51
|
Bai RJ, Liu D, Li YS, Tian J, Yu DJ, Li HZ, Zhang FJ. OPN inhibits autophagy through CD44, integrin and the MAPK pathway in osteoarthritic chondrocytes. Front Endocrinol (Lausanne) 2022; 13:919366. [PMID: 36034459 PMCID: PMC9411521 DOI: 10.3389/fendo.2022.919366] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 07/11/2022] [Indexed: 11/13/2022] Open
Abstract
Background To investigate whether osteopontin (OPN) affects autophagy in human osteoarthritic chondrocytes and determine the roles of CD44, αvβ3 integrin and the Mitogen-activated protein kinase (MAPK) pathway in this progress. Methods First, we compared the autophagy levels in the human osteoarthritis (OA) and normal cartilage, then, we cultured human OA chondrocytes in vitro and treated cells with recombinant human OPN (rhOPN) to determine autophagy changes. Next, the anti-CD44 and anti-CD51/61 monoclonal antibodies (Abs) or isotype IgG were used to determine the possible role of CD44 and αvβ3 integrin; subsequently, an inhibitor of the ERK MAPK pathway was used to investigate the role of ERK MAPK. Western blotting was used to measure the Beclin1, LC3 II and MAPK proteins expressions, mRFP-GFP-LC3 confocal imaging and transmission electron microscopy were also used to detect the autophagy levels. Cell Counting Kit-8 (CCK-8) was used to assay the proliferation and activity of chondrocytes. Results The LC3 protein was greatly decreased in OA cartilage compared to normal cartilage, and OPN suppressed the autophagy activity in chondrocytes in vitro. Blocking experiments with anti-CD44 and anti-CD51/61 Abs indicated that OPN could suppress the expression of LC3II and Beclin1 through αvβ3 integrin and CD44. Our results also indicated that the ratio of p-ERK/ERK but not p-P38/P38 and p-JNK/JNK was increased after the rhOPN treatment. The ERK inhibitor inhibited the activity of OPN in the suppression of autophagy, and the CCK-8 results showed that rhOPN could promote chondrocyte proliferation. Conclusion OPN inhibited chondrocyte autophagy through CD44 and αvβ3 integrin receptors and via the ERK MAPK signaling pathway.
Collapse
Affiliation(s)
- Rui-Jun Bai
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, China
| | - Di Liu
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, China
| | - Yu-Sheng Li
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Jian Tian
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Deng-Jie Yu
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, China
| | - Heng-Zhen Li
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, China
| | - Fang-Jie Zhang
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
- Department of Emergency Medicine, Xiangya Hospital, Central South University, Changsha, China
| |
Collapse
|
52
|
Sanchez C, Zappia J, Lambert C, Foguenne J, Dierckxsens Y, Dubuc JE, Delcour JP, Gothot A, Henrotin Y. Curcuma longa and Boswellia serrata Extracts Modulate Different and Complementary Pathways on Human Chondrocytes In Vitro: Deciphering of a Transcriptomic Study. Front Pharmacol 2022; 13:931914. [PMID: 36034822 PMCID: PMC9403192 DOI: 10.3389/fphar.2022.931914] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 06/20/2022] [Indexed: 12/19/2022] Open
Abstract
Objectives:Curcuma longa (CL) and Boswellia serrata (BS) extracts are used to relieve osteoarthritis symptoms. The aim of this in vitro study was to investigate their mechanisms of action at therapeutic plasmatic concentrations on primary human osteoarthritic (OA) chondrocytes. Methods: BS (10–50 μg/ml) and CL (0.4–2 μg/ml corresponding to 1–5 µM of curcumin) were evaluated separately or in combination on primary chondrocytes isolated from 17 OA patients and cultured in alginate beads. Ten patients were used for RNA-sequencing analysis. Proteomic confirmation was performed either by immunoassays in the culture supernatant or by flow cytometry for cell surface markers after 72 h of treatment. Results: Significant gene expression modifications were already observed after 6 h of treatment at the highest dose of CL (2 μg/ml) while BS was significantly effective only after 24 h of treatment irrespective of the concentration tested. The most over-expressed genes by CL were anti-oxidative, detoxifying, and cytoprotective genes involved in the Nrf2 pathway. Down-regulated genes were principally pro-inflammatory cytokines and chemokines. Inversely, BS anti-oxidant/detoxifying activities were related to the activation of Nrf1 and PPARα pathways. BS anti-inflammatory effects were associated with the increase in GDF15, decrease in cholesterol cell intake and fatty acid metabolism-involved genes, and down-regulation of Toll-like receptors (TLRs) activation. Similar to CL, BS down-regulated ADAMTS1, 5, and MMP3, 13 genes expression. The combination of both CL and BS was significantly more effective than CL or BS alone on many genes such as IL-6, CCL2, ADAMTS1, and 5. Conclusion: BS and CL have anti-oxidative, anti-inflammatory, and anti-catabolic activities, suggesting a protective effect of these extracts on cartilage. Even if they share some mechanism of action, the two extracts act mainly on distinct pathways, and with different time courses, justifying their association to treat osteoarthritis.
Collapse
Affiliation(s)
- Christelle Sanchez
- MusculoSKeletal Innovative Research Lab, Center for Interdisciplinary Research on Medicines, University of Liège, Liège, Belgium
- Center for Interdisciplinary Research on Medicines, University of Liège, Liege, Belgium
- *Correspondence: Christelle Sanchez,
| | - Jérémie Zappia
- MusculoSKeletal Innovative Research Lab, Center for Interdisciplinary Research on Medicines, University of Liège, Liège, Belgium
- Center for Interdisciplinary Research on Medicines, University of Liège, Liege, Belgium
| | - Cécile Lambert
- MusculoSKeletal Innovative Research Lab, Center for Interdisciplinary Research on Medicines, University of Liège, Liège, Belgium
- Center for Interdisciplinary Research on Medicines, University of Liège, Liege, Belgium
| | - Jacques Foguenne
- Department of Laboratory Hematology, Liege University Hospital, Liege, Belgium
| | | | - Jean-Emile Dubuc
- MusculoSKeletal Innovative Research Lab, Center for Interdisciplinary Research on Medicines, University of Liège, Liège, Belgium
- Cliniques Universitaires de St Luc, Brussels, Belgium
| | | | - André Gothot
- Department of Laboratory Hematology, Liege University Hospital, Liege, Belgium
| | - Yves Henrotin
- MusculoSKeletal Innovative Research Lab, Center for Interdisciplinary Research on Medicines, University of Liège, Liège, Belgium
- Center for Interdisciplinary Research on Medicines, University of Liège, Liege, Belgium
- Physical Therapy and Rehabilitation Department, Princess Paola Hospital, Marche-en-Famenne, Belgium
| |
Collapse
|
53
|
Sun T, Wang F, Hu G, Li Z. Salvianolic acid B activates chondrocytes autophagy and reduces chondrocyte apoptosis in obese mice via the KCNQ1OT1/miR-128-3p/SIRT1 signaling pathways. Nutr Metab (Lond) 2022; 19:53. [PMID: 35922815 PMCID: PMC9351265 DOI: 10.1186/s12986-022-00686-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 06/10/2022] [Indexed: 11/26/2022] Open
Abstract
Purpose Salvianolic acid B (Sal B) possesses strong anti-inflammatory and antioxidant activity. This study aims to explore the underlying mechanism of Sal B to improve the obesity-related osteoarthritis (OA). Methods C57BL/6 J male mice were fed with a normal control diet (NCD), a high fat diet (HFD), or HFD with Sal B (25 mg/kg), and mouse body weights and osteoarticular inflammatory factor levels were examined. Mouse chondrogenic cell line ATDC5 were transfected with lncRNA KCNQ1 overlapping transcript 1 small hairpin RNA (KCNQ1OT1 shRNA), miR-128-3p mimic or Sirtuin-1 small interfering RNA (SIRT1 siRNA), then stimulated with Palmitic acid (PA) followed by the treatment of Sal B. Then, inflammatory response, apoptosis, and autophagy of ATDC5 cells in different groups were detected. Results Sal B reduced the body weight, decreased the levels of inflammatory markers, and improved cartilage damage in OA mice fed with HFD. KCNQ1OT1 was downregulated in OA mice fed with HFD, and PA-stimulated ATDC5 cells. Sal B protected ATDC5 cells against PA-mediated inflammation, apoptosis, and the inhibition of autophagy, while knockdown of KCNQ1OT1 reversed these results. KCNQ1OT1 was found to be functioned as a ceRNA to bind and downregulate the expression of miR-128-3p that was upregulated in PA-induced cells. Furthermore, SIRT1 was verified as a target of miR-128-3p. MiR-128-3p overexpression reversed the effects of Sal B on inflammatory response, apoptosis, and autophagy in PA-stimulated cells, and knockdown of SIRT1 displayed the similar results. Conclusion Sal B exerted a chondroprotective effect by upregulating KCNQ1OT1, which indicates Sal B can used for a therapeutic agent in obesity-related OA. Supplementary Information The online version contains supplementary material available at 10.1186/s12986-022-00686-0.
Collapse
Affiliation(s)
- Tianwen Sun
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, No. 126 of Xiantai Street, Changchun, 130021, Jilin Province, China
| | - Fei Wang
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, No. 126 of Xiantai Street, Changchun, 130021, Jilin Province, China
| | - Gaojian Hu
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, No. 126 of Xiantai Street, Changchun, 130021, Jilin Province, China
| | - Zhizhou Li
- Department of Orthopedics, China-Japan Union Hospital of Jilin University, No. 126 of Xiantai Street, Changchun, 130021, Jilin Province, China.
| |
Collapse
|
54
|
Arra M, Swarnkar G, Adapala NS, Naqvi SK, Cai L, Rai MF, Singamaneni S, Mbalaviele G, Brophy R, Abu-Amer Y. Glutamine metabolism modulates chondrocyte inflammatory response. eLife 2022; 11:e80725. [PMID: 35916374 PMCID: PMC9371604 DOI: 10.7554/elife.80725] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 08/01/2022] [Indexed: 12/04/2022] Open
Abstract
Osteoarthritis is the most common joint disease in the world with significant societal consequences but lacks effective disease-modifying interventions. The pathophysiology consists of a prominent inflammatory component that can be targeted to prevent cartilage degradation and structural defects. Intracellular metabolism has emerged as a culprit of the inflammatory response in chondrocytes, with both processes co-regulating each other. The role of glutamine metabolism in chondrocytes, especially in the context of inflammation, lacks a thorough understanding and is the focus of this work. We display that mouse chondrocytes utilize glutamine for energy production and anabolic processes. Furthermore, we show that glutamine deprivation itself causes metabolic reprogramming and decreases the inflammatory response of chondrocytes through inhibition of NF-κB activity. Finally, we display that glutamine deprivation promotes autophagy and that ammonia is an inhibitor of autophagy. Overall, we identify a relationship between glutamine metabolism and inflammatory signaling and display the need for increased study of chondrocyte metabolic systems.
Collapse
Affiliation(s)
- Manoj Arra
- Department of Orthopedic Surgery, Washington University School of Medicine, St Louis, United States
| | - Gaurav Swarnkar
- Department of Orthopedic Surgery, Washington University School of Medicine, St Louis, United States
| | - Naga Suresh Adapala
- Department of Orthopedic Surgery, Washington University School of Medicine, St Louis, United States
| | - Syeda Kanwal Naqvi
- Department of Orthopedic Surgery, Washington University School of Medicine, St Louis, United States
| | - Lei Cai
- Department of Orthopedic Surgery, Washington University School of Medicine, St Louis, United States
| | - Muhammad Farooq Rai
- Department of Orthopedic Surgery, Washington University School of Medicine, St Louis, United States
| | - Srikanth Singamaneni
- Department of Mechanical Engineering and Material Sciences, Washington University School of Medicine, St Louis, United States
| | - Gabriel Mbalaviele
- Bone and Mineral Division, Department of Medicine, Washington University School of Medicine, St Louis, United States
| | - Robert Brophy
- Department of Orthopedic Surgery, Washington University School of Medicine, St Louis, United States
| | - Yousef Abu-Amer
- Department of Orthopedic Surgery, Washington University School of Medicine, St Louis, United States
- Shriners Hospital for Children, Saint Louis, United States
| |
Collapse
|
55
|
Lin H, Salech F, Lim A, Vogrin S, Duque G. The effect of rapamycin and its analogues on age-related musculoskeletal diseases: a systematic review. Aging Clin Exp Res 2022; 34:2317-2333. [PMID: 35861940 DOI: 10.1007/s40520-022-02190-0] [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] [Received: 03/30/2022] [Accepted: 06/23/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Preclinical studies have shown a therapeutic role of the mechanistic/mammalian target of rapamycin complex 1 (mTORC1) inhibition with rapamycin and its analogues (rapalogues) on several age-related musculoskeletal disorders (MSKD). However, the applicability to humans of these findings is unknown. OBJECTIVE To assess the efficacy of rapalogues on age-related MSKD in humans. METHODS We conducted a systematic review according to the PRISMA guidelines. MEDLINE, EMBase, EMCare, and Cochrane Central Registry of Controlled Trials were searched for original studies examining the effects of rapalogues on outcomes linked to the age-related MSKD in humans. This review is registered in the PROSPERO database (University of New York; registration number CRD42020208167). RESULTS Fourteen studies met the inclusion criteria and were analyzed. The effect of rapamycin and other rapalogues, including everolimus and temsirolimus, on bone, muscle and joints have been evaluated in humans; however, considerable variability concerning the subjects' age, inclusion criteria, and drug administration protocols was identified. In bone, the use of rapamycin is associated with a decrease in bone resorption markers dependent on osteoclastic activity. In muscle, rapamycin and rapalogues are associated with a reduction in muscle protein synthesis in response to exercise. In the context of rheumatoid arthritis, rapamycin and rapalogues have been associated with clinical improvement and a decrease in inflammatory activity. CONCLUSION Although there are studies that have evaluated the effect of rapamycin and rapalogues on MSKD in humans, the evidence supporting its use is still incipient, and the clinical implication of these results on the development of osteoporosis, sarcopenia, or osteosarcopenia has not been studied, opening an interesting field for future research.
Collapse
Affiliation(s)
- Hong Lin
- Australian Institute for Musculoskeletal Science (AIMSS), Geroscience and Osteosarcopenia Research Program, The University of Melbourne and Western Health, VIC, St. Albans, Australia.,Department of Medicine - Western Health, The University of Melbourne, VIC, St Albans, Australia.,Melbourne Medical School, The University of Melbourne, St Albans, VIC, Australia
| | - Felipe Salech
- Sección de Geriatría, Clínica de Caídas Y Fracturas, Hospital Clínico Universidad de Chile, Santiago, Chile.,Centro de Investigación Clínica Avanzada (CICA), Hospital Clínico Universidad de Chile, Santiago, Chile.,Centro de Gerociencia, Salud Mental Y Metabolismo (GERO), Santiago, Chile
| | - Anthony Lim
- Australian Institute for Musculoskeletal Science (AIMSS), Geroscience and Osteosarcopenia Research Program, The University of Melbourne and Western Health, VIC, St. Albans, Australia.,Department of Medicine - Western Health, The University of Melbourne, VIC, St Albans, Australia.,Melbourne Medical School, The University of Melbourne, St Albans, VIC, Australia
| | - Sara Vogrin
- Australian Institute for Musculoskeletal Science (AIMSS), Geroscience and Osteosarcopenia Research Program, The University of Melbourne and Western Health, VIC, St. Albans, Australia.,Melbourne Medical School, The University of Melbourne, St Albans, VIC, Australia
| | - Gustavo Duque
- Australian Institute for Musculoskeletal Science (AIMSS), Geroscience and Osteosarcopenia Research Program, The University of Melbourne and Western Health, VIC, St. Albans, Australia. .,Department of Medicine - Western Health, The University of Melbourne, VIC, St Albans, Australia. .,Melbourne Medical School, The University of Melbourne, St Albans, VIC, Australia.
| |
Collapse
|
56
|
Bai R, Miao MZ, Li H, Wang Y, Hou R, He K, Wu X, Jin H, Zeng C, Cui Y, Lei G. Increased Wnt/β-catenin signaling contributes to autophagy inhibition resulting from a dietary magnesium deficiency in injury-induced osteoarthritis. Arthritis Res Ther 2022; 24:165. [PMID: 35804467 PMCID: PMC9264717 DOI: 10.1186/s13075-022-02848-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 06/20/2022] [Indexed: 02/06/2023] Open
Abstract
Background Dietary magnesium deficiency, which is common in modern diet, has been associated with osteoarthritis (OA) susceptibility. Despite this clinical association, no study has addressed if dietary magnesium deficiency accelerates OA development, especially at molecular level. This study aimed to explore aggravating effects of dietary magnesium deficiency on cartilage damage in an injury-induced murine OA model and to determine the underlying mechanism. Methods Twelve-week-old C57BL/6J mice subject to injury-induced OA modeling were randomized into different diet groups in which the mice were fed a diet with daily recommended magnesium content (500 mg/kg) or diets with low magnesium content (100 or 300 mg/kg). Articular cartilage damage was evaluated using the OARSI score. To determine molecular mechanisms in vitro, mouse chondrocytes were treated with media of low magnesium conditions at 0.1 and 0.4 mM, compared with normal magnesium condition at 0.7 mM as control. Anabolic and catabolic factors, autophagy markers, β-catenin, Wnt ligands, and a magnesium channel transient receptor potential cation channel subfamily member 7 (TRPM7) were analyzed by quantitative real-time PCR and immunoblotting. Autolysosomes were detected by DALGreen staining via fluorescence microscopy and autophagosomes were evaluated by transmission electron microscopy. Autophagy markers, β-catenin, and TRPM7 were assessed in vivo in the mouse cartilage, comparing between dietary magnesium deficiency and normal diet, by immunohistochemistry. Results Dietary magnesium deficiency aggravated injury-induced cartilage damage, indicated by significant higher OARSI scores. Autophagy markers LC3-II and Beclin-1 were decreased both in low magnesium diet-fed mice and low magnesium-treated chondrocytes. The number of autolysosomes and autophagosomes was also reduced under low magnesium conditions. Moreover, magnesium deficiency induced decreased anabolic and increased catabolic effect of chondrocytes which could be restored by autophagy activator rapamycin. In addition, reduced autophagy under low magnesium conditions is mediated by activated Wnt/β-catenin signaling. The expression of TRPM7 also decreased in low magnesium diet-fed mice, indicating that downstream changes could be regulated through this channel. Conclusions Dietary magnesium deficiency contributes to OA development, which is mediated by reduced autophagy through Wnt/β-catenin signaling activation. These findings indicated potential benefits of adequate dietary magnesium for OA patients or those individuals at high risk of OA. Supplementary Information The online version contains supplementary material available at 10.1186/s13075-022-02848-0.
Collapse
Affiliation(s)
- Ruijun Bai
- Department of Orthopaedics, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan, China
| | - Michael Z Miao
- Thurston Arthritis Research Center, Division of Rheumatology, Allergy, and Immunology, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.,Curriculum in Oral and Craniofacial Biomedicine, Adams School of Dentistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Hui Li
- Department of Orthopaedics, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan, China
| | - Yiqing Wang
- Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.,Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Ruixue Hou
- Department of Population Health Science and Policy, Icahn School of Medical at Mount Sinai, New York, NY, USA
| | - Ke He
- Hunan Key Laboratory of Joint Degeneration and Injury, Changsha, China
| | - Xuan Wu
- Hunan Key Laboratory of Joint Degeneration and Injury, Changsha, China
| | - Hongyu Jin
- Department of Orthopaedics, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan, China
| | - Chao Zeng
- Department of Orthopaedics, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan, China.,Hunan Key Laboratory of Joint Degeneration and Injury, Changsha, China.,Hunan Engineering Research Center of Osteoarthritis, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Yang Cui
- Thurston Arthritis Research Center, Division of Rheumatology, Allergy, and Immunology, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA. .,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China. .,Xiangya International Medical Center, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, Hunan, China.
| | - Guanghua Lei
- Department of Orthopaedics, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, Hunan, China. .,Hunan Key Laboratory of Joint Degeneration and Injury, Changsha, China. .,Hunan Engineering Research Center of Osteoarthritis, Changsha, China. .,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China.
| |
Collapse
|
57
|
CDDO-Im ameliorates osteoarthritis and inhibits chondrocyte apoptosis in mice via enhancing Nrf2-dependent autophagy. Acta Pharmacol Sin 2022; 43:1793-1802. [PMID: 34754093 PMCID: PMC9253092 DOI: 10.1038/s41401-021-00782-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 09/21/2021] [Indexed: 12/29/2022] Open
Abstract
Osteoarthritis (OA) is the most prevalent chronic degenerative joint disease with few treatment options. The pathogenesis of OA is characterized by sustained inflammation, oxidative stress and chondrocyte apoptosis that eventually lead to cartilage degradation and joint dysfunction. In the present study, we identified a synthetic triterpenoid CDDO-Im(1-[2-cyano-3,12-dioxooleana-1,9(11)-dien-28-oyl] imidazole) as an activator of Nrf2 (nuclear factor erythroid 2-related factor 2) that displayed strong anti-OA effects. We showed that CDDO-Im (20 nM) significantly alleviated TNF-α-induced apoptosis of primary human chondrocytes and extracellular matrix degradation. In a mouse OA model incurred by DMM (destabilization of medial meniscus), administration of CDDO-Im (2.5 mg/kg, ip, every other day for 8 weeks) effectively reduced knee joint cartilage erosion and serum levels of inflammatory cytokines IL-1β and IL-6. We revealed that CDDO-Im (20 nM) significantly enhanced autophagy activities in chondrocytes, whereas the autophagy inhibition by chloroquine (CQ, 50 μM) or 3-methyladenine (3-MA, 5 mM) abrogated the anti-apoptosis and chondroprotective effects of CDDO-Im in TNF-α-treated chondrocytes. Moreover, we confirmed that CDDO-Im (1-20 nM) dose-dependently activated Nrf2 pathway in TNF-α-treated chondrocytes, and its chondroprotective and autophagy-enhancing effects were significantly diminished when Nrf2 signaling was blocked by Nrf2 inhibitor ML385 (20 μM) or siRNA-mediated Nrf2 knockdown. Together, our results demonstrate that CDDO-Im exhibits prominent chondroprotective and anti-OA activities owing to its Nrf2 activation and autophagy-enhancing properties, which might provide new insights into the strategies of OA clinical prevention and treatment.
Collapse
|
58
|
Gu Y, Yan R, Wang Y, Zeng Y, Yao Q. High TRB3 expression induces chondrocyte autophagy and senescence in osteoarthritis cartilage. Aging (Albany NY) 2022; 14:5366-5375. [PMID: 35776529 PMCID: PMC9320551 DOI: 10.18632/aging.204066] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 06/24/2022] [Indexed: 11/25/2022]
Abstract
Objective: Osteoarthritis is closely related to aging. Tribbles homologue 3 (TRB3) is found to display age-related expression and contributes to the regulation of cell proliferation, differentiation and fibrosis. In this study, we aimed to investigate the potential involvement of TRB3 in cartilage autophagy and aging in osteoarthritis. Methods: Cartilage tissue samples were collected from osteoarthritis patients who received joint replacement and cadaveric donors. In osteoarthritis cartilage tissue, we analyzed autophagy- and senescence-associated proteins using immunohistochemistry and western blot (WB), in vitro, to confirm the role played by TRB3 in the process of autophagy, cell senescence, and inflammation, small interfering RNA (siRNA) was used for TRB3 knockdown in cells. Results: We found increased level of p62, decreased level of microtubule-associated protein 1A/1B-light chain 3 (LC3) and beclin-1 in cartilage, and increased level of p16 and p21 in tissue samples collected from osteoarthritis patients, indicating decreased autophagy and increased cell senescence. TRB3 knockdown significantly rescued, in vitro, the reduced autophagy and elevated cell senescence in human chondrocyte. Conclusions: Interfering with TRB3 expression in cartilage may serve as a target in the prevention and treatment of age-related osteoarthritis.
Collapse
Affiliation(s)
- Yanqing Gu
- Department of Orthopedics, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Ren Yan
- Department of Orthopedics, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Yang Wang
- Department of Orthopedics, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Yiwen Zeng
- Department of Orthopedics, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Qingqiang Yao
- Department of Orthopedics, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, China.,Cartilage Regeneration Center, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, China.,Digital Medicine Institute, Nanjing Medical University, Nanjing, Jiangsu, China
| |
Collapse
|
59
|
The Role of Mitochondrial Metabolism, AMPK-SIRT Mediated Pathway, LncRNA and MicroRNA in Osteoarthritis. Biomedicines 2022; 10:biomedicines10071477. [PMID: 35884782 PMCID: PMC9312479 DOI: 10.3390/biomedicines10071477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 06/16/2022] [Accepted: 06/17/2022] [Indexed: 11/20/2022] Open
Abstract
Osteoarthritis (OA) is the most common joint disease characterized by degeneration of articular cartilage and causes severe joint pain, physical disability, and impaired quality of life. Recently, it was found that mitochondria not only act as a powerhouse of cells that provide energy for cellular metabolism, but are also involved in crucial pathways responsible for maintaining chondrocyte physiology. Therefore, a growing amount of evidence emphasizes that impairment of mitochondrial function is associated with OA pathogenesis; however, the exact mechanism is not well known. Moreover, the AMP-activated protein kinase (AMPK)–Sirtuin (SIRT) signaling pathway, long non-coding RNA (lncRNA), and microRNA (miRNA) are important for regulating the physiological and pathological processes of chondrocytes, indicating that these may be targets for OA treatment. In this review, we first focus on the importance of mitochondria metabolic dysregulation related to OA. Then, we show recent evidence on the AMPK-SIRT mediated pathway associated with OA pathogenesis and potential treatment options. Finally, we discuss current research into the effects of lncRNA and miRNA on OA progression or inhibition.
Collapse
|
60
|
Yao M, Zhang C, Ni L, Ji X, Hong J, Chen Y, Wang J, Li C, Lin J, Lu T, Sheng Y, Sun M, Shi M, Zhou C, Cai X. Cepharanthine Ameliorates Chondrocytic Inflammation and Osteoarthritis via Regulating the MAPK/NF-κB-Autophagy Pathway. Front Pharmacol 2022; 13:854239. [PMID: 35800437 PMCID: PMC9253373 DOI: 10.3389/fphar.2022.854239] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 05/09/2022] [Indexed: 12/29/2022] Open
Abstract
Osteoarthritis is a worldwide joint disease caused by abnormal chondrocytic metabolism. However, traditional therapeutic methods aimed at anti-inflammation for early-stage disease are palliative. In the present study, we demonstrated that cepharanthine (CEP), extracted from the plant Stephania cepharantha, exerted protective medicinal efficacy on osteoarthritis for the first time. In our in vitro study, CEP suppressed the elevated expression of matrix metalloproteinases (MMPs), a disintegrin and metalloproteinase with thrombospondin motifs 5 (ADAMTS5) and inducible nitric oxide synthase (iNOS) stimulated by IL-1β or TNF-α by inhibiting the activation of MAPK and NF-κB signaling pathways, and upregulated the protein expression of aggrecan, collagen II, and Sox9. Also, CEP could reverse the reduced level of cellular autophagy in IL-1β or TNF-α–induced chondrocytes, indicating that the protective effect of CEP on osteoarthritis was achieved by restoring MAPK/NF-κB-mediated autophagy. Furthermore, in a murine OA model, CEP mitigated cartilage degradation and prevented osteoarthritis in the CEP-treated groups versus the OA group. Hence, our results revealed the therapeutic prospect of CEP for anti-osteoarthritic treatment.
Collapse
Affiliation(s)
- Minjun Yao
- Department of Orthopedic Surgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Orthopedic Research Institute of Zhejiang University, Hangzhou, China
| | - Caihua Zhang
- Department of Orthopedics, Ningbo First Hospital, Ningbo, China
| | - Lingzhi Ni
- Department of Orthopedic Surgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Department of Orthopedics, Hangzhou Third Hospital, Hangzhou, China
| | - Xiaoxiao Ji
- Department of Orthopedic Surgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Orthopedic Research Institute of Zhejiang University, Hangzhou, China
| | - Jianqiao Hong
- Department of Orthopedic Surgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Orthopedic Research Institute of Zhejiang University, Hangzhou, China
| | - Yazhou Chen
- Department of Orthopedic Surgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Orthopedic Research Institute of Zhejiang University, Hangzhou, China
| | - Jie Wang
- Department of Orthopedic Surgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Orthopedic Research Institute of Zhejiang University, Hangzhou, China
| | - Congsun Li
- Department of Orthopedic Surgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Orthopedic Research Institute of Zhejiang University, Hangzhou, China
| | - Jiyan Lin
- Department of Orthopedic Surgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Orthopedic Research Institute of Zhejiang University, Hangzhou, China
| | - Tingting Lu
- Department of Oncology, The First Clinical Medical College of Wenzhou Medical University, Wenzhou, China
| | - Yihao Sheng
- Department of Orthopedics, Hangzhou Xiaoshan Cha Ting Orthopedic Trauma Hospital, Hangzhou, China
| | - Menghao Sun
- Department of Orthopedic Surgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Orthopedic Research Institute of Zhejiang University, Hangzhou, China
| | - Mingmin Shi
- Department of Orthopedic Surgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Orthopedic Research Institute of Zhejiang University, Hangzhou, China
| | - Chenhe Zhou
- Department of Orthopedic Surgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Orthopedic Research Institute of Zhejiang University, Hangzhou, China
- *Correspondence: Xunzi Cai, ; Chenhe Zhou,
| | - Xunzi Cai
- Department of Orthopedic Surgery, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- Orthopedic Research Institute of Zhejiang University, Hangzhou, China
- *Correspondence: Xunzi Cai, ; Chenhe Zhou,
| |
Collapse
|
61
|
Withanolide modulates the potential crosstalk between apoptosis and autophagy in different colorectal cancer cell lines. Eur J Pharmacol 2022; 928:175113. [PMID: 35750234 DOI: 10.1016/j.ejphar.2022.175113] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 06/16/2022] [Accepted: 06/16/2022] [Indexed: 11/20/2022]
Abstract
Withaferin A (WFA), a withanolide, is isolated from plants of Withania somnifera (L.) Dual (Solanaceae), known as Indian ginseng, Indian winter cherry or Ashwagandha. It has been reported to exert multifaceted anti-neoplastic effects. Here, we analyzed the impact of WFA on apoptosis and autophagy activation in different human colorectal cancer cell lines. We observed that WFA exposure caused an increased aggregation of cells in the subG1 arrest in cell cycle, and increased the number of late apoptotic cells. WFA also induced the apoptosis via PARP and caspase-3 cleavage accompanied with suppression of levels of anti-apoptotic proteins like Bcl-2 and Bcl-xl. The influence of WFA on autophagy was validated by acridine orange, MDC staining, and immunocytochemistry of LC3. It was found that 24 h treatment of WFA increased the acridine and MDC stained autophagosome with induced the LC3 and other autophagy markers Atg7 and beclin-1 activation. We used Z-DEVD-FMK, a caspase-3 blocker, and 3-MA, an autophagy inhibitor, to confirm whether these effects were specific to apoptosis and autophagy, and observed the recovery of both these processes upon exposure to WFA. Moreover, the activation of β-catenin protein was attenuated by WFA. Interestingly, small interfering RNA (siRNA)-promoted β-catenin knockdown augmented the WFA-induced active form of p-GSK-3β, and stimulated autophagy and apoptosis through PARP and LC3 activation. These findings suggested that WFA could stimulate activation of both apoptosis and autophagy process via modulating β-catenin pathway.
Collapse
|
62
|
Lv S, Wang X, Jin S, Shen S, Wang R, Tong P. Quercetin mediates TSC2-RHEB-mTOR pathway to regulate chondrocytes autophagy in knee osteoarthritis. Gene X 2022; 820:146209. [PMID: 35093450 DOI: 10.1016/j.gene.2022.146209] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Revised: 12/03/2021] [Accepted: 01/13/2022] [Indexed: 01/28/2023] Open
Abstract
OBJECTIVE This study aimed to explore the specific molecular mechanism of the therapeutic effect of quercetin in knee osteoarthritis (KOA). METHODS The KOA rat model was constructed by excising the medial meniscus and transecting the anterior meniscus. Joint injuries in rats were determined by Hematoxylin-Eosin (H&E) and Safranin O staining. The severity of KOA was then assessed according to the Osteoarthritis Research Society International (OARSI). The expressions of TSC2 and LC2B in joint tissue were measured by immunohistochemistry. Besides, chondrocytes treated with 10 ng/ml IL-1β were used to construct a chondrocyte arthritis model, while those treated with 4 or 8 μM quercetin were served as treatment groups. MTT, flow cytometry and toluidine blue staining were used to detect cell viability, apoptosis and mucopolysaccharide synthesis, respectively. qRT-PCR or Western blot was performed to determine the expressions of MMP-13, collagen II, Aggrecan, TSC2, RHEB, mTOR, p-mTOR, ULK1, p-ULK1, LC3B-I, LC3B-II and P62 in chondrocytes. RESULTS Quercetin alleviated the joint injury and suppressed the increase in MMP-13 expression and the decreases in collagen II and Aggrecan expressions in KOA rats. In addition, quercetin suppressed RHEB, p-mTOR, p-ULK1 and P62 expressions but promoted TSC2 and LC3BII expressions in KOA rats. Furthermore, quercetin could relieve the decrease of cell viability and the increase of apoptosis that induced by IL-1β, and promote the synthesis of IL-1β-inhibited mucopolysaccharide in chondrocytes. Nevertheless, siTSC2 partially offset the therapeutic effects of quercetin in chondrocytes. CONCLUSION Quercetin alleviated KOA by mediating the TSC2-RHBE-mTOR signaling pathway.
Collapse
Affiliation(s)
- Shuaijie Lv
- Orthopedics Department, The First Affiliated Hospital of Zhejiang University of Chinese Medicine, Shangcheng District, Hangzhou City, Zhejiang Province 310000, China
| | - Xiaojian Wang
- Orthopedics Department, The First Clinical Medical College of Zhejiang University of Chinese Medicine, Binjiang District, Hangzhou City, Zhejiang Province 310053, China
| | - Shuaijie Jin
- Orthopedics Department, The First Clinical Medical College of Zhejiang University of Chinese Medicine, Binjiang District, Hangzhou City, Zhejiang Province 310053, China
| | - Shaoning Shen
- Orthopedics Department, The First Clinical Medical College of Zhejiang University of Chinese Medicine, Binjiang District, Hangzhou City, Zhejiang Province 310053, China
| | - Rui Wang
- Orthopedics Department, The First Clinical Medical College of Zhejiang University of Chinese Medicine, Binjiang District, Hangzhou City, Zhejiang Province 310053, China
| | - Peijian Tong
- Orthopedics Department, The First Affiliated Hospital of Zhejiang University of Chinese Medicine, Shangcheng District, Hangzhou City, Zhejiang Province 310000, China.
| |
Collapse
|
63
|
Astrike-Davis EM, Coryell P, Loeser RF. Targeting cellular senescence as a novel treatment for osteoarthritis. Curr Opin Pharmacol 2022; 64:102213. [PMID: 35447516 DOI: 10.1016/j.coph.2022.102213] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 03/12/2022] [Indexed: 12/12/2022]
Abstract
Cellular senescence is associated with normal development and wound healing, but has also been implicated in the pathogenesis of numerous aging-related diseases including osteoarthritis (OA). Treatment strategies for OA are being developed that target senescent cells and the paracrine and autocrine secretions of the senescence-associated secretory phenotype (SASP). The field of potential therapies continues to expand as new mechanistic targets of cell senescence and the SASP are identified. Ongoing pre-clinical and clinical studies of drugs targeting cellular senescence yield significant promise, but have yet to demonstrate long-term efficacy. Therapeutic targeting of senescence is challenged by the diverse phenotypes of senescent cells, which can vary depending on age, species, tissue source, and type of physiologic stressor. Accordingly, there remains considerable demand for more studies to further develop and assess senotherapeutics as disease-modifying treatments for OA.
Collapse
Affiliation(s)
- Emma M Astrike-Davis
- Division of Rheumatology, Allergy, and Immunology, The Thurston Arthritis Research Center, University of North Carolina School of Medicine, Chapel Hill, NC, USA
| | - Philip Coryell
- Division of Rheumatology, Allergy, and Immunology, The Thurston Arthritis Research Center, University of North Carolina School of Medicine, Chapel Hill, NC, USA
| | - Richard F Loeser
- Division of Rheumatology, Allergy, and Immunology, The Thurston Arthritis Research Center, University of North Carolina School of Medicine, Chapel Hill, NC, USA.
| |
Collapse
|
64
|
Regulation of apoptosis and autophagy by albendazole in human colon adenocarcinoma cells. Biochimie 2022; 198:155-166. [DOI: 10.1016/j.biochi.2022.04.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 04/06/2022] [Accepted: 04/27/2022] [Indexed: 11/23/2022]
|
65
|
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.
Collapse
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.
| |
Collapse
|
66
|
Wu CJ, Liu RX, Huan SW, Tang W, Zeng YK, Zhang JC, Yang J, Li ZY, Zhou Y, Zha ZG, Zhang HT, Liu N. Senescent skeletal cells cross-talk with synovial cells plays a key role in the pathogenesis of osteoarthritis. Arthritis Res Ther 2022; 24:59. [PMID: 35227288 PMCID: PMC8883702 DOI: 10.1186/s13075-022-02747-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 02/14/2022] [Indexed: 12/20/2022] Open
Abstract
Osteoarthritis (OA) has been recognized as an age-related degenerative disease commonly seen in the elderly that affects the whole “organ” including cartilage, subchondral bone, synovium, and muscles. An increasing number of studies have suggested that the accumulation of senescent cells triggering by various stresses in the local joint contributes to the pathogenesis of age-related diseases including OA. In this review, we mainly focus on the role of the senescent skeletal cells (chondrocytes, osteoblasts, osteoclasts, osteocyte, and muscle cells) in initiating the development and progression of OA alone or through cross-talk with the macrophages/synovial cells. Accordingly, we summarize the current OA-targeted therapies based on the abovementioned theory, e.g., by eliminating senescent skeletal cells and/or inhibiting the senescence-associated secretory phenotype (SASP) that drives senescence. Furthermore, the existing animal models for the study of OA from the perspective of senescence are highlighted to fill the gap between basic research and clinical applications. Overall, in this review, we systematically assess the current understanding of cellular senescence in OA, which in turn might shed light on the stratified OA treatments.
Collapse
Affiliation(s)
- Chong-Jie Wu
- Department of Bone and Joint Surgery, the First Affiliated Hospital, Jinan University, Guangzhou, 510630, Guangdong, China
| | - Ri-Xu Liu
- Department of Bone and Joint Surgery, the First Affiliated Hospital, Jinan University, Guangzhou, 510630, Guangdong, China
| | - Song-Wei Huan
- Department of Bone and Joint Surgery, the First Affiliated Hospital, Jinan University, Guangzhou, 510630, Guangdong, China.,Institute of Orthopedic Diseases & The Bone and Joint Disease institute of Guangdong-Hong Kong-Macao Greater Bay Area, Jinan University, Guangzhou, 510630, China
| | - Wang Tang
- Department of Bone and Joint Surgery, the First Affiliated Hospital, Jinan University, Guangzhou, 510630, Guangdong, China
| | - Yu-Kai Zeng
- Department of Bone and Joint Surgery, the First Affiliated Hospital, Jinan University, Guangzhou, 510630, Guangdong, China
| | - Jun-Cheng Zhang
- Department of Bone and Joint Surgery, the First Affiliated Hospital, Jinan University, Guangzhou, 510630, Guangdong, China
| | - Jie Yang
- Department of Bone and Joint Surgery, the First Affiliated Hospital, Jinan University, Guangzhou, 510630, Guangdong, China.,Institute of Orthopedic Diseases & The Bone and Joint Disease institute of Guangdong-Hong Kong-Macao Greater Bay Area, Jinan University, Guangzhou, 510630, China
| | - Zhen-Yan Li
- Department of Bone and Joint Surgery, the First Affiliated Hospital, Jinan University, Guangzhou, 510630, Guangdong, China.,Institute of Orthopedic Diseases & The Bone and Joint Disease institute of Guangdong-Hong Kong-Macao Greater Bay Area, Jinan University, Guangzhou, 510630, China
| | - Ying Zhou
- Department of Bone and Joint Surgery, the First Affiliated Hospital, Jinan University, Guangzhou, 510630, Guangdong, China
| | - Zhen-Gang Zha
- Department of Bone and Joint Surgery, the First Affiliated Hospital, Jinan University, Guangzhou, 510630, Guangdong, China.,Institute of Orthopedic Diseases & The Bone and Joint Disease institute of Guangdong-Hong Kong-Macao Greater Bay Area, Jinan University, Guangzhou, 510630, China
| | - Huan-Tian Zhang
- Department of Bone and Joint Surgery, the First Affiliated Hospital, Jinan University, Guangzhou, 510630, Guangdong, China. .,Institute of Orthopedic Diseases & The Bone and Joint Disease institute of Guangdong-Hong Kong-Macao Greater Bay Area, Jinan University, Guangzhou, 510630, China.
| | - Ning Liu
- Department of Bone and Joint Surgery, the First Affiliated Hospital, Jinan University, Guangzhou, 510630, Guangdong, China. .,Institute of Orthopedic Diseases & The Bone and Joint Disease institute of Guangdong-Hong Kong-Macao Greater Bay Area, Jinan University, Guangzhou, 510630, China.
| |
Collapse
|
67
|
Leelamine Modulates STAT5 Pathway Causing Both Autophagy and Apoptosis in Chronic Myelogenous Leukemia Cells. BIOLOGY 2022; 11:biology11030366. [PMID: 35336740 PMCID: PMC8945775 DOI: 10.3390/biology11030366] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 02/23/2022] [Accepted: 02/23/2022] [Indexed: 01/07/2023]
Abstract
Simple Summary Autophagy is a cellular mechanism that is essential for removing misfolded proteins and damaged organelles. Moreover, the aberrant activation of signal transducer and activator of transcription 5 (STAT5), which can regulate cellular survival and homeostasis, has been often observed in different malignancies. In this study, we demonstrate that leelamine inhibits the STAT5 phosphorylation while inducing autophagy as well as apoptosis in chronic myeloid leukemia cells. Leelamine induces autophagy by stimulating the expression of Atg7, beclin-1, and the production of autophagosomes, which leads to substantial inhibition of STAT5 activation. Abstract Leelamine (LEE) has recently attracted significant attention for its growth inhibitory effects against melanoma, breast cancer, and prostate cancer cells; however, its impact on hematological malignancies remains unclear. Here, we first investigate the cytotoxic effects of LEE on several human chronic myeloid leukemia (CML) cells. We noted that LEE stimulated both apoptosis and autophagy in CML cells. In addition, the constitutive activation of signal transducer and activator of transcription 5 (STAT5) was suppressed substantially upon LEE treatment. Moreover, STAT5 knockdown with small interfering RNA (siRNA) increased LEE-induced apoptosis as well as autophagy and affected the levels of various oncogenic proteins. Thus, the targeted mitigation of STAT5 activation by LEE can contribute to its diverse anticancer effects by enhancing two distinct cell death pathways.
Collapse
|
68
|
Rayson A, Boudiffa M, Naveed M, Griffin J, Dall’Ara E, Bellantuono I. Geroprotectors and Skeletal Health: Beyond the Headlines. Front Cell Dev Biol 2022; 10:682045. [PMID: 35223825 PMCID: PMC8864221 DOI: 10.3389/fcell.2022.682045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 01/10/2022] [Indexed: 12/19/2022] Open
Abstract
Osteoporosis and osteoarthritis are the most common age-related diseases of the musculoskeletal system. They are responsible for high level of healthcare use and are often associated with comorbidities. Mechanisms of ageing such as senescence, inflammation and autophagy are common drivers for both diseases and molecules targeting those mechanisms (geroprotectors) have potential to prevent both diseases and their co-morbidities. However, studies to test the efficacy of geroprotectors on bone and joints are scant. The limited studies available show promising results to prevent and reverse Osteoporosis-like disease. In contrast, the effects on the development of Osteoarthritis-like disease in ageing mice has been disappointing thus far. Here we review the literature and report novel data on the effect of geroprotectors for Osteoporosis and Osteoarthritis, we challenge the notion that extension of lifespan correlates with extension of healthspan in all tissues and we highlight the need for more thorough studies to test the effects of geroprotectors on skeletal health in ageing organisms.
Collapse
Affiliation(s)
- Alexandra Rayson
- Healthy Lifespan Institute, Department of Oncology and Metabolism, The Medical School, Sheffield, United Kingdom
| | - Maya Boudiffa
- Healthy Lifespan Institute, Department of Oncology and Metabolism, The Medical School, Sheffield, United Kingdom
| | - Maneeha Naveed
- Healthy Lifespan Institute, Department of Oncology and Metabolism, The Medical School, Sheffield, United Kingdom
| | - Jon Griffin
- Healthy Lifespan Institute, Department of Molecular Biology and Biotechnology, The University of Sheffield, Sheffield, United Kingdom
| | - Enrico Dall’Ara
- Healthy Lifespan Institute, Department of Oncology and Metabolism, The Medical School, Sheffield, United Kingdom
- Insigneo Institute for in silico Medicine, Sheffield, United Kingdom
| | - Ilaria Bellantuono
- Healthy Lifespan Institute, Department of Oncology and Metabolism, The Medical School, Sheffield, United Kingdom
| |
Collapse
|
69
|
Liu L, Bai H, Jiao G, Wang X, Zhang Z, Song X, Ma T, Li T, Gao L. CF101 alleviates OA progression and inhibits the inflammatory process via the AMP/ATP/AMPK/mTOR axis. Bone 2022; 155:116264. [PMID: 34826631 DOI: 10.1016/j.bone.2021.116264] [Citation(s) in RCA: 4] [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: 09/29/2021] [Revised: 11/08/2021] [Accepted: 11/18/2021] [Indexed: 11/18/2022]
Abstract
CF101 (IB-MECA) is an adenosine A3 receptor agonist that has anti-inflammatory and pain-relieving properties. Adenosine A3 receptor activation can delay the process of Osteoarthritis(OA) and prevent the occurrence of OA. However, the mechanism of CF101 on OA is still unknown. This study aimed to investigate the effect of CF101 on rats induced by anterior cruciate ligament-transection (ACLT) and rat chondrocytes induced by IL-1ß. ACLT-induced OA rats were administered CF101, and autophagy levels were measured to determine whether CF101 had an autophagy-mediated protective effect on articular cartilage. Furthermore, the mechanism by which CF101 protected articular cartilage in IL-1ß-induced chondrocytes mimicking OA was investigated. In rats treated with ACLT, CF101 was able to delay the progression of OA, as well as reduce inflammation and type II collagen degradation factors. In addition, in vitro experiments revealed that CF101 reduced type II collagen degradation factors in OA chondrocytes. In rats treated with ACLT and OA chondrocytes, CF101 enhanced autophagy and increased the ratio of AMP/ATP and AMPK protein levels while decreasing mTOR expression. Treatment of OA chondrocytes with 3-MA prior to treatment with CF101 resulted in inhibition of autophagy factor levels, as well as increased levels of inflammatory factors and type II collagen degradation compared to the CF101 group. These findings demonstrated that CF101 could protect articular cartilage against OA by enhancing the ratio of ATP/AMP and altering the AMPK/mTOR pathway to enhance autophagy and reduce inflammation. In addition, inhibition of autophagy resulted in a reduced CF101 effect.
Collapse
Affiliation(s)
- Lin Liu
- Northeast Agricultural University, Heilongjiang, Haerbin 150030, China; Laboratory of Heilongjiang Animal Disease Pathogenesis and Comparative Medicine, Heilongjiang, Haerbin 150030, China
| | - Hui Bai
- Northeast Agricultural University, Heilongjiang, Haerbin 150030, China; Laboratory of Heilongjiang Animal Disease Pathogenesis and Comparative Medicine, Heilongjiang, Haerbin 150030, China
| | - Guangming Jiao
- Northeast Agricultural University, Heilongjiang, Haerbin 150030, China; Laboratory of Heilongjiang Animal Disease Pathogenesis and Comparative Medicine, Heilongjiang, Haerbin 150030, China
| | - XinYu Wang
- Northeast Agricultural University, Heilongjiang, Haerbin 150030, China; Laboratory of Heilongjiang Animal Disease Pathogenesis and Comparative Medicine, Heilongjiang, Haerbin 150030, China
| | - Zhiheng Zhang
- Northeast Agricultural University, Heilongjiang, Haerbin 150030, China; Laboratory of Heilongjiang Animal Disease Pathogenesis and Comparative Medicine, Heilongjiang, Haerbin 150030, China
| | - Xiaopeng Song
- Northeast Agricultural University, Heilongjiang, Haerbin 150030, China; Laboratory of Heilongjiang Animal Disease Pathogenesis and Comparative Medicine, Heilongjiang, Haerbin 150030, China
| | - Tianwen Ma
- Northeast Agricultural University, Heilongjiang, Haerbin 150030, China; Laboratory of Heilongjiang Animal Disease Pathogenesis and Comparative Medicine, Heilongjiang, Haerbin 150030, China
| | - Ting Li
- Northeast Agricultural University, Heilongjiang, Haerbin 150030, China; Laboratory of Heilongjiang Animal Disease Pathogenesis and Comparative Medicine, Heilongjiang, Haerbin 150030, China
| | - Li Gao
- Northeast Agricultural University, Heilongjiang, Haerbin 150030, China; Laboratory of Heilongjiang Animal Disease Pathogenesis and Comparative Medicine, Heilongjiang, Haerbin 150030, China.
| |
Collapse
|
70
|
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.
Collapse
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
| |
Collapse
|
71
|
Chen X, Gong W, Shao X, Shi T, Zhang L, Dong J, Shi Y, Shen S, Qin J, Jiang Q, Guo B. METTL3-mediated m 6A modification of ATG7 regulates autophagy-GATA4 axis to promote cellular senescence and osteoarthritis progression. Ann Rheum Dis 2022; 81:87-99. [PMID: 34706873 DOI: 10.1136/annrheumdis-2021-221091] [Citation(s) in RCA: 155] [Impact Index Per Article: 77.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 10/06/2021] [Indexed: 12/19/2022]
Abstract
OBJECTIVE The aim of the study was to investigate the role and regulatory mechanisms of fibroblast-like synoviocytes (FLSs) and their senescence in the progression of osteoarthritis (OA). METHODS Synovial tissues from normal patients and patients with OA were collected. Synovium FLS senescence was analysed by immunofluorescence and western blotting. The role of methyltransferase-like 3 (METTL3) in autophagy regulation was explored using N6-methyladenosine (m6A)-methylated RNA and RNA immunoprecipitation assays. Mice subjected to destabilisation of the medial meniscus (DMM) surgery were intra-articularly injected with or without pAAV9 loaded with small interfering RNA (siRNA) targeting METTL3. Histological analysis was performed to determine cartilage damage. RESULTS Senescent FLSs were markedly increased with the progression of OA in patients and mouse models. We determined that impaired autophagy occurred in OA-FLS, resulting in the upregulation of senescence-associated secretory phenotype (SASP). Re-establishment of autophagy reversed the senescent phenotype by suppressing GATA4. Further, we observed for the first time that excessive m6A modification negatively regulated autophagy in OA-FLS. Mechanistically, METTL3-mediated m6A modification decreased the expression of autophagy-related 7, an E-1 enzyme crucial for the formation of autophagosomes, by attenuating its RNA stability. Silencing METTL3 enhanced autophagic flux and inhibited SASP expression in OA-FLS. Intra-articular injection of synovium-targeted METTL3 siRNA suppressed cellular senescence propagation in joints and ameliorated DMM-induced cartilage destruction. CONCLUSIONS Our study revealed the important role of FLS senescence in OA progression. Targeted METTL3 inhibition could alleviate the senescence of FLS and limit OA development in experimental animal models, providing a potential strategy for OA therapy.
Collapse
Affiliation(s)
- Xiang Chen
- State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
- Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing, Jiangsu, China
| | - Wang Gong
- State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
- Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing, Jiangsu, China
| | - Xiaoyan Shao
- State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
- Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing, Jiangsu, China
| | - Tianshu Shi
- State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
- Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing, Jiangsu, China
| | - Lei Zhang
- State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
- Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing, Jiangsu, China
| | - Jian Dong
- State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
- Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing, Jiangsu, China
| | - Yong Shi
- State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
- Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing, Jiangsu, China
| | - Siyu Shen
- State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
- Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing, Jiangsu, China
| | - Jianghui Qin
- State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
- Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing, Jiangsu, China
- Branch of National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Nanjing, Jiangsu, China
| | - Qing Jiang
- State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
- Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing, Jiangsu, China
- Branch of National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Nanjing, Jiangsu, China
| | - Baosheng Guo
- State Key Laboratory of Pharmaceutical Biotechnology, Division of Sports Medicine and Adult Reconstructive Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
- Jiangsu Key Laboratory of Molecular Medicine, Medical School, Nanjing University, Nanjing, Jiangsu, China
- Branch of National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Nanjing, Jiangsu, China
| |
Collapse
|
72
|
Zeng J, Zhang Z, Liao Q, Lu Q, Liu J, Yuan L, Liu G. CircPan3 Promotes the Ghrelin System and Chondrocyte Autophagy by Sponging miR-667-5p During Rat Osteoarthritis Pathogenesis. Front Cell Dev Biol 2021; 9:719898. [PMID: 34869311 PMCID: PMC8640465 DOI: 10.3389/fcell.2021.719898] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Accepted: 10/11/2021] [Indexed: 12/19/2022] Open
Abstract
This study aimed to investigate the potential roles of circRNAs in regulating osteoarthritis (OA)-related ghrelin synthesis, autophagy induction, and the relevant molecular mechanisms. Results showed that Col2a1, Acan, ghrelin, and autophagy-related markers expression were downregulated, while matrix metalloproteinase 13 (MMP13) and a disintegrin and metalloproteinase with thrombospondin motifs 5 (ADAMTS5) expressions increased in both IL-1β-induced rat chondrocytes and cartilage tissues of OA rats. A total of 130 circRNAs and 731 mRNAs were differentially expressed in IL-1β-induced rat chondrocytes. Among them, we found that circPan3 expression was significantly decreased in both cellular and animal OA models. CircPan3 directly targeted miR-667-5p. CircPan3 overexpression promoted Col2a1, Acan, ghrelin, beclin 1, and LC3-II expression but reduced MMP13 and ADAMTS5 expression in rat chondrocytes, whereas overexpression of miR-667-5p exhibited opposite effects on the above markers. Furthermore, we found that miR-667-5p bound directly to the 3′-UTR sequence of ghrelin gene. Moreover, the circPan3-induced alterations in chondrocytes were antagonized by miR-667-5p overexpression. Taken together, our findings demonstrate that circPan3 promotes ghrelin synthesis and chondrocyte autophagy via targeting miR-667-5p, protecting against OA injury. This study provided experimental evidence that circPan3/miR-667-5p/ghrelin axis might serve as targets of drug development for the treatment of OA.
Collapse
Affiliation(s)
- Jing Zeng
- Department of Rehabilitation Medicine, The Third Affiliated Hospital of Southern Medical University, Southern Medical University, Guangzhou, China.,Department of Rehabilitation Medicine, Nanfang University of Science and Technology Hospital, Shenzhen, China
| | - Zhenzhen Zhang
- Department of Rehabilitation Medicine, The Third Affiliated Hospital of Southern Medical University, Southern Medical University, Guangzhou, China.,Department of Rehabilitation Medicine, Hankou Hospital, Wuhan, China
| | - Qing Liao
- Department of Rehabilitation Medicine, Shunde Hospital of Southern Medical University, Southern Medical University, Foshan, China
| | - Qijin Lu
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Jiemei Liu
- Department of Rehabilitation Medicine, Shunde Hospital of Southern Medical University, Southern Medical University, Foshan, China
| | - Lixia Yuan
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Gang Liu
- Department of Rehabilitation Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Department of Rehabilitation Medicine, Shunde Hospital of Southern Medical University, Southern Medical University, Foshan, China
| |
Collapse
|
73
|
Zhang H, Zheng W, Li D, Zheng J. miR-146a-5p Promotes Chondrocyte Apoptosis and Inhibits Autophagy of Osteoarthritis by Targeting NUMB. Cartilage 2021; 13:1467S-1477S. [PMID: 34315248 PMCID: PMC8804840 DOI: 10.1177/19476035211023550] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVE miR-146a-5p was found to be significantly upregulated in cartilage tissue of patients with osteoarthritis (OA). NUMB was shown to be involved in the autophagy regulation process of cells. We aimed to learn whether NUMB was involved in the apoptosis or autophagy process of chondrocytes in OA and related with miR-146a-5p. METHODS QRT-PCR was used to detect miR-146a-5p level in 22 OA cartilage tissues and 22 controls. The targets of miR-146a-5p were analyzed using software and the luciferase reporter experiment. The apoptosis and autophagy, and related proteins were detected in chondrocytes treated with miR-146a-5p mimic/inhibitor or pcDNA3.1-NUMB/si-NUMB and IL-1β, respectively. In vivo experiment, intra-articular injection of miR-146a-5p antagomir/NC was administered at the knee of OA male mice before and after model construction. Chondrocyte apoptosis and the expression of apoptosis and autophagy-related proteins were also detected. RESULTS miR-146a-5p was highly expressed in knee cartilage tissue of patients with OA, while NUMB was lowly expressed and negatively regulated by miR-146a-5p. Upregulation of miR-146a-5p can promote cell apoptosis and reduce autophagy of human and mouse chondrocytes by modulating the levels of cleaved caspase-3, cleaved PARP, Bax, Beclin 1, ATG5, p62, LC3-I, and LC3-II. Increasing the low level of NUMB reversed the effects of miR-146a-5p on chondrocyte apoptosis and autophagy. Intra-articular injection of miR-146a-5p antagomir can also reverse the effects of miR-146a-5p on the apoptosis and autophagy of knee joint chondrocytes in OA mice. CONCLUSION Downregulation of miR-146a-5p suppresses the apoptosis and promotes autophagy of chondrocytes by targeting NUMB in vivo and in vitro.
Collapse
Affiliation(s)
- Hongjun Zhang
- Department of Orthopedics, School of
Clinical Medicine, Henan Provincial People’s Hospital, People’s Hospital of
Zhengzhou University, Henan University, Zhengzhou, Henan Province, China
| | - Wendi Zheng
- Department of Orthopedics, School of
Clinical Medicine, Henan Provincial People’s Hospital, People’s Hospital of
Zhengzhou University, Henan University, Zhengzhou, Henan Province, China
| | - Du Li
- Department of Orthopedics, School of
Clinical Medicine, Henan Provincial People’s Hospital, People’s Hospital of
Zhengzhou University, Henan University, Zhengzhou, Henan Province, China
| | - Jia Zheng
- Department of Orthopedics, School of
Clinical Medicine, Henan Provincial People’s Hospital, People’s Hospital of
Zhengzhou University, Henan University, Zhengzhou, Henan Province, China
| |
Collapse
|
74
|
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.
Collapse
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.
| |
Collapse
|
75
|
Akaraphutiporn E, Sunaga T, Bwalya EC, Yanlin W, Carol M, Okumura M. An Insight into the Role of Apoptosis and Autophagy in Nitric Oxide-Induced Articular Chondrocyte Cell Death. Cartilage 2021; 13:826S-838S. [PMID: 33307758 PMCID: PMC8804748 DOI: 10.1177/1947603520976768] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
OBJECTIVE To investigate the role and characterize the molecular mechanisms regulating apoptosis and autophagy in nitric oxide (NO)-induced chondrocyte cell death. DESIGN Cell apoptosis and autophagy were evaluated in chondrocytes treated with sodium nitroprusside (SNP) combined with the presence or absence of interleukin-1 beta (IL-1β) and nutrient-deprived conditions. The concentration of nitrite was determined by Griess reaction. Activation of apoptosis and autophagy were determined by immunocytochemistry, Western blot, and quantitative real-time polymerase chain reaction (qPCR) analysis. Flow cytometry and MTT assay were used to assess cell viability. RESULTS Cotreatment of chondrocytes with SNP and IL-1β under nutrient-deprived condition potentially enhanced the effect of NO-induced cell death. Immunocytochemistry, Western blot, and qPCR analysis indicated that treatment of chondrocytes with SNP significantly reduced autophagic activity, autophagic flux, and multiple autophagy-related (Atg) genes expression. These findings were associated with an increase in ERK, Akt, and mTOR phosphorylation, whereas autophagy induction through mTOR/p70S6K inhibition by rapamycin significantly suppressed NO-induced cell apoptosis. Furthermore, the cleavage of poly(ADP-ribose) polymerase (PARP) and caspase-3 activation in response to apoptosis was weakly detected. These results corresponded with a significant increase in apoptosis-inducing factor (AIF) expression, suggesting the involvement of the caspase-independent pathway. CONCLUSIONS These results demonstrate that in chondrocyte cultures with cells induced into an osteoarthritis state, NO inhibits autophagy and induces chondrocyte apoptosis mainly, but not completely through the caspase-independent pathway. Our data suggest that autophagy is a protective mechanism in the pathogenesis of osteoarthritis and could be proposed as a therapeutic target for degenerative joint diseases.
Collapse
Affiliation(s)
- Ekkapol Akaraphutiporn
- Laboratory of Veterinary Surgery,
Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine,
Hokkaido University, Sapporo, Hokkaido, Japan
| | - Takafumi Sunaga
- Laboratory of Veterinary Surgery,
Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine,
Hokkaido University, Sapporo, Hokkaido, Japan,Takafumi Sunaga, Laboratory of Veterinary
Surgery, Department of Veterinary Clinical Sciences, Graduate School of
Veterinary Medicine, Hokkaido University, Kita 18 Nishi 9, Kita-ku, Sapporo,
Hokkaido, 060-0818, Japan.
| | - Eugene C. Bwalya
- Department of Clinical Studies, Samora
Machel School of Veterinary Medicine, University of Zambia, Lusaka, Zambia
| | - Wang Yanlin
- Laboratory of Veterinary Surgery,
Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine,
Hokkaido University, Sapporo, Hokkaido, Japan
| | - Mwale Carol
- Laboratory of Veterinary Surgery,
Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine,
Hokkaido University, Sapporo, Hokkaido, Japan
| | - Masahiro Okumura
- Laboratory of Veterinary Surgery,
Department of Veterinary Clinical Sciences, Graduate School of Veterinary Medicine,
Hokkaido University, Sapporo, Hokkaido, Japan
| |
Collapse
|
76
|
Pape E, Parent M, Pinzano A, Sapin-Minet A, Henrionnet C, Gillet P, Scala-Bertola J, Gambier N. Rapamycin-loaded Poly(lactic-co-glycolic) acid nanoparticles: Preparation, characterization, and in vitro toxicity study for potential intra-articular injection. Int J Pharm 2021; 609:121198. [PMID: 34662644 DOI: 10.1016/j.ijpharm.2021.121198] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 09/29/2021] [Accepted: 10/10/2021] [Indexed: 12/11/2022]
Abstract
Osteoarthritis (OA) is the most common degenerative joint disease. Rapamycin is a potential candidate for OA treatment by increasing the autophagy process implicated in its physiopathology. To optimize Rapamycin profit and avoid systemic side effects, intra-articular (i.a.) administration appeared helpful. However, Rapamycin's highly hydrophobic nature and low bioavailability made it challenging to develop purpose-made drug delivery systems to overcome these limitations. We developed Rapamycin-loaded nanoparticles (NPs) using poly (lactic-co-glycolic acid) by emulsion/evaporation method. We evaluated these NPs' cytocompatibility towards cartilage (chondrocytes) and synovial membrane cells (synoviocytes) for a potential i.a. administration. The in vitro characterization of Rapamycin-loaded NPs had shown a suitable profile for an i.a. administration. In vitro biocompatibility of NPs was highlighted to 10 µM of Rapamycin for both synoviocytes and chondrocytes, but significant toxicity was observed with higher concentrations. Besides, synoviocytes are more sensitive to Rapamycin-loaded NPs than chondrocytes. Finally, we observed in vitro that an adapted formulated Rapamycin-loaded NPs could be safe at suitable i.a. injection concentrations. The toxic effect of Rapamycin encapsulated in these NPs on both articular cells was dose-dependent. After Rapamycin-loaded NPs i.a. administration, local retention, in situ safety, and systemic release should be evaluated with experimental in vivo models.
Collapse
Affiliation(s)
- Elise Pape
- Université de Lorraine, CNRS, IMoPA, F-54000 Nancy, France; Laboratoire de Pharmacologie, Toxicologie et Pharmacovigilance, Bâtiment de Biologie Médicale et de Biopathologie, CHRU de Nancy-Brabois, 5 Rue du Morvan, F54511 Vandœuvre-Lès-Nancy, France.
| | | | - Astrid Pinzano
- Université de Lorraine, CNRS, IMoPA, F-54000 Nancy, France.
| | | | | | - Pierre Gillet
- Université de Lorraine, CNRS, IMoPA, F-54000 Nancy, France; Laboratoire de Pharmacologie, Toxicologie et Pharmacovigilance, Bâtiment de Biologie Médicale et de Biopathologie, CHRU de Nancy-Brabois, 5 Rue du Morvan, F54511 Vandœuvre-Lès-Nancy, France.
| | - Julien Scala-Bertola
- Université de Lorraine, CNRS, IMoPA, F-54000 Nancy, France; Laboratoire de Pharmacologie, Toxicologie et Pharmacovigilance, Bâtiment de Biologie Médicale et de Biopathologie, CHRU de Nancy-Brabois, 5 Rue du Morvan, F54511 Vandœuvre-Lès-Nancy, France.
| | - Nicolas Gambier
- Université de Lorraine, CNRS, IMoPA, F-54000 Nancy, France; Laboratoire de Pharmacologie, Toxicologie et Pharmacovigilance, Bâtiment de Biologie Médicale et de Biopathologie, CHRU de Nancy-Brabois, 5 Rue du Morvan, F54511 Vandœuvre-Lès-Nancy, France.
| |
Collapse
|
77
|
Papageorgiou AA, Goutas A, Trachana V, Tsezou A. Dual Role of SIRT1 in Autophagy and Lipid Metabolism Regulation in Osteoarthritic Chondrocytes. Medicina (B Aires) 2021; 57:medicina57111203. [PMID: 34833421 PMCID: PMC8621567 DOI: 10.3390/medicina57111203] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 10/22/2021] [Accepted: 10/30/2021] [Indexed: 11/30/2022] Open
Abstract
Background and Objectives: Osteoarthritis (OA) is one of the most common and highly prevalent types of arthritis, also considered a multiphenotypic disease with a strong metabolic component. Ageing is the primary risk factor for OA, while the age-related decline in autophagic activity affects cell function and chondrocyte homeostasis. The aim of this study was to investigate the role of sirtuin 1 (SIRT1) in autophagy dysregulation and lipid metabolism in human OA chondrocytes. Materials and Methods: OA chondrocytes were treated with Resveratrol, Hydroxycloroquine (HCQ) or 3-Methyladenine (3-MA) and HCQ or 3-MA followed by siRNA against SIRT1 (siSIRT1). Then, SIRT1, AcNF-κBp65, LOX-1 and autophagy-related proteins ATG5, ATG13, PI3K class III, Beclin-1, LC3 and ULK protein levels were evaluated using Western blot. Normal articular chondrocytes were treated under serum starvation and/or siSIRT1, and the protein expression levels of the above autophagy-related proteins were evaluated. The staining patterns of LC3/p62 and LOX-1 were analyzed microscopically by immunofluorescence. SIRT1/LC3 complex formation was analyzed by immunoprecipitation. Results: SIRT1 and LOX-1 protein expression were negatively correlated in OA chondrocytes. SIRT1 regulated LOX-1 expression via NF-κΒ deacetylation, while treatment with Resveratrol enhanced SIRT1 enzymatic activity, resulting in LOX-1 downregulation and autophagy induction. In OA chondrocytes, SIRT1 was recognized as an autophagy substrate, formed a complex with LC3 and was consequently subjected to cytoplasmic autophagosome-lysosome degradation. Moreover, siSIRT1-treated normal chondrocytes showed decreased autophagic activity, while double-treated (siSIRT1 and serum starvation) cells showed no induction of autophagy. Conclusions: Our results suggest that SIRT1 regulates lipid homeostasis through LOX-1 expression regulation. Additionally, we indicate that the necessity of SIRT1 for autophagy induction in normal chondrocytes, together with its selective autophagic degradation in OA chondrocytes, could contribute to autophagy dysregulation in OA. We, therefore, suggest a novel regulatory scheme that functionally connects lipid metabolism and autophagy in late-stage OA.
Collapse
Affiliation(s)
- Aliki-Alexandra Papageorgiou
- Laboratory of Cytogenetics and Molecular Genetics, Faculty of Medicine, University of Thessaly, Biopolis, 41500 Larissa, Greece;
| | - Andreas Goutas
- Department of Biology, Faculty of Medicine, University of Thessaly, Biopolis, 41500 Larissa, Greece; (A.G.); (V.T.)
| | - Varvara Trachana
- Department of Biology, Faculty of Medicine, University of Thessaly, Biopolis, 41500 Larissa, Greece; (A.G.); (V.T.)
| | - Aspasia Tsezou
- Laboratory of Cytogenetics and Molecular Genetics, Faculty of Medicine, University of Thessaly, Biopolis, 41500 Larissa, Greece;
- Department of Biology, Faculty of Medicine, University of Thessaly, Biopolis, 41500 Larissa, Greece; (A.G.); (V.T.)
- Correspondence:
| |
Collapse
|
78
|
Kurakazu I, Akasaki Y, Tsushima H, Sueishi T, Toya M, Kuwahara M, Uchida T, Lotz MK, Nakashima Y. TGFβ1 signaling protects chondrocytes against oxidative stress via FOXO1-autophagy axis. Osteoarthritis Cartilage 2021; 29:1600-1613. [PMID: 34419603 PMCID: PMC8789330 DOI: 10.1016/j.joca.2021.07.015] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 07/08/2021] [Accepted: 07/15/2021] [Indexed: 02/02/2023]
Abstract
OBJECTIVE The forkhead box O1 (FOXO1) transcription factor is a key regulator of autophagy. In chondrocytes, reduced FOXO1 expression with aging causes osteoarthritis due to dysfunction of autophagy, but the mechanisms underlying regulation of FOXO1 expression and the reduction in expression with aging remain unclear. We investigated the mechanism by which transforming growth factor β1 (TGFβ1) signaling regulates the FOXO1-autophagy axis. METHODS Expression of FOXO1 was measured in chondrocytes after TGFβ1 treatment. Immunohistochemistry was performed to estimate the levels of activin receptor-like kinase 5 (ALK5) and FOXO1 in the knee joints of young, middle-aged and old mice. The effects of the ALK5 inhibitor and SMAD3 or SMAD2 knockdown on FOXO1 expression were evaluated. The role of TGFβ1 in autophagy after hydrogen peroxide (H2O2) treatment was analyzed. The protective effect of TGFβ1 against H2O2 treatment was assessed by cell viability assay and TUNEL assay. RESULTS TGFβ1 promoted the expression of FOXO1 mRNA and protein. Both ALK5 and FOXO1 expression decreased with aging. ALK5 inhibition and SMAD3 knockdown suppressed induction of FOXO1 expression by TGFβ1, whereas SMAD2 knockdown increased it. TGFβ1 promoted the expression of microtubule-associated proteins 1A/1B light chain 3B (LC3)-I protein via the SMAD3-FOXO1 pathway. Furthermore, under H2O2 treatment, TGFβ1 promoted expression of LC3-II. TGFβ1 pretreatment suppressed cell death of chondrocytes following H2O2 treatment, but this protective effect was abolished by FOXO1 knockdown. CONCLUSIONS TGFβ1 protects chondrocytes against oxidative stress via the FOXO1-autophagy axis, and a reduction in ALK5 expression might cause reduced FOXO1 expression with aging.
Collapse
Affiliation(s)
- Ichiro Kurakazu
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka city, Fukuoka, 812-8582, Japan
| | - Yukio Akasaki
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka city, Fukuoka, 812-8582, Japan
| | - Hidetoshi Tsushima
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka city, Fukuoka, 812-8582, Japan
| | - Takuya Sueishi
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka city, Fukuoka, 812-8582, Japan
| | - Masakazu Toya
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka city, Fukuoka, 812-8582, Japan
| | - Masanari Kuwahara
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka city, Fukuoka, 812-8582, Japan
| | - Taisuke Uchida
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka city, Fukuoka, 812-8582, Japan
| | - Martin K. Lotz
- Department of Molecular Medicine, Scripps Research, 10550 North Torrey Pines Road, La Jolla, CA 92037, USA
| | - Yasuharu Nakashima
- Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka city, Fukuoka, 812-8582, Japan
| |
Collapse
|
79
|
Cao R, Yu H, Long H, Zhang H, Hao C, Shi L, Du Y, Jiao S, Guo A, Ma L, Wang Z. Low Deacetylation Degree Chitosan Oligosaccharide Protects against IL-1β Induced Inflammation and Enhances Autophagy Activity in Human Chondrocytes. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2021; 33:517-531. [PMID: 34704529 DOI: 10.1080/09205063.2021.1996962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Osteoarthritis (OA) is a degenerative joint disease, which can lead to joint pain, stiffness, deformity and dysfunction, that seriously affects the quality of life in patients. At present, the treatments of OA mainly include early pharmacological treatment and late joint replacement. However, current pharmacological treatment has limited efficacy and undesired side effects.Chitosan oligosaccharide (COS) is a kind of nontoxic and biodegradable oligo-saccharide, which is composed of 2-20 glucosamine or N-acetylglucosamine linked by β-1,4 glycosidic bond. Studies have shown that COS has significant biological properties like antimicrobial, anti-inflammatory, antioxidant, and anti-tumor, as well as immunoregulation ability. However, the effects of COS on OA have not been clarified. In this study, we explored the protective effects of COS with different degrees of deacetylation on chondrocytes stimulated by interleukin 1β (IL-1β) in vitro.The results showed that IL-1β inhibited cell proliferation and promoted cell apoptosis. Besides that, IL-1β increased the expression of the major chondro-degrading genes MMP13 and ADAMTS-5, while decreased the expression of COL2A and ACAN. COS with different degrees of deacetylation (HDACOS, MDACOS, LDACOS) had different effects on IL-1β induced inflammation. LDACOS had the most obvious anti-inflammatory effects to inhibit the expression of MMP13 and ADAMTS-5 while promoted the expression of COL2A and ACAN. In addition, we found that the expression of autophagy-related gene Beclin-1 was up-regulated, and the ratio of LC3-II/LC3-I was increased in the LDACOS group. Furthermore, transmission electron microscopy (TEM) analysis showed that the number of intracellular autophagosomes increased significantly with the treatment of LDACOS. Based on our research, we suggested that LDACOS could inhibit chondrocytes inflammation and promote cell autophagy, and might be a protective drug for the treatment of OA.
Collapse
Affiliation(s)
- Ruiqi Cao
- Department of Orthopedics, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Haomiao Yu
- Department of Orthopedics, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Huibin Long
- Department of Orthopedics, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Hongrui Zhang
- Department of Orthopedics, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Chao Hao
- Department of Orthopedics, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Lin Shi
- Department of Orthopedics, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Yuguang Du
- Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
| | - Siming Jiao
- Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
| | - Ai Guo
- Department of Orthopedics, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Lifeng Ma
- Department of Orthopedics, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Zhuo Wang
- Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China
| |
Collapse
|
80
|
Guo J, Xue J, Ding Z, Li X, Wang X, Xue H. Activated Phosphoinositide 3-Kinase/Akt/Mammalian Target of Rapamycin Signal and Suppressed Autophagy Participate in Protection Offered by Licochalcone A Against Amyloid-β Peptide Fragment 25-35-Induced Injury in SH-SY5Y Cells. World Neurosurg 2021; 157:e390-e400. [PMID: 34662660 DOI: 10.1016/j.wneu.2021.10.098] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 10/11/2021] [Indexed: 10/20/2022]
Abstract
OBJECTIVE To assess effect of licochalcone A (LicA) on amyloid-β (Aβ) peptide fragment 25-35-induced nerve injury and reveal the potential molecular mechanisms involved. METHODS Viability of SH-SY5Y cells was measured by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-tetrazolium bromide assay after treatment with Aβ25-35 and/or LicA, following which apoptosis was detected by flow cytometry and Hoechst staining. Then, reactive oxygen species, glutathione, and superoxide dismutase were measured with flow cytometry and spectrophotometry. The ultrastructure of mitochondria was examined by transmission electron microscopy, and the biomarker proteins of autophagy, apoptosis, and phosphoinositide 3-kinase (PI3K)/Akt/mammalian target of rapamycin (mTOR) signaling pathway were measured with Western blotting. RESULTS LicA improved cell viability and decreased lactate dehydrogenase leakage remarkably in Aβ25-35-induced injury in SH-SY5Y cells. After treatment with LicA, reactive oxygen species, glutathione, and superoxide dismutase levels in cells all were significantly decreased, which indicated that LicA has an antioxidative effect on Aβ25-35-induced oxidative injury. LicA could also significantly reduce Aβ25-35-induced autophagy in SH-SY5Y cells. In the cells injured by Aβ25-35, LicA prevented the transformation from light chain protein 3-I to light chain protein 3-II and reduced the levels of proteins GRP78, GRP94, CHOP, and Bax, but increased the levels of antiapoptotic protein and phosphorylation of PI3K, Akt, and mTOR. These effects of LicA were restored or suppressed by mTOR inhibitor rapamycin or PI3K inhibitor LY294002. CONCLUSIONS LicA protects SH-SY5Y cells against Aβ25-35-induced injury, wherein suppressed autophagy and activated PI3K/Akt/mTOR signaling pathway are involved, and mTOR-dependent autophagy at least plays some role.
Collapse
Affiliation(s)
- Jing Guo
- Xi'an Dongao Biosciences Co., Ltd., Xi'an, China
| | - Jing Xue
- Xi'an Dongao Biosciences Co., Ltd., Xi'an, China
| | | | - Xiang Li
- Xi'an Dongao Biosciences Co., Ltd., Xi'an, China
| | - Xiaoxin Wang
- Xi'an Dongao Biosciences Co., Ltd., Xi'an, China
| | - Hong Xue
- Xi'an Dongao Biosciences Co., Ltd., Xi'an, China.
| |
Collapse
|
81
|
Minton DM, Elliehausen CJ, Javors MA, Santangelo KS, Konopka AR. Rapamycin-induced hyperglycemia is associated with exacerbated age-related osteoarthritis. Arthritis Res Ther 2021; 23:253. [PMID: 34620223 PMCID: PMC8495984 DOI: 10.1186/s13075-021-02637-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 09/29/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The objective of this study was to determine if mechanistic target of rapamycin (mTOR) inhibition with or without AMP-activated protein kinase (AMPK) activation can protect against primary, age-related OA. DESIGN Dunkin-Hartley guinea pigs develop mild primary OA pathology by 5 months of age that progresses to moderate OA by 8 months of age. At 5 months, guinea pigs served as young control (n = 3) or were fed either a control diet (n = 8), a diet enriched with the mTOR-inhibitor rapamycin (Rap, 14 ppm, n = 8), or Rap with the AMPK-activator metformin (Rap+Met, 1000 ppm, n = 8) for 12 weeks. Knee joints were evaluated by OARSI scoring, micro-computed tomography, and immunohistochemistry. Glenohumeral articular cartilage was collected for western blotting. RESULTS Rap- and Rap+Met-treated guinea pigs displayed lower body weight than control. Rap and Rap+Met inhibited articular cartilage mTORC1 but not mTORC2 signaling. Rap+Met, but not Rap alone, stimulated AMPK. Despite lower body weight and articular cartilage mTORC1 inhibition, Rap- and Rap+Met-treated guinea pigs had greater OA severity in the medial tibial plateau due to articular cartilage structural damage and/or proteoglycan loss. Rap and Rap+Met increased plasma glucose compared to control. Plasma glucose concentration was positively correlated with proteoglycan loss, suggesting hyperglycemic stress after Rap treatment was related to worsened OA. CONCLUSIONS This is the first study to show that Rap induced increase in plasma glucose was associated with greater OA severity. Further, articular cartilage mTORC1 inhibition and bodyweight reduction by dietary Rap and Rap+Met did not appear to protect against primary OA during the prevailing hyperglycemia.
Collapse
Affiliation(s)
- Dennis M Minton
- Division of Geriatrics and Gerontology, Department of Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA
- Department of Kinesiology, University of Illinois at Urbana-Champaign, Champaign, Illinois , USA
| | - Christian J Elliehausen
- Division of Geriatrics and Gerontology, Department of Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA
- Department of Kinesiology, University of Illinois at Urbana-Champaign, Champaign, Illinois , USA
| | - Martin A Javors
- Departments of Psychiatry and Pharmacology, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
| | - Kelly S Santangelo
- Department of Microbiology, Immunology, Pathology, Colorado State University, Fort Collins, Colorado, USA
| | - Adam R Konopka
- Division of Geriatrics and Gerontology, Department of Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA.
- Department of Kinesiology, University of Illinois at Urbana-Champaign, Champaign, Illinois , USA.
- Geriatric Research, Education, and Clinical Center, William S. Middleton Memorial Veterans Hospital, Madison, Wisconsin, USA.
| |
Collapse
|
82
|
Skeletal muscle mitochondrial respiration in a model of age-related osteoarthritis is impaired after dietary rapamycin. Exp Gerontol 2021; 155:111579. [PMID: 34601078 DOI: 10.1016/j.exger.2021.111579] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 09/21/2021] [Accepted: 09/26/2021] [Indexed: 12/24/2022]
Abstract
A decline in skeletal muscle mitochondrial function is associated with the loss of skeletal muscle size and function during knee osteoarthritis (OA). We have recently reported that 12-weeks of dietary rapamycin (Rap, 14 ppm), with or without metformin (Met, 1000 ppm), increased plasma glucose and OA severity in male Dunkin Hartley (DH) guinea pigs, a model of naturally occurring, age-related OA. The purpose of the current study was to determine if increased OA severity after dietary Rap and Rap+Met was accompanied by impaired skeletal muscle mitochondrial function. Mitochondrial respiration and hydrogen peroxide (H2O2) emissions were evaluated in permeabilized muscle fibers via high-resolution respirometry and fluorometry using either a saturating bolus or titration of ADP. Rap and Rap+Met decreased complex I (CI)-linked respiration and tended to increase ADP sensitivity, consistent with previous findings in patients with end-stage OA. The decrease in CI-linked respiration was accompanied with lower CI protein abundance. Rap and Rap+Met did not change mitochondrial H2O2 emissions. There were no differences between mitochondrial function in Rap versus Rap+Met suggesting that Rap was likely driving the change in mitochondrial function. This is the first inquiry into how lifespan extending treatments Rap and Rap+Met can influence skeletal muscle mitochondria in a model of age-related OA. Collectively, our data suggest that Rap with or without Met inhibits CI-linked capacity and increases ADP sensitivity in DH guinea pigs that have greater OA severity.
Collapse
|
83
|
Ge Y, Chen Z, Fu Y, Xiao X, Xu H, Shan L, Tong P, Zhou L. Identification and validation of hub genes of synovial tissue for patients with osteoarthritis and rheumatoid arthritis. Hereditas 2021; 158:37. [PMID: 34583778 PMCID: PMC8480049 DOI: 10.1186/s41065-021-00201-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Accepted: 09/01/2021] [Indexed: 12/27/2022] Open
Abstract
Background Osteoarthritis (OA) and rheumatoid arthritis (RA) were two major joint diseases with similar clinical phenotypes. This study aimed to determine the mechanistic similarities and differences between OA and RA by integrated analysis of multiple gene expression data sets. Methods Microarray data sets of OA and RA were obtained from the Gene Expression Omnibus (GEO). By integrating multiple gene data sets, specific differentially expressed genes (DEGs) were identified. The Gene Ontology (GO) functional annotation, Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways and protein–protein interaction (PPI) network analysis of DEGs were conducted to determine hub genes and pathways. The “Cell Type Identification by Estimating Relative Subsets of RNA Transcripts (CIBERSORT)” algorithm was employed to evaluate the immune infiltration cells (IICs) profiles in OA and RA. Moreover, mouse models of RA and OA were established, and selected hub genes were verified in synovial tissues with quantitative polymerase chain reaction (qPCR). Results A total of 1116 DEGs were identified between OA and RA. GO functional enrichment analysis showed that DEGs were enriched in regulation of cell morphogenesis involved in differentiation, positive regulation of neuron differentiation, nuclear speck, RNA polymerase II transcription factor complex, protein serine/threonine kinase activity and proximal promoter sequence-specific DNA binding. KEGG pathway analysis showed that DEGs were enriched in EGFR tyrosine kinase inhibitor resistance, ubiquitin mediated proteolysis, FoxO signaling pathway and TGF-beta signaling pathway. Immune cell infiltration analysis identified 9 IICs with significantly different distributions between OA and RA samples. qPCR results showed that the expression levels of the hub genes (RPS6, RPS14, RPS25, RPL11, RPL27, SNRPE, EEF2 and RPL19) were significantly increased in OA samples compared to their counterparts in RA samples (P < 0.05). Conclusion This large-scale gene analyses provided new insights for disease-associated genes, molecular mechanisms as well as IICs profiles in OA and RA, which may offer a new direction for distinguishing diagnosis and treatment between OA and RA.
Collapse
Affiliation(s)
- Yanzhi Ge
- The First Affiliated Hospital, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, P. R. China
| | - Zuxiang Chen
- The First Affiliated Hospital, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, P. R. China
| | - Yanbin Fu
- Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, School of Medicine, South China University of Technology, Guangzhou, Guangdong, P. R. China
| | - Xiujuan Xiao
- College of Pharmacy, Zhejiang Chinese Medical University, Hangzhou, P. R. China
| | - Haipeng Xu
- The Third Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, P. R. China
| | - Letian Shan
- The First Affiliated Hospital, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, P. R. China.
| | - Peijian Tong
- The First Affiliated Hospital, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, P. R. China.
| | - Li Zhou
- The First Affiliated Hospital, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, P. R. China.
| |
Collapse
|
84
|
Zhang XX, He SH, Liang X, Li W, Li TF, Li DF. Aging, Cell Senescence, the Pathogenesis and Targeted Therapies of Osteoarthritis. Front Pharmacol 2021; 12:728100. [PMID: 34497523 PMCID: PMC8419276 DOI: 10.3389/fphar.2021.728100] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Accepted: 08/10/2021] [Indexed: 01/15/2023] Open
Abstract
Osteoarthritis (OA) is a chronic, debilitating joint disease characterized by progressive destruction of articular cartilage. For a long time, OA has been considered as a degenerative disease, while recent observations indicate the mechanisms responsible for the pathogenesis of OA are multifaceted. Aging is a key factor in its development. Current treatments are palliative and no disease modifying anti-osteoarthritis drugs (DMOADs) are available. In addition to articular cartilage degradation, cellular senescence, synovial inflammation, and epigenetic alterations may all have a role in its formation. Accumulating data demonstrate a clear relationship between the senescence of articular chondrocytes and OA formation and progression. Inhibition of cell senescence may help identify new agents with the properties of DMOADs. Several anti-cellular senescence strategies have been proposed and these include sirtuin-activating compounds (STACs), senolytics, and senomorphics drugs. These agents may selectively remove senescent cells or ameliorate their harmful effects. The results from preclinical experiments and clinical trials are inspiring. However, more studies are warranted to confirm their efficacy, safety profiles and adverse effects of these agents.
Collapse
Affiliation(s)
- Xin-Xin Zhang
- Department of Rheumatology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Shi-Hao He
- Department of Rheumatology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xu Liang
- Department of Rheumatology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Wei Li
- Department of Rheumatology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Tian-Fang Li
- Department of Rheumatology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Dai-Feng Li
- Department of Orthopaedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Department of Magnetic Resonance Imaging, Henan Key Laboratory of Functional Magnetic Resonance Imaging and Molecular Imaging, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| |
Collapse
|
85
|
TFEB phosphorylation on Serine 211 is induced by autophagy in human synovial fibroblasts and by p62/SQSTM1 overexpression in HEK293 cells. Biochem J 2021; 478:3145-3155. [PMID: 34405859 PMCID: PMC8421036 DOI: 10.1042/bcj20210174] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 08/10/2021] [Accepted: 08/18/2021] [Indexed: 11/17/2022]
Abstract
Autophagy receptor p62/SQSTM1 signals a complex network that links autophagy-lysosomal system to proteasome. Phosphorylation of p62 on Serine 349 (P-Ser349 p62) is involved in a cell protective, antioxidant pathway. We have shown previously that P-Ser349 p62 occurs and is rapidly degraded during human synovial fibroblasts autophagy. In this work we observed that fingolimod (FTY720), used as a medication for multiple sclerosis, induced coordinated expression of p62, P-Ser349 p62 and inhibitory TFEB form, phosphorylated on Serine 211 (P-Ser211 TFEB), in human synovial fibroblasts. These effects were mimicked and potentiated by proteasome inhibitor MG132. In addition, FTY720 induced autophagic flux, LC3B-II up-regulation, Akt phosphorylation inhibition on Serine 473 but down-regulated TFEB, suggesting stalled autophagy. FTY720 decreased cytoplasmic fraction contained TFEB but induced TFEB in nuclear fraction. FTY720-induced P-Ser211 TFEB was mainly found in membrane fraction. Autophagy and VPS34 kinase inhibitor, autophinib, further increased FTY720-induced P-Ser349 p62 but inhibited concomitant expression of P-Ser211 TFEB. These results suggested that P-Ser211 TFEB expression depends on autophagy. Overexpression of GFP tagged TFEB in HEK293 cells showed concomitant expression of its phosphorylated form on Serine 211, that was down-regulated by autophinib. These results suggested that autophagy might be autoregulated through P-Ser211 TFEB as a negative feedback loop. Of interest, overexpression of p62, p62 phosphorylation mimetic (S349E) mutant and phosphorylation deficient mutant (S349A) in HEK293 cells markedly induced P-Ser211 TFEB. These results showed that p62 is involved in regulation of TFEB phosphorylation on Serine 211 but that this involvement does not depend on p62 phosphorylation on Serine 349.
Collapse
|
86
|
Jung YY, Kim C, Ha IJ, Lee SG, Lee J, Um JY, Ahn KS. Pyrimethamine Modulates Interplay between Apoptosis and Autophagy in Chronic Myelogenous Leukemia Cells. Int J Mol Sci 2021; 22:8147. [PMID: 34360911 PMCID: PMC8347135 DOI: 10.3390/ijms22158147] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 07/23/2021] [Accepted: 07/23/2021] [Indexed: 12/15/2022] Open
Abstract
Pyrimethamine (Pyri) is being used in combination with other medications to treat serious parasitic infections of the body, brain, or eye and to also reduce toxoplasmosis infection in the patients with HIV infection. Additionally, Pyri can display significant anti-cancer potential in different tumor models, but the possible mode of its actions remains unclear. Hence, in this study, the possible anti-tumoral impact of Pyri on human chronic myeloid leukemia (CML) was deciphered. Pyri inhibited cell growth in various types of tumor cells and exhibited a marked inhibitory action on CML cells. In addition to apoptosis, Pyri also triggered sustained autophagy. Targeted inhibition of autophagy sensitized the tumor cells to Pyri-induced apoptotic cell death. Moreover, the activation of signal transducer and activator of transcription 5 (STAT5) and its downstream target gene Bcl-2 was attenuated by Pyri. Accordingly, small interfering RNA (siRNA)-mediated STAT5 knockdown augmented Pyri-induced autophagy and apoptosis and promoted the suppressive action of Pyri on cell viability. Moreover, ectopic overexpression of Bcl-2 protected the cells from Pyri-mediated autophagy and apoptosis. Overall, the data indicated that the attenuation of STAT5-Bcl-2 cascade by Pyri can regulate its growth inhibitory properties by simultaneously targeting both apoptosis and autophagy cell death mechanism(s).
Collapse
Affiliation(s)
- Young Yun Jung
- Department of Science in Korean Medicine, Kyung Hee University, 24 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Korea; (Y.Y.J.); (C.K.); (S.-G.L.); (J.-Y.U.)
| | - Chulwon Kim
- Department of Science in Korean Medicine, Kyung Hee University, 24 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Korea; (Y.Y.J.); (C.K.); (S.-G.L.); (J.-Y.U.)
| | - In Jin Ha
- Korean Medicine Clinical Trial Center (K-CTC), Korean Medicine Hospital, Kyung Hee University, Seoul 02447, Korea; (I.J.H.); (J.L.)
| | - Seok-Geun Lee
- Department of Science in Korean Medicine, Kyung Hee University, 24 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Korea; (Y.Y.J.); (C.K.); (S.-G.L.); (J.-Y.U.)
- Korean Medicine Clinical Trial Center (K-CTC), Korean Medicine Hospital, Kyung Hee University, Seoul 02447, Korea; (I.J.H.); (J.L.)
| | - Junhee Lee
- Korean Medicine Clinical Trial Center (K-CTC), Korean Medicine Hospital, Kyung Hee University, Seoul 02447, Korea; (I.J.H.); (J.L.)
| | - Jae-Young Um
- Department of Science in Korean Medicine, Kyung Hee University, 24 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Korea; (Y.Y.J.); (C.K.); (S.-G.L.); (J.-Y.U.)
| | - Kwang Seok Ahn
- Department of Science in Korean Medicine, Kyung Hee University, 24 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Korea; (Y.Y.J.); (C.K.); (S.-G.L.); (J.-Y.U.)
| |
Collapse
|
87
|
Ramasamy TS, Yee YM, Khan IM. Chondrocyte Aging: The Molecular Determinants and Therapeutic Opportunities. Front Cell Dev Biol 2021; 9:625497. [PMID: 34336816 PMCID: PMC8318388 DOI: 10.3389/fcell.2021.625497] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 04/28/2021] [Indexed: 12/17/2022] Open
Abstract
Osteoarthritis (OA) is a joint degenerative disease that is an exceedingly common problem associated with aging. Aging is the principal risk factor for OA, but damage-related physiopathology of articular chondrocytes probably drives the mechanisms of joint degeneration by a progressive decline in the homeostatic and regenerative capacity of cells. Cellular aging is the manifestation of a complex interplay of cellular and molecular pathways underpinned by transcriptional, translational, and epigenetic mechanisms and niche factors, and unraveling this complexity will improve our understanding of underlying molecular changes that affect the ability of the articular cartilage to maintain or regenerate itself. This insight is imperative for developing new cell and drug therapies for OA disease that will target the specific causes of age-related functional decline. This review explores the key age-related changes within articular chondrocytes and discusses the molecular mechanisms that are commonly perturbed as cartilage ages and degenerates. Current efforts and emerging potential therapies in treating OA that are being employed to halt or decelerate the aging processes are also discussed.
Collapse
Affiliation(s)
- Thamil Selvee Ramasamy
- Stem Cell Biology Laboratory, Department of Molecular Medicine, Faculty of Medicine, Universiti Malaya, Kuala Lumpur, Malaysia.,Cell and Molecular Biology Laboratory, The Dean's Office, Faculty of Medicine, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Yong Mei Yee
- Stem Cell Biology Laboratory, Department of Molecular Medicine, Faculty of Medicine, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Ilyas M Khan
- Centre of NanoHealth, Swansea University Medical School, Swansea, United Kingdom
| |
Collapse
|
88
|
Chang L, Liu A, Xu J, Xu X, Dai J, Wu R, Yan W, Wang R, Sun Z, Ikegawa S, Jiang Q, Shi D. TDP-43 maintains chondrocyte homeostasis and alleviates cartilage degradation in osteoarthritis. Osteoarthritis Cartilage 2021; 29:1036-1047. [PMID: 33781898 DOI: 10.1016/j.joca.2021.03.015] [Citation(s) in RCA: 6] [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: 10/24/2020] [Revised: 03/04/2021] [Accepted: 03/15/2021] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Osteoarthritis (OA) is the most prevalent age-related disorder due to cartilage degradation. Previous studies have identified aberrant chondrocyte homeostasis under extracellular stress as a key pathological mechanism behind cartilage degradation in OA. TDP-43, a DNA/RNA-binding protein has been demonstrated to participate in processing many extracellular stress responses; however, understanding of the role of TDP-43 in OA is limited. This study aims to investigate the role of TDP-43 in chondrocyte homeostasis and cartilage degradation in OA. METHODS The role of TDP-43 during degradation of cartilage is examined by experimental posttraumatic OA animal models and human cartilage specimens. Cartilage degradation is assessed by histological analysis, qPCR, and Western blot. The molecular mechanisms are investigated in vitro using human primary chondrocytes. RESULTS TDP-43 decreases significantly in degenerated cartilage. TDP-43 concentration is positively correlated with IL-1β concentration in synovial fluid derived from OA patients (Pearson r = 0.95, CI (95%) [0.80, 0.99], P < 0.0001). Intra-articular injection of recombinant TDP-43 significantly alleviates cartilage degradation and subchondral bone remodeling in vivo. In vitro mechanistic analyses show that TDP-43 maintains chondrocyte homeostasis under oxidative stress through regulating stress granule dynamics via G3BP1. CONCLUSION The present study indicates that TDP-43 maintains chondrocyte homeostasis under oxidative stress and alleviates cartilage degeneration in osteoarthritis, identifying TDP-43 as a potential target for the diagnosis and treatment of knee OA.
Collapse
Affiliation(s)
- L Chang
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Sports Medicine and Adult Reconstructive Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China; Musculoskeletal Research Laboratory, Department of Orthopedics & Traumatology, The Chinese University of Hong Kong, Hong Kong, China.
| | - A Liu
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Sports Medicine and Adult Reconstructive Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China.
| | - J Xu
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Sports Medicine and Adult Reconstructive Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China.
| | - X Xu
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Sports Medicine and Adult Reconstructive Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China.
| | - J Dai
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Sports Medicine and Adult Reconstructive Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China.
| | - R Wu
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Sports Medicine and Adult Reconstructive Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China.
| | - W Yan
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Sports Medicine and Adult Reconstructive Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China.
| | - R Wang
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Sports Medicine and Adult Reconstructive Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China.
| | - Z Sun
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Sports Medicine and Adult Reconstructive Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China.
| | - S Ikegawa
- Laboratory of Bone and Joint Diseases, Center for Integrative Medical Sciences, RIKEN, Tokyo, Japan.
| | - Q Jiang
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Sports Medicine and Adult Reconstructive Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China.
| | - D Shi
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Sports Medicine and Adult Reconstructive Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, 321 Zhongshan Road, Nanjing, 210008, Jiangsu, PR China.
| |
Collapse
|
89
|
Thorup AS, Strachan D, Caxaria S, Poulet B, Thomas BL, Eldridge SE, Nalesso G, Whiteford JR, Pitzalis C, Aigner T, Corder R, Bertrand J, Dell'Accio F. ROR2 blockade as a therapy for osteoarthritis. Sci Transl Med 2021; 12:12/561/eaax3063. [PMID: 32938794 DOI: 10.1126/scitranslmed.aax3063] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 02/20/2020] [Accepted: 08/26/2020] [Indexed: 12/19/2022]
Abstract
Osteoarthritis is characterized by the loss of the articular cartilage, bone remodeling, pain, and disability. No pharmacological intervention can currently halt progression of osteoarthritis. Here, we show that blocking receptor tyrosine kinase-like orphan receptor 2 (ROR2) improves cartilage integrity and pain in osteoarthritis models by inhibiting yes-associated protein (YAP) signaling. ROR2 was up-regulated in the cartilage in response to inflammatory cytokines and mechanical stress. The main ligand for ROR2, WNT5A, and the targets YAP and connective tissue growth factor were up-regulated in osteoarthritis in humans. In vitro, ROR2 overexpression inhibited chondrocytic differentiation. Conversely, ROR2 blockade triggered chondrogenic differentiation of C3H10T1/2 cells and suppressed the expression of the cartilage-degrading enzymes a disintegrin and metalloproteinase with thrombospondin motifs (ADAMTS)-4 and ADAMTS-5. The chondrogenic effect of ROR2 blockade in the cartilage was independent of WNT signaling and was mediated by down-regulation of YAP signaling. ROR2 signaling induced G protein and Rho-dependent nuclear accumulation of YAP, and YAP inhibition was required but not sufficient for ROR2 blockade-induced chondrogenesis. ROR2 silencing protected mice from instability-induced osteoarthritis with improved structural outcomes, sustained pain relief, and without apparent side effects or organ toxicity. Last, ROR2 silencing in human articular chondrocytes transplanted in nude mice led to the formation of cartilage organoids with more and better differentiated extracellular matrix, suggesting that the anabolic effect of ROR2 blockade is conserved in humans. Thus, ROR2 blockade is efficacious and well tolerated in preclinical animal models of osteoarthritis.
Collapse
Affiliation(s)
- Anne-Sophie Thorup
- William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London EC1M 6BQ, UK.
| | - Danielle Strachan
- William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London EC1M 6BQ, UK
| | - Sara Caxaria
- William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London EC1M 6BQ, UK
| | - Blandine Poulet
- Institute of Ageing and Chronic Disease, University of Liverpool, Liverpool L7 8TX, UK
| | - Bethan L Thomas
- William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London EC1M 6BQ, UK
| | - Suzanne E Eldridge
- William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London EC1M 6BQ, UK
| | - Giovanna Nalesso
- Department of Veterinary Preclinical Sciences, School of Veterinary Medicine, Faculty of Health and Medical Sciences, University of Surrey, Guildford GU2 7AL, UK
| | - James R Whiteford
- William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London EC1M 6BQ, UK
| | - Costantino Pitzalis
- William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London EC1M 6BQ, UK
| | - Thomas Aigner
- Institute of Pathology, Medical Center Coburg, Ketschendorferstrasse 33, 96450 Coburg, Germany
| | - Roger Corder
- William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London EC1M 6BQ, UK
| | - Jessica Bertrand
- Department of Orthopaedic Surgery, Otto-von-Guericke University, 39120 Magdeburg, Germany
| | - Francesco Dell'Accio
- William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London EC1M 6BQ, UK.
| |
Collapse
|
90
|
Perez-Tejeiro JM, Csukasi F. DEPTOR in Skeletal Development and Diseases. Front Genet 2021; 12:667283. [PMID: 34122519 PMCID: PMC8191632 DOI: 10.3389/fgene.2021.667283] [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] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 04/12/2021] [Indexed: 12/02/2022] Open
Abstract
Discovered in 2009, the DEP-domain containing mTOR-interacting protein, DEPTOR, is a known regulator of the mechanistic target of rapamycin (mTOR), an evolutionarily conserved kinase that regulates diverse cellular processes in response to environmental stimuli. DEPTOR was originally identified as a negative regulator of mTOR complexes 1 (mTORC1) and 2 (mTORC2). However, recent discoveries have started to unravel the roles of DEPTOR in mTOR-independent responses. In the past few years, mTOR emerged as an important regulator of skeletal development, growth, and homeostasis; the dysregulation of its activity contributes to the development of several skeletal diseases, both chronic and genetic. Even more recently, several groups have reported on the relevance of DEPTOR in skeletal biology through its action on mTOR-dependent and mTOR-independent pathways. In this review, we summarize the current understanding of DEPTOR in skeletal development and disease.
Collapse
Affiliation(s)
- Jose Miguel Perez-Tejeiro
- Department of Cell Biology, Genetics and Physiology, Faculty of Sciences, IBIMA, University of Málaga, Málaga, Spain.,Biomaterials and Nanomedicine (CIBER-BBN), Andalusian Centre for Nanomedicine and Biotechnology-BIONAND, Networking Biomedical Research Center in Bioengineering, Málaga, Spain
| | - Fabiana Csukasi
- Department of Cell Biology, Genetics and Physiology, Faculty of Sciences, IBIMA, University of Málaga, Málaga, Spain.,Biomaterials and Nanomedicine (CIBER-BBN), Andalusian Centre for Nanomedicine and Biotechnology-BIONAND, Networking Biomedical Research Center in Bioengineering, Málaga, Spain
| |
Collapse
|
91
|
Ash D, Sudhahar V, Youn SW, Okur MN, Das A, O'Bryan JP, McMenamin M, Hou Y, Kaplan JH, Fukai T, Ushio-Fukai M. The P-type ATPase transporter ATP7A promotes angiogenesis by limiting autophagic degradation of VEGFR2. Nat Commun 2021; 12:3091. [PMID: 34035268 PMCID: PMC8149886 DOI: 10.1038/s41467-021-23408-1] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 04/26/2021] [Indexed: 01/05/2023] Open
Abstract
VEGFR2 (KDR/Flk1) signaling in endothelial cells (ECs) plays a central role in angiogenesis. The P-type ATPase transporter ATP7A regulates copper homeostasis, and its role in VEGFR2 signaling and angiogenesis is entirely unknown. Here, we describe the unexpected crosstalk between the Copper transporter ATP7A, autophagy, and VEGFR2 degradation. The functional significance of this Copper transporter was demonstrated by the finding that inducible EC-specific ATP7A deficient mice or ATP7A-dysfunctional ATP7Amut mice showed impaired post-ischemic neovascularization. In ECs, loss of ATP7A inhibited VEGF-induced VEGFR2 signaling and angiogenic responses, in part by promoting ligand-induced VEGFR2 protein degradation. Mechanistically, VEGF stimulated ATP7A translocation from the trans-Golgi network to the plasma membrane where it bound to VEGFR2, which prevented autophagy-mediated lysosomal VEGFR2 degradation by inhibiting autophagic cargo/adapter p62/SQSTM1 binding to ubiquitinated VEGFR2. Enhanced autophagy flux due to ATP7A dysfunction in vivo was confirmed by autophagy reporter CAG-ATP7Amut -RFP-EGFP-LC3 transgenic mice. In summary, our study uncovers a novel function of ATP7A to limit autophagy-mediated degradation of VEGFR2, thereby promoting VEGFR2 signaling and angiogenesis, which restores perfusion recovery and neovascularization. Thus, endothelial ATP7A is identified as a potential therapeutic target for treatment of ischemic cardiovascular diseases.
Collapse
Affiliation(s)
- Dipankar Ash
- Vascular Biology Center, Medical College of Georgia at Augusta University, Augusta, GA, USA
| | - Varadarajan Sudhahar
- Vascular Biology Center, Medical College of Georgia at Augusta University, Augusta, GA, USA
- Charlie Norwood Veterans Affairs Medical Center, Augusta, GA, USA
| | - Seock-Won Youn
- Vascular Biology Center, Medical College of Georgia at Augusta University, Augusta, GA, USA
- Department of Physiology and Biophysics, University of Illinois College of Medicine, Chicago, IL, USA
| | - Mustafa Nazir Okur
- Laboratory of Molecular Gerontology, National Institute on Aging, National Institutes of Health, Baltimore, MD, USA
| | - Archita Das
- Vascular Biology Center, Medical College of Georgia at Augusta University, Augusta, GA, USA
| | - John P O'Bryan
- Department of Cell and Molecular Pharmacology and Experimental Therapeutics, Hollings Cancer Center, Medical University of South Carolina, Charleston, SC, USA
- Ralph H. Johnson VA Medical Center, Charleston, SC, USA
| | - Maggie McMenamin
- Vascular Biology Center, Medical College of Georgia at Augusta University, Augusta, GA, USA
- Charlie Norwood Veterans Affairs Medical Center, Augusta, GA, USA
| | - Yali Hou
- Vascular Biology Center, Medical College of Georgia at Augusta University, Augusta, GA, USA
- Charlie Norwood Veterans Affairs Medical Center, Augusta, GA, USA
| | - Jack H Kaplan
- Department of Biochemistry and Molecular Genetics, University of Illinois College of Medicine, Chicago, IL, USA
| | - Tohru Fukai
- Vascular Biology Center, Medical College of Georgia at Augusta University, Augusta, GA, USA.
- Charlie Norwood Veterans Affairs Medical Center, Augusta, GA, USA.
- Departments of Pharmacology and Toxicology, Medical College of Georgia at Augusta University, Augusta, GA, USA.
| | - Masuko Ushio-Fukai
- Vascular Biology Center, Medical College of Georgia at Augusta University, Augusta, GA, USA.
- Department of Medicine (Cardiology), Medical College of Georgia at Augusta University, Augusta, GA, USA.
| |
Collapse
|
92
|
Wang J, Sun Y, Liu J, Yang B, Wang T, Zhang Z, Jiang X, Guo Y, Zhang Y. Roles of long non‑coding RNA in osteoarthritis (Review). Int J Mol Med 2021; 48:133. [PMID: 34013375 PMCID: PMC8148092 DOI: 10.3892/ijmm.2021.4966] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 05/05/2021] [Indexed: 02/01/2023] Open
Abstract
Osteoarthritis (OA) is a chronic bone and joint disease characterized by articular cartilage degeneration and joint inflammation and is the most common form of arthritis. The clinical manifestations of OA are chronic pain and joint activity disorder, which severely affect the patient quality of life. Long non-coding RNA (lncRNA) is a class of RNA molecules >200 nucleotides long that are expressed in animals, plants, yeast, prokaryotes and viruses. lncRNA molecules lack an open reading frame and are not translated into protein. The present review collated the results of recent studies on the role of lncRNA in the pathogenesis of OA to provide information for the prevention, diagnosis and treatment of OA.
Collapse
Affiliation(s)
- Jicheng Wang
- Department of Joint Surgery, Weifang People's Hospital, Weifang, Shandong 261000, P.R. China
| | - Yanshan Sun
- Department of Joint Surgery, Weifang People's Hospital, Weifang, Shandong 261000, P.R. China
| | - Jianyong Liu
- Department of Joint Surgery, Weifang People's Hospital, Weifang, Shandong 261000, P.R. China
| | - Bo Yang
- Department of Joint Surgery, Weifang People's Hospital, Weifang, Shandong 261000, P.R. China
| | - Tengyun Wang
- Department of Joint Surgery, Weifang People's Hospital, Weifang, Shandong 261000, P.R. China
| | - Zhen Zhang
- Department of Joint Surgery, Weifang People's Hospital, Weifang, Shandong 261000, P.R. China
| | - Xin Jiang
- Department of Joint Surgery, Weifang People's Hospital, Weifang, Shandong 261000, P.R. China
| | - Yongzhi Guo
- Department of Joint Surgery, Weifang People's Hospital, Weifang, Shandong 261000, P.R. China
| | - Yangyang Zhang
- Department of Joint Surgery, Weifang People's Hospital, Weifang, Shandong 261000, P.R. China
| |
Collapse
|
93
|
Abstract
Osteoarthritis (OA) is considered the most frequent degenerative disease and is characterized by cartilage degradation and synovial inflammation. Fibroblast-like synoviocytes (FLSs) are vital to synovial inflammation in OA. Type 2 diabetes mellitus (T2DM) is characterized by insulin resistance and hyperinsulinemia (HINS) and has been demonstrated to be an independent risk factor for OA. Autophagy is involved in the processes of various inflammatory diseases, and autophagy inhibition can stimulate OA development. Thus, we aimed to investigate the role of insulin in the inflammatory phenotype and autophagy of FLSs in OA. The data showed that cell viability and proinflammatory cytokine production in FLSs were both increased after insulin stimulation. We also found that high insulin could promote macrophage infiltration and chemokine production but inhibited autophagy in FLSs. To further explore the potential mechanisms, the effects of insulin on PI3K/Akt/mTOR and NF-ĸB signaling activation were evaluated. The results indicated that insulin activated PI3K/Akt/mTOR/NF-ĸB signaling, and the above-mentioned inflammatory responses, including autophagy inhibition, were notably attenuated by specific signaling inhibitors in the presence of high insulin. Moreover, the data showed that a positive feedback loop existed between proinflammatory cytokines (e.g., IL-1β, IL-6, and TNF-α) and PI3K/mTOR/Akt/NF-ĸB signaling in FLSs, and insulin enhanced this feedback loop to accelerate OA progression. Our study suggests that insulin may be a novel therapeutic strategy for OA prevention and treatment in the future.
Collapse
Affiliation(s)
- Li Qiao
- Department of Joint Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, 250021, China
| | - Yi Li
- Department of Joint Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, 250021, China
| | - Shui Sun
- Department of Joint Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, 250021, China.
| |
Collapse
|
94
|
Liu L, Feng Y, Hu S, Li H, Li Y, Ke J, Long X. PDCD4 suppresses autophagy and promotes apoptosis via Akt in chondrocytes of temporomandibular joint osteoarthritis. Oral Dis 2021. [DOI: 10.1111/odi.13559] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Li Liu
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) Key Laboratory of Oral Biomedicine Ministry of Education (KLOBM) School and Hospital of Stomatology Wuhan University Wuhan Hubei Province China
| | - Yaping Feng
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) Key Laboratory of Oral Biomedicine Ministry of Education (KLOBM) School and Hospital of Stomatology Wuhan University Wuhan Hubei Province China
| | - Shiyu Hu
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) Key Laboratory of Oral Biomedicine Ministry of Education (KLOBM) School and Hospital of Stomatology Wuhan University Wuhan Hubei Province China
| | - Huimin Li
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) Key Laboratory of Oral Biomedicine Ministry of Education (KLOBM) School and Hospital of Stomatology Wuhan University Wuhan Hubei Province China
| | - Yanyan Li
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) Key Laboratory of Oral Biomedicine Ministry of Education (KLOBM) School and Hospital of Stomatology Wuhan University Wuhan Hubei Province China
| | - Jin Ke
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) Key Laboratory of Oral Biomedicine Ministry of Education (KLOBM) School and Hospital of Stomatology Wuhan University Wuhan Hubei Province China
| | - Xing Long
- Department of Oral and Maxillofacial Surgery School and Hospital of Stomatology Wuhan University Wuhan Hubei Province China
| |
Collapse
|
95
|
Zheng L, Zhang Z, Sheng P, Mobasheri A. The role of metabolism in chondrocyte dysfunction and the progression of osteoarthritis. Ageing Res Rev 2021; 66:101249. [PMID: 33383189 DOI: 10.1016/j.arr.2020.101249] [Citation(s) in RCA: 285] [Impact Index Per Article: 95.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 12/16/2020] [Accepted: 12/21/2020] [Indexed: 02/07/2023]
Abstract
Osteoarthritis (OA) is a degenerative joint disease characterized by low-grade inflammation and high levels of clinical heterogeneity. Aberrant chondrocyte metabolism is a response to changes in the inflammatory microenvironment and may play a key role in cartilage degeneration and OA progression. Under conditions of environmental stress, chondrocytes tend to adapt their metabolism to microenvironmental changes by shifting from one metabolic pathway to another, for example from oxidative phosphorylation to glycolysis. Similar changes occur in other joint cells, including synoviocytes. Switching between these pathways is implicated in metabolic alterations that involve mitochondrial dysfunction, enhanced anaerobic glycolysis, and altered lipid and amino acid metabolism. The shift between oxidative phosphorylation and glycolysis is mainly regulated by the AMP-activated protein kinase (AMPK) and mechanistic target of rapamycin (mTOR) pathways. Chondrocyte metabolic changes are likely to be a feature of different OA phenotypes. Determining the role of chondrocyte metabolism in OA has revealed key features of disease pathogenesis. Future research should place greater emphasis on immunometabolism and altered metabolic pathways as a means to understand the pathophysiology of age-related OA. This knowledge will advance the development of new drugs against therapeutic targets of metabolic significance.
Collapse
Affiliation(s)
- Linli Zheng
- Department of Joint Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510080 China
| | - Ziji Zhang
- Department of Joint Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510080 China
| | - Puyi Sheng
- Department of Joint Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510080 China.
| | - Ali Mobasheri
- Department of Joint Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510080 China; Research Unit of Medical Imaging, Physics and Technology, Faculty of Medicine, University of Oulu, PO Box 5000, FI-90014 Oulu, Finland; Department of Regenerative Medicine, State Research Institute Centre for Innovative Medicine, LT-08406, Vilnius, Lithuania; Departments of Orthopedics, Rheumatology and Clinical Immunology, University Medical Center Utrecht, 508 GA, Utrecht, The Netherlands.
| |
Collapse
|
96
|
Abstract
Objectives
This study aims to explore the mechanism by which osteoblast autophagy participated in glucocorticoid-induced femoral head necrosis (FHN). Materials and methods
Thirty male specific-pathogen-free C57 mice (age, one month; weighing 20-25 g) were randomly divided into blank control, dexamethasone and rapamycin-dexamethasone groups (n=10). After six weeks of intervention, right femoral head was obtained to observe morphology and to calculate percentage of empty lacunae. MC3T3-E1 cells were randomly divided into normal, dexamethasone, rapamycin and dexamethasone-rapamycin groups, and cultured for 24 h. Microtubule-associated protein 1 light chain 3 (LC3)-I, LC3-II, mammalian target of rapamycin (mTOR) and Beclin-1 protein expressions were detected by Western blot. Results
In rapamycin-dexamethasone group, some bone trabeculae in medullary cavity ruptured and atrophied, and subchondral bone underwent local necrosis. The total apoptosis rates of dexamethasone and rapamycin-dexamethasone groups surpassed that of blank control group, and the former two groups had significantly different rates (p<0.001). LC3-II/LC3-I of dexamethasone group was lower than those of rapamycin and dexamethasone-rapamycin groups (p<0.001), and the ratio of rapamycin group surpassed that of dexamethasone-rapamycin group (p<0.001). Dexamethasone group had higher mTOR protein expression than those of rapamycin and dexamethasone- rapamycin groups (p<0.001), and the expression of rapamycin group was lower than that of dexamethasone-rapamycin group (p<0.001). The Beclin-1 protein expression of dexamethasone group was lower than those of rapamycin and dexamethasone- rapamycin groups (p<0.001), and the expression of rapamycin group exceeded that of dexamethasone-rapamycin group (p<0.05). Conclusion Osteoblast autophagy may play a crucial protective role in dexamethasone-induced FHN. The attenuation of autophagy may be related to the affected expressions of key autophagy regulators mTOR and Beclin-1.
Collapse
|
97
|
Guo YF, Su T, Yang M, Li CJ, Guo Q, Xiao Y, Huang Y, Liu Y, Luo XH. The role of autophagy in bone homeostasis. J Cell Physiol 2021; 236:4152-4173. [PMID: 33452680 DOI: 10.1002/jcp.30111] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 09/24/2020] [Accepted: 10/05/2020] [Indexed: 12/15/2022]
Abstract
Autophagy is an evolutionarily conserved intracellular process and is considered one of the main catabolism pathways. In the process of autophagy, cells are digested nonselectively or selectively to recover nutrients and energy, so it is regarded as an antiaging process. In addition to the essential role of autophagy in cellular homeostasis, autophagy is a stress response mechanism for cell survival. Here, we review recent literature describing the pathway of autophagy and its role in different bone cell types, including osteoblasts, osteoclasts, and osteocytes. Also discussed is the mechanism of autophagy in bone diseases associated with bone homeostasis, including osteoporosis and Paget's disease. Finally, we discuss the application of autophagy regulators in bone diseases. This review aims to introduce autophagy, summarize the understanding of its relevance in bone physiology, and discuss its role and therapeutic potential in the pathogenesis of bone diseases such as osteoporosis.
Collapse
Affiliation(s)
- Yi-Fan Guo
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Tian Su
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Mi Yang
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Chang-Jun Li
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Qi Guo
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Ye Xiao
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Yan Huang
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Ya Liu
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Xiang-Hang Luo
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital of Central South University, Changsha, Hunan, China
| |
Collapse
|
98
|
Clock knockdown attenuated reactive oxygen species-mediated senescence of chondrocytes through restoring autophagic flux. Life Sci 2021; 269:119036. [PMID: 33450259 DOI: 10.1016/j.lfs.2021.119036] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 01/03/2021] [Accepted: 01/04/2021] [Indexed: 11/20/2022]
Abstract
AIMS Articular cartilage degeneration has been recognized as the primary pathological change in osteoarthritis (OA). Mechanisms that govern the shift from cartilage homeostasis to OA remain unknown. Previous studies have reported that intrinsic circadian clock in chondrocytes could function to optimize cartilage repair/remodeling to optimum times of day, but little is known about its molecular mechanisms. This study attempted to investigate the potential role and mechanism of circadian gene Clock in OA pathology. MATERIALS AND METHODS The expression of Clock in OA chondrocytes and cartilage was detected by qRT-PCR, western blot and immunohistochemistry. Temporal gene expression changes were analyzed using qRT-PCR in chondrocytes transfected with siClock following dexamethasone synchronization. In addition, the effect of Clock knockdown on senescent phenotypes and autophagic flux was evaluated in chondrocytes treated with siClock or siCntrl. KEY FINDINGS The expression of Clock was up-regulated in OA cartilage from humans and mouse models. Clock knockdown had no influence on rhythmic expression of the downstream genes in primary chondrocytes. We also found that Clock knockdown elevated antioxidant enzyme activities, diminished reactive oxygen species (ROS) production and attenuated senescence of chondrocytes via restoring autophagic flux. SIGNIFICANCE Clock knockdown can attenuate ROS-mediated senescence of chondrocytes through restoring autophagic flux in non-circadian manner, providing a potential therapeutic target for OA.
Collapse
|
99
|
Coryell PR, Diekman BO, Loeser RF. Mechanisms and therapeutic implications of cellular senescence in osteoarthritis. Nat Rev Rheumatol 2021; 17:47-57. [PMID: 33208917 PMCID: PMC8035495 DOI: 10.1038/s41584-020-00533-7] [Citation(s) in RCA: 307] [Impact Index Per Article: 102.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/16/2020] [Indexed: 12/13/2022]
Abstract
The development of osteoarthritis (OA) correlates with a rise in the number of senescent cells in joint tissues, and the senescence-associated secretory phenotype (SASP) has been implicated in cartilage degradation and OA. Age-related mitochondrial dysfunction and associated oxidative stress might induce senescence in joint tissue cells. However, senescence is not the only driver of OA, and the mechanisms by which senescent cells contribute to disease progression are not fully understood. Furthermore, it remains uncertain which joint cells and SASP-factors contribute to the OA phenotype. Research in the field has looked at developing therapeutics (namely senolytics and senomorphics) that eliminate or alter senescent cells to stop disease progression and pathogenesis. A better understanding of how senescence contributes to joint dysfunction may enhance the effectiveness of these approaches and provide relief for patients with OA.
Collapse
Affiliation(s)
- Philip R Coryell
- Division of Rheumatology, Allergy, and Immunology, Thurston Arthritis Research Center, University of North Carolina School of Medicine, Chapel Hill, NC, USA
| | - Brian O Diekman
- Division of Rheumatology, Allergy, and Immunology, Thurston Arthritis Research Center, University of North Carolina School of Medicine, Chapel Hill, NC, USA
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, NC, USA
| | - Richard F Loeser
- Division of Rheumatology, Allergy, and Immunology, Thurston Arthritis Research Center, University of North Carolina School of Medicine, Chapel Hill, NC, USA.
| |
Collapse
|
100
|
Fernández-Rodríguez JA, Almonte-Becerril M, Ramil-Gómez O, Hermida-Carballo L, Viñas-Diz S, Vela-Anero Á, Concha Á, Camacho-Encina M, Blanco FJ, López-Armada MJ. Autophagy Activation by Resveratrol Reduces Severity of Experimental Rheumatoid Arthritis. Mol Nutr Food Res 2021; 65:e2000377. [PMID: 33184983 DOI: 10.1002/mnfr.202000377] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 08/14/2020] [Indexed: 12/11/2022]
Abstract
SCOPE Previous work reported that dietary supplementation with resveratrol lowers synovial hyperplasia, inflammatory and oxidative damage in an antigen-induced arthritis (AIA) model. Here, it is investigated whether resveratrol can regulate the abnormal synovial proliferation by inducing autophagy and controlling the associated inflammatory response. METHODS AND RESULTS Animals treated with resveratrol 8 weeks before AIA induction show the highest significant signal for microtubule-associated protein 1 light chain 3 by confocal microscopy. Besides, resveratrol significantly reduces p62 expression, but it does not increase the signal of beclin-1. Also, active caspase-3 expression, as well as poly(ADP-ribose) polymerase, is upregulated in the AIA group, and is significantly reduced in resveratrol-treated AIA group. Resveratrol also mitigates angiopoietin-1 and vascular endothelial growth factor signals. Finally, resveratrol significantly reduces the serum levels of IL-1β, C reactive protein, and prostaglandin E2, as well as nuclear factor κB synovial tissue expression, which shows a significant correlation with p62 expression. CONCLUSION Dietary supplementation with resveratrol induces the noncanonical autophagy pathway and limits the cross-talk with inflammation, which in consequence modulates the synovial hyperplasia. Preventive strategies that incorporate dietary intervention with resveratrol may offer a potential therapeutic alternative to drugs to influence the risk of rheumatoid arthritis and influence its course.
Collapse
Affiliation(s)
- Jennifer A Fernández-Rodríguez
- Grupo de Investigación en Envejecimiento e Inflamación, SERGAS, Complexo Hospitalario Universitario A Coruña (CHUAC), Instituto de Investigación Biomédica A Coruña (INIBIC), Agrupación Estratégica CICA-INIBIC, As Xubias 84, A Coruña, 15006, Spain
| | - Maylin Almonte-Becerril
- Grupo de Investigación en Envejecimiento e Inflamación, SERGAS, Complexo Hospitalario Universitario A Coruña (CHUAC), Instituto de Investigación Biomédica A Coruña (INIBIC), Agrupación Estratégica CICA-INIBIC, As Xubias 84, A Coruña, 15006, Spain
- Universidad Intercultural Estado de Puebla, Calle Principal a Lipuntahuaca S/N, Lipuntahuaca, Puebla, 73475, México
| | - Olalla Ramil-Gómez
- Grupo de Investigación en Envejecimiento e Inflamación, SERGAS, Complexo Hospitalario Universitario A Coruña (CHUAC), Instituto de Investigación Biomédica A Coruña (INIBIC), Agrupación Estratégica CICA-INIBIC, As Xubias 84, A Coruña, 15006, Spain
| | - Laura Hermida-Carballo
- Grupo de Investigación en Envejecimiento e Inflamación, SERGAS, Complexo Hospitalario Universitario A Coruña (CHUAC), Instituto de Investigación Biomédica A Coruña (INIBIC), Agrupación Estratégica CICA-INIBIC, As Xubias 84, A Coruña, 15006, Spain
| | - Susana Viñas-Diz
- Grupo de Investigación en Envejecimiento e Inflamación, SERGAS, Complexo Hospitalario Universitario A Coruña (CHUAC), Instituto de Investigación Biomédica A Coruña (INIBIC), Agrupación Estratégica CICA-INIBIC, As Xubias 84, A Coruña, 15006, Spain
- Departamento de Ciencias Biomédicas, Medicina y Fisioterapia, Universidade da Coruña (UDC), Campus de Oza, A Coruña, 15006, Spain
| | - Ángela Vela-Anero
- Grupo de Terapia Celular e Medicina Regenerativa, UDC, Campus de Oza, A Coruña, 15006, Spain
| | - Ángel Concha
- Servicio de Patología, INIBIC, SERGAS, As Xubias 84, A Coruña, 15006, Spain
| | - María Camacho-Encina
- Grupo de Investigación en Reumatología, Agrupación Estratégica CICA-INIBIC, SERGAS, As Xubias, 84, A Coruña, 15006, Spain
| | - Francisco J Blanco
- Grupo de Investigación en Reumatología, Agrupación Estratégica CICA-INIBIC, SERGAS, As Xubias, 84, A Coruña, 15006, Spain
| | - María J López-Armada
- Grupo de Investigación en Envejecimiento e Inflamación, SERGAS, Complexo Hospitalario Universitario A Coruña (CHUAC), Instituto de Investigación Biomédica A Coruña (INIBIC), Agrupación Estratégica CICA-INIBIC, As Xubias 84, A Coruña, 15006, Spain
| |
Collapse
|