1
|
Zhang L, Ma M, Li J, Qiao K, Xie Y, Zheng Y. Stimuli-responsive microcarriers and their application in tissue repair: A review of magnetic and electroactive microcarrier. Bioact Mater 2024; 39:147-162. [PMID: 38808158 PMCID: PMC11130597 DOI: 10.1016/j.bioactmat.2024.05.018] [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: 12/19/2023] [Revised: 04/07/2024] [Accepted: 05/07/2024] [Indexed: 05/30/2024] Open
Abstract
Microcarrier applications have made great advances in tissue engineering in recent years, which can load cells, drugs, and bioactive factors. These microcarriers can be minimally injected into the defect to help reconstruct a good microenvironment for tissue repair. In order to achieve more ideal performance and face more complex tissue damage, an increasing amount of effort has been focused on microcarriers that can actively respond to external stimuli. These microcarriers have the functions of directional movement, targeted enrichment, material release control, and providing signals conducive to tissue repair. Given the high controllability and designability of magnetic and electroactive microcarriers, the research progress of these microcarriers is highlighted in this review. Their structure, function and applications, potential tissue repair mechanisms, and challenges are discussed. In summary, through the design with clinical translation ability, meaningful and comprehensive experimental characterization, and in-depth study and application of tissue repair mechanisms, stimuli-responsive microcarriers have great potential in tissue repair.
Collapse
Affiliation(s)
- LiYang Zhang
- School of Material Science and Engineering, University of Science and Technology Beijing, Beijing, China
| | - Mengjiao Ma
- Beijing Wanjie Medical Device Co., Ltd, Beijing, China
| | - Junfei Li
- School of Material Science and Engineering, University of Science and Technology Beijing, Beijing, China
| | - Kun Qiao
- Beijing Gerecov Technology Company Ltd., Beijing, China
| | - Yajie Xie
- Beijing Gerecov Technology Company Ltd., Beijing, China
| | - Yudong Zheng
- School of Material Science and Engineering, University of Science and Technology Beijing, Beijing, China
| |
Collapse
|
2
|
Guo J, Yang Y, Xiang Y, Zhang S, Guo X. Application of smart hydrogel materials in cartilage injury repair: A systematic review and meta-analysis. J Biomater Appl 2024; 39:96-116. [PMID: 38708775 DOI: 10.1177/08853282241248779] [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: 05/07/2024]
Abstract
OBJECTIVE Cartilage injury is a common clinical condition, and treatment approaches have evolved over time from traditional conservative and surgical methods to regenerative repair. In this context, hydrogels, as widely used biomaterials in the field of cartilage repair, have garnered significant attention. Particularly, responsive hydrogels (also known as "smart hydrogels") have shown immense potential due to their ability to respond to various physicochemical properties and environmental changes. This paper aims to review the latest research developments of hydrogels in cartilage repair, utilizing a more systematic and comprehensive meta-analysis approach to evaluate the research status and application value of responsive hydrogels. The goal is to determine whether these materials demonstrate favorable therapeutic effects for subsequent clinical applications, thereby offering improved treatment methods for patients with cartilage injuries. METHOD This study employed a systematic literature search method to summarize the research progress of responsive hydrogels by retrieving literature on the subject and review studies. The search terms included "hydrogel" and "cartilage," covering data from database inception up to October 2023. The quality of the literature was independently evaluated using Review Manager v5.4 software. Quantifiable data was statistically analyzed using the R language. RESULTS A total of 7 articles were retrieved for further meta-analysis. In the quality assessment, the studies demonstrated reliability and accuracy. The results of the meta-analysis indicated that responsive hydrogels exhibit unique advantages and effective therapeutic outcomes in the field of cartilage repair. Subgroup analysis revealed potential influences of factors such as different types of hydrogels and animal models on treatment effects. CONCLUSION Responsive hydrogels show significant therapeutic effects and substantial application potential in the field of cartilage repair. This study provides strong scientific evidence for their further clinical applications and research, with the hope of promoting advancements in the treatment of cartilage injuries.
Collapse
Affiliation(s)
- Juncheng Guo
- Central Laboratory of Haikou People's Hospital, Haikou Affiliated Hospital of Xiangya Medical College, Central South University, Haikou, P. R. China
| | - Yijun Yang
- Haikou People's Hospital, Xiangya School of Medicine, Haikou Affiliated Hospital of Central South University, Haikou, P. R. China
| | - Yang Xiang
- Haikou People's Hospital, Xiangya School of Medicine, Haikou Affiliated Hospital of Central South University, Haikou, P. R. China
| | - Shufang Zhang
- Central Laboratory, Haikou People's Hospital, Xiangya School of Medicine, Haikou Affiliated Hospital of Central South University, Haikou, P. R. China
| | - Xueyi Guo
- Central South University, Changsha, P. R. China
| |
Collapse
|
3
|
Zhu S, Xuan J, Shentu Y, Kida K, Kobayashi M, Wang W, Ono M, Chang D. Effect of chitin-architected spatiotemporal three-dimensional culture microenvironments on human umbilical cord-derived mesenchymal stem cells. Bioact Mater 2024; 35:291-305. [PMID: 38370866 PMCID: PMC10869358 DOI: 10.1016/j.bioactmat.2024.01.014] [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: 11/16/2023] [Revised: 01/11/2024] [Accepted: 01/15/2024] [Indexed: 02/20/2024] Open
Abstract
Mesenchymal stem cell (MSC) transplantation has been explored for the clinical treatment of various diseases. However, the current two-dimensional (2D) culture method lacks a natural spatial microenvironment in vitro. This limitation restricts the stable establishment and adaptive maintenance of MSC stemness. Using natural polymers with biocompatibility for constructing stereoscopic MSC microenvironments may have significant application potential. This study used chitin-based nanoscaffolds to establish a novel MSC three-dimensional (3D) culture. We compared 2D and 3D cultured human umbilical cord-derived MSCs (UCMSCs), including differentiation assays, cell markers, proliferation, and angiogenesis. When UCMSCs are in 3D culture, they can differentiate into bone, cartilage, and fat. In 3D culture condition, cell proliferation is enhanced, accompanied by an elevation in the secretion of paracrine factors, including vascular endothelial growth factor (VEGF), hepatocyte growth factor (HGF), Interleukin-6 (IL-6), and Interleukin-8 (IL-8) by UCMSCs. Additionally, a 3D culture environment promotes angiogenesis and duct formation with HUVECs (Human Umbilical Vein Endothelial Cells), showing greater luminal area, total length, and branching points of tubule formation than a 2D culture. MSCs cultured in a 3D environment exhibit enhanced undifferentiated, as well as higher cell activity, making them a promising candidate for regenerative medicine and therapeutic applications.
Collapse
Affiliation(s)
- Shuoji Zhu
- Department of Cardiac Surgery, University of Tokyo, Tokyo, 113-8655, Japan
| | - Junfeng Xuan
- Department of Cell Therapy in Regenerative Medicine, University of Tokyo Hospital, Tokyo, 113-8655, Japan
| | - Yunchao Shentu
- Department of Cell Therapy in Regenerative Medicine, University of Tokyo Hospital, Tokyo, 113-8655, Japan
| | | | | | - Wei Wang
- Winhealth Pharma, 999077, Hong Kong
| | - Minoru Ono
- Department of Cardiac Surgery, University of Tokyo, Tokyo, 113-8655, Japan
| | - Dehua Chang
- Department of Cell Therapy in Regenerative Medicine, University of Tokyo Hospital, Tokyo, 113-8655, Japan
| |
Collapse
|
4
|
Wang M, Wu Y, Li G, Lin Q, Zhang W, Liu H, Su J. Articular cartilage repair biomaterials: strategies and applications. Mater Today Bio 2024; 24:100948. [PMID: 38269053 PMCID: PMC10806349 DOI: 10.1016/j.mtbio.2024.100948] [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: 10/16/2023] [Revised: 12/09/2023] [Accepted: 01/03/2024] [Indexed: 01/26/2024] Open
Abstract
Articular cartilage injury is a frequent worldwide disease, while effective treatment is urgently needed. Due to lack of blood vessels and nerves, the ability of cartilage to self-repair is limited. Despite the availability of various clinical treatments, unfavorable prognoses and complications remain prevalent. However, the advent of tissue engineering and regenerative medicine has generated considerable interests in using biomaterials for articular cartilage repair. Nevertheless, there remains a notable scarcity of comprehensive reviews that provide an in-depth exploration of the various strategies and applications. Herein, we present an overview of the primary biomaterials and bioactive substances from the tissue engineering perspective to repair articular cartilage. The strategies include regeneration, substitution, and immunization. We comprehensively delineate the influence of mechanically supportive scaffolds on cellular behavior, shedding light on emerging scaffold technologies, including stimuli-responsive smart scaffolds, 3D-printed scaffolds, and cartilage bionic scaffolds. Biologically active substances, including bioactive factors, stem cells, extracellular vesicles (EVs), and cartilage organoids, are elucidated for their roles in regulating the activity of chondrocytes. Furthermore, the composite bioactive scaffolds produced industrially to put into clinical use, are also explicitly presented. This review offers innovative solutions for treating articular cartilage ailments and emphasizes the potential of biomaterials for articular cartilage repair in clinical translation.
Collapse
Affiliation(s)
- Mingkai Wang
- Institute of Translational Medicine, Shanghai University, Shanghai, 200444, China
- Organoid Research Center, Shanghai University, Shanghai, 200444, China
- College of Medicine, Shanghai University, Shanghai, 200444, China
| | - Yan Wu
- Institute of Translational Medicine, Shanghai University, Shanghai, 200444, China
- Organoid Research Center, Shanghai University, Shanghai, 200444, China
| | - Guangfeng Li
- Institute of Translational Medicine, Shanghai University, Shanghai, 200444, China
- Organoid Research Center, Shanghai University, Shanghai, 200444, China
- College of Medicine, Shanghai University, Shanghai, 200444, China
- Department of Orthopedics Trauma, Shanghai Zhongye Hospital, Shanghai, 200941, China
| | - Qiushui Lin
- Department of Spine Surgery, The First Affiliated Hospital of Naval Medical University, Shanghai, 200433, China
| | - Wencai Zhang
- Department of Orthopedics, The First Affiliated Hospital Jinan University, Guangzhou, 510632, China
| | - Han Liu
- Institute of Translational Medicine, Shanghai University, Shanghai, 200444, China
- Organoid Research Center, Shanghai University, Shanghai, 200444, China
| | - Jiacan Su
- Institute of Translational Medicine, Shanghai University, Shanghai, 200444, China
- Organoid Research Center, Shanghai University, Shanghai, 200444, China
- Department of Orthopedics, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China
| |
Collapse
|
5
|
Yan Q, Shi S, Ge Y, Wan S, Li M, Li M. UCHL1 alleviates apoptosis in chondrocytes via upregulation of HIF‑1α‑mediated mitophagy. Int J Mol Med 2023; 52:99. [PMID: 37681473 PMCID: PMC10555477 DOI: 10.3892/ijmm.2023.5302] [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: 05/18/2023] [Accepted: 08/16/2023] [Indexed: 09/09/2023] Open
Abstract
Stem cell‑based tissue engineering has shown significant potential for rapid restoration of injured cartilage tissues. Stem cells frequently undergo apoptosis because of the prevalence of oxidative stress and inflammation in the microenvironment at the sites of injury. Our previous study demonstrated that stabilization of hypoxia‑inducible factor 1α (HIF‑1α) is key to resisting apoptosis in chondrocytes. Recently, it was reported that Ubiquitin C‑terminal hydrolase L1 (UCHL1) can stabilize HIF‑1α by abrogating the ubiquitination process. However, the effect of UCHL1 on apoptosis in chondrocytes remains unclear. Herein, adipose‑derived stem cells were differentiated into chondrocytes. Next, the CRISPR activation (CRISPRa) system, LDN‑57444 (LDM; a specific inhibitor for UCHL1), KC7F2 (a specific inhibitor for HIF‑1α), and 3‑methyladenine (a specific inhibitor for mitophagy) were used to activate or block UCHL1, HIF‑1α, and mitophagy. Mitophagy, apoptosis, and mitochondrial function in chondrocytes were detected using immunofluorescence, TUNEL staining, and flow cytometry. Moreover, the oxygen consumption rate of chondrocytes was measured using the Seahorse XF 96 Extracellular Flux Analyzer. UCHL1 expression was increased in hypoxia, which in turn regulated mitophagy and apoptosis in the chondrocytes. Further studies revealed that UCHL1 mediated hypoxia‑regulated mitophagy in the chondrocytes. The CRISPRa module was utilized to activate UCHL1 effectively for 7 days; endogenous activation of UCHL1 accelerated mitophagy, inhibited apoptosis, and maintained mitochondrial function in the chondrocytes, which was mediated by HIF‑1α. Taken together, UCHL1 could block apoptosis in chondrocytes via upregulation of HIF‑1α-mediated mitophagy and maintain mitochondrial function. These results indicate the potential of UCHL1 activation using the CRISPRa system for the regeneration of cartilage tissue.
Collapse
Affiliation(s)
- Qiqian Yan
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, Guangdong 510280
- Guangdong Academy of Stomatology, Guangzhou, Guangdong 510180, P.R. China
| | - Shanwei Shi
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, Guangdong 510280
- Guangdong Academy of Stomatology, Guangzhou, Guangdong 510180, P.R. China
| | - Yang Ge
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, Guangdong 510280
- Guangdong Academy of Stomatology, Guangzhou, Guangdong 510180, P.R. China
| | - Shuangquan Wan
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, Guangdong 510280
- Guangdong Academy of Stomatology, Guangzhou, Guangdong 510180, P.R. China
| | - Mingfei Li
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, Guangdong 510280
- Guangdong Academy of Stomatology, Guangzhou, Guangdong 510180, P.R. China
| | - Maoquan Li
- Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, Guangdong 510280
- Guangdong Academy of Stomatology, Guangzhou, Guangdong 510180, P.R. China
| |
Collapse
|
6
|
Li Y, Zhong Z, Xu C, Wu X, Li J, Tao W, Wang J, Du Y, Zhang S. 3D micropattern force triggers YAP nuclear entry by transport across nuclear pores and modulates stem cells paracrine. Natl Sci Rev 2023; 10:nwad165. [PMID: 37457331 PMCID: PMC10347367 DOI: 10.1093/nsr/nwad165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Revised: 04/27/2023] [Accepted: 05/25/2023] [Indexed: 07/18/2023] Open
Abstract
Biophysical cues of the cellular microenvironment tremendously influence cell behavior by mechanotransduction. However, it is still unclear how cells sense and transduce the mechanical signals from 3D geometry to regulate cell function. Here, the mechanotransduction of human mesenchymal stem cells (MSCs) triggered by 3D micropatterns and its effect on the paracrine of MSCs are systematically investigated. Our findings show that 3D micropattern force could influence the spatial reorganization of the cytoskeleton, leading to different local forces which mediate nucleus alteration such as orientation, morphology, expression of Lamin A/C and chromatin condensation. Specifically, in the triangular prism and cuboid micropatterns, the ordered F-actin fibers are distributed over and fully transmit compressive forces to the nucleus, which results in nuclear flattening and stretching of nuclear pores, thus enhancing the nuclear import of YES-associated protein (YAP). Furthermore, the activation of YAP significantly enhances the paracrine of MSCs and upregulates the secretion of angiogenic growth factors. In contrast, the fewer compressive forces on the nucleus in cylinder and cube micropatterns cause less YAP entering the nucleus. The skin repair experiment provides the first in vivo evidence that enhanced MSCs paracrine by 3D geometry significantly promotes tissue regeneration. The current study contributes to understanding the in-depth mechanisms of mechanical signals affecting cell function and provides inspiration for innovative design of biomaterials.
Collapse
Affiliation(s)
| | | | - Cunjing Xu
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan430074, China
- Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan430074, China
| | - Xiaodan Wu
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan430074, China
- Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan430074, China
| | - Jiaqi Li
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan430074, China
- Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan430074, China
| | - Weiyong Tao
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan430074, China
- Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan430074, China
| | - Jianglin Wang
- Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan430074, China
- Department of Biomedical Engineering, Huazhong University of Science and Technology, Wuhan430074, China
| | | | | |
Collapse
|
7
|
Mikos AG. 3D micropattern force regulates stem cell function. Natl Sci Rev 2023; 10:nwad198. [PMID: 37547451 PMCID: PMC10398006 DOI: 10.1093/nsr/nwad198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 07/14/2023] [Indexed: 08/08/2023] Open
|
8
|
Conley BM, Yang L, Bhujel B, Luo J, Han I, Lee KB. Development of a Nanohybrid Peptide Hydrogel for Enhanced Intervertebral Disc Repair and Regeneration. ACS NANO 2023; 17:3750-3764. [PMID: 36780291 DOI: 10.1021/acsnano.2c11441] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Effective therapeutic approaches to overcome the heterogeneous pro-inflammatory and inhibitory extracellular matrix (ECM) microenvironment are urgently needed to achieve robust structural and functional repair of severely wounded fibrocartilaginous tissues. Herein we developed a dynamic and multifunctional nanohybrid peptide hydrogel (NHPH) through hierarchical self-assembly of peptide amphiphile modified with biodegradable two-dimensional nanomaterials with enzyme-like functions. NHPH is not only injectable, biocompatible, and biodegradable but also therapeutic by catalyzing the scavenging of pro-inflammatory reactive oxygen species and promoting ECM remodeling. In addition, our NHPH method facilitated the structural and functional recovery of the intervertebral disc (IVD) after severe injuries by delivering pro-regenerative cytokines in a sustained manner, effectively suppressing immune responses and eventually restoring the regenerative microenvironment of the ECM. In parallel, the NHPH-enhanced nucleus pulposus cell differentiation and pain reduction in a rat nucleotomy model further validated the therapeutic potential of NHPH. Collectively, our advanced nanoscaffold technology will provide an alternative approach for the effective treatment of IVD degeneration as well as other fibrocartilaginous tissue injuries.
Collapse
Affiliation(s)
- Brian M Conley
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 123 Bevier Road, Piscataway, New Jersey 08854, United States
| | - Letao Yang
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 123 Bevier Road, Piscataway, New Jersey 08854, United States
| | - Basanta Bhujel
- Department of Neurosurgery, CHA University School of Medicine, Yatap-ro 59, Bundang-gu, Seongnam-si, Gyeonggi-do 13497, Korea
| | - Jeffrey Luo
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 123 Bevier Road, Piscataway, New Jersey 08854, United States
| | - Inbo Han
- Department of Neurosurgery, CHA University School of Medicine, Yatap-ro 59, Bundang-gu, Seongnam-si, Gyeonggi-do 13497, Korea
| | - Ki-Bum Lee
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 123 Bevier Road, Piscataway, New Jersey 08854, United States
| |
Collapse
|
9
|
Wang S, Zhao S, Yu J, Gu Z, Zhang Y. Advances in Translational 3D Printing for Cartilage, Bone, and Osteochondral Tissue Engineering. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2201869. [PMID: 35713246 DOI: 10.1002/smll.202201869] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 05/12/2022] [Indexed: 06/15/2023]
Abstract
The regeneration of 3D tissue constructs with clinically relevant sizes, structures, and hierarchical organizations for translational tissue engineering remains challenging. 3D printing, an additive manufacturing technique, has revolutionized the field of tissue engineering by fabricating biomimetic tissue constructs with precisely controlled composition, spatial distribution, and architecture that can replicate both biological and functional native tissues. Therefore, 3D printing is gaining increasing attention as a viable option to advance personalized therapy for various diseases by regenerating the desired tissues. This review outlines the recently developed 3D printing techniques for clinical translation and specifically summarizes the applications of these approaches for the regeneration of cartilage, bone, and osteochondral tissues. The current challenges and future perspectives of 3D printing technology are also discussed.
Collapse
Affiliation(s)
- Shenqiang Wang
- Zhejiang Provincial Key Laboratory for Advanced Drug Delivery Systems, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Sheng Zhao
- Zhejiang Provincial Key Laboratory for Advanced Drug Delivery Systems, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Jicheng Yu
- Zhejiang Provincial Key Laboratory for Advanced Drug Delivery Systems, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
- Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou, 311121, China
| | - Zhen Gu
- Zhejiang Provincial Key Laboratory for Advanced Drug Delivery Systems, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
- Liangzhu Laboratory, Zhejiang University Medical Center, Hangzhou, 311121, China
- Department of General Surgery, Sir Run Run Hospital, School of Medicine, Zhejiang University, Hangzhou, 310016, China
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
- Jinhua Institute of Zhejiang University, Jinhua, 321299, China
| | - Yuqi Zhang
- Zhejiang Provincial Key Laboratory for Advanced Drug Delivery Systems, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, 310058, China
- Department of Burns and Wound Center, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, 310009, China
| |
Collapse
|
10
|
Jia L, Zhang P, Ci Z, Hao X, Bai B, Zhang W, Jiang H, Zhou G. Acellular cartilage matrix biomimetic scaffold with immediate enrichment of autologous bone marrow mononuclear cells to repair articular cartilage defects. Mater Today Bio 2022; 15:100310. [PMID: 35677810 PMCID: PMC9168693 DOI: 10.1016/j.mtbio.2022.100310] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 05/13/2022] [Accepted: 05/26/2022] [Indexed: 12/12/2022] Open
Abstract
Functional repair of articular cartilage defects is always a great challenge in joint surgery clinically. Tissue engineering strategies that combine autologous cell implantation with three-dimensional scaffolds have proven effective for repairing articular cartilage tissue. However, it faces the problem of cell sources and scaffold materials. Autologous chondrocytes and bone marrow are difficult to popularize clinically due to limited donor sources and low mononuclear cell (MNC) concentrations, respectively. The density gradient centrifugation method can increase the concentration of MNCs in fresh bone marrow by nearly a hundredfold and achieve immediate enrichment. In addition, acellular cartilage matrix (ACM), with good biocompatibility and a cartilage-specific microenvironment, is considered to be an ideal candidate scaffold for cartilage regeneration. In this study, hybrid pigs were used to establish articular cartilage defect models of different sizes to determine the feasibility and maximum scope of application of ACM-based biomimetic scaffolds combined with MNCs for inducing articular cartilage regeneration. Importantly, ACM-based biomimetic scaffolds instantly enriched MNCs could improve the repair effect of articular cartilage defects in situ, which established a new model of articular cartilage regeneration that could be applied immediately and suited for large-scale clinical promotion. The current study significantly improves the repair effect of articular cartilage defects, which provides scientific evidence and detailed insights for future clinical applications of ACM-based biomimetic scaffolds combined with MNCs. Explore the maximum scope of repairing articular cartilage defect with ACM scaffold. Immediate enrichment of mononuclear cells by density gradient centrifugation. ACM scaffold enriched MNCs improve the repair effect of articular cartilage defect. Enrichment of MNCs expands the maximum scope of repairing articular cartilage defect.
Collapse
|