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Cheung C, Tu S, Feng Y, Wan C, Ai H, Chen Z. Mitochondrial quality control dysfunction in osteoarthritis: Mechanisms, therapeutic strategies & future prospects. Arch Gerontol Geriatr 2024; 125:105522. [PMID: 38861889 DOI: 10.1016/j.archger.2024.105522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 05/25/2024] [Accepted: 06/03/2024] [Indexed: 06/13/2024]
Abstract
Osteoarthritis (OA) is a prevalent chronic joint disease characterized by articular cartilage degeneration, pain, and disability. Emerging evidence indicates that mitochondrial quality control dysfunction contributes to OA pathogenesis. Mitochondria are essential organelles to generate cellular energy via oxidative phosphorylation and regulate vital processes. Impaired mitochondria can negatively impact cellular metabolism and result in the generation of harmful reactive oxygen species (ROS). Dysfunction in mitochondrial quality control mechanisms has been increasingly linked to OA onset and progression. This review summarizes current knowledge on the role of mitochondrial quality control disruption in OA, highlighting disturbed mitochondrial dynamics, impaired mitochondrial biogenesis, antioxidant defenses and mitophagy. The review also discusses potential therapeutic strategies targeting mitochondrial Quality Control in OA, offering future perspectives on advancing OA therapeutic strategies.
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Affiliation(s)
- Chiyuen Cheung
- Department of Stomatology, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, PR China
| | - Shaoqin Tu
- Department of Stomatology, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, PR China
| | - Yi Feng
- Department of Stomatology, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, PR China
| | - Chuiming Wan
- Department of Stomatology, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, PR China
| | - Hong Ai
- Department of Stomatology, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, PR China
| | - Zheng Chen
- Department of Stomatology, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, PR China.
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Lei P, Wang X, Qu X, Qi R, Chen D, Chang Y. The expression of SOCS1 is regulated by promoter DNA methylation and is associated with mitochondria-mediated apoptosis of T-2 induced chondrocytes. Exp Cell Res 2024; 441:114152. [PMID: 38971518 DOI: 10.1016/j.yexcr.2024.114152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 05/31/2024] [Accepted: 07/03/2024] [Indexed: 07/08/2024]
Abstract
At present, the function of SOCS1 in Kashin-Beck disease (KBD) has not been reported. This study aims to explore the expression and mechanism of SOCS1 in KBD, and provide theoretical basis for the prevention and treatment of KBD. The expression of SOCS1 were measured by qRT-PCR and Western blot. ELISA was used to detect the content of SOCS1 in serum and synovial fluid. CCK-8 kits were selected to measure the cell viability. Methylation Specific PCR (MSP) assay is used to detect the methylation level of SOCS1 in chondrocytes. Flow cytometry was used to analyze the apoptosis rate of chondrocytes in different groups. The expression of apoptosis related proteins (caspase-3 and caspase-9) and Cytochrome c were detected using Western blot. The mitochondrial ROS, ATP and the activity of mitochondrial respiratory chain complexes were detected using commercial kits. The results showed that the expression of SOCS1 significantly increases in KBD patients and T-2 induced chondrocytes. Further research has found that the methylation levels of SOCS1 were significantly reduced in KBD patients and T-2 induced chondrocytes. Functional studies have found that SOCS1 silencing inhibited chondrocyte apoptosis and mitochondrial dysfunction. More importantly, SOCS1 regulated mitochondrial mediated chondrocyte apoptosis through the IGF-1/IGF-1R/FAK/Drp1 pathway. In conclusion, SOCS1 expression is increased and methylation levels are decreased in KBD, and is involved in regulating mitochondrial mediated apoptosis in T-2 induced chondrocytes through IGF-1/IGF-1R/FAK/Drp1 signaling. This study provides new theoretical basis for the treatment and prevention of KBD in clinical practice.
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Affiliation(s)
- Pengzhen Lei
- Department of Orthopedics, Shaanxi Provincial People's Hospital, Xi'an, 710068, Shaanxi, China
| | - Xiaoqing Wang
- Nursing Department, Shaanxi Provincial People's Hospital, Xi'an, 710068, Shaanxi, China
| | - Xiaodong Qu
- Department of Orthopedics, Shaanxi Provincial People's Hospital, Xi'an, 710068, Shaanxi, China
| | - Rui Qi
- Department of Orthopedics, Shaanxi Provincial People's Hospital, Xi'an, 710068, Shaanxi, China
| | - Duanmingyu Chen
- Department of Orthopedics, Shaanxi Provincial People's Hospital, Xi'an, 710068, Shaanxi, China
| | - Yanhai Chang
- Department of Orthopedics, Shaanxi Provincial People's Hospital, Xi'an, 710068, Shaanxi, China.
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Dalmao-Fernández A, Hermida-Gómez T, Nogueira-Recalde U, Rego-Pérez I, Blanco-Garcia FJ, Fernández-Moreno M. Mitochondrial Role on Cellular Apoptosis, Autophagy, and Senescence during Osteoarthritis Pathogenesis. Cells 2024; 13:976. [PMID: 38891108 PMCID: PMC11172191 DOI: 10.3390/cells13110976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 05/23/2024] [Accepted: 06/01/2024] [Indexed: 06/21/2024] Open
Abstract
Authors have demonstrated that apoptosis activation is a pathway related to cartilage degradation characteristics of the OA process. Autophagy is an adaptive response to protect cells from various environmental changes, and defects in autophagy are linked to cell death. In this sense, decreased autophagy of chondrocytes has been observed in OA articular cartilage. The aim of this work was to study the role of OA mitochondria in apoptosis, autophagy, and senescence, using OA and Normal (N) transmitochondrial cybrids. Results: OA cybrids incubated with menadione showed a higher percentage of late apoptosis and necrosis than N cybrids. Stimulation of cybrids with staurosporine and IL-1β showed that OA cybrids were more susceptible to undergoing apoptosis than N cybrids. An analysis of the antioxidant response using menadione on gene expression revealed a lower expression of nuclear factor erythroid 2-like 2 and superoxide dismutase 2 in OA than N cybrids. Activation of microtubule-associated protein 1A/1B-light chain 3 was reduced in OA compared to N cybrids. However, the percentage of senescent cells was higher in OA than N cybrids. Conclusion: This work suggests that mitochondria from OA patients could be involved in the apoptosis, autophagy, and senescence of chondrocytes described in OA cartilage.
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Affiliation(s)
- Andrea Dalmao-Fernández
- Grupo de Investigación en Reumatología (GIR), Instituto de Investigación Biomédica de A Coruña (INIBIC), Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas, Universidade de A Coruña (UDC), 15071 A Coruña, Spain; (A.D.-F.); (T.H.-G.); (U.N.-R.); (I.R.-P.)
- Section for Pharmacology and Pharmaceutical Biosciences, Department of Pharmacy, University of Oslo, 0316 Oslo, Norway
| | - Tamara Hermida-Gómez
- Grupo de Investigación en Reumatología (GIR), Instituto de Investigación Biomédica de A Coruña (INIBIC), Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas, Universidade de A Coruña (UDC), 15071 A Coruña, Spain; (A.D.-F.); (T.H.-G.); (U.N.-R.); (I.R.-P.)
- Grupo de Investigación en Reumatología y Salud (GIR-S), Centro Interdisciplinar de Química y Biología (CICA), Universidade de A Coruña (UDC), Campus de Elviña, 15071 A Coruña, Spain
- Centro de Investigación Biomédica en Red, Bioingenieria, Biomatereiales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain
| | - Uxia Nogueira-Recalde
- Grupo de Investigación en Reumatología (GIR), Instituto de Investigación Biomédica de A Coruña (INIBIC), Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas, Universidade de A Coruña (UDC), 15071 A Coruña, Spain; (A.D.-F.); (T.H.-G.); (U.N.-R.); (I.R.-P.)
| | - Ignacio Rego-Pérez
- Grupo de Investigación en Reumatología (GIR), Instituto de Investigación Biomédica de A Coruña (INIBIC), Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas, Universidade de A Coruña (UDC), 15071 A Coruña, Spain; (A.D.-F.); (T.H.-G.); (U.N.-R.); (I.R.-P.)
| | - Francisco J. Blanco-Garcia
- Grupo de Investigación en Reumatología (GIR), Instituto de Investigación Biomédica de A Coruña (INIBIC), Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas, Universidade de A Coruña (UDC), 15071 A Coruña, Spain; (A.D.-F.); (T.H.-G.); (U.N.-R.); (I.R.-P.)
- Grupo de Investigación en Reumatología y Salud (GIR-S), Departamento de Fisioterapia, Medicina y Ciencias Biomédicas, Facultad de Fisioterapia, Centro Interdisciplinar de Química y Biología (CICA), INIBIC-Sergas, Universidade de A Coruña (UDC), Campus de Oza, 15008 A Coruña, Spain
| | - Mercedes Fernández-Moreno
- Grupo de Investigación en Reumatología (GIR), Instituto de Investigación Biomédica de A Coruña (INIBIC), Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas, Universidade de A Coruña (UDC), 15071 A Coruña, Spain; (A.D.-F.); (T.H.-G.); (U.N.-R.); (I.R.-P.)
- Grupo de Investigación en Reumatología y Salud (GIR-S), Centro Interdisciplinar de Química y Biología (CICA), Universidade de A Coruña (UDC), Campus de Elviña, 15071 A Coruña, Spain
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Yin H, Li X, Wang C, Li X, Liu J. Nickel induces mitochondrial damage in renal cells in vitro and in vivo through its effects on mitochondrial biogenesis, fusion, and fission. Chem Biol Interact 2024; 394:110975. [PMID: 38552765 DOI: 10.1016/j.cbi.2024.110975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 03/14/2024] [Accepted: 03/24/2024] [Indexed: 04/01/2024]
Abstract
Nickel (Ni) and its compounds are common, widely distributed components of hazardous waste in the chemical industry. Excessive exposure to Ni can cause kidney damage in humans and animals. We investigated the impact of Ni on renal mitochondria using in vivo and in vitro models of Ni nephrotoxicity, and explored the Ni nephrotoxic mechanism. We showed that nickel chloride (NiCl2) damaged the renal mitochondria, causing mitochondrial swelling, breakage of the mitochondrial cristae, increased levels of mitochondrial reactive oxygen species (mt-ROS), and depolarization of the mitochondrial membrane potential (MMP). The levels of the mitochondrial respiratory chain complexes I-IV were reduced in the kidneys of mice treated with NiCl2. In addition, NiCl2 treatment inhibited mitochondrial biogenesis in renal cells by down-regulating mRNA and the protein expression of TFAM, PGC-1α, and NRF1. Moreover, NiCl2 reduced the levels of the proteins involved in mitochondrial fusion, including Mfn1 and Mfn2, while significantly augmenting the levels of the proteins Fis1 and Drip1 involved in mitochondrial fission in renal cells. Taken together, these results suggested that NiCl2 inhibited mitochondrial biogenesis, suppressed mitochondrial fusion, and promoted mitochondrial fission, resulting in mitochondrial dysfunction in renal cells, ultimately causing renal injury. This study provided novel insights into the mechanisms of nephrotoxicity of Ni and new ideas for the development of targeted treatments for Ni-induced kidney injury.
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Affiliation(s)
- Heng Yin
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China
| | - Xinglai Li
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China
| | - Chengbi Wang
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China
| | - Xiaocong Li
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China
| | - Jingbo Liu
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, 621010, China.
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Hu F, Hu W, Xu H. Schisandrin B Alleviates LPS Induced Mitochondrial Damage in C28I2 Cells. J Membr Biol 2024; 257:107-114. [PMID: 38285126 DOI: 10.1007/s00232-023-00299-5] [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: 09/10/2023] [Accepted: 11/17/2023] [Indexed: 01/30/2024]
Abstract
Osteoarthritis is a common joint disease characterized by damage to the joint cartilage that occurs throughout the entire joint tissue. This damage primarily manifests as pain in the affected area. In clinical practice, medication is commonly used to relieve pain, but the treatment's effectiveness is poor and recurrent attacks are likely. Schisandrin B is the most abundant biphenylcyclohexene lignan found in the traditional Chinese medicine Schisandra chinensis, and it possesses various pharmacological effects. This study aims to investigate the protective effect of Schisandrin B on mitochondrial damage in osteoarthritis (C28I2 cells) under an inflammatory environment induced by LPS. Cell proliferation and activity, scratch tests, and LDH release tests are utilized to assess cell growth and migration ability. The immunofluorescence assay was used to detect the expression levels of proliferation and apoptosis proteins. The Western Blot assay was used to detect the expression levels of mitochondrial fusion and division proteins. The JC-1 assay was used to detect changes in mitochondrial membrane potential. The mitochondrial fluorescence probe assay was used to detect mitochondrial activity. Through research, it was found that Schisandrin B promotes the proliferation, growth, and migration of C28I2 cells, reduces apoptosis of C28I2 cells, balances mitochondrial fusion and division, stabilizes mitochondrial membrane potential, and promotes mitochondrial activity in an LPS induced inflammatory environment.
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Affiliation(s)
- Fei Hu
- Cixi Biomedical Research Institute, Wenzhou Medical University, Cixi, Ningbo, China
| | - WenJie Hu
- Department of Orthopaedic Surgery, Affiliated Cixi Hospital, Wenzhou Medical University, No. 999, South Second Ring Road, Hushan Street, Cixi, Ningbo, 315300, China
| | - Hongming Xu
- Department of Orthopaedic Surgery, Affiliated Cixi Hospital, Wenzhou Medical University, No. 999, South Second Ring Road, Hushan Street, Cixi, Ningbo, 315300, China.
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Fernández-Moreno M, Hermida-Gómez T, Larkins N, Reynolds A, Blanco FJ. Anti-Inflammatory Activity of APPA (Apocynin and Paeonol) in Human Articular Chondrocytes. Pharmaceuticals (Basel) 2024; 17:118. [PMID: 38256951 PMCID: PMC10818286 DOI: 10.3390/ph17010118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 01/10/2024] [Accepted: 01/12/2024] [Indexed: 01/24/2024] Open
Abstract
Osteoarthritis (OA) is a chronic joint disease leading to cartilage loss and reduction in the joint space which results in pain. The current pharmacological treatment of OA is inadequate and pharmacological interventions focus on symptom management. APPA, a combination of apocynin (AP) and paeonol (PA), is a potential drug for treating OA. The aim of this study was to analyze the effects of APPA on the modulation of the inflammatory response in chondrocytes. Samples were incubated with IL-1β and APPA, and their responses to proinflammatory cytokines, catabolic mediators and redox responses were then measured. The effect of APPA on mitogenesis was also evaluated. Results show that APPA attenuated the expression of IL-8, TNF-α, MMP-3, MMP-13, SOD-2 and iNOS, resulting in the protection of human articular cartilage. APPA decreased PGC-1α gene expression induced by IL-1β. APPA did not modulate the gene expression of Mfn2, Sirt-1 or Sirt-3. The overall findings indicate that APPA may be an effective treatment for OA by targeting several of the pathways involved in OA pathogenesis.
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Affiliation(s)
- Mercedes Fernández-Moreno
- Grupo de Investigación en Reumatología (GIR), Instituto de Investigación Biomédica de A Coruña (INIBIC), Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas, Universidade de A Coruña (UDC), 15071 A Coruña, Spain;
- Grupo de Investigación en Reumatología y Salud (GIR-S), Centro Interdisciplinar de Química y Biología (CICA), Universidade de A Coruña (UDC), Campus de Elviña, 15071 A Coruña, Spain
| | - Tamara Hermida-Gómez
- Grupo de Investigación en Reumatología (GIR), Instituto de Investigación Biomédica de A Coruña (INIBIC), Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas, Universidade de A Coruña (UDC), 15071 A Coruña, Spain;
- Grupo de Investigación en Reumatología y Salud (GIR-S), Centro Interdisciplinar de Química y Biología (CICA), Universidade de A Coruña (UDC), Campus de Elviña, 15071 A Coruña, Spain
- Centro de Investigación Biomédica en Red, Bioingenieria, Biomatereial y Nanomedicina (CIBER-BBN), 50018 Zaragoza, Spain
| | - Nicholas Larkins
- AKL Therapeutics Ltd., Stevenage Bioscience, Gunnels Wood Rd, Stevenage SG1 2FX, UK; (N.L.); (A.R.)
| | - Alan Reynolds
- AKL Therapeutics Ltd., Stevenage Bioscience, Gunnels Wood Rd, Stevenage SG1 2FX, UK; (N.L.); (A.R.)
| | - Francisco J. Blanco
- Grupo de Investigación en Reumatología (GIR), Instituto de Investigación Biomédica de A Coruña (INIBIC), Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas, Universidade de A Coruña (UDC), 15071 A Coruña, Spain;
- Grupo de Investigación en Reumatología y Salud (GIR-S), Departamento de Fisioterapia, Medicina y Ciencias Biomédicas, Facultad de Fisioterapia, Centro Interdisciplinar de Química y Biología (CICA), INIBIC-Sergas, Universidade de A Coruña (UDC), Campus de Oza, 15008 A Coruña, Spain
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Zhao R, Chen Y, Wang D, Zhang C, Song H, Ni G. Role of irisin in bone diseases. Front Endocrinol (Lausanne) 2023; 14:1212892. [PMID: 37600697 PMCID: PMC10436578 DOI: 10.3389/fendo.2023.1212892] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Accepted: 07/10/2023] [Indexed: 08/22/2023] Open
Abstract
Bone diseases are common among middle-aged and elderly people, and harm to activities of daily living (ADL) and quality of life (QOL) for patients. It is crucial to search for key regulatory factors associated with the development of bone diseases and explore potential therapeutic targets for bone diseases. Irisin is a novel myokine that has been discovered in recent years. Accumulating evidence indicates that irisin has beneficial effects in the treatment of various diseases such as metabolic, cardiovascular and neurological disorders, especially bone-related diseases. Recent studies had shown that irisin plays the role in various bone diseases such as osteoarthritis, osteoporosis and other bone diseases, suggesting that irisin may be a potential molecule for the prevention and treatment of bone diseases. Therefore, in this review, by consulting the related domestic and international literature of irisin and bone diseases, we summarized the specific regulatory mechanisms of irisin in various bone diseases, and provided a systematic theoretical basis for its application in the diagnosis and treatment of the bone diseases.
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Affiliation(s)
- Ruobing Zhao
- School of Sport Medicine and Rehabilitation, Beijing Sport University, Beijing, China
| | - Yan Chen
- School of Sport Medicine and Rehabilitation, Beijing Sport University, Beijing, China
| | - Dongxue Wang
- School of Sport Medicine and Rehabilitation, Beijing Sport University, Beijing, China
| | - Chunyu Zhang
- School of Sport Medicine and Rehabilitation, Beijing Sport University, Beijing, China
| | - Henan Song
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Guoxin Ni
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Xiamen University, Xiamen, China
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Xu K, Wang H, Wu Z. Genkwanin suppresses mitochondrial dysfunction to alleviate IL-1β-elicited inflammation, apoptosis, and degradation of extracellular matrix in chondrocytes through upregulating DUSP1. CHINESE J PHYSIOL 2023; 66:284-293. [PMID: 37635488 DOI: 10.4103/cjop.cjop-d-23-00031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/29/2023] Open
Abstract
Osteoarthritis (OA) is a form of chronic degenerative disease contributing to elevated disability rate among the elderly. Genkwanin is an active component extracted from Daphne genkwa possessing pharmacologic effects. Here, this study is designed to expound the specific role of genkwanin in OA and elaborate the probable downstream mechanism. First, the viability of chondrocytes in the presence or absence of interleukin-1 beta (IL-1β) treatment was detected by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay. Terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling assay was used to assess cell apoptosis. Inflammatory response was estimated through enzyme-linked immunosorbent assay and Western blot. In addition, immunofluorescence staining and Western blot were utilized to measure the expression of extracellular matrix (ECM)-associated proteins. Dual-specificity protein phosphatase-1 (DUSP1) expression was tested by reverse transcription-quantitative polymerase chain reaction (RT-qPCR) and Western blot. Following DUSP1 elevation in genkwanin-treated chondrocytes exposed to IL-1β, inflammatory response and ECM-associated factors were evaluated as forementioned. In addition, 5,5',6,6'-tetrachloro-1,1',3,3'-tetraethylbenzimidazolocarbocyanine iodide staining was to assess the mitochondrial membrane potential. Adenosine triphosphate (ATP) level was examined with ATP assay kit, and RT-qPCR was used to test mitochondrial DNA expression. Results indicated that genkwanin administration enhanced the viability while ameliorated the apoptosis, inflammatory response, and ECM degradation in IL-1β-induced chondrocytes. Besides, genkwanin treatment fortified DUSP1 expression in IL-1β-exposed chondrocytes. DUSP1 interference further offsets the impacts of genkwanin on the inflammation, ECM degradation, and mitochondrial dysfunction in IL-1β-challenged chondrocytes. In short, genkwanin enhanced DUSP1 expression to mitigate mitochondrial dysfunction, thus ameliorating IL-1β-elicited inflammation, apoptosis, and degradation of ECM in chondrocytes.
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Affiliation(s)
- Kanna Xu
- Emergency Department, The First People's Hospital of Huzhou, Huzhou, Zhejiang, China
| | - Haoran Wang
- Department of Orthopedics, Hangzhou Children's Hospital, Hangzhou, Zhejiang, China
| | - Zhongqing Wu
- Department of Orthopedics, The First People's Hospital of Huzhou, Huzhou, Zhejiang, China
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Liu Y, Zhang Z, Liu C, Zhang H. Sirtuins in osteoarthritis: current understanding. Front Immunol 2023; 14:1140653. [PMID: 37138887 PMCID: PMC10150098 DOI: 10.3389/fimmu.2023.1140653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 03/27/2023] [Indexed: 05/05/2023] Open
Abstract
Osteoarthritis (OA) is a common disease characterized by severe chronic joint pain, that imposes a large burden on elderly people. OA is a highly heterogeneous disease, and multiple etiologies contribute to its progression. Sirtuins (SIRTs) are Class III histone deacetylases (HDACs) that regulate a comprehensive range of biological processes such as gene expression, cell differentiation, and organism development, and lifespan. Over the past three decades, increasing evidence has revealed that SIRTs are not only important energy sensors but also protectors against metabolic stresses and aging, and an increasing number of studies have focused on the functions of SIRTs in OA pathogenesis. In this review, we illustrate the biological functions of SIRTs in OA pathogenesis from the perspectives of energy metabolism, inflammation, autophagy and cellular senescence. Moreover, we offer insights into the role played by SIRTs in regulating circadian rhythm, which has recently been recognized to be crucial in OA development. Here, we provide the current understanding of SIRTs in OA to guide a new direction for OA treatment exploration.
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BMSCs-derived Mitochondria Improve Osteoarthritis by Ameliorating Mitochondrial Dysfunction and Promoting Mitochondrial Biogenesis in Chondrocytes. Stem Cell Rev Rep 2022; 18:3092-3111. [PMID: 35943688 DOI: 10.1007/s12015-022-10436-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/22/2022] [Indexed: 10/15/2022]
Abstract
Bone marrow mesenchymal stem cells (BMSCs)-derived exosomes and microvesicles can effectively improve knee osteoarthritis. We found that microvesicles performed a superior effect on improving mitochondrial function in chondrocytes than exosomes, which may be related to the ability of microvesicles carrying active mitochondria to replace damaged ones in chondrocytes. This study investigated the therapeutic effect of direct mitochondrial transplantation (MT) on knee osteoarthritis. IL-1β stimulated the osteoarthritis phenotype of rat chondrocytes, and the effect of BMSCs-derived mitochondria transplantation was observed in vitro. Knee osteoarthritis rat model was established by collagenase induction to observe the effect of intra-articular injection of mitochondria. Results showed that the mitochondria of BMSCs could be ingested by rat chondrocytes via co-incubation in vitro, and significantly improved osteoarthritis phenotype and mitochondrial function, and inhibited chondrocytes apoptosis. In vivo, BMSCs-derived mitochondria could be ingested by cartilage via intra-articular injection, ameliorated pathological cartilage injury, suppressed inflammation, inhibited chondrocytes apoptosis, and improved osteoarthritis phenotype. In addition, MT promoted mitochondrial biogenesis in chondrocytes by activating PGC-1α signaling. All above results suggest that BMSCs-derived mitochondria transplantation ameliorates knee osteoarthritis by improving chondrocytes mitochondrial dysfunction and promoting mitochondrial biogenesis.
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Duan D, Qin J, Wang X, Fan Y, Ji L, Feng M. OPA1 protected against IL-1β-induced chondrocyte dysfunction by alleviating mitochondrial dysfunction and oxidative stress through activation of Parkin-mediated mitophagy. Immunobiology 2022. [DOI: 10.1016/j.imbio.2022.152235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Sestrin2 overexpression attenuates osteoarthritis pain via induction of AMPK/PGC-1α-mediated mitochondrial biogenesis and suppression of neuroinflammation. Brain Behav Immun 2022; 102:53-70. [PMID: 35151829 DOI: 10.1016/j.bbi.2022.02.015] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 02/07/2022] [Accepted: 02/07/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Our previous study indicated that reactive oxygen species (ROS) are critically involved in chronic pain. Sestrin2 (Sesn2), a novel stress-inducible protein, is evidenced to reduce the generation of ROS. The study examined the role of Sesn2 in osteoarthritis (OA) pain and delineated the underlying molecular mechanisms. METHODS In the present study, we investigated the impact of Sesn2 on mitochondrial biogenesis in a rat model of OA pain. After adeno-associated viral (AAV)-Sesn2EGFP was injected for 14 days, OA was induced by intra-articular injection of monosodium iodoacetate (MIA). We assessed pain behaviors (weight-bearing asymmetry and paw withdrawal threshold) and explored possible mechanisms in the L4-6 spinal cord. RESULTS Our results showed that overexpression of Sesn2 in the spinal cord alleviated pain behaviors in OA rats. Moreover, overexpression of Sesn2 increased the activity of AMP-activated protein kinase (AMPK) signaling and significantly restored mitochondrial biogenesis. Besides, Sesn2 overexpression inhibited the activation of astrocytes and microglia, and decreased the production of interleukin-1β (IL-1β), interleukin-6 (IL-6), and tumor necrosis factor-α (TNF-α) in the spinal cord of the OA pain rats. These effects were significantly reversed by an AMPK inhibitor. CONCLUSIONS Collectively, these results suggest that Sesn2 overexpression ameliorates mechanical allodynia and weight-bearing asymmetry in OA rats via activation of AMPK/PGC-1α-mediated mitochondrial biogenesis in the spinal cord. Moreover, Sesn2 overexpression attenuates OA-induced neuroinflammation at least partly by activating AMPK signaling. Sesn2 may become an encouraging therapeutic strategy for OA pain relief and other disorders.
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Liu D, Cai ZJ, Yang YT, Lu WH, Pan LY, Xiao WF, Li YS. Mitochondrial quality control in cartilage damage and osteoarthritis: new insights and potential therapeutic targets. Osteoarthritis Cartilage 2022; 30:395-405. [PMID: 34715366 DOI: 10.1016/j.joca.2021.10.009] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 10/15/2021] [Accepted: 10/21/2021] [Indexed: 02/02/2023]
Abstract
Osteoarthritis (OA) is a multifactorial arthritic disease of weight-bearing joints concomitant with chronic and intolerable pain, loss of locomotion and impaired quality of life in the elderly population. Although the prevalence of OA increases with age, its specific mechanisms have not been elucidated and effective therapeutic disease-modifying drugs have not been developed. As essential organelles in chondrocytes, mitochondria supply energy and play vital roles in cellular metabolism, proliferation and apoptosis. Mitochondrial quality control (MQC) is the key mechanism to coordinate various mitochondrial biofunctions, primarily through mitochondrial biogenesis, dynamics, autophagy and the newly discovered mitocytosis. An increasing number of studies have revealed that a loss of MQC homeostasis contributes to the cartilage damage during the occurrence and development of OA. Several master MQC-associated signaling pathways and regulators exert chondroprotective roles in OA, while cartilage damage-related molecular mechanisms have been partially identified. In this review, we summarized known mechanisms mediated by dysregulated MQC in the pathogenesis of OA and latent bioactive ingredients and drugs for the prevention and treatment of OA through the maintenance of MQC.
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Affiliation(s)
- D Liu
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
| | - Z-J Cai
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
| | - Y-T Yang
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
| | - W-H Lu
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
| | - L-Y Pan
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
| | - W-F Xiao
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China.
| | - Y-S Li
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China.
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14
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Kuwahara M, Akasaki Y, Kurakazu I, Sueishi T, Toya M, Uchida T, Tsutsui T, Hirose R, Tsushima H, Teramura T, Nakashima Y. C10orf10/DEPP activates mitochondrial autophagy and maintains chondrocyte viability in the pathogenesis of osteoarthritis. FASEB J 2022; 36:e22145. [PMID: 34997944 DOI: 10.1096/fj.202100896r] [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] [Received: 06/02/2021] [Revised: 12/13/2021] [Accepted: 12/21/2021] [Indexed: 12/11/2022]
Abstract
Osteoarthritis (OA), the most prevalent joint disease, is characterized by the progressive loss of articular cartilage. Autophagy, a lysosomal degradation pathway, maintains cellular homeostasis, and autophagic dysfunction in chondrocytes is a hallmark of OA pathogenesis. However, the cause of autophagic dysfunction in OA chondrocytes remains incompletely understood. Recent studies have reported that decidual protein induced by progesterone (C10orf10/DEPP) positively regulates autophagic functions. In this study, we found that DEPP was involved in mitochondrial autophagic functions of chondrocytes, as well as in OA pathogenesis. DEPP expression decreased in human OA chondrocytes in the absence or presence of pro-inflammatory cytokines, and was induced by starvation, hydrogen peroxide (H2 O2 ), and hypoxia (cobalt chloride). For functional studies, DEPP knockdown decreased autophagic flux induced by H2 O2 , whereas DEPP overexpression increased autophagic flux and maintained cell viability following H2 O2 treatment. DEPP was downregulated by knockdown of forkhead box class O (FOXO) transcription factors and modulated the autophagic function regulated by FOXO3. In an OA mouse model by destabilization of the medial meniscus, DEPP-knockout mice exacerbated the progression of cartilage degradation with TUNEL-positive cells, and chondrocytes isolated from knockout mice were decreased autophagic flux and increased cell death following H2 O2 treatment. Subcellular fractionation analysis revealed that mitochondria-located DEPP activated mitochondrial autophagy via BCL2 interacting protein 3. Taken together, our data demonstrate that DEPP is a major stress-inducible gene involved in the activation of mitochondrial autophagy in chondrocytes, and maintains chondrocyte viability during OA pathogenesis. DEPP represents a potential therapeutic target for enhancing autophagy in patients with OA.
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Affiliation(s)
- Masanari Kuwahara
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka City, Japan
| | - Yukio Akasaki
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka City, Japan
| | - Ichiro Kurakazu
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka City, Japan
| | - Takuya Sueishi
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka City, Japan
| | - Masakazu Toya
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka City, Japan
| | - Taisuke Uchida
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka City, Japan
| | - Tomoaki Tsutsui
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka City, Japan
| | - Ryota Hirose
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka City, Japan
| | - Hidetoshi Tsushima
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka City, Japan
| | - Takeshi Teramura
- Division of Cell Biology for Regenerative Medicine, Institute of Advanced Clinical Medicine, Kindai University Faculty of Medicine, Osaka-sayama, Japan
| | - Yasuharu Nakashima
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka City, Japan
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15
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Abstract
PROPOSE OF REVIEW To summarize the evidence that suggests that osteoarthritis (OA) is a mitochondrial disease. RECENT FINDINGS Mitochondrial dysfunction together with mtDNA damage could contribute to cartilage degradation via several processes such as: (1) increased apoptosis; (2) decreased autophagy; (3) enhanced inflammatory response; (4) telomere shortening and increased senescence chondrocytes; (5) decreased mitochondrial biogenesis and mitophagy; (6) increased cartilage catabolism; (7) increased mitochondrial fusion leading to further reactive oxygen species production; and (8) impaired metabolic flexibility. SUMMARY Mitochondria play an important role in some events involved in the pathogenesis of OA, such as energy production, the generation of reactive oxygen and nitrogen species, apoptosis, authophagy, senescence and inflammation. The regulation of these processes in the cartilage is at least partially controlled by retrograde regulation from mitochondria and mitochondrial genetic variation. Retrograde regulation through mitochondrial haplogroups exerts a signaling control over the nuclear epigenome, which leads to the modulation of nuclear genes, cellular functions and development of OA. All these data suggest that OA could be considered a mitochondrial disease as well as other complex chronic disease as cancer, cardiovascular and neurologic diseases.
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16
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Peng X, Wang K, Zhang C, Bao JP, Vlf C, Gao JW, Zhou ZM, Wu XT. The mitochondrial antioxidant SS-31 attenuated lipopolysaccharide-induced apoptosis and pyroptosis of nucleus pulposus cells via scavenging mitochondrial ROS and maintaining the stability of mitochondrial dynamics. Free Radic Res 2021; 55:1080-1093. [PMID: 34903138 DOI: 10.1080/10715762.2021.2018426] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Evidence has shown that effects from inflammation and mitochondrial dysfunction lead to pyroptosis and apoptosis of nucleus pulposus (NP) cells. Damaged mitochondria release dangerous molecules such as reactive oxygen species (ROS), activating the NLRP3 inflammasome. SS-31 is a mitochondria-targeting peptide that has been used in the treatment of many diseases by scavenging ROS and ameliorating mitochondrial function. This study found that SS-31 ameliorated lipopolysaccharide (LPS)-induced loss of cell viability, ROS production, and apoptosis in NP cells. Moreover, mitochondrial dynamics and ATP synthesis were restored on pretreatment with SS-31 compared with the LPS group. For the molecular mechanism research, SS-31 stabilized mitochondrial morphology and inhibited the activation of the NF-κB pathway and the activation of the NLRP3 inflammasome. To evaluate whether the inhibition of NLRP3 inflammasome activation by SS-31 is dependent on the clearance of mitochondrial ROS, we comparatively analyzed the activation of NLRP3 inflammasome in NP cells pretreated with SS-31 and the ROS scavenger N-acetyl-L-cysteine (NAC). The results indicate that SS-31 could inhibit NLRP3 inflammasome activation by limiting the production of mitochondrial ROS. To sum up, our results revealed that SS-31 inhibits LPS-induced apoptosis, pyroptosis, and inflammation in NP cells via scavenging ROS and maintaining the stability of mitochondrial dynamics, which could be considered a promising therapeutic intervention for disk degeneration.
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Affiliation(s)
- Xin Peng
- Medical School of Southeast University, Nanjing, China
| | - Kun Wang
- Department of Orthopedics, Zhongda Hospital, Southeast University, Nanjing, China
| | - Cong Zhang
- Department of Orthopedics, Zhongda Hospital, Southeast University, Nanjing, China
| | - Jun-Ping Bao
- Medical School of Southeast University, Nanjing, China
| | - Cabral Vlf
- Medical School of Southeast University, Nanjing, China
| | - Jia-Wei Gao
- Medical School of Southeast University, Nanjing, China
| | - Zhi-Min Zhou
- Medical School of Southeast University, Nanjing, China
| | - Xiao-Tao Wu
- Medical School of Southeast University, Nanjing, China.,Department of Orthopedics, Zhongda Hospital, Southeast University, Nanjing, China
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17
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Kan S, Duan M, Liu Y, Wang C, Xie J. Role of Mitochondria in Physiology of Chondrocytes and Diseases of Osteoarthritis and Rheumatoid Arthritis. Cartilage 2021; 13:1102S-1121S. [PMID: 34894777 PMCID: PMC8804744 DOI: 10.1177/19476035211063858] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
PURPOSE OF REVIEW Mitochondria are recognized to be one of the most important organelles in chondrocytes for their role in triphosphate (ATP) generation through aerobic phosphorylation. Mitochondria also participate in many intracellular processes involving modulating reactive oxygen species (ROS), responding to instantaneous hypoxia stress, regulating cytoplasmic transport of calcium ion, and directing mitophagy to maintain the homeostasis of individual chondrocytes. DESIGNS To summarize the specific role of mitochondria in chondrocytes, we screened related papers in PubMed database and the search strategy is ((mitochondria) AND (chondrocyte)) AND (English [Language]). The articles published in the past 5 years were included and 130 papers were studied. RESULTS In recent years, the integrity of mitochondrial structure has been regarded as a prerequisite for normal chondrocyte survival and defect in mitochondrial function has been found in cartilage-related diseases, such as osteoarthritis (OA) and rheumatoid arthritis (RA). However, the understanding of mitochondria in cartilage is still largely limited. The mechanism on how the changes in mitochondrial structure and function directly lead to the occurrence and development of cartilage-related diseases remains to be elusive. CONCLUSION This review aims to summarize the role of mitochondria in chondrocytes under the physiological and pathological changes from ATP generation, calcium homeostasis, redox regulation, mitophagy modulation, mitochondria biogenesis to immune response activation. The enhanced understanding of molecular mechanisms in mitochondria might offer some new cues for cartilage remodeling and pathological intervention.
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Affiliation(s)
- Shiyi Kan
- State Key Laboratory of Oral Diseases,
West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Mengmeng Duan
- State Key Laboratory of Oral Diseases,
West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yang Liu
- State Key Laboratory of Oral Diseases,
West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Chunli Wang
- “111” Project Laboratory of
Biomechanics and Tissue Repair, Bioengineering College, Chongqing University,
Chongqing, China
| | - Jing Xie
- State Key Laboratory of Oral Diseases,
West China Hospital of Stomatology, Sichuan University, Chengdu, China,“111” Project Laboratory of
Biomechanics and Tissue Repair, Bioengineering College, Chongqing University,
Chongqing, China,Lab of Bone & Joint Disease, State
Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan
University, Chengdu, China,Jing Xie, Lab of Bone & Joint Disease,
State Key Laboratory of Oral Diseases, West China Hospital of Stomatology,
Sichuan University, Chengdu 610064, Sichuan, China.
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18
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Zhang J, Hao X, Chi R, Qi J, Xu T. Moderate mechanical stress suppresses the IL-1β-induced chondrocyte apoptosis by regulating mitochondrial dynamics. J Cell Physiol 2021; 236:7504-7515. [PMID: 33821497 DOI: 10.1002/jcp.30386] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 03/22/2021] [Accepted: 03/24/2021] [Indexed: 12/17/2022]
Abstract
Mitochondrial dysfunction contributes to osteoarthritis (OA) onset and progress. Mitochondrial dynamics, coupled with mitophagy, is critical for the maintenance of mitochondrial fitness, involving many cellular processes, such as proliferation and apoptosis. Excessive mechanical stress induces chondrocyte apoptosis; however, the effects of mechanical stress on mitochondrial dynamics remain elusive. In this study, we performed fluorescence staining, flow cytometry, transmission electron microscope, Western blot analysis, and RNA-sequencing to assess the effects of different strength of mechanical stimulation on mitochondrial functions of chondrocyte treated with interleukin-1β (IL-1β). We found that moderate mechanical stress reduced the IL-1β-induced apoptosis by maintaining mitochondrial function and scavenging the reactive oxygen species, while excessive mechanical stress induced strong mitochondrial dysfunction and apoptosis. Moreover, RNAsequencing revealed that mitophagy and mitochondrial dynamics were involved in the regulation of mechanical stress on chondrocyte biology. In addition to the elevated mitophagy, moderate mechanical stress also promoted mitochondrial dynamics by enhancing the expression of MFN1/2 and OPA1 and the translocation of dynamin-related protein 1 from the cytoplasm to the mitochondria. However, an uncoupling of mitochondrial dynamics, characterized by strongly elevated fission, resulted in the unfavorable apoptosis of excessive mechanical stress-stimulated chondrocytes. This study revealed the effects of mechanical stress upon mitochondrial dynamics in chondrocyte.
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Affiliation(s)
- Jiaming Zhang
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaoxia Hao
- Department of Rehabilitation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ruimin Chi
- Department of Rehabilitation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jun Qi
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Tao Xu
- Department of Rehabilitation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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19
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Yin Y, Shen H. Advances in Cardiotoxicity Induced by Altered Mitochondrial Dynamics and Mitophagy. Front Cardiovasc Med 2021; 8:739095. [PMID: 34616789 PMCID: PMC8488107 DOI: 10.3389/fcvm.2021.739095] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Accepted: 08/27/2021] [Indexed: 11/25/2022] Open
Abstract
Mitochondria are the most abundant organelles in cardiac cells, and are essential to maintain the normal cardiac function, which requires mitochondrial dynamics and mitophagy to ensure the stability of mitochondrial quantity and quality. When mitochondria are affected by continuous injury factors, the balance between mitochondrial dynamics and mitophagy is broken. Aging and damaged mitochondria cannot be completely removed in cardiac cells, resulting in energy supply disorder and accumulation of toxic substances in cardiac cells, resulting in cardiac damage and cardiotoxicity. This paper summarizes the specific underlying mechanisms by which various adverse factors interfere with mitochondrial dynamics and mitophagy to produce cardiotoxicity and emphasizes the crucial role of oxidative stress in mitophagy. This review aims to provide fresh ideas for the prevention and treatment of cardiotoxicity induced by altered mitochondrial dynamics and mitophagy.
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Affiliation(s)
- Yiyuan Yin
- Department of Emergency Medicine, ShengJing Hospital of China Medical University, Shenyang, China
| | - Haitao Shen
- Department of Emergency Medicine, ShengJing Hospital of China Medical University, Shenyang, China
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20
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Kim D, Song J, Jin EJ. BNIP3-Dependent Mitophagy via PGC1α Promotes Cartilage Degradation. Cells 2021; 10:cells10071839. [PMID: 34360007 PMCID: PMC8304751 DOI: 10.3390/cells10071839] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 07/16/2021] [Accepted: 07/18/2021] [Indexed: 12/14/2022] Open
Abstract
Since mitochondria are suggested to be important regulators in maintaining cartilage homeostasis, turnover of mitochondria through mitochondrial biogenesis and mitochondrial degradation may play an important role in the pathogenesis of osteoarthritis (OA). Here, we found that mitochondrial dysfunction is closely associated with OA pathogenesis and identified the peroxisome proliferator-activated receptor-gamma co-activator 1-alpha (PGC1α) as a potent regulator. The expression level of PGC1α was significantly decreased under OA conditions, and knockdown of PGC1α dramatically elevated the cartilage degradation by upregulating cartilage degrading enzymes and apoptotic cell death. Interestingly, the knockdown of PGC1α activated the parkin RBR E3 ubiquitin protein ligase (PRKN)-independent selective mitochondria autophagy (mitophagy) pathway through the upregulation of BCL2 and adenovirus E1B 19-kDa-interacting protein 3 (BNIP3). The overexpression of BNIP3 stimulated mitophagy and cartilage degradation by upregulating cartilage-degrading enzymes and chondrocyte death. We identified microRNA (miR)-126-5p as an upstream regulator for PGC1α and confirmed the direct binding between miR-126-5p and 3′ untranslated region (UTR) of PGC1α. An in vivo OA mouse model induced by the destabilization of medial meniscus (DMM) surgery, and the delivery of antago-miR-126 via intra-articular injection significantly decreased cartilage degradation. In sum, the loss of PGC1α in chondrocytes due to upregulation of miR-126-5p during OA pathogenesis resulted in the activation of PRKN-independent mitophagy through the upregulation of BNIP3 and stimulated cartilage degradation and apoptotic death of chondrocytes. Therefore, the regulation of PGC1α:BNIP3 mitophagy axis could be of therapeutic benefit to cartilage-degrading diseases.
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MESH Headings
- Animals
- Antagomirs/genetics
- Antagomirs/metabolism
- Arthroplasty, Replacement, Knee/methods
- Base Sequence
- Cartilage, Articular/metabolism
- Cartilage, Articular/pathology
- Chondrocytes/metabolism
- Chondrocytes/pathology
- Disease Models, Animal
- Gene Expression Regulation
- Humans
- Membrane Proteins/genetics
- Membrane Proteins/metabolism
- Menisci, Tibial/metabolism
- Menisci, Tibial/pathology
- Mice
- Mice, Inbred C57BL
- MicroRNAs/antagonists & inhibitors
- MicroRNAs/genetics
- MicroRNAs/metabolism
- Mitochondria/metabolism
- Mitochondria/pathology
- Mitochondrial Proteins/genetics
- Mitochondrial Proteins/metabolism
- Mitophagy/genetics
- Osteoarthritis/genetics
- Osteoarthritis/metabolism
- Osteoarthritis/pathology
- Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alpha/antagonists & inhibitors
- Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alpha/genetics
- Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alpha/metabolism
- Primary Cell Culture
- Proto-Oncogene Proteins c-bcl-2/genetics
- Proto-Oncogene Proteins c-bcl-2/metabolism
- RNA, Small Interfering/genetics
- RNA, Small Interfering/metabolism
- Signal Transduction
- Ubiquitin-Protein Ligases/genetics
- Ubiquitin-Protein Ligases/metabolism
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Affiliation(s)
- Deokha Kim
- Department of Biological Sciences, College of Natural Sciences, Wonkwang University, Iksan 54538, Jeonbuk, Korea; (D.K.); (J.S.)
| | - Jinsoo Song
- Department of Biological Sciences, College of Natural Sciences, Wonkwang University, Iksan 54538, Jeonbuk, Korea; (D.K.); (J.S.)
- Integrated Omics Institute, Wonkwang University, Iksan 54538, Jeonbuk, Korea
| | - Eun-Jung Jin
- Department of Biological Sciences, College of Natural Sciences, Wonkwang University, Iksan 54538, Jeonbuk, Korea; (D.K.); (J.S.)
- Integrated Omics Institute, Wonkwang University, Iksan 54538, Jeonbuk, Korea
- Correspondence: ; Tel.: +82-63-850-6192; Fax: +82-63-850-6197
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21
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Chen Y, Wu YY, Si HB, Lu YR, Shen B. Mechanistic insights into AMPK-SIRT3 positive feedback loop-mediated chondrocyte mitochondrial quality control in osteoarthritis pathogenesis. Pharmacol Res 2021; 166:105497. [PMID: 33609697 DOI: 10.1016/j.phrs.2021.105497] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 02/09/2021] [Accepted: 02/14/2021] [Indexed: 02/08/2023]
Abstract
Osteoarthritis (OA) is a major cause of disability in the elderly population and represents a significant public health problem and socioeconomic burden worldwide. However, no disease-modifying therapeutics are currently available for OA due to an insufficient understanding of the pathogenesis of this disability. As a unique cell type in cartilage, chondrocytes are essential for cartilage homeostasis and play a critical role in OA pathogenesis. Mitochondria are important metabolic centers in chondrocytes and contribute to cell survival, and mitochondrial quality control (MQC) is an emerging mechanism for maintaining cell homeostasis. An increasing number of recent studies have demonstrated that dysregulation of the key processes of chondrocyte MQC, which involve mitochondrial redox, biogenesis, dynamics, and mitophagy, is associated with OA pathogenesis and can be regulated by the chondroprotective molecules 5' adenosine monophosphate-activated protein kinase (AMPK) and sirtuin 3 (SIRT3). Moreover, AMPK and SIRT3 regulate each other, and their expression and activity are always consistent in chondrocytes, which suggests the existence of an AMPK-SIRT3 positive feedback loop (PFL). Although the precise mechanisms are not fully elucidated and need further validation, the current literature indicates that this AMPK-SIRT3 PFL regulates OA development and progression, at least partially by mediating chondrocyte MQC. Therefore, understanding the mechanisms of AMPK-SIRT3 PFL-mediated chondrocyte MQC in OA pathogenesis might yield new ideas and potential targets for subsequent research on the OA pathomechanism and therapeutics.
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Affiliation(s)
- Yang Chen
- Department of Orthopaedics, Key Laboratory of Transplant Engineering and Immunology, Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yong-Yao Wu
- West China College of Stomatology, Sichuan University, Chengdu 610041, China
| | - Hai-Bo Si
- Department of Orthopaedics, Key Laboratory of Transplant Engineering and Immunology, Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu 610041, China.
| | - Yan-Rong Lu
- Department of Orthopaedics, Key Laboratory of Transplant Engineering and Immunology, Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Bin Shen
- Department of Orthopaedics, Key Laboratory of Transplant Engineering and Immunology, Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu 610041, China
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22
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Mao X, Fu P, Wang L, Xiang C. Mitochondria: Potential Targets for Osteoarthritis. Front Med (Lausanne) 2020; 7:581402. [PMID: 33324661 PMCID: PMC7726420 DOI: 10.3389/fmed.2020.581402] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 10/19/2020] [Indexed: 12/12/2022] Open
Abstract
Osteoarthritis (OA) is a common and disabling joint disorder that is mainly characterized by cartilage degeneration and narrow joint spaces. The role of mitochondrial dysfunction in promoting the development of OA has gained much attention. Targeting endogenous molecules to improve mitochondrial function is a potential treatment for OA. Moreover, research on exogenous drugs to improve mitochondrial function in OA based on endogenous molecular targets has been accomplished. In addition, stem cells and exosomes have been deeply researched in the context of cartilage regeneration, and these factors both reverse mitochondrial dysfunctions. Thus, we hypothesize that biomedical approaches will be applied to the treatment of OA. Furthermore, we have summarized the global status of mitochondria and osteoarthritis research in the past two decades, which will contribute to the research field and the development of novel treatment strategies for OA.
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Affiliation(s)
- Xingjia Mao
- Department of Orthopedic, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Panfeng Fu
- Department of Respiratory and Critical Care, The Affiliated Hospital of Medical School of Ningbo University, Ningbo, China
| | - Linlin Wang
- Department of Basic Medicine Sciences, The School of Medicine of Zhejiang University, Hangzhou, China
| | - Chuan Xiang
- Department of Orthopedic, The Second Hospital of Shanxi Medical University, Taiyuan, China
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23
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Wang FS, Kuo CW, Ko JY, Chen YS, Wang SY, Ke HJ, Kuo PC, Lee CH, Wu JC, Lu WB, Tai MH, Jahr H, Lian WS. Irisin Mitigates Oxidative Stress, Chondrocyte Dysfunction and Osteoarthritis Development through Regulating Mitochondrial Integrity and Autophagy. Antioxidants (Basel) 2020; 9:antiox9090810. [PMID: 32882839 PMCID: PMC7555738 DOI: 10.3390/antiox9090810] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 08/21/2020] [Accepted: 08/25/2020] [Indexed: 12/17/2022] Open
Abstract
Compromised autophagy and mitochondrial dysfunction downregulate chondrocytic activity, accelerating the development of osteoarthritis (OA). Irisin, a cleaved form of fibronectin type III domain containing 5 (FNDC5), regulates bone turnover and muscle homeostasis. Little is known about the effect of Irisin on chondrocytes and the development of osteoarthritis. This study revealed that human osteoarthritic articular chondrocytes express decreased level of FNDC5 and autophagosome marker LC3-II but upregulated levels of oxidative DNA damage marker 8-hydroxydeoxyguanosine (8-OHdG) and apoptosis. Intra-articular administration of Irisin further alleviated symptoms of medial meniscus destabilization, like cartilage erosion and synovitis, while improved the gait profiles of the injured legs. Irisin treatment upregulated autophagy, 8-OHdG and apoptosis in chondrocytes of the injured cartilage. In vitro, Irisin improved IL-1β-mediated growth inhibition, loss of specific cartilage markers and glycosaminoglycan production by chondrocytes. Irisin also reversed Sirt3 and UCP-1 pathways, thereby improving mitochondrial membrane potential, ATP production, and catalase to attenuated IL-1β-mediated reactive oxygen radical production, mitochondrial fusion, mitophagy, and autophagosome formation. Taken together, FNDC5 loss in chondrocytes is correlated with human knee OA. Irisin repressed inflammation-mediated oxidative stress and extracellular matrix underproduction through retaining mitochondrial biogenesis, dynamics and autophagic program. Our analyses shed new light on the chondroprotective actions of this myokine, and highlight the remedial effects of Irisin on OA development.
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Affiliation(s)
- Feng-Sheng Wang
- Core Laboratory for Phenomics and Diagnostics, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan; (F.-S.W.); (C.-W.K.); (Y.-S.C.); (S.-Y.W.); (H.-J.K.); (P.-C.K.); (C.-H.L.)
- Department of Medical Research, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan
- Center for Mitochondrial Research and Medicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan
- Graduate Institute of Clinical Medical Science, Chang Gung University College of Medicine, Kaohsiung 83301, Taiwan
| | - Chung-Wen Kuo
- Core Laboratory for Phenomics and Diagnostics, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan; (F.-S.W.); (C.-W.K.); (Y.-S.C.); (S.-Y.W.); (H.-J.K.); (P.-C.K.); (C.-H.L.)
- Department of Medical Research, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan
| | - Jih-Yang Ko
- Department of Orthopedic Surgery, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan;
| | - Yu-Shan Chen
- Core Laboratory for Phenomics and Diagnostics, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan; (F.-S.W.); (C.-W.K.); (Y.-S.C.); (S.-Y.W.); (H.-J.K.); (P.-C.K.); (C.-H.L.)
- Department of Medical Research, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan
| | - Shao-Yu Wang
- Core Laboratory for Phenomics and Diagnostics, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan; (F.-S.W.); (C.-W.K.); (Y.-S.C.); (S.-Y.W.); (H.-J.K.); (P.-C.K.); (C.-H.L.)
- Department of Medical Research, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan
| | - Huei-Jing Ke
- Core Laboratory for Phenomics and Diagnostics, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan; (F.-S.W.); (C.-W.K.); (Y.-S.C.); (S.-Y.W.); (H.-J.K.); (P.-C.K.); (C.-H.L.)
- Department of Medical Research, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan
| | - Pei-Chen Kuo
- Core Laboratory for Phenomics and Diagnostics, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan; (F.-S.W.); (C.-W.K.); (Y.-S.C.); (S.-Y.W.); (H.-J.K.); (P.-C.K.); (C.-H.L.)
- Department of Medical Research, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan
| | - Chin-Huei Lee
- Core Laboratory for Phenomics and Diagnostics, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan; (F.-S.W.); (C.-W.K.); (Y.-S.C.); (S.-Y.W.); (H.-J.K.); (P.-C.K.); (C.-H.L.)
- Department of Medical Research, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan
| | - Jian-Ching Wu
- Biobank and Tissue Bank, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan;
| | - Wen-Bin Lu
- Institute of Biomedical Sciences, National Sun Yat-Sun University, Kaohsiung 804, Taiwan; (W.-B.L.); (M.-H.T.)
| | - Ming-Hong Tai
- Institute of Biomedical Sciences, National Sun Yat-Sun University, Kaohsiung 804, Taiwan; (W.-B.L.); (M.-H.T.)
| | - Holger Jahr
- Department of Anatomy and Cell Biology, University Hospital RWTH Aachen, 52074 Aachen, Germany
- Department of Orthopedic Surgery, Maastricht University Medical Center, 6229 ER Maastricht, The Netherlands
- Correspondence: (H.J.); (W.-S.L.); Tel.: +886-7-731-7123 (W.-S.L.)
| | - Wei-Shiung Lian
- Core Laboratory for Phenomics and Diagnostics, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan; (F.-S.W.); (C.-W.K.); (Y.-S.C.); (S.-Y.W.); (H.-J.K.); (P.-C.K.); (C.-H.L.)
- Department of Medical Research, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan
- Center for Mitochondrial Research and Medicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan
- Correspondence: (H.J.); (W.-S.L.); Tel.: +886-7-731-7123 (W.-S.L.)
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Meyers AK, Zhu X. The NLRP3 Inflammasome: Metabolic Regulation and Contribution to Inflammaging. Cells 2020; 9:cells9081808. [PMID: 32751530 PMCID: PMC7463618 DOI: 10.3390/cells9081808] [Citation(s) in RCA: 98] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 07/21/2020] [Accepted: 07/28/2020] [Indexed: 12/13/2022] Open
Abstract
In response to inflammatory stimuli, immune cells reconfigure their metabolism and bioenergetics to generate energy and substrates for cell survival and to launch immune effector functions. As a critical component of the innate immune system, the nucleotide-binding and oligomerization domain, leucine-rich repeat, and pyrin domain-containing 3 (NLRP3) inflammasome can be activated by various endogenous and exogenous danger signals. Activation of this cytosolic multiprotein complex triggers the release of the pro-inflammatory cytokines interleukin (IL)-1β and IL-18 and initiates pyroptosis, an inflammatory form of programmed cell death. The NLRP3 inflammasome fuels both chronic and acute inflammatory conditions and is critical in the emergence of inflammaging. Recent advances have highlighted that various metabolic pathways converge as potent regulators of the NLRP3 inflammasome. This review focuses on our current understanding of the metabolic regulation of the NLRP3 inflammasome activation, and the contribution of the NLRP3 inflammasome to inflammaging.
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Affiliation(s)
- Allison K. Meyers
- Department of Microbiology and Immunology, Wake Forest School of Medicine, Winston-Salem, NC 27157, USA;
| | - Xuewei Zhu
- Department of Microbiology and Immunology, Wake Forest School of Medicine, Winston-Salem, NC 27157, USA;
- Department of Internal Medicine, Section of Molecular Medicine, Wake Forest School of Medicine, Winston-Salem, NC 27157, USA
- Correspondence: ; Tel.: +1-336-713-1445
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