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Guo L, Ji C, Wang H, Ma T, Qi J. Design and construction of high strength double network hydrogel with flow-induced orientation. J Colloid Interface Sci 2024; 672:497-511. [PMID: 38852352 DOI: 10.1016/j.jcis.2024.06.046] [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: 03/26/2024] [Revised: 06/04/2024] [Accepted: 06/05/2024] [Indexed: 06/11/2024]
Abstract
The design and construction of high strength hydrogels is a widely discussed topic in hydrogel research. In this study, we combined three toughening strategies, including dual network, oriented structure construction and nanophase doping, to develop an alginate/polyacrylamide (PAM)/modified titanium dioxide fiber (TiO2 NF@PAM) dual network composite hydrogel prepared via syringe. The effects of different preparation methods, AM/Alginate ratios, inorganic doping phases and TiO2 NF@PAM/AM ratios on the mechanical properties of composite hydrogels were investigated. The study found that the alginate hydrogel prepared by syringe exhibited superior axial orientation and achieved a tensile strength of (1091 ± 46) kPa. And the composite hydrogel doped with 0.2 wt% TiO2 NF@PAM had a tensile strength of (1006 ± 64) kPa, which was higher than that of the composite hydrogel doped with 0.2 wt% TiO2 nanoparticles (976 ± 66) kPa. The highest tensile strength (1120 ± 67) kPa and elongation at break (182 ± 8) % were achieved when the ratio of TiO2 NF@PAM/AM was 0.6 wt%. The force applied to the gel solution in the syringe affects the orientation of the polymer chains and TiO2 NF@PAM within the gel, which subsequently impacts the mechanical properties of the hydrogel. Therefore, we further investigated the mechanical properties of composite hydrogels under varying propulsion speeds, syringe diameters, and syringe lengths. It was observed that the gel solution's shear strength increased as the syringe diameter decreased. The resulting composite hydrogels were better oriented and had improved mechanical properties. The composite hydrogels' tensile strength peaked at (1117 ± 47) kPa when the syringe advance rate was between 1-7 mL/min. The mechanical properties of the hydrogels were optimal when the syringe length was 30 mm, with a maximum tensile strength of (1131 ± 67) kPa and a tensile ratio of (166 ± 5) %. This study demonstrates the viability of integrating three distinct strengthening methodologies to generate hydrogels of considerable strength. Furthermore, the Alginate/PAM/TiO2 NF@PAM composite hydrogels possess remarkable potential as adaptable, wearable sensors due to their exemplary mechanical properties, knittability, and conductivity.
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Affiliation(s)
- Li Guo
- Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province, Northeastern University at Qinhuangdao, Qinhuangdao 066004, PR China
| | - Cheng Ji
- Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province, Northeastern University at Qinhuangdao, Qinhuangdao 066004, PR China
| | - Haiwang Wang
- Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province, Northeastern University at Qinhuangdao, Qinhuangdao 066004, PR China.
| | - Tianxiao Ma
- Department of Respiratory and Critical Care Medicine, Chifeng Municipal Hospital, Chifeng 024000, PR China.
| | - Jian Qi
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China; School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, PR China.
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2
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Liu Y, Gao H, Shang Y, Sun S, Guan W, Zheng T, Wu L, Cong M, Zhang L, Li G. IKVAV functionalized oriented PCL/Fe 3O 4 scaffolds for magnetically modulating DRG growth behavior. Colloids Surf B Biointerfaces 2024; 239:113967. [PMID: 38761494 DOI: 10.1016/j.colsurfb.2024.113967] [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: 03/21/2024] [Revised: 05/07/2024] [Accepted: 05/11/2024] [Indexed: 05/20/2024]
Abstract
The re-bridging of the deficient nerve is the main problem to be solved after the functional impairment of the peripheral nerve. In this study, a directionally aligned polycaprolactone/triiron tetraoxide (PCL/Fe3O4) fiber scaffolds were firstly prepared by electrospinning technique, and further then grafted with IKVAV peptide for regulating DRG growth and axon extension in peripheral nerve regeneration. The results showed that oriented aligned magnetic PCL/Fe3O4 composite scaffolds were successfully prepared by electrospinning technique and possessed good mechanical properties and magnetic responsiveness. The PCL/Fe3O4 scaffolds containing different Fe3O4 concentrations were free of cytotoxicity, indicating the good biocompatibility and low cytotoxicity of the scaffolds. The IKVAV-functionalized PCL/Fe3O4 scaffolds were able to guide and promote the directional extension of axons, the application of external magnetic field and the grafting of IKVAV peptides significantly further promoted the growth of DRGs and axons. The ELISA test results showed that the AP-10 F group scaffolds promoted the secretion of nerve growth factor (NGF) from DRG under a static magnetic field (SMF), thus promoting the growth and extension of axons. Importantly, the IKVAV-functionalized PCL/Fe3O4 scaffolds could significantly up-regulate the expression of Cntn2, PCNA, Sox10 and Isca1 genes related to adhesion, proliferation and magnetic receptor function under the stimulation of SMF. Therefore, IKVAV-functionalized PCL/Fe3O4 composite oriented scaffolds have potential applications in neural tissue engineering.
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Affiliation(s)
- Yaqiong Liu
- Key Laboratory of Neuroregeneration, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226001, PR China; Guangdong Provincial Key Laboratory of Advanced Biomaterials, Southern University of Science and Technology, Shenzhen 518055, PR China
| | - Hongxia Gao
- Key Laboratory of Neuroregeneration, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226001, PR China
| | - Yuqing Shang
- Key Laboratory of Neuroregeneration, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226001, PR China
| | - Shaolan Sun
- Key Laboratory of Neuroregeneration, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226001, PR China
| | - Wenchao Guan
- Key Laboratory of Neuroregeneration, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226001, PR China
| | - Tiantian Zheng
- Key Laboratory of Neuroregeneration, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226001, PR China
| | - Linliang Wu
- Key Laboratory of Neuroregeneration, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226001, PR China; The People's Hospital of Rugao, Affiliated Hospital of Nantong University, Nantong 226599, PR China
| | - Meng Cong
- Key Laboratory of Neuroregeneration, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226001, PR China
| | - Luzhong Zhang
- Key Laboratory of Neuroregeneration, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226001, PR China
| | - Guicai Li
- Key Laboratory of Neuroregeneration, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226001, PR China; Guangdong Provincial Key Laboratory of Advanced Biomaterials, Southern University of Science and Technology, Shenzhen 518055, PR China.
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3
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Kollampally SCR, Zhang X, Moskwa N, Nelson DA, Sharfstein ST, Larsen M, Xie Y. Evaluation of Alginate Hydrogel Microstrands for Stromal Cell Encapsulation and Maintenance. Bioengineering (Basel) 2024; 11:375. [PMID: 38671796 PMCID: PMC11048715 DOI: 10.3390/bioengineering11040375] [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: 03/14/2024] [Revised: 04/09/2024] [Accepted: 04/11/2024] [Indexed: 04/28/2024] Open
Abstract
Mesenchymal stromal cells (MSCs) have displayed potential in regenerating organ function due to their anti-fibrotic, anti-inflammatory, and regenerative properties. However, there is a need for delivery systems to enhance MSC retention while maintaining their anti-fibrotic characteristics. This study investigates the feasibility of using alginate hydrogel microstrands as a cell delivery vehicle to maintain MSC viability and phenotype. To accommodate cell implantation needs, we invented a Syringe-in-Syringe approach to reproducibly fabricate microstrands in small numbers with a diameter of around 200 µm and a porous structure, which would allow for transporting nutrients to cells by diffusion. Using murine NIH 3T3 fibroblasts and primary embryonic 16 (E16) salivary mesenchyme cells as primary stromal cell models, we assessed cell viability, growth, and expression of mesenchymal and fibrotic markers in microstrands. Cell viability remained higher than 90% for both cell types. To determine cell number within the microstrands prior to in vivo implantation, we have further optimized the alamarBlue assay to measure viable cell growth in microstrands. We have shown the effect of initial cell seeding density and culture period on cell viability and growth to accommodate future stromal cell delivery and implantation. Additionally, we confirmed homeostatic phenotype maintenance for E16 mesenchyme cells in microstrands.
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Affiliation(s)
- Sujith Chander Reddy Kollampally
- Department of Nanoscale Science and Engineering, College of Nanotechnology, Science, and Engineering, University at Albany, State University of New York, 257 Fuller Road, Albany, NY 12203, USA; (S.C.R.K.); (X.Z.); (S.T.S.)
| | - Xulang Zhang
- Department of Nanoscale Science and Engineering, College of Nanotechnology, Science, and Engineering, University at Albany, State University of New York, 257 Fuller Road, Albany, NY 12203, USA; (S.C.R.K.); (X.Z.); (S.T.S.)
| | - Nicholas Moskwa
- Department of Biological Sciences and The RNA Institute, University at Albany, State University of New York, 1400 Washington Ave., Albany, NY 12222, USA; (N.M.); (D.A.N.); (M.L.)
- The Jackson Laboratory of Genomic Medicine, 10 Discovery Drive, Farmington, CT 06032, USA
| | - Deirdre A. Nelson
- Department of Biological Sciences and The RNA Institute, University at Albany, State University of New York, 1400 Washington Ave., Albany, NY 12222, USA; (N.M.); (D.A.N.); (M.L.)
| | - Susan T. Sharfstein
- Department of Nanoscale Science and Engineering, College of Nanotechnology, Science, and Engineering, University at Albany, State University of New York, 257 Fuller Road, Albany, NY 12203, USA; (S.C.R.K.); (X.Z.); (S.T.S.)
| | - Melinda Larsen
- Department of Biological Sciences and The RNA Institute, University at Albany, State University of New York, 1400 Washington Ave., Albany, NY 12222, USA; (N.M.); (D.A.N.); (M.L.)
| | - Yubing Xie
- Department of Nanoscale Science and Engineering, College of Nanotechnology, Science, and Engineering, University at Albany, State University of New York, 257 Fuller Road, Albany, NY 12203, USA; (S.C.R.K.); (X.Z.); (S.T.S.)
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Qin C, Qi Z, Pan S, Xia P, Kong W, Sun B, Du H, Zhang R, Zhu L, Zhou D, Yang X. Advances in Conductive Hydrogel for Spinal Cord Injury Repair and Regeneration. Int J Nanomedicine 2023; 18:7305-7333. [PMID: 38084124 PMCID: PMC10710813 DOI: 10.2147/ijn.s436111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 11/08/2023] [Indexed: 12/18/2023] Open
Abstract
Spinal cord injury (SCI) treatment represents a major challenge in clinical practice. In recent years, the rapid development of neural tissue engineering technology has provided a new therapeutic approach for spinal cord injury repair. Implanting functionalized electroconductive hydrogels (ECH) in the injury area has been shown to promote axonal regeneration and facilitate the generation of neuronal circuits by reshaping the microenvironment of SCI. ECH not only facilitate intercellular electrical signaling but, when combined with electrical stimulation, enable the transmission of electrical signals to electroactive tissue and activate bioelectric signaling pathways, thereby promoting neural tissue repair. Therefore, the implantation of ECH into damaged tissues can effectively restore physiological functions related to electrical conduction. This article focuses on the dynamic pathophysiological changes in the SCI microenvironment and discusses the mechanisms of electrical stimulation/signal in the process of SCI repair. By examining electrical activity during nerve repair, we provide insights into the mechanisms behind electrical stimulation and signaling during SCI repair. We classify conductive biomaterials, and offer an overview of the current applications and research progress of conductive hydrogels in spinal cord repair and regeneration, aiming to provide a reference for future explorations and developments in spinal cord regeneration strategies.
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Affiliation(s)
- Cheng Qin
- Department of Orthopedic Surgery, the Second Hospital of Jilin University, Changchun, 130041, People’s Republic of China
| | - Zhiping Qi
- Department of Orthopedic Surgery, the Second Hospital of Jilin University, Changchun, 130041, People’s Republic of China
| | - Su Pan
- Department of Orthopedic Surgery, the Second Hospital of Jilin University, Changchun, 130041, People’s Republic of China
| | - Peng Xia
- Department of Orthopedic Surgery, the Second Hospital of Jilin University, Changchun, 130041, People’s Republic of China
| | - Weijian Kong
- Department of Orthopedic Surgery, the Second Hospital of Jilin University, Changchun, 130041, People’s Republic of China
| | - Bin Sun
- Department of Orthopedic Surgery, the Second Hospital of Jilin University, Changchun, 130041, People’s Republic of China
| | - Haorui Du
- Department of Orthopedic Surgery, the Second Hospital of Jilin University, Changchun, 130041, People’s Republic of China
| | - Renfeng Zhang
- Department of Orthopedic Surgery, the Second Hospital of Jilin University, Changchun, 130041, People’s Republic of China
| | - Longchuan Zhu
- Department of Orthopedic Surgery, the Second Hospital of Jilin University, Changchun, 130041, People’s Republic of China
| | - Dinghai Zhou
- Department of Orthopedic Surgery, the Second Hospital of Jilin University, Changchun, 130041, People’s Republic of China
| | - Xiaoyu Yang
- Department of Orthopedic Surgery, the Second Hospital of Jilin University, Changchun, 130041, People’s Republic of China
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Hojabri M, Tayebi T, Kasravi M, Aghdaee A, Ahmadi A, Mazloomnejad R, Tarasi R, Shaabani A, Bahrami S, Niknejad H. Wet-spinnability and crosslinked Fiber properties of alginate/hydroxyethyl cellulose with varied proportion for potential use in tendon tissue engineering. Int J Biol Macromol 2023; 240:124492. [PMID: 37072060 DOI: 10.1016/j.ijbiomac.2023.124492] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 04/12/2023] [Accepted: 04/13/2023] [Indexed: 04/20/2023]
Abstract
Researchers have examined different bio-inspired materials in tissue engineering and regenerative medicine to fabricate scaffolds to address tendon regeneration requirements. We developed fibers based on alginate (Alg) and hydroxyethyl cellulose (HEC) by wet-spinning technique to mimic the fibrous sheath of ECM. Various proportions (25:75, 50:50, 75:25) of 1 % Alg and 4 % HEC were blended to this aim. Two steps of crosslinking with different concentrations of CaCl2 (2.5 and 5 %) and glutaraldehyde (2.5 %) were used to improve physical and mechanical properties. The fibers were characterized by FTIR, SEM, swelling, degradation, and tensile tests. The in vitro proliferation, viability, and migration of tenocytes on the fibers were also evaluated. Moreover, the biocompatibility of implanted fibers was investigated in an animal model. The results showed ionic and covalent molecular interactions between the components. In addition, by properly maintaining surface morphology, fiber alignment, and swelling, lower concentrations of HEC in the blending provided good degradability and mechanical features. The mechanical strength of fibers was in the range of collagenous fibers. Increasing the crosslinking led to significantly different mechanical behaviors in terms of tensile strength and elongation at break. Because of good in vitro and in vivo biocompatibility, tenocyte proliferation, and migration, the biological macromolecular fibers could serve as desirable tendon substitutes. This study provides more practical insight into tendon tissue engineering in translational medicine.
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Affiliation(s)
- Mahsa Hojabri
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Tahereh Tayebi
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammadreza Kasravi
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Amirhossein Aghdaee
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Armin Ahmadi
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Radman Mazloomnejad
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Roghayeh Tarasi
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Alireza Shaabani
- Department of Polymer and Materials Chemistry, Faculty of Chemistry and Petroleum Science, Shahid Beheshti University, Tehran, Iran
| | - Soheyl Bahrami
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology in AUVA Research Center, Vienna, Austria
| | - Hassan Niknejad
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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6
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Ning C, Li P, Gao C, Fu L, Liao Z, Tian G, Yin H, Li M, Sui X, Yuan Z, Liu S, Guo Q. Recent advances in tendon tissue engineering strategy. Front Bioeng Biotechnol 2023; 11:1115312. [PMID: 36890920 PMCID: PMC9986339 DOI: 10.3389/fbioe.2023.1115312] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Accepted: 02/06/2023] [Indexed: 02/22/2023] Open
Abstract
Tendon injuries often result in significant pain and disability and impose severe clinical and financial burdens on our society. Despite considerable achievements in the field of regenerative medicine in the past several decades, effective treatments remain a challenge due to the limited natural healing capacity of tendons caused by poor cell density and vascularization. The development of tissue engineering has provided more promising results in regenerating tendon-like tissues with compositional, structural and functional characteristics comparable to those of native tendon tissues. Tissue engineering is the discipline of regenerative medicine that aims to restore the physiological functions of tissues by using a combination of cells and materials, as well as suitable biochemical and physicochemical factors. In this review, following a discussion of tendon structure, injury and healing, we aim to elucidate the current strategies (biomaterials, scaffold fabrication techniques, cells, biological adjuncts, mechanical loading and bioreactors, and the role of macrophage polarization in tendon regeneration), challenges and future directions in the field of tendon tissue engineering.
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Affiliation(s)
- Chao Ning
- Chinese PLA Medical School, Beijing, China.,Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma and War Injuries PLA, Institute of Orthopedics, Chinese PLA General Hospital, Beijing, China
| | - Pinxue Li
- Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma and War Injuries PLA, Institute of Orthopedics, Chinese PLA General Hospital, Beijing, China
| | - Cangjian Gao
- Chinese PLA Medical School, Beijing, China.,Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma and War Injuries PLA, Institute of Orthopedics, Chinese PLA General Hospital, Beijing, China
| | - Liwei Fu
- Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma and War Injuries PLA, Institute of Orthopedics, Chinese PLA General Hospital, Beijing, China
| | - Zhiyao Liao
- Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma and War Injuries PLA, Institute of Orthopedics, Chinese PLA General Hospital, Beijing, China
| | - Guangzhao Tian
- Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma and War Injuries PLA, Institute of Orthopedics, Chinese PLA General Hospital, Beijing, China
| | - Han Yin
- Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma and War Injuries PLA, Institute of Orthopedics, Chinese PLA General Hospital, Beijing, China
| | - Muzhe Li
- Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma and War Injuries PLA, Institute of Orthopedics, Chinese PLA General Hospital, Beijing, China
| | - Xiang Sui
- Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma and War Injuries PLA, Institute of Orthopedics, Chinese PLA General Hospital, Beijing, China
| | - Zhiguo Yuan
- Department of Bone and Joint Surgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Shuyun Liu
- Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma and War Injuries PLA, Institute of Orthopedics, Chinese PLA General Hospital, Beijing, China
| | - Quanyi Guo
- Chinese PLA Medical School, Beijing, China.,Beijing Key Lab of Regenerative Medicine in Orthopedics, Key Laboratory of Musculoskeletal Trauma and War Injuries PLA, Institute of Orthopedics, Chinese PLA General Hospital, Beijing, China
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Xie Y, Kollampally SCR, Jorgensen M, Zhang X. Alginate microfibers as therapeutic delivery scaffolds and tissue mimics. Exp Biol Med (Maywood) 2022; 247:2103-2118. [PMID: 36000165 PMCID: PMC9837301 DOI: 10.1177/15353702221112905] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Alginate, a naturally occurring polysaccharide, has been widely used in cell encapsulation, 3D culture, cell therapy, tissue engineering, and regenerative medicine. Alginate's frequent use comes from its biocompatibility and ability to easily form hydrogel in a variety of forms (e.g. microcapsules, microfibers, and porous scaffolds), which can provide immunoprotection for cell therapy and mimic the extracellular matrix for tissue engineering. During the past 15 years, alginate hydrogel microfibers have attracted more and more attention due to its continuous thin tubular structures (diameter or shell thickness ⩽ 200 µm), high-density cell growth, high handleability and retrievability, and scalability. This review article provides a concise overview of alginate and its resultant hydrogel microfibers for the purpose of promoting multidisciplinary, collaborative, and convergent research in the field. It starts with a historical review of alginate as biomaterials and provides basics about alginate structure, properties, and mechanisms of hydrogel formation, followed by current challenges in effective cell delivery and functional tissue engineering. In particular, this work discusses how alginate microfiber technology could provide solutions to unmet needs with a focus on the current state of the art of alginate microfiber technology and its applications in 3D cell culture, cell delivery, and tissue engineering. At last, we discuss future directions in the perspective of alginate-based advanced technology development in biology and medicine.
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Affiliation(s)
- Yubing Xie
- College of Nanoscale Science and Engineering, SUNY Polytechnic Institute, Albany, NY 12203, USA
| | | | - Matthew Jorgensen
- College of Nanoscale Science and Engineering, SUNY Polytechnic Institute, Albany, NY 12203, USA
| | - Xulang Zhang
- College of Nanoscale Science and Engineering, SUNY Polytechnic Institute, Albany, NY 12203, USA
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Rohani Shirvan A, Nouri A, Sutti A. A perspective on the wet spinning process and its advancements in biomedical sciences. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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9
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Zhang Y, Chen H, Li J. Recent advances on gelatin methacrylate hydrogels with controlled microstructures for tissue engineering. Int J Biol Macromol 2022; 221:91-107. [DOI: 10.1016/j.ijbiomac.2022.08.171] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 08/25/2022] [Accepted: 08/25/2022] [Indexed: 12/12/2022]
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10
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Sirkkunan D, Pingguan-Murphy B, Muhamad F. Directing Axonal Growth: A Review on the Fabrication of Fibrous Scaffolds That Promotes the Orientation of Axons. Gels 2021; 8:gels8010025. [PMID: 35049560 PMCID: PMC8775123 DOI: 10.3390/gels8010025] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 12/19/2021] [Accepted: 12/23/2021] [Indexed: 12/17/2022] Open
Abstract
Tissues are commonly defined as groups of cells that have similar structure and uniformly perform a specialized function. A lesser-known fact is that the placement of these cells within these tissues plays an important role in executing its functions, especially for neuronal cells. Hence, the design of a functional neural scaffold has to mirror these cell organizations, which are brought about by the configuration of natural extracellular matrix (ECM) structural proteins. In this review, we will briefly discuss the various characteristics considered when making neural scaffolds. We will then focus on the cellular orientation and axonal alignment of neural cells within their ECM and elaborate on the mechanisms involved in this process. A better understanding of these mechanisms could shed more light onto the rationale of fabricating the scaffolds for this specific functionality. Finally, we will discuss the scaffolds used in neural tissue engineering (NTE) and the methods used to fabricate these well-defined constructs.
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Elkhoury K, Morsink M, Sanchez-Gonzalez L, Kahn C, Tamayol A, Arab-Tehrany E. Biofabrication of natural hydrogels for cardiac, neural, and bone Tissue engineering Applications. Bioact Mater 2021; 6:3904-3923. [PMID: 33997485 PMCID: PMC8080408 DOI: 10.1016/j.bioactmat.2021.03.040] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 03/05/2021] [Accepted: 03/26/2021] [Indexed: 12/13/2022] Open
Abstract
Natural hydrogels are one of the most promising biomaterials for tissue engineering applications, due to their biocompatibility, biodegradability, and extracellular matrix mimicking ability. To surpass the limitations of conventional fabrication techniques and to recapitulate the complex architecture of native tissue structure, natural hydrogels are being constructed using novel biofabrication strategies, such as textile techniques and three-dimensional bioprinting. These innovative techniques play an enormous role in the development of advanced scaffolds for various tissue engineering applications. The progress, advantages, and shortcomings of the emerging biofabrication techniques are highlighted in this review. Additionally, the novel applications of biofabricated natural hydrogels in cardiac, neural, and bone tissue engineering are discussed as well.
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Affiliation(s)
| | - Margaretha Morsink
- Department of Applied Stem Cell Technologies, TechMed Centre, University of Twente, Enschede, 7500AE, the Netherlands
| | | | - Cyril Kahn
- LIBio, Université de Lorraine, Nancy, F-54000, France
| | - Ali Tamayol
- Department of Biomedical Engineering, University of Connecticut, Farmington, CT, 06030, USA
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12
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Application of "Magnetic Anchors" to Align Collagen Fibres for Axonal Guidance. Gels 2021; 7:gels7040154. [PMID: 34698174 PMCID: PMC8544430 DOI: 10.3390/gels7040154] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 09/24/2021] [Accepted: 09/24/2021] [Indexed: 11/21/2022] Open
Abstract
The use of neural scaffolds with a highly defined microarchitecture, fabricated with standard techniques such as electrospinning and microfluidic spinning, requires surgery for their application to the site of injury. To circumvent the risk associated with aciurgy, new strategies for treatment are sought. This has led to an increase in the quantity of research into injectable hydrogels in recent years. However, little research has been conducted into controlling the building blocks within these injectable hydrogels to produce similar scaffolds with a highly defined microarchitecture. “Magnetic particle string” and biomimetic amphiphile self-assembly are some of the methods currently available to achieve this purpose. Here, we developed a “magnetic anchor” method to improve the orientation of collagen fibres within injectable 3D scaffolds. This procedure uses GMNP (gold magnetic nanoparticle) “anchors” capped with CMPs (collagen mimetic peptides) that “chain” them to collagen fibres. Through the application of a magnetic field during the gelling process, these collagen fibres are aligned accordingly. It was shown in this study that the application of CMP functionalised GMNPs in a magnetic field significantly improves the alignment of the collagen fibres, which, in turn, improves the orientation of PC12 neurites. The growth of these neurite extensions, which were shown to be significantly longer, was also improved. The PC12 cells grown in collagen scaffolds fabricated using the “magnetic anchor” method shows comparable cellular viability to that of the untreated collagen scaffolds. This capability of remote control of the alignment of fibres within injectable collagen scaffolds opens up new strategic avenues in the research for treating debilitating neural tissue pathologies.
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13
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Cui L, Yao Y, Yim EKF. The effects of surface topography modification on hydrogel properties. APL Bioeng 2021; 5:031509. [PMID: 34368603 PMCID: PMC8318605 DOI: 10.1063/5.0046076] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 06/21/2021] [Indexed: 12/23/2022] Open
Abstract
Hydrogel has been an attractive biomaterial for tissue engineering, drug delivery, wound healing, and contact lens materials, due to its outstanding properties, including high water content, transparency, biocompatibility, tissue mechanical matching, and low toxicity. As hydrogel commonly possesses high surface hydrophilicity, chemical modifications have been applied to achieve the optimal surface properties to improve the performance of hydrogels for specific applications. Ideally, the effects of surface modifications would be stable, and the modification would not affect the inherent hydrogel properties. In recent years, a new type of surface modification has been discovered to be able to alter hydrogel properties by physically patterning the hydrogel surfaces with topographies. Such physical patterning methods can also affect hydrogel surface chemical properties, such as protein adsorption, microbial adhesion, and cell response. This review will first summarize the works on developing hydrogel surface patterning methods. The influence of surface topography on interfacial energy and the subsequent effects on protein adsorption, microbial, and cell interactions with patterned hydrogel, with specific examples in biomedical applications, will be discussed. Finally, current problems and future challenges on topographical modification of hydrogels will also be discussed.
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Affiliation(s)
- Linan Cui
- Department of Chemical Engineering, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Yuan Yao
- Department of Chemical Engineering, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
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14
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Jo B, Nie M, Takeuchi S. Manufacturing of animal products by the assembly of microfabricated tissues. Essays Biochem 2021; 65:611-623. [PMID: 34156065 PMCID: PMC8365324 DOI: 10.1042/ebc20200092] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 04/22/2021] [Accepted: 05/27/2021] [Indexed: 12/15/2022]
Abstract
With the current rapidly growing global population, the animal product industry faces challenges which not only demand drastically increased amounts of animal products but also have to limit the emission of greenhouse gases and animal waste. These issues can be solved by the combination of microfabrication and tissue engineering techniques, which utilize the microtissue as a building component for larger tissue assembly to fabricate animal products. Various methods for the assembly of microtissue have been proposed such as spinning, cell layering, and 3D bioprinting to mimic the intricate morphology and function of the in vivo animal tissues. Some of the demonstrations on cultured meat and leather-like materials present promising outlooks on the emerging field of in vitro production of animal products.
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Affiliation(s)
- Byeongwook Jo
- Department of Mechano-Informatics, Graduate School of Information Science and Technology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Minghao Nie
- Department of Mechano-Informatics, Graduate School of Information Science and Technology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Shoji Takeuchi
- Department of Mechano-Informatics, Graduate School of Information Science and Technology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan
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15
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Zhao M, Liu H, Zhang X, Wang H, Tao T, Qin J. A flexible microfluidic strategy to generate grooved microfibers for guiding cell alignment. Biomater Sci 2021; 9:4880-4890. [PMID: 34152350 DOI: 10.1039/d1bm00549a] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydrogel microfibers are widely applied in tissue engineering and regenerative medicine due to their tunable morphology, componential anisotropy, and good biocompatibility. Specifically, grooved microfibers with unique advantages can facilitate cell alignment for mimicking the microstructures of myobundles. Herein, a microfluidic spinning system is proposed for flexibly generating grooved microfibers relying on the volume change after ionic crosslinking of sodium alginate (NaA) with different concentrations. In the system, multiple parallel channels are integrated into a flow-focusing microchip and NaA with various concentrations is introduced into the respective channels for fabricating well-defined microfibers. The size and shape of the fibers are tuned by the viscosity and concentration of the NaA solution, as well as the flow rates of NaA and calcium chloride (CaCl2) in a controllable manner. Moreover, the grooved fibers with heterogeneous components can be generated via co-spinning gelatin methacrylate (GelMA) and NaA to form interpenetrating polymer networks (IPNs). The microfibers with heterogeneous IPNs are successfully used as anisotropic scaffolds for the 3D culture of muscle cells (C2C12). The muscle cells grown on the microfibers exhibited good viability and ordered alignment, indicating the good biocompatibility and orientational function of the heterogeneous fibers. The proposed approach is flexible and controllable, holding potential in replicating various aligned microstructures in vivo, such as bundles of nerves and blood vessels.
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Affiliation(s)
- Mengqian Zhao
- CAS Key Laboratory of SSAC, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P.R. China. and University of Chinese Academy of Sciences, Beijing, 100049, P.R. China
| | - Haitao Liu
- CAS Key Laboratory of SSAC, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P.R. China. and University of Chinese Academy of Sciences, Beijing, 100049, P.R. China
| | - Xu Zhang
- CAS Key Laboratory of SSAC, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P.R. China.
| | - Hui Wang
- CAS Key Laboratory of SSAC, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P.R. China. and University of Chinese Academy of Sciences, Beijing, 100049, P.R. China
| | - Tingting Tao
- CAS Key Laboratory of SSAC, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P.R. China. and University of Chinese Academy of Sciences, Beijing, 100049, P.R. China
| | - Jianhua Qin
- CAS Key Laboratory of SSAC, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P.R. China. and University of Chinese Academy of Sciences, Beijing, 100049, P.R. China and Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, 100101, P.R. China and CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, 200031, China
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16
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Yan D, Zhang S, Yu F, Gong D, Lin J, Yao Q, Fu Y. Insight into levofloxacin loaded biocompatible electrospun scaffolds for their potential as conjunctival substitutes. Carbohydr Polym 2021; 269:118341. [PMID: 34294349 DOI: 10.1016/j.carbpol.2021.118341] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 05/25/2021] [Accepted: 06/13/2021] [Indexed: 11/19/2022]
Abstract
The rehabilitation of visual acuity with severe conjunctival fibrosis depends on ocular reconstruction with suitable conjunctival substitutes. In this study, we have developed poly(lactic acid) (PLA) electrospun nanofibrous membranes (EFMs) surface coated by cellulose nanofibrils (CNF) and/or silk peptide (SP). The CNF coating improved the hydrophilicity and the SP coating proliferated conjunctival epithelial cells (CjECs). To prevent post-operative infections, the composite scaffolds were loaded with levofloxacin (LF), constantly exerting efficient bactericidal effects. In in vivo evaluations, the PLA EFMs presented excellent therapeutic effects by promoting structural and functional restoration of conjunctiva after transplant. Even with reduced topical administration of antibiotics, the coloboma treated with LF loaded scaffolds presented no infections. It could be deduced that the potent bacterial inhibition feature could save troubles for patients by minimizing the application of antibiotics post-surgery. Hence, the developed PLA EFMs loaded with LF could be promising conjunctival substitutes.
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Affiliation(s)
- Dan Yan
- Department of Ophthalmology, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China; Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, China
| | - Siyi Zhang
- Department of Ophthalmology, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China; Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, China
| | - Fei Yu
- Department of Ophthalmology, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China; Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, China
| | - Danni Gong
- Department of Ophthalmology, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China; Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, China
| | - Jinyou Lin
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, China.
| | - Qinke Yao
- Department of Ophthalmology, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China; Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, China.
| | - Yao Fu
- Department of Ophthalmology, Ninth People's Hospital, Shanghai JiaoTong University School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China; Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, China.
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17
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Ng S, Kurisawa M. Integrating biomaterials and food biopolymers for cultured meat production. Acta Biomater 2021; 124:108-129. [PMID: 33472103 DOI: 10.1016/j.actbio.2021.01.017] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 12/18/2020] [Accepted: 01/11/2021] [Indexed: 02/07/2023]
Abstract
Cultured meat has recently achieved mainstream prominence due to the emergence of societal and industrial interest. In contrast to animal-based production of traditional meat, the cultured meat approach entails laboratory cultivation of engineered muscle tissue. However, bioengineers have hitherto engineered tissues to fulfil biomedical endpoints, and have had limited experience in engineering muscle tissue for its post-mortem traits, which broadly govern consumer definitions of meat quality. Furthermore, existing tissue engineering approaches face fundamental challenges in technical feasibility and industrial scalability for cultured meat production. This review discusses how animal-based meat production variables influence meat properties at both the molecular and functional level, and whether current cultured meat approaches recapitulate these properties. In addition, this review considers how conventional meat producers employ exogenous biopolymer-based meat ingredients and processing techniques to mimic desirable meat properties in meat products. Finally, current biomaterial strategies for engineering muscle and adipose tissue are surveyed in the context of emerging constraints that pertain to cultured meat production, such as edibility, sustainability and scalability, and potential areas for integrating biomaterials and food biopolymer approaches to address these constraints are discussed. STATEMENT OF SIGNIFICANCE: Laboratory-grown or cultured meat has gained increasing interest from industry and the public, but currently faces significant impediment to market feasibility. This is due to fundamental knowledge gaps in producing realistic meat tissues via conventional tissue engineering approaches, as well as translational challenges in scaling up these approaches in an efficient, sustainable and high-volume manner. By defining the molecular basis for desirable meat quality attributes, such as taste and texture, and introducing the fundamental roles of food biopolymers in mimicking these properties in conventional meat products, this review aims to bridge the historically disparate fields of meat science and biomaterials engineering in order to inspire potentially synergistic strategies that address some of these challenges.
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18
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Rinoldi C, Kijeńska-Gawrońska E, Khademhosseini A, Tamayol A, Swieszkowski W. Fibrous Systems as Potential Solutions for Tendon and Ligament Repair, Healing, and Regeneration. Adv Healthc Mater 2021; 10:e2001305. [PMID: 33576158 PMCID: PMC8048718 DOI: 10.1002/adhm.202001305] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 10/19/2020] [Indexed: 02/06/2023]
Abstract
Tendon and ligament injuries caused by trauma and degenerative diseases are frequent and affect diverse groups of the population. Such injuries reduce musculoskeletal performance, limit joint mobility, and lower people's comfort. Currently, various treatment strategies and surgical procedures are used to heal, repair, and restore the native tissue function. However, these strategies are inadequate and, in some cases, fail to re-establish the lost functionality. Tissue engineering and regenerative medicine approaches aim to overcome these disadvantages by stimulating the regeneration and formation of neotissues. Design and fabrication of artificial scaffolds with tailored mechanical properties are crucial for restoring the mechanical function of tendons. In this review, the tendon and ligament structure, their physiology, and performance are presented. On the other hand, the requirements are focused for the development of an effective reconstruction device. The most common fiber-based scaffolding systems are also described for tendon and ligament tissue regeneration like strand fibers, woven, knitted, braided, and braid-twisted fibrous structures, as well as electrospun and wet-spun constructs, discussing critically the advantages and limitations of their utilization. Finally, the potential of multilayered systems as the most effective candidates for tendon and ligaments tissue engineering is pointed out.
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Affiliation(s)
- Chiara Rinoldi
- Materials Design Division, Faculty of Materials Science and Engineering, Warsaw University of Technology, Warsaw, 02-507, Poland
| | - Ewa Kijeńska-Gawrońska
- Materials Design Division, Faculty of Materials Science and Engineering, Warsaw University of Technology, Warsaw, 02-507, Poland
- Centre for Advanced Materials and Technologies CEZAMAT, Warsaw University of Technology, Warsaw, 02-822, Poland
| | - Ali Khademhosseini
- Department of Bioengineering, Department of Chemical and Biomolecular Engineering, Department of Radiology, California NanoSystems Institute (CNSI), University of California, Los Angeles, CA, 90095, USA
- Terasaki Institute for Biomedical Innovation (TIBI), Los Angeles, CA, 90024, USA
| | - Ali Tamayol
- Department of Biomedical Engineering, University of Connecticut, Farmington, CT, 06030, USA
| | - Wojciech Swieszkowski
- Materials Design Division, Faculty of Materials Science and Engineering, Warsaw University of Technology, Warsaw, 02-507, Poland
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19
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Kim K, Choi JH, Shin M. Mechanical Stabilization of Alginate Hydrogel Fiber and 3D Constructs by Mussel-Inspired Catechol Modification. Polymers (Basel) 2021; 13:892. [PMID: 33799402 PMCID: PMC8001931 DOI: 10.3390/polym13060892] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 03/11/2021] [Accepted: 03/11/2021] [Indexed: 12/02/2022] Open
Abstract
Alginate is a representative biocompatible natural polymer with low cost for a variety of biomedical applications, such as wound dressing, drug delivery systems, tissue scaffolds, and 3D bioprinting. Particularly, the rapid and facile gelation of alginate via ionic interactions with divalent cations has been used for in situ 3D hydrogel fiber formation, which is potentially applicable to engineering cell alignment. However, challenges in enhancing the mechanical properties of alginate hydrogel fibers under physiological conditions are unresolved because of their fast dissociation by ion exchange. Herein, we report a stabilization strategy for alginate hydrogel fibers through mussel-inspired catechol chemistry, which involves inter-catechol crosslinking within a few minutes under basic conditions. The fabrication of catechol-tethered alginate hydrogel fibers through wet-spinning enabled the design of mechanically strong 3D constructs consisting of fibers. Catechol-to-quinone oxidation followed by covalent crosslinking enhanced the tensile strength of a single fiber. Additionally, the 'gluing' capability of the catechol stabilized the interface among the fibers, thus retaining the shape fidelity of the 3D constructs and encapsulating the cell density during culture. Our findings will be useful for designing bioink materials specialized in fibrous-type tissue scaffolds with mechanical stability.
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Affiliation(s)
- Kyoungryong Kim
- Department of Biomedical Engineering, Sungkyunkwan University (SKKU), Seobu-ro 2066, Jangan-gu, Suwon 16419, Gyeonggi-do, Korea;
| | - Jae Hyuk Choi
- Department of Intelligent Precision Healthcare Convergence, Sungkyunkwan University (SKKU), Seobu-ro 2066, Jangan-gu, Suwon 16419, Gyeonggi-do, Korea;
| | - Mikyung Shin
- Department of Biomedical Engineering, Sungkyunkwan University (SKKU), Seobu-ro 2066, Jangan-gu, Suwon 16419, Gyeonggi-do, Korea;
- Department of Intelligent Precision Healthcare Convergence, Sungkyunkwan University (SKKU), Seobu-ro 2066, Jangan-gu, Suwon 16419, Gyeonggi-do, Korea;
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20
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Lu B, Li M, Fang Y, Liu Z, Zhang T, Xiong Z. Rapid Fabrication of Cell-Laden Microfibers for Construction of Aligned Biomimetic Tissue. Front Bioeng Biotechnol 2021; 8:610249. [PMID: 33585412 PMCID: PMC7873948 DOI: 10.3389/fbioe.2020.610249] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 12/18/2020] [Indexed: 11/13/2022] Open
Abstract
Bottom-up engineering of tissue constructs is being rapidly developed and broadly applied in biomanufacturing. As one type of building block, cell-laden microfibers are promising for reconstruction of oriented structures and functions of linear tissues, such as skeletal muscles, myocardia, and spinal cord tissues. Herein, we propose wet-spinning method with agitating collection, wherein alginate-based material is extruded into an agitated CaCl2 bath with a magnetic rotor acting as the microfiber collector. By applying this method, we achieve rapid fabrication and oriented collection of hydrogel microfibers with diameters ranging from 100 to 400 μm. In addition, we encapsulate myoblasts in the hydrogel to form cell-laden microfibers, which show a high viability (more than 94%) during in vitro culture. Moreover, the method allows to fabricate of cell-laden core-sheath microfibers and hollow microfibers. We also fabricate 3D constructs using various methods of microfiber assembly like weaving and braiding. The assembling results suggest that the proposed method is a promising technology for bottom-up engineering of aligned biomimetic tissue constructs.
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Affiliation(s)
- Bingchuan Lu
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing, China
- Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Beijing, China
- “Biomanufacturing and Engineering Living Systems” Innovation International Talents Base (111 Base), Beijing, China
| | - Mingfeng Li
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing, China
- Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Beijing, China
- “Biomanufacturing and Engineering Living Systems” Innovation International Talents Base (111 Base), Beijing, China
| | - Yongcong Fang
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing, China
- Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Beijing, China
- “Biomanufacturing and Engineering Living Systems” Innovation International Talents Base (111 Base), Beijing, China
| | - Zibo Liu
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing, China
- Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Beijing, China
- “Biomanufacturing and Engineering Living Systems” Innovation International Talents Base (111 Base), Beijing, China
| | - Ting Zhang
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing, China
- Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Beijing, China
- “Biomanufacturing and Engineering Living Systems” Innovation International Talents Base (111 Base), Beijing, China
| | - Zhuo Xiong
- Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing, China
- Biomanufacturing and Rapid Forming Technology Key Laboratory of Beijing, Beijing, China
- “Biomanufacturing and Engineering Living Systems” Innovation International Talents Base (111 Base), Beijing, China
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21
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Tang J, Wu C, Chen S, Qiao Z, Borovskikh P, Shchegolkov A, Chen L, Wei D, Sun J, Fan H. Combining Electrospinning and Electrospraying to Prepare a Biomimetic Neural Scaffold with Synergistic Cues of Topography and Electrotransduction. ACS APPLIED BIO MATERIALS 2020; 3:5148-5159. [PMID: 35021691 DOI: 10.1021/acsabm.0c00595] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The nerve tissue consists of aligned fibrous nerve bundles, in which neurons communicate and transmit information through electrical signals. Hence, biocompatibility, oriented fibrous structure, and electrical conductivity are key factors for the biomimetic design of nerve scaffolds. Herein, we built a technical platform to combine electrospinning and electrospraying for preparing a biomimetic scaffold with conductivity and aligned fibrous structure. The highly aligned polycaprolactone (PCL) microfibrous scaffolds with co-sprayed collagen and conductive polypyrrole nanoparticles (PPy NPs) showed good bioactivity, supplying a platform for exploring the effects of topographical guidance, fiber conductivity, and its mediated external electrical signals on neurogenesis. The results revealed that collagen-coated highly aligned PCL microfibrous scaffold induced PC12 cells oriented and elongated along the direction of fibers. In addition, the improved conductivity of PPy-coated aligned fibers and its mediated external electrical stimulation collectively contributed to the functional expression, including elongation, gene expression, and protein expression, of PC12 cells. We further demonstrated the potential mechanism where the fiber conductivity and its mediated external electrical signals resulted in the upregulation of voltage-gated calcium channel, leading to the influx of Ca2+, thereby activating intracellular signaling cascades, ultimately enhancing neurogenesis. This approach provides a strategy to design aligned fibrillary scaffolds with bioactive adhesion domains and electroconductivity for neural regeneration.
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Affiliation(s)
- Jiajia Tang
- Engineering Research Center in Biomaterials, Sichuan University, Chengdu 610064, Sichuan, China
| | - Chengheng Wu
- Engineering Research Center in Biomaterials, Sichuan University, Chengdu 610064, Sichuan, China
| | - Suping Chen
- Engineering Research Center in Biomaterials, Sichuan University, Chengdu 610064, Sichuan, China
| | - Zi Qiao
- Engineering Research Center in Biomaterials, Sichuan University, Chengdu 610064, Sichuan, China
| | - Pavel Borovskikh
- School of Business, Economics and Law, Martin-Luther-University Halle-Wittenberg, Universitätsplatz 10, 06108 Halle (Saale), Germany
| | - Alexandr Shchegolkov
- Institute of Technology,Tambov State Technical University, 106 Sovetskaya Street, Tambov 392000, Russia Federation
| | - Lu Chen
- Engineering Research Center in Biomaterials, Sichuan University, Chengdu 610064, Sichuan, China
| | - Dan Wei
- Engineering Research Center in Biomaterials, Sichuan University, Chengdu 610064, Sichuan, China
| | - Jing Sun
- Engineering Research Center in Biomaterials, Sichuan University, Chengdu 610064, Sichuan, China
| | - Hongsong Fan
- Engineering Research Center in Biomaterials, Sichuan University, Chengdu 610064, Sichuan, China
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22
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Chen S, Wu C, Liu A, Wei D, Xiao Y, Guo Z, Chen L, Zhu Y, Sun J, Luo H, Fan H. Biofabrication of nerve fibers with mimetic myelin sheath-like structure and aligned fibrous niche. Biofabrication 2020; 12:035013. [PMID: 32240990 DOI: 10.1088/1758-5090/ab860d] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Nerve tissues contain hierarchically ordered nerve fibers, while each of the nerve fibers has nano-oriented fibrous extracellular matrix and a core-shell structure of tubular myelin sheath with elongated axons encapsulated. Here, we report, for the first time, a ready approach to fabricate biomimetic nerve fibers which are oriented and have a core-shell structure to spatially encapsulate two types of cells, neurons and Schwann cells. A microfluidic system was designed and assembled, which contained a coaxial triple-channel chip and a stretching loading device. Alginate was used first to assist the fabrication, which was washed away afterwards. The orientation of the biomimetic nerve fibers was optimized by the control of the compositions of methacrylate hyaluronan and fibrin, together with the parameters of microfluidic shearing and external stretching. Also, neurons and Schwann cells, which were respectively located in the core and shell of the fibers, displayed advanced biologic functions, including neurogenesis and myelinating maturation. We demonstrate that the neural performance is relatively good, compared to that resulted from individually encapsulated in single-layer microfibers. The present study brings insights to fabricate biomimetic nerve fibers for their potential in neuroscience research and nerve regeneration. Moreover, the present methodology on the fabrication of oriented fibers with different types of cells separately encapsulated should be applicable to biomimetic constructions of various tissues.
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Affiliation(s)
- Suping Chen
- Engineering Research Center in Biomaterials, Sichuan University, Chengdu, Sichuan 610064 People's Republic of China
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23
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Lin W, Lan W, Wu Y, Zhao D, Wang Y, He X, Li J, Li Z, Luo F, Tan H, Fu Q. Aligned 3D porous polyurethane scaffolds for biological anisotropic tissue regeneration. Regen Biomater 2020; 7:19-27. [PMID: 32440358 PMCID: PMC7233617 DOI: 10.1093/rb/rbz031] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 08/18/2019] [Accepted: 08/26/2019] [Indexed: 02/05/2023] Open
Abstract
A green fabrication process (organic solvent-free) of artificial scaffolds is required in tissue engineering field. In this work, a series of aligned three-dimensional (3D) scaffolds are made from biodegradable waterborne polyurethane (PU) emulsion via directional freeze-drying method to ensure no organic byproducts. After optimizing the concentration of polymer in the emulsion and investigating different freezing temperatures, an aligned PUs scaffold (PU14) generated from 14 wt% polymer content and processed at -196°C was selected based on the desired oriented porous structure (pore size of 32.5 ± 9.3 μm, porosity of 92%) and balanced mechanical properties both in the horizontal direction (strength of 41.3 kPa, modulus of 72.3 kPa) and in the vertical direction (strength of 45.5 kPa, modulus of 139.3 kPa). The response of L929 cells and the regeneration of muscle tissue demonstrated that such pure material-based aligned 3D scaffold can facilitate the development of orientated cells and anisotropic tissue regeneration both in vitro and in vivo. Thus, these pure material-based scaffolds with ordered architecture have great potentials in tissue engineering for biological anisotropic tissue regeneration, such as muscle, nerve, spinal cord and so on.
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Affiliation(s)
- Weiwei Lin
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Wanling Lan
- Sichuan Institute for Food and Drug Control, Chengdu 611731, China
| | - Yingke Wu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Daiguo Zhao
- Sichuan Institute for Food and Drug Control, Chengdu 611731, China
| | - Yanchao Wang
- Department of Neurosurgery West China Hospital, Sichuan University, Chengdu 610065, China
| | - Xueling He
- Laboratory Animal Center of Sichuan University, Chengdu 610041, China
| | - Jiehua Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Zhen Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Feng Luo
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Hong Tan
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Qiang Fu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
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24
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Kristen M, Ainsworth MJ. Fiber Scaffold Patterning for Mending Hearts: 3D Organization Bringing the Next Step. Adv Healthc Mater 2020; 9:e1900775. [PMID: 31603288 PMCID: PMC7116178 DOI: 10.1002/adhm.201900775] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Revised: 09/14/2019] [Indexed: 12/14/2022]
Abstract
Heart failure (HF) is a leading cause of death worldwide. The most common conditions that lead to HF are coronary artery disease, myocardial infarction, valve disorders, high blood pressure, and cardiomyopathy. Due to the limited regenerative capacity of the heart, the only curative therapy currently available is heart transplantation. Therefore, there is a great need for the development of novel regenerative strategies to repair the injured myocardium, replace damaged valves, and treat occluded coronary arteries. Recent advances in manufacturing technologies have resulted in the precise fabrication of 3D fiber scaffolds with high architectural control that can support and guide new tissue growth, opening exciting new avenues for repair of the human heart. This review discusses the recent advancements in the novel research field of fiber patterning manufacturing technologies for cardiac tissue engineering (cTE) and to what extent these technologies could meet the requirements of the highly organized and structured cardiac tissues. Additionally, future directions of these novel fiber patterning technologies, designs, and applicability to advance cTE are presented.
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Affiliation(s)
- Marleen Kristen
- Regenerative Medicine Center, University Medical Center Utrecht,
Utrecht 3584 CT, The Netherlands; Department of Orthopedics, University Medical
Center Utrecht, Utrecht 3584 CX, The Netherlands
| | - Madison J. Ainsworth
- Regenerative Medicine Center, University Medical Center Utrecht,
Utrecht 3584 CT, The Netherlands; Department of Orthopedics, University Medical
Center Utrecht, Utrecht 3584 CX, The Netherlands
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Calejo I, Costa‐Almeida R, Reis RL, Gomes ME. A Textile Platform Using Continuous Aligned and Textured Composite Microfibers to Engineer Tendon-to-Bone Interface Gradient Scaffolds. Adv Healthc Mater 2019; 8:e1900200. [PMID: 31190369 DOI: 10.1002/adhm.201900200] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 05/20/2019] [Indexed: 12/30/2022]
Abstract
Tendon-to-bone interfaces exhibit a hierarchical multitissue transition. To replicate the progression from mineralized to nonmineralized tissue, a novel 3D fibrous scaffold is fabricated with spatial control over mineral distribution and cellular alignment. For this purpose, wet-spun continuous microfibers are produced using polycaprolactone (PCL)/ gelatin and PCL/gelatin/hydroxyapatite nano-to-microparticles (HAp). Higher extrusion rates result in aligned PCL/gelatin microfibers while, in the case of PCL/gelatin/HAp, the presence of minerals leads to a less organized structure. Biological performance using human adipose-derived stem cells (hASCs) demonstrates that topography of PCL/gelatin microfibers can induce cytoskeleton elongation, resembling native tenogenic organization. Matrix mineralization on PCL/gelatin/HAp wet-spun composite microfibers suggest the production of an osteogenic-like matrix, without external addition of osteogenic medium supplementation. As proof of concept, a 3D gradient structure is produced by assembling PCL/gelatin and PCL/gelatin/HAp microfibers, resulting in a fibrous scaffold with a continuous topographical and compositional gradient. Overall, the feasibility of wet-spinning for the generation of continuously aligned and textured microfibers is demonsrated, which can be further assembled into more complex 3D gradient structures to mimic characteristic features of tendon-to-bone interfaces.
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Affiliation(s)
- Isabel Calejo
- 3B's Research Groupi3Bs ‐ Research Institute on BiomaterialsBiodegradables and BiomimeticsUniversity of MinhoHeadquarters of the European Institute of Excellence on Tissue Engineering and Regenerative MedicineAvePark, Parque de Ciência e Tecnologia Zona Industrial da Gandra 4805‐017 Barco Guimarães Portugal
- ICVS/3B's‐ PT Government Associate Laboratory 4806‐909 Braga Guimarães Portugal
| | - Raquel Costa‐Almeida
- 3B's Research Groupi3Bs ‐ Research Institute on BiomaterialsBiodegradables and BiomimeticsUniversity of MinhoHeadquarters of the European Institute of Excellence on Tissue Engineering and Regenerative MedicineAvePark, Parque de Ciência e Tecnologia Zona Industrial da Gandra 4805‐017 Barco Guimarães Portugal
- ICVS/3B's‐ PT Government Associate Laboratory 4806‐909 Braga Guimarães Portugal
| | - Rui L. Reis
- 3B's Research Groupi3Bs ‐ Research Institute on BiomaterialsBiodegradables and BiomimeticsUniversity of MinhoHeadquarters of the European Institute of Excellence on Tissue Engineering and Regenerative MedicineAvePark, Parque de Ciência e Tecnologia Zona Industrial da Gandra 4805‐017 Barco Guimarães Portugal
- ICVS/3B's‐ PT Government Associate Laboratory 4806‐909 Braga Guimarães Portugal
- The Discoveries Centre for Regenerative and Precision MedicineHeadquarters at University of Minho Avepark 4805‐017 Barco Guimarães Portugal
| | - Manuela E. Gomes
- 3B's Research Groupi3Bs ‐ Research Institute on BiomaterialsBiodegradables and BiomimeticsUniversity of MinhoHeadquarters of the European Institute of Excellence on Tissue Engineering and Regenerative MedicineAvePark, Parque de Ciência e Tecnologia Zona Industrial da Gandra 4805‐017 Barco Guimarães Portugal
- ICVS/3B's‐ PT Government Associate Laboratory 4806‐909 Braga Guimarães Portugal
- The Discoveries Centre for Regenerative and Precision MedicineHeadquarters at University of Minho Avepark 4805‐017 Barco Guimarães Portugal
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Wu C, Liu A, Chen S, Zhang X, Chen L, Zhu Y, Xiao Z, Sun J, Luo H, Fan H. Cell-Laden Electroconductive Hydrogel Simulating Nerve Matrix To Deliver Electrical Cues and Promote Neurogenesis. ACS APPLIED MATERIALS & INTERFACES 2019; 11:22152-22163. [PMID: 31194504 DOI: 10.1021/acsami.9b05520] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Natural nerve tissue is composed of nerve bundles with multiple aligned assembles, and matrix electroconductivity is beneficial to the transmission of intercellular electrical signals, or effectively deliver external electrical cues to cells. Herein, aiming at the biomimetic design of the extracellular matrix for neurons, we first synthesized electroconductive polypyrrole (PPy) nanoparticles with modified hydrophilicity to improve their uniformity in collagen hydrogel. Next, cell-laden collagen-PPy hybrid hydrogel microfibers with highly oriented microstructures were fabricated via a microfluidic chip. The hydrogel microfibers formed a biomimetic three-dimensional microenvironment for neurons, resulting from the native cell adhesion domains, oriented fibrous structures, and conductivity. The oriented fibrous microstructures enhanced neuron-like cells aligning with fibers' axon; the matrix conductivity improved cell extension and upregulated neural-related gene expression; moreover, external electrical stimulation further promoted the neuronal functional expression. This mechanism was attributed to the electroconductive matrix and its delivered electrical stimulation to cells synergistically upregulated the expression of an L-type voltage-gated calcium channel, resulting in an increase in the intracellular calcium level, which in turn promoted neurogenesis. This approach has potential in constructing the biomimetic microenvironment for neurogenesis.
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Affiliation(s)
- Chengheng Wu
- National Engineering Research Center for Biomaterials , Sichuan University , Sichuan , Chengdu 610064 , P. R. China
| | - Amin Liu
- National Engineering Research Center for Biomaterials , Sichuan University , Sichuan , Chengdu 610064 , P. R. China
| | - Suping Chen
- National Engineering Research Center for Biomaterials , Sichuan University , Sichuan , Chengdu 610064 , P. R. China
| | - Xiaofeng Zhang
- National Engineering Research Center for Biomaterials , Sichuan University , Sichuan , Chengdu 610064 , P. R. China
| | - Lu Chen
- National Engineering Research Center for Biomaterials , Sichuan University , Sichuan , Chengdu 610064 , P. R. China
| | - Yuda Zhu
- National Engineering Research Center for Biomaterials , Sichuan University , Sichuan , Chengdu 610064 , P. R. China
| | - Zhanwen Xiao
- National Engineering Research Center for Biomaterials , Sichuan University , Sichuan , Chengdu 610064 , P. R. China
| | - Jing Sun
- National Engineering Research Center for Biomaterials , Sichuan University , Sichuan , Chengdu 610064 , P. R. China
| | - Hongrong Luo
- National Engineering Research Center for Biomaterials , Sichuan University , Sichuan , Chengdu 610064 , P. R. China
| | - Hongsong Fan
- National Engineering Research Center for Biomaterials , Sichuan University , Sichuan , Chengdu 610064 , P. R. China
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Sodium alginate/feather keratin-g-allyloxy polyethylene glycol composite phase change fiber. Int J Biol Macromol 2019; 131:192-200. [DOI: 10.1016/j.ijbiomac.2019.02.168] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Revised: 02/27/2019] [Accepted: 02/28/2019] [Indexed: 11/19/2022]
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28
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Papalazarou V, Salmeron-Sanchez M, Machesky LM. Tissue engineering the cancer microenvironment-challenges and opportunities. Biophys Rev 2018; 10:1695-1711. [PMID: 30406572 PMCID: PMC6297082 DOI: 10.1007/s12551-018-0466-8] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Accepted: 10/15/2018] [Indexed: 12/25/2022] Open
Abstract
Mechanosensing is increasingly recognised as important for tumour progression. Tumours become stiff and the forces that normally balance in the healthy organism break down and become imbalanced, leading to increases in migration, invasion and metastatic dissemination. Here, we review recent advances in our understanding of how extracellular matrix properties, such as stiffness, viscoelasticity and architecture control cell behaviour. In addition, we discuss how the tumour microenvironment can be modelled in vitro, capturing these mechanical aspects, to better understand and develop therapies against tumour spread. We argue that by gaining a better understanding of the microenvironment and the mechanical forces that govern tumour dynamics, we can make advances in combatting cancer dormancy, recurrence and metastasis.
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Affiliation(s)
- Vassilis Papalazarou
- CRUK Beatson Institute for Cancer Research and Institute of cancer Sciences, University of Glasgow, Garscube Campus, Switchback Road, Bearsden, Glasgow, G61 1BD, UK
- The Centre for the Cellular Microenvironment, University of Glasgow, Glasgow, G12 8QQ, UK
| | | | - Laura M Machesky
- CRUK Beatson Institute for Cancer Research and Institute of cancer Sciences, University of Glasgow, Garscube Campus, Switchback Road, Bearsden, Glasgow, G61 1BD, UK.
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