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Karimizade A, Hasanzadeh E, Abasi M, Enderami SE, Mirzaei E, Annabi N, Mellati A. Collagen short nanofiber-embedded chondroitin sulfate-hyaluronic acid nanocomposite: A cartilage-mimicking in situ-forming hydrogel with fine-tuned properties. Int J Biol Macromol 2024; 266:131051. [PMID: 38556223 DOI: 10.1016/j.ijbiomac.2024.131051] [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: 12/18/2023] [Revised: 03/10/2024] [Accepted: 03/11/2024] [Indexed: 04/02/2024]
Abstract
In situ-forming hydrogels that possess the ability to be injected in a less invasive manner and mimic the biochemical composition and microarchitecture of the native cartilage extracellular matrix are desired for cartilage tissue engineering. Besides, gelation time and stiffness of the hydrogel are two interdependent factors that affect cells' distribution and fate and hence need to be optimized. This study presented a bioinspired in situ-forming hydrogel composite of hyaluronic acid (HA), chondroitin sulfate (CS), and collagen short nanofiber (CSNF). HA and CS were functionalized with aldehyde and amine groups to form a gel through a Schiff-base reaction. CSNF was fabricated via electrospinning, followed by fragmentation by ultrasonics. Gelation time (11-360 s) and compressive modulus (1.4-16.2 kPa) were obtained by varying the concentrations of CS, HA, CSNFs, and CSNFs length. The biodegradability and biocompatibility of the hydrogels with varying gelation and stiffness were also assessed in vitro and in vivo. At three weeks, the assessment of hydrogels' chondrogenic differentiation also yields varying levels of chondrogenic differentiation. The subcutaneous implantation of the hydrogels in a mouse model indicated no severe inflammation. Results demonstrated that the injectable CS/HA@CSNF hydrogel was a promising hydrogel for tissue engineering and cartilage regeneration.
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Affiliation(s)
- Ayoob Karimizade
- Department of Tissue Engineering and Regenerative Medicine, School of Advanced Technologies in Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Elham Hasanzadeh
- Department of Tissue Engineering and Regenerative Medicine, School of Advanced Technologies in Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Mozhgan Abasi
- Department of Tissue Engineering and Regenerative Medicine, School of Advanced Technologies in Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Seyed Ehsan Enderami
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Esmaeil Mirzaei
- Department of Medical Nanotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Nasim Annabi
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles (UCLA), CA 90095, USA
| | - Amir Mellati
- Department of Tissue Engineering and Regenerative Medicine, School of Advanced Technologies in Medicine, Mazandaran University of Medical Sciences, Sari, Iran; Molecular and Cell Biology Research Center, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran.
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2
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Wang J, Qin W, Zhong Y, Hu H, Yang J, Huang H, Huang N, Liu S, Li J, Zheng L, Qin A, Lu Z. Injectable collagen hydrogel combines human umbilical cord mesenchymal stem cells to promote endometrial regeneration in rats with thin endometrium. Int J Biol Macromol 2024; 254:127591. [PMID: 37884246 DOI: 10.1016/j.ijbiomac.2023.127591] [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: 04/21/2023] [Revised: 07/10/2023] [Accepted: 10/19/2023] [Indexed: 10/28/2023]
Abstract
The regeneration of thin endometrium still remains as a great challenge in the field of reproductive medicine. Stem cells-based therapy has been considered as a promising strategy for the restoration of thin endometrium. However, the low transplantation and retention rate of stem cells and loss of stemness due to in vitro expansion limits the therapeutic efficacy. In our study, we combined collagen hydrogel and human umbilical cord mesenchymal stem cells (uMSCs) for improving the regeneration of thin endometrium, by using the potent pluripotency and low immunogenicity of uMSCs and collagen hydrogel that promotes the anchorage and proliferation of stem cells. Results showed that collagen hydrogel has favorable biocompatibility and the capacity to enhance the cell viability and expression of stemness-associated genes (including organic cation/carnitine transporter4 (Oct-4), Nanog homeobox (Nanog) and SRY-box transcription factor 2 (SOX2)) of uMSCs. The combination of collagen hydrogel and uMSCs prolonged the retention time of the constructs in the uterine cavity and improved endometrial thickness compared with uMSCs alone, leading to increase the fertility of the rats with thin endometrium. These highlighted therapeutic prospects of collagen hydrogel combined with uMSCs for the minimally invasive therapy of thin endometrium in the clinic.
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Affiliation(s)
- Jiawei Wang
- Guangxi Engineering Center in Biomedical Materials for Tissue and Organ Regeneration, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China; Collaborative Innovation Center of Regenerative Medicine and Medical Bioresource Development and Application Co-constructed by the Province and Ministry, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China; Center of Reproductive Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - Weili Qin
- Center of Reproductive Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - Yanping Zhong
- Institute of Life Science, Guangxi Medical University, Nanning 530021, China
| | - Hao Hu
- Guangxi Engineering Center in Biomedical Materials for Tissue and Organ Regeneration, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China; Collaborative Innovation Center of Regenerative Medicine and Medical Bioresource Development and Application Co-constructed by the Province and Ministry, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China; Guangxi Key Laboratory of Regenerative Medicine, The First Afliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - Junxu Yang
- Guangxi Engineering Center in Biomedical Materials for Tissue and Organ Regeneration, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China; Collaborative Innovation Center of Regenerative Medicine and Medical Bioresource Development and Application Co-constructed by the Province and Ministry, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China; Guangxi Key Laboratory of Regenerative Medicine, The First Afliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - Hanji Huang
- Guangxi Engineering Center in Biomedical Materials for Tissue and Organ Regeneration, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China; Collaborative Innovation Center of Regenerative Medicine and Medical Bioresource Development and Application Co-constructed by the Province and Ministry, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China; Institute of Life Science, Guangxi Medical University, Nanning 530021, China; Guangxi Key Laboratory of Regenerative Medicine, The First Afliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - Nanchang Huang
- Guangxi Engineering Center in Biomedical Materials for Tissue and Organ Regeneration, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China; Collaborative Innovation Center of Regenerative Medicine and Medical Bioresource Development and Application Co-constructed by the Province and Ministry, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China; Guangxi Key Laboratory of Regenerative Medicine, The First Afliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - Shuhan Liu
- Guangxi Engineering Center in Biomedical Materials for Tissue and Organ Regeneration, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China; Collaborative Innovation Center of Regenerative Medicine and Medical Bioresource Development and Application Co-constructed by the Province and Ministry, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China; Guangxi Key Laboratory of Regenerative Medicine, The First Afliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - Jiaxu Li
- Center of Reproductive Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - Li Zheng
- Guangxi Engineering Center in Biomedical Materials for Tissue and Organ Regeneration, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China; Collaborative Innovation Center of Regenerative Medicine and Medical Bioresource Development and Application Co-constructed by the Province and Ministry, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China; Institute of Life Science, Guangxi Medical University, Nanning 530021, China; Guangxi Key Laboratory of Regenerative Medicine, The First Afliated Hospital of Guangxi Medical University, Nanning 530021, China.
| | - Aiping Qin
- Center of Reproductive Medicine, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China.
| | - Zhenhui Lu
- Guangxi Engineering Center in Biomedical Materials for Tissue and Organ Regeneration, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China; Collaborative Innovation Center of Regenerative Medicine and Medical Bioresource Development and Application Co-constructed by the Province and Ministry, The First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China; Institute of Life Science, Guangxi Medical University, Nanning 530021, China; Guangxi Key Laboratory of Regenerative Medicine, The First Afliated Hospital of Guangxi Medical University, Nanning 530021, China.
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3
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Sun L, Xu Y, Han Y, Cui J, Jing Z, Li D, Liu J, Xiao C, Li D, Cai B. Collagen-Based Hydrogels for Cartilage Regeneration. Orthop Surg 2023; 15:3026-3045. [PMID: 37942509 PMCID: PMC10694028 DOI: 10.1111/os.13884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 08/13/2023] [Accepted: 08/15/2023] [Indexed: 11/10/2023] Open
Abstract
Cartilage regeneration remains difficult due to a lack of blood vessels. Degradation of the extracellular matrix (ECM) causes cartilage defects, and the ECM provides the natural environment and nutrition for cartilage regeneration. Until now, collagen hydrogels are considered to be excellent material for cartilage regeneration due to the similar structure to ECM and good biocompatibility. However, collagen hydrogels also have several drawbacks, such as low mechanical strength, limited ability to induce stem cell differentiation, and rapid degradation. Thus, there is a demanding need to optimize collagen hydrogels for cartilage regeneration. In this review, we will first briefly introduce the structure of articular cartilage and cartilage defect classification and collagen, then provide an overview of the progress made in research on collagen hydrogels with chondrocytes or stem cells, comprehensively expound the research progress and clinical applications of collagen-based hydrogels that integrate inorganic or organic materials, and finally present challenges for further clinical translation.
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Affiliation(s)
- Lihui Sun
- Division of Bone and Joint Surgery, Center of OrthopaedicsFirst Hospital of Jilin UniversityChangchunPeople's Republic of China
| | - Yan Xu
- Division of Bone and Joint Surgery, Center of OrthopaedicsFirst Hospital of Jilin UniversityChangchunPeople's Republic of China
| | - Yu Han
- Division of Bone and Joint Surgery, Center of OrthopaedicsFirst Hospital of Jilin UniversityChangchunPeople's Republic of China
| | - Jing Cui
- Jilin Provincial Key Laboratory of Oral Biomedical Engineering, School and Hospital of StomatologyJilin UniversityChangchunChina
| | - Zheng Jing
- Division of Bone and Joint Surgery, Center of OrthopaedicsFirst Hospital of Jilin UniversityChangchunPeople's Republic of China
| | - Dongbo Li
- Division of Bone and Joint Surgery, Center of OrthopaedicsFirst Hospital of Jilin UniversityChangchunPeople's Republic of China
| | - Jianguo Liu
- Division of Bone and Joint Surgery, Center of OrthopaedicsFirst Hospital of Jilin UniversityChangchunPeople's Republic of China
| | - Chunsheng Xiao
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchunPeople's Republic of China
| | - Dongsong Li
- Division of Bone and Joint Surgery, Center of OrthopaedicsFirst Hospital of Jilin UniversityChangchunPeople's Republic of China
| | - Bo Cai
- Department of Ultrasound DiagnosisThe 964 Hospital of Chinese People's Liberation ArmyChangchunPeople's Republic of China
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4
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Gao Y, Dai W, Li S, Zhao X, Wang J, Fu W, Guo L, Fan Y, Zhang X. Components and physical properties of hydrogels modulate inflammatory response and cartilage repair. J Mater Chem B 2023; 11:10029-10042. [PMID: 37850311 DOI: 10.1039/d3tb01917a] [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: 10/19/2023]
Abstract
Collagen and hyaluronic acid are commonly applied in cartilage tissue engineering, yet there has been limited investigation into their inflammatory response, a crucial factor in articular cartilage repair. This study aimed to evaluate the impact of components and physical properties of hydrogels on inflammatory response and cartilage repair. Three kinds of hydrogels with comparable storage moduli at low frequencies were designed and fabricated, namely, methacrylic anhydride-modified hyaluronic acid hydrogel (HAMA), methacrylic anhydride-modified type I collagen hydrogel (CMA) and unmodified type I collagen hydrogel (Col). HAMA hydrogel was unfavorable for adhesion and spreading of BMSCs. Furthermore, HAMA hydrogel stimulated rapid migration and pro-inflammatory M1 polarization of macrophages, leading to persistent and intense inflammation, which was unfavorable for cartilage repair. CMA and Col hydrogels possessed the same component and facilitated the adhesion, spreading and proliferation of BMSCs. Compared with CMA hydrogel, Col hydrogel induced rapid migration and moderate M1 polarization of macrophages at the early stage of injury, which was mainly influenced by its fast dissolution rate, small pore size fiber network structure and rapid stress relaxation. In addition, the phenotype of macrophages timely transformed into anti-inflammatory M2 due to the properties of the collagen component, which shortened the duration of inflammation and enhanced cartilage repair. The results indicated that moderate macrophage activation adjusted by hydrogel components and physical properties was critical in modulating inflammation and cartilage regeneration.
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Affiliation(s)
- Yongli Gao
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610064, China.
- School of Biomedical Engineering, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610064, China
| | - Wenling Dai
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610064, China.
- School of Biomedical Engineering, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610064, China
| | - Shikui Li
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610064, China.
- School of Biomedical Engineering, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610064, China
| | - Xingchen Zhao
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610064, China.
- School of Biomedical Engineering, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610064, China
| | - Jing Wang
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610064, China.
- School of Biomedical Engineering, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610064, China
| | - Weili Fu
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, Sichuan 610064, China
| | - Likun Guo
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610064, China.
- School of Biomedical Engineering, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610064, China
| | - Yujiang Fan
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610064, China.
- School of Biomedical Engineering, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610064, China
| | - Xingdong Zhang
- National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610064, China.
- School of Biomedical Engineering, Sichuan University, 29 Wangjiang Road, Chengdu, Sichuan 610064, China
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5
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Bindi B, Perioli A, Melo P, Mattu C, Ferreira AM. Bioinspired Collagen/Hyaluronic Acid/Fibrin-Based Hydrogels for Soft Tissue Engineering: Design, Synthesis, and In Vitro Characterization. J Funct Biomater 2023; 14:495. [PMID: 37888160 PMCID: PMC10607851 DOI: 10.3390/jfb14100495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 09/12/2023] [Accepted: 09/16/2023] [Indexed: 10/28/2023] Open
Abstract
A major challenge for future drug development comprises finding alternative models for drug screening. The use of animal models in research is highly controversial, with an ongoing debate on their ethical acceptability. Also, animal models are often poorly predictive of therapeutic outcomes due to the differences between animal and human physiological environments. In this study, we aimed to develop a biomimetic hydrogel that replicates the composition of skin for potential use in in vitro modeling within tissue engineering. The hydrogel was fabricated through the crosslinking of collagen type I, hyaluronic acid, four-arm PEG succinimidyl glutarate (4S-StarPEG), and fibrinogen. Various ratios of these components were systematically optimized to achieve a well-interconnected porosity and desirable rheological properties. To evaluate the hydrogel's cytocompatibility, fibroblasts were embedded within the matrix. The resulting hydrogel exhibited promising properties as a scaffold, also facilitating the growth of and proliferation of the cells. This biomimetic hydrogel holds great potential for tissue engineering applications, particularly in skin regeneration and cancer research. The study used melanoma spheroids fabricated using the 96-round bottom well plate method as a potential application. The results demonstrate that the developed hydrogels allowed the maintenance of spheroid integrity and viability, meaning it has a promising use as a three-dimensional in vitro model of melanoma for both tissue engineering and drug screening applications.
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Affiliation(s)
- Bianca Bindi
- School of Engineering, Newcastle University, Newcastle upon Tyne NE1 7RU, UK
| | - Annalisa Perioli
- School of Engineering, Newcastle University, Newcastle upon Tyne NE1 7RU, UK
| | - Priscila Melo
- School of Engineering, Newcastle University, Newcastle upon Tyne NE1 7RU, UK
| | - Clara Mattu
- Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy
| | - Ana Marina Ferreira
- School of Engineering, Newcastle University, Newcastle upon Tyne NE1 7RU, UK
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Li Z, Zeng Y, Ren Q, Ding L, Han S, Hu D, Lu Z, Wang L, Zhang Y, Zhang L. Mineralization promotion and protection effect of carboxymethyl chitosan biomodification in biomimetic mineralization. Int J Biol Macromol 2023; 234:123720. [PMID: 36805508 DOI: 10.1016/j.ijbiomac.2023.123720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 01/25/2023] [Accepted: 02/13/2023] [Indexed: 02/21/2023]
Abstract
Biomimetic mineralization emphasizes reversing the process of dental caries through bio-inspired strategies, in which mineralization promotion and collagen protection are equally important. In this study, carboxymethyl chitosan (CMC) was deemed as an analog of glycosaminoglycan for biomimetic modification of collagen, both of the mineralization facilitation and collagen protection effect were evaluated. Experiments were carried out simultaneously on two-dimensional monolayer reconstituted collagen model, three-dimensional reconstituted collagen model and demineralized dentin model. In three models, CMC was successfully cross-linked onto collagen utilizing biocompatible 1-Ethyl-3(3-dimethylaminopropyl) carbodiimide hydrochloride and N-hydroxy sulfosuccinimide sodium salt to achieve biomodification. Results showed that CMC biomodification increased collagen's hydrophilicity, calcium absorption capacity and thermal degradation resistance. In demineralized dentin model, the activity of endogenous matrix metalloproteinases was significantly inhibited by CMC biomodification. Furthermore, CMC biomodification significantly improved cross-linking and intrafibrillar mineralization of collagen, especially in the two-dimensional monolayer reconstituted collagen model. This study provided a biomimetic mineralization strategy with comprehensive consideration of collagen protection, and enriched the application of chitosan-based materials in dentistry.
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Affiliation(s)
- Zhongcheng Li
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, Dept. of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Yuhao Zeng
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, Dept. of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Qian Ren
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, Dept. of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Longjiang Ding
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, Dept. of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Sili Han
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, Dept. of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Die Hu
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, Dept. of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Ziqian Lu
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, Dept. of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Luoyao Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, Dept. of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Yinmo Zhang
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, Dept. of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Linglin Zhang
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, Dept. of Cariology and Endodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China.
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Luo Y, Tan J, Zhou Y, Guo Y, Liao X, He L, Li D, Li X, Liu Y. From crosslinking strategies to biomedical applications of hyaluronic acid-based hydrogels: A review. Int J Biol Macromol 2023; 231:123308. [PMID: 36669634 DOI: 10.1016/j.ijbiomac.2023.123308] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 01/12/2023] [Accepted: 01/13/2023] [Indexed: 01/19/2023]
Abstract
Hyaluronic acid (HA) is not only a natural anionic polysaccharide with excellent biocompatibility, biodegradability, and moisturizing effect, but also an essential factor that can affect angiogenesis, inflammation, cell behavior, which has a wide range of applications in the biomedical field. Among them, HA-based hydrogels formed by various physical or chemical crosslinking strategies are particularly striking. They not only retain the physiological function of HA, but also have the skeleton function of hydrogel, which further expands the application of HA. However, HA-based natural hydrogels generally have problems such as insufficient mechanical strength and susceptibility to degradation by hyaluronidase, which limits their application to a certain extent. To solve such problems, researchers have prepared a variety of HA-based multifunctional hydrogels with remarkable properties in recent years by adopting various structural modification methods or novel crosslinking strategies, as well as introducing functionally reactive molecules or moieties, which have extended the application scope. This manuscript systematically introduced common crosslinking strategies of HA-based hydrogels and highlighted the development of novel HA-based hydrogels in anticancer drug delivery, cartilage repair, three-dimensional cell culture, skin dressing and other fields. We hope to provide some references for the subsequent development of HA-based hydrogels in the biomedical field.
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Affiliation(s)
- Yuning Luo
- Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, School of Pharmacology, Hengyang Medical School, University of South China, Hengyang 421001, China
| | - Junyan Tan
- Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, School of Pharmacology, Hengyang Medical School, University of South China, Hengyang 421001, China
| | - Yue Zhou
- Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, School of Pharmacology, Hengyang Medical School, University of South China, Hengyang 421001, China
| | - Yuqiong Guo
- Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, School of Pharmacology, Hengyang Medical School, University of South China, Hengyang 421001, China
| | - Xinying Liao
- Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, School of Pharmacology, Hengyang Medical School, University of South China, Hengyang 421001, China
| | - Li He
- Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, School of Pharmacology, Hengyang Medical School, University of South China, Hengyang 421001, China
| | - Dingxilei Li
- Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, School of Pharmacology, Hengyang Medical School, University of South China, Hengyang 421001, China
| | - Xinxin Li
- Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, School of Pharmacology, Hengyang Medical School, University of South China, Hengyang 421001, China
| | - Yang Liu
- Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, School of Pharmacology, Hengyang Medical School, University of South China, Hengyang 421001, China.
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8
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Functional gelatin hydrogel scaffold with degraded-release of glutamine to enhance cellular energy metabolism for cartilage repair. Int J Biol Macromol 2022; 221:923-933. [PMID: 36089087 DOI: 10.1016/j.ijbiomac.2022.09.039] [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: 04/26/2022] [Revised: 08/30/2022] [Accepted: 09/06/2022] [Indexed: 11/21/2022]
Abstract
Cartilage defect is one of the most common pathogenesis of osteoarthritis (OA), a degenerative joint disease that affects millions of people globally. Due to lack of nutrition and local metabolic inertia, the repair of cartilage has always been a difficult problem to be urgently solved. Herein, a functional gelatin hydrogel scaffold (GelMA-AG) chemically modified with alanyl-glutamine (AG) is proposed and prepared. The GelMA-AG can release glutamine through in vivo degradation that can activate the energy metabolism process of chondrocytes, thus effectively promoting damaged cartilage repair. The results demonstrate that compared with the AG-free gelatin hydrogel (GelMA), GelMA-AG exhibits an increase in both the mitochondrial membrane potential level and the production of intracellular adenosine triphosphate (ATP), while the intracellular reactive oxygen species (ROS) of chondrocytes is decreased, thus contributing to the higher level of cellular metabolism and the lower inflammation in cartilage tissue. In contrast to GelMA (Reduced Modulus (Er): 24.33 MPa), the Er value of the remodeled rabbit knee articular cartilage is up to 70.14 MPa, which is more comparable to natural cartilage. In particular, this strategy does not involve exogenous cells and growth factors, and the therapeutic strategy of actively regulating the metabolic microenvironment through a functional gelatin hydrogel scaffold represents a new and prospective idea for the design of tissue engineering biomaterials in cartilage repair with simplification and effectiveness.
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9
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Yan M, An X, Duan S, Jiang Z, Liu X, Zhao X, Li Y. A comparative study on cross-linking of fibrillar gel prepared by tilapia collagen and hyaluronic acid with EDC/NHS and genipin. Int J Biol Macromol 2022; 213:639-650. [PMID: 35671907 DOI: 10.1016/j.ijbiomac.2022.06.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 05/20/2022] [Accepted: 06/01/2022] [Indexed: 11/26/2022]
Abstract
Chemical cross-linking is an important step to grant satisfying properties to collagen-based materials. However, there are few comparative studies on crossing-linking of collagen-based fibrillar gels which are preferred biomaterials for similar properties to native tissues with different cross-linking agents. In this study, a fibrillar gel was fabricated with tilapia collagen and hyaluronic acid, and cross-linking conditions with EDC/NHS and genipin were discussed. Genipin gave gels much higher equilibrium cross-linking degree than EDC/NHS. ATR-FTIR and XPS showed EDC/NHS offered short-range cross-linking formed by amino and carboxyl groups in fibrils, while genipin induced long-range cross-linking by nucleophilic reaction through attack of amino groups in fibrils on carbon atoms at C-3 as well as ester groups in genipin, besides improved hydrogen bonds. XRD and SEM revealed the structural integrity of gels was strengthened after cross-linking, whereas fibril bundles disaggregated into thin fibrils. Consequently, swelling capacity and anti-degraded property were enhanced significantly, while thermal stability weakened. The fibrillar gels had good biocompatibility, but interestingly the appearance and migration of L929 fibroblasts were influenced by cross-linking degree. These results demonstrated that aquatic collagen-based fibrillar gel cross-linked by genipin had greater potential in biomaterials than EDC/NHS, whereas the cross-linking degree should be controlled.
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Affiliation(s)
- Mingyan Yan
- Shandong Provincial Key Laboratory of Biochemical Engineering, College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China
| | - Xiangsheng An
- Shandong Provincial Key Laboratory of Biochemical Engineering, College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China
| | - Shujun Duan
- Shandong Provincial Key Laboratory of Biochemical Engineering, College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China
| | - Zhicong Jiang
- Shandong Provincial Key Laboratory of Biochemical Engineering, College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China
| | - Xiaoyan Liu
- Shandong Provincial Key Laboratory of Biochemical Engineering, College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China
| | - Xiaochen Zhao
- Shandong Provincial Key Laboratory of Biochemical Engineering, College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China
| | - Yinping Li
- Shandong Provincial Key Laboratory of Biochemical Engineering, College of Marine Science and Biological Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China.
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10
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Xu X, Sui B, Liu X, Sun J. A bioinspired and high-strengthed hydrogel for regeneration of perforated temporomandibular joint disc: Construction and pleiotropic immunomodulatory effects. Bioact Mater 2022; 25:701-715. [PMID: 37056268 PMCID: PMC10086766 DOI: 10.1016/j.bioactmat.2022.07.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Revised: 06/24/2022] [Accepted: 07/05/2022] [Indexed: 11/18/2022] Open
Abstract
Due to the lack of an ideal material for TMJ (temporomandibular joint) disc perforation and local inflammation interfering with tissue regeneration, a functional TGI/HA-CS (tilapia type I gelatin/hyaluronic acid-chondroitin sulfate) double network hydrogel was constructed in this paper. It was not only multiply bionic in its composition, structure and mechanical strength, but also endowed with the ability to immunomodulate microenvironment and simultaneously induce in situ repair of defected TMJ discs. On the one hand, it inhibited inflammatory effects of inflammasome in macrophages, reduced the extracellular matrix (ECM)-degrading enzymes secreted by chondrocytes, reversed the local inflammatory state, promoted the proliferation of TMJ disc cells and induced fibrochondrogenic differentiation of synovium-derived mesenchymal stem cells (SMSCs). On the other hand, it gave an impetus to repairing a relatively-large (6 mm-sized) defect in mini pigs' TMJ discs in a rapid and high-quality manner, which suggested a promising clinical application.
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Affiliation(s)
| | | | | | - Jiao Sun
- Corresponding author. No. 427, Ju-men Road, Shanghai, 200023, PR China.
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11
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Zhao C, Liu G, Tan Q, Gao M, Chen G, Huang X, Xu X, Li L, Wang J, Zhang Y, Xu D. Polysaccharide-based biopolymer hydrogels for heavy metal detection and adsorption. J Adv Res 2022; 44:53-70. [PMID: 36725194 PMCID: PMC9936414 DOI: 10.1016/j.jare.2022.04.005] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 03/14/2022] [Accepted: 04/09/2022] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND With rapid development in agriculture and industry, water polluted with heavy metallic ions has come to be a serious problem. Adsorption-based methods are simple, efficient, and broadly used to eliminate heavy metals. Conventional adsorption materials have the problems of secondary environmental contamination. Hydrogels are considered effective adsorbents, and those prepared from biopolymers are biocompatible, biodegradable, non-toxic, safe to handle, and increasingly used to adsorb heavy metal ions. AIM OF REVIEW The natural origin and easy degradability of biopolymer hydrogels make them potential for development in environmental remediation. Its water absorption capacity enables it to efficiently adsorb various pollutants in the aqueous environment, and its internal pore channels increase the specific surface area for adsorption, which can provide abundant active binding sites for heavy metal ions through chemical modification. KEY SCIENTIFIC CONCEPT OF REVIEW As the most representative of biopolymer hydrogels, polysaccharide-based hydrogels are diverse, physically and chemically stable, and can undergo complex chemical modifications to enhance their performance, thus exhibiting superior ability to remove contaminants. This review summarizes the preparation methods of hydrogels, followed by a discussion of the main categories and applications of polysaccharide-based biopolymer hydrogels.
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Affiliation(s)
- Chenxi Zhao
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Key Laboratory of Vegetables Quality and Safety Control, Ministry of Agriculture of China, Beijing 100081, People’s Republic of China,College of Horticulture, Northeast Agricultural University, Harbin 150030, People’s Republic of China
| | - Guangyang Liu
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Key Laboratory of Vegetables Quality and Safety Control, Ministry of Agriculture of China, Beijing 100081, People's Republic of China.
| | - Qiyue Tan
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Key Laboratory of Vegetables Quality and Safety Control, Ministry of Agriculture of China, Beijing 100081, People’s Republic of China,College of Horticulture, Northeast Agricultural University, Harbin 150030, People’s Republic of China
| | - Mingkun Gao
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Key Laboratory of Vegetables Quality and Safety Control, Ministry of Agriculture of China, Beijing 100081, People’s Republic of China
| | - Ge Chen
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Key Laboratory of Vegetables Quality and Safety Control, Ministry of Agriculture of China, Beijing 100081, People’s Republic of China
| | - Xiaodong Huang
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Key Laboratory of Vegetables Quality and Safety Control, Ministry of Agriculture of China, Beijing 100081, People’s Republic of China
| | - Xiaomin Xu
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Key Laboratory of Vegetables Quality and Safety Control, Ministry of Agriculture of China, Beijing 100081, People’s Republic of China
| | - Lingyun Li
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Key Laboratory of Vegetables Quality and Safety Control, Ministry of Agriculture of China, Beijing 100081, People’s Republic of China
| | - Jing Wang
- Institute of Quality Standard and Testing Technology for Agro Products, Chinese Academy of Agricultural Sciences, Key Laboratory of Agrifood Safety and Quality, Ministry of Agriculture of China, Beijing 100081, People’s Republic of China
| | - Yaowei Zhang
- College of Horticulture, Northeast Agricultural University, Harbin 150030, People's Republic of China.
| | - Donghui Xu
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Key Laboratory of Vegetables Quality and Safety Control, Ministry of Agriculture of China, Beijing 100081, People's Republic of China.
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12
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Yan M, An X, Jiang Z, Duan S, Wang A, Zhao X, Li Y. Effects of cross-linking with EDC/NHS and genipin on characterizations of self-assembled fibrillar gel prepared from tilapia collagen and alginate. Polym Degrad Stab 2022. [DOI: 10.1016/j.polymdegradstab.2022.109929] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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13
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Recent Developments in Hyaluronic Acid-Based Hydrogels for Cartilage Tissue Engineering Applications. Polymers (Basel) 2022; 14:polym14040839. [PMID: 35215752 PMCID: PMC8963043 DOI: 10.3390/polym14040839] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 02/18/2022] [Accepted: 02/19/2022] [Indexed: 01/27/2023] Open
Abstract
Articular cartilage lesions resulting from injurious impact, recurring loading, joint malalignment, etc., are very common and encompass the risk of evolving to serious cartilage diseases such as osteoarthritis. To date, cartilage injuries are typically treated via operative procedures such as autologous chondrocyte implantation (ACI), matrix-associated autologous chondrocyte implantation (MACI) and microfracture, which are characterized by low patient compliance. Accordingly, cartilage tissue engineering (CTE) has received a lot of interest. Cell-laden hydrogels are favorable candidates for cartilage repair since they resemble the native tissue environment and promote the formation of extracellular matrix. Various types of hydrogels have been developed so far for CTE applications based on both natural and synthetic biomaterials. Among these materials, hyaluronic acid (HA), a principal component of the cartilage tissue which can be easily modified and biofunctionalized, has been favored for the development of hydrogels since it interacts with cell surface receptors, supports the growth of chondrocytes and promotes the differentiation of mesenchymal stem cells to chondrocytes. The present work reviews the various types of HA-based hydrogels (e.g., in situ forming hydrogels, cryogels, microgels and three-dimensional (3D)-bioprinted hydrogel constructs) that have been used for cartilage repair, specially focusing on the results of their preclinical and clinical assessment.
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14
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Bełdowski P, Przybyłek M, Sionkowska A, Cysewski P, Gadomska M, Musiał K, Gadomski A. Effect of Chitosan Deacetylation on Its Affinity to Type III Collagen: A Molecular Dynamics Study. MATERIALS (BASEL, SWITZERLAND) 2022; 15:463. [PMID: 35057179 PMCID: PMC8781747 DOI: 10.3390/ma15020463] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 01/05/2022] [Accepted: 01/06/2022] [Indexed: 02/04/2023]
Abstract
The ability to form strong intermolecular interactions by linear glucosamine polysaccharides with collagen is strictly related to their nonlinear dynamic behavior and hence bio-lubricating features. Type III collagen plays a crucial role in tissue regeneration, and its presence in the articular cartilage affects its bio-technical features. In this study, the molecular dynamics methodology was applied to evaluate the effect of deacetylation degree on the chitosan affinity to type III collagen. The computational procedure employed docking and geometry optimizations of different chitosan structures characterized by randomly distributed deacetylated groups. The eight different degrees of deacetylation from 12.5% to 100% were taken into account. We found an increasing linear trend (R2 = 0.97) between deacetylation degree and the collagen-chitosan interaction energy. This can be explained by replacing weak hydrophobic contacts with more stable hydrogen bonds involving amino groups in N-deacetylated chitosan moieties. In this study, the properties of chitosan were compared with hyaluronic acid, which is a natural component of synovial fluid and cartilage. As we found, when the degree of deacetylation of chitosan was greater than 0.4, it exhibited a higher affinity for collagen than in the case of hyaluronic acid.
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Affiliation(s)
- Piotr Bełdowski
- Institute of Mathematics & Physics, Bydgoszcz University of Science & Technology, 85-796 Bydgoszcz, Poland;
| | - Maciej Przybyłek
- Department of Physical Chemistry, Pharmacy Faculty, Collegium Medicum of Bydgoszcz, Nicolaus Copernicus University in Toruń, Kurpińskiego 5, 85-950 Bydgoszcz, Poland; (M.P.); (P.C.)
| | - Alina Sionkowska
- Department of Biomaterials and Cosmetics Chemistry, Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarin 7, 87-100 Toruń, Poland; (A.S.); (M.G.); (K.M.)
| | - Piotr Cysewski
- Department of Physical Chemistry, Pharmacy Faculty, Collegium Medicum of Bydgoszcz, Nicolaus Copernicus University in Toruń, Kurpińskiego 5, 85-950 Bydgoszcz, Poland; (M.P.); (P.C.)
| | - Magdalena Gadomska
- Department of Biomaterials and Cosmetics Chemistry, Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarin 7, 87-100 Toruń, Poland; (A.S.); (M.G.); (K.M.)
| | - Katarzyna Musiał
- Department of Biomaterials and Cosmetics Chemistry, Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarin 7, 87-100 Toruń, Poland; (A.S.); (M.G.); (K.M.)
| | - Adam Gadomski
- Institute of Mathematics & Physics, Bydgoszcz University of Science & Technology, 85-796 Bydgoszcz, Poland;
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15
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Lee KI, Koo TH, Chen P, D'Lima DD. Subcutaneous toxicity of a dual ionically cross-linked atelocollagen and sodium hyaluronate gel: Rat in vivo study for biological safety evaluation of the injectable hydrogel. Toxicol Rep 2021; 8:1651-1656. [PMID: 34567979 PMCID: PMC8449164 DOI: 10.1016/j.toxrep.2021.09.001] [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: 03/13/2021] [Revised: 08/29/2021] [Accepted: 09/12/2021] [Indexed: 11/30/2022] Open
Abstract
Hydrogel wound dressings are commonly used to stop bleeding and enhance healing. Hyaluronic acid and collagen are beneficial for wound healing, however, each polymer has limitations. A dual hydrogel combining the benefits of both biopolymers can be more effective for the treatment of various wound types. A composite of collagen and sodium hyaluronate did not generate significant subacute toxicity or reactivity in vivo.
Hydrogels are commonly used in wound dressing, as they retain moisture, accelerate healing, and break down necrotic tissue. This process enhances patient comfort levels while simultaneously reducing pain caused by dead tissue. The purpose of this study was to investigate the in vivo toxicity of a dual hydrogel consisting of type I atelocollagen cross-linked with sodium hyaluronate hydrogel used for wound dressing. Porcine type I atelocollagen was cross-linked with sodium hyaluronate to form the hydrogel. For subcutaneous implantation, 0.5 ml of dual hydrogel was injected into two different sites of twenty rats per group. High density polyethylene rods were implanted subcutaneously to serve as a control material. Hematological assessment, blood biochemistry, histopathological, and histological evaluations were scored and graded after 4 weeks. A bioreactivity rating was used for evaluation of subacute toxicity. Differences observed in blood chemical analysis and hematological analysis between control and test groups were within normal variations and considered unrelated to the test article implantation. No significant implantation-related lesions were observed in any of the major organs of all test animals. The overall histopathological index of the test article implantation sites was evaluated as 0. The bioreactivity rating was evaluated as non-irritant after 4-week subcutaneous implantation. Overall, these results indicate that the dual hydrogel of type I atelocollagen and sodium hyaluronate is biologically and chemically safe for clinical application as a wound dressing.
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Affiliation(s)
- Kwang-Il Lee
- Institute for Biomedical Sciences, San Diego, CA 92121, USA.,Shiley Center for Orthopaedic Research and Education at Scripps Clinic, La Jolla, CA 92037, USA
| | - Tae-Hoon Koo
- D-med, 143-48 Samseong-dong, Gangnam-gu, Seoul, 06159, Republic of Korea
| | - Peter Chen
- Institute for Biomedical Sciences, San Diego, CA 92121, USA
| | - Darryl D D'Lima
- Shiley Center for Orthopaedic Research and Education at Scripps Clinic, La Jolla, CA 92037, USA
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