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Shlapakova LE, Surmeneva MA, Kholkin AL, Surmenev RA. Revealing an important role of piezoelectric polymers in nervous-tissue regeneration: A review. Mater Today Bio 2024; 25:100950. [PMID: 38318479 PMCID: PMC10840125 DOI: 10.1016/j.mtbio.2024.100950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 12/12/2023] [Accepted: 01/08/2024] [Indexed: 02/07/2024] Open
Abstract
Nerve injuries pose a drastic threat to nerve mobility and sensitivity and lead to permanent dysfunction due to low regenerative capacity of mature neurons. The electrical stimuli that can be provided by electroactive materials are some of the most effective tools for the formation of soft tissues, including nerves. Electric output can provide a distinctly favorable bioelectrical microenvironment, which is especially relevant for the nervous system. Piezoelectric biomaterials have attracted attention in the field of neural tissue engineering owing to their biocompatibility and ability to generate piezoelectric surface charges. In this review, an outlook of the most recent achievements in the field of piezoelectric biomaterials is described with an emphasis on piezoelectric polymers for neural tissue engineering. First, general recommendations for the design of an optimal nerve scaffold are discussed. Then, specific mechanisms determining nerve regeneration via piezoelectric stimulation are considered. Activation of piezoelectric responses via natural body movements, ultrasound, and magnetic fillers is also examined. The use of magnetoelectric materials in combination with alternating magnetic fields is thought to be the most promising due to controllable reproducible cyclic deformations and deep tissue permeation by magnetic fields without tissue heating. In vitro and in vivo applications of nerve guidance scaffolds and conduits made of various piezopolymers are reviewed too. Finally, challenges and prospective research directions regarding piezoelectric biomaterials promoting nerve regeneration are discussed. Thus, the most relevant scientific findings and strategies in neural tissue engineering are described here, and this review may serve as a guideline both for researchers and clinicians.
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Affiliation(s)
- Lada E. Shlapakova
- Physical Materials Science and Composite Materials Center, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk, 634050, Russia
| | - Maria A. Surmeneva
- Physical Materials Science and Composite Materials Center, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk, 634050, Russia
- Piezo- and Magnetoelectric Materials Research & Development Centre, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, 634050, Tomsk, Russia
| | - Andrei L. Kholkin
- Piezo- and Magnetoelectric Materials Research & Development Centre, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, 634050, Tomsk, Russia
- Department of Physics & CICECO - Aveiro Institute of Materials, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Roman A. Surmenev
- Physical Materials Science and Composite Materials Center, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk, 634050, Russia
- Piezo- and Magnetoelectric Materials Research & Development Centre, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, 634050, Tomsk, Russia
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2
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Shlapakova LE, Botvin VV, Mukhortova YR, Zharkova II, Alipkina SI, Zeltzer A, Dudun AA, Makhina T, Bonartseva GA, Voinova VV, Wagner DV, Pariy I, Bonartsev AP, Surmenev RA, Surmeneva MA. Magnetoactive Composite Conduits Based on Poly(3-hydroxybutyrate) and Magnetite Nanoparticles for Repair of Peripheral Nerve Injury. ACS APPLIED BIO MATERIALS 2024; 7:1095-1114. [PMID: 38270084 DOI: 10.1021/acsabm.3c01032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2024]
Abstract
Peripheral nerve injury poses a threat to the mobility and sensitivity of a nerve, thereby leading to permanent function loss due to the low regenerative capacity of mature neurons. To date, the most widely clinically applied approach to bridging nerve injuries is autologous nerve grafting, which faces challenges such as donor site morbidity, donor shortages, and the necessity of a second surgery. An effective therapeutic strategy is urgently needed worldwide to overcome the current limitations. Herein, a magnetic nerve guidance conduit (NGC) based on biocompatible biodegradable poly(3-hydroxybutyrate) (PHB) and 8 wt % of magnetite nanoparticles modified by citric acid (Fe3O4-CA) was fabricated by electrospinning. The crystalline structure of NGCs was studied by X-ray diffraction, which indicated an enlarged β-phase of PHB in the composite conduit compared to a pure PHB conduit. Tensile tests revealed greater ductility of PHB/Fe3O4-CA: the composite conduit has Young's modulus of 221 ± 52 MPa and an elongation at break of 28.6 ± 2.9%, comparable to clinical materials. Saturation magnetization (σs) of Fe3O4-CA and PHB/Fe3O4-CA is 61.88 ± 0.29 and 7.44 ± 0.07 emu/g, respectively. The water contact angle of the PHB/Fe3O4-CA conduit is lower as compared to pure PHB, while surface free energy (σ) is significantly higher, which was attributed to higher surface roughness and an amorphous phase as well as possible PHB/Fe3O4-CA interface interactions. In vitro, the conduits supported the proliferation of rat mesenchymal stem cells (rMSCs) and SH-SY5Y cells in a low-frequency magnetic field (0.67 Hz, 68 mT). In vivo, the conduits were used to bridge damaged sciatic nerves in rats; pure PHB and composite PHB/Fe3O4-CA conduits did not cause acute inflammation and performed a barrier function, which promotes nerve regeneration. Thus, these conduits are promising as implants for the regeneration of peripheral nerves.
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Affiliation(s)
- Lada E Shlapakova
- Physical Materials Science and Composite Materials Center, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk 634050, Russia
| | - Vladimir V Botvin
- Physical Materials Science and Composite Materials Center, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk 634050, Russia
| | - Yulia R Mukhortova
- Physical Materials Science and Composite Materials Center, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk 634050, Russia
| | - Irina I Zharkova
- Faculty of Biology, M.V. Lomonosov Moscow State University, Leninskie Gory 1-12, Moscow 119234, Russia
| | - Svetlana I Alipkina
- Faculty of Biology, M.V. Lomonosov Moscow State University, Leninskie Gory 1-12, Moscow 119234, Russia
| | - Angelina Zeltzer
- Faculty of Biology, M.V. Lomonosov Moscow State University, Leninskie Gory 1-12, Moscow 119234, Russia
| | - Andrey A Dudun
- Research Center of Biotechnology, Russian Academy of Sciences, Leninsky Ave 33, Bldg. 2, Moscow 119071, Russia
| | - Tatiana Makhina
- Research Center of Biotechnology, Russian Academy of Sciences, Leninsky Ave 33, Bldg. 2, Moscow 119071, Russia
| | - Garina A Bonartseva
- Research Center of Biotechnology, Russian Academy of Sciences, Leninsky Ave 33, Bldg. 2, Moscow 119071, Russia
| | - Vera V Voinova
- Faculty of Biology, M.V. Lomonosov Moscow State University, Leninskie Gory 1-12, Moscow 119234, Russia
| | - Dmitry V Wagner
- National Research Tomsk State University, Tomsk 634050, Russia
| | - Igor Pariy
- Physical Materials Science and Composite Materials Center, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk 634050, Russia
| | - Anton P Bonartsev
- Faculty of Biology, M.V. Lomonosov Moscow State University, Leninskie Gory 1-12, Moscow 119234, Russia
| | - Roman A Surmenev
- Physical Materials Science and Composite Materials Center, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk 634050, Russia
| | - Maria A Surmeneva
- Physical Materials Science and Composite Materials Center, Research School of Chemistry & Applied Biomedical Sciences, National Research Tomsk Polytechnic University, Tomsk 634050, Russia
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3
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Rahman M, Mahady Dip T, Padhye R, Houshyar S. Review on electrically conductive smart nerve guide conduit for peripheral nerve regeneration. J Biomed Mater Res A 2023; 111:1916-1950. [PMID: 37555548 DOI: 10.1002/jbm.a.37595] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 01/29/2023] [Accepted: 07/26/2023] [Indexed: 08/10/2023]
Abstract
At present, peripheral nerve injuries (PNIs) are one of the leading causes of substantial impairment around the globe. Complete recovery of nerve function after an injury is challenging. Currently, autologous nerve grafts are being used as a treatment; however, this has several downsides, for example, donor site morbidity, shortage of donor sites, loss of sensation, inflammation, and neuroma development. The most promising alternative is the development of a nerve guide conduit (NGC) to direct the restoration and renewal of neuronal axons from the proximal to the distal end to facilitate nerve regeneration and maximize sensory and functional recovery. Alternatively, the response of nerve cells to electrical stimulation (ES) has a substantial regenerative effect. The incorporation of electrically conductive biomaterials in the fabrication of smart NGCs facilitates the function of ES throughout the active proliferation state. This article overviews the potency of the various categories of electroactive smart biomaterials, including conductive and piezoelectric nanomaterials, piezoelectric polymers, and organic conductive polymers that researchers have employed latterly to fabricate smart NGCs and their potentiality in future clinical application. It also summarizes a comprehensive analysis of the recent research and advancements in the application of ES in the field of NGC.
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Affiliation(s)
- Mustafijur Rahman
- Center for Materials Innovation and Future Fashion (CMIFF), School of Fashion and Textiles, RMIT University, Brunswick, Australia
- Department of Dyes and Chemical Engineering, Bangladesh University of Textiles, Dhaka, Bangladesh
| | - Tanvir Mahady Dip
- Department of Materials, University of Manchester, Manchester, UK
- Department of Yarn Engineering, Bangladesh University of Textiles, Dhaka, Bangladesh
| | - Rajiv Padhye
- Center for Materials Innovation and Future Fashion (CMIFF), School of Fashion and Textiles, RMIT University, Brunswick, Australia
| | - Shadi Houshyar
- School of Engineering, RMIT University, Melbourne, Victoria, Australia
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4
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Shi S, Ou X, Cheng D. How Advancing is Peripheral Nerve Regeneration Using Nanofiber Scaffolds? A Comprehensive Review of the Literature. Int J Nanomedicine 2023; 18:6763-6779. [PMID: 38026517 PMCID: PMC10657550 DOI: 10.2147/ijn.s436871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Accepted: 11/02/2023] [Indexed: 12/01/2023] Open
Abstract
Peripheral nerve injuries present significant challenges in regenerative medicine, primarily due to inherent limitations in the body's natural healing processes. In response to these challenges and with the aim of enhancing peripheral nerve regeneration, nanofiber scaffolds have emerged as a promising and advanced intervention. However, a deeper understanding of the underlying mechanistic foundations that drive the favorable contributions of nanofiber scaffolds to nerve regeneration is essential. In this comprehensive review, we make an exploration of the latent potential of nanofiber scaffolds in augmenting peripheral nerve regeneration. This exploration includes a detailed introduction to the fabrication methods of nanofibers, an analysis of the intricate interactions between these scaffolds and cellular entities, an examination of strategies related to the controlled release of bioactive agents, an assessment of the prospects for clinical translation, an exploration of emerging trends, and thorough considerations regarding biocompatibility and safety. By comprehensively elucidating the intricate structural attributes and multifaceted functional capacities inherent in nanofiber scaffolds, we aim to offer a prospective and effective strategy for the treatment of peripheral nerve injury.
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Affiliation(s)
- Shaoyan Shi
- Department of Hand Surgery, Honghui Hospital, Xi’an Jiaotong University, Xi’an Honghui Hospital North District, Xi’an, Shaanxi, 710000, People’s Republic of China
| | - Xuehai Ou
- Department of Hand Surgery, Honghui Hospital, Xi’an Jiaotong University, Xi’an Honghui Hospital North District, Xi’an, Shaanxi, 710000, People’s Republic of China
| | - Deliang Cheng
- Department of Hand Surgery, Honghui Hospital, Xi’an Jiaotong University, Xi’an Honghui Hospital North District, Xi’an, Shaanxi, 710000, People’s Republic of China
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5
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Bassett C, Triplett H, Lott K, Howard KM, Kingsley K. Differential Expression of MicroRNA (MiR-27, MiR-145) among Dental Pulp Stem Cells (DPSCs) Following Neurogenic Differentiation Stimuli. Biomedicines 2023; 11:3003. [PMID: 38002003 PMCID: PMC10669296 DOI: 10.3390/biomedicines11113003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 11/03/2023] [Accepted: 11/07/2023] [Indexed: 11/26/2023] Open
Abstract
This study sought to evaluate the expression of previously identified microRNAs known to regulate neuronal differentiation in mesenchymal stem cells (MSCs), including miR-27, miR-125, miR-128, miR-135, miR-140, miR-145, miR-218 and miR-410, among dental pulp stem cells (DPSCs) under conditions demonstrated to induce neuronal differentiation. Using an approved protocol, n = 12 DPSCs were identified from an existing biorepository and treated with basic fibroblast growth factor (bFGF) and epidermal growth factor (EGF), which were previously demonstrated to induce neural differentiation markers including Sox1, Pax6 and NFM among these DPSCs. This study revealed that some microRNAs involved in the neuronal differentiation of MSCs were also differentially expressed among the DPSCs, including miR-27 and miR-145. In addition, this study also revealed that administration of bFGF and EGF was sufficient to modulate miR-27 and miR-145 expression in all of the stimulus-responsive DPSCs but not among all of the non-responsive DPSCs-suggesting that further investigation of the downstream targets of these microRNAs may be needed to fully evaluate and understand these observations.
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Affiliation(s)
- Charlton Bassett
- School of Medicine, University of Nevada, Las Vegas 1700 West Charleston Boulevard, Las Vegas, NV 89106, USA; (C.B.); (H.T.); (K.L.)
| | - Hunter Triplett
- School of Medicine, University of Nevada, Las Vegas 1700 West Charleston Boulevard, Las Vegas, NV 89106, USA; (C.B.); (H.T.); (K.L.)
| | - Keegan Lott
- School of Medicine, University of Nevada, Las Vegas 1700 West Charleston Boulevard, Las Vegas, NV 89106, USA; (C.B.); (H.T.); (K.L.)
| | - Katherine M. Howard
- School of Dental Medicine, University of Nevada, Las Vegas 1001 Shadow Lane, Las Vegas, NV 89106, USA;
| | - Karl Kingsley
- School of Dental Medicine, University of Nevada, Las Vegas 1001 Shadow Lane, Las Vegas, NV 89106, USA;
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Sato H, Kohyama K, Uchibori T, Takanari K, Huard J, Badylak SF, D'Amore A, Wagner WR. Creating and Transferring an Innervated, Vascularized Muscle Flap Made from an Elastic, Cellularized Tissue Construct Developed In Situ. Adv Healthc Mater 2023; 12:e2301335. [PMID: 37499214 DOI: 10.1002/adhm.202301335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 07/21/2023] [Indexed: 07/29/2023]
Abstract
Reanimating facial structures following paralysis and muscle loss is a surgical objective that would benefit from improved options for harvesting appropriately sized muscle flaps. The objective of this study is to apply electrohydrodynamic processing to generate a cellularized, elastic, biocomposite scaffold that could develop and mature as muscle in a prepared donor site in vivo, and then be transferred as a thin muscle flap with a vascular and neural pedicle. First, an effective extracellular matrix (ECM) gel type is selected for the biocomposite scaffold from three types of ECM combined with poly(ester urethane)urea microfibers and evaluated in rat abdominal wall defects. Next, two types of precursor cells (muscle-derived and adipose-derived) are compared in constructs placed in rat hind limb defects for muscle regeneration capacity. Finally, with a construct made from dermal ECM and muscle-derived stem cells, protoflaps are implanted in one hindlimb for development and then microsurgically transferred as a free flap to the contralateral limb where stimulated muscle function is confirmed. This construct generation and in vivo incubation procedure may allow the generation of small-scale muscle flaps appropriate for transfer to the face, offering a new strategy for facial reanimation.
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Affiliation(s)
- Hideyoshi Sato
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology Dr., Pittsburgh, PA, 15219, USA
| | - Keishi Kohyama
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology Dr., Pittsburgh, PA, 15219, USA
| | - Takafumi Uchibori
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology Dr., Pittsburgh, PA, 15219, USA
| | - Keisuke Takanari
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology Dr., Pittsburgh, PA, 15219, USA
| | - Johnny Huard
- Center for Regenerative Sports Medicine, Steadman Philippon Research Institute, 181 West Meadow Dr., Vail, CO, 81657, USA
| | - Stephen F Badylak
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology Dr., Pittsburgh, PA, 15219, USA
- Department of Surgery, University of Pittsburgh, 200 Lothrop Street, Pittsburgh, PA, 15213, USA
- Department of Bioengineering, University of Pittsburgh, 3700 O'Hara Street, Benedum Hall of Engineering, Pittsburgh, PA, 15261, USA
| | - Antonio D'Amore
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology Dr., Pittsburgh, PA, 15219, USA
- Department of Surgery, University of Pittsburgh, 200 Lothrop Street, Pittsburgh, PA, 15213, USA
- Department of Bioengineering, University of Pittsburgh, 3700 O'Hara Street, Benedum Hall of Engineering, Pittsburgh, PA, 15261, USA
- Fondazione Ri.MED, Palermo, 90133, Italy
| | - William R Wagner
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology Dr., Pittsburgh, PA, 15219, USA
- Department of Surgery, University of Pittsburgh, 200 Lothrop Street, Pittsburgh, PA, 15213, USA
- Department of Bioengineering, University of Pittsburgh, 3700 O'Hara Street, Benedum Hall of Engineering, Pittsburgh, PA, 15261, USA
- Department of Chemical Engineering, University of Pittsburgh, 3700 O'Hara Street, Benedum Hall of Engineering, Pittsburgh, PA, 15261, USA
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7
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Jiang Z, Zhang W, Liu C, Xia L, Wang S, Wang Y, Shao K, Han B. Facilitation of Cell Cycle and Cellular Migration of Rat Schwann Cells by O-Carboxymethyl Chitosan to Support Peripheral Nerve Regeneration. Macromol Biosci 2023; 23:e2300025. [PMID: 37282815 DOI: 10.1002/mabi.202300025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 04/03/2023] [Indexed: 06/08/2023]
Abstract
O-carboxymethyl chitosan (CM-chitosan), holds high potential as a valuable biomaterial for nerve guidance conduits (NGCs). However, the lack of explicit bioactivity on neurocytes and poor duration that does not match nerve repair limit the restorative effects. Herein, CM-chitosan-based NGC is designed to induce the reconstruction of damaged peripheral nerves without addition of other activation factors. CM-chitosan possesses excellent performance in vitro for nerve tissue engineering, such as increasing the organization of filamentous actin and the expression of phospho-Akt, and facilitating the cell cycle and migration of Schwann cells. Moreover, CM-chitosan exhibits increased longevity upon cross-linking (C-CM-chitosan) with 1, 4-Butanediol diglycidyl ether, and C-CM-chitosan fibers possess appropriate biocompatibility. In order to imitate the structure of peripheral nerves, multichannel bioactive NGCs are prepared from lumen fillers of oriented C-CM-chitosan fibers and outer warp-knitted chitosan pipeline. Implantation of the C-CM-chitosan NGCs to rats with 10-mm defects of peripheral nerves effectively improve nerve function reconstruction by increasing the sciatic functional index, decreasing the latent periods of heat tingling, enhancing the gastrocnemius muscle, and promoting nerve axon recovery, showing regenerative efficacy similar to that of autograft. The results lay a theoretical foundation for improving the potential high-value applications of CM-chitosan-based bioactive materials in nerve tissue engineering.
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Affiliation(s)
- Zhiwen Jiang
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, P. R. China
| | - Wei Zhang
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, P. R. China
| | - Chenqi Liu
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, P. R. China
| | - Lixin Xia
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, P. R. China
| | - Shuo Wang
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, P. R. China
| | - Yanting Wang
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, P. R. China
| | - Kai Shao
- Department of Central Laboratory, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, 266035, P. R. China
| | - Baoqin Han
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, P. R. China
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8
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Ladhari S, Vu NN, Boisvert C, Saidi A, Nguyen-Tri P. Recent Development of Polyhydroxyalkanoates (PHA)-Based Materials for Antibacterial Applications: A Review. ACS APPLIED BIO MATERIALS 2023; 6:1398-1430. [PMID: 36912908 DOI: 10.1021/acsabm.3c00078] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
Abstract
The diseases caused by microorganisms are innumerable existing on this planet. Nevertheless, increasing antimicrobial resistance has become an urgent global challenge. Thus, in recent decades, bactericidal materials have been considered promising candidates to combat bacterial pathogens. Recently, polyhydroxyalkanoates (PHAs) have been used as green and biodegradable materials in various promising alternative applications, especially in healthcare for antiviral or antiviral purposes. However, it lacks a systematic review of the recent application of this emerging material for antibacterial applications. Therefore, the ultimate goal of this review is to provide a critical review of the state of the art recent development of PHA biopolymers in terms of cutting-edge production technologies as well as promising application fields. In addition, special attention was given to collecting scientific information on antibacterial agents that can potentially be incorporated into PHA materials for biological and durable antimicrobial protection. Furthermore, the current research gaps are declared, and future research perspectives are proposed to better understand the properties of these biopolymers as well as their possible applications.
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Affiliation(s)
- Safa Ladhari
- Department of Chemistry, Biochemistry and Physics, Université du Québec à Trois-Rivières (UQTR), 3351 Boulevard des Forges, Trois-Rivières, Québec G8Z 4M3, Canada.,Laboratory of Advanced Materials for Energy and Environment, Université du Québec à Trois-Rivières (UQTR), 3351 Boulevard des Forges, Trois-Rivières, Québec G8Z 4M3, Canada
| | - Nhu-Nang Vu
- Department of Chemistry, Biochemistry and Physics, Université du Québec à Trois-Rivières (UQTR), 3351 Boulevard des Forges, Trois-Rivières, Québec G8Z 4M3, Canada.,Laboratory of Advanced Materials for Energy and Environment, Université du Québec à Trois-Rivières (UQTR), 3351 Boulevard des Forges, Trois-Rivières, Québec G8Z 4M3, Canada
| | - Cédrik Boisvert
- Department of Chemistry, Biochemistry and Physics, Université du Québec à Trois-Rivières (UQTR), 3351 Boulevard des Forges, Trois-Rivières, Québec G8Z 4M3, Canada.,Laboratory of Advanced Materials for Energy and Environment, Université du Québec à Trois-Rivières (UQTR), 3351 Boulevard des Forges, Trois-Rivières, Québec G8Z 4M3, Canada
| | - Alireza Saidi
- Laboratory of Advanced Materials for Energy and Environment, Université du Québec à Trois-Rivières (UQTR), 3351 Boulevard des Forges, Trois-Rivières, Québec G8Z 4M3, Canada.,Institut de Recherche Robert-Sauvé en Santé et Sécurité du Travail (IRSST), 505 Boulevard de Maisonneuve Ouest, Montréal, Québec H3A 3C2, Canada
| | - Phuong Nguyen-Tri
- Department of Chemistry, Biochemistry and Physics, Université du Québec à Trois-Rivières (UQTR), 3351 Boulevard des Forges, Trois-Rivières, Québec G8Z 4M3, Canada.,Laboratory of Advanced Materials for Energy and Environment, Université du Québec à Trois-Rivières (UQTR), 3351 Boulevard des Forges, Trois-Rivières, Québec G8Z 4M3, Canada
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9
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Lee SY, Thow SY, Abdullah S, Ng MH, Mohamed Haflah NH. Advancement of Electrospun Nerve Conduit for Peripheral Nerve Regeneration: A Systematic Review (2016-2021). Int J Nanomedicine 2022; 17:6723-6758. [PMID: 36600878 PMCID: PMC9805954 DOI: 10.2147/ijn.s362144] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 11/05/2022] [Indexed: 12/29/2022] Open
Abstract
Peripheral nerve injury (PNI) is a worldwide problem which hugely affects the quality of patients' life. Nerve conduits are now the alternative for treatment of PNI to mimic the gold standard, autologous nerve graft. In that case, with the advantages of electrospun micro- or nano-fibers nerve conduit, the peripheral nerve growth can be escalated, in a better way. In this systematic review, we focused on 39 preclinical studies of electrospun nerve conduit, which include the in vitro and in vivo evaluation from animal peripheral nerve defect models, to provide an update on the progress of the development of electrospun nerve conduit over the last 5 years (2016-2021). The physical characteristics, biocompatibility, functional and morphological outcomes of nerve conduits from different studies would be compared, to give a better strategy for treatment of PNI.
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Affiliation(s)
- Shin Yee Lee
- Centre of Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, Kuala Lumpur
| | - Soon Yong Thow
- Department of Orthopedics and Traumatology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, Kuala Lumpur
| | - Shalimar Abdullah
- Department of Orthopedics and Traumatology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, Kuala Lumpur
| | - Min Hwei Ng
- Centre of Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, Kuala Lumpur
| | - Nor Hazla Mohamed Haflah
- Department of Orthopedics and Traumatology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, Kuala Lumpur,Correspondence: Nor Hazla Mohamed Haflah, Department of Orthopedic & Traumatology’s Faculty of Medicine, UKM, Cheras, Kuala Lumpur, Tel +6012-3031316, Email
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10
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Al-Maswary AA, O’Reilly M, Holmes AP, Walmsley AD, Cooper PR, Scheven BA. Exploring the neurogenic differentiation of human dental pulp stem cells. PLoS One 2022; 17:e0277134. [PMID: 36331951 PMCID: PMC9635714 DOI: 10.1371/journal.pone.0277134] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 10/20/2022] [Indexed: 11/06/2022] Open
Abstract
Human dental pulp stem cells (hDPSCs) have increasingly gained interest as a potential therapy for nerve regeneration in medicine and dentistry, however their neurogenic potential remains a matter of debate. This study aimed to characterize hDPSC neuronal differentiation in comparison with the human SH-SY5Y neuronal stem cell differentiation model. Both hDPSCs and SH-SY5Y could be differentiated to generate typical neuronal-like cells following sequential treatment with all-trans retinoic acid (ATRA) and brain-derived neurotrophic factor (BDNF), as evidenced by significant expression of neuronal proteins βIII-tubulin (TUBB3) and neurofilament medium (NF-M). Both cell types also expressed multiple neural gene markers including growth-associated protein 43 (GAP43), enolase 2/neuron-specific enolase (ENO2/NSE), synapsin I (SYN1), nestin (NES), and peripherin (PRPH), and exhibited measurable voltage-activated Na+ and K+ currents. In hDPSCs, upregulation of acetylcholinesterase (ACHE), choline O-acetyltransferase (CHAT), sodium channel alpha subunit 9 (SCN9A), POU class 4 homeobox 1 (POU4F1/BRN3A) along with a downregulation of motor neuron and pancreas homeobox 1 (MNX1) indicated that differentiation was more guided toward a cholinergic sensory neuronal lineage. Furthermore, the Extracellular signal-regulated kinase 1/2 (ERK1/2) inhibitor U0126 significantly impaired hDPSC neuronal differentiation and was associated with reduction of the ERK1/2 phosphorylation. In conclusion, this study demonstrates that extracellular signal-regulated kinase/Mitogen-activated protein kinase (ERK/MAPK) is necessary for sensory cholinergic neuronal differentiation of hDPSCs. hDPSC-derived cholinergic sensory neuronal-like cells represent a novel model and potential source for neuronal regeneration therapies.
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Affiliation(s)
- Arwa A. Al-Maswary
- School of Dentistry, Institute of Clinical Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
- * E-mail: , (AAA-M); (BAS)
| | - Molly O’Reilly
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Andrew P. Holmes
- Institute of Cardiovascular Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - A. Damien Walmsley
- School of Dentistry, Institute of Clinical Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Paul R. Cooper
- School of Dentistry, Institute of Clinical Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
- Faculty of Dentistry, Sir John Walsh Research Institute, University of Otago, Dunedin, New Zealand
| | - Ben A. Scheven
- School of Dentistry, Institute of Clinical Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
- * E-mail: , (AAA-M); (BAS)
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11
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Khan HM, Liao X, Sheikh BA, Wang Y, Su Z, Guo C, Li Z, Zhou C, Cen Y, Kong Q. Smart biomaterials and their potential applications in tissue engineering. J Mater Chem B 2022; 10:6859-6895. [PMID: 36069198 DOI: 10.1039/d2tb01106a] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Smart biomaterials have been rapidly advancing ever since the concept of tissue engineering was proposed. Interacting with human cells, smart biomaterials can play a key role in novel tissue morphogenesis. Various aspects of biomaterials utilized in or being sought for the goal of encouraging bone regeneration, skin graft engineering, and nerve conduits are discussed in this review. Beginning with bone, this study summarizes all the available bioceramics and materials along with their properties used singly or in conjunction with each other to create scaffolds for bone tissue engineering. A quick overview of the skin-based nanocomposite biomaterials possessing antibacterial properties for wound healing is outlined along with skin regeneration therapies using infrared radiation, electrospinning, and piezoelectricity, which aid in wound healing. Furthermore, a brief overview of bioengineered artificial skin grafts made of various natural and synthetic polymers has been presented. Finally, by examining the interactions between natural and synthetic-based biomaterials and the biological environment, their strengths and drawbacks for constructing peripheral nerve conduits are highlighted. The description of the preclinical outcome of nerve regeneration in injury healed with various natural-based conduits receives special attention. The organic and synthetic worlds collide at the interface of nanomaterials and biological systems, producing a new scientific field including nanomaterial design for tissue engineering.
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Affiliation(s)
- Haider Mohammed Khan
- Department of Orthopedics, West China Hospital, Sichuan University, 610041, Chengdu, China.
| | - Xiaoxia Liao
- Department of Burn and Plastic Surgery, West China School of Medicine, West China Hospital, Sichuan University, 610041, Chengdu, China.
| | - Bilal Ahmed Sheikh
- Department of Orthopedics, West China Hospital, Sichuan University, 610041, Chengdu, China.
| | - Yixi Wang
- Department of Burn and Plastic Surgery, West China School of Medicine, West China Hospital, Sichuan University, 610041, Chengdu, China.
| | - Zhixuan Su
- College of Biomedical Engineering, Sichuan University, Chengdu 610064, China.,National Engineering Research Centre for Biomaterials, Sichuan University, Chengdu 610064, China.
| | - Chuan Guo
- Department of Orthopedics, West China Hospital, Sichuan University, 610041, Chengdu, China.
| | - Zhengyong Li
- Department of Burn and Plastic Surgery, West China School of Medicine, West China Hospital, Sichuan University, 610041, Chengdu, China.
| | - Changchun Zhou
- College of Biomedical Engineering, Sichuan University, Chengdu 610064, China.,National Engineering Research Centre for Biomaterials, Sichuan University, Chengdu 610064, China.
| | - Ying Cen
- Department of Burn and Plastic Surgery, West China School of Medicine, West China Hospital, Sichuan University, 610041, Chengdu, China.
| | - Qingquan Kong
- Department of Orthopedics, West China Hospital, Sichuan University, 610041, Chengdu, China.
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12
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Wang Y, Yu T, Hu F. Hypocapnia Stimuli-Responsive Engineered Exosomes Delivering miR-218 Facilitate Sciatic Nerve Regeneration. Front Bioeng Biotechnol 2022; 10:825146. [PMID: 35211463 PMCID: PMC8861458 DOI: 10.3389/fbioe.2022.825146] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 01/17/2022] [Indexed: 12/12/2022] Open
Abstract
Therapeutic strategies of microRNAs (miRNAs) and exosomes have been systematically explored as an enhancing application by paracrine and modulating cellular activity after internalization of recipient cells in vitro, and progressively developed to meet the requirements of peripheral nerve regeneration in vivo. However, how to obtain exosomes with superior properties and effectively deliver miRNAs becomes a key challenge. Hypocapnia environment might play unexpected outcomes in strengthening exosome function when culturing adipose-derived stem cells (ASCs). Previously, we discovered the intensive regulation of miR-218 on the differentiation of ASCs. In the present study, we analyzed the functional differences of secreted exosomes in response to hypocapnia stimulation, and explored the application in combination with miR-218 to facilitate sciatic nerve regeneration. Our results indicated that the delivery system of engineered exosomes derived from ASCs remarkably loads upregulated miR-218 and promotes cellular activity in the recipient cells (PC12 cells), and hypocapnia stimuli-responsive exosomes exhibit strengthening properties. Furthermore, in a sciatic nerve injury model, exosomes delivering miR-218 combined with engineered scaffold facilitated the regeneration of injured sciatic nerves. In the hypocapnia-stimulated exosome group, more encouraging promotion was revealed on the regeneration of motor and nerve fibers. Hypoc-miR-218-ASC exosomes are suggested as a promising cell-free strategy for peripheral nerve repair.
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Affiliation(s)
- Yingshuai Wang
- School of Lifescience and Technology, Weifang Medical University, Weifang, China
| | - Tao Yu
- School of Lifescience and Technology, Weifang Medical University, Weifang, China
| | - Feihu Hu
- School of Lifescience and Technology, Weifang Medical University, Weifang, China
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13
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Hamdan N, Yamin A, Hamid SA, Khodir WKWA, Guarino V. Functionalized Antimicrobial Nanofibers: Design Criteria and Recent Advances. J Funct Biomater 2021; 12:59. [PMID: 34842715 PMCID: PMC8628998 DOI: 10.3390/jfb12040059] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 10/21/2021] [Accepted: 10/26/2021] [Indexed: 12/13/2022] Open
Abstract
The rise of antibiotic resistance has become a major threat to human health and it is spreading globally. It can cause common infectious diseases to be difficult to treat and leads to higher medical costs and increased mortality. Hence, multifunctional polymeric nanofibers with distinctive structures and unique physiochemical properties have emerged as a neo-tool to target biofilm and overcome deadly bacterial infections. This review emphasizes electrospun nanofibers' design criteria and properties that can be utilized to enhance their therapeutic activity for antimicrobial therapy. Also, we present recent progress in designing the surface functionalization of antimicrobial nanofibers with non-antibiotic agents for effective antibacterial therapy. Lastly, we discuss the future trends and remaining challenges for polymeric nanofibers.
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Affiliation(s)
- Nazirah Hamdan
- Department of Chemistry, Kulliyyah of Science, International Islamic University Malaysia Kuantan Campus, Bandar Indera Mahkota, Kuantan 25200, Malaysia; (N.H.); (A.Y.); (S.A.H.)
| | - Alisa Yamin
- Department of Chemistry, Kulliyyah of Science, International Islamic University Malaysia Kuantan Campus, Bandar Indera Mahkota, Kuantan 25200, Malaysia; (N.H.); (A.Y.); (S.A.H.)
| | - Shafida Abd Hamid
- Department of Chemistry, Kulliyyah of Science, International Islamic University Malaysia Kuantan Campus, Bandar Indera Mahkota, Kuantan 25200, Malaysia; (N.H.); (A.Y.); (S.A.H.)
- SYNTOF, Kulliyyah of Science, International Islamic University Malaysia Kuantan Campus, Bandar Indera Mahkota, Kuantan 25200, Malaysia
| | - Wan Khartini Wan Abdul Khodir
- Department of Chemistry, Kulliyyah of Science, International Islamic University Malaysia Kuantan Campus, Bandar Indera Mahkota, Kuantan 25200, Malaysia; (N.H.); (A.Y.); (S.A.H.)
- SYNTOF, Kulliyyah of Science, International Islamic University Malaysia Kuantan Campus, Bandar Indera Mahkota, Kuantan 25200, Malaysia
| | - Vincenzo Guarino
- Institute of Polymers, Composites and Biomaterials, National Research Council of Italy, Mostra d’Oltremare Pad.20, V.le J.F.Kennedy 54, 80125 Naples, Italy
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14
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Peripheral Nerve Regeneration Using Different Germ Layer-Derived Adult Stem Cells in the Past Decade. Behav Neurol 2021; 2021:5586523. [PMID: 34539934 PMCID: PMC8448597 DOI: 10.1155/2021/5586523] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 07/27/2021] [Accepted: 08/09/2021] [Indexed: 12/15/2022] Open
Abstract
Peripheral nerve injuries (PNIs) are some of the most common types of traumatic lesions affecting the nervous system. Although the peripheral nervous system has a higher regenerative ability than the central nervous system, delayed treatment is associated with disturbances in both distal sensory and functional abilities. Over the past decades, adult stem cell-based therapies for peripheral nerve injuries have drawn attention from researchers. This is because various stem cells can promote regeneration after peripheral nerve injuries by differentiating into neural-line cells, secreting various neurotrophic factors, and regulating the activity of in situ Schwann cells (SCs). This article reviewed research from the past 10 years on the role of stem cells in the repair of PNIs. We concluded that adult stem cell-based therapies promote the regeneration of PNI in various ways.
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15
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Zhao X, Niu Y, Mi C, Gong H, Yang X, Cheng J, Zhou Z, Liu J, Peng X, Wei D. Electrospinning nanofibers of microbial polyhydroxyalkanoates for applications in medical tissue engineering. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20210418] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Xiao‐Hong Zhao
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Medicine, Department of Life Sciences and Medicine Northwest University Xi'an China
| | - Yi‐Nuo Niu
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Medicine, Department of Life Sciences and Medicine Northwest University Xi'an China
| | - Chen‐Hui Mi
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Medicine, Department of Life Sciences and Medicine Northwest University Xi'an China
| | - Hai‐Lun Gong
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Medicine, Department of Life Sciences and Medicine Northwest University Xi'an China
| | - Xin‐Yu Yang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Medicine, Department of Life Sciences and Medicine Northwest University Xi'an China
| | - Ji‐Si‐Yu Cheng
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Medicine, Department of Life Sciences and Medicine Northwest University Xi'an China
| | - Zi‐Qi Zhou
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Medicine, Department of Life Sciences and Medicine Northwest University Xi'an China
| | - Jia‐Xuan Liu
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Medicine, Department of Life Sciences and Medicine Northwest University Xi'an China
| | - Xue‐Liang Peng
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Medicine, Department of Life Sciences and Medicine Northwest University Xi'an China
| | - Dai‐Xu Wei
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Medicine, Department of Life Sciences and Medicine Northwest University Xi'an China
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16
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Luo Y, Qiu W, Wu B, Fang F. An Overview of Mesenchymal Stem Cell-based Therapy Mediated by Noncoding RNAs in the Treatment of Neurodegenerative Diseases. Stem Cell Rev Rep 2021; 18:457-473. [PMID: 34347272 DOI: 10.1007/s12015-021-10206-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/11/2021] [Indexed: 12/11/2022]
Abstract
Mesenchymal stem cells (MSCs) have become a promising tool for neurorestorative therapy of neurodegenerative diseases (NDDs), which are mainly characterized by the progressive and irreversible loss of neuronal structure and function in the central or peripheral nervous system. Recently, studies have reported that genetic manipulation mediated by noncoding RNAs (ncRNAs) can increase survival and neural regeneration of transplanted MSCs, offering a new strategy for clinical translation. In this review, we summarize the potential role and regulatory mechanism of two major types of ncRNAs, including microRNAs (miRNAs) and long noncoding RNAs (lncRNAs), during the neurogenesis of MSCs with gene expression profile analyses. We also overview the realization of MSC-based therapy mediated by ncRNAs in the treatment of spinal cord injury, stroke, Alzheimer's disease and peripheral nerve injury. It is expected that ncRNAs will become promising therapeutic targets for NDD on stem cells, while the underlying mechanisms require further exploration.
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Affiliation(s)
- Yifei Luo
- Department of Stomatology, Nanfang Hospital, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou, 510515, People's Republic of China
| | - Wei Qiu
- Department of Stomatology, Nanfang Hospital, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou, 510515, People's Republic of China
| | - Buling Wu
- Department of Stomatology, Nanfang Hospital, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou, 510515, People's Republic of China
- Shenzhen Stomatology Hospital (Pingshan), Southern Medical University, 143 Dongzong Road, Pingshan District, Shenzhen, 518118, People's Republic of China
| | - Fuchun Fang
- Department of Stomatology, Nanfang Hospital, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou, 510515, People's Republic of China.
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17
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Carta G, Gambarotta G, Fornasari BE, Muratori L, El Soury M, Geuna S, Raimondo S, Fregnan F. The neurodynamic treatment induces biological changes in sensory and motor neurons in vitro. Sci Rep 2021; 11:13277. [PMID: 34168249 PMCID: PMC8225768 DOI: 10.1038/s41598-021-92682-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 06/14/2021] [Indexed: 11/08/2022] Open
Abstract
Nerves are subjected to tensile forces in various paradigms such as injury and regeneration, joint movement, and rehabilitation treatments, as in the case of neurodynamic treatment (NDT). The NDT induces selective uniaxial repeated tension on the nerve and was described to be an effective treatment to reduce pain in patients. Nevertheless, the biological mechanisms activated by the NDT promoting the healing processes of the nerve are yet still unknown. Moreover, a dose-response analysis to define a standard protocol of treatment is unavailable. In this study, we aimed to define in vitro whether NDT protocols could induce selective biological effects on sensory and motor neurons, also investigating the possible involved molecular mechanisms taking a role behind this change. The obtained results demonstrate that NDT induced significant dose-dependent changes promoting cell differentiation, neurite outgrowth, and neuron survival, especially in nociceptive neurons. Notably, NDT significantly upregulated PIEZO1 gene expression. A gene that is coding for an ion channel that is expressed both in murine and human sensory neurons and is related to mechanical stimuli transduction and pain suppression. Other genes involved in mechanical allodynia related to neuroinflammation were not modified by NDT. The results of the present study contribute to increase the knowledge behind the biological mechanisms activated in response to NDT and to understand its efficacy in improving nerve regenerational physiological processes and pain reduction.
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Affiliation(s)
- Giacomo Carta
- Department of Clinical and Biological Sciences, University of Torino, Regione Gonzole 10, 10043, Orbassano, Italy
- Neuroscience Institute Cavalieri Ottolenghi (NICO), University of Torino, Regione Gonzole 10, 10043, Orbassano, Italy
- ASST Nord Milano, Sesto San Giovanni Hospital, Milan, Italy
| | - Giovanna Gambarotta
- Department of Clinical and Biological Sciences, University of Torino, Regione Gonzole 10, 10043, Orbassano, Italy
- Neuroscience Institute Cavalieri Ottolenghi (NICO), University of Torino, Regione Gonzole 10, 10043, Orbassano, Italy
| | - Benedetta Elena Fornasari
- Department of Clinical and Biological Sciences, University of Torino, Regione Gonzole 10, 10043, Orbassano, Italy
- Neuroscience Institute Cavalieri Ottolenghi (NICO), University of Torino, Regione Gonzole 10, 10043, Orbassano, Italy
| | - Luisa Muratori
- Department of Clinical and Biological Sciences, University of Torino, Regione Gonzole 10, 10043, Orbassano, Italy
- Neuroscience Institute Cavalieri Ottolenghi (NICO), University of Torino, Regione Gonzole 10, 10043, Orbassano, Italy
| | - Marwa El Soury
- Department of Clinical and Biological Sciences, University of Torino, Regione Gonzole 10, 10043, Orbassano, Italy
- Neuroscience Institute Cavalieri Ottolenghi (NICO), University of Torino, Regione Gonzole 10, 10043, Orbassano, Italy
| | - Stefano Geuna
- Department of Clinical and Biological Sciences, University of Torino, Regione Gonzole 10, 10043, Orbassano, Italy
- Neuroscience Institute Cavalieri Ottolenghi (NICO), University of Torino, Regione Gonzole 10, 10043, Orbassano, Italy
| | - Stefania Raimondo
- Department of Clinical and Biological Sciences, University of Torino, Regione Gonzole 10, 10043, Orbassano, Italy.
- Neuroscience Institute Cavalieri Ottolenghi (NICO), University of Torino, Regione Gonzole 10, 10043, Orbassano, Italy.
| | - Federica Fregnan
- Department of Clinical and Biological Sciences, University of Torino, Regione Gonzole 10, 10043, Orbassano, Italy
- Neuroscience Institute Cavalieri Ottolenghi (NICO), University of Torino, Regione Gonzole 10, 10043, Orbassano, Italy
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18
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Cheng R, Cao Y, Yan Y, Shen Z, Zhao Y, Zhang Y, Sang S, Han Y. Fabrication and characterization of chitosan-based composite scaffolds for neural tissue engineering. INT J POLYM MATER PO 2021. [DOI: 10.1080/00914037.2021.1915783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Rong Cheng
- College of Information and Computer, MicroNano System Research Center, Key Lab of Advanced Transducers and Intelligent Control System of the Ministry of Education, Taiyuan University of Technology, Taiyuan, PR China
| | - Yanyan Cao
- College of Information and Computer, MicroNano System Research Center, Key Lab of Advanced Transducers and Intelligent Control System of the Ministry of Education, Taiyuan University of Technology, Taiyuan, PR China
- College of Information Science and Engineering, Hebei North University, Zhangjiakou, PR China
| | - Yayun Yan
- College of Information and Computer, MicroNano System Research Center, Key Lab of Advanced Transducers and Intelligent Control System of the Ministry of Education, Taiyuan University of Technology, Taiyuan, PR China
| | - Zhizhong Shen
- College of Information and Computer, MicroNano System Research Center, Key Lab of Advanced Transducers and Intelligent Control System of the Ministry of Education, Taiyuan University of Technology, Taiyuan, PR China
| | - Yajing Zhao
- College of Information and Computer, MicroNano System Research Center, Key Lab of Advanced Transducers and Intelligent Control System of the Ministry of Education, Taiyuan University of Technology, Taiyuan, PR China
| | - Yixia Zhang
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, PR China
| | - Shengbo Sang
- College of Information and Computer, MicroNano System Research Center, Key Lab of Advanced Transducers and Intelligent Control System of the Ministry of Education, Taiyuan University of Technology, Taiyuan, PR China
| | - Yanqing Han
- Department of Neurology, Shanxi Provincial Cardiovascular Hospital, Taiyuan, PR China
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19
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Adipose-Derived Stem Cells: Current Applications and Future Directions in the Regeneration of Multiple Tissues. Stem Cells Int 2020; 2020:8810813. [PMID: 33488736 PMCID: PMC7787857 DOI: 10.1155/2020/8810813] [Citation(s) in RCA: 72] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 11/04/2020] [Accepted: 11/27/2020] [Indexed: 12/11/2022] Open
Abstract
Adipose-derived stem cells (ADSCs) can maintain self-renewal and enhanced multidifferentiation potential through the release of a variety of paracrine factors and extracellular vesicles, allowing them to repair damaged organs and tissues. Consequently, considerable attention has increasingly been paid to their application in tissue engineering and organ regeneration. Here, we provide a comprehensive overview of the current status of ADSC preparation, including harvesting, isolation, and identification. The advances in preclinical and clinical evidence-based ADSC therapy for bone, cartilage, myocardium, liver, and nervous system regeneration as well as skin wound healing are also summarized. Notably, the perspectives, potential challenges, and future directions for ADSC-related researches are discussed. We hope that this review can provide comprehensive and standardized guidelines for the safe and effective application of ADSCs to achieve predictable and desired therapeutic effects.
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20
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Aburayan WS, Booq RY, BinSaleh NS, Alfassam HA, Bakr AA, Bukhary HA, Alyamani EJ, Tawfik EA. The Delivery of the Novel Drug 'Halicin' Using Electrospun Fibers for the Treatment of Pressure Ulcer against Pathogenic Bacteria. Pharmaceutics 2020; 12:pharmaceutics12121189. [PMID: 33302338 PMCID: PMC7762391 DOI: 10.3390/pharmaceutics12121189] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 12/03/2020] [Accepted: 12/04/2020] [Indexed: 12/19/2022] Open
Abstract
Pressure ulcer or bedsore is a form of skin infection that commonly occurs with patients admitted to the hospital for an extended period of time, which might lead to severe complications in the absence of medical attention, resulting in infection either by drug-sensitive or drug-resistant bacteria. Halicin, a newly discovered drug effective against several bacterial strains, including multidrug-resistant bacteria, was investigated to reduce bacterial infection burden. This study aims to formulate halicin into electrospun fibers to be applied in bedsores as antibacterial dressing to assess its efficacy against gram-positive (Staphylococcus aureus) and gram-negative bacteria (Escherichia coli and Acinetobacter baumannii) by studying the minimum inhibitory concentration (MIC) and bacterial zone of inhibition assays. The diameters of inhibition growth zones were measured, and the results have shown that the drug-loaded fibers were able to inhibit the growth of bacteria compared to the halicin discs. The release profile of the drug-loaded fibers exhibited a complete release of the drug after 2 h. The results demonstrated that the drug-loaded fibers could successfully release the drug while retaining their biological activity and they may be used as a potential antimicrobial dressing for patients with pressure ulcers caused by multidrug resistant bacteria.
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Affiliation(s)
- Walaa S. Aburayan
- National Center for Pharmaceutical Technology, King Abdulaziz City for Science and Technology (KACST), P.O. Box 6086, Riyadh 11442, Saudi Arabia; (W.S.A.); (N.S.B.)
| | - Rayan Y. Booq
- National Center of Biotechnology, King Abdulaziz City for Science and Technology (KACST), P.O. Box 6086, Riyadh 11442, Saudi Arabia; (R.Y.B.); (A.A.B.)
| | - Nouf S. BinSaleh
- National Center for Pharmaceutical Technology, King Abdulaziz City for Science and Technology (KACST), P.O. Box 6086, Riyadh 11442, Saudi Arabia; (W.S.A.); (N.S.B.)
| | - Haya A. Alfassam
- Center of Excellence for Biomedicine, King Abdulaziz City for Science and Technology (KACST), P.O. Box 6086, Riyadh 11442, Saudi Arabia;
| | - Abrar A. Bakr
- National Center of Biotechnology, King Abdulaziz City for Science and Technology (KACST), P.O. Box 6086, Riyadh 11442, Saudi Arabia; (R.Y.B.); (A.A.B.)
| | - Haitham A. Bukhary
- Department of Pharmaceutics, College of Pharmacy, Umm Al-Qura University, Makkah 24381, Saudi Arabia;
| | - Essam J. Alyamani
- National Center of Biotechnology, King Abdulaziz City for Science and Technology (KACST), P.O. Box 6086, Riyadh 11442, Saudi Arabia; (R.Y.B.); (A.A.B.)
- Correspondence: (E.J.A.); (E.A.T.)
| | - Essam A. Tawfik
- National Center for Pharmaceutical Technology, King Abdulaziz City for Science and Technology (KACST), P.O. Box 6086, Riyadh 11442, Saudi Arabia; (W.S.A.); (N.S.B.)
- Correspondence: (E.J.A.); (E.A.T.)
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21
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Meena P, Kakkar A, Kumar M, Khatri N, Nagar RK, Singh A, Malhotra P, Shukla M, Saraswat SK, Srivastava S, Datt R, Pandey S. Advances and clinical challenges for translating nerve conduit technology from bench to bed side for peripheral nerve repair. Cell Tissue Res 2020; 383:617-644. [PMID: 33201351 DOI: 10.1007/s00441-020-03301-x] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 09/14/2020] [Indexed: 12/19/2022]
Abstract
Injuries to the peripheral nervous system remain a large-scale clinical problem. These injuries often lead to loss of motor and/or sensory function that significantly affects patients' quality of life. The current neurosurgical approach for peripheral nerve repair involves autologous nerve transplantation, which often leads to clinical complications. The most pressing need is to increase the regenerative capacity of existing tubular constructs in the repair of large nerve gaps through development of tissue-engineered approaches that can surpass the performance of autografts. To fully realize the clinical potential of nerve conduit technology, there is a need to reconsider design strategies, biomaterial selection, fabrication techniques and the various potential modifications to optimize a conduit microenvironment that can best mimic the natural process of regeneration. In recent years, a significant progress has been made in the designing and functionality of bioengineered nerve conduits to bridge long peripheral nerve gaps in various animal models. However, translation of this work from lab to commercial scale has not been achieve. The current review summarizes recent advances in the development of tissue engineered nerve guidance conduits (NGCs) with regard to choice of material, novel fabrication methods, surface modifications and regenerative cues such as stem cells and growth factors to improve regeneration performance. Also, the current clinical potential and future perspectives to achieve therapeutic benefits of NGCs will be discussed in context of peripheral nerve regeneration.
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Affiliation(s)
- Poonam Meena
- Department of Life Sciences, Datt Mediproducts Pvt. Ltd., Roz Ka Meo Industrial Area, District Mewat, Nuh, 122103, District Haryana, India
| | - Anupama Kakkar
- Department of Life Sciences, Datt Mediproducts Pvt. Ltd., Roz Ka Meo Industrial Area, District Mewat, Nuh, 122103, District Haryana, India
| | - Mukesh Kumar
- Department of Life Sciences, Datt Mediproducts Pvt. Ltd., Roz Ka Meo Industrial Area, District Mewat, Nuh, 122103, District Haryana, India
| | - Nitin Khatri
- Department of Life Sciences, Datt Mediproducts Pvt. Ltd., Roz Ka Meo Industrial Area, District Mewat, Nuh, 122103, District Haryana, India
| | - Rakesh Kumar Nagar
- Department of Life Sciences, Datt Mediproducts Pvt. Ltd., Roz Ka Meo Industrial Area, District Mewat, Nuh, 122103, District Haryana, India
| | - Aarti Singh
- Department of Life Sciences, Datt Mediproducts Pvt. Ltd., Roz Ka Meo Industrial Area, District Mewat, Nuh, 122103, District Haryana, India
| | - Poonam Malhotra
- Department of Life Sciences, Datt Mediproducts Pvt. Ltd., Roz Ka Meo Industrial Area, District Mewat, Nuh, 122103, District Haryana, India
| | - Manish Shukla
- Department of Life Sciences, Datt Mediproducts Pvt. Ltd., Roz Ka Meo Industrial Area, District Mewat, Nuh, 122103, District Haryana, India
| | - Sumit Kumar Saraswat
- Department of Life Sciences, Datt Mediproducts Pvt. Ltd., Roz Ka Meo Industrial Area, District Mewat, Nuh, 122103, District Haryana, India
| | - Supriya Srivastava
- Department of Life Sciences, Datt Mediproducts Pvt. Ltd., Roz Ka Meo Industrial Area, District Mewat, Nuh, 122103, District Haryana, India
| | - Rajan Datt
- Department of Life Sciences, Datt Mediproducts Pvt. Ltd., Roz Ka Meo Industrial Area, District Mewat, Nuh, 122103, District Haryana, India
| | - Siddharth Pandey
- Department of Life Sciences, Datt Mediproducts Pvt. Ltd., Roz Ka Meo Industrial Area, District Mewat, Nuh, 122103, District Haryana, India.
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22
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Sharma A, Puri V, Kumar P, Singh I. Biopolymeric, Nanopatterned, Fibrous Carriers for Wound Healing Applications. Curr Pharm Des 2020; 26:4894-4908. [DOI: 10.2174/1381612826666200701152217] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Accepted: 04/11/2020] [Indexed: 12/15/2022]
Abstract
Background:
Any sort of wound injury leads to skin integrity and further leads to wound formation.
Millions of deaths are reported every year, which contributes to an economical hamper world widely, this accounts
for 10% of death rate that insight into various diseases.
Current Methodology:
Rapid wound healing plays an important role in effective health care. Wound healing is a
multi-factorial physiological process, which helps in the growth of new tissue to render the body with the imperative
barrier from the external environment. The complexity of this phenomenon makes it prone to several abnormalities.
Wound healing, as a normal biological inherent process occurs in the body, which is reaped through four
highly defined programmed phases, such as hemostasis, inflammation, proliferation, and remodeling and these
phases occur in the proper progression. An overview, types, and classification of wounds along with the stages of
wound healing and various factors affecting wound healing have been discussed systematically. Various biopolymers
are reported for developing nanofibers and microfibers in wound healing, which can be used as a therapeutic
drug delivery for wound healing applications. Biopolymers are relevant for biomedical purposes owing to
biodegradability, biocompatibility, and non- toxicity. Biopolymers such as polysaccharides, proteins and various
gums are used for wound healing applications. Patents and future perspectives have been given in the concluding
part of the manuscript. Overall, applications of biopolymers in the development of fibers and their applications in
wound healing are gaining interest in researchers to develop modified biopolymers and tunable delivery systems
for effective management and care of different types of wounds.
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Affiliation(s)
- Ameya Sharma
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Vivek Puri
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Pradeep Kumar
- Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa
| | - Inderbir Singh
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
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23
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Fornasari BE, Carta G, Gambarotta G, Raimondo S. Natural-Based Biomaterials for Peripheral Nerve Injury Repair. Front Bioeng Biotechnol 2020; 8:554257. [PMID: 33178670 PMCID: PMC7596179 DOI: 10.3389/fbioe.2020.554257] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 09/23/2020] [Indexed: 01/18/2023] Open
Abstract
Peripheral nerve injury treatment is a relevant problem because of nerve lesion high incidence and because of unsatisfactory regeneration after severe injuries, thus resulting in a reduced patient's life quality. To repair severe nerve injuries characterized by substance loss and to improve the regeneration outcome at both motor and sensory level, different strategies have been investigated. Although autograft remains the gold standard technique, a growing number of research articles concerning nerve conduit use has been reported in the last years. Nerve conduits aim to overcome autograft disadvantages, but they must satisfy some requirements to be suitable for nerve repair. A universal ideal conduit does not exist, since conduit properties have to be evaluated case by case; nevertheless, because of their high biocompatibility and biodegradability, natural-based biomaterials have great potentiality to be used to produce nerve guides. Although they share many characteristics with synthetic biomaterials, natural-based biomaterials should also be preferable because of their extraction sources; indeed, these biomaterials are obtained from different renewable sources or food waste, thus reducing environmental impact and enhancing sustainability in comparison to synthetic ones. This review reports the strengths and weaknesses of natural-based biomaterials used for manufacturing peripheral nerve conduits, analyzing the interactions between natural-based biomaterials and biological environment. Particular attention was paid to the description of the preclinical outcome of nerve regeneration in injury repaired with the different natural-based conduits.
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Affiliation(s)
- Benedetta E Fornasari
- Department of Clinical and Biological Sciences, University of Turin, Turin, Italy.,Neuroscience Institute Cavalieri Ottolenghi, University of Turin, Turin, Italy
| | - Giacomo Carta
- Department of Clinical and Biological Sciences, University of Turin, Turin, Italy.,Neuroscience Institute Cavalieri Ottolenghi, University of Turin, Turin, Italy
| | - Giovanna Gambarotta
- Department of Clinical and Biological Sciences, University of Turin, Turin, Italy.,Neuroscience Institute Cavalieri Ottolenghi, University of Turin, Turin, Italy
| | - Stefania Raimondo
- Department of Clinical and Biological Sciences, University of Turin, Turin, Italy.,Neuroscience Institute Cavalieri Ottolenghi, University of Turin, Turin, Italy
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24
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Han Y, Li X, Zhang Y, Han Y, Chang F, Ding J. Mesenchymal Stem Cells for Regenerative Medicine. Cells 2019; 8:E886. [PMID: 31412678 PMCID: PMC6721852 DOI: 10.3390/cells8080886] [Citation(s) in RCA: 603] [Impact Index Per Article: 120.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 08/05/2019] [Accepted: 08/06/2019] [Indexed: 02/06/2023] Open
Abstract
In recent decades, the biomedical applications of mesenchymal stem cells (MSCs) have attracted increasing attention. MSCs are easily extracted from the bone marrow, fat, and synovium, and differentiate into various cell lineages according to the requirements of specific biomedical applications. As MSCs do not express significant histocompatibility complexes and immune stimulating molecules, they are not detected by immune surveillance and do not lead to graft rejection after transplantation. These properties make them competent biomedical candidates, especially in tissue engineering. We present a brief overview of MSC extraction methods and subsequent potential for differentiation, and a comprehensive overview of their preclinical and clinical applications in regenerative medicine, and discuss future challenges.
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Affiliation(s)
- Yu Han
- Department of Orthopedics, The Second Hospital of Jilin University, 218 Ziqiang Street, Changchun 130041, China
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China
| | - Xuezhou Li
- Department of Orthopedics, The Second Hospital of Jilin University, 218 Ziqiang Street, Changchun 130041, China
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China
| | - Yanbo Zhang
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, 126 Xiantai Street, Changchun 130033, China.
| | - Yuping Han
- Department of Urology, China-Japan Union Hospital of Jilin University, 126 Xiantai Street, Changchun 130033, China.
| | - Fei Chang
- Department of Orthopedics, The Second Hospital of Jilin University, 218 Ziqiang Street, Changchun 130041, China.
| | - Jianxun Ding
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China
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25
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Abu-Ghname A, Perdanasari AT, Reece EM. Principles and Applications of Fat Grafting in Plastic Surgery. Semin Plast Surg 2019; 33:147-154. [PMID: 31384229 DOI: 10.1055/s-0039-1693438] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Autologous fat transplantation has become increasingly popular in recent years. Its biocompatable properties and availability made it a widely used treatment modality for soft tissue augmentation and volume replacement in both reconstructive and aesthetic plastic surgery. Multiple protocols and clinical applications have been described in the literature, with wide variations in the harvesting, processing, and injection techniques. In this review, the authors will discuss the basic principles and clinical applications of fat grafting in plastic and reconstructive surgery. The article will then conclude with a discussion of fat grafting limitations as well as potential future applications, giving the reader a well-rounded understanding of autologous fat transfer.
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Affiliation(s)
- Amjed Abu-Ghname
- Division of Plastic Surgery, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Texas
| | | | - Edward M Reece
- Division of Plastic Surgery, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, Texas
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26
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Carvalho CR, Silva-Correia J, Oliveira JM, Reis RL. Nanotechnology in peripheral nerve repair and reconstruction. Adv Drug Deliv Rev 2019; 148:308-343. [PMID: 30639255 DOI: 10.1016/j.addr.2019.01.006] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 09/20/2018] [Accepted: 01/05/2019] [Indexed: 02/07/2023]
Affiliation(s)
- Cristiana R Carvalho
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017, Barco, Guimarães, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal; The Discoveries Centre for Regenerative and Precision Medicine, Headquarters at University of Minho, AvePark, 4805-017 Barco, Guimarães, Portugal
| | - Joana Silva-Correia
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017, Barco, Guimarães, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Joaquim M Oliveira
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017, Barco, Guimarães, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal; The Discoveries Centre for Regenerative and Precision Medicine, Headquarters at University of Minho, AvePark, 4805-017 Barco, Guimarães, Portugal
| | - Rui L Reis
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, Zona Industrial da Gandra, 4805-017, Barco, Guimarães, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga/Guimarães, Portugal; The Discoveries Centre for Regenerative and Precision Medicine, Headquarters at University of Minho, AvePark, 4805-017 Barco, Guimarães, Portugal.
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27
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Passipieri JA, Dienes J, Frank J, Glazier J, Portell A, Venkatesh KP, Bliley JM, Grybowski D, Schilling BK, Marra KG, Christ GJ. Adipose Stem Cells Enhance Nerve Regeneration and Muscle Function in a Peroneal Nerve Ablation Model. Tissue Eng Part A 2019; 27:297-310. [PMID: 30760135 DOI: 10.1089/ten.tea.2018.0244] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Severe peripheral nerve injuries have devastating consequences on the quality of life in affected patients, and they represent a significant unmet medical need. Destruction of nerve fibers results in denervation of targeted muscles, which, subsequently, undergo progressive atrophy and loss of function. Timely restoration of neural innervation to muscle fibers is crucial to the preservation of muscle homeostasis and function. The goal of this study was to evaluate the impact of addition of adipose stem cells (ASCs) to polycaprolactone (PCL) nerve conduit guides on peripheral nerve repair and functional muscle recovery in the setting of a critical size nerve defect. To this end, peripheral nerve injury was created by surgically ablating 6 mm of the common peroneal nerve in a rat model. A PCL nerve guide, filled with ASCs and/or poloxamer hydrogel, was sutured to the nerve ends. Negative and positive controls included nerve ablation only (no repair), and reversed polarity autograft nerve implant, respectively. Tibialis anterior (TA) muscle function was assessed at 4, 8, and 12 weeks postinjury, and nerve and muscle tissue was retrieved at the 12-week terminal time point. Inclusion of ASCs in the PCL nerve guide elicited statistically significant time-dependent increases in functional recovery (contraction) after denervation; ∼25% higher than observed in acellular (poloxamer-filled) implants and indistinguishable from autograft implants, respectively, at 12 weeks postinjury (p < 0.05, n = 7-8 in each group). Analysis of single muscle fiber cross-sectional area (CSA) revealed that ASC-based treatment of nerve injury provided a better recapitulation of the overall distribution of muscle fiber CSAs observed in the contralateral TA muscle of uninjured limbs. In addition, the presence of ASCs was associated with improved features of re-innervation distal to the defect, with respect to neurofilament and S100 (Schwann cell marker) expression. In conclusion, these initial studies indicate significant benefits of inclusion of ASCs to the rate and magnitude of both peripheral nerve regeneration and functional recovery of muscle contraction, to levels equivalent to autograft implantation. These findings have important implications to improved nerve repair, and they provide input for future work directed to restoration of nerve and muscle function after polytraumatic injury. Impact Statement This works explores the application of adipose stem cells (ASCs) for peripheral nerve regeneration in a rat model. Herein, we demonstrate that the addition of ASCs in poloxamer-filled PCL nerve guide conduits impacts nerve regeneration and recovery of muscle function, to levels equivalent to autograft implantation, which is considered to be the current gold standard treatment. This study builds on the importance of a timely restoration of innervation to muscle fibers for preservation of muscle homeostasis, and it will provide input for future work aiming at restoring nerve and muscle function after polytraumatic injury.
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Affiliation(s)
- Juliana A Passipieri
- Biomedical Engineering Department, University of Virginia, Charlottesville, Virginia
| | - Jack Dienes
- Biomedical Engineering Department, University of Virginia, Charlottesville, Virginia
| | - Joseph Frank
- Biomedical Engineering Department, University of Virginia, Charlottesville, Virginia
| | - Joshua Glazier
- Biomedical Engineering Department, University of Virginia, Charlottesville, Virginia
| | - Andrew Portell
- Biomedical Engineering Department, University of Virginia, Charlottesville, Virginia
| | - Kaushik P Venkatesh
- Department of Bioengineering and University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Jacqueline M Bliley
- Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Damian Grybowski
- Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Benjamin K Schilling
- Department of Bioengineering and University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Kacey G Marra
- Department of Bioengineering and University of Pittsburgh, Pittsburgh, Pennsylvania.,Department of Plastic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania.,McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - George J Christ
- Biomedical Engineering Department, University of Virginia, Charlottesville, Virginia.,Orthopaedics Department, University of Virginia, Charlottesville, Virginia
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28
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Sun AX, Prest TA, Fowler JR, Brick RM, Gloss KM, Li X, DeHart M, Shen H, Yang G, Brown BN, Alexander PG, Tuan RS. Conduits harnessing spatially controlled cell-secreted neurotrophic factors improve peripheral nerve regeneration. Biomaterials 2019; 203:86-95. [DOI: 10.1016/j.biomaterials.2019.01.038] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 12/15/2018] [Accepted: 01/24/2019] [Indexed: 02/07/2023]
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29
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Han Q, Wang Q, Wu J, Li M, Fang Y, Zhu H, Wang X. Nell-1 promotes the neural-like differentiation of dental pulp cells. Biochem Biophys Res Commun 2019; 513:515-521. [PMID: 30979495 DOI: 10.1016/j.bbrc.2019.04.028] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Accepted: 04/03/2019] [Indexed: 02/06/2023]
Abstract
Previous studies showed that Nel-like molecule-1 (Nell-1) can positively regulate odontoblastic differentiation and dentin formation. Intriguingly, our group found that Nell-1 is co-expressed with neural markers. The purpose of this study was to investigate whether Nell-1 protein plays a regulatory role in the differentiation of dental pulp cells into neural-like cells by in vivo and in vitro studies. The expression patterns of Nell-1 and dental pulp neural markers were observed by double immunofluorescence staining in normal dental pulp tissue sections of Wistar rat. Collagen sponge containing Nell-1 protein was added into the pulp cavity of rat molars in order to observe the expression patterns of neural markers in rat dental pulp repair and regeneration model by immunohistochemical staining. Moreover, human dental pulp stem cells (hDPSCs) were cultured, and different concentrations of Nell-1 protein were added for 12 h, 24 h, and 72h. The expression of neural markers was detected by using quantitative real-time polymerase chain reaction and Western blot. Nell-1 was co-expressed with neural markers including substance P (SP) and Nestin in rat dental pulp tissue. The expression of neural markers including SP, neuron-specific enolase (NSE), and Nestin was increased obviously in rat dental pulp tissues stimulated with Nell-1 protein. In cultured hDPSCs induced by Nell-1 protein, the expression of neural markers including glial fibrillary acidic protein (GFAP), Nestin, and β-III tubulin was increased. Nell-1 plays a positive role in inducing the differentiation of DPSCs into neural-like cells.
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Affiliation(s)
- Qi Han
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, School and Hospital of Stomatology, Shandong University, 44-1Wenhuaxi Road, Jinan, 250012, Shandong, China
| | - Qiang Wang
- Jinan Stomatological Hospital, Jinan, 250001, Shandong, China
| | - Jiameng Wu
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, School and Hospital of Stomatology, Shandong University, 44-1Wenhuaxi Road, Jinan, 250012, Shandong, China
| | - Mengyue Li
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, School and Hospital of Stomatology, Shandong University, 44-1Wenhuaxi Road, Jinan, 250012, Shandong, China
| | - Yixuan Fang
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, School and Hospital of Stomatology, Shandong University, 44-1Wenhuaxi Road, Jinan, 250012, Shandong, China
| | - Hongfan Zhu
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, School and Hospital of Stomatology, Shandong University, 44-1Wenhuaxi Road, Jinan, 250012, Shandong, China
| | - Xiaoying Wang
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, School and Hospital of Stomatology, Shandong University, 44-1Wenhuaxi Road, Jinan, 250012, Shandong, China.
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30
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Xiao Q, Zhang N, Ye Z, Huang N. Microtopography based on inverse opal structures regulates the behavior of bone marrow‐derived mesenchymal stem cells. POLYM ADVAN TECHNOL 2019. [DOI: 10.1002/pat.4550] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Qian‐Ru Xiao
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical EngineeringSoutheast University Nanjing China
| | - Ning Zhang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical EngineeringSoutheast University Nanjing China
| | - Zheng Ye
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical EngineeringSoutheast University Nanjing China
| | - Ning‐Ping Huang
- State Key Laboratory of Bioelectronics, School of Biological Science and Medical EngineeringSoutheast University Nanjing China
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31
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Gizaw M, Faglie A, Pieper M, Poudel S, Chou SF. The Role of Electrospun Fiber Scaffolds in Stem Cell Therapy for Skin Tissue Regeneration. MED ONE 2019; 4:e190002. [PMID: 30972372 PMCID: PMC6453140 DOI: 10.20900/mo.20190002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Stem cell therapy has emerged as one of the topics in tissue engineering where undifferentiated and multipotent cells are strategically placed/ injected in tissue structure for cell regeneration. Over the years, stem cells have shown promising results in skin repairs for non-healing and/or chronic wounds. The addition of the stem cells around the wound site promotes signaling pathways for growth factors that regulate tissue reconstruction. However, injecting stem cells around the wound site has its drawbacks, including cell death due to lack of microenvironment cues. This particular issue is resolved when biomaterial scaffolds are involved in the cultivation and mechanical support of the stem cells. In this review, we describe the current models of stem cell therapy by injections and those that are done through cell cultures using electrospun fiber scaffolds. Electrospun fibers are considered as an ideal candidate for cell cultures due to their surface properties. Through the control of fiber morphology and fiber structure, cells are able to proliferate and differentiate into keratinocytes for skin tissue regeneration. Furthermore, we provide another perspective of using electrospun fibers and stem cells in a layer-by-layer structure for skin substitutes (dressing). Finally, electrospun fibers have the potential to incorporate bioactive agents to achieve controlled release properties, which is beneficial to the survival of the delivered stem cells or the recruitment of the cells. Overall, our work illustrates that electrospun fibers are ideal for stem cell cultures while serving as cell carriers for wound dressing materials.
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Affiliation(s)
- Mulugeta Gizaw
- Department of Mechanical Engineering, College of Engineering, The University of Texas at Tyler, Tyler, TX 75799, USA
| | - Addison Faglie
- Department of Mechanical Engineering, College of Engineering, The University of Texas at Tyler, Tyler, TX 75799, USA
| | - Martha Pieper
- Department of Mechanical Engineering, College of Engineering, The University of Texas at Tyler, Tyler, TX 75799, USA
| | - Sarju Poudel
- Department of Mechanical Engineering, College of Engineering, The University of Texas at Tyler, Tyler, TX 75799, USA
| | - Shih-Feng Chou
- Department of Mechanical Engineering, College of Engineering, The University of Texas at Tyler, Tyler, TX 75799, USA
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32
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Sayad-Fathi S, Nasiri E, Zaminy A. Advances in stem cell treatment for sciatic nerve injury. Expert Opin Biol Ther 2019; 19:301-311. [PMID: 30700166 DOI: 10.1080/14712598.2019.1576630] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
INTRODUCTION The sciatic nerve is one of the peripheral nerves that is most prone to injuries. After injury, the connection between the nervous system and the distal organs is disrupted, and delayed treatment results in distal organ atrophy and total disability. Regardless of great advances in the fields of neurosurgery, biological sciences, and regenerative medicine, total functional recovery is yet to be achieved. AREAS COVERED Cell-based therapy for the treatment of peripheral nerve injuries (PNIs) has brought a new perspective to the field of regenerative medicine. Having the ability to differentiate into neural and glial cells, stem cells enhance neural regeneration after PNIs. Augmenting axonal regeneration, remyelination, and muscle mass preservation are the main mechanisms underlying stem cells' beneficial effects on neural regeneration. EXPERT OPINION Despite the usefulness of employing stem cells for the treatment of PNIs in pre-clinical settings, further assessments are still needed in order to translate this approach into clinical settings. Mesenchymal stem cells, especially adipose-derived stem cells, with the ability of autologous transplantation, as well as easy harvesting procedures, are speculated to be the most promising source to be used in the treatment of PNIs.
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Affiliation(s)
- Sara Sayad-Fathi
- a Neuroscience Research Center, Faculty of Medicine , Guilan University of Medical Sciences , Rasht , Iran
| | - Ebrahim Nasiri
- a Neuroscience Research Center, Faculty of Medicine , Guilan University of Medical Sciences , Rasht , Iran
| | - Arash Zaminy
- a Neuroscience Research Center, Faculty of Medicine , Guilan University of Medical Sciences , Rasht , Iran
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33
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Yousefi F, Lavi Arab F, Nikkhah K, Amiri H, Mahmoudi M. Novel approaches using mesenchymal stem cells for curing peripheral nerve injuries. Life Sci 2019; 221:99-108. [PMID: 30735735 DOI: 10.1016/j.lfs.2019.01.052] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 01/15/2019] [Accepted: 01/29/2019] [Indexed: 12/23/2022]
Abstract
Peripheral nerve injury (PNI) is a common life-changing disability of peripheral nervous system with significant socioeconomic consequences. Conventional therapeutic approaches for PNI have several drawbacks such as need to autologous nerve scarifying, surplus surgery, and difficult accessibility to donor nerve; therefore, other therapeutic strategies such as mesenchymal stem cells (MSCs) therapy are getting more interesting. MSCs have been proved to be safe and efficient in numerous degenerative diseases of central and peripheral nervous systems. In this paper, we review novel biotechnological advancements in treating PNI using MSCs.
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Affiliation(s)
- Forouzan Yousefi
- Immunology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Fahimeh Lavi Arab
- Immunology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Karim Nikkhah
- Department of Neurology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Houshang Amiri
- Neurology Research Center, Kerman University of Medical Sciences, Kerman, Iran; Department of Radiology and Nuclear Medicine, VU University Medical Center, Amsterdam, the Netherlands
| | - Mahmoud Mahmoudi
- Immunology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Immunology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
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34
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Memic A, Abudula T, Mohammed HS, Joshi Navare K, Colombani T, Bencherif SA. Latest Progress in Electrospun Nanofibers for Wound Healing Applications. ACS APPLIED BIO MATERIALS 2019; 2:952-969. [DOI: 10.1021/acsabm.8b00637] [Citation(s) in RCA: 166] [Impact Index Per Article: 33.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Adnan Memic
- Center of Nanotechnology, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Tuerdimaimaiti Abudula
- Center of Nanotechnology, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Department of Chemical and Materials Engineering, Faculty of Engineering, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Halimatu S. Mohammed
- Department of Chemical Engineering, Northeastern University, Boston, Massachusetts 02115, United States
| | - Kasturi Joshi Navare
- Department of Chemical Engineering, Northeastern University, Boston, Massachusetts 02115, United States
| | - Thibault Colombani
- Department of Chemical Engineering, Northeastern University, Boston, Massachusetts 02115, United States
| | - Sidi A. Bencherif
- Department of Chemical Engineering, Northeastern University, Boston, Massachusetts 02115, United States
- Department of Bioengineering, Northeastern University, Boston, Massachusetts 02120, United States
- Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, United States
- Sorbonne University, UTC CNTS UMR 7338, Biomechanics and Bioengineering, University of Technology of Compiegne, 60203 Compiegne, Cedex, France
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Wang L, Song D, Zhang X, Ding Z, Kong X, Lu Q, Kaplan DL. Silk-Graphene Hybrid Hydrogels with Multiple Cues to Induce Nerve Cell Behavior. ACS Biomater Sci Eng 2018; 5:613-622. [PMID: 33405825 DOI: 10.1021/acsbiomaterials.8b01481] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Cell behavior is dependent in part on chemical and physical cues from the extracellular matrix. Although the influence of various cues on cell behavior has been studied, challenges remain to incorporate multiple cues to matrix systems to optimize and control cell outcomes. Here, aligned silk fibroin (SF)-graphene hydrogels with preferable stiffness were developed through arranging SF nanofibers and SF-modified graphene sheets under an electric field. Different signals, such as bioactive graphene, nanofibrous structure, aligned topography, and mechanical stiffness, were tailored into the hydrogel system, providing niches for nerve cell responses. The desired adhesion, proliferation, differentiation, extensio,n and growth factor secretion of multiple nerve-related cells was achieved on these hydrogels, suggesting strong synergistic action through the combination of different cues. Based on the fabrication strategy, our present study provides a useful materials engineering platform for revealing cooperative influences of different signals on nerve cell behavior, to help in the understanding of cell-biomaterial interactions, with potential toward studies related to nerve regeneration.
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Affiliation(s)
- Lili Wang
- National Engineering Laboratory for Modern Silk & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, Jiangsu 215123, People's Republic of China
| | - Dawei Song
- Tai'an City Central Hospital, Taian, 271000, People's Republic of China
| | - Xiaoyi Zhang
- National Engineering Laboratory for Modern Silk & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, Jiangsu 215123, People's Republic of China
| | - Zhaozhao Ding
- National Engineering Laboratory for Modern Silk & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, Jiangsu 215123, People's Republic of China
| | - Xiangdong Kong
- College of Materials and Textiles, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China
| | - Qiang Lu
- National Engineering Laboratory for Modern Silk & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, Jiangsu 215123, People's Republic of China
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts 02155, United States
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El-Habta R, Sloniecka M, Kingham PJ, Backman LJ. The adipose tissue stromal vascular fraction secretome enhances the proliferation but inhibits the differentiation of myoblasts. Stem Cell Res Ther 2018; 9:352. [PMID: 30572954 PMCID: PMC6302486 DOI: 10.1186/s13287-018-1096-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 11/14/2018] [Accepted: 12/02/2018] [Indexed: 12/12/2022] Open
Abstract
Background Adipose tissue is an excellent source for isolation of stem cells for treating various clinical conditions including injuries to the neuromuscular system. Many previous studies have focused on differentiating these adipose stem cells (ASCs) towards a Schwann cell-like phenotype (dASCs), which can enhance axon regeneration and reduce muscle atrophy. However, the stromal vascular fraction (SVF), from which the ASCs are derived, also exerts broad regenerative potential and might provide a faster route to clinical translation of the cell therapies for treatment of neuromuscular disorders. Methods The aim of this study was to establish the effects of SVF cells on the proliferation and differentiation of myoblasts using indirect co-culture experiments. A Growth Factor PCR Array was used to compare the secretomes of SVF and dASCs, and the downstream signaling pathways were investigated. Results SVF cells, unlike culture-expanded dASCs, expressed and secreted hepatocyte growth factor (HGF) at concentrations sufficient to enhance the proliferation of myoblasts. Pharmacological inhibitor studies revealed that the signal is mediated via ERK1/2 phosphorylation and that the effect is significantly reduced by the addition of 100 pM Norleual, a specific HGF inhibitor. When myoblasts were differentiated into multinucleated myotubes, the SVF cells reduced the expression levels of fast-type myosin heavy chain (MyHC2) suggesting an inhibition of the differentiation process. Conclusions In summary, this study shows the importance of HGF as a mediator of the SVF effects on myoblasts and provides further evidence for the importance of the secretome in cell therapy and regenerative medicine applications. Electronic supplementary material The online version of this article (10.1186/s13287-018-1096-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- R El-Habta
- Department of Integrative Medical Biology, Section for Anatomy, Umeå University, SE-901 87, Umeå, Sweden.
| | - M Sloniecka
- Department of Integrative Medical Biology, Section for Anatomy, Umeå University, SE-901 87, Umeå, Sweden
| | - P J Kingham
- Department of Integrative Medical Biology, Section for Anatomy, Umeå University, SE-901 87, Umeå, Sweden
| | - L J Backman
- Department of Integrative Medical Biology, Section for Anatomy, Umeå University, SE-901 87, Umeå, Sweden
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Yousefi F, Lavi Arab F, Saeidi K, Amiri H, Mahmoudi M. Various strategies to improve efficacy of stem cell transplantation in multiple sclerosis: Focus on mesenchymal stem cells and neuroprotection. J Neuroimmunol 2018; 328:20-34. [PMID: 30557687 DOI: 10.1016/j.jneuroim.2018.11.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Accepted: 11/30/2018] [Indexed: 02/09/2023]
Abstract
Multiple sclerosis (MS) is an inflammatory demyelinating disease of the central nervous system (CNS) which predominantly affect young adults and undergo heavy socioeconomic burdens. Conventional therapeutic modalities for MS mostly downregulate aggressive immune responses and are almost insufficient for management of progressive course of the disease. Mesenchymal stem cells (MSCs), due to both immunomodulatory and neuroprotective properties have been known as practical cells for treatment of neurodegenerative diseases like MS. However, clinical translation of MSCs is associated with some limitations such as short-life engraftment duration, little in vivo trans-differentiation and restricted accessibility into damaged sites. Therefore, laboratory manipulation of MSCs can improve efficacy of MSCs transplantation in MS patients. In this review, we discuss several novel approaches, which can potentially enhance MSCs capabilities for treating MS.
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Affiliation(s)
- Forouzan Yousefi
- Immunology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Fahimeh Lavi Arab
- Immunology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Kolsoum Saeidi
- Physiology Research Center, Institute of Basic and Clinical Physiology Sciences, Kerman University of Medical Sciences, Kerman, Iran
| | - Houshang Amiri
- Neurology Research Center, Kerman University of Medical Sciences, Kerman, Iran; Department of Radiology and Nuclear Medicine, VU University Medical Center, Amsterdam, The Netherlands
| | - Mahmoud Mahmoudi
- Immunology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Immunology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
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Kamei W, Matsumine H, Osaki H, Ueta Y, Tsunoda S, Shimizu M, Hashimoto K, Niimi Y, Miyata M, Sakurai H. Axonal supercharged interpositional jump-graft with a hybrid artificial nerve conduit containing adipose-derived stem cells in facial nerve paresis rat model. Microsurgery 2018; 38:889-898. [PMID: 30380159 DOI: 10.1002/micr.30389] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2018] [Revised: 09/10/2018] [Accepted: 09/21/2018] [Indexed: 12/15/2022]
Abstract
PURPOSE Interpositional jump-graft (IPJG) technique with the hypoglossal nerve for supercharging can be applied in a facial nerve paresis case. In IPJG, an autologous nerve is required, and the donor site morbidity is unavoidable. Biodegradable nerve conduits are made from polyglycolic acid (PGA) and used recently without donor site complications after providing autologous grafts. Hybrid artificial nerve conduits with adipose-derived stem cells (ASCs) also attract attention as a nerve-regeneration enhancing agent. This study examined the effect of hybrid artificial nerve conduit on IPJG. MATERIALS AND METHODS A total of 34 Lewis rats were used and divided into 4 groups by the bridge materials: autograft (n = 8), PGA nerve conduit (n = 8), hybrid PGA nerve conduit with ASCs (n = 8), and the nontreated control groups (n = 8). ASCs were collected from 2 rats and cultured. The animals were assessed physiologically and histopathologically at 13 weeks after surgery. RESULTS In compound muscle action potential, the amplitude of hybrid PGA group (3,222 ± 1,779 μV) was significantly higher than that of PGA group (1,961 ± 445 μV, P < .05), and no significant difference between hybrid PGA and autograft group. All treated groups showed a myelinated nerve regeneration with double innervation in hypoglossal and facial nerve nuclei for vibrissal muscle. CONCLUSION This study showed the effectiveness of IPJG with a hybrid PGA conduit especially in physiological examination.
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Affiliation(s)
- Wataru Kamei
- Department of Plastic and Reconstructive Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Hajime Matsumine
- Department of Plastic and Reconstructive Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Hironobu Osaki
- Department of Physiology, Division of Neurophysiology, Tokyo Women's Medical University, Tokyo, Japan
| | - Yoshifumi Ueta
- Department of Physiology, Division of Neurophysiology, Tokyo Women's Medical University, Tokyo, Japan
| | - Satoshi Tsunoda
- Department of Plastic and Reconstructive Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Mari Shimizu
- Department of Plastic and Reconstructive Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Kazuki Hashimoto
- Department of Plastic and Reconstructive Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Yosuke Niimi
- Department of Plastic and Reconstructive Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Mariko Miyata
- Department of Physiology, Division of Neurophysiology, Tokyo Women's Medical University, Tokyo, Japan
| | - Hiroyuki Sakurai
- Department of Plastic and Reconstructive Surgery, Tokyo Women's Medical University, Tokyo, Japan
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Doornaert M, Colle J, De Maere E, Declercq H, Blondeel P. Autologous fat grafting: Latest insights. Ann Med Surg (Lond) 2018; 37:47-53. [PMID: 30622707 PMCID: PMC6318549 DOI: 10.1016/j.amsu.2018.10.016] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 10/06/2018] [Accepted: 10/11/2018] [Indexed: 12/13/2022] Open
Abstract
A recent rise in the use of autologous fat transfer for soft tissue augmentation has paralleled the increasing popularity of liposuction body contouring. This creates a readily available and inexpensive product for lipografting, which is the application of lipoaspirated material. Consistent scientific proof about the long-term viability of the transferred fat is not available. Clinically, there is a reabsorption rate which has been reported to range from 20 to 90%. Results can be unpredictable with overcorrection and regular need for additional interventions. In this review, adipogenesis physiology and the adipogenic cascade from adipose-derived stem cells to adult adipocytes is extensively described to determine various procedures involved in the fat grafting technique. Variables in structure and physiology, adipose tissue harvesting- and processing techniques, and the preservation of fat grafts are taken into account to collect reproducible scientific data to establish standard in vitro and in vivo models for experimental fat grafting. Adequate histological staining for fat tissue, immunohistochemistry and viability assays should be universally used in experiments to be able to produce comparative results. By analysis of the applied methods and comparison to similar experiments, a conclusion concerning the ideal technique to improve clinical outcome is proposed. Adipogenic physiology is described to determine various procedures involved in the fat grafting technique. Clinical studies on fat grafting have confirmed an unpredictable result. After analysis of the literature and despite attempts to eliminate confounding factors, on every step of the fat transfer technique a number of studies with conflicting results exist. Adequate histological staining for fat tissue, immunohistochemistry and viability assays should be universally used in experiments to be able to produce comparative results.
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Wang ZZ, Sakiyama-Elbert SE. Matrices, scaffolds & carriers for cell delivery in nerve regeneration. Exp Neurol 2018; 319:112837. [PMID: 30291854 DOI: 10.1016/j.expneurol.2018.09.020] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 09/13/2018] [Accepted: 09/28/2018] [Indexed: 12/22/2022]
Abstract
Nerve injuries can be life-long debilitating traumas that severely impact patients' quality of life. While many acellular neural scaffolds have been developed to aid the process of nerve regeneration, complete functional recovery is still very difficult to achieve, especially for long-gap peripheral nerve injury and most cases of spinal cord injury. Cell-based therapies have shown many promising results for improving nerve regeneration. With recent advances in neural tissue engineering, the integration of biomaterial scaffolds and cell transplantation are emerging as a more promising approach to enhance nerve regeneration. This review provides an overview of important considerations for designing cell-carrier biomaterial scaffolds. It also discusses current biomaterials used for scaffolds that provide permissive and instructive microenvironments for improved cell transplantation.
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Affiliation(s)
- Ze Zhong Wang
- Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, Missouri, USA; Department of Biomedical Engineering, University of Austin at Texas, Austin, TX, USA
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Uz M, Das SR, Ding S, Sakaguchi DS, Claussen JC, Mallapragada SK. Advances in Controlling Differentiation of Adult Stem Cells for Peripheral Nerve Regeneration. Adv Healthc Mater 2018; 7:e1701046. [PMID: 29656561 DOI: 10.1002/adhm.201701046] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2017] [Revised: 01/08/2018] [Indexed: 01/01/2023]
Abstract
Adult stems cells, possessing the ability to grow, migrate, proliferate, and transdifferentiate into various specific phenotypes, constitute a great asset for peripheral nerve regeneration. Adult stem cells' ability to undergo transdifferentiation is sensitive to various cell-to-cell interactions and external stimuli involving interactions with physical, mechanical, and chemical cues within their microenvironment. Various studies have employed different techniques for transdifferentiating adult stem cells from distinct sources into specific lineages (e.g., glial cells and neurons). These techniques include chemical and/or electrical induction as well as cell-to-cell interactions via co-culture along with the use of various 3D conduit/scaffold designs. Such scaffolds consist of unique materials that possess controllable physical/mechanical properties mimicking cells' natural extracellular matrix. However, current limitations regarding non-scalable transdifferentiation protocols, fate commitment of transdifferentiated stem cells, and conduit/scaffold design have required new strategies for effective stem cells transdifferentiation and implantation. In this progress report, a comprehensive review of recent advances in the transdifferentiation of adult stem cells via different approaches along with multifunctional conduit/scaffolds designs is presented for peripheral nerve regeneration. Potential cellular mechanisms and signaling pathways associated with differentiation are also included. The discussion with current challenges in the field and an outlook toward future research directions is concluded.
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Affiliation(s)
- Metin Uz
- Department of Chemical and Biological Engineering Iowa State University Ames IA 50011 USA
| | - Suprem R. Das
- Department of Mechanical Engineering Iowa State University Ames IA 50011 USA
- Division of Materials Science and Engineering Ames Laboratory Ames IA 50011 USA
| | - Shaowei Ding
- Department of Mechanical Engineering Iowa State University Ames IA 50011 USA
| | - Donald S. Sakaguchi
- Neuroscience Program Iowa State University Ames IA 50011 USA
- Department of Genetics Development and Cell Biology Iowa State University Ames IA 50011 USA
| | - Jonathan C. Claussen
- Department of Mechanical Engineering Iowa State University Ames IA 50011 USA
- Division of Materials Science and Engineering Ames Laboratory Ames IA 50011 USA
| | - Surya K. Mallapragada
- Department of Chemical and Biological Engineering Iowa State University Ames IA 50011 USA
- Department of Genetics Development and Cell Biology Iowa State University Ames IA 50011 USA
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Lu C, Wang Y, Yang S, Wang C, Sun X, Lu J, Yin H, Jiang W, Meng H, Rao F, Wang X, Peng J. Bioactive Self-Assembling Peptide Hydrogels Functionalized with Brain-Derived Neurotrophic Factor and Nerve Growth Factor Mimicking Peptides Synergistically Promote Peripheral Nerve Regeneration. ACS Biomater Sci Eng 2018; 4:2994-3005. [DOI: 10.1021/acsbiomaterials.8b00536] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Changfeng Lu
- Institute of Orthopedics, Chinese PLA General Hospital, Fuxing Road no. 28, Beijing 100853, PR China
- Beijing Key Lab of Regenerative Medicine in Orthopedics, Fuxing Road no. 28, Beijing 100853, PR China
- Key Lab of Musculoskeletal Trauma & War Injuries, PLA, Fuxing Road no. 28, Beijing 100853, PR China
- Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province 226007, PR China
| | - Yu Wang
- Institute of Orthopedics, Chinese PLA General Hospital, Fuxing Road no. 28, Beijing 100853, PR China
- Beijing Key Lab of Regenerative Medicine in Orthopedics, Fuxing Road no. 28, Beijing 100853, PR China
- Key Lab of Musculoskeletal Trauma & War Injuries, PLA, Fuxing Road no. 28, Beijing 100853, PR China
- Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province 226007, PR China
| | - Shuhui Yang
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Chong Wang
- Institute of Orthopedics, Chinese PLA General Hospital, Fuxing Road no. 28, Beijing 100853, PR China
- Beijing Key Lab of Regenerative Medicine in Orthopedics, Fuxing Road no. 28, Beijing 100853, PR China
- Key Lab of Musculoskeletal Trauma & War Injuries, PLA, Fuxing Road no. 28, Beijing 100853, PR China
- Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province 226007, PR China
| | - Xun Sun
- Institute of Orthopedics, Chinese PLA General Hospital, Fuxing Road no. 28, Beijing 100853, PR China
- Beijing Key Lab of Regenerative Medicine in Orthopedics, Fuxing Road no. 28, Beijing 100853, PR China
- Key Lab of Musculoskeletal Trauma & War Injuries, PLA, Fuxing Road no. 28, Beijing 100853, PR China
- School of Medicine, Nankai University, Weijin Road no. 94, Tianjin 300071, PR China
| | - Jiaju Lu
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Heyong Yin
- Experimental Surgery and Regenerative Medicine, Department of Surgery, Ludwig-Maximilians-University, Nussbaumstrasse 20, Munich 80336, Germany
| | - Wenli Jiang
- Institute of Orthopedics, Chinese PLA General Hospital, Fuxing Road no. 28, Beijing 100853, PR China
- Beijing Key Lab of Regenerative Medicine in Orthopedics, Fuxing Road no. 28, Beijing 100853, PR China
- Key Lab of Musculoskeletal Trauma & War Injuries, PLA, Fuxing Road no. 28, Beijing 100853, PR China
| | - Haoye Meng
- Institute of Orthopedics, Chinese PLA General Hospital, Fuxing Road no. 28, Beijing 100853, PR China
- Beijing Key Lab of Regenerative Medicine in Orthopedics, Fuxing Road no. 28, Beijing 100853, PR China
- Key Lab of Musculoskeletal Trauma & War Injuries, PLA, Fuxing Road no. 28, Beijing 100853, PR China
- Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province 226007, PR China
| | - Feng Rao
- Institute of Orthopedics, Chinese PLA General Hospital, Fuxing Road no. 28, Beijing 100853, PR China
- Beijing Key Lab of Regenerative Medicine in Orthopedics, Fuxing Road no. 28, Beijing 100853, PR China
- Key Lab of Musculoskeletal Trauma & War Injuries, PLA, Fuxing Road no. 28, Beijing 100853, PR China
| | - Xiumei Wang
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Jiang Peng
- Institute of Orthopedics, Chinese PLA General Hospital, Fuxing Road no. 28, Beijing 100853, PR China
- Co-innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu Province 226007, PR China
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Khan FA, Almohazey D, Alomari M, Almofty SA. Impact of nanoparticles on neuron biology: current research trends. Int J Nanomedicine 2018; 13:2767-2776. [PMID: 29780247 PMCID: PMC5951135 DOI: 10.2147/ijn.s165675] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Nanoparticles have enormous applications in textiles, cosmetics, electronics, and pharmaceuticals. But due to their exceptional physical and chemical properties, particularly antimicrobial, anticancer, antibacterial, anti-inflammatory properties, nanoparticles have many potential applications in diagnosis as well as in the treatment of various diseases. Over the past few years, nanoparticles have been extensively used to investigate their response on the neuronal cells. These nanoparticles cause stem cells to differentiate into neuronal cells and promote neuronal cell survivability and neuronal cell growth and expansion. The nanoparticles have been tested both in in vitro and in vivo models. The nanoparticles with various shapes, sizes, and chemical compositions mostly produced stimulatory effects on neuronal cells, but there are few that can cause inhibitory effects on the neuronal cells. In this review, we discuss stimulatory and inhibitory effects of various nanoparticles on the neuronal cells. The aim of this review was to summarize different effects of nanoparticles on the neuronal cells and try to understand the differential response of various nanoparticles. This review provides a bird's eye view approach on the effects of various nanoparticles on neuronal differentiation, neuronal survivability, neuronal growth, neuronal cell adhesion, and functional and behavioral recovery. Finally, this review helps the researchers to understand the different roles of nanoparticles (stimulatory and inhibitory) in neuronal cells to develop effective therapeutic and diagnostic strategies for neurodegenerative diseases.
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Affiliation(s)
- Firdos Alam Khan
- Department of Stem Cell Biology, Institute for Research and Medical Consultations, Imam Abdulrahman Bin Faisal University, Dammam, Kingdom of Saudi Arabia
| | - Dana Almohazey
- Department of Stem Cell Biology, Institute for Research and Medical Consultations, Imam Abdulrahman Bin Faisal University, Dammam, Kingdom of Saudi Arabia
| | - Munthar Alomari
- Department of Stem Cell Biology, Institute for Research and Medical Consultations, Imam Abdulrahman Bin Faisal University, Dammam, Kingdom of Saudi Arabia
| | - Sarah Ameen Almofty
- Department of Stem Cell Biology, Institute for Research and Medical Consultations, Imam Abdulrahman Bin Faisal University, Dammam, Kingdom of Saudi Arabia
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Aijie C, Xuan L, Huimin L, Yanli Z, Yiyuan K, Yuqing L, Longquan S. Nanoscaffolds in promoting regeneration of the peripheral nervous system. Nanomedicine (Lond) 2018; 13:1067-1085. [PMID: 29790811 DOI: 10.2217/nnm-2017-0389] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The ability to surgically repair peripheral nerve injuries is urgently needed. However, traditional tissue engineering techniques, such as autologous nerve transplantation, have some limitations. Therefore, tissue engineered autologous nerve grafts have become a suitable choice for nerve repair. Novel tissue engineering techniques derived from nanostructured conduits have been shown to be superior to other successful functional neurological structures with different scaffolds in terms of providing the required structures and properties. Additionally, different biomaterials and growth factors have been added to nerve scaffolds to produce unique biological effects that promote nerve regeneration and functional recovery. This review summarizes the application of different nanoscaffolds in peripheral nerve repair and further analyzes how the nanoscaffolds promote peripheral nerve regeneration.
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Affiliation(s)
- Chen Aijie
- Nanfang Hospital, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou, Guangdong 510515, China
- Guangdong Provincial Key Laboratory of Construction & Detection in Tissue Engineering, Guangzhou 510515, China
| | - Lai Xuan
- Nanfang Hospital, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou, Guangdong 510515, China
| | - Liang Huimin
- Nanfang Hospital, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou, Guangdong 510515, China
| | - Zhang Yanli
- Nanfang Hospital, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou, Guangdong 510515, China
| | - Kang Yiyuan
- Nanfang Hospital, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou, Guangdong 510515, China
| | - Lin Yuqing
- Nanfang Hospital, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou, Guangdong 510515, China
| | - Shao Longquan
- Nanfang Hospital, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou, Guangdong 510515, China
- Guangdong Provincial Key Laboratory of Construction & Detection in Tissue Engineering, Guangzhou 510515, China
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Gizaw M, Thompson J, Faglie A, Lee SY, Neuenschwander P, Chou SF. Electrospun Fibers as a Dressing Material for Drug and Biological Agent Delivery in Wound Healing Applications. Bioengineering (Basel) 2018; 5:E9. [PMID: 29382065 PMCID: PMC5874875 DOI: 10.3390/bioengineering5010009] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 01/17/2018] [Accepted: 01/22/2018] [Indexed: 12/16/2022] Open
Abstract
Wound healing is a complex tissue regeneration process that promotes the growth of new tissue to provide the body with the necessary barrier from the outside environment. In the class of non-healing wounds, diabetic wounds, and ulcers, dressing materials that are available clinically (e.g., gels and creams) have demonstrated only a slow improvement with current available technologies. Among all available current technologies, electrospun fibers exhibit several characteristics that may provide novel replacement dressing materials for the above-mentioned wounds. Therefore, in this review, we focus on recent achievements in electrospun drug-eluting fibers for wound healing applications. In particular, we review drug release, including small molecule drugs, proteins and peptides, and gene vectors from electrospun fibers with respect to wound healing. Furthermore, we provide an overview on multifunctional dressing materials based on electrospun fibers, including those that are capable of achieving wound debridement and wound healing simultaneously as well as multi-drugs loading/types suitable for various stages of the healing process. Our review provides important and sufficient information to inform the field in development of fiber-based dressing materials for clinical treatment of non-healing wounds.
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Affiliation(s)
- Mulugeta Gizaw
- Department of Mechanical Engineering, College of Engineering, The University of Texas at Tyler, Tyler, TX 75799, USA.
| | - Jeffrey Thompson
- Department of Mechanical Engineering, College of Engineering, The University of Texas at Tyler, Tyler, TX 75799, USA.
| | - Addison Faglie
- Department of Mechanical Engineering, College of Engineering, The University of Texas at Tyler, Tyler, TX 75799, USA.
| | - Shih-Yu Lee
- School of Nursing, College of Nursing and Health Sciences, The University of Texas at Tyler, Tyler, TX 75799, USA.
| | - Pierre Neuenschwander
- Department of Cellular and Molecular Biology, The University of Texas Health Science Center at Tyler, Tyler, TX 75708, USA.
| | - Shih-Feng Chou
- Department of Mechanical Engineering, College of Engineering, The University of Texas at Tyler, Tyler, TX 75799, USA.
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