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Chuang EY, Lin YC, Huang YM, Chen CH, Yeh YY, Rethi L, Chou YJ, Jheng PR, Lai JM, Chiang CJ, Wong CC. Biofunctionalized hydrogel composed of genipin-crosslinked gelatin/hyaluronic acid incorporated with lyophilized platelet-rich fibrin for segmental bone defect repair. Carbohydr Polym 2024; 339:122174. [PMID: 38823938 DOI: 10.1016/j.carbpol.2024.122174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 04/07/2024] [Accepted: 04/16/2024] [Indexed: 06/03/2024]
Abstract
Segmental bone defects can arise from trauma, infection, metabolic bone disorders, or tumor removal. Hydrogels have gained attention in the field of bone regeneration due to their unique hydrophilic properties and the ability to customize their physical and chemical characteristics to serve as scaffolds and carriers for growth factors. However, the limited mechanical strength of hydrogels and the rapid release of active substances have hindered their clinical utility and therapeutic effectiveness. With ongoing advancements in material science, the development of injectable and biofunctionalized hydrogels holds great promise for addressing the challenges associated with segmental bone defects. In this study, we incorporated lyophilized platelet-rich fibrin (LPRF), which contains a multitude of growth factors, into a genipin-crosslinked gelatin/hyaluronic acid (GLT/HA-0.5 % GP) hydrogel to create an injectable and biofunctionalized composite material. Our findings demonstrate that this biofunctionalized hydrogel possesses optimal attributes for bone tissue engineering. Furthermore, results obtained from rabbit model with segmental tibial bone defects, indicate that the treatment with this biofunctionalized hydrogel resulted in increased new bone formation, as confirmed by imaging and histological analysis. From a translational perspective, this biofunctionalized hydrogel provides innovative and bioinspired capabilities that have the potential to enhance bone repair and regeneration in future clinical applications.
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Affiliation(s)
- Er-Yuan Chuang
- Graduate Institute of Biomedical Materials and Tissue Engineering, School of Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan; Cell Physiology and Molecular Image Research Center, Taipei Medical University-Wan Fang Hospital, Taipei 11696, Taiwan; Precision Medicine and Translational Cancer Research Center, Taipei Medical University Hospital, Taipei 11031, Taiwan
| | - Yi-Cheng Lin
- Department of Orthopedics, Taipei Medical University Shuang Ho Hospital, New Taipei City 23561, Taiwan; Department of Orthopedics, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - Yu-Min Huang
- Department of Orthopedics, Taipei Medical University Shuang Ho Hospital, New Taipei City 23561, Taiwan; Department of Orthopedics, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - Chih-Hwa Chen
- Graduate Institute of Biomedical Materials and Tissue Engineering, School of Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan; Department of Orthopedics, Taipei Medical University Shuang Ho Hospital, New Taipei City 23561, Taiwan; Taipei Medical University Research Center of Biomedical Devices Prototyping Production, Taipei 11031, Taiwan; School of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan; School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Yi-Yen Yeh
- Department of Orthopedics, Taipei Medical University Shuang Ho Hospital, New Taipei City 23561, Taiwan
| | - Lekha Rethi
- Department of Orthopedics, Taipei Medical University Shuang Ho Hospital, New Taipei City 23561, Taiwan
| | - Yu-Jen Chou
- Department of Mechanical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
| | - Pei-Ru Jheng
- Graduate Institute of Biomedical Materials and Tissue Engineering, School of Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan
| | - Jen-Ming Lai
- Department of Orthopedic Surgery, Woodlands Health, 768024, Singapore
| | - Chang-Jung Chiang
- Department of Orthopedics, Taipei Medical University Shuang Ho Hospital, New Taipei City 23561, Taiwan; Department of Orthopedics, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan; Taipei Medical University Research Center of Biomedical Devices Prototyping Production, Taipei 11031, Taiwan
| | - Chin-Chean Wong
- Department of Orthopedics, Taipei Medical University Shuang Ho Hospital, New Taipei City 23561, Taiwan; Department of Orthopedics, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan; Taipei Medical University Research Center of Biomedical Devices Prototyping Production, Taipei 11031, Taiwan; International PhD Program for Cell Therapy and Regenerative Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan.
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2
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Wang Y, Lv H, Ren S, Zhang J, Liu X, Chen S, Zhai J, Zhou Y. Biological Functions of Macromolecular Protein Hydrogels in Constructing Osteogenic Microenvironment. ACS Biomater Sci Eng 2024. [PMID: 39173130 DOI: 10.1021/acsbiomaterials.4c00910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/24/2024]
Abstract
Irreversible bone defects resulting from trauma, infection, and degenerative illnesses have emerged as a significant health concern. Structurally and functionally controllable hydrogels made by bone tissue engineering (BTE) have become promising biomaterials. Natural proteins are able to establish connections with autologous proteins through unique biologically active regions. Hydrogels based on proteins can simulate the bone microenvironment and regulate the biological behavior of stem cells in the tissue niche, making them candidates for research related to bone regeneration. This article reviews the biological functions of various natural macromolecular proteins (such as collagen, gelatin, fibrin, and silk fibroin) and highlights their special advantages as hydrogels. Then the latest research trends on cross-linking modified macromolecular protein hydrogels with improved mechanical properties and composite hydrogels loaded with exogenous micromolecular proteins have been discussed. Finally, the applications of protein hydrogels, such as 3D printed hydrogels, microspheres, and injectable hydrogels, were introduced, aiming to provide a reference for the repair of clinical bone defects.
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Affiliation(s)
- Yihan Wang
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun 130021, P. R. China
| | - Huixin Lv
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun 130021, P. R. China
| | - Sicong Ren
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun 130021, P. R. China
| | - Jiameng Zhang
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun 130021, P. R. China
| | - Xiuyu Liu
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun 130021, P. R. China
| | - Sheng Chen
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun 130021, P. R. China
| | - Jingjie Zhai
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun 130021, P. R. China
| | - Yanmin Zhou
- Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun 130021, P. R. China
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3
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Huang T, Zeng Y, Li C, Zhou Z, Xu J, Wang L, Yu DG, Wang K. Application and Development of Electrospun Nanofiber Scaffolds for Bone Tissue Engineering. ACS Biomater Sci Eng 2024; 10:4114-4144. [PMID: 38830819 DOI: 10.1021/acsbiomaterials.4c00028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2024]
Abstract
Nanofiber scaffolds have gained significant attention in the field of bone tissue engineering. Electrospinning, a straightforward and efficient technique for producing nanofibers, has been extensively researched. When used in bone tissue engineering scaffolds, electrospun nanofibers with suitable surface properties promote new bone tissue growth and enhance cell adhesion. Recent advancements in electrospinning technology have provided innovative approaches for scaffold fabrication in bone tissue engineering. This review comprehensively examines the utilization of electrospun nanofibers in bone tissue engineering scaffolds and evaluates the relevant literature. The review begins by presenting the fundamental principles and methodologies of electrospinning. It then discusses various materials used in the production of electrospun nanofiber scaffolds for bone tissue engineering, including natural and synthetic polymers, as well as certain inorganic materials. The challenges associated with these materials are also described. The review focuses on novel electrospinning techniques for scaffold construction in bone tissue engineering, such as multilayer nanofibers, multifluid electrospinning, and the integration of electrospinning with other methods. Recent advancements in electrospinning technology have enabled the fabrication of precisely aligned nanofiber scaffolds with nanoscale architectures. These innovative methods also facilitate the fabrication of biomimetic structures, wherein bioactive substances can be incorporated and released in a controlled manner for drug delivery purposes. Moreover, they address issues encountered with traditional electrospun nanofibers, such as mechanical characteristics and biocompatibility. Consequently, the development and implementation of novel electrospinning technologies have revolutionized scaffold fabrication for bone tissue engineering.
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Affiliation(s)
- Tianyue Huang
- School of Materials and Chemistry, University of Shanghai for Science and Technology 516 Jungong Road, Shanghai 200093, China
| | - YuE Zeng
- Department of Neurology, RuiJin Hospital Lu Wan Branch, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Chaofei Li
- Department of General Surgery, RuiJin Hospital Lu Wan Branch, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Zhengqing Zhou
- School of Materials and Chemistry, University of Shanghai for Science and Technology 516 Jungong Road, Shanghai 200093, China
| | - Jie Xu
- School of Materials and Chemistry, University of Shanghai for Science and Technology 516 Jungong Road, Shanghai 200093, China
| | - Lean Wang
- School of Materials and Chemistry, University of Shanghai for Science and Technology 516 Jungong Road, Shanghai 200093, China
| | - Deng-Guang Yu
- School of Materials and Chemistry, University of Shanghai for Science and Technology 516 Jungong Road, Shanghai 200093, China
| | - Ke Wang
- School of Materials and Chemistry, University of Shanghai for Science and Technology 516 Jungong Road, Shanghai 200093, China
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Martínez-Ramos C, Rodríguez Ruiz A, Monleón Pradas M, Gisbert Roca F. Characterization of a Delivery System Based on a Hyaluronic Acid 3D Scaffold and Gelatin Microparticles. Polymers (Basel) 2024; 16:1748. [PMID: 38932096 PMCID: PMC11207266 DOI: 10.3390/polym16121748] [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: 05/27/2024] [Revised: 06/14/2024] [Accepted: 06/18/2024] [Indexed: 06/28/2024] Open
Abstract
The objective of this study was to develop and characterize a novel hyaluronic acid (HA) 3D scaffold integrated with gelatin microparticles for sustained-delivery applications. To achieve this goal, the delivery microparticles were synthesized and thoroughly characterized, focusing on their crosslinking mechanisms (vanillin and genipin), degradation profiles, and release kinetics. Additionally, the cytotoxicity of the system was assessed, and its impact on the cell adhesion and distribution using mouse fibroblasts was examined. The combination of both biomaterials offers a novel platform for the gradual release of various factors encapsulated within the microparticles while simultaneously providing cell protection, support, and controlled factor dispersion due to the HA 3D scaffold matrix. Hence, this system offers a platform for addressing injure repair by continuously releasing specific encapsulated factors for optimal tissue regeneration. Additionally, by leveraging the properties of HA conjugates with small drug molecules, we can enhance the solubility, targeting capabilities, and cellular absorption, as well as prolong the system stability and half-life. As a result, this integrated approach presents a versatile strategy for therapeutic interventions aimed at promoting tissue repair and regeneration.
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Affiliation(s)
- Cristina Martínez-Ramos
- Center for Biomaterials and Tissue Engineering, Universitat Politècnica de València, C. de Vera s/n, 46022 Valencia, Spain; (C.M.-R.); (A.R.R.); (M.M.P.)
- Unitat Predepartamental de Medicina, Universitat Jaume I, 12071 Castellón de la Plana, Spain
| | - Alejandro Rodríguez Ruiz
- Center for Biomaterials and Tissue Engineering, Universitat Politècnica de València, C. de Vera s/n, 46022 Valencia, Spain; (C.M.-R.); (A.R.R.); (M.M.P.)
| | - Manuel Monleón Pradas
- Center for Biomaterials and Tissue Engineering, Universitat Politècnica de València, C. de Vera s/n, 46022 Valencia, Spain; (C.M.-R.); (A.R.R.); (M.M.P.)
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, 28029 Madrid, Spain
| | - Fernando Gisbert Roca
- Center for Biomaterials and Tissue Engineering, Universitat Politècnica de València, C. de Vera s/n, 46022 Valencia, Spain; (C.M.-R.); (A.R.R.); (M.M.P.)
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5
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Taboun A, Jovanovic M, Petrovic M, Stajcic I, Pesic I, Stojanovic DB, Radojevic V. Citric Acid Cross-Linked Gelatin-Based Composites with Improved Microhardness. Polymers (Basel) 2024; 16:1077. [PMID: 38674996 PMCID: PMC11054669 DOI: 10.3390/polym16081077] [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: 03/01/2024] [Revised: 03/28/2024] [Accepted: 04/09/2024] [Indexed: 04/28/2024] Open
Abstract
The aim of this study is to investigate the influence of cross-linking and reinforcements in gelatin on the physico-mechanical properties of obtained composites. The gelatin-based composites cross-linked with citric acid (CA) were prepared: gelatin type B (GB) and β-tricalcium phosphate (β-TCP) and novel hybrid composite GB with β-TCP and hydroxyapatite (HAp) particles, and their structure, thermal, and mechanical properties were compared with pure gelatin B samples. FTIR analysis revealed that no chemical interaction between the reinforcements and gelatin matrix was established during the processing of hybrid composites by the solution casting method, proving the particles had no influence on GB cross-linking. The morphological investigation of hybrid composites revealed that cross-linking with CA improved the dispersion of particles, which further led to an increase in mechanical performance. The microindentation test showed that the hardness value was increased by up to 449%, which shows the high potential of β-TCP and HAp particle reinforcement combined with CA as a cross-linking agent. Furthermore, the reduced modulus of elasticity was increased by up to 288%. Results of the MTT assay on L929 cells have revealed that the hybrid composite GB-TCP-HA-CA was not cytotoxic. These results showed that GB cross-linked with CA and reinforced with different calcium phosphates presents a valuable novel material with potential applications in dentistry.
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Affiliation(s)
- Abdulrraouf Taboun
- Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11120 Belgrade, Serbia; (A.T.); (M.J.); (M.P.); (D.B.S.); (V.R.)
| | - Marija Jovanovic
- Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11120 Belgrade, Serbia; (A.T.); (M.J.); (M.P.); (D.B.S.); (V.R.)
| | - Milos Petrovic
- Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11120 Belgrade, Serbia; (A.T.); (M.J.); (M.P.); (D.B.S.); (V.R.)
| | - Ivana Stajcic
- Department of Physical Chemistry, “Vinča” Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, Mike Petrovića Alasa 12–14, P.O. Box 522, 11001 Belgrade, Serbia
| | - Ivan Pesic
- Center for Microelectronic Technologies, Institute of Chemistry, Technology and Metallurgy—National Institute of the Republic of Serbia, University of Belgrade, Njegoševa 12, 11000 Belgrade, Serbia;
| | - Dusica B. Stojanovic
- Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11120 Belgrade, Serbia; (A.T.); (M.J.); (M.P.); (D.B.S.); (V.R.)
| | - Vesna Radojevic
- Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11120 Belgrade, Serbia; (A.T.); (M.J.); (M.P.); (D.B.S.); (V.R.)
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6
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Sulej J, Piątek-Gołda W, Grąz M, Szałapata K, Waśko P, Janik-Zabrotowicz E, Osińska-Jaroszuk M. Immobilisation of Cellobiose Dehydrogenase and Laccase on Chitosan Particles as a Multi-Enzymatic System for the Synthesis of Lactobionic Acid. J Funct Biomater 2023; 14:383. [PMID: 37504878 PMCID: PMC10381469 DOI: 10.3390/jfb14070383] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 07/04/2023] [Accepted: 07/19/2023] [Indexed: 07/29/2023] Open
Abstract
Lactobionic acid (LBA) is a bioactive compound that has become increasingly popular in medicine in recent years due to its unique properties. This chemical can be formed via the enzymatic oxidation of lactose using fungal oxidoreductive enzymes. This study aimed to intensify the synthesis of LBA using immobilised enzymes (cellobiose dehydrogenase from Phanerochaete chrysosporium (PchCDH) and laccase from Cerrena unicolor (CuLAC)) on chitosan microspheres. We used three different crosslinking agents: genipin, glutaraldehyde, and polyethyleneimine to activate the chitosan. The FTIR and CellDrop techniques were used to characterise the activated microspheres. Quantitative (HPLC) and qualitative (TLC) methods were used to determine the obtained LBA. The results show that the type of activator used influences the efficiency of the binding of the enzyme to the matrix. Furthermore, the amount of LBA formed depends on the type of system used. The use of a system in which one of the enzymes is immobilised on a PEI-activated carrier (PchCDH) and the other is free (CuLAC) proved to be the most optimal, as it yielded almost 100% conversion of lactose to lactobionic acid. Summarising the data obtained the following: lactobionic acid immobilised on chitosan microspheres has great potential for medical applications.
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Affiliation(s)
- Justyna Sulej
- Department of Biochemistry and Biotechnology, Institute of Biological Sciences, Maria Curie-Sklodowska University, 19 Akademicka St., 20-033 Lublin, Poland
| | - Wiktoria Piątek-Gołda
- Department of Biochemistry and Biotechnology, Institute of Biological Sciences, Maria Curie-Sklodowska University, 19 Akademicka St., 20-033 Lublin, Poland
| | - Marcin Grąz
- Department of Biochemistry and Biotechnology, Institute of Biological Sciences, Maria Curie-Sklodowska University, 19 Akademicka St., 20-033 Lublin, Poland
| | - Katarzyna Szałapata
- Department of Biochemistry and Biotechnology, Institute of Biological Sciences, Maria Curie-Sklodowska University, 19 Akademicka St., 20-033 Lublin, Poland
| | - Piotr Waśko
- Department of Plant Physiology and Biophysics, Institute of Biological Sciences, Maria Curie-Sklodowska University, 19 Akademicka St., 20-033 Lublin, Poland
- Core Facility of Biospectroscopy, Institute of Biological Sciences, Maria Curie-Sklodowska University, 19 Akademicka St., 20-033 Lublin, Poland
| | - Ewa Janik-Zabrotowicz
- Core Facility of Biospectroscopy, Institute of Biological Sciences, Maria Curie-Sklodowska University, 19 Akademicka St., 20-033 Lublin, Poland
- Department of Cell Biology, Institute of Biological Sciences, Maria Curie-Sklodowska University, 19 Akademicka St., 20-033 Lublin, Poland
| | - Monika Osińska-Jaroszuk
- Department of Biochemistry and Biotechnology, Institute of Biological Sciences, Maria Curie-Sklodowska University, 19 Akademicka St., 20-033 Lublin, Poland
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Li X, Li C, Su M, Zhong X, Xing Y, Shan Z, Chen S, Liu X, Wu X, Liu Q, Li Y, Wu S, Chen Z. Optimizing the biodegradability and osteogenesis of biogenic collagen membrane via fluoride-modified polymer-induced liquid precursor process. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2023; 24:2186690. [PMID: 36926201 PMCID: PMC10013244 DOI: 10.1080/14686996.2023.2186690] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 02/12/2023] [Accepted: 02/28/2023] [Indexed: 06/18/2023]
Abstract
Biogenic collagen membranes (BCM) have been widely used in guided bone regeneration (GBR) owing to their biodegradability during tissue integration. However, their relatively high degradation rate and lack of pro-osteogenic properties limit their clinical outcomes. It is of great importance to endow BCM with tailored degradation as well as pro-osteogenic properties. In this study, a fluoride-modified polymer-induced liquid precursor (PILP) based biomineralization strategy was used to convert the collagen membrane from an organic phase to an apatite-based inorganic phase, thus achieving enhanced anti-degradation performance as well as osteogenesis. As a result, three phases of collagen membranes were prepared. The original BCM in the organic phase induced the mildest inflammatory response and was mostly degraded after 4 weeks. The organic-inorganic mixture phase of the collagen membrane evoked a prominent inflammatory response owing to the fluoride-containing amorphous calcium phosphate (F-ACP) nanoparticles, resulting in active angiogenesis and fibrous encapsulation, whereas the inorganic phase induced a mild inflammatory response and degraded the least owing to the transition of F-ACP particles into calcium phosphate with high crystallinity. Effective control of ACP is key to building novel apatite-based barrier membranes. The current results may pave the way for the development of advanced apatite-based membranes with enhanced barrier performances.
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Affiliation(s)
- Xiyan Li
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Chuangji Li
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Mengxi Su
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Xinyi Zhong
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Yihan Xing
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Zhengjie Shan
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Shoucheng Chen
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Xingchen Liu
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Xiayi Wu
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Quan Liu
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Ye Li
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Shiyu Wu
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Zhuofan Chen
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
- Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
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8
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Synthesis and characterization of novel Spirulina protein isolate (SPI)-based hydrogels through dual-crosslinking with genipin/Zn2+. Food Res Int 2022; 162:112107. [DOI: 10.1016/j.foodres.2022.112107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 10/25/2022] [Accepted: 10/28/2022] [Indexed: 11/13/2022]
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9
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Ferreira MJS, Mancini FE, Humphreys PA, Ogene L, Buckley M, Domingos MAN, Kimber SJ. Pluripotent stem cells for skeletal tissue engineering. Crit Rev Biotechnol 2022; 42:774-793. [PMID: 34488516 DOI: 10.1080/07388551.2021.1968785] [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: 12/17/2022]
Abstract
Here, we review the use of human pluripotent stem cells for skeletal tissue engineering. A number of approaches have been used for generating cartilage and bone from both human embryonic stem cells and induced pluripotent stem cells. These range from protocols relying on intrinsic cell interactions and signals from co-cultured cells to those attempting to recapitulate the series of steps occurring during mammalian skeletal development. The importance of generating authentic tissues rather than just differentiated cells is emphasized and enabling technologies for doing this are reported. We also review the different methods for characterization of skeletal cells and constructs at the tissue and single-cell level, and indicate newer resources not yet fully utilized in this field. There have been many challenges in this research area but the technologies to overcome these are beginning to appear, often adopted from related fields. This makes it more likely that cost-effective and efficacious human pluripotent stem cell-engineered constructs may become available for skeletal repair in the near future.
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Affiliation(s)
- Miguel J S Ferreira
- Department of Mechanical, Aerospace and Civil Engineering, School of Engineering, Faculty of Science and Engineering & Henry Royce Institute, The University of Manchester, Manchester, UK
| | - Fabrizio E Mancini
- Division of Cell Matrix Biology and Regenerative Medicine, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK
| | - Paul A Humphreys
- Department of Mechanical, Aerospace and Civil Engineering, School of Engineering, Faculty of Science and Engineering & Henry Royce Institute, The University of Manchester, Manchester, UK
- Division of Cell Matrix Biology and Regenerative Medicine, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK
| | - Leona Ogene
- Division of Cell Matrix Biology and Regenerative Medicine, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK
| | - Michael Buckley
- Manchester Institute of Biotechnology, The University of Manchester, Manchester, UK
| | - Marco A N Domingos
- Department of Mechanical, Aerospace and Civil Engineering, School of Engineering, Faculty of Science and Engineering & Henry Royce Institute, The University of Manchester, Manchester, UK
| | - Susan J Kimber
- Division of Cell Matrix Biology and Regenerative Medicine, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, UK
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10
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Sulaiman SB, Abdul Rani RB, Mohamad Yahaya NHB, Tabata Y, Hiraoka Y, Seet WT, Ng MH. Physical and natural cross-linking approaches on 3D gelatin microspheres for cartilage regeneration. Tissue Eng Part C Methods 2022; 28:557-569. [PMID: 35615885 DOI: 10.1089/ten.tec.2022.0073] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
The use of gelatin microspheres (GM) as a cell carrier has been extensively researched. One of its limitation is that it dissolves rapidly in aqueous settings, precluding its use for long-term cell propagation. This circumstance necessitates the use of cross-linking agents to circumvent the constraint. Thus, the current study examines two different methods of cross-linking and their effect on the microsphere's '"physicochemical and cartilage tissue regeneration capacity. Crosslinking was accomplished by physical [Dehydrothermal (DHT)] and natural (Genipin) cross-linking of the 3D gelatin microspheres (GM). We begin by comparing the microstructures of the scaffolds and their long-term resistance to degradation under physiological conditions (in isotonic solution, at 37 °C, pH = 7.4). Infrared spectroscopy indicated that the gelatin structure was preserved after the cross-linking treatments. The cross-linked GM" 'demonstrated good cell adhesion, viability, proliferation, and widespread 3D scaffold colonization when seeded with human bone marrow mesenchymal stem cells (BMSCs). Additionally, the cross-linked microspheres enhanced chondrogenesis, as demonstrated by the data. It was discovered that cross-linked GM increased the expression of cartilage-related genes and the biosynthesis of a glycosaminoglycan-positive matrix as compared to non-crosslinked GM. In comparison, DHT-crosslinked results were significantly enhanced. To summarize, DHT treatment was found to be a superior approach for cross-linking the GM in order to promote better cartilage tissue regeneration.
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Affiliation(s)
- Shamsul Bin Sulaiman
- Universiti Kebangsaan Malaysia, 61775, Centre for Tissue Engineering and Regenerative Medicine (CTERM), Bangi, Selangor, Malaysia;
| | - Rizal Bin Abdul Rani
- Universiti Kebangsaan Malaysia, 61775, Orthopedic & Traumatology, Bangi, Selangor, Malaysia;
| | | | - Yasuhiko Tabata
- Institute for Frontier Medical Sciences, Dept of Biomaterials, 53 Shogoinkawara-cho, Sakyo-ku, Kyoto, Kyoto, Japan, 6068507;
| | | | - Wan Tai Seet
- UKM, 61775, Centre for Tissue Engineering and Regenerative Medicine, 12th Floor, Clinical Block, Jalan Yaacob Latif, Cheras, Kuala Lumpur, Malaysia, 56000;
| | - Min Hwei Ng
- Universiti Kebangsaan Malaysia, 61775, Tissue Engineering Centre, 12th Floor, Clinical Block, Jalan Yaacob Latif, Cheras, Kuala Lumpur, Federal Territory, Malaysia, 56000.,Universiti Kebangsaan Malaysia Medical Centre, 12th Floor, Clinical Block, Jalan Yaacob Latif, 12th Floor, Clinical Block, Jalan Yaacob Latif, Malaysia;
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11
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Shi M, Gao Y, Lee L, Song T, Zhou J, Yan L, Li Y. Adaptive Gelatin Microspheres Enhanced Stem Cell Delivery and Integration With Diabetic Wounds to Activate Skin Tissue Regeneration. Front Bioeng Biotechnol 2022; 10:813805. [PMID: 35433645 PMCID: PMC9011108 DOI: 10.3389/fbioe.2022.813805] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 02/16/2022] [Indexed: 12/18/2022] Open
Abstract
The delayed and complicated diabetic wound healing raises clinical and social concerns. The application of stem cells along with hydrogels is an attractive therapeutic approach. However, low cell retention and integration hindered the performance. Herein, gelatin microspheres were fabricated for local delivery of adipose-derived stem cells (from rats, rADSCs), and the effect of rADSCs with microspheres on diabetic wound healing was examined. Uniform, well-dispersed microspheres were fabricated using the microfluidic technique. Due to geometry differences, the proteinase degradation rate for microspheres was four times that of the bulk hydrogel. The obtained gelatin microspheres supported cell's adhesion and proliferation and provided a suitable microenvironment for rADSC survival. For in vivo animal tests, rADSCs were labeled with CM-Dil for tracking purposes. Microspheres were well embedded in the regenerated tissue and demonstrated good biocompatibility and an adaptive biodegradation rate. Histological examination revealed rADSC-loaded gelatin microspheres that significantly accelerated wound healing via promoting M2 macrophage polarization, collagen deposition, angiogenesis associated with peripheral nerve recovery, and hair follicle formation. Notably, the relative fluorescence intensity around the hair follicle was 17-fold higher than that of the blank group, indicating rADSC participated in the healing process via exosomes. Taken together, the rADSC-laden gelatin microspheres provided a promising strategy for local stem cell delivery to improve diabetic wound healing.
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Affiliation(s)
- Ming Shi
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument, School of Biomedical Engineering, Shenzhen Campus of Sun Yat-sen University, Shenzhen, China
- Guangdong Provincial Engineering and Technology Center of Advanced and Portable Medical Devices, Sun Yat-sen University, Guangzhou, China
- Department of Scientific Research Center, The Seventh Affiliated Hospital, Sun Yat-Sen University, Shenzhen, China
| | - Yunfen Gao
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument, School of Biomedical Engineering, Shenzhen Campus of Sun Yat-sen University, Shenzhen, China
- Guangdong Provincial Engineering and Technology Center of Advanced and Portable Medical Devices, Sun Yat-sen University, Guangzhou, China
| | - Lim Lee
- Department of Plastic and Cosmetic Surgery, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Ting Song
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument, School of Biomedical Engineering, Shenzhen Campus of Sun Yat-sen University, Shenzhen, China
- Guangdong Provincial Engineering and Technology Center of Advanced and Portable Medical Devices, Sun Yat-sen University, Guangzhou, China
| | - Jianhua Zhou
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument, School of Biomedical Engineering, Shenzhen Campus of Sun Yat-sen University, Shenzhen, China
- Guangdong Provincial Engineering and Technology Center of Advanced and Portable Medical Devices, Sun Yat-sen University, Guangzhou, China
| | - Ling Yan
- Department of Plastic and Cosmetic Surgery, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yan Li
- Guangdong Provincial Key Laboratory of Sensor Technology and Biomedical Instrument, School of Biomedical Engineering, Shenzhen Campus of Sun Yat-sen University, Shenzhen, China
- Guangdong Provincial Engineering and Technology Center of Advanced and Portable Medical Devices, Sun Yat-sen University, Guangzhou, China
- *Correspondence: Yan Li,
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12
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Teimouri S, Kasapis S, Dokouhaki M. Diffusional characteristics of food protein-based materials as nutraceutical delivery systems: A review. Trends Food Sci Technol 2022. [DOI: 10.1016/j.tifs.2022.02.025] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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13
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Nweke CE, Stegemann JP. Fabrication and characterization of osteogenic function of progenitor cell-laden gelatin microcarriers. J Biomed Mater Res B Appl Biomater 2021; 110:1265-1278. [PMID: 34918466 DOI: 10.1002/jbm.b.34998] [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: 07/23/2021] [Revised: 11/29/2021] [Accepted: 12/05/2021] [Indexed: 11/11/2022]
Abstract
Biomaterial-based bone regeneration strategies often include a cellular component to accelerate healing. Modular approaches have the potential for minimally-invasive delivery and the ability to conformally fill complex defects. In this study, spherical gelatin microparticles were fabricated via water-in-oil emulsification and were subsequently crosslinked with genipin. Microparticle diameter depended on impeller geometry, and increased stirring rates consistently produced smaller particles with narrower size distributions. Increasing the concentration of gelatin resulted in larger particles with a broader size distribution. Viscoelastic characterization showed that increased gelatin concentration produced stiffer matrices, though the mechanical properties at lower gelatin concentration were more stable across strain rate. Microparticles of 6.0% wt/vol gelatin were then applied as microcarriers for packed-bed culture of human mesenchymal stromal cells (MSC) at seeding densities of 5.0 × 103 , 2.5 × 104 , or 5.0 × 104 cells/cm2 of surface area, in either control or osteogenic medium. Cell viability was uniformly high (>90%) across seeding densities over 22 days in culture. MSC number stayed approximately constant in the 5.0 × 103 and 2.5 × 104 cells/cm2 samples, while it dropped over time at 5.0 × 104 cells/cm2 . Alkaline phosphatase activity was significantly upregulated in osteogenic conditions relative to controls at day 15, and absolute calcium deposition was strongly induced by days 15 and 22. However, calcium deposition per cell was highest in the lowest cell density, suggesting an inhibitory effect of high cell numbers. These results show that genipin-crosslinked gelatin microcarriers can be reproducibly fabricated and used as microcarriers for progenitor cells, which may have utility in treating large and complex bone defects.
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Affiliation(s)
- Chukwuma E Nweke
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan, USA
| | - Jan P Stegemann
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan, USA
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Walters B, Turner PA, Rolauffs B, Hart ML, Stegemann JP. Controlled Growth Factor Delivery and Cyclic Stretch Induces a Smooth Muscle Cell-like Phenotype in Adipose-Derived Stem Cells. Cells 2021; 10:cells10113123. [PMID: 34831345 PMCID: PMC8624888 DOI: 10.3390/cells10113123] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 10/29/2021] [Accepted: 11/09/2021] [Indexed: 01/02/2023] Open
Abstract
Adipose-derived stem cells (ASCs) are an abundant and easily accessible multipotent stem cell source with potential application in smooth muscle regeneration strategies. In 3D collagen hydrogels, we investigated whether sustained release of growth factors (GF) PDGF-AB and TGF-β1 from GF-loaded microspheres could induce a smooth muscle cell (SMC) phenotype in ASCs, and if the addition of uniaxial cyclic stretch could enhance the differentiation level. This study demonstrated that the combination of cyclic stretch and GF release over time from loaded microspheres potentiated the differentiation of ASCs, as quantified by protein expression of early to late SMC differentiation markers (SMA, TGLN and smooth muscle MHC). The delivery of GFs via microspheres produced large ASCs with a spindle-shaped, elongated SMC-like morphology. Cyclic strain produced the largest, longest, and most spindle-shaped cells regardless of the presence or absence of growth factors or the growth factor delivery method. Protein expression and cell morphology data confirmed that the sustained release of GFs from GF-loaded microspheres can be used to promote the differentiation of ASCs into SMCs and that the addition of uniaxial cyclic stretch significantly enhances the differentiation level, as quantified by intermediate and late SMC markers and a SMC-like elongated cell morphology.
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Affiliation(s)
- Brandan Walters
- Department of Biomedical Engineering, University of Michigan, 1107 Carl A. Gerstacker Building, 2200 Bonisteel Blvd, Ann Arbor, MI 48109, USA; (B.W.); (P.A.T.)
| | - Paul A. Turner
- Department of Biomedical Engineering, University of Michigan, 1107 Carl A. Gerstacker Building, 2200 Bonisteel Blvd, Ann Arbor, MI 48109, USA; (B.W.); (P.A.T.)
| | - Bernd Rolauffs
- G.E.R.N. Center for Tissue Replacement, Regeneration & Neogenesis, Department of Orthopedics and Trauma Surgery, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, Engesserstraße 4, 79108 Freiburg, Germany;
| | - Melanie L. Hart
- G.E.R.N. Center for Tissue Replacement, Regeneration & Neogenesis, Department of Orthopedics and Trauma Surgery, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, Engesserstraße 4, 79108 Freiburg, Germany;
- Correspondence: (M.L.H.); (J.P.S.); Tel.: +49-(761)-270-26102 (M.L.H.); +001-(734)-764-8313 (J.P.S.)
| | - Jan P. Stegemann
- Department of Biomedical Engineering, University of Michigan, 1107 Carl A. Gerstacker Building, 2200 Bonisteel Blvd, Ann Arbor, MI 48109, USA; (B.W.); (P.A.T.)
- Correspondence: (M.L.H.); (J.P.S.); Tel.: +49-(761)-270-26102 (M.L.H.); +001-(734)-764-8313 (J.P.S.)
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15
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Park S, Jung S, Choi M, Lee M, Choi B, Koh WG, Lee S, Hong J. Gelatin MAGIC powder as nutrient-delivering 3D spacer for growing cell sheets into cost-effective cultured meat. Biomaterials 2021; 278:121155. [PMID: 34607049 DOI: 10.1016/j.biomaterials.2021.121155] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Revised: 09/12/2021] [Accepted: 09/23/2021] [Indexed: 12/24/2022]
Abstract
Cell cultured meat is artificial meat obtained by culturing animal-derived cells in vitro, and received significant attention as an emerging future protein source. The mass proliferation of cells in the cultured meat production is a strenuous process that delays the commercialization of cultured meat because it requires an expensive culture medium for a long period. Herein, we report on a strategy to develop advanced cultured meat using fish gelatin mass growth-inducing culture (MAGIC) powder and myoblast sheets. The MAGIC powder had an edible gelatin microsphere (GMS) structure and exhibited different morphologies and bonding activities depending on the degree of crosslinking. We analyzed the loading and release of nutrients for each GMS with diverse surface properties, and selected the most effective GMSs to improve the proliferation of myoblasts under serum-reduced medium. The GMSs exerted four significant functions in the culture of myoblast sheets, and consequently produced cost- and time-effective meat-like cell sheets than the conventional method. We prepared cultured meats composed of cell sheet containing GMSs and evaluated the quality of the cultured meat by comparing the tissue properties with soy meat and chicken breast.
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Affiliation(s)
- Sohyeon Park
- Department of Chemical & Biomolecular Engineering, College of Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Sungwon Jung
- Department of Chemical & Biomolecular Engineering, College of Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Moonhyun Choi
- Department of Chemical & Biomolecular Engineering, College of Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Milae Lee
- Department of Chemical & Biomolecular Engineering, College of Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Bumgyu Choi
- Department of Chemical & Biomolecular Engineering, College of Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Won-Gun Koh
- Department of Chemical & Biomolecular Engineering, College of Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Sangmin Lee
- School of Mechanical Engineering, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul, 06974, Republic of Korea.
| | - Jinkee Hong
- Department of Chemical & Biomolecular Engineering, College of Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea.
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16
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Mabrouk MT, Zhang H, Zidan AA, Kilian HI, Huang WC, Jahagirdar D, Ortega J, Xia J, Lovell JF. Cross-linked Histone as a Nanocarrier for Gut Delivery of Hydrophobic Cargos. ACS APPLIED MATERIALS & INTERFACES 2021; 13:26712-26720. [PMID: 34082523 DOI: 10.1021/acsami.1c04134] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Delivering hydrophobic molecules through the intestine can be challenging due to limited cargo solubility and the harsh biochemical environment of the stomach. Here, we show that a protein-based nanocarrier system based on the abundant protein histone and the natural cross-linker genipin can deliver hydrophobic cargos, such as dyes and therapeutic molecules, through the gastrointestinal tract. Using hydrophobic near-infrared dyes as model cargos, a panel of potential protein carriers was screened, and histone was identified as the one with the best loading capability. The resulting nanoparticles had a positive ζ potential and were mucoadhesive. Cross-linking of the amine-rich nanocarrier with genipin was particularly effective relative to other proteins and increased the stability of the system during incubation with pepsin. Cross-linking was required for successful delivery of a hydrophobic dye to the colon of mice after oral gavage. To assess the platform for therapeutic delivery, another hydrophobic model compound, curcumin, was delivered using cross-linked histone nanoparticles in a murine colitis model and significantly alleviated the disease. Taken together, these results demonstrate that histone is a cationic, mucoadhesive, and cross-linkable protein nanocarrier that can be considered for oral delivery.
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Affiliation(s)
- Moustafa T Mabrouk
- Department of Biomedical Engineering, University at Buffalo, State University of New York, Buffalo, New York 14260, United States
| | - Huijuan Zhang
- Department of Biomedical Engineering, University at Buffalo, State University of New York, Buffalo, New York 14260, United States
| | - Asmaa A Zidan
- Health and Biomedical Innovation, Clinical and Health Sciences, University of South Australia, Adelaide, South Australia 5000, Australia
- Department of Medical Histology and Cell Biology, Faculty of Medicine, Alexandria University, Alexandria 21561, Egypt
| | - Hailey I Kilian
- Department of Biomedical Engineering, University at Buffalo, State University of New York, Buffalo, New York 14260, United States
| | - Wei-Chiao Huang
- Department of Biomedical Engineering, University at Buffalo, State University of New York, Buffalo, New York 14260, United States
| | - Dushyant Jahagirdar
- Department of Anatomy and Cell Biology, McGill University, Montreal, Quebec H3A 0C7, Canada
| | - Joaquin Ortega
- Department of Anatomy and Cell Biology, McGill University, Montreal, Quebec H3A 0C7, Canada
| | - Jun Xia
- Department of Biomedical Engineering, University at Buffalo, State University of New York, Buffalo, New York 14260, United States
| | - Jonathan F Lovell
- Department of Biomedical Engineering, University at Buffalo, State University of New York, Buffalo, New York 14260, United States
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17
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Ehrmann A. Non-Toxic Crosslinking of Electrospun Gelatin Nanofibers for Tissue Engineering and Biomedicine-A Review. Polymers (Basel) 2021; 13:1973. [PMID: 34203958 PMCID: PMC8232702 DOI: 10.3390/polym13121973] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 06/12/2021] [Accepted: 06/13/2021] [Indexed: 02/04/2023] Open
Abstract
Electrospinning can be used to prepare nanofiber mats from diverse polymers, polymer blends, or polymers doped with other materials. Amongst this broad range of usable materials, biopolymers play an important role in biotechnological, biomedical, and other applications. However, several of them are water-soluble, necessitating a crosslinking step after electrospinning. While crosslinking with glutaraldehyde or other toxic chemicals is regularly reported in the literature, here, we concentrate on methods applying non-toxic or low-toxic chemicals, and enzymatic as well as physical methods. Making gelatin nanofibers non-water soluble by electrospinning them from a blend with non-water soluble polymers is another method described here. These possibilities are described together with the resulting physical properties, such as swelling behavior, mechanical strength, nanofiber morphology, or cell growth and proliferation on the crosslinked nanofiber mats. For most of these non-toxic crosslinking methods, the degree of crosslinking was found to be lower than for crosslinking with glutaraldehyde and other common toxic chemicals.
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Affiliation(s)
- Andrea Ehrmann
- Working Group Textile Technologies, Faculty of Engineering and Mathematics, Bielefeld University of Applied Sciences, 33619 Bielefeld, Germany
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Rajabnejadkeleshteri A, Basiri H, Mohseni SS, Farokhi M, Mehrizi AA, Moztarzadeh F. Preparation of microfluidic-based pectin microparticles loaded carbon dots conjugated with BMP-2 embedded in gelatin-elastin-hyaluronic acid hydrogel scaffold for bone tissue engineering application. Int J Biol Macromol 2021; 184:29-41. [PMID: 34048836 DOI: 10.1016/j.ijbiomac.2021.05.148] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 05/21/2021] [Accepted: 05/21/2021] [Indexed: 10/21/2022]
Abstract
The controlled delivery of the bone morphogenetic protein-2 (BMP-2) with tracking ability would overcome most of the side effects linked to the burst release and uncontrolled delivery of this growth factor for bone regeneration. Herein, BMP-2-conjugated carbon dots (CDs) was used as noninvasive detection platforms to deliver BMP-2 for therapeutic applications where osteogenesis and bioimaging are both required. With this in mind, the present work aimed to develop a controlled BMP-2-CDs release system using composite scaffolds containing BMP-2-CDs loaded pectin microparticles, which had been optimized for bone regeneration. By using microfluidic approach, we encapsulated BMP-2-CDs in pectin microparticles with narrow size distribution and then incorporated into composite scaffolds composed of gelatin, elastin, and hyaluronic acid. The BMP-2-CDs was released from the composite scaffolds in a sustained fashion for up to 21 days exhibited a high controlled delivery capacity. When tested in vitro with MG-63 cells, these extraction mediums showed the intercellular uptake of BMP-2-CDs and enhanced biological properties and pro-osteogenic effect. By utilizing the pectin microparticles carrying BMP-2-CDs as promising bioimaging agents for growth factor delivery and by tuning the composition of the scaffolds, this platform has immense potential in the field of bone tissue regeneration.
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Affiliation(s)
- Alireza Rajabnejadkeleshteri
- Biomaterials Group, Faculty of Biomedical Engineering (Center of Excellence), Amirkabir University of Technology, Tehran, Iran
| | - Hamideh Basiri
- Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
| | - Seyed Sepehr Mohseni
- Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
| | - Mehdi Farokhi
- National Cell Bank of Iran, Pasteur Institute of Iran, Tehran, Iran
| | - Ali Abouei Mehrizi
- Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
| | - Fathollah Moztarzadeh
- Biomaterials Group, Faculty of Biomedical Engineering (Center of Excellence), Amirkabir University of Technology, Tehran, Iran.
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Abdollahi Baghban S, Ebrahimi M, Bagheri-Khoulenjani S, Khorasani M. A highly efficient microwave-assisted synthesis of an LED-curable methacrylated gelatin for bio applications. RSC Adv 2021; 11:14996-15009. [PMID: 35424032 PMCID: PMC8697925 DOI: 10.1039/d1ra01269j] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 04/10/2021] [Indexed: 12/14/2022] Open
Abstract
This study deals with the development of an LED-curable methacrylated gelatin (GelMA) synthesis via microwave (MW) irradiation with a reaction and purification time-, energy-, and methacrylation reagent-saving approach. To investigate the efficiency of MW irradiation in GelMA synthesis, characteristics of the GelMAs prepared by using glycidyl methacrylate (GMA) or methacrylic anhydride (MA) via the MW-assisted (MWA) method were compared comprehensively with those synthesized via the conventional heating method. Moreover, MWA reaction conditions were optimized in terms of methacrylation reagent concentrations (C), reaction time (t), and MW power (P). Characterization and assessment of the GelMAs were conducted with 1H NMR, FT-IR, and Raman spectroscopy along with physical-mechanical, thermal, and hydrophilicity analysis. The results demonstrated that the MWA synthesized GMA-GelMA hydrogels were possessed of increased methacrylation degree (MD), gel fraction (GF), tensile strength (TS), elongation at break (EB), glass transition temperature (T g), and water contact angle (WCA) as well as decreased swelling degree (SD) values in comparison to those of MA-GelMA and GMA-GelMA hydrogels prepared via the MWA and conventional method, respectively. Enhanced properties of the MWA synthesized GMA-hydrogels suggested an effective methacryloyl conjugation leading to a greater amount of covalent crosslinking density justified by the dipolar moment calculations. Optimal GMA C, t, P, and purification time for a highly crosslinked GelMA hydrogel (MD: 96.1%, GF: 98.3%, SD: 10.11%, TS: 6.7 MPa, EB: 175.2%, T g: 75.34 °C, and WCA: 72.22°) were found to be a 5 times molar excess over the primary amine groups of gelatin, 5 min, 500 W, and 24 h, respectively. Thus, the optimized MW conditions offer a promising green method to prepare GelMAs for bio applications.
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Affiliation(s)
- Sahar Abdollahi Baghban
- Department of Polymer and Color Engineering, Amirkabir University of Technology 350 Hafez Ave. 15875-4413 Tehran Iran
| | - Morteza Ebrahimi
- Department of Polymer and Color Engineering, Amirkabir University of Technology 350 Hafez Ave. 15875-4413 Tehran Iran
| | - Shadab Bagheri-Khoulenjani
- Department of Polymer and Color Engineering, Amirkabir University of Technology 350 Hafez Ave. 15875-4413 Tehran Iran
| | - Manoucher Khorasani
- Department of Polymer and Color Engineering, Amirkabir University of Technology 350 Hafez Ave. 15875-4413 Tehran Iran
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Abstract
The encapsulation of growth factors is an important component of tissue engineer- ing. Using microspheres is a convenient approach in which the dose of factors can be regulated by increasing or decreasing the number of encapsulated microspheres. Moreover, microspheres offer the possibility of delivering the growth factors directly to the target site. However, the fabrication of microspheres by traditional emulsion methods is largely variable due to the experimental procedure. We have developed a protocol using a commercially available microfluidic system that allows formation of tunable particle-size droplets loaded with growth factors. The methodology includes a guide for preparing an alginate-growth factors solution followed by the specific set-up needed for using the microfluidic system to form the microspheres. The pro- cedure also includes a unique post-crosslinking process without pH modification. These methods allow the preservation of integrity and bioactivity of the growth factors tested (BMP-6 and TGFβ -3) and their subsequent sustained delivery.•The protocol can be tuned to form particles of various sizes.•The gentle post-crosslinking process allows conformational integrity of various bioactive molecules.
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21
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Dong Z, Meng X, Yang W, Zhang J, Sun P, Zhang H, Fang X, Wang DA, Fan C. Progress of gelatin-based microspheres (GMSs) as delivery vehicles of drug and cell. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 122:111949. [PMID: 33641932 DOI: 10.1016/j.msec.2021.111949] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 01/30/2021] [Accepted: 02/02/2021] [Indexed: 12/13/2022]
Abstract
Gelatin has various attractive features as biomedical materials, for instance, biocompatibility, low immunogenicity, biodegradability, and ease of manipulation. In recent years, various gelatin-based microspheres (GMSs) have been fabricated with innovative technologies to serve as sustained delivery vehicles of drugs and genetic materials as well as beneficial bacteria. Moreover, GMSs have exhibited promising potentials to act as both cell carriers and 3D scaffold components in tissue engineering and regenerative medicine, which not only exhibit excellent injectability but also could be integrated into a macroscale construct with the laden cells. Herein, we aim to thoroughly summarize the recent progress in the preparations and biomedical applications of GMSs and then to point out the research direction in future. First, various methods for the fabrication of GMSs will be described. Second, the recent use of GMSs in tumor embolization and in the delivery of cells, drugs, and genetic material as well as bacteria will be presented. Finally, several key factors that may enhance the improvement of GMSs were suggested as delivery vehicles.
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Affiliation(s)
- Zuoxiang Dong
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao Medical College, Qingdao University, Qingdao 266000, Shandong, China; Department of Neurosurgery, The Affiliated Hospital of Qingdao University, Qingdao 266000, Shandong, China
| | - Xinyue Meng
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao Medical College, Qingdao University, Qingdao 266000, Shandong, China
| | - Wei Yang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao Medical College, Qingdao University, Qingdao 266000, Shandong, China
| | - Jinfeng Zhang
- Department of Surgery, Songshan Hospital of Qingdao University, Qingdao 266021, Shandong, China
| | - Peng Sun
- Department of Neurosurgery, The Affiliated Hospital of Qingdao University, Qingdao 266000, Shandong, China
| | - Huawei Zhang
- Department of Neurosurgery, The Affiliated Hospital of Qingdao University, Qingdao 266000, Shandong, China
| | - Xing Fang
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, MS 39216, USA
| | - Dong-An Wang
- Department of Biomedical Engineering, City University of Hong Kong, Kowloon, Hong Kong Special Administrative Region; Shenzhen Research Institute, City University of Hong Kong, Shenzhen Hi-tech Industrial Park, Shenzhen, Guangdong 518057, China; Karolinska Institute Ming Wai Lau Centre for Reparative Medicine, HKSTP, Sha Tin, Hong Kong Special Administrative Region.
| | - Changjiang Fan
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao Medical College, Qingdao University, Qingdao 266000, Shandong, China.
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22
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Li Q, Zhang H, Pan J, Teng B, Zeng Z, Chen Y, Hei Y, Zhang S, Wei S, Sun Y. Tripeptide-based macroporous hydrogel improves the osteogenic microenvironment of stem cells. J Mater Chem B 2021; 9:6056-6067. [PMID: 34278393 DOI: 10.1039/d1tb01175h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Due to the ability to combine multiple osteogenic induction "cues" at the same time, hydrogels are widely used in the three-dimensional (3D) culture of human mesenchymal stem cells (hMSCs) and osteoinduction. However, the survival and proliferation of stem cells in a 3D culture system are limited, which reduces their osteogenic differentiation efficiency. In addition, the cells inside the hydrogel are prone to apoptosis due to hypoxia, which is a serious challenge for tissue engineering based on stem cells. In this study, a tripeptide-based macroporous alginate hydrogel was prepared to improve the osteogenic microenvironment of stem cells. The arginine-glycine-aspartate (RGD) peptide promoted the adhesion and proliferation of stem cells, and the degradation of gelatin microspheres (GMs) produced a macroporous structure to enhance further the migration and aggregation of stem cells. Mesoporous silica nanoparticles (MSNs) sustained-release bone-forming peptide-1 (BFP-1) induced osteogenic differentiation, and the sustained release of the QK peptide from the GMs promoted angiogenesis. In vitro experiments have shown that this functionalized hydrogel stimulates the proliferation of hMSCs, encourages larger cell cluster formation, and enhances the osteogenic differentiation efficiency. The released QK facilitates the proliferation and migration of endothelial cells. In vivo experiments have also verified that this system has a better osteogenic effect, and more blood vessels were observed inside the hydrogel, than in other systems. In general, this research has led to the development of a tripeptide macroporous hydrogel that can simultaneously promote osteogenesis and angiogenesis, showing great promise for applications of 3D cultures and stem cell-based tissue engineering.
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Affiliation(s)
- Qian Li
- Laboratory of Biomaterials and Regenerative Medicine, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China and Department of Oral and Maxillofacial Surgery, Central Laboratory, Peking University School and Hospital of Stomatology, Beijing 100081, China.
| | - He Zhang
- Department of Oral and Maxillofacial Surgery, Central Laboratory, Peking University School and Hospital of Stomatology, Beijing 100081, China.
| | - Jijia Pan
- Laboratory of Biomaterials and Regenerative Medicine, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Binhong Teng
- Department of Oral and Maxillofacial Surgery, Central Laboratory, Peking University School and Hospital of Stomatology, Beijing 100081, China.
| | - Ziqian Zeng
- Department of Oral and Maxillofacial Surgery, Central Laboratory, Peking University School and Hospital of Stomatology, Beijing 100081, China.
| | - Yang Chen
- Laboratory of Biomaterials and Regenerative Medicine, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Yu Hei
- College of Engineering, Peking University, Beijing 100871, China
| | - Siqi Zhang
- Institute of Molecular Medicine, Peking University, Beijing 100871, China
| | - Shicheng Wei
- Laboratory of Biomaterials and Regenerative Medicine, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China and Department of Oral and Maxillofacial Surgery, Central Laboratory, Peking University School and Hospital of Stomatology, Beijing 100081, China.
| | - Yuhua Sun
- School of Stomatology, Xuzhou Medical University, Xuzhou 221004, China and Department of Stomatology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou 221004, China.
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23
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Whitehead FA, Young SA, Kasapis S. Swelling behaviour and glass transition in genipin-crosslinked chitosan systems. Int J Biol Macromol 2020; 164:3075-3083. [DOI: 10.1016/j.ijbiomac.2020.08.178] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 08/19/2020] [Accepted: 08/22/2020] [Indexed: 12/11/2022]
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24
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Using Genipin to Immobilize Bone Morphogenetic Protein-2 on Zirconia Surface for Enhancing Cell Adhesion and Mineralization in Dental Implant Applications. Polymers (Basel) 2020; 12:polym12112639. [PMID: 33182709 PMCID: PMC7697914 DOI: 10.3390/polym12112639] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 11/02/2020] [Accepted: 11/05/2020] [Indexed: 02/05/2023] Open
Abstract
Our objective in this study was to promote cell responses through the immobilization of bone morphogenetic protein-2 (BMP-2) on roughened zirconia (ZrO2) through using the natural cross-linker genipin in dental implant applications. Field emission scanning electron microscope, X-ray photoelectron spectroscopy, and attenuated total reflection-Fourier transform infrared spectroscopy were used to analyze the surface characterizations, including the topography, chemistry, and functional groups, respectively, of the test specimens. Human bone marrow mesenchymal stem cells (hMSCs) were used to detect cell responses (adhesion, proliferation, and mineralization). The surface characterizations analysis results revealed that genipin was effective in immobilizing BMP-2 on roughened zirconia surfaces. BMP-2 proved effective in promoting the adhesion and mineralization of hMSCs on roughened zirconia. The surface modification proposed has potential in zirconia dental implant applications.
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25
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Tang R, Umemori K, Rabin J, Alsberg E. Bi-functional nanoparticle-stabilized hydrogel colloidosomes as both extracellular matrix and bioactive factor delivery vehicle. ADVANCED THERAPEUTICS 2020; 3:2000156. [PMID: 34327284 PMCID: PMC8315228 DOI: 10.1002/adtp.202000156] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Indexed: 12/22/2022]
Abstract
Maintaining both cell-cell and cell-extracellular matrix (ECM) interactions is often a critical component of three-dimensional (3D) tissue regeneration. In high-density cell condensation systems, lack of appropriate cell-ECM interactions can result in limited and/or slow cell differentiation and tissue formation. To address these problems, a colloidosome microsphere system that is composed of a gelatin hydrogel core and a porous nanoparticle shell is developed. The colloidosome microsphere functions as an ECM and morphogen carrier for the induction of cartilage formation of high-density human mesenchymal stem cell (hMSC) in 3D cultures. With the protection of the nanoparticle shell, the colloidosome microspheres can be readily suspended in aqueous solution without clumping, thus incorporated homogeneously within high-density cell condensations. The gelatin-based colloidosome microspheres stimulate chondrogenesis of hMSCs and degrade rapidly to facilitate ECM remodeling for new tissue formation. When loaded with human transforming growth factor-β1, a potent chondrogenic morphogen, the colloidosomes serve as a bioactive factor delivery vehicle as well. The dual functionality of the colloidosomes as an ECM and a growth factor carrier effectively supports the chondrogenic differentiation of high-density hMSC condensations. These capabilities render the colloidosomes a promising platform system amenable to large-scale production of high-density 3D tissue culture constructs.
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Affiliation(s)
- Rui Tang
- Department of Biomedical Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA
| | - Kentaro Umemori
- Department of Biomedical Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA
| | - Jacob Rabin
- Department of Biomedical Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA
| | - Eben Alsberg
- Department of Biomedical Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA
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26
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An intravenous application of magnetic nanoparticles for osteomyelitis treatment: An efficient alternative. Int J Pharm 2020; 592:119999. [PMID: 33190790 DOI: 10.1016/j.ijpharm.2020.119999] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 10/01/2020] [Accepted: 10/17/2020] [Indexed: 01/06/2023]
Abstract
The infection of bone and bone marrow is called osteomyelitis. Treatment is difficult since antibiotics can not reach with enough concentration to the infected area. For the first time in this study, we have developed gentamicin-loaded magnetic gelatin nanoparticles (GMGNPs) for nanocarrier-mediated and magnetically targeted osteomyelitis therapy. Gelatin, genipin, and magnetite were used for preparation of that novel carrier system due to their biodegradable and biocompatible properties. Cross-linking degree of gelatin nanoparticles, concentration of magnetite nanoparticles, and adsorbed drug amount were optimized. Furthermore, nanoparticles were characterized and the drug release profile was determined. The osteomyelitis model was constituted in the proximal tibia of rats. The therapeutic potential of GMGNPs on rats was monitored via X-Ray radiography and hematological and histopathological analyses were performed. According to the results, 110.3 ± 8.2 µg gentamicin/mg GMGNPs were used, hydrodynamic size was measured as 253.7 ± 11.8 nm, and GMGNPs have controlled drug release profile. Based on in vivo and ex vivo studies, after six doses of GMGNPs treatment, abscess began to heal and the integrity of periost and bone began to reconstruct. In conclusion, it can be suggested that GMGNPs could provide efficient therapy for osteomyelitis.
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27
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Labay C, Roldán M, Tampieri F, Stancampiano A, Bocanegra PE, Ginebra MP, Canal C. Enhanced Generation of Reactive Species by Cold Plasma in Gelatin Solutions for Selective Cancer Cell Death. ACS APPLIED MATERIALS & INTERFACES 2020; 12:47256-47269. [PMID: 33021783 DOI: 10.1021/acsami.0c12930] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Atmospheric pressure plasma jets generate reactive oxygen and nitrogen species (RONS) in liquids and biological media, which find application in the new area of plasma medicine. These plasma-treated liquids were demonstrated recently to possess selective properties on killing cancer cells and attracted attention toward new plasma-based cancer therapies. These allow for local delivery by injection in the tumor but can be quickly washed away by body fluids. By confining these RONS in a suitable biocompatible delivery system, great perspectives can be opened in the design of novel biomaterials aimed for cancer therapies. Gelatin solutions are evaluated here to store RONS generated by atmospheric pressure plasma jets, and their release properties are evaluated. The concentration of RONS was studied in 2% gelatin as a function of different plasma parameters (treatment time, nozzle distance, and gas flow) with two different plasma jets. Much higher production of reactive species (H2O2 and NO2-) was revealed in the polymer solution than in water after plasma treatment. The amount of RONS generated in gelatin is greatly improved with respect to water, with concentrations of H2O2 and NO2- between 2 and 12 times higher for the longest plasma treatments. Plasma-treated gelatin exhibited the release of these RONS to a liquid media, which induced an effective killing of bone cancer cells. Indeed, in vitro studies on the sarcoma osteogenic (SaOS-2) cell line exposed to plasma-treated gelatin led to time-dependent increasing cytotoxicity with the longer plasma treatment time of gelatin. While the SaOS-2 cell viability decreased to 12%-23% after 72 h for cells exposed to 3 min of treated gelatin, the viability of healthy cells (hMSC) was preserved (∼90%), establishing the selectivity of the plasma-treated gelatin on cancer cells. This sets the basis for designing improved hydrogels with high capacity to deliver RONS locally to tumors.
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Affiliation(s)
- Cédric Labay
- Biomaterials, Biomechanics and Tissue Engineering Group, Universitat Politècnica de Catalunya, Av. Eduard Maristany 10-14, 08019 Barcelona, Spain
- Barcelona Research Center in Multiscale Science and Engineering, UPC, Barcelona, Spain
- Research Centre for Biomedical Engineering, UPC, 08019 Barcelona, Spain
| | - Marcel Roldán
- Biomaterials, Biomechanics and Tissue Engineering Group, Universitat Politècnica de Catalunya, Av. Eduard Maristany 10-14, 08019 Barcelona, Spain
- Barcelona Research Center in Multiscale Science and Engineering, UPC, Barcelona, Spain
| | - Francesco Tampieri
- Biomaterials, Biomechanics and Tissue Engineering Group, Universitat Politècnica de Catalunya, Av. Eduard Maristany 10-14, 08019 Barcelona, Spain
- Barcelona Research Center in Multiscale Science and Engineering, UPC, Barcelona, Spain
- Research Centre for Biomedical Engineering, UPC, 08019 Barcelona, Spain
| | - Augusto Stancampiano
- GREMI, UMR 7344, CNRS/Université d'Orléans, BP 6744, CEDEX 2, 45067 Orléans, France
| | | | - Maria-Pau Ginebra
- Biomaterials, Biomechanics and Tissue Engineering Group, Universitat Politècnica de Catalunya, Av. Eduard Maristany 10-14, 08019 Barcelona, Spain
- Barcelona Research Center in Multiscale Science and Engineering, UPC, Barcelona, Spain
- Research Centre for Biomedical Engineering, UPC, 08019 Barcelona, Spain
- Institute for Bioengineering of Catalonia, c/Baldiri i Reixach 10-12, 08028 Barcelona, Spain
| | - Cristina Canal
- Biomaterials, Biomechanics and Tissue Engineering Group, Universitat Politècnica de Catalunya, Av. Eduard Maristany 10-14, 08019 Barcelona, Spain
- Barcelona Research Center in Multiscale Science and Engineering, UPC, Barcelona, Spain
- Research Centre for Biomedical Engineering, UPC, 08019 Barcelona, Spain
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28
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Lee Y, Yim SG, Lee GW, Kim S, Kim HS, Hwang DY, An BS, Lee JH, Seo S, Yang SY. Self-Adherent Biodegradable Gelatin-Based Hydrogel Electrodes for Electrocardiography Monitoring. SENSORS (BASEL, SWITZERLAND) 2020; 20:E5737. [PMID: 33050244 PMCID: PMC7601183 DOI: 10.3390/s20205737] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 10/04/2020] [Accepted: 10/06/2020] [Indexed: 05/31/2023]
Abstract
Patch-type hydrogel electrodes have received increasing attention in biomedical applications due to their high biocompatibility and conformal adherence. However, their poor mechanical properties and non-uniform electrical performance in a large area of the hydrogel electrode should be improved for use in wearable devices for biosignal monitoring. Here, we developed self-adherent, biocompatible hydrogel electrodes composed of biodegradable gelatin and conductive polymers for electrocardiography (ECG) measurement. After incorporating conductive poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate) (PEDOT:PSS) into gelatin hydrogels crosslinked by natural crosslinkers (genipin), the mechanical properties and electrical conductivity of the hydrogel electrodes were improved and additionally optimized by adjusting the amounts of crosslinker and PEDOT:PSS, respectively. Furthermore, the effect of dimethyl sulfoxide, as a dopant, on the conductivity of hydrogels was investigated. The gelatin-based, conductive hydrogel patch displayed self-adherence to human skin with an adhesive strength of 0.85 N and achieved conformal contact with less skin irritation compared to conventional electrodes with a chemical adhesive layer. Eyelet-type hydrogel electrodes, which were compatible with conventional ECG measurement instruments, exhibited a comparable performance in 12-lead human ECG measurement with commercial ECG clinical electrodes (3M Red Dot). These self-adherent, biocompatible, gelatin-based hydrogel electrodes could be used for monitoring various biosignals, such as in electromyography and electroencephalography.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Seung Yun Yang
- Department of Biomaterials Science (BK21 Four Program), College of Natural Resources & Life Science, Pusan National University, Miryang 50463, Korea; (Y.L.); (S.-G.Y.); (G.W.L.); (S.K.); (H.S.K.); (D.Y.H.); (B.-S.A.); (J.H.L.); (S.S.)
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29
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Maiz-Fernández S, Pérez-Álvarez L, Ruiz-Rubio L, Vilas-Vilela JL, Lanceros-Mendez S. Polysaccharide-Based In Situ Self-Healing Hydrogels for Tissue Engineering Applications. Polymers (Basel) 2020; 12:E2261. [PMID: 33019575 PMCID: PMC7600516 DOI: 10.3390/polym12102261] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 09/26/2020] [Accepted: 09/29/2020] [Indexed: 12/30/2022] Open
Abstract
In situ hydrogels have attracted increasing interest in recent years due to the need to develop effective and practical implantable platforms. Traditional hydrogels require surgical interventions to be implanted and are far from providing personalized medicine applications. However, in situ hydrogels offer a wide variety of advantages, such as a non-invasive nature due to their localized action or the ability to perfectly adapt to the place to be replaced regardless the size, shape or irregularities. In recent years, research has particularly focused on in situ hydrogels based on natural polysaccharides due to their promising properties such as biocompatibility, biodegradability and their ability to self-repair. This last property inspired in nature gives them the possibility of maintaining their integrity even after damage, owing to specific physical interactions or dynamic covalent bonds that provide reversible linkages. In this review, the different self-healing mechanisms, as well as the latest research on in situ self-healing hydrogels, is presented, together with the potential applications of these materials in tissue regeneration.
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Affiliation(s)
- Sheila Maiz-Fernández
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain; (S.M.-F.); (L.R.-R.); (J.L.V.-V.); (S.L.-M.)
- Macromolecular Chemistry Group (LABQUIMAC), Department of Physical Chemistry, Faculty of Science and Technology, University of the Basque Country, UPV/EHU, Barrio Sarriena, s/n, 48940 Leioa, Spain
| | - Leyre Pérez-Álvarez
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain; (S.M.-F.); (L.R.-R.); (J.L.V.-V.); (S.L.-M.)
- Macromolecular Chemistry Group (LABQUIMAC), Department of Physical Chemistry, Faculty of Science and Technology, University of the Basque Country, UPV/EHU, Barrio Sarriena, s/n, 48940 Leioa, Spain
| | - Leire Ruiz-Rubio
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain; (S.M.-F.); (L.R.-R.); (J.L.V.-V.); (S.L.-M.)
- Macromolecular Chemistry Group (LABQUIMAC), Department of Physical Chemistry, Faculty of Science and Technology, University of the Basque Country, UPV/EHU, Barrio Sarriena, s/n, 48940 Leioa, Spain
| | - Jose Luis Vilas-Vilela
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain; (S.M.-F.); (L.R.-R.); (J.L.V.-V.); (S.L.-M.)
- Macromolecular Chemistry Group (LABQUIMAC), Department of Physical Chemistry, Faculty of Science and Technology, University of the Basque Country, UPV/EHU, Barrio Sarriena, s/n, 48940 Leioa, Spain
| | - Senentxu Lanceros-Mendez
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain; (S.M.-F.); (L.R.-R.); (J.L.V.-V.); (S.L.-M.)
- IKERBASQUE, Basque Foundation for Science, 48013 Bilbao, Spain
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30
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Chen BZ, Zhang LQ, Xia YY, Zhang XP, Guo XD. A basal-bolus insulin regimen integrated microneedle patch for intraday postprandial glucose control. SCIENCE ADVANCES 2020; 6:eaba7260. [PMID: 32832606 PMCID: PMC7439566 DOI: 10.1126/sciadv.aba7260] [Citation(s) in RCA: 76] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Accepted: 05/27/2020] [Indexed: 05/02/2023]
Abstract
Multiple daily insulin injections have been a common regimen worldwide for the management of diabetes mellitus but involved potential safety and compliance problems. In this context, a single integrated microneedle patch (IMP) with multiple release kinetics is demonstrated to provide better physiologic insulin coverage for postprandial glycemic excursion in a convenient and pain-free manner. The combination of rapid separating technique and multiple individual microneedle arrays provides the combined ability to efficiently deliver insulin into the skin within seconds and to independently control insulin release kinetics. In addition, the diabetic rats with a traditional breakfast-lunch-dinner lifestyle exhibit obvious intraday glucose fluctuations, while the hypoglycemic experiments indicate that the IMP is capable of simultaneous bolus and sustained insulin delivery to closely match the glucose rise that occurs in response to meals and efficiently minimize excessive fluctuations, suggesting the potential of this new transdermal insulin delivery system as substitutes for multiple daily injections.
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Affiliation(s)
- Bo Zhi Chen
- Beijing Laboratory of Biomedical Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Li Qin Zhang
- Beijing Laboratory of Biomedical Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Yi Yun Xia
- Beijing Laboratory of Biomedical Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Xiao Peng Zhang
- Beijing Laboratory of Biomedical Materials, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China
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31
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Azarudeen RS, Hassan MN, Yassin MA, Thirumarimurugan M, Muthukumarasamy N, Velauthapillai D, Mustafa K. 3D printable Polycaprolactone-gelatin blends characterized for in vitro osteogenic potency. REACT FUNCT POLYM 2020. [DOI: 10.1016/j.reactfunctpolym.2019.104445] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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32
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Park E, Hart ML, Rolauffs B, Stegemann JP, T Annamalai R. Bioresponsive microspheres for on-demand delivery of anti-inflammatory cytokines for articular cartilage repair. J Biomed Mater Res A 2019; 108:722-733. [PMID: 31788947 DOI: 10.1002/jbm.a.36852] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 11/18/2019] [Accepted: 11/22/2019] [Indexed: 12/12/2022]
Abstract
Despite innovations in surgical interventions, treatment of cartilage injury in osteoarthritic joints remains a challenge due to concomitant inflammation. Obstructing a single dominant inflammatory cytokine has shown remarkable clinical benefits in rheumatoid arthritis, and similar strategies are being suggested to target inflammatory pathways in osteoarthritis (OA). Here, we describe the utility of gelatin microspheres that are responsive to proteolytic enzymes typically expressed in arthritic flares, resulting in on-demand and spatiotemporally controlled release of anti-inflammatory cytokines for cartilage preservation and repair. These microspheres were designed with a net negative charge to sequester cationic anti-inflammatory cytokines, and the magnitude of the negative charge potential increased with an increase in crosslinking density. Collagenase-mediated degradation of the microspheres was dependent on the concentration of the enzyme. Release of anti-inflammatory cytokines from the loaded microspheres directly correlated with the degradation of the gelatin matrix. Exposure of the IL-4 and IL-13 loaded microspheres reduced the inflammation of chondrocytes up to 80%. Hence, the delivery of these microspheres in an OA joint can attenuate the stimulation of chondrocytes and the resulting secretion of catabolic factors such as proteinases and nitric oxide. The microsphere format also allows for minimally invasive delivery and is less susceptible to mechanically induced drug release. Consequently, bioresponsive microspheres can be an effective tool for cartilage preservation and arthritis treatment.
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Affiliation(s)
- Eunjae Park
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan.,Center for Tissue Replacement, Regeneration and Neogenesis, Department of Orthopedics and Trauma Surgery, Medical Center-Albert-Ludwigs-University of Freiburg, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
| | - Melanie L Hart
- Center for Tissue Replacement, Regeneration and Neogenesis, Department of Orthopedics and Trauma Surgery, Medical Center-Albert-Ludwigs-University of Freiburg, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
| | - Bernd Rolauffs
- Center for Tissue Replacement, Regeneration and Neogenesis, Department of Orthopedics and Trauma Surgery, Medical Center-Albert-Ludwigs-University of Freiburg, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
| | - Jan P Stegemann
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan
| | - Ramkumar T Annamalai
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan
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33
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Qasim M, Chae DS, Lee NY. Bioengineering strategies for bone and cartilage tissue regeneration using growth factors and stem cells. J Biomed Mater Res A 2019; 108:394-411. [PMID: 31618509 DOI: 10.1002/jbm.a.36817] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Revised: 10/03/2019] [Accepted: 10/10/2019] [Indexed: 12/14/2022]
Abstract
Bone and cartilage tissue engineering is an integrative approach that is inspired by the phenomena associated with wound healing. In this respect, growth factors have emerged as important moieties for the control and regulation of this process. Growth factors act as mediators and control the important physiological functions of bone regeneration. Herein, we discuss the importance of growth factors in bone and cartilage tissue engineering, their loading and delivery strategies, release kinetics, and their integration with biomaterials and stem cells to heal bone fractures. We also highlighted the role of growth factors in the determination of the bone tissue microenvironment based on the reciprocal signaling with cells and biomaterial scaffolds on which future bone and cartilage tissue engineering technologies and medical devices will be based upon.
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Affiliation(s)
- Muhammad Qasim
- Department of BioNano Technology, Gachon University, Seongnam-si, Republic of Korea
| | - Dong Sik Chae
- Department of Orthopedic Surgery, International St. Mary's Hospital, Catholic Kwandong University College of Medicine, Incheon, Republic of Korea
| | - Nae Yoon Lee
- Department of BioNano Technology, Gachon University, Seongnam-si, Republic of Korea
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34
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Wang D, Wang X, Li X, Jiang L, Chang Z, Li Q. Biologically responsive, long-term release nanocoating on an electrospun scaffold for vascular endothelialization and anticoagulation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 107:110212. [PMID: 31761208 DOI: 10.1016/j.msec.2019.110212] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 08/21/2019] [Accepted: 09/16/2019] [Indexed: 01/19/2023]
Abstract
A critical challenge to the development of tissue engineering small-diameter vascular grafts is to achieve rapid endothelialization and long-term anticoagulation. It is necessary to graft both adhesion and antithrombus factors onto the surface of polycaprolactone without burst release to promote endothelial cell affinity and antithrombogenicity. A bionic structure with a nanocoating that allows a biologically responsive, long-term release was employed in this work to enable the grafting of various bioactive molecules such as gelatin, polylysine, and heparin. This approach involved orienting the biomimetic vascular structures; the self-assembly grafting of gelatin, polylysine, and heparin nanoparticles; and genipin crosslinking to form a multiphase crosslinked nanocoating. In this biologically inspired design, vascular endothelialization and long-term anticoagulation were successfully induced through a matrix metallopeptidase 2 regulative mechanism by delivering both adhesion and antithrombus factors with a responsive, long-term release without burst release. The method provided a simple and effective approach for delivering dual factors for tissue engineering small-diameter vascular grafts.
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Affiliation(s)
- Dongfang Wang
- School of Mechanics and Engineering Science, Zhengzhou University, Zhengzhou, 450001, PR China; National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou, 450001, PR China.
| | - Xiaofeng Wang
- School of Mechanics and Engineering Science, Zhengzhou University, Zhengzhou, 450001, PR China; National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou, 450001, PR China.
| | - Xuyan Li
- School of Mechanics and Engineering Science, Zhengzhou University, Zhengzhou, 450001, PR China; National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou, 450001, PR China.
| | - Lin Jiang
- National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou, 450001, PR China.
| | - Zhonghua Chang
- School of Mechanics and Engineering Science, Zhengzhou University, Zhengzhou, 450001, PR China; National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou, 450001, PR China.
| | - Qian Li
- School of Mechanics and Engineering Science, Zhengzhou University, Zhengzhou, 450001, PR China; National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou, 450001, PR China.
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Entekhabi E, Haghbin Nazarpak M, Sedighi M, Kazemzadeh A. Predicting degradation rate of genipin cross-linked gelatin scaffolds with machine learning. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 107:110362. [PMID: 31761181 DOI: 10.1016/j.msec.2019.110362] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 10/05/2019] [Accepted: 10/22/2019] [Indexed: 10/25/2022]
Abstract
Genipin can improve weak mechanical properties and control high degradation rate of gelatin, as a cross-linker of gelatin which is widely used in tissue engineering. In this study, genipin cross-linked gelatin biodegradable porous scaffolds with different weight percentages of gelatin and genipin were prepared for tissue regeneration and measurement of their various properties including morphological characteristics, mechanical properties, swelling, degree of crosslinking and degradation rate. Results indicated that the sample containing the highest amount of gelatin and genipin had the highest degree of crosslinking and increasing the percentage of genipin from 0.125% to 0.5% enhances ultimate tensile strength (UTS) up to 113% and 92%, for samples with 2.5% and 10% gelatin, respectively. For these samples, increasing the percentage of genipin, reduce their degradation rate significantly with an average value of 124%. Furthermore, experimental data are used to develop a machine learning model, which compares artificial neural networks (ANN) and kernel ridge regression (KRR) to predict degradation rate of genipin-cross-linked gelatin scaffolds as a property of interest. The predicted degradation rate demonstrates that the ANN, with mean squared error (MSE) of 2.68%, outperforms the KRR with MSE = 4.78% in terms of accuracy. These results suggest that machine learning models offer an excellent prediction accuracy to estimate the degradation rate which will significantly help reducing experimental costs needed to carry out scaffold design.
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Affiliation(s)
- Elahe Entekhabi
- Department of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran
| | | | - Mehdi Sedighi
- New Technologies Research Center (NTRC), Amirkabir University of Technology, Tehran, Iran; Department of Mechanical Engineering, University of Sistan and Baluchestan, Zahedan, Iran
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36
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Growth factor delivery: Defining the next generation platforms for tissue engineering. J Control Release 2019; 306:40-58. [DOI: 10.1016/j.jconrel.2019.05.028] [Citation(s) in RCA: 98] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 05/15/2019] [Accepted: 05/17/2019] [Indexed: 12/14/2022]
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Qasim M, Chae DS, Lee NY. Advancements and frontiers in nano-based 3D and 4D scaffolds for bone and cartilage tissue engineering. Int J Nanomedicine 2019; 14:4333-4351. [PMID: 31354264 PMCID: PMC6580939 DOI: 10.2147/ijn.s209431] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 05/06/2019] [Indexed: 01/23/2023] Open
Abstract
Given the enormous increase in the risks of bone and cartilage defects with the rise in the aging population, the current treatments available are insufficient for handling this burden, and the supply of donor organs for transplantation is limited. Therefore, tissue engineering is a promising approach for treating such defects. Advances in materials research and high-tech optimized fabrication of scaffolds have increased the efficiency of tissue engineering. Electrospun nanofibrous scaffolds and hydrogel scaffolds mimic the native extracellular matrix of bone, providing a support for bone and cartilage tissue engineering by increasing cell viability, adhesion, propagation, and homing, and osteogenic isolation and differentiation, vascularization, host integration, and load bearing. The use of these scaffolds with advanced three- and four-dimensional printing technologies has enabled customized bone grafting. In this review, we discuss the different approaches used for cartilage and bone tissue engineering.
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Affiliation(s)
- Muhammad Qasim
- Department of BioNano Technology, Gachon University, Seongnam-si, Gyeonggi-do13120, Republic of Korea
| | - Dong Sik Chae
- Department of Orthopedic Surgery, International St. Mary’s Hospital, Catholic Kwandong University College of Medicine, Incheon, Republic of Korea
| | - Nae Yoon Lee
- Department of BioNano Technology, Gachon University, Seongnam-si, Gyeonggi-do13120, Republic of Korea
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Kudva AK, Dikina AD, Luyten FP, Alsberg E, Patterson J. Gelatin microspheres releasing transforming growth factor drive in vitro chondrogenesis of human periosteum derived cells in micromass culture. Acta Biomater 2019; 90:287-299. [PMID: 30905864 PMCID: PMC6597958 DOI: 10.1016/j.actbio.2019.03.039] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 03/14/2019] [Accepted: 03/20/2019] [Indexed: 11/29/2022]
Abstract
For cartilage tissue engineering, several in vitro culture methodologies have displayed potential for the chondrogenic differentiation of mesenchymal stem cells (MSCs). Micromasses, cell aggregates or pellets, and cell sheets are all structures with high cell density that provides for abundant cell-cell interactions, which have been demonstrated to be important for chondrogenesis. Recently, these culture systems have been improved via the incorporation of growth factor releasing components such as degradable microspheres within the structures, further enhancing chondrogenesis. Herein, we incorporated different amounts of gelatin microspheres releasing transforming growth factor β1 (TGF-β1) into micromasses composed of human periosteum derived cells (hPDCs), an MSC-like cell population. The aim of this research was to investigate chondrogenic stimulation by TGF-β1 delivery from these degradable microspheres in comparison to exogenous supplementation with TGF-β1 in the culture medium. Microscopy showed that the gelatin microspheres could be successfully incorporated within hPDC micromasses without interfering with the formation of the structure, while biochemical analysis and histology demonstrated increasing DNA content at week 2 and accumulation of glycosaminoglycan and collagen at weeks 2 and 4. Importantly, similar chondrogenesis was achieved when TGF-β1 was delivered from the microspheres compared to controls with TGF-β1 in the medium. Increasing the amount of growth factor within the micromasses by increasing the amount of microspheres added did not further improve chondrogenesis of the hPDCs. These findings demonstrate the potential of using cytokine releasing, gelatin microspheres to enhance the chondrogenic capabilities of hPDC micromasses as an alternative to supplementation of the culture medium with growth factors. STATEMENT OF SIGNIFICANCE: Gelatin microspheres are utilized for growth factor delivery to enhance chondrogenesis of mesenchymal stem cells (MSCs) in high cell density culture systems. Herein, we employ a new combination of these microspheres with micromasses of human periosteum-derived cells, which possess ease of isolation, excellent expansion potential, and MSC-like differentiation capabilities. The resulting localized delivery of transforming growth factor β1 increases glycosaminoglycan and collagen production within the micromasses without exogenous stimulation in the medium. This unique combination is able to drive chondrogenesis up to similar levels as seen in micromasses that do receive exogenous stimulation. The addition of growth factor releasing microspheres to high cell density micromasses has the potential to reduce costs associated with this strategy for cartilage tissue engineering.
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Affiliation(s)
- Abhijith K Kudva
- Department of Materials Engineering, KU Leuven, Kasteelpark Arenberg 44, box 2450, 3001 Leuven, Belgium; Prometheus, Division of Skeletal Tissue Engineering, KU Leuven, Herestraat 49, box 813, 3000 Leuven, Belgium; Skeletal Biology and Engineering Research Center, KU Leuven, Herestraat 49, box 813, 3000 Leuven, Belgium.
| | - Anna D Dikina
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Frank P Luyten
- Prometheus, Division of Skeletal Tissue Engineering, KU Leuven, Herestraat 49, box 813, 3000 Leuven, Belgium; Skeletal Biology and Engineering Research Center, KU Leuven, Herestraat 49, box 813, 3000 Leuven, Belgium.
| | - Eben Alsberg
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106, USA; Department of Orthopaedic Surgery, Case Western Reserve University, Cleveland, OH 44106, USA.
| | - Jennifer Patterson
- Department of Materials Engineering, KU Leuven, Kasteelpark Arenberg 44, box 2450, 3001 Leuven, Belgium; Prometheus, Division of Skeletal Tissue Engineering, KU Leuven, Herestraat 49, box 813, 3000 Leuven, Belgium; Department of Imaging & Pathology, KU Leuven, Kapucijnenvoer 7 block a, box 7001, 3000 Leuven, Belgium.
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Whitehead FA, Paramita VD, Teimouri S, Young S, Kasapis S. Controlled release of ascorbic acid from genipin-crosslinked gelatin matrices under moving boundary conditions. Food Hydrocoll 2019. [DOI: 10.1016/j.foodhyd.2018.10.026] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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40
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Wang Y, Guo L, Dong S, Cui J, Hao J. Microgels in biomaterials and nanomedicines. Adv Colloid Interface Sci 2019; 266:1-20. [PMID: 30776711 DOI: 10.1016/j.cis.2019.01.005] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 01/27/2019] [Accepted: 01/28/2019] [Indexed: 11/28/2022]
Abstract
Microgels are colloidal particles with crosslinked polymer networks and dimensions ranging from tens of nanometers to micrometers. Specifically, smart microgels are fascinating capable of responding to biological signals in vivo or remote triggers and making the possible for applications in biomaterials and biomedicines. Therefore, how to fundamentally design microgels is an urgent problem to be solved. In this review, we put forward our important fundamental opinions on how to devise the intelligent microgels for cancer therapy, biosensing and biological lubrication. We focus on the design ideas instead of specific implementation process by employing reverse synthesis analysis to programme the microgels at the original stage. Moreover, special insights will be, for the first time, as far as we know, dedicated to the particles completely composed of DNA or proteins into microgel systems. These are discussed in detail in this review. We expect to give readers a broad overview of the design criteria and practical methodologies of microgels according to the application fields, as well as to propel the further developments of highly interesting concepts and materials.
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Affiliation(s)
- Yitong Wang
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials (Shandong University), Ministry of Education, Jinan 250100, PR China
| | - Luxuan Guo
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials (Shandong University), Ministry of Education, Jinan 250100, PR China
| | - Shuli Dong
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials (Shandong University), Ministry of Education, Jinan 250100, PR China
| | - Jiwei Cui
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials (Shandong University), Ministry of Education, Jinan 250100, PR China.
| | - Jingcheng Hao
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials (Shandong University), Ministry of Education, Jinan 250100, PR China.
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41
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Paramita VD, Kasapis S. Molecular dynamics of the diffusion of natural bioactive compounds from high-solid biopolymer matrices for the design of functional foods. Food Hydrocoll 2019. [DOI: 10.1016/j.foodhyd.2018.09.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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42
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Farhat W, Hasan A, Lucia L, Becquart F, Ayoub A, Kobeissy F. Hydrogels for Advanced Stem Cell Therapies: A Biomimetic Materials Approach for Enhancing Natural Tissue Function. IEEE Rev Biomed Eng 2019; 12:333-351. [DOI: 10.1109/rbme.2018.2824335] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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43
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Nouri-Felekori M, Khakbiz M, Nezafati N, Mohammadi J, Eslaminejad MB. Comparative analysis and properties evaluation of gelatin microspheres crosslinked with glutaraldehyde and 3-glycidoxypropyltrimethoxysilane as drug delivery systems for the antibiotic vancomycin. Int J Pharm 2018; 557:208-220. [PMID: 30597262 DOI: 10.1016/j.ijpharm.2018.12.054] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 12/01/2018] [Accepted: 12/17/2018] [Indexed: 11/30/2022]
Abstract
In the present comparative study, gelatin microspheres (GMs) were prepared by emulsification-solvent-extraction method using well-known crosslinker: glutaraldehyde (GA) and biocompatible silane-coupling agent: glycidoxypropyltrimethoxysilane (GPTMS). Crosslinking with GA was done by a definite and common procedure, while GPTMS crosslinking potency was investigated after 5, 10, 24, and 48 h synthesis periods and the fabrication method was adjusted in order for preparation of GMs with optimized morphological and compositional characteristics. The prepared GMs were then evaluated and compared as drug delivery systems for the antibiotic vancomycin (Vm). Morphological observations, FTIR, ninhydrin assay, swelling behavior evaluation and Hydrolytic degradation analysis proved successful modification of GMs and revealed that increasing synthesis time from 5 h to 24 h and 48 h, when using GPTMS as crosslinker, led to formation of morphologically-optimized GMs with highest crosslinking degree (∼50%) and the slowest hydrolytic degradation rate. Such GMs also exhibited most sustained release period of Vm. The antibacterial test results against gram-positive bacterium Staphylococcus aureus, were in accordance with the release profiles of Vm, as well. Together, GPTMS-crosslinked GMs with their preferable characteristics and known as biocompatible gelatin-siloxane hybrids, could act as proper drug delivery systems for the sustained release of the antibiotic vancomycin.
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Affiliation(s)
- Mohammad Nouri-Felekori
- Division of Biomedical Engineering, Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran 14395-1561, Iran
| | - Mehrdad Khakbiz
- Division of Biomedical Engineering, Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran 14395-1561, Iran.
| | - Nader Nezafati
- Biomaterials Research Group, Nanotechnology and Advanced Materials Department, Materials and Energy Research Center (MERC), Karaj, Iran
| | - Javad Mohammadi
- Division of Biomedical Engineering, Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran 14395-1561, Iran
| | - Mohamadreza Baghaban Eslaminejad
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
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44
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Irmak G, Demirtaş TT, Gümüşderelioǧlu M. Highly Methacrylated Gelatin Bioink for Bone Tissue Engineering. ACS Biomater Sci Eng 2018; 5:831-845. [DOI: 10.1021/acsbiomaterials.8b00778] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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45
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Gu L, Shan T, Ma YX, Tay FR, Niu L. Novel Biomedical Applications of Crosslinked Collagen. Trends Biotechnol 2018; 37:464-491. [PMID: 30447877 DOI: 10.1016/j.tibtech.2018.10.007] [Citation(s) in RCA: 153] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2018] [Revised: 10/19/2018] [Accepted: 10/19/2018] [Indexed: 02/08/2023]
Abstract
Collagen is one of the most useful biopolymers because of its low immunogenicity and biocompatibility. The biomedical potential of natural collagen is limited by its poor mechanical strength, thermal stability, and enzyme resistance, but exogenous chemical, physical, or biological crosslinks have been used to modify the molecular structure of collagen to minimize degradation and enhance mechanical stability. Although crosslinked collagen-based materials have been widely used in biomedicine, there is no standard crosslinking protocol that can achieve a perfect balance between stability and functional remodeling of collagen. Understanding the role of crosslinking agents in the modification of collagen performance and their potential biomedical applications are crucial for developing novel collagen-based biopolymers for therapeutic gain.
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Affiliation(s)
- Lisha Gu
- Department of Operative Dentistry and Endodontics, Guanghua School of Stomatology and Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, PR China
| | - Tiantian Shan
- Department of Operative Dentistry and Endodontics, Guanghua School of Stomatology and Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, PR China
| | - Yu-Xuan Ma
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases and Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, PR China
| | - Franklin R Tay
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases and Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, PR China; The Dental College of Georgia, Augusta University, Augusta, GA, USA.
| | - Lina Niu
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases and Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, PR China; The Dental College of Georgia, Augusta University, Augusta, GA, USA.
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46
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Contessi Negrini N, Tarsini P, Tanzi MC, Farè S. Chemically crosslinked gelatin hydrogels as scaffolding materials for adipose tissue engineering. J Appl Polym Sci 2018. [DOI: 10.1002/app.47104] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- N. Contessi Negrini
- Department of ChemistryMaterials and Chemical Engineering “G. Natta”, Politecnico di Milano Piazza Leonardo da Vinci 32, 20133, Milan Italy
- National Interuniversity Consortium of Materials Science and Technology (INSTM), via Giuseppe Giusti 9, 50121 Florence Italy
| | - P. Tarsini
- Department of ChemistryMaterials and Chemical Engineering “G. Natta”, Politecnico di Milano Piazza Leonardo da Vinci 32, 20133, Milan Italy
| | - M. C. Tanzi
- National Interuniversity Consortium of Materials Science and Technology (INSTM), via Giuseppe Giusti 9, 50121 Florence Italy
| | - S. Farè
- Department of ChemistryMaterials and Chemical Engineering “G. Natta”, Politecnico di Milano Piazza Leonardo da Vinci 32, 20133, Milan Italy
- National Interuniversity Consortium of Materials Science and Technology (INSTM), via Giuseppe Giusti 9, 50121 Florence Italy
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47
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Vafajoo A, Rostami A, Foroutan Parsa S, Salarian R, Rabiee N, Rabiee G, Rabiee M, Tahriri M, Vashaee D, Tayebi L, Hamblin MR. Multiplexed microarrays based on optically encoded microbeads. Biomed Microdevices 2018; 20:66. [PMID: 30088103 PMCID: PMC6143764 DOI: 10.1007/s10544-018-0314-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
In recent years, there has been growing interest in optically-encoded or tagged functionalized microbeads as a solid support platform to capture proteins or nucleotides which may serve as biomarkers of various diseases. Multiplexing technologies (suspension array or planar array) based on optically encoded microspheres have made possible the observation of relatively minor changes in biomarkers related to specific diseases. The ability to identify these changes at an early stage may allow the diagnosis of serious diseases (e.g. cancer) at a time-point when curative treatment may still be possible. As the overall accuracy of current diagnostic methods for some diseases is often disappointing, multiplexed assays based on optically encoded microbeads could play an important role to detect biomarkers of diseases in a non-invasive and accurate manner. However, detection systems based on functionalized encoded microbeads are still an emerging technology, and more research needs to be done in the future. This review paper is a preliminary attempt to summarize the state-of-the-art concerning diagnostic microbeads; including microsphere composition, synthesis, encoding technology, detection systems, and applications.
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Affiliation(s)
- Atieh Vafajoo
- Biomaterials Group, Faculty of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran
| | - Azin Rostami
- Biomaterials Group, Faculty of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran
| | - Sanam Foroutan Parsa
- Biomaterials Group, Faculty of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran
| | - Reza Salarian
- Biomedical Engineering Department, Maziar University, Royan, Noor, Iran
| | - Navid Rabiee
- Department of Chemistry, Shahid Beheshti University, Tehran, Iran
| | - Ghazal Rabiee
- Department of Chemistry, Shahid Beheshti University, Tehran, Iran
| | - Mohammad Rabiee
- Biomaterials Group, Faculty of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran
| | | | - Daryoosh Vashaee
- Electrical and Computer Engineering Department, North Carolina State University, Raleigh, NC, 27606, USA
| | - Lobat Tayebi
- Marquette University School of Dentistry, Milwaukee, WI, 53233, USA
- Biomaterials and Advanced Drug Delivery Laboratory, School of Medicine, Stanford University, Palo Alto, CA, 94304, USA
| | - Michael R Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA, 02114, USA.
- Department of Dermatology, Harvard Medical School, Boston, MA, 02115, USA.
- Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA, 02139, USA.
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48
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Sung B, Krieger J, Yu B, Kim MH. Colloidal gelatin microgels with tunable elasticity support the viability and differentiation of mesenchymal stem cells under pro-inflammatory conditions. J Biomed Mater Res A 2018; 106:2753-2761. [PMID: 30054959 DOI: 10.1002/jbm.a.36505] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 06/18/2018] [Accepted: 07/02/2018] [Indexed: 11/06/2022]
Abstract
Despite a promising potential for mesenchymal stem cells (MSCs) in tissue regeneration, a major challenge in MSC-based therapy has been associated with poor cell survival and low levels of cell integration into host tissue following transplantation. The objective of this study was to develop a gelatin-based colloidal microgel platform that enables the encapsulation of viable MSCs as well as confer fine-tuning of mechanical stiffness and low cytotoxicity. In this study, we report a facile method of fabricating gelatin-based microgel spheres for the encapsulation of MSCs using a water-in-oil mini-emulsification method, which is covalently crosslinked by genipin. At a given seeding cell number, there was a positive correlation between the size of the microsphere and the number of encapsulated MSCs. Controlling the crosslinking degree of gelatin matrix enabled a fine-tuning of mechanical stiffness of gel microsphere. MSCs within softer microgel exhibit more spread morphology than the cells in the stiffer matrix, while cells within stiffer matrix become more elongated morphology. Importantly, we show that the colloidal gelatin microgel could support the viability and differentiation of encapsulated MSCs in a pro-inflammatory environment. This study demonstrates the feasibility of using genipin-crosslinked gelatin gel microspheres as an injectable carrier of MSCs for tissue engineering applications, which can be further explored for MSC-based cell therapy for tissue repair. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 106A: 2753-2761, 2018.
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Affiliation(s)
- Baeckkyoung Sung
- Department of Biological Sciences, Kent State University, Kent, Ohio.,Liquid Crystal Institute and Chemical Physics Interdisciplinary Program, Kent State University, Kent, Ohio
| | - Jess Krieger
- School of Biomedical Sciences, Kent State University, Kent, Ohio
| | - Bing Yu
- Department of Biological Sciences, Kent State University, Kent, Ohio
| | - Min-Ho Kim
- Department of Biological Sciences, Kent State University, Kent, Ohio.,School of Biomedical Sciences, Kent State University, Kent, Ohio
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Annamalai RT, Naik T, Prout H, Putnam AJ, Stegemann JP. Biofabrication of injectable fibrin microtissues for minimally-invasive therapies: application of surfactants. ACTA ACUST UNITED AC 2018. [PMID: 29536947 DOI: 10.1088/1748-605x/aab66f] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Microtissues created from the protein fibrin and containing embedded cells can be used in modular tissue engineering approaches to create larger, hierarchical and complex tissue structures. In this paper we demonstrate an emulsification-based method for the production of such fibrin microtissues containing fibroblasts (FB) and endothelial cells (EC) and designed to promote tissue vascularization. Surfactants can be beneficial in the microtissue fabrication process to reduce aggregation and to facilitate recovery of microtissues from the emulsion, thereby increasing yield. The nonionic surfactants Pluronic L101® and Tween 20® both increased microtissue yield in a dose-dependent fashion. Cell viability of both human FB and human EC remained high after exposure to low surfactant concentrations but decreased with increasing surfactant concentration. L101 was markedly less cytotoxic than Tween, and therefore was the surfactant of choice in this application. The yield of cell-laden microtissues increased with increasing L101 concentration, though microtissues were slightly larger at low concentrations. The total metabolic activity of cells in retrieved microtissues was bimodal and was highest at an L101 concentration of 0.10% wt/vol. Network formation by EC in microtissues embedded in surrounding 3D fibrin hydrogels was also most extensive in microtissues made using an L101 concentration of 0.10% wt/vol. Minimally-invasive delivery of microtissue populations was demonstrated by injection through a standard 18 G needle, and the ability to form robust endothelial networks was maintained in injected microtissue populations. Taken together, these data demonstrate a facile emulsification-based method to create modular, cell-laden hydrogel microtissues that can be delivered by injection to promote tissue regeneration. Appropriate selection of the type and concentration of surfactant used in the process can be used to maximize viability and specialized function of the embedded cells. Such biomaterial-based microtissues may have broad applicability in cell-based therapies and tissue engineering.
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50
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Annamalai RT, Turner PA, Carson WF, Levi B, Kunkel S, Stegemann JP. Harnessing macrophage-mediated degradation of gelatin microspheres for spatiotemporal control of BMP2 release. Biomaterials 2018; 161:216-227. [PMID: 29421557 PMCID: PMC5831261 DOI: 10.1016/j.biomaterials.2018.01.040] [Citation(s) in RCA: 92] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 01/24/2018] [Accepted: 01/25/2018] [Indexed: 02/07/2023]
Abstract
Biomaterials-based approaches to harnessing the immune and inflammatory responses to potentiate wound healing hold important promise. Bone fracture healing is characterized by an acute inflammatory phase, followed by a transition to a regenerative and repair phase. In this study, we developed genipin-crosslinked gelatin microspheres designed to be preferentially degraded by inflammatory (M1) macrophages. Highly crosslinked (>90%) microspheres allowed efficient incorporation of bioactive bone morphogenetic protein 2 (BMP2), a potent stimulator of osteogenesis in progenitor cells, via electrostatic interactions. Release of BMP2 was directly correlated with degradation of the gelatin matrix. Exposure of microspheres to polarized murine macrophages showed that degradation was significantly higher in the presence of M1 macrophages, relative to alternatively activated (M2) macrophages and unpolarized controls. Microsphere degradation in the presence of non-inflammatory cells resulted in very low degradation rates. The expression of matrix metalloproteinases (MMPs) and tissue inhibitors of MMP (TIMPs) by macrophages were consistent with the observed phenotype-dependent degradation rates. Indirect co-culture of BMP2-loaded microspheres and macrophages with isolated adipose-derived mesenchymal stem cells (MSC) showed that M1 macrophages produced the strongest osteogenic response, comparable to direct supplementation of the culture medium with BMP2. Controlled release systems that are synchronized with the inflammatory response have the potential to provide better spatiotemporal control of growth factor delivery and therefore may improve the outcomes of recalcitrant wounds.
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Affiliation(s)
| | - Paul A Turner
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, USA
| | | | - Benjamin Levi
- Department of Surgery, University of Michigan, Ann Arbor, USA
| | - Steven Kunkel
- Department of Pathology, University of Michigan, Ann Arbor, USA
| | - Jan P Stegemann
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, USA.
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