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Kulsoom K, Ali W, Saba Z, Hussain S, Zahra S, Irshad M, Ramzan MS. Revealing Melatonin's Mysteries: Receptors, Signaling Pathways, and Therapeutics Applications. Horm Metab Res 2024; 56:405-418. [PMID: 38081221 DOI: 10.1055/a-2226-3971] [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] [Indexed: 02/21/2024]
Abstract
Melatonin (5-methoxy-acetyl tryptamine) is a sleep-inducing hormone, and the pineal gland produces it in response to the circadian clock of darkness. In the body, MT1 and MT2 receptors are mostly found, having an orthosteric pocket and ligand binding determinants. Melatonin acts by binding on melatonin receptors, intracellular proteins, and orphan nuclear receptors. It inhibits adenyl cyclase and activates phospholipase C, resulting in gene expression and an intracellular alteration environment. Melatonin signaling pathways are also associated with other intracellular signaling pathways, i. e., cAMP/PKA and MAPK/ERK pathways. Relative expression of different proteins depends on the coupling profile of G protein, accounting pharmacology of the melatonin receptor bias system, and mediates action in a Gi-dependent manner. It shows antioxidant, antitumor, antiproliferative, and neuroprotective activity. Different types of melatonin agonists have been synthesized for the treatment of sleeping disorders. Researchers have developed therapeutics that target melatonin signaling, which could benefit a wide range of medical conditions. This review focuses on melatonin receptors, pharmacology, and signaling cascades; it aims to provide basic mechanical aspects of the receptor's pharmacology, melatonin's functions in cancer and neurodegenerative diseases, and any treatments and drugs designed for these diseases. This will allow a basic comparison between the receptors in question, highlighting any parallels and differences that may exist and providing fundamental knowledge about these receptors to future researchers.
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Affiliation(s)
- Kulsoom Kulsoom
- Department of Biochemistry, Bahauddin Zakariya University, Multan, Pakistan
| | - Wajahat Ali
- School of Basic Medical Sciences, Xi'an Jiaotong University, Xian, China
| | - Zainab Saba
- Department of Optometry, Khwaja Fareed University of Engineering & Information Technology, Rahim Yar Khan, Pakistan
| | - Shabab Hussain
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, Universita degli studi di Messina, Messina, Italy
| | - Samra Zahra
- Department of Biosciences, COMSATS University Islamabad, Pakistan
| | - Maria Irshad
- Department of Medical, Surgical and Health Sciences, University of Trieste, Trieste, Italy
| | - Muhammad Saeed Ramzan
- Department of Pharmacology, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
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Khafaji AWM, Al-Zubaidy AAK, Farhood IG, Salman HR. Ameliorative effects of topical ramelteon on imiquimod-induced psoriasiform inflammation in mice. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024:10.1007/s00210-024-03017-7. [PMID: 38446218 DOI: 10.1007/s00210-024-03017-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Accepted: 02/19/2024] [Indexed: 03/07/2024]
Abstract
Psoriasis is a long-lasting, immune-related inflammatory skin disease that affects 2-3% of the global population. It is distinguished by erythematous, silvery, and scaly patches. Ramelteon is a type of melatonin agonist that is used to treat insomnia. It has enhanced non-classical immunomodulatory and anti-inflammatory activities. The aim of the study is to assess the ameliorative effects of topical ramelteon on imiquimod (IMQ)-aggravated psoriasiform-like dermatosis in mice. The 32 albino mouse males were placed into six groups of eight animals, all of them. With the exception of the control group, all groups gained a once-a-day regimen of topical imiquimod 5% cream at a dose of 62.5 mg for eight uninterrupted days, while mice in the control group gained vaseline-based ointment alternately. Immediately after an 8-day induction period in the imiquimod group, mice in the clobetasol and ramelteon treatment groups obtained a twice-daily regimen of topical clobetasol propionate 0.05% ointment and 0.1% ointment, respectively, for a further 8 days. This extends the total duration of the experimental study to 16 continuous days. The findings of our study found that ramelteon significantly mitigated the concentrations of inflammatory cytokines in the skin tissue, including interleukin (IL)-6, IL-17A, IL-23, tumor necrosis factor-α (TNF-α), and vascular endothelial growth factor (VEGF), as well as the scores associated with psoriatic lesions, including erythema, scaling, skin thickening, ear thickness, and overall cumulative PASI scores. Additionally, the anti-inflammatory impact of ramelteon was achieved by markedly increasing IL-10 levels in the skin tissue and correcting cutaneous histopathological alterations. Ramelteon ointment (0.1%) was comparable to that of clobetasol (0.05%) ointment in alleviating a mouse model of imiquimod-induced psoriasiform inflammation; this is probably due to its potential anti-inflammatory and immunomodulatory activities. Therefore, ramelteon could be a good additive option for therapeutic management of immune-triggered inflammatory conditions such as psoriasis.
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Affiliation(s)
| | | | - Iqbal Ghalib Farhood
- Section of Dermatology and Venereology, Department of Medicine, College of Medicine, Al-Nahrain University, Baghdad, Iraq
| | - Hayder Ridha Salman
- Department of Pharmacology, College of Pharmacy, Al-Mustaqbal University, 510001, Hillah, Iraq
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Li T, Liu Z, Wang Y, Zuo D, Wang S, Ju H, Wang S, Xing Y, Ling Y, Liu C, Zhang Y, Zhou H, Yin J, Cao J, Gao J. Multiplexed Visualization Method to Explore Complete Targeting Regulatory Relationships Among Circadian Genes for Insomnia Treatment. Front Neurosci 2022; 16:877802. [PMID: 35844237 PMCID: PMC9285005 DOI: 10.3389/fnins.2022.877802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 06/01/2022] [Indexed: 11/24/2022] Open
Abstract
Understanding the complete map of melatonin synthesis, the information transfer network among circadian genes in pineal gland, promises to resolve outstanding issues in endocrine systems and improve the clinical diagnosis and treatment level of insomnia, immune disease and hysterical depression. Currently, some landmark studies have revealed some genes that regulate circadian rhythm associated with melatonin synthesis. However, these studies don't give a complete map of melatonin synthesis, as transfer information among circadian genes in pineal gland is lost. New biotechnology, integrates dynamic sequential omics and multiplexed imaging method, has been used to visualize the complete process of melatonin synthesis. It is found that there are two extremely significant information transfer processes involved in melatonin synthesis. In the first stage, as the light intensity decreased, melatonin synthesis mechanism has started, which is embodied in circadian genes, Rel, Polr2A, Mafk, and Srbf1 become active. In the second stage, circadian genes Hif1a, Bach1, Clock, E2f6, and Per2 are regulated simultaneously by four genes, Rel, Polr2A, Mafk, and Srbf1 and contribute genetic information to Aanat. The expeditious growth in this technique offer reference for an overall understanding of gene-to-gene regulatory relationship among circadian genes in pineal gland. In the study, dynamic sequential omics and the analysis process well provide the current state and future perspectives to better diagnose and cure diseases associated with melatonin synthesis disorder.
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Affiliation(s)
- Tao Li
- Inner Mongolia Key Laboratory of Bio-manufacture, College of Life Sciences, Inner Mongolia Agricultural University, Hohhot, China
- *Correspondence: Tao Li
| | - Zhenyu Liu
- Inner Mongolia Autonomous Region Key Laboratory of Big Data Research and Application of Agriculture and Animal Husbandry, College of Computer and Information Engineering, Inner Mongolia Agricultural University, Hohhot, China
| | - Yitong Wang
- Department of Neurosurgery, Beijing Hospital, Beijing, China
| | - Dongshi Zuo
- Inner Mongolia Autonomous Region Key Laboratory of Big Data Research and Application of Agriculture and Animal Husbandry, College of Computer and Information Engineering, Inner Mongolia Agricultural University, Hohhot, China
| | - Shenyuan Wang
- Inner Mongolia Key Laboratory of Bio-manufacture, College of Life Sciences, Inner Mongolia Agricultural University, Hohhot, China
| | - Haitao Ju
- Department of Neurosurgery, Affiliated Hospital of Inner Mongolia Medical University, Hohhot, China
| | - Shichao Wang
- Clinical Genetic Laboratory, First Hospital of Hohhot, Hohhot, China
| | - Yanping Xing
- Inner Mongolia Key Laboratory of Bio-manufacture, College of Life Sciences, Inner Mongolia Agricultural University, Hohhot, China
| | - Yu Ling
- Inner Mongolia Key Laboratory of Bio-manufacture, College of Life Sciences, Inner Mongolia Agricultural University, Hohhot, China
| | - Chunxia Liu
- Inner Mongolia Key Laboratory of Bio-manufacture, College of Life Sciences, Inner Mongolia Agricultural University, Hohhot, China
| | - Yanru Zhang
- Inner Mongolia Key Laboratory of Bio-manufacture, College of Life Sciences, Inner Mongolia Agricultural University, Hohhot, China
| | - Huanmin Zhou
- Inner Mongolia Key Laboratory of Bio-manufacture, College of Life Sciences, Inner Mongolia Agricultural University, Hohhot, China
| | - Jun Yin
- Inner Mongolia Key Laboratory of Bio-manufacture, College of Life Sciences, Inner Mongolia Agricultural University, Hohhot, China
| | - Junwei Cao
- Inner Mongolia Key Laboratory of Bio-manufacture, College of Life Sciences, Inner Mongolia Agricultural University, Hohhot, China
- Junwei Cao
| | - Jing Gao
- Inner Mongolia Autonomous Region Key Laboratory of Big Data Research and Application of Agriculture and Animal Husbandry, College of Computer and Information Engineering, Inner Mongolia Agricultural University, Hohhot, China
- Jing Gao
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Brown MR, Laouteouet D, Delobel M, Villard O, Broca C, Bertrand G, Wojtusciszyn A, Dalle S, Ravier MA, Matveyenko AV, Costes S. The nuclear receptor REV-ERBα is implicated in the alteration of β-cell autophagy and survival under diabetogenic conditions. Cell Death Dis 2022; 13:353. [PMID: 35428762 PMCID: PMC9012816 DOI: 10.1038/s41419-022-04767-z] [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: 07/05/2021] [Revised: 03/16/2022] [Accepted: 03/25/2022] [Indexed: 01/07/2023]
Abstract
Pancreatic β-cell failure in type 2 diabetes mellitus (T2DM) is associated with impaired regulation of autophagy which controls β-cell development, function, and survival through clearance of misfolded proteins and damaged organelles. However, the mechanisms responsible for defective autophagy in T2DM β-cells remain unknown. Since recent studies identified circadian clock transcriptional repressor REV-ERBα as a novel regulator of autophagy in cancer, in this study we set out to test whether REV-ERBα-mediated inhibition of autophagy contributes to the β-cell failure in T2DM. Our study provides evidence that common diabetogenic stressors (e.g., glucotoxicity and cytokine-mediated inflammation) augment β-cell REV-ERBα expression and impair β-cell autophagy and survival. Notably, pharmacological activation of REV-ERBα was shown to phenocopy effects of diabetogenic stressors on the β-cell through inhibition of autophagic flux, survival, and insulin secretion. In contrast, negative modulation of REV-ERBα was shown to provide partial protection from inflammation and glucotoxicity-induced β-cell failure. Finally, using bioinformatic approaches, we provide further supporting evidence for augmented REV-ERBα activity in T2DM human islets associated with impaired transcriptional regulation of autophagy and protein degradation pathways. In conclusion, our study reveals a previously unexplored causative relationship between REV-ERBα expression, inhibition of autophagy, and β-cell failure in T2DM.
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Affiliation(s)
- Matthew R. Brown
- grid.66875.3a0000 0004 0459 167XDepartment of Physiology and Biomedical Engineering, Mayo Clinic School of Medicine, Mayo Clinic, Rochester, MN USA
| | - Damien Laouteouet
- grid.121334.60000 0001 2097 0141Institute of Functional Genomics, University of Montpellier, CNRS, INSERM, Montpellier, France
| | - Morgane Delobel
- grid.121334.60000 0001 2097 0141Institute of Functional Genomics, University of Montpellier, CNRS, INSERM, Montpellier, France
| | - Orianne Villard
- grid.157868.50000 0000 9961 060XLaboratory of Cell Therapy for Diabetes (LTCD), PRIMS facility, Institute for Regenerative Medicine and Biotherapy (IRMB), University hospital of Montpellier, Montpellier, France ,grid.157868.50000 0000 9961 060XDepartment of Endocrinology, Diabetes, and Nutrition, University Hospital of Montpellier, Montpellier, France
| | - Christophe Broca
- grid.157868.50000 0000 9961 060XLaboratory of Cell Therapy for Diabetes (LTCD), PRIMS facility, Institute for Regenerative Medicine and Biotherapy (IRMB), University hospital of Montpellier, Montpellier, France
| | - Gyslaine Bertrand
- grid.121334.60000 0001 2097 0141Institute of Functional Genomics, University of Montpellier, CNRS, INSERM, Montpellier, France
| | - Anne Wojtusciszyn
- grid.121334.60000 0001 2097 0141Institute of Functional Genomics, University of Montpellier, CNRS, INSERM, Montpellier, France ,grid.157868.50000 0000 9961 060XLaboratory of Cell Therapy for Diabetes (LTCD), PRIMS facility, Institute for Regenerative Medicine and Biotherapy (IRMB), University hospital of Montpellier, Montpellier, France ,grid.157868.50000 0000 9961 060XDepartment of Endocrinology, Diabetes, and Nutrition, University Hospital of Montpellier, Montpellier, France
| | - Stéphane Dalle
- grid.121334.60000 0001 2097 0141Institute of Functional Genomics, University of Montpellier, CNRS, INSERM, Montpellier, France
| | - Magalie A. Ravier
- grid.121334.60000 0001 2097 0141Institute of Functional Genomics, University of Montpellier, CNRS, INSERM, Montpellier, France
| | - Aleksey V. Matveyenko
- grid.66875.3a0000 0004 0459 167XDepartment of Physiology and Biomedical Engineering, Mayo Clinic School of Medicine, Mayo Clinic, Rochester, MN USA ,grid.66875.3a0000 0004 0459 167XDivision of Endocrinology, Metabolism, Diabetes, and Nutrition, Department of Medicine, Mayo Clinic, Rochester, MN USA
| | - Safia Costes
- grid.121334.60000 0001 2097 0141Institute of Functional Genomics, University of Montpellier, CNRS, INSERM, Montpellier, France
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Wang G, Tian F, Li Y, Liu Y, Liu C. Ramelteon Mitigates Free Fatty Acid (FFA)-Induced Attachment of Monocytes to Brain Vascular Endothelial Cells. Neurotox Res 2021; 39:1937-1945. [PMID: 34792763 DOI: 10.1007/s12640-021-00422-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 09/09/2021] [Accepted: 09/17/2021] [Indexed: 11/25/2022]
Abstract
Acute ischemic stroke is a challenging disease that threatens the life of older people. Dysfunction of brain endothelial cells is reported to be involved in the pathogenesis of acute ischemic stroke. Ramelteon is a novel agonist of melatonin receptor developed for the treatment of insomnia. Recently, the promising protective effect of Ramelteon on brain injury has been widely reported. The present study aims to investigate the protective effect of Ramelteon against free fatty acid (FFA)-induced damages in brain vascular endothelial cells and the underlying mechanism. Firstly, we discovered that Ramelteon administration remarkably reversed the decreased cell viability, increased LDH release, activated oxidative stress, and excessive released inflammatory factors caused by FFAs. Secondly, Ramelteon extensively suppressed the attachment of U937 monocytes to bEnd.3 brain endothelial cells induced by FFAs. In addition, the elevated expression of E-selectin and the reduced expression of KLF2 induced by FFAs were pronouncedly alleviated by Ramelteon. Lastly, silencing of KLF2 abolished the protective effects of Ramelteon against FFA-induced expression of E-selectin and the attachment of U937 monocytes to bEnd.3 brain endothelial cells. In conclusion, Ramelteon mitigated FFA-induced attachment of monocytes to brain vascular endothelial cells by increasing the expression of KLF2 and reducing the expression of E-selectin.
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Affiliation(s)
- Guijie Wang
- Department of Internal Medicine-Neurology, the Second Affiliated Hospital of Soochow University, Suzhou, 215004, Jiangsu, China
| | - Fang Tian
- Department of General Medicine, Zhuhai People's Hospital, Zhuhai, Guangdong, 519000, China
| | - Yu Li
- Department of Neurosurgery, Zhuhai People's Hospital, Zhuhai, Guangdong, 519000, China
| | - Yang Liu
- Department of Internal Medicine-Neurology, the Fifth Affiliated Hospital of Zunyi Medical University, Zhuhai, 519041, Guangdong, China
| | - Chunfeng Liu
- Department of Internal Medicine-Neurology, the Second Affiliated Hospital of Soochow University, Suzhou, 215004, Jiangsu, China.
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Liu D, Gu X, Han F, Cai M, Liu W, Han L, Ma Q. The protective effects of Ramelteon against 6-OHDA-induced cellular senescence in human SH-SY5Y neuronal cells. Brain Behav 2021; 11:e2278. [PMID: 34296537 PMCID: PMC8413758 DOI: 10.1002/brb3.2278] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 05/24/2021] [Accepted: 06/24/2021] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND AND PURPOSE Parkinson's disease (PD) is a severe neurodegenerative disease with high morbidity in the elderly population. 6-OHDA-induced cell senescence is reported to be involved in the pathogenesis of PD. Ramelteon is an oral hypnotic agent that specifically targets the receptors of the suprachiasmatic nucleus in the human hypothalamus. Here, an investigation is made to see whether Ramelteon possesses a beneficial effect against 6-OHDA-induced cellular senescence in human SH-SY5Y neuronal cells. METHODS The release of LDH was detected to assess cytotoxicity and flow cytometry was conducted to evaluate the cell cycle. The telomerase activity and the SA-β-Gal assay were performed to determine the state of cell senescence. Oxidative stress was evaluated by detecting the release of H2 O2 . The expressions of p21, p53, and Nrf2 were measured using the qRT-PCR and Western blotting assay. siRNA technology was used to knock down the expression level of Nrf2 in SH-SY5Y neuronal cells. RESULTS First, it was found that Ramelteon mitigated cell cycle arrest in the G0/G1 phase in 6-OHDA-challenged SH-SY5Y neuronal cells. Second, treatment with Ramelteon alleviated cellular senescence in 6-OHDA-treated SH-SY5Y neuronal cells by increasing telomerase activity and reducing the activity of SA-β-gal. It was also found that Ramelteon reduced the expressions of p21 and p53. Notably, Ramelteon attenuated 6-OHDA-induced oxidative stress by increasing the expression of Nrf2. Silencing of Nrf2 abolished the protective effects of Ramelteon against 6-OHDA-induced cellular senescence. Based on these findings, it was concluded that Ramelteon alleviated 6-OHDA-induced cellular senescence by increasing the expression of Nrf2 in human SH-SY5Y neuronal cells. CONCLUSION Ramelteon protected against 6-OHDA-induced cellular senescence in human SH-SY5Y neuronal cells through activating the Nrf2 signaling pathway.
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Affiliation(s)
- Dan Liu
- Department of Neurology, The Affiliated ZhongShan Hospital of Dalian University, Dalian, China
| | - Xinyi Gu
- Department of Neurology, The Affiliated ZhongShan Hospital of Dalian University, Dalian, China
| | - Fang Han
- Department of Imaging, The Affiliated ZhongShan Hospital of Dalian University, Dalian, China
| | - Ming Cai
- Department of Neurology, The Affiliated ZhongShan Hospital of Dalian University, Dalian, China
| | - Weijie Liu
- Department of Neurology, The Affiliated ZhongShan Hospital of Dalian University, Dalian, China
| | - Li Han
- Department of Neurology, The Affiliated ZhongShan Hospital of Dalian University, Dalian, China
| | - Qiang Ma
- Department of Neurology, The Affiliated ZhongShan Hospital of Dalian University, Dalian, China
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Owczarek A, Gieczewska KB, Polanska M, Paterczyk B, Gruza A, Winiarska K. Melatonin Lowers HIF-1α Content in Human Proximal Tubular Cells (HK-2) Due to Preventing Its Deacetylation by Sirtuin 1. Front Physiol 2021; 11:572911. [PMID: 33519498 PMCID: PMC7841413 DOI: 10.3389/fphys.2020.572911] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 12/17/2020] [Indexed: 12/17/2022] Open
Abstract
Although melatonin is widely known for its nephroprotective properties, there are no reports clearly pointing at its impact on the activity of hypoxia-inducible factor-1 (HIF-1), the main mediator of metabolic responses to hypoxia, in kidneys. The aim of the present study was to elucidate how melatonin affects the expression of the regulatory subunit HIF-1α in renal proximal tubules. HK-2 cells, immortalized human proximal tubular cells, were cultured under hypoxic conditions (1% O2). Melatonin was applied at 100 μM concentration. Protein and mRNA contents were determined by Western blot and RT-qPCR, respectively. HIF-1α acetylation level was established by means of immunoprecipitation followed by Western blot. Melatonin receptors MT1 and MT2 localization in HK-2 cells was visualized using immunofluorescence confocal analysis. It was found that melatonin in HK-2 cells (1) lowered HIF-1α protein, but not mRNA, content; (2) attenuated expression of HIF-1 target genes; (3) increased HIF-1α acetylation level; and (4) diminished sirtuin 1 expression (both protein and mRNA). Sirtuin 1 involvement in the regulation of HIF-1α level was confirmed applying cells with silenced Sirt1 gene. Moreover, the presence of membrane MT1 and MT2 receptors was identified in HK-2 cells and their ligand, ramelteon, turned out to mimic melatonin action on both HIF-1α and sirtuin 1 levels. Thus, it is concluded that the mechanism of melatonin-evoked decline in HIF-1α content in renal proximal tubular cells involves increased acetylation of this subunit which results from the attenuated expression of sirtuin 1, an enzyme reported to deacetylate HIF-1α. This observation provides a new insight to the understanding of melatonin action in kidneys.
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Affiliation(s)
- Aleksandra Owczarek
- Department of Metabolic Regulation, Faculty of Biology, Institute of Biochemistry, University of Warsaw, Warsaw, Poland
| | - Katarzyna B Gieczewska
- Department of Plant Anatomy and Cytology, Faculty of Biology, Institute of Experimental Plant Biology and Biotechnology, University of Warsaw, Warsaw, Poland
| | - Marta Polanska
- Department of Animal Physiology, Faculty of Biology, Institute of Functional Biology and Ecology, University of Warsaw, Warsaw, Poland
| | - Bohdan Paterczyk
- Laboratory of Electron and Confocal Microscopy, Faculty of Biology, University of Warsaw, Warsaw, Poland
| | - Andrzej Gruza
- Department of Metabolic Regulation, Faculty of Biology, Institute of Biochemistry, University of Warsaw, Warsaw, Poland
| | - Katarzyna Winiarska
- Department of Metabolic Regulation, Faculty of Biology, Institute of Biochemistry, University of Warsaw, Warsaw, Poland
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Liang M, Meng Y, Zhou S, Tao Z, Tao L. Research hotspots and trends analysis of ankylosing spondylitis: a bibliometric and scientometric analysis from 2009 to 2018. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:1445. [PMID: 33313190 PMCID: PMC7723565 DOI: 10.21037/atm-20-1259] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Background This study utilized bibliometric analysis to qualitatively and quantitatively analyze hotspots and predict trends in the field of ankylosing spondylitis (AS) research. Methods Articles about AS were obtained from the Web of Science Core Collection and PubMed database, and bibliometric analysis was carried out through CiteSpace and the Online Analysis Platform of Literature Metrology and Bibliographic Item Co-Occurrence Matrix Builder (BICOMB). Then, co-word biclustering analysis was conducted to obtain research hotspots and predict trends using gCLUTO software. Results A total of 6,818 articles on AS from 2009 to 2018 were analyzed, showing an increasing publication trend (558 articles in 2009 to 851 articles in 2018). The Journal of Rheumatology was the leading journal in AS research, with an impact factor (IF) of 3.634 and H-index value of 49. In terms of region, the United States led the world in this field, and The University of Toronto was the leading institution for AS research. Van Der Heijde, D was the most prolific author in the field. Eight research hotspots in the field of AS were also identified. Conclusions Our analysis identified eight research hotspots, and predicted that surgical treatment and etiology will be the main AS research trends in the future. This study provides new directions and ideas for future research in AS.
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Affiliation(s)
- Miaomiao Liang
- Department of Orthopedics, First Hospital of China Medical University, Shenyang, China
| | - Yan Meng
- Department of Orthopedics, First Hospital of China Medical University, Shenyang, China
| | - Siming Zhou
- Department of Orthopedics, First Hospital of China Medical University, Shenyang, China
| | - Zhengbo Tao
- Department of Orthopedics, First Hospital of China Medical University, Shenyang, China
| | - Lin Tao
- Department of Orthopedics, First Hospital of China Medical University, Shenyang, China
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Afsar B, Elsurer Afsar R, Sag AA, Kanbay A, Korkmaz H, Cipolla-Neto J, Covic A, Ortiz A, Kanbay M. Sweet dreams: therapeutic insights, targeting imaging and physiologic evidence linking sleep, melatonin and diabetic nephropathy. Clin Kidney J 2020; 13:522-530. [PMID: 32905249 PMCID: PMC7467577 DOI: 10.1093/ckj/sfz198] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Accepted: 12/16/2019] [Indexed: 12/25/2022] Open
Abstract
Melatonin is the main biochronologic molecular mediator of circadian rhythm and sleep. It is also a powerful antioxidant and has roles in other physiologic pathways. Melatonin deficiency is associated with metabolic derangements including glucose and cholesterol dysregulation, hypertension, disordered sleep and even cancer, likely due to altered immunity. Diabetic nephropathy (DN) is a key microvascular complication of both type 1 and 2 diabetes. DN is the end result of a complex combination of metabolic, haemodynamic, oxidative and inflammatory factors. Interestingly, these same factors have been linked to melatonin deficiency. This report will collate in a clinician-oriented fashion the mechanistic link between melatonin deficiency and factors contributing to DN.
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Affiliation(s)
- Baris Afsar
- Division of Nephrology, Department of Medicine, Suleyman Demirel University School of Medicine, Isparta, Turkey
| | - Rengin Elsurer Afsar
- Division of Nephrology, Department of Medicine, Suleyman Demirel University School of Medicine, Isparta, Turkey
| | - Alan A Sag
- Division of Vascular and Interventional Radiology, Department of Radiology, Duke University Medical Center, Durham, NC, USA
| | - Asiye Kanbay
- Department of Pulmonary Medicine, Istanbul Medeniyet University School of Medicine, Istanbul, Turkey
| | - Hakan Korkmaz
- Division of Endocrinology, Department of Medicine, Suleyman Demirel University School of Medicine, Isparta, Turkey
| | - José Cipolla-Neto
- Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Adrian Covic
- Dialysis Unit, School of Medicine, IIS-Fundacion Jimenez Diaz, Universidad Autónoma de Madrid, Madrid, Spain
| | - Alberto Ortiz
- Nephrology Clinic, Dialysis and Renal Transplant Center, ‘C.I. PARHON’ University Hospital and ‘Grigore T. Popa’ University of Medicine, Iasi, Romania
| | - Mehmet Kanbay
- Division of Nephrology, Department of Medicine, Koç University School of Medicine, Istanbul, Turkey
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Satyanarayanan SK, Chien YC, Chang JPC, Huang SY, Guu TW, Su H, Su KP. Melatonergic agonist regulates circadian clock genes and peripheral inflammatory and neuroplasticity markers in patients with depression and anxiety. Brain Behav Immun 2020; 85:142-151. [PMID: 30851380 DOI: 10.1016/j.bbi.2019.03.003] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 02/25/2019] [Accepted: 03/05/2019] [Indexed: 01/20/2023] Open
Abstract
OBJECTIVE Circadian dysfunction is a core manifestation and a risk factor for psychiatric disorders. Ramelteon (RMT), a melatonin receptor agonist, has been shown to induce sleep phase shifts and has been used to normalize sleep onset time. RMT has been used in sleep disorders, depression and anxiety. In this study, we aimed to investigate the effects of RMT in regulating gene expression profiles of the circadian clock and peripheral markers of inflammation and neuroplasticity. METHODS Sixteen patients with a diagnosis of primary insomnia comorbid with depression and anxiety and ten healthy controls were recruited in an 8-week open-label trial. The patients with primary insomnia received RMT 8 mg/day. The morning expression profiles of 15 core clock genes from peripheral blood mononuclear cells (PBMCs), urine and plasma levels of melatonin and its metabolite levels, and plasma inflammatory markers and neurotrophin levels were evaluated at baseline, 4th and 8th week of RMT treatment. RESULTS RMT treatment was associated with significant clinical improvement in depression scores at 8th week (Hamilton depression rating scale scores (Mean ± SEM) from 21.5 ± 2.44 to 14.31 ± 2.25, p ≤ 0.05). The overall poor sleep quality (Pittsburgh sleep quality index) of the patient group significantly improved (p ≤ 0.05) following RMT treatment. The mRNA level analysis showed a significant association between RMT treatment and alterations of the nine core circadian genes (CLOCK, PER1, PER2, CRY1, CRY2, NR1D1, NR1D2, DEC1 and TIMELESS) in the patient group when compared with the control group (p ≤ 0.05). Compared with the controls, the patient group had a decrease in neurotrophins (brain-derived neurotrophic factor, glial cell line-derived neurotrophic factor and beta-nerve growth factor; p ≤ 0.05) but an increase in pro-inflammatory cytokine levels (interleukin-6, interleukin-1b, tumour necrosis factor-alpha and interferon gamma; p ≤ 0.05); RMT treatment normalized the levels of neurotrophins and cytokine levels. CONCLUSION RMT treatment is able to restore phase-shifted melatonin markers, normalized the altered expression of the circadian genes, the levels of inflammatory cytokines and neurotrophins in patients with insomnia comorbid anxiety and depression.
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Affiliation(s)
- Senthil Kumaran Satyanarayanan
- Department of Psychiatry & Mind-Body Interface Laboratory (MBI-Lab), China Medical University Hospital, Taichung, Taiwan; State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Yu-Chuan Chien
- Department of Psychiatry & Mind-Body Interface Laboratory (MBI-Lab), China Medical University Hospital, Taichung, Taiwan; Division of Psychiatry, Departments of Internal Medicine, China Medical University Beigang Hospital, Yunlin, Taiwan
| | - Jane Pei-Chen Chang
- Department of Psychiatry & Mind-Body Interface Laboratory (MBI-Lab), China Medical University Hospital, Taichung, Taiwan; Department of Psychological Medicine, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK; College of Medicine, China Medical University, Taichung, Taiwan
| | - Shih-Yi Huang
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei, Taiwan; Graduate Institute of Metabolism and Obesity Sciences, Taipei Medical University, Taipei, Taiwan
| | - Ta-Wei Guu
- Department of Psychiatry & Mind-Body Interface Laboratory (MBI-Lab), China Medical University Hospital, Taichung, Taiwan; Division of Psychiatry, Departments of Internal Medicine, China Medical University Beigang Hospital, Yunlin, Taiwan
| | - Huanxing Su
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - Kuan-Pin Su
- Department of Psychiatry & Mind-Body Interface Laboratory (MBI-Lab), China Medical University Hospital, Taichung, Taiwan; Department of Psychological Medicine, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK; College of Medicine, China Medical University, Taichung, Taiwan.
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11
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Borba TKF, Toscano AE, Costa de Santana BJR, Silva SCDA, Lagranha CJ, Guzmán Quevedo O, Manhães-de-Castro R. Central administration of REV-ERBα agonist promotes opposite responses on energy balance in fasted and fed states. J Neuroendocrinol 2020; 32:e12833. [PMID: 31957097 DOI: 10.1111/jne.12833] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 01/15/2020] [Accepted: 01/15/2020] [Indexed: 11/29/2022]
Abstract
The REV-ERBα receptor has a recognised role in the regulation of the circadian rhythm system. However, recent evidence suggests that it also contributes to energy balance regulation. Both expression and function of REV-ERBα can be influenced by the energy status of the body. Considering the possibility of the involvement of REV-ERBα in the regulation of energy balance, which is critically regulated by the hypothalamus, and based on the impact of intermittent fasting, the present study evaluated the effects of central administration of REV-ERBα agonist on energy balance in rats exposed to 24 hours of fasting or ad lib. feeding conditions. Initially, 24-hour fasted rats received an acute i.c.v. administration of agonist at doses of 1, 5, 10 or 15 μg per rat and feed efficiency was evaluated. Because 10 μg was a sufficient dose to affect feed efficiency, subsequent experiments used this dose to assess effects of agonist on the following parameters: energy expenditure induced by physical activity and locomotor activity, time spent in physical activity over 24 hours, and glucose and insulin tolerance. In fasted rats, the agonist promoted increased food intake and feed efficiency, with a greater body weight gain associated with less time spent in locomotor activity, suggesting a reduction in energy expenditure induced by physical activity. Furthermore, a reduction in glucose tolerance was noted. By contrast, free-fed rats exhibited reduced food intake and feed efficiency with decreased body weight gain along with an increase in locomotor activity and physical activity-dependent energy expenditure. Thus, i.c.v. administration of REV-ERBα agonist regulates energy balance depending on the energy status of the organism; that is, it promotes a positive energy balance in the fasted state and a negative energy balance in the fed state. These results may be useful in understanding the underlying mechanisms of energy balance disorders and intermittent fasting for body weight control.
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Affiliation(s)
- Tássia Karin Ferreira Borba
- Post-Graduation in Neuropsychiatry and Behavioral Sciences, Health Sciences Center, Federal University of Pernambuco, Recife, Brazil
| | - Ana Elisa Toscano
- Department of Nursing, CAV, Federal University of Pernambuco, Vitória de Santo Antão, Brazil
- Unit of Studies in Nutrition and Phenotypic Plasticity, Department of Nutrition, Federal University of Pernambuco, Recife, Brazil
| | - Bárbara Juacy Rodrigues Costa de Santana
- Post-Graduation in Neuropsychiatry and Behavioral Sciences, Health Sciences Center, Federal University of Pernambuco, Recife, Brazil
- Unit of Studies in Nutrition and Phenotypic Plasticity, Department of Nutrition, Federal University of Pernambuco, Recife, Brazil
| | - Severina Cassia de Andrade Silva
- Post-Graduation in Neuropsychiatry and Behavioral Sciences, Health Sciences Center, Federal University of Pernambuco, Recife, Brazil
| | - Claudia Jacques Lagranha
- Post-Graduation in Neuropsychiatry and Behavioral Sciences, Health Sciences Center, Federal University of Pernambuco, Recife, Brazil
| | | | - Raul Manhães-de-Castro
- Unit of Studies in Nutrition and Phenotypic Plasticity, Department of Nutrition, Federal University of Pernambuco, Recife, Brazil
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12
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Zhang S, Dai M, Wang X, Jiang SH, Hu LP, Zhang XL, Zhang ZG. Signalling entrains the peripheral circadian clock. Cell Signal 2020; 69:109433. [PMID: 31982551 DOI: 10.1016/j.cellsig.2019.109433] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 09/29/2019] [Accepted: 09/29/2019] [Indexed: 12/18/2022]
Abstract
In mammals, 24-h rhythms of behaviour and physiology are regulated by the circadian clock. The circadian clock is controlled by a central clock in the brain's suprachiasmatic nucleus (SCN) that synchronizes peripheral clocks in peripheral tissues. Clock genes in the SCN are primarily entrained by light. Increasing evidence has shown that peripheral clocks are also regulated by light and hormones independent of the SCN. How the peripheral clocks deal with internal signals is dependent on the relevance of a specific cue to a specific tissue. In different tissues, most genes that are under circadian control are not overlapping, revealing the tissue-specific control of peripheral clocks. We will discuss how different signals control the peripheral clocks in different peripheral tissues, such as the liver, gastrointestinal tract, and pancreas, and discuss the organ-to-organ communication between the peripheral clocks at the molecular level.
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Affiliation(s)
- Shan Zhang
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Miao Dai
- Department of Gynecologic Oncology, Hunan Cancer Hospital, the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan Province, China
| | - Xu Wang
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Shu-Heng Jiang
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Li-Peng Hu
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xue-Li Zhang
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
| | - Zhi-Gang Zhang
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.
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13
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Estaras M, Ameur FZ, Roncero V, Fernandez-Bermejo M, Blanco G, Lopez D, Mateos JM, Salido GM, Gonzalez A. The melatonin receptor antagonist luzindole induces Ca 2+ mobilization, reactive oxygen species generation and impairs trypsin secretion in mouse pancreatic acinar cells. Biochim Biophys Acta Gen Subj 2019; 1863:129407. [PMID: 31381958 DOI: 10.1016/j.bbagen.2019.07.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 07/23/2019] [Accepted: 07/31/2019] [Indexed: 12/12/2022]
Abstract
BACKGROUND In this work we studied the effects of the melatonin receptor-antagonist luzindole (1 μM-50 μM) on isolated mouse pancreatic acinar cells. METHODS Changes in intracellular free-Ca2+ concentration, reactive oxygen species production and trypsin secretion were analyzed. RESULTS Luzindole induced increases in [Ca2+]i that diminished CCK-8 induced Ca2+ mobilization, compared with that observed when CCK-8 was applied alone. Treatment of cells with thapsigargin (1 μM), in the absence of Ca2+ in the extracellular medium, evoked a transient increase in [Ca2+]i. The additional incubation of cells with luzindole (10 μM) failed to induce further mobilization of Ca2+. In the presence of luzindole a concentration-dependent increase in ROS generation was observed that decreased in the absence of Ca2+ or by pretreatment of cells with melatonin (100 μM). Incubation of pancreatic acinar cells with luzindole (10 μM) impaired CCK-8-induced trypsin secretion. Melatonin was unable to revert the effect of luzindole on CCK-8-induced trypsin secretion. CONCLUSION The melatonin receptor-inhibitor luzindole induces Ca2+-mediated pro-oxidative conditions and impairment of enzyme secretion, which creates a situation in pancreatic acinar cells that might compromise their function. GENERAL SIGNIFICANCE The effects of luzindole that we have observed, might be unspecific and could mislead the observations when it is used to study the actions of melatonin on the gland. Another possibility is that melatonin receptors exhibit a basal or agonist-independent activity in pancreatic acinar cells, which might be modulated by melatonin or luzindole.
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Affiliation(s)
- Matias Estaras
- Institute of Molecular Pathology Biomarkers, University of Extremadura, Caceres, Spain
| | - Fatma Z Ameur
- Laboratoire de Physiologie de la Nutrition et de Sécurité Alimentaire, Université d'Oran1, Ahmed BenBella, Algeria
| | - Vicente Roncero
- Unit of Histology and Pathological Anatomy, Veterinary Faculty, University of Extremadura, Caceres, Spain
| | | | - Gerardo Blanco
- Hepatobiliary-Pancreatic Surgery and Liver Transplant Unit, Infanta Cristina Hospital, Badajoz, Spain
| | - Diego Lopez
- Hepatobiliary-Pancreatic Surgery and Liver Transplant Unit, Infanta Cristina Hospital, Badajoz, Spain
| | - Jose M Mateos
- Department of Gastroenterology, San Pedro de Alcantara Hospital, Caceres, Spain
| | - Gines M Salido
- Institute of Molecular Pathology Biomarkers, University of Extremadura, Caceres, Spain
| | - Antonio Gonzalez
- Institute of Molecular Pathology Biomarkers, University of Extremadura, Caceres, Spain.
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14
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Cipolla-Neto J, Amaral FGD. Melatonin as a Hormone: New Physiological and Clinical Insights. Endocr Rev 2018; 39:990-1028. [PMID: 30215696 DOI: 10.1210/er.2018-00084] [Citation(s) in RCA: 310] [Impact Index Per Article: 51.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Accepted: 06/21/2018] [Indexed: 02/07/2023]
Abstract
Melatonin is a ubiquitous molecule present in almost every live being from bacteria to humans. In vertebrates, besides being produced in peripheral tissues and acting as an autocrine and paracrine signal, melatonin is centrally synthetized by a neuroendocrine organ, the pineal gland. Independently of the considered species, pineal hormone melatonin is always produced during the night and its production and secretory episode duration are directly dependent on the length of the night. As its production is tightly linked to the light/dark cycle, melatonin main hormonal systemic integrative action is to coordinate behavioral and physiological adaptations to the environmental geophysical day and season. The circadian signal is dependent on its daily production regularity, on the contrast between day and night concentrations, and on specially developed ways of action. During its daily secretory episode, melatonin coordinates the night adaptive physiology through immediate effects and primes the day adaptive responses through prospective effects that will only appear at daytime, when melatonin is absent. Similarly, the annual history of the daily melatonin secretory episode duration primes the central nervous/endocrine system to the seasons to come. Remarkably, maternal melatonin programs the fetuses' behavior and physiology to cope with the environmental light/dark cycle and season after birth. These unique ways of action turn melatonin into a biological time-domain-acting molecule. The present review focuses on the above considerations, proposes a putative classification of clinical melatonin dysfunctions, and discusses general guidelines to the therapeutic use of melatonin.
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Affiliation(s)
- José Cipolla-Neto
- Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
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15
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Ruiz L, Gurlo T, Ravier MA, Wojtusciszyn A, Mathieu J, Brown MR, Broca C, Bertrand G, Butler PC, Matveyenko AV, Dalle S, Costes S. Proteasomal degradation of the histone acetyl transferase p300 contributes to beta-cell injury in a diabetes environment. Cell Death Dis 2018; 9:600. [PMID: 29789539 PMCID: PMC5964068 DOI: 10.1038/s41419-018-0603-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 03/09/2018] [Accepted: 04/17/2018] [Indexed: 12/25/2022]
Abstract
In type 2 diabetes, amyloid oligomers, chronic hyperglycemia, lipotoxicity, and pro-inflammatory cytokines are detrimental to beta-cells, causing apoptosis and impaired insulin secretion. The histone acetyl transferase p300, involved in remodeling of chromatin structure by epigenetic mechanisms, is a key ubiquitous activator of the transcriptional machinery. In this study, we report that loss of p300 acetyl transferase activity and expression leads to beta-cell apoptosis, and most importantly, that stress situations known to be associated with diabetes alter p300 levels and functional integrity. We found that proteasomal degradation is the mechanism subserving p300 loss in beta-cells exposed to hyperglycemia or pro-inflammatory cytokines. We also report that melatonin, a hormone produced in the pineal gland and known to play key roles in beta-cell health, preserves p300 levels altered by these toxic conditions. Collectively, these data imply an important role for p300 in the pathophysiology of diabetes.
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Affiliation(s)
- Lucie Ruiz
- IGF, CNRS, INSERM, University of Montpellier, Montpellier, France
| | - Tatyana Gurlo
- Larry L. Hillblom Islet Research Center, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Magalie A Ravier
- IGF, CNRS, INSERM, University of Montpellier, Montpellier, France
| | - Anne Wojtusciszyn
- IGF, CNRS, INSERM, University of Montpellier, Montpellier, France.,Laboratory of Cell Therapy for Diabetes (LTCD), Institute for Regenerative Medicine and Biotherapy (IRMB), University Hospital of Montpellier, Montpellier, France.,Department of Endocrinology, Diabetes, and Nutrition, University Hospital of Montpellier, Montpellier, France
| | - Julia Mathieu
- IGF, CNRS, INSERM, University of Montpellier, Montpellier, France
| | - Matthew R Brown
- Department of Physiology and Biomedical Engineering, Mayo Clinic School of Medicine, Mayo Clinic, Rochester, MN, USA
| | - Christophe Broca
- Laboratory of Cell Therapy for Diabetes (LTCD), Institute for Regenerative Medicine and Biotherapy (IRMB), University Hospital of Montpellier, Montpellier, France
| | | | - Peter C Butler
- Larry L. Hillblom Islet Research Center, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Aleksey V Matveyenko
- Department of Physiology and Biomedical Engineering, Mayo Clinic School of Medicine, Mayo Clinic, Rochester, MN, USA
| | - Stéphane Dalle
- IGF, CNRS, INSERM, University of Montpellier, Montpellier, France
| | - Safia Costes
- IGF, CNRS, INSERM, University of Montpellier, Montpellier, France.
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16
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Perelis M, Ramsey KM, Marcheva B, Bass J. Circadian Transcription from Beta Cell Function to Diabetes Pathophysiology. J Biol Rhythms 2017; 31:323-36. [PMID: 27440914 DOI: 10.1177/0748730416656949] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The mammalian circadian clock plays a central role in the temporal coordination of physiology across the 24-h light-dark cycle. A major function of the clock is to maintain energy constancy in anticipation of alternating periods of fasting and feeding that correspond with sleep and wakefulness. While it has long been recognized that humans exhibit robust variation in glucose tolerance and insulin sensitivity across the sleep-wake cycle, experimental genetic analysis has now revealed that the clock transcription cycle plays an essential role in insulin secretion and metabolic function within pancreatic beta cells. This review addresses how studies of the beta cell clock may elucidate the etiology of subtypes of diabetes associated with circadian and sleep cycle disruption, in addition to more general forms of the disease.
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Affiliation(s)
- Mark Perelis
- Department of Medicine, Division of Endocrinology, Metabolism and Molecular Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Kathryn Moynihan Ramsey
- Department of Medicine, Division of Endocrinology, Metabolism and Molecular Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Biliana Marcheva
- Department of Medicine, Division of Endocrinology, Metabolism and Molecular Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Joseph Bass
- Department of Medicine, Division of Endocrinology, Metabolism and Molecular Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois
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17
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Forrestel AC, Miedlich SU, Yurcheshen M, Wittlin SD, Sellix MT. Chronomedicine and type 2 diabetes: shining some light on melatonin. Diabetologia 2017; 60:808-822. [PMID: 27981356 DOI: 10.1007/s00125-016-4175-1] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 11/18/2016] [Indexed: 12/19/2022]
Abstract
In mammals, the circadian timing system drives rhythms of physiology and behaviour, including the daily rhythms of feeding and activity. The timing system coordinates temporal variation in the biochemical landscape with changes in nutrient intake in order to optimise energy balance and maintain metabolic homeostasis. Circadian disruption (e.g. as a result of shift work or jet lag) can disturb this continuity and increase the risk of cardiometabolic disease. Obesity and metabolic disease can also disturb the timing and amplitude of the clock in multiple organ systems, further exacerbating disease progression. As our understanding of the synergy between the timing system and metabolism has grown, an interest has emerged in the development of novel clock-targeting pharmaceuticals or nutraceuticals for the treatment of metabolic dysfunction. Recently, the pineal hormone melatonin has received some attention as a potential chronotherapeutic drug for metabolic disease. Melatonin is well known for its sleep-promoting effects and putative activity as a chronobiotic drug, stimulating coordination of biochemical oscillations through targeting the internal timing system. Melatonin affects the insulin secretory activity of the pancreatic beta cell, hepatic glucose metabolism and insulin sensitivity. Individuals with type 2 diabetes mellitus have lower night-time serum melatonin levels and increased risk of comorbid sleep disturbances compared with healthy individuals. Further, reduced melatonin levels, and mutations and/or genetic polymorphisms of the melatonin receptors are associated with an increased risk of developing type 2 diabetes. Herein we review our understanding of molecular clock control of glucose homeostasis, detail the influence of circadian disruption on glucose metabolism in critical peripheral tissues, explore the contribution of melatonin signalling to the aetiology of type 2 diabetes, and discuss the pros and cons of melatonin chronopharmacotherapy in disease management.
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Affiliation(s)
- Andrew C Forrestel
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Rochester School of Medicine and Dentistry, 601 Elmwood Avenue, Box 693, Rochester, NY, 14642, USA
| | - Susanne U Miedlich
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Rochester School of Medicine and Dentistry, 601 Elmwood Avenue, Box 693, Rochester, NY, 14642, USA
| | - Michael Yurcheshen
- UR Medicine Sleep Center, Department of Neurology, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA
| | - Steven D Wittlin
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Rochester School of Medicine and Dentistry, 601 Elmwood Avenue, Box 693, Rochester, NY, 14642, USA
| | - Michael T Sellix
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Rochester School of Medicine and Dentistry, 601 Elmwood Avenue, Box 693, Rochester, NY, 14642, USA.
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18
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Liu Y, Ni C, Li Z, Yang N, Zhou Y, Rong X, Qian M, Chui D, Guo X. Prophylactic Melatonin Attenuates Isoflurane‐Induced Cognitive Impairment in Aged Rats through Hippocampal Melatonin Receptor 2 – cAMP Response Element Binding Signalling. Basic Clin Pharmacol Toxicol 2017; 120:219-226. [PMID: 27515785 DOI: 10.1111/bcpt.12652] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Accepted: 08/03/2016] [Indexed: 11/29/2022]
Affiliation(s)
- Yajie Liu
- Department of Anesthesiology Peking University Third Hospital Beijing China
| | - Cheng Ni
- Department of Anesthesiology Peking University Third Hospital Beijing China
| | - Zhengqian Li
- Department of Anesthesiology Peking University Third Hospital Beijing China
| | - Ning Yang
- Department of Anesthesiology Peking University Third Hospital Beijing China
| | - Yang Zhou
- Department of Anesthesiology Peking University Third Hospital Beijing China
| | - Xiaoying Rong
- Department of Anesthesiology Peking University Third Hospital Beijing China
| | - Min Qian
- Department of Anesthesiology Peking University Third Hospital Beijing China
| | - Dehua Chui
- Neuroscience Research Institute & Department of Neurobiology Peking University Beijing China
| | - Xiangyang Guo
- Department of Anesthesiology Peking University Third Hospital Beijing China
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19
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Mendez N, Halabi D, Spichiger C, Salazar ER, Vergara K, Alonso-Vasquez P, Carmona P, Sarmiento JM, Richter HG, Seron-Ferre M, Torres-Farfan C. Gestational Chronodisruption Impairs Circadian Physiology in Rat Male Offspring, Increasing the Risk of Chronic Disease. Endocrinology 2016; 157:4654-4668. [PMID: 27802074 DOI: 10.1210/en.2016-1282] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Chronic exposure to light at night, as in shift work, alters biological clocks (chronodisruption), negatively impacting pregnancy outcome in humans. Actually the interaction of maternal and fetal circadian systems could be a key factor determining a fitting health in adults. We propose that chronic photoperiod shift (CPS) during pregnancy alter maternal circadian rhythms and impair circadian physiology in the adult offspring, increasing health risks. Pregnant rats were exposed to normal photoperiod (12 h light, 12 h dark) or to CPS until 85% of gestation. The effects of gestational CPS were evaluated on the mother and adult offspring. In the mother we measured rhythms of heart rate, body temperature, and activity through gestation and daily rhythms of plasma variables (melatonin, corticosterone, aldosterone, and markers of renal function) at 18 days of gestation. In adult offspring, we measured rhythms of the clock gene expression in the suprachiasmatic nucleus (SCN), locomotor activity, body temperature, heart rate, blood pressure, plasma variables, glucose tolerance, and corticosterone response to ACTH. CPS altered all maternal circadian rhythms, lengthened gestation, and increased newborn weight. The adult CPS offspring presented normal rhythms of clock gene expression in the SCN, locomotor activity, and body temperature. However, the daily rhythm of plasma melatonin was absent, and corticosterone, aldosterone, renal markers, blood pressure, and heart rate rhythms were altered. Moreover, CPS offspring presented decreased glucose tolerance and an abnormal corticosterone response to ACTH. Altogether these data show that gestational CPS induced long-term effects on the offspring circadian system, wherein a normal SCN coexists with altered endocrine, cardiovascular, and metabolic function.
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Affiliation(s)
- Natalia Mendez
- Laboratory of Developmental Chronobiology (N.M., D.H., C.S., E.R.S., K.V., P.A.-V., H.G.R., C.T.-F.), Institute of Anatomy, Histology, and Pathology and Institute of Physiology (P.C., J.M.S.), Faculty of Medicine, Universidad Austral de Chile, Valdivia, Chile; and Laboratorio de Cronobiología (M.S.-F.), Programa de Fisiopatología, ICBM, Facultad de Medicina, Universidad de Chile, 6640750 Santiago, Chile
| | - Diego Halabi
- Laboratory of Developmental Chronobiology (N.M., D.H., C.S., E.R.S., K.V., P.A.-V., H.G.R., C.T.-F.), Institute of Anatomy, Histology, and Pathology and Institute of Physiology (P.C., J.M.S.), Faculty of Medicine, Universidad Austral de Chile, Valdivia, Chile; and Laboratorio de Cronobiología (M.S.-F.), Programa de Fisiopatología, ICBM, Facultad de Medicina, Universidad de Chile, 6640750 Santiago, Chile
| | - Carlos Spichiger
- Laboratory of Developmental Chronobiology (N.M., D.H., C.S., E.R.S., K.V., P.A.-V., H.G.R., C.T.-F.), Institute of Anatomy, Histology, and Pathology and Institute of Physiology (P.C., J.M.S.), Faculty of Medicine, Universidad Austral de Chile, Valdivia, Chile; and Laboratorio de Cronobiología (M.S.-F.), Programa de Fisiopatología, ICBM, Facultad de Medicina, Universidad de Chile, 6640750 Santiago, Chile
| | - Esteban R Salazar
- Laboratory of Developmental Chronobiology (N.M., D.H., C.S., E.R.S., K.V., P.A.-V., H.G.R., C.T.-F.), Institute of Anatomy, Histology, and Pathology and Institute of Physiology (P.C., J.M.S.), Faculty of Medicine, Universidad Austral de Chile, Valdivia, Chile; and Laboratorio de Cronobiología (M.S.-F.), Programa de Fisiopatología, ICBM, Facultad de Medicina, Universidad de Chile, 6640750 Santiago, Chile
| | - Karina Vergara
- Laboratory of Developmental Chronobiology (N.M., D.H., C.S., E.R.S., K.V., P.A.-V., H.G.R., C.T.-F.), Institute of Anatomy, Histology, and Pathology and Institute of Physiology (P.C., J.M.S.), Faculty of Medicine, Universidad Austral de Chile, Valdivia, Chile; and Laboratorio de Cronobiología (M.S.-F.), Programa de Fisiopatología, ICBM, Facultad de Medicina, Universidad de Chile, 6640750 Santiago, Chile
| | - Pamela Alonso-Vasquez
- Laboratory of Developmental Chronobiology (N.M., D.H., C.S., E.R.S., K.V., P.A.-V., H.G.R., C.T.-F.), Institute of Anatomy, Histology, and Pathology and Institute of Physiology (P.C., J.M.S.), Faculty of Medicine, Universidad Austral de Chile, Valdivia, Chile; and Laboratorio de Cronobiología (M.S.-F.), Programa de Fisiopatología, ICBM, Facultad de Medicina, Universidad de Chile, 6640750 Santiago, Chile
| | - Pamela Carmona
- Laboratory of Developmental Chronobiology (N.M., D.H., C.S., E.R.S., K.V., P.A.-V., H.G.R., C.T.-F.), Institute of Anatomy, Histology, and Pathology and Institute of Physiology (P.C., J.M.S.), Faculty of Medicine, Universidad Austral de Chile, Valdivia, Chile; and Laboratorio de Cronobiología (M.S.-F.), Programa de Fisiopatología, ICBM, Facultad de Medicina, Universidad de Chile, 6640750 Santiago, Chile
| | - Jose M Sarmiento
- Laboratory of Developmental Chronobiology (N.M., D.H., C.S., E.R.S., K.V., P.A.-V., H.G.R., C.T.-F.), Institute of Anatomy, Histology, and Pathology and Institute of Physiology (P.C., J.M.S.), Faculty of Medicine, Universidad Austral de Chile, Valdivia, Chile; and Laboratorio de Cronobiología (M.S.-F.), Programa de Fisiopatología, ICBM, Facultad de Medicina, Universidad de Chile, 6640750 Santiago, Chile
| | - Hans G Richter
- Laboratory of Developmental Chronobiology (N.M., D.H., C.S., E.R.S., K.V., P.A.-V., H.G.R., C.T.-F.), Institute of Anatomy, Histology, and Pathology and Institute of Physiology (P.C., J.M.S.), Faculty of Medicine, Universidad Austral de Chile, Valdivia, Chile; and Laboratorio de Cronobiología (M.S.-F.), Programa de Fisiopatología, ICBM, Facultad de Medicina, Universidad de Chile, 6640750 Santiago, Chile
| | - Maria Seron-Ferre
- Laboratory of Developmental Chronobiology (N.M., D.H., C.S., E.R.S., K.V., P.A.-V., H.G.R., C.T.-F.), Institute of Anatomy, Histology, and Pathology and Institute of Physiology (P.C., J.M.S.), Faculty of Medicine, Universidad Austral de Chile, Valdivia, Chile; and Laboratorio de Cronobiología (M.S.-F.), Programa de Fisiopatología, ICBM, Facultad de Medicina, Universidad de Chile, 6640750 Santiago, Chile
| | - Claudia Torres-Farfan
- Laboratory of Developmental Chronobiology (N.M., D.H., C.S., E.R.S., K.V., P.A.-V., H.G.R., C.T.-F.), Institute of Anatomy, Histology, and Pathology and Institute of Physiology (P.C., J.M.S.), Faculty of Medicine, Universidad Austral de Chile, Valdivia, Chile; and Laboratorio de Cronobiología (M.S.-F.), Programa de Fisiopatología, ICBM, Facultad de Medicina, Universidad de Chile, 6640750 Santiago, Chile
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20
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Thomas AP, Hoang J, Vongbunyong K, Nguyen A, Rakshit K, Matveyenko AV. Administration of Melatonin and Metformin Prevents Deleterious Effects of Circadian Disruption and Obesity in Male Rats. Endocrinology 2016; 157:4720-4731. [PMID: 27653034 PMCID: PMC5133345 DOI: 10.1210/en.2016-1309] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Circadian disruption and obesity synergize to predispose to development of type 2 diabetes mellitus (T2DM), signifying that therapeutic targeting of both circadian and metabolic dysfunctions should be considered as a potential treatment approach. To address this hypothesis, we studied rats concomitantly exposed to circadian disruption and diet-induced obesity (CDO), a rat model recently shown to recapitulate phenotypical aspects of obese T2DM (eg, circadian disruption, obesity, insulin resistance, and islet failure). CDO rats were subsequently treated daily (for 12 wk) by timed oral gavage with vehicle, melatonin (a known chronobiotic), metformin, or combination treatment of both therapeutics. Melatonin treatment alone improved circadian activity rhythms, attenuated induction of β-cell failure, and enhanced glucose tolerance. Metformin alone did not modify circadian activity but enhanced insulin sensitivity and glucose tolerance. Importantly, the combination of melatonin and metformin had synergistic actions to modify progression of metabolic dysfunction in CDO rats through improved adiposity, circadian activity, insulin sensitivity, and islet cell failure. This study suggests that management of both circadian and metabolic dysfunctions should be considered as a potential preventative and therapeutic option for treatment of obesity and T2DM.
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Affiliation(s)
- Anthony P Thomas
- Department of Physiology and Biomedical Engineering (K.R., A.V.M.), Mayo Clinic School of Medicine, Mayo Clinic, Rochester, Minnesota 55905; and Department of Medicine (A.P.T., J.H., K.V., A.N., A.V.M.), University of California Los Angeles, Los Angeles, California 90095
| | - Jonathan Hoang
- Department of Physiology and Biomedical Engineering (K.R., A.V.M.), Mayo Clinic School of Medicine, Mayo Clinic, Rochester, Minnesota 55905; and Department of Medicine (A.P.T., J.H., K.V., A.N., A.V.M.), University of California Los Angeles, Los Angeles, California 90095
| | - Kenny Vongbunyong
- Department of Physiology and Biomedical Engineering (K.R., A.V.M.), Mayo Clinic School of Medicine, Mayo Clinic, Rochester, Minnesota 55905; and Department of Medicine (A.P.T., J.H., K.V., A.N., A.V.M.), University of California Los Angeles, Los Angeles, California 90095
| | - Andrew Nguyen
- Department of Physiology and Biomedical Engineering (K.R., A.V.M.), Mayo Clinic School of Medicine, Mayo Clinic, Rochester, Minnesota 55905; and Department of Medicine (A.P.T., J.H., K.V., A.N., A.V.M.), University of California Los Angeles, Los Angeles, California 90095
| | - Kuntol Rakshit
- Department of Physiology and Biomedical Engineering (K.R., A.V.M.), Mayo Clinic School of Medicine, Mayo Clinic, Rochester, Minnesota 55905; and Department of Medicine (A.P.T., J.H., K.V., A.N., A.V.M.), University of California Los Angeles, Los Angeles, California 90095
| | - Aleksey V Matveyenko
- Department of Physiology and Biomedical Engineering (K.R., A.V.M.), Mayo Clinic School of Medicine, Mayo Clinic, Rochester, Minnesota 55905; and Department of Medicine (A.P.T., J.H., K.V., A.N., A.V.M.), University of California Los Angeles, Los Angeles, California 90095
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21
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Rakshit K, Qian J, Ernst J, Matveyenko AV. Circadian variation of the pancreatic islet transcriptome. Physiol Genomics 2016; 48:677-87. [PMID: 27495157 DOI: 10.1152/physiolgenomics.00019.2016] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Accepted: 08/01/2016] [Indexed: 01/09/2023] Open
Abstract
Pancreatic islet failure is a characteristic feature of impaired glucose control in diabetes mellitus. Circadian control of islet function is essential for maintaining proper glucose homeostasis. Circadian variations in transcriptional pathways have been described in diverse cell types and shown to be critical for optimization of cellular function in vivo. In the current study, we utilized Short Time Series Expression Miner (STEM) analysis to identify diurnally expressed transcripts and biological pathways from mouse islets isolated at 4 h intervals throughout the 24 h light-dark cycle. STEM analysis identified 19 distinct chronological model profiles, and genes belonging to each profile were subsequently annotated to significantly enriched Kyoto Encyclopedia of Genes and Genomes biological pathways. Several transcriptional pathways essential for proper islet function (e.g., insulin secretion, oxidative phosphorylation), cell survival (e.g., insulin signaling, apoptosis) and cell proliferation (DNA replication, homologous recombination) demonstrated significant time-dependent variations. Notably, KEGG pathway analysis revealed "protein processing in endoplasmic reticulum - mmu04141" as one of the most enriched time-dependent pathways in islets. This study provides unique data set on time-dependent diurnal profiles of islet gene expression and biological pathways, and suggests that diurnal variation of the islet transcriptome is an important feature of islet homeostasis, which should be taken into consideration for optimal experimental design and interpretation of future islet studies.
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Affiliation(s)
- Kuntol Rakshit
- Department of Physiology and Biomedical Engineering, Mayo Clinic School of Medicine, Mayo Clinic Rochester, Rochester, Minnesota; Department of Medicine, Division of Endocrinology, University of California Los Angeles, David Geffen School of Medicine, Los Angeles, California; and
| | - Jingyi Qian
- Department of Medicine, Division of Endocrinology, University of California Los Angeles, David Geffen School of Medicine, Los Angeles, California; and
| | - Jason Ernst
- Department of Biological Chemistry, University of California Los Angeles, David Geffen School of Medicine, Los Angeles, California
| | - Aleksey V Matveyenko
- Department of Physiology and Biomedical Engineering, Mayo Clinic School of Medicine, Mayo Clinic Rochester, Rochester, Minnesota; Department of Medicine, Division of Endocrinology, University of California Los Angeles, David Geffen School of Medicine, Los Angeles, California; and
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22
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Qian J, Yeh B, Rakshit K, Colwell CS, Matveyenko AV. Circadian Disruption and Diet-Induced Obesity Synergize to Promote Development of β-Cell Failure and Diabetes in Male Rats. Endocrinology 2015; 156:4426-36. [PMID: 26348474 PMCID: PMC4655211 DOI: 10.1210/en.2015-1516] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
There are clear epidemiological associations between circadian disruption, obesity, and pathogenesis of type 2 diabetes. The mechanisms driving these associations are unclear. In the current study, we hypothesized that continuous exposure to constant light (LL) compromises pancreatic β-cell functional and morphological adaption to diet-induced obesity leading to development of type 2 diabetes. To address this hypothesis, we studied wild type Sprague Dawley as well as Period-1 luciferase reporter transgenic rats (Per1-Luc) for 10 weeks under standard light-dark cycle (LD) or LL with concomitant ad libitum access to either standard chow or 60% high-fat diet (HFD). Exposure to HFD led to a comparable increase in food intake, body weight, and adiposity in both LD- and LL-treated rats. However, LL rats displayed profound loss of behavioral circadian rhythms as well as disrupted pancreatic islet clock function characterized by the impairment in the amplitude and the phase islet clock oscillations. Under LD cycle, HFD did not adversely alter diurnal glycemia, diurnal insulinemia, β-cell secretory function as well as β-cell survival, indicating successful adaptation to increased metabolic demand. In contrast, concomitant exposure to LL and HFD resulted in development of hyperglycemia characterized by loss of diurnal changes in insulin secretion, compromised β-cell function, and induction of β-cell apoptosis. This study suggests that circadian disruption and diet-induced obesity synergize to promote development of β-cell failure, likely mediated as a consequence of impaired islet clock function.
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Affiliation(s)
- Jingyi Qian
- Department of Physiology and Biomedical Engineering (K.R., A.V.M.), Mayo Clinic School of Medicine, Mayo Clinic, Rochester, Minnesota 55905; and Department of Medicine (B.Y., A.V.M.) and Laboratory for Circadian and Sleep Medicine (J.Q., C.S.C.), Departments of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, California 90095
| | - Bonnie Yeh
- Department of Physiology and Biomedical Engineering (K.R., A.V.M.), Mayo Clinic School of Medicine, Mayo Clinic, Rochester, Minnesota 55905; and Department of Medicine (B.Y., A.V.M.) and Laboratory for Circadian and Sleep Medicine (J.Q., C.S.C.), Departments of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, California 90095
| | - Kuntol Rakshit
- Department of Physiology and Biomedical Engineering (K.R., A.V.M.), Mayo Clinic School of Medicine, Mayo Clinic, Rochester, Minnesota 55905; and Department of Medicine (B.Y., A.V.M.) and Laboratory for Circadian and Sleep Medicine (J.Q., C.S.C.), Departments of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, California 90095
| | - Christopher S Colwell
- Department of Physiology and Biomedical Engineering (K.R., A.V.M.), Mayo Clinic School of Medicine, Mayo Clinic, Rochester, Minnesota 55905; and Department of Medicine (B.Y., A.V.M.) and Laboratory for Circadian and Sleep Medicine (J.Q., C.S.C.), Departments of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, California 90095
| | - Aleksey V Matveyenko
- Department of Physiology and Biomedical Engineering (K.R., A.V.M.), Mayo Clinic School of Medicine, Mayo Clinic, Rochester, Minnesota 55905; and Department of Medicine (B.Y., A.V.M.) and Laboratory for Circadian and Sleep Medicine (J.Q., C.S.C.), Departments of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, California 90095
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23
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Vieira E, Merino B, Quesada I. Role of the clock gene Rev-erbα in metabolism and in the endocrine pancreas. Diabetes Obes Metab 2015; 17 Suppl 1:106-14. [PMID: 26332975 DOI: 10.1111/dom.12522] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Accepted: 05/01/2015] [Indexed: 01/08/2023]
Abstract
Several hormones are regulated by circadian rhythms to adjust the metabolism to the light/dark cycles and feeding/activity patterns throughout the day. Circadian rhythms are mainly governed by the central clock located in the suprachiasmatic nucleus but also by clocks present in peripheral organs, like the endocrine pancreas. Plasma glucose levels and the main pancreatic hormones insulin and glucagon also exhibit daily variations. Alterations in circadian rhythms are associated with metabolic disturbances and pathologies such as obesity and diabetes. The molecular components of central and peripheral clocks and their regulatory mechanisms are well established. Among the different clock genes, Rev-erbα is considered one of the key links between circadian rhythms and metabolism. Rev-erbα is a critical part of a negative feedback loop in the core circadian clock and modulates the clock oscillatory properties. In addition, Rev-erbα plays an important role in the regulation of lipid and glucose metabolism, thermogenesis, adipocyte and muscle differentiation as well as mitochondrial function. In the endocrine pancreas, Rev-erbα regulates insulin and glucagon secretion and pancreatic β-cell proliferation. In the present review, we discuss all these subjects and, particularly, the role of the clock gene Rev-erbα in the endocrine pancreas.
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Affiliation(s)
- E Vieira
- Department of Cell Biology and Genetic, State University of Maringá, Maringá, Brazil
| | - B Merino
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM) and Instituto de Bioingeniería, Universidad Miguel Hernandez, Elche, Spain
| | - I Quesada
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM) and Instituto de Bioingeniería, Universidad Miguel Hernandez, Elche, Spain
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Rakshit K, Qian J, Colwell CS, Matveyenko AV. The islet circadian clock: entrainment mechanisms, function and role in glucose homeostasis. Diabetes Obes Metab 2015; 17 Suppl 1:115-22. [PMID: 26332976 PMCID: PMC4562066 DOI: 10.1111/dom.12523] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Accepted: 05/01/2015] [Indexed: 12/20/2022]
Abstract
Circadian regulation of glucose homeostasis and insulin secretion has long been appreciated as an important feature of metabolic control in humans. Circadian disruption is becoming increasingly prevalent in today's society and is likely responsible in part for the considerable rise in type 2 diabetes (T2DM) and metabolic syndrome worldwide. Thus, understanding molecular mechanisms driving the inter-relationship between circadian disruption and T2DM is important in context of disease prevention and therapeutics. In this regard, the goal of this article is to highlight the role of the circadian system, and islet circadian clocks in particular, as potential regulators of β-cell function and survival. To date, studies have shown that islet clocks respond to changes in feeding patterns, and regulate a multitude of critical cellular processes in insulin secreting β-cells (e.g. insulin exocytosis, mitochondrial function and response to oxidative stress). Subsequently, either genetic or environmental disruption of normal islet clock performance compromises β-cell function and leads to loss of glycaemic control. Future work is warranted to further unravel the role of circadian clocks in human islet function in health and contributions to pathogenesis of T2DM.
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Affiliation(s)
- Kuntol Rakshit
- Department of Physiology and Biomedical Engineering, Mayo Clinic School of Medicine, Mayo Clinic Rochester, Minnesota
| | - Jingyi Qian
- Laboratory for Circadian and Sleep Medicine, Departments of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, David Geffen School of Medicine, Los Angeles, California
| | - Christopher S. Colwell
- Laboratory for Circadian and Sleep Medicine, Departments of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, David Geffen School of Medicine, Los Angeles, California
| | - Aleksey V. Matveyenko
- Department of Physiology and Biomedical Engineering, Mayo Clinic School of Medicine, Mayo Clinic Rochester, Minnesota
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25
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In vitro comparison of duration of action of melatonin agonists on melatonin MT1 receptor: possible link between duration of action and dissociation rate from receptor. Eur J Pharmacol 2015; 757:42-52. [PMID: 25797281 DOI: 10.1016/j.ejphar.2015.03.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Revised: 02/03/2015] [Accepted: 03/01/2015] [Indexed: 12/15/2022]
Abstract
Melatonin MT1 and MT2 receptors are Gi protein-coupled receptors and promising therapeutic targets for a number of diseases. A proportion of G protein-coupled receptor agonists and antagonists have been classified according to their duration of action, which influences their pharmacological efficacy. However, the duration of action of melatonin agonists remains unclear. In this study, we investigated the duration of action of melatonin agonists (melatonin, 2-iodomelatonin, ramelteon, and the ramelteon metabolite M-II) at the melatonin MT1 receptor, which is more resistant to agonist-induced desensitization than the melatonin MT2 receptor. In Chinese hamster ovary cells stably expressing the human melatonin MT1 receptor, significant differences in the duration of action were observed after 2-h pretreatment with agonists followed by washout. In contrast to melatonin and M-II, the agonist activities of ramelteon and 2-iodomelatonin were persistent (i.e. inhibition of forskolin-stimulated cAMP formation and increase in ERK 1/2 phosphorylation) even after repeated washouts. Similar activities were observed for INS-1 cells endogenously expressing the rat MT1 receptor. Further, we examined potential factors linked to the duration of action. Residual activities of melatonin agonists after washout strongly correlated with their dissociation rates from the human melatonin MT1 receptor, but not their lipophilicity or extent of desensitization. These data suggest that the in vitro duration of action significantly differs between melatonin agonists and might dictate dissociation kinetics. Characterization of these in vitro properties may facilitate further in vivo study of the duration of action.
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26
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Costes S, Boss M, Thomas AP, Matveyenko AV. Activation of Melatonin Signaling Promotes β-Cell Survival and Function. Mol Endocrinol 2015; 29:682-92. [PMID: 25695910 DOI: 10.1210/me.2014-1293] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Type 2 diabetes mellitus (T2DM) is characterized by pancreatic islet failure due to loss of β-cell secretory function and mass. Studies have identified a link between a variance in the gene encoding melatonin (MT) receptor 2, T2DM, and impaired insulin secretion. This genetic linkage raises the question whether MT signaling plays a role in regulation of β-cell function and survival in T2DM. To address this postulate, we used INS 832/13 cells to test whether activation of MT signaling attenuates proteotoxicity-induced β-cell apoptosis and through which molecular mechanism. We also used nondiabetic and T2DM human islets to test the potential of MT signaling to attenuate deleterious effects of glucotoxicity and T2DM on β-cell function. MT signaling in β-cells (with duration designed to mimic typical nightly exposure) significantly enhanced activation of the cAMP-dependent signal transduction pathway and attenuated proteotoxicity-induced β-cell apoptosis evidenced by reduced caspase-3 cleavage (∼40%), decreased activation of stress-activated protein kinase/Jun-amino-terminal kinase (∼50%) and diminished oxidative stress response. Activation of MT signaling in human islets was shown to restore glucose-stimulated insulin secretion in islets exposed to chronic hyperglycemia as well as in T2DM islets. Our data suggest that β-cell MT signaling is important for the regulation of β-cell survival and function and implies a preventative and therapeutic potential for preservation of β-cell mass and function in T2DM.
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Affiliation(s)
- Safia Costes
- Department of Medicine (S.C., M.B., A.P.T., A.V.M.), David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California 90095; and Department of Physiology and Biomedical Engineering (A.V.M.), Mayo Clinic School of Medicine, Mayo Clinic Rochester, Minnesota 55905
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27
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Martins RS, Ahmad A, Silva LF, Andrade LH. Exploiting sequential lipase-catalyzed reactions to achieve enantiomerically pure chiral primary alcohols. RSC Adv 2015. [DOI: 10.1039/c5ra06469d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The lipase-catalyzed enantioselective acetylation of benzofused cycloalkane-containing primary alcohols with vinyl acetate was performed and allowed the isolation of enantiopure alcohols.
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Affiliation(s)
| | - Anees Ahmad
- Universidade de São Paulo
- Instituto de Química
- Brazil
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