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Tangbjerg M, Damgaard A, Karlsen A, Svensson RB, Schjerling P, Gelabert-Rebato M, Pankratova S, Sangild PT, Kjaer M, Mackey AL. Insulin-like growth factor-1 infusion in preterm piglets does not affect growth parameters of skeletal muscle or tendon tissue. Exp Physiol 2024. [PMID: 38980930 DOI: 10.1113/ep092010] [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: 05/14/2024] [Accepted: 06/21/2024] [Indexed: 07/11/2024]
Abstract
Prematurity has physical consequences, such as lower birth weight, decreased muscle mass and increased risk of adult-onset metabolic disease. Insulin-like growth factor 1 (IGF-1) has therapeutic potential to improve the growth and quality of muscle and tendon in premature births, and thus attenuate some of these sequalae. We investigated the effect of IGF-1 on extensor carpi radialis muscle and biceps brachii tendon of preterm piglets. The preterm group consisted of 19-day-old preterm (10 days early) piglets, treated with either IGF-1 or vehicle. Term controls consisted of groups of 9-day-old piglets (D9) and 19-day-old piglets (D19). Muscle samples were analysed by immunofluorescence to determine the cross-sectional area (CSA) of muscle fibres, fibre type composition, satellite cell content and central nuclei-containing fibres in the muscle. Tendon samples were analysed for CSA, collagen content and maturation, and vascularization. Gene expression of the tendon was measured by RT-qPCR. Across all endpoints, we found no significant effect of IGF-1 treatment on preterm piglets. Preterm piglets had smaller muscle fibre CSA compared to D9 and D19 control group. Satellite cell content was similar across all groups. For tendon, we found an effect of age on tendon CSA, and mRNA levels of COL1A1, tenomodulin and scleraxis. Immunoreactivity for elastin and CD31, and several markers of tendon maturation, were increased in D9 compared to the preterm piglets. Collagen content was similar across groups. IGF-1 treatment of preterm-born piglets does not influence the growth and maturation of skeletal muscle and tendon.
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Affiliation(s)
- Malene Tangbjerg
- Institute of Sports Medicine Copenhagen, Department of Orthopaedic Surgery, Copenhagen University Hospital - Bispebjerg and Frederiksberg, Copenhagen, Denmark
- Center for Healthy Aging, Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Ann Damgaard
- Institute of Sports Medicine Copenhagen, Department of Orthopaedic Surgery, Copenhagen University Hospital - Bispebjerg and Frederiksberg, Copenhagen, Denmark
- Center for Healthy Aging, Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Anders Karlsen
- Center for Healthy Aging, Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
- Xlab, Center for Healthy Aging, Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Rene B Svensson
- Institute of Sports Medicine Copenhagen, Department of Orthopaedic Surgery, Copenhagen University Hospital - Bispebjerg and Frederiksberg, Copenhagen, Denmark
- Center for Healthy Aging, Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Peter Schjerling
- Institute of Sports Medicine Copenhagen, Department of Orthopaedic Surgery, Copenhagen University Hospital - Bispebjerg and Frederiksberg, Copenhagen, Denmark
- Center for Healthy Aging, Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Miriam Gelabert-Rebato
- Research Institute of Biomedical and Health Sciences (IUIBS), University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Canary Islands, Spain
| | - Stanislava Pankratova
- Comparative Pediatrics and Nutrition, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg, Denmark
| | - Per Torp Sangild
- Comparative Pediatrics and Nutrition, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg, Denmark
- Department of Neonatology, Rigshospitalet, Copenhagen, Denmark
- Department of Pediatrics, Odense University Hospital, Odense, Denmark
| | - Michael Kjaer
- Institute of Sports Medicine Copenhagen, Department of Orthopaedic Surgery, Copenhagen University Hospital - Bispebjerg and Frederiksberg, Copenhagen, Denmark
- Center for Healthy Aging, Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Abigail L Mackey
- Institute of Sports Medicine Copenhagen, Department of Orthopaedic Surgery, Copenhagen University Hospital - Bispebjerg and Frederiksberg, Copenhagen, Denmark
- Center for Healthy Aging, Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
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Liu N, Jiang J, Liu T, Chen H, Jiang N. Compositional, Structural, and Biomechanical Properties of Three Different Soft Tissue-Hard Tissue Insertions: A Comparative Review. ACS Biomater Sci Eng 2024; 10:2659-2679. [PMID: 38697939 DOI: 10.1021/acsbiomaterials.3c01796] [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: 05/05/2024]
Abstract
Connective tissue attaches to bone across an insertion with spatial gradients in components, microstructure, and biomechanics. Due to regional stress concentrations between two mechanically dissimilar materials, the insertion is vulnerable to mechanical damage during joint movements and difficult to repair completely, which remains a significant clinical challenge. Despite interface stress concentrations, the native insertion physiologically functions as the effective load-transfer device between soft tissue and bone. This review summarizes tendon, ligament, and meniscus insertions cross-sectionally, which is novel in this field. Herein, the similarities and differences between the three kinds of insertions in terms of components, microstructure, and biomechanics are compared in great detail. This review begins with describing the basic components existing in the four zones (original soft tissue, uncalcified fibrocartilage, calcified fibrocartilage, and bone) of each kind of insertion, respectively. It then discusses the microstructure constructed from collagen, glycosaminoglycans (GAGs), minerals and others, which provides key support for the biomechanical properties and affects its physiological functions. Finally, the review continues by describing variations in mechanical properties at the millimeter, micrometer, and nanometer scale, which minimize stress concentrations and control stretch at the insertion. In summary, investigating the contrasts between the three has enlightening significance for future directions of repair strategies of insertion diseases and for bioinspired approaches to effective soft-hard interfaces and other tough and robust materials in medicine and engineering.
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Affiliation(s)
- Nian Liu
- West China School of Stomatology, Sichuan University, Chengdu, Sichuan 610207, China
| | - Jialing Jiang
- West China School of Stomatology, Sichuan University, Chengdu, Sichuan 610207, China
| | - Tiancheng Liu
- West China Hospital, Sichuan University, Chengdu, Sichuan 610207, China
| | - Haozhe Chen
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan 610041, China
| | - Nan Jiang
- State Key Laboratory of Oral Diseases, & National Clinical Research Center for Oral Disease, & West China Hospital of Stomatology and the Research Center for Nano Biomaterials, Analytical & Testing Center, Sichuan University, Chengdu, Sichuan 610041, China
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Jacobson KR, Saleh AM, Lipp SN, Tian C, Watson AR, Luetkemeyer CM, Ocken AR, Spencer SL, Kinzer-Ursem TL, Calve S. Extracellular matrix protein composition dynamically changes during murine forelimb development. iScience 2024; 27:108838. [PMID: 38303699 PMCID: PMC10831947 DOI: 10.1016/j.isci.2024.108838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 10/02/2023] [Accepted: 01/03/2024] [Indexed: 02/03/2024] Open
Abstract
The extracellular matrix (ECM) is an integral part of multicellular organisms, connecting different cell layers and tissue types. During morphogenesis and growth, tissues undergo substantial reorganization. While it is intuitive that the ECM remodels in concert, little is known regarding how matrix composition and organization change during development. Here, we quantified ECM protein dynamics in the murine forelimb during appendicular musculoskeletal morphogenesis (embryonic days 11.5-14.5) using tissue fractionation, bioorthogonal non-canonical amino acid tagging, and mass spectrometry. Our analyses indicated that ECM protein (matrisome) composition in the embryonic forelimb changed as a function of development and growth, was distinct from other developing organs (brain), and was altered in a model of disease (osteogenesis imperfecta murine). Additionally, the tissue distribution for select matrisome was assessed via immunohistochemistry in the wild-type embryonic and postnatal musculoskeletal system. This resource will guide future research investigating the role of the matrisome during complex tissue development.
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Affiliation(s)
- Kathryn R. Jacobson
- Purdue University Interdisciplinary Life Science Program, Purdue University, West Lafayette, IN 47907, USA
- Department of Agricultural and Biological Engineering, Purdue University, West Lafayette, IN 47907, USA
| | - Aya M. Saleh
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN 47907, USA
| | - Sarah N. Lipp
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN 47907, USA
- The Indiana University Medical Scientist/Engineer Training Program, Indiana University, Indianapolis, IN 46202, USA
| | - Chengzhe Tian
- Department of Biochemistry, University of Colorado Boulder, Boulder, CO 80303, USA
- BioFrontiers Institute, University of Colorado Boulder, Boulder, CO 80303, USA
- Research Center for Molecular Medicine (CEMM) of the Austrian Academy of Sciences, Vienna, Austria
| | - Audrey R. Watson
- Department of Biochemistry, University of Colorado Boulder, Boulder, CO 80303, USA
- BioFrontiers Institute, University of Colorado Boulder, Boulder, CO 80303, USA
| | - Callan M. Luetkemeyer
- Paul M. Rady Department of Mechanical Engineering, University of Colorado Boulder, Boulder, CO 80309, USA
| | - Alexander R. Ocken
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN 47907, USA
| | - Sabrina L. Spencer
- Department of Biochemistry, University of Colorado Boulder, Boulder, CO 80303, USA
- BioFrontiers Institute, University of Colorado Boulder, Boulder, CO 80303, USA
| | - Tamara L. Kinzer-Ursem
- Purdue University Interdisciplinary Life Science Program, Purdue University, West Lafayette, IN 47907, USA
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN 47907, USA
| | - Sarah Calve
- Purdue University Interdisciplinary Life Science Program, Purdue University, West Lafayette, IN 47907, USA
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN 47907, USA
- BioFrontiers Institute, University of Colorado Boulder, Boulder, CO 80303, USA
- Paul M. Rady Department of Mechanical Engineering, University of Colorado Boulder, Boulder, CO 80309, USA
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Han L, Hu N, Wang C, Ye Z, Wang T, Lan F. Platelet-rich plasma-derived exosomes promote rotator cuff tendon-bone healing. Injury 2024; 55:111212. [PMID: 37984013 DOI: 10.1016/j.injury.2023.111212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 11/13/2023] [Indexed: 11/22/2023]
Abstract
BACKGROUND Rotator cuff tear (RCT) is the most common type of shoulder joint injury, platelet-rich plasma-derived exosomes (PRP-exos) are highly promising in tissue repair and regeneration. The purpose of this study was to determine the function of PRP-exos in rotator cuff tendon-bone healing. METHODS PRP-exos were isolated from the rabbit whole blood by differential ultracentrifugation and characterized through transmission electron microscopy assay, nanoparticle tracking analysis, and western blotting. Alkaline phosphatase and Von Kossa staining were used to show tendon-derived stem cell (TDSC) differentiation. RT-qPCR and western blotting were performed to detect COL II, SOX-9, and TIMP-1. To determine the therapeutic effects of PRP-exos in vivo. Thirty New Zealand white rabbits were divided into control, model, and PRP-exos groups. The RCT animal model was constructed. The changes in tendon-bone tissue were determined by HE staining. Contents of COL-II, SOX-9, and TIMP-1 were determined by immunohistochemistry staining. RESULTS PRP-exos were successfully isolated from rabbit blood. PRP-exos promoted TDSC proliferation and differentiation and also induced tendon-specific markers COL II, SOX-9, and TIMP-1 production. In vivo study revealed that PRP-exos promoted early healing of injured tendons. Rabbits treated with PRP-exos had better tissue arrangement in the tear site. Additionally, the contents of COL II, SOX-9, and TIMP-1 were also increased in the RCT rabbit model after PRP-exos treatment. CONCLUSIONS PRP-exos enhanced tendon-bone healing by promoting TDSC proliferation and differentiation. This finding indicates that PRP-exos can serve as a promising strategy to treat rotator cuff tendon-bone healing.
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Affiliation(s)
- Lei Han
- Department of Orthopedics, Jiangnan Hospital Affiliated to Zhejiang Chinese Medical University (Hangzhou Xiaoshan Hospital of Traditional Chinese Medicine), Hangzhou, 321000, China
| | - Ningrui Hu
- School of Clinical Chinese Medicine, Hubei University of Chinese Medicine, Wuhan, 430065, China
| | - Canfeng Wang
- Department of Orthopedics, Jiangnan Hospital Affiliated to Zhejiang Chinese Medical University (Hangzhou Xiaoshan Hospital of Traditional Chinese Medicine), Hangzhou, 321000, China
| | - Zhengcong Ye
- Department of Orthopedics, Jiangnan Hospital Affiliated to Zhejiang Chinese Medical University (Hangzhou Xiaoshan Hospital of Traditional Chinese Medicine), Hangzhou, 321000, China
| | - Tuo Wang
- Department of Orthopedics, Jiangnan Hospital Affiliated to Zhejiang Chinese Medical University (Hangzhou Xiaoshan Hospital of Traditional Chinese Medicine), Hangzhou, 321000, China
| | - Fang Lan
- Department of Orthopedics, Lishui TCM Hospital Affiliated to Zhejiang Chinese Medical University (Lishui Hospital of Traditional Chinese Medicine), No.800, Zhongshan Street, Lishui, 323000, China.
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Nunna B, Parihar P, Wanjari M, Shetty N, Bora N. High-Resolution Imaging Insights into Shoulder Joint Pain: A Comprehensive Review of Ultrasound and Magnetic Resonance Imaging (MRI). Cureus 2023; 15:e48974. [PMID: 38111406 PMCID: PMC10725840 DOI: 10.7759/cureus.48974] [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: 08/28/2023] [Accepted: 11/17/2023] [Indexed: 12/20/2023] Open
Abstract
Shoulder joint pain is a complex and prevalent clinical concern affecting individuals across various ages and lifestyles. This review delves into the pivotal role of high-resolution imaging techniques, namely ultrasound and magnetic resonance imaging (MRI), in the comprehensive assessment and management of shoulder joint pain. We explore the anatomical foundations of the shoulder, common etiologies of pain, and the significance of precise diagnosis. High-resolution imaging facilitates the identification of various shoulder pathologies and is crucial in treatment planning, surgical interventions, and long-term prognosis assessment. We examine emerging technologies, discuss challenges and limitations, and chart potential future developments, emphasizing the ongoing evolution of imaging in this critical healthcare domain. In conclusion, high-resolution imaging is an indispensable tool, continually advancing to meet the diagnostic and therapeutic needs of individuals grappling with shoulder joint pain.
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Affiliation(s)
- Bhagyasri Nunna
- Radiology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education & Research, Wardha, IND
| | - Pratap Parihar
- Radiology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education & Research, Wardha, IND
| | - Mayur Wanjari
- Research and Development, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education & Research, Wardha, IND
| | - Neha Shetty
- Radiology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education & Research, Wardha, IND
| | - Nikita Bora
- Radiology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education & Research, Wardha, IND
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Zhang Y, Lu S, Yu G, Wang C, Zhao Q. NAMPT-Improved Mitochondrial Function Alleviates Degenerative Rotator Cuff Tendinopathy in Aged Mice. J Bone Joint Surg Am 2023; 105:1502-1511. [PMID: 37616388 DOI: 10.2106/jbjs.22.00894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/26/2023]
Abstract
BACKGROUND Age-related rotator cuff tendinopathy (RCT) is associated with increased rotator cuff tear and postoperative retear rates. This study aimed to determine whether nicotinamide phosphoribosyltransferase (NAMPT) can alleviate degenerative RCT and prevent postoperative retears by reversing mitochondrial dysfunction in aged mice. METHODS We assigned 32 young (4 months) and 64 aged (19 to 20 months) male wild-type C57BL/6 mice to young, aged, and aged NAMPT-treated (ANAMPT) groups (n = 32 each). Mice in the ANAMPT group underwent subacromial injection with NAMPT-loaded fibrin gel, whereas the other 2 groups were injected with fibrin gel alone. Histological staining and each of the biomechanical and mitochondrial function tests were performed using 8 samples each. RESULTS Histological staining in the aged group revealed decreased cellularity, disrupted fiber architecture, and reduced type-I collagen content inside tendon tissues proximal to the enthesis, demonstrating the spontaneous development of age-related degenerative RCT. Compared with the young group, the maximum tendon-to-bone failure load (4.22 ± 0.81 versus 5.52 ± 0.81 N, p = 0.0106) and maximum suture cut-through force (0.83 ± 0.08 versus 1.07 ± 0.10 N, p = 0.0006) of degenerated tendon tissues in the aged group were significantly lower. Significantly reduced nicotinamide adenine dinucleotide (NAD + ) levels, adenosine triphosphate (ATP) production, and citrate synthase activity indicated that mitochondrial dysfunction was closely related to the development of the degenerative RCT. Furthermore, NAMPT-improved mitochondrial function alleviated age-induced degenerative histological changes and increased the maximum failure load (5.32 ± 0.68 N, p = 0.0375) and maximum suture cut-through force (0.99 ± 0.13 N, p = 0.0285). CONCLUSIONS Spontaneously developed degenerative RCT in aged mice mimicked the clinical situation in elderly patients. NAMPT-improved mitochondrial function could alleviate age-induced degenerative RCT and prevent postoperative suture cut-through of tendons with degenerative RCT. CLINICAL RELEVANCE This study confirmed the spontaneous development of degenerative RCT in aged mice, which will facilitate future studies of this condition. The results also suggest that NAMPT offers a novel therapeutic approach for treating age-related degenerative RCT.
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Affiliation(s)
- Yao Zhang
- Department of Orthopedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, People's Republic of China
| | - Shuai Lu
- Department of Orthopedics, Affiliated Provincial Hospital of Anhui Medical University, Hefei, People's Republic of China
| | - Gang Yu
- Department of Orthopedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, People's Republic of China
| | - Chongyang Wang
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Qichun Zhao
- Department of Orthopedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, People's Republic of China
- Department of Orthopedics, Affiliated Provincial Hospital of Anhui Medical University, Hefei, People's Republic of China
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Moon YJ, Cui B, Cho SY, Hwang JW, Chung HC, Kwon J, Kim D, Jang KY, Kim JR, Wang SI. Sirtuin 6 Overexpression Improves Rotator Cuff Tendon-to-Bone Healing in the Aged. Cells 2023; 12:2035. [PMID: 37626845 PMCID: PMC10453227 DOI: 10.3390/cells12162035] [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: 05/24/2023] [Revised: 08/08/2023] [Accepted: 08/08/2023] [Indexed: 08/27/2023] Open
Abstract
Aging is an independent risk factor for recurrent tearing after surgical repair of rotator cuff ruptures around the tendon-to-bone area. However, aging signature factors and related mechanisms involved in the healing of the rotator cuff are still unknown. We hypothesized that differences in proteins involved in the rotator cuff according to age may affect tendon-to-bone healing. The proteome analysis performed to identify the signature aging proteins of the rotator cuff confirmed the sirtuin signal as an age-specific protein. In particular, the expression of SIRT6 was markedly down-regulated with age. Ingenuity pathway analysis of omics data from age-dependent rat rotator cuffs and linear regression from human rotator cuffs showed SIRT6 to be closely related to the Wnt/β-catenin signal. We confirmed that overexpression of SIRT6 in the rotator cuff and primary tenocyte regulated canonical Wnt signaling by inhibiting the transcriptional expression of sclerostin, a Wnt antagonist. Finally, SIRT6 overexpression promoted tendon-to-bone healing after tenotomy with reconstruction in elderly rats. This approach is considered an effective treatment method for recovery from recurrent rotator cuff tears, which frequently occur in the elderly.
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Affiliation(s)
- Young Jae Moon
- Department of Biochemistry and Orthopaedic Surgery, Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonbuk National University Medical School, Jeonju 54896, Republic of Korea
| | - Baoning Cui
- Department of Orthopaedic Surgery, Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonbuk National University Medical School, Jeonju 54896, Republic of Korea; (B.C.)
| | - Se-Young Cho
- Department of Food Science and Technology, Foodborne Virus Research Center, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Jae Won Hwang
- Department of Orthopaedic Surgery, Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonbuk National University Medical School, Jeonju 54896, Republic of Korea; (B.C.)
| | - Hee-Chung Chung
- Department of BioChemical Analysis, Korea Basic Science Institute, Daejeon 30147, Republic of Korea
| | - Joseph Kwon
- Department of BioChemical Analysis, Korea Basic Science Institute, Daejeon 30147, Republic of Korea
| | - Duwoon Kim
- Department of Food Science and Technology, Foodborne Virus Research Center, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Kyu Yun Jang
- Department of Pathology, Jeonbuk National University Medical School, Jeonju 54896, Republic of Korea
| | - Jung Ryul Kim
- Department of Orthopaedic Surgery, Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonbuk National University Medical School, Jeonju 54896, Republic of Korea; (B.C.)
| | - Sung Il Wang
- Department of Orthopaedic Surgery, Research Institute of Clinical Medicine of Jeonbuk National University-Biomedical Research Institute of Jeonbuk National University Hospital, Jeonbuk National University Medical School, Jeonju 54896, Republic of Korea; (B.C.)
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Xie S, Guan C, Huang T, Yang G, Hu J, Sun D, Lu H. Activating Mitochondrial Sirtuin 3 in Chondrocytes Alleviates Aging-Induced Fibrocartilage Layer Degeneration and Promotes Healing of Degenerative Rotator Cuff Injury. THE AMERICAN JOURNAL OF PATHOLOGY 2023; 193:939-949. [PMID: 37068637 DOI: 10.1016/j.ajpath.2023.03.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 03/04/2023] [Accepted: 03/23/2023] [Indexed: 04/19/2023]
Abstract
The present study aimed to examine the impact of mitochondrial sirtuin 3 (SIRT3) on the degenerative rotator cuff injury, which is a prevalent issue among the elderly population primarily due to aging-related tissue degradation. The study hypothesized that SIRT3, as a major deacetylase in mitochondria, is a significant factor in controlling the quality of mitochondria and the deterioration of fibrocartilage, a crucial component of the rotator cuff. Results showed that the aging process led to weakened biomechanical properties and degeneration of the fibrocartilage layer in mice, accompanied by a decrease in SIRT3 expression. SIRT3 activation ameliorated the aging-related disruption of chondrocyte phenotype and fibrocartilage degradation. SIRT3 activator honokiol improved the phenotype of senescent chondrocytes and promoted rotator cuff healing in aged mice through SIRT3 activation. In conclusion, the findings suggested that the decline in SIRT3 levels with age contributes to rotator cuff degeneration and chondrocyte senescence, and that SIRT3 activation through the use of honokiol is an effective approach for promoting rotator cuff healing in the elderly population.
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Affiliation(s)
- Shanshan Xie
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, China; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, China
| | - Changbiao Guan
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, China; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, China
| | - Tingmo Huang
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, China; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, China
| | - Guang Yang
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, China; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, China
| | - Jianzhong Hu
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, China; Department of Spine Surgery, Xiangya Hospital, Central South University, Changsha, China; Hunan Engineering Research Center of Sports and Health, Changsha, China; Mobile Health Ministry of Education-China Mobile Joint Laboratory, Changsha, China
| | - Deyi Sun
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, China; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China.
| | - Hongbin Lu
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China; Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, China; Hunan Engineering Research Center of Sports and Health, Changsha, China; Xiangya Hospital-International Chinese Musculeskeletal Research Society Sports Medicine Research Centre, Changsha, China.
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Creating an Optimal In Vivo Environment to Enhance Outcomes Using Cell Therapy to Repair/Regenerate Injured Tissues of the Musculoskeletal System. Biomedicines 2022; 10:biomedicines10071570. [PMID: 35884875 PMCID: PMC9313221 DOI: 10.3390/biomedicines10071570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 06/20/2022] [Accepted: 06/27/2022] [Indexed: 11/16/2022] Open
Abstract
Following most injuries to a musculoskeletal tissue which function in unique mechanical environments, an inflammatory response occurs to facilitate endogenous repair. This is a process that usually yields functionally inferior scar tissue. In the case of such injuries occurring in adults, the injury environment no longer expresses the anabolic processes that contributed to growth and maturation. An injury can also contribute to the development of a degenerative process, such as osteoarthritis. Over the past several years, researchers have attempted to use cellular therapies to enhance the repair and regeneration of injured tissues, including Platelet-rich Plasma and mesenchymal stem/medicinal signaling cells (MSC) from a variety of tissue sources, either as free MSC or incorporated into tissue engineered constructs, to facilitate regeneration of such damaged tissues. The use of free MSC can sometimes affect pain symptoms associated with conditions such as OA, but regeneration of damaged tissues has been challenging, particularly as some of these tissues have very complex structures. Therefore, implanting MSC or engineered constructs into an inflammatory environment in an adult may compromise the potential of the cells to facilitate regeneration, and neutralizing the inflammatory environment and enhancing the anabolic environment may be required for MSC-based interventions to fulfill their potential. Thus, success may depend on first eliminating negative influences (e.g., inflammation) in an environment, and secondly, implanting optimally cultured MSC or tissue engineered constructs into an anabolic environment to achieve the best outcomes. Furthermore, such interventions should be considered early rather than later on in a disease process, at a time when sufficient endogenous cells remain to serve as a template for repair and regeneration. This review discusses how the interface between inflammation and cell-based regeneration of damaged tissues may be at odds, and outlines approaches to improve outcomes. In addition, other variables that could contribute to the success of cell therapies are discussed. Thus, there may be a need to adopt a Precision Medicine approach to optimize tissue repair and regeneration following injury to these important tissues.
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