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Rashidi S, Bagherpour G, Abbasi-Malati Z, Khosrowshahi ND, Chegeni SA, Roozbahani G, Lotfimehr H, Sokullu E, Rahbarghazi R. Endothelial progenitor cells for fabrication of engineered vascular units and angiogenesis induction. Cell Prolif 2024:e13716. [PMID: 39051852 DOI: 10.1111/cpr.13716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2024] [Revised: 06/21/2024] [Accepted: 07/03/2024] [Indexed: 07/27/2024] Open
Abstract
The promotion of vascularization and angiogenesis in the grafts is a crucial phenomenon in the healing process and tissue engineering. It has been shown that stem cells, especially endothelial progenitor cells (EPCs), can stimulate blood vessel formation inside the engineered hydrogels after being transplanted into the target sites. The incorporation of EPCs into the hydrogel can last the retention time, long-term survival, on-target delivery effects, migration and differentiation into mature endothelial cells. Despite these advantages, further modifications are mandatory to increase the dynamic growth and angiogenesis potential of EPCs in in vitro and in vivo conditions. Chemical modifications of distinct composites with distinct physical properties can yield better regenerative potential and angiogenesis during several pathologies. Here, we aimed to collect recent findings related to the application of EPCs in engineered vascular grafts and/or hydrogels for improving vascularization in the grafts. Data from the present article can help us in the application of EPCs as valid cell sources in the tissue engineering of several ischemic tissues.
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Affiliation(s)
- Somayyeh Rashidi
- Department of Medical Biotechnology, Faculty of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Ghasem Bagherpour
- Department of Medical Biotechnology, Faculty of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
- Zanjan Pharmaceutical Biotechnology Research Center, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Zahra Abbasi-Malati
- Student Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Sara Aghakhani Chegeni
- Department of Clinical Biochemistry and Laboratory Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Golbarg Roozbahani
- Department of Plant, Cell and Molecular Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | - Hamid Lotfimehr
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Emel Sokullu
- Research Center for Translational Medicine (KUTTAM), Koç University, Istanbul, Turkey
- Biophysics Department, Koç University School of Medicine, Istanbul, Turkey
| | - Reza Rahbarghazi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Applied Cell Sciences, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
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2
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Kim HS, Li CJ, Park SM, Kim KW, Mo JH, Jin GZ, Lee HH, Kim HW, Shin US, Lee JH. Development of an Injectable Biphasic Hyaluronic Acid-Based Hydrogel With Stress Relaxation Properties for Cartilage Regeneration. Adv Healthc Mater 2024; 13:e2400043. [PMID: 38569577 DOI: 10.1002/adhm.202400043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 03/31/2024] [Indexed: 04/05/2024]
Abstract
Biomimetic stress-relaxing hydrogels with reversible crosslinks attract significant attention for stem cell tissue regeneration compared with elastic hydrogels. However, stress-relaxing hyaluronic acid (HA)-based hydrogels fabricated using conventional technologies lack stability, biocompatibility, and mechanical tunability. Here, it is aimed to address these challenges by incorporating calcium or phosphate components into the HA backbone, which allows reversible crosslinking of HA with alginate to form interpenetrating networks, offering stability and mechanical tunability for mimicking cartilage. Diverse stress-relaxing hydrogels (τ1/2; SR50, 60-2000 s) are successfully prepared at ≈3 kPa stiffness with self-healing and shear-thinning abilities, favoring hydrogel injection. In vitro cell experiments with RNA sequencing analysis demonstrate that hydrogels tune chondrogenesis in a biphasic manner (hyaline or calcified) depending on the stress-relaxation properties and phosphate components. In vivo studies confirm the potential for biphasic chondrogenesis. These results indicate that the proposed stress-relaxing HA-based hydrogel with biphasic chondrogenesis (hyaline or calcified) is a promising material for cartilage regeneration.
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Affiliation(s)
- Han-Sem Kim
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea
- Department of Nano-biomedical Science, BK21 FOUR NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, South Korea
| | - Cheng Ji Li
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea
- Department of Nano-biomedical Science, BK21 FOUR NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, South Korea
| | - Sung-Min Park
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea
- Department of Nano-biomedical Science, BK21 FOUR NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, South Korea
| | - Kyung Wook Kim
- Department of Orthopaedic Surgery, Dankook University Hospital, Cheonan, 31116, South Korea
| | - Ji-Hun Mo
- Department of Otorhinolaryngology, Dankook University College of Medicine, Cheonan, 31116, South Korea
| | - Guang-Zhen Jin
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea
- Department of Nano-biomedical Science, BK21 FOUR NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, South Korea
- Cell & Matter Institute, Dankook University, Cheonan, 31116, Republic of Korea
| | - Hae-Hyoung Lee
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea
- Department of Nano-biomedical Science, BK21 FOUR NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, South Korea
- Cell & Matter Institute, Dankook University, Cheonan, 31116, Republic of Korea
- Department of Biomaterials Science, College of Dentistry, Dankook University, Cheonan, 31116, South Korea
- UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, Cheonan, 31116, South Korea
| | - Hae-Won Kim
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea
- Department of Nano-biomedical Science, BK21 FOUR NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, South Korea
- Cell & Matter Institute, Dankook University, Cheonan, 31116, Republic of Korea
- Department of Biomaterials Science, College of Dentistry, Dankook University, Cheonan, 31116, South Korea
- UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, Cheonan, 31116, South Korea
| | - Ueon Sang Shin
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea
- Department of Nano-biomedical Science, BK21 FOUR NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, South Korea
| | - Jung-Hwan Lee
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea
- Department of Nano-biomedical Science, BK21 FOUR NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 31116, South Korea
- Cell & Matter Institute, Dankook University, Cheonan, 31116, Republic of Korea
- Department of Biomaterials Science, College of Dentistry, Dankook University, Cheonan, 31116, South Korea
- UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, Cheonan, 31116, South Korea
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Schot M, Becker M, Paggi CA, Gomes F, Koch T, Gensheimer T, Johnbosco C, Nogueira LP, van der Meer A, Carlson A, Haugen H, Leijten J. Photoannealing of Microtissues Creates High-Density Capillary Network Containing Living Matter in a Volumetric-Independent Manner. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2308949. [PMID: 38095242 DOI: 10.1002/adma.202308949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 11/21/2023] [Indexed: 07/13/2024]
Abstract
The vascular tree is crucial for the survival and function of large living tissues. Despite breakthroughs in 3D bioprinting to endow engineered tissues with large blood vessels, there is currently no approach to engineer high-density capillary networks into living tissues in a scalable manner. Here, photoannealing of living microtissue (PALM) is presented as a scalable strategy to engineer capillary-rich tissues. Specifically, in-air microfluidics is used to produce living microtissues composed of cell-laden microgels in ultrahigh throughput, which can be photoannealed into a monolithic living matter. Annealed microtissues inherently give rise to an open and interconnected pore network within the resulting living matter. Interestingly, utilizing soft microgels enables microgel deformation, which leads to the uniform formation of capillary-sized pores. Importantly, the ultrahigh throughput nature underlying the microtissue formation uniquely facilitates scalable production of living tissues of clinically relevant sizes (>1 cm3) with an integrated high-density capillary network. In short, PALM generates monolithic, microporous, modular tissues that meet the previously unsolved need for large engineered tissues containing high-density vascular networks, which is anticipated to advance the fields of engineered organs, regenerative medicine, and drug screening.
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Affiliation(s)
- Maik Schot
- Leijten lab, Department of Developmental BioEngineering, TechMed Centre, University of Twente, Enschede, 7522AE, The Netherlands
| | - Malin Becker
- Leijten lab, Department of Developmental BioEngineering, TechMed Centre, University of Twente, Enschede, 7522AE, The Netherlands
| | - Carlo Alberto Paggi
- Leijten lab, Department of Developmental BioEngineering, TechMed Centre, University of Twente, Enschede, 7522AE, The Netherlands
| | - Francisca Gomes
- Leijten lab, Department of Developmental BioEngineering, TechMed Centre, University of Twente, Enschede, 7522AE, The Netherlands
| | - Timo Koch
- Department of Mathematics, University of Oslo, Oslo, 0316, Norway
| | - Tarek Gensheimer
- Department of Applied Stem Cell Technology, TechMed Centre, University of Twente, Enschede, 7500AE, The Netherlands
| | - Castro Johnbosco
- Leijten lab, Department of Developmental BioEngineering, TechMed Centre, University of Twente, Enschede, 7522AE, The Netherlands
| | | | - Andries van der Meer
- Department of Applied Stem Cell Technology, TechMed Centre, University of Twente, Enschede, 7500AE, The Netherlands
| | - Andreas Carlson
- Department of Mathematics, University of Oslo, Oslo, 0316, Norway
| | - Håvard Haugen
- Department of Biomaterials, Institute of Clinical Dentistry, University of Oslo, Oslo, 0316, Norway
| | - Jeroen Leijten
- Leijten lab, Department of Developmental BioEngineering, TechMed Centre, University of Twente, Enschede, 7522AE, The Netherlands
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Li X, Li L, Wang D, Zhang J, Yi K, Su Y, Luo J, Deng X, Deng F. Fabrication of polymeric microspheres for biomedical applications. MATERIALS HORIZONS 2024; 11:2820-2855. [PMID: 38567423 DOI: 10.1039/d3mh01641b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Polymeric microspheres (PMs) have attracted great attention in the field of biomedicine in the last several decades due to their small particle size, special functionalities shown on the surface and high surface-to-volume ratio. However, how to fabricate PMs which can meet the clinical needs and transform laboratory achievements to industrial scale-up still remains a challenge. Therefore, advanced fabrication technologies are pursued. In this review, we summarize the technologies used to fabricate PMs, including emulsion-based methods, microfluidics, spray drying, coacervation, supercritical fluid and superhydrophobic surface-mediated method and their advantages and disadvantages. We also review the different structures, properties and functions of the PMs and their applications in the fields of drug delivery, cell encapsulation and expansion, scaffolds in tissue engineering, transcatheter arterial embolization and artificial cells. Moreover, we discuss existing challenges and future perspectives for advancing fabrication technologies and biomedical applications of PMs.
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Affiliation(s)
- Xuebing Li
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China.
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical University, Xi'an, 710032, P. R. China
| | - Luohuizi Li
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China.
| | - Dehui Wang
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China.
| | - Jun Zhang
- Shandong Pharmaceutical Glass Co. Ltd, Zibo, 256100, P. R. China
| | - Kangfeng Yi
- Shandong Pharmaceutical Glass Co. Ltd, Zibo, 256100, P. R. China
| | - Yucai Su
- Shandong Pharmaceutical Glass Co. Ltd, Zibo, 256100, P. R. China
| | - Jing Luo
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China.
| | - Xu Deng
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China.
- Shenzhen Institute for Advanced Study, University of Electronic Science and Technology of China, Shenzhen, 518110, P. R. China
| | - Fei Deng
- Department of Nephrology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China
- Department of Nephrology, Sichuan Provincial People's Hospital Jinniu Hospital, Chengdu Jinniu District People's Hospital, Chengdu 610054, P. R. China.
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5
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Xuan L, Hou Y, Liang L, Wu J, Fan K, Lian L, Qiu J, Miao Y, Ravanbakhsh H, Xu M, Tang G. Microgels for Cell Delivery in Tissue Engineering and Regenerative Medicine. NANO-MICRO LETTERS 2024; 16:218. [PMID: 38884868 PMCID: PMC11183039 DOI: 10.1007/s40820-024-01421-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 04/26/2024] [Indexed: 06/18/2024]
Abstract
Microgels prepared from natural or synthetic hydrogel materials have aroused extensive attention as multifunctional cells or drug carriers, that are promising for tissue engineering and regenerative medicine. Microgels can also be aggregated into microporous scaffolds, promoting cell infiltration and proliferation for tissue repair. This review gives an overview of recent developments in the fabrication techniques and applications of microgels. A series of conventional and novel strategies including emulsification, microfluidic, lithography, electrospray, centrifugation, gas-shearing, three-dimensional bioprinting, etc. are discussed in depth. The characteristics and applications of microgels and microgel-based scaffolds for cell culture and delivery are elaborated with an emphasis on the advantages of these carriers in cell therapy. Additionally, we expound on the ongoing and foreseeable applications and current limitations of microgels and their aggregate in the field of biomedical engineering. Through stimulating innovative ideas, the present review paves new avenues for expanding the application of microgels in cell delivery techniques.
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Affiliation(s)
- Leyan Xuan
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target and Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, People's Republic of China
| | - Yingying Hou
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target and Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, People's Republic of China
| | - Lu Liang
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target and Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, People's Republic of China
| | - Jialin Wu
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target and Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, People's Republic of China
| | - Kai Fan
- School of Automation, Hangzhou Dianzi University, Hangzhou, 310018, People's Republic of China
| | - Liming Lian
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Jianhua Qiu
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target and Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, People's Republic of China
| | - Yingling Miao
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target and Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, People's Republic of China
| | - Hossein Ravanbakhsh
- Department of Biomedical Engineering, The University of Akron, Akron, OH, 44325, USA.
| | - Mingen Xu
- School of Automation, Hangzhou Dianzi University, Hangzhou, 310018, People's Republic of China.
| | - Guosheng Tang
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Molecular Target and Clinical Pharmacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Pharmaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, 511436, People's Republic of China.
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6
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Wu WS, Yan X, Chen S, Du Y, Hu J, Song Y, Zha Z, Xu YJ, Cao B, Xuan SH, Liu X, Chen B, Dong L, Lu Y, Yu SH. Minimally Invasive Delivery of Percutaneous Ablation Agent via Magnetic Colloidal Hydrogel Injection for Treatment of Hepatocellular Carcinoma. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2309770. [PMID: 38447017 DOI: 10.1002/adma.202309770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 02/28/2024] [Indexed: 03/08/2024]
Abstract
Percutaneous thermotherapy, a minimally invasive operational procedure, is employed in the ablation of deep tumor lesions by means of target-delivering heat. Conventional thermal ablation methods, such as radiofrequency or microwave ablation, to a certain extent, are subjected to extended ablation time as well as biosafety risks of unwanted overheating. Given its effectiveness and safety, percutaneous thermotherapy gains a fresh perspective, thanks to magnetic hyperthermia. In this respect, an injectable- and magnetic-hydrogel-construct-based thermal ablation agent is likely to be a candidate for the aforementioned clinical translation. Adopting a simple and environment-friendly strategy, a magnetic colloidal hydrogel injection is introduced by a binary system comprising super-paramagnetic Fe3O4 nanoparticles and gelatin nanoparticles. The colloidal hydrogel constructs, unlike conventional bulk hydrogel, can be easily extruded through a percutaneous needle and then self-heal in a reversible manner owing to the unique electrostatic cross-linking. The introduction of magnetic building blocks is exhibited with a rapid magnetothermal response to an alternating magnetic field. Such hydrogel injection is capable of generating heat without limitation of deep penetration. The materials achieve outstanding therapeutic results in mouse and rabbit models. These findings constitute a new class of locoregional interventional thermal therapies with minimal collateral damages.
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Affiliation(s)
- Wen-Shu Wu
- Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Xu Yan
- Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Sheng Chen
- Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Yaxin Du
- Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Jinlong Hu
- Department of General Surgery, Department of Ultrasonics, Department of Interventional Radiology, Anhui No. 2 Provincial People's Hospital, Hefei, Anhui, 230041, P. R. China
| | - Yonghong Song
- Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Zhengbao Zha
- Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Yun-Jun Xu
- New Cornerstone Science Laboratory, Division of Nanomaterials and Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, Department of Radiology, The First Affiliated Hospital of University of Science and Technology of China, University of Science and Technology of China, Hefei, 230026, China
| | - Baoqiang Cao
- Department of General Surgery, Department of Ultrasonics, Department of Interventional Radiology, Anhui No. 2 Provincial People's Hospital, Hefei, Anhui, 230041, P. R. China
| | - Shou-Hu Xuan
- CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, CAS Center for Excellence in Complex System Mechanics, University of Science and Technology of China, Hefei, 230027, China
| | - Xingyu Liu
- Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Bing Chen
- Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Liang Dong
- Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang, 310022, China
| | - Yang Lu
- Key Laboratory of Advanced Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering, School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Shu-Hong Yu
- New Cornerstone Science Laboratory, Division of Nanomaterials and Chemistry, Hefei National Research Center for Physical Sciences at the Microscale, Department of Radiology, The First Affiliated Hospital of University of Science and Technology of China, University of Science and Technology of China, Hefei, 230026, China
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7
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Geng W, Zhao J, Tao B, Yang Y, Duan Q, Gao P, He T, Liu S, Feng Q, Zhao P, Cai K. Regulation of rheumatoid arthritis microenvironment via a self-healing injectable hydrogel for improved inflammation elimination and bone repair. Bioact Mater 2024; 36:287-300. [PMID: 38496033 PMCID: PMC10940865 DOI: 10.1016/j.bioactmat.2024.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 03/01/2024] [Accepted: 03/02/2024] [Indexed: 03/19/2024] Open
Abstract
The rheumatoid arthritis (RA) microenvironment is often followed by a vicious circle of high inflammation, endogenous gas levels imbalance, and poor treatment. To break the circle, we develop a dual-gas-mediated injectable hydrogel for modulating the immune microenvironment of RA and simultaneously releasing therapeutic drugs. The hydrogel (DNRS gel) could be broken down on-demand by consuming excessive nitric oxide (NO) and releasing therapeutic hydrogen sulfide (H2S), resulting in endogenous gas restoration, inflammation alleviation, and macrophage polarization to M2 type. Additionally, the hydrogel could suppress osteoclastogenesis and enhance osteogenesis. Furthermore, the intra-articularly injected hydrogel with methotrexate (MTX/DNRS gel) significantly alleviated inflammation and clinical symptoms and promoted the repair of bone erosion in the collagen-induced arthritis rat model. As a result, in vivo results demonstrated that MTX/DNRS gel restored the microenvironment and improved the therapeutic effect of MTX. This study provides a novel understanding of developing versatile smart delivery platforms for RA treatment.
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Affiliation(s)
- Wenbo Geng
- Key Laboratory of Biorheological Science and Technology, Ministry of Education College of Bioengineering, Chongqing University, Chongqing, 400044, PR China
| | - Jie Zhao
- College of Medicine and Life Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, Sichuan, PR China
| | - Bailong Tao
- Laboratory Research Center, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, PR China
| | - Yulu Yang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education College of Bioengineering, Chongqing University, Chongqing, 400044, PR China
| | - Qiaojian Duan
- Key Laboratory of Biorheological Science and Technology, Ministry of Education College of Bioengineering, Chongqing University, Chongqing, 400044, PR China
| | - Pengfei Gao
- Key Laboratory of Biorheological Science and Technology, Ministry of Education College of Bioengineering, Chongqing University, Chongqing, 400044, PR China
| | - Tingting He
- Key Laboratory of Biorheological Science and Technology, Ministry of Education College of Bioengineering, Chongqing University, Chongqing, 400044, PR China
| | - Shaopeng Liu
- Key Laboratory of Biorheological Science and Technology, Ministry of Education College of Bioengineering, Chongqing University, Chongqing, 400044, PR China
| | - Qian Feng
- Key Laboratory of Biorheological Science and Technology, Ministry of Education College of Bioengineering, Chongqing University, Chongqing, 400044, PR China
| | - Peng Zhao
- Key Laboratory of Biorheological Science and Technology, Ministry of Education College of Bioengineering, Chongqing University, Chongqing, 400044, PR China
| | - Kaiyong Cai
- Key Laboratory of Biorheological Science and Technology, Ministry of Education College of Bioengineering, Chongqing University, Chongqing, 400044, PR China
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8
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Sun X, Huang X, Liang Q, Wang N, Zheng X, Zhang Q, Yu D. Curcumin-loaded keratin-chitosan hydrogels for enhanced peripheral nerve regeneration. Int J Biol Macromol 2024; 272:132448. [PMID: 38821302 DOI: 10.1016/j.ijbiomac.2024.132448] [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: 11/27/2023] [Revised: 05/03/2024] [Accepted: 05/15/2024] [Indexed: 06/02/2024]
Abstract
Peripheral nerve injury often leads to symptoms of motor and sensory impairment, and slow recovery of nerves after injury and limited treatment methods will aggravate symptoms or even lead to lifelong disability. Curcumin can promote peripheral nerve regeneration, but how to accurately deliver the appropriate concentration of curcumin in the local peripheral nerve remains to be solved. In this study, we designed a human hair keratin/chitosan (C/K) hydrogel with sodium tripolyphosphate ions crosslinked to deliver curcumin topically. Chitosan improves the mechanical properties of hydrogels and keratin improves the biocompatibility of hydrogels. C/K hydrogel showed good cytocompatibility, histocompatibility and degradability. In vitro experiments showed that hydrogels can continuously release curcumin for up to 10 days. In addition, a comprehensive analysis of behavioral, electrophysiological, histology, and target organ recovery results in animal experiments showed that locally delivered curcumin can enhance nerve regeneration in addition to hydrogels. In short, we provide a new method that combines the advantages of human hair keratin, chitosan, and curcumin for nerve damage repair.
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Affiliation(s)
- Xiguang Sun
- Department of Hand and Podiatric Surgery, Orthopedics Center, The First Hospital of Jilin University, Jilin University, Changchun 130031, PR China
| | - Xinrui Huang
- Department of Hand and Podiatric Surgery, Orthopedics Center, The First Hospital of Jilin University, Jilin University, Changchun 130031, PR China; Plastic and Burn Surgery, Children's Hospital Affiliated to Shandong University, Jinan Children's Hospital, Jinan, Shandong Province, China
| | - Quanduo Liang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China
| | - Nan Wang
- Department of Hand and Podiatric Surgery, Orthopedics Center, The First Hospital of Jilin University, Jilin University, Changchun 130031, PR China
| | - Xiaotian Zheng
- Core facility of the First Hospital of Jilin University, #519 Dongminzhu Str., Changchun, Jilin 130061, PR China
| | - Qiang Zhang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, PR China.
| | - Dehai Yu
- Core facility of the First Hospital of Jilin University, #519 Dongminzhu Str., Changchun, Jilin 130061, PR China.
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9
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Li Y, Song W, Kong L, He Y, Li H. Injectable and Microporous Microgel-Fiber Granular Hydrogel Loaded with Bioglass and siRNA for Promoting Diabetic Wound Healing. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2309599. [PMID: 38054634 DOI: 10.1002/smll.202309599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 11/23/2023] [Indexed: 12/07/2023]
Abstract
Injectable hydrogels find extensive application in the treatment of diabetic wound healing. However, traditional bulk hydrogels are significantly limited due to their nano-porous structure, which obstructs cell migration and tissue infiltration. Moreover, regulating inflammation and matrix metalloproteinase -9 (MMP-9) expression in diabetic wounds is crucial for enhancing wound healing. This study marks the first instance of introducing an efficient, scalable, and simple method for producing microfiber-gel granules encapsulating bioceramics powders. Utilizing this method, an injectable microporous granular microgel-fiber hydrogel (MFgel) is successfully developed by assembling microgel-fibers made from hyaluronic acid (HA) and sodium alginate (SA) loaded with small interfering RNA (siRNA) and bioglass (BG) particles. Compared to traditional hydrogels (Tgel), MFgel possesses a highly interconnected network with micron-sized pores, demonstrating favorable properties for cell adhesion and penetration in in vitro experiments. Additionally, MFgel exhibits a higher compressive modulus and superior mechanical stability. When implanted subcutaneously in mice, MFgel promotes cellular and tissue infiltration, facilitating cell proliferation. Furthermore, when applied to skin defects in diabetic rats, MFgel not only effectively regulates inflammation and suppresses MMP-9 expression but also enhances angiogenesis and collagen deposition, thereby significantly accelerating diabetic wound healing. Taken together, this hydrogel possesses great potential in diabetic wound healing applications.
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Affiliation(s)
- Ying Li
- Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, School of Biomedical Engineering, Shanghai Jiao Tong University, 600 Yishan Road, Shanghai, 200233, China
| | - Wei Song
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, 600 Yishan Road, Shanghai, 200233, China
| | - Lingzhi Kong
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, 600 Yishan Road, Shanghai, 200233, China
| | - Yaohua He
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, 600 Yishan Road, Shanghai, 200233, China
- Department of Orthopedic Surgery, Jinshan District Central Hospital affiliated to Shanghai University of Medicine & Health Sciences, Jinshan Branch of Shanghai Sixth People's Hospital, Shanghai, 201500, China
| | - Haiyan Li
- Chemical and Environment Engineering Department, School of Engineering, RMIT University, 124 La Trobe Street, Melbourne, VIC, 3001, Australia
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10
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Meissner S, Rees S, Nguyen L, Connor B, Barker D, Harland B, Raos B, Svirskis D. Encapsulation of the growth factor neurotrophin-3 in heparinised poloxamer hydrogel stabilises bioactivity and provides sustained release. BIOMATERIALS ADVANCES 2024; 159:213837. [PMID: 38522310 DOI: 10.1016/j.bioadv.2024.213837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 03/03/2024] [Accepted: 03/19/2024] [Indexed: 03/26/2024]
Abstract
Poloxamer-based hydrogels show promise to stabilise and sustain the delivery of growth factors in tissue engineering applications, such as following spinal cord injury. Typically, growth factors such as neurotrophin-3 (NT-3) degrade rapidly in solution. Similarly, poloxamer hydrogels also degrade readily and are, therefore, only capable of sustaining the release of a payload over a small number of days. In this study, we focused on optimising a hydrogel formulation, incorporating both poloxamer 188 and 407, for the sustained delivery of bioactive NT-3. Hyaluronic acid blended into the hydrogels significantly reduced the degradation of the gel. We identified an optimal hydrogel composition consisting of 20 % w/w poloxamer 407, 5 % w/w poloxamer 188, 0.6 % w/w NaCl, and 1.5 % w/w hyaluronic acid. Heparin was chemically bound to the poloxamer chains to enhance interactions between the hydrogel and the growth factor. The unmodified and heparin-modified hydrogels exhibited sustained release of NT-3 for 28 days while preserving the bioactivity of NT-3. Moreover, these hydrogels demonstrated excellent cytocompatibility and had properties suitable for injection into the intrathecal space, underscoring their suitability as a growth factor delivery system. The findings presented here contribute valuable insights to the development of effective delivery strategies for therapeutic growth factors for tissue engineering approaches, including the treatment of spinal cord injury.
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Affiliation(s)
- Svenja Meissner
- School of Pharmacy, Faculty of Medical and Health Sciences, University of Auckland, Grafton, Auckland 1023, New Zealand
| | - Shaun Rees
- School of Chemical Sciences, University of Auckland, Auckland 1010, New Zealand
| | - Linh Nguyen
- Department of Pharmacology & Clinical Pharmacology, Centre of Brain Research, School of Medical Science, Faculty of Medical and Health Sciences, University of Auckland, Grafton, Auckland 1023, New Zealand
| | - Bronwen Connor
- Department of Pharmacology & Clinical Pharmacology, Centre of Brain Research, School of Medical Science, Faculty of Medical and Health Sciences, University of Auckland, Grafton, Auckland 1023, New Zealand
| | - David Barker
- School of Chemical Sciences, University of Auckland, Auckland 1010, New Zealand
| | - Bruce Harland
- School of Pharmacy, Faculty of Medical and Health Sciences, University of Auckland, Grafton, Auckland 1023, New Zealand
| | - Brad Raos
- School of Pharmacy, Faculty of Medical and Health Sciences, University of Auckland, Grafton, Auckland 1023, New Zealand
| | - Darren Svirskis
- School of Pharmacy, Faculty of Medical and Health Sciences, University of Auckland, Grafton, Auckland 1023, New Zealand.
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11
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Trikalitis VD, Perea Paizal J, Rangel V, Stein F, Rouwkema J. Embedded Printing of Hydrogels and Watery Suspensions of Cells in Patterned Granular Baths. Tissue Eng Part C Methods 2024; 30:206-216. [PMID: 38568935 DOI: 10.1089/ten.tec.2024.0015] [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: 04/05/2024] Open
Abstract
Bioprinting within support media has emerged as the superior alternative to conventional extrusion printing. Not only because it allows for more freedom over the shapes that can be printed but also because it allows for the printing of inks that would not retain shape fidelity in freeform deposition such as watery liquids. Apart from functioning as mechanical support during embedded printing, hydrogel microparticle support media can provide the unique advantage of offering distinct chemotactic cues to cells printed in the baths by varying the composition of the hydrogel microparticles. There is great potential in compartmentalized granular baths consisting of different hydrogel particle materials in the field of tissue engineering, as these allow for the local inclusion of properties or cues to guide tissue development. In this work, we present a method to create compartmentalized embedding baths by printing multiple granular hydrogel materials that are widely used in tissue engineering. After adapting the volume fraction (φp) of the particles in the bath, we print within them using both inks composed of hydrogel or of cells and other particles suspended in watery liquid. Our process consists of the following three steps: First, the hydrogel microparticles are packed at a φp that allows them to be extruded while being reversibly jammed, facilitating the localized deposition of the granular media to form a compartmentalized bath. Second, each granular media is deposited in succession to create a packed suspension compartment, and by adding liquid post deposition, φp is reduced to allow for embedded printing. Finally, we demonstrate the printing of multiple inks within the compartmentalized embedding bath and highlight the distinct differences between using inks composed of hydrogels or inks composed of particles suspended in watery liquid. This approach combines the advantages of embedded printing through the use of granular media with the added ability to pattern multiple bioactive granular materials to locally affect the behavior of cells printed within the bath. We expect that this workflow will allow researchers to create spatially compartmentalized, customized bioactive embedding baths that allow for the embedded printing of inks composed of hydrogels, cells, and other particles adapted to their need.
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Affiliation(s)
- Vasileios D Trikalitis
- Department of Biomechanical Engineering, Vascularization Lab, Technical Medical Centre, University of Twente Faculty of Engineering Technology, Enschede, the Netherlands
| | - Julia Perea Paizal
- Department of Biomechanical Engineering, Vascularization Lab, Technical Medical Centre, University of Twente Faculty of Engineering Technology, Enschede, the Netherlands
| | - Vincent Rangel
- Department of Biomechanical Engineering, Vascularization Lab, Technical Medical Centre, University of Twente Faculty of Engineering Technology, Enschede, the Netherlands
| | - Fabian Stein
- Department of Biomechanical Engineering, Vascularization Lab, Technical Medical Centre, University of Twente Faculty of Engineering Technology, Enschede, the Netherlands
| | - Jeroen Rouwkema
- Department of Biomechanical Engineering, Vascularization Lab, Technical Medical Centre, University of Twente Faculty of Engineering Technology, Enschede, the Netherlands
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12
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Zhao R, Deng X, Dong J, Liang C, Yang X, Tang Y, Du J, Ge Z, Wang D, Shen Y, Jiang L, Lin W, Zhu T, Wang G. Highly Bioadaptable Hybrid Conduits with Spatially Bidirectional Structure for Precision Nerve Fiber Regeneration via Gene Therapy. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2309306. [PMID: 38483934 PMCID: PMC11109652 DOI: 10.1002/advs.202309306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 02/20/2024] [Indexed: 05/23/2024]
Abstract
Peripheral nerve deficits give rise to motor and sensory impairments within the limb. The clinical restoration of extensive segmental nerve defects through autologous nerve transplantation often encounters challenges such as axonal mismatch and suboptimal functional recovery. These issues may stem from the limited regenerative capacity of proximal axons and the subsequent Wallerian degeneration of distal axons. To achieve the integration of sensory and motor functions, a spatially differential plasmid DNA (pDNA) dual-delivery nanohydrogel conduit scaffold is devised. This innovative scaffold facilitates the localized administration of the transforming growth factor β (TGF-β) gene in the proximal region to accelerate nerve regeneration, while simultaneously delivering nicotinamide mononucleotide adenylyltransferase 2 (NMNAT2) to the distal region to mitigate Wallerian degeneration. By promoting autonomous and selective alignment of nerve fiber gap sutures via structure design, the approach aims to achieve a harmonious unification of nerve regeneration, neuromotor function, and sensory recovery. It is anticipated that this groundbreaking technology will establish a robust platform for gene delivery in tissue engineering.
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Affiliation(s)
- Renliang Zhao
- Orthopedics Research InstituteDepartment of OrthopedicsWest China HospitalSichuan UniversityChengdu610041P. R. China
- Trauma Medical CenterDepartment of Orthopedics SurgeryWest China HospitalSichuan UniversityChengdu610041China
| | - Xiangtian Deng
- Orthopedics Research InstituteDepartment of OrthopedicsWest China HospitalSichuan UniversityChengdu610041P. R. China
- Trauma Medical CenterDepartment of Orthopedics SurgeryWest China HospitalSichuan UniversityChengdu610041China
| | - Jizhao Dong
- Multidisciplinary Centre for Advanced MaterialsInstitute for Frontier Medical TechnologySchool of Chemistry and Chemical EngineeringShanghai University of Engineering Science333 Longteng Rd.Shanghai201620P. R. China
| | - Chen Liang
- Multidisciplinary Centre for Advanced MaterialsInstitute for Frontier Medical TechnologySchool of Chemistry and Chemical EngineeringShanghai University of Engineering Science333 Longteng Rd.Shanghai201620P. R. China
| | - Xiaozhong Yang
- Orthopedics Research InstituteDepartment of OrthopedicsWest China HospitalSichuan UniversityChengdu610041P. R. China
- Trauma Medical CenterDepartment of Orthopedics SurgeryWest China HospitalSichuan UniversityChengdu610041China
| | - Yunfeng Tang
- Head & Neck Oncology WardCancer CenterWest China HospitalCancer CenterSichuan UniversityChengdu610041P. R. China
| | - Juan Du
- Multidisciplinary Centre for Advanced MaterialsInstitute for Frontier Medical TechnologySchool of Chemistry and Chemical EngineeringShanghai University of Engineering Science333 Longteng Rd.Shanghai201620P. R. China
| | - Zilu Ge
- Orthopedics Research InstituteDepartment of OrthopedicsWest China HospitalSichuan UniversityChengdu610041P. R. China
- Trauma Medical CenterDepartment of Orthopedics SurgeryWest China HospitalSichuan UniversityChengdu610041China
| | - Dong Wang
- Orthopedics Research InstituteDepartment of OrthopedicsWest China HospitalSichuan UniversityChengdu610041P. R. China
- Trauma Medical CenterDepartment of Orthopedics SurgeryWest China HospitalSichuan UniversityChengdu610041China
| | - Yifan Shen
- Spine LabDepartment of Orthopedic SurgeryThe First Affiliated HospitalZhejiang University School of MedicineHangzhou310003China
| | - Lianghua Jiang
- Department of Orthopedic TraumaThe First People's Hospital of Kunshan affiliated with Jiangsu UniversitySuzhouJiangsu215300P. R. China
| | - Wei Lin
- Department of GynecologyWest China Second HospitalSichuan UniversityChengdu610041P. R. China
| | - Tonghe Zhu
- Multidisciplinary Centre for Advanced MaterialsInstitute for Frontier Medical TechnologySchool of Chemistry and Chemical EngineeringShanghai University of Engineering Science333 Longteng Rd.Shanghai201620P. R. China
| | - Guanglin Wang
- Orthopedics Research InstituteDepartment of OrthopedicsWest China HospitalSichuan UniversityChengdu610041P. R. China
- Trauma Medical CenterDepartment of Orthopedics SurgeryWest China HospitalSichuan UniversityChengdu610041China
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13
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Wang Y, Yan R, Yang H, Liu Y, Zhong X, Liu S, Xie R, Ren L. Modular Microgel-Based Bioassembly Scaffold Induced Chondrogenic and Osteogenic Differentiation of BMSCs. Macromol Biosci 2024:e2400051. [PMID: 38663437 DOI: 10.1002/mabi.202400051] [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: 02/06/2024] [Revised: 04/17/2024] [Indexed: 05/09/2024]
Abstract
Bioactive scaffolds capable of simultaneously repairing osteochondral defects remain a big challenge due to the heterogeneity of bone and cartilage. Currently modular microgel-based bioassembly scaffolds are emerged as potential solution to this challenge. Here, microgels based on methacrylic anhydride (MA) and dopamine modified gelatin (GelMA-DA) are loaded with chondroitin sulfate (CS) (the obtained microgel named GC Ms) or bioactive glass (BG) (the obtained microgel named GB Ms), respectively. GC Ms and GB Ms show good biocompatibility with BMSCs, which suggested by the adhesion and proliferation of BMSCs on their surfaces. Specially, GC Ms promote chondrogenic differentiation of BMSCs, while GB Ms promote osteogenic differentiation. Furthermore, the injectable GC Ms and GB Ms are assembled integrally by bottom-up in situ cross-linking to obtain modular microgel-based bioassembly scaffold (GC-GB/HM), which show a distinct bilayer structure and good porous properties and swelling properties. Particularly, the results of in vivo and in vitro experiments show that GC-GB/HM can simultaneously regulate the expression levels of chondrogenic- and osteogenesis-related genes and proteins. Therefore, modular microgel-based assembly scaffold in this work with the ability to promote bidirectional differentiation of BMSCs and has great potential for application in the minimally invasive treatment of osteochondral tissue defects.
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Affiliation(s)
- Yanyan Wang
- School of Materials Science and Engineering, National Engineering Research Center for Tissue Restoration and Reconstruction, Key Laboratory of Biomedical Engineering of Guangdong Province, Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, Innovation Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
| | - Ruyu Yan
- School of Materials Science and Engineering, National Engineering Research Center for Tissue Restoration and Reconstruction, Key Laboratory of Biomedical Engineering of Guangdong Province, Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, Innovation Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
| | - Hai Yang
- School of Materials Science and Engineering, National Engineering Research Center for Tissue Restoration and Reconstruction, Key Laboratory of Biomedical Engineering of Guangdong Province, Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, Innovation Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
| | - Ying Liu
- School of Materials Science and Engineering, National Engineering Research Center for Tissue Restoration and Reconstruction, Key Laboratory of Biomedical Engineering of Guangdong Province, Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, Innovation Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
| | - Xiupeng Zhong
- School of Materials Science and Engineering, National Engineering Research Center for Tissue Restoration and Reconstruction, Key Laboratory of Biomedical Engineering of Guangdong Province, Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, Innovation Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
| | - Sa Liu
- School of Materials Science and Engineering, National Engineering Research Center for Tissue Restoration and Reconstruction, Key Laboratory of Biomedical Engineering of Guangdong Province, Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, Innovation Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
| | - Renjian Xie
- School of Medical Information Engineering, Jiangxi Key Laboratory of Tissue Engineering, Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases (Ministry of Education), Gannan Medical University, Ganzhou, 341000, China
| | - Li Ren
- School of Materials Science and Engineering, National Engineering Research Center for Tissue Restoration and Reconstruction, Key Laboratory of Biomedical Engineering of Guangdong Province, Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, Innovation Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
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14
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Sharifi M, Kamalabadi-Farahani M, Salehi M, Ebrahimi-Barough S, Alizadeh M. Recent advances in enhances peripheral nerve orientation: the synergy of micro or nano patterns with therapeutic tactics. J Nanobiotechnology 2024; 22:194. [PMID: 38643117 PMCID: PMC11031871 DOI: 10.1186/s12951-024-02475-8] [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: 02/23/2024] [Accepted: 04/11/2024] [Indexed: 04/22/2024] Open
Abstract
Several studies suggest that topographical patterns influence nerve cell fate. Efforts have been made to improve nerve cell functionality through this approach, focusing on therapeutic strategies that enhance nerve cell function and support structures. However, inadequate nerve cell orientation can impede long-term efficiency, affecting nerve tissue repair. Therefore, enhancing neurites/axons directional growth and cell orientation is crucial for better therapeutic outcomes, reducing nerve coiling, and ensuring accurate nerve fiber connections. Conflicting results exist regarding the effects of micro- or nano-patterns on nerve cell migration, directional growth, immunogenic response, and angiogenesis, complicating their clinical use. Nevertheless, advances in lithography, electrospinning, casting, and molding techniques to intentionally control the fate and neuronal cells orientation are being explored to rapidly and sustainably improve nerve tissue efficiency. It appears that this can be accomplished by combining micro- and nano-patterns with nanomaterials, biological gradients, and electrical stimulation. Despite promising outcomes, the unclear mechanism of action, the presence of growth cones in various directions, and the restriction of outcomes to morphological and functional nerve cell markers have presented challenges in utilizing this method. This review seeks to clarify how micro- or nano-patterns affect nerve cell morphology and function, highlighting the potential benefits of cell orientation, especially in combined approaches.
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Affiliation(s)
- Majid Sharifi
- Student Research Committee, School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran.
- Department of Tissue Engineering, School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran.
| | | | - Majid Salehi
- Department of Tissue Engineering, School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Somayeh Ebrahimi-Barough
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Morteza Alizadeh
- Department of Tissue Engineering and Biomaterials, School of Advanced Medical Sciences and Technologies, Hamadan University of Medical Sciences, Hamadan, Iran
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15
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Carvalho BG, Nakayama A, Miwa H, Han SW, de la Torre LG, Di Carlo D, Lee J, Kim HJ, Khademhosseini A, de Barros NR. Gelatin methacryloyl granular scaffolds for localized mRNA delivery. AGGREGATE (HOBOKEN, N.J.) 2024; 5:e464. [PMID: 38800607 PMCID: PMC11126212 DOI: 10.1002/agt2.464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
mRNA therapy is the intracellular delivery of messenger RNA (mRNA) to produce desired therapeutic proteins. Developing strategies for local mRNA delivery is still required where direct intra-articular injections are inappropriate for targeting a specific tissue. The mRNA delivery efficiency depends on protecting nucleic acids against nuclease-mediated degradation and safe site-specific intracellular delivery. Herein, we report novel mRNA-releasing matrices based on RGD-moiety-rich gelatin methacryloyl (GelMA) microporous annealed particle (MAP) scaffolds. GelMA concentration in aerogel-based microgels (μgels) produced through a microfluidic process, MAP stiffnesses, and microporosity are crucial parameters for cell adhesion, spreading, and proliferation. After being loaded with mRNA complexes, MAP scaffolds composed of 10 % GelMA μgels display excellent cell viability with increasing cell infiltration, adhesion, proliferation, and gene transfer. The intracellular delivery is achieved by the sustained release of mRNA complexes from MAP scaffolds and cell adhesion on mRNA-releasing scaffolds. These findings highlight that hybrid systems can achieve efficient protein expression by delivering mRNA complexes, making them promising mRNA-releasing biomaterials for tissue engineering.
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Affiliation(s)
- Bruna Gregatti Carvalho
- Department of Material and Bioprocess Engineering, School of Chemical Engineering, University of Campinas (UNICAMP), 13083-970, Brazil; Terasaki Institute for Biomedical Innovation (TIBI), 90064, USA
| | - Aya Nakayama
- Terasaki Institute for Biomedical Innovation (TIBI), 90064, USA
| | - Hiromi Miwa
- Department of Bioengineering, University of California at Los Angeles (UCLA), 90095, USA
| | - Sang Won Han
- Center for Cell Therapy and Molecular, Federal University of São Paulo (UNIFESP), 04044-010, Brazil
| | - Lucimara Gaziola de la Torre
- Department of Material and Bioprocess Engineering, School of Chemical Engineering, University of Campinas (UNICAMP), 13083-970, Brazil
| | - Dino Di Carlo
- Department of Bioengineering, University of California at Los Angeles (UCLA), 90095, USA
| | - Junmin Lee
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 37673, Republic of Korea; Institute for Convergence Research and Education in Advanced Technology, Yonsei University, Incheon 21983, Republic of Korea
| | - Han-Jun Kim
- Terasaki Institute for Biomedical Innovation (TIBI), 90064, USA; College of Pharmacy, Korea University, 30019, Republic of Korea; Vellore Institute of Technology (VIT), Vellore, 632014, India
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16
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Wang J, Zhang L, Wang L, Tang J, Wang W, Xu Y, Li Z, Ding Z, Jiang X, Xi K, Chen L, Gu Y. Ligand-Selective Targeting of Macrophage Hydrogel Elicits Bone Immune-Stem Cell Endogenous Self-Healing Program to Promote Bone Regeneration. Adv Healthc Mater 2024; 13:e2303851. [PMID: 38226706 DOI: 10.1002/adhm.202303851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 01/05/2024] [Indexed: 01/17/2024]
Abstract
Targeting macrophages can facilitate the site-specific repair of critical bone defects. Herein, a composite hydrogel, gelatin-Bletilla striata polysaccharide-mesoporous bioactive glass hydrogel (GBMgel), is constructed via the self-assembly of mesoporous bioactive glass on polysaccharide structures, through the Schiff base reaction. GBMgel can efficiently capture macrophages and drive the recruitment of seed stem cells and vascular budding required for regeneration in the early stages of bone injury, and the observed sustained release of inorganic silicon ions further enhances bone matrix deposition, mineralization, and vascular maturation. Moreover, the use of macrophage-depleted rat calvarial defect models further confirms that GBMgel, with ligand-selective macrophage targeting, increases the bone regeneration area and the proportion of mature bone. Mechanistic studies reveal that GBMgel upregulates the TLR4/NF-κB and MAPK macrophage pathways in the early stages and the JAK/STAT3 pathway in the later stages; thus initiating macrophage polarization at different time points. In conclusion, this study is based on the endogenous self-healing properties of bone macrophages, which enhances stem cell homing, and provides a research and theoretical basis upon which bone tissue can be reshaped and regenerated using the body's immune power, providing a new strategy for the treatment of critical bone defects.
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Affiliation(s)
- Jiahao Wang
- Department of Orthopedics, the First Affiliated Hospital of Soochow University, 188 Shizi Road, Gusu District, Suzhou, Jiangsu, 215006, P. R. China
| | - Liang Zhang
- Department of Orthopedics, Beijing Friendship Hospital, Capital Medical University, No. 95, Yong An Road, XiCheng District, Beijing, 100050, P. R. China
| | - Lingjun Wang
- Department of Orthopedics, the First Affiliated Hospital of Soochow University, 188 Shizi Road, Gusu District, Suzhou, Jiangsu, 215006, P. R. China
| | - Jincheng Tang
- Department of Orthopedics, the First Affiliated Hospital of Soochow University, 188 Shizi Road, Gusu District, Suzhou, Jiangsu, 215006, P. R. China
| | - Wei Wang
- Department of Orthopedics, the First Affiliated Hospital of Soochow University, 188 Shizi Road, Gusu District, Suzhou, Jiangsu, 215006, P. R. China
| | - Yichang Xu
- Department of Orthopedics, the First Affiliated Hospital of Soochow University, 188 Shizi Road, Gusu District, Suzhou, Jiangsu, 215006, P. R. China
| | - Ziang Li
- Department of Orthopedics, the First Affiliated Hospital of Soochow University, 188 Shizi Road, Gusu District, Suzhou, Jiangsu, 215006, P. R. China
| | - Zhouye Ding
- Department of Orthopedics, the First Affiliated Hospital of Soochow University, 188 Shizi Road, Gusu District, Suzhou, Jiangsu, 215006, P. R. China
| | - Xinzhao Jiang
- Department of Orthopedics, the First Affiliated Hospital of Soochow University, 188 Shizi Road, Gusu District, Suzhou, Jiangsu, 215006, P. R. China
| | - Kun Xi
- Department of Orthopedics, the First Affiliated Hospital of Soochow University, 188 Shizi Road, Gusu District, Suzhou, Jiangsu, 215006, P. R. China
| | - Liang Chen
- Department of Orthopedics, the First Affiliated Hospital of Soochow University, 188 Shizi Road, Gusu District, Suzhou, Jiangsu, 215006, P. R. China
| | - Yong Gu
- Department of Orthopedics, the First Affiliated Hospital of Soochow University, 188 Shizi Road, Gusu District, Suzhou, Jiangsu, 215006, P. R. China
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17
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Cheng Q, Wang W, Dong X, Chai Y, Goto T, Tu R, Yan L, Yu A, Dai H. An Adaptable Drug Delivery System Facilitates Peripheral Nerve Repair by Remodeling the Microenvironment. Biomacromolecules 2024; 25:1509-1526. [PMID: 38376392 DOI: 10.1021/acs.biomac.3c01094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2024]
Abstract
The multifaceted process of nerve regeneration following damage remains a significant clinical issue, due to the lack of a favorable regenerative microenvironment and insufficient endogenous biochemical signaling. However, the current nerve grafts have limitations in functionality, as they require a greater capacity to effectively regulate the intricate microenvironment associated with nerve regeneration. In this regard, we proposed the construction of a functional artificial scaffold based on a "two-pronged" approach. The whole system was developed by encapsulating Tazarotene within nanomicelles formed through self-assembly of reactive oxygen species (ROS)-responsive amphiphilic triblock copolymer, all of which were further loaded into a thermosensitive injectable hydrogel. Notably, the hydrogel exhibits obvious temperature sensitivity at a concentration of 6 wt %, and the nanoparticles possess concentration-dependent H2O2-response capability with a controlled release profile in 48 h. The combined strategy promoted the repair of injured peripheral nerves, attributed to the dual role of the materials, which mainly involved providing structural support, modulating the immune microenvironment, and enhancing angiogenesis. Overall, this study opens up intriguing prospects in tissue engineering.
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Affiliation(s)
- Qiang Cheng
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan 430070, China
| | - Weixing Wang
- Department of Orthopedics Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - Xianzhen Dong
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan 430070, China
| | - Yunhui Chai
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan 430070, China
| | - Takashi Goto
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan 430070, China
| | - Rong Tu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan 430070, China
| | - Lesan Yan
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan 430070, China
| | - Aixi Yu
- Department of Orthopedics Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, China
| | - Honglian Dai
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan 430070, China
- Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Xianhu Hydrogen Valley, Foshan 528200, China
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18
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Tuftee C, Alsberg E, Ozbolat IT, Rizwan M. Emerging granular hydrogel bioinks to improve biological function in bioprinted constructs. Trends Biotechnol 2024; 42:339-352. [PMID: 37852853 PMCID: PMC10939978 DOI: 10.1016/j.tibtech.2023.09.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 09/18/2023] [Accepted: 09/19/2023] [Indexed: 10/20/2023]
Abstract
Advancements in 3D bioprinting have been hindered by the trade-off between printability and biological functionality. Existing bioinks struggle to meet both requirements simultaneously. However, new types of bioinks composed of densely packed microgels promise to address this challenge. These bioinks possess intrinsic porosity, allowing for cell growth, oxygen and nutrient transport, and better immunomodulatory properties, leading to superior biological functions. In this review, we highlight key trends in the development of these granular bioinks. Using examples, we demonstrate how granular bioinks overcome the trade-off between printability and cell function. Granular bioinks show promise in 3D bioprinting, yet understanding their unique structure-property-function relationships is crucial to fully leverage the transformative capabilities of these new types of bioinks in bioprinting.
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Affiliation(s)
- Cody Tuftee
- Department of Biomedical Engineering, Michigan Technological University, Houghton, MI, USA
| | - Eben Alsberg
- Jesse Brown Veterans Affairs Medical Center (JBVAMC), Chicago, IL 60612, USA; Department of Biomedical Engineering, University of Illinois at Chicago, Chicago, IL 60612, USA; Department of Orthopedic Surgery, University of Illinois at Chicago, Chicago, IL 60612, USA; Department of Pharmacology and Regenerative Medicine, University of Illinois at Chicago, Chicago, IL 60612, USA; Department of Mechanical & Industrial Engineering, University of Illinois at Chicago, Chicago, IL 60612, USA; Jesse Brown Veterans Affairs Medical Center (JBVAMC) at Chicago, Chicago, IL 60612, USA
| | - Ibrahim Tarik Ozbolat
- Biomedical Engineering Department, Penn State University, University Park, PA 16802, USA; Engineering Science and Mechanics, Penn State University, University Park, PA 16802, USA; Neurosurgery Department, Penn State University; Hershey, PA 17033, USA; Medical Oncology Department, Cukurova University, Adana 01330, Turkey
| | - Muhammad Rizwan
- Department of Biomedical Engineering, Michigan Technological University, Houghton, MI, USA.
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19
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Shi W, Jiang Y, Wu T, Zhang Y, Li T. Advancements in drug-loaded hydrogel systems for bone defect repair. Regen Ther 2024; 25:174-185. [PMID: 38230308 PMCID: PMC10789937 DOI: 10.1016/j.reth.2023.12.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 12/05/2023] [Accepted: 12/17/2023] [Indexed: 01/18/2024] Open
Abstract
Bone defects are primarily the result of high-energy trauma, pathological fractures, bone tumor resection, or infection debridement. The treatment of bone defects remains a huge clinical challenge. The current treatment options for bone defects include bone traction, autologous/allogeneic bone transplantation, gene therapy, and bone tissue engineering amongst others. With recent developments in the field, composite scaffolds prepared using tissue engineering techniques to repair bone defects are used more often. Among the various composite scaffolds, hydrogel exhibits the advantages of good biocompatibility, high water content, and degradability. Its three-dimensional structure is similar to that of the extracellular matrix, and as such it is possible to load stem cells, growth factors, metal ions, and small molecule drugs upon these scaffolds. Therefore, the hydrogel-loaded drug system has great potential in bone defect repair. This review summarizes the various natural and synthetic materials used in the preparation of hydrogels, in addition to the latest research status of hydrogel-loaded drug systems.
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Affiliation(s)
- Weipeng Shi
- Department of Orthopaedic Surgery, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yaping Jiang
- Department of Oral Implantology, The Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - Tingyu Wu
- Department of Orthopaedic Surgery, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yingze Zhang
- Department of Orthopaedic Surgery, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Tao Li
- Department of Orthopaedic Surgery, The Affiliated Hospital of Qingdao University, Qingdao, China
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20
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Elizalde-Cárdenas A, Ribas-Aparicio RM, Rodríguez-Martínez A, Leyva-Gómez G, Ríos-Castañeda C, González-Torres M. Advances in chitosan and chitosan derivatives for biomedical applications in tissue engineering: An updated review. Int J Biol Macromol 2024; 262:129999. [PMID: 38331080 DOI: 10.1016/j.ijbiomac.2024.129999] [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: 11/13/2023] [Revised: 01/19/2024] [Accepted: 02/04/2024] [Indexed: 02/10/2024]
Abstract
In recent years, chitosan (CS) has received much attention as a functional biopolymer for various applications, especially in the biomedical field. It is a natural polysaccharide created by the chemical deacetylation of chitin (CT) that is nontoxic, biocompatible, and biodegradable. This natural polymer is difficult to process; however, chemical modification of the CS backbone allows improved use of functional derivatives. CS and its derivatives are used to prepare hydrogels, membranes, scaffolds, fibers, foams, and sponges, primarily for regenerative medicine. Tissue engineering (TE), currently one of the fastest-growing fields in the life sciences, primarily aims to restore or replace lost or damaged organs and tissues using supports that, combined with cells and biomolecules, generate new tissue. In this sense, the growing interest in the application of biomaterials based on CS and some of its derivatives is justifiable. This review aims to summarize the most important recent advances in developing biomaterials based on CS and its derivatives and to study their synthesis, characterization, and applications in the biomedical field, especially in the TE area.
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Affiliation(s)
- Alejandro Elizalde-Cárdenas
- Conahcyt & Laboratorio de Biotecnología, Instituto Nacional de Rehabilitación "Luis Guillermo Ibarra", Ciudad de México 14389, Mexico; Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México 11340, Mexico
| | - Rosa María Ribas-Aparicio
- Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México 11340, Mexico
| | - Aurora Rodríguez-Martínez
- Conahcyt & Laboratorio de Biotecnología, Instituto Nacional de Rehabilitación "Luis Guillermo Ibarra", Ciudad de México 14389, Mexico; Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México 11340, Mexico
| | - Gerardo Leyva-Gómez
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad de México 04510, Mexico
| | - Camilo Ríos-Castañeda
- Dirección de investigación, Instituto Nacional de Rehabilitación "Luis Guillermo Ibarra", Ciudad de México 14389, Mexico
| | - Maykel González-Torres
- Conahcyt & Laboratorio de Biotecnología, Instituto Nacional de Rehabilitación "Luis Guillermo Ibarra", Ciudad de México 14389, Mexico.
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21
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Tanner GI, Schiltz L, Narra N, Figueiredo ML, Qazi TH. Granular Hydrogels Improve Myogenic Invasion and Repair after Volumetric Muscle Loss. Adv Healthc Mater 2024:e2303576. [PMID: 38329892 DOI: 10.1002/adhm.202303576] [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: 10/17/2023] [Revised: 12/26/2023] [Indexed: 02/10/2024]
Abstract
Skeletal muscle injuries including volumetric muscle loss (VML) lead to excessive tissue scarring and permanent functional disability. Despite its high prevalence, there is currently no effective treatment for VML. Bioengineering interventions such as biomaterials that fill the VML defect to support cell and tissue growth are a promising therapeutic strategy. However, traditional biomaterials developed for this purpose lack the pore features needed to support cell infiltration. The present study investigates for the first time, the impact of granular hydrogels on muscle repair - hypothesizing that their flowability will permit conformable filling of the defect site and their inherent porosity will support the invasion of native myogenic cells, leading to effective muscle repair. Small and large microparticle fragments are prepared from photocurable hyaluronic acid polymer via extrusion fragmentation and facile size sorting. In assembled granular hydrogels, particle size and degree of packing significantly influence pore features, rheological behavior, and injectability. Using a mouse model of VML, it is demonstrated that, in contrast to bulk hydrogels, granular hydrogels support early-stage (satellite cell invasion) and late-stage (myofiber regeneration) muscle repair processes. Together, these results highlight the promising potential of injectable and porous granular hydrogels in supporting endogenous repair after severe muscle injury.
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Affiliation(s)
- Gabrielle I Tanner
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, 47907, USA
- Department of Agricultural and Biological Engineering, Purdue University, West Lafayette, IN, 47907, USA
| | - Leia Schiltz
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, 47907, USA
| | - Niharika Narra
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, 47907, USA
| | - Marxa L Figueiredo
- Department of Basic Medical Sciences, Purdue University, West Lafayette, IN, 47907, USA
| | - Taimoor H Qazi
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, 47907, USA
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22
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Widener AE, Roberts A, Phelps EA. Granular Hydrogels for Harnessing the Immune Response. Adv Healthc Mater 2023:e2303005. [PMID: 38145369 PMCID: PMC11196388 DOI: 10.1002/adhm.202303005] [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: 09/08/2023] [Revised: 11/13/2023] [Indexed: 12/26/2023]
Abstract
This review aims to understand the current progress in immune-instructive granular hydrogels and identify the key features used as immunomodulatory strategies. Published work is systematically reviewed and relevant information about granular hydrogels used throughout these studies is collected. The base polymer, microgel generation technique, polymer crosslinking chemistry, particle size and shape, annealing strategy, granular hydrogel stiffness, pore size and void space, degradability, biomolecule presentation, and drug release are cataloged for each work. Several granular hydrogel parameters used for immune modulation: porosity, architecture, bioactivity, drug release, cell delivery, and modularity, are identified. The authors found in this review that porosity is the most significant factor influencing the innate immune response to granular hydrogels, while incorporated bioactivity is more significant in influencing adaptive immune responses. Here, the authors' findings and summarized results from each section are presented and suggestions are made for future studies to better understand the benefits of using immune-instructive granular hydrogels.
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Affiliation(s)
- Adrienne E Widener
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, 1275 Center Dr., Gainesville, 32611, USA
| | - Abilene Roberts
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, 1275 Center Dr., Gainesville, 32611, USA
| | - Edward A Phelps
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, 1275 Center Dr., Gainesville, 32611, USA
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23
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Liu Y, Suarez-Arnedo A, Caston EL, Riley L, Schneider M, Segura T. Exploring the Role of Spatial Confinement in Immune Cell Recruitment and Regeneration of Skin Wounds. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2304049. [PMID: 37721722 PMCID: PMC10874253 DOI: 10.1002/adma.202304049] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 09/09/2023] [Indexed: 09/19/2023]
Abstract
Microporous annealed particle (MAP) scaffolds are injectable granular materials comprised of micron sized hydrogel particles (microgels). The diameter of these microgels directly determines the size of the interconnected void space between particles where infiltrating or encapsulated cells reside. This tunable porosity allows the authors to use MAP scaffolds to study the impact of spatial confinement (SC) on both cellular behaviors and the host response to biomaterials. Despite previous studies showing that pore size and SC influence cellular phenotypes, including mitigating macrophage inflammatory response, there is still a gap in knowledge regarding how SC within a biomaterial modulates immune cell recruitment in vivo in wounds and implants. Thus, the immune cell profile within confined and unconfined biomaterials is studied using small (40 µm), medium (70 µm), and large (130 µm) diameter spherical microgels, respectively. This work uncovered that MAP scaffolds impart regenerative wound healing with an IgG1-biased Th2 response. MAP scaffolds made with large microgels promote a balanced pro-regenerative macrophage response, resulting in enhanced wound healing with mature collagen regeneration and reduced inflammation levels.
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Affiliation(s)
- Yining Liu
- Department of Biomedical Engineering, Duke University, 101 Science Drive Campus Box 90281, Durham, NC 27708, USA
| | - Alejandra Suarez-Arnedo
- Department of Biomedical Engineering, Duke University, 101 Science Drive Campus Box 90281, Durham, NC 27708, USA
| | - Eleanor L.P. Caston
- Department of Biomedical Engineering, Duke University, 101 Science Drive Campus Box 90281, Durham, NC 27708, USA
| | - Lindsay Riley
- Department of Biomedical Engineering, Duke University, 101 Science Drive Campus Box 90281, Durham, NC 27708, USA
| | - Michelle Schneider
- Department of Pathology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Tatiana Segura
- Department of Biomedical Engineering, Duke University, 101 Science Drive Campus Box 90281, Durham, NC 27708, USA
- Clinical Science Departments of Neurology and Dermatology, Duke University, Durham, NC 27708, USA
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24
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Nguyen TPT, Li F, Hung B, Truong VX, Thissen H, Forsythe JS, Frith JE. Cell Microencapsulation within Gelatin-PEG Microgels Using a Simple Pipet Tip-Based Device. ACS Biomater Sci Eng 2023; 9:6024-6033. [PMID: 37788301 DOI: 10.1021/acsbiomaterials.3c00676] [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: 10/05/2023]
Abstract
Microgels are microscale particles of hydrogel that can be laden with cells and used to create macroporous tissue constructs. Their ability to support cell-ECM and cell-cell interactions, along with the high levels of nutrient and metabolite exchange facilitated by their high surface area-to-volume ratio, means that they are attracting increasing attention for a variety of tissue regeneration applications. Here, we present methods for fabricating and modifying the structure of microfluidic devices using commonly available laboratory consumables including pipet tips and PTFE and silicon tubing to produce microgels. Different microfluidic devices realized the controlled generation of a wide size range (130-800 μm) of microgels for cell encapsulation. Subsequently, we describe the process of encapsulating mesenchymal stromal cells in microgels formed by photo-cross-linking of gelatin-norbornene and PEG dithiol. The introduced pipet-based chip offers simplicity, tunability, and versatility, making it easily assembled in most laboratories to effectively produce cell-laden microgels for various applications in tissue engineering.
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Affiliation(s)
- Thuy P T Nguyen
- Department Materials Science and Engineering, Monash University, Clayton, Victoria 3800, Australia
| | - Fanyi Li
- CSIRO Manufacturing, Research Way, Clayton, Victoria 3168, Australia
| | - Brendan Hung
- Department Materials Science and Engineering, Monash University, Clayton, Victoria 3800, Australia
| | - Vinh Xuan Truong
- Institute of Sustainability for Chemicals, Energy and Environment (ISCE2), Agency for Science, Technology and Research (A*STAR), 1 Pesek Road, Jurong Island, Singapore 627833, Republic of Singapore
| | - Helmut Thissen
- CSIRO Manufacturing, Research Way, Clayton, Victoria 3168, Australia
| | - John S Forsythe
- Department Materials Science and Engineering, Monash University, Clayton, Victoria 3800, Australia
- Australian Research Council Training Centre for Cell and Tissue Engineering Technologies, Monash University, Clayton, Victoria 3800, Australia
| | - Jessica E Frith
- Department Materials Science and Engineering, Monash University, Clayton, Victoria 3800, Australia
- Australian Research Council Training Centre for Cell and Tissue Engineering Technologies, Monash University, Clayton, Victoria 3800, Australia
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25
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Bulut S, Jung SH, Bissing T, Schmitt F, Bund M, Braun S, Pich A. Tuning the Porosity of Dextran Microgels with Supramacromolecular Nanogels as Soft Sacrificial Templates. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2303783. [PMID: 37434076 DOI: 10.1002/smll.202303783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 06/26/2023] [Indexed: 07/13/2023]
Abstract
Hydrogels, as well as colloidal hydrogels (microgels), are important materials for a large variety of applications in the biomedical field. Microgels with a controlled pore size (meso- and macropores) are required for efficient nutrient support, modulation of cell adhesion, removal of metabolic products in cell cultures, and probiotic loading. Common microgel fabrication techniques do not provide sufficient control over pore sizes and geometry. In this work, the natural polysaccharide dextran modified with methacrylate groups is used to synthesize highly monodisperse meso- and macroporous microgels in a size range of 100-150 µm via photo cross-linking in microfluidic droplets. The size of mesopores is varied by the concentration of dextran methacrylate chains in the droplets (50-200 g L-1 ) and the size of macropores is regulated by the integration of pH-degradable supramacromolecular nanogels with diameters of 300 and 700 nm as sacrificial templates. Using permeability assays combined with confocal laser scanning microscopy, it is demonstrated that functional dextran-based microgels with uniform and defined pores could be obtained.
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Affiliation(s)
- Selin Bulut
- DWI - Leibniz Institute for Interactive Materials e. V. RWTH Aachen University, Forckenbeckstr. 50, 52074, Aachen, Germany
- Functional and Interactive Polymers, Institute of Technical and Macromolecular Chemistry (ITMC) RWTH Aachen University, Worringerweg 2, 52074, Aachen, Germany
| | - Se-Hyeong Jung
- DWI - Leibniz Institute for Interactive Materials e. V. RWTH Aachen University, Forckenbeckstr. 50, 52074, Aachen, Germany
- Functional and Interactive Polymers, Institute of Technical and Macromolecular Chemistry (ITMC) RWTH Aachen University, Worringerweg 2, 52074, Aachen, Germany
- Laboratory for Soft Materials and Interfaces, Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 1-5/10, Zürich, 8093, Switzerland
| | - Thomas Bissing
- DWI - Leibniz Institute for Interactive Materials e. V. RWTH Aachen University, Forckenbeckstr. 50, 52074, Aachen, Germany
- Functional and Interactive Polymers, Institute of Technical and Macromolecular Chemistry (ITMC) RWTH Aachen University, Worringerweg 2, 52074, Aachen, Germany
| | - Florian Schmitt
- DWI - Leibniz Institute for Interactive Materials e. V. RWTH Aachen University, Forckenbeckstr. 50, 52074, Aachen, Germany
- Functional and Interactive Polymers, Institute of Technical and Macromolecular Chemistry (ITMC) RWTH Aachen University, Worringerweg 2, 52074, Aachen, Germany
| | - Michelle Bund
- DWI - Leibniz Institute for Interactive Materials e. V. RWTH Aachen University, Forckenbeckstr. 50, 52074, Aachen, Germany
- Functional and Interactive Polymers, Institute of Technical and Macromolecular Chemistry (ITMC) RWTH Aachen University, Worringerweg 2, 52074, Aachen, Germany
| | - Susanne Braun
- DWI - Leibniz Institute for Interactive Materials e. V. RWTH Aachen University, Forckenbeckstr. 50, 52074, Aachen, Germany
- Functional and Interactive Polymers, Institute of Technical and Macromolecular Chemistry (ITMC) RWTH Aachen University, Worringerweg 2, 52074, Aachen, Germany
| | - Andrij Pich
- DWI - Leibniz Institute for Interactive Materials e. V. RWTH Aachen University, Forckenbeckstr. 50, 52074, Aachen, Germany
- Functional and Interactive Polymers, Institute of Technical and Macromolecular Chemistry (ITMC) RWTH Aachen University, Worringerweg 2, 52074, Aachen, Germany
- Aachen Maastricht Institute for Biobased Materials (AMIBM), Maastricht University, Brightlands Chemelot Campus, Urmonderbaan 22, Geleen, 6167 RD, Netherlands
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26
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Chiang M, Lin Y, Zhao W, Liu H, Hsu R, Chou T, Lu T, Lee I, Liao L, Chiou S, Chu L, Hu S. In Situ Forming of Nitric Oxide and Electric Stimulus for Nerve Therapy by Wireless Chargeable Gold Yarn-Dynamos. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2303566. [PMID: 37867218 PMCID: PMC10667856 DOI: 10.1002/advs.202303566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 09/14/2023] [Indexed: 10/24/2023]
Abstract
Endogenous signals, namely nitric oxide (NO) and electrons, play a crucial role in regulating cell fate as well as the vascular and neuronal systems. Unfortunately, utilizing NO and electrical stimulation in clinical settings can be challenging due to NO's short half-life and the invasive electrodes required for electrical stimulation. Additionally, there is a lack of tools to spatiotemporally control gas release and electrical stimulation. To address these issues, an "electromagnetic messenger" approach that employs on-demand high-frequency magnetic field (HFMF) to trigger NO release and electrical stimulation for restoring brain function in cases of traumatic brain injury is introduced. The system comprises a NO donor (poly(S-nitrosoglutathione), pGSNO)-conjugated on a gold yarn-dynamos (GY) and embedded in an implantable silk in a microneedle. When subjected to HFMF, conductive GY induces eddy currents that stimulate the release of NO from pGSNO. This process significantly enhances neural stem cell (NSC) synapses' differentiation and growth. The combined strategy of using NO and electrical stimulation to inhibit inflammation, angiogenesis, and neuronal interrogation in traumatic brain injury is demonstrated in vivo.
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Affiliation(s)
- Min‐Ren Chiang
- Department of Biomedical Engineering and Environmental SciencesNational Tsing Hua UniversityHsinchu300044Taiwan
| | - Ya‐Hui Lin
- Department of Biomedical Engineering and Environmental SciencesNational Tsing Hua UniversityHsinchu300044Taiwan
- Brain Research CenterNational Tsing Hua UniversityHsinchu300044Taiwan
| | - Wei‐Jie Zhao
- Department of Biomedical Engineering and Environmental SciencesNational Tsing Hua UniversityHsinchu300044Taiwan
| | - Hsiu‐Ching Liu
- Department of Biomedical Engineering and Environmental SciencesNational Tsing Hua UniversityHsinchu300044Taiwan
| | - Ru‐Siou Hsu
- Department of ChemistryStanford UniversityStanfordCA94305USA
| | - Tsu‐Chin Chou
- Institute of Analytical and Environmental SciencesNational Tsing Hua UniversityHsinchu300044Taiwan
| | - Tsai‐Te Lu
- Institute of Biomedical EngineeringNational Tsing Hua UniversityHsinchu300044Taiwan
- Department of ChemistryNational Tsing Hua UniversityHsinchu300044Taiwan
- Department of ChemistryChung Yuan Christian UniversityTaoyuan320314Taiwan
| | - I‐Chi Lee
- Department of Biomedical Engineering and Environmental SciencesNational Tsing Hua UniversityHsinchu300044Taiwan
| | - Lun‐De Liao
- Institute of Biomedical Engineering and NanomedicineNational Health Research InstitutesMiaoli County35053Taiwan
| | - Shih‐Hwa Chiou
- Institute of PharmacologyCollege of MedicineNational Yang Ming Chiao Tung UniversityTaipei112304Taiwan
- Department of Medical ResearchTaipei Veterans General HospitalTaipei112201Taiwan
| | - Li‐An Chu
- Department of Biomedical Engineering and Environmental SciencesNational Tsing Hua UniversityHsinchu300044Taiwan
- Brain Research CenterNational Tsing Hua UniversityHsinchu300044Taiwan
| | - Shang‐Hsiu Hu
- Department of Biomedical Engineering and Environmental SciencesNational Tsing Hua UniversityHsinchu300044Taiwan
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27
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Taravatfard AZ, Ceballos-Gonzalez C, Siddique AB, Bolivar-Monsalve J, Madadelahi M, Trujillo-de Santiago G, Moisés Alvarez M, Pramanick AK, Martinez Guerra E, Kulinsky L, Madou MJ, Martinez SO, Ray M. Nitrogen-functionalized graphene quantum dot incorporated GelMA microgels as fluorescent 3D-tissue Constructs. NANOSCALE 2023; 15:16277-16286. [PMID: 37650749 DOI: 10.1039/d3nr02612d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
Biopolymer microgels present many opportunities in biomedicine and tissue engineering. To understand their in vivo behavior in therapeutic interventions, long-term monitoring is critical, which is usually achieved by incorporating fluorescent materials within the hydrogel matrix. Current research is limited due to issues concerning the biocompatibility and instability of the conventional fluorescent species, which also tend to adversely affect the bio-functionality of the hydrogels. Here, we introduce a microfluidic-based approach to generate nitrogen-functionalized graphene quantum dot (NGQD) incorporated gelatin methacryloyl (GelMA) hydrogel microspheres, capable of long-term monitoring while preserving or enhancing the other favorable features of 3D cell encapsulation. A multilayer droplet-based microfluidic device was designed and fabricated to make monodisperse NGQD-loaded GelMA hydrogel microspheres encapsulating skeletal muscle cells (C2C12). Control over the sizes of microspheres could be achieved by tuning the flow rates in the microfluidic device. Skeletal muscle cells encapsulated in these microgels exhibited high cell viability from day 1 (82.9 ± 6.50%) to day 10 (92.1 ± 3.90%). The NGQD-loaded GelMA microgels encapsulating the cells demonstrated higher metabolic activity compared to the GelMA microgels. Presence of sarcomeric α-actin was verified by immunofluorescence staining on day 10. A fluorescence signal was observed from the NGQD-loaded microgels during the entire period of the study. The investigation reveals the advantages of integrating NGQDs in microgels for non-invasive imaging and monitoring of cell-laden microspheres and presents new opportunities for future therapeutic applications.
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Affiliation(s)
- Aida Zahra Taravatfard
- School of Engineering and Sciences, Tecnológico de Monterrey, Monterrey, 64849, Mexico.
- Department of Mechanical and Aerospace Engineering, University of California, Irvine, CA 92697, USA
| | | | - Abu Bakar Siddique
- School of Engineering and Sciences, Tecnológico de Monterrey, Monterrey, 64849, Mexico.
| | | | - Masoud Madadelahi
- School of Engineering and Sciences, Tecnológico de Monterrey, Monterrey, 64849, Mexico.
| | - Grissel Trujillo-de Santiago
- Centro de Biotecnología-FEMSA, Tecnológico de Monterrey, Monterrey 64849, Mexico
- Departamento de Ingeniería Mecatrónica y Eléctrica, Tecnológico de Monterrey, Monterrey 64849, Mexico
| | - Mario Moisés Alvarez
- Centro de Biotecnología-FEMSA, Tecnológico de Monterrey, Monterrey 64849, Mexico
- Departamento de Ingeniería Mecatrónica y Eléctrica, Tecnológico de Monterrey, Monterrey 64849, Mexico
| | | | - Eduardo Martinez Guerra
- Centro de Investigaciones en Materiales Avanzados, CIMAV Unidad Monterrey, Alianza Norte 202, Apodaca, Nuevo León, C.P. 66628, Mexico
| | - Lawrence Kulinsky
- Department of Mechanical and Aerospace Engineering, University of California, Irvine, CA 92697, USA
| | - Marc J Madou
- School of Engineering and Sciences, Tecnológico de Monterrey, Monterrey, 64849, Mexico.
- Department of Mechanical and Aerospace Engineering, University of California, Irvine, CA 92697, USA
| | - Sergio O Martinez
- School of Engineering and Sciences, Tecnológico de Monterrey, Monterrey, 64849, Mexico.
| | - Mallar Ray
- School of Engineering and Sciences, Tecnológico de Monterrey, Monterrey, 64849, Mexico.
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Yalçın MB, Bora ES, Erdoğan MA, Çakır A, Erbaş O. The Effect of Adipose-Derived Mesenchymal Stem Cells on Peripheral Nerve Damage in a Rodent Model. J Clin Med 2023; 12:6411. [PMID: 37835055 PMCID: PMC10573691 DOI: 10.3390/jcm12196411] [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: 08/07/2023] [Revised: 09/27/2023] [Accepted: 10/07/2023] [Indexed: 10/15/2023] Open
Abstract
Peripheral nerve damage is a significant clinical problem with limited therapeutic options. Adipose-derived mesenchymal stem cells (ADSCs) have emerged as a promising therapeutic approach due to their regenerative potential. However, the underlying mechanisms by which ADSCs promote peripheral nerve regeneration remain unclear. In this study, we investigated the role of syndecan-1 and heat shock protein 70 (HSP-70) in mediating the regenerative effects of ADSCs on peripheral nerves. ADSCs were characterized and isolated from the adipose tissue of rats. In vitro experiments were conducted to evaluate the ability of ADSCs to secrete syndecan-1 and HSP-70 in response to stress conditions. To evaluate the therapeutic potential of ADSCs, rats with sciatic nerve injuries were treated with ADSCs and assessed for functional recovery, nerve regeneration, and changes in syndecan-1 and HSP-70 levels. Regeneration was evaluated with Electromyography (EMG) histology. The results showed that ADSCs could secrete syndecan-1 and HSP-70 in response to stress conditions. Furthermore, ADSC treatment significantly improved functional recovery and nerve regeneration and increased syndecan-1 and HSP-70 levels in the injured nerve. On the other hand, ADSCs make improvements histologically through the influence of Nerve growth factor (NGF), Malondialdehyde (MDA), and EMG.
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Affiliation(s)
- Mehmet Burak Yalçın
- Department of Orthopedics and Traumatology, Bahcelievler Memorial Hospital, Istanbul 34180, Turkey;
| | - Ejder Saylav Bora
- Department of Emergency Medicine, Izmir Atatürk Research and Training Hospital, Izmir 35360, Turkey
| | - Mümin Alper Erdoğan
- Department of Physiology, Faculty of Medicine, Izmir Kâtip Çelebi University, Izmir 35620, Turkey;
| | - Adem Çakır
- Department of Emergency Medicine, Çanakkale Mehmet Akif Ersoy State Hospital, Çanakkale 17100, Turkey;
| | - Oytun Erbaş
- Department of Physiology, Demiroğlu Bilim University, Istanbul 34394, Turkey;
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29
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Lee HP, Davis R, Wang TC, Deo KA, Cai KX, Alge DL, Lele TP, Gaharwar AK. Dynamically Cross-Linked Granular Hydrogels for 3D Printing and Therapeutic Delivery. ACS APPLIED BIO MATERIALS 2023; 6:3683-3695. [PMID: 37584641 PMCID: PMC10863386 DOI: 10.1021/acsabm.3c00337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 07/13/2023] [Indexed: 08/17/2023]
Abstract
Granular hydrogels have recently emerged as promising biomaterials for tissue engineering and 3D-printing applications, addressing the limitations of bulk hydrogels while exhibiting desirable properties such as injectability and high porosity. However, their structural stability can be improved with post-injection interparticle cross-linking. In this study, we developed granular hydrogels with interparticle cross-linking through reversible and dynamic covalent bonds. We fragmented photo-cross-linked bulk hydrogels to produce aldehyde or hydrazide-functionalized microgels using chondroitin sulfate. Mixing these microgels facilitated interparticle cross-linking through reversible hydrazone bonds, providing shear-thinning and self-healing properties for injectability and 3D printing. The resulting granular hydrogels displayed high mechanical stability without the need for secondary cross-linking. Furthermore, the porosity and sustained release of growth factors from these hydrogels synergistically enhanced cell recruitment. Our study highlights the potential of reversible interparticle cross-linking for designing injectable and 3D printable therapeutic delivery scaffolds using granular hydrogels. Overall, our study highlights the potential of reversible interparticle cross-linking to improve the structural stability of granular hydrogels, making them an effective biomaterial for use in tissue engineering and 3D-printing applications.
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Affiliation(s)
- Hung-Pang Lee
- Biomedical
Engineering, College of Engineering, Texas
A&M University, College
Station, Texas 77843, United States
| | - Ryan Davis
- Biomedical
Engineering, College of Engineering, Texas
A&M University, College
Station, Texas 77843, United States
| | - Ting-Ching Wang
- Chemical
Engineering, College of Engineering, Texas
A&M University, College
Station, Texas 77843, United States
| | - Kaivalya A. Deo
- Biomedical
Engineering, College of Engineering, Texas
A&M University, College
Station, Texas 77843, United States
| | - Kathy Xiao Cai
- Biomedical
Engineering, College of Engineering, Texas
A&M University, College
Station, Texas 77843, United States
| | - Daniel L. Alge
- Biomedical
Engineering, College of Engineering, Texas
A&M University, College
Station, Texas 77843, United States
- Material
Science and Engineering, College of Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Tanmay P. Lele
- Biomedical
Engineering, College of Engineering, Texas
A&M University, College
Station, Texas 77843, United States
- Chemical
Engineering, College of Engineering, Texas
A&M University, College
Station, Texas 77843, United States
| | - Akhilesh K. Gaharwar
- Biomedical
Engineering, College of Engineering, Texas
A&M University, College
Station, Texas 77843, United States
- Material
Science and Engineering, College of Engineering, Texas A&M University, College Station, Texas 77843, United States
- Interdisciplinary
Graduate Program in Genetics & Genomics, Texas A&M University, College Station, Texas 77843, United States
- Center
for Remote Health Technologies and Systems, Texas A&M University, College Station, Texas 77843, United States
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30
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Ribezzi D, Gueye M, Florczak S, Dusi F, de Vos D, Manente F, Hierholzer A, Fussenegger M, Caiazzo M, Blunk T, Malda J, Levato R. Shaping Synthetic Multicellular and Complex Multimaterial Tissues via Embedded Extrusion-Volumetric Printing of Microgels. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2301673. [PMID: 37269532 DOI: 10.1002/adma.202301673] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 05/24/2023] [Indexed: 06/05/2023]
Abstract
In living tissues, cells express their functions following complex signals from their surrounding microenvironment. Capturing both hierarchical architectures at the micro- and macroscale, and anisotropic cell patterning remains a major challenge in bioprinting, and a bottleneck toward creating physiologically-relevant models. Addressing this limitation, a novel technique is introduced, termed Embedded Extrusion-Volumetric Printing (EmVP), converging extrusion-bioprinting and layer-less, ultra-fast volumetric bioprinting, allowing spatially pattern multiple inks/cell types. Light-responsive microgels are developed for the first time as bioresins (µResins) for light-based volumetric bioprinting, providing a microporous environment permissive for cell homing and self-organization. Tuning the mechanical and optical properties of gelatin-based microparticles enables their use as support bath for suspended extrusion printing, in which features containing high cell densities can be easily introduced. µResins can be sculpted within seconds with tomographic light projections into centimeter-scale, granular hydrogel-based, convoluted constructs. Interstitial microvoids enhanced differentiation of multiple stem/progenitor cells (vascular, mesenchymal, neural), otherwise not possible with conventional bulk hydrogels. As proof-of-concept, EmVP is applied to create complex synthetic biology-inspired intercellular communication models, where adipocyte differentiation is regulated by optogenetic-engineered pancreatic cells. Overall, EmVP offers new avenues for producing regenerative grafts with biological functionality, and for developing engineered living systems and (metabolic) disease models.
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Affiliation(s)
- Davide Ribezzi
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht University, Utrecht, 3584 CX, The Netherlands
| | - Marième Gueye
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht University, Utrecht, 3584 CX, The Netherlands
| | - Sammy Florczak
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht University, Utrecht, 3584 CX, The Netherlands
| | - Franziska Dusi
- Department of Trauma, Hand, Plastic and Reconstructive Surgery, University Hospital Würzburg, Oberdürrbacher Str. 6, 97080, Würzburg, Germany
| | - Dieuwke de Vos
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht University, Utrecht, 3584 CX, The Netherlands
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS), Utrecht University, Universiteitsweg 99, Utrecht, 3584 CG, The Netherlands
| | - Francesca Manente
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS), Utrecht University, Universiteitsweg 99, Utrecht, 3584 CG, The Netherlands
- Department of Molecular Medicine and Medical Biotechnology, University of Naples "Federico II", Via Pansini 5, Naples, 80131, Italy
| | - Andreas Hierholzer
- Department of Biosystems Science and Engineering, ETH Zurich, Mattenstrasse 26, Basel, CH-4058, Switzerland
| | - Martin Fussenegger
- Department of Biosystems Science and Engineering, ETH Zurich, Mattenstrasse 26, Basel, CH-4058, Switzerland
- Faculty of Science, University of Basel, Mattenstrasse 26, Basel, CH-4058, Switzerland
| | - Massimiliano Caiazzo
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS), Utrecht University, Universiteitsweg 99, Utrecht, 3584 CG, The Netherlands
- Department of Molecular Medicine and Medical Biotechnology, University of Naples "Federico II", Via Pansini 5, Naples, 80131, Italy
| | - Torsten Blunk
- Department of Trauma, Hand, Plastic and Reconstructive Surgery, University Hospital Würzburg, Oberdürrbacher Str. 6, 97080, Würzburg, Germany
| | - Jos Malda
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht University, Utrecht, 3584 CX, The Netherlands
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, 3584 CT, The Netherlands
| | - Riccardo Levato
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht University, Utrecht, 3584 CX, The Netherlands
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, 3584 CT, The Netherlands
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31
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Lin MH, Linares I, Ramirez C, Ramirez YC, Sarkar D. Mechanomorphological Guidance of Colloidal Gel Regulates Cell Morphogenesis. Macromol Biosci 2023; 23:e2300122. [PMID: 37143285 PMCID: PMC10524704 DOI: 10.1002/mabi.202300122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 04/30/2023] [Indexed: 05/06/2023]
Abstract
Microstructural morphology of the extracellular matrix guides the organization of cells in 3D. However, current biomaterials-based matrices cannot provide distinct spatial cues through their microstructural morphology due to design constraints. To address this, colloidal gels are developed as 3D matrices with distinct microstructure by aggregating ionic polyurethane colloids via electrostatic screening. Due to the defined orientation of interconnected particles, positively charged colloids form extended strands resulting in a dense microstructure whereas negatively charged colloids form compact aggregates with localized large voids. Chondrogenesis of human mesenchymal stem cells (MSCs) and endothelial morphogenesis of human endothelial cells (ECs) are examined in these colloidal gels. MSCs show enhanced chondrogenic response in dense colloidal gel due to their spatial organization achieved by balancing the cell-cell and cell-matrix interactions compared to porous gels where cells are mainly clustered. ECs tend to form relatively elongated cellular networks in dense colloidal gel compared to porous gels. Additionally, the role of matrix stiffness and viscoelasticity in the morphogenesis of MSCs and ECs are analyzed with respect to microstructural morphology. Overall, these results demonstrate that colloidal gels can provide spatial cues through their microstructural morphology and in correlation with matrix mechanics for cell morphogenesis.
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Affiliation(s)
- Meng Hsuan Lin
- Department of Biomedical Engineering, University at Buffalo, The State University of New York, Buffalo, NY 14260, USA
| | - Isabelle Linares
- Department of Biomedical Engineering, University at Buffalo, The State University of New York, Buffalo, NY 14260, USA
| | - Cesar Ramirez
- Department of Biomedical Engineering, University at Buffalo, The State University of New York, Buffalo, NY 14260, USA
| | - Yanni Correa Ramirez
- Department of Biomedical Engineering, University at Buffalo, The State University of New York, Buffalo, NY 14260, USA
| | - Debanjan Sarkar
- Department of Biomedical Engineering, University at Buffalo, The State University of New York, Buffalo, NY 14260, USA
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, NY 14260, USA
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32
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Widener AE, Roberts A, Phelps EA. Single versus dual microgel species for forming guest-host microporous annealed particle PEG-MAL hydrogel. J Biomed Mater Res A 2023; 111:1379-1389. [PMID: 37010360 PMCID: PMC10909382 DOI: 10.1002/jbm.a.37540] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 03/03/2023] [Accepted: 03/20/2023] [Indexed: 04/04/2023]
Abstract
Inter-particle secondary crosslinks allow microporous annealed particle (MAP) hydrogels to be formed. Methods to introduce secondary crosslinking networks in MAP hydrogels include particle jamming, annealing with covalent bonds, and reversible noncovalent interactions. Here, we investigate the effect of two different approaches to secondary crosslinking of polyethylene glycol (PEG) microgels via reversible guest-host interactions. We generated a dual-particle MAP-PEG hydrogel using two species of PEG microgels, one functionalized with the guest molecule, adamantane, and the other with the host molecule, β-cyclodextrin (Inter-MAP-PEG). In a different approach, a mono-particle MAP-PEG hydrogel was generated using one species of microgel functionalized with both guest and host molecules (Intra-MAP-PEG). The Intra-MAP-PEG formed a homogenous distribution due to the single type of microgels used. We then compared the mechanical properties of these two types of MAP-PEG hydrogels and found that Intra-MAP-PEG resulted in significantly softer gels with lower yield stress. We investigated the effect of intra-particle guest-host interactions through titrated weight percentage and the concentration of functional groups added to the hydrogel. We found that there was an ideal concentration of guest-host molecules that enables intra- and inter-particle guest-host interactions with sufficient covalent crosslinking. Based on these studies, Intra-MAP-PEG provides a homogeneous guest-host hydrogel that is shear-thinning with reversible secondary crosslinking.
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Affiliation(s)
- Adrienne E. Widener
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, USA
| | - Abilene Roberts
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, USA
| | - Edward A. Phelps
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, USA
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33
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El-Husseiny HM, Mady EA, El-Dakroury WA, Doghish AS, Tanaka R. Stimuli-responsive hydrogels: smart state of-the-art platforms for cardiac tissue engineering. Front Bioeng Biotechnol 2023; 11:1174075. [PMID: 37449088 PMCID: PMC10337592 DOI: 10.3389/fbioe.2023.1174075] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Accepted: 06/15/2023] [Indexed: 07/18/2023] Open
Abstract
Biomedicine and tissue regeneration have made significant advancements recently, positively affecting the whole healthcare spectrum. This opened the way for them to develop their applications for revitalizing damaged tissues. Thus, their functionality will be restored. Cardiac tissue engineering (CTE) using curative procedures that combine biomolecules, biomimetic scaffolds, and cells plays a critical part in this path. Stimuli-responsive hydrogels (SRHs) are excellent three-dimensional (3D) biomaterials for tissue engineering (TE) and various biomedical applications. They can mimic the intrinsic tissues' physicochemical, mechanical, and biological characteristics in a variety of ways. They also provide for 3D setup, adequate aqueous conditions, and the mechanical consistency required for cell development. Furthermore, they function as competent delivery platforms for various biomolecules. Many natural and synthetic polymers were used to fabricate these intelligent platforms with innovative enhanced features and specialized capabilities that are appropriate for CTE applications. In the present review, different strategies employed for CTE were outlined. The light was shed on the limitations of the use of conventional hydrogels in CTE. Moreover, diverse types of SRHs, their characteristics, assembly and exploitation for CTE were discussed. To summarize, recent development in the construction of SRHs increases their potential to operate as intelligent, sophisticated systems in the reconstruction of degenerated cardiac tissues.
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Affiliation(s)
- Hussein M. El-Husseiny
- Laboratory of Veterinary Surgery, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Japan
- Department of Surgery, Anesthesiology, and Radiology, Faculty of Veterinary Medicine, Benha University, Benha, Egypt
| | - Eman A. Mady
- Laboratory of Veterinary Physiology, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Japan
- Department of Animal Hygiene, Behavior and Management, Faculty of Veterinary Medicine, Benha University, Benha, Egypt
| | - Walaa A. El-Dakroury
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Badr University in Cairo (BUC), Badr, Egypt
| | - Ahmed S. Doghish
- Department of Biochemistry, Faculty of Pharmacy, Badr University in Cairo (BUC), Badr, Egypt
- Biochemistry and Molecular Biology Department, Faculty of Pharmacy (Boys), Al-Azhar University, Cairo, Egypt
| | - Ryou Tanaka
- Laboratory of Veterinary Surgery, Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu, Japan
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34
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Wu W, Dong Y, Liu H, Jiang X, Yang L, Luo J, Hu Y, Gou M. 3D printed elastic hydrogel conduits with 7,8-dihydroxyflavone release for peripheral nerve repair. Mater Today Bio 2023; 20:100652. [PMID: 37214548 PMCID: PMC10199216 DOI: 10.1016/j.mtbio.2023.100652] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 04/17/2023] [Accepted: 04/29/2023] [Indexed: 05/24/2023] Open
Abstract
Nerve guide conduit is a promising treatment for long gap peripheral nerve injuries, yet its efficacy is limited. Drug-releasable scaffolds may provide reliable platforms to build a regenerative microenvironment for nerve recovery. In this study, an elastic hydrogel conduit encapsulating with prodrug nanoassemblies is fabricated by a continuous 3D printing technique for promoting nerve regeneration. The bioactive hydrogel is comprised of gelatin methacryloyl (GelMA) and silk fibroin glycidyl methacrylate (SF-MA), exhibiting positive effects on adhesion, proliferation, and migration of Schwann cells. Meanwhile, 7,8-dihydroxyflavone (7,8-DHF) prodrug nanoassemblies with high drug-loading capacities are developed through self-assembly of the lipophilic prodrug and loaded into the GelMA/SF-MA hydrogel. The drug loading conduit could sustainedly release 7,8-DHF to facilitate neurite elongation. A 12 mm nerve defect model is established for therapeutic efficiency evaluation by implanting the conduit through surgical suturing with rat sciatic nerve. The electrophysiological, morphological, and histological assessments indicate that this conduit can promote axon regeneration, remyelination, and function recovery by providing a favorable microenvironment. These findings implicate that the GelMA/SF-MA conduit with 7,8-DHF release has potentials in the treatment of long-gap peripheral nerve injury.
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Affiliation(s)
- Wenbi Wu
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yinchu Dong
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Haofan Liu
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Xuebing Jiang
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Ling Yang
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Jing Luo
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yu Hu
- Department of Neurosurgery, West China Hospital, Sichuan University, Chengdu, Sichuan province, China
| | - Maling Gou
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
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35
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Liu Y, Suarez-Arnedo A, Caston E, Riley L, Schneider M, Segura T. Exploring the Role of Spatial Confinement in Immune Cell Recruitment and Regeneration of Skin Wounds. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.04.30.538879. [PMID: 37162980 PMCID: PMC10168413 DOI: 10.1101/2023.04.30.538879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Microporous annealed particle (MAP) scaffolds are injectable granular materials comprised of micron sized hydrogel particles (microgels). The diameter of these microgels directly determines the size of the interconnected void space between particles where infiltrating or encapsulated cells reside. This tunable porosity allows us to use MAP scaffolds to study the impact of spatial confinement (SC) on both cellular behaviors and the host response to biomaterials. Despite previous studies showing that pore size and SC influence cellular phenotypes, including mitigating the macrophage inflammatory response, there is still a gap in knowledge regarding how SC within a biomaterial modulates immune cell recruitment in vivo in wounds and implants. Thus, we studied the immune cell profile within confined and unconfined biomaterials using small (40 μm), medium (70 μm), and large (130 μm) diameter spherical microgels, respectively. We discovered that MAP scaffolds imparted regenerative wound healing with an IgG1-biased Th2 response. MAP scaffolds generated from 130 μm diameter microgels have a median pore size that can accommodate ∼40 µm diameter spheres induced a more balanced pro-regenerative macrophage response and better wound healing outcomes with more mature collagen regeneration and reduced levels of inflammation.
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36
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Muir VG, Weintraub S, Dhand AP, Fallahi H, Han L, Burdick JA. Influence of Microgel and Interstitial Matrix Compositions on Granular Hydrogel Composite Properties. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2206117. [PMID: 36717272 PMCID: PMC10074081 DOI: 10.1002/advs.202206117] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 12/06/2022] [Indexed: 06/18/2023]
Abstract
Granular hydrogels are an emerging class of biomaterials formed by jamming hydrogel microparticles (i.e., microgels). These materials have many advantageous properties that can be tailored through microgel design and extent of packing. To enhance the range of properties, granular composites can be formed with a hydrogel interstitial matrix between the packed microgels, allowing for material flow and then stabilization after crosslinking. This approach allows for distinct compartments (i.e., microgels and interstitial space) with varied properties to engineer complex material behaviors. However, a thorough investigation of how the compositions and ratios of microgels and interstitial matrices influence material properties has not been performed. Herein, granular hydrogel composites are fabricated by combining fragmented hyaluronic acid (HA) microgels with interstitial matrices consisting of photocrosslinkable HA. Microgels of varying compressive moduli (10-70 kPa) are combined with interstitial matrices (0-30 vol.%) with compressive moduli varying from 2-120 kPa. Granular composite structure (confocal imaging), mechanics (local and bulk), flow behavior (rheology), and printability are thoroughly assessed. Lastly, variations in the interstitial matrix chemistry (covalent vs guest-host) and microgel degradability are investigated. Overall, this study describes the influence of granular composite composition on structure and mechanical properties of granular hydrogels towards informed designs for future applications.
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Affiliation(s)
- Victoria G. Muir
- Department of BioengineeringSchool of Engineering and Applied SciencesUniversity of PennsylvaniaPhiladelphiaPA19104USA
| | - Shoshana Weintraub
- Department of BioengineeringSchool of Engineering and Applied SciencesUniversity of PennsylvaniaPhiladelphiaPA19104USA
| | - Abhishek P. Dhand
- Department of BioengineeringSchool of Engineering and Applied SciencesUniversity of PennsylvaniaPhiladelphiaPA19104USA
| | - Hooman Fallahi
- School of Biomedical EngineeringScience and Health SystemsDrexel UniversityPhiladelphiaPA19104USA
| | - Lin Han
- School of Biomedical EngineeringScience and Health SystemsDrexel UniversityPhiladelphiaPA19104USA
| | - Jason A. Burdick
- Department of BioengineeringSchool of Engineering and Applied SciencesUniversity of PennsylvaniaPhiladelphiaPA19104USA
- BioFrontiers InstituteUniversity of Colorado BoulderBoulderCO80303USA
- Department of Chemical and Biological EngineeringCollege of Engineering and Applied ScienceUniversity of Colorado BoulderBoulderCO80303USA
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37
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Shi T, Niu D, You J, Li S, Li G, Ren K, Yan S, Xu G, Yin J. Injectable macro-porous chitosan/polyethylene glycol-silicotungstic acid double-network hydrogels based on "smashed gels recombination" strategy for cartilage tissue engineering. Int J Biol Macromol 2023; 233:123541. [PMID: 36740115 DOI: 10.1016/j.ijbiomac.2023.123541] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Revised: 01/10/2023] [Accepted: 01/31/2023] [Indexed: 02/05/2023]
Abstract
The lack of interconnected macro-porous structure of most injectable hydrogels lead to poor cell and tissue infiltration. Herein, we present the fabrication of injectable macro-porous hydrogels based on "smashed gels recombination" strategy. Chitosan/polyethylene glycol-silicotungstic acid (CS/PEG-SiW) double-network hydrogels were prepared via dual dynamic interactions. The bulk CS/PEG-SiW hydrogels were then smashed into micro-hydrogels with average sizes ranging from 47.6 to 63.8 μm by mechanical fragmentation. The CS/PEG-SiW micro-hydrogels could be continuously injected and rapidly recombined into a stable porous hydrogel based on the dual dynamic interactions between micro-hydrogels. The average pore size of the recombined porous CS/PEG-SiW hydrogels ranged from 52 to 184 μm. The storage modulus, compress modulus and maximum compressive strain of the recombined porous CS/PEG-SiW1.0 hydrogels reached about 47.2 %, 28.2 % and 127.6 % of the values for their corresponding bulk hydrogels, respectively. The recombined porous hydrogels were cytocompatible and could effectively support proliferation and chondrogenic differentiation of bone marrow mesenchymal stem cells (BMSCs). In a rat cartilage defect model, recombined porous CS/PEG-SiW hydrogels could promote cartilage regeneration. Hematoxylin and eosin (H&E), Safranin-O/Fast green and immunohistochemical staining confirmed the accumulation of glycosaminoglycans (GAG) and type II collagen (Col II) in regenerated cartilage.
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Affiliation(s)
- Tuhe Shi
- Department of Polymer Materials, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, PR China
| | - Dongyang Niu
- Department of Orthopedic Surgery, Spine Center, Changzheng Hospital, Second Military Medical University, Shanghai 200003, PR China
| | - Jiahui You
- Department of Polymer Materials, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, PR China
| | - Shuang Li
- Department of Polymer Materials, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, PR China
| | - Guifei Li
- Department of Polymer Materials, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, PR China
| | - Kaixuan Ren
- Department of Polymer Materials, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, PR China
| | - Shifeng Yan
- Department of Polymer Materials, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, PR China.
| | - Guohua Xu
- Department of Orthopedic Surgery, Spine Center, Changzheng Hospital, Second Military Medical University, Shanghai 200003, PR China.
| | - Jingbo Yin
- Department of Polymer Materials, School of Materials Science and Engineering, Shanghai University, Shanghai 200444, PR China.
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Li Z, Jiang Z, Lu L, Liu Y. Microfluidic Manipulation for Biomedical Applications in the Central and Peripheral Nervous Systems. Pharmaceutics 2023; 15:pharmaceutics15010210. [PMID: 36678839 PMCID: PMC9862045 DOI: 10.3390/pharmaceutics15010210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 01/04/2023] [Accepted: 01/04/2023] [Indexed: 01/11/2023] Open
Abstract
Physical injuries and neurodegenerative diseases often lead to irreversible damage to the organizational structure of the central nervous system (CNS) and peripheral nervous system (PNS), culminating in physiological malfunctions. Investigating these complex and diverse biological processes at the macro and micro levels will help to identify the cellular and molecular mechanisms associated with nerve degeneration and regeneration, thereby providing new options for the development of new therapeutic strategies for the functional recovery of the nervous system. Due to their distinct advantages, modern microfluidic platforms have significant potential for high-throughput cell and organoid cultures in vitro, the synthesis of a variety of tissue engineering scaffolds and drug carriers, and observing the delivery of drugs at the desired speed to the desired location in real time. In this review, we first introduce the types of nerve damage and the repair mechanisms of the CNS and PNS; then, we summarize the development of microfluidic platforms and their application in drug carriers. We also describe a variety of damage models, tissue engineering scaffolds, and drug carriers for nerve injury repair based on the application of microfluidic platforms. Finally, we discuss remaining challenges and future perspectives with regard to the promotion of nerve injury repair based on engineered microfluidic platform technology.
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Suturin AC, Krüger AJD, Neidig K, Klos N, Dolfen N, Bund M, Gronemann T, Sebers R, Manukanc A, Yazdani G, Kittel Y, Rommel D, Haraszti T, Köhler J, De Laporte L. Annealing High Aspect Ratio Microgels into Macroporous 3D Scaffolds Allows for Higher Porosities and Effective Cell Migration. Adv Healthc Mater 2022; 11:e2200989. [PMID: 36100464 DOI: 10.1002/adhm.202200989] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 08/25/2022] [Indexed: 01/28/2023]
Abstract
Growing millimeter-scaled functional tissue remains a major challenge in the field of tissue engineering. Therefore, microporous annealed particles (MAPs) are emerging as promising porous biomaterials that are formed by assembly of microgel building blocks. To further vary the pore size and increase overall MAP porosity of mechanically stable scaffolds, rod-shaped microgels with high aspect ratios up to 20 are chemically interlinked into highly porous scaffolds. Polyethylene glycol based microgels (width 10 µm, lengths up to 200 µm) are produced via in-mold polymerization and covalently interlinked into stable 3D scaffolds via epoxy-amine chemistry. For the first time, MAP porosities can be enhanced by increasing the microgel aspect ratio (mean pore sizes ranging from 39 to 82 µm, porosities from 65 to 90%). These porosities are significantly higher compared to constructs made from spherical or lower aspect ratio rod-shaped microgels. Rapid filling of the pores by either murine or primary human fibroblasts is ensured as cells migrate and grow extensively into these scaffolds. Overall, this study demonstrates that highly porous, stable macroporous hydrogels can be achieved with a very low partial volume of synthetic, high aspect ratio microgels, leading to large empty volumes available for cell ingrowth and cell-cell interactions.
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Affiliation(s)
- Alisa C Suturin
- DWI - Leibniz-Institute for Interactive Materials, Forckenbeckstraße 50, 52074, Aachen, Germany.,Institute of Technical and Macromolecular Chemistry (ITMC), Polymeric Biomaterials, RWTH University Aachen, Worringerweg 2, 52074, Aachen, Germany
| | - Andreas J D Krüger
- DWI - Leibniz-Institute for Interactive Materials, Forckenbeckstraße 50, 52074, Aachen, Germany.,Institute of Technical and Macromolecular Chemistry (ITMC), Polymeric Biomaterials, RWTH University Aachen, Worringerweg 2, 52074, Aachen, Germany
| | - Kathrin Neidig
- DWI - Leibniz-Institute for Interactive Materials, Forckenbeckstraße 50, 52074, Aachen, Germany
| | - Nina Klos
- DWI - Leibniz-Institute for Interactive Materials, Forckenbeckstraße 50, 52074, Aachen, Germany
| | - Nina Dolfen
- DWI - Leibniz-Institute for Interactive Materials, Forckenbeckstraße 50, 52074, Aachen, Germany
| | - Michelle Bund
- DWI - Leibniz-Institute for Interactive Materials, Forckenbeckstraße 50, 52074, Aachen, Germany
| | - Till Gronemann
- DWI - Leibniz-Institute for Interactive Materials, Forckenbeckstraße 50, 52074, Aachen, Germany
| | - Rebecca Sebers
- DWI - Leibniz-Institute for Interactive Materials, Forckenbeckstraße 50, 52074, Aachen, Germany
| | - Anna Manukanc
- DWI - Leibniz-Institute for Interactive Materials, Forckenbeckstraße 50, 52074, Aachen, Germany
| | - Ghazaleh Yazdani
- DWI - Leibniz-Institute for Interactive Materials, Forckenbeckstraße 50, 52074, Aachen, Germany
| | - Yonca Kittel
- DWI - Leibniz-Institute for Interactive Materials, Forckenbeckstraße 50, 52074, Aachen, Germany.,Institute of Technical and Macromolecular Chemistry (ITMC), Polymeric Biomaterials, RWTH University Aachen, Worringerweg 2, 52074, Aachen, Germany
| | - Dirk Rommel
- DWI - Leibniz-Institute for Interactive Materials, Forckenbeckstraße 50, 52074, Aachen, Germany.,Institute of Technical and Macromolecular Chemistry (ITMC), Polymeric Biomaterials, RWTH University Aachen, Worringerweg 2, 52074, Aachen, Germany
| | - Tamás Haraszti
- DWI - Leibniz-Institute for Interactive Materials, Forckenbeckstraße 50, 52074, Aachen, Germany.,Institute of Technical and Macromolecular Chemistry (ITMC), Polymeric Biomaterials, RWTH University Aachen, Worringerweg 2, 52074, Aachen, Germany
| | - Jens Köhler
- DWI - Leibniz-Institute for Interactive Materials, Forckenbeckstraße 50, 52074, Aachen, Germany.,Institute of Technical and Macromolecular Chemistry (ITMC), Polymeric Biomaterials, RWTH University Aachen, Worringerweg 2, 52074, Aachen, Germany
| | - Laura De Laporte
- DWI - Leibniz-Institute for Interactive Materials, Forckenbeckstraße 50, 52074, Aachen, Germany.,Institute of Technical and Macromolecular Chemistry (ITMC), Polymeric Biomaterials, RWTH University Aachen, Worringerweg 2, 52074, Aachen, Germany.,Advanced Materials for Biomedicine (AMB), Institute of Applied Medical Engineering (AME), University Hospital RWTH Aachen, Center for Biohybrid Medical Systems (CMBS), Forckenbeckstraße 55, 52074, Aachen, Germany
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Meissner S, Raos B, Svirskis D. Hydrogels can control the presentation of growth factors and thereby improve their efficacy in tissue engineering. Eur J Pharm Biopharm 2022. [DOI: 10.1016/j.ejpb.2022.10.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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41
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Molley TG, Hung TT, Kilian KA. Cell-Laden Gradient Microgel Suspensions for Spatial Control of Differentiation During Biofabrication. Adv Healthc Mater 2022; 11:e2201122. [PMID: 35866537 PMCID: PMC9780160 DOI: 10.1002/adhm.202201122] [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] [Received: 05/12/2022] [Revised: 06/21/2022] [Indexed: 01/28/2023]
Abstract
During tissue development, stem and progenitor cells form functional tissue with high cellular diversity and intricate micro- and macro-architecture. Current approaches have attempted to replicate this process with materials cues or through spontaneous cell self-organization. However, cell-directed and materials-directed organization are required simultaneously to achieve biomimetic structure and function. Here, it is shown how integrating live adipose derived stem cells with gradient microgel suspensions steers divergent differentiation outcomes. Microgel matrices composed of small particles are found to promote adipogenic differentiation, while larger particles fostered increased cell spreading and osteogenic differentiation. Tuning the matrix formulation demonstrates that early cell adhesion and spreading dictate differentiation outcome. Combining small and large microgels into gradients spatially directs proliferation and differentiation over time. After 21 days of culture, osteogenic conditions foster significant mineralization within the individual microgels, thereby providing cell-directed changes in composition and mechanics within the gradient porous scaffold. Freeform printing of high-density cell suspensions is performed across these gradients to demonstrate the potential for hierarchical tissue biofabrication. Interstitial porosity influences cell expansion from the print and microgel size guides spatial differentiation, thereby providing scope to fabricate tissue gradients at multiple scales through integrated and printed cell populations.
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Affiliation(s)
- Thomas G Molley
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
- Australian Centre for NanoMedicine, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Tzong-Tyng Hung
- Biological Resources Imaging Laboratory, Mark Wainwright Analytical Centre, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Kristopher A Kilian
- School of Materials Science and Engineering, University of New South Wales, Sydney, NSW, 2052, Australia
- Australian Centre for NanoMedicine, University of New South Wales, Sydney, NSW, 2052, Australia
- School of Chemistry, University of New South Wales, Sydney, NSW, 2052, Australia
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Huang X, Wang Y, Wang T, Wen F, Liu S, Oudeng G. Recent advances in engineering hydrogels for niche biomimicking and hematopoietic stem cell culturing. Front Bioeng Biotechnol 2022; 10:1049965. [PMID: 36507253 PMCID: PMC9730123 DOI: 10.3389/fbioe.2022.1049965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Accepted: 11/07/2022] [Indexed: 11/25/2022] Open
Abstract
Hematopoietic stem cells (HSCs) provide a life-long supply of haemopoietic cells and are indispensable for clinical transplantation in the treatment of malignant hematological diseases. Clinical applications require vast quantities of HSCs with maintained stemness characteristics. Meeting this demand poses often insurmountable challenges for traditional culture methods. Creating a supportive artificial microenvironment for the culture of HSCs, which allows the expansion of the cells while maintaining their stemness, is becoming a new solution for the provision of these rare multipotent HSCs. Hydrogels with good biocompatibility, excellent hydrophilicity, tunable biochemical and biophysical properties have been applied in mimicking the hematopoietic niche for the efficient expansion of HSCs. This review focuses on recent progress in the use of hydrogels in this specialized application. Advanced biomimetic strategies use for the creation of an artificial haemopoietic niche are discussed, advances in combined use of hydrogel matrices and microfluidics, including the emerging organ-on-a-chip technology, are summarized. We also provide a brief description of novel stimulus-responsive hydrogels that are used to establish an intelligent dynamic cell microenvironment. Finally, current challenges and future perspectives of engineering hydrogels for HSC biomedicine are explored.
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Affiliation(s)
- Xiaochan Huang
- Department of Hematology and Oncology, Shenzhen Children’s Hospital, Shenzhen, Guangdong, China
| | - Yuting Wang
- Department of Hematology and Oncology, Shenzhen Children’s Hospital, Shenzhen, Guangdong, China,Shenzhen Children’s Hospital, China Medical University, Shenzhen, Guangdong, China
| | - Tianci Wang
- Department of Hematology and Oncology, Shenzhen Children’s Hospital, Shenzhen, Guangdong, China
| | - Feiqiu Wen
- Department of Hematology and Oncology, Shenzhen Children’s Hospital, Shenzhen, Guangdong, China,Shenzhen Children’s Hospital, China Medical University, Shenzhen, Guangdong, China,*Correspondence: Feiqiu Wen, ; Sixi Liu, ; Gerile Oudeng,
| | - Sixi Liu
- Department of Hematology and Oncology, Shenzhen Children’s Hospital, Shenzhen, Guangdong, China,*Correspondence: Feiqiu Wen, ; Sixi Liu, ; Gerile Oudeng,
| | - Gerile Oudeng
- Department of Hematology and Oncology, Shenzhen Children’s Hospital, Shenzhen, Guangdong, China,*Correspondence: Feiqiu Wen, ; Sixi Liu, ; Gerile Oudeng,
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Rojek K, Ćwiklińska M, Kuczak J, Guzowski J. Microfluidic Formulation of Topological Hydrogels for Microtissue Engineering. Chem Rev 2022; 122:16839-16909. [PMID: 36108106 PMCID: PMC9706502 DOI: 10.1021/acs.chemrev.1c00798] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Microfluidics has recently emerged as a powerful tool in generation of submillimeter-sized cell aggregates capable of performing tissue-specific functions, so-called microtissues, for applications in drug testing, regenerative medicine, and cell therapies. In this work, we review the most recent advances in the field, with particular focus on the formulation of cell-encapsulating microgels of small "dimensionalities": "0D" (particles), "1D" (fibers), "2D" (sheets), etc., and with nontrivial internal topologies, typically consisting of multiple compartments loaded with different types of cells and/or biopolymers. Such structures, which we refer to as topological hydrogels or topological microgels (examples including core-shell or Janus microbeads and microfibers, hollow or porous microstructures, or granular hydrogels) can be precisely tailored with high reproducibility and throughput by using microfluidics and used to provide controlled "initial conditions" for cell proliferation and maturation into functional tissue-like microstructures. Microfluidic methods of formulation of topological biomaterials have enabled significant progress in engineering of miniature tissues and organs, such as pancreas, liver, muscle, bone, heart, neural tissue, or vasculature, as well as in fabrication of tailored microenvironments for stem-cell expansion and differentiation, or in cancer modeling, including generation of vascularized tumors for personalized drug testing. We review the available microfluidic fabrication methods by exploiting various cross-linking mechanisms and various routes toward compartmentalization and critically discuss the available tissue-specific applications. Finally, we list the remaining challenges such as simplification of the microfluidic workflow for its widespread use in biomedical research, bench-to-bedside transition including production upscaling, further in vivo validation, generation of more precise organ-like models, as well as incorporation of induced pluripotent stem cells as a step toward clinical applications.
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Huang WC, Lin CC, Chiu TW, Chen SY. 3D Gradient and Linearly Aligned Magnetic Microcapsules in Nerve Guidance Conduits with Remotely Spatiotemporally Controlled Release to Enhance Peripheral Nerve Repair. ACS APPLIED MATERIALS & INTERFACES 2022; 14:46188-46200. [PMID: 36198117 DOI: 10.1021/acsami.2c11362] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Although numerous strategies have been implemented to develop nerve guidance conduits (NGCs) to treat peripheral nerve injury (PNI), functionalization of an NGC to make it remotely controllable for providing spatiotemporal modulation on in situ nerve tissues remains a challenge. In this study, a gelatin/silk (GS) hydrogel was used to develop an NGC based on its self-owned reversible thermoresponsive sol-to-gel phase transformation ability that permitted rapid three-dimensional (3D) micropatterning of the incorporated nerve growth factor (NGF)-loaded magnetic poly(lactic-co-glycolic acid) (PLGA) microcapsules (called NGF@MPs) via multiple magnetic guidance. The thermally controllable viscosity of GS enabled the rapid formation of a 3D gradient and linearly aligned distribution of NGF@MPs, leading to magnetically controlled 3D gradient release of NGF to enhance topographical nerve guidance and wound healing in PNIs. Particularly, the as-formed micropatterned hydrogel, called NGF@MPs-GS, showed corrugation topography with a pattern height H of 15 μm, which resulted in the linear axon alignment of more than 90% of cells. In addition, by an external magnetic field, spatiotemporal controllability of NGF release was obtained and permitted neurite elongation that was almost 2-fold longer than that in the group with external addition of NGF. Finally, an NGC prototype was fabricated and implanted into the injured sciatic nerve. The patterned implant, assisted by magnetic stimulation, demonstrated accelerated restoration of motor function within 14 days after implantation. It further contributed to the enhancement of axon outgrowth and remyelination after 28 days. This NGC, with controllable mechanical, biochemical, and topographical cues, is a promising platform for the enhancement of nerve regeneration.
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Affiliation(s)
- Wei-Chen Huang
- Department of Electrical and Computer Engineering, National Yang Ming Chiao Tung University, No. 1001 Ta-Hsueh Road, Hsinchu300093, Taiwan
| | - Chun-Chang Lin
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, No. 1001 Ta-Hsueh Road, Hsinchu300093, Taiwan
| | - Tzai-Wen Chiu
- Department of Biological Science and Technology, National Yang Ming Chiao Tung University, No. 1001 Ta-Hsueh Road, Hsinchu300093, Taiwan
| | - San-Yuan Chen
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, No. 1001 Ta-Hsueh Road, Hsinchu300093, Taiwan
- Frontier Research Centre on Fundamental and Applied Sciences of Matters, National Tsing Hua University, No. 101, Section 2, Kuang-Fu Road, Hsinchu300044, Taiwan
- School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, No.100, Shih-Chuan 1st Road, Kaohsiung80708, Taiwan
- Graduate Institute of Biomedical Science, China Medical University, No. 91, Hsueh-Shih Road, Taichung40402, Taiwan
- Medical Device Innovation and Translation Center, National Yang Ming Chiao Tung University, Yangming Campus, No. 155, Section 2, Linong Street, Beitou District, Taipei112304, Taiwan
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45
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Wireless charging-mediated angiogenesis and nerve repair by adaptable microporous hydrogels from conductive building blocks. Nat Commun 2022; 13:5172. [PMID: 36056007 PMCID: PMC9440098 DOI: 10.1038/s41467-022-32912-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 08/22/2022] [Indexed: 02/04/2023] Open
Abstract
Traumatic brain injury causes inflammation and glial scarring that impede brain tissue repair, so stimulating angiogenesis and recovery of brain function remain challenging. Here we present an adaptable conductive microporous hydrogel consisting of gold nanoyarn balls-coated injectable building blocks possessing interconnected pores to improve angiogenesis and recovery of brain function in traumatic brain injury. We show that following minimally invasive implantation, the adaptable hydrogel is able to fill defects with complex shapes and regulate the traumatic brain injury environment in a mouse model. We find that placement of this injectable hydrogel at peri-trauma regions enhances mature brain-derived neurotrophic factor by 180% and improves angiogenesis by 250% in vivo within 2 weeks after electromagnetized stimulation, and that these effects facilitate neuron survival and motor function recovery by 50%. We use blood oxygenation level-dependent functional neuroimaging to reveal the successful restoration of functional brain connectivity in the corticostriatal and corticolimbic circuits.
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46
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Muir VG, Qazi TH, Weintraub S, Torres Maldonado BO, Arratia PE, Burdick JA. Sticking Together: Injectable Granular Hydrogels with Increased Functionality via Dynamic Covalent Inter-Particle Crosslinking. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2201115. [PMID: 35315233 PMCID: PMC9463088 DOI: 10.1002/smll.202201115] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Revised: 03/03/2022] [Indexed: 05/14/2023]
Abstract
Granular hydrogels are an exciting class of microporous and injectable biomaterials that are being explored for many biomedical applications, including regenerative medicine, 3D printing, and drug delivery. Granular hydrogels often possess low mechanical moduli and lack structural integrity due to weak physical interactions between microgels. This has been addressed through covalent inter-particle crosslinking; however, covalent crosslinking often occurs through temporal enzymatic methods or photoinitiated reactions, which may limit injectability and material processing. To address this, a hyaluronic acid (HA) granular hydrogel is developed with dynamic covalent (hydrazone) inter-particle crosslinks. Extrusion fragmentation is used to fabricate microgels from photocrosslinkable norbornene-modified HA, additionally modified with either aldehyde or hydrazide groups. Aldehyde and hydrazide-containing microgels are mixed and jammed to form adhesive granular hydrogels. These granular hydrogels possess enhanced mechanical integrity and shape stability over controls due to the covalent inter-particle bonds, while maintaining injectability due to the dynamic hydrazone bonds. The adhesive granular hydrogels are applied to 3D printing, which allows the printing of structures that are stable without any further post-processing. Additionally, the authors demonstrate that adhesive granular hydrogels allow for cell invasion in vitro. Overall, this work demonstrates the use of dynamic covalent inter-particle crosslinking to enhance injectable granular hydrogels.
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Affiliation(s)
- Victoria G Muir
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Taimoor H Qazi
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Shoshana Weintraub
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Bryan O Torres Maldonado
- Department of Mechanical Engineering and Applied Mechanics, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Paulo E Arratia
- Department of Mechanical Engineering and Applied Mechanics, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Jason A Burdick
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, 19104, USA
- BioFrontiers Institute, University of Colorado Boulder, Boulder, CO, 80303, USA
- Department of Chemical and Biological Engineering, College of Engineering and Applied Science, University of Colorado Boulder, Boulder, CO, 80303, USA
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Zhang J, Yang H, Wu J, Zhang D, Wang Y, Zhai J. Recent progresses in novel in vitro models of primary neurons: A biomaterial perspective. Front Bioeng Biotechnol 2022; 10:953031. [PMID: 36061442 PMCID: PMC9428288 DOI: 10.3389/fbioe.2022.953031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 07/26/2022] [Indexed: 12/03/2022] Open
Abstract
Central nervous system (CNS) diseases have been a growing threat to the health of humanity, emphasizing the urgent need of exploring the pathogenesis and therapeutic approaches of various CNS diseases. Primary neurons are directly obtained from animals or humans, which have wide applications including disease modeling, mechanism exploration and drug development. However, traditional two-dimensional (2D) monoculture cannot resemble the native microenvironment of CNS. With the increasing understanding of the complexity of the CNS and the remarkable development of novel biomaterials, in vitro models have experienced great innovation from 2D monoculture toward three-dimensional (3D) multicellular culture. The scope of this review includes the progress of various in vitro models of primary neurons in recent years to provide a holistic view of the modalities and applications of primary neuron models and how they have been connected with the revolution of biofabrication techniques. Special attention has been paid to the interaction between primary neurons and biomaterials. First, a brief introduction on the history of CNS modeling and primary neuron culture was conducted. Next, detailed progress in novel in vitro models were discussed ranging from 2D culture, ex vivo model, spheroid, scaffold-based model, 3D bioprinting model, and microfluidic chip. Modalities, applications, advantages, and limitations of the aforementioned models were described separately. Finally, we explored future prospects, providing new insights into how basic science research methodologies have advanced our understanding of the CNS, and highlighted some future directions of primary neuron culture in the next few decades.
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Affiliation(s)
- Jiangang Zhang
- Department of Liver Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Huiyu Yang
- Departments of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jiaming Wu
- Departments of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Dingyue Zhang
- Department of Liver Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yu Wang
- Departments of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jiliang Zhai
- Departments of Orthopedics Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- *Correspondence: Jiliang Zhai,
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Li X, You B, Shum HC, Chen CH. Future foods: Design, fabrication and production through microfluidics. Biomaterials 2022; 287:121631. [PMID: 35717791 DOI: 10.1016/j.biomaterials.2022.121631] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 05/12/2022] [Accepted: 06/09/2022] [Indexed: 11/02/2022]
Abstract
Many delicious foods are soft matter systems with health ingredients and unique internal structures that provide rich nutrition, unique textures, and popular flavors. Obtaining these special properties in food products usually requires specialized processes. Microfluidic technologies have been developed to physically manipulate liquids to produce a broad range of microunits, providing a suitable approach for precise fabrication of functional biomaterials with desirable interior structures in a bottom-up fashion. In this review, we present how microfluidics has been applied to produce gel-based structures and highlight their use in fabricating novel foods, focusing on, among others, cultured meat as a rapidly growing field in food industry. We first discuss the behaviors of food liquids in microchannels for fluidic structure design. Then, different types of microsized building blocks with specific geometries fabricated through microfluidics are introduced, including particles (point), fibers (line), and sheets (plane). These well-defined units can encapsulate or interact with cells, forming microtissues to construct meat products with desirable architectures. After that, we review approaches to scale up microfluidic devices for mass production of the hydrogel building blocks and highlight the challenges associated with bottom-up food production.
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Affiliation(s)
- Xiufeng Li
- Advanced Biomedical Instrumentation Centre, Hong Kong Science Park, Shatin, New Territories, Hong Kong, China
| | - Baihao You
- Department of Biomedical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon Tong, Hong Kong, China
| | - Ho Cheung Shum
- Advanced Biomedical Instrumentation Centre, Hong Kong Science Park, Shatin, New Territories, Hong Kong, China; Department of Mechanical Engineering, University of Hong Kong, Pokfulam Road, Hong Kong, China.
| | - Chia-Hung Chen
- Department of Biomedical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon Tong, Hong Kong, China; City University of Hong Kong, Shenzhen Research Institute, 8 Yuexing 1st Road, Shenzhen Hi-tech Industrial Park, Nanshan District, Shenzhen, China.
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Sideris E, Kioulaphides S, Wilson K, Yu A, Chen J, Carmichael ST, Segura T. Particle hydrogels decrease cerebral atrophy and attenuate astrocyte and microglia/macrophage reactivity after stroke. ADVANCED THERAPEUTICS 2022; 5:2200048. [PMID: 36589207 PMCID: PMC9797126 DOI: 10.1002/adtp.202200048] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Increasing numbers of individuals live with stroke related disabilities. Following stroke, highly reactive astrocytes and pro-inflammatory microglia can release cytokines and lead to a cytotoxic environment that causes further brain damage and prevents endogenous repair. Paradoxically, these same cells also activate pro-repair mechanisms that contribute to endogenous repair and brain plasticity. Here, we show that the direct injection of a hyaluronic acid based microporous annealed particle (MAP) hydrogel into the stroke core in mice reduces the percent of highly reactive astrocytes, increases the percent of alternatively activated microglia, decreases cerebral atrophy and preserves NF200 axonal bundles. Further, we show that MAP hydrogel promotes reparative astrocyte infiltration into the lesion, which directly coincides with axonal penetration into the lesion. This work shows that the injection of a porous scaffold into the stroke core can lead to clinically relevant decrease in cerebral atrophy and modulates astrocytes and microglia towards a pro-repair phenotype.
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Affiliation(s)
- Elias Sideris
- Department of Chemical and Biomolecular Engineering, University of California Los Angeles, Los Angeles, CA, United States
| | - Sophia Kioulaphides
- Departments of Biomedical Engineering, Neurology, and Dermatology, Duke University, Durham, NC, United States
| | - Katrina Wilson
- Departments of Biomedical Engineering, Neurology, and Dermatology, Duke University, Durham, NC, United States
| | - Aaron Yu
- Department of Chemical and Biomolecular Engineering, University of California Los Angeles, Los Angeles, CA, United States
| | - Jun Chen
- Departments of Biomedical Engineering, Neurology, and Dermatology, Duke University, Durham, NC, United States
| | - S Thomas Carmichael
- Department of Neurology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, United States
| | - Tatiana Segura
- Departments of Biomedical Engineering, Neurology, and Dermatology, Duke University, Durham, NC, United States,Corresponding author: Tel.: +1 919-660-2901,
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Chang S, Wang S, Liu Z, Wang X. Advances of Stimulus-Responsive Hydrogels for Bone Defects Repair in Tissue Engineering. Gels 2022; 8:gels8060389. [PMID: 35735733 PMCID: PMC9222548 DOI: 10.3390/gels8060389] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 06/14/2022] [Accepted: 06/15/2022] [Indexed: 12/16/2022] Open
Abstract
Bone defects, as one of the most urgent problems in the orthopedic clinic, have attracted much attention from the biomedical community and society. Hydrogels have been widely used in the biomedical field for tissue engineering research because of their excellent hydrophilicity, biocompatibility, and degradability. Stimulus-responsive hydrogels, as a new type of smart biomaterial, have more advantages in sensing external physical (light, temperature, pressure, electric field, magnetic field, etc.), chemical (pH, redox reaction, ions, etc.), biochemical (glucose, enzymes, etc.) and other different stimuli. They can respond to stimuli such as the characteristics of the 3D shape and solid-liquid phase state, and exhibit special properties (injection ability, self-repair, shape memory, etc.), thus becoming an ideal material to provide cell adhesion, proliferation, and differentiation, and achieve precise bone defect repair. This review is focused on the classification, design concepts, and research progress of stimulus-responsive hydrogels based on different types of external environmental stimuli, aiming at introducing new ideas and methods for repairing complex bone defects.
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Affiliation(s)
- Shuai Chang
- Department of Orthopedics, Peking University Third Hospital, Beijing 100191, China; (S.C.); (S.W.)
- Beijing Key Laboratory of Spinal Disease Research, Peking University Third Hospital, Beijing 100191, China
- Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Peking University Third Hospital, Beijing 100191, China
| | - Shaobo Wang
- Department of Orthopedics, Peking University Third Hospital, Beijing 100191, China; (S.C.); (S.W.)
- Beijing Key Laboratory of Spinal Disease Research, Peking University Third Hospital, Beijing 100191, China
- Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Peking University Third Hospital, Beijing 100191, China
| | - Zhongjun Liu
- Department of Orthopedics, Peking University Third Hospital, Beijing 100191, China; (S.C.); (S.W.)
- Beijing Key Laboratory of Spinal Disease Research, Peking University Third Hospital, Beijing 100191, China
- Engineering Research Center of Bone and Joint Precision Medicine, Ministry of Education, Peking University Third Hospital, Beijing 100191, China
- Correspondence: (Z.L.); (X.W.)
| | - Xing Wang
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, University of Chinese Academy of Sciences, Beijing 100049, China
- Correspondence: (Z.L.); (X.W.)
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