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Zou Z, Hu W, Kang F, Xu Z, Li Y, Zhang J, Li J, Zhang Y, Dong S. Interplay between lipid dysregulation and ferroptosis in chondrocytes and the targeted therapy effect of metformin on osteoarthritis. J Adv Res 2024:S2090-1232(24)00155-3. [PMID: 38621621 DOI: 10.1016/j.jare.2024.04.012] [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: 01/25/2024] [Revised: 04/03/2024] [Accepted: 04/13/2024] [Indexed: 04/17/2024] Open
Abstract
INTRODUCTION Osteoarthritis (OA) is a devastating whole-joint disease affecting a large population worldwide; the role of lipid dysregulation in OA and mechanisms underlying targeted therapy effect of lipid-lowering metformin on OA remains poorly defined. OBJECTIVES To investigate the effects of lipid dysregulation on OA progression and to explore lipid dysregulation-targeting OA treatment of metformin. METHODS RNA-Seq data, biochemical, and histochemical assays in human and murine OA cartilage as well as primary chondrocytes were utilized to determine lipid dysregulation. Effects of metformin, a potent lipid-lowering medication, on ACSL4 expression and chondrocyte metabolism were determined. Further molecular experiments, including RT-qPCR, western blotting, flow cytometry, and immunofluorescence staining, were performed to investigate underlying mechanisms. Mice with intra-articular injection of metformin were utilized to determine the effects on ACLT-induced OA progression. RESULTS ACSL4 and 4-HNE expressions were elevated in human and ACLT-induced mouse OA cartilage and IL-1β-treated chondrocytes (P < 0.05). Ferrostatin-1 largely rescued IL-1β-induced MDA, lipid peroxidation, and ferroptotic mitochondrial morphology (P < 0.05). Metformin decreased the levels of OA-related genes (P < 0.05) and increased the levels of p-AMPK and p-ACC in IL-1β-treated chondrocytes. Intra-articular injection of metformin alleviated ACLT-induced OA lesions in mice, and reverted the percentage of chondrocytes positive for MMP13, Col2a1, ACSL4 and 4-HNE in ACLT mice (P < 0.05). Ferroptotic chondrocytes promoted the recruitment and chemotaxis of RAW264.7 cells via CCL2, which was blocked by metformin in vitro (P < 0.05). CONCLUSION We establish a critical role of polyunsaturated fatty acids metabolic process in OA cartilage degradation and define metformin as a potential OA treatment. Metformin reshapes lipid availability and ameliorates chondrocyte ferroptosis sensitivity via the AMPK/ACC pathway. In the future, gene-edited animals and extensive omics technologies will be utilized to reveal detailed lipids' involvement in cartilage lesions.
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Affiliation(s)
- Zhi Zou
- College of Bioengineering, Chongqing University, Chongqing 400044, China; Department of Biomedical Materials Science, College of Biomedical Engineering, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Wenhui Hu
- Department of Biomedical Materials Science, College of Biomedical Engineering, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Fei Kang
- Department of Biomedical Materials Science, College of Biomedical Engineering, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Zhonghua Xu
- Joint Disease & Sport Medicine Center, Department of Orthopedics, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing 400037, China
| | - Yuheng Li
- Department of Biomedical Materials Science, College of Biomedical Engineering, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Jing Zhang
- College of Bioengineering, Chongqing University, Chongqing 400044, China
| | - Jianmei Li
- Department of Biomedical Materials Science, College of Biomedical Engineering, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Yuan Zhang
- Joint Disease & Sport Medicine Center, Department of Orthopedics, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing 400037, China.
| | - Shiwu Dong
- Department of Biomedical Materials Science, College of Biomedical Engineering, Third Military Medical University (Army Medical University), Chongqing 400038, China; State Key Laboratory of Trauma and Chemical Poisoning, Third Military Medical University (Army Medical University), Chongqing 400038, China.
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Papageorgiou AA, Roussos A, Papathanasiou I, Balis C, Karachalios T, Varitimidis SE, Malizos KN, Tsezou A. MiR-217 Regulates SIRT1 Expression and Promotes Inflammatory and Apoptotic Responses in Osteoarthritis. Genes (Basel) 2023; 14:2155. [PMID: 38136977 PMCID: PMC10742866 DOI: 10.3390/genes14122155] [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: 11/06/2023] [Revised: 11/23/2023] [Accepted: 11/24/2023] [Indexed: 12/24/2023] Open
Abstract
Previous studies have reported miR-217 uregulation in age-related pathologies. We investigated the impact of miR-217-5p on sirtuin 1 (SIRT1) regulation in human osteoarthritic (OA) chondrocytes. MiR-217 target enrichment analyses were performed using three public databases, Gene Ontology and Kyoto Encyclopedia of Genes and Genomes. MiR-217-5p expression levels were quantified in normal and OA chondrocytes. SIRT1 expression levels, nuclear factor kappa-B p65 subunit (NF-κBp65) and p53 acetylation levels, and expression levels of OA-related pro-inflammatory markers [tumor necrosis factor α (TNFα), interleukin 1β (IL-1β), IL-6], pro-apoptotic markers [Bax, pro-caspase 3, cleaved caspase 3] and matrix regulators [matrix metalloproteinase (MMP)-1, MMP-13, MMP-9, Collagen 2 (COL2A1), Aggrecan (ACAN)] were evaluated in miR-217 mimic-treated and/or miR-217 inhibitor-treated OA chondrocytes, with/without subsequent treatment with siRNA against SIRT1 (siSIRT1). MiR-217-5p was upregulated in OA chondrocytes, while target prediction/enrichment analyses revealed SIRT1 as miR-217 target-gene. Deacetylation of NF-κBp65 and p53 in miR-217 inhibitor-treated OA chondrocytes was reversed by siSIRT1 treatment. MiR-217 inhibitor-treated OA chondrocytes showed increased COL2A1, ACAN and decreased IL-1β, IL-6, TNFα, Bax, cleaved caspase 3 and MMPs expression levels, which were reversed following miR-217 inhibitor/siSIRT1 treatment. Our findings highlight the impact of miR-217-5p on SIRT1 downregulation contributing to OA pathogenesis.
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Affiliation(s)
- Aliki-Alexandra Papageorgiou
- Laboratory of Cytogenetics and Molecular Genetics, Faculty of Medicine, University of Thessaly, Biopolis, 41500 Larissa, Greece; (A.-A.P.); (A.R.); (I.P.); (C.B.)
| | - Athanasios Roussos
- Laboratory of Cytogenetics and Molecular Genetics, Faculty of Medicine, University of Thessaly, Biopolis, 41500 Larissa, Greece; (A.-A.P.); (A.R.); (I.P.); (C.B.)
| | - Ioanna Papathanasiou
- Laboratory of Cytogenetics and Molecular Genetics, Faculty of Medicine, University of Thessaly, Biopolis, 41500 Larissa, Greece; (A.-A.P.); (A.R.); (I.P.); (C.B.)
- Department of Biology, Faculty of Medicine, University of Thessaly, Biopolis, 41500 Larissa, Greece
| | - Charalampos Balis
- Laboratory of Cytogenetics and Molecular Genetics, Faculty of Medicine, University of Thessaly, Biopolis, 41500 Larissa, Greece; (A.-A.P.); (A.R.); (I.P.); (C.B.)
| | - Theophilos Karachalios
- Department of Orthopedic Surgery, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, 41500 Larissa, Greece; (T.K.); (S.E.V.); (K.N.M.)
| | - Sokratis E. Varitimidis
- Department of Orthopedic Surgery, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, 41500 Larissa, Greece; (T.K.); (S.E.V.); (K.N.M.)
| | - Konstantinos N. Malizos
- Department of Orthopedic Surgery, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, 41500 Larissa, Greece; (T.K.); (S.E.V.); (K.N.M.)
| | - Aspasia Tsezou
- Laboratory of Cytogenetics and Molecular Genetics, Faculty of Medicine, University of Thessaly, Biopolis, 41500 Larissa, Greece; (A.-A.P.); (A.R.); (I.P.); (C.B.)
- Department of Biology, Faculty of Medicine, University of Thessaly, Biopolis, 41500 Larissa, Greece
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Afshari H, Noori S, Zarghi A. A novel combination of metformin and resveratrol alleviates hepatic steatosis by activating autophagy through the cAMP/AMPK/SIRT1 signaling pathway. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2023; 396:3135-3148. [PMID: 37209153 DOI: 10.1007/s00210-023-02520-7] [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: 02/08/2023] [Accepted: 05/03/2023] [Indexed: 05/22/2023]
Abstract
Nonalcoholic fatty liver disease (NAFLD) is a prevalent liver disorder that is associated with the accumulation of triglycerides (TG) in hepatocytes. Resveratrol (RSV), as a natural product, and metformin have been reported to have potential lipid-lowering effects for the treatment of NAFLD via autophagy, but the combined effects of both have not yet been studied. The current study aimed to investigate the role of autophagy in the lipid-lowering effects of RSV, alone and in combination with metformin, on the hepatic steatosis model of HepG2 cells and elucidate the mechanism of action. Triglyceride measurement and real-time PCR showed that RSV-metformin reduced lipid accumulation and the expression of lipogenic genes in palmitic acid (PA)-induced HepG2 cells. Additionally, the LDH release assay indicated that this combination protected HepG2 cells against PA-induced cell death through autophagy. The western blotting analysis revealed that RSV-metformin induced autophagy by reducing the expression of p62 and increasing LC3-I and LC3-II proteins. This combination also enhanced cAMP, phosphorylated AMP-activated protein kinase (p-AMPK), and Beclin-1 levels in HepG2 cells. Furthermore, SIRT1 inhibitor treatment inhibited autophagy induced by RSV-metformin, which indicated the autophagy induction is SIRT1-dependent. This study demonstrated for the first time that RSV-metformin reduced hepatic steatosis by triggering autophagy via the cAMP/AMPK/SIRT1 signaling pathway.
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Affiliation(s)
- Havva Afshari
- Department of Biochemistry, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Shokoofe Noori
- Department of Biochemistry, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Afshin Zarghi
- Department of Pharmaceutical Chemistry, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Liu S, Yao S, Yang H, Liu S, Wang Y. Autophagy: Regulator of cell death. Cell Death Dis 2023; 14:648. [PMID: 37794028 PMCID: PMC10551038 DOI: 10.1038/s41419-023-06154-8] [Citation(s) in RCA: 40] [Impact Index Per Article: 40.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 09/05/2023] [Accepted: 09/14/2023] [Indexed: 10/06/2023]
Abstract
Autophagy is the process by which cells degrade and recycle proteins and organelles to maintain intracellular homeostasis. Generally, autophagy plays a protective role in cells, but disruption of autophagy mechanisms or excessive autophagic flux usually leads to cell death. Despite recent progress in the study of the regulation and underlying molecular mechanisms of autophagy, numerous questions remain to be answered. How does autophagy regulate cell death? What are the fine-tuned regulatory mechanisms underlying autophagy-dependent cell death (ADCD) and autophagy-mediated cell death (AMCD)? In this article, we highlight the different roles of autophagy in cell death and discuss six of the main autophagy-related cell death modalities, with a focus on the metabolic changes caused by excessive endoplasmic reticulum-phagy (ER-phagy)-induced cell death and the role of mitophagy in autophagy-mediated ferroptosis. Finally, we discuss autophagy enhancement in the treatment of diseases and offer a new perspective based on the use of autophagy for different functional conversions (including the conversion of autophagy and that of different autophagy-mediated cell death modalities) for the clinical treatment of tumors.
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Affiliation(s)
- ShiZuo Liu
- School of Basic Medical Sciences, Xinjiang Medical University, Urumqi, China
| | - ShuaiJie Yao
- School of Basic Medical Sciences, Xinjiang Medical University, Urumqi, China
| | - Huan Yang
- The Second School of Clinical Medicine, Xinjiang Medical University, Urumqi, China
| | - ShuaiJie Liu
- School of Basic Medical Sciences, Xinjiang Medical University, Urumqi, China
| | - YanJiao Wang
- Xinjiang Key Laboratory of Molecular Biology for Endemic Diseases, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xinjiang Medical University, Urumqi, China.
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Su J, Yu M, Wang H, Wei Y. Natural anti-inflammatory products for osteoarthritis: From molecular mechanism to drug delivery systems and clinical trials. Phytother Res 2023; 37:4321-4352. [PMID: 37641442 DOI: 10.1002/ptr.7935] [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: 03/07/2023] [Revised: 06/19/2023] [Accepted: 06/21/2023] [Indexed: 08/31/2023]
Abstract
Osteoarthritis (OA) is a degenerative joint disease that affects millions globally. The present nonsteroidal anti-inflammatory drug treatments have different side effects, leading researchers to focus on natural anti-inflammatory products (NAIPs). To review the effectiveness and mechanisms of NAIPs in the cellular microenvironment, examining their impact on OA cell phenotype and organelles levels. Additionally, we summarize relevant research on drug delivery systems and clinical randomized controlled trials (RCTs), to promote clinical studies and explore natural product delivery options. English-language articles were searched on PubMed using the search terms "natural products," "OA," and so forth. We categorized search results based on PubChem and excluded "natural products" which are mix of ingredients or compounds without the structure message. Then further review was separately conducted for molecular mechanisms, drug delivery systems, and RCTs later. At present, it cannot be considered that NAIPs can thoroughly prevent or cure OA. Further high-quality studies on the anti-inflammatory mechanism and drug delivery systems of NAIPs are needed, to determine the appropriate drug types and regimens for clinical application, and to explore the combined effects of different NAIPs to prevent and treat OA.
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Affiliation(s)
- Jianbang Su
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Minghao Yu
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Haochen Wang
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yingliang Wei
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, China
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Liu Y, Zhang Z, Liu C, Zhang H. Sirtuins in osteoarthritis: current understanding. Front Immunol 2023; 14:1140653. [PMID: 37138887 PMCID: PMC10150098 DOI: 10.3389/fimmu.2023.1140653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 03/27/2023] [Indexed: 05/05/2023] Open
Abstract
Osteoarthritis (OA) is a common disease characterized by severe chronic joint pain, that imposes a large burden on elderly people. OA is a highly heterogeneous disease, and multiple etiologies contribute to its progression. Sirtuins (SIRTs) are Class III histone deacetylases (HDACs) that regulate a comprehensive range of biological processes such as gene expression, cell differentiation, and organism development, and lifespan. Over the past three decades, increasing evidence has revealed that SIRTs are not only important energy sensors but also protectors against metabolic stresses and aging, and an increasing number of studies have focused on the functions of SIRTs in OA pathogenesis. In this review, we illustrate the biological functions of SIRTs in OA pathogenesis from the perspectives of energy metabolism, inflammation, autophagy and cellular senescence. Moreover, we offer insights into the role played by SIRTs in regulating circadian rhythm, which has recently been recognized to be crucial in OA development. Here, we provide the current understanding of SIRTs in OA to guide a new direction for OA treatment exploration.
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Sun K, Wu Y, Zeng Y, Xu J, Wu L, Li M, Shen B. The role of the sirtuin family in cartilage and osteoarthritis: molecular mechanisms and therapeutic targets. Arthritis Res Ther 2022; 24:286. [PMID: 36585687 PMCID: PMC9805245 DOI: 10.1186/s13075-022-02983-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 12/20/2022] [Indexed: 01/01/2023] Open
Abstract
Osteoarthritis (OA) is mainly characterized by the progressive destruction of articular cartilage. Mounting studies have revealed that disruption of extracellular matrix (ECM) homeostasis, aberrant chondrocyte metabolism, an increase in the number of senescent chondrocytes and abnormal activation of cell death such as chondrocyte apoptosis and autophagy, are the crucial steps in OA development. Additionally, mitochondrial dysfunction also participates in the abovementioned processes and is the key element of OA pathogenesis. Sirtuin (SIRT) is a family of nicotinamide adenine dinucleotide (NAD+)-dependent protein deacetylases that can actively participate and primarily regulate chondrocyte function in OA pathophysiological processes. Some members of the SIRT family located in mitochondria can regulate mitochondrial function and mediate mitochondrial homeostasis via deacetylation to protect chondrocytes. In addition, SIRT can maintain ECM homeostasis, regulate chondrocyte metabolism, inhibit chondrocyte apoptosis and autophagy, and prevent chondrocyte senescence in cartilage by exerting its deacetylation activity. However, the molecular mechanism of the SIRT family against the onset and development of OA remains poorly elucidated. In this review, we will discuss the potential protective role of SIRT in the progression of OA and summarize several sirtuin-activating molecules as well as their potential therapeutic applications for OA.
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Affiliation(s)
- Kaibo Sun
- grid.412901.f0000 0004 1770 1022Department of Orthopedics Surgery, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, 610041 Sichuan China
| | - Yuangang Wu
- grid.412901.f0000 0004 1770 1022Department of Orthopedics Surgery, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, 610041 Sichuan China
| | - Yi Zeng
- grid.412901.f0000 0004 1770 1022Department of Orthopedics Surgery, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, 610041 Sichuan China
| | - Jiawen Xu
- grid.412901.f0000 0004 1770 1022Department of Orthopedics Surgery, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, 610041 Sichuan China
| | - Limin Wu
- grid.412901.f0000 0004 1770 1022Department of Orthopedics Surgery, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, 610041 Sichuan China
| | - Mingyang Li
- grid.412901.f0000 0004 1770 1022Department of Orthopedics Surgery, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, 610041 Sichuan China
| | - Bin Shen
- grid.412901.f0000 0004 1770 1022Department of Orthopedics Surgery, Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, 610041 Sichuan China
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