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Butler CT, Rodgers AM, Curtis AM, Donnelly RF. Chrono-tailored drug delivery systems: recent advances and future directions. Drug Deliv Transl Res 2024; 14:1756-1775. [PMID: 38416386 PMCID: PMC11153310 DOI: 10.1007/s13346-024-01539-4] [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] [Accepted: 02/07/2024] [Indexed: 02/29/2024]
Abstract
Circadian rhythms influence a range of biological processes within the body, with the central clock or suprachiasmatic nucleus (SCN) in the brain synchronising peripheral clocks around the body. These clocks are regulated by external cues, the most influential being the light/dark cycle, in order to synchronise with the external day. Chrono-tailored or circadian drug delivery systems (DDS) aim to optimise drug delivery by releasing drugs at specific times of day to align with circadian rhythms within the body. Although this approach is still relatively new, it has the potential to enhance drug efficacy, minimise side effects, and improve patient compliance. Chrono-tailored DDS have been explored and implemented in various conditions, including asthma, hypertension, and cancer. This review aims to introduce the biology of circadian rhythms and provide an overview of the current research on chrono-tailored DDS, with a particular focus on immunological applications and vaccination. Finally, we draw on some of the key challenges which need to be overcome for chrono-tailored DDS before they can be translated to more widespread use in clinical practice.
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Affiliation(s)
- Christine T Butler
- Curtis Clock Laboratory, School of Pharmacy and Biomolecular Sciences and Tissue Engineering Research Group (TERG), Royal College of Surgeons in Ireland RCSI, Dublin, Ireland
| | - Aoife M Rodgers
- The Wellcome Wolfson Institute for Experimental Medicine, Queen's University Belfast, 97 Lisburn Road, Belfast, BT9 7B, UK
| | - Annie M Curtis
- Curtis Clock Laboratory, School of Pharmacy and Biomolecular Sciences and Tissue Engineering Research Group (TERG), Royal College of Surgeons in Ireland RCSI, Dublin, Ireland.
| | - Ryan F Donnelly
- School of Pharmacy, Queen's University Belfast, Belfast, BT9 7BL, UK.
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2
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Yamaguchi Y. Arginine vasopressin: Critical regulator of circadian homeostasis. Peptides 2024; 177:171229. [PMID: 38663583 DOI: 10.1016/j.peptides.2024.171229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 04/19/2024] [Accepted: 04/22/2024] [Indexed: 04/30/2024]
Abstract
Circadian rhythms optimally regulate numerous physiological processes in an organism and synchronize them with the external environment. The suprachiasmatic nucleus (SCN), the center of the circadian clock in mammals, is composed of multiple cell types that form a network that provides the basis for the remarkable stability of the circadian clock. Among the neuropeptides expressed in the SCN, arginine vasopressin (AVP) has attracted much attention because of its deep involvement in the function of circadian rhythms, as elucidated in particular by studies using genetically engineered mice. This review briefly summarizes the current knowledge on the peptidergic distribution and topographic neuronal organization in the SCN, the molecular mechanisms of the clock genes, and the relationship between the SCN and peripheral clocks. With respect to the physiological roles of AVP and AVP-expressing neurons, in addition to a sex-dependent action of AVP in the SCN, studies using AVP receptor knockout mice and mice genetically manipulated to alter the clock properties of AVP neurons are summarized here, highlighting its importance in maintaining circadian homeostasis and its potential as a target for therapeutic interventions.
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Affiliation(s)
- Yoshiaki Yamaguchi
- Department of Life Science and Biotechnology, Faculty of Chemistry, Materials and Bioengineering, Kansai University, Suita, Japan.
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3
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Chen R, Zhang Z, Ma J, Liu B, Huang Z, Hu G, Huang J, Xu Y, Wang GZ. Circadian-driven tissue specificity is constrained under caloric restricted feeding conditions. Commun Biol 2024; 7:752. [PMID: 38902439 PMCID: PMC11190204 DOI: 10.1038/s42003-024-06421-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 06/06/2024] [Indexed: 06/22/2024] Open
Abstract
Tissue specificity is a fundamental property of an organ that affects numerous biological processes, including aging and longevity, and is regulated by the circadian clock. However, the distinction between circadian-affected tissue specificity and other tissue specificities remains poorly understood. Here, using multi-omics data on circadian rhythms in mice, we discovered that approximately 35% of tissue-specific genes are directly affected by circadian regulation. These circadian-affected tissue-specific genes have higher expression levels and are associated with metabolism in hepatocytes. They also exhibit specific features in long-reads sequencing data. Notably, these genes are associated with aging and longevity at both the gene level and at the network module level. The expression of these genes oscillates in response to caloric restricted feeding regimens, which have been demonstrated to promote longevity. In addition, aging and longevity genes are disrupted in various circadian disorders. Our study indicates that the modulation of circadian-affected tissue specificity is essential for understanding the circadian mechanisms that regulate aging and longevity at the genomic level.
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Affiliation(s)
- Renrui Chen
- CAS Key Laboratory of Computational Biology, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, 200031, China
| | - Ziang Zhang
- CAS Key Laboratory of Computational Biology, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, 200031, China
| | - Junjie Ma
- CAS Key Laboratory of Computational Biology, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, 200031, China
| | - Bing Liu
- Collaborative Innovation Center for Brain Science, Department of Anatomy and Physiology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Zhengyun Huang
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Cambridge-Su Genomic Resource Center, Medical School of Soochow University, Suzhou, Jiangsu, 215123, China
| | - Ganlu Hu
- Shanghai Institute for Advanced Immunochemical Studies, ShanghaiTech University, Shanghai, China
| | - Ju Huang
- Collaborative Innovation Center for Brain Science, Department of Anatomy and Physiology, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Ying Xu
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Cambridge-Su Genomic Resource Center, Medical School of Soochow University, Suzhou, Jiangsu, 215123, China
| | - Guang-Zhong Wang
- CAS Key Laboratory of Computational Biology, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, 200031, China.
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4
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Nian J, Lan W, Wang Z, Zhang X, Yao H, Zhang F. Exploring the metabolic implications of blue light exposure during daytime in rats. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 278:116436. [PMID: 38723383 DOI: 10.1016/j.ecoenv.2024.116436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 04/11/2024] [Accepted: 05/03/2024] [Indexed: 05/26/2024]
Abstract
Excessive exposure to light is a global issue. Artificial light pollution has been shown to disrupt the body's natural circadian rhythm. To investigate the impacts of light on metabolism, we studied Sprague-Dawley rats chronically exposed to red or blue light during daytime or nighttime. Rats in the experimental group were exposed to extended light for 4 hours during daytime or nighttime to simulate the effects of excessive light usage. Strikingly, we found systemic metabolic alterations only induced by blue light during daytime. Furthermore, we conducted metabolomic analyses of the cerebrospinal fluid, serum, heart, liver, spleen, adrenal, cerebellum, pituitary, prostate, spermatophore, hypothalamus and kidney from rats in the control and blue light exposure during daytime. Significant changes in metabolites have been observed in cerebrospinal fluid, serum, hypothalamus and kidney of rats exposed to blue light during daytime. Metabolic alterations observed in rats encompassing pyruvate metabolism, glutathione metabolism homocysteine degradation, phosphatidylethanolamine biosynthesis, and phospholipid biosynthesis, exhibit analogous patterns to those inherent in specific physiological processes, notably neurodevelopment, cellular injury, oxidative stress, and autophagic pathways. Our study provides insights into tissue-specific metabolic changes in rats exposed to blue light during the daytime and may help explain potential mechanisms of photopathogenesis.
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Affiliation(s)
- Jingjing Nian
- Key Laboratory of Gastrointestinal Cancer, Ministry of Education, School of Basic Medical Sciences, Fujian Medical University, Fuzhou 350122, PR China
| | - Wenning Lan
- Key Laboratory of Gastrointestinal Cancer, Ministry of Education, School of Basic Medical Sciences, Fujian Medical University, Fuzhou 350122, PR China
| | - Ziran Wang
- Key Laboratory of Gastrointestinal Cancer, Ministry of Education, School of Basic Medical Sciences, Fujian Medical University, Fuzhou 350122, PR China
| | - Xiaojing Zhang
- Key Laboratory of Gastrointestinal Cancer, Ministry of Education, School of Basic Medical Sciences, Fujian Medical University, Fuzhou 350122, PR China
| | - Hong Yao
- State Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, PR China
| | - Fangrong Zhang
- Key Laboratory of Gastrointestinal Cancer, Ministry of Education, School of Basic Medical Sciences, Fujian Medical University, Fuzhou 350122, PR China; Fujian Key Laboratory of Tumor Microbiology, Department of Medical Microbiology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, PR China.
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5
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Farag HI, Murphy BA, Templeman JR, Hanlon C, Joshua J, Koch TG, Niel L, Shoveller AK, Bedecarrats GY, Ellison A, Wilcockson D, Martino TA. One Health: Circadian Medicine Benefits Both Non-human Animals and Humans Alike. J Biol Rhythms 2024; 39:237-269. [PMID: 38379166 PMCID: PMC11141112 DOI: 10.1177/07487304241228021] [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: 02/22/2024]
Abstract
Circadian biology's impact on human physical health and its role in disease development and progression is widely recognized. The forefront of circadian rhythm research now focuses on translational applications to clinical medicine, aiming to enhance disease diagnosis, prognosis, and treatment responses. However, the field of circadian medicine has predominantly concentrated on human healthcare, neglecting its potential for transformative applications in veterinary medicine, thereby overlooking opportunities to improve non-human animal health and welfare. This review consists of three main sections. The first section focuses on the translational potential of circadian medicine into current industry practices of agricultural animals, with a particular emphasis on horses, broiler chickens, and laying hens. The second section delves into the potential applications of circadian medicine in small animal veterinary care, primarily focusing on our companion animals, namely dogs and cats. The final section explores emerging frontiers in circadian medicine, encompassing aquaculture, veterinary hospital care, and non-human animal welfare and concludes with the integration of One Health principles. In summary, circadian medicine represents a highly promising field of medicine that holds the potential to significantly enhance the clinical care and overall health of all animals, extending its impact beyond human healthcare.
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Affiliation(s)
- Hesham I. Farag
- Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
- Centre for Cardiovascular Investigations, University of Guelph, Guelph, ON, Canada
| | - Barbara A. Murphy
- School of Agriculture and Food Science, University College, Dublin, Ireland
| | - James R. Templeman
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada
| | - Charlene Hanlon
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada
- Department of Poultry Science, Auburn University, Auburn, Alabama, USA
| | - Jessica Joshua
- Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
| | - Thomas G. Koch
- Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
| | - Lee Niel
- Department of Pathobiology, University of Guelph, Guelph, ON, Canada
| | - Anna K. Shoveller
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada
| | | | - Amy Ellison
- School of Natural Sciences, Bangor University, Bangor, UK
| | - David Wilcockson
- Department of Life Sciences, Aberystwyth University, Aberystwyth, UK
| | - Tami A. Martino
- Department of Biomedical Sciences, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
- Centre for Cardiovascular Investigations, University of Guelph, Guelph, ON, Canada
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6
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Sheehan PW, Fass S, Sapkota D, Kang S, Hollis HC, Lawrence JH, Anafi RC, Dougherty JD, Fryer JD, Musiek ES. A glial circadian gene expression atlas reveals cell type and disease-specific reprogramming in response to amyloid pathology or aging. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.28.596297. [PMID: 38853870 PMCID: PMC11160685 DOI: 10.1101/2024.05.28.596297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2024]
Abstract
While circadian rhythm disruption may promote neurodegenerative disease, how aging and neurodegenerative pathology impact circadian gene expression patterns in different brain cell types is unknown. Here, we used translating ribosome affinity purification methods to define the circadian translatomes of astrocytes, microglia, and bulk cerebral cortex, in healthy mouse brain and in the settings of amyloid-beta plaque pathology or aging. Our data reveal that glial circadian translatomes are highly cell type-specific and exhibit profound, context-dependent reprogramming of rhythmic transcripts in response to amyloid pathology or aging. Transcripts involved in glial activation, immunometabolism, and proteostasis, as well as nearly half of all Alzheimer Disease (AD)-associated risk genes, displayed circadian oscillations, many of which were altered by pathology. Amyloid-related differential gene expression was also dependent on time of day. Thus, circadian rhythms in gene expression are cell- and context dependent and provide important insights into glial gene regulation in health, AD, and aging.
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Affiliation(s)
- Patrick W. Sheehan
- Department of Neurology, Washington University School of Medicine, Saint Louis MO, USA
| | - Stuart Fass
- Department of Genetics, Washington University School of Medicine, Saint Louis MO, USA
- Department of Psychiatry, Washington University School of Medicine, Saint Louis MO, USA
| | - Darshan Sapkota
- Department of Genetics, Washington University School of Medicine, Saint Louis MO, USA
- Department of Psychiatry, Washington University School of Medicine, Saint Louis MO, USA
- Department of Biological Sciences and Department of Neuroscience, University of Texas at Dallas, Richardson, TX, USA
| | - Sylvia Kang
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, USA
| | - Henry C. Hollis
- School of Biomedical Engineering and Health Systems, Drexel University, Philadelphia, PA, USA
| | - Jennifer H. Lawrence
- Department of Neurology, Washington University School of Medicine, Saint Louis MO, USA
| | - Ron C. Anafi
- Department of Medicine, Chronobiology, and Sleep Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Joseph D. Dougherty
- Department of Genetics, Washington University School of Medicine, Saint Louis MO, USA
- Department of Psychiatry, Washington University School of Medicine, Saint Louis MO, USA
- Intellectual and Developmental Disabilities Research Center, Washington University School of Medicine, St. Louis, MO, USA
| | - Jon D. Fryer
- Department of Neuroscience, Mayo Clinic, Scottsdale, AZ, USA
| | - Erik S. Musiek
- Department of Neurology, Washington University School of Medicine, Saint Louis MO, USA
- Center on Biological Rhythms and Sleep, Washington University School of Medicine, St. Louis, MO, USA
- Lead contact
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7
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Touitou Y, Cermakian N, Touitou C. The environment and the internal clocks: The study of their relationships from prehistoric to modern times. Chronobiol Int 2024; 41:859-887. [PMID: 38757600 DOI: 10.1080/07420528.2024.2353857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Accepted: 05/03/2024] [Indexed: 05/18/2024]
Abstract
The origin of biological rhythms goes back to the very beginning of life. They are observed in the animal and plant world at all levels of organization, from cells to ecosystems. As early as the 18th century, plant scientists were the first to explain the relationship between flowering cycles and environmental cycles, emphasizing the importance of daily light-dark cycles and the seasons. Our temporal structure is controlled by external and internal rhythmic signals. Light is the main synchronizer of the circadian system, as daily exposure to light entrains our clock over 24 hours, the endogenous period of the circadian system being close to, but not exactly, 24 hours. In 1960, a seminal scientific meeting, the Cold Spring Harbor Symposium on Biological Rhythms, brought together all the biological rhythms scientists of the time, a number of whom are considered the founders of modern chronobiology. All aspects of biological rhythms were addressed, from the properties of circadian rhythms to their practical and ecological aspects. Birth of chronobiology dates from this period, with the definition of its vocabulary and specificities in metabolism, photoperiodism, animal physiology, etc. At around the same time, and right up to the present day, research has focused on melatonin, the circadian neurohormone of the pineal gland, with data on its pattern, metabolism, control by light and clinical applications. However, light has a double face, as it has positive effects as a circadian clock entraining agent, but also deleterious effects, as it can lead to chronodisruption when exposed chronically at night, which can increase the risk of cancer and other diseases. Finally, research over the past few decades has unraveled the anatomical location of circadian clocks and their cellular and molecular mechanisms. This recent research has in turn allowed us to explain how circadian rhythms control physiology and health.
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Affiliation(s)
- Yvan Touitou
- Unité de Chronobiologie, Fondation A. de Rothschild, Paris, France
| | - Nicolas Cermakian
- Douglas Mental Health University Institute, McGill University, Montreal, Quebec, Canada
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8
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Munteanu C, Turti S, Achim L, Muresan R, Souca M, Prifti E, Mârza SM, Papuc I. The Relationship between Circadian Rhythm and Cancer Disease. Int J Mol Sci 2024; 25:5846. [PMID: 38892035 PMCID: PMC11172077 DOI: 10.3390/ijms25115846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2024] [Revised: 05/25/2024] [Accepted: 05/26/2024] [Indexed: 06/21/2024] Open
Abstract
The circadian clock regulates biological cycles across species and is crucial for physiological activities and biochemical reactions, including cancer onset and development. The interplay between the circadian rhythm and cancer involves regulating cell division, DNA repair, immune function, hormonal balance, and the potential for chronotherapy. This highlights the importance of maintaining a healthy circadian rhythm for cancer prevention and treatment. This article investigates the complex relationship between the circadian rhythm and cancer, exploring how disruptions to the internal clock may contribute to tumorigenesis and influence cancer progression. Numerous databases are utilized to conduct searches for articles, such as NCBI, MEDLINE, and Scopus. The keywords used throughout the academic archives are "circadian rhythm", "cancer", and "circadian clock". Maintaining a healthy circadian cycle involves prioritizing healthy sleep habits and minimizing disruptions, such as consistent sleep schedules, reduced artificial light exposure, and meal timing adjustments. Dysregulation of the circadian clock gene and cell cycle can cause tumor growth, leading to the need to regulate the circadian cycle for better treatment outcomes. The circadian clock components significantly impact cellular responses to DNA damage, influencing cancer development. Understanding the circadian rhythm's role in tumor diseases and their therapeutic targets is essential for treating and preventing cancer. Disruptions to the circadian rhythm can promote abnormal cell development and tumor metastasis, potentially due to immune system imbalances and hormonal fluctuations.
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Affiliation(s)
- Camelia Munteanu
- Department of Plant Culture, Faculty of Agriculture, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, Calea Mănăştur 3-5, 400372 Cluj-Napoca, Romania; (C.M.); (S.T.); (L.A.); (R.M.); (M.S.); (E.P.)
| | - Sabina Turti
- Department of Plant Culture, Faculty of Agriculture, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, Calea Mănăştur 3-5, 400372 Cluj-Napoca, Romania; (C.M.); (S.T.); (L.A.); (R.M.); (M.S.); (E.P.)
| | - Larisa Achim
- Department of Plant Culture, Faculty of Agriculture, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, Calea Mănăştur 3-5, 400372 Cluj-Napoca, Romania; (C.M.); (S.T.); (L.A.); (R.M.); (M.S.); (E.P.)
| | - Raluca Muresan
- Department of Plant Culture, Faculty of Agriculture, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, Calea Mănăştur 3-5, 400372 Cluj-Napoca, Romania; (C.M.); (S.T.); (L.A.); (R.M.); (M.S.); (E.P.)
| | - Marius Souca
- Department of Plant Culture, Faculty of Agriculture, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, Calea Mănăştur 3-5, 400372 Cluj-Napoca, Romania; (C.M.); (S.T.); (L.A.); (R.M.); (M.S.); (E.P.)
| | - Eftimia Prifti
- Department of Plant Culture, Faculty of Agriculture, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, Calea Mănăştur 3-5, 400372 Cluj-Napoca, Romania; (C.M.); (S.T.); (L.A.); (R.M.); (M.S.); (E.P.)
| | - Sorin Marian Mârza
- Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, Calea Mănăştur 3-5, 400372 Cluj-Napoca, Romania;
| | - Ionel Papuc
- Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, Calea Mănăştur 3-5, 400372 Cluj-Napoca, Romania;
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9
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González-Suárez M, Aguilar-Arnal L. Histone methylation: at the crossroad between circadian rhythms in transcription and metabolism. Front Genet 2024; 15:1343030. [PMID: 38818037 PMCID: PMC11137191 DOI: 10.3389/fgene.2024.1343030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 04/24/2024] [Indexed: 06/01/2024] Open
Abstract
Circadian rhythms, essential 24-hour cycles guiding biological functions, synchronize organisms with daily environmental changes. These rhythms, which are evolutionarily conserved, govern key processes like feeding, sleep, metabolism, body temperature, and endocrine secretion. The central clock, located in the suprachiasmatic nucleus (SCN), orchestrates a hierarchical network, synchronizing subsidiary peripheral clocks. At the cellular level, circadian expression involves transcription factors and epigenetic remodelers, with environmental signals contributing flexibility. Circadian disruption links to diverse diseases, emphasizing the urgency to comprehend the underlying mechanisms. This review explores the communication between the environment and chromatin, focusing on histone post-translational modifications. Special attention is given to the significance of histone methylation in circadian rhythms and metabolic control, highlighting its potential role as a crucial link between metabolism and circadian rhythms. Understanding these molecular intricacies holds promise for preventing and treating complex diseases associated with circadian disruption.
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Affiliation(s)
| | - Lorena Aguilar-Arnal
- Departamento de Biología Celular y Fisiología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, Mexico
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10
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Wang L, Tian H, Wang H, Mao X, Luo J, He Q, Wen P, Cao H, Fang L, Zhou Y, Yang J, Jiang L. Disrupting circadian control of autophagy induces podocyte injury and proteinuria. Kidney Int 2024; 105:1020-1034. [PMID: 38387504 DOI: 10.1016/j.kint.2024.01.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 12/21/2023] [Accepted: 01/12/2024] [Indexed: 02/24/2024]
Abstract
The circadian clock influences a wide range of biological process and controls numerous aspects of physiology to adapt to the daily environmental changes caused by Earth's rotation. The kidney clock plays an important role in maintaining tubular function, but its effect on podocytes remains unclear. Here, we found that podocytes expressed CLOCK proteins, and that 2666 glomerular gene transcripts (13.4%), including autophagy related genes, had 24-hour circadian rhythms. Deletion of Clock in podocytes resulted in 1666 gene transcripts with the loss of circadian rhythm including autophagy genes. Podocyte-specific Clock knockout mice at age three and eight months showed deficient autophagy, loss of podocytes and increased albuminuria. Chromatin immunoprecipitation (ChIP) sequence analysis indicated autophagy related genes were targets of CLOCK in podocytes. ChIP-PCR further confirmed Clock binding to the promoter regions of Becn1 and Atg12, two autophagy related genes. Furthermore, the association of CLOCK regulated autophagy with chronic sleep fragmentation and diabetic kidney disease was analyzed. Chronic sleep fragmentation resulted in the loss of glomerular Clock rhythm, inhibition of podocyte autophagy, and proteinuria. Rhythmic oscillations of Clock also disappeared in high glucose treated podocytes and in glomeruli from diabetic mice. Finally, circadian differences in podocyte autophagy were also abolished in diabetic mice. Deletion Clock in podocytes aggravated podocyte injury and proteinuria in diabetic mice. Thus, our findings demonstrate that clock-dependent regulation of autophagy may be essential for podocyte survival. Hence. loss of circadian controlled autophagy may play an important role in podocyte injury and proteinuria.
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Affiliation(s)
- Lulu Wang
- Department of Nephrology, The Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Han Tian
- Department of Nephrology, The Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Haiyan Wang
- Department of Nephrology, The Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Xiaoming Mao
- Department of Nephrology, The Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China; Department of Nephrology, Tianjin Medical University General Hospital, Tianjin, China
| | - Jing Luo
- Department of Nephrology, The Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Qingyun He
- Department of Nephrology, The Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Ping Wen
- Department of Nephrology, The Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Hongdi Cao
- Department of Nephrology, The Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Li Fang
- Department of Nephrology, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China.
| | - Yang Zhou
- Department of Nephrology, The Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China.
| | - Junwei Yang
- Department of Nephrology, The Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China.
| | - Lei Jiang
- Department of Nephrology, The Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China.
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11
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Kwiatkowski ER, Rosenthal JJC, Emery P. Clocks at sea: the genome-editing tide is rising. Trends Genet 2024; 40:387-397. [PMID: 38336520 DOI: 10.1016/j.tig.2024.01.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 01/17/2024] [Accepted: 01/19/2024] [Indexed: 02/12/2024]
Abstract
The coastline is a particularly challenging environment for its inhabitants. Not only do they have to cope with the solar day and the passing of seasons, but they must also deal with tides. In addition, many marine species track the phase of the moon, especially to coordinate reproduction. Marine animals show remarkable behavioral and physiological adaptability, using biological clocks to anticipate specific environmental cycles. Presently, we lack a basic understanding of the molecular mechanisms underlying circatidal and circalunar clocks. Recent advances in genome engineering and the development of genetically tractable marine model organisms are transforming how we study these timekeeping mechanisms and opening a novel era in marine chronobiology.
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Affiliation(s)
- Erica R Kwiatkowski
- University of Massachusetts Chan Medical School, Department of Neurobiology, Worcester, MA 01605, USA
| | | | - Patrick Emery
- University of Massachusetts Chan Medical School, Department of Neurobiology, Worcester, MA 01605, USA.
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12
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Pourali G, Ahmadzade AM, Arastonejad M, Pourali R, Kazemi D, Ghasemirad H, Khazaei M, Fiuji H, Nassiri M, Hassanian SM, Ferns GA, Avan A. The circadian clock as a potential biomarker and therapeutic target in pancreatic cancer. Mol Cell Biochem 2024; 479:1243-1255. [PMID: 37405534 DOI: 10.1007/s11010-023-04790-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Accepted: 06/15/2023] [Indexed: 07/06/2023]
Abstract
Pancreatic cancer (PC) has a very high mortality rate globally. Despite ongoing efforts, its prognosis has not improved significantly over the last two decades. Thus, further approaches for optimizing treatment are required. Various biological processes oscillate in a circadian rhythm and are regulated by an endogenous clock. The machinery controlling the circadian cycle is tightly coupled with the cell cycle and can interact with tumor suppressor genes/oncogenes; and can therefore potentially influence cancer progression. Understanding the detailed interactions may lead to the discovery of prognostic and diagnostic biomarkers and new potential targets for treatment. Here, we explain how the circadian system relates to the cell cycle, cancer, and tumor suppressor genes/oncogenes. Furthermore, we propose that circadian clock genes may be potential biomarkers for some cancers and review the current advances in the treatment of PC by targeting the circadian clock. Despite efforts to diagnose pancreatic cancer early, it still remains a cancer with poor prognosis and high mortality rates. While studies have shown the role of molecular clock disruption in tumor initiation, development, and therapy resistance, the role of circadian genes in pancreatic cancer pathogenesis is not yet fully understood and further studies are required to better understand the potential of circadian genes as biomarkers and therapeutic targets.
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Affiliation(s)
- Ghazaleh Pourali
- Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amir Mahmoud Ahmadzade
- Transplant Research Center, Clinical Research Institute, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Radiology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mahshid Arastonejad
- Department of Human and Molecular Genetics, Virginia Institute for Psychiatric and Behavioral Genetics, Virginia Commonwealth University, Richmond, VA, USA
| | - Roozbeh Pourali
- Student Research Committee, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Danial Kazemi
- Student Research Committee, Isfahan University of Medical Sciences, Hezar Jerib Street, Isfahan, Iran
| | - Hamidreza Ghasemirad
- Student Research Committee, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Majid Khazaei
- Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Basic Sciences Research Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hamid Fiuji
- Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammadreza Nassiri
- Basic Sciences Research Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed Mahdi Hassanian
- Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Basic Sciences Research Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Gordon A Ferns
- Division of Medical Education, Brighton & Sussex Medical School, Falmer, Brighton, Sussex, BN1 9PH, UK
| | - Amir Avan
- Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
- Medical Genetics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
- School of Biomedical Sciences, Faculty of Health, Queensland University of Technology, Kelvin Grove, Brisbane, QLD, 4059, Australia.
- Translational Research Institute, Woolloongabba, 37 Kent Street, QLD, 4102, Australia.
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13
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Shon J, Han Y, Song S, Kwon SY, Na K, Lindroth AM, Park YJ. Anti-obesity effect of butyrate links to modulation of gut microbiome and epigenetic regulation of muscular circadian clock. J Nutr Biochem 2024; 127:109590. [PMID: 38311045 DOI: 10.1016/j.jnutbio.2024.109590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 12/31/2023] [Accepted: 01/29/2024] [Indexed: 02/06/2024]
Abstract
The role of the muscle circadian clock in regulating oxidative metabolism exerts a significant influence on whole-body energy metabolism; however, research on the connection between the muscle circadian clock and obesity is limited. Moreover, there is a lack of studies demonstrating the regulatory effects of dietary butyrate on muscle circadian clock and the resulting antiobesity effects. This study aimed to investigate the impacts of dietary butyrate on metabolic and microbiome alterations and muscle circadian clock in a diet-induced obesity model. Male Sprague-Dawley rats were fed a high-fat diet with or without butyrate. Gut microbiota and serum metabolome were analyzed, and molecular changes were examined using tissues and a cell line. Further correlation analysis was performed on butyrate-induced results. Butyrate supplementation reduced weight gain, even with increased food intake. Gut microbiome analysis revealed an increased abundance of Firmicutes in butyrate group. Serum metabolite profile in butyrate group exhibited reduced amino acid and increased fatty acid content. Muscle circadian clock genes were upregulated, resulting in increased transcription of fatty acid oxidation-related genes. In myoblast cells, butyrate also enhanced pan-histone acetylation via histone deacetylase inhibition, particularly modulating acetylation at the promoter of circadian clock genes. Correlation analysis revealed potential links between Firmicutes phylum, including certain genera within it, and butyrate-induced molecular changes in muscle as well as phenotypic alterations. The butyrate-driven effects on diet-induced obesity were associated with alterations in gut microbiota and a muscle-specific increase in histone acetylation, leading to the transcriptional activation of circadian clock genes and their controlled genes.
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Affiliation(s)
- Jinyoung Shon
- Department of Nutritional Science and Food Management, Ewha Womans University, Seoul 03670, Republic of Korea; Graduate Program in System Health Science and Engineering, Ewha Womans University, Seoul 03670, Republic of Korea
| | - Yerim Han
- Department of Nutritional Science and Food Management, Ewha Womans University, Seoul 03670, Republic of Korea; Graduate Program in System Health Science and Engineering, Ewha Womans University, Seoul 03670, Republic of Korea
| | - Seungmin Song
- Department of Nutritional Science and Food Management, Ewha Womans University, Seoul 03670, Republic of Korea; Graduate Program in System Health Science and Engineering, Ewha Womans University, Seoul 03670, Republic of Korea
| | - So Young Kwon
- Department of Nutritional Science and Food Management, Ewha Womans University, Seoul 03670, Republic of Korea; Graduate Program in System Health Science and Engineering, Ewha Womans University, Seoul 03670, Republic of Korea
| | - Khuhee Na
- Department of Nutritional Science and Food Management, Ewha Womans University, Seoul 03670, Republic of Korea; Graduate Program in System Health Science and Engineering, Ewha Womans University, Seoul 03670, Republic of Korea
| | - Anders M Lindroth
- Graduate School of Cancer Science and Policy, Cancer Biomedical Science, National Cancer Center, Goyang-si 10408, Republic of Korea
| | - Yoon Jung Park
- Department of Nutritional Science and Food Management, Ewha Womans University, Seoul 03670, Republic of Korea; Graduate Program in System Health Science and Engineering, Ewha Womans University, Seoul 03670, Republic of Korea.
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14
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Kiperman T, Ma K. Circadian Clock in Muscle Disease Etiology and Therapeutic Potential for Duchenne Muscular Dystrophy. Int J Mol Sci 2024; 25:4767. [PMID: 38731986 PMCID: PMC11083552 DOI: 10.3390/ijms25094767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 04/20/2024] [Accepted: 04/25/2024] [Indexed: 05/13/2024] Open
Abstract
Circadian clock and clock-controlled output pathways exert temporal control in diverse aspects of skeletal muscle physiology, including the maintenance of muscle mass, structure, function, and metabolism. They have emerged as significant players in understanding muscle disease etiology and potential therapeutic avenues, particularly in Duchenne muscular dystrophy (DMD). This review examines the intricate interplay between circadian rhythms and muscle physiology, highlighting how disruptions of circadian regulation may contribute to muscle pathophysiology and the specific mechanisms linking circadian clock dysregulation with DMD. Moreover, we discuss recent advancements in chronobiological research that have shed light on the circadian control of muscle function and its relevance to DMD. Understanding clock output pathways involved in muscle mass and function offers novel insights into the pathogenesis of DMD and unveils promising avenues for therapeutic interventions. We further explore potential chronotherapeutic strategies targeting the circadian clock to ameliorate muscle degeneration which may inform drug development efforts for muscular dystrophy.
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Affiliation(s)
| | - Ke Ma
- Department of Diabetes Complications & Metabolism, Arthur Riggs Diabetes & Metabolism Research Institute, Beckman Research Institute of City of Hope, Duarte, CA 91010, USA;
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15
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March S, Nerurkar N, Jain A, Andrus L, Kim D, Whittaker CA, Tan EK, Thiberge S, Fleming HE, Mancio-Silva L, Rice CM, Bhatia SN. Autonomous circadian rhythms in the human hepatocyte regulate hepatic drug metabolism and inflammatory responses. SCIENCE ADVANCES 2024; 10:eadm9281. [PMID: 38657074 PMCID: PMC11042741 DOI: 10.1126/sciadv.adm9281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 03/22/2024] [Indexed: 04/26/2024]
Abstract
Critical aspects of physiology and cell function exhibit self-sustained ~24-hour variations termed circadian rhythms. In the liver, circadian rhythms play fundamental roles in maintaining organ homeostasis. Here, we established and characterized an in vitro liver experimental system in which primary human hepatocytes display self-sustained oscillations. By generating gene expression profiles of these hepatocytes over time, we demonstrated that their transcriptional state is dynamic across 24 hours and identified a set of cycling genes with functions related to inflammation, drug metabolism, and energy homeostasis. We designed and tested a treatment protocol to minimize atorvastatin- and acetaminophen-induced hepatotoxicity. Last, we documented circadian-dependent induction of pro-inflammatory cytokines when triggered by LPS, IFN-β, or Plasmodium infection in human hepatocytes. Collectively, our findings emphasize that the phase of the circadian cycle has a robust impact on the efficacy and toxicity of drugs, and we provide a test bed to study the timing and magnitude of inflammatory responses over the course of infection in human liver.
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Affiliation(s)
- Sandra March
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology (MIT), Cambridge, MA 02139, USA
- David H. Koch Institute for Integrative Cancer Research, MIT, Cambridge, MA 02139, USA
- Broad Institute of MIT and Harvard, Cambridge, MA 02139, USA
- Howard Hughes Medical Institute, Chevy Chase, MD 20815, USA
| | - Niketa Nerurkar
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology (MIT), Cambridge, MA 02139, USA
- David H. Koch Institute for Integrative Cancer Research, MIT, Cambridge, MA 02139, USA
| | - Anisha Jain
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology (MIT), Cambridge, MA 02139, USA
- David H. Koch Institute for Integrative Cancer Research, MIT, Cambridge, MA 02139, USA
- Howard Hughes Medical Institute, Chevy Chase, MD 20815, USA
| | - Linda Andrus
- Laboratory of Virology and Infectious Disease, The Rockefeller University, NY, New York, USA
| | - Daniel Kim
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology (MIT), Cambridge, MA 02139, USA
- David H. Koch Institute for Integrative Cancer Research, MIT, Cambridge, MA 02139, USA
| | - Charles A. Whittaker
- David H. Koch Institute for Integrative Cancer Research, MIT, Cambridge, MA 02139, USA
| | - Edward K.W. Tan
- David H. Koch Institute for Integrative Cancer Research, MIT, Cambridge, MA 02139, USA
| | - Sabine Thiberge
- Institut Pasteur, Université Paris Cité, Inserm U1201, CNRS EMR9195, Unité de Biologie des Interactions Hôte-Parasite, 75015 Paris, France
- Institut Pasteur, Université Paris Cité, Centre de Production et d’Infection des Anophèles, 75015 Paris, France
| | - Heather E. Fleming
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology (MIT), Cambridge, MA 02139, USA
- David H. Koch Institute for Integrative Cancer Research, MIT, Cambridge, MA 02139, USA
- Howard Hughes Medical Institute, Chevy Chase, MD 20815, USA
| | - Liliana Mancio-Silva
- Institut Pasteur, Université Paris Cité, Inserm U1201, CNRS EMR9195, Unité de Biologie des Interactions Hôte-Parasite, 75015 Paris, France
| | - Charles M. Rice
- Laboratory of Virology and Infectious Disease, The Rockefeller University, NY, New York, USA
| | - Sangeeta N. Bhatia
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology (MIT), Cambridge, MA 02139, USA
- David H. Koch Institute for Integrative Cancer Research, MIT, Cambridge, MA 02139, USA
- Broad Institute of MIT and Harvard, Cambridge, MA 02139, USA
- Howard Hughes Medical Institute, Chevy Chase, MD 20815, USA
- Wyss Institute at Harvard University, 201 Brookline Ave, Boston, MA 02215, USA
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16
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Ogunlusi O, Sarkar M, Chakrabarti A, Boland DJ, Nguyen T, Sampson J, Nguyen C, Fails D, Jones-Hall Y, Fu L, Mallick B, Keene A, Jones J, Sarkar TR. Disruption of Circadian Clock Induces Abnormal Mammary Morphology and Aggressive Basal Tumorigenesis by Enhancing LILRB4 Signaling. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.03.19.585534. [PMID: 38562905 PMCID: PMC10983926 DOI: 10.1101/2024.03.19.585534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Epidemiological studies have shown that circadian rhythm disruption (CRD) is associated with the risk of breast cancer. However, the role of CRD in mammary gland morphology and aggressive basal mammary tumorigenesis and the molecular mechanisms underlying CRD and cancer risk remain unknown. To investigate the effect of CRD on aggressive tumorigenesis, a genetically engineered mouse model that recapitulates the human basal type of breast cancer was used for this study. The effect of CRD on mammary gland morphology was investigated using wild-type mice model. The impact of CRD on the tumor microenvironment was investigated using the tumors from LD12:12 and CRD mice via scRNA seq. ScRNA seq was substantiated by multiplexing immunostaining, flow cytometry, and realtime PCR. The effect of LILRB4 immunotherapy on CRD-induced tumorigenesis was also investigated. Here we identified the impact of CRD on basal tumorigenesis and mammary gland morphology and identified the role of LILRB4 on CRD-induced lung metastasis. We found that chronic CRD disrupted mouse mammary gland morphology and increased tumor burden, and lung metastasis and induced an immunosuppressive tumor microenvironment by enhancing LILRB4a expression. Moreover, CRD increased the M2-macrophage and regulatory T-cell populations but decreased the M1-macrophage populations. Furthermore, targeted immunotherapy against LILRB4 reduced CRD-induced immunosuppressive microenvironment and lung metastasis. These findings identify and implicate LILRB4a as a link between CRD and aggressive mammary tumorigenesis. This study also establishes the potential role of the targeted LILRB4a immunotherapy as an inhibitor of CRD-induced lung metastasis.
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17
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Bass J. Interorgan rhythmicity as a feature of healthful metabolism. Cell Metab 2024; 36:655-669. [PMID: 38335957 PMCID: PMC10990795 DOI: 10.1016/j.cmet.2024.01.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 01/10/2024] [Accepted: 01/17/2024] [Indexed: 02/12/2024]
Abstract
The finding that animals with circadian gene mutations exhibit diet-induced obesity and metabolic syndrome with hypoinsulinemia revealed a distinct role for the clock in the brain and peripheral tissues. Obesogenic diets disrupt rhythmic sleep/wake patterns, feeding behavior, and transcriptional networks, showing that metabolic signals reciprocally control the clock. Providing access to high-fat diet only during the sleep phase (light period) in mice accelerates weight gain, whereas isocaloric time-restricted feeding during the active period enhances energy expenditure due to circadian induction of adipose thermogenesis. This perspective focuses on advances and unanswered questions in understanding the interorgan circadian control of healthful metabolism.
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Affiliation(s)
- Joseph Bass
- Department of Medicine, Division of Endocrinology, Metabolism, and Molecular Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA.
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18
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Petersen KA, Zong W, Depoy LM, Scott MR, Shankar VG, Burns JN, Cerwensky AJ, Kim SM, Ketchesin KD, Tseng GC, McClung CA. Comparative rhythmic transcriptome profiling of human and mouse striatal subregions. Neuropsychopharmacology 2024; 49:796-805. [PMID: 38182777 PMCID: PMC10948754 DOI: 10.1038/s41386-023-01788-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 12/14/2023] [Accepted: 12/19/2023] [Indexed: 01/07/2024]
Abstract
The human striatum can be subdivided into the caudate, putamen, and nucleus accumbens (NAc). In mice, this roughly corresponds to the dorsal medial striatum (DMS), dorsal lateral striatum (DLS), and ventral striatum (NAc). Each of these structures have some overlapping and distinct functions related to motor control, cognitive processing, motivation, and reward. Previously, we used a "time-of-death" approach to identify diurnal rhythms in RNA transcripts in these three human striatal subregions. Here, we identify molecular rhythms across similar striatal subregions collected from C57BL/6J mice across 6 times of day and compare results to the human striatum. Pathway analysis indicates a large degree of overlap between species in rhythmic transcripts involved in processes like cellular stress, energy metabolism, and translation. Notably, a striking finding in humans is that small nucleolar RNAs (snoRNAs) and long non-coding RNAs (lncRNAs) are among the most highly rhythmic transcripts in the NAc and this is not conserved in mice, suggesting the rhythmicity of RNA processing in this region could be uniquely human. Furthermore, the peak timing of overlapping rhythmic genes is altered between species, but not consistently in one direction. Taken together, these studies reveal conserved as well as distinct transcriptome rhythms across the human and mouse striatum and are an important step in understanding the normal function of diurnal rhythms in humans and model organisms in these regions and how disruption could lead to pathology.
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Affiliation(s)
- Kaitlyn A Petersen
- Department of Psychiatry, Translational Neuroscience Program, Center for Neuroscience, University of Pittsburgh, Pittsburgh, PA, USA
| | - Wei Zong
- Department of Biostatistics, University of Pittsburgh, Pittsburgh, PA, USA
| | - Lauren M Depoy
- Department of Psychiatry, Translational Neuroscience Program, Center for Neuroscience, University of Pittsburgh, Pittsburgh, PA, USA
| | - Madeline R Scott
- Department of Psychiatry, Translational Neuroscience Program, Center for Neuroscience, University of Pittsburgh, Pittsburgh, PA, USA
| | - Vaishnavi G Shankar
- Department of Psychiatry, Translational Neuroscience Program, Center for Neuroscience, University of Pittsburgh, Pittsburgh, PA, USA
| | - Jennifer N Burns
- Department of Psychiatry, Translational Neuroscience Program, Center for Neuroscience, University of Pittsburgh, Pittsburgh, PA, USA
| | - Allison J Cerwensky
- Department of Psychiatry, Translational Neuroscience Program, Center for Neuroscience, University of Pittsburgh, Pittsburgh, PA, USA
| | - Sam-Moon Kim
- Department of Psychiatry, Translational Neuroscience Program, Center for Neuroscience, University of Pittsburgh, Pittsburgh, PA, USA
| | - Kyle D Ketchesin
- Department of Psychiatry, Translational Neuroscience Program, Center for Neuroscience, University of Pittsburgh, Pittsburgh, PA, USA
| | - George C Tseng
- Department of Biostatistics, University of Pittsburgh, Pittsburgh, PA, USA
| | - Colleen A McClung
- Department of Psychiatry, Translational Neuroscience Program, Center for Neuroscience, University of Pittsburgh, Pittsburgh, PA, USA.
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19
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van Rosmalen L, Deota S, Maier G, Le HD, Lin T, Ramasamy RK, Hut RA, Panda S. Energy balance drives diurnal and nocturnal brain transcriptome rhythms. Cell Rep 2024; 43:113951. [PMID: 38508192 DOI: 10.1016/j.celrep.2024.113951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 01/30/2024] [Accepted: 02/26/2024] [Indexed: 03/22/2024] Open
Abstract
Plasticity in daily timing of activity has been observed in many species, yet the underlying mechanisms driving nocturnality and diurnality are unknown. By regulating how much wheel-running activity will be rewarded with a food pellet, we can manipulate energy balance and switch mice to be nocturnal or diurnal. Here, we present the rhythmic transcriptome of 21 tissues, including 17 brain regions, sampled every 4 h over a 24-h period from nocturnal and diurnal male CBA/CaJ mice. Rhythmic gene expression across tissues comprised different sets of genes with minimal overlap between nocturnal and diurnal mice. We show that non-clock genes in the suprachiasmatic nucleus (SCN) change, and the habenula was most affected. Our results indicate that adaptive flexibility in daily timing of behavior is supported by gene expression dynamics in many tissues and brain regions, especially in the habenula, which suggests a crucial role for the observed nocturnal-diurnal switch.
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Affiliation(s)
- Laura van Rosmalen
- Regulatory Biology Laboratory, The Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA 92037, USA
| | - Shaunak Deota
- Regulatory Biology Laboratory, The Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA 92037, USA
| | - Geraldine Maier
- Regulatory Biology Laboratory, The Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA 92037, USA
| | - Hiep D Le
- Regulatory Biology Laboratory, The Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA 92037, USA
| | - Terry Lin
- Regulatory Biology Laboratory, The Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA 92037, USA
| | - Ramesh K Ramasamy
- Regulatory Biology Laboratory, The Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA 92037, USA
| | - Roelof A Hut
- Chronobiology Unit, Groningen Institute for Evolutionary Life Sciences, University of Groningen, 9700 CC Groningen, the Netherlands.
| | - Satchidananda Panda
- Regulatory Biology Laboratory, The Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA 92037, USA.
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20
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Cox OH, Gianonni-Guzmán MA, Cartailler JP, Cottam MA, McMahon DG. Gene expression plasticity of the mammalian brain circadian clock in response to photoperiod. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.02.16.580759. [PMID: 38586021 PMCID: PMC10996532 DOI: 10.1101/2024.02.16.580759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
Seasonal daylength, or circadian photoperiod, is a pervasive environmental signal that profoundly influences physiology and behavior. In mammals, the central circadian clock resides in the suprachiasmatic nuclei (SCN) of the hypothalamus where it receives retinal input and synchronizes, or entrains, organismal physiology and behavior to the prevailing light cycle. The process of entrainment induces sustained plasticity in the SCN, but the molecular mechanisms underlying SCN plasticity are incompletely understood. Entrainment to different photoperiods persistently alters the timing, waveform, period, and light resetting properties of the SCN clock and its driven rhythms. To elucidate novel molecular mechanisms of photoperiod plasticity, we performed RNAseq on whole SCN dissected from mice raised in Long (LD 16:8) and Short (LD 8:16) photoperiods. Fewer rhythmic genes were detected in Long photoperiod and in general the timing of gene expression rhythms was advanced 4-6 hours. However, a few genes showed significant delays, including Gem . There were significant changes in the expression clock-associated gene Timeless and in SCN genes related to light responses, neuropeptides, GABA, ion channels, and serotonin. Particularly striking were differences in the expression of the neuropeptide signaling genes Prokr2 and Cck , as well as convergent regulation of the expression of three SCN light response genes, Dusp4 , Rasd1 , and Gem . Transcriptional modulation of Dusp4 and Rasd1, and phase regulation of Gem, are compelling candidate molecular mechanisms for plasticity in the SCN light response through their modulation of the critical NMDAR-MAPK/ERK-CREB/CRE light signaling pathway in SCN neurons. Modulation of Prokr2 and Cck may critically support SCN neural network reconfiguration during photoperiodic entrainment. Our findings identify the SCN light response and neuropeptide signaling gene sets as rich substrates for elucidating novel mechanisms of photoperiod plasticity.
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21
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D’Angelo M, Steardo L. Cannabinoids and Sleep: Exploring Biological Mechanisms and Therapeutic Potentials. Int J Mol Sci 2024; 25:3603. [PMID: 38612415 PMCID: PMC11011314 DOI: 10.3390/ijms25073603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 03/15/2024] [Accepted: 03/21/2024] [Indexed: 04/14/2024] Open
Abstract
The endogenous cannabinoid system (ECS) plays a critical role in the regulation of various physiological functions, including sleep, mood, and neuroinflammation. Phytocannabinoids such as Δ9-tetrahydrocannabinol (THC), cannabidiol (CBD), cannabinomimimetics, and some N-acylethanolamides, particularly palmitoyethanolamide, have emerged as potential therapeutic agents for the management of sleep disorders. THC, the psychoactive component of cannabis, may initially promote sleep, but, in the long term, alters sleep architecture, while CBD shows promise in improving sleep quality without psychoactive effects. Clinical studies suggest that CBD modulates endocannabinoid signaling through several receptor sites, offering a multifaceted approach to sleep regulation. Similarly, palmitoylethanolamide (PEA), in addition to interacting with the endocannabinoid system, acts as an agonist on peroxisome proliferator-activated receptors (PPARs). The favorable safety profile of CBD and PEA and the potential for long-term use make them an attractive alternative to conventional pharmacotherapy. The integration of the latter two compounds into comprehensive treatment strategies, together with cognitive-behavioral therapy for insomnia (CBT-I), represents a holistic approach to address the multifactorial nature of sleep disorders. Further research is needed to establish the optimal dosage, safety, and efficacy in different patient populations, but the therapeutic potential of CBD and PEA offers hope for improved sleep quality and general well-being.
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Affiliation(s)
| | - Luca Steardo
- Psychiatry Unit, Department of Health Sciences, University of Catanzaro Magna Graecia, 88100 Catanzaro, Italy;
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22
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Abstract
The blood-brain barrier (BBB) is a critical interface separating the central nervous system from the peripheral circulation, ensuring brain homeostasis and function. Recent research has unveiled a profound connection between the BBB and circadian rhythms, the endogenous oscillations synchronizing biological processes with the 24-hour light-dark cycle. This review explores the significance of circadian rhythms in the context of BBB functions, with an emphasis on substrate passage through the BBB. Our discussion includes efflux transporters and the molecular timing mechanisms that regulate their activities. A significant focus of this review is the potential implications of chronotherapy, leveraging our knowledge of circadian rhythms for improving drug delivery to the brain. Understanding the temporal changes in BBB can lead to optimized timing of drug administration, to enhance therapeutic efficacy for neurological disorders while reducing side effects. By elucidating the interplay between circadian rhythms and drug transport across the BBB, this review offers insights into innovative therapeutic interventions.
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Affiliation(s)
- Mari Kim
- Cell Biology Department, Emory University, Atlanta, GA, USA (M.K., S.L.Z.)
| | - Richard F Keep
- Neurosurgery, University of Michigan, Ann Arbor, MI, USA (R.F.K.)
| | - Shirley L Zhang
- Cell Biology Department, Emory University, Atlanta, GA, USA (M.K., S.L.Z.)
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23
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Odriozola A, González A, Álvarez-Herms J, Corbi F. Circadian rhythm and host genetics. ADVANCES IN GENETICS 2024; 111:451-495. [PMID: 38908904 DOI: 10.1016/bs.adgen.2024.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/24/2024]
Abstract
This chapter aims to explore the usefulness of the latest advances in genetic studies in the field of the circadian system in the future development of individualised strategies for health improvement based on lifestyle intervention. Due to the multifactorial and complex nature of the circadian system, we focus on the highly prevalent phenotypes in the population that are key to understanding its biology from an evolutionary perspective and that can be modulated by lifestyle. Therefore, we leave in the background those phenotypes that constitute infrequent pathologies or in which the current level of scientific evidence does not favour the implementation of practical approaches of this type. Therefore, from an evolutionary paradigm, this chapter addresses phenotypes such as morning chronotypes, evening chronotypes, extreme chronotypes, and other key concepts such as circadian rhythm amplitude, resilience to changes in circadian rhythm, and their relationships with pathologies associated with circadian rhythm imbalances.
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Affiliation(s)
- Adrián Odriozola
- Department of Genetics, Physical Anthropology and Animal Physiology, University of the Basque Country (UPV/EHU), Leioa, Spain.
| | - Adriana González
- Department of Genetics, Physical Anthropology and Animal Physiology, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Jesús Álvarez-Herms
- Phymo® Lab, Physiology and Molecular Laboratory, Collado Hermoso, Segovia, Spain
| | - Francesc Corbi
- Institut Nacional d'Educació Física de Catalunya (INEFC), Centre de Lleida, Universitat de Lleida (UdL), Lleida, Spain
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24
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Raza GS, Kaya Y, Stenbäck V, Sharma R, Sodum N, Mutt SJ, Gagnon DD, Tulppo M, Järvelin MR, Herzig KH, Mäkelä KA. Effect of Aerobic Exercise and Time-Restricted Feeding on Metabolic Markers and Circadian Rhythm in Mice Fed with the High-Fat Diet. Mol Nutr Food Res 2024; 68:e2300465. [PMID: 38389173 DOI: 10.1002/mnfr.202300465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 11/30/2023] [Indexed: 02/24/2024]
Abstract
SCOPE Diet and exercise are significant players in obesity and metabolic diseases. Time-restricted feeding (tRF) has been shown to improve metabolic responses by regulating circadian clocks but whether it acts synergically with exercise remains unknown. It is hypothesized that forced exercise alone or combined with tRF alleviates obesity and its metabolic complications. METHODS AND RESULTS Male C57bl6 mice are fed with high-fat or a control diet for 12 weeks either ad libitum or tRF for 10 h during their active period. High-fat diet (HFD)-fed mice are divided into exercise (treadmill for 1 h at 12 m min-1 alternate days for 9 weeks and 16 m min-1 daily for the following 3 weeks) and non-exercise groups. tRF and tRF-Ex significantly decreased body weight, food intake, and plasma lipids, and improved glucose tolerance. However, exercise reduced only body weight and plasma lipids. tRF and tRF-Ex significantly downregulated Fasn, Hmgcr, and Srebp1c, while exercise only Hmgcr. HFD feeding disrupted clock genes, but exercise, tRF, and tRF-Ex coordinated the circadian clock genes Bmal1, Per2, and Rev-Erbα in the liver, adipose tissue, and skeletal muscles. CONCLUSION HFD feeding disrupted clock genes in the peripheral organs while exercise, tRF, and their combination restored clock genes and improved metabolic consequences induced by high-fat diet feeding.
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Affiliation(s)
- Ghulam Shere Raza
- Research Unit of Biomedicine and Internal Medicine, Medical Research Center, Faculty of Medicine, Biocenter of Oulu, University of Oulu, Aapistie 5, Oulu, 90220, Finland
| | - Yağmur Kaya
- Faculty of Health Sciences, Department of Nutrition and Dietetics, Istanbul Kent University, Istanbul, 34406, Turkey
| | - Ville Stenbäck
- Research Unit of Biomedicine and Internal Medicine, Medical Research Center, Faculty of Medicine, Biocenter of Oulu, University of Oulu, Aapistie 5, Oulu, 90220, Finland
| | - Ravikant Sharma
- Research Unit of Biomedicine and Internal Medicine, Medical Research Center, Faculty of Medicine, Biocenter of Oulu, University of Oulu, Aapistie 5, Oulu, 90220, Finland
| | - Nalini Sodum
- Research Unit of Biomedicine and Internal Medicine, Medical Research Center, Faculty of Medicine, Biocenter of Oulu, University of Oulu, Aapistie 5, Oulu, 90220, Finland
| | - Shivaprakash Jagalur Mutt
- Department of Medical Cell Biology, Science for Life Laboratory, Uppsala University, Uppsala, 75123, Sweden
| | - Dominique D Gagnon
- Faculty of Sports and Health Sciences, University of Jyväskylä, Seminaarinkatu 15, Jyväskylä, 40014, Finland
- Clinic for Sports and Exercise Medicine, Department of Sports and Exercise Medicine, Faculty of Medicine, University of Helsinki Mäkelänkatu, Helsinki, 00550, Finland
| | - Mikko Tulppo
- Research Unit of Biomedicine and Internal Medicine, Medical Research Center, Faculty of Medicine, Biocenter of Oulu, University of Oulu, Aapistie 5, Oulu, 90220, Finland
| | - Marjo-Riitta Järvelin
- Department of Epidemiology and Biostatistics, MRC-PHE Centre for Environment and Health, School of Public Health, Imperial College London, London, SW72AZ, UK
| | - Karl-Heinz Herzig
- Research Unit of Biomedicine and Internal Medicine, Medical Research Center, Faculty of Medicine, Biocenter of Oulu, University of Oulu, Aapistie 5, Oulu, 90220, Finland
- Pediatric Gastroenterology and Metabolic Diseases, Pediatric Institute, Poznan University of Medical Sciences, Poznań, 60-572, Poland
| | - Kari A Mäkelä
- Research Unit of Biomedicine and Internal Medicine, Medical Research Center, Faculty of Medicine, Biocenter of Oulu, University of Oulu, Aapistie 5, Oulu, 90220, Finland
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25
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Ferreira LL, Rosatto N, Marzullo P, Bellan M. Circadian variations in the elderly: A scoping review. Chronobiol Int 2024; 41:311-328. [PMID: 38501270 DOI: 10.1080/07420528.2024.2327456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Accepted: 03/02/2024] [Indexed: 03/20/2024]
Abstract
The circadian clock plays important roles in several physiological processes. With aging, some of these circadian rhythms have been shown to be disrupted and suggested contributing to age-related diseases. The aim of this scoping review was to examine and map the existing evidence of circadian differences between young and older people in body fluid composition. Literature search was carried out on PubMed, Embase, Scopus and OpenGrey. The studies were screened based on inclusion and exclusion criteria by two independent reviewers and the results were summarized tabularly and narratively. The review process resulted in the identification of 1889 publications, of which 42 were eligible for inclusion. Forty-eight parameters or families of parameters were identified, including cortisol and melatonin, sex hormones, thyroid-related hormones, steroids and aldosterone. However, many were reported by only a single study. The results from the studies were heterogeneous. Even though the majority suggested the flattening of several circadian oscillations in the elderly population, this was not always observed for all the parameters analyzed, and some contradictory results were found. This review revealed a substantial number of publications that explored this research question, but further studies would be important to elucidate the clinical significance of these alterations.
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Affiliation(s)
- Luciana L Ferreira
- Department of Translational Medicine, Università del Piemonte Orientale, Novara, Italy
| | - Nadia Rosatto
- Department of Translational Medicine, Università del Piemonte Orientale, Novara, Italy
| | - Paolo Marzullo
- Department of Translational Medicine, Università del Piemonte Orientale, Novara, Italy
| | - Mattia Bellan
- Department of Translational Medicine, Università del Piemonte Orientale, Novara, Italy
- Department of Internal Medicine and Rheumatology Unit, Azienda Ospedaliero-Universitaria Maggiore Della Carità, Novara, Italy
- Center on Autoimmune and Allergic Diseases, Università del Piemonte Orientale, Novara, Italy
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26
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Zhang X, Huang S, Kim JY. Cell-type specific circadian transcription factor BMAL1 roles in excitotoxic hippocampal lesions to enhance neurogenesis. iScience 2024; 27:108829. [PMID: 38303690 PMCID: PMC10831945 DOI: 10.1016/j.isci.2024.108829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 10/11/2023] [Accepted: 01/03/2024] [Indexed: 02/03/2024] Open
Abstract
Circadian clocks, generating daily rhythms in biological processes, maintain homeostasis in physiology, so clock alterations are considered detrimental. Studies in brain pathology support this by reporting abnormal circadian phenotypes in patients, but restoring the abnormalities by light therapy shows no dramatic effects. Recent studies on glial clocks report the complex effects of altered clocks by showing their beneficial effects on brain repairs. However, how neuronal clocks respond to brain pathology is elusive. This study shows that neuronal BMAL1, a core of circadian clocks, reduces its expression levels in neurodegenerative excitotoxicity. In the dentate gyrus of excitotoxic hippocampal lesions, reduced BMAL1 in granule cells precedes apoptosis. This subsequently reduces BMAL1 levels in neighbor neural stem cells and progenitors in the subgranular zone, enhancing proliferation. This shows the various BMAL1 roles depending on cell types, and its alterations can benefit brain repair. Thus, cell-type-specific BMAL1 targeting is necessary to treat brain pathology.
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Affiliation(s)
- Xuebing Zhang
- Department of Biomedical Sciences, City University of Hong Kong, Hong Kong SAR, China
| | - Suihong Huang
- Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Hong Kong SAR, China
| | - Jin Young Kim
- Department of Biomedical Sciences, City University of Hong Kong, Hong Kong SAR, China
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27
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Yang YH, Fan XX, Ye L, Huang WJ, Ko CY. Examining the molecular mechanisms of topiramate in alleviating insulin resistance: A study on C2C12 myocytes and 3T3L-1 adipocytes. Endocrine 2024:10.1007/s12020-024-03706-6. [PMID: 38308786 DOI: 10.1007/s12020-024-03706-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 01/17/2024] [Indexed: 02/05/2024]
Abstract
PURPOSE Migraine, a severely debilitating condition, may be effectively managed with topiramate, known for its migraine prevention and weight loss properties due to changes in body muscle and fat composition and improved insulin sensitivity. However, the mechanism of topiramate in modulating insulin response in adipocytes and myocytes remains elusive. This study aims to elucidate these molecular mechanisms, offering insights into its role in weight management for migraine sufferers and underpinning its clinical application. METHODS Insulin resistance improvements were evaluated through glucose uptake measurements in C2C12 muscle cells and 3T3L-1 adipocytes, with Oil red O staining conducted on adipocytes. RNA-seq transcriptome analysis was used to identify the regulatory target genes of topiramate in these cells. The involvement of key genes and pathways was further validated through western blot analysis. RESULTS Topiramate effectively reduced insulin resistance in C2C12 and 3T3L-1 cells. In C2C12 cells, it significantly lowered SORBS1 gene and protein levels. In 3T3L-1 cells, topiramate upregulated CTGF and downregulated MAPK8 and KPNA1 genes. Changes were notable in nuclear cytoplasmic transport and circadian signaling pathways. Furthermore, it caused downregulation of MKK7, pJNK1/ JNK1, BMAL1, and CLOCK proteins compared to the insulin-resistant model. CONCLUSION This study provides preliminary insights into the mechanisms through which topiramate modulates insulin resistance in C2C12 myocytes and 3T3L-1 adipocytes, enhancing our understanding of its therapeutic potential in managing weight and insulin sensitivity in migraine patients.
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Affiliation(s)
- Ya-Hui Yang
- The School of Public Health, Fujian Medical University, Fuzhou, Fujian, 350122, China
- Department of Clinical Nutrition, the Second Affiliated Hospital of Fujian Medical University, Quanzhou, 362000, China
| | - Xi-Xin Fan
- The School of Public Health, Fujian Medical University, Fuzhou, Fujian, 350122, China
- Department of Clinical Nutrition, the Second Affiliated Hospital of Fujian Medical University, Quanzhou, 362000, China
| | - Lichao Ye
- Department of Neurology, the Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian, 3620000, China
| | - Wen-Jian Huang
- Department of Clinical Nutrition, the Second Affiliated Hospital of Fujian Medical University, Quanzhou, 362000, China
- Huidong Center for Chronic Disease Control, Huizhou, Guangdong Province, 516300, China
| | - Chih-Yuan Ko
- The School of Public Health, Fujian Medical University, Fuzhou, Fujian, 350122, China.
- Department of Clinical Nutrition, the Second Affiliated Hospital of Fujian Medical University, Quanzhou, 362000, China.
- The School of Medical Technology and Engineering, Fujian Medical University, Fuzhou, Fujian, 350122, China.
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Alsammani A, Stacey WC, Gliske SV. Estimation of Circular Statistics in the Presence of Measurement Bias. IEEE J Biomed Health Inform 2024; 28:1089-1100. [PMID: 38032776 PMCID: PMC10964323 DOI: 10.1109/jbhi.2023.3334684] [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: 12/02/2023]
Abstract
Circular statistics and Rayleigh tests are important tools for analyzing cyclic events. However, current methods are not robust to significant measurement bias, especially incomplete or otherwise non-uniform sampling. One example is studying 24-cyclicity but having data not recorded uniformly over the full 24-hour cycle. Our objective is to present a robust method to estimate circular statistics and their statistical significance in the presence of incomplete or otherwise non-uniform sampling. Our method is to solve the underlying Fredholm Integral Equation for the more general problem, estimating probability distributions in the context of imperfect measurements, with our circular statistics in the presence of incomplete/non-uniform sampling being one special case. The method is based on linear parameterizations of the underlying distributions. We simulated the estimation error of our approach for several toy examples as well as for a real-world example: analyzing the 24-hour cyclicity of an electrographic biomarker of epileptic tissue controlled for states of vigilance. We also evaluated the accuracy of the Rayleigh test statistic versus the direct simulation of statistical significance. Our method shows a very low estimation error. In the real-world example, the corrected moments had a root mean square error of [Formula: see text]. In contrast, the Rayleigh test statistic overestimated the statistical significance and was thus not reliable. The presented methods thus provide a robust solution to computing circular moments even with incomplete or otherwise non-uniform sampling. Since Rayleigh test statistics cannot be used in this circumstance, direct estimation of significance is the preferable option for estimating statistical significance.
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Kaiser S, Henrich L, Kiessling I, Loy B, Schallner N. Neuroprotection via Carbon Monoxide Depends on the Circadian Regulation of CD36-Mediated Microglial Erythrophagocytosis in Hemorrhagic Stroke. Int J Mol Sci 2024; 25:1680. [PMID: 38338958 PMCID: PMC10855856 DOI: 10.3390/ijms25031680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 01/19/2024] [Accepted: 01/27/2024] [Indexed: 02/12/2024] Open
Abstract
The molecular basis for circadian dependency in stroke due to subarachnoid hemorrhagic stroke (SAH) remains unclear. We reasoned that microglial erythrophagocytosis, crucial for SAH response, follows a circadian pattern involving carbon monoxide (CO) and CD36 surface expression. The microglial BV-2 cell line and primary microglia (PMG) under a clocked medium change were exposed to blood ± CO (250 ppm, 1 h) in vitro. Circadian dependency and the involvement of CD36 were analyzed in PMG isolated from control mice and CD36-/- mice and by RNA interference targeting Per-2. In vivo investigations, including phagocytosis, vasospasm, microglia activation and spatial memory, were conducted in an SAH model using control and CD36-/- mice at different zeitgeber times (ZT). In vitro, the surface expression of CD36 and its dependency on CO and phagocytosis occurred with changed circadian gene expression. CD36-/- PMG exhibited altered circadian gene expression, phagocytosis and impaired responsiveness to CO. In vivo, control mice with SAH demonstrated circadian dependency in microglia activation, erythrophagocytosis and CO-mediated protection at ZT2, in contrast to CD36-/- mice. Our study indicates that circadian rhythmicity modulates microglial activation and subsequent CD36-dependent phagocytosis. CO altered circadian-dependent neuroprotection and CD36 induction, determining the functional outcome in a hemorrhagic stroke model. This study emphasizes how circadian rhythmicity influences neuronal damage after neurovascular events.
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Affiliation(s)
- Sandra Kaiser
- Department of Anesthesiology & Critical Care Medicine, Medical Center, University of Freiburg, 79106 Freiburg, Germany (N.S.)
- Faculty of Medicine, University of Freiburg, 79110 Freiburg, Germany
| | - Luise Henrich
- Department of Anesthesiology & Critical Care Medicine, Medical Center, University of Freiburg, 79106 Freiburg, Germany (N.S.)
- Faculty of Medicine, University of Freiburg, 79110 Freiburg, Germany
| | - Iva Kiessling
- Department of Anesthesiology & Critical Care Medicine, Medical Center, University of Freiburg, 79106 Freiburg, Germany (N.S.)
- Faculty of Medicine, University of Freiburg, 79110 Freiburg, Germany
| | - Benedikt Loy
- Department of Anesthesiology & Critical Care Medicine, Medical Center, University of Freiburg, 79106 Freiburg, Germany (N.S.)
- Faculty of Medicine, University of Freiburg, 79110 Freiburg, Germany
| | - Nils Schallner
- Department of Anesthesiology & Critical Care Medicine, Medical Center, University of Freiburg, 79106 Freiburg, Germany (N.S.)
- Faculty of Medicine, University of Freiburg, 79110 Freiburg, Germany
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30
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Huang CH, Yu S, Yu HS, Tu HP, Yeh YT, Yu HS. Chronic blue light-emitting diode exposure harvests gut dysbiosis related to cholesterol dysregulation. Front Cell Infect Microbiol 2024; 13:1320713. [PMID: 38259967 PMCID: PMC10800827 DOI: 10.3389/fcimb.2023.1320713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 12/12/2023] [Indexed: 01/24/2024] Open
Abstract
Night shift workers have been associated with circadian dysregulation and metabolic disorders, which are tightly coevolved with gut microbiota. The chronic impacts of light-emitting diode (LED) lighting at night on gut microbiota and serum lipids were investigated. Male C57BL/6 mice were exposed to blue or white LED lighting at Zeitgeber time 13.5-14 (ZT; ZT0 is the onset of "lights on" and ZT12 is the "lights off" onset under 12-hour light, 12-hour dark schedule). After 33 weeks, only the high irradiance (7.2 J/cm2) of blue LED light reduced the alpha diversity of gut microbiota. The high irradiance of white LED light and the low irradiance (3.6 J/cm2) of both lights did not change microbial alpha diversity. However, the low irradiance, but not the high one, of both blue and white LED illuminations significantly increased serum total cholesterol (TCHO), but not triglyceride (TG). There was no significant difference of microbial abundance between two lights. The ratio of beneficial to harmful bacteria decreased at a low irradiance but increased at a high irradiance of blue light. Notably, this ratio was negatively correlated with serum TCHO but positively correlated with bile acid biosynthesis pathway. Therefore, chronic blue LED lighting at a high irradiance may harvest gut dysbiosis in association with decreased alpha diversity and the ratio of beneficial to harmful bacteria to specifically dysregulates TCHO metabolism in mice. Night shift workers are recommended to be avoid of blue LED lighting for a long and lasting time.
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Affiliation(s)
- Cheng-Hsieh Huang
- Ph. D. Program in Environmental and Occupational Medicine, College of Medicine, Kaohsiung Medical University and National Health Research Institutes, Kaohsiung, Taiwan
- Aging and Disease Prevention Research Center, Fooyin University, Kaohsiung, Taiwan
| | - Sebastian Yu
- Department of Dermatology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Hsu-Sheng Yu
- Department of Food Science, National Pingtung University of Science and Technology, Pingtung, Taiwan
| | - Hung-Pin Tu
- Department of Public Health and Environmental Medicine, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yao-Tsung Yeh
- Aging and Disease Prevention Research Center, Fooyin University, Kaohsiung, Taiwan
- Department of Medical Laboratory Sciences and Biotechnology, Fooyin University, Kaohsiung, Taiwan
| | - Hsin-Su Yu
- National Institute of Environmental Health Sciences, National Health Research Institutes, Miaoli, Taiwan
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
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31
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Blouchou A, Chamou V, Eleftheriades C, Poulimeneas D, Kontouli KM, Gkiouras K, Bargiota A, Gkouskou KK, Rigopoulou E, Bogdanos DP, Goulis DG, Grammatikopoulou MG. Beat the Clock: Assessment of Night Eating Syndrome and Circadian Rhythm in a Sample of Greek Adults. Nutrients 2024; 16:187. [PMID: 38257080 PMCID: PMC10818804 DOI: 10.3390/nu16020187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 12/30/2023] [Accepted: 01/02/2024] [Indexed: 01/24/2024] Open
Abstract
The night eating syndrome (NES) is characterized by excessive food intake during the evening and night hours, with 25% of the daily intake being consumed post-dinner, paired with ep-isodes of nocturnal food intake, at a frequency of more than twice weekly. The NES has been associated with a misaligned circadian rhythm related to a delay in overall food intake, increased energy and fat consumption. The present cross-sectional study aimed to assess NES in a Greek population and evaluate possible links between NES and chronotype. NES was assessed using the Night Eating Questionnaire (NEQ), and circadian rhythm, sleep and mood were evaluated with the Sleep, Circadian Rhythms, and Mood (SCRAM) questionnaire. A total of 533 adults participated in the study. A relatively high prevalence of NES was revealed, with more than 8.1% (NEQ ≥ 30) of the participants reporting experiencing NES symptoms, depending on the NEQ threshold used. Most participants had the intermediate chronotype. NEQ score was positively associated with the morning chronotype, and SCRAM was negatively related to "Good Sleep". Each point increment in the depression score was associated with 6% higher odds of NES. The early identification of NES gains importance in clinical practice, in a collective effort aiming to reduce NES symptomatology and its detrimental health effects.
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Affiliation(s)
- Anastasia Blouchou
- Department of Nutritional Sciences and Dietetics, Faculty of Health Sciences, International Hellenic University, Alexander Campus, Sindos, GR-57400 Thessaloniki, Greece; (A.B.); (V.C.); (C.E.)
| | - Vasiliki Chamou
- Department of Nutritional Sciences and Dietetics, Faculty of Health Sciences, International Hellenic University, Alexander Campus, Sindos, GR-57400 Thessaloniki, Greece; (A.B.); (V.C.); (C.E.)
| | - Christos Eleftheriades
- Department of Nutritional Sciences and Dietetics, Faculty of Health Sciences, International Hellenic University, Alexander Campus, Sindos, GR-57400 Thessaloniki, Greece; (A.B.); (V.C.); (C.E.)
| | - Dimitrios Poulimeneas
- Department of Nutritional Science and Dietetics, School of Health Sciences, University of the Peloponnese, GR-24100 Kalamata, Greece
| | - Katerina-Maria Kontouli
- Department of Primary Education, School of Education, University of Ioannina, GR-45110 Ioannina, Greece
| | - Konstantinos Gkiouras
- Unit of Immunonutrition and Clinical Nutrition, Department of Rheumatology and Clinical Immunology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, GR-41223 Larissa, Greece
| | - Alexandra Bargiota
- Department of Endocrinology and Metabolic Diseases, Faculty of Medicine, University of Thessaly, Biopolis, GR-41223 Larissa, Greece
| | - Kalliopi K. Gkouskou
- Laboratory of Biology, School of Medicine, National and Kapodistrian University of Athens, GR-11527 Athens, Greece;
- Genosophy, 1 Melissinon and Damvergidon Street, GR-71305 Heraklion, Crete, Greece
| | - Eirini Rigopoulou
- Department of Medicine and Research Laboratory of Internal Medicine, National Expertise Center of Greece in Autoimmune Liver Diseases, Larissa University Hospital, Biopolis, GR-41334 Larissa, Greece
- European Reference Network on Hepatological Diseases (ERN RARE-LIVER), Larissa University Hospital, Biopolis, GR-41334 Larissa, Greece
| | - Dimitrios P. Bogdanos
- Unit of Immunonutrition and Clinical Nutrition, Department of Rheumatology and Clinical Immunology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, GR-41223 Larissa, Greece
| | - Dimitrios G. Goulis
- Unit of Reproductive Endocrinology, 1st Department of Obstetrics and Gynecology, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
| | - Maria G. Grammatikopoulou
- Unit of Immunonutrition and Clinical Nutrition, Department of Rheumatology and Clinical Immunology, Faculty of Medicine, School of Health Sciences, University of Thessaly, Biopolis, GR-41223 Larissa, Greece
- Unit of Reproductive Endocrinology, 1st Department of Obstetrics and Gynecology, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
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Dial MB, Malek EM, Neblina GA, Cooper AR, Vaslieva NI, Frommer R, Girgis M, Dawn B, McGinnis GR. Effects of time-restricted exercise on activity rhythms and exercise-induced adaptations in the heart. Sci Rep 2024; 14:146. [PMID: 38168503 PMCID: PMC10761674 DOI: 10.1038/s41598-023-50113-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Accepted: 12/15/2023] [Indexed: 01/05/2024] Open
Abstract
Circadian rhythms play a crucial role in the regulation of various physiological processes, including cardiovascular function and metabolism. Exercise provokes numerous beneficial adaptations in heart, including physiological hypertrophy, and serves to shift circadian rhythms. This study investigated the impact of time-restricted exercise training on exercise-induced adaptations in the heart and locomotor activity rhythms. Male mice (n = 45) were allocated to perform voluntary, time-restricted exercise in the early active phase (EAP), late active phase (LAP), or remain sedentary (SED) for 6 weeks. Subsequently, mice were allowed 24-h ad libitum access to the running wheel to assess diurnal rhythms in locomotor activity. Heart weight and cross-sectional area were measured at sacrifice, and cardiac protein and gene expression levels were assessed for markers of mitochondrial abundance and circadian clock gene expression. Mice rapidly adapted to wheel running, with EAP mice exhibiting a significantly greater running distance compared to LAP mice. Time-restricted exercise induced a shift in voluntary wheel activity during the 24-h free access period, with the acrophase in activity being significantly earlier in EAP mice compared to LAP mice. Gene expression analysis revealed a higher expression of Per1 in LAP mice. EAP exercise elicited greater cardiac hypertrophy compared to LAP exercise. These findings suggest that the timing of exercise affects myocardial adaptations, with exercise in the early active phase inducing hypertrophy in the heart. Understanding the time-of-day dependent response to exercise in the heart may have implications for optimizing exercise interventions for cardiovascular health.
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Affiliation(s)
- Michael B Dial
- Department of Kinesiology and Nutrition Sciences, University of Nevada, Las Vegas, 4505 S. Maryland Parkway, Bigelow Health Sciences (BHS) Building 323, Las Vegas, NV, 89154, USA
| | - Elias M Malek
- Department of Kinesiology and Nutrition Sciences, University of Nevada, Las Vegas, 4505 S. Maryland Parkway, Bigelow Health Sciences (BHS) Building 323, Las Vegas, NV, 89154, USA
| | - Greco A Neblina
- Department of Kinesiology and Nutrition Sciences, University of Nevada, Las Vegas, 4505 S. Maryland Parkway, Bigelow Health Sciences (BHS) Building 323, Las Vegas, NV, 89154, USA
| | - Austin R Cooper
- Department of Kinesiology and Nutrition Sciences, University of Nevada, Las Vegas, 4505 S. Maryland Parkway, Bigelow Health Sciences (BHS) Building 323, Las Vegas, NV, 89154, USA
| | - Nikoleta I Vaslieva
- Department of Kinesiology and Nutrition Sciences, University of Nevada, Las Vegas, 4505 S. Maryland Parkway, Bigelow Health Sciences (BHS) Building 323, Las Vegas, NV, 89154, USA
| | - Rebecca Frommer
- Department of Internal Medicine, Kirk Kerkorian School of Medicine, University of Nevada, Las Vegas, Las Vegas, NV, USA
| | - Magdy Girgis
- Department of Internal Medicine, Kirk Kerkorian School of Medicine, University of Nevada, Las Vegas, Las Vegas, NV, USA
| | - Buddhadeb Dawn
- Department of Internal Medicine, Kirk Kerkorian School of Medicine, University of Nevada, Las Vegas, Las Vegas, NV, USA
| | - Graham R McGinnis
- Department of Kinesiology and Nutrition Sciences, University of Nevada, Las Vegas, 4505 S. Maryland Parkway, Bigelow Health Sciences (BHS) Building 323, Las Vegas, NV, 89154, USA.
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Yamakawa W, Yasukochi S, Tsurudome Y, Kusunose N, Yamaguchi Y, Tsuruta A, Matsunaga N, Ushijima K, Koyanagi S, Ohdo S. Suppression of neuropathic pain in the circadian clock-deficient Per2m/m mice involves up-regulation of endocannabinoid system. PNAS NEXUS 2024; 3:pgad482. [PMID: 38239754 PMCID: PMC10794166 DOI: 10.1093/pnasnexus/pgad482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 12/21/2023] [Indexed: 01/22/2024]
Abstract
Neuropathic pain often results from injuries and diseases that affect the somatosensory system. Disruption of the circadian clock has been implicated in the exacerbation of the neuropathic pain state. However, in this study, we report that mice deficient in a core clock component Period2 (Per2m/m mice) fail to develop tactile pain hypersensitivity even following peripheral nerve injury. Similar to male wild-type mice, partial sciatic nerve ligation (PSL)-Per2m/m male mice showed activation of glial cells in the dorsal horn of the spinal cord and increased expression of pain-related genes. Interestingly, α1D-adrenergic receptor (α1D-AR) expression was up-regulated in the spinal cord of Per2m/m mice, leading to increased production of 2-arachidonoylglycerol (2-AG), an endocannabinoid receptor ligand. This increase in 2-AG suppressed the PSL-induced tactile pain hypersensitivity. Furthermore, intraspinal dorsal horn injection of adeno-associated viral vectors expressing α1D-AR also attenuated pain hypersensitivity in PSL-wild-type male mice by increasing 2-AG production. Our findings reveal an uncovered role of the circadian clock in neuropathic pain disorders and suggest a link between α1D-AR signaling and the endocannabinoid system.
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Affiliation(s)
- Wakaba Yamakawa
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Sai Yasukochi
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Yuya Tsurudome
- Division of Pharmaceutics, Faculty of Pharmaceutical Sciences, Sanyo-Onoda City University, Yamaguchi, 756-0884, Japan
| | - Naoki Kusunose
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Yuta Yamaguchi
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Akito Tsuruta
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
- Department of Glocal Healthcare Science, Faculty of Pharmaceutical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Naoya Matsunaga
- Department of Clinical Pharmacokinetics, Faculty of Pharmaceutical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Kentaro Ushijima
- Division of Pharmaceutics, Faculty of Pharmaceutical Sciences, Sanyo-Onoda City University, Yamaguchi, 756-0884, Japan
| | - Satoru Koyanagi
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
- Department of Glocal Healthcare Science, Faculty of Pharmaceutical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Shigehiro Ohdo
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
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Henrich L, Kiessling I, Steimer M, Frase S, Kaiser S, Schallner N. Circadian dependency of microglial heme oxygenase-1 expression and inflammation determine neuronal injury in hemorrhagic stroke. J Inflamm (Lond) 2023; 20:43. [PMID: 38104143 PMCID: PMC10725034 DOI: 10.1186/s12950-023-00371-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 12/13/2023] [Indexed: 12/19/2023] Open
Abstract
BACKGROUND The heme oxygenase-1 (HO-1) enzyme pathway is of crucial importance in the removal of toxic blood components and regulation of neuroinflammation following hemorrhagic stroke. Although a circadian pattern dependency in the incidence and severity of hemorrhagic stroke exists, it is unknown whether the activity of the HO-1 system in the context of hemorrhagic injury also exhibits circadian dependency. We hypothesized that the circadian regulation of microglial HO-1 would determine the extent of neuroinflammation and neuronal injury in a murine model of subarachnoid hemorrhage (SAH). METHODS In vitro expression patterns of HO-1 and circadian rhythm genes were analyzed in the microglial BV-2 cell line and primary microglia (PMG) using Western blot and qPCR. PMG isolated from Hmox1fl/fl and LyzM-Cre-Hmox1fl/fl mice were used to evaluate the role of microglial HO-1. We further investigated the in vivo relevance in a murine subarachnoid hemorrhage (SAH) model using Hmox1fl/fl and LyzM-Cre-Hmox1fl/fl mice with myeloid cell HO-1 deficiency, inducing SAH at different zeitgeber (ZT) times and analyzing the expression of HO-1 and the circadian control gene Period-2 (Per-2), respectively. Furthermore, we measured the inflammatory cytokine Monocyte Chemoattractant Protein-1 (MCP-1) in the cerebrospinal fluid of SAH patients in correlation with clinical outcome. RESULTS HO-1 baseline expression and response to CO with blood exposure depended on ZT. In vitro expression of circadian control genes was de-synchronized in LyzM-Cre-Hmox1fl/fl PMG and did not respond to exogenous CO exposure. We found that circadian rhythm plays a crucial role in brain damage after SAH. At ZT2, we observed less phagocytic function, more vasospasm and increased microglial activation. CO reduced mortality at ZT12 in HO-1 deficient mice and reduced the difference between ZT2 and ZT12 in the inflammatory response. Induction of MCP-1 in the CSF from SAH patients was time-dependent and correlated with the expression of circadian control genes, SAH severity, functional impairment and delirium. CONCLUSIONS Our data point towards a crucial role for the HO-1 enzyme system and circadian control in neuronal injury after a hemorrhagic stroke.
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Affiliation(s)
- Luise Henrich
- Department of Anesthesiology & Critical Care, Medical Center, University of Freiburg, Hugstetter Str. 55, Freiburg, 79106, Germany
- Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Iva Kiessling
- Department of Anesthesiology & Critical Care, Medical Center, University of Freiburg, Hugstetter Str. 55, Freiburg, 79106, Germany
- Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Matti Steimer
- Department of Anesthesiology & Critical Care, Medical Center, University of Freiburg, Hugstetter Str. 55, Freiburg, 79106, Germany
- Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Sibylle Frase
- Faculty of Medicine, University of Freiburg, Freiburg, Germany
- Department of Neurology and Neuroscience, Medical Center, University of Freiburg, Freiburg, Germany
| | - Sandra Kaiser
- Department of Anesthesiology & Critical Care, Medical Center, University of Freiburg, Hugstetter Str. 55, Freiburg, 79106, Germany
- Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Nils Schallner
- Department of Anesthesiology & Critical Care, Medical Center, University of Freiburg, Hugstetter Str. 55, Freiburg, 79106, Germany.
- Faculty of Medicine, University of Freiburg, Freiburg, Germany.
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González-Vila A, Luengo-Mateos M, Silveira-Loureiro M, Garrido-Gil P, Ohinska N, González-Domínguez M, Labandeira-García JL, García-Cáceres C, López M, Barca-Mayo O. Astrocytic insulin receptor controls circadian behavior via dopamine signaling in a sexually dimorphic manner. Nat Commun 2023; 14:8175. [PMID: 38071352 PMCID: PMC10710518 DOI: 10.1038/s41467-023-44039-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Accepted: 11/28/2023] [Indexed: 12/18/2023] Open
Abstract
Mammalian circadian clocks respond to feeding and light cues, adjusting internal rhythms with day/night cycles. Astrocytes serve as circadian timekeepers, driving daily physiological rhythms; however, it's unknown how they ensure precise cycle-to-cycle rhythmicity. This is critical for understanding why mistimed or erratic feeding, as in shift work, disrupts circadian physiology- a condition linked to type 2 diabetes and obesity. Here, we show that astrocytic insulin signaling sets the free-running period of locomotor activity in female mice and food entrainment in male mice. Additionally, ablating the insulin receptor in hypothalamic astrocytes alters cyclic energy homeostasis differently in male and female mice. Remarkably, the mutants exhibit altered dopamine metabolism, and the pharmacological modulation of dopaminergic signaling partially restores distinct circadian traits in both male and female mutant mice. Our findings highlight the role of astrocytic insulin-dopaminergic signaling in conveying time-of-feeding or lighting cues to the astrocyte clock, thus governing circadian behavior in a sex-specific manner.
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Affiliation(s)
- Antía González-Vila
- Circadian and Glial Biology Lab, Physiology Department, Molecular Medicine and Chronic Diseases Research Centre (CiMUS), University of Santiago de Compostela, Santiago de Compostela, Spain
- NeurObesity Lab, Physiology Department, Molecular Medicine and Chronic Diseases Research Centre (CiMUS), University of Santiago de Compostela, Santiago de Compostela, Spain
| | - María Luengo-Mateos
- Circadian and Glial Biology Lab, Physiology Department, Molecular Medicine and Chronic Diseases Research Centre (CiMUS), University of Santiago de Compostela, Santiago de Compostela, Spain
| | - María Silveira-Loureiro
- Circadian and Glial Biology Lab, Physiology Department, Molecular Medicine and Chronic Diseases Research Centre (CiMUS), University of Santiago de Compostela, Santiago de Compostela, Spain
- NeurObesity Lab, Physiology Department, Molecular Medicine and Chronic Diseases Research Centre (CiMUS), University of Santiago de Compostela, Santiago de Compostela, Spain
| | - Pablo Garrido-Gil
- Laboratory of Cellular and Molecular Neurobiology of Parkinson's Disease, Department of Morphological Science, Molecular Medicine and Chronic Diseases Research Centre (CiMUS), University of Santiago de Compostela, Santiago de Compostela, Spain
- Networking Research Center on Neurodegenerative Diseases (CIBERNED), Madrid, Spain
| | - Nataliia Ohinska
- Circadian and Glial Biology Lab, Physiology Department, Molecular Medicine and Chronic Diseases Research Centre (CiMUS), University of Santiago de Compostela, Santiago de Compostela, Spain
- Horbachevsky Ternopil National Medical University, Ternopil, Ukraine
| | - Marco González-Domínguez
- Circadian and Glial Biology Lab, Physiology Department, Molecular Medicine and Chronic Diseases Research Centre (CiMUS), University of Santiago de Compostela, Santiago de Compostela, Spain
| | - Jose Luis Labandeira-García
- Laboratory of Cellular and Molecular Neurobiology of Parkinson's Disease, Department of Morphological Science, Molecular Medicine and Chronic Diseases Research Centre (CiMUS), University of Santiago de Compostela, Santiago de Compostela, Spain
- Networking Research Center on Neurodegenerative Diseases (CIBERNED), Madrid, Spain
| | - Cristina García-Cáceres
- Institute for Diabetes and Obesity, Helmholtz Diabetes Center, Helmholtz Munich & German Center for Diabetes Research (DZD), 85764, Neuherberg, Germany
- Medizinische Klinik und Poliklinik IV, Klinikum der Universität, Ludwig-Maximilians-Universität München, 80336, Munich, Germany
| | - Miguel López
- NeurObesity Lab, Physiology Department, Molecular Medicine and Chronic Diseases Research Centre (CiMUS), University of Santiago de Compostela, Santiago de Compostela, Spain.
| | - Olga Barca-Mayo
- Circadian and Glial Biology Lab, Physiology Department, Molecular Medicine and Chronic Diseases Research Centre (CiMUS), University of Santiago de Compostela, Santiago de Compostela, Spain.
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Chen W, Zhao S, Xing J, Yu W, Rao T, Zhou X, Ruan Y, Li S, Xia Y, Song T, Zou F, Li W, Cheng F. BMAL1 inhibits renal fibrosis and renal interstitial inflammation by targeting the ERK1/2/ELK-1/Egr-1 axis. Int Immunopharmacol 2023; 125:111140. [PMID: 37951191 DOI: 10.1016/j.intimp.2023.111140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 10/07/2023] [Accepted: 10/24/2023] [Indexed: 11/13/2023]
Abstract
RATIONALE Renal fibrosis and renal interstitial inflammation due to hydronephrosis are associated with progressive chronic kidney disease (CKD). The clock gene BMAL1 is thought to be involved in various diseases, including hypertension, diabetes, etc. However, little is known about how BMAL1 regulates renal fibrosis and renal interstitial inflammation in obstructed kidneys. METHODS The expression level of BMAL1 in UUO was examined using the GEO database. Lentivirus, siRNA and adeno-associated virus were used to modulate BMAL1 levels in HK-2 cells and mouse kidney. qRT-PCR, immunofluorescence staining, histological analysis, ELISA and Western blot were used to determine the level of fibrin deposition and the release of inflammatory factors. Immunofluorescence staining and western blotting were used to examine the interaction between BMAL1 and the ERK1/2/ELK-1/Egr-1 axis. RESULTS Bioinformatics analysis and in vivo experiments in this study showed that the expression level of BMAL1 in UUO model kidneys was higher than that in normal kidneys. We then found that downregulation of BMAL1 promoted the production of extracellular matrix (ECM) proteins and proinflammatory factors in vivo and in vitro, whereas upregulation inhibited this process. In addition, we demonstrated that the ERK1/2/ELK-1/Egr-1 axis is an important pathway for BMAL1 to play a regulatory role, and the use of PD98059 abolished the promoting effect of down-regulation of BMAL1 on fibrosis and inflammation. CONCLUSIONS Our findings suggest that BAML1 can target the ERK1/2/ELK-1/Egr-1 axis to suppress fibrotic progression and inflammatory events in obstructed kidneys, thereby inhibiting the development of CKD.
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Affiliation(s)
- Wu Chen
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Sheng Zhao
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Ji Xing
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Weimin Yu
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Ting Rao
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Xiangjun Zhou
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Yuan Ruan
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Siqi Li
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan 430060, China; Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Yuqi Xia
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Tianbao Song
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Fan Zou
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Wei Li
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan 430060, China.
| | - Fan Cheng
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan 430060, China.
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Fasipe B, Laher I. Nrf2 modulates the benefits of evening exercise in type 2 diabetes. SPORTS MEDICINE AND HEALTH SCIENCE 2023; 5:251-258. [PMID: 38314046 PMCID: PMC10831386 DOI: 10.1016/j.smhs.2023.09.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 08/31/2023] [Accepted: 09/05/2023] [Indexed: 02/06/2024] Open
Abstract
Exercise has well-characterized therapeutic benefits in the management of type 2 diabetes mellitus (T2DM). Most of the beneficial effects of exercise arise from the impact of nuclear factor erythroid 2 related factor-2 (Nrf2) activation of glucose metabolism. Nrf2 is an essential controller of cellular anti-oxidative capacity and circadian rhythms. The circadian rhythm of Nrf2 is influenced by circadian genes on its expression, where the timing of exercise effects the activation of Nrf2 and the rhythmicity of Nrf2 and signaling, such that the timing of exercise has differential physiological effects. Exercise in the evening has beneficial effects on diabetes management, such as lowering of blood glucose and weight. The mechanisms responsible for these effects have not yet been associated with the influence of exercise on the circadian rhythm of Nrf2 activity. A better understanding of exercise-induced Nrf2 activation on Nrf2 rhythm and signaling can improve our appreciation of the distinct effects of morning and evening exercise. This review hypothesizes that activation of Nrf2 by exercise in the morning, when Nrf2 level is already at high levels, leads to hyperactivation and decrease in Nrf2 signaling, while activation of Nrf2 in the evening, when Nrf2 levels are at nadir levels, improves Nrf2 signaling and lowers blood glucose levels and increases fatty acid oxidation. Exploring the effects of Nrf2 activators on rhythmic signaling could also provide valuable insights into the optimal timing of their application, while also holding promise for timed treatment of type 2 diabetes.
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Affiliation(s)
- Babatunde Fasipe
- Faculty of Basic Clinical Sciences, Department of Pharmacology and Therapeutics, Bowen University, Iwo, Nigeria
| | - Ismail Laher
- Faculty of Medicine, Department of Anesthesiology, Pharmacology and Therapeutics, The University of British Columbia, Vancouver, Canada
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Rofe N, Brosh YS, Vardi-Naim H, Einat H, Kronfeld-Schor N, Lan A. Salivary cortisol concentration and perceived stress measure in response to acute natural stress: The role of morningness-eveningness preference. Chronobiol Int 2023; 40:1515-1521. [PMID: 37919934 DOI: 10.1080/07420528.2023.2276203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 10/23/2023] [Indexed: 11/04/2023]
Abstract
Chronotype reflects the morningness-eveningness preference over a 24-h period. Significant data indicates meaningful differences between evening types (ET) and morning types (MT) in behavior, personality traits, health and well-being. The aim of this study was to investigate cortisol response and subjective perceived stress of MT and ET individuals in response to an acute natural stressor. Twenty six definite MT (mean age 23.4 ± 1.7) and twenty six definite ET (mean age 23.8 ± 1.3) college students were recruited for this study. Participants were instructed to evaluate their perceived subjective stress and to provide saliva samples for cortisol levels at four different time points: Morning of regular school day, morning immediately before a final exam, afternoon of a regular school day and afternoon immediately before a final exam. For general mood assessment, the participants were also asked to fill out the Positive and Negative Affect Schedule (PANAS) questionnaire. The most outstanding finding of this study was the blunting of cortisol increase in response to acute stress in the morning in the ET group: Salivary cortisol was higher before a final exam only in MT but not in ET. However, no differences between the groups were found in the subjective stress measure. In the PANAS scale, ET showed lower positive affect, and a trend towards a higher negative affect. Overall, our results suggest dysregulation of cortisol response in ET individuals, possibly due to their daily struggle to function in a morning-oriented society. These results further highlight the challenges faced by ET individuals and raise the question of possible interventions to assist them.
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Affiliation(s)
- Noa Rofe
- School of Behavioral Sciences, Tel-Aviv-Yaffo Academic College, Tel-Aviv, Israel
| | - Yuval S Brosh
- School of Behavioral Sciences, Tel-Aviv-Yaffo Academic College, Tel-Aviv, Israel
| | | | - Haim Einat
- School of Behavioral Sciences, Tel-Aviv-Yaffo Academic College, Tel-Aviv, Israel
| | | | - Anat Lan
- School of Behavioral Sciences, Tel-Aviv-Yaffo Academic College, Tel-Aviv, Israel
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Bolshette N, Ibrahim H, Reinke H, Asher G. Circadian regulation of liver function: from molecular mechanisms to disease pathophysiology. Nat Rev Gastroenterol Hepatol 2023; 20:695-707. [PMID: 37291279 DOI: 10.1038/s41575-023-00792-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/27/2023] [Indexed: 06/10/2023]
Abstract
A wide variety of liver functions are regulated daily by the liver circadian clock and via systemic circadian control by other organs and cells within the gastrointestinal tract as well as the microbiome and immune cells. Disruption of the circadian system, as occurs during jetlag, shift work or an unhealthy lifestyle, is implicated in several liver-related pathologies, ranging from metabolic diseases such as obesity, type 2 diabetes mellitus and nonalcoholic fatty liver disease to liver malignancies such as hepatocellular carcinoma. In this Review, we cover the molecular, cellular and organismal aspects of various liver pathologies from a circadian viewpoint, and in particular how circadian dysregulation has a role in the development and progression of these diseases. Finally, we discuss therapeutic and lifestyle interventions that carry health benefits through support of a functional circadian clock that acts in synchrony with the environment.
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Affiliation(s)
- Nityanand Bolshette
- Department of Biomolecular Sciences, Weizmann Institute of Science, Rehovot, Israel
| | - Hussam Ibrahim
- University of Düsseldorf, Medical Faculty, Institute of Clinical Chemistry and Laboratory Diagnostics, Düsseldorf, Germany
| | - Hans Reinke
- University of Düsseldorf, Medical Faculty, Institute of Clinical Chemistry and Laboratory Diagnostics, Düsseldorf, Germany.
| | - Gad Asher
- Department of Biomolecular Sciences, Weizmann Institute of Science, Rehovot, Israel.
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Miao L, Weidemann DE, Ngo K, Unruh BA, Kojima S. A comparative study of algorithms detecting differential rhythmicity in transcriptomic data. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.10.12.562079. [PMID: 37905086 PMCID: PMC10614781 DOI: 10.1101/2023.10.12.562079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
Rhythmic transcripts play pivotal roles in driving the daily oscillations of various biological processes. Genetic or environmental disruptions can lead to alterations in the rhythmicity of transcripts, ultimately impacting downstream circadian outputs, including metabolic processes and even behavior. To statistically compare the differences in transcript rhythms between two or more conditions, several algorithms have been developed to analyze circadian transcriptomic data, each with distinct features. In this study, we compared the performance of seven algorithms that were specifically designed to detect differential rhythmicity. We found that even when applying the same statistical threshold, these algorithms yielded varying numbers of differentially rhythmic transcripts. Nevertheless, the set of transcripts commonly identified as differentially rhythmic exhibited substantial overlap among algorithms. Furthermore, the phase and amplitude differences calculated by these algorithms displayed significant correlations. In summary, our study highlights a high degree of similarity in the results produced by these algorithms. Furthermore, when selecting an algorithm for analysis, it is crucial to ensure the compatibility of input data with the specific requirements of the chosen algorithm and to assess whether the algorithm's output fits the needs of the user.
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Affiliation(s)
- Lin Miao
- Department of Biological Sciences, Virginia Tech, Blacksburg, VA, 24061, USA
- Fralin Life Sciences Institute, Virginia Tech, Blacksburg, VA, 24061, USA
| | - Douglas E Weidemann
- Department of Biological Sciences, Virginia Tech, Blacksburg, VA, 24061, USA
- Fralin Life Sciences Institute, Virginia Tech, Blacksburg, VA, 24061, USA
| | - Katherine Ngo
- Department of Biological Sciences, Virginia Tech, Blacksburg, VA, 24061, USA
- Fralin Life Sciences Institute, Virginia Tech, Blacksburg, VA, 24061, USA
| | - Benjamin A Unruh
- Department of Biological Sciences, Virginia Tech, Blacksburg, VA, 24061, USA
- Fralin Life Sciences Institute, Virginia Tech, Blacksburg, VA, 24061, USA
| | - Shihoko Kojima
- Department of Biological Sciences, Virginia Tech, Blacksburg, VA, 24061, USA
- Fralin Life Sciences Institute, Virginia Tech, Blacksburg, VA, 24061, USA
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Li W, Xiong X, Kiperman T, Ma K. Transcription Repression of CRY2 via PER2 Interaction Promotes Adipogenesis. Mol Cell Biol 2023; 43:500-514. [PMID: 37724597 PMCID: PMC10569361 DOI: 10.1080/10985549.2023.2253710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 08/25/2023] [Indexed: 09/21/2023] Open
Abstract
The circadian clock is driven by a transcriptional-translational feedback loop, and cryptochrome 2 (CRY2) represses CLOCK/BMAL1-induced transcription activation. Despite the established role of clock in adipogenic regulation, whether the CRY2 repressor activity functions in adipocyte biology remains unclear. Here we identify a critical cysteine residue of CRY2 that mediates interaction with Period 2 (PER2). We further demonstrate that this mechanism is required for repressing circadian clock-controlled Wnt signaling to promote adipogenesis. CRY2 protein is enriched in white adipose depots and robustly induced by adipogenic differentiation. Via site-directed mutagenesis, we identified that a conserved CRY2 cysteine at 432 within the loop interfacing with PER2 mediates heterodimer complex formation that confers transcription repression. C432 mutation disrupted PER2 association without affecting BMAL1 binding, leading to loss of repression of clock transcription activation. In preadipocytes, whereas CRY2 enhanced adipocyte differentiation, the repression-defective C432 mutant suppressed this process. Furthermore, silencing of CRY2 attenuated, while stabilization of CRY2 by KL001 markedly augmented adipocyte maturation. Mechanistically, we show that transcriptional repression of Wnt pathway components underlies CRY2 modulation of adipogenesis. Collectively, our findings elucidate a CRY2-mediated repression mechanism that promotes adipocyte development, and implicate its potential as a clock intervention target for obesity.
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Affiliation(s)
- Weini Li
- Department of Diabetes Complications & Metabolism, Arthur Riggs Diabetes & Metabolism Research Institute, Beckman Research Institute of City of Hope, Duarte, California, USA
| | - Xuekai Xiong
- Department of Diabetes Complications & Metabolism, Arthur Riggs Diabetes & Metabolism Research Institute, Beckman Research Institute of City of Hope, Duarte, California, USA
| | - Tali Kiperman
- Department of Diabetes Complications & Metabolism, Arthur Riggs Diabetes & Metabolism Research Institute, Beckman Research Institute of City of Hope, Duarte, California, USA
| | - Ke Ma
- Department of Diabetes Complications & Metabolism, Arthur Riggs Diabetes & Metabolism Research Institute, Beckman Research Institute of City of Hope, Duarte, California, USA
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Alfaro AJ, Dittner C, Becker J, Loft A, Mhamane A, Maida A, Georgiadi A, Tsokanos F, Klepac K, Molocea C, El‐Merahbi R, Motzler K, Geppert J, Karikari RA, Szendrödi J, Feuchtinger A, Hofmann S, Karaca S, Urlaub H, Berriel Diaz M, Melchior F, Herzig S. Fasting-sensitive SUMO-switch on Prox1 controls hepatic cholesterol metabolism. EMBO Rep 2023; 24:e55981. [PMID: 37560809 PMCID: PMC10561358 DOI: 10.15252/embr.202255981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 07/12/2023] [Accepted: 07/27/2023] [Indexed: 08/11/2023] Open
Abstract
Accumulation of excess nutrients hampers proper liver function and is linked to nonalcoholic fatty liver disease (NAFLD) in obesity. However, the signals responsible for an impaired adaptation of hepatocytes to obesogenic dietary cues remain still largely unknown. Post-translational modification by the small ubiquitin-like modifier (SUMO) allows for a dynamic regulation of numerous processes including transcriptional reprogramming. We demonstrate that specific SUMOylation of transcription factor Prox1 represents a nutrient-sensitive determinant of hepatic fasting metabolism. Prox1 is highly SUMOylated on lysine 556 in the liver of ad libitum and refed mice, while this modification is abolished upon fasting. In the context of diet-induced obesity, Prox1 SUMOylation becomes less sensitive to fasting cues. The hepatocyte-selective knock-in of a SUMOylation-deficient Prox1 mutant into mice fed a high-fat/high-fructose diet leads to a reduction of systemic cholesterol levels, associated with the induction of liver bile acid detoxifying pathways during fasting. The generation of tools to maintain the nutrient-sensitive SUMO-switch on Prox1 may thus contribute to the development of "fasting-based" approaches for the preservation of metabolic health.
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Affiliation(s)
- Ana Jimena Alfaro
- Institute for Diabetes and CancerHelmholtz MunichNeuherbergGermany
- Joint Heidelberg‐IDC Translational Diabetes Program, Inner Medicine 1Heidelberg University HospitalHeidelbergGermany
- German Center for Diabetes Research (DZD), and German Center for Cardiovascular Disease (DZHK)NeuherbergGermany
| | - Claudia Dittner
- Zentrum für Molekulare Biologie der Universität Heidelberg (ZMBH)Heidelberg University, DKFZ‐ZMBH AllianceHeidelbergGermany
| | - Janina Becker
- Zentrum für Molekulare Biologie der Universität Heidelberg (ZMBH)Heidelberg University, DKFZ‐ZMBH AllianceHeidelbergGermany
| | - Anne Loft
- Institute for Diabetes and CancerHelmholtz MunichNeuherbergGermany
- Joint Heidelberg‐IDC Translational Diabetes Program, Inner Medicine 1Heidelberg University HospitalHeidelbergGermany
- German Center for Diabetes Research (DZD), and German Center for Cardiovascular Disease (DZHK)NeuherbergGermany
- Center for Functional Genomics and Tissue Plasticity (ATLAS), SDUOdenseDenmark
| | - Amit Mhamane
- Institute for Diabetes and CancerHelmholtz MunichNeuherbergGermany
- Joint Heidelberg‐IDC Translational Diabetes Program, Inner Medicine 1Heidelberg University HospitalHeidelbergGermany
- German Center for Diabetes Research (DZD), and German Center for Cardiovascular Disease (DZHK)NeuherbergGermany
| | - Adriano Maida
- Institute for Diabetes and CancerHelmholtz MunichNeuherbergGermany
- Joint Heidelberg‐IDC Translational Diabetes Program, Inner Medicine 1Heidelberg University HospitalHeidelbergGermany
- German Center for Diabetes Research (DZD), and German Center for Cardiovascular Disease (DZHK)NeuherbergGermany
| | - Anastasia Georgiadi
- Institute for Diabetes and CancerHelmholtz MunichNeuherbergGermany
- Joint Heidelberg‐IDC Translational Diabetes Program, Inner Medicine 1Heidelberg University HospitalHeidelbergGermany
- German Center for Diabetes Research (DZD), and German Center for Cardiovascular Disease (DZHK)NeuherbergGermany
| | - Foivos‐Filippos Tsokanos
- Institute for Diabetes and CancerHelmholtz MunichNeuherbergGermany
- Joint Heidelberg‐IDC Translational Diabetes Program, Inner Medicine 1Heidelberg University HospitalHeidelbergGermany
- German Center for Diabetes Research (DZD), and German Center for Cardiovascular Disease (DZHK)NeuherbergGermany
| | - Katarina Klepac
- Institute for Diabetes and CancerHelmholtz MunichNeuherbergGermany
- Joint Heidelberg‐IDC Translational Diabetes Program, Inner Medicine 1Heidelberg University HospitalHeidelbergGermany
- German Center for Diabetes Research (DZD), and German Center for Cardiovascular Disease (DZHK)NeuherbergGermany
| | - Claudia‐Eveline Molocea
- Institute for Diabetes and CancerHelmholtz MunichNeuherbergGermany
- Joint Heidelberg‐IDC Translational Diabetes Program, Inner Medicine 1Heidelberg University HospitalHeidelbergGermany
- German Center for Diabetes Research (DZD), and German Center for Cardiovascular Disease (DZHK)NeuherbergGermany
| | - Rabih El‐Merahbi
- Institute for Diabetes and CancerHelmholtz MunichNeuherbergGermany
- Joint Heidelberg‐IDC Translational Diabetes Program, Inner Medicine 1Heidelberg University HospitalHeidelbergGermany
- German Center for Diabetes Research (DZD), and German Center for Cardiovascular Disease (DZHK)NeuherbergGermany
| | - Karsten Motzler
- Institute for Diabetes and CancerHelmholtz MunichNeuherbergGermany
- Joint Heidelberg‐IDC Translational Diabetes Program, Inner Medicine 1Heidelberg University HospitalHeidelbergGermany
- German Center for Diabetes Research (DZD), and German Center for Cardiovascular Disease (DZHK)NeuherbergGermany
| | - Julia Geppert
- Institute for Diabetes and CancerHelmholtz MunichNeuherbergGermany
- Joint Heidelberg‐IDC Translational Diabetes Program, Inner Medicine 1Heidelberg University HospitalHeidelbergGermany
- German Center for Diabetes Research (DZD), and German Center for Cardiovascular Disease (DZHK)NeuherbergGermany
| | - Rhoda Anane Karikari
- Institute for Diabetes and CancerHelmholtz MunichNeuherbergGermany
- Joint Heidelberg‐IDC Translational Diabetes Program, Inner Medicine 1Heidelberg University HospitalHeidelbergGermany
- German Center for Diabetes Research (DZD), and German Center for Cardiovascular Disease (DZHK)NeuherbergGermany
| | - Julia Szendrödi
- Joint Heidelberg‐IDC Translational Diabetes Program, Inner Medicine 1Heidelberg University HospitalHeidelbergGermany
- German Center for Diabetes Research (DZD), and German Center for Cardiovascular Disease (DZHK)NeuherbergGermany
| | | | - Susanna Hofmann
- Institute of Diabetes and Regeneration ResearchHelmholtz MunichNeuherbergGermany
| | - Samir Karaca
- Bioanalytical Mass Spectrometry GroupMax Planck Institute for Multidisciplinary SciencesGöttingenGermany
| | - Henning Urlaub
- Bioanalytical Mass Spectrometry GroupMax Planck Institute for Multidisciplinary SciencesGöttingenGermany
- Bioanalytics, Institute of Clinical ChemistryUniversity Medical Center GöttingenGöttingenGermany
| | - Mauricio Berriel Diaz
- Institute for Diabetes and CancerHelmholtz MunichNeuherbergGermany
- Joint Heidelberg‐IDC Translational Diabetes Program, Inner Medicine 1Heidelberg University HospitalHeidelbergGermany
- German Center for Diabetes Research (DZD), and German Center for Cardiovascular Disease (DZHK)NeuherbergGermany
| | - Frauke Melchior
- Zentrum für Molekulare Biologie der Universität Heidelberg (ZMBH)Heidelberg University, DKFZ‐ZMBH AllianceHeidelbergGermany
| | - Stephan Herzig
- Institute for Diabetes and CancerHelmholtz MunichNeuherbergGermany
- Joint Heidelberg‐IDC Translational Diabetes Program, Inner Medicine 1Heidelberg University HospitalHeidelbergGermany
- German Center for Diabetes Research (DZD), and German Center for Cardiovascular Disease (DZHK)NeuherbergGermany
- Chair Molecular Metabolic ControlTechnical University MunichMunichGermany
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Peng Z, Liang Y, Liu X, Shao J, Hu N, Zhang X. New insights into the mechanisms of diabetic kidney disease: Role of circadian rhythm and Bmal1. Biomed Pharmacother 2023; 166:115422. [PMID: 37660646 DOI: 10.1016/j.biopha.2023.115422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Revised: 08/30/2023] [Accepted: 08/30/2023] [Indexed: 09/05/2023] Open
Abstract
It is common for diabetic kidney disease (DKD) to be complicated by abnormal blood glucose, blood lipids, and blood pressure rhythms. Thus, it is essential to examine diagnostic and treatment plans from the perspective of circadian disruption. This brief review discusses the clinical relevance of circadian rhythms in DKD and how the core clock gene encoding brain and muscle arnt-like protein 1 (BMAL1) functions owing to the importance of circadian rhythm disruption processes, including the excretion of urinary protein and irregular blood pressure, which occur in DKD. Exploring Bmal1 and its potential mechanisms and signaling pathways in DKD following contact with Sirt1 and NF-κB is novel and important. Finally, potential pharmacological and behavioral intervention strategies for DKD circadian rhythm disturbance are outlined. This review aids in unveiling novel, potential molecular targets for DKD based on circadian rhythms.
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Affiliation(s)
- Zhimei Peng
- Department of Nephrology, The Second Clinical College of Jinan University, Shenzhen People's Hospital, Shenzhen, China; Shenzhen Key Laboratory of Kidney Diseases, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, China.
| | - Yanting Liang
- Department of Nephrology, The Second Clinical College of Jinan University, Shenzhen People's Hospital, Shenzhen, China.
| | - Xueying Liu
- Shenzhen Key Laboratory of Kidney Diseases, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, China.
| | - Jie Shao
- Department of Nephrology, The Second Clinical College of Jinan University, Shenzhen People's Hospital, Shenzhen, China.
| | - Nan Hu
- Shenzhen Key Laboratory of Kidney Diseases, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, China.
| | - Xinzhou Zhang
- Department of Nephrology, The Second Clinical College of Jinan University, Shenzhen People's Hospital, Shenzhen, China; Shenzhen Key Laboratory of Kidney Diseases, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, China.
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44
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Mitchell JW, Gillette MU. Development of circadian neurovascular function and its implications. Front Neurosci 2023; 17:1196606. [PMID: 37732312 PMCID: PMC10507717 DOI: 10.3389/fnins.2023.1196606] [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: 03/30/2023] [Accepted: 08/14/2023] [Indexed: 09/22/2023] Open
Abstract
The neurovascular system forms the interface between the tissue of the central nervous system (CNS) and circulating blood. It plays a critical role in regulating movement of ions, small molecules, and cellular regulators into and out of brain tissue and in sustaining brain health. The neurovascular unit (NVU), the cells that form the structural and functional link between cells of the brain and the vasculature, maintains the blood-brain interface (BBI), controls cerebral blood flow, and surveils for injury. The neurovascular system is dynamic; it undergoes tight regulation of biochemical and cellular interactions to balance and support brain function. Development of an intrinsic circadian clock enables the NVU to anticipate rhythmic changes in brain activity and body physiology that occur over the day-night cycle. The development of circadian neurovascular function involves multiple cell types. We address the functional aspects of the circadian clock in the components of the NVU and their effects in regulating neurovascular physiology, including BBI permeability, cerebral blood flow, and inflammation. Disrupting the circadian clock impairs a number of physiological processes associated with the NVU, many of which are correlated with an increased risk of dysfunction and disease. Consequently, understanding the cell biology and physiology of the NVU is critical to diminishing consequences of impaired neurovascular function, including cerebral bleeding and neurodegeneration.
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Affiliation(s)
- Jennifer W. Mitchell
- Department of Cell and Developmental Biology, University of Illinois Urbana-Champaign, Urbana, IL, United States
- Neuroscience Program, University of Illinois Urbana-Champaign, Urbana, IL, United States
- Beckman Institute for Advanced Science and Technology, University of Illinois Urbana-Champaign, Urbana, IL, United States
| | - Martha U. Gillette
- Department of Cell and Developmental Biology, University of Illinois Urbana-Champaign, Urbana, IL, United States
- Neuroscience Program, University of Illinois Urbana-Champaign, Urbana, IL, United States
- Beckman Institute for Advanced Science and Technology, University of Illinois Urbana-Champaign, Urbana, IL, United States
- Department of Molecular and Integrative Physiology, University of Illinois Urbana-Champaign, Urbana, IL, United States
- Carle-Illinois College of Medicine, University of Illinois Urbana-Champaign, Urbana, IL, United States
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45
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Hermanstyne TO, Yang ND, Granados-Fuentes D, Li X, Mellor RL, Jegla T, Herzog ED, Nerbonne JM. Kv12-encoded K+ channels drive the day-night switch in the repetitive firing rates of SCN neurons. J Gen Physiol 2023; 155:e202213310. [PMID: 37516908 PMCID: PMC10373311 DOI: 10.1085/jgp.202213310] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 05/11/2023] [Accepted: 07/06/2023] [Indexed: 07/31/2023] Open
Abstract
Considerable evidence suggests that day-night rhythms in the functional expression of subthreshold potassium (K+) channels regulate daily oscillations in the spontaneous firing rates of neurons in the suprachiasmatic nucleus (SCN), the master circadian pacemaker in mammals. The K+ conductance(s) driving these daily rhythms in the repetitive firing rates of SCN neurons, however, have not been identified. To test the hypothesis that subthreshold Kv12.1/Kv12.2-encoded K+ channels play a role, we obtained current-clamp recordings from SCN neurons in slices prepared from adult mice harboring targeted disruptions in the Kcnh8 (Kv12.1-/-) or Kcnh3 (Kv12.2-/-) locus. We found that mean nighttime repetitive firing rates were higher in Kv12.1-/- and Kv12.2-/- than in wild type (WT), SCN neurons. In marked contrast, mean daytime repetitive firing rates were similar in Kv12.1-/-, Kv12.2-/-, and WT SCN neurons, and the day-night difference in mean repetitive firing rates, a hallmark feature of WT SCN neurons, was eliminated in Kv12.1-/- and Kv12.2-/- SCN neurons. Similar results were obtained with in vivo shRNA-mediated acute knockdown of Kv12.1 or Kv12.2 in adult SCN neurons. Voltage-clamp experiments revealed that Kv12-encoded current densities in WT SCN neurons are higher at night than during the day. In addition, the pharmacological block of Kv12-encoded currents increased the mean repetitive firing rate of nighttime, but not daytime, in WT SCN neurons. Dynamic clamp-mediated subtraction of modeled Kv12-encoded currents also selectively increased the mean repetitive firing rates of nighttime WT SCN neurons. Despite the elimination of the nighttime decrease in the mean repetitive firing rates of SCN neurons, however, locomotor (wheel-running) activity remained rhythmic in Kv12.1-/-, Kv12.2-/-, and Kv12.1-targeted shRNA-expressing, and Kv12.2-targeted shRNA-expressing animals.
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Affiliation(s)
- Tracey O. Hermanstyne
- Department of Developmental Biology, Washington University School of Medicine, St. Louis, MO, USA
| | - Nien-Du Yang
- Cardiovascular Division, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
- Department of Biomedical Engineering, Washington University, St. Louis, MO, USA
| | | | - Xiaofan Li
- Department of Biology, The Pennsylvania State University, University Park, State College, PA, USA
| | - Rebecca L. Mellor
- Cardiovascular Division, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
| | - Timothy Jegla
- Department of Biology, The Pennsylvania State University, University Park, State College, PA, USA
| | - Erik D. Herzog
- Department of Biology, Washington University, St. Louis, MO, USA
| | - Jeanne M. Nerbonne
- Department of Developmental Biology, Washington University School of Medicine, St. Louis, MO, USA
- Cardiovascular Division, Department of Medicine, Washington University School of Medicine, St. Louis, MO, USA
- Department of Biomedical Engineering, Washington University, St. Louis, MO, USA
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Burtscher J, Hohenauer E, Burtscher M, Millet GP, Egg M. Environmental and behavioral regulation of HIF-mitochondria crosstalk. Free Radic Biol Med 2023; 206:63-73. [PMID: 37385566 DOI: 10.1016/j.freeradbiomed.2023.06.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 06/05/2023] [Accepted: 06/19/2023] [Indexed: 07/01/2023]
Abstract
Reduced oxygen availability (hypoxia) can lead to cell and organ damage. Therefore, aerobic species depend on efficient mechanisms to counteract detrimental consequences of hypoxia. Hypoxia inducible factors (HIFs) and mitochondria are integral components of the cellular response to hypoxia and coordinate both distinct and highly intertwined adaptations. This leads to reduced dependence on oxygen, improved oxygen supply, maintained energy provision by metabolic remodeling and tapping into alternative pathways and increased resilience to hypoxic injuries. On one hand, many pathologies are associated with hypoxia and hypoxia can drive disease progression, for example in many cancer and neurological diseases. But on the other hand, controlled induction of hypoxia responses via HIFs and mitochondria can elicit profound health benefits and increase resilience. To tackle pathological hypoxia conditions or to apply health-promoting hypoxia exposures efficiently, cellular and systemic responses to hypoxia need to be well understood. Here we first summarize the well-established link between HIFs and mitochondria in orchestrating hypoxia-induced adaptations and then outline major environmental and behavioral modulators of their interaction that remain poorly understood.
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Affiliation(s)
- Johannes Burtscher
- Institute of Sport Sciences, University of Lausanne, Lausanne, Switzerland.
| | - Erich Hohenauer
- Rehabilitation and Exercise Science Laboratory (RES Lab), Department of Business Economics, Health and Social Care, University of Applied Sciences and Arts of Southern Switzerland, Landquart, Switzerland; International University of Applied Sciences THIM, Landquart, Switzerland; Department of Neurosciences and Movement Science, University of Fribourg, Fribourg, Switzerland; Department of Movement and Sport Sciences, Vrije Universiteit Brussel, Brussels, Belgium
| | - Martin Burtscher
- Department of Sport Science, University of Innsbruck, Innsbruck, Austria
| | - Grégoire P Millet
- Institute of Sport Sciences, University of Lausanne, Lausanne, Switzerland
| | - Margit Egg
- Institute of Zoology, University of Innsbruck, Innsbruck, Austria
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47
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Saiz N, Herrera-Castillo L, Gómez-Boronat M, Delgado MJ, Isorna E, de Pedro N. Daily rhythms of REV-ERBα and its role as transcriptional repressor of clock genes in fish hepatic oscillator. Comp Biochem Physiol A Mol Integr Physiol 2023; 283:111458. [PMID: 37290737 DOI: 10.1016/j.cbpa.2023.111458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Revised: 05/29/2023] [Accepted: 06/01/2023] [Indexed: 06/10/2023]
Abstract
The REV-ERBα nuclear receptor is a key component of the molecular machinery of circadian oscillators in mammals. While the rhythmic expression of this receptor has been described in teleosts, several critical aspects of its regulation remain unknown, such as which synchronizers entrain its rhythm, and whether it can modulate the expression of other clock genes. The objective of this study was to gain deeper understanding of the role of REV-ERBα in the fish circadian system. To this end, we first investigated the cues that entrain the rhythm of rev-erbα expression in the goldfish (Carassius auratus) liver and hypothalamus. A 12-h shift in feeding time induced a parallel shift in the hepatic rhythm of rev-erbα expression, confirming that this gene is food-entrainable in the goldfish liver. In contrast, light seems the main driver of rev-erbα rhythmic expression in the hypothalamus. Next, we examined the effects of REV-ERBα activation on locomotor activity and hepatic expression of clock genes. Subchronic treatment with the REV-ERBα agonist SR9009 slightly decreased locomotor activity anticipating light onset and food arrival, and downregulated hepatic bmal1a, clock1a, cry1a, per1a and pparα expression. This generalized repressing action of REV-ERBα on the expression of hepatic clock genes was confirmed in vitro by using agonists (SR9009 and GSK4112) and antagonist (SR8278) of this receptor. Overall, the present work reveals that REV-ERBα modulates the daily expression of the main genes of the teleostean liver clock, reinforcing its role in the liver temporal homeostasis, which seems highly conserved in both fish and mammals.
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Affiliation(s)
- Nuria Saiz
- Department of Genetics, Physiology and Microbiology, Faculty of Biological Sciences, Complutense University of Madrid, Spain
| | - Lisbeth Herrera-Castillo
- Department of Genetics, Physiology and Microbiology, Faculty of Biological Sciences, Complutense University of Madrid, Spain
| | - Miguel Gómez-Boronat
- Department of Genetics, Physiology and Microbiology, Faculty of Biological Sciences, Complutense University of Madrid, Spain
| | - María Jesús Delgado
- Department of Genetics, Physiology and Microbiology, Faculty of Biological Sciences, Complutense University of Madrid, Spain
| | - Esther Isorna
- Department of Genetics, Physiology and Microbiology, Faculty of Biological Sciences, Complutense University of Madrid, Spain
| | - Nuria de Pedro
- Department of Genetics, Physiology and Microbiology, Faculty of Biological Sciences, Complutense University of Madrid, Spain.
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48
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Cheng Y, Chi Y, Sun L, Wang GZ. Dominant constraints on the evolution of rhythmic gene expression. Comput Struct Biotechnol J 2023; 21:4301-4311. [PMID: 37692081 PMCID: PMC10492206 DOI: 10.1016/j.csbj.2023.08.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 08/21/2023] [Accepted: 08/31/2023] [Indexed: 09/12/2023] Open
Abstract
Although the individual transcriptional regulators of the core circadian clock are distinct among different organisms, the autoregulatory feedback loops they form are conserved. This unified design principle explains how daily physiological activities oscillate across species. However, it is unknown whether analogous design principles govern the gene expression output of circadian clocks. In this study, we performed a comparative analysis of rhythmic gene expression in eight diverse species and identified four common distribution patterns of cycling gene expression across these species. We hypothesized that the maintenance of reduced energetic costs constrains the evolution of rhythmic gene expression. Our large-scale computational simulations support this hypothesis by showing that selection against high-energy expenditure completely regenerates all cycling gene patterns. Moreover, we find that the peaks of rhythmic expression have been subjected to this type of selective pressure. The results suggest that selective pressure from circadian regulation efficiently removes unnecessary gene products from the transcriptome, thereby significantly impacting its evolutionary path.
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Affiliation(s)
| | | | | | - Guang-Zhong Wang
- CAS Key Laboratory of Computational Biology, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200031, China
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49
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He L, Wu B, Shi J, Du J, Zhao Z. Regulation of feeding and energy homeostasis by clock-mediated Gart in Drosophila. Cell Rep 2023; 42:112912. [PMID: 37531254 DOI: 10.1016/j.celrep.2023.112912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 05/19/2023] [Accepted: 07/16/2023] [Indexed: 08/04/2023] Open
Abstract
Feeding behavior is essential for growth and survival of animals; however, relatively little is known about its intrinsic mechanisms. Here, we demonstrate that Gart is expressed in the glia, fat body, and gut and positively regulates feeding behavior via cooperation and coordination. Gart in the gut is crucial for maintaining endogenous feeding rhythms and food intake, while Gart in the glia and fat body regulates energy homeostasis between synthesis and metabolism. These roles of Gart further impact Drosophila lifespan. Importantly, Gart expression is directly regulated by the CLOCK/CYCLE heterodimer via canonical E-box, in which the CLOCKs (CLKs) in the glia, fat body, and gut positively regulate Gart of peripheral tissues, while the core CLK in brain negatively controls Gart of peripheral tissues. This study provides insight into the complex and subtle regulatory mechanisms of feeding and lifespan extension in animals.
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Affiliation(s)
- Lei He
- Department of Entomology and MOA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, Beijing 100193, P.R. China
| | - Binbin Wu
- Department of Neuroscience, The Herbert Wertheim UF Scripps Institute for Biomedical Innovation & Technology, University of Florida, Jupiter, FL 33458, USA
| | - Jian Shi
- Department of Entomology and MOA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, Beijing 100193, P.R. China
| | - Juan Du
- Department of Entomology and MOA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, Beijing 100193, P.R. China
| | - Zhangwu Zhao
- Department of Entomology and MOA Key Lab of Pest Monitoring and Green Management, College of Plant Protection, China Agricultural University, Beijing 100193, P.R. China; College of Life Science, Institute of Life Science and Green Development, Hebei University, Baoding 071002, P.R. China.
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50
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Xu W, Li X. Regulation of Pol II Pausing during Daily Gene Transcription in Mouse Liver. BIOLOGY 2023; 12:1107. [PMID: 37626993 PMCID: PMC10452108 DOI: 10.3390/biology12081107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 07/20/2023] [Accepted: 08/03/2023] [Indexed: 08/27/2023]
Abstract
Cell autonomous circadian oscillation is present in central and various peripheral tissues. The intrinsic tissue clock and various extrinsic cues drive gene expression rhythms. Transcription regulation is thought to be the main driving force for gene rhythms. However, how transcription rhythms arise remains to be fully characterized due to the fact that transcription is regulated at multiple steps. In particular, Pol II recruitment, pause release, and premature transcription termination are critical regulatory steps that determine the status of Pol II pausing and transcription output near the transcription start site (TSS) of the promoter. Recently, we showed that Pol II pausing exhibits genome-wide changes during daily transcription in mouse liver. In this article, we review historical as well as recent findings on the regulation of transcription rhythms by the circadian clock and other transcription factors, and the potential limitations of those results in explaining rhythmic transcription at the TSS. We then discuss our results on the genome-wide characteristics of daily changes in Pol II pausing, the possible regulatory mechanisms involved, and their relevance to future research on circadian transcription regulation.
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Affiliation(s)
| | - Xiaodong Li
- College of Life Sciences, Wuhan University, Wuhan 430072, China;
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