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Hasan Aneem T, Sarker M, Wong SY, Lim S, Li X, Rashed A, Chakravarty S, Arafat MT. Antimicrobial peptide immobilization on catechol-functionalized PCL/alginate wet-spun fibers to combat surgical site infection. J Mater Chem B 2024. [PMID: 38958038 DOI: 10.1039/d4tb00889h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/04/2024]
Abstract
Surgical site infection (SSI) caused by pathogenic bacteria leads to delayed wound healing and extended hospitalization. Inappropriate uses of antibiotics have caused a surge in SSI and common antibiotics are proving to be ineffective against SSI. Antimicrobial peptides (AMPs) can be a potential solution to prevent SSI because of their broad spectrum of antimicrobial activities. In this study, naturally sourced AMPs were studied along with microfibers, fabricated by a novel wet-spinning method using sodium alginate and polycaprolactone. Afterward, fibers were functionalized by the catechol groups of dopamine immobilizing nucleophilic AMPs on the surface. Conjugation between PCL and alginate resulted in fibers with smooth surfaces improving their mechanical strength via hydrogen bonds. Having an average diameter of 220 μm, the mechanical properties of the fiber complied with USP standards for suture size 3-0. Engineered microfibers were able to hinder the growth of Proteus spp., a pathogenic bacterium for at least 60 hours whereas antibiotic ceftazidime failed. When subjected to a linear incisional wound model study, accelerated healing was observed when the wound was closed using the engineered fiber compared to Vicryl. The microfibers promoted faster re-epithelialization compared to Vicryl proving their higher wound healing capacity.
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Affiliation(s)
- Taufiq Hasan Aneem
- Department of Biomedical Engineering, Bangladesh University of Engineering and Technology (BUET), Dhaka-1205, Bangladesh.
| | - Mridul Sarker
- Division of Bioengineering, School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637457, Singapore
| | - Siew Yee Wong
- Institute of Sustainability for Chemicals, Energy and Environment, A*STAR (Agency for Science, Technology and Research), Singapore, 138634, Singapore
| | - Sierin Lim
- Division of Bioengineering, School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637457, Singapore
| | - Xu Li
- Institute of Sustainability for Chemicals, Energy and Environment, A*STAR (Agency for Science, Technology and Research), Singapore, 138634, Singapore
- Institute of Materials Research and Engineering (IMRE), A*STAR (Agency for Science, Technology and Research), Singapore, 138634, Singapore
| | - Asif Rashed
- Department of Microbiology, Mugda Medical College, Dhaka-1214, Bangladesh
| | - Saumitra Chakravarty
- Department of Pathology, Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka-1000, Bangladesh
| | - M Tarik Arafat
- Department of Biomedical Engineering, Bangladesh University of Engineering and Technology (BUET), Dhaka-1205, Bangladesh.
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Gómez-Álvarez M, Agustina-Hernández M, Francés-Herrero E, Rodríguez-Eguren A, Bueno-Fernandez C, Cervelló I. Addressing Key Questions in Organoid Models: Who, Where, How, and Why? Int J Mol Sci 2023; 24:16014. [PMID: 37958996 PMCID: PMC10650475 DOI: 10.3390/ijms242116014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 10/26/2023] [Accepted: 11/01/2023] [Indexed: 11/15/2023] Open
Abstract
Organoids are three-dimensional cellular structures designed to recreate the biological characteristics of the body's native tissues and organs in vitro. There has been a recent surge in studies utilizing organoids due to their distinct advantages over traditional two-dimensional in vitro approaches. However, there is no consensus on how to define organoids. This literature review aims to clarify the concept of organoids and address the four fundamental questions pertaining to organoid models: (i) What constitutes organoids?-The cellular material. (ii) Where do organoids grow?-The extracellular scaffold. (iii) How are organoids maintained in vitro?-Via the culture media. (iv) Why are organoids suitable in vitro models?-They represent reproducible, stable, and scalable models for biological applications. Finally, this review provides an update on the organoid models employed within the female reproductive tract, underscoring their relevance in both basic biology and clinical applications.
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Affiliation(s)
- María Gómez-Álvarez
- Instituto de Investigación Sanitaria La Fe (IIS La Fe), IVI Foundation, IVIRMA Global Research Alliance, 46026 Valencia, Spain; (M.G.-Á.); (M.A.-H.); (E.F.-H.); (A.R.-E.); (C.B.-F.)
| | - Marcos Agustina-Hernández
- Instituto de Investigación Sanitaria La Fe (IIS La Fe), IVI Foundation, IVIRMA Global Research Alliance, 46026 Valencia, Spain; (M.G.-Á.); (M.A.-H.); (E.F.-H.); (A.R.-E.); (C.B.-F.)
| | - Emilio Francés-Herrero
- Instituto de Investigación Sanitaria La Fe (IIS La Fe), IVI Foundation, IVIRMA Global Research Alliance, 46026 Valencia, Spain; (M.G.-Á.); (M.A.-H.); (E.F.-H.); (A.R.-E.); (C.B.-F.)
- Department of Pediatrics, Obstetrics and Gynecology, Universitat de València, 46010 Valencia, Spain
| | - Adolfo Rodríguez-Eguren
- Instituto de Investigación Sanitaria La Fe (IIS La Fe), IVI Foundation, IVIRMA Global Research Alliance, 46026 Valencia, Spain; (M.G.-Á.); (M.A.-H.); (E.F.-H.); (A.R.-E.); (C.B.-F.)
| | - Clara Bueno-Fernandez
- Instituto de Investigación Sanitaria La Fe (IIS La Fe), IVI Foundation, IVIRMA Global Research Alliance, 46026 Valencia, Spain; (M.G.-Á.); (M.A.-H.); (E.F.-H.); (A.R.-E.); (C.B.-F.)
- Department of Pediatrics, Obstetrics and Gynecology, Universitat de València, 46010 Valencia, Spain
| | - Irene Cervelló
- Instituto de Investigación Sanitaria La Fe (IIS La Fe), IVI Foundation, IVIRMA Global Research Alliance, 46026 Valencia, Spain; (M.G.-Á.); (M.A.-H.); (E.F.-H.); (A.R.-E.); (C.B.-F.)
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3
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Chang KT, Hung YH, Chiu ZY, Chang JY, Yen KT, Liu CY. Fabrication of elliptically constructed liquid crystalline elastomeric scaffolds for 3D artificial tissues. J Mech Behav Biomed Mater 2023; 146:106056. [PMID: 37573762 DOI: 10.1016/j.jmbbm.2023.106056] [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: 06/02/2023] [Revised: 07/27/2023] [Accepted: 07/31/2023] [Indexed: 08/15/2023]
Abstract
Inspired by the orientation and the fibrous structure of human muscle tissues, we fabricated preconstructed porous liquid crystalline (LC) scaffolds through a two-step polymerization and salt leaching method. A novel strategy combining the aligning properties of LCs and the ease of processing of elastomers for the preparation of elliptical scaffolds for muscle cell culture was proposed in this research. Different from the other types of scaffolds, our biocompatible LC scaffold that can be implanted into the human body using a supporting unit to improve the mechanical properties compared with those of natural muscle. To evaluate the synthesized scaffolds, in vitro experiments using normal human dermal fibroblast (NHDF) cells and smooth muscle cells from rats were carried out, and the sample cells were cultured on each sample scaffold. Based on the results of long-term culture of NHDF cells on the LC scaffolds, it can be confirmed that all three kinds of LC scaffolds have good biocompatibility and provide enough space for cell growth. The addition of gelatin can significantly enhance the biocompatibility of the synthesized scaffolds. Evaluation of scaffold morphologies on cell growth indicates that the molecular arrangement on the scaffolds can induce the growth direction of smooth muscle cells to a certain extent, thereby increasing the formation of highly ordered arrangement tissues. The population doubling time of NHDF cells on the different scaffolds suggest that gelatin can improve the attachment and growth of cells. Investigation of cell viability on LC scaffolds shows that the original LC scaffolds already possess excellent biocompatibility. Additionally, the average cell viability of smooth muscle cells was above 90%, showing that the LC scaffolds in this research are suitable for application in muscle tissue engineering. Based on the results, the gelatin-coated scaffolds are more conducive to the growth of cells in this research and provide promising candidates for tissue engineering in biomedical fields and research fields.
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Affiliation(s)
- Kai-Ti Chang
- Department of Chemical Engineering, National Cheng Kung University, Tainan, 701401, Taiwan
| | - Yi-Hua Hung
- Department of Chemical Engineering, National Cheng Kung University, Tainan, 701401, Taiwan
| | - Zi-Yun Chiu
- Department of Materials Science and Engineering, National Cheng Kung University, Tainan, 701401, Taiwan
| | - Jia-Ying Chang
- Department of Materials Science and Engineering, National Cheng Kung University, Tainan, 701401, Taiwan
| | - Kai-Ting Yen
- Department of Materials Science and Engineering, National Cheng Kung University, Tainan, 701401, Taiwan
| | - Chun-Yen Liu
- Department of Materials Science and Engineering, National Cheng Kung University, Tainan, 701401, Taiwan; Fire Protection and Safety Research Center, National Cheng Kung University, Tainan, 711015, Taiwan.
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4
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Lashkari M, Rahmani M, Yousefpoor Y, Ahmadi-Zeidabadi M, Faridi-Majidi R, Ameri Z, Salary M, Azizi S, Shahabi A, Rahi A, Mirzaei-Parsa MJ. Cell-based wound dressing: Bilayered PCL/gelatin nanofibers-alginate/collagen hydrogel scaffold loaded with mesenchymal stem cells. Int J Biol Macromol 2023; 239:124099. [PMID: 36948335 DOI: 10.1016/j.ijbiomac.2023.124099] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 03/08/2023] [Accepted: 03/16/2023] [Indexed: 03/24/2023]
Abstract
Wound dressing is applied to promote the healing process, wound protection, and additionally regeneration of injured skin. In this study, a bilayer scaffold composed of a hydrogel and nanofibers was fabricated to improve the regeneration of injured skin. To this end, polycaprolactone/gelatin (PCL/Gel) nanofibers were electrospun directly on the prepared collagen/alginate (Col/Alg) hydrogel. The bilayer scaffold was characterized by scanning electron microscopy (SEM), Fourier transform infrared (FTIR), mechanical properties, and swelling/degradation time. Cytotoxicity assays were evaluated using MTT assay. Then, the nanofiber and bilayer scaffolds were seeded with Adipose-derived stem cells (ADSCs). ADSCs were isolated from rat adipose tissue and analyzed using flow cytometry, in advance. Full-thickness wounds on the backs of rats were dressed with ADSCs-seeded bilayer scaffolds and nanofibers. Histopathological evaluations were performed after 14 and 21 days using H&E (hematoxylin and eosin) staining. The results indicated that re-epithelialization, angiogenesis, and collagen remodeling were enhanced in ADSCs-seeded bilayer scaffolds and nanofibers in comparison with the control group. In conclusion, the best re-epithelialization, collagen organization, neovascularization, and low presence of inflammation in the wound area were observed in the ADSCs-seeded bilayer scaffolds.
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Affiliation(s)
- Mahla Lashkari
- Department of Hematology and Laboratory Sciences, Faculty of Allied Medical Sciences, Kerman University of Medical Sciences, Kerman, Iran; Cell Therapy and Regenerative Medicine Comprehensive Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Mahya Rahmani
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Yaser Yousefpoor
- Department of Medical Biotechnology, School of Paramedical Sciences, Torbat Heydariyeh University of Medical Sciences, Iran
| | - Meysam Ahmadi-Zeidabadi
- Intracellular Recording Lab, Kerman Neuroscience Research Center, Neuropharmacology Institute, Kerman University of Medical Sciences, Kerman, Iran
| | - Reza Faridi-Majidi
- Department of Medical Nanotechnology, School of Advanced Medical Technologies, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Ameri
- Department of Tissue Engineering and Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran; Department of Hematology and Laboratory Sciences, Faculty of Allied Medical Sciences, Kerman University of Medical Sciences, Kerman, Iran
| | - Moein Salary
- Anatomical Sciences Department, Faculty of Medicine, Kerman University of Medical Sciences, Iran
| | - Shahrzad Azizi
- Department of Pathobiology, Faculty of Veterinary Medicine, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Arman Shahabi
- Department of Hematology and Laboratory Sciences, Faculty of Allied Medical Sciences, Kerman University of Medical Sciences, Kerman, Iran
| | - Amid Rahi
- Cell Therapy and Regenerative Medicine Comprehensive Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Mohamad Javad Mirzaei-Parsa
- Department of Hematology and Laboratory Sciences, Faculty of Allied Medical Sciences, Kerman University of Medical Sciences, Kerman, Iran; Cell Therapy and Regenerative Medicine Comprehensive Center, Kerman University of Medical Sciences, Kerman, Iran; Department of Medical Nanotechnology, Faculty of Allied Medical Sciences, Kerman University of Medical Sciences, Kerman, Iran.
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Cruz-Maya I, Guarino V. 3D Scaffolds Fabrication via Bicomponent Microgels Assembly: Process Optimization and In Vitro Characterization. MICROMACHINES 2022; 13:1726. [PMID: 36296078 PMCID: PMC9607065 DOI: 10.3390/mi13101726] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 10/06/2022] [Accepted: 10/07/2022] [Indexed: 06/16/2023]
Abstract
In the last decade, different technological approaches have been proposed for the fabrication of 3D models suitable to evaluate in vitro cell response. Among them, electro fluid dynamic atomization (EFDA) belonging to the family of electro-assisted technologies allows for the dropping of polysaccharides and/or proteins solutions to produce micro-scaled hydrogels or microgels with the peculiar features of hydrogel-like materials (i.e., biocompatibility, wettability, swelling). In this work, a method to fabricate 3D scaffolds by the assembly of bicomponent microgels made of sodium alginate and gelatin was proposed. As first step, optical and scanning electron microscopy with the support of image analysis enabled to explore the basic properties of single blocks in terms of correlation between particle morphology and process parameters (i.e., voltage, flow rate, electrode gap, and needle diameter). Chemical analysis via ninhydrin essays and FTIR analysis confirmed the presence of gelatin, mostly retained by physical interactions into the alginate network mediated by electrostatic forces. In vitro tests confirmed the effect of biochemical signals exerted by the protein on the biological response of hMSCs cultured onto the microgels surface. Hence, it is concluded that alginate/gelatin microgels assemblies can efficiently work as 3D scaffolds able to support in vitro cells functions, thus providing a friendly microenvironment to investigate in vitro cell interactions.
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Tarricone G, Carmagnola I, Chiono V. Tissue-Engineered Models of the Human Brain: State-of-the-Art Analysis and Challenges. J Funct Biomater 2022; 13:jfb13030146. [PMID: 36135581 PMCID: PMC9501967 DOI: 10.3390/jfb13030146] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 09/03/2022] [Accepted: 09/06/2022] [Indexed: 11/26/2022] Open
Abstract
Neurological disorders affect billions of people across the world, making the discovery of effective treatments an important challenge. The evaluation of drug efficacy is further complicated because of the lack of in vitro models able to reproduce the complexity of the human brain structure and functions. Some limitations of 2D preclinical models of the human brain have been overcome by the use of 3D cultures such as cell spheroids, organoids and organs-on-chip. However, one of the most promising approaches for mimicking not only cell structure, but also brain architecture, is currently represented by tissue-engineered brain models. Both conventional (particularly electrospinning and salt leaching) and unconventional (particularly bioprinting) techniques have been exploited, making use of natural polymers or combinations between natural and synthetic polymers. Moreover, the use of induced pluripotent stem cells (iPSCs) has allowed the co-culture of different human brain cells (neurons, astrocytes, oligodendrocytes, microglia), helping towards approaching the central nervous system complexity. In this review article, we explain the importance of in vitro brain modeling, and present the main in vitro brain models developed to date, with a special focus on the most recent advancements in tissue-engineered brain models making use of iPSCs. Finally, we critically discuss achievements, main challenges and future perspectives.
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Affiliation(s)
- Giulia Tarricone
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Corso Duca Degli Abruzzi 24, 10129 Turin, Italy
- PolitoBioMedLab, Politecnico di Torino, Corso Duca Degli Abruzzi 24, 10129 Turin, Italy
- Interuniversity Center for the Promotion of the 3Rs Principle in Teaching and Research, Centro 3R, 56122 Pisa, Italy
- Nanobiointeractions & Nanodiagnostics, Istituto Italiano di Tecnologia (IIT), Via Morego 30, 16163 Genova, Italy
- Department of Chemistry and Industrial Chemistry, University of Genova, Via Dodecaneso 31, 16146 Genova, Italy
| | - Irene Carmagnola
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Corso Duca Degli Abruzzi 24, 10129 Turin, Italy
- PolitoBioMedLab, Politecnico di Torino, Corso Duca Degli Abruzzi 24, 10129 Turin, Italy
- Interuniversity Center for the Promotion of the 3Rs Principle in Teaching and Research, Centro 3R, 56122 Pisa, Italy
| | - Valeria Chiono
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Corso Duca Degli Abruzzi 24, 10129 Turin, Italy
- PolitoBioMedLab, Politecnico di Torino, Corso Duca Degli Abruzzi 24, 10129 Turin, Italy
- Interuniversity Center for the Promotion of the 3Rs Principle in Teaching and Research, Centro 3R, 56122 Pisa, Italy
- Correspondence:
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Avci MO, Muzoglu N, Yilmaz AE, Yarman BS. Antibacterial, cytotoxicity and biodegradability studies of polycaprolactone nanofibers holding green synthesized Ag nanoparticles using atropa belladonna extract. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2022; 33:1157-1180. [PMID: 35192427 DOI: 10.1080/09205063.2022.2045665] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 02/19/2022] [Accepted: 02/20/2022] [Indexed: 06/14/2023]
Abstract
Atropa belladonna is one of the herbs used to treat wounds and prevent inflammation. This study provides a scientific assessment for the wound healing potential of biodegradable nanofibers containing Ag nanoparticles encapsulated with atropa belladonna extract (eAgNPs). Ultraviolet-visible (UV-vis) spectroscopy was used to observe the localized surface plasmon resonance (LSPR) band of AgNPs synthesized from atropa belladonna extract prepared under different conditions. Polycaprolactone (PCL) nanofibers with eAgNPs were fabricated using the electrospinning technique. The distribution of AgNPs and eAgNPs and the size of nanofibers were characterized with scanning and transmission electron microscopy (SEM, TEM) before and after degradation at the end of 18 weeks. Fourier transform infrared (FTIR) spectroscopy showed the surface interactivity between AgNPs, atropa belladonna extract and PCL nanofibers and also approved the modification of PCL nanofibers with eAgNPs. X-ray diffraction analysis (XRD) defined the formation of the crystalline AgNPs and appreciated the orientation of the nanofibers. Results of tension tests revealed that modification of PCL nanofibers with pure AgNPs and eAgNPs significantly increased strength and tensile modulus. Due to the hydrophobic nature of PCL, modification with pure AgNPs and eAgNPs slightly reduced its hydrophobicity. Biodegradation tests of PCL nanofibers with eAgNPs exhibited a higher degradation rate than neat PCL nanofibers. In vitro MTT results revealed that eAgNPs doped PCL samples have better cell viability than AgNPs doped and neat PCL nanofibers. Owing to their antibacterial properties, biodegradation rates, low cytotoxicity, mechanical and surface morphologic properties of AgNPs modified PCL nanofibers containing atropa belladonna are considered to have a great potential for skin regeneration.
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Affiliation(s)
- Muhammed Onur Avci
- Department of Biomedical Engineering, Istanbul University-Cerrahpasa (IUC), Istanbul, Turkey
| | - Nedim Muzoglu
- Department of Biomedical Engineering, Istanbul University-Cerrahpasa (IUC), Istanbul, Turkey
| | - Aysel Ersoy Yilmaz
- Department of Electric and Electronic Engineering, Istanbul University-Cerrahpasa (IUC), Istanbul, Turkey
| | - Binboga Siddik Yarman
- Department of Electric and Electronic Engineering, Istanbul University-Cerrahpasa (IUC), Istanbul, Turkey
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Sahrayi H, Hosseini E, Ramazani Saadatabadi A, Atyabi SM, Bakhshandeh H, Mohamadali M, Aidun A, Farasati Far B. Cold atmospheric plasma modification and electrical conductivity induction in gelatin/polyvinylidene fluoride nanofibers for neural tissue engineering. Artif Organs 2022; 46:1504-1521. [PMID: 35403725 DOI: 10.1111/aor.14258] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 03/25/2022] [Accepted: 04/01/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND This research follows some investigations through neural tissue engineering, including fabrication, surface treatment, and evaluation of novel self-stimuli conductive biocompatible and degradable nanocomposite scaffolds. METHODS Gelatin as a biobased material and polyvinylidene fluoride (PVDF) as a mechanical, electrical, and piezoelectric improvement agent were co-electrospun. In addition, polyaniline/graphene (PAG) nanoparticles were synthesized and added to gelatin solutions in different percentages to induce electrical conductivity. After obtaining optimum PAG percentage, cold atmospheric plasma (CAP) treatment was applied over the best samples by different plasma variable parameters. Finally, the biocompatibility of the scaffolds was analyzed and approved by in vitro tests using two different PC12 and C6 cell lines. In the present study the morphology, FTIR, dynamic light scattering, mechanical properties, wettability, contact angle tests, differential scanning calorimetric, rate of degradation, conductivity, biocompatibility, gene expression, DAPI staining, and cell proliferation were investigated. RESULTS The PAG percentage optimization results revealed fiber diameter reduction, conductivity enhancement, young's modulus improvement, hydrophilicity devaluation, water uptake decrement, and degradability reduction in electrospun nanofibers by increasing the PAG concentration. Furthermore, ATR-FTIR, FE-SEM, AFM, and contact angle tests revealed that helium CAP treatment improves scaffold characterizations for 90 seconds in duration time. Furthermore, the results of the MTT assay, FE-SEM, DAPI staining, and RT-PCR revealed that samples containing 2.5% w/w of PAG are the most biocompatible, and CAP treatment increases cell proliferation and improves neural gene expression in the differentiation medium. CONCLUSIONS According to the results, the samples with the 2.5% w/w of PAG could provide a suitable matrix for neural tissue engineering in terms of physicochemical and biological.
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Affiliation(s)
- Hamidreza Sahrayi
- Department of Chemical and Petrochemical Engineering, Sharif University of Technology, Tehran, Iran
| | - Elham Hosseini
- Department of Biomedical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | | | - Seyed Mohammad Atyabi
- Department of Nano biotechnology, New Technologies Research Group, Pasteur Institute of Iran, Tehran, Iran
| | - Haleh Bakhshandeh
- Department of Nano biotechnology, New Technologies Research Group, Pasteur Institute of Iran, Tehran, Iran
| | - Marjan Mohamadali
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Amir Aidun
- National Cell Bank of Iran, Pasteur Institute of Iran, Tehran, Iran.,Tissues and Biomaterials Research Group (TBRG), Universal Scientific Education and Research Network (USERN), Tehran, Iran
| | - Bahareh Farasati Far
- Department of Chemistry, Iran University of Science and Technology, Tehran, Iran
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9
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Cheng Y, Zhang Y, Wu H. Polymeric Fibers as Scaffolds for Spinal Cord Injury: A Systematic Review. Front Bioeng Biotechnol 2022; 9:807533. [PMID: 35223816 PMCID: PMC8864123 DOI: 10.3389/fbioe.2021.807533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 12/16/2021] [Indexed: 11/30/2022] Open
Abstract
Spinal cord injury (SCI) is a complex neurological condition caused by trauma, inflammation, and other diseases, which often leads to permanent changes in strength and sensory function below the injured site. Changes in the microenvironment and secondary injuries continue to pose challenges for nerve repair and recovery after SCI. Recently, there has been progress in the treatment of SCI with the use of scaffolds for neural tissue engineering. Polymeric fibers fabricated by electrospinning have been increasingly used in SCI therapy owing to their biocompatibility, complex porous structure, high porosity, and large specific surface area. Polymer fibers simulate natural extracellular matrix of the nerve fiber and guide axon growth. Moreover, multiple channels of polymer fiber simulate the bundle of nerves. Polymer fibers with porous structure can be used as carriers loaded with drugs, nerve growth factors and cells. As conductive fibers, polymer fibers have electrical stimulation of nerve function. This paper reviews the fabrication, characterization, and application in SCI therapy of polymeric fibers, as well as potential challenges and future perspectives regarding their application.
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Affiliation(s)
- Yuanpei Cheng
- Department of Orthopeadics, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Yanbo Zhang
- Department of Orthopeadics, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Han Wu
- Department of Orthopeadics, China-Japan Union Hospital of Jilin University, Changchun, China
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Chen T, Jiang H, Li X, Zhang D, Zhu Y, Chen X, Yang H, Shen F, Xia H, Zheng J, Xie K. Proliferation and differentiation study of melatonin functionalized polycaprolactone/gelatin electrospun fibrous scaffolds for nerve tissue engineering. Int J Biol Macromol 2022; 197:103-110. [PMID: 34968534 DOI: 10.1016/j.ijbiomac.2021.12.074] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 12/03/2021] [Accepted: 12/12/2021] [Indexed: 12/30/2022]
Abstract
Melatonin (MLT), a pineal neurohormone with multiple neuroprotective, is often used for peripheral nerve recovery and regenerated nerve proliferation. In this study, Polycaprolactone/Gelatin (PG) fibrous electrospun scaffolds with various percentages of MLT (0, 1, 2, and 4%wt) were fabricated for nerve cell growth, the effects of different concentrations of MLT within PG fibers (PG, PGMLT1, PGMLT2, and PGMLT4) on the proliferation and differentiation for PC12 cells were quantitatively evaluated. The microstructures and morphologies of these scaffolds were analyzed by FE-SEM and digital camera. Fourier transform infrared spectrometer (FTIR), X-ray photoelectron spectroscopy (XPS), and Water Contact Angle (WCA) were used to study the composition, ratio and properties of MLT functionalized PG scaffolds. MTT and CLSM analysis showed that appropriate amount of MLT was beneficial to the proliferation of PC12 cell. MLT can also promote cell differentiation, neurite germination, the expression levels of MAP2 mRNA and protein were dramatically increased on the composite scaffolds with the increase of MLT content, moderate addition of MLT (PGMLT2, 2%) had a prominent enhancement for neurite length. This work would provide a more comprehensive reference for further researches on MLT functionalized composite scaffolds and suggest that high-performance PGMLT fibrous scaffolds could be a promising alternative for nerve repair.
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Affiliation(s)
- Tingkuo Chen
- State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment, School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou, Guangdong 510006, China
| | - Haiming Jiang
- State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment, School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou, Guangdong 510006, China
| | - Xiang Li
- State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment, School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou, Guangdong 510006, China
| | - Dao Zhang
- State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment, School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou, Guangdong 510006, China
| | - Yibin Zhu
- State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment, School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou, Guangdong 510006, China
| | - Xueliu Chen
- State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment, School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou, Guangdong 510006, China
| | - Han Yang
- State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment, School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou, Guangdong 510006, China
| | - Fangcheng Shen
- State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment, School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou, Guangdong 510006, China
| | - Hongyan Xia
- State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment, School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou, Guangdong 510006, China.
| | - Junxia Zheng
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China.
| | - Kang Xie
- State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment, School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou, Guangdong 510006, China.
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11
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Bashiri Z, Zahiri M, Allahyari H, Esmaeilzade B. Proliferation of human spermatogonial stem cells on optimized PCL/Gelatin nanofibrous scaffolds. Andrologia 2022; 54:e14380. [PMID: 35083770 DOI: 10.1111/and.14380] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 12/22/2021] [Accepted: 01/11/2022] [Indexed: 12/26/2022] Open
Abstract
Improvement of culture system and increasing the proliferation of spermatogonia stem cells under in vitro condition are the essential treatment options for infertility before autologous transplantation. Therefore, the present study aimed to evaluate the proliferation of human spermatogonia stem cells on the electrospun polycaprolactone/gelatin nanocomposite. Therefore, for this purpose, nanofiber porous scaffolds were prepared using the electrospinning method and their structures were then confirmed by SEM. After performing swelling, biodegradability and cell adhesion tests, human spermatogonia stem cells were cultured on scaffolds. In addition, both cell viability and proliferation were assessed using immunocytochemistry, flow cytometry and real-time PCR techniques in culturing during a 3-week period. SEM images indicated the presence of fibres with suitable diameters and arrangement as well as a sufficient porosity in nanocomposite scaffolds, showing good biocompatibility and biodegradability. The results show a significant increase in the number of spermatogonia stem cells in the cultured group on scaffold compared with the control group (p ≤ 0.05). As well, the results show that the expressions of integrin ɑ6 and β1 and Plzf genes estimated using real-time PCR in nanofiber scaffolds were significantly higher than those of the control group (p ≤ 0.05). However, the expression of c-Kit gene in the 3D group showed a significant decrease compared with the 2D group. Flow cytometry analysis also showed that the number of Plzf-positive cells was significantly higher in nanofiber porous scaffolds compared with the control group (p ≤ 0.05). Additionally, immunocytochemistry findings confirmed the presence of human spermatogonia stem cell colonies. In general, it seems that the designed nanocomposite scaffold could provide a suitable capacity for self-renewal of human spermatogonia stem cells, which can have a good application potential in research and reconstructive medicine related to the field of male infertility.
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Affiliation(s)
- Zahra Bashiri
- Stem Cell and Regenerative Medicine Research Center, Iran University of Medical Sciences, Tehran, Iran.,Department of Anatomical Sciences, School of Medical Sciences, Iran University of Medical Sciences, Tehran, Iran
| | - Maria Zahiri
- The Persian Gulf Marine Biotechnology Research Center, The Persian Gulf Biomedical Sciences Research Institute, Bushehr University of Medical Sciences, Bushehr, Iran.,Department of Anatomical Sciences, School of Medical Sciences, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Hamed Allahyari
- Department of Anatomical Sciences, School of Medical Sciences, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Banafshe Esmaeilzade
- Department of Anatomical Sciences, School of Medical Sciences, Bushehr University of Medical Sciences, Bushehr, Iran
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12
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Yahia S, Abo Dena AS, El Nashar RM, El-Sherbiny I. Nanomicelles-in-Coaxial Nanofibers with Exit Channels as Transdermal Delivery Platform for Smoking Cessation. J Mater Chem B 2022; 10:4984-4998. [DOI: 10.1039/d2tb00818a] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Smoking has turned to a life-threatening habit; that is why many nicotine-replacement therapies (NRTs) were reported for smoking cessation including chewing gums, nicotine patches, lozenges, mouth sprays, inhalers and nasal...
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13
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Electrospun Nanofibers of Polycaprolactone/Collagen as a Sustained-Release Drug Delivery System for Artemisinin. Pharmaceutics 2021; 13:pharmaceutics13081228. [PMID: 34452189 PMCID: PMC8402154 DOI: 10.3390/pharmaceutics13081228] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 08/04/2021] [Accepted: 08/05/2021] [Indexed: 11/23/2022] Open
Abstract
The application of artemisinin (ART) in the treatment of malaria has been restricted to a certain degree due to its inherent limitations, such as short half-life, poor solubility, limited bioavailability, and re-crystallization. Electrospun nanofibers loaded with ART provide an excellent solution to these limitations and yield sustained drug release as well as inhibition of drug re-crystallization. In this study, ART-loaded polycaprolactone (PCL)/collagen (Col) nanofibers with different proportions of polymers were prepared. ART-loaded PCL/Col nanofibers were characterized, and further ART anti-crystallization and release behaviors were studied. SEM was used to observe the morphology of PCL/Col nanofibers. X-ray diffraction (XRD) was used to characterize the physical state of ART in ART-loaded PCL/Col nanofibers. Fourier transform infrared spectroscopy (FTIR), water contact angle measurement, weight loss, degree of swelling, and drug release experiments can verify the differences in performance of ART-loaded PCL/Col nanofibers due to different polymer ratios. The release curve was analyzed by kinetics, showing sustained release for up to 48 h, and followed the Fickian release mechanism, which was shown by the diffusion index value obtained from the Korsmeyer-Peppas equation.
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14
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Miri V, Asadi A, Sagha M, Najafzadeh N, Golmohammadi MG. Poly (L-lactic acid) nanofibrous scaffolds support the proliferation and neural differentiation of mouse neural stem and progenitor cells. Int J Dev Neurosci 2021; 81:438-447. [PMID: 33934403 DOI: 10.1002/jdn.10119] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 04/28/2021] [Accepted: 04/28/2021] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND The distribution and growth of cells on nanofibrous scaffolds seem to be an indispensable precondition in cell tissue engineering. The potential use of biomaterial scaffolds in neural stem cell therapy is increasingly attracting attention. AIM In this study, we produced porous nanofibrous scaffolds fabricated from random poly-L-lactic acid (PLLA) to support neurogenic differentiation of neural stem and progenitor cells (NSPCs), isolated from the subventricular zone (SVZ) of the adult mouse brain. METHODS The viability and proliferation of the NSPCs on the nanofibrous PLLA scaffold were also tested by nuclear staining with 4, 6-diamidino-2-phenylindole dihydrochloride (DAPI), 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyl tetrazolium bromide (MTT) assay and scanning electron microscopy (SEM). To investigate the differentiation potential of NSPCs on the scaffolds, the cells were treated with a neurogenic differentiation medium, and immunostaining was done to detect neuronal and glial cells after 14 and 21 days of cultivation. Furthermore, the morphology of differentiated cells on the scaffold was examined using SEM. RESULTS The DAPI staining revealed the proliferation of NSPCs onto the surface of the nanofibrous PLLA scaffold. DAPI-positive cells were counted on days 2 and 5 after cultivation. The mean number of cells in each microscopic field was significantly (p < .05) increased (51 ± 19 on day 2 compared to 77 ± 25 cells on day 5). The results showed that the cell viability on PLLA scaffolds significantly increased compared to control groups. Moreover, cell viability was significantly increased 5 days after culturing (262.3 ± 50.2) as compared to 2 days culture in Vitro (174.2 ± 28.3, p < .05). Scanning electron micrographs also showed that the NSPCs adhered and differentiated on PLLA scaffolds. We found that the neural cell markers, microtubule-associated protein 2 (MAP2) and glial fibrillary acidic protein (GFAP), were expressed in NSPCs seeded on random PLLA scaffolds after 21 days of cultivation. CONCLUSION These results suggest that the PLLA nano-scaffolds, due to their biocompatible property, are an appropriate structure for the proliferation, differentiation, and normal growth of NSPCs.
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Affiliation(s)
- Vahideh Miri
- Department of Biology, Faculty of Science, University of Mohaghegh Ardabili, Ardabil, Iran
- Research Laboratory for Embryology and Stem Cells, Department of Anatomical Sciences, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Asadollah Asadi
- Department of Biology, Faculty of Science, University of Mohaghegh Ardabili, Ardabil, Iran
| | - Mohsen Sagha
- Research Laboratory for Embryology and Stem Cells, Department of Anatomical Sciences, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Nowruz Najafzadeh
- Research Laboratory for Embryology and Stem Cells, Department of Anatomical Sciences, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Mohammad Ghasem Golmohammadi
- Research Laboratory for Embryology and Stem Cells, Department of Anatomical Sciences, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
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15
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Oner A, Tufek E, Yezer I, Birol A, Demir M, Er S, Demirkol DO. High generation dendrimer decorated poly-Ɛ-caprolactone/polyacrylic acid electrospun nanofibers for the design of a bioelectrochemical sensing surface. REACT FUNCT POLYM 2021. [DOI: 10.1016/j.reactfunctpolym.2021.104853] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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16
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Shahrousvand M, Haddadi-Asl V, Shahrousvand M. Step-by-step design of poly (ε-caprolactone) /chitosan/Melilotus officinalis extract electrospun nanofibers for wound dressing applications. Int J Biol Macromol 2021; 180:36-50. [PMID: 33727184 DOI: 10.1016/j.ijbiomac.2021.03.046] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 02/26/2021] [Accepted: 03/09/2021] [Indexed: 01/04/2023]
Abstract
Composition of polymers and choosing the type of solvents in electrospinning systems is of great importance to achieve a mat with optimal properties. In this work, with emphasizing the influence of a novel solvent system, an electrospun wound dressing was designed in four steps. Firstly, to study the effect of polymer-solvent interactions and electrospinning distance, a constant amount of polycaprolactone (PCL) was dissolved at different compositions of formic acid (FA)/dichloromethane (DCM) and was electrospun at different distances. The composition of 80FA/20DCM and distance of 15 cm were selected as optimal conditions by lowest average diameter of fibers and simultaneously good surface uniformity. In the second step, the concentration of PCL was considered variable to achieve the lowest diameter of fibers. Finally, in the third and fourth steps, different concentrations of chitosan (CN) and constant dosage of Melilotus officinalis (MO) extract were added to the solution. The extract contained fibers had a mean diameter of 275 ± 41 nm which is in the required condition for wound caring. Eventually, the optimized PCL/CN and PCL/CN/MO specimens were evaluated by FTIR, DSC, Tensile, water contact angle, antibacterial assays, cell viability, and drug release analysis for determining their function and properties.
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Affiliation(s)
- Mohammad Shahrousvand
- Department of Polymer Engineering and Color Technology, Amirkabir University of Technology, Hafez Avenue, 15875-4413 Tehran, Iran
| | - Vahid Haddadi-Asl
- Department of Polymer Engineering and Color Technology, Amirkabir University of Technology, Hafez Avenue, 15875-4413 Tehran, Iran.
| | - Mohsen Shahrousvand
- Caspian Faculty of Engineering, College of Engineering, University of Tehran, P.O. Box 119-43841, Chooka Branch, Rezvanshahr, 4386156387, Guilan Province, Iran.
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17
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Siafaka PI, Özcan Bülbül E, Dilsiz P, Karantas ID, Okur ME, Üstündağ Okur N. Detecting and targeting neurodegenerative disorders using electrospun nanofibrous matrices: current status and applications. J Drug Target 2021; 29:476-490. [PMID: 33269637 DOI: 10.1080/1061186x.2020.1859516] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Neurodegeneration is defined as the progressive atrophy and loss of function of neurons; it is present in neurodegenerative disorders such as Multiple Sclerosis, Alzheimer's, Huntington's, and Parkinson's diseases. The detection of such disorders is performed by various imaging modalities while their therapeutic management is quite challenging. Besides, the pathogenesis of neurodegenerative disorders is still under ongoing research due to complex and multi-factorial mechanisms. Currently, targeting the specific proteins responsible for neurodegeneration is of great interest to many researchers. Furthermore, nanotechnology-based approaches for targeting the affected neurons became an emerging field of interest. Nanostructures of various forms have been developed aiming to act as therapeutics for neurodegeneration, in which electrospun nanofibers seem to play an important role as biomedical products for both detection and management of the diseases. Electrospinning is an intriguing method able to produce nanofibers with a wide range of sizes and morphological characteristics. Such nanofibrous matrices can be delivered through different administration routes to target various diseases. In this review, the most recent advancements in electrospun nanofibrous systems that target or detect multiple neurodegenerative diseases have been enlightened and an introduction to the general aspects of neurodegenerative diseases and the electrospinning process has been made. Finally, future perspectives of neurodegeneration targeting were also discussed.
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Affiliation(s)
- Panoraia I Siafaka
- School of Chemistry, Faculty of Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Ece Özcan Bülbül
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Istinye University, Istanbul, Turkey
| | - Pelin Dilsiz
- Department of Physiology, School of Medicine, Regenerative and Restorative Medical Research Center (REMER), Istanbul Medipol University, Istanbul, Turkey.,Faculty of Pharmacy, Altınbaş University, Istanbul, Turkey
| | | | - Mehmet Evren Okur
- Department of Pharmacology, Faculty of Pharmacy, University of Health Sciences, Istanbul, Turkey
| | - Neslihan Üstündağ Okur
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Health Sciences, Istanbul, Turkey
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18
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Sridharan D, Palaniappan A, Blackstone BN, Dougherty JA, Kumar N, Seshagiri PB, Sayed N, Powell HM, Khan M. In situ differentiation of human-induced pluripotent stem cells into functional cardiomyocytes on a coaxial PCL-gelatin nanofibrous scaffold. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 118:111354. [PMID: 33254974 PMCID: PMC7708677 DOI: 10.1016/j.msec.2020.111354] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 08/03/2020] [Accepted: 08/05/2020] [Indexed: 12/20/2022]
Abstract
Human-induced pluripotent stem cells (hiPSCs) derived cardiomyocytes (hiPSC-CMs) have been explored for cardiac regeneration and repair as well as for the development of in vitro 3D cardiac tissue models. Existing protocols for cardiac differentiation of hiPSCs utilize a 2D culture system. However, the efficiency of hiPSC differentiation to cardiomyocytes in 3D culture systems has not been extensively explored. In the present study, we investigated the efficiency of cardiac differentiation of hiPSCs to functional cardiomyocytes on 3D nanofibrous scaffolds. Coaxial polycaprolactone (PCL)-gelatin fibrous scaffolds were fabricated by electrospinning and characterized using scanning electron microscopy (SEM) and fourier transform infrared (FTIR) spectroscopy. hiPSCs were cultured and differentiated into functional cardiomyocytes on the nanofibrous scaffold and compared with 2D cultures. To assess the relative efficiencies of both the systems, SEM, immunofluorescence staining and gene expression analyses were performed. Contractions of differentiated cardiomyocytes were observed in 2D cultures after 2 weeks and in 3D cultures after 4 weeks. SEM analysis showed no significant differences in the morphology of cells differentiated on 2D versus 3D cultures. However, gene expression data showed significantly increased expression of cardiac progenitor genes (ISL-1, SIRPA) in 3D cultures and cardiomyocytes markers (TNNT, MHC6) in 2D cultures. In contrast, immunofluorescence staining showed no substantial differences in the expression of NKX-2.5 and α-sarcomeric actinin. Furthermore, uniform migration and distribution of the in situ differentiated cardiomyocytes was observed in the 3D fibrous scaffold. Overall, our study demonstrates that coaxial PCL-gelatin nanofibrous scaffolds can be used as a 3D culture platform for efficient differentiation of hiPSCs to functional cardiomyocytes.
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Affiliation(s)
- Divya Sridharan
- Department of Emergency Medicine, Wexner Medical Center, The Ohio State University, Columbus, OH, USA
| | - Arunkumar Palaniappan
- Department of Emergency Medicine, Wexner Medical Center, The Ohio State University, Columbus, OH, USA; Centre for Biomaterials, Cellular and Molecular Theranostics, Vellore Institute of Technology, Vellore, India
| | - Britani N Blackstone
- Department of Materials Science and Engineering, The Ohio State University, Columbus, OH, USA
| | - Julie A Dougherty
- Department of Emergency Medicine, Wexner Medical Center, The Ohio State University, Columbus, OH, USA; Dorothy M. Davis Heart & Lung Research Institute, Wexner Medical Center, The Ohio State University, Columbus, OH, USA
| | - Naresh Kumar
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH, USA
| | - Polani B Seshagiri
- Department of Molecular Reproduction Development and Genetics, Indian Institute of Science, C V Raman Road, Bangalore KA-560012, India
| | - Nazish Sayed
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Heather M Powell
- Department of Materials Science and Engineering, The Ohio State University, Columbus, OH, USA; Department of Biomedical Engineering, The Ohio State University, Columbus, OH, USA; Research Department, Shriners Hospitals for Children, Cincinnati, OH, USA
| | - Mahmood Khan
- Department of Emergency Medicine, Wexner Medical Center, The Ohio State University, Columbus, OH, USA; Department of Physiology and Cell Biology, Wexner Medical Center, The Ohio State University, Columbus, OH, USA; Dorothy M. Davis Heart & Lung Research Institute, Wexner Medical Center, The Ohio State University, Columbus, OH, USA.
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19
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Honkamäki L, Joki T, Grigoryev NA, Levon K, Ylä-Outinen L, Narkilahti S. Novel method to produce a layered 3D scaffold for human pluripotent stem cell-derived neuronal cells. J Neurosci Methods 2020; 350:109043. [PMID: 33345946 DOI: 10.1016/j.jneumeth.2020.109043] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 12/10/2020] [Accepted: 12/11/2020] [Indexed: 01/13/2023]
Abstract
BACKGROUND Three-dimensional (3D) in vitro models have been developed into more in vivo resembling structures. In particular, there is a need for human-based models for neuronal tissue engineering (TE). To produce such a model with organized microenvironment for cells in central nervous system (CNS), a 3D layered scaffold composed of hydrogel and cell guiding fibers has been proposed. NEW METHOD Here, we describe a novel method for producing a layered 3D scaffold consisting of electrospun poly (L,D-lactide) fibers embedded into collagen 1 hydrogel to achieve better resemblance of cells' natural microenvironment for human pluripotent stem cell (hPSC)-derived neurons. The scaffold was constructed via a single layer-by-layer process using an electrospinning technique with a unique collector design. RESULTS The method enabled the production of layered 3D cell-containing scaffold in a single process. HPSC-derived neurons were found in all layers of the scaffold and exhibited a typical neuronal phenotype. The guiding fiber layers supported the directed cell growth and extension of the neurites inside the scaffold without additional functionalization. COMPARISON WITH EXISTING METHODS Previous methods have required several process steps to construct 3D layer-by-layer scaffolds. CONCLUSIONS We introduced a method to produce layered 3D scaffolds to mimic the cell guiding cues in CNS by alternating the soft hydrogel matrix and fibrous guidance cues. The produced scaffold successfully enabled the long-term culture of hPSC-derived neuronal cells. This layered 3D scaffold is a useful model for in vitro and in vivo neuronal TE applications.
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Affiliation(s)
- Laura Honkamäki
- NeuroGroup, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.
| | - Tiina Joki
- NeuroGroup, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Nikita A Grigoryev
- Department of Chemical and Biomolecular Engineering, NYU Tandon School of Engineering, Brooklyn, NY, USA
| | - Kalle Levon
- Department of Chemical and Biomolecular Engineering, NYU Tandon School of Engineering, Brooklyn, NY, USA
| | - Laura Ylä-Outinen
- NeuroGroup, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Susanna Narkilahti
- NeuroGroup, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
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20
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Zenoozi S, Mohamad Sadeghi GM, Rafiee M. Synthesis and characterization of biocompatible semi-interpenetrating polymer networks based on polyurethane and cross-linked poly (acrylic acid). Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109974] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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21
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Jeon BM, Yeon GB, Goo HG, Lee KE, Kim DS. PVDF Nanofiber Scaffold Coated with a Vitronectin Peptide Facilitates the Neural Differentiation of Human Embryonic Stem Cells. Dev Reprod 2020; 24:135-147. [PMID: 32734130 PMCID: PMC7375977 DOI: 10.12717/dr.2020.24.2.135] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 05/08/2020] [Accepted: 05/16/2020] [Indexed: 12/24/2022]
Abstract
Polyvinylidene fluoride (PVDF) is a stable and biocompatible material that has been broadly used in biomedical applications. Due to its piezoelectric property, the electrospun nanofiber of PVDF has been used to culture electroactive cells, such as osteocytes and cardiomyocytes. Here, taking advantage of the piezoelectric property of PVDF, we have fabricated a PVDF nanofiber scaffolds using an electrospinning technique for differentiating human embryonic stem cells (hESCs) into neural precursors (NPs). Surface coating with a peptide derived from vitronectin enables hESCs to firmly adhere onto the nanofiber scaffolds and differentiate into NPs under dual-SMAD inhibition. Our nanofiber scaffolds supported the differentiation of hESCs into SOX1-positive NPs more significantly than Matrigel. The NPs generated on the nanofiber scaffolds could give rise to neurons, astrocytes, and oligodendrocyte precursors. Furthermore, comparative transcriptome analysis revealed the variable expressions of 27 genes in the nanofiber scaffold groups, several of which are highly related to the biological processes required for neural differentiation. These results suggest that a PVDF nanofiber scaffold coated with a vitronectin peptide can serve as a highly efficient and defined culture platform for the neural differentiation of hESCs.
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Affiliation(s)
- Byeong-Min Jeon
- Dept. of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Korea.,Institute of Animal Molecular Biotechnology, Korea University, Seoul 02841, Korea
| | - Gyu-Bum Yeon
- Dept. of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Korea.,Institute of Animal Molecular Biotechnology, Korea University, Seoul 02841, Korea
| | | | - Kyung Eun Lee
- Advance Analysis Center, Korean Institute of Science and Technology, Seoul 02792, Korea
| | - Dae-Sung Kim
- Dept. of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Korea.,Institute of Animal Molecular Biotechnology, Korea University, Seoul 02841, Korea.,Dept. of Pediatrics, Korea University College of Medicine, Seoul 08308, Korea
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22
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Miranda CS, Ribeiro ARM, Homem NC, Felgueiras HP. Spun Biotextiles in Tissue Engineering and Biomolecules Delivery Systems. Antibiotics (Basel) 2020; 9:E174. [PMID: 32290536 PMCID: PMC7235791 DOI: 10.3390/antibiotics9040174] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 04/03/2020] [Accepted: 04/10/2020] [Indexed: 11/24/2022] Open
Abstract
Nowadays, tissue engineering is described as an interdisciplinary field that combines engineering principles and life sciences to generate implantable devices to repair, restore and/or improve functions of injured tissues. Such devices are designed to induce the interaction and integration of tissue and cells within the implantable matrices and are manufactured to meet the appropriate physical, mechanical and physiological local demands. Biodegradable constructs based on polymeric fibers are desirable for tissue engineering due to their large surface area, interconnectivity, open pore structure, and controlled mechanical strength. Additionally, biodegradable constructs are also very sought-out for biomolecule delivery systems with a target-directed action. In the present review, we explore the properties of some of the most common biodegradable polymers used in tissue engineering applications and biomolecule delivery systems and highlight their most important uses.
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Affiliation(s)
| | | | | | - Helena P. Felgueiras
- Centre for Textile Science and Technology (2C2T), Department of Textile Engineering, University of Minho, Campus of Azurém, 4800-058 Guimarães, Portugal; (C.S.M.); (A.R.M.R.); (N.C.H.)
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23
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Klimek K, Ginalska G. Proteins and Peptides as Important Modifiers of the Polymer Scaffolds for Tissue Engineering Applications-A Review. Polymers (Basel) 2020; 12:E844. [PMID: 32268607 PMCID: PMC7240665 DOI: 10.3390/polym12040844] [Citation(s) in RCA: 86] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 03/31/2020] [Accepted: 04/02/2020] [Indexed: 12/21/2022] Open
Abstract
Polymer scaffolds constitute a very interesting strategy for tissue engineering. Even though they are generally non-toxic, in some cases, they may not provide suitable support for cell adhesion, proliferation, and differentiation, which decelerates tissue regeneration. To improve biological properties, scaffolds are frequently enriched with bioactive molecules, inter alia extracellular matrix proteins, adhesive peptides, growth factors, hormones, and cytokines. Although there are many papers describing synthesis and properties of polymer scaffolds enriched with proteins or peptides, few reviews comprehensively summarize these bioactive molecules. Thus, this review presents the current knowledge about the most important proteins and peptides used for modification of polymer scaffolds for tissue engineering. This paper also describes the influence of addition of proteins and peptides on physicochemical, mechanical, and biological properties of polymer scaffolds. Moreover, this article sums up the major applications of some biodegradable natural and synthetic polymer scaffolds modified with proteins and peptides, which have been developed within the past five years.
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Affiliation(s)
- Katarzyna Klimek
- Chair and Department of Biochemistry and Biotechnology, Medical University of Lublin, Chodzki 1 Street, 20-093 Lublin, Poland;
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24
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Azarudeen RS, Hassan MN, Yassin MA, Thirumarimurugan M, Muthukumarasamy N, Velauthapillai D, Mustafa K. 3D printable Polycaprolactone-gelatin blends characterized for in vitro osteogenic potency. REACT FUNCT POLYM 2020. [DOI: 10.1016/j.reactfunctpolym.2019.104445] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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25
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Ghaffari-Bohlouli P, Hamidzadeh F, Zahedi P, Shahrousvand M, Fallah-Darrehchi M. Antibacterial nanofibers based on poly(l-lactide-co-d,l-lactide) and poly(vinyl alcohol) used in wound dressings potentially: a comparison between hybrid and blend properties. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2019; 31:219-243. [DOI: 10.1080/09205063.2019.1683265] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Pejman Ghaffari-Bohlouli
- Nano-Biopolymers Research Laboratory, School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Fatemeh Hamidzadeh
- Nano-Biopolymers Research Laboratory, School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Payam Zahedi
- Nano-Biopolymers Research Laboratory, School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Mohsen Shahrousvand
- Caspian Faculty of Engineering, College of Engineering, University of Tehran, Rezvanshahr, Iran
| | - Mahshid Fallah-Darrehchi
- Nano-Biopolymers Research Laboratory, School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
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Preparation and characterization of semi-IPNs of polycaprolactone/poly (acrylic acid)/cellulosic nanowhisker as artificial articular cartilage. Int J Biol Macromol 2019; 142:298-310. [PMID: 31593724 DOI: 10.1016/j.ijbiomac.2019.09.101] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 08/15/2019] [Accepted: 09/13/2019] [Indexed: 12/21/2022]
Abstract
Cartilage is a semi-solid resilient and smooth elastic connective tissue and upon damage, its repair is almost impossible or occurs with a very slow recovery process. Polycaprolactone (PCL), used as a biocompatible polymer, withholds all required mechanical properties, except suitable cell adhesion due to its hydrophobicity. In order to resolve this issue, we sought to introduce appropriate semi-IPNs into the system to regain its hydrophilicity base on increasing of the hydrophilic polymer. PCL and Cellulose nanowhiskers (CNWs) were entrapped in a network of poly (acrylic acid) that had been crosslinked via a novel acrylic-urethane crosslinker. The influential synthetic parameters on the preparation of artificial articular cartilages were investigated based on the Taguchi test design. The prepared CNW, acrylic-urethane crosslinker and semi-IPNs were studied via 1H NMR, FTIR, SEM, TEM, TGA, water swelling, water contact angle, tensile, and MTT analyses. According to the results, the optimal amount of monomer was about 46%. Incorporation of an optimized amount of CNW, which was 0.5%, improved the mechanical properties of artificial cartilage. After a 30 h time period, semi-IPNs showed the water absorption of about 30%. MTT on days 1, 3 and 5, as well as cell attachment, confirmed the biocompatibility of the semi-IPNs.
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27
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Intelligent superabsorbents based on a xanthan gum/poly (acrylic acid) semi-interpenetrating polymer network for application in drug delivery systems. Int J Biol Macromol 2019; 139:509-520. [DOI: 10.1016/j.ijbiomac.2019.07.221] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 07/13/2019] [Accepted: 07/31/2019] [Indexed: 02/07/2023]
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28
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Norouz F, Halabian R, Salimi A, Ghollasi M. A new nanocomposite scaffold based on polyurethane and clay nanoplates for osteogenic differentiation of human mesenchymal stem cells in vitro. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 103:109857. [DOI: 10.1016/j.msec.2019.109857] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 05/12/2019] [Accepted: 06/02/2019] [Indexed: 01/08/2023]
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29
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Yahia S, Khalil IA, El-Sherbiny IM. Sandwich-Like Nanofibrous Scaffolds for Bone Tissue Regeneration. ACS APPLIED MATERIALS & INTERFACES 2019; 11:28610-28620. [PMID: 31328910 DOI: 10.1021/acsami.9b06359] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Advanced bone healing approaches included a wide range of biomaterials that mainly mimic the composition, structure, and properties of bone extracellular matrix with osteogenic activity. The present study aimed to develop a sandwich-like structure of electrospun nanofibers (NFs) based on polycaprolactone (PCL) and chitosan/polyethylene oxide (CS/PEO) composite to stimulate bone fracture healing. The morphology of the fabricated scaffolds was examined using scanning electron microscopy (SEM). Apatite deposition was evaluated using simulated body fluid (SBF). The physicochemical and mechanical properties of samples were analyzed by Fourier transform infrared, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and universal testing machine. SEM images exhibited a porous three-dimensional structure with NF diameters of 514-4745 nm and 68-786 nm for PCL NFs layer and the sandwich-like NFs scaffolds, respectively. Deposition of apatite crystal on scaffolds started at week 2 followed by heavy deposition at week 8. This was confirmed by measuring the consumption of calcium and phosphorous ions from SBF. Thermal stability of scaffolds was confirmed using DSC and TGA. Moreover, the PCL NF layer in the middle of the developed sandwich structure reinforced the scaffolds with bear load up to 12.224 ± 1.12 MPa and Young's modulus of 17.53 ± 3.24 MPa. The scaffolds' porous structure enhanced both cell propagation and proliferation. Besides, the presence of CS in the outer NF layers of the scaffolds increased the hydrophilicity, as evidenced by the reduction of contact angle from 116.6 to 57.6°, which is essential for cell attachment. Cell viability study on mesenchymal stem cells proved the cytocompatibility of the fabricated scaffolds. Finally, in vivo mandibular bone defect rabbit model was used to confirm the regeneration of a new healthy bone within 28 days. In conclusion, the developed scaffolds could be a promising solution to stimulate bone regeneration.
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Affiliation(s)
- Sarah Yahia
- Nanomedicine Lab, Center of Materials Sciences (CMS) , Zewail City of Science and Technology , 6th of October, Giza 12578 , Egypt
| | - Islam A Khalil
- Nanomedicine Lab, Center of Materials Sciences (CMS) , Zewail City of Science and Technology , 6th of October, Giza 12578 , Egypt
- Department of Pharmaceutics and Industrial Pharmacy, College of Pharmacy and Drug Manufacturing , Misr University of Science and Technology (MUST) , 6th of October, Giza 12566 , Egypt
| | - Ibrahim M El-Sherbiny
- Nanomedicine Lab, Center of Materials Sciences (CMS) , Zewail City of Science and Technology , 6th of October, Giza 12578 , Egypt
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30
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Osteogenic differentiation of hMSCs on semi-interpenetrating polymer networks of polyurethane/poly(2‑hydroxyethyl methacrylate)/cellulose nanowhisker scaffolds. Int J Biol Macromol 2019; 138:262-271. [PMID: 31302125 DOI: 10.1016/j.ijbiomac.2019.07.080] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Revised: 06/19/2019] [Accepted: 07/11/2019] [Indexed: 12/18/2022]
Abstract
Poly (2‑hydroxyethyl methacrylate) (PHEMA) was crosslinked in the presence of biocompatible and biodegradable poly(caprolactone) (PCL) based polyurethanes (PUs) and cellulose nanowhiskers (CNWs). The CNWs were obtained from wastepaper. In order to crosslink PHEMA (10 wt%), a novel acrylic-urethane cross-linker was produced by a condensation reaction of PHEMA and hexamethylene diisocyanate (HDI). The PU-PHEMA-CNWs scaffolds were prepared by solvent casting/particulate leaching method in different weight percentages of CNWs (i.e., 0, 0.1, 0.5, and 1 wt%). The structural, mechanical, and in vitro biological properties of bio-nanocomposites were evaluated via FTIR, SEM, tensile, and MTT assay. The tensile strength of PU-PHEMA-0, PU-PHEMA-0.1, PU-PHEMA-0.5, and PU-PHEMA-1 were 76.2, 95.8, 98.1, and 89.8 kPa, respectively. Incorporation of CNWs also resulted in improved cell proliferation on PU-PHEMA-CNWs scaffolds. The bone marrow derived human mesenchymal stem cells (hMSCs) were seeded on the prepared porous scaffolds and incubated in osteogenic medium. Based on the results including calcium content assay, alkaline phosphatase assay, and mineralization staining, PU-PHEMA-CNW scaffolds were introduced as a suitable election for imitating the behavior of cellular niche. Bone mineralization and osteogenesis differentiation of hMSCs on PU-PHEMA-CNW scaffolds were significantly more than control after 14 days.
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31
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Dehqan Niri A, Karimi Zarchi AA, Ghadiri Harati P, Salimi A, Mujokoro B. Tissue engineering scaffolds in the treatment of brain disorders in geriatric patients. Artif Organs 2019; 43:947-960. [DOI: 10.1111/aor.13485] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Revised: 04/26/2019] [Accepted: 04/29/2019] [Indexed: 12/21/2022]
Affiliation(s)
- Alireza Dehqan Niri
- Nanobiotechnology Research Center Baqiyatallah University of Medical Sciences Tehran Iran
| | | | - Parisa Ghadiri Harati
- Department of Physiotherapy, School of Rehabilitation Shahid Beheshti University of Medical Sciences Tehran Iran
| | - Ali Salimi
- Nanobiotechnology Research Center Baqiyatallah University of Medical Sciences Tehran Iran
| | - Basil Mujokoro
- Department of Medical Nanotechnology, School of Advanced Technologies in Medicine Tehran University of Medical Sciences Tehran Iran
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32
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Talebi A, Sadighi Gilani MA, Koruji M, Ai J, Rezaie MJ, Navid S, Salehi M, Abbasi M. Colonization of Mouse Spermatogonial Cells in Modified Soft Agar Culture System Utilizing Nanofibrous Scaffold: A New Approach. Galen Med J 2019; 8:e1319. [PMID: 34466493 PMCID: PMC8343708 DOI: 10.31661/gmj.v8i0.1319] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 09/07/2018] [Accepted: 09/16/2018] [Indexed: 01/23/2023] Open
Abstract
Background: Spermatogonial stem cells (SSCs) are considered in fertility management approaches of prepubertal boys facing cancer therapies. However, in vitro propagation has become an important issue due to a small number of SSCs in testicular tissue. The present study aimed to investigate a modified soft agar culture system by using a nanofibrous scaffold as a new approach to mimic in vivo conditions of SSCs development. Materials and Methods: The SSCs were isolated from neonate mouse testes, cultured on polycaprolactone scaffold, and covered by a layer of soft agar for 2 weeks. Then, the number and diameter of colonies formed in experimental groups were measured and spermatogonial markers (i.e., Plzf, Gfrα1, Id4, and c-Kit) in SSCs colonies were evaluated by a real-time polymerase chain reaction and immunostaining. Results: Our results indicated that the colonization rate of SSCs was significantly higher in the present modified soft agar culture system (P<0.05). Only Plzf indicated a significant increased at the levels (P<0.05), the gene expression levels of Id4, Plzf, and Gfrα1 were higher in the present culture system. In addition, the expression of the c-Kit gene as a differentiating spermatogonia marker was higher in presence of scaffold and soft agar compared with the amount of other experimental groups (P<0.05). Conclusion: The culture system by using nanofibrous scaffold and soft agar as a new culture method suggests the potential of this approach in SSCs enrichment and differentiation strategies for male infertility treatments, as well as in vitro spermatogenesis.
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Affiliation(s)
- Ali Talebi
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Morteza Koruji
- Cellular and Molecular Research Center & Department of Anatomical Sciences, Iran University of Medical Sciences, Tehran, Iran
| | - Jafar Ai
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Jafar Rezaie
- Department of Embryology, Faculty of Medicine, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Shadan Navid
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Majid Salehi
- Department of Tissue Engineering, School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Mehdi Abbasi
- Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
- Correspondence to: Mehdi Abbasi, Department of Anatomy, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran. Telephone Number: +989125139314 Email Address:
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33
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Ghaffari-Bohlouli P, Shahrousvand M, Zahedi P, Shahrousvand M. Performance evaluation of poly (l-lactide-co-D, l-lactide)/poly (acrylic acid) blends and their nanofibers for tissue engineering applications. Int J Biol Macromol 2019; 122:1008-1016. [DOI: 10.1016/j.ijbiomac.2018.09.046] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 08/26/2018] [Accepted: 09/10/2018] [Indexed: 11/30/2022]
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34
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Niu Y, Chen X, Yao D, Peng G, Liu H, Fan Y. Enhancing neural differentiation of induced pluripotent stem cells by conductive graphene/silk fibroin films. J Biomed Mater Res A 2018; 106:2973-2983. [DOI: 10.1002/jbm.a.36486] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 06/11/2018] [Accepted: 06/14/2018] [Indexed: 02/03/2023]
Affiliation(s)
- Yimeng Niu
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education; School of Biological Science and Medical Engineering, Beihang University; Beijing 100083 People's Republic of China
| | - Xiaofang Chen
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education; School of Biological Science and Medical Engineering, Beihang University; Beijing 100083 People's Republic of China
| | - Danyu Yao
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education; School of Biological Science and Medical Engineering, Beihang University; Beijing 100083 People's Republic of China
| | - Ge Peng
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education; School of Biological Science and Medical Engineering, Beihang University; Beijing 100083 People's Republic of China
| | - Haifeng Liu
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education; School of Biological Science and Medical Engineering, Beihang University; Beijing 100083 People's Republic of China
- Beijing Advanced Innovation Centre for Biomedical Engineering; Beihang University; Beijing 100083 People's Republic of China
| | - Yubo Fan
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education; School of Biological Science and Medical Engineering, Beihang University; Beijing 100083 People's Republic of China
- Beijing Advanced Innovation Centre for Biomedical Engineering; Beihang University; Beijing 100083 People's Republic of China
- National Research Center for Rehabilitation Technical Aids; Beijing 100176 China
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35
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Jafari H, Shahrousvand M, Kaffashi B. Reinforced Poly(ε-caprolactone) Bimodal Foams via Phospho-Calcified Cellulose Nanowhisker for Osteogenic Differentiation of Human Mesenchymal Stem Cells. ACS Biomater Sci Eng 2018; 4:2484-2493. [DOI: 10.1021/acsbiomaterials.7b01020] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Hafez Jafari
- School of Chemical Engineering, College of Engineering, University of Tehran, P.O. Box 11365-4563, Enghelab Avenue, Tehran, 1417613131, Iran
| | - Mohsen Shahrousvand
- Caspian Faculty of Engineering, College of Engineering, University of Tehran, P.O. Box 119-43841, Chooka Branch, Rezvanshahr, 4386156387, Guilan Province, Iran
| | - Babak Kaffashi
- School of Chemical Engineering, College of Engineering, University of Tehran, P.O. Box 11365-4563, Enghelab Avenue, Tehran, 1417613131, Iran
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36
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Wang J, Tian L, Luo B, Ramakrishna S, Kai D, Loh XJ, Yang IH, Deen GR, Mo X. Engineering PCL/lignin nanofibers as an antioxidant scaffold for the growth of neuron and Schwann cell. Colloids Surf B Biointerfaces 2018; 169:356-365. [PMID: 29803151 DOI: 10.1016/j.colsurfb.2018.05.021] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Revised: 04/28/2018] [Accepted: 05/09/2018] [Indexed: 01/30/2023]
Abstract
Antioxidant is critical for the successful of nerve tissue regeneration, and biomaterials with antioxidant activity might be favorable for peripheral nerve repair. Lignin, a biopolymer from wood with excellent antioxidant properties, is still "unexplored" as biomaterials. To design an antioxidative bioscaffold for nerve regeneration, here we synthesized lignin-polycaprolactone (PCL) copolymers via solvent free ring-opening polymerization (ROP). Then such lignin-PCL copolymers were incorporated with PCL and engineered into nanofibrous scaffolds for supporting the growth of neuron and Schwann cell. Our results showed that the addition of lignin-PCL enhanced the mechanical properties of PCL nanofibers and endowed them with good antioxidant properties (up to 98.3 ± 1.9% free radical inhibition within 4 h). Cell proliferation assay showed that PCL/lignin-PCL nanofibers increased cell viability compared to PCL fibers, especially after an oxidative challenge. Moreover, Schwann cells and dorsal root ganglion (DRG) neurons cultured on the nanofibers to assess their potential for nerve regeneration. These results suggested that nanofibers with lignin copolymers promoted cell proliferation of both BMSCs and Schwann cells, enhanced myelin basic protein expressions of Schwann cells and stimulated neurite outgrowth of DRG neurons. In all, these sustainable, intrinsically antioxidant nanofibers may be a potential candidate for nerve TE applications.
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Affiliation(s)
- Jing Wang
- State Key Laboratory of Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China; Center for Nanofibers and Nanotechnology, E3-05-14, Department of Mechanical Engineering, Faculty of Engineering, National University of Singapore, 2 Engineering Drive 3, 117576, Singapore
| | - Lingling Tian
- Center for Nanofibers and Nanotechnology, E3-05-14, Department of Mechanical Engineering, Faculty of Engineering, National University of Singapore, 2 Engineering Drive 3, 117576, Singapore
| | - Baiwen Luo
- Singapore Institute for Neurotechnology, National University of Singapore, 28 Medical Drive, #05-COR, 119077, Singapore
| | - Seeram Ramakrishna
- Center for Nanofibers and Nanotechnology, E3-05-14, Department of Mechanical Engineering, Faculty of Engineering, National University of Singapore, 2 Engineering Drive 3, 117576, Singapore
| | - Dan Kai
- Institute of Materials Research and Engineering (IMRE), A*STAR, 2 Fusionopolis Way. Innovis, #08-03, 138634, Singapore.
| | - Xian Jun Loh
- Institute of Materials Research and Engineering (IMRE), A*STAR, 2 Fusionopolis Way. Innovis, #08-03, 138634, Singapore; Department of Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, 117576, Singapore; Singapore Eye Research Institute, 11 Third Hospital Avenue, 168751, Singapore
| | - In Hong Yang
- Singapore Institute for Neurotechnology, National University of Singapore, 28 Medical Drive, #05-COR, 119077, Singapore
| | - G Roshan Deen
- Soft Materials Laboratory, Natural Sciences and Science Education, National Institute of Education Nanyang Technological University, Singapore
| | - Xiumei Mo
- State Key Laboratory of Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China.
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