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Wang Y, Yuan T, Lyu T, Zhang L, Wang M, He Z, Wang Y, Li Z. Mechanism of inflammatory response and therapeutic effects of stem cells in ischemic stroke: current evidence and future perspectives. Neural Regen Res 2025; 20:67-81. [PMID: 38767477 DOI: 10.4103/1673-5374.393104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 11/21/2023] [Indexed: 05/22/2024] Open
Abstract
Ischemic stroke is a leading cause of death and disability worldwide, with an increasing trend and tendency for onset at a younger age. China, in particular, bears a high burden of stroke cases. In recent years, the inflammatory response after stroke has become a research hotspot: understanding the role of inflammatory response in tissue damage and repair following ischemic stroke is an important direction for its treatment. This review summarizes several major cells involved in the inflammatory response following ischemic stroke, including microglia, neutrophils, monocytes, lymphocytes, and astrocytes. Additionally, we have also highlighted the recent progress in various treatments for ischemic stroke, particularly in the field of stem cell therapy. Overall, understanding the complex interactions between inflammation and ischemic stroke can provide valuable insights for developing treatment strategies and improving patient outcomes. Stem cell therapy may potentially become an important component of ischemic stroke treatment.
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Affiliation(s)
- Yubo Wang
- Vascular Neurology, Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Tingli Yuan
- Shanghai Engineering Research Center of Stem Cells Translational Medicine, Shanghai, China
| | - Tianjie Lyu
- Vascular Neurology, Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Ling Zhang
- Vascular Neurology, Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Meng Wang
- China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- National Center for Healthcare Quality Management in Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Zhiying He
- Shanghai Engineering Research Center of Stem Cells Translational Medicine, Shanghai, China
- Institute for Regenerative Medicine, Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Yongjun Wang
- Vascular Neurology, Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- National Center for Healthcare Quality Management in Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- Chinese Institute for Brain Research, Beijing, China
- Research Unit of Artificial Intelligence in Cerebrovascular Disease, Chinese Academy of Medical Sciences, Beijing, China
- Beijing Engineering Research Center of Digital Healthcare for Neurological Diseases, Beijing, China
| | - Zixiao Li
- Vascular Neurology, Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- National Center for Healthcare Quality Management in Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- Chinese Institute for Brain Research, Beijing, China
- Research Unit of Artificial Intelligence in Cerebrovascular Disease, Chinese Academy of Medical Sciences, Beijing, China
- Beijing Engineering Research Center of Digital Healthcare for Neurological Diseases, Beijing, China
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Li Y, He L, Song H, Bao X, Niu S, Bai J, Ma J, Yuan R, Liu S, Guo J. Cordyceps: Alleviating ischemic cardiovascular and cerebrovascular injury - A comprehensive review. JOURNAL OF ETHNOPHARMACOLOGY 2024; 332:118321. [PMID: 38735418 DOI: 10.1016/j.jep.2024.118321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 04/28/2024] [Accepted: 05/07/2024] [Indexed: 05/14/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Cordyceps has a long medicinal history as a nourishing herb in traditional Chinese medicine (TCM). Ischemic cardio-cerebrovascular diseases (CCVDs), including cerebral ischemic/reperfusion injury (CI/RI) and myocardial ischemic/reperfusion injury (MI/RI), are major contributors to mortality and disability in humans. Numerous studies have indicated that Cordyceps or its artificial substitutes have significant bioactivity on ischemic CCVDs, however, there is a lack of relevant reviews. AIM OF THE STUDY This review was conducted to investigate the chemical elements, pharmacological effects, clinical application and drug safety of Cordycepson ischemic CCVDs. MATERIALS AND METHODS A comprehensive search was conducted on the Web of Science, PubMed, Chinese National Knowledge Infrastructure (CNKI), and Wanfang databases using the keywords "Cordyceps", "Cerebral ischemic/reperfusion injury", and "Myocardial ischemic/reperfusion injury" or their synonyms. The retrieved literature was then categorized and summarized. RESULTS The study findings indicated that Cordyceps and its bioactive components, including adenosine, cordycepin, mannitol, polysaccharide, and protein, have the potential to protect against CI/RI and MI/RI by improving blood perfusion, mitigating damage from reactive oxygen species, suppressing inflammation, preventing cellular apoptosis, and promoting tissue regeneration. Individually, Cordyceps could reduce neuronal excitatory toxicity and blood-brain barrier damage caused by cerebral ischemia. It can also significantly improve cardiac energy metabolism disorders and inhibit calcium overload caused by myocardial ischemia. Additionally, Cordyceps exerts a significant preventive or curative influence on the factors responsible for heart/brain ischemia, including hypertension, thrombosis, atherosclerosis, and arrhythmia. CONCLUSION This study demonstrates Cordyceps' prospective efficacy and safety in the prevention or treatment of CI/RI and MI/RI, providing novel insights for managing ischemic CCVDs.
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Affiliation(s)
- Yong Li
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China.
| | - Liying He
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China.
| | - Haoran Song
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China.
| | - Xiuwen Bao
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China.
| | - Shuqi Niu
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China.
| | - Jing Bai
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China.
| | - Junhao Ma
- College of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China.
| | - Run Yuan
- College of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China.
| | - Sijing Liu
- College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China.
| | - Jinlin Guo
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China; College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China.
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Brooks B, D'Egidio F, Borlongan MC, Borlongan MC, Lee JY. Stem cell grafts enhance endogenous extracellular vesicle expression in the stroke brain. Brain Res Bull 2024; 214:110999. [PMID: 38851436 DOI: 10.1016/j.brainresbull.2024.110999] [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: 02/19/2024] [Revised: 06/04/2024] [Accepted: 06/05/2024] [Indexed: 06/10/2024]
Abstract
Endogenous brain repair occurs following an ischemic stroke but is transient, thus unable to fully mount a neuroprotective response against the evolving secondary cell death. Finding a treatment strategy that may render robust and long-lasting therapeutic effects stands as a clinically relevant therapy for stroke. Extracellular vesicles appear to be upregulated after stroke, which may represent a candidate target for neuroprotection. In this study, we probed whether transplanted stem cells could enhance the expression of extracellular vesicles to afford stable tissue remodeling in the ischemic stroke brain. Aged rats were initially exposed to the established ischemic stroke model of middle cerebral artery occlusion then received intravenous delivery of either bone marrow-derived mesenchymal stem cell transplantation or vehicle. A year later, the animals were assayed for brain damage, inflammation, and extracellular vesicle expression. Our findings revealed that while core infarction was not reduced, the stroke animals transplanted with stem cells displayed a significant reduction in peri-infarct cell loss that coincided with downregulated Iba1-labeled inflammatory cells and upregulated CD63-positive extracellular vesicles that appeared to be co-localized with GFAP-positive astrocytes. Interestingly, grafted stem cells were not detected at one year post-transplantation period, suggesting that the extracellular vesicles likely originated within the host brain. That long-lasting functional benefits persisted in the absence of surviving transplanted stem cells, but with upregulation of endogenous extracellular vesicles, advances the concept that transplantation of stem cells acutely after stroke propels host extracellular vesicles to the ischemic brain, altogether promoting chronic brain remodeling.
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Affiliation(s)
- Beverly Brooks
- Department of Neurosurgery and Brain Repair, Center of Excellence for Aging and Brain Repair, University of South Florida Morsani College of Medicine, 12901 Bruce B. Downs Blvd., Tampa, FL 33612, United States
| | - Francesco D'Egidio
- Department of Neurosurgery and Brain Repair, Center of Excellence for Aging and Brain Repair, University of South Florida Morsani College of Medicine, 12901 Bruce B. Downs Blvd., Tampa, FL 33612, United States
| | - Maximillian C Borlongan
- Department of Neurosurgery and Brain Repair, Center of Excellence for Aging and Brain Repair, University of South Florida Morsani College of Medicine, 12901 Bruce B. Downs Blvd., Tampa, FL 33612, United States
| | - Mia C Borlongan
- Department of Neurosurgery and Brain Repair, Center of Excellence for Aging and Brain Repair, University of South Florida Morsani College of Medicine, 12901 Bruce B. Downs Blvd., Tampa, FL 33612, United States
| | - Jea-Young Lee
- Department of Neurosurgery and Brain Repair, Center of Excellence for Aging and Brain Repair, University of South Florida Morsani College of Medicine, 12901 Bruce B. Downs Blvd., Tampa, FL 33612, United States.
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Guo D, Hu L, Xie P, Sun P, Yu W. Seipin is involved in oxygen-glucose deprivation/reoxygenation induced neuroinflammation by regulating the TLR3/TRAF3/NF-κB pathway. Int Immunopharmacol 2024; 134:112182. [PMID: 38703568 DOI: 10.1016/j.intimp.2024.112182] [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: 02/25/2024] [Revised: 04/25/2024] [Accepted: 04/27/2024] [Indexed: 05/06/2024]
Abstract
Seipin plays a crucial role in lipid metabolism and is involved in neurological disorders. However, the function and mechanism of action of seipin in acute ischemic stroke have not yet been elucidated. Here, we aimed to investigate the effect of seipin on neuroinflammation induced by oxygen-glucose deprivation/reoxygenation (OGD/R) and further explore the molecular mechanism by functional experiments. Our results revealed a significant decrease in seipin mRNA levels, accompanied by enhanced expression of TNF-α in patients with AIS, and a significant negative correlation between seipin and TNF-α was observed. Additionally, there was a negative correlation between seipin levels and the National Institutes of Health Stroke Scale (NIHSS) score. Furthermore, seipin levels were also decreased in middle cerebral artery occlusion/reperfusion (MCAO/R) mice and OGD/R-treated BV2 cells. RNA sequencing analysis showed that seipin knockdown altered the Toll-like receptor 3 (TLR3) signaling pathway. It was further confirmed in vitro that seipin knockdown caused significantly increased secretion of inflammatory factors including TNF-α, interleukin (IL)-1β, and interferon (IFN)-β. Meanwhile, seipin knockdown activated the Tlr3 signal pathway while this effect could be reversed by Tlr3 inhibitor in OGD/R treated BV2 cells. Furthermore, neuroinflammation induced by OGD/R was significantly reduced by seipin overexpression. Overall, our study demonstrate that seipin deficiency aggravates neuroinflammation by activating the TLR3/TRAF3/NF-κB signaling pathway after OGD/R stimuli, and suggest that seipin may be a potential therapeutic target for AIS.
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Affiliation(s)
- Dongfen Guo
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education, School of Basic Medical Science, Guizhou Medical University, 09 Beijing Road, Guiyang 550004, Guizhou, China
| | - Lele Hu
- Department of Neurology, The Second People's Hospital of Guiyang, Guiyang 550023, Guizhou, China
| | - Peng Xie
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education, School of Basic Medical Science, Guizhou Medical University, 09 Beijing Road, Guiyang 550004, Guizhou, China
| | - Ping Sun
- Department of Neurology, The Second People's Hospital of Guiyang, Guiyang 550023, Guizhou, China.
| | - Wenfeng Yu
- Key Laboratory of Endemic and Ethnic Diseases, Ministry of Education, School of Basic Medical Science, Guizhou Medical University, 09 Beijing Road, Guiyang 550004, Guizhou, China; Key Laboratory of Human Brain Bank for Functions and Diseases of Department of Education of Guizhou Province, Guizhou Medical University, Guiyang 550025, Guizhou, China.
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Zhao Q, Chen L, Zhang X, Yang H, Li Y, Li P. β-elemene promotes microglial M2-like polarization against ischemic stroke via AKT/mTOR signaling axis-mediated autophagy. Chin Med 2024; 19:86. [PMID: 38879549 PMCID: PMC11179363 DOI: 10.1186/s13020-024-00946-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Accepted: 05/14/2024] [Indexed: 06/19/2024] Open
Abstract
BACKGROUND Resident microglia- and peripheric macrophage-mediated neuroinflammation plays a predominant role in the occurrence and development of ischemic stroke. Microglia undergo polarization to M1/M2-like phenotype under stress stimulation, which mediates intracellular inflammatory response. β-elemene is a natural sesquiterpene and possesses potent anti-inflammatory activity. This study aimed to investigate the anti-inflammatory efficacy and mechanism of β-elemene in ischemic stroke from the perspective of balancing microglia M1/M2-like polarization. METHODS The middle cerebral artery occlusion (MCAO) model and photothrombotic stroke model were established to explore the regulation effect of β-elemene on the cerebral ischemic injury. The LPS and IFN-γ stimulated BV-2 cells were used to demonstrate the anti-inflammatory effects and potential mechanism of β-elemene regulating M1/M2-like polarization in vitro. RESULTS In C57BL/6 J mice subjected to MCAO model and photothrombotic stroke model, β-elemene attenuated neurological deficit, reduced the infarction volume and neuroinflammation, thus improving ischemic stroke injury. β-elemene promoted the phenotype transformation of microglia from M1-like to M2-like, which prevented neurons from oxygen and glucose deprivation/reoxygenation (OGD/R) injury by inhibiting inflammatory factor release, thereby reducing neuronal apoptosis. Mechanically, β-elemene prevented the activation of TLR4/NF-κΒ and MAPK signaling pathway and increased AKT/mTOR mediated-autophagy, thereby promoting M2-like polarization of microglia. CONCLUSIONS These results indicated that β-elemene improved cerebral ischemic injury and promoted the transformation of microglia phenotype from M1-like to M2-like, at least in part, through AKT/mTOR-mediated autophagy. This study demonstrated that β-elemene might serve as a promising drug for alleviating ischemic stroke injury.
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Affiliation(s)
- Qiong Zhao
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, #639 Longmian Dadao, Nanjing, 211198, China
| | - Lu Chen
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, #639 Longmian Dadao, Nanjing, 211198, China
| | - Xin Zhang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, #639 Longmian Dadao, Nanjing, 211198, China
| | - Hua Yang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, #639 Longmian Dadao, Nanjing, 211198, China
| | - Yi Li
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, #639 Longmian Dadao, Nanjing, 211198, China.
| | - Ping Li
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, #639 Longmian Dadao, Nanjing, 211198, China.
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Ma XY, Qi CY, Xu XY, Li H, Liu CD, Wen XR, Fu YY, Liu Y, Liang J, Huang CY, Li DD, Li Y, Shen QC, Qi QZ, Zhu G, Wang N, Zhou XY, Song YJ. PRDX1 Interfering Peptide Disrupts Amino Acids 70-90 of PRDX1 to Inhibit the TLR4/NF-κB Signaling Pathway and Attenuate Neuroinflammation and Ischemic Brain Injury. Mol Neurobiol 2024:10.1007/s12035-024-04247-9. [PMID: 38780721 DOI: 10.1007/s12035-024-04247-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Accepted: 05/14/2024] [Indexed: 05/25/2024]
Abstract
Ischemic stroke ranks among the leading causes of death and disability in humans and is accompanied by motor and cognitive impairment. However, the precise mechanisms underlying injury after stroke and effective treatment strategies require further investigation. Peroxiredoxin-1 (PRDX1) triggers an extensive inflammatory cascade that plays a pivotal role in the pathology of ischemic stroke, resulting in severe brain damage from activated microglia. In the present study, we used molecular dynamics simulation and nuclear magnetic resonance to detect the interaction between PRDX1 and a specific interfering peptide. We used behavioral, morphological, and molecular experimental methods to demonstrate the effect of PRDX1-peptide on cerebral ischemia-reperfusion (I/R) in mice and to investigate the related mechanism. We found that PRDX1-peptide bound specifically to PRDX1 and improved motor and cognitive functions in I/R mice. In addition, pretreatment with PRDX1-peptide reduced the infarct area and decreased the number of apoptotic cells in the penumbra. Furthermore, PRDX1-peptide inhibited microglial activation and downregulated proinflammatory cytokines including IL-1β, IL-6, and TNF-α through inhibition of the TLR4/NF-κB signaling pathway, thereby attenuating ischemic brain injury. Our findings clarify the precise mechanism underlying PRDX1-induced inflammation after ischemic stroke and suggest that the PRDX1-peptide can significantly alleviate the postischemic inflammatory response by interfering with PRDX1 amino acids 70-90 and thereby inhibiting the TLR4/NF-κB signaling pathway. Our study provides a theoretical basis for a new therapeutic strategy to treat ischemic stroke.
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Affiliation(s)
- Xiang-Yu Ma
- Xuzhou Engineering Research Center of Medical Genetics and Transformation, Key Laboratory of Genetic Foundation and Clinical Application, Department of Genetics, Xuzhou Medical University, Xuzhou, 221004, China
| | - Cheng-Yu Qi
- Xuzhou Engineering Research Center of Medical Genetics and Transformation, Key Laboratory of Genetic Foundation and Clinical Application, Department of Genetics, Xuzhou Medical University, Xuzhou, 221004, China
| | - Xing-Yi Xu
- Xuzhou Engineering Research Center of Medical Genetics and Transformation, Key Laboratory of Genetic Foundation and Clinical Application, Department of Genetics, Xuzhou Medical University, Xuzhou, 221004, China
| | - Hui Li
- Xuzhou Engineering Research Center of Medical Genetics and Transformation, Key Laboratory of Genetic Foundation and Clinical Application, Department of Genetics, Xuzhou Medical University, Xuzhou, 221004, China
| | - Chang-Dong Liu
- State Key Laboratory of Molecular Neuroscience, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, 00000, Hong Kong SAR, China
| | - Xiang-Ru Wen
- Department of Chemistry, School of Pharmacy, Xuzhou Medical University, Xuzhou, 221004, China
| | - Yan-Yan Fu
- Department of Cell Biology and Neurobiology, Xuzhou Medical University, Xuzhou, 221004, China
| | - Yan Liu
- Xuzhou Engineering Research Center of Medical Genetics and Transformation, Key Laboratory of Genetic Foundation and Clinical Application, Department of Genetics, Xuzhou Medical University, Xuzhou, 221004, China
| | - Jia Liang
- Xuzhou Engineering Research Center of Medical Genetics and Transformation, Key Laboratory of Genetic Foundation and Clinical Application, Department of Genetics, Xuzhou Medical University, Xuzhou, 221004, China
| | - Cheng-Yu Huang
- Xuzhou Engineering Research Center of Medical Genetics and Transformation, Key Laboratory of Genetic Foundation and Clinical Application, Department of Genetics, Xuzhou Medical University, Xuzhou, 221004, China
| | - Dan-Dan Li
- Xuzhou Engineering Research Center of Medical Genetics and Transformation, Key Laboratory of Genetic Foundation and Clinical Application, Department of Genetics, Xuzhou Medical University, Xuzhou, 221004, China
| | - Yan Li
- Xuzhou Engineering Research Center of Medical Genetics and Transformation, Key Laboratory of Genetic Foundation and Clinical Application, Department of Genetics, Xuzhou Medical University, Xuzhou, 221004, China
| | - Qian-Cheng Shen
- Xuzhou Engineering Research Center of Medical Genetics and Transformation, Key Laboratory of Genetic Foundation and Clinical Application, Department of Genetics, Xuzhou Medical University, Xuzhou, 221004, China
| | - Qian-Zhi Qi
- Xuzhou Engineering Research Center of Medical Genetics and Transformation, Key Laboratory of Genetic Foundation and Clinical Application, Department of Genetics, Xuzhou Medical University, Xuzhou, 221004, China
| | - Guang Zhu
- State Key Laboratory of Molecular Neuroscience, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, 00000, Hong Kong SAR, China
| | - Nan Wang
- Research Center for Biochemistry and Molecular Biology, Jiangsu Key Laboratory of Brain Disease Bioinformation, School of Basic Medical Sciences, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China.
| | - Xiao-Yan Zhou
- Xuzhou Engineering Research Center of Medical Genetics and Transformation, Key Laboratory of Genetic Foundation and Clinical Application, Department of Genetics, Xuzhou Medical University, Xuzhou, 221004, China.
| | - Yuan-Jian Song
- Xuzhou Engineering Research Center of Medical Genetics and Transformation, Key Laboratory of Genetic Foundation and Clinical Application, Department of Genetics, Xuzhou Medical University, Xuzhou, 221004, China.
- Research Center for Biochemistry and Molecular Biology, Jiangsu Key Laboratory of Brain Disease Bioinformation, School of Basic Medical Sciences, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China.
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Hong L, Zhuo T, Jing S. Silencing of METTL3 inhibits m6A methylation of NEK7 to suppress pyrolysis in an HT-22 cell-based model of intracerebral hemorrhage. Brain Res 2024; 1831:148828. [PMID: 38408556 DOI: 10.1016/j.brainres.2024.148828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 02/18/2024] [Accepted: 02/23/2024] [Indexed: 02/28/2024]
Abstract
Intracerebral hemorrhage (ICH) induces severe neurological damage, and its progression is driven by METTL3. This study aimed to investigate the role of METTL3 in ICH via in vitro experiments. For this purpose, HT-22 cells were treated with hemin to mimic ICH in vitro, followed by evaluating cell pyroptosis using flow cytometry, lactic dehydrogenase release analysis, enzyme-linked immunosorbent assay, and western blotting. Moreover, N6-methyl adenosine (m6A) methylation of NEK7 was assessed using methylated RNA immunoprecipitation, RNA immunoprecipitation, dual-luciferase reporter assay, and quantitative real-time polymerase chain reaction. Results indicated that knockdown of METTL3 inhibited hemin-induced pyroptosis and suppressed m6A methylation of NEK7 due to METTL3 downregulation, reducing NEK7 mRNA stability. The effects on METTL3-induced cell pyroptosis were abrogated by overexpressing NEK7, while IGF2BP2 increased NEK7 expression. Similarly, IGF2BP2 silence downregulated NEK7 expression mediated by METTL3. In conclusion, silencing of METTL3 inhibited hemin-induced HT-22 cell pyroptosis by suppressing m6A methylation of NEK7, which was recognized by IGF2BP2. These findings are envisaged to identify a novel therapeutic strategy for ICH.
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Affiliation(s)
- Lei Hong
- Department of Neurosurgery, Ningbo Ninth Hospital, Ningbo, Zhejiang Province 315000, China.
| | - Ting Zhuo
- Department of Neurosurgery, Ningbo Ninth Hospital, Ningbo, Zhejiang Province 315000, China
| | - Shuguang Jing
- Department of Neurosurgery, Ningbo Ninth Hospital, Ningbo, Zhejiang Province 315000, China
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Farzaneh M, Anbiyaee O, Azizidoost S, Nasrolahi A, Ghaedrahmati F, Kempisty B, Mozdziak P, Khoshnam SE, Najafi S. The Mechanisms of Long Non-coding RNA-XIST in Ischemic Stroke: Insights into Functional Roles and Therapeutic Potential. Mol Neurobiol 2024; 61:2745-2753. [PMID: 37932544 DOI: 10.1007/s12035-023-03740-x] [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: 07/01/2023] [Accepted: 10/18/2023] [Indexed: 11/08/2023]
Abstract
Ischemic stroke, which occurs due to the occlusion of cerebral arteries, is a common type of stroke. Recent research has highlighted the important role of long non-coding RNAs (lncRNAs) in the development of cerebrovascular diseases, specifically ischemic stroke. Understanding the functional roles of lncRNAs in ischemic stroke is crucial, given their potential contribution to the disease pathology. One noteworthy lncRNA is X-inactive specific transcript (XIST), which exhibits downregulation during the early stages of ischemic stroke and subsequent upregulation in later stages. XIST exert its influence on the development of ischemic stroke through interactions with multiple miRNAs and transcription factors. These interactions play a significant role in the pathogenesis of the condition. In this review, we have provided a comprehensive summary of the functional roles of XIST in ischemic stroke. By investigating the involvement of XIST in the disease process, we aim to enhance our understanding of the mechanisms underlying ischemic stroke and potentially identify novel therapeutic targets.
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Affiliation(s)
- Maryam Farzaneh
- Fertility, Infertility and Perinatology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Omid Anbiyaee
- Cardiovascular Research Center, Namazi Hospital, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Shirin Azizidoost
- Atherosclerosis Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Ava Nasrolahi
- Infectious Ophthalmologic Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Farhoodeh Ghaedrahmati
- Department of Immunology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Bartosz Kempisty
- Department of Human Morphology and Embryology, Division of Anatomy, Wroclaw Medical University, Wrocław, Poland
- Institute of Veterinary Medicine, Department of Veterinary Surgery, Nicolaus Copernicus University, Torun, Poland
- North Carolina State University College of Agriculture and Life Sciences, Raleigh, NC, 27695, USA
| | - Paul Mozdziak
- North Carolina State University College of Agriculture and Life Sciences, Raleigh, NC, 27695, USA
| | - Seyed Esmaeil Khoshnam
- Persian Gulf Physiology Research Center, Medical Basic Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
| | - Sajad Najafi
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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9
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Salman M, Stayton AS, Parveen K, Parveen A, Puchowicz MA, Parvez S, Bajwa A, Ishrat T. Intranasal Delivery of Mitochondria Attenuates Brain Injury by AMPK and SIRT1/PGC-1α Pathways in a Murine Model of Photothrombotic Stroke. Mol Neurobiol 2024; 61:2822-2838. [PMID: 37946007 DOI: 10.1007/s12035-023-03739-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 10/18/2023] [Indexed: 11/12/2023]
Abstract
Ischemic stroke is one of the major causes of morbidity and mortality worldwide. Mitochondria play a vital role in the pathological processes of cerebral ischemic injury, but its transplantation and underlying mechanisms remain unclear. In the present study, we examined the effects of mitochondrial therapy on the modulation of AMPK and SIRT1/PGC-1α signaling pathway, oxidative stress, and NLRP3 inflammasome activation after photothrombotic ischemic stroke (pt-MCAO). The adult male mice were subjected to the pt-MCAO in which the proximal-middle cerebral artery was exposed with a 532-nm laser beam for 4 min by retro-orbital injection of a photosensitive dye (Rose Bengal: 15 mg/kg) before the laser light exposure and isolated mitochondria (100 μg protein) were administered intranasally at 30 min, 24 h, and 48 h following post-stroke. After 72 h, mice were tested for neurobehavioral outcomes and euthanized for infarct volume, brain edema, and molecular analysis. First, we found that mitochondria therapy significantly decreased brain infarct volume and brain edema, improved neurological dysfunction, attenuated ischemic stroke-induced oxidative stress, and neuroinflammation. Second, mitochondria treatment inhibited NLRP3 inflammasome activation. Finally, mitochondria therapy accelerated p-AMPKα(Thr172) and PGC-1α expression and resorted SIRT1 protein expression levels in pt-MCAO mice. In conclusion, our results demonstrate that mitochondria therapy exerts neuroprotective effects by inhibiting oxidative damage and inflammation, mainly dependent on the heightening activation of the AMPK and SIRT1/PGC-1α signaling pathway. Thus, intranasal delivery of mitochondria might be considered a new therapeutic strategy for ischemic stroke treatment.
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Affiliation(s)
- Mohd Salman
- Department of Anatomy and Neurobiology, College of Medicine, The University of Tennessee Health Science Center, 875 Monroe Avenue, Wittenborg Bldg, Room-231, Memphis, TN, 38163, USA.
- Department of Anatomy and Neurobiology, College of Medicine, The University of Tennessee Health Science Center, 875 Monroe Avenue, Wittenborg Bldg, Room-228, Memphis, TN, 38163, USA.
| | - Amanda S Stayton
- Transplant Research Institute, College of Medicine, The University of Tennessee Health Science Center, 71 S Manassas St, Room 418H, Memphis, TN, 38103, USA
| | - Kehkashan Parveen
- Department of Pediatrics, The University of Tennessee Health Science Center, Memphis, TN, 38163, USA
| | - Arshi Parveen
- Department of Anatomy and Neurobiology, College of Medicine, The University of Tennessee Health Science Center, 875 Monroe Avenue, Wittenborg Bldg, Room-231, Memphis, TN, 38163, USA
| | - Michelle A Puchowicz
- Department of Pediatrics, The University of Tennessee Health Science Center, Memphis, TN, 38163, USA
| | - Suhel Parvez
- Department of Medical Elementology and Toxicology, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi, 110062, India
| | - Amandeep Bajwa
- Transplant Research Institute, College of Medicine, The University of Tennessee Health Science Center, 71 S Manassas St, Room 418H, Memphis, TN, 38103, USA.
- Department of Genetics, Genomics, and Informatics, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN, USA.
- Department of Microbiology, Immunology, and Biochemistry, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN, USA.
| | - Tauheed Ishrat
- Department of Anatomy and Neurobiology, College of Medicine, The University of Tennessee Health Science Center, 875 Monroe Avenue, Wittenborg Bldg, Room-231, Memphis, TN, 38163, USA.
- Department of Pharmaceutical Sciences, College of Pharmacy, The University of Tennessee Health Science Center, Memphis, TN, USA.
- Neuroscience Institute, The University of Tennessee Health Science Center, Memphis, TN, USA.
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10
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Perrone S, Carloni S, Dell'Orto VG, Filonzi L, Beretta V, Petrolini C, Lembo C, Buonocore G, Esposito S, Nonnis Marzano F. Hypoxic ischemic brain injury: animal models reveal new mechanisms of melatonin-mediated neuroprotection. Rev Neurosci 2024; 35:331-339. [PMID: 38153803 DOI: 10.1515/revneuro-2023-0126] [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: 10/13/2023] [Accepted: 11/24/2023] [Indexed: 12/30/2023]
Abstract
Oxidative stress (OS) and inflammation play a key role in the development of hypoxic-ischemic (H-I) induced brain damage. Following H-I, rapid neuronal death occurs during the acute phase of inflammation, and activation of the oxidant-antioxidant system contributes to the brain damage by activated microglia. So far, in an animal model of perinatal H-I, it was showed that neuroprostanes are present in all brain damaged areas, including the cerebral cortex, hippocampus and striatum. Based on the interplay between inflammation and OS, it was demonstrated in the same model that inflammation reduced brain sirtuin-1 expression and affected the expression of specific miRNAs. Moreover, through proteomic approach, an increased expression of genes and proteins in cerebral cortex synaptosomes has been revealed after induction of neonatal H-I. Administration of melatonin in the experimental treatment of brain damage and neurodegenerative diseases has produced promising therapeutic results. Melatonin protects against OS, contributes to reduce the generation of pro-inflammatory factors and promotes tissue regeneration and repair. Starting from the above cited aspects, this educational review aims to discuss the inflammatory and OS main pathways in H-I brain injury, focusing on the role of melatonin as neuroprotectant and providing current and emerging evidence.
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Affiliation(s)
- Serafina Perrone
- Neonatology Unit, Department of Medicine and Surgery, University of Parma, Pietro Barilla Children's Hospital, Via Gramsci 14, 43126 Parma, Italy
| | - Silvia Carloni
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Via Aurelio Saffi 2, 61029 Urbino, Italy
| | - Valentina Giovanna Dell'Orto
- Neonatology Unit, Department of Medicine and Surgery, University of Parma, Pietro Barilla Children's Hospital, Via Gramsci 14, 43126 Parma, Italy
| | - Laura Filonzi
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze 11/A, 43124 Parma, Italy
| | - Virginia Beretta
- Neonatology Unit, Department of Medicine and Surgery, University of Parma, Pietro Barilla Children's Hospital, Via Gramsci 14, 43126 Parma, Italy
| | - Chiara Petrolini
- Neonatology Unit, Department of Medicine and Surgery, University of Parma, Pietro Barilla Children's Hospital, Via Gramsci 14, 43126 Parma, Italy
| | - Chiara Lembo
- Department of Neonatology, APHP, Necker-Enfants, Malades Hospital, 149 Rue de Sèvres, 75015 Paris, France
| | - Giuseppe Buonocore
- Department of Molecular and Developmental Medicine, University of Siena, Via Banchi di Sotto 55, 53100 Siena, Italy
| | - Susanna Esposito
- Pediatric Clinic, Department of Medicine and Surgery, University of Parma, Pietro Barilla Children's Hospital, Via Gramsci 14, 43126 Parma, Italy
| | - Francesco Nonnis Marzano
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze 11/A, 43124 Parma, Italy
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11
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Zhang XY, Han PP, Zhao YN, Shen XY, Bi X. Crosstalk between autophagy and ferroptosis mediate injury in ischemic stroke by generating reactive oxygen species. Heliyon 2024; 10:e28959. [PMID: 38601542 PMCID: PMC11004216 DOI: 10.1016/j.heliyon.2024.e28959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 03/26/2024] [Accepted: 03/27/2024] [Indexed: 04/12/2024] Open
Abstract
Stroke represents a significant threat to global human health, characterized by high rates of morbidity, disability, and mortality. Predominantly, strokes are ischemic in nature. Ischemic stroke (IS) is influenced by various cell death pathways, notably autophagy and ferroptosis. Recent studies have increasingly highlighted the interplay between autophagy and ferroptosis, a process likely driven by the accumulation of reactive oxygen species (ROS). Post-IS, either the inhibition of autophagy or its excessive activation can escalate ROS levels. Concurrently, the interaction between ROS and lipids during ferroptosis further augments ROS accumulation. Elevated ROS levels can provoke endoplasmic reticulum stress-induced autophagy and, in conjunction with free iron (Fe2+), can trigger ferroptosis. Moreover, ROS contribute to protein and lipid oxidation, endothelial dysfunction, and an inflammatory response, all of which mediate secondary brain injury following IS. This review succinctly explores the mechanisms of ROS-mediated crosstalk between autophagy and ferroptosis and the detrimental impact of increased ROS on IS. It also offers novel perspectives for IS treatment strategies.
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Affiliation(s)
- Xing-Yu Zhang
- Department of Rehabilitation Medicine, Shanghai University of Medicine and Health Sciences Affiliated Zhoupu Hospital, Shanghai, China
- Graduate School of Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Ping-Ping Han
- Department of Rehabilitation Medicine, Shanghai University of Medicine and Health Sciences Affiliated Zhoupu Hospital, Shanghai, China
- Department of Sport Rehabilitation, Shanghai University of Sport, Shanghai, China
| | - Yi-Ning Zhao
- Department of Rehabilitation Medicine, Shanghai University of Medicine and Health Sciences Affiliated Zhoupu Hospital, Shanghai, China
- Department of Sport Rehabilitation, Shanghai University of Sport, Shanghai, China
| | - Xin-Ya Shen
- Department of Rehabilitation Medicine, Shanghai University of Medicine and Health Sciences Affiliated Zhoupu Hospital, Shanghai, China
| | - Xia Bi
- Department of Rehabilitation Medicine, Shanghai University of Medicine and Health Sciences Affiliated Zhoupu Hospital, Shanghai, China
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12
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Pinosanu LR, Boboc IKS, Balseanu TA, Gresita A, Hermann DM, Popa-Wagner A, Catalin B. Beam narrowing test: a motor index of post-stroke motor evaluation in an aged rat model of cerebral ischemia. J Neural Transm (Vienna) 2024:10.1007/s00702-024-02768-0. [PMID: 38598100 DOI: 10.1007/s00702-024-02768-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2024] [Accepted: 03/15/2024] [Indexed: 04/11/2024]
Abstract
Each year, 15 million people worldwide suffer from strokes. Consequently, researchers face increasing pressure to develop reliable behavioural tests for assessing functional recovery after a stroke. Our aim was to establish a new motor performance index that can be used to evaluate post-stroke recovery in both young and aged animals. Furthermore, we validate the proposed procedure and recommend the necessary number of animals for experimental stroke studies. Young (n = 20) and aged (n = 27) Sprague-Dawley rats were randomly assigned to receive either sham or stroke surgery. The newly proposed performance index was calculated for the post-stroke acute, subacute and chronic phases. The advantage of using our test over current tests lies in the fact that the newly proposed motor index test evaluates not only the performance of the unaffected side in comparison to the affected one but also assesses overall performance by taking into account speed and coordination. Moreover, it reduces the number of animals needed to achieve a statistical power of 80%. This aspect is particularly crucial when studying aged rodents. Our approach can be used to monitor and assess the effectiveness of stroke therapies in experimental models using aged animals.
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Affiliation(s)
- Leonard Radu Pinosanu
- Department of Pharmacology, University of Medicine and Pharmacy of Craiova, 200349, Craiova, Romania
- Experimental Research Centre for Normal and Pathological Aging, University of Medicine and Pharmacy of Craiova, 200349, Craiova, Romania
| | - Ianis Kevyn Stefan Boboc
- Chair of Vascular Neurology, Dementia and Ageing, University Hospital Essen, University of Duisburg-Essen, 45147, Essen, Germany
- Department of Pharmacology, University of Medicine and Pharmacy of Craiova, 200349, Craiova, Romania
| | - Tudor Adrian Balseanu
- Experimental Research Centre for Normal and Pathological Aging, University of Medicine and Pharmacy of Craiova, 200349, Craiova, Romania
| | - Andrei Gresita
- Department of Biomedical Sciences, New York Institute of Technology, College of Osteopathic Medicine, Old Westbury, NY, 115680-8000, USA
| | - Dirk M Hermann
- Chair of Vascular Neurology, Dementia and Ageing, University Hospital Essen, University of Duisburg-Essen, 45147, Essen, Germany
- Experimental Research Centre for Normal and Pathological Aging, University of Medicine and Pharmacy of Craiova, 200349, Craiova, Romania
| | - Aurel Popa-Wagner
- Chair of Vascular Neurology, Dementia and Ageing, University Hospital Essen, University of Duisburg-Essen, 45147, Essen, Germany.
- Experimental Research Centre for Normal and Pathological Aging, University of Medicine and Pharmacy of Craiova, 200349, Craiova, Romania.
| | - Bogdan Catalin
- Department of Biomedical Sciences, New York Institute of Technology, College of Osteopathic Medicine, Old Westbury, NY, 115680-8000, USA
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13
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Xu T, Chen T, Fang H, Shen X, Shen X, Tang Z, Zhao J. Human Umbilical Cord Mesenchymal Stem Cells Repair Endothelial Injury and Dysfunction by Regulating NLRP3 to Inhibit Endothelial Cell Pyroptosis in Kawasaki Disease. Inflammation 2024; 47:483-502. [PMID: 37948033 DOI: 10.1007/s10753-023-01921-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 09/26/2023] [Accepted: 10/17/2023] [Indexed: 11/12/2023]
Abstract
Vascular endothelial inflammation and endothelial dysfunction are the main causes of endothelial injury in Kawasaki disease (KD). Human umbilical cord-derived mesenchymal stem cells (Huc-MSCs) have multiple functions in immune regulation. This study examined whether Huc-MSCs inhibited endothelial inflammation and improved endothelial function in KD through constructing cell and in vivo animal KD vasculitis models. The pyroptosis factor NOD-like receptor protein 3 (NLRP3) was involved in the inflammatory process in the acute phase of KD. After tail vein injection of Huc-MSCs, inflammatory cell infiltration and the expression of pyroptosis-related proteins in the LCWE-induced KD mouse vasculitis model were significantly reduced. In vitro, NLRP3-dependent pyroptosis successfully induced human umbilical vein endothelial cell (HUVEC) damage. Huc-MSCs effectively increased the abilities of impaired HUVECs to proliferate, migrate, invade, and form vessel-like tubes, while inhibiting their apoptosis, suggesting that Huc-MSCs can reduce inflammation and improve vascular endothelial function by inhibiting the NLRP3-dependent pyroptosis pathway in KD, providing a possibility and novel target for KD endothelial injury and dysfunction.
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Affiliation(s)
- Ting Xu
- Department of Pediatrics, Affiliated Hospital of Nantong University, Nantong Jiangsu Province, 226001, China
- Research Institute of Comparative Medicine, Nantong University, Nantong Jiangsu Province, 226001, China
| | - Tao Chen
- Department of Pediatrics, Affiliated Hospital of Nantong University, Nantong Jiangsu Province, 226001, China
| | - Hao Fang
- Department of Pediatrics, Affiliated Hospital of Nantong University, Nantong Jiangsu Province, 226001, China
- Research Institute of Comparative Medicine, Nantong University, Nantong Jiangsu Province, 226001, China
| | - Xiwei Shen
- Department of Pediatrics, Affiliated Hospital of Nantong University, Nantong Jiangsu Province, 226001, China
- Research Institute of Comparative Medicine, Nantong University, Nantong Jiangsu Province, 226001, China
| | - Xianjuan Shen
- Department of Clinical Laboratory, Affiliated Hospital of Nantong University, Nantong Jiangsu Province, 226001, China
| | - Zhiyuan Tang
- Department of Pharmacy, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu, China.
| | - Jianmei Zhao
- Department of Pediatrics, Affiliated Hospital of Nantong University, Nantong Jiangsu Province, 226001, China.
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14
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Igoe A, Twomey DM, Allen N, Carton S, Brady N, O'Keeffe F. A longitudinal analysis of factors associated with post traumatic growth after acquired brain injury. Neuropsychol Rehabil 2024; 34:430-452. [PMID: 37022203 DOI: 10.1080/09602011.2023.2195190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 03/20/2023] [Indexed: 04/07/2023]
Abstract
ABSTRACTPost-Traumatic Growth (PTG) is a form of positive psychological change that occurs for some individuals following traumatic experiences. High levels of PTG have been reported among survivors of acquired brain injury (ABI). Yet it remains unclear why some survivors of ABI develop PTG and others do not. The present study investigated early and late factors that are associated with long-term PTG in people with moderate to severe ABIs. Participants (n = 32, Mage = 50.59, SD = 12.28) completed self-report outcome measures at two time-points seven years apart (one-year and eight-years post-ABI). Outcome measures assessed emotional distress, coping, quality of life and ongoing symptoms of brain injury, as well as PTG at the later timepoint. Multiple regression analyses indicated that one-year post-ABI, fewer symptoms of depression, more symptoms of anxiety, and use of adaptive coping strategies accounted for a significant amount of variance in later PTG. At eight years post-ABI, fewer symptoms of depression, fewer ongoing symptoms of brain injury, better psychological quality of life and use of adaptive coping strategies explained a substantial amount of variance in PTG. For individuals with ABIs, PTG may be promoted by implementing long-term neuropsychological support which aims to facilitate use of adaptive coping strategies, supports psychological wellbeing and allows individuals to find meaning post-ABI.
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Affiliation(s)
- Anna Igoe
- University College Dublin, Dublin, Ireland
| | | | | | - Simone Carton
- National Rehabilitation Hospital, Dun Laoghaire, Ireland
| | | | - Fiadhnait O'Keeffe
- University College Dublin, Dublin, Ireland
- Trinity College Dublin, Dublin, Ireland
- National Rehabilitation Hospital, Dun Laoghaire, Ireland
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15
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Boseley RE, Sylvain NJ, Peeling L, Kelly ME, Pushie MJ. A review of concepts and methods for FTIR imaging of biomarker changes in the post-stroke brain. BIOCHIMICA ET BIOPHYSICA ACTA. BIOMEMBRANES 2024; 1866:184287. [PMID: 38266967 DOI: 10.1016/j.bbamem.2024.184287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Revised: 01/11/2024] [Accepted: 01/12/2024] [Indexed: 01/26/2024]
Abstract
Stroke represents a core area of study in neurosciences and public health due to its global contribution toward mortality and disability. The intricate pathophysiology of stroke, including ischemic and hemorrhagic events, involves the interruption in oxygen and nutrient delivery to the brain. Disruption of these crucial processes in the central nervous system leads to metabolic dysregulation and cell death. Fourier transform infrared (FTIR) spectroscopy can simultaneously measure total protein and lipid content along with a number of key biomarkers within brain tissue that cannot be observed using conventional techniques. FTIR imaging provides the opportunity to visualize this information in tissue which has not been chemically treated prior to analysis, thus retaining the spatial distribution and in situ chemical information. Here we present a review of FTIR imaging methods for investigating the biomarker responses in the post-stroke brain.
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Affiliation(s)
- Rhiannon E Boseley
- Department of Surgery, University of Saskatchewan, Saskatoon, SK S7N 0W8, Canada
| | - Nicole J Sylvain
- Department of Surgery, University of Saskatchewan, Saskatoon, SK S7N 0W8, Canada
| | - Lissa Peeling
- Department of Surgery, University of Saskatchewan, Saskatoon, SK S7N 0W8, Canada
| | - Michael E Kelly
- Department of Surgery, University of Saskatchewan, Saskatoon, SK S7N 0W8, Canada
| | - M Jake Pushie
- Department of Surgery, University of Saskatchewan, Saskatoon, SK S7N 0W8, Canada.
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16
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Li Y, Li M, Feng S, Xu Q, Zhang X, Xiong X, Gu L. Ferroptosis and endoplasmic reticulum stress in ischemic stroke. Neural Regen Res 2024; 19:611-618. [PMID: 37721292 PMCID: PMC10581588 DOI: 10.4103/1673-5374.380870] [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: 12/17/2023] [Revised: 05/30/2023] [Accepted: 06/14/2023] [Indexed: 09/19/2023] Open
Abstract
Ferroptosis is a form of non-apoptotic programmed cell death, and its mechanisms mainly involve the accumulation of lipid peroxides, imbalance in the amino acid antioxidant system, and disordered iron metabolism. The primary organelle responsible for coordinating external challenges and internal cell demands is the endoplasmic reticulum, and the progression of inflammatory diseases can trigger endoplasmic reticulum stress. Evidence has suggested that ferroptosis may share pathways or interact with endoplasmic reticulum stress in many diseases and plays a role in cell survival. Ferroptosis and endoplasmic reticulum stress may occur after ischemic stroke. However, there are few reports on the interactions of ferroptosis and endoplasmic reticulum stress with ischemic stroke. This review summarized the recent research on the relationships between ferroptosis and endoplasmic reticulum stress and ischemic stroke, aiming to provide a reference for developing treatments for ischemic stroke.
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Affiliation(s)
- Yina Li
- Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
| | - Mingyang Li
- Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
| | - Shi Feng
- Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
| | - Qingxue Xu
- Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
| | - Xu Zhang
- Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
| | - Xiaoxing Xiong
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
| | - Lijuan Gu
- Central Laboratory, Renmin Hospital of Wuhan University, Wuhan, Hubei Province, China
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17
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Zhou Q, Ma J, Liu Q, Wu C, Yang Z, Yang T, Chen Q, Yue Y, Shang J. Traditional Chinese Medicine formula, Sanwujiao granule, attenuates ischemic stroke by promoting angiogenesis through early administration. JOURNAL OF ETHNOPHARMACOLOGY 2024; 321:117418. [PMID: 37979814 DOI: 10.1016/j.jep.2023.117418] [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: 08/04/2023] [Revised: 10/24/2023] [Accepted: 11/10/2023] [Indexed: 11/20/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Ischemic stroke (IS) is one of the most lethal diseases with the insufficient pharmacology therapeutic approach. Sanwujiao granule (SW) is widely used for IS in China with little known about its underlying mechanism. AIM OF THE STUDY To investigate the characteristics of therapeutic effects and potential mechanisms of SW against IS. MATERIALS AND METHODS The fingerprint of SW was applied by high-performance liquid chromatography-mass spectrometry (HPLC-MS). Three different drug treatment strategies, including prophylactic administration, early administration and delayed administration, were applied in rats' permanent middle cerebral occlusion (pMCAO) model. The Garcia neurological deficit test, adhesive removal test, rotarod test, TTC and TUNEL staining were performed to evaluate the pathological changes. The transcriptomic analysis was used to predict the potential mechanism of SW. The vascular deficiency model of Tg(kdrl:eGFP) zebrafish larvae and oxygen-glucose deprivation model on bEnd.3 cells were used to verify SW's pharmacological effect. qRT-PCR, immunofluorescent staining and Western Blot were applied to detect the expression of genes and proteins. The network pharmacology approach was applied to discover the potential bioactive compounds in SW that contribute to its pharmacological effect. RESULTS SW early and delayed administration attenuated cerebral infarction, neurological deficit and cell apoptosis. The transcriptomic analysis revealed that SW activated angiogenesis-associated biological processes specifically by early administration. CD31 immunofluorescent staining further confirmed the microvessel intensity in peri-infarct regions was significantly elevated after SW early treatment. Additionally, on the vascular deficiency model of zebrafish larvae, SW showed the angiogenesis effect. Next, the cell migration and tube formation were also observed in the bEnd.3 cells with the oxygen-glucose deprivation induced cell injury. It's worth noting that both mRNA and protein levels of angiogenesis factor, insulin-like growth factor 1, were significantly elevated in the pMCAO rats' brains treated with SW. The network pharmacology approach was applied and chasmanine, karacoline, talatisamine, etc. were probably the main active compounds of SW in IS treatment as they affected the angiogenesis-associated targets. CONCLUSIONS These results demonstrate that SW plays a critical role in anti-IS via promoting angiogenesis through early administration, indicating that SW is a candidate herbal complex for further investigation in treating IS in the clinical.
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Affiliation(s)
- Qinyang Zhou
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, 211198, China
| | - Ji Ma
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, 211198, China
| | - Qiuyan Liu
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, 211198, China
| | - Changyue Wu
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, 211198, China
| | - Ziwei Yang
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, 211198, China
| | - Tingting Yang
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, 211198, China
| | - Qimeng Chen
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, 211198, China
| | - Yunyun Yue
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, 211198, China.
| | - Jing Shang
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, 211198, China; State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, China; Jiangsu Key Laboratory of TCM Evaluation and Translational Research, China Pharmaceutical University, Nanjing, 210009, China; NMPA Key Laboratory for Research and Evaluation of Cosmetics, National Institutes for Food and Drug Control, Beijing, 100050, China.
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18
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Yue C, Lian W, Duan M, Xia D, Cao X, Peng J. The predictive efficacy of programmed cell death in immunotherapy of melanoma: A comprehensive analysis of gene expression data for programmed cell death biomarker and therapeutic target discovery. ENVIRONMENTAL TOXICOLOGY 2024; 39:1858-1873. [PMID: 38140739 DOI: 10.1002/tox.24051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 11/03/2023] [Accepted: 11/09/2023] [Indexed: 12/24/2023]
Abstract
In this study, genes linked to prognosis in skin cutaneous melanoma (SKCM) involved in programmed cell death (PCD) were identified and confirmed and prognostic models based on these genes were constructed. Acquisition and analysis of clinical data and RNA sequencing information from The Cancer Genome Atlas-SKCM (TCGA-SKCM) and Sangerbox databases, gene expression data for 477 tumor samples and 2 normal samples were successfully gathered. The patients were separated into two clusters based on consensus clustering of PCD-related genes, with Cluster A having greater tumor purity, ESTIMATE score, immune score, and matrix score, and Cluster B having a significantly distinct pattern of immune cell infiltration. The use of gene set enrichment analysis and weighted correlation network analysis showed significant associations between certain genes and factors such as tumor mutation burden, age, stage, grade, and tumor subtype. Finally, based on the 12 genes selected by Least Absolute Shrinkage and Selection Operator regression analysis (STAT3, IRF2, SLC7A11, ZEB1, LIPT1, PML, GCH1, GYS1, ABCC1, XBP1, TFAP2C, NOX4), a prognostic model of PGD-related genes was constructed. The effectiveness of the model's prognostic value was confirmed through survival analysis, time-dependent receiver operating characteristic curve, single-factor Cox regression analysis, and nomogram. We also verified the relationship between the GCH1 and MKI67 expression by wet experiment. This model has high prediction accuracy in SKCM patients and can provide a reference for clinical treatment.
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Affiliation(s)
- Chao Yue
- Department of Dermatologic Surgery, Hangzhou Third People's Hospital, Zhejiang, China
| | - Wenqin Lian
- Department of Burns and Plastic & Wound Repair Surgery, Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Mengying Duan
- Department of Dermatologic Surgery, Hangzhou Third People's Hospital, Zhejiang, China
| | - Die Xia
- Department of medicine, China Medical University, Shenyang, China
| | - Xianbin Cao
- Department of Dermatologic Surgery, Hangzhou Third People's Hospital, Zhejiang, China
| | - Jianzhong Peng
- Department of Dermatologic Surgery, Hangzhou Third People's Hospital, Zhejiang, China
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19
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Jiang J, Qi T, Li L, Pan Y, Huang L, Zhu L, Zhang D, Ma X, Qin Y. MRPS9-Mediated Regulation of the PI3K/Akt/mTOR Pathway Inhibits Neuron Apoptosis and Protects Ischemic Stroke. J Mol Neurosci 2024; 74:23. [PMID: 38381220 DOI: 10.1007/s12031-024-02197-4] [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: 12/26/2023] [Accepted: 02/05/2024] [Indexed: 02/22/2024]
Abstract
Neuronal apoptosis is crucial in the pathophysiology of ischemic stroke (IS), albeit its underly24ing mechanism remaining elusive. Investigating the mechanism of neuronal apoptosis in the context of IS holds substantial clinical value for enhancing the prognosis of IS patients. Notably, the MRPS9 gene plays a pivotal role in regulating mitochondrial function and maintaining structural integrity. Utilizing bioinformatic tactics and the extant gene expression data related to IS, we conducted differential analysis and weighted correlation network analysis (WGCNA) to select important modules. Subsequent gene interaction analysis via the STRING website facilitated the identification of the key gene-mitochondrial ribosomal protein S9 (MRPS9)-that affects the progression of IS. Moreover, possible downstream signaling pathways, namely PI3K/Akt/mTOR, were elucidated via Kyoto Encyclopedia of Gene and Genomes (KEGG) and Gene Ontology (GO) pathway analysis. Experimental models were established utilizing oxygen-glucose deprivation/reoxygenation (OGD/R) in vitro and middle cerebral artery occlusion/reperfusion (MCAO/R) in mice. Changes in gene and protein expression, as well as cell proliferation and apoptosis, were monitored through qPCR, WB, CCK8, and flow cytometry. An OGD/R cell model was further employed to investigate the role of MRPS9 in IS post transfusion of MRPS9 overexpression plasmids into cells. Further studies were conducted by transfecting overexpressed cells with PI3K/Akt/mTOR signaling pathway inhibitor LY294002 to unveil the mechanism of MRPS9 in IS. Bioinformatic analysis revealed a significant underexpression of MRPS9 in ischemic stroke patients. Correspondingly, in vitro experiments with HN cells subjected to OGD/R treatment demonstrated a marked reduction in MRPS9 expression, accompanied by a decline in cell viability, and an increase cell apoptosis. Notably, the overexpression of MRPS9 mitigated the OGD/R-induced decrease in cell viability and augmentation of apoptosis. In animal models, MRPS9 expression was significantly lower in the MCAO/R group compared to the sham surgery group. Further, the KEGG pathway analysis associated MRPS9 expression with the PI3K/Akt/mTOR signaling pathway. In cells treated with the specific PI3K/Akt/mTOR inhibitor LY294002, phosphorylation levels of Akt and mTOR were decreased, cell viability decreased, and apoptosis increased compared to the MRPS9 overexpression group. These findings collectively indicate that MRPS9 overexpression inhibits PI3K/Akt/mTOR pathway activation, thereby protecting neurons from apoptosis and impeding IS progression. However, the PI3K/Akt/mTOR inhibitor LY294002 is capable of counteracting the protective effect of MRPS9 overexpression on neuronal apoptosis and IS. Our observations underscore the potential protective role of MRPS9 in modulating neuronal apoptosis and in attenuating the pathophysiological developments associated with IS. This is achieved through the regulation of the PI3K/Akt/mTOR pathway. These insights forge new perspectives and propose novel targets for the strategic diagnosis and treatment of IS.
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Affiliation(s)
- Jina Jiang
- Department of Neurology, the Third Affiliated Hospital of Qiqihar Medical College, Tiefeng District, No. 3, Taishun Street, Qiqihar, China
| | - Tingting Qi
- Department of Neurology, the Third Affiliated Hospital of Qiqihar Medical College, Tiefeng District, No. 3, Taishun Street, Qiqihar, China
| | - Li Li
- Department of Neurology, the Third Affiliated Hospital of Qiqihar Medical College, Tiefeng District, No. 3, Taishun Street, Qiqihar, China
| | - Yunzhi Pan
- Department of Neurology, the Third Affiliated Hospital of Qiqihar Medical College, Tiefeng District, No. 3, Taishun Street, Qiqihar, China
| | - Lijuan Huang
- Department of Neurology, the Third Affiliated Hospital of Qiqihar Medical College, Tiefeng District, No. 3, Taishun Street, Qiqihar, China
| | - Lijuan Zhu
- Department of Neurology, the Third Affiliated Hospital of Qiqihar Medical College, Tiefeng District, No. 3, Taishun Street, Qiqihar, China
| | - Dongyang Zhang
- Department of Neurology, the Third Affiliated Hospital of Qiqihar Medical College, Tiefeng District, No. 3, Taishun Street, Qiqihar, China
| | - Xiaoqing Ma
- Department of Neurology, the Third Affiliated Hospital of Qiqihar Medical College, Tiefeng District, No. 3, Taishun Street, Qiqihar, China
| | - Yinghui Qin
- Department of Neurology, the Third Affiliated Hospital of Qiqihar Medical College, Tiefeng District, No. 3, Taishun Street, Qiqihar, China.
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20
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Teng C, Lv W, Chen Y, Liu L, Yin J, Li S, Min Z, Zhang Q, He W, Ma K, Li X, Cao X, Xin H. Enhanced the treatment of ischemic stroke through intranasal temperature-sensitive hydrogels of edaravone and borneol inclusion complex. Int J Pharm 2024; 651:123748. [PMID: 38154533 DOI: 10.1016/j.ijpharm.2023.123748] [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: 10/24/2023] [Revised: 11/29/2023] [Accepted: 12/24/2023] [Indexed: 12/30/2023]
Abstract
Since ischemic stroke occurs by a combination of multiple mechanisms, therapies that modulate multiple mechanisms are required for its treatment. The combination of edaravone (EDA) and borneol can significantly ameliorate the symptoms of neurological deficits in cerebral ischemia-reperfusion model in rats. In this study, the solubility of borneol and edaravone was improved by hydroxypropyl-β-cyclodextrin and PEG400. Furthermore, a nasal temperature-sensitive hydrogel containing both edaravone and borneol inclusion complex (EDA-BP TSGS) was developed to overcome the obstacles of ischemic stroke treatment including the obstruction of the blood-brain barrier (BBB) and the unavailability and untimely of intravenous injection. The effectiveness of the thermosensitive hydrogel was investigated in transient middle cerebral artery occlusion/reperfusion model rats (MCAO/R). The results showed that EDA-BP TSGS could significantly alleviate the symptoms of neurological deficits and decrease the cerebral infarct area and the degree of brain damage. In summary, nasal EDA-BP TSGS is a secure and effective brain-targeting formulation that may provide a viable option for the clinical prophylaxis and treatment of ischemic stroke.
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Affiliation(s)
- Chuanhui Teng
- Department of Pharmaceutics, School of Pharmacy, Nanjing Medical University, Nanjing 211166, China
| | - Wei Lv
- Department of Pharmacy, The Affiliated Jiangyin Hospital of Xuzhou Medical University, Wuxi 214400, China
| | - Yuqin Chen
- Department of Pharmaceutics, School of Pharmacy, Nanjing Medical University, Nanjing 211166, China
| | - Linfeng Liu
- Department of Pharmaceutics, School of Pharmacy, Nanjing Medical University, Nanjing 211166, China
| | - Jiaqing Yin
- Department of Pharmaceutics, School of Pharmacy, Nanjing Medical University, Nanjing 211166, China
| | - Shengnan Li
- Department of Pharmaceutics, School of Pharmacy, Nanjing Medical University, Nanjing 211166, China
| | - Zhiyi Min
- Department of Pharmaceutics, School of Pharmacy, Nanjing Medical University, Nanjing 211166, China
| | - Qi Zhang
- Department of Pharmaceutics, School of Pharmacy, Nanjing Medical University, Nanjing 211166, China
| | - Weichong He
- Department of Pharmaceutics, School of Pharmacy, Nanjing Medical University, Nanjing 211166, China
| | - Kunfang Ma
- Department of Pharmaceutics, School of Pharmacy, Nanjing Medical University, Nanjing 211166, China
| | - Xinrui Li
- Department of Pharmacy, Sir Run Run Hospital, Nanjing Medical University, Nanjing 211166, China.
| | - Xiang Cao
- Department of Pharmacy, Kangda College of Nanjing Medical University, Lianyungang 222000, China.
| | - Hongliang Xin
- Department of Pharmaceutics, School of Pharmacy, Nanjing Medical University, Nanjing 211166, China.
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21
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Peng C, Ai Q, Zhao F, Li H, Sun Y, Tang K, Yang Y, Chen N, Liu F. Quercetin attenuates cerebral ischemic injury by inhibiting ferroptosis via Nrf2/HO-1 signaling pathway. Eur J Pharmacol 2024; 963:176264. [PMID: 38123006 DOI: 10.1016/j.ejphar.2023.176264] [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: 08/27/2023] [Revised: 12/03/2023] [Accepted: 12/04/2023] [Indexed: 12/23/2023]
Abstract
AIMS Ischemic stroke is a severe cerebrovascular disease in which neuronal death continually occurs through multiple forms, including apoptosis, autophagy, pyroptosis and ferroptosis. Quercetin (QRC), as a natural flavonoid compound, has been reported to have pharmacological effects on ischemic injury accompanied by unclear anti-ferroptotic mechanisms. This study is designed to investigate the therapeutic effects of QRC against ferroptosis in ischemic stroke. MATERIALS AND METHODS In vivo, the model of MCAO rats were used to assess the protective effect of QRC on cerebral ischemic. Additionally, we constructed oxidative stressed and ferroptotic cell models to explore the effects and mechanisms of QRC on ferroptosis. The related proteins were analysed by western blotting, immunohistochemical and immunofluorescence techniques. RESULTS The experiments demonstrated that QRC improves neurological deficits, infarct volume, and pathological features in MCAO rats, also increased the viability of HT-22 cells exposed to H2O2 and erastin. These results, including MDA, SOD, GSH, ROS levels and iron accumulation, indicated that QRC suppresses the generation of lipid peroxides and may involve in the regulatory of ferroptosis. Both in vitro and in vivo, QRC was found to inhibit ferroptosis by up-regulating GPX4 and FTH1, as well as down-regulating ACSL4. Furthermore, we observed that QRC enhances the nuclear translocation of Nrf2 and activates the downstream antioxidative proteins. Importantly, the effect of QRC on ferroptosis can be reversed by the Nrf2 inhibitor ML385. CONCLUSIONS This study provides evidence that QRC has a neuroprotective effect by inhibiting ferroptosis, demonstrating the therapeutic potential for cerebral ischemic stroke.
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Affiliation(s)
- Caiwang Peng
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, 410208, China; Center for Standardization and Functional Engineering of Traditional Chinese Medicine in Hunan Province, Changsha, 410208, China; Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha, 410208, China
| | - Qidi Ai
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, 410208, China; Center for Standardization and Functional Engineering of Traditional Chinese Medicine in Hunan Province, Changsha, 410208, China
| | - Fengyan Zhao
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, 410208, China; Center for Standardization and Functional Engineering of Traditional Chinese Medicine in Hunan Province, Changsha, 410208, China; Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha, 410208, China
| | - Hengli Li
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, 410208, China; Center for Standardization and Functional Engineering of Traditional Chinese Medicine in Hunan Province, Changsha, 410208, China; Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha, 410208, China
| | - Yang Sun
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, 410208, China; Center for Standardization and Functional Engineering of Traditional Chinese Medicine in Hunan Province, Changsha, 410208, China
| | - Keyan Tang
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, 410208, China; Center for Standardization and Functional Engineering of Traditional Chinese Medicine in Hunan Province, Changsha, 410208, China; Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha, 410208, China
| | - Yantao Yang
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, 410208, China; Center for Standardization and Functional Engineering of Traditional Chinese Medicine in Hunan Province, Changsha, 410208, China.
| | - Naihong Chen
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, 410208, China; Center for Standardization and Functional Engineering of Traditional Chinese Medicine in Hunan Province, Changsha, 410208, China; Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China.
| | - Fang Liu
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, 410208, China; Center for Standardization and Functional Engineering of Traditional Chinese Medicine in Hunan Province, Changsha, 410208, China; Key Laboratory of Modern Research of TCM, Education Department of Hunan Province, Changsha, 410208, China.
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22
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Turovsky EA, Baryshev AS, Plotnikov EY. Selenium Nanoparticles in Protecting the Brain from Stroke: Possible Signaling and Metabolic Mechanisms. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:160. [PMID: 38251125 PMCID: PMC10818530 DOI: 10.3390/nano14020160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 01/09/2024] [Accepted: 01/09/2024] [Indexed: 01/23/2024]
Abstract
Strokes rank as the second most common cause of mortality and disability in the human population across the world. Currently, available methods of treating or preventing strokes have significant limitations, primarily the need to use high doses of drugs due to the presence of the blood-brain barrier. In the last decade, increasing attention has been paid to the capabilities of nanotechnology. However, the vast majority of research in this area is focused on the mechanisms of anticancer and antiviral effects of nanoparticles. In our opinion, not enough attention is paid to the neuroprotective mechanisms of nanomaterials. In this review, we attempted to summarize the key molecular mechanisms of brain cell damage during ischemia. We discussed the current literature regarding the use of various nanomaterials for the treatment of strokes. In this review, we examined the features of all known nanomaterials, the possibility of which are currently being studied for the treatment of strokes. In this regard, the positive and negative properties of nanomaterials for the treatment of strokes have been identified. Particular attention in the review was paid to nanoselenium since selenium is a vital microelement and is part of very important and little-studied proteins, e.g., selenoproteins and selenium-containing proteins. An analysis of modern studies of the cytoprotective effects of nanoselenium made it possible to establish the mechanisms of acute and chronic protective effects of selenium nanoparticles. In this review, we aimed to combine all the available information regarding the neuroprotective properties and mechanisms of action of nanoparticles in neurodegenerative processes, especially in cerebral ischemia.
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Affiliation(s)
- Egor A. Turovsky
- Institute of Cell Biophysics of the Russian Academy of Sciences, Federal Research Center “Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences”, 142290 Pushchino, Russia
| | - Alexey S. Baryshev
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilove st., 119991 Moscow, Russia;
| | - Egor Y. Plotnikov
- A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119992 Moscow, Russia
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23
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Motawi TK, Sadik NAH, Shaker OG, Ghaleb MMH, Elbaz EM. Expression, Functional Polymorphism, and Diagnostic Values of MIAT rs2331291 and H19 rs217727 Long Non-Coding RNAs in Cerebral Ischemic Stroke Egyptian Patients. Int J Mol Sci 2024; 25:842. [PMID: 38255915 PMCID: PMC10815378 DOI: 10.3390/ijms25020842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 12/24/2023] [Accepted: 12/30/2023] [Indexed: 01/24/2024] Open
Abstract
Cerebral ischemic stroke (CIS) is a severe cerebral vascular event. This research aimed to evaluate the role of single-nucleotide polymorphisms (SNPs) of the lncRNAs MIAT rs2331291 and H19 rs217727 and epigenetic methylation in the expression patterns of serum lncRNA H19 in CIS Egyptian patients. It included 80 CIS cases and 40 healthy subjects. Serum MIAT expression levels decreased, whereas serum H19 expression levels increased among CIS compared to controls. For MIAT rs2331291, there were significant differences in the genotypic and allelic frequencies between the CIS and healthy subjects at p = 0.02 and p = 0.0001, respectively. Our findings illustrated a significantly increased MIAT T/T genotype frequency in hypertensive CIS compared to non-hypertensive CIS at p = 0.004. However, H19 rs217727 gene frequency C/C was not significantly higher in non-hypertensive CIS than in hypertensive CIS. The methylation of the H19 gene promoter was significantly higher in CIS patients compared to healthy subjects. The level of MIAT was positively correlated with serum H19 in CIS. Receiver operating characteristics (ROC) analysis revealed that serum MIAT and H19 have a high diagnostic potential for distinguishing CIS subjects from healthy ones. In conclusion, the MIAT-rs2331291 polymorphism might serve as a novel potential indicator of CIS.
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Affiliation(s)
- Tarek K. Motawi
- Department of Biochemistry, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
| | | | - Olfat G. Shaker
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Cairo University, Cairo 11562, Egypt
| | | | - Eman M. Elbaz
- Department of Biochemistry, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt
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24
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Ya J, Pellumbaj J, Hashmat A, Bayraktutan U. The Role of Stem Cells as Therapeutics for Ischaemic Stroke. Cells 2024; 13:112. [PMID: 38247804 PMCID: PMC10814781 DOI: 10.3390/cells13020112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 01/01/2024] [Accepted: 01/04/2024] [Indexed: 01/23/2024] Open
Abstract
Stroke remains one of the leading causes of death and disability worldwide. Current reperfusion treatments for ischaemic stroke are limited due to their narrow therapeutic window in rescuing ischaemic penumbra. Stem cell therapy offers a promising alternative. As a regenerative medicine, stem cells offer a wider range of treatment strategies, including long-term intervention for chronic patients, through the reparation and replacement of injured cells via mechanisms of differentiation and proliferation. The purpose of this review is to evaluate the therapeutic role of stem cells for ischaemic stroke. This paper discusses the pathology during acute, subacute, and chronic phases of cerebral ischaemic injury, highlights the mechanisms involved in mesenchymal, endothelial, haematopoietic, and neural stem cell-mediated cerebrovascular regeneration, and evaluates the pre-clinical and clinical data concerning the safety and efficacy of stem cell-based treatments. The treatment of stroke patients with different types of stem cells appears to be safe and efficacious even at relatively higher concentrations irrespective of the route and timing of administration. The priming or pre-conditioning of cells prior to administration appears to help augment their therapeutic impact. However, larger patient cohorts and later-phase trials are required to consolidate these findings.
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Affiliation(s)
| | | | | | - Ulvi Bayraktutan
- Academic Unit of Mental Health and Clinical Neurosciences, Queens Medical Centre, School of Medicine, University of Nottingham, Nottingham NG7 2UH, UK
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25
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Zhu T, Liu H, Gao S, Jiang N, Chen S, Xie W. Effect of salidroside on neuroprotection and psychiatric sequelae during the COVID-19 pandemic: A review. Biomed Pharmacother 2024; 170:115999. [PMID: 38091637 DOI: 10.1016/j.biopha.2023.115999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 11/22/2023] [Accepted: 12/06/2023] [Indexed: 01/10/2024] Open
Abstract
The coronavirus disease 2019 (COVID-19) pandemic has affected the mental health of individuals worldwide, and the risk of psychiatric sequelae and consequent mental disorders has increased among the general population, health care workers and patients with COVID-19. Achieving effective and widespread prevention of pandemic-related psychiatric sequelae to protect the mental health of the global population is a serious challenge. Salidroside, as a natural agent, has substantial pharmacological activity and health effects, exerts obvious neuroprotective effects, and may be effective in preventing and treating psychiatric sequelae and mental disorders resulting from stress stemming from the COVID-19 pandemic. Herein, we systematically summarise, analyse and discuss the therapeutic effects of salidroside in the prevention and treatment of psychiatric sequelae as well as its roles in preventing the progression of mental disorders, and fully clarify the potential of salidroside as a widely applicable agent for preventing mental disorders caused by stress; the mechanisms underlying the potential protective effects of salidroside are involved in the regulation of the oxidative stress, neuroinflammation, neural regeneration and cell apoptosis in the brain, the network homeostasis of neurotransmission, HPA axis and cholinergic system, and the improvement of synaptic plasticity. Notably, this review innovatively proposes that salidroside is a potential agent for treating stress-induced health issues during the COVID-19 pandemic and provides scientific evidence and a theoretical basis for the use of natural products to combat the current mental health crisis.
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Affiliation(s)
- Ting Zhu
- Institute of Neuroregeneration & Neurorehabilitation, Department of Pathophysiology, School of Basic Medicine, Qingdao University, Qingdao 266071, China
| | - Hui Liu
- Guizhou Provincial Key Laboratory of Pharmaceutics & State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang 550004, Guizhou, China; Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang 550004, Guizhou, China
| | - Shiman Gao
- Department of Clinical Pharmacy, Women and Children's Hospital, Qingdao University, Qingdao 266034, China
| | - Ning Jiang
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing 100193, China.
| | - Shuai Chen
- School of Public Health, Wuhan University, Donghu Road No. 115, Wuchang District, Wuhan 430071, China.
| | - Weijie Xie
- Clinical Research Center for Mental Disorders, Shanghai Pudong New Area Mental Health Center, Tongji University School of Medicine, Shanghai 200122, China.
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26
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Goel D, Shangari S, Mittal M, Bhat A. Endogenous defense mechanism-based neuroprotection in large-vessel acute ischemic stroke: A hope for future. Brain Circ 2024; 10:51-59. [PMID: 38655439 PMCID: PMC11034449 DOI: 10.4103/bc.bc_56_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 09/29/2023] [Accepted: 10/03/2023] [Indexed: 04/26/2024] Open
Abstract
BACKGROUND Stroke is a leading cause of morbidity and mortality worldwide and a leading cause of disability. None of the neuroprotective agents have been approved internationally except edaravone in Japanese guidelines in acute ischemic stroke. We here discuss that there are two types of endogenous defense mechanisms (EDMs) after acute stroke for neuromodulation and neuroregeneration, and if both can be activated simultaneously, then we can have better recovery in stroke. AIMS AND OBJECTIVES We aimed to study the effect of combination of neuroprotection therapies acting on the two wings of EDM in acute large-vessel middle cerebral artery (LMCA) ischemic stroke. METHODS Sixty patients of LMCA stroke were enrolled and randomized within 72 h into two groups of 30 patients each. The control group received standard medical care without any neuroprotective agents while the intervention group received standard medical care combined with oral citicoline with vinpocetine for 3 months with initial 1 week intravenous and edaravone and cerebrolysin injection, started within 72 h of onset of stroke. Patients were assessed on the basis of the National Institutes of Health Stroke Scale, Fugl-Meyer Assessment Score, Glasgow Coma Scale, and Mini-Mental Status Examination at admission, discharge, and after 90 days. RESULTS The intervention group showed significant and early improvements in motor as well as cognitive recovery. CONCLUSION Combination therapy for neuroprotection which is acting on two pathways of EDM can be useful in functional recovery after acute ischemic stroke.
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Affiliation(s)
- Deepak Goel
- Department of Neurology, Swami Rama Himalayan University, Dehradun, Uttarakhand, India
| | - Sushant Shangari
- Department of Neurology, Swami Rama Himalayan University, Dehradun, Uttarakhand, India
| | - Manish Mittal
- Department of Neurology, Swami Rama Himalayan University, Dehradun, Uttarakhand, India
| | - Ashwani Bhat
- Department of Neurology, Swami Rama Himalayan University, Dehradun, Uttarakhand, India
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27
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Nie L, He J, Wang J, Wang R, Huang L, Jia L, Kim YT, Bhawal UK, Fan X, Zille M, Jiang C, Chen X, Wang J. Environmental Enrichment for Stroke and Traumatic Brain Injury: Mechanisms and Translational Implications. Compr Physiol 2023; 14:5291-5323. [PMID: 38158368 DOI: 10.1002/cphy.c230007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
Acquired brain injuries, such as ischemic stroke, intracerebral hemorrhage (ICH), and traumatic brain injury (TBI), can cause severe neurologic damage and even death. Unfortunately, currently, there are no effective and safe treatments to reduce the high disability and mortality rates associated with these brain injuries. However, environmental enrichment (EE) is an emerging approach to treating and rehabilitating acquired brain injuries by promoting motor, sensory, and social stimulation. Multiple preclinical studies have shown that EE benefits functional recovery, including improved motor and cognitive function and psychological benefits mediated by complex protective signaling pathways. This article provides an overview of the enriched environment protocols used in animal models of ischemic stroke, ICH, and TBI, as well as relevant clinical studies, with a particular focus on ischemic stroke. Additionally, we explored studies of animals with stroke and TBI exposed to EE alone or in combination with multiple drugs and other rehabilitation modalities. Finally, we discuss the potential clinical applications of EE in future brain rehabilitation therapy and the molecular and cellular changes caused by EE in rodents with stroke or TBI. This article aims to advance preclinical and clinical research on EE rehabilitation therapy for acquired brain injury. © 2024 American Physiological Society. Compr Physiol 14:5291-5323, 2024.
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Affiliation(s)
- Luwei Nie
- Department of Pain Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Department of Human Anatomy, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan Province, China
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jinxin He
- Department of Pain Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Department of Human Anatomy, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan Province, China
- Key Laboratory for Brain Science Research and Transformation in the Tropical Environment of Hainan Province, Hainan Medical University, Haikou, China
| | - Junmin Wang
- Department of Human Anatomy, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan Province, China
| | - Ruike Wang
- Department of Human Anatomy, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan Province, China
| | - Leo Huang
- Department of Psychology, University of Toronto, Toronto, Ontario, Canada
| | - Lin Jia
- Department of Human Anatomy, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan Province, China
| | - Yun Tai Kim
- Division of Functional Food Research, Korea Food Research Institute, Wanju-gun, Jeollabuk-do, Republic of Korea
- Department of Food Biotechnology, Korea University of Science & Technology, Daejeon, Republic of Korea
| | - Ujjal K Bhawal
- Research Institute of Oral Science, Nihon University School of Dentistry at Matsudo, Chiba, Japan
- Center for Global Health Research, Saveetha Medical College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu, India
| | - Xiaochong Fan
- Department of Pain Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Marietta Zille
- Department of Pharmaceutical Sciences, Division of Pharmacology and Toxicology, University of Vienna, Vienna, Austria
| | - Chao Jiang
- Department of Neurology, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China
| | - Xuemei Chen
- Department of Human Anatomy, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan Province, China
| | - Jian Wang
- Department of Pain Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Department of Human Anatomy, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan Province, China
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28
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Zeng Q, Li C, Xu S, He Y. An integrated strategy to evaluate active substances of Astragali Radix-Carthami Flos combination on the treatment of cerebral ischemia reperfusion injury based on TQSM polypharmacokinetics and pharmacodynamics. J Food Drug Anal 2023; 31:711-738. [PMID: 38526820 PMCID: PMC10962676 DOI: 10.38212/2224-6614.3477] [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: 05/23/2023] [Accepted: 09/05/2023] [Indexed: 03/27/2024] Open
Abstract
As a classic herb pair, Astragali Radix-Carthami Flos (AR-CF) has revealed good biological activity in the treatment of cerebral ischemia/reperfusion injury (CI/RI), which remained to be further clarified together with the underlying efficacy related compounds for material basis. In this study, the nine formulations were obtained by L9 (34) orthogonal array design of four active fractions (saponin and flavonoid extracted from AR, safflower yellow and safflower red extracted from CF). The concentrations of eleven components and the levels of four biochemical indicators in rat plasma were continuously detected after intragastric administration of nine formulations, respectively. The collected data were analyzed by sigmoid-Emax function to understand the polypharmacokinetics and pharmacodynamics (PK-PD) behaviors of multi-components. Using the total quantum statistic moment polypharmacokinetics and its similarity method, the importance of four active fractions from AR-CF in relieving CI/RI was discussed and the Q-markers were screened. The results represented that a reliable and robust liquid chromatography tandem mass spectrometry method been successfully established to simultaneously determine the concentrations of eleven components in rat plasma. The AUC and MRT values of components from flavonoid fraction had the greatest contribution to AUCT and MRTT values. The transitivity in vivo of calycosin-7-O-β-Dglucoside (CG), astragaloside IV (AIV) and hydroxysafflor yellow A (HYA) was closer to polypharmacokinetics behavior. All formulations up/down-regulated the levels of GSH-Px and ATP/ET and LDH to varying degrees, among which formulation 7 had the best regulating effect. By drawing the time-concentration-effect curve, clockwise hysteresis loops were presented in the time-concentration-effect relationships between eleven components and LDH/ET, while the relationship between eleven components and ATP/GSH-Px expressed as anticlockwise hysteresis loops. In conclusion, the combination based on the combination principle of formulation 7 produced the best alleviation effect on CI/RI, and flavonoid fraction might played key role in this process. The CG, AIV and HYA were identified as Q-markers. This research offered a novel strategy for exploring the active substances, and provided further understanding regarding the development of drugs for the treatment of cerebral ischemia-reperfusion injury.
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Affiliation(s)
- Qiang Zeng
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, PR
China
| | - Chang Li
- School of Life Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, PR
China
| | - Shouchao Xu
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, PR
China
| | - Yu He
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, PR
China
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Sadiq AO, Awotidebe AW, Saeys W, Truijen S, Wong TWL, Ng SSM, Abdullahi A. Prevalence, associated factors and predictors of post stroke pneumonia in a Nigerian population: A retrospective study. J Stroke Cerebrovasc Dis 2023; 32:107404. [PMID: 37813084 DOI: 10.1016/j.jstrokecerebrovasdis.2023.107404] [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: 02/01/2023] [Revised: 09/20/2023] [Accepted: 09/30/2023] [Indexed: 10/11/2023] Open
Abstract
OBJECTIVES Stroke can trigger an immune response that can raise the risk of infection, alter tracheal epithelium, reduce pulmonary clearance and impair secretions drainage capacity. Infection, altered tracheal epithelium, reduced pulmonary clearance, impaired secretions drainage capacity and aspiration can cause pneumonia after stroke. The aim of this study is to find out the prevalence of post stroke pneumonia in a Nigerian population and factors that are associated with it. MATERIALS AND METHOD Study data was extracted from the case files of patients with stroke who were managed between 1st January, 2011 and 1st February, 2021 in the study setting. RESULTS The result showed that, there was a record of only 591 patients with stroke (mean age, 62.78 ± 14.86 years) who were managed in the two hospitals during the period of the study. Out of this number, only 102 (17.3 %) had pneumonia. Presence of the pneumonia was only significantly (p < 0.05) associated with sex, type of stroke, lower limb muscle power, and outcome (died or alive). However, only those with ischaemic stroke are less likely to have pneumonia (Odds ratio= 0.467; CI: 0.275 to 0.791, p= 0.005), and patients who survived the stroke and are alive are less likely to develop pneumonia (Odds ratio= 0.150; CI: 0.092 to 0.245, p < 0.001). CONCLUSIONS Pneumonia occurs to a large extent after stroke. Therefore, it is important measures are taken to prevent it or complications arising from it especially in those with a hemorrhagic stroke.
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Affiliation(s)
| | | | - Wim Saeys
- Department of Rehabilitation Sciences and Physiotherapy, University of Antwerp, Belgium
| | - Steven Truijen
- Department of Rehabilitation Sciences and Physiotherapy, University of Antwerp, Belgium
| | - Thomson W L Wong
- Department of Rehabilitation Sciences, Faculty of Health and Social Sciences, The Hong Kong Polytechnic University, Hong Kong Special Administrative Region, China
| | - Shamay S M Ng
- Department of Rehabilitation Sciences, Faculty of Health and Social Sciences, The Hong Kong Polytechnic University, Hong Kong Special Administrative Region, China
| | - Auwal Abdullahi
- Department of Physiotherapy, Bayero University Kano, Nigeria.
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30
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Collyer E, Boyle BR, Gomez-Galvez Y, Iacovitti L, Blanco-Suarez E. Absence of chordin-like 1 aids motor recovery in a mouse model of stroke. Exp Neurol 2023; 370:114548. [PMID: 37769794 DOI: 10.1016/j.expneurol.2023.114548] [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: 07/05/2023] [Revised: 09/06/2023] [Accepted: 09/24/2023] [Indexed: 10/03/2023]
Abstract
Chordin-like 1 (Chrdl1) is an astrocyte-secreted protein that regulates synaptic maturation, and limits plasticity via GluA2-containing AMPA receptors (AMPARs). It was demonstrated that Chrdl1 expression is very heterogeneous throughout the brain, and it is enriched in astrocytes in cortical layers 2/3, with peak expression in the visual cortex at postnatal day 14. In response to ischemic stroke, Chrdl1 is upregulated during the acute and sub-acute phases in the peri-infarct region, potentially hindering recovery after stroke. Here, we used photothrombosis to model ischemic stroke in the motor cortex of adult male and female mice. In this study, we demonstrate that elimination of Chrdl1 in a global knock-out mouse reduces apoptotic cell death at early post-stroke stages and prevents ischemia-driven synaptic loss of AMPA receptors at later time points, all contributing to faster motor recovery. This suggests that synapse-regulating astrocyte-secreted proteins such as Chrdl1 have therapeutic potential to aid functional recovery after an ischemic injury.
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Affiliation(s)
- Eileen Collyer
- Department of Neuroscience, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, USA; Vickie & Jack Farber Institute for Neuroscience, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, USA
| | - Bridget R Boyle
- Department of Neuroscience, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, USA; Vickie & Jack Farber Institute for Neuroscience, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, USA
| | - Yolanda Gomez-Galvez
- Department of Neuroscience, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, USA; Vickie & Jack Farber Institute for Neuroscience, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, USA; The Joseph and Marie Field Cerebrovascular Research Laboratory, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, USA
| | - Lorraine Iacovitti
- Department of Neuroscience, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, USA; Vickie & Jack Farber Institute for Neuroscience, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, USA; Department of Neurological Surgery, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, USA; The Joseph and Marie Field Cerebrovascular Research Laboratory, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, USA
| | - Elena Blanco-Suarez
- Department of Neuroscience, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, USA; Vickie & Jack Farber Institute for Neuroscience, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, USA; Department of Neurological Surgery, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, USA.
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31
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Gu H, Yang K, Li J, Lin J, Jing J, Xiong Y, Zhao X, Wang Y, Liu L, Meng X, Jiang Y, Li H, Wang Y, Li Z. Mediation effect of stroke recurrence in the association between post-stroke interleukin-6 and functional disability. CNS Neurosci Ther 2023; 29:3579-3587. [PMID: 37287421 PMCID: PMC10580327 DOI: 10.1111/cns.14289] [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: 03/10/2023] [Revised: 05/15/2023] [Accepted: 05/23/2023] [Indexed: 06/09/2023] Open
Abstract
AIM Post-stroke inflammation increases the risk of functional disability through enlarged cerebral infarct size directly and follow-up stroke event indirectly. We aimed to use post-stroke proinflammatory cytokine interleukin-6 (IL-6) as a marker of inflammatory burden and quantify post-stroke inflammation's direct and indirect effect on functional disability. METHODS We analyzed patients with acute ischemic stroke admitted to 169 hospitals in the Third China National Stroke Registry. Blood samples were collected within 24 h of admission. Stroke recurrence and functional outcome measured by the modified Rankin scale (mRS) were assessed via face-to-face interviews at 3 months. Functional disability was defined as an mRS score ≥2. Mediation analyses under the counterfactual framework were performed to examine the potential causal chain in which stroke recurrence may mediate the relationship between IL-6 and functional outcome. RESULTS Among the 7053 analyzed patients, the median (interquartile range [IQR]) NIHSS score was 3 (1-5), and the median (IQR) level of IL-6 was 2.61 (1.60-4.73) pg/mL. Stroke recurrence was observed in 458 (6.5%) patients, and functional disability was seen in 1708 (24.2%) patients at the 90-day follow-up. Per stand deviation (4.26 pg/mL) increase in the concentration of IL-6 was associated with an increased risk of stroke recurrence (adjusted odds ratio [aOR], 1.19; 95% CI, 1.09-1.29) and disability (aOR, 1.22; 95% CI, 1.15-1.30) within 90 days. Mediation analyses revealed that 18.72% (95% CI, 9.26%-28.18%) of the relationship between IL-6 and functional disability was mediated by stroke recurrence. CONCLUSIONS Stroke recurrence mediates less than 20% of the association between IL-6 and functional outcome at 90 days among patients with acute ischemic stroke. In addition to typical secondary prevention strategies for preventing stroke recurrence, more attention should be paid to novel anti-inflammatory therapy to improve functional outcomes directly.
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Affiliation(s)
- Hong‐Qiu Gu
- China National Clinical Research Center for Neurological Diseases, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- National Center for Healthcare Quality Management in Neurological Diseases, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
| | - Kai‐Xuan Yang
- China National Clinical Research Center for Neurological Diseases, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- National Center for Healthcare Quality Management in Neurological Diseases, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
| | - Jie‐Jie Li
- Vascular Neurology, Department of Neurology, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
| | - Jin‐Xi Lin
- China National Clinical Research Center for Neurological Diseases, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
| | - Jing Jing
- China National Clinical Research Center for Neurological Diseases, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
| | - Yun‐Yun Xiong
- China National Clinical Research Center for Neurological Diseases, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
| | - Xing‐Quan Zhao
- China National Clinical Research Center for Neurological Diseases, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- National Center for Healthcare Quality Management in Neurological Diseases, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- Vascular Neurology, Department of Neurology, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- Research Unit of Artificial Intelligence in Cerebrovascular Disease, Chinese Academy of Medical SciencesBeijingChina
| | - Yi‐Long Wang
- China National Clinical Research Center for Neurological Diseases, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- National Center for Healthcare Quality Management in Neurological Diseases, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- Vascular Neurology, Department of Neurology, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
| | - Li‐Ping Liu
- Neuro‐Intensive Care Unit, Department of Neurology, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
| | - Xia Meng
- China National Clinical Research Center for Neurological Diseases, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
| | - Yong Jiang
- China National Clinical Research Center for Neurological Diseases, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
| | - Hao Li
- China National Clinical Research Center for Neurological Diseases, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
| | - Yong‐Jun Wang
- China National Clinical Research Center for Neurological Diseases, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- National Center for Healthcare Quality Management in Neurological Diseases, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- Vascular Neurology, Department of Neurology, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- Research Unit of Artificial Intelligence in Cerebrovascular Disease, Chinese Academy of Medical SciencesBeijingChina
| | - Zi‐Xiao Li
- China National Clinical Research Center for Neurological Diseases, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- National Center for Healthcare Quality Management in Neurological Diseases, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- Vascular Neurology, Department of Neurology, Beijing Tiantan HospitalCapital Medical UniversityBeijingChina
- Research Unit of Artificial Intelligence in Cerebrovascular Disease, Chinese Academy of Medical SciencesBeijingChina
- Chinese Institute for Brain ResearchBeijingChina
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Feng S, Yang M, Liu S, He Y, Deng S, Gong Y. Oxidative stress as a bridge between age and stroke: A narrative review. JOURNAL OF INTENSIVE MEDICINE 2023; 3:313-319. [PMID: 38028635 PMCID: PMC10658045 DOI: 10.1016/j.jointm.2023.02.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 12/09/2022] [Accepted: 02/07/2023] [Indexed: 12/01/2023]
Abstract
Stroke is the third most common cause of death globally and a leading cause of disability. The cellular and molecular changes following stroke and causes of neuronal death are not fully understood, and there are few effective treatments currently available. A rapid increase in the levels of reactive oxygen species (ROS) post stroke can overwhelm antioxidant defenses and trigger a series of pathophysiologic events including the inflammatory response, blood-brain barrier (BBB) disruption, apoptosis, and autophagy, ultimately leading to neuron degeneration and apoptosis. It is thought that beyond a certain age, the ROS accumulation resulting from stroke increases the risk of morbidity and mortality. In the present review, we summarize the role of oxidative stress (OS) as a link between aging and stroke pathogenesis. We also discuss how antioxidants can play a beneficial role in the prevention and treatment of stroke by eliminating harmful ROS, delaying aging, and alleviating damage to neurons.
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Affiliation(s)
- Shengjie Feng
- Department of Critical Care Medicine, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Miaoxian Yang
- Department of Critical Care Medicine, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Shengpeng Liu
- Department of Pediatrics, Shenzhen People's Hospital, The Second Clinical Medical College of Jinan University, Shenzhen, Guangdong, 518020,China
| | - Yu He
- Department of Critical Care Medicine, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Shuixiang Deng
- Department of Critical Care Medicine, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Ye Gong
- Department of Critical Care Medicine, Huashan Hospital, Fudan University, Shanghai 200040, China
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai 200040, China
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Dou X, Ji W, Dai M, Sun S, Chen R, Yang J, Long J, Ge Y, Lin Y. Spatial and temporal mapping of neuron-microglia interaction modes in acute ischemic stroke. Biochem Pharmacol 2023; 216:115772. [PMID: 37659736 DOI: 10.1016/j.bcp.2023.115772] [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: 06/07/2023] [Revised: 08/29/2023] [Accepted: 08/30/2023] [Indexed: 09/04/2023]
Abstract
Ischemic stroke (IS) is a major cause of morbidity and mortality worldwide, accounting for 75-80% of all strokes. Under conditions of ischemia and hypoxia, neurons suffer damage or death, leading to a series of secondary immune reactions. Microglia, the earliest activated immune cells, can exert neurotoxic or neuroprotective effects on neurons through secretion of factors. There exists a complex interaction between neurons and microglia during this process. Moreover, the interaction between them becomes even more complex due to differences in the infarct area and reperfusion time. This review first elaborates on the differences in neuronal death modes between the ischemic core and penumbra, and then introduces the differences in microglial markers across different infarct areas with varying reperfusion time, indicating distinct functions. Finally, we focus on exploring the interaction modes between neurons and microglia in order to precisely target beneficial interactions and inhibit harmful ones, thus providing new therapeutic strategies for the treatment of IS.
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Affiliation(s)
- Xiaoke Dou
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Key Laboratory of Anesthesiology and Resuscitation (Huazhong University of Science and Technology), Ministry of Education, China
| | - Wei Ji
- Department of Anesthesiology, Yantai Affiliated Hospital of BinZhou Medical College, Yantai 264000, China
| | - Maosha Dai
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Key Laboratory of Anesthesiology and Resuscitation (Huazhong University of Science and Technology), Ministry of Education, China
| | - Shujun Sun
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Key Laboratory of Anesthesiology and Resuscitation (Huazhong University of Science and Technology), Ministry of Education, China; Department of Pain, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Rui Chen
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Key Laboratory of Anesthesiology and Resuscitation (Huazhong University of Science and Technology), Ministry of Education, China
| | - Juexi Yang
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Key Laboratory of Anesthesiology and Resuscitation (Huazhong University of Science and Technology), Ministry of Education, China
| | - Junhao Long
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Key Laboratory of Anesthesiology and Resuscitation (Huazhong University of Science and Technology), Ministry of Education, China
| | - Yangyang Ge
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Key Laboratory of Anesthesiology and Resuscitation (Huazhong University of Science and Technology), Ministry of Education, China.
| | - Yun Lin
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Institute of Anesthesia and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Key Laboratory of Anesthesiology and Resuscitation (Huazhong University of Science and Technology), Ministry of Education, China.
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Fan PL, Wang SS, Chu SF, Chen NH. Time-dependent dual effect of microglia in ischemic stroke. Neurochem Int 2023; 169:105584. [PMID: 37454817 DOI: 10.1016/j.neuint.2023.105584] [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: 05/15/2023] [Revised: 07/07/2023] [Accepted: 07/10/2023] [Indexed: 07/18/2023]
Abstract
Stroke, the third leading cause of death and disability worldwide, is classified into ischemic or hemorrhagic, in which approximately 85% of strokes are ischemic. Ischemic stroke occurs as a result of arterial occlusion due to embolus or thrombus, with ischemia in the perfusion territory supplied by the occluded artery. The traditional concept that ischemic stroke is solely a vascular occlusion disorder has been expanded to include the dynamic interaction between microglia, astrocytes, neurons, vascular cells, and matrix components forming the "neurovascular unit." Acute ischemic stroke triggers a wide spectrum of neurovascular disturbances, glial activation, and secondary neuroinflammation that promotes further injury, ultimately resulting in neuronal death. Microglia, as the resident macrophages in the central nervous system, is one of the first responders to ischemic injury and plays a significant role in post-ischemic neuroinflammation. In this review, we reviewed the mechanisms of microglia in multiple stages of post-ischemic neuroinflammation development, including acute, sub-acute and chronic phases of stroke. A comprehensive understanding of the dynamic variation and the time-dependent role of microglia in post-stroke neuroinflammation could aid in the search for more effective therapeutics and diagnostic strategies for ischemic stroke.
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Affiliation(s)
- Ping-Long Fan
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
| | - Sha-Sha Wang
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
| | - Shi-Feng Chu
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica & Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China.
| | - Nai-Hong Chen
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China; State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica & Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China.
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Chichai AS, Popova TN, Kryl'skii ED, Oleinik SA, Razuvaev GA. Indole-3-carbinol mitigates oxidative stress and inhibits inflammation in rat cerebral ischemia/reperfusion model. Biochimie 2023; 213:1-11. [PMID: 37120006 DOI: 10.1016/j.biochi.2023.04.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 04/26/2023] [Accepted: 04/27/2023] [Indexed: 05/01/2023]
Abstract
Ischemia is a significant pathogenetic factor of stroke with very limited treatment options. The objective of our research was to evaluate the protective properties of indole-3-carbinol (I3C) and its effect on redox status parameters, inflammation, and apoptosis intensity in cerebral ischemia/reperfusion injury (CIRI) in rats. I3C administration to CIRI rats decreased levels of oxidative stress markers and improved aerobic metabolism compared to the animals with CIRI. A decrease in myeloperoxidase activity, proinflammatory cytokines mRNA levels, and expression of redox-sensitive factor Nuclear Factor-κB was observed in rats with CIRI that received I3C. I3C-treated rats with pathology showed decreased caspase activity and apoptosis-inducing factor expression, compared to the animals in the CIRI group. Obtained data indicate that I3C has a neuroprotective and anti-ischemic effect in CIRI that may be related to its antioxidant properties and ability to reduce the inflammatory response and apoptosis.
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Affiliation(s)
- Aleksandra Sergeevna Chichai
- Department of Medical Biochemistry and Microbiology, Voronezh State University, Universitetskaya Sq. 1, 394018, Voronezh, Russia.
| | - Tatyana Nikolaevna Popova
- Department of Medical Biochemistry and Microbiology, Voronezh State University, Universitetskaya Sq. 1, 394018, Voronezh, Russia.
| | - Evgenii Dmitrievich Kryl'skii
- Department of Medical Biochemistry and Microbiology, Voronezh State University, Universitetskaya Sq. 1, 394018, Voronezh, Russia.
| | - Sergei Aleksandrovich Oleinik
- Department of Medical Biochemistry and Microbiology, Voronezh State University, Universitetskaya Sq. 1, 394018, Voronezh, Russia.
| | - Grigorii Andreevich Razuvaev
- Department of Medical Biochemistry and Microbiology, Voronezh State University, Universitetskaya Sq. 1, 394018, Voronezh, Russia.
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Seo HW, Ha TY, Ko G, Jang A, Choi JW, Lee DH, Chang KA. Scutellaria baicalensis Attenuated Neurological Impairment by Regulating Programmed Cell Death Pathway in Ischemic Stroke Mice. Cells 2023; 12:2133. [PMID: 37681864 PMCID: PMC10486384 DOI: 10.3390/cells12172133] [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: 07/21/2023] [Revised: 08/14/2023] [Accepted: 08/21/2023] [Indexed: 09/09/2023] Open
Abstract
Stroke is a major global health problem that causes significant mortality and long-term disability. Post-stroke neurological impairment is a complication that is often underestimated with the risk of persistent neurological deficits. Although traditional Chinese medicines have a long history of being used for stroke, their scientific efficacy remains unclear. Scutellaria baicalensis, an herbal component known for its anti-inflammatory and antioxidant properties, has traditionally been used to treat brain disorders. This study investigated the therapeutic effects of the Scutellaria baicalensis extraction (SB) during the acute stage of ischemic stroke using photothrombotic (PTB)-induced and transient middle cerebral artery occlusion (tMCAO) model mice. We found that SB mitigated ischemic brain injury, as evidenced by a significant reduction in the modified neurological severity score in the acute stage of PTB and both the acute and chronic stages of tMCAO. Furthermore, we elucidated the regulatory role of SB in the necroptosis and pyroptosis pathways during the acute stage of stroke, underscoring its protective effects. Behavioral assessments demonstrated the effectiveness of SB in ameliorating motor dysfunction and cognitive impairment compared to the group receiving the vehicle. Our findings highlight the potential of SB as a promising therapeutic candidate for stroke. SB was found to help modulate the programmed cell death pathways, promote neuroprotection, and facilitate functional recovery.
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Affiliation(s)
- Ho-won Seo
- Department of Health Science and Technology, Gachon Advanced Institute for Health Sciences & Technology, Gachon University, Incheon 21999, Republic of Korea; (H.-w.S.); (G.K.)
| | - Tae-Young Ha
- Neuroscience Research Institute, Gachon University, Incheon 21565, Republic of Korea;
| | - Geon Ko
- Department of Health Science and Technology, Gachon Advanced Institute for Health Sciences & Technology, Gachon University, Incheon 21999, Republic of Korea; (H.-w.S.); (G.K.)
| | - Aram Jang
- Department of Herbal Pharmacology, College of Korean Medicine, Gachon University, 1342 Seongnamdae-ro, Sujeong-gu, Seongnam-si 13120, Gyeonggi-do, Republic of Korea;
| | - Ji-Woong Choi
- College of Pharmacy and Gachon Institute of Pharmaceutical Sciences, Gachon University, Incheon 21936, Republic of Korea;
| | - Dong-hun Lee
- Department of Herbal Pharmacology, College of Korean Medicine, Gachon University, 1342 Seongnamdae-ro, Sujeong-gu, Seongnam-si 13120, Gyeonggi-do, Republic of Korea;
| | - Keun-A Chang
- Department of Health Science and Technology, Gachon Advanced Institute for Health Sciences & Technology, Gachon University, Incheon 21999, Republic of Korea; (H.-w.S.); (G.K.)
- Neuroscience Research Institute, Gachon University, Incheon 21565, Republic of Korea;
- Department of Pharmacology, College of Medicine, Gachon University, Incheon 21999, Republic of Korea
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Hou B, Li D, Wang D, Jiang C, Wang G, Wang D, Yan G, Guo X, Zhao L, Wan Z, Fan C, Cao W, Ren H. Neuroprotective Effects of Vinpocetine Against Ischemia-Reperfusion Injury Via Inhibiting NLRP3 Inflammasome Signaling Pathway. Neuroscience 2023; 526:74-84. [PMID: 37290685 DOI: 10.1016/j.neuroscience.2023.05.021] [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: 02/18/2023] [Revised: 05/17/2023] [Accepted: 05/23/2023] [Indexed: 06/10/2023]
Abstract
Ischemic stroke is one of the main causes of serious disability and death worldwide. NLRP3 inflammasome is an intracellular pattern recognition receptor composed of polyprotein complex, which participates in mediating a series of inflammatory responses and is considered as a potential target for the treatment of ischemic stroke. Vinpocetine, a derivative of vincamine, has been widely used in the prevention and treatment of ischemic stroke. However, the therapeutic mechanism of vinpocetine is not clear, and its effect on NLRP3 inflammasome remains to be determined. In this study, we used the mouse model of transient middle cerebral artery occlusion (tMCAO) to simulate the occurrence of ischemic stroke. Different doses of vinpocetine (5, 10, 15 mg/kg/d) were injected intraperitoneally for 3 days after ischemia-reperfusion in mice. The effects of different doses of vinpocetine on the degree of ischemia-reperfusion injury in mice were observed by TTC staining and modified neurological severity score scale, and the optimal dose was determined. Then, based on this optimal dose, we observed the effects of vinpocetine on apoptosis, microglial proliferation and NLRP3 inflammasome. In addition, we compared the effects of vinpocetine and MCC950 (a specific inhibitor of NLRP3 inflammasome) on NLRP3 inflammasome. Our results show that vinpocetine can effectively reduce the infarct volume and promote the recovery of behavioral function in stroke mice, and the maximal beneficial effects were observed at the dose of 10 mg/kg/d. Vinpocetine can effectively inhibit the apoptosis of peri-infarct neurons, promote the expression of Bcl-2, inhibit the expression of Bax and Cleaved Caspase-3, and reduce the proliferation of peri-infarct microglia. In addition, vinpocetine, like MCC950, can reduce the expression of NLRP3 inflammasome. Therefore, vinpocetine can effectively alleviate the ischemia-reperfusion injury in mice, and the inhibition of NLRP3 inflammasome may be an important therapeutic mechanism of vinpocetine.
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Affiliation(s)
- Boru Hou
- Department of Neurosurgery, Lanzhou University Second Hospital, Lanzhou, China.
| | - Donghai Li
- Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, School of Life Sciences, Lanzhou University, Lanzhou, China
| | - Dengfeng Wang
- Department of Neurosurgery, Lanzhou University Second Hospital, Lanzhou, China
| | - Cheng Jiang
- Department of Neurosurgery, Lanzhou University Second Hospital, Lanzhou, China
| | - Gang Wang
- Department of Neurosurgery, Lanzhou University Second Hospital, Lanzhou, China
| | - Dong Wang
- Department of Neurosurgery, Lanzhou University Second Hospital, Lanzhou, China
| | - Guizhong Yan
- Department of Neurosurgery, Lanzhou University Second Hospital, Lanzhou, China
| | - Xiumei Guo
- Department of Neurosurgery, Lanzhou University Second Hospital, Lanzhou, China
| | - Lixia Zhao
- Department of Neurosurgery, Lanzhou University Second Hospital, Lanzhou, China
| | - Zhuangzhuang Wan
- Second Clinical Medical College, Lanzhou University, Lanzhou, China
| | - Chenlong Fan
- Second Clinical Medical College, Lanzhou University, Lanzhou, China
| | - Wencheng Cao
- Second Clinical Medical College, Lanzhou University, Lanzhou, China
| | - Haijun Ren
- Department of Neurosurgery, Lanzhou University Second Hospital, Lanzhou, China.
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Shabani M, Erfani S, Abdolmaleki A, Afzali FE, Khoshnazar SM. Alpha-pinene modulates inflammatory response and protects against brain ischemia via inducible nitric oxide synthase-nuclear factor-kappa B-cyclooxygenase-2 pathway. Mol Biol Rep 2023; 50:6505-6516. [PMID: 37329479 DOI: 10.1007/s11033-023-08480-8] [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: 02/06/2023] [Accepted: 04/19/2023] [Indexed: 06/19/2023]
Abstract
BACKGROUNDS Cerebral ischemia-reperfusion leads to brain tissue injury. Inflammation and apoptosis play pivotal roles in the pathology. OBJECTIVE α-Pinene is an organic compound of many aromatic plants and is known as a potent agent to possess antioxidant, and anti-inflammatory properties. Here, we sought to identify the anti-inflammatory and anti-apoptosis mechanism by which α-Pinene improves brain ischemia injury. RESULTS Male Wistar rats underwent MCAO surgery for 1 h and different doses of alpha-pinene (25, 50, and 100 mg/kg) were intraperitoneally injected immediately after reperfusion to test this hypothesis. IV, NDS, gene and protein expression of inducible nitric oxide synthase (iNOS), cyclogenase-2 (COX-2), nuclear factor kappa B (NF-κB) p65, and caspase-3 were assessed 24 h after reperfusion. Results demonstrated that NF-κB p65, iNOS, and COX-2 gene and protein expression increased in the hippocampus, cortex, and striatum after 24 h of reperfusion, and alpha-pinene significantly inhibited NF-kB p65, iNOS, and COX-2 expression. Also, alpha-pinene significantly reduced the ischemia/reperfusion-induced caspase-3 activation in CA1 area of hippocampus. CONCLUSION Results showed that alpha-pinene protects the cerebral against ischemic damage caused by MCAO, and this effect may be through the regulating iNOS -NF-kappa B- COX-2 and caspase-3 inflammatory and apoptotic pathways.
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Affiliation(s)
- Mohammad Shabani
- Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Sohaila Erfani
- Department of Biology, Faculty of Science, Ilam University, Ilam, Iran
| | - Arash Abdolmaleki
- Department of Biophysics, Faculty of Advanced Technologies, University of Mohaghegh Ardabili, Namin, Iran
| | - Fatemeh Ephtekhar Afzali
- Department of Animal Science and Biotechnology, Faculty of Life Sciences and Biotechnology, Shahid Beheshti University, Tehran, Iran
| | - Seyedeh Mahdieh Khoshnazar
- Gastroenterology and Hepatology Research Center, Institute of Basic and Clinical Physiology Sciences, Kerman University of Medical Sciences, Kerman, Iran.
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Chen L, Wang M, Yang C, Wang Y, Hou B. The role of high-sensitivity C-reactive protein serum levels in the prognosis for patients with stroke: a meta-analysis. Front Neurol 2023; 14:1199814. [PMID: 37342777 PMCID: PMC10278886 DOI: 10.3389/fneur.2023.1199814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 05/22/2023] [Indexed: 06/23/2023] Open
Abstract
Background The impact of high-sensitivity C-reactive protein (hs-CRP) as a biomarker of inflammation on the prognosis of stroke patients remains controversial, this study was conducted to evaluate the prognostic value of hs-CRP levels for patients with stroke. Methods PubMed, Web of Science, Embase, and Cochrane Library databases were searched from inception to October 28, 2022. Outcome measures were all-cause mortality, recurrent stroke, and poor prognosis. The relationship between the highest versus lowest levels of hs-CRP or per unit increment and outcomes as measured by risk ratio (RR) and corresponding 95% confidence intervals (CI). Results A total of 39 articles were eligible for meta-analysis. High hs-CRP levels at admission were associated with mortality among patients with acute ischemic stroke (AIS) [RR = 3.84, 95% CI (2.41 ~ 6.111); p < 0.001], risk of recurrent stroke [RR = 1.88, 95%CI (1.41 ~ 2.52); p < 0.001], and poor prognosis [RR = 1.77, 95% CI (1.59 ~ 1.97); p < 0.001]. The risk ratios for the association of per unit increase in hs-CRP levels with mortality, risk of recurrent stroke, and poor prognosis were as follows, respectively: 1.42 [95% CI (1.19-1.69); p < 0.001], 1.03 [95% CI (1.01-1.04); p = 0.003], and 1.27 [95% CI (1.10-1.47); p = 0.001]. For hemorrhagic stroke (HS), the risk ratios (RR) for the highest versus the lowest (reference) category of hsCRP or per unit increment to all-cause mortality were 4.36 [95% CI (1.38-13.73); p = 0.012] and 1.03 [95% CI (0.98-1.08); p = 0.238]. Conclusion Hs-CRP levels are strongly associated with mortality, risk of stroke recurrence and poor prognosis in stroke patients. Therefore, hs-CRP levels may contribute to the prognosis prediction of these patients.
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Affiliation(s)
- Liuting Chen
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Zhejiang, Hangzhou, China
| | - Min Wang
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Zhejiang, Hangzhou, China
| | - Chanrui Yang
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Zhejiang, Hangzhou, China
| | - Yefei Wang
- The Second Clinical Medical College, Zhejiang Chinese Medical University, Zhejiang, Hangzhou, China
| | - Bonan Hou
- Department of Neurology, The Second Affiliated Hospital of Zhejiang Chinese Medical University, Zhejiang, Hangzhou, China
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Zhang P, You S, Ding X, Luan P, Xu J, Cui Q, Wang F, Li R, Zhu Y, Zhang J. Protective effect and underlying mechanism of muscone on acute cerebral ischemia-reperfusion injury in rats. JOURNAL OF ETHNOPHARMACOLOGY 2023; 308:116287. [PMID: 36841376 DOI: 10.1016/j.jep.2023.116287] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 02/12/2023] [Accepted: 02/14/2023] [Indexed: 06/18/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Musk is a widely used traditional Chinese medicine, which has resuscitation, activating blood, and disperse swelling effects. Musk is commonly used in the prevention of myocardial infarction and ischemic stroke, and muscone is its main active component. AIM OF THE STUDY The effect and mechanism of muscone to improve the condition of ischemic stroke is not clear, accordingly, we verified its efficacy in ischemia-reperfused rats, and investigated its mechanism by PC12 and THP-1 cells. METHODS A transient middle cerebral artery occlusion (tMCAO) rat model was established for in vivo experiments. 2,3,5-Triphenyl Tetrazolium Chloride (TTC) staining was used to calculate infarct rate. Neuroprotection and angiogenesis were assessed by Hematoxylin-eosin (HE) staining, nissl staining, immunofluorescence staining, and quantitative real-time PCR (qRT-PCR). Oxygen glucose deprivation-reperfusion (OGD/R) model of PC12 cells was established for neuroprotection analysis, where CCK-8 assay was used to measure cell viability, flow cytometry and Hoechst 33258 staining were used to demonstrate apoptosis, and protein levels were detected by Western blot. For angiogenesis analysis, enzyme-linked immunosorbent assay (ELISA) and qRT-PCR were used to detect angiogenic factors expressed by THP-1. Cell viability assay, scratch wound assay, and tube formation assay were used to evaluate angiogenic effect of HUVECs treated with medium of THP-1. And the angiogenic pathway in HUVECs was detected by Western blot. RESULTS According to the results, in cerebral ischemia-reperfusion rats, the infarct rate and tissue damage were significantly reduced by muscone, and the expression of neurotrophic factors and angiogenesis-related factors were all elevated. In OGD/R-PC12 cell models, muscone could increase cell viability and inhibit apoptosis via Bax/Bcl-2/Caspase-3 pathway. In THP-1-mediated angiogenesis of HUVECs, muscone promoted the secretion of angiogenesis-related factors in THP-1 and thus indirectly promoted the proliferation, migration and tube formation of HUVECs, and then regulated phosphorylation of VEGFR2 and Akt in HUVECs. CONCLUSIONS Our study indicated that muscone may be a potential neuroprotective and proangiogenic agent in cerebral ischemia.
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Affiliation(s)
- Pei Zhang
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional, Chinese Medicine (IRI), Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Suxin You
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional, Chinese Medicine (IRI), Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Xinyue Ding
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional, Chinese Medicine (IRI), Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China; Putuo District Central Hospital of Shanghai, Shanghai, 200062, China
| | - Pengwei Luan
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional, Chinese Medicine (IRI), Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China; School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, 450001, China
| | - Jiazhen Xu
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional, Chinese Medicine (IRI), Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Qianfei Cui
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional, Chinese Medicine (IRI), Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Feiyun Wang
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional, Chinese Medicine (IRI), Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Ruixiang Li
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional, Chinese Medicine (IRI), Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Yuying Zhu
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional, Chinese Medicine (IRI), Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
| | - Jiange Zhang
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional, Chinese Medicine (IRI), Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
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Monsour M, Borlongan CV. The central role of peripheral inflammation in ischemic stroke. J Cereb Blood Flow Metab 2023; 43:622-641. [PMID: 36601776 PMCID: PMC10108194 DOI: 10.1177/0271678x221149509] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 09/23/2022] [Accepted: 12/11/2022] [Indexed: 01/06/2023]
Abstract
Stroke pathology and its treatments conventionally focus on the brain. Probing inflammation, a critical secondary cell death mechanism in stroke, has been largely relegated to the brain. To this end, peripheral inflammation has emerged as an equally potent contributor to the onset and progression of stroke secondary cell death. Here, we review novel concepts on peripheral organs displaying robust inflammatory response to stroke. These inflammation-plagued organs include the spleen, cervical lymph nodes, thymus, bone marrow, gastrointestinal system, and adrenal glands, likely converging their inflammatory effects through B and T-cells. Recognizing the significant impact of this systemic inflammation, we also discuss innovative stroke therapeutics directed at sequestration of peripheral inflammation. This review paper challenges the paradigm of a brain-centered disease pathology and treatment and offers a peripheral approach to our stroke understanding.
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Affiliation(s)
- Molly Monsour
- Center of Excellence for Aging and Brain Repair,
Department of Neurosurgery and Brain Repair, University of South Florida Morsani
College of Medicine, Tampa, FL 33612, USA
| | - Cesar V Borlongan
- Center of Excellence for Aging and Brain Repair,
Department of Neurosurgery and Brain Repair, University of South Florida Morsani
College of Medicine, Tampa, FL 33612, USA
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42
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Pei X, Tian M, Wang Y, Xin Y, Jiang J, Wang Y, Gong Y. Advances in the knowledge on the role of apoptosis repressor with caspase recruitment domain in hemorrhagic stroke. JOURNAL OF INTENSIVE MEDICINE 2023; 3:138-143. [PMID: 37188117 PMCID: PMC10175730 DOI: 10.1016/j.jointm.2022.11.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 10/03/2022] [Accepted: 11/23/2022] [Indexed: 05/17/2023]
Abstract
The apoptosis repressor with caspase recruitment domain (ARC) plays a critical role in extrinsic apoptosis initiation via death receptor ligands, physiological stress, infection response in a tissue-dependent manner, endoplasmic reticulum (ER) stress, genotoxic drugs, ionizing radiation, oxidative stress, and hypoxia. Recent studies have suggested that regulating apoptosis-related pathways can improve outcomes for patients with neurological diseases, such as hemorrhagic stroke. ARC expression is significantly correlated with acute cerebral hemorrhage. However, the mechanism by which it mediates the anti-apoptosis pathway remains poorly known. Here, we discuss the function of ARC in hemorrhagic stroke and argue that it could serve as an effective target for the treatment of hemorrhagic stroke.
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Affiliation(s)
- Xu Pei
- Department of Critical Care Medicine, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Mi Tian
- Department of Critical Care Medicine, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Yao Wang
- Department of Critical Care Medicine, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Yuewen Xin
- Department of Critical Care Medicine, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Junliang Jiang
- Department of Critical Care Medicine, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Yunyun Wang
- Department of Critical Care Medicine, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Ye Gong
- Department of Critical Care Medicine, Huashan Hospital, Fudan University, Shanghai 200040, China
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai 200040, China
- Corresponding author: Ye Gong, Department of Critical Care Medicine, Huashan Hospital, Fudan University, 12 Urumqi Road, Shanghai 200040, China.
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43
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Zhang Z, Liu C, Zhou X, Zhang X. The Critical Role of Sirt1 in Subarachnoid Hemorrhages: Mechanism and Therapeutic Considerations. Brain Sci 2023; 13:brainsci13040674. [PMID: 37190639 DOI: 10.3390/brainsci13040674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 03/28/2023] [Accepted: 04/13/2023] [Indexed: 05/17/2023] Open
Abstract
The subarachnoid hemorrhage (SAH) is an important cause of death and long-term disability worldwide. As a nicotinamide adenine dinucleotide-dependent deacetylase, silent information regulator 1 (Sirt1) is a multipotent molecule involved in many pathophysiological processes. A growing number of studies have demonstrated that Sirt1 activation may exert positive effects on SAHs by regulating inflammation, oxidative stress, apoptosis, autophagy, and ferroptosis. Thus, Sirt1 agonists may serve as potential therapeutic drugs for SAHs. In this review, we summarized the current state of our knowledge on the relationship between Sirt1 and SAHs and provided an updated overview of the downstream molecules of Sirt1 in SAHs.
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Affiliation(s)
- Zhonghua Zhang
- Department of Neurosurgery, Jinling Hospital, Jinling School of Clinical Medicine, Nanjing Medical University, Nanjing 210029, China
| | - Cong Liu
- Department of Ophthalmology, Jinling Hospital, Jinling School of Clinical Medicine, Nanjing Medical University, Nanjing 210029, China
| | - Xiaoming Zhou
- Department of Neurosurgery, Jinling Hospital, Jinling School of Clinical Medicine, Nanjing Medical University, Nanjing 210029, China
| | - Xin Zhang
- Department of Neurosurgery, Jinling Hospital, Jinling School of Clinical Medicine, Nanjing Medical University, Nanjing 210029, China
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44
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Li L, Song JJ, Zhang MX, Zhang HW, Zhu HY, Guo W, Pan CL, Liu X, Xu L, Zhang ZY. Oridonin ameliorates caspase-9-mediated brain neuronal apoptosis in mouse with ischemic stroke by inhibiting RIPK3-mediated mitophagy. Acta Pharmacol Sin 2023; 44:726-740. [PMID: 36216897 PMCID: PMC10042824 DOI: 10.1038/s41401-022-00995-3] [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: 03/19/2022] [Accepted: 09/02/2022] [Indexed: 12/11/2022] Open
Abstract
Neuronal loss is a primary factor in determining the outcome of ischemic stroke. Oridonin (Ori), a natural diterpenoid compound extracted from the Chinese herb Rabdosia rubescens, has been shown to exert anti-inflammatory and neuroregulatory effects in various models of neurological diseases. In this study we investigated whether Ori exerted a protective effect against reperfusion injury-induced neuronal loss and the underlying mechanisms. Mice were subjected to transient middle cerebral artery occlusion (tMCAO), and were injected with Ori (5, 10, 20 mg/kg, i.p.) at the beginning of reperfusion. We showed that Ori treatment rescued neuronal loss in a dose-dependent manner by specifically inhibiting caspase-9-mediated neuronal apoptosis and exerted neuroprotective effects against reperfusion injury. Furthermore, we found that Ori treatment reversed neuronal mitochondrial damage and loss after reperfusion injury. In N2a cells and primary neurons, Ori (1, 3, 6 μM) exerted similar protective effects against oxygen-glucose deprivation and reoxygenation (OGD/R)-induced injury. We then conducted an RNA-sequencing assay of the ipsilateral brain tissue of tMCAO mice, and identified receptor-interacting protein kinase-3 (RIPK3) as the most significantly changed apoptosis-associated gene. In N2a cells after OGD/R and in the ipsilateral brain region, we found that RIPK3 mediated excessive neuronal mitophagy by activating AMPK mitophagy signaling, which was inhibited by Ori or 3-MA. Using in vitro and in vivo RIPK3 knockdown models, we demonstrated that the anti-apoptotic and neuroprotective effects of Ori were RIPK3-dependent. Collectively, our results show that Ori effectively inhibits RIPK3-induced excessive mitophagy and thereby rescues the neuronal loss in the early stage of ischemic stroke.
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Affiliation(s)
- Lei Li
- School of Basic Medical Sciences, Nanjing Medical University, Nanjing, 211166, China
| | - Jing-Jing Song
- School of Basic Medical Sciences, Nanjing Medical University, Nanjing, 211166, China
| | - Meng-Xue Zhang
- School of Basic Medical Sciences, Nanjing Medical University, Nanjing, 211166, China
| | - Hui-Wen Zhang
- School of Basic Medical Sciences, Nanjing Medical University, Nanjing, 211166, China
| | - Hai-Yan Zhu
- School of Basic Medical Sciences, Nanjing Medical University, Nanjing, 211166, China
| | - Wei Guo
- Department of Urology, The Affiliated Wuxi No.2 People's Hospital of Nanjing Medical University, Wuxi, 214002, China
| | - Cai-Long Pan
- School of Basic Medical Sciences, Nanjing Medical University, Nanjing, 211166, China
| | - Xue Liu
- School of Basic Medical Sciences, Nanjing Medical University, Nanjing, 211166, China
| | - Lu Xu
- School of Basic Medical Sciences, Nanjing Medical University, Nanjing, 211166, China.
- Key Laboratory of Antibody Technique of Ministry of Health, Nanjing Medical University, Nanjing, 211166, China.
| | - Zhi-Yuan Zhang
- School of Basic Medical Sciences, Nanjing Medical University, Nanjing, 211166, China.
- Department of Neurology, Sir Run Run Hospital, Nanjing Medical University, Nanjing, 211166, China.
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Murthy PM, Ca J, Kandi V, Reddy MK, Harikrishna GV, Reddy K, Jp R, Reddy AN, Narang J. Connecting the Dots: The Interplay Between Stroke and the Gut-Brain Axis. Cureus 2023; 15:e37324. [PMID: 37182027 PMCID: PMC10168015 DOI: 10.7759/cureus.37324] [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] [Accepted: 04/09/2023] [Indexed: 05/16/2023] Open
Abstract
This article discusses the interplay between the gut-brain axis and stroke, a multifaceted neurological disorder that affects millions of people worldwide. The gut-brain axis is a bidirectional communication network linking the central nervous system (CNS) to the gastrointestinal tract (GIT), including the enteric nervous system (ENS), vagus nerve, and gut microbiota. Dysbiosis in the gut microbiota, alterations in the ENS and vagus nerve, and gut motility changes have been linked to increased inflammation and oxidative stress, which are contributing factors in the development and progression of stroke. Research on animals has shown that modifying the gut microbiota can impact the results of a stroke. Germ-free mice displayed improved neurological function and decreased infarct volumes, indicating a positive effect. Furthermore, studies in stroke patients have shown alterations in the gut microbiota composition, indicating that targeting dysbiosis could be a potential therapeutic strategy for stroke. The review suggests that targeting the gut-brain axis may represent a potential therapeutic approach to reduce the morbidity and mortality associated with stroke.
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Affiliation(s)
- Pooja M Murthy
- Medicine, Vydehi Institute of Medical Sciences and Research Centre, Bangalore, IND
| | - Jayashankar Ca
- Internal Medicine, Vydehi Institute of Medical Sciences and Research Centre, Bangalore, IND
| | - Venkataramana Kandi
- Clinical Microbiology, Prathima Institute of Medical Sciences, Karimnagar, IND
| | - Mithun K Reddy
- Medicine, Vydehi Institute of Medical Sciences and Research Centre, Bangalore, IND
| | | | - Kavitha Reddy
- General Medicine, Vydehi Institute of Medical Sciences and Research Centre, Bangalore, IND
| | - Ramya Jp
- General Medicine, Vydehi Institute of Medical Sciences and Research Centre, Bangalore, IND
| | - Ankush N Reddy
- General Medicine, Vydehi Institute of Medical Sciences and Research Centre, Bangalore, IND
| | - Jigya Narang
- Internal Medicine, Vydehi Institute of Medical Sciences and Research Centre, Bangalore, IND
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46
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Xie J, Lv H, Liu X, Xia Z, Li J, Hong E, Ding B, Zhang W, Chen Y. Nox4-and Tf/TfR-mediated peroxidation and iron overload exacerbate neuronal ferroptosis after intracerebral hemorrhage: Involvement of EAAT3 dysfunction. Free Radic Biol Med 2023; 199:67-80. [PMID: 36805044 DOI: 10.1016/j.freeradbiomed.2023.02.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 02/09/2023] [Accepted: 02/15/2023] [Indexed: 02/19/2023]
Abstract
Intracerebral hemorrhage (ICH) induces high mortality and disability. Neuronal death is the principal factor to unfavourable prognosis in ICH. However, the mechanisms underlying this association remain unclear. In this study, we investigated the molecular mechanisms by which neuronal ferroptosis occurs after ICH and whether the use of corresponding modulators can inhibit neuronal death and improve early outcomes in a rat ICH model. Our findings indicated that Nox4 and TF/TfR were upregulated in the perihematomal tissues of ICH rats. Oxidative stress and iron overload induced by Nox4 and TF/TfR promoted neuronal ferroptosis post-ICH. In contrast, application of Nox4-siRNA and the deferoxamine (DFO) attenuated peroxidation and iron deposition in the hemorrhagic brain, alleviated neuronal ferroptosis, and improved sensorimotor function in ICH rats. Additionally, our findings indicated that the post-ICH neuronal reduced glutathione (GSH) depletion were not related to dysfunctional glutamine delivery in astrocytes but rather to downregulation of EAAT3 due to lipid peroxidation-induced dysfunction in the neuronal membrane. These findings indicate that ferroptosis is involved in neuronal death in model rats with collagenase-induced ICH. Oxidative stress and iron overload induced by Nox4 and TF/TfR exacerbate ferroptosis after ICH, while Nox4 downregulation and iron chelation exert neuroprotective effects. The present results highlight the cysteine importer EAAT3 as a potential biomarker of ferroptosis and provide insight into the neuronal death process that occurs following ICH, which may aid in the development of translational treatment strategies for ICH.
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Affiliation(s)
- Jiayu Xie
- Department of Neurosurgery, Zhujiang Hospital of Southern Medical University, The National Key Clinical Specialty, The Neurosurgery Institute of Guangdong Province, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, The Engineering Technology Research Center of Education Ministry of China, Southern Medical University, Guangzhou, 510282, China; Department of Neurosurgery, The First People's Hospital of Changde City of Xiangya Medical College of South Central University, Changde, 415000, China
| | - Hongzhu Lv
- Department of Neurosurgery, Zhujiang Hospital of Southern Medical University, The National Key Clinical Specialty, The Neurosurgery Institute of Guangdong Province, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, The Engineering Technology Research Center of Education Ministry of China, Southern Medical University, Guangzhou, 510282, China; Department of Neurosurgery, Dalian Municipal Central Hospital, Dalian, 116089, China
| | - Xuanbei Liu
- Department of Neurosurgery, Zhujiang Hospital of Southern Medical University, The National Key Clinical Specialty, The Neurosurgery Institute of Guangdong Province, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, The Engineering Technology Research Center of Education Ministry of China, Southern Medical University, Guangzhou, 510282, China
| | - Zhennan Xia
- Department of Neurosurgery, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, 510120, China
| | - Jiangwei Li
- Department of Neurosurgery, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, 510120, China
| | - Enhui Hong
- Department of Neurosurgery, Zhujiang Hospital of Southern Medical University, The National Key Clinical Specialty, The Neurosurgery Institute of Guangdong Province, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, The Engineering Technology Research Center of Education Ministry of China, Southern Medical University, Guangzhou, 510282, China
| | - Boyun Ding
- Department of Neurosurgery, Zhujiang Hospital of Southern Medical University, The National Key Clinical Specialty, The Neurosurgery Institute of Guangdong Province, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, The Engineering Technology Research Center of Education Ministry of China, Southern Medical University, Guangzhou, 510282, China
| | - Wenying Zhang
- Department of Neurosurgery, Zhujiang Hospital of Southern Medical University, The National Key Clinical Specialty, The Neurosurgery Institute of Guangdong Province, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, The Engineering Technology Research Center of Education Ministry of China, Southern Medical University, Guangzhou, 510282, China
| | - Yizhao Chen
- Department of Neurosurgery, Zhujiang Hospital of Southern Medical University, The National Key Clinical Specialty, The Neurosurgery Institute of Guangdong Province, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, The Engineering Technology Research Center of Education Ministry of China, Southern Medical University, Guangzhou, 510282, China; Department of Neurosurgery, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, 510120, China.
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Wang XX, Mao GH, Li QQ, Tang J, Zhang H, Wang KL, Wang L, Ni H, Sheng R, Qin ZH. Neuroprotection of NAD+ and NBP against ischemia/reperfusion brain injury is associated with restoration of sirtuin-regulated metabolic homeostasis. Front Pharmacol 2023; 14:1096533. [PMID: 37056986 PMCID: PMC10086243 DOI: 10.3389/fphar.2023.1096533] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Accepted: 03/17/2023] [Indexed: 03/30/2023] Open
Abstract
Background: Ischemic stroke seriously threatens human health because of high rates of morbidity, mortality and disability. This study compared the effects of nicotinamide adenine dinucleotide (NAD+) and butylphthalide (NBP) on in vitro and in vivo ischemic stroke models.Methods: Transient middle cerebral artery occlusion/reperfusion (t-MCAO/R) model was established in mice, and the cultured primary cortical neurons were subjected to oxygen-glucose deprivation/reoxygenation (OGD/R). Cerebral infarct volume, neurobehavioral indices, antioxidant activity, ATP level and lactic acid content were determined. The neuroprotective effects of NAD+ or NBP were compared using sirtuin inhibitor niacinamide (NAM).Results: Intraperitoneal injection of NBP within 4 h or intravenous injection of NAD+ within 1 h after t-MCAO/R significantly reduced the volume of infarcts, cerebral edema, and neurological deficits. Administration of NAD+ and NBP immediately after t-MCAO/R in mice showed similar neuroprotection against acute and long-term ischemic injury. Both NAD+ and NBP significantly inhibited the accumulation of MDA and H2O2 and reduced oxidative stress. NAD+ was superior to NBP in inhibiting lipid oxidation and DNA damage. Furthermore, although both NAD+ and NBP improved the morphology of mitochondrial damage induced by ischemia/reperfusion, NAD+ more effectively reversed the decrease of ATP and increase of lactic acid after ischemia/reperfusion compared with NBP. NAD+ but not NBP treatment significantly upregulated SIRT3 in the brain, but the sirtuin inhibitor NAM could abolish the protective effect of NAD+ and NBP by inhibiting SIRT1 or SIRT3.Conclusions: These results confirmed the protective effects of NAD+ and NBP on cerebral ischemic injury. NBP and NAD+ showed similar antioxidant effects, while NAD+ had better ability in restoring energy metabolism, possibly through upregulating the activity of SIRT1 and SIRT3. The protection provided by NBP against cerebral ischemia/reperfusion may be achieved through SIRT1.
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Affiliation(s)
- Xin-Xin Wang
- Department of Pharmacology and Laboratory of Aging and Nervous Diseases, Jiangsu Key Laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Sciences of Soochow University, Suzhou, China
- Institute of Pediatric Research, Children’s Hospital of Soochow University, Suzhou, China
| | - Guang-Hui Mao
- Department of Pharmacology and Laboratory of Aging and Nervous Diseases, Jiangsu Key Laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Sciences of Soochow University, Suzhou, China
| | - Qi-Qi Li
- Department of Pharmacology and Laboratory of Aging and Nervous Diseases, Jiangsu Key Laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Sciences of Soochow University, Suzhou, China
| | - Jie Tang
- Department of Pharmacology and Laboratory of Aging and Nervous Diseases, Jiangsu Key Laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Sciences of Soochow University, Suzhou, China
| | - Hua Zhang
- Department of Pharmacology and Laboratory of Aging and Nervous Diseases, Jiangsu Key Laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Sciences of Soochow University, Suzhou, China
| | | | - Lei Wang
- Hefei Knature Bio-pharm Co., Ltd., Hefei, China
| | - Hong Ni
- Institute of Pediatric Research, Children’s Hospital of Soochow University, Suzhou, China
| | - Rui Sheng
- Department of Pharmacology and Laboratory of Aging and Nervous Diseases, Jiangsu Key Laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Sciences of Soochow University, Suzhou, China
- *Correspondence: Rui Sheng, ; Zheng-Hong Qin,
| | - Zheng-Hong Qin
- Department of Pharmacology and Laboratory of Aging and Nervous Diseases, Jiangsu Key Laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Sciences of Soochow University, Suzhou, China
- *Correspondence: Rui Sheng, ; Zheng-Hong Qin,
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Briyal S, Ranjan AK, Gulati A. Oxidative stress: A target to treat Alzheimer's disease and stroke. Neurochem Int 2023; 165:105509. [PMID: 36907516 DOI: 10.1016/j.neuint.2023.105509] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 02/01/2023] [Accepted: 03/05/2023] [Indexed: 03/13/2023]
Abstract
Oxidative stress has been established as a well-known pathological condition in several neurovascular diseases. It starts with increased production of highly oxidizing free-radicals (e.g. reactive oxygen species; ROS and reactive nitrogen species; RNS) and becomes too high for the endogenous antioxidant system to neutralize them, which results in a significantly disturbed balance between free-radicals and antioxidants levels and causes cellular damage. A number of studies have evidently shown that oxidative stress plays a critical role in activating multiple cell signaling pathways implicated in both progression as well as initiation of neurological diseases. Therefore, oxidative stress continues to remain a key therapeutic target for neurological diseases. This review discusses the mechanisms involved in reactive oxygen species (ROS) generation in the brain, oxidative stress, and pathogenesis of neurological disorders such as stroke and Alzheimer's disease (AD) and the scope of antioxidant therapies for these disorders.
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Affiliation(s)
- Seema Briyal
- College of Pharmacy, Midwestern University, Downers Grove, IL, 60515, USA.
| | - Amaresh K Ranjan
- College of Pharmacy, Midwestern University, Downers Grove, IL, 60515, USA
| | - Anil Gulati
- College of Pharmacy, Midwestern University, Downers Grove, IL, 60515, USA; Pharmazz Inc. Research and Development, Willowbrook, IL, USA
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Liao Y, Wang JY, Pan Y, Zou X, Wang C, Peng Y, Ao YL, Lam MF, Zhang X, Zhang XQ, Shi L, Zhang S. The Protective Effect of (-)-Tetrahydroalstonine against OGD/R-Induced Neuronal Injury via Autophagy Regulation. Molecules 2023; 28:molecules28052370. [PMID: 36903613 PMCID: PMC10005631 DOI: 10.3390/molecules28052370] [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: 01/03/2023] [Revised: 02/26/2023] [Accepted: 02/28/2023] [Indexed: 03/08/2023] Open
Abstract
Here, (-)-Tetrahydroalstonine (THA) was isolated from Alstonia scholaris and investigated for its neuroprotective effect towards oxygen-glucose deprivation/re-oxygenation (OGD/R)-induced neuronal damage. In this study, primary cortical neurons were pre-treated with THA and then subjected to OGD/R induction. The cell viability was tested by the MTT assay, and the states of the autophagy-lysosomal pathway and Akt/mTOR pathway were monitored by Western blot analysis. The findings suggested that THA administration increased the cell viability of OGD/R-induced cortical neurons. Autophagic activity and lysosomal dysfunction were found at the early stage of OGD/R, which were significantly ameliorated by THA treatment. Meanwhile, the protective effect of THA was significantly reversed by the lysosome inhibitor. Additionally, THA significantly activated the Akt/mTOR pathway, which was suppressed after OGD/R induction. In summary, THA exhibited promising protective effects against OGD/R-induced neuronal injury by autophagy regulation through the Akt/mTOR pathway.
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Affiliation(s)
- Yumei Liao
- Department of Cardiovascular Surgery, The First Affiliated Hospital, Jinan University, Guangzhou 510632, China
- JNU-HKUST Joint Laboratory for Neuroscience and Innovative Drug Research, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Jun-Ya Wang
- Guangdong Provincial Engineering Research Center for Modernization of TCM, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Yan Pan
- JNU-HKUST Joint Laboratory for Neuroscience and Innovative Drug Research, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Xueyi Zou
- JNU-HKUST Joint Laboratory for Neuroscience and Innovative Drug Research, College of Pharmacy, Jinan University, Guangzhou 510632, China
- Guangdong Provincial Engineering Research Center for Modernization of TCM, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Chaoqun Wang
- JNU-HKUST Joint Laboratory for Neuroscience and Innovative Drug Research, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Yinghui Peng
- JNU-HKUST Joint Laboratory for Neuroscience and Innovative Drug Research, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Yun-Lin Ao
- Guangdong Provincial Engineering Research Center for Modernization of TCM, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Mei Fong Lam
- Centro Hospitalar Conde de São Januário, Macau, China
| | - Xiaoshen Zhang
- Department of Cardiovascular Surgery, The First Affiliated Hospital, Jinan University, Guangzhou 510632, China
| | - Xiao-Qi Zhang
- Guangdong Provincial Engineering Research Center for Modernization of TCM, College of Pharmacy, Jinan University, Guangzhou 510632, China
- NMPA Key Laboratory for Quality Evaluation of TCM, Jinan University, Guangzhou 510632, China
- Correspondence: (X.-Q.Z.); (S.Z.)
| | - Lei Shi
- Department of Cardiovascular Surgery, The First Affiliated Hospital, Jinan University, Guangzhou 510632, China
- JNU-HKUST Joint Laboratory for Neuroscience and Innovative Drug Research, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Shiqing Zhang
- JNU-HKUST Joint Laboratory for Neuroscience and Innovative Drug Research, College of Pharmacy, Jinan University, Guangzhou 510632, China
- Correspondence: (X.-Q.Z.); (S.Z.)
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50
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Kalinichenko SG, Pushchin II, Matveeva NY. Neurotoxic and cytoprotective mechanisms in the ischemic neocortex. J Chem Neuroanat 2023; 128:102230. [PMID: 36603664 DOI: 10.1016/j.jchemneu.2022.102230] [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: 09/19/2022] [Revised: 12/30/2022] [Accepted: 12/30/2022] [Indexed: 01/03/2023]
Abstract
Neuronal damage in ischemic stroke occurs due to permanent imbalance between the metabolic needs of the brain and the ability of the blood-vascular system to maintain glucose delivery and adequate gas exchange. Oxidative stress and excitotoxicity trigger complex processes of neuroinflammation, necrosis, and apoptosis of both neurons and glial cells. This review summarizes data on the structural and chemical changes in the neocortex and main cytoprotective effects induced by focal ischemic stroke. We focus on the expression of neurotrophins (NT) and molecular and cellular changes in neurovascular units in ischemic brain. We also discuss how these factors affect the apoptosis of cortical cells. Ischemic damage involves close interaction of a wide range of signaling molecules, each acting as an efficient marker of cell state in both the ischemic core and penumbra. NTs play the main regulatory role in brain tissue recovery after ischemic injury. Heterogeneous distribution of the BDNF, NT-3, and GDNF immunoreactivity is concordant with the selective response of different types of cortical neurons and glia to ischemic injury and allows mapping the position of viable neurons. Astrocytes are the central link in neurovascular coupling in ischemic brain by providing other cells with a wide range of vasotropic factors. The NT expression coincides with the distribution of reactive astrocytes, marking the boundaries of the penumbra. The development of ischemic stroke is accompanied by a dramatic change in the distribution of GDNF reactivity. In early ischemic period, it is mainly observed in cortical neurons, while in late one, the bulk of GDNF-positive cells are various types of glia, in particular, astrocytes. The proportion of GDNF-positive astrocytes increases gradually throughout the ischemic period. Some factors that exert cytoprotective effects in early ischemic period may display neurotoxic and pro-apoptotic effects later on. The number of apoptotic cells in the ischemic brain tissue correlates with the BDNF levels, corroborating its protective effects. Cytoprotection and neuroplasticity are two lines of brain protection and recovery after ischemic stroke. NTs can be considered an important link in these processes. To develop efficient pharmacological therapy for ischemic brain injury, we have to deepen our understanding of neurochemical adaptation of brain tissue to acute stroke.
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Affiliation(s)
- Sergei G Kalinichenko
- Department of Histology, Cytology, and Embryology, Pacific State Medical University, Vladivostok 690950, Russia
| | - Igor I Pushchin
- Laboratory of Physiology, A.V. Zhirmusky National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences, Vladivostok 690041, Russia.
| | - Natalya Yu Matveeva
- Department of Histology, Cytology, and Embryology, Pacific State Medical University, Vladivostok 690950, Russia
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