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Ma S, Zheng S, Li D, Hu W, Wang L. Melt Electrowriting Combined with Fused Deposition Modeling Printing for the Fabrication of Three-Dimensional Biomimetic Scaffolds for Osteotendinous Junction Regeneration. Int J Nanomedicine 2024; 19:3275-3293. [PMID: 38601348 PMCID: PMC11005997 DOI: 10.2147/ijn.s449952] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 03/28/2024] [Indexed: 04/12/2024] Open
Abstract
Purpose This study aims to explore a novel scaffold for osteotendinous junction regeneration and to preliminarily verify its osteogenic and tenogenic abilities in vitro. Methods A polycaprolactone (PCL) scaffold with aligned and orthogonal fibers was created using melt electrowriting (MEW) and fused deposition modeling (FDM). The scaffold was coated with Type I collagen, and hydroxyapatite was carefully added to separate the regions intended for bone and tendon regeneration, before being rolled into a cylindrical shape. Human adipose-derived stem cells (hADSCs) were seeded to evaluate viability and differentiation. Scaffold characterization was performed with Scanning Electron Microscope (SEM). Osteogenesis was assessed by alkaline phosphatase (ALP) and Alizarin red staining, while immunostaining and transcription-quantitative polymerase chain reaction (RT-qPCR) evaluated osteogenic and tendogenic markers. Results Scaffolds were developed in four variations: aligned (A), collagen-coated aligned (A+C), orthogonal (O), and mineral-coated orthogonal (O+M). SEM analysis confirmed surface morphology and energy-dispersive X-ray spectroscopy (EDS) verified mineral coating on O+M types. Hydrophilicity and mechanical properties were optimized in modified scaffolds, with A+C showing increased tensile strength and O+M improved in compression. hADSCs demonstrated good viability and morphology across scaffolds, withO+M scaffolds showing higher cell proliferation and osteogenic potential, and A and A+C scaffolds supporting tenogenic differentiation. Conclusion This study confirms the potential of a novel PCL scaffold with distinct regions for osteogenic and tenogenic differentiation, supporting the regeneration of osteotendinous junctions in vitro.
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Affiliation(s)
- Shengshan Ma
- Department of Orthopedic Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, People’s Republic of China
- Department of Sports Medicine, Lianyungang Clinical College of Nanjing Medical University, Lianyungang, Jiangsu, People’s Republic of China
| | - Suyang Zheng
- Department of Orthopedic Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, People’s Republic of China
| | - Dong Li
- Department of Trauma Center, The Affiliated Changzhou No.2 People’s Hospital of Nanjing Medical University, Changzhou, Jiangsu, People’s Republic of China
| | - Wenhao Hu
- Department of Orthopedic Surgery, The Affiliated Huai’an No.1 People’s Hospital of Nanjing Medical University, Huai’an, Jiangsu, People’s Republic of China
| | - Liming Wang
- Department of Orthopedic Surgery, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, People’s Republic of China
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Ma Q, Wang X, Feng B, Liang C, Wan X, El-Newehy M, Abdulhameed MM, Mo X, Wu J. Fiber configuration determines foreign body response of electrospun scaffolds: in vitroand in vivoassessments. Biomed Mater 2024; 19:025007. [PMID: 38194703 DOI: 10.1088/1748-605x/ad1c99] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Accepted: 01/09/2024] [Indexed: 01/11/2024]
Abstract
Biomaterial scaffolds boost tissue repair and regeneration by providing physical support, delivering biological signals and/or cells, and recruiting endogenous cells to facilitate tissue-material integration and remodeling. Foreign body response (FBR), an innate immune response that occurs immediately after biomaterial implantation, is a critical factor in determining the biological outcomes of biomaterial scaffolds. Electrospinning is of great simplicity and cost-effectiveness to produce nanofiber scaffolds with well-defined physicochemical properties and has been used in a variety of regenerative medicine applications in preclinical trials and clinical practice. A deep understanding of causal factors between material properties and FBR of host tissues is beneficial to the optimal design of electrospun scaffolds with favorable immunomodulatory properties. We herein prepared and characterized three electrospun scaffolds with distinct fiber configurations and investigated their effects on FBR in terms of immune cell-material interactions and host responses. Our results show that electrospun yarn scaffold results in greater cellular immune reactions and elevated FBR inin vivoassessments. Although the yarn scaffold showed aligned fiber bundles, it failed to induce cell elongation of macrophages due to its rough surface and porous grooves between yarns. In contrast, the aligned scaffold showed reduced FBR compared to the yarn scaffold, indicating a smooth surface is also a contributor to the immunomodulatory effects of the aligned scaffold. Our study suggests that balanced porousness and smooth surface of aligned fibers or yarns should be the key design parameters of electrospun scaffolds to modulate host responsein vivo.
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Affiliation(s)
- Qiaolin Ma
- Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, Department of Biomedical Engineering, Donghua University, Shanghai 201620, People's Republic of China
| | - Xiaoyi Wang
- Core Facility Center, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, People's Republic of China
| | - Bei Feng
- Heart Center and Shanghai Institute of Pediatric Congenital Heart Disease, Shanghai Children's Medical Center, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, People's Republic of China
| | - Chao Liang
- Department of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, People's Republic of China
| | - Xinjian Wan
- Digestive Endoscopic Center, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, People's Republic of China
| | - Mohamed El-Newehy
- Department of Chemistry, College of Science, King Saud University, PO Box 2455, Riyadh 11451, Saudi Arabia
| | - Meera Moydeen Abdulhameed
- Department of Chemistry, College of Science, King Saud University, PO Box 2455, Riyadh 11451, Saudi Arabia
| | - Xiumei Mo
- Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, Department of Biomedical Engineering, Donghua University, Shanghai 201620, People's Republic of China
| | - Jinglei Wu
- Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, Department of Biomedical Engineering, Donghua University, Shanghai 201620, People's Republic of China
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Chernonosova V, Khlebnikova M, Popova V, Starostina E, Kiseleva E, Chelobanov B, Kvon R, Dmitrienko E, Laktionov P. Electrospun Scaffolds Enriched with Nanoparticle-Associated DNA: General Properties, DNA Release and Cell Transfection. Polymers (Basel) 2023; 15:3202. [PMID: 37571096 PMCID: PMC10421399 DOI: 10.3390/polym15153202] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 07/25/2023] [Accepted: 07/26/2023] [Indexed: 08/13/2023] Open
Abstract
Biomaterial-mediated, spatially localized gene delivery is important for the development of cell-populated scaffolds used in tissue engineering. Cells adhering to or penetrating into such a scaffold are to be transfected with a preloaded gene that induces the production of secreted proteins or cell reprogramming. In the present study, we produced silica nanoparticles-associated pDNA and electrospun scaffolds loaded with such nanoparticles, and studied the release of pDNA from scaffolds and cell-to-scaffold interactions in terms of cell viability and pDNA transfection efficacy. The pDNA-coated nanoparticles were characterized with dynamic light scattering and transmission electron microscopy. Particle sizes ranging from 56 to 78 nm were indicative of their potential for cell transfection. The scaffolds were characterized using scanning electron microscopy, X-ray photoelectron spectroscopy, stress-loading tests and interaction with HEK293T cells. It was found that the properties of materials and the pDNA released vary, depending on the scaffold's composition. The scaffolds loaded with pDNA-nanoparticles do not have a pronounced cytotoxic effect, and can be recommended for cell transfection. It was found that (pDNA-NPs) + PEI9-loaded scaffold demonstrates good potential for cell transfection. Thus, electrospun scaffolds suitable for the transfection of inhabiting cells are eligible for use in tissue engineering.
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Affiliation(s)
- Vera Chernonosova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia; (M.K.); (V.P.); (B.C.); (E.D.)
| | - Marianna Khlebnikova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia; (M.K.); (V.P.); (B.C.); (E.D.)
| | - Victoriya Popova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia; (M.K.); (V.P.); (B.C.); (E.D.)
| | - Ekaterina Starostina
- State Research Center of Virology and Biotechnology VECTOR, Rospotrebnadzor, 630559 Koltsovo, Russia;
| | - Elena Kiseleva
- Institute of Cytology and Genetics, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia;
| | - Boris Chelobanov
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia; (M.K.); (V.P.); (B.C.); (E.D.)
| | - Ren Kvon
- Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia;
| | - Elena Dmitrienko
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia; (M.K.); (V.P.); (B.C.); (E.D.)
| | - Pavel Laktionov
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia; (M.K.); (V.P.); (B.C.); (E.D.)
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Ruocco G, Zoso A, Mortati L, Carmagnola I, Chiono V. Biomimetic Electrospun Scaffold-Based In Vitro Model Resembling the Hallmarks of Human Myocardial Fibrotic Tissue. ACS Biomater Sci Eng 2023. [PMID: 37289177 DOI: 10.1021/acsbiomaterials.3c00483] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Adverse remodeling post-myocardial infarction is hallmarked by the phenotypic change of cardiac fibroblasts (CFs) into myofibroblasts (MyoFs) and over-deposition of the fibrotic extracellular matrix (ECM) mainly composed by fibronectin and collagens, with the loss of tissue anisotropy and tissue stiffening. Reversing cardiac fibrosis represents a key challenge in cardiac regenerative medicine. Reliable in vitro models of human cardiac fibrotic tissue could be useful for preclinical testing of new advanced therapies, addressing the limited predictivity of traditional 2D cell cultures and animal in vivo models. In this work, we engineered a biomimetic in vitro model, reproducing the morphological, mechanical, and chemical cues of native cardiac fibrotic tissue. Polycaprolactone (PCL)-based scaffolds with randomly oriented fibers were fabricated by solution electrospinning technique, showing homogeneous nanofibers with an average size of 131 ± 39 nm. PCL scaffolds were then surface-functionalized with human type I collagen (C1) and fibronectin (F) by dihydroxyphenylalanine (DOPA)-mediated mussel-inspired approach (PCL/polyDOPA/C1F), in order to mimic fibrotic cardiac tissue-like ECM composition and support human CF culture. BCA assay confirmed the successful deposition of the biomimetic coating and its stability during 5 days of incubation in phosphate-buffered saline. Immunostaining for C1 and F demonstrated their homogeneous distribution in the coating. AFM mechanical characterization showed that PCL/polyDOPA/C1F scaffolds, in wet conditions, resembled fibrotic tissue stiffness with an average Young's modulus of about 50 kPa. PCL/polyDOPA/C1F membranes supported human CF (HCF) adhesion and proliferation. Immunostaining for α-SMA and quantification of α-SMA-positive cells showed HCF activation into MyoFs in the absence of a transforming growth factor β (TGF-β) profibrotic stimulus, suggesting the intrinsic ability of biomimetic PCL/polyDOPA/C1F scaffolds to sustain the development of cardiac fibrotic tissue. A proof-of-concept study making use of a commercially available antifibrotic drug confirmed the potentialities of the developed in vitro model for drug efficacy testing. In conclusion, the proposed model was able to replicate the main hallmarks of early-stage cardiac fibrosis, appearing as a promising tool for future preclinical testing of advanced regenerative therapies.
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Affiliation(s)
- Gerardina Ruocco
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, 10129 Torino TO, Italy
- POLITO Biomedlab, Politecnico di Torino, 10129 Torino TO, Italy
- Interuniversity Center for the Promotion of the 3Rs Principles in Teaching and Research, 56122 Pisa PI, Italy
| | - Alice Zoso
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, 10129 Torino TO, Italy
- POLITO Biomedlab, Politecnico di Torino, 10129 Torino TO, Italy
- Interuniversity Center for the Promotion of the 3Rs Principles in Teaching and Research, 56122 Pisa PI, Italy
| | - Leonardo Mortati
- Istituto Nazionale di Ricerca Metrologica (INRIM), 10135 Torino TO, Italy
| | - Irene Carmagnola
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, 10129 Torino TO, Italy
- POLITO Biomedlab, Politecnico di Torino, 10129 Torino TO, Italy
- Interuniversity Center for the Promotion of the 3Rs Principles in Teaching and Research, 56122 Pisa PI, Italy
| | - Valeria Chiono
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, 10129 Torino TO, Italy
- POLITO Biomedlab, Politecnico di Torino, 10129 Torino TO, Italy
- Interuniversity Center for the Promotion of the 3Rs Principles in Teaching and Research, 56122 Pisa PI, Italy
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Chernonosova VS, Kuzmin IE, Shundrina IK, Korobeynikov MV, Golyshev VM, Chelobanov BP, Laktionov PP. Effect of Sterilization Methods on Electrospun Scaffolds Produced from Blend of Polyurethane with Gelatin. J Funct Biomater 2023; 14:jfb14020070. [PMID: 36826869 PMCID: PMC9959520 DOI: 10.3390/jfb14020070] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 01/24/2023] [Accepted: 01/26/2023] [Indexed: 01/31/2023] Open
Abstract
Fibrous polyurethane-based scaffolds have proven to be promising materials for the tissue engineering of implanted medical devices. Sterilization of such materials and medical devices is an absolutely essential step toward their medical application. In the presented work, we studied the effects of two sterilization methods (ethylene oxide treatment and electron beam irradiation) on the fibrous scaffolds produced from a polyurethane-gelatin blend. Scaffold structure and properties were studied by scanning electron microscopy (SEM), atomic force microscopy (AFM), infrared spectroscopy (FTIR), a stress-loading test, and a cell viability test with human fibroblasts. Treatment of fibrous polyurethane-based materials with ethylene oxide caused significant changes in their structure (formation of glued-like structures, increase in fiber diameter, and decrease in pore size) and mechanical properties (20% growth of the tensile strength, 30% decline of the maximal elongation). All sterilization procedures did not induce any cytotoxic effects or impede the biocompatibility of scaffolds. The obtained data determined electron beam irradiation to be a recommended sterilization method for electrospun medical devices made from polyurethane-gelatin blends.
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Affiliation(s)
- Vera S. Chernonosova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia
- Correspondence: (V.S.C.); (P.P.L.); Tel.: +7-(383)-363-51-44 (V.S.C. & P.P.L.)
| | - Ilya E. Kuzmin
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia
| | - Inna K. Shundrina
- Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia
| | - Mikhail V. Korobeynikov
- Budker Institute of Nuclear Physics, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia
| | - Victor M. Golyshev
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia
| | - Boris P. Chelobanov
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia
| | - Pavel P. Laktionov
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia
- Correspondence: (V.S.C.); (P.P.L.); Tel.: +7-(383)-363-51-44 (V.S.C. & P.P.L.)
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Bar JK, Kowalczyk T, Grelewski PG, Stamnitz S, Paprocka M, Lis J, Lis-Nawara A, An S, Klimczak A. Characterization of Biological Properties of Dental Pulp Stem Cells Grown on an Electrospun Poly(l-lactide- co-caprolactone) Scaffold. Materials (Basel) 2022; 15:1900. [PMID: 35269131 DOI: 10.3390/ma15051900] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 02/15/2022] [Accepted: 03/01/2022] [Indexed: 02/01/2023]
Abstract
Poly(l-lactide-co-caprolactone) (PLCL) electrospun scaffolds with seeded stem cells have drawn great interest in tissue engineering. This study investigated the biological behavior of human dental pulp stem cells (hDPSCs) grown on a hydrolytically-modified PLCL nanofiber scaffold. The hDPSCs were seeded on PLCL, and their biological features such as viability, proliferation, adhesion, population doubling time, the immunophenotype of hDPSCs and osteogenic differentiation capacity were evaluated on scaffolds. The results showed that the PLCL scaffold significantly supported hDPSC viability/proliferation. The hDPSCs adhesion rate and spreading onto PLCL increased with time of culture. hDPSCs were able to migrate inside the PLCL electrospun scaffold after 7 days of seeding. No differences in morphology and immunophenotype of hDPSCs grown on PLCL and in flasks were observed. The mRNA levels of bone-related genes and their proteins were significantly higher in hDPSCs after osteogenic differentiation on PLCL compared with undifferentiated hDPSCs on PLCL. These results showed that the mechanical properties of a modified PLCL mat provide an appropriate environment that supports hDPSCs attachment, proliferation, migration and their osteogenic differentiation on the PLCL scaffold. The good PLCL biocompatibility with dental pulp stem cells indicates that this mat may be applied in designing a bioactive hDPSCs/PLCL construct for bone tissue engineering.
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Wu R, Gao G, Zhang S, Liu R, Dong H, Xu Y. BMP-2 Modified Electrospun Scaffold for Acetabular Labral Reconstruction Promotes Collagen Fiber Regeneration in a Porcine Model. Am J Sports Med 2022; 50:757-768. [PMID: 35112595 DOI: 10.1177/03635465211066948] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Acetabular labral tear is one of the contributing factors to early hip osteoarthritis. Patients with symptomatic labral tears may require surgical treatment, and labral reconstruction is indicated in cases of irreparable tears. PURPOSE The purpose of the study was to construct the bone morphogenic protein 2 (BMP-2) electrospun scaffold for acetabular labral reconstruction and analyze the composition of the labrum and the influence of collagen fiber distribution in regenerated tissue on the biomechanical properties of labrum. STUDY DESIGN Controlled laboratory study. METHODS Eighteen mature male miniature pigs were selected for labral reconstruction in vivo. The animals were divided into 3 groups, including the autologous tendon group (T group), dopamine/polylactic acid-polyethylene glycol (PELA) electrospun group (DP group), and dopamine/PELA electrospun/BMP-2 group (DPB group), and the native labra were used as the control group. The microstructure of the reconstructed labrum was analyzed by scanning electron microscopy. Histologic and immunohistochemistry sections were used to evaluate the composition and structure of reconstructed labrum. The related gene expression was tested via quantitative reverse transcriptase-polymerase chain reaction test. The compressive and tensile properties of tissues were evaluated using the elasticity test device. RESULTS Hematoxylin and eosin staining showed that the DP group and the T group were mainly composed of fibroblasts. The alignment of fibers was irregular. In the DPB group, the reconstructed tissues were composed of fibroblasts and chondrocytes, with parallel fibers and denser structure. The native labrum was composed of a large number of fibroblasts, which were arranged orderly and parallel, and there was almost no vascular proliferation. Under scanning electron microscopy, the reconstructed tissue of the DBP group was more similar to the native labral structure, forming a denser, clear-layered collagen fibrous structure, while the fiber alignment of the DP and T groups was irregular. The contents of type I, II, and III collagen (COL1, COL2, and COL3, respectively) were upregulated in labrum reconstructed with the DPB scaffold, while the gene expressions did not increase in the DP and T groups. The tensile and compressive properties of the implants in the DPB group were significantly enhanced. CONCLUSION BMP-2 modified electrospun scaffold promotes collagen regeneration and osteogenic differentiation and is associated with better biomechanical performance of the reconstructed labrum. CLINICAL RELEVANCE This study demonstrated that BMP-2 modified electrospun scaffold could induce the regeneration of collagen and osteogenic differentiation and provide better biomechanical performance in labral reconstruction. This scaffold could be used in clinical practice after further improvement.
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Affiliation(s)
- Ruiqi Wu
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing Key Laboratory of Sports Injuries, Beijing, China
| | - Guanying Gao
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing Key Laboratory of Sports Injuries, Beijing, China
| | - Siqi Zhang
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing Key Laboratory of Sports Injuries, Beijing, China
| | - Rongge Liu
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing Key Laboratory of Sports Injuries, Beijing, China
| | - Hanmei Dong
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing Key Laboratory of Sports Injuries, Beijing, China
| | - Yan Xu
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing Key Laboratory of Sports Injuries, Beijing, China
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Behtaj S, St John JA, Ekberg JAK, Rybachuk M. Neuron-fibrous scaffold interfaces in the peripheral nervous system: a perspective on the structural requirements. Neural Regen Res 2022; 17:1893-1897. [PMID: 35142664 PMCID: PMC8848624 DOI: 10.4103/1673-5374.329003] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [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] [Indexed: 12/01/2022] Open
Abstract
The nerves of the peripheral nervous system are not able to effectively regenerate in cases of severe neural injury. This can result in debilitating consequences, including morbidity and lifelong impairments affecting the quality of the patient’s life. Recent findings in neural tissue engineering have opened promising avenues to apply fibrous tissue-engineered scaffolds to promote tissue regeneration and functional recovery. These scaffolds, known as neural scaffolds, are able to improve neural regeneration by playing two major roles, namely, by being a carrier for transplanted peripheral nervous system cells or biological cues and by providing structural support to direct growing nerve fibers towards the target area. However, successful implementation of scaffold-based therapeutic approaches calls for an appropriate design of the neural scaffold structure that is capable of up- and down-regulation of neuron-scaffold interactions in the extracellular matrix environment. This review discusses the main challenges that need to be addressed to develop and apply fibrous tissue-engineered scaffolds in clinical practice. It describes some promising solutions that, so far, have shown to promote neural cell adhesion and growth and a potential to repair peripheral nervous system injuries.
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Affiliation(s)
- Sanaz Behtaj
- Clem Jones Centre for Neurobiology and Stem Cell Research, Griffith University, Queensland; Menzies Health Institute Queensland, Griffith University, Southport, Australia
| | - James A St John
- Clem Jones Centre for Neurobiology and Stem Cell Research, Griffith University, Queensland; Menzies Health Institute Queensland, Griffith University, Southport; Griffith Institute for Drug Discovery, Nathan, Australia
| | - Jenny A K Ekberg
- Clem Jones Centre for Neurobiology and Stem Cell Research, Griffith University, Queensland; Menzies Health Institute Queensland, Griffith University, Southport; Griffith Institute for Drug Discovery, Nathan, Australia
| | - Maksym Rybachuk
- School of Engineering and Built Environment; Centre for Quantum Dynamics and Australian Attosecond Science Facility, Griffith University, Nathan, Australia
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Hogan KJ, Smoak MM, Koons GL, Perez MR, Bedell ML, Jiang EY, Young S, Mikos AG. Bioinspired electrospun decellularized extracellular matrix scaffolds promote muscle regeneration in a rat skeletal muscle defect model. J Biomed Mater Res A 2022; 110:1090-1100. [PMID: 34989128 DOI: 10.1002/jbm.a.37355] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 12/23/2021] [Accepted: 12/29/2021] [Indexed: 01/13/2023]
Abstract
Volumetric muscle loss is a debilitating injury that can leave patients with long-lasting or permanent structural and functional deficits. With clinical treatments failing to address these shortcomings, there is a great need for tissue-engineered therapies to promote skeletal muscle regeneration. In this study, we aim to assess the potential for electrospun decellularized skeletal muscle extracellular matrix (dECM) to promote skeletal muscle regeneration in a rat partial thickness tibialis anterior defect model. Aligned electrospun scaffolds with varying degrees of crosslinking density were implanted into the defect site and compared to an empty defect control. After 8 weeks, muscles were harvested, weighed, and cellular and morphological analyses were performed via histology and immunohistochemistry. Cell infiltration, angiogenesis, and myogenesis were observed in the defect site in both dECM groups. However, favorable mechanical properties and slower degradation kinetics resulted in greater support of tissue remodeling in the more crosslinked scaffolds and preservation of existing myofiber area in both dECM groups compared to the empty defect control. More sustained release of pro-regenerative degradation products also promoted greater myofiber formation in the defect site. This study allowed for a greater understanding of how electrospun skeletal muscle scaffolds interact with existing skeletal muscle and can inform their potential as a therapy in a wide variety of soft tissue applications.
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Affiliation(s)
- Katie J Hogan
- Department of Bioengineering, Rice University, Houston, Texas, USA
| | - Mollie M Smoak
- Department of Bioengineering, Rice University, Houston, Texas, USA
| | - Gerry L Koons
- Department of Bioengineering, Rice University, Houston, Texas, USA
| | - Marissa R Perez
- Department of Bioengineering, Rice University, Houston, Texas, USA
| | - Matthew L Bedell
- Department of Bioengineering, Rice University, Houston, Texas, USA
| | - Emily Y Jiang
- Department of Bioengineering, Rice University, Houston, Texas, USA
| | - Simon Young
- Department of Bioengineering, Rice University, Houston, Texas, USA.,Department of Oral & Maxillofacial Surgery, The University of Texas Health Science Center at Houston, School of Dentistry, Houston, Texas, USA
| | - Antonios G Mikos
- Department of Bioengineering, Rice University, Houston, Texas, USA
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Lopez Marquez A, Gareis IE, Dias FJ, Gerhard C, Lezcano MF. How Fiber Surface Topography Affects Interactions between Cells and Electrospun Scaffolds: A Systematic Review. Polymers (Basel) 2022; 14:polym14010209. [PMID: 35012232 PMCID: PMC8747153 DOI: 10.3390/polym14010209] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [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: 12/01/2021] [Revised: 12/22/2021] [Accepted: 12/29/2021] [Indexed: 01/02/2023] Open
Abstract
Electrospun scaffolds have a 3D fibrous structure that attempts to imitate the extracellular matrix in order to be able to host cells. It has been reported in the literature that controlling fiber surface topography produces varying results regarding cell–scaffold interactions. This review analyzes the relevant literature concerning in vitro studies to provide a better understanding of the effect that controlling fiber surface topography has on cell–scaffold interactions. A systematic approach following PRISMA, GRADE, PICO, and other standard methodological frameworks for systematic reviews was used. Different topographic interventions and their effects on cell–scaffold interactions were analyzed. Results indicate that nanopores and roughness on fiber surfaces seem to improve proliferation and adhesion of cells. The quality of the evidence is different for each studied cell–scaffold interaction, and for each studied morphological attribute. The evidence points to improvements in cell–scaffold interactions on most morphologically complex fiber surfaces. The discussion includes an in-depth evaluation of the indirectness of the evidence, as well as the potentially involved publication bias. Insights and suggestions about dose-dependency relationship, as well as the effect on particular cell and polymer types, are presented. It is concluded that topographical alterations to the fiber surface should be further studied, since results so far are promising.
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Affiliation(s)
- Alex Lopez Marquez
- Faculty of Engineering and Health, University of Applied Sciences and Arts, 37085 Göttingen, Germany; (A.L.M.); (C.G.)
| | - Iván Emilio Gareis
- Laboratorio de Cibernética, Departamento de Bioingeniería, Facultad de Ingeniería, Universidad Nacional de Entre Ríos, Oro Verde 3100, Argentina;
| | - Fernando José Dias
- Research Centre for Dental Sciences CICO, Department of Integral Adults Dentistry, Dental School, Universidad de La Frontera, Temuco 4811230, Chile;
| | - Christoph Gerhard
- Faculty of Engineering and Health, University of Applied Sciences and Arts, 37085 Göttingen, Germany; (A.L.M.); (C.G.)
| | - María Florencia Lezcano
- Laboratorio de Cibernética, Departamento de Bioingeniería, Facultad de Ingeniería, Universidad Nacional de Entre Ríos, Oro Verde 3100, Argentina;
- Research Centre for Dental Sciences CICO, Department of Integral Adults Dentistry, Dental School, Universidad de La Frontera, Temuco 4811230, Chile;
- Correspondence:
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11
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Albukhaty S, Al-Karagoly H, Allafchian AR, Jalali SAH, Al-Kelabi T, Muhannad M. Production and characterization of biocompatible nanofibrous scaffolds made of β- sitosterolloaded polyvinyl alcohol/tragacanth gum composites. Nanotechnology 2021; 33:085102. [PMID: 34749350 DOI: 10.1088/1361-6528/ac3789] [Citation(s) in RCA: 6] [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] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 11/08/2021] [Indexed: 06/13/2023]
Abstract
Electrospun polyvinyl alcohol (PVA) and tragacanth gum (TG) were used to develop nanofibrous scaffolds containing poorly water-solubleβ-Sitosterol (β-S). Different concentrations and ratios of the polymeric composite includingβ-S (10% w v-1) in PVA (8% w v-1) combined with TG (0.5 and 1% w v-1) were prepared and electrospun. The synthesis method includes four electrospinning parameters of solution concentration, feeding rate, voltage, and distance of the collector to the tip of the needle, which are independently optimized to achieve uniform nanofibers with a desirable mean diameter for cell culture. The collected nanofibers were characterized by SEM, FTIR, and XRD measurements. A contact angle measurement described the hydrophilicity of the scaffold. MTT test was carried out on the obtained nanofibers containing L929 normal fibroblast cells. The mechanical strength, porosity, and deterioration of the scaffolds were well discussed. The mean nanofiber diameters ranged from 63 ± 20 nm to 97 ± 46 nm. The nanofibers loaded withβ-S were freely soluble in water and displayed a remarkable biocompatible nature. The cultured cells illustrated sheet-like stretched growth morphology and penetrated the nanofibrous pores of the PVA/β-S/TG scaffolds. The dissolution was related to submicron-level recrystallization ofβ-S with sufficient conditions for culturing L929 cells. It was concluded that electrospinning is a promising technique for poorly water-solubleβ-S formulations that could be used in biomedical applications.
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Affiliation(s)
- Salim Albukhaty
- Department of Basic Sciences, University of Misan, Maysan 62001, Iraq
| | - Hassan Al-Karagoly
- Department of Internal and Preventive Medicine, Veterinary Medicine College, University of Al-Qadisiyah, Diwaniyah 58002, Iraq
| | - Ali Reza Allafchian
- Research Institute for Nanotechnology and Advanced Materials, Isfahan University of Technology, Isfahan 84156-83111, Iran
- Research Institute for Biotechnology and Bioengineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - Seyed Amir Hossein Jalali
- Research Institute for Biotechnology and Bioengineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
- Department of Natural Resources, Isfahan University of Technology, Isfahan 84156-83111, Iran
| | - Thair Al-Kelabi
- Directorate of Military Medical Affairs, Ministry of Defense, Baghdad, Iraq
| | - Mustafa Muhannad
- Department of Natural Resources, Isfahan University of Technology, Isfahan 84156-83111, Iran
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12
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Li H, Wang X, Liu J, Liu Z, Wang H, Mo X, Wu J. Nanofiber configuration affects biological performance of decellularized meniscus extracellular matrix incorporated electrospun scaffolds. Biomed Mater 2021; 16. [PMID: 34547733 DOI: 10.1088/1748-605x/ac28a5] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [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: 04/27/2021] [Accepted: 09/21/2021] [Indexed: 01/13/2023]
Abstract
Electrospinning represents the simplest approach to fabricate nanofiber scaffolds that approximate the heterogeneous fibrous structure of the meniscus. More effort is needed to understand the relationship between scaffold properties and cell responses to determine the appropriate scaffolds supporting meniscus tissue repair and regeneration. In this study, we investigate the influence of nanofiber configuration of electrospun scaffolds on phenotype and matrix production of meniscus cells, as well as on scaffold degradation behaviors and biocompatibility. Twisting electrospun nanofibers into yarns not only recapitulates the major collagen bundles of the meniscus but also increases the pore size and porosity of resultant scaffolds. The yarn scaffold significantly regulated expression levels of meniscus-associated genes and promoted extracellular matrix production compared with conventional electrospun scaffolds with random or aligned nanofiber orientation. Additionally, the yarn scaffold allowed considerable cell infiltration and experienced faster degradation and tissue remodeling upon subcutaneous implantation in a rat model. These results suggest that nanofiber configuration dictates cell interactions, scaffold degradation and integration with host tissue, providing design parameters of porosity and pore size of electrospun scaffolds toward meniscus repair.
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Affiliation(s)
- Haiyan Li
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education & Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
| | - Xiaoyu Wang
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education & Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
| | - Jiajie Liu
- Department of Hernia and Abdominal Wall Surgery, Shanghai East Hospital, TongJi University, Shanghai 200120, People's Republic of China
| | - Zhengni Liu
- Department of Hernia and Abdominal Wall Surgery, Shanghai East Hospital, TongJi University, Shanghai 200120, People's Republic of China
| | - Hongsheng Wang
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education & Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
| | - Xiumei Mo
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education & Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
| | - Jinglei Wu
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education & Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
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13
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Dabasinskaite L, Krugly E, Baniukaitiene O, Martuzevicius D, Ciuzas D, Jankauskaite L, Aukstikalne L, Usas A. The Effect of Ozone Treatment on the Physicochemical Properties and Biocompatibility of Electrospun Poly(ε)caprolactone Scaffolds. Pharmaceutics 2021; 13:1288. [PMID: 34452249 PMCID: PMC8400338 DOI: 10.3390/pharmaceutics13081288] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 07/26/2021] [Accepted: 08/14/2021] [Indexed: 12/05/2022] Open
Abstract
Ozonation has been proved as a viable surface modification technique providing certain properties to the scaffolds that are essential in tissue engineering. However, the ozone (O3) treatment of PCL scaffolds in aqueous environments has not yet been presented. O3 treatment performed in aqueous environments is more effective compared with traditional, executed in ambient air treatment due to more abundant production of hydroxyl radicals (•OH) within the O3 reaction with water molecules. During interaction with •OH, the scaffold acquires functional groups which improve wettability properties and encapsulate growth factors. In this study, a poly(ε)caprolactone (PCL) scaffold was fabricated using solution electrospinning and was subsequently ozonated in a water reactor. The O3 treatment resulted in the expected occurrence of oxygen-containing functional groups, which improved scaffold wettability by almost 27% and enhanced cell proliferation for up to 14 days. The PCL scaffold was able to withhold 120 min of O3 treatment, maintaining fibrous morphology and mechanical properties.
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Affiliation(s)
- Lauryna Dabasinskaite
- Department of Environmental Technology, Kaunas University of Technology, LT-50254 Kaunas, Lithuania; (E.K.); (D.M.); (D.C.)
| | - Edvinas Krugly
- Department of Environmental Technology, Kaunas University of Technology, LT-50254 Kaunas, Lithuania; (E.K.); (D.M.); (D.C.)
| | - Odeta Baniukaitiene
- Department of Polymer Chemistry and Technology, Kaunas University of Technology, LT-50254 Kaunas, Lithuania;
| | - Dainius Martuzevicius
- Department of Environmental Technology, Kaunas University of Technology, LT-50254 Kaunas, Lithuania; (E.K.); (D.M.); (D.C.)
| | - Darius Ciuzas
- Department of Environmental Technology, Kaunas University of Technology, LT-50254 Kaunas, Lithuania; (E.K.); (D.M.); (D.C.)
| | - Lina Jankauskaite
- Faculty of Medicine, Institute of Physiology and Pharmacology, Lithuanian University of Health Sciences, LT-44307 Kaunas, Lithuania; (L.J.); (L.A.); (A.U.)
| | - Lauryna Aukstikalne
- Faculty of Medicine, Institute of Physiology and Pharmacology, Lithuanian University of Health Sciences, LT-44307 Kaunas, Lithuania; (L.J.); (L.A.); (A.U.)
| | - Arvydas Usas
- Faculty of Medicine, Institute of Physiology and Pharmacology, Lithuanian University of Health Sciences, LT-44307 Kaunas, Lithuania; (L.J.); (L.A.); (A.U.)
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14
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Ziaei Amiri F, Pashandi Z, Lotfibakhshaiesh N, Mirzaei-Parsa MJ, Ghanbari H, Faridi-Majidi R. Cell attachment effects of collagen nanoparticles on crosslinked electrospun nanofibers. Int J Artif Organs 2020; 44:199-207. [PMID: 32807005 DOI: 10.1177/0391398820947737] [Citation(s) in RCA: 4] [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] [Indexed: 02/02/2023]
Abstract
Since collagen is naturally a main extracellular matrix protein, it has been applied widely in skin's tissue engineering scaffolds to mimics the characteristics of extracellular matrix for proper transplantation of living cells. However, there are challenges that come with application of this natural polymer such as high solubility in aqueous environments which requires further consideration such as chemically cross-linking in order to stabilization. But these treatments also affect its functionality and finally cellular behaviors on scaffold. In this research we evaluated the suitability of collagen nanofibers versus collagen nanoparticles for cell adhesion and viability on glutaraldehyde cross-linked scaffolds. Appling a dual-pump electrospining machine a blend PCL-Gelatin from one side and collagen nanofibers or collagen nanoparticles from the other side were collected on the collector. The fabricated scaffolds were characterized by scanning electron microscopy, contact angle, and mechanical analysis. The cell viability, adhesion and morphology were studied respectively using MTT assay, hoechst staining and scanning electron microscopy. The results indicated significantly improvement of cell viability, adhesion and better spreading on scaffolds with collagen nanoparticles than collagen nanofibers. It seems changes in surface morphology, viscoelastic moduli and swelling ability following cross-linking with glutaraldehyde in scaffold with collagen nanoparticles are still favorable for cellular proliferation. Based on these results, in the case of glutaraldehyde cross-linking, application of collagen nanoparticles rather than collagen nanofibers in tissue regeneration scaffolds will better mimic the extracellular matrix characteristics; and preserve the viability and adhesion of seeded cells.
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Affiliation(s)
- Fereshteh Ziaei Amiri
- Department of Medical Nanotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Zaiddodine Pashandi
- Department of Medical Nanotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Nasrin Lotfibakhshaiesh
- Department of Tissue Engineering and Applied Sciences, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohamad Javad Mirzaei-Parsa
- Department of Medical Nanotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Hossein Ghanbari
- Department of Medical Nanotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Reza Faridi-Majidi
- Department of Medical Nanotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
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15
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Ashinsky BG, Gullbrand SE, Bonnevie ED, Wang C, Kim DH, Han L, Mauck RL, Smith HE. Sacrificial Fibers Improve Matrix Distribution and Micromechanical Properties in a Tissue-Engineered Intervertebral Disc. Acta Biomater 2020; 111:232-241. [PMID: 32447064 DOI: 10.1016/j.actbio.2020.05.019] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 05/13/2020] [Accepted: 05/14/2020] [Indexed: 12/19/2022]
Abstract
Tissue-engineered replacement discs are an area of intense investigation for the treatment of end-stage intervertebral disc (IVD) degeneration. These living implants can integrate into the IVD space and recapitulate native motion segment function. We recently developed a multiphasic tissue-engineered disc-like angle-ply structure (DAPS) that models the micro-architectural and functional features of native tissue. While these implants resulted in functional restoration of the motion segment in rat and caprine models, we also noted deficiencies in cell infiltration and homogeneity of matrix deposition in the electrospun poly(ε-caprolactone) outer region (annulus fibrosus, AF) of the DAPS. To address this limitation, here, we incorporated a sacrificial water-soluble polymer, polyethylene oxide (PEO), as a second fiber fraction within the AF region to increase porosity of the implant. Maturation of these PEO-modified DAPS were evaluated after 5 and 10 weeks of in vitro culture in terms of AF biochemical content, MRI T2 values, overall construct mechanical properties, AF micromechanical properties and cell and matrix distribution. To assess the performance of the PEO-modified DAPS in vivo, precultured constructs were implanted into the rat caudal IVD space for 10 weeks. Results showed that matrix distribution was more homogenous in PCL/PEO DAPS, as evidenced by more robust histological staining, organized collagen deposition and micromechanical properties, compared to standard PCL-only DAPS in vitro. Cell and matrix infiltration were also improved in vivo, but no differences in macromechanical properties and a trend towards improved micromechanical properties were observed. These findings demonstrate that the inclusion of a sacrificial PEO fiber fraction in the DAPS AF region improves cellular colonization, matrix elaboration, and in vitro and in vivo function of an engineered IVD implant. STATEMENT OF SIGNIFICANCE: This work establishes a method for improving cell infiltration and matrix distribution within tissue-engineered dense fibrous scaffolds for intervertebral disc replacement. Tissue-engineered whole disc replacements are an attractive alternative to the current gold standard (mechanical disc arthroplasty or vertebral fusion) for the clinical treatment of patients with advanced disc degeneration.
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16
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Semitela Â, Girão AF, Fernandes C, Ramalho G, Bdikin I, Completo A, Marques PA. Electrospinning of bioactive polycaprolactone-gelatin nanofibres with increased pore size for cartilage tissue engineering applications. J Biomater Appl 2020; 35:471-484. [PMID: 32635814 DOI: 10.1177/0885328220940194] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [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: 01/16/2023]
Abstract
Polycaprolactone (PCL) electrospun scaffolds have been widely investigated for cartilage repair application. However, their hydrophobicity and small pore size has been known to prevent cell attachment, proliferation and migration. Here, PCL was blended with gelatin (GEL) combining the favorable biological properties of GEL with the good mechanical performance of the former. Also, polyethylene glycol (PEG) particles were introduced during the electrospinning of the polymers blend by simultaneous electrospraying. These particles were subsequently removed resulting in fibrous scaffolds with enlarged pore size. PCL, GEL and PEG scaffolds formulations were developed and extensively structural and biologically characterized. GEL incorporation on the PCL scaffolds led to a considerably improved cell attachment and proliferation. A substantial pore size and interconnectivity increase was obtained, allowing cell infiltration through the porogenic scaffolds. All together these results suggest that this combined approach may provide a potentially clinically viable strategy for cartilage regeneration.
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Affiliation(s)
- Ângela Semitela
- TEMA, Department of Mechanical Engineering, University of Aveiro, Campus Universitário de Santiago, Aveiro, Portugal
| | - André F Girão
- TEMA, Department of Mechanical Engineering, University of Aveiro, Campus Universitário de Santiago, Aveiro, Portugal
| | - Carla Fernandes
- TEMA, Department of Mechanical Engineering, University of Aveiro, Campus Universitário de Santiago, Aveiro, Portugal
| | - Gonçalo Ramalho
- TEMA, Department of Mechanical Engineering, University of Aveiro, Campus Universitário de Santiago, Aveiro, Portugal
| | - Igor Bdikin
- TEMA, Department of Mechanical Engineering, University of Aveiro, Campus Universitário de Santiago, Aveiro, Portugal
| | - António Completo
- TEMA, Department of Mechanical Engineering, University of Aveiro, Campus Universitário de Santiago, Aveiro, Portugal
| | - Paula Aap Marques
- TEMA, Department of Mechanical Engineering, University of Aveiro, Campus Universitário de Santiago, Aveiro, Portugal
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17
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Tang W, Fang F, Liu K, Huang Z, Li H, Yin Y, Wang J, Wang G, Wei L, Ou Y, Wang Y. Aligned Biofunctional Electrospun PLGA-LysoGM1 Scaffold for Traumatic Brain Injury Repair. ACS Biomater Sci Eng 2020; 6:2209-2218. [PMID: 33455302 DOI: 10.1021/acsbiomaterials.9b01636] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [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: 01/13/2023]
Abstract
Due to poor regenerative capabilities of the brain, a treatment for traumatic brain injury (TBI) presents a serious challenge to modern medicine. Biofunctional scaffolds that can support neuronal growth, guide neurite elongation, and re-establish impaired brain tissues are urgently needed. To this end, we developed an aligned biofunctional scaffold (aPLGA-LysoGM1), in which poly (lactic-co-glycolic acid) (PLGA) was functionalized with sphingolipid ceramide N-deacylase (SCDase)-hydrolyzed monosialotetrahexosylganglioside (LysoGM1) and electrospinning was used to form an aligned fibrous network. As a ganglioside of neuronal membranes, the functionalized LysoGM1 endows the scaffold with unique biological properties favoring the growth of neuron and regeneration of injured brain tissues. Moreover, we found that the aligned PLGA-LysoGM1 fibers acted as a topographical cue to guide neurite extension, which is critical for organizing the formation of synaptic networks (neural networks). Systematic in vitro studies demonstrated that the aligned biofunctional scaffold promotes neuronal viability, neurite outgrowth, and synapse formation and also protects neurons from pressure-related injury. Additionally, in a rat TBI model, we demonstrated that the implantation of aPLGA-LysoGM1 scaffold supported recovery from brain injury, as more endogenous neurons were found to migrate and infiltrate into the defect zone compared with alternative scaffold. These results suggest that the aligned biofunctional aPLGA-LysoGM1 scaffold represents a promising therapeutic strategy for brain tissue regeneration following TBI.
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Affiliation(s)
- Wei Tang
- Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Fei Fang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China
| | - Ke Liu
- Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Zhi Huang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China
| | - Hui Li
- Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Ying Yin
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China
| | - Jun Wang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China
| | - Guocheng Wang
- Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Liyu Wei
- Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Yun Ou
- Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.,Hunan Provincial Key Laboratory of Health Maintenance for Mechanical Equipment, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Yazhou Wang
- School of Medicine, Chongqing University, Chongqing 400044, China.,Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing 400044, China
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18
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Bochicchio B, Barbaro K, De Bonis A, Rau JV, Pepe A. Electrospun poly(d,l-lactide)/gelatin/glass-ceramics tricomponent nanofibrous scaffold for bone tissue engineering. J Biomed Mater Res A 2020; 108:1064-1076. [PMID: 31967393 DOI: 10.1002/jbm.a.36882] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [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: 01/04/2020] [Accepted: 01/06/2020] [Indexed: 12/15/2022]
Abstract
Electrospun scaffolds are emerging as extracellular matrix (ECM)mimicking structures for tissue engineering thanks to their nanofibrous architecture. For the development of suitable electrospun scaffolds for bone tissue engineering, the addition of inorganic components has been implemented with the aim to confer important bioactivity like osteoinduction, osteointegration, and cell adhesion to the scaffolds. In this context, we propose a tricomponent electrospun scaffold composed of poly(d,l-lactide), gelatin and RKKP glass-ceramics. The bioactive RKKP glass-ceramic system has attracted interest, due to the presence of ions such as La3+ and Ta5+ , which turned out to be valuable as growth supporting agents for bones. In this work, RKKP glass-ceramics were embedded inside the microfibers of electrospun scaffolds and the structural and biological properties were investigated. Our results showed that the glass-ceramic microparticles were uniformly distributed in the fibrous structure of the scaffold. Furthermore, the glass-ceramics promoted biomineralization of the scaffolds and improved cell viability and osteogenic differentiation. The mineralized layer formed on RKKP-containing scaffolds after incubation in simulated body fluid medium has been shown to be hydroxyapatite by Raman spectroscopy and X-ray diffraction. The results on differentiation studies of canine adipose-derived mesenchymal stem cells grown on the electrospun scaffolds suggest that on varying the content of RKKP in the scaffold, it is possible to drive the differentiation toward chondrogenic or osteogenic commitment. The presence of ions, like La3+ and Ta5+ , in the RKKP embedded polymeric composite scaffolds could play a role in supporting cell growth and promoting differentiation.
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Affiliation(s)
- Brigida Bochicchio
- Dipartimento di Scienze, Università degli Studi della Basilicata, Potenza, Italy
| | - Katia Barbaro
- Istituto Zooprofilattico Sperimentale del Lazio e della Toscana "M. Aleandri", Rome, Italy
| | - Angela De Bonis
- Dipartimento di Scienze, Università degli Studi della Basilicata, Potenza, Italy
| | - Julietta V Rau
- Istituto di Struttura della Materia, Consiglio Nazionale delle Ricerche (ISM-CNR), Rome, Italy
| | - Antonietta Pepe
- Dipartimento di Scienze, Università degli Studi della Basilicata, Potenza, Italy
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19
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Sadeghianmaryan A, Yazdanpanah Z, Soltani YA, Sardroud HA, Nasirtabrizi MH, Chen X. Curcumin-loaded electrospun polycaprolactone/montmorillonite nanocomposite: wound dressing application with anti-bacterial and low cell toxicity properties. J Biomater Sci Polym Ed 2019; 31:169-187. [PMID: 31609684 DOI: 10.1080/09205063.2019.1680928] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Materials and scaffolds with antimicrobial properties are of great importance in wound dressing and other tissue engineering applications. The objective of the present work was to fabricate scaffolds made from nanocomposites of polycaprolactone (PCL) and quaternary ammonium salt-modified montmorillonite (MMT) by the electrospinning technique, and then characterize their antimicrobial and other properties for wound dressing applications. The effect of MMT on the structure, morphology, and thermal behavior of the electrospun wound dressings was assessed by means of X-ray diffraction (XRD), thermogravimetric analysis (TGA), and scanning electron microscopy (SEM); the swelling capacity, antibacterial activity, and cytotoxicity were also evaluated. The results of XRD and SEM analyses showed MMT was successfully incorporated into the PCL polymeric matrix and its inclusion reduced the size and thickness of the electrospun fibers compared to pure PCL fibers. The TGA results illustrated an increase in the thermal stability of nanocomposites upon incorporation of nanoclay into the PCL matrix. The swelling capacity of the wound dressings was reduced by increasing the amount of MMT in the PCL matrix due to the increased hydrophobicity of the original MMT resulting from its modification with quaternary ammonium salt. The in vitro curcumin (Cur) release profile revealed an initial burst release followed by a sustained release, with the burst release level reduced by the introduction of MMT into the polymeric matrix. Increasing the nanoclay content further reduced the curcumin release, with the PCL/20% MMT/Cur dressings having the lowest curcumin release of all those tested. The beneficial effect of MMT on the antibacterial behavior of electrospun wound dressings based on PCL/MMT nanocomposites was confirmed, with the introduction of both MMT and curcumin into the PCL matrix resulting in lower bacterial viability. PCL/10% MMT/Cur demonstrated higher antimicrobial activity and the greatest bacterial colony reduction compared to both pure PCL and PCL/10% MMT. The cytotoxicity evaluation indicated low toxicity and confirmed the potential of PCL/MMT nanocomposite scaffolds for wound dressing applications.
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Affiliation(s)
- Ali Sadeghianmaryan
- Department of Chemistry, Ardabil Branch, Islamic Azad University, Ardabil, Iran
| | - Zahra Yazdanpanah
- Division of Biomedical Engineering, University of Saskatchewan, Saskatoon, Canada
| | | | | | | | - Xiongbiao Chen
- Division of Biomedical Engineering, University of Saskatchewan, Saskatoon, Canada.,Department of Mechanical Engineering, University of Saskatchewan, Saskatoon, Canada
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20
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Moghanizadeh-Ashkezari M, Shokrollahi P, Zandi M, Shokrolahi F, Daliri MJ, Kanavi MR, Balagholi S. Vitamin C Loaded Poly(urethane-urea)/ZnAl-LDH Aligned Scaffolds Increase Proliferation of Corneal Keratocytes and Up-Regulate Vimentin Secretion. ACS Appl Mater Interfaces 2019; 11:35525-35539. [PMID: 31490646 DOI: 10.1021/acsami.9b07556] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A novel poly(urethane-urea) (PUU) based on poly(glycolide-co-ε-caprolactone) macro-diol with tunable mechanical properties and biodegradation behavior is reported for corneal stromal tissue regeneration. Zn-Al layered double hydroxide (LDH) nanoparticles were synthesized and loaded with vitamin C (VC, VC-LDH) and dispersed in the PUU to control VC release in the cell culturing medium. To mimic the corneal stromal EC, scaffolds of the PUU and its nanocomposites with VC-LDH (PUU-LDH and PUU-VC-LDH) were fabricated via electrospinning. Average diameters of the aligned nanofibers were recorded as 325 ± 168, 343 ± 171, and 414 ± 275 nm for the PUU, PUU-LDH, and PUU-VC-LDH scaffolds, respectively. Results of hydrophilicity and mechanical properties measurements showed increased hydrophobicity and reduced tensile strength and elongation at break upon addition of nanoparticles to the PUU scaffold. VC release studies represented that intercalation of the drug in Zn-Al-LDH controlled the burst release and extended the release period from a few hours to 5 days. Viability and proliferation of stromal keratocyte cells on the scaffolds were investigated via AlamarBlue assay. After 24 h, the cells showed similar viability on the scaffolds and the control. After 1 week, the cells showed some degree of proliferation on the scaffolds, with the highest value recorded for PUU-VC-LDH. SEM images of the scaffolds after 24 h and 1 week confirmed good penetration and attachment of keratocytes on all the scaffolds and the cells oriented with the direction of nanofibers. After 1 week, the PUU-VC-LDH scaffold was fully covered by the cells. Immunocytochemistry assay (ICC) was performed to investigate secretion of vimentin protein, ALDH3A1, and α-SMA by the cells. After 24h and 1 week, remarkably higher levels of vimentin and ALDH3A1 and lower level of α-SMA were secreted by keratocytes on PUU-VC-LDH compared to those on the PUU and PUU-LDH scaffolds and the control. Our results suggest that the aligned PUU-VC-LDH is a promising candidate for corneal stromal tissue engineering due to the presence of zinc and vitamin C.
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Affiliation(s)
- Mojgan Moghanizadeh-Ashkezari
- Department of Biomaterials, Faculty of Science , Iran Polymer and Petrochemical Institute , 14977-13115 , Tehran , Iran
| | - Parvin Shokrollahi
- Department of Biomaterials, Faculty of Science , Iran Polymer and Petrochemical Institute , 14977-13115 , Tehran , Iran
| | - Mojgan Zandi
- Department of Biomaterials, Faculty of Science , Iran Polymer and Petrochemical Institute , 14977-13115 , Tehran , Iran
| | - Fatemeh Shokrolahi
- Department of Biomaterials, Faculty of Science , Iran Polymer and Petrochemical Institute , 14977-13115 , Tehran , Iran
| | - Morteza J Daliri
- Department of Animal and Marine Biotechnology , National Institute of Genetic Engineering and Biotechnology , 14977-16316 Tehran , Iran
| | - Mozhgan R Kanavi
- Ocular Tissue Engineering Research Center , Shahid Beheshti University of Medical Sciences , 16666-63111 , Tehran , Iran
| | - Sahar Balagholi
- Blood Transfusion Research Center , High Institute for Research and Education in Transfusion Medicine , 14665-1157 , Tehran , Iran
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21
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Fiorica C, Tomasello L, Palumbo FS, Coppola A, Pitarresi G, Pizzolanti G, Giordano C, Giammona G. Production of a Double-Layer Scaffold for the "On-Demand" Release of Fibroblast-like Limbal Stem Cells. ACS Appl Mater Interfaces 2019; 11:22206-22217. [PMID: 31144805 DOI: 10.1021/acsami.9b06757] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The production and characterization of a double-layer scaffold, to be used as a system for the "on-demand" release of corneal limbal stem cells, are reported here. The devices used in the clinics and proposed so far in the scientific literature, for the release of corneal stem cells in the treatment of limbal stem cell deficiency, cannot control the in vivo space-time release of cells as the biomaterial of which they are composed is devoid of the stimuli-responsive feature. Our approach was to produce a scaffold composed of two different polymeric layers that give the device the appropriate mechanical properties to be placed on the ocular surface and the possibility of releasing the stem cells following a noninvasive and cell-friendly treatment. This device consists of an electrospun microfibrillar scaffold of poly-l-lactic acid coated by a polymeric film based on an amphiphilic derivative of hyaluronic acid sensitive to the ionic strength of the external medium and to the presence of a complexing agent. The latter represents the "sacrificial" cell containing layer of the scaffold that can be dissolved "on demand" by the treatment with a solution of cyclodextrins. The rapid removal of the external polymeric film from the device is exploited to control the space-time release of the cells. In vitro and ex vivo experiments showed that fibroblast-like limbal stem cells cultured on the scaffold without the use of the feeder layer maintained their characteristics of stem cells and can be released "on demand" on the culture well coated with Matrigel or on the decellularized bovine cornea, respectively.
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Affiliation(s)
- Calogero Fiorica
- Department of "Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche" (STEBICEF) , University of Palermo , Via Archirafi 32 , 90123 Palermo , Italy
| | - Laura Tomasello
- Department of "Promozione Della Salute Materno Infantile, di Medicina Interna e Specialistica di Eccellenza" "G. D'Alessandro" (ProMise) , University of Palermo , Piazza Delle Cliniche 2 , 90127 Palermo , Italy
| | - Fabio S Palumbo
- Department of "Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche" (STEBICEF) , University of Palermo , Via Archirafi 32 , 90123 Palermo , Italy
| | - Antonina Coppola
- Department of "Promozione Della Salute Materno Infantile, di Medicina Interna e Specialistica di Eccellenza" "G. D'Alessandro" (ProMise) , University of Palermo , Piazza Delle Cliniche 2 , 90127 Palermo , Italy
| | - Giovanna Pitarresi
- Department of "Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche" (STEBICEF) , University of Palermo , Via Archirafi 32 , 90123 Palermo , Italy
| | - Giuseppe Pizzolanti
- Department of "Promozione Della Salute Materno Infantile, di Medicina Interna e Specialistica di Eccellenza" "G. D'Alessandro" (ProMise) , University of Palermo , Piazza Delle Cliniche 2 , 90127 Palermo , Italy
| | - Carla Giordano
- Department of "Promozione Della Salute Materno Infantile, di Medicina Interna e Specialistica di Eccellenza" "G. D'Alessandro" (ProMise) , University of Palermo , Piazza Delle Cliniche 2 , 90127 Palermo , Italy
| | - Gaetano Giammona
- Department of "Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche" (STEBICEF) , University of Palermo , Via Archirafi 32 , 90123 Palermo , Italy
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22
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Wu Y, Kang YG, Kim IG, Kim JE, Lee EJ, Chung EJ, Shin JW. Mechanical stimuli enhance simultaneous differentiation into oesophageal cell lineages in a double-layered tubular scaffold. J Tissue Eng Regen Med 2019; 13:1394-1405. [PMID: 31066514 DOI: 10.1002/term.2881] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [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: 12/04/2018] [Revised: 04/13/2019] [Accepted: 04/29/2019] [Indexed: 01/02/2023]
Abstract
The tissue-engineered oesophagus serves as an alternative and promising therapeutic approach for long-gap oesophageal replacement. This study proposes an advanced in vitro culture platform focused on construction of the oesophagus by combining an electrospun double-layered tubular scaffold, stem cells, biochemical reagents, and biomechanical factors. Human mesenchymal stem cells were seeded onto the inner and outer surfaces of the scaffold. Mechanical stimuli were applied with a hollow organ bioreactor along with different biochemical reagents inside and outside of the scaffold. Electrospun fibres in a tubular scaffold were found to be randomly and circumferentially oriented for the inner and outer surfaces, respectively. Amongst the two types of mechanical stimuli, the intermittent shear flow that can simultaneously cause circumferential stretching due to hydrostatic pressure, and shear stress caused by flow on the inner surface, was found to be more effective for simultaneous differentiation into epithelial and muscle lineage than steady shear flow. Under these conditions, the expression of epithelial markers on the inner surface was significantly observed, although it was minimal on the outer surface. Muscle differentiation showed the opposite expression pattern. Meanwhile, the mechanical tests showed that the strength of the scaffold was improved after incubation for 14 days. We have developed a potential platform for tissue-engineered oesophagus construction. Specifically, simultaneous differentiation into epithelial and muscle lineages can be achieved by utilizing the double-layered scaffold and appropriate mechanical stimulation.
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Affiliation(s)
- Yanru Wu
- Department of Health Science and Technology, Inje University, Gimhae, Republic of Korea
| | - Yun Gyeong Kang
- Department of Biomedical Engineering, Inje University, Gimhae, Republic of Korea
| | - In Gul Kim
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Hospital, Seoul, Republic of Korea
| | - Ji Eun Kim
- Department of Biomedical Engineering, Inje University, Gimhae, Republic of Korea
| | - Eun Jin Lee
- Department of Biomedical Engineering, Inje University, Gimhae, Republic of Korea
| | - Eun-Jae Chung
- Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Hospital, Seoul, Republic of Korea
| | - Jung-Woog Shin
- Department of Health Science and Technology, Inje University, Gimhae, Republic of Korea.,Department of Biomedical Engineering, Inje University, Gimhae, Republic of Korea.,Cardiovascular and Metabolic Disease Center/Institute of Aged Life Redesign/UHARC, Inje University, Gimhae, Republic of Korea
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23
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Wu J, Cao L, Liu Y, Zheng A, Jiao D, Zeng D, Wang X, Kaplan DL, Jiang X. Functionalization of Silk Fibroin Electrospun Scaffolds via BMSC Affinity Peptide Grafting through Oxidative Self-Polymerization of Dopamine for Bone Regeneration. ACS Appl Mater Interfaces 2019; 11:8878-8895. [PMID: 30777748 DOI: 10.1021/acsami.8b22123] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Electrospun scaffolds have been broadly studied to enhance bone regeneration because of the ability to simulate the structure and biological functions of the extracellular matrix. Polydopamine (PDA) is used to coat various surfaces at a slightly basic pH (8-8.5) and spontaneously reacts with nucleophilic functional groups. It is suitable for surface modifications of scaffolds correlated with bone formation. E7 is a newly discovered peptide with specific affinity for bone marrow mesenchymal stem cells (BMSCs). It can be useful for recruiting stem cells. Here, electrospun silk fibroin (SF) scaffolds were fabricated, and PDA was used for surface modification followed by grafting E7 (SF-PDA-E7). These composite SF-PDA-E7 electrospun scaffolds improved hydrophilicity, facilitated cell proliferation and adhesion, and boosted the osteogenic differentiation of BMSCs by creating osteoinduction conditions under the synergistic effects of PDA and E7. Moreover, the scaffolds showed high efficiency for recruiting BMSCs induced by E7 both in vitro and in vivo, which was associated with the SDF-1α/CXCR4 axis and the p38, extracellular signal-related kinase, and Akt signal transduction pathways. These functionalized electrospun scaffolds promoted regeneration of bone in the rat calvarial bone defect model. In general, this study verified that PDA could be a simple and efficient method for surface modification, and E7-grafted PDA-modified SF electrospun scaffolds were suitable for bone tissue engineering.
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Affiliation(s)
| | | | - Yang Liu
- The State Key Laboratory of Bioreactor Engineering , East China University of Science and Technology , Shanghai 200237 , People's Republic of China
| | | | | | | | | | - David L Kaplan
- Department of Biomedical Engineering , 4 Colby Street, Tufts University , Medford , Massachusetts 02155 , United States
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24
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Elliott CG, Wang J, Walker JT, Michelsons S, Dunmore-Buyze J, Drangova M, Leask A, Hamilton DW. Periostin and CCN2 Scaffolds Promote the Wound Healing Response in the Skin of Diabetic Mice. Tissue Eng Part A 2019; 25:1326-1339. [PMID: 30572781 DOI: 10.1089/ten.tea.2018.0268] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [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: 02/05/2023] Open
Abstract
IMPACT STATEMENT Nonhealing skin wounds remain a significant burden on health care systems, with diabetic patients 20 times as likely to undergo a lower extremity amputation due to impaired healing. Novel treatments that suppress the proinflammatory signature and induce the proliferative and remodeling phases are needed clinically. We demonstrate that the addition of periostin and CCN2 in a scaffold form increases closure rates of full-thickness skin wounds in diabetic mice, concomitant with enhanced angiogenesis. Our results demonstrate the efficacy of periostin- and CCN2-containing biomaterials to stimulate wound closure, which could represent a novel method for the treatment of diabetic skin wounds.
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Affiliation(s)
- Christopher G Elliott
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Canada
| | - Jiarong Wang
- Division of Vascular Surgery, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Canada.,Department of Vascular Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, P.R. China
| | - John T Walker
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Canada
| | - Sarah Michelsons
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Canada
| | - Joy Dunmore-Buyze
- Imaging Research Laboratories, Robarts Research Institute, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Canada
| | - Maria Drangova
- Imaging Research Laboratories, Robarts Research Institute, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Canada.,Department of Medical Biophysics, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Canada
| | - Andrew Leask
- Division of Oral Biology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Canada
| | - Douglas W Hamilton
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Canada.,Division of Oral Biology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Canada
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25
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Lukasova V, Buzgo M, Sovkova V, Dankova J, Rampichova M, Amler E. Osteogenic differentiation of 3D cultured mesenchymal stem cells induced by bioactive peptides. Cell Prolif 2017; 50. [PMID: 28714176 DOI: 10.1111/cpr.12357] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [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: 03/13/2017] [Accepted: 05/10/2017] [Indexed: 01/01/2023] Open
Abstract
OBJECTIVES Bioactive peptides derived from receptor binding motifs of native proteins are a potent source of bioactive molecules that can induce signalling pathways. These peptides could substitute for osteogenesis promoting supplements. The work presented here compares three kinds of bioactive peptides derived from collagen III, bone morphogenetic protein 7 (BMP-7) and BMP-2 with their potential osteogenic activity on the model of porcine mesenchymal stem cells (pMSCs). MATERIALS AND METHODS pMSCs were cultured on electrospun polycaprolactone nanofibrous scaffolds with different concentrations of the bioactive peptides without addition of any osteogenic supplement. Analysis of pMSCs cultures included measurement of the metabolic activity and proliferation, immunofluorescence staining and also qPCR. RESULTS Results showed no detrimental effect of the bioactive peptides to cultured pMSCs. Based on qPCR analysis, the bioactive peptides are specific for osteogenic differentiation with no detectable expression of collagen II. Our results further indicate that peptide derived from BMP-2 protein promoted the expression of mRNA for osteocalcin (OCN) and collagen I significantly compared to control groups and also supported deposition of OCN as observed by immunostaining method. CONCLUSION The data suggest that bioactive peptide with an amino acid sequence of KIPKASSVPTELSAISTLYL derived from BMP-2 protein was the most potent for triggering osteogenic differentiation of pMSCs.
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Affiliation(s)
- Vera Lukasova
- Faculty of Science, Charles University in Prague, Prague, Czech Republic.,Laboratory of Tissue Engineering, Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Matej Buzgo
- Institute of Biophysics, 2nd Faculty of Medicine, Charles University in Prague, Prague, Czech Republic.,University Center for Energy Efficient Buildings, Czech Technical University in Prague, Bustehrad, Czech Republic
| | - Vera Sovkova
- Laboratory of Tissue Engineering, Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, Prague, Czech Republic.,Institute of Biophysics, 2nd Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
| | - Jana Dankova
- Laboratory of Tissue Engineering, Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, Prague, Czech Republic.,Institute of Biophysics, 2nd Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
| | - Michala Rampichova
- Laboratory of Tissue Engineering, Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, Prague, Czech Republic.,University Center for Energy Efficient Buildings, Czech Technical University in Prague, Bustehrad, Czech Republic
| | - Evzen Amler
- Laboratory of Tissue Engineering, Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, Prague, Czech Republic.,Institute of Biophysics, 2nd Faculty of Medicine, Charles University in Prague, Prague, Czech Republic.,University Center for Energy Efficient Buildings, Czech Technical University in Prague, Bustehrad, Czech Republic
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26
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Leino M, Astrand C, Hughes-Brittain N, Robb B, McKean R, Chotteau V. Human embryonic stem cell dispersion in electrospun PCL fiber scaffolds by coating with laminin-521 and E-cadherin-Fc. J Biomed Mater Res B Appl Biomater 2017; 106:1226-1236. [PMID: 28577328 DOI: 10.1002/jbm.b.33928] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [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: 11/24/2016] [Revised: 04/21/2017] [Accepted: 05/12/2017] [Indexed: 12/14/2022]
Abstract
Advances in human pluripotent cell cultivation and differentiation protocols have led to production of stem cell-derived progenitors as a promising cell source for replacement therapy. Three-dimensional (3-D) culture is a better mimic of the natural niche for stem cells and is widely used for disease modeling. Here, we describe a nonaggregate culture system of human embryonic stem cells inside electrospun polycaprolactone (PCL) fiber scaffolds combined with defined extracellular proteins naturally occurring in the stem cell niche. PCL fiber scaffolds coated with recombinant human laminin-521 readily supported initial stem cell attachment and growth from a single-cell suspension. The combination of recombinant E-cadherin-Fc and laminin-521 further improved cell dispersion rendering a uniform cell population. Finally, we showed that the cells cultured in E-cadherin-Fc- and laminin-521-coated PCL scaffolds could differentiate into all three germ layers. Importantly, we provided a chemically defined 3-D system in which pluripotent stem cells grown and differentiated avoiding the formation of cell aggregates. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 1226-1236, 2018.
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Affiliation(s)
- Mattias Leino
- School of Biotechnology, Cell Technology Group (CETEG), KTH - Royal Institute of Technology, Stockholm, Sweden
| | - Carolina Astrand
- School of Biotechnology, Cell Technology Group (CETEG), KTH - Royal Institute of Technology, Stockholm, Sweden
| | - Nanayaa Hughes-Brittain
- The Electrospinning Company Ltd, R70 Rutherford Appleton Laboratory, Harwell Oxford, Didcot, Oxfordshire, OX11 0QX, UK
| | - Brendan Robb
- The Electrospinning Company Ltd, R70 Rutherford Appleton Laboratory, Harwell Oxford, Didcot, Oxfordshire, OX11 0QX, UK
| | - Robert McKean
- The Electrospinning Company Ltd, R70 Rutherford Appleton Laboratory, Harwell Oxford, Didcot, Oxfordshire, OX11 0QX, UK
| | - Véronique Chotteau
- School of Biotechnology, Cell Technology Group (CETEG), KTH - Royal Institute of Technology, Stockholm, Sweden.,AdBIOPRO, Competence Centre for Advanced Bioproduction by Continuous Bioprocessing, KTH, Stockholm, Sweden
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27
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Martin JT, Gullbrand SE, Mohanraj B, Ashinsky BG, Kim DH, Ikuta K, Elliott DM, Smith LJ, Mauck RL, Smith HE. * Optimization of Preculture Conditions to Maximize the In Vivo Performance of Cell-Seeded Engineered Intervertebral Discs. Tissue Eng Part A 2017; 23:923-934. [PMID: 28426371 DOI: 10.1089/ten.tea.2016.0491] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [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: 12/12/2022] Open
Abstract
The development of engineered tissues has progressed over the past 20 years from in vitro characterization to in vivo implementation. For musculoskeletal tissue engineering in particular, the emphasis of many of these studies was to select conditions that maximized functional and compositional gains in vitro. However, the transition from the favorable in vitro culture environment to a less favorable in vivo environment has proven difficult, and, in many cases, engineered tissues do not retain their preimplantation phenotype after even short periods in vivo. Our laboratory recently developed disc-like angle-ply structures (DAPS), an engineered intervertebral disc for total disc replacement. In this study, we tested six different preculture media formulations (three serum-containing and three chemically defined, with varying doses of transforming growth factor β3 [TGF-β3] and varying strategies to introduce serum) for their ability to preserve DAPS composition and metabolic activity during the transition from in vitro culture to in vivo implantation in a subcutaneous athymic rat model. We assayed implants before and after implantation to determine collagen content, glycosaminoglycan (GAG) content, metabolic activity, and magnetic resonance imaging (MRI) characteristics. A chemically defined media condition that incorporated TGF-β3 promoted the deposition of GAG and collagen in DAPS in vitro, the maintenance of accumulated matrix in vivo, and minimal changes in the metabolic activity of cells within the construct. Preculture in serum-containing media (with or without TGF-β3) was not compatible with DAPS maturation, particularly in the nucleus pulposus (NP) region. All groups showed increased collagen production after implantation. These findings define a favorable preculture strategy for the translation of engineered discs seeded with disc cells.
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Affiliation(s)
- John T Martin
- 1 Department of Orthopedic Surgery, University of Pennsylvania , Philadelphia, Pennsylvania.,2 Translational Musculoskeletal Research Center, Corporal Michael Crescenz VA Medical Center , Philadelphia, Pennsylvania.,3 Department of Mechanical Engineering and Applied Mechanics, University of Pennsylvania , Philadelphia, Pennsylvania
| | - Sarah E Gullbrand
- 1 Department of Orthopedic Surgery, University of Pennsylvania , Philadelphia, Pennsylvania.,2 Translational Musculoskeletal Research Center, Corporal Michael Crescenz VA Medical Center , Philadelphia, Pennsylvania
| | - Bhavana Mohanraj
- 1 Department of Orthopedic Surgery, University of Pennsylvania , Philadelphia, Pennsylvania.,2 Translational Musculoskeletal Research Center, Corporal Michael Crescenz VA Medical Center , Philadelphia, Pennsylvania.,4 Department of Bioengineering, University of Pennsylvania , Philadelphia, Pennsylvania
| | - Beth G Ashinsky
- 1 Department of Orthopedic Surgery, University of Pennsylvania , Philadelphia, Pennsylvania.,2 Translational Musculoskeletal Research Center, Corporal Michael Crescenz VA Medical Center , Philadelphia, Pennsylvania
| | - Dong Hwa Kim
- 1 Department of Orthopedic Surgery, University of Pennsylvania , Philadelphia, Pennsylvania.,2 Translational Musculoskeletal Research Center, Corporal Michael Crescenz VA Medical Center , Philadelphia, Pennsylvania
| | - Kensuke Ikuta
- 1 Department of Orthopedic Surgery, University of Pennsylvania , Philadelphia, Pennsylvania.,2 Translational Musculoskeletal Research Center, Corporal Michael Crescenz VA Medical Center , Philadelphia, Pennsylvania
| | - Dawn M Elliott
- 5 Department of Biomedical Engineering, University of Delaware , Newark, Delaware
| | - Lachlan J Smith
- 1 Department of Orthopedic Surgery, University of Pennsylvania , Philadelphia, Pennsylvania.,2 Translational Musculoskeletal Research Center, Corporal Michael Crescenz VA Medical Center , Philadelphia, Pennsylvania.,6 Department of Neurosurgery, University of Pennsylvania , Philadelphia, Pennsylvania
| | - Robert L Mauck
- 1 Department of Orthopedic Surgery, University of Pennsylvania , Philadelphia, Pennsylvania.,2 Translational Musculoskeletal Research Center, Corporal Michael Crescenz VA Medical Center , Philadelphia, Pennsylvania.,3 Department of Mechanical Engineering and Applied Mechanics, University of Pennsylvania , Philadelphia, Pennsylvania.,4 Department of Bioengineering, University of Pennsylvania , Philadelphia, Pennsylvania
| | - Harvey E Smith
- 1 Department of Orthopedic Surgery, University of Pennsylvania , Philadelphia, Pennsylvania.,2 Translational Musculoskeletal Research Center, Corporal Michael Crescenz VA Medical Center , Philadelphia, Pennsylvania.,6 Department of Neurosurgery, University of Pennsylvania , Philadelphia, Pennsylvania
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28
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Abstract
Diseases and disorders associated with nervous system such as injuries by trauma and neurodegeneration are shown to be one of the most serious problems in medicine, requiring innovative strategies to trigger and enhance the nerve regeneration. Tissue engineering aims to provide a highly biomimetic environment by using a combination of cells, materials and suitable biological cues, by which the lost body part may be regenerated or even fully rebuilt. Electrospinning, being able to produce extracellular matrix (ECM)-like nanostructures with great flexibility in design and choice of materials, have demonstrated their great potential for fabrication of nerve tissue engineered scaffolds. The review here begins with a brief description of the anatomy of native nervous system, which provides basic knowledge and ideas for the design of nerve tissue scaffolds, followed by five main parts in the design of electrospun nerve tissue engineered scaffolds including materials selection, structural design, in vitro bioreactor, functionalization and cellular support. Performances of biomimetic electrospun nanofibrous nerve implant devices are also reviewed. Finally, future directions for advanced electrospun nerve tissue engineered scaffolds are discussed.
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Affiliation(s)
- Nuan Chen
- Center for Nanofibers and Nanotechnology, Department of Mechanical Engineering, Faculty of Engineering, National University of Singapore, Singapore, Singapore
| | - Lingling Tian
- Center for Nanofibers and Nanotechnology, Department of Mechanical Engineering, Faculty of Engineering, National University of Singapore, Singapore, Singapore
| | - Liumin He
- Department of Biomedical Engineering, College of Life Science and Technology, Jinan University, Guangzhou, Guangdong Province, China
| | - Seeram Ramakrishna
- Center for Nanofibers and Nanotechnology, Department of Mechanical Engineering, Faculty of Engineering, National University of Singapore, Singapore, Singapore; Guangdong-Hongkong-Macau Institute of CNS Regeneration (GHMICR), Jinan University, Guangzhou, Guangdong Province, China
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29
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Selvakumar M, Pawar HS, Francis NK, Das B, Dhara S, Chattopadhyay S. Excavating the Role of Aloe Vera Wrapped Mesoporous Hydroxyapatite Frame Ornamentation in Newly Architectured Polyurethane Scaffolds for Osteogenesis and Guided Bone Regeneration with Microbial Protection. ACS Appl Mater Interfaces 2016; 8:5941-5960. [PMID: 26889707 DOI: 10.1021/acsami.6b01014] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Guided bone regeneration (GBR) scaffolds are unsuccessful in many clinical applications due to a high incidence of postoperative infection. The objective of this work is to fabricate GBR with an anti-infective electrospun scaffold by ornamenting segmented polyurethane (SPU) with two-dimensional Aloe vera wrapped mesoporous hydroxyapatite (Al-mHA) nanorods. The antimicrobial characteristic of the scaffold has been retrieved from the prepared Al-mHA frame with high aspect ratio (∼14.2) via biosynthesis route using Aloe vera (Aloe barbadensis miller) extract. The Al-mHA frame was introduced into an unprecedented SPU matrix (solution polymerized) based on combinatorial soft segments of poly(ε-caprolactone) (PCL), poly(ethylene carbonate) (PEC), and poly(dimethylsiloxane) (PDMS), by an in situ technique followed by electrospinning to fabricate scaffolds. For comparison, pristine mHA nanorods are also ornamented into it. An enzymatic ring-opening polymerization technique was adapted to synthesize soft segment of (PCL-PEC-b-PDMS). Structure elucidation of the synthesized polymers is established by nuclear magnetic resonance spectroscopy. Sparingly, Al-mHA ornamented scaffolds exhibit tremendous improvement (175%) in the mechanical properties with promising antimicrobial activity against various human pathogens. After confirmation of high osteoconductivity, improved biodegradation, and excellent biocompatibility against osteoblast-like MG63 cells (in vitro), the scaffolds were implanted in rabbits as an animal model by subcutaneous and intraosseous (tibial) sites. Improved in vivo biocompatibilities, biodegradation, osteoconductivity, and the ability to provide an adequate biomimetic environment for biomineralization for GBR of the scaffolds (SPU and ornamented SPUs) have been found from the various histological sections. Early cartilage formation, endochondral ossification, and rapid bone healing at 4 weeks were found in the defects filled with Al-mHA ornamented scaffold compared to pristine SPU scaffold. Organ toxicity studies further confirm the absence of appreciable tissue architecture abnormalities in the renal hepatic and cardiac tissue sections. The entire results of this study manifest the feasibility of fabricating a mechanically adequate tailored nanofibrous SPU scaffold based on combinatorial soft segments of PCL, PEC, and PDMS by a biomimetic approach and the advantages of an Aloe vera wrapped mHA frame in promoting osteoblast phenotype progression with microbial protection for potential GBR applications.
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Affiliation(s)
- M Selvakumar
- Rubber Technology Centre and ‡School of Medical Science and Technology, Indian Institute of Technology , Kharagpur 721302, India
| | - Harpreet Singh Pawar
- Rubber Technology Centre and ‡School of Medical Science and Technology, Indian Institute of Technology , Kharagpur 721302, India
| | - Nimmy K Francis
- Rubber Technology Centre and ‡School of Medical Science and Technology, Indian Institute of Technology , Kharagpur 721302, India
| | - Bodhisatwa Das
- Rubber Technology Centre and ‡School of Medical Science and Technology, Indian Institute of Technology , Kharagpur 721302, India
| | - Santanu Dhara
- Rubber Technology Centre and ‡School of Medical Science and Technology, Indian Institute of Technology , Kharagpur 721302, India
| | - Santanu Chattopadhyay
- Rubber Technology Centre and ‡School of Medical Science and Technology, Indian Institute of Technology , Kharagpur 721302, India
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Selvakumar M, Srivastava P, Pawar HS, Francis NK, Das B, Sathishkumar G, Subramanian B, Jaganathan SK, George G, Anandhan S, Dhara S, Nando GB, Chattopadhyay S. On-Demand Guided Bone Regeneration with Microbial Protection of Ornamented SPU Scaffold with Bismuth-Doped Single Crystalline Hydroxyapatite: Augmentation and Cartilage Formation. ACS Appl Mater Interfaces 2016; 8:4086-4100. [PMID: 26799576 DOI: 10.1021/acsami.5b11723] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Guided bone regeneration (GBR) scaffolds are futile in many clinical applications due to infection problems. In this work, we fabricated GBR with an anti-infective scaffold by ornamenting 2D single crystalline bismuth-doped nanohydroxyapatite (Bi-nHA) rods onto segmented polyurethane (SPU). Bi-nHA with high aspect ratio was prepared without any templates. Subsequently, it was introduced into an unprecedented synthesized SPU matrix based on dual soft segments (PCL-b-PDMS) of poly(ε-caprolactone) (PCL) and poly(dimethylsiloxane) (PDMS), by an in situ technique followed by electrospinning to fabricate scaffolds. For comparison, undoped pristine nHA rods were also ornamented into it. The enzymatic ring-opening polymerization technique was adapted to synthesize soft segments of PCL-b-PDMS copolymers of SPU. Structure elucidation of the synthesized polymers is done by nuclear magnetic resonance spectroscopy. Sparingly, Bi-nHA ornamented scaffolds exhibit tremendous improvement (155%) in the mechanical properties with excellent antimicrobial activity against various human pathogens. After confirmation of high osteoconductivity, improved biodegradation, and excellent biocompatibility against osteoblast cells (in vitro), the scaffolds were implanted in rabbits by subcutaneous and intraosseous (tibial) sites. Various histological sections reveal the signatures of early cartilage formation, endochondral ossification, and rapid bone healing at 4 weeks of the critical defects filled with ornamented scaffold compared to SPU scaffold. This implies osteogenic potential and ability to provide an adequate biomimetic microenvironment for mineralization for GBR of the scaffolds. Organ toxicity studies further confirm that no tissue architecture abnormalities were observed in hepatic, cardiac, and renal tissue sections. This finding manifests the feasibility of fabricating a mechanically adequate nanofibrous SPU scaffold by a biomimetic strategy and the advantages of Bi-nHA ornamentation in promoting osteoblast phenotype progression with microbial protection (on-demand) for GBR applications.
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Affiliation(s)
- M Selvakumar
- Indian Institute of Technology , Rubber Technology Centre, Kharagpur 721302, India
| | - Priyanka Srivastava
- Sanjay Gandhi Post Graduate Institute of Medical Science , Department of Medical Genetics, Lucknow 226014, Uttar Pradesh India
| | - Harpreet Singh Pawar
- Indian Institute of Technology , School of Medical Science and Technology, Kharagpur 721302, India
| | - Nimmy K Francis
- Indian Institute of Technology , School of Medical Science and Technology, Kharagpur 721302, India
| | - Bodhisatwa Das
- Indian Institute of Technology , School of Medical Science and Technology, Kharagpur 721302, India
| | - G Sathishkumar
- Bharathidasan University , Department of Biotechnology and Genetic Engineering, Tiruchirappalli 620024, Tamilnadu India
| | - Bhuvaneshwaran Subramanian
- Indian Institute of Technology , RISUG® and Allied Science Laboratories, School of Medical Science and Technology, Kharagpur 721302, India
| | - Saravana Kumar Jaganathan
- Universiti Teknologi Malaysia , Faculty of Bioscience and Medical Engineering, IJN-UTM Cardiovascular Engineering Centre, Johor Bahru 81310, Malaysia
| | - Gibin George
- National Institute of Technology Karnataka , Department of Metallurgical and Materials Engineering, Mangalore 575025, Karnataka India
| | - S Anandhan
- National Institute of Technology Karnataka , Department of Metallurgical and Materials Engineering, Mangalore 575025, Karnataka India
| | - Santanu Dhara
- Indian Institute of Technology , School of Medical Science and Technology, Kharagpur 721302, India
| | - Golok B Nando
- Indian Institute of Technology , Rubber Technology Centre, Kharagpur 721302, India
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Haase T, Krost A, Sauter T, Kratz K, Peter J, Kamann S, Jung F, Lendlein A, Zohlnhöfer D, Rüder C. In vivo biocompatibility assessment of poly (ether imide) electrospun scaffolds. J Tissue Eng Regen Med 2015; 11:1034-1044. [PMID: 25712330 DOI: 10.1002/term.2002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [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: 03/30/2014] [Revised: 11/25/2014] [Accepted: 12/17/2014] [Indexed: 12/18/2022]
Abstract
Poly(ether imide) (PEI), which can be chemically functionalized with biologically active ligands, has emerged as a potential biomaterial for medical implants. Electrospun PEI scaffolds have shown advantageous properties, such as enhanced endothelial cell adherence, proliferation and low platelet adhesion in in vitro experiments. In this study, the in vivo behaviour of electrospun PEI scaffolds and PEI films was examined in a murine subcutaneous implantation model. Electrospun PEI scaffolds and films were surgically implanted subcutaneously in the dorsae of mice. The surrounding subcutaneous tissue response was examined via histopathological examination at 7 and 28 days after implantation. No serious adverse events were observed for both types of PEI implants. The presence of macrophages or foreign body giant cells in the vicinity of the implants and the formation of a fibrous capsule indicated a normal foreign body reaction towards PEI films and scaffolds. Capsule thickness and inflammatory infiltration cells significantly decreased for PEI scaffolds during days 7-28 while remaining unchanged for PEI films. The infiltration of cells into the implant was observed for PEI scaffolds 7 days after implantation and remained stable until 28 days of implantation. Additionally some, but not all, PEI scaffold implants induced the formation of functional blood vessels in the vicinity of the implants. Conclusively, this study demonstrates the in vivo biocompatibility of PEI implants, with favourable properties of electrospun PEI scaffolds regarding tissue integration and wound healing. Copyright © 2015 John Wiley & Sons, Ltd.
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Affiliation(s)
- Tobias Haase
- Berlin-Brandenburg Centre for Regenerative Therapies, Berlin, Germany.,Department of Cardiology, Campus Virchow Klinikum, Charité, Berlin, Germany
| | - Annalena Krost
- Berlin-Brandenburg Centre for Regenerative Therapies, Berlin, Germany
| | - Tilman Sauter
- Berlin-Brandenburg Centre for Regenerative Therapies, Berlin, Germany.,Institute of Biomaterial Science, Helmholtz-Zentrum Geesthacht, Teltow, Germany.,Institute of Biochemistry and Biology, University of Potsdam, Germany
| | - Karl Kratz
- Berlin-Brandenburg Centre for Regenerative Therapies, Berlin, Germany.,Institute of Biomaterial Science, Helmholtz-Zentrum Geesthacht, Teltow, Germany
| | - Jan Peter
- Berlin-Brandenburg Centre for Regenerative Therapies, Berlin, Germany
| | - Stefanie Kamann
- Berlin-Brandenburg Centre for Regenerative Therapies, Berlin, Germany.,Department of Cardiology, Campus Virchow Klinikum, Charité, Berlin, Germany
| | - Friedrich Jung
- Berlin-Brandenburg Centre for Regenerative Therapies, Berlin, Germany.,Institute of Biomaterial Science, Helmholtz-Zentrum Geesthacht, Teltow, Germany
| | - Andreas Lendlein
- Berlin-Brandenburg Centre for Regenerative Therapies, Berlin, Germany.,Institute of Biomaterial Science, Helmholtz-Zentrum Geesthacht, Teltow, Germany.,Institute of Biochemistry and Biology, University of Potsdam, Germany
| | - Dietlind Zohlnhöfer
- Berlin-Brandenburg Centre for Regenerative Therapies, Berlin, Germany.,Department of Cardiology, Campus Virchow Klinikum, Charité, Berlin, Germany
| | - Constantin Rüder
- Berlin-Brandenburg Centre for Regenerative Therapies, Berlin, Germany.,Department of Cardiology, Campus Virchow Klinikum, Charité, Berlin, Germany
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Zhan Q, Shen B, Deng X, Chen H, Jin J, Zhang X, Peng C, Li H. Drug-eluting scaffold to deliver chemotherapeutic medication for management of pancreatic cancer after surgery. Int J Nanomedicine 2013; 8:2465-72. [PMID: 23885173 PMCID: PMC3716555 DOI: 10.2147/ijn.s47666] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [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] [Indexed: 01/05/2023] Open
Abstract
Traditional post-surgical chemotherapy for pancreatic cancer is notorious for its devastating side effects due to the high dosage required. On the other hand, legitimate concerns have been raised about nanoparticle-mediated drug delivery because of its potential cytotoxicity. Therefore, we explored the local delivery of a reduced dosage of FOLFIRINOX, a four-drug regimen comprising oxaliplatin, leucovorin, irinotecan, and fluorouracil, for pancreatic cancer using a biocompatible drug-eluting scaffold as a novel chemotherapy strategy after palliative surgery. In vitro assays showed that FOLFIRINOX in the scaffold caused massive apoptosis and thereby a decrease in the viability of pancreatic cancer cells, confirming the chemotherapeutic capability of the drug-eluting scaffold. In vivo studies in an orthotopic murine xenograft model demonstrated that the FOLFIRINOX in the scaffold had antitumorigenic and antimetastatic effects comparable with those achieved by intraperitoneal injection, despite the dose released by the scaffold being roughly two thirds lower. A mechanistic study attributed our results to the excellent ability of the FOLFIRINOX in the scaffold to destroy the CD133+CXCR4+ cell population responsible for pancreatic tumorigenesis and metastasis. This clinically oriented study gives rise to a promising alternative strategy for postsurgical management of pancreatic cancer, featuring a local chemotherapeutic effect with considerable attenuation of side effects.
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Affiliation(s)
- Qian Zhan
- Department of General Surgery, Rui Jin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, People's Republic of China
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He Q, Wang X, Zhang X, Han H, Han B, Xu J, Tang K, Fu Z, Yin H. A tissue-engineered subcutaneous pancreatic cancer model for antitumor drug evaluation. Int J Nanomedicine 2013; 8:1167-76. [PMID: 23658483 PMCID: PMC3607421 DOI: 10.2147/ijn.s42464] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [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] [Indexed: 12/31/2022] Open
Abstract
The traditional xenograft subcutaneous pancreatic cancer model is notorious for its low incidence of tumor formation, inconsistent results for the chemotherapeutic effects of drug molecules of interest, and a poor predictive capability for the clinical efficacy of novel drugs. These drawbacks are attributed to a variety of factors, including inoculation of heterogeneous tumor cells from patients with different pathological histories, and use of poorly defined Matrigel®. In this study, we aimed to tissue-engineer a pancreatic cancer model that could readily cultivate a pancreatic tumor derived from highly homogenous CD24+CD44+ pancreatic cancer stem cells delivered by a well defined electrospun scaffold of poly(glycolide-co-trimethylene carbonate) and gelatin. The scaffold supported in vitro tumorigenesis from CD24+CD44+ cancer stem cells for up to 7 days without inducing apoptosis. Moreover, CD24+CD44+ cancer stem cells delivered by the scaffold grew into a native-like mature pancreatic tumor within 8 weeks in vivo and exhibited accelerated tumorigenesis as well as a higher incidence of tumor formation than the traditional model. In the scaffold model, we discovered that oxaliplatin-gemcitabine (OXA-GEM), a chemotherapeutic regimen, induced tumor regression whereas gemcitabine alone only capped tumor growth. The mechanistic study attributed the superior antitumorigenic performance of OXA-GEM to its ability to induce apoptosis of CD24+CD44+ cancer stem cells. Compared with the traditional model, the scaffold model demonstrated a higher incidence of tumor formation and accelerated tumor growth. Use of a tiny population of highly homogenous CD24+CD44+ cancer stem cells delivered by a well defined scaffold greatly reduces the variability associated with the traditional model, which uses a heterogeneous tumor cell population and poorly defined Matrigel. The scaffold model is a robust platform for investigating the antitumorigenesis mechanism of novel chemotherapeutic drugs with a special focus on cancer stem cells.
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Affiliation(s)
- Qingyi He
- Department of Orthopedic Surgery, Southwest Hospital, Third Military Medical University, Chongqing, People’s Republic of China
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