1
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Liu Q, Zhang Y. Biological Clock Perspective in Rheumatoid Arthritis. Inflammation 2024:10.1007/s10753-024-02120-4. [PMID: 39126449 DOI: 10.1007/s10753-024-02120-4] [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: 02/17/2024] [Revised: 06/13/2024] [Accepted: 08/01/2024] [Indexed: 08/12/2024]
Abstract
Rheumatoid arthritis (RA) is a chronic autoimmune disease characterized by systemic polyarticular pain, and its main pathological features include inflammatory cell infiltration, synovial fibroblast proliferation, and cartilage erosion. Immune cells, synovial cells and neuroendocrine factors play pivotal roles in the pathophysiological mechanism underlying rheumatoid arthritis. Biological clock genes regulate immune cell functions, which is linked to rhythmic changes in arthritis pathology. Additionally, the interaction between biological clock genes and neuroendocrine factors is also involved in rhythmic changes in rheumatoid arthritis. This review provides an overview of the contributions of circadian rhythm genes to RA pathology, including their interaction with the immune system and their involvement in regulating the secretion and function of neuroendocrine factors. A molecular understanding of the role of the circadian rhythm in RA may offer insights for effective disease management.
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Affiliation(s)
- Qingxue Liu
- Gengjiu Clinical College of Anhui Medical University; Anhui Zhongke Gengjiu Hospital, Hefei, 230051, China
| | - Yihao Zhang
- Department of Health Inspection and Quarantine, School of Public Health, Anhui Medical University, 81 Meishan Rd, Hefei, 230032, China.
- Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, Hefei, 230032, China.
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2
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Al-Ansari N, Samuel SM, Büsselberg D. Unveiling the Protective Role of Melatonin in Osteosarcoma: Current Knowledge and Limitations. Biomolecules 2024; 14:145. [PMID: 38397382 PMCID: PMC10886489 DOI: 10.3390/biom14020145] [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: 12/13/2023] [Revised: 01/18/2024] [Accepted: 01/21/2024] [Indexed: 02/25/2024] Open
Abstract
Melatonin, an endogenous neurohormone produced by the pineal gland, has received increased interest due to its potential anti-cancer properties. Apart from its well-known role in the sleep-wake cycle, extensive scientific evidence has shown its role in various physiological and pathological processes, such as inflammation. Additionally, melatonin has demonstrated promising potential as an anti-cancer agent as its function includes inhibition of tumorigenesis, induction of apoptosis, and regulation of anti-tumor immune response. Although a precise pathophysiological mechanism is yet to be established, several pathways related to the regulation of cell cycle progression, DNA repair mechanisms, and antioxidant activity have been implicated in the anti-neoplastic potential of melatonin. In the current manuscript, we focus on the potential anti-cancer properties of melatonin and its use in treating and managing pediatric osteosarcoma. This aggressive bone tumor primarily affects children and adolescents and is treated mainly by surgical and radio-oncological interventions, which has improved survival rates among affected individuals. Significant disadvantages to these interventions include disease recurrence, therapy-related toxicity, and severe/debilitating side effects that the patients have to endure, significantly affecting their quality of life. Melatonin has therapeutic effects when used for treating osteosarcoma, attributed to its ability to halt cancer cell proliferation and trigger apoptotic cell death, thereby enhancing chemotherapeutic efficacy. Furthermore, the antioxidative function of melatonin alleviates harmful side effects of chemotherapy-induced oxidative damage, aiding in decreasing therapeutic toxicities. The review concisely explains the many mechanisms by which melatonin targets osteosarcoma, as evidenced by significant results from several in vitro and animal models. Nevertheless, if further explored, human trials remain a challenge that could shed light and support its utility as an adjunctive therapeutic modality for treating osteosarcoma.
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Affiliation(s)
- Nojoud Al-Ansari
- Department of Medical Education, Weill Cornell Medicine-Qatar, Education City, Qatar Foundation, Doha P.O. Box 24144, Qatar;
| | - Samson Mathews Samuel
- Department of Physiology and Biophysics, Weill Cornell Medicine-Qatar, Education City, Qatar Foundation, Doha P.O. Box 24144, Qatar
| | - Dietrich Büsselberg
- Department of Physiology and Biophysics, Weill Cornell Medicine-Qatar, Education City, Qatar Foundation, Doha P.O. Box 24144, Qatar
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3
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Lei X, Xu Z, Huang L, Huang Y, Tu S, Xu L, Liu D. The potential influence of melatonin on mitochondrial quality control: a review. Front Pharmacol 2024; 14:1332567. [PMID: 38273825 PMCID: PMC10808166 DOI: 10.3389/fphar.2023.1332567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Accepted: 12/31/2023] [Indexed: 01/27/2024] Open
Abstract
Mitochondria are critical for cellular energetic metabolism, intracellular signaling orchestration and programmed death regulation. Therefore, mitochondrial dysfunction is associated with various pathogeneses. The maintenance of mitochondrial homeostasis and functional recovery after injury are coordinated by mitochondrial biogenesis, dynamics and autophagy, which are collectively referred to as mitochondrial quality control. There is increasing evidence that mitochondria are important targets for melatonin to exert protective effects under pathological conditions. Melatonin, an evolutionarily conserved tryptophan metabolite, can be synthesized, transported and metabolized in mitochondria. In this review, we summarize the important role of melatonin in the damaged mitochondria elimination and mitochondrial energy supply recovery by regulating mitochondrial quality control, which may provide new strategies for clinical treatment of mitochondria-related diseases.
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Affiliation(s)
- Xudan Lei
- Radiation Oncology Key Laboratory of Sichuan Province, Department of Experimental Research, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Center, Sichuan Cancer Hospital and Institute, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, China
| | - Zhenni Xu
- Radiation Oncology Key Laboratory of Sichuan Province, Department of Experimental Research, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Center, Sichuan Cancer Hospital and Institute, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, China
| | - Lingxiao Huang
- Radiation Oncology Key Laboratory of Sichuan Province, Department of Experimental Research, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Center, Sichuan Cancer Hospital and Institute, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, China
| | - Yujun Huang
- College of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Siyu Tu
- College of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Lu Xu
- Radiation Oncology Key Laboratory of Sichuan Province, Department of Experimental Research, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Center, Sichuan Cancer Hospital and Institute, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, China
| | - Dengqun Liu
- Radiation Oncology Key Laboratory of Sichuan Province, Department of Experimental Research, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Center, Sichuan Cancer Hospital and Institute, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu, China
- College of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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4
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Fernández-Martínez J, Ramírez-Casas Y, Yang Y, Aranda-Martínez P, Martínez-Ruiz L, Escames G, Acuña-Castroviejo D. From Chronodisruption to Sarcopenia: The Therapeutic Potential of Melatonin. Biomolecules 2023; 13:1779. [PMID: 38136651 PMCID: PMC10741491 DOI: 10.3390/biom13121779] [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: 10/30/2023] [Revised: 12/04/2023] [Accepted: 12/07/2023] [Indexed: 12/24/2023] Open
Abstract
Sarcopenia is an age-related condition that involves a progressive decline in muscle mass and function, leading to increased risk of falls, frailty, and mortality. Although the exact mechanisms are not fully understood, aging-related processes like inflammation, oxidative stress, reduced mitochondrial capacity, and cell apoptosis contribute to this decline. Disruption of the circadian system with age may initiate these pathways in skeletal muscle, preceding the onset of sarcopenia. At present, there is no pharmacological treatment for sarcopenia, only resistance exercise and proper nutrition may delay its onset. Melatonin, derived from tryptophan, emerges as an exceptional candidate for treating sarcopenia due to its chronobiotic, antioxidant, and anti-inflammatory properties. Its impact on mitochondria and organelle, where it is synthesized and crucial in aging skeletal muscle, further highlights its potential. In this review, we discuss the influence of clock genes in muscular aging, with special reference to peripheral clock genes in the skeletal muscle, as well as their relationship with melatonin, which is proposed as a potential therapy against sarcopenia.
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Affiliation(s)
- José Fernández-Martínez
- Centro de Investigación Biomédica, Facultad de Medicina, Departamento de Fisiología, Instituto de Biotecnología, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, 18016 Granada, Spain; (J.F.-M.); (Y.R.-C.); (P.A.-M.); (L.M.-R.); (G.E.)
- Instituto de Investigación Biosanitaria (Ibs.Granada), Hospital Universitario San Cecilio, 18016 Granada, Spain
| | - Yolanda Ramírez-Casas
- Centro de Investigación Biomédica, Facultad de Medicina, Departamento de Fisiología, Instituto de Biotecnología, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, 18016 Granada, Spain; (J.F.-M.); (Y.R.-C.); (P.A.-M.); (L.M.-R.); (G.E.)
- Instituto de Investigación Biosanitaria (Ibs.Granada), Hospital Universitario San Cecilio, 18016 Granada, Spain
| | - Yang Yang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, Faculty of Life Sciences and Medicine, Northwest University, Xi’an 710069, China;
| | - Paula Aranda-Martínez
- Centro de Investigación Biomédica, Facultad de Medicina, Departamento de Fisiología, Instituto de Biotecnología, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, 18016 Granada, Spain; (J.F.-M.); (Y.R.-C.); (P.A.-M.); (L.M.-R.); (G.E.)
- Instituto de Investigación Biosanitaria (Ibs.Granada), Hospital Universitario San Cecilio, 18016 Granada, Spain
| | - Laura Martínez-Ruiz
- Centro de Investigación Biomédica, Facultad de Medicina, Departamento de Fisiología, Instituto de Biotecnología, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, 18016 Granada, Spain; (J.F.-M.); (Y.R.-C.); (P.A.-M.); (L.M.-R.); (G.E.)
- Instituto de Investigación Biosanitaria (Ibs.Granada), Hospital Universitario San Cecilio, 18016 Granada, Spain
| | - Germaine Escames
- Centro de Investigación Biomédica, Facultad de Medicina, Departamento de Fisiología, Instituto de Biotecnología, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, 18016 Granada, Spain; (J.F.-M.); (Y.R.-C.); (P.A.-M.); (L.M.-R.); (G.E.)
- Instituto de Investigación Biosanitaria (Ibs.Granada), Hospital Universitario San Cecilio, 18016 Granada, Spain
- Centro de Investigación Biomédica en Red de Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
| | - Darío Acuña-Castroviejo
- Centro de Investigación Biomédica, Facultad de Medicina, Departamento de Fisiología, Instituto de Biotecnología, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, 18016 Granada, Spain; (J.F.-M.); (Y.R.-C.); (P.A.-M.); (L.M.-R.); (G.E.)
- Instituto de Investigación Biosanitaria (Ibs.Granada), Hospital Universitario San Cecilio, 18016 Granada, Spain
- Centro de Investigación Biomédica en Red de Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III (ISCIII), 28029 Madrid, Spain
- UGC de Laboratorios Clínicos, Hospital Universitario San Cecilio, 18016 Granada, Spain
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5
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Zhang D, Jia X, Lin D, Ma J. Melatonin and ferroptosis: Mechanisms and therapeutic implications. Biochem Pharmacol 2023; 218:115909. [PMID: 37931663 DOI: 10.1016/j.bcp.2023.115909] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 11/03/2023] [Accepted: 11/03/2023] [Indexed: 11/08/2023]
Abstract
Ferroptosis, a regulated form of cell death, is characterized by iron-dependent lipid peroxidation leading to oxidative damage to cell membranes. Cell sensitivity to ferroptosis is influenced by factors such as iron overload, lipid metabolism, and the regulation of the antioxidant system. Melatonin, with its demonstrated capacity to chelate iron, modulate iron metabolism proteins, regulate lipid peroxidation, and regulate antioxidant systems, has promise as a potential therapeutic agent in mediating ferroptosis. The availability of approved drugs targeting ferroptosis is limited; therefore, melatonin is a candidate for broad application due to its safety and efficacy in attenuating ferroptosis in noncancerous diseases. Melatonin has been demonstrated to attenuate ferroptosis in cellular and animal models of noncancerous diseases, showcasing effectiveness in organs such as the heart, brain, lung, liver, kidney, and bone. This review outlines the molecular mechanisms of ferroptosis, investigates melatonin's potential effects on ferroptosis, and discusses melatonin's therapeutic potential as a promising intervention against diseases associated with ferroptosis. Through this discourse, we aim to lay a strong foundation for developing melatonin as a therapeutic strategy to modulate ferroptosis in a variety of disease contexts.
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Affiliation(s)
- Dongni Zhang
- Department of Anesthesiology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - Xiaotong Jia
- Department of Anesthesiology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China.
| | - Duomao Lin
- Department of Anesthesiology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China.
| | - Jun Ma
- Department of Anesthesiology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China.
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6
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Hardeland R. Redox Biology of Melatonin: Discriminating Between Circadian and Noncircadian Functions. Antioxid Redox Signal 2022; 37:704-725. [PMID: 35018802 PMCID: PMC9587799 DOI: 10.1089/ars.2021.0275] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 12/31/2021] [Indexed: 12/15/2022]
Abstract
Melatonin has not only to be seen as a regulator of circadian clocks. In addition to its chronobiotic functions, it displays other actions, especially in cell protection. This includes antioxidant, anti-inflammatory, and mitochondria-protecting effects. Although protection is also modulated by the circadian system, the respective actions of melatonin can be distinguished and differ with regard to dose requirements in therapeutic settings. It is the aim of this article to outline these differences in terms of function, signaling, and dosage. Focus has been placed on both the nexus and the dissecting properties between circadian and noncircadian mechanisms. This has to consider details beyond the classic view of melatonin's role, such as widespread synthesis in extrapineal tissues, formation in mitochondria, effects on the mitochondrial permeability transition pore, and secondary signaling, for example, via upregulation of sirtuins and by regulating noncoding RNAs, especially microRNAs. The relevance of these findings, the differences and connections between circadian and noncircadian functions of melatonin shed light on the regulation of inflammation, including macrophage/microglia polarization, damage-associated molecular patterns, avoidance of cytokine storms, and mitochondrial functions, with numerous consequences to antioxidative protection, that is, aspects of high actuality with regard to deadly viral and bacterial diseases. Antioxid. Redox Signal. 37, 704-725.
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Affiliation(s)
- Rüdiger Hardeland
- Johann Friedrich Blumenbach Institute of Zoology and Anthropology, University of Goettingen, Goettingen, Germany
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7
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Tobeiha M, Jafari A, Fadaei S, Mirazimi SMA, Dashti F, Amiri A, Khan H, Asemi Z, Reiter RJ, Hamblin MR, Mirzaei H. Evidence for the Benefits of Melatonin in Cardiovascular Disease. Front Cardiovasc Med 2022; 9:888319. [PMID: 35795371 PMCID: PMC9251346 DOI: 10.3389/fcvm.2022.888319] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 05/10/2022] [Indexed: 12/13/2022] Open
Abstract
The pineal gland is a neuroendocrine gland which produces melatonin, a neuroendocrine hormone with critical physiological roles in the circadian rhythm and sleep-wake cycle. Melatonin has been shown to possess anti-oxidant activity and neuroprotective properties. Numerous studies have shown that melatonin has significant functions in cardiovascular disease, and may have anti-aging properties. The ability of melatonin to decrease primary hypertension needs to be more extensively evaluated. Melatonin has shown significant benefits in reducing cardiac pathology, and preventing the death of cardiac muscle in response to ischemia-reperfusion in rodent species. Moreover, melatonin may also prevent the hypertrophy of the heart muscle under some circumstances, which in turn would lessen the development of heart failure. Several currently used conventional drugs show cardiotoxicity as an adverse effect. Recent rodent studies have shown that melatonin acts as an anti-oxidant and is effective in suppressing heart damage mediated by pharmacologic drugs. Therefore, melatonin has been shown to have cardioprotective activity in multiple animal and human studies. Herein, we summarize the most established benefits of melatonin in the cardiovascular system with a focus on the molecular mechanisms of action.
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Affiliation(s)
- Mohammad Tobeiha
- School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
- Student Research Committee, Kashan University of Medical Sciences, Kashan, Iran
| | - Ameneh Jafari
- Advanced Therapy Medicinal Product (ATMP) Department, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, Tehran, Iran
- Proteomics Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sara Fadaei
- Department of Internal Medicine and Endocrinology, Beheshti University of Medical Sciences, Tehran, Iran
| | - Seyed Mohammad Ali Mirazimi
- School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
- Student Research Committee, Kashan University of Medical Sciences, Kashan, Iran
| | - Fatemeh Dashti
- School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
- Student Research Committee, Kashan University of Medical Sciences, Kashan, Iran
| | - Atefeh Amiri
- Department of Medical Biotechnology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Haroon Khan
- Department of Pharmacy, Abdul Wali Khan University, Mardan, Pakistan
| | - Zatollah Asemi
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Russel J. Reiter
- Department of Cell Systems and Anatomy, UT Health. Long School of Medicine, San Antonio, TX, United States
| | - Michael R. Hamblin
- Laser Research Centre, Faculty of Health Science, University of Johannesburg, Johannesburg, South Africa
| | - Hamed Mirzaei
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
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8
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Zhao ZX, Yuan X, Cui YY, Liu J, Shen J, Jin BY, Feng BC, Zhai YJ, Zheng MQ, Kou GJ, Zhou RC, Li LX, Zuo XL, Li SY, Li YQ. Melatonin Mitigates Oxazolone-Induced Colitis in Microbiota-Dependent Manner. Front Immunol 2022; 12:783806. [PMID: 35116024 PMCID: PMC8805729 DOI: 10.3389/fimmu.2021.783806] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 12/23/2021] [Indexed: 12/18/2022] Open
Abstract
Levels of type 2 cytokines are elevated in the blood and intestinal tissues of ulcerative colitis (UC) patients in the active phase; this phenomenon indicates the participation of type 2 immune response in UC progression. The beneficial effects of melatonin in dextran sodium sulfate (DSS) and 2,4,6-trinitrobenzene sulfonic acid (TNBS) colitis models have been illustrated, but its role in the oxazolone (Oxa)-induced colitis model (driven by type 2 immune response) remains relatively unknown. We investigated the relationship between melatonin concentration and the severity of UC, revealing a significantly negative correlation. Subsequently, we investigated the effects of melatonin in Oxa-induced colitis mice and the potential underlying mechanisms. Administration of melatonin significantly counteracted body weight loss, colon shortening, and neutrophil infiltration in Oxa-induced colitis mice. Melatonin treatment mitigated Oxa-induced colitis by suppressing type 2 immune response. In addition, melatonin attenuated intestinal permeability by enhancing the expression of ZO-1 and occludin in colitis mice. Interestingly, the protective effect of melatonin was abolished when the mice were co-housed, indicating that the regulation of gut microbiota by melatonin was critical in alleviating Oxa-induced colitis. Subsequently, 16S rRNA sequencing was performed to explore the microbiota composition. Decreased richness and diversity of intestinal microbiota at the operational taxonomic unit (OTU) level resulted from melatonin treatment. Melatonin also elevated the abundance of Bifidobacterium, a well-known probiotic, and reduced proportions of several harmful bacterial genera, such as Desulfovibrio, Peptococcaceae, and Lachnospiraceae. Fecal microbiota transplantation (FMT) was used to explore the role of microbiota in the function of melatonin in Oxa-induced colitis. Microbiota transplantation from melatonin-treated mice alleviated Oxa-induced colitis, suggesting that the microbiome participates in the relief of Oxa-induced colitis by melatonin. Our findings demonstrate that melatonin ameliorates Oxa-induced colitis in a microbiota-dependent manner, suggesting the therapeutic potential of melatonin in treating type 2 immunity-associated UC.
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Affiliation(s)
- Zi-xiao Zhao
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Laboratory of Translational Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Xi Yuan
- Advanced Medical Research Institute, Shandong University, Jinan, China
| | - Yan-yan Cui
- Advanced Medical Research Institute, Shandong University, Jinan, China
| | - Jun Liu
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Laboratory of Translational Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Robot Engineering Laboratory for Precise Diagnosis and Therapy of GI Tumor, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Jing Shen
- Advanced Medical Research Institute, Shandong University, Jinan, China
| | - Bi-ying Jin
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Laboratory of Translational Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Bing-cheng Feng
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Laboratory of Translational Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Yun-jiao Zhai
- Advanced Medical Research Institute, Shandong University, Jinan, China
| | - Meng-qi Zheng
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Laboratory of Translational Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Guan-jun Kou
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Laboratory of Translational Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Ru-chen Zhou
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Laboratory of Translational Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Li-xiang Li
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Laboratory of Translational Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Robot Engineering Laboratory for Precise Diagnosis and Therapy of GI Tumor, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Xiu-li Zuo
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Laboratory of Translational Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Robot Engineering Laboratory for Precise Diagnosis and Therapy of GI Tumor, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Shi-yang Li
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Advanced Medical Research Institute, Shandong University, Jinan, China
- Key Laboratory for Experimental Teratology of Ministry of Education, Shandong University, Jinan, China
| | - Yan-qing Li
- Department of Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Laboratory of Translational Gastroenterology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
- Robot Engineering Laboratory for Precise Diagnosis and Therapy of GI Tumor, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
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9
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Yawoot N, Govitrapong P, Tocharus C, Tocharus J. Ischemic stroke, obesity, and the anti-inflammatory role of melatonin. Biofactors 2021; 47:41-58. [PMID: 33135223 DOI: 10.1002/biof.1690] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 10/14/2020] [Indexed: 02/06/2023]
Abstract
Obesity is a predominant risk factor in ischemic stroke and is commonly comorbid with it. Pathologies following these conditions are associated with systemic and local inflammation. Moreover, there is increasing evidence that the susceptibility for ischemic brain damage increases substantially in experimental models of ischemic stroke with concomitant obesity. Herein, we explore the proinflammatory events that occur during ischemic stroke and obesity, and we discuss the influence of obesity on the inflammatory response and cerebral damage outcomes in experimental models of brain ischemia. In addition, because melatonin is a neurohormone widely reported to exhibit protective effects in various diseases, this study also demonstrates the anti-inflammatory role and possible mechanistic actions of melatonin in both epidemic diseases. A summary of research findings suggests that melatonin administration has great potential to exert an anti-inflammatory role and provide protection against obesity and ischemic stroke conditions. However, the efficacy of this hormonal treatment on ischemic stroke with concomitant obesity, when more serious inflammation is generated, is still lacking.
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Affiliation(s)
- Nuttapong Yawoot
- Department of Physiology, Chiang Mai University, Chiang Mai, Thailand
- Graduate School, Chiang Mai University, Chiang Mai, Thailand
| | | | | | - Jiraporn Tocharus
- Department of Physiology, Chiang Mai University, Chiang Mai, Thailand
- Functional Food Research Center for Well-being, Chiang Mai University, Chiang Mai, Thailand
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10
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McCauley JP, Petroccione MA, D'Brant LY, Todd GC, Affinnih N, Wisnoski JJ, Zahid S, Shree S, Sousa AA, De Guzman RM, Migliore R, Brazhe A, Leapman RD, Khmaladze A, Semyanov A, Zuloaga DG, Migliore M, Scimemi A. Circadian Modulation of Neurons and Astrocytes Controls Synaptic Plasticity in Hippocampal Area CA1. Cell Rep 2020; 33:108255. [PMID: 33053337 PMCID: PMC7700820 DOI: 10.1016/j.celrep.2020.108255] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 08/21/2020] [Accepted: 09/18/2020] [Indexed: 12/18/2022] Open
Abstract
Most animal species operate according to a 24-h period set by the suprachiasmatic nucleus (SCN) of the hypothalamus. The rhythmic activity of the SCN modulates hippocampal-dependent memory, but the molecular and cellular mechanisms that account for this effect remain largely unknown. Here, we identify cell-type-specific structural and functional changes that occur with circadian rhythmicity in neurons and astrocytes in hippocampal area CA1. Pyramidal neurons change the surface expression of NMDA receptors. Astrocytes change their proximity to synapses. Together, these phenomena alter glutamate clearance, receptor activation, and integration of temporally clustered excitatory synaptic inputs, ultimately shaping hippocampal-dependent learning in vivo. We identify corticosterone as a key contributor to changes in synaptic strength. These findings highlight important mechanisms through which neurons and astrocytes modify the molecular composition and structure of the synaptic environment, contribute to the local storage of information in the hippocampus, and alter the temporal dynamics of cognitive processing.
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Affiliation(s)
- John P McCauley
- Department of Biology, SUNY Albany, 1400 Washington Avenue, Albany, NY 12222, USA
| | | | - Lianna Y D'Brant
- Department of Biology, SUNY Albany, 1400 Washington Avenue, Albany, NY 12222, USA; Department of Physics, SUNY Albany, 1400 Washington Avenue, Albany, NY 12222, USA
| | - Gabrielle C Todd
- Department of Biology, SUNY Albany, 1400 Washington Avenue, Albany, NY 12222, USA
| | - Nurat Affinnih
- Department of Biology, SUNY Albany, 1400 Washington Avenue, Albany, NY 12222, USA
| | - Justin J Wisnoski
- Department of Biology, SUNY Albany, 1400 Washington Avenue, Albany, NY 12222, USA
| | - Shergil Zahid
- Department of Biology, SUNY Albany, 1400 Washington Avenue, Albany, NY 12222, USA
| | - Swasti Shree
- Department of Biology, SUNY Albany, 1400 Washington Avenue, Albany, NY 12222, USA; Bethlehem Central High School, 700 Delaware Avenue, Delmar, NY 12054, USA
| | - Alioscka A Sousa
- Federal University of São Paulo, Department of Biochemistry, 100 Rua Tres de Maio, São Paulo 04044-020, Brazil; National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, 9000 Rockville Pike, Bethesda, MD 20892, USA
| | - Rose M De Guzman
- Department of Psychology, SUNY Albany, 1400 Washington Avenue, Albany, NY 12222, USA
| | - Rosanna Migliore
- Institute of Biophysics, National Research Council, 153 Via Ugo La Malfa, Palermo 90146, Italy
| | - Alexey Brazhe
- Department of Biophysics, Lomonosov Moscow State University, Leninskie Gory 1/12, Moscow 119234, Russia; Department of Molecular Neurobiology, Institute of Bioorganic Chemistry, Ulitsa Miklukho-Maklaya 16/10, Moscow 117997, Russia
| | - Richard D Leapman
- National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, 9000 Rockville Pike, Bethesda, MD 20892, USA
| | - Alexander Khmaladze
- Department of Physics, SUNY Albany, 1400 Washington Avenue, Albany, NY 12222, USA
| | - Alexey Semyanov
- Department of Molecular Neurobiology, Institute of Bioorganic Chemistry, Ulitsa Miklukho-Maklaya 16/10, Moscow 117997, Russia; Sechenov First Moscow State Medical University, Bolshaya Pirogovskaya Ulitsa 19с1, Moscow 119146, Russia
| | - Damian G Zuloaga
- Department of Psychology, SUNY Albany, 1400 Washington Avenue, Albany, NY 12222, USA
| | - Michele Migliore
- Institute of Biophysics, National Research Council, 153 Via Ugo La Malfa, Palermo 90146, Italy
| | - Annalisa Scimemi
- Department of Biology, SUNY Albany, 1400 Washington Avenue, Albany, NY 12222, USA.
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11
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Protective effects of melatonin on male fertility preservation and reproductive system. Cryobiology 2020; 95:1-8. [DOI: 10.1016/j.cryobiol.2020.01.018] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 01/25/2020] [Indexed: 12/17/2022]
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12
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Samanta S. Melatonin: an endogenous miraculous indolamine, fights against cancer progression. J Cancer Res Clin Oncol 2020; 146:1893-1922. [PMID: 32583237 DOI: 10.1007/s00432-020-03292-w] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 06/12/2020] [Indexed: 02/07/2023]
Abstract
PURPOSE Melatonin is an amphipathic indolamine molecule ubiquitously present in all organisms ranging from cyanobacteria to humans. The pineal gland is the site of melatonin synthesis and secretion under the influence of the retinohypothalamic tract. Some extrapineal tissues (skin, lens, gastrointestinal tract, testis, ovary, lymphocytes, and astrocytes) also enable to produce melatonin. Physiologically, melatonin regulates various functions like circadian rhythm, sleep-wake cycle, gonadal activity, redox homeostasis, neuroprotection, immune-modulation, and anticancer effects in the body. Inappropriate melatonin secretion advances the aging process, tumorigenesis, visceral adiposity, etc. METHODS: For the preparation of this review, I had reviewed the literature on the multidimensional activities of melatonin from the NCBI website database PubMed, Springer Nature, Science Direct (Elsevier), Wiley Online ResearchGate, and Google Scholar databases to search relevant articles. Specifically, I focused on the roles and mechanisms of action of melatonin in cancer prevention. RESULTS The actions of melatonin are primarily mediated by G-protein coupled MT1 and MT2 receptors; however, several intracellular protein and nuclear receptors can modulate the activity. Normal levels of the melatonin protect the cells from adverse effects including carcinogenesis. Therapeutically, melatonin has chronomedicinal value; it also shows a remarkable anticancer property. The oncostatic action of melatonin is multidimensional, associated with the advancement of apoptosis, the arrest of the cell cycle, inhibition of metastasis, and antioxidant activity. CONCLUSION The present review has emphasized the mechanism of the anti-neoplastic activity of melatonin that increases the possibilities of the new approaches in cancer therapy.
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Affiliation(s)
- Saptadip Samanta
- Department Physiology, Midnapore College, Paschim Medinipur, Midnapore, West Bengal, 721101, India.
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13
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Gu F, Liu Y, Liu Y, Cheng S, Yang J, Kang M, Duan W, Liu Y. Distinct functions and prognostic values of RORs in gastric cancer. Open Med (Wars) 2020; 15:424-434. [PMID: 33336001 PMCID: PMC7711859 DOI: 10.1515/med-2020-0406] [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: 05/08/2018] [Revised: 01/06/2020] [Accepted: 02/22/2020] [Indexed: 11/15/2022] Open
Abstract
Retinoic acid receptor-related orphan receptors (RORs) are frequently abnormally expressed in several human malignancies, including gastric cancer (GC). RORs are involved in the development and progression of GC through Wnt signaling pathway receptors and other common receptors. However, the prognostic roles of individual RORs in patients with GC remain elusive. We accessed the prognostic roles of three RORs (RORα, RORβ, and RORγ) through "The Kaplan-Meier plotter" (KM plotter) database in patients with GC. For all patients with GC who were followed for 20 years, the low mRNA expression of all three RORs showed a significant correlation with better outcomes. We further accessed the prognostic value of individual RORs in different clinical pathological features including Lauren classification, clinical stages, pathological grades, HER2 status, and different treatments methods. The RORs demonstrated critical prognostic roles in GC. Expressions of RORs were higher in GC tissues when compared with normal gastric tissues. Moreover, knockdown of RORs significantly inhibited cell proliferation and migration, suggesting an oncogenic role of RORs in human GC. These findings suggest potential roles of RORs as biomarkers for GC prognosis and as oncogenes in GC.
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Affiliation(s)
- Feng Gu
- Department of Hepatobiliary, Hospital of HeBei University, Baoding, China
| | - Yuming Liu
- General Hospital of Huabei Petroleum Administration Bureau, Renqiu, China
| | - Yuan Liu
- Beijing Youan Hospital, Capital Medical University, Beijing, China
| | - Shujie Cheng
- Department of Hepatobiliary, Hospital of HeBei University, Baoding, China
| | - Jihong Yang
- Department of Hepatobiliary, Hospital of HeBei University, Baoding, China
| | - Ming Kang
- Department of Hepatobiliary, Hospital of HeBei University, Baoding, China
| | - Wendu Duan
- Department of Hepatobiliary, Hospital of HeBei University, Baoding, China
| | - Yan Liu
- Department of Hepatobiliary, Hospital of HeBei University, Baoding, China
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14
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Mirza-Aghazadeh-Attari M, Reiter RJ, Rikhtegar R, Jalili J, Hajalioghli P, Mihanfar A, Majidinia M, Yousefi B. Melatonin: An atypical hormone with major functions in the regulation of angiogenesis. IUBMB Life 2020; 72:1560-1584. [PMID: 32329956 DOI: 10.1002/iub.2287] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2020] [Revised: 03/10/2020] [Accepted: 03/26/2020] [Indexed: 02/06/2023]
Abstract
Melatonin (N-acetyl-5-methoxytryptamine), a pleotropic molecule with a wide distribution, has received considerable attention in recent years, mostly because of its various major effects on tissues or cells since it has both receptor-dependent and receptor-independent actions over a wide range of concentrations. These biological and physiological functions of melatonin include regulation of circadian rhythms by modulating the expression of core oscillator genes, scavenging the reactive oxygen species and reactive nitrogen species, modulating the immune system and inflammatory response, and exerting cytoprotective and antiapoptotic effects. Given the multiple critical roles of melatonin, dysregulation of its production or any disruption in signaling through its receptors may have contributed in the development of a wide range of disorders including type 2 diabetes, aging, immune-mediated diseases, hypertension, and cancer. Herein, we focus on the modulatory effects of melatonin on angiogenesis and its implications as a therapeutic strategy in cancer and related diseases.
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Affiliation(s)
- Mohammad Mirza-Aghazadeh-Attari
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran.,Aging Research Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Russel J Reiter
- Department of Cellular and Structural Biology, University of Texas Health Science Center, San Antonio, Texas, USA
| | - Reza Rikhtegar
- Aging Research Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Javad Jalili
- Radiology Department, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Parisa Hajalioghli
- Radiology Department, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ainaz Mihanfar
- Solid Tumor Research Center, Urmia University of Medical Sciences, Urmia, Iran
| | - Maryam Majidinia
- Solid Tumor Research Center, Urmia University of Medical Sciences, Urmia, Iran
| | - Bahman Yousefi
- Molecular Medicine Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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15
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Dana PM, Sadoughi F, Mobini M, Shafabakhsh R, Chaichian S, Moazzami B, Chamani M, Asemi Z. Molecular and Biological Functions of Melatonin in Endometrial Cancer. Curr Drug Targets 2020; 21:519-526. [DOI: 10.2174/1389450120666190927123746] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 09/01/2019] [Accepted: 09/12/2019] [Indexed: 12/15/2022]
Abstract
Endometrial cancer is the fifth leading cancer among women. This rate is higher in developed countries and its incidence is increasing worldwide. Diabetes mellitus, obesity, hypertension and arteriosclerosis are major risk factors for endometrial cancer. Melatonin is a hormone synthesized in the pineal and extra-pineal organs such as the digestive tract, bone marrow, retina and more. Evidence shows the potential effects of melatonin in endometrial cancer inhibition. Therefore, the focus of this paper is to review this outstanding evidence and to summarize the molecular and biological mechanisms of melatonin for the inhibition of endometrial cancer.
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Affiliation(s)
- Parisa Maleki Dana
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Iran
| | - Fatemeh Sadoughi
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Iran
| | - Moein Mobini
- Faculty of Kinesiology, University of Calgary, Calgary, AB, Canada
| | - Rana Shafabakhsh
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Iran
| | - Shala Chaichian
- Pars Advanced and Minimally Invasive Medical Manners Research Center, Pars Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Bahram Moazzami
- Pars Advanced and Minimally Invasive Medical Manners Research Center, Pars Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Maryam Chamani
- Department of Gynecology and Obstetrics, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Zatollah Asemi
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Iran
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16
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Morcillo-Parra MÁ, González B, Beltran G, Mas A, Torija MJ. Melatonin and glycolytic protein interactions are related to yeast fermentative capacity. Food Microbiol 2020; 87:103398. [PMID: 31948610 DOI: 10.1016/j.fm.2019.103398] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 10/23/2019] [Accepted: 12/02/2019] [Indexed: 12/13/2022]
Abstract
Melatonin is an indole amine that interacts with some proteins in mammals, such as calreticulin, calmodulin or sirtuins. In yeast, melatonin is synthetized and interacts with glycolytic proteins during alcoholic fermentation in Saccharomyces cerevisiae. Due to its importance as an antioxidant molecule in both Saccharomyces and non-Saccharomyces yeasts, the aim of this study was to determine the intracellular and extracellular synthesis profiles of melatonin in four non-Saccharomyces strains (Torulaspora delbrueckii, Hanseniaspora uvarum, Starmeralla bacillaris and Metschnikowia pulcherrima) and to confirm whether glycolytic enzymes can also interact with this molecule in non-conventional yeast cells. Melatonin from fermentation samples was analyzed by liquid chromatography mass spectrometry, and proteins bound to melatonin were immunopurified by melatonin-IgG-Dynabeads. Melatonin was produced in a similar pattern in all non-Saccharomyces yeast, with M. pulcherrima and S. bacillaris being the highest producers. However, melatonin only bound to proteins in two non-conventional yeasts, S. bacillaris and T. delbrueckii, which specifically had higher fermentative capacities. Sequence analysis showed that most proteins shared high levels of homology with glycolytic enzymes, but an RNA-binding protein, the elongation alpha factor, which is related to mitochondria, was also identified. This study reports for the first time the interaction of melatonin with proteins inside non-Saccharomyces yeast cells. These results reinforce the possible role of melatonin as a signal molecule, likely related to fermentation metabolism and provide a new perspective for understanding its role in yeast.
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Affiliation(s)
- María Ángeles Morcillo-Parra
- Department de Bioquímica i Biotecnologia, Universitat Rovira i Virgili, Marcel·lí Domingo, 1, 43007, Tarragona, Spain
| | - Beatriz González
- Department de Bioquímica i Biotecnologia, Universitat Rovira i Virgili, Marcel·lí Domingo, 1, 43007, Tarragona, Spain
| | - Gemma Beltran
- Department de Bioquímica i Biotecnologia, Universitat Rovira i Virgili, Marcel·lí Domingo, 1, 43007, Tarragona, Spain
| | - Albert Mas
- Department de Bioquímica i Biotecnologia, Universitat Rovira i Virgili, Marcel·lí Domingo, 1, 43007, Tarragona, Spain
| | - María-Jesús Torija
- Department de Bioquímica i Biotecnologia, Universitat Rovira i Virgili, Marcel·lí Domingo, 1, 43007, Tarragona, Spain.
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17
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Morcillo-Parra MÁ, Valera MJ, Beltran G, Mas A, Torija MJ. Glycolytic Proteins Interact With Intracellular Melatonin in Saccharomyces cerevisiae. Front Microbiol 2019; 10:2424. [PMID: 31708896 PMCID: PMC6821644 DOI: 10.3389/fmicb.2019.02424] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 10/08/2019] [Indexed: 02/03/2023] Open
Abstract
Melatonin is a bioactive compound that is present in fermented beverages and synthesized by yeast during alcoholic fermentation. Many studies have shown that melatonin interacts with some mammalian proteins, such as sirtuins or orphan receptor family proteins. The aim of this study was to determine the intracellular synthesis profile of melatonin in Saccharomyces cerevisiae and to identify the proteins that may interact with this molecule in yeast cells. Melatonin from fermentation samples was analyzed by liquid chromatography mass spectrometry, and proteins bound to melatonin were immunopurified by melatonin-IgG-Dynabeads. Melatonin was produced intracellularly in the lag phase of yeast growth and was exported to the extracellular media during the stationary phase. During this period, melatonin was bound to six proteins with molecular weights from 55 to 35 kDa. Sequence analysis showed that most proteins shared high levels of homology with glycolytic enzymes. An RNA-binding protein was also identified, the elongation alpha factor, which is related to mitochondria. This study reports for the first time the interaction of melatonin and proteins inside yeast cells. These results highlight the possible role of melatonin as a signal molecule and provide a new perspective for understanding its role in yeast.
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Affiliation(s)
| | - María José Valera
- Department de Bioquímica i Biotecnologia, Facultad d'Enologia, Universitat Rovira i Virgili, Tarragona, Spain
| | - Gemma Beltran
- Department de Bioquímica i Biotecnologia, Facultad d'Enologia, Universitat Rovira i Virgili, Tarragona, Spain
| | - Albert Mas
- Department de Bioquímica i Biotecnologia, Facultad d'Enologia, Universitat Rovira i Virgili, Tarragona, Spain
| | - María-Jesús Torija
- Department de Bioquímica i Biotecnologia, Facultad d'Enologia, Universitat Rovira i Virgili, Tarragona, Spain
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18
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Ding S, Lin N, Sheng X, Zhao Y, Su Y, Xu L, Tong R, Yan Y, Fu Y, He J, Gao Y, Yuan A, Ye L, Reiter RJ, Pu J. Melatonin stabilizes rupture-prone vulnerable plaques via regulating macrophage polarization in a nuclear circadian receptor RORα-dependent manner. J Pineal Res 2019; 67:e12581. [PMID: 31009101 DOI: 10.1111/jpi.12581] [Citation(s) in RCA: 82] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Revised: 03/18/2019] [Accepted: 04/09/2019] [Indexed: 02/06/2023]
Abstract
Rupture of vulnerable plaques is the main trigger of acute cardio-cerebral vascular events, but mechanisms responsible for transforming a stable atherosclerotic into a vulnerable plaque remain largely unknown. Melatonin, an indoleamine hormone secreted by the pineal gland, plays pleiotropic roles in the cardiovascular system; however, the effect of melatonin on vulnerable plaque rupture and its underlying mechanisms remains unknown. Here, we generated a rupture-prone vulnerable carotid plaque model induced by endogenous renovascular hypertension combined with low shear stress in hypercholesterolemic ApoE-/- mice. Melatonin (10 mg/kg/d by oral administration for 9 weeks) significantly prevented vulnerable plaque rupture, with lower incidence of intraplaque hemorrhage (42.9% vs. 9.5%, P = 0.014) and of spontaneous plaque rupture with intraluminal thrombus formation (38.1% vs. 9.5%, P = 0.029). Mechanistic studies indicated that melatonin ameliorated intraplaque inflammation by suppressing the differentiation of intraplaque macrophages toward the proinflammatory M1 phenotype, and circadian nuclear receptor retinoid acid receptor-related orphan receptor-α (RORα) mediated melatonin-exerted vasoprotection against vulnerable plaque instability and intraplaque macrophage polarization. Further analysis in human monocyte-derived macrophages confirmed the role of melatonin in regulating macrophage polarization by regulating the AMPKα-STATs pathway in a RORα-dependent manner. In summary, our data provided the first evidence that melatonin-RORα axis acts as a novel endogenous protective signaling pathway in the vasculature, regulates intraplaque inflammation, and stabilizes rupture-prone vulnerable plaques.
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MESH Headings
- Animals
- Atherosclerosis/drug therapy
- Atherosclerosis/genetics
- Atherosclerosis/metabolism
- Atherosclerosis/pathology
- Humans
- Macrophages/metabolism
- Macrophages/pathology
- Male
- Melatonin/pharmacology
- Mice
- Mice, Knockout, ApoE
- Nuclear Receptor Subfamily 1, Group F, Member 1/genetics
- Nuclear Receptor Subfamily 1, Group F, Member 1/metabolism
- Plaque, Atherosclerotic/drug therapy
- Plaque, Atherosclerotic/genetics
- Plaque, Atherosclerotic/metabolism
- Plaque, Atherosclerotic/pathology
- Signal Transduction/drug effects
- Signal Transduction/genetics
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Affiliation(s)
- Song Ding
- State Key Laboratory for Oncogenes and Related Genes, Division of Cardiology, Renji Hospital, School of Medicine, Shanghai Cancer Institute, Shanghai Jiaotong University, Shanghai, China
| | - Nan Lin
- State Key Laboratory for Oncogenes and Related Genes, Division of Cardiology, Renji Hospital, School of Medicine, Shanghai Cancer Institute, Shanghai Jiaotong University, Shanghai, China
| | - Xincheng Sheng
- State Key Laboratory for Oncogenes and Related Genes, Division of Cardiology, Renji Hospital, School of Medicine, Shanghai Cancer Institute, Shanghai Jiaotong University, Shanghai, China
| | - Yichao Zhao
- State Key Laboratory for Oncogenes and Related Genes, Division of Cardiology, Renji Hospital, School of Medicine, Shanghai Cancer Institute, Shanghai Jiaotong University, Shanghai, China
| | - Yuanyuan Su
- State Key Laboratory for Oncogenes and Related Genes, Division of Cardiology, Renji Hospital, School of Medicine, Shanghai Cancer Institute, Shanghai Jiaotong University, Shanghai, China
| | - Longwei Xu
- State Key Laboratory for Oncogenes and Related Genes, Division of Cardiology, Renji Hospital, School of Medicine, Shanghai Cancer Institute, Shanghai Jiaotong University, Shanghai, China
| | - Renyang Tong
- State Key Laboratory for Oncogenes and Related Genes, Division of Cardiology, Renji Hospital, School of Medicine, Shanghai Cancer Institute, Shanghai Jiaotong University, Shanghai, China
| | - Yang Yan
- State Key Laboratory for Oncogenes and Related Genes, Division of Cardiology, Renji Hospital, School of Medicine, Shanghai Cancer Institute, Shanghai Jiaotong University, Shanghai, China
| | - Yanan Fu
- State Key Laboratory for Oncogenes and Related Genes, Division of Cardiology, Renji Hospital, School of Medicine, Shanghai Cancer Institute, Shanghai Jiaotong University, Shanghai, China
| | - Jie He
- State Key Laboratory for Oncogenes and Related Genes, Division of Cardiology, Renji Hospital, School of Medicine, Shanghai Cancer Institute, Shanghai Jiaotong University, Shanghai, China
| | - Yu Gao
- State Key Laboratory for Oncogenes and Related Genes, Division of Cardiology, Renji Hospital, School of Medicine, Shanghai Cancer Institute, Shanghai Jiaotong University, Shanghai, China
| | - Ancai Yuan
- State Key Laboratory for Oncogenes and Related Genes, Division of Cardiology, Renji Hospital, School of Medicine, Shanghai Cancer Institute, Shanghai Jiaotong University, Shanghai, China
| | - Lei Ye
- National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore City, Singapore
| | - Russel J Reiter
- Department of Cellular and Structural Biology, The University of Texas Health Science Center, San Antonio, Texas
| | - Jun Pu
- State Key Laboratory for Oncogenes and Related Genes, Division of Cardiology, Renji Hospital, School of Medicine, Shanghai Cancer Institute, Shanghai Jiaotong University, Shanghai, China
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19
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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: 328] [Impact Index Per Article: 54.7] [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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20
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Hardeland R. Melatonin and inflammation-Story of a double-edged blade. J Pineal Res 2018; 65:e12525. [PMID: 30242884 DOI: 10.1111/jpi.12525] [Citation(s) in RCA: 272] [Impact Index Per Article: 45.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2018] [Revised: 09/10/2018] [Accepted: 09/14/2018] [Indexed: 12/13/2022]
Abstract
Melatonin is an immune modulator that displays both pro- and anti-inflammatory properties. Proinflammatory actions, which are well documented by many studies in isolated cells or leukocyte-derived cell lines, can be assumed to enhance the resistance against pathogens. However, they can be detrimental in autoimmune diseases. Anti-inflammatory actions are of particular medicinal interest, because they are observed in high-grade inflammation such as sepsis, ischemia/reperfusion, and brain injury, and also in low-grade inflammation during aging and in neurodegenerative diseases. The mechanisms contributing to anti-inflammatory effects are manifold and comprise various pathways of secondary signaling. These include numerous antioxidant effects, downregulation of inducible and inhibition of neuronal NO synthases, downregulation of cyclooxygenase-2, inhibition of high-mobility group box-1 signaling and toll-like receptor-4 activation, prevention of inflammasome NLRP3 activation, inhibition of NF-κB activation and upregulation of nuclear factor erythroid 2-related factor 2 (Nrf2). These effects are also reflected by downregulation of proinflammatory and upregulation of anti-inflammatory cytokines. Proinflammatory actions of amyloid-β peptides are reduced by enhancing α-secretase and inhibition of β- and γ-secretases. A particular role in melatonin's actions seems to be associated with the upregulation of sirtuin-1 (SIRT1), which shares various effects known from melatonin and additionally interferes with the signaling by the mechanistic target of rapamycin (mTOR) and Notch, and reduces the expression of the proinflammatory lncRNA-CCL2. The conclusion on a partial mediation by SIRT1 is supported by repeatedly observed inhibitions of melatonin effects by sirtuin inhibitors or knockdown.
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Affiliation(s)
- Rüdiger Hardeland
- Johann Friedrich Blumenbach Institute of Zoology and Anthropology, University of Göttingen, Göttingen, Germany
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21
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Liu Z, Gan L, Zhang T, Ren Q, Sun C. Melatonin alleviates adipose inflammation through elevating α-ketoglutarate and diverting adipose-derived exosomes to macrophages in mice. J Pineal Res 2018; 64. [PMID: 29149454 DOI: 10.1111/jpi.12455] [Citation(s) in RCA: 120] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Accepted: 11/06/2017] [Indexed: 12/21/2022]
Abstract
Obesity is associated with macrophage infiltration and metabolic inflammation, both of which promote metabolic disease progression. Melatonin is reported to possess anti-inflammatory properties by inhibiting inflammatory response of adipocytes and macrophages activation. However, the effects of melatonin on the communication between adipocytes and macrophages during adipose inflammation remain elusive. Here, we demonstrated melatonin alleviated inflammation and elevated α-ketoglutarate (αKG) level in adipose tissue of obese mice. Mitochondrial isocitrate dehydrogenase 2 (Idh2) mRNA level was also elevated by melatonin in adipocytes leading to increase αKG level. Further analysis revealed αKG was the target for melatonin inhibition of adipose inflammation. Moreover, sirtuin 1 (Sirt1) physically interacted with IDH2 and formed a complex to increase the circadian amplitude of Idh2 and αKG content in melatonin-inhibited adipose inflammation. Notably, melatonin promoted exosomes secretion from adipocyte and increased adipose-derived exosomal αKG level. Our results also confirmed that melatonin alleviated adipocyte inflammation and increased ratio of M2 to M1 macrophages by transporting of exosomal αKG to macrophages and promoting TET-mediated DNA demethylation. Furthermore, exosomal αKG attenuated signal transducers and activators of transduction-3 (STAT3)/NF-κB signal by its receptor oxoglutarate receptor 1 (OXGR1) in adipocytes. Melatonin also attenuated adipose inflammation and deceased macrophage number in chronic jet-lag mice. In summary, our results demonstrate melatonin alleviates metabolic inflammation by increasing cellular and exosomal αKG level in adipose tissue. Our data reveal a novel function of melatonin on adipocytes and macrophages communication, suggesting a new potential therapy for melatonin to prevent and treat obesity caused systemic inflammatory disease.
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Affiliation(s)
- Zhenjiang Liu
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Lu Gan
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Tiantian Zhang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Qian Ren
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Chao Sun
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
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22
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Lo Sardo F, Muti P, Blandino G, Strano S. Melatonin and Hippo Pathway: Is There Existing Cross-Talk? Int J Mol Sci 2017; 18:ijms18091913. [PMID: 28878191 PMCID: PMC5618562 DOI: 10.3390/ijms18091913] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Revised: 08/30/2017] [Accepted: 09/01/2017] [Indexed: 12/16/2022] Open
Abstract
Melatonin is an indolic hormone that regulates a plethora of functions ranging from the regulation of circadian rhythms and antioxidant properties to the induction and maintenance of tumor suppressor pathways. It binds to specific receptors as well as to some cytosolic proteins, leading to several cellular signaling cascades. Recently, the involvement of melatonin in cancer insurgence and progression has clearly been demonstrated. In this review, we will first describe the structure and functions of melatonin and its receptors, and then discuss both molecular and epidemiological evidence on melatonin anticancer effects. Finally, we will shed light on potential cross-talk between melatonin signaling and the Hippo signaling pathway, along with the possible implications for cancer therapy.
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Affiliation(s)
- Federica Lo Sardo
- Oncogenomic and Epigenetic Unit, Molecular Chemoprevention Group, Department of Research, Diagnosis and Innovative Technologies, Translational Research Area, Regina Elena National Cancer Institute, via Elio Chianesi 53, 00144 Rome, Italy.
| | - Paola Muti
- Department of Oncology, Juravinski Cancer Center, McMaster University, Hamilton, ON L8S 4L8, Canada.
| | - Giovanni Blandino
- Oncogenomic and Epigenetic Unit, Molecular Chemoprevention Group, Department of Research, Diagnosis and Innovative Technologies, Translational Research Area, Regina Elena National Cancer Institute, via Elio Chianesi 53, 00144 Rome, Italy.
| | - Sabrina Strano
- Oncogenomic and Epigenetic Unit, Molecular Chemoprevention Group, Department of Research, Diagnosis and Innovative Technologies, Translational Research Area, Regina Elena National Cancer Institute, via Elio Chianesi 53, 00144 Rome, Italy.
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23
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Crooke A, Huete-Toral F, Colligris B, Pintor J. The role and therapeutic potential of melatonin in age-related ocular diseases. J Pineal Res 2017; 63. [PMID: 28658514 DOI: 10.1111/jpi.12430] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Accepted: 06/23/2017] [Indexed: 12/20/2022]
Abstract
The eye is continuously exposed to solar UV radiation and pollutants, making it prone to oxidative attacks. In fact, oxidative damage is a major cause of age-related ocular diseases including cataract, glaucoma, age-related macular degeneration, and diabetic retinopathy. As the nature of lens cells, trabecular meshwork cells, retinal ganglion cells, retinal pigment epithelial cells, and photoreceptors is postmitotic, autophagy plays a critical role in their cellular homeostasis. In age-related ocular diseases, this process is impaired, and thus, oxidative damage becomes irreversible. Other conditions such as low-grade chronic inflammation and angiogenesis also contribute to the development of retinal diseases (glaucoma, age-related macular degeneration and diabetic retinopathy). As melatonin is known to have remarkable qualities such as antioxidant/antinitridergic, mitochondrial protector, autophagy modulator, anti-inflammatory, and anti-angiogenic, it can represent a powerful tool to counteract all these diseases. The present review analyzes the role and therapeutic potential of melatonin in age-related ocular diseases, focusing on nitro-oxidative stress, autophagy, inflammation, and angiogenesis mechanisms.
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Affiliation(s)
- Almudena Crooke
- Department of Biochemistry and Molecular Biology IV, Group Ocupharm, Faculty of Optics and Optometry, Universidad Complutense de Madrid, Madrid, Spain
| | - Fernando Huete-Toral
- Department of Biochemistry and Molecular Biology IV, Group Ocupharm, Faculty of Optics and Optometry, Universidad Complutense de Madrid, Madrid, Spain
| | - Basilio Colligris
- Department of Biochemistry and Molecular Biology IV, Group Ocupharm, Faculty of Optics and Optometry, Universidad Complutense de Madrid, Madrid, Spain
| | - Jesús Pintor
- Department of Biochemistry and Molecular Biology IV, Group Ocupharm, Faculty of Optics and Optometry, Universidad Complutense de Madrid, Madrid, Spain
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24
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Majidinia M, Sadeghpour A, Mehrzadi S, Reiter RJ, Khatami N, Yousefi B. Melatonin: A pleiotropic molecule that modulates DNA damage response and repair pathways. J Pineal Res 2017; 63. [PMID: 28439991 DOI: 10.1111/jpi.12416] [Citation(s) in RCA: 112] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Accepted: 04/20/2017] [Indexed: 02/06/2023]
Abstract
DNA repair is responsible for maintaining the integrity of the genome. Perturbations in the DNA repair pathways have been identified in several human cancers. Thus, compounds targeting DNA damage response (DDR) hold great promise in cancer therapy. A great deal of effort, in pursuit of new anticancer drugs, has been devoted to understanding the basic mechanisms and functions of the cellular DNA repair machinery. Melatonin, a widely produced indoleamine in all organisms, is associated with a reduced risk of cancer and has multiple regulatory roles on the different aspects of the DDR and DNA repair. Herein, we have mainly discussed how defective components in different DNA repair machineries, including homologous recombination (HR), nonhomologous end-joining (NHEJ), base excision repair (BER), nucleotide excision repair (NER), and finally DNA mismatch repair (MMR), can contribute to the risk of cancer. Melatonin biosynthesis, mode of action, and antioxidant effects are reviewed along with the means by which the indoleamine regulates DDR at the transduction, mediation, and functional levels. Finally, we summarize recent studies that illustrate how melatonin can be combined with DNA-damaging agents to improve their efficacy in cancer therapy.
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Affiliation(s)
- Maryam Majidinia
- Solid Tumor Research Center, Urmia University of Medical Sciences, Urmia, Iran
| | - Alireza Sadeghpour
- Department of Orthopedic Surgery, School of Medicine and Shohada Educational Hospital, Tabriz University of Medical Sciences, Tabriz, Iran
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Saeed Mehrzadi
- Health Promotion Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Russel J Reiter
- Department of Cellular and Structural Biology, University of Texas Health Science Center, San Antonio, TX, USA
| | - Nasrin Khatami
- Institute for Stem Cell and Regenerative Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
- Students Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Bahman Yousefi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Molecular Targeting Therapy Research Group, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Clinical Biochemistry and Laboratory Medicine, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
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25
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Li H, Zhou L, Dai J. Retinoic acid receptor-related orphan receptor RORα regulates differentiation and survival of keratinocytes during hypoxia. J Cell Physiol 2017; 233:641-650. [PMID: 28332183 DOI: 10.1002/jcp.25924] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2017] [Accepted: 03/21/2017] [Indexed: 01/13/2023]
Abstract
Low O2 pressures present in the microenvironment of epidermis control keratinocyte differentiation and epidermal barrier function through hypoxia inducible factors (HIFs) dependent gene expression. This study focuses on investigating relations of the retinoic acid receptor-related orphan receptor alpha (RORα) to HIF-1α in keratinocytes under hypoxic conditions. The expression level of RORα is significantly elevated under hypoxia in both human and murine keratinocytes. Gene silencing of RORA attenuates hypoxia-stimulated expression of genes related to late differentiation and epidermal barrier function, and leads to an enhanced apoptotic response. While the hypoxic induction of RORα is dependent on HIF-1α, RORα is in turn critical for nuclear accumulation of HIF-1α and activation of HIF transcriptional activity. These results collectively suggest that RORα functions as an important mediator of HIF-1α activities in regulating keratinocyte differentiation/survival and epidermal barrier function during the oxygen sensing stage.
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Affiliation(s)
- Hongyu Li
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, P. R. China
| | - Longjian Zhou
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, P. R. China
| | - Jun Dai
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, P. R. China.,Cutaneous Biology Research Center, Massachusetts General Hospital, Charlestown, Massachusetts.,Division of Pharmaceutical Sciences, School of Pharmacy, University of Wisconsin, Madison, Wisconsin
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26
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Identification of potential target genes of ROR-alpha in THP1 and HUVEC cell lines. Exp Cell Res 2017; 353:6-15. [PMID: 28238834 DOI: 10.1016/j.yexcr.2017.02.028] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2016] [Revised: 01/31/2017] [Accepted: 02/19/2017] [Indexed: 02/04/2023]
Abstract
ROR-alpha is a nuclear receptor, activity of which can be modulated by natural or synthetic ligands. Due to its possible involvement in, and potential therapeutic target for atherosclerosis, we aimed to identify ROR-alpha target genes in monocytic and endothelial cell lines. We performed chromatin immunoprecipitation (ChIP) followed by tiling array (ChIP-on-chip) for ROR-alpha in monocytic cell line THP1 and endothelial cell line HUVEC. Following bioinformatic analysis of the array data, we tested four candidate genes in terms of dependence of their expression level on ligand-mediated ROR-alpha activity, and two of them in terms of promoter occupancy by ROR-alpha. Bioinformatic analyses of ChIP-on-chip data suggested that ROR-alpha binds to genomic regions near the transcription start site (TSS) of more than 3000 genes in THP1 and HUVEC. Potential ROR-alpha target genes in both cell types seem to be involved mainly in membrane receptor activity, signal transduction and ion transport. While SPP1 and IKBKA were shown to be direct target genes of ROR-alpha in THP1 monocytes, inflammation related gene HMOX1 and heat shock protein gene HSPA8 were shown to be potential target genes of ROR-alpha. Our results suggest that ROR-alpha may regulate signaling receptor activity, and transmembrane transport activity through its potential target genes. ROR-alpha seems also to play role in cellular sensitivity to environmental substances like arsenite and chloroprene. Although, the expression analyses have shown that synthetic ROR-alpha ligands can modulate some of potential ROR-alpha target genes, functional significance of ligand-dependent modulation of gene expression needs to be confirmed with further analyses.
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27
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Eberl G. RORγt, a multitask nuclear receptor at mucosal surfaces. Mucosal Immunol 2017; 10:27-34. [PMID: 27706126 DOI: 10.1038/mi.2016.86] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Accepted: 08/30/2016] [Indexed: 02/07/2023]
Abstract
RORγt is a nuclear hormone receptor that has followed an exponential success carrier. Its modest origins as an orphan receptor cloned from human pancreas blossomed within 15 years into a critical regulator of anti-microbial immunity and a major target in the fight against inflammatory pathologies. Here, I review its role as a transcription factor required for the generation of type 3 lymphoid cells, which induce the development of lymphoid tissues, provide resistance of epithelial stem cells to injury, maintain homeostasis with the symbiotic microbiota, orchestrate defense against extracellular microbes, and regulate allergic responses. RORγt is also an intriguing molecule that is regulated by the circadian rhythm and includes cholesterol metabolites as ligands. RORγt therefore links anti-microbial immunity with circadian rhythms and steroids, the logic of which remains to be understood.
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Affiliation(s)
- G Eberl
- Institut Pasteur, Microenvironment & Immunity Unit, Department of Immunology, Paris, France.,INSERM U1224, Paris, France
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28
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Wang RX, Liu H, Xu L, Zhang H, Zhou RX. Melatonin downregulates nuclear receptor RZR/RORγ expression causing growth-inhibitory and anti-angiogenesis activity in human gastric cancer cells in vitro and in vivo. Oncol Lett 2016; 12:897-903. [PMID: 27446366 PMCID: PMC4950661 DOI: 10.3892/ol.2016.4729] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2015] [Accepted: 04/01/2016] [Indexed: 12/27/2022] Open
Abstract
An adequate supply of oxygen and nutrients, derived from the formation of novel blood vessels, is critical for the growth and expansion of tumor cells. It has been demonstrated that melatonin (MLT) exhibits marked in vitro and in vivo oncostatic activities. The primary purpose of the present study was to evaluate the in vitro and in vivo antitumor activity of MLT on the growth and angiogenesis of gastric cancer cells, and explore the underlying molecular mechanisms. The present results revealed that MLT inhibited the growth of gastric cancer SGC-7901 cells in a dose- and time-dependent manner. In addition, the present study demonstrated that low concentrations (0.01, 0.1 and 1 mM) of MLT had no clear effect on vascular endothelial growth factor (VEGF) secretion, whereas a high concentration (3 mM) of MLT suppressed VEGF secretion in SGC-7901 cells. Notably, administration of MLT caused suppression of gastric cancer growth and blockade of tumor angiogenesis in tumor-bearing nude mice. Furthermore, MLT treatment reduced the expression of the MLT nuclear receptor RZR/RORγ, SUMO-specific protease 1, hypoxia-inducible factor-1α and VEGF at transcriptional and translational levels within gastric cancer cells during tumorigenesis. In conclusion, MLT nuclear receptor RZR/RORγ may be of great importance in the MLT mediated anti-angiogenesis and growth-inhibitory effect in gastric cancer cells. Since RZR/RORγ is overexpressed in multiple human cancers, MLT may be a promising agent for the treatment of cancers.
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Affiliation(s)
- Ri-Xiong Wang
- Department of Chemotherapy, The First Affiliated Hospital, Fujian Medical University, Fuzhou, Fujian 350108, P.R. China
| | - Hui Liu
- Department of Human Anatomy, Histology and Embryology, Fujian Medical University, Fuzhou, Fujian 350108, P.R. China
- Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, Fujian 350108, P.R. China
- Neurobiology Research Center, Fujian Medical University, Fuzhou, Fujian 350108, P.R. China
- School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian 350108, P.R. China
| | - Li Xu
- Department of Human Anatomy, Histology and Embryology, Fujian Medical University, Fuzhou, Fujian 350108, P.R. China
- Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, Fujian 350108, P.R. China
- Neurobiology Research Center, Fujian Medical University, Fuzhou, Fujian 350108, P.R. China
- School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian 350108, P.R. China
| | - Hui Zhang
- Department of Human Anatomy, Histology and Embryology, Fujian Medical University, Fuzhou, Fujian 350108, P.R. China
- Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, Fujian 350108, P.R. China
- Neurobiology Research Center, Fujian Medical University, Fuzhou, Fujian 350108, P.R. China
- School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian 350108, P.R. China
| | - Rui-Xiang Zhou
- Department of Human Anatomy, Histology and Embryology, Fujian Medical University, Fuzhou, Fujian 350108, P.R. China
- Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, Fujian 350108, P.R. China
- Neurobiology Research Center, Fujian Medical University, Fuzhou, Fujian 350108, P.R. China
- School of Basic Medical Sciences, Fujian Medical University, Fuzhou, Fujian 350108, P.R. China
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29
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Volt H, García JA, Doerrier C, Díaz-Casado ME, Guerra-Librero A, López LC, Escames G, Tresguerres JA, Acuña-Castroviejo D. Same molecule but different expression: aging and sepsis trigger NLRP3 inflammasome activation, a target of melatonin. J Pineal Res 2016; 60:193-205. [PMID: 26681113 DOI: 10.1111/jpi.12303] [Citation(s) in RCA: 114] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Accepted: 12/11/2015] [Indexed: 12/13/2022]
Abstract
The connection between the innate immune system, clock genes, and mitochondrial bioenergetics was analyzed during aging and sepsis in mouse heart. Our results suggest that the sole NF-κB activation does not explain the inflammatory process underlying aging; the former also triggers the NLRP3 inflammasome that enhances caspase-1-dependent maturation of IL-1β. In this way, aged mice enter into a vicious cycle as IL-1β further activates the NF-κB/NLRP3 inflammasome link. The origin of NF-κB activation was related to the age-dependent Bmal1/Clock/RORα/Rev-Erbα loop disruption, which lowers NAD(+) levels, reducing the SIRT1 deacetylase ability to inactivate NF-κB. Consequently, NF-κB binding to DNA increases, raising the formation of proinflammatory mediators and inducing mitochondrial impairment. The cycle is then closed with the subsequent NLRP3 inflammasome activation. This paired contribution of the innate immune pathways serves as a catalyst to magnify the response to sepsis in aged compared with young mice. Melatonin administration blunted the septic response, reducing inflammation and oxidative stress, and enhancing mitochondrial function at the levels of nonseptic aged mice, but it did not counteract the age-related inflammation. Together, our results suggest that, although with different strengths, chronoinflammaging constitutes the biochemical substrate of aging and sepsis, and identifies the NLRP3 inflammasome as a new molecular target for melatonin, providing a rationale for its use in NLRP3-dependent diseases.
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Affiliation(s)
- Huayqui Volt
- Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, Granada, Spain
- Departamento de Fisiología, Facultad de Medicina, Universidad de Granada, Granada, Spain
| | - José A García
- Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, Granada, Spain
- Departamento de Fisiología, Facultad de Medicina, Universidad de Granada, Granada, Spain
| | - Carolina Doerrier
- Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, Granada, Spain
- Departamento de Fisiología, Facultad de Medicina, Universidad de Granada, Granada, Spain
| | - María E Díaz-Casado
- Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, Granada, Spain
- Departamento de Fisiología, Facultad de Medicina, Universidad de Granada, Granada, Spain
| | - Ana Guerra-Librero
- Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, Granada, Spain
- Departamento de Fisiología, Facultad de Medicina, Universidad de Granada, Granada, Spain
| | - Luis C López
- Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, Granada, Spain
- Departamento de Fisiología, Facultad de Medicina, Universidad de Granada, Granada, Spain
| | - Germaine Escames
- Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, Granada, Spain
- Departamento de Fisiología, Facultad de Medicina, Universidad de Granada, Granada, Spain
| | - Jesús A Tresguerres
- Departamento de Fisiología, Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain
| | - Darío Acuña-Castroviejo
- Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, Granada, Spain
- Departamento de Fisiología, Facultad de Medicina, Universidad de Granada, Granada, Spain
- Unidad de Gestión Clínica de Laboratorios, Hospital Universitario San Cecilio, Granada, Spain
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30
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Legros C, Brasseur C, Delagrange P, Ducrot P, Nosjean O, Boutin JA. Alternative Radioligands for Investigating the Molecular Pharmacology of Melatonin Receptors. J Pharmacol Exp Ther 2016; 356:681-92. [PMID: 26759496 DOI: 10.1124/jpet.115.229989] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Accepted: 01/11/2016] [Indexed: 12/15/2022] Open
Abstract
Melatonin exerts a variety of physiologic activities that are mainly relayed through the melatonin receptors MT1 and MT2 Low expressions of these receptors in tissues have led to widespread experimental use of the agonist 2-[(125)I]-iodomelatonin as a substitute for melatonin. We describe three iodinated ligands: 2-(2-[(2-iodo-4,5-dimethoxyphenyl)methyl]-4,5-dimethoxy phenyl) (DIV880) and (2-iodo-N-2-[5-methoxy-2-(naphthalen-1-yl)-1H-pyrrolo[3,2-b]pyridine-3-yl])acetamide (S70254), which are specific ligands at MT2 receptors, and N-[2-(5-methoxy-1H-indol-3-yl)ethyl]iodoacetamide (SD6), an analog of 2-[(125)I]-iodomelatonin with slightly different characteristics. Here, we further characterized these new ligands with regards to their molecular pharmacology. We performed binding experiments, saturation assays, association/dissociation rate measurements, and autoradiography using sheep and rat tissues and recombinant cell lines. Our results showed that [(125)I]-S70254 is receptor, and can be used with both cells and tissue. This radioligand can be used in autoradiography. Similarly, DIV880, a partial agonist [43% of melatonin on guanosine 5'-3-O-(thio)triphosphate binding assay], selective for MT2, can be used as a tool to selectively describe the pharmacology of this receptor in tissue samples. The molecular pharmacology of both human melatonin receptors MT1 and MT2, using a series of 24 ligands at these receptors and the new radioligands, did not lead to noticeable variations in the profiles. For the first time, we described radiolabeled tools that are specific for one of the melatonin receptors (MT2). These tools are amenable to binding experiments and to autoradiography using sheep or rat tissues. These specific tools will permit better understanding of the role and implication in physiopathologic processes of the melatonin receptors.
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Affiliation(s)
- Céline Legros
- Pôle d'Expertise Biotechnologie, Chimie, Biologie (C.L., C.B., P.Du., O.N., J.A.B.), and Unité de Recherches et Découvertes en Neurosciences (P.De.), Institut de Recherches SERVIER, Croissy-sur-Seine, France
| | - Chantal Brasseur
- Pôle d'Expertise Biotechnologie, Chimie, Biologie (C.L., C.B., P.Du., O.N., J.A.B.), and Unité de Recherches et Découvertes en Neurosciences (P.De.), Institut de Recherches SERVIER, Croissy-sur-Seine, France
| | - Philippe Delagrange
- Pôle d'Expertise Biotechnologie, Chimie, Biologie (C.L., C.B., P.Du., O.N., J.A.B.), and Unité de Recherches et Découvertes en Neurosciences (P.De.), Institut de Recherches SERVIER, Croissy-sur-Seine, France
| | - Pierre Ducrot
- Pôle d'Expertise Biotechnologie, Chimie, Biologie (C.L., C.B., P.Du., O.N., J.A.B.), and Unité de Recherches et Découvertes en Neurosciences (P.De.), Institut de Recherches SERVIER, Croissy-sur-Seine, France
| | - Olivier Nosjean
- Pôle d'Expertise Biotechnologie, Chimie, Biologie (C.L., C.B., P.Du., O.N., J.A.B.), and Unité de Recherches et Découvertes en Neurosciences (P.De.), Institut de Recherches SERVIER, Croissy-sur-Seine, France
| | - Jean A Boutin
- Pôle d'Expertise Biotechnologie, Chimie, Biologie (C.L., C.B., P.Du., O.N., J.A.B.), and Unité de Recherches et Découvertes en Neurosciences (P.De.), Institut de Recherches SERVIER, Croissy-sur-Seine, France
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31
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Boutin JA. Quinone reductase 2 as a promising target of melatonin therapeutic actions. Expert Opin Ther Targets 2015; 20:303-17. [DOI: 10.1517/14728222.2016.1091882] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Jean A Boutin
- Institut de Recherches SERVIER, Pole d’Expertise Biotechnologie, Chimie & Biologie, 125, chemin de Ronde, 78290 Croissy-sur-Seine, France
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32
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Wang RX, Liu H, Xu L, Zhang H, Zhou RX. Involvement of nuclear receptor RZR/RORγ in melatonin-induced HIF-1α inactivation in SGC-7901 human gastric cancer cells. Oncol Rep 2015; 34:2541-6. [PMID: 26330273 DOI: 10.3892/or.2015.4238] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Accepted: 08/04/2015] [Indexed: 11/06/2022] Open
Abstract
The melatonin nuclear receptor is an orphan member of the nuclear receptor superfamily RZR/ROR, which consists of three subtypes (α, β and γ), suggesting that immunomodulatory and antitumor effects through the intracellular action of melatonin depend on nuclear signaling. In the present study, the biological mechanisms of melatonin were elucidated in association with the RZR/RORγ pathway in SGC-7901 human gastric cancer cells under hypoxia. Melatonin suppressed the activity of RZR/RORγ and SUMO-specific protease 1 (SENP1) signaling pathway, which is essential for stabilization of hypoxia‑inducible factor-1α (HIF‑1α) during hypoxia. Furthermore, melatonin inhibited the stability of HIF-1α in a time- and conce-ntration-dependent manner in SGC-7901 human gastric cancer cells during hypoxia. Consistently, siRNA-RZR/RORγ effectively blocked the expression of SENP1, HIF-1α and vascular endothelial growth factor (VEGF) production in SGC-7901 cells under hypoxia, suggesting the role of nuclear receptor RZR/RORγ in melatonin-inhibited HIF-1α and VEGF accumulation. Moreover, siRNA RZR/RORγ obviously antagonized to inhibit the action of the gastric cancer cell proliferation by melatonin. Our findings suggest that melatonin suppresses HIF-1α accumulation and VEGF generation via inhibition of melatonin nuclear receptor RZR/RORγ in SGC-7901 cells under hypoxia.
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Affiliation(s)
- Ri-Xiong Wang
- The Chemotherapy Department of The First Affiliated Hospital, Fujian Medical University, Fuzhou, Fujian, P.R. China
| | - Hui Liu
- Department of Human Anatomy, Histology and Embryology, Fujian Medical University, Fuzhou, Fujian, P.R. China
| | - Li Xu
- Department of Human Anatomy, Histology and Embryology, Fujian Medical University, Fuzhou, Fujian, P.R. China
| | - Hui Zhang
- Department of Human Anatomy, Histology and Embryology, Fujian Medical University, Fuzhou, Fujian, P.R. China
| | - Rui-Xiang Zhou
- Department of Human Anatomy, Histology and Embryology, Fujian Medical University, Fuzhou, Fujian, P.R. China
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Phytomelatonin: assisting plants to survive and thrive. Molecules 2015; 20:7396-437. [PMID: 25911967 PMCID: PMC6272735 DOI: 10.3390/molecules20047396] [Citation(s) in RCA: 238] [Impact Index Per Article: 26.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2015] [Revised: 03/27/2015] [Accepted: 03/27/2015] [Indexed: 12/15/2022] Open
Abstract
This review summarizes the advances that have been made in terms of the identified functions of melatonin in plants. Melatonin is an endogenously-produced molecule in all plant species that have been investigated. Its concentration in plant organs varies in different tissues, e.g., roots versus leaves, and with their developmental stage. As in animals, the pathway of melatonin synthesis in plants utilizes tryptophan as an essential precursor molecule. Melatonin synthesis is inducible in plants when they are exposed to abiotic stresses (extremes of temperature, toxins, increased soil salinity, drought, etc.) as well as to biotic stresses (fungal infection). Melatonin aids plants in terms of root growth, leaf morphology, chlorophyll preservation and fruit development. There is also evidence that exogenously-applied melatonin improves seed germination, plant growth and crop yield and its application to plant products post-harvest shows that melatonin advances fruit ripening and may improve food quality. Since melatonin was only discovered in plants two decades ago, there is still a great deal to learn about the functional significance of melatonin in plants. It is the hope of the authors that the current review will serve as a stimulus for scientists to join the endeavor of clarifying the function of this phylogenetically-ancient molecule in plants and particularly in reference to the mechanisms by which melatonin mediates its multiple actions.
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Melatonin enhances the in vitro maturation and developmental potential of bovine oocytes denuded of the cumulus oophorus. ZYGOTE 2014; 23:525-36. [PMID: 24869483 DOI: 10.1017/s0967199414000161] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
This study was designed to determine the effect of melatonin on the in vitro maturation (IVM) and developmental potential of bovine oocytes denuded of the cumulus oophorus (DOs). DOs were cultured alone (DOs) or with 10-9 M melatonin (DOs + MT), cumulus-oocyte complexes (COCs) were cultured without melatonin as the control. After IVM, meiosis II (MII) rates of DOs, and reactive oxygen species (ROS) levels, apoptotic rates and parthenogenetic blastocyst rates of MII oocytes were determined. The relative expression of ATP synthase F0 Subunit 6 and 8 (ATP6 and ATP8), bone morphogenetic protein 15 (BMP-15) and growth differentiation factor 9 (GDF-9) mRNA in MII oocytes and IFN-tau (IFN-τ), Na+/K+-ATPase, catenin-beta like 1 (CTNNBL1) and AQP3 mRNA in parthenogenetic blastocysts were quantified using real-time polymerase chain reaction (PCR). The results showed that: (1) melatonin significantly increased the MII rate of DOs (65.67 ± 3.59 % vs. 82.29 ± 3.92%; P < 0.05), decreased the ROS level (4.83 ± 0.42 counts per second (c.p.s) vs. 3.78 ± 0.29 c.p.s; P < 0.05) and apoptotic rate (36.99 ± 3.62 % vs. 21.88 ± 2.08 %; P < 0.05) and moderated the reduction of relative mRNA levels of ATP6, ATP8, BMP-15 and GDF-9 caused by oocyte denudation; (2) melatonin significantly increased the developmental rate (24.17 ± 3.54 % vs. 35.26 ± 4.87%; P < 0.05), and expression levels of IFN-τ, Na+/K+-ATPase, CTNNBL1 and AQP3 mRNA of blastocyst. These results indicated that melatonin significantly improved the IVM quality of DOs, leading to an increased parthenogenetic blastocyst formation rate and quality.
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Abstract
A growing body of evidence suggests that a subset of orphan nuclear receptors are amplified and prognostic for some human cancers. However, the specific roles of these orphan nuclear receptors in tumor progression and their utility as drug targets are not fully understood. In this review, we summarize recent progress in elucidating the direct and indirect involvement of orphan nuclear receptors in cancer as well as their therapeutic potential in a variety of human cancers. Furthermore, we contrast the role of orphan nuclear receptors in cancer with the known roles of estrogen receptor and androgen receptor in hormone-dependent cancers.
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Affiliation(s)
- Sung Hee Baek
- School of Biological Sciences, Creative Research Initiative Center for Chromatin Dynamics, Seoul National University, Seoul 151-742, South Korea;
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36
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Hardeland R. Melatonin and the theories of aging: a critical appraisal of melatonin's role in antiaging mechanisms. J Pineal Res 2013; 55:325-56. [PMID: 24112071 DOI: 10.1111/jpi.12090] [Citation(s) in RCA: 192] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2013] [Accepted: 08/23/2013] [Indexed: 02/06/2023]
Abstract
The classic theories of aging such as the free radical theory, including its mitochondria-related versions, have largely focused on a few specific processes of senescence. Meanwhile, numerous interconnections have become apparent between age-dependent changes previously thought to proceed more or less independently. Increased damage by free radicals is not only linked to impairments of mitochondrial function, but also to inflammaging as it occurs during immune remodeling and by release of proinflammatory cytokines from mitotically arrested, DNA-damaged cells that exhibit the senescence-associated secretory phenotype (SASP). Among other effects, SASP can cause mutations in stem cells that reduce the capacity for tissue regeneration or, in worst case, lead to cancer stem cells. Oxidative stress has also been shown to promote telomere attrition. Moreover, damage by free radicals is connected to impaired circadian rhythmicity. Another nexus exists between cellular oscillators and metabolic sensing, in particular to the aging-suppressor SIRT1, which acts as an accessory clock protein. Melatonin, being a highly pleiotropic regulator molecule, interacts directly or indirectly with all the processes mentioned. These influences are critically reviewed, with emphasis on data from aged organisms and senescence-accelerated animals. The sometimes-controversial findings obtained either in a nongerontological context or in comparisons of tumor with nontumor cells are discussed in light of evidence obtained in senescent organisms. Although, in mammals, lifetime extension by melatonin has been rarely documented in a fully conclusive way, a support of healthy aging has been observed in rodents and is highly likely in humans.
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Affiliation(s)
- Rüdiger Hardeland
- Johann Friedrich Blumenbach Institute of Zoology and Anthropology, University of Göttingen, Göttingen, Germany
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Abstract
The first observation on the relationship between the pineal gland and the immune system was done by the author of this paper in the late sixties and early seventies of the last century. After neonatal pinealectomy the thymus has been destroyed and wasting disease developed. Since that time a flood of experiments justified the observation and pointed to the prominent role of pineal in the regulation of the immune system. Melatonin, the hormone of the pineal gland stimulates immune processes acting to the immune cells' cytokine production, the haemopoiesis, and immune cell-target cell interactions. Melatonin receptors have been demonstrated and their localization and function were justified. Melatonin production by and melatonin receptors on (and in) the immune cells was proved. Melatonin agonists have been synthesized and the use of melatonin as adjuvant in the therapy of diseases connected to the immune system (cancers included) has been started. The paper summarizes the most important studies and discusses the interrelations of the data. The discussion points to the possibility of packed transport of the pineal hormone by the immune cells and to the adventages of local regulation by this transport.
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Affiliation(s)
- György Csaba
- Semmelweis University, Department of Genetics, Cell and Immunobiology, Budapest, Hungary.
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Mühlbauer E, Bazwinsky-Wutschke I, Wolgast S, Labucay K, Peschke E. Differential and day-time dependent expression of nuclear receptors RORα, RORβ, RORγ and RXRα in the rodent pancreas and islet. Mol Cell Endocrinol 2013; 365:129-38. [PMID: 23073388 DOI: 10.1016/j.mce.2012.10.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2012] [Revised: 09/12/2012] [Accepted: 10/02/2012] [Indexed: 12/26/2022]
Abstract
The retinoic-acid-related receptor family of orphan receptors (RORs) act as transcriptional activators or repressors. One of their functions involves integrated actions within circadian oscillators, particularly of the periphery. The present paper describes differential expression of the orphan receptors RORα, RORβ and RORγ and of the nuclear retinoid receptor RXRα in the pancreas and islet of rats. Immunohistochemistry of rodent islets detected nuclear receptor expression. The RORα and RORβ signals were visualised in α-cells, whereas that of RORγ was largely confined to β-cells. RXRα was expressed throughout the islets. Quantitative RT-PCR revealed circadian expression in the rat pancreas for RORγ, RORα and RXRα, but not for RORβ. Circadian expression of RORγ mRNA was verified in mouse pancreas and in rat INS-1 β cells by serum shock experiments. The results point to differential and circadian expression and thus cell-type-specific functions of RORα and RORγ in islet cells secreting glucagon or insulin.
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MESH Headings
- Animals
- Brain/metabolism
- Cell Line, Tumor
- Circadian Rhythm
- Gene Expression Regulation
- Islets of Langerhans/metabolism
- Islets of Langerhans/physiology
- Liver/metabolism
- Male
- Mice
- Mice, Knockout
- Nuclear Receptor Subfamily 1, Group F, Member 1/genetics
- Nuclear Receptor Subfamily 1, Group F, Member 1/metabolism
- Nuclear Receptor Subfamily 1, Group F, Member 2/genetics
- Nuclear Receptor Subfamily 1, Group F, Member 2/metabolism
- Nuclear Receptor Subfamily 1, Group F, Member 3/genetics
- Nuclear Receptor Subfamily 1, Group F, Member 3/metabolism
- Organ Specificity
- Pancreas/cytology
- Pancreas/metabolism
- Rats
- Rats, Wistar
- Receptor, Melatonin, MT1/genetics
- Receptor, Melatonin, MT1/metabolism
- Receptor, Melatonin, MT2/genetics
- Receptor, Melatonin, MT2/metabolism
- Retinoid X Receptor alpha/genetics
- Retinoid X Receptor alpha/metabolism
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Fitzsimmons RL, Lau P, Muscat GEO. Retinoid-related orphan receptor alpha and the regulation of lipid homeostasis. J Steroid Biochem Mol Biol 2012; 130:159-68. [PMID: 21723946 DOI: 10.1016/j.jsbmb.2011.06.009] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2011] [Revised: 06/15/2011] [Accepted: 06/16/2011] [Indexed: 10/18/2022]
Abstract
Many nuclear hormone receptors (NRs) control lipid, glucose and energy homeostasis in an organ specific manner. Concordantly, dysfunctional NR signalling results in metabolic disease. The Retinoic acid receptor-related orphan receptor alpha (RORα), a member of the NR1F subgroup, is expressed in metabolic tissues. Previous studies identified the role of this NR in dyslipidemia, apo-lipoprotein metabolism and atherosclerosis. Recent data is underscoring the significant role of this orphan NR in the regulation of phase I/II metabolism (bile acids, xenobiotics, steroids etc.), adiposity, insulin signalling, and glucose tolerance. Moreover, oxygenated sterols, have been demonstrated to function as native ligands and inverse agonists. This review focuses on the rapidly emerging and evolving role of RORα in the control of lipid and glucose homeostasis in major mass metabolic tissues. Article from the special issue orphan receptors.
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Affiliation(s)
- Rebecca L Fitzsimmons
- Obesity Research Centre, Institute for Molecular Bioscience, University of Queensland, Services Rd St. Lucia, Queensland, 4072 Australia
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40
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Tan DX, Hardeland R, Manchester LC, Korkmaz A, Ma S, Rosales-Corral S, Reiter RJ. Functional roles of melatonin in plants, and perspectives in nutritional and agricultural science. JOURNAL OF EXPERIMENTAL BOTANY 2012; 63:577-97. [PMID: 22016420 DOI: 10.1093/jxb/err256] [Citation(s) in RCA: 346] [Impact Index Per Article: 28.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
The presence of melatonin in plants is universal. Evidence has confirmed that a major portion of the melatonin is synthesized by plants themselves even though a homologue of the classic arylalkylamine N-acetyltransferase (AANAT) has not been identified as yet in plants. Thus, the serotonin N-acetylating enzyme in plants may differ greatly from the animal AANAT with regard to sequence and structure. This would imply multiple evolutionary origins of enzymes with these catalytic properties. A primary function of melatonin in plants is to serve as the first line of defence against internal and environmental oxidative stressors. The much higher melatonin levels in plants compared with those found in animals are thought to be a compensatory response by plants which lack means of mobility, unlike animals, as a means of coping with harsh environments. Importantly, remarkably high melatonin concentrations have been measured in popular beverages (coffee, tea, wine, and beer) and crops (corn, rice, wheat, barley, and oats). Billions of people worldwide consume these products daily. The beneficial effects of melatonin on human health derived from the consumption of these products must be considered. Evidence also indicates that melatonin has an ability to increase the production of crops. The mechanisms may involve the roles of melatonin in preservation of chlorophyll, promotion of photosynthesis, and stimulation of root development. Transgenic plants with enhanced melatonin content could probably lead to breakthroughs to increase crop production in agriculture and to improve the general health of humans.
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Affiliation(s)
- Dun-Xian Tan
- Department of Cellular and Structural Biology, The University of Texas, Health Science Center at San Antonio, 7703 Floyd Curl, San Antonio, TX 78229, USA.
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Abstract
BACKGROUND The diffuse neuroimmunoendocrine system (DNIES) is a universal system of response, control and organism protection. Platelets are cells of DNIES producing and storing melatonin which plays an important role in the regulation of physiological processes in the human body, under normal conditions and in pathology. Our previous study has revealed a low basic melatonin production in patients with aspirin-induced asthma (AIA). It has been suggested that low daytime production of melatonin in patients with AIA is attributable to the reduction in its synthesis in platelets in this group of patients. The objective of this study was to investigate this hypothesis. MATERIALS AND METHODS The melatonin expression in platelets has been studied by means of indirect immunofluorescence in nine patients with AIA and 14 healthy subjects. RESULTS The results of the study have revealed that only 13·1 ± 1·3% of platelets in patients with AIA have shown melatonin-specific luminescence, compared to 97·7 ± 0·6% of platelets in healthy subjects (P < 0·001). No melatonin expression has been observed in the rest of platelets in patients with AIA. No significant difference between the degree of the melatonin luminescence in platelets of the patients with AIA and control group has been found. CONCLUSIONS It can be concluded that the reduced melatonin synthesis in platelets of patients with AIA may determine a low daytime melatonin production and may lead to impairments in platelet receptors and ion channels. This results in disturbances in calcium homoeostasis, which may be a cause of platelet activation and pathological response to exogenous melatonin and acetylsalicylic acid.
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Affiliation(s)
- Helen V Evsyukova
- Department of Hospital Therapy, Medical Faculty, St Petersburg State University, St Petersburg, Russia.
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Kelkel M, Schumacher M, Dicato M, Diederich M. Antioxidant and anti-proliferative properties of lycopene. Free Radic Res 2011; 45:925-40. [DOI: 10.3109/10715762.2011.564168] [Citation(s) in RCA: 133] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Tan DX, Manchester LC, Fuentes-Broto L, Paredes SD, Reiter RJ. Significance and application of melatonin in the regulation of brown adipose tissue metabolism: relation to human obesity. Obes Rev 2011; 12:167-88. [PMID: 20557470 DOI: 10.1111/j.1467-789x.2010.00756.x] [Citation(s) in RCA: 222] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A worldwide increase in the incidence of obesity indicates the unsuccessful battle against this disorder. Obesity and the associated health problems urgently require effective strategies of treatment. The new discovery that a substantial amount of functional brown adipose tissue (BAT) is retained in adult humans provides a potential target for treatment of human obesity. BAT is active metabolically and disposes of extra energy via generation of heat through uncoupling oxidative phosphorylation in mitochondria. The physiology of BAT is readily regulated by melatonin, which not only increases recruitment of brown adipocytes but also elevates their metabolic activity in mammals. It is speculated that the hypertrophic effect and functional activation of BAT induced by melatonin may likely apply to the human. Thus, melatonin, a naturally occurring substance with no reported toxicity, may serve as a novel approach for treatment of obesity. Conversely, because of the availability of artificial light sources, excessive light exposure after darkness onset in modern societies should be considered a potential contributory factor to human obesity as light at night dramatically reduces endogenous melatonin production. In the current article, the potential associations of melatonin, BAT, obesity and the medical implications are discussed.
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Affiliation(s)
- D-X Tan
- Department of Cellular and Structural Biology, the University of Texas Health Science Center at San Antonio, San Antonio, TX 78229, USA
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Pedreros M, Ratto M, Guerra M. Expression of functional melatonin MT1 receptors in equine luteal cells: in vitro effects of melatonin on progesterone secretion. Reprod Fertil Dev 2011; 23:417-23. [DOI: 10.1071/rd10137] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2010] [Accepted: 09/09/2010] [Indexed: 01/01/2023] Open
Abstract
In the present study, we analysed the molecular mechanism(s) by which melatonin directly affects ovarian function in the mare. In Experiment 1, follicles and corpora lutea (CL) were collected from slaughterhouse ovaries and analysed for melatonin (MT1) receptor mRNA and protein. In Experiment 2, CL were collected from slaughterhouse ovaries and cultured in Dulbecco’s modified Eagle’s medium-F12 medium (control medium) supplemented with 50 ng mL–1 equine chorionic gonadotrophin (eCG), 1 nM–1 μM melatonin, 1 μM forskolin or 1 μM luzindole. Explants were cultured for 3 h in the presence of these drugs. Conditioned media were analysed for progesterone production; luteal cells were analysed for cholesterol side-chain cleavage enzyme (P450scc), a steroidogenic enzyme that converts cholesterol into pregnenolone. Both MT1 receptor mRNA and protein were expressed in follicles and CL. Melatonin inhibited both the eCG- and forskolin-stimulated production of progesterone, as well as the forskolin-stimulated expression of P450scc, in equine luteal cells and the effect was dose-dependent. The inhibitory effect of melatonin was blocked by luzindole, a non-selective melatonin MT1 and MT2 receptor antagonist. The data support the presence of functional melatonin receptors in luteal cells and a regulatory role for melatonin in the endocrine function of the equine CL.
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Srinivasan V, Kaur C, Pandi-Perumal S, Brown GM, Cardinali DP. Melatonin and its agonist ramelteon in Alzheimer's disease: possible therapeutic value. Int J Alzheimers Dis 2010; 2011:741974. [PMID: 21197086 PMCID: PMC3004402 DOI: 10.4061/2011/741974] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2010] [Revised: 10/08/2010] [Accepted: 10/27/2010] [Indexed: 12/11/2022] Open
Abstract
Alzheimer's disease (AD) is an age-associated neurodegenerative disease characterized by the progressive loss of cognitive function, loss of memory and insomnia, and abnormal behavioral signs and symptoms. Among the various theories that have been put forth to explain the pathophysiology of AD, the oxidative stress induced by amyloid β-protein (Aβ) deposition has received great attention. Studies undertaken on postmortem brain samples of AD patients have consistently shown extensive lipid, protein, and DNA oxidation. Presence of abnormal tau protein, mitochondrial dysfunction, and protein hyperphosphorylation all have been demonstrated in neural tissues of AD patients. Moreover, AD patients exhibit severe sleep/wake disturbances and insomnia and these are associated with more rapid cognitive decline and memory impairment. On this basis, the successful management of AD patients requires an ideal drug that besides antagonizing Aβ-induced neurotoxicity could also correct the disturbed sleep-wake rhythm and improve sleep quality. Melatonin is an effective chronobiotic agent and has significant neuroprotective properties preventing Aβ-induced neurotoxic effects in a number of animal experimental models. Since melatonin levels in AD patients are greatly reduced, melatonin replacement has the potential value to be used as a therapeutic agent for treating AD, particularly at the early phases of the disease and especially in those in whom the relevant melatonin receptors are intact. As sleep deprivation has been shown to produce oxidative damage, impaired mitochondrial function, neurodegenerative inflammation, and altered proteosomal processing with abnormal activation of enzymes, treatment of sleep disturbances may be a priority for arresting the progression of AD. In this context the newly introduced melatonin agonist ramelteon can be of much therapeutic value because of its highly selective action on melatonin MT1/MT2 receptors in promoting sleep.
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Affiliation(s)
- Venkatramanujam Srinivasan
- Sri Sathya Sai Medical Educational and Research Foundation, Prasanthi Nilayam, 40- Kovai Thirunagar, Coimbatore 641014, India
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Radogna F, Diederich M, Ghibelli L. Melatonin: a pleiotropic molecule regulating inflammation. Biochem Pharmacol 2010; 80:1844-52. [PMID: 20696138 DOI: 10.1016/j.bcp.2010.07.041] [Citation(s) in RCA: 250] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2010] [Revised: 07/22/2010] [Accepted: 07/27/2010] [Indexed: 02/07/2023]
Abstract
Melatonin is a neurohormone produced by the pineal gland that regulates sleep and circadian functions. Melatonin also regulates inflammatory and immune processes acting as both an activator and inhibitor of these responses. Melatonin demonstrates endocrine, but also paracrine and autocrine effects in the leukocyte compartment: on one side, leukocytes respond to melatonin in a circadian fashion; on the other side, leukocytes are able to synthesize melatonin by themselves. With its endocrine and paracrine effects, melatonin differentially modulates pro-inflammatory enzymes, controls production of inflammatory mediators such as cytokines and leukotrienes and regulates the lifespan of leukocytes by interfering with apoptotic processes. Moreover, its potent antioxidant ability allows scavenging of oxidative stress in the inflamed tissues. The interesting timing of pro- and anti-inflammatory effects, such as those affecting lipoxygenase activity, suggests that melatonin might promote early phases of inflammation on one hand and contribute to its attenuation on the other hand, in order to avoid complications of chronic inflammation. This review aims at giving a comprehensive overview of the various inflammatory pathways regulated by this pleiotropic hormone.
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Affiliation(s)
- Flavia Radogna
- Dipartimento di Biologia, Universita' di Roma Tor Vergata, Italy
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47
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Zhou JL, Liu SQ, Qiu B, Hu QJ, Ming JH, Peng H. The protective effect of sodium hyaluronate on the cartilage of rabbit osteoarthritis by inhibiting peroxisome proliferator-activated receptor-gamma messenger RNA expression. Yonsei Med J 2009; 50:832-7. [PMID: 20046426 PMCID: PMC2796412 DOI: 10.3349/ymj.2009.50.6.832] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2008] [Revised: 02/21/2009] [Accepted: 03/04/2009] [Indexed: 12/14/2022] Open
Abstract
PURPOSE The purpose of this study was to study the protective effect and influence of sodium hyaluronate (Na-HA) on mRNA expression of peroxisome proliferators-activated receptor gamma (PPAR-gamma) in cartilage of rabbit osteoarthritis (OA) model. MATERIALS AND METHODS Forty eight white rabbits were randomly divided into A, B, and C groups. Group A was normal control group, B and C groups underwent unilateral anterior cruciate ligament transection (ACLT). The rabbits in group B were injected normal saline after ACLT; and Group C received intra-articular 1% sodium hyaluronate (HA) injection 5 weeks after surgery, 0.3 mL once a week. At 11th week after surgery, all the rabbits were sacrificed. The cartilage changes on the medial femoral condyles were graded separately. Cartilage sections were stained with safranin-O and HE, and messenger RNA (mRNA) expression of PPAR-gamma was detected by using real time polymerase chain reaction (Real Time-PCR). RESULTS Cartilage degeneration in group B was significantly more severe than in A and C injection group. The grey value of Safranin-O of B group was higher than A and C groups. Expression of PPAR-gamma mRNA in group B was higher than group A and C. CONCLUSION This study shows that Na-HA has a protective effect on articular cartilage degeneration, and the inhibitory effect on the PPAR-gamma mRNA expression may be one of therapeutic mechanism of Na-HA.
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Affiliation(s)
- Jian-lin Zhou
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, Hubei, China.
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48
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Berra B, Rizzo AM. Melatonin: circadian rhythm regulator, chronobiotic, antioxidant and beyond. Clin Dermatol 2009; 27:202-9. [DOI: 10.1016/j.clindermatol.2008.04.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Bartsch C, Bartsch H, Peschke E. Light, melatonin and cancer: current results and future perspectives 1. BIOL RHYTHM RES 2009. [DOI: 10.1080/09291010802066983] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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50
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Karbownik M, Reiter RJ. Antioxidative Effects of Melatonin in Protection Against Cellular Damage Caused by Ionizing Radiation. ACTA ACUST UNITED AC 2008. [DOI: 10.1111/j.1525-1373.2000.22502.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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