechanical and biological properties, making such nanofiber mats highly suitable for tissue engineering and other biotechnological or biomedical cell growth applications.
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13
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Sarabiyan Nejad S, Razzaghi D, Rezaei M, Bagheri M, Babaie A, Abbasi F. Preparation and characterization of electrospun shape memory polyurethane/graphene quantum dot nanocomposite scaffolds for tissue engineering. INT J POLYM MATER PO 2021. [DOI: 10.1080/00914037.2021.1941954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Sanaz Sarabiyan Nejad
- Chemistry Department, Science Faculty, Azarbaijan Shahid Madani University, Tabriz, Iran
| | - Donya Razzaghi
- Faculty of Polymer Engineering, Institute of Polymeric Materials, Sahand University of Technology, Tabriz, Iran
| | - Mostafa Rezaei
- Faculty of Polymer Engineering, Institute of Polymeric Materials, Sahand University of Technology, Tabriz, Iran
| | - Massuomeh Bagheri
- Chemistry Department, Science Faculty, Azarbaijan Shahid Madani University, Tabriz, Iran
| | - Amin Babaie
- Faculty of Polymer Engineering, Institute of Polymeric Materials, Sahand University of Technology, Tabriz, Iran
| | - Farhang Abbasi
- Faculty of Polymer Engineering, Institute of Polymeric Materials, Sahand University of Technology, Tabriz, Iran
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14
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Mahmoud NN, Qabooq H, Alsotari S, Tarawneh OA, Aboalhaija NH, Shraim S, Alkilany AM, Khalil EA, Abu-Dahab R. Quercetin-gold nanorods incorporated into nanofibers: development, optimization and cytotoxicity. RSC Adv 2021; 11:19956-19966. [PMID: 35479887 PMCID: PMC9033756 DOI: 10.1039/d1ra02004h] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Accepted: 05/24/2021] [Indexed: 01/19/2023] Open
Abstract
Herein, a polymeric nanofiber scaffold loaded with Quercetin (Quer)–gold nanorods (GNR) was developed and characterized. Several parameters related to loading Quer into GNR, incorporating the GNR-Quer into polymeric solutions, and fabricating the nanofibers by electrospinning were optimized. GNR-Quer loaded into a polymeric mixture of poly(lactic-co-glycolic acid) (PLGA) (21%) and poloxamer 407 (23%) has produced intact GNR-Quer-nanofibers with enhanced physical and mechanical properties. GNR-Quer-nanofibers demonstrated a slow pattern of Quer release over time compared to nanofibers free of GNR-Quer. Dynamic mechanical thermal analysis (DMTA) revealed enhanced uniformity and homogeneity of the GNR-Quer-nanofibers. GNR-Quer-nanofibers demonstrated a high ability to retain water upon incubation in phosphate buffer saline (PBS) for 24 h compared to nanofibers free of GNR-Quer. A cellular toxicity study indicated that the average cellular viability of human dermal fibroblasts was 76% after 24 h of exposure to the nanofibers containing a low concentration of GNR-Quer. Incorporating GNR-Quer into a mixture of 21% PLGA LMWT and 23% poloxamer 407 produced smooth, intact and uniform electrospun nanofibers with enhanced mechanical properties and hydration potential.![]()
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Affiliation(s)
- Nouf N Mahmoud
- Faculty of Pharmacy, Al-Zaytoonah University of Jordan Amman 11733 Jordan
| | - Haneen Qabooq
- Faculty of Pharmacy, Al-Zaytoonah University of Jordan Amman 11733 Jordan
| | - Shrouq Alsotari
- Cell Therapy Center, The University of Jordan Amman 11942 Jordan
| | - Ola A Tarawneh
- Faculty of Pharmacy, Al-Zaytoonah University of Jordan Amman 11733 Jordan
| | - Nour H Aboalhaija
- Faculty of Pharmacy, Al-Zaytoonah University of Jordan Amman 11733 Jordan
| | - Sawsan Shraim
- Faculty of Pharmacy, Al-Zaytoonah University of Jordan Amman 11733 Jordan
| | | | - Enam A Khalil
- School of Pharmacy, The University of Jordan Amman 11942 Jordan
| | - Rana Abu-Dahab
- School of Pharmacy, The University of Jordan Amman 11942 Jordan
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15
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Taskin MB, Ahmad T, Wistlich L, Meinel L, Schmitz M, Rossi A, Groll J. Bioactive Electrospun Fibers: Fabrication Strategies and a Critical Review of Surface-Sensitive Characterization and Quantification. Chem Rev 2021; 121:11194-11237. [DOI: 10.1021/acs.chemrev.0c00816] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Mehmet Berat Taskin
- Department of Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute, University of Würzburg, 97070 Würzburg, Germany
| | - Taufiq Ahmad
- Department of Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute, University of Würzburg, 97070 Würzburg, Germany
| | - Laura Wistlich
- Department of Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute, University of Würzburg, 97070 Würzburg, Germany
| | - Lorenz Meinel
- Institute of Pharmacy and Food Chemistry and Helmholtz Institute for RNA Based Infection Research, 97074 Würzburg, Germany
| | - Michael Schmitz
- Department of Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute, University of Würzburg, 97070 Würzburg, Germany
| | - Angela Rossi
- Department of Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute, University of Würzburg, 97070 Würzburg, Germany
| | - Jürgen Groll
- Department of Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute, University of Würzburg, 97070 Würzburg, Germany
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16
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Homaeigohar S, Monavari M, Koenen B, Boccaccini AR. Biomimetic biohybrid nanofibers containing bovine serum albumin as a bioactive moiety for wound dressing. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 123:111965. [PMID: 33812593 DOI: 10.1016/j.msec.2021.111965] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 02/06/2021] [Accepted: 02/08/2021] [Indexed: 12/13/2022]
Abstract
For the first time, a biohybrid nanofibrous wound dressing is developed via green electrospinning of a blend solution of bovine serum albumin (BSA) (1 and 3 wt%) and polycaprolactone (PCL). In such a system, the components are miscible and interact through hydrogen bonding between the carbonyl group of PCL and the amine group of BSA, as verified by ATR-FTIR. As a result, the biohybrid nanofibers show a superior elastic modulus and elongation (300% and 58%, respectively) compared with the neat PCL nanofibers. The included protein induces a hydrophilicity effect to the PCL nanofibers, notably at the higher BSA content (3 wt%). In contrast to the neat nanofibers, the biohybrid ones are bioactive and encourage formation of biominerals (made of amorphous calcium carbonate) on the surface, after immersion in simulated body fluid (SBF). Based on the WST-8 cell viability tests, NIH3T3 fibroblast cells were seen to properly interact with the biohybrid mats and to proliferate in their proximity. SEM images show that the cells largely adhere onto such nanofibers even more than they do on the neat ones and adopt a flattened and stretched shape. In addition, the live/dead assay and phalloidin/DAPI staining assay confirm large cell viability and normal cell morphology on the biohybrid nanofiber mats after 4 days incubation. Taken together, BSA/PCL nanofibers are able to offer optimum mechanical properties (elasticity) as well as mineralization which can potentially stimulate the wound healing process, and can be considered a suitable candidate for wound dressing applications.
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Affiliation(s)
- Shahin Homaeigohar
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, 91058 Erlangen, Germany; School of Science and Engineering, University of Dundee, Dundee DD1 4HN, United Kingdom.
| | - Mahshid Monavari
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, 91058 Erlangen, Germany
| | - Benedict Koenen
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, 91058 Erlangen, Germany
| | - Aldo R Boccaccini
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, 91058 Erlangen, Germany
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17
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Hersh J, Broyles D, Capcha JMC, Dikici E, Shehadeh LA, Daunert S, Deo S. Peptide-Modified Biopolymers for Biomedical Applications. ACS APPLIED BIO MATERIALS 2021; 4:229-251. [PMID: 34250454 PMCID: PMC8267604 DOI: 10.1021/acsabm.0c01145] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Polymeric biomaterials have been used in a variety of applications, like cargo delivery and tissue scaffolding, because they are easily synthesized and can be adapted to many systems. However, there is still a need to further enhance and improve their functions to progress their use in the biomedical field. A promising solution is to modify the polymer surfaces with peptides that can increase biocompatibility, cellular interactions, and receptor targeting. In recent years, peptide modifications have been used to overcome many challenges to polymer biomaterial development. This review discusses recent progress in developing peptide-modified polymers for therapeutic applications including cell-specific targeting and tissue engineering. Furthermore, we will explore some of the most frequently studied base components of these biomaterials.
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Affiliation(s)
- Jessica Hersh
- Department of Biochemistry and Molecular Biology, University of Miami Leonard M. Miller School of Medicine, Miami, Florida 33136, United States
| | - David Broyles
- Department of Biochemistry and Molecular Biology, University of Miami Leonard M. Miller School of Medicine, Miami, Florida 33136, United States
| | - José Manuel Condor Capcha
- Interdisciplinary Stem Cell Institute and Division of Cardiology, Department of Medicine, University of Miami Leonard M. Miller School of Medicine, Miami, Florida 33136, United States
| | - Emre Dikici
- Department of Biochemistry and Molecular Biology, University of Miami Leonard M. Miller School of Medicine, Miami, Florida 33136, United States
| | - Lina A Shehadeh
- Interdisciplinary Stem Cell Institute and Division of Cardiology, Department of Medicine, University of Miami Leonard M. Miller School of Medicine, Miami, Florida 33136, United States
| | - Sylvia Daunert
- Department of Biochemistry and Molecular Biology, University of Miami Leonard M. Miller School of Medicine, Miami, Florida 33136, United States
| | - Sapna Deo
- Department of Biochemistry and Molecular Biology, University of Miami Leonard M. Miller School of Medicine, Miami, Florida 33136, United States
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18
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Topcu B, Gultekinoglu M, Timur SS, Eroglu I, Ulubayram K, Eroglu H. Current approaches and future prospects of nanofibers: a special focus on antimicrobial drug delivery. J Drug Target 2021; 29:563-575. [PMID: 33345641 DOI: 10.1080/1061186x.2020.1867991] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Antibacterial nanofibers have a great potential for effective treatment of infections. They act as drug reservoir systems that release higher quantities of antibacterial agents/drug in a controlled manner at infection sites and prevent drug resistance, while concomitantly decreasing the systemic toxicity. With this drug delivery system, it is also possible to achieve multiple drug entrapment and also simultaneous or sequential release kinetics at the site of action. Therefore, advances in antibacterial nanofibers as drug delivery systems were overviewed within this article. Recently published data on antibacterial drug delivery was also summarised to provide a view of the current state of art in this field. Although antibacterial use seems to be limited and one can ask that 'what is left to be discovered?'; recent update literatures in this field highlighted the use of nanofibers from very different perspectives. We believe that readers will be benefiting this review for enlightening of novel ideas.
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Affiliation(s)
- Betul Topcu
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
| | - Merve Gultekinoglu
- Department of Basic Pharmaceutical Sciences, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
| | - Selin Seda Timur
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
| | - Ipek Eroglu
- Department of Basic Pharmaceutical Sciences, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
| | - Kezban Ulubayram
- Department of Basic Pharmaceutical Sciences, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey.,Department of Nanotechnology and Nanomedicine, Institute of Graduate Studies in Science and Engineering, Ankara, Turkey.,Department of Bioengineering, Institute of Graduate Studies in Science and Engineering, Hacettepe University, Ankara, Turkey
| | - Hakan Eroglu
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
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19
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Eckhart KE, Schmidt SJ, Starvaggi FA, Wolf ME, Vickery WM, Sydlik SA. Peptide- and Protein-Graphene Oxide Conjugate Materials for Controlling Mesenchymal Stem Cell Fate. REGENERATIVE ENGINEERING AND TRANSLATIONAL MEDICINE 2020. [DOI: 10.1007/s40883-020-00182-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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20
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Amores de Sousa MC, Rodrigues CAV, Ferreira IAF, Diogo MM, Linhardt RJ, Cabral JMS, Ferreira FC. Functionalization of Electrospun Nanofibers and Fiber Alignment Enhance Neural Stem Cell Proliferation and Neuronal Differentiation. Front Bioeng Biotechnol 2020; 8:580135. [PMID: 33195141 PMCID: PMC7649414 DOI: 10.3389/fbioe.2020.580135] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Accepted: 09/24/2020] [Indexed: 01/29/2023] Open
Abstract
Neural stem cells (NSCs) have the potential to generate the cells of the nervous system and, when cultured on nanofiber scaffolds, constitute a promising approach for neural tissue engineering. In this work, the impact of combining nanofiber alignment with functionalization of the electrospun poly-ε-caprolactone (PCL) nanofibers with biological adhesion motifs on the culture of an NSC line (CGR8-NS) is evaluated. A five-rank scale for fiber density was introduced, and a 4.5 level, corresponding to 70–80% fiber density, was selected for NSC in vitro culture. Aligned nanofibers directed NSC distribution and, especially in the presence of laminin (PCL-LN) and the RGD-containing peptide GRGDSP (PCL-RGD), promoted higher cell elongation, quantified by the eccentricity and axis ratio. In situ differentiation resulted in relatively higher percentage of cells expressing Tuj1 in PCL-LN, as well as significantly longer neurite development (41.1 ± 1.0 μm) than PCL-RGD (32.0 ± 1.0 μm), pristine PCL (25.1 ± 1.2 μm), or PCL-RGD randomly oriented fibers (26.5 ± 1.4 μm), suggesting that the presence of LN enhances neuronal differentiation. This study demonstrates that aligned nanofibers, functionalized with RGD, perform as well as PCL-LN fibers in terms of cell adhesion and proliferation. The presence of the full LN protein improves neuronal differentiation outcomes, which may be important for the use of this system in tissue engineering applications.
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Affiliation(s)
- Miriam C Amores de Sousa
- Institute for Bioengineering and Biosciences, Department of Bioengineering, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
| | - Carlos A V Rodrigues
- Institute for Bioengineering and Biosciences, Department of Bioengineering, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
| | - Inês A F Ferreira
- Institute for Bioengineering and Biosciences, Department of Bioengineering, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
| | - Maria Margarida Diogo
- Institute for Bioengineering and Biosciences, Department of Bioengineering, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
| | - Robert J Linhardt
- Center for Biotechnology and Interdisciplinary Studies, Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, Troy, NY, United States
| | - Joaquim M S Cabral
- Institute for Bioengineering and Biosciences, Department of Bioengineering, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
| | - Frederico Castelo Ferreira
- Institute for Bioengineering and Biosciences, Department of Bioengineering, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
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21
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Ghane N, Khalili S, Nouri Khorasani S, Esmaeely Neisiany R, Das O, Ramakrishna S. Regeneration of the peripheral nerve via multifunctional electrospun scaffolds. J Biomed Mater Res A 2020; 109:437-452. [PMID: 32856425 DOI: 10.1002/jbm.a.37092] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 08/18/2020] [Accepted: 08/25/2020] [Indexed: 12/12/2022]
Abstract
Over the last two decades, electrospun scaffolds have proved to be advantageous in the field of nerve tissue regeneration by connecting the cavity among the proximal and distal nerve stumps growth cones and leading to functional recovery after injury. Multifunctional nanofibrous structure of these scaffolds provides enormous potential by combining the advantages of nano-scale topography, and biological science. In these structures, selecting the appropriate materials, designing an optimized structure, modifying the surface to enhance biological functions and neurotrophic factors loading, and native cell-like stem cells should be considered as the essential factors. In this systematic review paper, the fabrication methods for the preparation of aligned nanofibrous scaffolds in yarn or conduit architecture are reviewed. Subsequently, the utilized polymeric materials, including natural, synthetic and blend are presented. Finally, their surface modification techniques, as well as, the recent advances and outcomes of the scaffolds, both in vitro and in vivo, are reviewed and discussed.
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Affiliation(s)
- Nazanin Ghane
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan, Iran
| | - Shahla Khalili
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan, Iran
| | | | - Rasoul Esmaeely Neisiany
- Department of Materials and Polymer Engineering, Faculty of Engineering, Hakim Sabzevari University, Sabzevar, Iran
| | - Oisik Das
- Department of Engineering Sciences and Mathematics, Luleå University of Technology, Luleå, Sweden
| | - Seeram Ramakrishna
- Centre for Nanofibers and Nanotechnology, Department of Mechanical Engineering, Faculty of Engineering, Singapore, Singapore
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22
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Zhao J, Santino F, Giacomini D, Gentilucci L. Integrin-Targeting Peptides for the Design of Functional Cell-Responsive Biomaterials. Biomedicines 2020; 8:E307. [PMID: 32854363 PMCID: PMC7555639 DOI: 10.3390/biomedicines8090307] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 08/21/2020] [Accepted: 08/23/2020] [Indexed: 01/17/2023] Open
Abstract
Integrins are a family of cell surface receptors crucial to fundamental cellular functions such as adhesion, signaling, and viability, deeply involved in a variety of diseases, including the initiation and progression of cancer, of coronary, inflammatory, or autoimmune diseases. The natural ligands of integrins are glycoproteins expressed on the cell surface or proteins of the extracellular matrix. For this reason, short peptides or peptidomimetic sequences that reproduce the integrin-binding motives have attracted much attention as potential drugs. When challenged in clinical trials, these peptides/peptidomimetics let to contrasting and disappointing results. In the search for alternative utilizations, the integrin peptide ligands have been conjugated onto nanoparticles, materials, or drugs and drug carrier systems, for specific recognition or delivery of drugs to cells overexpressing the targeted integrins. Recent research in peptidic integrin ligands is exploring new opportunities, in particular for the design of nanostructured, micro-fabricated, cell-responsive, stimuli-responsive, smart materials.
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Affiliation(s)
| | | | | | - Luca Gentilucci
- Department of Chemistry “G. Ciamician”, University of Bologna, via Selmi 2, 40126 Bologna, Italy; (J.Z.); (F.S.); (D.G.)
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23
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Rowley AT, Meli VS, Wu-Woods NJ, Chen EY, Liu WF, Wang SW. Effects of Surface-Bound Collagen-Mimetic Peptides on Macrophage Uptake and Immunomodulation. Front Bioeng Biotechnol 2020; 8:747. [PMID: 32719788 PMCID: PMC7348040 DOI: 10.3389/fbioe.2020.00747] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 06/11/2020] [Indexed: 11/13/2022] Open
Abstract
The interaction between collagen/collagen-like peptides and the commonly expressed immune cell receptor LAIR-1 (leukocyte-associated immunoglobulin-like receptor-1) regulates and directs immune responses throughout the body. Understanding and designing these interactions within the context of biomaterials could advance the development of materials used in medical applications. In this study, we investigate the immunomodulatory effects of biomaterials engineered to display a human collagen III-derived ligand peptide (LAIR1-LP) that targets LAIR-1. Specifically, we examine the effects of LAIR1-LP functionalized surfaces on uptake of polymeric particles and cell debris by macrophages polarized toward inflammatory or healing phenotypes. We observed that culture of macrophages on LAIR1-LP functionalized surfaces increased their uptake of PLGA micro- and nano-particles, as well as apoptotic fibroblasts, while reducing their secretion of TNFα in response to LPS/IFNγ pro-inflammatory stimulation, when compared to cells seeded on control surfaces. To investigate the role of LAIR-1 in the observed LAIR1-LP-induced effects, we used siRNA to knock down LAIR-1 expression and found that cells lacking LAIR-1 exhibited enhanced particle uptake on LAIR1-LP and control surfaces. Furthermore, analysis of gene expression showed that LAIR-1 knockdown led to increase expression of other receptors involved in cell uptake, including CD-36, SRA-1, and beta-2 integrin. Together, our study suggests that LAIR1-LP enhances macrophage uptake potentially through interactions with collagen-domain binding surface receptors, and inhibits inflammation through interaction with LAIR-1.
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Affiliation(s)
- Andrew T Rowley
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, Irvine, CA, United States
| | - Vijaykumar S Meli
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, Irvine, CA, United States.,Department of Biomedical Engineering, University of California, Irvine, Irvine, CA, United States
| | - Natalie J Wu-Woods
- Department of Materials Science and Engineering, University of California, Irvine, Irvine, CA, United States
| | - Esther Y Chen
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, Irvine, CA, United States
| | - Wendy F Liu
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, Irvine, CA, United States.,Department of Biomedical Engineering, University of California, Irvine, Irvine, CA, United States.,The Edwards Lifesciences Center for Advanced Cardiovascular Technology, University of California, Irvine, Irvine, CA, United States
| | - Szu-Wen Wang
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, Irvine, CA, United States.,Department of Biomedical Engineering, University of California, Irvine, Irvine, CA, United States
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24
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Homaeigohar S, Tsai TY, Zarie ES, Elbahri M, Young TH, Boccaccini AR. Bovine Serum Albumin (BSA)/polyacrylonitrile (PAN) biohybrid nanofibers coated with a biomineralized calcium deficient hydroxyapatite (HA) shell for wound dressing. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 116:111248. [PMID: 32806254 DOI: 10.1016/j.msec.2020.111248] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Revised: 06/29/2020] [Accepted: 06/29/2020] [Indexed: 01/14/2023]
Abstract
Here, for the first time, a nanofibrous (NF) wound dressing comprising biomineralized polyacrylonitrile (PAN) nanofibers is developed. In contrast to the majority of the currently available nanofibrous wound dressings that are based on natural polymers, PAN is a synthetic, industrial polymer, which has been rarely considered for this purpose. PAN NFs are first hydrolyzed to allow for tethering of biofunctional agents (here Bovine Serum Albumin (BSA)). Later, the biofunctionlized PAN NFs are biomineralized by immersion in simulated body fluid (SBF). As a result, core-shell, calcium deficient hydroxyapatite (HA)/BSA/PAN nanofibers form, that are mechanically stronger (elastic modulus; 8.5 vs. 6 MPa) compared to the untreated PAN NFs. The biomineralized PAN NFs showed promising bioactivity as reflected in the cell biology tests with fibroblast and keratinocyte cells. Hs68 fibroblasts and HaCat keratinocytes were found to be more viable in the presence of the biomineralized NFs than when they were co-cultured with the neat PAN NFs. Such mechanical and biological characteristics of the biomineralized PAN NFs are favorable for wound dressing applications.
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Affiliation(s)
- Shahin Homaeigohar
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, 91058, Erlangen, Germany; Nanochemistry and Nanoengineering, Department of Chemistry and Materials Science, School of Chemical Engineering, Aalto University, Kemistintie 1, 00076 Aalto, Finland.
| | - Ting-Yu Tsai
- Institute of Biomedical Engineering, College of Medicine and College of Engineering, National Taiwan University, Taipei 100, Taiwan
| | - Eman S Zarie
- Nanochemistry and Nanoengineering, Department of Chemistry and Materials Science, School of Chemical Engineering, Aalto University, Kemistintie 1, 00076 Aalto, Finland; Department of Therapeutical Chemistry, Pharmaceutical and Drug Industries Research Division National Research Centre, Dokki 12311, Giza, Egypt
| | - Mady Elbahri
- Nanochemistry and Nanoengineering, Department of Chemistry and Materials Science, School of Chemical Engineering, Aalto University, Kemistintie 1, 00076 Aalto, Finland
| | - Tai-Horng Young
- Nanochemistry and Nanoengineering, Department of Chemistry and Materials Science, School of Chemical Engineering, Aalto University, Kemistintie 1, 00076 Aalto, Finland
| | - Aldo R Boccaccini
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, 91058, Erlangen, Germany
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25
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Yao T, Baker MB, Moroni L. Strategies to Improve Nanofibrous Scaffolds for Vascular Tissue Engineering. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E887. [PMID: 32380699 PMCID: PMC7279151 DOI: 10.3390/nano10050887] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 04/19/2020] [Accepted: 04/24/2020] [Indexed: 12/25/2022]
Abstract
The biofabrication of biomimetic scaffolds for tissue engineering applications is a field in continuous expansion. Of particular interest, nanofibrous scaffolds can mimic the mechanical and structural properties (e.g., collagen fibers) of the natural extracellular matrix (ECM) and have shown high potential in tissue engineering and regenerative medicine. This review presents a general overview on nanofiber fabrication, with a specific focus on the design and application of electrospun nanofibrous scaffolds for vascular regeneration. The main nanofiber fabrication approaches, including self-assembly, thermally induced phase separation, and electrospinning are described. We also address nanofibrous scaffold design, including nanofiber structuring and surface functionalization, to improve scaffolds' properties. Scaffolds for vascular regeneration with enhanced functional properties, given by providing cells with structural or bioactive cues, are discussed. Finally, current in vivo evaluation strategies of these nanofibrous scaffolds are introduced as the final step, before their potential application in clinical vascular tissue engineering can be further assessed.
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Affiliation(s)
| | | | - Lorenzo Moroni
- Complex Tissue Regeneration Department, MERLN Institute for Technology Inspired Regenerative Medicine, Universiteitssingel 40, 6229ER Maastricht, The Netherlands; (T.Y.); (M.B.B.)
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26
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Song KH, Heo SJ, Peredo AP, Davidson MD, Mauck RL, Burdick JA. Influence of Fiber Stiffness on Meniscal Cell Migration into Dense Fibrous Networks. Adv Healthc Mater 2020; 9:e1901228. [PMID: 31867881 PMCID: PMC7274873 DOI: 10.1002/adhm.201901228] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 11/18/2019] [Indexed: 02/04/2023]
Abstract
Fibrous scaffolds fabricated via electrospinning are being explored to repair injuries within dense connective tissues. However, there is still much to be understood regarding the appropriate scaffold properties that best support tissue repair. In this study, the influence of the stiffness of electrospun fibers on cell invasion into fibrous scaffolds is investigated. Specifically, soft and stiff electrospun fibrous networks are fabricated from crosslinked methacrylated hyaluronic acid (MeHA), where the stiffness is altered via the extent of MeHA crosslinking. Meniscal fibrochondrocyte (MFC) adhesion and migration into fibrous networks are investigated, where the softer MeHA fibrous networks are easily deformed and densified through cellular tractions and the stiffer MeHA fibrous networks support ≈50% greater MFC invasion over weeks when placed adjacent to meniscal tissue. When the scaffolds are sandwiched between meniscal tissues and implanted subcutaneously, the stiffer MeHA fibrous networks again support enhanced cellular invasion and greater collagen deposition after 4 weeks when compared to the softer MeHA fibrous networks. These results indicate that the mechanics and deformability of fibrous networks likely alter cellular interactions and invasion, providing an important design parameter toward the engineering of scaffolds for tissue repair.
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Affiliation(s)
- Kwang Hoon Song
- Department of Bioengineering, University of Pennsylvania, 210 South 33rd Street, Philadelphia, PA, 19104, USA
- Center for Engineering Mechanobiology, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Su-Jin Heo
- Center for Engineering Mechanobiology, University of Pennsylvania, Philadelphia, PA, 19104, USA
- McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
- Translational Musculoskeletal Research Center, Corporal Michael J. Crescenz VA Medical Center, Philadelphia, PA, 19104, USA
| | - Ana P Peredo
- Department of Bioengineering, University of Pennsylvania, 210 South 33rd Street, Philadelphia, PA, 19104, USA
- Center for Engineering Mechanobiology, University of Pennsylvania, Philadelphia, PA, 19104, USA
- McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
- Translational Musculoskeletal Research Center, Corporal Michael J. Crescenz VA Medical Center, Philadelphia, PA, 19104, USA
| | - Matthew D Davidson
- Department of Bioengineering, University of Pennsylvania, 210 South 33rd Street, Philadelphia, PA, 19104, USA
- Center for Engineering Mechanobiology, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Robert L Mauck
- Department of Bioengineering, University of Pennsylvania, 210 South 33rd Street, Philadelphia, PA, 19104, USA
- Center for Engineering Mechanobiology, University of Pennsylvania, Philadelphia, PA, 19104, USA
- McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, 19104, USA
- Translational Musculoskeletal Research Center, Corporal Michael J. Crescenz VA Medical Center, Philadelphia, PA, 19104, USA
| | - Jason A Burdick
- Department of Bioengineering, University of Pennsylvania, 210 South 33rd Street, Philadelphia, PA, 19104, USA
- Center for Engineering Mechanobiology, University of Pennsylvania, Philadelphia, PA, 19104, USA
- Translational Musculoskeletal Research Center, Corporal Michael J. Crescenz VA Medical Center, Philadelphia, PA, 19104, USA
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27
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Townsend JM, Hukill ME, Fung KM, Ohst DG, Johnson JK, Weatherly RA, Detamore MS. Biodegradable electrospun patch containing cell adhesion or antimicrobial compounds for trachea repair in vivo. Biomed Mater 2020; 15:025003. [PMID: 31791031 PMCID: PMC7065275 DOI: 10.1088/1748-605x/ab5e1b] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Difficulty breathing due to tracheal stenosis (i.e. narrowed airway) diminishes the quality of life and can potentially be life-threatening. Tracheal stenosis can be caused by congenital anomalies, external trauma, infection, intubation-related injury, and tumors. Common treatment methods for tracheal stenosis requiring surgical intervention include end-to-end anastomosis, slide tracheoplasty and/or laryngotracheal reconstruction. Although the current methods have demonstrated promise for treatment of tracheal stenosis, a clear need exists for the development of new biomaterials that can hold the trachea open after the stenosed region has been surgically opened, and that can support healing without the need to harvest autologous tissue from the patient. The current study therefore evaluated the use of electrospun nanofiber scaffolds encapsulating 3D-printed PCL rings to patch induced defects in rabbit tracheas. The nanofibers were a blend of polycaprolactone (PCL) and polylactide-co-caprolactone (PLCL), and encapsulated either the cell adhesion peptide, RGD, or antimicrobial compound, ceragenin-131 (CSA). Blank PCL/PLCL and PCL were employed as control groups. Electrospun patches were evaluated in a rabbit tracheal defect model for 12 weeks, which demonstrated re-epithelialization of the luminal side of the defect. No significant difference in lumen volume was observed for the PCL/PLCL patches compared to the uninjured positive control. Only the RGD group did not lead to a significant decrease in the minimum cross-sectional area compared to the uninjured positive control. CSA reduced bacteria growth in vitro, but did not add clear value in vivo. Adequate tissue in-growth into the patches and minimal tissue overgrowth was observed inside the patch material. Areas of future investigation include tuning the material degradation time to balance cell adhesion and structural integrity.
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Affiliation(s)
- Jakob M. Townsend
- Stephenson School of Biomedical Engineering, University of Oklahoma, Norman, OK 73019
| | - Makenna E. Hukill
- Stephenson School of Biomedical Engineering, University of Oklahoma, Norman, OK 73019
| | - Kar-Ming Fung
- Department of Pathology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104
| | | | | | - Robert A. Weatherly
- Section of Otolaryngology, Department of Surgery, Children’s Mercy Hospital, Kansas City, MO, 64108
| | - Michael S. Detamore
- Stephenson School of Biomedical Engineering, University of Oklahoma, Norman, OK 73019
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28
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Shin YM, Yang HS, Chun HJ. Directional Cell Migration Guide for Improved Tissue Regeneration. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1249:131-140. [DOI: 10.1007/978-981-15-3258-0_9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
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29
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Ghane N, Beigi MH, Labbaf S, Nasr-Esfahani MH, Kiani A. Design of hydrogel-based scaffolds for the treatment of spinal cord injuries. J Mater Chem B 2020; 8:10712-10738. [DOI: 10.1039/d0tb01842b] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Hydrogel-based scaffold design approaches for the treatment of spinal cord injuries.
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Affiliation(s)
- Nazanin Ghane
- Department of Cellular Biotechnology Cell Science Research Center
- Royan Institute for Biotechnology
- ACECR
- Isfahan
- Iran
| | - Mohammad-Hossein Beigi
- Department of Cellular Biotechnology Cell Science Research Center
- Royan Institute for Biotechnology
- ACECR
- Isfahan
- Iran
| | - Sheyda Labbaf
- Biomaterials Research Group
- Department of Materials Engineering
- Isfahan University of Technology
- Isfahan
- Iran
| | | | - Amirkianoosh Kiani
- Silicon Hall: Micro/Nano Manufacturing Facility
- Faculty of Engineering and Applied Science
- Ontario Tech University
- Ontario
- Canada
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30
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Movahedi M, Asefnejad A, Rafienia M, Khorasani MT. Potential of novel electrospun core-shell structured polyurethane/starch (hyaluronic acid) nanofibers for skin tissue engineering: In vitro and in vivo evaluation. Int J Biol Macromol 2019; 146:627-637. [PMID: 31805327 DOI: 10.1016/j.ijbiomac.2019.11.233] [Citation(s) in RCA: 88] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 11/11/2019] [Accepted: 11/29/2019] [Indexed: 01/08/2023]
Abstract
The biomaterials with excellent biocompatibility and biodegradability ¬can lead to satisfactory wound healing. In this study, core-shell structured PU (polyurethane)/St (Starch) and PU/St (Hyaluronic Acid (HA)) nanofibers were fabricated with coaxial electrospinning technique. The morphology characterization of the core-shell structure of nanofibers was investigated by scanning electron microscopy (SEM) and transmission electron microscopy (TEM) images. Contact-angle measurements were confirmed the core/shell structure of the electrospun nanofibers with shell and core feed rates of 0.675 L/min and <0.135 L/min, respectively. The average fiber diameter values were calculated for polyurethane nanofibers (836 ± 172.13 nm), PU/St nanofibers (612 ± 93.21 nm) and PU/St (HA) nanofibers (428 ± 78.32 nm). The average porosity values of scaffolds were determined for PU (1.251 ± 0.235 μm), PU/St (1.734 ± 0.284 μm) and PU/St (HA) (3.186 ± 0.401 μm). The core-shell PU/St and PU/St (HA) nanofibers were evaluated in vitro by using mouse fibroblasts (L929) cells. Cell morphology and viability results were exhibited significant enhancement in cell promoting and cell attachment. Furthermore, in vivo studies was indicated Core-shell PU/St (HA) wound dressing can be an appropriate candidate for skin tissue engineering and wound healing.
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Affiliation(s)
- Mehdi Movahedi
- Biomedical Engineering (Biomaterials) Department, Islamic Azad University - Science and Research Branch, Tehran, Iran
| | - Azadeh Asefnejad
- Biomedical Engineering (Biomaterials) Department, Islamic Azad University - Science and Research Branch, Tehran, Iran.
| | - Mohammad Rafienia
- Department of Biomaterials, Tissue Engineering and Nanotechnology, School of Advanced Medical Technologies, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohammad Taghi Khorasani
- Biomaterial Department of Iran Polymer and Petrochemical Institute, P.O. Box 14965/159, Tehran, Iran
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31
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Kou L, Xiao S, Sun R, Bao S, Yao Q, Chen R. Biomaterial-engineered intra-articular drug delivery systems for osteoarthritis therapy. Drug Deliv 2019; 26:870-885. [PMID: 31524006 PMCID: PMC6758706 DOI: 10.1080/10717544.2019.1660434] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 08/19/2019] [Accepted: 08/22/2019] [Indexed: 12/14/2022] Open
Abstract
Osteoarthritis (OA) is a progressive and degenerative disease, which is no longer confined to the elderly. So far, current treatments are limited to symptom relief, and no valid OA disease-modifying drugs are available. Additionally, OA relative joint is challenging for drug delivery, since the drugs experience rapid clearance in joint, showing a poor bioavailability. Existing therapeutic drugs, like non-steroidal anti-inflammatory drugs (NSAIDs) and corticosteroids, are not conducive for long-term use due to adverse effects. Though supplementations, including chondroitin sulfate and glucosamine, have shown beneficial effects on joint tissues in OA, their therapeutic use is still debatable. New emerging agents, like Kartogenin (KGN) and Interleukin-1 receptor antagonist (IL-1 ra), without a proper formulation, still will not work. Therefore, it is urgent to establish a suitable and efficient drug delivery system for OA therapy. In this review, we pay attention to various types of drug delivery systems and potential therapeutic drugs that may escalate OA treatments.
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Affiliation(s)
- Longfa Kou
- Department of Pharmacy, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Shuyi Xiao
- Department of Pharmacy, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Rui Sun
- Department of Pharmacy, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Shihui Bao
- Department of Pharmacy, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Qing Yao
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Ruijie Chen
- Department of Pharmacy, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
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32
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Marins NH, Silva RM, Ferrua CP, Łukowiec D, Barbosa AM, Ribeiro JS, Nedel F, Zavareze ER, Tański T, Carreño NLV. Fabrication of electrospun poly(lactic acid) nanoporous membrane loaded with niobium pentoxide nanoparticles as a potential scaffold for biomaterial applications. J Biomed Mater Res B Appl Biomater 2019; 108:1559-1567. [PMID: 31617960 DOI: 10.1002/jbm.b.34503] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 08/19/2019] [Accepted: 09/22/2019] [Indexed: 12/16/2022]
Abstract
Tissue engineering aims to regenerate and restore damaged human organs and tissues using scaffolds that can mimic the native tissues. The requirement for modern and efficient biomaterials that are capable of accelerating the healing process has been considerably increased. In this work, a novel electrospun poly(lactic acid) (PLA) nanoporous membrane incorporated with niobium pentoxide nanoparticles (Nb2 O5 ) for biomaterial applications was developed. Nb2 O5 nanoparticles were obtained by microwave-assisted hydrothermal synthesis, and different concentrations (0, 1, 3, and 5% wt/wt) were tested. Chemical, morphological, mechanical, and biological properties of membranes were evaluated. Cell viability results demonstrated that the membranes presented nontoxic effects. The incorporation of Nb2 O5 improved cell proliferation without impairing the wettability, porosity, and mechanical properties of membranes. Membranes containing Nb2 O5 nanoparticles presented biocompatible properties with suitable porosity, which facilitated cell attachment and proliferation while allowing diffusion of oxygen and nutrients. This study has demonstrated that Nb2 O5 nanoparticle-loaded electrospun PLA nanoporous membranes are potential candidates for drug delivery and wound dressing applications.
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Affiliation(s)
- Natália H Marins
- Graduate Program in Materials Science and Engineering, Technology Development Center, Federal University of Pelotas, Pelotas, Brazil.,Institute of Engineering Materials and Biomaterials, Silesian University of Technology, Gliwice, Poland
| | - Ricardo M Silva
- Institute of Engineering Materials and Biomaterials, Silesian University of Technology, Gliwice, Poland.,Department of Materials Engineering, Federal University of São Carlos, São Carlos, Brazil
| | - Camila P Ferrua
- Graduate Program in Health and Behavior, Catholic University of Pelotas, Pelotas, Brazil
| | - Dariusz Łukowiec
- Institute of Engineering Materials and Biomaterials, Silesian University of Technology, Gliwice, Poland
| | - Ananda M Barbosa
- Graduate Program in Materials Science and Engineering, Technology Development Center, Federal University of Pelotas, Pelotas, Brazil
| | - Juliana S Ribeiro
- Graduate Program in Dentistry, Federal University of Pelotas, Pelotas, Brazil
| | - Fernanda Nedel
- Graduate Program in Health and Behavior, Catholic University of Pelotas, Pelotas, Brazil
| | - Elessandra R Zavareze
- Department of Agroindustrial Science and Technology, Federal University of Pelotas, Pelotas, Brazil
| | - Tomasz Tański
- Institute of Engineering Materials and Biomaterials, Silesian University of Technology, Gliwice, Poland
| | - Neftalí L V Carreño
- Graduate Program in Materials Science and Engineering, Technology Development Center, Federal University of Pelotas, Pelotas, Brazil
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33
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Baldwin M, Snelling S, Dakin S, Carr A. Augmenting endogenous repair of soft tissues with nanofibre scaffolds. J R Soc Interface 2019; 15:rsif.2018.0019. [PMID: 29695606 DOI: 10.1098/rsif.2018.0019] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Accepted: 04/04/2018] [Indexed: 12/21/2022] Open
Abstract
As our ability to engineer nanoscale materials has developed we can now influence endogenous cellular processes with increasing precision. Consequently, the use of biomaterials to induce and guide the repair and regeneration of tissues is a rapidly developing area. This review focuses on soft tissue engineering, it will discuss the types of biomaterial scaffolds available before exploring physical, chemical and biological modifications to synthetic scaffolds. We will consider how these properties, in combination, can provide a precise design process, with the potential to meet the requirements of the injured and diseased soft tissue niche. Finally, we frame our discussions within clinical trial design and the regulatory framework, the consideration of which is fundamental to the successful translation of new biomaterials.
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Affiliation(s)
- Mathew Baldwin
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Sarah Snelling
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Stephanie Dakin
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Andrew Carr
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
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34
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Son YJ, Tse JW, Zhou Y, Mao W, Yim EKF, Yoo HS. Biomaterials and controlled release strategy for epithelial wound healing. Biomater Sci 2019; 7:4444-4471. [PMID: 31436261 DOI: 10.1039/c9bm00456d] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The skin and cornea are tissues that provide protective functions. Trauma and other environmental threats often cause injuries, infections and damage to these tissues, where the degree of injury is directly correlated to the recovery time. For example, a superficial skin or corneal wound may recover within days; however, more severe injuries can last up to several months and may leave scarring. Thus, therapeutic strategies have been introduced to enhance the wound healing efficiency and quality. Although the skin and cornea share similar anatomic structures and wound healing process, therapeutic agents and formulations for skin and cornea wound healing differ in accordance with the tissue and wound type. In this review, we describe the anatomy and epithelial wound healing processes of the skin and cornea, and summarize the therapeutic molecules that are beneficial to the respective regeneration process. In addition, biomaterial scaffolds that inherently possess bioactive properties or modified with therapeutic molecules for topical controlled release and enhanced wound healing efficiency are also discussed.
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Affiliation(s)
- Young Ju Son
- Department of Biomedical Materials Engineering, Kangwon National University, Chuncheon, 24341, Republic of Korea.
| | - John W Tse
- Department of Chemical Engineering, University of Waterloo, Waterloo, ON, Canada N2L 3G1.
| | - Yiran Zhou
- Department of Chemical Engineering, University of Waterloo, Waterloo, ON, Canada N2L 3G1.
| | - Wei Mao
- Department of Biomedical Materials Engineering, Kangwon National University, Chuncheon, 24341, Republic of Korea.
| | - Evelyn K F Yim
- Department of Chemical Engineering, University of Waterloo, Waterloo, ON, Canada N2L 3G1.
| | - Hyuk Sang Yoo
- Department of Biomedical Materials Engineering, Kangwon National University, Chuncheon, 24341, Republic of Korea. and Institute of Bioscience and Biotechnology, Kangwon National University, Republic of Korea
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35
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Liu R, Hudalla GA. Using Self-Assembling Peptides to Integrate Biomolecules into Functional Supramolecular Biomaterials. Molecules 2019; 24:E1450. [PMID: 31013712 PMCID: PMC6514692 DOI: 10.3390/molecules24081450] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 03/27/2019] [Accepted: 04/03/2019] [Indexed: 02/07/2023] Open
Abstract
Throughout nature, self-assembly gives rise to functional supramolecular biomaterials that can perform complex tasks with extraordinary efficiency and specificity. Inspired by these examples, self-assembly is increasingly used to fabricate synthetic supramolecular biomaterials for diverse applications in biomedicine and biotechnology. Peptides are particularly attractive as building blocks for these materials because they are based on naturally derived amino acids that are biocompatible and biodegradable; they can be synthesized using scalable and cost-effective methods, and their sequence can be tailored to encode formation of diverse architectures. To endow synthetic supramolecular biomaterials with functional capabilities, it is now commonplace to conjugate self-assembling building blocks to molecules having a desired functional property, such as selective recognition of a cell surface receptor or soluble protein, antigenicity, or enzymatic activity. This review surveys recent advances in using self-assembling peptides as handles to incorporate biologically active molecules into supramolecular biomaterials. Particular emphasis is placed on examples of functional nanofibers, nanovesicles, and other nano-scale structures that are fabricated by linking self-assembling peptides to proteins and carbohydrates. Collectively, this review highlights the enormous potential of these approaches to create supramolecular biomaterials with sophisticated functional capabilities that can be finely tuned to meet the needs of downstream applications.
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Affiliation(s)
- Renjie Liu
- J. Crayton Pruitt Family Department of Biomedical Engineering, Wertheim College of Engineering, University of Florida, Gainesville, FL 32611, USA.
| | - Gregory A Hudalla
- J. Crayton Pruitt Family Department of Biomedical Engineering, Wertheim College of Engineering, University of Florida, Gainesville, FL 32611, USA.
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36
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Pugliese R, Maleki M, Zuckermann RN, Gelain F. Self-assembling peptides cross-linked with genipin: resilient hydrogels and self-standing electrospun scaffolds for tissue engineering applications. Biomater Sci 2019; 7:76-91. [PMID: 30475373 DOI: 10.1039/c8bm00825f] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Self-assembling peptides (SAPs) are synthetic bioinspired biomaterials that can be feasibly multi-functionalized for applications in surgery, drug delivery, optics and tissue engineering (TE). Despite their promising biocompatibility and biomimetic properties, they have never been considered real competitors of polymers and/or cross-linked extracellular matrix (ECM) natural proteins. Indeed, synthetic SAP-made hydrogels usually feature modest mechanical properties, limiting their potential applications, due to the transient non-covalent interactions involved in the self-assembling phenomenon. Cross-linked SAP-hydrogels have been recently introduced to bridge this gap, but several questions remain open. New strategies leading to stiffer gels of SAPs may allow for a full exploitation of the SAP technology in TE and beyond. We have developed and characterized a genipin cross-linking strategy significantly increasing the stiffness and resiliency of FAQ(LDLK)3, a functionalized SAP already used for nervous cell cultures. We characterized different protocols of cross-linking, analyzing their dose and time-dependent efficiency, influencing stiffness, bioabsorption time and molecular arrangements. We choose the best developed protocol to electrospin into nanofibers, for the first time, self-standing, water-stable and flexible fibrous mats and micro-channels entirely made of SAPs. This work may open the door to the development and tailoring of bioprostheses entirely made of SAPs for different TE applications.
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Affiliation(s)
- Raffaele Pugliese
- IRCSS Casa Sollievo della Sofferenza, Unità di Ingegneria Tissutale, Viale Cappuccini 1, San Giovanni Rotondo, FG 71013, Italy.
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37
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Guindani C, Dozoretz P, Araújo PH, Ferreira SR, de Oliveira D. N-acetylcysteine side-chain functionalization of poly(globalide-co-ε-caprolactone) through thiol-ene reaction. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 94:477-483. [DOI: 10.1016/j.msec.2018.09.060] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 07/23/2018] [Accepted: 09/23/2018] [Indexed: 11/29/2022]
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38
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Heo SY, Ko SC, Oh GW, Kim N, Choi IW, Park WS, Jung WK. Fabrication and characterization of the 3D-printed polycaprolactone/fish bone extract scaffolds for bone tissue regeneration. J Biomed Mater Res B Appl Biomater 2018; 107:1937-1944. [PMID: 30508311 DOI: 10.1002/jbm.b.34286] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 10/08/2018] [Accepted: 10/29/2018] [Indexed: 12/18/2022]
Abstract
Fish bone extract (FBE) containing a trioligopeptide (FBP-KSA, Lys-Ser-Ala) isolated from Johnius belengerii could induce osteogenic activities on MC3T3-E1 pre-osteoblasts in our previous study. Regarding the osteogenic effect of FBE, in the present study, we fabricated the three-dimensional (3D) interconnected polycaprolactone (PCL)/FBE scaffolds for bone tissue regeneration. After fabrication of PCL scaffolds using 3D printing, FBE was coated on the surface of PCL scaffolds by self-assembly process. In the physical characteristic and mechanical property tests, the results demonstrated that the fabricated scaffolds have the strut diameter (between 340 and 345 μm), pore size (between 470 and 480 μm), porosity (between 50% and 55%), and tensile properties (Young's modulus: 9.18-9.42 MPa; max tensile strengths 82.3-87.4 MPa) were similar to those of PCL scaffold. In the cell proliferation and osteogenic assay, the results showed that PCL/FBE scaffolds could significantly induce cell proliferation, calcium deposition, and the expression of osteogenic phenotype markers such as alkaline phosphatase, osteopontin, osteocalcin, and bone morphogenetic protein-2 in the osteoblasts. These results suggest that FBE-coated PCL scaffolds are promising materials for use in biomedical application to promote bone tissue regeneration. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater 107B: 1937-1944, 2019.
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Affiliation(s)
- Seong-Yeong Heo
- Department of Biomedical Engineering, and Center for Marine-Integrated Biomedical Technology (BK21 Plus), Pukyong National University, Busan, Republic of Korea.,Marine-Integrated Bionics Research Center, Pukyong National University, Busan, Republic of Korea
| | - Seok-Chun Ko
- Marine-Integrated Bionics Research Center, Pukyong National University, Busan, Republic of Korea
| | - Gun-Woo Oh
- Department of Biomedical Engineering, and Center for Marine-Integrated Biomedical Technology (BK21 Plus), Pukyong National University, Busan, Republic of Korea.,Marine-Integrated Bionics Research Center, Pukyong National University, Busan, Republic of Korea
| | - Namwon Kim
- Ingram School of Engineering, Texas State University, San Marcos, Texas
| | - Il-Whan Choi
- Department of Microbiology, Inje University College of Medicine, Busan, Republic of Korea
| | - Won Sun Park
- Department of Physiology, Kangwon National University School of Medicine, Chuncheon, Republic of Korea
| | - Won-Kyo Jung
- Department of Biomedical Engineering, and Center for Marine-Integrated Biomedical Technology (BK21 Plus), Pukyong National University, Busan, Republic of Korea.,Marine-Integrated Bionics Research Center, Pukyong National University, Busan, Republic of Korea
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39
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Haider A, Haider S, Kang IK. A comprehensive review summarizing the effect of electrospinning parameters and potential applications of nanofibers in biomedical and biotechnology. ARAB J CHEM 2018. [DOI: 10.1016/j.arabjc.2015.11.015] [Citation(s) in RCA: 804] [Impact Index Per Article: 134.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
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40
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Novel osteogenic growth peptide C-terminal pentapeptide grafted poly(d,l-lactic acid) improves the proliferation and differentiation of osteoblasts: The potential bone regenerative biomaterial. Int J Biol Macromol 2018; 119:874-881. [DOI: 10.1016/j.ijbiomac.2018.08.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 07/30/2018] [Accepted: 08/02/2018] [Indexed: 12/16/2022]
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Abstract
Self-assembled peptide nanostructures have been increasingly exploited as functional materials for applications in biomedicine and energy. The emergent properties of these nanomaterials determine the applications for which they can be exploited. It has recently been appreciated that nanomaterials composed of multicomponent coassembled peptides often display unique emergent properties that have the potential to dramatically expand the functional utility of peptide-based materials. This review presents recent efforts in the development of multicomponent peptide assemblies. The discussion includes multicomponent assemblies derived from short low molecular weight peptides, peptide amphiphiles, coiled coil peptides, collagen, and β-sheet peptides. The design, structure, emergent properties, and applications for these multicomponent assemblies are presented in order to illustrate the potential of these formulations as sophisticated next-generation bio-inspired materials.
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Affiliation(s)
- Danielle M Raymond
- Department of Chemistry, University of Rochester, Rochester, NY 14627-0216, USA.
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42
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Guazzo R, Gardin C, Bellin G, Sbricoli L, Ferroni L, Ludovichetti FS, Piattelli A, Antoniac I, Bressan E, Zavan B. Graphene-Based Nanomaterials for Tissue Engineering in the Dental Field. NANOMATERIALS (BASEL, SWITZERLAND) 2018; 8:E349. [PMID: 29783786 PMCID: PMC5977363 DOI: 10.3390/nano8050349] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 05/16/2018] [Accepted: 05/17/2018] [Indexed: 12/12/2022]
Abstract
The world of dentistry is approaching graphene-based nanomaterials as substitutes for tissue engineering. Apart from its exceptional mechanical strength, electrical conductivity and thermal stability, graphene and its derivatives can be functionalized with several bioactive molecules. They can also be incorporated into different scaffolds used in regenerative dentistry, generating nanocomposites with improved characteristics. This review presents the state of the art of graphene-based nanomaterial applications in the dental field. We first discuss the interactions between cells and graphene, summarizing the available in vitro and in vivo studies concerning graphene biocompatibility and cytotoxicity. We then highlight the role of graphene-based nanomaterials in stem cell control, in terms of adhesion, proliferation and differentiation. Particular attention will be given to stem cells of dental origin, such as those isolated from dental pulp, periodontal ligament or dental follicle. The review then discusses the interactions between graphene-based nanomaterials with cells of the immune system; we also focus on the antibacterial activity of graphene nanomaterials. In the last section, we offer our perspectives on the various opportunities facing the use of graphene and its derivatives in associations with titanium dental implants, membranes for bone regeneration, resins, cements and adhesives as well as for tooth-whitening procedures.
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Affiliation(s)
- Riccardo Guazzo
- Department of Neurosciences, Institute of Clinical Dentistry, University of Padova, 35128 Padova, Italy.
| | - Chiara Gardin
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy.
- Maria Pia Hospital, GVM Care & Research, 10132 Torino, Italy.
| | - Gloria Bellin
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy.
- Maria Pia Hospital, GVM Care & Research, 10132 Torino, Italy.
| | - Luca Sbricoli
- Department of Neurosciences, Institute of Clinical Dentistry, University of Padova, 35128 Padova, Italy.
| | - Letizia Ferroni
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy.
- Maria Pia Hospital, GVM Care & Research, 10132 Torino, Italy.
| | | | - Adriano Piattelli
- Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, 66100 Chieti, Italy.
| | - Iulian Antoniac
- Department Materials Science and Engineering, University Politehnica of Bucharest, 060032 Bucharest, Romania.
| | - Eriberto Bressan
- Department of Neurosciences, Institute of Clinical Dentistry, University of Padova, 35128 Padova, Italy.
| | - Barbara Zavan
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy.
- Maria Cecilia Hospital, GVM Care & Research, 48033 Ravenna, Italy.
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43
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Rainer A, Centola M, Spadaccio C, Gherardi G, Genovese JA, Licoccia S, Trombetta M. Comparative Study of Different Techniques for the Sterilization of Poly-L-lactide Electrospun Microfibers: Effectiveness vs. Material Degradation. Int J Artif Organs 2018. [DOI: 10.1177/039139881003300203] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Electrospinning of biopolymeric scaffolds is a new and effective approach for creating replacement tissues to repair defects and/or damaged tissues with direct clinical application. However, many hurdles and technical concerns regarding biological issues, such as cell retention and the ability to grow, still need to be overcome to gain full access to the clinical arena. Interaction with the host human tissues, immunogenicity, pathogen transmission as well as production costs, technical expertise, and good manufacturing and laboratory practice requirements call for careful consideration when aiming at the production of a material that is available off-the-shelf, to be used immediately in operative settings. The issue of sterilization is one of the most important steps for the clinical application of these scaffolds. Nevertheless, relatively few studies have been performed to systematically investigate how sterilization treatments may affect the properties of electrospun polymers for tissue engineering. This paper presents the results of a comparative study of different sterilization techniques applied to an electrospun poly-L-lactide scaffold: soaking in absolute ethanol, dry oven and autoclave treatments, UV irradiation, and hydrogen peroxide gas plasma treatment. Morphological and chemical characterization was coupled with microbiological sterility assay to validate the examined sterilization techniques in terms of effectiveness and modifications to the scaffold. The results of this study reveal that UV irradiation and hydrogen peroxide gas plasma are the most effective sterilization techniques, as they ensure sterility of the electrospun scaffolds without affecting their chemical and morphological features.
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Affiliation(s)
- Alberto Rainer
- Center of Integrated Research (CIR) – Laboratory of Chemistry & Biomaterials, University Campus Bio-Medico of Rome, Rome
| | - Matteo Centola
- Center of Integrated Research (CIR) – Laboratory of Chemistry & Biomaterials, University Campus Bio-Medico of Rome, Rome
| | - Cristiano Spadaccio
- CIR - Area of Cardiovascular Surgery, University Campus Bio-Medico of Rome, Rome
| | - Giovanni Gherardi
- CIR - Laboratory of Microbiology, University Campus Bio-Medico of Rome, Rome
| | - Jorge A. Genovese
- CIR - Area of Cardiovascular Surgery, University Campus Bio-Medico of Rome, Rome
| | - Silvia Licoccia
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, Rome
- NAST Center for Nanoscience, Nanotechnology & Innovative Instrumentation, University of Rome Tor Vergata, Rome - Italy
| | - Marcella Trombetta
- Center of Integrated Research (CIR) – Laboratory of Chemistry & Biomaterials, University Campus Bio-Medico of Rome, Rome
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Three-Dimensional Graphene-RGD Peptide Nanoisland Composites That Enhance the Osteogenesis of Human Adipose-Derived Mesenchymal Stem Cells. Int J Mol Sci 2018; 19:ijms19030669. [PMID: 29495519 PMCID: PMC5877530 DOI: 10.3390/ijms19030669] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Revised: 02/03/2018] [Accepted: 02/22/2018] [Indexed: 12/13/2022] Open
Abstract
Graphene derivatives have immense potential in stem cell research. Here, we report a three-dimensional graphene/arginine-glycine-aspartic acid (RGD) peptide nanoisland composite effective in guiding the osteogenesis of human adipose-derived mesenchymal stem cells (ADSCs). Amine-modified silica nanoparticles (SiNPs) were uniformly coated onto an indium tin oxide electrode (ITO), followed by graphene oxide (GO) encapsulation and electrochemical deposition of gold nanoparticles. A RGD–MAP–C peptide, with a triple-branched repeating RGD sequence and a terminal cysteine, was self-assembled onto the gold nanoparticles, generating the final three-dimensional graphene–RGD peptide nanoisland composite. We generated substrates with various gold nanoparticle–RGD peptide cluster densities, and found that the platform with the maximal number of clusters was most suitable for ADSC adhesion and spreading. Remarkably, the same platform was also highly efficient at guiding ADSC osteogenesis compared with other substrates, based on gene expression (alkaline phosphatase (ALP), runt-related transcription factor 2), enzyme activity (ALP), and calcium deposition. ADSCs induced to differentiate into osteoblasts showed higher calcium accumulations after 14–21 days than when grown on typical GO-SiNP complexes, suggesting that the platform can accelerate ADSC osteoblastic differentiation. The results demonstrate that a three-dimensional graphene–RGD peptide nanoisland composite can efficiently derive osteoblasts from mesenchymal stem cells.
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45
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Kalaoglu-Altan OI, Kirac-Aydin A, Sumer Bolu B, Sanyal R, Sanyal A. Diels–Alder “Clickable” Biodegradable Nanofibers: Benign Tailoring of Scaffolds for Biomolecular Immobilization and Cell Growth. Bioconjug Chem 2017; 28:2420-2428. [DOI: 10.1021/acs.bioconjchem.7b00411] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Ozlem Ipek Kalaoglu-Altan
- Department of Chemistry and ‡Center for Life Sciences and Technologies, Bogazici University,
Bebek 34342, Istanbul, Turkey
| | - Azize Kirac-Aydin
- Department of Chemistry and ‡Center for Life Sciences and Technologies, Bogazici University,
Bebek 34342, Istanbul, Turkey
| | - Burcu Sumer Bolu
- Department of Chemistry and ‡Center for Life Sciences and Technologies, Bogazici University,
Bebek 34342, Istanbul, Turkey
| | - Rana Sanyal
- Department of Chemistry and ‡Center for Life Sciences and Technologies, Bogazici University,
Bebek 34342, Istanbul, Turkey
| | - Amitav Sanyal
- Department of Chemistry and ‡Center for Life Sciences and Technologies, Bogazici University,
Bebek 34342, Istanbul, Turkey
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46
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Darshan GH, Kong D, Gautrot J, Vootla S. Physico-chemical characterization of Antheraea mylitta silk mats for wound healing applications. Sci Rep 2017; 7:10344. [PMID: 28871135 PMCID: PMC5583262 DOI: 10.1038/s41598-017-10531-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Accepted: 08/10/2017] [Indexed: 01/29/2023] Open
Abstract
In the field of plastic reconstructive surgery, development of new innovative matrices for skin repair is in demand. The ideal biomaterial should promote attachment, proliferation and growth of cells. Additionally, it should degrade in an appropriate time period without releasing harmful substances, not exerting a pathological immune response. The materials used should display optimized mechanical properties to sustain cell growth and limit scaffold contraction. Wound healing is a biological process directed towards restoration of tissue that has suffered an injury. An important phase of wound healing is the generation of a basal epithelium wholly replacing the epidermis of the wound. Wild silk from Antheraea mylitta meets these demands to a large extent. To evaluate the effects of the treatment, Antheraea mylitta and Bombyx mori samples were characterized by SEM-EDX, FT-IR, XRD and TGA-DSC techniques. Preliminary cell growth behavior was carried out by culturing epidermal cells and proliferation was quantified via viability assay. Moreover, Antheraea mylitta possesses excellent cell-adhesive capability, effectively promoting cell attachment and proliferation. Antheraea mylitta serves as a delivery vehicle for cells. With all these unique features, it is expected that Antheraea mylitta mat will have wide utility in the areas of tissue engineering and regenerative medicine.
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Affiliation(s)
- G H Darshan
- Department of Biotechnology and Microbiology, Karnatak University, Dharwad, 580 003, Karnataka, India
| | - Dexu Kong
- School of engineering and Material Science, Queen Mary University of London, Mile End Road, London, E1 4NS, UK
| | - Julien Gautrot
- School of engineering and Material Science, Queen Mary University of London, Mile End Road, London, E1 4NS, UK
| | - Shyamkumar Vootla
- Department of Biotechnology and Microbiology, Karnatak University, Dharwad, 580 003, Karnataka, India.
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47
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Zhang YS, Zhu C, Xia Y. Inverse Opal Scaffolds and Their Biomedical Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:10.1002/adma.201701115. [PMID: 28649794 PMCID: PMC5581229 DOI: 10.1002/adma.201701115] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2017] [Revised: 03/23/2017] [Indexed: 05/04/2023]
Abstract
Three-dimensional porous scaffolds play a pivotal role in tissue engineering and regenerative medicine by functioning as biomimetic substrates to manipulate cellular behaviors. While many techniques have been developed to fabricate porous scaffolds, most of them rely on stochastic processes that typically result in scaffolds with pores uncontrolled in terms of size, structure, and interconnectivity, greatly limiting their use in tissue regeneration. Inverse opal scaffolds, in contrast, possess uniform pores inheriting from the template comprised of a closely packed lattice of monodispersed microspheres. The key parameters of such scaffolds, including architecture, pore structure, porosity, and interconnectivity, can all be made uniform across the same sample and among different samples. In conjunction with a tight control over pore sizes, inverse opal scaffolds have found widespread use in biomedical applications. In this review, we provide a detailed discussion on this new class of advanced materials. After a brief introduction to their history and fabrication, we highlight the unique advantages of inverse opal scaffolds over their non-uniform counterparts. We then showcase their broad applications in tissue engineering and regenerative medicine, followed by a summary and perspective on future directions.
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Affiliation(s)
- Yu Shrike Zhang
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
| | - Chunlei Zhu
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, 30332, USA
| | - Younan Xia
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, 30332, USA
- School of Chemistry and Biochemistry, School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
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48
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Tanes ML, Xue J, Xia Y. A General Strategy for Generating Gradients of Bioactive Proteins on Electrospun Nanofiber Mats by Masking with Bovine Serum Albumin. J Mater Chem B 2017; 5:5580-5587. [PMID: 28848651 PMCID: PMC5571829 DOI: 10.1039/c7tb00974g] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Electrospun nanofibers are widely used in tissue engineering owing to their capability to mimic the structures and architectures of various types of extracellular matrices. However, it has been difficult to incorporate a biochemical cue into the physical cue provided by the nanofibers. Here we report a simple and versatile method for generating gradients of bioactive proteins on nanofiber mats. We establish that the adsorption of bovine serum albumin (BSA) onto nanofibers is a time- and concentration-dependent process. By linearly increasing the volume of BSA solution introduced into a container, a gradient in BSA is readily generated across the length of a vertically oriented strip of nanofibers. Next, the bare regions uncovered by BSA can be filled with the bioactive protein of interest. In demonstrating the potential application, we examine the outgrowth of neurites from dorsal root ganglion (DRG) isolated from chick embryos and then seeded on aligned polycaprolactone nanofibers covered by nerve growth factor (NGF) with a uniform coverage or in a gradient. In the case of uniform coverage, the neurites extending from DRG show essentially the same length on either side of the DRG cell mass. For the sample with a gradient in NGF, the neurites extending along the gradient (i.e., increase of NGF concentration) were significantly longer than the neurites extending against the gradient.
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Affiliation(s)
- Michael L Tanes
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia 30332, United States
| | - Jiajia Xue
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia 30332, United States
| | - Younan Xia
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia 30332, United States
- School of Chemistry and Biochemistry, School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
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49
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Grande D, Ramier J, Versace DL, Renard E, Langlois V. Design of functionalized biodegradable PHA-based electrospun scaffolds meant for tissue engineering applications. N Biotechnol 2017; 37:129-137. [DOI: 10.1016/j.nbt.2016.05.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Revised: 05/09/2016] [Accepted: 05/31/2016] [Indexed: 10/21/2022]
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50
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Chen S, Liu B, Carlson MA, Gombart AF, Reilly DA, Xie J. Recent advances in electrospun nanofibers for wound healing. Nanomedicine (Lond) 2017; 12:1335-1352. [PMID: 28520509 PMCID: PMC6661929 DOI: 10.2217/nnm-2017-0017] [Citation(s) in RCA: 193] [Impact Index Per Article: 27.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Accepted: 03/23/2017] [Indexed: 01/08/2023] Open
Abstract
Electrospun nanofibers represent a novel class of materials that show great potential in many biomedical applications including biosensing, regenerative medicine, tissue engineering, drug delivery and wound healing. In this work, we review recent advances in electrospun nanofibers for wound healing. This article begins with a brief introduction on the wound, and then discusses the unique features of electrospun nanofibers critical for wound healing. It further highlights recent studies that have used electrospun nanofibers for wound healing applications and devices, including sutures, multifunctional dressings, dermal substitutes, engineered epidermis and full-thickness skin regeneration. Finally, we finish with conclusions and future perspective in this field.
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Affiliation(s)
- Shixuan Chen
- Department of Surgery–Transplant & Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Bing Liu
- Department of Surgery–Transplant & Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, NE 68198, USA
- Department of Anorectal Surgery, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, China
| | - Mark A Carlson
- Departments of Surgery & Genetics, Cell Biology & Anatomy, University of Nebraska Medical Center, Omaha, NE 68198, USA
- Department of Surgery, VA Nebraska–Western Iowa Health Care System, Omaha, NE 68105, USA
| | - Adrian F Gombart
- Department of Biochemistry & Biophysics & Linus Pauling Institute, Oregon State University, Corvallis, OR 97331, USA
| | - Debra A Reilly
- Departments of Surgery–Plastic & Reconstructive Surgery, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Jingwei Xie
- Department of Surgery–Transplant & Mary & Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, NE 68198, USA
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