1
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Goetz JE, Brouillette MJ, Sakyi MY, Paulsen DP, Petersen EB, Fredericks DC. A New Method for Creating Impact-Induced Intra-Articular Fractures in a Rabbit Model Induces Severe Post-Traumatic Osteoarthritis. J Orthop Trauma 2024; 38:e133-e141. [PMID: 38206679 DOI: 10.1097/bot.0000000000002757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 12/30/2023] [Indexed: 01/13/2024]
Abstract
OBJECTIVES The objective of this work was to develop a model of intra-articular fracture (IAF) in a rabbit and document the speed and severity of degenerative joint changes after fracture fixation. METHODS With Institutional Animal Care & Use Committee approval, impact-induced IAFs were created in the distal tibia of 16 New Zealand White rabbits. Fractures were fixed with a plate and screws. Pain and function were monitored at regular postoperative intervals with limb loading analysis. Twelve or 26 weeks after fracture, animals were euthanized for histological assessment of cartilage degeneration and micro-computed tomography analysis of bone histomorphometry. RESULTS Eleven animals successfully completed the study. Maximum foot force in the fractured limb was 41% ± 21% lower than preoperative values ( P = 0.006) 12 weeks after fracture and remained 25% ± 13% lower ( P = 0.081) after 26 weeks. Cortical bone mineral density in micro-computed tomography images was 34% ± 13% lower 12 weeks after fracture ( P < 0.001) and remained (42% ± 8%) lower 26 weeks after fracture ( P < 0.001). Twelve weeks after fracture, Mankin scores of cartilage degeneration were significantly higher in the medial talus ( P = 0.007), lateral talus ( P < 0.001), medial tibia ( P = 0.017), and lateral tibia ( P = 0.002) of the fractured limb compared with the uninjured contralateral limb. Average Mankin scores in the talus increased from 12 to 26 weeks (5.9 ± 0.9 to 9.4 ± 0.4; P < 0.001 lateral; 5.4 ± 1.8 to 7.8 ± 2.0; P = 0.043 medial), indicating substantial and progressive joint degeneration. CONCLUSIONS The ankle joint of the New Zealand White rabbit provides the smallest available model of impact-induced IAF that can be treated with clinically relevant techniques and replicates key features of healing and degeneration found in human patients.
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Affiliation(s)
- Jessica E Goetz
- Department of Orthopedics and Rehabilitation, University of Iowa, Iowa City, IA; and
- Department of Biomedical Engineering, University of Iowa, Iowa City, IA
| | - Marc J Brouillette
- Department of Orthopedics and Rehabilitation, University of Iowa, Iowa City, IA; and
| | - Maxwell Y Sakyi
- Department of Orthopedics and Rehabilitation, University of Iowa, Iowa City, IA; and
| | - Danielle P Paulsen
- Department of Orthopedics and Rehabilitation, University of Iowa, Iowa City, IA; and
| | - Emily B Petersen
- Department of Orthopedics and Rehabilitation, University of Iowa, Iowa City, IA; and
| | - Douglas C Fredericks
- Department of Orthopedics and Rehabilitation, University of Iowa, Iowa City, IA; and
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2
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Iijima H, Zhang F, Ambrosio F, Matsui Y. Network-based cytokine inference implicates Oncostatin M as a driver of an inflammation phenotype in knee osteoarthritis. Aging Cell 2024; 23:e14043. [PMID: 38111237 PMCID: PMC10861212 DOI: 10.1111/acel.14043] [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: 06/20/2023] [Revised: 10/28/2023] [Accepted: 11/01/2023] [Indexed: 12/20/2023] Open
Abstract
Inflammatory cytokines released by synovium after trauma disturb the gene regulatory network and have been implicated in the pathophysiology of osteoarthritis. A mechanistic understanding of how aging perturbs this process can help identify novel interventions. Here, we introduced network paradigms to simulate cytokine-mediated pathological communication between the synovium and cartilage. Cartilage-specific network analysis of injured young and aged murine knees revealed aberrant matrix remodeling as a transcriptomic response unique to aged knees displaying accelerated cartilage degradation. Next, network-based cytokine inference with pharmacological manipulation uncovered IL6 family member, Oncostatin M (OSM), as a driver of the aberrant matrix remodeling. By implementing a phenotypic drug discovery approach, we identified that the activation of OSM recapitulated an "inflammatory" phenotype of knee osteoarthritis and highlighted high-value targets for drug development and repurposing. These findings offer translational opportunities targeting the inflammation-driven osteoarthritis phenotype.
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Affiliation(s)
- Hirotaka Iijima
- Discovery Center for Musculoskeletal RecoverySchoen Adams Research Institute at SpauldingCharlestownMassachusettsUSA
- Department of Physical Medicine & RehabilitationHarvard Medical SchoolBostonMassachusettsUSA
- Department of Physical Medicine & RehabilitationSpaulding Rehabilitation HospitalCharlestownMassachusettsUSA
- Institute for Advanced ResearchNagoya UniversityNagoyaJapan
- Biomedical and Health Informatics Unit, Graduate School of MedicineNagoya UniversityNagoyaJapan
| | - Fan Zhang
- Department of Medicine Division of RheumatologyUniversity of Colorado School of MedicineAuroraColoradoUSA
- Department of Biomedical Informatics Center for Health AIUniversity of Colorado School of MedicineAuroraColoradoUSA
| | - Fabrisia Ambrosio
- Discovery Center for Musculoskeletal RecoverySchoen Adams Research Institute at SpauldingCharlestownMassachusettsUSA
- Department of Physical Medicine & RehabilitationHarvard Medical SchoolBostonMassachusettsUSA
- Department of Physical Medicine & RehabilitationSpaulding Rehabilitation HospitalCharlestownMassachusettsUSA
| | - Yusuke Matsui
- Biomedical and Health Informatics Unit, Graduate School of MedicineNagoya UniversityNagoyaJapan
- Institute for Glyco‐core Research, Tokai National Higher Education and Research SystemNagoya UniversityNagoyaJapan
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3
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Li H, Cao Y, Chang C, Huang W, Su S, Peng Z, Zhang J. Knockdown of circSOD2 ameliorates osteoarthritis progression via the miR-224-5p/PRDX3 axis. J Orthop Surg Res 2023; 18:432. [PMID: 37312219 DOI: 10.1186/s13018-023-03880-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Accepted: 05/24/2023] [Indexed: 06/15/2023] Open
Abstract
BACKGROUND Although the implications of circular RNAs (circRNAs) with the progression of diverse pathological conditions have been reported, the circRNA players in osteoarthritis (OA) are barely studied. METHODS In this study, twenty-five OA patients who received arthroplasty were recruited for cartilage tissue collection. Public circRNA microarray data from Gene Expression Omnibus was retrieved for circRNA identification. An in vitro cell model of OA-related damages was constructed by treating human chondrocytes (CHON-001 cell line) with IL-1β, and circSOD2 siRNA was used to silence circSOD2 expression to study its functional role in apoptosis, inflammatory responses, and extracellular matrix (ECM) degradation. Besides, we investigated the functional interactions among circSOD2, miR-224-5p, and peroxiredoxin 3 (PRDX3) by luciferase reporter assay, RNA-immunoprecipitation assay, and quantitative reverse transcription polymerase chain reaction. RESULTS Our findings revealed the overexpression of circSOD2 in the OA cartilage and cell samples, and circSOD2 knockdown alleviated ECM degradation, inflammation, and apoptosis in CHON-001 cell model. In addition, our findings suggested the regulatory function of circSOD2 knockdown on miR-224-5p expression, while miR-224-5p was capable of downregulating PRDX3 expression. The co-transfection of miR-224-5p inhibitor or pcDNA-PRDX3 could prevent the effect of circSOD2 knockdown. CONCLUSION Hence, our results demonstrated that knockdown of circSOD2 may serve as an intervention strategy to alleviate OA progression through modulating miR-224-5p/PRDX3 signaling axis.
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Affiliation(s)
- Hao Li
- Department of Sports Medicine, Shenzhen Second People's Hospital, Shenzhen, 518037, Guangdong, China
| | - Yong Cao
- Department of Orthopaedic Emergency, Chongqing Orthopedic Hospital of Traditional Chinese Medicine, Chongqing, 400000, China
| | - Chongfei Chang
- Shenzhen Cheerland Danlun Biomedical Co. Ltd, Shenzhen, 518108, Guangdong, China
| | - Wenping Huang
- Department of Traumatic Orthopedics, Chongqing Orthopedic Hospital of Traditional Chinese Medicine, 9 Jiefang West Road, Yuzhong District, Chongqing, 400000, China
| | - Songchuan Su
- Department of Traumatic Orthopedics, Chongqing Orthopedic Hospital of Traditional Chinese Medicine, 9 Jiefang West Road, Yuzhong District, Chongqing, 400000, China
| | - Zhenggang Peng
- Department of Traumatic Orthopedics, Chongqing Orthopedic Hospital of Traditional Chinese Medicine, 9 Jiefang West Road, Yuzhong District, Chongqing, 400000, China
| | - Jiajin Zhang
- Department of Traumatic Orthopedics, Chongqing Orthopedic Hospital of Traditional Chinese Medicine, 9 Jiefang West Road, Yuzhong District, Chongqing, 400000, China.
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4
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Yang L, Martin JA, Brouillette MJ, Buckwalter JA, Goetz JE. Objective evaluation of chondrocyte density & cloning after joint injury using convolutional neural networks. J Orthop Res 2022; 40:2609-2619. [PMID: 35171527 PMCID: PMC9378771 DOI: 10.1002/jor.25295] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 12/01/2021] [Accepted: 02/02/2022] [Indexed: 02/04/2023]
Abstract
Variations in chondrocyte density and organization in cartilage histology sections are associated with osteoarthritis progression. Rapid, accurate quantification of these two features can facilitate the evaluation of cartilage health and advance the understanding of their significance. The goal of this work was to adapt deep-learning-based methods to detect articular chondrocytes and chondrocyte clones from safranin-O-stained cartilage to evaluate chondrocyte cellularity and organization. The U-net and "you-only-look-once" (YOLO) models were trained and validated for identifying chondrocytes and chondrocyte clones, respectively. Validated models were then used to quantify chondrocyte and clone density in talar cartilage from Yucatan minipigs sacrificed 1 week, 3, 6, and 12 months after fixation of an intra-articular fracture of the hock joint. There was excellent/good agreement between expert researchers and the developed models in identifying chondrocytes/clones (U-net: R2 = 0.93, y = 0.90x-0.69; median F1 score: 0.87/YOLO: R2 = 0.79, y = 0.95x; median F1 score: 0.67). Average chondrocyte density increased 1 week after fracture (from 774 to 856 cells/mm2 ), decreased substantially 3 months after fracture (610 cells/mm2 ), and slowly increased 6 and 12 months after fracture (638 and 683 cells/mm2 , respectively). Average detected clone density 3, 6, and 12 months after fracture (11, 11, 9 clones/mm2 ) was higher than the 4-5 clones/mm2 detected in normal tissue or 1 week after fracture and show local increases in clone density that varied across the joint surface with time. The accurate evaluation of cartilage cellularity and organization provided by this deep learning approach will increase objectivity of cartilage injury and regeneration assessments.
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Affiliation(s)
- Linjun Yang
- Department of Orthopedics and RehabilitationUniversity of IowaIowa CityIowaUSA,Department of Biomedical EngineeringUniversity of IowaIowa CityIowaUSA
| | - James A. Martin
- Department of Orthopedics and RehabilitationUniversity of IowaIowa CityIowaUSA,Department of Biomedical EngineeringUniversity of IowaIowa CityIowaUSA
| | - Marc J. Brouillette
- Department of Orthopedics and RehabilitationUniversity of IowaIowa CityIowaUSA
| | | | - Jessica E. Goetz
- Department of Orthopedics and RehabilitationUniversity of IowaIowa CityIowaUSA,Department of Biomedical EngineeringUniversity of IowaIowa CityIowaUSA
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5
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Liu X, Zhao J, Jiang H, Guo H, Li Y, Li H, Feng Y, Ke J, Long X. ALPK1 Accelerates the Pathogenesis of Osteoarthritis by Activating NLRP3 Signaling. J Bone Miner Res 2022; 37:1973-1985. [PMID: 36053817 DOI: 10.1002/jbmr.4669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 07/14/2022] [Accepted: 07/31/2022] [Indexed: 11/08/2022]
Abstract
Alpha-kinase 1 (ALPK1), a member of the alpha-kinase family, has been shown to be involved in mediating inflammatory responses and is strongly associated with gout; however, its modulatory role in osteoarthritis (OA) remains unclear. Here, we uncovered elevation of ALPK1 in degraded cartilage of destabilized medial meniscus (DMM) and collagenase-induced osteoarthritis (CIOA), two different mouse OA models induced by mechanical stress or synovitis. Intraarticular administration of recombinant human ALPK1 (rhALPK1) in vivo exacerbated OA pathogenesis in both DMM and CIOA mice, whereas ALPK1 knockout reversed this process. In vitro study demonstrated that ALPK1 aggravates metabolic disturbances in chondrocytes by enhancing the production of NOD-like receptor protein 3 (NLRP3), an inflammasome sensors driving interlukin-1β (IL-1β)-mediated inflammatory conditions. Furthermore, the selective inhibition of nuclear factor-κB (NF-κB) or NLRP3 indicates that NLRP3 is a downstream signaling governed by NF-κB in ALPK1-activated chondrocytes. Collectively, these results establish ALPK1 as a novel catabolic regulator of OA pathogenesis, and targeting this signaling may be a promising treatment strategy for OA. © 2022 American Society for Bone and Mineral Research (ASBMR).
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Affiliation(s)
- Xin Liu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Jie Zhao
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Henghua Jiang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Huilin Guo
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Yingjie Li
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Huimin Li
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Yaping Feng
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Jin Ke
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China.,Department of Oral and Maxillofacial Surgery, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Xing Long
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China.,Department of Oral and Maxillofacial Surgery, School & Hospital of Stomatology, Wuhan University, Wuhan, China
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6
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Konnaris MA, Brendel M, Fontana MA, Otero M, Ivashkiv LB, Wang F, Bell RD. Computational pathology for musculoskeletal conditions using machine learning: advances, trends, and challenges. Arthritis Res Ther 2022; 24:68. [PMID: 35277196 PMCID: PMC8915507 DOI: 10.1186/s13075-021-02716-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 12/29/2021] [Indexed: 11/21/2022] Open
Abstract
Histopathology is widely used to analyze clinical biopsy specimens and tissues from pre-clinical models of a variety of musculoskeletal conditions. Histological assessment relies on scoring systems that require expertise, time, and resources, which can lead to an analysis bottleneck. Recent advancements in digital imaging and image processing provide an opportunity to automate histological analyses by implementing advanced statistical models such as machine learning and deep learning, which would greatly benefit the musculoskeletal field. This review provides a high-level overview of machine learning applications, a general pipeline of tissue collection to model selection, and highlights the development of image analysis methods, including some machine learning applications, to solve musculoskeletal problems. We discuss the optimization steps for tissue processing, sectioning, staining, and imaging that are critical for the successful generalizability of an automated image analysis model. We also commenting on the considerations that should be taken into account during model selection and the considerable advances in the field of computer vision outside of histopathology, which can be leveraged for image analysis. Finally, we provide a historic perspective of the previously used histopathological image analysis applications for musculoskeletal diseases, and we contrast it with the advantages of implementing state-of-the-art computational pathology approaches. While some deep learning approaches have been used, there is a significant opportunity to expand the use of such approaches to solve musculoskeletal problems.
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Affiliation(s)
- Maxwell A Konnaris
- Research Institute, Hospital for Special Surgery, New York, USA.,Orthopedic Soft Tissue Research Program, Hospital for Special Surgery, New York, USA
| | - Matthew Brendel
- Department of Population Health Sciences, Weill Cornell Medical College, New York, USA.,Institute for Computational Biomedicine, Department of Physiology and Biophysics, Weill Cornell Medicine, New York, NY, USA
| | - Mark Alan Fontana
- Department of Population Health Sciences, Weill Cornell Medical College, New York, USA.,Center for Analytics, Modeling, & Performance, Hospital for Special Surgery, New York, USA
| | - Miguel Otero
- Research Institute, Hospital for Special Surgery, New York, USA.,Orthopedic Soft Tissue Research Program, Hospital for Special Surgery, New York, USA
| | - Lionel B Ivashkiv
- Research Institute, Hospital for Special Surgery, New York, USA.,Arthritis and Tissue Degeneration Program, Hospital for Special Surgery, New York, USA.,Rosenweig Genomics Center, Hospital for Special Surgery, New York, USA
| | - Fei Wang
- Department of Population Health Sciences, Weill Cornell Medical College, New York, USA
| | - Richard D Bell
- Research Institute, Hospital for Special Surgery, New York, USA. .,Center for Analytics, Modeling, & Performance, Hospital for Special Surgery, New York, USA. .,Rosenweig Genomics Center, Hospital for Special Surgery, New York, USA.
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7
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Kamaraj A, Kyriacou H, Seah KTM, Khan WS. Use of human induced pluripotent stem cells for cartilage regeneration in vitro and within chondral defect models of knee joint cartilage in vivo: a Preferred Reporting Items for Systematic Reviews and Meta-Analyses systematic literature review. Cytotherapy 2021; 23:647-661. [PMID: 34059422 DOI: 10.1016/j.jcyt.2021.03.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 03/16/2021] [Accepted: 03/27/2021] [Indexed: 12/16/2022]
Abstract
BACKGROUND AIMS Articular cartilage has limited regenerative ability when damaged through trauma or disease. Failure to treat focal chondral lesions results in changes that inevitably progress to osteoarthritis. Osteoarthritis is a major contributor to disability globally, which results in significant medical costs and lost wages every year. Human induced pluripotent stem cells (hiPSCs) have long been considered a potential autologous therapeutic option for the treatment of focal chondral lesions. Although there are significant advantages to hiPSCs over other stem cell options, such as mesenchymal and embryonic stem cells, there are concerns regarding their ability to form bona fide cartilage and their tumorgenicity in vivo. METHODS The authors carried out a systematic literature review on the use of hiPSCs to produce differentiated progeny capable of producing high-quality cartilage in vitro and regenerate cartilage in osteochondral defects in vivo in accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Eight studies were included in the review that used hiPSCs or their derived progeny in xenogeneic transplants in animal models to regenerate cartilage in osteochondral defects of the knee joint. The in vitro-differentiated, hiPSC-derived and in vivo defect repair ability of the hiPSC-derived progeny transplants were assessed. RESULTS Most studies reported the generation of high-quality cartilage-producing progeny that were able to successfully repair cartilage defects in vivo. No tumorigenicity was observed. CONCLUSIONS The authors conclude that hiPSCs offer a valuable source of cartilage-producing progeny that show promise as an effective cell-based therapy in treating focal chondral lesions.
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Affiliation(s)
- Achi Kamaraj
- Division of Trauma and Orthopedic Surgery, Addenbrooke's Hospital, University of Cambridge, Cambridge, UK
| | - Harry Kyriacou
- Division of Trauma and Orthopedic Surgery, Addenbrooke's Hospital, University of Cambridge, Cambridge, UK
| | - K T Matthew Seah
- Division of Trauma and Orthopedic Surgery, Addenbrooke's Hospital, University of Cambridge, Cambridge, UK.
| | - Wasim S Khan
- Division of Trauma and Orthopedic Surgery, Addenbrooke's Hospital, University of Cambridge, Cambridge, UK
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8
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Zhang L, Sui C, Zhang Y, Wang G, Yin Z. Knockdown of hsa_circ_0134111 alleviates the symptom of osteoarthritis via sponging microRNA-224-5p. Cell Cycle 2021; 20:1052-1066. [PMID: 33945396 DOI: 10.1080/15384101.2021.1919838] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
The relevance of circular RNAs (circRNAs) has been indicated in the progression of various diseases. Nevertheless, the precise function of circRNAs in osteoarthritis (OA) remains to be established. Therefore, we aimed to investigate changes in the expression of a specific circRNA, hsa_circ_0134111 (circ_PDE1C) and predict its functions in OA. A rat model of OA was constructed to detect circ_PDE1C expression in knee joint tissues. Subsequently, CHON-001 chondrocytes were treated with IL-1β to mimic OA in vitro. circ_PDE1C was significantly overexpressed in knee cartilage tissues from OA patients relative to amputation patients. Knockdown of circ_PDE1C inhibited extracellular matrix (ECM) degradation and chondrocyte apoptosis. Furthermore, circ_PDE1C could target miR-224-5p, and miR-224-5p expressed poorly in knee cartilage tissues from OA patients. Overexpression of miR-224-5p inhibited ECM degradation and apoptosis in chondrocytes. miR-224-5p also targeted CCL2, which activated the JAK2/STAT signaling pathway, thereby promoting cartilage degradation and exacerbating the symptoms of OA patients. In conclusion, our findings underscore a novel role of circ_PDE1C in OA pathogenesis and suggest that targeting circ_PDE1C/miR-224-5p/CCL2 axis might provide an attractive approach for OA therapy.
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Affiliation(s)
- Lecheng Zhang
- Department of Orthopedics, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, P.R. China
| | - Cong Sui
- Department of Orthopedics, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, P.R. China
| | - Yuelei Zhang
- Department of Orthopedics, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, P.R. China
| | - Gang Wang
- Department of Orthopedics, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, P.R. China
| | - Zongsheng Yin
- Department of Orthopedics, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, P.R. China
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9
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Matsumoto T, Sato Y, Kobayashi T, Ito E, Soma T, Kimura A, Miyamoto K, Kobayashi S, Harato K, Matsumoto M, Nakamura M, Niki Y, Miyamoto T. Synoviolin is not a pathogenic factor for auto-inflammatory diseases. Biochem Biophys Res Commun 2021; 558:183-188. [PMID: 33932778 DOI: 10.1016/j.bbrc.2021.04.093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 04/21/2021] [Indexed: 11/25/2022]
Abstract
Auto-inflammatory syndromes are rare diseases characterized by arthritis and joint destruction, symptoms similar to but distinct from rheumatoid arthritis (RA). Therapeutic targets have not been well characterized for auto-inflammatory syndromes, although the E3 ligase Synoviolin was previously shown to be a novel therapeutic target for RA. Here, we show that Synoviolin loss has little impact on a model of auto-inflammatory diseases. We previously established such a model, the hIL-1 cTg mouse, in which IL-1 signaling was constitutively activated, and animals exhibit symptoms recapitulating auto-inflammatory syndromes such as major joint dominant arthritis. Here, we crossed hIL-1 cTg with Synoviolin flox'd mice to yield hIL-1 cTg/Synoviolin cKO mice. Synoviolin gene expression was ablated in adult hIL-1 cTg/Synoviolin cKO mice by injection of pIpC to activate Mx1 promoter-driven Cre recombinase. However, symptoms seen in hIL-1 cTg mice such as arthritis and joint destruction were not alleviated by targeting Synoviolin, ruling out Synoviolin as a therapeutic target for auto-inflammatory disease. Our results indicate that although similar, RA and auto-inflammatory diseases are different diseases, and treatment strategies should differ accordingly.
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Affiliation(s)
| | - Yuiko Sato
- Department of Orthopedic Surgery, Japan; Department of Advanced Therapy for Musculoskeletal Disorders II, Japan; Department of Musculoskeletal Reconstruction and Regeneration Surgery, Japan
| | - Tami Kobayashi
- Department of Orthopedic Surgery, Japan; Department of Advanced Therapy for Musculoskeletal Disorders II, Japan; Department of Musculoskeletal Reconstruction and Regeneration Surgery, Japan
| | - Eri Ito
- Institute for Integrated Sports Medicine, Japan
| | - Tomoya Soma
- Division of Oral and Maxillofacial Surgery, Department of Dentistry and Oral Surgery, Keio University School of Medicine, 35 Shinano-machi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | | | - Kana Miyamoto
- Department of Orthopedic Surgery, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto, 860-8556, Japan
| | | | | | | | | | - Yasuo Niki
- Department of Orthopedic Surgery, Japan.
| | - Takeshi Miyamoto
- Department of Orthopedic Surgery, Japan; Department of Advanced Therapy for Musculoskeletal Disorders II, Japan; Department of Musculoskeletal Reconstruction and Regeneration Surgery, Japan; Department of Orthopedic Surgery, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto, 860-8556, Japan.
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10
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Gomez-Contreras PC, Kluz PN, Hines MR, Coleman MC. Intersections Between Mitochondrial Metabolism and Redox Biology Mediate Posttraumatic Osteoarthritis. Curr Rheumatol Rep 2021; 23:32. [PMID: 33893892 DOI: 10.1007/s11926-021-00994-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/23/2021] [Indexed: 12/30/2022]
Abstract
PURPOSE OF REVIEW This review will cover foundational studies and recent findings that established key concepts for understanding the importance of redox biology to chondrocyte mitochondrial function and osteoarthritis pathophysiology after injury. RECENT FINDINGS Articular chondrocyte mitochondria can be protected with a wide variety of antioxidants that will be discussed within a framework suggested by classic studies. These agents not only underscore the importance of thiol metabolism and associated redox function for chondrocyte mitochondria but also suggest complex interactions with signal transduction pathways and other molecular features of osteoarthritis that require more thorough investigation. Emerging evidence also indicates that reductive stress could occur alongside oxidative stress. Recent studies have shed new light on historic paradoxes in chondrocyte redox and mitochondrial physiology, leading to the development of promising disease-modifying therapies for posttraumatic osteoarthritis.
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Affiliation(s)
| | - Paige N Kluz
- University of Iowa, 1182 Biomedical Laboratories, 500 Newton Road, Iowa City, 52242, USA
| | - Madeline R Hines
- University of Iowa, 1182 Biomedical Laboratories, 500 Newton Road, Iowa City, 52242, USA
| | - Mitchell C Coleman
- University of Iowa, 1182 Biomedical Laboratories, 500 Newton Road, Iowa City, 52242, USA.
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11
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Jiang C, Luo P, Li X, Liu P, Li Y, Xu J. Nrf2/ARE is a key pathway for curcumin-mediated protection of TMJ chondrocytes from oxidative stress and inflammation. Cell Stress Chaperones 2020; 25:395-406. [PMID: 32124251 PMCID: PMC7192998 DOI: 10.1007/s12192-020-01079-z] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 01/16/2020] [Accepted: 01/29/2020] [Indexed: 12/12/2022] Open
Abstract
Temporomandibular joint osteoarthritis (TMJ OA) is a complex multifactorial disease that can be induced by inflammation and oxidative stress. Curcumin has been reported to have anti-inflammatory and antioxidant properties. Herein, the anti-inflammatory and antioxidant mechanisms of curcumin in TMJ OA were investigated. Curcumin treatment inhibited the expression of the inflammation mediators IL-6, iNOS, and COX-2 and of the matrix-degrading proteinases MMP-1, MMP-3, MMP-9, MMP-13, ADAMTS-4, and ADAMTS-5 and upregulated the mRNA levels of the cartilage anabolic factors COL2A1 and ACAN after IL-1β treatment. Curcumin treatment also decreased oxidative stress injury following IL-1β stimulation. Pathway analysis demonstrated that the ROS/Nrf2/HO-1-SOD2-NQO-1-GCLC signaling axis is a key axis through which curcumin activates the Nrf2/ARE pathway in TMJ inflammatory chondrocytes. Curcumin-induced anti-inflammatory and cartilage protective effects were significantly abrogated by specific Nrf2 siRNA. In vivo results demonstrated that curcumin treatment protected TMJ articular cartilage from progressive degradation. Our experimental results indicate that curcumin inhibits inflammation, oxidative stress, and the matrix degradation of TMJ inflammatory chondrocytes through the Nrf2/ARE signaling pathway, thereby exerting cartilage protective effects. This study provides insight into potential therapeutic approaches for TMJ OA.
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Affiliation(s)
- Chao Jiang
- College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory for Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Ping Luo
- College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory for Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Xian Li
- College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory for Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Ping Liu
- College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory for Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Yong Li
- College of Stomatology, Chongqing Medical University, Chongqing, China.
- Chongqing Key Laboratory for Oral Diseases and Biomedical Sciences, Chongqing, China.
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China.
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Stomatology, Chongqing Medical University, No. 426, North Songshi Road, Yubei District, Chongqing, 401147, China.
| | - Jie Xu
- College of Stomatology, Chongqing Medical University, Chongqing, China.
- Chongqing Key Laboratory for Oral Diseases and Biomedical Sciences, Chongqing, China.
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China.
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Stomatology, Chongqing Medical University, No. 426, North Songshi Road, Yubei District, Chongqing, 401147, China.
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12
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Song BW, Park JH, Kim B, Lee S, Lim S, Kim SW, Choi JW, Lee J, Kang M, Hwang KC, Chae DS, Kim IK. A Combinational Therapy of Articular Cartilage Defects: Rapid and Effective Regeneration by Using Low-Intensity Focused Ultrasound After Adipose Tissue-Derived Stem Cell Transplantation. Tissue Eng Regen Med 2020; 17:313-322. [PMID: 32274698 DOI: 10.1007/s13770-020-00256-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Revised: 03/02/2020] [Accepted: 03/03/2020] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND Although low-intensity pulsed ultrasound has been reported to be potential cartilage regeneration, there still unresolved treatment due to cartilage fibrosis and degeneration by a lack of rapid and high-efficiency treatment. The purpose of this study was to investigate the effect of a combination therapy of focused acoustic force and stem cells at site for fast and efficient healing on cartilage regeneration. METHODS Using a rat articular cartilage defects model, one million adipose tissue-derived stem cells (ASCs) were injected into the defect site, and low-intensity focused ultrasound (LOFUS) in the range of 100-600 mV was used for 20 min/day for 2 weeks. All experimental groups were sacrificed after 4 weeks in total. The gross appearance score and hematoxylin and eosin (H&E), Alcian blue, and Safranin O staining were used for measuring the chondrogenic potential. The cartilage characteristics were observed, and type II collagen, Sox 9, aggrecan, and type X collagen were stained with immunofluorescence. The results of the comprehensive analysis were calculated using the Mankin scoring method. RESULTS The gross appearance scores of regenerated cartilage and chondrocyte-like cells in H&E images were higher in LOFUS-treated groups compared to those in negative control or ASC-treated groups. Safranin O and Alcian blue staining demonstrated that the 100 and 300 mV LOFUS groups showed greater synthesis of glycosaminoglycan and proteoglycan. The ASC + LOFUS 300 mV group showed positive regulation of type II collagen, Sox 9 and aggrecan and negative regulation of type X collagen, which indicated the occurrence of cartilage regeneration based on the Mankin score result. CONCLUSION The combination therapy, which involved treatment with ASC and 300 mV LOFUS, quickly and effectively reduced articular cartilage defects.
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Affiliation(s)
- Byeong-Wook Song
- Department of Medical Sciences, College of Medicine, Catholic Kwandong University, 24, Beomil-ro 579beon-gil, Gangneung-si, Gangwon-do, 25601, Republic of Korea
| | - Jun-Hee Park
- International St. Mary's Hospital, Catholic Kwandong University, 25, Simgok-ro 100beon-gil, Seo-gu, Incheon, 22711, Republic of Korea
| | - Bomi Kim
- International St. Mary's Hospital, Catholic Kwandong University, 25, Simgok-ro 100beon-gil, Seo-gu, Incheon, 22711, Republic of Korea
| | - Seahyoung Lee
- International St. Mary's Hospital, Catholic Kwandong University, 25, Simgok-ro 100beon-gil, Seo-gu, Incheon, 22711, Republic of Korea.,Institute for Biomedical Convergence, College of Medicine, Catholic Kwandong University, 24, Beomil-ro 579beon-gil, Gangneung-si, Gangwon-do, 25601, Republic of Korea
| | - Soyeon Lim
- International St. Mary's Hospital, Catholic Kwandong University, 25, Simgok-ro 100beon-gil, Seo-gu, Incheon, 22711, Republic of Korea.,Institute for Biomedical Convergence, College of Medicine, Catholic Kwandong University, 24, Beomil-ro 579beon-gil, Gangneung-si, Gangwon-do, 25601, Republic of Korea
| | - Sang Woo Kim
- International St. Mary's Hospital, Catholic Kwandong University, 25, Simgok-ro 100beon-gil, Seo-gu, Incheon, 22711, Republic of Korea.,Institute for Biomedical Convergence, College of Medicine, Catholic Kwandong University, 24, Beomil-ro 579beon-gil, Gangneung-si, Gangwon-do, 25601, Republic of Korea
| | - Jung-Won Choi
- Institute for Biomedical Convergence, College of Medicine, Catholic Kwandong University, 24, Beomil-ro 579beon-gil, Gangneung-si, Gangwon-do, 25601, Republic of Korea
| | - Jiyun Lee
- Institute for Biomedical Convergence, College of Medicine, Catholic Kwandong University, 24, Beomil-ro 579beon-gil, Gangneung-si, Gangwon-do, 25601, Republic of Korea
| | - Misun Kang
- Institute for Biomedical Convergence, College of Medicine, Catholic Kwandong University, 24, Beomil-ro 579beon-gil, Gangneung-si, Gangwon-do, 25601, Republic of Korea
| | - Ki-Chul Hwang
- International St. Mary's Hospital, Catholic Kwandong University, 25, Simgok-ro 100beon-gil, Seo-gu, Incheon, 22711, Republic of Korea.,Institute for Biomedical Convergence, College of Medicine, Catholic Kwandong University, 24, Beomil-ro 579beon-gil, Gangneung-si, Gangwon-do, 25601, Republic of Korea
| | - Dong-Sik Chae
- Department of Orthopedic Surgery, International St. Mary's Hospital, College of Medicine, Catholic Kwandong University, 25, Simgok-ro 100beon-gil, Seo-gu, Incheon, 22711, Republic of Korea.
| | - Il-Kwon Kim
- International St. Mary's Hospital, Catholic Kwandong University, 25, Simgok-ro 100beon-gil, Seo-gu, Incheon, 22711, Republic of Korea. .,Institute for Biomedical Convergence, College of Medicine, Catholic Kwandong University, 24, Beomil-ro 579beon-gil, Gangneung-si, Gangwon-do, 25601, Republic of Korea.
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13
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Cui C, Zheng L, Fan Y, Zhang J, Xu R, Xie J, Zhou X. Parathyroid hormone ameliorates temporomandibular joint osteoarthritic-like changes related to age. Cell Prolif 2020; 53:e12755. [PMID: 32154622 PMCID: PMC7162802 DOI: 10.1111/cpr.12755] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 12/16/2019] [Accepted: 12/17/2019] [Indexed: 02/05/2023] Open
Abstract
OBJECTIVES Ageing could be a contributing factor to the progression of temporomandibular joint osteoarthritis (TMJ OA), whereas its pathogenesis and potential therapeutic strategy have not been comprehensively investigated. MATERIALS AND METHODS We generated ageing mouse models (45-week and 60-week; 12-week mice as control) and intermittently injected 45-week mice with parathyroid hormone (PTH(1-34)) or vehicle for 4 weeks. Cartilage and subchondral bone of TMJ were analysed by microCT, histological and immunostaining. Western blot, qRT-PCR, ChIP, ELISA and immunohistochemical analysis were utilized to examination the mechanism of PTH(1-34)'s function. RESULTS We showed apparent OA-like phenotypes in ageing mice. PTH treatment could ameliorate the degenerative changes and improve bone microarchitecture in the subchondral bone by activating bone remodelling. Moreover, PTH inhibited phosphorylation level of Smad3, which can combine with p16ink4a gene promoter region, resulting in reduced senescent cells accumulation and increased cellular proliferation of marrow mesenchymal stem cells (MSCs). ELISA also showed relieved levels of specific senescent-associated secretory phenotype (SASP) in ageing mice after PTH treatment. CONCLUSIONS In summary, PTH may reduce the accumulation of senescent cells in subchondral bone by inhibiting p16ink4a and improve bone marrow microenvironment to active bone remodelling process, indicating PTH administration could be a potential preventative and therapeutic treatment for age-related TMJ OA.
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Affiliation(s)
- Chen Cui
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Sichuan, China
| | - Liwei Zheng
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Sichuan, China
| | - Yi Fan
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Sichuan, China
| | - Jun Zhang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Sichuan, China.,School of Stomatology, Kunming Medical University, Kunming, China
| | - Ruoshi Xu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Sichuan, China
| | - Jing Xie
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Sichuan, China
| | - Xuedong Zhou
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Sichuan, China
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14
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To K, Zhang B, Romain K, Mak C, Khan W. Synovium-Derived Mesenchymal Stem Cell Transplantation in Cartilage Regeneration: A PRISMA Review of in vivo Studies. Front Bioeng Biotechnol 2019; 7:314. [PMID: 31803726 PMCID: PMC6873960 DOI: 10.3389/fbioe.2019.00314] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2019] [Accepted: 10/23/2019] [Indexed: 12/17/2022] Open
Abstract
Articular cartilage damaged through trauma or disease has a limited ability to repair. Untreated, focal lesions progress to generalized changes including osteoarthritis. Musculoskeletal disorders including osteoarthritis are the most significant contributor to disability globally. There is increasing interest in the use of mesenchymal stem cells (MSCs) for the treatment of focal chondral lesions. There is some evidence to suggest that the tissue type from which MSCs are harvested play a role in determining their ability to regenerate cartilage in vitro and in vivo. In humans, MSCs derived from synovial tissue may have superior chondrogenic potential. We carried out a systematic literature review on the effectiveness of synovium-derived MSCs (sMSCs) in cartilage regeneration in in vivo studies in accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) protocol. Twenty studies were included in our review; four examined the use of human sMSCs and 16 were conducted using sMSCs harvested from animals. Most studies reported successful cartilage repair with sMSC transplantation despite the variability of animals, cell harvesting techniques, methods of delivery, and outcome measures. We conclude that sMSC transplantation holds promise as a treatment option for focal cartilage defects. We believe that defining the cell population being used, establishing standardized methods for MSC delivery, and the use of objective outcome measures should enable future high quality studies such as randomized controlled clinical trials to provide the evidence needed to manage chondral lesions optimally.
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Affiliation(s)
- Kendrick To
- Division of Trauma and Orthopaedics, Department of Surgery, Addenbrooke's Hospital, University of Cambridge, Cambridge, United Kingdom
| | - Bridget Zhang
- School of Clinical Medicine, University of Cambridge, Cambridge, United Kingdom
| | - Karl Romain
- School of Clinical Medicine, University of Cambridge, Cambridge, United Kingdom
| | - Christopher Mak
- School of Clinical Medicine, University of Cambridge, Cambridge, United Kingdom
| | - Wasim Khan
- Division of Trauma and Orthopaedics, Department of Surgery, Addenbrooke's Hospital, University of Cambridge, Cambridge, United Kingdom
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15
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Coleman MC, Goetz JE, Brouillette MJ, Seol D, Willey MC, Petersen EB, Anderson HD, Hendrickson NR, Compton J, Khorsand B, Morris AS, Salem AK, Fredericks DC, McKinley TO, Martin JA. Targeting mitochondrial responses to intra-articular fracture to prevent posttraumatic osteoarthritis. Sci Transl Med 2019; 10:10/427/eaan5372. [PMID: 29437147 DOI: 10.1126/scitranslmed.aan5372] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Revised: 09/19/2017] [Accepted: 01/05/2018] [Indexed: 12/16/2022]
Abstract
We tested whether inhibiting mechanically responsive articular chondrocyte mitochondria after severe traumatic injury and preventing oxidative damage represent a viable paradigm for posttraumatic osteoarthritis (PTOA) prevention. We used a porcine hock intra-articular fracture (IAF) model well suited to human-like surgical techniques and with excellent anatomic similarities to human ankles. After IAF, amobarbital or N-acetylcysteine (NAC) was injected to inhibit chondrocyte electron transport or downstream oxidative stress, respectively. Effects were confirmed via spectrophotometric enzyme assays or glutathione/glutathione disulfide assays and immunohistochemical measures of oxidative stress. Amobarbital or NAC delivered after IAF provided substantial protection against PTOA at 6 months, including maintenance of proteoglycan content, decreased histological disease scores, and normalized chondrocyte metabolic function. These data support the therapeutic potential of targeting chondrocyte metabolism after injury and suggest a strong role for mitochondria in mediating PTOA.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | - Todd O McKinley
- Indiana University Health Methodist Hospital Orthopaedic Trauma Service, Indianapolis, IN 46202, USA
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16
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Yang L, Coleman MC, Hines MR, Kluz PN, Brouillette MJ, Goetz JE. Deep Learning for Chondrocyte Identification in Automated Histological Analysis of Articular Cartilage. THE IOWA ORTHOPAEDIC JOURNAL 2019; 39:1-8. [PMID: 32577101 PMCID: PMC7047299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
BACKGROUND Histology-based methods are commonly used in osteoarthritis (OA) research because they provide detailed information about cartilage health at the cellular and tissue level. Computer-based cartilage scoring systems have previously been developed using standard image analysis techniques to give more objective and reliable evaluations of OA severity. The goal of this work was to develop a deep learning-based method to segment chondrocytes from histological images of cartilage and validate the resulting method via comparison with human segmentation. METHODS The U-Net approach was adapted for the task of chondrocyte segmentation. A training dataset consisting of 235 images and a validation set consisting of 25 images in which individual chondrocytes had been manually segmented, were used for training the U-Net. Chondrocyte count, detection accuracy, and boundary segmentation of the trained U-Net was evaluated by comparing its results with those of human observers. RESULTS The U-Net chondrocyte counts were not significantly different (p = 0.361 in a paired t-test) than the algorithm trainer counts (Pearson correlation coefficient = 0.92). The five expert observers had good agreement on chondrocyte counts (intraclass correlation coefficient = 0.868), however the resulting U-Net counted a significantly fewer chondrocytes than the average of those expert observers (p < 0.001 in a paired t-test). Chondrocytes were accurately detected by the U-Net (F1 scores = 0.86, 0.90, with respect to the selected expert observer and algorithm trainer). Segmentation accuracy was also high (IOU = 0.828) relative to the algorithm trainer. CONCLUSIONS This work developed a method for chondrocyte segmentation from histological images of arthritic cartilage using a deep learning approach. The resulting method detected chondrocytes and delineated them with high accuracy. The method will continue to be improved through expansion to detect more complex cellular features representative of OA such as cell cloning. CLINICAL RELEVANCE The imaging tool developed in this work can be integrated into an automated cartilage health scoring system and helps provide a robust, objective and reliable assessment of OA severity in cartilage.
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Affiliation(s)
- Linjun Yang
- Department of Orthopedics and Rehabilitation, University of Iowa, Iowa City, IA, USA
- Department of Biomedical Engineering, University of Iowa, Iowa City, IA, USA
| | - Mitchell C. Coleman
- Department of Orthopedics and Rehabilitation, University of Iowa, Iowa City, IA, USA
- Department of Radiation Oncology, University of Iowa, Iowa City, IA, USA
| | - Madeline R. Hines
- Department of Orthopedics and Rehabilitation, University of Iowa, Iowa City, IA, USA
- Department of Radiation Oncology, University of Iowa, Iowa City, IA, USA
| | - Paige N. Kluz
- Department of Orthopedics and Rehabilitation, University of Iowa, Iowa City, IA, USA
| | - Marc J. Brouillette
- Department of Orthopedics and Rehabilitation, University of Iowa, Iowa City, IA, USA
| | - Jessica E. Goetz
- Department of Orthopedics and Rehabilitation, University of Iowa, Iowa City, IA, USA
- Department of Biomedical Engineering, University of Iowa, Iowa City, IA, USA
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17
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IL-6, IL-17 and Stat3 are required for auto-inflammatory syndrome development in mouse. Sci Rep 2018; 8:15783. [PMID: 30361689 PMCID: PMC6202393 DOI: 10.1038/s41598-018-34173-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 10/12/2018] [Indexed: 12/18/2022] Open
Abstract
Auto-inflammatory syndrome, a condition clinically distinct from rheumatoid arthritis, is characterized by systemic inflammation in tissues such as major joints, skin, and internal organs. Autonomous innate-immune activation is thought to promote this inflammation, but underlying pathological mechanisms have not been clarified nor are treatment strategies established. Here, we newly established a mouse model in which IL-1 signaling is conditionally activated in adult mice (hIL-1 cTg) and observed phenotypes similar to those seen in auto-inflammatory syndrome patients. In serum of hIL-1 cTg mice, IL-6 and IL-17 levels significantly increased, and signal transducer and activator of transcription 3 (Stat3) was activated in joints. When we crossed hIL-1 cTg with either IL-6- or IL-17-deficient mice or with Stat3 conditional knockout mice, phenotypes seen in hIL-1 cTg mice were significantly ameliorated. Thus, IL-6, IL-17 and Stat3 all represent potential therapeutic targets for this syndrome.
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18
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Aberrant activation of latent transforming growth factor-β initiates the onset of temporomandibular joint osteoarthritis. Bone Res 2018; 6:26. [PMID: 30210898 PMCID: PMC6131160 DOI: 10.1038/s41413-018-0027-6] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Revised: 07/02/2018] [Accepted: 07/03/2018] [Indexed: 02/05/2023] Open
Abstract
There is currently no effective medical treatment for temporomandibular joint osteoarthritis (TMJ-OA) due to a limited understanding of its pathogenesis. This study was undertaken to investigate the key role of transforming growth factor-β (TGF-β) signalling in the cartilage and subchondral bone of the TMJ using a temporomandibular joint disorder (TMD) rat model, an ageing mouse model and a Camurati–Engelmann disease (CED) mouse model. In the three animal models, the subchondral bone phenotypes in the mandibular condyles were evaluated by µCT, and changes in TMJ condyles were examined by TRAP staining and immunohistochemical analysis of Osterix and p-Smad2/3. Condyle degradation was confirmed by Safranin O staining, the Mankin and OARSI scoring systems and type X collagen (Col X), p-Smad2/3a and Osterix immunohistochemical analyses. We found apparent histological phenotypes of TMJ-OA in the TMD, ageing and CED animal models, with abnormal activation of TGF-β signalling in the condylar cartilage and subchondral bone. Moreover, inhibition of TGF-β receptor I attenuated TMJ-OA progression in the TMD models. Therefore, aberrant activation of TGF-β signalling could be a key player in TMJ-OA development. Blocking the activity of a critical growth factor could help treat degenerative disease of the jaw joint, according to experiments in three rodent models. Xuedong Zhou from Sichuan University in Chengdu, China, examined the cartilage and adjoining layer of bone found at the ends of the jawbone in a rat model of temporomandibular joint disorder and in two related mouse models. In all three, the researchers observed tissue abnormalities consistent with what’s seen in humans with osteoarthritis of the jaw joint, a condition with no effective therapeutic options. They showed that transforming growth factor-β, a master regulatory protein, displayed aberrant signalling patterns in these tissues and that blocking this protein’s receptor with a drug attenuated the disease process. The findings help explain what drives jaw joint osteoarthritis — and point to a strategy for treating it.
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19
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Mantripragada VP, Piuzzi NS, Zachos T, Obuchowski NA, Muschler GF, Midura RJ. Histopathological assessment of primary osteoarthritic knees in large patient cohort reveal the possibility of several potential patterns of osteoarthritis initiation. Curr Res Transl Med 2017; 65:133-139. [PMID: 29132902 PMCID: PMC5731834 DOI: 10.1016/j.retram.2017.09.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Revised: 09/25/2017] [Accepted: 09/26/2017] [Indexed: 12/13/2022]
Abstract
OBJECTIVE The two main objectives of the study include (1) Test the hypothesis that the lateral femoral condyle (LFC) in patients with primary OA and varus knees undergoing total knee arthroplasty (TKA) can be used as a model to better characterize varying histological features of human OA, (2) Correlate characteristic OA features using the established histopathological scoring systems (HHGS and OARSI) to understand potential histopathological patterns of OA initiation. DESIGN Two osteochondral specimens (4×4×8mm) were collected from fifty patient's LFC at the time of TKA (total 100 specimens), who presented preserved lateral knee compartment with joint space width>2mm. Three independent readers graded the sections on three different occasions using HHGS and OARSI systems. The correlation between individual parameters of the two scoring systems and their inter- and intra-reader variability, reliability and reproducibility were estimated. RESULTS All samples in this cohort showed abnormal histopathological features. Total histopathological scores of the LFC ranged from HHGS median=4.6 (range=0 to 11), and OARSI median=5.2 (range=0 to 19.5). The four individual sub-items of HHGS scoring system (structure, cells, safraninO staining, tidemark) were weakly correlated, with the correlation between structure and cellularity being the strongest (r=0.40). Both the scoring systems had similar repeatability and reproducibility coefficients of<21%. CONCLUSIONS OA changes in the LFC are not confined to any one region, and maybe seen in different regions of cartilage, tidemark, subchondral bone, and/or the marrow space vascularity. These variations may point to the possibility of several potential patterns of initiation in OA.
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Affiliation(s)
- V P Mantripragada
- Department of biomedical engineering, Lerner research institute, Cleveland clinic, 9500 Euclid avenue, OH 44195 Cleveland, USA.
| | - N S Piuzzi
- Department of biomedical engineering, Lerner research institute, Cleveland clinic, 9500 Euclid avenue, OH 44195 Cleveland, USA; Department of orthopedic surgery, Cleveland clinic, OH 44195 Cleveland, USA; Instituto Universitario del Hospital Italiano de Buenos Aires, Potosí 4234, C1199ACL Caba, Argentina
| | - T Zachos
- Department of orthopedic surgery, Cleveland clinic, OH 44195 Cleveland, USA
| | - N A Obuchowski
- Department of quantitative health science, Cleveland clinic, OH 44195 Cleveland, USA
| | - G F Muschler
- Department of biomedical engineering, Lerner research institute, Cleveland clinic, 9500 Euclid avenue, OH 44195 Cleveland, USA; Department of orthopedic surgery, Cleveland clinic, OH 44195 Cleveland, USA
| | - R J Midura
- Department of biomedical engineering, Lerner research institute, Cleveland clinic, 9500 Euclid avenue, OH 44195 Cleveland, USA
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20
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Wu CS, Cheng HY, Hsu PF, Kao YH, Kuo SM. Evaluation of the Therapeutic Effects of Hyaluronic Acid Injections on Football Players’ Articular Cartilage Using an Immunochromatographic Urine Strip. J Med Biol Eng 2017. [DOI: 10.1007/s40846-017-0221-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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21
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Goetz JE, Coleman MC, Fredericks DC, Petersen E, Martin JA, McKinley TO, Tochigi Y. Time-dependent loss of mitochondrial function precedes progressive histologic cartilage degeneration in a rabbit meniscal destabilization model. J Orthop Res 2017; 35:590-599. [PMID: 27279147 PMCID: PMC5148713 DOI: 10.1002/jor.23327] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Accepted: 06/06/2016] [Indexed: 02/04/2023]
Abstract
The goals of this work were to characterize progression of osteoarthritic cartilage degeneration in a rabbit medial meniscus destabilization (MMD) model and then to use the model to identify pre-histologic disruptions in chondrocyte metabolism under chronically elevated joint contact stresses in vivo. To characterize PTOA progression, 24 rabbits received either MMD or sham surgery. Limb loading was analyzed preoperatively and at regular postoperative intervals using a Tekscan pressure-sensitive walkway. Animals were euthanized 8 (n = 8 MMD; n = 8 sham) or 26 weeks (n = 8 MMD) postoperatively for histological cartilage evaluation by an objective, semi-automated Mankin scoring routine. To examine pre-histologic pathology, MMD was performed on an additional 20 rabbits, euthanized 1 (n = 9) or 4 weeks (n = 10) postoperatively. Chondrocytes were harvested fresh for measurement of mitochondrial function, an intracellular indicator of pathology after mechanical injury. Both MMD and sham surgery caused slight decreases in limb loading which returned to preoperative levels after 2 weeks. Histologically apparent cartilage damage progressed from 8 to 26 weeks after MMD. Changes in chondrocyte respiration were variable at 1 week, but by 4 weeks postoperatively chondrocyte mitochondrial function was significantly reduced. Many human injuries that lead to PTOA are relatively mild, and the cell-level mechanisms leading to disease remain unclear. We have documented PTOA progression in an animal model of subtle joint injury under continued use, and demonstrated that this model provides a realistic environment for investigation of multi-stage cellular pathology that develops prior to overt tissue degeneration and which could be targeted for disease modifying treatments. © 2017 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 35:590-599, 2017.
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Affiliation(s)
- Jessica E. Goetz
- Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa City, IA, USA,Department of Biomedical Engineering, University of Iowa, Iowa City, IA, USA
| | - Mitchell C. Coleman
- Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa City, IA, USA
| | - Douglas C. Fredericks
- Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa City, IA, USA
| | - Emily Petersen
- Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa City, IA, USA
| | - James A. Martin
- Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa City, IA, USA,Department of Biomedical Engineering, University of Iowa, Iowa City, IA, USA
| | - Todd O. McKinley
- Department of Orthopaedics, Indiana University Methodist Hospital, Indianapolis, IN, USA
| | - Yuki Tochigi
- Department of Orthopaedics, Dokkyo Medical University Koshigaya Hospital, Koshigaya, Saitama, Japan
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22
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Goetz JE, Fredericks D, Petersen E, Rudert MJ, Baer T, Swanson E, Roberts N, Martin J, Tochigi Y. A clinically realistic large animal model of intra-articular fracture that progresses to post-traumatic osteoarthritis. Osteoarthritis Cartilage 2015; 23:1797-805. [PMID: 26033166 DOI: 10.1016/j.joca.2015.05.022] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2014] [Revised: 04/28/2015] [Accepted: 05/21/2015] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Translation of promising treatments for post-traumatic osteoarthritis (PTOA) to patients with intra-articular fracture (IAF) has been limited by the lack of a realistic large animal model. To address this issue we developed a large animal model of IAF in the distal tibia of Yucatan minipigs and documented the natural progression of this injury. DESIGN Twenty-two fractures were treated using open reduction and internal fixation with either an anatomic reduction or an intentional 2-mm step-off. Pre-operatively, and 3 days, 1, 2, 4, 8, and 12 weeks post-operatively, animals were sedated for synovial fluid draws and radiographs. Limb loading was monitored at the same time points using a Tekscan Walkway. Animals were sacrificed at 12 weeks and the limbs were harvested for histological evaluation. RESULTS All animals achieved bony union by 12 weeks, facilitating nearly complete recovery of the initial 60% decrease in limb loading. TNFα, IL1β, IL6, and IL8 concentrations in the fractured limbs were elevated (P < 0.05) at specific times during the 2 weeks after fracture. Histological cartilage degeneration was more severe in the step-off group (0.0001 < P < 0.27 compared to normal) than in the anatomic reconstruction group (0.27 < P < 0.99 compared to normal). CONCLUSIONS This model replicated key features of a human IAF, including surgical stabilization, inflammatory responses, and progression to osteoarthritic cartilage degeneration, thereby providing a potentially useful model for translating promising treatment options to clinical practice.
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Affiliation(s)
- J E Goetz
- Department of Orthopaedics & Rehabilitation, University of Iowa, Iowa City, IA, USA; Department of Biomedical Engineering, University of Iowa, Iowa City, IA, USA.
| | - D Fredericks
- Department of Orthopaedics & Rehabilitation, University of Iowa, Iowa City, IA, USA
| | - E Petersen
- Department of Orthopaedics & Rehabilitation, University of Iowa, Iowa City, IA, USA
| | - M J Rudert
- Department of Orthopaedics & Rehabilitation, University of Iowa, Iowa City, IA, USA
| | - T Baer
- Department of Orthopaedics & Rehabilitation, University of Iowa, Iowa City, IA, USA
| | - E Swanson
- Department of Bioengineering, University of Washington, Seattle, WA, USA
| | - N Roberts
- Department of Orthopaedics & Rehabilitation, University of Iowa, Iowa City, IA, USA
| | - J Martin
- Department of Orthopaedics & Rehabilitation, University of Iowa, Iowa City, IA, USA; Department of Biomedical Engineering, University of Iowa, Iowa City, IA, USA
| | - Y Tochigi
- Department of Orthopaedics, Dokkyo Medical University Koshigaya Hospital, Saitama, Japan
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23
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Aydin O, Korkusuz F, Korkusuz P, Tezcaner A, Bilgic E, Yaprakci V, Keskin D. In vitro and in vivo evaluation of doxycycline-chondroitin sulfate/PCLmicrospheres for intraarticular treatment of osteoarthritis. J Biomed Mater Res B Appl Biomater 2014; 103:1238-48. [PMID: 25350566 DOI: 10.1002/jbm.b.33303] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2014] [Revised: 09/05/2014] [Accepted: 10/02/2014] [Indexed: 11/10/2022]
Abstract
Osteoarthritis (OA) is a degenerative joint disease, which has no complete treatment with medication yet. Intraarticular hyaluronan (HA) injection can decrease pain and modify the natural course of OA. This study was designed to provide long term delivery of an MMP (matrix-metalloproteinase) inhibitor agent-doxycycline, together with matrix regenerative agent-chondroitin sulfate for treating OA which progress with matrix degenerations. Doxycycline (D) and doxycycline-chondroitin sulfate (D-CS) loaded poly-ɛ-caprolactone (PCL) microspheres (MS) were prepared as intraarticular delivery systems. Bio-effectiveness of developed microspheres was first evaluated with three-dimensional in vitro model of OA where both MS showed significant reduction in MMP-13 levels compared to untreated OA-chondrocytes at 15 and 24 days. Significant decrease was observed in GAG release into the media for both D MS and D-CS MS treated groups at 15 and 24 days. Second, the microspheres were injected to rabbit knee in hyaluronan (HA) to evaluate the effectiveness of the treatment. Radiographic scores of D MS and D-CS MS groups improved after 8 weeks when compared to OA group. Mankin-Pitzker histological scores similarly showed improvement with D MS and D-CSMS groups when compared to OA group. Ex vivo hardness tests of cartilages demonstrated superior hardness values with both doses of D-CSMS compared to OA group. D MS showed promising improvement of OA in histology results. Although, both MS groups had similar effects on cells in the in vitro model, D-CSMS had a positive contribution on all in vivo treatment outcomes and showed potential as a new strategy for treatment when applied to OA knee joints.
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Affiliation(s)
- Ozlem Aydin
- Department of Engineering Sciences, Middle East Technical University, 06800, Ankara, Turkey
| | - Feza Korkusuz
- Department of Sports Medicine, Hacettepe University, Faculty of Medicine, 06100, Ankara, Turkey
| | - Petek Korkusuz
- Department of Histology and Embryology, Hacettepe University, Faculty of Medicine, 06100, Ankara, Turkey
| | - Aysen Tezcaner
- Department of Engineering Sciences, Middle East Technical University, 06800, Ankara, Turkey.,BIOMATEN, Center of Excellence in Biomaterials and Tissue Engineering, Middle East Technical University, Ankara, 06800, Turkey
| | - Elif Bilgic
- Department of Histology and Embryology, Hacettepe University, Faculty of Medicine, 06100, Ankara, Turkey
| | - Volkan Yaprakci
- Department of Surgery, Faculty of Veterinary Medicine, Afyon Kocatepe University, 03200, Afyon, Turkey
| | - Dilek Keskin
- Department of Engineering Sciences, Middle East Technical University, 06800, Ankara, Turkey.,BIOMATEN, Center of Excellence in Biomaterials and Tissue Engineering, Middle East Technical University, Ankara, 06800, Turkey
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24
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Fang H, Beier F. Mouse models of osteoarthritis: modelling risk factors and assessing outcomes. Nat Rev Rheumatol 2014; 10:413-21. [PMID: 24662645 DOI: 10.1038/nrrheum.2014.46] [Citation(s) in RCA: 137] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Osteoarthritis (OA) is a prevalent musculoskeletal disease that results in pain and low quality of life for patients, as well as enormous medical and socioeconomic burdens. The molecular mechanisms responsible for the initiation and progression of OA are still poorly understood. As such, mouse models of the disease are having increasingly important roles in OA research owing to the advancements of microsurgical techniques and the use of genetically modified mice, as well as the development of novel assessment tools. In this Review, we discuss available mouse models of OA and applicable assessment tools in studies of experimental OA.
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Affiliation(s)
- Hang Fang
- Department of Orthopaedics, The Third Affiliated Hospital of Sun Yat-Sen University, 600 Tianhe Road, Guangzhou, 510630, People's Republic of China
| | - Frank Beier
- Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, Western University, 1151 Richmond Street, London, ON N6A 5C1, Canada
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25
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Arunakul M, Tochigi Y, Goetz JE, Diestelmeier BW, Heiner AD, Rudert MJ, Fredericks DC, Brown TD, McKinley TO. Replication of chronic abnormal cartilage loading by medial meniscus destabilization for modeling osteoarthritis in the rabbit knee in vivo. J Orthop Res 2013; 31:1555-60. [PMID: 23843150 PMCID: PMC5113956 DOI: 10.1002/jor.22393] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2012] [Accepted: 04/29/2013] [Indexed: 02/04/2023]
Abstract
Medial meniscus destabilization (MMD) is a surgical insult technique for modeling osteoarthritis (OA) by replicating chronic abnormal cartilage loading in animal joints in vivo. The present study aimed to characterize the immediate biomechanical effects (ex vivo) and short-term histological consequences (in vivo) of MMD in the rabbit knee. In a compressive loading test, contact stress distribution in the medial compartment was measured in eight cadaver rabbit knees, initially with all major joint structures uninjured (Baseline), after MMD, and finally after total medial meniscectomy (TMM). Similarly, the effects on sagittal joint stability were determined in an anterior-posterior drawer test. These biomechanical (ex vivo) data indicated that both MMD and TMM caused significant (p < 0.001), distinct (>1.5-fold) elevation of peak local contact stress in the medial compartment, while leaving whole-joint stability nearly unchanged. Histological consequences in vivo were assessed in a short-term (8-week) survival series of MMD or TMM (five animals for each group), and both caused moderate cartilage degeneration in the medial compartment. The MMD insult, which is feasible through posterior arthrotomy alone, is as effective as TMM for modeling injurious-level chronic abnormal cartilage loading in the rabbit knee medial compartment in vivo, while minimizing potential confounding effects from whole-joint instability.
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Affiliation(s)
- Marut Arunakul
- Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa City, Iowa, USA, Department of Orthopaedic Surgery, Thammasat University, Pathumthani, Thailand
| | - Yuki Tochigi
- Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa City, Iowa, USA
| | - Jessica E. Goetz
- Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa City, Iowa, USA, Department of Biomedical Engineering, University of Iowa, Iowa City, Iowa, USA
| | - Bryce W. Diestelmeier
- Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa City, Iowa, USA, Department of Biomedical Engineering, University of Iowa, Iowa City, Iowa, USA
| | - Anneliese D. Heiner
- Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa City, Iowa, USA, Department of Biomedical Engineering, University of Iowa, Iowa City, Iowa, USA
| | - M. James Rudert
- Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa City, Iowa, USA
| | - Douglas C. Fredericks
- Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa City, Iowa, USA
| | - Thomas D. Brown
- Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa City, Iowa, USA, Department of Biomedical Engineering, University of Iowa, Iowa City, Iowa, USA
| | - Todd O. McKinley
- Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa City, Iowa, USA
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26
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Thote T, Lin ASP, Raji Y, Moran S, Stevens HY, Hart M, Kamath RV, Guldberg RE, Willett NJ. Localized 3D analysis of cartilage composition and morphology in small animal models of joint degeneration. Osteoarthritis Cartilage 2013; 21:1132-41. [PMID: 23747340 DOI: 10.1016/j.joca.2013.05.018] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2012] [Revised: 04/16/2013] [Accepted: 05/27/2013] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Current histological scoring methods to evaluate efficacy of potential therapeutics for slowing or preventing joint degeneration are time-consuming and semi-quantitative in nature. Hence, there is a need to develop and standardize quantitative outcome measures to define sensitive metrics for studying potential therapeutics. The objectives of this study were to use equilibrium partitioning of an ionic contrast agent via Equilibrium Partitioning of an Ionic Contrast-Microcomputed tomography (EPIC-μCT) to quantitatively characterize morphological and compositional changes in the tibial articular cartilage in two distinct models of joint degeneration and define localized regions of interest to detect degenerative cartilage changes. MATERIALS AND METHODS The monosodium iodoacetate (MIA) and medial meniscal transection (MMT) rat models were used in this study. Three weeks post-surgery, tibiae were analyzed using EPIC-μCT and histology. EPIC-μCT allowed measurement of 3D morphological changes in cartilage thickness, volume and composition. RESULTS Extensive cartilage degeneration was observed throughout the joint in the MIA model after 3 weeks. In contrast, the MMT model showed more localized degeneration with regional thickening of the medial tibial plateau and a decrease in attenuation consistent with proteoglycan (PG) depletion. Focal lesions were also observed and 3D volume calculated as an additional outcome metric. CONCLUSIONS EPIC-μCT was used to quantitatively assess joint degeneration in two distinct preclinical models. The MMT model showed similar features to human Osteoarthritis (OA), including localized lesion formation and PG loss, while the MIA model displayed extensive cartilage degeneration throughout the joint. EPIC-μCT imaging provides a rapid and quantitative screening tool for preclinical evaluation of OA therapeutics.
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Affiliation(s)
- T Thote
- Wallace H. Coulter Department of Biomedical Engineering, Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, USA.
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27
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Pedersen DR, Goetz JE, Kurriger GL, Martin JA. Comparative digital cartilage histology for human and common osteoarthritis models. Orthop Res Rev 2013; 2013:13-20. [PMID: 24465137 DOI: 10.2147/orr.s38400] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
PURPOSE This study addresses the species-specific and site-specific details of weight-bearing articular cartilage zone depths and chondrocyte distributions among humans and common osteoarthritis (OA) animal models using contemporary digital imaging tools. Histological analysis is the gold-standard research tool for evaluating cartilage health, OA severity, and treatment efficacy. Historically, evaluations were made by expert analysts. However, state-of-the-art tools have been developed that allow for digitization of entire histological sections for computer-aided analysis. Large volumes of common digital cartilage metrics directly complement elucidation of trends in OA inducement and concomitant potential treatments. MATERIALS AND METHODS Sixteen fresh human knees, 26 adult New Zealand rabbit stifles, and 104 bovine lateral plateaus were measured for four cartilage zones and the cell densities within each zone. Each knee was divided into four weight-bearing sites: the medial and lateral plateaus and femoral condyles. RESULTS One-way analysis of variance followed by pairwise multiple comparisons (Holm-Sidak method at a significance of 0.05) clearly confirmed the variability between cartilage depths at each site, between sites in the same species, and between weight-bearing articular cartilage definitions in different species. CONCLUSION The present study clearly demonstrates multisite, multispecies differences in normal weight-bearing articular cartilage, which can be objectively quantified by a common digital histology imaging technique. The clear site-specific differences in normal cartilage must be taken into consideration when characterizing the pathoetiology of OA models. Together, these provide a path to consistently analyze the volume and variety of histologic slides necessarily generated by studies of OA progression and potential treatments in different species.
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Affiliation(s)
- Douglas R Pedersen
- Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa City, IA, USA
| | - Jessica E Goetz
- Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa City, IA, USA
| | - Gail L Kurriger
- Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa City, IA, USA
| | - James A Martin
- Department of Orthopaedics and Rehabilitation, University of Iowa, Iowa City, IA, USA
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28
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Pauli C, Whiteside R, Heras FL, Nesic D, Koziol1 J, Grogan S, Matyas J, Pritzker K, D’Lima D, Lotz M. Comparison of cartilage histopathology assessment systems on human knee joints at all stages of osteoarthritis development. Osteoarthritis Cartilage 2012; 20:476-85. [PMID: 22353747 PMCID: PMC3348372 DOI: 10.1016/j.joca.2011.12.018] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2011] [Revised: 11/28/2011] [Accepted: 12/06/2011] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To compare the MANKIN and OARSI cartilage histopathology assessment systems using human articular cartilage from a large number of donors across the adult age spectrum representing all levels of cartilage degradation. DESIGN Human knees (n=125 from 65 donors; age range 23-92) were obtained from tissue banks. All cartilage surfaces were macroscopically graded. Osteochondral slabs representing the entire central regions of both femoral condyles, tibial plateaus, and the patella were processed for histology and Safranin O - Fast Green staining. Slides representing normal, aged, and osteoarthritis (OA) tissue were scanned and electronic images were scored online by five observers. Statistical analysis was performed for inter- and intra-observer variability, reproducibility and reliability. RESULTS The inter-observer variability among five observers for the MANKIN system showed a similar good Intra-class correlation coefficient (ICC>0.81) as for the OARSI system (ICC>0.78). Repeat scoring by three of the five readers showed very good agreement (ICC>0.94). Both systems showed a high reproducibility among four of the five readers as indicated by the Spearman's rho value. For the MANKIN system, the surface represented by lesion depth was the parameter where all readers showed an excellent agreement. Other parameters such as cellularity, Safranin O staining intensity and tidemark had greater inter-reader disagreement. CONCLUSION Both scoring systems were reliable but appeared too complex and time consuming for assessment of lesion severity, the major parameter determined in standardized scoring systems. To rapidly and reproducibly assess severity of cartilage degradation, we propose to develop a simplified system for lesion volume.
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Affiliation(s)
- C. Pauli
- Department of Molecular and Experimental Medicine, The Scripps Research Institute, La Jolla, California, USA,Shiley Center for Orthopaedic and Education at Scripps Clinic, La Jolla, California, USA
| | | | - F. Las Heras
- Department of Pathology, University of Chile, Clinical Hospital, Santiago, Chile
| | - D. Nesic
- Osteoarticular Research Group, Department of Clinical Research, University of Bern, Bern, Switzerland
| | - J. Koziol1
- Department of Molecular and Experimental Medicine, The Scripps Research Institute, La Jolla, California, USA
| | - S.P. Grogan
- Department of Molecular and Experimental Medicine, The Scripps Research Institute, La Jolla, California, USA,Shiley Center for Orthopaedic and Education at Scripps Clinic, La Jolla, California, USA
| | - J. Matyas
- McCaig Institute for Bone and Joint Health, Department of Comparative Biology & Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Canada
| | - K.P.H. Pritzker
- Pathology and Laboratory Medicine, Mount Sinai Hospital, University of Toronto, Canada
| | - D.D. D’Lima
- Department of Molecular and Experimental Medicine, The Scripps Research Institute, La Jolla, California, USA,Shiley Center for Orthopaedic and Education at Scripps Clinic, La Jolla, California, USA
| | - M.K. Lotz
- Department of Molecular and Experimental Medicine, The Scripps Research Institute, La Jolla, California, USA,Address correspondence and reprint requests to: Department of Molecular and Experimental Medicine, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, CA 92037, U.S.A. Tel: 858-784-8960 Fax: 858-784-2744
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29
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Orth P, Zurakowski D, Wincheringer D, Madry H. Reliability, reproducibility, and validation of five major histological scoring systems for experimental articular cartilage repair in the rabbit model. Tissue Eng Part C Methods 2011; 18:329-39. [PMID: 22081995 DOI: 10.1089/ten.tec.2011.0462] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Histological evaluation of the repair tissue is a main pillar in the advancing field of experimental articular cartilage repair. Despite their widespread use, the major histological scoring systems for cartilage repair have seldom been validated. We tested the hypotheses (1) that elementary scores have a better reproducibility compared with more complex systems and (2) that the data from these different histological scores correlate with the DNA and proteoglycan contents of the repair tissue. A total of 1,165 observations of cartilage repair based on histological sections (n=233) from an experimental investigation on the repair of standardized osteochondral defects in vivo were made by three investigators with different levels of experience in cartilage research to determine the inter- and intra-observer reproducibility of elementary (Pineda and Wakitani score) and complex (O'Driscoll, Sellers, Fortier score) histological grading systems. DNA and proteoglycan contents of the repair tissues from simultaneously created defects were determined and correlated with histological (a) overall score values, (b) matrix staining, and (c) cellular characteristics of the five scores. Finally, applying the proteoglycan content as validating test, sensitivity, and specificity of the grading systems were assessed. All histological scores provided high intra- (Pearson r=0.92-0.99) and inter-observer reliability (intra-class correlation=0.94-0.99), low numerical intra- and inter-observer differences, and high internal correlations (Spearman's ρ=0.63-0.91). No disparity in reliability and reproducibility was detected between elementary and complex scores or between investigators with different levels of experience (all p>0.05). Individual histological overall score values did not correlate with proteoglycan contents but with DNA contents of the repair tissue (O'Driscoll, Wakitani, Sellers score). In all systems, proteoglycan contents did not correlate with matrix staining (all p>0.05), but histological cellular characteristics correlated with total cell numbers (p<0.001). These data indicate that both elementary and comprehensive histological scores are suited to quantify cartilage repair. Histological and biochemical evaluations may serve as complementary tools to assess articular cartilage repair in vivo.
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Affiliation(s)
- Patrick Orth
- Experimental Orthopaedics and Osteoarthritis Research, Saarland University, Homburg/Saar, Germany
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30
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McNulty MA, Loeser RF, Davey C, Callahan MF, Ferguson CM, Carlson CS. A Comprehensive Histological Assessment of Osteoarthritis Lesions in Mice. Cartilage 2011; 2:354-63. [PMID: 26069594 PMCID: PMC4297143 DOI: 10.1177/1947603511402665] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVE Accurate histological assessment of osteoarthritis (OA) is critical in studies evaluating the effects of interventions on disease severity. The purpose of the present study was to develop a histological grading scheme that comprehensively and quantitatively assesses changes in multiple tissues that are associated with OA of the stifle joint in mice. DESIGN Two representative midcoronal sections from 158 stifle joints, including naturally occurring and surgically induced OA, were stained with H&E and Safranin-O stains. All slides were evaluated to characterize the changes present. A grading scheme that includes both measurements and semiquantitative scores was developed, and principal components analysis (PCA) was applied to the resulting data from the medial tibial plateaus. A subset of 30 tibial plateaus representing a wide range of severity was then evaluated by 4 observers. Reliability of the results was evaluated using intraclass correlation coefficients (ICCs) and area under the receiver operating characteristic (ROC) curve. RESULTS Five factors were retained by PCA, accounting for 74% of the total variance. Interobserver and intraobserver reproducibilities for evaluations of articular cartilage and subchondral bone were acceptable. The articular cartilage integrity and chondrocyte viability factor scores were able to distinguish severe OA from normal, minimal, mild, and moderate disease. CONCLUSION This newly developed grading scheme and resulting factors characterize a range of joint changes in mouse stifle joints that are associated with OA. Overall, the newly developed scheme is reliable and reproducible, characterizes changes in multiple tissues, and provides comprehensive information regarding a specific site in the stifle joint.
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Affiliation(s)
- Margaret A. McNulty
- Department of Veterinary Population Medicine, University of Minnesota College of Veterinary Medicine, St. Paul, MN, USA
| | - Richard F. Loeser
- Department of Internal Medicine, Wake Forest University School of Medicine, Winston-Salem, NC, USA
| | - Cynthia Davey
- Biostatistical Design & Analysis Center, University of Minnesota, Minneapolis, MN, USA
| | - Michael F. Callahan
- Department of Orthopaedic Surgery, Wake Forest University School of Medicine, Winston-Salem, NC, USA
| | - Cristin M. Ferguson
- Department of Orthopaedic Surgery, Wake Forest University School of Medicine, Winston-Salem, NC, USA
| | - Cathy S. Carlson
- Department of Veterinary Population Medicine, University of Minnesota College of Veterinary Medicine, St. Paul, MN, USA,Cathy S. Carlson, Department of Veterinary Population Medicine, University of Minnesota College of Veterinary Medicine, 1988 Fitch Avenue, 435H AnSci/VM, St. Paul, MN 55108
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31
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Pedersen DR, Klocke NF, Thedens DR, Martin JA, Williams GN, Amendola A. Integrating carthage-specific T1rho MRI into knee clinic diagnostic imaging. THE IOWA ORTHOPAEDIC JOURNAL 2011; 31:99-109. [PMID: 22096428 PMCID: PMC3215122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
With a rise in post-traumatic osteoarthritis, OA no longer is considered just a disease of aging. The 'gold standard' for OA diagnosis has long been planar radiographs for visualizing osteophytes, joint space narrowing and sclerotic changes. A typical magnetic resonance imaging (MRI) protocol will acquire proton density, T1, T2, and fat suppressed images that give a comprehensive picture of morphologic changes associated with injury and subsequent degenerative processes. However, the earliest events of cartilage degeneration occur within the tissue, before measureable changes in morphology. MRI methods have been proposed to display and quantify changes in composition and integrity of such elements of cartilage extracellular matrix as collagen and proteoglycan (PG) content in vivo. T1ρ the spin-lattice relaxation time in the rotating frame, has come to the forefront for visualizing water proton-PG interactions in articular cartilage. The purpose of this T1ρ MRI study was to define an objective femoral condyle-specific registration method, in which zone-dependent cartilage compositional changes could be assessed from the bone outward through the existing cartilage, at pre-ACL reconstruction and subsequent follow-up times, when the loss of thickness to surface-down cartilage erosion might occur later in the OA pathogenesis. Additionally, this study explores the effects of reducing the number of spin-lock times on the absolute T1ρ relaxation times; a major parameter in expanding T1ρ coverage to the whole joint while satisfying clinical imaging time and specific absorption rate (SAR) safety constraints. The developed image analysis tools serve as the first step toward quantitative functional assessment of cartilage health with noninvasive T1ρ MRI, which has the potential to become an important new tool for the early diagnosis of cartilage degeneration following ACL trauma.
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Affiliation(s)
- Douglas R Pedersen
- Department of Orthopaedics & Rehabilitation, University of Iowa, Iowa City, USA.
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32
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Adkisson HD, Martin JA, Amendola RL, Milliman C, Mauch KA, Katwal AB, Seyedin M, Amendola A, Streeter PR, Buckwalter JA. The potential of human allogeneic juvenile chondrocytes for restoration of articular cartilage. Am J Sports Med 2010; 38:1324-33. [PMID: 20423988 PMCID: PMC3774103 DOI: 10.1177/0363546510361950] [Citation(s) in RCA: 198] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Donor-site morbidity, limited numbers of cells, loss of phenotype during ex vivo expansion, and age-related decline in chondrogenic activity present critical obstacles to the use of autologous chondrocyte implantation for cartilage repair. Chondrocytes from juvenile cadaveric donors may represent an alternative to autologous cells. Hypothesis/ PURPOSE The authors hypothesized that juvenile chondrocyte would show stronger and more stable chondrogenic activity than adult cells in vitro and that juvenile cells pose little risk of immunologic incompatibility in adult hosts. STUDY DESIGN Controlled laboratory study. METHODS Cartilage samples were from juvenile (<13 years old) and adult (>13 years old) donors. The chondrogenic activity of freshly isolated human articular chondrocytes and of expanded cells after monolayer culture was measured by proteoglycan assay, gene expression analysis, and histology. Lymphocyte proliferation assays were used to assess immunogenic activity. RESULTS Proteoglycan content in neocartilage produced by juvenile chondrocytes was 100-fold higher than in neocartilage produced by adult cells. Collagen type II and type IX mRNA in fresh juvenile chondrocytes were 100- and 700-fold higher, respectively, than in adult chondrocytes. The distributions of collagens II and IX were similar in native juvenile cartilage and in neocartilage made by juvenile cells. Juvenile cells grew significantly faster in monolayer cultures than adult cells (P = .002) and proteoglycan levels produced in agarose culture was significantly higher in juvenile cells than in adult cells after multiple passages (P < .001). Juvenile chondrocytes did not stimulate lymphocyte proliferation. CONCLUSION These results document a dramatic age-related decline in human chondrocyte chondrogenic potential and show that allogeneic juvenile chondrocytes do not stimulate an immunologic response in vivo. CLINICAL RELEVANCE Juvenile human chondrocytes have greater potential to restore articular cartilage than adult cells, and may be transplanted without the fear of rejection, suggesting a new allogeneic approach to restoring articular cartilage in older individuals.
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Affiliation(s)
- H Davis Adkisson
- ISTO Technologies, Inc, St Louis, Missouri, St Louis, MO 63132, USA.
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Moussavi-Harami SF, Pedersen DR, Martin JA, Hillis SL, Brown TD. Automated objective scoring of histologically apparent cartilage degeneration using a custom image analysis program. J Orthop Res 2009; 27:522-8. [PMID: 18972361 PMCID: PMC3682491 DOI: 10.1002/jor.20779] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Histologic assessment of cartilage degradation has traditionally involved semiquantitative techniques, the most commonly utilized being the Mankin scale. Such assessments depend on human observer subjectivity, and thus have drawn criticism on the basis of associated inter- and intraobserver variability. We report a newly developed computational image analysis procedure for fully automated and fully objective assessment of the Mankin scale. Image processing routines were developed in a widely used programming environment (Matlab) to analyze cartilage degradation. One hundred and twenty-five histology images incorporating a wide range of degradation features were analyzed by the algorithm and by seven observers experienced in cartilage histologic assessment. Based on random effects linear statistical models, the computer program performed well, showing a correlation of 0.88 between its Mankin scores and latent (average of human observers') image scores. Regarding the four subcomponents of the Mankin scale, computer program correlations with observer scores were best for surface defect and proteoglycan depletion, but less favorable for cellularity and tidemark invasion. While limitations exist with image processing techniques, the new algorithm provides an objective and automated method for analyzing cartilage histology sections, consistent with human observer grading.
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Affiliation(s)
- S. Farshid Moussavi-Harami
- Department of Orthopaedics and Rehabilitation, 2181 Westlawn Building, University of Iowa, Iowa City, Iowa 52242-1100
,Department of Biomedical Engineering, Orthopaedic Biomechanics Laboratory, University of Iowa, Iowa City, Iowa
| | - Douglas R. Pedersen
- Department of Orthopaedics and Rehabilitation, 2181 Westlawn Building, University of Iowa, Iowa City, Iowa 52242-1100
,Department of Biomedical Engineering, Orthopaedic Biomechanics Laboratory, University of Iowa, Iowa City, Iowa
| | - James A. Martin
- Department of Biomedical Engineering, Orthopaedic Biomechanics Laboratory, University of Iowa, Iowa City, Iowa
| | - Stephen L. Hillis
- Center for Research in the Implementation of Innovative Strategies in Practice (CRIISP), Department of Veterans Affairs (VA), Iowa City Medical Center, Iowa City, Iowa
,Department of Biostatistics, University of Iowa, Iowa City, Iowa
| | - Thomas D. Brown
- Department of Orthopaedics and Rehabilitation, 2181 Westlawn Building, University of Iowa, Iowa City, Iowa 52242-1100
,Department of Biomedical Engineering, Orthopaedic Biomechanics Laboratory, University of Iowa, Iowa City, Iowa
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