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Li Y, Pan J, Yu JJJ, Wu X, Yang G, Pan X, Sui G, Wang M, Cheng M, Zhu S, Tai H, Xiao H, Xu L, Wu J, Yang Y, Tang J, Gong L, Jia L, Min D. Huayu Qutan Recipe promotes lipophagy and cholesterol efflux through the mTORC1/TFEB/ABCA1-SCARB1 signal axis. J Cell Mol Med 2024; 28:e18257. [PMID: 38526033 PMCID: PMC10962127 DOI: 10.1111/jcmm.18257] [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: 08/17/2023] [Revised: 02/01/2024] [Accepted: 02/14/2024] [Indexed: 03/26/2024] Open
Abstract
This study aims to investigate the mechanism of the anti-atherosclerosis effect of Huayu Qutan Recipe (HYQT) on the inhibition of foam cell formation. In vivo, the mice were randomly divided into three groups: CTRL group, MOD group and HYQT group. The HYQT group received HYQT oral administration twice a day (20.54 g/kg/d), and the plaque formation in ApoE-/- mice was observed using haematoxylin-eosin (HE) staining and oil red O (ORO) staining. The co-localization of aortic macrophages and lipid droplets (LDs) was examined using fluorescent labelling of CD11b and BODIPY fluorescence probe. In vitro, RAW 264.7 cells were exposed to 50 μg/mL ox-LDL for 48 h and then treated with HYQT for 24 h. The accumulation of LDs was evaluated using ORO and BODIPY. Cell viability was assessed using the CCK-8 assay. The co-localization of LC3b and BODIPY was detected via immunofluorescence and fluorescence probe. LysoTracker Red and BODIPY 493/503 were used as markers for lysosomes and LDs, respectively. Autophagosome formation were observed via transmission electron microscopy. The levels of LC3A/B II/LC3A/B I, p-mTOR/mTOR, p-4EBP1/4EBP1, p-P70S6K/P70S6K and TFEB protein level were examined via western blotting, while SQSTM1/p62, Beclin1, ABCA1, ABCG1 and SCARB1 were examined via qRT-PCR and western blotting. The nuclear translocation of TFEB was detected using immunofluorescence. The components of HYQT medicated serum were determined using Q-Orbitrap high-resolution MS analysis. Molecular docking was employed to identify the components of HYQT medicated serum responsible for the mTOR signalling pathway. The mechanism of taurine was illustrated. HYQT has a remarkable effect on atherosclerotic plaque formation and blood lipid level in ApoE-/- mice. HYQT decreased the co-localization of CD11b and BODIPY. HYQT (10% medicated serum) reduced the LDs accumulation in RAW 264.7 cells. HYQT and RAPA (rapamycin, a mTOR inhibitor) could promote cholesterol efflux, while chloroquine (CQ, an autophagy inhibitor) weakened the effect of HYQT. Moreover, MHY1485 (a mTOR agonist) also mitigated the effects of HYQT by reduced cholesterol efflux. qRT-PCR and WB results suggested that HYQT improved the expression of the proteins ABCA1, ABCG1 and SCARB1.HYQT regulates ABCA1 and SCARB1 protein depending on the mTORC1/TFEB signalling pathway. However, the activation of ABCG1 does not depend on this pathway. Q-Orbitrap high-resolution MS analysis results demonstrated that seven core compounds have good binding ability to the mTOR protein. Taurine may play an important role in the mechanism regulation. HYQT may reduce cardiovascular risk by promoting cholesterol efflux and degrading macrophage-derived foam cell formation. It has been observed that HYQT and ox-LDL regulate lipophagy through the mTOR/TFEB signalling pathway, rather than the mTOR/4EBP1/P70S6K pathway. Additionally, HYQT is found to regulate cholesterol efflux through the mTORC1/TFEB/ABCA1-SCARB1 signal axis, while taurine plays a significant role in lipophagy.
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Affiliation(s)
- Yue Li
- Department of Cardiologythe Affiliated Hospital of Liaoning University of Traditional Chinese MedicineShenyangChina
- Liaoning Provincial Key Laboratory of TCM Geriatric Cardio‐Cerebrovascular DiseasesShenyangChina
| | - Jiaxiang Pan
- Department of Cardiologythe Affiliated Hospital of Liaoning University of Traditional Chinese MedicineShenyangChina
- Graduate School of Liaoning University of Traditional Chinese MedicineShenyangChina
| | - J. J. Jiajia Yu
- Postdoctoral Program of Liaoning University of Traditional Chinese MedicineShenyangChina
| | - Xize Wu
- Graduate School of Liaoning University of Traditional Chinese MedicineShenyangChina
- Nantong Hospital of Traditional Chinese MedicineNantong Hospital Affiliated to Nanjing University of Chinese MedicineNantongChina
| | - Guanlin Yang
- Innovation Engineering Technology Center of Traditional Chinese MedicineLiaoning University of Traditional Chinese MedicineShenyangChina
| | - Xue Pan
- Graduate School of Liaoning University of Traditional Chinese MedicineShenyangChina
- Dazhou Vocational College of Chinese MedicineDazhouChina
| | - Guoyuan Sui
- Innovation Engineering Technology Center of Traditional Chinese MedicineLiaoning University of Traditional Chinese MedicineShenyangChina
| | - Mingyang Wang
- College of Animal Science and Veterinary Medicine of Shenyang Agricultural UniversityShenyangChina
| | - Meijia Cheng
- Experimental Center of Traditional Chinese Medicinethe Affiliated Hospital of Liaoning University of Traditional Chinese MedicineShenyangChina
| | - Shu Zhu
- Department of Paediatric Dentistry, School of StomatologyChina Medical UniversityShenyangChina
| | - He Tai
- School of PharmacyLiaoning University of Traditional Chinese MedicineDalianChina
| | - Honghe Xiao
- School of PharmacyLiaoning University of Traditional Chinese MedicineDalianChina
| | - Lili Xu
- Department of Cardiology, 924 Hospital of Joint Logistic Support Force of PLAGuilinChina
| | - Jin Wu
- Innovation Engineering Technology Center of Traditional Chinese MedicineLiaoning University of Traditional Chinese MedicineShenyangChina
| | - Yongju Yang
- Experimental Center of Traditional Chinese Medicinethe Affiliated Hospital of Liaoning University of Traditional Chinese MedicineShenyangChina
| | - Jing Tang
- Department of Cardiologythe Affiliated Hospital of Liaoning University of Traditional Chinese MedicineShenyangChina
| | - Lihong Gong
- Department of Cardiologythe Affiliated Hospital of Liaoning University of Traditional Chinese MedicineShenyangChina
- Liaoning Provincial Key Laboratory of TCM Geriatric Cardio‐Cerebrovascular DiseasesShenyangChina
| | - Lianqun Jia
- Innovation Engineering Technology Center of Traditional Chinese MedicineLiaoning University of Traditional Chinese MedicineShenyangChina
| | - Dongyu Min
- Experimental Center of Traditional Chinese Medicinethe Affiliated Hospital of Liaoning University of Traditional Chinese MedicineShenyangChina
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Wen W, Zheng H, Li W, Huang G, Chen P, Zhu X, Cao Y, Li J, Huang X, Huang Y. Transcription factor EB: A potential integrated network regulator in metabolic-associated cardiac injury. Metabolism 2023; 147:155662. [PMID: 37517793 DOI: 10.1016/j.metabol.2023.155662] [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: 04/11/2023] [Revised: 07/19/2023] [Accepted: 07/21/2023] [Indexed: 08/01/2023]
Abstract
With the worldwide pandemic of metabolic diseases, such as obesity, diabetes, and non-alcoholic fatty liver disease (NAFLD), cardiometabolic disease (CMD) has become a significant cause of death in humans. However, the pathophysiology of metabolic-associated cardiac injury is complex and not completely clear, and it is important to explore new strategies and targets for the treatment of CMD. A series of pathophysiological disturbances caused by metabolic disorders, such as insulin resistance (IR), hyperglycemia, hyperlipidemia, mitochondrial dysfunction, oxidative stress, inflammation, endoplasmic reticulum stress (ERS), autophagy dysfunction, calcium homeostasis imbalance, and endothelial dysfunction, may be related to the incidence and development of CMD. Transcription Factor EB (TFEB), as a transcription factor, has been extensively studied for its role in regulating lysosomal biogenesis and autophagy. Recently, the regulatory role of TFEB in other biological processes, including the regulation of glucose homeostasis, lipid metabolism, etc. has been gradually revealed. In this review, we will focus on the relationship between TFEB and IR, lipid metabolism, endothelial dysfunction, oxidative stress, inflammation, ERS, calcium homeostasis, autophagy, and mitochondrial quality control (MQC) and the potential regulatory mechanisms among them, to provide a comprehensive summary for TFEB as a potential new therapeutic target for CMD.
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Affiliation(s)
- Weixing Wen
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China; Medical Research Center, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China
| | - Haoxiao Zheng
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China; Medical Research Center, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China.
| | - Weiwen Li
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China; Medical Research Center, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China
| | - Guolin Huang
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China; Medical Research Center, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China
| | - Peng Chen
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China; Medical Research Center, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China
| | - Xiaolin Zhu
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China; Medical Research Center, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China.
| | - Yue Cao
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China; Medical Research Center, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China
| | - Jiahuan Li
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China; Medical Research Center, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China
| | - Xiaohui Huang
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China; Medical Research Center, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China
| | - Yuli Huang
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China; The George Institute for Global Health, Faculty of Medicine, University of New South Wales, Sydney, Australia; Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation Research, Guangzhou, China; Medical Research Center, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China.
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Miceli C, Leri M, Stefani M, Bucciantini M. Autophagy-related proteins: Potential diagnostic and prognostic biomarkers of aging-related diseases. Ageing Res Rev 2023; 89:101967. [PMID: 37270146 DOI: 10.1016/j.arr.2023.101967] [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: 03/16/2023] [Revised: 05/19/2023] [Accepted: 05/31/2023] [Indexed: 06/05/2023]
Abstract
Autophagy plays a key role in cellular, tissue and organismal homeostasis and in the production of the energy load needed at critical times during development and in response to nutrient shortage. Autophagy is generally considered as a pro-survival mechanism, although its deregulation has been linked to non-apoptotic cell death. Autophagy efficiency declines with age, thus contributing to many different pathophysiological conditions, such as cancer, cardiomyopathy, diabetes, liver disease, autoimmune diseases, infections, and neurodegeneration. Accordingly, it has been proposed that the maintenance of a proper autophagic activity contributes to the extension of the lifespan in different organisms. A better understanding of the interplay between autophagy and risk of age-related pathologies is important to propose nutritional and life-style habits favouring disease prevention as well as possible clinical applications aimed at promoting long-term health.
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Affiliation(s)
- Caterina Miceli
- Telethon Institute of Genetics and Medicine (TIGEM), Naples, Italy
| | - Manuela Leri
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Florence, Italy
| | - Massimo Stefani
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Florence, Italy
| | - Monica Bucciantini
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Florence, Italy.
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Zhang W, Yan C, Xiao Y, Sun Y, Lin Y, Li Q, Cai W. Sulfasalazine induces autophagy inhibiting neointimal hyperplasia following carotid artery injuries in mice. Front Bioeng Biotechnol 2023; 11:1199785. [PMID: 37288359 PMCID: PMC10242098 DOI: 10.3389/fbioe.2023.1199785] [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: 04/04/2023] [Accepted: 05/05/2023] [Indexed: 06/09/2023] Open
Abstract
Background: Neointimal hyperplasia (NH) is a crucial pathophysiological feature in vascular transplant and in-stent restenosis. Excessive proliferation and migration of vascular smooth muscle cells (VSMCs) play important roles in neointimal hyperplasia. This study aims to explore the potentialities and mechanism of sulfasalazine (SSZ) in the prevention of restenosis. Methods: Sulfasalazine was encapsulated in nanoparticles made of poly (lactic-co-glycolic acid) (PLGA). In vivo, carotid ligation injury was induced in mice to induce Neointimal hyperplasia, with or without sulfasalazine containing nanoparticles (NP-SSZ) treatment. After 4 weeks, the arteries were collected for histology, immunofluorescence, Western blotting (WB) and qRT-PCR. In vitro, vascular smooth muscle cells were treated with TNF-α to induce cell proliferation and migration, followed by SSZ or vehicle treatment. WB was performed to further explore its mechanism. Results: The ratio of intima to media thickness (I/M) was increased after ligation injury on day 28, while the ratio was significantly reduced in the NP-SSZ treatment group. The dual positive nuclei of Ki-67 and α-SMA were 47.83% ± 9.15%, whereas only 29.83% ± 5.98% in the NP-SSZ-treated group (p < 0.05). Both MMP-2 and MMP-9 were decreased in the NP-SSZ treatment group (p < 0.05, p < 0.05, respectively) compared to the control group. The levels of the targeted inflammatory genes (TNF-α, VCAM-1, ICAM-1, MCP-1) were lower in the NP-SSZ treatment group compared with the control group. In vitro, the proliferating cell nuclear antigen (PCNA) expression was significantly decreased in the SSZ treatment group. The cell viability of VSMCs was markedly increased in the TNF-α treatment group, whereas sulfasalazine treatment inhibited this effect. LC3 II and P62 protein expression were higher in the SSZ group than in the vehicle group both in vitro and in vivo. The phosphorylation of NF-kB (p-NF-kB) and the phosphorylation of mTOR (p-mTOR) were decreased in the TNF-α+ SSZ group, whereas the P62 and LC3 II expression levels were increased. However, the expression level of p-mTOR, P62, and LC3 II was reversed after co-treatment with the agonist of mTOR MHY1485, whereas the p-NF-kB expression level was unchanged. Conclusion: sulfasalazine inhibited vascular smooth muscle cells proliferation and migration in vitro and Neointimal hyperplasia in vivo through NF-kB/mTOR-mediated autophagy.
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Affiliation(s)
- Weichang Zhang
- Department of Vascular Surgery, Second Xiangya Hospital, Central South University, Changsha, China
- Department of General Surgery, Second Xiangya Hospital, Central South University, Changsha, China
| | - Cheng Yan
- Department of General Surgery, Second Xiangya Hospital, Central South University, Changsha, China
| | - Yangyan Xiao
- Department of Ophthalmology, Second Xiangya Hospital, Central South University, Changsha, China
| | - Yuxin Sun
- Department of General Surgery, Second Xiangya Hospital, Central South University, Changsha, China
| | - Youjun Lin
- Department of General Surgery, Second Xiangya Hospital, Central South University, Changsha, China
| | - Qinglong Li
- Department of General Surgery, Second Xiangya Hospital, Central South University, Changsha, China
| | - Wenwu Cai
- Department of General Surgery, Second Xiangya Hospital, Central South University, Changsha, China
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Gebrie A. Transcription factor EB as a key molecular factor in human health and its implication in diseases. SAGE Open Med 2023; 11:20503121231157209. [PMID: 36891126 PMCID: PMC9986912 DOI: 10.1177/20503121231157209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 01/27/2023] [Indexed: 03/07/2023] Open
Abstract
Transcription factor EB, as a component of the microphthalmia family of transcription factors, has been demonstrated to be a key controller of autophagy-lysosomal biogenesis. Transcription factor EB is activated by stressors such as nutrition and deprivation of growth factors, hypoxia, lysosomal stress, and mitochondrial injury. To achieve the ultimate functional state, it is controlled in a variety of modes, such as in its rate of transcription, post-transcriptional control, and post-translational alterations. Due to its versatile role in numerous signaling pathways, including the Wnt, calcium, AKT, and mammalian target of rapamycin complex 1 signaling pathways, transcription factor EB-originally identified to be an oncogene-is now well acknowledged as a regulator of a wide range of physiological systems, including autophagy-lysosomal biogenesis, response to stress, metabolism, and energy homeostasis. The well-known and recently identified roles of transcription factor EB suggest that this protein might play a central role in signaling networks in a number of non-communicable illnesses, such as cancer, cardiovascular disorders, drug resistance mechanisms, immunological disease, and tissue growth. The important developments in transcription factor EB research since its first description are described in this review. This review helps to advance transcription factor EB from fundamental research into therapeutic and regenerative applications by shedding light on how important a role it plays in human health and disease at the molecular level.
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Affiliation(s)
- Alemu Gebrie
- Department of Biomedical Sciences, School of Medicine, Debre Markos University, Debre Markos, Ethiopia
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Hong Q, Que D, Zhong C, Huang G, Zhai W, Chen D, Yan J, Yang P. Trimethylamine-N-oxide (TMAO) promotes balloon injury-induced neointimal hyperplasia via upregulating Beclin1 and impairing autophagic flux. Biomed Pharmacother 2022; 155:113639. [PMID: 36088853 DOI: 10.1016/j.biopha.2022.113639] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 08/25/2022] [Accepted: 08/30/2022] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND AND AIMS TMAO is a microbiota-dependent metabolite associated with increased risk of various cardiovascular diseases. However, the relationship between TMAO and vascular injury-related neointimal hyperplasia is unclear. This study aimed to explore whether TMAO promotes neointimal hyperplasia after balloon injury and elucidate the underlying mechanism. METHODS AND RESULTS Through hematoxylin and eosin staining and immunohistochemistry staining, we found that supplementary TMAO promoted balloon injury-induced neointimal hyperplasia, while reducing TMAO by antibiotic administration produced the opposite result. TMAO showed limited effect on rat aortic vascular smooth muscle cells (RAOSMCs) proliferation and migration. However, TMAO notably induced dysfunction of rat aortic vascular endothelial cells (RAOECs) in vitro and attenuated reendothelialization of carotid arteries after balloon injury in vivo. Autophagic flux was measured by fluorescent mRFP-GFP-LC3, transmission electron microscopy, and western blot. TMAO impaired autophagic flux, as evidenced by the accumulation of p62 and LC3II and high autophagosome to autolysosome ratios. Furthermore, we confirmed that Beclin1 level increased in TMAO-treated RAOECs and carotid arteries. Knocking down Beclin1 alleviated TMAO-induced autophagic flux impairment and neointimal hyperplasia. CONCLUSIONS TMAO promoted neointimal hyperplasia through Beclin1-induced autophagic flux blockage, suggesting that TMAO is a potential target for improvement of vascular remodeling after injury.
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Affiliation(s)
- Qingqing Hong
- Department of Cardiology, Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China; Heart Center of Zhujiang Hospital, Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Guangzhou, Guangdong, China; Heart Center of Zhujiang Hospital, Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Guangzhou, Guangdong, China
| | - Dongdong Que
- Department of Cardiology, Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China; Heart Center of Zhujiang Hospital, Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Guangzhou, Guangdong, China; Heart Center of Zhujiang Hospital, Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Guangzhou, Guangdong, China
| | - Chongbin Zhong
- Department of Cardiology, Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China; Heart Center of Zhujiang Hospital, Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Guangzhou, Guangdong, China; Heart Center of Zhujiang Hospital, Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Guangzhou, Guangdong, China
| | - Guanlin Huang
- Department of Cardiology, Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China; Heart Center of Zhujiang Hospital, Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Guangzhou, Guangdong, China; Heart Center of Zhujiang Hospital, Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Guangzhou, Guangdong, China
| | - Weicheng Zhai
- Department of Cardiology, Huizhou Third People's Hospital, Guangzhou Medical University, Huizhou City, China
| | - Deshu Chen
- Department of Cardiology, Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China; Heart Center of Zhujiang Hospital, Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Guangzhou, Guangdong, China; Heart Center of Zhujiang Hospital, Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Guangzhou, Guangdong, China
| | - Jing Yan
- Department of Cardiology, Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China; Heart Center of Zhujiang Hospital, Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Guangzhou, Guangdong, China; Heart Center of Zhujiang Hospital, Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Guangzhou, Guangdong, China.
| | - Pingzhen Yang
- Department of Cardiology, Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China; Heart Center of Zhujiang Hospital, Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Guangzhou, Guangdong, China; Heart Center of Zhujiang Hospital, Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Guangzhou, Guangdong, China.
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Pupyshev AB, Klyushnik TP, Akopyan AA, Singh SK, Tikhonova MA. Disaccharide Trehalose in Experimental Therapies for Neurodegenerative Disorders: Molecular Targets and Translational Potential. Pharmacol Res 2022; 183:106373. [PMID: 35907433 DOI: 10.1016/j.phrs.2022.106373] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 07/23/2022] [Accepted: 07/26/2022] [Indexed: 10/16/2022]
Abstract
Induction of autophagy is a prospective approach to the treatment of neurodegeneration. In the recent decade, trehalose attracted special attention. It is an autophagy inducer with negligible adverse effects and is approved for use in humans according to FDA requirements. Trehalose has a therapeutic effect in various experimental models of diseases. This glucose disaccharide with a flexible α-1-1'-glycosidic bond has unique properties: induction of mTOR-independent autophagy (with kinase AMPK as the main target) and a chaperone-like effect on proteins imparting them natural spatial structure. Thus, it can reduce the accumulation of neurotoxic aberrant/misfolded proteins. Trehalose has an anti-inflammatory effect and inhibits detrimental oxidative stress partially owing to the enhancement of endogenous antioxidant defense represented by the Nrf2 protein. The disaccharide activates lysosome and autophagosome biogenesis pathways through the protein factors TFEB and FOXO1. Here we review various mechanisms of the neuroprotective action of trehalose and touch on the possibility of pleiotropic effects. Current knowledge about specific features of trehalose pharmacodynamics is discussed. The neuroprotective effects of trehalose in animal models of major neurodegenerative disorders such as Alzheimer's, Parkinson's, and Huntington's diseases are examined too. Attention is given to translational transition to clinical trials of this drug, especially oral and parenteral routes of administration. Besides, the possibility of enhancing the therapeutic benefit via a combination of mTOR-dependent and mTOR-independent autophagy inducers is analyzed. In general, trehalose appears to be a promising multitarget tool for the inhibition of experimental neurodegeneration and requires thorough investigation of its clinical capabilities.
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Affiliation(s)
- Alexander B Pupyshev
- Scientific Research Institute of Neurosciences and Medicine (SRINM); Timakova Str. 4, Novosibirsk 630117, Russia.
| | - Tatyana P Klyushnik
- Mental Health Research Center, Kashirskoye shosse 34, Moscow 115522, Russia.
| | - Anna A Akopyan
- Scientific Research Institute of Neurosciences and Medicine (SRINM); Timakova Str. 4, Novosibirsk 630117, Russia.
| | - Sandeep Kumar Singh
- Indian Scientific Education and Technology Foundation, Krishna Bhawan, 594 Kha/123, Shahinoor Colony, Nilmatha, Uttar Pradesh, Lucknow 226002, India.
| | - Maria A Tikhonova
- Scientific Research Institute of Neurosciences and Medicine (SRINM); Timakova Str. 4, Novosibirsk 630117, Russia.
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Pupyshev AB, Belichenko VM, Tenditnik MV, Bashirzade AA, Dubrovina NI, Ovsyukova MV, Akopyan AA, Fedoseeva LA, Korolenko TA, Amstislavskaya TG, Tikhonova MA. Combined induction of mTOR-dependent and mTOR-independent pathways of autophagy activation as an experimental therapy for Alzheimer's disease-like pathology in a mouse model. Pharmacol Biochem Behav 2022; 217:173406. [DOI: 10.1016/j.pbb.2022.173406] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 03/18/2022] [Accepted: 05/17/2022] [Indexed: 12/21/2022]
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Li L, Chen H, Chen X, Chen S, Gu H. Trehalose Protects Keratinocytes against Ultraviolet B Radiation by Activating Autophagy via Regulating TIMP3 and ATG9A. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:9366494. [PMID: 35450405 PMCID: PMC9018197 DOI: 10.1155/2022/9366494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 03/10/2022] [Accepted: 03/23/2022] [Indexed: 11/24/2022]
Abstract
Trehalose, a natural disaccharide, is synthesized by many organisms when cells are exposed to stressful stimuli. On the basis of its ability to modulate autophagy, trehalose has been considered an innovative drug for ameliorating many diseases, but its molecular mechanism is not well described. Previous findings demonstrated that trehalose plays a photoprotective role against ultraviolet (UV) B-induced damage through autophagy induction in keratinocytes. In this study, coimmunoprecipitation, label-free quantitative proteomic and parallel reaction monitoring, and western blot analysis demonstrated that trehalose promotes the interaction between tissue inhibitor of metalloproteinase (TIMP) 3 and Beclin1. Western blot and immunofluorescence staining analysis suggested that trehalose increases ATG9A localization in lysosomes and decreases its localization in the endoplasmic reticulum. Furthermore, in the presence or absence of UVB radiation, we evaluated the influence of TIMP3 and ATG9A small interfering RNA (siRNA) on the effect of trehalose on autophagy, cell death, migration, or interleukin-8 expression in keratinocytes, including HaCaT, A431, and human epidermal keratinocytes. The results revealed that in HaCaT cells, TIMP3 and ATG9A siRNA resulted in attenuation of trehalose-induced autophagy and inhibited cell death. In A431 cells, TIMP3 and ATG9A siRNA led to attenuation of trehalose-induced autophagy and cell death and inhibited migration. In human epidermal keratinocytes, trehalose-induced autophagy and inhibition of the interleukin-8 expression were blocked by ATG9A but not TIMP3 siRNA. In addition, the results of quantitative real-time PCR and immunohistochemistry analysis demonstrated the abnormal expression of TIMP3 and ATG9A in actinic keratosis and cutaneous squamous cell carcinoma skin tissues. These findings suggest the protective effects of trehalose in normal keratinocytes and its inhibitory effects on cancerous keratinocytes, possibly mediated by activation of autophagy and regulation of TIMP3 and ATG9A, providing the mechanistic basis for the potential use of trehalose in the prevention or treatment of UVB-induced skin diseases.
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Affiliation(s)
- Li Li
- Central Laboratory, Institute of Dermatology, Chinese Academy of Medical Science & Peking Union Medical College, Nanjing 210042, China
| | - Hongying Chen
- Department of Physical Therapy, Institute of Dermatology, Chinese Academy of Medical Science & Peking Union Medical College, Nanjing 210042, China
| | - Xu Chen
- Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Institute of Dermatology, Chinese Academy of Medical Science & Peking Union Medical College, Nanjing 210042, China
| | - Sihan Chen
- Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Institute of Dermatology, Chinese Academy of Medical Science & Peking Union Medical College, Nanjing 210042, China
| | - Heng Gu
- Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Institute of Dermatology, Chinese Academy of Medical Science & Peking Union Medical College, Nanjing 210042, China
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10
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Apolipoprotein J Attenuates Vascular Restenosis by Promoting Autophagy and Inhibiting the Proliferation and Migration of Vascular Smooth Muscle Cells. J Cardiovasc Transl Res 2022; 15:1086-1099. [PMID: 35244876 DOI: 10.1007/s12265-022-10227-y] [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: 10/12/2021] [Accepted: 02/23/2022] [Indexed: 10/18/2022]
Abstract
This research investigated the mechanism of CLU in vascular restenosis by regulating vascular smooth muscle cell (VSMC) proliferation and migration. Firstly, rat models of balloon injury (BI) were established, followed by the assessment of the injury to the common carotid artery. The effect of CLU on the intimal hyperplasia of BI rats was measured after the intervention in CLU, in addition to the evaluation of proliferation, migration, and autophagy of VSMCs. Moreover, the interaction between ATG and LC3 was analyzed, followed by validation of the role of autophagy in CLU's regulation on the proliferation and migration of VSMCs. It was found that CLU was highly expressed in BI rats. Altogether, our findings indicated that CLU was highly expressed in vascular restenosis, and CLU over-expression promoted the binding between ATG3 and LC3, thus facilitating VSMC autophagy and eventually attenuating intimal hyperplasia and vascular restenosis.
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11
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Li Z, Yao Q, Tian Y, Jiang Y, Xu M, Wang H, Xiong Y, Fang J, Lu W, Yu D, Shi H. Trehalose protects against cisplatin-induced cochlear hair cell damage by activating TFEB-mediated autophagy. Biochem Pharmacol 2021; 197:114904. [PMID: 34971589 DOI: 10.1016/j.bcp.2021.114904] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 12/15/2021] [Accepted: 12/22/2021] [Indexed: 02/05/2023]
Abstract
Cisplatin is a widely used chemotherapeutic agent for the treatment of various tumors, but its side effects limit its application. Ototoxicity, a major adverse effect of cisplatin, causes irreversible sensorineural hearing loss. Unfortunately, there are no effective approaches to protect against this damage. Autophagy has been shown to exert beneficial effects in various diseases models. However, the role of autophagy in cisplatin-induced ototoxicity has been not well elucidated. In this study, we aimed to investigate whether the novel autophagy activator trehalose could prevent cisplatin-induced damage in the auditory cell line HEI-OC1 and mouse cochlear explants and to further explore its mechanisms. Our data demonstrated that trehalose alleviated cisplatin-induced hair cell (HC) damage by inhibiting apoptosis, attenuating oxidative stress and rescuing mitochondrial dysfunction. Additionally, trehalose significantly enhanced autophagy levels in HCs, and inhibiting autophagy with 3-methyladenine (3-MA) abolished these protective effects. Mechanistically, we showed that the effect of trehalose was attributed to increased nuclear translocation of transcription factor EB (TFEB), and this effect could be mimicked by TFEB overexpression and inhibited by TFEB gene silencing or treatment with cyclosporin A (CsA), a calcineurin inhibitor. Taken together, our findings suggest that trehalose and autophagy play a role in protecting against cisplatin-induced ototoxicity and that pharmacological enhancement of TFEB-mediated autophagy is a potential treatment for cisplatin-induced damage in cochlear HCs and HEI-OC1 cells.
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Affiliation(s)
- Zhuangzhuang Li
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China; Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai 200233, China; Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai 200233, China
| | - Qingxiu Yao
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China; Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai 200233, China; Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai 200233, China
| | - Yuxin Tian
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China; Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai 200233, China; Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai 200233, China; Department of Otolaryngology-Head and Neck Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Yumeng Jiang
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China; Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai 200233, China; Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai 200233, China
| | - Maoxiang Xu
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China; Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai 200233, China; Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai 200233, China
| | - Hui Wang
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China; Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai 200233, China; Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai 200233, China; Department of Otorhinolaryngology-Head and Neck Surgery, ENT Institute and Otorhinolaryngology, Department of Affiliated Eye and ENT Hospital, Fudan University, China
| | - Yuanping Xiong
- Department of Otolaryngology Head and Neck Surgery, First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Jia Fang
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China; Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai 200233, China; Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai 200233, China.
| | - Wen Lu
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China; Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai 200233, China; Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai 200233, China.
| | - Dongzhen Yu
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China; Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai 200233, China; Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai 200233, China.
| | - Haibo Shi
- Department of Otolaryngology-Head and Neck Surgery, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China; Otolaryngology Institute of Shanghai Jiao Tong University, Shanghai 200233, China; Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai 200233, China
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12
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Zheng H, Zhai W, Zhong C, Hong Q, Li H, Rui B, Zhu X, Que D, Feng L, Yu B, Huang G, Yin J, Li J, Yan J, Yang P. Nkx2-3 induces autophagy inhibiting proliferation and migration of vascular smooth muscle cells via AMPK/mTOR signaling pathway. J Cell Physiol 2021; 236:7342-7355. [PMID: 33928642 DOI: 10.1002/jcp.30400] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 03/24/2021] [Accepted: 03/30/2021] [Indexed: 12/25/2022]
Abstract
Vascular remodeling and restenosis are common complications after percutaneous coronary intervention. Excessive proliferation and migration of vascular smooth muscle cells (VSMCs) play important roles in intimal hyperplasia-induced vascular restenosis. NK2 Homeobox 3 (Nkx2-3), a critical member of Nkx family, is involved in tissue differentiation and organ development. However, the role of Nkx2-3 in VSMCs proliferation and migration remains unknown. In this study, we used carotid balloon injury model and platelet-derived growth factor-BB (PDGF)-treated VSMCs as in vivo and in vitro experimental models. EdU assay and CCK-8 assay were used to detect cell proliferation. Migration was measured by scratch test. Hematoxylin and eosin staining and immunohistochemistry staining were used to evaluate the intimal hyperplasia. The autophagy level was detected by fluorescent mRFP-GFP-LC3 in vitro and by transmission electron microscopy in vivo. It was shown that Nkx2-3 was upregulated both in balloon injured carotid arteries and PDGF-stimulated VSMCs. Adenovirus-mediated Nkx2-3 overexpression inhibited intimal hyperplasia after balloon injury, and suppressed VSMCs proliferation and migration induced by PDGF. Conversely, silencing of Nkx2-3 by small interfering RNA exaggerated proliferation and migration of VSMCs. Furthermore, we found that Nkx2-3 enhanced autophagy level, while the autophagy inhibitor 3-MA eliminated the inhibitory effect of Nkx2-3 on VSMCs proliferation and migration both in vivo and in vitro. Moreover, Nkx2-3 promoted autophagy in VSMCs by activating the AMP-activated protein kinase/mammalian target of rapamycin (AMPK/mTOR) signaling pathway. These results demonstrated for the first time that Nkx2-3 inhibited VSMCs proliferation and migration through AMPK/mTOR-mediated autophagy.
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MESH Headings
- AMP-Activated Protein Kinases/metabolism
- Animals
- Autophagy/drug effects
- Becaplermin/pharmacology
- Carotid Artery Injuries/enzymology
- Carotid Artery Injuries/genetics
- Carotid Artery Injuries/pathology
- Carotid Artery Injuries/prevention & control
- Cell Movement/drug effects
- Cell Proliferation/drug effects
- Cells, Cultured
- Disease Models, Animal
- Homeodomain Proteins/genetics
- Homeodomain Proteins/physiology
- Male
- Muscle, Smooth, Vascular/drug effects
- Muscle, Smooth, Vascular/enzymology
- Muscle, Smooth, Vascular/ultrastructure
- Myocytes, Smooth Muscle/drug effects
- Myocytes, Smooth Muscle/enzymology
- Myocytes, Smooth Muscle/ultrastructure
- Neointima
- Rats, Sprague-Dawley
- Signal Transduction
- TOR Serine-Threonine Kinases/metabolism
- Transcription Factors/genetics
- Transcription Factors/physiology
- Vascular Remodeling
- Rats
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Affiliation(s)
- Huajun Zheng
- Department of Cardiology, Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
- Heart Center of Zhujiang Hospital, Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Guangzhou, Guangdong, China
- Heart Center of Zhujiang Hospital, Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Guangzhou, Guangdong, China
| | - Weicheng Zhai
- Department of Cardiology, Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
- Heart Center of Zhujiang Hospital, Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Guangzhou, Guangdong, China
- Heart Center of Zhujiang Hospital, Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Guangzhou, Guangdong, China
| | - Chongbin Zhong
- Department of Cardiology, Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
- Heart Center of Zhujiang Hospital, Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Guangzhou, Guangdong, China
- Heart Center of Zhujiang Hospital, Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Guangzhou, Guangdong, China
| | - Qingqing Hong
- Department of Cardiology, Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
- Heart Center of Zhujiang Hospital, Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Guangzhou, Guangdong, China
- Heart Center of Zhujiang Hospital, Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Guangzhou, Guangdong, China
| | - Hekai Li
- Department of Cardiology, Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
- Heart Center of Zhujiang Hospital, Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Guangzhou, Guangdong, China
- Heart Center of Zhujiang Hospital, Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Guangzhou, Guangdong, China
| | - Bowen Rui
- Department of Cardiology, Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
- Heart Center of Zhujiang Hospital, Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Guangzhou, Guangdong, China
- Heart Center of Zhujiang Hospital, Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Guangzhou, Guangdong, China
| | - Xingxing Zhu
- Department of Cardiology, Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
- Heart Center of Zhujiang Hospital, Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Guangzhou, Guangdong, China
- Heart Center of Zhujiang Hospital, Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Guangzhou, Guangdong, China
| | - Dongdong Que
- Department of Cardiology, Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
- Heart Center of Zhujiang Hospital, Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Guangzhou, Guangdong, China
- Heart Center of Zhujiang Hospital, Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Guangzhou, Guangdong, China
| | - Liyun Feng
- Department of Cardiology, Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
- Heart Center of Zhujiang Hospital, Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Guangzhou, Guangdong, China
- Heart Center of Zhujiang Hospital, Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Guangzhou, Guangdong, China
| | - Bin Yu
- Department of Cardiology, Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
- Heart Center of Zhujiang Hospital, Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Guangzhou, Guangdong, China
- Heart Center of Zhujiang Hospital, Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Guangzhou, Guangdong, China
| | - Guanlin Huang
- Department of Cardiology, Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
- Heart Center of Zhujiang Hospital, Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Guangzhou, Guangdong, China
- Heart Center of Zhujiang Hospital, Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Guangzhou, Guangdong, China
| | - Jianlong Yin
- Department of Cardiology, Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
- Heart Center of Zhujiang Hospital, Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Guangzhou, Guangdong, China
- Heart Center of Zhujiang Hospital, Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Guangzhou, Guangdong, China
| | - Jiacheng Li
- Department of Cardiology, Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
- Heart Center of Zhujiang Hospital, Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Guangzhou, Guangdong, China
- Heart Center of Zhujiang Hospital, Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Guangzhou, Guangdong, China
| | - Jing Yan
- Department of Cardiology, Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
- Heart Center of Zhujiang Hospital, Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Guangzhou, Guangdong, China
- Heart Center of Zhujiang Hospital, Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Guangzhou, Guangdong, China
| | - Pingzhen Yang
- Department of Cardiology, Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
- Heart Center of Zhujiang Hospital, Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Guangzhou, Guangdong, China
- Heart Center of Zhujiang Hospital, Sino-Japanese Cooperation Platform for Translational Research in Heart Failure, Guangzhou, Guangdong, China
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13
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Shi YN, Liu LP, Deng CF, Zhao TJ, Shi Z, Yan JY, Gong YZ, Liao DF, Qin L. Celastrol ameliorates vascular neointimal hyperplasia through Wnt5a-involved autophagy. Int J Biol Sci 2021; 17:2561-2575. [PMID: 34326694 PMCID: PMC8315023 DOI: 10.7150/ijbs.58715] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 06/07/2021] [Indexed: 12/19/2022] Open
Abstract
Neointimal hyperplasia caused by the excessive proliferation of vascular smooth muscle cells (VSMCs) is the pathological basis of restenosis. However, there are few effective strategies to prevent restenosis. Celastrol, a pentacyclic triterpene, has been recently documented to be beneficial to certain cardiovascular diseases. Based on its significant effect on autophagy, we proposed that celastrol could attenuate restenosis through enhancing autophagy of VSMCs. In the present study, we found that celastrol effectively inhibited the intimal hyperplasia and hyperproliferation of VSMCs by inducing autophagy. It was revealed that autophagy promoted by celastrol could induce the lysosomal degradation of c-MYC, which might be a possible mechanism contributing to the reduction of VSMCs proliferation. The Wnt5a/PKC/mTOR signaling pathway was found to be an underlying mechanism for celastrol to induce autophagy and inhibit the VSMCs proliferation. These observations indicate that celastrol may be a novel drug with a great potential to prevent restenosis.
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MESH Headings
- Animals
- Autophagy/drug effects
- Cells, Cultured
- Disease Models, Animal
- Femoral Artery/injuries
- Humans
- Hyperplasia/metabolism
- Hyperplasia/pathology
- Male
- Mice
- Mice, Inbred C57BL
- Muscle, Smooth, Vascular/cytology
- Muscle, Smooth, Vascular/drug effects
- Muscle, Smooth, Vascular/metabolism
- Myocytes, Smooth Muscle/cytology
- Myocytes, Smooth Muscle/drug effects
- Myocytes, Smooth Muscle/metabolism
- Neointima
- Pentacyclic Triterpenes/pharmacology
- Signal Transduction/drug effects
- TOR Serine-Threonine Kinases/metabolism
- Wnt-5a Protein/metabolism
- Wound Healing/drug effects
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Affiliation(s)
- Ya-Ning Shi
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, Hunan, China
- Division of Stem Cell Regulation and Application, Hunan University of Chinese Medicine, Changsha, Hunan, China
| | - Le-Ping Liu
- Institue of Innovation and Applied Research in Chinese Medicine, Hunan University of Chinese Medicine, Changsha, Hunan, China
| | - Chang-Feng Deng
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, Hunan, China
- Division of Stem Cell Regulation and Application, Hunan University of Chinese Medicine, Changsha, Hunan, China
| | - Tan-Jun Zhao
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, Hunan, China
- Division of Stem Cell Regulation and Application, Hunan University of Chinese Medicine, Changsha, Hunan, China
| | - Zhe Shi
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, Hunan, China
| | - Jian-Ye Yan
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, Hunan, China
| | - Yong-Zhen Gong
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, Hunan, China
| | - Duan-Fang Liao
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, Hunan, China
- Division of Stem Cell Regulation and Application, Hunan University of Chinese Medicine, Changsha, Hunan, China
| | - Li Qin
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, Hunan, China
- Division of Stem Cell Regulation and Application, Hunan University of Chinese Medicine, Changsha, Hunan, China
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14
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Vara‐Pérez M, Rossi M, Van den Haute C, Maes H, Sassano ML, Venkataramani V, Michalke B, Romano E, Rillaerts K, Garg AD, Schepkens C, Bosisio FM, Wouters J, Oliveira AI, Vangheluwe P, Annaert W, Swinnen JV, Colet JM, van den Oord JJ, Fendt S, Mazzone M, Agostinis P. BNIP3 promotes HIF-1α-driven melanoma growth by curbing intracellular iron homeostasis. EMBO J 2021; 40:e106214. [PMID: 33932034 PMCID: PMC8126921 DOI: 10.15252/embj.2020106214] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 02/22/2021] [Accepted: 02/24/2021] [Indexed: 12/11/2022] Open
Abstract
BNIP3 is a mitophagy receptor with context-dependent roles in cancer, but whether and how it modulates melanoma growth in vivo remains unknown. Here, we found that elevated BNIP3 levels correlated with poorer melanoma patient's survival and depletion of BNIP3 in B16-F10 melanoma cells compromised tumor growth in vivo. BNIP3 depletion halted mitophagy and enforced a PHD2-mediated downregulation of HIF-1α and its glycolytic program both in vitro and in vivo. Mechanistically, we found that BNIP3-deprived melanoma cells displayed increased intracellular iron levels caused by heightened NCOA4-mediated ferritinophagy, which fostered PHD2-mediated HIF-1α destabilization. These effects were not phenocopied by ATG5 or NIX silencing. Restoring HIF-1α levels in BNIP3-depleted melanoma cells rescued their metabolic phenotype and tumor growth in vivo, but did not affect NCOA4 turnover, underscoring that these BNIP3 effects are not secondary to HIF-1α. These results unravel an unexpected role of BNIP3 as upstream regulator of the pro-tumorigenic HIF-1α glycolytic program in melanoma cells.
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Affiliation(s)
- Mónica Vara‐Pérez
- Cell Death Research and Therapy GroupDepartment of Cellular and Molecular MedicineKU LeuvenLeuvenBelgium
- VIB Center for Cancer Biology ResearchLeuvenBelgium
| | - Matteo Rossi
- VIB Center for Cancer Biology ResearchLeuvenBelgium
- Laboratory of Cellular Metabolism and Metabolic RegulationDepartment of OncologyKU Leuven and Leuven Cancer Institute (LKI)LeuvenBelgium
| | - Chris Van den Haute
- Research Group for Neurobiology and Gene TherapyDepartment of NeurosciencesKU LeuvenLeuvenBelgium
- Leuven Viral Vector CoreDepartment of NeurosciencesKU LeuvenLeuvenBelgium
| | - Hannelore Maes
- Cell Death Research and Therapy GroupDepartment of Cellular and Molecular MedicineKU LeuvenLeuvenBelgium
| | - Maria Livia Sassano
- Cell Death Research and Therapy GroupDepartment of Cellular and Molecular MedicineKU LeuvenLeuvenBelgium
- VIB Center for Cancer Biology ResearchLeuvenBelgium
| | - Vivek Venkataramani
- Institute of PathologyUniversity Medical Center Göttingen (UMG)GöttingenGermany
| | - Bernhard Michalke
- Helmholtz Zentrum München GmbH – German Research Center for Environmental HealthResearch Unit Analytical BioGeoChemistryNeuherbergGermany
| | - Erminia Romano
- Cell Death Research and Therapy GroupDepartment of Cellular and Molecular MedicineKU LeuvenLeuvenBelgium
| | - Kristine Rillaerts
- Cell Death Research and Therapy GroupDepartment of Cellular and Molecular MedicineKU LeuvenLeuvenBelgium
- VIB Center for Cancer Biology ResearchLeuvenBelgium
| | - Abhishek D Garg
- Cell Death Research and Therapy GroupDepartment of Cellular and Molecular MedicineKU LeuvenLeuvenBelgium
| | - Corentin Schepkens
- Laboratory of Lipid Metabolism and CancerDepartment of OncologyKU LeuvenLeuvenBelgium
- Human Biology and Toxicology UnitUniversity of MonsMonsBelgium
| | - Francesca M Bosisio
- Laboratory of Translational Cell and Tissue ResearchDepartment of Imaging and PathologyKU LeuvenLeuvenBelgium
| | - Jasper Wouters
- Laboratory of Translational Cell and Tissue ResearchDepartment of Imaging and PathologyKU LeuvenLeuvenBelgium
| | - Ana Isabel Oliveira
- VIB Center for Cancer Biology ResearchLeuvenBelgium
- Laboratory of Tumor Inflammation and AngiogenesisDepartment of OncologyKU LeuvenLeuvenBelgium
| | - Peter Vangheluwe
- Laboratory of Cellular Transport SystemsDepartment of Cellular and Molecular MedicineKU LeuvenLeuvenBelgium
| | - Wim Annaert
- Laboratory for Membrane TraffickingDepartment of NeurosciencesKU LeuvenLeuvenBelgium
- VIB Center for Brain and Disease ResearchLeuvenBelgium
| | - Johannes V Swinnen
- Laboratory of Lipid Metabolism and CancerDepartment of OncologyKU LeuvenLeuvenBelgium
| | | | - Joost J van den Oord
- Laboratory of Translational Cell and Tissue ResearchDepartment of Imaging and PathologyKU LeuvenLeuvenBelgium
| | - Sarah‐Maria Fendt
- VIB Center for Cancer Biology ResearchLeuvenBelgium
- Laboratory of Cellular Metabolism and Metabolic RegulationDepartment of OncologyKU Leuven and Leuven Cancer Institute (LKI)LeuvenBelgium
| | - Massimiliano Mazzone
- VIB Center for Cancer Biology ResearchLeuvenBelgium
- Laboratory of Tumor Inflammation and AngiogenesisDepartment of OncologyKU LeuvenLeuvenBelgium
| | - Patrizia Agostinis
- Cell Death Research and Therapy GroupDepartment of Cellular and Molecular MedicineKU LeuvenLeuvenBelgium
- VIB Center for Cancer Biology ResearchLeuvenBelgium
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15
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Zhou F, Zhang X, Jiang L, Li S, Chen Y, Wu J. Pseudoginsenoside F11 Enhances the Viability of Random-Pattern Skin Flaps by Promoting TFEB Nuclear Translocation Through AMPK-mTOR Signal Pathway. Front Pharmacol 2021; 12:667524. [PMID: 33995096 PMCID: PMC8116945 DOI: 10.3389/fphar.2021.667524] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Accepted: 04/12/2021] [Indexed: 12/11/2022] Open
Abstract
Random-pattern skin flap is widely used in tissue reconstruction. However, necrosis occurring in the distal part of the flap limits its clinical application to some extent. Activation of autophagy has been considered as an effective approach to enhance the survival of skin flaps. Pseudoginsenoside F11 (PF11), an ocotillol-type saponin, is an important component of Panax quinquefolium which has been shown to confer protection against cerebral ischemia and alleviate oxidative stress. However, it is currently unknown whether PF11 induces autophagy to improve the survival of skin flaps. In this study, we investigated the effects of PF11 on blood flow and tissue edema. The results of histological examination and western blotting showed that PF11 enhanced angiogenesis, alleviated apoptosis and oxidative stress, thereby improving the survival of the flap. Further experiments showed that PF11 promoted nuclear translocation of TFEB and by regulating the phosphorylation of AMPK. In summary, this study demonstrates that PF11 activates autophagy through the AMPK-TFEB signal pathway in skin flaps and it could be a promising strategy for enhancing flap viability.
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Affiliation(s)
- Feiya Zhou
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,The Second Clinical Medical College of Wenzhou Medical University, Wenzhou, China
| | - Xian Zhang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,The Second Clinical Medical College of Wenzhou Medical University, Wenzhou, China
| | - Liangfu Jiang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,The Second Clinical Medical College of Wenzhou Medical University, Wenzhou, China
| | - Shi Li
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,The Second Clinical Medical College of Wenzhou Medical University, Wenzhou, China
| | - Yiheng Chen
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,The Second Clinical Medical College of Wenzhou Medical University, Wenzhou, China
| | - Jianbin Wu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,The Second Clinical Medical College of Wenzhou Medical University, Wenzhou, China
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16
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Doronzo G, Astanina E, Bussolino F. The Oncogene Transcription Factor EB Regulates Vascular Functions. Front Physiol 2021; 12:640061. [PMID: 33912071 PMCID: PMC8072379 DOI: 10.3389/fphys.2021.640061] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 03/17/2021] [Indexed: 12/19/2022] Open
Abstract
Transcription factor EB (TFEB) represents an emerging player in vascular biology. It belongs to the bHLH-leucine zipper transcription factor microphthalmia family, which includes microphthalmia-associated transcription factor, transcription factor E3 and transcription factor EC, and is known to be deregulated in cancer. The canonical transcriptional pathway orchestrated by TFEB adapts cells to stress in all kinds of tissues by supporting lysosomal and autophagosome biogenesis. However, emerging findings highlight that TFEB activates other genetic programs involved in cell proliferation, metabolism, inflammation and immunity. Here, we first summarize the general principles and mechanisms by which TFEB activates its transcriptional program. Then, we analyze the current knowledge of TFEB in the vascular system, placing particular emphasis on its regulatory role in angiogenesis and on the involvement of the vascular unit in inflammation and atherosclerosis.
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Affiliation(s)
- Gabriella Doronzo
- Department of Oncology, University of Torino, Candiolo, Italy.,Laboratory of Vascular Oncology, Candiolo Cancer Institute-IRCCS-FPO, Candiolo, Italy
| | - Elena Astanina
- Department of Oncology, University of Torino, Candiolo, Italy.,Laboratory of Vascular Oncology, Candiolo Cancer Institute-IRCCS-FPO, Candiolo, Italy
| | - Federico Bussolino
- Department of Oncology, University of Torino, Candiolo, Italy.,Laboratory of Vascular Oncology, Candiolo Cancer Institute-IRCCS-FPO, Candiolo, Italy
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17
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Lu H, Sun J, Hamblin MH, Chen YE, Fan Y. Transcription factor EB regulates cardiovascular homeostasis. EBioMedicine 2021; 63:103207. [PMID: 33418500 PMCID: PMC7804971 DOI: 10.1016/j.ebiom.2020.103207] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 12/11/2020] [Accepted: 12/28/2020] [Indexed: 01/09/2023] Open
Abstract
Cardiovascular diseases (CVDs) are the leading cause of death and a major cause of disability globally. Transcription factor EB (TFEB), as a member of the microphthalmia transcription factor (MITF) family, has been demonstrated to be a master regulator of autophagy and lysosomal biogenesis. Emerging studies suggest that TFEB regulates homeostasis in the cardiovascular system and shows beneficial effects on CVDs, including atherosclerosis, aortic aneurysm, postischemic angiogenesis, and cardiotoxicity, constituting a promising molecular target for the prevention and treatment of these diseases. Post-translational modifications regulate TFEB nuclear translocation and its transcriptional activity. Therapeutic strategies have been pursued to enhance TFEB activity and facilitate TFEB beneficial effects on CVDs. The elucidation of TFEB function and the precise underlying mechanisms will accelerate drug development and potential applications of TFEB drugs in the treatment of human diseases.
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Affiliation(s)
- Haocheng Lu
- Cardiovascular Center, Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, MI, 48109, USA
| | - Jinjian Sun
- Cardiovascular Center, Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, MI, 48109, USA
| | - Milton H Hamblin
- Department of Pharmacology, Tulane University School of Medicine, New Orleans, LA, 70112
| | - Y Eugene Chen
- Cardiovascular Center, Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, MI, 48109, USA
| | - Yanbo Fan
- Department of Cancer Biology, University of Cincinnati College of Medicine, Cincinnati, OH, 45267, USA; Department of Internal Medicine, Division of Cardiovascular Health and Disease, University of Cincinnati College of Medicine, Cincinnati, OH, 45267, USA.
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18
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Shan R, Liu N, Yan Y, Liu B. Apoptosis, autophagy and atherosclerosis: Relationships and the role of Hsp27. Pharmacol Res 2020; 166:105169. [PMID: 33053445 DOI: 10.1016/j.phrs.2020.105169] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 08/16/2020] [Accepted: 08/18/2020] [Indexed: 02/07/2023]
Abstract
Atherosclerosis is a multifactorial chronic inflammatory disease of the arterial wall, and an important pathological basis of coronary heart disease. Endothelial cells, vascular smooth muscle cells, and macrophages play important roles in the development of atherosclerosis. Of note, apoptosis and autophagy, two types of programmed cell death, influence the development and progression of atherosclerosis via the modulation of such cells. The small heat shock protein Hsp27 is a multifunctional protein induced by various stress factors and has a protective effect on cells. A large number of studies have demonstrated that Hsp27 plays an important role in regulating apoptosis. Recently, some studies have suggested that Hsp27 also participates in the autophagic process. Moreover, Hsp27 is closely related to the occurrence and development of atherosclerosis. Here, we summarize the molecular mechanisms of apoptosis and autophagy and discuss their effects on endothelial cells, vascular smooth muscle cells, and macrophages in the context of atherosclerotic procession. We further explore the involvement of Hsp27 in apoptosis, autophagy, and atherosclerosis. We speculate that Hsp27 may exert its anti-atherosclerotic role via the regulation of apoptosis and autophagy; this may provide the basis for the development of new approaches for the prevention and treatment of atherosclerosis.
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Affiliation(s)
- Ruiting Shan
- Department of Cardiology, The Second Hospital of Jilin University, Changchun, 130041, China
| | - Ning Liu
- Department of Cardiology, The Second Hospital of Jilin University, Changchun, 130041, China
| | - Youyou Yan
- Department of Cardiology, The Second Hospital of Jilin University, Changchun, 130041, China
| | - Bin Liu
- Department of Cardiology, The Second Hospital of Jilin University, Changchun, 130041, China.
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19
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Hughes WE, Beyer AM, Gutterman DD. Vascular autophagy in health and disease. Basic Res Cardiol 2020; 115:41. [PMID: 32506214 DOI: 10.1007/s00395-020-0802-6] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 05/26/2020] [Indexed: 12/14/2022]
Abstract
Homeostasis is maintained within organisms through the physiological recycling process of autophagy, a catabolic process that is intricately involved in the mobilization of nutrients during starvation, recycling of cellular cargo, as well as initiation of cellular death pathways. Specific to the cardiovascular system, autophagy responds to both chemical (e.g. free radicals) and mechanical stressors (e.g. shear stress). It is imperative to note that autophagy is not a static process, and measurement of autophagic flux provides a more comprehensive investigation into the role of autophagy. The overarching themes emerging from decades of autophagy research are that basal levels of autophagic flux are critical, physiological stressors may increase or decrease autophagic flux, and more importantly, aberrant deviations from basal autophagy may elicit detrimental effects. Autophagy has predominantly been examined within cardiac or vascular smooth muscle tissue within the context of disease development and progression. Autophagic flux within the endothelium holds an important role in maintaining vascular function, demonstrated by the necessary role for intact autophagic flux for shear-induced release of nitric oxide however the underlying mechanisms have yet to be elucidated. Within this review, we theorize that autophagy itself does not solely control vascular homeostasis, rather, it works in concert with mitochondria, telomerase, and lipids to maintain physiological function. The primary emphasis of this review is on the role of autophagy within the human vasculature, and the integrative effects with physiological processes and diseases as they relate to the vascular structure and function.
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Affiliation(s)
- William E Hughes
- Department of Medicine, Cardiovascular Center, Medical College of Wisconsin, 8701 West Watertown Plank Road, Milwaukee, WI, 53213, USA.
| | - Andreas M Beyer
- Department of Medicine, Cardiovascular Center, Medical College of Wisconsin, 8701 West Watertown Plank Road, Milwaukee, WI, 53213, USA
| | - David D Gutterman
- Department of Medicine, Cardiovascular Center, Medical College of Wisconsin, 8701 West Watertown Plank Road, Milwaukee, WI, 53213, USA
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20
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Zhang Y, Chen Y, Zhang Y, Li PL, Li X. Contribution of cathepsin B-dependent Nlrp3 inflammasome activation to nicotine-induced endothelial barrier dysfunction. Eur J Pharmacol 2019; 865:172795. [PMID: 31733211 PMCID: PMC6925381 DOI: 10.1016/j.ejphar.2019.172795] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Revised: 11/04/2019] [Accepted: 11/12/2019] [Indexed: 12/22/2022]
Abstract
Recent studies indicate that endothelial Nlrp3 inflammasome is critically involved in the development of cardiovascular complications. However, it remains unknown whether endothelial inflammasome is involved in endothelial barrier dysfunction associated with smoking. This study aims to investigate the role of endothelial Nlrp3 inflammasome in nicotine-induced disruption of inter-endothelial tight junctions and consequent endothelial barrier dysfunction. The confocal microscopic analysis demonstrated that mice treated with nicotine exhibited disrupted inter-endothelial tight junctions as shown by decreased ZO-1 and ZO-2 expression in the coronary arterial endothelium, whereas the decreases in ZO-1/2 were prevented by Nlrp3 gene deficiency. In cultured endothelial cells, nicotine caused Nlrp3 inflammasome complex formation and enhances the inflammasome activity as shown by increased cleavage of pro-caspase-1, and interleukin-1β (IL-1β) production. Further, nicotine disrupted tight junction and increased permeability in an endothelial cell monolayer, and this nicotine-induced effect was prevented by silencing of Nlrp3 gene, inhibition of caspase-1, or blockade of high mobility group box 1 (HMGB1). Nicotine increased endothelial cell lysosomal membrane permeability and triggered the lysosomal release of cathepsin B, whereas these events were prevented by pretreating cells with a lysosome stabilizing agent, dexamethasone. Collectively, our data suggest that nicotine enhances cathepsin B-dependent Nlrp3 inflammasome activation and the consequent production of a novel permeability factor HMGB1, which causes disruption of inter-endothelial tight junctions leading to endothelial hyperpermeability. Instigation of endothelial inflammasomes may serve as an important pathogenic mechanism contributing to the early onset of vasculopathy associated with smoking.
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Affiliation(s)
- Yang Zhang
- Department of Pharmacology & Toxicology, School of Medicine, Virginia Commonwealth University, Richmond, VA, 23298, USA; Department of Pharmacological & Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, TX, 77204, USA
| | - Yang Chen
- Department of Pharmacology & Toxicology, School of Medicine, Virginia Commonwealth University, Richmond, VA, 23298, USA
| | - Youzhi Zhang
- Department of Pharmacology & Toxicology, School of Medicine, Virginia Commonwealth University, Richmond, VA, 23298, USA; School of Pharmacy, Hubei University of Science and Technology, Xianning, China
| | - Pin-Lan Li
- Department of Pharmacology & Toxicology, School of Medicine, Virginia Commonwealth University, Richmond, VA, 23298, USA
| | - Xiang Li
- Department of Pharmacology & Toxicology, School of Medicine, Virginia Commonwealth University, Richmond, VA, 23298, USA; Department of Pharmacological & Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, TX, 77204, USA.
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