1
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Bjorgvinsdottir O, Ferguson SJ, Snorradottir BS, Gudjonsson T, Wuertz-Kozak K. The influence of physical and spatial substrate characteristics on endothelial cells. Mater Today Bio 2024; 26:101060. [PMID: 38711934 PMCID: PMC11070711 DOI: 10.1016/j.mtbio.2024.101060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 03/10/2024] [Accepted: 04/13/2024] [Indexed: 05/08/2024] Open
Abstract
Cardiovascular diseases are a main cause of death worldwide, leading to a growing demand for medical devices to treat this patient group. Central to the engineering of such devices is a good understanding of the biology and physics of cell-surface interactions. In existing blood-contacting devices, such as vascular grafts, the interaction between blood, cells, and material is one of the main limiting factors for their long-term durability. An improved understanding of the material's chemical- and physical properties as well as its structure all play a role in how endothelial cells interact with the material surface. This review provides an overview of how different surface structures influence endothelial cell responses and what is currently known about the underlying mechanisms that guide this behavior. The structures reviewed include decellularized matrices, electrospun fibers, pillars, pits, and grated surfaces.
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Affiliation(s)
- Oddny Bjorgvinsdottir
- Faculty of Pharmaceutical Sciences, University of Iceland, Hofsvallagata 53, 107 Reykjavik, Iceland
| | - Stephen J. Ferguson
- Institute for Biomechanics, ETH Zurich, Gloriastrasse 37 / 39, 8092, Zurich, Switzerland
| | | | - Thorarinn Gudjonsson
- Faculty of Medicine, University of Iceland, Vatnsmyrarvegur 16, 101 Reykjavik, Iceland
| | - Karin Wuertz-Kozak
- Department of Biomedical Engineering, Rochester Institute of Technology (RIT), 160 Lomb Memorial Drive Bldg. 73, Rochester, NY, 14623, USA
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2
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Zhou L, Liu F, You J, Zhou B, Guo W, Qu W, Ren X, Gao G. A Novel Self-Pumping Janus Dressing for Promoting Wound Immunomodulation and Diabetic Wound Healing. Adv Healthc Mater 2024; 13:e2303460. [PMID: 37957786 DOI: 10.1002/adhm.202303460] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Indexed: 11/15/2023]
Abstract
Self-pumping dressings become one of the optimal solutions for the controlled management of chronic diabetic wound exudate and wound healing. However, present self-pumping dressings are not only prone to breakage of the loose hydrophobic layer but also have cumbersome and complicated preparation steps, which hinder the application of self-pumping dressings in diabetic wound treatment. Herein, a novel self-pumping structure of superabsorbent Janus dressing is designed to improve the strength of the hydrophobic layer and promote diabetic wound healing. The Janus dressing consists of a hydrophobic layer with a drainage agent (drainage layer) and a fluffy 3D nanofiber cotton (absorbent layer). Regardless of the thickness of the drainage layer, the drainage agent in the drainage layer provides the fluid to penetrate the drainage layer to the absorbent layer for unidirectional fluid draining. In design proof, the superabsorbent Janus dressing provides unidirectional drainage of inflammatory exudate and regulation of macrophage polarization, resulting in faster diabetic wound healing than single-layer dressings. Thus, the Janus dressing demonstrates important clinical implications to offer a novel design and preparation strategy for accelerating diabetic wound healing.
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Affiliation(s)
- Lubin Zhou
- Polymeric and Soft Materials Laboratory, Advanced Institute of Materials Science, School of Chemical Engineering, Changchun University of Technology, Changchun, 130012, P. R. China
| | - Fan Liu
- Polymeric and Soft Materials Laboratory, Advanced Institute of Materials Science, School of Chemical Engineering, Changchun University of Technology, Changchun, 130012, P. R. China
| | - Junyuan You
- Department of Hand Surgery, The Second Hospital of Jilin University, Changchun, 130041, P. R. China
- Department of Hepatobiliary and Pancreatic Surgery, The First Hospital of Jilin University, Changchun, Jilin, 130041, P. R. China
| | - Bo Zhou
- Polymeric and Soft Materials Laboratory, Advanced Institute of Materials Science, School of Chemical Engineering, Changchun University of Technology, Changchun, 130012, P. R. China
| | - Wenlai Guo
- Department of Hand Surgery, The Second Hospital of Jilin University, Changchun, 130041, P. R. China
| | - Wenrui Qu
- Department of Hand Surgery, The Second Hospital of Jilin University, Changchun, 130041, P. R. China
| | - Xiuyan Ren
- Polymeric and Soft Materials Laboratory, Advanced Institute of Materials Science, School of Chemical Engineering, Changchun University of Technology, Changchun, 130012, P. R. China
| | - Guanghui Gao
- Polymeric and Soft Materials Laboratory, Advanced Institute of Materials Science, School of Chemical Engineering, Changchun University of Technology, Changchun, 130012, P. R. China
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3
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Mitropoulou A, Markatos DN, Dimopoulos A, Marazioti A, Mikelis CM, Mavrilas D. Development and Evaluation of Biodegradable Core-Shell Microfibrous and Nanofibrous Scaffolds for Tissue Engineering Applications. J Mater Sci Mater Med 2024; 35:10. [PMID: 38285092 PMCID: PMC10824864 DOI: 10.1007/s10856-024-06777-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 01/09/2024] [Indexed: 01/30/2024]
Abstract
Tissue engineering scaffolds as three-dimensional substrates may serve as ideal templates for tissue regeneration by simulating the structure of the extracellular matrix (ECM). Many biodegradable synthetic polymers, either hydrophobic, like Poly-ε-caprolactone (PCL), or hydrophilic, like Poly(Vinyl Alcohol) (PVA), are widely used as candidate bioactive materials for fabricating tissue engineering scaffolds. However, a combination of good cytocompatibility of hydrophilic polymers with good biomechanical performance of hydrophobic polymers could be beneficial for the in vivo performance of the scaffolds. In this study, we aimed to fabricate biodegradable fibrous scaffolds by combining the properties of hydrophobic PCL with those of hydrophilic PVA and evaluate their properties in comparison with pristine PCL scaffolds. Therefore, single-layered PCL scaffolds, sequential tri-layered (PVA/PCL/PVA), and core-shell (PVA as shell and PCL as core) composite scaffolds were developed utilizing the electrospinning technique. The material structural and biomechanical properties of the electrospun scaffolds, before and after their hydrolytic degradation over a seven-month period following storage in phosphate-buffered saline (PBS) at 37 °C, were comprehensively compared. In addition, human embryonic kidney cells (HEK-293) were cultured on the scaffolds to investigate potential cell attachment, infiltration, and proliferation. The results demonstrated the long-term efficacy of core-shell biodegradable fibrous scaffolds in comparison to single-layers PCL and tri-layers PVA/PCL/PVA, not only due to its superior morphological characteristics and mechanical properties, but also due to its ability to promote homogeneous cell distribution and proliferation, without any external chemical or physical stimuli.
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Affiliation(s)
- Athina Mitropoulou
- Department of Mechanical Engineering and Aeronautics, Laboratory of Biomechanics and Biomedical Engineering, University of Patras, Patras, GR, Greece.
| | - Dionysios N Markatos
- Department of Mechanical Engineering and Aeronautics, Laboratory of Technology and Strength of Materials, University of Patras, Patras, GR, Greece
| | - Andreas Dimopoulos
- Prometheus Division of Skeletal Tissue Engineering, KU Leuven, Leuven, Belgium
- Skeletal Biology and Engineering Research Center, Department of Development and Regeneration, KU Leuven, Leuven, Belgium
| | - Antonia Marazioti
- Department of Physiotherapy, Laboratory of Basic Sciences, University of Peloponnese, Sparta, GR, Greece
| | | | - Dimosthenis Mavrilas
- Department of Mechanical Engineering and Aeronautics, Laboratory of Biomechanics and Biomedical Engineering, University of Patras, Patras, GR, Greece
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4
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Aqel S, Al-Thani N, Haider MZ, Abdelhady S, Al Thani AA, Kobeissy F, Shaito AA. Biomaterials in Traumatic Brain Injury: Perspectives and Challenges. Biology (Basel) 2023; 13:21. [PMID: 38248452 PMCID: PMC10813103 DOI: 10.3390/biology13010021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/16/2023] [Accepted: 10/23/2023] [Indexed: 01/23/2024]
Abstract
Traumatic brain injury (TBI) is a leading cause of mortality and long-term impairment globally. TBI has a dynamic pathology, encompassing a variety of metabolic and molecular events that occur in two phases: primary and secondary. A forceful external blow to the brain initiates the primary phase, followed by a secondary phase that involves the release of calcium ions (Ca2+) and the initiation of a cascade of inflammatory processes, including mitochondrial dysfunction, a rise in oxidative stress, activation of glial cells, and damage to the blood-brain barrier (BBB), resulting in paracellular leakage. Currently, there are no FDA-approved drugs for TBI, but existing approaches rely on delivering micro- and macromolecular treatments, which are constrained by the BBB, poor retention, off-target toxicity, and the complex pathology of TBI. Therefore, there is a demand for innovative and alternative therapeutics with effective delivery tactics for the diagnosis and treatment of TBI. Tissue engineering, which includes the use of biomaterials, is one such alternative approach. Biomaterials, such as hydrogels, including self-assembling peptides and electrospun nanofibers, can be used alone or in combination with neuronal stem cells to induce neurite outgrowth, the differentiation of human neural stem cells, and nerve gap bridging in TBI. This review examines the inclusion of biomaterials as potential treatments for TBI, including their types, synthesis, and mechanisms of action. This review also discusses the challenges faced by the use of biomaterials in TBI, including the development of biodegradable, biocompatible, and mechanically flexible biomaterials and, if combined with stem cells, the survival rate of the transplanted stem cells. A better understanding of the mechanisms and drawbacks of these novel therapeutic approaches will help to guide the design of future TBI therapies.
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Affiliation(s)
- Sarah Aqel
- Medical Research Center, Hamad Medical Corporation, Doha P.O. Box 3050, Qatar
| | - Najlaa Al-Thani
- Research and Development Department, Barzan Holdings, Doha P.O. Box 7178, Qatar
| | - Mohammad Z. Haider
- Department of Basic Medical Sciences, College of Medicine, QU Health, Qatar University, Doha P.O. Box 2713, Qatar;
| | - Samar Abdelhady
- Faculty of Medicine, Alexandria University, Alexandria 21544, Egypt;
| | - Asmaa A. Al Thani
- Biomedical Research Center and Department of Biomedical Sciences, College of Health Science, QU Health, Qatar University, Doha P.O. Box 2713, Qatar;
| | - Firas Kobeissy
- Department of Neurobiology, Center for Neurotrauma, Multiomics & Biomarkers (CNMB), Morehouse School of Medicine, 720 Westview Dr. SW, Atlanta, GA 30310, USA
| | - Abdullah A. Shaito
- Biomedical Research Center, Department of Biomedical Sciences at College of Health Sciences, College of Medicine, Qatar University, Doha P.O. Box 2713, Qatar
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5
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Chen X, Yang L, Wu Y, Wang L, Li H. Advances in the Application of Photothermal Composite Scaffolds for Osteosarcoma Ablation and Bone Regeneration. ACS Omega 2023; 8:46362-46375. [PMID: 38107965 PMCID: PMC10720008 DOI: 10.1021/acsomega.3c06944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 10/24/2023] [Accepted: 11/14/2023] [Indexed: 12/19/2023]
Abstract
Photothermal therapy is a promising approach to cancer treatment. The energy generated by the photothermal effect can effectively inhibit the growth of cancer cells without harming normal tissues, while the right amount of heat can also promote cell proliferation and accelerate tissue regeneration. Various nanomaterials have recently been used as photothermal agents (PTAs). The photothermal composite scaffolds can be obtained by introducing PTAs into bone tissue engineering (BTE) scaffolds, which produces a photothermal effect that can be used to ablate bone cancer with subsequent further use of the scaffold as a support to repair the bone defects created by ablation of osteosarcoma. Osteosarcoma is the most common among primary bone malignancies. However, a review of the efficacy of different types of photothermal composite scaffolds in osteosarcoma is lacking. This article first introduces the common PTAs, BTE materials, and preparation methods and then systematically summarizes the development of photothermal composite scaffolds. It would provide a useful reference for the combination of tumor therapy and tissue engineering in bone tumor-related diseases and complex diseases. It will also be valuable for advancing the clinical applications of photothermal composite scaffolds.
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Affiliation(s)
- Xiaohong Chen
- Department
of Pediatric Internal Medicine, Haining
Central Hospital, Jiaxing 314400, China
| | - Liqun Yang
- Department
of Nursing, Tongxiang Traditional Chinese
Medicine Hospital, Jiaxing 314500, China
| | - Yanfang Wu
- Department
of Hematology, The First People’s
Hospital of Fuyang Hangzhou, Hangzhou 311400, China
| | - Lina Wang
- Department
of Internal Medicine, The Second People’s
Hospital of Luqiao Taizhou, Taizhou 318058, China
| | - Huafeng Li
- Department
of General Surgery, Haining Central Hospital, Jiaxing 314400, China
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6
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Zulkifli MZA, Nordin D, Shaari N, Kamarudin SK. Overview of Electrospinning for Tissue Engineering Applications. Polymers (Basel) 2023; 15:polym15112418. [PMID: 37299217 DOI: 10.3390/polym15112418] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Revised: 04/24/2023] [Accepted: 05/15/2023] [Indexed: 06/12/2023] Open
Abstract
Tissue engineering (TE) is an emerging field of study that incorporates the principles of biology, medicine, and engineering for designing biological substitutes to maintain, restore, or improve tissue functions with the goal of avoiding organ transplantation. Amongst the various scaffolding techniques, electrospinning is one of the most widely used techniques to synthesise a nanofibrous scaffold. Electrospinning as a potential tissue engineering scaffolding technique has attracted a great deal of interest and has been widely discussed in many studies. The high surface-to-volume ratio of nanofibres, coupled with their ability to fabricate scaffolds that may mimic extracellular matrices, facilitates cell migration, proliferation, adhesion, and differentiation. These are all very desirable properties for TE applications. However, despite its widespread use and distinct advantages, electrospun scaffolds suffer from two major practical limitations: poor cell penetration and poor load-bearing applications. Furthermore, electrospun scaffolds have low mechanical strength. Several solutions have been offered by various research groups to overcome these limitations. This review provides an overview of the electrospinning techniques used to synthesise nanofibres for TE applications. In addition, we describe current research on nanofibre fabrication and characterisation, including the main limitations of electrospinning and some possible solutions to overcome these limitations.
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Affiliation(s)
- Muhammad Zikri Aiman Zulkifli
- Department of Chemical & Process Engineering, Faculty of Engineering & Build Environment, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia
| | - Darman Nordin
- Department of Chemical & Process Engineering, Faculty of Engineering & Build Environment, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia
| | - Norazuwana Shaari
- Full Cell Institute, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia
| | - Siti Kartom Kamarudin
- Full Cell Institute, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia
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7
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T A, Prabhu A, Baliga V, Bhat S, Thenkondar ST, Nayak Y, Nayak UY. Transforming Wound Management: Nanomaterials and Their Clinical Impact. Pharmaceutics 2023; 15:pharmaceutics15051560. [PMID: 37242802 DOI: 10.3390/pharmaceutics15051560] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 05/09/2023] [Accepted: 05/17/2023] [Indexed: 05/28/2023] Open
Abstract
Wound healing is a complex process that can be further complicated in chronic wounds, leading to prolonged healing times, high healthcare costs, and potential patient morbidity. Nanotechnology has shown great promise in developing advanced wound dressings that promote wound healing and prevent infection. The review article presents a comprehensive search strategy that was applied to four databases, namely Scopus, Web of Science, PubMed, and Google Scholar, using specific keywords and inclusion/exclusion criteria to select a representative sample of 164 research articles published between 2001 and 2023. This review article provides an updated overview of the different types of nanomaterials used in wound dressings, including nanofibers, nanocomposites, silver-based nanoparticles, lipid nanoparticles, and polymeric nanoparticles. Several recent studies have shown the potential benefits of using nanomaterials in wound care, including the use of hydrogel/nano silver-based dressings in treating diabetic foot wounds, the use of copper oxide-infused dressings in difficult-to-treat wounds, and the use of chitosan nanofiber mats in burn dressings. Overall, developing nanomaterials in wound care has complemented nanotechnology in drug delivery systems, providing biocompatible and biodegradable nanomaterials that enhance wound healing and provide sustained drug release. Wound dressings are an effective and convenient method of wound care that can prevent wound contamination, support the injured area, control hemorrhaging, and reduce pain and inflammation. This review article provides valuable insights into the potential role of individual nanoformulations used in wound dressings in promoting wound healing and preventing infections, and serves as an excellent resource for clinicians, researchers, and patients seeking improved healing outcomes.
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Affiliation(s)
- Ashwini T
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - Ashlesh Prabhu
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - Vishal Baliga
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - Shreesha Bhat
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - Siddarth T Thenkondar
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - Yogendra Nayak
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - Usha Y Nayak
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
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Casanova EA, Rodriguez-Palomo A, Stähli L, Arnke K, Gröninger O, Generali M, Neldner Y, Tiziani S, Dominguez AP, Guizar-Sicairos M, Gao Z, Appel C, Nielsen LC, Georgiadis M, Weber FE, Stark W, Pape HC, Cinelli P, Liebi M. SAXS imaging reveals optimized osseointegration properties of bioengineered oriented 3D-PLGA/aCaP scaffolds in a critical size bone defect model. Biomaterials 2023; 294:121989. [PMID: 36628888 DOI: 10.1016/j.biomaterials.2022.121989] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 12/01/2022] [Accepted: 12/24/2022] [Indexed: 01/03/2023]
Abstract
Healing large bone defects remains challenging in orthopedic surgery and is often associated with poor outcomes and complications. A major issue with bioengineered constructs is achieving a continuous interface between host bone and graft to enhance biological processes and mechanical stability. In this study, we have developed a new bioengineering strategy to produce oriented biocompatible 3D PLGA/aCaP nanocomposites with enhanced osseointegration. Decellularized scaffolds -containing only extracellular matrix- or scaffolds seeded with adipose-derived mesenchymal stromal cells were tested in a mouse model for critical size bone defects. In parallel to micro-CT analysis, SAXS tensor tomography and 2D scanning SAXS were employed to determine the 3D arrangement and nanostructure within the critical-sized bone. Both newly developed scaffold types, seeded with cells or decellularized, showed high osseointegration, higher bone quality, increased alignment of collagen fibers and optimal alignment and size of hydroxyapatite minerals.
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Affiliation(s)
- Elisa A Casanova
- Department of Trauma Surgery, University of Zurich, University Hospital Zurich, Zurich, Switzerland
| | | | - Lisa Stähli
- Department of Trauma Surgery, University of Zurich, University Hospital Zurich, Zurich, Switzerland
| | - Kevin Arnke
- Department of Trauma Surgery, University of Zurich, University Hospital Zurich, Zurich, Switzerland
| | - Olivier Gröninger
- Institute for Chemical and Bioengineering, ETH Zurich, Zurich, Switzerland
| | - Melanie Generali
- Institute for Regenerative Medicine (IREM), Center for Therapy Development and Good Manufacturing Practice, University of Zurich, Zurich, Switzerland
| | - Yvonne Neldner
- Department of Trauma Surgery, University of Zurich, University Hospital Zurich, Zurich, Switzerland
| | - Simon Tiziani
- Department of Trauma Surgery, University of Zurich, University Hospital Zurich, Zurich, Switzerland
| | - Ana Perez Dominguez
- Oral Biotechnology and Bioengineering, Department of Cranio-Maxillofacial and Oral Surgery, Center for Dental Medicine, University of Zurich, Zurich, Switzerland
| | | | - Zirui Gao
- Swiss Light Source, Paul Scherrer Institute, Villigen, Switzerland
| | - Christian Appel
- Swiss Light Source, Paul Scherrer Institute, Villigen, Switzerland
| | - Leonard C Nielsen
- Department of Physics, Chalmers University of Technology, Gothenburg, Sweden
| | - Marios Georgiadis
- Department of Radiology, Stanford School of Medicine, Stanford, CA, USA
| | - Franz E Weber
- Oral Biotechnology and Bioengineering, Department of Cranio-Maxillofacial and Oral Surgery, Center for Dental Medicine, University of Zurich, Zurich, Switzerland
| | - Wendelin Stark
- Institute for Chemical and Bioengineering, ETH Zurich, Zurich, Switzerland
| | - Hans-Christoph Pape
- Department of Trauma Surgery, University of Zurich, University Hospital Zurich, Zurich, Switzerland
| | - Paolo Cinelli
- Department of Trauma Surgery, University of Zurich, University Hospital Zurich, Zurich, Switzerland; Center for Applied Biotechnology and Molecular Medicine (CABMM), University of Zurich, Zurich, Switzerland.
| | - Marianne Liebi
- Department of Physics, Chalmers University of Technology, Gothenburg, Sweden; Centre for X-ray Analytics, Swiss Federal Laboratories for Materials Science and Technology (EMPA), St. Gallen, Switzerland
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Ke H, Yang H, Zhao Y, Li T, Xin D, Gai C, Jiang Z, Wang Z. 3D Gelatin Microsphere Scaffolds Promote Functional Recovery after Spinal Cord Hemisection in Rats. Adv Sci (Weinh) 2023; 10:e2204528. [PMID: 36453595 PMCID: PMC9875663 DOI: 10.1002/advs.202204528] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 10/22/2022] [Indexed: 05/24/2023]
Abstract
Spinal cord injury (SCI) damages signal connections and conductions, with the result that neuronal circuits are disrupted leading to neural dysfunctions. Such injuries represent a serious and relatively common central nervous system condition and current treatments have limited success in the reconstruction of nerve connections in injured areas, especially where sizeable gaps are present. Biomaterial scaffolds have become an effective alternative to nerve transplantation in filling these gaps and provide the foundation for simulating the 3D structure of solid organs. However, there remain some limitations with the application of 3D bioprinting for preparation of biomaterial scaffolds. Here, the approach in constructing and testing mini-tissue building blocks and self-assembly, solid 3D gelatin microsphere (GM) scaffolds with multiple voids as based on the convenient preparation of gelatin microspheres by microfluidic devices is described. These 3D GM scaffolds demonstrate suitable biocompatibility, biodegradation, porosity, low preparation costs, and relative ease of production. Moreover, 3D GM scaffolds can effectively bridge injury gaps, establish nerve connections and signal transductions, mitigate inflammatory microenvironments, and reduce glial scar formation. Accordingly, these 3D GM scaffolds can serve as a novel and effective bridging method to promote nerve regeneration and reconstruction and thus recovery of nerve function after SCI.
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Affiliation(s)
- Hongfei Ke
- Department of PhysiologySchool of Basic Medical SciencesCheeloo College of MedicineShandong University44 Wenhua Xi RoadJinanShandong250012P. R. China
| | - Hongru Yang
- State Key Laboratory of Crystal MaterialsShandong University27 Shanda NanluJinanShandong250100P. R. China
| | - Yijing Zhao
- Department of PhysiologySchool of Basic Medical SciencesCheeloo College of MedicineShandong University44 Wenhua Xi RoadJinanShandong250012P. R. China
| | - Tingting Li
- Department of PhysiologySchool of Basic Medical SciencesCheeloo College of MedicineShandong University44 Wenhua Xi RoadJinanShandong250012P. R. China
| | - Danqing Xin
- Department of PhysiologySchool of Basic Medical SciencesCheeloo College of MedicineShandong University44 Wenhua Xi RoadJinanShandong250012P. R. China
| | - Chengcheng Gai
- Department of PhysiologySchool of Basic Medical SciencesCheeloo College of MedicineShandong University44 Wenhua Xi RoadJinanShandong250012P. R. China
| | - Zige Jiang
- Department of PhysiologySchool of Basic Medical SciencesCheeloo College of MedicineShandong University44 Wenhua Xi RoadJinanShandong250012P. R. China
| | - Zhen Wang
- Department of PhysiologySchool of Basic Medical SciencesCheeloo College of MedicineShandong University44 Wenhua Xi RoadJinanShandong250012P. R. China
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10
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Sarviya N, Basu SM, Induvahi V, Giri J. Laponite-Gelatin Nanofibrous Microsphere Promoting Human Dental Follicle Stem Cells Attachment and Osteogenic Differentiation for Noninvasive Stem Cell Transplantation. Macromol Biosci 2023; 23:e2200347. [PMID: 36353916 DOI: 10.1002/mabi.202200347] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 10/28/2022] [Indexed: 11/11/2022]
Abstract
Nanofibrous microspheres (NFM) are emerging as prominent next-generation biomimetic injectable scaffold system for stem cell delivery and different tissue regeneration where nanofibrous topography facilitates ECM-like stem cells niches. Addition of osteogenic bioactive nanosilicate platelets within NFM can provide osteoconductive cues to facilitate matrix mediated osteogenic differentiation of stem cells and enhance the efficiency of bone tissue regeneration. In this study, gelatin nanofibrous microspheres are prepared containing fluoride-doped laponite XL21 (LP) using the emulsion mediated thermal induce phase separation (TIPS) technique. Systematic studies are performed to understand the effect of physicochemical properties of biomimicking NFM alone and with different concentrations of LP on human dental follicle stem cells (hDFSCs), their cellular attachment, proliferation, and osteogenic differentiation. The study highlights the effect of LP nanosilicate with biomimicking nanofibrous injectable scaffold system aiding in enhancing stem cell differentiation under normal physiological conditions compared to NFM without LP. The laponite-NFM shows suitability as excellent injectable biomaterials system for stem cell attachment, proliferation and osteogenic differentiation for stem cell transplantation and bone tissue regeneration.
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Affiliation(s)
- Nandini Sarviya
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Telangana, 502285, India.,Department of Chemistry and Biotechnology, Swinburne Institute of Technology, Hawthorn, Victoria, Vic-3122, Australia
| | - Suparna Mercy Basu
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Telangana, 502285, India
| | - Veernala Induvahi
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Telangana, 502285, India
| | - Jyotsnendu Giri
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Telangana, 502285, India
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11
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Pilavci E, Ayran M, Ulubay D, Kaya E, Tinaz G, Bingol Ozakpinar O, Sancakli A, Gunduz O. Fabrication and characterization of electrospun GelMA/PCL/CS nanofiber composites for wound dressing applications. J BIOACT COMPAT POL 2022. [DOI: 10.1177/08839115221138777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In the present study, the effect of different ratios of GelMA concentration has been exhibited for wound dressing implementation by the electrospinning method using a new polymer combination of Gelatin methacrylate (GelMA)/Polycaprolactone (PCL)/Chitosan (CS). The nanofiber composites were fabricated due to their biocompatible, biodegradable, improved mechanical strength, low degradation rate, and hydrophilic nature to develop cell-mimicking, cell adhesion, proliferation, and differentiation. Different concentrations of GelMA were added to the PCL/CS solution as 5, 10, and 20 wt%, respectively, in the formic acid/acetic acid (7:3) solution. A photoinitiator was added to the solution for photo-crosslinking of GelMA. The influence of different solution concentrations (5, 10, and 20 wt%) on the structure’s nanofiber production and fiber morphology was examined. SEM micrographs revealed that varied GelMA concentrations resulted in suitable and stable nanofiber composites. The average diameter of nanofiber composites grows as the GelMA concentration rises. FTIR, DSC, tensile test, degradation, and swelling test were evaluated. The results demonstrated that high mechanical strength, hydrophilic properties, and a slow degradation rate were observed with the presence and increment of GelMA concentration within the nanofiber composites. The antibacterial potential of GelMA/PCL/CS nanofiber composites was evaluated against P. aeruginosa and S. aureus using a disc diffusion assay. In vitro cell culture research was conducted by seeding NIH 3T3 fibroblast cells on nanofiber composites, proving these cells’ high cell proliferation rate, viability, and adhesion. 10 wt% GelMA-based nanofiber composites were found to have great potential for wound dressing applications.
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Affiliation(s)
- Esra Pilavci
- Department of Metallurgy and Materials Engineering, Faculty of Technology, Marmara University, Istanbul, Turkey
| | - Musa Ayran
- Department of Metallurgy and Materials Engineering, Faculty of Technology, Marmara University, Istanbul, Turkey
| | - Dilay Ulubay
- Department of Metallurgy and Materials Engineering, Faculty of Technology, Marmara University, Istanbul, Turkey
| | - Elif Kaya
- Department of Basic Pharmaceutical Sciences, Faculty of Pharmacy, Marmara University, Istanbul, Turkey
| | - Gulgun Tinaz
- Department of Basic Pharmaceutical Sciences, Faculty of Pharmacy, Marmara University, Istanbul, Turkey
| | - Ozlem Bingol Ozakpinar
- Department of Basic Pharmaceutical Sciences, Faculty of Pharmacy, Marmara University, Istanbul, Turkey
| | - Aykut Sancakli
- Kazlicesme R&D Center and Test Laboratories, Tuzla, Istanbul, Turkey
- Department of Leather Engineering, Faculty of Engineering, Ege University, Izmir, Turkey
| | - Oguzhan Gunduz
- Department of Metallurgy and Materials Engineering, Faculty of Technology, Marmara University, Istanbul, Turkey
- Center for Nanotechnology & Biomaterials Application and Research (NBUAM), Marmara University, Istanbul, Turkey
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Jeong JO, Jeong SI, Lim YM, Park JS. Effective BMP-2 Release and Mineralization on a Graphene Oxide/Polyvinylpyrrolidone Hydrogel Forming Poly (ε-Caprolactone) Nanofibrous Scaffolds. Materials (Basel) 2022; 15:8642. [PMID: 36500136 PMCID: PMC9740667 DOI: 10.3390/ma15238642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 11/28/2022] [Accepted: 11/28/2022] [Indexed: 06/17/2023]
Abstract
PCL nanofibrous scaffolds are widely used as bone scaffolds, and they can increase the efficiency of bone regeneration by loading drugs and/or growth factors onto them. However, to obtain a more effective bone regeneration effect, it is necessary to increase drug loading and release efficiency. In this study, conductive hydrogel forming nanofibrous scaffolds were prepared to increase drug efficiency. GO has an excellent conductivity and biocompatibility, making it an efficient conductive polymer for bone differentiation. Electrospun PCL was immersed in a mixed solution of GO and PVP and then crosslinked using gamma-ray irradiation. It was confirmed that GO/PVP-PCL was successfully prepared through its characterization (morphology, thermal, chemical, electrical, and biological properties). In addition, drug-release efficiency was confirmed by electrical stimulation after loading the sample with BMP-2, a bone-regeneration growth factor. Compared to PCL, it was confirmed that GO/PVP-PCL has an approximately 20% improved drug-release efficiency and an excellent mineralization of the scaffolds using SBF. After culturing MG63 cells on GO/PVP-PCL, a high effect on osteodifferentiation was confirmed by ALP activity. Therefore, GO/PVP-PCL prepared by a gamma-ray-induced crosslinking reaction is expected to be used as biomaterial for bone-tissue engineering.
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Affiliation(s)
- Jin-Oh Jeong
- Wake Forest Institute for Regenerative Medicine (WFIRM), Wake Forest School of Medicine, Winston-Salem, NC 27157, USA
| | - Sung-In Jeong
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute (KAERI), Jeongeup-si 56212, Republic of Korea
| | - Youn-Mook Lim
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute (KAERI), Jeongeup-si 56212, Republic of Korea
| | - Jong-Seok Park
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute (KAERI), Jeongeup-si 56212, Republic of Korea
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13
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Serrano-Aroca Á, Cano-Vicent A, Sabater i Serra R, El-Tanani M, Aljabali A, Tambuwala MM, Mishra YK. Scaffolds in the microbial resistant era: Fabrication, materials, properties and tissue engineering applications. Mater Today Bio 2022; 16:100412. [PMID: 36097597 PMCID: PMC9463390 DOI: 10.1016/j.mtbio.2022.100412] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 08/23/2022] [Accepted: 08/24/2022] [Indexed: 11/08/2022] Open
Abstract
Due to microbial infections dramatically affect cell survival and increase the risk of implant failure, scaffolds produced with antimicrobial materials are now much more likely to be successful. Multidrug-resistant infections without suitable prevention strategies are increasing at an alarming rate. The ability of cells to organize, develop, differentiate, produce a functioning extracellular matrix (ECM) and create new functional tissue can all be controlled by careful control of the extracellular microenvironment. This review covers the present state of advanced strategies to develop scaffolds with antimicrobial properties for bone, oral tissue, skin, muscle, nerve, trachea, cardiac and other tissue engineering applications. The review focuses on the development of antimicrobial scaffolds against bacteria and fungi using a wide range of materials, including polymers, biopolymers, glass, ceramics and antimicrobials agents such as antibiotics, antiseptics, antimicrobial polymers, peptides, metals, carbon nanomaterials, combinatorial strategies, and includes discussions on the antimicrobial mechanisms involved in these antimicrobial approaches. The toxicological aspects of these advanced scaffolds are also analyzed to ensure future technological transfer to clinics. The main antimicrobial methods of characterizing scaffolds’ antimicrobial and antibiofilm properties are described. The production methods of these porous supports, such as electrospinning, phase separation, gas foaming, the porogen method, polymerization in solution, fiber mesh coating, self-assembly, membrane lamination, freeze drying, 3D printing and bioprinting, among others, are also included in this article. These important advances in antimicrobial materials-based scaffolds for regenerative medicine offer many new promising avenues to the material design and tissue-engineering communities. Antibacterial, antifungal and antibiofilm scaffolds. Antimicrobial scaffold fabrication techniques. Antimicrobial biomaterials for tissue engineering applications. Antimicrobial characterization methods of scaffolds. Bone, oral tissue, skin, muscle, nerve, trachea, cardiac, among other applications.
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14
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Hosseini H, DeBenedetto C, Eleswarapu SV, Ng G, Sturm RM. De novo testicular tissue generation from non-testicular cell lines, biologic and synthetic scaffolds: Current findings and future translational applications. Front Cell Dev Biol 2022; 10:954196. [PMID: 36407104 PMCID: PMC9667054 DOI: 10.3389/fcell.2022.954196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 09/26/2022] [Indexed: 11/29/2022] Open
Abstract
In recent decades, reproductive science has revolutionized the options for biological parenthood for the 20-50% of infertility cases affected by male factors. However, current solutions exclude those who are infertile due to absent testicular tissue. This includes anorchic 46, XY individuals due to trauma or congenital factors and transgender men with a 46, XX genotype. There is a clinical need for methods to restore testicular function independent of pre-existing testicular tissue. This mini-review analyzes studies that have applied non-testicular cell lines to generate germline and non-germline testicular parenchymal components. While only 46, XY cell lines have been evaluated in this context to date, the potential for future application of cell lines from 46, XX individuals is also included. Additionally, the role of varied culture methods, media supplementation, and biologic and synthetic scaffolds to further support testicular parenchyma generation are critiqued. De novo testicular tissue generation in this manner will require a focus on both cellular and environmental aspects of tissue engineering. Put together, these studies highlight the future potential for expanded clinical, reproductive, and endocrine management options for individuals who are currently excluded from aspects of biologic reproduction most consistent with their gender identity and reproductive preferences.
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Affiliation(s)
- Helia Hosseini
- Department of Bioengineering, Los Angeles, CA, United States
| | | | | | - Gladys Ng
- Department of Urology, Los Angeles, CA, United States
| | - Renea M. Sturm
- Department of Urology, Los Angeles, CA, United States,UCLA Mattel Children's Hospital, Los Angeles, CA, United States,*Correspondence: Renea M. Sturm,
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15
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Anjum S, Rahman F, Pandey P, Arya DK, Alam M, Rajinikanth PS, Ao Q. Electrospun Biomimetic Nanofibrous Scaffolds: A Promising Prospect for Bone Tissue Engineering and Regenerative Medicine. Int J Mol Sci 2022; 23:ijms23169206. [PMID: 36012473 PMCID: PMC9408902 DOI: 10.3390/ijms23169206] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 08/11/2022] [Accepted: 08/13/2022] [Indexed: 11/16/2022] Open
Abstract
Skeletal-related disorders such as arthritis, bone cancer, osteosarcoma, and osteoarthritis are among the most common reasons for mortality in humans at present. Nanostructured scaffolds have been discovered to be more efficient for bone regeneration than macro/micro-sized scaffolds because they sufficiently permit cell adhesion, proliferation, and chemical transformation. Nanofibrous scaffolds mimicking artificial extracellular matrices provide a natural environment for tissue regeneration owing to their large surface area, high porosity, and appreciable drug loading capacity. Here, we review recent progress and possible future prospective electrospun nanofibrous scaffolds for bone tissue engineering. Electrospun nanofibrous scaffolds have demonstrated promising potential in bone tissue regeneration using a variety of nanomaterials. This review focused on the crucial role of electrospun nanofibrous scaffolds in biological applications, including drug/growth factor delivery to bone tissue regeneration. Natural and synthetic polymeric nanofibrous scaffolds are extensively inspected to regenerate bone tissue. We focused mainly on the significant impact of nanofibrous composite scaffolds on cell adhesion and function, and different composites of organic/inorganic nanoparticles with nanofiber scaffolds. This analysis provides an overview of nanofibrous scaffold-based bone regeneration strategies; however, the same concepts can be applied to other organ and tissue regeneration tactics.
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Affiliation(s)
- Shabnam Anjum
- Department of Tissue Engineering, School of Intelligent Medicine, China Medical University, Shenyang 110122, China
| | - Farheen Rahman
- Department of Applied Chemistry, Zakir Husain College of Engineering & Technology, Aligarh Muslim University, Aligarh 202002, India
| | - Prashant Pandey
- Department of Pharmaceutical Sciences, Babasaheb Bhimrao Ambedkar University, Vidya Vihar, Raebareli Road, Lucknow 226025, India
| | - Dilip Kumar Arya
- Department of Pharmaceutical Sciences, Babasaheb Bhimrao Ambedkar University, Vidya Vihar, Raebareli Road, Lucknow 226025, India
| | - Mahmood Alam
- Department of Clinical Medicine, China Medical University, Shenyang 110122, China
| | - Paruvathanahalli Siddalingam Rajinikanth
- Department of Pharmaceutical Sciences, Babasaheb Bhimrao Ambedkar University, Vidya Vihar, Raebareli Road, Lucknow 226025, India
- Correspondence: (P.S.R.); (Q.A.)
| | - Qiang Ao
- Department of Tissue Engineering, School of Intelligent Medicine, China Medical University, Shenyang 110122, China
- NMPA Key Laboratory for Quality Research and Control of Tissue Regenerative Biomaterial & Institute of Regulatory Science for Medical Device & National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
- Correspondence: (P.S.R.); (Q.A.)
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16
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Rajamohan R, Parthipan P, Nithyananthan S, Lee YR, Subramania A. Polymer-based electrospun nanofibrous mats for the cytotoxic assay on liver cancer cell line with the Cardiospermum halicacabum leaf. Appl Nanosci 2022. [DOI: 10.1007/s13204-022-02569-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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17
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Chimerad M, Barazesh A, Zandi M, Zarkesh I, Moghaddam A, Borjian P, Chimehrad R, Asghari A, Akbarnejad Z, Khonakdar HA, Bagher Z. Tissue engineered scaffold fabrication methods for medical applications. INT J POLYM MATER PO 2022. [DOI: 10.1080/00914037.2022.2101112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Mohammadreza Chimerad
- Department of Mechanical & Aerospace Engineering, College of Engineering & Computer Science, University of Central Florida, Orlando, Florida, USA
| | - Alireza Barazesh
- Tissue Engineering and Biological Systems Research Laboratory, School of Mechanical Engineering, Iran University of Science and Technology, Tehran, Iran
| | - Mojgan Zandi
- Department of Polymer Processing, Iran Polymer and Petrochemical Institute, Tehran, Iran
| | - Ibrahim Zarkesh
- Department of Tissue Engineering & Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Armaghan Moghaddam
- Department of Polymer Processing, Iran Polymer and Petrochemical Institute, Tehran, Iran
| | - Pouya Borjian
- Department of Mechanical & Aerospace Engineering, College of Engineering & Computer Science, University of Central Florida, Orlando, Florida, USA
| | - Rojan Chimehrad
- Department of Biological Sciences, Islamic Azad University Tehran Medical Branch, Tehran, Iran
| | - Alimohamad Asghari
- Skull Base Research Center, School of Medicine, The Five Senses Health Institute, Iran University of Medical Sciences, Tehran, Iran
| | - Zeinab Akbarnejad
- ENT and Head and Neck Research Center and Department, School of Medicine, The Five Senses Health Institute, Iran University of Medical Sciences, Tehran, Iran
| | - Hossein Ali Khonakdar
- Department of Polymer Processing, Iran Polymer and Petrochemical Institute, Tehran, Iran
| | - Zohreh Bagher
- Department of Tissue Engineering & Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
- ENT and Head and Neck Research Center and Department, School of Medicine, The Five Senses Health Institute, Iran University of Medical Sciences, Tehran, Iran
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18
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Rajamohan R, Subramania A, Lee YR. Polymer-mediated electrospun nanofibrous mats on supramolecular assembly of nortriptyline in the β-cyclodextrin medium for antibacterial study. J Biomater Sci Polym Ed 2022; 33:1256-1268. [PMID: 35263238 DOI: 10.1080/09205063.2022.2048453] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 02/26/2022] [Accepted: 02/27/2022] [Indexed: 06/14/2023]
Abstract
With the thought and strong hope of uniqueness and challenging characteristic highlights and importance of nanofibrous mats (NFMs) along with cyclodextrins (CDs) that having a significant opportunity, chances and handling a vital role in hostile to bacterial activities. For the most part, CDs are utilized to upgrade the antibacterial activity through the improvement of solubility, stability, and etc., to any molecule which can bring inside the CDs cavity via the formation of inclusion complexes. Polymer-mediated electrospun nanofibrous mats (PAN NFMs) are utilized as a nanocarrier for antibacterial activity in this article, utilizing nortriptyline (NP) as a reference molecule. As a result, NP forms an inclusion complex with β-Cyclodextrin (β-CD). As a result, the PAN NFMs are able to absorb it, thereby consolidating the complex NP on the nanofibrous surface. Additionally, the soaking of PAN NFMs in NP solution without β-CD was performed for comparison. To characterize the nanofibrous mats of NP/PAN and NP:β-CD-ICs/PAN NFMs, UV absorption, FTIR, Raman, XRD, and SEM techniques were used. The antibacterial activity of NP and NP:β-CD-ICs have been tried against positive control antibiotics by the disc diffusion method. Thus, the action has been improved for NP:β-CD-ICs/PAN NFMs over NP/PAN NFMs because of the solubility upgraded for the NP by the complexation of β-CD.
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Affiliation(s)
- Rajaram Rajamohan
- Electro-Materials Research Laboratory, Centre for Nanoscience and Technology, Pondicherry University, Puducherry, India
- School of Chemical Engineering, Yeungnam University, Gyeongson, Republic of Korea
| | - Angaiah Subramania
- Electro-Materials Research Laboratory, Centre for Nanoscience and Technology, Pondicherry University, Puducherry, India
| | - Yong Rok Lee
- School of Chemical Engineering, Yeungnam University, Gyeongson, Republic of Korea
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19
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McNaughton R, Huo Y, Li G, Ioschpe ADV, Yan L, Man HY, Zhang X. Regulatory Effects of Gradient Microtopographies on Synapse Formation and Neurite Growth in Hippocampal Neurons. J Micromech Microeng 2022; 32:075005. [PMID: 35814808 PMCID: PMC9262107 DOI: 10.1088/1361-6439/ac73d7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Among approaches aiming toward functional nervous system restoration, those implementing microfabrication techniques allow the manufacture of platforms with distinct geometry where neurons can develop and be guided to form patterned connections in vitro. The interplay between neuronal development and the microenvironment, shaped by the physical limitations, remains largely unknown. Therefore, it is crucial to have an efficient way to quantify neuronal morphological changes induced by physical or contact guidance of the microenvironment. In this study, we first devise and assess a method to prepare anisotropic, gradient poly(dimethylsiloxane) micro-ridge/groove arrays featuring variable local pattern width. We then demonstrate the ability of this single substrate to simultaneously profile the morphologcial and synaptic connectivity changes of primary cultured hippocampal neurons reacting to variable physical conditons, throughout neurodevelopment, in vitro. The gradient microtopography enhanced adhesion within microgrooves, increasing soma density with decreasing pattern width. Decreasing pattern width also reduced dendritic arborization and increased preferential axon growth. Finally, decreasing pattern geometry inhibited presynaptic puncta architecture. Collectively, a method to examine structural development and connectivity in response to physical stimuli is established, and potentially provides insight into microfabricated geometries which promote neural regeneration and repair.
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Affiliation(s)
- Ryan McNaughton
- Department of Mechanical Engineering, Boston University, Boston, MA, USA
| | - Yuda Huo
- Department of Biology, Boston University, Boston, MA, USA
| | - Guicai Li
- Department of Mechanical Engineering, Boston University, Boston, MA, USA
| | | | - Lei Yan
- Department of Mechanical Engineering, Boston University, Boston, MA, USA
| | - Heng-Ye Man
- Department of Biology, Boston University, Boston, MA, USA
- Center for Systems Neuroscience, Boston University, Boston, MA, USA
| | - Xin Zhang
- Department of Mechanical Engineering, Boston University, Boston, MA, USA
- Photonics Center, Boston University, Boston, MA, USA
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20
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Alipour H, Alizadeh A, Azarpira N, Saudi A, Alavi O, Tanideh N, Dehghani F. Incorporating fingolimod through poly(lactic‐co‐glycolic acid) nanoparticles in electrospun polyurethane/polycaprolactone/gelatin scaffold: An in vitro study for nerve tissue engineering. POLYM ADVAN TECHNOL 2022. [DOI: 10.1002/pat.5715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Hamed Alipour
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Medical Sciences and Technologies Shiraz University of Medical Sciences Shiraz Iran
| | - Aliakbar Alizadeh
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Medical Sciences and Technologies Shiraz University of Medical Sciences Shiraz Iran
| | - Negar Azarpira
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Medical Sciences and Technologies Shiraz University of Medical Sciences Shiraz Iran
- Transplant Research Center Shiraz University of Medical Sciences Shiraz Iran
| | - Ahmad Saudi
- Department of Biomaterials, Tissue Engineering and Nanotechnology, School of Advanced Technologies in Medicine Isfahan University of Medical Sciences Isfahan Iran
| | - Omid Alavi
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Medical Sciences and Technologies Shiraz University of Medical Sciences Shiraz Iran
| | - Nader Tanideh
- Stem Cells Technology Research Center Shiraz University of Medical Sciences Shiraz Iran
- Department of Pharmacology, School of Medicine Shiraz University of Medical Sciences Shiraz Iran
| | - Farzaneh Dehghani
- Department of Anatomical Sciences, School of Medicine Shiraz University of Medical Sciences Shiraz Iran
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21
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Aghayan S, Seyedjafari E, Hamidi S, Department of Periodontology, Faculty of Dentistry, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran, Department of Biotechnology, College of Sciences, University of Tehran, Tehran, Iran, Dentist, Private Practice, Tehran, Iran. Effects of Nanofiber Scaffolds Coated with Nanoparticulate and Microparticulate Freeze Dried Bone Allograft on the Morphology, Adhesion, and Proliferation of Human Mesenchymal Stem Cells. ibj 2022; 26:193-201. [PMID: 35633638 PMCID: PMC9440688 DOI: 10.52547/ibj.26.3.193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Background: Freeze dried bone allograft nanoparticles on a nanofiber membrane may serve as an ideal scaffold for bone regeneration. This study aimed to assess the biological behavior of human MSCs in terms of proliferation and adhesion to nanoparticulate and microparticulate FDBA scaffolds on PLLA nanofiber membrane. Methods: In this experimental study, PLLA nanofiber scaffolds were synthesized by the electrospinning method. The FDBA nanoparticles were synthesized mechanically. The FDBA nanoparticles and microparticles were loaded on the surface of PLLA nanofiber membrane. A total of 64 scaffold samples in four groups of n-FDBA/PLLA, FDBA/PLLA, PLLA and control were placed in 24-well polystyrene tissue culture plates; 16 wells were allocated to each group. Data were analyzed using one-way ANOVA and Bonferroni test. Results: The proliferation rate of MSCs was significantly higher in the nanoparticulate group compared to the microparticulate group at five days (p = 0.034). Assessment of cell morphology at 24 hours revealed spindle-shaped cells with a higher number of appendages in the nanoparticulate group compared to other groups. Conclusion: MSCs on n-FDBA/PLLA scaffold were morphologically more active and flatter with a higher number of cellular appendages, as compared to FDBA/PLLA. It seems that the nanoparticulate scaffold is superior to the microparticulate scaffold in terms of proliferation, attachment, and morphology of MSCs in vitro.
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22
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Komuro N, Nakajima N, Hamada M, Koyama Y. Design and synthesis of amphiphilic alternating peptides with lower critical solution temperature behaviors. Polym J. [DOI: 10.1038/s41428-022-00639-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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23
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Zhong M, Lin J, Yang Y, Liu M, Guo G, Ji D, Zhang R, Zhang J. Bi-layered nanofibrous membrane with osteogenic and antibacterial functions for periodontal tissue regeneration. J Biomater Appl 2022; 36:1588-1598. [PMID: 35168435 DOI: 10.1177/08853282211068596] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Guided tissue regeneration (GTR) membranes have great potential to promote periodontal tissue regeneration and reestablishment. However, the regeneration potential and microbial infection resistance of current GTR membranes still need to be improved. Here, a bi-layered nanofibrous membrane on the basis of poly (lactic-co-glycolic acid) (PLGA)/gelatin with osteogenic and antibacterial functions was fabricated for periodontal tissue regeneration. The antimicrobial layer (AL) of the bi-layered nanofibrous membrane was composed of nanofibrous PLGA/gelatin nanofibers loaded with nano-silver (nAg), while the osteoconductive layer (OL) of the nanofibrous membrane consisted of PLGA/gelatin nanofibers loaded with nano-hydroxyapatite (nHA). The bi-layered nanofibrous membrane was examined by scanning electron microscopy (SEM), energy dispersive spectrometer (EDS), transmission electron microscope (TEM), Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectrometry (XPS) and X-ray diffractometry (XRD). The results showed that nHA and nAg particles were well evenly loaded or embedded in PLGA/gelatin nanofibers. The cell culture experiments suggested that the bi-layered nanofibrous membrane possessed good cytocompatibility and the OL of the bi-layered nanofibrous membrane possessed an enhanced osteogenic capacity for human osteoblast-like cells (MG63), which was verified by the good cell viability and the increased alkaline phosphatase (ALP) activity, respectively. The results of in vitro antimicrobial study displayed that the AL of the bi-layered nanofibrous membrane possessed an effective antibacterial capability. In conclusion, the prepared bi-layered nanofibrous membrane with osteogenic and antibacterial functions may have great potential for periodontal tissue regeneration and reestablishment.[Formula: see text].
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Affiliation(s)
- Meiling Zhong
- 58280East China Jiao Tong University, Nanchang, China
| | - Jixia Lin
- 58280East China Jiao Tong University, Nanchang, China
| | - Yudie Yang
- 58280East China Jiao Tong University, Nanchang, China
| | - Mingzhuo Liu
- 117970First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Guanghua Guo
- 117970First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Dehui Ji
- 58280East China Jiao Tong University, Nanchang, China
| | - Richao Zhang
- 58280East China Jiao Tong University, Nanchang, China
| | - Jiali Zhang
- 58280East China Jiao Tong University, Nanchang, China
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Matei E, Covaliu-Mierla CI, Ţurcanu AA, Râpă M, Predescu AM, Predescu C. Multifunctional Membranes-A Versatile Approach for Emerging Pollutants Removal. Membranes (Basel) 2022; 12:67. [PMID: 35054593 DOI: 10.3390/membranes12010067] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 12/29/2021] [Accepted: 12/31/2021] [Indexed: 02/06/2023]
Abstract
This paper presents a comprehensive literature review surveying the most important polymer materials used for electrospinning processes and applied as membranes for the removal of emerging pollutants. Two types of processes integrate these membrane types: separation processes, where electrospun polymers act as a support for thin film composites (TFC), and adsorption as single or coupled processes (photo-catalysis, advanced oxidation, electrochemical), where a functionalization step is essential for the electrospun polymer to improve its properties. Emerging pollutants (EPs) released in the environment can be efficiently removed from water systems using electrospun membranes. The relevant results regarding removal efficiency, adsorption capacity, and the size and porosity of the membranes and fibers used for different EPs are described in detail.
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Gil-castell O, Ontoria-oviedo I, Badia J, Amaro-prellezo E, Sepúlveda P, Ribes-greus A. Conductive polycaprolactone/gelatin/polyaniline nanofibres as functional scaffolds for cardiac tissue regeneration. REACT FUNCT POLYM 2022; 170:105064. [DOI: 10.1016/j.reactfunctpolym.2021.105064] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Rajamohan R, Sillanpää M, Subramania A. Electrospun polyvinylidene fluoride nanofibrous mats as the carrier for drug delivery system of benzocaine and its complex with β-cyclodextrin. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117411] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Reddy VS, Tian Y, Zhang C, Ye Z, Roy K, Chinnappan A, Ramakrishna S, Liu W, Ghosh R. A Review on Electrospun Nanofibers Based Advanced Applications: From Health Care to Energy Devices. Polymers (Basel) 2021; 13:3746. [PMID: 34771302 PMCID: PMC8587893 DOI: 10.3390/polym13213746] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 10/18/2021] [Accepted: 10/19/2021] [Indexed: 01/29/2023] Open
Abstract
Electrospun nanofibers have been exploited in multidisciplinary fields with numerous applications for decades. Owing to their interconnected ultrafine fibrous structure, high surface-to-volume ratio, tortuosity, permeability, and miniaturization ability along with the benefits of their lightweight, porous nanofibrous structure, they have been extensively utilized in various research fields for decades. Electrospun nanofiber technologies have paved unprecedented advancements with new innovations and discoveries in several fields of application including energy devices and biomedical and environmental appliances. This review article focused on providing a comprehensive overview related to the recent advancements in health care and energy devices while emphasizing on the importance and uniqueness of utilizing nanofibers. A brief description regarding the effect of electrospinning techniques, setup modifications, and parameters optimization on the nanofiber morphology was also provided. The article is concluded with a short discussion on current research challenges and future perspectives.
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Affiliation(s)
- Vundrala Sumedha Reddy
- Centre for Nanotechnology & Sustainability, Department of Mechanical Engineering, National University of Singapore, Singapore 119260, Singapore; (V.S.R.); (Y.T.); (C.Z.); (Z.Y.); (A.C.)
| | - Yilong Tian
- Centre for Nanotechnology & Sustainability, Department of Mechanical Engineering, National University of Singapore, Singapore 119260, Singapore; (V.S.R.); (Y.T.); (C.Z.); (Z.Y.); (A.C.)
- Key Laboratory for Information Photonic Technology of Shaanxi Province, School of Information and Electronics Engineering, Xi’an Jiaotong University, Xi’an 710049, China
| | - Chuanqi Zhang
- Centre for Nanotechnology & Sustainability, Department of Mechanical Engineering, National University of Singapore, Singapore 119260, Singapore; (V.S.R.); (Y.T.); (C.Z.); (Z.Y.); (A.C.)
| | - Zhen Ye
- Centre for Nanotechnology & Sustainability, Department of Mechanical Engineering, National University of Singapore, Singapore 119260, Singapore; (V.S.R.); (Y.T.); (C.Z.); (Z.Y.); (A.C.)
| | - Kallol Roy
- Centre for Advanced 2D Materials, National University of Singapore, Singapore 117546, Singapore;
| | - Amutha Chinnappan
- Centre for Nanotechnology & Sustainability, Department of Mechanical Engineering, National University of Singapore, Singapore 119260, Singapore; (V.S.R.); (Y.T.); (C.Z.); (Z.Y.); (A.C.)
| | - Seeram Ramakrishna
- Centre for Nanotechnology & Sustainability, Department of Mechanical Engineering, National University of Singapore, Singapore 119260, Singapore; (V.S.R.); (Y.T.); (C.Z.); (Z.Y.); (A.C.)
| | - Wei Liu
- School of Instrument Science and Engineering, Southeast University, Nanjing 211189, China
| | - Rituparna Ghosh
- Centre for Nanotechnology & Sustainability, Department of Mechanical Engineering, National University of Singapore, Singapore 119260, Singapore; (V.S.R.); (Y.T.); (C.Z.); (Z.Y.); (A.C.)
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Li G, Yin Y, Zhang Y, Wu J, Sun S. Electrospun regenerated silk fibroin is a promising biomaterial for the maintenance of inner ear progenitors in vitro. J Biomater Appl 2021; 36:1164-1172. [PMID: 34708663 DOI: 10.1177/08853282211051501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE We sought to determine the biocompatibility of electrospun regenerated silk fibroin (RSF) mats with inner ear progenitors, especially their effect on the differentiation of inner ear progenitors into hair cells. METHODS Neonatal mouse cochleae (n = 20) were collected and digested and allowed to form spheres over several days. Cells digested from the spheres were then seeded onto aligned or random RSF mats, with laminin-coated coverslips serving as controls. The inner ear progenitor cell mortality was examined by TUNEL labeling, and the adhesion of cells to the RSF mats or coverslip was determined by scanning electron microscopy. Finally, the number of hair cells that differentiated from inner ear progenitors was determined by Myosin7a expression. Unpaired Student's t-tests and one-way ANOVA followed by a Dunnett's multiple comparisons test were used in this study (p < 0.05). RESULTS After 5 days of culture, the inner ear progenitors had good adhesion to both the aligned and random RSF mats and there was no significant difference in TUNEL+ cells between the mats compared to the coverslip (p > 0.05). After 7 days of in vitro differentiation culture, the percentage of differentiated hair cells on the control, aligned, and random RSF mats was 2.5 ± 0.5%, 2.7 ± 0.4%, and 2.4 ± 0.2%, respectively, and there was no significant difference between Myosin7a+ cells on either RSF mat compared to controls (p > 0.05). CONCLUSION The aligned and random RSF mats had excellent biocompatibility with inner ear progenitors and helped the inner ear progenitors maintain their stemness. Our results thus indicate that RSF mats represent a useful scaffold for the development of new strategies for inner ear tissue engineering research.
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Affiliation(s)
- Guangfei Li
- 159395ENT Institute and Otorhinolaryngology Department of Eye & ENT Hospital, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Fudan University, Shanghai, 200031, China
| | - Yanbo Yin
- 159395ENT Institute and Otorhinolaryngology Department of Eye & ENT Hospital, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Fudan University, Shanghai, 200031, China
| | - Yaopeng Zhang
- 12475State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, International Joint Laboratory for Advanced Fiber and Low-Dimension Materials, College of Materials Science and Engineering, Donghua University, Shanghai, China
| | - Jingfang Wu
- 159395ENT Institute and Otorhinolaryngology Department of Eye & ENT Hospital, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Fudan University, Shanghai, 200031, China
| | - Shan Sun
- 159395ENT Institute and Otorhinolaryngology Department of Eye & ENT Hospital, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Fudan University, Shanghai, 200031, China
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Guo Y, Wang X, Shen Y, Dong K, Shen L, Alzalab AAA. Research progress, models and simulation of electrospinning technology: a review. J Mater Sci 2021; 57:58-104. [PMID: 34658418 PMCID: PMC8513391 DOI: 10.1007/s10853-021-06575-w] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 09/29/2021] [Indexed: 05/09/2023]
Abstract
In recent years, nanomaterials have aroused extensive research interest in the world's material science community. Electrospinning has the advantages of wide range of available raw materials, simple process, small fiber diameter and high porosity. Electrospinning as a nanomaterial preparation technology with obvious advantages has been studied, such as its influencing parameters, physical models and computer simulation. In this review, the influencing parameters, simulation and models of electrospinning technology are summarized. In addition, the progresses in applications of the technology in biomedicine, energy and catalysis are reported. This technology has many applications in many fields, such as electrospun polymers in various aspects of biomedical engineering. The latest achievements in recent years are summarized, and the existing problems and development trends are analyzed and discussed.
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Affiliation(s)
- Yajin Guo
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070 People’s Republic of China
- International School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070 People’s Republic of China
- Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan, 430070 People’s Republic of China
| | - Xinyu Wang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070 People’s Republic of China
- International School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070 People’s Republic of China
- Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan, 430070 People’s Republic of China
- Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Xianhu Hydrogen Valley, Foshan, 528200 People’s Republic of China
| | - Ying Shen
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070 People’s Republic of China
- International School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070 People’s Republic of China
- Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan, 430070 People’s Republic of China
| | - Kuo Dong
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070 People’s Republic of China
- Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan, 430070 People’s Republic of China
| | - Linyi Shen
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070 People’s Republic of China
- Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan, 430070 People’s Republic of China
| | - Asmaa Ahmed Abdullah Alzalab
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070 People’s Republic of China
- Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan, 430070 People’s Republic of China
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Klaas M, Möll K, Mäemets-Allas K, Loog M, Järvekülg M, Jaks V. Long-term maintenance of functional primary human hepatocytes in 3D gelatin matrices produced by solution blow spinning. Sci Rep 2021; 11:20165. [PMID: 34635750 PMCID: PMC8505433 DOI: 10.1038/s41598-021-99659-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 09/07/2021] [Indexed: 12/11/2022] Open
Abstract
Solution blow spinning (SBS) has recently emerged as a novel method that can produce nano- and microfiber structures suitable for tissue engineering. Gelatin is an excellent precursor for SBS as it is derived mainly from collagens that are abundant in natural extracellular matrices. Here we report, for the first time the successful generation of 3D thermally crosslinked preforms by using SBS from porcine gelatin. These SBS mats were shown to have three-dimensional fibrous porous structure similar to that of mammalian tissue extracellular matrix. In pharma industry, there is an urgent need for adequate 3D liver tissue models that could be used in high throughput setting for drug screening and to assess drug induced liver injury. We used SBS mats as culturing substrates for human hepatocytes to create an array of 3D human liver tissue equivalents in 96-well format. The SBS mats were highly cytocompatible, facilitated the induction of hepatocyte specific CYP gene expression in response to common medications, and supported the maintenance of hepatocyte differentiation and polarization status in long term cultures for more than 3 weeks. Together, our results show that SBS-generated gelatin scaffolds are a simple and efficient platform for use in vitro for drug testing applications.
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Affiliation(s)
- Mariliis Klaas
- Institute of Molecular and Cell Biology, University of Tartu, Riia 23b, 51010, Tartu, Estonia
| | - Kaidi Möll
- Institute of Technology, University of Tartu, Nooruse 1, 50411, Tartu, Estonia
| | - Kristina Mäemets-Allas
- Institute of Molecular and Cell Biology, University of Tartu, Riia 23b, 51010, Tartu, Estonia
| | - Mart Loog
- Institute of Technology, University of Tartu, Nooruse 1, 50411, Tartu, Estonia
| | - Martin Järvekülg
- Laboratory of Physics of Nanostructures, Institute of Physics, University of Tartu, W. Ostwaldi 1, 50411, Tartu, Estonia
| | - Viljar Jaks
- Institute of Molecular and Cell Biology, University of Tartu, Riia 23b, 51010, Tartu, Estonia.
- Dermatology Clinic, Tartu University Hospital, Raja 31, 50417, Tartu, Estonia.
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Dellaquila A, Le Bao C, Letourneur D, Simon‐Yarza T. In Vitro Strategies to Vascularize 3D Physiologically Relevant Models. Adv Sci (Weinh) 2021; 8:e2100798. [PMID: 34351702 PMCID: PMC8498873 DOI: 10.1002/advs.202100798] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 04/23/2021] [Indexed: 05/04/2023]
Abstract
Vascularization of 3D models represents a major challenge of tissue engineering and a key prerequisite for their clinical and industrial application. The use of prevascularized models built from dedicated materials could solve some of the actual limitations, such as suboptimal integration of the bioconstructs within the host tissue, and would provide more in vivo-like perfusable tissue and organ-specific platforms. In the last decade, the fabrication of vascularized physiologically relevant 3D constructs has been attempted by numerous tissue engineering strategies, which are classified here in microfluidic technology, 3D coculture models, namely, spheroids and organoids, and biofabrication. In this review, the recent advancements in prevascularization techniques and the increasing use of natural and synthetic materials to build physiological organ-specific models are discussed. Current drawbacks of each technology, future perspectives, and translation of vascularized tissue constructs toward clinics, pharmaceutical field, and industry are also presented. By combining complementary strategies, these models are envisioned to be successfully used for regenerative medicine and drug development in a near future.
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Affiliation(s)
- Alessandra Dellaquila
- Université de ParisINSERM U1148X Bichat HospitalParisF‐75018France
- Elvesys Microfluidics Innovation CenterParis75011France
- Biomolecular PhotonicsDepartment of PhysicsUniversity of BielefeldBielefeld33615Germany
| | - Chau Le Bao
- Université de ParisINSERM U1148X Bichat HospitalParisF‐75018France
- Université Sorbonne Paris NordGalilée InstituteVilletaneuseF‐93430France
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Saremi J, Khanmohammadi M, Azami M, Ai J, Yousefi-Ahmadipour A, Ebrahimi-Barough S. Tissue-engineered nerve graft using silk-fibroin/polycaprolactone fibrous mats decorated with bioactive cerium oxide nanoparticles. J Biomed Mater Res A 2021; 109:1588-1599. [PMID: 33634587 DOI: 10.1002/jbm.a.37153] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 02/03/2021] [Accepted: 02/14/2021] [Indexed: 12/21/2022]
Abstract
The main aim of this study was to evaluate the efficacy of cerium oxide nanoparticles (CNPs) encapsulated in fabricated hybrid silk-fibroin (SF)/polycaprolactone (PCL) nanofibers as an artificial neural guidance conduit (NGC) applicable for peripheral nerve regeneration. The NGC was prepared by PCL and SF filled with CNPs. The mechanical properties, contact angle, and cell biocompatibility experiments showed that the optimized concentration of CNPs inside SF and SF/PCL wall of conduits was 1% (wt/wt). The SEM image analysis showed the nanoscale texture of the scaffold in different topologies depend on composition with fiber diameters at about 351 ± 54 nm and 420 ± 73 nm respectively for CNPs + SF and CNPs + SF/PCL fibrous mats. Furthermore, contact angle measurement confirmed the hydrophilic behavior of the membranes, ascribable to the SF content and surface modification through modified methanol treatment. The balance of morphological and biochemical properties of hybrid CNPs 1% (wt/wt) + SF/PCL construct improves cell adhesion and proliferation in comparison with lower concentrations of CNPs in nanofibrous scaffolds. The release of CNPs 1% (wt/wt) from both CNPs + SF and CNPs+ SF/PCL fibrous mats was highly controlled and very slow during the extended time of incubation until 60 days. Fabricated double-layered NGC using CNPs + SF and CNPs + SF/PCL fibers was consistent for application in nervous tissue engineering and regenerative medicine from a structural and biocompatible perspective.
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Affiliation(s)
- Jamileh Saremi
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
- Research Center for Noncommunicable Diseases, Jahrom University of Medical Sciences, Jahrom, Iran
| | - Mehdi Khanmohammadi
- Skull Base Research Center, The Five Senses Institute, Hazrat Rasoul Akram Hospital, Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Mahmoud Azami
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Tehran 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
| | - Aliakbar Yousefi-Ahmadipour
- Immunology of Infectious Diseases Research Center, Research Institute of Basic Medical Sciences, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
| | - Somayeh Ebrahimi-Barough
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
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Ranjbar-Mohammadi M, Shakoori P, Arab-Bafrani Z. Design and characterization of keratin/PVA-PLA nanofibers containing hybrids of nanofibrillated chitosan/ZnO nanoparticles. Int J Biol Macromol 2021; 187:554-565. [PMID: 34333003 DOI: 10.1016/j.ijbiomac.2021.07.160] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 07/04/2021] [Accepted: 07/23/2021] [Indexed: 11/18/2022]
Abstract
In this paper, designing electrospun composite nanofibers containing poly (lactic acid) (PLA) and keratin/poly (vinyl alcohol) (K/PVA) as the major components and natural nanofibrillated chitosan (CHNF)/ZnO nanoparticles (ZnONPs) (CSZ) combination as the nanofiller ingredient, has been investigated. PLA solution from one syringe and K/PVA from another one with incorporation of CHNF (CS), CSZ (2:1), (1:1) and (1:2) were electrospun and produced nanofibers were formed on the rotating collector. Addition of CHNF and ZnONPs amounts in CSZ combination resulted in reduction of the diameter of nanofibers. The highest hydrophilicity was reported for K/PVA/CS-PLA/CS sample with the contact angle of about 43 ± 3°. AFM results for K/PVA-PLA, K/PVA/CS-PLA/CS and K/PVA/CSZ(2:1)-PLA/CSZ(2:1), K/PVA/CSZ(1:2)-PLA/CSZ(1:2) samples indicated that the surface roughness factor for these nanofibers was about 708, 277, 378 and 658 nm, respectively. DSC analysis for K/PVA/CSZ(1:2)-PLA/CSZ(1:2) structure exhibited that the peaks related to the melting points of PLA and PVA shifted to higher temperatures. Overally, K/PVA/CSZ(2:1)-PLA/CSZ(2:1) nanofiber with diameter of 352.50 ± 31 nm, contact angle of 48 ± 3°, tensile strength of 0.96 ± 0.18 MPa is suggested as a proper wound healing scaffold that has highest antibacterial as well as potential to increase cell proliferation.
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Affiliation(s)
| | - Parinaz Shakoori
- Textile Group, Faculty of Engineering, University of Bonab, Bonab, Iran
| | - Zahra Arab-Bafrani
- Metabolic Disorders Research Center, Golestan University of Medical Sciences, Gorgan, Iran; Department of Biochemistry and Biophysics, Faculty of Medicine, Golestan University of Medical Sciences, Gorgan, Iran
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Mehan N, Kumar M, Bhatt S, Saini V. A Current Review on Drug Loaded Nanofibers: Interesting and Valuable Platform for Skin Cancer Treatment. Pharm Nanotechnol 2021; 8:191-206. [PMID: 31965948 DOI: 10.2174/2211738508666200121103110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 12/05/2019] [Accepted: 01/03/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Nanofibers are used in topical medication for various skin diseases like wound healing, skin cancer and others. Non-melanoma skin cancers (NMSCs) are the most widely distributed diseases in the world, of which 99% of people are affected by either basal cell carcinomas (BCCs) or squamous cell carcinomas (SCCs) of the skin. Skin malignancy is caused by direct sun exposure and regular application of unsafe restorative items on the skin. OBJECTIVE This review presents the use of nanofibers in skin cancer treatment and advances made in skin cancer treatment. METHODS There are various methods used in the production of nanofibers such as bicomponent extrusion, phase separation, template synthesis, drawing, electrospinning, and others. Electrospinning is the most widely used technique for nanofiber fabrication. The nanofibers are produced in nanometer size range and mostly used in medication because of their low thickness, large surface area per unit mass and porosity. Nanofibers are also used as drug delivery system for sustaining the action of drugs or medicaments. RESULTS Nanofibers enhance the permeation and availability of those drugs having low bioavailability and low permeability. Nanofibers increase the sustainability of the drugs up to 10 days. CONCLUSION Skin cancer is the abnormal growth of skin cells in the body influencing people of all colours and skin. In this review paper, the definition and production techniques of nanofibers and drugs used in skin cancer treatment and the relation between skin cancer and nanofiber are illustrated in detail. With the help of different techniques and drugs, the risk of non-melanoma skin cancer is reduced. Lay Summary: The risk of skin cancer and other skin problems is increasing day by day. In a previous study we found that the nanofibers are less used as a topical delivery system. We have studied the nanofibers as a drug delivery system in the treatment of skin cancer by using different drugs. According our study nanofibers are most useful in skin drug delivery and if the nanofiber, are merging with other drug delivery system like nanoparticles, it may maximize the output of drug into skin. The significance of this study is, to explain all information about nanofibers in skin cancer.
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Affiliation(s)
- Navneet Mehan
- M.M. College of Pharmacy, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala, Haryana, India
| | - Manish Kumar
- M.M. College of Pharmacy, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala, Haryana, India
| | - Shailendra Bhatt
- M.M. College of Pharmacy, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala, Haryana, India
| | - Vipin Saini
- M.M. University, Solan, Himachal Pradesh, India
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Soraya Z, Ghollasi M, Halabian R, Eftekhari E, Tabasi A, Salimi A. Donepezil hydrochloride as a novel inducer for osteogenic differentiation of mesenchymal stem cells on PLLA scaffolds in vitro. Biotechnol J 2021; 16:e2100112. [PMID: 34170068 DOI: 10.1002/biot.202100112] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 06/08/2021] [Accepted: 06/17/2021] [Indexed: 01/14/2023]
Abstract
Over the past decades, bone defects caused by illness or trauma have been the most common traumatic injuries in humans and treatment of orthopedic infections has always been a serious challenge to experts in the world. In this project, poly L-lactic acid (PLLA) nanofibrous scaffolds were synthesized as a nontoxic, eco-friendly, and cost-effective scaffold by the electrospinning technique. Then, the impact of PLLA on the cell proliferation and osteogenic differentiation of human mesenchymal stem cells (hMSCs) was assayed in the presence and absence of donepezil hydrochloride (DH) which was prescribed in patients with Alzheimer's disease. Also, hMSCs were seeded on PLLA scaffold in the presence (PLLA-DH) and absence of 1 μg mL-1 of DH under osteogenic induction media. Osteogenic differentiation of hMSCs was assessed by specific bone-related tests including alkaline phosphatase (ALP) activity, Alizarin red and von Kossa staining, calcium content assay. Also, Osteocalcin and osteopontin were evaluated as osteogenic proteins as well as ALP, osteonectin, osteocalcin, collagen type I (Col-I) and Runx2 as osteogenic genes via immunocytochemistry (ICC) and Real-time PCR analyses. The obtained data showed the higher ALP enzyme activity and biomineralization, more intensity during von Kossa staining as well as the increase in the expression rate of osteogenic related gene and protein markers in differentiated hMSCs on PLLA-DH. In conclusion, the present study revealed that the combination of PLLA scaffold with DH provides a scope to develop a suitable matrix in bone tissue engineering applications.
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Affiliation(s)
- Zahra Soraya
- Department of Molecular and Cellular Sciences, Pharmaceutical Sciences Branch, Islamic Azad University, Tehran, Iran
| | - Marzieh Ghollasi
- Department of Cell and Molecular Biology, Faculty of Biological Sciences, Kharazmi University, Tehran, Iran
| | - Raheleh Halabian
- Applied Microbiology Research Center, Systems Biology and Poisonings Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Elahe Eftekhari
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Amin Tabasi
- Department of Cellular and Molecular biology, Faculty of Advanced Science and Technology, Tehran Medical Science Branch, Islamic Azad University, Tehran, Iran
| | - Ali Salimi
- Nanobiotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
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Zhuang Y, Zhang C, Cheng M, Huang J, Liu Q, Yuan G, Lin K, Yu H. Challenges and strategies for in situ endothelialization and long-term lumen patency of vascular grafts. Bioact Mater 2021; 6:1791-1809. [PMID: 33336112 PMCID: PMC7721596 DOI: 10.1016/j.bioactmat.2020.11.028] [Citation(s) in RCA: 75] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 11/11/2020] [Accepted: 11/24/2020] [Indexed: 02/08/2023] Open
Abstract
Vascular diseases are the most prevalent cause of ischemic necrosis of tissue and organ, which even result in dysfunction and death. Vascular regeneration or artificial vascular graft, as the conventional treatment modality, has received keen attentions. However, small-diameter (diameter < 4 mm) vascular grafts have a high risk of thrombosis and intimal hyperplasia (IH), which makes long-term lumen patency challengeable. Endothelial cells (ECs) form the inner endothelium layer, and are crucial for anti-coagulation and thrombogenesis. Thus, promoting in situ endothelialization in vascular graft remodeling takes top priority, which requires recruitment of endothelia progenitor cells (EPCs), migration, adhesion, proliferation and activation of EPCs and ECs. Chemotaxis aimed at ligands on EPC surface can be utilized for EPC homing, while nanofibrous structure, biocompatible surface and cell-capturing molecules on graft surface can be applied for cell adhesion. Moreover, cell orientation can be regulated by topography of scaffold, and cell bioactivity can be modulated by growth factors and therapeutic genes. Additionally, surface modification can also reduce thrombogenesis, and some drug release can inhibit IH. Considering the influence of macrophages on ECs and smooth muscle cells (SMCs), scaffolds loaded with drugs that can promote M2 polarization are alternative strategies. In conclusion, the advanced strategies for enhanced long-term lumen patency of vascular grafts are summarized in this review. Strategies for recruitment of EPCs, adhesion, proliferation and activation of EPCs and ECs, anti-thrombogenesis, anti-IH, and immunomodulation are discussed. Ideal vascular grafts with appropriate surface modification, loading and fabrication strategies are required in further studies.
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Affiliation(s)
- Yu Zhuang
- Department of Oral and Cranio-maxillofacial Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
- National Clinical Research Center for Oral Diseases, Shanghai, 200011, China
- Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, 200011, China
| | - Chenglong Zhang
- Department of Oral and Cranio-maxillofacial Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
- National Clinical Research Center for Oral Diseases, Shanghai, 200011, China
- Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, 200011, China
| | - Mengjia Cheng
- Department of Oral and Cranio-maxillofacial Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
- National Clinical Research Center for Oral Diseases, Shanghai, 200011, China
- Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, 200011, China
| | - Jinyang Huang
- Department of Oral and Cranio-maxillofacial Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
- National Clinical Research Center for Oral Diseases, Shanghai, 200011, China
- Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, 200011, China
| | - Qingcheng Liu
- Department of Oral and Cranio-maxillofacial Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
- National Clinical Research Center for Oral Diseases, Shanghai, 200011, China
- Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, 200011, China
| | - Guangyin Yuan
- National Engineering Research Center of Light Alloy Net Forming & State Key Laboratory of Metal Matrix Composite, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Kaili Lin
- Department of Oral and Cranio-maxillofacial Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
- National Clinical Research Center for Oral Diseases, Shanghai, 200011, China
- Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, 200011, China
| | - Hongbo Yu
- Department of Oral and Cranio-maxillofacial Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, China
- National Clinical Research Center for Oral Diseases, Shanghai, 200011, China
- Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, 200011, China
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da Silva Brum I, Frigo L, Goncalo Pinto Dos Santos P, Nelson Elias C, da Fonseca GAMD, Jose de Carvalho J. Performance of Nano-Hydroxyapatite/Beta-Tricalcium Phosphate and Xenogenic Hydroxyapatite on Bone Regeneration in Rat Calvarial Defects: Histomorphometric, Immunohistochemical and Ultrastructural Analysis. Int J Nanomedicine 2021; 16:3473-3485. [PMID: 34040373 PMCID: PMC8140889 DOI: 10.2147/ijn.s301470] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 04/26/2021] [Indexed: 12/18/2022] Open
Abstract
Background Synthetic biomaterials have played an increasingly prominent role in the substitution of naturally derived biomaterials in current surgery practice. In vitro and in vivo characterization studies of new synthetic biomaterials are essential to analyze their physicochemical properties and the underlying mechanisms associated with the modulation of the inflammatory process and bone healing. Purpose This study compares the in vivo tissue behavior of a synthetic biomaterial nano-hydroxyapatite/beta-tricalcium phosphate (nano-HA/ß-TCP mixture) and deproteinized bovine bone mineral (DBBM) in a rat calvarial defect model. The innovation of this work is in the comparative analysis of the effect of new synthetic and commercially xenogenic biomaterials on the inflammatory response, bone matrix gain, and stimulation of osteoclastogenesis and osteoblastogenesis. Methods Both biomaterials were inserted in rat defects. The animals were divided into three groups, in which calvarial defects were filled with xenogenic biomaterials (group 1) and synthetic biomaterials (group 2), or left unfilled (group 3, controls). Sixty days after calvarial bone defects filled with biomaterials, periodic acid Schiff (PAS) and Masson’s trichrome staining, immunohistochemistry tumor necrosis factor-alpha (TNF-α), matrix metalloproteinase-9 (MMP-9), and electron microscopy analyses were conducted. Results Histomorphometric analysis revealed powerful effects such as a higher amount of proteinaceous matrix and higher levels of TNF-α and MMP-9 in bone defects treated with alloplastic nano-HA/ß-TCP mixture than xenogenicxenogic biomaterial, as well as collagen-proteinaceous material in association with hydroxyapatite crystalloids. Conclusion These data indicate that the synthetic nano-HA/ß-TCP mixture enhanced bone formation/remodeling in rat calvarial bone defects. The nano-HA/ß-TCP did not present risks of cross-infection/disease transmission. The synthetic nano-hydroxyapatite/beta-tricalcium phosphate mixture presented adequate properties for guided bone regeneration and guided tissue regeneration for dental surgical procedures.
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Affiliation(s)
- Igor da Silva Brum
- Implantology Department, School of Dentistry, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Lucio Frigo
- Periodontology Department, School of Dentistry, Universidade Guarulhos, São Paulo, Brazil
| | | | | | | | - Jorge Jose de Carvalho
- Biology Department, School of Medicine, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
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Marquez-Bravo S, Doench I, Molina P, Bentley FE, Tamo AK, Passieux R, Lossada F, David L, Osorio-Madrazo A. Functional Bionanocomposite Fibers of Chitosan Filled with Cellulose Nanofibers Obtained by Gel Spinning. Polymers (Basel) 2021; 13:polym13101563. [PMID: 34068136 PMCID: PMC8152965 DOI: 10.3390/polym13101563] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 05/07/2021] [Accepted: 05/11/2021] [Indexed: 12/20/2022] Open
Abstract
Extremely high mechanical performance spun bionanocomposite fibers of chitosan (CHI), and cellulose nanofibers (CNFs) were successfully achieved by gel spinning of CHI aqueous viscous formulations filled with CNFs. The microstructural characterization of the fibers by X-ray diffraction revealed the crystallization of the CHI polymer chains into anhydrous chitosan allomorph. The spinning process combining acidic-basic-neutralization-stretching-drying steps allowed obtaining CHI/CNF composite fibers of high crystallinity, with enhanced effect at incorporating the CNFs. Chitosan crystallization seems to be promoted by the presence of cellulose nanofibers, serving as nucleation sites for the growing of CHI crystals. Moreover, the preferential orientation of both CNFs and CHI crystals along the spun fiber direction was revealed in the two-dimensional X-ray diffraction patterns. By increasing the CNF amount up to the optimum concentration of 0.4 wt % in the viscous CHI/CNF collodion, Young's modulus of the spun fibers significantly increased up to 8 GPa. Similarly, the stress at break and the yield stress drastically increased from 115 to 163 MPa, and from 67 to 119 MPa, respectively, by adding only 0.4 wt % of CNFs into a collodion solution containing 4 wt % of chitosan. The toughness of the CHI-based fibers thereby increased from 5 to 9 MJ.m-3. For higher CNFs contents like 0.5 wt %, the high mechanical performance of the CHI/CNF composite fibers was still observed, but with a slight worsening of the mechanical parameters, which may be related to a minor disruption of the CHI matrix hydrogel network constituting the collodion and gel fiber, as precursor state for the dry fiber formation. Finally, the rheological behavior observed for the different CHI/CNF viscous collodions and the obtained structural, thermal and mechanical properties results revealed an optimum matrix/filler compatibility and interface when adding 0.4 wt % of nanofibrillated cellulose (CNF) into 4 wt % CHI formulations, yielding functional bionanocomposite fibers of outstanding mechanical properties.
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Affiliation(s)
- Sofia Marquez-Bravo
- Institute of Microsystems Engineering IMTEK, University of Freiburg, 79110 Freiburg, Germany; (S.M.-B.); (I.D.); (P.M.); (F.E.B.); (A.K.T.)
- Freiburg Materials Research Center FMF, University of Freiburg, 79104 Freiburg, Germany
- Freiburg Center for Interactive Materials and Bioinspired Technologies FIT, University of Freiburg, 79110 Freiburg, Germany
| | - Ingo Doench
- Institute of Microsystems Engineering IMTEK, University of Freiburg, 79110 Freiburg, Germany; (S.M.-B.); (I.D.); (P.M.); (F.E.B.); (A.K.T.)
- Freiburg Materials Research Center FMF, University of Freiburg, 79104 Freiburg, Germany
- Freiburg Center for Interactive Materials and Bioinspired Technologies FIT, University of Freiburg, 79110 Freiburg, Germany
| | - Pamela Molina
- Institute of Microsystems Engineering IMTEK, University of Freiburg, 79110 Freiburg, Germany; (S.M.-B.); (I.D.); (P.M.); (F.E.B.); (A.K.T.)
- Freiburg Materials Research Center FMF, University of Freiburg, 79104 Freiburg, Germany
- Freiburg Center for Interactive Materials and Bioinspired Technologies FIT, University of Freiburg, 79110 Freiburg, Germany
| | - Flor Estefany Bentley
- Institute of Microsystems Engineering IMTEK, University of Freiburg, 79110 Freiburg, Germany; (S.M.-B.); (I.D.); (P.M.); (F.E.B.); (A.K.T.)
- Freiburg Materials Research Center FMF, University of Freiburg, 79104 Freiburg, Germany
- Freiburg Center for Interactive Materials and Bioinspired Technologies FIT, University of Freiburg, 79110 Freiburg, Germany
| | - Arnaud Kamdem Tamo
- Institute of Microsystems Engineering IMTEK, University of Freiburg, 79110 Freiburg, Germany; (S.M.-B.); (I.D.); (P.M.); (F.E.B.); (A.K.T.)
- Freiburg Materials Research Center FMF, University of Freiburg, 79104 Freiburg, Germany
- Freiburg Center for Interactive Materials and Bioinspired Technologies FIT, University of Freiburg, 79110 Freiburg, Germany
| | - Renaud Passieux
- Laboratoire Ingénierie des Matériaux Polymères IMP, CNRS UMR 5223, University of Lyon, University Claude Bernard Lyon 1, CEDEX, 69622 Villeurbanne, France; (R.P.); (L.D.)
| | | | - Laurent David
- Laboratoire Ingénierie des Matériaux Polymères IMP, CNRS UMR 5223, University of Lyon, University Claude Bernard Lyon 1, CEDEX, 69622 Villeurbanne, France; (R.P.); (L.D.)
| | - Anayancy Osorio-Madrazo
- Institute of Microsystems Engineering IMTEK, University of Freiburg, 79110 Freiburg, Germany; (S.M.-B.); (I.D.); (P.M.); (F.E.B.); (A.K.T.)
- Freiburg Materials Research Center FMF, University of Freiburg, 79104 Freiburg, Germany
- Freiburg Center for Interactive Materials and Bioinspired Technologies FIT, University of Freiburg, 79110 Freiburg, Germany
- Correspondence: ; Tel.: +49-761-203-67363
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Gurel Pekozer G, Abay Akar N, Cumbul A, Beyzadeoglu T, Torun Kose G. Investigation of Vasculogenesis Inducing Biphasic Scaffolds for Bone Tissue Engineering. ACS Biomater Sci Eng 2021; 7:1526-1538. [PMID: 33740374 DOI: 10.1021/acsbiomaterials.0c01071] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Vascularization is the main obstacle for the bone tissue engineering strategies since the defect size is generally large. Incorporation of angiogenic factors is one of the strategies employed in order to accelerate vascularization and improve bone healing. In this study, a biphasic scaffold consisting of fibrous poly(lactide-co-glycolide) (PLGA) and poly(lactide-co-glycolide)-block-poly(ethylene glycol)-block-poly(lactide-co-glycolide) (PLGA-PEG-PLGA) hydrogel loaded with vascular endothelial growth factor-A (VEGF) inducer, GS4012, was constructed. Mesenchymal stem cells isolated from rat bone marrow (rBMSCs) were used for differentiation into osteogenic cells, and endothelial cells isolated from rat peripheral blood (rPBECs) were used to test the in vitro endothelial cell recruitment. The biphasic scaffold was tested for cell proliferation, ALP expression, VEGF induction, expression of osteogenic genes by rBMSCs, and recruitment of rPBECs in vitro and for improved bone healing and vascularization in vivo on critical size rat cranial defects. Endothelial migration through porous insert and VEGF induction were obtained in vitro in response to GS4012 as well as the upregulation of ALP, Runx2, Col I, and OC gene expressions. The biphasic scaffold was also shown to be effective in improving endothelial cell recruitment, vascularization, and bone healing in vivo. Thus, the proposed design has a great potential for the healing of critical size bone defect in tissue engineering studies according to both in vitro and in vivo investigations.
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Affiliation(s)
- Gorke Gurel Pekozer
- Biomedical Engineering Department, Faculty of Electrical and Electronics Engineering, Yildiz Technical University, Istanbul 34220, Turkey
| | - Nergis Abay Akar
- Genetics and Bioengineering Department, Faculty of Engineering, Yeditepe University, Istanbul 34755, Turkey
| | - Alev Cumbul
- Histology and Embryology Department, Faculty of Medicine, Yeditepe University, Istanbul 34755, Turkey
| | - Tahsin Beyzadeoglu
- Orthopaedics and Traumatology, Facuty of Health Sciences, Halic University Beyzadeoglu Clinic, Istanbul 34738, Turkey
| | - Gamze Torun Kose
- Genetics and Bioengineering Department, Faculty of Engineering, Yeditepe University, Istanbul 34755, Turkey
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Bianchi E, Ruggeri M, Rossi S, Vigani B, Miele D, Bonferoni MC, Sandri G, Ferrari F. Innovative Strategies in Tendon Tissue Engineering. Pharmaceutics 2021; 13:89. [PMID: 33440840 PMCID: PMC7827834 DOI: 10.3390/pharmaceutics13010089] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 12/31/2020] [Accepted: 01/08/2021] [Indexed: 12/15/2022] Open
Abstract
The tendon is a highly aligned connective tissue that transmits force from muscle to bone. Each year, more than 32 million tendon injuries have been reported, in fact, tendinopathies represent at least 50% of all sports injuries, and their incidence rates have increased in recent decades due to the aging population. Current clinical grafts used in tendon treatment are subject to several restrictions and there is a significant demand for alternative engineered tissue. For this reason, innovative strategies need to be explored. Tendon replacement and regeneration are complex since scaffolds need to guarantee an adequate hierarchical structured morphology and mechanical properties to stand the load. Moreover, to guide cell proliferation and growth, scaffolds should provide a fibrous network that mimics the collagen arrangement of the extracellular matrix in the tendons. This review focuses on tendon repair and regeneration. Particular attention has been devoted to the innovative approaches in tissue engineering. Advanced manufacturing techniques, such as electrospinning, soft lithography, and three-dimensional (3D) printing, have been described. Furthermore, biological augmentation has been considered, as an emerging strategy with great therapeutic potential.
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Affiliation(s)
| | | | | | | | | | | | - Giuseppina Sandri
- Department of Drug Sciences, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy; (E.B.); (M.R.); (S.R.); (B.V.); (D.M.); (M.C.B.); (F.F.)
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Abstract
Bone defects due to trauma or diseases still pose a clinical challenge to be resolved in the current tissue engineering approaches. As an alternative to traditional methods to restore bone defects, such as autografts, bone tissue engineering aims to achieve new bone formation via novel biomaterials used in combination with multipotent stem cells and bioactive molecules. Mesenchymal stem cells (MSCs) can be successfully isolated from various dental tissues at different stages of development including dental pulp, apical papilla, dental follicle, tooth germ, deciduous teeth, periodontal ligament and gingiva. A wide range of biomaterials including polymers, ceramics and composites have been investigated for their potential as an ideal bone scaffold material. This article reviews the properties and the manufacturing methods of biomaterials used in bone tissue engineering, and provides an overview of bone tissue regeneration approaches of scaffold and dental stem cell combinations as well as their limitations.
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Affiliation(s)
- Pınar Ercal
- Faculty of Dentistry, Department of Oral Surgery, Altinbas University, Istanbul, Turkey.
| | - Gorke Gurel Pekozer
- Faculty of Electrical and Electronics Engineering, Department of Biomedical Engineering, Yıldız Technical University, Istanbul, Turkey
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Patil PP, Reagan MR, Bohara RA. Silk fibroin and silk-based biomaterial derivatives for ideal wound dressings. Int J Biol Macromol 2020; 164:4613-4627. [PMID: 32814099 PMCID: PMC7849047 DOI: 10.1016/j.ijbiomac.2020.08.041] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 07/23/2020] [Accepted: 08/05/2020] [Indexed: 01/12/2023]
Abstract
Silk fibroin (SF) is derived from Bombyx mori silkworm cocoons and has been used in textiles and as a suture material for decades. More recently, SF has been used for various new biomedical applications, including as a wound dressing, owing to its excellent biological and mechanical properties. Specifically, the mechanical stiffness, versatility, biocompatibility, biodegradability, water vapour permeability and slight bactericidal properties make SF an excellent candidate biomaterial for wound dressing applications. The effectiveness of SF as a wound dressing has been tested and well-documented in vitro as well as in-vivo, as described here. Dressings based on SF are currently used for treating a wide variety of chronic and acute (e.g. burn) wounds. SF and its derivatives prepared as biomaterials are available as sponges, hydrogels, nanofibrous matrices, scaffolds, micro/nanoparticles, and films. The present review discusses the potential role of SF in wound dressing and its modulation for wound dressing applications. The comparison of SF based dressings with other natural polymers understands the readers, the scope and limitation of the subject in-depth.
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Affiliation(s)
- Priyanka P Patil
- Sigma Institute of Science and Commerce, Bakrol, Vadodara, Gujarat 390019, India
| | | | - Raghvendra A Bohara
- CÚRAM, SFI Research Centre for Medical Devices, National University of Ireland Galway, Ireland; Centre for Interdisciplinary Research, D. Y. Patil Education Society (Institution Deemed to be University), Kolhapur 416006, India.
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Sahi AK, Varshney N, Poddar S, Mahto SK. Comparative behaviour of electrospun nanofibers fabricated from acid and alkaline hydrolysed gelatin: towards corneal tissue engineering. J Polym Res 2020; 27. [DOI: 10.1007/s10965-020-02307-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Kumar P, Saini M, Dehiya BS, Sindhu A, Kumar V, Kumar R, Lamberti L, Pruncu CI, Thakur R. Comprehensive Survey on Nanobiomaterials for Bone Tissue Engineering Applications. Nanomaterials (Basel) 2020; 10:E2019. [PMID: 33066127 PMCID: PMC7601994 DOI: 10.3390/nano10102019] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 10/08/2020] [Accepted: 10/09/2020] [Indexed: 02/06/2023]
Abstract
One of the most important ideas ever produced by the application of materials science to the medical field is the notion of biomaterials. The nanostructured biomaterials play a crucial role in the development of new treatment strategies including not only the replacement of tissues and organs, but also repair and regeneration. They are designed to interact with damaged or injured tissues to induce regeneration, or as a forest for the production of laboratory tissues, so they must be micro-environmentally sensitive. The existing materials have many limitations, including impaired cell attachment, proliferation, and toxicity. Nanotechnology may open new avenues to bone tissue engineering by forming new assemblies similar in size and shape to the existing hierarchical bone structure. Organic and inorganic nanobiomaterials are increasingly used for bone tissue engineering applications because they may allow to overcome some of the current restrictions entailed by bone regeneration methods. This review covers the applications of different organic and inorganic nanobiomaterials in the field of hard tissue engineering.
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Affiliation(s)
- Pawan Kumar
- Department of Materials Science and Nanotechnology, Deenbandhu Chhotu Ram University of Science and Technology, Murthal 131039, India; (M.S.); (B.S.D.)
| | - Meenu Saini
- Department of Materials Science and Nanotechnology, Deenbandhu Chhotu Ram University of Science and Technology, Murthal 131039, India; (M.S.); (B.S.D.)
| | - Brijnandan S. Dehiya
- Department of Materials Science and Nanotechnology, Deenbandhu Chhotu Ram University of Science and Technology, Murthal 131039, India; (M.S.); (B.S.D.)
| | - Anil Sindhu
- Department of Biotechnology, Deenbandhu Chhotu Ram University of Science and Technology, Murthal 131039, India;
| | - Vinod Kumar
- Department of Bio and Nanotechnology, Guru Jambheshwar University of Science and Technology, Hisar 125001, India; (V.K.); (R.T.)
| | - Ravinder Kumar
- School of Mechanical Engineering, Lovely Professional University, Phagwara 144411, India
| | - Luciano Lamberti
- Dipartimento di Meccanica, Matematica e Management, Politecnico di Bari, 70125 Bari, Italy;
| | - Catalin I. Pruncu
- Department of Design, Manufacturing & Engineering Management, University of Strathclyde, Glasgow G1 1XJ, UK
- Department of Mechanical Engineering, Imperial College London, London SW7 2AZ, UK
| | - Rajesh Thakur
- Department of Bio and Nanotechnology, Guru Jambheshwar University of Science and Technology, Hisar 125001, India; (V.K.); (R.T.)
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Safi IN, Al-Shammari AM, Ul-Jabbar MA, Hussein BMA. Preparing polycaprolactone scaffolds using electrospinning technique for construction of artificial periodontal ligament tissue. J Taibah Univ Med Sci 2020; 15:363-73. [PMID: 33132808 DOI: 10.1016/j.jtumed.2020.07.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 07/16/2020] [Accepted: 07/20/2020] [Indexed: 11/28/2022] Open
Abstract
Objectives The strategies of tissue-engineering led to the development of living cell-based therapies to repair lost or damaged tissues, including periodontal ligament and to construct biohybrid implant. This work aimed to isolate human periodontal ligament stem cells (hPDLSCs) and implant them on fabricated polycaprolactone (PCL) for the regeneration of natural periodontal ligament (PDL) tissues. Methods hPDLSCs were harvested from extracted human premolars, cultured, and expanded to obtain PDL cells. A PDL-specific marker (periostin) was detected using an immunofluorescent assay. Electrospinning was applied to fabricate PCL at three concentrations (13%, 16%, and 20% weight/volume) in two forms, which were examined through field emission scanning electron microscopy (FESEM). The isolated hPDLSCs were implanted on the fabricated PCL. After 21 days, FESEM was conducted to evaluate the implanted scaffolds, and an MTT assay was performed to characterize the biological response of the PCL scaffold at different cell exposure durations (24, 48, and 72 h). Results Periostin was expressed in the expanded PDL cells, and this result revealed that 20% weight/volume PCL scaffold with a pore size of more than 10 μm was the best. The growth rates of PDLSCs were high. Cytotoxicity test of fabricated PCL scaffold demonstrated no significant change in the cell viability when compared with the negative control and no deteriorating or inhibitory effect on growth after different durations. Conclusions A cell sheet was successfully formed by using PCL as a scaffold to cover dental implants and promote PDL cell attachment, proliferation, and growth for biohybrid implant construction.
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Davoodi E, Sarikhani E, Montazerian H, Ahadian S, Costantini M, Swieszkowski W, Willerth S, Walus K, Mofidfar M, Toyserkani E, Khademhosseini A, Ashammakhi N. Extrusion and Microfluidic-based Bioprinting to Fabricate Biomimetic Tissues and Organs. Adv Mater Technol 2020; 5:1901044. [PMID: 33072855 PMCID: PMC7567134 DOI: 10.1002/admt.201901044] [Citation(s) in RCA: 71] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Accepted: 03/10/2020] [Indexed: 05/07/2023]
Abstract
Next generation engineered tissue constructs with complex and ordered architectures aim to better mimic the native tissue structures, largely due to advances in three-dimensional (3D) bioprinting techniques. Extrusion bioprinting has drawn tremendous attention due to its widespread availability, cost-effectiveness, simplicity, and its facile and rapid processing. However, poor printing resolution and low speed have limited its fidelity and clinical implementation. To circumvent the downsides associated with extrusion printing, microfluidic technologies are increasingly being implemented in 3D bioprinting for engineering living constructs. These technologies enable biofabrication of heterogeneous biomimetic structures made of different types of cells, biomaterials, and biomolecules. Microfluiding bioprinting technology enables highly controlled fabrication of 3D constructs in high resolutions and it has been shown to be useful for building tubular structures and vascularized constructs, which may promote the survival and integration of implanted engineered tissues. Although this field is currently in its early development and the number of bioprinted implants is limited, it is envisioned that it will have a major impact on the production of customized clinical-grade tissue constructs. Further studies are, however, needed to fully demonstrate the effectiveness of the technology in the lab and its translation to the clinic.
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Affiliation(s)
- Elham Davoodi
- Department of Mechanical and Mechatronics Engineering, University of Waterloo, Waterloo, ON N2L 3G1, Canada
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, CA 90095, USA
- Department of Bioengineering, University of California, Los Angeles, CA 90095, USA
| | - Einollah Sarikhani
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, CA 90095, USA
- Department of Bioengineering, University of California, Los Angeles, CA 90095, USA
| | - Hossein Montazerian
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, CA 90095, USA
- Department of Bioengineering, University of California, Los Angeles, CA 90095, USA
| | - Samad Ahadian
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, CA 90095, USA
- Department of Bioengineering, University of California, Los Angeles, CA 90095, USA
| | - Marco Costantini
- Biomaterials Group, Materials Design Division, Faculty of Materials Science and Engineering, Warsaw University of Technology, 00-661 Warsaw, Poland
- Institute of Physical Chemistry – Polish Academy of Sciences, 01-224 Warsaw, Poland
| | - Wojciech Swieszkowski
- Biomaterials Group, Materials Design Division, Faculty of Materials Science and Engineering, Warsaw University of Technology, 00-661 Warsaw, Poland
| | - Stephanie Willerth
- Department of Mechanical Engineering, Division of Medical Sciences, University of Victoria, BC V8P 5C2, Canada
| | - Konrad Walus
- Department of Electrical and Computer Engineering, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
| | - Mohammad Mofidfar
- Department of Biomedical Engineering, University of Southern California, Los Angeles, CA 90089, USA
| | - Ehsan Toyserkani
- Department of Mechanical and Mechatronics Engineering, University of Waterloo, Waterloo, ON N2L 3G1, Canada
| | - Ali Khademhosseini
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, CA 90095, USA
- Department of Bioengineering, University of California, Los Angeles, CA 90095, USA
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, CA 90095, USA
- Department of Radiological Sciences, University of California, Los Angeles, CA 90095, USA
| | - Nureddin Ashammakhi
- Center for Minimally Invasive Therapeutics (C-MIT), University of California, Los Angeles, CA 90095, USA
- Department of Bioengineering, University of California, Los Angeles, CA 90095, USA
- Department of Radiological Sciences, University of California, Los Angeles, CA 90095, USA
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Kurakula M, Koteswara Rao G. Moving polyvinyl pyrrolidone electrospun nanofibers and bioprinted scaffolds toward multidisciplinary biomedical applications. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109919] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Kazsoki A, Farkas A, Balogh-Weiser D, Mancuso E, Sharma PK, Lamprou DA, Zelkó R. Novel combination of non-invasive morphological and solid-state characterisation of drug-loaded core-shell electrospun fibres. Int J Pharm 2020; 587:119706. [PMID: 32739390 DOI: 10.1016/j.ijpharm.2020.119706] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 07/24/2020] [Accepted: 07/25/2020] [Indexed: 12/12/2022]
Abstract
In recent years, core-shell nanofibrous drug delivery systems have received increasing attention due to their ability to incorporate two or more active pharmaceutical ingredients (APIs) individually into the desired layer (either core or sheath) and thereby finely tune the release profiles of even incompatible drugs in one system. This study aims to perform formulation and solid-state characterisation of levofloxacin-loaded polylactic acid (PLA) - naproxen-sodium-loaded polyvinyl pyrrolidone (PVP) bicomponent core-shell fibrous sheets and examine the electro spinnability of the precursor combinations. The selected drugs have potential therapeutic relevance in similar systems intended for wound healing; however, in this study, they are used as model drugs to understand the physicochemical properties of a drug loaded system. In order to determine the best core- and shell-solution combination, a full factorial experimental design is used. A combination of various morphological (scanning electron microscopy and transmission electron microscopy) and microstructural characterisation techniques (X-ray photoelectron spectroscopy and Raman spectroscopy) was applied to non-invasively obtain information about the structure of the fibres and the embedded drugs. The results indicate that core-shell fibres of different compositions could be successfully prepared with various structural homogeneities. The best core-shell structure was obtained using a combination of 15% (w/w) shell concentration and 8% (w/w) PLA solution concentration. In addition to the conventional core-shell structural verification methods, the Raman spectroscopy method was implemented to reveal not only the core-shell structure of the PLA/PVP nanofibers but also the form of the embedded drugs. The Raman mapping of the fibres confirm the above results, and it is shown that an amorphous solid dispersion is formed as a result of the coaxial electrospinning process.
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Affiliation(s)
- Adrienn Kazsoki
- University Pharmacy Department of Pharmacy Administration, Semmelweis University, Hőgyes Endre utca 7-9, H-1092 Budapest, Hungary
| | - Attila Farkas
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Műegyetem rakpart 3, H-1111 Budapest, Hungary
| | - Diána Balogh-Weiser
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Műegyetem rakpart 3, H-1111 Budapest, Hungary; Department of Physical Chemistry and Materials Science, Budapest University of Technology and Economics, Műegyetem rakpart 3, H-1111 Budapest, Hungary
| | - Elena Mancuso
- Nanotechnology and Integrated Bio-Engineering Centre (NIBEC), Ulster University, Jordanstown campus, UK
| | - Preetam K Sharma
- Nanotechnology and Integrated Bio-Engineering Centre (NIBEC), Ulster University, Jordanstown campus, UK
| | - Dimitrios A Lamprou
- School of Pharmacy, Queen's University Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - Romána Zelkó
- University Pharmacy Department of Pharmacy Administration, Semmelweis University, Hőgyes Endre utca 7-9, H-1092 Budapest, Hungary.
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