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Lin X, Wang X, Zhang Y, Chu G, Liang J, Zhang B, Lu Y, Steward O, Luo J. Synergistic effect of chemogenetic activation of corticospinal motoneurons and physical exercise in promoting functional recovery after spinal cord injury. Exp Neurol 2023; 370:114549. [PMID: 37774765 DOI: 10.1016/j.expneurol.2023.114549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 09/06/2023] [Accepted: 09/25/2023] [Indexed: 10/01/2023]
Abstract
Single therapeutic interventions have not yet been successful in restoring function after spinal cord injury. Accordingly, combinatorial interventions targeting multiple factors may hold greater promise for achieving maximal functional recovery. In this study, we applied a combinatorial approach of chronic chemogenetic neuronal activation and physical exercise including treadmill running and forelimb training tasks to promote functional recovery. In a mouse model of cervical (C5) dorsal hemisection of the spinal cord, which transects almost all descending corticospinal tract axons, combining selective activation of corticospinal motoneurons (CMNs) by intersectional chemogenetics with physical exercise significantly promoted functional recovery evaluated by the grid walking test, grid hanging test, rotarod test, and single pellet-reaching tasks. Electromyography and histological analysis showed increased activation of forelimb muscles via chemogenetic stimuli, and a greater density of vGlut1+ innervation in spinal cord grey matter rostral to the injury, suggesting enhanced neuroplasticity and connectivity. Combined therapy also enhanced activation of mTOR signaling and reduced apoptosis in spinal motoneurons, Counts revealed increased numbers of detectable choline acetyltransferase-positive motoneurons in the ventral horn. Taken together, the findings from this study validate a novel combinatorial approach to enhance motor function after spinal cord injury.
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Affiliation(s)
- Xueling Lin
- Department of Physiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Xiuping Wang
- Department of Physiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Yuejin Zhang
- Department of Physiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Guangpin Chu
- Department of Physiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Jingwen Liang
- Department of Physiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Bin Zhang
- Department of Physiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Yisheng Lu
- Department of Physiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
| | - Oswald Steward
- Reeve-Irvine Research Center, University of California Irvine School of Medicine, USA; Department of Anatomy & Neurobiology, University of California Irvine School of Medicine, USA; Department of Neurobiology & Behavior, University of California Irvine, USA; Department of Neurosurgery, University of California Irvine School of Medicine, USA.
| | - Juan Luo
- Department of Physiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
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Yang J, Liang R, Wang L, Zheng C, Xiao X, Ming D. Repetitive Transcranial Magnetic Stimulation (rTMS) Improves the Gait Disorders of Rats Under Simulated Microgravity Conditions Associated With the Regulation of Motor Cortex. Front Physiol 2021; 12:587515. [PMID: 33613305 PMCID: PMC7890125 DOI: 10.3389/fphys.2021.587515] [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: 07/26/2020] [Accepted: 01/15/2021] [Indexed: 11/25/2022] Open
Abstract
In previous studies, it has been proved that repetitive transcranial magnetic stimulation (rTMS) improves dyskinesia induced by conditions such as spinal cord injury, Parkinson diseases and cerebral ischemia. However, it is still unknown whether it can be used as a countermeasure for gait disorders in astronauts during space flight. In this study, we evaluated the effects of rTMS on the rat gait function under simulated microgravity (SM) conditions. The SM procedure continued for consecutive 21 days in male Wistar rats. Meanwhile, the high-frequency rTMS (10 Hz) was applied for 14 days from the eighth day of SM procedure. The behavioral results showed that SM could cause gait disorders such as decreased walking ability and contralateral limb imbalance in rats, which could be reversed by rTMS. Furthermore, rTMS affected the neural oscillations of motor cortex, enhancing in δ (2–4 Hz) band, suppressing in θ (4–7 Hz), and α (7–12 Hz) bands. Additionally, rTMS could activate mTOR in the motor cortex. These data suggests that the improvement effects of rTMS on gait disorders in rats under SM conditions might be associated with its regulation on neural oscillations in the cerebral motor cortex and the expression of some motor-related proteins which may enhance the control of nervous system on muscle function. Based on our results, rTMS can be used as an potential effective supplement in the field of clinical and rehabilitation research to reduce gait disorders caused by the space environment.
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Affiliation(s)
- Jiajia Yang
- Institute of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China.,School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin, China.,Tianjin Key Laboratory of Brain Science and Neural Engineering, Tianjin University, Tianjin, China
| | - Rong Liang
- Institute of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China
| | - Ling Wang
- School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin, China
| | - Chenguang Zheng
- School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin, China.,Tianjin Key Laboratory of Brain Science and Neural Engineering, Tianjin University, Tianjin, China
| | - Xi Xiao
- Institute of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China.,Tianjin Key Laboratory of Brain Science and Neural Engineering, Tianjin University, Tianjin, China
| | - Dong Ming
- Institute of Medical Engineering and Translational Medicine, Tianjin University, Tianjin, China.,School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin, China.,Tianjin Key Laboratory of Brain Science and Neural Engineering, Tianjin University, Tianjin, China
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Canu MH, Fourneau J, Coq JO, Dannhoffer L, Cieniewski-Bernard C, Stevens L, Bastide B, Dupont E. Interplay between hypoactivity, muscle properties and motor command: How to escape the vicious deconditioning circle? Ann Phys Rehabil Med 2018; 62:122-127. [PMID: 30394346 DOI: 10.1016/j.rehab.2018.09.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 09/24/2018] [Accepted: 09/30/2018] [Indexed: 10/28/2022]
Abstract
Activity-dependent processes addressing the central nervous system (CNS) and musculoskeletal structures are critical for maintaining motor performance. Chronic reduction in activity, whether due to a sedentary lifestyle or extended bed rest, results in impaired performance in motor tasks and thus decreased quality of life. In the first part of this paper, we give a narrative review of the effects of hypoactivity on the neuromuscular system and behavioral outcomes. Motor impairments arise from a combination of factors including altered muscle properties, impaired afferent input, and plastic changes in neural structure and function throughout the nervous system. There is a reciprocal interplay between the CNS and muscle properties, and these sensorimotor loops are essential for controlling posture and movement. As a result, patients under hypoactivity experience a self-perpetuating cycle, in with sedentarity leading to decreased motor activity and thus a progressive worsening of a situation, and finally deconditioning. Various rehabilitation strategies have been studied to slow down or reverse muscle alteration and altered motor performance. In the second part of the paper, we review representative protocols directed toward the muscle, the sensory input and/or the cerebral cortex. Improving an understanding of the loss of motor function under conditions of disuse (such as extended bed rest) as well as identifying means to slow this decline may lead to therapeutic strategies to preserve quality of life for a range of individuals. The most efficient strategies seem multifactorial, using a combination of approaches targeting different levels of the neuromuscular system.
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Affiliation(s)
- Marie-Hélène Canu
- EA 7369 "activité physique, muscle et santé", unité de recherche pluridisciplinaire sport santé société (URePSSS), université de Lille, 59000 Lille, France.
| | - Julie Fourneau
- EA 7369 "activité physique, muscle et santé", unité de recherche pluridisciplinaire sport santé société (URePSSS), université de Lille, 59000 Lille, France
| | - Jacques-Olivier Coq
- UMR 7289, CNRS, institut de neurosciences de la Timone, Aix-Marseille université, 13385 Marseille, France
| | - Luc Dannhoffer
- EA 7369 "activité physique, muscle et santé", unité de recherche pluridisciplinaire sport santé société (URePSSS), université de Lille, 59000 Lille, France
| | - Caroline Cieniewski-Bernard
- EA 7369 "activité physique, muscle et santé", unité de recherche pluridisciplinaire sport santé société (URePSSS), université de Lille, 59000 Lille, France
| | - Laurence Stevens
- EA 7369 "activité physique, muscle et santé", unité de recherche pluridisciplinaire sport santé société (URePSSS), université de Lille, 59000 Lille, France
| | - Bruno Bastide
- EA 7369 "activité physique, muscle et santé", unité de recherche pluridisciplinaire sport santé société (URePSSS), université de Lille, 59000 Lille, France
| | - Erwan Dupont
- EA 7369 "activité physique, muscle et santé", unité de recherche pluridisciplinaire sport santé société (URePSSS), université de Lille, 59000 Lille, France
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Marciniak E, Leboucher A, Caron E, Ahmed T, Tailleux A, Dumont J, Issad T, Gerhardt E, Pagesy P, Vileno M, Bournonville C, Hamdane M, Bantubungi K, Lancel S, Demeyer D, Eddarkaoui S, Vallez E, Vieau D, Humez S, Faivre E, Grenier-Boley B, Outeiro TF, Staels B, Amouyel P, Balschun D, Buee L, Blum D. Tau deletion promotes brain insulin resistance. J Exp Med 2017; 214:2257-2269. [PMID: 28652303 PMCID: PMC5551570 DOI: 10.1084/jem.20161731] [Citation(s) in RCA: 141] [Impact Index Per Article: 20.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Revised: 03/20/2017] [Accepted: 05/12/2017] [Indexed: 12/13/2022] Open
Abstract
The molecular pathways underlying tau pathology-induced synaptic/cognitive deficits and neurodegeneration are poorly understood. One prevalent hypothesis is that hyperphosphorylation, misfolding, and fibrillization of tau impair synaptic plasticity and cause degeneration. However, tau pathology may also result in the loss of specific physiological tau functions, which are largely unknown but could contribute to neuronal dysfunction. In the present study, we uncovered a novel function of tau in its ability to regulate brain insulin signaling. We found that tau deletion leads to an impaired hippocampal response to insulin, caused by altered IRS-1 and PTEN (phosphatase and tensin homologue on chromosome 10) activities. Our data also demonstrate that tau knockout mice exhibit an impaired hypothalamic anorexigenic effect of insulin that is associated with energy metabolism alterations. Consistently, we found that tau haplotypes are associated with glycemic traits in humans. The present data have far-reaching clinical implications and raise the hypothesis that pathophysiological tau loss-of-function favors brain insulin resistance, which is instrumental for cognitive and metabolic impairments in Alzheimer's disease patients.
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Affiliation(s)
- Elodie Marciniak
- Université de Lille, Institut National de la Santé et de la Recherche Medicale (INSERM), CHU Lille, UMR-S 1172 JPArc, Lille, France.,LabEx DISTALZ (Development of Innovative Strategies for a Transdisciplinary approach to ALZheimer's disease), Lille, France
| | - Antoine Leboucher
- Université de Lille, Institut National de la Santé et de la Recherche Medicale (INSERM), CHU Lille, UMR-S 1172 JPArc, Lille, France.,LabEx DISTALZ (Development of Innovative Strategies for a Transdisciplinary approach to ALZheimer's disease), Lille, France
| | - Emilie Caron
- Université de Lille, Institut National de la Santé et de la Recherche Medicale (INSERM), CHU Lille, UMR-S 1172 JPArc, Lille, France
| | - Tariq Ahmed
- Laboratory of Biological Psychology, Faculty of Psychology and Educational Sciences, KU Leuven, Leuven, Belgium.,Neurological Disorders Research Center, Qatar Biomedical Research Institute, Hamad Bin Khalifa University, Doha, Qatar
| | - Anne Tailleux
- Université de Lille, INSERM, CHU Lille, Institut Pasteur de Lille, U1011EGID, Lille, France
| | - Julie Dumont
- LabEx DISTALZ (Development of Innovative Strategies for a Transdisciplinary approach to ALZheimer's disease), Lille, France.,Université de Lille, INSERM, CHU Lille, Institut Pasteur de Lille, U1167 RID-AGE Facteurs de Risque et Déterminants Moléculaires des Maladies Liées au Vieillissement, Lille, France
| | - Tarik Issad
- INSERM U1016, CNRS UMR8104, Université Paris Descartes Sorbonne Paris Cité, Institut Cochin, Paris, France
| | - Ellen Gerhardt
- Department of Experimental Neurodegeneration, Center for Nanoscale Microscopy and Molecular Physiology of the Brain, University Medical Center Goettingen, Goettingen, Germany
| | - Patrick Pagesy
- INSERM U1016, CNRS UMR8104, Université Paris Descartes Sorbonne Paris Cité, Institut Cochin, Paris, France
| | - Margaux Vileno
- Université de Lille, Institut National de la Santé et de la Recherche Medicale (INSERM), CHU Lille, UMR-S 1172 JPArc, Lille, France.,LabEx DISTALZ (Development of Innovative Strategies for a Transdisciplinary approach to ALZheimer's disease), Lille, France
| | - Clément Bournonville
- Université de Lille, Institut National de la Santé et de la Recherche Medicale (INSERM), CHU Lille, UMR-S 1172 JPArc, Lille, France.,LabEx DISTALZ (Development of Innovative Strategies for a Transdisciplinary approach to ALZheimer's disease), Lille, France
| | - Malika Hamdane
- Université de Lille, Institut National de la Santé et de la Recherche Medicale (INSERM), CHU Lille, UMR-S 1172 JPArc, Lille, France.,LabEx DISTALZ (Development of Innovative Strategies for a Transdisciplinary approach to ALZheimer's disease), Lille, France
| | - Kadiombo Bantubungi
- Université de Lille, INSERM, CHU Lille, Institut Pasteur de Lille, U1011EGID, Lille, France
| | - Steve Lancel
- Université de Lille, INSERM, CHU Lille, Institut Pasteur de Lille, U1011EGID, Lille, France
| | - Dominique Demeyer
- Université de Lille, Institut National de la Santé et de la Recherche Medicale (INSERM), CHU Lille, UMR-S 1172 JPArc, Lille, France.,LabEx DISTALZ (Development of Innovative Strategies for a Transdisciplinary approach to ALZheimer's disease), Lille, France
| | - Sabiha Eddarkaoui
- Université de Lille, Institut National de la Santé et de la Recherche Medicale (INSERM), CHU Lille, UMR-S 1172 JPArc, Lille, France.,LabEx DISTALZ (Development of Innovative Strategies for a Transdisciplinary approach to ALZheimer's disease), Lille, France
| | - Emmanuelle Vallez
- Université de Lille, INSERM, CHU Lille, Institut Pasteur de Lille, U1011EGID, Lille, France
| | - Didier Vieau
- Université de Lille, Institut National de la Santé et de la Recherche Medicale (INSERM), CHU Lille, UMR-S 1172 JPArc, Lille, France.,LabEx DISTALZ (Development of Innovative Strategies for a Transdisciplinary approach to ALZheimer's disease), Lille, France
| | - Sandrine Humez
- Université de Lille, Institut National de la Santé et de la Recherche Medicale (INSERM), CHU Lille, UMR-S 1172 JPArc, Lille, France.,LabEx DISTALZ (Development of Innovative Strategies for a Transdisciplinary approach to ALZheimer's disease), Lille, France
| | - Emilie Faivre
- Université de Lille, Institut National de la Santé et de la Recherche Medicale (INSERM), CHU Lille, UMR-S 1172 JPArc, Lille, France.,LabEx DISTALZ (Development of Innovative Strategies for a Transdisciplinary approach to ALZheimer's disease), Lille, France
| | - Benjamin Grenier-Boley
- LabEx DISTALZ (Development of Innovative Strategies for a Transdisciplinary approach to ALZheimer's disease), Lille, France.,Université de Lille, INSERM, CHU Lille, Institut Pasteur de Lille, U1167 RID-AGE Facteurs de Risque et Déterminants Moléculaires des Maladies Liées au Vieillissement, Lille, France
| | - Tiago F Outeiro
- Department of Experimental Neurodegeneration, Center for Nanoscale Microscopy and Molecular Physiology of the Brain, University Medical Center Goettingen, Goettingen, Germany
| | - Bart Staels
- Université de Lille, INSERM, CHU Lille, Institut Pasteur de Lille, U1011EGID, Lille, France
| | - Philippe Amouyel
- LabEx DISTALZ (Development of Innovative Strategies for a Transdisciplinary approach to ALZheimer's disease), Lille, France.,Université de Lille, INSERM, CHU Lille, Institut Pasteur de Lille, U1167 RID-AGE Facteurs de Risque et Déterminants Moléculaires des Maladies Liées au Vieillissement, Lille, France
| | - Detlef Balschun
- Laboratory of Biological Psychology, Faculty of Psychology and Educational Sciences, KU Leuven, Leuven, Belgium
| | - Luc Buee
- Université de Lille, Institut National de la Santé et de la Recherche Medicale (INSERM), CHU Lille, UMR-S 1172 JPArc, Lille, France.,LabEx DISTALZ (Development of Innovative Strategies for a Transdisciplinary approach to ALZheimer's disease), Lille, France
| | - David Blum
- Université de Lille, Institut National de la Santé et de la Recherche Medicale (INSERM), CHU Lille, UMR-S 1172 JPArc, Lille, France .,LabEx DISTALZ (Development of Innovative Strategies for a Transdisciplinary approach to ALZheimer's disease), Lille, France
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