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Song J, Zeng X, Li C, Yin H, Mao S, Ren D. Alteration in cartilage matrix stiffness as an indicator and modulator of osteoarthritis. Biosci Rep 2024; 44:BSR20231730. [PMID: 38014522 PMCID: PMC10794814 DOI: 10.1042/bsr20231730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 11/22/2023] [Accepted: 11/24/2023] [Indexed: 11/29/2023] Open
Abstract
Osteoarthritis (OA) is characterized by cartilage degeneration and destruction, leading to joint ankylosis and disability. The major challenge in diagnosing OA at early stage is not only lack of clinical symptoms but also the insufficient histological and immunohistochemical signs. Alteration in cartilage stiffness during OA progression, especially at OA initiation, has been confirmed by growing evidences. Moreover, the stiffness of cartilage extracellular matrix (ECM), pericellular matrix (PCM) and chondrocytes during OA development are dynamically changed in unique and distinct fashions, revealing possibly inconsistent conclusions when detecting cartilage matrix stiffness at different locations and scales. In addition, it will be discussed regarding the mechanisms through which OA-related cartilage degenerations exhibit stiffened or softened matrix, highlighting some critical events that generally incurred to cartilage stiffness alteration, as well as some typical molecules that participated in constituting the mechanical properties of cartilage. Finally, in vitro culturing chondrocytes in various stiffness-tunable scaffolds provided a reliable method to explore the matrix stiffness-dependent modulation of chondrocyte metabolism, which offers valuable information on optimizing implant scaffolds to maximally promote cartilage repair and regeneration during OA. Overall, this review systematically and comprehensively elucidated the current progresses in the relationship between cartilage stiffness alteration and OA progression. We hope that deeper attention and understanding in this researching field will not only develop more innovative methods in OA early detection and diagnose but also provide promising ideas in OA therapy and prognosis.
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Affiliation(s)
- Jing Song
- Qingdao University Affiliated Qingdao Women and Children’s Hospital, Department of Stomatology Medical Center, Qingdao University, Qingdao, Shandong, CN, China
| | - Xuemin Zeng
- The Affiliated Hospital of Qingdao University, Department of Stomatology Medical Center, Qingdao University, Qingdao, Shandong, CN, China
| | - Chenzhi Li
- The Affiliated Hospital of Qingdao University, Department of Stomatology Medical Center, Qingdao University, Qingdao, Shandong, CN, China
| | - Hongyan Yin
- Institute of Hybrid Materials, College of Materials Science and Engineering, Qingdao University, Qingdao, Shandong, CN, China
| | - Sui Mao
- Institute of Hybrid Materials, College of Materials Science and Engineering, Qingdao University, Qingdao, Shandong, CN, China
| | - Dapeng Ren
- The Affiliated Hospital of Qingdao University, Department of Stomatology Medical Center, Qingdao University, Qingdao, Shandong, CN, China
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Batool S, Roth BJ, Xia Y. Depth-Dependent Strain Model (1D) for Anisotropic Fibrils in Articular Cartilage. MATERIALS (BASEL, SWITZERLAND) 2024; 17:238. [PMID: 38204091 PMCID: PMC10779946 DOI: 10.3390/ma17010238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Revised: 12/21/2023] [Accepted: 12/29/2023] [Indexed: 01/12/2024]
Abstract
The mechanical response of articular cartilage (AC) under compression is anisotropic and depth-dependent. AC is osmotically active, and its intrinsic osmotic swelling pressure is balanced by its collagen fibril network. This mechanism requires the collagen fibers to be under a state of tensile pre-strain. A simple mathematical model is used to explain the depth-dependent strain calculations observed in articular cartilage under 1D axial compression (perpendicular to the articular surface). The collagen fibers are under pre-strain, influenced by proteoglycan concentration (fixed charged density, FCD) and collagen stiffness against swelling stress. The stiffness is introduced in our model as an anisotropic modulus that varies with fibril orientation through tissue depth. The collagen fibers are stiffer to stretching parallel to their length than perpendicular to it; when combined with depth-varying FCD, the model successfully predicts how tissue strains decrease with depth during compression. In summary, this model highlights that the mechanical properties of cartilage depend not only on proteoglycan concentration but also on the intrinsic properties of the pre-strained collagen network. These properties are essential for the proper functioning of articular cartilage.
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Affiliation(s)
| | - Bradley J. Roth
- Department of Physics, Oakland University, Rochester, MI 48309, USA; (S.B.); (Y.X.)
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Chen L, Li C, He A, Tong H, Lu X, Yang R, Chen X, Wu X, Wang X, Wang S, Ma J, Fu Y, Zhang T. Changes of Age-related Auricular Cartilage Plasticity and Biomechanical Property in a Rabbit Model. Laryngoscope 2023; 133:88-94. [PMID: 35385162 DOI: 10.1002/lary.30124] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 02/18/2022] [Accepted: 03/15/2022] [Indexed: 02/02/2023]
Abstract
OBJECTIVES Ear molding is an emerging technique that can correct auricular deformities. Treatment initiation time is the most important prognostic determinant of ear molding. Here, we aimed to examine why auricular cartilage plasticity appeared to diminish with age. Thus, we characterized age-related changes in the biomechanical, biochemical, and morphological properties of auricular cartilage. METHODS New Zealand rabbits were used as the experimental animal. We examined immature [postnatal 0 day (P0), 5 days (P5), 15 days (P15)], young [2 months (2M)], and mature [6 months (6M)] rabbits. Rabbits' ears were splinted and folded using adhesive fixation strips. Folding duration ranged from 1 day to 5 days to 10 days. Photographs were taken to calculate the retained fold angle. Cartilage morphology and extracellular matrix (ECM) content were examined histologically (using hematoxylin-eosin, Safranin O, elastic Van Gieson, and Masson's trichrome). Water content, DNA content, and cell density were also analyzed. Biomechanical properties were measured using a Nano indenter. RESULTS Immature ears had smaller angles after strip removal, and the angled deformation lasted a longer time. Cartilage matrix compositions, including glycosaminoglycan (GAG), elastin fiber, and collagen, increased over development. The water content, DNA content, and cell density decreased with age. Young's modulus was significantly higher in mature cartilage. CONCLUSIONS Here, we successfully established an animal model of ear molding and demonstrated that immature cartilage was associated with better plasticity. We also found that the cartilage's biomechanical property increased with the accumulation of ECM. The biomechanical change could underlie age-related shape plasticity. LEVEL OF EVIDENCE NA Laryngoscope, 133:88-94, 2023.
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Affiliation(s)
- Lili Chen
- ENT institute, Eye & ENT Hospital, Fudan University, Shanghai, China.,Department of Facial Plastic and Reconstructive Surgery, Eye & ENT Hospital, Fudan University, Shanghai, China
| | - Chenlong Li
- ENT institute, Eye & ENT Hospital, Fudan University, Shanghai, China.,Department of Facial Plastic and Reconstructive Surgery, Eye & ENT Hospital, Fudan University, Shanghai, China
| | - Aijuan He
- ENT institute, Eye & ENT Hospital, Fudan University, Shanghai, China.,Department of Facial Plastic and Reconstructive Surgery, Eye & ENT Hospital, Fudan University, Shanghai, China
| | - Hua Tong
- ENT institute, Eye & ENT Hospital, Fudan University, Shanghai, China.,Department of Facial Plastic and Reconstructive Surgery, Eye & ENT Hospital, Fudan University, Shanghai, China
| | - Xinyu Lu
- ENT institute, Eye & ENT Hospital, Fudan University, Shanghai, China.,Department of Facial Plastic and Reconstructive Surgery, Eye & ENT Hospital, Fudan University, Shanghai, China
| | - Run Yang
- ENT institute, Eye & ENT Hospital, Fudan University, Shanghai, China.,Department of Facial Plastic and Reconstructive Surgery, Eye & ENT Hospital, Fudan University, Shanghai, China
| | - Xin Chen
- ENT institute, Eye & ENT Hospital, Fudan University, Shanghai, China.,Department of Facial Plastic and Reconstructive Surgery, Eye & ENT Hospital, Fudan University, Shanghai, China
| | - Xu Wu
- ENT institute, Eye & ENT Hospital, Fudan University, Shanghai, China.,Department of Facial Plastic and Reconstructive Surgery, Eye & ENT Hospital, Fudan University, Shanghai, China
| | - Xin Wang
- ENT institute, Eye & ENT Hospital, Fudan University, Shanghai, China.,Department of Facial Plastic and Reconstructive Surgery, Eye & ENT Hospital, Fudan University, Shanghai, China
| | - Shuqi Wang
- ENT institute, Eye & ENT Hospital, Fudan University, Shanghai, China.,Department of Facial Plastic and Reconstructive Surgery, Eye & ENT Hospital, Fudan University, Shanghai, China
| | - Jing Ma
- ENT institute, Eye & ENT Hospital, Fudan University, Shanghai, China.,Department of Facial Plastic and Reconstructive Surgery, Eye & ENT Hospital, Fudan University, Shanghai, China
| | - Yaoyao Fu
- ENT institute, Eye & ENT Hospital, Fudan University, Shanghai, China.,Department of Facial Plastic and Reconstructive Surgery, Eye & ENT Hospital, Fudan University, Shanghai, China
| | - Tianyu Zhang
- ENT institute, Eye & ENT Hospital, Fudan University, Shanghai, China.,Department of Facial Plastic and Reconstructive Surgery, Eye & ENT Hospital, Fudan University, Shanghai, China.,NHC Key Laboratory of Hearing Medicine, Fudan University, Shanghai, China
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Jessop ZM, Hague A, Dobbs TD, Stewart KJ, Whitaker IS. Facial Cartilaginous Reconstruction-A Historical Perspective, State-of-the-Art, and Future Directions. Front Surg 2021; 8:680186. [PMID: 34485372 PMCID: PMC8415446 DOI: 10.3389/fsurg.2021.680186] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Accepted: 07/19/2021] [Indexed: 11/13/2022] Open
Abstract
Importance: Reconstruction of facial deformity poses a significant surgical challenge due to the psychological, functional, and aesthetic importance of this anatomical area. There is a need to provide not only an excellent colour and contour match for skin defects, but also a durable cartilaginous structural replacement for nasal or auricular defects. The purpose of this review is to describe the history of, and state-of-the-art techniques within, facial cartilaginous surgery, whilst highlighting recent advances and future directions for this continually advancing specialty. Observations: Limitations of synthetic implants for nasal and auricular reconstruction, such as silicone and porous polyethylene, have meant that autologous cartilage tissue for such cases remains the current gold standard. Similarly, tissue engineering approaches using unrelated cells and synthetic scaffolds have shown limited in vivo success. There is increasing recognition that both the intrinsic and extrinsic microenvironment are important for tissue engineering and synthetic scaffolds fail to provide the necessary cues for cartilage matrix secretion. Conclusions and Relevance: We discuss the first-in-man studies in the context of biomimetic and developmental approaches to engineering durable cartilage for clinical translation. Implementation of engineered autologous tissue into clinical practise could eliminate donor site morbidity and represent the next phase of the facial reconstruction evolution.
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Affiliation(s)
- Zita M. Jessop
- Reconstructive Surgery and Regenerative Medicine Research Group, Swansea University Medical School, Swansea, United Kingdom
- The Welsh Centre for Burns and Plastic Surgery, Morriston Hospital, Swansea, United Kingdom
| | - Adam Hague
- The Welsh Centre for Burns and Plastic Surgery, Morriston Hospital, Swansea, United Kingdom
| | - Thomas D. Dobbs
- Reconstructive Surgery and Regenerative Medicine Research Group, Swansea University Medical School, Swansea, United Kingdom
- The Welsh Centre for Burns and Plastic Surgery, Morriston Hospital, Swansea, United Kingdom
| | - Kenneth J. Stewart
- Department of Plastic and Reconstructive Surgery, Royal Hospital for Sick Children, Edinburgh, United Kingdom
| | - Iain S. Whitaker
- Reconstructive Surgery and Regenerative Medicine Research Group, Swansea University Medical School, Swansea, United Kingdom
- The Welsh Centre for Burns and Plastic Surgery, Morriston Hospital, Swansea, United Kingdom
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Paternoster JL, Vranckx JJ. State of the art of clinical applications of Tissue Engineering in 2021. TISSUE ENGINEERING PART B-REVIEWS 2021; 28:592-612. [PMID: 34082599 DOI: 10.1089/ten.teb.2021.0017] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Tissue engineering (TE) was introduced almost 30 years ago as a potential technique for regenerating human tissues. However, despite promising laboratory findings, the complexity of the human body, scientific hurdles, and lack of persistent long-term funding still hamper its translation towards clinical applications. In this report, we compile an inventory of clinically applied TE medical products relevant to surgery. A review of the literature, including articles published within the period from 1991 to 2020, was performed according to the PRISMA protocol, using databanks PubMed, Cochrane Library, Web of Science, and Clinicaltrials.gov. We identified 1039 full-length articles as eligible; due to the scarcity of clinical, randomised, controlled trials and case studies, we extended our search towards a broad surgical spectrum. Forty papers involved clinical TE studies. Amongst these, 7 were related to TE protocols for cartilage applied in the reconstruction of nose, ear, and trachea. Nine papers reported TE protocols for articular cartilage, 9 for urological purposes, 7 described TE strategies for cardiovascular aims, and 8 for dermal applications. However, only two clinical studies reported on three-dimensional (3D) and functional long-lasting TE constructs. The concept of generating 3D TE constructs and organs based on autologous molecules and cells is intriguing and promising. The first translational tissue-engineered products and techniques have been clinically implemented. However, despite the 30 years of research and development in this field, TE is still in its clinical infancy. Multiple experimental, ethical, budgetary, and regulatory difficulties hinder its rapid translation. Nevertheless, the first clinical applications show great promise and indicate that the translation towards clinical medical implementation has finally started.
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Affiliation(s)
- Julie Lien Paternoster
- UZ Leuven Campus Gasthuisberg Hospital Pharmacy, 574134, Plastic Surgery , Herestraat 49, Leuven, Belgium, 3000;
| | - Jan Jeroen Vranckx
- Universitaire Ziekenhuizen Leuven, 60182, Plastic and Reconstructive Surgery, Leuven, Belgium;
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