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Development of electrospun Plectranthus amboinicus loaded PCL polymeric nanofibrous scaffold for skin wound healing application: in-vitro and in-silico analysis. JOURNAL OF POLYMER RESEARCH 2023. [DOI: 10.1007/s10965-023-03474-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
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2
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Haghani N, Hassanzadeh Nemati N, Khorasani MT, Bonakdar S. Fabrication of polycaprolactone/heparinized nano fluorohydroxyapatite scaffold for bone tissue engineering uses. INT J POLYM MATER PO 2023. [DOI: 10.1080/00914037.2023.2182781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
Affiliation(s)
- Nila Haghani
- Department of Biomedical Engineering, College of Medical Sciences and Technologies, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Nahid Hassanzadeh Nemati
- Department of Biomedical Engineering, College of Medical Sciences and Technologies, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | | | - Shahin Bonakdar
- National Cell Bank Department, Pasteur Institute of Iran, Tehran, Iran
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Annuryanti F, Domínguez-Robles J, Anjani QK, Adrianto MF, Larrañeta E, Thakur RRS. Fabrication and Characterisation of 3D-Printed Triamcinolone Acetonide-Loaded Polycaprolactone-Based Ocular Implants. Pharmaceutics 2023; 15:243. [PMID: 36678872 PMCID: PMC9863928 DOI: 10.3390/pharmaceutics15010243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 12/13/2022] [Accepted: 12/26/2022] [Indexed: 01/13/2023] Open
Abstract
Triamcinolone acetonide (TA) is a corticosteroid that has been used to treat posterior segment eye diseases. TA is injected intravitreally in the management of neovascular disorders; however, frequent intravitreal injections result in many potential side effects and poor patient compliance. In this work, a 3D bioprinter was used to prepare polycaprolactone (PCL) implants loaded with TA. Implants were manufactured with different shapes (filament-, rectangular-, and circle-shaped) and drug loadings (5, 10, and 20%). The characterisation results showed that TA was successfully mixed and incorporated within the PCL matrix without using solvents, and drug content reached almost 100% for all formulations. The drug release data demonstrate that the filament-shaped implants (SA/V ratio~7.3) showed the highest cumulative drug release amongst all implant shapes over 180 days, followed by rectangular- (SA/V ratio~3.7) and circle-shaped implants (SA/V ratio~2.80). Most implant drug release data best fit the Korsmeyer−Peppas model, indicating that diffusion was the prominent release mechanism. Additionally, a biocompatibility study was performed; the results showed >90% cell viability, thus proving that the TA-loaded PCL implants were safe for ocular application.
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Affiliation(s)
- Febri Annuryanti
- Medical Biology Centre, School of Pharmacy, Queen’s University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK
- Faculty of Pharmacy, Airlangga University, Nanizar Zaman Joenoes Building, C Campus, Mulyorejo, Surabaya 60115, Indonesia
| | - Juan Domínguez-Robles
- Medical Biology Centre, School of Pharmacy, Queen’s University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - Qonita Kurnia Anjani
- Medical Biology Centre, School of Pharmacy, Queen’s University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - Muhammad Faris Adrianto
- Medical Biology Centre, School of Pharmacy, Queen’s University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK
- Faculty of Pharmacy, Airlangga University, Nanizar Zaman Joenoes Building, C Campus, Mulyorejo, Surabaya 60115, Indonesia
| | - Eneko Larrañeta
- Medical Biology Centre, School of Pharmacy, Queen’s University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - Raghu Raj Singh Thakur
- Medical Biology Centre, School of Pharmacy, Queen’s University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK
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Blood-Vessel-Inspired Hierarchical Trilayer Scaffolds: PCL/Gelatin-Driven Protein Adsorption and Cellular Interaction. Polymers (Basel) 2022; 14:polym14112135. [PMID: 35683808 PMCID: PMC9182901 DOI: 10.3390/polym14112135] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 05/06/2022] [Accepted: 05/11/2022] [Indexed: 12/23/2022] Open
Abstract
Fabrication of scaffolds with hierarchical structures exhibiting the blood vessel topological and biochemical features of the native extracellular matrix that maintain long-term patency remains a major challenge. Within this context, scaffold assembly using biodegradable synthetic polymers (BSPs) via electrospinning had led to soft-tissue-resembling microstructures that allow cell infiltration. However, BSPs fail to exhibit the sufficient surface reactivity, limiting protein adsorption and/or cell adhesion and jeopardizing the overall graft performance. Here, we present a methodology for the fabrication of three-layered polycaprolactone (PCL)-based tubular structures with biochemical cues to improve protein adsorption and cell adhesion. For this purpose, PCL was backbone-oxidized (O-PCL) and cast over a photolithography-manufactured microgrooved mold to obtain a bioactive surface as demonstrated using a protein adsorption assay (BSA), Fourier transform infrared spectroscopy (FTIR) and calorimetric analyses. Then, two layers of PCL:gelatin (75:25 and 95:5 w/w), obtained using a novel single-desolvation method, were electrospun over the casted O-PCL to mimic a vascular wall with a physicochemical gradient to guide cell adhesion. Furthermore, tensile properties were shown to withstand the physiological mechanical stresses and strains. In vitro characterization, using L929 mouse fibroblasts, demonstrated that the multilayered scaffold is a suitable platform for cell infiltration and proliferation from the innermost to the outermost layer as is needed for vascular wall regeneration. Our work holds promise as a strategy for the low-cost manufacture of next-generation polymer-based hierarchical scaffolds with high bioactivity and resemblance of ECM’s microstructure to accurately guide cell attachment and proliferation.
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Menezes FC, Siqueira NM, Fung S, Scheibel JM, Moura DJ, Guvendiren M, Kohn J, Soares RMD. Effect of crosslinking, hydroxyapatite addition, and fiber alignment to stimulate human mesenchymal stem cells osteoinduction in polycaprolactone‐based electrospun scaffolds. POLYM ADVAN TECHNOL 2022. [DOI: 10.1002/pat.5723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Felipe Castro Menezes
- Polymeric Biomaterials Laboratory (Poli‐BIO), Institute of Chemistry Universidade Federal do Rio Grande do Sul Porto Alegre RS Brazil
| | - Nataly Machado Siqueira
- Polymeric Biomaterials Laboratory (Poli‐BIO), Institute of Chemistry Universidade Federal do Rio Grande do Sul Porto Alegre RS Brazil
| | - Stephanie Fung
- New Jersey Center for Biomaterials Rutgers University Piscataway New Jersey USA
| | - Jóice Maria Scheibel
- Polymeric Biomaterials Laboratory (Poli‐BIO), Institute of Chemistry Universidade Federal do Rio Grande do Sul Porto Alegre RS Brazil
| | - Dinara Jaqueline Moura
- Laboratory of Genetic Toxicology Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA) Porto Alegre Brazil
| | - Murat Guvendiren
- New Jersey Center for Biomaterials Rutgers University Piscataway New Jersey USA
| | - Joachim Kohn
- New Jersey Center for Biomaterials Rutgers University Piscataway New Jersey USA
| | - Rosane Michele Duarte Soares
- Polymeric Biomaterials Laboratory (Poli‐BIO), Institute of Chemistry Universidade Federal do Rio Grande do Sul Porto Alegre RS Brazil
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Moghaddaszadeh A, Seddiqi H, Najmoddin N, Abbasi Ravasjani S, Klein-Nulend J. Biomimetic 3D-printed PCL scaffold containing a high concentration carbonated-nanohydroxyapatite with immobilized-collagen for bone tissue engineering: enhanced bioactivity and physicomechanical characteristics. Biomed Mater 2021; 16. [PMID: 34670200 DOI: 10.1088/1748-605x/ac3147] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 10/20/2021] [Indexed: 11/12/2022]
Abstract
A challenging approach of three-dimensional (3D)-biomimetic scaffold design for bone tissue engineering is to improve scaffold bioactivity and mechanical properties. We aimed to design and fabricate 3D-polycaprolactone (PCL)-based nanocomposite scaffold containing a high concentration homogeneously distributed carbonated-nanohydroxyapatite (C-nHA)-particles in combination with immobilized-collagen to mimic real bone properties. PCL-scaffolds without/with C-nHA at 30%, 45%, and 60% (wt/wt) were 3D-printed. PCL/C-nHA60%-scaffolds were surface-modified by NaOH-treatment and collagen-immobilization. Physicomechanical and biological properties were investigated experimentally and by finite-element (FE) modeling. Scaffold surface-roughness enhanced by increasing C-nHA (1.7 - 6.1-fold), but decreased by surface-modification (0.6-fold). The contact angle decreased by increasing C-nHA (0.9 - 0.7-fold), and by surface-modification (0.5-fold). The zeta potential decreased by increasing C-nHA (3.2-9.9-fold). Average elastic modulus, compressive strength, and reaction force enhanced by increasing C-nHA and by surface-modification. FE modeling revealed that von Mises stress distribution became less homogeneous by increasing C-nHA, and by surface-modification. Maximal von Mises stress for 2% compression strain in all scaffolds did not exceed yield stress for bulk-material. 3D-printed PCL/C-nHA60% with surface-modification enhanced pre-osteoblast spreading, proliferation, collagen deposition, alkaline phosphatase activity, and mineralization. In conclusion, a novel biomimetic 3D-printed PCL-scaffold containing a high concentration C-nHA with surface-modification was successfully fabricated. It exhibited superior physicomechanical and biological properties, making it a promising biomaterial for bone tissue engineering.
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Affiliation(s)
- Ali Moghaddaszadeh
- Department of Biomedical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Hadi Seddiqi
- Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, 1081 LA, The Netherlands
| | - Najmeh Najmoddin
- Department of Biomedical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | | | - Jenneke Klein-Nulend
- Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, 1081 LA, The Netherlands
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El-Habashy S, Eltaher H, Gaballah A, Mehanna R, El-Kamel AH. Biomaterial-Based Nanocomposite for Osteogenic Repurposing of Doxycycline. Int J Nanomedicine 2021; 16:1103-1126. [PMID: 33603371 PMCID: PMC7887185 DOI: 10.2147/ijn.s298297] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Accepted: 01/20/2021] [Indexed: 02/05/2023] Open
Abstract
Background Besides its antimicrobial action, doxycycline (DX) has lately been repurposed as a small-molecule drug for osteogenic purposes. However, osteogenic DX application is impeded by its dose-dependent cytotoxicity. Further, high-dose DX impairs cell differentiation and mineralization. Purpose Integrating DX into a biomaterial-based delivery system that can control its release would not only ameliorate its cytotoxic actions but also augment its osteogenic activity. In this work, we managed to engineer novel composite DX–hydroxyapatite–polycaprolactone nanoparticles (DX/HAp/PCL) to modify DX osteogenic potential. Methods Employing a 23-factorial design, we first optimized HApN for surface-area attributes to maximize DX loading. Composite DX/HAp/PCL were then realized using a simple emulsification technique, characterized using various in vitro methods, and evaluated for in vitro osteogenesis. Results The developed HApN exhibited a favorable crystalline structure, Ca:P elemental ratio (1.67), mesoporous nature, and large surface area. DX/HAp/PCL achieved the highest reported entrapment efficiency (94.77%±1.23%) of DX in PCL-based particles. The developed composite system achieved controlled release of the water-soluble DX over 24 days. Moreover, the novel composite nanosystem managed to significantly ameliorate DX cytotoxicity on bone-marrow stem cells, as well as enhance its overall proliferation potential. Alkaline phosphatase and mineralization assays revealed superior osteodifferentiation potential of the composite system. Quantification of gene expression demonstrated that while DX solution was able to drive bone-marrow stem cells down the osteogenic lineage into immature osteoblasts after 10-day culture, the innovative composite system allowed maturation of osteodifferentiated cells. To the best of our knowledge, this is the first work to elaborate the impact of DX on the expression of osteogenic genes: RUNX2, OSP, and BSP. Further, the osteogenicity of a DX-loaded particulate-delivery system has not been previously investigated. Conclusion Our findings indicate that repurposing low-dose DX in complementary biomaterial-based nanosystems can offer a prominent osteogenic candidate for bone-regeneration purposes.
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Affiliation(s)
- Salma El-Habashy
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt
| | - Hoda Eltaher
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt
| | - Ahmed Gaballah
- Microbiology Department, Medical Research Institute, Alexandria University, Alexandria, 21561, Egypt
| | - Radwa Mehanna
- Medical Physiology Department, Faculty of Medicine, Alexandria University, Alexandria, 21131, Egypt.,Center of Excellence for Research in Regenerative Medicine and Applications CERRMA, Faculty of Medicine, Alexandria University, Alexandria, 21131, Egypt
| | - Amal H El-Kamel
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria, 21521, Egypt
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Borah R, Ingavle GC, Kumar A, Sandeman SR, Mikhalovsky SV. Surface-Functionalized Conducting Nanofibers for Electrically Stimulated Neural Cell Function. Biomacromolecules 2021; 22:594-611. [PMID: 33448795 DOI: 10.1021/acs.biomac.0c01445] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Strategies involving the inclusion of cell-instructive chemical and topographical cues to smart biomaterials in combination with a suitable physical stimulus may be beneficial to enhance nerve-regeneration rate. In this regard, we investigated the surface functionalization of poly[2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV)-based electroconductive electrospun nanofibers coupled with externally applied electrical stimulus for accelerated neuronal growth potential. In addition, the voltage-dependent conductive mechanism of the nanofibers was studied in depth to interlink intrinsic conductive properties with electrically stimulated neuronal expressions. Surface functionalization was accomplished using 3-aminopropyltriethoxysilane (APTES) and 1,6-hexanediamine (HDA) as an alternative to costly biomolecule coating (e.g., collagen) for cell adhesion. The nanofibers were uniform, porous, electrically conductive, mechanically strong, and stable under physiological conditions. Surface amination boosted biocompatibility, 3T3 cell adhesion, and spreading, while the neuronal model rat PC12 cell line showed better differentiation on surface-functionalized mats compared to nonfunctionalized mats. When coupled with electrical stimulation (ES), these mats showed comparable or faster neurite formation and elongation than the collagen-coated mats with no-ES conditions. The findings indicate that surface amination in combination with ES may provide an improved strategy to faster nerve regeneration using MEH-PPV-based neural scaffolds.
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Affiliation(s)
- Rajiv Borah
- Life Sciences Division, Institute of Advanced Study in Science & Technology, Guwahati 781035, India
| | - Ganesh C Ingavle
- Symbiosis Centre for Stem Cell Research, Symbiosis International (Deemed University), Pune 412115, India
| | - Ashok Kumar
- Materials Research Laboratory, Department of Physics, Tezpur University, Tezpur 784028, India
| | - Susan R Sandeman
- Biomaterials and Medical Devices Research Group, School of Pharmacy and Biomolecular Sciences, Huxley Building, University of Brighton, Brighton BN2 4GJ, United Kingdom
| | - Sergey V Mikhalovsky
- ANAMAD Ltd, Sussex Innovation Centre, Science Park Square, Falmer, Brighton BN1 9SB, United Kingdom.,Chuiko Institute of Surface Chemistry, National Academy of Sciences of Ukraine, 17, General Naumov street, Kyiv 03164, Ukraine
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Stewart S, Domínguez-Robles J, McIlorum VJ, Gonzalez Z, Utomo E, Mancuso E, Lamprou DA, Donnelly RF, Larrañeta E. Poly(caprolactone)-Based Coatings on 3D-Printed Biodegradable Implants: A Novel Strategy to Prolong Delivery of Hydrophilic Drugs. Mol Pharm 2020; 17:3487-3500. [PMID: 32672976 PMCID: PMC7482401 DOI: 10.1021/acs.molpharmaceut.0c00515] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 07/14/2020] [Accepted: 07/16/2020] [Indexed: 01/18/2023]
Abstract
Implantable devices are versatile and promising drug delivery systems, and their advantages are well established. Of these advantages, long-acting drug delivery is perhaps the most valuable. Hydrophilic compounds are particularly difficult to deliver for prolonged times. This work investigates the use of poly(caprolactone) (PCL)-based implant coatings as a novel strategy to prolong the delivery of hydrophilic compounds from implantable devices that have been prepared by additive manufacturing (AM). Hollow implants were prepared from poly(lactic acid) (PLA) and poly(vinyl alcohol) (PVA) using fused filament fabrication (FFF) AM and subsequently coated in a PCL-based coating. Coatings were prepared by solution-casting mixtures of differing molecular weights of PCL and poly(ethylene glycol) (PEG). Increasing the proportion of low-molecular-weight PCL up to 60% in the formulations decreased the crystallinity by over 20%, melting temperature by over 4 °C, and water contact angle by over 40°, resulting in an increased degradation rate when compared to pure high-molecular-weight PCL. Addition of 30% PEG to the formulation increased the porosity of the formulation by over 50% when compared to an equivalent PCL-only formulation. These implants demonstrated in vitro release rates for hydrophilic model compounds (methylene blue and ibuprofen sodium) ranging from 0.01 to 34.09 mg/day, depending on the drug used. The versatility of the devices produced in this work and the range of release rates achievable show great potential. Implants could be specifically developed in order to match the specific release rate required for a number of drugs for a wide range of conditions.
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Affiliation(s)
- Sarah
A. Stewart
- School
of Pharmacy, Queen’s University Belfast, 97 Lisburn Road, Belfast BT9 7BL, U.K.
| | - Juan Domínguez-Robles
- School
of Pharmacy, Queen’s University Belfast, 97 Lisburn Road, Belfast BT9 7BL, U.K.
| | - Victoria J. McIlorum
- School
of Pharmacy, Queen’s University Belfast, 97 Lisburn Road, Belfast BT9 7BL, U.K.
| | - Zoilo Gonzalez
- Instituto
De Cerámica y Vidrio, CSIC, c/Kelsen, 5, 28049 Madrid, Spain
| | - Emilia Utomo
- School
of Pharmacy, Queen’s University Belfast, 97 Lisburn Road, Belfast BT9 7BL, U.K.
| | - Elena Mancuso
- Nanotechnology
and Integrated Bio-Engineering Centre (NIBEC), Ulster University, Jordanstown BT37 0QB, U.K.
| | - Dimitrios A. Lamprou
- School
of Pharmacy, Queen’s University Belfast, 97 Lisburn Road, Belfast BT9 7BL, U.K.
| | - Ryan F. Donnelly
- School
of Pharmacy, Queen’s University Belfast, 97 Lisburn Road, Belfast BT9 7BL, U.K.
| | - Eneko Larrañeta
- School
of Pharmacy, Queen’s University Belfast, 97 Lisburn Road, Belfast BT9 7BL, U.K.
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Álvarez-Suárez AS, Dastager SG, Bogdanchikova N, Grande D, Pestryakov A, García-Ramos JC, Pérez-González GL, Juárez-Moreno K, Toledano-Magaña Y, Smolentseva E, Paz-González JA, Popova T, Rachkovskaya L, Nimaev V, Kotlyarova A, Korolev M, Letyagin A, Villarreal-Gómez LJ. Electrospun Fibers and Sorbents as a Possible Basis for Effective Composite Wound Dressings. MICROMACHINES 2020; 11:E441. [PMID: 32331467 PMCID: PMC7231366 DOI: 10.3390/mi11040441] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 04/14/2020] [Accepted: 04/16/2020] [Indexed: 12/16/2022]
Abstract
Skin burns and ulcers are considered hard-to-heal wounds due to their high infection risk. For this reason, designing new options for wound dressings is a growing need. The objective of this work is to investigate the properties of poly (ε-caprolactone)/poly (vinyl-pyrrolidone) (PCL/PVP) microfibers produced via electrospinning along with sorbents loaded with Argovit™ silver nanoparticles (Ag-Si/Al2O3) as constituent components for composite wound dressings. The physicochemical properties of the fibers and sorbents were characterized using scanning electron microscopy (SEM), differential scanning calorimetry (DSC), Fourier transform infrared spectroscopy (FTIR) and inductively coupled plasma optical emission spectroscopy (ICP-OES). The mechanical properties of the fibers were also evaluated. The results of this work showed that the tested fibrous scaffolds have melting temperatures suitable for wound dressings design (58-60 °C). In addition, they demonstrated to be stable even after seven days in physiological solution, showing no macroscopic damage due to PVP release at the microscopic scale. Pelletized sorbents with the higher particle size demonstrated to have the best water uptake capabilities. Both, fibers and sorbents showed antimicrobial activity against Gram-negative bacteria Pseudomona aeruginosa and Escherichia coli, Gram-positive Staphylococcus aureus and the fungus Candida albicans. The best physicochemical properties were obtained with a scaffold produced with a PCL/PVP ratio of 85:15, this polymeric scaffold demonstrated the most antimicrobial activity without affecting the cell viability of human fibroblast. Pelletized Ag/Si-Al2O3-3 sorbent possessed the best water uptake capability and the higher antimicrobial activity, over time between all the sorbents tested. The combination of PCL/PVP 85:15 microfibers with the chosen Ag/Si-Al2O3-3 sorbent will be used in the following work for creation of wound dressings possessing exudate retention, biocompatibility and antimicrobial activity.
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Affiliation(s)
- Alan Saúl Álvarez-Suárez
- Facultad de Ciencias de la Ingeniería y Tecnología, Universidad Autónoma de Baja California, Valle de las Palmas, Mexico. Blvd. Universitario #1000, Unidad Valle de las Palmas, 22260 Tijuana, Baja California, Mexico; (A.S.Á.-S.); (G.L.P.-G.); (J.A.P.-G.)
| | - Syed G. Dastager
- National Collection of Industrial Microorganisms (NCIM), CSIR-National Chemical Laboratory, Pune-411008, Maharashtra, India;
| | - Nina Bogdanchikova
- Universidad Nacional Autónoma de México, Centro de Nanociencias y Nanotecnología, Km. 107, Carretera Tijuana a Ensenada, C.P. 22860 Ensenada, Baja California, Mexico; (N.B.); (K.J.-M.); (E.S.)
| | - Daniel Grande
- “Complex Polymer Systems” Laboratory, Institut de Chimie et des Matériaux Paris-Est, Université Paris-Est Créteil, UMR 7182 CNRS, 2, rue Henri Dunant, F-94320 Thiais, France;
| | - Alexey Pestryakov
- Department of Technology of Organic Substances and Polymer Materials, Tomsk Polytechnic University, 634050 Tomsk, Russia;
| | - Juan Carlos García-Ramos
- Escuela de Ciencias de la Salud, Universidad Autónoma de Baja California- Campus Valle Dorado, Carretera Transpeninsular S/N, Valle Dorado, 22890 Ensenada, Baja California, Mexico; (J.C.G.-R.); (Y.T.-M.)
| | - Graciela Lizeth Pérez-González
- Facultad de Ciencias de la Ingeniería y Tecnología, Universidad Autónoma de Baja California, Valle de las Palmas, Mexico. Blvd. Universitario #1000, Unidad Valle de las Palmas, 22260 Tijuana, Baja California, Mexico; (A.S.Á.-S.); (G.L.P.-G.); (J.A.P.-G.)
- Facultad de Ciencias Químicas e Ingeniería, Universidad Autónoma de Baja California, 21500 Tijuana, Baja California, Mexico
| | - Karla Juárez-Moreno
- Universidad Nacional Autónoma de México, Centro de Nanociencias y Nanotecnología, Km. 107, Carretera Tijuana a Ensenada, C.P. 22860 Ensenada, Baja California, Mexico; (N.B.); (K.J.-M.); (E.S.)
| | - Yanis Toledano-Magaña
- Escuela de Ciencias de la Salud, Universidad Autónoma de Baja California- Campus Valle Dorado, Carretera Transpeninsular S/N, Valle Dorado, 22890 Ensenada, Baja California, Mexico; (J.C.G.-R.); (Y.T.-M.)
| | - Elena Smolentseva
- Universidad Nacional Autónoma de México, Centro de Nanociencias y Nanotecnología, Km. 107, Carretera Tijuana a Ensenada, C.P. 22860 Ensenada, Baja California, Mexico; (N.B.); (K.J.-M.); (E.S.)
| | - Juan Antonio Paz-González
- Facultad de Ciencias de la Ingeniería y Tecnología, Universidad Autónoma de Baja California, Valle de las Palmas, Mexico. Blvd. Universitario #1000, Unidad Valle de las Palmas, 22260 Tijuana, Baja California, Mexico; (A.S.Á.-S.); (G.L.P.-G.); (J.A.P.-G.)
| | - Tatiana Popova
- Research Institute of Clinical and Experimental Lymphology – Branch of the Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, 630060 Novosibirsk, Russia; (T.P.); (L.R.); (V.N.); (A.K.); (M.K.); (A.L.)
| | - Lyubov Rachkovskaya
- Research Institute of Clinical and Experimental Lymphology – Branch of the Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, 630060 Novosibirsk, Russia; (T.P.); (L.R.); (V.N.); (A.K.); (M.K.); (A.L.)
| | - Vadim Nimaev
- Research Institute of Clinical and Experimental Lymphology – Branch of the Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, 630060 Novosibirsk, Russia; (T.P.); (L.R.); (V.N.); (A.K.); (M.K.); (A.L.)
| | - Anastasia Kotlyarova
- Research Institute of Clinical and Experimental Lymphology – Branch of the Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, 630060 Novosibirsk, Russia; (T.P.); (L.R.); (V.N.); (A.K.); (M.K.); (A.L.)
| | - Maksim Korolev
- Research Institute of Clinical and Experimental Lymphology – Branch of the Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, 630060 Novosibirsk, Russia; (T.P.); (L.R.); (V.N.); (A.K.); (M.K.); (A.L.)
| | - Andrey Letyagin
- Research Institute of Clinical and Experimental Lymphology – Branch of the Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, 630060 Novosibirsk, Russia; (T.P.); (L.R.); (V.N.); (A.K.); (M.K.); (A.L.)
| | - Luis Jesús Villarreal-Gómez
- Facultad de Ciencias de la Ingeniería y Tecnología, Universidad Autónoma de Baja California, Valle de las Palmas, Mexico. Blvd. Universitario #1000, Unidad Valle de las Palmas, 22260 Tijuana, Baja California, Mexico; (A.S.Á.-S.); (G.L.P.-G.); (J.A.P.-G.)
- Facultad de Ciencias Químicas e Ingeniería, Universidad Autónoma de Baja California, 21500 Tijuana, Baja California, Mexico
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Wang Y, Yao Y. Nanofiber Alignment Mediates the Pattern of Single Cell Migration. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:2129-2135. [PMID: 32040329 DOI: 10.1021/acs.langmuir.9b03314] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In natural tissue, nanofibrils in extracellular matrix (ECM), such as collagen fibrils, direct cell migration through contacting guidance. The contacting nanofibers on cell-ECM interface are reorganized from curl fibers to straightened fibers. However, how these nanofibers regulate single cell migration remains obscure. To investigate this issue, we fabricated collagen/polymer based biomimetic nanofiber sheets of varying topography. And we selected tumorigenic cell KGN and nontumorigenic cell 293T for comparison. We found KGN showed higher sensitivity to the nanofiber alignment rather than the nontumorigenic cell 293T, in morphological change, trajectory adaptation, and velocity variation. We also found aligned nanofibers shaped both KGN and 293T into elongated spindle morphology. Comparatively, KGN had greater perimeter and lower roundness than 293T. To study the dynamics of single cell migration of KGN and 293T, we conducted trajectory tracking and siRNA validation on regulatory proteins. We found nanofibers of varying topography regulated the patterns of single cell migration differently. For KGN cell, β-catenin, Rac1, and Cdc42 participated in its directional migration, but it was impervious to vimentin. Comparatively, epithelial cell 293T involved vimentin in its directional migration.
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Affiliation(s)
- Yiqun Wang
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai 201210, China
| | - Yuan Yao
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai 201210, China
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Lee SJ, Asheghali D, Blevins B, Timsina R, Esworthy T, Zhou X, Cui H, Hann SY, Qiu X, Tokarev A, Minko S, Zhang LG. Touch-Spun Nanofibers for Nerve Regeneration. ACS APPLIED MATERIALS & INTERFACES 2020; 12:2067-2075. [PMID: 31859479 DOI: 10.1021/acsami.9b18614] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In the current study, we examined the potential for neural stem cell (NSCs) proliferation on novel aligned touch-spun polycaprolactone (PCL) nanofibers. Electrospun PCL nanofibers with similar diameter and alignment were used as a control. Confocal microscopy images showed that NSCs grew and differentiated all over the scaffolds up to 8 days. Neurite quantification analysis revealed that the NSCs cultured on the touch-spun fibers with incorporated bovine serum albumin promoted the expression of neuron-specific class III β-tubulin after 8 days. More importantly, NSCs grown on the aligned touch-spun PCL fibers exhibited a bipolar elongation along the direction of the fiber, while NSCs cultured on the aligned electrospun PCL fibers expressed a multipolar elongation. The structural characteristics of the PCL nanofibers analyzed by X-ray diffraction indicated that the degree of crystallinity and elastic modulus of the touch-spun fiber are significantly higher than those of electrospun fibers. These findings indicate that the aligned and stiff touch-spun nanofibrous scaffolds show considerable potential for nerve injury repair.
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13
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Costa T, Ribeiro A, Machado R, Ribeiro C, Lanceros-Mendez S, Cavaco-Paulo A, Almeida A, das Neves J, Lúcio M, Viseu T. Polymeric Electrospun Fibrous Dressings for Topical Co-delivery of Acyclovir and Omega-3 Fatty Acids. Front Bioeng Biotechnol 2019; 7:390. [PMID: 31850337 PMCID: PMC6901623 DOI: 10.3389/fbioe.2019.00390] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2019] [Accepted: 11/19/2019] [Indexed: 12/31/2022] Open
Abstract
Herpetic infections caused by Herpes simplex virus (HSV) are among the most common human infections, affecting more than two quarters of the world's population. The standard treatment for orofacial herpes is the administration of antiviral drugs, mainly acyclovir (ACV). However, current products are mostly based on semisolid formulations that have limited ability to promote drug skin penetration and tend to leak from the application site, thus showing reduced ability to sustain local drug residence. This work reports on the production of poly (ε-caprolactone) (PCL) fibrous matrices with ACV and omega-3 fatty acids (ω3) for application as dressings to the topical treatment of orofacial herpes. PCL fibrous matrices with the co-incorporated bioactive compounds were obtained by electrospinning and characterized regarding their morphology, chemical, physical, and mechanical properties. The potential use of the developed polymeric fibrous matrices for topical applications was evaluated by: (i) the release kinetics of the bioactive compounds; (ii) the occlusive factor of the fibrous mat; (iii) ACV skin permeation capacity; and (iv) the cytotoxicity in a keratinocyte cell line. PCL fibrous matrices loaded with the bioactive compounds presented a smooth morphology and a good balance between flexibility and hardness essential to be durable for handling, while having a desirable texture to be used comfortably. The fibrous mat also provided a sustained release of ACV during 96 h and improved the skin permeability of this drug (Kp = 0.00928 ± 0.000867 cm/h) presenting also high porosity (74%) and a water vapor transmission rate (WVTR) of 881 ± 91 g/m2day, essential to maintain moist and oxygen for faster healing of herpes lesions. Furthermore, cytotoxicity studies suggest that the fibrous mat are safe for topical application. Overall, the PCL based electrospun fibrous matrices with ACV and ω3 hereby described have the potential to be used as therapeutic bandage systems for the treatment of orofacial herpes.
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Affiliation(s)
- Tiago Costa
- Centre of Physics of Universities of Minho and Porto (CF-UM-UP), University of Minho, Braga, Portugal
| | - Artur Ribeiro
- Centre of Biological Engineering (CEB), University of Minho, Braga, Portugal
| | - Raul Machado
- Centre of Molecular and Environmental Biology (CBMA), University of Minho, Braga, Portugal.,Institute of Science and Innovation for Sustainability (IB-S), University of Minho, Braga, Portugal
| | - Clarisse Ribeiro
- Centre of Physics of Universities of Minho and Porto (CF-UM-UP), University of Minho, Braga, Portugal.,Centre of Biological Engineering (CEB), University of Minho, Braga, Portugal
| | - Senentxu Lanceros-Mendez
- Centre of Physics of Universities of Minho and Porto (CF-UM-UP), University of Minho, Braga, Portugal.,Basque Center for Materials, Applications and Nanostructures (BCMaterials), UPV/EHU Science Park, Leioa, Spain.,Basque Foundation for Science (Ikerbasque), Bilbao, Spain
| | - Artur Cavaco-Paulo
- Centre of Biological Engineering (CEB), University of Minho, Braga, Portugal
| | - Andreia Almeida
- Institute for Research and Innovation in Health (i3S), University of Porto, Porto, Portugal.,Institute of Biomedical Engineering (INEB), University of Porto, Porto, Portugal.,Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal
| | - José das Neves
- Institute for Research and Innovation in Health (i3S), University of Porto, Porto, Portugal.,Institute of Biomedical Engineering (INEB), University of Porto, Porto, Portugal
| | - Marlene Lúcio
- Centre of Physics of Universities of Minho and Porto (CF-UM-UP), University of Minho, Braga, Portugal.,Centre of Molecular and Environmental Biology (CBMA), University of Minho, Braga, Portugal
| | - Teresa Viseu
- Centre of Physics of Universities of Minho and Porto (CF-UM-UP), University of Minho, Braga, Portugal
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14
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Santillán J, Dwomoh EA, Rodríguez-Avilés YG, Bello SA, Nicolau E. Fabrication and Evaluation of Polycaprolactone Beads-on-String Membranes for Applications in Bone Tissue Regeneration. ACS APPLIED BIO MATERIALS 2019; 2:1031-1040. [DOI: 10.1021/acsabm.8b00628] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Jaime Santillán
- Department of Physics, University of Puerto Rico, Rio Piedras Campus, 17 Ave. Universidad Ste. 1701, San Juan, Puerto Rico 00925-2537, United States
- Molecular Science Research Center, University of Puerto Rico, 1390 Ponce De León Ave, Suite 2, San Juan, Puerto Rico 00931-3346, United States
| | - Emmanuel A. Dwomoh
- Department of Biology, City University of New York, City College, New York, New York 10031, United States
| | - Yaiel G. Rodríguez-Avilés
- Department of Biology, University of Puerto Rico, Rio Piedras Campus, 17 Ave. Universidad Ste. 1701, San Juan, Puerto Rico 00925-2537, United States
| | - Samir A. Bello
- Department of Biology, University of Puerto Rico, Rio Piedras Campus, 17 Ave. Universidad Ste. 1701, San Juan, Puerto Rico 00925-2537, United States
| | - Eduardo Nicolau
- Department of Chemistry, University of Puerto Rico, Rio Piedras Campus, 17 Ave. Universidad Ste. 1701, San Juan, Puerto Rico 00925-2537, United States
- Molecular Science Research Center, University of Puerto Rico, 1390 Ponce De León Ave, Suite 2, San Juan, Puerto Rico 00931-3346, United States
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Jain S, Krishna Meka SR, Chatterjee K. Curcumin eluting nanofibers augment osteogenesis toward phytochemical based bone tissue engineering. ACTA ACUST UNITED AC 2016; 11:055007. [PMID: 27710925 DOI: 10.1088/1748-6041/11/5/055007] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Curcumin is a phenolic compound isolated from Curcuma longa that is known to exhibit wide ranging biological activity including potential benefits for bone growth. The aim of this work was to engineer curcumin eluting tissue scaffolds and investigate their potential use in bone tissue regeneration. We prepared curcumin loaded poly(ε-caprolactone) (PCL) nanofibers by electrospinning. Morphological characterization of the nanofibers revealed that the average diameter of neat fibers and that of fibers with 1 wt% and 5 wt% curcumin is 840 ± 130 nm, 827 ± 129 nm and 680 ± 110 nm, respectively. Fourier transformation infrared spectroscopy and 1H nuclear magnetic resonance confirmed the successful loading of the drug in fibers. In aqueous medium, the fibers released ≈18% of the encapsulated drug in 3 d and ≈60% in 9 d. The cell response to the curcumin loaded nanofibers was assessed using MC3T3-E1 pre-osteoblasts. Cell proliferation was moderated with increased loading of curcumin and was 50% lower on the fibers containing 5% curcumin at day 10 than the control fibers. Osteogenesis was confirmed by assaying the expression of alkaline phosphatase and staining of mineral deposits by Alizarin red stain, which were both markedly higher for 1% curcumin compared to neat polymer but lower for 5% curcumin. Mineral deposition was also confirmed chemically by Fourier transform infrared spectroscopy. These results were corroborated by increased gene and protein expression of known osteogenic markers in 1% curcumin. Thus, controlled release of curcumin from polymer scaffolds is a promising strategy for bone tissue regeneration.
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Affiliation(s)
- Shubham Jain
- Department of Materials Engineering, Indian Institute of Science, Bangalore 560012, India
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16
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Jain S, Meka SRK, Chatterjee K. Engineering a Piperine Eluting Nanofibrous Patch for Cancer Treatment. ACS Biomater Sci Eng 2016; 2:1376-1385. [PMID: 33434991 DOI: 10.1021/acsbiomaterials.6b00297] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The objective of this study was to engineer a biodegradable polymeric system for sustained release of piperine for cancer treatment. We prepared nanofibrous patches of poly(ε-caprolactone) (PCL) and gelatin (GEL) blends of different ratios by electrospinning. The PCL/GEL nanofibers were loaded with up to 30 wt % piperine, a phytochemical derived from black pepper, which is believed to exhibit anticancer, antiarthritis, antibacterial, antioxidant, and anti-inflammatory properties. Scanning electron microscopy revealed that the fiber diameter was in the range of 300-400 nm. Fourier-transform infrared spectroscopy confirmed that the drug was successfully loaded into the nanofiber mats. In vitro release kinetics revealed the sustained release of the drug with 50% release in 3 days from the PCL/GEL (50:50 by weight) blend fibers. The reduced viability and growth of HeLa and MCF-7 cancer cells on the piperine eluting nanofibers demonstrated anticancer activity in vitro. The proliferation of noncancerous cells such as NIH3T3 cells and human mesenchymal stem cells was affected to a markedly lesser extent. Flow cytometry revealed that the released piperine induced the generation of reactive oxygen species (ROS) and cell cycle arrest in the G2/M phase, leading to cell death of cancer cells. The findings of this study suggest that piperine-loaded nanofiber mats could be developed into implantable biodegradable patches for use in postsurgical cancer treatment.
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Affiliation(s)
- Shubham Jain
- Department of Materials Engineering, Indian Institute of Science, Bangalore 560012, India
| | - Sai Rama Krishna Meka
- Department of Materials Engineering, Indian Institute of Science, Bangalore 560012, India
| | - Kaushik Chatterjee
- Department of Materials Engineering, Indian Institute of Science, Bangalore 560012, India
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17
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Ho MH, Liao MH, Lin YL, Lai CH, Lin PI, Chen RM. Improving effects of chitosan nanofiber scaffolds on osteoblast proliferation and maturation. Int J Nanomedicine 2014; 9:4293-304. [PMID: 25246786 PMCID: PMC4166309 DOI: 10.2147/ijn.s68012] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Osteoblast maturation plays a key role in regulating osteogenesis. Electrospun nanofibrous products were reported to possess a high surface area and porosity. In this study, we developed chitosan nanofibers and examined the effects of nanofibrous scaffolds on osteoblast maturation and the possible mechanisms. Macro- and micro observations of the chitosan nanofibers revealed that these nanoproducts had a flat surface and well-distributed fibers with nanoscale diameters. Mouse osteoblasts were able to attach onto the chitosan nanofiber scaffolds, and the scaffolds degraded in a time-dependent manner. Analysis by scanning electron microscopy further showed mouse osteoblasts adhered onto the scaffolds along the nanofibers, and cell-cell communication was also detected. Mouse osteoblasts grew much better on chitosan nanofiber scaffolds than on chitosan films. In addition, human osteoblasts were able to adhere and grow on the chitosan nanofiber scaffolds. Interestingly, culturing human osteoblasts on chitosan nanofiber scaffolds time-dependently increased DNA replication and cell proliferation. In parallel, administration of human osteoblasts onto chitosan nanofibers significantly induced osteopontin, osteocalcin, and alkaline phosphatase (ALP) messenger (m)RNA expression. As to the mechanism, chitosan nanofibers triggered runt-related transcription factor 2 mRNA and protein syntheses. Consequently, results of ALP-, alizarin red-, and von Kossa-staining analyses showed that chitosan nanofibers improved osteoblast mineralization. Taken together, results of this study demonstrate that chitosan nanofibers can stimulate osteoblast proliferation and maturation via runt-related transcription factor 2-mediated regulation of osteoblast-associated osteopontin, osteocalcin, and ALP gene expression.
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Affiliation(s)
- Ming-Hua Ho
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan ; Cell Physiology and Molecular Image Research Center and Department of Anesthesiology, Wan Fang Hospital, Taipei, Taiwan
| | - Mei-Hsiu Liao
- Graduate Institute of Medical Sciences, Taipei Medical University, Taipei, Taiwan
| | - Yi-Ling Lin
- Cell Physiology and Molecular Image Research Center and Department of Anesthesiology, Wan Fang Hospital, Taipei, Taiwan
| | - Chien-Hao Lai
- Graduate Institute of Medical Sciences, Taipei Medical University, Taipei, Taiwan
| | - Pei-I Lin
- Graduate Institute of Medical Sciences, Taipei Medical University, Taipei, Taiwan
| | - Ruei-Ming Chen
- Cell Physiology and Molecular Image Research Center and Department of Anesthesiology, Wan Fang Hospital, Taipei, Taiwan ; Graduate Institute of Medical Sciences, Taipei Medical University, Taipei, Taiwan ; Anesthetics and Toxicology Research Center, Taipei Medical University Hospital, Taipei, Taiwan
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18
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Wang Y, Guo G, Chen H, Gao X, Fan R, Zhang D, Zhou L. Preparation and characterization of polylactide/poly(ε-caprolactone)-poly(ethylene glycol)-poly(ε-caprolactone) hybrid fibers for potential application in bone tissue engineering. Int J Nanomedicine 2014; 9:1991-2003. [PMID: 24790439 PMCID: PMC4000186 DOI: 10.2147/ijn.s55318] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
The aim of this study was to develop a kind of osteogenic biodegradable composite graft consisting of human placenta-derived mesenchymal stem cell (hPMSC) material for site-specific repair of bone defects and attenuation of clinical symptoms. The novel nano- to micro-structured biodegradable hybrid fibers were prepared by electrospinning. The characteristics of the hybrid membranes were investigated by a range of methods, including Fourier transform infrared spectroscopy, X-ray diffraction, and differential scanning calorimetry. Morphological study with scanning electron microscopy showed that the average fiber diameter and the number of nanoscale pores on each individual fiber surface decreased with increasing concentration of poly(ε-caprolactone)-poly(ethylene glycol)-poly(ε-caprolactone) (PCEC). The prepared polylactide (PLA)/PCEC fibrous membranes favored hPMSC attachment and proliferation by providing an interconnected, porous, three-dimensional mimicked extracellular environment. What is more, hPMSCs cultured on the electrospun hybrid PLA/PCEC fibrous scaffolds could be effectively differentiated into bone-associated cells by positive alizarin red staining. Given the good cellular response and excellent osteogenic potential in vitro, the electrospun PLA/PCEC fibrous scaffolds could be one of the most promising candidates for bone tissue engineering.
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Affiliation(s)
- YueLong Wang
- State Key Laboratory of Biotherapy and Cancer Center, Chengdu, People's Republic of China ; Department of Neurosurgery, West China Hospital, West China Medical School, Sichuan University, Chengdu, People's Republic of China
| | - Gang Guo
- State Key Laboratory of Biotherapy and Cancer Center, Chengdu, People's Republic of China
| | - HaiFeng Chen
- Department of Neurosurgery, West China Hospital, West China Medical School, Sichuan University, Chengdu, People's Republic of China
| | - Xiang Gao
- State Key Laboratory of Biotherapy and Cancer Center, Chengdu, People's Republic of China
| | - RangRang Fan
- State Key Laboratory of Biotherapy and Cancer Center, Chengdu, People's Republic of China
| | - DongMei Zhang
- State Key Laboratory of Biotherapy and Cancer Center, Chengdu, People's Republic of China
| | - LiangXue Zhou
- Department of Neurosurgery, West China Hospital, West China Medical School, Sichuan University, Chengdu, People's Republic of China
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19
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Sims-Mourtada J, Niamat RA, Samuel S, Eskridge C, Kmiec EB. Enrichment of breast cancer stem-like cells by growth on electrospun polycaprolactone-chitosan nanofiber scaffolds. Int J Nanomedicine 2014; 9:995-1003. [PMID: 24570583 PMCID: PMC3933718 DOI: 10.2147/ijn.s55720] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
A small population of highly tumorigenic breast cancer cells has recently been identified. These cells, known as breast-cancer stem-like cells (BCSC), express markers similar to mammary stem cells, and are highly resistant to chemotherapy. Currently, study of BCSC is hampered by the inability to propagate these cells in tissue culture without inducing differentiation. Recently, it was reported that proliferation and differentiation can be modified by culturing cells on electrospun nanofibers. Here, we sought to characterize the chemoresistance and stem-like properties of breast cancer cell lines grown on nanofiber scaffolds. Cells cultured on three-dimensional templates of electrospun poly(ε-caprolactone)-chitosan nanofibers showed increases in mammary stem cell markers and in sphere-forming ability compared with cells cultured on polystyrene culture dishes. There was no increase in proliferation of stem cell populations, indicating that culture on nanofibers may inhibit differentiation of BCSC. The increase in stemness was accompanied by increases in resistance to docetaxel and doxorubicin. These data indicate that BCSC populations are enriched in cells cultured on electrospun poly(ε-caprolactone)-chitosan nanofibers, scaffolds that may provide a useful system to study BCSC and their response to anticancer drug treatment.
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Affiliation(s)
- Jennifer Sims-Mourtada
- Center for Translational Cancer Research, Helen F Graham Cancer Center and Research Institute, Christiana Care Health Services, Inc, Newark
| | - Rohina A Niamat
- Department of Chemistry, Delaware State University, Dover, DE, USA
| | - Shani Samuel
- Department of Chemistry, Delaware State University, Dover, DE, USA
| | - Chris Eskridge
- Department of Chemistry, Delaware State University, Dover, DE, USA
| | - Eric B Kmiec
- Center for Translational Cancer Research, Helen F Graham Cancer Center and Research Institute, Christiana Care Health Services, Inc, Newark ; Department of Chemistry, Delaware State University, Dover, DE, USA
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Abbasi N, Soudi S, Hayati-Roodbari N, Dodel M, Soleimani M. The Effects of Plasma Treated Electrospun Nanofibrous Poly (ε-caprolactone) Scaffolds with Different Orientations on Mouse Embryonic Stem Cell Proliferation. CELL JOURNAL 2014; 16:245-54. [PMID: 24611137 PMCID: PMC4204185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/22/2013] [Accepted: 07/26/2013] [Indexed: 10/26/2022]
Abstract
OBJECTIVE Assessments of cell reactions such as motility, orientation and activation to the topography of the substratum will assist with the fabrication of a proper implantable scaffold for future tissue engineering applications.The current challenge is to analyze the orientation effect of elecrospun nanofibers of poly (ε-caprolactone) (PCL) on viability and proliferation of mouse embryonic stem cells (mESCs). MATERIALS AND METHODS In this experimental study, we used the electrospinning method to fabricate nanofibrous PCL scaffolds. Chemical and mechanical characterizations were specified by the contact angle and tensile test. O2plasma treatment was used to improve surface hydrophilicity. We used the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay to evaluate mESCs adhesion and proliferation before and after surface modification. The influence of the orientation of the nanofibers on mESCs growth was evaluated by scanning electron microscopy (SEM). Statistical analysis was performed using one-way analysis of variance (ANOVA) With differences considered statistically significant at p≤0.05. RESULTS The results showed that plasma treatment improved the hydrophilic property of PCL scaffolds. MTT assay showed a significant increase in proliferation of mESCs on plasma treated PCL (p-PCL) scaffolds compared to non-treated PCL (p=0.05). However gelatin coated tissue culture plate (TCP) had a better effect in initial cell attachment after one day of cell seeding. There was more cell proliferation on day 3 in aligned plasma treated (AP) nanofibers compared to the TCP. SEM showed optical density of the cell colonies. Aligned nanofibrous scaffolds had larger colony sizes and spread more than random nanofibrous scaffolds. CONCLUSION This study showed that plasma treating of scaffolds was a more suitable substrate for growth and cell attachment. In addition, aligned nanofibrous scaffolds highly supported the proliferation and spreading of mESCs when compared to random nanofibrous scaffolds and TCP.
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Affiliation(s)
- Naghmeh Abbasi
- Department of Biology, School of Basic Science, Science and Research Branch, Islamic Azad University,
Tehran, Iran,Department of Stem Cell Biology, Stem Cell Technology Research Center, Tehran, Iran
| | - Sara Soudi
- Department of Stem Cell Biology, Stem Cell Technology Research Center, Tehran, Iran
| | - Nasim Hayati-Roodbari
- Department of Biology, School of Basic Science, Science and Research Branch, Islamic Azad University,
Tehran, Iran
| | - Masumeh Dodel
- Department of Nanotechnology and Tissue Engineering, Stem Cell Technology Research Center,
Tehran, Iran,Department of Textile Engineering, Amirkabir University of Technology, Tehran, Iran
| | - Masoud Soleimani
- Department of Nanotechnology and Tissue Engineering, Stem Cell Technology Research Center,
Tehran, Iran,Department of Hematology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran,P.O.Box: 14115-111Department of HematologyFaculty of Medical SciencesTarbiat Modares UniversityTehranIran
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