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Zhao J, Qiu YK, Xie YX, Li XY, Li YB, Wu B, Wang YW, Tian XY, Lv YL, Zhang LH, Li WL, Yang HF. Imbalance of mitochondrial quality control regulated by STING and PINK1 affects cyfluthrin-induced neuroinflammation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 946:174313. [PMID: 38964406 DOI: 10.1016/j.scitotenv.2024.174313] [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: 04/03/2024] [Revised: 06/11/2024] [Accepted: 06/24/2024] [Indexed: 07/06/2024]
Abstract
Nervous system diseases are a global health problem, and with the increase in the elderly population around the world, their incidence will also increase. Harmful substances in the environment are closely related to the occurrence of nervous system diseases. China is a large agricultural country, and thus the insecticide cyfluthrin has been widely used. Cyfluthrin is neurotoxic, but the mechanism of this injury is not clear. Inflammation is an important mechanism for the occurrence of nervous system diseases. Mitochondria are the main regulators of the inflammatory response, and various cellular responses, including autophagy, directly affect the regulation of inflammatory processes. Mitochondrial damage is related to mitochondrial quality control (MQC) and PTEN-induced kinase 1 (PINK1). As an anti-inflammatory factor, stimulator of interferon genes (STING) participates in the regulation of inflammation. However, the relationship between STING and mitochondria in the process of cyfluthrin-induced nerve injury is unclear. This study established in vivo and in vitro models of cyfluthrin exposure to explore the role of MQC and to clarify the mechanism of action of STING and PINK1. Our results showed that cyfluthrin can increase the reactive oxygen species (ROS) level, resulting in mitochondrial damage and inflammation. In this process, an imbalance in MQC leads to the aggravation of mitochondrial damage, and high STING expression drives the occurrence of inflammation. We established a differential expression model of STING and PINK1 to further determine the underlying mechanism and found that the interaction between STING and PINK1 regulates MQC to affect the levels of mitochondrial damage and inflammation. When STING and PINK1 expression are downregulated, mitochondrial damage and STING-induced inflammation are significantly alleviated. In summary, a synergistic effect between STING and PINK1 on cyfluthrin-induced neuroinflammation may exist, which leads to an imbalance in MQC by inhibiting mitochondrial biogenesis and division/fusion, and PINK1 can reduce STING-driven inflammation.
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Affiliation(s)
- Ji Zhao
- College of Public Health, Ningxia Medical University, Yinchuan 750004, PR China; Key Laboratory of Environmental Factors and Chronic Disease Control, Yinchuan 750004, PR China; Department of Toxicology, Shaanxi Provincial Key Lab of Free Radical Biology and Medicine, Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an 710032, PR China
| | - Yi-Kai Qiu
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Eduction, Yinchuan 750004, PR China
| | - Yong-Xing Xie
- College of Public Health, Ningxia Medical University, Yinchuan 750004, PR China; Key Laboratory of Environmental Factors and Chronic Disease Control, Yinchuan 750004, PR China
| | - Xiao-Yu Li
- College of Public Health, Ningxia Medical University, Yinchuan 750004, PR China; Key Laboratory of Environmental Factors and Chronic Disease Control, Yinchuan 750004, PR China
| | - Yu-Bin Li
- College of Public Health, Ningxia Medical University, Yinchuan 750004, PR China; Key Laboratory of Environmental Factors and Chronic Disease Control, Yinchuan 750004, PR China
| | - Bing Wu
- College of Public Health, Ningxia Medical University, Yinchuan 750004, PR China; Key Laboratory of Environmental Factors and Chronic Disease Control, Yinchuan 750004, PR China
| | - Yu-Wen Wang
- College of Public Health, Ningxia Medical University, Yinchuan 750004, PR China; Key Laboratory of Environmental Factors and Chronic Disease Control, Yinchuan 750004, PR China
| | - Xue-Yan Tian
- College of Public Health, Ningxia Medical University, Yinchuan 750004, PR China; Key Laboratory of Environmental Factors and Chronic Disease Control, Yinchuan 750004, PR China
| | - Yan-Ling Lv
- College of Public Health, Ningxia Medical University, Yinchuan 750004, PR China; Key Laboratory of Environmental Factors and Chronic Disease Control, Yinchuan 750004, PR China
| | - Ling-He Zhang
- College of Public Health, Ningxia Medical University, Yinchuan 750004, PR China; Key Laboratory of Environmental Factors and Chronic Disease Control, Yinchuan 750004, PR China
| | - Wen-Li Li
- Department of Toxicology, Shaanxi Provincial Key Lab of Free Radical Biology and Medicine, Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Fourth Military Medical University, Xi'an 710032, PR China.
| | - Hui-Fang Yang
- College of Public Health, Ningxia Medical University, Yinchuan 750004, PR China; Key Laboratory of Environmental Factors and Chronic Disease Control, Yinchuan 750004, PR China.
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Chen R, Qian L, Zhang Q, Qin J, Chen X, Xu X. SMP30 alleviates cerebral ischemia/reperfusion-induced neuronal injury by inhibiting HDAC4/PSD-95 to preserve mitochondrial function. J Neuropathol Exp Neurol 2024:nlae095. [PMID: 39254519 DOI: 10.1093/jnen/nlae095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/11/2024] Open
Abstract
Ischemic stroke is a major cause of global death and permanent disability. Major consequences of ischemic stroke include neuronal mitochondrial dysfunction. We investigated the effects of senescence marker protein 30 (SMP30) on mitochondria-mediated apoptosis and histone deacetylase 4 (HDAC4)/postsynaptic density-95 (PSD-95) signaling in stroke models in vivo and in vitro. Rats with middle cerebral artery occlusion/reperfusion (MCAO/R) were used to simulate cerebral ischemia/reperfusion (I/R) injury. SMP30 was downregulated in the brain tissues of rats after I/R induction. SMP30 overexpression decreased MCAO/R-induced infarct volumes and improved neurologic function and histopathological changes. Increasing SMP30 expression suppressed neuronal apoptosis and reduced mitochondrial dysfunction. SMP30 overexpression in SH-SY5Y and PC12 cells treated with oxygen-glucose deprivation/reoxygenation (OGD/R) decreased HDAC4 and PSD-95 expression; PSD-95 could bind to HDAC4. Furthermore, HDAC4 upregulation abolished the effects of SMP30 overexpression on OGD/R-induced apoptosis and mitochondrial dysfunction in SH-SY5Y cells. Together, these findings indicate that SMP30 alleviates cerebral I/R-induced neuronal injury by inhibiting HDAC4/PSD-95 to preserve mitochondrial function. These interactions might provide new treatment methods for patients with ischemic stroke.
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Affiliation(s)
- Rundong Chen
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
- Neurovascular Center, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Lei Qian
- Neurovascular Center, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Qian Zhang
- Gerontology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Jiajun Qin
- Department of Neurosurgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Xianzhen Chen
- Department of Neurosurgery, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Xiaolong Xu
- Neurovascular Center, Changhai Hospital, Naval Medical University, Shanghai, China
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Jiang N, Yang T, Han H, Shui J, Hou M, Wei W, Kumar G, Song L, Ma C, Li X, Ding Z. Exploring Research Trend and Hotspots on Oxidative Stress in Ischemic Stroke (2001-2022): Insights from Bibliometric. Mol Neurobiol 2024; 61:6200-6216. [PMID: 38285289 DOI: 10.1007/s12035-023-03909-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Accepted: 12/25/2023] [Indexed: 01/30/2024]
Abstract
Oxidative stress is widely involved in the pathological process of ischemic stroke and ischemia-reperfusion. Several research have demonstrated that eliminating or reducing oxidative stress can alleviate the pathological changes of ischemic stroke. However, current clinical antioxidant treatment did not always perform as expected. This bibliometric research aims to identify research trends, topics, hotspots, and evolution on oxidative stress in the field of ischemic stroke, and to find potentially antioxidant strategies in future clinical treatment. Relevant publications were searched from the Web of Science (WOS) Core Collection databases (2001-2022). VOSviewer was used to visualize and analyze the development trends and hotspots. In the field of oxidative stress and ischemic stroke, the number of publications increased significantly from 2001 to 2022. China and the USA were the leading countries for publication output. The most prolific institutions were Stanford University. Journal of Cerebral Blood Flow and Metabolism and Stroke were the most cited journals. The research topics in this field include inflammation with oxidative stress, mitochondrial damage with oxidative stress, oxidative stress in reperfusion injury, oxidative stress in cognitive impairment and basic research and clinical translation of oxidative stress. Moreover, "NLRP3 inflammasome," "autophagy," "mitophagy," "miRNA," "ferroptosis," and "signaling pathway" are the emerging research hotspots in recent years. At present, multi-target regulation focusing on multi-mechanism crosstalk has progressed across this period, while challenges come from the transformation of basic research to clinical application. New detection technology and new nanomaterials are expected to integrate oxidative stress into the clinical treatment of ischemic stroke better.
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Affiliation(s)
- Nan Jiang
- Department of Neurology, Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan, 030032, Shanxi, China
| | - Ting Yang
- Department of Neurology, Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan, 030032, Shanxi, China
| | - Hongxia Han
- Shanxi Cardiovascular Hospital, Shanxi Medical University, Taiyuan, 030024, Shanxi, China
| | - Jing Shui
- Department of Neurology, Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan, 030032, Shanxi, China
| | - Miaomiao Hou
- Department of Neurology, Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan, 030032, Shanxi, China
- Key Laboratory of Cellular Physiology (Shanxi Medical University), Ministry of Education, Taiyuan, 030032, Shanxi, China
| | - Wenyue Wei
- Institute of Brain Science, Shanxi Key Laboratory of Inflammatory Neurodegenerative Diseases, Medical School of Shanxi Datong University, Datong, 037009, Shanxi Province, China
| | - Gajendra Kumar
- Department of Neuroscience, City University of Hong Kong, Hong Kong, 999077, Hong Kong SAR, China
| | - Lijuan Song
- Shanxi Cardiovascular Hospital, Shanxi Medical University, Taiyuan, 030024, Shanxi, China
- The Key Research Laboratory of Benefiting Qi for Acting Blood Circulation Method to Treat Multiple Sclerosis of State Administration of Traditional Chinese Medicine, Research Center of Neurobiology, Shanxi University of Chinese Medicine, Jinzhong, 030619, Shanxi, China
| | - Cungen Ma
- Institute of Brain Science, Shanxi Key Laboratory of Inflammatory Neurodegenerative Diseases, Medical School of Shanxi Datong University, Datong, 037009, Shanxi Province, China.
- The Key Research Laboratory of Benefiting Qi for Acting Blood Circulation Method to Treat Multiple Sclerosis of State Administration of Traditional Chinese Medicine, Research Center of Neurobiology, Shanxi University of Chinese Medicine, Jinzhong, 030619, Shanxi, China.
| | - Xinyi Li
- Department of Neurology, Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan, 030032, Shanxi, China.
- Shanxi Cardiovascular Hospital, Shanxi Medical University, Taiyuan, 030024, Shanxi, China.
| | - Zhibin Ding
- Department of Neurology, Third Hospital of Shanxi Medical University, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Taiyuan, 030032, Shanxi, China.
- The Key Research Laboratory of Benefiting Qi for Acting Blood Circulation Method to Treat Multiple Sclerosis of State Administration of Traditional Chinese Medicine, Research Center of Neurobiology, Shanxi University of Chinese Medicine, Jinzhong, 030619, Shanxi, China.
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Liu Y, Yu X, Jiang W. The Role of Mitochondrial Pyruvate Carrier in Neurological Disorders. Mol Neurobiol 2024:10.1007/s12035-024-04435-7. [PMID: 39177735 DOI: 10.1007/s12035-024-04435-7] [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: 01/10/2024] [Accepted: 08/09/2024] [Indexed: 08/24/2024]
Abstract
The mitochondrial pyruvate carrier (MPC) is a specific protein complex located in the inner mitochondrial membrane. Comprising a heterodimer of two homodimeric membrane proteins, mitochondrial pyruvate carrier 1 and mitochondrial pyruvate carrier 2, MPC connects cytoplasmic metabolism to mitochondrial metabolism by transferring pyruvate from the cytoplasm to the mitochondria. The nervous system requires substantial energy to maintain its function, and the mitochondrial energy supply is closely linked to neurological function. Mitochondrial dysfunction can induce or exacerbate intracerebral pathologies. MPC influences mitochondrial function due to its specific role as a pyruvate transporter. However, recent studies on MPC and mitochondrial dysfunction in neurological disorders have yielded controversial results, and the underlying mechanisms remain unclear. In this brief review, we provide an overview of the structure and function of MPC. We further discuss the potential mechanisms and feasibility of targeting MPC in treating Parkinson's disease, Alzheimer's disease, and cerebral ischemia/hypoxia injury. This review aims to offer insights into MPC as a target for clinical treatment.
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Affiliation(s)
- Yue Liu
- Department of Etiology and Carcinogenesis and State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Xiying Yu
- Department of Etiology and Carcinogenesis and State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Wei Jiang
- Department of Etiology and Carcinogenesis and State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China.
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5
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Zhang X, Xu T, Wang C, Lin Y, Hu W, Yue M, Li H. Revealing the potential role of hub metabolism-related genes and their correlation with immune cells in acute ischemic stroke. IET Syst Biol 2024; 18:129-142. [PMID: 38850201 PMCID: PMC11336060 DOI: 10.1049/syb2.12095] [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: 07/26/2023] [Revised: 05/15/2024] [Accepted: 05/23/2024] [Indexed: 06/10/2024] Open
Abstract
OBJECTIVES Acute ischemic stroke (AIS) is caused by cerebral ischemia due to thrombosis in the blood vessel. The purpose of this study is to identify key genes related to metabolism to aid in the mechanism research and management of AIS. MATERIALS AND METHODS Gene expression data were downloaded from the Gene Expression Omnibus database. Weighted gene co-expression network analysis, Gene Ontology and kyoto encyclopedia of genes and genomes analysis were used to identify metabolism-related genes that may be involved in the regulation of AIS. A protein protein interaction network was mapped using Cytoscape based on the STRING database. Subsequently, hub metabolism-related genes were identified based on Cytoscape-CytoNCA and Cytoscape-MCODE plug-ins. Least absolute shrinkage and selection operator algorithm and differential expression analysis. In addition, drug prediction, molecular docking, ceRNA network construction, and correlation analysis with immune cell infiltration were performed to explore their potential molecular mechanisms of action in AIS. Finally, the expression of hub gene was verified by real-time PCR. RESULTS Metabolism-related genes FBL, HEATR1, HSPA8, MTMR4, NDUFC1, NDUFS8 and SNU13 were identified. The AUC values of FBL, HEATR1, HSPA8, MTMR4, NDUFS8 and SNU13 were all greater than 0.8, suggesting that they had good diagnostic accuracy. Correlation analysis found that their expression levels were also related to the infiltration levels of multiple immune cells, such as Activated.CD8.T.cell and Activated.dendritic.cell. It was found that only HSPA8 was successfully matched to drugs with literature support, and these drugs were acetaminophen, bupivacaine, dexamethasone, gentamicin, tretinoin and cisplatin. Moreover, it was also identified that the ENSG000000218510-hsa-miR-330-3p-HEATR1 axis may be involved in regulating AIS. CONCLUSIONS The identification of FBL, HEATR1, HSPA8, MTMR4, NDUFC1, NDUFS8 and SNU13 provides a new research direction for exploring the molecular mechanisms of AIS, which can help in clinical management and diagnosis.
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Affiliation(s)
- Xianjing Zhang
- Department of Emergency MedicineThe Second Affiliated Hospital of Shandong First Medical UniversityTaianChina
| | - Tengxiao Xu
- Department of Emergency MedicineThe Second Affiliated Hospital of Shandong First Medical UniversityTaianChina
| | - Chen Wang
- Department of Respiratory and Critical Care MedicineThe Second Affiliated Hospital of Shandong First Medical UniversityTaianChina
| | - Yueyue Lin
- Gastroscope RoomThe Second Affiliated Hospital of Shandong First Medical UniversityTaianChina
| | - Weimi Hu
- Department of Emergency MedicineThe Second Affiliated Hospital of Shandong First Medical UniversityTaianChina
| | - Maokui Yue
- Department of Emergency MedicineThe Second Affiliated Hospital of Shandong First Medical UniversityTaianChina
| | - Hao Li
- Department of Emergency MedicineThe Second Affiliated Hospital of Shandong First Medical UniversityTaianChina
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Wang C, Gu L, Zhang Y, Gao Y, Jian Z, Xiong X. Bibliometric insights into the inflammation and mitochondrial stress in ischemic stroke. Exp Neurol 2024; 378:114845. [PMID: 38838802 DOI: 10.1016/j.expneurol.2024.114845] [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: 03/22/2024] [Revised: 05/19/2024] [Accepted: 06/02/2024] [Indexed: 06/07/2024]
Abstract
BACKGROUND Research in the areas of inflammation and mitochondrial stress in ischemic stroke is rapidly expanding, but a comprehensive overview that integrates bibliometric trends with an in-depth review of molecular mechanisms is lacking. OBJECTIVE To map the evolving landscape of research using bibliometric analysis and to detail the molecular mechanisms that underpin these trends, emphasizing their implications in ischemic stroke. METHODS We conducted a bibliometric analysis to identify key trends, top contributors, and focal research themes. In addition, we review recent research advances in mitochondrial stress and inflammation in ischemic stroke to gain a detailed understanding of the pathophysiological processes involved. CONCLUSION Our integrative approach not only highlights the growing research interest and collaborations but also provides a detailed exploration of the molecular mechanisms that are central to the pathology of ischemic stroke. This synthesis offers valuable insights for researchers and paves the way for targeted therapeutic interventions.
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Affiliation(s)
- Chaoqun Wang
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan 430060, China; Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, China
| | - Lijuan Gu
- Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, China; Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Yonggang Zhang
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan 430060, China; Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, China
| | - Yikun Gao
- Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, China; Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Zhihong Jian
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Xiaoxing Xiong
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan 430060, China; Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, China.
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Shen N, Kong L, Wang X, Zhang Y, Li R, Tao C, Wang G, Xu P, Hu W. Elabela ameliorates neuronal pyroptosis and mitochondrial fission via APJ/ZBP1 signaling in ischemic stroke. Exp Neurol 2024; 378:114802. [PMID: 38679280 DOI: 10.1016/j.expneurol.2024.114802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 04/15/2024] [Accepted: 04/25/2024] [Indexed: 05/01/2024]
Abstract
Pyroptosis signifies a significant form of programmed neuronal demise subsequent to ischemic stroke. In our prior investigations, we demonstrated that the Elabela (ELA)-Apelin receptor (APJ) axis alleviated neuronal death by improving collateral circulation and mitigating ferroptosis in a murine model of middle cerebral artery occlusion (MCAO). However, the connection between ELA and neuronal pyroptosis remains further elucidation. Here, we observed an upregulation of ELA and APJ expression in both murine brain specimens and cultured HT-22 hippocampal neurons exposed to experimental ischemic stroke. ELA administration markedly diminished the infarct size in comparison to controls. ELA treatment ameliorated neurological deficits and anxiety-like symptoms in mice with stroke, concurrently inhibiting pyroptosis and mitochondria fission in neurons. Conversely, ELA knockdown yielded the opposite effects. Utilizing RNA-sequencing analysis, we identified a candidate for pyroptosis priming, Z-DNA-binding protein 1 (ZBP1), which was suppressed in ELA-treated HT-22 neurons during oxygen-glucose deprivation/reperfusion (OGD/R). Subsequent co-immunoprecipitation analyses demonstrated the binding between APJ and ZBP1. Specifically, APJ suppressed ZBP1 to inhibit NLRP3 inflammasome activation and dynamin-related protein 1-mediated mitochondrial fission in neurons. In summary, our findings suggest that ELA functions as a stroke-induced signal limiting neuronal pyroptosis and mitochondrial fission via APJ/ZBP1 signaling, thereby underscoring ELA as a potential therapeutic target for ischemic stroke treatment.
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Affiliation(s)
- Nan Shen
- Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230001, China
| | - Lingqi Kong
- Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230001, China
| | - Xinyue Wang
- Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230001, China
| | - Yan Zhang
- Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230001, China
| | - Rui Li
- Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230001, China
| | - Chunrong Tao
- Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230001, China
| | - Guoping Wang
- Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230001, China
| | - Pengfei Xu
- Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230001, China.
| | - Wei Hu
- Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui 230001, China.
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Huang Y, Zhang Z, Xu Y, Peng Y, Xu R, Luan Y, Bie X, Jia J, Zhang C, Han T, Zhou B, Li Z, Zheng H, Yang D, He Y. ARMC10 regulates mitochondrial dynamics and affects mitochondrial function via the Wnt/β-catenin signalling pathway involved in ischaemic stroke. J Cell Mol Med 2024; 28:e18449. [PMID: 38924214 PMCID: PMC11196997 DOI: 10.1111/jcmm.18449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 04/25/2024] [Accepted: 05/13/2024] [Indexed: 06/28/2024] Open
Abstract
Mitochondrial dynamics has emerged as an important target for neuronal protection after cerebral ischaemia/reperfusion. Therefore, the aim of this study was to investigate the mechanism by which ARMC10 regulation of mitochondrial dynamics affects mitochondrial function involved in ischaemic stroke (IS). Mitochondrial morphology was detected by laser scanning confocal microscopy (LSCM), and mitochondrial ultrastructural alterations were detected by electron microscopy. The expression of mitochondrial dynamics-related genes Drp1, Mfn1, Mfn2, Fis1, OPA1 and ARMC10 and downstream target genes c-Myc, CyclinD1 and AXIN2 was detected by RT-qPCR. Western blot was used to detect the protein expression of β-catenin, GSK-3β, p-GSK-3β, Bcl-2 and Bax. DCFH-DA fluorescent probe was to detect the effect of ARMC10 on mitochondrial ROS level, Annexin V-FITC fluorescent probe was to detect the effect of ARMC10 on apoptosis, and ATP assay kit was to detect the effect of ARMC10 on ATP production. Mitochondrial dynamics was dysregulated in clinical IS samples and in the OGD/R cell model, and the relative expression of ARMC10 gene was significantly decreased in IS group (p < 0.05). Knockdown and overexpression of ARMC10 could affect mitochondrial dynamics, mitochondrial function and neuronal apoptosis. Agonist and inhibitor affected mitochondrial function and neuronal apoptosis by targeting Wnt/β-Catenin signal pathway. In the OGD/R model, ARMC10 affected mitochondrial function and neuronal apoptosis through the mechanism that regulates Wnt/β-catenin signalling pathway. ARMC10 regulates mitochondrial dynamics and protects mitochondrial function by activating Wnt/β-catenin signalling pathway, to exert neuroprotective effects.
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Affiliation(s)
- Yanyang Huang
- Department of Medical Genetics and Cell Biology, School of Basic Medical SciencesZhengzhou UniversityZhengzhouChina
| | - Zhaojing Zhang
- Department of Medical Genetics and Cell Biology, School of Basic Medical SciencesZhengzhou UniversityZhengzhouChina
| | - Yatian Xu
- Department of Medical Genetics and Cell Biology, School of Basic Medical SciencesZhengzhou UniversityZhengzhouChina
| | - Yue Peng
- Department of Medical Genetics and Cell Biology, School of Basic Medical SciencesZhengzhou UniversityZhengzhouChina
| | - Ruochen Xu
- Department of Medical Genetics and Cell Biology, School of Basic Medical SciencesZhengzhou UniversityZhengzhouChina
| | - Yingying Luan
- Reproduction CenterThe Third Affiliated Hospital of ZhengZhou UniversityZhengzhouChina
| | - Xiaoshuai Bie
- Clinical Laboratory CenterQingyuan Maternal and Child Health HospitalQingyuanChina
| | - Jing Jia
- Department of Medical Genetics and Cell Biology, School of Basic Medical SciencesZhengzhou UniversityZhengzhouChina
| | - Chi Zhang
- Department of Medical Genetics and Cell Biology, School of Basic Medical SciencesZhengzhou UniversityZhengzhouChina
| | - Tianyi Han
- Department of Medical Genetics and Cell Biology, School of Basic Medical SciencesZhengzhou UniversityZhengzhouChina
| | - Baixue Zhou
- Department of Medical Genetics and Cell Biology, School of Basic Medical SciencesZhengzhou UniversityZhengzhouChina
| | - Zhihao Li
- Department of Medical Genetics and Cell Biology, School of Basic Medical SciencesZhengzhou UniversityZhengzhouChina
| | - Hong Zheng
- Department of Medical Genetics and Cell Biology, School of Basic Medical SciencesZhengzhou UniversityZhengzhouChina
| | - Dongzhi Yang
- School of Life SciencesZhengzhou UniversityZhengzhouChina
| | - Ying He
- Department of Medical Genetics and Cell Biology, School of Basic Medical SciencesZhengzhou UniversityZhengzhouChina
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Ma R, Norbo K, Zhu Y, Zhu C, Zhou F, Dhondub L, Gyaltsen K, Wu C, Dai J. Chemical proteomics unveils that seventy flavors pearl pill ameliorates ischemic stroke by regulating oxidative phosphorylation. Bioorg Chem 2024; 145:107187. [PMID: 38354502 DOI: 10.1016/j.bioorg.2024.107187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 01/24/2024] [Accepted: 02/06/2024] [Indexed: 02/16/2024]
Abstract
Ischemic stroke has high mortality and morbidity rates and is the second leading cause of death in the world, but there is no definitive medicine. Seventy Flavors Pearl Pill (SFPP) is a classic formula in Tibetan Medicine. Clinical practice has shown the attenuation effect of SFPP on blood pressure disorders, strokes and their sequelae and other neurological symptoms, but its mechanism remains to be elucidated. In this study, we established three animal models in vivo and three cell models to evaluate the anti-hypoxia, anti-ischemia, and reperfusion injury prevention effects of SFPP. Quantitative proteomics revealed that oxidative phosphorylation (OXPHOS) is essential for SFPP's efficacy. Then, cysteine-activity based protein profiling technology, which reflects redox stress at the proteome level, was employed to illustrate that SFPP brought functional differences of critical proteins in OXPHOS. In addition, quantitative metabolomics revealed that SFPP affects whole energy metabolism with OXPHOS as the core. Finally, we performed a compositional identification of SFPP to initially explore the components of potential interventions in OXPHOS. These results provide new perspectives and tools to explore the mechanism of herbal medicine. The study suggests that OXPHOS could be a potential target for further research and intervention of ischemic stroke treatment.
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Affiliation(s)
- Ruyun Ma
- School of Pharmacy, Lanzhou University, Lanzhou, P.R. China
| | - Kelsang Norbo
- School of Pharmacy, Lanzhou University, Lanzhou, P.R. China; Technological Innovation Center of Traditional Tibetan Medicine Modernization of Tibet Autonomous Region, Lasa, P.R. China
| | - Yanning Zhu
- School of Pharmacy, Lanzhou University, Lanzhou, P.R. China
| | - Chunyan Zhu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research and State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, P.R. China
| | - Feng Zhou
- Technological Innovation Center of Traditional Tibetan Medicine Modernization of Tibet Autonomous Region, Lasa, P.R. China
| | - Lobsang Dhondub
- Technological Innovation Center of Traditional Tibetan Medicine Modernization of Tibet Autonomous Region, Lasa, P.R. China
| | - Kelsang Gyaltsen
- Technological Innovation Center of Traditional Tibetan Medicine Modernization of Tibet Autonomous Region, Lasa, P.R. China
| | - Caisheng Wu
- Fujian Provincial Key Laboratory of Innovative Drug Target Research and State Key Laboratory of Cellular Stress Biology, School of Pharmaceutical Sciences, Xiamen University, Xiamen, P.R. China
| | - Jianye Dai
- School of Pharmacy, Lanzhou University, Lanzhou, P.R. China; Technological Innovation Center of Traditional Tibetan Medicine Modernization of Tibet Autonomous Region, Lasa, P.R. China; Collaborative Innovation Center for Northwestern Chinese Medicine, Lanzhou University, Lanzhou, P.R. China.
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10
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Neves LT, Paz LV, Wieck A, Mestriner RG, de Miranda Monteiro VAC, Xavier LL. Environmental Enrichment in Stroke Research: an Update. Transl Stroke Res 2024; 15:339-351. [PMID: 36717476 DOI: 10.1007/s12975-023-01132-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 01/25/2023] [Accepted: 01/25/2023] [Indexed: 02/01/2023]
Abstract
Environmental enrichment (EE) refers to different forms of stimulation, where the environment is designed to improve the levels of sensory, cognitive, and motor stimuli, inducing stroke recovery in animal models. Stroke is a leading cause of mortality and neurological disability among older adults, hence the importance of developing strategies to improve recovery for such patients. This review provides an update on recent findings, compiling information regarding the parameters affected by EE exposure in both preclinical and clinical studies. During stroke recovery, EE exposure has been shown to improve both the cognitive and locomotor aspects, inducing important neuroplastic alterations, increased angiogenesis and neurogenesis, and modified gene expression, among other effects. There is a need for further research in this field, particularly in those aspects where the evidence is inconclusive. Moreover, it is necessary refine and adapt the EE paradigms for application in human patients.
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Affiliation(s)
- Laura Tartari Neves
- Programa de Pós-Graduação Em Biologia Celular E Molecular, Laboratório deBiologiaCelular ETecidual, Pontifical Catholic University of Rio Grande Do Sul, PUCRS. Escola de Ciências da Saúde E da Vida, Av. Ipiranga 6681, Prédio 12C, Sala 104, Porto Alegre, Rio Grande Do Sul, CEP, 90619-900, Brazil
| | - Lisiê Valéria Paz
- Programa de Pós-Graduação Em Biologia Celular E Molecular, Laboratório deBiologiaCelular ETecidual, Pontifical Catholic University of Rio Grande Do Sul, PUCRS. Escola de Ciências da Saúde E da Vida, Av. Ipiranga 6681, Prédio 12C, Sala 104, Porto Alegre, Rio Grande Do Sul, CEP, 90619-900, Brazil
| | - Andréa Wieck
- Programa de Pós-Graduação Em Biologia Celular E Molecular, Laboratório deBiologiaCelular ETecidual, Pontifical Catholic University of Rio Grande Do Sul, PUCRS. Escola de Ciências da Saúde E da Vida, Av. Ipiranga 6681, Prédio 12C, Sala 104, Porto Alegre, Rio Grande Do Sul, CEP, 90619-900, Brazil
- Brain Institute of Rio Grande do Sul (BraIns), Pontifical Catholic University of Rio Grande do Sul (PUCRS), Av. Ipiranga, 6690 - Jardim Botânico, Porto Alegre, RS, 90610-000, Brazil
| | - Régis Gemerasca Mestriner
- Programa de Pós-Graduação Em Biologia Celular E Molecular, Laboratório deBiologiaCelular ETecidual, Pontifical Catholic University of Rio Grande Do Sul, PUCRS. Escola de Ciências da Saúde E da Vida, Av. Ipiranga 6681, Prédio 12C, Sala 104, Porto Alegre, Rio Grande Do Sul, CEP, 90619-900, Brazil
| | - Valentina Aguiar Cardozo de Miranda Monteiro
- Programa de Pós-Graduação Em Biologia Celular E Molecular, Laboratório deBiologiaCelular ETecidual, Pontifical Catholic University of Rio Grande Do Sul, PUCRS. Escola de Ciências da Saúde E da Vida, Av. Ipiranga 6681, Prédio 12C, Sala 104, Porto Alegre, Rio Grande Do Sul, CEP, 90619-900, Brazil
| | - Léder Leal Xavier
- Programa de Pós-Graduação Em Biologia Celular E Molecular, Laboratório deBiologiaCelular ETecidual, Pontifical Catholic University of Rio Grande Do Sul, PUCRS. Escola de Ciências da Saúde E da Vida, Av. Ipiranga 6681, Prédio 12C, Sala 104, Porto Alegre, Rio Grande Do Sul, CEP, 90619-900, Brazil.
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11
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Song X, Zhang Y, Tang Z, Du L. Advantages of nanocarriers for basic research in the field of traumatic brain injury. Neural Regen Res 2024; 19:237-245. [PMID: 37488872 PMCID: PMC10503611 DOI: 10.4103/1673-5374.379041] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 04/01/2023] [Accepted: 05/06/2023] [Indexed: 07/26/2023] Open
Abstract
A major challenge for the efficient treatment of traumatic brain injury is the need for therapeutic molecules to cross the blood-brain barrier to enter and accumulate in brain tissue. To overcome this problem, researchers have begun to focus on nanocarriers and other brain-targeting drug delivery systems. In this review, we summarize the epidemiology, basic pathophysiology, current clinical treatment, the establishment of models, and the evaluation indicators that are commonly used for traumatic brain injury. We also report the current status of traumatic brain injury when treated with nanocarriers such as liposomes and vesicles. Nanocarriers can overcome a variety of key biological barriers, improve drug bioavailability, increase intracellular penetration and retention time, achieve drug enrichment, control drug release, and achieve brain-targeting drug delivery. However, the application of nanocarriers remains in the basic research stage and has yet to be fully translated to the clinic.
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Affiliation(s)
- Xingshuang Song
- School of Pharmaceutical Sciences, Shandong University of Traditional Chinese Medicine, Jinan, Shandong Province, China
- Department of Pharmaceutics, Beijing Institute of Radiation Medicine, Beijing, China
| | - Yizhi Zhang
- School of Pharmaceutical Sciences, Shandong University of Traditional Chinese Medicine, Jinan, Shandong Province, China
- Department of Pharmaceutics, Beijing Institute of Radiation Medicine, Beijing, China
| | - Ziyan Tang
- Department of Pharmaceutics, Beijing Institute of Radiation Medicine, Beijing, China
| | - Lina Du
- School of Pharmaceutical Sciences, Shandong University of Traditional Chinese Medicine, Jinan, Shandong Province, China
- Department of Pharmaceutics, Beijing Institute of Radiation Medicine, Beijing, China
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12
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Wang W, Lu D, Shi Y, Wang Y. Exploring the Neuroprotective Effects of Lithium in Ischemic Stroke: A literature review. Int J Med Sci 2024; 21:284-298. [PMID: 38169754 PMCID: PMC10758146 DOI: 10.7150/ijms.88195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 11/17/2023] [Indexed: 01/05/2024] Open
Abstract
Ischemic stroke ranks among the foremost clinical causes of mortality and disability, instigating neuronal degeneration, fatalities, and various sequelae. While standard treatments, such as intravenous thrombolysis and endovascular thrombectomy, prove effective, they come with limitations. Hence, there is a compelling need to develop neuroprotective agents capable of improving the functional outcomes of the nervous system. Numerous preclinical studies have demonstrated that lithium can act in multiple molecular pathways, including glycogen synthase kinase 3(GSK-3), the Wnt signaling pathway, the mitogen-activated protein kinase (MAPK)/ extracellular signal-regulated kinase (ERK) signaling pathway, brain-derived neurotrophic factor (BDNF), mammalian target of rapamycin (mTOR), and glutamate receptors. Through these pathways, lithium has been shown to affect inflammation, autophagy, apoptosis, ferroptosis, excitotoxicity, and other pathological processes, thereby improving central nervous system (CNS) damage caused by ischemic stroke. Despite these promising preclinical findings, the number of clinical trials exploring lithium's efficacy remains limited. Additional trials are imperative to thoroughly ascertain the effectiveness and safety of lithium in clinical settings. This review delineates the mechanisms underpinning lithium's neuroprotective capabilities in the context of ischemic stroke. It elucidates the intricate interplay between these mechanisms and sheds light on the involvement of mitochondrial dysfunction and inflammatory markers in the pathophysiology of ischemic stroke. Furthermore, the review offers directions for future research, thereby advancing the understanding of the potential therapeutic utility of lithium and establishing a theoretical foundation for its clinical application.
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Affiliation(s)
- Weihua Wang
- Department of Emergency, Affiliated Hospital of Weifang Medical University, Weifang, Shandong 261031, P.R. China
| | - Dunlin Lu
- Department of Emergency, Affiliated Hospital of Weifang Medical University, Weifang, Shandong 261031, P.R. China
| | - Youkui Shi
- Department of Emergency, Affiliated Hospital of Weifang Medical University, Weifang, Shandong 261031, P.R. China
| | - Yanqiang Wang
- Department of Neurology Ⅱ, Affiliated Hospital of Weifang Medical University, Weifang, Shandong 261031, P.R. China
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13
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Gao HM, Chen H, Cui GY, Hu JX. Damage mechanism and therapy progress of the blood-brain barrier after ischemic stroke. Cell Biosci 2023; 13:196. [PMID: 37915036 PMCID: PMC10619327 DOI: 10.1186/s13578-023-01126-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Accepted: 09/04/2023] [Indexed: 11/03/2023] Open
Abstract
The blood-brain barrier (BBB) serves as a defensive line protecting the central nervous system, while also maintaining micro-environment homeostasis and inhibiting harmful materials from the peripheral blood. However, the BBB's unique physiological functions and properties make drug delivery challenging for patients with central nervous system diseases. In this article, we briefly describe the cell structure basis and mechanism of action of the BBB, as well as related functional proteins involved. Additionally, we discuss the various mechanisms of BBB damage following the onset of an ischemic stroke, and lastly, we mention several therapeutic strategies accounting for impairment mechanisms. We hope to provide innovative ideas for drug delivery research via the BBB.
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Affiliation(s)
- Hui-Min Gao
- Institute of Stroke Research, Xuzhou Medical University, Jiangsu, China
| | - Hao Chen
- Department of Neurology, The Affiliated Hospital of Xuzhou Medical University, Jiangsu, China
| | - Gui-Yun Cui
- Institute of Stroke Research, Xuzhou Medical University, Jiangsu, China
- Department of Neurology, The Affiliated Hospital of Xuzhou Medical University, Jiangsu, China
| | - Jin-Xia Hu
- Institute of Stroke Research, Xuzhou Medical University, Jiangsu, China.
- Department of Neurology, The Affiliated Hospital of Xuzhou Medical University, Jiangsu, China.
- School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou, 221116, China.
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14
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Chen WW, Sun FQ, Wang B, Tian XX, Zhang RP, Liu WB. T817MA Regulates Mitochondrial Dynamics via Sirt1 and Arc Following Subarachnoid Hemorrhage. Neuroscience 2023; 531:1-11. [PMID: 37385332 DOI: 10.1016/j.neuroscience.2023.06.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 06/14/2023] [Accepted: 06/22/2023] [Indexed: 07/01/2023]
Abstract
Spontaneous subarachnoid hemorrhage (SAH) is an acute neurologic emergency with poor outcomes, and mitochondrial dysfunction is known as one of the key pathological mechanisms underlying the SAH-induced early brain injury (EBI). 1-{3-[2-(1-benzothiophen-5-yl)ethoxy]propyl} azetidin-3-ol maleate (T817MA) is a newly synthesized neurotrophic compound that has been demonstrated to exert protective effects against brain injury. Here, we investigated the effect of T817MA in neuronal injury following experimental SAH both in vitro and in vivo. Primary cultured cortical neurons were treated with oxyhemoglobin (OxyHb) to mimic SAH in vitro, and T817MA at concentrations higher than 0.1 μM reduced OxyHb-induced neuronal injury. T817MA treatment significantly inhibited lipid peroxidation, reduced neuronal apoptosis and attenuated mitochondrial fragmentation. The results of western blot showed that T817MA markedly reduced the expression of mitochondrial fission proteins, fission protein 1 (Fis-1) and dynamin-related GTPase-1 (Drp-1), but prolonged the expression of the postsynaptic protein activity-regulated cytoskeleton-associated protein (Arc). In addition, T817MA significantly increased the expression of sirtuin 1 (Sirt1), which was accompanied by preserved enzymatic of isocitrate dehydrogenase (IDH2) and superoxide dismutase (SOD). Knockdown of Sirt1 and Arc via small interfere RNA (siRNA) transfection partially prevented the T817MA-induced protection in cortical neurons. Furthermore, treatment with T817MA in vivo significantly reduced brain damage and preserved neurological function in rats. The decreased expression of Fis-1 and Drp-1, as well as the increased expression of Arc and Sirt1 were also observed in vivo. Taken together, these data indicate that the neuroprotective agent T817MA protects against SAH-induced brain injury via Sirt1- and Arc-mediated regulation of mitochondrial dynamics.
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Affiliation(s)
- Wei-Wei Chen
- Central Laboratory, The First Affiliated Hospital of Weifang Medical University, Weifang Medical University, Weifang, Shandong 261000, China; Naval Medical Center of PLA, Naval Medical University of PLA, Shanghai 200052, China
| | - Fu-Qiang Sun
- Central Laboratory, The First Affiliated Hospital of Weifang Medical University, Weifang Medical University, Weifang, Shandong 261000, China
| | - Bo Wang
- Central Laboratory, The First Affiliated Hospital of Weifang Medical University, Weifang Medical University, Weifang, Shandong 261000, China
| | - Xiao-Xiao Tian
- Naval Medical Center of PLA, Naval Medical University of PLA, Shanghai 200052, China
| | - Rong-Ping Zhang
- Department of Surgery, Shanghai Songjiang Sijing Hospital, Shanghai 200052, China
| | - Wen-Bo Liu
- Central Laboratory, The First Affiliated Hospital of Weifang Medical University, Weifang Medical University, Weifang, Shandong 261000, China.
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15
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Zhuo R, Song Z, Wang Y, Zhu M, Liu F, Lin P, Rao R, Zhou Y, Zhao Y, Fan Z, Cui L, Liu H, Li J, Li Y, Guo H, Cai CF, Yang L. Oleoylethanolamide ameliorates motor dysfunction through PPARα-mediates oligodendrocyte differentiation and white matter integrity after ischemic stroke. Phytother Res 2023; 37:5341-5353. [PMID: 37700535 DOI: 10.1002/ptr.7970] [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: 04/02/2022] [Revised: 05/31/2023] [Accepted: 06/03/2023] [Indexed: 09/14/2023]
Abstract
BACKGROUND AND AIM Our previous study has revealed that OEA promotes motor function recovery in the chronic stage of ischemic stroke. However, the neuroprotective mechanism of OEA on motor function recovery after stroke still is unexplored. Therefore, the aim of this study was to explore the effects of OEA treatment on angiogenesis, neurogenesis, and white matter repair in the peri-infarct region after cerebral ischemia. EXPERIMENTAL PROCEDURE The adult male rats were subjected to 2 h of middle cerebral artery occlusion. The rats were treated with 10 and 30 mg/kg OEA or vehicle daily starting from day 2 after ischemia induction until they were sacrificed. KEY RESULTS AND CONCLUSIONS The results revealed that OEA increased cortical angiogenesis, neural progenitor cells (NPCs) proliferation, migration, and differentiation. OEA treatment enhanced the survival of newborn neurons and oligodendrogenesis, which eventually repaired the cortical neuronal injury and improved motor function after ischemic stroke. Meanwhile, OEA treatment promoted the differentiation of oligodendrocyte progenitor cells (OPCs) and oligodendrogenesis by activating the PPARα signaling pathway. Our results showed that OEA restores motor function by facilitating cortical angiogenesis, neurogenesis, and white matter repair in rats after ischemic stroke. Therefore, we demonstrate that OEA facilitates functional recovery after ischemic stroke and propose the hypothesis that the long-term application of OEA mitigates the disability after stroke.
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Affiliation(s)
- Rengong Zhuo
- The Fifth Hospital of Xiamen & Institute of Cardiovascular Diseases, Xiamen Cardiovascular Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Zhengmao Song
- The Fifth Hospital of Xiamen & Institute of Cardiovascular Diseases, Xiamen Cardiovascular Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Yun Wang
- The Fifth Hospital of Xiamen & Institute of Cardiovascular Diseases, Xiamen Cardiovascular Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Maoshu Zhu
- The Fifth Hospital of Xiamen & Institute of Cardiovascular Diseases, Xiamen Cardiovascular Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Feng Liu
- The Fifth Hospital of Xiamen & Institute of Cardiovascular Diseases, Xiamen Cardiovascular Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Pingli Lin
- The Fifth Hospital of Xiamen & Institute of Cardiovascular Diseases, Xiamen Cardiovascular Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Rong Rao
- The Fifth Hospital of Xiamen & Institute of Cardiovascular Diseases, Xiamen Cardiovascular Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Yu Zhou
- The Fifth Hospital of Xiamen & Institute of Cardiovascular Diseases, Xiamen Cardiovascular Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Yun Zhao
- The Fifth Hospital of Xiamen & Institute of Cardiovascular Diseases, Xiamen Cardiovascular Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Zhongxiong Fan
- Institute of Materia Medica, Xinjiang University, Urumqi, China
| | - Lishan Cui
- The Fifth Hospital of Xiamen & Institute of Cardiovascular Diseases, Xiamen Cardiovascular Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Hongtao Liu
- Department of Pharmacy, The First Hospital of Hebei Medical University, Shijiazhuang, China
| | - Jingwen Li
- Xiang'an Hospital of Xiamen University, Xiamen, China
| | - Ying Li
- Xiamen Medical College, Xiamen, China
| | - Han Guo
- The Huadong Hospital Affiliated to Fudan University, Shanghai, China
| | - Cheng Fu Cai
- Department of Otorhinolaryngology Head and Neck Surgery, Zhongshan Hospital School of Medicine, Xiamen University, Xiamen, China
- Teaching Hospital of Fujian Medical University, Fuzhou, China
| | - Lichao Yang
- The Fifth Hospital of Xiamen & Institute of Cardiovascular Diseases, Xiamen Cardiovascular Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
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16
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Qin YY, Pan SY, Dai JR, Wang QM, Luo X, Qin ZH, Luo L. Alleviation of ischemic brain injury by exercise preconditioning is associated with modulation of autophagy and mitochondrial dynamics in cerebral cortex of female aged mice. Exp Gerontol 2023; 178:112226. [PMID: 37257699 DOI: 10.1016/j.exger.2023.112226] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 05/17/2023] [Accepted: 05/27/2023] [Indexed: 06/02/2023]
Abstract
Evidence from clinical studies and preclinical studies supports that exercise preconditioning can not only reduce the risk of stroke but also improve brain tissue and functional outcome after stroke. It has been demonstrated that autophagy and mitochondrial dynamics are involved in ischemic stroke. However, it is still unclear whether exercise preconditioning-induced neuroprotection against stroke is associated with modulation of autophagy and mitochondrial dynamics. Although age and sex interactively affect ischemic stroke risk, incidence, and outcome, studies based on young male animals are most often used to explore the role of exercise preconditioning in the prevention of ischemic stroke. In the current study, we examined whether exercise preconditioning could modulate autophagy and mitochondrial dynamics in a brain ischemia and reperfusion (I/R) model of female aged mice. The results showed that exercise preconditioning reduced infarct volume and improved neurological deficits. Additionally, increased levels of autophagy-related proteins LC3-II/LC3-I, LC3-II, p62, Atg7, and mitophagy-related proteins Bnip3L and Parkin, as well as increased levels of mitochondrial fusion modulator Mfn2 and mitochondrial fission modulator Drp1 in the ischemic cortex of female aged mice at 12 h after I/R were present. Our results could contribute to a better understanding of exercise preconditioning-induced neuroprotection against ischemic stroke for the elderly.
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Affiliation(s)
- Yuan-Yuan Qin
- Suzhou TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Suzhou 215009, Jiangsu Province, China; Department of Pharmacy, Suzhou Hospital of Traditional Chinese Medicine, Suzhou, Jiangsu 215009, China
| | - Shan-Yao Pan
- School of Physical Education and Sports Science, Soochow University; Suzhou 215021, China
| | - Jia-Ru Dai
- School of Physical Education and Sports Science, Soochow University; Suzhou 215021, China
| | - Qing-Mei Wang
- Stroke Biological Recovery Laboratory, Spaulding Rehabilitation Hospital, Teaching Affiliate of Harvard Medical School, Charlestown, MA, USA
| | - Xun Luo
- Kerry Rehabilitation Medicine Research Institute, Shenzhen, China
| | - Zheng-Hong Qin
- Department of Pharmacology and Laboratory of Aging and Nervous Diseases (SZS0703); Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases, Soochow University School of Pharmaceutical Science; Suzhou 215123, China
| | - Li Luo
- School of Physical Education and Sports Science, Soochow University; Suzhou 215021, China.
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17
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Huang A, Ji L, Li Y, Li Y, Yu Q. Gut microbiome plays a vital role in post-stroke injury repair by mediating neuroinflammation. Int Immunopharmacol 2023; 118:110126. [PMID: 37031605 DOI: 10.1016/j.intimp.2023.110126] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 03/18/2023] [Accepted: 03/29/2023] [Indexed: 04/11/2023]
Abstract
Cerebral stroke is a common neurological disease and often causes severe neurological deficits. With high morbidity, mortality, and disability rates, stroke threatens patients' life quality and brings a heavy economic burden on society. Ischemic cerebral lesions incur pathological changes as well as spontaneous nerve repair following stroke. Strategies such as drug therapy, physical therapy, and surgical treatment, can ameliorate blood and oxygen supply in the brain, hamper the inflammatory responses and maintain the structural and functional integrity of the brain. The gut microbiome, referred to as the "second genome" of the human body, participates in the regulation of multiple physiological functions including metabolism, digestion, inflammation, and immunity. The gut microbiome is not only inextricably associated with dangerous factors pertaining to stroke, including high blood pressure, diabetes, obesity, and atherosclerosis, but also influences stroke occurrence and prognosis. AMPK functions as a hub of metabolic control and is responsible for the regulation of metabolic events under physiological and pathological conditions. The AMPK mediators have been found to exert dual roles in regulating gut microbiota and neuroinflammation/neuronal apoptosis in stroke. In this study, we reviewed the role of the gut microbiome in cerebral stroke and the underlying mechanism of the AMPK signaling pathway in stroke. AMPK mediators in nerve repair and the regulation of intestinal microbial balance were also summarized.
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Affiliation(s)
- Airu Huang
- Department of Rehabilitation Medicine, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, Sichuan 610072, China
| | - Ling Ji
- Department of Rehabilitation Medicine, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, Sichuan 610072, China
| | - Yamei Li
- Department of Rehabilitation Medicine, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, Sichuan 610072, China
| | - Yufeng Li
- Department of Rehabilitation Medicine, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, Sichuan 610072, China.
| | - Qian Yu
- Department of Rehabilitation Medicine, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, Chengdu, Sichuan 610072, China.
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18
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Yang X, Liu Y, Zhong W, Li Y, Zhang W. Netrin-1 attenuates cerebral ischemia/reperfusion injury by limiting mitochondrial ROS and Ca 2+ levels via activation of AKT phosphorylation and mitochondrial m-AAA protease AFG3L2. FASEB J 2023; 37:e22805. [PMID: 36786711 DOI: 10.1096/fj.202201739r] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 01/04/2023] [Accepted: 01/24/2023] [Indexed: 02/15/2023]
Abstract
Cerebral ischemia-reperfusion (I/R) injury as the consequence of revascularization after ischemic stroke is associated with mitochondrial dysfunction, oxidative stress, and neuron loss. In this study, we used a deprivation/reoxygenation (OGD/R) model to determine whether interactions between Netrin-1, AKT, and the mitochondrial AAA protease AFG3L2 could influence mitochondrial function in neurons after I/R. We found that Netrin-1 protects primary cortical neurons from OGD/R-induced cell death and regulates mitochondrial reactive oxygen species (ROS) and Ca2+ levels. The accumulation of mitochondrial calcium uniporter (MCU) subunits was monitored in cells by immunoblot analysis. Although the regulatory subunits MICU1 and MICU2 were relatively unaffected, the accumulation of the essential MCU regulator (EMRE) subunit was impaired. In OGD/R-induced cells, the 7 kDa form of EMRE was significantly reduced. Netrin-1 inhibited the accumulation of EMRE and mitochondrial Ca2+ levels by upregulating AFG3L2 and AKT activation. Loss of AFG3L2 or inhibition of AKT increased levels of 7 kDa EMRE. Moreover, overexpression of AKT increased the expression of AFG3L2 in Netrin-1-knockdown neurons after OGD/R. Our results demonstrate that Netrin-1 enhanced AFG3L2 protein expression via activation of AKT. We also observed that overexpression of Netrin-1 significantly reduced infarction size in an I/R-induced brain injury model in rats but not when AKT was inhibited. Our data suggest that AFG3L2 is a protein substrate of AKT and indicate that Netrin-1 attenuates cerebral I/R injury by limiting mitochondrial ROS and Ca2+ levels through activating AKT phosphorylation and AFG3L2.
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Affiliation(s)
- Xiaosheng Yang
- Department of Neurosurgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yang Liu
- Department of Ultrasound, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Weijie Zhong
- Department of Neurosurgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yi Li
- Department of Neurosurgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wenchuan Zhang
- Department of Neurosurgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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19
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Sarmah D, Sarkar A, Datta A, Ghosh B, Rana N, Sahu S, Gupta V, Thongire V, Chaudhary A, Vadak N, Kaur H, Raut S, Singh U, Borah A, Bhattacharya P. Cardiolipin-Mediated Alleviation of Mitochondrial Dysfunction Is a Neuroprotective Effect of Statin in Animal Model of Ischemic Stroke. ACS Chem Neurosci 2023; 14:709-724. [PMID: 36706354 DOI: 10.1021/acschemneuro.2c00645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
In clinical settings, the benefit of statin for stroke is debatable as regular statin users may suffer from myalgia, statin-associated myopathy (SAM), and rarely rhabdomyolysis. Studies suggest that patients on statin therapy show lesser vulnerability toward ischemic stroke and post-stroke frailty. Both pre- and post-treatment benefits of statin have been reported as evident by its neuroprotective effects in both cases. As mitochondrial dysfunction following stroke is the fulcrum for neuronal death, we hereby explore the role of statin in alleviating mitochondrial dysfunction by regulating the mitochondrial dynamics. In the present study, we intend to evaluate the role of statin in modulating cardiolipin-mediated mitochondrial functionality and further providing a therapeutic rationale for repurposing statins either as preventive or an adjunctive therapy for stroke.
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Affiliation(s)
- Deepaneeta Sarmah
- Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, Gujarat 382355, India
| | - Abhishek Sarkar
- Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, Gujarat 382355, India
| | - Aishika Datta
- Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, Gujarat 382355, India
| | - Bijoyani Ghosh
- Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, Gujarat 382355, India
| | - Nikita Rana
- Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, Gujarat 382355, India
| | - Shubhrakanta Sahu
- Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, Gujarat 382355, India
| | - Vishal Gupta
- Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, Gujarat 382355, India
| | - Vrushali Thongire
- Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, Gujarat 382355, India
| | - Antra Chaudhary
- Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, Gujarat 382355, India
| | - Namrata Vadak
- Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, Gujarat 382355, India
| | - Harpreet Kaur
- Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, Gujarat 382355, India
| | - Swapnil Raut
- Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, Gujarat 382355, India
| | - Upasna Singh
- Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, Gujarat 382355, India
| | - Anupom Borah
- Cellular and Molecular Neurobiology Laboratory, Department of Life Science and Bioinformatics, Assam University, Silchar, Assam 788011, India
| | - Pallab Bhattacharya
- Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, Gujarat 382355, India
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20
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Beresewicz-Haller M. Hippocampal region-specific endogenous neuroprotection as an approach in the search for new neuroprotective strategies in ischemic stroke. Fiction or fact? Neurochem Int 2023; 162:105455. [PMID: 36410452 DOI: 10.1016/j.neuint.2022.105455] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 11/03/2022] [Accepted: 11/17/2022] [Indexed: 11/23/2022]
Abstract
Ischemic stroke is the leading cause of death and long-term disability worldwide, and, while considerable progress has been made in understanding its pathophysiology, the lack of effective treatments remains a major concern. In that context, receiving more and more consideration as a promising therapeutic method is the activation of natural adaptive mechanisms (endogenous neuroprotection) - an approach that seeks to enhance and/or stimulate the endogenous processes of plasticity and protection of the neuronal system that trigger the brain's intrinsic capacity for self-defence. Ischemic preconditioning is a classic example of endogenous neuroprotection, being the process by which one or more brief, non-damaging episodes of ischemia-reperfusion (I/R) induce tissue resistance to subsequent prolonged, damaging ischemia. Another less-known example is resistance to an I/R episode mounted by the hippocampal region consisting of CA2, CA3, CA4 and the dentate gyrus (here abbreviated to CA2-4, DG). This can be contrasted with the ischemia-vulnerable CA1 region. There is not yet a good understanding of these different sensitivities of the hippocampal regions, and hence of the endogenous neuroprotection characteristic of CA2-4, DG. However, this region is widely reported to have properties distinct from CA1, and capable of generating resistance to an I/R episode. These include activation of neurotrophic and neuroprotective factors, greater activation of anti-excitotoxic and anti-oxidant mechanisms, increased plasticity potential, a greater energy reserve and improved mitochondrial function. This review seeks to summarize properties of CA2-4, DG in the context of endogenous neuroprotection, and then to assess the potential utility of these properties to therapeutic approaches. In so doing, it appears to represent the first such addressing of the issue of ischemia resistance attributable to CA2-4, DG.
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21
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Liu L, Chen D, Zhou Z, Yuan J, Chen Y, Sun M, Zhou M, Liu Y, Sun S, Chen J, Zhao L. Traditional Chinese medicine in treating ischemic stroke by modulating mitochondria: A comprehensive overview of experimental studies. Front Pharmacol 2023; 14:1138128. [PMID: 37033646 PMCID: PMC10073505 DOI: 10.3389/fphar.2023.1138128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 03/10/2023] [Indexed: 04/11/2023] Open
Abstract
Ischemic stroke has been a prominent focus of scientific investigation owing to its high prevalence, complex pathogenesis, and difficulties in treatment. Mitochondria play an important role in cellular energy homeostasis and are involved in neuronal death following ischemic stroke. Hence, maintaining mitochondrial function is critical for neuronal survival and neurological improvement in ischemic stroke, and mitochondria are key therapeutic targets in cerebral stroke research. With the benefits of high efficacy, low cost, and high safety, traditional Chinese medicine (TCM) has great advantages in preventing and treating ischemic stroke. Accumulating studies have explored the effect of TCM in preventing and treating ischemic stroke from the perspective of regulating mitochondrial structure and function. In this review, we discuss the molecular mechanisms by which mitochondria are involved in ischemic stroke. Furthermore, we summarized the current advances in TCM in preventing and treating ischemic stroke by modulating mitochondria. We aimed to provide a new perspective and enlightenment for TCM in the prevention and treatment of ischemic stroke by modulating mitochondria.
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Affiliation(s)
- Lu Liu
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Daohong Chen
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Ziyang Zhou
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Jing Yuan
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Ying Chen
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Mingsheng Sun
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Mengdi Zhou
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Yi Liu
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Shiqi Sun
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Jiao Chen
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
- Acupuncture and Chronobiology Key Laboratory of Sichuan Province, Chengdu, Sichuan, China
- *Correspondence: Ling Zhao, ; Jiao Chen,
| | - Ling Zhao
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
- Acupuncture and Chronobiology Key Laboratory of Sichuan Province, Chengdu, Sichuan, China
- *Correspondence: Ling Zhao, ; Jiao Chen,
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22
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Fatty acid-binding proteins 3 and 5 are involved in the initiation of mitochondrial damage in ischemic neurons. Redox Biol 2022; 59:102547. [PMID: 36481733 PMCID: PMC9727700 DOI: 10.1016/j.redox.2022.102547] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 11/15/2022] [Accepted: 11/17/2022] [Indexed: 11/27/2022] Open
Abstract
We have previously shown that a fatty acid-binding protein7 (FABP7) inhibitor ameliorates cerebral ischemia-reperfusion injury in mice, suggesting an association between FABPs and ischemic neuronal injury. However, the precise role of FABPs in ischemic neuronal injury remains unclear. In this study, we investigated the role of FABPs in ischemia-reperfusion neuronal injury. FABP3, FABP5, and FABP7 were upregulated in the ischemic penumbra regions in mice. However, only FABP3 and FABP5 were expressed in injured neurons. Furthermore, FABP3 and FABP5 accumulated in the mitochondria of ischemic neurons. Overexpressing either FABP3 or FABP5 aggravated the reduced mitochondrial membrane potential and induced cell death in human neuroblastoma SH-SY5Y cells during oxidative stress. This damage was mediated by the formation of BAX-containing pores in the mitochondrial membrane. Moreover, FABP5 mediates lipid peroxidation and generates toxic by-products (i.e., 4-HNE) in SH-SY5Y cells. HY11-08 (HY08), a novel FABP3 and 5 inhibitor that does not act on FABP7, significantly reduced cerebral infarct volume and blocked FABP3/5-induced mitochondrial damage, including lipid peroxidation and BAX-related apoptotic signaling. Thus, FABP3 and FABP5 are key players in triggering mitochondrial damage in ischemic neurons. In addition, the novel FABP inhibitor, HY08, may be a potential neuroprotective treatment for ischemic stroke.
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Griffiths B, Xu L, Sun X, Greer M, Murray I, Stary C. Inhibition of microRNA-200c preserves astrocyte sirtuin-1 and mitofusin-2, and protects against hippocampal neurodegeneration following global cerebral ischemia in mice. Front Mol Neurosci 2022; 15:1014751. [PMID: 36466801 PMCID: PMC9710226 DOI: 10.3389/fnmol.2022.1014751] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 10/25/2022] [Indexed: 11/18/2022] Open
Abstract
Memory impairment remains a leading disability in survivors of global cerebral ischemia, occurring secondary to delayed neurodegeneration of hippocampal cornu ammonis-1 (CA1) neurons. MicroRNA-200c (miR-200c) is induced following ischemic stress and we have previously demonstrated that pre-treatment with anti-miR-200c is protective against embolic stroke in mice. In the present study we assessed the role of miR-200c on CA1 neurodegeneration, sirtuin-1 (SIRT1), and mitochondrial dynamic protein expression in a mouse model of transient global cerebral ischemia and in vitro in primary mouse astrocyte cultures after simulated ischemia. Mice were subjected to 10 min bilateral common carotid artery occlusion plus hypotension with 5% isoflurane. After 2 h recovery mice were treated with intravenous injection of either anti-miR-200c or mismatch control. Memory function was assessed by Barnes maze at post-injury days 3 and 7. Mice were sacrificed at post-injury day 7 for assessment of brain cell-type specific expression of miR-200c, SIRT1, and the mitochondrial fusion proteins mitofusin-2 (MFN2) and OPA1 via complexed fluorescent in situ hybridization and fluorescent immunohistochemistry. Global cerebral ischemia induced significant loss of CA1 neurons, impaired memory performance and decreased expression of CA1 SIRT1, MFN2, and OPA1. Post-injury treatment with anti-miR-200c significantly improved survival, prevented CA1 neuronal loss, improved post-injury performance in Barnes maze, and was associated with increased post-injury expression of CA1 SIRT1 and MFN2 in astrocytes. In vitro, primary mouse astrocyte cultures pre-treated with miR-200c inhibitor prior to oxygen/glucose deprivation preserved expression of SIRT1 and MFN2, and decreased reactive oxygen species generation, whereas pre-treatment with miR-200c mimic had opposite effects that could be reversed by co-treatment with SIRT1 activator. These results suggest that miR-200c regulates astrocyte mitochondrial homeostasis via targeting SIRT1, and that CA1 astrocyte mitochondria and SIRT1 represent potential post-injury therapeutic targets to preserve cognitive function in survivors of global cerebral ischemia.
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Affiliation(s)
- Brian Griffiths
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Lijun Xu
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Xiaoyun Sun
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Majesty Greer
- Howard University College of Medicine, Washington, DC, United States
| | - Isabella Murray
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Creed Stary
- Department of Anesthesiology, Perioperative and Pain Medicine, Stanford University School of Medicine, Stanford, CA, United States,*Correspondence: Creed Stary,
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24
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Kim SY, Strucinska K, Osei B, Han K, Kwon SK, Lewis TL. Neuronal mitochondrial morphology is significantly affected by both fixative and oxygen level during perfusion. Front Mol Neurosci 2022; 15:1042616. [PMID: 36407767 PMCID: PMC9667081 DOI: 10.3389/fnmol.2022.1042616] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 10/17/2022] [Indexed: 03/31/2023] Open
Abstract
Neurons in the brain have a uniquely polarized structure consisting of multiple dendrites and a single axon generated from a cell body. Interestingly, intracellular mitochondria also show strikingly polarized morphologies along the dendrites and axons: in cortical pyramidal neurons (PNs), dendritic mitochondria have a long and tubular shape, while axonal mitochondria are small and circular. Mitochondria play important roles in each compartment of the neuron by generating adenosine triphosphate (ATP) and buffering calcium, thereby affecting synaptic transmission and neuronal development. In addition, mitochondrial shape, and thereby function, is dynamically altered by environmental stressors such as oxidative stress or in various neurodegenerative diseases including Alzheimer's disease and Parkinson's disease. Although the importance of altered mitochondrial shape has been claimed by multiple studies, methods for studying this stress-sensitive organelle have not been standardized. Here we address pertinent steps that influence mitochondrial morphology during experimental processes. We demonstrate that fixative solutions containing only paraformaldehyde (PFA), or that introduce hypoxic conditions during the procedure, induce dramatic fragmentation of mitochondria both in vitro and in vivo. This disruption was not observed following the use of glutaraldehyde (GA) addition or oxygen supplementation, respectively. Finally, using pre-formed fibril α-synuclein treated neurons, we show fixative choice can alter experimental outcomes. Specifically, α-synuclein-induced mitochondrial remodeling could not be observed with PFA only fixation as fixation itself caused mitochondrial fragmentation. Our study provides optimized methods for examining mitochondrial morphology in neurons and demonstrates that fixation conditions are critical when investigating the underlying cellular mechanisms involving mitochondria in physiological and neurodegenerative disease models.
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Affiliation(s)
- Su Yeon Kim
- Brain Science Institute, Korea Institute of Science and Technology (KIST), Seoul, South Korea
- Department of Neuroscience, College of Medicine, Korea University, Seoul, South Korea
| | - Klaudia Strucinska
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, United States
| | - Bertha Osei
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, United States
| | - Kihoon Han
- Department of Neuroscience, College of Medicine, Korea University, Seoul, South Korea
| | - Seok-Kyu Kwon
- Brain Science Institute, Korea Institute of Science and Technology (KIST), Seoul, South Korea
- Division of Bio-Medical Science and Technology, KIST School, Korea University of Science and Technology (UST), Daejeon, South Korea
| | - Tommy L. Lewis
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, United States
- Departments of Biochemistry & Molecular Biology, Neuroscience and Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, United States
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25
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Fyn Signaling in Ischemia-Reperfusion Injury: Potential and Therapeutic Implications. Mediators Inflamm 2022; 2022:9112127. [PMID: 36157893 PMCID: PMC9499810 DOI: 10.1155/2022/9112127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 08/20/2022] [Accepted: 08/27/2022] [Indexed: 11/18/2022] Open
Abstract
Ischemic stroke caused by arterial occlusion is the most common type of stroke and is one of the leading causes of disability and death, with the incidence increasing each year. Fyn is a nonreceptor tyrosine kinase belonging to the Src family of kinases (SFKs), which is related to many normal and pathological processes of the nervous system, including neurodevelopment and disease progression. In recent years, more and more evidence suggests that Fyn may be closely related to cerebral ischemia-reperfusion, including energy metabolism disorders, excitatory neurotoxicity, intracellular calcium homeostasis, free radical production, and the activation of apoptotic genes. This paper reviews the role of Fyn in the pathological process of cerebral ischemia-reperfusion, including neuroexcitotoxicity and neuroinflammation, to explore how Fyn affects specific signal cascades and leads to cerebral ischemia-reperfusion injury. In addition, Fyn also promotes the production of superoxide and endogenous NO, so as to quickly react to produce peroxynitrite, which may also mediate cerebral ischemia-reperfusion injury, which is discussed in this paper. Finally, we revealed the treatment methods related to Fyn inhibitors and discussed its potential as a clinical treatment for ischemic stroke.
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26
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Fathima N, Manorenj S, Vishwakarma SK, Khan AA. Role of cell-free DNA for predicting incidence and outcome of patients with ischemic stroke. World J Neurol 2022; 8:1-9. [DOI: 10.5316/wjn.v8.i1.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 06/11/2022] [Accepted: 07/31/2022] [Indexed: 02/08/2023] Open
Abstract
Early diagnosis and prognosis of ischemic stroke remains a critical challenge in clinical settings. A blood biomarker can be a promising quantitative tool to represent the clinical manifestations in ischemic stroke. Cell-free DNA (cfDNA) has recently turned out to be a popular circulating biomarker due to its potential relevance for diagnostic applications in a variety of disorders. Despite bright outlook of cfDNA in clinical applications, very less is known about its origin, composition, or function. Several recent studies have identified cell-derived mitochondrial components including mitochondrial DNA (mtDNA) in the extracellular spaces including blood and cerebrospinal fluid. However, the time course of alterations in plasma mtDNA concentrations in patients after an ischemic stroke is poorly understood. DNA is thought to be freed into the plasma shortly after the commencement of an ischemic stroke and then gradually decreased. However, the importance of cell-free mtDNA (cf-mtDNA) in ischemic stroke is still unknown. This review summarizes about the utility of biomarkers which has been standardized in clinical settings and role of cfDNA including cf-mtDNA as a non-invasive potential biomarker of ischemic stroke.
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Affiliation(s)
- Nusrath Fathima
- Central Laboratory for Stem Cell Research and Translational Medicine, Centre for Liver Research and Diagnostics, Deccan College of Medical Sciences, Hyderabad 500058, Telangana, India
| | - Sandhya Manorenj
- Department of Neurology, Princess Esra Hospital, Deccan College of Medical Sciences, Hyderabad 500002, Telangana, India
| | - Sandeep Kumar Vishwakarma
- Central Laboratory for Stem Cell Research and Translational Medicine, Centre for Liver Research and Diagnostics, Deccan College of Medical Sciences, Hyderabad 500058, Telangana, India
| | - Aleem Ahmed Khan
- Central Laboratory for Stem Cell Research and Translational Medicine, Centre for Liver Research and Diagnostics, Deccan College of Medical Sciences, Hyderabad 500058, Telangana, India
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27
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Xu S, Wei W, Zhang F, Chen T, Dong L, Shi J, Wu X, Zhang T, Li Z, Zhang J, Li X, Chen J. Transcriptomic Profiling of Intracranial Arteries in Adult Patients With Moyamoya Disease Reveals Novel Insights Into Its Pathogenesis. Front Mol Neurosci 2022; 15:881954. [PMID: 35711733 PMCID: PMC9197469 DOI: 10.3389/fnmol.2022.881954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 04/01/2022] [Indexed: 11/24/2022] Open
Abstract
Moyamoya disease (MMD) is a rare, progressively steno-occlusive cerebrovascular disorder of unknown etiology. Here, we revealed the gene expression profile of the intracranial arteries in MMD via the RNA-sequencing (RNA-seq). We identified 556 differentially expressed genes (DEGs) for MMD, including 449 and 107 significantly upregulated or downregulated genes. Compared with atherosclerosis-associated intracranial artery stenosis/occlusion (AS-ICASO) controls, upregulated genes were mainly involved in extracellular matrix (ECM) organization, whereas downregulated genes were primarily associated with mitochondrial function and oxidative phosphorylation in MMD. Moreover, we found that a separate sex analysis uncovers more DEGs (n = 1.022) compared to an combined sex analysis in MMD. We identified 133 and 439 sex-specific DEGs for men and women in MMD, respectively. About 95.6% of sex-specific DEGs were protein-coding genes and 3% of the genes belonged to long non-coding RNAs (lncRNA). Sex-specific DEGs were observed on all chromosomes, of which 95.49 and 96.59% were autosomal genes in men and women, respectively. These sex-specific DEGs, such as aquaporin-4 (AQP4), superoxide dismutase 3 (SOD3), and nuclear receptor subfamily 4 group A member 1 (NR4A1), may contribute to sex differences in MMD. This transcriptomic study highlighted that ECM and mitochondrial function are the central molecular mechanisms underlying MMD, and revealed sex differences in the gene expression in the intracranial arteries, thereby providing new insights into the pathogenesis of MMD.
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Affiliation(s)
- Shuangxiang Xu
- Department of Neurosurgery, Zhongnan Hospital, Wuhan University, Wuhan, China
- Brain Research Center, Zhongnan Hospital, Wuhan University, Wuhan, China
| | - Wei Wei
- Department of Neurosurgery, Zhongnan Hospital, Wuhan University, Wuhan, China
- Brain Research Center, Zhongnan Hospital, Wuhan University, Wuhan, China
| | - Feiyang Zhang
- Department of Neurosurgery, Zhongnan Hospital, Wuhan University, Wuhan, China
- Brain Research Center, Zhongnan Hospital, Wuhan University, Wuhan, China
| | - Tongyu Chen
- Department of Neurosurgery, Zhongnan Hospital, Wuhan University, Wuhan, China
- Brain Research Center, Zhongnan Hospital, Wuhan University, Wuhan, China
| | - Lixin Dong
- Department of Neurosurgery, Zhongnan Hospital, Wuhan University, Wuhan, China
- Brain Research Center, Zhongnan Hospital, Wuhan University, Wuhan, China
| | - Jichun Shi
- Department of Neurosurgery, Zhongnan Hospital, Wuhan University, Wuhan, China
- Brain Research Center, Zhongnan Hospital, Wuhan University, Wuhan, China
| | - Xiaolin Wu
- Department of Neurosurgery, Zhongnan Hospital, Wuhan University, Wuhan, China
- Brain Research Center, Zhongnan Hospital, Wuhan University, Wuhan, China
| | - Tingbao Zhang
- Department of Neurosurgery, Zhongnan Hospital, Wuhan University, Wuhan, China
- Brain Research Center, Zhongnan Hospital, Wuhan University, Wuhan, China
| | - Zhengwei Li
- Department of Neurosurgery, Zhongnan Hospital, Wuhan University, Wuhan, China
- Brain Research Center, Zhongnan Hospital, Wuhan University, Wuhan, China
| | - Jianjian Zhang
- Department of Neurosurgery, Zhongnan Hospital, Wuhan University, Wuhan, China
- Brain Research Center, Zhongnan Hospital, Wuhan University, Wuhan, China
- Jianjian Zhang
| | - Xiang Li
- Department of Neurosurgery, Zhongnan Hospital, Wuhan University, Wuhan, China
- Brain Research Center, Zhongnan Hospital, Wuhan University, Wuhan, China
- Xiang Li
| | - Jincao Chen
- Department of Neurosurgery, Zhongnan Hospital, Wuhan University, Wuhan, China
- Brain Research Center, Zhongnan Hospital, Wuhan University, Wuhan, China
- *Correspondence: Jincao Chen
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28
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Li YC, Wang Y, Zou W. Exploration on the Mechanism of Ubiquitin Proteasome System in Cerebral Stroke. Front Aging Neurosci 2022; 14:814463. [PMID: 35462700 PMCID: PMC9022456 DOI: 10.3389/fnagi.2022.814463] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Accepted: 03/14/2022] [Indexed: 12/23/2022] Open
Abstract
Stroke’s secondary damage, such as inflammation, oxidative stress, and mitochondrial dysfunction, are thought to be crucial factors in the disease’s progression. Despite the fact that there are numerous treatments for secondary damage following stroke, such as antiplatelet therapy, anticoagulant therapy, surgery, and so on, the results are disappointing and the side effects are numerous. It is critical to develop novel and effective strategies for improving patient prognosis. The ubiquitin proteasome system (UPS) is the hub for the processing and metabolism of a wide range of functional regulatory proteins in cells. It is critical for the maintenance of cell homeostasis. With the advancement of UPS research in recent years, it has been discovered that UPS is engaged in a variety of physiological and pathological processes in the human body. UPS is expected to play a role in the onset and progression of stroke via multiple targets and pathways. This paper explores the method by which UPS participates in the linked pathogenic process following stroke, in order to give a theoretical foundation for further research into UPS and stroke treatment.
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Affiliation(s)
- Yu-Chao Li
- Heilongjiang University of Chinese Medicine, Harbin, China
| | - Yan Wang
- School of Traditional Chinese Medicine, Ningxia Medical University, Yinchuan, China
| | - Wei Zou
- Heilongjiang University of Chinese Medicine, Harbin, China
- First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, China
- *Correspondence: Wei Zou,
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29
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Nrf2 Deficiency Attenuates Testosterone Efficiency in Ameliorating Mitochondrial Function of the Substantia Nigra in Aged Male Mice. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:3644318. [PMID: 35222795 PMCID: PMC8881137 DOI: 10.1155/2022/3644318] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Revised: 01/18/2022] [Accepted: 01/27/2022] [Indexed: 12/11/2022]
Abstract
Reduced testosterone level is a common feature of aging in men. Aging, as a risk factor for several neurodegenerative disorders, shows declined mitochondrial function and downregulated mitochondrial biogenesis and mitochondrial dynamics. Mitochondrial biogenesis and mitochondrial dynamics are crucial in maintaining proper mitochondrial function. Supplementation with testosterone is conducive to improving mitochondrial function of males during aging. Nuclear factor erythroid 2-related factor 2 (Nrf2), a regulator of redox homeostasis, is involved in the ameliorative effects of testosterone supplementation upon aging. To explore Nrf2 role in the effects of testosterone supplementation on mitochondrial function during aging, we studied the efficiency of testosterone supplementation in improving mitochondrial function of Nrf2 knockout- (KO-) aged male mice by analyzing the changes of mitochondrial biogenesis and mitochondrial dynamics. It was found that wild-type- (WT-) aged male mice showed low mitochondrial function and expression levels of PGC-1α, NRF-1\NRF-2, and TFAM regulating mitochondrial biogenesis, as well as Drp1, Mfn1, and OPA1 controlling mitochondrial dynamics in the substantia nigra (SN). Nrf2 KO aggravated the defects above in SN of aged male mice. Testosterone supplementation to WT-aged male mice significantly ameliorated mitochondrial function and upregulated mitochondrial biogenesis and mitochondrial dynamics, which were not shown in Nrf2 KO-aged male mice due to Nrf2 deficiency. Testosterone deficiency by gonadectomy (GDX) decreased mitochondrial function, downregulated mitochondrial biogenesis, and altered mitochondrial dynamics balance in young male mice. Supplementation with testosterone to Nrf2 KO-GDX mice only ameliorated the alterations above but did not reverse them to sham level. Nrf2 deficiency attenuated testosterone efficiency in ameliorating mitochondrial function in the SN of aged male mice through mitochondrial biogenesis and mitochondrial dynamics to some extent. Activation of Nrf2 might contribute to testosterone-upregulating mitochondrial biogenesis and mitochondrial dynamics in the SN during aging to produce efficient mitochondria for ATP production.
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30
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Yang Y, He Y, Wei X, Wan H, Ding Z, Yang J, Zhou H. Network Pharmacology and Molecular Docking-Based Mechanism Study to Reveal the Protective Effect of Salvianolic Acid C in a Rat Model of Ischemic Stroke. Front Pharmacol 2022; 12:799448. [PMID: 35153756 PMCID: PMC8828947 DOI: 10.3389/fphar.2021.799448] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 12/14/2021] [Indexed: 12/18/2022] Open
Abstract
Salvianolic acid C (SAC) is a major bioactive component of Salvia miltiorrhiza Bunge (Danshen), a Chinese herb for treating ischemic stroke (IS). However, the mechanism by which SAC affects the IS has not yet been evaluated, thus a network pharmacology integrated molecular docking strategy was performed to systematically evaluate its pharmacological mechanisms, which were further validated in rats with cerebral ischemia. A total of 361 potential SAC-related targets were predicted by SwissTargetPrediction and PharmMapper, and a total of 443 IS-related targets were obtained from DisGeNET, DrugBank, OMIM, and Therapeutic Target database (TTD) databases. SAC-related targets were hit by the 60 targets associated with IS. By Gene ontology (GO) functional annotation and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment combined with the protein-protein interaction (PPI) network and cytoHubba plug-ins, nine related signaling pathways (proteoglycans in cancer, pathways in cancer, PI3K-Akt signaling pathway, Focal adhesion, etc.), and 20 hub genes were identified. Consequently, molecular docking indicated that SAC may interact with the nine targets (F2, MMP7, KDR, IGF1, REN, PPARG, PLG, ACE and MMP1). Four of the target proteins (VEGFR2, MMP1, PPARγ and IGF1) were verified using western blot. This study comprehensively analyzed pathways and targets related to the treatment of IS by SAC. The results of western blot also confirmed that the SAC against IS is mainly related to anti-inflammatory and angiogenesis, which provides a reference for us to find and explore the effective anti-IS drugs.
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Affiliation(s)
- Yuting Yang
- Zhejiang Chinese Medical University, Hangzhou, China
| | - Yu He
- Zhejiang Chinese Medical University, Hangzhou, China
| | - Xiaoyu Wei
- Zhejiang Chinese Medical University, Hangzhou, China
| | - Haitong Wan
- Zhejiang Chinese Medical University, Hangzhou, China
| | - Zhishan Ding
- Zhejiang Chinese Medical University, Hangzhou, China
| | - Jiehong Yang
- Zhejiang Chinese Medical University, Hangzhou, China
| | - Huifen Zhou
- Zhejiang Chinese Medical University, Hangzhou, China
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Zhang Y, Wang M, Zhang X, Jiang Z, Zhang Y, Fu X, Li Y, Cao D, Han J, Tong J. Helicid Improves Lipopolysaccharide-Induced Apoptosis of C6 Cells by Regulating SH2D5 DNA Methylation via the CytC/Caspase9/Caspase3 Signaling Pathway. CONTRAST MEDIA & MOLECULAR IMAGING 2022; 2022:9242827. [PMID: 35173561 PMCID: PMC8820944 DOI: 10.1155/2022/9242827] [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: 11/26/2021] [Revised: 12/30/2021] [Accepted: 01/10/2022] [Indexed: 11/25/2022]
Abstract
DNA methylation is reportedly associated with stress responses and depression. Treatment with antidepressants can regulate DNA methylation and, subsequently, gene expression in the hippocampus. Hence, DNA methylation is a potential target for treatment of depression. Screening of high-throughput data of a rat model of chronic unpredictable mild stress revealed relatively low expression of SH2 domain-containing 5 (SH2D5). SH2D5 can be overexpressed by treatment with helicid. Therefore, in order to further explore the role of SH2D5 in depression and whether helicid mediates the DNA methylation of SH2D5 as a potential antidepressant role, SH2D5 was overexpressed in C6 cells as a lipopolysaccharides (LPS)-induced model of depression. The expression levels of Bax, Bcl-2, Bad, and Daxx, and changes to the CytC/caspase9/caspase3 signal pathway were detected by qRT-PCR and Western blot analyses. After treatment with helicid or silencing of SH2D5, the above indices were detected. The results showed that helicid regulated the CytC/caspase9/caspase3 signaling pathway and improved the apoptosis indices of C6 cells through the overexpression of SH2D5. Interestingly, silencing of SH2D5 reversed the effects of helicid on the above indices. Then, in order to study the underlying mechanism, the cells were administered to helicid or 5-aza-2'-deoxycytidine (5-AzaD) and expression of SH2D5 was detected by qRT-PCR and Western blot analyses, while to assess the DNA methylation level of SH2D5 using bisulfite sequencing/PCR. The results showed that SH2D5 was hypermethylated with low expression in LPS-induced C6 cells, which was reversed by helicid and 5-AzaD. These results suggest that helicid may affect the CytC/caspase9/caspase3 apoptosis signaling pathway and improve the apoptosis indices by mediating DNA methylation of SH2D5.
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Affiliation(s)
- Yuan Zhang
- The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu 241001, Anhui, China
- Wannan Medical College, Wuhu 241002, Anhui, China
| | - Mei Wang
- The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu 241001, Anhui, China
- Wannan Medical College, Wuhu 241002, Anhui, China
| | - Xiaotong Zhang
- The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu 241001, Anhui, China
- Wannan Medical College, Wuhu 241002, Anhui, China
| | - Zhenyi Jiang
- The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu 241001, Anhui, China
- Wannan Medical College, Wuhu 241002, Anhui, China
| | | | - Xiangjun Fu
- The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu 241001, Anhui, China
- Wannan Medical College, Wuhu 241002, Anhui, China
| | - Yanna Li
- The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu 241001, Anhui, China
- Wannan Medical College, Wuhu 241002, Anhui, China
| | - Danping Cao
- The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu 241001, Anhui, China
- Wannan Medical College, Wuhu 241002, Anhui, China
| | - Jun Han
- Wannan Medical College, Wuhu 241002, Anhui, China
- Anhui Provincial Engineering Laboratory for Screening and Re-evaluation of Active Compounds of Herbal Medicines, Southern Anhui, Wuhu 241002, Anhui, China
| | - Jiucui Tong
- The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, Wuhu 241001, Anhui, China
- Anhui Provincial Engineering Laboratory for Screening and Re-evaluation of Active Compounds of Herbal Medicines, Southern Anhui, Wuhu 241002, Anhui, China
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Morland C, Nordengen K. N-Acetyl-Aspartyl-Glutamate in Brain Health and Disease. Int J Mol Sci 2022; 23:ijms23031268. [PMID: 35163193 PMCID: PMC8836185 DOI: 10.3390/ijms23031268] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 01/20/2022] [Accepted: 01/21/2022] [Indexed: 02/04/2023] Open
Abstract
N-acetyl-aspartyl-glutamate (NAAG) is the most abundant dipeptide in the brain, where it acts as a neuromodulator of glutamatergic synapses by activating presynaptic metabotropic glutamate receptor 3 (mGluR3). Recent data suggest that NAAG is selectively localized to postsynaptic dendrites in glutamatergic synapses and that it works as a retrograde neurotransmitter. NAAG is released in response to glutamate and provides the postsynaptic neuron with a feedback mechanisms to inhibit excessive glutamate signaling. A key regulator of synaptically available NAAG is rapid degradation by the extracellular enzyme glutamate carboxypeptidase II (GCPII). Increasing endogenous NAAG—for instance by inhibiting GCPII—is a promising treatment option for many brain disorders where glutamatergic excitotoxicity plays a role. The main effect of NAAG occurs through increased mGluR3 activation and thereby reduced glutamate release. In the present review, we summarize the transmitter role of NAAG and discuss the involvement of NAAG in normal brain physiology. We further present the suggested roles of NAAG in various neurological and psychiatric diseases and discuss the therapeutic potential of strategies aiming to enhance NAAG levels.
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Affiliation(s)
- Cecilie Morland
- Section for Pharmacology and Pharmaceutical Biosciences, Department of Pharmacy, The Faculty of Mathematics and Natural Sciences, University of Oslo, 1068 Oslo, Norway
- Correspondence: (C.M.); (K.N.); Tel.: +47-22844937; (C.M.); +47-23073580 (K.N.)
| | - Kaja Nordengen
- Department of Neurology, Oslo University Hospital, 0424 Oslo, Norway
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, 0318 Oslo, Norway
- Correspondence: (C.M.); (K.N.); Tel.: +47-22844937; (C.M.); +47-23073580 (K.N.)
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Ding PF, Zhang HS, Wang J, Gao YY, Mao JN, Hang CH, Li W. Insulin resistance in ischemic stroke: Mechanisms and therapeutic approaches. Front Endocrinol (Lausanne) 2022; 13:1092431. [PMID: 36589857 PMCID: PMC9798125 DOI: 10.3389/fendo.2022.1092431] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 11/30/2022] [Indexed: 12/23/2022] Open
Abstract
The pathological condition of insulin resistance prevents the neuroprotective effects of insulin. Numerous studies have demonstrated that insulin resistance, as an independent risk factor for ischemic stroke, accelerates the formation of thrombosis and promotes the development of atherosclerosis, both of which are major mechanisms of ischemic stroke. Additionally, insulin resistance negatively affects the prognosis of patients with ischemic stroke regardless of whether the patient has diabetes, but the mechanisms are not well studied. We explored the association between insulin resistance and the primary mechanisms of brain injury in ischemic stroke (inflammation, oxidative stress, and neuronal damage), looking for potential causes of poor prognosis in patients with ischemic stroke due to insulin resistance. Furthermore, we summarize insulin resistance therapeutic approaches to propose new therapeutic directions for clinically improving prognosis in patients with ischemic stroke.
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Affiliation(s)
- Peng-Fei Ding
- Department of Neurosurgery, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, China
| | - Hua-Sheng Zhang
- Department of Neurosurgery, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, China
- Department of Neurosurgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Jie Wang
- Department of Neurosurgery, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, China
| | - Yong-Yue Gao
- Department of Neurosurgery, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, China
- Department of Neurosurgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Jian-Nan Mao
- Department of Neurosurgery, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, China
- Department of Neurosurgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Chun-Hua Hang
- Department of Neurosurgery, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, China
- Department of Neurosurgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Wei Li
- Department of Neurosurgery, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, China
- Department of Neurosurgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
- *Correspondence: Chunhua Hang, ; Wei Li,
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