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Yu L, Zeng G, Xu J, Han M, Wang Z, Li T, Long M, Wang L, Huang W, Wu Y. Development of Poly(Glycerol Sebacate) and Its Derivatives: A Review of the Progress over the past Two Decades. POLYM REV 2022. [DOI: 10.1080/15583724.2022.2150774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Liu Yu
- Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Digital Medicine and Biomechanics, Department of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Guanjie Zeng
- Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Digital Medicine and Biomechanics, Department of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
- The First School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Jie Xu
- Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangzhou, China
| | - Mingying Han
- Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangzhou, China
| | - Zihan Wang
- Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Digital Medicine and Biomechanics, Department of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
- The First School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Ting Li
- Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Digital Medicine and Biomechanics, Department of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Meng Long
- Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Digital Medicine and Biomechanics, Department of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Ling Wang
- Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangzhou, China
| | - Wenhua Huang
- Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Digital Medicine and Biomechanics, Department of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Yaobin Wu
- Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Digital Medicine and Biomechanics, Department of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
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2
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Godinho B, Gama N, Ferreira A. Different methods of synthesizing poly(glycerol sebacate) (PGS): A review. Front Bioeng Biotechnol 2022; 10:1033827. [PMID: 36532580 PMCID: PMC9748623 DOI: 10.3389/fbioe.2022.1033827] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 11/10/2022] [Indexed: 08/24/2023] Open
Abstract
Poly(glycerol sebacate) (PGS) is a biodegradable elastomer that has attracted increasing attention as a potential material for applications in biological tissue engineering. The conventional method of synthesis, first described in 2002, is based on the polycondensation of glycerol and sebacic acid, but it is a time-consuming and energy-intensive process. In recent years, new approaches for producing PGS, PGS blends, and PGS copolymers have been reported to not only reduce the time and energy required to obtain the final material but also to adjust the properties and processability of the PGS-based materials based on the desired applications. This review compiles more than 20 years of PGS synthesis reports, reported inconsistencies, and proposed alternatives to more rapidly produce PGS polymer structures or PGS derivatives with tailor-made properties. Synthesis conditions such as temperature, reaction time, reagent ratio, atmosphere, catalysts, microwave-assisted synthesis, and PGS modifications (urethane and acrylate groups, blends, and copolymers) were revisited to present and discuss the diverse alternatives to produce and adapt PGS.
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Affiliation(s)
- Bruno Godinho
- CICECO-Aveiro Institute of Materials, University of Aveiro, Aveiro, Portugal
| | - Nuno Gama
- CICECO-Aveiro Institute of Materials, University of Aveiro, Aveiro, Portugal
| | - Artur Ferreira
- CICECO-Aveiro Institute of Materials, University of Aveiro, Aveiro, Portugal
- ESTGA-Águeda School of Technology and Management, Águeda, Portugal
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3
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An anti-inflammatory and neuroprotective biomimetic nanoplatform for repairing spinal cord injury. Bioact Mater 2022; 18:569-582. [PMID: 35845318 PMCID: PMC9256979 DOI: 10.1016/j.bioactmat.2022.05.026] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Revised: 05/20/2022] [Accepted: 05/20/2022] [Indexed: 11/23/2022] Open
Abstract
Spinal cord regeneration after a spinal cord injury (SCI) remains a difficult challenge due to the complicated inflammatory microenvironment and neuronal damage at the injury sites. In this study, retinoic acid (RA) and curcumin (Cur) were co-loaded with bovine serum albumin (BSA) self-assembly to obtain RA@BSA@Cur nanoparticles (NPs) for SCI treatment. Cur, as an antioxidant drug, facilitated reactive oxygen species (ROS) scavenging, and decreased the amount of inflammatory factors secreted by macrophages, while RA could enhance neurite extensions and neural differentiation. The constructed RA@BSA@Cur NPs not only induced polarization of macrophages toward pro-regenerative phenotypes and markedly reduced the inflammatory response of macrophages or microglia, but also increased neurite length in PC12 cells and neuronal differentiation of bone marrow mesenchymal stem cells, improved the differentiation of neural stem cells (NSCs) into β3-tubulin+ neurons, and reversed the pro-astrocyte differentiation effect of inflammatory cytokines on NSCs. In vivo experiments revealed that RA@BSA@Cur NPs regulated the phenotypic polarization of macrophages, inhibited the release of inflammatory mediators, promoted functional neuron regeneration and motor function, and further inhibited scar tissue formation. This study highlighted that the BSA-based biomimetic nanomaterials could be used as ROS scavengers and nerve regeneration promoters for treating SCI. Retinoic acid and Curcumin with remarkable neuroprotective and antioxidant activities are prepared for spinal cord injury. RA@BSA@Cur NPs induce polarization of macrophages, reduce levels of tumor necrosis factor-α and interleukin-6, and thus reduce the inflammatory response. RA@BSA@Cur NPs increase neurite length in PC12 cells and neuronal differentiation of bone marrow mesenchymal stem cells, and regulate the neurons/astrocytes differentiation of NSCs. RA@BSA@Cur NPs reverse the pro-astrocyte differentiation effect of macrophages-derived inflammatory cytokines on NSCs. RA@BSA@Cur NPs promote neuron regeneration and motor function, inhibit scar tissue formation, and regulate the phenotypic polarization of macrophages.
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4
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Sha D, Wu Z, Zhang J, Ma Y, Yang Z, Yuan Y. Development of modified and multifunctional poly(glycerol sebacate) (PGS)-based biomaterials for biomedical applications. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110830] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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5
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Wu Z, Jin K, Wang L, Fan Y. A Review: Optimization for Poly(glycerol sebacate) and Fabrication Techniques for Its Centered Scaffolds. Macromol Biosci 2021; 21:e2100022. [PMID: 34117837 DOI: 10.1002/mabi.202100022] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 04/26/2021] [Indexed: 12/29/2022]
Abstract
Poly(glycerol sebacate) (PGS), an emerging promising thermosetting polymer synthesized from sebacic acid and glycerol, has attracted considerable attention due to its elasticity, biocompatibility, and tunable biodegradation properties. But it also has some drawbacks such as harsh synthesis conditions, rapid degradation rates, and low stiffness. To overcome these challenges and optimize PGS performance, various modification methods and fabrication techniques for PGS-based scaffolds have been developed in recent years. Outlining the current modification approaches of PGS and summarizing the fabrication techniques for PGS-based scaffolds are of great importance to accelerate the development of new materials and enable them to be appropriately used in potential applications. Thus, this review comprehensively overviews PGS derivatives, PGS composites, PGS blends, processing for PGS-based scaffolds, and their related applications. It is envisioned that this review could instruct and inspire the design of the PGS-based materials and facilitate tissue engineering advances into clinical practice.
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Affiliation(s)
- Zebin Wu
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Centre for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100083, China
| | - Kaixiang Jin
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Centre for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100083, China
| | - Lizhen Wang
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Centre for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100083, China
| | - Yubo Fan
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Centre for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100083, China.,School of Medical Science and Engineering, Beihang University, Beijing, 100083, China
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6
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Yang Y, Gao B, Hu Y, Wei H, Zhang C, Chai R, Gu Z. Ordered inverse-opal scaffold based on bionic transpiration to create a biomimetic spine. NANOSCALE 2021; 13:8614-8622. [PMID: 33929471 DOI: 10.1039/d1nr00731a] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The availability of functional spinal cord scaffolds for nerve tissue engineering (NTE) strategies is an urgent clinical demand for spinal transplantation. However, effective transplanted spinal cord scaffolds are restricted by poor mechanical integrity, topological cues, complex processing, or other properties. Hence, this work aims to fabricate a new three-dimensional (3D) scaffold with electrically micropatterned materials for structural spinal mimicry. Inspired by plant transpiration, the scaffold templates are formed by self-assembled colloidal crystals in a glass capillary after the solvent evaporates gradually. Replicated from bionic transpiration photonic crystal templates, the specific 3D conductive inter-surface ordered microstructures are fabricated through carbonization and corrosion. Nerve cell reconstruction on columnar scaffolds indicated that these conductive porous materials were of excellent biocompatibility. Meanwhile, due to the homogeneously interconnected architecture characteristics, the inverse opal structures facilitated the connection and information transmission between nerve cells. Statistics on the number and length of neural neurites indicated that the microstructures with uniform pores guided nerve cell neurite growth and development. These biomimetic spine properties make them potential alternative scaffolds for nerve tissue engineering.
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Affiliation(s)
- Yanru Yang
- State Key Laboratory of Bioelectronics, Southeast University, Nanjing 210096, China.
| | - Bingbing Gao
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, China
| | - Yangnan Hu
- State Key Laboratory of Bioelectronics, School of Life Sciences and Technology, Jiangsu Province High-Tech Key Laboratory for Bio-Medical Research, Southeast University, Nanjing 210096, China.
| | - Hao Wei
- Department of Otorhinolaryngology Head and Neck Surgery, Drum Tower Clinical Medical College, Nanjing Medical University, Nanjing 210008, China
| | - Chen Zhang
- Department of Neurobiology, School of Basic Medical Sciences, Beijing Key Laboratory of Neural Regeneration and Repair, Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing 100069, China
| | - Renjie Chai
- State Key Laboratory of Bioelectronics, School of Life Sciences and Technology, Jiangsu Province High-Tech Key Laboratory for Bio-Medical Research, Southeast University, Nanjing 210096, China. and Co-Innovation Center of Neuroregeneration, Nantong University, Nantong 226001, China and Institute of Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China and Beijing Key Laboratory of Neural Regeneration and Repair, Capital Medical University, Beijing 100069, China
| | - Zhongze Gu
- State Key Laboratory of Bioelectronics, Southeast University, Nanjing 210096, China.
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7
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Li L, Peng Y, Yuan Q, Sun J, Zhuang A, Bi X. Cathelicidin LL37 Promotes Osteogenic Differentiation in vitro and Bone Regeneration in vivo. Front Bioeng Biotechnol 2021; 9:638494. [PMID: 34012955 PMCID: PMC8126666 DOI: 10.3389/fbioe.2021.638494] [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: 12/06/2020] [Accepted: 04/08/2021] [Indexed: 11/17/2022] Open
Abstract
Different types of biomaterials have been used to repair the defect of bony orbit. However, exposure and infections are still critical risks in clinical application. Biomaterials with characteristics of osteogenesis and antibiosis are needed for bone regeneration. In this study, we aimed to characterize the antimicrobial effects of cathelicidin-LL37 and to assess any impacts on osteogenic activity. Furthermore, we attempted to demonstrate the feasibility of LL37 as a potential strategy in the reconstruction of clinical bone defects. Human adipose-derived mesenchyme stem cells (hADSCs) were cultured with different concentrations of LL37 and the optimum concentration for osteogenesis was selected for further in vitro studies. We then evaluated the antibiotic properties of LL37 at the optimum osteogenic concentration. Finally, we estimated the efficiency of a PSeD/hADSCs/LL37 combined scaffold on reconstructing bone defects in the rat calvarial defect model. The osteogenic ability on hADSCs in vitro was shown to be dependent on the concentration of LL37 and reached a peak at 4 μg/ml. The optimum concentration of LL37 showed good antimicrobial properties against Escherichia coli and Staphylococcus anurans. The combination scaffold of PSeD/hADSCs/LL37 showed superior osteogenic properties compared to the PSeD/hADSCs, PSeD, and control groups scaffolds, indicating a strong bone reconstruction effect in the rat calvarial bone defect model. In Conclusion, LL37 was shown to promote osteogenic differentiation in vitro as well as antibacterial properties. The combination of PSeD/hADSCs/LL37 was advantageous in the rat calvarial defect reconstruction model, showing high potential in clinical bone regeneration.
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Affiliation(s)
- Lunhao Li
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, China
| | - Yiyu Peng
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, China
| | - Qingyue Yuan
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, China
| | - Jing Sun
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, China
| | - Ai Zhuang
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, China
| | - Xiaoping Bi
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Shanghai Key Laboratory of Orbital Diseases and Ocular Oncology, Shanghai, China
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8
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Vogt L, Ruther F, Salehi S, Boccaccini AR. Poly(Glycerol Sebacate) in Biomedical Applications-A Review of the Recent Literature. Adv Healthc Mater 2021; 10:e2002026. [PMID: 33733604 DOI: 10.1002/adhm.202002026] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 02/10/2021] [Indexed: 12/13/2022]
Abstract
Poly(glycerol sebacate) (PGS) continues to attract attention for biomedical applications owing to its favorable combination of properties. Conventionally polymerized by a two-step polycondensation of glycerol and sebacic acid, variations of synthesis parameters, reactant concentrations or by specific chemical modifications, PGS materials can be obtained exhibiting a wide range of physicochemical, mechanical, and morphological properties for a variety of applications. PGS has been extensively used in tissue engineering (TE) of cardiovascular, nerve, cartilage, bone and corneal tissues. Applications of PGS based materials in drug delivery systems and wound healing are also well documented. Research and development in the field of PGS continue to progress, involving mainly the synthesis of modified structures using copolymers, hybrid, and composite materials. Moreover, the production of self-healing and electroactive materials has been introduced recently. After almost 20 years of research on PGS, previous publications have outlined its synthesis, modification, properties, and biomedical applications, however, a review paper covering the most recent developments in the field is lacking. The present review thus covers comprehensively literature of the last five years on PGS-based biomaterials and devices focusing on advanced modifications of PGS for applications in medicine and highlighting notable advances of PGS based systems in TE and drug delivery.
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Affiliation(s)
- Lena Vogt
- Institute of Biomaterials University Erlangen‐Nuremberg Erlangen 91058 Germany
| | - Florian Ruther
- Institute of Biomaterials University Erlangen‐Nuremberg Erlangen 91058 Germany
| | - Sahar Salehi
- Chair of Biomaterials University of Bayreuth Bayreuth 95447 Germany
| | - Aldo R. Boccaccini
- Institute of Biomaterials University Erlangen‐Nuremberg Erlangen 91058 Germany
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9
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Gong Z, Lei D, Wang C, Yu C, Xia K, Shu J, Ying L, Du J, Wang J, Huang X, Ni L, Wang C, Lin J, Li F, You Z, Liang C. Bioactive Elastic Scaffolds Loaded with Neural Stem Cells Promote Rapid Spinal Cord Regeneration. ACS Biomater Sci Eng 2020; 6:6331-6343. [PMID: 33449647 DOI: 10.1021/acsbiomaterials.0c01057] [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: 12/20/2022]
Abstract
Despite decades of research, spinal cord injury (SCI) still causes irreparable damage to the human body. Key challenges that hinder the regeneration and extension of neurons following SCI must be overcome, including the overexpressed glial scar formation and strong inflammatory responses in lesion tissue. Transplantation of neural stem cells (NSCs) represents a promising therapeutic method due to its beneficial roles like growth factor secretion and anti-inflammation. However, NSCs usually differentiate into astrocytes, which is considered as one potential limitation of current NSC therapy. Herein, we fabricate an elastic poly(sebacoyl diglyceride) (PSeD) scaffold to mimic the mechanical properties of the natural spinal cord. The PSeD scaffold is coated with poly(sebacoyl diglyceride)-isoleucine-lysine-valine-alanine-valine-serine (PSeD-IKVAVS) to create a bioactive interface. The core point of this topic is divided into two parts. First, PSeD is a bioelastomer and its mechanical properties are similar to those of the natural spinal cord. This feature reduces the direct stimulation to the spinal cord tissue by the elastomer and then reduces the immune response or resistance caused by the host spinal cord tissue. Second, the IKVAVS peptide modifies PSeD to create a bioactive interface to support NSC growth and differentiation. In the in vivo study, the number of CD68-positive macrophages decreased in the PSeD-IKVAVS/NSC group compared to that in the SCI group (20% vs 60%). The low inflammation induced by the scaffold was beneficial to NSCs, resulting in increased locomotor recovery, as indicated by the increased Basso-Beattie-Bresnahan score (5, the average score in the PSeD-IKVAVS/NSC group, vs 2, the average score in the SCI group). Based on the above two characteristics, a PSeD-IKVAVS bioelastomer is fabricated, which provides a beneficial and bioactive microenvironment for NSCs after transplantation.
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Affiliation(s)
- Zhe Gong
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, #88 Jie Fang Road, Hangzhou, 310009 Zhejiang, PR China.,Orthopedics Research Institute of Zhejiang University, No. 88, Jiefang Road, Hangzhou 310009, China
| | - Dong Lei
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Belt and Road Joint Laboratory of Advanced fiber and Low-dimension Materials (Donghua University), College of Materials Science and Engineering, Donghua University, 2999 North Renmin Road, Shanghai 201620, China
| | - Chenggui Wang
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, #88 Jie Fang Road, Hangzhou, 310009 Zhejiang, PR China.,Orthopedics Research Institute of Zhejiang University, No. 88, Jiefang Road, Hangzhou 310009, China
| | - Chao Yu
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, #88 Jie Fang Road, Hangzhou, 310009 Zhejiang, PR China.,Orthopedics Research Institute of Zhejiang University, No. 88, Jiefang Road, Hangzhou 310009, China
| | - Kaishun Xia
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, #88 Jie Fang Road, Hangzhou, 310009 Zhejiang, PR China.,Orthopedics Research Institute of Zhejiang University, No. 88, Jiefang Road, Hangzhou 310009, China
| | - Jiawei Shu
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, #88 Jie Fang Road, Hangzhou, 310009 Zhejiang, PR China.,Orthopedics Research Institute of Zhejiang University, No. 88, Jiefang Road, Hangzhou 310009, China
| | - Liwei Ying
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, #88 Jie Fang Road, Hangzhou, 310009 Zhejiang, PR China.,Orthopedics Research Institute of Zhejiang University, No. 88, Jiefang Road, Hangzhou 310009, China
| | - Jiangnan Du
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, #88 Jie Fang Road, Hangzhou, 310009 Zhejiang, PR China.,Orthopedics Research Institute of Zhejiang University, No. 88, Jiefang Road, Hangzhou 310009, China
| | - Jingkai Wang
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, #88 Jie Fang Road, Hangzhou, 310009 Zhejiang, PR China.,Orthopedics Research Institute of Zhejiang University, No. 88, Jiefang Road, Hangzhou 310009, China
| | - Xianpeng Huang
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, #88 Jie Fang Road, Hangzhou, 310009 Zhejiang, PR China.,Orthopedics Research Institute of Zhejiang University, No. 88, Jiefang Road, Hangzhou 310009, China
| | - Licheng Ni
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, #88 Jie Fang Road, Hangzhou, 310009 Zhejiang, PR China.,Orthopedics Research Institute of Zhejiang University, No. 88, Jiefang Road, Hangzhou 310009, China
| | - Cong Wang
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, #88 Jie Fang Road, Hangzhou, 310009 Zhejiang, PR China.,Orthopedics Research Institute of Zhejiang University, No. 88, Jiefang Road, Hangzhou 310009, China
| | - Jingquan Lin
- Department of Neurosurgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, China
| | - Fangcai Li
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, #88 Jie Fang Road, Hangzhou, 310009 Zhejiang, PR China.,Orthopedics Research Institute of Zhejiang University, No. 88, Jiefang Road, Hangzhou 310009, China
| | - Zhengwei You
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Belt and Road Joint Laboratory of Advanced fiber and Low-dimension Materials (Donghua University), College of Materials Science and Engineering, Donghua University, 2999 North Renmin Road, Shanghai 201620, China
| | - Chengzhen Liang
- Department of Orthopedics, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, #88 Jie Fang Road, Hangzhou, 310009 Zhejiang, PR China.,Orthopedics Research Institute of Zhejiang University, No. 88, Jiefang Road, Hangzhou 310009, China
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10
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Xuan H, Hu H, Geng C, Song J, Shen Y, Lei D, Guan Q, Zhao S, You Z. Biofunctionalized chondrogenic shape-memory ternary scaffolds for efficient cell-free cartilage regeneration. Acta Biomater 2020; 105:97-110. [PMID: 31953195 DOI: 10.1016/j.actbio.2020.01.015] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 01/09/2020] [Accepted: 01/10/2020] [Indexed: 10/25/2022]
Abstract
Cartilage defect repair remains a great clinical challenge due to the limited self-regeneration capacity of cartilage tissue. Surgical treatment of injured cartilage is rather difficult due to the narrow space in the articular cavity and irregular defect area. Herein, we designed and fabricated chondrogenic and physiological-temperature-triggered shape-memory ternary scaffolds for cell-free cartilage repair, where the poly (glycerol sebacate) (PGS) networks ensured elasticity and shape recovery, crystallized poly (1,3-propylene sebacate) (PPS) acted as switchable phase, and immobilized bioactive kartogenin (KGN) endowed the scaffolds with chondrogenic capacity. The resultant scaffolds exhibited shape-memory properties with shape-memory fixed ratio of 98% and recovered ratio of 97% at 37°C for PPS/PGS/KGN-100, indicating a good potential for minimally invasive implantation. The scaffolds gradually degraded in Dulbecco's phosphate-buffered saline and released KGN up to 12 weeks in vitro. In addition, the scaffolds promoted chondrogenic differentiation while inhibiting osteogenic differentiation of bone marrow-derived mesenchymal stem cells in a concentration-dependent manner and cartilage regeneration in full-thickness defects of rat femoropatellar groove for 12 weeks. Consequently, the PPS/PGS/KGN-100 scaffolds stimulated the formation of an overlying layer of neocartilage mimicking the characteristic architecture of native articular cartilage even in the absence of exogenous growth factors and seeded cells. This study provides much inspiration for future research on cartilage tissue engineering. STATEMENT OF SIGNIFICANCE: There are two crucial challenges for cartilage defect repair: the lack of self-regeneration capacity of cartilage tissue and difficult scaffold implantation via traditional open surgery due to space-limited joints. Herein, bioactive body-temperature-responsive shape memory scaffolds are designed to simultaneously address the challenges. The scaffolds can be readily implanted by minimally invasive approach and recover by body-temperature of patient. The integration of kartogenin endows scaffolds the bioactivity, leading to the first example of bulk shape-memory scaffolds for cell-free cartilage repair. These characteristics make the scaffolds advantageous for clinical translation. Moreover, our developed material is easy to be functionalized due to the presence of extensive free hydroxyl groups and provides a versatile platform to design diverse functional shape memory biomaterials.
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11
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Yildirimer L, Zhang Q, Kuang S, Cheung CWJ, Chu KA, He Y, Yang M, Zhao X. Engineering three-dimensional microenvironments towards
in vitro
disease models of the central nervous system. Biofabrication 2019; 11:032003. [DOI: 10.1088/1758-5090/ab17aa] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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12
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Sun L, Wang M, Chen S, Sun B, Guo Y, He C, Mo X, Zhu B, You Z. Molecularly engineered metal-based bioactive soft materials - Neuroactive magnesium ion/polymer hybrids. Acta Biomater 2019; 85:310-319. [PMID: 30586648 DOI: 10.1016/j.actbio.2018.12.040] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 12/13/2018] [Accepted: 12/21/2018] [Indexed: 02/07/2023]
Abstract
The development of bioactive soft materials that can guide cell behavior and have biomimetic mechanical properties is an active and challenging topic in regenerative medicine. A common strategy to create a bioactive soft material is the integration of biomacromolecules with polymers. However, limited by their complex structures and sensitivity to temperature and chemicals, it is relatively difficult to maintain the bioactivity of biomacromolecules during their preparation, storage, and application. Here, a new kind of bioactive soft material based on the molecular integration of metal ions and polymers is designed and exemplified by a hybrid of magnesium ion (Mg2+) and poly(glycerol-sebacate-maleate) (PGSM-Mg). Mg2+ was firmly incorporated into PGSM molecules through a complexation interaction as evidenced by X-ray photoelectron spectroscopy (XPS) and Fourier-transform infrared spectroscopy (FTIR). The PGSM matrix provided the soft nature and facile processing of the hybrid, which could serve as an injectable material and be fabricated into elastic porous three-dimensional (3D) scaffolds. The Mg2+ immobilized in the PGSM chain conferred neuroactivity to the resultant hybrid. PGSM-Mg exhibited adequate biodegradability and a sustained release of Mg2+. PGSM-Mg 3D scaffolds promoted the adhesion and proliferation of Schwann cells (SCs) more effectively than poly(lactic-co-glycolic acid) (PLGA) scaffolds. Furthermore, SCs on PGSM-Mg scaffolds expressed significantly more neural specific genes than those on PLGA, PGS, and PGSM, including nerve growth factor (NGF) and neurotrophic factor-3 (NTF3). All these results indicated that Mg2+ immobilized through molecular integration could efficiently regulate the bioactivity of polymers. In view of the wide availability, diverse bioactivity, and high stability of metal ions, the strategy of molecular coupling of metal ions and polymers is expected to be a new general approach to construct bioactive soft materials. STATEMENT OF SIGNIFICANCE: Bioactive soft materials are designed on the basis of the molecular integration of metal ions and polymers. Immobilized metal ions offer a new way to endow bioactivity to polymers. Different from biomolecules such as proteins and genes, metal ions are quite stable and can resist harsh processing conditions. Further, the polymeric matrix provides the soft nature and facile processing of the hybrid. Different from stiff metal-containing inorganic materials, the hybrid is a biomimetic soft material and can be readily processed just like its polymer precursor under mild conditions. In view of the diversity of metal ions and polymers, this strategy is expected to be a new powerful and general approach to construct bioactive soft materials for a wide range of biomedical applications.
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Affiliation(s)
- Lijie Sun
- State Key Laboratory for Modification of Chemical Fiber and Polymer Materials, International Joint Laboratory for Advanced Fiber and Low-dimension Materials, College of Materials Science and Engineering, Donghua University, North Renmin Road 2999, Shanghai 201620, China
| | - Min Wang
- State Key Laboratory for Modification of Chemical Fiber and Polymer Materials, International Joint Laboratory for Advanced Fiber and Low-dimension Materials, College of Materials Science and Engineering, Donghua University, North Renmin Road 2999, Shanghai 201620, China
| | - Shuo Chen
- State Key Laboratory for Modification of Chemical Fiber and Polymer Materials, International Joint Laboratory for Advanced Fiber and Low-dimension Materials, College of Materials Science and Engineering, Donghua University, North Renmin Road 2999, Shanghai 201620, China
| | - Binbin Sun
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, North Renmin Road 2999, Shanghai 201620, China
| | - Yifan Guo
- State Key Laboratory for Modification of Chemical Fiber and Polymer Materials, International Joint Laboratory for Advanced Fiber and Low-dimension Materials, College of Materials Science and Engineering, Donghua University, North Renmin Road 2999, Shanghai 201620, China
| | - Chuanglong He
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, North Renmin Road 2999, Shanghai 201620, China
| | - Xiumei Mo
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, North Renmin Road 2999, Shanghai 201620, China
| | - Bo Zhu
- School of Materials Science & Engineering, Shanghai University, Shanghai 200444, China
| | - Zhengwei You
- State Key Laboratory for Modification of Chemical Fiber and Polymer Materials, International Joint Laboratory for Advanced Fiber and Low-dimension Materials, College of Materials Science and Engineering, Donghua University, North Renmin Road 2999, Shanghai 201620, China.
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Slavko E, Taylor MS. Catalyst-controlled polycondensation of glycerol with diacyl chlorides: linear polyesters from a trifunctional monomer. Chem Sci 2017; 8:7106-7111. [PMID: 29147540 PMCID: PMC5637463 DOI: 10.1039/c7sc01886j] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Accepted: 08/21/2017] [Indexed: 12/20/2022] Open
Abstract
Selective activation of diol groups by a borinic acid catalyst enables the synthesis of strictly linear polyesters from glycerol, a trifunctional monomer.
Diarylborinic acids catalyze the formation of linear polyesters from glycerol, a trifunctional, carbohydrate-based monomer. The selective activation of 1,2-diols over isolated alcohols by the organoboron catalyst results in polymers that are essentially free of branching or cross-linking and possess a high fraction of 1,3-enchained glycerol units, as assessed by 1H and 13C NMR spectroscopy. The ability to generate well-defined polyester architectures from glycerol is significant in light of the numerous applications of such macromolecules, particularly in the biomedical area. Isomerization, post-polymerization functionalization and controlled cross-linking reactions of the obtained linear poly(glycerol esters) are demonstrated.
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Affiliation(s)
- Ekaterina Slavko
- Department of Chemistry , University of Toronto , Toronto , ON M5S 3H6 , Canada .
| | - Mark S Taylor
- Department of Chemistry , University of Toronto , Toronto , ON M5S 3H6 , Canada .
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14
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Yu SB, Baek J, Choi M, Oh Y, Lee HR, Yu SJ, Lee E, Sohn JW, Im SG, Jon S. Polymer Thin Films with Tunable Acetylcholine-like Functionality Enable Long-Term Culture of Primary Hippocampal Neurons. ACS NANO 2016; 10:9909-9918. [PMID: 27792310 DOI: 10.1021/acsnano.6b03527] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In vitro culture systems for primary neurons have served as useful tools for neuroscience research. However, conventional in vitro culture methods are still plagued by challenging problems with respect to applications to neurodegenerative disease models or neuron-based biosensors and neural chips, which commonly require long-term culture of neural cells. These impediments highlight the necessity of developing a platform capable of sustaining neural activity over months. Here, we designed a series of polymeric bilayers composed of poly(glycidyl methacrylate) (pGMA) and poly(2-(dimethylamino)ethyl methacrylate) (pDMAEMA), designated pGMA:pDMAEMA, using initiated chemical vapor deposition (iCVD). Harnessing the surface-growing characteristics of iCVD polymer films, we were able to precisely engraft acetylcholine-like functionalities (tertiary amine and quaternary ammonium) onto cell culture plates. Notably, pGD3, a pGMA:pDMAEMA preparation with the highest surface composition of quaternary ammonium, fostered the most rapid outgrowth of neural cells. Clear contrasts in neural growth and survival between pGD3 and poly-l-lysine (PLL)-coated surfaces became apparent after 30 days in vitro (DIV). Moreover, brain-derived neurotrophic factor level continuously accumulated in pGD3-cultured neurons, reaching a 3-fold increase at 50 DIV. Electrophysiological measurements at 30 DIV revealed that the pGD3 surface not only promoted healthy maturation of hippocampal neurons but also enhanced the function of hippocampal ionotropic glutamate receptors in response to synaptic glutamate release. Neurons cultured long-term on pGD3 also maintained their characteristic depolarization-induced Ca2+ influx functions. Furthermore, primary hippocampal neurons cultured on pGD3 showed long-term survival in a stable state up to 90 days-far longer than neurons on conventional PLL-coated surfaces. Taken together, our findings indicate that a polymer thin film with optimal acetylcholine-like functionality enables a long-term culture and survival of primary neurons.
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Affiliation(s)
- Seungyoon B Yu
- KAIST Institute for the BioCentury, Department of Biological Sciences, ‡KAIST Institute for the NanoCentury, Department of Chemical and Biomolecular Engineering, and §Department of Biological Sciences, Korea Advanced Institute of Science and Technology , 291 Daehak-ro, Daejeon 34141, Republic of Korea
| | - Jieung Baek
- KAIST Institute for the BioCentury, Department of Biological Sciences, ‡KAIST Institute for the NanoCentury, Department of Chemical and Biomolecular Engineering, and §Department of Biological Sciences, Korea Advanced Institute of Science and Technology , 291 Daehak-ro, Daejeon 34141, Republic of Korea
| | - Minsuk Choi
- KAIST Institute for the BioCentury, Department of Biological Sciences, ‡KAIST Institute for the NanoCentury, Department of Chemical and Biomolecular Engineering, and §Department of Biological Sciences, Korea Advanced Institute of Science and Technology , 291 Daehak-ro, Daejeon 34141, Republic of Korea
| | - Youjin Oh
- KAIST Institute for the BioCentury, Department of Biological Sciences, ‡KAIST Institute for the NanoCentury, Department of Chemical and Biomolecular Engineering, and §Department of Biological Sciences, Korea Advanced Institute of Science and Technology , 291 Daehak-ro, Daejeon 34141, Republic of Korea
| | - Hak Rae Lee
- KAIST Institute for the BioCentury, Department of Biological Sciences, ‡KAIST Institute for the NanoCentury, Department of Chemical and Biomolecular Engineering, and §Department of Biological Sciences, Korea Advanced Institute of Science and Technology , 291 Daehak-ro, Daejeon 34141, Republic of Korea
| | - Seung Jung Yu
- KAIST Institute for the BioCentury, Department of Biological Sciences, ‡KAIST Institute for the NanoCentury, Department of Chemical and Biomolecular Engineering, and §Department of Biological Sciences, Korea Advanced Institute of Science and Technology , 291 Daehak-ro, Daejeon 34141, Republic of Korea
| | - Eunjung Lee
- KAIST Institute for the BioCentury, Department of Biological Sciences, ‡KAIST Institute for the NanoCentury, Department of Chemical and Biomolecular Engineering, and §Department of Biological Sciences, Korea Advanced Institute of Science and Technology , 291 Daehak-ro, Daejeon 34141, Republic of Korea
| | - Jong-Woo Sohn
- KAIST Institute for the BioCentury, Department of Biological Sciences, ‡KAIST Institute for the NanoCentury, Department of Chemical and Biomolecular Engineering, and §Department of Biological Sciences, Korea Advanced Institute of Science and Technology , 291 Daehak-ro, Daejeon 34141, Republic of Korea
| | - Sung Gap Im
- KAIST Institute for the BioCentury, Department of Biological Sciences, ‡KAIST Institute for the NanoCentury, Department of Chemical and Biomolecular Engineering, and §Department of Biological Sciences, Korea Advanced Institute of Science and Technology , 291 Daehak-ro, Daejeon 34141, Republic of Korea
| | - Sangyong Jon
- KAIST Institute for the BioCentury, Department of Biological Sciences, ‡KAIST Institute for the NanoCentury, Department of Chemical and Biomolecular Engineering, and §Department of Biological Sciences, Korea Advanced Institute of Science and Technology , 291 Daehak-ro, Daejeon 34141, Republic of Korea
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15
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Yeh YC, Highley CB, Ouyang L, Burdick JA. 3D printing of photocurable poly(glycerol sebacate) elastomers. Biofabrication 2016; 8:045004. [PMID: 27716633 DOI: 10.1088/1758-5090/8/4/045004] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Three-dimensional (3D) printed scaffolds have great potential in biomedicine; however, it is important that we are able to design such scaffolds with a range of diverse properties towards specific applications. Here, we report the extrusion-based 3D printing of biodegradable and photocurable acrylated polyglycerol sebacate (Acr-PGS) to fabricate scaffolds with elastic properties. Two Acr-PGS macromers were synthesized with varied molecular weights and viscosity, which were then blended to obtain photocurable macromer inks with a range of viscosities. The quality of extruded and photocured scaffolds was dependent on the initial ink viscosity, with flow of printed material resulting in a loss of structural resolution or sample breaking observed with too low or too high viscosity inks, respectively. However, scaffolds with high print resolution and up to ten layers were fabricated with an optimal ink viscosity. The mechanical properties of printed scaffolds were dependent on printing density, where the scaffolds with lower printing density possessed lower moduli and failure properties than higher density scaffolds. The 3D printed scaffolds supported the culture of 3T3 fibroblasts and both spreading and proliferation were observed, indicating that 3D printed Acr-PGS scaffolds are cytocompatible. These results demonstrate that Acr-PGS is a promising material for the fabrication of elastomeric scaffolds for biomedical applications.
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Affiliation(s)
- Yi-Cheun Yeh
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA
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