1
|
Exercise-induced neuroprotection against cerebral ischemia/reperfusion injury is mediated via alleviating inflammasome-induced pyroptosis. Exp Neurol 2021; 349:113952. [PMID: 34921847 DOI: 10.1016/j.expneurol.2021.113952] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 11/22/2021] [Accepted: 12/13/2021] [Indexed: 12/26/2022]
Abstract
As a primary nonpharmacological tool, exercise training is neuroprotective after experimental ischemic stroke by relieving neuroinflammation. However, the specific mechanism of which and anti-inflammatory effect of exercise at different intensities require in-depth investigations. To explore the issue, middle cerebral artery occlusion-reperfusion (MCAO-r) in mice were utilized, with subsequent exercise training at different intensities (high-intensity interval training versus moderate-intensity continuous training, i.e. HIIT vs. MICT) during an early phase post-modeling. The neurobehavioral assessment showed that MICT improved the performance of neurological deficit scores and rotarod test earlier, while HIIT appeared to be more efficacious to meliorate locomotor impairments and aerobic fitness at the end of intervention. Both exercise regimens inhibited the expressions of NLRP3 inflammasome components (NLRP3, ASC, and Cl.caspase-1) and pyroptosis-associated proteins (GSDMD, Cl.IL-1β, and Cl.IL-18) as indicated by western blot and immunofluorescence co-staining. Multiplex assay panel revealed that both exercise regimens reduced the levels of pro-inflammatory cytokines and upregulated anti-inflammatory cytokine. Furthermore, an increased proportion of M2-like microglia and a diminished proportion of M1-like microglia in the peri-infarct zone were observed by colocalization analysis, which was jointly validated by western blot. Here, for the first time, our study demonstrated that HIIT elicited better improvements at functional and cardiovascular levels than MICT after ischemic stroke, and anti-inflammatory effect of exercise might result from suppression in inflammasome-mediated pyroptosis by shifting microglial polarization toward neuroprotective M2 phenotype.
Collapse
|
2
|
Lozinski BM, de Almeida LGN, Silva C, Dong Y, Brown D, Chopra S, Yong VW, Dufour A. Exercise rapidly alters proteomes in mice following spinal cord demyelination. Sci Rep 2021; 11:7239. [PMID: 33790323 PMCID: PMC8012633 DOI: 10.1038/s41598-021-86593-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 03/16/2021] [Indexed: 02/01/2023] Open
Abstract
Exercise affords broad benefits for people with multiple sclerosis (PwMS) including less fatigue, depression, and improved cognition. In animal models of multiple sclerosis (MS), exercise has been shown to improve remyelination, decrease blood-brain barrier permeability and reduce leukocyte infiltration. Despite these benefits many PwMS refrain from engaging in physical activity. This barrier to participation in exercise may be overcome by uncovering and describing the mechanisms by which exercise promotes beneficial changes in the central nervous system (CNS). Here, we show that acute bouts of exercise in mice profoundly alters the proteome in demyelinating lesions. Following lysolecithin induced demyelination of the ventral spinal cord, mice were given immediate access to a running wheel for 4 days. Lesioned spinal cords and peripheral blood serum were then subjected to tandem mass tag labeling shotgun proteomics workflow to identify alteration in protein levels. We identified 86 significantly upregulated and 85 downregulated proteins in the lesioned spinal cord as well as 14 significantly upregulated and 11 downregulated proteins in the serum following acute exercise. Altered pathways following exercise in demyelinated mice include oxidative stress response, metabolism and transmission across chemical synapses. Similar acute bout of exercise in naïve mice also changed several proteins in the serum and spinal cord, including those for metabolism and anti-oxidant responses. Improving our understanding of the mechanisms and duration of activity required to influence the injured CNS should motivate PwMS and other conditions to embrace exercise as part of their therapy to manage CNS disability.
Collapse
Affiliation(s)
- Brian Mark Lozinski
- Department of Clinical Neurosciences, University of Calgary, Alberta, Canada
- The Hotchkiss Brain Institute, University of Calgary, Alberta, Canada
| | - Luiz Gustavo Nogueira de Almeida
- Department of Biochemistry and Molecular Biology, University of Calgary, Alberta, Canada
- HRIC 3C64, Department of Physiology and Pharmacology, University of Calgary, 3330 Hospital Drive Calgary, Alberta, T2N 4N1, Canada
- McCaig Institute for Bone and Joint Health, University of Calgary, Alberta, Canada
| | - Claudia Silva
- Department of Clinical Neurosciences, University of Calgary, Alberta, Canada
- The Hotchkiss Brain Institute, University of Calgary, Alberta, Canada
| | - Yifei Dong
- Department of Clinical Neurosciences, University of Calgary, Alberta, Canada
- The Hotchkiss Brain Institute, University of Calgary, Alberta, Canada
| | - Dennis Brown
- Department of Clinical Neurosciences, University of Calgary, Alberta, Canada
- The Hotchkiss Brain Institute, University of Calgary, Alberta, Canada
| | - Sameeksha Chopra
- Department of Biochemistry and Molecular Biology, University of Calgary, Alberta, Canada
- HRIC 3C64, Department of Physiology and Pharmacology, University of Calgary, 3330 Hospital Drive Calgary, Alberta, T2N 4N1, Canada
- McCaig Institute for Bone and Joint Health, University of Calgary, Alberta, Canada
| | - V Wee Yong
- Department of Clinical Neurosciences, University of Calgary, Alberta, Canada
- The Hotchkiss Brain Institute, University of Calgary, Alberta, Canada
| | - Antoine Dufour
- Department of Biochemistry and Molecular Biology, University of Calgary, Alberta, Canada.
- HRIC 3C64, Department of Physiology and Pharmacology, University of Calgary, 3330 Hospital Drive Calgary, Alberta, T2N 4N1, Canada.
- The Hotchkiss Brain Institute, University of Calgary, Alberta, Canada.
- McCaig Institute for Bone and Joint Health, University of Calgary, Alberta, Canada.
| |
Collapse
|
3
|
Savage JC, Tremblay MÈ. Studying Laboratory Mice - Into the Wild. Trends Neurosci 2019; 42:566-568. [PMID: 31171382 DOI: 10.1016/j.tins.2019.05.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Accepted: 05/19/2019] [Indexed: 11/15/2022]
Abstract
Studies using rewilded laboratory mice have begun to provide important clues into the complex relationship between environment, immunity, and behavior. In a recent paper, Cope and colleagues (Hippocampus, 2019) showed that exposing laboratory mice to outdoor living, either with or without peripheral worm infection, increased adult neurogenesis and had major effects on microglia, but only outdoor living coupled with worm infection increased anxiety.
Collapse
Affiliation(s)
- Julie C Savage
- Neurosciences Axis, Centre de recherche du CHU de Québec, 2705 Boulevard Laurier, Québec, G1V 4G2, Canada
| | - Marie-Ève Tremblay
- Neurosciences Axis, Centre de recherche du CHU de Québec, 2705 Boulevard Laurier, Québec, G1V 4G2, Canada.
| |
Collapse
|
4
|
de Souza RF, de Moraes SRA, Augusto RL, de Freitas Zanona A, Matos D, Aidar FJ, da Silveira Andrade-da-Costa BL. Endurance training on rodent brain antioxidant capacity: A meta-analysis. Neurosci Res 2018; 145:1-9. [PMID: 30326252 DOI: 10.1016/j.neures.2018.09.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 08/25/2018] [Accepted: 09/03/2018] [Indexed: 01/21/2023]
Abstract
The influence of physical exercise on brain antioxidant defense mechanisms has been studied. Nevertheless, the effect of training volume on the brain`s redox balance remains unclear. In this meta-analysis, we compared the effect of training volume on antioxidant enzymatic resource and lipid peroxidation on various brain regions. The activities of the enzymes glutathione peroxidase (GPx), superoxide dismutase (SOD), catalase (CAT) and the levels of thiobarbituric acid reactive substances (TBARS) were also evaluated. The effects of training periods (weeks) and exercise duration were compared. Meta-analysis revealed that protocols over 8 weeks were associated with an increase in SOD (p = 0.0008) and CAT activities (p = 0.0001). Exercise durations for 30 and 60 min were associated with higher CAT activity (p = 0.04). Joint analysis revealed that moderate physical exercise over 4 and 8 weeks promoted a healthy enzymatic balance. However, high volumes of exercise over 8 weeks were associated with the increased antioxidant enzymatic activity, indicating higher reactive oxygen species (ROS) levels. The data also indicated that there is still limited research and inaccurate information, on the safety conditions of training periods that simulate tests of ultra resistance in humans.
Collapse
Affiliation(s)
- Raphael Fabricio de Souza
- Laboratory of Neurophysiology, Department of Physiology and Pharmacology, Center of Biosciences, Federal University of Pernambuco, Recife, Brazil; Graduate Program in Neuropsychiatry and Behavioral Sciences, Federal University of Pernambuco, Recife, Brazil; Department of Physical Education, Federal University of Sergipe - UFS, São Cristovão, Sergipe, Brazil; Group of Studies and Research of Performance, Sport, Health and Paralympic Sports - GEPEPS, Federal University of Sergipe - UFS, São Cristovão, Sergipe, Brazil.
| | | | - Ricielle Lopes Augusto
- Laboratory of Neurophysiology, Department of Physiology and Pharmacology, Center of Biosciences, Federal University of Pernambuco, Recife, Brazil
| | - Aristela de Freitas Zanona
- Graduate Program in Neuropsychiatry and Behavioral Sciences, Federal University of Pernambuco, Recife, Brazil
| | - Dihogo Matos
- Group of Studies and Research of Performance, Sport, Health and Paralympic Sports - GEPEPS, Federal University of Sergipe - UFS, São Cristovão, Sergipe, Brazil
| | - Felipe J Aidar
- Department of Physical Education, Federal University of Sergipe - UFS, São Cristovão, Sergipe, Brazil; Group of Studies and Research of Performance, Sport, Health and Paralympic Sports - GEPEPS, Federal University of Sergipe - UFS, São Cristovão, Sergipe, Brazil; Graduate Program in Physiological Science, Federal University of Sergipe - UFS, São Cristovão, Sergipe, Brazil
| | - Belmira Lara da Silveira Andrade-da-Costa
- Laboratory of Neurophysiology, Department of Physiology and Pharmacology, Center of Biosciences, Federal University of Pernambuco, Recife, Brazil; Graduate Program in Neuropsychiatry and Behavioral Sciences, Federal University of Pernambuco, Recife, Brazil
| |
Collapse
|
5
|
Jiang T, Zhang L, Pan X, Zheng H, Chen X, Li L, Luo J, Hu X. Physical Exercise Improves Cognitive Function Together with Microglia Phenotype Modulation and Remyelination in Chronic Cerebral Hypoperfusion. Front Cell Neurosci 2017; 11:404. [PMID: 29311834 PMCID: PMC5743796 DOI: 10.3389/fncel.2017.00404] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Accepted: 12/04/2017] [Indexed: 01/10/2023] Open
Abstract
Myelin is closely associated with cognitive function and is extremely vulnerable to damage in ischemic cerebrovascular diseases. The failure of remyelination is mainly due to limitations in oligodendrocyte progenitor cells (OPCs) differentiation in the damaged area. Previous studies have shown that physical exercise can improve vascular cognitive impairment, but whether it can reverse the defect in remyelination during ischemic injury and the underlying mechanism remains unclear. In this study, we observed the effects of physical exercise on chronic cerebral hypoperfusion (CCH) established by bilateral carotid artery occlusion. The cognitive function, myelin integrity, OPCs proliferation and differentiation, as well as microglia polarization were analyzed at 28 days after CCH. Besides, the expression of CX3CL1/CX3CR1 axis and activation of mitogen-activated protein kinase (MAPK) signal cascades were also evaluated. We found that physical exercise improved the cognitive function of rats with CCH, alleviated myelin injury, triggered OPCs proliferation and differentiation, facilitated microglia polarization toward M2, augmented the expression of CX3CL1/CX3CR1 axis, and reduced ERK and JNK phosphorylation. The results indicated that physical exercise improved the cognitive function of rats with CCH, possibly through microglial phenotype modulation and enhancement of oligodendrocytegenesis and remyelination. Moreover, the CX3CL1/CX3CR1 axis played an important role in this process by mediating ERK- and JNK-dependent pathways.
Collapse
Affiliation(s)
- Ting Jiang
- Department of Rehabilitation Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Liying Zhang
- Department of Rehabilitation Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xiaona Pan
- Department of Rehabilitation Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Haiqing Zheng
- Department of Rehabilitation Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xi Chen
- Department of Rehabilitation Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Lili Li
- Department of Rehabilitation Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jing Luo
- Department of Rehabilitation Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xiquan Hu
- Department of Rehabilitation Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| |
Collapse
|
6
|
Pin-Barre C, Constans A, Brisswalter J, Pellegrino C, Laurin J. Effects of High- Versus Moderate-Intensity Training on Neuroplasticity and Functional Recovery After Focal Ischemia. Stroke 2017; 48:2855-2864. [DOI: 10.1161/strokeaha.117.017962] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 07/28/2017] [Accepted: 08/01/2017] [Indexed: 12/18/2022]
Affiliation(s)
- Caroline Pin-Barre
- From the Université Nice Sophia Antipolis, Université de Toulon, LAMHESS, Nice, France (C.P.-B., J.B.); and Aix Marseille Université, CNRS, ISM, Marseille, France (A.C., J.L.); and Aix Marseille Université, INSERM, INMED, Marseille, France (C.P.)
| | - Annabelle Constans
- From the Université Nice Sophia Antipolis, Université de Toulon, LAMHESS, Nice, France (C.P.-B., J.B.); and Aix Marseille Université, CNRS, ISM, Marseille, France (A.C., J.L.); and Aix Marseille Université, INSERM, INMED, Marseille, France (C.P.)
| | - Jeanick Brisswalter
- From the Université Nice Sophia Antipolis, Université de Toulon, LAMHESS, Nice, France (C.P.-B., J.B.); and Aix Marseille Université, CNRS, ISM, Marseille, France (A.C., J.L.); and Aix Marseille Université, INSERM, INMED, Marseille, France (C.P.)
| | - Christophe Pellegrino
- From the Université Nice Sophia Antipolis, Université de Toulon, LAMHESS, Nice, France (C.P.-B., J.B.); and Aix Marseille Université, CNRS, ISM, Marseille, France (A.C., J.L.); and Aix Marseille Université, INSERM, INMED, Marseille, France (C.P.)
| | - Jérôme Laurin
- From the Université Nice Sophia Antipolis, Université de Toulon, LAMHESS, Nice, France (C.P.-B., J.B.); and Aix Marseille Université, CNRS, ISM, Marseille, France (A.C., J.L.); and Aix Marseille Université, INSERM, INMED, Marseille, France (C.P.)
| |
Collapse
|
7
|
Activity-Dependent and Experience-Driven Myelination Provide New Directions for the Management of Multiple Sclerosis. Trends Neurosci 2016; 39:356-365. [PMID: 27113322 DOI: 10.1016/j.tins.2016.04.003] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Revised: 03/26/2016] [Accepted: 04/04/2016] [Indexed: 11/20/2022]
Abstract
Despite an appreciation of the importance of myelination and the consequences of pathological demyelination, the fundamental mechanisms regulating myelination are only now being resolved. Neuronal activity has long been considered a plausible regulatory signal for myelination. However, controversy surrounding its dispensability in certain contexts and the difficulty in determining to what degree it influences myelination has limited its widespread acceptance. Recent studies have shed new light on the role of neuronal activity in regulating oligodendrogenesis and myelination. Further, the dynamics of myelin in adulthood and the association between skilled learning and myelination have become increasingly well characterized. These advances present new considerations for the management of multiple sclerosis and open up new approaches to facilitate remyelination following pathological demyelination.
Collapse
|