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Wang X, Wang L, Cheng B, Wan Q, Wang J, Chen J, Zhu Z, Pei X. Mechanochemically Reprogrammed Tantalum Interfaces Enhance Osseointegration Via Immunomodulation. ACS APPLIED MATERIALS & INTERFACES 2024; 16:44451-44466. [PMID: 39141574 DOI: 10.1021/acsami.4c08533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/16/2024]
Abstract
Bone and tooth defects can considerably affect the quality of life and health of patients, and orthopedic implants remain the primary method of addressing such defects. However, implant materials cannot coordinate with the immune microenvironment because of their biological inertness, which may lead to implant loosening or failure. Motivated by the microstructure of nacre, we engineered a biomimetic micro/nanoscale topography on a tantalum surface using a straightforward method. This comprised an organized array of tantalum nanotubes arranged in a brick wall structure, with epigallocatechin gallate acting as "mortar." The coating improved the corrosion resistance, biocompatibility, and antioxidant properties. In vitro and in vivo evaluations further confirmed that coatings can create a favorable bone immune microenvironment through the synergistic effects of mechanochemistry and enhance bone integration. This research offers a new viewpoint on the creation of sophisticated functional implants, possessing vast potential for use in the regeneration and repair of bone tissue.
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Affiliation(s)
- Xu Wang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Liang Wang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Bin Cheng
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Qianbing Wan
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Jian Wang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Junyu Chen
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Zhou Zhu
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Xibo Pei
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
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Vieira T, Silva JC, Kubinova S, Borges JP, Henriques C. Evaluation of Gelatin-Based Poly(Ester Urethane Urea) Electrospun Fibers Using Human Mesenchymal and Neural Stem Cells. Macromol Biosci 2024:e2400014. [PMID: 39072995 DOI: 10.1002/mabi.202400014] [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: 01/12/2024] [Revised: 05/10/2024] [Indexed: 07/30/2024]
Abstract
Previously, a new biodegradable poly(ester urethane urea) was synthesized based on polycaprolactone-diol and fish gelatin (PU-Gel). In this work, the potential of this new material for neural tissue engineering is evaluated. Membranes with randomly oriented fibers and with aligned fibers are produced using electrospinning and characterized regarding their mechanical behavior under both dry and wet conditions. Wet samples exhibit a lower Young's modulus than dry ones and aligned membranes are stiffer and more brittle than those randomly oriented. Cyclic tensile tests are conducted and high values for recovery ratio and resilience are obtained. Both membranes exhibited a hydrophobic surface, measured by the water contact angle (WCA). Human mesenchymal stem cells from umbilical cord tissue (UC-MSCs) and human neural stem cells (NSCs) are seeded on both types of membranes, which support their adhesion and proliferation. Cells stained for the cytoskeleton and nucleus in membranes with aligned fibers display an elongated morphology following the alignment direction. As the culture time increased, higher cell viability is obtained on randomfibers for UC-MSCs while no differences are observed for NSCs. The membranes support neuronal differentiation of NSCs, as evidenced by markers for a neuronal filament protein (NF70) and for a microtubule-associated protein (MAP2).
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Affiliation(s)
- Tânia Vieira
- CENIMAT/i3N, NOVA School of Sciences and Technology, Universidade Nova de Lisboa, Caparica, 2829-516, Portugal
- Departamento de Física, NOVA School of Sciences and Technology, Universidade Nova de Lisboa, Caparica, 2829-516, Portugal
| | - Jorge Carvalho Silva
- CENIMAT/i3N, NOVA School of Sciences and Technology, Universidade Nova de Lisboa, Caparica, 2829-516, Portugal
- Departamento de Física, NOVA School of Sciences and Technology, Universidade Nova de Lisboa, Caparica, 2829-516, Portugal
| | - Sarka Kubinova
- Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, Prague 4, Czech Republic
| | - João P Borges
- CENIMAT/i3N, NOVA School of Sciences and Technology, Universidade Nova de Lisboa, Caparica, 2829-516, Portugal
- Departamento de Ciência dos Materiais, NOVA School of Sciences and Technology, Universidade Nova de Lisboa, Caparica, 2829-516, Portugal
| | - Célia Henriques
- CENIMAT/i3N, NOVA School of Sciences and Technology, Universidade Nova de Lisboa, Caparica, 2829-516, Portugal
- Departamento de Física, NOVA School of Sciences and Technology, Universidade Nova de Lisboa, Caparica, 2829-516, Portugal
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Wu Y, Sun J, Lin Q, Wang D, Hai J. Sustained release of vascular endothelial growth factor A and basic fibroblast growth factor from nanofiber membranes reduces oxygen/glucose deprivation-induced injury to neurovascular units. Neural Regen Res 2024; 19:887-894. [PMID: 37843225 PMCID: PMC10664103 DOI: 10.4103/1673-5374.382252] [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: 11/16/2022] [Revised: 04/12/2023] [Accepted: 06/16/2023] [Indexed: 10/17/2023] Open
Abstract
Upregulation of vascular endothelial growth factor A/basic fibroblast growth factor (VEGFA/bFGF) expression in the penumbra of cerebral ischemia can increase vascular volume, reduce lesion volume, and enhance neural cell proliferation and differentiation, thereby exerting neuroprotective effects. However, the beneficial effects of endogenous VEGFA/bFGF are limited as their expression is only transiently increased. In this study, we generated multilayered nanofiber membranes loaded with VEGFA/bFGF using layer-by-layer self-assembly and electrospinning techniques. We found that a membrane containing 10 layers had an ideal ultrastructure and could efficiently and stably release growth factors for more than 1 month. This 10-layered nanofiber membrane promoted brain microvascular endothelial cell tube formation and proliferation, inhibited neuronal apoptosis, upregulated the expression of tight junction proteins, and improved the viability of various cellular components of neurovascular units under conditions of oxygen/glucose deprivation. Furthermore, this nanofiber membrane decreased the expression of Janus kinase-2/signal transducer and activator of transcription-3 (JAK2/STAT3), Bax/Bcl-2, and cleaved caspase-3. Therefore, this nanofiber membrane exhibits a neuroprotective effect on oxygen/glucose-deprived neurovascular units by inhibiting the JAK2/STAT3 pathway.
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Affiliation(s)
- Yifang Wu
- Department of Neurosurgery, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Jun Sun
- Department of Neurosurgery, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Qi Lin
- Department of Pharmacy, Institute of Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Dapeng Wang
- Department of Neurosurgery, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Jian Hai
- Department of Neurosurgery, Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
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Velikic G, Maric DM, Maric DL, Supic G, Puletic M, Dulic O, Vojvodic D. Harnessing the Stem Cell Niche in Regenerative Medicine: Innovative Avenue to Combat Neurodegenerative Diseases. Int J Mol Sci 2024; 25:993. [PMID: 38256066 PMCID: PMC10816024 DOI: 10.3390/ijms25020993] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 11/30/2023] [Accepted: 12/06/2023] [Indexed: 01/24/2024] Open
Abstract
Regenerative medicine harnesses the body's innate capacity for self-repair to restore malfunctioning tissues and organs. Stem cell therapies represent a key regenerative strategy, but to effectively harness their potential necessitates a nuanced understanding of the stem cell niche. This specialized microenvironment regulates critical stem cell behaviors including quiescence, activation, differentiation, and homing. Emerging research reveals that dysfunction within endogenous neural stem cell niches contributes to neurodegenerative pathologies and impedes regeneration. Strategies such as modifying signaling pathways, or epigenetic interventions to restore niche homeostasis and signaling, hold promise for revitalizing neurogenesis and neural repair in diseases like Alzheimer's and Parkinson's. Comparative studies of highly regenerative species provide evolutionary clues into niche-mediated renewal mechanisms. Leveraging endogenous bioelectric cues and crosstalk between gut, brain, and vascular niches further illuminates promising therapeutic opportunities. Emerging techniques like single-cell transcriptomics, organoids, microfluidics, artificial intelligence, in silico modeling, and transdifferentiation will continue to unravel niche complexity. By providing a comprehensive synthesis integrating diverse views on niche components, developmental transitions, and dynamics, this review unveils new layers of complexity integral to niche behavior and function, which unveil novel prospects to modulate niche function and provide revolutionary treatments for neurodegenerative diseases.
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Affiliation(s)
- Gordana Velikic
- Department for Research and Development, Clinic Orto MD-Parks Dr. Dragi Hospital, 21000 Novi Sad, Serbia
- Hajim School of Engineering, University of Rochester, Rochester, NY 14627, USA
| | - Dusan M. Maric
- Department for Research and Development, Clinic Orto MD-Parks Dr. Dragi Hospital, 21000 Novi Sad, Serbia
- Faculty of Stomatology Pancevo, University Business Academy, 26000 Pancevo, Serbia;
| | - Dusica L. Maric
- Department of Anatomy, Faculty of Medicine, University of Novi Sad, 21000 Novi Sad, Serbia
| | - Gordana Supic
- Institute for Medical Research, Military Medical Academy, 11000 Belgrade, Serbia; (G.S.); (D.V.)
- Medical Faculty of Military Medical Academy, University of Defense, 11000 Belgrade, Serbia
| | - Miljan Puletic
- Faculty of Stomatology Pancevo, University Business Academy, 26000 Pancevo, Serbia;
| | - Oliver Dulic
- Department of Surgery, Faculty of Medicine, University of Novi Sad, 21000 Novi Sad, Serbia;
| | - Danilo Vojvodic
- Institute for Medical Research, Military Medical Academy, 11000 Belgrade, Serbia; (G.S.); (D.V.)
- Medical Faculty of Military Medical Academy, University of Defense, 11000 Belgrade, Serbia
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Abalymov A, Pinchasik BE, Akasov RA, Lomova M, Parakhonskiy BV. Strategies for Anisotropic Fibrillar Hydrogels: Design, Cell Alignment, and Applications in Tissue Engineering. Biomacromolecules 2023; 24:4532-4552. [PMID: 37812143 DOI: 10.1021/acs.biomac.3c00503] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/10/2023]
Abstract
Efficient cellular alignment in biomaterials presents a considerable challenge, demanding the refinement of appropriate material morphologies, while ensuring effective cell-surface interactions. To address this, biomaterials are continuously researched with diverse coatings, hydrogels, and polymeric surfaces. In this context, we investigate the influence of physicochemical parameters on the architecture of fibrillar hydrogels that significantly orient the topography of flexible hydrogel substrates, thereby fostering cellular adhesion and spatial organization. Our Review comprehensively assesses various techniques for aligning polymer fibrils within hydrogels, specifically interventions applied during and after the cross-linking process. These methodologies include mechanical strains, precise temperature modulation, controlled fluidic dynamics, and chemical modulators, as well as the use of magnetic and electric fields. We highlight the intrinsic appeal of these methodologies in fabricating cell-aligning interfaces and discuss their potential implications within the fields of biomaterials and tissue engineering, particularly concerning the pursuit of optimal cellular alignment.
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Affiliation(s)
- Anatolii Abalymov
- Science Medical Center, Saratov State University, 410012 Saratov, Russia
| | - Bat-El Pinchasik
- School of Mechanical Engineering, Faculty of Engineering, Tel-Aviv University, 69978 Tel-Aviv, Israel
| | - Roman A Akasov
- Sechenov University and Federal Scientific Research Centre "Crystallography and Photonics" of Russian Academy of Sciences, 101000 Moscow, Russia
| | - Maria Lomova
- Science Medical Center, Saratov State University, 410012 Saratov, Russia
| | - Bogdan V Parakhonskiy
- Department of Biotechnology, Faculty of Bioscience Engineering, Ghent University, 9000 Ghent, Belgium
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Liu Y, Wang Y, Wang Y, Zhou J, Ding W. The growth status and functions of olfactory ensheathing cells cultured on randomly oriented and aligned type-I-collagen-based nanofibrous scaffolds. NANOTECHNOLOGY 2023; 35:035101. [PMID: 37905427 DOI: 10.1088/1361-6528/ad02a4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 10/11/2023] [Indexed: 11/02/2023]
Abstract
Aim. The potential of olfactory ensheathing cells (OECs) as a cell therapy for spinal cord reconstruction and regeneration after injury has drawn significant attention in recent years. This study attempted to investigate the influences of nano-fibrous scaffolds on the growth status and functional properties of OECs.Methods.The ultra-morphology of the scaffolds was visualized using scanning electron microscopy (SEM). To culture OECs, donated cells were subcultured and identified with p75. Cell proliferation, apoptosis, and survival rates were measured through MTT assay, Annexin-V/PI staining, and p75 cell counting, respectively. The adhesion of cells cultured on scaffolds was observed using SEM. Additionally, the functions of OECs cultured on scaffolds were assessed by testing gene expression levels through real time polymerase chain reaction.Results.The electrospun type I collagen-based nano-fibers exhibited a smooth surface and uniform distribution. It was indicated that the proliferation and survival rates of OECs cultured on both randomly oriented and aligned type I collagen-based nano-fibrous scaffolds were higher than those observed in the collagen-coated control. Conversely, apoptosis rates were lower in cells cultured on scaffolds. Furthermore, OEC adhesion was better on the scaffolds than on the control. The expression levels of target genes were significantly elevated in cells cultured on scaffolds versus the controls.Conclusion.As a whole, the utilization of aligned collagen nanofibers has demonstrated significant advantages in promoting cell growth and improving cell function. These findings have important implications for the field of regenerative medicine and suggest that the approach may hold promise for the future therapeutic applications.
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Affiliation(s)
- Yugang Liu
- Department of Spinal Surgery, The Third Hospital of Hebei Medical University, 139 Ziqiang Road, Shijiazhuang, 050051, People's Republic of China
- Department of Orthopedic Surgery, Affiliated Hospital of Hebei University of Engineering, 81 Congtai Road, Handan, 056002, People's Republic of China
| | - Yansong Wang
- Department of Spine Surgery, Second Affiliated Hospital of Harbin Medical University, 246 Xuefu Road, Harbin, 150001, People's Republic of China
| | - Ying Wang
- Department of Orthopedic Surgery, Affiliated Hospital of Hebei University of Engineering, 81 Congtai Road, Handan, 056002, People's Republic of China
| | - Jihui Zhou
- Department of Spine Surgery, Second Affiliated Hospital of Harbin Medical University, 246 Xuefu Road, Harbin, 150001, People's Republic of China
| | - Wenyuan Ding
- Department of Spinal Surgery, The Third Hospital of Hebei Medical University, 139 Ziqiang Road, Shijiazhuang, 050051, People's Republic of China
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Suematsu Y, Nagoshi N, Shinozaki M, Kase Y, Saijo Y, Hashimoto S, Shibata T, Kajikawa K, Kamata Y, Ozaki M, Yasutake K, Shindo T, Shibata S, Matsumoto M, Nakamura M, Okano H. Hepatocyte growth factor pretreatment boosts functional recovery after spinal cord injury through human iPSC-derived neural stem/progenitor cell transplantation. Inflamm Regen 2023; 43:50. [PMID: 37845736 PMCID: PMC10577910 DOI: 10.1186/s41232-023-00298-y] [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: 08/07/2023] [Accepted: 09/18/2023] [Indexed: 10/18/2023] Open
Abstract
BACKGROUND Human induced pluripotent stem cell-derived neural stem/progenitor cell (hiPSC-NS/PC)-based cell transplantation has emerged as a groundbreaking method for replacing damaged neural cells and stimulating functional recovery, but its efficacy is strongly influenced by the state of the injured spinal microenvironment. This study evaluates the impact of a dual therapeutic intervention utilizing hepatocyte growth factor (HGF) and hiPSC-NS/PC transplantation on motor function restoration following spinal cord injury (SCI). METHODS Severe contusive SCI was induced in immunocompromised rats, followed by continuous administration of recombinant human HGF protein into the subarachnoid space immediately after SCI for two weeks. Acute-phase histological and RNA sequencing analyses were conducted. Nine days after the injury, hiPSC-NS/PCs were transplanted into the lesion epicenter of the injured spinal cord, and the functional and histological outcomes were determined. RESULTS The acute-phase HGF-treated group exhibited vascularization, diverse anti-inflammatory effects, and activation of endogenous neural stem cells after SCI, which collectively contributed to tissue preservation. Following cell transplantation into a favorable environment, the transplanted NS/PCs survived well, facilitating remyelination and neuronal regeneration in host tissues. These comprehensive effects led to substantial enhancements in motor function in the dual-therapy group compared to the single-treatment groups. CONCLUSIONS We demonstrate that the combined therapeutic approach of HGF preconditioning and hiPSC-NS/PC transplantation enhances locomotor functional recovery post-SCI, highlighting a highly promising therapeutic strategy for acute to subacute SCI.
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Affiliation(s)
- Yu Suematsu
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-Ku, Tokyo, 160-8582, Japan
- Department of Physiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-Ku, Tokyo, 160-8582, Japan
| | - Narihito Nagoshi
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-Ku, Tokyo, 160-8582, Japan.
| | - Munehisa Shinozaki
- Department of Physiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-Ku, Tokyo, 160-8582, Japan
| | - Yoshitaka Kase
- Department of Physiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-Ku, Tokyo, 160-8582, Japan
- Department of Clinical Regenerative Medicine, School of Medicine, Fujita Health University, 1-98 Dengakugakubo, Kutukake-Cho, Toyoake-Shi, Aichi, 470-1192, Japan
| | - Yusuke Saijo
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-Ku, Tokyo, 160-8582, Japan
- Department of Physiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-Ku, Tokyo, 160-8582, Japan
| | - Shogo Hashimoto
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-Ku, Tokyo, 160-8582, Japan
| | - Takahiro Shibata
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-Ku, Tokyo, 160-8582, Japan
| | - Keita Kajikawa
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-Ku, Tokyo, 160-8582, Japan
| | - Yasuhiro Kamata
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-Ku, Tokyo, 160-8582, Japan
| | - Masahiro Ozaki
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-Ku, Tokyo, 160-8582, Japan
| | - Kaori Yasutake
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-Ku, Tokyo, 160-8582, Japan
| | - Tomoko Shindo
- Electron Microscope Laboratory, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-Ku, Tokyo, 160-8582, Japan
| | - Shinsuke Shibata
- Electron Microscope Laboratory, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-Ku, Tokyo, 160-8582, Japan
- Division of Microscopic Anatomy, Graduate School of Medical and Dental Sciences, Niigata University, 1-757 Asahimachi-Dori, Chuo-Ku, Niigata, Niigata, 951-8510, Japan
| | - Morio Matsumoto
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-Ku, Tokyo, 160-8582, Japan
| | - Masaya Nakamura
- Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-Ku, Tokyo, 160-8582, Japan
| | - Hideyuki Okano
- Department of Physiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-Ku, Tokyo, 160-8582, Japan.
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Topographic Orientation of Scaffolds for Tissue Regeneration: Recent Advances in Biomaterial Design and Applications. Biomimetics (Basel) 2022; 7:biomimetics7030131. [PMID: 36134935 PMCID: PMC9496066 DOI: 10.3390/biomimetics7030131] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 08/30/2022] [Accepted: 09/08/2022] [Indexed: 11/17/2022] Open
Abstract
Tissue engineering to develop alternatives for the maintenance, restoration, or enhancement of injured tissues and organs is gaining more and more attention. In tissue engineering, the scaffold used is one of the most critical elements. Its characteristics are expected to mimic the native extracellular matrix and its unique topographical structures. Recently, the topographies of scaffolds have received increasing attention, not least because different topographies, such as aligned and random, have different repair effects on various tissues. In this review, we have focused on various technologies (electrospinning, directional freeze-drying, magnetic freeze-casting, etching, and 3-D printing) to fabricate scaffolds with different topographic orientations, as well as discussed the physicochemical (mechanical properties, porosity, hydrophilicity, and degradation) and biological properties (morphology, distribution, adhesion, proliferation, and migration) of different topographies. Subsequently, we have compiled the effect of scaffold orientation on the regeneration of vessels, skin, neural tissue, bone, articular cartilage, ligaments, tendons, cardiac tissue, corneas, skeletal muscle, and smooth muscle. The compiled information in this review will facilitate the future development of optimal topographical scaffolds for the regeneration of certain tissues. In the majority of tissues, aligned scaffolds are more suitable than random scaffolds for tissue repair and regeneration. The underlying mechanism explaining the various effects of aligned and random orientation might be the differences in “contact guidance”, which stimulate certain biological responses in cells.
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Prameswari N, Brahmanta A, Sucahyo B. SMAD 3, Integrin and VEGF Expression in a Periodontal Ligament During Orthodontic Tooth Movement Induced by Hyperbaric Oxygen Therapy and Stichopus hermanii. Clin Cosmet Investig Dent 2022; 14:141-151. [PMID: 35645581 PMCID: PMC9138760 DOI: 10.2147/ccide.s348234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 04/23/2022] [Indexed: 11/23/2022] Open
Abstract
Purpose The aim of this study is to analyze SMAD 3, integrin and VEGF expressions in the periodontal ligament during orthodontic tooth movement induced by hyperbaric oxygen therapy and Stichopus hermanii. Materials and Methods Thirty Cavia cobaya were divided into 5 groups, namely, a normal control group (KN) without installation of helical springs or administration of HBOT and Stichopus hermanii gel. The negative control K(-) had helical spring without administration of HBOT and Stichopus hermanii gel for 14 days, while P1 had helical spring for 14 days then on day 3–14, Stichopus hermanii gel was added. Also, the helical spring was installed in P2 for 14 days then on day 8–14, HBOT 2.4 ATA was added 3 × 30 minutes a day, while P3 had helical spring for 14 days then on day 3–14, the gel was applied, and on day 8–14, HBOT 2.4 ATA was administered 3 × 30 minutes a day. Furthermore, SMAD3, integrin, and VEGF expressions were examined using immunohistochemical staining. Results SMAD3, integrins, and VEGF expressions showed significant differences within the groups. The combination of HBOT and Stichopus hermanii increased the expression of SMAD3 and VEGF compared to the single administration of Stichopus hermanii. The combination treatment also decreased integrin expression compared to a single HBOT administration. Conclusion The combination of HBOT and Stichopus hermanii increases the expression of SMAD3, integrins, and VEGF compared to control but did not show significant differences compared to single HBOT treatment.
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Affiliation(s)
- Noengki Prameswari
- Orthodontic Laboratory, Hang Tuah University, Surabaya, Indonesia.,Nala Husada Dental Hospital, Hang Tuah University, Surabaya, Indonesia
| | - Arya Brahmanta
- Orthodontic Laboratory, Hang Tuah University, Surabaya, Indonesia.,Nala Husada Dental Hospital, Hang Tuah University, Surabaya, Indonesia
| | - Bambang Sucahyo
- Orthodontic Laboratory, Hang Tuah University, Surabaya, Indonesia.,Nala Husada Dental Hospital, Hang Tuah University, Surabaya, Indonesia
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Kaya S, Yilmaz DE, Akmayan I, Egri O, Arasoglu T, Derman S. Caffeic Acid Phenethyl Ester Loaded Electrospun Nanofibers for Wound Dressing Application. J Pharm Sci 2021; 111:734-742. [PMID: 34600940 DOI: 10.1016/j.xphs.2021.09.041] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 09/25/2021] [Accepted: 09/26/2021] [Indexed: 01/25/2023]
Abstract
Electrospinning is an advantageous method with a wide usage area, which enables the production of materials consisting of nano-thickness fibers. In this study, caffeic acid phenethyl ester (CAPE) molecule was loaded onto the poly(lactic-co-glycolic acid) (PLGA) nanofibers and obtained nanofibers were physicochemically and biologically investigated for the first time in the literature. The existence of CAPE molecules, loaded on PLGA membranes by dropping and spraying methods, was evaluated by a comparative investigation of Fourier-transform infrared (FTIR) spectra and X-Ray diffraction (XRD) patterns. Fiber morphology of the membranes was investigated by scanning electron microscope (SEM). CAPE release and swelling behaviors of the membranes were studied in vitro. The radical scavenging activity of CAPE-loaded wound dressing materials was determined by using an antioxidant assay. The antimicrobial properties of PLGA and CAPE-loaded PLGA membranes were evaluated against S. aureus, P. aeruginosa and C. albicans strains by the time-kill method. The biocompatibility study of the obtained CAPE-loaded fibers conducted on human fibroblast cell line and wound healing promoting effect of the fibers was investigated in vitro scratch assay. The results show that CAPE-loaded PLGA membranes are highly antimicrobial against all strains used in the experiment. Additionally, the results show that they are biocompatible and have wound healing properties on human fibroblasts.
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Affiliation(s)
- Seçil Kaya
- Yildiz Technical University, Faculty of Chemical and Metallurgical Engineering, Department of Bioengineering, Istanbul, Turkey
| | - Duygu Elif Yilmaz
- Charité - Universitätsmedizin Berlin, Department of Nephrology and Medical Intensive Care, Berlin, Germany
| | - Ilkgül Akmayan
- Yildiz Technical University, Faculty of Arts and Sciences, Department of Molecular Biology and Genetics, Istanbul, Turkey
| | - Ozlem Egri
- Tokat Gaziosmanpasa University, Faculty of Engineering and Natural Sciences, Department of Bioengineering, Tokat, Turkey
| | - Tülin Arasoglu
- Yildiz Technical University, Faculty of Arts and Sciences, Department of Molecular Biology and Genetics, Istanbul, Turkey
| | - Serap Derman
- Yildiz Technical University, Faculty of Chemical and Metallurgical Engineering, Department of Bioengineering, Istanbul, Turkey.
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11
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Yang S, Zhu J, Lu C, Chai Y, Cao Z, Lu J, Zhang Z, Zhao H, Huang YY, Yao S, Kong X, Zhang P, Wang X. Aligned fibrin/functionalized self-assembling peptide interpenetrating nanofiber hydrogel presenting multi-cues promotes peripheral nerve functional recovery. Bioact Mater 2021; 8:529-544. [PMID: 34541418 PMCID: PMC8435993 DOI: 10.1016/j.bioactmat.2021.05.056] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 05/07/2021] [Accepted: 05/28/2021] [Indexed: 12/19/2022] Open
Abstract
Nerve guidance conduits with hollow lumen fail to regenerate critical-sized peripheral nerve defects (15 mm in rats and 25 mm in humans), which can be improved by a beneficial intraluminal microenvironment. However, individual cues provided by intraluminal filling materials are inadequate to eliminate the functional gap between regenerated nerves and normal nerves. Herein, an aligned fibrin/functionalized self-assembling peptide (AFG/fSAP) interpenetrating nanofiber hydrogel that exerting synergistic topographical and biochemical cues for peripheral nerve regeneration is constructed via electrospinning and molecular self-assembly. The hydrogel possesses an aligned structure, high water content, appropriate mechanical properties and suitable biodegradation capabilities for nerve repair, which enhances the alignment and neurotrophin secretion of primary Schwann cells (SCs) in vitro, and successfully bridges a 15-mm sciatic nerve gap in rats in vivo. The rats transplanted with the AFG/fSAP hydrogel exhibit satisfactory morphological and functional recovery in myelinated nerve fibers and innervated muscles. The motor function recovery facilitated by the AFG/fSAP hydrogel is comparable with that of autografts. Moreover, the AFG/fSAP hydrogel upregulates the regeneration-associated gene expression and activates the PI3K/Akt and MAPK signaling pathways in the regenerated nerve. Altogether, the AFG/fSAP hydrogel represents a promising approach for peripheral nerve repair through an integration of structural guidance and biochemical stimulation. A novel aligned interpenetrating nanofiber hydrogel is first constructed for peripheral nerve regeneration. The aligned hydrogel presents synergistic topographical and biochemical cues for peripheral nerve regeneration. Nerve conduits filled with the aligned hydrogel can repair the long-distance sciatic nerve defects in 12 weeks. The function recovery facilitated by the aligned hydrogel is comparable with that of autografts. The aligned hydrogel upregulates regeneration-related genes and activates the PI3K/Akt and MAPK signaling pathways.
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Affiliation(s)
- Shuhui Yang
- State Key Laboratory of New Ceramics and Fine Processing, Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, PR China
| | - Jinjin Zhu
- State Key Laboratory of New Ceramics and Fine Processing, Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, PR China.,Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine & Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang, Hangzhou, 310016, PR China
| | - Changfeng Lu
- Key Laboratory of Trauma and Neural Regeneration, Peking University, Ministry of Education, Department of Trauma and Orthopedics, Peking University People's Hospital, Beijing, 100044, PR China
| | - Yi Chai
- School of Clinical Medicine, Tsinghua University, Beijing, 100084, PR China
| | - Zheng Cao
- State Key Laboratory of New Ceramics and Fine Processing, Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, PR China
| | - Jiaju Lu
- School of Materials Science and Engineering, Zhejiang-Mauritius Joint Research Center for Biomaterials and Tissue Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, PR China
| | - Zhe Zhang
- State Key Laboratory of New Ceramics and Fine Processing, Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, PR China
| | - He Zhao
- State Key Laboratory of New Ceramics and Fine Processing, Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, PR China
| | - Yin-Yuan Huang
- State Key Laboratory of New Ceramics and Fine Processing, Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, PR China
| | - Shenglian Yao
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, PR China
| | - Xiangdong Kong
- School of Materials Science and Engineering, Zhejiang-Mauritius Joint Research Center for Biomaterials and Tissue Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, PR China
| | - Peixun Zhang
- Key Laboratory of Trauma and Neural Regeneration, Peking University, Ministry of Education, Department of Trauma and Orthopedics, Peking University People's Hospital, Beijing, 100044, PR China
| | - Xiumei Wang
- State Key Laboratory of New Ceramics and Fine Processing, Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, PR China
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12
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Ebhodaghe SO. Natural Polymeric Scaffolds for Tissue Engineering Applications. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2021; 32:2144-2194. [PMID: 34328068 DOI: 10.1080/09205063.2021.1958185] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Natural polymeric scaffolds can be used for tissue engineering applications such as cell delivery and cell-free supporting of native tissues. This is because of their desirable properties such as; high biocompatibility, tunable mechanical strength and conductivity, large surface area, porous- and extracellular matrix (ECM)-mimicked structures. Specifically, their less toxicity and biocompatibility makes them suitable for several tissue engineering applications. For these reasons, several biopolymeric scaffolds are currently being explored for numerous tissue engineering applications. To date, research on the nature, chemistry, and properties of nanocomposite biopolymers are been reported, while the need for a comprehensive research note on more tissue engineering application of these biopolymers remains. As a result, this present study comprehensively reviews the development of common natural biopolymers as scaffolds for tissue engineering applications such as cartilage tissue engineering, cornea repairs, osteochondral defect repairs, and nerve regeneration. More so, the implications of research findings for further studies are presented, while the impact of research advances on future research and other specific recommendations are added as well.
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13
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Rodríguez-Barrera R, Rivas-González M, García-Sánchez J, Mojica-Torres D, Ibarra A. Neurogenesis after Spinal Cord Injury: State of the Art. Cells 2021; 10:cells10061499. [PMID: 34203611 PMCID: PMC8232196 DOI: 10.3390/cells10061499] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 05/24/2021] [Accepted: 06/08/2021] [Indexed: 01/06/2023] Open
Abstract
Neurogenesis in the adult state is the process of new neuron formation. This relatively infrequent phenomenon comprises four stages: cell proliferation, cell migration, differentiation, and the integration of these cells into an existing circuit. Recent reports suggest that neurogenesis can be found in different regions of the Central Nervous System (CNS), including the spinal cord (SC). This process can be observed in physiological settings; however, it is more evident in pathological conditions. After spinal cord injury (SCI), the activation of microglial cells and certain cytokines have shown to exert different modulatory effects depending on the presence of inflammation and on the specific region of the injury site. In these conditions, microglial cells and cytokines are considered to play an important role in the regulation of neurogenesis after SCI. The purpose of this article is to present an overview on neural progenitor cells and neurogenic and non-neurogenic zones as well as the cellular and molecular regulation of neurogenesis. Additionally, we will briefly describe the recent advances in the knowledge of neurogenesis after SCI.
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14
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Ucar B. Natural biomaterials in brain repair: A focus on collagen. Neurochem Int 2021; 146:105033. [PMID: 33785419 DOI: 10.1016/j.neuint.2021.105033] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 03/07/2021] [Accepted: 03/22/2021] [Indexed: 12/16/2022]
Abstract
Biomaterials derived from natural resources have increasingly been used for versatile applications in the central nervous system (CNS). Thanks to their biocompatibility and biodegradability, natural biomaterials offer vast possibilities for future clinical repair strategies for the CNS. These materials can be used for diverse applications such as hydrogels to fill the tissue cavities, microparticles to deliver drugs across the blood-brain barrier, and scaffolds to transplant stem cells. In this review, various uses of prominent protein and polysaccharide biomaterials, with a special focus on collagen, in repair and regenerative applications for the brain are summarized together with their individual advantages and disadvantages.
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Affiliation(s)
- Buket Ucar
- Laboratory of Psychiatry and Experimental Alzheimer's Research, Medical University of Innsbruck, Austria.
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15
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Amores de Sousa MC, Rodrigues CAV, Ferreira IAF, Diogo MM, Linhardt RJ, Cabral JMS, Ferreira FC. Functionalization of Electrospun Nanofibers and Fiber Alignment Enhance Neural Stem Cell Proliferation and Neuronal Differentiation. Front Bioeng Biotechnol 2020; 8:580135. [PMID: 33195141 PMCID: PMC7649414 DOI: 10.3389/fbioe.2020.580135] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Accepted: 09/24/2020] [Indexed: 01/29/2023] Open
Abstract
Neural stem cells (NSCs) have the potential to generate the cells of the nervous system and, when cultured on nanofiber scaffolds, constitute a promising approach for neural tissue engineering. In this work, the impact of combining nanofiber alignment with functionalization of the electrospun poly-ε-caprolactone (PCL) nanofibers with biological adhesion motifs on the culture of an NSC line (CGR8-NS) is evaluated. A five-rank scale for fiber density was introduced, and a 4.5 level, corresponding to 70–80% fiber density, was selected for NSC in vitro culture. Aligned nanofibers directed NSC distribution and, especially in the presence of laminin (PCL-LN) and the RGD-containing peptide GRGDSP (PCL-RGD), promoted higher cell elongation, quantified by the eccentricity and axis ratio. In situ differentiation resulted in relatively higher percentage of cells expressing Tuj1 in PCL-LN, as well as significantly longer neurite development (41.1 ± 1.0 μm) than PCL-RGD (32.0 ± 1.0 μm), pristine PCL (25.1 ± 1.2 μm), or PCL-RGD randomly oriented fibers (26.5 ± 1.4 μm), suggesting that the presence of LN enhances neuronal differentiation. This study demonstrates that aligned nanofibers, functionalized with RGD, perform as well as PCL-LN fibers in terms of cell adhesion and proliferation. The presence of the full LN protein improves neuronal differentiation outcomes, which may be important for the use of this system in tissue engineering applications.
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Affiliation(s)
- Miriam C Amores de Sousa
- Institute for Bioengineering and Biosciences, Department of Bioengineering, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
| | - Carlos A V Rodrigues
- Institute for Bioengineering and Biosciences, Department of Bioengineering, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
| | - Inês A F Ferreira
- Institute for Bioengineering and Biosciences, Department of Bioengineering, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
| | - Maria Margarida Diogo
- Institute for Bioengineering and Biosciences, Department of Bioengineering, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
| | - Robert J Linhardt
- Center for Biotechnology and Interdisciplinary Studies, Department of Chemistry and Chemical Biology, Rensselaer Polytechnic Institute, Troy, NY, United States
| | - Joaquim M S Cabral
- Institute for Bioengineering and Biosciences, Department of Bioengineering, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
| | - Frederico Castelo Ferreira
- Institute for Bioengineering and Biosciences, Department of Bioengineering, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
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16
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Zhang W, Yan H, Deng Y, Lou J, Zhang P, Cui Q, Sun H, Tang H, Sun Y, Yang J, Li D, Sun Y. Expression profile and bioinformatics analysis of circular RNA in intestinal mucosal injury and repair after severe burns. Cell Biol Int 2020; 44:2570-2587. [PMID: 32910511 DOI: 10.1002/cbin.11464] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 08/25/2020] [Accepted: 09/07/2020] [Indexed: 01/22/2023]
Abstract
Circular RNA (circRNA) is a novel noncoding RNA that is mostly found in humans and animals. Although the flux of circRNA research has increased in recent years, its precise function is still unclear. Some studies demonstrate that circRNAs can function as microRNA (miRNA) sponges involved in the regulation of competitive endogenous RNAs networks and play a crucial role in many biological processes. Other studies show that circRNAs play multiple biological roles in gastrointestinal diseases. However, the expression characteristics and function of circRNA in intestinal mucosal injury and repair after severe burn have not been reported. This study aims to screen differentially expressed circRNAs in intestinal mucosal injury and repair after severe burns and understand their underlying mechanisms. To test our hypothesis that circRNA may play a role in promoting repair in intestinal mucosa injury after severe burns, we collected the intestinal tissues of three severely burned mice and three pseudo-scalded mice and evaluated the expression of circRNAs via microarray analysis. Quantitative real-time polymerase chain reaction was also used to validate the circRNA microarray data by selecting six based on different multiples, original values, and p values. The host genes of all differentially expressed circRNAs and the downstream target genes of six selected DEcircRNAs were identified by Gene Ontology and the Kyoto Encyclopedia of Genes and Genomes pathway analysis. Meanwhile, we also created a circRNA-miRNA-mRNA network to predict the role and function of circRNAs in intestinal mucosal injury and repair after severe burns.
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Affiliation(s)
- Wenwen Zhang
- Department of Burn Surgery, The Affiliated Huaihai Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China.,Department of Burn Surgery, The 71st Group Army Hospital of PLA, Xuzhou, Jiangsu, China
| | - Hao Yan
- Department of Burn Surgery, The Affiliated Huaihai Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China.,Department of Burn Surgery, The 71st Group Army Hospital of PLA, Xuzhou, Jiangsu, China
| | - Yuequ Deng
- Department of Burn Surgery, The Affiliated Huaihai Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China.,Department of Burn Surgery, The 71st Group Army Hospital of PLA, Xuzhou, Jiangsu, China
| | - Jiaqi Lou
- Department of Burn Surgery, The Affiliated Huaihai Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China.,Department of Burn Surgery, The 71st Group Army Hospital of PLA, Xuzhou, Jiangsu, China
| | - Pan Zhang
- Department of Burn Surgery, The Affiliated Huaihai Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China.,Department of Burn Surgery, The 71st Group Army Hospital of PLA, Xuzhou, Jiangsu, China
| | - Qingwei Cui
- Department of Burn Surgery, The Affiliated Huaihai Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China.,Department of Burn Surgery, The 71st Group Army Hospital of PLA, Xuzhou, Jiangsu, China
| | - Han Sun
- Department of Burn Surgery, The Affiliated Huaihai Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China.,Department of Burn Surgery, The 71st Group Army Hospital of PLA, Xuzhou, Jiangsu, China
| | - Hao Tang
- Department of Burn Surgery, The Affiliated Huaihai Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China.,Department of Burn Surgery, The 71st Group Army Hospital of PLA, Xuzhou, Jiangsu, China
| | - Yuan Sun
- Department of Burn Surgery, The Affiliated Huaihai Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China.,Department of Burn Surgery, The 71st Group Army Hospital of PLA, Xuzhou, Jiangsu, China
| | - Juan Yang
- Department of Burn Surgery, The Affiliated Huaihai Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China.,Department of Burn Surgery, The 71st Group Army Hospital of PLA, Xuzhou, Jiangsu, China
| | - Dan Li
- Department of Burn Surgery, The Affiliated Huaihai Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China.,Department of Burn Surgery, The 71st Group Army Hospital of PLA, Xuzhou, Jiangsu, China
| | - Yong Sun
- Department of Burn Surgery, The Affiliated Huaihai Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China.,Department of Burn Surgery, The 71st Group Army Hospital of PLA, Xuzhou, Jiangsu, China
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17
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Yang L, Jurczak KM, Ge L, Rijn P. High-Throughput Screening and Hierarchical Topography-Mediated Neural Differentiation of Mesenchymal Stem Cells. Adv Healthc Mater 2020; 9:e2000117. [PMID: 32363812 DOI: 10.1002/adhm.202000117] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 02/27/2020] [Indexed: 12/12/2022]
Abstract
Biophysical factors such as anisotropic topography composed of micro/nanosized structures are important for directing the fate of human bone marrow-derived mesenchymal stem cells (hBM-MSCs) and have been applied to neuronal differentiation. Via high-throughput screening (HTS) methods based on topography gradients, the optimum topography is determined and translated toward a hierarchical architecture designed to mimic the nerve nano/microstructure. The polydimethylsiloxane (PDMS)-based topography gradient with amplitudes (A) from 541 to 3073 nm and wavelengths (W) between 4 and 30 µm is developed and the fate commitment of MSC toward neuron lineage is investigated. The hierarchical structures, combining nano- and microtopography (W0.3/W26 parallel/perpendicular) are fabricated to explore the combined topography effects on neuron differentiation. From the immunofluorescent staining results (Tuj1 and MAP2), the substrate characterized by W: 26 µm; A: 2.9 µm shows highest potential for promoting neurogenesis. Furthermore, the hierarchical features (W0.3/W26 parallel) significantly enhance neural differentiation. The hBM-MSCs on the hierarchical substrates exhibit a significantly lower percentage of nuclear Yes-associated protein (YAP)/TAZ and weaker cell contractility indicating that the promoted neurogenesis is mediated by the cell tension and YAP/TAZ pathway. This research provides new insight into designing biomaterials for applications in neural tissue engineering and contributes to the understanding of topography-mediated neuronal differentiation.
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Affiliation(s)
- Liangliang Yang
- Department of Biomedical Engineering University Medical Center GroningenUniversity of Groningen Groningen, A. Deusinglaan 1 Groningen 9713 AV The Netherlands
| | - Klaudia Malgorzata Jurczak
- Department of Biomedical Engineering University Medical Center GroningenUniversity of Groningen Groningen, A. Deusinglaan 1 Groningen 9713 AV The Netherlands
| | - Lu Ge
- Department of Biomedical Engineering University Medical Center GroningenUniversity of Groningen Groningen, A. Deusinglaan 1 Groningen 9713 AV The Netherlands
| | - Patrick Rijn
- Department of Biomedical Engineering University Medical Center GroningenUniversity of Groningen Groningen, A. Deusinglaan 1 Groningen 9713 AV The Netherlands
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18
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Liu D, Pavathuparambil Abdul Manaph N, Al-Hawwas M, Bobrovskaya L, Xiong LL, Zhou XF. Coating Materials for Neural Stem/Progenitor Cell Culture and Differentiation. Stem Cells Dev 2020; 29:463-474. [PMID: 32106778 DOI: 10.1089/scd.2019.0288] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Neural stem/progenitor cells (NSPCs) have a potential to treat various neurological diseases, such as Parkinson's Disease, Alzheimer's Disease, and Spinal Cord Injury. However, the limitation of NSPC sources and the difficulty to maintain their stemness or to differentiate them into specific therapeutic cells are the main hurdles for clinical research and application. Thus, for obtaining a therapeutically relevant number of NSPCs in vitro, it is important to understand factors regulating their behaviors and to establish a protocol for stable NSPC proliferation and differentiation. Coating materials for cell culture, such as Matrigel, laminin, collagen, and other coating materials, can significantly affect NSPC characteristics. This article provides a review of coating materials for NSPC culturing in both two dimensions and three dimensions, and their functions in NSPC proliferation and differentiation, and presents a useful guide to select coating materials for researchers.
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Affiliation(s)
- Donghui Liu
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, Australia
| | | | - Mohammed Al-Hawwas
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, Australia
| | - Larisa Bobrovskaya
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, Australia
| | - Liu-Lin Xiong
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, Australia
| | - Xin-Fu Zhou
- School of Pharmacy and Medical Sciences, University of South Australia, Adelaide, Australia
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19
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Jang SR, Kim JI, Park CH, Kim CS. The controlled design of electrospun PCL/silk/quercetin fibrous tubular scaffold using a modified wound coil collector and L-shaped ground design for neural repair. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 111:110776. [PMID: 32279813 DOI: 10.1016/j.msec.2020.110776] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 02/18/2020] [Accepted: 02/24/2020] [Indexed: 12/28/2022]
Abstract
Asymmetrically porous and aligned fibrous tubular conduit with selective permeability as a biomimetic neural scaffold was manufactured using polycaprolactone (PCL), silk, and quercetin by a modified electrospinning method. The outer surface of the randomly oriented fibrous scaffold had microscale pores that could prevent fibrous tissue invasion (FTI), but could permeate neurotrophic factors, nutrients, and oxygen. The inner surface of the aligned fibrous scaffold can be favorable for neurite outgrowth, because of their superior neural cell attachment, migration, and directional growth. In vitro and in vivo studies have demonstrated the therapeutic effect of Quercetin, a ubiquitous flavonoid widely distributed in plants, on neuropathy, by modulating the expression of NRF-2-dependent antioxidant responsive elements. In this study, the controlled inner and outer surface geometry of the 0.5, 1.0, and 2.0 wt% quercetin-containing electrospun PCL/silk fibrous tubular scaffold fabricated via a modified wound coil collector and L-shaped ground design (WCC-LG) was characterized by FE-SEM, TEM, FFT, FT-IR, and XRD. In addition, two types of neural cell lines, PC12 and S42, were used to evaluate the cell proliferation rate of the different amount of quercetin-loaded PCL/silk tubular scaffolds.
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Affiliation(s)
- Se Rim Jang
- Department of Bionanosystem Engineering, Graduate School, Jeonbuk National University, Jeonju 561-756, Republic of Korea
| | - Jeong In Kim
- Department of Bionanosystem Engineering, Graduate School, Jeonbuk National University, Jeonju 561-756, Republic of Korea
| | - Chan Hee Park
- Department of Bionanosystem Engineering, Graduate School, Jeonbuk National University, Jeonju 561-756, Republic of Korea; Division of Mechanical Design Engineering, College of Engineering, Jeonbuk National University, Jeonju 561-756, Republic of Korea.
| | - Cheol Sang Kim
- Department of Bionanosystem Engineering, Graduate School, Jeonbuk National University, Jeonju 561-756, Republic of Korea; Division of Mechanical Design Engineering, College of Engineering, Jeonbuk National University, Jeonju 561-756, Republic of Korea.
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20
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Tang KC, Yang KC, Lin CW, Chen YK, Lu TY, Chen HY, Cheng NC, Yu J. Human Adipose-Derived Stem Cell Secreted Extracellular Matrix Incorporated into Electrospun Poly(Lactic- co-Glycolic Acid) Nanofibrous Dressing for Enhancing Wound Healing. Polymers (Basel) 2019; 11:E1609. [PMID: 31623334 PMCID: PMC6835469 DOI: 10.3390/polym11101609] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 09/26/2019] [Accepted: 09/29/2019] [Indexed: 12/23/2022] Open
Abstract
Wound dressing, which prevents dehydration and provides a physical barrier against infection to wound beds, can improve wound healing. The interactions between extracellular matrix (ECM) and growth factors is critical to the healing process. Electrospun nanofibers are promising templates for wound dressings due to the structure similarity to ECM of skin. Otherwise, the ECM secreted by human adipose-derived stem cells (hASCs) is rich in growth factors known to enhance wound healing. Accordingly, we propose that the PLGA nanofibrous template incorporated with hASCs-secreted ECM may enhance wound healing. In this study, PLGA nanofibrous matrixes with an aligned or a random structure were prepared by electrospinning. Human ASCs cultured on the aligned matrix had a better viability and produced a larger amount of ECM relative to that of random one. After 7 days' cultivation, the hASCs on aligned PLGA substrates underwent decellularization to fabricate cECM/PLGA dressings. By using immunohistochemical staining against F-actin and cell nucleus, the removal of cellular components was verified. However, the type I collagen and laminin were well preserved on the cECM/PLGA nanofibrous matrixes. In addition, this substrate was hydrophilic, with appropriate mechanical strength to act as a wound dressing. The L929 fibroblasts had good activity, survival and proliferation on the cECM/PLGA meshes. In addition, the cECM/PLGA nanofibrous dressings improved the wound healing of surgically created full-thickness skin excision in a mouse model. This hASCs-secreted ECM incorporated into electrospun PLGA nanofibrous could be a promising dressing for enhancing wound healing.
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Affiliation(s)
- Kao-Chun Tang
- Department of Chemical Engineering, College of Engineering, National Taiwan University, Taipei 106, Taiwan.
| | - Kai-Chiang Yang
- School of Dental Technology, Taipei Medical University, Taipei 106, Taiwan.
| | - Che-Wei Lin
- Department of Chemical Engineering, College of Engineering, National Taiwan University, Taipei 106, Taiwan.
| | - Yi-Kai Chen
- Department of Chemical Engineering, College of Engineering, National Taiwan University, Taipei 106, Taiwan.
| | - Ting-Yu Lu
- Department of Chemical Engineering, College of Engineering, National Taiwan University, Taipei 106, Taiwan.
| | - Hsien-Yeh Chen
- Department of Chemical Engineering, College of Engineering, National Taiwan University, Taipei 106, Taiwan.
| | - Nai-Chen Cheng
- Department of Surgery, National Taiwan University Hospital, Taipei 100, Taiwan.
| | - Jiashing Yu
- Department of Chemical Engineering, College of Engineering, National Taiwan University, Taipei 106, Taiwan.
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21
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Leal CV, Santos Almeida R, Dávila JL, Domingues JA, Hausen MA, Duek EAR, d’Ávila MA. Characterization and
in vitro
evaluation of electrospun aligned‐fiber membranes of poly(
L
‐co‐
D
,
L
‐lactic acid). J Appl Polym Sci 2019. [DOI: 10.1002/app.47657] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Claudenete Vieira Leal
- Department of Manufacturing and Materials EngineeringSchool of Mechanical Engineering, University of Campinas (UNICAMP) Campinas CEP 13083‐860 Brazil
| | - Rosemeire Santos Almeida
- Department of Manufacturing and Materials EngineeringSchool of Mechanical Engineering, University of Campinas (UNICAMP) Campinas CEP 13083‐860 Brazil
- Faculty of Technology Arthur de Azevedo (FATEC‐Mogi Mirim) Mogi Mirim CEP 13801‐005 Brazil
- Faculty of Technology (FATEC‐Mauá) Mauá CEP 09390‐120 Brazil
| | - José Luis Dávila
- Department of Manufacturing and Materials EngineeringSchool of Mechanical Engineering, University of Campinas (UNICAMP) Campinas CEP 13083‐860 Brazil
| | - Juliana Almeida Domingues
- Department of Cellular and Structural BiologyInstitute of Biology, University of Campinas (UNICAMP) Campinas CEP 13083‐862 Brazil
| | - Moema A. Hausen
- Faculty of Medical SciencesPontifical Catholic University of São Paulo (PUC‐SP) Sorocaba CEP 18030‐095 Brazil
| | - Eliana A. Rezende Duek
- Department of Manufacturing and Materials EngineeringSchool of Mechanical Engineering, University of Campinas (UNICAMP) Campinas CEP 13083‐860 Brazil
- Faculty of Medical SciencesPontifical Catholic University of São Paulo (PUC‐SP) Sorocaba CEP 18030‐095 Brazil
| | - Marcos Akira d’Ávila
- Department of Manufacturing and Materials EngineeringSchool of Mechanical Engineering, University of Campinas (UNICAMP) Campinas CEP 13083‐860 Brazil
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22
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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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Wu Z, Kong B, Liu R, Sun W, Mi S. Engineering of Corneal Tissue through an Aligned PVA/Collagen Composite Nanofibrous Electrospun Scaffold. NANOMATERIALS (BASEL, SWITZERLAND) 2018; 8:E124. [PMID: 29495264 PMCID: PMC5853755 DOI: 10.3390/nano8020124] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 02/06/2018] [Accepted: 02/13/2018] [Indexed: 01/04/2023]
Abstract
Corneal diseases are the main reason of vision loss globally. Constructing a corneal equivalent which has a similar strength and transparency with the native cornea, seems to be a feasible way to solve the shortage of donated cornea. Electrospun collagen scaffolds are often fabricated and used as a tissue-engineered cornea, but the main drawback of poor mechanical properties make it unable to meet the requirement for surgery suture, which limits its clinical applications to a large extent. Aligned polyvinyl acetate (PVA)/collagen (PVA-COL) scaffolds were electrospun by mixing collagen and PVA to reinforce the mechanical strength of the collagen electrospun scaffold. Human keratocytes (HKs) and human corneal epithelial cells (HCECs) inoculated on aligned and random PVA-COL electrospun scaffolds adhered and proliferated well, and the aligned nanofibers induced orderly HK growth, indicating that the designed PVA-COL composite nanofibrous electrospun scaffold is suitable for application in tissue-engineered cornea.
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Affiliation(s)
- Zhengjie Wu
- Precision Medicine and Healthcare Research Center, Tsinghua-Berkeley Shenzhen Institute, Shenzhen 518055, China.
- Biomanufacturing Engineering Laboratory, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China.
| | - Bin Kong
- Precision Medicine and Healthcare Research Center, Tsinghua-Berkeley Shenzhen Institute, Shenzhen 518055, China.
- Biomanufacturing Engineering Laboratory, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China.
| | - Rui Liu
- Biomanufacturing Engineering Laboratory, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China.
| | - Wei Sun
- Precision Medicine and Healthcare Research Center, Tsinghua-Berkeley Shenzhen Institute, Shenzhen 518055, China.
- Biomanufacturing Engineering Laboratory, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China.
- Department of Mechanical Engineering and Mechanics, Tsinghua University, Beijing 100084, China.
- Department of Mechanical Engineering, Drexel University, Philadelphia, PA 19104, USA.
| | - Shengli Mi
- Biomanufacturing Engineering Laboratory, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China.
- Open FIESTA Center, Tsinghua University, Shenzhen 518055, China.
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Hong MH, Hong HJ, Pang H, Lee HJ, Yi S, Koh WG. Controlled Release of Growth Factors from Multilayered Fibrous Scaffold for Functional Recoveries in Crushed Sciatic Nerve. ACS Biomater Sci Eng 2018; 4:576-586. [PMID: 33418747 DOI: 10.1021/acsbiomaterials.7b00801] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
In this study, we designed and fabricated a multilayered fibrous scaffold capable of the controlled release of multiple growth factors for sciatic nerve regeneration in rats. The scaffold consists of three layers prepared by sequential electrospinning, where the first layer is fabricated using polycaprolactone (PCL)-aligned electrospun nanofibers for the attachment and differentiation of cells toward the direction of the sciatic nerve. The second and third layers are fabricated using poly(lactic-co-glycolic acid) 6535 (PLGA 6535) and 8515 (PLGA 8515), respectively. The resultant three nanofiber layers were stacked and fixed by incorporating hydrogel micropatterns at both ends of nanofiber scaffold, which also facilitated the surgical handling of the multilayered scaffolds. The PLGA layers acted as reservoirs to release growth factors neurotrophin (NT-3), brain-derived neurotrophic factor (BDNF), and platelet-derived growth factor (PDGF). The different biodegradation rate of each PLGA layer enabled the controlled release of multiple growth factors such as NT-3, BDNF, and PDGF with different patterns. In a rat model, the injured nerve was rolled up with the multilayered scaffold loading growth factors, and behavior tests were performed five weeks after surgery. Sciatic functional index (SFI) and mechanical allodynia analysis revealed that the fast release of NT-3 and BDNF from PLGA 6535 and subsequent slow release of PDGF from PLGA 8515 proved to be the greatest aid to neural tissue regeneration. In addition to the biochemical cues from growth factors, the aligned PCL layer that directly contacts the injured nerve could provide topographical stimulation, offering practical assistance to new tissue and cells for directional growth parallel to the sciatic nerve. This study demonstrated that our multilayered scaffold performs a function that can be used to promote locomotor activity and enhance nerve regeneration in combination with align-patterned topography and the controlled release of growth factors.
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Affiliation(s)
- Min-Ho Hong
- Department of Neurosurgery, Spine and Spinal Cord Institute, College of Medicine, Yonsei University, Seoul 03722, Republic of Korea
| | - Hye Jin Hong
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Haejeong Pang
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul 03722, Republic of Korea
| | - Hyo-Jung Lee
- Department of Neurosurgery, Spine and Spinal Cord Institute, College of Medicine, Yonsei University, Seoul 03722, Republic of Korea
| | - Seong Yi
- Department of Neurosurgery, Spine and Spinal Cord Institute, College of Medicine, Yonsei University, Seoul 03722, Republic of Korea
| | - Won-Gun Koh
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul 03722, Republic of Korea
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Zhang J, Sun Y, Zhao Y, Wei B, Xu C, He L, Oliveira CLP, Wang H. Centrifugation-induced fibrous orientation in fish-sourced collagen matrices. SOFT MATTER 2017; 13:9220-9228. [PMID: 29199311 DOI: 10.1039/c7sm01871a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Orientation of fibrous collagen structures plays an important role not only in the native function of various biological tissues but also in the development of next-generation tissue engineering scaffolds. However, the controlled assembly of collagen in vitro into an anisotropic structure, avoiding complex technical procedures and specialized apparatus, remains a challenge. Here, an oriented collagen matrix was fabricated at the macroscale by simple centrifugation, and the aligned topographical features of the resulting collagen matrix were revealed by scanning electron microscopy (SEM), transmission electron microscopy (TEM), and small angle X-ray scattering. The aligned matrix exhibited a higher ultimate tensile strength and strain than a random matrix. Centrifugation had an impact on the diameter and density of the collagen fibrils, while it had no effect on their native D-periodicity and thermal stability. Additionally, structural anisotropy of the collagen matrix facilitated the proliferation and migration of NIH/3T3 fibroblasts, compared with the random one. This simple and cost-effective method could lead to mass production of aligned collagen matrices and future possibilities for different applications in tissue engineering.
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Affiliation(s)
- Juntao Zhang
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan, Hubei, China.
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Chaudhuri PK, Pan CQ, Low BC, Lim CT. Differential Depth Sensing Reduces Cancer Cell Proliferation via Rho-Rac-Regulated Invadopodia. ACS NANO 2017; 11:7336-7348. [PMID: 28654281 DOI: 10.1021/acsnano.7b03452] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Bone, which is composed of a porous matrix, is one of the principal secondary locations for cancer. However, little is known about the effect of this porous microenvironment in regulating cancer cell proliferation. Here, we examine how the depth of the pores can transduce a mechanical signal and reduce the proliferation of noncancer breast epithelial cells (MCF-10A) and malignant breast cancer cells (MDA-MB-231 and MCF-7) using micrometer-scale topographic features. Interestingly, cells extend actin-rich protrusions, such as invadopodia, to sense the depth of the matrix pore and activate actomyosin contractility to decrease MCF-10A proliferation. However, in MDA-MB-231, depth sensing inactivates Rho-Rac-regulated actomyosin contractility and phospho-ERK signaling. Inhibiting contractility on this porous matrix using blebbistatin further reduces MDA-MB-231 proliferation. Our findings support the notion of mechanically induced dormancy through depth sensing, where invadopodia-mediated depth sensing can inhibit the proliferation of noncancer and malignant breast cancer cells through differential regulation of actomyosin contractility.
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Affiliation(s)
- Parthiv Kant Chaudhuri
- Mechanobiology Institute, National University of Singapore , 5A Engineering Drive 1, Singapore 117411, Singapore
| | - Catherine Qiurong Pan
- Mechanobiology Institute, National University of Singapore , 5A Engineering Drive 1, Singapore 117411, Singapore
| | - Boon Chuan Low
- Mechanobiology Institute, National University of Singapore , 5A Engineering Drive 1, Singapore 117411, Singapore
- Cell Signaling and Developmental Biology Laboratory, Department of Biological Sciences, National University of Singapore , Singapore 117543, Singapore
- University Scholars Programme, National University of Singapore , Singapore 138593, Singapore
| | - Chwee Teck Lim
- Mechanobiology Institute, National University of Singapore , 5A Engineering Drive 1, Singapore 117411, Singapore
- Department of Biomedical Engineering, National University of Singapore , 9 Engineering Drive 1, Singapore 117576, Singapore
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Lin HY, Tsai WC, Chang SH. Collagen-PVA aligned nanofiber on collagen sponge as bi-layered scaffold for surface cartilage repair. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2017; 28:664-678. [DOI: 10.1080/09205063.2017.1295507] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Hsin-Yi Lin
- Graduate Institute of Biochemical and Biomedical Engineering, National Taipei University of Technology, Taipei, Taiwan
| | - Wen-Chi Tsai
- Graduate Institute of Chemical Engineering, National Taipei University of Technology, Taipei, Taiwan
| | - Shih-Hsing Chang
- Department of Plastic Surgery, Mackay Memorial Hospital, Taipei, Taiwan
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28
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Shin HS, Kook YM, Hong HJ, Kim YM, Koh WG, Lim JY. Functional spheroid organization of human salivary gland cells cultured on hydrogel-micropatterned nanofibrous microwells. Acta Biomater 2016; 45:121-132. [PMID: 27592814 DOI: 10.1016/j.actbio.2016.08.058] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Revised: 08/19/2016] [Accepted: 08/31/2016] [Indexed: 01/07/2023]
Abstract
Development of a tissue-engineered, salivary bio-gland will benefit patients suffering from xerostomia due to loss of fluid-secreting acinar cells. This study was conducted to develop a bioengineering system to induce self-assembly of human parotid epithelial cells (hPECs) cultured on poly ethylene glycol (PEG) hydrogel-micropatterned polycaprolactone (PCL) nanofibrous microwells. Microwells were fabricated by photopatterning of PEG hydrogel in the presence of an electrospun PCL nanofibrous scaffold. hPECs were plated on plastic dishes, Matrigel, PCL nanofibers, or PCL nanofibrous microwells. When the cells were plated onto plastic, they did not form spheres, but aggregated to form 3D acinar-like spheroids when cultured on Matrigel, PCL, and PCL microwells, with the greatest aggregating potency being observed on the PCL microwells. The 3D-assembled spheroids in the PCL microwells expressed higher levels of salivary epithelial markers (α-amylase and AQP5), tight junction proteins (ZO-1 and occludin), adherence protein (E-cadherin), and cytoskeletal protein (F-actin) than those on the Matrigel and PCL. Furthermore, the 3D-assembled spheroids in the PCL microwells showed higher levels of α-amylase secretion and intracellular calcium concentration ([Ca2+]i) than those on the Matrigel and PCL nanofibers, suggesting more functional organization of hPECs. We established a bioengineering 3D culture system to promote robust and functional acinar-like organoids from hPECs. PCL nanofibrous microwells can be applied in the future for bioengineering of an artificial bio-salivary gland for restoration of salivary function. STATEMENT OF SIGNIFICANCE Three dimensional (3D) cultures of salivary glandular epithelial cells using nanofibrous bottom facilitate the formation of acinar-like organoids. In this study, we adapted a PEG hydrogel-micropatterned PCL nanofibrous microwell for the efficient bioengineering of human salivary gland organoids, in which we could easily produce uniform size of 3D organoids. This 3D culture system supports spherical organization, gene and protein expression of acinar markers, TJ proteins, adherence, and cytoskeletal proteins, as well as to promote epithelial structural integrity and acinar secretory functions, and results showed superior efficiency relative to Matrigel and nanofibrous scaffold culture. This 3D culture system has benefits in terms of inert, non-animal and serum-free culture conditions, as well as controllable spheroid size and scalable production of functional SG organoids and is applicable to bioengineering approaches for an artificial bio-gland, as well as to investigations of salivary gland physiology and regeneration.
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Affiliation(s)
- Hyun-Soo Shin
- Department of Otorhinolaryngology-Head and Neck Surgery, Inha University College of Medicine, Incheon, Republic of Korea
| | - Yun-Min Kook
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul, Republic of Korea
| | - Hye Jin Hong
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul, Republic of Korea
| | - Young-Mo Kim
- Department of Otorhinolaryngology-Head and Neck Surgery, Inha University College of Medicine, Incheon, Republic of Korea
| | - Won-Gun Koh
- Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul, Republic of Korea.
| | - Jae-Yol Lim
- Department of Otorhinolaryngology-Head and Neck Surgery, Inha University College of Medicine, Incheon, Republic of Korea.
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Gao X, Song J, Zhang Y, Xu X, Zhang S, Ji P, Wei S. Bioinspired Design of Polycaprolactone Composite Nanofibers as Artificial Bone Extracellular Matrix for Bone Regeneration Application. ACS APPLIED MATERIALS & INTERFACES 2016; 8:27594-27610. [PMID: 27690143 DOI: 10.1021/acsami.6b10417] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The design and development of functional biomimetic systems for programmed stem cell response is a field of topical interest. To mimic bone extracellular matrix, we present an innovative strategy for constructing drug-loaded composite nanofibrous scaffolds in this study, which could integrate multiple cues from calcium phosphate mineral, bioactive molecule, and highly ordered fiber topography for the control of stem cell fate. Briefly, inspired by mussel adhesion mechanism, a polydopamine (pDA)-templated nanohydroxyapatite (tHA) was synthesized and then surface-functionalized with bone morphogenetic protein-7-derived peptides via catechol chemistry. Afterward, the resulting peptide-loaded tHA (tHA/pep) particles were blended with polycaprolactone (PCL) solution to fabricate electrospun hybrid nanofibers with random and aligned orientation. Our research demonstrated that the bioactivity of grafted peptides was retained in composite nanofibers. Compared to controls, PCL-tHA/pep composite nanofibers showed improved cytocompatibility. Moreover, the incorporated tHA/pep particles in nanofibers could further facilitate osteogenic differentiation potential of human mesenchymal stem cells (hMSCs). More importantly, the aligned PCL-tHA/pep composite nanofibers showed more osteogenic activity than did randomly oriented counterparts, even under nonosteoinductive conditions, indicating excellent performance of biomimetic design in cell fate decision. After in vivo implantation, the PCL-tHA/pep composite nanofibers with highly ordered structure could significantly promote the regeneration of lamellar-like bones in a rat calvarial critical-sized defect. Accordingly, the presented strategy in our work could be applied for a wide range of potential applications in not only bone regeneration application but also pharmaceutical science.
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Affiliation(s)
- Xiang Gao
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education , Chongqing 401147, China
| | - Jinlin Song
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education , Chongqing 401147, China
| | - Yancong Zhang
- Department of Oral and Maxillofacial Surgery, Central Laboratory, Peking University School and Hospital of Stomatology , Beijing 100081, China
| | - Xiao Xu
- Department of Oral and Maxillofacial Surgery, Central Laboratory, Peking University School and Hospital of Stomatology , Beijing 100081, China
| | - Siqi Zhang
- Center for Biomedical Materials and Tissue Engineering, Academy for Advanced Interdisciplinary Studies, Peking University , Beijing 100871, China
| | - Ping Ji
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education , Chongqing 401147, China
| | - Shicheng Wei
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education , Chongqing 401147, China
- Department of Oral and Maxillofacial Surgery, Central Laboratory, Peking University School and Hospital of Stomatology , Beijing 100081, China
- Center for Biomedical Materials and Tissue Engineering, Academy for Advanced Interdisciplinary Studies, Peking University , Beijing 100871, China
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30
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Weigelin B, Friedl P. Cancer cells: Stemness shaped by curvature. NATURE MATERIALS 2016; 15:827-828. [PMID: 27443907 DOI: 10.1038/nmat4711] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Affiliation(s)
- Bettina Weigelin
- David H. Koch Center for Applied Research of Genitourinary Cancers, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA and in the Department of Cell Biology, Radboud University Medical Centre, 6525GA Nijmegen, Netherlands
| | - Peter Friedl
- David H. Koch Center for Applied Research of Genitourinary Cancers, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA and in the Department of Cell Biology, Radboud University Medical Centre, 6525GA Nijmegen, Netherlands
- Cancer Genomics Center, 3584 CG Utrecht, Netherlands
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31
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Nanofiber-expanded stem cells mitigate liver fibrosis: Experimental study. Tissue Cell 2016; 48:544-51. [PMID: 27481213 DOI: 10.1016/j.tice.2016.06.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Revised: 05/29/2016] [Accepted: 06/10/2016] [Indexed: 01/26/2023]
Abstract
OBJECTIVES This study examines a pretreatment strategy to strengthen the hepatic lineage divergence of mesenchymal stem cells (MSCs). DESIGN AND METHODS BMSCs were expanded in the presence or absence of nanofiber (NF) and treated with growth factors (GF) prior to transplantation. Thioacetamide (TA) was used for liver fibrosis induction and transplantation of NF-expanded BMSCs was compared biochemically and histologically to the cells expanded without NF scaffold. RESULTS The ultraweb NF caused better proliferation and characterization of MSCs. MSCs transplantation significantly improved liver functions, increased hepatic HGF and Bcl-2 levels, whereas decreased serum fibronectin, hepatic TNF-α and TGF-β1 levels. Hepatic HNF4α, FOXa2, CYP7a1 genes expression were enhanced while β-5-Tub and AFP genes expression were depressed. Histological study documented these results. Differentiated NF-MSCs showed pronounced enhancement of the aforementioned parameters as compared to differentiated MSCs in the absence of NF. CONCLUSION pretreatment with growth factors in the presence of NF augment homing, repopulation and hepatic differentiation abilities of MSCs and proves to be a promising approach for the treatment of liver fibrosis.
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Schaub NJ, Johnson CD, Cooper B, Gilbert RJ. Electrospun Fibers for Spinal Cord Injury Research and Regeneration. J Neurotrauma 2016; 33:1405-15. [PMID: 26650778 DOI: 10.1089/neu.2015.4165] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Electrospinning is the process by which a scaffold containing micrometer and nanometer diameter fibers are drawn from a polymer solution or melt using a large voltage gradient between a polymer emitting source and a grounded collector. Ramakrishna and colleagues first investigated electrospun fibers for neural applications in 2004. After this initial study, electrospun fibers are increasingly investigated for neural tissue engineering applications. Electrospun fibers robustly support axonal regeneration within in vivo rodent models of spinal cord injury. These findings suggest the possibility of their eventual use within patients. Indeed, both spinal cord and peripheral nervous system regeneration research over the last several years shows that physical guidance cues induce recovery of limb, respiration, or bladder control in rodent models. Electrospun fibers may be an alternative to the peripheral nerve graft (PNG), because PNG autografts injure the patient and are limited in supply, and allografts risk host rejection. In addition, electrospun fibers can be engineered easily to confront new therapeutic challenges. Fibers can be modified to release therapies locally or can be physically modified to direct neural stem cell differentiation. This review summarizes the major findings and trends in the last decade of research, with a particular focus on spinal cord injury. This review also demonstrates how electrospun fibers can be used to study the central nervous system in vitro.
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Affiliation(s)
- Nicholas J Schaub
- 1 Center for Biotechnology and Interdisciplinary Studies, Rensselear Polytechnic Institute , Troy, New York.,2 Department of Biomedical Engineering, Rensselear Polytechnic Institute , Troy, New York
| | - Christopher D Johnson
- 1 Center for Biotechnology and Interdisciplinary Studies, Rensselear Polytechnic Institute , Troy, New York.,2 Department of Biomedical Engineering, Rensselear Polytechnic Institute , Troy, New York
| | | | - Ryan J Gilbert
- 1 Center for Biotechnology and Interdisciplinary Studies, Rensselear Polytechnic Institute , Troy, New York.,2 Department of Biomedical Engineering, Rensselear Polytechnic Institute , Troy, New York
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33
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Lowe CJ, Reucroft IM, Grota MC, Shreiber DI. Production of Highly Aligned Collagen Scaffolds by Freeze-drying of Self-assembled, Fibrillar Collagen Gels. ACS Biomater Sci Eng 2016; 2:643-651. [PMID: 27430016 DOI: 10.1021/acsbiomaterials.6b00036] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Matrix and cellular alignment are critical factors in the native function of many tissues, including muscle, nerve, and ligaments. Collagen is frequently a component of these aligned tissues, and collagen biomaterials are widely used in tissue engineering applications. However, the generation of aligned collagen scaffolds that maintain the native architecture of collagen fibrils has not been straightforward, with many methods requiring specialized equipment or technical procedures, extensive incubation times, or denaturing of the collagen. Herein, we present a simple, rapid method for fabrication of highly aligned collagen scaffolds. Collagen was assembled to form a fibrillar hydrogel in a cylindrical conduit with high aspect ratio and then frozen and lyophilized. The resulting collagen scaffolds demonstrated highly aligned topographical features along the scaffold surface. This presence of an initial fibrillar network and the high-aspect ratio vessel were both required to generate alignment. The diameter of fabricated scaffolds was found to vary significantly with both the collagen concentration of the hydrogel suspension and the diameter of conduits used for fabrication. Additionally, the size of individual aligned topographical features was significantly dependent on the conduit diameter and the freezing temperature. When cultured on aligned collagen scaffolds, both rat dermal fibroblasts and axons emerging from chick dorsal root ganglia explants demonstrated elongated, aligned morphology and growth on the aligned topographical features. Overall, this method presents a simple means for generating aligned collagen scaffolds that can be applied to a wide variety of tissue types, particularly those where such alignment is critical to native function.
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Affiliation(s)
- Christopher J Lowe
- Department of Biomedical Engineering, Rutgers, The State University of New Jersey, 599 Taylor Road, Piscataway, New Jersey 08854, United States
| | - Ian M Reucroft
- Department of Biomedical Engineering, Rutgers, The State University of New Jersey, 599 Taylor Road, Piscataway, New Jersey 08854, United States
| | - Matthew C Grota
- Department of Bioengineering, University of Massachusetts Dartmouth, 285 Old Westport Road, Dartmouth, Massachusetts 02747, United States
| | - David I Shreiber
- Department of Biomedical Engineering, Rutgers, The State University of New Jersey, 599 Taylor Road, Piscataway, New Jersey 08854, United States
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He XL, Zhao YX, Ge LL, An HQ, Su Y, Jin ZL, Wei DS, Chen L. Micropatterned fabrication of chitosan-based thermoresponsive membranes for improving cell adhesion and gene expression. J BIOACT COMPAT POL 2016. [DOI: 10.1177/0883911515623080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
A simple, rapid, and economical method to fabricate micropatterned thermoresponsive chitosan membranes was developed. Porous polystyrene films were prepared by liquid-induced phase separation. The size of pores on polystyrene films could be regulated by adjusting the composition of coagulation bath and changing the solvent evaporation rate. Subsequently, chitosan-based thermoresponsive membranes with island protrusions were fabricated using porous polystyrene films as templates. The effects of the micropatterns on the behaviors of mouse fibroblast L929 were investigated. The presence of micropatterns altered the cell cycle distribution and enhanced the gene expression of cyclin D1 and integrin β1. The micro-convex surface could promote the adhesion and proliferation of L929 cells. These results provided valuable guidance to design appropriate topographic surfaces for tissue engineering applications.
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Affiliation(s)
- Xiao-Ling He
- School of Environment and Chemical Engineering, Tianjin Polytechnic University, Tianjin, China
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Key Laboratory of Fiber Modification and Functional Fiber, Tianjin Polytechnic University, Tianjin, China
| | - Yu-Xin Zhao
- School of Environment and Chemical Engineering, Tianjin Polytechnic University, Tianjin, China
| | - Li-Li Ge
- School of Environment and Chemical Engineering, Tianjin Polytechnic University, Tianjin, China
| | - Hui-qin An
- School of Environment and Chemical Engineering, Tianjin Polytechnic University, Tianjin, China
| | - Yu Su
- School of Environment and Chemical Engineering, Tianjin Polytechnic University, Tianjin, China
| | - Zhen-Li Jin
- School of Environment and Chemical Engineering, Tianjin Polytechnic University, Tianjin, China
| | - Dong-Sheng Wei
- College of Life Sciences, Nankai University, Tianjin, China
| | - Li Chen
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Key Laboratory of Fiber Modification and Functional Fiber, Tianjin Polytechnic University, Tianjin, China
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Sciancalepore AG, Moffa M, Carluccio S, Romano L, Netti GS, Prattichizzo C, Pisignano D. Bioactive Nanofiber Matrices Functionalized with Fibronectin-Mimetic Peptides Driving the Alignment and Tubular Commitment of Adult Renal Stem Cells. MACROMOL CHEM PHYS 2015. [DOI: 10.1002/macp.201500370] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Anna G. Sciancalepore
- Istituto Nanoscienze-CNR; Euromediterranean Center for Nanomaterial Modelling and Technology (ECMT); Via Arnesano I-73100 Lecce Italy
| | - Maria Moffa
- Istituto Nanoscienze-CNR; Euromediterranean Center for Nanomaterial Modelling and Technology (ECMT); Via Arnesano I-73100 Lecce Italy
| | - Simonetta Carluccio
- Dipartimento di Scienze e Tecnologie Biologiche e Ambientali; Università del Salento; Via provinciale per Monteroni I-73100 Lecce Italy
| | - Luigi Romano
- Dipartimento di Matematica e Fisica “Ennio De Giorgi”; Università del Salentoand Istituto Nanoscienze-CNR; Euromediterranean Center for Nanomaterial Modelling and Technology (ECMT); Via Arnesano I-73100 Lecce Italy
| | - Giuseppe S. Netti
- Clinical Pathology Unit; Department of Medical and Surgical Sciences; University of Foggia; Hospital University “Ospedali Riuniti”; viale Luigi Pinto I-71122 Foggia Italy
| | - Clelia Prattichizzo
- Clinical Pathology Unit; Department of Medical and Surgical Sciences; University of Foggia; Hospital University “Ospedali Riuniti”; viale Luigi Pinto I-71122 Foggia Italy
| | - Dario Pisignano
- Dipartimento di Matematica e Fisica “Ennio De Giorgi”; Università del Salentoand Istituto Nanoscienze-CNR; Euromediterranean Center for Nanomaterial Modelling and Technology (ECMT); Via Arnesano I-73100 Lecce Italy
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36
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Silk 3D matrices incorporating human neural progenitor cells for neural tissue engineering applications. Polym J 2015. [DOI: 10.1038/pj.2015.69] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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37
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Tsimbouri PM. Adult Stem Cell Responses to Nanostimuli. J Funct Biomater 2015; 6:598-622. [PMID: 26193326 PMCID: PMC4598673 DOI: 10.3390/jfb6030598] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2015] [Revised: 06/29/2015] [Accepted: 07/08/2015] [Indexed: 12/31/2022] Open
Abstract
Adult or mesenchymal stem cells (MSCs) have been found in different tissues in the body, residing in stem cell microenvironments called "stem cell niches". They play different roles but their main activity is to maintain tissue homeostasis and repair throughout the lifetime of an organism. Their ability to differentiate into different cell types makes them an ideal tool to study tissue development and to use them in cell-based therapies. This differentiation process is subject to both internal and external forces at the nanoscale level and this response of stem cells to nanostimuli is the focus of this review.
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Affiliation(s)
- Penelope M Tsimbouri
- Centre for Cell Engineering, Institute of Molecular, Cell and Systems Biology, College of Medical, Veterinary and Life Sciences, Joseph Black Building, University of Glasgow, Glasgow G12 8QQ, UK.
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Marelli B, Ghezzi CE, James-Bhasin M, Nazhat SN. Fabrication of injectable, cellular, anisotropic collagen tissue equivalents with modular fibrillar densities. Biomaterials 2015; 37:183-93. [DOI: 10.1016/j.biomaterials.2014.10.019] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Accepted: 10/02/2014] [Indexed: 12/13/2022]
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McMurray RJ, Dalby MJ, Tsimbouri PM. Using biomaterials to study stem cell mechanotransduction, growth and differentiation. J Tissue Eng Regen Med 2014; 9:528-39. [DOI: 10.1002/term.1957] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2013] [Revised: 06/11/2014] [Accepted: 08/28/2014] [Indexed: 12/22/2022]
Affiliation(s)
- Rebecca J. McMurray
- Mrksich Research Group, Department of Biomedical Engineering; Northwestern University; Evanston IL USA
| | - Matthew J. Dalby
- Centre for Cell Engineering, Institute of Molecular, Cell and Systems Biology; University of Glasgow; UK
| | - P. Monica Tsimbouri
- Centre for Cell Engineering, Institute of Molecular, Cell and Systems Biology; University of Glasgow; UK
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40
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Wang W, Liu Q, Zhang Y, Zhao L. Involvement of ILK/ERK1/2 and ILK/p38 pathways in mediating the enhanced osteoblast differentiation by micro/nanotopography. Acta Biomater 2014; 10:3705-15. [PMID: 24769109 DOI: 10.1016/j.actbio.2014.04.019] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2014] [Revised: 03/20/2014] [Accepted: 04/16/2014] [Indexed: 12/31/2022]
Abstract
The hierarchical micro/nanotextured topography (MNT) on titanium (Ti) implant surface significantly enhances osteoblast differentiation. We have demonstrated that integrin-linked kinase (ILK) is a key underlying signal molecule and β-catenin is one of its downstream mediators in MNT-regulated osteoblast behavior. Here we propose that mitogen-activated protein kinases (MAPKs), including extracellular signal-regulated kinase 1/2 (ERK1/2), p38 and c-Jun NH2-terminal kinase (JNK), are other mediators downstream of ILK, and this study aims to confirm this. Firstly, the levels of ILK and MAPK activity in MG63 cells on MNT are examined by Western blot analysis. The ILK, ERK1/2 and p38 signals are significantly up-regulated by MNT, whereas the JNK activity is undetectable by Western blot. The MG63 cell morphology, proliferation and differentiation are studied in the absence and presence of the MAPK subgroup inhibitors to confirm their roles in cell functions on the Ti surface. The MAPK subgroup inhibitors obviously change the cell shape and depress cell proliferation. Blocking the ERK1/2 or p38 signaling, but not the JNK signaling, significantly down-regulates the cell osteogenesis-related gene expression, ALP production, collagen secretion and matrix mineralization. Afterwards, the ILK expression is down-regulated using ILK-specific siRNA (ILKsi) and then the MAPK activity is determined. ILKsi significantly attenuates the phosphorylated ERK1/2 and p38 levels on MNT, explicitly demonstrating that the ERK1/2 and p38 signalings are downstream effectors of ILK. In conclusion, these data demonstrate that both ILK/ERK1/2 and ILK/p38 pathways are involved in the mechanisms mediating the enhanced osteoblast differentiation by biomaterial surface topography, hopefully directing the biomaterial modification and biofunctionalization.
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41
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Baier C, Franco D, Gallegos C, Mongiat L, Dionisio L, Bouzat C, Caviedes P, Barrantes F. Corticosterone affects the differentiation of a neuronal cerebral cortex-derived cell line through modulation of the nicotinic acetylcholine receptor. Neuroscience 2014; 274:369-82. [DOI: 10.1016/j.neuroscience.2014.05.049] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2013] [Revised: 04/29/2014] [Accepted: 05/24/2014] [Indexed: 11/27/2022]
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Fujisawa C, Castellot JJ. Matrix production and remodeling as therapeutic targets for uterine leiomyoma. J Cell Commun Signal 2014; 8:179-94. [PMID: 25012731 DOI: 10.1007/s12079-014-0234-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Accepted: 05/22/2014] [Indexed: 01/06/2023] Open
Abstract
Uterine leiomyoma, commonly known as fibroids, is a benign neoplasm of smooth muscle in women. The incidence of clinically symptomatic fibroids in reproductive-age women is approximately 20 %, with nearly 80 % of black women suffering from this condition. Symptoms include severe pain and hemorrhage; fibroids are also a major cause of infertility or sub-fertility in women. Uterine leiomyoma consist of hyperplastic smooth muscle cells and an excess deposition of extracellular matrix, specifically collagen, fibronectin, and sulfated proteoglycans. Extracellular matrix components interact and signal through integrin-β1 on the surface of uterine leiomyoma smooth muscle cells, provide growth factor storage, and act as co-receptors for growth factor-receptor binding. ECM and growth factor signaling through integrin-β1 and growth factor receptors significantly increases cell proliferation and ECM deposition in uterine leiomyoma. Growth factors TGF-β, IGF, PDGF, FGF and EGF are all shown to promote uterine leiomyoma progression and signal through multiple pathways to increase the expression of genes encoding matrix or matrix-modifying proteins. Decreasing integrin expression, reducing growth factor action and inhibiting ECM action on uterine leiomyoma smooth muscle cells are important opportunities to treat uterine leiomyoma without use of the current surgical procedures. Both natural compounds and chemicals are shown to decrease fibrosis and uterine leiomyoma progression, but further analysis is needed to make inroads in treating this common women's health issue.
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Affiliation(s)
- Caitlin Fujisawa
- Public Heath and Professional Degrees Program, Tufts University School of Medicine, Boston, MA, 02111, USA
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Yin Y, Huang P, Han Z, Wei G, Zhou C, Wen J, Su B, Wang X, Wang Y. Collagen nanofibers facilitated presynaptic maturation in differentiated neurons from spinal-cord-derived neural stem cells through MAPK/ERK1/2-Synapsin I signaling pathway. Biomacromolecules 2014; 15:2449-60. [PMID: 24955924 DOI: 10.1021/bm500321h] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Neural stem cells (NSCs) are deemed to be a potential cell therapy for brain and spinal cord reconstruction and regeneration following injury. In this study, we investigated the role of nanofibrous scaffolds on NSCs-derived neurons in the formation of neural networks. Miniature excitatory postsynaptic currents (mEPSCs) were recorded using the whole-cell patch clamp recording method after the spinal cord-derived NSCs were differentiated into neurons and cultured in vitro for 10-14 days. It was observed that the frequency of mEPSCs in the differentiated neurons cultured on both randomly oriented and aligned collagen nanofibrous scaffolds was higher than that on the collagen-coated control and can be inhibited by an ERK inhibitor (PD98059), indicating that the collagen nanofibers affected the maturation of the synapses from presynaptic sites via the MAPK/ERK1/2 pathway. In addition, both of the collagen nanofibers increased the phosphorylation of Synapsin I and facilitated the interaction of p-ERK1/2 and p-Synapsin I. All these results suggested that the collagen nanofibrous scaffolds contributed to the presynaptic maturation via the ERK1/2-Synapsin I signaling pathway.
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Affiliation(s)
- Yanling Yin
- Department of Neurobiology and Beijing Institute for Brain Disorders, School of Basic Medical Sciences, Capital Medical University , Beijing 100069, PR China
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Abstract
Injury to the CNS typically results in significant morbidity and endogenous repair mechanisms are limited in their ability to restore fully functional CNS tissue. Biologic scaffolds composed of individual purified components have been shown to facilitate functional tissue reconstruction following CNS injury. Extracellular matrix scaffolds derived from mammalian tissues retain a number of bioactive molecules and their ability for CNS repair has recently been recognized. In addition, novel biomaterials for dural mater repairs are of clinical interest as the dura provides barrier function and maintains homeostasis to CNS. The present article describes the application of regenerative medicine principles to the CNS tissues and dural mater repair. While many approaches have been exploring the use of cells and/or therapeutic molecules, the strategies described herein focus upon the use of extracellular matrix scaffolds derived from mammalian tissues that are free of cells and exogenous factors.
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Affiliation(s)
- Fanwei Meng
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15203, USA
- Department of Surgery, University of Pittsburgh, Pittsburgh, PA 15203, USA
| | - Michel Modo
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15203, USA
- Department of Radiology, University of Pittsburgh, Pittsburgh, PA 15203, USA
| | - Stephen F Badylak
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15203, USA
- Department of Surgery, University of Pittsburgh, Pittsburgh, PA 15203, USA
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15203, USA
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Motegi H, Kamoshima Y, Terasaka S, Kobayashi H, Houkin K. Type 1 collagen as a potential niche component for CD133-positive glioblastoma cells. Neuropathology 2014; 34:378-85. [PMID: 24673436 DOI: 10.1111/neup.12117] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Accepted: 02/19/2014] [Indexed: 11/30/2022]
Abstract
Cancer stem cells are thought to be closely related to tumor progression and recurrence, making them attractive therapeutic targets. Stem cells of various tissues exist within niches maintaining their stemness. Glioblastoma stem cells (GSCs) are located at tumor capillaries and the perivascular niche, which are considered to have an important role in maintaining GSCs. There were some extracellular matrices (ECM) on the perivascular connective tissue, including type 1 collagen. We here evaluated whether type 1 collagen has a potential niche for GSCs. Imunohistochemical staining of type 1 collagen and CD133, one of the GSCs markers, on glioblastoma (GBM) tissues showed CD133-positive cells were located in immediate proximity to type 1 collagen around tumor vessels. We cultured human GBM cell lines, U87MG and GBM cells obtained from fresh surgical tissues, T472 and T555, with serum-containing medium (SCM) or serum-free medium with some growth factors (SFM) and in non-coated (Non-coat) or type 1 collagen-coated plates (Col). The RNA expression levels of CD133 and Nestin as stem cell markers in each condition were examined. The Col condition not only with SFM but SCM made GBM cells more enhanced in RNA expression of CD133, compared to Non-coat/SCM. Semi-quantitative measurement of CD133-positive cells by immunocytochemistry showed a statistically significant increase of CD133-positive cells in Col/SFM. In addition, T472 cell line cultured in the Col/SFM had capabilities of sphere formation and tumorigenesis. Type 1 collagen was found in the perivascular area and showed a possibility to maintain GSCs. These findings suggest that type 1 collagen could be one important niche component for CD133-positive GSCs and maintain GSCs in adherent culture.
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Affiliation(s)
- Hiroaki Motegi
- Department of Neurosurgery, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
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46
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Sivolella S, Brunello G, Ferrarese N, Della Puppa A, D'Avella D, Bressan E, Zavan B. Nanostructured guidance for peripheral nerve injuries: a review with a perspective in the oral and maxillofacial area. Int J Mol Sci 2014; 15:3088-117. [PMID: 24562333 PMCID: PMC3958900 DOI: 10.3390/ijms15023088] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2014] [Revised: 02/03/2014] [Accepted: 02/10/2014] [Indexed: 12/12/2022] Open
Abstract
Injury to peripheral nerves can occur as a result of various surgical procedures, including oral and maxillofacial surgery. In the case of nerve transaction, the gold standard treatment is the end-to-end reconnection of the two nerve stumps. When it cannot be performed, the actual strategies consist of the positioning of a nerve graft between the two stumps. Guided nerve regeneration using nano-structured scaffolds is a promising strategy to promote axon regeneration. Biodegradable electrospun conduits composed of aligned nanofibers is a new class of devices used to improve neurite extension and axon outgrowth. Self assembled peptide nanofibrous scaffolds (SAPNSs) demonstrated promising results in animal models for central nervous system injuries, and, more recently, for peripheral nerve injury. Aims of this work are (1) to review electrospun and self-assembled nanofibrous scaffolds use in vitro and in vivo for peripheral nerve regeneration; and (2) its application in peripheral nerve injuries treatment. The review focused on nanofibrous scaffolds with a diameter of less than approximately 250 nm. The conjugation in a nano scale of a natural bioactive factor with a resorbable synthetic or natural material may represent the best compromise providing both biological and mechanical cues for guided nerve regeneration. Injured peripheral nerves, such as trigeminal and facial, may benefit from these treatments.
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Affiliation(s)
- Stefano Sivolella
- Department of Neurosciences, Institute of Clinical Dentistry,University of Padova, Via Venezia, 90, 35129 Padova, Italy.
| | - Giulia Brunello
- Department of Neurosciences, Institute of Clinical Dentistry,University of Padova, Via Venezia, 90, 35129 Padova, Italy.
| | - Nadia Ferrarese
- Department of Neurosciences, Institute of Clinical Dentistry,University of Padova, Via Venezia, 90, 35129 Padova, Italy.
| | - Alessandro Della Puppa
- Department of Neurosciences, University of Padua, via Giustiniani, 5, 35128 Padua, Italy.
| | - Domenico D'Avella
- Department of Neurosciences, University of Padua, via Giustiniani, 5, 35128 Padua, Italy.
| | - Eriberto Bressan
- Department of Neurosciences, Institute of Clinical Dentistry,University of Padova, Via Venezia, 90, 35129 Padova, Italy.
| | - Barbara Zavan
- Department of Biomedical Sciences, University of Padova, Via G. Colombo 3, 35100 Padova, Italy.
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Moreno-Layseca P, Streuli CH. Signalling pathways linking integrins with cell cycle progression. Matrix Biol 2014; 34:144-53. [DOI: 10.1016/j.matbio.2013.10.011] [Citation(s) in RCA: 158] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2013] [Revised: 10/22/2013] [Accepted: 10/22/2013] [Indexed: 12/30/2022]
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Bergström T, Holmqvist K, Tararuk T, Johansson S, Forsberg-Nilsson K. Developmentally regulated collagen/integrin interactions confer adhesive properties to early postnatal neural stem cells. Biochim Biophys Acta Gen Subj 2014; 1840:2526-32. [PMID: 24462579 DOI: 10.1016/j.bbagen.2014.01.021] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Revised: 01/14/2014] [Accepted: 01/15/2014] [Indexed: 11/30/2022]
Abstract
BACKGROUND It is becoming increasingly apparent that the extracellular matrix acts as an important regulator of the neural stem niche. Previously we found that neural stem and progenitor cells (NSPCs) derived from the early postnatal subventricular zone of mice adhere to a collagen/hyaluronan hydrogel, whereas NSPCs from the adult and embryonic brain do not. METHODS To examine the specific adhesive properties of young stem cells in more detail, NSPCs isolated from embryonic, postnatal day 6 (P6), and adult mouse brains were cultured on collagen I. RESULTS Early postnatal NSPCs formed paxillin-positive focal adhesions on collagen I, and these adhesions could be prevented by an antibody that blocked integrin β1. Furthermore, we found the corresponding integrin alpha subunits α2 and α11 levels to be highest at the postnatal stage. Gene ontology analysis of differentially expressed genes showed higher expression of transcripts involved in vasculature development and morphogenesis in P6 stem cells, compared to adult. CONCLUSIONS The ability to interact with the extracellular matrix differs between postnatal and adult NSPCs. GENERAL SIGNIFICANCE Our observations that the specific adhesive properties of early postnatal NSPCs, which are lost in the adult brain, can be ascribed to the integrin subunits expressed by the former furthering our understanding of the developing neurogenic niche. This article is part of a Special Issue entitled Matrix-mediated cell behaviour and properties.
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Affiliation(s)
- Tobias Bergström
- Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Rudbeck Laboratory, Uppsala University, SE-75185 Uppsala Sweden
| | - Karin Holmqvist
- Merck Sharp & Dohme (Sweden) AB, Rotebergsvägen 3, Box 7125, SE-192 07 Sollentuna, Sweden
| | - Tatsiana Tararuk
- Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Rudbeck Laboratory, Uppsala University, SE-75185 Uppsala Sweden
| | - Staffan Johansson
- Department of Medical Biochemistry and Microbiology, Uppsala University, SE-75123 Uppsala, Sweden
| | - Karin Forsberg-Nilsson
- Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Rudbeck Laboratory, Uppsala University, SE-75185 Uppsala Sweden
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Goonoo N, Bhaw-Luximon A, Jhurry D. In vitro and in vivo cytocompatibility of electrospun nanofiber scaffolds for tissue engineering applications. RSC Adv 2014. [DOI: 10.1039/c4ra05218h] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An electrospun polymeric-based nanofibrous scaffold mimicking the extracellular matrix and serving as a temporary support for cell growth, adhesion, migration and proliferation.
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Affiliation(s)
- N. Goonoo
- ANDI Centre of Excellence for Biomedical and Biomaterials Research
- University of Mauritius
- Réduit, Mauritius
| | - A. Bhaw-Luximon
- ANDI Centre of Excellence for Biomedical and Biomaterials Research
- University of Mauritius
- Réduit, Mauritius
| | - D. Jhurry
- ANDI Centre of Excellence for Biomedical and Biomaterials Research
- University of Mauritius
- Réduit, Mauritius
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50
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Najafi MF, Zahri S, Vahedi F, Toosi LE, Ariaee N. Which form of collagen is suitable for nerve cell culture? Neural Regen Res 2013; 8:2165-70. [PMID: 25206525 PMCID: PMC4146121 DOI: 10.3969/j.issn.1673-5374.2013.23.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2013] [Accepted: 06/09/2013] [Indexed: 12/03/2022] Open
Abstract
In this study, we investigated the effects of hydrolyzed and non-hydrolyzed collagen and two-dimensional and three-dimensional collagen matrices on cell survival, attachment and neurite outgrowth of primary cultured nerve cells using 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide (MTT) colorimetric assay and inverted microscopy. Hydrolyzed collagen facilitated nerve cell survival and neurite outgrowth, but it had no obvious influences on cell attachment. In contrast, non-hydrolyzed two-dimensional collagen matrix had no obvious effects on neurite outgrowth. These findings suggest that hydrolyzed collagen is an ideal nerve cell culture media.
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Affiliation(s)
| | - Saber Zahri
- Departamnt of Biology, University of Mohaghegh Ardebili, Ardebil, Iran
| | - Fatemeh Vahedi
- Razi Vaccine and Serum Research Institute, Mashhad, Iran
| | - Leila Esmaililian Toosi
- Inflammation and Inflammatory Diseases Research Center, Mashhad University of Medical Science, Mashhad, Iran
| | - Nazila Ariaee
- Departamnt of Biology, University of Mohaghegh Ardebili, Ardebil, Iran ; Inflammation and Inflammatory Diseases Research Center, Mashhad University of Medical Science, Mashhad, Iran
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