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Aldrich JC, Scheinfeld AR, Lee SE, Dusenbery KJ, Mahach KM, Van de Veire BC, Fonken LK, Gaudet AD. Effects of dim light at night in C57BL/6 J mice on recovery after spinal cord injury. Exp Neurol 2024; 375:114725. [PMID: 38365132 PMCID: PMC10981559 DOI: 10.1016/j.expneurol.2024.114725] [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: 09/15/2023] [Revised: 01/09/2024] [Accepted: 02/12/2024] [Indexed: 02/18/2024]
Abstract
Spinal cord injury (SCI) can cause long-lasting locomotor deficits, pain, and mood disorders. Anatomical and functional outcomes are exacerbated by inflammation after SCI, which causes secondary damage. One promising target after SCI is manipulating the circadian system, which optimizes biology and behavior for time of day - including neuroimmune responses and mood-related behaviors. Circadian disruption after SCI is likely worsened by a disruptive hospital environment, which typically includes dim light-at-night (dLAN). Here, we hypothesized that mice subjected to SCI, then placed in dLAN, would exhibit worsened locomotor deficits, pain-like behavior, and anxiety-depressive-like symptoms compared to mice maintained in light days with dark nights (LD). C57BL/6 J mice received sham surgery or moderate T9 contusion SCI, then were placed permanently in LD or dLAN. dLAN after SCI did not worsen locomotor deficits; rather, SCI-dLAN mice showed slight improvement in open-field locomotion at the final timepoint. Although dLAN did not alter SCI-induced heat hyperalgesia, SCI-dLAN mice exhibited an increase in mechanical allodynia at 13 days post-SCI compared to SCI-LD mice. SCI-LD and SCI-dLAN mice had similar outcomes using sucrose preference (depressive-like) and open-field (anxiety-like) tests. At 21 dpo, SCI-dLAN mice had reduced preference for a novel juvenile compared to SCI-LD, implying that dLAN combined with SCI may worsen this mood-related behavior. Finally, lesion size was similar between SCI-LD and SCI-dLAN mice. Therefore, newly placing C57BL/6 J mice in dLAN after SCI had modest effects on locomotor, pain-like, and mood-related behaviors. Future studies should consider whether clinically-relevant circadian disruptors, alone or in combination, could be ameliorated to enhance outcomes after SCI.
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Affiliation(s)
- John C Aldrich
- Department of Psychology, College of Liberal Arts, The University of Texas at Austin, USA; Department of Neurology, Dell Medical School, The University of Texas at Austin
| | - Ashley R Scheinfeld
- Department of Psychology, College of Liberal Arts, The University of Texas at Austin, USA; Department of Neurology, Dell Medical School, The University of Texas at Austin
| | - Sydney E Lee
- Department of Psychology, College of Liberal Arts, The University of Texas at Austin, USA; Department of Neurology, Dell Medical School, The University of Texas at Austin
| | - Kalina J Dusenbery
- Department of Psychology, College of Liberal Arts, The University of Texas at Austin, USA; Department of Neurology, Dell Medical School, The University of Texas at Austin
| | - Kathryn M Mahach
- Department of Psychology, College of Liberal Arts, The University of Texas at Austin, USA; Department of Neurology, Dell Medical School, The University of Texas at Austin
| | - Brigid C Van de Veire
- Department of Psychology, College of Liberal Arts, The University of Texas at Austin, USA; Department of Neurology, Dell Medical School, The University of Texas at Austin
| | - Laura K Fonken
- Division of Pharmacology and Toxicology, College of Pharmacy, The University of Texas at Austin
| | - Andrew D Gaudet
- Department of Psychology, College of Liberal Arts, The University of Texas at Austin, USA; Department of Neurology, Dell Medical School, The University of Texas at Austin.
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Aldrich JC, Scheinfeld AR, Lee SE, Dusenbery KJ, Mahach KM, Van de Veire BC, Fonken LK, Gaudet AD. Effects of dim light at night in C57BL/6J mice on recovery after spinal cord injury. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.09.15.557980. [PMID: 37745393 PMCID: PMC10516041 DOI: 10.1101/2023.09.15.557980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/26/2023]
Abstract
Spinal cord injury (SCI) can cause long-lasting locomotor deficits, pain, and mood disorders. Anatomical and functional outcomes are exacerbated by inflammation after SCI, which causes secondary damage. One promising target after SCI is manipulating the circadian system, which optimizes biology and behavior for time of day - including neuroimmune responses and mood-related behaviors. Circadian disruption after SCI is likely worsened by a disruptive hospital environment, which typically includes dim light-at-night (dLAN). Here, we hypothesized that mice subjected to SCI, then placed in dLAN, would exhibit worsened locomotor deficits, pain-like behavior, and anxiety-depressive-like symptoms compared to mice maintained in light days with dark nights (LD). C57BL/6J mice received sham surgery or moderate T9 contusion SCI, then were placed permanently in LD or dLAN. dLAN after SCI did not worsen locomotor deficits; rather, SCI-dLAN mice showed slight improvement in open-field locomotion at the final timepoint. Although dLAN did not alter SCI-induced heat hyperalgesia, SCI-dLAN mice exhibited an increase in mechanical allodynia at 13 days post-SCI compared to SCI-LD mice. SCI-LD and SCI-dLAN mice had similar outcomes using sucrose preference (depressive-like) and open-field (anxiety-like) tests. At 21 dpo, SCI-dLAN mice had reduced preference for a novel juvenile compared to SCI-LD, implying that dLAN combined with SCI may worsen this mood-related behavior. Finally, lesion size was similar between SCI-LD and SCI-dLAN mice. Therefore, newly placing C57BL/6J mice in dLAN after SCI had modest effects on locomotor, pain-like, and mood-related behaviors. Future studies should consider whether clinically-relevant circadian disruptors, alone or in combination, could be ameliorated to enhance outcomes after SCI.
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Affiliation(s)
- John C Aldrich
- Department of Psychology, College of Liberal Arts, The University of Texas at Austin
- Department of Neurology, Dell Medical School, The University of Texas at Austin
| | - Ashley R Scheinfeld
- Department of Psychology, College of Liberal Arts, The University of Texas at Austin
- Department of Neurology, Dell Medical School, The University of Texas at Austin
| | - Sydney E Lee
- Department of Psychology, College of Liberal Arts, The University of Texas at Austin
- Department of Neurology, Dell Medical School, The University of Texas at Austin
| | - Kalina J Dusenbery
- Department of Psychology, College of Liberal Arts, The University of Texas at Austin
- Department of Neurology, Dell Medical School, The University of Texas at Austin
| | - Kathryn M Mahach
- Department of Psychology, College of Liberal Arts, The University of Texas at Austin
- Department of Neurology, Dell Medical School, The University of Texas at Austin
| | - Brigid C Van de Veire
- Department of Psychology, College of Liberal Arts, The University of Texas at Austin
- Department of Neurology, Dell Medical School, The University of Texas at Austin
| | - Laura K Fonken
- Division of Pharmacology and Toxicology, College of Pharmacy, The University of Texas at Austin
| | - Andrew D Gaudet
- Department of Psychology, College of Liberal Arts, The University of Texas at Austin
- Department of Neurology, Dell Medical School, The University of Texas at Austin
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De Virgiliis F, Mueller F, Palmisano I, Chadwick JS, Luengo-Gutierrez L, Giarrizzo A, Yan Y, Danzi MC, Picon-Muñoz C, Zhou L, Kong G, Serger E, Hutson TH, Maldonado-Lasuncion I, Song Y, Scheiermann C, Brancaccio M, Di Giovanni S. The circadian clock time tunes axonal regeneration. Cell Metab 2023; 35:2153-2164.e4. [PMID: 37951214 DOI: 10.1016/j.cmet.2023.10.012] [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: 09/22/2022] [Revised: 08/18/2023] [Accepted: 10/16/2023] [Indexed: 11/13/2023]
Abstract
Nerve injuries cause permanent neurological disability due to limited axonal regeneration. Injury-dependent and -independent mechanisms have provided important insight into neuronal regeneration, however, common denominators underpinning regeneration remain elusive. A comparative analysis of transcriptomic datasets associated with neuronal regenerative ability revealed circadian rhythms as the most significantly enriched pathway. Subsequently, we demonstrated that sensory neurons possess an endogenous clock and that their regenerative ability displays diurnal oscillations in a murine model of sciatic nerve injury. Consistently, transcriptomic analysis showed a time-of-day-dependent enrichment for processes associated with axonal regeneration and the circadian clock. Conditional deletion experiments demonstrated that Bmal1 is required for neuronal intrinsic circadian regeneration and target re-innervation. Lastly, lithium enhanced nerve regeneration in wild-type but not in clock-deficient mice. Together, these findings demonstrate that the molecular clock fine-tunes the regenerative ability of sensory neurons and propose compounds affecting clock pathways as a novel approach to nerve repair.
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Affiliation(s)
- Francesco De Virgiliis
- Division of Neuroscience, Department of Brain Sciences, Imperial College London, London W120NN, UK; Department of Pathology and Immunology, University of Geneva, Geneva 1211, Switzerland.
| | - Franziska Mueller
- Division of Neuroscience, Department of Brain Sciences, Imperial College London, London W120NN, UK
| | - Ilaria Palmisano
- Division of Neuroscience, Department of Brain Sciences, Imperial College London, London W120NN, UK; Department of Neuroscience, Ohio State College of Medicine, Columbus, OH 43210, USA
| | - Jessica Sarah Chadwick
- Division of Neuroscience, Department of Brain Sciences, Imperial College London, London W120NN, UK
| | - Lucia Luengo-Gutierrez
- Division of Neuroscience, Department of Brain Sciences, Imperial College London, London W120NN, UK
| | - Angela Giarrizzo
- Division of Neuroscience, Department of Brain Sciences, Imperial College London, London W120NN, UK
| | - Yuyang Yan
- Division of Neuroscience, Department of Brain Sciences, Imperial College London, London W120NN, UK
| | - Matt Christopher Danzi
- Department of Human Genetics and Hussman Institute for Human Genomics, University of Miami, Miami, FL 33136, USA
| | - Carmen Picon-Muñoz
- Department of Pathology and Immunology, University of Geneva, Geneva 1211, Switzerland
| | - Luming Zhou
- Division of Neuroscience, Department of Brain Sciences, Imperial College London, London W120NN, UK
| | - Guiping Kong
- Division of Neuroscience, Department of Brain Sciences, Imperial College London, London W120NN, UK
| | - Elisabeth Serger
- Division of Neuroscience, Department of Brain Sciences, Imperial College London, London W120NN, UK
| | - Thomas Haynes Hutson
- Defitech Center for Interventional Neurotherapies (NeuroRestore), EPFL/CHUV/UNIL, Lausanne 1015, Switzerland
| | - Ines Maldonado-Lasuncion
- Division of Neuroscience, Department of Brain Sciences, Imperial College London, London W120NN, UK
| | - Yayue Song
- Division of Neuroscience, Department of Brain Sciences, Imperial College London, London W120NN, UK
| | - Christoph Scheiermann
- Department of Pathology and Immunology, University of Geneva, Geneva 1211, Switzerland
| | - Marco Brancaccio
- Division of Neuroscience, Department of Brain Sciences, Imperial College London, London W120NN, UK; UK Dementia Research Institute at Imperial College London, London W120NN, UK.
| | - Simone Di Giovanni
- Division of Neuroscience, Department of Brain Sciences, Imperial College London, London W120NN, UK.
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Hetman M, Slomnicki L, Hodges E, Ohri SS, Whittemore SR. Role of circadian rhythms in pathogenesis of acute CNS injuries: Insights from experimental studies. Exp Neurol 2022; 353:114080. [DOI: 10.1016/j.expneurol.2022.114080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 03/28/2022] [Accepted: 04/05/2022] [Indexed: 11/16/2022]
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