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Verma AK, Khan MI, Ashfaq F, Rizvi SI. Crosstalk Between Aging, Circadian Rhythm, and Melatonin. Rejuvenation Res 2023; 26:229-241. [PMID: 37847148 DOI: 10.1089/rej.2023.0047] [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] [Indexed: 10/18/2023] Open
Abstract
Circadian rhythms (CRs) are 24-hour periodic oscillations governed by an endogenous circadian pacemaker located in the suprachiasmatic nucleus (SCN), which organizes the physiology and behavior of organisms. Circadian rhythm disruption (CRD) is also indicative of the aging process. In mammals, melatonin is primarily synthesized in the pineal gland and participates in a variety of multifaceted intracellular signaling networks and has been shown to synchronize CRs. Endogenous melatonin synthesis and its release tend to decrease progressively with advancing age. Older individuals experience frequent CR disruption, which hastens the process of aging. A profound understanding of the relationship between CRs and aging has the potential to improve existing treatments and facilitate development of novel chronotherapies that target age-related disorders. This review article aims to examine the circadian regulatory mechanisms in which melatonin plays a key role in signaling. We describe the basic architecture of the molecular circadian clock and its functional decline with age in detail. Furthermore, we discuss the role of melatonin in regulation of the circadian pacemaker and redox homeostasis during aging. Moreover, we also discuss the protective effect of exogenous melatonin supplementation in age-dependent CR disruption, which sheds light on this pleiotropic molecule and how it can be used as an effective chronotherapeutic medicine.
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Affiliation(s)
| | - Mohammad Idreesh Khan
- Department of Clinical Nutrition, College of Applied Health Sciences in Ar Rass, Qassim University, Ar Rass, Saudi Arabia
| | - Fauzia Ashfaq
- Clinical Nutrition Department, Applied Medical Sciences College, Jazan University, Jazan, Saudi Arabia
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2
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Boyd HM, Frick KM, Kwapis JL. Connecting the Dots: Potential Interactions Between Sex Hormones and the Circadian System During Memory Consolidation. J Biol Rhythms 2023; 38:537-555. [PMID: 37464775 PMCID: PMC10615791 DOI: 10.1177/07487304231184761] [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] [Indexed: 07/20/2023]
Abstract
Both the circadian clock and sex hormone signaling can strongly influence brain function, yet little is known about how these 2 powerful modulatory systems might interact during complex neural processes like memory consolidation. Individually, the molecular components and action of each of these systems have been fairly well-characterized, but there is a fundamental lack of information about how these systems cooperate. In the circadian system, clock genes function as timekeeping molecules that convey time-of-day information on a well-stereotyped cycle that is governed by the suprachiasmatic nucleus. Keeping time is particularly important to synchronize various physiological processes across the brain and body, including those that regulate memory consolidation. Similarly, sex hormones are powerful modulators of memory, with androgens, estrogens, and progestins, all influencing memory consolidation within memory-relevant brain regions like the hippocampus. Despite clear evidence that each system can influence memory individually, exactly how the circadian and hormonal systems might interact to impact memory consolidation remains unclear. Research investigating either sex hormone action or circadian gene function within memory-relevant brain regions has unveiled several notable places in which the two systems could interact to control memory. Here, we bring attention to known interactions between the circadian clock and sex hormone signaling. We then review sex hormone-mediated control of memory consolidation, highlighting potential nodes through which the circadian system might interact during memory formation. We suggest that the bidirectional relationship between these two systems is essential for proper control of memory formation based on an animal's hormonal and circadian state.
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Affiliation(s)
- Hannah M. Boyd
- Department of Biology, The Pennsylvania State University, University Park, Pennsylvania
- Center for Eukaryotic Gene Regulation, The Pennsylvania State University, University Park, Pennsylvania
| | - Karyn M. Frick
- Department of Psychology, University of Wisconsin–Milwaukee, Milwaukee, Wisconsin
| | - Janine L. Kwapis
- Department of Biology, The Pennsylvania State University, University Park, Pennsylvania
- Center for Eukaryotic Gene Regulation, The Pennsylvania State University, University Park, Pennsylvania
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3
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Barone I, Gilette NM, Hawks-Mayer H, Handy J, Zhang KJ, Chifamba FF, Mostafa E, Johnson-Venkatesh EM, Sun Y, Gibson JM, Rotenberg A, Umemori H, Tsai PT, Lipton JO. Synaptic BMAL1 phosphorylation controls circadian hippocampal plasticity. SCIENCE ADVANCES 2023; 9:eadj1010. [PMID: 37878694 PMCID: PMC10599629 DOI: 10.1126/sciadv.adj1010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 09/25/2023] [Indexed: 10/27/2023]
Abstract
The time of day strongly influences adaptive behaviors like long-term memory, but the correlating synaptic and molecular mechanisms remain unclear. The circadian clock comprises a canonical transcription-translation feedback loop (TTFL) strictly dependent on the BMAL1 transcription factor. We report that BMAL1 rhythmically localizes to hippocampal synapses in a manner dependent on its phosphorylation at Ser42 [pBMAL1(S42)]. pBMAL1(S42) regulates the autophosphorylation of synaptic CaMKIIα and circadian rhythms of CaMKIIα-dependent molecular interactions and LTP but not global rest/activity behavior. Therefore, our results suggest a model in which repurposing of the clock protein BMAL1 to synapses locally gates the circadian timing of plasticity.
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Affiliation(s)
- Ilaria Barone
- Department of Neurology and F.M. Kirby Center for Neurobiology, Boston Children’s Hospital, Boston, MA 02115, USA
| | - Nicole M. Gilette
- Department of Neurology and F.M. Kirby Center for Neurobiology, Boston Children’s Hospital, Boston, MA 02115, USA
| | - Hannah Hawks-Mayer
- Department of Neurology and F.M. Kirby Center for Neurobiology, Boston Children’s Hospital, Boston, MA 02115, USA
| | - Jonathan Handy
- Department of Neurology and F.M. Kirby Center for Neurobiology, Boston Children’s Hospital, Boston, MA 02115, USA
| | - Kevin J. Zhang
- Department of Neurology and F.M. Kirby Center for Neurobiology, Boston Children’s Hospital, Boston, MA 02115, USA
| | - Fortunate F. Chifamba
- Department of Neurology and F.M. Kirby Center for Neurobiology, Boston Children’s Hospital, Boston, MA 02115, USA
| | - Engie Mostafa
- Department of Neurology and F.M. Kirby Center for Neurobiology, Boston Children’s Hospital, Boston, MA 02115, USA
| | - Erin M. Johnson-Venkatesh
- Department of Neurology and F.M. Kirby Center for Neurobiology, Boston Children’s Hospital, Boston, MA 02115, USA
| | - Yan Sun
- Department of Neurology and F.M. Kirby Center for Neurobiology, Boston Children’s Hospital, Boston, MA 02115, USA
| | - Jennifer M. Gibson
- Departments of Neurology, Neuroscience, Pediatrics, and Psychiatry, University of Texas at Southwestern, Dallas, TX 75390, USA
| | - Alexander Rotenberg
- Department of Neurology and F.M. Kirby Center for Neurobiology, Boston Children’s Hospital, Boston, MA 02115, USA
| | - Hisashi Umemori
- Department of Neurology and F.M. Kirby Center for Neurobiology, Boston Children’s Hospital, Boston, MA 02115, USA
| | - Peter T. Tsai
- Departments of Neurology, Neuroscience, Pediatrics, and Psychiatry, University of Texas at Southwestern, Dallas, TX 75390, USA
| | - Jonathan O. Lipton
- Department of Neurology and F.M. Kirby Center for Neurobiology, Boston Children’s Hospital, Boston, MA 02115, USA
- Department of Neurology and Division of Sleep Medicine, Harvard Medical School, Boston, MA 02115, USA
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4
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Lee J, Chen S, Monfared RV, Derdeyn P, Leong K, Chang T, Beier K, Baldi P, Alachkar A. Reanalysis of primate brain circadian transcriptomics reveals connectivity-related oscillations. iScience 2023; 26:107810. [PMID: 37752952 PMCID: PMC10518731 DOI: 10.1016/j.isci.2023.107810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 07/22/2023] [Accepted: 08/30/2023] [Indexed: 09/28/2023] Open
Abstract
Research shows that brain circuits controlling vital physiological processes are closely linked with endogenous time-keeping systems. In this study, we aimed to examine oscillatory gene expression patterns of well-characterized neuronal circuits by reanalyzing publicly available transcriptomic data from a spatiotemporal gene expression atlas of a non-human primate. Unexpectedly, brain structures known for regulating circadian processes (e.g., hypothalamic nuclei) did not exhibit robust cycling expression. In contrast, basal ganglia nuclei, not typically associated with circadian physiology, displayed the most dynamic cycling behavior of its genes marked by sharp temporally defined expression peaks. Intriguingly, the mammillary bodies, considered hypothalamic nuclei, exhibited gene expression patterns resembling the basal ganglia, prompting reevaluation of their classification. Our results emphasize the potential for high throughput circadian gene expression analysis to deepen our understanding of the functional synchronization across brain structures that influence physiological processes and resulting complex behaviors.
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Affiliation(s)
- Justine Lee
- Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, University of California, Irvine, Irvine, CA, USA
| | - Siwei Chen
- Department of Computer Science, School of Information and Computer Sciences, University of California, Irvine, Irvine, CA, USA
| | - Roudabeh Vakil Monfared
- Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, University of California, Irvine, Irvine, CA, USA
| | - Pieter Derdeyn
- Mathematical, Computational, and Systems Biology Program, University of California, Irvine, Irvine, CA, USA
| | - Kenneth Leong
- Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, University of California, Irvine, Irvine, CA, USA
| | - Tiffany Chang
- Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, University of California, Irvine, Irvine, CA, USA
| | - Kevin Beier
- Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, University of California, Irvine, Irvine, CA, USA
- Department of Physiology and Biophysics, School of medicine, University of California, Irvine, Irvine, CA, USA
- Department of Neurobiology and Behavior, University of California, Irvine, Irvine, CA 92697-4560, USA
- Department of Biomedical Engineering, University of California, Irvine, Irvine, CA 92697-4560, USA
- Center for the Neurobiology of Learning and Memory, University of California, Irvine, Irvine, CA 92697, USA
| | - Pierre Baldi
- Department of Computer Science, School of Information and Computer Sciences, University of California, Irvine, Irvine, CA, USA
- Center for the Neurobiology of Learning and Memory, University of California, Irvine, Irvine, CA 92697, USA
- Institute for Genomics and Bioinformatics, University of California, Irvine, Irvine, CA, USA
| | - Amal Alachkar
- Department of Pharmaceutical Sciences, School of Pharmacy and Pharmaceutical Sciences, University of California, Irvine, Irvine, CA, USA
- Center for the Neurobiology of Learning and Memory, University of California, Irvine, Irvine, CA 92697, USA
- Institute for Genomics and Bioinformatics, University of California, Irvine, Irvine, CA, USA
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5
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Liu D, Nanclares C, Simbriger K, Fang K, Lorsung E, Le N, Amorim IS, Chalkiadaki K, Pathak SS, Li J, Gewirtz JC, Jin VX, Kofuji P, Araque A, Orr HT, Gkogkas CG, Cao R. Autistic-like behavior and cerebellar dysfunction in Bmal1 mutant mice ameliorated by mTORC1 inhibition. Mol Psychiatry 2023; 28:3727-3738. [PMID: 35301425 PMCID: PMC9481983 DOI: 10.1038/s41380-022-01499-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 02/14/2022] [Accepted: 02/22/2022] [Indexed: 12/16/2022]
Abstract
Although circadian and sleep disorders are frequently associated with autism spectrum disorders (ASD), it remains elusive whether clock gene disruption can lead to autistic-like phenotypes in animals. The essential clock gene Bmal1 has been associated with human sociability and its missense mutations are identified in ASD. Here we report that global Bmal1 deletion led to significant social impairments, excessive stereotyped and repetitive behaviors, as well as motor learning disabilities in mice, all of which resemble core behavioral deficits in ASD. Furthermore, aberrant cell density and immature morphology of dendritic spines were identified in the cerebellar Purkinje cells (PCs) of Bmal1 knockout (KO) mice. Electrophysiological recordings uncovered enhanced excitatory and inhibitory synaptic transmission and reduced firing rates in the PCs of Bmal1 KO mice. Differential expression of ASD- and ataxia-associated genes (Ntng2, Mfrp, Nr4a2, Thbs1, Atxn1, and Atxn3) and dysregulated pathways of translational control, including hyperactivated mammalian target of rapamycin complex 1 (mTORC1) signaling, were identified in the cerebellum of Bmal1 KO mice. Interestingly, the antidiabetic drug metformin reversed mTORC1 hyperactivation and alleviated major behavioral and PC deficits in Bmal1 KO mice. Importantly, conditional Bmal1 deletion only in cerebellar PCs was sufficient to recapitulate autistic-like behavioral and cellular changes akin to those identified in Bmal1 KO mice. Together, these results unveil a previously unidentified role for Bmal1 disruption in cerebellar dysfunction and autistic-like behaviors. Our findings provide experimental evidence supporting a putative role for dysregulation of circadian clock gene expression in the pathogenesis of ASD.
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Affiliation(s)
- Dong Liu
- Department of Biomedical Sciences, University of Minnesota Medical School, Duluth, MN, 55812, USA
| | - Carmen Nanclares
- Department of Neuroscience, University of Minnesota Medical School, Minneapolis, MN, 55455, USA
| | - Konstanze Simbriger
- Patrick Wild Centre, University of Edinburgh, Edinburgh, EH8 9XD, UK
- Simons Initiative for the Developing Brain, University of Edinburgh, Edinburgh, EH8 9XD, UK
- Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh, EH8 9XD, UK
| | - Kun Fang
- Department of Molecular Medicine, The University of Texas Health San Antonio, San Antonio, TX, 78229, USA
| | - Ethan Lorsung
- Department of Biomedical Sciences, University of Minnesota Medical School, Duluth, MN, 55812, USA
| | - Nam Le
- Department of Biomedical Sciences, University of Minnesota Medical School, Duluth, MN, 55812, USA
| | - Inês Silva Amorim
- Patrick Wild Centre, University of Edinburgh, Edinburgh, EH8 9XD, UK
- Simons Initiative for the Developing Brain, University of Edinburgh, Edinburgh, EH8 9XD, UK
- Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh, EH8 9XD, UK
| | - Kleanthi Chalkiadaki
- Patrick Wild Centre, University of Edinburgh, Edinburgh, EH8 9XD, UK
- Simons Initiative for the Developing Brain, University of Edinburgh, Edinburgh, EH8 9XD, UK
- Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh, EH8 9XD, UK
| | - Salil Saurav Pathak
- Department of Biomedical Sciences, University of Minnesota Medical School, Duluth, MN, 55812, USA
| | - Jin Li
- Department of Biomedical Sciences, University of Minnesota Medical School, Duluth, MN, 55812, USA
| | - Jonathan C Gewirtz
- Department of Neuroscience, University of Minnesota Medical School, Minneapolis, MN, 55455, USA
- Department of Psychology, University of Minnesota, Minneapolis, MN, 55455, USA
- Department of Psychology, Arizona State University, Tempe, AZ, 85287, USA
| | - Victor X Jin
- Department of Molecular Medicine, The University of Texas Health San Antonio, San Antonio, TX, 78229, USA
| | - Paulo Kofuji
- Department of Neuroscience, University of Minnesota Medical School, Minneapolis, MN, 55455, USA
| | - Alfonso Araque
- Department of Neuroscience, University of Minnesota Medical School, Minneapolis, MN, 55455, USA
| | - Harry T Orr
- Institute for Translational Neuroscience, University of Minnesota, Minneapolis, MN, USA
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN, USA
| | - Christos G Gkogkas
- Patrick Wild Centre, University of Edinburgh, Edinburgh, EH8 9XD, UK.
- Simons Initiative for the Developing Brain, University of Edinburgh, Edinburgh, EH8 9XD, UK.
- Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh, EH8 9XD, UK.
- Biomedical Research Institute, Foundation for Research and Technology-Hellas, University Campus, 45110, Ioannina, Greece.
| | - Ruifeng Cao
- Department of Biomedical Sciences, University of Minnesota Medical School, Duluth, MN, 55812, USA.
- Department of Neuroscience, University of Minnesota Medical School, Minneapolis, MN, 55455, USA.
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6
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Chen P, Ban W, Wang W, You Y, Yang Z. The Devastating Effects of Sleep Deprivation on Memory: Lessons from Rodent Models. Clocks Sleep 2023; 5:276-294. [PMID: 37218868 DOI: 10.3390/clockssleep5020022] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 05/11/2023] [Accepted: 05/11/2023] [Indexed: 05/24/2023] Open
Abstract
In this narrative review article, we discuss the role of sleep deprivation (SD) in memory processing in rodent models. Numerous studies have examined the effects of SD on memory, with the majority showing that sleep disorders negatively affect memory. Currently, a consensus has not been established on which damage mechanism is the most appropriate. This critical issue in the neuroscience of sleep remains largely unknown. This review article aims to elucidate the mechanisms that underlie the damaging effects of SD on memory. It also proposes a scientific solution that might explain some findings. We have chosen to summarize literature that is both representative and comprehensive, as well as innovative in its approach. We examined the effects of SD on memory, including synaptic plasticity, neuritis, oxidative stress, and neurotransmitters. Results provide valuable insights into the mechanisms by which SD impairs memory function.
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Affiliation(s)
- Pinqiu Chen
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China
- Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, School of Pharmacy, Yantai University, Yantai 264005, China
| | - Weikang Ban
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China
| | - Wenyan Wang
- Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, School of Pharmacy, Yantai University, Yantai 264005, China
| | - Yuyang You
- School of Automation, Beijing Institute of Technology, Beijing 100081, China
| | - Zhihong Yang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China
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7
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Barrio-Alonso E, Lituma PJ, Notaras MJ, Albero R, Bouchekioua Y, Wayland N, Stankovic IN, Jain T, Gao S, Calderon DP, Castillo PE, Colak D. Circadian protein TIMELESS regulates synaptic function and memory by modulating cAMP signaling. Cell Rep 2023; 42:112375. [PMID: 37043347 PMCID: PMC10564971 DOI: 10.1016/j.celrep.2023.112375] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 03/07/2023] [Accepted: 03/24/2023] [Indexed: 04/13/2023] Open
Abstract
The regulation of neurons by circadian clock genes is thought to contribute to the maintenance of neuronal functions that ultimately underlie animal behavior. However, the impact of specific circadian genes on cellular and molecular mechanisms controlling synaptic plasticity and cognitive function remains elusive. Here, we show that the expression of the circadian protein TIMELESS displays circadian rhythmicity in the mammalian hippocampus. We identify TIMELESS as a chromatin-bound protein that targets synaptic-plasticity-related genes such as phosphodiesterase 4B (Pde4b). By promoting Pde4b transcription, TIMELESS negatively regulates cAMP signaling to modulate AMPA receptor GluA1 function and influence synaptic plasticity. Conditional deletion of Timeless in the adult forebrain impairs working and contextual fear memory in mice. These cognitive phenotypes were accompanied by attenuation of hippocampal Schaffer-collateral synapse long-term potentiation. Together, these data establish a neuron-specific function of mammalian TIMELESS by defining a mechanism that regulates synaptic plasticity and cognitive function.
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Affiliation(s)
- Estibaliz Barrio-Alonso
- Center for Neurogenetics, Feil Family Brain and Mind Research Institute, Weill Cornell Medical College, Cornell University, New York, NY, USA
| | - Pablo J Lituma
- Center for Neurogenetics, Feil Family Brain and Mind Research Institute, Weill Cornell Medical College, Cornell University, New York, NY, USA
| | - Michael J Notaras
- Center for Neurogenetics, Feil Family Brain and Mind Research Institute, Weill Cornell Medical College, Cornell University, New York, NY, USA
| | - Robert Albero
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Youcef Bouchekioua
- Department of Anesthesiology, Weill Cornell Medical College, New York, NY, USA
| | - Natalie Wayland
- Center for Neurogenetics, Feil Family Brain and Mind Research Institute, Weill Cornell Medical College, Cornell University, New York, NY, USA
| | - Isidora N Stankovic
- Center for Neurogenetics, Feil Family Brain and Mind Research Institute, Weill Cornell Medical College, Cornell University, New York, NY, USA
| | - Tanya Jain
- Program of Neurosciences, Weill Graduate School of Medical Sciences of Cornell University, New York, NY, USA
| | - Sijia Gao
- Department of Anesthesiology, Weill Cornell Medical College, New York, NY, USA
| | | | - Pablo E Castillo
- Dominick P. Purpura Department of Neuroscience, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Dilek Colak
- Center for Neurogenetics, Feil Family Brain and Mind Research Institute, Weill Cornell Medical College, Cornell University, New York, NY, USA; Gale & Ira Drukier Institute for Children's Health, Weill Cornell Medical College, Cornell University, New York, NY, USA.
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8
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Amidfar M, Garcez ML, Kim YK. The shared molecular mechanisms underlying aging of the brain, major depressive disorder, and Alzheimer's disease: The role of circadian rhythm disturbances. Prog Neuropsychopharmacol Biol Psychiatry 2023; 123:110721. [PMID: 36702452 DOI: 10.1016/j.pnpbp.2023.110721] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 01/07/2023] [Accepted: 01/19/2023] [Indexed: 01/24/2023]
Abstract
An association with circadian clock function and pathophysiology of aging, major depressive disorder (MDD), and Alzheimer's disease (AD) is well established and has been proposed as a factor in the development of these diseases. Depression and changes in circadian rhythm have been increasingly suggested as the two primary overlapping and interpenetrating changes that occur with aging. The relationship between AD and depression in late life is not completely understood and probably is complex. Patients with major depression or AD suffer from disturbed sleep/wake cycles and altered rhythms in daily activities. Although classical monoaminergic hypotheses are traditionally proposed to explain the pathophysiology of MDD, several clinical and preclinical studies have reported a strong association between circadian rhythm and mood regulation. In addition, a large body of evidence supports an association between disruption of circadian rhythm and AD. Some clock genes are dysregulated in rodent models of depression. If aging, AD, and MDD share a common biological basis in pathophysiology, common therapeutic tools could be investigated for their prevention and treatment. Nitro-oxidative stress (NOS), for example, plays a fundamental role in aging, as well as in the pathogenesis of AD and MDD and is associated with circadian clock disturbances. Thus, development of therapeutic possibilities with these NOS-related conditions is advisable. This review describes recent findings that link disrupted circadian clocks to aging, MDD, and AD and summarizes the experimental evidence that supports connections between the circadian clock and molecular pathologic factors as shared common pathophysiological mechanisms underlying aging, AD, and MDD.
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Affiliation(s)
- Meysam Amidfar
- Department of Neuroscience, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Michelle Lima Garcez
- Laboratory of Translational Neuroscience, Department of Biochemistry, Federal University of Santa Catarina (UFSC), Florianópolis, Santa Catarina, Brazil
| | - Yong-Ku Kim
- Department of Psychiatry, College of Medicine, Korea University, Seoul, South Korea.
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9
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Birnie M, Claydon M, Troy O, Flynn B, Yoshimura M, Kershaw Y, Zhao Z, Demski-Allen R, Barker G, Warburton E, Bortolotto Z, Lightman S, Conway-Campbell B. Circadian regulation of hippocampal function is disrupted with corticosteroid treatment. Proc Natl Acad Sci U S A 2023; 120:e2211996120. [PMID: 37023133 PMCID: PMC10104554 DOI: 10.1073/pnas.2211996120] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 02/24/2023] [Indexed: 04/07/2023] Open
Abstract
Disrupted circadian activity is associated with many neuropsychiatric disorders. A major coordinator of circadian biological systems is adrenal glucocorticoid secretion which exhibits a pronounced preawakening peak that regulates metabolic, immune, and cardiovascular processes, as well as mood and cognitive function. Loss of this circadian rhythm during corticosteroid therapy is often associated with memory impairment. Surprisingly, the mechanisms that underlie this deficit are not understood. In this study, in rats, we report that circadian regulation of the hippocampal transcriptome integrates crucial functional networks that link corticosteroid-inducible gene regulation to synaptic plasticity processes via an intrahippocampal circadian transcriptional clock. Further, these circadian hippocampal functions were significantly impacted by corticosteroid treatment delivered in a 5-d oral dosing treatment protocol. Rhythmic expression of the hippocampal transcriptome, as well as the circadian regulation of synaptic plasticity, was misaligned with the natural light/dark circadian-entraining cues, resulting in memory impairment in hippocampal-dependent behavior. These findings provide mechanistic insights into how the transcriptional clock machinery within the hippocampus is influenced by corticosteroid exposure, leading to adverse effects on critical hippocampal functions, as well as identifying a molecular basis for memory deficits in patients treated with long-acting synthetic corticosteroids.
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Affiliation(s)
- Matthew T. Birnie
- Henry Wellcome Laboratories for Integrative Neuroscience and Endocrinology, Translational Health Sciences, Faculty of Health Sciences, School of Medicine, University of Bristol, BristolBS1 3NY, United Kingdom
| | - Matthew D. B. Claydon
- Henry Wellcome Laboratories for Integrative Neuroscience and Endocrinology, Translational Health Sciences, Faculty of Health Sciences, School of Medicine, University of Bristol, BristolBS1 3NY, United Kingdom
- School of Physiology, Pharmacology and Neuroscience, Faculty of Life Sciences, University of Bristol, BristolBS8 1TD, United Kingdom
| | - Oliver Troy
- Henry Wellcome Laboratories for Integrative Neuroscience and Endocrinology, Translational Health Sciences, Faculty of Health Sciences, School of Medicine, University of Bristol, BristolBS1 3NY, United Kingdom
| | - Benjamin P. Flynn
- Henry Wellcome Laboratories for Integrative Neuroscience and Endocrinology, Translational Health Sciences, Faculty of Health Sciences, School of Medicine, University of Bristol, BristolBS1 3NY, United Kingdom
| | - Mitsuhiro Yoshimura
- Henry Wellcome Laboratories for Integrative Neuroscience and Endocrinology, Translational Health Sciences, Faculty of Health Sciences, School of Medicine, University of Bristol, BristolBS1 3NY, United Kingdom
| | - Yvonne M. Kershaw
- Henry Wellcome Laboratories for Integrative Neuroscience and Endocrinology, Translational Health Sciences, Faculty of Health Sciences, School of Medicine, University of Bristol, BristolBS1 3NY, United Kingdom
| | - Zidong Zhao
- Henry Wellcome Laboratories for Integrative Neuroscience and Endocrinology, Translational Health Sciences, Faculty of Health Sciences, School of Medicine, University of Bristol, BristolBS1 3NY, United Kingdom
| | - Rebecca C. R. Demski-Allen
- Henry Wellcome Laboratories for Integrative Neuroscience and Endocrinology, Translational Health Sciences, Faculty of Health Sciences, School of Medicine, University of Bristol, BristolBS1 3NY, United Kingdom
- School of Physiology, Pharmacology and Neuroscience, Faculty of Life Sciences, University of Bristol, BristolBS8 1TD, United Kingdom
| | - Gareth R. I. Barker
- School of Physiology, Pharmacology and Neuroscience, Faculty of Life Sciences, University of Bristol, BristolBS8 1TD, United Kingdom
| | - E. Clea Warburton
- School of Physiology, Pharmacology and Neuroscience, Faculty of Life Sciences, University of Bristol, BristolBS8 1TD, United Kingdom
| | - Zuner A. Bortolotto
- School of Physiology, Pharmacology and Neuroscience, Faculty of Life Sciences, University of Bristol, BristolBS8 1TD, United Kingdom
| | - Stafford L. Lightman
- Henry Wellcome Laboratories for Integrative Neuroscience and Endocrinology, Translational Health Sciences, Faculty of Health Sciences, School of Medicine, University of Bristol, BristolBS1 3NY, United Kingdom
| | - Becky L. Conway-Campbell
- Henry Wellcome Laboratories for Integrative Neuroscience and Endocrinology, Translational Health Sciences, Faculty of Health Sciences, School of Medicine, University of Bristol, BristolBS1 3NY, United Kingdom
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10
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Sleep-Related Changes Prior to Cognitive Dysfunction. Curr Neurol Neurosci Rep 2023; 23:177-183. [PMID: 36881255 DOI: 10.1007/s11910-023-01258-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/31/2023] [Indexed: 03/08/2023]
Abstract
PURPOSE OF REVIEW The aim of this review is to summarize the current evidence on the relationship between sleep and cognition and present available data reporting the impact that sleep alterations may have on cognitive functions. RECENT FINDINGS Research findings support the idea that sleep is involved in cognitive processes and that altered sleep homeostasis or circadian rhythms may lead to clinical and biochemical changes associated with cognitive impairment. Evidence is particularly solid for the association between specific sleep architecture and circadian alterations and Alzheimer's disease. Sleep changes, as early manifestations or possible risk factors for neurodegeneration and cognitive decline, may be appropriate targets for interventions aiming to reduce the likelihood of dementia.
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Liška K, Dočkal T, Houdek P, Sládek M, Lužná V, Semenovykh K, Drapšin M, Sumová A. Lithium affects the circadian clock in the choroid plexus - A new role for an old mechanism. Biomed Pharmacother 2023; 159:114292. [PMID: 36701987 DOI: 10.1016/j.biopha.2023.114292] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 01/10/2023] [Accepted: 01/20/2023] [Indexed: 01/27/2023] Open
Abstract
Lithium is an effective mood stabilizer, but the mechanism of its therapeutic action is not well understood. We investigated the effect of lithium on the circadian clock located in the ventricle barrier complex containing the choroid plexus (CP), a part of the glymphatic system that influences gross brain function via the production of cerebrospinal fluid. The mPer2Luc mice were injected with lithium chloride (LiCl) or vehicle, and their effects on the clock gene Nr1d1 in CP were detected by RT qPCR. CP organotypic explants were prepared to monitor bioluminescence rhythms in real time and examine the responses of the CP clock to LiCl and inhibitors of glycogen synthase kinase-3 (CHIR-99021) and protein kinase C (chelerythrine). LiCl affected Nr1d1 expression levels in CP in vivo and dose-dependently delayed the phase and prolonged the period of the CP clock in vitro. LiCl and CHIR-99021 had different effects on 1] CP clock parameters (amplitude, period, phase), 2] dexamethasone-induced phase shifts of the CP clock, and 3] dynamics of PER2 degradation and de novo accumulation. LiCl-induced phase delays were significantly reduced by chelerythrine, suggesting the involvement of PKC activity. The effects on the CP clock may be involved in the therapeutic effects of lithium and hypothetically improve brain function in psychiatric patients by aligning the function of the CP clock-related glymphatic system with the sleep-wake cycle. Importantly, our data argue for personalized timing of lithium treatment in BD patients.
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Affiliation(s)
- Karolína Liška
- Laboratory of Biological Rhythms, Institute of Physiology of the Czech Academy of Sciences, Prague, Czech Republic
| | - Tereza Dočkal
- Laboratory of Biological Rhythms, Institute of Physiology of the Czech Academy of Sciences, Prague, Czech Republic
| | - Pavel Houdek
- Laboratory of Biological Rhythms, Institute of Physiology of the Czech Academy of Sciences, Prague, Czech Republic
| | - Martin Sládek
- Laboratory of Biological Rhythms, Institute of Physiology of the Czech Academy of Sciences, Prague, Czech Republic
| | - Vendula Lužná
- Laboratory of Biological Rhythms, Institute of Physiology of the Czech Academy of Sciences, Prague, Czech Republic
| | - Kateryna Semenovykh
- Laboratory of Biological Rhythms, Institute of Physiology of the Czech Academy of Sciences, Prague, Czech Republic
| | - Milica Drapšin
- Laboratory of Biological Rhythms, Institute of Physiology of the Czech Academy of Sciences, Prague, Czech Republic
| | - Alena Sumová
- Laboratory of Biological Rhythms, Institute of Physiology of the Czech Academy of Sciences, Prague, Czech Republic.
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Lodovichi C, Ratto GM. Control of circadian rhythm on cortical excitability and synaptic plasticity. Front Neural Circuits 2023; 17:1099598. [PMID: 37063387 PMCID: PMC10098176 DOI: 10.3389/fncir.2023.1099598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 03/09/2023] [Indexed: 04/18/2023] Open
Abstract
Living organisms navigate through a cyclic world: activity, feeding, social interactions are all organized along the periodic succession of night and day. At the cellular level, periodic activity is controlled by the molecular machinery driving the circadian regulation of cellular homeostasis. This mechanism adapts cell function to the external environment and its crucial importance is underlined by its robustness and redundancy. The cell autonomous clock regulates cell function by the circadian modulation of mTOR, a master controller of protein synthesis. Importantly, mTOR integrates the circadian modulation with synaptic activity and extracellular signals through a complex signaling network that includes the RAS-ERK pathway. The relationship between mTOR and the circadian clock is bidirectional, since mTOR can feedback on the cellular clock to shift the cycle to maintain the alignment with the environmental conditions. The mTOR and ERK pathways are crucial determinants of synaptic plasticity and function and thus it is not surprising that alterations of the circadian clock cause defective responses to environmental challenges, as witnessed by the bi-directional relationship between brain disorders and impaired circadian regulation. In physiological conditions, the feedback between the intrinsic clock and the mTOR pathway suggests that also synaptic plasticity should undergo circadian regulation.
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Affiliation(s)
- Claudia Lodovichi
- Institute of Neuroscience, Consiglio Nazionale delle Ricerche (CNR), Padova, Italy
- Veneto Institute of Molecular Medicine (VIMM), Padova, Italy
- Padova Neuroscience Center, Universitá degli Studi di Padova, Padova, Italy
- *Correspondence: Claudia Lodovichi,
| | - Gian Michele Ratto
- Institute of Neuroscience, Consiglio Nazionale delle Ricerche (CNR), Padova, Italy
- Padova Neuroscience Center, Universitá degli Studi di Padova, Padova, Italy
- National Enterprise for NanoScience and NanoTechnology (NEST), Istituto Nanoscienze, Consiglio Nazionale delle Ricerche (CNR) and Scuola Normale Superiore, Pisa, Italy
- Gian Michele Ratto,
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Zhang J, Gao S, Liu W. Bioinformatics-Based Analysis of Circadian Rhythm Regulation Mechanisms in Alzheimer's Disease. J Alzheimers Dis 2023; 94:1209-1224. [PMID: 37355898 PMCID: PMC10473131 DOI: 10.3233/jad-230177] [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] [Accepted: 05/26/2023] [Indexed: 06/26/2023]
Abstract
BACKGROUND There is a close association between Alzheimer's disease (AD) and circadian rhythms, and neuroinflammatory-related pathways are associated with both interactions. OBJECTIVE To reveal the relationship between circadian rhythm (CR) and AD at the level of genes, pathways, and molecular functions through bioinformatics. METHODS We analyzed the differential genes between AD and control groups in GSE122063 and found the important gene modules; obtained CR-related genes from GeenCard database; used Venn 2.1 database to obtain the intersection of genes of AD important modules with CR-related genes; and used STRING database and Cytoscape 3.7.1 to construct the gene protein-protein interaction network. The MCODE plugin was used to screen pivotal genes and analyze their differential expression. We trranslated with www.DeepL.com/Translator (free version) to obtain transcriptional regulatory relationships from the TRRUST database and construct a hub gene-transcription factor relationship network. RESULTS A total of 42 common genes were screened from AD and CR genes, mainly involving signaling pathways such as neuroactive ligand-receptor interactions. A total of 10 pivotal genes were screened from the common genes of CR and AD, which were statistically significant in the comparison of AD and control groups (p < 0.001), and ROC analysis showed that all these pivotal genes had good diagnostic significance. A total of 36 TFs of pivotal genes were obtained. CONCLUSION We identified AD- and CR-related signaling pathways and 10 hub genes and found strong associations between these related genes and biological processes such as inflammation.
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Affiliation(s)
- Jie Zhang
- The First Clinical Medical College of Shandong University of Traditional Chinese, Medicine, Jinan, Shandong Province, China
| | - Shang Gao
- The First Clinical Medical College of Shandong University of Traditional Chinese, Medicine, Jinan, Shandong Province, China
| | - Wei Liu
- Shandong University of Traditional Chinese Medicine, Jinan, Shandong Province, China
- The Second Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong Province, China
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Role of Omega-3 Fatty Acids as Non-Photic Zeitgebers and Circadian Clock Synchronizers. Int J Mol Sci 2022; 23:ijms232012162. [DOI: 10.3390/ijms232012162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 10/09/2022] [Accepted: 10/10/2022] [Indexed: 11/16/2022] Open
Abstract
Omega-3 fatty acids (ω-3 FAs) are well-known for their actions on immune/inflammatory and neurological pathways, functions that are also under circadian clock regulation. The daily photoperiod represents the primary circadian synchronizer (‘zeitgeber’), although diverse studies have pointed towards an influence of dietary FAs on the biological clock. A comprehensive literature review was conducted following predefined selection criteria with the aim of updating the evidence on the molecular mechanisms behind circadian rhythm regulation by ω-3 FAs. We collected preclinical and clinical studies, systematic reviews, and metanalyses focused on the effect of ω-3 FAs on circadian rhythms. Twenty animal (conducted on rodents and piglets) and human trials and one observational study providing evidence on the regulation of neurological, inflammatory/immune, metabolic, reproductive, cardiovascular, and biochemical processes by ω-3 FAs via clock genes were discussed. The evidence suggests that ω-3 FAs may serve as non-photic zeitgebers and prove therapeutically beneficial for circadian disruption-related pathologies. Future work should focus on the role of clock genes as a target for the therapeutic use of ω-3 FAs in inflammatory and neurological disorders, as well as on the bidirectional association between the molecular clock and ω-3 FAs.
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Valeri J, O’Donovan SM, Wang W, Sinclair D, Bollavarapu R, Gisabella B, Platt D, Stockmeier C, Pantazopoulos H. Altered expression of somatostatin signaling molecules and clock genes in the hippocampus of subjects with substance use disorder. Front Neurosci 2022; 16:903941. [PMID: 36161151 PMCID: PMC9489843 DOI: 10.3389/fnins.2022.903941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 08/16/2022] [Indexed: 11/13/2022] Open
Abstract
Substance use disorders are a debilitating group of psychiatric disorders with a high degree of comorbidity with major depressive disorder. Sleep and circadian rhythm disturbances are commonly reported in people with substance use disorder and major depression and associated with increased risk of relapse. Hippocampal somatostatin signaling is involved in encoding and consolidation of contextual memories which contribute to relapse in substance use disorder. Somatostatin and clock genes also have been implicated in depression, suggesting that these molecules may represent key converging pathways involved in contextual memory processing in substance use and major depression. We used hippocampal tissue from a cohort of subjects with substance use disorder (n = 20), subjects with major depression (n = 20), subjects with comorbid substance use disorder and major depression (n = 24) and psychiatrically normal control subjects (n = 20) to test the hypothesis that expression of genes involved in somatostatin signaling and clock genes is altered in subjects with substance use disorder. We identified decreased expression of somatostatin in subjects with substance use disorder and in subjects with major depression. We also observed increased somatostatin receptor 2 expression in subjects with substance use disorder with alcohol in the blood at death and decreased expression in subjects with major depression. Expression of the clock genes Arntl, Nr1d1, Per2 and Cry2 was increased in subjects with substance use disorder. Arntl and Nr1d1 expression in comparison was decreased in subjects with major depression. We observed decreased expression of Gsk3β in subjects with substance use disorder. Subjects with comorbid substance use disorder and major depression displayed minimal changes across all outcome measures. Furthermore, we observed a significant increase in history of sleep disturbances in subjects with substance use disorder. Our findings represent the first evidence for altered somatostatin and clock gene expression in the hippocampus of subjects with substance use disorder and subjects with major depression. Altered expression of these molecules may impact memory consolidation and contribute to relapse risk.
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Affiliation(s)
- Jake Valeri
- Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, MS, United States
- Program in Neuroscience, University of Mississippi Medical Center, Jackson, MS, United States
| | - Sinead M. O’Donovan
- Department of Neuroscience, University of Toledo Medical Center, Toledo, OH, United States
| | - Wei Wang
- Department of Medicine and Neurology, Brigham and Women’s Hospital, Boston, MA, United States
| | - David Sinclair
- Department of Neuroscience, University of Toledo Medical Center, Toledo, OH, United States
| | - Ratna Bollavarapu
- Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, MS, United States
| | - Barbara Gisabella
- Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, MS, United States
- Program in Neuroscience, University of Mississippi Medical Center, Jackson, MS, United States
| | - Donna Platt
- Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, MS, United States
- Program in Neuroscience, University of Mississippi Medical Center, Jackson, MS, United States
| | - Craig Stockmeier
- Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, MS, United States
- Program in Neuroscience, University of Mississippi Medical Center, Jackson, MS, United States
| | - Harry Pantazopoulos
- Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, MS, United States
- Program in Neuroscience, University of Mississippi Medical Center, Jackson, MS, United States
- *Correspondence: Harry Pantazopoulos,
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Smies CW, Bodinayake KK, Kwapis JL. Time to learn: The role of the molecular circadian clock in learning and memory. Neurobiol Learn Mem 2022; 193:107651. [PMID: 35697314 PMCID: PMC9903177 DOI: 10.1016/j.nlm.2022.107651] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 05/18/2022] [Accepted: 06/07/2022] [Indexed: 12/27/2022]
Abstract
The circadian system plays an important role in aligning biological processes with the external time of day. A range of physiological functions are governed by the circadian cycle, including memory processes, yet little is understood about how the clock interfaces with memory at a molecular level. The molecular circadian clock consists of four key genes/gene families, Period, Clock, Cryptochrome, and Bmal1, that rhythmically cycle in an ongoing transcription-translation negative feedback loop that maintains an approximately 24-hour cycle within cells of the brain and body. In addition to their roles in generating the circadian rhythm within the brain's master pacemaker (the suprachiasmatic nucleus), recent research has suggested that these clock genes may function locally within memory-relevant brain regions to modulate memory across the day/night cycle. This review will discuss how these clock genes function both within the brain's central clock and within memory-relevant brain regions to exert circadian control over memory processes. For each core clock gene, we describe the current research that demonstrates a potential role in memory and outline how these clock genes might interface with cascades known to support long-term memory formation. Together, the research suggests that clock genes function locally within satellite clocks across the brain to exert circadian control over long-term memory formation and possibly other biological processes. Understanding how clock genes might interface with local molecular cascades in the hippocampus and other brain regions is a critical step toward developing treatments for the myriad disorders marked by dysfunction of both the circadian system and cognitive processes.
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Affiliation(s)
- Chad W Smies
- Department of Biology, Pennsylvania State University, University Park, PA 16802, USA
| | - Kasuni K Bodinayake
- Department of Biology, Pennsylvania State University, University Park, PA 16802, USA
| | - Janine L Kwapis
- Department of Biology, Pennsylvania State University, University Park, PA 16802, USA.
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17
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Hoyt KR, Obrietan K. Circadian clocks, cognition, and Alzheimer's disease: synaptic mechanisms, signaling effectors, and chronotherapeutics. Mol Neurodegener 2022; 17:35. [PMID: 35525980 PMCID: PMC9078023 DOI: 10.1186/s13024-022-00537-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 04/08/2022] [Indexed: 12/20/2022] Open
Abstract
Modulation of basic biochemical and physiological processes by the circadian timing system is now recognized as a fundamental feature of all mammalian organ systems. Within the central nervous system, these clock-modulating effects are reflected in some of the most complex behavioral states including learning, memory, and mood. How the clock shapes these behavioral processes is only now beginning to be realized. In this review we describe recent findings regarding the complex set of cellular signaling events, including kinase pathways, gene networks, and synaptic circuits that are under the influence of the clock timing system and how this, in turn, shapes cognitive capacity over the circadian cycle. Further, we discuss the functional roles of the master circadian clock located in the suprachiasmatic nucleus, and peripheral oscillator populations within cortical and limbic circuits, in the gating of synaptic plasticity and memory over the circadian cycle. These findings are then used as the basis to discuss the connection between clock dysregulation and cognitive impairments resulting from Alzheimer's disease (AD). In addition, we discuss the conceptually novel idea that in AD, there is a selective disruption of circadian timing within cortical and limbic circuits, and that it is the disruption/desynchronization of these regions from the phase-entraining effects of the SCN that underlies aspects of the early- and mid-stage cognitive deficits in AD. Further, we discuss the prospect that the disruption of circadian timing in AD could produce a self-reinforcing feedback loop, where disruption of timing accelerates AD pathogenesis (e.g., amyloid deposition, oxidative stress and cell death) that in turn leads to a further disruption of the circadian timing system. Lastly, we address potential therapeutic approaches that could be used to strengthen cellular timing networks and, in turn, how these approaches could be used to improve cognitive capacity in Alzheimer's patients.
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Affiliation(s)
- Kari R Hoyt
- Division of Pharmaceutics and Pharmacology, Ohio State University, 412 Riffe Building, 12th Ave, Columbus, OH, 43210, USA.
| | - Karl Obrietan
- Department of Neuroscience, Ohio State University, Graves Hall, 333 W. 10th Ave, Columbus, OH, 43210, USA.
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18
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Per2 Expression Regulates the Spatial Working Memory of Mice through DRD1-PKA-CREB Signaling. Mol Neurobiol 2022; 59:4292-4303. [PMID: 35508866 DOI: 10.1007/s12035-022-02845-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 04/20/2022] [Indexed: 10/18/2022]
Abstract
Several individuals worldwide show cognitive impairment due to various reasons, including a prolonged lifespan and an altered lifestyle. Various causes, such as broken circadian rhythms and dopamine-related factors, have been proposed to be involved in the development of cognitive impairment. However, the underlying pathways remain elusive. Humans with circadian misalignment often face cognitive impairments, and animals with mutations in circadian rhythm-related genes display impaired cognitive functions. To analyze this in detail, this study aimed to investigate the pathways potentially involved in cognitive impairment using Period2 (Per2) transgenic animals. Spatial working memory performance in Per2 knockout (KO) and wild-type mice was assessed using the Barnes maze and Y-maze. The dopamine-related protein expression levels in the hippocampus were measured by Western blotting and enzyme-linked immunosorbent assay (ELISA). Per2 KO mice exhibited impaired spatial working memory, and the expression levels of dopamine receptor D1 (DRD1), protein kinase A (PKA), and cAMP response element-binding protein (CREB) were higher in Per2 KO mice than in control mice. Additionally, DRD1 expression levels were inversely proportional to those of PER2. Thus, memory tests were again conducted after administration of the DRD1 antagonist SCH-23390. Per2 KO mice recovered from memory impairment, and the levels of PKA and CREB decreased after treatment. The effects of Aβ on memory in Per2 mice were also investigated, and we found the increased Aβ levels did not influence the memory performance of Per2 mice after SCH-23390 treatment. These results indicate that Per2 expression levels might influence spatial working memory performance via DRD1-PKA-CREB-dependent signaling.
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Liu D, Li J, Lin H, Lorsung E, Le N, Singla R, Mishra A, Fukunaga R, Cao R. Circadian activities of the brain MNK-eIF4E signalling axis contribute to diurnal rhythms of some cognitive functions. Eur J Neurosci 2022; 56:3553-3569. [PMID: 35481869 PMCID: PMC9477079 DOI: 10.1111/ejn.15678] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 03/28/2022] [Accepted: 04/03/2022] [Indexed: 12/18/2022]
Abstract
Although it is well recognized that the circadian timing system profoundly influences cognitive performance, the underlying molecular mechanisms remain poorly defined. Our previous work has found that the mitogen-activated protein kinase-interacting kinase (MNK)-eukaryotic translation initiation factor 4E (eIF4E) axis, a conserved cellular signalling pathway regulating mRNA translation, modulates the function of the suprachiasmatic nucleus (SCN), the master circadian clock. Here, with the use of a combination of genetic, biochemical and behavioural approaches, we investigated the distribution and temporal regulation of eIF4E phosphorylation in the brain and its role in regulating the diurnal oscillations of some aspects of cognition in mice. We found that activities of the MNK-eIF4E axis, as indicated by the level of eIF4E phosphorylation at Ser209, exhibited significant circadian oscillations in a variety of brain regions, including but not limited to the prefrontal cortex, the hippocampus, the amygdala and the cerebellum. Phosphorylated eIF4E was enriched in neurons but not in astrocytes or microglia. Mice lacking eIF4E phosphorylation (eIF4ES209A/S209A ) or the MNKs (Mnk1-/-,2-/- ), the kinases that phosphorylate eIF4E, exhibited impaired diurnal variations of novel object recognition, object location memory, Barnes maze learning and ambulatory activities. Together, these results suggest that circadian activities of the MNK-eIF4E axis contribute to the diurnal rhythms of some cognitive functions, highlighting a role for rhythmic translational control in circadian regulation of cognitive performance.
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Affiliation(s)
- Dong Liu
- Department of Biomedical Sciences, University of Minnesota Medical School, Duluth, MN, USA
| | - Jin Li
- Department of Biomedical Sciences, University of Minnesota Medical School, Duluth, MN, USA.,Institute of Neuroscience and Translational Medicine, College of Life Science and Agronomy, Zhoukou Normal University, Zhoukou, China
| | - Hao Lin
- Department of Biomedical Sciences, University of Minnesota Medical School, Duluth, MN, USA
| | - Ethan Lorsung
- Department of Biomedical Sciences, University of Minnesota Medical School, Duluth, MN, USA
| | - Nam Le
- Department of Biomedical Sciences, University of Minnesota Medical School, Duluth, MN, USA
| | - Rubal Singla
- Department of Biomedical Sciences, University of Minnesota Medical School, Duluth, MN, USA
| | - Abhishek Mishra
- Department of Biomedical Sciences, University of Minnesota Medical School, Duluth, MN, USA
| | - Rikiro Fukunaga
- Department of Biochemistry, Faculty of Pharmacy, Osaka Medical and Pharmaceutical University, Takatsuki, Japan
| | - Ruifeng Cao
- Department of Biomedical Sciences, University of Minnesota Medical School, Duluth, MN, USA.,Department of Neuroscience, University of Minnesota Medical School, Minneapolis, MN, USA
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Davis JA, Paul JR, Mokashi MV, Yates SA, Mount DJ, Munir HA, Goode LK, Young ME, Allison DB, Gamble KL. Circadian disruption of hippocampus in an early senescence male mouse model. Pharmacol Biochem Behav 2022; 217:173388. [PMID: 35447158 DOI: 10.1016/j.pbb.2022.173388] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 02/18/2022] [Accepted: 04/11/2022] [Indexed: 10/18/2022]
Abstract
Age-related cognitive decline and disruptions in circadian rhythms are growing problems as the average human life span increases. Multiple strains of the senescence-accelerated mouse (SAM) show reduced life span, and the SAMP8 strain in particular has been well documented to show cognitive deficits in behavior as well as a bimodal pattern of circadian locomotor activity. However, little is known about circadian regulation within the hippocampus of these strains of mice. Here we test the hypothesis that in this early senescence model, disruption of the molecular circadian clock in SAMP8 animals drives disrupted behavior and physiology. We found normal rhythms in PER2 protein expression in the SCN of SAMP8 animals at 4 months, despite the presence of disrupted wheel-running activity rhythms at this age. Interestingly, a significant rhythm in PER2 expression was not observed in the hippocampus of SAMP8 animals, despite a significant 24-h rhythm in SAMR1 controls. We also examined time-restricted feeding as a potential strategy to rescue disrupted hippocampal plasticity. Time-restricted feeding increased long-term potentiation at Schaffer collateral-CA1 synapses in SAMP8 mice (compared to SAMR1 controls). Overall, we confirm disrupted circadian locomotor rhythms in this early senescence model (as early as 4 months) and discovered that this disruption is not due to arrhythmic PER2 levels in the SCN; however, other extra-SCN circadian oscillators (i.e., hippocampus) are likely impaired with accelerated aging.
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Affiliation(s)
- Jennifer A Davis
- Department of Psychiatry and Behavioral Neurobiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Jodi R Paul
- Department of Psychiatry and Behavioral Neurobiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Mugdha V Mokashi
- Department of Psychiatry and Behavioral Neurobiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Stefani A Yates
- Department of Psychiatry and Behavioral Neurobiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Daniel J Mount
- Department of Psychiatry and Behavioral Neurobiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Hira A Munir
- Department of Psychiatry and Behavioral Neurobiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Lacy K Goode
- Department of Psychiatry and Behavioral Neurobiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Martin E Young
- Division of Cardiovascular Disease, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - David B Allison
- School of Public Health, Indiana University, Bloomington, IN, USA.
| | - Karen L Gamble
- Department of Psychiatry and Behavioral Neurobiology, University of Alabama at Birmingham, Birmingham, AL, USA.
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Ilina A, Khavinson V, Linkova N, Petukhov M. Neuroepigenetic Mechanisms of Action of Ultrashort Peptides in Alzheimer's Disease. Int J Mol Sci 2022; 23:ijms23084259. [PMID: 35457077 PMCID: PMC9032300 DOI: 10.3390/ijms23084259] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 04/07/2022] [Accepted: 04/09/2022] [Indexed: 12/23/2022] Open
Abstract
Epigenetic regulation of gene expression is necessary for maintaining higher-order cognitive functions (learning and memory). The current understanding of the role of epigenetics in the mechanism of Alzheimer’s disease (AD) is focused on DNA methylation, chromatin remodeling, histone modifications, and regulation of non-coding RNAs. The pathogenetic links of this disease are the misfolding and aggregation of tau protein and amyloid peptides, mitochondrial dysfunction, oxidative stress, impaired energy metabolism, destruction of the blood–brain barrier, and neuroinflammation, all of which lead to impaired synaptic plasticity and memory loss. Ultrashort peptides are promising neuroprotective compounds with a broad spectrum of activity and without reported side effects. The main aim of this review is to analyze the possible epigenetic mechanisms of the neuroprotective action of ultrashort peptides in AD. The review highlights the role of short peptides in the AD pathophysiology. We formulate the hypothesis that peptide regulation of gene expression can be mediated by the interaction of short peptides with histone proteins, cis- and transregulatory DNA elements and effector molecules (DNA/RNA-binding proteins and non-coding RNA). The development of therapeutic agents based on ultrashort peptides may offer a promising addition to the multifunctional treatment of AD.
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Affiliation(s)
- Anastasiia Ilina
- Department of Biogerontology, Saint Petersburg Institute of Bioregulation and Gerontology, 19711 Saint Petersburg, Russia; (V.K.); (N.L.)
- Department of General Pathology and Pathological Physiology, Institute of Experimental Medicine, 197376 Saint Petersburg, Russia
- Correspondence: ; Tel.: +7-(953)145-89-58
| | - Vladimir Khavinson
- Department of Biogerontology, Saint Petersburg Institute of Bioregulation and Gerontology, 19711 Saint Petersburg, Russia; (V.K.); (N.L.)
- Group of Peptide Regulation of Aging, Pavlov Institute of Physiology, Russian Academy of Sciences, 199034 Saint Petersburg, Russia
| | - Natalia Linkova
- Department of Biogerontology, Saint Petersburg Institute of Bioregulation and Gerontology, 19711 Saint Petersburg, Russia; (V.K.); (N.L.)
| | - Mikhael Petukhov
- Department of Molecular Radiation Biophysics, Petersburg Nuclear Physics Institute Named after B.P. Konstantinov, NRC “Kurchatov Institute”, 188300 Gatchina, Russia;
- Group of Biophysics, Higher Engineering and Technical School, Peter the Great St. Petersburg Polytechnic University, 195251 Saint Petersburg, Russia
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von Gall C. The Effects of Light and the Circadian System on Rhythmic Brain Function. Int J Mol Sci 2022; 23:ijms23052778. [PMID: 35269920 PMCID: PMC8911243 DOI: 10.3390/ijms23052778] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 02/22/2022] [Accepted: 03/01/2022] [Indexed: 02/06/2023] Open
Abstract
Life on earth has evolved under the influence of regularly recurring changes in the environment, such as the 24 h light/dark cycle. Consequently, organisms have developed endogenous clocks, generating 24 h (circadian) rhythms that serve to anticipate these rhythmic changes. In addition to these circadian rhythms, which persist in constant conditions and can be entrained to environmental rhythms, light drives rhythmic behavior and brain function, especially in nocturnal laboratory rodents. In recent decades, research has made great advances in the elucidation of the molecular circadian clockwork and circadian light perception. This review summarizes the role of light and the circadian clock in rhythmic brain function, with a focus on the complex interaction between the different components of the mammalian circadian system. Furthermore, chronodisruption as a consequence of light at night, genetic manipulation, and neurodegenerative diseases is briefly discussed.
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Affiliation(s)
- Charlotte von Gall
- Institute of Anatomy II, Medical Faculty, Heinrich Heine University, 40225 Dusseldorf, Germany
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23
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Austad SN, Ballinger S, Buford TW, Carter CS, Smith DL, Darley-Usmar V, Zhang J. Targeting whole body metabolism and mitochondrial bioenergetics in the drug development for Alzheimer's disease. Acta Pharm Sin B 2022; 12:511-531. [PMID: 35256932 PMCID: PMC8897048 DOI: 10.1016/j.apsb.2021.06.014] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/26/2021] [Accepted: 06/16/2021] [Indexed: 02/07/2023] Open
Abstract
Aging is by far the most prominent risk factor for Alzheimer's disease (AD), and both aging and AD are associated with apparent metabolic alterations. As developing effective therapeutic interventions to treat AD is clearly in urgent need, the impact of modulating whole-body and intracellular metabolism in preclinical models and in human patients, on disease pathogenesis, have been explored. There is also an increasing awareness of differential risk and potential targeting strategies related to biological sex, microbiome, and circadian regulation. As a major part of intracellular metabolism, mitochondrial bioenergetics, mitochondrial quality-control mechanisms, and mitochondria-linked inflammatory responses have been considered for AD therapeutic interventions. This review summarizes and highlights these efforts.
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Key Words
- ACE2, angiotensin I converting enzyme (peptidyl-dipeptidase A) 2
- AD, Alzheimer's disease
- ADP, adenosine diphosphate
- ADRD, AD-related dementias
- Aβ, amyloid β
- CSF, cerebrospinal fluid
- Circadian regulation
- DAMPs
- DAMPs, damage-associated molecular patterns
- Diabetes
- ER, estrogen receptor
- ETC, electron transport chain
- FCCP, trifluoromethoxy carbonylcyanide phenylhydrazone
- FPR-1, formyl peptide receptor 1
- GIP, glucose-dependent insulinotropic polypeptide
- GLP-1, glucagon-like peptide-1
- HBP, hexoamine biosynthesis pathway
- HTRA, high temperature requirement A
- Hexokinase biosynthesis pathway
- I3A, indole-3-carboxaldehyde
- IRF-3, interferon regulatory factor 3
- LC3, microtubule associated protein light chain 3
- LPS, lipopolysaccharide
- LRR, leucine-rich repeat
- MAVS, mitochondrial anti-viral signaling
- MCI, mild cognitive impairment
- MRI, magnetic resonance imaging
- MRS, magnetic resonance spectroscopy
- Mdivi-1, mitochondrial division inhibitor 1
- Microbiome
- Mitochondrial DNA
- Mitochondrial electron transport chain
- Mitochondrial quality control
- NLRP3, leucine-rich repeat (LRR)-containing protein (NLR)-like receptor family pyrin domain containing 3
- NOD, nucleotide-binding oligomerization domain
- NeuN, neuronal nuclear protein
- PET, fluorodeoxyglucose (FDG)-positron emission tomography
- PKA, protein kinase A
- POLβ, the base-excision repair enzyme DNA polymerase β
- ROS, reactive oxygen species
- Reactive species
- SAMP8, senescence-accelerated mice
- SCFAs, short-chain fatty acids
- SIRT3, NAD-dependent deacetylase sirtuin-3
- STING, stimulator of interferon genes
- STZ, streptozotocin
- SkQ1, plastoquinonyldecyltriphenylphosphonium
- T2D, type 2 diabetes
- TCA, Tricarboxylic acid
- TLR9, toll-like receptor 9
- TMAO, trimethylamine N-oxide
- TP, tricyclic pyrone
- TRF, time-restricted feeding
- cAMP, cyclic adenosine monophosphate
- cGAS, cyclic GMP/AMP synthase
- hAPP, human amyloid precursor protein
- hPREP, human presequence protease
- i.p., intraperitoneal
- mTOR, mechanistic target of rapamycin
- mtDNA, mitochondrial DNA
- αkG, alpha-ketoglutarate
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Affiliation(s)
- Steven N. Austad
- Department of Biology, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Scott Ballinger
- Department of Pathology, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Thomas W. Buford
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Christy S. Carter
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Daniel L. Smith
- Department of Nutrition Sciences, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Victor Darley-Usmar
- Department of Pathology, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Jianhua Zhang
- Department of Pathology, University of Alabama at Birmingham, Birmingham, AL 35294, USA
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Liška K, Sládek M, Houdek P, Shrestha N, Lužná V, Ralph MR, Sumová A. High Sensitivity of the Circadian Clock in the Hippocampal Dentate Gyrus to Glucocorticoid- and GSK3-Beta-Dependent Signals. Neuroendocrinology 2022; 112:384-398. [PMID: 34111876 DOI: 10.1159/000517689] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 06/07/2021] [Indexed: 11/19/2022]
Abstract
AIMS Circadian clocks in the hippocampus (HPC) align memory processing with appropriate time of day. Our study was aimed at ascertaining the specificity of glycogen synthase kinase 3-beta (GSK3β)- and glucocorticoid (GC)-dependent pathways in the entrainment of clocks in individual HPC regions, CA1-3, and dentate gyrus (DG). METHODS The role of GCs was addressed in vivo by comparing the effects of adrenalectomy (ADX) and subsequent dexamethasone (DEX) supplementation on clock gene expression profiles (Per1, Per2, Nr1d1, and Bmal1). In vitro the effects of DEX and the GSK3β inhibitor, CHIR-99021, were assessed from recordings of bioluminescence rhythms in HPC organotypic explants of mPER2Luc mice. RESULTS Circadian rhythms of clock gene expression in all HPC regions were abolished by ADX, and DEX injections to the rats rescued those rhythms in DG. The DEX treatment of the HPC explants significantly lengthened periods of the bioluminescence rhythms in all HPC regions with the most significant effect in DG. In contrast to DEX, CHIR-99021 significantly shortened the period of bioluminescence rhythm. Again, the effect was most significant in DG which lacks the endogenously inactivated (phosphorylated) form of GSK3β. Co-treatment of the explants with CHIR-99021 and DEX produced the CHIR-99021 response. Therefore, the GSK3β-mediated pathway had dominant effect on the clocks. CONCLUSION GSK3β- and GC-dependent pathways entrain the clock in individual HPC regions by modulating their periods in an opposite manner. The results provide novel insights into the mechanisms connecting the arousal state-relevant signals with temporal control of HPC-dependent memory and cognitive functions.
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Affiliation(s)
- Karolína Liška
- Laboratory of Biological Rhythms, Institute of Physiology of the Czech Academy of Sciences, Prague, Czechia
- Third Faculty of Medicine, Charles University, Prague, Czechia
| | - Martin Sládek
- Laboratory of Biological Rhythms, Institute of Physiology of the Czech Academy of Sciences, Prague, Czechia
| | - Pavel Houdek
- Laboratory of Biological Rhythms, Institute of Physiology of the Czech Academy of Sciences, Prague, Czechia
| | - Norzin Shrestha
- Department of Cell and Systems Biology, University of Toronto, Toronto, Ontario, Canada
| | - Vendula Lužná
- Laboratory of Biological Rhythms, Institute of Physiology of the Czech Academy of Sciences, Prague, Czechia
| | - Martin R Ralph
- Department of Psychology, University of Toronto, Toronto, Ontario, Canada
| | - Alena Sumová
- Laboratory of Biological Rhythms, Institute of Physiology of the Czech Academy of Sciences, Prague, Czechia
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25
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Fang K, Liu D, Pathak SS, Yang B, Li J, Karthikeyan R, Chao OY, Yang YM, Jin VX, Cao R. Disruption of Circadian Rhythms by Ambient Light during Neurodevelopment Leads to Autistic-like Molecular and Behavioral Alterations in Adult Mice. Cells 2021; 10:3314. [PMID: 34943821 PMCID: PMC8699695 DOI: 10.3390/cells10123314] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 11/24/2021] [Accepted: 11/24/2021] [Indexed: 02/01/2023] Open
Abstract
Although circadian rhythms are thought to be essential for maintaining body health, the effects of chronic circadian disruption during neurodevelopment remain elusive. Here, using the "Short Day" (SD) mouse model, in which an 8 h/8 h light/dark (LD) cycle was applied from embryonic day 1 to postnatal day 42, we investigated the molecular and behavioral changes after circadian disruption in mice. Adult SD mice fully entrained to the 8 h/8 h LD cycle, and the circadian oscillations of the clock proteins, PERIOD1 and PERIOD2, were disrupted in the suprachiasmatic nucleus and the hippocampus of these mice. By RNA-seq widespread changes were identified in the hippocampal transcriptome, which are functionally associated with neurodevelopment, translational control, and autism. By western blotting and immunostaining hyperactivation of the mTOR and MAPK signaling pathways and enhanced global protein synthesis were found in the hippocampi of SD mice. Electrophysiological recording uncovered enhanced excitatory, but attenuated inhibitory, synaptic transmission in the hippocampal CA1 pyramidal neurons. These functional changes at synapses were corroborated by the immature morphology of the dendritic spines in these neurons. Lastly, autistic-like animal behavioral changes, including impaired social interaction and communication, increased repetitive behaviors, and impaired novel object recognition and location memory, were found in SD mice. Together, these results demonstrate molecular, cellular, and behavioral changes in SD mice, all of which resemble autistic-like phenotypes caused by circadian rhythm disruption. The findings highlight a critical role for circadian rhythms in neurodevelopment.
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Affiliation(s)
- Kun Fang
- Department of Molecular Medicine, University of Texas Health San Antonio, San Antonio, TX 78229, USA; (K.F.); (B.Y.)
| | - Dong Liu
- Department of Biomedical Sciences, University of Minnesota Medical School, Duluth, MN 55812, USA; (D.L.); (S.S.P.); (J.L.); (R.K.); (O.Y.C.)
| | - Salil S. Pathak
- Department of Biomedical Sciences, University of Minnesota Medical School, Duluth, MN 55812, USA; (D.L.); (S.S.P.); (J.L.); (R.K.); (O.Y.C.)
| | - Bowen Yang
- Department of Molecular Medicine, University of Texas Health San Antonio, San Antonio, TX 78229, USA; (K.F.); (B.Y.)
| | - Jin Li
- Department of Biomedical Sciences, University of Minnesota Medical School, Duluth, MN 55812, USA; (D.L.); (S.S.P.); (J.L.); (R.K.); (O.Y.C.)
| | - Ramanujam Karthikeyan
- Department of Biomedical Sciences, University of Minnesota Medical School, Duluth, MN 55812, USA; (D.L.); (S.S.P.); (J.L.); (R.K.); (O.Y.C.)
| | - Owen Y. Chao
- Department of Biomedical Sciences, University of Minnesota Medical School, Duluth, MN 55812, USA; (D.L.); (S.S.P.); (J.L.); (R.K.); (O.Y.C.)
| | - Yi-Mei Yang
- Department of Biomedical Sciences, University of Minnesota Medical School, Duluth, MN 55812, USA; (D.L.); (S.S.P.); (J.L.); (R.K.); (O.Y.C.)
- Department of Neuroscience, University of Minnesota Medical School, Minneapolis, MN 55455, USA
| | - Victor X. Jin
- Department of Molecular Medicine, University of Texas Health San Antonio, San Antonio, TX 78229, USA; (K.F.); (B.Y.)
| | - Ruifeng Cao
- Department of Biomedical Sciences, University of Minnesota Medical School, Duluth, MN 55812, USA; (D.L.); (S.S.P.); (J.L.); (R.K.); (O.Y.C.)
- Department of Neuroscience, University of Minnesota Medical School, Minneapolis, MN 55455, USA
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de Zavalia N, Schoettner K, Goldsmith JA, Solis P, Ferraro S, Parent G, Amir S. Bmal1 in the striatum influences alcohol intake in a sexually dimorphic manner. Commun Biol 2021; 4:1227. [PMID: 34702951 PMCID: PMC8548330 DOI: 10.1038/s42003-021-02715-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Accepted: 09/22/2021] [Indexed: 01/03/2023] Open
Abstract
Alcohol consumption has been strongly associated with circadian clock gene expression in mammals. Analysis of clock genes revealed a potential role of Bmal1 in the control of alcohol drinking behavior. However, a causal role of Bmal1 and neural pathways through which it may influence alcohol intake have not yet been established. Here we show that selective ablation of Bmal1 (Cre/loxP system) from medium spiny neurons of the striatum induces sexual dimorphic alterations in alcohol consumption in mice, resulting in augmentation of voluntary alcohol intake in males and repression of intake in females. Per2mRNA expression, quantified by qPCR, decreases in the striatum after the deletion of Bmal1. To address the possibility that the effect of striatal Bmal1 deletion on alcohol intake and preference involves changes in the local expression of Per2, voluntary alcohol intake (two-bottle, free-choice paradigm) was studied in mice with a selective ablation of Per2 from medium spiny neurons of the striatum. Striatal ablation of Per2 increases voluntary alcohol intake in males but has no effect in females. Striatal Bmal1 and Per2 expression thus may contribute to the propensity to consume alcohol in a sex -specific manner in mice.
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Affiliation(s)
- Nuria de Zavalia
- Center for Studies in Behavioral Neurobiology, Department of Psychology, Concordia University, Montreal, Canada.
| | - Konrad Schoettner
- Center for Studies in Behavioral Neurobiology, Department of Psychology, Concordia University, Montreal, Canada
| | - Jory A Goldsmith
- Center for Studies in Behavioral Neurobiology, Department of Psychology, Concordia University, Montreal, Canada
| | - Pavel Solis
- Center for Studies in Behavioral Neurobiology, Department of Psychology, Concordia University, Montreal, Canada
| | - Sarah Ferraro
- Center for Studies in Behavioral Neurobiology, Department of Psychology, Concordia University, Montreal, Canada
| | - Gabrielle Parent
- Center for Studies in Behavioral Neurobiology, Department of Psychology, Concordia University, Montreal, Canada
| | - Shimon Amir
- Center for Studies in Behavioral Neurobiology, Department of Psychology, Concordia University, Montreal, Canada.
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27
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Wang XL, Li L. Circadian Clock Regulates Inflammation and the Development of Neurodegeneration. Front Cell Infect Microbiol 2021; 11:696554. [PMID: 34595127 PMCID: PMC8476957 DOI: 10.3389/fcimb.2021.696554] [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] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 08/18/2021] [Indexed: 12/15/2022] Open
Abstract
The circadian clock regulates numerous key physiological processes and maintains cellular, tissue, and systemic homeostasis. Disruption of circadian clock machinery influences key activities involved in immune response and brain function. Moreover, Immune activation has been closely linked to neurodegeneration. Here, we review the molecular clock machinery and the diurnal variation of immune activity. We summarize the circadian control of immunity in both central and peripheral immune cells, as well as the circadian regulation of brain cells that are implicated in neurodegeneration. We explore the important role of systemic inflammation on neurodegeneration. The circadian clock modulates cellular metabolism, which could be a mechanism underlying circadian control. We also discuss the circadian interventions implicated in inflammation and neurodegeneration. Targeting circadian clocks could be a potential strategy for the prevention and treatment of inflammation and neurodegenerative diseases.
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Affiliation(s)
- Xiao-Lan Wang
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Lianjian Li
- Department of Surgery, Hubei Provincial Hospital of Traditional Chinese Medicine, Wuhan, China.,Hubei Province Academy of Traditional Chinese Medicine, Wuhan, China
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28
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The role of clock genes in sleep, stress and memory. Biochem Pharmacol 2021; 191:114493. [DOI: 10.1016/j.bcp.2021.114493] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 02/22/2021] [Accepted: 02/23/2021] [Indexed: 12/23/2022]
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29
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Börner JH, Rawashdeh O, Rami A. Exacerbated Age-Related Hippocampal Alterations of Microglia Morphology, β-Amyloid and Lipofuscin Deposition and Presenilin Overexpression in Per1-/--Mice. Antioxidants (Basel) 2021; 10:antiox10091330. [PMID: 34572962 PMCID: PMC8469021 DOI: 10.3390/antiox10091330] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 08/16/2021] [Accepted: 08/16/2021] [Indexed: 12/17/2022] Open
Abstract
In humans, alterations of circadian rhythms and autophagy are linked to metabolic, cardiovascular and neurological dysfunction. Autophagy constitutes a specific form of cell recycling in many eukaryotic cells. Aging is the principal risk factor for the development of neurodegenerative diseases. Thus, we assume that both the circadian clock and autophagy are indispensable to counteract aging. We have previously shown that the hippocampus of Per1−/−-mice exhibits a reduced autophagy and higher neuronal susceptibility to ischemic insults compared to wild type (WT). Therefore, we chose to study the link between aging and loss of clock gene Per1−/−-mice. Young and aged C3H- and Per1−/−-mice were used as models to analyze the hippocampal distribution of Aβ42, lipofuscin, presenilin, microglia, synaptophysin and doublecortin. We detected several changes in the hippocampus of aged Per1−/−-mice compared to their wild type littermates. Our results show significant alterations of microglia morphology, an increase in Aβ42 deposition, overexpression of presenilin, decrease in synaptophysin levels and massive accumulation of lipofuscin in the hippocampus of 24-month-old Per1−/−-mice, without alteration of adult neurogenesis. We suggest that the marked lipofuscin accumulation, Aβ42 deposition, and overexpression of presenilin-2 observed in our experiments may be some of the consequences of the slowed autophagy in the hippocampus of aged Per1−/−-mice. This may lead during aging to excessive accumulation of misfolded proteins which may, consequently, result in higher neuronal vulnerability.
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Affiliation(s)
- Jan Hendrik Börner
- Institut für Experimentelle Neurobiologie (Anatomie II), Klinikum der Johann Wolfgang von Goethe-Universität, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany;
| | - Oliver Rawashdeh
- Chronobiology & Sleep Lab, Faculty of Medicine, School of Biomedical Sciences, The University of Queensland Brisbane, Brisbane 4072, Australia;
| | - Abdelhaq Rami
- Institut für Experimentelle Neurobiologie (Anatomie II), Klinikum der Johann Wolfgang von Goethe-Universität, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany;
- Correspondence:
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30
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Ni RJ, Shu YM, Luo PH, Zhou JN. Whole-brain mapping of afferent projections to the suprachiasmatic nucleus of the tree shrew. Tissue Cell 2021; 73:101620. [PMID: 34411776 DOI: 10.1016/j.tice.2021.101620] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 08/04/2021] [Accepted: 08/07/2021] [Indexed: 02/07/2023]
Abstract
The suprachiasmatic nucleus (SCN) is essential for the neural control of mammalian circadian timing system. The circadian activity of the SCN is modulated by its afferent projections. In the present study, we examine neuroanatomical characteristics and afferent projections of the SCN in the tree shrew (Tupaia belangeri chinensis) using immunocytochemistry and retrograde tracer Fluoro-Gold (FG). Distribution of the vasoactive intestinal peptide was present in the SCN from rostral to caudal, especially concentrated in its ventral part. FG-labeled neurons were observed in the lateral septal nucleus, septofimbrial nucleus, paraventricular thalamic nucleus, posterior hypothalamic nucleus, posterior complex of the thalamus, ventral subiculum, rostral linear nucleus of the raphe, periaqueductal gray, mesencephalic reticular formation, dorsal raphe nucleus, pedunculopontine tegmental nucleus, medial parabrachial nucleus, locus coeruleus, parvicellular reticular nucleus, intermediate reticular nucleus, and ventrolateral reticular nucleus. In summary, the morphology of the SCN in tree shrews is described from rostral to caudal. In addition, our data demonstrate for the first time that the SCN in tree shrews receives inputs from numerous brain regions in the telencephalon, diencephalon, mesencephalon, metencephalon, and myelencephalon. This comprehensive knowledge of the afferent projections of the SCN in tree shrews provides further insights into the neural organization and physiological processes of circadian rhythms.
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Affiliation(s)
- Rong-Jun Ni
- Psychiatric Laboratory and Mental Health Center, West China Hospital of Sichuan University, Chengdu, 610041, China; Huaxi Brain Research Center, West China Hospital of Sichuan University, Chengdu, 610041, China.
| | - Yu-Mian Shu
- School of Architecture and Civil Engineering, Chengdu University, Chengdu, 610041, China
| | - Peng-Hao Luo
- Chinese Academy of Science Key Laboratory of Brain Function and Diseases, School of Life Sciences, University of Science and Technology of China, Hefei, 230027, China
| | - Jiang-Ning Zhou
- Chinese Academy of Science Key Laboratory of Brain Function and Diseases, School of Life Sciences, University of Science and Technology of China, Hefei, 230027, China
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31
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Fusilier AR, Davis JA, Paul JR, Yates SD, McMeekin LJ, Goode LK, Mokashi MV, Remiszewski N, van Groen T, Cowell RM, McMahon LL, Roberson ED, Gamble KL. Dysregulated clock gene expression and abnormal diurnal regulation of hippocampal inhibitory transmission and spatial memory in amyloid precursor protein transgenic mice. Neurobiol Dis 2021; 158:105454. [PMID: 34333153 PMCID: PMC8477442 DOI: 10.1016/j.nbd.2021.105454] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 07/19/2021] [Accepted: 07/27/2021] [Indexed: 11/27/2022] Open
Abstract
Patients with Alzheimer's disease (AD) often have fragmentation of sleep/wake cycles and disrupted 24-h (circadian) activity. Despite this, little work has investigated the potential underlying day/night disruptions in cognition and neuronal physiology in the hippocampus. The molecular clock, an intrinsic transcription-translation feedback loop that regulates circadian behavior, may also regulate hippocampal neurophysiological activity. We hypothesized that disrupted diurnal variation in clock gene expression in the hippocampus corresponds with loss of normal day/night differences in membrane excitability, synaptic physiology, and cognition. We previously reported disrupted circadian locomotor rhythms and neurophysiological output of the suprachiasmatic nucleus (the primary circadian clock) in Tg-SwDI mice with human amyloid-beta precursor protein mutations. Here, we report that Tg-SwDI mice failed to show day/night differences in a spatial working memory task, unlike wild-type controls that exhibited enhanced spatial working memory at night. Moreover, Tg-SwDI mice had lower levels of Per2, one of the core components of the molecular clock, at both mRNA and protein levels when compared to age-matched controls. Interestingly, we discovered neurophysiological impairments in area CA1 of the Tg-SwDI hippocampus. In controls, spontaneous inhibitory post-synaptic currents (sIPSCs) in pyramidal cells showed greater amplitude and lower inter-event interval during the day than the night. However, the normal day/night differences in sIPSCs were absent (amplitude) or reversed (inter-event interval) in pyramidal cells from Tg-SwDI mice. In control mice, current injection into CA1 pyramidal cells produced more firing during the night than during the day, but no day/night difference in excitability was observed in Tg-SwDI mice. The normal day/night difference in excitability in controls was blocked by GABA receptor inhibition. Together, these results demonstrate that the normal diurnal regulation of inhibitory transmission in the hippocampus is diminished in a mouse model of AD, leading to decreased daytime inhibition onto hippocampal CA1 pyramidal cells. Uncovering disrupted day/night differences in circadian gene regulation, hippocampal physiology, and memory in AD mouse models may provide insight into possible chronotherapeutic strategies to ameliorate Alzheimer's disease symptoms or delay pathological onset.
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Affiliation(s)
- Allison R Fusilier
- Department of Psychiatry and Behavioral Neurobiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Jennifer A Davis
- Department of Psychiatry and Behavioral Neurobiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Jodi R Paul
- Department of Psychiatry and Behavioral Neurobiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Stefani D Yates
- Department of Psychiatry and Behavioral Neurobiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Laura J McMeekin
- Department of Cell, Developmental, & Integrative Biology, University of Alabama at Birmingham, Birmingham, AL, USA; Department of Neuroscience, Southern Research, Birmingham, AL 35205, USA
| | - Lacy K Goode
- Department of Psychiatry and Behavioral Neurobiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Mugdha V Mokashi
- Department of Psychiatry and Behavioral Neurobiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Natalie Remiszewski
- Department of Psychiatry and Behavioral Neurobiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Thomas van Groen
- Department of Cell, Developmental, & Integrative Biology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Rita M Cowell
- Department of Cell, Developmental, & Integrative Biology, University of Alabama at Birmingham, Birmingham, AL, USA; Department of Neuroscience, Southern Research, Birmingham, AL 35205, USA
| | - Lori L McMahon
- Department of Cell, Developmental, & Integrative Biology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Erik D Roberson
- Center for Neurodegeneration and Experimental Therapeutics, Alzheimer's Disease Center, Evelyn F. McKnight Brain Institute, Departments of Neurology and Neurobiology, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Karen L Gamble
- Department of Psychiatry and Behavioral Neurobiology, University of Alabama at Birmingham, Birmingham, AL, USA.
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32
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Time-restricted feeding rescues high-fat-diet-induced hippocampal impairment. iScience 2021; 24:102532. [PMID: 34142043 PMCID: PMC8188491 DOI: 10.1016/j.isci.2021.102532] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 02/26/2021] [Accepted: 05/10/2021] [Indexed: 11/23/2022] Open
Abstract
Feeding rodents a high-fat diet (HFD) disrupts normal behavioral rhythms, particularly meal timing. Within the brain, mistimed feeding shifts molecular rhythms in the hippocampus and impairs memory. We hypothesize that altered meal timing induced by an HFD leads to cognitive impairment and that restricting HFD access to the "active period" (i.e., night) rescues the normal hippocampal function. In male mice, ad-lib access to an HFD for 20 weeks increased body weight and fat mass, increased daytime meal consumption, reduced hippocampal long-term potentiation (LTP), and eliminated day/night differences in spatial working memory. Importantly, two weeks of time-restricted feeding (TRF) at the end of the chronic HFD protocol rescued spatial working memory and restored LTP magnitude, even though there was no change in body composition and total daily caloric intake. These findings suggest that short-term TRF is an effective mechanism for rescuing HFD-induced impaired cognition and hippocampal function.
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Deciphering the Interacting Mechanisms of Circadian Disruption and Alzheimer's Disease. Neurochem Res 2021; 46:1603-1617. [PMID: 33871799 DOI: 10.1007/s11064-021-03325-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 03/21/2021] [Accepted: 04/09/2021] [Indexed: 12/29/2022]
Abstract
Alzheimer's disease (AD) is one of the crucial causative factors for progressive dementia. Neuropathologically, AD is characterized by the extracellular accumulation of amyloid beta plaques and intracellular neurofibrillary tangles in cortical and limbic regions of the human brain. The circadian system is one of the many affected physiological processes in AD, the dysfunction of which may reflect in the irregularity of the sleep/wake cycle. The interplay of circadian and sleep disturbances inducing AD progression is bidirectional. Sleep-associated pathological alterations are frequently evident in AD. Understanding the interrelation between circadian disruption and AD may allow for earlier identification of AD pathogenesis as well as better suited approaches and potential therapies to combat dementia. In this article, we examine the existing literature related to the molecular mechanisms of the circadian clock and interacting mechanisms of circadian disruption and AD pathogenesis.
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Lehr AB, McDonald RJ, Thorpe CM, Tetzlaff C, Deibel SH. A local circadian clock for memory? Neurosci Biobehav Rev 2021; 127:946-957. [PMID: 33476672 DOI: 10.1016/j.neubiorev.2020.11.032] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Revised: 11/20/2020] [Accepted: 11/30/2020] [Indexed: 12/20/2022]
Abstract
The master clock, suprachiasmatic nucleus, is believed to control peripheral circadian oscillators throughout the brain and body. However, recent data suggest there is a circadian clock involved in learning and memory, potentially housed in the hippocampus, which is capable of acting independently of the master clock. Curiously, the hippocampal clock appears to be influenced by the master clock and by hippocampal dependent learning, while under certain conditions it may also revert to its endogenous circadian rhythm. Here we propose a mechanism by which the hippocampal clock could locally determine the nature of its entrainment. We introduce a novel theoretical framework, inspired by but extending beyond the hippocampal memory clock, which provides a new perspective on how circadian clocks throughout the brain coordinate their rhythms. Importantly, a local clock for memory would suggest that hippocampal-dependent learning at the same time every day should improve memory, opening up a range of possibilities for non-invasive therapies to alleviate the detrimental effects of circadian rhythm disruption on human health.
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Affiliation(s)
- Andrew B Lehr
- Department of Computational Neuroscience, University of Göttingen, Germany; Bernstein Center for Computational Neuroscience, University of Göttingen, Germany
| | | | | | - Christian Tetzlaff
- Department of Computational Neuroscience, University of Göttingen, Germany; Bernstein Center for Computational Neuroscience, University of Göttingen, Germany
| | - Scott H Deibel
- Department of Psychology, Memorial University of Newfoundland, Canada.
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Brancaccio M, Wolfes AC, Ness N. Astrocyte Circadian Timekeeping in Brain Health and Neurodegeneration. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1344:87-110. [PMID: 34773228 DOI: 10.1007/978-3-030-81147-1_6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Marco Brancaccio
- Department of Brain Sciences, Division of Neuroscience, Imperial College London, London, UK.
- UK Dementia Research Institute at Imperial College London, London, UK.
| | - Anne C Wolfes
- Department of Brain Sciences, Division of Neuroscience, Imperial College London, London, UK
- UK Dementia Research Institute at Imperial College London, London, UK
| | - Natalie Ness
- Department of Brain Sciences, Division of Neuroscience, Imperial College London, London, UK
- UK Dementia Research Institute at Imperial College London, London, UK
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Sharma A, Sethi G, Tambuwala MM, Aljabali AAA, Chellappan DK, Dua K, Goyal R. Circadian Rhythm Disruption and Alzheimer's Disease: The Dynamics of a Vicious Cycle. Curr Neuropharmacol 2020; 19:248-264. [PMID: 32348224 PMCID: PMC8033974 DOI: 10.2174/1570159x18666200429013041] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 04/06/2020] [Accepted: 04/24/2020] [Indexed: 12/13/2022] Open
Abstract
All mammalian cells exhibit circadian rhythm in cellular metabolism and energetics. Autonomous cellular clocks are modulated by various pathways that are essential for robust time keeping. In addition to the canonical transcriptional translational feedback loop, several new pathways of circadian timekeeping - non-transcriptional oscillations, post-translational modifications, epigenetics and cellular signaling in the circadian clock - have been identified. The physiology of circadian rhythm is expansive, and its link to the neurodegeneration is multifactorial. Circadian rhythm disruption is prevelant in contamporary society where light-noise, shift-work, and transmeridian travel are commonplace, and is also reported from the early stages of Alzheimer's disease (AD). Circadian alignment by bright light therapy in conjunction with chronobiotics is beneficial for treating sundowning syndrome and other cognitive symptoms in advanced AD patients. We performed a comprehensive analysis of the clinical and translational reports to review the physiology of the circadian clock, delineate its dysfunction in AD, and unravel the dynamics of the vicious cycle between two pathologies. The review delineates the role of putative targets like clock proteins PER, CLOCK, BMAL1, ROR, and clock-controlled proteins like AVP, SIRT1, FOXO, and PK2 towards future approaches for management of AD. Furthermore, the role of circadian rhythm disruption in aging is delineated.
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Affiliation(s)
- Ashish Sharma
- Neuropharmacology Laboratory, School of Pharmaceutical Sciences, Shoolini University, Solan 173 212, Himachal Pradesh, India
| | - Gautam Sethi
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Medical Drive, 117 600, Singapore
| | - Murtaza M Tambuwala
- School of Pharmacy and Pharmaceutical Sciences, Ulster University, Coleraine, County, Londonderry, BT52 1SA, Northern Ireland, United Kingdom
| | - Alaa A A Aljabali
- Faculty of Pharmacy, Department of Pharmaceutical Sciences, Yarmouk University, Irbid 21163, Jordan
| | - Dinesh Kumar Chellappan
- Department of Life Sciences, School of Pharmacy, International Medical University, Bukit Jalil, Kuala Lumpur, 57000, Malaysia
| | - Kamal Dua
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Ultimo, NSW, 2007, Australia
| | - Rohit Goyal
- Neuropharmacology Laboratory, School of Pharmaceutical Sciences, Shoolini University, Solan 173 212, Himachal Pradesh, India
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Lyons LC, Chatterjee S, Vanrobaeys Y, Gaine ME, Abel T. Translational changes induced by acute sleep deprivation uncovered by TRAP-Seq. Mol Brain 2020; 13:165. [PMID: 33272296 PMCID: PMC7713217 DOI: 10.1186/s13041-020-00702-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [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: 11/17/2020] [Indexed: 12/14/2022] Open
Abstract
Sleep deprivation is a global health problem adversely affecting health as well as causing decrements in learning and performance. Sleep deprivation induces significant changes in gene transcription in many brain regions, with the hippocampus particularly susceptible to acute sleep deprivation. However, less is known about the impacts of sleep deprivation on post-transcriptional gene regulation. To identify the effects of sleep deprivation on the translatome, we took advantage of the RiboTag mouse line to express HA-labeled Rpl22 in CaMKIIα neurons to selectively isolate and sequence mRNA transcripts associated with ribosomes in excitatory neurons. We found 198 differentially expressed genes in the ribosome-associated mRNA subset after sleep deprivation. In comparison with previously published data on gene expression in the hippocampus after sleep deprivation, we found that the subset of genes affected by sleep deprivation was considerably different in the translatome compared with the transcriptome, with only 49 genes regulated similarly. Interestingly, we found 478 genes differentially regulated by sleep deprivation in the transcriptome that were not significantly regulated in the translatome of excitatory neurons. Conversely, there were 149 genes differentially regulated by sleep deprivation in the translatome but not in the whole transcriptome. Pathway analysis revealed differences in the biological functions of genes exclusively regulated in the transcriptome or translatome, with protein deacetylase activity and small GTPase binding regulated in the transcriptome and unfolded protein binding, kinase inhibitor activity, neurotransmitter receptors and circadian rhythms regulated in the translatome. These results indicate that sleep deprivation induces significant changes affecting the pool of actively translated mRNAs.
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Affiliation(s)
- Lisa C Lyons
- Department of Neuroscience and Pharmacology, Iowa Neuroscience Institute, Carver College of Medicine, University of Iowa, Iowa City, IA, USA.
- Program in Neuroscience, Department of Biological Science, Florida State University, Tallahassee, FL, USA.
| | - Snehajyoti Chatterjee
- Department of Neuroscience and Pharmacology, Iowa Neuroscience Institute, Carver College of Medicine, University of Iowa, Iowa City, IA, USA
| | - Yann Vanrobaeys
- Department of Neuroscience and Pharmacology, Iowa Neuroscience Institute, Carver College of Medicine, University of Iowa, Iowa City, IA, USA
| | - Marie E Gaine
- Department of Neuroscience and Pharmacology, Iowa Neuroscience Institute, Carver College of Medicine, University of Iowa, Iowa City, IA, USA
- Department of Pharmaceutical Sciences and Experimental Therapeutics (PSET), College of Pharmacy, University of Iowa, Iowa City, IA, USA
| | - Ted Abel
- Department of Neuroscience and Pharmacology, Iowa Neuroscience Institute, Carver College of Medicine, University of Iowa, Iowa City, IA, USA
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Davis JA, Paul JR, McMeekin LJ, Nason SR, Antipenko JP, Yates SD, Cowell RM, Habegger KM, Gamble KL. High-Fat and High-Sucrose Diets Impair Time-of-Day Differences in Spatial Working Memory of Male Mice. Obesity (Silver Spring) 2020; 28:2347-2356. [PMID: 33043637 PMCID: PMC7686286 DOI: 10.1002/oby.22983] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 07/10/2020] [Accepted: 07/16/2020] [Indexed: 11/10/2022]
Abstract
OBJECTIVE This study aimed to investigate both the long-term and short-term impacts of high-fat diets (HFD) or high-sucrose diets (HSD) on the normal diurnal pattern of cognitive function, protein expression, and the molecular clock in mice. METHODS This study used both 6-month and 4-week feeding strategies by providing male C57BL/6J mice access to either a standard chow, HFD, or HSD. Spatial working memory and synaptic plasticity were assessed both day and night, and hippocampal tissue was measured for changes in NMDA and AMPA receptor subunits (GluN2B, GluA1), as well as molecular clock gene expression. RESULTS HFD and HSD both disrupted normal day/night fluctuations in spatial working memory and synaptic plasticity. Mice fed HFD altered their food intake to consume more calories during the day. Both diets disrupted normal hippocampal clock gene expression, and HFD reduced GluN2B levels in hippocampal tissue. CONCLUSIONS Taken together, these results suggest that both HFD and HSD induce a loss of day/night performance in spatial working memory and synaptic plasticity as well as trigger a cascade of changes that include disruption to the hippocampal molecular clock.
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Affiliation(s)
- Jennifer A. Davis
- Department of Psychiatry and Behavioral Neurobiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Jodi R. Paul
- Department of Psychiatry and Behavioral Neurobiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | | | - Shelly R. Nason
- Department of Medicine, Division of Endocrinology, Diabetes& Metabolism, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Jessica P. Antipenko
- Department of Medicine, Division of Endocrinology, Diabetes& Metabolism, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Stefani D. Yates
- Department of Psychiatry and Behavioral Neurobiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Rita M. Cowell
- Department of Neuroscience, Southern Research, Birmingham, AL
- Department of Cell, Developmental, and Integrative Biology, University of Alabama at Birmingham, Birmingham, AL
| | - Kirk M. Habegger
- Department of Medicine, Division of Endocrinology, Diabetes& Metabolism, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Karen L. Gamble
- Department of Psychiatry and Behavioral Neurobiology, University of Alabama at Birmingham, Birmingham, AL, USA
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Flyer-Adams JG, Rivera-Rodriguez EJ, Yu J, Mardovin JD, Reed ML, Griffith LC. Regulation of Olfactory Associative Memory by the Circadian Clock Output Signal Pigment-Dispersing Factor (PDF). J Neurosci 2020; 40:9066-9077. [PMID: 33106351 PMCID: PMC7673005 DOI: 10.1523/jneurosci.0782-20.2020] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Revised: 08/10/2020] [Accepted: 09/07/2020] [Indexed: 01/19/2023] Open
Abstract
Dissociation between the output of the circadian clock and external environmental cues is a major cause of human cognitive dysfunction. While the effects of ablation of the molecular clock on memory have been studied in many systems, little has been done to test the role of specific clock circuit output signals. To address this gap, we examined the effects of mutations of Pigment-dispersing factor (Pdf) and its receptor, Pdfr, on associative memory in male and female Drosophila Loss of PDF signaling significantly decreases the ability to form associative memory. Appetitive short-term memory (STM), which in wild-type (WT) is time-of-day (TOD) independent, is decreased across the day by mutation of Pdf or Pdfr, but more substantially in the morning than in the evening. This defect is because of PDFR expression in adult neurons outside the core clock circuit and the mushroom body (MB) Kenyon cells (KCs). The acquisition of a TOD difference in mutants implies the existence of multiple oscillators that act to normalize memory formation across the day for appetitive processes. Interestingly, aversive STM requires PDF but not PDFR, suggesting that there are valence-specific pathways downstream of PDF that regulate memory formation. These data argue that the circadian clock uses circuit-specific and molecularly diverse output pathways to enhance the ability of animals to optimize responses to changing conditions.SIGNIFICANCE STATEMENT From humans to invertebrates, cognitive processes are influenced by organisms' internal circadian clocks, the pace of which is linked to the solar cycle. Disruption of this link is increasingly common (e.g., jetlag, social jetlag disorders) and causes cognitive impairments that are costly and long lasting. A detailed understanding of how the internal clock regulates cognition is critical for the development of therapeutic methods. Here, we show for the first time that olfactory associative memory in Drosophila requires signaling by Pigment-dispersing factor (PDF), a neuromodulatory signaling peptide produced only by circadian clock circuit neurons. We also find a novel role for the clock circuit in stabilizing appetitive sucrose/odor memory across the day.
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Affiliation(s)
- Johanna G Flyer-Adams
- Department of Biology, Volen National Center for Complex Systems, Brandeis University, Waltham, Massachusetts 02454-9110
| | - Emmanuel J Rivera-Rodriguez
- Department of Biology, Volen National Center for Complex Systems, Brandeis University, Waltham, Massachusetts 02454-9110
| | - Junwei Yu
- Department of Biology, Volen National Center for Complex Systems, Brandeis University, Waltham, Massachusetts 02454-9110
| | - Jacob D Mardovin
- Department of Biology, Volen National Center for Complex Systems, Brandeis University, Waltham, Massachusetts 02454-9110
| | - Martha L Reed
- Department of Biology, Volen National Center for Complex Systems, Brandeis University, Waltham, Massachusetts 02454-9110
| | - Leslie C Griffith
- Department of Biology, Volen National Center for Complex Systems, Brandeis University, Waltham, Massachusetts 02454-9110
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40
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Hartsock MJ, Spencer RL. Memory and the circadian system: Identifying candidate mechanisms by which local clocks in the brain may regulate synaptic plasticity. Neurosci Biobehav Rev 2020; 118:134-162. [PMID: 32712278 DOI: 10.1016/j.neubiorev.2020.07.023] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 07/14/2020] [Accepted: 07/18/2020] [Indexed: 12/11/2022]
Abstract
The circadian system is an endogenous biological network responsible for coordinating near-24-h cycles in behavior and physiology with daily timing cues from the external environment. In this review, we explore how the circadian system regulates memory formation, retention, and recall. Circadian rhythms in these memory processes may arise through several endogenous pathways, and recent work highlights the importance of genetic timekeepers found locally within tissues, called local clocks. We evaluate the circadian memory literature for evidence of local clock involvement in memory, identifying potential nodes for direct interactions between local clock components and mechanisms of synaptic plasticity. Our discussion illustrates how local clocks may pervasively modulate neuronal plastic capacity, a phenomenon that we designate here as circadian metaplasticity. We suggest that this function of local clocks supports the temporal optimization of memory processes, illuminating the potential for circadian therapeutic strategies in the prevention and treatment of memory impairment.
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Affiliation(s)
- Matthew J Hartsock
- Department of Psychology and Neuroscience, University of Colorado Boulder, Boulder, Colorado 80309, United States.
| | - Robert L Spencer
- Department of Psychology and Neuroscience, University of Colorado Boulder, Boulder, Colorado 80309, United States.
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41
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Long-term exposure to constant light induces dementia, oxidative stress and promotes aggregation of sub-pathological Aβ42 in Wistar rats. Pharmacol Biochem Behav 2020; 192:172892. [DOI: 10.1016/j.pbb.2020.172892] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 03/02/2020] [Accepted: 03/02/2020] [Indexed: 12/17/2022]
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Begemann K, Neumann A, Oster H. Regulation and function of extra-SCN circadian oscillators in the brain. Acta Physiol (Oxf) 2020; 229:e13446. [PMID: 31965726 DOI: 10.1111/apha.13446] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 01/14/2020] [Accepted: 01/16/2020] [Indexed: 12/12/2022]
Abstract
Most organisms evolved endogenous, so called circadian clocks as internal timekeeping mechanisms allowing them to adapt to recurring changes in environmental demands brought about by 24-hour rhythms such as the light-dark cycle, temperature variations or changes in humidity. The mammalian circadian clock system is based on cellular oscillators found in all tissues of the body that are organized in a hierarchical fashion. A master pacemaker located in the suprachiasmatic nucleus (SCN) synchronizes peripheral tissue clocks and extra-SCN oscillators in the brain with each other and with external time. Different time cues (so called Zeitgebers) such as light, food intake, activity and hormonal signals reset the clock system through the SCN or by direct action at the tissue clock level. While most studies on non-SCN clocks so far have focused on peripheral tissues, several extra-SCN central oscillators were characterized in terms of circadian rhythm regulation and output. Some of them are directly innervated by the SCN pacemaker, while others receive indirect input from the SCN via other neural circuits or extra-brain structures. The specific physiological function of these non-SCN brain oscillators as well as their role in the regulation of the circadian clock network remains understudied. In this review we summarize our current knowledge about the regulation and function of extra-SCN circadian oscillators in different brain regions and devise experimental approaches enabling us to unravel the organization of the circadian clock network in the central nervous system.
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Affiliation(s)
| | | | - Henrik Oster
- Institute of Neurobiology University of Lübeck Lübeck Germany
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43
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Okauchi H, Higo-Yamamoto S, Sowa T, Oike H, Yamamoto S, Wada N, Sakamoto K, Oishi K. Chronically skipping breakfast impairs hippocampal memory-related gene expression and memory function accompanied by reduced wakefulness and body temperature in mice. Biochem Biophys Res Commun 2020; 524:129-134. [DOI: 10.1016/j.bbrc.2020.01.077] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 01/13/2020] [Indexed: 01/07/2023]
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Newman AW, Deibel SH, Lewis LM, Viguers KB, Thorpe CM. Brief circadian rhythm disruption does not impair hippocampal dependent memory when rats are over-trained and given more re-entrainment days. LEARNING AND MOTIVATION 2020. [DOI: 10.1016/j.lmot.2020.101613] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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45
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Hulme B, Didikoglu A, Bradburn S, Robinson A, Canal M, Payton A, Pendleton N, Murgatroyd C. Epigenetic Regulation of BMAL1 with Sleep Disturbances and Alzheimer's Disease. J Alzheimers Dis 2020; 77:1783-1792. [PMID: 32925059 DOI: 10.3233/jad-200634] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
BACKGROUND An early symptom of Alzheimer's disease (AD) is a disturbance of the circadian rhythm that is associated with disrupted sleep/wake cycles. OBJECTIVE To investigate if BMAL1, a key gene that drives the circadian cycle, is epigenetically regulated in brains in relation to longitudinal changes in cognition, sleep quality, and AD neuropathology. METHODS Frontal cortex tissues were acquired from the Manchester Brain Bank (N = 96). DNA methylation at six CpG sites at the promoter of BMAL1, determined using bisulfite pyrosequencing, was tested for associations with Braak stage, CERAD score and Thal phase, longitudinal changes in cognition, sleep measurements and cross-section measures of depressive symptoms (BDI score). RESULTS Methylation across all the CpGs strongly correlated with each other. We found increased CpG2 methylation with higher Braak (t(92), p = 0.015) and CERAD (t(94), p = 0.044) stages. No significance was found between longitudinal fluid intelligence, processing speed and memory tests, but methylation at CpG1 (r = 0.20, p = 0.05) and CpG4 (r = 0.20, p = 0.05) positively correlated with vocabulary. CpG2 positively correlated with cross-sectional fluid intelligence (r = 0.20 p = 0.05) and vocabulary (r = 0.22 p = 0.03). Though longitudinal analysis revealed no significance between sleep duration, midsleep and efficiency for any of the CpG sites, CpG3 (B = 0.03, 95% CI, p = 0.03) and CpG5 (B = 0.04, 95% CI, p = 0.01) significantly correlated with night wake. CpG4 correlated with depressive symptoms (B = -0.27, 95% CI, p = 0.02). CONCLUSION Methylation of BMAL1 associated with tau pathology, changes in cognitive measures, a measure of sleep and depressive symptoms, suggesting an involvement of the circadian cycle.
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Affiliation(s)
- Bethany Hulme
- Department of Life Sciences, Manchester Metropolitan University, Manchester, United Kingdom
| | - Altug Didikoglu
- Faculty of Biology, Medicine and Health, School of Biological Sciences, Division of Neuroscience and Experimental Psychology, University of Manchester, Manchester, United Kingdom
| | - Steven Bradburn
- Department of Life Sciences, Manchester Metropolitan University, Manchester, United Kingdom
| | - Andrew Robinson
- Faculty of Biology, Medicine and Health, School of Biological Sciences, Division of Neuroscience and Experimental Psychology, University of Manchester, Manchester, United Kingdom
| | - Maria Canal
- Faculty of Biology, Medicine and Health, School of Biological Sciences, Division of Neuroscience and Experimental Psychology, University of Manchester, Manchester, United Kingdom
| | - Antony Payton
- Division of Informatics, Imaging and Data Sciences, School of Health Sciences, The University of Manchester, Manchester, United Kingdom
| | - Neil Pendleton
- Faculty of Biology, Medicine and Health, School of Biological Sciences, Division of Neuroscience and Experimental Psychology, University of Manchester, Manchester, United Kingdom
| | - Chris Murgatroyd
- Department of Life Sciences, Manchester Metropolitan University, Manchester, United Kingdom
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Sawicka K, Hale CR, Park CY, Fak JJ, Gresack JE, Van Driesche SJ, Kang JJ, Darnell JC, Darnell RB. FMRP has a cell-type-specific role in CA1 pyramidal neurons to regulate autism-related transcripts and circadian memory. eLife 2019; 8:e46919. [PMID: 31860442 PMCID: PMC6924960 DOI: 10.7554/elife.46919] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2019] [Accepted: 12/02/2019] [Indexed: 12/14/2022] Open
Abstract
Loss of the RNA binding protein FMRP causes Fragile X Syndrome (FXS), the most common cause of inherited intellectual disability, yet it is unknown how FMRP function varies across brain regions and cell types and how this contributes to disease pathophysiology. Here we use conditional tagging of FMRP and CLIP (FMRP cTag CLIP) to examine FMRP mRNA targets in hippocampal CA1 pyramidal neurons, a critical cell type for learning and memory relevant to FXS phenotypes. Integrating these data with analysis of ribosome-bound transcripts in these neurons revealed CA1-enriched binding of autism-relevant mRNAs, and CA1-specific regulation of transcripts encoding circadian proteins. This contrasted with different targets in cerebellar granule neurons, and was consistent with circadian defects in hippocampus-dependent memory in Fmr1 knockout mice. These findings demonstrate differential FMRP-dependent regulation of mRNAs across neuronal cell types that may contribute to phenotypes such as memory defects and sleep disturbance associated with FXS.
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Affiliation(s)
- Kirsty Sawicka
- Laboratory of Molecular Neuro-OncologyThe Rockefeller UniversityNew YorkUnited States
| | - Caryn R Hale
- Laboratory of Molecular Neuro-OncologyThe Rockefeller UniversityNew YorkUnited States
| | - Christopher Y Park
- Laboratory of Molecular Neuro-OncologyThe Rockefeller UniversityNew YorkUnited States
| | - John J Fak
- Laboratory of Molecular Neuro-OncologyThe Rockefeller UniversityNew YorkUnited States
| | - Jodi E Gresack
- Laboratory of Molecular and Cellular NeuroscienceThe Rockefeller UniversityNew YorkUnited States
| | - Sarah J Van Driesche
- Laboratory of Molecular Neuro-OncologyThe Rockefeller UniversityNew YorkUnited States
| | - Jin Joo Kang
- Laboratory of Molecular Neuro-OncologyThe Rockefeller UniversityNew YorkUnited States
| | - Jennifer C Darnell
- Laboratory of Molecular Neuro-OncologyThe Rockefeller UniversityNew YorkUnited States
| | - Robert B Darnell
- Laboratory of Molecular Neuro-OncologyThe Rockefeller UniversityNew YorkUnited States
- Howard Hughes Medical InstituteChevy ChaseUnited States
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Hasegawa S, Fukushima H, Hosoda H, Serita T, Ishikawa R, Rokukawa T, Kawahara-Miki R, Zhang Y, Ohta M, Okada S, Tanimizu T, Josselyn SA, Frankland PW, Kida S. Hippocampal clock regulates memory retrieval via Dopamine and PKA-induced GluA1 phosphorylation. Nat Commun 2019; 10:5766. [PMID: 31852900 PMCID: PMC6920429 DOI: 10.1038/s41467-019-13554-y] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 11/11/2019] [Indexed: 12/11/2022] Open
Abstract
Cognitive performance in people varies according to time-of-day, with memory retrieval declining in the late afternoon-early evening. However, functional roles of local brain circadian clocks in memory performance remains unclear. Here, we show that hippocampal clock controlled by the circadian-dependent transcription factor BMAL1 regulates time-of-day retrieval profile. Inducible transgenic dominant negative BMAL1 (dnBMAL1) expression in mouse forebrain or hippocampus disrupted retrieval of hippocampal memories at Zeitgeber Time 8-12, independently of retention delay, encoding time and Zeitgeber entrainment cue. This altered retrieval profile was associated with downregulation of hippocampal Dopamine-cAMP signaling in dnBMAL1 mice. These changes included decreases in Dopamine Receptors (D1-R and D5-R) and GluA1-S845 phosphorylation by PKA. Consistently, pharmacological activation of cAMP-signals or D1/5Rs rescued impaired retrieval in dnBMAL1 mice. Importantly, GluA1 S845A knock-in mice showed similar retrieval deficits with dnBMAL1 mice. Our findings suggest mechanisms underlying regulation of retrieval by hippocampal clock through D1/5R-cAMP-PKA-mediated GluA1 phosphorylation.
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Grants
- R01 MH119421 NIMH NIH HHS
- Grant-in-Aid for Scientific Research on Innovative Areas (17H05962).
- Grant-in-Aids for Scientific Research (A) (15H02488, 18H03944, 19H01047), Scientific Research (B) (23300120 and 20380078) and Challenging Exploratory Research (24650172, 26640014, 17K19464), Grant-in-Aids for Scientific Research on Priority Areas -Molecular Brain Science- (18022038 and 22022039), Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area) (24116008, 24116001, 23115716, 17H06084, 17H05961, 17H05581, 18H05428, 18H05434, 19H04917), MEXT-Supported Program for the Strategic Research Foundation at Private Universities (S1311017), Core Research for Evolutional Science and Technology (CREST), Japan, The Sumitomo Foundation, Japan and the Takeda Science Foundation, Japan, The Naito Foundation, The Uehara Memorial Foundation and The Science Research Promotion Fund, The Promotion and Mutual Aid Corporation for Private Schools of Japan.
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Affiliation(s)
- Shunsuke Hasegawa
- Department of Bioscience, Faculty of Applied Bioscience, Tokyo University of Agriculture, Tokyo, 156-8502, Japan
- CREST, Japan Science and Technology Agency, Saitama, 332-0012, Japan
| | - Hotaka Fukushima
- Department of Bioscience, Faculty of Applied Bioscience, Tokyo University of Agriculture, Tokyo, 156-8502, Japan
- CREST, Japan Science and Technology Agency, Saitama, 332-0012, Japan
| | - Hiroshi Hosoda
- Department of Bioscience, Faculty of Applied Bioscience, Tokyo University of Agriculture, Tokyo, 156-8502, Japan
| | - Tatsurou Serita
- Department of Bioscience, Faculty of Applied Bioscience, Tokyo University of Agriculture, Tokyo, 156-8502, Japan
| | - Rie Ishikawa
- Department of Bioscience, Faculty of Applied Bioscience, Tokyo University of Agriculture, Tokyo, 156-8502, Japan
- Graduate School of Agriculture and Life Sciences, The University of Tokyo, Tokyo, 113-8657, Japan
| | - Tomohiro Rokukawa
- Department of Bioscience, Faculty of Applied Bioscience, Tokyo University of Agriculture, Tokyo, 156-8502, Japan
| | - Ryouka Kawahara-Miki
- NODAI Genome Research Center, Tokyo University of Agriculture, Tokyo, 156-8502, Japan
| | - Yue Zhang
- Department of Bioscience, Faculty of Applied Bioscience, Tokyo University of Agriculture, Tokyo, 156-8502, Japan
- CREST, Japan Science and Technology Agency, Saitama, 332-0012, Japan
| | - Miho Ohta
- Department of Bioscience, Faculty of Applied Bioscience, Tokyo University of Agriculture, Tokyo, 156-8502, Japan
| | - Shintaro Okada
- Department of Bioscience, Faculty of Applied Bioscience, Tokyo University of Agriculture, Tokyo, 156-8502, Japan
| | - Toshiyuki Tanimizu
- Department of Bioscience, Faculty of Applied Bioscience, Tokyo University of Agriculture, Tokyo, 156-8502, Japan
| | - Sheena A Josselyn
- Department of Physiology, Faculty of Medicine, University of Toronto, Toronto, ON, M5S 1A8, Canada
- Program in Neurosciences and Mental Health, Hospital for Sick Children, Toronto, ON, Canada
| | - Paul W Frankland
- Department of Physiology, Faculty of Medicine, University of Toronto, Toronto, ON, M5S 1A8, Canada
- Program in Neurosciences and Mental Health, Hospital for Sick Children, Toronto, ON, Canada
| | - Satoshi Kida
- Department of Bioscience, Faculty of Applied Bioscience, Tokyo University of Agriculture, Tokyo, 156-8502, Japan.
- CREST, Japan Science and Technology Agency, Saitama, 332-0012, Japan.
- Graduate School of Agriculture and Life Sciences, The University of Tokyo, Tokyo, 113-8657, Japan.
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Effects of circadian rhythm disorder on the hippocampus of SHR and WKY rats. Neurobiol Learn Mem 2019; 168:107141. [PMID: 31857218 DOI: 10.1016/j.nlm.2019.107141] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Revised: 12/13/2019] [Accepted: 12/13/2019] [Indexed: 01/25/2023]
Abstract
The present study investigated the effects of circadian rhythm disorder (CRD) on the hippocampus of SHR and WKY rats. Male SHR rats (n = 27) and WKY rats (n = 27) were randomly divided into six groups: SHR and WKY normal (N)CR, SHR and WKY CRD 16/8 (CRD16/8), and SHR and WKY CRD 12/12 (CRD12/12). Activity patterns were adjusted using different photoperiods over 90 days and any changes were recorded. Rats were tested in the Morris water maze and in a novel object recognition experiment; serologic analysis, magnetic resonance imaging (diffusion tensor imaging + arterial spin labeling), hippocampal Nissl staining, Fluoro-Jade B staining, and immunohistochemistry were also performed. The results showed that both types of inverted photoperiod reduced CR amplitude and prolonged the circadian period. CRD and hypertension reduced memory performance and novel object recognition and preference. The decreases in memory and preference indices were greater in rats in the CRD12/12 group compared to the CRD16/8 group. CRD and hypertension decreased fractional anisotropy values, the number of neurons and astrocytes in the hippocampus, and the expression of brain-derived neurotrophic factor and synapsin 1; it also enhanced the degeneration of neurons and microglia and reduced blood flow in the hippocampus, and increased nuclear factor κB, caspase, neuron-specific enolase, and interleukin-6 levels. These findings reveal a biological basis for the link between CRD and cognitive decline, which has implications for CRD caused by shift work and other factors.
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Heller HC, Ruby NF. Functional Interactions Between Sleep and Circadian Rhythms in Learning and Learning Disabilities. Handb Exp Pharmacol 2019; 253:425-440. [PMID: 30443786 DOI: 10.1007/164_2018_176] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/13/2023]
Abstract
The propensity for sleep is timed by the circadian system. Many studies have shown that learning and memory performance is affected by circadian phase. And, of course it is well established that critical processes of memory consolidation occur during and depend on sleep. This chapter presents evidence that sleep and circadian rhythms do not just have separate influences on learning and memory that happen to coincide because of the circadian timing of sleep, but rather sleep and circadian systems have a critical functional interaction in the processes of memory consolidation. The evidence comes primarily from research on two models of learning disability: Down's syndrome model mice and Siberian hamsters. The Down's syndrome model mouse (Ts65Dn) has severe learning disability that has been shown to be due to GABAergic over-inhibition. Short-term, chronic therapies with GABAA antagonists restore learning ability in these mice long-term, but only if the antagonist treatments are given during the dark or sleep phase of the daily rhythm. The Siberian hamster is a model circadian animal except for the fact that a light treatment that gives the animal a phase advance on one day and a phase delay on the next day can result in total circadian arrhythmia for life. Once arrhythmic, the hamsters cannot learn. Learning, but not rhythmicity, is restored by short-term chronic treatment with GABA antagonists. Like many other species, if these hamsters are made arrhythmic by SCN lesion, their learning is unaffected. However, if made arrhythmic and learning disabled by the light treatment, subsequent lesions of their SCNs restore learning. SCN lesions also appear to restore learning in the Ts65Dn mice. The collective work on these two animal models of learning disability suggests that the circadian system modulates neuroplasticity. Our hypothesis is that a previously unrecognized function of the circadian system is to dampen neuroplasticity during the sleep phase to stabilize memory transcripts during their transfer to long-term memory. Thus, sleep and circadian systems have integrated roles to play in memory consolidation and do not just have separate but coincident influences on that process.
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Affiliation(s)
- H Craig Heller
- Biology Department, Stanford University, Stanford, CA, USA.
| | - Norman F Ruby
- Biology Department, Stanford University, Stanford, CA, USA
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50
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Barone I, Hawks-Mayer H, Lipton JO. Mechanisms of sleep and circadian ontogeny through the lens of neurodevelopmental disorders. Neurobiol Learn Mem 2019; 160:160-172. [DOI: 10.1016/j.nlm.2019.01.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 12/05/2018] [Accepted: 01/11/2019] [Indexed: 12/20/2022]
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