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Feng J, Zhang Q, Pu F, Zhu Z, Lu K, Lu WW, Tong L, Yu H, Chen D. Signalling interaction between β-catenin and other signalling molecules during osteoarthritis development. Cell Prolif 2024; 57:e13600. [PMID: 38199244 PMCID: PMC11150147 DOI: 10.1111/cpr.13600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 11/29/2023] [Accepted: 12/29/2023] [Indexed: 01/12/2024] Open
Abstract
Osteoarthritis (OA) is the most prevalent disorder of synovial joint affecting multiple joints. In the past decade, we have witnessed conceptual switch of OA pathogenesis from a 'wear and tear' disease to a disease affecting entire joint. Extensive studies have been conducted to understand the underlying mechanisms of OA using genetic mouse models and ex vivo joint tissues derived from individuals with OA. These studies revealed that multiple signalling pathways are involved in OA development, including the canonical Wnt/β-catenin signalling and its interaction with other signalling pathways, such as transforming growth factor β (TGF-β), bone morphogenic protein (BMP), Indian Hedgehog (Ihh), nuclear factor κB (NF-κB), fibroblast growth factor (FGF), and Notch. The identification of signalling interaction and underlying mechanisms are currently underway and the specific molecule(s) and key signalling pathway(s) playing a decisive role in OA development need to be evaluated. This review will focus on recent progresses in understanding of the critical role of Wnt/β-catenin signalling in OA pathogenesis and interaction of β-catenin with other pathways, such as TGF-β, BMP, Notch, Ihh, NF-κB, and FGF. Understanding of these novel insights into the interaction of β-catenin with other pathways and its integration into a complex gene regulatory network during OA development will help us identify the key signalling pathway of OA pathogenesis leading to the discovery of novel therapeutic strategies for OA intervention.
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Affiliation(s)
- Jing Feng
- Department of Orthopedics, Traditional Chinese and Western Medicine Hospital of WuhanTongji Medical College, Huazhong University of Science and TechnologyWuhanHubeiChina
- Department of OrthopedicsWuhan No. 1 HospitalWuhanHubeiChina
| | - Qing Zhang
- Department of EmergencyRenmin Hospital, Wuhan UniversityWuhanHubeiChina
| | - Feifei Pu
- Department of Orthopedics, Traditional Chinese and Western Medicine Hospital of WuhanTongji Medical College, Huazhong University of Science and TechnologyWuhanHubeiChina
- Department of OrthopedicsWuhan No. 1 HospitalWuhanHubeiChina
| | - Zhenglin Zhu
- Department of Orthopedic Surgerythe First Affiliated Hospital of Chongqing Medical UniversityChongqingChina
| | - Ke Lu
- Faculty of Pharmaceutical SciencesShenzhen Institute of Advanced TechnologyShenzhenChina
- Research Center for Computer‐aided Drug DiscoveryShenzhen Institute of Advanced Technology, Chinese Academy of SciencesShenzhenChina
| | - William W. Lu
- Faculty of Pharmaceutical SciencesShenzhen Institute of Advanced TechnologyShenzhenChina
| | - Liping Tong
- Research Center for Computer‐aided Drug DiscoveryShenzhen Institute of Advanced Technology, Chinese Academy of SciencesShenzhenChina
| | - Huan Yu
- Department of Orthopedics, Traditional Chinese and Western Medicine Hospital of WuhanTongji Medical College, Huazhong University of Science and TechnologyWuhanHubeiChina
- Department of OrthopedicsWuhan No. 1 HospitalWuhanHubeiChina
| | - Di Chen
- Faculty of Pharmaceutical SciencesShenzhen Institute of Advanced TechnologyShenzhenChina
- Research Center for Computer‐aided Drug DiscoveryShenzhen Institute of Advanced Technology, Chinese Academy of SciencesShenzhenChina
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2
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Wu M, Wu S, Chen W, Li YP. The roles and regulatory mechanisms of TGF-β and BMP signaling in bone and cartilage development, homeostasis and disease. Cell Res 2024; 34:101-123. [PMID: 38267638 PMCID: PMC10837209 DOI: 10.1038/s41422-023-00918-9] [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: 02/26/2023] [Accepted: 12/15/2023] [Indexed: 01/26/2024] Open
Abstract
Transforming growth factor-βs (TGF-βs) and bone morphometric proteins (BMPs) belong to the TGF-β superfamily and perform essential functions during osteoblast and chondrocyte lineage commitment and differentiation, skeletal development, and homeostasis. TGF-βs and BMPs transduce signals through SMAD-dependent and -independent pathways; specifically, they recruit different receptor heterotetramers and R-Smad complexes, resulting in unique biological readouts. BMPs promote osteogenesis, osteoclastogenesis, and chondrogenesis at all differentiation stages, while TGF-βs play different roles in a stage-dependent manner. BMPs and TGF-β have opposite functions in articular cartilage homeostasis. Moreover, TGF-β has a specific role in maintaining the osteocyte network. The precise activation of BMP and TGF-β signaling requires regulatory machinery at multiple levels, including latency control in the matrix, extracellular antagonists, ubiquitination and phosphorylation in the cytoplasm, nucleus-cytoplasm transportation, and transcriptional co-regulation in the nuclei. This review weaves the background information with the latest advances in the signaling facilitated by TGF-βs and BMPs, and the advanced understanding of their diverse physiological functions and regulations. This review also summarizes the human diseases and mouse models associated with disordered TGF-β and BMP signaling. A more precise understanding of the BMP and TGF-β signaling could facilitate the development of bona fide clinical applications in treating bone and cartilage disorders.
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Affiliation(s)
- Mengrui Wu
- Department of Cell and Developmental Biology, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang, China.
| | - Shali Wu
- Department of Cell and Developmental Biology, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang, China
| | - Wei Chen
- Division in Cellular and Molecular Medicine, Department of Pathology and Laboratory Medicine, Tulane University School of Medicine, Tulane University, New Orleans, LA, USA
| | - Yi-Ping Li
- Division in Cellular and Molecular Medicine, Department of Pathology and Laboratory Medicine, Tulane University School of Medicine, Tulane University, New Orleans, LA, USA.
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3
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Dong Y, Chen Y, Ma G, Cao H. The role of E3 ubiquitin ligases in bone homeostasis and related diseases. Acta Pharm Sin B 2023; 13:3963-3987. [PMID: 37799379 PMCID: PMC10547920 DOI: 10.1016/j.apsb.2023.06.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 05/16/2023] [Accepted: 05/18/2023] [Indexed: 10/07/2023] Open
Abstract
The ubiquitin-proteasome system (UPS) dedicates to degrade intracellular proteins to modulate demic homeostasis and functions of organisms. These enzymatic cascades mark and modifies target proteins diversly through covalently binding ubiquitin molecules. In the UPS, E3 ubiquitin ligases are the crucial constituents by the advantage of recognizing and presenting proteins to proteasomes for proteolysis. As the major regulators of protein homeostasis, E3 ligases are indispensable to proper cell manners in diverse systems, and they are well described in physiological bone growth and bone metabolism. Pathologically, classic bone-related diseases such as metabolic bone diseases, arthritis, bone neoplasms and bone metastasis of the tumor, etc., were also depicted in a UPS-dependent manner. Therefore, skeletal system is versatilely regulated by UPS and it is worthy to summarize the underlying mechanism. Furthermore, based on the current status of treatment, normal or pathological osteogenesis and tumorigenesis elaborated in this review highlight the clinical significance of UPS research. As a strategy possibly remedies the limitations of UPS treatment, emerging PROTAC was described comprehensively to illustrate its potential in clinical application. Altogether, the purpose of this review aims to provide more evidence for exploiting novel therapeutic strategies based on UPS for bone associated diseases.
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Affiliation(s)
| | | | - Guixing Ma
- Department of Biochemistry, School of Medicine, Southern University of Science and Technology, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Key University Laboratory of Metabolism and Health of Guangdong, Shenzhen 518055, China
| | - Huiling Cao
- Department of Biochemistry, School of Medicine, Southern University of Science and Technology, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Key University Laboratory of Metabolism and Health of Guangdong, Shenzhen 518055, China
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4
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Zheng C, Chen J, Wu Y, Wang X, Lin Y, Shu L, Liu W, Wang P. Elucidating the role of ubiquitination and deubiquitination in osteoarthritis progression. Front Immunol 2023; 14:1217466. [PMID: 37359559 PMCID: PMC10288844 DOI: 10.3389/fimmu.2023.1217466] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 06/01/2023] [Indexed: 06/28/2023] Open
Abstract
Osteoarthritis is non-inflammatory degenerative joint arthritis, which exacerbates disability in elder persons. The molecular mechanisms of osteoarthritis are elusive. Ubiquitination, one type of post-translational modifications, has been demonstrated to accelerate or ameliorate the development and progression of osteoarthritis via targeting specific proteins for ubiquitination and determining protein stability and localization. Ubiquitination process can be reversed by a class of deubiquitinases via deubiquitination. In this review, we summarize the current knowledge regarding the multifaceted role of E3 ubiquitin ligases in the pathogenesis of osteoarthritis. We also describe the molecular insight of deubiquitinases into osteoarthritis processes. Moreover, we highlight the multiple compounds that target E3 ubiquitin ligases or deubiquitinases to influence osteoarthritis progression. We discuss the challenge and future perspectives via modulation of E3 ubiquitin ligases and deubiquitinases expression for enhancement of the therapeutic efficacy in osteoarthritis patients. We conclude that modulating ubiquitination and deubiquitination could alleviate the osteoarthritis pathogenesis to achieve the better treatment outcomes in osteoarthritis patients.
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Affiliation(s)
- Chenxiao Zheng
- Department of Orthopaedics and Traumatology, Zhongshan Hospital of Traditional Chinese Medicine Affiliated to Guangzhou University of Traditional Chinese Medicine, Zhongshan, Guangdong, China
| | - Jiayi Chen
- Department of Orthopaedics and Traumatology, Zhongshan Hospital of Traditional Chinese Medicine Affiliated to Guangzhou University of Traditional Chinese Medicine, Zhongshan, Guangdong, China
| | - Yurui Wu
- Department of Orthopaedics and Traumatology, Zhongshan Hospital of Traditional Chinese Medicine Affiliated to Guangzhou University of Traditional Chinese Medicine, Zhongshan, Guangdong, China
| | - Xiaochao Wang
- Department of Orthopaedics, The Second Clinical Medical College of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Yongan Lin
- South China University of Technology, Guangzhou, Guangdong, China
| | - Lilu Shu
- Department of Medicine, Zhejiang Zhongwei Medical Research Center, Hangzhou, Zhejiang, China
| | - Wenjun Liu
- Department of Medicine, Zhejiang Zhongwei Medical Research Center, Hangzhou, Zhejiang, China
| | - Peter Wang
- Department of Medicine, Zhejiang Zhongwei Medical Research Center, Hangzhou, Zhejiang, China
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5
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Du X, Cai L, Xie J, Zhou X. The role of TGF-beta3 in cartilage development and osteoarthritis. Bone Res 2023; 11:2. [PMID: 36588106 PMCID: PMC9806111 DOI: 10.1038/s41413-022-00239-4] [Citation(s) in RCA: 38] [Impact Index Per Article: 38.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 09/25/2022] [Accepted: 11/03/2022] [Indexed: 01/03/2023] Open
Abstract
Articular cartilage serves as a low-friction, load-bearing tissue without the support with blood vessels, lymphatics and nerves, making its repair a big challenge. Transforming growth factor-beta 3 (TGF-β3), a vital member of the highly conserved TGF-β superfamily, plays a versatile role in cartilage physiology and pathology. TGF-β3 influences the whole life cycle of chondrocytes and mediates a series of cellular responses, including cell survival, proliferation, migration, and differentiation. Since TGF-β3 is involved in maintaining the balance between chondrogenic differentiation and chondrocyte hypertrophy, its regulatory role is especially important to cartilage development. Increased TGF-β3 plays a dual role: in healthy tissues, it can facilitate chondrocyte viability, but in osteoarthritic chondrocytes, it can accelerate the progression of disease. Recently, TGF-β3 has been recognized as a potential therapeutic target for osteoarthritis (OA) owing to its protective effect, which it confers by enhancing the recruitment of autologous mesenchymal stem cells (MSCs) to damaged cartilage. However, the biological mechanism of TGF-β3 action in cartilage development and OA is not well understood. In this review, we systematically summarize recent progress in the research on TGF-β3 in cartilage physiology and pathology, providing up-to-date strategies for cartilage repair and preventive treatment.
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Affiliation(s)
- Xinmei Du
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, 610041, Chengdu, China
| | - Linyi Cai
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, 610041, Chengdu, China
| | - Jing Xie
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, 610041, Chengdu, China.
- National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, 610041, Chengdu, China.
| | - Xuedong Zhou
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, 610041, Chengdu, China.
- National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, 610041, Chengdu, China.
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6
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Xu X, Yang C, Yu X, Wang J. Fibulin-3 regulates the inhibitory effect of TNF-α on chondrocyte differentiation partially via the TGF-β/Smad3 signaling pathway. BIOCHIMICA ET BIOPHYSICA ACTA. MOLECULAR CELL RESEARCH 2022; 1869:119285. [PMID: 35577279 DOI: 10.1016/j.bbamcr.2022.119285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 04/27/2022] [Accepted: 05/06/2022] [Indexed: 06/15/2023]
Abstract
Fibulin-3 is an extracellular matrix glycoprotein that is present in elastic tissue and involved in carcinoma development. Previous studies have indicated that fibulin-3 may affect skeletal development, cartilage, and osteoarthritis (OA). This study aims to investigate the function of fibulin-3 on chondrocytes under tumor necrosis factor alpha (TNF-α) stimulation and in murine OA models, and explore the possible mechanism. It was found that fibulin-3 was increased in the cartilage of OA models and in the chondrogenic cells ATDC5 stimulated by TNF-α. Fibulin-3 promoted the proliferation of ATDC5 cells both in the presence and absence of TNF-α. Moreover, overexpression of fibulin-3 suppressed the chondrogenic and hypertrophic differentiation of ATDC5 cells, while knockdown of fibulin-3 caused the opposite effect. Mechanistically, fibulin-3 partially suppressed the activation of TGF-β/Smad3 signaling by inhibiting the phosphorylation of Smad3. SIS3, a Smad3 inhibitor, decreased the chondrogenesis of articular cartilages in OA models, and partially reversed the chondrogenic differentiation of ATDC5 cells caused by knockdown of fibulin-3 in the presence of TNF-α. Furthermore, co-immunoprecipitation (Co-IP) showed that fibulin-3 could only interact with TGF-β type I receptor (TβRI), although overexpression of fibulin-3 reduced the protein levels of both TβRI and TβRII. In conclusion, this study indicates that fibulin-3 modulates the chondrogenic differentiation of ATDC5 cells in inflammation partially via TGF-β/Smad3 signaling pathway.
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Affiliation(s)
- Xiaoxiao Xu
- 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, No. 237 Luoyu Road, Wuhan, Hubei, 430079, China
| | - Chang Yang
- 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, No. 237 Luoyu Road, Wuhan, Hubei, 430079, China
| | - Xijie Yu
- 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, No. 237 Luoyu Road, Wuhan, Hubei, 430079, China
| | - Jiawei Wang
- 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, No. 237 Luoyu Road, Wuhan, Hubei, 430079, China.
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7
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Dooling LJ, Saini K, Anlaş AA, Discher DE. Tissue mechanics coevolves with fibrillar matrisomes in healthy and fibrotic tissues. Matrix Biol 2022; 111:153-188. [PMID: 35764212 PMCID: PMC9990088 DOI: 10.1016/j.matbio.2022.06.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 06/16/2022] [Accepted: 06/23/2022] [Indexed: 12/12/2022]
Abstract
Fibrillar proteins are principal components of extracellular matrix (ECM) that confer mechanical properties to tissues. Fibrosis can result from wound repair in nearly every tissue in adults, and it associates with increased ECM density and crosslinking as well as increased tissue stiffness. Such fibrotic tissues are a major biomedical challenge, and an emerging view posits that the altered mechanical environment supports both synthetic and contractile myofibroblasts in a state of persistent activation. Here, we review the matrisome in several fibrotic diseases, as well as normal tissues, with a focus on physicochemical properties. Stiffness generally increases with the abundance of fibrillar collagens, the major constituent of ECM, with similar mathematical trends for fibrosis as well as adult tissues from soft brain to stiff bone and heart development. Changes in expression of other core matrisome and matrisome-associated proteins or proteoglycans contribute to tissue stiffening in fibrosis by organizing collagen, crosslinking ECM, and facilitating adhesion of myofibroblasts. Understanding how ECM composition and mechanics coevolve during fibrosis can lead to better models and help with antifibrotic therapies.
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Affiliation(s)
- Lawrence J Dooling
- Molecular and Cellular Biophysics Lab, University of Pennsylvania,Philadelphia, PA 19104, USA
| | - Karanvir Saini
- Molecular and Cellular Biophysics Lab, University of Pennsylvania,Philadelphia, PA 19104, USA
| | - Alişya A Anlaş
- Molecular and Cellular Biophysics Lab, University of Pennsylvania,Philadelphia, PA 19104, USA
| | - Dennis E Discher
- Molecular and Cellular Biophysics Lab, University of Pennsylvania,Philadelphia, PA 19104, USA.
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8
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Zhang J, Pi C, Cui C, Zhou Y, Liu B, Liu J, Xu X, Zhou X, Zheng L. PTHrP promotes subchondral bone formation in TMJ-OA. Int J Oral Sci 2022; 14:37. [PMID: 35853862 PMCID: PMC9296483 DOI: 10.1038/s41368-022-00189-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 06/13/2022] [Accepted: 06/15/2022] [Indexed: 02/08/2023] Open
Abstract
PTH-related peptide (PTHrP) improves the bone marrow micro-environment to activate the bone-remodelling, but the coordinated regulation of PTHrP and transforming growth factor-β (TGFβ) signalling in TMJ-OA remains incompletely understood. We used disordered occlusion to establish model animals that recapitulate the ordinary clinical aetiology of TMJ-OA. Immunohistochemical and histological analyses revealed condylar fibrocartilage degeneration in model animals following disordered occlusion. TMJ-OA model animals administered intermittent PTHrP (iPTH) exhibited significantly decreased condylar cartilage degeneration. Micro-CT, histomorphometry, and Western Blot analyses disclosed that iPTH promoted subchondral bone formation in the TMJ-OA model animals. In addition, iPTH increased the number of osterix (OSX)-positive cells and osteocalcin (OCN)-positive cells in the subchondral bone marrow cavity. However, the number of osteoclasts was also increased by iPTH, indicating that subchondral bone volume increase was mainly due to the iPTH-mediated increase in the bone-formation ability of condylar subchondral bone. In vitro, PTHrP treatment increased condylar subchondral bone marrow-derived mesenchymal stem cell (SMSC) osteoblastic differentiation potential and upregulated the gene and protein expression of key regulators of osteogenesis. Furthermore, we found that PTHrP-PTH1R signalling inhibits TGFβ signalling during osteoblastic differentiation. Collectively, these data suggested that iPTH improves OA lesions by enhancing osteoblastic differentiation in subchondral bone and suppressing aberrant active TGFβ signalling. These findings indicated that PTHrP, which targets the TGFβ signalling pathway, may be an effective biological reagent to prevent and treat TMJ-OA in the clinic.
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Affiliation(s)
- Jun Zhang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Yunnan Key Laboratory of Stomatology, Kunming, China.,Department of, Affiliated Stomatological Hospital, Kunming Medical University, Kunming, China
| | - Caixia Pi
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Chen Cui
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yang Zhou
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Bo Liu
- Yunnan Key Laboratory of Stomatology, Kunming, China
| | - Juan Liu
- Yunnan Key Laboratory of Stomatology, Kunming, China
| | - Xin Xu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xuedong Zhou
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Liwei Zheng
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & West China Hospital of Stomatology, Sichuan University, Chengdu, China.
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9
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Kim JG, Rim YA, Ju JH. The Role of Transforming Growth Factor Beta in Joint Homeostasis and Cartilage Regeneration. Tissue Eng Part C Methods 2022; 28:570-587. [PMID: 35331016 DOI: 10.1089/ten.tec.2022.0016] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Transforming growth factor-beta (TGF-β) is an important regulator of joint homeostasis, of which dysregulation is closely associated with the development of osteoarthritis (OA). In normal conditions, its biological functions in a joint environment are joint protective, but it can be dramatically altered in different contexts, making its therapeutic application a challenge. However, with the deeper insights into the TGF-β functions, it has been proven that TGF-β augments cartilage regeneration by chondrocytes, and differentiates both the precursor cells of chondrocytes and stem cells into cartilage-generating chondrocytes. Following documentation of the therapeutic efficacy of chondrocytes augmented by TGF-β in the last decade, there is an ongoing phase III clinical trial examining the therapeutic efficacy of a mixture of allogeneic chondrocytes and TGF-β-overexpressing cells. To prepare cartilage-restoring chondrocytes from induced pluripotent stem cells (iPSCs), the stem cells are differentiated mainly using TGF-β with some other growth factors. Of note, clinical trials evaluating the therapeutic efficacy of iPSCs for OA are scheduled this year. Mesenchymal stromal stem cells (MSCs) have inherent limitations in that they differentiate into the osteochondral pathway, resulting in the production of poor-quality cartilage. Despite the established essential role of TGF-β in chondrogenic differentiation of MSCs, whether the coordinated use of TGF-β in MSC-based therapy for degenerated cartilage is effective is unknown. We herein reviewed the general characteristics and mechanism of action of TGF-β in a joint environment. Furthermore, we discussed the core interaction of TGF-β with principal cells of OA cell-based therapies, the chondrocytes, MSCs, and iPSCs. Impact Statement Transforming growth factor-beta (TGF-β) has been widely used as a core regulator to improve or formulate therapeutic regenerative cells for degenerative joints. It differentiates stem cells into chondrocytes and improves the chondrogenic potential of differentiated chondrocytes. Herein, we discussed the overall characteristics of TGF-β and reviewed the comprehension and utilization of TGF-β in cell-based therapy for degenerative joint disease.
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Affiliation(s)
- Jung Gon Kim
- Division of Rheumatology, Department of Internal Medicine, Inje University Ilsan Paik Hospital, Goyang, Korea
| | - Yeri Alice Rim
- Catholic iPSC Research Center, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Ji Hyeon Ju
- Catholic iPSC Research Center, College of Medicine, The Catholic University of Korea, Seoul, Korea.,Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
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10
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Liu J, Chen T, Li S, Liu W, Wang P, Shang G. Targeting matrix metalloproteinases by E3 ubiquitin ligases as a way to regulate the tumor microenvironment for cancer therapy. Semin Cancer Biol 2022; 86:259-268. [PMID: 35724822 DOI: 10.1016/j.semcancer.2022.06.004] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 05/27/2022] [Accepted: 06/13/2022] [Indexed: 10/31/2022]
Abstract
The tumor microenvironment (TME) plays an important role in neoplastic development. Matrix metalloproteinases (MMPs) are critically involved in tumorigenesis by modulation of the TME and degradation of the extracellular matrix (ECM) in a large variety of malignancies. Evidence has revealed that dysregulated MMPs can lead to ECM damage, the promotion of cell migration and tumor metastasis. The expression and activities of MMPs can be tightly regulated by TIMPs, multiple signaling pathways and noncoding RNAs. MMPs are also finely controlled by E3 ubiquitin ligases. The current review focuses on the molecular mechanism by which MMPs are governed by E3 ubiquitin ligases in carcinogenesis. Due to the essential role of MMPs in oncogenesis, they have been considered the attractive targets for antitumor treatment. Several strategies that target MMPs have been discovered, including the use of small-molecule inhibitors, peptides, inhibitory antibodies, natural compounds with anti-MMP activity, and RNAi therapeutics. However, these molecules have multiple disadvantages, such as poor solubility, severe side-effects and low oral bioavailability. Therefore, it is necessary to discover the novel inhibitors that suppress MMPs for cancer therapy. Here, we discuss the therapeutic potential of targeting E3 ubiquitin ligases to inhibit MMPs. We hope this review will stimulate the discovery of novel therapeutics for the MMP-targeted treatment of a variety of human cancers.
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Affiliation(s)
- Jinxin Liu
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, China
| | - Ting Chen
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, China
| | - Shizhe Li
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, China
| | - Wenjun Liu
- Department of Research and Development, Beijing Zhongwei Research Center of Biological and Translational Medicine, Beijing 100161, China
| | - Peter Wang
- Department of Research and Development, Beijing Zhongwei Research Center of Biological and Translational Medicine, Beijing 100161, China; Bengbu Medical College Key Laboratory of Cancer Research and Clinical Laboratory Diagnosis, Department of Biochemistry and Molecular Biology, School of Laboratory Medicine, Bengbu Medical College, Anhui 233030, China.
| | - Guanning Shang
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, China.
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11
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Bailey KN, Alliston T. At the Crux of Joint Crosstalk: TGFβ Signaling in the Synovial Joint. Curr Rheumatol Rep 2022; 24:184-197. [PMID: 35499698 PMCID: PMC9184360 DOI: 10.1007/s11926-022-01074-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/11/2022] [Indexed: 11/24/2022]
Abstract
PURPOSE OF REVIEW The effect of the transforming growth factor beta (TGFβ) signaling pathway on joint homeostasis is tissue-specific, non-linear, and context-dependent, representing a unique complexity in targeting TGFβ signaling in joint disease. Here we discuss the variety of mechanisms that TGFβ signaling employs in the synovial joint to maintain healthy joint crosstalk and the ways in which aberrant TGFβ signaling can result in joint degeneration. RECENT FINDINGS Osteoarthritis (OA) epitomizes a condition of disordered joint crosstalk in which multiple joint tissues degenerate leading to overall joint deterioration. Synovial joint tissues, such as subchondral bone, articular cartilage, and synovium, as well as mesenchymal stem cells, each demonstrate aberrant TGFβ signaling during joint disease, whether by excessive or suppressed signaling, imbalance of canonical and non-canonical signaling, a perturbed mechanical microenvironment, or a distorted response to TGFβ signaling during aging. The synovial joint relies upon a sophisticated alliance among each joint tissue to maintain joint homeostasis. The TGFβ signaling pathway is a key regulator of the health of individual joint tissues, and the subsequent interaction among these different joint tissues, also known as joint crosstalk. Dissecting the sophisticated function of TGFβ signaling in the synovial joint is key to therapeutically interrogating the pathway to optimize overall joint health.
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Affiliation(s)
- Karsyn N Bailey
- Department of Orthopaedic Surgery, University of California San Francisco, 513 Parnassus Avenue, CA, 94143, San Francisco, USA
- UC Berkeley-UCSF Graduate Program in Bioengineering, San Francisco, CA, USA
| | - Tamara Alliston
- Department of Orthopaedic Surgery, University of California San Francisco, 513 Parnassus Avenue, CA, 94143, San Francisco, USA.
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12
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Wang B, Zhong JL, Jiang N, Shang J, Wu B, Chen YF, Lu HD. Exploring the Mystery of Osteoarthritis using Bioinformatics Analysis of Cartilage Tissue. Comb Chem High Throughput Screen 2022; 25:53-63. [PMID: 33292128 DOI: 10.2174/1386207323666201207100905] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 11/05/2020] [Accepted: 11/09/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Osteoarthritis (OA) is a kind of chronic disease relating to joints, which seriously affectsthe daily life activities of the elderly and can also lead to disability. However, the pathogenesis of OA is still unclear, which leads to limited treatment and the therapeutic effect far from people's expectations. This study aims to filter out key genes in the pathogenesis of OA and explore their potential role in the occurrence and development of OA. METHODS The dataset of GSE117999 was obtained and analyzed in order to identify the differentially expressed genes (DEGs), hub genes and key genes. We also identified potential miRNAs which may play a major role in the pathogenesis of OA, and verified their difference in OA by real-time quantitative PCR (RT-qPCR). DGldb was found to serve as an indicator to identify drugs with potential therapeutic effects on key genes and Receiver Operating Characteristic (ROC) analysis was used for identifying underlying biomarkers of OA. RESULTS We identified ten key genes, including MDM2, RB1, EGFR, ESR1, UBE2E3, WWP1, BCL2, OAS2, TYMS and MSH2. Then, we identified hsa-mir-3613-3p, hsa-mir-548e-5p and hsamir- 5692a to be potentially related to key genes. In addition, RT-qPCR confirmed the differential expression of identified genes in mouse cartilage with or without OA. We then identified Etoposide and Everolimus, which were potentially specific to the most key genes. Finally, we speculated that ESR1 might be a potential biomarker of OA. CONCLUSION In this study, potential key genes related to OA and their biological functions were identified, and their potential application value in the diagnosis and treatment of OA has been demonstrated, which will help us to improve the therapeutic effect of OA.
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Affiliation(s)
- Bin Wang
- Department of Orthopaedics, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai 519000, Guangdong,China
| | - Jun-Long Zhong
- Department of Orthopaedics, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai 519000, Guangdong,China
| | - Ning Jiang
- Department of Orthopaedics, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai 519000, Guangdong,China
| | - Jie Shang
- Department of Orthopaedics, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai 519000, Guangdong,China
| | - Biao Wu
- Department of Orthopaedics, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai 519000, Guangdong,China
| | - Yu-Feng Chen
- Department of Orthopaedics, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai 519000, Guangdong,China
| | - Hua-Ding Lu
- Department of Orthopaedics, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai 519000, Guangdong,China
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13
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van der Kraan PM. Inhibition of transforming growth factor-β in osteoarthritis. Discrepancy with reduced TGFβ signaling in normal joints. OSTEOARTHRITIS AND CARTILAGE OPEN 2022; 4:100238. [PMID: 36474474 PMCID: PMC9718219 DOI: 10.1016/j.ocarto.2022.100238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 01/24/2022] [Accepted: 01/24/2022] [Indexed: 10/19/2022] Open
Abstract
Objective Transforming growth factor-β (TGFβ) is a pleiotropic cytokine that is central in the regulation of joint health and disease. Inhibition of TGFβ activity/signaling in experimental osteoarthritis (OA) has been performed to modulate OA severity and progression. In this narrative review we discuss the potential reasons for the variable results of TGFβ inhibition in these models. Design A literature study was performed using the search terms; experimental osteoarthritis and TGFβ. Papers were selected that describe the effect TGFβ activity/signaling inhibition on experimental OA. Based on the selected papers a narrative review has been written about the potential therapeutic role of TGFβ inhibition in OA and potential causes for its variable effects are discussed. Results Inhibition of TGFβ activity in experimental models of OA does not result in either straightforward protection or deleterious effects. More than half of the studies (13/19), but not all, report that inhibition of TGFβ in experimental OA reduces OA severity. This is in contrast with the protective role of TGFβ in healthy joints. Conclusions The effect of TGFβ inhibition on joint damage in experimental OA is variable. Most likely this is a consequence of the changing function of TGFβ in normal and OA joints. As a result, the overall outcome of TGFβ modulation in OA will be unpredictable. To develop OA therapies based on modulation of TGFβ activity specific protective and damaging signaling routes should be identified and tools developed to block the damaging ones.
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14
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Horita M, Hsu SN, Raper A, Farquharson C, Stephen LA. miR-29b inhibits TGF-β1-induced cell proliferation in articular chondrocytes. Biochem Biophys Rep 2022; 29:101216. [PMID: 35128082 PMCID: PMC8800026 DOI: 10.1016/j.bbrep.2022.101216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 01/12/2022] [Accepted: 01/20/2022] [Indexed: 10/25/2022] Open
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15
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Kim J. Dysregulated circular RNAs and their pathological implications in knee osteoarthritis: potential novel therapeutic targets and diagnostic biomarkers. ALL LIFE 2022. [DOI: 10.1080/26895293.2021.2020172] [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] Open
Affiliation(s)
- Jaehee Kim
- Department of Alternative Medicine, Graduate School of Alternative Medicine, Kyonggi University (Seoul Campus), Seoul, Republic of Korea
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16
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β2-microglobulin alters the profiles of inflammatory cytokines and of matrix metalloprotease in macrophages derived from the osteoarthritic synovium. Cent Eur J Immunol 2022; 47:332-338. [PMID: 36817398 PMCID: PMC9901252 DOI: 10.5114/ceji.2022.124092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 12/16/2022] [Indexed: 01/19/2023] Open
Abstract
Several studies have implicated β2-microglobulin (B2M) in osteoarthritis (OA) pathology. Of the main constituents of synovial tissue, synovial fibroblasts and macrophages, the latter play a pivotal role in inflammation. Although several studies have investigated the effects of B2M on synovial fibroblasts, few have examined the impact on synovial macrophages. Here, we investigated the effect of B2M on the expression profiles of inflammatory cytokines and matrix metalloproteases (MMPs) in synovial macrophages. Synovial macrophages were isolated from the osteoarthritic synovium using an anti-CD14 anti- body and magnetic isolation system. Synovial macrophages were stimulated with B2M for 6 and 24 h. Following stimulation, cell surface marker (CD80, CD163, CD206), cytokine [interleukin (IL)-6, IL-8, tumor necrosis factor α (TNF-α)] and matrix metalloprotease (MMP; MMP-9 and MMP-13) genes were evaluated by real-time PCR. Additionally, cytokine concentrations in cell culture supernatant were determined using enzyme-linked immunosorbent assay (ELISA). B2M significantly increased CD80 and decreased CD163 expression. In addition, B2M stimulation increased inflammatory cytokines at both the mRNA and protein levels. While B2M likewise elevated MMP-13 levels, there was no difference in MMP-9 expression between vehicle and B2M-treated cells. B2M increased M1 macrophage marker, inflammatory cytokine, and MMP-13 expression in synovial macrophages. B2M-related activation of synovial macrophages may thus be associated with OA pathology.
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17
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Schminke B, Kauffmann P, Schubert A, Altherr M, Gelis T, Miosge N. SMURF1 and SMURF2 in Progenitor Cells from Articular Cartilage and Meniscus during Late-Stage Osteoarthritis. Cartilage 2021; 13:117S-128S. [PMID: 33090007 PMCID: PMC8721605 DOI: 10.1177/1947603520967069] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
OBJECTIVE The aim of this study was to investigate the roles of SMURF1 and SMURF2 in progenitor cells from the human knee in late-stage osteoarthritis (OA). DESIGN We applied immunohistochemistry, immunocytochemistry, RNAi, lentiviral transfection, and Western blot analysis. We obtained chondrogenic progenitor cells (CPCs) from the articular cartilage and meniscus progenitor cells (MPCs) from the nonvascularized part of the meniscus. RESULTS SMURF1 and SMURF2 appeared in both osteoarthritic tissues. CPCs and MPCs exhibited comparable amounts of these proteins, which influence the balance between RUNX2 and SOX9. The overexpression of SMURF1 reduced the levels of RUNX2, SOX9, and TGFBR1. The overexpression of SMURF2 also reduced the levels of RUNX2 and TGFBR1, while SOX9 levels were not affected. The knockdown of SMURF1 had no effect on RUNX2, SOX9, or TGFBR1. The knockdown of SMURF2 enhanced RUNX2 and SOX9 levels in CPCs. The respective protein levels in MPCs were not affected. CONCLUSIONS This study shows that SMURF1 and SMURF2 are regulatory players for the expression of the major regulator transcription factors RUNX2 and SOX9 in CPCs and MPCs. Our novel findings may help elucidate new treatment strategies for cartilage regeneration.
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Affiliation(s)
- Boris Schminke
- Department of Oral and Maxillofacial
Surgery, University Medical Center Goettingen, Göttingen, Germany,Oral Biology and Tissue Regeneration
Work Group, University Medical Center Goettingen, Göttingen, Germany
| | - Philipp Kauffmann
- Department of Oral and Maxillofacial
Surgery, University Medical Center Goettingen, Göttingen, Germany
| | - Andrea Schubert
- Oral Biology and Tissue Regeneration
Work Group, University Medical Center Goettingen, Göttingen, Germany
| | - Manuel Altherr
- Oral Biology and Tissue Regeneration
Work Group, University Medical Center Goettingen, Göttingen, Germany
| | - Thomas Gelis
- Oral Biology and Tissue Regeneration
Work Group, University Medical Center Goettingen, Göttingen, Germany
| | - Nicolai Miosge
- Oral Biology and Tissue Regeneration
Work Group, University Medical Center Goettingen, Göttingen, Germany,Nicolai Miosge, Oral Biology and Tissue
Regeneration Work Group, University Medical Center Göttingen,
Robert-Koch-Strasse 40, Göttingen, 37075, Germany.
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18
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Wen L, Gao M, He Z, Guo P, Liu Z, Zhang P, Zhang F, Chen D, Zhou G, Zhou Z. Noggin, an inhibitor of bone morphogenetic protein signaling, antagonizes TGF-β1 in a mouse model of osteoarthritis. Biochem Biophys Res Commun 2021; 570:199-205. [PMID: 34298323 DOI: 10.1016/j.bbrc.2021.07.044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Accepted: 07/12/2021] [Indexed: 11/26/2022]
Abstract
Osteoarthritis (OA) is the most common joint disease worldwide; however, disease-modifying treatments are lacking because of the complicated pathological mechanisms. As a breakthrough, aberrant activation of transforming growth factor-β 1 (TGF-β1)in subchondral bone has been confirmed as an essential pathomechanism for OA progression, and has become a potential therapeutic target. In addition to R&D on neutralizing antibodies, small-molecule antagonists and chemical medicines, native antagonists of TGF-β1 could be exploited as another promising approach. Noggin (NOG) is an antagonist of bone morphogenetic proteins (BMPs) and was reported to effectively attenuate OA by protecting cartilage and preventing pathological subchondral bone remodeling. However, the underlying mechanisms have not been fully clarified. We first detected the distribution of NOG in knee joints of an OA mouse model, which showed upregulation at early stage of OA but downregulation later in the subchondral bone and no significant change in the articular cartilage. Furthermore, the interaction between NOG and TGF-β1 was verified, which in turn suppressed the downstream SMAD2/3 activity of TGF-β1. Moreover, the proliferation and chondrogenesis of mesenchymal stem cells (MSCs) were not significantly influenced by NOG. Taken together, the results showed that NOG antagonized TGF-β1 but did not repress MSC proliferation and chondrogenesis; thus, it seems promising for OA treatment.
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Affiliation(s)
- Liru Wen
- Shenzhen Key Laboratory of Anti-aging and Regenerative Medicine, Department of Medical Cell Biology and Genetics, Health Sciences Center, Shenzhen University, Shenzhen, China.
| | - Manman Gao
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen, 518060, China; Department of Orthopaedic Surgery, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China; Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.
| | - Zhongyuan He
- Department of Orthopaedic Surgery, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China; Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.
| | - Peng Guo
- Department of Orthopaedic Surgery, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China; Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.
| | - Zhen Liu
- Shenzhen Key Laboratory of Anti-aging and Regenerative Medicine, Department of Medical Cell Biology and Genetics, Health Sciences Center, Shenzhen University, Shenzhen, China.
| | - Penghui Zhang
- Department of Orthopaedic Surgery, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China; Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.
| | - Fu Zhang
- Department of Orthopaedic Surgery, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China; Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.
| | - Dafu Chen
- Laboratory of Bone Tissue Engineering, Beijing Laboratory of Biomedical Materials, Beijing Research Institute of Orthopaedics and Traumatology, Beijing JiShuiTan Hospital, Beijing, 100035, China.
| | - Guangqian Zhou
- Shenzhen Key Laboratory of Anti-aging and Regenerative Medicine, Department of Medical Cell Biology and Genetics, Health Sciences Center, Shenzhen University, Shenzhen, China.
| | - Zhiyu Zhou
- Department of Orthopaedic Surgery, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China; Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.
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19
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Cherifi C, Monteagudo S, Lories RJ. Promising targets for therapy of osteoarthritis: a review on the Wnt and TGF-β signalling pathways. Ther Adv Musculoskelet Dis 2021; 13:1759720X211006959. [PMID: 33948125 PMCID: PMC8053758 DOI: 10.1177/1759720x211006959] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 03/10/2021] [Indexed: 12/21/2022] Open
Abstract
Osteoarthritis (OA) is the most common chronic joint disorder worldwide, with a high personal burden for the patients and an important socio-economic impact. Current therapies are largely limited to pain management and rehabilitation and exercise strategies. For advanced cases, joint replacement surgery may be the only option. Hence, there is an enormous need for the development of effective and safe disease-modifying anti-OA drugs. A strong focus in OA research has been on the identification and role of molecular signalling pathways that contribute to the balance between anabolism and catabolism in the articular cartilage. In this context, most insights have been gained in understanding the roles of the transforming growth factor-beta (TGF-β) and the Wingless-type (Wnt) signalling cascades. The emerging picture demonstrates a high degree of complexity with context-dependent events. TGF-β appears to protect cartilage under healthy conditions, but shifts in its receptor use and subsequent downstream signalling may be deleterious in aged individuals or in damaged cartilage. Likewise, low levels of Wnt activity appear important to sustain chondrocyte viability but excessive activation is associated with progressive joint damage. Emerging clinical data suggest some potential for the use of sprifermin, a recombinant forms of fibroblast growth factor 18, a distant TGF-β superfamily member, and for lorecivivint, a Wnt pathway modulator.
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Affiliation(s)
- Chahrazad Cherifi
- Department of Development and Regeneration, KU Leuven, Skeletal Biology and Engineering Research Centre, Leuven, Belgium
| | - Silvia Monteagudo
- Department of Development and Regeneration, KU Leuven, Skeletal Biology and Engineering Research Centre, Leuven, Belgium
| | - Rik J Lories
- Department of Development and Regeneration, KU Leuven, Skeletal Biology and Engineering Research Centre, Box 813 O&N, Herestraat 49, Leuven 3000, Belgium; Division of Rheumatology, University Hospitals Leuven, Leuven, Belgium
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20
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Zheng W, Hou G, Li Y. Circ_0116061 regulated the proliferation, apoptosis, and inflammation of osteoarthritis chondrocytes through regulating the miR-200b-3p/SMURF2 axis. J Orthop Surg Res 2021; 16:253. [PMID: 33849596 PMCID: PMC8045261 DOI: 10.1186/s13018-021-02391-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 03/31/2021] [Indexed: 01/21/2023] Open
Abstract
Background Circular RNA (circRNA) has been shown to be associated with osteoarthritis (OA) progression. Circ_0116061 has been found to be highly expressed in OA cartilage tissues, but its role and mechanism in OA progression remain unclear. Methods Expression levels of circ_0116061, microRNA (miR)-200b-5p, and Smad ubiquitin regulatory factor 2 (SMURF2) were detected using quantitative real-time PCR. The proliferation and apoptosis of cells were measured using cell counting kit 8 (CCK8) assay, colony formation assay, and flow cytometry. Furthermore, the protein levels of proliferation-related marker, apoptosis-related markers, inflammatory factors, and SMURF2 were tested using western blot (WB) analysis. In addition, the interaction between miR-200b-3p and circ_0116061 or SMURF2 was examined using dual-luciferase reporter assay and biotin-labeled RNA pull-down assay. Results Circ_0116061 and SMURF2 were highly expressed, and miR-200b-3p was lowly expressed in OA cartilage tissues. Knockdown of circ_0116061 could promote the proliferation and inhibit the apoptosis and inflammation of OA chondrocytes. MiR-200b-3p could be sponged by circ_0116061, and its inhibitor could reverse the regulation of circ_0116061 silencing on the biological functions of OA chondrocytes. SMURF2 was a target of miR-200b-3p, and its expression was positively regulated by circ_0116061. Silencing of SMURF2 also could enhance the proliferation and suppress the apoptosis and inflammation of OA chondrocytes. Furthermore, the regulation of circ_0116061 silencing on the biological functions of OA chondrocytes also could be reversed by SMURF2 overexpression. Conclusion Our data showed that circ_0116061 might regulate the miR-200b-3p/SMURF2 axis to promote the progression of OA.
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Affiliation(s)
- Wei Zheng
- Department of Joint Surgery, Rizhao Central Hospital, Rizhao, 276800, Shandong, China
| | - Guanhua Hou
- Department of Orthopedics, Peking University Medical Zibo Hospital, Zibo, 255069, Shandong, China
| | - Yong Li
- Department of Spine, Central People's Hospital of Tengzhou, 181 Xingtan Road, Tengzhou, 277500, Shandong, China.
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21
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Zhen G, Guo Q, Li Y, Wu C, Zhu S, Wang R, Guo XE, Kim BC, Huang J, Hu Y, Dan Y, Wan M, Ha T, An S, Cao X. Mechanical stress determines the configuration of TGFβ activation in articular cartilage. Nat Commun 2021; 12:1706. [PMID: 33731712 PMCID: PMC7969741 DOI: 10.1038/s41467-021-21948-0] [Citation(s) in RCA: 78] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 02/19/2021] [Indexed: 01/18/2023] Open
Abstract
Our incomplete understanding of osteoarthritis (OA) pathogenesis has significantly hindered the development of disease-modifying therapy. The functional relationship between subchondral bone (SB) and articular cartilage (AC) is unclear. Here, we found that the changes of SB architecture altered the distribution of mechanical stress on AC. Importantly, the latter is well aligned with the pattern of transforming growth factor beta (TGFβ) activity in AC, which is essential in the regulation of AC homeostasis. Specifically, TGFβ activity is concentrated in the areas of AC with high mechanical stress. A high level of TGFβ disrupts the cartilage homeostasis and impairs the metabolic activity of chondrocytes. Mechanical stress stimulates talin-centered cytoskeletal reorganization and the consequent increase of cell contractile forces and cell stiffness of chondrocytes, which triggers αV integrin–mediated TGFβ activation. Knockout of αV integrin in chondrocytes reversed the alteration of TGFβ activation and subsequent metabolic abnormalities in AC and attenuated cartilage degeneration in an OA mouse model. Thus, SB structure determines the patterns of mechanical stress and the configuration of TGFβ activation in AC, which subsequently regulates chondrocyte metabolism and AC homeostasis. The functional relationship between subchondral bone and articular cartilage is unclear. Here, the authors show that transforming growth factor-beta propagates the mechanical impact of subchondral bone on articular cartilage through αV integrin–talin mechanical transduction system in chondrocytes.
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Affiliation(s)
- Gehua Zhen
- Department of Orthopaedic Surgery, The Johns Hopkins University, Baltimore, MD, USA
| | - Qiaoyue Guo
- Department of Orthopaedic Surgery, The Johns Hopkins University, Baltimore, MD, USA
| | - Yusheng Li
- Department of Orthopaedic Surgery, The Johns Hopkins University, Baltimore, MD, USA
| | - Chuanlong Wu
- Department of Orthopaedic Surgery, The Johns Hopkins University, Baltimore, MD, USA
| | - Shouan Zhu
- Department of Orthopaedic Surgery, The Johns Hopkins University, Baltimore, MD, USA
| | - Ruomei Wang
- Department of Orthopaedic Surgery, The Johns Hopkins University, Baltimore, MD, USA
| | - X Edward Guo
- Department of Biomedical Engineering, Columbia University, New York, NY, USA
| | - Byoung Choul Kim
- Department of Biophysics and Biophysical Chemistry, The Johns Hopkins University, Baltimore, MD, USA
| | - Jessie Huang
- Department of Pharmacology, Rutgers-Robert Wood Johnson Medical School, The State University of New Jersey, Piscataway, NJ, USA
| | - Yizhong Hu
- Department of Biomedical Engineering, Columbia University, New York, NY, USA
| | - Yang Dan
- Department of Orthopaedic Surgery, The Johns Hopkins University, Baltimore, MD, USA
| | - Mei Wan
- Department of Orthopaedic Surgery, The Johns Hopkins University, Baltimore, MD, USA
| | - Taekjip Ha
- Department of Biophysics and Biophysical Chemistry, The Johns Hopkins University, Baltimore, MD, USA
| | - Steven An
- Department of Pharmacology, Rutgers-Robert Wood Johnson Medical School, The State University of New Jersey, Piscataway, NJ, USA.,Rutgers Institute for Translational Medicine and Science, New Brunswick, NJ, USA
| | - Xu Cao
- Department of Orthopaedic Surgery, The Johns Hopkins University, Baltimore, MD, USA.
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22
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Bailey KN, Nguyen J, Yee CS, Dole NS, Dang A, Alliston T. Mechanosensitive Control of Articular Cartilage and Subchondral Bone Homeostasis in Mice Requires Osteocytic Transforming Growth Factor β Signaling. Arthritis Rheumatol 2021; 73:414-425. [PMID: 33022131 DOI: 10.1002/art.41548] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 09/23/2020] [Indexed: 12/25/2022]
Abstract
OBJECTIVE Transforming growth factor β (TGFβ) signaling plays a complex tissue-specific and nonlinear role in osteoarthritis (OA). This study was conducted to determine the osteocytic contributions of TGFβ signaling to OA. METHODS To identify the role of osteocytic TGFβ signaling in joint homeostasis, we used 16-week-old male mice (n = 9-11 per group) and female mice (n = 7-11 per group) with an osteocyte-intrinsic ablation of TGFβ receptor type II (TβRIIocy-/- mice) and assessed defects in cartilage degeneration, subchondral bone plate (SBP) thickness, and SBP sclerostin expression. To further investigate these mechanisms in 16-week-old male mice, we perturbed joint homeostasis by subjecting 8-week-old mice to medial meniscal/ligamentous injury (MLI), which preferentially disrupts the mechanical environment of the medial joint to induce OA. RESULTS In all contexts, independent of sex, genotype, or medial or lateral joint compartment, increased SBP thickness and SBP sclerostin expression were spatially associated with cartilage degeneration. Male TβRIIocy-/- mice, but not female TβRIIocy-/- mice, had increased cartilage degeneration, increased SBP thickness, and higher levels of SBP sclerostin compared with control mice (all P < 0.05), demonstrating that the role of osteocytic TGFβ signaling on joint homeostasis is sexually dimorphic. With changes in joint mechanics following injury, control mice had increased SBP thickness, subchondral bone volume, and SBP sclerostin expression (all P < 0.05). TβRIIocy-/- mice, however, were insensitive to subchondral bone changes with injury, suggesting that mechanosensation at the SBP requires osteocytic TGFβ signaling. CONCLUSION Our results provide new evidence that osteocytic TGFβ signaling is required for a mechanosensitive response to injury, and that osteocytes control SBP homeostasis to maintain cartilage health, identifying osteocytic TGFβ signaling as a novel therapeutic target for OA.
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Affiliation(s)
| | - Jeffrey Nguyen
- University of California, San Francisco, and California State University, Long Beach
| | | | | | - Alexis Dang
- University of California, San Francisco and San Francisco VAMC, San Francisco, California
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23
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Kabir W, Di Bella C, Jo I, Gould D, Choong PFM. Human Stem Cell Based Tissue Engineering for In Vivo Cartilage Repair: A Systematic Review. TISSUE ENGINEERING PART B-REVIEWS 2020; 27:74-93. [PMID: 32729380 DOI: 10.1089/ten.teb.2020.0155] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Pure chondral defects represent the most clinically significant articular cartilage injuries. To inform the development of clinically suitable tissue-engineering strategies for chondral repair using cells from a human patient, the combination of human stem cells (HSCs), biomaterial scaffolds, and growth factors has been widely harnessed in preclinical animal models. Due to the large heterogeneity in study designs and outcome reporting in such studies, we aimed to systematically review literature pertaining to HSC based tissue engineering strategies in animal models of chondral repair such that trends may be identified and the utility of HSCs in chondral repair can be elucidated. An extensive search strategy was carried out through PubMed, MEDLINE, and EMBASE databases to identify relevant studies. Initially the title and abstract of 787 studies were screened after which inclusion and exclusion criteria sorted 56 studies for full-text evaluation. Following full text review, a final number of 22 articles were included. Out of 22 included studies, 16 used scaffold implantation, 2 used cell pellet implantation, and 4 used intra-articular injection to administer HSCs to the region of chondral defects. HSC-containing implants outperformed scaffold-only or untreated control groups in both large and small animals for chondral regeneration. Umbilical cord mesenchymal stem cells and hyaluronic acid-containing scaffolds emerged as popular stem cell and scaffold choices, respectively. However, the short analysis timepoints post cell implantation was a key limitation in many studies. This review highlights the versatility of HSCs in achieving chondral regeneration in vivo and the enhancement of chondral repair through the selection of appropriate three-dimensional scaffolds and growth factors which are essential to support cell growth, attachment, migration, and extracellular matrix synthesis. Considerable heterogeneity exists in outcome reporting, and only one article reported biomechanical evaluation of neocartilage. Standardized outcome reporting systems that include comprehensive biomechanical testing protocols should be utilized in future in vivo studies of cartilage tissue engineering as the biomechanical quality of neocartilage is of great functional significance.
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Affiliation(s)
- Wassif Kabir
- Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Parkville, Victoria, Australia.,BioFab3D, Aikenhead Centre for Medical Discovery, St. Vincent's Hospital, Fitzroy, Australia
| | - Claudia Di Bella
- BioFab3D, Aikenhead Centre for Medical Discovery, St. Vincent's Hospital, Fitzroy, Australia.,Department of Orthopaedics, St. Vincent's Hospital, Fitzroy, Victoria, Australia.,Department of Surgery, University of Melbourne, Clinical Sciences Building, St. Vincent's Hospital, Fitzroy, Victoria, Australia
| | - Imkyeong Jo
- Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Parkville, Victoria, Australia
| | - Daniel Gould
- Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Parkville, Victoria, Australia
| | - Peter F M Choong
- BioFab3D, Aikenhead Centre for Medical Discovery, St. Vincent's Hospital, Fitzroy, Australia.,Department of Orthopaedics, St. Vincent's Hospital, Fitzroy, Victoria, Australia.,Department of Surgery, University of Melbourne, Clinical Sciences Building, St. Vincent's Hospital, Fitzroy, Victoria, Australia
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24
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Ba C, Ni X, Yu J, Zou G, Zhu H. Ubiquitin conjugating enzyme E2 M promotes apoptosis in osteoarthritis chondrocytes via Wnt/β-catenin signaling. Biochem Biophys Res Commun 2020; 529:970-976. [PMID: 32819607 DOI: 10.1016/j.bbrc.2020.06.095] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 06/19/2020] [Indexed: 02/07/2023]
Abstract
In this study, the role of ubiquitin conjugating enzyme E2 M (UBE2M) and molecular mechanisms associated with osteoarthritis (OA) were explored. Cartilage tissues and corresponding healthy tissues from OA patients were isolated. Our data suggested that the expression level of UBE2M in OA patients was significantly higher compared to that in healthy individuals (P < 0.01). The apoptosis of human OA chondrocytes was inhibited when silencing UBE2M and increased when overexpressing UBE2M. XAV939, as a tankyrase 1 inhibitor, could block the signaling pathway of Wnt/β-catenin, which significantly reversed the change introduced by UBE2M. The expression level of cytoplasmic β-catenin in siUBE2M cells dramatically increased, and the expression levels of nuclear β-catenin, cleaved caspase-3 (C-caspase-3), and MMP13 remarkably downregulated. Moreover, the ubiquitination of Axin was enhanced by the overexpression of UBE2M. The expression level of Axin significantly decreased in OA chondrocytes with UBE2M overexpression and increased after MG132 treatment. Moreover, UBE2M enhanced the apoptosis of OA chondrocytes by activating the Axin-dependent Wnt/β-catenin pathway. In this process, UBE2M downregulated Axin in an ubiquitination-dependent degradation pathway and subsequently activated Wnt/β-catenin signaling.
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Affiliation(s)
- Chun Ba
- Department of Orthopedics, Dafeng Traditional Chinese's Hospital, Yancheng, 224100, PR China
| | - Xiaohui Ni
- Department of Orthopedics, Dafeng People's Hospital, Yancheng, 224100, PR China
| | - Junlong Yu
- Department of Orthopedics, Dafeng Traditional Chinese's Hospital, Yancheng, 224100, PR China
| | - Guoyou Zou
- Department of Orthopaedics, The Fourth Affiliated Hospital of Nantong University, Yancheng, 224005, PR China.
| | - Hao Zhu
- Department of Orthopaedics, The Fourth Affiliated Hospital of Nantong University, Yancheng, 224005, PR China.
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25
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Pinamont WJ, Yoshioka NK, Young GM, Karuppagounder V, Carlson EL, Ahmad A, Elbarbary R, Kamal F. Standardized Histomorphometric Evaluation of Osteoarthritis in a Surgical Mouse Model. J Vis Exp 2020:10.3791/60991. [PMID: 32449702 PMCID: PMC7882241 DOI: 10.3791/60991] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
One of the most prevalent joint disorders in the United States, osteoarthritis (OA) is characterized by progressive degeneration of articular cartilage, primarily in the hip and knee joints, which results in significant impacts on patient mobility and quality of life. To date, there are no existing curative therapies for OA able to slow down or inhibit cartilage degeneration. Presently, there is an extensive body of ongoing research to understand OA pathology and discover novel therapeutic approaches or agents that can efficiently slow down, stop, or even reverse OA. Thus, it is crucial to have a quantitative and reproducible approach to accurately evaluate OA-associated pathological changes in the joint cartilage, synovium, and subchondral bone. Currently, OA severity and progression are primarily assessed using the Osteoarthritis Research Society International (OARSI) or Mankin scoring systems. In spite of the importance of these scoring systems, they are semiquantitative and can be influenced by user subjectivity. More importantly, they fail to accurately evaluate subtle, yet important, changes in the cartilage during the early disease states or early treatment phases. The protocol we describe here uses a computerized and semiautomated histomorphometric software system to establish a standardized, rigorous, and reproducible quantitative methodology for the evaluation of joint changes in OA. This protocol presents a powerful addition to the existing systems and allows for more efficient detection of pathological changes in the joint.
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Affiliation(s)
- William J Pinamont
- Center for Orthopedic Research and Translational Sciences, Department of Orthopedics and Rehabilitation, Pennsylvania State College of Medicine
| | - Natalie K Yoshioka
- Center for Orthopedic Research and Translational Sciences, Department of Orthopedics and Rehabilitation, Pennsylvania State College of Medicine
| | - Gregory M Young
- Center for Orthopedic Research and Translational Sciences, Department of Orthopedics and Rehabilitation, Pennsylvania State College of Medicine
| | - Vengadeshprabhu Karuppagounder
- Center for Orthopedic Research and Translational Sciences, Department of Orthopedics and Rehabilitation, Pennsylvania State College of Medicine
| | - Elijah L Carlson
- Center for Orthopedic Research and Translational Sciences, Department of Orthopedics and Rehabilitation, Pennsylvania State College of Medicine
| | - Adeel Ahmad
- Center for Orthopedic Research and Translational Sciences, Department of Orthopedics and Rehabilitation, Pennsylvania State College of Medicine
| | - Reyad Elbarbary
- Center for Orthopedic Research and Translational Sciences, Department of Orthopedics and Rehabilitation, Pennsylvania State College of Medicine; Department of Biochemistry and Molecular Biology, Pennsylvania State College of Medicine
| | - Fadia Kamal
- Center for Orthopedic Research and Translational Sciences, Department of Orthopedics and Rehabilitation, Pennsylvania State College of Medicine; Department of Pharmacology, Pennsylvania State College of Medicine;
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26
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Wang Y, Argiles-Castillo D, Kane EI, Zhou A, Spratt DE. HECT E3 ubiquitin ligases - emerging insights into their biological roles and disease relevance. J Cell Sci 2020; 133:133/7/jcs228072. [PMID: 32265230 DOI: 10.1242/jcs.228072] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Homologous to E6AP C-terminus (HECT) E3 ubiquitin ligases play a critical role in various cellular pathways, including but not limited to protein trafficking, subcellular localization, innate immune response, viral infections, DNA damage responses and apoptosis. To date, 28 HECT E3 ubiquitin ligases have been identified in humans, and recent studies have begun to reveal how these enzymes control various cellular pathways by catalyzing the post-translational attachment of ubiquitin to their respective substrates. New studies have identified substrates and/or interactors with different members of the HECT E3 ubiquitin ligase family, particularly for E6AP and members of the neuronal precursor cell-expressed developmentally downregulated 4 (NEDD4) family. However, there still remains many unanswered questions about the specific roles that each of the HECT E3 ubiquitin ligases have in maintaining cellular homeostasis. The present Review discusses our current understanding on the biological roles of the HECT E3 ubiquitin ligases in the cell and how they contribute to disease development. Expanded investigations on the molecular basis for how and why the HECT E3 ubiquitin ligases recognize and regulate their intracellular substrates will help to clarify the biochemical mechanisms employed by these important enzymes in ubiquitin biology.
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Affiliation(s)
- Yaya Wang
- College of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an, Shanxi, China 710054.,Gustaf H. Carlson School of Chemistry and Biochemistry, Clark University, 950 Main St., Worcester, MA 01610, USA
| | - Diana Argiles-Castillo
- Gustaf H. Carlson School of Chemistry and Biochemistry, Clark University, 950 Main St., Worcester, MA 01610, USA
| | - Emma I Kane
- Gustaf H. Carlson School of Chemistry and Biochemistry, Clark University, 950 Main St., Worcester, MA 01610, USA
| | - Anning Zhou
- College of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an, Shanxi, China 710054
| | - Donald E Spratt
- Gustaf H. Carlson School of Chemistry and Biochemistry, Clark University, 950 Main St., Worcester, MA 01610, USA
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27
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Chae DK, Park J, Cho M, Ban E, Jang M, Yoo YS, Kim EE, Baik JH, Song EJ. MiR-195 and miR-497 suppress tumorigenesis in lung cancer by inhibiting SMURF2-induced TGF-β receptor I ubiquitination. Mol Oncol 2019; 13:2663-2678. [PMID: 31581360 PMCID: PMC6887584 DOI: 10.1002/1878-0261.12581] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 09/24/2019] [Accepted: 10/01/2019] [Indexed: 12/18/2022] Open
Abstract
SMURF2 is a member of the HECT family of E3 ubiquitin ligases that have important roles as a negative regulator of transforming growth factor‐β (TGF‐β) signaling through ubiquitin‐mediated degradation of TGF‐β receptor I. However, the regulatory mechanism of SMURF2 is largely unknown. In this study, we identified that micro(mi)R‐195 and miR‐497 putatively target SMURF2 using several target prediction databases. Both miR‐195 and miR‐497 bind to the 3′‐UTR of the SMURF2 mRNA and inhibit SMURF2 expression. Furthermore, miR‐195 and miR‐497 regulate SMURF2‐dependent TβRI ubiquitination and cause the activation of the TGF‐β signaling pathway in lung cancer cells. Upregulation of miR‐195 and miR‐497 significantly reduced cell viability and colony formation through the activation of TGF‐β signaling. Interestingly, miR‐195 and miR‐497 also reduced the invasion ability of lung cancer cells when cells were treated with TGF‐β1. Subsequent in vivo studies in xenograft nude mice model revealed that miR‐195 and miR‐497 repress tumor growth. These findings demonstrate that miR‐195 and miR‐497 act as a tumor suppressor by suppressing ubiquitination‐mediated degradation of TGF‐β receptors through SMURF2, and suggest that miR‐195 and miR‐497 are potential therapeutic targets for lung cancer.
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Affiliation(s)
- Dong-Kyu Chae
- Molecular Recognition Research Center, Korea Institute of Science and Technology, Seoul, Korea.,School of Life Sciences and Biotechnology, Korea University, Seoul, Korea
| | - Jinyoung Park
- Molecular Recognition Research Center, Korea Institute of Science and Technology, Seoul, Korea
| | - Moonsoo Cho
- Molecular Recognition Research Center, Korea Institute of Science and Technology, Seoul, Korea.,Division of Bio-Medical Science & Technology, KIST School, Korea University of Science and Technology, Seoul, Korea
| | - Eunmi Ban
- Molecular Recognition Research Center, Korea Institute of Science and Technology, Seoul, Korea
| | - Mihue Jang
- Biomedical Research Institute, Korea Institute of Science and Technology, Seoul, Korea
| | - Young Sook Yoo
- Molecular Recognition Research Center, Korea Institute of Science and Technology, Seoul, Korea
| | - Eunice EunKyeong Kim
- Biomedical Research Institute, Korea Institute of Science and Technology, Seoul, Korea
| | - Ja-Hyun Baik
- School of Life Sciences and Biotechnology, Korea University, Seoul, Korea
| | - Eun Joo Song
- Graduate School of Pharmaceutical Sciences and College of Pharmacy, Ewha Womans University, Seoul, Korea
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28
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Yang C, You D, Huang J, Yang B, Huang X, Ni J. Effects of AURKA‐mediated degradation of SOD2 on mitochondrial dysfunction and cartilage homeostasis in osteoarthritis. J Cell Physiol 2019; 234:17727-17738. [PMID: 30811038 DOI: 10.1002/jcp.28398] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Revised: 01/27/2019] [Accepted: 01/30/2019] [Indexed: 12/21/2022]
Affiliation(s)
- Cheng Yang
- Department of Orthopedics, The Second Xiangya Hospital Central South University Changsha Hunan People's Republic of China
| | - Di You
- Department of Orthopedics, The Second Xiangya Hospital Central South University Changsha Hunan People's Republic of China
| | - Jun Huang
- Department of Orthopedics, The Second Xiangya Hospital Central South University Changsha Hunan People's Republic of China
| | - Bo Yang
- Department of Orthopedics Affiliated Nanhua Hospital, University of South China Hengyang Hunan People's Republic of China
| | - Xianzhe Huang
- Department of Orthopedics, The Second Xiangya Hospital Central South University Changsha Hunan People's Republic of China
| | - Jiangdong Ni
- Department of Orthopedics, The Second Xiangya Hospital Central South University Changsha Hunan People's Republic of China
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29
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TTC3 contributes to TGF-β 1-induced epithelial-mesenchymal transition and myofibroblast differentiation, potentially through SMURF2 ubiquitylation and degradation. Cell Death Dis 2019; 10:92. [PMID: 30696809 PMCID: PMC6351531 DOI: 10.1038/s41419-019-1308-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Revised: 12/28/2018] [Accepted: 01/04/2019] [Indexed: 01/05/2023]
Abstract
Transforming growth factor-β (TGF-β) acts as a key cytokine in epithelial−mesenchymal transition (EMT) and myofibroblast differentiation, which are important for normal tissue repair and fibrotic diseases. Ubiquitylation and proteasomal degradation of TGF-β signaling proteins acts as a regulatory mechanism for the precise control of TGF-β signaling. SMAD-specific ubiquitin E3 ligase (SMAD ubiquitination regulatory factor 2, SMURF2) controls TGF-β signaling proteins including the TGF-β receptor (TGFR) and SMAD2/3. Here, we report that tetratricopeptide repeat domain 3 (TTC3), a ubiquitin E3 ligase, positively regulates TGF-β1-induced EMT and myofibroblast differentiation, through inducing ubiquitylation and proteasomal degradation of SMURF2. In human bronchial epithelial cells (BEAS-2B) and normal human lung fibroblasts, TTC3 knockdown suppressed TGF-β1-induced EMT and myofibroblast differentiation, respectively. Similarly, when TTC3 expression was suppressed, the TGF-β1-stimulated elevation of p-SMAD2, SMAD2, p-SMAD3, and SMAD3 were inhibited. In contrast, overexpression of TTC3 caused both EMT and myofibroblast differentiation in the absence of TGF-β1 treatment. TGF-β1 reduced SMURF2 levels and TTC3 overexpression led to a further decrease in SMURF2 levels, while TTC3 knockdown inhibited TGF-β1-induced SMURF2 reduction. In cell and in vitro ubiquitylation assays demonstrated TTC3-mediated SMURF2 ubiquitylation, and coimmunoprecipitation assays established the binding between SMURF2 and TTC3. TGF-β1-induced TTC3 expression was inhibited by the knockdown of SMAD2 and SMAD3. Finally, Ttc3 mRNA levels were significantly increased and Smurf2 protein levels were significantly decreased in the lungs of mice treated with bleomycin as compared with the lungs of control mice. Collectively, these data suggest that TTC3 may contribute to TGF-β1-induced EMT and myofibroblast differentiation, potentially through SMURF2 ubiquitylation/proteasomal degradation and subsequent inhibition of SMURF2-mediated suppression of SMAD2 and SMAD3, which in turn induces TTC3 expression.
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30
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de Kroon LMG, van den Akker GGH, Brachvogel B, Narcisi R, Belluoccio D, Jenner F, Bateman JF, Little CB, Brama PAJ, Blaney Davidson EN, van der Kraan PM, van Osch GJVM. Identification of TGFβ-related genes regulated in murine osteoarthritis and chondrocyte hypertrophy by comparison of multiple microarray datasets. Bone 2018; 116:67-77. [PMID: 30010080 DOI: 10.1016/j.bone.2018.07.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Revised: 07/10/2018] [Accepted: 07/11/2018] [Indexed: 01/04/2023]
Abstract
OBJECTIVE Osteoarthritis (OA) is a joint disease characterized by progressive degeneration of articular cartilage. Some features of OA, including chondrocyte hypertrophy and focal calcification of articular cartilage, resemble the endochondral ossification processes. Alterations in transforming growth factor β (TGFβ) signaling have been associated with OA as well as with chondrocyte hypertrophy. Our aim was to identify novel candidate genes implicated in chondrocyte hypertrophy during OA pathogenesis by determining which TGFβ-related genes are regulated during murine OA and endochondral ossification. METHODS A list of 580 TGFβ-related genes, including TGFβ signaling pathway components and TGFβ-target genes, was generated. Regulation of these TGFβ-related genes was assessed in a microarray of murine OA cartilage: 1, 2 and 6 weeks after destabilization of the medial meniscus (DMM). Subsequently, genes regulated in the DMM model were studied in two independent murine microarray datasets on endochondral ossification: the growth plate and transient embryonic cartilage (joint development). RESULTS A total of 106 TGFβ-related genes were differentially expressed in articular cartilage of DMM-operated mice compared to sham-control. From these genes, 43 were similarly regulated during chondrocyte hypertrophy in the growth plate or embryonic joint development. Among these 43 genes, 18 genes have already been associated with OA. The remaining 25 genes were considered as novel candidate genes involved in OA pathogenesis and endochondral ossification. In supplementary data of published human OA microarrays we found indications that 15 of the 25 novel genes are indeed regulated in articular cartilage of human OA patients. CONCLUSION By focusing on TGFβ-related genes during OA and chondrocyte hypertrophy in mice, we identified 18 known and 25 new candidate genes potentially implicated in phenotypical changes in chondrocytes leading to OA. We propose that 15 of these candidates warrant further investigation as therapeutic target for OA as they are also regulated in articular cartilage of OA patients.
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Affiliation(s)
- Laurie M G de Kroon
- Department of Rheumatology, Experimental Rheumatology, Radboud University Medical Center, Nijmegen, the Netherlands; Department of Orthopedics, Erasmus MC University Medical Center, Rotterdam, the Netherlands.
| | - Guus G H van den Akker
- Department of Rheumatology, Experimental Rheumatology, Radboud University Medical Center, Nijmegen, the Netherlands.
| | - Bent Brachvogel
- Center for Biochemistry, Medical Faculty, University of Cologne, Cologne, Germany; Department of Pediatrics and Adolescent Medicine, Experimental Neonatology, Medical Faculty, University of Cologne, Cologne, Germany.
| | - Roberto Narcisi
- Department of Orthopedics, Erasmus MC University Medical Center, Rotterdam, the Netherlands.
| | - Daniele Belluoccio
- Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, Victoria, Australia.
| | - Florien Jenner
- Equine University Hospital, University of Veterinary Medicine, Vienna, Austria.
| | - John F Bateman
- Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, Victoria, Australia.
| | - Christopher B Little
- Raymond Purves Bone and Joint Research Laboratories, Kolling Institute of Medical Research, University of Sydney, St Leonards, New South Wales, Australia.
| | - Pieter A J Brama
- Veterinary Clinical Sciences, School of Veterinary Medicine, University College Dublin, Dublin, Ireland.
| | - Esmeralda N Blaney Davidson
- Department of Rheumatology, Experimental Rheumatology, Radboud University Medical Center, Nijmegen, the Netherlands.
| | - Peter M van der Kraan
- Department of Rheumatology, Experimental Rheumatology, Radboud University Medical Center, Nijmegen, the Netherlands.
| | - Gerjo J V M van Osch
- Department of Orthopedics, Erasmus MC University Medical Center, Rotterdam, the Netherlands; Department of Otorhinolaryngology, Erasmus MC University Medical Center, Rotterdam, the Netherlands.
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31
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Hong JQ, Wang YX, Li SH, Jiang GY, Hu B, Yang YT, Meng JH, Yan SG. Association between SMAD3 gene polymorphisms and osteoarthritis risk: a systematic review and meta-analysis. J Orthop Surg Res 2018; 13:232. [PMID: 30208919 PMCID: PMC6134766 DOI: 10.1186/s13018-018-0939-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Accepted: 09/04/2018] [Indexed: 12/30/2022] Open
Abstract
Objective Several studies have been performed to investigate the association between SMAD3 gene polymorphism and osteoarthritis (OA), but the results were inconclusive. This study aims to determine whether SMAD3 polymorphism is associated with risk of OA. Method A comprehensive literature search in PubMed, Embase, and ISI Web of Science for relevant studies was performed. After extracting data from eligible studies, we chose the fixed or random effect model according to the heterogeneity test. Estimation of publication bias and sensitivity analysis were conducted to confirm the stability of this meta-analysis. Results In total, 10 studies from 6 articles with 5093 OA patients and 5699 controls were enrolled in this meta-analysis. The combined results revealed significant association between SMAD3 rs12901499 polymorphism and the risk of OA (allele model: OR 1.21, 95% CI 1.07–1.38). Subgroup analysis revealed that G allele increased the risk of OA in Caucasians, but not in Asians (allele model: Caucasians: OR 1.31, 95% CI 1.18–1.44; Asians: OR 1.24, 95% CI 0.95–1.61). And the pooled results revealed significant association between SMAD3 rs12901499 polymorphism and both knee and hip OA (knee OA: OR 1.18, 95% CI 1.04–1.34; hip OA: OR 1.31, 95% CI 1.18–1.44). Conclusion The current meta-analysis revealed that the G variant of SMAD3 rs12901499 polymorphism increased the risk of OA in Caucasians. Further well-designed studies with larger sample size in different ethnic populations are required to confirm these results. Electronic supplementary material The online version of this article (10.1186/s13018-018-0939-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jian-Qiao Hong
- Department of Orthopaedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, No.88 Jiefang Road, Hangzhou, 310009, People's Republic of China
| | - Yang-Xin Wang
- Department of Orthopaedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, No.88 Jiefang Road, Hangzhou, 310009, People's Republic of China
| | - Si-Hao Li
- Department of Orthopaedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, No.88 Jiefang Road, Hangzhou, 310009, People's Republic of China
| | - Guang-Yao Jiang
- Department of Orthopaedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, No.88 Jiefang Road, Hangzhou, 310009, People's Republic of China
| | - Bin Hu
- Department of Orthopaedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, No.88 Jiefang Road, Hangzhou, 310009, People's Republic of China
| | - Yu-Te Yang
- Department of Orthopaedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, No.88 Jiefang Road, Hangzhou, 310009, People's Republic of China
| | - Jia-Hong Meng
- Department of Orthopaedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, No.88 Jiefang Road, Hangzhou, 310009, People's Republic of China
| | - Shi-Gui Yan
- Department of Orthopaedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, No.88 Jiefang Road, Hangzhou, 310009, People's Republic of China.
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32
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Xie Z, Zhao Z, Yang X, Pei L, Luo H, Ni Q, Li B, Qi Y, Tie K, Magdalou J, Chen L, Wang H. Prenatal nicotine exposure intergenerationally programs imperfect articular cartilage via histone deacetylation through maternal lineage. Toxicol Appl Pharmacol 2018; 352:107-118. [DOI: 10.1016/j.taap.2018.03.018] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2017] [Revised: 02/15/2018] [Accepted: 03/14/2018] [Indexed: 02/07/2023]
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33
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Wu Q, Mathers C, Wang EW, Sheng S, Wenkert D, Huang JH. TGF-β Initiates β-Catenin-Mediated CTGF Secretory Pathway in Old Bovine Nucleus Pulposus Cells: A Potential Mechanism for Intervertebral Disc Degeneration. JBMR Plus 2018; 3:e10069. [PMID: 30828686 PMCID: PMC6383704 DOI: 10.1002/jbm4.10069] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Revised: 05/07/2018] [Accepted: 06/12/2018] [Indexed: 01/17/2023] Open
Abstract
We have recently demonstrated that overexpression of Smurf2 under the control of type II collagen alpha 1 (Col2a1) promoter induces an intervertebral disc degeneration phenotype in Col2a1‐Smurf2 transgenic mice. The chondrocyte‐like cells that express type II collagen and Smurf2 in the transgenic mouse discs are prone to degenerate. However, how the chondrocyte‐like cells contribute to disc degeneration is not known. Here, we utilized primary old bovine nucleus pulposus (NP) cells as substitutes for the chondrocyte‐like cells in Col2a1‐Smurf2 transgenic mouse discs to identify mechanism. We found that 35% of the cells were senescent; TGF‐β treatment of the cells induced a rapid moderate accumulation of β‐catenin, which interacted with connective tissue growth factor (CTGF/CCN2) in the cytoplasm and recruited it to the membrane for secretion. The TGF‐β‐initiated β‐catenin‐mediated CTGF secretory cascade did not occur in primary young bovine NP cells; however, when Smurf2 was overexpressed in young bovine NP cells, the cells became senescent and allowed this cascade to occur. These results suggest that Smurf2‐induced disc degeneration in Col2a1‐Smurf2 transgenic mice occurs through activation of CTGF secretory pathway in senescent disc cells. © 2018 The Authors JBMR Plus published by Wiley Periodicals, Inc. on behalf of American Society for Bone and Mineral Research.
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Affiliation(s)
- Qiuqian Wu
- Department of Neurosurgery Institute for Translational Medicine Baylor Scott & White Health Temple TX USA
| | - Chun Mathers
- Department of Neurosurgery Institute for Translational Medicine Baylor Scott & White Health Temple TX USA
| | - Ernest W Wang
- Department of Neurosurgery Institute for Translational Medicine Baylor Scott & White Health Temple TX USA
| | - Sen Sheng
- Department of Neurosurgery Institute for Translational Medicine Baylor Scott & White Health Temple TX USA
| | - David Wenkert
- Division of Endocrinology Baylor Scott & White Health Temple TX USA
| | - Jason H Huang
- Department of Neurosurgery Baylor Scott & White Health Temple TX USA
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34
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van der Kraan PM. Differential Role of Transforming Growth Factor-beta in an Osteoarthritic or a Healthy Joint. J Bone Metab 2018; 25:65-72. [PMID: 29900155 PMCID: PMC5995759 DOI: 10.11005/jbm.2018.25.2.65] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Accepted: 05/26/2018] [Indexed: 12/24/2022] Open
Abstract
Transforming growth factor-β (TGF-β) is a cytokine that plays an important role in both normal joints and joints affected by osteoarthritis (OA), the most common joint disease. However, the role of this pleiotropic cytokine in a normal healthy joint is very different from its role in an OA joint. In a normal synovial joint, active TGF-β is only present after joint loading and only for a short period. In contrast, permanent and high levels of active TGF-β are detected in OA joints. Due to this difference in levels and exposure period of joint cells to active TGF-β, the function of TGF-β is strikingly different in normal and OA joints. The consequences of this difference in TGF-β levels on joint homeostasis and pathological changes in OA joints are discussed in this review.
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Affiliation(s)
- Peter M. van der Kraan
- Department of Rheumatology, Experimental Rheumatology, Radboud University Medical Center, Nijmegen, Netherlands
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35
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Borroni AP, Emanuelli A, Shah PA, Ilić N, Apel-Sarid L, Paolini B, Manikoth Ayyathan D, Koganti P, Levy-Cohen G, Blank M. Smurf2 regulates stability and the autophagic-lysosomal turnover of lamin A and its disease-associated form progerin. Aging Cell 2018; 17. [PMID: 29405587 PMCID: PMC5847874 DOI: 10.1111/acel.12732] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/06/2018] [Indexed: 12/19/2022] Open
Abstract
A‐lamins, encoded by the LMNA gene, are major structural components of the nuclear lamina coordinating essential cellular processes. Mutations in the LMNA gene and/or alterations in its expression levels have been linked to a distinct subset of human disorders, collectively known as laminopathies, and to cancer. Mechanisms regulating A‐lamins are mostly obscure. Here, we identified E3 ubiquitin ligase Smurf2 as a physiological regulator of lamin A and its disease‐associated mutant form progerin (LAΔ50), whose expression underlies the development of Hutchinson‐Gilford progeria syndrome (HGPS), a devastating premature aging syndrome. We show that Smurf2 directly binds, ubiquitinates, and negatively regulates the expression of lamin A and progerin in Smurf2 dose‐ and E3 ligase‐dependent manners. Overexpression of catalytically active Smurf2 promotes the autophagic–lysosomal breakdown of lamin A and progerin, whereas Smurf2 depletion increases lamin A levels. Remarkably, acute overexpression of Smurf2 in progeria fibroblasts was able to significantly reduce the nuclear deformability. Furthermore, we demonstrate that the reciprocal relationship between Smurf2 and A‐lamins is preserved in different types of mouse and human normal and cancer tissues. These findings establish Smurf2 as an essential regulator of lamin A and progerin and lay a foundation for evaluating the efficiency of progerin clearance by Smurf2 in HGPS, and targeting of the Smurf2–lamin A axis in age‐related diseases such as cancer.
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Affiliation(s)
- Aurora Paola Borroni
- Laboratory of Molecular and Cellular Cancer Biology; Azrieli Faculty of Medicine; Bar-Ilan University; Safed Israel
| | - Andrea Emanuelli
- Laboratory of Molecular and Cellular Cancer Biology; Azrieli Faculty of Medicine; Bar-Ilan University; Safed Israel
| | - Pooja Anil Shah
- Laboratory of Molecular and Cellular Cancer Biology; Azrieli Faculty of Medicine; Bar-Ilan University; Safed Israel
| | - Nataša Ilić
- Laboratory of Molecular and Cellular Cancer Biology; Azrieli Faculty of Medicine; Bar-Ilan University; Safed Israel
| | - Liat Apel-Sarid
- Department of Pathology; The Galilee Medical Center; Nahariya Israel
| | - Biagio Paolini
- Department of Pathology and Laboratory Medicine; IRCCS Fondazione; Istituto Nazionale dei Tumori; Milan Italy
| | - Dhanoop Manikoth Ayyathan
- Laboratory of Molecular and Cellular Cancer Biology; Azrieli Faculty of Medicine; Bar-Ilan University; Safed Israel
| | - Praveen Koganti
- Laboratory of Molecular and Cellular Cancer Biology; Azrieli Faculty of Medicine; Bar-Ilan University; Safed Israel
| | - Gal Levy-Cohen
- Laboratory of Molecular and Cellular Cancer Biology; Azrieli Faculty of Medicine; Bar-Ilan University; Safed Israel
| | - Michael Blank
- Laboratory of Molecular and Cellular Cancer Biology; Azrieli Faculty of Medicine; Bar-Ilan University; Safed Israel
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Zhong F, Lu J, Wang Y, Song H. Genetic variation of SMAD3 is associated with hip osteoarthritis in a Chinese Han population. J Int Med Res 2018; 46:1178-1186. [PMID: 29310478 PMCID: PMC5972263 DOI: 10.1177/0300060517745186] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Objective This study was performed to investigate the association between genetic variation in SMAD3 and hip osteoarthritis (OA) in a Chinese Han population. Methods The frequency of two single nucleotide polymorphisms of SMAD3, rs1470002 and rs12901499, was examined in 500 patients with hip OA and 1080 healthy controls in a Chinese Han population. Further analysis was performed according to sex and age. Results We detected statistically significant differences in the allele frequency and genotype between the hip OA and healthy control groups. The frequency of the GA+GG and GA genotypes of rs12901499 and the G variant were much higher in patients with hip OA than in healthy controls. This association was also present when the participants were stratified by sex and age. However, there was no significant association between the risk of hip OA and the presence of rs1470002 GA, AA, or GA+AA genotypes, even after sex- and age-stratified analysis. Conclusions The SMAD3 SNP rs12901499 GA genotype and G variant may increase the risk of hip OA in Chinese Han patients.
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Affiliation(s)
- Fuhua Zhong
- 1 Department of Orthopedics, 414282 Tongde Hospital of Zhejiang Province , Zhejiang, CN, P.R. China
| | - Jianwei Lu
- 1 Department of Orthopedics, 414282 Tongde Hospital of Zhejiang Province , Zhejiang, CN, P.R. China
| | - Yangxin Wang
- 2 Department of Orthopedic Surgery, Second Affiliated Hospital's Campus in Binjiang District, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, CN, P.R. China
| | - Hongpu Song
- 1 Department of Orthopedics, 414282 Tongde Hospital of Zhejiang Province , Zhejiang, CN, P.R. China
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Wu Q, Huang JH. Intervertebral Disc Aging, Degeneration, and Associated Potential Molecular Mechanisms. ACTA ACUST UNITED AC 2017; 1. [PMID: 29911686 DOI: 10.19080/jhnss.2017.01.555569] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Intervertebral disc degeneration is a major cause of neck and back pain, a very common clinical problem. However, no effective treatment is available, which is largely due to the lack of understanding of molecular mechanisms underlying disc degeneration. Here, we briefly described the process of intervertebral disc aging and degeneration and summarized major findings in molecular signaling pathways implicated in disc aging and degeneration.
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Affiliation(s)
- Qiuqian Wu
- Department of Neurosurgery, Baylor Scott and White Health, 5701 Airport Road, Temple, TX 76502
| | - Jason H Huang
- Department of Neurosurgery, Baylor Scott and White Health, 5701 Airport Road, Temple, TX 76502
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Song Y, Du Z, Yang Q, Ren M, Wang Q, Chen G, Zhao H, Li Z, Zhang G. Variants of GSK3β and SFRP4 genes in Wnt signaling were not associated with osteonecrosis of the femoral head. Oncotarget 2017; 8:72381-72388. [PMID: 29069795 PMCID: PMC5641138 DOI: 10.18632/oncotarget.20393] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Accepted: 08/08/2017] [Indexed: 11/25/2022] Open
Abstract
Genome-wide association studies have identified that the gene variants in Wnt signaling associate with bone mineral density and fracture risk but the effects of the variants on the development of osteonecrosis of the femoral head (ONFH) have been unclear. Here, we analyzed the polymorphisms of 4 variants in GSK3β and SFRP4 genes of Wnt signaling and their association with the development of ONFH through Mass ARRAY® platform in 200 ONFH patients and 177controls in Chinese population. Our results showed that the genotypes and allele frequencies of all variants detected in SFRP4 and GSK3β genes were not significantly different between patients and controls (p > 0.05); the correlation analysis between the 4 variants genotypes and gender, age at onset, etiological classification, unilateral or bilateral hip lesions, and clinical stages of ONFH, respectively, did not confirm significant association (p > 0.05) although age at onset in the minor homozygous(CC) carriers of SFRP4 rs1052981 (T/C) was a statistically younger tendency than that of the major homozygous (TT) or heterozygous (TC) of the SNP (p = 0.051); moreover, all haplotypes analyzed and their association with the clinical phenotypes of ONFH were also shown no statistical significance (p > 0.05).These results suggest that the 4 variants analyzed by this study in GSK3β and SFRP4 genes of Wnt signaling pathway are unlikely to be associated with susceptibility to ONFH.
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Affiliation(s)
- Yang Song
- Department of Orthopedics of Second Clinical College of Jilin University, Changchun, 130041, China.,The Engineering Research Centre of Molecular Diagnosis and Cell Treatment for Metabolic Bone Diseases of Jilin Province, Changchun, 130041, China
| | - Zhenwu Du
- Department of Orthopedics of Second Clinical College of Jilin University, Changchun, 130041, China.,Research Centre of Second Clinical College of Jilin University, Changchun, 130041, China.,The Engineering Research Centre of Molecular Diagnosis and Cell Treatment for Metabolic Bone Diseases of Jilin Province, Changchun, 130041, China
| | - Qiwei Yang
- Research Centre of Second Clinical College of Jilin University, Changchun, 130041, China.,The Engineering Research Centre of Molecular Diagnosis and Cell Treatment for Metabolic Bone Diseases of Jilin Province, Changchun, 130041, China
| | - Ming Ren
- Department of Orthopedics of Second Clinical College of Jilin University, Changchun, 130041, China.,The Engineering Research Centre of Molecular Diagnosis and Cell Treatment for Metabolic Bone Diseases of Jilin Province, Changchun, 130041, China
| | - Qingyu Wang
- Research Centre of Second Clinical College of Jilin University, Changchun, 130041, China.,The Engineering Research Centre of Molecular Diagnosis and Cell Treatment for Metabolic Bone Diseases of Jilin Province, Changchun, 130041, China
| | - Gaoyang Chen
- Research Centre of Second Clinical College of Jilin University, Changchun, 130041, China.,The Engineering Research Centre of Molecular Diagnosis and Cell Treatment for Metabolic Bone Diseases of Jilin Province, Changchun, 130041, China
| | - Haiyue Zhao
- Research Centre of Second Clinical College of Jilin University, Changchun, 130041, China.,The Engineering Research Centre of Molecular Diagnosis and Cell Treatment for Metabolic Bone Diseases of Jilin Province, Changchun, 130041, China
| | - Zhaoyan Li
- Department of Orthopedics of Second Clinical College of Jilin University, Changchun, 130041, China.,The Engineering Research Centre of Molecular Diagnosis and Cell Treatment for Metabolic Bone Diseases of Jilin Province, Changchun, 130041, China
| | - Guizhen Zhang
- Department of Orthopedics of Second Clinical College of Jilin University, Changchun, 130041, China.,Research Centre of Second Clinical College of Jilin University, Changchun, 130041, China.,The Engineering Research Centre of Molecular Diagnosis and Cell Treatment for Metabolic Bone Diseases of Jilin Province, Changchun, 130041, China
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Wang YJ, Shen M, Wang S, Wen X, Han XR, Zhang ZF, Li H, Wang F, Wu DM, Lu J, Zheng YL. Inhibition of the TGF-β1/Smad signaling pathway protects against cartilage injury and osteoarthritis in a rat model. Life Sci 2017; 189:106-113. [PMID: 28939526 DOI: 10.1016/j.lfs.2017.09.022] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Revised: 09/16/2017] [Accepted: 09/19/2017] [Indexed: 01/15/2023]
Abstract
Transforming growth factor-β1 (TGF-β1) in osteoblastic cells triggers pathological changes observed in osteoarthritis (OA). Thus, we hypothesized that the inhibition of the TGF-β1/Smad signaling pathway could act to protect against cartilage injury in rats with OA. After establishment of rat models induced by papain and L-cysteine, rats were subsequently assigned into the TβRI inhibitors, normal control (NC) and OA model groups. RT-qPCR and western blotting were performed to determine mRNA and protein expressions of TGFβ1, Smad2, Smad3 and Activin receptor-like kinase 5 (ALK5), respectively. Immunofluorescence staining was used to detect the expression of collagen X (COLX). Immunohistochemical staining was used to determine the expression of the specific transcription factor Osterix as well as TGF-β1 related factors. Increased expression levels of TGFβ1, Smad2, Smad3 and ALK5in the OA model group were higher than those in the TβRI inhibitors group. Compared with the NC group, the OA model groups exhibited elevated expressions of TGF-β1, p-Smad2/3 and ALK5 in the TGF-β1 signaling pathway, and elevated numbers of COLX and Osterix positive cells. The rats in the TβRI inhibitors group had decreased expressions of p-Smad2/3 and ALK5, as well as decreased COLX and Osterix positive cells when compared with OA model group. However, these levels were still higher than that of the NC group. Our findings suggested that up-regulation of TGF-β1 inhibited the TGF-β1/Smad signaling pathway acting to alleviate OA, thus highlighting the potential of the TGF-β1/Smad signaling pathway as a therapeutic target for treatment of OA.
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Affiliation(s)
- Yong-Jian Wang
- Key Laboratory for Biotechnology on Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou 221116, PR China
| | - Min Shen
- Key Laboratory for Biotechnology on Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou 221116, PR China
| | - Shan Wang
- Key Laboratory for Biotechnology on Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou 221116, PR China
| | - Xin Wen
- Key Laboratory for Biotechnology on Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou 221116, PR China
| | - Xin-Rui Han
- Key Laboratory for Biotechnology on Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou 221116, PR China
| | - Zi-Feng Zhang
- Key Laboratory for Biotechnology on Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou 221116, PR China
| | - Hui Li
- Department of Joint Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang 050051, PR China
| | - Fei Wang
- Department of Joint Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang 050051, PR China
| | - Dong-Mei Wu
- Key Laboratory for Biotechnology on Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou 221116, PR China.
| | - Jun Lu
- Key Laboratory for Biotechnology on Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou 221116, PR China.
| | - Yuan-Lin Zheng
- Key Laboratory for Biotechnology on Medicinal Plants of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou 221116, PR China.
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Wu Q, Huang JH. Ectopic expression of Smurf2 and acceleration of age-related intervertebral disc degeneration in a mouse model. J Neurosurg Spine 2017; 27:116-126. [DOI: 10.3171/2016.11.spine16901] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECTIVELumbar intervertebral disc degeneration, an age-related process, is a major cause of low-back pain. Although low-back pain is a very common clinical problem in the aging population, no effective treatment is available, largely owing to lack of understanding of the molecular mechanisms underlying disc degeneration. The goal of this study was to characterize how ectopic expression of Smurf2 driven by the collagen Type II alpha 1 (Col2a1) promoter alters disc cell phenotype and associated cellular events, matrix synthesis, and gene expression during disc degeneration in mice.METHODSTo characterize how ectopic expression of Smurf2 in Col2a1-promoter working cells affects the disc degeneration process, the authors performed histological and immunohistochemical analysis of lumbar spine specimens harvested from wild-type (WT) and Col2a1-Smurf2 transgenic mice at various ages (n ≥ 6 in each age group). To elucidate the molecular mechanism underlying Smurf2-mediated disc degeneration, the authors isolated cells from WT and Col2a1-Smurf2 transgenic lumbar intervertebral discs and performed Western blot and real-time RT-PCR (reverse transcription polymerase chain reaction) to examine the protein and mRNA levels of interesting targets.RESULTSThe authors demonstrated that approximately 30% of WT mice at 10–12 months of age had started to show disc degeneration and that the disc degeneration process was accelerated by 3–6 months in Col2a1-Smurf2 transgenic mice. Chondrocyte-like cell proliferation, maturation, and fibrotic tissue formation in the inner annulus were often accompanied by fibroblast-to-chondrocyte differentiation in the outer annulus in transgenic discs. The chondrocyte-like cells in transgenic discs expressed higher levels of connective tissue growth factor (CTGF) than were expressed in WT counterparts.CONCLUSIONSThe findings that ectopic expression of Smurf2 driven by the Col2a1 promoter accelerated disc degeneration in Col2a1-Smurf2 transgenic mice, and that higher levels of CTGF protein and mRNA were present in Col2a1-Smurf2 transgenic discs, indicate that Smurf2 accelerates disc degeneration via upregulation of CTGF.
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Sharma AC, Srivastava RN, Srivastava SR, Parmar D, Singh A, Raj S. Association between Single Nucleotide Polymorphisms of SMAD3 and BMP5 with the Risk of Knee Osteoarthritis. J Clin Diagn Res 2017; 11:GC01-GC04. [PMID: 28764194 DOI: 10.7860/jcdr/2017/22371.10073] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2016] [Accepted: 03/09/2017] [Indexed: 11/24/2022]
Abstract
INTRODUCTION The role of genetic factors influencing osteoarthritis (OA) susceptibility is well documented and several candidate genes have been identified to be associated with it. Among these genes are Bone Morphogenetic Protein 5 (BMP5) and Smad family member 3 (SMAD3), all involved in Transforming Growth Factor (TGF) signaling pathway. The knee is the commonly affected joint, and knee OA has an especially high prevalence in Asian population. AIM To investigate associations between Single Nucleotide Polymorphisms (SNPs) rs12901499 in SMAD3 and rs921126 in the BMP5 gene with knee OA susceptibility in and around Lucknow, Uttar Pradesh, India. MATERIALS AND METHODS SNPs rs12901499 in SMAD3 and rs921126 in BMP5 were genotyped in patients with knee OA and age- sex matched OA-free controls from our population. A total of 450 patients with knee OA and 458 controls were enrolled in the study. Venous blood samples were obtained from all cases as well as controls for PCR-RFLP (Polymerase Chain Reaction- Restriction Fragment Length Polymorphism). Data was collected and entered in excel sheets. Statistical analyses of the data were performed using statistical software package SPSS version 16.0. Chi-square, Student's t-test and logistic regression tests were used to analyse the data. RESULTS GA and GG genotypes of both SNPs (rs12901499 and rs921126), and variant G, were associated with a significantly increased risk of knee OA. A significantly increased risk of knee OA was associated with the genotype GG and GA of rs12901499 (p < 0.03 and p <0.004 respectively) and rs921126 (p< 0.0001 and p<0.001 respectively) compared with the AA genotype. In addition, those bearing at least one G allele (GG + GA) had a significantly increased risk of knee OA compared with those without the G allele (AA) in rs921126 (p< 0.0001). However, in rs12901499, significant association with the risk of knee OA was not found (p<0.4). On age and gender based stratification, the association between the risk of OA and rs921126 GG mutant compared with AA homozygotes was strong in both gender (adjusted OR= 2.93 for male and 2.25 for female) and in those aged >55 years (adjusted OR= 3.4), similarly in rs12901499, GG mutant compared with AA homozygote was strong in female (adjusted OR= 1.5) and in those aged >55 years (adjusted OR= 1.5). CONCLUSION The results showed that both in SMAD3 rs12901499 and BMP5 921126, G allele is significantly associated with knee OA. A to G change and variant G genotype may contribute to knee OA risk in our study population of Lucknow.
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Affiliation(s)
- Amar Chandra Sharma
- PhD Scholar, Department of Orthopaedic Surgery, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - Rajeshwar Nath Srivastava
- Professor, Department of Orthopaedic Surgery, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - Sudeepti Ratan Srivastava
- PhD Scholar, Department of Orthopaedic Surgery, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - Devendra Parmar
- Senior Scientist, Developmental Toxicology Division, Indian Institute of Toxicology Research, Lucknow, Uttar Pradesh, India
| | - Ajai Singh
- Professor, Department of Orthopaedic Surgery, King George's Medical University, Lucknow, Uttar Pradesh, India
| | - Saloni Raj
- MBBS Intern, Department of Orthopaedic Surgery, King George's Medical University, Lucknow, Uttar Pradesh, India
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Tamamura Y, Katsube K, Mera H, Itokazu M, Wakitani S. Irx3 and Bmp2 regulate mouse mesenchymal cell chondrogenic differentiation in both a Sox9-dependent and -independent manner. J Cell Physiol 2017; 232:3317-3336. [PMID: 28059449 DOI: 10.1002/jcp.25776] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Revised: 12/31/2016] [Accepted: 01/05/2017] [Indexed: 01/22/2023]
Abstract
Sox9, a master regulator of cartilage development, controls the cell fate decision to differentiate from mesenchymal to chondrogenic cells. In addition, Sox9 regulates the proliferation and differentiation of chondrocytes, as well as the production of cartilage-specific proteoglycans. The existence of Sox9-independent mechanisms in cartilage development remains to be determined. Here, we attempted to identify genes involved in such putative mechanisms via microarray analysis using a mouse chondrogenic cell line, N1511. We first focused on transcription factors that exhibited upregulated expression following Bmp2 treatment, which was not altered by subsequent treatment with Sox9 siRNA. Among these, we selected positive regulators for chondrogenesis and identified Iroquois-related homeobox 3 (Irx3) as one of the candidate genes. Irx3 expression gradually increased with chondrocyte terminal differentiation in a reciprocal manner to Sox9 expression, and promoted the chondrogenic differentiation of mesenchymal cells upon Bmp2 treatment. Furthermore, Irx3 partially rescued impaired chondrogenesis by upregulating the expression of epiphycan and lumican under reduced Sox9 expression. Finally, Irx3 was shown to act in concert with Bmp2 signaling to activate the p38 MAPK pathway, which in turn stimulated Sox9 expression, as well as the expression of epiphycan and lumican in a Sox9-independent manner. These results indicate that Irx3 represents a novel chondrogenic factor of mesenchymal cells, acts synergistically with Bmp2-mediated signaling, and regulates chondrogenesis independent of the transcriptional machinery associated with Sox9-mediated regulation.
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Affiliation(s)
- Yoshihiro Tamamura
- School of Health and Sports Science, Mukogawa Women's University, Nishinomiya, Japan
| | - Kenichi Katsube
- Faculty of Human Care, Department of Nursing Science, Tohto College of Health Sciences, Saitama, Japan
| | - Hisashi Mera
- School of Health and Sports Science, Mukogawa Women's University, Nishinomiya, Japan
| | - Maki Itokazu
- School of Health and Sports Science, Mukogawa Women's University, Nishinomiya, Japan.,Department of Orthopedic Surgery, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Shigeyuki Wakitani
- School of Health and Sports Science, Mukogawa Women's University, Nishinomiya, Japan
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Liu J, Li X, Zhang H, Gu R, Wang Z, Gao Z, Xing L. Ubiquitin E3 ligase Itch negatively regulates osteoblast function by promoting proteasome degradation of osteogenic proteins. Bone Joint Res 2017; 6:154-161. [PMID: 28298321 PMCID: PMC5376659 DOI: 10.1302/2046-3758.63.bjr-2016-0237.r1] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Accepted: 01/17/2017] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVES Ubiquitin E3 ligase-mediated protein degradation regulates osteoblast function. Itch, an E3 ligase, affects numerous cell functions by regulating ubiquitination and proteasomal degradation of related proteins. However, the Itch-related cellular and molecular mechanisms by which osteoblast differentiation and function are elevated during bone fracture repair are as yet unknown. METHODS We examined the expression levels of E3 ligases and NF-κB members in callus samples during bone fracture repair by quantitative polymerase chain reaction (qPCR) and the total amount of ubiquitinated proteins by Western blot analysis in wild-type (WT) mice. The expression levels of osteoblast-associated genes in fracture callus from Itch knockout (KO) mice and their WT littermates were examined by qPCR. The effect of NF-κB on Itch expression in C2C12 osteoblast cells was determined by a chromatin immunoprecipitation (ChIP) assay. RESULTS The expression levels of WW Domain Containing E3 Ubiquitin Protein Ligase 1 (Wwp1), SMAD Specific E3 Ubiquitin Protein Ligase 1 (Smurf1), SMAD Specific E3 Ubiquitin Protein Ligase 2 (Smurf2) and Itch were all significantly increased in the fracture callus of WT mice, which was associated with elevated expression of NF-κB members and total ubiquitinated proteins. Callus tissue isolated from Itch KO mice expressed higher levels of osteoblast-associated genes, including Runx2, a positive regulator of osteoblast differentiation, but osteoclast-associated genes were not increased. Both NF-κB RelA and RelB proteins were found to bind to the NF-κB binding site in the mouse Itch promoter. CONCLUSIONS Our findings indicate that Itch depletion may have a strong positive effect on osteoblast differentiation in fracture callus. Thus, ubiquitin E3 ligase Itch could be a potential target for enhancing bone fracture healing.Cite this article: J. Liu, X. Li, H. Zhang, R. Gu, Z. Wang, Z. Gao, L. Xing. Ubiquitin E3 ligase Itch negatively regulates osteoblast function by promoting proteasome degradation of osteogenic proteins. Bone Joint Res 2017;6:154-161. DOI: 10.1302/2046-3758.63.BJR-2016-0237.R1.
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Affiliation(s)
- J Liu
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, 126 Xiantai Boulevard, Changchun, Jilin 130033, China
| | - X Li
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Centre, 601 Elmwood Ave, Rochester, NY 14642, USA
| | - H Zhang
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Centre, 601 Elmwood Ave, Rochester, NY 14642, USA
| | - R Gu
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, 126 Xiantai Boulevard, Changchun, Jilin 130033, China
| | - Z Wang
- Fourth Hospital of Hebei Medical University, 12 Jiankang Road, Shijiazhuang 050011, China
| | - Z Gao
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, 126 Xiantai Boulevard, Changchun, Jilin 130033, China
| | - L Xing
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Centre, 601 Elmwood Ave, Rochester, NY 14642, USA
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Kim HE, Rhee J, Park S, Yang J, Chun JS. Upregulation of Atrogin-1/FBXO32 is not necessary for cartilage destruction in mouse models of osteoarthritis. Osteoarthritis Cartilage 2017; 25:397-400. [PMID: 27480933 DOI: 10.1016/j.joca.2016.07.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2016] [Revised: 07/09/2016] [Accepted: 07/13/2016] [Indexed: 02/02/2023]
Abstract
OBJECTIVE In a preliminary study, we found that recently identified catabolic regulators of osteoarthritis (OA), including hypoxia-inducible factor (HIF)-2α and members of the zinc-ZIP8-MTF1 axis, upregulate the E3 ubiquitin ligase, Atrogin-1 (encoded by Fbxo32), in chondrocytes. As the ubiquitination/proteasomal degradation pathways are tightly regulated to modulate the expression of catabolic factors in chondrocytes, we examined the in vivo functions of Atrogin-1 in mouse models of OA. METHODS The mRNA and protein levels of Atrogin-1 and other regulators of OA were determined in primary cultured mouse chondrocytes, OA human cartilage, and OA cartilage from wild-type (WT) and Fbxo32-knockout (KO) mice subjected to destabilization of the medial meniscus or intra-articular (IA) injection of adenoviruses expressing HIF-2α (Ad-Epas1), ZIP8 (Ad-Zip8), or Atrogin-1 (Ad-Fbxo32). The effect of Atrogin-1 overexpression on the cartilage of WT mice was examined by IA injection of Ad-Fbxo32. RESULTS Atrogin-1 mRNA levels in chondrocytes were markedly increased by treatment with interleukin-1β, HIF-2α, and members of the zinc-ZIP8-MTF1 axis. Atrogin-1 protein levels were also increased in OA cartilage from humans and various mouse OA models. However, the forced overexpression of Atrogin-1 in chondrocytes did not modulate the expression of cartilage matrix molecules or matrix-degrading enzymes. Moreover, overexpression of Atrogin-1 in the mouse joint tissues failed to cause OA pathogenesis, and Fbxo32 knockout failed to affect post-traumatic OA cartilage destruction in mice. CONCLUSIONS Although Atrogin-1 is upregulated in OA cartilage, overexpression of Atrogin-1 in the joint tissues or knockout of Fbxo32 does not affect OA cartilage destruction in mice.
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Affiliation(s)
- H-E Kim
- School of Life Sciences, Gwangju Institute of Science and Technology, Gwangju 61005, Republic of Korea
| | - J Rhee
- School of Life Sciences, Gwangju Institute of Science and Technology, Gwangju 61005, Republic of Korea
| | - S Park
- School of Life Sciences, Gwangju Institute of Science and Technology, Gwangju 61005, Republic of Korea
| | - J Yang
- School of Life Sciences, Gwangju Institute of Science and Technology, Gwangju 61005, Republic of Korea
| | - J-S Chun
- School of Life Sciences, Gwangju Institute of Science and Technology, Gwangju 61005, Republic of Korea.
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SMURF2 regulates bone homeostasis by disrupting SMAD3 interaction with vitamin D receptor in osteoblasts. Nat Commun 2017; 8:14570. [PMID: 28216630 PMCID: PMC5321737 DOI: 10.1038/ncomms14570] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Accepted: 01/10/2017] [Indexed: 01/17/2023] Open
Abstract
Coordination between osteoblasts and osteoclasts is required for bone health and homeostasis. Here we show that mice deficient in SMURF2 have severe osteoporosis in vivo. This low bone mass phenotype is accompanied by a pronounced increase in osteoclast numbers, although Smurf2-deficient osteoclasts have no intrinsic alterations in activity. Smurf2-deficient osteoblasts display increased expression of RANKL, the central osteoclastogenic cytokine. Mechanistically, SMURF2 regulates RANKL expression by disrupting the interaction between SMAD3 and vitamin D receptor by altering SMAD3 ubiquitination. Selective deletion of Smurf2 in the osteoblast lineage recapitulates the phenotype of germline Smurf2-deficient mice, indicating that SMURF2 regulates osteoblast-dependent osteoclast activity rather than directly affecting the osteoclast. Our results reveal SMURF2 as an important regulator of the critical communication between osteoblasts and osteoclasts. Furthermore, the bone mass phenotype in Smurf2- and Smurf1-deficient mice is opposite, indicating that SMURF2 has a non-overlapping and, in some respects, opposite function to SMURF1. The balance between osteoclast and osteoblast-mediated bone turnover is essential for bone health and homeostasis. Here the authors show that both germline and osteoblast-specific Smurf2-deficient mice have osteoporosis as a result of increased osteoblast RANKL production and excess osteoclastogenesis.
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Chen D, Shen J, Zhao W, Wang T, Han L, Hamilton JL, Im HJ. Osteoarthritis: toward a comprehensive understanding of pathological mechanism. Bone Res 2017; 5:16044. [PMID: 28149655 PMCID: PMC5240031 DOI: 10.1038/boneres.2016.44] [Citation(s) in RCA: 676] [Impact Index Per Article: 96.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Revised: 09/02/2016] [Accepted: 09/08/2016] [Indexed: 12/14/2022] Open
Abstract
Osteoarthritis (OA) is the most common degenerative joint disease and a major cause of pain and disability in adult individuals. The etiology of OA includes joint injury, obesity, aging, and heredity. However, the detailed molecular mechanisms of OA initiation and progression remain poorly understood and, currently, there are no interventions available to restore degraded cartilage or decelerate disease progression. The diathrodial joint is a complicated organ and its function is to bear weight, perform physical activity and exhibit a joint-specific range of motion during movement. During OA development, the entire joint organ is affected, including articular cartilage, subchondral bone, synovial tissue and meniscus. A full understanding of the pathological mechanism of OA development relies on the discovery of the interplaying mechanisms among different OA symptoms, including articular cartilage degradation, osteophyte formation, subchondral sclerosis and synovial hyperplasia, and the signaling pathway(s) controlling these pathological processes.
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Affiliation(s)
- Di Chen
- Department of Biochemistry, Rush University Medical Center, Chicago, IL, USA
| | - Jie Shen
- Department of Orthopaedic Surgery, Washington University, St Louis, MO, USA
| | - Weiwei Zhao
- Department of Biochemistry, Rush University Medical Center, Chicago, IL, USA
- Department of Orthopaedics & Traumatology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Tingyu Wang
- Department of Pharmacy, Shanghai Ninth People’s Hospital, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Lin Han
- School of Biomedical Engineering, Science, and Health Systems, Drexel University, Philadelphia, PA, USA
| | - John L Hamilton
- Department of Biochemistry, Rush University Medical Center, Chicago, IL, USA
| | - Hee-Jeong Im
- Department of Biochemistry, Rush University Medical Center, Chicago, IL, USA
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Madej W, van Caam A, Blaney Davidson E, Buma P, van der Kraan PM. Unloading results in rapid loss of TGFβ signaling in articular cartilage: role of loading-induced TGFβ signaling in maintenance of articular chondrocyte phenotype? Osteoarthritis Cartilage 2016; 24:1807-1815. [PMID: 27268943 DOI: 10.1016/j.joca.2016.05.018] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Revised: 04/28/2016] [Accepted: 05/23/2016] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Recently it was shown that loading of articular cartilage explants activates TGFβ signaling. Here we investigated if in vivo chondrocytes express permanently high TGFβ signaling, and the consequence of the loss of compressive loading-mediated TGFβ signaling on chondrocyte function and phenotype. METHOD Bovine articular cartilage explants were collected within 10 min post mortem and stained immediately and after 30, 60 and 360 min for phosphorylated-Smad2, indicating active TGFβ signaling. Explants were unloaded for 48 h and subsequently repeatedly loaded with a compressive load of 3 MPa. In addition, explants were cultured unloaded for 2 weeks and the effect of loading or exogenous TGFβ on proteoglycan level and chondrocyte phenotype (Col10a1 mRNA expression) was analyzed. RESULTS Unloading of articular cartilage results in rapid loss of TGFβ signaling while subsequent compressive loading swiftly restored this. Loading and exogenous TGFβ enhanced expression of TGFβ1 and ALK5. Unloading of explants for 2 weeks resulted in proteoglycan loss and increased Col10a1 expression. Both loading and exogenous TGFβ inhibited elevated Col10a1 expression but not proteoglycan loss. CONCLUSION Our data might imply that in vivo regular physiological loading of articular cartilage leads to enduring TGFβ signaling and TGFβ-induced gene expression. We propose a hypothetical model in which loading activates a self-perpetuating system that prevents hypertrophic differentiation of chondrocytes and is crucial for cartilage homeostasis.
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Affiliation(s)
- W Madej
- Orthopedic Research Laboratory, Radboudumc, PO Box 9101, 6500 HB Nijmegen, The Netherlands
| | - A van Caam
- Experimental Rheumatology, Radboudumc, PO Box 9101, 6500 HB Nijmegen, The Netherlands
| | - E Blaney Davidson
- Experimental Rheumatology, Radboudumc, PO Box 9101, 6500 HB Nijmegen, The Netherlands
| | - P Buma
- Orthopedic Research Laboratory, Radboudumc, PO Box 9101, 6500 HB Nijmegen, The Netherlands
| | - P M van der Kraan
- Experimental Rheumatology, Radboudumc, PO Box 9101, 6500 HB Nijmegen, The Netherlands.
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Li YP, Wei XC, Li PC, Chen CW, Wang XH, Jiao Q, Wang DM, Wei FY, Zhang JZ, Wei L. The Role of miRNAs in Cartilage Homeostasis. Curr Genomics 2016; 16:393-404. [PMID: 27019614 PMCID: PMC4765526 DOI: 10.2174/1389202916666150817203144] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Revised: 06/18/2015] [Accepted: 06/26/2015] [Indexed: 12/14/2022] Open
Abstract
Osteoarthritis (OA) is an age-related disease with poorly understood pathogenesis. Recent studies have demonstrated that miRNA might play a key role in OA initiation and development. We reviewed recent publications and elucidated the connection between miRNA and OA cartilage anabolic and catabolic signals, including four signaling pathways: TGF-β/Smads and BMPs signaling, associated with cartilage anabolism; and MAPK and NF-KB signaling, associated with cartilage catabolism. We also explored the relationships with MMP, ADAMTS and NOS (NitricOxide Synthases) families, as well as with the catabolic cytokines IL-1 and TNF-α. The potential role of miRNAs in biological processes such as cartilage degeneration, chondrocyte proliferation, and differentiation is discussed. Collective evidence indicates that miRNAs play a critical role in cartilage degeneration. These findings will aid in understanding the molecular network that governs articular cartilage homeostasis and in to elucidate the role of miRNA in the pathogenesis of OA.
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Affiliation(s)
- Yong Ping Li
- Department of Orthopaedics, The Second Hospital of Shanxi Medical University, 382 Wuyi Road, Taiyuan, 030001, Shanxi, China
| | - Xiao Chun Wei
- Department of Orthopaedics, The Second Hospital of Shanxi Medical University, 382 Wuyi Road, Taiyuan, 030001, Shanxi, China
| | - Peng Cu Li
- Department of Orthopaedics, The Second Hospital of Shanxi Medical University, 382 Wuyi Road, Taiyuan, 030001, Shanxi, China
| | - Chun Wei Chen
- Department of Orthopaedics, The Second Hospital of Shanxi Medical University, 382 Wuyi Road, Taiyuan, 030001, Shanxi, China
| | - Xiao Hu Wang
- Department of Orthopaedics, The Second Hospital of Shanxi Medical University, 382 Wuyi Road, Taiyuan, 030001, Shanxi, China
| | - Qiang Jiao
- Department of Orthopaedics, The Second Hospital of Shanxi Medical University, 382 Wuyi Road, Taiyuan, 030001, Shanxi, China
| | - Dong Ming Wang
- Department of Orthopaedics, The Second Hospital of Shanxi Medical University, 382 Wuyi Road, Taiyuan, 030001, Shanxi, China
| | - Fang Yuan Wei
- Foot and Ankle Orthopaedic Surgery Center, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Jian Zhong Zhang
- Foot and Ankle Orthopaedic Surgery Center, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Lei Wei
- Department of Orthopaedics, The Second Hospital of Shanxi Medical University, 382 Wuyi Road, Taiyuan, 030001, Shanxi, China;; Foot and Ankle Orthopaedic Surgery Center, Beijing Tongren Hospital, Capital Medical University, Beijing, China; ; Department of Orthopaedics, The Warren Alpert Medical School of Brown University/Rhode Island Hospital, 1 Hoppin Street, Providence, RI 02903, USA
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50
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Liu Z, Ren Y, Mirando AJ, Wang C, Zuscik MJ, O'Keefe RJ, Hilton MJ. Notch signaling in postnatal joint chondrocytes, but not subchondral osteoblasts, is required for articular cartilage and joint maintenance. Osteoarthritis Cartilage 2016; 24:740-51. [PMID: 26522700 PMCID: PMC4799757 DOI: 10.1016/j.joca.2015.10.015] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Revised: 10/15/2015] [Accepted: 10/22/2015] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Notch signaling has been identified as a critical regulator in cartilage development and joint maintenance, and loss of Notch signaling in all joint tissues results in an early and progressive osteoarthritis (OA)-like pathology. This study investigated the targeted cell population within the knee joint in which Notch signaling is required for normal cartilage and joint integrity. METHODS Two loss-of-function mouse models were generated with tissue-specific knockout of the core Notch signaling component, RBPjκ. The AcanCre(ERT2) transgene specifically removed Rbpjκ floxed alleles in postnatal joint chondrocytes, while the Col1Cre(2.3kb) transgene deleted Rbpjκ in osteoblast populations, including subchondral osteoblasts. Mutant and control mice were analyzed via histology, immunohistochemistry (IHC), real-time quantitative polymerase chain reaction (qPCR), X-ray, and microCT imaging at multiple time-points. RESULTS Loss of Notch signaling in postnatal joint chondrocytes results in a progressive OA-like pathology, and triggered the recruitment of non-targeted fibrotic cells into the articular cartilage potentially due to mis-regulated chemokine expression from within the cartilage. Upon recruitment, these fibrotic cells produced degenerative enzymes that may lead to the observed cartilage degradation and contribute to a significant portion of the age-related OA-like pathology. On the contrary, loss of Notch signaling in subchondral osteoblasts did not affect normal cartilage development or joint maintenance. CONCLUSIONS RBPjκ-dependent Notch signaling in postnatal joint chondrocytes, but not subchondral osteoblasts, is required for articular cartilage and joint maintenance.
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MESH Headings
- Animals
- Arthritis, Experimental/genetics
- Arthritis, Experimental/metabolism
- Arthritis, Experimental/pathology
- Arthritis, Experimental/physiopathology
- Cartilage, Articular/growth & development
- Cartilage, Articular/metabolism
- Cartilage, Articular/pathology
- Cartilage, Articular/physiopathology
- Chondrocytes/metabolism
- Disease Progression
- Gene Expression Regulation, Developmental
- Mice
- Mice, Transgenic
- Osteoarthritis/genetics
- Osteoarthritis/metabolism
- Osteoarthritis/pathology
- Osteoarthritis/physiopathology
- Osteoblasts/metabolism
- Receptors, Notch/genetics
- Receptors, Notch/physiology
- Signal Transduction/physiology
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Affiliation(s)
- Z Liu
- Department of Orthopaedics and Rehabilitation, The Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY 14642, USA; Department of Biology, University of Rochester, Rochester, NY 14642, USA
| | - Y Ren
- Department of Orthopaedic Surgery, Duke Orthopaedic Cellular, Developmental, and Genome Laboratories, Duke University School of Medicine, Durham, NC 27710, USA
| | - A J Mirando
- Department of Orthopaedics and Rehabilitation, The Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY 14642, USA; Department of Orthopaedic Surgery, Duke Orthopaedic Cellular, Developmental, and Genome Laboratories, Duke University School of Medicine, Durham, NC 27710, USA
| | - C Wang
- Department of Orthopaedics and Rehabilitation, The Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY 14642, USA; Department of Orthopaedic Surgery, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - M J Zuscik
- Department of Orthopaedics and Rehabilitation, The Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY 14642, USA
| | - R J O'Keefe
- Department of Orthopaedics and Rehabilitation, The Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY 14642, USA; Department of Orthopaedic Surgery, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - M J Hilton
- Department of Orthopaedics and Rehabilitation, The Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY 14642, USA; Department of Orthopaedic Surgery, Duke Orthopaedic Cellular, Developmental, and Genome Laboratories, Duke University School of Medicine, Durham, NC 27710, USA; Department of Cell Biology, Duke University School of Medicine, Durham, NC 27710, USA.
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