1
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Jin X, Sun X, Ma X, Qin Z, Gao X, Kang X, Li H, Sun H. SIRT1 maintains bone homeostasis by regulating osteoblast glycolysis through GOT1. Cell Mol Life Sci 2024; 81:204. [PMID: 38700532 PMCID: PMC11072260 DOI: 10.1007/s00018-023-05043-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 10/02/2023] [Accepted: 11/07/2023] [Indexed: 05/24/2024]
Abstract
The silent information regulator T1 (SIRT1) is linked to longevity and is a crucial mediator of osteoblast function. We investigated the direct role of Sirt1 during bone modeling and remodeling stages in vivo using Tamoxifen-inducible osteoblast-specific Sirt1 conditional knockout (cKO) mice. cKO mice exhibited lower trabecular and cortical bone mass in the distal femur. These phenotypes were coupled with lower bone formation and bone resorption. Metabolomics analysis revealed that the metabolites involved in glycolysis were significantly decreased in cKO mice. Further analysis of the quantitative acetylome revealed 11 proteins with upregulated acetylation levels in both the femur and calvaria of cKO mice. Cross-analysis identified four proteins with the same upregulated lysine acetylation site in both the femur and calvaria of cKO mice. A combined analysis of the metabolome and acetylome, as well as immunoprecipitation, gene knockout, and site-mutation experiments, revealed that Sirt1 deletion inhibited glycolysis by directly binding to and increasing the acetylation level of Glutamine oxaloacetic transaminase 1 (GOT1). In conclusion, our study suggested that Sirt1 played a crucial role in regulating osteoblast metabolism to maintain bone homeostasis through its deacetylase activity on GOT1. These findings provided a novel insight into the potential targeting of osteoblast metabolism for the treatment of bone-related diseases.
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Affiliation(s)
- Xinxin Jin
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, Shaanxi, China.
| | - Xulei Sun
- Center for Translational Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
| | - Xiao Ma
- Center for Translational Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
| | - Zixuan Qin
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, Shaanxi, China
| | - Xin Gao
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, Shaanxi, China
| | - Xiaomin Kang
- Center for Translational Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
| | - Huixia Li
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, Shaanxi, China
| | - Hongzhi Sun
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, Shaanxi, China.
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2
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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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3
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Zhang F, Lv T, Li J, Lian J, Wu H, Jin Y, Jia F, Zhang X. Citrate synthase lysine K215 hypoacetylation contributes to microglial citrate accumulation and pro-inflammatory functions after traumatic brain injury. CNS Neurosci Ther 2024; 30:e14567. [PMID: 38421106 PMCID: PMC10851320 DOI: 10.1111/cns.14567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 11/25/2023] [Accepted: 12/02/2023] [Indexed: 03/02/2024] Open
Abstract
AIMS This study aimed to investigate the relationship between microglial metabolism and neuroinflammation by examining the impact of citrate accumulation in microglia and its potential regulation through Cs K215 hypoacetylation. METHODS Experimental approaches included assessing Cs enzyme activity through Cs K215Q mutation and investigating the inhibitory effects of hesperidin, a natural flavanone glycoside, on citrate synthase. Microglial phagocytosis and expression of pro-inflammatory cytokines were also examined in relation to Cs K215Q mutation and hesperidin treatment. RESULTS Cs K215Q mutation and hesperidin exhibited significant inhibitory effects on Cs enzyme activity, microglial citrate accumulation, phagocytosis, and pro-inflammatory cytokine expression. Interestingly, Sirt3 knockdown aggravated microglial pro-inflammatory functions during neuroinflammation, despite its proven role in Cs deacetylation. CONCLUSION Cs K215Q mutation and hesperidin effectively inhibited microglial pro-inflammatory functions without reversing the metabolic reprogramming. These findings suggest that targeting Cs K215 hypoacetylation and utilizing hesperidin may hold promise for modulating neuroinflammation in microglia.
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Affiliation(s)
- Fengchen Zhang
- Department of NeurosurgeryRen Ji Hospital, Shanghai Jiao Tong University School of MedicineShanghaiChina
| | - Tao Lv
- Department of NeurosurgeryRen Ji Hospital, Shanghai Jiao Tong University School of MedicineShanghaiChina
| | - Jie Li
- Department of NeurosurgeryRen Ji Hospital, Shanghai Jiao Tong University School of MedicineShanghaiChina
| | - Jie Lian
- Department of NeurosurgeryRen Ji Hospital, Shanghai Jiao Tong University School of MedicineShanghaiChina
| | - Hui Wu
- Department of NeurosurgeryRen Ji Hospital, Shanghai Jiao Tong University School of MedicineShanghaiChina
| | - Yichao Jin
- Department of NeurosurgeryRen Ji Hospital, Shanghai Jiao Tong University School of MedicineShanghaiChina
| | - Feng Jia
- Department of NeurosurgeryRen Ji Hospital, Shanghai Jiao Tong University School of MedicineShanghaiChina
- Department of NeurosurgeryNantong First People's Hospital, Affiliated Hospital 2 of Nantong UniversityNantongChina
| | - Xiaohua Zhang
- Department of NeurosurgeryRen Ji Hospital, Shanghai Jiao Tong University School of MedicineShanghaiChina
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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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5
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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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6
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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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7
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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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8
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Jiang TT, Ji CL, Yu LJ, Song MK, Li Y, Liao Q, Wei T, Olatunji OJ, Zuo J, Han J. Resveratrol-induced SIRT1 activation inhibits glycolysis-fueled angiogenesis under rheumatoid arthritis conditions independent of HIF-1α. Inflamm Res 2023; 72:1021-1035. [PMID: 37016140 DOI: 10.1007/s00011-023-01728-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 03/22/2023] [Accepted: 03/28/2023] [Indexed: 04/06/2023] Open
Abstract
OBJECTIVE This study investigated the impacts of SIRT1 activation on rheumatoid arthritis (RA)-related angiogenesis. METHODS HUVECs were cultured by different human serum. Intracellular metabolites were quantified by UPLC-MS. Next, HUVECs and rat vascular epithelial cells under different inflammatory conditions were treated by a SIRT1 agonist resveratrol (RSV). Cytokines and biochemical indicators were detected by corresponding kits. Protein and mRNA expression levels were assessed by immunoblotting and PCR methods, respectively. Angiogenesis capabilities were evaluated by migration, wound-healing and tube-formation experiments. To down-regulate certain signals, gene-specific siRNA were applied. RESULTS Metabolomics study revealed the accelerated glycolysis in RA serum-treated HUVECs. It led to ATP accumulation, but did not affect GTP levels. RSV inhibited pro-angiogenesis cytokines production and glycolysis in both the cells, and impaired the angiogenesis potentials. These effects were mimicked by an energy metabolism interrupter bikini in lipopolysaccharide (LPS)-primed HUVECs, largely independent of HIF-1α. Both RSV and bikinin can inhibit the activation of the GTP-dependent pathway Rho/ROCK and reduce VEGF production. Abrogation of RhoA signaling reinforced HIF-1α silencing-brought changes in LPS-stimulated HUVECs, and overshadowed the anti-angiogenesis potentials of RSV. CONCLUSION Glycolysis provides additional energy to sustain Rho/ROCK activation in RA subjects, which promotes VEGF-driven angiogenesis and can be inhibited by SIRT1 activation.
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Affiliation(s)
- Tian-Tian Jiang
- Xin'an Medicine Research Center, The First Affiliated Hospital of Wannan Medical College (Yijishan Hospital), Wuhu, 241000, China
| | - Cong-Lan Ji
- School of Pharmacy, Anhui College of Traditional Chinese Medicine, Wuhu, 241000, China
| | - Li-Jun Yu
- Xin'an Medicine Research Center, The First Affiliated Hospital of Wannan Medical College (Yijishan Hospital), Wuhu, 241000, China
- Research Center of Integration of Traditional Chinese and Western Medicine, Wannan Medical College, Wuhu, China
| | - Meng-Ke Song
- Xin'an Medicine Research Center, The First Affiliated Hospital of Wannan Medical College (Yijishan Hospital), Wuhu, 241000, China
- Research Center of Integration of Traditional Chinese and Western Medicine, Wannan Medical College, Wuhu, China
| | - Yan Li
- Xin'an Medicine Research Center, The First Affiliated Hospital of Wannan Medical College (Yijishan Hospital), Wuhu, 241000, China
| | - Qiang Liao
- Xin'an Medicine Research Center, The First Affiliated Hospital of Wannan Medical College (Yijishan Hospital), Wuhu, 241000, China
- Research Center of Integration of Traditional Chinese and Western Medicine, Wannan Medical College, Wuhu, China
| | - Tuo Wei
- Xin'an Medicine Research Center, The First Affiliated Hospital of Wannan Medical College (Yijishan Hospital), Wuhu, 241000, China
| | | | - Jian Zuo
- Xin'an Medicine Research Center, The First Affiliated Hospital of Wannan Medical College (Yijishan Hospital), Wuhu, 241000, China.
- Center for Xin'an Medicine and Modernization of Traditional Chinese Medicine, Institution of Health and Medicine, Hefei Comprehensive National Science Center, Hefei, 230000, China.
- Anhui Provincial Engineering Laboratory for Screening and Re-Evaluation of Active Compounds of Herbal Medicines in Southern Anhui, Wuhu, 241000, China.
| | - Jun Han
- Anhui Provincial Engineering Laboratory for Screening and Re-Evaluation of Active Compounds of Herbal Medicines in Southern Anhui, Wuhu, 241000, China.
- School of Pharmacy, Wannan Medical College, Wuhu, 241000, China.
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López-Morales MA, Escobar I, Saul I, Jackson CW, Ferrier FJ, Fagerli EA, Raval AP, Dave KR, Perez-Pinzon MA. Resveratrol Preconditioning Mitigates Ischemia-Induced Septal Cholinergic Cell Loss and Memory Impairments. Stroke 2023; 54:1099-1109. [PMID: 36912143 DOI: 10.1161/strokeaha.122.040899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 01/10/2023] [Indexed: 03/14/2023]
Abstract
BACKGROUND Cholinergic cells originating from the nuclei of the basal forebrain (BF) are critical for supporting various memory processes, yet BF cholinergic cell viability has not been explored in the context of focal cerebral ischemia. In the present study, we examined cell survival within several BF nuclei in rodents following transient middle cerebral artery occlusion. We tested the hypothesis that a previously established neuroprotective therapy-resveratrol preconditioning-would rescue BF cell loss, deficits in cholinergic-related memory performance, and hippocampal synaptic dysfunction after focal cerebral ischemia. METHODS Adult (2-3-month old) male Sprague-Dawley rats or wild-type C57Bl/6J mice were injected intraperitoneally with a single dose of resveratrol or vehicle and subjected to transient middle cerebral artery occlusion using the intraluminal suture method 2 days later. Histopathological, behavioral, and electrophysiological outcomes were measured 1-week post-reperfusion. Animals with reduction in cerebral blood flow <30% of baseline were excluded. RESULTS Cholinergic cell loss was observed in the medial septal nucleus and diagonal band of Broca following transient middle cerebral artery occlusion. This effect was prevented by resveratrol preconditioning, which also ameliorated transient middle cerebral artery occlusion-induced deficits in cognitive performance and hippocampal long-term potentiation. CONCLUSIONS We demonstrate for the first time that focal cerebral ischemia induces cholinergic cell death within memory-relevant nuclei of the BF. The preservation of cholinergic cell viability may provide a mechanism by which resveratrol preconditioning improves memory performance and preserves functionality of memory-processing brain structures after focal cerebral ischemia.
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Affiliation(s)
- Mikahela A López-Morales
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratories (M.A.L.-M., I.E., I.S., C.W.J., F.J.F., E.A.F., A.P.R., K.R.D., M.A.P.-P.), University of Miami Leonard M. Miller School of Medicine, FL
- Department of Neurology (M.A.L.-M., I.E., I.S., C.W.J., F.J.F., E.A.F., A.P.R., K.R.D., M.A.P.-P.), University of Miami Leonard M. Miller School of Medicine, FL
| | - Iris Escobar
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratories (M.A.L.-M., I.E., I.S., C.W.J., F.J.F., E.A.F., A.P.R., K.R.D., M.A.P.-P.), University of Miami Leonard M. Miller School of Medicine, FL
- Department of Neurology (M.A.L.-M., I.E., I.S., C.W.J., F.J.F., E.A.F., A.P.R., K.R.D., M.A.P.-P.), University of Miami Leonard M. Miller School of Medicine, FL
- Neuroscience Program (I.E., C.W.J., F.J.F., E.A.F., A.P.R., K.R.D., M.A.P.-P.), University of Miami Leonard M. Miller School of Medicine, FL
| | - Isabel Saul
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratories (M.A.L.-M., I.E., I.S., C.W.J., F.J.F., E.A.F., A.P.R., K.R.D., M.A.P.-P.), University of Miami Leonard M. Miller School of Medicine, FL
- Department of Neurology (M.A.L.-M., I.E., I.S., C.W.J., F.J.F., E.A.F., A.P.R., K.R.D., M.A.P.-P.), University of Miami Leonard M. Miller School of Medicine, FL
| | - Charles W Jackson
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratories (M.A.L.-M., I.E., I.S., C.W.J., F.J.F., E.A.F., A.P.R., K.R.D., M.A.P.-P.), University of Miami Leonard M. Miller School of Medicine, FL
- Department of Neurology (M.A.L.-M., I.E., I.S., C.W.J., F.J.F., E.A.F., A.P.R., K.R.D., M.A.P.-P.), University of Miami Leonard M. Miller School of Medicine, FL
- Neuroscience Program (I.E., C.W.J., F.J.F., E.A.F., A.P.R., K.R.D., M.A.P.-P.), University of Miami Leonard M. Miller School of Medicine, FL
| | - Fernando J Ferrier
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratories (M.A.L.-M., I.E., I.S., C.W.J., F.J.F., E.A.F., A.P.R., K.R.D., M.A.P.-P.), University of Miami Leonard M. Miller School of Medicine, FL
- Department of Neurology (M.A.L.-M., I.E., I.S., C.W.J., F.J.F., E.A.F., A.P.R., K.R.D., M.A.P.-P.), University of Miami Leonard M. Miller School of Medicine, FL
- Neuroscience Program (I.E., C.W.J., F.J.F., E.A.F., A.P.R., K.R.D., M.A.P.-P.), University of Miami Leonard M. Miller School of Medicine, FL
| | - Eric A Fagerli
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratories (M.A.L.-M., I.E., I.S., C.W.J., F.J.F., E.A.F., A.P.R., K.R.D., M.A.P.-P.), University of Miami Leonard M. Miller School of Medicine, FL
- Department of Neurology (M.A.L.-M., I.E., I.S., C.W.J., F.J.F., E.A.F., A.P.R., K.R.D., M.A.P.-P.), University of Miami Leonard M. Miller School of Medicine, FL
- Neuroscience Program (I.E., C.W.J., F.J.F., E.A.F., A.P.R., K.R.D., M.A.P.-P.), University of Miami Leonard M. Miller School of Medicine, FL
| | - Ami P Raval
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratories (M.A.L.-M., I.E., I.S., C.W.J., F.J.F., E.A.F., A.P.R., K.R.D., M.A.P.-P.), University of Miami Leonard M. Miller School of Medicine, FL
- Department of Neurology (M.A.L.-M., I.E., I.S., C.W.J., F.J.F., E.A.F., A.P.R., K.R.D., M.A.P.-P.), University of Miami Leonard M. Miller School of Medicine, FL
- Neuroscience Program (I.E., C.W.J., F.J.F., E.A.F., A.P.R., K.R.D., M.A.P.-P.), University of Miami Leonard M. Miller School of Medicine, FL
| | - Kunjan R Dave
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratories (M.A.L.-M., I.E., I.S., C.W.J., F.J.F., E.A.F., A.P.R., K.R.D., M.A.P.-P.), University of Miami Leonard M. Miller School of Medicine, FL
- Department of Neurology (M.A.L.-M., I.E., I.S., C.W.J., F.J.F., E.A.F., A.P.R., K.R.D., M.A.P.-P.), University of Miami Leonard M. Miller School of Medicine, FL
- Neuroscience Program (I.E., C.W.J., F.J.F., E.A.F., A.P.R., K.R.D., M.A.P.-P.), University of Miami Leonard M. Miller School of Medicine, FL
| | - Miguel A Perez-Pinzon
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratories (M.A.L.-M., I.E., I.S., C.W.J., F.J.F., E.A.F., A.P.R., K.R.D., M.A.P.-P.), University of Miami Leonard M. Miller School of Medicine, FL
- Department of Neurology (M.A.L.-M., I.E., I.S., C.W.J., F.J.F., E.A.F., A.P.R., K.R.D., M.A.P.-P.), University of Miami Leonard M. Miller School of Medicine, FL
- Neuroscience Program (I.E., C.W.J., F.J.F., E.A.F., A.P.R., K.R.D., M.A.P.-P.), University of Miami Leonard M. Miller School of Medicine, FL
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Macrophage/Microglia Sirt3 Contributes to the Anti-inflammatory Effects of Resveratrol Against Experimental Intracerebral Hemorrhage in Mice. Cell Mol Neurobiol 2023:10.1007/s10571-023-01325-9. [PMID: 36786945 DOI: 10.1007/s10571-023-01325-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Accepted: 01/28/2023] [Indexed: 02/15/2023]
Abstract
Intracerebral hemorrhage (ICH) is a devastating stroke type with high mortality and disability. Inflammatory response induced by macrophages/microglia (M/Ms) activation is one of the leading causes of brain damage after ICH. The anti-inflammatory effects of resveratrol (RSV) have already been evaluated in several models of central nervous system disease. Therefore, we designed the current study to assess the role of RSV in ICH and explore its downstream mechanism related to Sirt3. The autologous artery blood injection was administrated to create an ICH mouse model. M/Ms-specific Sirt3 knockout Sirt3f/f; CX3CR1-Cre (Sirt3 cKO) mouse was used to evaluate the role of Sirt3 on RSV treatment. Neuronal function and hematoma volume were assessed to indicate brain damage. The pro-inflammatory marker (CD16) and cytokine (TNF) were measured to evaluate the inflammatory effects. Our results showed that RSV treatment alleviates neurological deficits, reduces cell death, and increases hematoma clearance on day 7 after ICH. In addition, RSV effectively suppressed CD16+ M/Ms activation and decreased TNF release. In Sirt3 cKO mice, the protective effects of RSV were abolished, indicating the potential mechanism of RSV was partially due to Sirt3 signaling activation. Therefore, RSV could be a promising candidate and therapeutic agent for ICH and Sirt3 could be a potential target to inhibit inflammation.
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11
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He S, Zambelli VO, Sinharoy P, Brabenec L, Bian Y, Rwere F, Hell RC, Stein Neto B, Hung B, Yu X, Zhao M, Luo Z, Wu C, Xu L, Svensson KJ, McAllister SL, Stary CM, Wagner NM, Zhang Y, Gross ER. A human TRPV1 genetic variant within the channel gating domain regulates pain sensitivity in rodents. J Clin Invest 2023; 133:163735. [PMID: 36472910 PMCID: PMC9888391 DOI: 10.1172/jci163735] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 11/29/2022] [Indexed: 12/12/2022] Open
Abstract
Pain signals are relayed to the brain via a nociceptive system, and in rare cases, this nociceptive system contains genetic variants that can limit the pain response. Here, we questioned whether a human transient receptor potential vanilloid 1 (TRPV1) missense variant causes a resistance to noxious stimuli and, further, whether we could target this region with a cell-permeable peptide as a pain therapeutic. Initially using a computational approach, we identified a human K710N TRPV1 missense variant in an otherwise highly conserved region of mammalian TRPV1. After generating a TRPV1K710N-knockin mouse using CRISPR/Cas9, we discovered that the K710N variant reduced capsaicin-induced calcium influx in dorsal root ganglion neurons. The TRPV1K710N rodents also had less acute behavioral responses to noxious chemical stimuli and less hypersensitivity to nerve injury, while their response to noxious heat remained intact. Furthermore, blocking this K710 region in WT rodents using a cell-penetrating peptide limited acute behavioral responses to noxious stimuli and returned pain hypersensitivity induced by nerve injury to baseline levels. These findings identify K710 TRPV1 as a discrete site that is crucial for the control of nociception and provide insights into how to leverage rare genetic variants in humans to uncover fresh strategies for developing pain therapeutics.
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Affiliation(s)
- Shufang He
- Department of Anesthesiology and Perioperative Medicine, the Second Hospital of Anhui Medical University, Key Laboratory of Anesthesiology and Perioperative Medicine of Anhui Higher Education Institutes, Anhui Medical University, Hefei, China.,Department of Anesthesiology, Perioperative and Pain Medicine, School of Medicine, Stanford University, Stanford, California, USA
| | - Vanessa O. Zambelli
- Department of Anesthesiology, Perioperative and Pain Medicine, School of Medicine, Stanford University, Stanford, California, USA.,Laboratory of Pain and Signaling, Butantan Institute, Sāo Paulo, Brazil
| | - Pritam Sinharoy
- Department of Anesthesiology, Perioperative and Pain Medicine, School of Medicine, Stanford University, Stanford, California, USA
| | - Laura Brabenec
- Department of Anesthesiology, Intensive Care and Pain Medicine, University Hospital Muenster, Muenster, Germany
| | - Yang Bian
- Department of Anesthesiology, Perioperative and Pain Medicine, School of Medicine, Stanford University, Stanford, California, USA
| | - Freeborn Rwere
- Department of Anesthesiology, Perioperative and Pain Medicine, School of Medicine, Stanford University, Stanford, California, USA
| | - Rafaela C.R. Hell
- Department of Anesthesiology, Perioperative and Pain Medicine, School of Medicine, Stanford University, Stanford, California, USA
| | - Beatriz Stein Neto
- Department of Anesthesiology, Perioperative and Pain Medicine, School of Medicine, Stanford University, Stanford, California, USA.,Laboratory of Pain and Signaling, Butantan Institute, Sāo Paulo, Brazil
| | - Barbara Hung
- Department of Anesthesiology, Perioperative and Pain Medicine, School of Medicine, Stanford University, Stanford, California, USA
| | - Xuan Yu
- Department of Anesthesiology, Perioperative and Pain Medicine, School of Medicine, Stanford University, Stanford, California, USA
| | - Meng Zhao
- Department of Pathology, ,Stanford Diabetes Research Center, and,Stanford Cardiovascular Institute, School of Medicine, Stanford University, Stanford, California, USA
| | - Zhaofei Luo
- Department of Anesthesiology and Perioperative Medicine, the Second Hospital of Anhui Medical University, Key Laboratory of Anesthesiology and Perioperative Medicine of Anhui Higher Education Institutes, Anhui Medical University, Hefei, China
| | - Chao Wu
- Department of Anesthesiology and Perioperative Medicine, the Second Hospital of Anhui Medical University, Key Laboratory of Anesthesiology and Perioperative Medicine of Anhui Higher Education Institutes, Anhui Medical University, Hefei, China
| | - Lijun Xu
- Department of Anesthesiology, Perioperative and Pain Medicine, School of Medicine, Stanford University, Stanford, California, USA
| | - Katrin J. Svensson
- Department of Pathology, ,Stanford Diabetes Research Center, and,Stanford Cardiovascular Institute, School of Medicine, Stanford University, Stanford, California, USA
| | - Stacy L. McAllister
- Department of Anesthesiology, Perioperative and Pain Medicine, School of Medicine, Stanford University, Stanford, California, USA.,Department of Obstetrics and Gynecology, School of Medicine, Emory University, Atlanta, Georgia, USA
| | - Creed M. Stary
- Department of Anesthesiology, Perioperative and Pain Medicine, School of Medicine, Stanford University, Stanford, California, USA
| | - Nana-Maria Wagner
- Department of Anesthesiology, Intensive Care and Pain Medicine, University Hospital Muenster, Muenster, Germany
| | - Ye Zhang
- Department of Anesthesiology and Perioperative Medicine, the Second Hospital of Anhui Medical University, Key Laboratory of Anesthesiology and Perioperative Medicine of Anhui Higher Education Institutes, Anhui Medical University, Hefei, China
| | - Eric R. Gross
- Department of Anesthesiology, Perioperative and Pain Medicine, School of Medicine, Stanford University, Stanford, California, USA.,Stanford Diabetes Research Center, and,Stanford Cardiovascular Institute, School of Medicine, Stanford University, Stanford, California, USA
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12
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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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13
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Roumes H, Goudeneche P, Pellerin L, Bouzier-Sore AK. Resveratrol and Some of Its Derivatives as Promising Prophylactic Treatments for Neonatal Hypoxia-Ischemia. Nutrients 2022; 14:nu14183793. [PMID: 36145168 PMCID: PMC9501144 DOI: 10.3390/nu14183793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 09/08/2022] [Accepted: 09/09/2022] [Indexed: 11/16/2022] Open
Abstract
Due to the rate of occurrence of neonatal hypoxia-ischemia, its neuronal sequelae, and the lack of effective therapies, the development of new neuroprotective strategies is required. Polyphenols (including resveratrol) are molecules whose anti-apoptotic, anti-inflammatory, and anti-oxidative properties could be effective against the damage induced by neonatal hypoxia-ischemia. In this review article, very recent data concerning the neuroprotective role of polyphenols and the mechanisms at play are detailed, including a boost in brain energy metabolism. The results obtained with innovative approaches, such as maternal supplementation at nutritional doses, suggest that polyphenols could be a promising prophylactic treatment for neonatal hypoxia-ischemia.
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Affiliation(s)
- Hélène Roumes
- Centre de Résonance Magnétique des Sysytèmes Biologiques (CRMSB), UMR 5536, University of Bordeaux and CNRS, F-33000 Bordeaux, France
- Correspondence:
| | - Pierre Goudeneche
- Centre de Résonance Magnétique des Sysytèmes Biologiques (CRMSB), UMR 5536, University of Bordeaux and CNRS, F-33000 Bordeaux, France
| | - Luc Pellerin
- Ischémie Reperfusion, Métabolisme et Inflammation Stérile en Transplantation (IRMETIST), Inserm U1313, University of Poitiers and CHU Poitiers, F-86021 Poitiers, France
| | - Anne-Karine Bouzier-Sore
- Centre de Résonance Magnétique des Sysytèmes Biologiques (CRMSB), UMR 5536, University of Bordeaux and CNRS, F-33000 Bordeaux, France
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14
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Metabolic and Cellular Compartments of Acetyl-CoA in the Healthy and Diseased Brain. Int J Mol Sci 2022; 23:ijms231710073. [PMID: 36077475 PMCID: PMC9456256 DOI: 10.3390/ijms231710073] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 08/29/2022] [Accepted: 08/31/2022] [Indexed: 11/25/2022] Open
Abstract
The human brain is characterised by the most diverse morphological, metabolic and functional structure among all body tissues. This is due to the existence of diverse neurons secreting various neurotransmitters and mutually modulating their own activity through thousands of pre- and postsynaptic interconnections in each neuron. Astroglial, microglial and oligodendroglial cells and neurons reciprocally regulate the metabolism of key energy substrates, thereby exerting several neuroprotective, neurotoxic and regulatory effects on neuronal viability and neurotransmitter functions. Maintenance of the pool of mitochondrial acetyl-CoA derived from glycolytic glucose metabolism is a key factor for neuronal survival. Thus, acetyl-CoA is regarded as a direct energy precursor through the TCA cycle and respiratory chain, thereby affecting brain cell viability. It is also used for hundreds of acetylation reactions, including N-acetyl aspartate synthesis in neuronal mitochondria, acetylcholine synthesis in cholinergic neurons, as well as divergent acetylations of several proteins, peptides, histones and low-molecular-weight species in all cellular compartments. Therefore, acetyl-CoA should be considered as the central point of metabolism maintaining equilibrium between anabolic and catabolic pathways in the brain. This review presents data supporting this thesis.
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15
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Stark RJ, Koch SR, Stothers CL, Pourquoi A, Lamb CK, Miller MR, Choi H. Loss of Sirtuin 1 (SIRT1) potentiates endothelial dysfunction via impaired glycolysis during infectious challenge. Clin Transl Med 2022; 12:e1054. [PMID: 36103428 PMCID: PMC9473483 DOI: 10.1002/ctm2.1054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 08/04/2022] [Accepted: 08/25/2022] [Indexed: 11/08/2022] Open
Affiliation(s)
- Ryan J. Stark
- Department of PediatricsVanderbilt University Medical CenterNashvilleTennessee
| | - Stephen R. Koch
- Department of PediatricsVanderbilt University Medical CenterNashvilleTennessee
| | - Cody L. Stothers
- Department of PediatricsVanderbilt University Medical CenterNashvilleTennessee
| | - Allison Pourquoi
- Department of PediatricsVanderbilt University Medical CenterNashvilleTennessee
| | - Celia K. Lamb
- Department of PediatricsVanderbilt University Medical CenterNashvilleTennessee
| | - Michael R. Miller
- Department of PediatricsVanderbilt University Medical CenterNashvilleTennessee
| | - Hyehun Choi
- Department of PediatricsVanderbilt University Medical CenterNashvilleTennessee
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16
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Polyphenols for the Treatment of Ischemic Stroke: New Applications and Insights. Molecules 2022; 27:molecules27134181. [PMID: 35807426 PMCID: PMC9268254 DOI: 10.3390/molecules27134181] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Revised: 06/23/2022] [Accepted: 06/28/2022] [Indexed: 11/16/2022] Open
Abstract
Ischemic stroke (IS) is a leading cause of death and disability worldwide. Currently, the main therapeutic strategy involves the use of intravenous thrombolysis to restore cerebral blood flow to prevent the transition of the penumbra to the infarct core. However, due to various limitations and complications, including the narrow time window in which this approach is effective, less than 10% of patients benefit from such therapy. Thus, there is an urgent need for alternative therapeutic strategies, with neuroprotection against the ischemic cascade response after IS being one of the most promising options. In the past few decades, polyphenolic compounds have shown great potential in animal models of IS because of their high biocompatibility and ability to target multiple ischemic cascade signaling pathways, although low bioavailability is an issue that limits the applications of several polyphenols. Here, we review the pathophysiological changes following cerebral ischemia and summarize the research progress regarding the applications of polyphenolic compounds in the treatment of IS over the past 5 years. Furthermore, we discuss several potential strategies for improving the bioavailability of polyphenolic compounds as well as some essential issues that remain to be addressed for the translation of the related therapies to the clinic.
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17
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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: 13] [Impact Index Per Article: 6.5] [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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Sarmah D, Datta A, Kaur H, Kalia K, Borah A, Rodriguez AM, Yavagal DR, Bhattacharya P. Sirtuin-1 - Mediated NF-κB Pathway Modulation to Mitigate Inflammasome Signaling and Cellular Apoptosis is One of the Neuroprotective Effects of Intra-arterial Mesenchymal Stem Cell Therapy Following Ischemic Stroke. Stem Cell Rev Rep 2022; 18:821-838. [PMID: 35112234 DOI: 10.1007/s12015-021-10315-7] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/02/2021] [Indexed: 12/14/2022]
Abstract
AIM Stroke results in long term serious disability that affect millions across the globe. Several clinical and preclinical studies have reinforced the therapeutic use of stem cells in stroke patients to enhance their quality of life. Previous studies from our lab have demonstrated that 1*105 allogeneic bone marrow-derived mesenchymal stem cells (BM-MSCs) when given intraarterially (IA) render neuroprotection by modulating the expression of inflammasomes. Sirtuins are a class of important deacylases having a significant role in cellular functioning. Sirtuin-1 (SIRT-1) is an important enzyme essential for regulating cellular metabolism, which is reduced following an ischemic episode. The present study aims to unviel the role of MSCs in regulating the brain SIRT-1 levels following stroke and the involvement of SIRT-1 in regulating inflammasome signaling to reduce cellular apoptosis towards rendering neuroprotection. MATERIALS AND METHODS 6 h post-reversible middle cerebral artery occlusion (MCAo), ovariectomized Sprague Dawley (SD) rats were infused intraarterially with 1*105 MSCs. 24 h after MCAo animals were examined for functional and behavioral outcomes. Brains were collected for assessing size of infarct and neuronal morphology. Molecular and immunofluroscence studies were also performed for assessing changes in gene and protein expressions. Extent of apoptosis was also determined in different groups. Inhibition study with SIRT-1 specific inhibitor EX-527 was also performed. RESULTS A reduction in infarct size and improvement in motor functional and behavioral outcomes following infusion of MSCs IA at 6 h post-stroke was observed. Increase in average neuronal density and neuronal length was also seen. Increased expression of SIRT-1, BDNF and concomitant reduction in the expression of different inflammatory and apoptotic markers in the brain cortical regions were observed following MSCs treatment. CONCLUSION Our study provides a preliminary evidence that post-stroke IA MSCs therapy regulates SIRT-1 to modulate NF-κB pathway to mitigate inflammasome signaling and cellular apoptosis. This study using IA approach for administering MSCs is highly relevant clinically. Our study is the first to report that neuroprotective effects of IA MSCs in rodent focal ischemia is mediated by SIRT-1 regulation of inflammasome signaling.
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Affiliation(s)
- Deepaneeta Sarmah
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, 382355, Gujarat, India
| | - Aishika Datta
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, 382355, Gujarat, India
| | - Harpreet Kaur
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, 382355, Gujarat, India
| | - Kiran Kalia
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, 382355, Gujarat, India
| | - Anupom Borah
- Cellular and Molecular Neurobiology Laboratory, Department of Life Science and Bioinformatics, Assam University, Silchar, Assam, India
| | | | - Dileep R Yavagal
- Department of Neurology and Neurosurgery, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Pallab Bhattacharya
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, 382355, Gujarat, India.
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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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20
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Li J, Zeng X, Yang X, Ding H. Lycopene ameliorates skin aging by regulating the insulin resistance pathway and activating SIRT1. Food Funct 2022; 13:11307-11320. [DOI: 10.1039/d2fo01111e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Lycopene could reverse insulin resistance through SIRT1 during skin aging and promotes microcirculation via the improvement of microvascular neovascularization to protect aging skin.
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Affiliation(s)
- Jing Li
- School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan, P. R. China
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, Wuhan University School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430000, Hubei, P. R. China
| | - Xin Zeng
- Nanchong Key Laboratory of Individualized Drug Therapy, Department of Pharmacy, The Second Clinical Medical College of North Sichuan Medical College, Nanchong Central Hospital, Nanchong, China
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, Wuhan University School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430000, Hubei, P. R. China
| | - Xiaolong Yang
- School of Pharmaceutical Sciences, South-Central Minzu University, Wuhan, P. R. China
| | - Hong Ding
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, Wuhan University School of Pharmaceutical Sciences, Wuhan University, Wuhan, 430000, Hubei, P. R. China
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21
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Zhang K, He K, Xu J, Nie L, Li S, Liu J, Long D, Dai Z, Yang X. Manganese exposure causes movement deficit and changes in the protein profile of the external globus pallidus in Sprague Dawley rats. Toxicol Ind Health 2021; 37:715-726. [PMID: 34706592 DOI: 10.1177/07482337211022223] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Manganese (Mn) is required for normal brain development and function. Excess Mn may trigger a parkinsonian movement disorder but the underlying mechanisms are incompletely understood. We explored changes in the brain proteomic profile and movement behavior of adult Sprague Dawley (SD) rats systemically treated with or without 1.0 mg/mL MnCl2 for 3 months. Mn treatment significantly increased the concentration of protein-bound Mn in the external globus pallidus (GP), as demonstrated by inductively coupled plasma mass spectrometry. Behavioral study showed that Mn treatment induced movement deficits, especially of skilled movement. Proteome analysis by two-dimensional fluorescence difference gel electrophoresis coupled with mass spectrometry revealed 13 differentially expressed proteins in the GP of Mn-treated versus Mn-untreated SD rats. The differentially expressed proteins were mostly involved in glycolysis, metabolic pathways, and response to hypoxia. Selected pathway class analysis of differentially expressed GP proteins, which included phosphoglycerate mutase 1 (PGAM1), primarily identified enrichment in glycolytic process and innate immune response. In conclusion, perturbation of brain energy production and innate immune response, in which PGAM1 has key roles, may contribute to the movement disorder associated with Mn neurotoxicity.
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Affiliation(s)
- Kaiqin Zhang
- School of Public Health, University of South China, Hunan Hengyang, China.,Key Laboratory of Modern Toxicology of Shenzhen, Shenzhen Medical Key Discipline of Health Toxicology, Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Kaiwu He
- Key Laboratory of Modern Toxicology of Shenzhen, Shenzhen Medical Key Discipline of Health Toxicology, Shenzhen Center for Disease Control and Prevention, Shenzhen, China.,School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, China
| | - Jia Xu
- Key Laboratory of Modern Toxicology of Shenzhen, Shenzhen Medical Key Discipline of Health Toxicology, Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Lulin Nie
- Key Laboratory of Modern Toxicology of Shenzhen, Shenzhen Medical Key Discipline of Health Toxicology, Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Shupeng Li
- School of Chemical Biology and Biotechnology, Peking University Shenzhen Graduate School, Shenzhen, China
| | - Jianjun Liu
- Key Laboratory of Modern Toxicology of Shenzhen, Shenzhen Medical Key Discipline of Health Toxicology, Shenzhen Center for Disease Control and Prevention, Shenzhen, China
| | - Dingxin Long
- School of Public Health, University of South China, Hunan Hengyang, China
| | - Zhongliang Dai
- The department of Anesthesiology, Shenzhen People's Hospital, The Second Clinical Medical College, Jinan University, Shenzhen, China
| | - Xifei Yang
- Key Laboratory of Modern Toxicology of Shenzhen, Shenzhen Medical Key Discipline of Health Toxicology, Shenzhen Center for Disease Control and Prevention, Shenzhen, China
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22
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Diwan D, Vellimana AK, Aum DJ, Clarke J, Nelson JW, Lawrence M, Han BH, Gidday JM, Zipfel GJ. Sirtuin 1 Mediates Protection Against Delayed Cerebral Ischemia in Subarachnoid Hemorrhage in Response to Hypoxic Postconditioning. J Am Heart Assoc 2021; 10:e021113. [PMID: 34622677 PMCID: PMC8751859 DOI: 10.1161/jaha.121.021113] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Background Many therapies designed to prevent delayed cerebral ischemia (DCI) and improve neurological outcome in aneurysmal subarachnoid hemorrhage (SAH) have failed, likely because of targeting only one element of what has proven to be a multifactorial disease. We previously demonstrated that initiating hypoxic conditioning before SAH (hypoxic preconditioning) provides powerful protection against DCI. Here, we expanded upon these findings to determine whether hypoxic conditioning delivered at clinically relevant time points after SAH (hypoxic postconditioning) provides similarly robust DCI protection. Methods and Results In this study, we found that hypoxic postconditioning (8% O2 for 2 hours) initiated 3 hours after SAH provides strong protection against cerebral vasospasm, microvessel thrombi, and neurological deficits. By pharmacologic and genetic inhibition of SIRT1 (sirtuin 1) using EX527 and global Sirt1-/- mice, respectively, we demonstrated that this multifaceted DCI protection is SIRT1 mediated. Moreover, genetic overexpression of SIRT1 using Sirt1-Tg mice, mimicked the DCI protection afforded by hypoxic postconditioning. Finally, we found that post-SAH administration of resveratrol attenuated cerebral vasospasm, microvessel thrombi, and neurological deficits, and did so in a SIRT1-dependent fashion. Conclusions The present study indicates that hypoxic postconditioning provides powerful DCI protection when initiated at clinically relevant time points, and that pharmacologic augmentation of SIRT1 activity after SAH can mimic this beneficial effect. We conclude that conditioning-based therapies administered after SAH hold translational promise for patients with SAH and warrant further investigation.
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Affiliation(s)
- Deepti Diwan
- Department of Neurological Surgery Washington University School of Medicine St. Louis MO
| | - Ananth K Vellimana
- Department of Neurological Surgery Washington University School of Medicine St. Louis MO
| | - Diane J Aum
- Department of Neurological Surgery Washington University School of Medicine St. Louis MO
| | - Julian Clarke
- Department of Neurological Surgery Washington University School of Medicine St. Louis MO
| | - James W Nelson
- Department of Neurological Surgery Washington University School of Medicine St. Louis MO
| | - Molly Lawrence
- Department of Neurological Surgery Washington University School of Medicine St. Louis MO
| | - Byung Hee Han
- Department of Pharmacology A.T. Still University of Health SciencesKirksville College of Osteopathic Medicine Kirksville MO
| | - Jeffrey M Gidday
- Departments of Ophthalmology, Physiology, Biochemistry, and Neuroscience Louisiana State University New Orleans LA
| | - Gregory J Zipfel
- Department of Neurological Surgery Washington University School of Medicine St. Louis MO.,Department of Neurology Washington University School of Medicine St. Louis MO
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23
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Emerging immune and cell death mechanisms in stroke: Saponins as therapeutic candidates. Brain Behav Immun Health 2021; 9:100152. [PMID: 34589895 PMCID: PMC8474497 DOI: 10.1016/j.bbih.2020.100152] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Accepted: 09/28/2020] [Indexed: 12/15/2022] Open
Abstract
The complexity of the ischemic cascade is based on the integrated crosstalk of every cell type in the neurovascular unit. Depending on the features of the ischemic insult, several cell death mechanisms are triggered, such as apoptosis, necroptosis, ferroptosis/oxytosis, ETosis or pyroptosis, leading to reactive astrogliosis. However, emerging evidence demonstrates a dual role for the immune system in stroke pathophysiology, where it exerts both detrimental and also beneficial functions. In this review, we discuss the relevance of several cell death modalities and the dual role of the immune system in stroke pathophysiology. We also provide an overview of some emerging immunomodulatory therapeutic strategies, amongst which saponins, which are promising candidates that exert multiple pharmacological effects. Several cell death mechanisms coexist in stroke pathophysiology. Neurons are more vulnerable to necroptosis than glial cells. Inhibitors of receptor-interacting protein kinases and of ferroptosis induce neuroprotection. Saponins exert modulatory effects on inflammation and neuronal cell death in stroke.
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24
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Peng X, Wang J, Peng J, Jiang H, Le K. Resveratrol Improves Synaptic Plasticity in Hypoxic-Ischemic Brain Injury in Neonatal Mice via Alleviating SIRT1/NF-κB Signaling-Mediated Neuroinflammation. J Mol Neurosci 2021; 72:113-125. [PMID: 34549339 DOI: 10.1007/s12031-021-01908-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Accepted: 08/31/2021] [Indexed: 10/20/2022]
Abstract
Neonatal hypoxic-ischemic encephalopathy (HIE) is an obstinate disease that troubles neonatologists. At present, cognitive impairment after HIE has received increasing attention. Synaptic plasticity determines the development of cognitive function, so it is urgent to develop new drugs that can improve HIE-induced cognitive impairment. Hypoxia-ischemia (HI)-induced neuroinflammation affects synaptic plasticity. As a SIRT1 agonist, resveratrol has a powerful anti-inflammatory effect, but whether it has an effect on impaired synaptic plasticity in HIE and the potential mechanism remain unclear. In the present study, resveratrol was used to intervene in hypoxic-ischemic brain injury (HIBI) mice, and the effects on hippocampal synaptic plasticity and further mechanisms were explored through performing neurobehavioral, morphological observations, Golgi sliver staining, western blotting, and quantitative real-time polymerase chain reaction experiments. We first found that resveratrol improves HI-induced long-term cognitive and memory deficits, and then we found that resveratrol reduces hippocampal neuronal damage and increases dendritic spine density and the expression of synaptic proteins. Finally, we found that this effect may be exerted by regulating the neuroinflammatory response mediated by the SIRT1/NF-κB axis. This study provides a new theoretical basis for resveratrol to prevent long-term neurological dysfunction following HIBI.
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Affiliation(s)
- Xin Peng
- Department of Otolaryngology Head and Neck Surgery, The First Affiliated Hospital of Nanchang University, No.17 Yongwaizheng Street, Nanchang, Jiangxi Province, 330006, China.,Department of Otolaryngology, Jiangxi Province Children's Hospital, No.122 Yangming Road, Nanchang, Jiangxi Province, 330006, China
| | - Jun Wang
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Nanchang University, No.17 Yongwaizheng Street, Nanchang, Jiangxi Province, 330006, China
| | - Juan Peng
- Department of Rehabilitation Medicine, PingXiang No.2 People's Hospital, No. 89 Pingan South Avenue, Danjiang Street, PingXiang, Jiangxi Province, 337000, China
| | - Hongqun Jiang
- Department of Otolaryngology Head and Neck Surgery, The First Affiliated Hospital of Nanchang University, No.17 Yongwaizheng Street, Nanchang, Jiangxi Province, 330006, China
| | - Kai Le
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Nanchang University, No.17 Yongwaizheng Street, Nanchang, Jiangxi Province, 330006, China.
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25
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Miguel CA, Noya-Riobó MV, Mazzone GL, Villar MJ, Coronel MF. Antioxidant, anti-inflammatory and neuroprotective actions of resveratrol after experimental nervous system insults. Special focus on the molecular mechanisms involved. Neurochem Int 2021; 150:105188. [PMID: 34536545 DOI: 10.1016/j.neuint.2021.105188] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 08/11/2021] [Accepted: 09/13/2021] [Indexed: 11/19/2022]
Abstract
After different types of acute central nervous system insults, including stroke, subarachnoid haemorrhage and traumatic brain and spinal cord injuries, secondary damage plays a central role in the induction of cell death, neurodegeneration and functional deficits. Interestingly, secondary cell death presents an attractive target for clinical intervention because the temporal lag between injury and cell loss provides a potential window for effective treatment. While primary injuries are the direct result of the precipitating insult, secondary damage involves the activation of pathological cascades through which endogenous factors can exacerbate initial tissue damage. Secondary processes, usually interactive and overlapping, include oxidative stress, neuroinflammation and dysregulation of autophagy, ultimately leading to cell death. Resveratrol, a natural stilbene present at relatively high concentrations in grape skin and red wine, exerts a wide range of beneficial health effects. Within the central nervous system, in addition to its inherent free radical scavenging role, resveratrol increases endogenous cellular antioxidant defences thus modulating multiple synergistic pathways responsible for its antioxidant, anti-inflammatory and anti-apoptotic properties. During the last years, a growing body of in vitro and in vivo evidence has been built, indicating that resveratrol can induce a neuroprotective state and attenuate functional deficits when administered acutely after an experimental injury to the central nervous system. In this review, we summarize the most recent findings on the molecular pathways involved in the neuroprotective effects of this multi target polyphenol, and discuss its neuroprotective potential after brain or spinal cord injuries.
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Affiliation(s)
- C A Miguel
- Laboratorio de Dolor en Cáncer, Instituto de Investigaciones en Medicina Traslacional CONICET - Universidad Austral, Av. Pte. Perón 1500, B1629AHJ, Pilar, Buenos Aires, Argentina
| | - M V Noya-Riobó
- Laboratorio de Dolor en Cáncer, Instituto de Investigaciones en Medicina Traslacional CONICET - Universidad Austral, Av. Pte. Perón 1500, B1629AHJ, Pilar, Buenos Aires, Argentina
| | - G L Mazzone
- Laboratorio de Dolor en Cáncer, Instituto de Investigaciones en Medicina Traslacional CONICET - Universidad Austral, Av. Pte. Perón 1500, B1629AHJ, Pilar, Buenos Aires, Argentina; Facultad de Ciencias Biomédicas, Universidad Austral, Av. Pte. Perón 1500, B1629AHJ, Pilar, Buenos Aires, Argentina
| | - M J Villar
- Laboratorio de Dolor en Cáncer, Instituto de Investigaciones en Medicina Traslacional CONICET - Universidad Austral, Av. Pte. Perón 1500, B1629AHJ, Pilar, Buenos Aires, Argentina; Facultad de Ciencias Biomédicas, Universidad Austral, Av. Pte. Perón 1500, B1629AHJ, Pilar, Buenos Aires, Argentina
| | - M F Coronel
- Laboratorio de Dolor en Cáncer, Instituto de Investigaciones en Medicina Traslacional CONICET - Universidad Austral, Av. Pte. Perón 1500, B1629AHJ, Pilar, Buenos Aires, Argentina; Facultad de Ciencias Biomédicas, Universidad Austral, Av. Pte. Perón 1500, B1629AHJ, Pilar, Buenos Aires, Argentina.
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26
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Li J, Zhang Y, Zeng X, Cheng Y, Tang L, Hong D, Yang X. Lycopene ameliorates insulin resistance and increases muscle capillary density in aging via activation of SIRT1. J Nutr Biochem 2021; 99:108862. [PMID: 34530111 DOI: 10.1016/j.jnutbio.2021.108862] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 02/14/2021] [Accepted: 07/25/2021] [Indexed: 11/27/2022]
Abstract
Lycopene (Ly) is a kind of hydrocarbon, which belongs to the family of tetraterpene carotene and exists in red fruits and vegetables. The decrease of capillary density and blood flow with age is a significant reason for the increase of mortality and morbidity. Herein, our study aims to explore the effects of Ly (a bioactive food compound) on vascular aging in vitro and in vivo and its potential mechanisms. The cytological results showed that Ly could promote the proliferation of human umbilical vein endothelial cell (HUVECs) and enhance the ability of HUVECs to form capillary-like structures. Furthermore, the expression of SIRT1 in aged HUVECs was up-regulated. In vivo, aging rats showed signs of insulin resistance and blood vessel damage. Additionally, the capillary density and blood flow were reduced during the vascular aging process in both D-gal-induced and naturally aging muscle. However, when Ly was given, these conditions could be reversed. Simultaneously, the contents of ATP, lactic acid and pyruvic acid were determined, and it was found that Ly could promote angiogenesis by increasing the utilization rate of glucose and promoting energy metabolism. Finally, in the insulin resistance cell model, we knocked down the SIRT1 and administrated with Ly, and found that it couldn't restore insulin transdution. In conclusion, all the data in this study demonstrate that Ly could reactivate SIRT1 and improve insulin resistance, which was a reversible cause of vascular aging.
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Affiliation(s)
- Jing Li
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, P. R. China; Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, Wuhan University School of Pharmaceutical Sciences, Wuhan University, Wuhan, Hubei, P. R. China
| | - Yingjiang Zhang
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, Wuhan University School of Pharmaceutical Sciences, Wuhan University, Wuhan, Hubei, P. R. China
| | - Xin Zeng
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, Wuhan University School of Pharmaceutical Sciences, Wuhan University, Wuhan, Hubei, P. R. China
| | - Yahong Cheng
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, Wuhan University School of Pharmaceutical Sciences, Wuhan University, Wuhan, Hubei, P. R. China
| | - Liu Tang
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, Wuhan University School of Pharmaceutical Sciences, Wuhan University, Wuhan, Hubei, P. R. China
| | - Ding Hong
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, Wuhan University School of Pharmaceutical Sciences, Wuhan University, Wuhan, Hubei, P. R. China.
| | - Xiaolong Yang
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, P. R. China.
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27
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Zhang S, Lachance BB, Mattson MP, Jia X. Glucose metabolic crosstalk and regulation in brain function and diseases. Prog Neurobiol 2021; 204:102089. [PMID: 34118354 DOI: 10.1016/j.pneurobio.2021.102089] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 04/08/2021] [Accepted: 06/01/2021] [Indexed: 01/11/2023]
Abstract
Brain glucose metabolism, including glycolysis, the pentose phosphate pathway, and glycogen turnover, produces ATP for energetic support and provides the precursors for the synthesis of biological macromolecules. Although glucose metabolism in neurons and astrocytes has been extensively studied, the glucose metabolism of microglia and oligodendrocytes, and their interactions with neurons and astrocytes, remain critical to understand brain function. Brain regions with heterogeneous cell composition and cell-type-specific profiles of glucose metabolism suggest that metabolic networks within the brain are complex. Signal transduction proteins including those in the Wnt, GSK-3β, PI3K-AKT, and AMPK pathways are involved in regulating these networks. Additionally, glycolytic enzymes and metabolites, such as hexokinase 2, acetyl-CoA, and enolase 2, are implicated in the modulation of cellular function, microglial activation, glycation, and acetylation of biomolecules. Given these extensive networks, glucose metabolism dysfunction in the whole brain or specific cell types is strongly associated with neurologic pathology including ischemic brain injury and neurodegenerative disorders. This review characterizes the glucose metabolism networks of the brain based on molecular signaling and cellular and regional interactions, and elucidates glucose metabolism-based mechanisms of neurological diseases and therapeutic approaches that may ameliorate metabolic abnormalities in those diseases.
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Affiliation(s)
- Shuai Zhang
- Department of Neurosurgery, University of Maryland School of Medicine, Baltimore, MD, 21201, United States
| | - Brittany Bolduc Lachance
- Program in Trauma, Department of Neurology, University of Maryland School of Medicine, Baltimore, MD, 21201, United States
| | - Mark P Mattson
- Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, United States
| | - Xiaofeng Jia
- Department of Neurosurgery, University of Maryland School of Medicine, Baltimore, MD, 21201, United States; Department of Orthopedics, University of Maryland School of Medicine, Baltimore, MD, 21201, United States; Department of Anatomy and Neurobiology, University of Maryland School of Medicine, Baltimore, MD, 21201, United States; Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, United States; Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, United States.
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28
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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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Mao XY, Yin XX, Guan QW, Xia QX, Yang N, Zhou HH, Liu ZQ, Jin WL. Dietary nutrition for neurological disease therapy: Current status and future directions. Pharmacol Ther 2021; 226:107861. [PMID: 33901506 DOI: 10.1016/j.pharmthera.2021.107861] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 04/02/2021] [Accepted: 04/06/2021] [Indexed: 02/06/2023]
Abstract
Adequate food intake and relative abundance of dietary nutrients have undisputed effects on the brain function. There is now substantial evidence that dietary nutrition aids in the prevention and remediation of neurologic symptoms in diverse pathological conditions. The newly described influences of dietary factors on the alterations of mitochondrial dysfunction, epigenetic modification and neuroinflammation are important mechanisms that are responsible for the action of nutrients on the brain health. In this review, we discuss the state of evidence supporting that distinct dietary interventions including dietary supplement and dietary restriction have the ability to tackle neurological disorders using Alzheimer's disease, Parkinson's disease, stroke, epilepsy, traumatic brain injury, amyotrophic lateral sclerosis, Huntington's disease and multiple sclerosis as examples. Additionally, it is also highlighting that diverse potential mechanisms such as metabolic control, epigenetic modification, neuroinflammation and gut-brain axis are of utmost importance for nutrient supply to the risk of neurologic condition and therapeutic response. Finally, we also highlight the novel concept that dietary nutrient intervention reshapes metabolism-epigenetics-immunity cycle to remediate brain dysfunction. Targeting metabolism-epigenetics-immunity network will delineate a new blueprint for combating neurological weaknesses.
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Affiliation(s)
- Xiao-Yuan Mao
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha 410008, PR China; Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, 110 Xiangya Road, Changsha 410078, PR China; Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, 110 Xiangya Road, Changsha 410078, PR China; National Clinical Research Center for Geriatric Disorders, 87 Xiangya Road, Changsha 410008, Hunan, PR China.
| | - Xi-Xi Yin
- Department of Pediatrics, Xiangya Hospital, Central South University, Changsha, China
| | - Qi-Wen Guan
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha 410008, PR China; Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, 110 Xiangya Road, Changsha 410078, PR China; Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, 110 Xiangya Road, Changsha 410078, PR China; National Clinical Research Center for Geriatric Disorders, 87 Xiangya Road, Changsha 410008, Hunan, PR China
| | - Qin-Xuan Xia
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha 410008, PR China; Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, 110 Xiangya Road, Changsha 410078, PR China; Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, 110 Xiangya Road, Changsha 410078, PR China; National Clinical Research Center for Geriatric Disorders, 87 Xiangya Road, Changsha 410008, Hunan, PR China
| | - Nan Yang
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha 410008, PR China; Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, 110 Xiangya Road, Changsha 410078, PR China; Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, 110 Xiangya Road, Changsha 410078, PR China; National Clinical Research Center for Geriatric Disorders, 87 Xiangya Road, Changsha 410008, Hunan, PR China
| | - Hong-Hao Zhou
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha 410008, PR China; Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, 110 Xiangya Road, Changsha 410078, PR China; Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, 110 Xiangya Road, Changsha 410078, PR China; National Clinical Research Center for Geriatric Disorders, 87 Xiangya Road, Changsha 410008, Hunan, PR China
| | - Zhao-Qian Liu
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha 410008, PR China; Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, 110 Xiangya Road, Changsha 410078, PR China; Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, 110 Xiangya Road, Changsha 410078, PR China; National Clinical Research Center for Geriatric Disorders, 87 Xiangya Road, Changsha 410008, Hunan, PR China.
| | - Wei-Lin Jin
- Institute of Cancer Neuroscience, Medical Frontier Innovation Research Center, The First Hospital of Lanzhou University, The First Clinical Medical College of Lanzhou University, Lanzhou 730000, PR China.
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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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31
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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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32
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Maissan P, Mooij EJ, Barberis M. Sirtuins-Mediated System-Level Regulation of Mammalian Tissues at the Interface between Metabolism and Cell Cycle: A Systematic Review. BIOLOGY 2021; 10:194. [PMID: 33806509 PMCID: PMC7999230 DOI: 10.3390/biology10030194] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 02/20/2021] [Accepted: 02/25/2021] [Indexed: 02/06/2023]
Abstract
Sirtuins are a family of highly conserved NAD+-dependent proteins and this dependency links Sirtuins directly to metabolism. Sirtuins' activity has been shown to extend the lifespan of several organisms and mainly through the post-translational modification of their many target proteins, with deacetylation being the most common modification. The seven mammalian Sirtuins, SIRT1 through SIRT7, have been implicated in regulating physiological responses to metabolism and stress by acting as nutrient sensors, linking environmental and nutrient signals to mammalian metabolic homeostasis. Furthermore, mammalian Sirtuins have been implicated in playing major roles in mammalian pathophysiological conditions such as inflammation, obesity and cancer. Mammalian Sirtuins are expressed heterogeneously among different organs and tissues, and the same holds true for their substrates. Thus, the function of mammalian Sirtuins together with their substrates is expected to vary among tissues. Any therapy depending on Sirtuins could therefore have different local as well as systemic effects. Here, an introduction to processes relevant for the actions of Sirtuins, such as metabolism and cell cycle, will be followed by reasoning on the system-level function of Sirtuins and their substrates in different mammalian tissues. Their involvement in the healthy metabolism and metabolic disorders will be reviewed and critically discussed.
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Affiliation(s)
- Parcival Maissan
- Synthetic Systems Biology and Nuclear Organization, Swammerdam Institute for Life Sciences, University of Amsterdam, 1098 XH Amsterdam, The Netherlands;
| | - Eva J. Mooij
- Systems Biology, School of Biosciences and Medicine, Faculty of Health and Medical Sciences, University of Surrey, Guildford GU2 7XH, Surrey, UK;
- Centre for Mathematical and Computational Biology, CMCB, University of Surrey, Guildford GU2 7XH, Surrey, UK
| | - Matteo Barberis
- Synthetic Systems Biology and Nuclear Organization, Swammerdam Institute for Life Sciences, University of Amsterdam, 1098 XH Amsterdam, The Netherlands;
- Systems Biology, School of Biosciences and Medicine, Faculty of Health and Medical Sciences, University of Surrey, Guildford GU2 7XH, Surrey, UK;
- Centre for Mathematical and Computational Biology, CMCB, University of Surrey, Guildford GU2 7XH, Surrey, UK
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33
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Boltze J, Aronowski JA, Badaut J, Buckwalter MS, Caleo M, Chopp M, Dave KR, Didwischus N, Dijkhuizen RM, Doeppner TR, Dreier JP, Fouad K, Gelderblom M, Gertz K, Golubczyk D, Gregson BA, Hamel E, Hanley DF, Härtig W, Hummel FC, Ikhsan M, Janowski M, Jolkkonen J, Karuppagounder SS, Keep RF, Koerte IK, Kokaia Z, Li P, Liu F, Lizasoain I, Ludewig P, Metz GAS, Montagne A, Obenaus A, Palumbo A, Pearl M, Perez-Pinzon M, Planas AM, Plesnila N, Raval AP, Rueger MA, Sansing LH, Sohrabji F, Stagg CJ, Stetler RA, Stowe AM, Sun D, Taguchi A, Tanter M, Vay SU, Vemuganti R, Vivien D, Walczak P, Wang J, Xiong Y, Zille M. New Mechanistic Insights, Novel Treatment Paradigms, and Clinical Progress in Cerebrovascular Diseases. Front Aging Neurosci 2021; 13:623751. [PMID: 33584250 PMCID: PMC7876251 DOI: 10.3389/fnagi.2021.623751] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 01/04/2021] [Indexed: 12/13/2022] Open
Abstract
The past decade has brought tremendous progress in diagnostic and therapeutic options for cerebrovascular diseases as exemplified by the advent of thrombectomy in ischemic stroke, benefitting a steeply increasing number of stroke patients and potentially paving the way for a renaissance of neuroprotectants. Progress in basic science has been equally impressive. Based on a deeper understanding of pathomechanisms underlying cerebrovascular diseases, new therapeutic targets have been identified and novel treatment strategies such as pre- and post-conditioning methods were developed. Moreover, translationally relevant aspects are increasingly recognized in basic science studies, which is believed to increase their predictive value and the relevance of obtained findings for clinical application.This review reports key results from some of the most remarkable and encouraging achievements in neurovascular research that have been reported at the 10th International Symposium on Neuroprotection and Neurorepair. Basic science topics discussed herein focus on aspects such as neuroinflammation, extracellular vesicles, and the role of sex and age on stroke recovery. Translational reports highlighted endovascular techniques and targeted delivery methods, neurorehabilitation, advanced functional testing approaches for experimental studies, pre-and post-conditioning approaches as well as novel imaging and treatment strategies. Beyond ischemic stroke, particular emphasis was given on activities in the fields of traumatic brain injury and cerebral hemorrhage in which promising preclinical and clinical results have been reported. Although the number of neutral outcomes in clinical trials is still remarkably high when targeting cerebrovascular diseases, we begin to evidence stepwise but continuous progress towards novel treatment options. Advances in preclinical and translational research as reported herein are believed to have formed a solid foundation for this progress.
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Affiliation(s)
- Johannes Boltze
- School of Life Sciences, University of Warwick, Warwick, United Kingdom
| | - Jaroslaw A. Aronowski
- Institute for Stroke and Cerebrovascular Diseases, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Jerome Badaut
- NRS UMR 5287, INCIA, Brain Molecular Imaging Team, University of Bordeaux, Bordeaux cedex, France
| | - Marion S. Buckwalter
- Departments of Neurology and Neurological Sciences, and Neurosurgery, Wu Tsai Neurosciences Institute, Stanford School of Medicine, Stanford, CA, United States
| | - Mateo Caleo
- Neuroscience Institute, National Research Council, Pisa, Italy
- Department of Biomedical Sciences, University of Padua, Padua, Italy
| | - Michael Chopp
- Department of Neurology, Henry Ford Hospital, Detroit, MI, United States
- Department of Physics, Oakland University, Rochester, MI, United States
| | - Kunjan R. Dave
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratory, Department of Neurology, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Nadine Didwischus
- School of Life Sciences, University of Warwick, Warwick, United Kingdom
| | - Rick M. Dijkhuizen
- Biomedical MR Imaging and Spectroscopy Group, Center for Image Sciences, University Medical Center Utrecht and Utrecht University, Utrecht, Netherlands
| | - Thorsten R. Doeppner
- Department of Neurology, University Medical Center Göttingen, Göttingen, Germany
| | - Jens P. Dreier
- Department of Neurology, Center for Stroke Research Berlin, Charité—Universitätsmedizin Berlin, Berlin, Germany
- Department of Experimental Neurology, Charité—Universitätsmedizin Berlin, Berlin, Germany
- Bernstein Center for Computational Neuroscience Berlin, Berlin, Germany
- Einstein Center for Neurosciences Berlin, Berlin, Germany
| | - Karim Fouad
- Faculty of Rehabilitation Medicine and Institute for Neuroscience and Mental Health, University of Alberta, Edmonton, AB, Canada
| | - Mathias Gelderblom
- Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Karen Gertz
- Department of Neurology, Center for Stroke Research Berlin, Charité—Universitätsmedizin Berlin, Berlin, Germany
- Berlin Institute of Health, Berlin, Germany
| | - Dominika Golubczyk
- Department of Neurosurgery, School of Medicine, University of Warmia and Mazury, Olsztyn, Poland
| | - Barbara A. Gregson
- Neurosurgical Trials Group, Institute of Neuroscience, The University of Newcastle upon Tyne, Newcastle upon Tyne, United Kingdom
| | - Edith Hamel
- Laboratory of Cerebrovascular Research, Montreal Neurological Institute, McGill University, Montreal, QC, Canada
| | - Daniel F. Hanley
- Division of Brain Injury Outcomes, Johns Hopkins University, Baltimore, MD, United States
| | - Wolfgang Härtig
- Paul Flechsig Institute of Brain Research, University of Leipzig, Leipzig, Germany
| | - Friedhelm C. Hummel
- Clinical Neuroengineering, Center for Neuroprosthetics and Brain Mind Institute, Swiss Federal Institute of Technology Valais, Clinique Romande de Réadaptation, Sion, Switzerland
- Clinical Neuroscience, University of Geneva Medical School, Geneva, Switzerland
| | - Maulana Ikhsan
- Institute for Experimental and Clinical Pharmacology and Toxicology, University of Lübeck, Lübeck, Germany
- Fraunhofer Research Institution for Marine Biotechnology and Cell Technology, Lübeck, Germany
- Institute for Medical and Marine Biotechnology, University of Lübeck, Lübeck, Germany
| | - Miroslaw Janowski
- Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland, Baltimore, MD, United States
| | - Jukka Jolkkonen
- Department of Neurology, A.I. Virtanen Institute for Molecular Sciences, University of Eastern Finland, Kuopio, Finland
| | - Saravanan S. Karuppagounder
- Burke Neurological Institute, White Plains, NY, United States
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, United States
| | - Richard F. Keep
- Department of Neurosurgery, University of Michigan, Ann Arbor, MI, United States
| | - Inga K. Koerte
- Psychiatric Neuroimaging Laboratory, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, United States
- Department of Child and Adolescent Psychiatry, Psychosomatic, and Psychotherapy, Ludwig Maximilians University, Munich, Germany
| | - Zaal Kokaia
- Lund Stem Cell Center, Lund University, Lund, Sweden
| | - Peiying Li
- Department of Anesthesiology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - Fudong Liu
- Department of Neurology, The University of Texas Health Science Center at Houston, McGovern Medical School, Houston, TX, United States
| | - Ignacio Lizasoain
- Unidad de Investigación Neurovascular, Departamento Farmacología y Toxicología, Facultad de Medicina, Instituto Universitario de Investigación en Neuroquímica, Universidad Complutense de Madrid, Madrid, Spain
| | - Peter Ludewig
- Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Gerlinde A. S. Metz
- Department of Neuroscience, Canadian Centre for Behavioural Neuroscience, University of Lethbridge, Lethbridge, AB, Canada
| | - Axel Montagne
- Zilkha Neurogenetic Institute, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Andre Obenaus
- Department of Pediatrics, University of California, Irvine, Irvine, CA, United States
| | - Alex Palumbo
- Institute for Experimental and Clinical Pharmacology and Toxicology, University of Lübeck, Lübeck, Germany
- Fraunhofer Research Institution for Marine Biotechnology and Cell Technology, Lübeck, Germany
- Institute for Medical and Marine Biotechnology, University of Lübeck, Lübeck, Germany
| | - Monica Pearl
- The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Miguel Perez-Pinzon
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratory, Department of Neurology, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Anna M. Planas
- Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Àrea de Neurociències, Barcelona, Spain
- Department d’Isquèmia Cerebral I Neurodegeneració, Institut d’Investigacions Biomèdiques de Barcelona (IIBB), Consejo Superior de Investigaciones Científicas (CSIC), Barcelona, Spain
| | - Nikolaus Plesnila
- Institute for Stroke and Dementia Research (ISD), Munich University Hospital, Munich, Germany
- Graduate School of Systemic Neurosciences (GSN), Munich University Hospital, Munich, Germany
- Munich Cluster of Systems Neurology (Synergy), Munich, Germany
| | - Ami P. Raval
- Peritz Scheinberg Cerebral Vascular Disease Research Laboratory, Department of Neurology, University of Miami Miller School of Medicine, Miami, FL, United States
| | - Maria A. Rueger
- Faculty of Medicine and University Hospital, Department of Neurology, University of Cologne, Cologne, Germany
| | - Lauren H. Sansing
- Department of Neurology, Yale University School of Medicine, New Haven, CT, United States
| | - Farida Sohrabji
- Women’s Health in Neuroscience Program, Neuroscience and Experimental Therapeutics, Texas A&M College of Medicine, Bryan, TX, United States
| | - Charlotte J. Stagg
- Nuffield Department of Clinical Neurosciences, Wellcome Centre for Integrative Neuroimaging, University of Oxford, Oxford, United Kingdom
- MRC Brain Network Dynamics Unit, University of Oxford, Oxford, United Kingdom
| | - R. Anne Stetler
- Department of Neurology, Pittsburgh Institute of Brain Disorders and Recovery, University of Pittsburgh, Pittsburgh, PA, United States
| | - Ann M. Stowe
- Department of Neurology and Neurotherapeutics, Peter O’Donnell Jr. Brain Institute, UT Southwestern Medical Center, Dallas, TX, United States
| | - Dandan Sun
- Pittsburgh Institute for Neurodegenerative Disorders, University of Pittsburgh, PA, United States
| | - Akihiko Taguchi
- Department of Regenerative Medicine Research, Institute of Biomedical Research and Innovation, Kobe, Japan
| | - Mickael Tanter
- Institute of Physics for Medicine Paris, INSERM U1273, ESPCI Paris, CNRS FRE 2031, PSL University, Paris, France
| | - Sabine U. Vay
- Faculty of Medicine and University Hospital, Department of Neurology, University of Cologne, Cologne, Germany
| | - Raghu Vemuganti
- Department of Neurological Surgery, University of Wisconsin, Madison, WI, United States
| | - Denis Vivien
- UNICAEN, INSERM, INSERM UMR-S U1237, Physiopathology and Imaging for Neurological Disorders (PhIND), Normandy University, Caen, France
- CHU Caen, Clinical Research Department, CHU de Caen Côte de Nacre, Caen, France
| | - Piotr Walczak
- Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland, Baltimore, MD, United States
| | - Jian Wang
- Department of Human Anatomy, College of Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Ye Xiong
- Department of Neurosurgery, Henry Ford Hospital, Detroit, MI, United States
| | - Marietta Zille
- Institute for Experimental and Clinical Pharmacology and Toxicology, University of Lübeck, Lübeck, Germany
- Fraunhofer Research Institution for Marine Biotechnology and Cell Technology, Lübeck, Germany
- Institute for Medical and Marine Biotechnology, University of Lübeck, Lübeck, Germany
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Intracisternal administration of tanshinone IIA-loaded nanoparticles leads to reduced tissue injury and functional deficits in a porcine model of ischemic stroke. IBRO Neurosci Rep 2021; 10:18-30. [PMID: 33842909 PMCID: PMC8019951 DOI: 10.1016/j.ibneur.2020.11.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 11/27/2020] [Indexed: 11/23/2022] Open
Abstract
Background The absolute number of new stroke patients is annually increasing and there still remains only a few Food and Drug Administration (FDA) approved treatments with significant limitations available to patients. Tanshinone IIA (Tan IIA) is a promising potential therapeutic for ischemic stroke that has shown success in pre-clinical rodent studies but lead to inconsistent efficacy results in human patients. The physical properties of Tan-IIA, including short half-life and low solubility, suggests that Poly (lactic-co-glycolic acid) (PLGA) nanoparticle-assisted delivery may lead to improve bioavailability and therapeutic efficacy. The objective of this study was to develop Tan IIA-loaded nanoparticles (Tan IIA-NPs) and to evaluate their therapeutic effects on cerebral pathological changes and consequent motor function deficits in a pig ischemic stroke model. Results Tan IIA-NP treated neural stem cells showed a reduction in SOD activity in in vitro assays demonstrating antioxidative effects. Ischemic stroke pigs treated with Tan IIA-NPs showed reduced hemispheric swelling when compared to vehicle only treated pigs (7.85 ± 1.41 vs. 16.83 ± 0.62%), consequent midline shift (MLS) (1.72 ± 0.07 vs. 2.91 ± 0.36 mm), and ischemic lesion volumes (9.54 ± 5.06 vs. 12.01 ± 0.17 cm3) when compared to vehicle-only treated pigs. Treatment also lead to lower reductions in diffusivity (-37.30 ± 3.67 vs. -46.33 ± 0.73%) and white matter integrity (-19.66 ± 5.58 vs. -30.11 ± 1.19%) as well as reduced hemorrhage (0.85 ± 0.15 vs 2.91 ± 0.84 cm3) 24 h post-ischemic stroke. In addition, Tan IIA-NPs led to a reduced percentage of circulating band neutrophils at 12 (7.75 ± 1.93 vs. 14.00 ± 1.73%) and 24 (4.25 ± 0.48 vs 5.75 ± 0.85%) hours post-stroke suggesting a mitigated inflammatory response. Moreover, spatiotemporal gait deficits including cadence, cycle time, step time, swing percent of cycle, stride length, and changes in relative mean pressure were less severe post-stroke in Tan IIA-NP treated pigs relative to control pigs. Conclusion The findings of this proof of concept study strongly suggest that administration of Tan IIA-NPs in the acute phase post-stroke mitigates neural injury likely through limiting free radical formation, thus leading to less severe gait deficits in a translational pig ischemic stroke model. With stroke as one of the leading causes of functional disability in the United States, and gait deficits being a major component, these promising results suggest that acute Tan IIA-NP administration may improve functional outcomes and the quality of life of many future stroke patients.
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Key Words
- ADC, Apparent Diffusion Coefficient
- ANOVA, analysis of variance
- AU, arbitrary units
- BBB, blood brain barrier
- Baic, Baicalin
- CNS, central nervous system
- CSF, cerebral spinal fluid
- DAMPS, damaged-associated molecular patterns
- DLS, dynamic light scattering
- DTI, Diffusion Tensor Imaging
- DWI, Diffusion-Weighted Imaging
- Edar, Edaravone
- FA, fractional anisotropy
- FDA, Food and Drug Administration
- GABA, γ-aminobutyric acid
- GM, gray matter
- IC, inhibitory concentration
- ICH, intracerebral hemorrhage
- IL-6, interleukin 6
- IM, intramuscular
- Ischemic stroke
- LPS, lipopolysaccharide
- MCA, middle cerebral artery
- MCAO, middle cerebral artery occlusion
- MLS, midline shift
- NP, nanoparticle
- NSCs, neural stem cells
- Nanomedicine
- PBS, phosphate buffered saline
- PEG–PLGA, polyethyleneglycol–polylactic-co-glycolic acid
- PLGA nanoparticle
- PLGA, Poly (lactic-co-glycolic acid)
- PLGA-b-PEG-OH, poly (lactide-co-glycolide)-b-poly (ethylene glycol)-maleimide
- Pig stroke model
- Piog, Pioglitazone
- Puer, Puerarin
- ROS, reactive oxygen species
- Resv, Resveratrol
- SOD, superoxide dismutase
- STAIR, Stroke Therapy Academic and Industry Roundtable
- T2*, T2Star
- T2FLAIR, T2 Fluid Attenuated Inversion Recovery
- T2W, T2Weighted
- TD, transdermal
- TEM, transmission electron microscopy
- TNF-α, tumor necrosis factor α
- Tan IIA, Tanshinone IIA
- Tan IIA-NPs, Tan IIA PLGA NPs
- Tan IIA-NPs, Tan IIA-loaded nanoparticles
- Tanshinone IIA
- UGA, University of Georgia
- WM, white matter
- ddH2O, double-distilled water
- tPA, Tissue plasminogen activator
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Jia Q, Dong W, Zhang L, Yang X. Activating Sirt1 by resveratrol suppresses Nav1.7 expression in DRG through miR-182 and alleviates neuropathic pain in rats. Channels (Austin) 2020; 14:69-78. [PMID: 32089065 PMCID: PMC7039643 DOI: 10.1080/19336950.2020.1732003] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2019] [Revised: 01/12/2020] [Accepted: 01/17/2020] [Indexed: 02/06/2023] Open
Abstract
Neuropathic pain is clinically unsatisfactorily treated because of unclear mechanisms. The present study aims to explore the concrete mechanisms underlying the alleviation of resveratrol-activated silent information regulator 1 (Sirt1) to chronic constriction injury (CCI)-induced neuropathic pain. CCI surgery was conducted to the unilateral sciatic nerve of male Sprague-Dawley rats to induce neuropathic pain experimentally. Resveratrol with or without miR-182 antagomir were administered to CCI rats via intrathecal catheter. Behavioral tests including paw withdrawal threshold (PWT) and paw withdrawal latency (PWL) were conducted to explore mechanical allodynia and thermal hyperalgesia. Western blot, qRT-PCR were used to detect the expression levels of Sirt1, miR-182, and Nav1.7 in CCI dorsal root ganglions (DRGs). CCI rats displayed lower PWT and PWL compared with the sham control. Also, the CCI DRGs displayed lower Sirt1 and miR-182 expression as well as higher Nav1.7 expression, which would be almost reversed by resveratrol treatment for 4 successive days. We also found that miR-182 expression inhibition erased the analgesia effect of resveratrol to CCI-induced neuropathic pain possibly through upregulating Nav1.7 expression. In summary, resveratrol alleviated CCI-induced neuropathic pain, possibly through activating Sirt1 to suppress Nav1.7 expression via upregulating miR-182 expression in CCI DRGs.
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Affiliation(s)
- Qianqian Jia
- Department of Anesthesiology, First Hospital of Qinhuangdao, Qinhuangdao, Hebei, China
| | - Wenze Dong
- Department of Anesthesiology, First Hospital of Qinhuangdao, Qinhuangdao, Hebei, China
| | - Liwei Zhang
- Department of Anesthesiology, First Hospital of Qinhuangdao, Qinhuangdao, Hebei, China
| | - Xiaochun Yang
- Department of Anesthesiology, First Hospital of Qinhuangdao, Qinhuangdao, Hebei, China
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Zhang J, Ren J, Liu Y, Huang D, Lu L. Resveratrol regulates the recovery of rat sciatic nerve crush injury by promoting the autophagy of Schwann cells. Life Sci 2020; 256:117959. [PMID: 32531375 DOI: 10.1016/j.lfs.2020.117959] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2019] [Revised: 05/30/2020] [Accepted: 06/08/2020] [Indexed: 12/12/2022]
Abstract
Resveratrol has the ability to promote functional recovery after sciatic nerve crush injury (SNCI), though the mechanism through which this occurs in not fully understood. Resveratrol can promote autophagy, a key process in Wallerian degeneration; thus, we hypothesized that resveratrol could promote recovery from SNCI by promoting Schwann cell autophagy and acceleration of Wallerian degeneration. Motor function recovery was assessed by calculating Sciatic Function Indexes (SFIs) at days 7, 14, 21, 28 post SNCI. Autophagy and myelin clearance were assessed by microtubule-associated protein light chain 3B (LC3B) and myelin protein zero (MPZ) immunofluorescence and Western blot analysis on the fourth day after SNCI. The autophagy of Schwann cells following resveratrol administration was quantified by immunofluorescence in RSC96 cells. Immunofluorescence and Transmission electron microscopy (TEM) were also used in Resveratrol treated sciatic nerve four days post-SNCI to find LC3B positive areas and typical double membrane structures represent for autophagy. The SNCI+resveratrol (crush+Res) groups recovered faster than the SNCI+vehicles (crush+V) group. On day four, almost all of the myelin had regenerated in the crush+Res rats, while the crush+V group's myelin remained intact and the expression levels of LC3-II/I was the highest. On day 28 post-injury, both the control and crush+Res groups' myelin neurofibers reached peak numbers as did the thickness of the myelin sheath. Both in vitro and in vivo immunofluorescence showed that LC3B was colocalized with Schwann cells. This is the first study to observe that resveratrol can promote recovery from SCNI by accelerating the myelin clearance process by promoting autophagy of Schwann cells.
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Affiliation(s)
- Jiayi Zhang
- Department of Hand and Foot Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - Jingyan Ren
- Department of Hand and Foot Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - Yang Liu
- Department of Hand and Foot Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - Dongxu Huang
- Department of Hand and Foot Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - Laijin Lu
- Department of Hand and Foot Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, China.
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Dumont U, Sanchez S, Olivier B, Chateil JF, Deffieux D, Quideau S, Pellerin L, Beauvieux MC, Bouzier-Sore AK, Roumes H. Maternal alcoholism and neonatal hypoxia-ischemia: Neuroprotection by stilbenoid polyphenols. Brain Res 2020; 1738:146798. [PMID: 32229200 DOI: 10.1016/j.brainres.2020.146798] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 02/21/2020] [Accepted: 03/14/2020] [Indexed: 01/16/2023]
Abstract
The impact of maternal nutrition on neurodevelopment and neonatal neuroprotection is a research topic with increasing interest. Maternal diet can also have deleterious effects on fetal brain development. Fetal exposure to alcohol is responsible for poor neonatal global development, and may increase brain vulnerability to hypoxic-ischemic encephalopathy, one of the major causes of acute mortality and chronic neurological disability in newborns. Despite frequent prevention campaigns, about 10% of women in the general population drinks alcohol during pregnancy and breastfeeding. This study was inspired by this alarming fact. Its aim was to evaluate the beneficial effects of maternal supplementation with two polyphenols during pregnancy and breastfeeding, on hypoxic-ischemic neonate rat brain damages, sensorimotor and cognitive impairments, in a context of moderate maternal alcoholism. Both stilbenoid polyphenols, trans-resveratrol (RSV - 0.15 mg/kg/day), and its hydroxylated analog, trans-piceatannol (PIC - 0.15 mg/kg/day), were administered in the drinking water, containing or not alcohol (0.5 g/kg/day). In a 7-day post-natal rat model of hypoxia-ischemia (HI), our data showed that moderate maternal alcoholism does not increase brain lesion volumes measured by MRI but leads to higher motor impairments. RSV supplementation could not reverse the deleterious effects of HI coupled with maternal alcoholism. However, PIC supplementation led to a recovery of all sensorimotor and cognitive functions. This neuroprotection was obtained with a dose of PIC corresponding to the consumption of a single passion fruit per day for a pregnant woman.
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Affiliation(s)
- Ursule Dumont
- CRMSB, UMR 5536, CNRS/University of Bordeaux, 146 Rue Léo Saignat, 33076 Bordeaux Cedex, France.
| | - Stéphane Sanchez
- CRMSB, UMR 5536, CNRS/University of Bordeaux, 146 Rue Léo Saignat, 33076 Bordeaux Cedex, France.
| | - Benjamin Olivier
- CRMSB, UMR 5536, CNRS/University of Bordeaux, 146 Rue Léo Saignat, 33076 Bordeaux Cedex, France.
| | - Jean-François Chateil
- CRMSB, UMR 5536, CNRS/University of Bordeaux, 146 Rue Léo Saignat, 33076 Bordeaux Cedex, France.
| | | | | | - Luc Pellerin
- CRMSB, UMR 5536, CNRS/University of Bordeaux, 146 Rue Léo Saignat, 33076 Bordeaux Cedex, France; Department of Physiology, 7 Rue du Bugnon, CH1005 Lausanne, Switzerland.
| | | | - Anne-Karine Bouzier-Sore
- CRMSB, UMR 5536, CNRS/University of Bordeaux, 146 Rue Léo Saignat, 33076 Bordeaux Cedex, France.
| | - Hélène Roumes
- CRMSB, UMR 5536, CNRS/University of Bordeaux, 146 Rue Léo Saignat, 33076 Bordeaux Cedex, France.
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Teertam SK, Jha S, Prakash Babu P. Up-regulation of Sirt1/miR-149-5p signaling may play a role in resveratrol induced protection against ischemia via p53 in rat brain. J Clin Neurosci 2020; 72:402-411. [PMID: 31866350 DOI: 10.1016/j.jocn.2019.11.043] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 11/30/2019] [Indexed: 12/19/2022]
Abstract
Micro-RNA(miRNA) are well studied small noncoding RNA, which plays a diverse role in the regulation of vital elements in cell survival and apoptosis. However, the functional significance of miRNAs after the pathogenesis of ischemic stroke remains unclear. The present study is designed to investigate the regulatory role of miR-149-5p on Sirtuin-1/p53 axis during ischemic-reperfusion-induced injury. Middle cerebral artery occlusion (MCAO) was performed by nylon monofilament for 60 min. Resveratrol was administered via intraperitoneal (IP) route, 30 min before the MCAO. Our study demonstrated that the miR-149-5p levels were markedly decreased at 24 h after ischemic-reperfusion (I/R) injury. Further, we observed decreased p53 protein expression and increased miR-149-5p activity on sirtuin1 (Sirt1) activation with resveratrol after 24 h following MCAO. Moreover, immunohistochemistry studies found that resveratrol treatment significantly decreased the immunoreactivity of p53 and caspase-3 on activation of Sirt1/miR149-5p axis. In conclusion, our findings suggest that miR-149-5p could play a regulatory role in neuronal cell death via Sirt1/p53 axis, which offers a new target for novel therapeutic interventions during acute ischemic stroke.
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Affiliation(s)
- Sireesh Kumar Teertam
- Department of Biotechnology & Bioinformatics, School of Life Sciences, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad, 500 046 TS, India
| | - Shekhar Jha
- Department of Biotechnology & Bioinformatics, School of Life Sciences, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad, 500 046 TS, India
| | - Phanithi Prakash Babu
- Department of Biotechnology & Bioinformatics, School of Life Sciences, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad, 500 046 TS, India.
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39
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Laws MT, Bonomi RE, Gelovani DJ, Llaniguez J, Lu X, Mangner T, Gelovani JG. Noninvasive quantification of SIRT1 expression-activity and pharmacologic inhibition in a rat model of intracerebral glioma using 2-[ 18F]BzAHA PET/CT/MRI. Neurooncol Adv 2020; 2:vdaa006. [PMID: 32118205 PMCID: PMC7034639 DOI: 10.1093/noajnl/vdaa006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Background Several studies demonstrated that glioblastoma multiforme progression and recurrence is linked to epigenetic regulatory mechanisms. Sirtuin 1 (SIRT1) plays an important role in glioma progression, invasion, and treatment response and is a potential therapeutic target. The aim of this study is to test the feasibility of 2-[18F]BzAHA for quantitative imaging of SIRT1 expression–activity and monitoring pharmacologic inhibition in a rat model of intracerebral glioma. Methods Sprague Dawley rats bearing 9L (N = 12) intracerebral gliomas were injected with 2-[18F]BzAHA (300–500 µCi/animal i.v.) and dynamic positron-emission tomography (PET) imaging was performed for 60 min. Then, SIRT1 expression in 9L tumors (N = 6) was studied by immunofluorescence microscopy (IF). Two days later, rats with 9L gliomas were treated either with SIRT1 specific inhibitor EX-527 (5 mg/kg, i.p.; N = 3) or with histone deacetylases class IIa specific inhibitor MC1568 (30 mg/kg, i.p.; N = 3) and 30 min later were injected i.v. with 2-[18F]BzAHA. PET-computerized tomography-magnetic resonance (PET/CT/MR) images acquired after EX-527 and MC1568 treatments were co-registered with baseline images. Results Standard uptake values (SUVs) of 2-[18F]BzAHA in 9L tumors measured at 20 min post-radiotracer administration were 1.11 ± 0.058 and had a tumor-to-brainstem SUV ratio of 2.73 ± 0.141. IF of 9L gliomas revealed heterogeneous upregulation of SIRT1, especially in hypoxic and peri-necrotic regions. Significant reduction in 2-[18F]BzAHA SUV and distribution volume in 9L tumors was observed after administration of EX-527, but not MC1568. Conclusions PET/CT/MRI with 2-[18F]BzAHA can facilitate studies to elucidate the roles of SIRT1 in gliomagenesis and progression, as well as to optimize therapeutic doses of novel SIRT1 inhibitors.
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Affiliation(s)
- Maxwell T Laws
- Department of Biomedical Engineering, College of Engineering and School of Medicine, Wayne State University, Detroit, Michigan, USA
| | - Robin E Bonomi
- Department of Biomedical Engineering, College of Engineering and School of Medicine, Wayne State University, Detroit, Michigan, USA
| | - David J Gelovani
- Department of Biomedical Engineering, College of Engineering and School of Medicine, Wayne State University, Detroit, Michigan, USA
| | - Jeremy Llaniguez
- Department of Biomedical Engineering, College of Engineering and School of Medicine, Wayne State University, Detroit, Michigan, USA
| | - Xin Lu
- Positron Emission Tomography Center, Wayne State University, Detroit, Michigan, USA
| | - Thomas Mangner
- Positron Emission Tomography Center, Wayne State University, Detroit, Michigan, USA
| | - Juri G Gelovani
- Department of Biomedical Engineering, College of Engineering and School of Medicine, Wayne State University, Detroit, Michigan, USA.,Department of Oncology, Wayne State University School of Medicine, Detroit, Michigan, USA.,Department of Neurosurgery, Wayne State University School of Medicine, Detroit, Michigan, USA.,Molecular Imaging Program, Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, Michigan, USA
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40
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Zhang ZH, Zhang H, Wang YR, Liu XL, Huang H, Xu XH. SIRT 1 binding with PKM and NSE and modulate their acetylation and activities. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2019; 1867:794-801. [DOI: 10.1016/j.bbapap.2019.06.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 05/27/2019] [Accepted: 06/07/2019] [Indexed: 12/13/2022]
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41
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Xu J, Khoury N, Jackson CW, Escobar I, Stegelmann SD, Dave KR, Perez-Pinzon MA. Ischemic Neuroprotectant PKCε Restores Mitochondrial Glutamate Oxaloacetate Transaminase in the Neuronal NADH Shuttle after Ischemic Injury. Transl Stroke Res 2019; 11:418-432. [PMID: 31473978 DOI: 10.1007/s12975-019-00729-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 08/13/2019] [Accepted: 08/20/2019] [Indexed: 12/17/2022]
Abstract
The preservation of mitochondrial function is a major protective strategy for cerebral ischemic injuries. Previously, our laboratory demonstrated that protein kinase C epsilon (PKCε) promotes the synthesis of mitochondrial nicotinamide adenine dinucleotide (NAD+). NAD+ along with its reducing equivalent, NADH, is an essential co-factor needed for energy production from glycolysis and oxidative phosphorylation. Yet, NAD+/NADH are impermeable to the inner mitochondrial membrane and their import into the mitochondria requires the activity of specific shuttles. The most important neuronal NAD+/NADH shuttle is the malate-aspartate shuttle (MAS). The MAS has been implicated in synaptic function and is potentially dysregulated during cerebral ischemia. The aim of this study was to determine if metabolic changes induced by PKCε preconditioning involved regulation of the MAS. Using primary neuronal cultures, we observed that the activation of PKCε enhanced mitochondrial respiration and glycolysis in vitro. Conversely, inhibition of the MAS resulted in decreased oxidative phosphorylation and glycolytic capacity. We further demonstrated that activation of PKCε increased the phosphorylation of key components of the MAS in rat brain synaptosomal fractions. Additionally, PKCε increased the enzyme activity of glutamic oxaloacetic transaminase 2 (GOT2), an effect that was dependent on the import of PKCε into the mitochondria and phosphorylation of GOT2. Furthermore, PKCε activation was able to rescue decreased GOT2 activity induced by ischemia. These findings reveal novel protective targets and mechanisms against ischemic injury, which involves PKCε-mediated phosphorylation and activation of GOT2 in the MAS.
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Affiliation(s)
- 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, P.O. Box 016960, Miami, FL, 33136, USA
- Neuroscience Program, University of Miami Leonard M. Miller School of Medicine, Miami, FL, 33136, USA
| | - Nathalie Khoury
- 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, P.O. Box 016960, 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
- Department of Neurology, University of Miami Leonard M. Miller School of Medicine, P.O. Box 016960, 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
- Department of Neurology, University of Miami Leonard M. Miller School of Medicine, P.O. Box 016960, Miami, FL, 33136, USA
- Neuroscience Program, University of Miami Leonard M. Miller School of Medicine, Miami, FL, 33136, USA
| | - Samuel D Stegelmann
- 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, P.O. Box 016960, 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
- Department of Neurology, University of Miami Leonard M. Miller School of Medicine, P.O. Box 016960, Miami, FL, 33136, USA
- Neuroscience Program, University of Miami Leonard M. Miller School of Medicine, Miami, FL, 33136, 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, P.O. Box 016960, Miami, FL, 33136, USA.
- Neuroscience Program, University of Miami Leonard M. Miller School of Medicine, Miami, FL, 33136, USA.
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Zhang J, Zhang W, Gao X, Zhao Y, Chen D, Xu N, Pu H, Stetler RA, Gao Y. Preconditioning with partial caloric restriction confers long-term protection against grey and white matter injury after transient focal ischemia. J Cereb Blood Flow Metab 2019; 39:1394-1409. [PMID: 29972653 PMCID: PMC6668518 DOI: 10.1177/0271678x18785480] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Caloric restriction (CR) has been extensively examined as a preventative strategy against aging and various diseases, but CR effects on cerebral ischemia are largely unknown. We subjected C57BL6/J mice to ad libitum food access (LF) or a diet restricted to 70% of ad libitum food access (RF) for two to four weeks followed by 60 min of transient focal ischemia (tFCI). RF for four weeks protected against subsequent tFCI-induced infarct. RF improved sensorimotor function after stroke in the foot fault and corner tests, as well as performance in the Morris water maze test. In addition, RF preserved ischemic white matter tract integrity assessed by histology and compound action potential. Sirt1 and Sirt3 were both upregulated in RF ischemic brain, but heterozygous deletion of Sirt1 or knockout of Sirt3 did not alter the protection induced by RF against ischemic injury. RF induced significant release of adiponectin, a hormone related to glucose metabolism. Knockout of adiponectin decreased RF-induced protection after tFCI. These data demonstrate the novel finding that white matter, as well as neurons, benefit from CR prior to cerebral ischemic injury, and that adiponectin may contribute to these protective effects.
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Affiliation(s)
- Jia Zhang
- 1 State Key Laboratory of Medical Neurobiology and Institutes of Brain Science, Collaborative Innovation Center for Brain Science, Fudan University, Shanghai, China
| | - Wenting Zhang
- 1 State Key Laboratory of Medical Neurobiology and Institutes of Brain Science, Collaborative Innovation Center for Brain Science, Fudan University, Shanghai, China
| | - Xuguang Gao
- 1 State Key Laboratory of Medical Neurobiology and Institutes of Brain Science, Collaborative Innovation Center for Brain Science, Fudan University, Shanghai, China
| | - Yongfang Zhao
- 1 State Key Laboratory of Medical Neurobiology and Institutes of Brain Science, Collaborative Innovation Center for Brain Science, Fudan University, Shanghai, China
| | - Di Chen
- 1 State Key Laboratory of Medical Neurobiology and Institutes of Brain Science, Collaborative Innovation Center for Brain Science, Fudan University, Shanghai, China
| | - Na Xu
- 1 State Key Laboratory of Medical Neurobiology and Institutes of Brain Science, Collaborative Innovation Center for Brain Science, Fudan University, Shanghai, China.,2 Pittsburgh Institute for Brain Disease and Recovery (PIBDR) and the Department of Neurology, University of Pittsburgh, Pittsburgh PA, USA
| | - Hongjian Pu
- 1 State Key Laboratory of Medical Neurobiology and Institutes of Brain Science, Collaborative Innovation Center for Brain Science, Fudan University, Shanghai, China.,2 Pittsburgh Institute for Brain Disease and Recovery (PIBDR) and the Department of Neurology, University of Pittsburgh, Pittsburgh PA, USA
| | - R Anne Stetler
- 1 State Key Laboratory of Medical Neurobiology and Institutes of Brain Science, Collaborative Innovation Center for Brain Science, Fudan University, Shanghai, China
| | - Yanqin Gao
- 1 State Key Laboratory of Medical Neurobiology and Institutes of Brain Science, Collaborative Innovation Center for Brain Science, Fudan University, Shanghai, China.,2 Pittsburgh Institute for Brain Disease and Recovery (PIBDR) and the Department of Neurology, University of Pittsburgh, Pittsburgh PA, USA
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Liu B, Bai W, Ou G, Zhang J. Cdh1-Mediated Metabolic Switch from Pentose Phosphate Pathway to Glycolysis Contributes to Sevoflurane-Induced Neuronal Apoptosis in Developing Brain. ACS Chem Neurosci 2019; 10:2332-2344. [PMID: 30741526 DOI: 10.1021/acschemneuro.8b00644] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Cdh1 is a regulatory subunit of the anaphase promoting complex/cyclosome (APC/C), known to be involved in regulating neuronal survival. The role of Cdh1 in volatile anesthetics-induced neuronal apoptosis in the developing brain is unknown. In this study, we used postnatal day 7 (P7) and day 21 (P21) mice exposed to 2.3% sevoflurane for 6 h to investigate at which age and duration of exposure sevoflurane affects the expression of Cdh1 and glycolytic enzyme 6-phosphofructo-2-kinase/fructose-2,6-biphosphatase 3 (PFKFB3) and that of the pentose phosphate pathway (PPP) enzyme, glucose-6-phosphate dehydrogenase (G6PD). Furthermore, we tested whether the cyclin-dependent kinases (cdks) inhibitor roscovatine could counteract the effects caused by exposure to sevoflurane. Finally, we applied the glycolysis inhibitor 3-(3-pyridinyl)-1-(4-pyridinyl)-2-propen-1-one (3-PO), G6PD inhibitor dehydroepiandrosterone (DHEA), and exogenous reduced glutathione to examine the contribution of the glycolysis pathway and PPP to sevoflurane-induced neuroapoptosis. We found that prolonged sevoflurane anesthesia significantly reduces the Cdh1 level in P7 mice compared to in the P21 ones; moreover, the decrease in Cdh1 level results in a switch in glucose metabolism from the PPP to neuronal glycolysis. This leads to an imbalance between reactive oxygen species production and reduced glutathione level in the developing brain, which is more susceptible to oxidative stress. As a result, sevoflurane induces neuroapoptosis through Cdh1-mediated glucose metabolism reprogramming. Our study demonstrates a critical role of Cdh1 in sevoflurane-induced neuroapoptosis by shifting PPP to the glycolytic pathway in the developing brain. These findings suggest that Cdh1 may be a novel target for preventing volatile anesthetics-induced neurotoxicity and memory impairment.
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Affiliation(s)
- Bin Liu
- Department of Anesthesiology, Huashan Hospital, Fudan University, Shanghai, People’s Republic of China 200040
| | - Wenjie Bai
- Department of Anesthesiology, Huashan Hospital, Fudan University, Shanghai, People’s Republic of China 200040
| | - Guoyao Ou
- Department of Anesthesiology, Huashan Hospital, Fudan University, Shanghai, People’s Republic of China 200040
| | - Jun Zhang
- Department of Anesthesiology, Huashan Hospital, Fudan University, Shanghai, People’s Republic of China 200040
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Zhang S, Botchway BO, Zhang Y, Liu X. Resveratrol can inhibit Notch signaling pathway to improve spinal cord injury. Ann Anat 2019; 223:100-107. [DOI: 10.1016/j.aanat.2019.01.015] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 01/30/2019] [Accepted: 01/31/2019] [Indexed: 12/12/2022]
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45
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Dumont U, Sanchez S, Olivier B, Chateil JF, Pellerin L, Beauvieux MC, Bouzier-Sore AK, Roumes H. Maternal consumption of piceatannol: A nutritional neuroprotective strategy against hypoxia-ischemia in rat neonates. Brain Res 2019; 1717:86-94. [PMID: 30991041 DOI: 10.1016/j.brainres.2019.04.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 04/11/2019] [Accepted: 04/13/2019] [Indexed: 11/19/2022]
Abstract
Hypoxia-ischemia (HI) remains a major cause of perinatal mortality and chronic disability in newborns worldwide (1-6 for 1000 births) with a high risk of future motor, behavioral and neurological deficits. Keeping newborns under moderate hypothermia is the unique therapeutic approach but is not sufficiently successful as nearly 50% of infants do not respond to it. In a 7-day post-natal rat model of HI, we used pregnant and breastfeeding female nutritional supplementation with piceatannol (PIC), a polyphenol naturally found in berries, grapes and passion fruit, as a neuroprotective strategy. Maternal supplementation led to neuroprotection against neonate brain damage and reversed their sensorimotor deficits as well as cognitive impairments. Neuroprotection of per os maternal supplementation with PIC is a preventive strategy to counteract brain damage in pups induced by HI. This nutritional approach could easily be adopted as a preventive strategy in humans.
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Affiliation(s)
- Ursule Dumont
- CRMSB, UMR 5536, CNRS/University of Bordeaux, 146 Rue Léo Saignat, 33076 Bordeaux Cedex, France.
| | - Stéphane Sanchez
- CRMSB, UMR 5536, CNRS/University of Bordeaux, 146 Rue Léo Saignat, 33076 Bordeaux Cedex, France.
| | - Benjamin Olivier
- CRMSB, UMR 5536, CNRS/University of Bordeaux, 146 Rue Léo Saignat, 33076 Bordeaux Cedex, France.
| | - Jean-François Chateil
- CRMSB, UMR 5536, CNRS/University of Bordeaux, 146 Rue Léo Saignat, 33076 Bordeaux Cedex, France.
| | - Luc Pellerin
- CRMSB, UMR 5536, CNRS/University of Bordeaux, 146 Rue Léo Saignat, 33076 Bordeaux Cedex, France; Department of Physiology, 7 Rue du Bugnon, CH1005 Lausanne, Switzerland.
| | | | - Anne-Karine Bouzier-Sore
- CRMSB, UMR 5536, CNRS/University of Bordeaux, 146 Rue Léo Saignat, 33076 Bordeaux Cedex, France.
| | - Hélène Roumes
- CRMSB, UMR 5536, CNRS/University of Bordeaux, 146 Rue Léo Saignat, 33076 Bordeaux Cedex, France.
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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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Wang Y, Li G, Zhao L, Lv J. Long noncoding RNA HOTTIP alleviates oxygen-glucose deprivation-induced neuronal injury via modulating miR-143/hexokinase 2 pathway. J Cell Biochem 2018; 119:10107-10117. [PMID: 30129112 DOI: 10.1002/jcb.27348] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 06/26/2018] [Indexed: 12/21/2022]
Abstract
HOXA transcript at the distal tip (HOTTIP), which is a long noncoding RNA, plays an important role in multiple cancers and in coronary artery disease. Elevated microRNA-143 (miR-143) expression causes impaired glucose uptake that is responsible for the ischemic cerebral injury. However, the role and mechanism of HOTTIP in ischemic stroke are still unknown. The expression of HOTTIP and miR-143 was first detected in mouse models of transient middle cerebral artery occlusion and in primary neurons exposed to oxygen-glucose deprivation (OGD). We used gain-of function and loss-of function approaches in vitro to investigate the effect and mechanism of HOTTIP on ischemic stroke by evaluating cell viability, apoptosis, and glycolytic metabolism of neurons exposed to OGD. The HOTTIP expression was decreased, whereas miR-143 increased in experimental ischemic stroke models. Overexpression of HOTTIP by the pcDNA3.1-HOTTIP plasmid significantly increased cell viability, glucose uptake, and the expression of hexokinase 2 (HK-2) and pyruvate kinase M2 that were reduced by OGD insult. The HOTTIP overexpression also diminished OGD induced the apoptosis and the caspase-3 activity of neurons. The miR-143 mimic reversed these effects, and anti-miR-143 enhanced them. In addition, we found that HOTTIP could function as a competing endogenous RNA for miR-143 to modulate HK-2 expression. In conclusion, the HOTTIP expression was reduced in ischemic stroke. The HOTTIP overexpression attenuated OGD-induced neuronal injury and imbalanced glycolytic metabolism by sponging miR-143, resulting in the de-repression of its endogenous target HK-2. Taken together, these findings improve understanding of the pathogenesis of ischemic stroke.
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Affiliation(s)
- Yan Wang
- Department of Neurology, Cangzhou Central Hospital, Cangzhou City, Hebei Province, China
| | - Guoce Li
- Department of Neurology, Cangzhou Central Hospital, Cangzhou City, Hebei Province, China
| | - Li Zhao
- Department of Neurology, Cangzhou Central Hospital, Cangzhou City, Hebei Province, China
| | - Jianping Lv
- Department of Neurology, Cangzhou Central Hospital, Cangzhou City, Hebei Province, China
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Xu J, Jackson CW, Khoury N, Escobar I, Perez-Pinzon MA. Brain SIRT1 Mediates Metabolic Homeostasis and Neuroprotection. Front Endocrinol (Lausanne) 2018; 9:702. [PMID: 30532738 PMCID: PMC6265504 DOI: 10.3389/fendo.2018.00702] [Citation(s) in RCA: 89] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Accepted: 11/06/2018] [Indexed: 12/13/2022] Open
Abstract
Sirtuins are evolutionarily conserved proteins that use nicotinamide adenine dinucleotide (NAD+) as a co-substrate in their enzymatic reactions. There are seven proteins (SIRT1-7) in the human sirtuin family, among which SIRT1 is the most conserved and characterized. SIRT1 in the brain, in particular, within the hypothalamus, plays crucial roles in regulating systemic energy homeostasis and circadian rhythm. Apart from this, SIRT1 has also been found to mediate beneficial effects in neurological diseases. In this review, we will first summarize how SIRT1 in the brain relates to obesity, type 2 diabetes, and circadian synchronization, and then we discuss the neuroprotective roles of brain SIRT1 in the context of cerebral ischemia and neurodegenerative disorders.
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Affiliation(s)
- Jing Xu
- Cerebral Vascular Disease Research Laboratories, Department of Neurology, Leonard M. Miller School of Medicine, University of Miami, Miami, FL, United States
- Department of Neurology, Leonard M. Miller School of Medicine, University of Miami, Miami, FL, United States
| | - Charlie W. Jackson
- Cerebral Vascular Disease Research Laboratories, Department of Neurology, Leonard M. Miller School of Medicine, University of Miami, Miami, FL, United States
- Department of Neurology, Leonard M. Miller School of Medicine, University of Miami, Miami, FL, United States
| | - Nathalie Khoury
- Cerebral Vascular Disease Research Laboratories, Department of Neurology, Leonard M. Miller School of Medicine, University of Miami, Miami, FL, United States
- Department of Neurology, Leonard M. Miller School of Medicine, University of Miami, Miami, FL, United States
| | - Iris Escobar
- Cerebral Vascular Disease Research Laboratories, Department of Neurology, Leonard M. Miller School of Medicine, University of Miami, Miami, FL, United States
- Department of Neurology, Leonard M. Miller School of Medicine, University of Miami, Miami, FL, United States
| | - Miguel A. Perez-Pinzon
- Cerebral Vascular Disease Research Laboratories, Department of Neurology, Leonard M. Miller School of Medicine, University of Miami, Miami, FL, United States
- Department of Neurology, Leonard M. Miller School of Medicine, University of Miami, Miami, FL, United States
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49
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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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50
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Fujita Y, Yamashita T. Sirtuins in Neuroendocrine Regulation and Neurological Diseases. Front Neurosci 2018; 12:778. [PMID: 30416425 PMCID: PMC6213750 DOI: 10.3389/fnins.2018.00778] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Accepted: 10/08/2018] [Indexed: 12/12/2022] Open
Abstract
Silent information regulator 1 (SIRT1) is a mammalian homolog of the nicotinamide adenine dinucleotide (NAD)-dependent deacetylase sirtuin family. Sirtuin was originally studied as the lifespan-extending gene, silent information regulator 2 (SIRT2) in budding yeast. There are seven mammalian homologs of sirtuin (SIRT1–7), and SIRT1 is the closest homolog to SIRT2. SIRT1 modulates various key targets via deacetylation. In addition to histones, these targets include transcription factors, such as forkhead box O (FOXO), Ku70, p53, NF-κB, PPAR-gamma co-activator 1-alpha (PGC-1α), and peroxisome proliferator-activated receptor γ (PPARγ). SIRT1 has many biological functions, including aging, cell survival, differentiation, and metabolism. Genetic and physiological analyses in animal models have shown beneficial roles for SIRT1 in the brain during both development and adulthood. Evidence from in vivo and in vitro studies have revealed that SIRT1 regulates the cellular fate of neural progenitors, axon elongation, dendritic branching, synaptic plasticity, and endocrine function. In addition to its importance in physiological processes, SIRT1 has also been implicated in protection of neurons from degeneration in models of neurological diseases, such as traumatic brain injury and Alzheimer’s disease. In this review, we focus on the role of SIRT1 in the neuroendocrine system and neurodegenerative diseases. We also discuss the potential therapeutic implications of targeting the sirtuin pathway.
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Affiliation(s)
- Yuki Fujita
- Department of Molecular Neuroscience, Graduate School of Medicine, Osaka University, Suita, Japan.,WPI Immunology Frontier Research Center, Osaka University, Suita, Japan
| | - Toshihide Yamashita
- Department of Molecular Neuroscience, Graduate School of Medicine, Osaka University, Suita, Japan.,WPI Immunology Frontier Research Center, Osaka University, Suita, Japan.,Graduate School of Frontier Biosciences, Osaka University, Suita, Japan
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