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Yan W, Wang C, Zhao Y, Jiang Y, Sun M. Involvement of Calpain in Neurovascular Unit Damage through Up-regulating PARP-NF-κB Signaling during Experimental Ischemic Stroke. Mol Neurobiol 2024:10.1007/s12035-024-04092-w. [PMID: 38472651 DOI: 10.1007/s12035-024-04092-w] [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: 09/25/2023] [Accepted: 03/03/2024] [Indexed: 03/14/2024]
Abstract
Calpain and PARP-NF-κB signaling are reported to participate in the ischemic brain injury. In this study, it was investigated whether calpain was contributed to the neurovascular unit (NVU) damage through up-regulating PARP-NF-κB signaling during experimental ischemic stroke. Male Sprague-Dawley rats were suffered from 90 min of middle cerebral artery occlusion, followed by reperfusion. The NVU damage was evaluated by the permeability of blood-brain barrier (BBB), the degradation of proteins in extracellular matrix and tight junctions, and ultrastructural changes. The inflammatory response was determined by the expression of inflammatory genes driven by PARP-NF-κB signaling and the activities of myeloperoxidase (MPO). Treatment with MDL 28,170, a calpain inhibitor, improved neurological functions, reduced TUNEL staining index, lessened brain swelling, and decreased infarct volume in ischemic rats. Moreover, it reduced the BBB permeability, enhanced the levels of laminin, collagen IV and occludin, and attenuated the ultrastructural damage of NVU in penumbra and core after induction of ischemia. Meanwhile, it enhanced the levels of cytosolic IκBα, lessened the levels of nuclear PARP and NF-κB p65, reduced the levels of ICAM-1, TNF-α, IL-1β, MMP-9, and MMP-2,and suppressed the activities of MPO in penumbra and core. These data showed that calpain inhibition suppressed PARP-NF-κB signaling-mediated inflammatory response, reduced NVU damage, and protected brain against ischemic stroke, suggesting the involvement of calpain in the NVU damage through up-regulating PARP-NF-κB signaling during brain ischemia.
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Affiliation(s)
- Wenhao Yan
- Department of Pediatrics, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China
| | - Chunyang Wang
- Department of Neuropharmacology, Beijing Key Laboratory of Central Nervous System Injury, Beijing Neurosurgical Institute, Capital Medical University, 119 South Fourth Ring West Road, Fengtai District, Beijing, 100070, China
| | - Yumei Zhao
- Department of Neuropharmacology, Beijing Key Laboratory of Central Nervous System Injury, Beijing Neurosurgical Institute, Capital Medical University, 119 South Fourth Ring West Road, Fengtai District, Beijing, 100070, China
| | - Yingying Jiang
- Department of Neuropharmacology, Beijing Key Laboratory of Central Nervous System Injury, Beijing Neurosurgical Institute, Capital Medical University, 119 South Fourth Ring West Road, Fengtai District, Beijing, 100070, China
| | - Ming Sun
- Department of Neuropharmacology, Beijing Key Laboratory of Central Nervous System Injury, Beijing Neurosurgical Institute, Capital Medical University, 119 South Fourth Ring West Road, Fengtai District, Beijing, 100070, China.
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Li H, Bu L, Sun X, Chu X, Xue Y, Zhang M, Shi J, Liu Y, Guan S, Han X, Wang H. Mechanistic investigation of the ameliorative effect of liquiritin on hypoxia/reoxygenation‑induced cardiomyocyte injury based on network pharmacology and in vitro validation. Exp Ther Med 2024; 27:117. [PMID: 38361515 PMCID: PMC10867724 DOI: 10.3892/etm.2024.12405] [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: 09/10/2023] [Accepted: 12/18/2023] [Indexed: 02/17/2024] Open
Abstract
Liquiritin (LIQ) is a flavonoid known for its cardioprotective properties, extracted from Glycyrrhiza uralensis Fisch. The purpose of the present study was to investigate the protective mechanism of LIQ against hypoxia/reoxygenation (H/R) injury through in vitro experiments, with the goal of enhancing its pharmacological effects. Initially, network pharmacology was employed to explore the targets and mechanisms of LIQ. Subsequently, an in vitro H/R model was established using H9c2 cells. Potential targets for LIQ and myocardial ischemia-reperfusion injury (MIRI) were identified through online databases. The STRING, Cytoscape and DAVID databases were used to extract intersecting targets and mechanisms. In vitro experiments were conducted to validate these findings, assessing cardiac enzymes, oxidative stress indicators, mitochondrial fluorescence, apoptotic fluorescence, inflammation and related protein expression. The network pharmacological analysis revealed that the protective effects of LIQ on MIRI involve oxidative stress, inflammation and apoptosis. The results of in vitro experimental validation demonstrated that LIQ significantly reduced the activities of lactated dehydrogenase and creatine kinase isoenzyme-MB (P<0.05 or 0.01), as well as the level of malondialdehyde (P<0.01). It also inhibited the production of reactive oxygen species (P<0.01), the release of inflammatory factors (P<0.05 or 0.01) and apoptosis (P<0.01). By contrast, the LIQ pre-treatment group exhibited a significant increase in mitochondrial membrane potential level (P<0.05 or 0.01) and the activities of antioxidant enzymes superoxide dismutase, catalase and glutathione peroxidase (P<0.05 or 0.01). Furthermore, LIQ reduced the protein expressions of TNF-α receptor type 1 (TNFR1) and MMP9, along with the level of NF-κB phosphorylation (P<0.05 or 0.01). In conclusion, LIQ mitigated H/R-induced cardiomyocyte injury through mechanisms that may involve antioxidants, anti-apoptotic effects, protection against mitochondrial damage and suppression of inflammatory levels. These effects are achieved via inhibition of the TNFR1/NF-κB/MMP9 pathway.
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Affiliation(s)
- Haoying Li
- School of Pharmacy, Hebei University of Chinese Medicine, Shijiazhuang, Hebei 050200, P.R. China
| | - Linlin Bu
- School of Pharmacy, Hebei University of Chinese Medicine, Shijiazhuang, Hebei 050200, P.R. China
| | - Xiaoqi Sun
- School of Pharmacy, Hebei University of Chinese Medicine, Shijiazhuang, Hebei 050200, P.R. China
| | - Xi Chu
- Department of Pharmacy, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050011, P.R. China
| | - Yucong Xue
- School of Pharmacy, Hebei University of Chinese Medicine, Shijiazhuang, Hebei 050200, P.R. China
| | - Muqing Zhang
- Affiliated Hospital, Hebei University of Chinese Medicine, Shijiazhuang, Hebei 050000, P.R. China
| | - Jing Shi
- Department of Pharmacy, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050011, P.R. China
| | - Yanshuang Liu
- College of Integrative Medicine, Hebei University of Chinese Medicine, Shijiazhuang, Hebei 050200, P.R. China
- College of Integrative Medicine, Hebei Medical University, Shijiazhuang, Hebei 050000, P.R. China
| | - Shengjiang Guan
- Affiliated Hospital, Hebei University of Chinese Medicine, Shijiazhuang, Hebei 050000, P.R. China
| | - Xue Han
- School of Pharmacy, Hebei University of Chinese Medicine, Shijiazhuang, Hebei 050200, P.R. China
| | - Hongfang Wang
- School of Pharmacy, Hebei University of Chinese Medicine, Shijiazhuang, Hebei 050200, P.R. China
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Tonti E, Dell'Omo R, Filippelli M, Spadea L, Salati C, Gagliano C, Musa M, Zeppieri M. Exploring Epigenetic Modifications as Potential Biomarkers and Therapeutic Targets in Glaucoma. Int J Mol Sci 2024; 25:2822. [PMID: 38474069 DOI: 10.3390/ijms25052822] [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: 02/07/2024] [Revised: 02/23/2024] [Accepted: 02/27/2024] [Indexed: 03/14/2024] Open
Abstract
Glaucoma, a complex and multifactorial neurodegenerative disorder, is a leading cause of irreversible blindness worldwide. Despite significant advancements in our understanding of its pathogenesis and management, early diagnosis and effective treatment of glaucoma remain major clinical challenges. Epigenetic modifications, encompassing deoxyribonucleic acid (DNA) methylation, histone modifications, and non-coding RNAs, have emerged as critical regulators of gene expression and cellular processes. The aim of this comprehensive review focuses on the emerging field of epigenetics and its role in understanding the complex genetic and molecular mechanisms underlying glaucoma. The review will provide an overview of the pathophysiology of glaucoma, emphasizing the intricacies of intraocular pressure regulation, retinal ganglion cell dysfunction, and optic nerve damage. It explores how epigenetic modifications, such as DNA methylation and histone modifications, can influence gene expression, and how these mechanisms are implicated in glaucomatous neurodegeneration and contribute to glaucoma pathogenesis. The manuscript discusses evidence from both animal models and human studies, providing insights into the epigenetic alterations associated with glaucoma onset and progression. Additionally, it discusses the potential of using epigenetic modifications as diagnostic biomarkers and therapeutic targets for more personalized and targeted glaucoma treatment.
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Affiliation(s)
- Emanuele Tonti
- Eye Clinic, Policlinico Umberto I University Hospital, 00142 Rome, Italy
| | - Roberto Dell'Omo
- Department of Medicine and Health Sciences "Vincenzo Tiberio", University of Molise, Via Francesco De Sanctis 1, 86100 Campobasso, Italy
| | - Mariaelena Filippelli
- Department of Medicine and Health Sciences "Vincenzo Tiberio", University of Molise, Via Francesco De Sanctis 1, 86100 Campobasso, Italy
| | - Leopoldo Spadea
- Eye Clinic, Policlinico Umberto I University Hospital, 00142 Rome, Italy
| | - Carlo Salati
- Department of Ophthalmology, University Hospital of Udine, 33100 Udine, Italy
| | - Caterina Gagliano
- Faculty of Medicine and Surgery, University of Enna "Kore", Piazza dell'Università, 94100 Enna, Italy
- Eye Clinic, Catania University, San Marco Hospital, Viale Carlo Azeglio Ciampi, 95121 Catania, Italy
| | - Mutali Musa
- Department of Optometry, University of Benin, Benin City 300238, Nigeria
| | - Marco Zeppieri
- Department of Ophthalmology, University Hospital of Udine, 33100 Udine, Italy
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Han F. N6-methyladenosine modification in ischemic stroke: Functions, regulation, and therapeutic potential. Heliyon 2024; 10:e25192. [PMID: 38317953 PMCID: PMC10840115 DOI: 10.1016/j.heliyon.2024.e25192] [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: 06/29/2023] [Revised: 12/09/2023] [Accepted: 01/22/2024] [Indexed: 02/07/2024] Open
Abstract
N6-methyladenosine (m6A) modification is the most frequently occurring internal modification in eukaryotic RNAs. By modulating various aspects of the RNA life cycle, it has been implicated in a wide range of pathological and physiological processes associated with human diseases. Ischemic stroke is a major cause of death and disability worldwide with few treatment options and a narrow therapeutic window, and accumulating evidence has indicated the involvement of m6A modifications in the development and progression of this type of stroke. In this review, which provides insights for the prevention and clinical treatment of stroke, we present an overview of the roles played by m6A modification in ischemic stroke from three main perspectives: (1) the association of m6A modification with established risk factors for stroke, including hypertension, diabetes mellitus, hyperlipidemia, obesity, and heart disease; (2) the roles of m6A modification regulators and their functional regulation in the pathophysiological injury mechanisms of stroke, namely oxidative stress, mitochondrial dysfunction, endothelial dysfunction, neuroinflammation, and cell death processes; and (3) the diagnostic and therapeutic potential of m6A regulators in the treatment of stroke.
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Affiliation(s)
- Fei Han
- Department of Neurology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, 100730, China
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Zhang L, Zhou X, Zhao J, Wang X. Research hotspots and frontiers of preconditioning in cerebral ischemia: A bibliometric analysis. Heliyon 2024; 10:e24757. [PMID: 38317957 PMCID: PMC10839892 DOI: 10.1016/j.heliyon.2024.e24757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 12/13/2023] [Accepted: 01/12/2024] [Indexed: 02/07/2024] Open
Abstract
Background Preconditioning is a promising strategy against ischemic brain injury, and numerous studies in vitro and in vivo have demonstrated its neuroprotective effects. However, at present there is no bibliometric analysis of preconditioning in cerebral ischemia. Therefore, a comprehensive overview of the current status, hot spots, and emerging trends in this research field is necessary. Materials and methods Studies on preconditioning in cerebral ischemia from January 1999-December 2022 were retrieved from the Web of Science Core Collection (WOSCC) database. CiteSpace was used for data mining and visual analysis. Results A total of 1738 papers on preconditioning in cerebral ischemia were included in the study. The annual publications showed an upwards and then downwards trend but currently remain high in terms of annual publications. The US was the leading country, followed by China, the most active country in recent years. Capital Medical University published the largest number of articles. Perez-Pinzon, Miguel A contributed the most publications, while KITAGAWA K was the most cited author. The focus of the study covered three areas: (1) relevant diseases and experimental models, (2) types of preconditioning and stimuli, and (3) mechanisms of ischemic tolerance. Remote ischemic preconditioning, preconditioning of mesenchymal stem cells (MSCs), and inflammation are the frontiers of research in this field. Conclusion Our study provides a visual and scientific overview of research on preconditioning in cerebral ischemia, providing valuable information and new directions for researchers.
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Affiliation(s)
- Long Zhang
- First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
- Department of Traditional Chinese Medicine, Zibo TCM-Integrated Hospital, Zibo ,255026, China
| | - Xue Zhou
- First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Jing Zhao
- First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
- Experimental Center, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Xingchen Wang
- Division of Neurology, The Second Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, 250001, China
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Liu T, Wang W, Li X, Chen Y, Mu F, Wen A, Liu M, Ding Y. Advances of phytotherapy in ischemic stroke targeting PI3K/Akt signaling. Phytother Res 2023; 37:5509-5528. [PMID: 37641491 DOI: 10.1002/ptr.7994] [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: 03/24/2023] [Revised: 07/29/2023] [Accepted: 08/15/2023] [Indexed: 08/31/2023]
Abstract
The pathogenesis of ischemic stroke is complex, and PI3K/Akt signaling is considered to play a crucial role in it. The PI3K/Akt pathway regulates inflammation, oxidative stress, apoptosis, autophagy, and vascular endothelial homeostasis after cerebral ischemia; therefore, drug research targeting the PI3K/Akt pathway has become the focus of scientists. In this review, we analyzed the research reports of antiischemic stroke drugs targeting the PI3K/Akt pathway in the past two decades. Because of the rich sources of natural products, increasing studies have explored the value of natural compounds, including Flavonoids, Quinones, Alkaloids, Phenylpropanoids, Phenols, Saponins, and Terpenoids, in alleviating neurological impairment and achieved satisfactory results. Herbal extracts and medicinal formulas have been applied in the treatment of ischemic stroke for thousands of years in East Asian countries. These precious clinical experiences provide a new avenue for research of antiischemic stroke drugs. Finally, we summarize and discuss the characteristics and shortcomings of the current research and put forward prospects for further in-depth exploration.
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Affiliation(s)
- Tianlong Liu
- Department of Pharmacy, The 940th Hospital Joint Logistics Support Forces of PLA, Lanzhou, China
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Wenjun Wang
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xiaolin Li
- Department of Pharmacy, The 940th Hospital Joint Logistics Support Forces of PLA, Lanzhou, China
| | - Yidan Chen
- Department of Pharmacy, The 940th Hospital Joint Logistics Support Forces of PLA, Lanzhou, China
| | - Fei Mu
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Aidong Wen
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Minna Liu
- Department of Nephrology, The 940th Hospital Joint Logistics Support Forces of PLA, Lanzhou, China
| | - Yi Ding
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xi'an, China
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Cui S, Ke L, Wang H, Li L. TSG-6 alleviates cerebral ischemia/reperfusion injury and blood-brain barrier disruption by suppressing ER stress-mediated inflammation. Brain Res 2023; 1817:148466. [PMID: 37336316 DOI: 10.1016/j.brainres.2023.148466] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 06/09/2023] [Accepted: 06/14/2023] [Indexed: 06/21/2023]
Abstract
Tumor necrosis factor-stimulated gene-6 (TSG-6) exhibits promising neuroprotective activity, but how it influences cerebral ischemia/reperfusion (CIR) injury remains to be established. Here, the impact of TSG-6 on the CIR-induced disturbance in the blood-brain barrier (BBB) and associated neurological degeneration was assessed, and the related molecular processes were explored. In this study, TSG-6 markedly reduced CIR-mediated increases in neurological deficit scores, decreased infarct volume, and protected against the apoptotic death of neurons in MCAO/R model rats. Similarly, TSG-6 pretreatment protected cultured neurons against OGD/R-associated neuronal death. TSG-6 also restored BBB integrity, suppressing PERK-eIF2α and IRE1α-TRAF2 pathway activation in CIR model systems, thereby inhibiting NF-κB, TNF-α, IL-1β, and IL-6. The further use of specific inhibitors of ER stress, 4-phenyl butyric acid (4-PBA), PERK (GSK2656157), and IRE1α (STF083010) demonstrated the ability of ER stress to drive inflammatory activity in the context of CIR injury i the PERK-eIF2α-NF-κB and IRE1α-TRAF2-NF-κB pathways. Consistently, the activation of ER stress using tunicamycin resulted in reversing the beneficial effects of TSG-6 on CIR-associated BBB disruption and neurological damage in vitro and in vivo. Treatment with TSG-6 can protect against CIR injury via the inhibition of ER stress-related inflammatory activity induced through the PERK-eIF2α-NF-κB and IRE1α-TRAF2-NF-κB pathways.
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Affiliation(s)
- Shengwei Cui
- Department of Neurology, The First Affiliated Hospital of Anhui University of Traditional Chinese Medicine, Hefei 230031, China; Department of Neurology, Graduate School of Anhui University of Traditional Chinese Medicine, Anhui, Hefei 230038, China
| | - Li Ke
- Department of Thoracic Surgery, the First Affiliated Hospital of University of Science and Technology of China (Anhui Provincial Hospital), Lujiang Road 17, Hefei 230001, China.
| | - Han Wang
- Department of Neurology, The First Affiliated Hospital of Anhui University of Traditional Chinese Medicine, Hefei 230031, China.
| | - Liangyong Li
- Department of Neurology, The First Affiliated Hospital of Anhui University of Traditional Chinese Medicine, Hefei 230031, China.
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Lin J, Zheng Y, Zhao N, Cui F, Wu S. Herpesvirus latent infection promotes stroke via activating the OTUD1/NF-κB signaling pathway. Aging (Albany NY) 2023; 15:8976-8992. [PMID: 37695739 PMCID: PMC10522389 DOI: 10.18632/aging.205011] [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: 05/18/2023] [Accepted: 08/21/2023] [Indexed: 09/13/2023]
Abstract
OBJECTIVE Our study aimed to reveal the molecular mechanisms underlying the regulation of cerebral infarction by herpes virus latency infection via the OTUD1/NF-κB signaling pathway using evidence-based medicine Meta-analysis and bioinformatics analysis. METHODS We conducted a Meta-analysis by searching Pubmed, Embase, and Web of Science databases to evaluate the correlation between herpes virus infection and increased risk of cerebral infarction. We obtained wild-type or mutant herpes virus latent infection-related brain tissue datasets from the GEO database and performed differential analysis to identify differentially expressed genes (DEGs) in the brain tissue after herpes virus latent infection. We further conducted WGCNA co-expression analysis on the cerebral infarction-related datasets from the GEO database to obtain key module genes and intersect them with the DEGs. We used ROC curve analysis to identify the key gene OTUD1 for predicting the occurrence of cerebral infarction and combined correlation and pathway enrichment analyses to identify the downstream pathways regulated by OTUD1. RESULTS Our meta-analysis revealed that herpes virus infection is associated with an increased risk of cerebral infarction. By integrating the differential analysis and WGCNA co-expression analysis of GEO chip data, we identified three key genes mediating cerebral infarction after herpes virus latent infection. ROC curve analysis identified the key gene OTUD1, and the correlation and pathway enrichment analyses showed that OTUD1 regulates the NF-κB signaling pathway to mediate cerebral infarction. CONCLUSION Herpes virus latent infection promotes cerebral infarction by activating the OTUD1/NF-κB signaling pathway.
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Affiliation(s)
- Jiacai Lin
- Department of Neurology, Hainan Hospital of Chinese PLA General Hospital, Sanya 572013, China
| | - Yangrui Zheng
- Department of Neurosurgery, Hainan Hospital of Chinese PLA General Hospital, Sanya 572013, China
| | - Ning Zhao
- Department of Neurology, Hainan Hospital of Chinese PLA General Hospital, Sanya 572013, China
| | - Fang Cui
- Department of Neurology, Hainan Hospital of Chinese PLA General Hospital, Sanya 572013, China
| | - Siting Wu
- Department of Neurology, Hainan Hospital of Chinese PLA General Hospital, Sanya 572013, China
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Tian Y, Milic J, Monasor LS, Chakraborty R, Wang S, Yuan Y, Asare Y, Behrends C, Tahirovic S, Bernhagen J. The COP9 signalosome reduces neuroinflammation and attenuates ischemic neuronal stress in organotypic brain slice culture model. Cell Mol Life Sci 2023; 80:262. [PMID: 37597109 PMCID: PMC10439869 DOI: 10.1007/s00018-023-04911-8] [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: 04/24/2023] [Revised: 07/06/2023] [Accepted: 08/04/2023] [Indexed: 08/21/2023]
Abstract
The constitutive photomorphogenesis 9 (COP9) signalosome (CSN) is a deNEDDylase controlling ubiquitination activity of cullin-RING-E3 ligases (CRLs) and thus the levels of key cellular proteins. While the CSN and its catalytic subunit CSN5 have been extensively studied in cancer, its role in inflammatory and neurological diseases is less understood. Following verification that CSN5 is expressed in mouse and human brain, here we studied the role of the CSN in neuroinflammation and ischemic neuronal damage employing models of relevant brain-resident cell types, an ex vivo organotypic brain slice culture model, and the CRL NEDDylation state-modifying drugs MLN4924 and CSN5i-3, which mimic and inhibit, respectively, CSN5 deNEDDylase activity. Untargeted mass spectrometry-based proteomics revealed that MLN4924 and CSN5i-3 substantially alter the microglial proteome, including inflammation-related proteins. Applying these drugs and mimicking microglial and endothelial inflammation as well as ischemic neuronal stress by TNF and oxygen-glucose-deprivation/reoxygenation (OGD/RO) treatment, respectively, we could link CSN5/CSN-mediated cullin deNEDDylation to reduction of microglial inflammation, attenuated cerebral endothelial inflammation, improved barrier integrity, as well as protection from ischemic stress-induced neuronal cell death. Specifically, MLN4924 reduced phagocytic activity, motility, and inflammatory cytokine expression of microglial cells, and this was linked to inhibition of inflammation-induced NF-κB and Akt signaling. Inversely, Csn5 knockdown and CSN5i-3 increased NF-κB signaling. Moreover, MLN4924 abrogated TNF-induced NF-κB signaling in cerebral microvascular endothelial cells (hCMECs) and rescued hCMEC monolayers from OGD/RO-triggered barrier leakage, while CSN5i-3 exacerbated permeability. In an ex vivo organotypic brain slice model of ischemia/reperfusion stress, MLN4924 protected from neuronal death, while CSN5i-3 impaired neuronal survival. Neuronal damage was attributable to microglial activation and inflammatory cytokines, as indicated by microglial shape tracking and TNF-blocking experiments. Our results indicate a protective role of the CSN in neuroinflammation via brain-resident cell types involved in ischemic brain disease and implicate CSN activity-mimicking deNEDDylating drugs as potential therapeutics.
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Affiliation(s)
- Yuan Tian
- Vascular Biology, Institute for Stroke and Dementia Research (ISD), LMU Klinikum, Ludwig-Maximilian-University (LMU) Munich, Feodor-Lynen-Straße 17, 81377, Munich, Germany
- Centre for Clinical Brain Sciences, The University of Edinburgh, Edinburgh, UK
| | - Jelena Milic
- Vascular Biology, Institute for Stroke and Dementia Research (ISD), LMU Klinikum, Ludwig-Maximilian-University (LMU) Munich, Feodor-Lynen-Straße 17, 81377, Munich, Germany
| | | | - Rahul Chakraborty
- Munich Cluster for Systems Neurology (SyNergy), Medical Faculty, LMU Munich, 81377, Munich, Germany
| | - Sijia Wang
- Vascular Biology, Institute for Stroke and Dementia Research (ISD), LMU Klinikum, Ludwig-Maximilian-University (LMU) Munich, Feodor-Lynen-Straße 17, 81377, Munich, Germany
- Shenzhen People's Hospital, Shenzhen, Guangdong Province, China
| | - Yue Yuan
- Vascular Biology, Institute for Stroke and Dementia Research (ISD), LMU Klinikum, Ludwig-Maximilian-University (LMU) Munich, Feodor-Lynen-Straße 17, 81377, Munich, Germany
| | - Yaw Asare
- Translational Stroke Research, Institute for Stroke and Dementia Research (ISD), LMU Klinikum, LMU Munich, 81377, Munich, Germany
| | - Christian Behrends
- Munich Cluster for Systems Neurology (SyNergy), Medical Faculty, LMU Munich, 81377, Munich, Germany
| | - Sabina Tahirovic
- German Center for Neurodegenerative Diseases (DZNE), 81377, Munich, Germany
| | - Jürgen Bernhagen
- Vascular Biology, Institute for Stroke and Dementia Research (ISD), LMU Klinikum, Ludwig-Maximilian-University (LMU) Munich, Feodor-Lynen-Straße 17, 81377, Munich, Germany.
- Munich Cluster for Systems Neurology (SyNergy), Medical Faculty, LMU Munich, 81377, Munich, Germany.
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Howell JA, Gaouette N, Lopez M, Burke SP, Perkins E, Bidwell GL. Elastin-like polypeptide delivery of anti-inflammatory peptides to the brain following ischemic stroke. FASEB J 2023; 37:e23077. [PMID: 37402128 PMCID: PMC10349587 DOI: 10.1096/fj.202300309rr] [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: 03/07/2023] [Revised: 06/15/2023] [Accepted: 06/22/2023] [Indexed: 07/05/2023]
Abstract
Inflammatory processes are activated following ischemic stroke that lead to increased tissue damage for weeks following the ischemic insult, but there are no approved therapies that target this inflammation-induced secondary injury. Here, we report that SynB1-ELP-p50i, a novel protein inhibitor of the nuclear factor kappa B (NF-κB) inflammatory cascade bound to the drug carrier elastin-like polypeptide (ELP), decreases NF-κB induced inflammatory cytokine production in cultured macrophages, crosses the plasma membrane and accumulates in the cytoplasm of both neurons and microglia in vitro, and accumulates at the infarct site where the blood-brain barrier (BBB) is compromised following middle cerebral artery occlusion (MCAO) in rats. Additionally, SynB1-ELP-p50i treatment reduces infarct volume by 11.86% compared to saline-treated controls 24 h following MCAO. Longitudinally, SynB1-ELP-p50i treatment improves survival for 14 days following stroke with no effects of toxicity or peripheral organ dysfunction. These results show high potential for ELP-delivered biologics for therapy of ischemic stroke and other central nervous system disorders and further support targeting inflammation in ischemic stroke.
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Affiliation(s)
- John Aaron Howell
- Graduate Program in Neuroscience, University of Mississippi Medical Center, Jackson, MS 39216
- Department of Neurology, University of Mississippi Medical Center, Jackson, MS 39216
| | - Nicholas Gaouette
- School of Medicine, University of Mississippi Medical Center, Jackson, MS 39216
| | - Mariper Lopez
- Department of Neurology, University of Mississippi Medical Center, Jackson, MS 39216
| | - Stephen P. Burke
- Department of Neurology, University of Mississippi Medical Center, Jackson, MS 39216
| | - Eddie Perkins
- Department of Neurosurgery, University of Mississippi Medical Center, Jackson, MS 39216
| | - Gene L. Bidwell
- Department of Neurology, University of Mississippi Medical Center, Jackson, MS 39216
- Department of Cell and Molecular Biology, University of Mississippi Medical Center, Jackson, MS 39216
- Department of Pharmacology and Toxicology University of Mississippi Medical Center, Jackson, MS 39216
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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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12
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Jing Y, Zhang L, Chen SW, Guo Y, Ju SM, Yuan F, Chen H, Yang DX, Tian HL, Xu ZM, Ding J. Inhibiting phosphatase and actin regulator 1 expression is neuroprotective in the context of traumatic brain injury. Neural Regen Res 2023; 18:1578-1583. [PMID: 36571365 PMCID: PMC10075113 DOI: 10.4103/1673-5374.357904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Studies have found that the phosphatase actin regulatory factor 1 expression can be related to stroke, but it remains unclear whether changes in phosphatase actin regulatory factor 1 expression also play a role in traumatic brain injury. In this study we found that, in a mouse model of traumatic brain injury induced by controlled cortical impact, phosphatase actin regulatory factor 1 expression is increased in endothelial cells, neurons, astrocytes, and microglia. When we overexpressed phosphatase actin regulatory factor 1 by injection an adeno-associated virus vector into the contused area in the traumatic brain injury mice, the water content of the brain tissue increased. However, when phosphatase actin regulatory factor 1 was knocked down, the water content decreased. We also found that inhibiting phosphatase actin regulatory factor 1 expression regulated the nuclear factor kappa B signaling pathway, decreased blood-brain barrier permeability, reduced aquaporin 4 and intercellular adhesion molecule 1 expression, inhibited neuroinflammation, and neuronal apoptosis, thereby improving neurological function. The findings from this study indicate that phosphatase actin regulatory factor 1 may be a potential therapeutic target for traumatic brain injury.
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Affiliation(s)
- Yao Jing
- Department of Neurosurgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lin Zhang
- Department of Neurosurgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Shi-Wen Chen
- Department of Neurosurgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yan Guo
- Department of Neurosurgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Shi-Ming Ju
- Department of Neurosurgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Fang Yuan
- Department of Neurosurgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hao Chen
- Department of Neurosurgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Dian-Xu Yang
- Department of Neurosurgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Heng-Li Tian
- Department of Neurosurgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhi-Ming Xu
- Department of Neurosurgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jun Ding
- Department of Neurosurgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
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13
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Zhou L, Song X, Wang J, Tan Y, Yang Q. Effects of vitamin B 12 deficiency on risk and outcome of ischemic stroke. Clin Biochem 2023; 118:110591. [PMID: 37247800 DOI: 10.1016/j.clinbiochem.2023.110591] [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: 02/09/2023] [Revised: 05/23/2023] [Accepted: 05/24/2023] [Indexed: 05/31/2023]
Abstract
Ischemic stroke is the most prevalent form of stroke and has a high incidence in older adults, characterized by high morbidity, mortality, disability, and recurrence rate. Vitamin B12 deficiency is prevalent in the elderly and has been reported to be associated with ischemic stroke. The mechanisms maybe include the disorder of methylation metabolism, accumulation of toxic metabolites, immune dysfunction, affecting gut microbial composition and gut-brain immune homeostasis, and toxic stress responses to the brain. Vitamin B12 deficiency may lead to cerebral artery atherosclerosis, change myelination, influence the metabolism and transmission between nerve tissue, and ultimately causes the occurrence and development of ischemic stroke. This paper reviews the correlation between vitamin B12 deficiency and ischemic stroke, looking forward to improving clinicians' understanding and providing new therapeutic directions for ischemic stroke.
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Affiliation(s)
- Li Zhou
- Department of Neurology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Xiaosong Song
- Department of Neurology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China; Department of Neurology, the Ninth People's Hospital of Chongqing, Chongqing, China
| | - Jiani Wang
- Department of Neurology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Yongjun Tan
- Department of Neurology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Qin Yang
- Department of Neurology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
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14
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Nguyen HD, Kim MS. In silico identification of molecular mechanisms for stroke risk caused by heavy metals and their mixtures: sponges and drugs involved. Neurotoxicology 2023; 96:222-239. [PMID: 37121440 DOI: 10.1016/j.neuro.2023.04.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 03/14/2023] [Accepted: 04/26/2023] [Indexed: 05/02/2023]
Abstract
This study used various approaches and databases to evaluate the molecular processes and identify miRNA sponges and drugs associated with the development of stroke caused by heavy metals and their combinations. We found that the genes ALB (albumin), IL1B (Interleukin-1β), F2 (coagulation factor II), APOA1 (apolipoprotein A1), IL6 (Interleukin 6), and NOS2 (nitric oxide synthase 2) were linked to the development of strokes by 18 chemicals and a combination of cadmium, copper, and lead. These results may point to the significance of detoxification and neuroinflammation in stroke as well as the potential for targeting these genes in future stroke therapies. ALB and IL1B were the most common and significant genes. The "selenium micronutrient network," "vitamin B12 metabolism," and "folate metabolism" were shown to be the most significant pathways connected to the risk of stroke brought on by combined heavy metals. The two main cellular elements that may increase the risk of stroke caused by heavy metals were discovered to be "blood microparticle" and "endoplasmic reticulum lumen." We also observed an important chromosome (chr7p15.3), two transcription factors (NFKB2 [nuclear factor kappa B subunit 2] and NR1I2 [nuclear receptor subfamily 1 group, member 2]), and four microRNAs (hsa-miR-26a-5p, hsa-miR-9-5p, hsa-miR-124-3p, and hsa-miR-155-5p) associated with stroke caused by combined heavy metals. Additionally, for these miRNAs, we created and examined in silico microRNA sponge sequences. Triflusal and andrographolide have been identified as potential treatments for heavy metal-induced stroke. Taken together, heavy metals may be a significant contributor to the pathophysiology of stroke, but further investigation into the precise molecular pathways implicated in stroke pathophysiology is required to corroborate these findings.
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Affiliation(s)
- Hai Duc Nguyen
- Department of Pharmacy, College of Pharmacy and Research Institute of Life and Pharmaceutical Sciences, Sunchon National University, Suncheon 57922, Republic of Korea.
| | - Min-Sun Kim
- Department of Pharmacy, College of Pharmacy and Research Institute of Life and Pharmaceutical Sciences, Sunchon National University, Suncheon 57922, Republic of Korea.
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15
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Zhou Z, Dun L, Yang Q, Tao J, Yu P, Xu H, Zhao N, Zheng N, An H, Yi P. Tongqiao Huoxue decoction alleviates neurological impairment following ischemic stroke via the PTGS2/NF-kappa B axis. Brain Res 2023; 1805:148247. [PMID: 36669713 DOI: 10.1016/j.brainres.2023.148247] [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: 09/21/2022] [Revised: 01/04/2023] [Accepted: 01/13/2023] [Indexed: 01/19/2023]
Abstract
Traditional Chinese medicine has emerged as promising targets for ischemic stroke (IS) therapy, yet the mechanism remains elusive. The current study was performed with an aim to investigate the action and mechanism of Tongqiao Huoxue decoction (TQHXD) affecting the neurological impairment secondary to IS based on network pharmacology. Based on network pharmacology and bioinformatics analysis, target genes and pathways involved in the treatment of TQHXD against IS were predicted. Serum containing TQHXD was prepared through blood collection from C57BL/6 mice after intragastric administration of TQHXD. The main results exhibited that Prostaglandin-endoperoxide synthase 2 (PTGS2) exhibited an abundance in IS and enrichment in the NF-kappa B signaling pathway, holding the potential as targets related to TQHXD treatment for IS. TQHXD was found to rescue cell viability, inhibit apoptosis, and alleviate inflammation under oxygen and glucose deprivation and reoxygenation (OGD/R) exposure. Furthermore, our in vivo experiment validated the protective function of TQHXD in ischemic brain damage stimulated by middle cerebral artery occlusion (MCAO). This protective action of TQHXD could be attenuated by overexpressing nuclear factor (NF)-kappa B, which was dependent on PTGS2. Collectively, TQHXD was demonstrated to ameliorate IS-induced neurological impairment by blocking the NF-kappa B signaling pathway and down-regulating PTGS2.
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Affiliation(s)
- Zheyi Zhou
- Department of Neurology Laboratory, Liuzhou Hospital of Traditional Chinese Medicine, Liuzhou 545001, PR China
| | - Linglu Dun
- Department of Neurology Laboratory, Liuzhou Hospital of Traditional Chinese Medicine, Liuzhou 545001, PR China
| | - Qian Yang
- Department of Neurology Laboratory, Liuzhou Hospital of Traditional Chinese Medicine, Liuzhou 545001, PR China
| | - Jingrui Tao
- Department of Neurology Laboratory, Liuzhou Hospital of Traditional Chinese Medicine, Liuzhou 545001, PR China
| | - Peishan Yu
- Department of Neurology Laboratory, Liuzhou Hospital of Traditional Chinese Medicine, Liuzhou 545001, PR China
| | - Hong Xu
- Department of Neurology Laboratory, Liuzhou Hospital of Traditional Chinese Medicine, Liuzhou 545001, PR China
| | - Na Zhao
- Department of Neurology Laboratory, Liuzhou Hospital of Traditional Chinese Medicine, Liuzhou 545001, PR China
| | - Na Zheng
- Department of Neurology Laboratory, Liuzhou Hospital of Traditional Chinese Medicine, Liuzhou 545001, PR China
| | - Hongwei An
- Department of Neurology Laboratory, Liuzhou Hospital of Traditional Chinese Medicine, Liuzhou 545001, PR China
| | - Ping Yi
- Department of Neurology Laboratory, Liuzhou Hospital of Traditional Chinese Medicine, Liuzhou 545001, PR China.
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16
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Ye J, Huang F, Zeng H, Xu X, Wu G, Tian S, Zhao J, Zhang W. Multi-omics and network pharmacology study reveals the effects of Dengzhan Shengmai capsule against neuroinflammatory injury and thrombosis induced by ischemic stroke. JOURNAL OF ETHNOPHARMACOLOGY 2023; 305:116092. [PMID: 36587875 DOI: 10.1016/j.jep.2022.116092] [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: 10/21/2022] [Revised: 12/19/2022] [Accepted: 12/21/2022] [Indexed: 06/17/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Dengzhan Shengmai capsule (DZSM) is a traditional herb medicine used by Dai, an ethnic-minority community living in Xishuang banna tropical rainforest in Southwest of China. It was originally intended to treat disorders caused by insufficient brain function, characterized by gibberish, unresponsiveness, or confusion. Accumulating clinical evidences exhibited that it is effective on treating ischemic stroke (IS). However, the action of DZSM against IS needs to be further elucidated. AIM OF THE STUDY To investigate the effect of DZSM and its active components against IS and the way of its action by multi-omics and network pharmacology. MATERIALS AND METHODS A middle cerebral artery occlusion/reperfusion (MCAO/R) rat model was established to investigate the effect of DZSM on the focal cerebral ischemia/reperfusion injury. An integrated strategy combining metabolomics, network pharmacology and transcriptomics was performed to systematically clarify the underlying mechanism of action of DZSM against IS. AutoDock Vina was applied to conduct molecular docking simulation for the binding between the potential active compounds and targets. Arachidonic acid (AA) induced platelet aggregation and lipopolysaccharide (LPS) stimulated microglial cells BV2 inflammation models were applied for the in vitro validation of effects of DZSM and its potential active compounds. RESULTS In MCAO/R rats, DZSM could significantly reduce the infarct volume. Putative target prediction and functional enrichment analysis based on network pharmacological indicated that the key targets and the potential active compounds played important roles in DZSM's treatment to IS. The targets included four common genes (PTGS1, PTGS2, NFKB1 and NR1I2) and five key TFs (NFKB1, RELA, HIF1A, ESR1 and HDAC1), whilst 22 potential active compounds were identified. Molecular docking indicated that good binding affinity have been seen between those compounds and NR1I2, NFKB1, and RELA. Multi-omics study revealed that DZSM could regulate glutamate by influencing citrate cycle and glutamate involved pathways, and have showed neuroprotection activity and anti-inflammation activity by inhibiting NF-κB pathway. Neuroprotective effects of DZSM was validated by regulating of NF-κB signaling pathway and its downstream NO, TNF-α and IL-6 cytokines contributed to the activity of DZSM and its active compounds of scutellarin, quercetin 3-O-glucuronide, ginsenoside Rb1, schizandrol A and 3, 5-diCQA, whilst the antithrombotic activity of DZSM and its active compounds of schisanhenol, apigenin and schisantherin B were screened out by anti-platelet aggregation experiment. CONCLUSION DZSM could against IS via regulating its downstream NO, TNF-α and IL-6 cytokines through NF-κB signaling pathway and alleviating thrombosis.
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Affiliation(s)
- Ji Ye
- School of Pharmacy, Naval Medical University, Shanghai, 200433, China
| | - Fan Huang
- Institute of Interdisciplinary Complex Research, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Huawu Zeng
- School of Pharmacy, Naval Medical University, Shanghai, 200433, China
| | - Xike Xu
- School of Pharmacy, Naval Medical University, Shanghai, 200433, China
| | - Gaosong Wu
- Institute of Interdisciplinary Complex Research, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Saisai Tian
- School of Pharmacy, Naval Medical University, Shanghai, 200433, China.
| | - Jing Zhao
- Institute of Interdisciplinary Complex Research, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
| | - Weidong Zhang
- School of Pharmacy, Naval Medical University, Shanghai, 200433, China; Institute of Interdisciplinary Complex Research, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
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17
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Howell JA, Gaouette N, Lopez M, Burke SP, Perkins E, Bidwell GL. Elastin-like polypeptide delivery of anti-inflammatory peptides to the brain following ischemic stroke. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.03.15.532834. [PMID: 36993686 PMCID: PMC10055169 DOI: 10.1101/2023.03.15.532834] [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] [Indexed: 06/19/2023]
Abstract
Inflammatory processes are activated following ischemic strokes and lead to increased tissue damage for weeks following the ischemic insult, but there are no approved therapies that target this inflammation-induced secondary injury. Here, we report that SynB1-ELP-p50i, a novel protein inhibitor of the nuclear factor kappa B (NF-κB) inflammatory cascade bound to drug carrier elastin-like polypeptide (ELP), is able to enter both neurons and microglia, cross the blood-brain barrier, localize exclusively in the ischemic core and penumbra in Wistar-Kyoto and spontaneously hypertensive rats (SHRs), and reduce infarct volume in male SHRs. Additionally, in male SHRs, SynB1-ELP-p50i treatment improves survival for 14 days following stroke with no effects of toxicity or peripheral organ dysfunction. These results show high potential for ELP-delivered biologics for therapy of ischemic stroke and other central nervous system disorders and further support targeting inflammation in ischemic stroke.
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Affiliation(s)
- John Aaron Howell
- Graduate Program in Neuroscience, University of Mississippi Medical Center, Jackson, MS 39216
- Department of Neurology, University of Mississippi Medical Center, Jackson, MS 39216
| | - Nicholas Gaouette
- School of Medicine, University of Mississippi Medical Center, Jackson, MS 39216
| | - Mariper Lopez
- Department of Neurology, University of Mississippi Medical Center, Jackson, MS 39216
| | - Stephen P. Burke
- Department of Neurology, University of Mississippi Medical Center, Jackson, MS 39216
| | - Eddie Perkins
- Department of Neurosurgery, University of Mississippi Medical Center, Jackson, MS 39216
| | - Gene L. Bidwell
- Department of Neurology, University of Mississippi Medical Center, Jackson, MS 39216
- Department of Cell and Molecular Biology, University of Mississippi Medical Center, Jackson, MS 39216
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, MS 39216
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18
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Li Y, Jin T, Liu N, Wang J, Qin Z, Yin S, Zhang Y, Fu Z, Wu Y, Wang Y, Liu Y, Yang M, Pang A, Sun J, Wang Y, Yang X. A short peptide exerts neuroprotective effects on cerebral ischemia-reperfusion injury by reducing inflammation via the miR-6328/IKKβ/NF-κB axis. J Neuroinflammation 2023; 20:53. [PMID: 36855153 PMCID: PMC9972639 DOI: 10.1186/s12974-023-02739-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Accepted: 02/16/2023] [Indexed: 03/02/2023] Open
Abstract
BACKGROUND Despite considerable efforts, ischemic stroke (IS) remains a challenging clinical problem. Therefore, the discovery of effective therapeutic and targeted drugs based on the underlying molecular mechanism is crucial for effective IS treatment. METHODS A cDNA-encoding peptide was cloned from RNA extracted from Rana limnocharis skin, and the mature amino acid sequence was predicted and synthesized. Hemolysis and acute toxicity of the peptide were tested. Furthermore, its neuroprotective properties were evaluated using a middle cerebral artery occlusion/reperfusion (MCAO/R) model in rats and an oxygen-glucose deprivation/reperfusion (OGD/R) model in neuron-like PC12 cells. The underlying molecular mechanisms were explored using microRNA (miRNA) sequencing, quantitative real-time polymerase chain reaction, dual-luciferase reporter gene assay, and western blotting. RESULTS A new peptide (NP1) with an amino acid sequence of 'FLPAAICLVIKTC' was identified. NP1 showed no obvious toxicities in vivo and in vitro and was able to cross the blood-brain barrier. Intraperitoneal administration of NP1 (10 nmol/kg) effectively reduced the volume of cerebral infarction and relieved neurological dysfunction in MCAO/R model rats. Moreover, NP1 significantly alleviated the decrease in viability and increase in apoptosis of neuron-like PC12 cells induced by OGD/R. NP1 effectively suppressed inflammation by reducing interleukin-1β (IL-1β) and tumor necrosis factor-α (TNF-α) levels in vitro and in vivo. Furthermore, NP1 up-regulated the expression of miR-6328, which, in turn, down-regulated kappa B kinase β (IKKβ). IKKβ reduced the phosphorylation of nuclear factor-kappa B p65 (NF-κB p65) and inhibitor of NF-κB (I-κB), thereby inhibiting activation of the NF-κB pathway. CONCLUSIONS The newly discovered non-toxic peptide NP1 ('FLPAAICLVIKTC') exerted neuroprotective effects on cerebral ischemia-reperfusion injury by reducing inflammation via the miR-6328/IKKβ/NF-κB axis. Our findings not only provide an exogenous peptide drug candidate and endogenous small nucleic acid drug candidate but also a new drug target for the treatment of IS. This study highlights the importance of peptides in the development of new drugs, elucidation of pathological mechanisms, and discovery of new drug targets.
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Affiliation(s)
- Yilin Li
- grid.285847.40000 0000 9588 0960Department of Anatomy and Histology and Embryology, Faculty of Basic Medical Science, Kunming Medical University, Kunming, 650500 Yunnan China
| | - Tao Jin
- Department of Orthopedics, 920th Hospital of Joint Logistics Support Force of PLA, Kunming, 650032 Yunnan China
| | - Naixin Liu
- grid.285847.40000 0000 9588 0960Department of Anatomy and Histology and Embryology, Faculty of Basic Medical Science, Kunming Medical University, Kunming, 650500 Yunnan China
| | - Junsong Wang
- grid.285847.40000 0000 9588 0960Department of Anatomy and Histology and Embryology, Faculty of Basic Medical Science, Kunming Medical University, Kunming, 650500 Yunnan China
| | - Zihan Qin
- grid.285847.40000 0000 9588 0960Department of Anatomy and Histology and Embryology, Faculty of Basic Medical Science, Kunming Medical University, Kunming, 650500 Yunnan China
| | - Saige Yin
- grid.285847.40000 0000 9588 0960Department of Anatomy and Histology and Embryology, Faculty of Basic Medical Science, Kunming Medical University, Kunming, 650500 Yunnan China
| | - Yingxuan Zhang
- grid.285847.40000 0000 9588 0960Department of Anatomy and Histology and Embryology, Faculty of Basic Medical Science, Kunming Medical University, Kunming, 650500 Yunnan China
| | - Zhe Fu
- grid.285847.40000 0000 9588 0960Department of Anatomy and Histology and Embryology, Faculty of Basic Medical Science, Kunming Medical University, Kunming, 650500 Yunnan China
| | - Yutong Wu
- grid.285847.40000 0000 9588 0960Department of Anatomy and Histology and Embryology, Faculty of Basic Medical Science, Kunming Medical University, Kunming, 650500 Yunnan China
| | - Yinglei Wang
- grid.285847.40000 0000 9588 0960Department of Anatomy and Histology and Embryology, Faculty of Basic Medical Science, Kunming Medical University, Kunming, 650500 Yunnan China
| | - Yixiang Liu
- grid.413059.a0000 0000 9952 9510Key Laboratory of Chemistry in Ethnic Medicinal Resources and Key Laboratory of Natural Products Synthetic Biology of Ethnic Medicinal Endophytes, State Ethnic Affairs Commission and Ministry of Education, School of Ethnic Medicine, Yunnan Minzu University, Kunming, 650504 Yunnan China
| | - Meifeng Yang
- grid.285847.40000 0000 9588 0960Department of Anatomy and Histology and Embryology, Faculty of Basic Medical Science, Kunming Medical University, Kunming, 650500 Yunnan China
| | - Ailan Pang
- Department of Neurology, First Affiliated Hospital of Kunming Medical University, Kunming, 650031, Yunnan, China.
| | - Jun Sun
- Department of Anatomy and Histology and Embryology, Faculty of Basic Medical Science, Kunming Medical University, Kunming, 650500, Yunnan, China.
| | - Ying Wang
- Key Laboratory of Chemistry in Ethnic Medicinal Resources and Key Laboratory of Natural Products Synthetic Biology of Ethnic Medicinal Endophytes, State Ethnic Affairs Commission and Ministry of Education, School of Ethnic Medicine, Yunnan Minzu University, Kunming, 650504, Yunnan, China.
| | - Xinwang Yang
- Department of Anatomy and Histology and Embryology, Faculty of Basic Medical Science, Kunming Medical University, Kunming, 650500, Yunnan, China.
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19
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Zhang H, Wang L, Yang Y, Cai C, Wang X, Deng L, He B, Zhou W, Cui Y. DL-3-n-butylphthalide (NBP) alleviates poststroke cognitive impairment (PSCI) by suppressing neuroinflammation and oxidative stress. Front Pharmacol 2023; 13:987293. [PMID: 36712684 PMCID: PMC9878832 DOI: 10.3389/fphar.2022.987293] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Accepted: 12/30/2022] [Indexed: 01/12/2023] Open
Abstract
Currently, the recovery of cognitive function has become an essential part of stroke rehabilitation. DL-3-n-butylphthalide (NBP) is a neuroprotective reagent and has been used in stroke treatment. Clinical studies have confirmed that NBP can achieve better cognitive outcomes in ischemic stroke patients than in healthy controls. In this study, we aimed to investigate the influences of NBP on cognitive function in an ischemic reperfusion (I/R) rat model. Our results showed that NBP profoundly decreased neurological scores, reduced cerebral infarct areas and enhanced cerebral blood flow (CBF). NBP potently alleviated poststroke cognitive impairment (PSCI) including depression-like behavior and learning, memory and social cognition impairments, in I/R rats. NBP distinctly suppressed the activation of microglia and astrocytes and improved neuron viability in the ischemic brain. NBP inhibited the expression of inflammatory cytokines, including interleukin-6 (IL-6), interleukin-1β (IL-1β) and tumor necrosis factor-α (TNF-α), by targeting the nuclear factor kappa B/inducible nitric oxide synthase (NF-κB/iNOS) pathway and decreased cerebral oxidative stress factors, including reactive oxygen species (ROS) and malondialdehyde (MDA), by targeting the kelch like ECH associated protein 1/nuclear factor-erythroid 2 p45-related factor 2 (Keap1/Nrf2) pathway in the ischemic brain. The current study revealed that NBP treatment improved neurological function and ameliorated cognitive impairment in I/R rats, possibly by synergistically suppressing inflammation and oxidative stress.
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Affiliation(s)
- Hui Zhang
- Neuroscience and Behavioral Research Center, Academician Workstation, Changsha Medical University, Changsha, China
| | - Laifa Wang
- Neuroscience and Behavioral Research Center, Academician Workstation, Changsha Medical University, Changsha, China
| | - Yongping Yang
- Neuroscience and Behavioral Research Center, Academician Workstation, Changsha Medical University, Changsha, China
| | - Chuanhai Cai
- Neuroscience and Behavioral Research Center, Academician Workstation, Changsha Medical University, Changsha, China
| | - Xueqin Wang
- Neuroscience and Behavioral Research Center, Academician Workstation, Changsha Medical University, Changsha, China
| | - Ling Deng
- Neuroscience and Behavioral Research Center, Academician Workstation, Changsha Medical University, Changsha, China
| | - Binsheng He
- Neuroscience and Behavioral Research Center, Academician Workstation, Changsha Medical University, Changsha, China,Hunan Key Laboratory of the Research and Development of Novel Pharmaceutical Preparations, Changsha Medical University, Changsha, China
| | - Wenhu Zhou
- Neuroscience and Behavioral Research Center, Academician Workstation, Changsha Medical University, Changsha, China,Hunan Key Laboratory of the Research and Development of Novel Pharmaceutical Preparations, Changsha Medical University, Changsha, China,Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan, China,*Correspondence: Wenhu Zhou, ; Yanhui Cui,
| | - Yanhui Cui
- Neuroscience and Behavioral Research Center, Academician Workstation, Changsha Medical University, Changsha, China,*Correspondence: Wenhu Zhou, ; Yanhui Cui,
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Li JY, Zheng ZX, Liu L, Du O, Yu NW, Zou Y, Seong SY, Du JR. Neuroprotective effect of alpha-kinase 1 knockdown against cerebral ischemia through inhibition of the NF-κB pathway and neuroinflammation. Int Immunopharmacol 2022; 113:109330. [DOI: 10.1016/j.intimp.2022.109330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 09/25/2022] [Accepted: 10/06/2022] [Indexed: 11/05/2022]
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Morris-Blanco KC, Chokkalla AK, Kim T, Bhatula S, Bertogliat MJ, Gaillard AB, Vemuganti R. High-Dose Vitamin C Prevents Secondary Brain Damage After Stroke via Epigenetic Reprogramming of Neuroprotective Genes. Transl Stroke Res 2022; 13:1017-1036. [PMID: 35306630 PMCID: PMC9485293 DOI: 10.1007/s12975-022-01007-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 02/27/2022] [Accepted: 03/14/2022] [Indexed: 12/27/2022]
Abstract
Vitamin C has recently been identified as an epigenetic regulator by activating ten-eleven translocases (TETs), enzymes involved in generating DNA hydroxymethylcytosine (5hmC). Currently, we investigated whether high-dose vitamin C promotes neuroprotection through epigenetic modulation of 5hmC, if there are sex-specific differences in outcome, and the therapeutic potential of vitamin C in stroke-related comorbidities in adult mice. Post-stroke treatment with ascorbate (reduced form), but not dehydroascorbate (oxidized form), increased TET3 activity and 5hmC levels and reduced infarct following focal ischemia. Hydroxymethylation DNA immunoprecipitation sequencing showed that ascorbate increased 5hmC across the genome and specifically in promoters of several stroke pathophysiology-related genes, particularly anti-inflammatory genes. Ascorbate also decreased markers of oxidative stress, mitochondrial fragmentation, and apoptosis in cortical peri-infarct neurons and promoted motor and cognitive functional recovery in both sexes via TET3. Furthermore, post-stroke ascorbate treatment reduced infarct volume and improved motor function recovery in aged, hypertensive and diabetic male and female mice. Delayed ascorbate treatment at 6 h of reperfusion was still effective at reducing infarct volume and motor impairments in adult mice. Collectively, this study shows that post-stroke treatment with high-dose ascorbate protects the brain through epigenetic reprogramming and may function as a robust therapeutic against stroke injury.
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Affiliation(s)
- Kahlilia C Morris-Blanco
- Department of Neurological Surgery, University of Wisconsin-Madison, Mail code CSC-8660, 600 Highland Ave, Madison, WI, 53792, USA
- William S. Middleton Veterans Administration Hospital, Madison, WI, USA
| | - Anil K Chokkalla
- Department of Neurological Surgery, University of Wisconsin-Madison, Mail code CSC-8660, 600 Highland Ave, Madison, WI, 53792, USA
- Cellular and Molecular Pathology Program, University of Wisconsin-Madison, Madison, WI, USA
| | - TaeHee Kim
- Department of Neurological Surgery, University of Wisconsin-Madison, Mail code CSC-8660, 600 Highland Ave, Madison, WI, 53792, USA
| | - Saivenkateshkomal Bhatula
- Department of Neurological Surgery, University of Wisconsin-Madison, Mail code CSC-8660, 600 Highland Ave, Madison, WI, 53792, USA
- William S. Middleton Veterans Administration Hospital, Madison, WI, USA
| | - Mario J Bertogliat
- Department of Neurological Surgery, University of Wisconsin-Madison, Mail code CSC-8660, 600 Highland Ave, Madison, WI, 53792, USA
| | - Alexis B Gaillard
- Department of Neurological Surgery, University of Wisconsin-Madison, Mail code CSC-8660, 600 Highland Ave, Madison, WI, 53792, USA
| | - Raghu Vemuganti
- Department of Neurological Surgery, University of Wisconsin-Madison, Mail code CSC-8660, 600 Highland Ave, Madison, WI, 53792, USA.
- William S. Middleton Veterans Administration Hospital, Madison, WI, USA.
- Cellular and Molecular Pathology Program, University of Wisconsin-Madison, Madison, WI, USA.
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22
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Li L, Pan G, Fan R, Li D, Guo L, Ma L, Liang H, Qiu J. Luteolin alleviates inflammation and autophagy of hippocampus induced by cerebral ischemia/reperfusion by activating PPAR gamma in rats. BMC Complement Med Ther 2022; 22:176. [PMID: 35778706 PMCID: PMC9248165 DOI: 10.1186/s12906-022-03652-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 05/23/2022] [Indexed: 11/10/2022] Open
Abstract
Background Luteolin, a flavonoid compound with anti-inflammatory activity, has been reported to alleviate cerebral ischemia/reperfusion (I/R) injury. However, its potential mechanism remains unclear. Methods The binding activity of luteolin to peroxisome proliferator-activated receptor gamma (PPARγ) was calculated via molecular docking analysis. Rats were subjected to middle cerebral artery occlusion and reperfusion (MCAO/R). After reperfusion, vehicle, 25 mg/kg/d luteolin, 50 mg/kg/d luteolin, 10 mg/kg/d pioglitazone, 50 mg/kg/d luteolin combined with 10 mg/kg/d T0070907 (PPARγ inhibitor) were immediately orally treatment for 7 days. ELISA, TTC staining, H&E staining, immunohistochemistry, immunofluorescence and transmission electron microscope methods were performed to evaluate the inflammation and autophagy in damaged hippocampal region. The PPARγ, light chain 3 (LC3) B-II/LC3B-I and p-nuclear factor-κB (NF-κB) p65 proteins expression levels in damaged hippocampal region were analyzed. Results Luteolin showed good PPARγ activity according to docking score (score = − 8.2). Luteolin treatment downregulated the infarct area and the pro-inflammatory cytokines levels caused by MCAO/R injury. Moreover, luteolin administration ameliorated neuroinflammation and autophagy in damaged hippocampal region. Pioglitazone plays protective roles similar to luteolin. T0070907 concealed the neuroprotective roles of 50 mg/kg/d luteolin. Conclusions Luteolin exerts neuroprotective roles against inflammation and autophagy of hippocampus induced by cerebral I/R by activating PPARγ in rats. Supplementary Information The online version contains supplementary material available at 10.1186/s12906-022-03652-8.
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Nrf2 Regulates Oxidative Stress and Its Role in Cerebral Ischemic Stroke. Antioxidants (Basel) 2022; 11:antiox11122377. [PMID: 36552584 PMCID: PMC9774301 DOI: 10.3390/antiox11122377] [Citation(s) in RCA: 45] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 11/23/2022] [Accepted: 11/27/2022] [Indexed: 12/05/2022] Open
Abstract
Cerebral ischemic stroke is characterized by acute ischemia in a certain part of the brain, which leads to brain cells necrosis, apoptosis, ferroptosis, pyroptosis, etc. At present, there are limited effective clinical treatments for cerebral ischemic stroke, and the recovery of cerebral blood circulation will lead to cerebral ischemia-reperfusion injury (CIRI). Cerebral ischemic stroke involves many pathological processes such as oxidative stress, inflammation, and mitochondrial dysfunction. Nuclear factor erythroid 2-related factor 2 (Nrf2), as one of the most critical antioxidant transcription factors in cells, can coordinate various cytoprotective factors to inhibit oxidative stress. Targeting Nrf2 is considered as a potential strategy to prevent and treat cerebral ischemia injury. During cerebral ischemia, Nrf2 participates in signaling pathways such as Keap1, PI3K/AKT, MAPK, NF-κB, and HO-1, and then alleviates cerebral ischemia injury or CIRI by inhibiting oxidative stress, anti-inflammation, maintaining mitochondrial homeostasis, protecting the blood-brain barrier, and inhibiting ferroptosis. In this review, we have discussed the structure of Nrf2, the mechanisms of Nrf2 in cerebral ischemic stroke, the related research on the treatment of cerebral ischemia through the Nrf2 signaling pathway in recent years, and expounded the important role and future potential of the Nrf2 pathway in cerebral ischemic stroke.
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Liu X, Xiao X, Han X, Yao L, Lan W. A New Therapeutic Trend: Natural Medicine for Ameliorating Ischemic Stroke via PI3K/Akt Signaling Pathway. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27227963. [PMID: 36432062 PMCID: PMC9694461 DOI: 10.3390/molecules27227963] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 11/13/2022] [Accepted: 11/15/2022] [Indexed: 11/19/2022]
Abstract
Ischemic stroke (IS) is an acute cerebrovascular disease caused by sudden arterial occlusion, which is characterized by a high morbidity, mortality, and disability rate. It is one of the most important causes of nervous system morbidity and mortality in the world. In recent years, the search for new medicine for the treatment of IS has become an attractive research focus. Due to the extremely limited time window of traditional medicine treatment, some side effects may occur, and accompanied by the occurrence of adverse reactions, the frequency of exploration with natural medicine is significantly increased. Phosphatidylinositol-3-kinase/Protein kinase B (PI3K/Akt) signaling pathway is a classical pathway for cell metabolism, growth, apoptosis, and other physiological activities. There is considerable research on medicine that treats various diseases through this pathway. This review focuses on how natural medicines (including herbs and insects) regulate important pathophysiological processes such as inflammation, oxidative stress, apoptosis, and autophagy through the PI3K/Akt signaling pathway, and the role it plays in improving IS. We found that many kinds of herbal medicine and insect medicine can alleviate the damage caused by IS through the PI3K/Akt signaling pathway. Moreover, the prescription after their combination can also achieve certain results. Therefore, this review provides a new candidate category for medicine development in the treatment of IS.
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Affiliation(s)
- Xian Liu
- College of Traditional Chinese Medicine, Xinjiang Medical University, Urumqi 830017, China
| | - Xinyu Xiao
- Dermatological Department, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610015, China
| | - Xue Han
- College of Traditional Chinese Medicine, Xinjiang Medical University, Urumqi 830017, China
| | - Lan Yao
- College of Traditional Chinese Medicine, Xinjiang Medical University, Urumqi 830017, China
| | - Wei Lan
- College of Traditional Chinese Medicine, Xinjiang Medical University, Urumqi 830017, China
- Correspondence:
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25
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Wang YC, Chen YS, Hsieh ST. Neuroprotective Effects of a Cardioplegic Combination (Adenosine, Lidocaine, and Magnesium) in an Ischemic Stroke Model. Mol Neurobiol 2022; 59:7045-7055. [PMID: 36074233 DOI: 10.1007/s12035-022-03020-0] [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: 01/25/2022] [Accepted: 08/26/2022] [Indexed: 11/26/2022]
Abstract
Adenosine, lidocaine, and magnesium (ALM) are clinically available cardioplegic solutions. We examined the effects of low-dose ALM on ischemic stroke in cell and animal models. Cobalt chloride (CoCl2)-treated SH-SY5Y cells were used as a surrogate model to mimic oxygen-glucose deprivation conditions. The cells were incubated with different dilutions of ALM authentic solution (1.0 mM adenosine, 2.0 mM lidocaine, and5 mM MgSO4 in Earle's balanced salt solution). At a concentration of 2.5%, ALM significantly reduced CoCl2-induced cell loss. This protective effect persisted even when ALM was administered 1 h after the insult. We used transient middle cerebral artery occlusion to investigate the therapeutic effects of ALM in vivo. Rats were randomly assigned to two groups-the experimental (ALM) and control (saline) groups-and infusion was administered during the ischemia for 1 h. The infarction area was significantly reduced in the ALM group compared with the control group (5.0% ± 2.0% vs. 23.5% ± 5.5%, p = 0.013). Neurological deficits were reduced in the ALM group compared with the control group (modified Longa score: 0 [0-1] vs. 2 [1-2], p = 0.047). This neuroprotective effect was substantiated by a reduction in the levels of various neuronal injury markers in plasma. These results demonstrate the neuroprotective effects of ALM and may provide a new therapeutic strategy for ischemic stroke.
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Affiliation(s)
- Yi-Chia Wang
- Department of Anesthesiology, National Taiwan University College of Medicine and National University Hospital, Taipei, Taiwan
- Graduate Institutes of Anatomy and Cell Biology, National Taiwan University College of Medicine, 1 Jen-Ai Road, Section 1, Taipei, 100233, Taiwan
| | - Yih-Sharng Chen
- Department of Surgery, National Taiwan University College of Medicine and National University Hospital, Taipei, Taiwan
| | - Sung-Tsang Hsieh
- Graduate Institutes of Anatomy and Cell Biology, National Taiwan University College of Medicine, 1 Jen-Ai Road, Section 1, Taipei, 100233, Taiwan.
- Department of Neurology, National Taiwan University College of Medicine and National University Hospital, Taipei, Taiwan.
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Gu Y, Zhou C, Piao Z, Yuan H, Jiang H, Wei H, Zhou Y, Nan G, Ji X. Cerebral edema after ischemic stroke: Pathophysiology and underlying mechanisms. Front Neurosci 2022; 16:988283. [PMID: 36061592 PMCID: PMC9434007 DOI: 10.3389/fnins.2022.988283] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 08/01/2022] [Indexed: 11/30/2022] Open
Abstract
Ischemic stroke is associated with increasing morbidity and has become the main cause of death and disability worldwide. Cerebral edema is a serious complication arising from ischemic stroke. It causes an increase in intracranial pressure, rapid deterioration of neurological symptoms, and formation of cerebral hernia, and is an important risk factor for adverse outcomes after stroke. To date, the detailed mechanism of cerebral edema after stroke remains unclear. This limits advances in prevention and treatment strategies as well as drug development. This review discusses the classification and pathological characteristics of cerebral edema, the possible relationship of the development of cerebral edema after ischemic stroke with aquaporin 4, the SUR1-TRPM4 channel, matrix metalloproteinase 9, microRNA, cerebral venous reflux, inflammatory reactions, and cerebral ischemia/reperfusion injury. It also summarizes research on new therapeutic drugs for post-stroke cerebral edema. Thus, this review provides a reference for further studies and for clinical treatment of cerebral edema after ischemic stroke.
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Affiliation(s)
- Yuhang Gu
- Department of Neurology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Chen Zhou
- Beijing Institute of Brain Disorders, Beijing Advanced Innovation Center for Big Data-Based Precision Medicine, Capital Medical University, Beijing, China
| | - Zhe Piao
- Department of Neurology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Honghua Yuan
- Department of Neurology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Huimin Jiang
- Beijing Institute of Brain Disorders, Beijing Advanced Innovation Center for Big Data-Based Precision Medicine, Capital Medical University, Beijing, China
| | - Huimin Wei
- Advanced Innovation Center for Big Data-Based Precision Medicine, School of Biological Science and Medical Engineering, Beihang University, Beijing, China
| | - Yifan Zhou
- Beijing Institute of Brain Disorders, Beijing Advanced Innovation Center for Big Data-Based Precision Medicine, Capital Medical University, Beijing, China
| | - Guangxian Nan
- Department of Neurology, China-Japan Union Hospital of Jilin University, Changchun, China
- *Correspondence: Guangxian Nan,
| | - Xunming Ji
- Beijing Institute of Brain Disorders, Beijing Advanced Innovation Center for Big Data-Based Precision Medicine, Capital Medical University, Beijing, China
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
- Xunming Ji,
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27
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The Role of Concomitant Nrf2 Targeting and Stem Cell Therapy in Cerebrovascular Disease. Antioxidants (Basel) 2022; 11:antiox11081447. [PMID: 35892653 PMCID: PMC9332234 DOI: 10.3390/antiox11081447] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 07/22/2022] [Accepted: 07/25/2022] [Indexed: 02/01/2023] Open
Abstract
Despite the reality that a death from cerebrovascular accident occurs every 3.5 min in the United States, there are few therapeutic options which are typically limited to a narrow window of opportunity in time for damage mitigation and recovery. Novel therapies have targeted pathological processes secondary to the initial insult, such as oxidative damage and peripheral inflammation. One of the greatest challenges to therapy is the frequently permanent damage within the CNS, attributed to a lack of sufficient neurogenesis. Thus, recent use of cell-based therapies for stroke have shown promising results. Unfortunately, stroke-induced inflammatory and oxidative damage limit the therapeutic potential of these stem cells. Nuclear factor erythroid 2-related factor 2 (Nrf2) has been implicated in endogenous antioxidant and anti-inflammatory activity, thus presenting an attractive target for novel therapeutics to enhance stem cell therapy and promote neurogenesis. This review assesses the current literature on the concomitant use of stem cell therapy and Nrf2 targeting via pharmaceutical and natural agents, highlighting the need to elucidate both upstream and downstream pathways in optimizing Nrf2 treatments in the setting of cerebrovascular disease.
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28
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Gupta S, Guleria RS. Involvement of Nuclear Factor-κB in Inflammation and Neuronal Plasticity Associated with Post-Traumatic Stress Disorder. Cells 2022; 11:cells11132034. [PMID: 35805118 PMCID: PMC9265339 DOI: 10.3390/cells11132034] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 06/17/2022] [Accepted: 06/18/2022] [Indexed: 11/29/2022] Open
Abstract
Post-traumatic stress disorder (PTSD) is a debilitating psychiatric condition which develops either due to stress or witnessing a traumatic situation. PTSD is characterized by acute and chronic stress response exhibit anxiety, fear, and an increased inflammatory etiology. Inflammation contributes a critical role in several parts of the brain that control fear and flashback cognatic function. It is known that impairment of the neurological circuit leads to the development of PTSD. Evidence has suggested that dysregulation of the sympathetic nervous system and hypothalamic-pituitary adrenal (HPA) axis and inflammatory responsiveness are pivotal and a greater risk in PTSD. NF-κB, a master regulator for inflammation, has been showed to modulate memory reconsolidation and synaptic plasticity; however, NF-κB’s association with PTSD remain elusive. In this review, we provide relevant findings regarding NF-κB activity in various components of brain and describe a potential mechanism linking PTSD using preclinical and clinical models. We envisage NF-κB signaling as a crucial mediator for inflammation, cognitive function, memory restoration and behavioral actions of stress and suggest that it could be used for therapeutic intervention in PTSD.
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29
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Li X, Guo K, Zhang R, Wang W, Sun H, Yagüe E, Hu Y. Exploration of the Mechanism of Salvianolic Acid for Injection Against Ischemic Stroke: A Research Based on Computational Prediction and Experimental Validation. Front Pharmacol 2022; 13:894427. [PMID: 35694259 PMCID: PMC9175744 DOI: 10.3389/fphar.2022.894427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 04/21/2022] [Indexed: 11/13/2022] Open
Abstract
Ischemic stroke (IS) is an acute neurological injury that occurs when a vessel supplying blood to the brain is obstructed, which is a leading cause of death and disability. Salvia miltiorrhiza has been used in the treatment of cardiovascular and cerebrovascular diseases for over thousands of years due to its effect activating blood circulation and dissipating blood stasis. However, the herbal preparation is chemically complex and the diversity of potential targets makes difficult to determine its mechanism of action. To gain insight into its mechanism of action, we analyzed “Salvianolic acid for injection” (SAFI), a traditional Chinese herbal medicine with anti-IS effects, using computational systems pharmacology. The potential targets of SAFI, obtained from literature mining and database searches, were compared with IS-associated genes, giving 38 common genes that were related with pathways involved in inflammatory response. This suggests that SAFI might function as an anti-inflammatory agent. Two genes associated with inflammation (PTGS1 and PTGS2), which were inhibited by SAFI, were preliminarily validated in vitro. The results showed that SAFI inhibited PTGS1 and PTGS2 activity in a dose-dependent manner and inhibited the production of prostaglandin E2 induced by lipopolysaccharide in RAW264.7 macrophages and BV-2 microglia. This approach reveals the possible pharmacological mechanism of SAFI acting on IS, and also provides a feasible way to elucidate the mechanism of traditional Chinese medicine (TCM).
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Affiliation(s)
- Xiaoqiang Li
- Cloudphar Pharmaceuticals Co., Ltd., Shenzhen, China
| | - Kaimin Guo
- Cloudphar Pharmaceuticals Co., Ltd., Shenzhen, China
| | - Ruili Zhang
- College of Pharmacy, Haihe Education Park, Nankai University, Tianjin, China
| | - Wenjia Wang
- Cloudphar Pharmaceuticals Co., Ltd., Shenzhen, China
| | - He Sun
- Tasly Pharmaceuticals Co., Ltd., Tianjin, China
| | - Ernesto Yagüe
- Division of Cancer, Imperial College Faculty of Medicine, Hammersmith Hospital Campus, London, United Kingdom
| | - Yunhui Hu
- Cloudphar Pharmaceuticals Co., Ltd., Shenzhen, China
- *Correspondence: Yunhui Hu,
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30
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The essential role of N6-methyladenosine RNA methylation in complex eye diseases. Genes Dis 2022; 10:505-520. [DOI: 10.1016/j.gendis.2022.05.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 04/29/2022] [Accepted: 05/08/2022] [Indexed: 11/20/2022] Open
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31
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Qin X, Wang J, Chen S, Liu G, Wu C, Lv Q, He X, Bai X, Huang W, Liao H. Astrocytic p75 NTR expression provoked by ischemic stroke exacerbates the blood-brain barrier disruption. Glia 2022; 70:892-912. [PMID: 35064700 DOI: 10.1002/glia.24146] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 01/07/2022] [Accepted: 01/09/2022] [Indexed: 12/16/2022]
Abstract
The disruption of the blood-brain barrier (BBB) plays a critical role in the pathology of ischemic stroke. p75 neurotrophin receptor (p75NTR ) contributes to the disruption of the blood-retinal barrier in retinal ischemia. However, whether p75NTR influences the BBB permeability after acute cerebral ischemia remains unknown. The present study investigated the role and underlying mechanism of p75NTR on BBB integrity in an ischemic stroke mouse model, middle cerebral artery occlusion (MCAO). After 24 h of MCAO, astrocytes and endothelial cells in the infarct-affected brain area up-regulated p75NTR . Genetic p75NTR knockdown (p75NTR+/- ) or pharmacological inhibition of p75NTR using LM11A-31, a selective inhibitor of p75NTR , both attenuated brain damage and BBB leakage in MCAO mice. Astrocyte-specific conditional knockdown of p75NTR mediated with an adeno-associated virus significantly ameliorated BBB disruption and brain tissue damage, as well as the neurological functions after stroke. Further molecular biological examinations indicated that astrocytic p75NTR activated NF-κB and HIF-1α signals, which upregulated the expression of MMP-9 and vascular endothelial growth factor (VEGF), subsequently leading to tight junction degradation after ischemia. As a result, increased leukocyte infiltration and microglia activation exacerbated brain injury after stroke. Overall, our results provide novel insight into the role of astrocytic p75NTR in BBB disruption after acute cerebral ischemia. The p75NTR may therefore be a potential therapeutic target for the treatment of ischemic stroke.
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Affiliation(s)
- Xiaoying Qin
- New drug screening center, Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing, China
| | - Jianing Wang
- New drug screening center, Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing, China
| | - Shujian Chen
- New drug screening center, Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing, China
| | - Gang Liu
- New drug screening center, Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing, China
| | - Chaoran Wu
- New drug screening center, Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing, China
| | - Qunyu Lv
- New drug screening center, Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing, China
| | - Xinran He
- New drug screening center, Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing, China
| | - Xianshu Bai
- Molecular Physiology, Center for Integrative Physiology and Molecular Medicine (CIPMM), University of Saarland, Homburg, Germany
| | - Wenhui Huang
- Molecular Physiology, Center for Integrative Physiology and Molecular Medicine (CIPMM), University of Saarland, Homburg, Germany
| | - Hong Liao
- New drug screening center, Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing, China
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Chen B, Cao P, Guo X, Yin M, Li X, Jiang L, Shao J, Chen X, Jiang C, Tao L, Zhou L, Yu H. Maraviroc, an inhibitor of chemokine receptor type 5, alleviates neuroinflammatory response after cerebral Ischemia/reperfusion injury via regulating MAPK/NF-κB signaling. Int Immunopharmacol 2022; 108:108755. [PMID: 35395466 DOI: 10.1016/j.intimp.2022.108755] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 03/20/2022] [Accepted: 03/31/2022] [Indexed: 12/14/2022]
Abstract
Neuroinflammation is a key factor that contributes to the secondary damage after cerebral ischemia/reperfusion (CI/R) injury. Chemokine receptor type 5 (CCR5) has shown its pro-inflammatory effects during central nervous system (CNS) diseases. However, the role of CCR5 in CI/R injury is still unclear. In this study, we administered maraviroc (MVC, APEXBIO, UK-427857), a CCR5 antagonist, to the middle cerebral artery occlusion (MCAO) mice. In vivo studies showed that MVC was successively intraperitoneally (i.p.) injected with doses (20 mg/kg body weight) for 3 days after mice MCAO. MVC showed its neuroprotective effects in alleviating neurological deficits and infarct volumes after MCAO. The level of apoptosis and inflammation were remarkably decreased by MVC treatment after CI/R injury. Subsequently, primary microglia cells were stimulated with doses of MVC (20 nM) for 12 h after oxygen-glucose deprivation/reoxygenation model (OGD/R) in vitro. MVC significantly increased the viability of primary microglia after OGD/R. The expression of pro-inflammatory cytokines (IL-1β, IL-6 and TNF-α) in microglia was down-regulated by MVC treatment. Mechanistically, MVC also inhibited the secretion of these cytokines by microglia after OGD stimulation. Furthermore, the key components of NF-κB pathway were measured in vivo and in vitro after MCAO and OGD. MVC significantly inhibited the activity of NF-κB pathway in the above pathological environments. Finally, our data indicated that MVC treatment decreased the activation of JNK signaling pathway after CI/R injury in vivo and in vitro. The JNK activator anisomycin (AN, Beyotime, SC0132) reversed the neuroprotective effects of MVC, indicating that the JNK pathway is involved in the anti-inflammatory and anti-apoptotic mechanisms of MVC in CI/R injury. Our data demonstrated that CCR5 inhibition exhibits neuroprotective effects after CI/R injury. MVC, which is widely used for HIV treatment by its anti-virus effect, is a potential drug for the treatment of ischemic stroke in the future clinical trials. MVC has been widely used in HIV treatment which showed its safety. Based on its anti-inflammatory and anti-apoptotic mechanisms, we speculate that MVC may be a potential drug for treating ischemic stroke in future clinical trials.
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Affiliation(s)
- Beilei Chen
- Clinical Medical College, Yangzhou University, Northern Jiangsu People's Hospital, Yangzhou, Jiangsu, 225009, China
| | - Pingping Cao
- Department of Neurology, Northern Jiangsu People's Hospital, Dalian Medical University, Dalian, Liaoning 116044, China
| | - Xin Guo
- Department of Neurology, Northern Jiangsu People's Hospital, Dalian Medical University, Dalian, Liaoning 116044, China
| | - Mengmei Yin
- Clinical Medical College, Yangzhou University, Northern Jiangsu People's Hospital, Yangzhou, Jiangsu, 225009, China
| | - Xiaobo Li
- Clinical Medical College, Yangzhou University, Northern Jiangsu People's Hospital, Yangzhou, Jiangsu, 225009, China
| | - Li Jiang
- Clinical Medical College, Yangzhou University, Northern Jiangsu People's Hospital, Yangzhou, Jiangsu, 225009, China
| | - Jun Shao
- Clinical Medical College, Yangzhou University, Northern Jiangsu People's Hospital, Yangzhou, Jiangsu, 225009, China
| | - Xin Chen
- Clinical Medical College, Yangzhou University, Northern Jiangsu People's Hospital, Yangzhou, Jiangsu, 225009, China
| | - Chao Jiang
- Clinical Medical College, Yangzhou University, Northern Jiangsu People's Hospital, Yangzhou, Jiangsu, 225009, China
| | - Luhang Tao
- Clinical Medical College, Yangzhou University, Northern Jiangsu People's Hospital, Yangzhou, Jiangsu, 225009, China
| | - Lin Zhou
- Department of Medical Laboratory, Clinical Medical College of Yangzhou University, Northern Jiangsu people's hospital, 98 Nantong West Road, Yangzhou, Jiangsu, 225001, China.
| | - Hailong Yu
- Clinical Medical College, Yangzhou University, Northern Jiangsu People's Hospital, Yangzhou, Jiangsu, 225009, China; Department of Neurology, Northern Jiangsu People's Hospital, Yangzhou, Jiangsu, 225009, China.
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Zhang F, Wang Z, Sun B, Huang Y, Chen C, Hu J, Li L, Xia P, Ye Z. Propofol rescued astrocytes from LPS-induced inflammatory response via blocking LncRNA-MEG3/NF-κB axis. Curr Neurovasc Res 2022; 19:5-18. [PMID: 35297349 DOI: 10.2174/1567202619666220316112509] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 12/27/2021] [Accepted: 12/31/2021] [Indexed: 11/22/2022]
Abstract
OBJECTIVE Evidences had demonstrated that propofol attenuated neuro-inflammation following brain ischemia. Moreover, LncRNA-MEG3 was identified as an independent prognostic marker for ischemic stroke patients, and was found to be correlated with cerebral ischemia in animal models. Therefore, the current study explored the role of propofol on lipopolysaccharide (LPS)-mediated inflammation in cultured astrocytes, along with the molecular mechanism involved in LncRNA-MEG3/NF-κB axis. METHODS The primary cultured astrocytes isolated from rats were used to establish an inflammatory model, which were treated with LPS. Propofol was administrated to the primary cultured astrocytes during LPS treatment. The effect of propofol on pro-inflammatory cytokines and the LncRNA-MEG3/NF-κB pathway were detected by ELISA, qRT-PCR and Western Blot assay, respectively. Then, dual-luciferase assay, chromatin immunoprecipitation and RNA immunoprecipitation were used to determine the interaction between LncRNA-MEG3 and NF-κB. RESULTS Our study found that propofol significantly reduced LncRNA-MEG3 expression, which was elevated in LPS-stimulated astrocytes. Moreover, both propofol and LncRNA-MEG3 knockdown remarkably alleviated LPS-induced cytotoxicity by suppressing expressions and release of pro-inflammatory cytokines. Loss of LncRNA-MEG3 notably suppressed the NF-κB activity and its phosphorylated activation. Additionally, it was also observed that LncRNA-MEG3 could bind nuclear p65/p50, and promote the binding of NF-κB to IL-6 and TNF-α promoters in the nucleus, subsequently stimulating the production of inflammatory cytokines in LPS-treated astrocytes. Furthermore, a specific inhibitor of NF-κB, PDTC rescued astrocytes from LPS exposure without affecting LncRNA-MEG3 expression. CONCLUSION These findings demonstrated that LncRNA-MEG3 acted as a positive regulator of NF-κB, mediated the neuroprotection of propofol in LPS-triggered astrocytes injury.
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Affiliation(s)
- Fan Zhang
- Department of Anesthesiology, Xiangya Hospital of Central South University, Changsha, 410008, Hunan Province, China
| | - Zhihua Wang
- Department of Anesthesiology, Hainan General Hospital, Haikou, Hainan Province, China
| | - Bei Sun
- Department of Anesthesiology, Xiangya Hospital of Central South University, Changsha, 410008, Hunan Province, China
| | - Yan Huang
- Department of Anesthesiology, Xiangya Hospital of Central South University, Changsha, 410008, Hunan Province, China
| | - Cheng Chen
- Department of Anesthesiology, Xiangya Hospital of Central South University, Changsha, 410008, Hunan Province, China
| | - Jie Hu
- Department of Anesthesiology, Xiangya Hospital of Central South University, Changsha, 410008, Hunan Province, China
| | - Longyan Li
- Department of Anesthesiology, Xiangya Hospital of Central South University, Changsha, 410008, Hunan Province, China
| | - Pingping Xia
- Department of Anesthesiology, Xiangya Hospital of Central South University, Changsha, 410008, Hunan Province, China
| | - Zhi Ye
- Department of Anesthesiology, Xiangya Hospital of Central South University, Changsha, 410008, Hunan Province, China
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Cho YE, Lee H, Bae HR, Kim H, Yun S, Vorn R, Cashion A, Rucker MJ, Afzal M, Latour L, Gill J. Circulating immune cell landscape in patients who had mild ischaemic stroke. Stroke Vasc Neurol 2022; 7:319-327. [PMID: 35264400 PMCID: PMC9453838 DOI: 10.1136/svn-2021-001224] [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: 07/08/2021] [Accepted: 01/05/2022] [Indexed: 11/03/2022] Open
Abstract
INTRODUCTION Patients who had a mild ischaemic stroke who present with subtle or resolving symptoms sometimes go undiagnosed, are excluded from treatment and in some cases clinically worsen. Circulating immune cells are potential biomarkers that can assist with diagnosis in ischaemic stroke. Understanding the transcriptomic changes of each cell population caused by ischaemic stroke is critical because they work closely in a complicated relationship. In this study, we investigated peripheral blood mononuclear cells (PBMCs) transcriptomics of patients who had a stroke using a single-cell RNA sequencing to understand peripheral immune response after mild stroke based on the gene expression in an unbiased way. METHODS Transcriptomes of PBMCsfrom 10 patients who had an acute ischaemic stroke within 24 hours after stroke onset were compared with 9 race-matched/age-matched/gender-matched controls. Individual PBMCs were prepared with ddSeqTM (Illumina-BioRad) and sequenced on the Illumina NovaSeq 6000 platform. RESULTS Notable population changes were observed in patients who had a stroke, especially in NK cells and CD14+ monocytes. The number of NK cells was increased, which was further confirmed by flow cytometry. Functional analysis implied that the activity of NK cells also is enhanced in patients who had a stroke. CD14+ monocytes were clustered into two groups; dendritic cell-related CD14+ monocytes and NK cell-related CD14+ monocytes. We found CD14+ monocyte subclusters were dramatically reduced in patients who had a stroke. DISCUSSION This is the first study demonstrating the increased number of NK cells and new monocyte subclusters of mild ischaemic stroke based on the transcriptomic analysis. Our findings provide the dynamics of circulating immune response that could assist diagnosis and potential therapeutic development of mild ischaemic stroke.
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Affiliation(s)
- Young-Eun Cho
- College of Nursing, The University of Iowa, Iowa City, Iowa, USA .,National Institute of Nursing Research, National Institutes of Health, Bethesda, Maryland, USA
| | - Hyangkyu Lee
- Mo-Im Kim Nursing Research Institute, College of Nursing, Yonsei University, Seoul, South Korea
| | - Heekyong R Bae
- National Eye Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Hyungsuk Kim
- National Institute of Nursing Research, National Institutes of Health, Bethesda, Maryland, USA
| | - Sijung Yun
- Predictiv Care, Inc, Sunnyvale, California, USA
| | - Rany Vorn
- School of Nursing, Johns Hopkins University, Baltimore, Maryland, USA
| | - Ann Cashion
- College of Nursing, University of Tennessee Health Science Center, Memphis, Tennessee, USA
| | | | - Mariam Afzal
- National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland, USA
| | - Lawrence Latour
- National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland, USA
| | - Jessica Gill
- School of Nursing, Johns Hopkins University, Baltimore, Maryland, USA
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Xu T, Wang X, Ma C, Ji J, Xu W, Shao Q, Liao X, Li Y, Cheng F, Wang Q. Identification of potential regulating effect of baicalin on NFκB/CCL2/CCR2 signaling pathway in rats with cerebral ischemia by antibody-based array and bioinformatics analysis. JOURNAL OF ETHNOPHARMACOLOGY 2022; 284:114773. [PMID: 34699947 DOI: 10.1016/j.jep.2021.114773] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 10/10/2021] [Accepted: 10/21/2021] [Indexed: 06/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Baicalin is one of the major bioactive compounds extracted from the root of Scutellaria baicalensis Georgi, which was used to treat cerebral ischemia for thounds of years. However, its biological mechanisms remains to be further explored. AIM OF THE REVIEW This study aims to identify potential biological mechanisms of baicalin against cerebral ischemia combining antibody-based array and bioinformatics analysis. METHODS A rat model of middle cerebral artery occlusion (MCAO) was constructed. Sprague-Dawley rats were randomly divided into three groups: control group, ischemic model group, and baicalin 100 mg/kg treatment group respectively. Bederson score and 2, 3, 5-triphenyl tetrazolium chloride (TTC) staining were examined to evaluate the pharmacodynamics of baicalin treatment. Antibody-based array technology, enzyme linked immunosorbent assay (ELISA), western-blot, molecular docking, transcription factor perdiction, hematoxylin and eosin (H&E), and immunofluorescence staining were used to study the regulation of baicalin on inflammatory response after cerebral ischemia in vivo. LPS-induced RAW 264.7 macrophage inflammation model was prepared to observe the anti-inflammatory effect of baicalin in vitro. RESULTS Baicalin (100 mg/kg) reduced neurological injury score, cerebral infarction volume, and necrotic cells in MCAO rats. Baicalin inhibited the expression of CCL2, and reduced the phosphorylation levels of p65, IκBα protein and down-regulated level of CCR2. Besides, baicalin could bond to CCR2 directly, which prevented CCL2 from binding to CCR2. Furthermore, baicalin down-regulated the number of monocytes in the peripheral blood and improved the spleen index post-cerebral ischemia. In vitro, baicalin significantly inhibited the secretion of NO, IL6, TNFα, and CCL2 in macrophages and promoted the secretion of IL13, IFNG, and IL1a. CONCLUSIONS Baicalin inhibited cerebral ischemia-induced activation of the NFκB/CCL2/CCR2 pathway with multiple target effect. These data promote the therapeutic utilization of baicalin in preventing cerebral ischemia clinically.
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Affiliation(s)
- Tian Xu
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China.
| | - Xueqian Wang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China.
| | - Chongyang Ma
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China.
| | - Jing Ji
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China.
| | - Wenxiu Xu
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China.
| | - Qi Shao
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China.
| | - Xuejing Liao
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China.
| | - Ying Li
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China.
| | - Fafeng Cheng
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China.
| | - Qingguo Wang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China.
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Sarmah D, Datta A, Kaur H, Kalia K, Borah A, Rodriguez AM, Yavagal DR, Bhattacharya P. Sirtuin-1 - Mediated NF-κB Pathway Modulation to Mitigate Inflammasome Signaling and Cellular Apoptosis is One of the Neuroprotective Effects of Intra-arterial Mesenchymal Stem Cell Therapy Following Ischemic Stroke. Stem Cell Rev Rep 2022; 18:821-838. [PMID: 35112234 DOI: 10.1007/s12015-021-10315-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/02/2021] [Indexed: 12/14/2022]
Abstract
AIM Stroke results in long term serious disability that affect millions across the globe. Several clinical and preclinical studies have reinforced the therapeutic use of stem cells in stroke patients to enhance their quality of life. Previous studies from our lab have demonstrated that 1*105 allogeneic bone marrow-derived mesenchymal stem cells (BM-MSCs) when given intraarterially (IA) render neuroprotection by modulating the expression of inflammasomes. Sirtuins are a class of important deacylases having a significant role in cellular functioning. Sirtuin-1 (SIRT-1) is an important enzyme essential for regulating cellular metabolism, which is reduced following an ischemic episode. The present study aims to unviel the role of MSCs in regulating the brain SIRT-1 levels following stroke and the involvement of SIRT-1 in regulating inflammasome signaling to reduce cellular apoptosis towards rendering neuroprotection. MATERIALS AND METHODS 6 h post-reversible middle cerebral artery occlusion (MCAo), ovariectomized Sprague Dawley (SD) rats were infused intraarterially with 1*105 MSCs. 24 h after MCAo animals were examined for functional and behavioral outcomes. Brains were collected for assessing size of infarct and neuronal morphology. Molecular and immunofluroscence studies were also performed for assessing changes in gene and protein expressions. Extent of apoptosis was also determined in different groups. Inhibition study with SIRT-1 specific inhibitor EX-527 was also performed. RESULTS A reduction in infarct size and improvement in motor functional and behavioral outcomes following infusion of MSCs IA at 6 h post-stroke was observed. Increase in average neuronal density and neuronal length was also seen. Increased expression of SIRT-1, BDNF and concomitant reduction in the expression of different inflammatory and apoptotic markers in the brain cortical regions were observed following MSCs treatment. CONCLUSION Our study provides a preliminary evidence that post-stroke IA MSCs therapy regulates SIRT-1 to modulate NF-κB pathway to mitigate inflammasome signaling and cellular apoptosis. This study using IA approach for administering MSCs is highly relevant clinically. Our study is the first to report that neuroprotective effects of IA MSCs in rodent focal ischemia is mediated by SIRT-1 regulation of inflammasome signaling.
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Affiliation(s)
- Deepaneeta Sarmah
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, 382355, Gujarat, India
| | - Aishika Datta
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, 382355, Gujarat, India
| | - Harpreet Kaur
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, 382355, Gujarat, India
| | - Kiran Kalia
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, 382355, Gujarat, India
| | - Anupom Borah
- Cellular and Molecular Neurobiology Laboratory, Department of Life Science and Bioinformatics, Assam University, Silchar, Assam, India
| | | | - Dileep R Yavagal
- Department of Neurology and Neurosurgery, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Pallab Bhattacharya
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, 382355, Gujarat, India.
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Effects of Tai Chi on biomarkers and their implication to neurorehabilitation – a systemic review. Eur J Integr Med 2022. [DOI: 10.1016/j.eujim.2021.101391] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Li Y, Lin M, Lin P, Xia N, Li X, Lin L, Yang Y. Maternal High-Fat Diet Alters the Characteristics of Astrocytes and Worsens the Outcome of Stroke in Rat Offspring, Which Improves After FGF21 Administration. Front Cell Dev Biol 2022; 9:731698. [PMID: 35096806 PMCID: PMC8793739 DOI: 10.3389/fcell.2021.731698] [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: 06/28/2021] [Accepted: 12/13/2021] [Indexed: 12/01/2022] Open
Abstract
Background: Maternal high-fat diet (MHFD) has been shown to increase susceptibility to neurological disease in later offspring, but the underlying mechanism is not clear. Fibroblast growth factor 21 (FGF21) has been reported to have a neuroprotective effect in stroke, but its mechanism of action remains unknown. In this study, we investigated the mechanism of the effect of MHFD on stroke in offspring in adulthood and the mechanism by which FGF21 acts on stroke and restores neurological function. Methods: We performed transcriptome sequencing analysis on D21 neonatal rats. Bodyweight and blood indicators were recorded in the adult rats after MHFD. FGF21 was administered 7 h after photochemical modeling twice a day for three consecutive days. Results: We found numerous mRNA changes between the MHFD group and a normal maternal normal diet (MND) group at D21, including genes related to astrocyte and PI3K/Akt pathways. The body weight, blood glucose, and triglycerides of the MHFD offspring were higher, ischemic lesions were larger, the number of activated astrocytes was lower, and the neurological function score was worse than that of the MND group. After FGF21 administration, WB and qPCR analyses showed that astrocytes and the PI3K/Akt pathway were upregulated, while NF-κB and inflammatory cytokines expression were inhibited in stroke and peri-stroke regions. Conclusion: Taken together, we conclude that MHFD alters the characteristics of astrocytes and other transcriptome changes in their offspring, leading to a worse prognosis of stroke, while FGF21 plays a neuroprotective role by inhibiting NF-κB and inflammatory factors and activating the PI3K/Akt pathway and activating more astrocytes in the MND group than the MHFD group.
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Affiliation(s)
- Yanxuan Li
- Department of Radiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.,School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Mengqi Lin
- Department of Radiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Ping Lin
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Nengzhi Xia
- Department of Radiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Xiaokun Li
- Department of Radiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.,School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Li Lin
- Department of Radiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.,School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Yunjun Yang
- Department of Radiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
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Dehqanizadeh B, Mohammadi ZF, Kalani AHT, Mirghani SJ. Effect of Early Exercise on Inflammatory Parameters and Apoptosis in CA1 Area of the Hippocampus Following Cerebral Ischemia-reperfusion in Rats. Brain Res Bull 2022; 182:102-110. [DOI: 10.1016/j.brainresbull.2022.02.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 02/11/2022] [Accepted: 02/15/2022] [Indexed: 12/28/2022]
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Geng X, Gao J, Wehbe A, Li F, Chaudhry N, Peng C, Ding Y. Reperfusion and reperfusion injury after ischemic stroke. ENVIRONMENTAL DISEASE 2022. [DOI: 10.4103/ed.ed_12_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Rubin E, Pippione AC, Boyko M, Einaudi G, Sainas S, Collino M, Cifani C, Lolli ML, Abu-Freha N, Kaplanski J, Boschi D, Azab AN. A New NF-κB Inhibitor, MEDS-23, Reduces the Severity of Adverse Post-Ischemic Stroke Outcomes in Rats. Brain Sci 2021; 12:brainsci12010035. [PMID: 35053779 PMCID: PMC8773493 DOI: 10.3390/brainsci12010035] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 12/22/2021] [Accepted: 12/24/2021] [Indexed: 11/16/2022] Open
Abstract
Aim: Nuclear factor kappa B (NF-κB) is known to play an important role in the inflammatory process which takes place after ischemic stroke. The major objective of the present study was to examine the effects of MEDS-23, a potent inhibitor of NF-κB, on clinical outcomes and brain inflammatory markers in post-ischemic stroke rats. Main methods: Initially, a Toxicity Experiment was performed to determine the appropriate dose of MEDS-23 for use in animals, as MEDS-23 was analyzed in vivo for the first time. We used the middle cerebral artery occlusion (MCAO) model for inducing ischemic stroke in rats. The effects of MEDS-23 (at 10 mg/kg, ip) on post-stroke outcomes (brain inflammation, fever, neurological deficits, mortality, and depression- and anxiety-like behaviours) was tested in several efficacy experiments. Key findings: MEDS-23 was found to be safe and significantly reduced the severity of some adverse post-stroke outcomes such as fever and neurological deficits. Moreover, MEDS-23 significantly decreased prostaglandin E2 levels in the hypothalamus and hippocampus of post-stroke rats, but did not prominently alter the levels of interleukin-6 and tumor necrosis factor-α. Significance: These results suggest that NF-κB inhibition is a potential therapeutic strategy for the treatment of ischemic stroke.
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Affiliation(s)
- Elina Rubin
- Department of Clinical Biochemistry and Pharmacology, Ben-Gurion University of the Negev, P.O. Box 653, Beer-Sheva 8410501, Israel; (E.R.); (J.K.)
| | - Agnese C. Pippione
- Department of Drug Science and Technology, University of Turin, 10125 Turin, Italy; (A.C.P.); (S.S.); (M.L.L.); (D.B.)
| | - Matthew Boyko
- Department of Anesthesiology and Critical Care, Soroka University Medical Center, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel;
| | - Giacomo Einaudi
- Pharmacology Unit, School of Pharmacy, University of Camerino, 62032 Camerino, Italy; (G.E.); (C.C.)
| | - Stefano Sainas
- Department of Drug Science and Technology, University of Turin, 10125 Turin, Italy; (A.C.P.); (S.S.); (M.L.L.); (D.B.)
| | - Massimo Collino
- Department of Neuroscience “Rita Levi Montalcini”, University of Turin, 10125 Turin, Italy;
| | - Carlo Cifani
- Pharmacology Unit, School of Pharmacy, University of Camerino, 62032 Camerino, Italy; (G.E.); (C.C.)
| | - Marco L. Lolli
- Department of Drug Science and Technology, University of Turin, 10125 Turin, Italy; (A.C.P.); (S.S.); (M.L.L.); (D.B.)
| | - Naim Abu-Freha
- Institute of Gastroenterology and Hepatology, Soroka University Medical Center, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel;
| | - Jacob Kaplanski
- Department of Clinical Biochemistry and Pharmacology, Ben-Gurion University of the Negev, P.O. Box 653, Beer-Sheva 8410501, Israel; (E.R.); (J.K.)
| | - Donatella Boschi
- Department of Drug Science and Technology, University of Turin, 10125 Turin, Italy; (A.C.P.); (S.S.); (M.L.L.); (D.B.)
| | - Abed N. Azab
- Department of Clinical Biochemistry and Pharmacology, Ben-Gurion University of the Negev, P.O. Box 653, Beer-Sheva 8410501, Israel; (E.R.); (J.K.)
- Department of Nursing, Ben-Gurion University of the Negev, P.O. Box 653, Beer-Sheva 8410501, Israel
- Correspondence:
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New Drug Targets to Prevent Death Due to Stroke: A Review Based on Results of Protein-Protein Interaction Network, Enrichment, and Annotation Analyses. Int J Mol Sci 2021; 22:ijms222212108. [PMID: 34829993 PMCID: PMC8619767 DOI: 10.3390/ijms222212108] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 10/30/2021] [Accepted: 11/03/2021] [Indexed: 02/07/2023] Open
Abstract
This study used established biomarkers of death from ischemic stroke (IS) versus stroke survival to perform network, enrichment, and annotation analyses. Protein-protein interaction (PPI) network analysis revealed that the backbone of the highly connective network of IS death consisted of IL6, ALB, TNF, SERPINE1, VWF, VCAM1, TGFB1, and SELE. Cluster analysis revealed immune and hemostasis subnetworks, which were strongly interconnected through the major switches ALB and VWF. Enrichment analysis revealed that the PPI immune subnetwork of death due to IS was highly associated with TLR2/4, TNF, JAK-STAT, NOD, IL10, IL13, IL4, and TGF-β1/SMAD pathways. The top biological and molecular functions and pathways enriched in the hemostasis network of death due to IS were platelet degranulation and activation, the intrinsic pathway of fibrin clot formation, the urokinase-type plasminogen activator pathway, post-translational protein phosphorylation, integrin cell-surface interactions, and the proteoglycan-integrin extracellular matrix complex (ECM). Regulation Explorer analysis of transcriptional factors shows: (a) that NFKB1, RELA and SP1 were the major regulating actors of the PPI network; and (b) hsa-mir-26-5p and hsa-16-5p were the major regulating microRNA actors. In conclusion, prevention of death due to IS should consider that current IS treatments may be improved by targeting VWF, the proteoglycan-integrin-ECM complex, TGF-β1/SMAD, NF-κB/RELA and SP1.
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Yan Z, Deng Y, Zou Y, Liu S, Li K, Yang J, Guo X, He R, Zheng W, Xie H. Analysis of regulatory effect of miR-149-5p on Sphingosine-1-phosphate receptor 2 of pericytes and its neuroprotective molecular mechanism after acute cerebral ischemia reperfusion in rats. Bioengineered 2021; 12:3348-3357. [PMID: 34224319 PMCID: PMC8806611 DOI: 10.1080/21655979.2021.1947167] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
To investigate the effect of miR-149-5p on sphingosine-1-phosphate receptor 2 (S1PR2) expression level and contents of matrix metalloproteinase (MMP-9) and superoxide dismutase (SOD) in the pericytes after acute cerebral ischemia reperfusion in rats, so as to clarify the neuroprotective molecular mechanism induced by miR-149-5p and provide references for the treatment of neurological diseases, 60 male SD rats aged 7-8 weeks were selected and divided randomly into test group (establishing middle cerebral artery occlusion (MCAO) model) and control group (no modeling). Rat pericytes and peripheral cerebral infarction tissues were collected 12 h, 1 d, 3 d, 5 d, and 7 d after MCAO modeling, respectively. The pericytes were identified by immunofluorescence assay (IFA) and transfected with miR-149-5p. Fluorescence quantitative PCR (FQPCR) and Western blot were adopted to detect S1PR2 expression level. The expression of S1PR2 in MCAO model rats was detected by IFA. Immunohistochemistry (IHC) and quantitative real-time PCR (qRT-PCR) were used to detect the changes of MMP9 protein and mRNA levels of SOD1, SOD2, and SOD3 in brain tissue. The results showed that mRNA level and protein expression level of S1PR2 in the test group were higher than those in the control group three days after MCAO modeling (P < 0.05); the expression of S1PR2 increased 12 h after MCAO modeling and returned to the normal level on the 5th day, and the content of MMP9 protein in brain tissue of the test group was significantly lower than that of the control group (P < 0.05); the mRNA levels and SODs activity of SOD1, SOD2, and SOD3 in the test group were higher than those in the control group (P < 0.05). Therefore, miR-149-5p played a neuroprotective role by regulating S1PR2 to change the expression levels of SODS and MMP9.
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Affiliation(s)
- Zhenxing Yan
- Department of Neurology, Zhujiang Hospital, Southern Medical University, Guangzhou, PR China
| | - Yiting Deng
- Second Clinical College, Southern Medical University, Guangzhou, PR China
| | - Yang Zou
- Second School of Clinical Medicine, Southern Medical University, Guangzhou, PR China
| | - Siqin Liu
- Second School of Clinical Medicine, Southern Medical University, Guangzhou, PR China
| | - Kaifeng Li
- Shenzhen Hospital, Southern Medical University, Guangzhou, PR China
| | - Juan Yang
- Department of Neurology, Zhujiang Hospital, Southern Medical University, Guangzhou, PR China
| | - Xihua Guo
- Department of Neurology, Zhujiang Hospital, Southern Medical University, Guangzhou, PR China
| | - Rongni He
- Department of Neurology, Zhujiang Hospital, Southern Medical University, Guangzhou, PR China
| | - Wenxia Zheng
- Department of Neurology, Shunde Hospital, Southern Medical University, Foshan, PR China
| | - Huifang Xie
- Department of Neurology, Zhujiang Hospital, Southern Medical University, Guangzhou, PR China
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Yousefi-Manesh H, Dehpour AR, Shirooie S, Bagheri F, Farrokhi V, Mousavi SE, Ricciutelli M, Cappellacci L, López V, Maggi F, Petrelli R. Isofuranodiene, a Natural Sesquiterpene Isolated from Wild Celery ( Smyrnium olusatrum L.), Protects Rats against Acute Ischemic Stroke. Pharmaceuticals (Basel) 2021; 14:ph14040344. [PMID: 33918587 PMCID: PMC8069533 DOI: 10.3390/ph14040344] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 04/05/2021] [Accepted: 04/07/2021] [Indexed: 01/02/2023] Open
Abstract
The myrrh-like furanosesquiterpene isofuranodiene (IFD) is the main constituent of wild celery (Smyrnium olusatrum L., Apiaceae), an overlooked vegetable that was cultivated during the Roman Empire. In the present study, we investigated the protective effects of IFD pre-treatment against oxidative stress and inflammatory response in an animal model of ischemic stroke. IFD was isolated by the crystallization of Smyrnium olusatrum essential oil, and its structure and purity were confirmed by NMR and HPLC analyses. Acute pre-treatment of IFD (10 mg/kg i.p.) significantly reduced the levels of the inflammatory cytokines IL-1β and TNF-α, the expression of pNF-κB/NF-κB, and the lipid peroxidation indicator MDA. Finally, IFD boosted a faster recovery and better scores in grid-walking and modified neurological severity scores (mNSS) tests. Taken together, these findings indicate IFD as a promising lead compound for the discovery of new treatments of brain ischemia.
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Affiliation(s)
- Hasan Yousefi-Manesh
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran 1417613151, Iran; (H.Y.-M.); (A.R.D.); (F.B.); (V.F.); (S.E.M.)
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran 1417613151, Iran
| | - Ahmad Reza Dehpour
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran 1417613151, Iran; (H.Y.-M.); (A.R.D.); (F.B.); (V.F.); (S.E.M.)
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran 1417613151, Iran
| | - Samira Shirooie
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah 6734667149, Iran
- Correspondence: (S.S.); (F.M.)
| | - Fariba Bagheri
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran 1417613151, Iran; (H.Y.-M.); (A.R.D.); (F.B.); (V.F.); (S.E.M.)
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran 1417613151, Iran
| | - Vida Farrokhi
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran 1417613151, Iran; (H.Y.-M.); (A.R.D.); (F.B.); (V.F.); (S.E.M.)
- Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran 1417613151, Iran
| | - Seyyedeh Elaheh Mousavi
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran 1417613151, Iran; (H.Y.-M.); (A.R.D.); (F.B.); (V.F.); (S.E.M.)
| | - Massimo Ricciutelli
- School of Pharmacy, University of Camerino, 62032 Camerino, Italy; (M.R.); (L.C.); (R.P.)
| | - Loredana Cappellacci
- School of Pharmacy, University of Camerino, 62032 Camerino, Italy; (M.R.); (L.C.); (R.P.)
| | - Víctor López
- Department of Pharmacy, Faculty of Health Sciences, Universidad San Jorge, Villanueva de Gállego, 50830 Zaragoza, Spain;
| | - Filippo Maggi
- School of Pharmacy, University of Camerino, 62032 Camerino, Italy; (M.R.); (L.C.); (R.P.)
- Correspondence: (S.S.); (F.M.)
| | - Riccardo Petrelli
- School of Pharmacy, University of Camerino, 62032 Camerino, Italy; (M.R.); (L.C.); (R.P.)
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Chen Y, Wu J, Zhu J, Yang G, Tian J, Zhao Y, Wang Y. Artesunate Provides Neuroprotection against Cerebral Ischemia-Reperfusion Injury via the TLR-4/NF-κB Pathway in Rats. Biol Pharm Bull 2021; 44:350-356. [PMID: 33390425 DOI: 10.1248/bpb.b20-00604] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Inflammation has an important role in ischemia-reperfusion (I/R) injury. Artesunate (ART) has anti-microbial and anti-inflammatory pharmacological activities, and it is used for various types of serious malaria, including cerebral malaria. ART maintains a high concentration in the brain but little is known about the neuroprotective effect of ART against brain I/R injury. We studied the neuroprotection of ART against brain I/R injury and its underlying mechanism. In this study, rats were subjected to middle cerebral artery occlusion (MCAO) for 2 h. After 24 h of reperfusion, neurological deficits, cerebrum water content, infarct volume, hematoxylin-eosin (H&E)-staining, myeloperoxidase (MPO) activity, and proinflammatory cytokine levels were measured. Administration of 20, 40, 80, and 160 mg/kg ART intraperitoneally (i.p.) 10 min after MCAO significantly decreased brain water content and improved neurological deficits in a dose-dependent manner. An 80 mg/kg dosage was optimal. ART significantly reduced infarct volume, suppressed MPO activity and diminished the expressions of toll-like receptor (TLR)-4, MyD88, nuclear factor-κB (NF-κB), tumor necrosis factor (TNF)-α, and interleukin (IL)-6 in the area of the ischemic cortex. The neuroprotective action of ART against focal cerebral I/R injury might be due to the attenuation of inflammation through the TLR-4/NF-κB pathway.
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Affiliation(s)
- Yanlin Chen
- Institute for Cancer Research, School of Basic Medical Science, Health Science Center of Xi'an Jiaotong University
- Department of Pathology, Jinshan Hospital, The First Affiliated Hospital of Chongqing Medical University
| | - Jingxian Wu
- Department of Pathology, Chongqing Medical University
| | - Jin Zhu
- Department of Pathology, Chongqing Medical University
| | - Guoan Yang
- Institute for Cancer Research, School of Basic Medical Science, Health Science Center of Xi'an Jiaotong University
| | - Junying Tian
- Department of Foreign Language, Chongqing Medical University
| | - Yong Zhao
- Department of Pathology, Chongqing Medical University
| | - Yili Wang
- Institute for Cancer Research, School of Basic Medical Science, Health Science Center of Xi'an Jiaotong University
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Qu X, Zhu K, Li Z, Zhang D, Hou L. The Alteration of M6A-Tagged Transcript Profiles in the Retina of Rats After Traumatic Optic Neuropathy. Front Genet 2021; 12:628841. [PMID: 33664770 PMCID: PMC7920991 DOI: 10.3389/fgene.2021.628841] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 01/25/2021] [Indexed: 12/27/2022] Open
Abstract
Messager RNA (mRNA) can be modified in a variety of ways, among which the modification of N6-methyladenosine (m6A) is one of the most common ones. Recent studies have found that the m6A modification in mRNA could functionally regulate the splicing, localization, translation, and stability of mRNA, which might be closely related to multiple diseases. However, the roles of m6A modification in traumatic optic neuropathy (TON) are unknown. Herein, we detected the expression of m6A-related genes via quantitative real-time PCR (qRT-PCR) and performed methylated RNA immunoprecipitation sequencing (MeRIP-seq) as well as RNA-sequencing to analyze the alteration profiles of m6A modification after TON. The results showed that the expression of m6A-related genes (METTL3, WTAP, FTO, and ALKBH5) were all upregulated after TON. In all, 2,810 m6A peaks were differentially upregulated and 689 m6A peaks were downregulated. In addition, the hypermethylated and hypomethylated profiles of mRNA transcripts were also identified. To sum up, our study revealed the differentially expressed m6A modification in the early stage of TON, which may provide novel insights into the mechanism and treatment of TON.
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Affiliation(s)
- Xiaolin Qu
- Department of Neurosurgery, Changzheng Hospital, Naval Medical University, Shanghai, China
| | - Kaixin Zhu
- Department of Neurosurgery, Changzheng Hospital, Naval Medical University, Shanghai, China
| | - Zhenxing Li
- Department of Neurosurgery, Changzheng Hospital, Naval Medical University, Shanghai, China.,Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - Danfeng Zhang
- Department of Neurosurgery, Changzheng Hospital, Naval Medical University, Shanghai, China
| | - Lijun Hou
- Department of Neurosurgery, Changzheng Hospital, Naval Medical University, Shanghai, China
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Kim E, Cho S. CNS and peripheral immunity in cerebral ischemia: partition and interaction. Exp Neurol 2021; 335:113508. [PMID: 33065078 PMCID: PMC7750306 DOI: 10.1016/j.expneurol.2020.113508] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 09/28/2020] [Accepted: 10/08/2020] [Indexed: 02/07/2023]
Abstract
Stroke elicits excessive immune activation in the injured brain tissue. This well-recognized neural inflammation in the brain is not just an intrinsic organ response but also a result of additional intricate interactions between infiltrating peripheral immune cells and the resident immune cells in the affected areas. Given that there is a finite number of immune cells in the organism at the time of stroke, the partitioned immune systems of the central nervous system (CNS) and periphery must appropriately distribute the limited pool of immune cells between the two domains, mounting a necessary post-stroke inflammatory response by supplying a sufficient number of immune cells into the brain while maintaining peripheral immunity. Stroke pathophysiology has mainly been neurocentric in focus, but understanding the distinct roles of the CNS and peripheral immunity in their concerted action against ischemic insults is crucial. This review will discuss stroke-induced influences of the peripheral immune system on CNS injury/repair and of neural inflammation on peripheral immunity, and how comorbidity influences each.
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Affiliation(s)
- Eunhee Kim
- Vivian L. Smith Department of Neurosurgery at University of Texas Health Science Center at Houston, Houston, TX, United States of America
| | - Sunghee Cho
- Burke Neurological Institute, White Plains, NY, United States of America; Feil Brain Mind Research Institute, Weill Cornell Medicine, New York, NY, United States of America.
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YTHDC1 mitigates ischemic stroke by promoting Akt phosphorylation through destabilizing PTEN mRNA. Cell Death Dis 2020; 11:977. [PMID: 33188203 PMCID: PMC7666223 DOI: 10.1038/s41419-020-03186-2] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 10/02/2020] [Accepted: 10/05/2020] [Indexed: 12/14/2022]
Abstract
YTH Domain Containing 1 (YTHDC1) is one of the m6A readers that is essential for oocyte development and tumor progression. The role of YTHDC1 in neuronal survival and ischemic stroke is unknown. Here, we found that YTHDC1 was unregulated in the early phase of ischemic stroke. Knockdown of YTHDC1 exacerbated ischemic brain injury and overexpression of YTHDC1 protected rats against brain injury. Mechanistically, YTHDC1 promoted PTEN mRNA degradation to increase Akt phosphorylation, thus facilitating neuronal survival in particular after ischemia. These data identify YTHDC1 as a novel regulator of neuronal survival and modulating m6A reader YTHDC1 may provide a potential therapeutic target for ischemic stroke.
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Fu Z, Wang J, Wang J. Advantages of Applying Artificial Intelligent System to Medical Neurology (Preprint). JMIR Med Inform 2020. [DOI: 10.2196/21058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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