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Wang H, Wang W, Xue Z, Gong H. SIRT3 MEDIATES THE CARDIOPROTECTIVE EFFECT OF THERAPEUTIC HYPOTHERMIA AFTER CARDIAC ARREST AND RESUSCITATION BY RESTORING AUTOPHAGIC FLUX VIA THE PI3K/AKT/MTOR PATHWAY. Shock 2024; 62:127-138. [PMID: 38526135 DOI: 10.1097/shk.0000000000002366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/26/2024]
Abstract
ABSTRACT Background : Postresuscitation cardiac dysfunction is a significant contributor to early death following cardiopulmonary resuscitation (CPR). Therapeutic hypothermia (TH) mitigates myocardial dysfunction due to cardiac arrest (CA); however, the underlying mechanism remains unclear. Sirtuin 3 (Sirt3) was found to affect autophagic activity in recent research, motivating us to investigate its role in the cardioprotective effects of TH in the treatment of CA. Methods : Sprague-Dawley rats were used to establish an in vivo CA/CPR model and treated with a selective Sirt3 inhibitor or vehicle. Survival rate, myocardial function, autophagic flux, and Sirt3 expression and activity were evaluated. H9C2 cells were subjected to oxygen-glucose deprivation/reoxygenation (OGD/R) injury in vitro . The cells were transfected with Sirt3-siRNA and treated with the autophagy inhibitor chloroquine or the PI3K inhibitor LY294002, and cell viability and autophagic flux were assessed. Results : Rats exhibited decreased survival and impaired cardiac function after CA/CPR, which were alleviated by TH. Mechanistically, TH restored Sirt3 expression and autophagic flux, which were impaired by CA/CPR. Sirt3 inactivation diminished the capacity of TH to restore autophagic flux and partially abolished the improvements in myocardial function and survival. An in vitro study further showed that TH-induced restoration of disrupted autophagic flux by OGD/R was attenuated by pretreatment with Sirt3-siRNA, and this attenuation was partially rescued by the inhibition of PI3K/Akt/mTOR signaling cascades. Conclusions : Sirt3 mediates the cardioprotective effect of TH by restoring autophagic flux via the PI3K/Akt/mTOR pathway. These findings suggest the potential of Sirt3 as a therapeutic target for CA.
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Affiliation(s)
- Hui Wang
- Department of Geriatric Medicine, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Wenwen Wang
- Department of Emergency, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Zhiwei Xue
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, China
| | - Huiping Gong
- Department of Emergency, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
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Xi S, Chen W, Ke Y. Advances in SIRT3 involvement in regulating autophagy-related mechanisms. Cell Div 2024; 19:20. [PMID: 38867228 PMCID: PMC11170824 DOI: 10.1186/s13008-024-00124-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Accepted: 06/06/2024] [Indexed: 06/14/2024] Open
Abstract
The silencing regulatory factor 2-like protein 3 (SIRT3) is a nicotinamide adenine dinucleotide (NAD+) dependent deacetylase located primarily in the mitochondria. This protein plays an important role in oxidative stress, energy metabolism, and autophagy in multicellular organisms. Autophagy (macroautophagy) is primarily a cytoprotective mechanism necessary for intracellular homeostasis and the synthesis, degradation, and recycling of cellular products. Autophagy can influence the progression of several neural, cardiac, hepatic, and renal diseases and can also contribute to the development of fibrosis, diabetes, and many types of cancer. Recent studies have shown that SIRT3 has an important role in regulating autophagy. Therefore in this study, we aimed to perform a literature review to summarize the role of SIRT3 in the regulation of cellular autophagy. The findings of this study could be used to identify new drug targets for SIRT3-related diseases. Methods: A comprehensive literature review of the mechanism involved behind SIRT3 and autophagy-related diseases was performed. Relevant literature published in Pubmed and Web of Science up to July 2023 was identified using the keywords "silencing regulatory factor 2-like protein 3", "SIRT3" and "autophagy".
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Affiliation(s)
- Shuangyun Xi
- Center of Forensic Expertise, Affiliated hospital of Zunyi Medical University, Zunyi, 563000, Guizhou, China
- School of Forensic Medicine, Zunyi Medical University, Zunyi, 563000, Guizhou, China
| | - Weijun Chen
- Center of Forensic Expertise, Affiliated hospital of Zunyi Medical University, Zunyi, 563000, Guizhou, China
- School of Forensic Medicine, Zunyi Medical University, Zunyi, 563000, Guizhou, China
| | - Yong Ke
- Center of Forensic Expertise, Affiliated hospital of Zunyi Medical University, Zunyi, 563000, Guizhou, China.
- School of Forensic Medicine, Zunyi Medical University, Zunyi, 563000, Guizhou, China.
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Quan C, Zhou S, Zhang Y, Kulyar MFEA, Gong S, Nawaz S, Ahmed AE, Mo Q, Li J. The autophagy-mediated mechanism via TSC1/mTOR signaling pathway in thiram-induced tibial dyschondroplasia of broilers. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 928:172305. [PMID: 38593872 DOI: 10.1016/j.scitotenv.2024.172305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 04/03/2024] [Accepted: 04/05/2024] [Indexed: 04/11/2024]
Abstract
Thiram is a member of the dithiocarbamate family and is widely used in agriculture, especially in low-income countries. Its residues lead to various diseases, among which tibial dyschondroplasia (TD) in broiler chickens is the most common. Recent studies have also demonstrated that thiram residues may harm human health. Our previous study showed that the activity of the mTOR (mammalian target of rapamycin) signaling pathway has changed after thiram exposure. In the current study, we investigated the effect of autophagy via the mTOR signaling pathway after thiram exposure in vitro and in vivo. Our results showed that thiram inhibited the protein expression of mTOR signaling pathway-related genes such as p-4EBP1 and p-S6K1. The analysis showed a significant increase in the expression of key autophagy-related proteins, including LC3, ULK1, ATG5, and Beclin1. Further investigation proved that the effects of thiram were mediated through the downregulation of mTOR. The mTOR agonist MHY-1485 reverse the upregulation of autophagy caused by thiram in vitro. Moreover, our experiment using knockdown of TSC1 resulted in chondrocytes expressing lower levels of autophagy. In conclusion, our results demonstrate that thiram promotes autophagy via the mTOR signaling pathway in chondrogenesis, providing a potential pharmacological target for the prevention of TD.
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Affiliation(s)
- Chuxian Quan
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, P.R. China
| | - Shimeng Zhou
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, P.R. China
| | - Yan Zhang
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, P.R. China
| | | | - Saisai Gong
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, P.R. China
| | - Shah Nawaz
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, P.R. China
| | - Ahmed Ezzat Ahmed
- Department of Biology, College of Science, King Khalid University, Abha 61413, Saudi Arabia
| | - Quan Mo
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, P.R. China.
| | - Jiakui Li
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, P.R. China.
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Zhang H, Gu W, Wu G, Yu Y. Aging and Autophagy: Roles in Musculoskeletal System Injury. Aging Dis 2024:AD.2024.0362. [PMID: 38913046 DOI: 10.14336/ad.2024.0362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Accepted: 06/03/2024] [Indexed: 06/25/2024] Open
Abstract
Aging is a multifactorial process that ultimately leads to a decline in physiological function and a consequent reduction in the health span, and quality of life in elderly population. In musculoskeletal diseases, aging is often associated with a gradual loss of skeletal muscle mass and strength, resulting in reduced functional capacity and an increased risk of chronic metabolic diseases, leading to impaired function and increased mortality. Autophagy is a highly conserved physiological process by which cells, under the regulation of autophagy-related genes, degrade their own organelles and large molecules by lysosomal degradation. This process is unique to eukaryotic cells and is a strict regulator of homeostasis, the maintenance of energy and substance balance. Autophagy plays an important role in a wide range of physiological and pathological processes such as cell homeostasis, aging, immunity, tumorigenesis and neurodegenerative diseases. On the one hand, under mild stress conditions, autophagy mediates the restoration of homeostasis and proliferation, reduction of the rate of aging and delay of the aging process. On the other hand, under more intense stress conditions, an inadequate suppression of autophagy can lead to cellular aging. Conversely, autophagy activity decreases during aging. Due to the interrelationship between aging and autophagy, limited literature exists on this topic. Therefore, the objective of this review is to summarize the current concepts on aging and autophagy in the musculoskeletal system. The aim is to better understand the mechanisms of age-related changes in bone, joint and muscle, as well as the interaction relationship between autophagy and aging. Its goal is to provide a comprehensive perspective for the improvement of diseases of the musculoskeletal system.
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Affiliation(s)
- Haifeng Zhang
- Department of Orthopedics Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wenhui Gu
- Department of Physiology and Hypoxic Biomedicine, Institute of Special Environmental Medicine, Nantong University, Nantong, Jiangsu, China
| | - Genbin Wu
- Department of Orthopedics Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yinxian Yu
- Department of Orthopedics Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Li Y, Zhao J, Guo S, He D. siRNA therapy in osteoarthritis: targeting cellular pathways for advanced treatment approaches. Front Immunol 2024; 15:1382689. [PMID: 38895116 PMCID: PMC11184127 DOI: 10.3389/fimmu.2024.1382689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Accepted: 05/17/2024] [Indexed: 06/21/2024] Open
Abstract
Osteoarthritis (OA) is a common joint disorder characterized by the degeneration of cartilage and inflammation, affecting millions worldwide. The disease's complex pathogenesis involves various cell types, such as chondrocytes, synovial cells, osteoblasts, and immune cells, contributing to the intricate interplay of factors leading to tissue degradation and pain. RNA interference (RNAi) therapy, particularly through the use of small interfering RNA (siRNA), emerges as a promising avenue for OA treatment due to its capacity for specific gene silencing. siRNA molecules can modulate post-transcriptional gene expression, targeting key pathways involved in cellular proliferation, apoptosis, senescence, autophagy, biomolecule secretion, inflammation, and bone remodeling. This review delves into the mechanisms by which siRNA targets various cell populations within the OA milieu, offering a comprehensive overview of the potential therapeutic benefits and challenges in clinical application. By summarizing the current advancements in siRNA delivery systems and therapeutic targets, we provide a solid theoretical foundation for the future development of novel siRNA-based strategies for OA diagnosis and treatment, paving the way for innovative and more effective approaches to managing this debilitating disease.
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Affiliation(s)
- Yunshen Li
- Department of Rheumatology, Shanghai Guanghua Hospital of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Guanghua Clinical Medical College, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Institute of Arthritis Research in Integrative Medicine, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
| | - Jianan Zhao
- Department of Rheumatology, Shanghai Guanghua Hospital of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Guanghua Clinical Medical College, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Institute of Arthritis Research in Integrative Medicine, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
| | - Shicheng Guo
- Department of Rheumatology, Shanghai Guanghua Hospital of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Dongyi He
- Department of Rheumatology, Shanghai Guanghua Hospital of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Guanghua Clinical Medical College, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Institute of Arthritis Research in Integrative Medicine, Shanghai Academy of Traditional Chinese Medicine, Shanghai, China
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Li J, Guan M, Qi L, Zhang F, Jia C, Meng Q, Han J. Metalloproteins as risk factors for osteoarthritis: improving and understanding causal estimates using Mendelian randomization. Clin Rheumatol 2024; 43:2079-2091. [PMID: 38720162 PMCID: PMC11111566 DOI: 10.1007/s10067-024-06968-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 10/09/2023] [Accepted: 04/14/2024] [Indexed: 05/24/2024]
Abstract
Osteoarthritis (OA) is one of the most prevalent musculoskeletal disorders and a primary cause of pain and disability among the elderly population. Research on the relationship between metalloproteins (MPs) and OA is limited, and causality remains unclear. Our objective is to utilize Mendelian randomization (MR) to explore the possible causal relationship between MPs and OA. The data on MPs were derived from a Genome-Wide Association Study (GWAS) analysis involving 3301 samples. The GWAS data for OA were obtained from an analysis involving 462,933 European individuals. In this study, a variety of two-sample Mendelian randomization methods (two-sample MR) to evaluate the causal effect of MPs on OA, including inverse variance weighted method (IVW), MR-Egger method, weighted median method (WM), simple mode, weight mode, and Wald ratio. The primary MR analysis using the IVW method reveals a significant negative correlation between Metallothionein-1F (MT-1F), zinc finger protein 134 (ZNF134), calcium/calmodulin-dependent protein kinase type 1D (CAMK1D), and EF-hand calcium-binding domain-containing protein 14 (EFCAB14) with the occurrence of osteoarthritis (OA) (p value < 0.05). However, no causal relationship was observed in the opposite direction between these MPs and OA. Notably, even in combined models accounting for confounding factors, the negative association between these four MPs and OA remained significant. Sensitivity analysis demonstrated no evidence of horizontal pleiotropy or heterogeneity, and leave-one-out analysis confirmed the robustness of the results. In this study, we have established a conspicuous association between four distinct MPs and OA. This discovery augments our understanding of potential avenues for the diagnosis and treatment of this condition. Key Points • The MR method was employed to assess the relationship between MPs and OA. • A total of four types of MPs have demonstrated inhibitory effects on the occurrence of OA.
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Affiliation(s)
- Jiaze Li
- Department of Orthopedics, Dalian Third People's Hospital Affiliated to Dalian Medical University, Dalian City Third People's Hospital, Dalian, 116091, Liaoning Province, China
| | - Mingyang Guan
- Department of Orthopedics, Dalian Third People's Hospital Affiliated to Dalian Medical University, Dalian City Third People's Hospital, Dalian, 116091, Liaoning Province, China
| | - Lin Qi
- Department of Orthopedics, Dalian Third People's Hospital Affiliated to Dalian Medical University, Dalian City Third People's Hospital, Dalian, 116091, Liaoning Province, China
| | - Fengping Zhang
- Department of Orthopedics, Dalian Third People's Hospital Affiliated to Dalian Medical University, Dalian City Third People's Hospital, Dalian, 116091, Liaoning Province, China
| | - Chenxu Jia
- Department of Orthopedics, Dalian Third People's Hospital Affiliated to Dalian Medical University, Dalian City Third People's Hospital, Dalian, 116091, Liaoning Province, China
| | - Qingtao Meng
- Department of Orthopedics, Dalian Third People's Hospital Affiliated to Dalian Medical University, Dalian City Third People's Hospital, Dalian, 116091, Liaoning Province, China.
| | - Jian Han
- Department of Orthopedics, Dalian Third People's Hospital Affiliated to Dalian Medical University, Dalian City Third People's Hospital, Dalian, 116091, Liaoning Province, China
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Li T, Fan L, Jia Y, Xu C, Guo W, Wang Y, Li Y. Colorectal cancer cells with stably expressed SIRT3 demonstrate proliferating retardation by Wnt/β-catenin cascade inactivation. Clin Exp Pharmacol Physiol 2024; 51:e13856. [PMID: 38621772 DOI: 10.1111/1440-1681.13856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 02/24/2024] [Accepted: 03/04/2024] [Indexed: 04/17/2024]
Abstract
Colorectal cancer (CRC) is a typical and lethal digestive system malignancy. In this study, we investigated the effect of sirtuin 3 (SIRT3) expression, a fidelity mitochondrial protein, on the proliferation of CRC cells and the mechanisms involved. Using the University of Alabama at Birmingham Cancer Data Analysis Portal database and the Clinical Proteomic Tumour Analysis Consortium database, we discovered that low expression of SIRT3 in CRC was a negative factor for survival prognosis (P < .05). Meanwhile, SIRT3 expression was correlated with distant metastasis and tumour, node, metastasis stage of CRC patients (P < .05). Subsequently, we observed that CRC cells with stable SIRT3 expression exhibited a significant decrease in proliferative capacities both in vitro and in vivo, compared to their counterparts (P < .05). Further investigation using western blot, immunoprecipitation and TOPflash/FOPflash assay showed the mechanism of growth retardation of these cells was highly associated with the degradation of β-catenin in cytosol, and the localization of β-catenin/α-catenin complex in the nucleus. In conclusion, our findings suggest that the inhibition of CRC cell proliferation by SIRT3 is closely associated with the inactivation of the Wnt/β-catenin signalling pathway.
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Affiliation(s)
- Tianyu Li
- Department of Pharmacology, School of Pharmaceutical Science, Capital Medical University, Beijing, China
| | - Leqi Fan
- Department of Pharmacology, School of Pharmaceutical Science, Capital Medical University, Beijing, China
| | - Yijiang Jia
- Department of Medicinal Chemistry, School of Pharmaceutical Science, Capital Medical University, Beijing, China
| | - Chen Xu
- Department of Pharmacology, School of Pharmaceutical Science, Capital Medical University, Beijing, China
| | - Wei Guo
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing, China
- Beijing Key Laboratory of Cancer Invasion and Metastasis Research, National Clinical Research Center for Digestive Diseases, Beijing, China
| | - Yuji Wang
- Department of Medicinal Chemistry, School of Pharmaceutical Science, Capital Medical University, Beijing, China
| | - Ye Li
- Department of Pharmacology, School of Pharmaceutical Science, Capital Medical University, Beijing, China
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Xiao J, Luo C, Li A, Cai F, Wang Y, Pan X, Xu L, Wang Z, Xing Z, Yu L, Chen Y, Tian M. Icariin inhibits chondrocyte ferroptosis and alleviates osteoarthritis by enhancing the SLC7A11/GPX4 signaling. Int Immunopharmacol 2024; 133:112010. [PMID: 38636375 DOI: 10.1016/j.intimp.2024.112010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 03/29/2024] [Accepted: 04/02/2024] [Indexed: 04/20/2024]
Abstract
BACKGROUND Chondrocyte ferroptosis plays a critical role in the pathogenesis of osteoarthritis (OA), regulated by the SLC7A11/GPX4 signaling pathway. Icariin (ICA), a flavonoid glycoside, exhibits strong anti-inflammatory and antioxidant activities. This study investigated whether ICA could modulate the SLC7A11/GPX4 signaling to inhibit chondrocyte ferroptosis and alleviate OA. PURPOSE The objective was to explore the impact of ICA on chondrocyte ferroptosis in OA and its modulation of the SLC7A11/GPX4 signaling pathway. METHODS The anti-ferroptosis effects of ICA were evaluated in an interleukin-1β (IL-1β)-treated SW1353 cell model, using Ferrostatin-1 (Fer-1) and Erastin (Era) as ferroptosis inhibitor and inducer, respectively, along with GPX4 knockdown via lentivirus-based shRNA. Additionally, the therapeutic efficacy of ICA on OA-related articular cartilage damage was assessed in rats through histopathology and immunohistochemistry (IHC). RESULTS IL-1β treatment upregulated the expression of OA-associated matrix metalloproteinases (MMP3 and MMP1), a disintegrin and metalloproteinase with thrombospondin motifs (ADAMTS-5), and increased intracellular ROS, lipid ROS, and MDA levels while downregulating collagen II and SOX9 expression in SW1353 cells. ICA treatment countered the IL-1β-induced upregulation of MMPs and ADAMTS-5, restored collagen II and SOX9 expression, and reduced intracellular ROS, lipid ROS, and MDA levels. Furthermore, IL-1β upregulated P53 but downregulated SLC7A11 and GPX4 expression in SW1353 cells, effects that were mitigated by ICA or Fer-1 treatment. Significantly, ICA also alleviated Era-induced ferroptosis, whereas it had no effect on GPX4-silenced SW1353 cells. In vivo, ICA treatment reduced articular cartilage damage in OA rats by partially restoring collagen II and GPX4 expression, inhibiting cartilage extracellular matrix (ECM) degradation and chondrocyte ferroptosis. CONCLUSION ICA treatment mitigated chondrocyte ferroptosis and articular cartilage damage by enhancing the SLC7A11/GPX4 signaling, suggesting its potential as a therapeutic agent for OA interventions.
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Affiliation(s)
- Juan Xiao
- Department of Rheumatology and Immunology, Afliated Hospital of Zunyi Medical University, Huichuan District, 149 Dalian Road, Zunyi 563000, China; Department of Nephrology and Rheumatology, Guizhou Moutai Hospital, Renhuai 564500, China
| | - Chenggen Luo
- Department of Rheumatology and Immunology, Afliated Hospital of Zunyi Medical University, Huichuan District, 149 Dalian Road, Zunyi 563000, China
| | - Anmao Li
- Department of Rheumatology and Immunology, Afliated Hospital of Zunyi Medical University, Huichuan District, 149 Dalian Road, Zunyi 563000, China
| | - Fanglan Cai
- Department of Rheumatology and Immunology, Afliated Hospital of Zunyi Medical University, Huichuan District, 149 Dalian Road, Zunyi 563000, China
| | - Yu Wang
- Department of Rheumatology and Immunology, Afliated Hospital of Zunyi Medical University, Huichuan District, 149 Dalian Road, Zunyi 563000, China
| | - Xiaoli Pan
- Department of Rheumatology and Immunology, Afliated Hospital of Zunyi Medical University, Huichuan District, 149 Dalian Road, Zunyi 563000, China
| | - Liu Xu
- Department of Rheumatology and Immunology, Peking University People's Hospital, Beijing 100044, China
| | - Zihong Wang
- Morphology Laboratory, Zunyi Medical University, Zunyi 563000, China
| | - Zhouxiong Xing
- Department of Critical Care Medicine, Affiliated Hospital of Zunyi Medical University, Zunyi 563000, China
| | - Limei Yu
- Key Laboratory of Cell Engineering in Guizhou Province, The Affiliated Hospital of Zunyi Medical University, Guizhou, Zunyi 563000, China.
| | - Yong Chen
- Department of Rheumatology and Immunology, Afliated Hospital of Zunyi Medical University, Huichuan District, 149 Dalian Road, Zunyi 563000, China.
| | - Mei Tian
- Department of Rheumatology and Immunology, Afliated Hospital of Zunyi Medical University, Huichuan District, 149 Dalian Road, Zunyi 563000, China.
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Wei F, Lin K, Ruan B, Wang C, Yang L, Wang H, Wang Y. Epigallocatechin gallate protects MC3T3-E1 cells from cadmium-induced apoptosis and dysfunction via modulating PI3K/AKT/mTOR and Nrf2/HO-1 pathways. PeerJ 2024; 12:e17488. [PMID: 38827303 PMCID: PMC11141548 DOI: 10.7717/peerj.17488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 05/09/2024] [Indexed: 06/04/2024] Open
Abstract
Epigallocatechin gallate (EGCG), an active constituent of tea, is recognized for its anticancer and anti-inflammatory properties. However, the specific mechanism by which EGCG protects osteoblasts from cadmium-induced damage remains incompletely understood. Here, the action of EGCG was investigated by exposing MC3T3-E1 osteoblasts to EGCG and CdCl2 and examining their growth, apoptosis, and differentiation. It was found that EGCG promoted the viability of cadmium-exposed MC3T3-E1 cells, mitigated apoptosis, and promoted both maturation and mineralization. Additionally, CdCl2 has been reported to inhibit both the phosphoinositide 3-kinase/protein kinase B/mammalian target of rapamycin (PI3K/AKT/mTOR) and nuclear factor erythroid 2-related factor 2/heme oxygenase-1(Nrf2/HO-1) signaling pathways. EGCG treatment attenuated cadmium-induced apoptosis in osteoblasts and restored their function by upregulating both signaling pathways. The findings provide compelling evidence for EGCG's role in attenuating cadmium-induced osteoblast apoptosis and dysfunction through activating the PI3K/AKT/mTOR and Nrf2/HO-1 pathways. This suggests the potential of using EGCG for treating cadmium-induced osteoblast dysfunction.
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Affiliation(s)
- Fanhao Wei
- Clinical Medical College, Yangzhou University, Yangzhou, China
- Northern Jiangsu People’s Hospital Affiliated to Yangzhou University, Yangzhou, China
| | - Kai Lin
- Nanjing University Medical School, Nanjing, China
| | - Binjia Ruan
- Nanjing University Medical School, Nanjing, China
| | | | - Lixun Yang
- Clinical Medical College, Yangzhou University, Yangzhou, China
- Northern Jiangsu People’s Hospital Affiliated to Yangzhou University, Yangzhou, China
| | - Hongwei Wang
- Nanjing University Medical School, Nanjing, China
| | - Yongxiang Wang
- Clinical Medical College, Yangzhou University, Yangzhou, China
- Northern Jiangsu People’s Hospital Affiliated to Yangzhou University, Yangzhou, China
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Lee YT, Mohd Yunus MH, Yazid MD, Ugusman A. Unraveling the path to osteoarthritis management: targeting chondrocyte apoptosis for therapeutic intervention. Front Cell Dev Biol 2024; 12:1347126. [PMID: 38827524 PMCID: PMC11140145 DOI: 10.3389/fcell.2024.1347126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 05/06/2024] [Indexed: 06/04/2024] Open
Abstract
Osteoarthritis (OA) is a chronic disease affecting joints and further causing disabilities. This disease affects around 240 million people worldwide. It is a multifactorial disease, and its etiology is difficult to determine. Although numerous therapeutic strategies are available, the therapies are aimed at reducing pain and improving patients' quality of life. Hence, there is an urgent need to develop disease-modifying drugs (DMOAD) that can reverse or halt OA progression. Apoptosis is a cell removal process that is important in maintaining homeostatic mechanisms in the development and sustaining cell population. The apoptosis of chondrocytes is believed to play an important role in OA progression due to poor chondrocytes self-repair abilities to maintain the extracellular matrix (ECM). Hence, targeting chondrocyte apoptosis can be one of the potential therapeutic strategies in OA management. There are various mediators and targets available to inhibit apoptosis such as autophagy, endoplasmic reticulum (ER) stress, oxidative stress, and inflammation. As such, this review highlights the importance and potential targets that can be aimed to reduce chondrocyte apoptosis.
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Affiliation(s)
- Yi Ting Lee
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, Malaysia
| | - Mohd Heikal Mohd Yunus
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, Malaysia
| | - Muhammad Dain Yazid
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, Malaysia
| | - Azizah Ugusman
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, Malaysia
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Li X, Xiao Y, Li P, Zhu Y, Guo Y, Bian H, Li Z. Sialyltransferase ST3GAL6 silencing reduces α2,3-sialylated glycans to regulate autophagy by decreasing HSPB8-BAG3 in the brain with hepatic encephalopathy. J Zhejiang Univ Sci B 2024; 25:485-498. [PMID: 38910494 PMCID: PMC11199091 DOI: 10.1631/jzus.b2300917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Accepted: 02/20/2024] [Indexed: 05/23/2024]
Abstract
End-stage liver diseases, such as cirrhosis and liver cancer caused by hepatitis B, are often combined with hepatic encephalopathy (HE); ammonia poisoning is posited as one of its main pathogenesis mechanisms. Ammonia is closely related to autophagy, but the molecular mechanism of ammonia's regulatory effect on autophagy in HE remains unclear. Sialylation is an essential form of glycosylation. In the nervous system, abnormal sialylation affects various physiological processes, such as neural development and synapse formation. ST3 β-galactoside α2,3-sialyltransferase 6 (ST3GAL6) is one of the significant glycosyltransferases responsible for adding α2,3-linked sialic acid to substrates and generating glycan structures. We found that the expression of ST3GAL6 was upregulated in the brains of mice with HE and in astrocytes after ammonia induction, and the expression levels of α2,3-sialylated glycans and autophagy-related proteins microtubule-associated protein light chain 3 (LC3) and Beclin-1 were upregulated in ammonia-induced astrocytes. These findings suggest that ST3GAL6 is related to autophagy in HE. Therefore, we aimed to determine the regulatory relationship between ST3GAL6 and autophagy. We found that silencing ST3GAL6 and blocking or degrading α2,3-sialylated glycans by way of Maackia amurensis lectin-II (MAL-II) and neuraminidase can inhibit autophagy. In addition, silencing the expression of ST3GAL6 can downregulate the expression of heat shock protein β8 (HSPB8) and Bcl2-associated athanogene 3 (BAG3). Notably, the overexpression of HSPB8 partially restored the reduced autophagy levels caused by silencing ST3GAL6 expression. Our results indicate that ST3GAL6 regulates autophagy through the HSPB8-BAG3 complex.
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Affiliation(s)
- Xiaocheng Li
- Laboratory for Functional Glycomics, College of Life Sciences, Northwest University, Xi'an 710069, China
| | - Yaqing Xiao
- Laboratory for Functional Glycomics, College of Life Sciences, Northwest University, Xi'an 710069, China
| | - Pengfei Li
- Medical Experiment Center, Shaanxi University of Chinese Medicine, Xianyang 712046, China
| | - Yayun Zhu
- Laboratory for Functional Glycomics, College of Life Sciences, Northwest University, Xi'an 710069, China
| | - Yonghong Guo
- The Infectious Disease Department, Gongli Hospital, Pudong New Area, Shanghai 200135, China. ,
| | - Huijie Bian
- National Translational Science Center for Molecular Medicine, Department of Cell Biology, Fourth Military Medical University, Xi'an 710032, China. ,
| | - Zheng Li
- Laboratory for Functional Glycomics, College of Life Sciences, Northwest University, Xi'an 710069, China.
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12
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Jia S, Liang R, Chen J, Liao S, Lin J, Li W. Emerging technology has a brilliant future: the CRISPR-Cas system for senescence, inflammation, and cartilage repair in osteoarthritis. Cell Mol Biol Lett 2024; 29:64. [PMID: 38698311 PMCID: PMC11067114 DOI: 10.1186/s11658-024-00581-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Accepted: 04/19/2024] [Indexed: 05/05/2024] Open
Abstract
Osteoarthritis (OA), known as one of the most common types of aseptic inflammation of the musculoskeletal system, is characterized by chronic pain and whole-joint lesions. With cellular and molecular changes including senescence, inflammatory alterations, and subsequent cartilage defects, OA eventually leads to a series of adverse outcomes such as pain and disability. CRISPR-Cas-related technology has been proposed and explored as a gene therapy, offering potential gene-editing tools that are in the spotlight. Considering the genetic and multigene regulatory mechanisms of OA, we systematically review current studies on CRISPR-Cas technology for improving OA in terms of senescence, inflammation, and cartilage damage and summarize various strategies for delivering CRISPR products, hoping to provide a new perspective for the treatment of OA by taking advantage of CRISPR technology.
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Affiliation(s)
- Shicheng Jia
- Department of Sports Medicine and Rehabilitation, Peking University Shenzhen Hospital, Shenzhen, 518036, China
- Shantou University Medical College, Shantou, 515041, China
| | - Rongji Liang
- Shantou University Medical College, Shantou, 515041, China
| | - Jiayou Chen
- Department of Sports Medicine and Rehabilitation, Peking University Shenzhen Hospital, Shenzhen, 518036, China
- Shantou University Medical College, Shantou, 515041, China
| | - Shuai Liao
- Department of Bone and Joint, Peking University Shenzhen Hospital, Shenzhen, 518036, China
- Shenzhen University School of Medicine, Shenzhen, 518060, China
| | - Jianjing Lin
- Department of Sports Medicine and Rehabilitation, Peking University Shenzhen Hospital, Shenzhen, 518036, China.
| | - Wei Li
- Department of Sports Medicine and Rehabilitation, Peking University Shenzhen Hospital, Shenzhen, 518036, China.
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13
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Chen M, Tan J, Jin Z, Jiang T, Wu J, Yu X. Research progress on Sirtuins (SIRTs) family modulators. Biomed Pharmacother 2024; 174:116481. [PMID: 38522239 DOI: 10.1016/j.biopha.2024.116481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 03/15/2024] [Accepted: 03/19/2024] [Indexed: 03/26/2024] Open
Abstract
Sirtuins (SIRTs) represent a class of nicotinamide adenine dinucleotide (NAD+)-dependent protein deacetylases that exert a crucial role in cellular signal transduction and various biological processes. The mammalian sirtuins family encompasses SIRT1 to SIRT7, exhibiting therapeutic potential in counteracting cellular aging, modulating metabolism, responding to oxidative stress, inhibiting tumors, and improving cellular microenvironment. These enzymes are intricately linked to the occurrence and treatment of diverse pathological conditions, including cancer, autoimmune diseases, and cardiovascular disorders. Given the significance of histone modification in gene expression and chromatin structure, maintaining the equilibrium of the sirtuins family is imperative for disease prevention and health restoration. Mounting evidence suggests that modulators of SIRTs play a crucial role in treating various diseases and maintaining physiological balance. This review delves into the molecular structure and regulatory functions of the sirtuins family, reviews the classification and historical evolution of SIRTs modulators, offers a systematic overview of existing SIRTs modulation strategies, and elucidates the regulatory mechanisms of SIRTs modulators (agonists and inhibitors) and their clinical applications. The article concludes by summarizing the challenges encountered in SIRTs modulator research and offering insights into future research directions.
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Affiliation(s)
- Mingkai Chen
- Wujin Hospital Affiliated with Jiangsu University, Changzhou, Jiangsu, China; School of Medicine Jiangsu University, Zhenjiang, Jiangsu, China
| | - Junfei Tan
- School of Medicine Jiangsu University, Zhenjiang, Jiangsu, China
| | - Zihan Jin
- Changzhou Second People's Hospital Affiliated to Nanjing Medical University, Changzhou City, China
| | - Tingting Jiang
- Wujin Hospital Affiliated with Jiangsu University, Changzhou, Jiangsu, China
| | - Jiabiao Wu
- Wujin Hospital Affiliated with Jiangsu University, Changzhou, Jiangsu, China
| | - Xiaolong Yu
- Wujin Hospital Affiliated with Jiangsu University, Changzhou, Jiangsu, China; The Wujin Clinical College of Xuzhou Medical University, Changzhou, Jiangsu, China.
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Gao W, Liu R, Huang K, Fu W, Wang A, Du G, Tang H, Yin L, Yin ZS. CHMP5 attenuates osteoarthritis via inhibiting chondrocyte apoptosis and extracellular matrix degradation: involvement of NF-κB pathway. Mol Med 2024; 30:55. [PMID: 38664616 PMCID: PMC11046779 DOI: 10.1186/s10020-024-00819-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 04/11/2024] [Indexed: 04/28/2024] Open
Abstract
BACKGROUND Osteoarthritis (OA), the most common joint disease, is linked with chondrocyte apoptosis and extracellular matrix (ECM) degradation. Charged multivesicular body protein 5 (CHMP5), a member of the multivesicular body, has been reported to serve as an anti-apoptotic protein to participate in leukemia development. However, the effects of CHMP5 on apoptosis and ECM degradation in OA remain unclear. METHODS In this study, quantitative proteomics was performed to analyze differential proteins between normal and OA patient articular cartilages. The OA mouse model was constructed by the destabilization of the medial meniscus (DMM). In vitro, interleukin-1 beta (IL-1β) was used to induce OA in human chondrocytes. CHMP5 overexpression and silencing vectors were created using an adenovirus system. The effects of CHMP5 on IL-1β-induced chondrocyte apoptosis were investigated by CCK-8, flow cytometry, and western blot. The effects on ECM degradation were examined by western blot and immunofluorescence. The potential mechanism was explored by western blot and Co-IP assays. RESULTS Downregulated CHMP5 was identified by proteomics in OA patient cartilages, which was verified in human and mouse articular cartilages. CHMP5 overexpression repressed cell apoptosis and ECM degradation in OA chondrocytes. However, silencing CHMP5 exacerbated OA chondrocyte apoptosis and ECM degradation. Furthermore, we found that the protective effect of CHMP5 against OA was involved in nuclear factor kappa B (NF-κB) signaling pathway. CONCLUSIONS This study demonstrated that CHMP5 repressed IL-1β-induced chondrocyte apoptosis and ECM degradation and blocked NF-κB activation. It was shown that CHMP5 might be a novel potential therapeutic target for OA in the future.
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Affiliation(s)
- Weilu Gao
- Department of Orthopedics, The First Affiliated Hospital of Anhui Medical University, No. 218, Jixi Road, Hefei, Anhui, China
| | - Rui Liu
- Department of Orthopedics, The First Affiliated Hospital of Anhui Medical University, No. 218, Jixi Road, Hefei, Anhui, China
- Department of Orthopedics, Wan Bei General Hospital of Wanbei Coal power Group, Suzhou, Anhui, China
| | - Keke Huang
- Department of Orthopedics, The First Affiliated Hospital of Anhui Medical University, No. 218, Jixi Road, Hefei, Anhui, China
| | - Wenhan Fu
- Department of Orthopedics, The First Affiliated Hospital of Anhui Medical University, No. 218, Jixi Road, Hefei, Anhui, China
| | - Anquan Wang
- Department of Orthopedics, The First Affiliated Hospital of Anhui Medical University, No. 218, Jixi Road, Hefei, Anhui, China
| | - Gongwen Du
- Department of Orthopedics, The First Affiliated Hospital of Anhui Medical University, No. 218, Jixi Road, Hefei, Anhui, China
| | - Hao Tang
- Department of Orthopedics, The First Affiliated Hospital of Anhui Medical University, No. 218, Jixi Road, Hefei, Anhui, China
| | - Li Yin
- Department of Orthopedics, The First Affiliated Hospital of Anhui Medical University, No. 218, Jixi Road, Hefei, Anhui, China
| | - Zongsheng S Yin
- Department of Orthopedics, The First Affiliated Hospital of Anhui Medical University, No. 218, Jixi Road, Hefei, Anhui, China.
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Fang Z, Wang C, Zhu J, Gou Y. Iron overload promotes hemochromatosis-associated osteoarthritis via the mTORC1-p70S6K/4E-BP1 pathway. Int Immunopharmacol 2024; 131:111848. [PMID: 38479156 DOI: 10.1016/j.intimp.2024.111848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Revised: 02/23/2024] [Accepted: 03/09/2024] [Indexed: 04/10/2024]
Abstract
BACKGROUNDS Joint iron overload in hemochromatosis induces M1 polarization in synovial macrophages, releasing pro-inflammatory factors and leading to osteoarthritis development. However, the mechanism by which iron overload regulates M1 polarization remains unclear. This study aims to elucidate the mechanism by which synovial iron overload promotes macrophage M1 polarization. METHODS In vitro, RAW264.7 macrophages were treated with iron and divided into five groups based on the concentration of the iron chelator, desferrioxamine (DFO): Ctrl, Fe, DFO1, DFO2, and DFO3. In vivo, rats were categorized into five groups based on iron overload and intra-articular DFO injection: A-Ctrl, A-Fe, A-DFO1, A-DFO2, and A-DFO3. Osteoarthritis was induced by transecting the left knee anterior cruciate ligament. Macrophage morphology was observed; Prussian Blue staining quantified iron deposition in macrophages, synovium, and liver; serum iron concentration was measured using the ferrozine method; cartilage damage was assessed using H&E and Safranin O-Fast Green staining; qPCR detected iNOS and Arg-1 expression; Western Blot analyzed the protein expression of iNOS, Arg-1, 4E-BP1, phosphorylated 4E-BP1, p70S6K, and phosphorylated p70S6K; ELISA measured TNF-α and IL-6 concentrations in supernatants; and immunohistochemistry examined the protein expression of F4/80, iNOS, Arg-1, 4E-BP1, phosphorylated 4E-BP1, p70S6K, and phosphorylated p70S6K in the synovium. RESULTS In vitro, iron-treated macrophages exhibited Prussian Blue staining indicative of iron overload and morphological changes towards M1 polarization. qPCR and Western Blot revealed increased expression of the M1 polarization markers iNOS and its protein. ELISA showed elevated TNF-α and IL-6 levels in supernatants. In vivo, ferrozine assay indicated significantly increased serum iron concentrations in all groups except A-Ctrl; Prussian Blue staining showed increased liver iron deposition in all groups except A-Ctrl. Iron deposition in rat synovium decreased in a DFO concentration-dependent manner; immunohistochemistry showed a corresponding decrease in iNOS and phosphorylated 4E-BP1 expression, and an increase in Arg-1 expression. CONCLUSION Intracellular iron overload may exacerbate joint cartilage damage by promoting synovial macrophage M1 polarization through phosphorylation of 4E-BP1 in the mTORC1-p70S6K/4E-BP1 pathway.
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Affiliation(s)
- Zhiyuan Fang
- Department of Orthopaedic Surgery, The Third Affiliated Hospital of Xinjiang Medical University, Xinjiang Medical University, Urumqi 830000, China.
| | - Chengwei Wang
- Department of Orthopaedic Surgery, The Third Affiliated Hospital of Xinjiang Medical University, Xinjiang Medical University, Urumqi 830000, China.
| | - Jiang Zhu
- General Surgery department, Prevention and Treatment of High Incidence Diseases in Central Asia, Clinical Medicine Institute, First Teaching Hospital of Xinjiang Medical University, Urumqi 830011, China.
| | - Yangyang Gou
- The Sixth Affiliated Hospital of Xinjiang Medical University, Xinjiang Medical University, Urumqi 830000, China.
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16
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Li Z, Xie L, Zou L, Xiao S, Tao J. Overexpression of RAD54L attenuates osteoarthritis by suppressing the HIF-1α/VEGF signaling pathway: Bioinformatics analysis and experimental validation. PLoS One 2024; 19:e0298575. [PMID: 38593124 PMCID: PMC11003635 DOI: 10.1371/journal.pone.0298575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 01/28/2024] [Indexed: 04/11/2024] Open
Abstract
Osteoarthritis (OA) is a widespread chronic, progressive, degenerative joint disease that causes pain and disability. Current treatments for OA have limited effectiveness and new biomarkers need to be identified. Bioinformatics analysis was conducted to explore differentially expressed genes and DNA repair/recombination protein 54 L (RAD54L) was selected. We firstly overexpressed RAD54L in interleukin-1β (IL-1β)-induced human articular chondrocytes or in OA rats to investigate its effect on OA. Chondrocyte viability and apoptotic rate were measured by Cell Counting Kit-8 and flow cytometry, respectively. Then we evaluated OA severity in vivo by Hematoxylin-eosin staining and Osteoarthritis Research Society International standards. The expression of inflammatory mediators was tested by enzyme-linked immunosorbent assay. Finally, western blot was performed to determine the relative expression level of hypoxia-inducible factors 1α (HIF-1α) and vascular endothelial growth factor (VEGF). Overexpression of RAD54L promoted cell viability and attenuated apoptosis in IL-1β-induced human chondrocytes. A lower Osteoarthritis Research Society International score and a remarkable alleviation of chondrocyte disordering and infiltration of inflammatory cells were found in cartilage tissues of OA rats after overexpressing RAD54L. The inflammatory response induced by OA was decreased by RAD54L overexpression in vitro and in vivo. In addition, RAD54L overexpression decreased the relative expression level of HIF-1α and VEGF. Overexpression of RAD54L could attenuate OA by suppressing the HIF-1α/VEGF signaling pathway, indicating that RAD54L may be a potential treatment target for OA.
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Affiliation(s)
- Zhengnan Li
- Department of Orthopedics, The Second Affiliated Hospital of Nanchang University, Donghu District, Nanchang City, Jiangxi Province, China
- Department of Sports Medicine, The Affiliated Ganzhou Hospital of Nanchang University (Ganzhou People’s Hospital), Zhanggong District, Ganzhou City, Jiangxi Province, China
| | - Lifeng Xie
- Department of Orthopedics, The Second Affiliated Hospital of Nanchang University, Donghu District, Nanchang City, Jiangxi Province, China
| | - Longqiang Zou
- Department of Sports Medicine, The Affiliated Ganzhou Hospital of Nanchang University (Ganzhou People’s Hospital), Zhanggong District, Ganzhou City, Jiangxi Province, China
| | - Shiliang Xiao
- Department of Sports Medicine, The Affiliated Ganzhou Hospital of Nanchang University (Ganzhou People’s Hospital), Zhanggong District, Ganzhou City, Jiangxi Province, China
| | - Jun Tao
- Department of Orthopedics, The Second Affiliated Hospital of Nanchang University, Donghu District, Nanchang City, Jiangxi Province, China
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17
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Zhou L, Wu F, Wang J, Zhao Y, Wu G, Su Y. Effects of endoplasmic reticulum stress on chondrocyte apoptosis via the PI3K/AKT signaling pathway. Tissue Cell 2024; 87:102340. [PMID: 38447334 DOI: 10.1016/j.tice.2024.102340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 02/19/2024] [Accepted: 02/23/2024] [Indexed: 03/08/2024]
Abstract
Chondrocytes undergo endoplasmic reticulum stress (ERS)-induced apoptosis under abnormal stimulation. However, the underlying molecular mechanism remains unclear. We investigated the regulatory effect of the PI3K/AKT signaling pathway on ERS and its effect on chondrocyte apoptosis. In addition, we established a unilateral anterior crossbite (UAC) model in rats to induce temporomandibular joint osteoarthritis (TMJOA). Chondrocytes were isolated from the temporomandibular joints and treated with lipopolysaccharide (LPS) in vitro. Protein expression of ERS and apoptosis markers (GRP78 and CASP12) was analyzed by immunohistochemistry and western blotting. The expression of GRP78, CASP12, p-PI3K, and p-AKT significantly increased in the UAC group. LY294002, a PI3K/AKT signaling pathway inhibitor, reduced the protein expression of GRP78, ATF4, CHOP, and CASP12, whereas 740 Y-P, an activation agent, elevated the expression of proteins GRP78, ATF4, CHOP, and CASP12. In the present study, UAC and LPS stimulation induced apoptosis of chondrocytes in the ERS pathway. Inhibition of the PI3K/AKT signaling pathway reduced ERS-induced chondrocyte apoptosis.
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Affiliation(s)
- Libo Zhou
- Heilongjiang Key Lab of Oral Biomedical Materials and Clinical Application & Experimental Center for Stomatology Engineering, Department of Stomatology, Jiamusi University Affiliated Stomatological Hospital, Jiamusi University, Jiamusi, Heilongjiang 154000, PR China
| | - Fan Wu
- Heilongjiang Key Lab of Oral Biomedical Materials and Clinical Application & Experimental Center for Stomatology Engineering, Department of Stomatology, Jiamusi University Affiliated Stomatological Hospital, Jiamusi University, Jiamusi, Heilongjiang 154000, PR China
| | - Jing Wang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Oral Implants, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi 710032, PR China
| | - Yuqing Zhao
- Heilongjiang Key Lab of Oral Biomedical Materials and Clinical Application & Experimental Center for Stomatology Engineering, Department of Stomatology, Jiamusi University Affiliated Stomatological Hospital, Jiamusi University, Jiamusi, Heilongjiang 154000, PR China
| | - Gaoyi Wu
- Heilongjiang Key Lab of Oral Biomedical Materials and Clinical Application & Experimental Center for Stomatology Engineering, Department of Stomatology, Jiamusi University Affiliated Stomatological Hospital, Jiamusi University, Jiamusi, Heilongjiang 154000, PR China.
| | - Yucheng Su
- Department of Dental Implant, Peking Union Medical College Hospital, Beijing 100032, PR China.
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18
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Zhao T, Niu D, Chen Y, Fu P. The role of mitochondrial quality control mechanisms in chondrocyte senescence. Exp Gerontol 2024; 188:112379. [PMID: 38378048 DOI: 10.1016/j.exger.2024.112379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Revised: 02/01/2024] [Accepted: 02/13/2024] [Indexed: 02/22/2024]
Abstract
Chondrocytes are the exclusive cellular constituents of articular cartilage, and their functional status governs the health of the cartilage. The primary factor contributing to the deterioration of cartilage structure and function is chondrocyte senescence. In hypoxia and hypodextrose environment, chondrocytes heavily rely on glycolysis for energy metabolism. Mitochondria, acting as the regulatory hub for chondrocyte energy metabolism, exhibit dysfunction before chondrocyte senescence, indicating their crucial involvement in the process. Previous research has suggested that molecules associated with mitochondrial quality control mechanisms can effectively restore mitochondrial function and alleviate chondrocyte senescence. However, there remains to be clarity regarding the relationship between mitochondrial quality control mechanisms and differences in efficacy among various target molecules, which pose challenges when evaluating them in chondrocytes. By conducting a comprehensive review of the existing literature on mitochondrial quality control mechanisms and chondrocyte senescence, we gain further insights into this intricate relationship while identifying promising targets that could potentially open up novel avenues for the treatment of chondrocyte senescence.
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Affiliation(s)
- Tianlei Zhao
- Naval Medical Center, Naval Medical University, Shanghai 200003, China; Department of Orthopedics, Shanghai Changzheng Hospital, Naval Medical University, Shanghai 200003, China
| | - Dawei Niu
- Department of Orthopedics, Shanghai Changzheng Hospital, Naval Medical University, Shanghai 200003, China; Department of Orthopaedics, The 971 hospital of CPLA Navy, Qingdao 266071, China
| | - Yancheng Chen
- Department of Orthopedics, Shanghai Changzheng Hospital, Naval Medical University, Shanghai 200003, China
| | - Peiliang Fu
- Department of Orthopedics, Shanghai Changzheng Hospital, Naval Medical University, Shanghai 200003, China.
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19
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Wang X, Liu Z, Deng S, Zhou J, Li X, Huang J, Chen J, Ji C, Deng Y, Hu Y. SIRT3 alleviates high glucose-induced chondrocyte injury through the promotion of autophagy and suppression of apoptosis in osteoarthritis progression. Int Immunopharmacol 2024; 130:111755. [PMID: 38408417 DOI: 10.1016/j.intimp.2024.111755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 02/16/2024] [Accepted: 02/21/2024] [Indexed: 02/28/2024]
Abstract
A growing amount of epidemiological evidence proposes diabetes mellitus (DM) to be an independent risk factor for osteoarthritis (OA). Sirtuin 3 (SIRT3), which is mainly located in mitochondria, belongs to the family of nicotinamide adenine dinucleotide (NAD+)-dependent protein deacetylases and is involved in the physiological and pathological processes of cell regulation. The aim of this study was to investigate the effects of SIRT3 on diabetic OA and underlying mechanisms in the prevention of type 2 DM (T2DM)-induced articular cartilage damage. High-fat and high-sugar diets combined with streptozotocin (STZ) injection were used for establishing an experimental T2DM rat model. The destabilization of medial meniscus (DMM) surgery was applied to induce the rat OA model. Primary rat chondrocytes were cultivated with a concentration of gradient glucose. Treatment with intra-articular injection of SIRT3 overexpression lentivirus was achieved in vivo, and intervention with SIRT3 knockdown was performed using siRNA transfection in vitro. High glucose content was found to activate inflammatory response, facilitate apoptosis, downregulate autophagy, and exacerbate mitochondrial dysfunction in a dose-dependent manner in rat chondrocytes, which can be deteriorated by SIRT3 knockdown. In addition, articular cartilage damage was found to be more severe in T2DM-OA rats than in DMM-induced OA rats, which can be mitigated by the intra-articular injection of SIRT3 overexpression lentivirus. Targeting SIRT3 is a potential therapeutic strategy for the alleviation of diabetic OA.
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Affiliation(s)
- Xuezhong Wang
- Department of Orthopedics, Renmin Hospital of Wuhan University, No. 99 Zhangzhidong Road, Wuchang District, Wuhan, 430060, China
| | - Zilin Liu
- Department of Orthopedics, Renmin Hospital of Wuhan University, No. 99 Zhangzhidong Road, Wuchang District, Wuhan, 430060, China
| | - Shuang Deng
- Department of Orthopedics, Renmin Hospital of Wuhan University, No. 99 Zhangzhidong Road, Wuchang District, Wuhan, 430060, China
| | - Jianlin Zhou
- Department of Orthopedics, Renmin Hospital of Wuhan University, No. 99 Zhangzhidong Road, Wuchang District, Wuhan, 430060, China
| | - Xuyang Li
- Department of Orthopedics, Renmin Hospital of Wuhan University, No. 99 Zhangzhidong Road, Wuchang District, Wuhan, 430060, China
| | - Jun Huang
- Department of Orthopedics, Renmin Hospital of Wuhan University, No. 99 Zhangzhidong Road, Wuchang District, Wuhan, 430060, China
| | - Junwen Chen
- Department of Orthopedics, Renmin Hospital of Wuhan University, No. 99 Zhangzhidong Road, Wuchang District, Wuhan, 430060, China
| | - Chuang Ji
- Department of Orthopedics, Renmin Hospital of Wuhan University, No. 99 Zhangzhidong Road, Wuchang District, Wuhan, 430060, China
| | - Yu Deng
- Department of Orthopedic Trauma and Microsurgery, Zhongnan Hospital of Wuhan University, No. 169 Donghu Road, Wuchang District, Wuhan, 430071, China.
| | - Yong Hu
- Department of Orthopedics, Renmin Hospital of Wuhan University, No. 99 Zhangzhidong Road, Wuchang District, Wuhan, 430060, China.
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20
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Liu L, Wang J, Liu L, Shi W, Gao H, Liu L. The dysregulated autophagy in osteoarthritis: Revisiting molecular profile. PROGRESS IN BIOPHYSICS AND MOLECULAR BIOLOGY 2024:S0079-6107(24)00034-8. [PMID: 38531488 DOI: 10.1016/j.pbiomolbio.2024.03.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 01/21/2024] [Accepted: 03/22/2024] [Indexed: 03/28/2024]
Abstract
The risk factors of osteoarthritis (OA) are different and obesity, lifestyle, inflammation, cell death mechanisms and diabetes mellitus are among them. The changes in the biological mechanisms are considered as main regulators of OA pathogenesis. The dysregulation of autophagy is observed in different human diseases. During the pathogenesis of OA, the autophagy levels (induction or inhibition) change. The supportive and pro-survival function of autophagy can retard the progression of OA. The protective autophagy prevents the cartilage degeneration. Moreover, autophagy demonstrates interactions with cell death mechanisms and through inhibition of apoptosis and necroptosis, it improves OA. The non-coding RNA molecules can regulate autophagy and through direct and indirect control of autophagy, they dually delay/increase OA pathogenesis. The mitochondrial integrity can be regulated by autophagy to alleviate OA. Furthermore, therapeutic compounds, especially phytochemicals, stimulate protective autophagy in chondrocytes to prevent cell death. The protective autophagy has ability of reducing inflammation and oxidative damage, as two key players in the pathogenesis of OA.
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Affiliation(s)
- Liang Liu
- Department of Joint Surgery, Affiliated Hospital of Qingdao University, Qingdao, Pingdu, 266000, China
| | - Jie Wang
- Department of Joint Surgery, Affiliated Hospital of Qingdao University, Qingdao, Pingdu, 266000, China
| | - Lu Liu
- Department of Internal Medicine, Tianbao Central Health Hospital, Xintai City, Shandong Province, Shandong, Xintai, 271200, China
| | - Wenling Shi
- Department of Joint Surgery, Affiliated Hospital of Qingdao University, Qingdao, Pingdu, 266000, China
| | - Huajie Gao
- Operating Room of Qingdao University Affiliated Hospital, Qingdao, Pingdu, 266000, China
| | - Lun Liu
- Department of Joint Surgery, Affiliated Hospital of Qingdao University, Qingdao, Pingdu, 266000, China.
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Luo Y, Zhou F, Wang X, Yang R, Li Y, Wu X, Ye B. Inhibition of cc chemokine receptor 10 ameliorates osteoarthritis via inhibition of the phosphoinositide-3-kinase/Akt/mammalian target of rapamycin pathway. J Orthop Surg Res 2024; 19:158. [PMID: 38429844 PMCID: PMC10908087 DOI: 10.1186/s13018-024-04642-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 02/22/2024] [Indexed: 03/03/2024] Open
Abstract
BACKGROUND Osteoarthritis (OA) is a joint disease characterized by inflammation and progressive cartilage degradation. Chondrocyte apoptosis is the most common pathological feature of OA. Interleukin-1β (IL-1β), a major inflammatory cytokine that promotes cartilage degradation in OA, often stimulates primary human chondrocytes in vitro to establish an in vitro OA model. Moreover, IL-1β is involved in OA pathogenesis by stimulating the phosphoinositide-3-kinase (PI3K)/Akt and mitogen-activated protein kinases pathways. The G-protein-coupled receptor, cc chemokine receptor 10 (CCR10), plays a vital role in the occurrence and development of various malignant tumors. However, the mechanism underlying the role of CCR10 in the pathogenesis of OA remains unclear. We aimed to evaluate the protective effect of CCR10 on IL-1β-stimulated CHON-001 cells and elucidate the underlying mechanism. METHODS The CHON-001 cells were transfected with a control small interfering RNA (siRNA) or CCR10-siRNA for 24 h, and stimulated with 10 ng/mL IL-1β for 12 h to construct an OA model in vitro. The levels of CCR10, cleaved-caspase-3, MMP-3, MMP-13, Collagen II, Aggrecan, p-PI3K, PI3K, p-Akt, Akt, phosphorylated-mammalian target of rapamycin (p-mTOR), and mTOR were detected using quantitative reverse transcription polymerase chain reaction and western blotting. Viability, cytotoxicity, and apoptosis of CHON-001 cells were assessed using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay, lactate dehydrogenase assay (LDH), and flow cytometry analysis, respectively. Inflammatory cytokines (TNF-α, IL-6, and IL-8) were assessed using enzyme-linked immunosorbent assay. RESULTS Level of CCR10 was substantially higher in the IL-1β-stimulated CHON-001 cells than that in the control group, whereas CCR10 was down-regulated in the CCR10-siRNA transfected CHON-001 cells compared to that in the control-siRNA group. Notably, CCR10 inhibition alleviated IL-1β-induced inflammatory injury in the CHON-001 cells, as verified by enhanced cell viability, inhibited LDH release, reduced apoptotic cells, and cleaved-caspase-3 expression. Meanwhile, IL-1β induced the release of tumor necrosis factor alpha, IL-6, and IL-8, increase of MMP-3 and MMP-13, and decrease of Collagen II and Aggrecan in the CHON-001 cells, which were reversed by CCR10-siRNA. However, these effects were reversed upon PI3K agonist 740Y-P treatment. Further, IL-1β-induced PI3K/Akt/mTOR signaling pathway activation was inhibited by CCR10-siRNA, which was increased by 740Y-P treatment. CONCLUSION Inhibition of CCR10 alleviates IL-1β-induced chondrocytes injury via PI3K/Akt/mTOR pathway inhibition, suggesting that CCR10 might be a promising target for novel OA therapeutic strategies.
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Affiliation(s)
- Yan Luo
- General Practice, Wuhan Puren Hospital, Wuhan, 430080, China
| | - Feng Zhou
- Nutrition Department, Wuhan Puren Hospital, Wuhan, 430080, China
| | - Xiaojing Wang
- Cardiology Department, Wuhan Puren Hospital, Wuhan, 430080, China
| | - Runwei Yang
- Rheumatology Immunology Department, Wuhan Puren Hospital, Wuhan, 430080, China
| | - Yi Li
- General Practice, Wuhan Puren Hospital, Wuhan, 430080, China
| | - Xiaochun Wu
- Orthopedics Department, Wuhan Huangpi People's Hospital, Wuhan, 430300, China
| | - Bin Ye
- Orthopedics Department, Wuhan No. 9 Hospital, No. 20 Jilin Street, Wuhan, 430080, China.
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Sipos F, Műzes G. Sirtuins Affect Cancer Stem Cells via Epigenetic Regulation of Autophagy. Biomedicines 2024; 12:386. [PMID: 38397988 PMCID: PMC10886574 DOI: 10.3390/biomedicines12020386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 02/01/2024] [Accepted: 02/06/2024] [Indexed: 02/25/2024] Open
Abstract
Sirtuins (SIRTs) are stress-responsive proteins that regulate several post-translational modifications, partly by acetylation, deacetylation, and affecting DNA methylation. As a result, they significantly regulate several cellular processes. In essence, they prolong lifespan and control the occurrence of spontaneous tumor growth. Members of the SIRT family have the ability to govern embryonic, hematopoietic, and other adult stem cells in certain tissues and cell types in distinct ways. Likewise, they can have both pro-tumor and anti-tumor effects on cancer stem cells, contingent upon the specific tissue from which they originate. The impact of autophagy on cancer stem cells, which varies depending on the specific circumstances, is a very intricate phenomenon that has significant significance for clinical and therapeutic purposes. SIRTs exert an impact on the autophagy process, whereas autophagy reciprocally affects the activity of certain SIRTs. The mechanism behind this connection in cancer stem cells remains poorly understood. This review presents the latest findings that position SIRTs at the point where cancer cells and autophagy interact. Our objective is to highlight the various roles of distinct SIRTs in cancer stem cell-related functions through autophagy. This would demonstrate their significance in the genesis and recurrence of cancer and offer a more precise understanding of their treatment possibilities in relation to autophagy.
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Affiliation(s)
- Ferenc Sipos
- Immunology Division, Department of Internal Medicine and Hematology, Semmelweis University, 1088 Budapest, Hungary;
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23
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Wang M, Sun Z, Ou Y, Ge W, Yuan M, Xu B. Electroacupuncture Mediates Fat Metabolism and Autophagy via a Sirt3-Dependent Mechanism in Mice Fed High-Fat Diet. Adv Biol (Weinh) 2024; 8:e2300370. [PMID: 37840428 DOI: 10.1002/adbi.202300370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 09/02/2023] [Indexed: 10/17/2023]
Abstract
This study investigates the therapeutic potential of electroacupuncture (EA) on obesity, focusing on its influence on autophagy and energy metabolism, utilizing a high-fat diet (HFD)-induced mouse model. Treatment with EA significantly reduces body weight, fat deposition, and lipid accumulation in HFD-fed mice. Additionally, EA effectively ameliorates metabolic imbalances, reducing blood glucose levels and plasma markers of liver function. At the molecular level, EA enhances the expression of thermogenesis-associated genes in brown adipose tissue and decreases p53 expression, suggesting a decrease in apoptosis. Autophagy in white adipose tissue is inhibited by EA, as demonstrated by the suppression of key autophagy-related proteins. Further experiments highlight the critical role of Sirtuin 3 (Sirt3) in EA's anti-obesity effects. Sirt3 supplementation combined with EA results in reduced body weight, fat deposition, and lipid accumulation, along with modulations in key metabolic indicators. Moreover, EA's modulatory effect on uncoupling protein 1 (Ucp1), Peroxisome proliferator-activated receptor gamma coactivator 1-alpha (Pgc-1α), and p53 is found to be Sirt3 dependent. In conclusion, EA exerts beneficial effects against obesity through Sirt3-dependent modulation of autophagy and energy metabolism, indicating a potential therapeutic approach for obesity and related metabolic disorders.
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Affiliation(s)
- Ming Wang
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210023, China
- Department of Acupuncture and Massage, Geriatric Hospital Affiliated to Nanjing Medical University, Nanjing, Jiangsu, 210024, China
| | - Zhicheng Sun
- Department of Acupuncture and Massage, Geriatric Hospital Affiliated to Nanjing Medical University, Nanjing, Jiangsu, 210024, China
| | - Yanggang Ou
- Department of Acupuncture and Massage, Geriatric Hospital Affiliated to Nanjing Medical University, Nanjing, Jiangsu, 210024, China
| | - Wei Ge
- Department of Acupuncture and Massage, Geriatric Hospital Affiliated to Nanjing Medical University, Nanjing, Jiangsu, 210024, China
| | - Mengqian Yuan
- Department of Acupuncture Rehabilitation, Jiangsu Provincial Hospital of Traditional Chinese Medicine, Nanjing, Jiangsu, 210024, China
| | - Bin Xu
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210023, China
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24
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Zhu YJ, Huang J, Chen R, Zhang Y, He X, Duan WX, Zou YL, Sun MM, Sun HL, Cheng SM, Wang HC, Zhang H, Wu WN. Autophagy dysfunction contributes to NLRP1 inflammasome-linked depressive-like behaviors in mice. J Neuroinflammation 2024; 21:6. [PMID: 38178196 PMCID: PMC10765763 DOI: 10.1186/s12974-023-02995-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 12/13/2023] [Indexed: 01/06/2024] Open
Abstract
BACKGROUND Major depressive disorder (MDD) is a common but severe psychiatric illness characterized by depressive mood and diminished interest. Both nucleotide-binding oligomerization domain, leucine-rich repeat and pyrin domain-containing 1 (NLRP1) inflammasome and autophagy have been reported to implicate in the pathological processes of depression. However, the mechanistic interplay between NLRP1 inflammasome, autophagy, and depression is still poorly known. METHODS Animal model of depression was established by chronic social defeat stress (CSDS). Depressive-like behaviors were determined by social interaction test (SIT), sucrose preference test (SPT), open field test (OFT), forced swim test (FST), and tail-suspension test (TST). The protein expression levels of NLRP1 inflammasome complexes, pro-inflammatory cytokines, phosphorylated-phosphatidylinositol 3-kinase (p-PI3K)/PI3K, phosphorylated-AKT (p-AKT)/AKT, phosphorylated-mechanistic target of rapamycin (p-mTOR)/mTOR, brain-derived neurotrophic factor (BDNF), phosphorylated-tyrosine kinase receptor B (p-TrkB)/TrkB, Bcl-2-associated X protein (Bax)/B-cell lymphoma-2 (Bcl2) and cleaved cysteinyl aspartate-specific proteinase-3 (caspase-3) were examined by western blotting. The mRNA expression levels of pro-inflammatory cytokines were tested by quantitative real-time PCR. The interaction between proteins was detected by immunofluorescence and coimmunoprecipitation. Neuronal injury was assessed by Nissl staining. The autophagosomes were visualized by transmission electron microscopy. Nlrp1a knockdown was performed using an adeno-associated virus (AAV) vector containing Nlrp1a-shRNA-eGFP infusion. RESULTS CSDS exposure caused a bidirectional change in hippocampal autophagy function, which was activated in the initial period but impaired at the later stage. In addition, CSDS exposure increased the expression levels of hippocampal NLRP1 inflammasome complexes, pro-inflammatory cytokines, p-PI3K, p-AKT and p-mTOR in a time-dependent manner. Interestingly, NLRP1 is immunoprecipitated with mTOR but not PI3K/AKT and CSDS exposure facilitated the immunoprecipitation between them. Hippocampal Nlrp1a knockdown inhibited the activity of PI3K/AKT/mTOR signaling, rescued the impaired autophagy and ameliorated depressive-like behavior induced by CSDS. In addition, rapamycin, an autophagy inducer, abolished NLRP1 inflammasome-driven inflammatory reactions, alleviated depressive-like behavior and exerted a neuroprotective effect. CONCLUSIONS Autophagy dysfunction contributes to NLRP1 inflammasome-linked depressive-like behavior in mice and the regulation of autophagy could be a valuable therapeutic strategy for the management of depression.
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Affiliation(s)
- Ya-Jing Zhu
- Department of Pharmacology & Research Centre for Neurological Disorders, School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, People's Republic of China
| | - Jing Huang
- Department of Pharmacology & Research Centre for Neurological Disorders, School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, People's Republic of China
| | - Ru Chen
- Department of Pharmacology & Research Centre for Neurological Disorders, School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, People's Republic of China
| | - Yu Zhang
- Department of Pharmacology & Research Centre for Neurological Disorders, School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, People's Republic of China
| | - Xin He
- Department of Pharmacology & Research Centre for Neurological Disorders, School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, People's Republic of China
| | - Wen-Xin Duan
- Department of Pharmacology & Research Centre for Neurological Disorders, School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, People's Republic of China
| | - Yuan-Lei Zou
- Department of Pharmacology & Research Centre for Neurological Disorders, School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, People's Republic of China
| | - Meng-Mei Sun
- Department of Pharmacology & Research Centre for Neurological Disorders, School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, People's Republic of China
| | - Hui-Li Sun
- Department of Pharmacology & Research Centre for Neurological Disorders, School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, People's Republic of China
| | - Si-Min Cheng
- Department of Pharmacology & Research Centre for Neurological Disorders, School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, People's Republic of China
| | - Hao-Chuan Wang
- Department of Pharmacology & Research Centre for Neurological Disorders, School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, People's Republic of China
| | - Hao Zhang
- Department of Oncology, the First Affiliated Hospital of Anhui Medical University, Hefei, 230032, People's Republic of China
| | - Wen-Ning Wu
- Department of Pharmacology & Research Centre for Neurological Disorders, School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, People's Republic of China.
- Key Laboratory of Anti-Inflammatory and Immunopharmacology, Anhui Medical University, Hefei, 230032, People's Republic of China.
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Zhang Q, Siyuan Z, Xing C, Ruxiu L. SIRT3 regulates mitochondrial function: A promising star target for cardiovascular disease therapy. Biomed Pharmacother 2024; 170:116004. [PMID: 38086147 DOI: 10.1016/j.biopha.2023.116004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 12/04/2023] [Accepted: 12/06/2023] [Indexed: 01/10/2024] Open
Abstract
Dysregulation of mitochondrial homeostasis is common to all types of cardiovascular diseases. SIRT3 regulates apoptosis and autophagy, material and energy metabolism, mitochondrial oxidative stress, inflammation, and fibrosis. As an important mediator and node in the network of mechanisms, SIRT3 is essential to many activities. This review explains how SIRT3 regulates mitochondrial homeostasis and the tricarboxylic acid cycle to treat common cardiovascular diseases. A novel description of the impact of lifestyle factors on SIRT3 expression from the angles of nutrition, exercise, and temperature is provided.
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Affiliation(s)
- Qin Zhang
- Guang'anmen Hospital, Chinese Academy of traditional Chinese medicine, Beijing, China
| | - Zhou Siyuan
- Guang'anmen Hospital, Chinese Academy of traditional Chinese medicine, Beijing, China
| | - Chang Xing
- Guang'anmen Hospital, Chinese Academy of traditional Chinese medicine, Beijing, China
| | - Liu Ruxiu
- Guang'anmen Hospital, Chinese Academy of traditional Chinese medicine, Beijing, China.
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26
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Xu K, Li J, Wen R, Chang B, Cheng Y, Yi X. Role of SIRT3 in bone homeostasis and its application in preventing and treating bone diseases. Front Pharmacol 2023; 14:1248507. [PMID: 38192409 PMCID: PMC10773770 DOI: 10.3389/fphar.2023.1248507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 12/11/2023] [Indexed: 01/10/2024] Open
Abstract
Bone homeostasis refers to the balance between osteoblast-mediated bone formation and osteoclast-mediated bone resorption and the maintenance of stable bone mass. SIRT3 is a class of mitochondrial protein deacetylase that influences various mitochondrial functions and is involved in the mechanisms underlying resistance to aging; regulation of bone marrow mesenchymal stem cells, osteoblasts, and osteoclasts; and development of osteoporosis, osteoarthritis, and other bone diseases. Moreover, exercise affects bones through SIRT3. Thus, studies on SIRT3 may provide insights for the treatment of bone diseases. Although SIRT3 can exert multiple effects on bone, the specific mechanism by which it regulates bone homeostasis remains unclear. By evaluating the relevant literature, this review discusses the structure and function of SIRT3, reveals the role and associated mechanisms of SIRT3 in regulating bone homeostasis and mediating bone health during exercise, and highlights the potential pharmacological value of SIRT3 in treating bone diseases.
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Affiliation(s)
- Ke Xu
- School of Sports Health, Shenyang Sport University, Shenyang, China
| | - Jing Li
- School of Physical Education, Liaoning Normal University, Dalian, China
| | - Ruiming Wen
- School of Sports Health, Shenyang Sport University, Shenyang, China
| | - Bo Chang
- School of Sports Health, Shenyang Sport University, Shenyang, China
| | - Yang Cheng
- School of Sports Health, Shenyang Sport University, Shenyang, China
| | - Xuejie Yi
- School of Sports Health, Shenyang Sport University, Shenyang, China
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27
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Hu W, Yao X, Li Y, Li J, Zhang J, Zou Z, Kang F, Dong S. Injectable hydrogel with selenium nanoparticles delivery for sustained glutathione peroxidase activation and enhanced osteoarthritis therapeutics. Mater Today Bio 2023; 23:100864. [PMID: 38024839 PMCID: PMC10679772 DOI: 10.1016/j.mtbio.2023.100864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 10/24/2023] [Accepted: 11/10/2023] [Indexed: 12/01/2023] Open
Abstract
Reactive oxygen burst in articular chondrocytes is a major contributor to osteoarthritis progression. Although selenium is indispensable role in the antioxidant process, the narrow therapeutic window, delicate toxicity margins, and lack of an efficient delivery system have hindered its translation to clinical applications. Herein, transcriptomic and biochemical analyses revealed that osteoarthritis was associated with selenium metabolic abnormality. A novel injectable hydrogel to deliver selenium nanoparticles (SeNPs) was proposed to intervene selenoprotein expression for osteoarthritis treatment. The hydrogels based on oxidized hyaluronic acid (OHA) cross-linked with hyaluronic acid-adipic acid dihydrazide (HA-ADH) was formulated to load SeNPs through a Schiff base reaction. The hydrogels were further incorporated with SeNPs, which exhibited minimal toxicity, mechanical properties, self-healing capability, and sustained drug release. Encapsulated with SeNPs, the hydrogels facilitated cartilage repair through synergetic effects of scavenging reactive oxygen species (ROS) and depressing apoptosis. Mechanistically, the hydrogel restored redox homeostasis by targeting glutathione peroxidase-1 (GPX1). Therapeutic outcomes of the SeNPs-laden hydrogel were demonstrated in an osteoarthritis rat model created by destabilization of the medial meniscus, including cartilage protection, subchondral bone sclerosis improvement, inflammation attenuation, and pain relief were demonstrated. These results highlight therapeutic potential of OHA/HA-ADH@SeNPs hydrogels, providing fundamental insights into remedying selenium imbalance for osteoarthritis biomaterial development.
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Affiliation(s)
- Wenhui Hu
- Department of Biomedical Materials Science, College of Biomedical Engineering, Army Medical University (Third Military Medical University), Chongqing, PR China
| | - Xuan Yao
- Department of Biomedical Materials Science, College of Biomedical Engineering, Army Medical University (Third Military Medical University), Chongqing, PR China
- Department of Clinical Hematology Faculty of Laboratory Medicine, Army Medical, University (Third Military Medical University), Chongqing, PR China
| | - Yuheng Li
- Department of Biomedical Materials Science, College of Biomedical Engineering, Army Medical University (Third Military Medical University), Chongqing, PR China
| | - Jianmei Li
- Department of Biomedical Materials Science, College of Biomedical Engineering, Army Medical University (Third Military Medical University), Chongqing, PR China
| | - Jing Zhang
- College of Bioengineering, Chongqing University, Chongqing, PR China
| | - Zhi Zou
- College of Bioengineering, Chongqing University, Chongqing, PR China
| | - Fei Kang
- Department of Biomedical Materials Science, College of Biomedical Engineering, Army Medical University (Third Military Medical University), Chongqing, PR China
| | - Shiwu Dong
- Department of Biomedical Materials Science, College of Biomedical Engineering, Army Medical University (Third Military Medical University), Chongqing, PR China
- State Key Laboratory of Trauma and Chemical Poisoning, Army Medical University (Third Military Medical University), Chongqing, PR China
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Ai S, Li Y, Zheng H, Wang Z, Liu W, Tao J, Li Y, Wang Y. Global research trends and hot spots on autophagy and kidney diseases: a bibliometric analysis from 2000 to 2022. Front Pharmacol 2023; 14:1275792. [PMID: 38099142 PMCID: PMC10719858 DOI: 10.3389/fphar.2023.1275792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 11/17/2023] [Indexed: 12/17/2023] Open
Abstract
Background: Autophagy is an essential cellular process involving the self-degradation and recycling of organelles, proteins, and cellular debris. Recent research has shown that autophagy plays a significant role in the occurrence and development of kidney diseases. However, there is a lack of bibliometric analysis regarding the relationship between autophagy and kidney diseases. Methods: A bibliometric analysis was conducted by searching for literature related to autophagy and kidney diseases in the Web of Science Core Collection (WoSCC) database from 2000 to 2022. Data processing was carried out using R package "Bibliometrix", VOSviewers, and CiteSpace. Results: A total of 4,579 articles related to autophagy and kidney diseases were collected from various countries. China and the United States were the main countries contributing to the publications. The number of publications in this field showed a year-on-year increasing trend, with open-access journals playing a major role in driving the literature output. Nanjing Medical University in China, Osaka University in Japan, and the University of Pittsburgh in the United States were the main research institutions. The journal "International journal of molecular sciences" had the highest number of publications, while "Autophagy" was the most influential journal in the field. These articles were authored by 18,583 individuals, with Dong, Zheng; Koya, Daisuke; and Kume, Shinji being the most prolific authors, and Dong, Zheng being the most frequently co-cited author. Research on autophagy mainly focused on diabetic kidney diseases, acute kidney injury, and chronic kidney disease. "Autophagy", "apoptosis", and "oxidative stress" were the primary research hotspots. Topics such as "diabetic kidney diseases", "sepsis", "ferroptosis", "nrf2", "hypertension" and "pi3k" may represent potential future development trends. Research on autophagy has gradually focused on metabolic-related kidney diseases such as diabetic nephropathy and hypertension. Additionally, PI3K, NRF2, and ferroptosis have been recent research directions in the field of autophagy mechanisms. Conclusion: This is the first comprehensive bibliometric study summarizing the relationship between autophagy and kidney diseases. The findings aid in identifying recent research frontiers and hot topics, providing valuable references for scholars investigating the role of autophagy in kidney diseases.
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Affiliation(s)
- Sinan Ai
- Beijing University of Chinese Medicine, Beijing, China
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Yake Li
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Huijuan Zheng
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China
| | - Zhen Wang
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Weijing Liu
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing, China
| | - JiaYin Tao
- Beijing University of Chinese Medicine, Beijing, China
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Yaotan Li
- Beijing University of Chinese Medicine, Beijing, China
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Yaoxian Wang
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
- Henan University of Chinese Medicine, Zhengzhou, China
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He H, Liu P, Li P. Dexmedetomidine Ameliorates Cardiac Ischemia/Reperfusion Injury by Enhancing Autophagy Through Activation of the AMPK/SIRT3 Pathway. Drug Des Devel Ther 2023; 17:3205-3218. [PMID: 37908314 PMCID: PMC10613569 DOI: 10.2147/dddt.s428024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 10/13/2023] [Indexed: 11/02/2023] Open
Abstract
Objective Myocardial ischemia-reperfusion (I/R) injury is a detrimental disease, resulting in high morbidity and mortality globally. In this study, we aimed to investigate the role of Dex in mitigating cardiac I/R injury. Methods H9c2 cells were treated with Dex (1 μM) for 24 h followed by oxygen-glucose deprivation/re-oxygenation (OGD/R). ANP and BNP mRNA of H9c2 cells and the LDH release were measured. Apoptosis of H9c2 cells was analyzed by flow cytometry. Mitochondrial membrane potential and superoxide production were detected by JC-1 staining and MitoSOXTM Red, respectively. Cell aerobic respiration was measured using Seahorse analysis. In vivo, mice were injected with Dex (25 μg/kg, i.p., once daily) for 5 days and then subjected to heart I/R. Heart function was analyzed by echocardiography. CK-MB and LDH were measured by Elisa. Infarct size was measured using TTC-Evans blue staining. Mitochondrial ultrastructure was observed using transmission electron microscopy. DHE staining, SOD activity, the content of MDA, and the content of GSH/GSSG of heart were measured to evaluate the oxidative stress. In addition, inflammatory cytokines were measured in vivo and in vitro. Furthermore, AMPK, SIRT3, and autophagy-related protein expression in the heart were detected by Western blot. Results Dex reduced the H9c2 cells injury exposed to OGD/R, accompanied by improved mitochondrial function and membrane potential. In vivo, Dex improved heart function, myocardial injury, and the mitochondria ultrastructure following I/R injury. Meanwhile, Dex inhibited myocardial oxidative stress and inflammation in the myocardial I/R. Furthermore, Compound C (an AMPK inhibitor) could inhibit Dex-induced autophagy in the I/R heart and the 3-MA (an autophagy inhibitor) could partially interfere with the effects of Dex on the protection of I/R heart. Conclusion Dex suppressed oxidative stress and inflammation by promoting autophagy through activating the AMPK/SIRT3 pathway, thus protecting the heart against the I/R injury.
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Affiliation(s)
- Hong He
- Department of Anesthesiology, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, 610072People’s Republic of China
| | - Peng Liu
- Department of Anesthesiology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, 610044People’s Republic of China
| | - Peng Li
- Department of Anesthesiology, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, 610072People’s Republic of China
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Chen J, Xu W, Dai T, Jiao S, Xue X, Jiang J, Li S, Meng Q. Pioglitazone-Loaded Cartilage-Targeted Nanomicelles (Pio@C-HA-DOs) for Osteoarthritis Treatment. Int J Nanomedicine 2023; 18:5871-5890. [PMID: 37873552 PMCID: PMC10590558 DOI: 10.2147/ijn.s428938] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 10/07/2023] [Indexed: 10/25/2023] Open
Abstract
Background Hyaluronic acid (HA) is a popular biological material for osteoarthritis (OA) treatment. Pioglitazone, a PPAR-γ agonist, has been found to inhibit OA, but its use is limited because achieving the desired local drug concentration after administration is challenging. Purpose Herein, we constructed HA-based cartilage-targeted nanomicelles (C-HA-DOs) to deliver pioglitazone in a sustained manner and evaluated their efficacy in vitro and in vivo. Methods C-HA-DOs were chemically synthesized with HA and the WYRGRL peptide and dodecylamine. The products were characterized by FT-IR, 1H NMR, zeta potential and TEM. The drug loading rate and cumulative, sustained drug release from Pio@C-HA-DOs were determined, and their biocompatibility and effect on oxidative stress in chondrocytes were evaluated. The uptake of C-HA-DOs by chondrocytes and their effect on OA-related genes were examined in vitro. The nanomicelle distribution in the joint cavity was observed by in vivo small animal fluorescence imaging (IVIS). The therapeutic effects of C-HA-DOs and Pio@C-HA-DOs in OA rats were analysed histologically. Results The C-HA-DOs had a particle size of 198.4±2.431 nm, a surface charge of -8.290±0.308 mV, and a critical micelle concentration of 25.66 mg/Land were stable in solution. The cumulative drug release from the Pio@C-HA-DOs was approximately 40% at pH 7.4 over 24 hours and approximately 50% at pH 6.4 over 4 hours. Chondrocytes rapidly take up C-HA-DOs, and the uptake efficiency is higher under oxidative stress. In chondrocytes, C-HA-DOs, and Pio@C-HA-DOs inhibited H2O2-induced death, reduced intracellular ROS levels, and restored the mitochondrial membrane potential. The IVIS images confirmed that the micelles target cartilage. Pio@C-HA-DOs reduced the degradation of collagen II and proteoglycans by inhibiting the expression of MMP and ADAMTS, ultimately delaying OA progression in vitro and in vivo. Conclusion Herein, C-HA-DOs provided targeted drug delivery to articular cartilage and improved the role of pioglitazone in the treatment of OA.
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Affiliation(s)
- Junyan Chen
- Guizhou Medical University, Guiyang, 550025, People’s Republic of China
- Department of Orthopaedics, Guangzhou Red Cross Hospital of Jinan University, Guangzhou, 510220, People’s Republic of China
| | - Wuyan Xu
- Department of Orthopaedics, Guangzhou Red Cross Hospital of Jinan University, Guangzhou, 510220, People’s Republic of China
| | - Tianming Dai
- Guangzhou Institute of Traumatic Surgery, Guangzhou Red Cross Hospital of Jinan University, Guangzhou, 510220, People’s Republic of China
| | - Songsong Jiao
- Department of Orthopaedics, Guangzhou Red Cross Hospital of Jinan University, Guangzhou, 510220, People’s Republic of China
| | - Xiang Xue
- Department of Orthopaedics, Guangzhou Red Cross Hospital of Jinan University, Guangzhou, 510220, People’s Republic of China
| | - Jiayang Jiang
- Guizhou Medical University, Guiyang, 550025, People’s Republic of China
- Department of Orthopaedics, Guangzhou Red Cross Hospital of Jinan University, Guangzhou, 510220, People’s Republic of China
| | - Siming Li
- Guizhou Medical University, Guiyang, 550025, People’s Republic of China
- Guangzhou Institute of Traumatic Surgery, Guangzhou Red Cross Hospital of Jinan University, Guangzhou, 510220, People’s Republic of China
| | - Qingqi Meng
- Guangzhou Institute of Traumatic Surgery, Guangzhou Red Cross Hospital of Jinan University, Guangzhou, 510220, People’s Republic of China
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Xiao J, Zhang P, Cai FL, Luo CG, Pu T, Pan XL, Tian M. IL-17 in osteoarthritis: A narrative review. Open Life Sci 2023; 18:20220747. [PMID: 37854319 PMCID: PMC10579884 DOI: 10.1515/biol-2022-0747] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 08/18/2023] [Accepted: 09/07/2023] [Indexed: 10/20/2023] Open
Abstract
Osteoarthritis (OA) is a painful joint disease that is common among the middle-aged and elderly populations, with an increasing prevalence. Therapeutic options for OA are limited, and the pathogenic mechanism of OA remains unclear. The roles of cytokines and signaling pathways in the development of OA is a current research hot spot. Interleukin (IL)-17 is a pleiotropic inflammatory cytokine produced mainly by T helper 17 cells that has established roles in host defense, tissue repair, lymphoid tissue metabolism, tumor progression, and pathological processes of immune diseases, and studies in recent years have identified an important role for IL-17 in the progression of OA. This narrative review focuses on the mechanisms by which IL-17 contributes to articular cartilage degeneration and synovial inflammation in OA and discusses how IL-17 and the IL-17 signaling pathway affect the pathological process of OA. Additionally, therapeutic targets that have been proposed in recent years based on IL-17 and its pathway in OA are summarized as well as recent advances in the study of IL-17 pathway inhibitors and the potential challenges of their use for OA treatment.
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Affiliation(s)
- Juan Xiao
- Department of Rheumatology and Immunology Department, Affiliated Hospital of Zunyi Medical University, Zunyi563000, China
| | - Ping Zhang
- The First School of Clinical Medicine, Zunyi Medical University, Zunyi563000, China
| | - Fang-Lan Cai
- Department of Rheumatology and Immunology Department, Zunyi Medical University, Zunyi563000, China
| | - Cheng-Gen Luo
- The First School of Clinical Medicine, Zunyi Medical University, Zunyi563000, China
| | - Tao Pu
- Department of Nephrology and Rheumatology, Moutai Hospital, Renhuai 564500Guizhou, China
| | - Xiao-Li Pan
- Department of Rheumatology and Immunology Department, Affiliated Hospital of Zunyi Medical University, Zunyi563000, China
| | - Mei Tian
- Department of Rheumatology and Immunology Department, Affiliated Hospital of Zunyi Medical University, Zunyi563000, China
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Liu L, Lu O, Li D, Tian Y, Liu Z, Wen Y, Peng T, Song Y, Du X, Wang Z, Liu G, Li X. Sirtuin 3 mitigates oxidative-stress-induced apoptosis in bovine mammary epithelial cells. J Dairy Sci 2023; 106:7266-7280. [PMID: 37730176 DOI: 10.3168/jds.2023-23366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Accepted: 03/18/2023] [Indexed: 09/22/2023]
Abstract
Ketosis is often accompanied by a reduction in milk production in dairy cows, but the molecular mechanism has not been fully elucidated. Ketotic cows possess systemic oxidative stress (OS), which may implicate apoptosis in mammary glands. Sirtuin 3 (SIRT3) is a vital regulator of cellular redox homeostasis and is under the control of AMP-activated protein kinase (AMPK) signaling in nonruminants. Thus, we aimed to investigate (1) the AMPK-SIRT3 and apoptosis status of mammary glands from ketotic cows, (2) the effect of SIRT3 on OS-induced apoptosis in bovine mammary epithelial cells (BMEC), and (3) the role of AMPK signaling on SIRT3-mediated effects on apoptosis. Mammary gland samples were reused from a previous study, which contained healthy and ketotic cows (both n = 15). BMEC were incubated with 0, 0.3, 0.6, or 0.9 mM H2O2 for 6 h with/without a 30 min incubation of an antioxidant MitoQ (1 μM). Then BMEC were incubated with SIRT3 overexpression adenovirus (Ad-SIRT3) for 6 h followed by a 6 h incubation with 0.6 mM H2O2. Finally, BMEC were treated with the AMPK inhibitor Compound C (Cd C,10 μM) for 30 min before the H2O2 challenge, or cells were initially treated with the AMPK agonist MK8722 (10 μM) for 30 min followed by a 30-h culture with/without si-SIRT3 and eventually the H2O2 exposure. Ketotic cows displayed higher levels of Bax, Caspase-3 and Bax/Bcl-2 but lower levels of Bcl-2 in mammary glands. H2O2 incubation displayed similar results, exhibiting a dose-dependent manner between the H2O2 concentration and the apoptosis degree. Mito Q pretreatment reduced cellular reactive oxygen species and rescued cells from apoptosis. Ketotic cows had a lower mammary protein abundance of SIRT3. Similarly, H2O2 incubation downregulated both mRNA and protein levels of SIRT3 in a dose- and time-dependent manner. Ad-SIRT3 infection lowered levels of cellular reactive oxygen species, Bax, Caspase-3 and Bax/Bcl-2 but increased levels of Bcl-2. TUNEL assays confirmed that Ad-SIRT3 infection mitigated H2O2-induced apoptosis. Both ketotic cows and H2O2-induced BMEC had lower levels of p-AMPK and p-AMPK/AMPK. Additionally, Cd C pretreatment decreased SIRT3 and Bcl-2 expression but increased levels of Bax and Caspase-3. Contrary to the inhibitor, MK8722 had opposite effects and reduced the percentage of apoptotic cells. However, these effects of MK8722 were reversed upon SIRT3 silencing. In conclusion, in vivo data confirmed that ketosis is associated with greater apoptosis and restricted AMPK-SIRT3 signaling in mammary glands; in vitro data indicated that SIRT3 mitigates OS-induced apoptosis via AMPK signaling. As such, there may be potential benefits for targeting the AMPK-SIRT3 axis to help counteract the negative effects of mammary glands during ketosis.
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Affiliation(s)
- Lei Liu
- College of Veterinary Medicine, Hunan Provincial Key Laboratory of Protein Engineering in Animal Vaccines, Hunan Agricultural University, Changsha, 410128, China
| | - Ouyang Lu
- College of Veterinary Medicine, Hunan Provincial Key Laboratory of Protein Engineering in Animal Vaccines, Hunan Agricultural University, Changsha, 410128, China
| | - Dan Li
- College of Veterinary Medicine, Hunan Provincial Key Laboratory of Protein Engineering in Animal Vaccines, Hunan Agricultural University, Changsha, 410128, China
| | - Yuan Tian
- College of Veterinary Medicine, Hunan Provincial Key Laboratory of Protein Engineering in Animal Vaccines, Hunan Agricultural University, Changsha, 410128, China
| | - Ziling Liu
- College of Veterinary Medicine, Hunan Provincial Key Laboratory of Protein Engineering in Animal Vaccines, Hunan Agricultural University, Changsha, 410128, China
| | - Yanqiong Wen
- College of Veterinary Medicine, Hunan Provincial Key Laboratory of Protein Engineering in Animal Vaccines, Hunan Agricultural University, Changsha, 410128, China
| | - Tao Peng
- College of Veterinary Medicine, Hunan Provincial Key Laboratory of Protein Engineering in Animal Vaccines, Hunan Agricultural University, Changsha, 410128, China
| | - Yuxiang Song
- Key Laboratory of Zoonosis, Ministry of Education, College of Veterinary Medicine, Jilin University, 5333 Xi'an Road, Changchun, 130062, Jilin, China
| | - Xiliang Du
- Key Laboratory of Zoonosis, Ministry of Education, College of Veterinary Medicine, Jilin University, 5333 Xi'an Road, Changchun, 130062, Jilin, China
| | - Zhe Wang
- Key Laboratory of Zoonosis, Ministry of Education, College of Veterinary Medicine, Jilin University, 5333 Xi'an Road, Changchun, 130062, Jilin, China
| | - Guowen Liu
- Key Laboratory of Zoonosis, Ministry of Education, College of Veterinary Medicine, Jilin University, 5333 Xi'an Road, Changchun, 130062, Jilin, China
| | - Xinwei Li
- Key Laboratory of Zoonosis, Ministry of Education, College of Veterinary Medicine, Jilin University, 5333 Xi'an Road, Changchun, 130062, Jilin, China.
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Liu Z, Huang J, Wang X, Deng S, Zhou J, Gong Z, Li X, Wang Y, Yang J, Hu Y. Dapagliflozin suppress endoplasmic reticulum stress mediated apoptosis of chondrocytes by activating Sirt1. Chem Biol Interact 2023; 384:110724. [PMID: 37741535 DOI: 10.1016/j.cbi.2023.110724] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 09/15/2023] [Accepted: 09/20/2023] [Indexed: 09/25/2023]
Abstract
OBJECTIVE Osteoarthritis (OA) is a common joint disease characterized by inflammation and cartilage degeneration. Accumulating evidences support that endoplasmic reticulum (ER) stress induced OA chondrocytes apoptosis. The hypoglycemic and anti-inflammatory properties render Dapagliflozin (DAPA) effective in reducing ER stress on cells. However, its impact and potential mechanisms on the OA pathology are still obscure. The present study aimed to investigate whether DAPA attenuates ER stress in chondrocytes by activating sirt1 and delays the progression of OA. METHODS In vitro, we first investigated the effect of DAPA on chondrocytes viability with IL-1β or not for 24 or 48 h. Then, chondrocytes were treated with 10 ng/ml IL-1β and 10 μM dapagliflozin with10 μM thapsigargin, 5 μM SRT1460 or not. Chondrocytes apoptosis in each group were detected by Tunel staining and flow cytometric. Immunofluorescence staining was applied to quantify the expression levels of cleaved caspase-3, Sirt1 and CHOP in chondrocytes. Inhibition of ER stress in chondrocytes associated with sirt1 activation were verified by PCR and western blotting. In addition, the effects of DAPA on cartilage were validated by a series of experiments in OA rat model, such as micro-CT, histological and immunohistochemical assay. RESULTS The data demonstrated that DAPA alleviates IL-1β induced ER stress related chondrocytes apoptosis, and PCR and western blotting data confirmed that DAPA inhibits the PERK-eIF2α-CHOP pathway by activating Sirt1. Besides, immunohistochemical results showed that DAPA enhanced the expression of Sirt1 and Collagen II in OA rats, and inhibited the expression of CHOP and cleaved caspase-3. Meanwhile, histological staining and micro-CT photography also confirmed that DAPA alleviated inflammation and cartilage degeneration in OA rat. CONCLUSIONS The study demonstrated the relationship of ER stress and inflammation in the progression of OA, and verified that DAPA could inhibit PERK-eIF2α-CHOP axis of the ER stress response by activating Sirt1 in IL-1β treated rat chondrocytes and potentially prevent the OA development.
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Affiliation(s)
- Zilin Liu
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei Province, PR China; Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei Province, PR China
| | - Jun Huang
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei Province, PR China; Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei Province, PR China
| | - Xuezhong Wang
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei Province, PR China; Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei Province, PR China
| | - Shuang Deng
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei Province, PR China; Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei Province, PR China
| | - Jianlin Zhou
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei Province, PR China; Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei Province, PR China
| | - Ziheng Gong
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei Province, PR China; Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei Province, PR China
| | - Xuyang Li
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei Province, PR China; Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei Province, PR China
| | - Yanjie Wang
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei Province, PR China; Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei Province, PR China
| | - Jian Yang
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei Province, PR China; Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei Province, PR China.
| | - Yong Hu
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei Province, PR China; Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei Province, PR China.
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Zhang P, Xiao J, Luo C, Liu X, Li C, Zhao J, Liu X, Pan X, Tian M. The Effect of JAK Inhibitor Tofacitinib on Chondrocyte Autophagy. Inflammation 2023; 46:1764-1776. [PMID: 37310645 DOI: 10.1007/s10753-023-01840-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 05/03/2023] [Accepted: 05/15/2023] [Indexed: 06/14/2023]
Abstract
Osteoarthritis (OA) is a multifactorial disease of the whole joint that has a complex pathogenesis. There is currently no cure for OA. Tofacitinib is a broad JAK inhibitor that can have an anti-inflammatory effect. The objective of this study was to investigate the effect of tofacitinib on the cartilage extracellular matrix in OA and determine whether tofacitinib exerts a protective effect by inhibiting the JAK1/STAT3 signaling pathway and upregulating autophagy in chondrocytes. We investigated the expression profile of OA in vitro by exposing SW1353 cells to interleukin-1β (IL-1β), and induced OA in vivo using the modified Hulth method in rats. We found that IL-1β promoted the expression of OA-related matrix metalloproteinases (MMP3 and MMP13), reduced the expression of collagen II, reduced the expression of beclin1 and LC3-II/I, and promoted the accumulation of p62 in SW1353 cells. Tofacitinib attenuated IL-1β-stimulated changes in MMPs and collagen II and restored autophagy. In IL-1β-stimulated SW1353 cells, the JAK1/STAT3 signaling pathway was activated. Tofacitinib inhibited the IL-1β-stimulated expression of p-JAK1 and p-STAT3 and prevented translocation of p-STAT3 to the nucleus. In the rat model of OA, tofacitinib reduced articular cartilage degeneration by delaying cartilage extracellular matrix degradation and increasing chondrocyte autophagy. Our study demonstrates that chondrocyte autophagy was impaired in experimental models of OA. Tofacitinib reduced the inflammatory response and restored the damaged autophagic flux in OA.
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Affiliation(s)
- Ping Zhang
- Department of Rheumatology and Immunology, Affiliated Hospital of Zunyi Medical University, Huichuan District, 149 Dalian Road, Zunyi, 563003, China
| | - Juan Xiao
- Department of Rheumatology and Immunology, Affiliated Hospital of Zunyi Medical University, Huichuan District, 149 Dalian Road, Zunyi, 563003, China
| | - Chenggen Luo
- Department of Rheumatology and Immunology, Affiliated Hospital of Zunyi Medical University, Huichuan District, 149 Dalian Road, Zunyi, 563003, China
| | - Xiaorui Liu
- Department of Rheumatology and Immunology, Affiliated Hospital of Zunyi Medical University, Huichuan District, 149 Dalian Road, Zunyi, 563003, China
| | - Chunyan Li
- Department of Rheumatology and Immunology, Affiliated Hospital of Zunyi Medical University, Huichuan District, 149 Dalian Road, Zunyi, 563003, China
| | - Jing Zhao
- Department of Rheumatology and Immunology, Affiliated Hospital of Zunyi Medical University, Huichuan District, 149 Dalian Road, Zunyi, 563003, China
| | - Xu Liu
- Department of Rheumatology and Immunology, Peking University People's Hospital, Beijing, China
| | - Xiaoli Pan
- Department of Rheumatology and Immunology, Affiliated Hospital of Zunyi Medical University, Huichuan District, 149 Dalian Road, Zunyi, 563003, China.
| | - Mei Tian
- Department of Rheumatology and Immunology, Affiliated Hospital of Zunyi Medical University, Huichuan District, 149 Dalian Road, Zunyi, 563003, China.
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Xiao H, Xie Y, Xi K, Xie J, Liu M, Zhang Y, Cheng Z, Wang W, Guo B, Wu S. Targeting Mitochondrial Sirtuins in Age-Related Neurodegenerative Diseases and Fibrosis. Aging Dis 2023; 14:1583-1605. [PMID: 37196115 PMCID: PMC10529758 DOI: 10.14336/ad.2023.0203] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 02/03/2023] [Indexed: 05/19/2023] Open
Abstract
Aging is a natural and complex biological process that is associated with widespread functional declines in numerous physiological processes, terminally affecting multiple organs and tissues. Fibrosis and neurodegenerative diseases (NDs) often occur with aging, imposing large burdens on public health worldwide, and there are currently no effective treatment strategies for these diseases. Mitochondrial sirtuins (SIRT3-5), which are members of the sirtuin family of NAD+-dependent deacylases and ADP-ribosyltransferases, are capable of regulating mitochondrial function by modifying mitochondrial proteins that participate in the regulation of cell survival under various physiological and pathological conditions. A growing body of evidence has revealed that SIRT3-5 exert protective effects against fibrosis in multiple organs and tissues, including the heart, liver, and kidney. SIRT3-5 are also involved in multiple age-related NDs, including Alzheimer's disease, Parkinson's disease, and Huntington's disease. Furthermore, SIRT3-5 have been noted as promising targets for antifibrotic therapies and the treatment of NDs. This review systematically highlights recent advances in knowledge regarding the role of SIRT3-5 in fibrosis and NDs and discusses SIRT3-5 as therapeutic targets for NDs and fibrosis.
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Affiliation(s)
- Haoxiang Xiao
- Department of Neurobiology, School of Basic Medicine, Fourth Military Medical University, Xi’an, China.
| | - Yuqiao Xie
- Department of Neurobiology, School of Basic Medicine, Fourth Military Medical University, Xi’an, China.
| | - Kaiwen Xi
- Department of Neurobiology, School of Basic Medicine, Fourth Military Medical University, Xi’an, China.
| | - Jinyi Xie
- Department of Neurobiology, School of Basic Medicine, Fourth Military Medical University, Xi’an, China.
| | - Mingyue Liu
- Medical School, Yan’an University, Yan’an, China
| | - Yangming Zhang
- Department of Neurobiology, School of Basic Medicine, Fourth Military Medical University, Xi’an, China.
| | - Zishuo Cheng
- Department of Neurobiology, School of Basic Medicine, Fourth Military Medical University, Xi’an, China.
| | - Wenting Wang
- Department of Neurobiology, School of Basic Medicine, Fourth Military Medical University, Xi’an, China.
| | - Baolin Guo
- Department of Neurobiology, School of Basic Medicine, Fourth Military Medical University, Xi’an, China.
| | - Shengxi Wu
- Department of Neurobiology, School of Basic Medicine, Fourth Military Medical University, Xi’an, China.
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Tao H, Zhu P, Xia W, Chu M, Chen K, Wang Q, Gu Y, Lu X, Bai J, Geng D. The Emerging Role of the Mitochondrial Respiratory Chain in Skeletal Aging. Aging Dis 2023:AD.2023.0924. [PMID: 37815897 DOI: 10.14336/ad.2023.0924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 09/24/2023] [Indexed: 10/12/2023] Open
Abstract
Maintenance of mitochondrial homeostasis is crucial for ensuring healthy mitochondria and normal cellular function. This process is primarily responsible for regulating processes that include mitochondrial OXPHOS, which generates ATP, as well as mitochondrial oxidative stress, apoptosis, calcium homeostasis, and mitophagy. Bone mesenchymal stem cells express factors that aid in bone formation and vascular growth. Positive regulation of hematopoietic stem cells in the bone marrow affects the differentiation of osteoclasts. Furthermore, the metabolic regulation of cells that play fundamental roles in various regions of the bone, as well as interactions within the bone microenvironment, actively participates in regulating bone integrity and aging. The maintenance of cellular homeostasis is dependent on the regulation of intracellular organelles, thus understanding the impact of mitochondrial functional changes on overall bone metabolism is crucially important. Recent studies have revealed that mitochondrial homeostasis can lead to morphological and functional abnormalities in senescent cells, particularly in the context of bone diseases. Mitochondrial dysfunction in skeletal diseases results in abnormal metabolism of bone-associated cells and a secondary dysregulated microenvironment within bone tissue. This imbalance in the oxidative system and immune disruption in the bone microenvironment ultimately leads to bone dysplasia. In this review, we examine the latest developments in mitochondrial respiratory chain regulation and its impacts on maintenance of bone health. Specifically, we explored whether enhancing mitochondrial function can reduce the occurrence of bone cell deterioration and improve bone metabolism. These findings offer prospects for developing bone remodeling biology strategies to treat age-related degenerative diseases.
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Affiliation(s)
- Huaqiang Tao
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Jiangsu, China
| | - Pengfei Zhu
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Jiangsu, China
| | - Wenyu Xia
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Jiangsu, China
| | - Miao Chu
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Jiangsu, China
| | - Kai Chen
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Jiangsu, China
| | - Qiufei Wang
- Department of Orthopedics, Changshu Hospital Affiliated to Soochow University, First People's Hospital of Changshu City, Jiangsu, China
| | - Ye Gu
- Department of Orthopedics, Changshu Hospital Affiliated to Soochow University, First People's Hospital of Changshu City, Jiangsu, China
| | - Xiaomin Lu
- Department of Oncology, Affiliated Haian Hospital of Nantong University, Jiangsu, China
| | - Jiaxiang Bai
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Jiangsu, China
- Department of Orthopedics, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Anhui, China
| | - Dechun Geng
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Jiangsu, China
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Zheng G, Ren J, Shang L, Bao Y. Role of autophagy in the pathogenesis and regulation of pain. Eur J Pharmacol 2023; 955:175859. [PMID: 37429517 DOI: 10.1016/j.ejphar.2023.175859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 06/08/2023] [Accepted: 06/15/2023] [Indexed: 07/12/2023]
Abstract
Pain is a ubiquitous and highly concerned clinical symptom, usually caused by peripheral or central nervous injury, tissue damage, or other diseases. The long-term existence of pain can seriously affect daily physical function and quality of life and produce great torture on the physiological and psychological levels. However, the complex pathogenesis of pain involving molecular mechanisms and signaling pathways has not been fully elucidated, and managing pain remains highly challenging. As a result, finding new targets to pursue effective and long-term pain treatment strategies is required and urgent. Autophagy is an intracellular degradation and recycling process that maintains tissue homeostasis and energy supply, which can be cytoprotective and is vital in maintaining neural plasticity and proper nervous system function. Much evidence has shown that autophagy dysregulation is linked to the emergence of neuropathic pain, such as postherpetic neuralgia and cancer-related pain. Autophagy has also been connected to pain caused by osteoarthritis and lumbar disc degeneration. It is worth noting that in recent years, studies on traditional Chinese medicine have also proved that several traditional Chinese medicine monomers involve autophagy in the mechanism of pain relief. Therefore, autophagy can serve as a potential regulatory target to provide new ideas and inspiration for pain management.
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Affiliation(s)
- Guangda Zheng
- Department of Oncology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, 100053, China.
| | - Juanxia Ren
- Liaoning University of Traditional Chinese Medicine, Shenyang, 110847, Liaoning Province, China.
| | - Lu Shang
- Liaoning University of Traditional Chinese Medicine, Shenyang, 110847, Liaoning Province, China.
| | - Yanju Bao
- Department of Oncology, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, 100053, China.
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Tang Z, Feng H, Chen X, Shao S, Li C. SNORC knockdown alleviates inflammation, autophagy defect and matrix degradation of chondrocytes in osteoarthritis development. Mol Cell Biochem 2023:10.1007/s11010-023-04842-9. [PMID: 37659033 DOI: 10.1007/s11010-023-04842-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 08/23/2023] [Indexed: 09/05/2023]
Abstract
Excessive inflammation and autophagy defect of chondrocytes play important roles in the pathological process of osteoarthritis (OA). The present study aimed to clarify the roles of small novel rich in cartilage (SNORC) in these pathological changes of chondrocytes in OA. Bioinformatics analysis of GEO dataset GSE207881 displayed that SNORC was a potential biomarker for OA. As confirmed by quantitative real-time PCR, immunohistochemical staining and western blotting, SNORC was significantly up-regulated in cartilage of OA rat model and interleukin (IL)-1β-stimulated primary rat articular chondrocytes in contrast to their corresponding normal control. Knocking down SNORC in IL-1β-induced chondrocytes obviously suppressed the production of nitric oxide (NO), IL-6, tumor necrosis factor (TNF)-α and prostaglandin E2 (PGE2) to alleviate inflammation, and reduced the protein levels of a disintegrin and metalloproteinase with thrombospondin 5 (ADAMTS5) and matrix metallopeptidase (MMP)13 and elevated collagen type 2 alpha 1 (COL2A1) level to improve matrix degradation. Down-regulation of SNORC increased Beclin1 expression and LC3II/LC3I ratio, but suppressed p62 expression to restore impaired autophagy in IL-1β-induced chondrocytes. Moreover, down-regulating SNORC mitigated mitochondrial dysfunction and apoptosis in IL-1β-stimulated chondrocytes. Mechanically, SNORC simultaneously activated the phosphatidylinositol-3-kinase/serine threonine kinase (PI3K/AKT) and c-Jun N-terminal kinase (JNK)/c-Jun signaling pathway in the IL-1β-induced chondrocyte, while re-activating the PI3K and JNK signals abolished the suppressive effect of down-regulating SNORC on IL-1β-induced chondrocyte damage. In a word, SNORC knockdown alleviates inflammation, matrix degradation, autophagy defect and excessive apoptosis of chondrocytes during OA development via suppressing the PI3K and JNK signaling pathway.
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Affiliation(s)
- Zhifang Tang
- Clinical Medical College of Dali University, Dali, 671000, China
| | - Hanzhen Feng
- Clinical Medical College of Dali University, Dali, 671000, China
| | - Xusheng Chen
- Kunming Medical University, Kunming, 650500, China
| | - Shuiyan Shao
- Yunnan University of Chinese Medicine, Kunming, 650500, China
| | - Chuan Li
- Institute of Traumatology and Orthopedics, 920th Hospital of Joint Logistics Support Force, PLA, No.212 Daguan Road, Xishan District, Kunming, Yunnan, 650000, China.
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Qi Z, Zhu J, Cai W, Lou C, Li Z. The role and intervention of mitochondrial metabolism in osteoarthritis. Mol Cell Biochem 2023:10.1007/s11010-023-04818-9. [PMID: 37486450 DOI: 10.1007/s11010-023-04818-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Accepted: 07/15/2023] [Indexed: 07/25/2023]
Abstract
Osteoarthritis (OA), a prevalent degenerative joint disease, affects a substantial global population. Despite the elusive etiology of OA, recent investigations have implicated mitochondrial dysfunction as a significant factor in disease pathogenesis. Mitochondria, pivotal cellular organelles accountable for energy production, exert essential roles in cellular metabolism. Hence, mitochondrial dysfunction can exert broad-ranging effects on various cellular processes implicated in OA development. This comprehensive review aims to provide an overview of the metabolic alterations occurring in OA and elucidate the diverse mechanisms through which mitochondrial dysfunction can contribute to OA pathogenesis. These mechanisms encompass heightened oxidative stress and inflammation, perturbed chondrocyte metabolism, and compromised autophagy. Furthermore, this review will explore potential interventions targeting mitochondrial metabolism as means to impede or decelerate the progression of OA. In summary, this review offers a comprehensive understanding of the involvement of mitochondrial metabolism in OA and underscores prospective intervention strategies.
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Affiliation(s)
- Zhanhai Qi
- Department of Orthopedics, The 960th hospital of the Joint Logistics Support Force of the People's Liberation Army, Jinan, Shandong, China
| | - Jiaping Zhu
- Department of Orthopedics, Jinan City People's Hospital, Jinan, Shandong, China
| | - Wusheng Cai
- Department of Orthopedics, Heze Third People's Hospital, Heze, Shandong, China
| | - Chunbiao Lou
- Department of Orthopedics, Heze Third People's Hospital, Heze, Shandong, China
| | - Zongyu Li
- Department of Orthopedics, The 960th hospital of the Joint Logistics Support Force of the People's Liberation Army, Jinan, Shandong, China.
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Liu Y, Liu Q, Zhang Z, Yang Y, Zhou Y, Yan H, Wang X, Li X, Zhao J, Hu J, Yang S, Tian Y, Yao Y, Qiu Z, Song Y, Yang Y. The regulatory role of PI3K in ageing-related diseases. Ageing Res Rev 2023; 88:101963. [PMID: 37245633 DOI: 10.1016/j.arr.2023.101963] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 05/23/2023] [Accepted: 05/25/2023] [Indexed: 05/30/2023]
Abstract
Ageing is a physiological/pathological process accompanied by the progressive damage of cell function, triggering various ageing-related disorders. Phosphatidylinositol 3-kinase (PI3K), which serves as one of the central regulators of ageing, is closely associated with cellular characteristics or molecular features, such as genome instability, telomere erosion, epigenetic alterations, and mitochondrial dysfunction. In this review, the PI3K signalling pathway was firstly thoroughly explained. The link between ageing pathogenesis and the PI3K signalling pathway was then summarized. Finally, the key regulatory roles of PI3K in ageing-related illnesses were investigated and stressed. In summary, we revealed that drug development and clinical application targeting PI3K is one of the focal points for delaying ageing and treating ageing-related diseases in the future.
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Affiliation(s)
- Yanqing Liu
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, Northwest University, Xi'an 710069, China
| | - Qiong Liu
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, Northwest University, Xi'an 710069, China
| | - Zhe Zhang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, Northwest University, Xi'an 710069, China
| | - Yaru Yang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, Northwest University, Xi'an 710069, China
| | - Yazhe Zhou
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, Northwest University, Xi'an 710069, China
| | - Huanle Yan
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, Northwest University, Xi'an 710069, China
| | - Xin Wang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, Northwest University, Xi'an 710069, China
| | - Xiaoru Li
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, Northwest University, Xi'an 710069, China
| | - Jing Zhao
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, Northwest University, Xi'an 710069, China
| | - Jingyan Hu
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, Northwest University, Xi'an 710069, China
| | - Shulin Yang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, Northwest University, Xi'an 710069, China
| | - Yifan Tian
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, Northwest University, Xi'an 710069, China
| | - Yu Yao
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, Northwest University, Xi'an 710069, China
| | - Zhenye Qiu
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, Northwest University, Xi'an 710069, China
| | - Yanbin Song
- Department of Cardiology, Affiliated Hospital, Yan'an University, 43 North Street, Yan'an 716000, China.
| | - Yang Yang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, Northwest University, Xi'an 710069, China.
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Liu Z, Wang T, Sun X, Nie M. Autophagy and apoptosis: regulatory factors of chondrocyte phenotype transition in osteoarthritis. Hum Cell 2023:10.1007/s13577-023-00926-2. [PMID: 37277675 DOI: 10.1007/s13577-023-00926-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 05/25/2023] [Indexed: 06/07/2023]
Abstract
Osteoarthritis (OA) is the main pathogenic factor in diseases that cause joint deformities. As the main manifestation of the progress of OA, cartilage degradation has been closely associated with the degeneration of chondrocytes, which is induced by inflammatory factors and other trauma factors. Autophagy and apoptosis are the main mechanisms for cells to maintain homeostasis and play crucial roles in OA. Under the influence of external environmental factors (such as aging and injury), the metabolism of cells can be altered, which may affect the extent of autophagy and apoptosis. With the progression of OA, these changes can alter the cell phenotypes, and the cells of different phenotypes display distinct differences in morphology and function. In this review, we have summarized the alteration in cell metabolism, autophagy, and the extent of apoptosis during OA progression and its effects on the cell phenotypes to provide new ideas for further research on the mechanisms of phenotypic transition and therapeutic strategies so as to reverse the cell phenotypes.
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Affiliation(s)
- Zhibo Liu
- Center for Joint Surgery, Department of Orthopedic Surgery, The Second Affiliated Hospital of Chongqing Medical University, 76 Linjiang Road, Yuzhong District, Chongqing, People's Republic of China
| | - Ting Wang
- Center for Joint Surgery, Department of Orthopedic Surgery, The Second Affiliated Hospital of Chongqing Medical University, 76 Linjiang Road, Yuzhong District, Chongqing, People's Republic of China
| | - Xianding Sun
- Center for Joint Surgery, Department of Orthopedic Surgery, The Second Affiliated Hospital of Chongqing Medical University, 76 Linjiang Road, Yuzhong District, Chongqing, People's Republic of China.
| | - Mao Nie
- Center for Joint Surgery, Department of Orthopedic Surgery, The Second Affiliated Hospital of Chongqing Medical University, 76 Linjiang Road, Yuzhong District, Chongqing, People's Republic of China.
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Wei K, Shu Z, Pu H, Xu H, Li S, Xiao J, Zhu Y, Ma T. Cystathionine-γ-lyase attenuates inflammatory response and pain of osteoarthritis. Int Immunopharmacol 2023; 120:110289. [PMID: 37182456 DOI: 10.1016/j.intimp.2023.110289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 04/25/2023] [Accepted: 05/02/2023] [Indexed: 05/16/2023]
Abstract
The chronic articular disease osteoarthritis (OA) is characterized by osteophyte generation, subchondral bone remodeling, and cartilage deterioration. Low levels of H2S catalyzed by cystathionine-γ-lyase (CSE) encoded by Cthhas neuroprotective, cardioprotective, anti-apoptotic, and anti-inflammatory effects thus, Cth is being developed as a potential therapy for the management of the pathogenesis and symptoms of osteoarthritis. Single-cell RNA sequencing (scRNA-seq) and immunohistochemistry of human cartilage revealed that the expression of CTH was decreased in OA patients. We found that Cthoverexpression decrease IL-1β-induced overactivation of the NF-κB signaling pathway. In vivo, Cthoverexpression relieved pain response and cartilage damage in the anterior cruciate ligament transection (ACLT) rat model. In vitro, CSE alleviated chondrocytes catabolism, inflammation, apoptosis, and senescence, and suppressed the NF-κB pathway. We postulate that CSE has therapeutic effects in suppressing inflammation and degeneration in OA and should be further investigated clinically.
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Affiliation(s)
- Kang Wei
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095, Jiefang Ave, Wuhan, Hubei, 430030, China
| | - Zixing Shu
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095, Jiefang Ave, Wuhan, Hubei, 430030, China
| | - Hongxu Pu
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095, Jiefang Ave, Wuhan, Hubei, 430030, China
| | - Huanhuan Xu
- Department of Obstetrics and Gynecology, Wuhan Children's Hospital, Tongji Medical College, Huazhong University of Science and Technology, 100, Xianggang Road, Wuhan 430000, China
| | - Song Li
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095, Jiefang Ave, Wuhan, Hubei, 430030, China
| | - Jun Xiao
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095, Jiefang Ave, Wuhan, Hubei, 430030, China
| | - Yuanli Zhu
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095, Jiefang Ave, Wuhan, Hubei, 430030, China.
| | - Tian Ma
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095, Jiefang Ave, Wuhan, Hubei, 430030, China.
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Zhang R, Deng X, Liu Q, Zhang X, Bai X, Weng S, Chen M. Global research trends and hotspots of PI3K/Akt signaling pathway in the field of osteoarthritis: A bibliometric study. Medicine (Baltimore) 2023; 102:e33489. [PMID: 37058031 PMCID: PMC10101318 DOI: 10.1097/md.0000000000033489] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 03/20/2023] [Indexed: 04/15/2023] Open
Abstract
The phosphatidylinositol 3-kinase/protein kinase B (PI3K/Akt) signaling pathway has gradually become a new target for the treatment of osteoarthritis (OA). Numerous studies of PI3K/Akt signaling in OA have been published in the past few years. By analyzing these research characteristics and qualities, we aimed to reveal the current research focus and emerging trends in PI3K/Akt signaling in OA. We searched the Web of Science database for relevant articles concerning the PI3K/Akt signaling pathway in OA published from inception to October 31, 2022. The following data were extracted: author name, article title, keywords, topic, publication country/region, institution, publication journal, journal impact factor, number of times cited, and H-index. VOSviewer and Excel 2019 were used to conduct the bibliometric study and visualize the analysis. A total of 374 publications were included in this study. In all selected articles, "orthopedics" was the dominant topic (252 of 374, 67.38%). The most productive year was 2021. Frontiers in Pharmacology published the most articles. The People's Republic of China has published the most articles worldwide. The top 5 keywords were "OA," "expression," "apoptosis," "chondrocytes," and "inflammation." The keywords "autophagy," "mitochondrial dysfunction," "inflammatory response," "cartilage degeneration," and "network pharmacology" have increased in recent years. Our study showed a growing trend in published articles related to the PI3K/Akt signaling pathway in OA. Inflammatory response, cartilage degeneration, and apoptosis remain central topics in the field. Research on autophagy, mitochondrial dysfunction, and network pharmacology is on the rise, and the focus on PI3K/Akt will continue to increase.
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Affiliation(s)
- Rui Zhang
- Department of Orthopedic, Fujian Medical University Union Hospital, Fuzhou, China
| | - Xiaoqin Deng
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou, China
| | - Quan Liu
- Department of Orthopedic, Fujian Medical University Union Hospital, Fuzhou, China
| | - Xintian Zhang
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou, China
| | - Xinxin Bai
- Department of Orthopedic, Fujian Medical University Union Hospital, Fuzhou, China
| | - Shaohuang Weng
- Department of Pharmaceutical Analysis, School of Pharmacy, Fujian Medical University, Fuzhou, China
| | - Min Chen
- Department of Orthopedic, Fujian Medical University Union Hospital, Fuzhou, China
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Zhang L, Wu J, Zhu Z, He Y, Fang R. Mitochondrion: A bridge linking aging and degenerative diseases. Life Sci 2023; 322:121666. [PMID: 37030614 DOI: 10.1016/j.lfs.2023.121666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 03/30/2023] [Accepted: 04/01/2023] [Indexed: 04/10/2023]
Abstract
Aging is a natural process, characterized by progressive loss of physiological integrity, impaired function, and increased vulnerability to death. For centuries, people have been trying hard to understand the process of aging and find effective ways to delay it. However, limited breakthroughs have been made in anti-aging area. Since the hallmarks of aging were summarized in 2013, increasing studies focus on the role of mitochondrial dysfunction in aging and aging-related degenerative diseases, such as neurodegenerative diseases, osteoarthritis, metabolic diseases, and cardiovascular diseases. Accumulating evidence indicates that restoring mitochondrial function and biogenesis exerts beneficial effects in extending lifespan and promoting healthy aging. In this paper, we provide an overview of mitochondrial changes during aging and summarize the advanced studies in mitochondrial therapies for the treatment of degenerative diseases. Current challenges and future perspectives are proposed to provide novel and promising directions for future research.
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Affiliation(s)
- Lanlan Zhang
- Center for Plastic & Reconstructive Surgery, Department of Hand & Reconstructive Surgery, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Jianlong Wu
- Center for Plastic & Reconstructive Surgery, Department of Hand & Reconstructive Surgery, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Ziguan Zhu
- Center for Plastic & Reconstructive Surgery, Department of Hand & Reconstructive Surgery, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
| | - Yuchen He
- Department of Orthopaedic Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA 15219, USA; Department of Orthopaedics, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Renpeng Fang
- Center for Plastic & Reconstructive Surgery, Department of Hand & Reconstructive Surgery, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China.
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Gastrodin alleviates rat chondrocyte senescence and mitochondrial dysfunction through Sirt3. Int Immunopharmacol 2023; 118:110022. [PMID: 36933487 DOI: 10.1016/j.intimp.2023.110022] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 02/28/2023] [Accepted: 03/08/2023] [Indexed: 03/19/2023]
Abstract
Several researchers have focused on understanding the pathogenesis and treatment strategies for osteoarthritis (OA). Gastrodin (GAS) is a potential anti-inflammatory agent. In this study, we constructed an in vitro OA chondrocyte model by treating chondrocytes with IL-1β. Next, we determined the expression of aging-related markers and mitochondrial functions in chondrocytes treated with GAS. Further, we constructed a "drug-component-target-pathway-disease" interactive network and determined the effect of GAS on the functions and pathways related to OA. Finally, we constructed the OA rat model by removing the medial meniscus of the right knee and transection of the anterior cruciate ligament. The results revealed that GAS reduced senescence and improved mitochondrial functions in OA chondrocytes. We used network pharmacology and bioinformatics to screen for key molecules Sirt3 and the PI3K-AKT pathway involved in regulating the effect of GAS on OA. Further studies showed an increase in SIRT3 expression and reduced chondrocyte aging, mitochondrial damage, and the phosphorylation of the PI3K-AKT pathway. The results showed that GAS ameliorates pathological changes related to aging, increases SIRT3 expression, and protects the ECM in the OA rat model. These results were consistent with our bioinformatics results and previous studies. In summary, GAS slows down the aging of chondrocytes and mitochondrial damage in OA by regulating the phosphorylation of the PI3K-AKT pathway via SIRT3.
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Zhang P, Xiao J, Luo C, Liu X, Li C, Zhao J, Liu X, Pan X, Tian M. The Effect of the JAK-inhibitor Tofacitinib on Chondrocyte Autophagy in Osteoarthritis.. [DOI: 10.21203/rs.3.rs-2670470/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/28/2023]
Abstract
Abstract
Osteoarthritis (OA) is a multifactorial disease of the whole joint that has a complex pathogenesis. There is currently no cure for OA. Tofacitinib is a broad JAK inhibitor that can have an anti-inflammatory effect. The objective of this study was to investigate the effect of tofacitinib on the cartilage extracellular matrix in OA and determine whether tofacitinib exerts a protective effect by inhibiting the JAK1/STAT3 signaling pathway and upregulating autophagy in chondrocytes. We established an vitro OA model by exposing SW1353 cells to interleukin-1β (IL-1β) and induced OA in rats using the modified Hulth method. We found that IL-1β promoted the expression of OA-related matrix metalloproteinases (MMP-3 and MMP-13), reduced the expression of collagen II, reduced the expression of beclin1 and LC3-II/I, and promoted the accumulation of p62 in SW1353 cells. Tofacitinib attenuated IL-1β-stimulated changes in MMPs and collagen II and restored chondrocyte autophagy. In IL-1β-stimulated SW1353 cells, the JAK1/STAT3 signaling pathway was activated. Tofacitinib inhibited the IL-1β-stimulated expression of p-JAK1 and p-STAT3 and prevented translocation of p-STAT3 to the nucleus. In the rat model of OA, tofacitinib reduced articular cartilage degeneration by delaying cartilage extracellular matrix degradation and increasing chondrocyte autophagy. Our study demonstrates that chondrocyte autophagy was impaired in experimental models of OA. Tofacitinib reduced the inflammatory response and restored the damaged autophagic flux in OA.
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Affiliation(s)
- Ping Zhang
- Department of Rheumatology and Immunology, Affiliated Hospital of Zunyi Medical University
| | - Juan Xiao
- Department of Rheumatology and Immunology, Affiliated Hospital of Zunyi Medical University
| | - Chenggen Luo
- Department of Rheumatology and Immunology, Affiliated Hospital of Zunyi Medical University
| | - Xiaorui Liu
- Department of Rheumatology and Immunology, Affiliated Hospital of Zunyi Medical University
| | - Chunyan Li
- Department of Rheumatology and Immunology, Affiliated Hospital of Zunyi Medical University
| | - Jing Zhao
- Department of Rheumatology and Immunology, Affiliated Hospital of Zunyi Medical University
| | - Xu Liu
- Department of Rheumatology and Immunology, Peking University People’s Hospital
| | - Xiaoli Pan
- Department of Rheumatology and Immunology, Affiliated Hospital of Zunyi Medical University
| | - Mei Tian
- Department of Rheumatology and Immunology, Affiliated Hospital of Zunyi Medical University
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Liu W, Zhao X, Wu X. Duhuo Jisheng Decoction suppresses apoptosis and mitochondrial dysfunction in human nucleus pulposus cells by miR-494/SIRT3/mitophagy signal axis. J Orthop Surg Res 2023; 18:177. [PMID: 36890588 PMCID: PMC9996943 DOI: 10.1186/s13018-023-03669-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Accepted: 03/01/2023] [Indexed: 03/10/2023] Open
Abstract
BACKGROUND Increasing evidence suggests that mitophagy is responsible for the pathogenesis of intervertebral disk (IVD) degeneration. Previous studies have shown that Duhuo Jisheng Decoction (DHJSD), a classic Fangji of traditional Chinese medicine, can delay IVD degeneration; however, its specific mechanism of action is unknown. In this study, we investigated the mechanism by which DHJSD treatment prevented IVD degeneration in IL-1β-treated human nucleus pulposus (NP) cells in vitro. METHODS Cell Counting Kit-8 was performed to explore the effects of DHJSD on the viability of NP cells exposed to IL-1β. The mechanism by which DHJSD delays IVD degeneration was explored using luciferase reporter assay, RT-qPCR, western blotting, TUNEL assay, mitophagy detection assay, Mito-SOX, Mitotracker and in situ hybridization. RESULTS We observed that DHJSD enhanced the viability of NP cells treated with IL-1β in a concentration-time dependent approach. Moreover, DHJSD lessened IL-1β-induced NP apoptosis and mitochondrial dysfunction and activated mitophagy in NP cells treated with IL-1β. Mitophagy suppressor cyclosporin A reversed the beneficial impacts of DHJSD in NP cells. In addition, the differential expression of miR-494 regulated IL-1β-induced NP apoptosis and mitochondrial dysfunction, and the protective impact of miR-494 on NP cells treated with IL-1β was achieved by mitophagy activation, which was regulated by its target gene, sirtuin 3 (SIRT3). Finally, we observed that DHJSD treatment could effectively delay IL-1β-induced NP apoptosis by affecting the miR-494/SIRT3/mitophagy signal axis. CONCLUSIONS These results show that the miR-494/SIRT3/mitophagy signaling pathway is responsible for the apoptosis and mitochondrial dysfunction of NP cells and that DHJSD may exert protective effects against IVD degeneration by regulating the miR-494/SIRT3/mitophagy signal axis.
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Affiliation(s)
- Wei Liu
- Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.,Department of Orthopedics, First Hospital of Wuhan, Wuhan, 430022, China
| | - Xiaolong Zhao
- Department of Orthopedics, First Hospital of Wuhan, Wuhan, 430022, China.,Department of Burn and Repair Reconstruction Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Xuejian Wu
- Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
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Alimoradi N, Tahami M, Firouzabadi N, Haem E, Ramezani A. Metformin attenuates symptoms of osteoarthritis: role of genetic diversity of Bcl2 and CXCL16 in OA. Arthritis Res Ther 2023; 25:35. [PMID: 36879307 PMCID: PMC9990216 DOI: 10.1186/s13075-023-03025-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Accepted: 03/01/2023] [Indexed: 03/08/2023] Open
Abstract
OBJECTIVE This study aimed to evaluate the effectiveness of metformin versus placebo in overweight patients with knee osteoarthritis (OA). In addition, to assess the effects of inflammatory mediators and apoptotic proteins in the pathogenesis of OA, the genetic polymorphisms of two genes, one related to apoptosis (rs2279115 of Bcl-2) and the other related to inflammation (rs2277680 of CXCL-16), were investigated. METHODS In this double-blind placebo-controlled clinical trial, patients were randomly divided to two groups, one group receiving metformin (n = 44) and the other one receiving an identical inert placebo (n = 44) for 4 consecutive months (starting dose 0.5 g/day for the first week, increase to 1 g/day for the second week, and further increase to 1.5 g/day for the remaining period). Another group of healthy individuals (n = 92) with no history and diagnosis of OA were included in this study in order to evaluate the role of genetics in OA. The outcome of treatment regimen was evaluated using the Knee Injury and Osteoarthritis Outcome Score (KOOS) questionnaire. The frequency of variants of rs2277680 (A181V) and rs2279115 (938C>A) were determined in extracted DNAs using PCR-RFLP method. RESULTS Our results indicated an increase in scores of pain (P ≤ 0.0001), activity of daily living (ADL) (P ≤ 0.0001), sport and recreation (Sport/Rec) (P ≤ 0.0001), and quality of life (QOL) (P = 0.003) and total scores of the KOOS questionnaire in the metformin group compared to the placebo group. Susceptibility to OA was associated with age, gender, family history, CC genotype of 938C>A (Pa = 0.001; OR = 5.2; 95% CI = 2.0-13.7), and GG+GA genotypes of A181V (Pa = 0.04; OR = 2.1; 95% CI = 1.1-10.5). The C allele of 938C>A (Pa = 0.04; OR = 2.2; 95% CI = 1.1-9.8) and G allele of A181V (Pa = 0.02; OR = 2.2; 95% CI = 1.1-4.8) were also associated with OA. CONCLUSION Our findings support the possible beneficial effects of metformin on improving pain, ADL, Sport/Rec, and QOL in OA patients. Our findings support the association between the CC genotype of Bcl-2 and GG+GA genotypes of CXCL-16 and OA.
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Affiliation(s)
- Nahid Alimoradi
- Department of Pharmacology & Toxicology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Tahami
- Bone and Joint Disease Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Negar Firouzabadi
- Department of Pharmacology & Toxicology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Elham Haem
- Department of Biostatistics, Medical School, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Amin Ramezani
- Shiraz Institute for Cancer Research, School of Medicine, Shiraz University of Medical Science, Shiraz, Iran
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Jiang J, Li J, Xiong C, Zhou X, Liu T. Isorhynchophylline alleviates cartilage degeneration in osteoarthritis by activating autophagy of chondrocytes. J Orthop Surg Res 2023; 18:154. [PMID: 36864518 PMCID: PMC9979446 DOI: 10.1186/s13018-023-03645-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Accepted: 02/24/2023] [Indexed: 03/04/2023] Open
Abstract
CONTEXT Osteoarthritis is a common degenerative disease, the cause of it is still unknown, and the treatment mainly focuses on improving symptoms. Studies have found that Isorhynchophylline (Isorhy) has antioxidant, anti-inflammatory, antiproliferative and neuroprotective effects. OBJECTIVE This study investigates the role and mechanism of Isorhy in OA. METHODS The destabilized medial meniscus model was used to mimic OA. Fifteen male Sprague Dawley rats were partitioned into three portions: Normal group, OA group (surgery; normal saline treatment) and OA + Isorhy group (surgery; 50 μM Isorhy treatment) were performed on the first day of every week from the 5th to the 8th week after surgery. After 4 weeks of drug treatment, the rats have been processed without debridement of the knee specimens and fixed using 4% paraformaldehyde for two days. The morphological analysis was performed by H&E, Safranin O-Fast green staining and micro-CT analysis. The specimens were researched employing Micro-CT. In the part of the aggregate methods that were evaluated by qRT-PCR and western blot of the following proteins LC3II/LC3I, Beclin-1, ATG5, ATG7, MMP3 andMMP13. Akt/PI3K signaling related proteins (p-AKT, AKT, p-PI3K, PI3K, p-mTOR, mTOR) were detected by Western blot. BECLIN1 and MMP3 were detected by Immunofluorescence assay. RESULTS In this present research, it was proved that autophagy-related and cartilage matrix-related proteins in osteoarthritis could be regulated by Isorhynchophylline treatment. The transcriptome sequencing results suggested the regulation was closely associated with PI3K/AKT/mTOR pathway, thereby alleviating osteoarticular inflammation. In-depth study showed that Isorhy could also affect OA in rat OA models, that was indicated by H&E, Safranin O-Fast green staining, and also micro-CT analysis. CONCLUSION Our findings indicated that Isorhy could be regarded as a prospective candidate for OA treatment.
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Affiliation(s)
- Jieyun Jiang
- grid.411870.b0000 0001 0063 8301Medical Development Department, The Second Affiliated Hospital of Jiaxing University, Jiaxing, 314000 China
| | - Jin Li
- grid.411870.b0000 0001 0063 8301Department of Orthopedic Surgery, The Second Affiliated Hospital of Jiaxing University, Jiaxing, 314000 China
| | - Chenwei Xiong
- grid.89957.3a0000 0000 9255 8984Department of Orthopedics, The Affiliated Changzhou Second People’s Hospital of Nanjing Medical University, Changzhou, 213000 China ,grid.89957.3a0000 0000 9255 8984Changzhou Medical Center, Nanjing Medical University, Changzhou, 213000 China
| | - Xindie Zhou
- Department of Orthopedics, The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou, 213000, China. .,Changzhou Medical Center, Nanjing Medical University, Changzhou, 213000, China. .,Department of Orthopedics, Gonghe County Hospital of Traditional Chinese Medicine, Hainan Tibetan Autonomous Prefecture, 811800, Qinghai Province, China.
| | - Ting Liu
- Department of Orthopedics, The Affiliated Changzhou Second People's Hospital of Nanjing Medical University, Changzhou, 213000, China. .,Changzhou Medical Center, Nanjing Medical University, Changzhou, 213000, China.
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Zhang Z, He C, Bao C, Li Z, Jin W, Li C, Chen Y. MiRNA Profiling and Its Potential Roles in Rapid Growth of Velvet Antler in Gansu Red Deer ( Cervus elaphus kansuensis). Genes (Basel) 2023; 14:424. [PMID: 36833351 PMCID: PMC9957509 DOI: 10.3390/genes14020424] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 01/31/2023] [Accepted: 02/02/2023] [Indexed: 02/11/2023] Open
Abstract
A significant variety of cell growth factors are involved in the regulation of antler growth, and the fast proliferation and differentiation of various tissue cells occur during the yearly regeneration of deer antlers. The unique development process of velvet antlers has potential application value in many fields of biomedical research. Among them, the nature of cartilage tissue and the rapid growth and development process make deer antler a model for studying cartilage tissue development or rapid repair of damage. However, the molecular mechanisms underlying the rapid growth of antlers are still not well studied. MicroRNAs are ubiquitous in animals and have a wide range of biological functions. In this study, we used high-throughput sequencing technology to analyze the miRNA expression patterns of antler growth centers at three distinct growth phases, 30, 60, and 90 days following the abscission of the antler base, in order to determine the regulatory function of miRNA on the rapid growth of antlers. Then, we identified the miRNAs that were differentially expressed at various growth stages and annotated the functions of their target genes. The results showed that 4319, 4640, and 4520 miRNAs were found in antler growth centers during the three growth periods. To further identify the essential miRNAs that could regulate fast antler development, five differentially expressed miRNAs (DEMs) were screened, and the functions of their target genes were annotated. The results of KEGG pathway annotation revealed that the target genes of the five DEMs were significantly annotated to the "Wnt signaling pathway", "PI3K-Akt signaling pathway", "MAPK signaling pathway", and "TGF-β signaling pathway", which were associated with the rapid growth of velvet antlers. Therefore, the five chosen miRNAs, particularly ppy-miR-1, mmu-miR-200b-3p, and novel miR-94, may play crucial roles in rapid antler growth in summer.
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Affiliation(s)
- Zhenxiang Zhang
- Qinghai Provincial Key Laboratory of Adaptive Management on Alpine Grassland, Academy of Animal Science and Veterinary Medicine, Qinghai University, Xining 810016, China
- College of Eco–Environmental Engineering, Qinghai University, Xining 810016, China
| | - Caixia He
- College of Eco–Environmental Engineering, Qinghai University, Xining 810016, China
| | - Changhong Bao
- College of Eco–Environmental Engineering, Qinghai University, Xining 810016, China
| | - Zhaonan Li
- College of Eco–Environmental Engineering, Qinghai University, Xining 810016, China
| | - Wenjie Jin
- College of Eco–Environmental Engineering, Qinghai University, Xining 810016, China
| | - Changzhong Li
- College of Eco–Environmental Engineering, Qinghai University, Xining 810016, China
| | - Yanxia Chen
- College of Eco–Environmental Engineering, Qinghai University, Xining 810016, China
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