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Fagerli E, Jackson CW, Escobar I, Ferrier FJ, Perez Lao EJ, Saul I, Gomez J, Dave KR, Bracko O, Perez-Pinzon MA. Resveratrol Mitigates Cognitive Impairments and Cholinergic Cell Loss in the Medial Septum in a Mouse Model of Gradual Cerebral Hypoperfusion. Antioxidants (Basel) 2024; 13:984. [PMID: 39199230 PMCID: PMC11351397 DOI: 10.3390/antiox13080984] [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: 07/11/2024] [Revised: 08/03/2024] [Accepted: 08/06/2024] [Indexed: 09/01/2024] Open
Abstract
Vascular cognitive impairment and dementia (VCID) is the second leading cause of dementia. There is currently no effective treatment for VCID. Resveratrol (RSV) is considered an antioxidant; however, our group has observed pleiotropic effects in stroke paradigms, suggesting more effects may contribute to mechanistic changes beyond antioxidative properties. The main goal of this study was to investigate if administering RSV twice a week could alleviate cognitive declines following the induction of a VCID model. Additionally, our aim was to further describe whether this treatment regimen could decrease cell death in brain areas vulnerable to changes in cerebral blood flow, such as the hippocampus and medial septum. We hypothesized RSV treatments in a mouse model of gradual cerebral hypoperfusion protect against cognitive impairment. We utilized gradual bilateral common carotid artery stenosis (GBCCAS) via the surgical implantation of ameroid constrictor devices. RSV treatment was administered on the day of implantation and twice a week thereafter. Cerebral perfusion was measured by laser speckle contrast imaging, and cognitive functions, including the recognition memory, the spatial working memory, and associative learning, were assessed by novel object recognition (NOR), Y-maze testing, and contextual fear conditioning (CFC), respectively. RSV treatment did not alleviate cerebral perfusion deficits but mitigated cognitive deficits in CFC and NOR after GBCCAS. Despite these deficits, no hippocampal pathology was observed; however, cholinergic cell loss in the medial septum was significantly increased after GBCCAS. This cholinergic cell loss was mitigated by RSV. This study describes a novel mechanism by which chronic RSV treatments protect against a VCID-induced cognitive decline through the preservation of cholinergic cell viability to improve memory performance.
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Affiliation(s)
- Eric Fagerli
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratories, University of Miami Leonard M. Miller School of Medicine, Miami, FL 33136, USA; (E.F.); (C.W.J.); (I.E.); (F.J.F.); (E.J.P.L.); (I.S.); (J.G.); (K.R.D.)
- Department of Neurology, University of Miami Leonard M. Miller School of Medicine, Miami, FL 33136, USA;
- Neuroscience Program, University of Miami Leonard M. Miller School of Medicine, Miami, FL 33136, USA
| | - Charles W. Jackson
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratories, University of Miami Leonard M. Miller School of Medicine, Miami, FL 33136, USA; (E.F.); (C.W.J.); (I.E.); (F.J.F.); (E.J.P.L.); (I.S.); (J.G.); (K.R.D.)
- Department of Neurology, University of Miami Leonard M. Miller School of Medicine, Miami, FL 33136, USA;
- Neuroscience Program, University of Miami Leonard M. Miller School of Medicine, Miami, FL 33136, USA
| | - Iris Escobar
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratories, University of Miami Leonard M. Miller School of Medicine, Miami, FL 33136, USA; (E.F.); (C.W.J.); (I.E.); (F.J.F.); (E.J.P.L.); (I.S.); (J.G.); (K.R.D.)
- Department of Neurology, University of Miami Leonard M. Miller School of Medicine, Miami, FL 33136, USA;
- Neuroscience Program, University of Miami Leonard M. Miller School of Medicine, Miami, FL 33136, USA
| | - Fernando J. Ferrier
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratories, University of Miami Leonard M. Miller School of Medicine, Miami, FL 33136, USA; (E.F.); (C.W.J.); (I.E.); (F.J.F.); (E.J.P.L.); (I.S.); (J.G.); (K.R.D.)
- Department of Neurology, University of Miami Leonard M. Miller School of Medicine, Miami, FL 33136, USA;
- Neuroscience Program, University of Miami Leonard M. Miller School of Medicine, Miami, FL 33136, USA
| | - Efrain J. Perez Lao
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratories, University of Miami Leonard M. Miller School of Medicine, Miami, FL 33136, USA; (E.F.); (C.W.J.); (I.E.); (F.J.F.); (E.J.P.L.); (I.S.); (J.G.); (K.R.D.)
- Department of Neurology, University of Miami Leonard M. Miller School of Medicine, Miami, FL 33136, USA;
- Neuroscience Program, University of Miami Leonard M. Miller School of Medicine, Miami, FL 33136, USA
| | - Isabel Saul
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratories, University of Miami Leonard M. Miller School of Medicine, Miami, FL 33136, USA; (E.F.); (C.W.J.); (I.E.); (F.J.F.); (E.J.P.L.); (I.S.); (J.G.); (K.R.D.)
- Department of Neurology, University of Miami Leonard M. Miller School of Medicine, Miami, FL 33136, USA;
| | - Jorge Gomez
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratories, University of Miami Leonard M. Miller School of Medicine, Miami, FL 33136, USA; (E.F.); (C.W.J.); (I.E.); (F.J.F.); (E.J.P.L.); (I.S.); (J.G.); (K.R.D.)
- Department of Neurology, University of Miami Leonard M. Miller School of Medicine, Miami, FL 33136, USA;
| | - Kunjan R. Dave
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratories, University of Miami Leonard M. Miller School of Medicine, Miami, FL 33136, USA; (E.F.); (C.W.J.); (I.E.); (F.J.F.); (E.J.P.L.); (I.S.); (J.G.); (K.R.D.)
- Department of Neurology, University of Miami Leonard M. Miller School of Medicine, Miami, FL 33136, USA;
- Neuroscience Program, University of Miami Leonard M. Miller School of Medicine, Miami, FL 33136, USA
| | - Oliver Bracko
- Department of Neurology, University of Miami Leonard M. Miller School of Medicine, Miami, FL 33136, USA;
- Neuroscience Program, University of Miami Leonard M. Miller School of Medicine, Miami, FL 33136, USA
- Department of Biology, University of Miami, Coral Gables, FL 33146, USA
| | - Miguel A. Perez-Pinzon
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratories, University of Miami Leonard M. Miller School of Medicine, Miami, FL 33136, USA; (E.F.); (C.W.J.); (I.E.); (F.J.F.); (E.J.P.L.); (I.S.); (J.G.); (K.R.D.)
- Department of Neurology, University of Miami Leonard M. Miller School of Medicine, Miami, FL 33136, USA;
- Neuroscience Program, University of Miami Leonard M. Miller School of Medicine, Miami, FL 33136, USA
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Jacquier EF, Kassis A, Marcu D, Contractor N, Hong J, Hu C, Kuehn M, Lenderink C, Rajgopal A. Phytonutrients in the promotion of healthspan: a new perspective. Front Nutr 2024; 11:1409339. [PMID: 39070259 PMCID: PMC11272662 DOI: 10.3389/fnut.2024.1409339] [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: 03/29/2024] [Accepted: 06/12/2024] [Indexed: 07/30/2024] Open
Abstract
Considering a growing, aging population, the need for interventions to improve the healthspan in aging are tantamount. Diet and nutrition are important determinants of the aging trajectory. Plant-based diets that provide bioactive phytonutrients may contribute to offsetting hallmarks of aging and reducing the risk of chronic disease. Researchers now advocate moving toward a positive model of aging which focuses on the preservation of functional abilities, rather than an emphasis on the absence of disease. This narrative review discusses the modulatory effect of nutrition on aging, with an emphasis on promising phytonutrients, and their potential to influence cellular, organ and functional parameters in aging. The literature is discussed against the backdrop of a recent conceptual framework which describes vitality, intrinsic capacity and expressed capacities in aging. This aims to better elucidate the role of phytonutrients on vitality and intrinsic capacity in aging adults. Such a review contributes to this new scientific perspective-namely-how nutrition might help to preserve functional abilities in aging, rather than purely offsetting the risk of chronic disease.
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Affiliation(s)
| | | | - Diana Marcu
- School of Molecular Biosciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom
| | | | - Jina Hong
- Amway Innovation and Science, Ada, MI, United States
| | - Chun Hu
- Amway Innovation and Science, Ada, MI, United States
| | - Marissa Kuehn
- Amway Innovation and Science, Ada, MI, United States
| | | | - Arun Rajgopal
- Amway Innovation and Science, Ada, MI, United States
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Jackson CW, Xu J, Escobar I, Saul I, Fagerli E, Dave KR, Perez-Pinzon MA. Resveratrol Preconditioning Downregulates PARP1 Protein to Alleviate PARP1-Mediated Cell Death Following Cerebral Ischemia. Transl Stroke Res 2024; 15:165-178. [PMID: 36633794 PMCID: PMC10336177 DOI: 10.1007/s12975-022-01119-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 12/20/2022] [Accepted: 12/23/2022] [Indexed: 01/13/2023]
Abstract
Stroke remains a leading cause of mortality; however, available therapeutics are limited. The study of ischemic tolerance, in paradigms such as resveratrol preconditioning (RPC), provides promise for the development of novel prophylactic therapies. The heavily oxidative environment following stroke promotes poly-ADP-ribose polymerase 1 (PARP1)-overactivation and parthanatos, both of which are major contributors to neuronal injury. In this study, we tested the hypothesis that RPC instills ischemic tolerance through decreasing PARP1 overexpression and parthanatos following in vitro and in vivo cerebral ischemia. To test this hypothesis, we utilized rat primary neuronal cultures (PNCs) and middle cerebral artery occlusion (MCAO) in the rat as in vitro and in vivo models, respectively. RPC was administered 2 days preceding ischemic insults. RPC protected PNCs against oxygen and glucose deprivation (OGD)-induced neuronal loss, as well as increases in total PARP1 protein, implying protection against PARP1-overactivation. Twelve hours following OGD, we observed reductions in NAD+/NADH as well as an increase in AIF nuclear translocation, but RPC ameliorated NAD+/NADH loss and blocked AIF nuclear translocation. MCAO in the rat induced AIF nuclear translocation in the ischemic penumbra after 24 h, which was ameliorated with RPC. We tested the hypothesis that RPC's neuroprotection was instilled through long-term downregulation of nuclear PARP1 protein. RPC downregulated nuclear PARP1 protein for at least 6 days in PNCs, likely contributing to RPC's ischemic tolerance. This study describes a novel mechanism by which RPC instills prophylaxis against ischemia-induced PARP1 overexpression and parthanatos, through a long-term reduction of nuclear PARP1 protein.
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Grants
- R01 NS045676 NINDS NIH HHS
- 3R01NS034773, R01NS45676, R01NS054147 NIH HHS
- R01 NS054147 NINDS NIH HHS
- RF1 NS034773 NINDS NIH HHS
- R01 NS097658 NINDS NIH HHS
- R01 NS034773 NINDS NIH HHS
- 3R01NS034773, R01NS45676, R01NS054147 NIH HHS
- 3R01NS034773, R01NS45676, R01NS054147 NIH HHS
- 3R01NS034773, R01NS45676, R01NS054147 NIH HHS
- 3R01NS034773, R01NS45676, R01NS054147 NIH HHS
- 3R01NS034773, R01NS45676, R01NS054147 NIH HHS
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Affiliation(s)
- Charles W Jackson
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratories, University of Miami Leonard M. Miller School of Medicine, Miami, FL, 33136, USA
- Department of Neurology, University of Miami Leonard M. Miller School of Medicine, PO Box 016960, Miami, FL, 33136, USA
- Neuroscience Program, University of Miami Leonard M. Miller School of Medicine, Miami, FL, USA
| | - Jing Xu
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratories, University of Miami Leonard M. Miller School of Medicine, Miami, FL, 33136, USA
- Department of Neurology, University of Miami Leonard M. Miller School of Medicine, PO Box 016960, Miami, FL, 33136, USA
- Neuroscience Program, University of Miami Leonard M. Miller School of Medicine, Miami, FL, USA
| | - Iris Escobar
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratories, University of Miami Leonard M. Miller School of Medicine, Miami, FL, 33136, USA
- Department of Neurology, University of Miami Leonard M. Miller School of Medicine, PO Box 016960, Miami, FL, 33136, USA
- Neuroscience Program, University of Miami Leonard M. Miller School of Medicine, Miami, FL, USA
| | - Isabel Saul
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratories, University of Miami Leonard M. Miller School of Medicine, Miami, FL, 33136, USA
- Department of Neurology, University of Miami Leonard M. Miller School of Medicine, PO Box 016960, Miami, FL, 33136, USA
| | - Eric Fagerli
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratories, University of Miami Leonard M. Miller School of Medicine, Miami, FL, 33136, USA
- Department of Neurology, University of Miami Leonard M. Miller School of Medicine, PO Box 016960, Miami, FL, 33136, USA
- Neuroscience Program, University of Miami Leonard M. Miller School of Medicine, Miami, FL, USA
| | - Kunjan R Dave
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratories, University of Miami Leonard M. Miller School of Medicine, Miami, FL, 33136, USA
- Department of Neurology, University of Miami Leonard M. Miller School of Medicine, PO Box 016960, Miami, FL, 33136, USA
- Neuroscience Program, University of Miami Leonard M. Miller School of Medicine, Miami, FL, USA
| | - Miguel A Perez-Pinzon
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratories, University of Miami Leonard M. Miller School of Medicine, Miami, FL, 33136, USA.
- Department of Neurology, University of Miami Leonard M. Miller School of Medicine, PO Box 016960, Miami, FL, 33136, USA.
- Neuroscience Program, University of Miami Leonard M. Miller School of Medicine, Miami, FL, USA.
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Guo J, Yan YZ, Chen J, Duan Y, Zeng P. Identification of Hub Genes and Pathways of Middle Cerebral Artery Occlusion in Aged Rats Using the Gene Expression Omnibus Database. Crit Rev Immunol 2024; 44:1-12. [PMID: 38505917 DOI: 10.1615/critrevimmunol.2023051702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2024]
Abstract
Stroke remained the leading cause of disability in the world, and the most important non-modifiable risk factor was age. The treatment of stroke for elder patients faced multiple difficulties due to its complicated pathogenesis and mechanism. Therefore, we aimed to identify the potential differentially expressed genes (DEGs) and singnalling pathways for aged people of stroke. To compare the DEGs in the aged rats with or without middle cerebral artery occlusion (MCAO) and to analyse the important genes and the key signaling pathways involved in the development of cerebral ischaemia in aged rats. The Gene Expression Omnibus (GEO) analysis tool was used to analyse the DEGs in the GSE166162 dataset of aged MCAO rats compared with aged sham rats. Differential expression analysis was performed in aged MCAO rats and sham rats using limma. In addition, the 74 DEGs (such as Fam111a, Lcn2, Spp1, Lgals3 and Gpnmb were up-regulated; Egr2, Nr4a3, Arc, Klf4 and Nr4a1 were down-regulated) and potential compounds corresponding to the top 20 core genes in the Protein-Protein Interaction (PPI) network was constructed using the STRING database (version 12.0). Among these 30 compounds, resveratrol, cannabidiol, honokiol, fucoxanthin, oleandrin and tyrosol were significantly enriched. These DEGs were subjected to Gene Ontology (GO) function analysis and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis to determine the most significantly enriched pathway in aged MCAO rats. Moreover, innate immune response, the complement and coagulation cascades signaling pathway, the IL-17 and other signaling pathways were significantly correlated with the aged MCAO rats. Our study indicates that multiple genes and pathological processes involved in the aged people of stroke. The immune response might be the key pathway in the intervention of cerebral infarction in aged people.
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Affiliation(s)
- Jing Guo
- School of Medicine, Jianghan University, Wuhan 430056, China
| | - Yi-Zhi Yan
- Department of Histology and Embryology, School of Basic Medicine, Hengyang Medical College, University of South China, Hengyang 421001, China
| | - Jinglou Chen
- School of Medicine, Jianghan University, Wuhan 430056, China
| | - Yang Duan
- Department of Histology and Embryology, School of Basic Medicine, Hengyang Medical College, University of South China, Hengyang 421001, China
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López-Morales MA, Castelló-Ruiz M, Burguete MC, Hervás D, Pérez-Pinzón MA, Salom JB. Effect and mechanisms of resveratrol in animal models of ischemic stroke: A systematic review and Bayesian meta-analysis. J Cereb Blood Flow Metab 2023; 43:2013-2028. [PMID: 37802493 PMCID: PMC10925864 DOI: 10.1177/0271678x231206236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 08/03/2023] [Accepted: 09/20/2023] [Indexed: 10/10/2023]
Abstract
Resveratrol (RSV) holds promise as cerebroprotective treatment in cerebral ischemia. This systematic review aims to assess the effects and mechanisms of RSV in animal models of ischemic stroke. We searched Medline, Embase and Web of Science to identify 75 and 57 eligible rodent studies for qualitative and quantitative syntheses, respectively. Range of evidence met 10 of 13 STAIR criteria. Median (Q1, Q3) quality score was 7 (5, 8) on the CAMARADES 15-item checklist. Bayesian meta-analysis showed SMD estimates (95% CI) favoring RSV: infarct size (-1.72 [-2.03; -1.41]), edema size (-1.61 [-2.24; -0.98]), BBB impairment (-1.85 [-2.54; -1.19]), neurofunctional impairment (-1.60 [-1.92; -1.29]), and motor performance (1.39 [0.64; 2.08]); and less probably neuronal survival (0.63 [-1.40; 2.48]) and apoptosis (-0.96 [-2.87; 1.02]). Species (rat vs mouse) was associated to a larger benefit. Sensitivity analyses confirmed robustness of the estimates. Reduction of oxidative stress, inflammation, and apoptosis underlie these effects. Our results quantitatively state the beneficial effects of RSV on structural and functional outcomes in rodent stroke models, update the evidence on the mechanisms of action, and provide an exhaustive list of targeted signaling pathways. Current evidence highlights the need for conducting further high-quality preclinical research to better inform clinical research.
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Affiliation(s)
- Mikahela A López-Morales
- Unidad Mixta de Investigación Cerebrovascular, Instituto de Investigación Sanitaria La Fe, Valencia, Spain
| | - María Castelló-Ruiz
- Unidad Mixta de Investigación Cerebrovascular, Instituto de Investigación Sanitaria La Fe, Valencia, Spain
- Departamento de Biología Celular, Biología Funcional y Antropología Física, Universidad de Valencia, Valencia, Spain
| | - María C Burguete
- Unidad Mixta de Investigación Cerebrovascular, Instituto de Investigación Sanitaria La Fe, Valencia, Spain
- Departamento de Fisiología, Universidad de Valencia, Valencia, Spain
| | - David Hervás
- Departamento de Estadística e Investigación Operativa Aplicadas y Calidad, Universitat Politècnica de València, Valencia, Spain
| | - Miguel A Pérez-Pinzón
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratories, Department of Neurology, Miller School of Medicine, University of Miami, Miami, USA
| | - Juan B Salom
- Unidad Mixta de Investigación Cerebrovascular, Instituto de Investigación Sanitaria La Fe, Valencia, Spain
- Departamento de Fisiología, Universidad de Valencia, Valencia, Spain
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Qu W, Ralto KM, Qin T, Cheng Y, Zong W, Luo X, Perez-Pinzon M, Parikh SM, Ayata C. NAD + precursor nutritional supplements sensitize the brain to future ischemic events. J Cereb Blood Flow Metab 2023; 43:37-48. [PMID: 37434361 PMCID: PMC10638999 DOI: 10.1177/0271678x231156500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 11/25/2022] [Accepted: 12/05/2022] [Indexed: 10/09/2023]
Abstract
Nicotinamide adenine dinucleotide (NAD+) is a redox cofactor critical for oxidative phosphorylation. Nicotinamide (NAM) and nicotinamide riboside (NR) are NAD+ precursors widely used as nutritional supplements to augment oxidative phosphorylation. Indeed, NAD+ precursors have been reported to improve outcomes in ischemic stroke when administered as a rescue therapy after stroke onset. However, we have also reported that enhanced reliance on oxidative phosphorylation before ischemia onset might worsen outcomes. To address the paradox, we examined how NAD+ precursors modulate the outcome of middle cerebral artery occlusion in mice, when administered either 20 minutes after reperfusion or daily for three days before ischemia onset. A single post-ischemic dose of NAM or NR indeed improved tissue and neurologic outcomes examined at 72 hours. In contrast, pre-ischemic treatment for three days enlarged the infarcts and worsened neurological deficits. As a possible explanation for the diametric outcomes, a single dose of NAM or NR augmented tissue AMPK, PGC1α, SIRT1, and ATP in both naïve and ischemic brains, while the multiple-dose paradigm failed to do so. Our data suggest that NAD+ precursor supplements may sensitize the brain to subsequent ischemic events, despite their neuroprotective effect when administered after ischemia onset.
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Affiliation(s)
- Wensheng Qu
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, USA
| | - Kenneth M Ralto
- Division of Medicine, University of Massachusetts Chan Medical School, Worcester, MA, USA
- Division of Nephrology and Department of Medicine, Center for Vascular Biology Research, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
| | - Tao Qin
- Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, USA
| | - Yinhong Cheng
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Weifeng Zong
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiang Luo
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Miguel Perez-Pinzon
- Peritz Scheinberg Cerebral Vascular Disease Laboratories, Department of Neurology, The University of Miami Leonard M. Miller School of Medicine, Miami, FL, USA
| | - Samir M Parikh
- Division of Nephrology and Department of Medicine, Center for Vascular Biology Research, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
- Division of Nephrology, Department of Internal Medicine, University of Texas Southwestern Medical School, Dallas, TX, USA
| | - Cenk Ayata
- Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, USA
- Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
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Liu Y, Wang L, Yang G, Chi X, Liang X, Zhang Y. Sirtuins: Promising Therapeutic Targets to Treat Ischemic Stroke. Biomolecules 2023; 13:1210. [PMID: 37627275 PMCID: PMC10452362 DOI: 10.3390/biom13081210] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 07/28/2023] [Accepted: 07/30/2023] [Indexed: 08/27/2023] Open
Abstract
Stroke is a major cause of mortality and disability globally, with ischemic stroke (IS) accounting for over 80% of all stroke cases. The pathological process of IS involves numerous signal molecules, among which are the highly conserved nicotinamide adenine dinucleotide (NAD+)-dependent enzymes known as sirtuins (SIRTs). SIRTs modulate various biological processes, including cell differentiation, energy metabolism, DNA repair, inflammation, and oxidative stress. Importantly, several studies have reported a correlation between SIRTs and IS. This review introduces the general aspects of SIRTs, including their distribution, subcellular location, enzyme activity, and substrate. We also discuss their regulatory roles and potential mechanisms in IS. Finally, we describe the current therapeutic methods based on SIRTs, such as pharmacotherapy, non-pharmacological therapeutic/rehabilitative interventions, epigenetic regulators, potential molecules, and stem cell-derived exosome therapy. The data collected in this study will potentially contribute to both clinical and fundamental research on SIRTs, geared towards developing effective therapeutic candidates for future treatment of IS.
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Affiliation(s)
- Yue Liu
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, China; (Y.L.); (L.W.); (X.C.)
| | - Liuding Wang
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, China; (Y.L.); (L.W.); (X.C.)
| | - Guang Yang
- Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China;
| | - Xiansu Chi
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, China; (Y.L.); (L.W.); (X.C.)
| | - Xiao Liang
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, China; (Y.L.); (L.W.); (X.C.)
| | - Yunling Zhang
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, China; (Y.L.); (L.W.); (X.C.)
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Escobar I, Xu J, Jackson CW, Stegelmann SD, Fagerli EA, Dave KR, Perez-Pinzon MA. Resveratrol Preconditioning Protects Against Ischemia-Induced Synaptic Dysfunction and Cofilin Hyperactivation in the Mouse Hippocampal Slice. Neurotherapeutics 2023; 20:1177-1197. [PMID: 37208551 PMCID: PMC10457274 DOI: 10.1007/s13311-023-01386-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/23/2023] [Indexed: 05/21/2023] Open
Abstract
Perturbations in synaptic function are major determinants of several neurological diseases and have been associated with cognitive impairments after cerebral ischemia (CI). Although the mechanisms underlying CI-induced synaptic dysfunction have not been well defined, evidence suggests that early hyperactivation of the actin-binding protein, cofilin, plays a role. Given that synaptic impairments manifest shortly after CI, prophylactic strategies may offer a better approach to prevent/mitigate synaptic damage following an ischemic event. Our laboratory has previously demonstrated that resveratrol preconditioning (RPC) promotes cerebral ischemic tolerance, with many groups highlighting beneficial effects of resveratrol treatment on synaptic and cognitive function in other neurological conditions. Herein, we hypothesized that RPC would mitigate hippocampal synaptic dysfunction and pathological cofilin hyperactivation in an ex vivo model of ischemia. Various electrophysiological parameters and synaptic-related protein expression changes were measured under normal and ischemic conditions utilizing acute hippocampal slices derived from adult male mice treated with resveratrol (10 mg/kg) or vehicle 48 h prior. Remarkably, RPC significantly increased the latency to anoxic depolarization, decreased cytosolic calcium accumulation, prevented aberrant increases in synaptic transmission, and rescued deficits in long-term potentiation following ischemia. Additionally, RPC upregulated the expression of the activity-regulated cytoskeleton associated protein, Arc, which was partially required for RPC-mediated attenuation of cofilin hyperactivation. Taken together, these findings support a role for RPC in mitigating CI-induced excitotoxicity, synaptic dysfunction, and pathological over-activation of cofilin. Our study provides further insight into mechanisms underlying RPC-mediated neuroprotection against CI and implicates RPC as a promising strategy to preserve synaptic function after ischemia.
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Affiliation(s)
- Iris Escobar
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratories, University of Miami Leonard M. Miller School of Medicine, PO Box 016960, Miami, FL, 33101, USA
- Department of Neurology, University of Miami Leonard M. Miller School of Medicine, PO Box 016960, Miami, FL, 33101, USA
- Neuroscience Program, University of Miami Leonard M. Miller School of Medicine, PO Box 016960, Miami, FL, 33101, USA
| | - Jing Xu
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratories, University of Miami Leonard M. Miller School of Medicine, PO Box 016960, Miami, FL, 33101, USA
- Department of Neurology, University of Miami Leonard M. Miller School of Medicine, PO Box 016960, Miami, FL, 33101, USA
- Neuroscience Program, University of Miami Leonard M. Miller School of Medicine, PO Box 016960, Miami, FL, 33101, USA
| | - Charles W Jackson
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratories, University of Miami Leonard M. Miller School of Medicine, PO Box 016960, Miami, FL, 33101, USA
- Department of Neurology, University of Miami Leonard M. Miller School of Medicine, PO Box 016960, Miami, FL, 33101, USA
- Neuroscience Program, University of Miami Leonard M. Miller School of Medicine, PO Box 016960, Miami, FL, 33101, USA
| | - Samuel D Stegelmann
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratories, University of Miami Leonard M. Miller School of Medicine, PO Box 016960, Miami, FL, 33101, USA
- Department of Neurology, University of Miami Leonard M. Miller School of Medicine, PO Box 016960, Miami, FL, 33101, USA
| | - Eric A Fagerli
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratories, University of Miami Leonard M. Miller School of Medicine, PO Box 016960, Miami, FL, 33101, USA
- Department of Neurology, University of Miami Leonard M. Miller School of Medicine, PO Box 016960, Miami, FL, 33101, USA
- Neuroscience Program, University of Miami Leonard M. Miller School of Medicine, PO Box 016960, Miami, FL, 33101, USA
| | - Kunjan R Dave
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratories, University of Miami Leonard M. Miller School of Medicine, PO Box 016960, Miami, FL, 33101, USA
- Department of Neurology, University of Miami Leonard M. Miller School of Medicine, PO Box 016960, Miami, FL, 33101, USA
- Neuroscience Program, University of Miami Leonard M. Miller School of Medicine, PO Box 016960, Miami, FL, 33101, USA
| | - Miguel A Perez-Pinzon
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratories, University of Miami Leonard M. Miller School of Medicine, PO Box 016960, Miami, FL, 33101, USA.
- Department of Neurology, University of Miami Leonard M. Miller School of Medicine, PO Box 016960, Miami, FL, 33101, USA.
- Neuroscience Program, University of Miami Leonard M. Miller School of Medicine, PO Box 016960, Miami, FL, 33101, USA.
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9
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Al-Khayri JM, Mascarenhas R, Harish HM, Gowda Y, Lakshmaiah VV, Nagella P, Al-Mssallem MQ, Alessa FM, Almaghasla MI, Rezk AAS. Stilbenes, a Versatile Class of Natural Metabolites for Inflammation-An Overview. Molecules 2023; 28:molecules28093786. [PMID: 37175197 PMCID: PMC10180133 DOI: 10.3390/molecules28093786] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 04/21/2023] [Accepted: 04/25/2023] [Indexed: 05/15/2023] Open
Abstract
Stilbenes are polyphenolic allelochemicals synthesized by plants, especially grapes, peanuts, rhubarb, berries, etc., to defend themselves under stressful conditions. They are now exploited in medicine for their antioxidant, anti-proliferative and anti-inflammatory properties. Inflammation is the immune system's response to invading bacteria, toxic chemicals or even nutrient-deprived conditions. It is characterized by the release of cytokines which can wreak havoc on healthy tissues, worsening the disease condition. Stilbenes modulate NF-κB, MAPK and JAK/STAT pathways, and reduce the transcription of inflammatory factors which result in maintenance of homeostatic conditions. Resveratrol, the most studied stilbene, lowers the Michaelis constant of SIRT1, and occupies the substrate binding pocket. Gigantol interferes with the complement system. Besides these, oxyresveratrol, pterostilbene, polydatin, viniferins, etc., are front runners as drug candidates due to their diverse effects from different functional groups that affect bioavailability and molecular interactions. However, they each have different thresholds for toxicity to various cells of the human body, and thus a careful review of their properties must be conducted. In animal models of autoinflammatory diseases, the mode of application of stilbenes is important to their absorption and curative effects, as seen with topical and microemulsion gel methods. This review covers the diversity seen among stilbenes in the plant kingdom and their mechanism of action on the different inflammatory pathways. In detail, macrophages' contribution to inflamed conditions in the liver, the cardiac, connective and neural tissues, in the nephrons, intestine, lungs and in myriad other body cells is explored, along with detailed explanation on how stilbenes alleviate the symptoms specific to body site. A section on the bioavailability of stilbenes is included for understanding the limitations of the natural compounds as directly used drugs due to their rapid metabolism. Current delivery mechanisms include sulphonamides, or using specially designed synthetic drugs. It is hoped that further research may be fueled by this comprehensive work that makes a compelling argument for the exploitation of these compounds in medicine.
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Affiliation(s)
- Jameel M Al-Khayri
- Department of Agricultural Biotechnology, College of Agriculture and Food Sciences, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Roseanne Mascarenhas
- Department of Life Sciences, CHRIST (Deemed to Be University), Bangalore 560029, India
| | | | - Yashwanth Gowda
- Department of Life Sciences, CHRIST (Deemed to Be University), Bangalore 560029, India
| | | | - Praveen Nagella
- Department of Life Sciences, CHRIST (Deemed to Be University), Bangalore 560029, India
| | - Muneera Qassim Al-Mssallem
- Department of Food Science and Nutrition, College of Agriculture and Food Sciences, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Fatima Mohammed Alessa
- Department of Food Science and Nutrition, College of Agriculture and Food Sciences, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Mustafa Ibrahim Almaghasla
- Department of Arid Land Agriculture, College of Agriculture and Food Sciences, King Faisal University, Al-Ahsa 31982, Saudi Arabia
- Plant Pests, and Diseases Unit, College of Agriculture and Food Sciences, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Adel Abdel-Sabour Rezk
- Department of Agricultural Biotechnology, College of Agriculture and Food Sciences, King Faisal University, Al-Ahsa 31982, Saudi Arabia
- Department of Virus and Phytoplasma, Plant Pathology Institute, Agricultural Research Center, Giza 12619, Egypt
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10
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Gao J, Ma C, Xia D, Chen N, Zhang J, Xu F, Li F, He Y, Gong Q. Icariside II preconditioning evokes robust neuroprotection against ischaemic stroke, by targeting Nrf2 and the OXPHOS/NF-κB/ferroptosis pathway. Br J Pharmacol 2023; 180:308-329. [PMID: 36166825 DOI: 10.1111/bph.15961] [Citation(s) in RCA: 27] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Revised: 08/28/2022] [Accepted: 08/30/2022] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND AND PURPOSE Astrocytic nuclear factor erythroid-derived 2-related factor 2 (Nrf2) is a potential therapeutic target of ischaemic preconditioning (IPC). Icariside II (ICS II) is a naturally occurring flavonoid derived from Herba Epimedii with Nrf2 induction potency. This study was designed to clarify if exposure to ICS II mimicks IPC neuroprotection and if Nrf2 from astrocytes contributes to ICS II preconditioning against ischaemic stroke. EXPERIMENTAL APPROACH Mice with transient middle cerebral artery occlusion (MCAO)-induced focal cerebral ischaemia and primary astrocytes challenged with oxygen-glucose deprivation (OGD) were used to explore the neuroprotective effect of ICS II preconditioning. Additionally, Nrf2-deficient mice were pretreated with ICS II to determine whether ICS II exerts its neuroprotection by activating Nrf2. KEY RESULTS ICS II pretreatment mitigated cerebral injury in the mouse model of ischaemic stroke along with improving long-term recovery. Furthermore, proteomics screening identified Nrf2 as a crucial gene evoked by ICS II treatment and required for the anti-oxidative effect and anti-inflammatory effect of ICS II. Also, ICS II directly bound to Nrf2 and reinforced the transcriptional activity of Nrf2 after MCAO. Moreover, ICS II pretreatment exerted cytoprotective effects on astrocyte cultures following lethal OGD exposure, by promoting Nrf2 nuclear translocation and activating the OXPHOS/NF-κB/ferroptosis axis, while neuroprotection was decreased in Nrf2-deficient mice and Nrf2 siRNA blocked effects of ICS II. CONCLUSION AND IMPLICATIONS ICS II preconditioning provides robust neuroprotection against ischaemic stroke via the astrocytic Nrf2-mediated OXPHOS/NF-κB/ferroptosis axis. Thus, ICS II could be a promising Nrf2 activator to treat ischaemic stroke.
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Affiliation(s)
- Jianmei Gao
- School of Pharmacy, Zunyi Medical University, Zunyi, China.,Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, China.,Department of Pharmacology, Key Laboratory of Basic Pharmacology of Guizhou Province, Zunyi Medical University, Zunyi, China
| | - Congjian Ma
- School of Pharmacy, Zunyi Medical University, Zunyi, China.,Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, China.,Department of Pharmacology, Key Laboratory of Basic Pharmacology of Guizhou Province, Zunyi Medical University, Zunyi, China
| | - Dianya Xia
- School of Pharmacy, Zunyi Medical University, Zunyi, China.,Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, China.,Department of Pharmacology, Key Laboratory of Basic Pharmacology of Guizhou Province, Zunyi Medical University, Zunyi, China
| | - Nana Chen
- School of Pharmacy, Zunyi Medical University, Zunyi, China.,Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, China.,Department of Pharmacology, Key Laboratory of Basic Pharmacology of Guizhou Province, Zunyi Medical University, Zunyi, China
| | - Jianyong Zhang
- School of Pharmacy, Zunyi Medical University, Zunyi, China.,Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, China.,Department of Pharmacology, Key Laboratory of Basic Pharmacology of Guizhou Province, Zunyi Medical University, Zunyi, China
| | - Fan Xu
- Spemann Graduate School of Biology and Medicine (SGBM), Albert-Ludwigs-Universität Freiburg, Freiburg, Germany
| | - Fei Li
- School of Pharmacy, Zunyi Medical University, Zunyi, China.,Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, China.,Department of Pharmacology, Key Laboratory of Basic Pharmacology of Guizhou Province, Zunyi Medical University, Zunyi, China
| | - Yuqi He
- School of Pharmacy, Zunyi Medical University, Zunyi, China.,Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, China.,Department of Pharmacology, Key Laboratory of Basic Pharmacology of Guizhou Province, Zunyi Medical University, Zunyi, China
| | - Qihai Gong
- School of Pharmacy, Zunyi Medical University, Zunyi, China.,Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, China.,Department of Pharmacology, Key Laboratory of Basic Pharmacology of Guizhou Province, Zunyi Medical University, Zunyi, China
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11
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Liu A, Hu J, Yeh TS, Wang C, Tang J, Huang X, Chen B, Huangfu L, Yu W, Zhang L. Neuroprotective Strategies for Stroke by Natural Products: Advances and Perspectives. Curr Neuropharmacol 2023; 21:2283-2309. [PMID: 37458258 PMCID: PMC10556387 DOI: 10.2174/1570159x21666230717144752] [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: 08/22/2022] [Revised: 12/21/2022] [Accepted: 12/23/2022] [Indexed: 09/09/2023] Open
Abstract
Cerebral ischemic stroke is a disease with high prevalence and incidence. Its management focuses on rapid reperfusion with intravenous thrombolysis and endovascular thrombectomy. Both therapeutic strategies reduce disability, but the therapy time window is short, and the risk of bleeding is high. Natural products (NPs) have played a key role in drug discovery, especially for cancer and infectious diseases. However, they have made little progress in clinical translation and pose challenges to the treatment of stroke. Recently, with the investigation of precise mechanisms in cerebral ischemic stroke and the technological development of NP-based drug discovery, NPs are addressing these challenges and opening up new opportunities in cerebral stroke. Thus, in this review, we first summarize the structure and function of diverse NPs, including flavonoids, phenols, terpenes, lactones, quinones, alkaloids, and glycosides. Then we propose the comprehensive neuroprotective mechanism of NPs in cerebral ischemic stroke, which involves complex cascade processes of oxidative stress, mitochondrial damage, apoptosis or ferroptosis-related cell death, inflammatory response, and disruption of the blood-brain barrier (BBB). Overall, we stress the neuroprotective effect of NPs and their mechanism on cerebral ischemic stroke for a better understanding of the advances and perspective in NPs application that may provide a rationale for the development of innovative therapeutic regimens in ischemic stroke.
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Affiliation(s)
- Aifen Liu
- Institute of Interdisciplinary Integrative Medicine Research, School of Medicine, Nantong University, Nantong 226001, China
| | - Jingyan Hu
- Institute of Interdisciplinary Integrative Medicine Research, School of Medicine, Nantong University, Nantong 226001, China
| | - Tzu-Shao Yeh
- Institute of Interdisciplinary Integrative Medicine Research, School of Medicine, Nantong University, Nantong 226001, China
- Department of Nutrition and Food Hygiene, School of Public Health, Nantong University, Nantong 226019, China
| | - Chengniu Wang
- Institute of Interdisciplinary Integrative Medicine Research, School of Medicine, Nantong University, Nantong 226001, China
| | - Jilong Tang
- Institute of Interdisciplinary Integrative Medicine Research, School of Medicine, Nantong University, Nantong 226001, China
| | - Xiaohong Huang
- Institute of Interdisciplinary Integrative Medicine Research, School of Medicine, Nantong University, Nantong 226001, China
| | - Bin Chen
- Institute of Interdisciplinary Integrative Medicine Research, School of Medicine, Nantong University, Nantong 226001, China
| | - Liexiang Huangfu
- Institute of Interdisciplinary Integrative Medicine Research, School of Medicine, Nantong University, Nantong 226001, China
| | - Weili Yu
- Institute of Interdisciplinary Integrative Medicine Research, School of Medicine, Nantong University, Nantong 226001, China
| | - Lei Zhang
- Institute of Interdisciplinary Integrative Medicine Research, School of Medicine, Nantong University, Nantong 226001, China
- Department of Pharmaceutical Botany, School of Pharmacy, Naval Medical University, Shanghai 200433, China
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12
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Cerebral Ischemia/Reperfusion Injury and Pharmacologic Preconditioning as a Means to Reduce Stroke-induced Inflammation and Damage. Neurochem Res 2022; 47:3598-3614. [DOI: 10.1007/s11064-022-03789-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 10/09/2022] [Accepted: 10/11/2022] [Indexed: 11/06/2022]
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13
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Carmona Mata V, Goldberg J. Morin and isoquercitrin protect against ischemic neuronal injury by modulating signaling pathways and stimulating mitochondrial biogenesis. Nutr Neurosci 2022:1-11. [PMID: 35857717 DOI: 10.1080/1028415x.2022.2094855] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
OBJETIVE The search for the etiology of Alzheimer's disease has revealed dysregulation of amyloid protein precursors, β-secretase, mitophagy, apoptosis, and Tau protein genes after ischemic brain injury. Due to this and the fact that some flavonoids have demonstrated anti-amyloidogenic effects on AD targets, we aimed to investigate whether they are effective against an ischemic neuronal injury not only by its antioxidant effects and clarify their mechanism.We simulated the energy depletion that characterizes ischemic processes using iodoacetic acid on HT22 cells. In vitro ischemic assays were also performed under OXPHOS inhibition using inhibitors of the different mitochondrial complexes and intracellular ATP, NADH and NADPH levels were determined. The signaling pathways of MAP kinase (MAPK) and of the PI3K/Akt mTOR were analyzed for its close association with post-ischemic survival. RESULTS Morin and isoquercitrin showed a significant neuroprotective effect against IAA toxicity, favored the activity of the mitochondrial complexes and prevented the decrease in ERK phosphorylation and activation of the stress proteins JNK and p38 caused by IAA treatment, as well as prevented satisfactorily mTOR and p70 dephosphorylation. They provide a considerable resistance to ischemic brain injury by modulating signaling pathways that stimulate mitochondrial biogenesis and promoting the activity of electron transport chain.
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Affiliation(s)
- Vanesa Carmona Mata
- Departamento de Farmacología, Farmacognosia y Botánica. Facultad de Farmacia, Universidad Complutense, Madrid, Spain.,Cellular Neurobiology, The Salk Institute for Biological Studies, La Jolla, CA, USA
| | - Joshua Goldberg
- Cellular Neurobiology, The Salk Institute for Biological Studies, La Jolla, CA, USA
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14
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Zhu H, Huang J, Chen Y, Li X, Wen J, Tian M, Ren J, Zhou L, Yang Q. Resveratrol pretreatment protects neurons from oxygen-glucose deprivation/reoxygenation and ischemic injury through inhibiting ferroptosis. Biosci Biotechnol Biochem 2022; 86:704-716. [PMID: 35357412 DOI: 10.1093/bbb/zbac048] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 03/19/2022] [Indexed: 12/14/2022]
Abstract
Ferroptosis, a newly discovered iron-dependent cell death, is involved in brain ischemia-reperfusion injury. Iron scavengers or ferroptosis inhibitors could reduce infarct volume and improve neurological function in mice. Resveratrol has neuroprotective and neurorestorative effects. However, it is unclear whether resveratrol can play a neuroprotective role via inhibiting ferroptosis. Our study showed that resveratrol pretreatment had a similar effect with ferrostatin‑1, which inhibited neuronal ferroptosis-related changes, such as iron overload, damages of oxidation-reduction system, and destruction of mitochondrial structure, after oxygen-glucose deprivation/reoxygenation (OGD/R) and application of ferroptosis inducers. In addition, middle cerebral artery occlusion/reperfusion (MCAO/R) injury in vivo also induced ferroptosis, and resveratrol pretreatment could inhibit ferroptosis and reduce degenerative neurons, cerebral ischemic damage and infarction volume. Our results are the first to indicate that resveratrol pretreatment might inhibit ferroptosis induced by OGD/R and ferroptosis inducers in neurons, and MCAO/R in rats.
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Affiliation(s)
- Huimin Zhu
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jiagui Huang
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yue Chen
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xuemei Li
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jun Wen
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Mingfen Tian
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jiangxia Ren
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Li Zhou
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Qin Yang
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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15
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Jurcau A, Ardelean AI. Oxidative Stress in Ischemia/Reperfusion Injuries following Acute Ischemic Stroke. Biomedicines 2022; 10:biomedicines10030574. [PMID: 35327376 PMCID: PMC8945353 DOI: 10.3390/biomedicines10030574] [Citation(s) in RCA: 43] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/25/2022] [Accepted: 02/28/2022] [Indexed: 02/04/2023] Open
Abstract
Recanalization therapy is increasingly used in the treatment of acute ischemic stroke. However, in about one third of these patients, recanalization is followed by ischemia/reperfusion injuries, and clinically to worsening of the neurological status. Much research has focused on unraveling the involved mechanisms in order to prevent or efficiently treat these injuries. What we know so far is that oxidative stress and mitochondrial dysfunction are significantly involved in the pathogenesis of ischemia/reperfusion injury. However, despite promising results obtained in experimental research, clinical studies trying to interfere with the oxidative pathways have mostly failed. The current article discusses the main mechanisms leading to ischemia/reperfusion injuries, such as mitochondrial dysfunction, excitotoxicity, and oxidative stress, and reviews the clinical trials with antioxidant molecules highlighting recent developments and future strategies.
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Affiliation(s)
- Anamaria Jurcau
- Department of Psycho-Neurosciences and Rehabilitation, Faculty of Medicine and Pharmacy, University of Oradea, 410087 Oradea, Romania
- Department of Neurology, Clinical Municipal Hospital Oradea, Louis Pasteur Street nr 26, 410054 Oradea, Romania
- Correspondence: ; Tel.: +40-744-600-833
| | - Adriana Ioana Ardelean
- Department of Preclinical Sciences, Faculty of Medicine and Pharmacy, University of Oradea, Universitatii Street nr 1, 410087 Oradea, Romania;
- Department of Cardiology, Clinical Emergency County Hospital Oradea, Gh. Doja Street nr 65, 410169 Oradea, Romania
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16
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Liu J, He J, Huang Y, Hu Z. Resveratrol has an Overall Neuroprotective Role in Ischemic Stroke: A Meta-Analysis in Rodents. Front Pharmacol 2022; 12:795409. [PMID: 34987407 PMCID: PMC8721173 DOI: 10.3389/fphar.2021.795409] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 12/03/2021] [Indexed: 12/16/2022] Open
Abstract
Background: Resveratrol, a natural polyphenolic phytoalexin, is broadly presented in dietary sources. Previous research has suggested its potential neuroprotective effects on ischemic stroke animal models. However, these results have been disputable. Here, we conducted a meta-analysis to comprehensively evaluate the effect of resveratrol treatment in ischemic stroke rodent models. Objective: To comprehensively evaluate the effect of resveratrol treatment in ischemic stroke rodent models. Methods: A literature search of the databases Pubmed, Embase, and Web of science identified 564 studies that were subjected to pre-defined inclusion criteria. 54 studies were included and analyzed using a random-effects model to calculate the standardized mean difference (SMD) with corresponding confidence interval (CI). Results: As compared with controls, resveratrol significantly decreased infarct volume (SMD −4.34; 95% CI −4.98 to −3.69; p < 0.001) and the neurobehavioral score (SMD −2.26; 95% CI −2.86 to −1.67; p < 0.001) in rodents with ischemic stroke. Quality assessment was performed using a 10-item checklist. Studies quality scores ranged from 3 to 8, with a mean value of 5.94. In the stratified analysis, a significant decrease of infarct volume and the neurobehavioral score was achieved in resveratrol sub-groups with a dosage of 20–50 mg/kg. In the meta-regression analysis, the impact of the delivery route on an outcome is the possible source of high heterogeneity. Conclusion: Generally, resveratrol treatment presented neuroprotective effects in ischemic stroke models. Furthermore, this study can direct future preclinical and clinical trials, with important implications for human health.
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Affiliation(s)
- Jianyang Liu
- Department of Neurology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Jialin He
- Department of Neurology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Yan Huang
- National Health Commission Key Laboratory of Birth Defects Research, Prevention, and Treatment, Hunan Provincial Maternal and Child Health Care Hospital, Changsha, China
| | - Zhiping Hu
- Department of Neurology, The Second Xiangya Hospital, Central South University, Changsha, China
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17
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Intracellular Signaling. Stroke 2022. [DOI: 10.1016/b978-0-323-69424-7.00006-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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18
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Mohammadi H, Sariaslani P, Asgharzadeh S, Ghanbari A, Hezarkhani L, Shahbazi F, Mirzaeei S. Does resveratrol enhance recovery from acute ischemic stroke? A randomized, double-blinded, placebo-controlled trial. JOURNAL OF REPORTS IN PHARMACEUTICAL SCIENCES 2022. [DOI: 10.4103/jrptps.jrptps_95_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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19
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Wang L, Ren C, Li Y, Gao C, Li N, Li H, Wu D, He X, Xia C, Ji X. Remote ischemic conditioning enhances oxygen supply to ischemic brain tissue in a mouse model of stroke: Role of elevated 2,3-biphosphoglycerate in erythrocytes. J Cereb Blood Flow Metab 2021; 41:1277-1290. [PMID: 32933360 PMCID: PMC8142126 DOI: 10.1177/0271678x20952264] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Oxygen supply for ischemic brain tissue during stroke is critical to neuroprotection. Remote ischemic conditioning (RIC) treatment is effective for stroke. However, it is not known whether RIC can improve brain tissue oxygen supply. In current study, we employed a mouse model of stroke created by middle cerebral artery occlusion (MCAO) to investigate the effect of RIC on oxygen supply to the ischemic brain tissue using a hypoxyprobe system. Erythrocyte oxygen-carrying capacity and tissue oxygen exchange were assessed by measuring oxygenated hemoglobin and oxygen dissociation curve. We found that RIC significantly mitigated hypoxic signals and decreased neural cell death, thereby preserving neurological functions. The tissue oxygen exchange was markedly enhanced, along with the elevated hemoglobin P50 and right-shifted oxygen dissociation curve. Intriguingly, RIC markedly elevated 2,3-biphosphoglycerate (2,3-BPG) levels in erythrocyte, and the erythrocyte 2,3-BPG levels were highly negatively correlated with the hypoxia in the ischemic brain tissue. Further, adoptive transfusion of 2,3-BPG-rich erythrocytes prepared from RIC-treated mice significantly enhanced the oxygen supply to the ischemic tissue in MCAO mouse model. Collectively, RIC protects against ischemic stroke through improving oxygen supply to the ischemic brain tissue where the enhanced tissue oxygen delivery and exchange by RIC-induced 2,3-BPG-rich erythrocytes may play a role.
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Affiliation(s)
- Lin Wang
- Department of Hematology, Xuanwu Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Hypoxia Translational Medicine, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Changhong Ren
- Beijing Key Laboratory of Hypoxia Translational Medicine, Xuanwu Hospital, Capital Medical University, Beijing, China.,Beijing Municipal Geriatric Medical Research Center, Beijing, China
| | - Yang Li
- Department of Hematology, Xuanwu Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Hypoxia Translational Medicine, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Chen Gao
- Beijing Key Laboratory of Hypoxia Translational Medicine, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Ning Li
- Beijing Key Laboratory of Hypoxia Translational Medicine, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Haiyan Li
- Beijing Key Laboratory of Hypoxia Translational Medicine, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Di Wu
- Deparment of Neurology, China-America Institute of Neuroscience, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Xiaoduo He
- Deparment of Neurology, China-America Institute of Neuroscience, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Changqing Xia
- Department of Hematology, Xuanwu Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Hypoxia Translational Medicine, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Xunming Ji
- Beijing Key Laboratory of Hypoxia Translational Medicine, Xuanwu Hospital, Capital Medical University, Beijing, China.,Beijing Municipal Geriatric Medical Research Center, Beijing, China.,Deparment of Neurology, China-America Institute of Neuroscience, Xuanwu Hospital, Capital Medical University, Beijing, China.,Center of Stroke, Beijing Institute for Brain Disorder, Beijing, China
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20
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Neuroprotective Phytochemicals in Experimental Ischemic Stroke: Mechanisms and Potential Clinical Applications. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:6687386. [PMID: 34007405 PMCID: PMC8102108 DOI: 10.1155/2021/6687386] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 03/10/2021] [Accepted: 03/29/2021] [Indexed: 02/06/2023]
Abstract
Ischemic stroke is a challenging disease with high mortality and disability rates, causing a great economic and social burden worldwide. During ischemic stroke, ionic imbalance and excitotoxicity, oxidative stress, and inflammation are developed in a relatively certain order, which then activate the cell death pathways directly or indirectly via the promotion of organelle dysfunction. Neuroprotection, a therapy that is aimed at inhibiting this damaging cascade, is therefore an important therapeutic strategy for ischemic stroke. Notably, phytochemicals showed great neuroprotective potential in preclinical research via various strategies including modulation of calcium levels and antiexcitotoxicity, antioxidation, anti-inflammation and BBB protection, mitochondrial protection and antiapoptosis, autophagy/mitophagy regulation, and regulation of neurotrophin release. In this review, we summarize the research works that report the neuroprotective activity of phytochemicals in the past 10 years and discuss the neuroprotective mechanisms and potential clinical applications of 148 phytochemicals that belong to the categories of flavonoids, stilbenoids, other phenols, terpenoids, and alkaloids. Among them, scutellarin, pinocembrin, puerarin, hydroxysafflor yellow A, salvianolic acids, rosmarinic acid, borneol, bilobalide, ginkgolides, ginsenoside Rd, and vinpocetine show great potential in clinical ischemic stroke treatment. This review will serve as a powerful reference for the screening of phytochemicals with potential clinical applications in ischemic stroke or the synthesis of new neuroprotective agents that take phytochemicals as leading compounds.
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Xie Q, Li H, Lu D, Yuan J, Ma R, Li J, Ren M, Li Y, Chen H, Wang J, Gong D. Neuroprotective Effect for Cerebral Ischemia by Natural Products: A Review. Front Pharmacol 2021; 12:607412. [PMID: 33967750 PMCID: PMC8102015 DOI: 10.3389/fphar.2021.607412] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 03/08/2021] [Indexed: 12/12/2022] Open
Abstract
Natural products have a significant role in the prevention of disease and boosting of health in humans and animals. Stroke is a disease with high prevalence and incidence, the pathogenesis is a complex cascade reaction. In recent years, it’s reported that a vast number of natural products have demonstrated beneficial effects on stroke worldwide. Natural products have been discovered to modulate activities with multiple targets and signaling pathways to exert neuroprotection via direct or indirect effects on enzymes, such as kinases, regulatory receptors, and proteins. This review provides a comprehensive summary of the established pharmacological effects and multiple target mechanisms of natural products for cerebral ischemic injury in vitro and in vivo preclinical models, and their potential neuro-therapeutic applications. In addition, the biological activity of natural products is closely related to their structure, and the structure-activity relationship of most natural products in neuroprotection is lacking, which should be further explored in future. Overall, we stress on natural products for their role in neuroprotection, and this wide band of pharmacological or biological activities has made them suitable candidates for the treatment of stroke.
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Affiliation(s)
- Qian Xie
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Hongyan Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Danni Lu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jianmei Yuan
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Rong Ma
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jinxiu Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Mihong Ren
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yong Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Hai Chen
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jian Wang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu, China.,School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Daoyin Gong
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
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Shi YH, Zhang XL, Ying PJ, Wu ZQ, Lin LL, Chen W, Zheng GQ, Zhu WZ. Neuroprotective Effect of Astragaloside IV on Cerebral Ischemia/Reperfusion Injury Rats Through Sirt1/Mapt Pathway. Front Pharmacol 2021; 12:639898. [PMID: 33841157 PMCID: PMC8033022 DOI: 10.3389/fphar.2021.639898] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Accepted: 02/17/2021] [Indexed: 11/13/2022] Open
Abstract
Background: Ischemic stroke is a common disease with poor prognosis, which has become one of the leading causes of morbidity and mortality worldwide. Astragaloside IV (AS-IV) is the main bioactive ingredient of Astragali Radix (which has been used for ischemic stroke for thousands of years) and has been found to have multiple bioactivities in the nervous system. In the present study, we aimed to explore the neuroprotective effects of AS-IV in rats with cerebral ischemia/reperfusion (CIR) injury targeting the Sirt1/Mapt pathway. Methods: Sprague-Dawley rats (male, 250-280 g) were randomly divided into the Sham group, middle cerebral artery occlusion/reperfusion (MCAO/R) group, AS-IV group, MCAO/R + EX527 (SIRT1-specific inhibitor) group, and AS-IV + EX527 group. Each group was further assigned into several subgroups according to ischemic time (6 h, 1 d, 3 d, and 7 days). The CIR injury was induced in MCAO/R group, AS-IV group, MCAO/R + EX527 group, and AS-IV + EX527 group by MCAO surgery in accordance with the modified Zea Longa criteria. Modified Neurological Severity Scores (mNSS) were used to evaluate the neurological deficits; TTC (2,3,5-triphenyltetrazolium chloride) staining was used to detect cerebral infarction area; Western Blot was used to assess the protein levels of SIRT1, acetylated MAPT (ac-MAPT), phosphorylated MAPT (p-MAPT), and total MAPT (t-MAPT); Real-time Quantitative Polymerase Chain Reaction (qRT-PCR) was used in the detection of Sirt1 and Mapt transcriptions. Results: Compared with the MCAO/R group, AS-IV can significantly improve the neurological dysfunction (p < 0.05), reduce the infarction area (p < 0.05), raise the expression of SIRT1 (p < 0.05), and alleviate the abnormal hyperacetylation and hyperphosphorylation of MAPT (p < 0.05). While compared with the AS-IV group, AS-IV + EX527 group showed higher mNSS scores (p < 0.05), more severe cerebral infarction (p < 0.05), lower SIRT1 expression (p < 0.01), and higher ac-MAPT and p-MAPT levels (p < 0.05). Conclusion: AS-IV can improve the neurological deficit after CIR injury in rats and reduce the cerebral infarction area, which exerts neuroprotective effects probably through the Sirt1/Mapt pathway.
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Affiliation(s)
- Yi-Hua Shi
- Department of Neurology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Xi-Le Zhang
- Department of Neurology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Peng-Jie Ying
- Department of Neurology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Zi-Qian Wu
- Department of Neurology, Wenzhou Hospital of Traditional Chinese Medicine Affiliated toZhejiang Chinese Medical University, Wenzhou, China
| | - Le-Le Lin
- Department of Neurology, Wenzhou Hospital of Traditional Chinese Medicine Affiliated toZhejiang Chinese Medical University, Wenzhou, China
| | - Wei Chen
- Department of Radiology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Guo-Qing Zheng
- Department of Neurology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Wen-Zong Zhu
- Department of Neurology, Wenzhou Hospital of Traditional Chinese Medicine Affiliated toZhejiang Chinese Medical University, Wenzhou, China
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Bsat S, Halaoui A, Kobeissy F, Moussalem C, El Houshiemy MN, Kawtharani S, Omeis I. Acute ischemic stroke biomarkers: a new era with diagnostic promise? Acute Med Surg 2021; 8:e696. [PMID: 34745637 PMCID: PMC8552525 DOI: 10.1002/ams2.696] [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: 04/24/2021] [Revised: 07/15/2021] [Accepted: 09/01/2021] [Indexed: 01/14/2023] Open
Abstract
Stroke is considered as the first cause of neurological dysfunction and second cause of death worldwide. Recombinant tissue plasminogen activator is the only chemical treatment for ischemic stroke approved by the US Food and Drug Administration. It was the only standard of care for a long time with a very narrow therapeutic window, which usually ranges from 3 to 4.5 h of stroke onset; until 2015, when multiple trials demonstrated the benefit of mechanical thrombectomy during the first 6 h. In addition, recent trials showed that mechanical thrombectomy can be beneficial up to 24 h if the patients meet certain criteria including the presence of magnetic resonance imaging/computed tomography perfusion mismatch, which allows better selectivity and higher recruitment of eligible stroke patients. However, magnetic resonance imaging/computed tomography perfusion is not available in all stroke centers. Hence, physicians need other easy and available diagnostic tools to select stroke patients eligible for mechanical thrombectomy. Moreover, stroke management is still challenging for physicians, particularly those dealing with patients with "wake-up" stroke. The resulting brain tissue damage of ischemic stroke and the subsequent pathological processes are mediated by multiple molecular pathways that are modulated by inflammatory markers and post-transcriptional activity. A considerable number of published works suggest the role of inflammatory and cardiac brain-derived biomarkers (serum matrix metalloproteinase, thioredoxin, neuronal and glial markers, and troponin proteins) as well as different biomarkers including the emerging roles of microRNAs. In this review, we assess the accumulating evidence regarding the current status of acute ischemic stroke diagnostic biomarkers that could guide physicians for better management of stroke patients. Our review could give an insight into the roles of the different emerging markers and microRNAs that can be of high diagnostic value in patients with stroke. In fact, the field of stroke research, similar to the field of traumatic brain injury, is in immense need for novel biomarkers that can stratify diagnosis, prognosis, and therapy.
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Affiliation(s)
- Shadi Bsat
- Division of NeurosurgeryDepartment of SurgeryAmerican University of Beirut Medical CenterBeirutLebanon
| | - Adham Halaoui
- Division of NeurosurgeryDepartment of SurgeryAmerican University of Beirut Medical CenterBeirutLebanon
| | - Firas Kobeissy
- Department of Biochemistry and Molecular GeneticsFaculty of MedicineAmerican University of BeirutBeirutLebanon
| | - Charbel Moussalem
- Division of NeurosurgeryDepartment of SurgeryAmerican University of Beirut Medical CenterBeirutLebanon
| | | | - Sarah Kawtharani
- Division of NeurosurgeryDepartment of SurgeryAmerican University of Beirut Medical CenterBeirutLebanon
| | - Ibrahim Omeis
- Division of NeurosurgeryDepartment of SurgeryAmerican University of Beirut Medical CenterBeirutLebanon
- Department of NeurosurgeryBaylor College of MedicineHoustonTexasUSA
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Resveratrol Mitigates Hippocampal Tau Acetylation and Cognitive Deficit by Activation SIRT1 in Aged Rats following Anesthesia and Surgery. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:4635163. [PMID: 33381265 PMCID: PMC7758127 DOI: 10.1155/2020/4635163] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 11/09/2020] [Accepted: 11/28/2020] [Indexed: 12/14/2022]
Abstract
Postoperative cognitive dysfunction (POCD) is a sever postsurgical neurological complication in the elderly population. As the global acceleration of population ageing, POCD is proved to be a great challenge to the present labor market and healthcare system. In the present study, our findings showed that tau acetylation mediated by SIRT1 deficiency resulted in tau hyperphosphorylation in the hippocampus of the aged POCD model and consequently contributed to cognitive impairment. Interestingly, pretreatment with resveratrol almost restored the expression of SIRT1, reduced the levels of acetylated tau and hyperphosphorylated tau in the hippocampus, and improved the cognitive performance in the behavioral tests. What is more, we observed that microglia-derived neuroinflammation resulting from SIRT1 inhibition in microglia probably aggravated the tau acetylation in cultured neurons in vitro. Our findings supported the notion that activation SIRT1 provided dually beneficial effect in the aged POCD model. Taken together, our findings provided the initial evidence that tau acetylation was associated with cognitive impairment in the aged POCD model and paved a promising avenue to prevent POCD by inhibiting tau acetylation in a SIRT1-dependent manner.
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Vellimana AK, Aum DJ, Diwan D, Clarke JV, Nelson JW, Lawrence M, Han BH, Gidday JM, Zipfel GJ. SIRT1 mediates hypoxic preconditioning induced attenuation of neurovascular dysfunction following subarachnoid hemorrhage. Exp Neurol 2020; 334:113484. [PMID: 33010255 DOI: 10.1016/j.expneurol.2020.113484] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 09/18/2020] [Accepted: 09/24/2020] [Indexed: 01/01/2023]
Abstract
BACKGROUND AND PURPOSE Vasospasm and delayed cerebral ischemia (DCI) contribute significantly to the morbidity/mortality associated with aneurysmal subarachnoid hemorrhage (SAH). While considerable research effort has focused on preventing or reversing vasospasm, SAH-induced brain injury occurs in response to a multitude of concomitantly acting pathophysiologic mechanisms. In this regard, the pleiotropic epigenetic responses to conditioning-based therapeutics may provide an ideal SAH therapeutic strategy. We previously documented the ability of hypoxic preconditioning (PC) to attenuate vasospasm and neurological deficits after SAH, in a manner that depends on the activity of endothelial nitric oxide synthase. The present study was undertaken to elucidate whether the NAD-dependent protein deacetylase sirtuin isoform SIRT1 is an upstream mediator of hypoxic PC-induced protection, and to assess the efficacy of the SIRT1-activating polyphenol Resveratrol as a pharmacologic preconditioning therapy. METHODS Wild-type C57BL/6J mice were utilized in the study and subjected to normoxia or hypoxic PC. Surgical procedures included induction of SAH via endovascular perforation or sham surgery. Multiple endpoints were assessed including cerebral vasospasm, neurobehavioral deficits, SIRT1 expression via quantitative real-time PCR for mRNA, and western blot for protein quantification. Pharmacological agents utilized in the study include EX-527 (SIRT1 inhibitor), and Resveratrol (SIRT1 activator). RESULTS Hypoxic PC leads to rapid and sustained increase in cerebral SIRT1 mRNA and protein expression. SIRT1 inhibition blocks the protective effects of hypoxic PC on vasospasm and neurological deficits. Resveratrol pretreatment dose-dependently abrogates vasospasm and attenuates neurological deficits following SAH - beneficial effects that were similarly blocked by pharmacologic inhibition of SIRT1. CONCLUSION SIRT1 mediates hypoxic preconditioning-induced protection against neurovascular dysfunction after SAH. Resveratrol mimics this neurovascular protection, at least in part, via SIRT1. Activation of SIRT1 is a promising, novel, pleiotropic therapeutic strategy to combat DCI after SAH.
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Affiliation(s)
- Ananth K Vellimana
- Department of Neurological Surgery, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Diane J Aum
- Department of Neurological Surgery, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Deepti Diwan
- Department of Neurological Surgery, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Julian V Clarke
- Department of Neurological Surgery, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - James W Nelson
- Department of Neurological Surgery, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Molly Lawrence
- Department of Neurological Surgery, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Byung Hee Han
- Department of Pharmacology, A.T. Still University of Health Sciences, Kirksville College of Osteopathic Medicine, Kirksville, MO 63501, USA
| | - Jeffrey M Gidday
- Departments of Ophthalmology, Physiology, Biochemistry, and Neuroscience, Louisiana State University, New Orleans, Louisiana, USA
| | - Gregory J Zipfel
- Department of Neurological Surgery, Washington University School of Medicine, St. Louis, MO 63110, USA; Department of Neurology, Washington University School of Medicine, St. Louis, MO, USA.
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The Beneficial Roles of SIRT1 in Neuroinflammation-Related Diseases. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:6782872. [PMID: 33014276 PMCID: PMC7519200 DOI: 10.1155/2020/6782872] [Citation(s) in RCA: 161] [Impact Index Per Article: 40.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 07/29/2020] [Accepted: 08/30/2020] [Indexed: 12/15/2022]
Abstract
Sirtuins are the class III of histone deacetylases whose deacetylate of histones is dependent on nicotinamide adenine dinucleotide (NAD+). Among seven sirtuins, SIRT1 plays a critical role in modulating a wide range of physiological processes, including apoptosis, DNA repair, inflammatory response, metabolism, cancer, and stress. Neuroinflammation is associated with many neurological diseases, including ischemic stroke, bacterial infections, traumatic brain injury, Alzheimer's disease (AD), and Parkinson's disease (PD). Recently, numerous studies indicate the protective effects of SIRT1 in neuroinflammation-related diseases. Here, we review the latest progress regarding the anti-inflammatory and neuroprotective effects of SIRT1. First, we introduce the structure, catalytic mechanism, and functions of SIRT1. Next, we discuss the molecular mechanisms of SIRT1 in the regulation of neuroinflammation. Finally, we analyze the mechanisms and effects of SIRT1 in several common neuroinflammation-associated diseases, such as cerebral ischemia, traumatic brain injury, spinal cord injury, AD, and PD. Taken together, this information implies that SIRT1 may serve as a promising therapeutic target for the treatment of neuroinflammation-associated disorders.
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Protective Mechanism and Treatment of Neurogenesis in Cerebral Ischemia. Neurochem Res 2020; 45:2258-2277. [PMID: 32794152 DOI: 10.1007/s11064-020-03092-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 06/18/2020] [Accepted: 07/08/2020] [Indexed: 12/14/2022]
Abstract
Stroke is the fifth leading cause of death worldwide and is a main cause of disability in adults. Neither currently marketed drugs nor commonly used treatments can promote nerve repair and neurogenesis after stroke, and the repair of neurons damaged by ischemia has become a research focus. This article reviews several possible mechanisms of stroke and neurogenesis and introduces novel neurogenic agents (fibroblast growth factors, brain-derived neurotrophic factor, purine nucleosides, resveratrol, S-nitrosoglutathione, osteopontin, etc.) as well as other treatments that have shown neuroprotective or neurogenesis-promoting effects.
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Zhang YQ, Wu JB, Yin W, Zhang YH, Huang ZJ. Design, synthesis, and biological evaluation of ligustrazine/resveratrol hybrids as potential anti-ischemic stroke agents. Chin J Nat Med 2020; 18:633-640. [PMID: 32768171 DOI: 10.1016/s1875-5364(20)30076-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Indexed: 10/23/2022]
Abstract
To search for potent anti-ischemic stroke agents, a series of tetramethylpyrazine (TMP)/resveratrol (RES) hybrids 6a-t were designed and synthesized. These hybrids inhibited adenosine diphosphate (ADP)- or arachidonic acid (AA)-induced platelet aggregation, among them, 6d, 6g-i, 6o and 6q were more active than TMP. The most active compound 6h exhibited more potent anti-platelet aggregation activity than TMP, RES, as well as positive control ticlopidine (Ticlid) and aspirin (ASP). Furthermore, 6h exerted strong antioxidative activity in a dose-dependent manner in rat pheochromocytoma PC12 cells which were treated with hydrogen peroxide (H2O2) or hydroxyl radical (·OH). Importantly, 6h significantly protected primary neuronal cells suffered from oxygen-glucose deprivation/reoxygenation (OGD/R) injury, comparable to an anti-ischemic drug edaravone (Eda). Together, our findings suggest that 6h may be a promising candidate warranting further investigation for the intervention of ischemic stroke.
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Affiliation(s)
- Yin-Qiu Zhang
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases, Center of Drug Discovery, China Pharmaceutical University, Nanjing 210009, China
| | - Jian-Bing Wu
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases, Center of Drug Discovery, China Pharmaceutical University, Nanjing 210009, China
| | - Wei Yin
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases, Center of Drug Discovery, China Pharmaceutical University, Nanjing 210009, China
| | - Yi-Hua Zhang
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases, Center of Drug Discovery, China Pharmaceutical University, Nanjing 210009, China.
| | - Zhang-Jian Huang
- State Key Laboratory of Natural Medicines, Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases, Center of Drug Discovery, China Pharmaceutical University, Nanjing 210009, China.
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Yang G, Yang Y, Li Y, Hu Z. Remote liver ischaemic preconditioning protects rat brain against cerebral ischaemia-reperfusion injury by activation of an AKT-dependent pathway. Exp Physiol 2020; 105:852-863. [PMID: 32134522 DOI: 10.1113/ep088394] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 03/02/2020] [Indexed: 02/05/2023]
Abstract
NEW FINDINGS What is the central question of this study? Can remote liver ischaemic preconditioning (RLIPC) protect rat brain against cerebral ischaemia-reperfusion injury? What is the main finding and its importance? Pretreatment with RLIPC reduced cerebral infarct volume, improved neurological outcomes and inhibited neuron apoptosis. RLIPC led to increased phosphorylation of AKT, while inhibition of AKT abolished the effects of RLIPC. Our data suggest that liver ischaemic preconditioning exerts a strong neuroprotective effect against cerebral ischaemia-reperfusion injury by activating an AKT-dependent pathway. ABSTRACT Remote limb ischaemic preconditioning has been shown to have beneficial effects in protecting brains against ischaemia-reperfusion (I/R) injury. However, little is known regarding the effect of remote liver ischaemic conditioning (RLIPC). We therefore investigated the effect of RLIPC on brain tissues suffering from I/R injury. Rats were randomly assigned to a sham group, a control group or a RLIPC group. Rats in all groups except for the sham group received middle cerebral artery occlusion (MCAO) for 1 h, followed by 48 h of reperfusion. For the RLIPC rats, four cycles of 5 min of liver ischaemia (portal vein, hepatic arterial and venous trunk occlusion) with 5 min intermittent reperfusion were carried out before cerebral ischaemia. Infarct volume was assessed after 48 h of reperfusion. Blood samples were taken for serum lactate dehydrogenase (LDH) and creatine kinase-MB (CK-MB) tests. Morphological changes of cortical tissue and cellular apoptosis were determined. Right cortex tissues were taken for western blotting measurements. Our data demonstrate that RLIPC reduced cerebral I/R injury, decreased the volume of the MCAO-evoked infarct region, decreased serum levels of LDH and CK-MB, and reduced neurological deficits and apoptosis after I/R injury. Moreover, rats receiving RLIPC showed increased cortical AKT phosphorylation, but protein phosphorylation level was unchanged in the survivor activating factor enhancement (SAFE) signalling pathway. Accordingly, inhibition of AKT with wortmannin abolished the neuroprotective action of liver preconditioning. Our study showed for the first time that liver ischaemic preconditioning effectively protects brain against cerebral I/R injury by activating an AKT-dependent pathway.
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Affiliation(s)
- Guang Yang
- Department of Experimental Animal Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yu Yang
- Lab for Aging Research, Center of Gerontology and Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yanmei Li
- Laboratory of Anesthesiology & Critical Care Medicine, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Zhaoyang Hu
- Laboratory of Anesthesiology & Critical Care Medicine, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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Carloni S, Balduini W. Simvastatin preconditioning confers neuroprotection against hypoxia-ischemia induced brain damage in neonatal rats via autophagy and silent information regulator 1 (SIRT1) activation. Exp Neurol 2020; 324:113117. [DOI: 10.1016/j.expneurol.2019.113117] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 10/03/2019] [Accepted: 11/14/2019] [Indexed: 10/25/2022]
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Sarne Y. Beneficial and deleterious effects of cannabinoids in the brain: the case of ultra-low dose THC. THE AMERICAN JOURNAL OF DRUG AND ALCOHOL ABUSE 2019; 45:551-562. [PMID: 30864864 DOI: 10.1080/00952990.2019.1578366] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
This article reviews the neurocognitive advantages and drawbacks of cannabinoid substances, and discusses the possible physiological mechanisms that underlie their dual activity. The article further reviews the neurocognitive effects of ultra-low doses of ∆9-tetrahydrocannabinol (THC; 3-4 orders of magnitude lower than the conventional doses) in mice, and proposes such low doses of THC as a possible remedy for various brain injuries and for the treatment of age-related cognitive decline.
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Affiliation(s)
- Yosef Sarne
- Department of Physiology and Pharmacology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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32
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Dave KR, Saul I, Raval AP, Perez-Pinzon MA. Preconditioning with CpG-ODN1826 reduces ischemic brain injury in young male mice: a replication study. CONDITIONING MEDICINE 2019; 2:178-184. [PMID: 32510041 PMCID: PMC7274220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Earlier studies established that ischemic tolerance can be induced in the brain using various strategies. An earlier study demonstrated that preconditioning with the toll-like receptor 9 ligand, CpG oligodeoxynucleotides (ODN), protects the brain against ischemic damage. To increase the potential translational value of the previous study, the goal of the present study was to replicate this earlier finding in a different animal cohort at a different site. In addition to these replication studies, following the Stroke Treatment Academic Industry Roundtable (STAIR) guidelines, we also conducted studies to evaluate the protective effect of CpG-ODN 1826 preconditioning on cerebral ischemic damage in ovariectomized (Ovx) female animals. Young male and female mice were treated with CpG-ODN 1826 or control ligand 3 days prior to the induction of transient (60 min) cerebral ischemia using a middle cerebral artery occlusion (MCAO) model. Infarct size was evaluated at ~24 h post-MCAO. We were able to replicate earlier findings that preconditioning with a low dose (20 μg/mouse) of CpG-ODN 1826 was able to lower cerebral ischemic damage in young male mice. However, we did not see any protective effect of low dose CpG-ODN 1826 preconditioning against cerebral ischemic damage in young Ovx female mice. Our study independently confirms the protective effect of CpG-ODN 1826 in inducing cerebral ischemia tolerance in male but not in Ovx female mice. Our study also demonstrates the feasibility of conducting such replication studies in rodent models of transient stroke.
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Affiliation(s)
- Kunjan R. Dave
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratories, University of Miami School of Medicine, Miami, FL, USA
- Department of Neurology, University of Miami School of Medicine, Miami, FL, USA
- Neuroscience Program, University of Miami School of Medicine, Miami, FL, USA
| | - Isabel Saul
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratories, University of Miami School of Medicine, Miami, FL, USA
- Department of Neurology, University of Miami School of Medicine, Miami, FL, USA
| | - Ami P. Raval
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratories, University of Miami School of Medicine, Miami, FL, USA
- Department of Neurology, University of Miami School of Medicine, Miami, FL, USA
- Neuroscience Program, University of Miami School of Medicine, Miami, FL, USA
| | - Miguel A. Perez-Pinzon
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratories, University of Miami School of Medicine, Miami, FL, USA
- Department of Neurology, University of Miami School of Medicine, Miami, FL, USA
- Neuroscience Program, University of Miami School of Medicine, Miami, FL, USA
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Raval AP, Martinez CC, Mejias NH, de Rivero Vaccari JP. Sexual dimorphism in inflammasome-containing extracellular vesicles and the regulation of innate immunity in the brain of reproductive senescent females. Neurochem Int 2018; 127:29-37. [PMID: 30500463 DOI: 10.1016/j.neuint.2018.11.018] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 11/26/2018] [Accepted: 11/26/2018] [Indexed: 12/20/2022]
Abstract
A woman's risk for stroke increases exponentially following the onset of menopause; however, the underlying mechanisms responsible for the increased risk remain unknown. The depletion of endogenous estrogen at menopause is known to activate the inflammatory response. Therefore, in this study we have used reproductively senescent (RS) rats to test the hypotheses that (1) inflammasome activation is significantly higher in the brain of RS females (RSF) as compared to their younger counterparts and age-matched senescent male rats, and that (2) RS triggers an innate immune response mediated in part by inflammasome-containing extracellular vesicles (EV) that originate in the female reproductive organs and then spreads to the brain. We tested these hypotheses using male and female Sprague-Dawley rats (Young: 6-7 months and RS: 9-13 months). Hippocampus, gonads and serum were collected. Additionally, cerebrospinal fluid (CSF) of pre- and post-menopausal women (ages 23 to 37 and 52 to 68) was purchased and extracellular vesicles (EV) were isolated from serum and CSF. The Inflammasome proteins caspase-1, apoptosis-associated speck-like protein containing a caspase recruitment domain (ASC) and IL-1β were then resolved by immunoblotting. We found that inflammasome protein expression increased significantly in the analyzed tissues in RSF as compared to young females (YF), such difference was not present in age-matched male rat brains. Interestingly, we found that Nik-related kinase (NRK), which is present in female reproductive organs was present in the CSF and serum-derived EV, suggesting that the source of the EV seen in the brain during RS/menopause originate, in part, in the female reproductive organs. Thus, this study shows for the first time an involvement of the inflammasome originating in the female reproductive system as a contributor to inflammation in the brain that makes the peri-menopausal women's brain more susceptible to neurodegenerative diseases such as stroke.
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Affiliation(s)
- Ami P Raval
- Cerebral Vascular Disease Research Laboratories, Department of Neurology, Leonard M. Miller School of Medicine, University of Miami, Miami, FL, 33136, USA.
| | - Camila C Martinez
- Department of Neurological Surgery and The Miami Project to Cure Paralysis, Leonard M. Miller School of Medicine, University of Miami, Miami, FL, 33136, USA
| | - Nancy H Mejias
- Department of Neurological Surgery and The Miami Project to Cure Paralysis, Leonard M. Miller School of Medicine, University of Miami, Miami, FL, 33136, USA
| | - Juan Pablo de Rivero Vaccari
- Department of Neurological Surgery and The Miami Project to Cure Paralysis, Leonard M. Miller School of Medicine, University of Miami, Miami, FL, 33136, USA.
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Zhang JF, Zhang YL, Wu YC. The Role of Sirt1 in Ischemic Stroke: Pathogenesis and Therapeutic Strategies. Front Neurosci 2018; 12:833. [PMID: 30519156 PMCID: PMC6258790 DOI: 10.3389/fnins.2018.00833] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Accepted: 10/24/2018] [Indexed: 12/11/2022] Open
Abstract
Silent mating type information regulation 2 homolog 1 (Sirt1), a nicotine adenine dinucleotide (NAD+)-dependent enzyme, is well-known in playing a part in longevity. Ischemic stroke is a major neurological disorder and is a leading cause of death and adult disability worldwide. Recently, many studies have focused on the role of Sirt1 in ischemic stroke. Numerous studies consider Sirt1 as a protective factor and investigate the signaling pathways involved in the process under ischemic stress. However, the answer to whether upregulation of Sirt1 improves the outcome of stroke is still a controversy. In this review, we discuss the role and mechanisms of Sirt1 in the setting of ischemic stroke.
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Affiliation(s)
- Jun-Fang Zhang
- Department of Neurology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yu-Lei Zhang
- Department of Neurology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yun-Cheng Wu
- Department of Neurology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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35
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Nutritional Regulators of Bcl-xL in the Brain. Molecules 2018; 23:molecules23113019. [PMID: 30463183 PMCID: PMC6278276 DOI: 10.3390/molecules23113019] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 11/15/2018] [Accepted: 11/18/2018] [Indexed: 01/12/2023] Open
Abstract
B-cell lymphoma-extra large (Bcl-xL) is an anti-apoptotic Bcl-2 protein found in the mitochondrial membrane. Bcl-xL is reported to support normal brain development and protects neurons against toxic stimulation during pathological process via its roles in regulation of mitochondrial functions. Despite promising evidence showing neuroprotective properties of Bcl-xL, commonly applied molecular approaches such as genetic manipulation may not be readily applicable for human subjects. Therefore, findings at the bench may be slow to be translated into treatments for disease. Currently, there is no FDA approved application that specifically targets Bcl-xL and treats brain-associated pathology in humans. In this review, we will discuss naturally occurring nutrients that may exhibit regulatory effects on Bcl-xL expression or activity, thus potentially providing affordable, readily-applicable, easy, and safe strategies to protect the brain.
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36
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Khoury N, Xu J, Stegelmann SD, Jackson CW, Koronowski KB, Dave KR, Young JI, Perez-Pinzon MA. Resveratrol Preconditioning Induces Genomic and Metabolic Adaptations within the Long-Term Window of Cerebral Ischemic Tolerance Leading to Bioenergetic Efficiency. Mol Neurobiol 2018; 56:4549-4565. [PMID: 30343466 DOI: 10.1007/s12035-018-1380-6] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 10/04/2018] [Indexed: 01/23/2023]
Abstract
Neuroprotective agents administered post-cerebral ischemia have failed so far in the clinic to promote significant recovery. Thus, numerous efforts were redirected toward prophylactic approaches such as preconditioning as an alternative therapeutic strategy. Our laboratory has revealed a novel long-term window of cerebral ischemic tolerance mediated by resveratrol preconditioning (RPC) that lasts for 2 weeks in mice. To identify its mediators, we conducted an RNA-seq experiment on the cortex of mice 2 weeks post-RPC, which revealed 136 differentially expressed genes. The majority of genes (116/136) were downregulated upon RPC and clustered into biological processes involved in transcription, synaptic signaling, and neurotransmission. The downregulation in these processes was reminiscent of metabolic depression, an adaptation used by hibernating animals to survive severe ischemic states by downregulating energy-consuming pathways. Thus, to assess metabolism, we used a neuronal-astrocytic co-culture model and measured the cellular respiration rate at the long-term window post-RPC. Remarkably, we observed an increase in glycolysis and mitochondrial respiration efficiency upon RPC. We also observed an increase in the expression of genes involved in pyruvate uptake, TCA cycle, and oxidative phosphorylation, all of which indicated an increased reliance on energy-producing pathways. We then revealed that these nuclear and mitochondrial adaptations, which reduce the reliance on energy-consuming pathways and increase the reliance on energy-producing pathways, are epigenetically coupled through acetyl-CoA metabolism and ultimately increase baseline ATP levels. This increase in ATP would then allow the brain, a highly metabolic organ, to endure prolonged durations of energy deprivation encountered during cerebral ischemia.
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Affiliation(s)
- Nathalie Khoury
- Cerebral Vascular Disease Research Laboratories, University of Miami Leonard M. Miller School of Medicine, Miami, FL, 33136, USA.,Department of Neurology, University of Miami, Miller School of Medicine, P.O. Box 016960, Miami, FL, 33101, USA.,Neuroscience Program, University of Miami Leonard M. Miller School of Medicine, Miami, FL, 33136, USA
| | - Jing Xu
- Cerebral Vascular Disease Research Laboratories, University of Miami Leonard M. Miller School of Medicine, Miami, FL, 33136, USA.,Department of Neurology, University of Miami, Miller School of Medicine, P.O. Box 016960, Miami, FL, 33101, USA.,Neuroscience Program, University of Miami Leonard M. Miller School of Medicine, Miami, FL, 33136, USA
| | - Samuel D Stegelmann
- Cerebral Vascular Disease Research Laboratories, University of Miami Leonard M. Miller School of Medicine, Miami, FL, 33136, USA.,Department of Neurology, University of Miami, Miller School of Medicine, P.O. Box 016960, Miami, FL, 33101, USA
| | - Charles W Jackson
- Cerebral Vascular Disease Research Laboratories, University of Miami Leonard M. Miller School of Medicine, Miami, FL, 33136, USA.,Department of Neurology, University of Miami, Miller School of Medicine, P.O. Box 016960, Miami, FL, 33101, USA.,Neuroscience Program, University of Miami Leonard M. Miller School of Medicine, Miami, FL, 33136, USA
| | - Kevin B Koronowski
- Cerebral Vascular Disease Research Laboratories, University of Miami Leonard M. Miller School of Medicine, Miami, FL, 33136, USA.,Department of Neurology, University of Miami, Miller School of Medicine, P.O. Box 016960, Miami, FL, 33101, USA.,Neuroscience Program, University of Miami Leonard M. Miller School of Medicine, Miami, FL, 33136, USA
| | - Kunjan R Dave
- Cerebral Vascular Disease Research Laboratories, University of Miami Leonard M. Miller School of Medicine, Miami, FL, 33136, USA.,Department of Neurology, University of Miami, Miller School of Medicine, P.O. Box 016960, Miami, FL, 33101, USA.,Neuroscience Program, University of Miami Leonard M. Miller School of Medicine, Miami, FL, 33136, USA
| | - Juan I Young
- Neuroscience Program, University of Miami Leonard M. Miller School of Medicine, Miami, FL, 33136, USA.,John P. Hussman Institute for Human Genomics, University of Miami Leonard M. Miller School of Medicine, Miami, FL, 33136, USA.,Department of Human Genetics, University of Miami Leonard M. Miller School of Medicine, Miami, FL, 33136, USA
| | - Miguel A Perez-Pinzon
- Cerebral Vascular Disease Research Laboratories, University of Miami Leonard M. Miller School of Medicine, Miami, FL, 33136, USA. .,Department of Neurology, University of Miami, Miller School of Medicine, P.O. Box 016960, Miami, FL, 33101, USA. .,Neuroscience Program, University of Miami Leonard M. Miller School of Medicine, Miami, FL, 33136, USA.
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37
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Gonçalves LV, Herlinger AL, Ferreira TAA, Coitinho JB, Pires RGW, Martins-Silva C. Environmental enrichment cognitive neuroprotection in an experimental model of cerebral ischemia: biochemical and molecular aspects. Behav Brain Res 2018; 348:171-183. [DOI: 10.1016/j.bbr.2018.04.023] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 03/07/2018] [Accepted: 04/16/2018] [Indexed: 01/25/2023]
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38
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Rehni AK, Dave KR. Ameliorative potential of conditioning on ischemia-reperfusion injury in diabetes. CONDITIONING MEDICINE 2018; 1:105-115. [PMID: 29795806 PMCID: PMC5962288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Diabetes is a serious metabolic disease characterized by hyperglycemia. Diabetes also leads to several long-term secondary complications. Cardiovascular disease is an important complication of diabetes and is a major contributor to morbidity and mortality in diabetic subjects. The discovery of conditioning-induced ischemic or anoxic tolerance has led to the demonstration of the protective potential of conditioning as a treatment strategy to mitigate ischemia-reperfusion injury. Diabetes modulates multiple metabolic pathways and signal transduction cascades. Some of these pathways may overlap with mechanisms that mediate the beneficial effects of conditioning from the body's reaction to a sublethal insult, indicating the possibility of a potential interaction between diabetes and conditioning. Studies demonstrate that diabetes abrogates the ameliorative effect of various forms of conditioning, such as ischemic preconditioning, ischemic postconditioning, remote ischemic conditioning and pharmacological conditioning, on ischemia-reperfusion injury in various animal models. Moreover, drugs used to treat diabetes may have a potential impact on protection afforded by conditioning from ischemic injury. Studies also indicate a potential impact of various anti-diabetic drugs on conditioning-induced protection. Overall, the literature suggests that a better understanding of the overlap among pathways activated by diabetes and those involved in induction of ischemia tolerance may help identify ideal conditioning paradigms to protect diabetic subjects from ischemic injury.
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Affiliation(s)
- Ashish K. Rehni
- Cerebral Vascular Disease Research Laboratories, University of Miami Miller School of Medicine, Miami, Florida 33136, USA
- Department of Neurology, University of Miami Miller School of Medicine, Miami, Florida 33136, USA
| | - Kunjan R. Dave
- Cerebral Vascular Disease Research Laboratories, University of Miami Miller School of Medicine, Miami, Florida 33136, USA
- Department of Neurology, University of Miami Miller School of Medicine, Miami, Florida 33136, USA
- Neuroscience Program, University of Miami Miller School of Medicine, Miami, Florida 33136, USA
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39
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Li G, Morris-Blanco KC, Lopez MS, Yang T, Zhao H, Vemuganti R, Luo Y. Impact of microRNAs on ischemic stroke: From pre- to post-disease. Prog Neurobiol 2018; 163-164:59-78. [DOI: 10.1016/j.pneurobio.2017.08.002] [Citation(s) in RCA: 96] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 06/12/2017] [Accepted: 08/16/2017] [Indexed: 12/21/2022]
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40
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Combinatorial Preconditioning of Rat Brain Cultures with Subprotective Ethanol and Resveratrol Concentrations Promotes Synergistic Neuroprotection. Neurotox Res 2018. [DOI: 10.1007/s12640-018-9886-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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41
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Cai JC, Liu W, Lu F, Kong WB, Zhou XX, Miao P, Lei CX, Wang Y. Resveratrol attenuates neurological deficit and neuroinflammation following intracerebral hemorrhage. Exp Ther Med 2018; 15:4131-4138. [PMID: 29725362 PMCID: PMC5920231 DOI: 10.3892/etm.2018.5938] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 10/06/2017] [Indexed: 11/05/2022] Open
Abstract
Resveratrol (RESV) improves histopathological and behavioral outcomes in diseases of the central nervous system. However, to the best of our knowledge, there have been no studies investigating its neuroprotective effects on secondary brain injury following intracerebral hemorrhage (ICH). The aim of the present study was to evaluate the neuroprotective function of resveratrol following ICH. Male Sprague-Dawley rats were randomly divided into 3 groups: Sham, ICH and ICH+RESV groups. Rats underwent ICH and received an intraperitoneal injection of RESV daily. Rotarod and open field tests were performed to evaluate improvements in motor disturbance pre- and post-surgery. Rats were sacrificed following the final behavioral test; subsequently, neuron injury and cell death in the hippocampus and microglia activation in the cortex were determined using Nissl staining and ionized calcium binding adaptor molecule 1 immunofluorescence staining, respectively. Compared with the ICH group, rats treated with resveratrol for 2 weeks performed significantly better in behavioral tests. Furthermore, less neural damage in the hippocampus and decreased activation of microglia was observed in the ICH+RESV group. The results of the present study therefore indicate that resveratrol may alleviate secondary brain injury following ICH.
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Affiliation(s)
- Jia-Chen Cai
- Department of Neurosurgery, The No. 2 People's Hospital of Changshu, Suzhou, Jiangsu 215500, P.R. China
| | - Wei Liu
- Department of Neurosurgery, The Affiliated Hospital of Qingdao University, School of Medicine, Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Fei Lu
- Key Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, Guangdong 518055, P.R. China
| | - Wen-Bing Kong
- Department of Neurosurgery, East District of Qingdao Municipal Hospital, School of Medicine, Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Xin-Xuan Zhou
- Department of Neurosurgery, East District of Qingdao Municipal Hospital, School of Medicine, Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Peng Miao
- Department of Neurosurgery, East District of Qingdao Municipal Hospital, School of Medicine, Qingdao University, Qingdao, Shandong 266000, P.R. China
| | - Cheng-Xiang Lei
- Department of Biomedical Sciences, Institute of Molecular Medicine, HuaQiao University, Quanzhou, Fujian 362021, P.R. China
| | - Yan Wang
- Department of Cardiology, East District of Qingdao Municipal Hospital, School of Medicine, Qingdao University, Qingdao, Shandong 266000, P.R. China
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42
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Lee RHC, Lee MHH, Wu CYC, Couto e Silva A, Possoit HE, Hsieh TH, Minagar A, Lin HW. Cerebral ischemia and neuroregeneration. Neural Regen Res 2018; 13:373-385. [PMID: 29623912 PMCID: PMC5900490 DOI: 10.4103/1673-5374.228711] [Citation(s) in RCA: 119] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/01/2018] [Indexed: 12/11/2022] Open
Abstract
Cerebral ischemia is one of the leading causes of morbidity and mortality worldwide. Although stroke (a form of cerebral ischemia)-related costs are expected to reach 240.67 billion dollars by 2030, options for treatment against cerebral ischemia/stroke are limited. All therapies except anti-thrombolytics (i.e., tissue plasminogen activator) and hypothermia have failed to reduce neuronal injury, neurological deficits, and mortality rates following cerebral ischemia, which suggests that development of novel therapies against stroke/cerebral ischemia are urgently needed. Here, we discuss the possible mechanism(s) underlying cerebral ischemia-induced brain injury, as well as current and future novel therapies (i.e., growth factors, nicotinamide adenine dinucleotide, melatonin, resveratrol, protein kinase C isozymes, pifithrin, hypothermia, fatty acids, sympathoplegic drugs, and stem cells) as it relates to cerebral ischemia.
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Affiliation(s)
- Reggie H. C. Lee
- Department of Neurology, Louisiana State University Health Science Center, Shreveport, LA, USA
- Center for Brain Health, Louisiana State University Health Science Center, Shreveport, LA, USA
| | - Michelle H. H. Lee
- Institute of Cellular and System Medicine, National Health Research Institutes, Zhunan, Taiwan, China
| | - Celeste Y. C. Wu
- Department of Neurology, Louisiana State University Health Science Center, Shreveport, LA, USA
- Center for Brain Health, Louisiana State University Health Science Center, Shreveport, LA, USA
| | - Alexandre Couto e Silva
- Department of Cellular Biology and Anatomy, Louisiana State University Health Science Center, Shreveport, LA, USA
| | - Harlee E. Possoit
- Department of Neurology, Louisiana State University Health Science Center, Shreveport, LA, USA
- Center for Brain Health, Louisiana State University Health Science Center, Shreveport, LA, USA
| | - Tsung-Han Hsieh
- Department of Neurology, Louisiana State University Health Science Center, Shreveport, LA, USA
- Center for Brain Health, Louisiana State University Health Science Center, Shreveport, LA, USA
| | - Alireza Minagar
- Department of Neurology, Louisiana State University Health Science Center, Shreveport, LA, USA
| | - Hung Wen Lin
- Department of Neurology, Louisiana State University Health Science Center, Shreveport, LA, USA
- Center for Brain Health, Louisiana State University Health Science Center, Shreveport, LA, USA
- Department of Cellular Biology and Anatomy, Louisiana State University Health Science Center, Shreveport, LA, USA
- Cardiovascular and Metabolomics Research Center, Hualien Tzu Chi Hospital, Hualien, Taiwan, China
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43
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Sirtuins as Modifiers of Huntington's Disease (HD) Pathology. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2018; 154:105-145. [DOI: 10.1016/bs.pmbts.2017.11.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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44
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Reversal of age-related cognitive impairments in mice by an extremely low dose of tetrahydrocannabinol. Neurobiol Aging 2018; 61:177-186. [DOI: 10.1016/j.neurobiolaging.2017.09.025] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Revised: 09/18/2017] [Accepted: 09/23/2017] [Indexed: 01/28/2023]
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45
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Yang T, Li Q, Zhang F. Regulation of gene expression in ischemic preconditioning in the brain. CONDITIONING MEDICINE 2017; 1:47-56. [PMID: 30035270 PMCID: PMC6051752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Stroke is the third leading cause of death and the leading cause of long-term disability, with very few effective treatments and limited progress in the effort to search for novel therapeutic approaches. The phenomenon that a sublethal ischemic insult induces protection against a subsequent severe ischemia, termed ischemic preconditioning (IPC), represents an endogenous protective approach against ischemic brain injury, and may direct a breakthrough to future therapeutic strategies. It is broadly accepted that new protein synthesis is required for IPC-mediated long-term neuroprotection; however, their relative regulatory mechanisms are poorly understood. In the present review, we summarize genomic-based studies on alterations in gene expression and protein synthesis, particularly categorizing potential pathways regulated by IPC. We also review the role of epigenetics, an inheritable genetic regulatory mechanism without changes in DNA sequence, in IPC-mediated neuroprotection.
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Affiliation(s)
- Tuo Yang
- Department of Neurology, Pittsburgh Institute of Brain Disorders and Recovery, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
| | - Qianqian Li
- Department of Neurology, Pittsburgh Institute of Brain Disorders and Recovery, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
| | - Feng Zhang
- Department of Neurology, Pittsburgh Institute of Brain Disorders and Recovery, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
- Geriatric Research, Educational and Clinical Center, Veterans Affairs Pittsburgh Health Care System, Pittsburgh, PA
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46
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Zhang X, Wu Q, Zhang Q, Lu Y, Liu J, Li W, Lv S, Zhou M, Zhang X, Hang C. Resveratrol Attenuates Early Brain Injury after Experimental Subarachnoid Hemorrhage via Inhibition of NLRP3 Inflammasome Activation. Front Neurosci 2017; 11:611. [PMID: 29163015 PMCID: PMC5675880 DOI: 10.3389/fnins.2017.00611] [Citation(s) in RCA: 82] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Accepted: 10/18/2017] [Indexed: 12/22/2022] Open
Abstract
Previous studies have demonstrated resveratrol (RSV) has beneficial effects in early brain injury (EBI) after subarachnoid hemorrhage (SAH). However, the beneficial effects of RSV and the underlying mechanisms have not been clearly identified. The nucleotide-binding oligomerization domain-like receptor family pyrin domain-containing 3 (NLRP3) inflammasome activation plays a crucial role in the EBI pathogenesis. The aim of this study was to investigate the role of RSV on the NLRP3 inflammasome signaling pathway and EBI in rats after SAH. A prechiasmatic cistern injection model was established in rats, and the primary cultured cortical neurons were stimulated with oxyhemoglobin (oxyHb) to induce SAH in vitro. It showed that the NLRP3 inflammasome components, including NLRP3, apoptosis-associated speck-like protein containing a caspase recruitment domain (ASC), caspase-1, mature interleukin-1β (IL-1β), and interleukin-18 (IL-18) were upregulated after SAH, and the enhanced NLRP3 after SAH was mainly located in microglia. Treatment with 60 or 90 mg/kg RSV after SAH dramatically inhibited the expression of NLRP3, but there was no significant difference in the expression of NLRP3 between the SAH + 60 mg/kg RSV and SAH + 90 mg/kg RSV groups. In addition, treatment with 30 mg/kg RSV did not significantly reduced the expression of NLRP3. We next evaluated the neuroprotective effects of RSV against SAH. We determined that SAH-induced NLRP3 inflammasome activation was significantly inhibited in the SAH + 60 mg/kg RSV group. Meanwhile, 60 mg/kg RSV administration could markedly inhibit microglia activation and neutrophils infiltration after SAH. Concomitant with the decreased cerebral inflammation, RSV evidently reduced cortical apoptosis, brain edema, and neurobehavioral impairment after SAH. In vitro experiments, RSV treatment also clearly protected primary cortical neurons against oxyHb insults, including reduced the proportion of neuronal apoptosis, alleviated neuronal degeneration, and improved cell viabilities. These in vitro data further confirm that RSV has an efficient neuroprotection against SAH. Taken together, these in vivo and in vitro findings suggested RSV could protect against EBI after SAH, at least partially via inhibiting NLRP3 inflammasome signaling pathway.
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Affiliation(s)
- Xiangsheng Zhang
- Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - Qi Wu
- Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - Qingrong Zhang
- Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - Yue Lu
- Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - Jingpeng Liu
- Department of Neurosurgery, Jinling Hospital, School of Medicine, Southern Medical University, Nanjing, China
| | - Wei Li
- Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - Shengyin Lv
- Department of Neurosurgery, Jinling Hospital, School of Medicine, Southern Medical University, Nanjing, China
| | - Mengliang Zhou
- Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - Xin Zhang
- Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China.,Department of Neurosurgery, Jinling Hospital, School of Medicine, Southern Medical University, Nanjing, China
| | - Chunhua Hang
- Department of Neurosurgery, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China.,Department of Neurosurgery, Jinling Hospital, School of Medicine, Southern Medical University, Nanjing, China
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47
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Koronowski KB, Khoury N, Saul I, Loris ZB, Cohan CH, Stradecki-Cohan HM, Dave KR, Young JI, Perez-Pinzon MA. Neuronal SIRT1 (Silent Information Regulator 2 Homologue 1) Regulates Glycolysis and Mediates Resveratrol-Induced Ischemic Tolerance. Stroke 2017; 48:3117-3125. [PMID: 29018134 PMCID: PMC5654689 DOI: 10.1161/strokeaha.117.018562] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 09/06/2017] [Accepted: 09/13/2017] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND PURPOSE Resveratrol, at least in part via SIRT1 (silent information regulator 2 homologue 1) activation, protects against cerebral ischemia when administered 2 days before injury. However, it remains unclear if SIRT1 activation must occur, and in which brain cell types, for the induction of neuroprotection. We hypothesized that neuronal SIRT1 is essential for resveratrol-induced ischemic tolerance and sought to characterize the metabolic pathways regulated by neuronal Sirt1 at the cellular level in the brain. METHODS We assessed infarct size and functional outcome after transient 60 minute middle cerebral artery occlusion in control and inducible, neuronal-specific SIRT1 knockout mice. Nontargeted primary metabolomics analysis identified putative SIRT1-regulated pathways in brain. Glycolytic function was evaluated in acute brain slices from adult mice and primary neuronal-enriched cultures under ischemic penumbra-like conditions. RESULTS Resveratrol-induced neuroprotection from stroke was lost in neuronal Sirt1 knockout mice. Metabolomics analysis revealed alterations in glucose metabolism on deletion of neuronal Sirt1, accompanied by transcriptional changes in glucose metabolism machinery. Furthermore, glycolytic ATP production was impaired in acute brain slices from neuronal Sirt1 knockout mice. Conversely, resveratrol increased glycolytic rate in a SIRT1-dependent manner and under ischemic penumbra-like conditions in vitro. CONCLUSIONS Our data demonstrate that resveratrol requires neuronal SIRT1 to elicit ischemic tolerance and identify a novel role for SIRT1 in the regulation of glycolytic function in brain. Identification of robust neuroprotective mechanisms that underlie ischemia tolerance and the metabolic adaptations mediated by SIRT1 in brain are crucial for the translation of therapies in cerebral ischemia and other neurological disorders.
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Affiliation(s)
- Kevin B Koronowski
- From the Cerebral Vascular Disease Research Laboratories (K.B.K., N.K., I.S., C.H.C., H.M.S.-C., K.R.D., M.A.P.-P.), Department of Neurology (K.B.K., N.K., I.S., C.H.C., H.M.S.-C., K.R.D., M.A.P.-P.), The Miami Project to Cure Paralysis (Z.B.L.), Department of Neurological Surgery (Z.B.L.), John P. Hussman Institute for Human Genomics (J.I.Y.) and Department of Human Genetics (J.I.Y.), University of Miami Leonard M. Miller School of Medicine, FL
| | - Nathalie Khoury
- From the Cerebral Vascular Disease Research Laboratories (K.B.K., N.K., I.S., C.H.C., H.M.S.-C., K.R.D., M.A.P.-P.), Department of Neurology (K.B.K., N.K., I.S., C.H.C., H.M.S.-C., K.R.D., M.A.P.-P.), The Miami Project to Cure Paralysis (Z.B.L.), Department of Neurological Surgery (Z.B.L.), John P. Hussman Institute for Human Genomics (J.I.Y.) and Department of Human Genetics (J.I.Y.), University of Miami Leonard M. Miller School of Medicine, FL
| | - Isabel Saul
- From the Cerebral Vascular Disease Research Laboratories (K.B.K., N.K., I.S., C.H.C., H.M.S.-C., K.R.D., M.A.P.-P.), Department of Neurology (K.B.K., N.K., I.S., C.H.C., H.M.S.-C., K.R.D., M.A.P.-P.), The Miami Project to Cure Paralysis (Z.B.L.), Department of Neurological Surgery (Z.B.L.), John P. Hussman Institute for Human Genomics (J.I.Y.) and Department of Human Genetics (J.I.Y.), University of Miami Leonard M. Miller School of Medicine, FL
| | - Zachary B Loris
- From the Cerebral Vascular Disease Research Laboratories (K.B.K., N.K., I.S., C.H.C., H.M.S.-C., K.R.D., M.A.P.-P.), Department of Neurology (K.B.K., N.K., I.S., C.H.C., H.M.S.-C., K.R.D., M.A.P.-P.), The Miami Project to Cure Paralysis (Z.B.L.), Department of Neurological Surgery (Z.B.L.), John P. Hussman Institute for Human Genomics (J.I.Y.) and Department of Human Genetics (J.I.Y.), University of Miami Leonard M. Miller School of Medicine, FL
| | - Charles H Cohan
- From the Cerebral Vascular Disease Research Laboratories (K.B.K., N.K., I.S., C.H.C., H.M.S.-C., K.R.D., M.A.P.-P.), Department of Neurology (K.B.K., N.K., I.S., C.H.C., H.M.S.-C., K.R.D., M.A.P.-P.), The Miami Project to Cure Paralysis (Z.B.L.), Department of Neurological Surgery (Z.B.L.), John P. Hussman Institute for Human Genomics (J.I.Y.) and Department of Human Genetics (J.I.Y.), University of Miami Leonard M. Miller School of Medicine, FL
| | - Holly M Stradecki-Cohan
- From the Cerebral Vascular Disease Research Laboratories (K.B.K., N.K., I.S., C.H.C., H.M.S.-C., K.R.D., M.A.P.-P.), Department of Neurology (K.B.K., N.K., I.S., C.H.C., H.M.S.-C., K.R.D., M.A.P.-P.), The Miami Project to Cure Paralysis (Z.B.L.), Department of Neurological Surgery (Z.B.L.), John P. Hussman Institute for Human Genomics (J.I.Y.) and Department of Human Genetics (J.I.Y.), University of Miami Leonard M. Miller School of Medicine, FL
| | - Kunjan R Dave
- From the Cerebral Vascular Disease Research Laboratories (K.B.K., N.K., I.S., C.H.C., H.M.S.-C., K.R.D., M.A.P.-P.), Department of Neurology (K.B.K., N.K., I.S., C.H.C., H.M.S.-C., K.R.D., M.A.P.-P.), The Miami Project to Cure Paralysis (Z.B.L.), Department of Neurological Surgery (Z.B.L.), John P. Hussman Institute for Human Genomics (J.I.Y.) and Department of Human Genetics (J.I.Y.), University of Miami Leonard M. Miller School of Medicine, FL
| | - Juan I Young
- From the Cerebral Vascular Disease Research Laboratories (K.B.K., N.K., I.S., C.H.C., H.M.S.-C., K.R.D., M.A.P.-P.), Department of Neurology (K.B.K., N.K., I.S., C.H.C., H.M.S.-C., K.R.D., M.A.P.-P.), The Miami Project to Cure Paralysis (Z.B.L.), Department of Neurological Surgery (Z.B.L.), John P. Hussman Institute for Human Genomics (J.I.Y.) and Department of Human Genetics (J.I.Y.), University of Miami Leonard M. Miller School of Medicine, FL
| | - Miguel A Perez-Pinzon
- From the Cerebral Vascular Disease Research Laboratories (K.B.K., N.K., I.S., C.H.C., H.M.S.-C., K.R.D., M.A.P.-P.), Department of Neurology (K.B.K., N.K., I.S., C.H.C., H.M.S.-C., K.R.D., M.A.P.-P.), The Miami Project to Cure Paralysis (Z.B.L.), Department of Neurological Surgery (Z.B.L.), John P. Hussman Institute for Human Genomics (J.I.Y.) and Department of Human Genetics (J.I.Y.), University of Miami Leonard M. Miller School of Medicine, FL.
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How does hormesis impact biology, toxicology, and medicine? NPJ Aging Mech Dis 2017; 3:13. [PMID: 28944077 PMCID: PMC5601424 DOI: 10.1038/s41514-017-0013-z] [Citation(s) in RCA: 273] [Impact Index Per Article: 39.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Revised: 07/13/2017] [Accepted: 08/16/2017] [Indexed: 12/22/2022] Open
Abstract
Hormesis refers to adaptive responses of biological systems to moderate environmental or self-imposed challenges through which the system improves its functionality and/or tolerance to more severe challenges. The past two decades have witnessed an expanding recognition of the concept of hormesis, elucidation of its evolutionary foundations, and underlying cellular and molecular mechanisms, and practical applications to improve quality of life. To better inform future basic and applied research, we organized and re-evaluated recent hormesis-related findings with the intent of incorporating new knowledge of biological mechanisms, and providing fundamental insights into the biological, biomedical and risk assessment implications of hormesis. As the literature on hormesis is expanding rapidly into new areas of basic and applied research, it is important to provide refined conceptualization of hormesis to aid in designing and interpreting future studies. Here, we establish a working compartmentalization of hormesis into ten categories that provide an integrated understanding of the biological meaning and applications of hormesis.
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Loris ZB, Hynton JR, Pieper AA, Dietrich WD. Beneficial Effects of Delayed P7C3-A20 Treatment After Transient MCAO in Rats. Transl Stroke Res 2017; 9:146-156. [PMID: 28842830 DOI: 10.1007/s12975-017-0565-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Revised: 08/10/2017] [Accepted: 08/11/2017] [Indexed: 01/15/2023]
Abstract
Despite ischemic stroke being the fifth leading cause of death in the USA, there are few therapeutic options available. We recently showed that the neuroprotective compound P7C3-A20 reduced brain atrophy, increased neurogenesis, and improved functional recovery when treatment was initiated immediately post-reperfusion after a 90-min middle cerebral artery occlusion (MCAO). In the present study, we investigated a more clinically relevant therapeutic window for P7C3-A20 treatment after ischemic stroke. MCAO rats were administered P7C3-A20 for 1 week, beginning immediately or at a delayed point, 6 h post-reperfusion. Delayed P7C3-A20 treatment significantly improved stroke-induced sensorimotor deficits in motor coordination and symmetry, as well as cognitive deficits in hippocampal-dependent spatial learning, memory retention, and working memory. In the cerebral cortex, delayed P7C3-A20 treatment significantly increased tissue sparing 7 weeks after stroke and reduced hemispheric infarct volumes 48 h after reperfusion. Despite no reduction in striatal infarct volumes acutely, there was a significant increase in spared tissue volume chronically. In the hippocampus, only immediately treated P7C3-A20 animals had a significant increase in tissue sparing compared to vehicle-treated stroke animals. This structural protection translated into minimal hippocampal-dependent behavioral improvements with delayed P7C3-A20 treatment. However, all rats treated with delayed P7C3-A20 demonstrated a significant improvement in both sensorimotor tasks compared to vehicle controls, suggesting a somatosensory-driven recovery. These results demonstrate that P7C3-A20 improves chronic functional and histopathological outcomes after ischemic stroke with an extended therapeutic window.
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Affiliation(s)
- Zachary B Loris
- Department of Neurological Surgery, Neuroscience Program, University of Miami Miller School of Medicine, Miami, FL, USA.,The Miami Project to Cure Paralysis, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Justin R Hynton
- Department of Neurological Surgery, Neuroscience Program, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Andrew A Pieper
- Department of Psychiatry, College of Medicine, University of Iowa Carver College of Medicine, 169 Newton Road, Iowa City, IA, 52242, USA. .,Department of Neurology, University of Iowa Carver College of Medicine, 169 Newton Road, Iowa City, IA, 52242, USA. .,Department of Free Radical and Radiation Biology Program, Department of Radiation Oncology Comprehensive Cancer Center, Department of Veterans Affairs, University of Iowa Carver College of Medicine, 169 Newton Road, Iowa City, IA, 52242, USA.
| | - W Dalton Dietrich
- Department of Neurological Surgery, Neuroscience Program, University of Miami Miller School of Medicine, Miami, FL, USA. .,The Miami Project to Cure Paralysis, University of Miami Miller School of Medicine, Miami, FL, USA. .,Department of Neurological Surgery, University of Miami, Leonard M. Miller School of Medicine, 1095 NW 14th Terrace, Suite 2-30, Miami, FL, 33136-1060, USA.
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She DT, Jo DG, Arumugam TV. Emerging Roles of Sirtuins in Ischemic Stroke. Transl Stroke Res 2017; 8:10.1007/s12975-017-0544-4. [PMID: 28656393 DOI: 10.1007/s12975-017-0544-4] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Revised: 06/02/2017] [Accepted: 06/06/2017] [Indexed: 12/13/2022]
Abstract
Ischemic stroke is one of the leading causes of death worldwide. It is characterized by a sudden disruption of blood flow to the brain causing cell death and damage, which will lead to neurological impairments. In the current state, only one drug is approved to be used in clinical setting and new therapies that confer ischemic neuroprotection are desperately needed. Several targets and pathways have been indicated to be neuroprotective in ischemic stroke, among which the sirtuin family of nicotinamide adenine dinucleotide (NAD+)-dependent deacetylases has emerged as important modulators of several processes in the normal physiology and pathological conditions such as stroke. Recent studies have identified some members of the sirtuin family are able to ameliorate the devastating consequences of ischemic stroke by conferring neuroprotection by means of reducing neuronal cell death, oxidative stress, and neuroinflammation whereas some sirtuins are found to be detrimental in the pathophysiology of ischemic stroke. This review summarizes implications of sirtuins in ischemic stroke and the experimental evidences that demonstrate the potential of sirtuin modulators as neuroprotective therapy for ischemic stroke.
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Affiliation(s)
- David T She
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
- Neurobiology/Ageing Programme, Life Sciences Institute, National University of Singapore, Singapore, 117456, Singapore
| | - Dong-Gyu Jo
- School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Thiruma V Arumugam
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore.
- Neurobiology/Ageing Programme, Life Sciences Institute, National University of Singapore, Singapore, 117456, Singapore.
- School of Pharmacy, Sungkyunkwan University, Suwon, 16419, Republic of Korea.
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