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Wang T, Huang C, Fang Z, Bahatibieke A, Fan D, Wang X, Zhao H, Xie Y, Qiao K, Xiao C, Zheng Y. A dual dynamically cross-linked hydrogel promotes rheumatoid arthritis repair through ROS initiative regulation and microenvironment modulation-independent triptolide release. Mater Today Bio 2024; 26:101042. [PMID: 38660473 PMCID: PMC11040138 DOI: 10.1016/j.mtbio.2024.101042] [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: 01/04/2024] [Revised: 03/12/2024] [Accepted: 03/28/2024] [Indexed: 04/26/2024] Open
Abstract
High oxidative stress and inflammatory cell infiltration are major causes of the persistent bone erosion and difficult tissue regeneration in rheumatoid arthritis (RA). Triptolide (TPL) has become a highly anticipated anti-rheumatic drug due to its excellent immunomodulatory and anti-inflammatory effects. However, the sudden drug accumulation caused by the binding of "stimulus-response" and "drug release" in a general smart delivery system is difficult to meet the shortcoming of extreme toxicity and the demand for long-term administration of TPL. Herein, we developed a dual dynamically cross-linked hydrogel (SPT@TPL), which demonstrated sensitive RA microenvironment regulation and microenvironment modulation-independent TPL release for 30 days. The abundant borate ester/tea polyphenol units in SPT@TPL possessed the capability to respond and regulate high reactive oxygen species (ROS) levels on-demand. Meanwhile, based on its dense dual crosslinked structure as well as the spontaneous healing behavior of numerous intermolecular hydrogen bonds formed after the breakage of borate ester, TPL could remain stable and slowly release under high ROS environments of RA, which dramatically reduced the risk of TPL exerting toxicity while maximized its long-term efficacy. Through the dual effects of ROS regulation and TPL sustained-release, SPT@TPL alleviated oxidative stress and reprogrammed macrophages into M2 phenotype, showing marked inhibition of inflammation and optimal regeneration of articular cartilage in RA rat model. In conclusion, this hydrogel platform with both microenvironment initiative regulation and TPL long-term sustained release provides a potential scheme for rheumatoid arthritis.
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Affiliation(s)
- Tianyang Wang
- School of Material Science & Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Cheng Huang
- Department of Orthopaedics, China-Japan Friendship Hospital, Beijing, 100029, China
| | - Ziyuan Fang
- School of Material Science & Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Abudureheman Bahatibieke
- School of Material Science & Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Danping Fan
- Beijing Key Laboratory of Research of Chinese Medicine on Prevention and Treatment for Major Diseases, Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing, China
| | - Xing Wang
- China-Japan Friendship Clinical Medical College, Beijing University of Chinese Medicine, Beijing, China
| | - Hongyan Zhao
- Beijing Key Laboratory of Research of Chinese Medicine on Prevention and Treatment for Major Diseases, Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yajie Xie
- School of Material Science & Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Kun Qiao
- School of Material Science & Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Cheng Xiao
- Institute of Clinical Medicine, China-Japan Friendship Hospital, Beijing, 100029, China
- Department of Emergency, China-Japan Friendship Hospital, Beijing, 100029, China
| | - Yudong Zheng
- School of Material Science & Engineering, University of Science and Technology Beijing, Beijing, 100083, China
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2
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Cao J, Yuan P, Wu B, Liu Y, Hu C. Advances in the Research and Application of Smart-Responsive Hydrogels in Disease Treatment. Gels 2023; 9:662. [PMID: 37623116 PMCID: PMC10454421 DOI: 10.3390/gels9080662] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 08/12/2023] [Accepted: 08/16/2023] [Indexed: 08/26/2023] Open
Abstract
Smart-responsive hydrogels have been widely used in various fields, particularly in the biomedical field. Compared with traditional hydrogels, smart-responsive hydrogels not only facilitate the encapsulation and controlled release of drugs, active substances, and even cells but, more importantly, they enable the on-demand and controllable release of drugs and active substances at the disease site, significantly enhancing the efficacy of disease treatment. With the rapid advancement of biomaterials, smart-responsive hydrogels have received widespread attention, and a wide variety of smart-responsive hydrogels have been developed for the treatment of different diseases, thus presenting tremendous research prospects. This review summarizes the latest advancements in various smart-responsive hydrogels used for disease treatment. Additionally, some of the current shortcomings of smart-responsive hydrogels and the strategies to address them are discussed, as well as the future development directions and prospects of smart-responsive hydrogels.
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Affiliation(s)
- Juan Cao
- School of Fashion and Design Art, Sichuan Normal University, Chengdu 610066, China;
| | - Ping Yuan
- School of Mechanical Engineering, Chengdu University, Chengdu 610106, China;
| | - Bo Wu
- School of Mechanical Engineering, Sichuan University, Chengdu 610065, China; (B.W.); (Y.L.)
| | - Yeqi Liu
- School of Mechanical Engineering, Sichuan University, Chengdu 610065, China; (B.W.); (Y.L.)
| | - Cheng Hu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610065, China
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Jiang Y, Guo S, Jiao J, Li L. A Biphasic Hydrogel with Self-Healing Properties and a Continuous Layer Structure for Potential Application in Osteochondral Defect Repair. Polymers (Basel) 2023; 15:2744. [PMID: 37376390 DOI: 10.3390/polym15122744] [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: 05/25/2023] [Revised: 06/13/2023] [Accepted: 06/16/2023] [Indexed: 06/29/2023] Open
Abstract
The treatment of osteochondral defects remains challenging due to the limited healing capacity of cartilage and the poor results of traditional methods. Inspired by the structure of natural articular cartilage, we have fabricated a biphasic osteochondral hydrogel scaffold using a Schiff base reaction and a free radical polymerization reaction. Carboxymethyl chitosan (CMCS), oxidized sodium alginate (OSA), and polyacrylamide (PAM) formed a hydrogel (COP) as the cartilage layer, while hydroxyapatite (HAp) was incorporated into the COP hydrogel to obtain a hydrogel (COPH) as an subchondral bone layer. At the same time, hydroxyapatite (HAp) was incorporated into the COP hydrogel to obtain a hydrogel (COPH) as an osteochondral sublayer, combining the two to obtain an integrated scaffold for osteochondral tissue engineering. Interlayer interpenetration through the continuity of the hydrogel substrate and good self-healing properties due to the dynamic imine bonding of the hydrogel resulted in enhanced interlayer bond strength. In addition, in vitro experiments have shown that the hydrogel exhibits good biocompatibility. It shows great potential for osteochondral tissue engineering applications.
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Affiliation(s)
- Yue Jiang
- College of Materials and Metallurgy, Guizhou University, Guiyang 550025, China
| | - Shanzhu Guo
- College of Materials and Metallurgy, Guizhou University, Guiyang 550025, China
| | - Jingjing Jiao
- College of Materials and Metallurgy, Guizhou University, Guiyang 550025, China
| | - Long Li
- College of Materials and Metallurgy, Guizhou University, Guiyang 550025, China
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4
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Jiang Q, Zhang S. Stimulus-Responsive Drug Delivery Nanoplatforms for Osteoarthritis Therapy. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2206929. [PMID: 36905239 DOI: 10.1002/smll.202206929] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 02/16/2023] [Indexed: 06/08/2023]
Abstract
Osteoarthritis (OA) is one of the most prevalent age-related degenerative diseases. With an increasingly aging global population, greater numbers of OA patients are providing clear economic and societal burdens. Surgical and pharmacological treatments are the most common and conventional therapeutic strategies for OA, but often fall considerably short of desired or optimal outcomes. With the development of stimulus-responsive nanoplatforms has come the potential for improved therapeutic strategies for OA. Enhanced control, longer retention time, higher loading rates, and increased sensitivity are among the potential benefits. This review summarizes the advanced application of stimulus-responsive drug delivery nanoplatforms for OA, categorized by either those that depend on endogenous stimulus (reactive oxygen species, pH, enzyme, and temperature), or those that depend on exogenous stimulus (near-infrared ray, ultrasound, magnetic fields). The opportunities, restrictions, and limitations related to these various drug delivery systems, or their combinations, are discussed in areas such as multi-functionality, image guidance, and multi-stimulus response. The remaining constraints and potential solutions that are represented by the clinical application of stimulus-responsive drug delivery nanoplatforms are finally summarized.
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Affiliation(s)
- Qi Jiang
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, Department of Orthopedic Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
- Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine, Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, 310058, China
- China Orthopedic Regenerative Medicine Group (CORMed), Hangzhou, 310058, China
| | - Shufang Zhang
- Dr. Li Dak Sum & Yip Yio Chin Center for Stem Cells and Regenerative Medicine, Department of Orthopedic Surgery of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
- Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine, Key Laboratory of Tissue Engineering and Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, 310058, China
- China Orthopedic Regenerative Medicine Group (CORMed), Hangzhou, 310058, China
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Sun K, Liu B, Wang DA. Editorial: Focus issue on biomaterials approaches to the repair and regeneration of cartilage tissue. Biomed Mater 2023; 18. [PMID: 36971663 DOI: 10.1088/1748-605x/acc560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 03/17/2023] [Indexed: 03/29/2023]
Abstract
Traditional joint replacement surgery faces the risk of enormous trauma and secondary revision while using medication to relieve symptoms can cause bone thinning, weight gain and interference with the patient's pain signalling. Medical research has therefore focused on minimally invasive solutions for implanting tissue-engineered scaffolds to induce cartilage regeneration and repair. In cartilage tissue engineering, there are still technical barriers to seed cells, scaffold construction techniques, mechanical properties, and the regulation of the internal environment on the transplanted material. This issue focuses on the development of cartilage repair, cutting-edge discoveries, manufacturing technologies, and the current technological queries still faced in cartilage regenerative medicine research. The articles in this collection cover the coordination of physical and biochemical signals, genes, and regulations by the extracellular environment.
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Affiliation(s)
- Kang Sun
- Department of Biomedical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong Special Administrative Region of China, People's Republic of China
| | - Bangheng Liu
- Department of Biomedical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong Special Administrative Region of China, People's Republic of China
- Karolinska Institutet Ming Wai Lau Centre for Reparative Medicine, Hong Kong Special Administrative Region of China, People's Republic of China
| | - Dong-An Wang
- Department of Biomedical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong Special Administrative Region of China, People's Republic of China
- Karolinska Institutet Ming Wai Lau Centre for Reparative Medicine, Hong Kong Special Administrative Region of China, People's Republic of China
- Shenzhen Research Institute, City University of Hong Kong, Shenzhen, People's Republic of China
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Maqui Berry and Ginseng Extracts Reduce Cigarette Smoke-Induced Cell Injury in a 3D Bone Co-Culture Model. Antioxidants (Basel) 2022; 11:antiox11122460. [PMID: 36552669 PMCID: PMC9774157 DOI: 10.3390/antiox11122460] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 11/30/2022] [Accepted: 12/12/2022] [Indexed: 12/15/2022] Open
Abstract
Cigarette smoking-induced oxidative stress has harmful effects on bone metabolism. Maqui berry extract (MBE) and ginseng extract (GE) are two naturally occurring antioxidants that have been shown to reduce oxidative stress. By using an osteoblast and osteoclast three-dimensional co-culture system, we investigated the effects of MBE and GE on bone cells exposed to cigarette smoke extract (CSE). The cell viability and function of the co-culture system were measured on day 14. Markers of bone cell differentiation and oxidative stress were evaluated at gene and protein levels on day 7. The results showed that exposure to CSE induced osteoporotic-like alterations in the co-culture system, while 1.5 µg/mL MBE and 50 µg/mL GE improved CSE-impaired osteoblast function and decreased CSE-induced osteoclast function. The molecular mechanism of MBE and GE in preventing CSE-induced bone cell damage is linked with the inhibition of the NF-κB signaling pathway and the activation of the Nrf2 signaling pathway. Therefore, MBE and GE can reduce CSE-induced detrimental effects on bone cells and, thus, prevent smoking-induced alterations in bone cell homeostasis. These two antioxidants are thus suitable supplements to support bone regeneration in smokers.
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Wang M, Deng Z, Guo Y, Xu P. Designing functional hyaluronic acid-based hydrogels for cartilage tissue engineering. Mater Today Bio 2022; 17:100495. [PMID: 36420054 PMCID: PMC9676212 DOI: 10.1016/j.mtbio.2022.100495] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 11/09/2022] [Accepted: 11/11/2022] [Indexed: 11/14/2022] Open
Abstract
Damage to cartilage tissues is often difficult to repair owing to chronic inflammation and a lack of bioactive factors. Therefore, developing bioactive materials, such as hydrogels acting as extracellular matrix mimics, that can inhibit the inflammatory microenvironment and promote cartilage repair is crucial. Hyaluronic acid, which exists in cartilage and synovial fluid, has been extensively investigated for cartilage tissue engineering because of its promotion of cell adhesion and proliferation, regulation of inflammation, and enhancement of cartilage regeneration. However, hyaluronic acid-based hydrogels have poor degradation rates and unfavorable mechanical properties, limiting their application in cartilage tissue engineering. Recently, various multifunctional hyaluronic acid-based hydrogels, including alkenyl, aldehyde, thiolated, phenolized, hydrazide, and host–guest group-modified hydrogels, have been extensively studied for use in cartilage tissue engineering. In this review, we summarize the recent progress in the multifunctional design of hyaluronic acid-based hydrogels and their application in cartilage tissue engineering. Moreover, we outline the future research prospects and directions in cartilage tissue regeneration. This would provide theoretical guidance for developing hyaluronic acid-based hydrogels with specific properties to satisfy the requirements of cartilage tissue repair.
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8
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Bonifacio MA, Cometa S, Cochis A, Scalzone A, Gentile P, Scalia AC, Rimondini L, Mastrorilli P, De Giglio E. A bioprintable gellan gum/lignin hydrogel: a smart and sustainable route for cartilage regeneration. Int J Biol Macromol 2022; 216:336-346. [PMID: 35798077 DOI: 10.1016/j.ijbiomac.2022.07.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 06/29/2022] [Accepted: 07/01/2022] [Indexed: 11/30/2022]
Abstract
In this work a hydrogel, based on a blend of two gellan gums with different acyl content embedding lignin (up to 0.4%w/v) and crosslinked with magnesium ions, was developed for cartilage regeneration. The physico-chemical characterizations established that no chemical interaction between lignin and polysaccharides was detected. Lignin achieved up to 80 % of ascorbic acid's radical scavenging activity in vitro on DPPH and ABTS radicals. Viability of hMSC onto hydrogel containing lignin resulted comparable to the lignin-free one (>70 % viable cells, p > 0.05). The presence of lignin improved the hMSC 3D-constructs chondrogenesis, bringing to a significant (p < 0.05) up-regulation of the collagen type II, aggrecan and SOX 9 chondrogenic genes, and conferred bacteriostatic properties to the hydrogel, reducing the proliferation of S. aureus and S. epidermidis. Finally, cellularized 3D-constructs were manufactured via 3D-bioprinting confirming the processability of the formulation as a bioink and its unique biological features for creating a physiological milieu for cell growth.
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Affiliation(s)
- Maria A Bonifacio
- Department of Chemistry, University of Bari, Via Orabona 4, 70126 Bari, Italy; INSTM, National Consortium of Materials Science and Technology, Via G. Giusti 9, 50121 Florence, Italy.
| | | | - Andrea Cochis
- Center for Translational Research on Autoimmune and Allergic Disease, CAAD, Department of Health Sciences, 28100 Novara, Italy.
| | - Annachiara Scalzone
- Newcastle University, School of Engineering, Claremont Road, NE1 7RU Newcastle upon Tyne, United Kingdom.
| | - Piergiorgio Gentile
- Newcastle University, School of Engineering, Claremont Road, NE1 7RU Newcastle upon Tyne, United Kingdom.
| | - Alessandro C Scalia
- Center for Translational Research on Autoimmune and Allergic Disease, CAAD, Department of Health Sciences, 28100 Novara, Italy.
| | - Lia Rimondini
- Center for Translational Research on Autoimmune and Allergic Disease, CAAD, Department of Health Sciences, 28100 Novara, Italy.
| | - Piero Mastrorilli
- DICATECh Department Politecnico di Bari, Via Orabona 4, 70126 Bari, Italy.
| | - Elvira De Giglio
- Department of Chemistry, University of Bari, Via Orabona 4, 70126 Bari, Italy; INSTM, National Consortium of Materials Science and Technology, Via G. Giusti 9, 50121 Florence, Italy.
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Sheppard AJ, Barfield AM, Barton S, Dong Y. Understanding Reactive Oxygen Species in Bone Regeneration: A Glance at Potential Therapeutics and Bioengineering Applications. Front Bioeng Biotechnol 2022; 10:836764. [PMID: 35198545 PMCID: PMC8859442 DOI: 10.3389/fbioe.2022.836764] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 01/19/2022] [Indexed: 01/24/2023] Open
Abstract
Although the complex mechanism by which skeletal tissue heals has been well described, the role of reactive oxygen species (ROS) in skeletal tissue regeneration is less understood. It has been widely recognized that a high level of ROS is cytotoxic and inhibits normal cellular processes. However, with more recent discoveries, it is evident that ROS also play an important, positive role in skeletal tissue repair, specifically fracture healing. Thus, dampening ROS levels can potentially inhibit normal healing. On the same note, pathologically high levels of ROS cause a sharp decline in osteogenesis and promote nonunion in fracture repair. This delicate balance complicates the efforts of therapeutic and engineering approaches that aim to modulate ROS for improved tissue healing. The physiologic role of ROS is dependent on a multitude of factors, and it is important for future efforts to consider these complexities. This review first discusses how ROS influences vital signaling pathways involved in the fracture healing response, including how they affect angiogenesis and osteogenic differentiation. The latter half glances at the current approaches to control ROS for improved skeletal tissue healing, including medicinal approaches, cellular engineering, and enhanced tissue scaffolds. This review aims to provide a nuanced view of the effects of ROS on bone fracture healing which will inspire novel techniques to optimize the redox environment for skeletal tissue regeneration.
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Affiliation(s)
- Aaron J. Sheppard
- Department of Orthopaedic Surgery, Louisiana State University Health Shreveport, Shreveport, LA, United States
- School of Medicine, Louisiana State University Health Shreveport, Shreveport, LA, United States
| | - Ann Marie Barfield
- Department of Orthopaedic Surgery, Louisiana State University Health Shreveport, Shreveport, LA, United States
- School of Medicine, Louisiana State University Health Shreveport, Shreveport, LA, United States
| | - Shane Barton
- Department of Orthopaedic Surgery, Louisiana State University Health Shreveport, Shreveport, LA, United States
| | - Yufeng Dong
- Department of Orthopaedic Surgery, Louisiana State University Health Shreveport, Shreveport, LA, United States
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New Insights into Cartilage Tissue Engineering: Improvement of Tissue-Scaffold Integration to Enhance Cartilage Regeneration. BIOMED RESEARCH INTERNATIONAL 2022; 2022:7638245. [PMID: 35118158 PMCID: PMC8807044 DOI: 10.1155/2022/7638245] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Revised: 12/20/2021] [Accepted: 12/29/2021] [Indexed: 02/05/2023]
Abstract
Distinctive characteristics of articular cartilage such as avascularity and low chondrocyte conversion rate present numerous challenges for orthopedists. Tissue engineering is a novel approach that ameliorates the regeneration process by exploiting the potential of cells, biodegradable materials, and growth factors. However, problems exist with the use of tissue-engineered construct, the most important of which is scaffold-cartilage integration. Recently, many attempts have been made to address this challenge via manipulation of cellular, material, and biomolecular composition of engineered tissue. Hence, in this review, we highlight strategies that facilitate cartilage-scaffold integration. Recent advances in where efficient integration between a scaffold and native cartilage could be achieved are emphasized, in addition to the positive aspects and remaining problems that will drive future research.
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11
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Shafiq M, Chen Y, Hashim R, He C, Mo X, Zhou X. Reactive Oxygen Species-Based Biomaterials for Regenerative Medicine and Tissue Engineering Applications. Front Bioeng Biotechnol 2022; 9:821288. [PMID: 35004664 PMCID: PMC8733692 DOI: 10.3389/fbioe.2021.821288] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 12/10/2021] [Indexed: 11/13/2022] Open
Abstract
Reactive oxygen species (ROS), acting as essential mediators in biological system, play important roles in the physiologic and pathologic processes, including cellular signal transductions and cell homeostasis interference. Aberrant expression of ROS in tissue microenvironment can be caused by the internal/external stimuli and tissue injury, which may leads to an elevated level of oxidative stress, inflammatory response, and cellular damage as well as disruption in the tissue repair process. To prevent the formation of excess ROS around the injury site, advanced biomaterials can be remodeled or instructed to release their payloads in an injury microenvironment-responsive fashion to regulate the elevated levels of the ROS, which may also help downregulate the oxidative stress and promote tissue regeneration. A multitude of scaffolds and bioactive cues have been reported to promote the regeneration of damaged tissues based on the scavenging of free radicals and reactive species that confer high protection to the cellular activity and tissue function. In this review, we outline the underlying mechanism of ROS generation in the tissue microenvironment and present a comprehensive review of ROS-scavenging biomaterials for regenerative medicine and tissue engineering applications, including soft tissues regeneration, bone and cartilage repair as well as wound healing. Additionally, we highlight the strategies for the regulation of ROS by scaffold design and processing technology. Taken together, developing ROS-based biomaterials may not only help develop advanced platforms for improving injury microenvironment but also accelerate tissue regeneration.
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Affiliation(s)
- Muhammad Shafiq
- Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, China.,Department of Biotechnology, Faculty of Life Science, University of Central Punjab (UCP), Lahore, Pakistan
| | - Yujie Chen
- Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, China
| | - Rashida Hashim
- Department of Chemistry, Faculty of Science, Quaid-i-Azam University (QAU), Islamabad, Pakistan
| | - Chuanglong He
- Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, China
| | - Xiumei Mo
- Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, China
| | - Xiaojun Zhou
- Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, China
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