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Deng J, Yao Z, Wang S, Zhang X, Zhan L, Wang T, Yu W, Zeng J, Wu J, Fu S, Wu S, Ouyang Y, Huang C. Uni-directional release of ibuprofen from an asymmetric fibrous membrane enables effective peritendinous anti-adhesion. J Control Release 2024; 372:251-264. [PMID: 38908755 DOI: 10.1016/j.jconrel.2024.06.046] [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: 12/16/2023] [Revised: 05/31/2024] [Accepted: 06/19/2024] [Indexed: 06/24/2024]
Abstract
Drug-loaded porous membranes have been deemed to be effective physicochemical barriers to separate postoperative adhesion-prone tissues in tendon healing. However, cell viability and subsequent tissue regeneration might be severely interfered with the unrestricted release and the locally excessive concentration of anti-inflammatory drugs. Herein, we report a double-layered membrane with sustained and uni-directional drug delivery features to prevent peritendinous adhesion without hampering the healing outcome. A vortex-assisted electrospinning system in combination with ibuprofen (IBU)-in-water emulsion was utilized to fabricate IBU-loaded poly-ʟ-lactic-acid (PLLA) fiber bundle membrane (PFB-IBU) as the anti-adhesion layer. The resultant highly porous structure, oleophilic and hydrophobic nature of PLLA fibers enabled in situ loading of IBU with a concentration gradient across the membrane thickness. Aligned collagen nanofibers were further deposited at the low IBU concentration side of the membrane for regulating cell growth and achieving uni-directional release of IBU. Drug release kinetics showed that the release amount of IBU from the high concentration side reached 79.32% at 14 d, while it was only 0.35% at the collagen side. Therefore, fibroblast proliferation at the high concentration side was successfully inhibited without affecting the oriented growth of tendon-derived stem cells at the other side. In vivo evaluation of the rat Achilles adhesion model confirmed the successful peritendinous anti-adhesion of our double-layered membrane, in that the macrophage recruitment, the inflammatory factor secretion and the deposition of pathological adhesion markers such as α-SMA and COL-III were all inhibited, which greatly improved the peritendinous fibrosis and restored the motor function of tendon.
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Affiliation(s)
- Jixia Deng
- Shanghai Frontiers Science Center of Advanced Textiles, College of Textiles, Donghua University, Shanghai 201620, China
| | - Zhixiao Yao
- Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 201620, China
| | - Shikun Wang
- Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 201620, China
| | - Xinyu Zhang
- Shanghai Frontiers Science Center of Advanced Textiles, College of Textiles, Donghua University, Shanghai 201620, China
| | - Lei Zhan
- Shanghai Frontiers Science Center of Advanced Textiles, College of Textiles, Donghua University, Shanghai 201620, China
| | - Tongyu Wang
- Shanghai Frontiers Science Center of Advanced Textiles, College of Textiles, Donghua University, Shanghai 201620, China
| | - Wenhua Yu
- Shanghai Frontiers Science Center of Advanced Textiles, College of Textiles, Donghua University, Shanghai 201620, China
| | - Jiamei Zeng
- Shanghai Frontiers Science Center of Advanced Textiles, College of Textiles, Donghua University, Shanghai 201620, China
| | - Jinglei Wu
- Biomaterials and Tissue Engineering Laboratory, College of Chemistry and Chemical Engineering and Biological Engineering, Donghua University, Shanghai 201620, China
| | - Shaoju Fu
- Shanghai Frontiers Science Center of Advanced Textiles, College of Textiles, Donghua University, Shanghai 201620, China
| | - Shihao Wu
- School of Medicine, Yunnan University, Kunming, Yunnan 650091, China.
| | - Yuanming Ouyang
- Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 201620, China.
| | - Chen Huang
- Shanghai Frontiers Science Center of Advanced Textiles, College of Textiles, Donghua University, Shanghai 201620, China.
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2
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Li Y, Yang KD, Kong DC, Li XM, Duan HY, Ye JF. Harnessing filamentous phages for enhanced stroke recovery. Front Immunol 2024; 14:1343788. [PMID: 38299142 PMCID: PMC10829096 DOI: 10.3389/fimmu.2023.1343788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Accepted: 12/27/2023] [Indexed: 02/02/2024] Open
Abstract
Stroke poses a critical global health challenge, leading to substantial morbidity and mortality. Existing treatments often miss vital timeframes and encounter limitations due to adverse effects, prompting the pursuit of innovative approaches to restore compromised brain function. This review explores the potential of filamentous phages in enhancing stroke recovery. Initially antimicrobial-centric, bacteriophage therapy has evolved into a regenerative solution. We explore the diverse role of filamentous phages in post-stroke neurological restoration, emphasizing their ability to integrate peptides into phage coat proteins, thereby facilitating recovery. Experimental evidence supports their efficacy in alleviating post-stroke complications, immune modulation, and tissue regeneration. However, rigorous clinical validation is essential to address challenges like dosing and administration routes. Additionally, genetic modification enhances their potential as injectable biomaterials for complex brain tissue issues. This review emphasizes innovative strategies and the capacity of filamentous phages to contribute to enhanced stroke recovery, as opposed to serving as standalone treatment, particularly in addressing stroke-induced brain tissue damage.
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Affiliation(s)
- Yang Li
- General Surgery Center, First Hospital of Jilin University, Changchun, Jilin, China
- School of Nursing, Jilin University, Changchun, China
| | - Kai-di Yang
- School of Nursing, Jilin University, Changchun, China
| | - De-cai Kong
- General Surgery Center, First Hospital of Jilin University, Changchun, Jilin, China
| | - Xiao-meng Li
- School of Nursing, Jilin University, Changchun, China
| | - Hao-yu Duan
- General Surgery Center, First Hospital of Jilin University, Changchun, Jilin, China
| | - Jun-feng Ye
- General Surgery Center, First Hospital of Jilin University, Changchun, Jilin, China
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3
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Vijayakumar N, Venkatraman SK, Nandakumar R, Alex RA, Abraham J, Mohammadi H, Ebadi M, Swamiappan S. Optimization of Metal Ion/Fuel Ratio for an Effective Combustion of Monticellite and Investigation of Its Microbial and Hemolytic Activity for Biomedical Applications. ACS OMEGA 2023; 8:36919-36932. [PMID: 37841139 PMCID: PMC10568587 DOI: 10.1021/acsomega.3c03984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 08/16/2023] [Indexed: 10/17/2023]
Abstract
Bioactive silicates have gained popularity as bone graft substitutes in recent years due to their exceptional ability to bind to host tissues. The current study investigates the effect of changing the metal ion-to-fuel ratio on the properties and biological activity of monticellite prepared via the sol-gel connived combustion technique. Single-phasic monticellite was obtained at 900 °C, without any secondary-phase contaminants for the fuel-lean, stoichiometric, and fuel-rich conditions. SEM and TEM micrographs revealed the porous, spongy morphology of the materials. Because of the reduced crystallite size and higher surface area, the biomineralization of monticellite prepared under fuel-lean conditions resulted in more apatite deposition than those of the other two samples. The results show that the material has a good compressive strength comparable to natural bone, while its brittleness is equivalent to the lower moduli of bone. In terms of antibacterial and antifungal activities, the monticellite bioceramics outperformed the clinical pathogens. It can be used for bone tissue engineering and other biological applications due to its excellent anti-inflammatory and hemolysis inhibitory properties.
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Affiliation(s)
- Naveensubramaniam Vijayakumar
- Department
of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore, Tamil Nadu 632 014, India
| | - Senthil Kumar Venkatraman
- Department
of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore, Tamil Nadu 632 014, India
| | - Ravindiran Nandakumar
- Department
of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore, Tamil Nadu 632 014, India
| | - Raveena Ann Alex
- Microbial
Biotechnology Laboratory, School of Biosciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu 632014, India
| | - Jayanthi Abraham
- Microbial
Biotechnology Laboratory, School of Biosciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu 632014, India
| | - Hossein Mohammadi
- Institute
of Energy Infrastructure (IEI), Universiti
Tenaga Nasional, Jalan IKRAMUNITEN, Kajang, Selangor 43000, Malaysia
| | - Mona Ebadi
- Department
of Chemical Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia (UKM), Bangi, Selangor 43600, Malaysia
| | - Sasikumar Swamiappan
- Department
of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore, Tamil Nadu 632 014, India
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4
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Azimi B, Ricci C, Macchi T, Günday C, Munafò S, Maleki H, Pratesi F, Tempesti V, Cristallini C, Bruschini L, Lazzeri A, Danti S, Günday-Türeli N. A Straightforward Method to Produce Multi-Nanodrug Delivery Systems for Transdermal/Tympanic Patches Using Electrospinning and Electrospray. Polymers (Basel) 2023; 15:3494. [PMID: 37688120 PMCID: PMC10490036 DOI: 10.3390/polym15173494] [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: 05/12/2023] [Revised: 08/03/2023] [Accepted: 08/14/2023] [Indexed: 09/10/2023] Open
Abstract
The delivery of drugs through the skin barrier at a predetermined rate is the aim of transdermal drug delivery systems (TDDSs). However, so far, TDDS has not fully attained its potential as an alternative to hypodermic injections and oral delivery. In this study, we presented a proof of concept of a dual drug-loaded patch made of nanoparticles (NPs) and ultrafine fibers fabricated by using one equipment, i.e., the electrospinning apparatus. Such NP/fiber systems can be useful to release drugs locally through the skin and the tympanic membrane. Briefly, dexamethasone (DEX)-loaded poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBHV) fiber meshes were decorated with rhodamine (RHO)-loaded poly(lactic-co-glycolic acid) (PLGA) NPs, with RHO representing as a second drug model. By properly tuning the working parameters of electrospinning, DEX-loaded PHBHV fibers (i.e., by electrospinning mode) and RHO-loaded PLGA NPs (i.e., by electrospray mode) were successfully prepared and straightforwardly assembled to form a TDDS patch, which was characterized via Fourier transform infrared spectroscopy and dynamometry. The patch was then tested in vitro using human dermal fibroblasts (HDFs). The incorporation of DEX significantly reduced the fiber mesh stiffness. In vitro tests showed that HDFs were viable for 8 days in contact with drug-loaded samples, and significant signs of cytotoxicity were not highlighted. Finally, thanks to a beaded structure of the fibers, a controlled release of DEX from the electrospun patch was obtained over 4 weeks, which may accomplish the therapeutic objective of a local, sustained and prolonged anti-inflammatory action of a TDDS, as is requested in chronic inflammatory conditions, and other pathological conditions, such as in sudden sensorineural hearing loss treatment.
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Affiliation(s)
- Bahareh Azimi
- Department of Civil and Industrial Engineering, University of Pisa, Largo L. Lazzarino 2, 56122 Pisa, Italy
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), via G. Giusti 9, 50121 Florence, Italy
| | - Claudio Ricci
- Department of Civil and Industrial Engineering, University of Pisa, Largo L. Lazzarino 2, 56122 Pisa, Italy
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), via G. Giusti 9, 50121 Florence, Italy
- Department of Translational Researches and New Technologies in Medicine and Surgery, via Savi 10, 56126 Pisa, Italy
| | - Teresa Macchi
- Department of Translational Researches and New Technologies in Medicine and Surgery, via Savi 10, 56126 Pisa, Italy
| | - Cemre Günday
- MyBiotech GmbH, Industriestrasse 1B, 66802 Überherrn, Germany
| | - Sara Munafò
- Department of Civil and Industrial Engineering, University of Pisa, Largo L. Lazzarino 2, 56122 Pisa, Italy
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), via G. Giusti 9, 50121 Florence, Italy
| | - Homa Maleki
- Department of Carpet, Faculty of Arts, University of Birjand, Birjand 9717434765, Iran
| | - Federico Pratesi
- Department of Translational Researches and New Technologies in Medicine and Surgery, via Savi 10, 56126 Pisa, Italy
| | - Veronika Tempesti
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), via G. Giusti 9, 50121 Florence, Italy
| | - Caterina Cristallini
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), via G. Giusti 9, 50121 Florence, Italy
- Institute for Chemical and Physical Processes (IPCF), National Council of Researches (CNR), via G. Moruzzi 1, 56124 Pisa, Italy
| | - Luca Bruschini
- Department of Surgical, Medical, Molecular Pathology and Emergency Medicine, University of Pisa, via Savi 10, 56126 Pisa, Italy
| | - Andrea Lazzeri
- Department of Civil and Industrial Engineering, University of Pisa, Largo L. Lazzarino 2, 56122 Pisa, Italy
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), via G. Giusti 9, 50121 Florence, Italy
- Institute for Chemical and Physical Processes (IPCF), National Council of Researches (CNR), via G. Moruzzi 1, 56124 Pisa, Italy
| | - Serena Danti
- Department of Civil and Industrial Engineering, University of Pisa, Largo L. Lazzarino 2, 56122 Pisa, Italy
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), via G. Giusti 9, 50121 Florence, Italy
- Institute for Chemical and Physical Processes (IPCF), National Council of Researches (CNR), via G. Moruzzi 1, 56124 Pisa, Italy
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5
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Esophageal wound healing by aligned smooth muscle cell-laden nanofibrous patch. Mater Today Bio 2023; 19:100564. [PMID: 36747583 PMCID: PMC9898453 DOI: 10.1016/j.mtbio.2023.100564] [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: 11/17/2022] [Revised: 01/22/2023] [Accepted: 01/24/2023] [Indexed: 01/27/2023] Open
Abstract
The esophagus exhibits peristalsis via contraction of circularly and longitudinally aligned smooth muscles, and esophageal replacement is required if there is a critical-sized wound. In this study, we proposed to reconstruct esophageal tissues using cell electrospinning (CE), an advanced technique for encapsulating living cells into fibers that allows control of the direction of fiber deposition. After treatment with transforming growth factor-β, mesenchymal stem cell-derived smooth muscle cells (SMCs) were utilized for cell electrospinning or three-dimensional bioprinting to compare the effects of aligned micropatterns on cell morphology. CE resulted in SMCs with uniaxially arranged and elongated cell morphology with upregulated expression levels of SMC-specific markers, including connexin 43, smooth muscle protein 22 alpha (SM22α), desmin, and smoothelin. When SMC-laden nanofibrous patches were transplanted into a rat esophageal defect model, the SMC patch promoted regeneration of esophageal wounds with an increased number of newly formed blood vessels and enhanced the SMC-specific markers of SM22α and vimentin. Taken together, CE with its advantages, such as guidance of highly elongated, aligned cell morphology and accelerated SMC differentiation, can be an efficient strategy to reconstruct smooth muscle tissues and treat esophageal perforation.
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6
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Biomimetic nanofiber-enabled rapid creation of skin grafts. Nanomedicine (Lond) 2023. [DOI: 10.1016/b978-0-12-818627-5.00009-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2023] Open
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7
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Kukulka EC, de Souza JR, de Araújo JCR, de Vasconcellos LMR, Campos TMB, Thim GP, Borges ALS. Polycaprolactone/chlorinated bioglass scaffolds doped with Mg and Li ions: Morphological, physicochemical, and biological analysis. J Biomed Mater Res B Appl Biomater 2023; 111:140-150. [PMID: 35852036 DOI: 10.1002/jbm.b.35140] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 05/30/2022] [Accepted: 07/05/2022] [Indexed: 11/05/2022]
Abstract
The objective was to synthesize and characterize fine polycaprolactone (PCL) fibers associated with a new 58S bioglass obtained by the precipitated sol-gel route, produced by the electrospinning process in order to incorporate therapeutic ions (Mg and Li). In PCL/acetone solutions were added 7% pure bioglass, bioglass doped with Mg(NO3 )2 and Li2 CO3 and were subjected to electrospinning process. The fibers obtained were characterized morphologically, chemically and biologically. The results showed the presence of fine fibers at the nanometric scale and with diameters ranging from 0.67 to 1.92 μm among groups. Groups containing bioglass showed particles both inside and on the surface of the fibers. The components of the polymer, bioglass and therapeutic ions were present in the fibers produced. The produced fibers showed cell viability and induced the formation of mineralization nodules. It was observed the applicability of that methodology in making an improved biomaterial, which adds the osteoinductive properties of the bioglass to PCL and to those of therapeutic ions, applicable to guided bone regeneration.
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Affiliation(s)
- Elisa Camargo Kukulka
- Department of Dental Materials and Prosthesis, Institute of Science and Technology, São Paulo State University (UNESP), São José dos Campos, Brazil
| | - Joyce Rodrigues de Souza
- Department of Dental Materials and Prosthesis, Institute of Science and Technology, São Paulo State University (UNESP), São José dos Campos, Brazil
| | - Juliani Carolini Ribeiro de Araújo
- Department of Bioscience and Oral Diagnosis, Institute of Science and Technology, São Paulo State University (UNESP), São José dos Campos, Brazil
| | - Luana Marotta Reis de Vasconcellos
- Department of Bioscience and Oral Diagnosis, Institute of Science and Technology, São Paulo State University (UNESP), São José dos Campos, Brazil
| | | | - Gilmar Patricínio Thim
- Department of Physics, Technological Institute of Aeronautics (ITA), São José dos Campos, Brazil
| | - Alexandre Luiz Souto Borges
- Department of Dental Materials and Prosthesis, Institute of Science and Technology, São Paulo State University (UNESP), São José dos Campos, Brazil
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8
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Effect of cellulose nanofibers on polyhydroxybutyrate electrospun scaffold for bone tissue engineering applications. Int J Biol Macromol 2022; 220:1402-1414. [PMID: 36116594 DOI: 10.1016/j.ijbiomac.2022.09.118] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 09/10/2022] [Accepted: 09/13/2022] [Indexed: 11/21/2022]
Abstract
The choice of materials and preparation methods are the most important factors affecting the final characteristics of the scaffolds. In this study, cellulose nanofibers (CNFs) as a nano-additive reinforcer were selected to prepare a polyhydroxybutyrate (PHB) based nanocomposite mat. The PHB/CNF (PC) scaffold properties, created via the electrospinning method, were investigated and compared with pure PHB. The obtained results, in addition to a slight increment of crystallinity (from ≃46 to 53 %), showed better water contact angle (from ≃120 to 96°), appropriate degradation rate (up to ≃25 % weight loss in two months), prominent biomineralization (Ca/P ratio about 1.50), and ≃89 % increment in toughness factor of PC compare to the neat PHB. Moreover, the surface roughness as an affecting parameter on cell behavior was also increased up to ≃43 % in the presence of CNFs. Eventually, not only the MTT assay revealed better human osteoblast MG63 cell viability on PC samples, but also DAPI staining and SEM results confirmed the more plausible cell spreading in the presence of cellulose nano-additive. These improvements, along with the appropriate results of ALP and Alizarin red, authenticate that the newly PC nanocomposite composition has the required efficiency in the field of bone tissue engineering.
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9
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A Modular Composite Device of Poly(Ethylene Oxide)/Poly(Butylene Terephthalate) (PEOT/PBT) Nanofibers and Gelatin as a Dual Drug Delivery System for Local Therapy of Soft Tissue Tumors. Int J Mol Sci 2022; 23:ijms23063239. [PMID: 35328661 PMCID: PMC8948985 DOI: 10.3390/ijms23063239] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 03/02/2022] [Accepted: 03/04/2022] [Indexed: 12/24/2022] Open
Abstract
In the clinical management of solid tumors, the possibility to successfully couple the regeneration of injured tissues with the elimination of residual tumor cells left after surgery could open doors to new therapeutic strategies. In this work, we present a composite hydrogel-electrospun nanofiber scaffold, showing a modular architecture for the delivery of two pharmaceutics with distinct release profiles, that is potentially suitable for local therapy and post-surgical treatment of solid soft tumors. The composite was obtained by coupling gelatin hydrogels to poly(ethylene oxide)/poly(butylene terephthalate) block copolymer nanofibers. Results of the scaffolds' characterization, together with the analysis of gelatin and drug release kinetics, displayed the possibility to modulate the device architecture to control the release kinetics of the drugs, also providing evidence of their activity. In vitro analyses were also performed using a human epithelioid sarcoma cell line. Furthermore, publicly available expression datasets were interrogated. Confocal imaging showcased the nontoxicity of these devices in vitro. ELISA assays confirmed a modulation of IL-10 inflammation-related cytokine supporting the role of this device in tissue repair. In silico analysis confirmed the role of IL-10 in solid tumors including 262 patients affected by sarcoma as a negative prognostic marker for overall survival. In conclusion, the developed modular composite device may provide a key-enabling technology for the treatment of soft tissue sarcoma.
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10
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Bowers DT, Brown JL. Nanofiber curvature with Rho GTPase activity increases mouse embryonic fibroblast random migration velocity. Integr Biol (Camb) 2022; 13:295-308. [PMID: 35022716 PMCID: PMC8759537 DOI: 10.1093/intbio/zyab022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 07/30/2021] [Indexed: 01/14/2023]
Abstract
Mechanotransduction arises from information encoded in the shape of materials such as curvature. It induces activation of small GTPase signaling affecting cell phenotypes including differentiation. We carried out a set of preliminary experiments to test the hypothesis that curvature (1/radius) would also affect cell motility due to signal pathway crosstalk. High molecular weight poly (methyl methacrylate) straight nanofibers were electrospun with curvature ranging from 41 to 1 μm-1 and collected on a passivated glass substrate. The fiber curvature increased mouse mesenchymal stem cell aspect ratio (P < 0.02) and decreased cell area (P < 0.01). Despite little effect on some motility patterns such as polarity and persistence, we found selected fiber curvatures can increase normalized random fibroblastic mouse embryonic cell (MEF) migration velocity close to 2.5 times compared with a flat surface (P < 0.001). A maximum in the velocity curve occurred near 2.5 μm-1 and may vary with the time since initiation of attachment to the surface (range of 0-20 h). In the middle range of fiber curvatures, the relative relationship to curvature was similar regardless of treatment with Rho-kinase inhibitor (Y27632) or cdc42 inhibitor (ML141), although it was decreased on most curvatures (P < 0.05). However, below a critical curvature threshold MEFs may not be able to distinguish shallow curvature from a flat surface, while still being affected by contact guidance. The preliminary data in this manuscript suggested the large low curvature fibers were interpreted in a manner similar to a non-curved surface. Thus, curvature is a biomaterial construct design parameter that should be considered when specific biological responses are desired. Statement of integration, innovation, and insight Replacement of damaged or diseased tissues that cannot otherwise regenerate is transforming modern medicine. However, the extent to which we can rationally design materials to affect cellular outcomes remains low. Knowing the effect of material stiffness and diameter on stem cell differentiation, we investigated cell migration and signaling on fibrous scaffolds. By investigating diameters across orders of magnitude (50-2000 nm), we identified a velocity maximum of ~800 nm. Furthermore, the results suggest large fibers may not be interpreted by single cells as a curved surface. This work presents insight into the design of constructs for engineering tissues.
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11
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Lopez Marquez A, Gareis IE, Dias FJ, Gerhard C, Lezcano MF. How Fiber Surface Topography Affects Interactions between Cells and Electrospun Scaffolds: A Systematic Review. Polymers (Basel) 2022; 14:polym14010209. [PMID: 35012232 PMCID: PMC8747153 DOI: 10.3390/polym14010209] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 12/22/2021] [Accepted: 12/29/2021] [Indexed: 01/02/2023] Open
Abstract
Electrospun scaffolds have a 3D fibrous structure that attempts to imitate the extracellular matrix in order to be able to host cells. It has been reported in the literature that controlling fiber surface topography produces varying results regarding cell–scaffold interactions. This review analyzes the relevant literature concerning in vitro studies to provide a better understanding of the effect that controlling fiber surface topography has on cell–scaffold interactions. A systematic approach following PRISMA, GRADE, PICO, and other standard methodological frameworks for systematic reviews was used. Different topographic interventions and their effects on cell–scaffold interactions were analyzed. Results indicate that nanopores and roughness on fiber surfaces seem to improve proliferation and adhesion of cells. The quality of the evidence is different for each studied cell–scaffold interaction, and for each studied morphological attribute. The evidence points to improvements in cell–scaffold interactions on most morphologically complex fiber surfaces. The discussion includes an in-depth evaluation of the indirectness of the evidence, as well as the potentially involved publication bias. Insights and suggestions about dose-dependency relationship, as well as the effect on particular cell and polymer types, are presented. It is concluded that topographical alterations to the fiber surface should be further studied, since results so far are promising.
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Affiliation(s)
- Alex Lopez Marquez
- Faculty of Engineering and Health, University of Applied Sciences and Arts, 37085 Göttingen, Germany; (A.L.M.); (C.G.)
| | - Iván Emilio Gareis
- Laboratorio de Cibernética, Departamento de Bioingeniería, Facultad de Ingeniería, Universidad Nacional de Entre Ríos, Oro Verde 3100, Argentina;
| | - Fernando José Dias
- Research Centre for Dental Sciences CICO, Department of Integral Adults Dentistry, Dental School, Universidad de La Frontera, Temuco 4811230, Chile;
| | - Christoph Gerhard
- Faculty of Engineering and Health, University of Applied Sciences and Arts, 37085 Göttingen, Germany; (A.L.M.); (C.G.)
| | - María Florencia Lezcano
- Laboratorio de Cibernética, Departamento de Bioingeniería, Facultad de Ingeniería, Universidad Nacional de Entre Ríos, Oro Verde 3100, Argentina;
- Research Centre for Dental Sciences CICO, Department of Integral Adults Dentistry, Dental School, Universidad de La Frontera, Temuco 4811230, Chile;
- Correspondence:
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12
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Camarero‐Espinosa S, Carlos‐Oliveira M, Liu H, Mano JF, Bouvy N, Moroni L. 3D Printed Dual-Porosity Scaffolds: The Combined Effect of Stiffness and Porosity in the Modulation of Macrophage Polarization. Adv Healthc Mater 2022; 11:e2101415. [PMID: 34719861 DOI: 10.1002/adhm.202101415] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 10/09/2021] [Indexed: 01/04/2023]
Abstract
Tissue regeneration evolves toward the biofabrication of sophisticated 3D scaffolds. However, the success of these will be contingent to their capability to integrate within the host. The control of the mechanical or topographical properties of the implant appears as an ideal method to modulate the immune response. However, the interplay between these properties is yet not clear. Dual-porosity scaffolds with varying mechanical and topographical features are created, and their immunomodulatory properties in rat alveolar macrophages in vitro and in vivo in a rat subcutaneous model are evaluated. Scaffolds are fabricated via additive manufacturing and thermally induced phase separation methods from two copolymers with virtually identical chemistries, but different stiffness. The introduction of porosity enables the modulation of macrophages toward anti-inflammatory phenotypes, with secretion of IL-10 and TGF-β. Soft scaffolds (<5 kPa) result in a pro-inflammatory phenotype in contrast to stiffer (>40 kPa) scaffolds of comparable porosities supporting a pro-healing phenotype, which appears to be related to the surface spread area of cells. In vivo, stiff scaffolds integrate, while softer scaffolds appear encapsulated after three weeks of implantation, resulting in chronic inflammation after six weeks. The results demonstrate the importance of evaluating the interplay between topography and stiffness of candidate scaffolds.
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Affiliation(s)
- Sandra Camarero‐Espinosa
- MERLN Institute for Technology‐Inspired Regenerative Medicine Complex Tissue Regeneration Department Maastricht University P.O. Box 616 Maastricht 6200MD The Netherlands
- POLYMAT University of the Basque Country UPV/EHU Avenida Tolosa 72, Donostia/San Sebastián Gipuzkoa 20018 Spain
- IKERBASQUE Basque Foundation for Science Bilbao 48009 Spain
| | - Maria Carlos‐Oliveira
- MERLN Institute for Technology‐Inspired Regenerative Medicine Complex Tissue Regeneration Department Maastricht University P.O. Box 616 Maastricht 6200MD The Netherlands
| | - Hong Liu
- Department of General Surgery Maastricht University Medical Center P.O. Box 616 Maastricht 6200MD The Netherlands
| | - João F. Mano
- Department of Chemistry CICECO – Aveiro Institute of Materials University of Aveiro Aveiro 3810‐193 Portugal
| | - Nicole Bouvy
- Department of General Surgery Maastricht University Medical Center P.O. Box 616 Maastricht 6200MD The Netherlands
| | - Lorenzo Moroni
- MERLN Institute for Technology‐Inspired Regenerative Medicine Complex Tissue Regeneration Department Maastricht University P.O. Box 616 Maastricht 6200MD The Netherlands
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El-Aassar MR, Ibrahim OM, Al-Oanzi ZH. Biotechnological Applications of Polymeric Nanofiber Platforms Loaded with Diverse Bioactive Materials. Polymers (Basel) 2021; 13:3734. [PMID: 34771291 PMCID: PMC8586957 DOI: 10.3390/polym13213734] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 10/23/2021] [Accepted: 10/24/2021] [Indexed: 02/07/2023] Open
Abstract
This review article highlights the critical research and formative works relating to nanofiber composites loaded with bioactive materials for diverse applications, and discusses the recent research on the use of electrospun nanofiber incorporating bioactive compounds such as essential oils, herbal bioactive components, plant extracts, and metallic nanoparticles. Inevitably, with the common advantages of bioactive components and polymer nanofibers, electrospun nanofibers containing bioactive components have attracted intense interests for their applications in biomedicine and cancer treatment. Many studies have only concentrated on the production and performance of electrospun nanofiber loaded with bioactive components; in this regard, the features of different types of electrospun nanofiber incorporating a wide variety of bioactive compounds and their developing trends are summarized and assessed in the present article, as is the feasible use of nanofiber technology to produce products on an industrial scale in different applications.
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Affiliation(s)
- M. R. El-Aassar
- Department of Chemistry, College of Science, Jouf University, Sakaka 75471, Saudi Arabia
- Polymer Materials Research Department, Advanced Technology and New Material Institute, City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City, Alexandria 21934, Egypt
| | - Omar M. Ibrahim
- Department of Medicine, Division of Oncology, Washington University School of Medicine, St. Louis, MO 63110, USA;
| | - Ziad H. Al-Oanzi
- Department of Clinical Laboratories Sciences, College of Applied Medical Sciences, Jouf University, Sakaka 75471, Saudi Arabia
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14
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Gao Y, Callanan A. Influence of surface topography on PCL electrospun scaffolds for liver tissue engineering. J Mater Chem B 2021; 9:8081-8093. [PMID: 34491259 PMCID: PMC8493469 DOI: 10.1039/d1tb00789k] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 08/24/2021] [Indexed: 01/16/2023]
Abstract
Severe liver disease is one of the most common causes of death globally. Currently, whole organ transplantation is the only therapeutic method for end-stage liver disease treatment, however, the need for donor organs far outweighs demand. Recently liver tissue engineering is starting to show promise for alleviating part of this problem. Electrospinning is a well-known method to fabricate a nanofibre scaffold which mimics the natural extracellular matrix that can support cell growth. This study aims to investigate liver cell responses to topographical features on electrospun fibres. Scaffolds with large surface depression (2 μm) (LSD), small surface depression (0.37 μm) (SSD), and no surface depression (NSD) were fabricated by using a solvent-nonsolvent system. A liver cell line (HepG2) was seeded onto the scaffolds for up to 14 days. The SSD group exhibited higher levels of cell viability and DNA content compared to the other groups. Additionally, the scaffolds promoted gene expression of albumin, with all cases having similar levels, while the cell growth rate was altered. Furthermore, the scaffold with depressions showed 0.8 MPa higher ultimate tensile strength compared to the other groups. These results suggest that small depressions might be preferred by HepG2 cells over smooth and large depression fibres and highlight the potential for tailoring liver cell responses.
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Affiliation(s)
- Yunxi Gao
- Institute of Bioengineering, School of Engineering, The University of Edinburgh, Edinburgh, UK.
| | - Anthony Callanan
- Institute of Bioengineering, School of Engineering, The University of Edinburgh, Edinburgh, UK.
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15
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Xi Y, Sharma PK, Kaper HJ, Choi CH. Tribological Properties of Micropored Poly(2-hydroxyethyl methacrylate) Hydrogels in a Biomimetic Aqueous Environment. ACS APPLIED MATERIALS & INTERFACES 2021; 13:41473-41484. [PMID: 34449208 DOI: 10.1021/acsami.1c13718] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The applications of hydrogels in tissue engineering as implants have rapidly grown in the last decade. However, the tribological properties of hydrogels under physiologically relevant conditions, especially those of textured hydrogels, have remained largely unknown due to the complexity of their mechanical and chemical properties. In this study, we experimentally investigated the tribological properties of micopored poly(2-hydroxyethyl methacrylate) (pHEMA) with the lateral pore dimensions varied compared to untextured pHEMA, the most commonly used hydrogel in ophthalmology, under physiologically relevant conditions. The pHEMA specimens were slid against a smooth glass curve under varying loads (6-60 mN, leading to an average contact pressure of 10-21 kPa) and sliding speeds (1-10 mm/s) in phosphate-buffered saline (pH 7.4) at 33 °C to mimic the physiological conditions in human eyes. At relatively low loads and sliding speeds (e.g., 6 mN and 1 mm/s), the micopored pHEMA did not reduce the dissipated frictional energy significantly. However, at relatively high loads and sliding speeds (e.g., 60 mN and 100 mm/s), the micopored pHEMA resulted in significantly lower frictional energy (reduced by up to 68%) dissipation than the untextured pHEMA. The effect was more pronounced with the micropores with smaller dimensions. These are attributed to the greater amount and retentivity of the interfacial fluid supported by the free water squeezed out of the micropores with the smaller dimensions under the higher load and sliding speed. These results suggest that the use of micropore texturing on hydrogels in practice, such as for ocular applications, can be leveraged to reduce friction and wear under physiological conditions and hence lower the chance of inflammation near eye implants or keratoprosthesis.
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Affiliation(s)
- Yiwen Xi
- Department of Mechanical Engineering, Stevens Institute of Technology, Castle Point on Hudson, Hoboken, New Jersey 07030, United States
- Department of Biomedical Engineering (FB40), University of Groningen and University Medical Center Groningen, Antonius Deusinglaan 1, Groningen 9713AV, The Netherlands
| | - Prashant Kumar Sharma
- Department of Biomedical Engineering (FB40), University of Groningen and University Medical Center Groningen, Antonius Deusinglaan 1, Groningen 9713AV, The Netherlands
| | - Hans Jan Kaper
- Department of Biomedical Engineering (FB40), University of Groningen and University Medical Center Groningen, Antonius Deusinglaan 1, Groningen 9713AV, The Netherlands
| | - Chang-Hwan Choi
- Department of Mechanical Engineering, Stevens Institute of Technology, Castle Point on Hudson, Hoboken, New Jersey 07030, United States
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16
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Xuan H, Li B, Xiong F, Wu S, Zhang Z, Yang Y, Yuan H. Tailoring Nano-Porous Surface of Aligned Electrospun Poly (L-Lactic Acid) Fibers for Nerve Tissue Engineering. Int J Mol Sci 2021; 22:ijms22073536. [PMID: 33805568 PMCID: PMC8036984 DOI: 10.3390/ijms22073536] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 03/21/2021] [Accepted: 03/27/2021] [Indexed: 12/17/2022] Open
Abstract
Despite the existence of many attempts at nerve tissue engineering, there is no ideal strategy to date for effectively treating defective peripheral nerve tissue. In the present study, well-aligned poly (L-lactic acid) (PLLA) nanofibers with varied nano-porous surface structures were designed within different ambient humidity levels using the stable jet electrospinning (SJES) technique. Nanofibers have the capacity to inhibit bacterial adhesion, especially with respect to Staphylococcus aureus (S. aureus). It was noteworthy to find that the large nano-porous fibers were less detrimentally affected by S. aureus than smaller fibers. Large nano-pores furthermore proved more conducive to the proliferation and differentiation of neural stem cells (NSCs), while small nano-pores were more beneficial to NSC migration. Thus, this study concluded that well-aligned fibers with varied nano-porous surface structures could reduce bacterial colonization and enhance cellular responses, which could be used as promising material in tissue engineering, especially for neuro-regeneration.
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Affiliation(s)
- Hongyun Xuan
- School of Life Sciences, Nantong University, Nantong 226019, China; (H.X.); (B.L.); (F.X.); (S.W.); (Z.Z.)
| | - Biyun Li
- School of Life Sciences, Nantong University, Nantong 226019, China; (H.X.); (B.L.); (F.X.); (S.W.); (Z.Z.)
| | - Feng Xiong
- School of Life Sciences, Nantong University, Nantong 226019, China; (H.X.); (B.L.); (F.X.); (S.W.); (Z.Z.)
| | - Shuyuan Wu
- School of Life Sciences, Nantong University, Nantong 226019, China; (H.X.); (B.L.); (F.X.); (S.W.); (Z.Z.)
| | - Zhuojun Zhang
- School of Life Sciences, Nantong University, Nantong 226019, China; (H.X.); (B.L.); (F.X.); (S.W.); (Z.Z.)
| | - Yumin Yang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226001, China
- Correspondence: (Y.Y.); (H.Y.)
| | - Huihua Yuan
- School of Life Sciences, Nantong University, Nantong 226019, China; (H.X.); (B.L.); (F.X.); (S.W.); (Z.Z.)
- Correspondence: (Y.Y.); (H.Y.)
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17
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Johnson PM, Knewtson KE, Hodge JG, Lehtinen JM, Trofimoff AS, Fritz DJ, Robinson JL. Surfactant location and internal phase volume fraction dictate emulsion electrospun fiber morphology and modulate drug release and cell response. Biomater Sci 2021; 9:1397-1408. [PMID: 33393536 PMCID: PMC7904618 DOI: 10.1039/d0bm01751e] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/30/2023]
Abstract
Emulsion electrospinning is a versatile technique used to create fibrous meshes for applications in drug delivery and tissue engineering. In this study, the effects of surfactant and increasing internal phase volume fraction on emulsion electrospun fiber morphology were investigated. The fiber diameter, surface topography, internal architecture, mesh hydrophobicity, and fiber volume fraction were all characterized and the resulting effects on model drug release and cell response were determined. Surfactant relocation to the fiber surface resulted in alterations to fiber surface topography and internal morphology, increased rate of water adsorption into the mesh, and reduced burst effects of drug release. Increasing the internal phase volume fraction within the emulsion resulted in minimal change to fiber diameter, surface morphology, fiber volume fraction, and rate of water adsorption illustrating the ability to increase drug loading without affecting fiber properties. Lastly, all meshes promoted cell adhesion and good viability with a trend of increased MTT absorbance from cells on the surfactant and emulsion fibers possibly suggesting that an increase in surface area via smaller fiber diameter and fiber volume fraction increases metabolic activity. Overall, these studies indicate that fiber morphology and mesh hydrophobicity can be tuned by controlling surfactant location within fibers and internal phase volume fraction. Modulating fiber properties within the emulsion electrospun mesh is important to achieve controlled drug release and cell response for tissue engineering applications.
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Affiliation(s)
| | - Kelsey E Knewtson
- Department of Chemical and Petroleum Engineering, University of Kansas, USA
| | - Jacob G Hodge
- Bioengineering Graduate Program, University of Kansas, USA.
| | - Justin M Lehtinen
- Department of Chemical and Petroleum Engineering, University of Kansas, USA
| | - Anna S Trofimoff
- Department of Chemical and Petroleum Engineering, University of Kansas, USA
| | - D Joseph Fritz
- Department of Chemical and Petroleum Engineering, University of Kansas, USA
| | - Jennifer L Robinson
- Bioengineering Graduate Program, University of Kansas, USA. and Department of Chemical and Petroleum Engineering, University of Kansas, USA
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18
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Wang S, Hashemi S, Stratton S, Arinzeh TL. The Effect of Physical Cues of Biomaterial Scaffolds on Stem Cell Behavior. Adv Healthc Mater 2021; 10:e2001244. [PMID: 33274860 DOI: 10.1002/adhm.202001244] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 10/09/2020] [Indexed: 02/06/2023]
Abstract
Stem cells have been sought as a promising cell source in the tissue engineering field due to their proliferative capacity as well as differentiation potential. Biomaterials have been utilized to facilitate the delivery of stem cells in order to improve their engraftment and long-term viability upon implantation. Biomaterials also have been developed as scaffolds to promote stem cell induced tissue regeneration. This review focuses on the latter where the biomaterial scaffold is designed to provide physical cues to stem cells in order to promote their behavior for tissue formation. Recent work that explores the effect of scaffold physical properties, topography, mechanical properties and electrical properties, is discussed. Although still being elucidated, the biological mechanisms, including cell shape, focal adhesion distribution, and nuclear shape, are presented. This review also discusses emerging areas and challenges in clinical translation.
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Affiliation(s)
- Shuo Wang
- Department of Biomedical Engineering New Jersey Institute of Technology Newark NJ 07102 USA
| | - Sharareh Hashemi
- Department of Biomedical Engineering New Jersey Institute of Technology Newark NJ 07102 USA
| | - Scott Stratton
- Department of Biomedical Engineering New Jersey Institute of Technology Newark NJ 07102 USA
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19
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Abstract
The objective of this article is to provide an overview on the current development of micro- and nanoporous fiber processing and manufacturing technologies. Various methods for making micro- and nanoporous fibers including co-electrospinning, melt spinning, dry jet-wet quenching spinning, vapor deposition, template assisted deposition, electrochemical oxidization, and hydrothermal oxidization are presented. Comparison is made in terms of advantages and disadvantages of different routes for porous fiber processing. Characterization of the pore size, porosity, and specific area is introduced as well. Applications of porous fibers in various fields are discussed. The emphasis is put on their uses for energy storage components and devices including rechargeable batteries and supercapacitors.
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20
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<i>In Vitro</i> Characterization of Polyurethane-Carbon Nanotube Drug Eluting Composite Scaffold for Dental Tissue Engineering Application. JOURNAL OF BIOMIMETICS BIOMATERIALS AND BIOMEDICAL ENGINEERING 2020. [DOI: 10.4028/www.scientific.net/jbbbe.47.13] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Tooth loss due to periodontal disease, dental caries, trauma or a variety of genetic disorders causes an adverse inability in adult’s lives. It is proved that biodegradable composite scaffolds in dental tissue engineering could play crucial role. To inhibit bacterial colonization in dental structure noticeable research concerning the drug delivery approach has been administrated. Nanostructures retain and release drug molecules more efficiently and continuously than other microstructure. In the present research, composite electrospun nanofibers of polyurethane-Single-walled carbon nanotube (SWNT) by the different mass ratios of metronidazole benzoate were prepared. Physico-chemical characterization of scaffolds including Scanning electron microscopy (SEM), uniaxial tensile testing and Ultraviolet-Visible (UV-Vis) spectroscopy analysis was operated. Culture of dental pulp stem cells (DPSCs) to evaluate cells behavior was carried out. The role of nanofiber diameters and drug content on releasing profile of the scaffolds was investigated. The median diameter of the nanofibrous scaffold was reduced from 330 ± 4 to 120 ± 4 nm. Ultimate stress and Young modulus of the scaffolds by enhancement of drug content increased from 0.28 ± 0.05 up to the 1.8 ± 0.05 MPa and 0.87 ± 0.05 up to the 4.4 ± 0.05 Mpa respectively. According to the result, prolonged and continuous releasing profile of the drug molecules was achieved. As the content of the drug increased, the drug was released continuously. It means that two parameters of fiber's diameter and drug ratio affected the releasing behavior of composite structures. Polyurethane-SWNT scaffolds contained metronidazole benzoate presented appropriate support of DPSCs adhesion and proliferation and biomimetic architecture like the structure of dental ECM.
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21
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Ranjan VD, Qiu L, Lee JWL, Chen X, Jang SE, Chai C, Lim KL, Tan EK, Zhang Y, Huang WM, Zeng L. A microfiber scaffold-based 3D in vitro human neuronal culture model of Alzheimer's disease. Biomater Sci 2020; 8:4861-4874. [PMID: 32789337 DOI: 10.1039/d0bm00833h] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Increasing evidence indicates superiority of three-dimensional (3D) in vitro cell culture systems over conventional two-dimensional (2D) monolayer cultures in mimicking native in vivo microenvironments. Tissue-engineered 3D culture models combined with stem cell technologies have advanced Alzheimer's disease (AD) pathogenesis studies. However, existing 3D neuronal models of AD overexpress mutant genes or have heterogeneities in composition, biological properties and cell differentiation stages. Here, we encapsulate patient induced pluripotent stem cell (iPSC) derived neural progenitor cells (NPC) in poly(lactic-co-glycolic acid) (PLGA) microtopographic scaffolds fabricated via wet electrospinning to develop a novel 3D culture model of AD. First, we enhanced cellular infiltration and distribution inside the scaffold by optimizing various process parameters such as fiber diameter, pore size, porosity and hydrophilicity. Next, we compared key neural stem cell features including viability, proliferation and differentiation in 3D culture with 2D monolayer controls. The 3D microfibrous substrate reduces cell proliferation and significantly accelerates neuronal differentiation within seven days of culture. Furthermore, 3D culture spontaneously enhanced pathogenic amyloid-beta 42 (Aβ42) and phospho-tau levels in differentiated neurons carrying familial AD (FAD) mutations, compared with age-matched healthy controls. Overall, our tunable scaffold-based 3D neuronal culture platform serves as a suitable in vitro model that robustly recapitulates and accelerates the pathogenic characteristics of FAD-iPSC derived neurons.
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Affiliation(s)
- Vivek Damodar Ranjan
- NTU Institute for Health Technologies, Interdisciplinary Graduate School, Nanyang Technological University, Singapore 639798, Singapore
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22
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Oh YS, Choi MH, Shin JI, Maza PAMA, Kwak JY. Co-Culturing of Endothelial and Cancer Cells in a Nanofibrous Scaffold-Based Two-Layer System. Int J Mol Sci 2020; 21:ijms21114128. [PMID: 32531897 PMCID: PMC7312426 DOI: 10.3390/ijms21114128] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 06/03/2020] [Accepted: 06/08/2020] [Indexed: 12/12/2022] Open
Abstract
Angiogenesis is critical for local tumor growth. This study aimed to develop a three-dimensional two-layer co-culture system to investigate effects of cancer cells on the growth of endothelial cells (ECs). Poly(ε-caprolactone) (PCL) nanofibrous membranes were generated via electrospinning of PCL in chloroform (C-PCL-M) and chloroform and dimethylformamide (C/DMF-PCL-M). We assembled a two-layer co-culture system using C-PCL-M and C/DMF-PCL-M for EC growth in the upper layer with co-cultured cancer cells in the lower layer. In the absence of vascular endothelial growth factor (VEGF), growth of bEND.3 ECs decreased on C/DMF-PCL-M but not on C-PCL-M with time. Growth of bEND.3 cells on C/DMF-PCL-M was enhanced through co-culturing of CT26 cancer cells and enhanced growth of bEND.3 cells was abrogated with anti-VEGF antibodies and sorafenib. However, EA.hy926 ECs displayed steady growth and proliferation on C/DMF-PCL-M, and their growth was not further increased through co-culturing of cancer cells. Moreover, chemical hypoxia in CT26 cancer cells upon treatment with CoCl2 enhanced the growth of co-cultured bEND.3 cells in the two-layer system. Thus, EC growth on the nanofibrous scaffold is dependent on the types of ECs and composition of nanofibers and this co-culture system can be used to analyze EC growth induced by cancer cells.
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Affiliation(s)
- Ye-Seul Oh
- Department of Pharmacology, School of Medicine, Ajou University, Suwon 16499, Korea;
- Department of Biomedical Sciences, The Graduate School, Ajou University, Suwon 16499, Korea; (M.-H.C.); (J.-I.S.); (P.A.M.A.M.)
| | - Min-Ho Choi
- Department of Biomedical Sciences, The Graduate School, Ajou University, Suwon 16499, Korea; (M.-H.C.); (J.-I.S.); (P.A.M.A.M.)
- Immune Network Pioneer Research Center & 3D Immune System Imaging Core Center, Ajou University, Suwon 16499, Korea
| | - Jung-In Shin
- Department of Biomedical Sciences, The Graduate School, Ajou University, Suwon 16499, Korea; (M.-H.C.); (J.-I.S.); (P.A.M.A.M.)
| | - Perry Ayn Mayson A. Maza
- Department of Biomedical Sciences, The Graduate School, Ajou University, Suwon 16499, Korea; (M.-H.C.); (J.-I.S.); (P.A.M.A.M.)
| | - Jong-Young Kwak
- Department of Pharmacology, School of Medicine, Ajou University, Suwon 16499, Korea;
- Department of Biomedical Sciences, The Graduate School, Ajou University, Suwon 16499, Korea; (M.-H.C.); (J.-I.S.); (P.A.M.A.M.)
- Immune Network Pioneer Research Center & 3D Immune System Imaging Core Center, Ajou University, Suwon 16499, Korea
- Correspondence: ; Tel.: +82-31-219-5064
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23
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Akşit NN, Gürdap S, İşoğlu SD, İşoğlu İA. Preparation of antibacterial electrospun poly(D, L-lactide-co-glycolide)/gelatin blend membranes containing Hypericum capitatum var. capitatum. INT J POLYM MATER PO 2020. [DOI: 10.1080/00914037.2020.1765354] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Nazende Nur Akşit
- Bioengineering Department, Faculty of Life and Natural Sciences, Abdullah Gül University, Kayseri, Turkey
| | - Seda Gürdap
- Bioengineering Department, Faculty of Life and Natural Sciences, Abdullah Gül University, Kayseri, Turkey
| | - Sevil Dinçer İşoğlu
- Bioengineering Department, Faculty of Life and Natural Sciences, Abdullah Gül University, Kayseri, Turkey
| | - İsmail Alper İşoğlu
- Bioengineering Department, Faculty of Life and Natural Sciences, Abdullah Gül University, Kayseri, Turkey
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24
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Zhou P, Chu G, Yuan Z, Wang H, Zhang W, Mao Y, Zhu X, Chen W, Yang H, Li B. Regulation of differentiation of annulus fibrosus-derived stem cells using heterogeneous electrospun fibrous scaffolds. J Orthop Translat 2020; 26:171-180. [PMID: 33437636 PMCID: PMC7773966 DOI: 10.1016/j.jot.2020.02.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 02/02/2020] [Accepted: 02/06/2020] [Indexed: 01/07/2023] Open
Abstract
Background Tissue engineering of the annulus fibrosus (AF) shows promise as a treatment for patients with degenerative disc disease (DDD). However, it remains challenging due to the intrinsic heterogeneity of AF tissue. Fabrication of scaffolds recapitulating the specific cellular, componential, and microstructural features of AF, therefore, is critical to successful AF tissue regeneration. Methods Poly-L-lactic acid (PLLA) fibrous scaffolds with various fiber diameters and orientation were prepared to mimic the microstructural characteristics of AF tissue using electrospinning technique. AF-derived stem cells (AFSCs) were cultured on the PLLA fibrous scaffolds for 7 days. Results The morphology of AFSCs significantly varied when cultured on the scaffolds with various fiber diameters and orientation. AFSCs were nearly round on scaffolds with small fibers. However, they became spindle-shaped on scaffolds with large fibers. Meanwhile, upregulated expression of collagen-I gene happened in cells cultured on scaffolds with large fibers, while enhanced expression of collagen-II and aggrecan genes was seen on scaffolds with small fibers. The production of related proteins also showed similar trends. Further, culturing AFSCs on a heterogeneous scaffold by overlaying membranes with different fiber sizes led to the formation of a hierarchical structure approximating native AF tissue. Conclusion Findings from this study demonstrate that fibrous scaffolds with different fiber sizes effectively promoted the differentiation of AFSCs into specific cells similar to the types of cells at various AF zones. It also provides a valuable reference for regulation of cell differentiation and fabrication of engineered tissues with complex hierarchical structures using the physical cues of scaffolds. The translational potential of this article Effective AF repair is an essential need for treating degenerative disc disease. Tissue engineering is a promising approach to achieving tissue regeneration and restoring normal functions of tissues. By mimicking the key structural features of native AF tissue, including fiber size and alignment, this study deciphered the effect of scaffold materials on the cell differentiation and extracellular matrix deposition, which provides a solid basis for designing new strategies toward more effective AF repair and regeneration.
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Affiliation(s)
- Pinghui Zhou
- Department of Orthopedics, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China.,Anhui Province Key Laboratory of Tissue Transplantation, School of Life Sciences, Bengbu Medical College, Bengbu, Anhui, China
| | - Genglei Chu
- Departments of Orthopaedic Surgery and Urology, The First Affiliated Hospital, Orthopedic Institute, Medical College, Soochow University, Suzhou, Jiangsu, China
| | - Zhangqin Yuan
- Departments of Orthopaedic Surgery and Urology, The First Affiliated Hospital, Orthopedic Institute, Medical College, Soochow University, Suzhou, Jiangsu, China
| | - Huan Wang
- Departments of Orthopaedic Surgery and Urology, The First Affiliated Hospital, Orthopedic Institute, Medical College, Soochow University, Suzhou, Jiangsu, China
| | - Weidong Zhang
- Departments of Orthopaedic Surgery and Urology, The First Affiliated Hospital, Orthopedic Institute, Medical College, Soochow University, Suzhou, Jiangsu, China
| | - Yingji Mao
- Anhui Province Key Laboratory of Tissue Transplantation, School of Life Sciences, Bengbu Medical College, Bengbu, Anhui, China
| | - Xuesong Zhu
- Departments of Orthopaedic Surgery and Urology, The First Affiliated Hospital, Orthopedic Institute, Medical College, Soochow University, Suzhou, Jiangsu, China
| | - Weiguo Chen
- Departments of Orthopaedic Surgery and Urology, The First Affiliated Hospital, Orthopedic Institute, Medical College, Soochow University, Suzhou, Jiangsu, China
| | - Huilin Yang
- Departments of Orthopaedic Surgery and Urology, The First Affiliated Hospital, Orthopedic Institute, Medical College, Soochow University, Suzhou, Jiangsu, China
| | - Bin Li
- Departments of Orthopaedic Surgery and Urology, The First Affiliated Hospital, Orthopedic Institute, Medical College, Soochow University, Suzhou, Jiangsu, China
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Dou J, Wang Y, Jin X, Li P, Wang L, Yuan J, Shen J. PCL/sulfonated keratin mats for vascular tissue engineering scaffold with potential of catalytic nitric oxide generation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 107:110246. [DOI: 10.1016/j.msec.2019.110246] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 09/23/2019] [Accepted: 09/23/2019] [Indexed: 11/30/2022]
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Naderi P, Zarei M, Karbasi S, Salehi H. Evaluation of the effects of keratin on physical, mechanical and biological properties of poly (3-hydroxybutyrate) electrospun scaffold: Potential application in bone tissue engineering. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109502] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Li W, Huang L, Zhang J, Lin B, Huang Z, Li Y. PLLA/POSS Nanofibers Loaded with Multitargeted pANG Composite Nanoparticles for Promotion of Vascularization in Shear Flow. Macromol Biosci 2019; 20:e1900204. [PMID: 31800174 DOI: 10.1002/mabi.201900204] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Revised: 09/26/2019] [Indexed: 11/12/2022]
Abstract
In vitro prevascularization is particularly important for the clinical application of tissue engineering scaffolds that require vascularization. The principal challenge is simulating the dynamic in vivo environment to promote the continuous growth of blood vessels. In this study, two targeting polypeptides are linked to the two ends of an amphiphilic block copolymer, polyethyleneimine-b-poly(lactide-co-3(S)-methyl-morpholine-2,5-dione)-b-polyethyleneimine (PEI-PLMD-PEI), and self-assembled to form positively charged nanoparticles (NPs), which can bind to negatively charged pANG through electrostatic interactions; the polypeptides are finally loaded into PLLA/polyhedral oligomeric silsesquioxane (POSS) porous fibers to prepare untargeted nanofibers (unTFs), targeted porous nanofibers (TFBs), and targeted nanofiber bundles. The effects of the porous nanofibers on human umbilical vein endothelial cell (HUVEC) transfection, spreading, proliferation, morphology, and expression of related factors are investigated under the action of shear flow force. The results show that the PLLA/POSS nanofibers can maintain stable release of multitargeted NPs for nearly 45 days. Both the dual-targeted porous NPs and shear flow improve the pANG transfection efficiency and promote cell proliferation, and they have a good synergistic effect. These results provide a potential strategy for designing HUVEC-specific gene carriers and using shear flow to enhance endothelialization.
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Affiliation(s)
- Wenqiang Li
- Guangdong Provincial Engineering Technology Research Center for Sports Assistive Devices, Guangzhou Sport University, Guangzhou, 510632, China
| | - Lin Huang
- Guangdong Provincial Engineering Technology Research Center for Sports Assistive Devices, Guangzhou Sport University, Guangzhou, 510632, China
| | - Jiehong Zhang
- Rehabilitation Section, Na'Ao Peopole's Hospital, ShenZhen, 518121, China
| | - Beiman Lin
- Guangdong Provincial Engineering Technology Research Center for Sports Assistive Devices, Guangzhou Sport University, Guangzhou, 510632, China
| | - Zhiguan Huang
- Guangdong Provincial Engineering Technology Research Center for Sports Assistive Devices, Guangzhou Sport University, Guangzhou, 510632, China
| | - Yuhe Li
- Guangdong Provincial Engineering Technology Research Center for Sports Assistive Devices, Guangzhou Sport University, Guangzhou, 510632, China
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Affiliation(s)
- Chao Huang
- Department of Materials, Loughborough University, Loughborough, UK
| | - Noreen L. Thomas
- Department of Materials, Loughborough University, Loughborough, UK
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Guo Y, Zhou W, Wang L, Dong Y, Yu J, Li X, Ding B. Stretchable PDMS Embedded Fibrous Membranes Based on an Ethanol Solvent System for Waterproof and Breathable Applications. ACS APPLIED BIO MATERIALS 2019; 2:5949-5956. [DOI: 10.1021/acsabm.9b00875] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Yuxia Guo
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Wen Zhou
- College of Textiles, Donghua University, Shanghai 201620, China
| | - Lihuan Wang
- College of Textiles, Donghua University, Shanghai 201620, China
| | - Yuping Dong
- College of Textiles, Donghua University, Shanghai 201620, China
| | - Jianyong Yu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
- College of Textiles, Donghua University, Shanghai 201620, China
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai 200051, China
| | - Xiaoran Li
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai 200051, China
| | - Bin Ding
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
- College of Textiles, Donghua University, Shanghai 201620, China
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai 200051, China
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Innovative tailor made dextran based membranes with excellent non-inflammatory response: In vivo assessment. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 107:110243. [PMID: 31761159 DOI: 10.1016/j.msec.2019.110243] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2019] [Revised: 09/10/2019] [Accepted: 09/19/2019] [Indexed: 11/23/2022]
Abstract
In this work, dextran based membranes with potential to be used as implantable devices in Tissue Engineering and Regenerative Medicine (TERM) were prepared by a straightforward strategy. Briefly, two polymers approved by the Food and Drug Administration, viz. dextran and poly(ε-caprolactone) (PCL) were functionalized with methacrylate moieties, and subjected to photocrosslinking. Employing different weight ratios of each polymer in the formulations allowed to obtain transparent membranes with tunable physicochemical properties and low adverse host tissue response. Independently of the material, all formulations have shown to be thermally stable up to 300 °C whilst variations in the polymer ratio resulted in membranes with different glass transition temperatures (Tg) and flexibility. The swelling capacity ranged from 50% to 200%. On the other hand, in vitro hydrolytic degradation did not show to be material-dependent and all membranes maintained their structural integrity for more than 30 days, losing only 8-12% of their initial weight. Preliminary in vitro biological tests did not show any cytotoxic effect on seeded human dental pulp stem cells (hDPSCs), suggesting that, in general, all membranes are capable of supporting cell adhesion and viability. The in vivo biocompatibility of membranes implanted subcutaneously in rats' dorsum indicate that M100/0 (100%wt dextran) and M25/75 (25 %wt dextran) formulations can be classified as "slight-irritant" and "non-irritant", respectively. From the histological analysis performed on the main tissue organs it was not possible to detect any signs of fibrosis or necrosis thereby excluding the presence of toxic degradation by-products deposited or accumulated in these tissues. In combination, these results suggest that the newly developed formulations hold great potential as engineered devices for biomedical applications, where the biological response of cells and tissues are greatly dependent on the physical and chemical cues provided by the substrate.
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Silk particles, microfibres and nanofibres: A comparative study of their functions in 3D printing hydrogel scaffolds. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 103:109784. [DOI: 10.1016/j.msec.2019.109784] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 05/17/2019] [Accepted: 05/20/2019] [Indexed: 01/16/2023]
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Gonçalves de Pinho AR, Odila I, Leferink A, van Blitterswijk C, Camarero-Espinosa S, Moroni L. Hybrid Polyester-Hydrogel Electrospun Scaffolds for Tissue Engineering Applications. Front Bioeng Biotechnol 2019; 7:231. [PMID: 31681736 PMCID: PMC6798037 DOI: 10.3389/fbioe.2019.00231] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Accepted: 09/06/2019] [Indexed: 11/13/2022] Open
Abstract
Electrospinning is an attractive fabrication process providing a cost-effective and straightforward technic to make extra-cellular matrix (ECM) mimicking scaffolds that can be used to replace or repair injured tissues and organs. Synthetic polymers as poly (ε-caprolactone) (PCL) and poly (ethylene oxide terephthalate)-poly(butylene terephthalate) (PEOT/PBT) have been often used to produce scaffolds due to their good processability, mechanical properties, and suitable biocompatibility. While synthetic polymers can mimic the physical features of native ECM, natural polymers like alginate are better suited to recapitulate its hydrated state or introduce functional groups that are recognized by cells (e.g., -NH2). Thus, this study aims at creating electrospun meshes made of blended synthetic and natural polymers for tissue engineering applications. Polyethylene oxide (PEO), PCL, and PEOT/PBT were used as a carrier of Alginate. Scaffolds were electrospun at different flow rates and distances between spinneret and collector (air gap), and the resulting meshes were characterized in terms of fiber morphology, diameter, and mesh inter-fiber pore size. The fiber diameter increased with increasing flow rate, while there was no substantial influence of the air gap. On the other hand, the mesh pore size increased with increasing air gap, while the effect of flow rate was not significant. Cross-linking and washing of alginate electrospun scaffolds resulted in smaller fiber diameter. These newly developed scaffolds may find useful applications for tissue engineering strategies as they resemble physical and chemical properties of tissue ECM. Human Dermal Fibroblasts were cultured on PCL and PCL/Alginate scaffolds in order to create a dermal substitute.
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Affiliation(s)
- Ana Rita Gonçalves de Pinho
- Tissue Regeneration Department, Institute for BioMedical Technology and Technical Medicine, University of Twente, Enschede, Netherlands
| | - Ines Odila
- Tissue Regeneration Department, Institute for BioMedical Technology and Technical Medicine, University of Twente, Enschede, Netherlands
| | - Anne Leferink
- Tissue Regeneration Department, Institute for BioMedical Technology and Technical Medicine, University of Twente, Enschede, Netherlands
| | - Clemens van Blitterswijk
- Tissue Regeneration Department, Institute for BioMedical Technology and Technical Medicine, University of Twente, Enschede, Netherlands
- MERLN Institute for Technology-inspired Regenerative Medicine, Complex Tissue Regeneration Department, Maastricht University, Maastricht, Netherlands
| | - Sandra Camarero-Espinosa
- MERLN Institute for Technology-inspired Regenerative Medicine, Complex Tissue Regeneration Department, Maastricht University, Maastricht, Netherlands
| | - Lorenzo Moroni
- Tissue Regeneration Department, Institute for BioMedical Technology and Technical Medicine, University of Twente, Enschede, Netherlands
- MERLN Institute for Technology-inspired Regenerative Medicine, Complex Tissue Regeneration Department, Maastricht University, Maastricht, Netherlands
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Aldemir Dikici B, Dikici S, Reilly GC, MacNeil S, Claeyssens F. A Novel Bilayer Polycaprolactone Membrane for Guided Bone Regeneration: Combining Electrospinning and Emulsion Templating. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E2643. [PMID: 31434207 PMCID: PMC6721100 DOI: 10.3390/ma12162643] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/06/2019] [Revised: 08/05/2019] [Accepted: 08/16/2019] [Indexed: 01/08/2023]
Abstract
Guided bone regeneration is a common dental implant treatment where a barrier membrane (BM) is used between epithelial tissue and bone or bone graft to prevent the invasion of the fast-proliferating epithelial cells into the defect site to be able to preserve a space for infiltration of slower-growing bone cells into the periodontal defect site. In this study, a bilayer polycaprolactone (PCL) BM was developed by combining electrospinning and emulsion templating techniques. First, a 250 µm thick polymerised high internal phase emulsion (polyHIPE) made of photocurable PCL was manufactured and treated with air plasma, which was shown to enhance the cellular infiltration. Then, four solvent compositions were investigated to find the best composition for electrospinning a nanofibrous PCL barrier layer on PCL polyHIPE. The biocompatibility and the barrier properties of the electrospun layer were demonstrated over four weeks in vitro by histological staining. Following in vitro assessment of cell viability and cell migration, cell infiltration and the potential of PCL polyHIPE for supporting blood vessel ingrowth were further investigated using an ex-ovo chick chorioallantoic membrane assay. Our results demonstrated that the nanofibrous PCL electrospun layer was capable of limiting cell infiltration for at least four weeks, while PCL polyHIPE supported cell infiltration, calcium and mineral deposition of bone cells, and blood vessel ingrowth through pores.
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Affiliation(s)
- Betül Aldemir Dikici
- Department of Materials Science and Engineering, University of Sheffield, Kroto Research Institute, Sheffield S3 7HQ, UK
| | - Serkan Dikici
- Department of Materials Science and Engineering, University of Sheffield, Kroto Research Institute, Sheffield S3 7HQ, UK
| | - Gwendolen C Reilly
- Department of Materials Science and Engineering, University of Sheffield, INSIGNEO Institute for in silico Medicine, The Pam Liversidge Building, Sheffield S1 3JD, UK
| | - Sheila MacNeil
- Department of Materials Science and Engineering, University of Sheffield, Kroto Research Institute, Sheffield S3 7HQ, UK
| | - Frederik Claeyssens
- Department of Materials Science and Engineering, University of Sheffield, Kroto Research Institute, Sheffield S3 7HQ, UK.
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34
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Toloue EB, Karbasi S, Salehi H, Rafienia M. Potential of an electrospun composite scaffold of poly (3-hydroxybutyrate)-chitosan/alumina nanowires in bone tissue engineering applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 99:1075-1091. [DOI: 10.1016/j.msec.2019.02.062] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 12/08/2018] [Accepted: 02/15/2019] [Indexed: 01/18/2023]
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35
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Chen L, Wang S, Yu Q, Topham PD, Chen C, Wang L. A comprehensive review of electrospinning block copolymers. SOFT MATTER 2019; 15:2490-2510. [PMID: 30860535 DOI: 10.1039/c8sm02484g] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Electrospinning provides a versatile and cost-effective route for the generation of continuous nanofibres with high surface area-to-volume ratio from various polymers. In parallel, block copolymers (BCPs) are promising candidates for many diverse applications, where nanoscale operation is exploited, owing to their intrinsic self-assembling behaviour at these length scales. Judicious combination of BCPs (with their ability to make nanosized domains at equilibrium) and electrospinning (with its ability to create nano- and microsized fibres and particles) allows one to create BCPs with high surface area-to-volume ratio to deliver higher efficiency or efficacy in their given application. Here, we give a comprehensive overview of the wide range of reports on BCP electrospinning with focus placed on the use of molecular design alongside control over specific electrospinning type and post-treatment methodologies to control the properties of the resultant fibrous materials. Particular attention is paid to the applications of these materials, most notably, their use as biomaterials, separation membranes, sensors, and electronic materials.
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Affiliation(s)
- Lei Chen
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, South China University of Technology, Guangzhou 510640, China.
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36
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Omidinia-Anarkoli A, Rimal R, Chandorkar Y, Gehlen DB, Rose JC, Rahimi K, Haraszti T, De Laporte L. Solvent-Induced Nanotopographies of Single Microfibers Regulate Cell Mechanotransduction. ACS APPLIED MATERIALS & INTERFACES 2019; 11:7671-7685. [PMID: 30694648 DOI: 10.1021/acsami.8b17955] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The extracellular matrix (ECM) is a dynamic three-dimensional (3D) fibrous network, surrounding all cells in vivo. Fiber manufacturing techniques are employed to mimic the ECM but still lack the knowledge and methodology to produce single fibers approximating cell size with different surface topographies to study cell-material interactions. Using solvent-assisted spinning (SAS), the potential to continuously produce single microscale fibers with unlimited length, precise diameter, and specific surface topographies was demonstrated. By applying solvents with different solubilities and volatilities, fibers with smooth, grooved, and porous surface morphologies are produced. Due to their hierarchical structures, the porous fibers are the most hydrophobic, followed by the grooved and the smooth fibers. The fiber diameter is increased by increasing the polymer concentration or decreasing the collector rotational speed. Moreover, SAS offers the advantage to control the interfiber distance and angle to fabricate multilayered 3D constructs. This report shows for the first time that the micro- and nanoscale topographies of single fibers mechanically regulate cell behavior. Fibroblasts, grown on fibers with grooved topographical features, stretch and elongate more compared to smooth and porous fibers, whereas both porous and grooved fibers induce nuclear translocation of yes-associated protein. The presented technique, therefore, provides a unique platform to study the interaction between cells and single ECM-like fibers in a precise and reproducible manner, which is of great importance for new material developments in the field of tissue engineering.
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Affiliation(s)
| | - Rahul Rimal
- DWI-Leibniz Institute for Interactive Materials , Aachen 52074 , Germany
| | - Yashoda Chandorkar
- DWI-Leibniz Institute for Interactive Materials , Aachen 52074 , Germany
| | - David B Gehlen
- DWI-Leibniz Institute for Interactive Materials , Aachen 52074 , Germany
| | - Jonas C Rose
- DWI-Leibniz Institute for Interactive Materials , Aachen 52074 , Germany
| | - Khosrow Rahimi
- DWI-Leibniz Institute for Interactive Materials , Aachen 52074 , Germany
| | - Tamás Haraszti
- DWI-Leibniz Institute for Interactive Materials , Aachen 52074 , Germany
| | - Laura De Laporte
- DWI-Leibniz Institute for Interactive Materials , Aachen 52074 , Germany
- ITMC-Institute of Technical and Macromolecular Chemistry , RWTH Aachen University , Aachen 52074 , Germany
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Vanzanella V, Scatto M, Zant E, Sisani M, Bastianini M, Grizzuti N. The Rheology of PEOT/PBT Block Copolymers in the Melt State and in the Thermally-Induced Sol/Gel Transition. Implications on the 3D-Printing Bio-Scaffold Process. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E226. [PMID: 30634705 PMCID: PMC6356737 DOI: 10.3390/ma12020226] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 01/04/2019] [Accepted: 01/07/2019] [Indexed: 01/19/2023]
Abstract
Poly(ethyleneoxideterephthalate)/poly(butyleneterephthalate) (PEOT/PBT) segmented block copolymers are widely used for the manufacturing of 3D-printed bio-scaffolds, due to a combination of several properties, such as cell viability, bio-compatibility, and bio-degradability. Furthermore, they are characterized by a relatively low viscosity at high temperatures, which is desired during the injection stages of the printing process. At the same time, the microphase separated morphology generated by the demixing of hard and soft segments at intermediate temperatures allows for a quick transition from a liquid-like to a solid-like behavior, thus favoring the shaping and the dimensional stability of the scaffold. In this work, for the first time, the rheology of a commercial PEOT/PBT material is studied over a wide range of temperatures encompassing both the melt state and the phase transition regime. Non-isothermal viscoelastic measurements under oscillatory shear flow allow for a quantitative determination of the material processability in the melt state. Additionally, isothermal experiments below the order⁻disorder temperature are used to determine the temperature dependence of the phase transition kinetics. The importance of the rheological characterization when designing the 3D-printing scaffold process is also discussed.
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Affiliation(s)
- Veronica Vanzanella
- Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale, Università degli Studi di Napoli Federico II, Piazzale V. Tecchio 80, 80125 Napoli, Italy.
| | - Marco Scatto
- Nadir S.r.l., c/o Scientific Campus University Ca' Foscari Venezia, Via Torino 155b, 30172 Mestre, Italy.
| | - Erwin Zant
- PolyVation b.v., Kadijk 7d, 9747AT Groningen, The Netherlands.
| | - Michele Sisani
- Prolabin & Tefarm S.r.l., Via dell'Acciaio 9, 06134 Perugia, Italy.
| | - Maria Bastianini
- Prolabin & Tefarm S.r.l., Via dell'Acciaio 9, 06134 Perugia, Italy.
| | - Nino Grizzuti
- Dipartimento di Ingegneria Chimica, dei Materiali e della Produzione Industriale, Università degli Studi di Napoli Federico II, Piazzale V. Tecchio 80, 80125 Napoli, Italy.
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Sooriyaarachchi D, Wu J, Feng A, Islam M, Tan GZ. Hybrid Fabrication of Biomimetic Meniscus Scaffold by 3D Printing and Parallel Electrospinning. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.promfg.2019.06.216] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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39
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Grande S, Cools P, Asadian M, Van Guyse J, Onyshchenko I, Declercq H, Morent R, Hoogenboom R, De Geyter N. Fabrication of PEOT/PBT Nanofibers by Atmospheric Pressure Plasma Jet Treatment of Electrospinning Solutions for Tissue Engineering. Macromol Biosci 2018; 18:e1800309. [PMID: 30353664 DOI: 10.1002/mabi.201800309] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 09/26/2018] [Indexed: 01/13/2023]
Abstract
This study focuses on the enhanced electrospinning of 300-Polyethylene oxide-polyethylene oxide terephthalate/polybutylene terephthalate (PEOT/PBT). An atmospheric pressure plasma jet for liquid treatment is applied to a solution with 9 w/v% PEOT/PBT dissolved in either chloroform (CHCl3 ), CHCl3 + N,N-dimethylformamide (DMF), CHCl3 + methanol (MeOH), or CHCl3 + hexafluoroisopropanol (HFIP). For all conditions, the plasma-treated samples present better-quality fibers: less or no-beads and uniform fiber diameter distribution. Except for CHCl3 + DMF, no significant changes to the material bulk are detected, as shown with size exclusion chromatography (SEC). X-ray photoelectron spectroscopy (XPS) spectra performed on nanofibers record an increase in C-C bonds for the CHCl3 + DMF combination upon plasma modification, while a shift and slight increase in oxygen-containing bonds is found for the CHCl3 + HFIP and CHCl3 + MeOH mixtures. MTT assay shows no-cytotoxic effects for CHCl3 + DMF, while a better cellular adhesion is found on nanofibers from CHCl3 + MeOH and CHCl3 + HFIP. Among the examined additives, MeOH is preferable as it produces beadless electrospun nanofibers with an average diameter of 290 ± 100 nm without causing significant changes to the final nanofiber surface properties.
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Affiliation(s)
- Silvia Grande
- Department of Applied Physics, Research Unit Plasma Technology (RUPT), Faculty of Engineering and Architecture, Ghent University, Sint-Pietersnieuwstraat 41 B4, 9000, Ghent, Belgium
| | - Pieter Cools
- Department of Applied Physics, Research Unit Plasma Technology (RUPT), Faculty of Engineering and Architecture, Ghent University, Sint-Pietersnieuwstraat 41 B4, 9000, Ghent, Belgium
| | - Mahtab Asadian
- Department of Applied Physics, Research Unit Plasma Technology (RUPT), Faculty of Engineering and Architecture, Ghent University, Sint-Pietersnieuwstraat 41 B4, 9000, Ghent, Belgium
| | - Joachim Van Guyse
- Department of Organic and Macromolecular Chemistry, Supramolecular Chemistry Group, Faculty of Sciences, Ghent University, Krijgslaan 281 S4, 9000, Ghent, Belgium
| | - Iuliia Onyshchenko
- Department of Applied Physics, Research Unit Plasma Technology (RUPT), Faculty of Engineering and Architecture, Ghent University, Sint-Pietersnieuwstraat 41 B4, 9000, Ghent, Belgium
| | - Heidi Declercq
- Department of Basic Medical Sciences, Tissue Engineering Group, Faculty of Medicine and Health Sciences, Ghent University, De Pintelaan 185, B3, 9000, Ghent, Belgium
| | - Rino Morent
- Department of Applied Physics, Research Unit Plasma Technology (RUPT), Faculty of Engineering and Architecture, Ghent University, Sint-Pietersnieuwstraat 41 B4, 9000, Ghent, Belgium
| | - Richard Hoogenboom
- Department of Organic and Macromolecular Chemistry, Supramolecular Chemistry Group, Faculty of Sciences, Ghent University, Krijgslaan 281 S4, 9000, Ghent, Belgium
| | - Nathalie De Geyter
- Department of Applied Physics, Research Unit Plasma Technology (RUPT), Faculty of Engineering and Architecture, Ghent University, Sint-Pietersnieuwstraat 41 B4, 9000, Ghent, Belgium
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40
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Controlling the surface structure of electrospun fibers: Effect on endothelial cells and blood coagulation. Biointerphases 2018; 13:051001. [DOI: 10.1116/1.5047668] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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41
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Johnson CD, D'Amato AR, Puhl DL, Wich DM, Vesperman A, Gilbert RJ. Electrospun fiber surface nanotopography influences astrocyte-mediated neurite outgrowth. ACTA ACUST UNITED AC 2018; 13:054101. [PMID: 29762127 DOI: 10.1088/1748-605x/aac4de] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Aligned, electrospun fiber scaffolds provide topographical guidance for regenerating neurons and glia after central nervous system injury. To date, no study has explored how fiber surface nanotopography affects astrocyte response to fibrous scaffolds. Astrocytes play important roles in the glial scar, the blood brain barrier, and in maintaining homeostasis in the central nervous system. In this study, electrospun poly L-lactic acid fibers were engineered with smooth, pitted, or divoted surface nanotopography. Cortical or spinal cord primary rat astrocytes were cultured on the surfaces for either 1 or 3 d to examine the astrocyte response over time. The results showed that cortical astrocytes were significantly shorter and broader on the pitted and divoted fibers compared to those on smooth fibers. However, spinal cord astrocyte morphology was not significantly altered by the surface features. These findings indicate that astrocytes from unique anatomical locations respond differently to the presence of nanotopography. Western blot results show that the differences in morphology were not associated with significant changes in glial fibrillary acidicprotein (GFAP) or vinculin in either astrocyte population, suggesting that surface pits and divots do not induce a reactive phenotype in either cortical or spinal cord astrocytes. Finally, astrocytes were co-cultured with dorsal root ganglia to determine how the surfaces affected astrocyte-mediated neurite outgrowth. Astrocytes cultured on the fibers for shorter periods of time (1 d) generally supported longer neurite outgrowth. Pitted and divoted fibers restricted spinal cord astrocyte-mediated neurite outgrowth, while smooth fibers increased 3 d spinal cord astrocyte-mediated neurite outgrowth. In total, fiber surface nanotopography can influence astrocyte elongation and influence the capability of astrocytes to direct neurites. Therefore, fiber surface characteristics should be carefully controlled to optimize astrocyte-mediated axonal regeneration.
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Affiliation(s)
- Christopher D Johnson
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, 110 8th Street, Troy, NY, 12180-3590, United States of America. Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, 110 8th Street, Troy, NY, 12180-3590, United States of America
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42
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Abstract
Electrospinning is commonly used to produce polymeric nanofibers. Potential applications for such fibers include novel drug delivery systems, tissue engineering scaffolds, and filters. Electrospinning, however, has shortcomings such as needle clogging and limited ability to control the fiber-properties in a non-chemical manner. This study reports on an orifice-less technique that employs high-intensity focused ultrasound, i.e. ultrasound-enhanced electrospinning. Ultrasound bursts were used to generate a liquid protrusion with a Taylor cone from the surface of a polymer solution of polyethylene oxide. When the polymer was charged with a high negative voltage, nanofibers jetted off from the tip of the protrusion landed on an electrically grounded target held at a constant distance from the tip. Controlling the ultrasound characteristics permitted physical modification of the nanofiber topography at will without using supplemental chemical intervention. Possible applications of tailor-made fibers generated by ultrasound-enhanced electrospinning include pharmaceutical controlled-release applications and biomedical scaffolds with spatial gradients in fiber thickness and mechanical properties.
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43
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Li W, Wu D, Tan J, Liu Z, Lu L, Zhou C. A gene-activating skin substitute comprising PLLA/POSS nanofibers and plasmid DNA encoding ANG and bFGF promotes in vivo revascularization and epidermalization. J Mater Chem B 2018; 6:6977-6992. [DOI: 10.1039/c8tb02006j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A gene-activated porous nanofibrous scaffold for effectively promoting vascularization, epidermalization and dermal wound healing by sustained release of dual plasmid DNAs.
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Affiliation(s)
- Wenqiang Li
- Department of Materials Science and Engineering
- Jinan University
- Guangzhou 510632
- China
- College of Life Science and Technology
| | - Dongwei Wu
- Department of Materials Science and Engineering
- Jinan University
- Guangzhou 510632
- China
| | - Jianwang Tan
- Department of Materials Science and Engineering
- Jinan University
- Guangzhou 510632
- China
| | - Zhibin Liu
- Department of Materials Science and Engineering
- Jinan University
- Guangzhou 510632
- China
| | - Lu Lu
- Department of Materials Science and Engineering
- Jinan University
- Guangzhou 510632
- China
- Engineering Research Center of Artificial Organs and Materials
| | - Changren Zhou
- Department of Materials Science and Engineering
- Jinan University
- Guangzhou 510632
- China
- Engineering Research Center of Artificial Organs and Materials
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44
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Covell AD, Zeng Z, Mabe T, Wei J, Adamson A, LaJeunesse DR. Alternative SiO 2 Surface Direct MDCK Epithelial Behavior. ACS Biomater Sci Eng 2017; 3:3307-3317. [PMID: 33445372 DOI: 10.1021/acsbiomaterials.7b00645] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The mechanical interactions of cells are mediated through adhesive interactions. In this study, we examined the growth, cellular behavior, and adhesion of MDCK epithelial cells on three different SiO2 substrates: amorphous glass coverslips and the silicon oxide layers that grow on ⟨111⟩ and ⟨100⟩ wafers. While compositionally all three substrates are almost similar, differences in surface energy result in dramatic differences in epithelial cell morphology, cell-cell adhesion, cell-substrate adhesion, actin organization, and extracellular matrix (ECM) protein expression. We also observe striking differences in ECM protein binding to the various substrates due to the hydrogen bond interactions. Our results demonstrate that MDCK cells have a robust response to differences in substrates that is not obviated by nanotopography or surface composition and that a cell's response may manifest through subtle differences in surface energies of the materials. This work strongly suggests that other properties of a material other than composition and topology should be considered when interpreting and controlling interactions of cells with a substrate, whether it is synthetic or natural.
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Affiliation(s)
- Alan D Covell
- Department of Nanoscience, Joint School of Nanoscience and Nanoengineering, The University of North Carolina at Greensboro, 2907 East Gate City Blvd., Greensboro, North Carolina 27401, United States
| | - Zheng Zeng
- Department of Nanoscience, Joint School of Nanoscience and Nanoengineering, The University of North Carolina at Greensboro, 2907 East Gate City Blvd., Greensboro, North Carolina 27401, United States
| | - Taylor Mabe
- Department of Nanoscience, Joint School of Nanoscience and Nanoengineering, The University of North Carolina at Greensboro, 2907 East Gate City Blvd., Greensboro, North Carolina 27401, United States
| | - Jianjun Wei
- Department of Nanoscience, Joint School of Nanoscience and Nanoengineering, The University of North Carolina at Greensboro, 2907 East Gate City Blvd., Greensboro, North Carolina 27401, United States
| | - Amy Adamson
- Department of Biology, The University of North Carolina at Greensboro, 201 Eberhart Building, Greensboro, North Carolina 27402, United States
| | - Dennis R LaJeunesse
- Department of Nanoscience, Joint School of Nanoscience and Nanoengineering, The University of North Carolina at Greensboro, 2907 East Gate City Blvd., Greensboro, North Carolina 27401, United States
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45
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Chen H, Huang X, Zhang M, Damanik F, Baker MB, Leferink A, Yuan H, Truckenmüller R, van Blitterswijk C, Moroni L. Tailoring surface nanoroughness of electrospun scaffolds for skeletal tissue engineering. Acta Biomater 2017; 59:82-93. [PMID: 28690010 DOI: 10.1016/j.actbio.2017.07.003] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 06/21/2017] [Accepted: 07/03/2017] [Indexed: 11/19/2022]
Abstract
Electrospun scaffolds provide a promising approach for tissue engineering as they mimic the physical properties of extracellular matrix. Previous studies have demonstrated that electrospun scaffolds with porous features on the surface of single fibers, enhanced cellular attachment and proliferation. Yet, little is known about the effect of such topographical cues on cellular differentiation. Here, we aimed at investigating the influence of surface roughness of electrospun scaffolds on skeletal differentiation of human mesenchymal stromal cells (hMSCs). Scanning electron microscopy (SEM) and atomic force microscopy (AFM) analysis showed that the surface nanoroughness of fibers was successfully regulated via humidity control of the electrospinning environment. Gene expression analysis revealed that a higher surface roughness (roughness average (Ra)=71.0±11.0nm) supported more induction of osteogenic genes such as osteopontin (OPN), bone morphogenetic protein 2 (BMP2), and runt-related transcription factor 2 (RUNX2), while a lower surface roughness (Ra=14.3±2.5nm) demonstrated higher expression of other osteogenic genes including bone sialoprotein (BSP), collagen type I (COL1A1) and osteocalcin (OCN). Interestingly, a lower surface roughness (Ra=14.3±2.5nm) better supported chondrogenic gene expression of hMSCs at day 7 compared to higher surface roughness (Ra=71.0±11.0nm). Taken together, modulating surface roughness of 3D scaffolds appears to be a significant factor in scaffold design for the control of skeletal differentiation of hMSCs. STATEMENT OF SIGNIFICANCE Tissue engineering scaffolds having specific topographical cues offer exciting possibilities for stimulating cells differentiation and growth of new tissue. Although electrospun scaffolds have been extensively investigated in tissue engineering and regenerative medicine, little is known about the influence of introducing nanoroughness on their surface for cellular differentiation. The present study provides a method to engineer electrospun scaffolds with tailoring surface nanoroughness and investigates the effect of such topographical cues on the process of human mesenchymal stromal cells differentiation into osteoblasts and chondrocytes linages. This strategy may help the design of nanostructured scaffolds for skeletal tissue engineering.
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Affiliation(s)
- Honglin Chen
- Department of Complex Tissue Regeneration, MERLN Institute for Technology Inspired Regenerative Medicine, 6200 MD Maastricht, The Netherlands; MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, 7500AE Enschede, The Netherlands
| | - Xiaobin Huang
- MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, 7500AE Enschede, The Netherlands
| | - Minmin Zhang
- MESA+ Research Institute, University of Twente, 7500 AE Enschede, The Netherlands
| | - Febriyani Damanik
- Department of Complex Tissue Regeneration, MERLN Institute for Technology Inspired Regenerative Medicine, 6200 MD Maastricht, The Netherlands
| | - Matthew B Baker
- Department of Complex Tissue Regeneration, MERLN Institute for Technology Inspired Regenerative Medicine, 6200 MD Maastricht, The Netherlands
| | - Anne Leferink
- Department of Complex Tissue Regeneration, MERLN Institute for Technology Inspired Regenerative Medicine, 6200 MD Maastricht, The Netherlands
| | - Huipin Yuan
- Department of Complex Tissue Regeneration, MERLN Institute for Technology Inspired Regenerative Medicine, 6200 MD Maastricht, The Netherlands
| | - Roman Truckenmüller
- Department of Complex Tissue Regeneration, MERLN Institute for Technology Inspired Regenerative Medicine, 6200 MD Maastricht, The Netherlands
| | - Clemens van Blitterswijk
- Department of Complex Tissue Regeneration, MERLN Institute for Technology Inspired Regenerative Medicine, 6200 MD Maastricht, The Netherlands
| | - Lorenzo Moroni
- Department of Complex Tissue Regeneration, MERLN Institute for Technology Inspired Regenerative Medicine, 6200 MD Maastricht, The Netherlands.
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46
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Taskin MB, Xia D, Besenbacher F, Dong M, Chen M. Nanotopography featured polycaprolactone/polyethyleneoxide microfibers modulate endothelial cell response. NANOSCALE 2017; 9:9218-9229. [PMID: 28654129 DOI: 10.1039/c7nr03326e] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Among many physical properties, surface nanotopography has been found to strongly affect cell adhesion, migration and other functions. Accurate biological interpretation requires the nanotopography to be presented in a three-dimensional (3D) micro-environment. Herein, immiscible blends of polycaprolactone (PCL)/polyethyleneoxide (PEO) were electrospun into a grounded coagulation bath, resulting in macroporous microfibers with nanotopography featured surfaces. Variations in PCL/PEO ratios enabled tunable surface nanotopographic structures, from longitudinal submicron grooves to transverse nano-lamellae. Chemical composition, crystallinity and quantitative nanomechanical analysis confirmed that the interplay of the two semi-crystalline immiscible polymers and the pairing of miscible solvents/non-solvents in both the electrospinning solution and the bath solution were critical for the formation of the secondary structure. It was found that the nanotopography features promoted the proliferation of human umbilical vein endothelial cells (HUVECs) compared with their smooth film counterparts. An analysis of the cell adhesion related markers, vinculin and phosphorylated focal adhesion kinase (pFAK), further revealed that the nanotopographies enhanced the nascent adhesion complex formation compared with smooth PCL fibers, even in the scaffolds with a high PEO content, which is often considered as a non-adhesive material.
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Affiliation(s)
- Mehmet Berat Taskin
- Interdisiplinary Nanoscience Center (iNANO), Aarhus University, DK-8000 Aarhus C, Denmark.
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47
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Epoxy Resins Toughened with Surface Modified Epoxidized Natural Rubber Fibers by One-Step Electrospinning. MATERIALS 2017; 10:ma10050464. [PMID: 28772822 PMCID: PMC5459039 DOI: 10.3390/ma10050464] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 04/23/2017] [Accepted: 04/25/2017] [Indexed: 11/17/2022]
Abstract
Epoxidized natural rubber fibers (ERFs) are developed through one-step electrospinning and directly deposited into epoxy resins without collecting and distributing of fibers. The shape of ERFs shows rough surface due to different evaporation rate of solvent mixture consisting of chloroform and dichloromethane and the average diameter of ERFs is 6.2 µm. The increase of ERFs loading from 0 to 20 wt % into the epoxy resin increases the fracture strain significantly from 1.2% to 13% and toughness from 0.3 MPa to 1.9 MPa by a factor of 7. However, the tensile strength and Young’s modulus decrease about 34% from 58 MPa to 34 MPa and from 1.4 GPa to 0.9 GPa, respectively. Due to the crosslinking reactions between oxirane groups of ERFs and amine groups in the resin, surface roughness and the high aspect ratio of ERFs, ERFs result in more effective toughening effect with the minimum loss of tensile properties in epoxy resins.
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48
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Schaub NJ, D'Amato AR, Mason A, Corr DT, Harmon EY, Lennartz MR, Gilbert RJ. The effect of engineered nanotopography of electrospun microfibers on fiber rigidity and macrophage cytokine production. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2017; 28:1303-1323. [PMID: 28420296 DOI: 10.1080/09205063.2017.1321345] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Currently, it is unknown how the mechanical properties of electrospun fibers, and the presentation of surface nanotopography influence macrophage gene expression and protein production. By further elucidating how specific fiber properties (mechanical properties or surface properties) alter macrophage behavior, it may be possible to create electrospun fiber scaffolds capable of initiating unique cellular and tissue responses. In this study, we determined the elastic modulus and rigidity of fibers with varying topographies created by finely controlling humidity and including a non-solvent during electrospinning. In total,five fiber scaffold types were produced. Analysis of fiber physical properties demonstrated no change in fiber diameter amongst the five different fiber groups. However, the four different fibrous scaffolds with nanopits or divots each possessed different numbers of pits with different nanoscale dimensions. Unpolarized bone marrow derived murine macrophages (M0), macrophages polarized towards a pro-inflammatory phenotype (M1), or macrophages polarized towards anti-inflammatory phenotype (M2b) were placed onto each of the scaffolds and cytokine RNA expression and protein production were analyzed. Specific nanotopographies did not appreciably alter cytokine production from undifferentiated macrophages (M0) or anti-inflammatory macrophages (M2b), but a specific fiber (with many small pits) did increase IL-12 transcript and IL-12 protein production compared to fibers with small divots. When analyzing the mechanical properties between fibers with divots or with many small pits,divoted fibers possessed similar elastic moduli but different stiffness values. In total,we present techniques capable of creating unique electrospun fibers. These unique fibers have varying fiber mechanical characteristics and modestly modulate macrophage cytokine expression.
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Affiliation(s)
- Nicholas J Schaub
- a Department of Biomedical Engineering , Rensselaer Polytechnic Institute , Troy , NY , USA.,b Center for Biotechnology & Interdisciplinary Studies , Rensselaer Polytechnic Institute , Troy , NY , USA
| | - Anthony R D'Amato
- a Department of Biomedical Engineering , Rensselaer Polytechnic Institute , Troy , NY , USA.,b Center for Biotechnology & Interdisciplinary Studies , Rensselaer Polytechnic Institute , Troy , NY , USA
| | - Andrew Mason
- a Department of Biomedical Engineering , Rensselaer Polytechnic Institute , Troy , NY , USA
| | - David T Corr
- a Department of Biomedical Engineering , Rensselaer Polytechnic Institute , Troy , NY , USA
| | - Erin Y Harmon
- c Department of Regenerative and Cancer Cell Biology , Albany Medical College , Albany , NY , USA
| | - Michelle R Lennartz
- c Department of Regenerative and Cancer Cell Biology , Albany Medical College , Albany , NY , USA
| | - Ryan J Gilbert
- a Department of Biomedical Engineering , Rensselaer Polytechnic Institute , Troy , NY , USA.,b Center for Biotechnology & Interdisciplinary Studies , Rensselaer Polytechnic Institute , Troy , NY , USA
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49
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Wu Y, Yang Z, Law JBK, He AY, Abbas AA, Denslin V, Kamarul T, Hui JH, Lee EH. The Combined Effect of Substrate Stiffness and Surface Topography on Chondrogenic Differentiation of Mesenchymal Stem Cells. Tissue Eng Part A 2017; 23:43-54. [DOI: 10.1089/ten.tea.2016.0123] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Affiliation(s)
- Yingnan Wu
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Tissue Engineering Program, Life Sciences Institute, National University of Singapore, Singapore
| | - Zheng Yang
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Tissue Engineering Program, Life Sciences Institute, National University of Singapore, Singapore
| | - Jaslyn Bee Khuan Law
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), Singapore
| | - Ai Yu He
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), Singapore
| | - Azlina A. Abbas
- Tissue Engineering Group (TEG), National Orthopaedic Centre of Excellence for Research and Learning (NOCERAL), Department of Orthopaedic Surgery, Faculty of Medicine, University of Malaya, Pantai Valley, Kuala Lumpur, Malaysia
| | - Vinitha Denslin
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Tunku Kamarul
- Tissue Engineering Group (TEG), National Orthopaedic Centre of Excellence for Research and Learning (NOCERAL), Department of Orthopaedic Surgery, Faculty of Medicine, University of Malaya, Pantai Valley, Kuala Lumpur, Malaysia
| | - James H.P Hui
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Tissue Engineering Program, Life Sciences Institute, National University of Singapore, Singapore
| | - Eng Hin Lee
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Tissue Engineering Program, Life Sciences Institute, National University of Singapore, Singapore
- Mechanobiology Institute, National University of Singapore, Singapore
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50
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Hsieh FY, Shrestha LK, Ariga K, Hsu SH. Neural differentiation on aligned fullerene C60 nanowhiskers. Chem Commun (Camb) 2017; 53:11024-11027. [DOI: 10.1039/c7cc06395d] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Highly-aligned fullerene nanowhiskers (C60 NWs) are prepared by a modified liquid–liquid interfacial precipitation method. Neural stem cells on the aligned C60 NWs are oriented and have a high capacity to differentiate into mature neurons.
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Affiliation(s)
- Fu-Yu Hsieh
- Institute of Polymer Science and Engineering
- National Taiwan University
- Taipei 10617
- Taiwan
| | - Lok Kumar Shrestha
- Supermolecules Group, International Center for Materials Nanoarchitectonics (WPI-MANA)
- National Institute for Materials Science (NIMS)
- 1-1 Namiki
- Tsukuba
- Ibaraki 305-0044
| | - Katsuhiko Ariga
- Supermolecules Group, International Center for Materials Nanoarchitectonics (WPI-MANA)
- National Institute for Materials Science (NIMS)
- 1-1 Namiki
- Tsukuba
- Ibaraki 305-0044
| | - Shan-hui Hsu
- Institute of Polymer Science and Engineering
- National Taiwan University
- Taipei 10617
- Taiwan
- Center of Tissue Engineering and 3D printing
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