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Reiter RJ, Sharma R, Tan DX, Chuffa LGDA, da Silva DGH, Slominski AT, Steinbrink K, Kleszczynski K. Dual sources of melatonin and evidence for different primary functions. Front Endocrinol (Lausanne) 2024; 15:1414463. [PMID: 38808108 PMCID: PMC11130361 DOI: 10.3389/fendo.2024.1414463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Accepted: 04/30/2024] [Indexed: 05/30/2024] Open
Abstract
This article discusses data showing that mammals, including humans, have two sources of melatonin that exhibit different functions. The best-known source of melatonin, herein referred to as Source #1, is the pineal gland. In this organ, melatonin production is circadian with maximal synthesis and release into the blood and cerebrospinal fluid occurring during the night. Of the total amount of melatonin produced in mammals, we speculate that less than 5% is synthesized by the pineal gland. The melatonin rhythm has the primary function of influencing the circadian clock at the level of the suprachiasmatic nucleus (the CSF melatonin) and the clockwork in all peripheral organs (the blood melatonin) via receptor-mediated actions. A second source of melatonin (Source # 2) is from multiple tissues throughout the body, probably being synthesized in the mitochondria of these cells. This constitutes the bulk of the melatonin produced in mammals and is concerned with metabolic regulation. This review emphasizes the action of melatonin from peripheral sources in determining re-dox homeostasis, but it has other critical metabolic effects as well. Extrapineal melatonin synthesis does not exhibit a circadian rhythm and it is not released into the blood but acts locally in its cell of origin and possibly in a paracrine matter on adjacent cells. The factors that control/influence melatonin synthesis at extrapineal sites are unknown. We propose that the concentration of melatonin in these cells is determined by the subcellular redox state and that melatonin synthesis may be inducible under stressful conditions as in plant cells.
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Affiliation(s)
- Russel J. Reiter
- Department of Cell Systems and Anatomy, UT Health San Antonio, Long School of Medicine, San Antonio TX, United States
| | - Ramaswamy Sharma
- Applied Biomedical Sciences, University of the Incarnate Word, School of Osteopathic Medicine, San Antonio, TX, United States
| | - Dun-Xian Tan
- Department of Cell Systems and Anatomy, UT Health San Antonio, Long School of Medicine, San Antonio TX, United States
| | - Luiz Gustavo de Almieda Chuffa
- Departamento de Biologia Estrutural e Funcional, Setor de Anatomia - Instituto de Biociências, IBB/UNESP, Botucatu, São Paulo, Brazil
| | - Danilo Grunig Humberto da Silva
- Department of Biology, Universidade Estadual Paulista (UNESP), São Paulo, Brazil
- Department of Biology, Universidade Federal de Mato Grosso Do Sul, Três Lagoas, Mato Grosso Do Sul, Brazil
| | - Andrzej T. Slominski
- US and Pathology Laboratory Service, Department of Dermatology, University of Alabama at Birmingham, Birmingham, AL, United States
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Greco G, Di Lorenzo R, Ricci L, Di Serio T, Vardaro E, Laneri S. Clinical Studies Using Topical Melatonin. Int J Mol Sci 2024; 25:5167. [PMID: 38791203 PMCID: PMC11121188 DOI: 10.3390/ijms25105167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 05/03/2024] [Accepted: 05/07/2024] [Indexed: 05/26/2024] Open
Abstract
Melatonin is ubiquitously present in all animals and plants, where it exerts a variety of physiological activities thanks to its antioxidant properties and its key role as the first messenger of extracellular signaling functions. Most of the clinical studies on melatonin refer to its widespread oral use as a dietary supplement to improve sleep. A far smaller number of articles describe the clinical applications of topical melatonin to treat or prevent skin disorders by exploiting its antioxidant and anti-inflammatory activities. This review focuses on the clinical studies in which melatonin was applied on the skin as a photoprotective, anti-aging, or hair growth-promoting agent. The methodologies and results of such studies are discussed to provide an overall picture of the state of the art in this intriguing field of research. The clinical studies in which melatonin was applied on the skin before exposure to radiation (UV, sunlight, and high-energy beams) were all characterized by an appropriate design (randomized, double-blind, and placebo-controlled) and strongly support its clinical efficacy in preventing or reducing skin damage such as dermatitis, erythema, and sunburn. Most of the studies examined in this review do not provide a clear demonstration of the efficacy of topical melatonin as a skin anti-aging or as a hair growth-promoting agent owing to limitations in their design and/or to the use of melatonin combined with extra active ingredients, except for one trial that suggests a possible beneficial role of melatonin in treating some forms of alopecia in women. Further research efforts are required to reach definitive conclusions concerning the actual benefits of topical melatonin to counteract skin aging and hair loss.
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Affiliation(s)
| | | | | | | | | | - Sonia Laneri
- Dipartimento di Farmacia, Università degli Studi di Napoli Federico II, Via Domenico Montesano, 49, 80131 Napoli, Italy; (G.G.); (R.D.L.); (L.R.); (T.D.S.); (E.V.)
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3
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Lei W, Xu X, Li N, Zhang Y, Tang R, Li X, Tang J, Wu X, Lu C, Bai Y, Yao Y, Qiu Z, Yang Y, Zheng X. Isopropyl 3-(3,4-dihydroxyphenyl) 2-hydroxypropanoate protects septic myocardial injury via regulating GAS6/Axl-AMPK signaling pathway. Biochem Pharmacol 2024; 221:116035. [PMID: 38301968 DOI: 10.1016/j.bcp.2024.116035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 12/27/2023] [Accepted: 01/25/2024] [Indexed: 02/03/2024]
Abstract
In a previous study, we used metabolomic techniques to identify a new metabolite of Danshen Dripping Pills called isopropyl 3-(3,4-dihydroxyphenyl)-2-hydroxypropanoate (IDHP), which has potential as a drug candidate for cardiovascular diseases. This study aimed to explore the protective effects of IDHP against septic myocardial injury, as well as its molecular mechanism. Wild type or GAS6 knockout mice injured by cecal ligation and puncture (CLP) were used to observe the effect of IDHP. Here, we found that a specific concentration of IDHP (60 mg/kg) significantly increased the survival rate of septic mice to about 75 % at 72 h post CLP, and showed improvements in sepsis score, blood biochemistry parameters, cardiac function, and myocardial tissue damage. Furthermore, IDHP inhibited myocardial oxidative stress, inflammatory response, apoptosis, and mitochondrial dysfunction. Molecularly, we discovered that IDHP treatment reversed the CLP-induced downregulation of GAS6, Axl, and p-AMPK/AMPK expression. In addition, GAS6 knockout reversed the positive effect of IDHP in septic mice, indicated by more severe myocardial tissue damage, oxidative stress, inflammatory response, and mitochondrial dysfunction. GAS6 knockout also resulted in decreased levels of GAS6, Axl, and p-AMPK/AMPK. Taken together, our study provides evidence that IDHP has significant cardioprotective effects against sepsis by regulating the GAS6/Axl-AMPK signaling pathway. This finding has important therapeutic potential for treating sepsis.
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Affiliation(s)
- Wangrui Lei
- Xi'an Key Laboratory of Innovative Drug Research for Heart Failure, Faculty of Life Sciences and Medicine, Northwest University, 229 Taibai North Road, Xi'an 710069, China; Xi'an Key Laboratory of Cardiovascular and Cerebrovascular Diseases, Xi'an No.3 Hospital, Faculty of Life Sciences and Medicine, Northwest University, 10 Fengcheng Three Road, Xi'an 710021, China
| | - Xuezeng Xu
- Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, 127 Changle West Road, Xi'an 710032, China
| | - Ning Li
- Xi'an Key Laboratory of Innovative Drug Research for Heart Failure, Faculty of Life Sciences and Medicine, Northwest University, 229 Taibai North Road, Xi'an 710069, China; Xi'an Key Laboratory of Cardiovascular and Cerebrovascular Diseases, Xi'an No.3 Hospital, Faculty of Life Sciences and Medicine, Northwest University, 10 Fengcheng Three Road, Xi'an 710021, China
| | - Yan Zhang
- Xi'an Key Laboratory of Innovative Drug Research for Heart Failure, Faculty of Life Sciences and Medicine, Northwest University, 229 Taibai North Road, Xi'an 710069, China; Xi'an Key Laboratory of Cardiovascular and Cerebrovascular Diseases, Xi'an No.3 Hospital, Faculty of Life Sciences and Medicine, Northwest University, 10 Fengcheng Three Road, Xi'an 710021, China
| | - Ran Tang
- Xi'an Key Laboratory of Innovative Drug Research for Heart Failure, Faculty of Life Sciences and Medicine, Northwest University, 229 Taibai North Road, Xi'an 710069, China; Xi'an Key Laboratory of Cardiovascular and Cerebrovascular Diseases, Xi'an No.3 Hospital, Faculty of Life Sciences and Medicine, Northwest University, 10 Fengcheng Three Road, Xi'an 710021, China
| | - Xiaoru Li
- Xi'an Key Laboratory of Innovative Drug Research for Heart Failure, Faculty of Life Sciences and Medicine, Northwest University, 229 Taibai North Road, Xi'an 710069, China; Xi'an Key Laboratory of Cardiovascular and Cerebrovascular Diseases, Xi'an No.3 Hospital, Faculty of Life Sciences and Medicine, Northwest University, 10 Fengcheng Three Road, Xi'an 710021, China
| | - Jiayou Tang
- Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, 127 Changle West Road, Xi'an 710032, China
| | - Xue Wu
- Xi'an Key Laboratory of Innovative Drug Research for Heart Failure, Faculty of Life Sciences and Medicine, Northwest University, 229 Taibai North Road, Xi'an 710069, China; Xi'an Key Laboratory of Cardiovascular and Cerebrovascular Diseases, Xi'an No.3 Hospital, Faculty of Life Sciences and Medicine, Northwest University, 10 Fengcheng Three Road, Xi'an 710021, China
| | - Chenxi Lu
- Xi'an Key Laboratory of Innovative Drug Research for Heart Failure, Faculty of Life Sciences and Medicine, Northwest University, 229 Taibai North Road, Xi'an 710069, China; Xi'an Key Laboratory of Cardiovascular and Cerebrovascular Diseases, Xi'an No.3 Hospital, Faculty of Life Sciences and Medicine, Northwest University, 10 Fengcheng Three Road, Xi'an 710021, China
| | - Yajun Bai
- Xi'an Key Laboratory of Innovative Drug Research for Heart Failure, Faculty of Life Sciences and Medicine, Northwest University, 229 Taibai North Road, Xi'an 710069, China
| | - Yu Yao
- Xi'an Key Laboratory of Innovative Drug Research for Heart Failure, Faculty of Life Sciences and Medicine, Northwest University, 229 Taibai North Road, Xi'an 710069, China; Xi'an Key Laboratory of Cardiovascular and Cerebrovascular Diseases, Xi'an No.3 Hospital, Faculty of Life Sciences and Medicine, Northwest University, 10 Fengcheng Three Road, Xi'an 710021, China
| | - Zhenye Qiu
- Xi'an Key Laboratory of Innovative Drug Research for Heart Failure, Faculty of Life Sciences and Medicine, Northwest University, 229 Taibai North Road, Xi'an 710069, China; Xi'an Key Laboratory of Cardiovascular and Cerebrovascular Diseases, Xi'an No.3 Hospital, Faculty of Life Sciences and Medicine, Northwest University, 10 Fengcheng Three Road, Xi'an 710021, China
| | - Yang Yang
- Xi'an Key Laboratory of Innovative Drug Research for Heart Failure, Faculty of Life Sciences and Medicine, Northwest University, 229 Taibai North Road, Xi'an 710069, China; Xi'an Key Laboratory of Cardiovascular and Cerebrovascular Diseases, Xi'an No.3 Hospital, Faculty of Life Sciences and Medicine, Northwest University, 10 Fengcheng Three Road, Xi'an 710021, China.
| | - Xiaohui Zheng
- Xi'an Key Laboratory of Innovative Drug Research for Heart Failure, Faculty of Life Sciences and Medicine, Northwest University, 229 Taibai North Road, Xi'an 710069, China; Xi'an Key Laboratory of Cardiovascular and Cerebrovascular Diseases, Xi'an No.3 Hospital, Faculty of Life Sciences and Medicine, Northwest University, 10 Fengcheng Three Road, Xi'an 710021, China.
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Fernández-Martínez J, Ramírez-Casas Y, Aranda-Martínez P, López-Rodríguez A, Sayed RKA, Escames G, Acuña-Castroviejo D. iMS-Bmal1 -/- mice show evident signs of sarcopenia that are counteracted by exercise and melatonin therapies. J Pineal Res 2024; 76:e12912. [PMID: 37702245 DOI: 10.1111/jpi.12912] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 08/29/2023] [Accepted: 08/31/2023] [Indexed: 09/14/2023]
Abstract
Sarcopenia is an age-related disease characterized by a reduction in muscle mass, strength, and function and, therefore, a deterioration in skeletal muscle health and frailty. Although the cause of sarcopenia is still unknown and, thus, there is no treatment, increasing evidence suggests that chronodisruption, particularly alterations in Bmal1 clock gene, can lead to those deficits culminating in sarcopenia. To gain insight into the cause and mechanism of sarcopenia and the protective effect of a therapeutic intervention with exercise and/or melatonin, the gastrocnemius muscles of male and female skeletal muscle-specific and inducible Bmal1 knockout mice (iMS-Bmal1-/- ) were examined by phenotypic tests and light and electron microscopy. Our results revealed a disruption of the normal activity/rest rhythm, a drop in skeletal muscle function and mass, and increased frailty in male and female iMS-Bmal1-/- animals compared to controls. A reduction in muscle fiber size and increased collagenous tissue were also detected, accompanied by reduced mitochondrial oxidative capacity and a compensatory shift towards a more oxidative fiber type. Electron microscopy further supports mitochondrial impairment in mutant mice. Melatonin and exercise ameliorated the damage caused by loss of Bmal1 in mutant mice, except for mitochondrial damage, which was worsened by the latter. Thus, iMS-Bmal1-/- mice let us to identify Bmal1 deficiency as the responsible for the appearance of sarcopenia in the gastrocnemius muscle. Moreover, the results support the exercise and melatonin as therapeutic tools to counteract sarcopenia, by a mechanism that does not require the presence of Bmal1.
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Grants
- PI19-01372 Instituto de Salud Carlos III
- CB/10/00238 Instituto de Salud Carlos III
- CTS-101 Consejería de Economía, Innovación, Ciencia y Empleo, Junta de Andalucía
- P18-RT-3222 Consejería de Economía, Innovación, Ciencia y Empleo, Junta de Andalucía
- P18-RT-698 Consejería de Economía, Innovación, Ciencia y Empleo, Junta de Andalucía
- Ministerio de Educación, Spain
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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, Granada, Spain
- Instituto de Investigación Biosanitaria (Ibs.Granada), Hospital Universitario San Cecilio, 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, Granada, Spain
- Instituto de Investigación Biosanitaria (Ibs.Granada), Hospital Universitario San Cecilio, Granada, Spain
| | - 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, Granada, Spain
- Instituto de Investigación Biosanitaria (Ibs.Granada), Hospital Universitario San Cecilio, Granada, Spain
| | - Alba López-Rodríguez
- Centro de Investigación Biomédica, Facultad de Medicina, Departamento de Fisiología, Instituto de Biotecnología, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, Granada, Spain
- Instituto de Investigación Biosanitaria (Ibs.Granada), Hospital Universitario San Cecilio, Granada, Spain
| | - Ramy K A Sayed
- Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Sohag University, Sohag, Egypt
| | - 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, Granada, Spain
- Instituto de Investigación Biosanitaria (Ibs.Granada), Hospital Universitario San Cecilio, Granada, Spain
- Centro de Investigación Biomédica en Red de Fragilidad y Envejecimiento Saludable (CIBERFES), ISCIII, Valencia, 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, Granada, Spain
- Instituto de Investigación Biosanitaria (Ibs.Granada), Hospital Universitario San Cecilio, Granada, Spain
- Centro de Investigación Biomédica en Red de Fragilidad y Envejecimiento Saludable (CIBERFES), ISCIII, Valencia, Spain
- UGC de Laboratorios Clínicos, Hospital Universitario San Cecilio, Granada, Spain
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5
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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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6
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Zhang Z, Cui X, Liu K, Gao X, Zhou Q, Xi H, Zhao Y, Zhang D, Zhu B. Adrenal sympathetic nerve mediated the anti-inflammatory effect of electroacupuncture at ST25 acupoint in a rat model of sepsis. Anat Rec (Hoboken) 2023; 306:3178-3188. [PMID: 36300612 DOI: 10.1002/ar.25102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/11/2022] [Accepted: 09/19/2022] [Indexed: 11/07/2022]
Abstract
Acupuncture plays a vital anti-inflammatory action in sepsis by activating autonomic nerve anti-inflammatory pathways, such as sympathoadrenal medullary pathway, but the mechanism remains unclear. This study aims to explore the optimum parameter of electroacupuncture (EA) stimulation in regulating the sympathoadrenal medullary pathway and evaluate EA's anti-inflammatory effect on sepsis. To determine the optimum parameter of EA at homotopic acupoint on adrenal sympathetic activity, the left adrenal sympathetic nerve firing rate evoked by different intensities of single shock electrical stimulation (ES) at ST25 in healthy male Sprague-Dawley rats were evaluated by in vivo electrophysiological recording, and the levels of norepinephrine (NE) and its metabolites normetanephrine (NMN) were also examined using mass spectrometry. To verify the role of EA at ST25 in sepsis, the rats were given an intraperitoneal injection of lipopolysaccharide (LPS) to induce sepsis model, and survival rate, clinical score, and the level of interleukin (IL)-6, IL-1β, and IL-10 were evaluated after EA application. We observed that 3 mA is the optimal intensity for activating adrenal sympathetic nerve, which significantly elevated the level of NE in the peripheral blood. For LPS-treated rats, EA at the ST25 apparently increased the survival rate and improved the clinical score compared to the control group. Furthermore, 3 mA EA at ST25 significantly decreased pro-inflammatory cytokines IL-6 and IL-1β and upregulated anti-inflammatory cytokine IL-10 compared to the LPS-treated group. Overall, our data suggested that 3 mA is the optimal EA intensity at ST25 to activate the sympathoadrenal medullary pathway and exert an anti-inflammatory effect in sepsis.
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Affiliation(s)
- Ziyi Zhang
- Department of Physiology, Institute of Acupuncture and Moxibustion, China Academy of Chinese Medical Sciences, Beijing, China
- College of Acupuncture and Tuina, Shaanxi University of Chinese Medicine, Xianyang, China
| | - Xiang Cui
- Department of Physiology, Institute of Acupuncture and Moxibustion, China Academy of Chinese Medical Sciences, Beijing, China
| | - Kun Liu
- Department of Physiology, Institute of Acupuncture and Moxibustion, China Academy of Chinese Medical Sciences, Beijing, China
| | - Xinyan Gao
- Department of Physiology, Institute of Acupuncture and Moxibustion, China Academy of Chinese Medical Sciences, Beijing, China
| | - Qingchen Zhou
- Department of Physiology, Institute of Acupuncture and Moxibustion, China Academy of Chinese Medical Sciences, Beijing, China
- Acupuncture-moxibustion and Tuina Department, Qilu Hospital of Shandong University, Jinan, China
| | - Hanqing Xi
- Department of Physiology, Institute of Acupuncture and Moxibustion, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yingkun Zhao
- Beijing University of Chinese Medicine Third Affiliated Hospital, Beijing, China
| | - Dingdan Zhang
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Bing Zhu
- Department of Physiology, Institute of Acupuncture and Moxibustion, China Academy of Chinese Medical Sciences, Beijing, China
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7
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Méndez N, Corvalan F, Halabi D, Ehrenfeld P, Maldonado R, Vergara K, Seron-Ferre M, Torres-Farfan C. From gestational chronodisruption to noncommunicable diseases: Pathophysiological mechanisms of programming of adult diseases, and the potential therapeutic role of melatonin. J Pineal Res 2023; 75:e12908. [PMID: 37650128 DOI: 10.1111/jpi.12908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 07/19/2023] [Accepted: 08/18/2023] [Indexed: 09/01/2023]
Abstract
During gestation, the developing fetus relies on precise maternal circadian signals for optimal growth and preparation for extrauterine life. These signals regulate the daily delivery of oxygen, nutrients, hormones, and other biophysical factors while synchronizing fetal rhythms with the external photoperiod. However, modern lifestyle factors such as light pollution and shift work can induce gestational chronodisruption, leading to the desynchronization of maternal and fetal circadian rhythms. Such disruptions have been associated with adverse effects on cardiovascular, neurodevelopmental, metabolic, and endocrine functions in the fetus, increasing the susceptibility to noncommunicable diseases (NCDs) in adult life. This aligns with the Developmental Origins of Health and Disease theory, suggesting that early-life exposures can significantly influence health outcomes later in life. The consequences of gestational chronodisruption also extend into adulthood. Environmental factors like diet and stress can exacerbate the adverse effects of these disruptions, underscoring the importance of maintaining a healthy circadian rhythm across the lifespan to prevent NCDs and mitigate the impact of gestational chronodisruption on aging. Research efforts are currently aimed at identifying potential interventions to prevent or mitigate the effects of gestational chronodisruption. Melatonin supplementation during pregnancy emerges as a promising intervention, although further investigation is required to fully understand the precise mechanisms involved and to develop effective strategies for promoting health and preventing NCDs in individuals affected by gestational chronodisruption.
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Affiliation(s)
- Natalia Méndez
- Laboratorio de Cronobiología del Desarrollo, Instituto de Anatomía, Histología y Patología, Facultad de Medicina, Universidad Austral de Chile, Valdivia, Chile
| | - Fernando Corvalan
- Laboratorio de Cronobiología del Desarrollo, Instituto de Anatomía, Histología y Patología, Facultad de Medicina, Universidad Austral de Chile, Valdivia, Chile
| | - Diego Halabi
- Laboratorio de Cronobiología del Desarrollo, Instituto de Anatomía, Histología y Patología, Facultad de Medicina, Universidad Austral de Chile, Valdivia, Chile
- School of Dentistry, Facultad de Medicina, Universidad Austral de Chile, Santiago, Chile
| | - Pamela Ehrenfeld
- Laboratorio de Cronobiología del Desarrollo, Instituto de Anatomía, Histología y Patología, Facultad de Medicina, Universidad Austral de Chile, Valdivia, Chile
- School of Dentistry, Facultad de Medicina, Universidad Austral de Chile, Santiago, Chile
- Centro Interdisciplinario de Estudios del Sistema Nervioso (CISNe), Universidad Austral de Chile, Valdivia, Chile
| | - Rodrigo Maldonado
- Laboratorio de Cronobiología del Desarrollo, Instituto de Anatomía, Histología y Patología, Facultad de Medicina, Universidad Austral de Chile, Valdivia, Chile
- School of Dentistry, Facultad de Medicina, Universidad Austral de Chile, Santiago, Chile
- Centro Interdisciplinario de Estudios del Sistema Nervioso (CISNe), Universidad Austral de Chile, Valdivia, Chile
| | - Karina Vergara
- Laboratorio de Cronobiología del Desarrollo, Instituto de Anatomía, Histología y Patología, Facultad de Medicina, Universidad Austral de Chile, Valdivia, Chile
| | - Maria Seron-Ferre
- Laboratorio de Cronobiología del Desarrollo, Instituto de Anatomía, Histología y Patología, Facultad de Medicina, Universidad Austral de Chile, Valdivia, Chile
- School of Dentistry, Facultad de Medicina, Universidad Austral de Chile, Santiago, Chile
- Centro Interdisciplinario de Estudios del Sistema Nervioso (CISNe), Universidad Austral de Chile, Valdivia, Chile
- Programa de Fisiopatología, ICBM, Facultad de Medicina, Universidad de Chile, Santiago de Chile
| | - Claudia Torres-Farfan
- Laboratorio de Cronobiología del Desarrollo, Instituto de Anatomía, Histología y Patología, Facultad de Medicina, Universidad Austral de Chile, Valdivia, Chile
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Möller JKS, Linowiecka K, Gagat M, Brożyna AA, Foksiński M, Wolnicka-Glubisz A, Pyza E, Reiter RJ, Tulic MK, Slominski AT, Steinbrink K, Kleszczyński K. Melanogenesis Is Directly Affected by Metabolites of Melatonin in Human Melanoma Cells. Int J Mol Sci 2023; 24:14947. [PMID: 37834395 PMCID: PMC10573520 DOI: 10.3390/ijms241914947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 10/03/2023] [Accepted: 10/04/2023] [Indexed: 10/15/2023] Open
Abstract
Melatonin (N-acetyl-5-methoxytryptamine, MEL), its kynurenic (N1-acetyl-N2-formyl-5-methoxykynurenine, AFMK) and indolic derivatives (6-hydroxymelatonin, 6(OH)MEL and 5-methoxytryptamine, 5-MT) are endogenously produced in human epidermis. Melatonin, produced by the pineal gland, brain and peripheral organs, displays a diversity of physiological functions including anti-inflammatory, immunomodulatory, and anti-tumor capacities. Herein, we assessed their regulatory effect on melanogenesis using amelanotic (A375, Sk-Mel-28) and highly pigmented (MNT-1, melanotic) human melanoma cell lines. We discovered that subjected compounds decrease the downstream pathway of melanin synthesis by causing a significant drop of cyclic adenosine monophosphate (cAMP) level, the microphthalmia-associated transcription factor (MITF) and resultant collapse of tyrosinase (TYR) activity, and melanin content comparatively to N-phenylthiourea (PTU, a positive control). We observed a reduction in pigment in melanosomes visualized by the transmission electron microscopy. Finally, we assessed the role of G-protein-coupled seven-transmembrane-domain receptors. Obtained results revealed that nonselective MT1 and MT2 receptor antagonist (luzindole) or selective MT2 receptor antagonist (4-P-PDOT) did not affect dysregulation of the melanin pathway indicating a receptor-independent mechanism. Our findings, together with the current state of the art, provide a convenient experimental model to study the complex relationship between metabolites of melatonin and the control of pigmentation serving as a future and rationale strategy for targeted therapies of melanoma-affected patients.
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Affiliation(s)
- Jack K. S. Möller
- Department of Dermatology, University of Münster, Von-Esmarch-Str. 58, 48149 Münster, Germany; (J.K.S.M.); (K.S.)
| | - Kinga Linowiecka
- Department of Human Biology, Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University, Lwowska 1, 87-100 Toruń, Poland; (K.L.); (A.A.B.)
- Phillip Frost Department of Dermatology & Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL 33125, USA
| | - Maciej Gagat
- Department of Histology and Embryology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-092 Bydgoszcz, Poland;
| | - Anna A. Brożyna
- Department of Human Biology, Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University, Lwowska 1, 87-100 Toruń, Poland; (K.L.); (A.A.B.)
| | - Marek Foksiński
- Department of Clinical Biochemistry, Faculty of Pharmacy, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-092 Bydgoszcz, Poland;
| | - Agnieszka Wolnicka-Glubisz
- Department of Biophysics and Cancer Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Krakow, Poland;
| | - Elżbieta Pyza
- Department of Cell Biology and Imaging, Institute of Zoology and Biomedical Research, Jagiellonian University, Gronostajowa 9, 30-387 Kraków, Poland;
| | - Russel J. Reiter
- Department of Cell Systems and Anatomy, UT Health, Long School of Medicine, San Antonio, TX 78229, USA;
| | - Meri K. Tulic
- Team 12, INSERM U1065, Centre Méditerranéen de Médecine Moléculaire (C3M), Université Côte d’Azur, 06200 Nice, France;
| | - Andrzej T. Slominski
- Department of Dermatology, Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL 35294, USA;
- Pathology and Laboratory Medicine Service, VA Medical Center, Birmingham, AL 35294, USA
| | - Kerstin Steinbrink
- Department of Dermatology, University of Münster, Von-Esmarch-Str. 58, 48149 Münster, Germany; (J.K.S.M.); (K.S.)
| | - Konrad Kleszczyński
- Department of Dermatology, University of Münster, Von-Esmarch-Str. 58, 48149 Münster, Germany; (J.K.S.M.); (K.S.)
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9
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Taha AM, Mahmoud AM, Ghonaim MM, Kamran A, AlSamhori JF, AlBarakat MM, Shrestha AB, Jaiswal V, Reiter RJ. Melatonin as a potential treatment for septic cardiomyopathy. Biomed Pharmacother 2023; 166:115305. [PMID: 37619482 DOI: 10.1016/j.biopha.2023.115305] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Revised: 08/02/2023] [Accepted: 08/07/2023] [Indexed: 08/26/2023] Open
Abstract
Septic cardiomyopathy (SCM) is a common complication of sepsis contributing to high mortality rates. Its pathophysiology involves complex factors, including inflammatory cytokines, mitochondrial dysfunction, oxidative stress, and immune dysregulation. Despite extensive research, no effective pharmacological agent has been established for sepsis-induced cardiomyopathy. Melatonin, a hormone with diverse functions in the body, has emerged as a potential agent for SCM through its anti-oxidant, anti-inflammatory, anti-apoptotic, and cardioprotective roles. Through various molecular levels of its mechanism of action, it counterattacks the adverse event of sepsis. Experimental studies have mentioned that melatonin protects against many cardiovascular diseases and exerts preventive effects on SCM. Moreover, melatonin has been investigated in combination with other drugs such as antibiotics, resveratrol, and anti-oxidants showing synergistic effects in reducing inflammation, anti-oxidant, and improving cardiac function. While preclinical studies have demonstrated positive results, clinical trials are required to establish the optimal dosage, route of administration, and treatment duration for melatonin in SCM. Its safety profile, low toxicity, and natural occurrence in the human body provide a favorable basis for its clinical use. This review aims to provide an overview of the current evidence of the use of melatonin in sepsis-induced cardiomyopathy (SICM). Melatonin appears to be promising as a possible treatment for sepsis-induced cardiomyopathy and demands further investigation.
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Affiliation(s)
- Amira Mohamed Taha
- Faculty of Medicine, Fayoum University, Fayoum, Egypt; Medical Research Group of Egypt (MRGE), Negida Academy, Arlington, MA, USA
| | | | | | - Ateeba Kamran
- Bachelor of Medicine, Bachelor of Surgery, Karachi Medical and Dental College, Karachi, Pakistan
| | | | - Majd M AlBarakat
- Faculty of Medicine, Jordan University of Science and Technology, Irbid, Jordan
| | - Abhigan Babu Shrestha
- Department of Internal Medicine, M Abdur Rahim Medical College, Dinajpur, Bangladesh.
| | | | - Russel J Reiter
- Department of Cell Systems and Anatomy, UT Health San Antonio, San Antonio, TX, USA
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10
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Ling J, Yu S, Xiong F, Xu T, Li S. Melatonin Attenuates Sepsis-Induced Acute Lung Injury via Inhibiting Excessive Mitophagy. Drug Des Devel Ther 2023; 17:2775-2786. [PMID: 37719362 PMCID: PMC10503510 DOI: 10.2147/dddt.s423264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Accepted: 08/31/2023] [Indexed: 09/19/2023] Open
Abstract
Background Epidemiological studies have indicated that lung injury is a frequent complication of sepsis. Mitophagy is vital to multiple pathological processes and diseases; however, its influence on sepsis-induced acute lung injury remains elusive. Melatonin has multiple antioxidant action and anti-inflammatory effects, including regulating mitophagy and inflammatory cytokine expression. Whereas, little is known about the affection of melatonin and mitophagy on CLP-induced ALI. Methods The in vivo effect of melatonin on OPTN-mediated mitophagy was studied by CLP-induced ALI in a mouse model using C57BL/6 followed by treatment with vehicle and melatonin (30 mg/kg/d, intraperitoneal injection). ALI was assayed by lung wet /dry ratio, hematoxylin and eosin staining, and immunohistochemical staining. Signaling pathway changes were subsequently determined by Western blotting and immunofluorescence staining. The effects of melatonin on STAT3 activation and TNF-α production were detected by Western blotting, PCR, and immunohistochemical staining. Results Our results indicated that OPTN, mitophagy adaptors were significantly repressed in CLP-induced ALI, accompanied by overactivation of mitophagy and inflammation. At the same time, we found that melatonin treatment alleviated ALI caused by CLP, and the effect was highly correlated with OPTN-related mitophagy. Furthermore, we demonstrated that OPTN-related mitophagy, which was normalized by melatonin, blocked STAT3 involved epithelial barrier and inflammation in vivo. Conclusion Overall, our results confirm that mitophagy is adjusted by melatonin in the CLP-induced ALI. Moreover, manipulation of mitophagy through melatonin could be a possible treatment to reduce sepsis-associated lung injury.
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Affiliation(s)
- Jianmin Ling
- Department of Emergency Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430000, People’s Republic of China
- Department of Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430000, People’s Republic of China
| | - Shanshan Yu
- Department of Emergency Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430000, People’s Republic of China
- Department of Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430000, People’s Republic of China
| | - Feng Xiong
- Department of Emergency Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430000, People’s Republic of China
- Department of Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430000, People’s Republic of China
| | - Tingting Xu
- Department of Emergency Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430000, People’s Republic of China
- Department of Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430000, People’s Republic of China
| | - Shusheng Li
- Department of Emergency Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430000, People’s Republic of China
- Department of Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430000, People’s Republic of China
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Gao Y, Li Y, Wang J, Zhang X, Yao D, Ding X, Zhao X, Zhang Y. Melatonin Alleviates Lipopolysaccharide-Induced Endometritis by Inhibiting the Activation of NLRP3 Inflammasome through Autophagy. Animals (Basel) 2023; 13:2449. [PMID: 37570258 PMCID: PMC10417527 DOI: 10.3390/ani13152449] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 07/24/2023] [Accepted: 07/26/2023] [Indexed: 08/13/2023] Open
Abstract
Bovine endometritis is characterized by reduced milk production and high rates of infertility. Prior research has indicated that melatonin may possess anti-inflammatory and antioxidant properties that can counteract the progression of inflammatory diseases. In this research, we attempted to elucidate the protective effects of melatonin on LPS-induced endometritis. The results obtained from enzyme-linked immunosorbent assay (ELISA) and quantitative real-time PCR (qRT-PCR) revealed that melatonin effectively reduced the production and release of pro-inflammatory cytokines in an LPS-induced bovine endometrial epithelial cell line (BEND cells). Furthermore, western blotting demonstrated that melatonin treatment reduced the expression levels of the NOD-like receptor family pyrin domain-containing 3 (NLRP3) inflammasome-related proteins, including NLRP3, activated caspase-1, and cleaved IL-1β. Importantly, we further demonstrated that the anti-inflammatory effect of melatonin on BEND cells was related to autophagy by western blotting. Moreover, we used western blotting to detect autophagy-related proteins, MitoSOX to detect mitochondrial reactive oxygen species production (mtROS), and mitochondrial membrane potential (MMP) assay to detect mitochondrial membrane potential. The administration of melatonin demonstrated a significant enhancement in autophagy within BEND cells, leading to the effective elimination of impaired mitochondria. This process resulted in a reduction in the generation of reactive oxygen species within the mitochondria, restoration of mitochondrial membrane potential, and inhibition of the NLRP3 inflammasome activation. Moreover, in a mouse model of LPS-induced endometritis, melatonin treatment repressed the expression of pro-inflammatory cytokines by ELISA and qRT-PCR, alleviated pathological changes by hematoxylin-eosin staining (H&E), and inhibited myeloperoxidase (MPO) activity. In conclusion, our study showed that melatonin inhibited the activation of the NLRP3 inflammasome in BEND cells through autophagy, which may provide a novel therapeutic strategy for bovine endometritis.
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Affiliation(s)
- Yujin Gao
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China;
- Gansu Key Laboratory of Animal Generational Physiology and Reproductive Regulation, Lanzhou 730070, China; (Y.L.); (J.W.); (X.Z.); (D.Y.); (X.D.)
| | - Yina Li
- Gansu Key Laboratory of Animal Generational Physiology and Reproductive Regulation, Lanzhou 730070, China; (Y.L.); (J.W.); (X.Z.); (D.Y.); (X.D.)
| | - Jiamian Wang
- Gansu Key Laboratory of Animal Generational Physiology and Reproductive Regulation, Lanzhou 730070, China; (Y.L.); (J.W.); (X.Z.); (D.Y.); (X.D.)
| | - Xijun Zhang
- Gansu Key Laboratory of Animal Generational Physiology and Reproductive Regulation, Lanzhou 730070, China; (Y.L.); (J.W.); (X.Z.); (D.Y.); (X.D.)
| | - Dan Yao
- Gansu Key Laboratory of Animal Generational Physiology and Reproductive Regulation, Lanzhou 730070, China; (Y.L.); (J.W.); (X.Z.); (D.Y.); (X.D.)
| | - Xuanpan Ding
- Gansu Key Laboratory of Animal Generational Physiology and Reproductive Regulation, Lanzhou 730070, China; (Y.L.); (J.W.); (X.Z.); (D.Y.); (X.D.)
| | - Xingxu Zhao
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China;
- Gansu Key Laboratory of Animal Generational Physiology and Reproductive Regulation, Lanzhou 730070, China; (Y.L.); (J.W.); (X.Z.); (D.Y.); (X.D.)
| | - Yong Zhang
- College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China;
- Gansu Key Laboratory of Animal Generational Physiology and Reproductive Regulation, Lanzhou 730070, China; (Y.L.); (J.W.); (X.Z.); (D.Y.); (X.D.)
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12
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Bar O, Ebenau L, Weiner K, Mintz M, Boles RG. Whole exome/genome sequencing in cyclic vomiting syndrome reveals multiple candidate genes, suggesting a model of elevated intracellular cations and mitochondrial dysfunction. Front Neurol 2023; 14:1151835. [PMID: 37234784 PMCID: PMC10208274 DOI: 10.3389/fneur.2023.1151835] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Accepted: 04/03/2023] [Indexed: 05/28/2023] Open
Abstract
Objective To utilize whole exome or genome sequencing and the scientific literature for identifying candidate genes for cyclic vomiting syndrome (CVS), an idiopathic migraine variant with paroxysmal nausea and vomiting. Methods A retrospective chart review of 80 unrelated participants, ascertained by a quaternary care CVS specialist, was conducted. Genes associated with paroxysmal symptoms were identified querying the literature for genes associated with dominant cases of intermittent vomiting or both discomfort and disability; among which the raw genetic sequence was reviewed. "Qualifying" variants were defined as coding, rare, and conserved. Additionally, "Key Qualifying" variants were Pathogenic/Likely Pathogenic, or "Clinical" based upon the presence of a corresponding diagnosis. Candidate association to CVS was based on a point system. Results Thirty-five paroxysmal genes were identified per the literature review. Among these, 12 genes were scored as "Highly likely" (SCN4A, CACNA1A, CACNA1S, RYR2, TRAP1, MEFV) or "Likely" (SCN9A, TNFRSF1A, POLG, SCN10A, POGZ, TRPA1) CVS related. Nine additional genes (OTC, ATP1A3, ATP1A2, GFAP, SLC2A1, TUBB3, PPM1D, CHAMP1, HMBS) had sufficient evidence in the literature but not from our study participants. Candidate status for mitochondrial DNA was confirmed by the literature and our study data. Among the above-listed 22 CVS candidate genes, a Key Qualifying variant was identified in 31/80 (34%), and any Qualifying variant was present in 61/80 (76%) of participants. These findings were highly statistically significant (p < 0.0001, p = 0.004, respectively) compared to an alternative hypothesis/control group regarding brain neurotransmitter receptor genes. Additional, post-analyses, less-intensive review of all genes (exome) outside our paroxysmal genes identified 13 additional genes as "Possibly" CVS related. Conclusion All 22 CVS candidate genes are associated with either cation transport or energy metabolism (14 directly, 8 indirectly). Our findings suggest a cellular model in which aberrant ion gradients lead to mitochondrial dysfunction, or vice versa, in a pathogenic vicious cycle of cellular hyperexcitability. Among the non-paroxysmal genes identified, 5 are known causes of peripheral neuropathy. Our model is consistent with multiple current hypotheses of CVS.
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Affiliation(s)
- Omri Bar
- NeurAbilities Healthcare, Voorhees, NJ, United States
| | - Laurie Ebenau
- NeurAbilities Healthcare, Voorhees, NJ, United States
| | - Kellee Weiner
- NeurAbilities Healthcare, Voorhees, NJ, United States
| | - Mark Mintz
- NeurAbilities Healthcare, Voorhees, NJ, United States
| | - Richard G. Boles
- NeurAbilities Healthcare, Voorhees, NJ, United States
- NeuroNeeds, Old Lyme, CT, United States
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13
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Casanova A, Wevers A, Navarro-Ledesma S, Pruimboom L. Mitochondria: It is all about energy. Front Physiol 2023; 14:1114231. [PMID: 37179826 PMCID: PMC10167337 DOI: 10.3389/fphys.2023.1114231] [Citation(s) in RCA: 28] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 03/29/2023] [Indexed: 05/15/2023] Open
Abstract
Mitochondria play a key role in both health and disease. Their function is not limited to energy production but serves multiple mechanisms varying from iron and calcium homeostasis to the production of hormones and neurotransmitters, such as melatonin. They enable and influence communication at all physical levels through interaction with other organelles, the nucleus, and the outside environment. The literature suggests crosstalk mechanisms between mitochondria and circadian clocks, the gut microbiota, and the immune system. They might even be the hub supporting and integrating activity across all these domains. Hence, they might be the (missing) link in both health and disease. Mitochondrial dysfunction is related to metabolic syndrome, neuronal diseases, cancer, cardiovascular and infectious diseases, and inflammatory disorders. In this regard, diseases such as cancer, Alzheimer's, Parkinson's, amyotrophic lateral sclerosis (ALS), chronic fatigue syndrome (CFS), and chronic pain are discussed. This review focuses on understanding the mitochondrial mechanisms of action that allow for the maintenance of mitochondrial health and the pathways toward dysregulated mechanisms. Although mitochondria have allowed us to adapt to changes over the course of evolution, in turn, evolution has shaped mitochondria. Each evolution-based intervention influences mitochondria in its own way. The use of physiological stress triggers tolerance to the stressor, achieving adaptability and resistance. This review describes strategies that could recover mitochondrial functioning in multiple diseases, providing a comprehensive, root-cause-focused, integrative approach to recovering health and treating people suffering from chronic diseases.
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Affiliation(s)
- Amaloha Casanova
- Department of Physiotherapy, University of Granada, Granada, Spain
- Faculty of Health Sciences, Melilla, Spain
- PNI Europe, The Hague, Netherlands
- Chair of Clinical Psychoneuroimmunology, University of Granada and PNI Europe, Granada, Spain
| | - Anne Wevers
- Department of Physiotherapy, University of Granada, Granada, Spain
- Faculty of Health Sciences, Melilla, Spain
- PNI Europe, The Hague, Netherlands
- Chair of Clinical Psychoneuroimmunology, University of Granada and PNI Europe, Granada, Spain
| | - Santiago Navarro-Ledesma
- Department of Physiotherapy, University of Granada, Granada, Spain
- Faculty of Health Sciences, Melilla, Spain
- PNI Europe, The Hague, Netherlands
- Chair of Clinical Psychoneuroimmunology, University of Granada and PNI Europe, Granada, Spain
| | - Leo Pruimboom
- PNI Europe, The Hague, Netherlands
- Chair of Clinical Psychoneuroimmunology, University of Granada and PNI Europe, Granada, Spain
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Aranda-Martínez P, Fernández-Martínez J, Ramírez-Casas Y, Rodríguez-Santana C, Rusanova I, Escames G, Acuña-Castroviejo D. Chronodisruption and Loss of Melatonin Rhythm, Associated with Alterations in Daily Motor Activity and Mitochondrial Dynamics in Parkinsonian Zebrafish, Are Corrected by Melatonin Treatment. Antioxidants (Basel) 2023; 12:antiox12040954. [PMID: 37107331 PMCID: PMC10136267 DOI: 10.3390/antiox12040954] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 04/01/2023] [Accepted: 04/13/2023] [Indexed: 04/29/2023] Open
Abstract
Beyond sleep/wake, clock genes regulate the daily rhythms of melatonin production, motor activity, innate immunity, and mitochondrial dynamics, among others. All these rhythms are affected in Parkinson's disease (PD), suggesting that chronodisruption may be an early stage of the disease. The aim of this study was to evaluate the connection between clock genes and these rhythms in PD, and whether melatonin administration reestablished the normal clock function. Parkinsonism was induced with 600 μM MPTP (N-methyl-4-phenyl-1,2,3,6-tetrahydropyridine) in 24-120 h post fertilization (hpf) zebrafish embryos and melatonin was administered at a dose of 1 μM. Day-night melatonin rhythm disappeared in MPTP-treated embryos, which showed an advance in the activity phase in parallel with changes in the rhythm of clock genes. An alteration in the fission-to-fusion mitochondrial dynamics was also detected in parkinsonian embryos, increasing the former and leading to apoptosis. Melatonin administration to MPTP-treated embryos fully restored the circadian system, including the rhythms of clock genes, motor activity, melatonin rhythm, and mitochondrial dynamics, and decreasing apoptosis. Because clock-controlled rhythms such as sleep/wake alterations are early events in PD, the data here reported may point to chronodisruption as one initial pathophysiological event of the disease.
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Affiliation(s)
- 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
| | - 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
| | - 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
| | - César Rodríguez-Santana
- 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
| | - Iryna Rusanova
- 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
- Centro de Investigación Biomédica en Red Fragilidad y Envejecimiento Saludable (CIBERFES), 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
- Centro de Investigación Biomédica en Red Fragilidad y Envejecimiento Saludable (CIBERFES), Ibs.Granada, Hospital Universitario San Cecilio, 18016 Granada, 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
- Centro de Investigación Biomédica en Red Fragilidad y Envejecimiento Saludable (CIBERFES), Ibs.Granada, Hospital Universitario San Cecilio, 18016 Granada, Spain
- UGC de Laboratorios Clínicos, Hospital Universitario San Cecilio, 18016 Granada, Spain
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15
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Reiter RJ, Sharma R, Cucielo MS, Tan DX, Rosales-Corral S, Gancitano G, de Almeida Chuffa LG. Brain washing and neural health: role of age, sleep, and the cerebrospinal fluid melatonin rhythm. Cell Mol Life Sci 2023; 80:88. [PMID: 36917314 PMCID: PMC11072793 DOI: 10.1007/s00018-023-04736-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 02/02/2023] [Accepted: 02/24/2023] [Indexed: 03/16/2023]
Abstract
The brain lacks a classic lymphatic drainage system. How it is cleansed of damaged proteins, cellular debris, and molecular by-products has remained a mystery for decades. Recent discoveries have identified a hybrid system that includes cerebrospinal fluid (CSF)-filled perivascular spaces and classic lymph vessels in the dural covering of the brain and spinal cord that functionally cooperate to remove toxic and non-functional trash from the brain. These two components functioning together are referred to as the glymphatic system. We propose that the high levels of melatonin secreted by the pineal gland directly into the CSF play a role in flushing pathological molecules such as amyloid-β peptide (Aβ) from the brain via this network. Melatonin is a sleep-promoting agent, with waste clearance from the CNS being highest especially during slow wave sleep. Melatonin is also a potent and versatile antioxidant that prevents neural accumulation of oxidatively-damaged molecules which contribute to neurological decline. Due to its feedback actions on the suprachiasmatic nucleus, CSF melatonin rhythm functions to maintain optimal circadian rhythmicity, which is also critical for preserving neurocognitive health. Melatonin levels drop dramatically in the frail aged, potentially contributing to neurological failure and dementia. Melatonin supplementation in animal models of Alzheimer's disease (AD) defers Aβ accumulation, enhances its clearance from the CNS, and prolongs animal survival. In AD patients, preliminary data show that melatonin use reduces neurobehavioral signs such as sundowning. Finally, melatonin controls the mitotic activity of neural stem cells in the subventricular zone, suggesting its involvement in neuronal renewal.
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Affiliation(s)
- Russel J Reiter
- Department of Cell Systems and Anatomy, Long School of Medicine, UT Health San Antonio, San Antonio, TX, 78229, USA.
| | - Ramaswamy Sharma
- Department of Cell Systems and Anatomy, Long School of Medicine, UT Health San Antonio, San Antonio, TX, 78229, USA.
| | - Maira Smaniotto Cucielo
- Department of Structural and Functional Biology-IBB/UNESP, Institute of Biosciences of Botucatu, Universidade Estadual Paulista, Botucatu, São Paulo, 18618-689, Brazil
| | | | - Sergio Rosales-Corral
- Centro de Investigacion Biomedica de Occidente, Instituto Mexicano del Seguro Social, Guadalajara, Mexico
| | - Giuseppe Gancitano
- 1st "Tuscania" Paratrooper Regiment, Italian Ministry of Defense, 57127, Leghorn, Italy
| | - Luiz Gustavo de Almeida Chuffa
- Department of Structural and Functional Biology-IBB/UNESP, Institute of Biosciences of Botucatu, Universidade Estadual Paulista, Botucatu, São Paulo, 18618-689, Brazil
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16
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Mansilla-Roselló A, Hernández-Magdalena J, Domínguez-Bastante M, Olmedo-Martín C, Comino-Pardo A, Escames G, Acuña-Castroviejo D. A phase II, single-center, double-blind, randomized placebo-controlled trial to explore the efficacy and safety of intravenous melatonin in surgical patients with severe sepsis admitted to the intensive care unit. J Pineal Res 2023; 74:e12845. [PMID: 36428216 PMCID: PMC10078138 DOI: 10.1111/jpi.12845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 11/09/2022] [Accepted: 11/21/2022] [Indexed: 11/27/2022]
Abstract
To determine whether IV melatonin therapy improves redox status and inflammatory responses in surgical patients with severe sepsis, a unicenter, phase II double-blind, randomized, placebo-controlled trial was carried out. The study included patients with severe sepsis marked by infectious systemic inflammatory response syndrome (SIRS), associated with organ dysfunction, hypoperfusion or hypotension requiring surgical intervention. IV melatonin at a daily dose of 60 mg, which was dissolved in 500 ml of 5% dextrose serum, was continuously administered to the patients for over 30 min starting on the day of the diagnoses during a 5-day period. A total of 14 patients received a placebo treatment and 15 melatonin doses. Redox status decreased in melatonin-treated patients during the 5 days of treatment as compared to the placebo-treated patients. Procalcitonin performed better in the melatonin group, whose neutrophil to lymphocyte ratio was also significantly reduced, resulting in an improved evolution of the disease. Moreover, hospital stays decreased by 19.60% from 26.64 days for the placebo group to 21.42 days for the melatonin group. The placebo group recorded five mortalities, as compared to three for the melatonin group. IV melatonin administration improved the course of the disease in surgical patients with severe sepsis, with no side effects. Additional studies with higher doses of melatonin and a long duration of therapy need to be carried out to assess its clinical use.
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Affiliation(s)
- Alfonso Mansilla-Roselló
- General and Digestive Surgery Department, Virgen de las Nieves University Hospital, Granada, Spain
| | | | | | - Carmen Olmedo-Martín
- Experimental Surgery Unit, Virgen de las Nieves University Hospital, Granada, Spain
| | - Ana Comino-Pardo
- Experimental Surgery Unit, Virgen de las Nieves University Hospital, Granada, Spain
| | - Germaine Escames
- Departamento de Fisiología, Centro de Investigación Biomédica, Instituto de Biotecnología, Facultad de Medicina, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, Granada, Spain
- Centro de Investigación Biomédica en Red de Fragilidad y Envejecimiento Saludable (CIBERfes, ISCIII), Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, Granada, Spain
- Instituto Biosanitario de Granada (Ibs.Granada), Hospital Universitario San Cecilio, Granada, Spain
| | - Darío Acuña-Castroviejo
- Departamento de Fisiología, Centro de Investigación Biomédica, Instituto de Biotecnología, Facultad de Medicina, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, Granada, Spain
- Centro de Investigación Biomédica en Red de Fragilidad y Envejecimiento Saludable (CIBERfes, ISCIII), Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, Granada, Spain
- Instituto Biosanitario de Granada (Ibs.Granada), Hospital Universitario San Cecilio, Granada, Spain
- UGC de Laboratorios Clínicos, Hospital Universitario San Cecilio, Granada, Spain
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17
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Role of Melatonin in Cancer: Effect on Clock Genes. Int J Mol Sci 2023; 24:ijms24031919. [PMID: 36768253 PMCID: PMC9916653 DOI: 10.3390/ijms24031919] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/15/2023] [Accepted: 01/17/2023] [Indexed: 01/21/2023] Open
Abstract
The circadian clock is a regulatory system, with a periodicity of approximately 24 h, that generates rhythmic changes in many physiological processes. Increasing evidence links chronodisruption with aberrant functionality in clock gene expression, resulting in multiple diseases, including cancer. In this context, tumor cells have an altered circadian machinery compared to normal cells, which deregulates the cell cycle, repair mechanisms, energy metabolism and other processes. Melatonin is the main hormone produced by the pineal gland, whose production and secretion oscillates in accordance with the light:dark cycle. In addition, melatonin regulates the expression of clock genes, including those in cancer cells, which could play a key role in the numerous oncostatic effects of this hormone. This review aims to describe and clarify the role of clock genes in cancer, as well as the possible mechanisms of the action of melatonin through which it regulates the expression of the tumor's circadian machinery, in order to propose future anti-neoplastic clinical treatments.
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18
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Anderson G. Amyotrophic Lateral Sclerosis Pathoetiology and Pathophysiology: Roles of Astrocytes, Gut Microbiome, and Muscle Interactions via the Mitochondrial Melatonergic Pathway, with Disruption by Glyphosate-Based Herbicides. Int J Mol Sci 2022; 24:ijms24010587. [PMID: 36614029 PMCID: PMC9820185 DOI: 10.3390/ijms24010587] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 12/23/2022] [Accepted: 12/28/2022] [Indexed: 12/31/2022] Open
Abstract
The pathoetiology and pathophysiology of motor neuron loss in amyotrophic lateral sclerosis (ALS) are still to be determined, with only a small percentage of ALS patients having a known genetic risk factor. The article looks to integrate wider bodies of data on the biological underpinnings of ALS, highlighting the integrative role of alterations in the mitochondrial melatonergic pathways and systemic factors regulating this pathway across a number of crucial hubs in ALS pathophysiology, namely glia, gut, and the muscle/neuromuscular junction. It is proposed that suppression of the mitochondrial melatonergic pathway underpins changes in muscle brain-derived neurotrophic factor, and its melatonergic pathway mimic, N-acetylserotonin, leading to a lack of metabolic trophic support at the neuromuscular junction. The attenuation of the melatonergic pathway in astrocytes prevents activation of toll-like receptor agonists-induced pro-inflammatory transcription factors, NF-kB, and yin yang 1, from having a built-in limitation on inflammatory induction that arises from their synchronized induction of melatonin release. Such maintained astrocyte activation, coupled with heightened microglia reactivity, is an important driver of motor neuron susceptibility in ALS. Two important systemic factors, gut dysbiosis/permeability and pineal melatonin mediate many of their beneficial effects via their capacity to upregulate the mitochondrial melatonergic pathway in central and systemic cells. The mitochondrial melatonergic pathway may be seen as a core aspect of cellular function, with its suppression increasing reactive oxygen species (ROS), leading to ROS-induced microRNAs, thereby altering the patterning of genes induced. It is proposed that the increased occupational risk of ALS in farmers, gardeners, and sportsmen and women is intimately linked to exposure, whilst being physically active, to the widely used glyphosate-based herbicides. This has numerous research and treatment implications.
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Affiliation(s)
- George Anderson
- CRC Scotland & London, Eccleston Square, London SW1V 1PG, UK
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19
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Role of Omega-3 Fatty Acids as Non-Photic Zeitgebers and Circadian Clock Synchronizers. Int J Mol Sci 2022; 23:ijms232012162. [DOI: 10.3390/ijms232012162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 10/09/2022] [Accepted: 10/10/2022] [Indexed: 11/16/2022] Open
Abstract
Omega-3 fatty acids (ω-3 FAs) are well-known for their actions on immune/inflammatory and neurological pathways, functions that are also under circadian clock regulation. The daily photoperiod represents the primary circadian synchronizer (‘zeitgeber’), although diverse studies have pointed towards an influence of dietary FAs on the biological clock. A comprehensive literature review was conducted following predefined selection criteria with the aim of updating the evidence on the molecular mechanisms behind circadian rhythm regulation by ω-3 FAs. We collected preclinical and clinical studies, systematic reviews, and metanalyses focused on the effect of ω-3 FAs on circadian rhythms. Twenty animal (conducted on rodents and piglets) and human trials and one observational study providing evidence on the regulation of neurological, inflammatory/immune, metabolic, reproductive, cardiovascular, and biochemical processes by ω-3 FAs via clock genes were discussed. The evidence suggests that ω-3 FAs may serve as non-photic zeitgebers and prove therapeutically beneficial for circadian disruption-related pathologies. Future work should focus on the role of clock genes as a target for the therapeutic use of ω-3 FAs in inflammatory and neurological disorders, as well as on the bidirectional association between the molecular clock and ω-3 FAs.
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20
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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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21
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Zainumi CM, Siregar GA, Wijaya DW, Ichwan M. Comparison enteral superoxide dismutase 1 IU and 5 IU from Cucumis melo L.C extract combined with gliadin as an antioxidant and anti-inflammatory in LPS-Induced sepsis model rats. Heliyon 2022; 8:e10236. [PMID: 36082333 PMCID: PMC9445283 DOI: 10.1016/j.heliyon.2022.e10236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 05/09/2022] [Accepted: 08/05/2022] [Indexed: 11/15/2022] Open
Abstract
Sepsis is a major cause of death in intensive care units whose development is supported by an imbalance of oxidative stress and antioxidant. Superoxide dismutase (SOD) is a primer endogen antioxidant that prevents reactive oxygen species (ROS). Extensive studies on animals and humans have examined Cucumis melo L.C, a cantaloupe rich in SOD, and its combination with gliadin. The studies aimed to determine the effect of enteral administration of Cucumis melo L.C. gliadin (CME-gliadin) 28 days before inducing sepsis in rats. This experimental study aimed to compare four groups of male Wistar rats, including negative and positive control rats and those supplemented with SOD CME-gliadin 1 IU/day and SOD CME-gliadin 5 IU/day. All rats were given the same standard, except the supplementation for 28 days. Sepsis was induced by intraperitoneal injection of LPS 10 mg/kg. Enteral administration of SOD – gliadin extract of CME-gliadin for 28 days was used as antioxidant prophylaxis against oxidative stress due to sepsis. The results showed that enteral administration of CME-gliadin of 1 IU/day and 5 IU/day significantly increased SOD levels based on examination after 14 and 28 days. Also, it significantly decreased MDA (p < 0.001), TNF-α (p < 0.001), and lactate levels in rats induced by sepsis. However, the increase in lactate levels was above >1.64 mmol/l, indicating a high mortality rate. There was no significant difference in SOD, MDA, TNF-α, and Lactate levels between SOD 1 IU and SOD 5 IU. This descriptive data show that SOD 5 IU has a better result in MDA, TNF-α, and Lactate levels than SOD 1 IU.
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Affiliation(s)
- Cut Meliza Zainumi
- Department of Anesthesiology and Intensive Care, Faculty of Medicine, Universitas Sumatera Utara, Medan, Indonesia
- Corresponding author.
| | - Gontar Alamsyah Siregar
- Department of Internal Medicine, Faculty of Medicine, Universitas Sumatera Utara, Medan, Indonesia
| | - Dadik Wahyu Wijaya
- Department of Anesthesiology and Intensive Care, Faculty of Medicine, Universitas Sumatera Utara, Medan, Indonesia
| | - Muhammad Ichwan
- Department of Pharmacology and Therapeutic, Faculty of Medicine, Universitas Sumatera Utara, Medan, Indonesia
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22
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Schiff JE, Vieira CLZ, Garshick E, Wang V, Blomberg A, Gold DR, Schwartz J, Tracy SM, Vokonas P, Koutrakis P. The role of solar and geomagnetic activity in endothelial activation and inflammation in the NAS cohort. PLoS One 2022; 17:e0268700. [PMID: 35881632 PMCID: PMC9321765 DOI: 10.1371/journal.pone.0268700] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 05/05/2022] [Indexed: 01/08/2023] Open
Abstract
This study investigated the associations between solar and geomagnetic activity and circulating biomarkers of systemic inflammation and endothelial activation in the Normative Aging Study (NAS) cohort. Mixed effects models with moving day averages from day 0 to day 28 were used to study the associations between solar activity (sunspot number (SSN), interplanetary magnetic field (IMF)), geomagnetic activity (planetary K index (Kp index), and various inflammatory and endothelial markers. Biomarkers included intracellular adhesion molecule-1 (sICAM-1), vascular cell adhesion molecule-1 (sVCAM-1), C-reactive protein (CRP), and fibrinogen. After adjusting for demographic and meteorological variables, we observed significant positive associations between sICAM-1 and sVCAM-1 concentrations and solar and geomagnetic activity parameters: IMF, SSN, and Kp. Additionally, a negative association was observed between fibrinogen and Kp index and a positive association was observed for CRP and SSN. These results demonstrate that solar and geomagnetic activity might be upregulating endothelial activation and inflammation.
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Affiliation(s)
- Jessica E. Schiff
- Department of Environmental Health, Harvard T.H. Chan School of Public Heath, Boston, MA, United States of America
- * E-mail:
| | - Carolina L. Z. Vieira
- Department of Environmental Health, Harvard T.H. Chan School of Public Heath, Boston, MA, United States of America
| | - Eric Garshick
- Pulmonary, Allergy, Sleep, and Critical Care Medicine Section, VA Boston Healthcare System, Boston, MA, United States of America
- Channing Division of Network Medicine, Brigham and Women’s Hospital, Boston, MA, United States of America
- Harvard Medical School, Boston, MA, United States of America
| | - Veronica Wang
- Department of Environmental Health, Harvard T.H. Chan School of Public Heath, Boston, MA, United States of America
| | - Annelise Blomberg
- Department of Environmental Health, Harvard T.H. Chan School of Public Heath, Boston, MA, United States of America
| | - Diane R. Gold
- Professor of Medicine, Harvard Medical School, Boston, MA, United States of America
- Professor of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, United States of America
| | - Joel Schwartz
- Department of Environmental Health, Harvard T.H. Chan School of Public Heath, Boston, MA, United States of America
| | - Samantha M. Tracy
- Department of Environmental Health, Harvard T.H. Chan School of Public Heath, Boston, MA, United States of America
| | - Pantel Vokonas
- VA Normative Aging Study, Veterans Affairs Boston Healthcare System and the Department of Medicine, Boston University School of Medicine, Boston, MA, United States of America
| | - Petros Koutrakis
- Department of Environmental Health, Harvard T.H. Chan School of Public Heath, Boston, MA, United States of America
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23
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Abdel Nasser Atia G, Shalaby HK, Zehravi M, Ghobashy MM, Ahmad Z, Khan FS, Dey A, Rahman MH, Joo SW, Barai HR, Cavalu S. Locally Applied Repositioned Hormones for Oral Bone and Periodontal Tissue Engineering: A Narrative Review. Polymers (Basel) 2022; 14:polym14142964. [PMID: 35890740 PMCID: PMC9319147 DOI: 10.3390/polym14142964] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 07/16/2022] [Accepted: 07/18/2022] [Indexed: 12/25/2022] Open
Abstract
Bone and periodontium are tissues that have a unique capacity to repair from harm. However, replacing or regrowing missing tissues is not always effective, and it becomes more difficult as the defect grows larger. Because of aging and the increased prevalence of debilitating disorders such as diabetes, there is a considerable increase in demand for orthopedic and periodontal surgical operations, and successful techniques for tissue regeneration are still required. Even with significant limitations, such as quantity and the need for a donor area, autogenous bone grafts remain the best solution. Topical administration methods integrate osteoconductive biomaterial and osteoinductive chemicals as hormones as alternative options. This is a promising method for removing the need for autogenous bone transplantation. Furthermore, despite enormous investigation, there is currently no single approach that can reproduce all the physiologic activities of autogenous bone transplants. The localized bioengineering technique uses biomaterials to administer different hormones to capitalize on the host’s regeneration capacity and capability, as well as resemble intrinsic therapy. The current study adds to the comprehension of the principle of hormone redirection and its local administration in both bone and periodontal tissue engineering.
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Affiliation(s)
- Gamal Abdel Nasser Atia
- Department of Oral Medicine, Periodontology, and Diagnosis, Faculty of Dentistry, Suez Canal University, Ismailia P.O. Box 41522, Egypt
- Correspondence: (G.A.N.A.); (H.K.S.); (H.R.B.); (S.C.)
| | - Hany K. Shalaby
- Department of Oral Medicine, Periodontology and Oral Diagnosis, Faculty of Dentistry, Suez University, Suez P.O. Box 43512, Egypt
- Correspondence: (G.A.N.A.); (H.K.S.); (H.R.B.); (S.C.)
| | - Mehrukh Zehravi
- Department of Clinical Pharmacy Girls Section, Prince Sattam Bin Abdul Aziz University, Al-Kharj 11942, Saudi Arabia;
| | - Mohamed Mohamady Ghobashy
- Radiation Research of Polymer Chemistry Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority, P.O. Box 8029, Cairo 13759, Egypt;
| | - Zubair Ahmad
- Unit of Bee Research and Honey Production, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia;
- Biology Department, College of Arts and Sciences, Dehran Al-Junub, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia;
| | - Farhat S. Khan
- Biology Department, College of Arts and Sciences, Dehran Al-Junub, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia;
| | - Abhijit Dey
- Department of Life Sciences, Presidency University, Kolkata 700073, India;
| | - Md. Habibur Rahman
- Department of Global Medical Science, Wonju College of Medicine, Yonsei University, Wonju 26426, Korea;
| | - Sang Woo Joo
- School of Mechanical and IT Engineering, Yeungnam University, Gyeongsan 38541, Korea;
| | - Hasi Rani Barai
- School of Mechanical and IT Engineering, Yeungnam University, Gyeongsan 38541, Korea;
- Correspondence: (G.A.N.A.); (H.K.S.); (H.R.B.); (S.C.)
| | - Simona Cavalu
- Faculty of Medicine and Pharmacy, University of Oradea, Piata 1 Decembrie 10, 410087 Oradea, Romania
- Correspondence: (G.A.N.A.); (H.K.S.); (H.R.B.); (S.C.)
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24
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The Zebrafish, an Outstanding Model for Biomedical Research in the Field of Melatonin and Human Diseases. Int J Mol Sci 2022; 23:ijms23137438. [PMID: 35806441 PMCID: PMC9267299 DOI: 10.3390/ijms23137438] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 06/30/2022] [Accepted: 07/01/2022] [Indexed: 02/06/2023] Open
Abstract
The zebrafish has become an excellent model for the study of human diseases because it offers many advantages over other vertebrate animal models. The pineal gland, as well as the biological clock and circadian rhythms, are highly conserved in zebrafish, and melatonin is produced in the pineal gland and in most organs and tissues of the body. Zebrafish have several copies of the clock genes and of aanat and asmt genes, the latter involved in melatonin synthesis. As in mammals, melatonin can act through its membrane receptors, as with zebrafish, and through mechanisms that are independent of receptors. Pineal melatonin regulates peripheral clocks and the circadian rhythms of the body, such as the sleep/wake rhythm, among others. Extrapineal melatonin functions include antioxidant activity, inducing the endogenous antioxidants enzymes, scavenging activity, removing free radicals, anti-inflammatory activity through the regulation of the NF-κB/NLRP3 inflammasome pathway, and a homeostatic role in mitochondria. In this review, we introduce the utility of zebrafish to analyze the mechanisms of action of melatonin. The data here presented showed that the zebrafish is a useful model to study human diseases and that melatonin exerts beneficial effects on many pathophysiological processes involved in these diseases.
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25
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Fernández-Ortiz M, Sayed RKA, Román-Montoya Y, de Lama MÁR, Fernández-Martínez J, Ramírez-Casas Y, Florido-Ruiz J, Rusanova I, Escames G, Acuña-Castroviejo D. Age and Chronodisruption in Mouse Heart: Effect of the NLRP3 Inflammasome and Melatonin Therapy. Int J Mol Sci 2022; 23:ijms23126846. [PMID: 35743288 PMCID: PMC9224376 DOI: 10.3390/ijms23126846] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 06/13/2022] [Accepted: 06/18/2022] [Indexed: 02/04/2023] Open
Abstract
Age and age-dependent inflammation are two main risk factors for cardiovascular diseases. Aging can also affect clock gene-related impairments such as chronodisruption and has been linked to a decline in melatonin synthesis and aggravation of the NF-κB/NLRP3 innate immune response known as inflammaging. The molecular drivers of these mechanisms remain unknown. This study investigated the impact of aging and NLRP3 expression on the cardiac circadian system, and the actions of melatonin as a potential therapy to restore daily rhythms by mitigating inflammaging. We analyzed the circadian expression and rhythmicity of clock genes in heart tissue of wild-type and NLRP3-knockout mice at 3, 12, and 24 months of age, with and without melatonin treatment. Our results support that aging, NLRP3 inflammasome, and melatonin affected the cardiac clock genes expression, except for Rev-erbα, which was not influenced by genotype. Aging caused small phase changes in Clock, loss of rhythmicity in Per2 and Rorα, and mesor dampening of Clock, Bmal1, and Per2. NLRP3 inflammasome influenced the acrophase of Clock, Per2, and Rorα. Melatonin restored the acrophase and the rhythm of clock genes affected by age or NLRP3 activation. The administration of melatonin re-established murine cardiac homeostasis by reversing age-associated chronodisruption. Altogether, these results highlight new findings about the effects aging and NLRP3 inflammasome have on clock genes in cardiac tissue, pointing to continuous melatonin as a promising therapy to placate inflammaging and restore circadian rhythm in heart muscle. Additionally, light microscopy analysis showed age-related morphological impairments in cardiomyocytes, which were less severe in mice lacking NLRP3. Melatonin supplementation preserved the structure of cardiac muscle fibers in all experimental groups.
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Affiliation(s)
- Marisol Fernández-Ortiz
- Departamento de Fisiología, Facultad de Medicina, Instituto de Biotecnología, Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, 18016 Granada, Spain; (M.F.-O.); (R.K.A.S.); (J.F.-M.); (Y.R.-C.); (J.F.-R.); (I.R.); (G.E.)
- Department of Pediatrics, Division of Hematology-Oncology, Greehey Children’s Cancer Research Institute, University of Texas Health Science Center San Antonio, San Antonio, TX 78229, USA
- Centro de Investigación Biomédica en Red Fragilidad y Envejecimiento Saludable (CIBERfes), Instituto de Investigación Biosanitaria de Granada (Ibs), 18012 Granada, Spain
| | - Ramy K. A. Sayed
- Departamento de Fisiología, Facultad de Medicina, Instituto de Biotecnología, Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, 18016 Granada, Spain; (M.F.-O.); (R.K.A.S.); (J.F.-M.); (Y.R.-C.); (J.F.-R.); (I.R.); (G.E.)
- Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Sohag University, Sohag 82524, Egypt
| | - Yolanda Román-Montoya
- Departamento de Estadística e Investigación Operativa, Facultad de Ciencias, Universidad de Granada, 18071 Granada, Spain;
| | - María Ángeles Rol de Lama
- Chronobiology Lab, Department of Physiology, College of Biology, University of Murcia, Mare Nostrum Campus, IUIE, IMIB–Arrixaca, 30100 Murcia, Spain;
| | - José Fernández-Martínez
- Departamento de Fisiología, Facultad de Medicina, Instituto de Biotecnología, Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, 18016 Granada, Spain; (M.F.-O.); (R.K.A.S.); (J.F.-M.); (Y.R.-C.); (J.F.-R.); (I.R.); (G.E.)
| | - Yolanda Ramírez-Casas
- Departamento de Fisiología, Facultad de Medicina, Instituto de Biotecnología, Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, 18016 Granada, Spain; (M.F.-O.); (R.K.A.S.); (J.F.-M.); (Y.R.-C.); (J.F.-R.); (I.R.); (G.E.)
| | - Javier Florido-Ruiz
- Departamento de Fisiología, Facultad de Medicina, Instituto de Biotecnología, Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, 18016 Granada, Spain; (M.F.-O.); (R.K.A.S.); (J.F.-M.); (Y.R.-C.); (J.F.-R.); (I.R.); (G.E.)
| | - Iryna Rusanova
- Departamento de Fisiología, Facultad de Medicina, Instituto de Biotecnología, Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, 18016 Granada, Spain; (M.F.-O.); (R.K.A.S.); (J.F.-M.); (Y.R.-C.); (J.F.-R.); (I.R.); (G.E.)
- Centro de Investigación Biomédica en Red Fragilidad y Envejecimiento Saludable (CIBERfes), Instituto de Investigación Biosanitaria de Granada (Ibs), 18012 Granada, Spain
| | - Germaine Escames
- Departamento de Fisiología, Facultad de Medicina, Instituto de Biotecnología, Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, 18016 Granada, Spain; (M.F.-O.); (R.K.A.S.); (J.F.-M.); (Y.R.-C.); (J.F.-R.); (I.R.); (G.E.)
- Centro de Investigación Biomédica en Red Fragilidad y Envejecimiento Saludable (CIBERfes), Instituto de Investigación Biosanitaria de Granada (Ibs), 18012 Granada, Spain
| | - Darío Acuña-Castroviejo
- Departamento de Fisiología, Facultad de Medicina, Instituto de Biotecnología, Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, 18016 Granada, Spain; (M.F.-O.); (R.K.A.S.); (J.F.-M.); (Y.R.-C.); (J.F.-R.); (I.R.); (G.E.)
- Centro de Investigación Biomédica en Red Fragilidad y Envejecimiento Saludable (CIBERfes), Instituto de Investigación Biosanitaria de Granada (Ibs), 18012 Granada, Spain
- UGC de Laboratorios Clínicos, Hospital Universitario San Cecilio, 18016 Granada, Spain
- Correspondence: ; Tel.: +34-958241000 (ext. 20196)
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Reiter RJ, Sharma R, Rosales-Corral S, de Campos Zuccari DAP, de Almeida Chuffa LG. Melatonin: A mitochondrial resident with a diverse skill set. Life Sci 2022; 301:120612. [PMID: 35523285 DOI: 10.1016/j.lfs.2022.120612] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 04/25/2022] [Accepted: 04/30/2022] [Indexed: 12/12/2022]
Abstract
Melatonin is an ancient molecule that originated in bacteria. When these prokaryotes were phagocytized by early eukaryotes, they eventually developed into mitochondria and chloroplasts. These new organelles retained the melatonin synthetic capacity of their forerunners such that all present-day animal and plant cells may produce melatonin in their mitochondria and chloroplasts. Melatonin concentrations are higher in mitochondria than in other subcellular compartments. Isolated mouse oocyte mitochondria form melatonin when they are incubated with serotonin, a necessary precursor. Oocyte mitochondria subsequently give rise to these organelles in all adult vertebrate cells where they continue to synthesize melatonin. The enzymes that convert serotonin to melatonin, i.e., arylalkylamine-N-acetyltransferase (AANAT) and acetylserotonin-O-methyltransferase, have been identified in brain mitochondria which, when incubated with serotonin, also form melatonin. Melatonin is a potent antioxidant and anti-cancer agent and is optimally positioned in mitochondria to aid in the maintenance of oxidative homeostasis and to reduce cancer cell transformation. Melatonin stimulates the transfer of mitochondria from healthy cells to damaged cells via tunneling nanotubes. Melatonin also regulates the major NAD+-dependent deacetylase, sirtuin 3, in the mitochondria. Disruptions of mitochondrial melatonin synthesis may contribute to a number of mitochondria-related diseases, as discussed in this review.
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Affiliation(s)
- Russel J Reiter
- Department of Cell Systems and Anatomy, UT Health, San Antonio, TX 78229, USA.
| | - Ramaswamy Sharma
- Department of Cell Systems and Anatomy, UT Health, San Antonio, TX 78229, USA.
| | - Sergio Rosales-Corral
- Centro de Investigacion Biomedica de Occidente, Instituto Mexicano del Seguro Social, Guadalajara, Jalisco CP45150, Mexico
| | | | - Luiz Gustavo de Almeida Chuffa
- Department of Structural and Functional Biology, Institute of Biosciences, UNESP-São Paulo State University, Botucatu, São Paulo 18618-689, Brazil
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Won E, Na KS, Kim YK. Associations between Melatonin, Neuroinflammation, and Brain Alterations in Depression. Int J Mol Sci 2021; 23:ijms23010305. [PMID: 35008730 PMCID: PMC8745430 DOI: 10.3390/ijms23010305] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 12/21/2021] [Accepted: 12/26/2021] [Indexed: 12/14/2022] Open
Abstract
Pro-inflammatory systemic conditions that can cause neuroinflammation and subsequent alterations in brain regions involved in emotional regulation have been suggested as an underlying mechanism for the pathophysiology of major depressive disorder (MDD). A prominent feature of MDD is disruption of circadian rhythms, of which melatonin is considered a key moderator, and alterations in the melatonin system have been implicated in MDD. Melatonin is involved in immune system regulation and has been shown to possess anti-inflammatory properties in inflammatory conditions, through both immunological and non-immunological actions. Melatonin has been suggested as a highly cytoprotective and neuroprotective substance and shown to stimulate all stages of neuroplasticity in animal models. The ability of melatonin to suppress inflammatory responses through immunological and non-immunological actions, thus influencing neuroinflammation and neurotoxicity, along with subsequent alterations in brain regions that are implicated in depression, can be demonstrated by the antidepressant-like effects of melatonin. Further studies that investigate the associations between melatonin, immune markers, and alterations in the brain structure and function in patients with depression could identify potential MDD biomarkers.
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Affiliation(s)
- Eunsoo Won
- Department of Psychiatry, Chaum, Seoul 06062, Korea;
- Department of Psychiatry, CHA Bundang Medical Center, CHA University, Seongnam 13496, Korea
| | - Kyoung-Sae Na
- Department of Psychiatry, Gachon University Gil Medical Center, Incheon 21565, Korea;
| | - Yong-Ku Kim
- Department of Psychiatry, Korea University Ansan Hospital, Korea University College of Medicine, Ansan 15355, Korea
- Correspondence:
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Mul Fedele ML, Senna CA, Aiello I, Golombek DA, Paladino N. Circadian Rhythms in Bacterial Sepsis Pathology: What We Know and What We Should Know. Front Cell Infect Microbiol 2021; 11:773181. [PMID: 34956930 PMCID: PMC8696002 DOI: 10.3389/fcimb.2021.773181] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 11/23/2021] [Indexed: 12/12/2022] Open
Abstract
Sepsis is a syndrome caused by a deregulated host response to infection, representing the primary cause of death from infection. In animal models, the mortality rate is strongly dependent on the time of sepsis induction, suggesting a main role of the circadian system. In patients undergoing sepsis, deregulated circadian rhythms have also been reported. Here we review data related to the timing of sepsis induction to further understand the different outcomes observed both in patients and in animal models. The magnitude of immune activation as well as the hypothermic response correlated with the time of the worst prognosis. The different outcomes seem to be dependent on the expression of the clock gene Bmal1 in the liver and in myeloid immune cells. The understanding of the role of the circadian system in sepsis pathology could be an important tool to improve patient therapies.
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Affiliation(s)
- Malena Lis Mul Fedele
- Laboratorio de Cronofisiología, Instituto de Investigaciones Biomédicas/Pontificia Universidad Católica Argentina - Consejo Nacional de Investigaciones Científicas y Técnicas (UCA-CONICET), Buenos Aires, Argentina
| | - Camila Agustina Senna
- Laboratorio de Cronobiología, Departamento de Ciencia y Tecnología, Universidad Nacional de Quilmes/Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Ignacio Aiello
- Laboratorio de Cronobiología, Departamento de Ciencia y Tecnología, Universidad Nacional de Quilmes/Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Diego Andres Golombek
- Laboratorio de Cronobiología, Departamento de Ciencia y Tecnología, Universidad Nacional de Quilmes/Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Natalia Paladino
- Laboratorio de Cronobiología, Departamento de Ciencia y Tecnología, Universidad Nacional de Quilmes/Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
- *Correspondence: Natalia Paladino,
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Melatonin and Pathological Cell Interactions: Mitochondrial Glucose Processing in Cancer Cells. Int J Mol Sci 2021; 22:ijms222212494. [PMID: 34830375 PMCID: PMC8621753 DOI: 10.3390/ijms222212494] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 10/06/2021] [Accepted: 11/17/2021] [Indexed: 12/18/2022] Open
Abstract
Melatonin is synthesized in the pineal gland at night. Since melatonin is produced in the mitochondria of all other cells in a non-circadian manner, the amount synthesized by the pineal gland is less than 5% of the total. Melatonin produced in mitochondria influences glucose metabolism in all cells. Many pathological cells adopt aerobic glycolysis (Warburg effect) in which pyruvate is excluded from the mitochondria and remains in the cytosol where it is metabolized to lactate. The entrance of pyruvate into the mitochondria of healthy cells allows it to be irreversibly decarboxylated by pyruvate dehydrogenase (PDH) to acetyl coenzyme A (acetyl-CoA). The exclusion of pyruvate from the mitochondria in pathological cells prevents the generation of acetyl-CoA from pyruvate. This is relevant to mitochondrial melatonin production, as acetyl-CoA is a required co-substrate/co-factor for melatonin synthesis. When PDH is inhibited during aerobic glycolysis or during intracellular hypoxia, the deficiency of acetyl-CoA likely prevents mitochondrial melatonin synthesis. When cells experiencing aerobic glycolysis or hypoxia with a diminished level of acetyl-CoA are supplemented with melatonin or receive it from another endogenous source (pineal-derived), pathological cells convert to a more normal phenotype and support the transport of pyruvate into the mitochondria, thereby re-establishing a healthier mitochondrial metabolic physiology.
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Toledano-Osorio M, Aguilera FS, Muñoz-Soto E, Osorio E, Toledano M, Escames G, Medina-Castillo AL, Osorio MT, López-López MT, Vallecillo-Rivas M, Osorio R. Melatonin-doped polymeric nanoparticles induce high crystalline apatite formation in root dentin. Dent Mater 2021; 37:1698-1713. [PMID: 34544591 DOI: 10.1016/j.dental.2021.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 09/04/2021] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To investigate the effect of novel polymeric nanoparticles (NPs) doped with melatonin (ML) on nano-hardness, crystallinity and ultrastructure of the formed hydroxyapatite after endodontic treatment. METHODS Undoped-NPs and ML-doped NPs (ML-NPs) were tested at radicular dentin, after 24 h and 6 m. A control group without NPs was included. Radicular cervical and apical dentin surfaces were studied by nano-hardness measurements, X-ray diffraction and transmission electron microscopy. Mean and standard deviation were analyzed by ANOVA and Student-Newman-Keuls multiple comparisons (p < 0.05). RESULTS Cervical dentin treated with undoped NPs maintained its nano-hardness values after 6 m of storage being [24 h: 0.29 (0.01); 6 m: 0.30 (0.02) GPa], but it decreased at apical dentin [24 h: 0.36 (0.01); 6 m: 0.28 (0.02) GPa]. When ML-NPs were used, nano-hardness was similar over time [24h: 0.31 (0.02); 6 m: 0.28 (0.03) GPa], at apical dentin. Root dentin treated with ML-NPs produced, in general, high crystallinity of new minerals and thicker crystals than those produced in the rest of the groups. After 6 m, crystals became organized in randomly oriented polyhedral, square polygonal block-like apatite or drop-like apatite polycrystalline lattices when ML-NPs were used. Undoped NPs generated poor crystallinity, with preferred orientation of small crystallite and increased microstrain. SIGNIFICANCE New polycrystalline formations encountered in dentin treated with ML-NPs may produce structural dentin stability and high mechanical performance at the root. The decrease of mechanical properties over time in dentin treated without NPs indicates scarce remineralization potential, dentin demineralization and further potential degradation. The amorphous stage may provide high hydroxyapatite solubility and remineralizing activity.
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Affiliation(s)
- Manuel Toledano-Osorio
- University of Granada, Department of Stomatology, Colegio Máximo de Cartuja s/n, Granada 18071, Spain
| | - Fátima S Aguilera
- University of Granada, Department of Stomatology, Colegio Máximo de Cartuja s/n, Granada 18071, Spain
| | - Esther Muñoz-Soto
- University of Granada, Department of Stomatology, Colegio Máximo de Cartuja s/n, Granada 18071, Spain
| | - Estrella Osorio
- University of Granada, Department of Stomatology, Colegio Máximo de Cartuja s/n, Granada 18071, Spain
| | - Manuel Toledano
- University of Granada, Department of Stomatology, Colegio Máximo de Cartuja s/n, Granada 18071, Spain.
| | - Germaine Escames
- Faculty of Medicine, Department of Physiology, Biomedical Research Center, CIBERFES, Ibs. San Cecilio University Hospital, University of Granada, Granada, Spain
| | - Antonio L Medina-Castillo
- University of Granada, NanoMyP, Spin-Off Enterprise, Edificio BIC-Granada, Av. Innovación 1, 18016, Armilla, Granada, Spain
| | | | - Modesto T López-López
- University of Granada, Faculty of Science, Applied Physics Department, Av. Fuente Nueva s/n, 18071 Granada, Spain
| | - Marta Vallecillo-Rivas
- University of Granada, Department of Stomatology, Colegio Máximo de Cartuja s/n, Granada 18071, Spain
| | - Raquel Osorio
- University of Granada, Department of Stomatology, Colegio Máximo de Cartuja s/n, Granada 18071, Spain
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A pilot study on the melatonin treatment in patients with early septic shock: results of a single-center randomized controlled trial. Ir J Med Sci 2021; 191:1913-1924. [PMID: 34468959 PMCID: PMC8408361 DOI: 10.1007/s11845-021-02758-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 08/25/2021] [Indexed: 12/12/2022]
Abstract
BACKGROUND We assessed the potential impact of a high dose of melatonin treatment in patients with early septic shock. METHODS Forty patients with early septic shock were randomly allocated to the melatonin or placebo groups. Besides standard-of-care treatment, melatonin and placebo were administered at a dose of 50 mg for five consecutive nights. The efficacy outcomes were severity of organ dysfunction based on the Sequential Organ Failure Assessment (SOFA) score, the number of patients requiring mechanical ventilation and ventilator-free days, the mean required vasopressor dose and vasopressor-free days, and 28 days all-cause mortality. RESULTS After 5-day treatment, the mean SOFA scores decreased 4.05 ± 4.75 score in the melatonin group and 2.25 ± 4.87 in the placebo group. On day 28, 60% of the melatonin-treated patients and 35% of the placebo-treated patients had a SOFA score below six. Thirteen cases in the placebo group and nine cases in the melatonin group required mechanical ventilation; however, there was no statistically significant difference between the groups regarding these outcomes. The melatonin-treated patients had more ventilator-free days than placebo-treated patients over the 28-day (16.90 ± 9.24 vs. 10.00 ± 10.94; p value = 0.035). The mean reduction in the required dose of vasopressor was 6.2 ± 5.12 in the melatonin-treated patients compared to 3.20 ± 3.95 in the placebo-treated patients (p value = 0.045). Vasopressor-free days in the melatonin-treated group were also significantly more than the placebo-treated group (12.75 ± 7.43 days vs. 10.15 ± 6.12 days; p value = 0.046). CONCLUSIONS Our pilot study supported the potential benefits of melatonin in treating septic shock. Further clinical evidence is required for expanding and confirming these findings. TRIAL REGISTRATION The trial was registered at Clinicaltrials.gov (ID code: IRCT20120215009014N296). Registration date: 15/09/2019.
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Daily Changes in the Expression of Clock Genes in Sepsis and Their Relation with Sepsis Outcome and Urinary Excretion of 6-Sulfatoximelatonin. Shock 2021; 53:550-559. [PMID: 31403491 DOI: 10.1097/shk.0000000000001433] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND Whereas the circadian system controls the daily production of melatonin and the daily activity of the immune system, increasing evidences support the association between circadian misalignment with the alterations in the immune response and melatonin rhythm during sepsis. The aim of this study was to analyze the daily changes in clock genes expression and the urinary excretion of 6-SM (6-sulfatoxymelatonin, the major melatonin metabolite), and their connection with the innate immune activity, oxidative status in blood, and clinical outcome during sepsis. METHODS Healthy volunteers, non-septic intensive care unit (ICU) patients, and septic ICU patients, were evaluated. The expression of bmal1, per2, clock, and cry1 genes was determined by polymerase chain reaction in blood; 6-SM was assessed in urine by ELISA; plasma cytokines IL-1β, IL-6, IL-8, TNFα, and IL-10 were determined by a multiplex array method, and lipid peroxidation (LPO) and protein oxidation (AOPP) by spectrophotometry. Hematological and biochemical data, and clinical scores of the patients, were also recorded. RESULTS Clock gene rhythm was maintained in non-septic patients but blunted in septic ones, whereas the innate immune and the oxidative stress responses were significantly higher in the latter. 6-SM excretion was also more elevated in septic than in non-septic patients, and it correlated with the degree of the immune response and oxidative status. 6-SM also correlated with SOFA and procalcitonin in the patients. Proinflammatory cytokines, LPO, and AOPP were normalized in the patients once recovered from sepsis. CONCLUSION Our data suggest a relationship between clock genes rhythm disruption, the immune response, and the oxidative status, with 6-SM acting as a compensatory response. ICU conditions are not a main clock disrupter because of the significant differences found in the responses of septic versus non-septic patients under the same ICU environment.
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Zhu CL, Yao RQ, Li LX, Li P, Xie J, Wang JF, Deng XM. Mechanism of Mitophagy and Its Role in Sepsis Induced Organ Dysfunction: A Review. Front Cell Dev Biol 2021; 9:664896. [PMID: 34164394 PMCID: PMC8215549 DOI: 10.1164/rccm.202111-2484oc+10.3389/fcell.2021.664896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 05/18/2021] [Indexed: 01/17/2024] Open
Abstract
Autophagy, an evolutionarily conserved process, plays an important role in maintaining cellular homeostasis under physiological and pathophysiological conditions. It is widely believed that mitochondria influence the development of disease by regulating cellular metabolism. When challenged by different stimuli, mitochondria may experience morphological disorders and functional abnormalities, leading to a selective form of autophagy-mitophagy, which can clear damaged mitochondria to promote mitochondrial quality control. Sepsis is a complex global problem with multiple organ dysfunction, often accompanied by manifold mitochondrial damage. Recent studies have shown that autophagy can regulate both innate and acquired immune processes to protect against organ dysfunction in sepsis. Sepsis-induced mitochondrial dysfunction may play a pathophysiological role in the initiation and progression of sepsis-induced organ failure. Mitophagy is reported to be beneficial for sepsis by eliminating disabled mitochondria and maintaining homeostasis to protect against organ failure. In this review, we summarize the recent findings and mechanisms of mitophagy and its involvement in septic organ dysfunction as a potential therapeutic target.
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Affiliation(s)
- Cheng-long Zhu
- Department of Anesthesiology and Intensive Care, Changhai Hospital, The Naval Medical University, Shanghai, China
| | - Ren-qi Yao
- Trauma Research Center, Fourth Medical Center of the Chinese PLA General Hospital, Beijing, China
- Department of Burn Surgery, Changhai Hospital, The Naval Medical University, Shanghai, China
| | - Lu-xi Li
- Department of Anesthesiology and Intensive Care, Changhai Hospital, The Naval Medical University, Shanghai, China
| | - Peng Li
- Department of Anesthesiology and Intensive Care, Changhai Hospital, The Naval Medical University, Shanghai, China
| | - Jian Xie
- Department of Anesthesiology and Intensive Care, Changhai Hospital, The Naval Medical University, Shanghai, China
| | - Jia-feng Wang
- Department of Anesthesiology and Intensive Care, Changhai Hospital, The Naval Medical University, Shanghai, China
| | - Xiao-ming Deng
- Department of Anesthesiology and Intensive Care, Changhai Hospital, The Naval Medical University, Shanghai, China
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Zhu CL, Yao RQ, Li LX, Li P, Xie J, Wang JF, Deng XM. Mechanism of Mitophagy and Its Role in Sepsis Induced Organ Dysfunction: A Review. Front Cell Dev Biol 2021; 9:664896. [PMID: 34164394 PMCID: PMC8215549 DOI: 10.1164/rccm.202111-2484oc 10.3389/fcell.2021.664896] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Autophagy, an evolutionarily conserved process, plays an important role in maintaining cellular homeostasis under physiological and pathophysiological conditions. It is widely believed that mitochondria influence the development of disease by regulating cellular metabolism. When challenged by different stimuli, mitochondria may experience morphological disorders and functional abnormalities, leading to a selective form of autophagy-mitophagy, which can clear damaged mitochondria to promote mitochondrial quality control. Sepsis is a complex global problem with multiple organ dysfunction, often accompanied by manifold mitochondrial damage. Recent studies have shown that autophagy can regulate both innate and acquired immune processes to protect against organ dysfunction in sepsis. Sepsis-induced mitochondrial dysfunction may play a pathophysiological role in the initiation and progression of sepsis-induced organ failure. Mitophagy is reported to be beneficial for sepsis by eliminating disabled mitochondria and maintaining homeostasis to protect against organ failure. In this review, we summarize the recent findings and mechanisms of mitophagy and its involvement in septic organ dysfunction as a potential therapeutic target.
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Affiliation(s)
- Cheng-long Zhu
- Department of Anesthesiology and Intensive Care, Changhai Hospital, The Naval Medical University, Shanghai, China
| | - Ren-qi Yao
- Trauma Research Center, Fourth Medical Center of the Chinese PLA General Hospital, Beijing, China,Department of Burn Surgery, Changhai Hospital, The Naval Medical University, Shanghai, China
| | - Lu-xi Li
- Department of Anesthesiology and Intensive Care, Changhai Hospital, The Naval Medical University, Shanghai, China
| | - Peng Li
- Department of Anesthesiology and Intensive Care, Changhai Hospital, The Naval Medical University, Shanghai, China
| | - Jian Xie
- Department of Anesthesiology and Intensive Care, Changhai Hospital, The Naval Medical University, Shanghai, China
| | - Jia-feng Wang
- Department of Anesthesiology and Intensive Care, Changhai Hospital, The Naval Medical University, Shanghai, China,*Correspondence: Jia-feng Wang,
| | - Xiao-ming Deng
- Department of Anesthesiology and Intensive Care, Changhai Hospital, The Naval Medical University, Shanghai, China,Xiao-ming Deng,
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35
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Zhu CL, Yao RQ, Li LX, Li P, Xie J, Wang JF, Deng XM. Mechanism of Mitophagy and Its Role in Sepsis Induced Organ Dysfunction: A Review. Front Cell Dev Biol 2021; 9:664896. [PMID: 34164394 PMCID: PMC8215549 DOI: 10.3389/fcell.2021.664896] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 05/18/2021] [Indexed: 12/14/2022] Open
Abstract
Autophagy, an evolutionarily conserved process, plays an important role in maintaining cellular homeostasis under physiological and pathophysiological conditions. It is widely believed that mitochondria influence the development of disease by regulating cellular metabolism. When challenged by different stimuli, mitochondria may experience morphological disorders and functional abnormalities, leading to a selective form of autophagy-mitophagy, which can clear damaged mitochondria to promote mitochondrial quality control. Sepsis is a complex global problem with multiple organ dysfunction, often accompanied by manifold mitochondrial damage. Recent studies have shown that autophagy can regulate both innate and acquired immune processes to protect against organ dysfunction in sepsis. Sepsis-induced mitochondrial dysfunction may play a pathophysiological role in the initiation and progression of sepsis-induced organ failure. Mitophagy is reported to be beneficial for sepsis by eliminating disabled mitochondria and maintaining homeostasis to protect against organ failure. In this review, we summarize the recent findings and mechanisms of mitophagy and its involvement in septic organ dysfunction as a potential therapeutic target.
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Affiliation(s)
- Cheng-Long Zhu
- Department of Anesthesiology and Intensive Care, Changhai Hospital, The Naval Medical University, Shanghai, China
| | - Ren-Qi Yao
- Trauma Research Center, Fourth Medical Center of the Chinese PLA General Hospital, Beijing, China.,Department of Burn Surgery, Changhai Hospital, The Naval Medical University, Shanghai, China
| | - Lu-Xi Li
- Department of Anesthesiology and Intensive Care, Changhai Hospital, The Naval Medical University, Shanghai, China
| | - Peng Li
- Department of Anesthesiology and Intensive Care, Changhai Hospital, The Naval Medical University, Shanghai, China
| | - Jian Xie
- Department of Anesthesiology and Intensive Care, Changhai Hospital, The Naval Medical University, Shanghai, China
| | - Jia-Feng Wang
- Department of Anesthesiology and Intensive Care, Changhai Hospital, The Naval Medical University, Shanghai, China
| | - Xiao-Ming Deng
- Department of Anesthesiology and Intensive Care, Changhai Hospital, The Naval Medical University, Shanghai, China
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Pi QZ, Wang XW, Jian ZL, Chen D, Zhang C, Wu QC. Melatonin Alleviates Cardiac Dysfunction Via Increasing Sirt1-Mediated Beclin-1 Deacetylation and Autophagy During Sepsis. Inflammation 2021; 44:1184-1193. [PMID: 33452667 DOI: 10.1007/s10753-021-01413-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 12/13/2020] [Accepted: 01/02/2021] [Indexed: 12/23/2022]
Abstract
Cardiac dysfunction is a major cause leading to multiple organ failure in sepsis. Beclin-1-dependent autophagy has been evidenced to exert protective effects on hearts in sepsis. However, the mechanisms on how Beclin-1 and autophagy are regulated remains enigmatic. To explore the detailed mechanisms controlling Beclin-1-dependent autophagy in septic heart and whether melatonin could protect against sepsis via regulating cardiac autophagy, adult Sprague-Dawley (SD) rats were subjected to cecal ligation and puncture (CLP) to induce sepsis. Rats were intraperitoneally administrated with 30 mg/kg melatonin within 5-min post-CLP surgery. Our data showed that sepsis induced Becline-1 acetylation and inhibited autophagy in hearts, resulting in impaired cardiac function. However, melatonin treatment facilitated Beclin-1 deacetylation and increased autophagy in septic hearts, thus improved cardiac function. Moreover, melatonin increased the expression and activity of Sirtuin 1 (Sirt1), and inhibition of Sirt1 abolished the protective effects of melatonin on Beclin-1 deacetylation and cardiac function. In conclusion, increased Beclin-1 acetylation was involved in impaired autophagy in septic hearts, while melatonin contributed to Beclin-1 deacetylation via Sirt1, leading to improved autophagy and cardiac function in sepsis. Our study sheds light on the important role of Beclin-1 acetylation in regulating autophagy in sepsis and suggests that melatonin is a potential candidate drug for the treatment of sepsis.
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Affiliation(s)
- Qiang-Zhong Pi
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Xiao-Wen Wang
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
| | - Zhao-Lei Jian
- Department of Cardiothoracic Surgery, Shanghai Jiao Tong University School of Medicine Xinhua Hospital, Shanghai, 200233, China
| | - Dan Chen
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
- Centre for Clinical Pharmacology, William Harvey Research Institute, Queen Mary University of London, London, EC1M 6BQ, UK
| | - Cheng Zhang
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
- Centre for Clinical Pharmacology, William Harvey Research Institute, Queen Mary University of London, London, EC1M 6BQ, UK
| | - Qing-Chen Wu
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
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Lachmann G, Ananthasubramaniam B, Wünsch VA, Scherfig LM, von Haefen C, Knaak C, Edel A, Ehlen L, Koller B, Goldmann A, Herzel H, Kramer A, Spies C. Circadian rhythms in septic shock patients. Ann Intensive Care 2021; 11:64. [PMID: 33900485 PMCID: PMC8076360 DOI: 10.1186/s13613-021-00833-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Accepted: 03/05/2021] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Despite the intensive efforts to improve the diagnosis and therapy of sepsis over the last decade, the mortality of septic shock remains high and causes substantial socioeconomical burden of disease. The function of immune cells is time-of-day-dependent and is regulated by several circadian clock genes. This study aims to investigate whether the rhythmicity of clock gene expression is altered in patients with septic shock. METHODS This prospective pilot study was performed at the university hospital Charité-Universitätsmedizin Berlin, Department of Anesthesiology and Operative Intensive Care Medicine (CCM, CVK). We included 20 patients with septic shock between May 2014 and January 2018, from whom blood was drawn every 4 h over a 24-h period to isolate CD14-positive monocytes and to measure the expression of 17 clock and clock-associated genes. Of these patients, 3 whose samples expressed fewer than 8 clock genes were excluded from the final analysis. A rhythmicity score SP was calculated, which comprises values between -1 (arrhythmic) and 1 (rhythmic), and expression data were compared to data of a healthy study population additionally. RESULTS 77% of the measured clock genes showed inconclusive rhythms, i.e., neither rhythmic nor arrhythmic. The clock genes NR1D1, NR1D2 and CRY2 were the most rhythmic, while CLOCK and ARNTL were the least rhythmic. Overall, the rhythmicity scores for septic shock patients were significantly (p < 0.0001) lower (0.23 ± 0.26) compared to the control group (12 healthy young men, 0.70 ± 0.18). In addition, the expression of clock genes CRY1, NR1D1, NR1D2, DBP, and PER2 was suppressed in septic shock patients and CRY2 was significantly upregulated compared to controls. CONCLUSION Molecular rhythms in immune cells of septic shock patients were substantially altered and decreased compared to healthy young men. The decrease in rhythmicity was clock gene-dependent. The loss of rhythmicity and down-regulation of clock gene expression might be caused by sepsis and might further deteriorate immune responses and organ injury, but further studies are necessary to understand underlying pathophysiological mechanisms. Trail registration Clinical trial registered with www.ClinicalTrials.gov (NCT02044575) on 24 January 2014.
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Affiliation(s)
- Gunnar Lachmann
- Department of Anesthesiology and Operative Intensive Care Medicine (CCM, CVK), Charité-Universitätsmedizin Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
- Berlin Institute of Health (BIH), Anna-Louisa-Karsch-Str. 2, 10178, Berlin, Germany
| | - Bharath Ananthasubramaniam
- Institute for Theoretical Biology, Charité-Universitätsmedizin Berlin, Berlin, Germany
- Humboldt Universität zu Berlin, Unter den Linden 6, 10117, Berlin, Germany
| | - Viktor A Wünsch
- Department of Anesthesiology and Operative Intensive Care Medicine (CCM, CVK), Charité-Universitätsmedizin Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Lara-Marie Scherfig
- Department of Anesthesiology and Operative Intensive Care Medicine (CCM, CVK), Charité-Universitätsmedizin Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Clarissa von Haefen
- Department of Anesthesiology and Operative Intensive Care Medicine (CCM, CVK), Charité-Universitätsmedizin Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Cornelia Knaak
- Department of Anesthesiology and Operative Intensive Care Medicine (CCM, CVK), Charité-Universitätsmedizin Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Andreas Edel
- Department of Anesthesiology and Operative Intensive Care Medicine (CCM, CVK), Charité-Universitätsmedizin Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Lukas Ehlen
- Department of Anesthesiology and Operative Intensive Care Medicine (CCM, CVK), Charité-Universitätsmedizin Berlin, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Barbara Koller
- Laboratory of Chronobiology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Anton Goldmann
- Department for Neurology and Neurological Intensive Care Medicine, Asklepios Fachklinikum Brandenburg, Brandenburg an der Havel, Deutschland
| | - Hanspeter Herzel
- Institute for Theoretical Biology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Achim Kramer
- Laboratory of Chronobiology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Claudia Spies
- Department of Anesthesiology and Operative Intensive Care Medicine (CCM, CVK), Charité-Universitätsmedizin Berlin, Augustenburger Platz 1, 13353, Berlin, Germany.
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Melatonin-doped polymeric nanoparticles reinforce and remineralize radicular dentin: Morpho-histological, chemical and biomechanical studies. Dent Mater 2021; 37:1107-1120. [PMID: 33846017 DOI: 10.1016/j.dental.2021.03.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 03/15/2021] [Accepted: 03/28/2021] [Indexed: 11/23/2022]
Abstract
OBJECTIVES To investigate the effectiveness of novel polymeric nanoparticles (NPs) doped with melatonin (ML) in reducing dentin permeability and facilitating dentin remineralization after endodontic treatment. METHODS The effect of undoped NPs and ML-doped NPs (ML-NPs) was tested in radicular dentin, at 24 h and 6 m. A control group without NPs was included. ML liberation was measured. Radicular dentin was assessed for fluid filtration. Dentin remineralization was analyzed by scanning electron microscopy, AFM, Young's modulus (Ei), Nano DMA-tan delta, and Raman analysis. RESULTS ML release ranged from 1.85 mg/mL at 24 h to 0.033 mg/mL at 28 d. Both undoped NPs and ML-NPs treated dentin exhibited the lowest microleakage, but samples treated with ML-NPs exhibited hermetically sealed dentinal tubules and extended mineral deposits onto dentin. ML-NPs promoted higher and durable Ei, and functional remineralization at root dentin, generating differences between the values of tan delta among groups and creating zones of stress concentration. Undoped-NPs produced closure of some tubules and porosities at the expense of a relative mineral amorphization. Chemical remineralization based on mineral and organic assessments was higher in samples treated with ML-NPs. When using undoped NPs, precipitation of minerals occurred; however, radicular dentin was not mechanically reinforced but weakened over time. SIGNIFICANCE Application of ML-NPs in endodontically treated teeth, previous to the canal filling step, is encouraged due to occlusion of dentinal tubules and the reinforcement of the radicular dentin structure.
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Hu S, Pi Q, Luo M, Cheng Z, Liang X, Luo S, Xia Y. Contribution of the NLRP3/IL-1β axis to impaired vasodilation in sepsis through facilitation of eNOS proteolysis and the protective role of melatonin. Int Immunopharmacol 2021; 93:107388. [PMID: 33529913 DOI: 10.1016/j.intimp.2021.107388] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 12/27/2020] [Accepted: 01/08/2021] [Indexed: 10/22/2022]
Abstract
Endothelial dysfunction is a typical characteristic of sepsis. Endothelial nitric oxide synthase (eNOS) is important for maintaining endothelial function. Our previous study reported that the NLRP3 inflammasome promoted endothelial dysfunction by enhancing inflammation. However, the effects of NLRP3 on eNOS require further investigation. Therefore, the present study aimed to investigate the role of NLRP3 on eNOS expression levels in cecal ligation and puncture-induced impaired endothelium-dependent vascular relaxation and to determine the protective effects of melatonin. eNOS expression levels were discovered to be downregulated in the mesenteric arteries of sepsis model mice. Inhibiting NLRP3 with 10 mg/ kg MCC950 or inhibiting IL-1β with 100 mg diacerein rescued the eNOS expression and improved endothelium-dependent vascular relaxation. In vitro, IL-1β stimulation downregulated eNOS expression levels in human aortic endothelial cells (HAECs) in a concentration- and time-dependent manner, while pretreatment with 1 µM of the proteasome inhibitor MG132 reversed this effect. In addition, treatment with 10 mg/kg MG132 also prevented the proteolysis of eNOS and improved endothelium-dependent vascular relaxation in vivo. Notably, treatment with 30 mg/kg melatonin downregulated NLRP3 expression levels and decreased IL-1β secretion, subsequently increasing the expression of eNOS and improving endothelium-dependent vascular relaxation. In conclusion, the findings of the present study indicated that the NLRP3/IL-1β axis may impair vasodilation by promoting the proteolysis of eNOS and melatonin may protect against sepsis-induced endothelial relaxation dysfunction by inhibiting the NLRP3/IL-1β axis, suggesting its pharmacological potential in sepsis.
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Affiliation(s)
- Shupeng Hu
- Department of Cardiology, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China; Institute of Life Science, Chongqing Medical University, Chongqing 400016, China
| | - Qiangzhong Pi
- Department of Cardiology, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China; Institute of Life Science, Chongqing Medical University, Chongqing 400016, China
| | - Minghao Luo
- Department of Cardiology, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China; Institute of Life Science, Chongqing Medical University, Chongqing 400016, China
| | - Zhe Cheng
- Department of Cardiology, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China; Institute of Life Science, Chongqing Medical University, Chongqing 400016, China
| | - Xiaoxue Liang
- Department of Cardiology, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China; Institute of Life Science, Chongqing Medical University, Chongqing 400016, China
| | - Suxin Luo
- Department of Cardiology, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China.
| | - Yong Xia
- Department of Cardiology, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China; Institute of Life Science, Chongqing Medical University, Chongqing 400016, China; Davis Heart and Lung Research Institute, Division of Cardiovascular Medicine, 473 West 12th Avenue, Columbus, OH 43210, USA.
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Gurunathan S, Qasim M, Kang MH, Kim JH. Role and Therapeutic Potential of Melatonin in Various Type of Cancers. Onco Targets Ther 2021; 14:2019-2052. [PMID: 33776451 PMCID: PMC7987311 DOI: 10.2147/ott.s298512] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Accepted: 03/02/2021] [Indexed: 12/24/2022] Open
Abstract
Cancer is a large group of diseases and the second leading cause of death worldwide. Lung, prostate, colorectal, stomach, and liver cancers are the most common types of cancer in men, whereas breast, colorectal, lung, cervical, and thyroid cancers are the most common among women. Presently, various treatment strategies, including surgical resection combined with chemotherapy, radiotherapy, nanotherapy, and immunotherapy, have been used as conventional treatments for patients with cancer. However, the clinical outcomes of advanced-stage disease remain relatively unfavorable owing to the emergence of chemoresistance, toxicity, and other undesired detrimental side effects. Therefore, new therapies to overcome these limitations are indispensable. Recently, there has been considerable evidence from experimental and clinical studies suggesting that melatonin can be used to prevent and treat cancer. Studies have confirmed that melatonin mitigates the pathogenesis of cancer by directly affecting carcinogenesis and indirectly disrupting the circadian cycle. Melatonin (MLT) is nontoxic and exhibits a range of beneficial effects against cancer via apoptotic, antiangiogenic, antiproliferative, and metastasis-inhibitory pathways. The combination of melatonin with conventional drugs improves the drug sensitivity of cancers, including solid and liquid tumors. In this manuscript, we will comprehensively review some of the cellular, animal, and human studies from the literature that provide evidence that melatonin has oncostatic and anticancer properties. Further, this comprehensive review compiles the available experimental and clinical data analyzing the history, epidemiology, risk factors, therapeutic effect, clinical significance, of melatonin alone or in combination with chemotherapeutic agents or radiotherapy, as well as the underlying molecular mechanisms of its anticancer effect against lung, breast, prostate, colorectal, skin, liver, cervical, and ovarian cancers. Nonetheless, in the interest of readership clarity and ease of reading, we have discussed the overall mechanism of the anticancer activity of melatonin against different types of cancer. We have ended this report with general conclusions and future perspectives.
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Affiliation(s)
- Sangiliyandi Gurunathan
- Department of Stem Cell and Regenerative Biotechnology, Konkuk University, Seoul, 05029, Korea
| | - Muhammad Qasim
- Center of Bioengineering and Nanomedicine, Department of Food Science, University of Otago, Dunedin, 9054, New Zealand
| | - Min-Hee Kang
- Department of Stem Cell and Regenerative Biotechnology, Konkuk University, Seoul, 05029, Korea
| | - Jin-Hoi Kim
- Department of Stem Cell and Regenerative Biotechnology, Konkuk University, Seoul, 05029, Korea
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Hardeland R. Divergent Importance of Chronobiological Considerations in High- and Low-dose Melatonin Therapies. Diseases 2021; 9:18. [PMID: 33803450 PMCID: PMC8006026 DOI: 10.3390/diseases9010018] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Accepted: 03/01/2021] [Indexed: 12/15/2022] Open
Abstract
Melatonin has been used preclinically and clinically for different purposes. Some applications are related to readjustment of circadian oscillators, others use doses that exceed the saturation of melatonin receptors MT1 and MT2 and are unsuitable for chronobiological purposes. Conditions are outlined for appropriately applying melatonin as a chronobiotic or for protective actions at elevated levels. Circadian readjustments require doses in the lower mg range, according to receptor affinities. However, this needs consideration of the phase response curve, which contains a silent zone, a delay part, a transition point and an advance part. Notably, the dim light melatonin onset (DLMO) is found in the silent zone. In this specific phase, melatonin can induce sleep onset, but does not shift the circadian master clock. Although sleep onset is also under circadian control, sleep and circadian susceptibility are dissociated at this point. Other limits of soporific effects concern dose, duration of action and poor individual responses. The use of high melatonin doses, up to several hundred mg, for purposes of antioxidative and anti-inflammatory protection, especially in sepsis and viral diseases, have to be seen in the context of melatonin's tissue levels, its formation in mitochondria, and detoxification of free radicals.
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Affiliation(s)
- Rüdiger Hardeland
- Johann Friedrich Blumenbach Institute of Zoology and Anthropology, University of Göttingen, 37073 Göttingen, Germany
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Rahim I, Sayed RK, Fernández-Ortiz M, Aranda-Martínez P, Guerra-Librero A, Fernández-Martínez J, Rusanova I, Escames G, Djerdjouri B, Acuña-Castroviejo D. Melatonin alleviates sepsis-induced heart injury through activating the Nrf2 pathway and inhibiting the NLRP3 inflammasome. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2021; 394:261-277. [PMID: 32936353 DOI: 10.1007/s00210-020-01972-5] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 08/31/2020] [Indexed: 12/17/2022]
Abstract
Melatonin improved the outcome of septic cardiomyopathy by inhibiting NLRP3 priming induced by reactive oxygen species. To get insights into these events, we studied the melatonin/Nrf2 antioxidant pathways during sepsis in the heart of NLRP3-deficient mice. Sepsis was induced by cecal ligation and puncture and melatonin was given at a dose of 30 mg/kg. Nuclear turnover of Nrf2 and p-Ser40 Nrf2 and expression of ho-1 were enhanced in nlrp3+/+ and nlrp3-/- mice during sepsis. Sepsis caused higher mitochondria impairment, apoptotic and autophagic events in nlrp3+/+ mice than in nlrp3-/- animals. These findings were accompanied by greater levels of Parkin and PINK-1, and lower Mfn2/Drp-1 ratio in nlrp3+/+ than in nlrp3-/- mice during sepsis, supporting less mitophagy in the latter. Ultrastructural analysis of myocardial tissue further confirmed these observations. The activation of NLRP3 inflammasome accounted for most of the deleterious effects of sepsis, whereas the Nrf2-dependent antioxidative response activation in response to sepsis was unable to neutralize these events. In turn, melatonin further enhanced the Nrf2 response in both mice strains and reduced the NLRP3 inflammasome activation in nlrp3+/+ mice, restoring myocardial homeostasis. The data support that the anti-inflammatory efficacy of melatonin against sepsis depends, at least in part, on Nrf2 activation.
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Affiliation(s)
- Ibtissem Rahim
- Departamento de Fisiología, Facultad de Medicina, Instituto de Biotecnología, Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, 18016, Granada, Spain
- Département de Biologie et Physiologie Cellulaire, Faculté des Sciences de la Nature et de la Vie, Université Blida 1, 09000, Blida, Algeria
- Faculté des Sciences Biologiques, Laboratoire de Biologie Cellulaire et Moléculaire, Université des Sciences et de la Technologie Houari Boumediene, Bab-Ezzouar, 16111, Algiers, Algeria
| | - Ramy K Sayed
- Departamento de Fisiología, Facultad de Medicina, Instituto de Biotecnología, Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, 18016, Granada, Spain
- Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Sohag University, Sohag, 82524, Egypt
| | - Marisol Fernández-Ortiz
- Departamento de Fisiología, Facultad de Medicina, Instituto de Biotecnología, Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, 18016, Granada, Spain
| | - Paula Aranda-Martínez
- Departamento de Fisiología, Facultad de Medicina, Instituto de Biotecnología, Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, 18016, Granada, Spain
| | - Ana Guerra-Librero
- Departamento de Fisiología, Facultad de Medicina, Instituto de Biotecnología, Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, 18016, Granada, Spain
| | - José Fernández-Martínez
- Departamento de Fisiología, Facultad de Medicina, Instituto de Biotecnología, Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, 18016, Granada, Spain
| | - Iryna Rusanova
- Departamento de Fisiología, Facultad de Medicina, Instituto de Biotecnología, Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, 18016, Granada, Spain
| | - Germaine Escames
- Departamento de Fisiología, Facultad de Medicina, Instituto de Biotecnología, Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, 18016, Granada, Spain
- CIBERfes, Ibs.Granada, and UGC de Laboratorios Clínicos, Complejo Hospitalario de Granada, 18016, Granada, Spain
| | - Bahia Djerdjouri
- Faculté des Sciences Biologiques, Laboratoire de Biologie Cellulaire et Moléculaire, Université des Sciences et de la Technologie Houari Boumediene, Bab-Ezzouar, 16111, Algiers, Algeria
| | - Darío Acuña-Castroviejo
- Departamento de Fisiología, Facultad de Medicina, Instituto de Biotecnología, Centro de Investigación Biomédica, Parque Tecnológico de Ciencias de la Salud, Universidad de Granada, 18016, Granada, Spain.
- CIBERfes, Ibs.Granada, and UGC de Laboratorios Clínicos, Complejo Hospitalario de Granada, 18016, Granada, Spain.
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Kopustinskiene DM, Bernatoniene J. Molecular Mechanisms of Melatonin-Mediated Cell Protection and Signaling in Health and Disease. Pharmaceutics 2021; 13:pharmaceutics13020129. [PMID: 33498316 PMCID: PMC7909293 DOI: 10.3390/pharmaceutics13020129] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 01/14/2021] [Accepted: 01/18/2021] [Indexed: 01/07/2023] Open
Abstract
Melatonin, an endogenously synthesized indolamine, is a powerful antioxidant exerting beneficial action in many pathological conditions. Melatonin protects from oxidative stress in ischemic/reperfusion injury, neurodegenerative diseases, and aging, decreases inflammation, modulates the immune system, inhibits proliferation, counteracts the Warburg effect, and promotes apoptosis in various cancer models. Melatonin stimulates antioxidant enzymes in the cells, protects mitochondrial membrane phospholipids, especially cardiolipin, from oxidation thus preserving integrity of the membranes, affects mitochondrial membrane potential, stimulates activity of respiratory chain enzymes, and decreases the opening of mitochondrial permeability transition pore and cytochrome c release. This review will focus on the molecular mechanisms of melatonin effects in the cells during normal and pathological conditions and possible melatonin clinical applications.
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Affiliation(s)
- Dalia M. Kopustinskiene
- Institute of Pharmaceutical Technologies, Faculty of Pharmacy, Medical Academy, Lithuanian University of Health Sciences, Sukileliu pr. 13, LT-50161 Kaunas, Lithuania;
| | - Jurga Bernatoniene
- Institute of Pharmaceutical Technologies, Faculty of Pharmacy, Medical Academy, Lithuanian University of Health Sciences, Sukileliu pr. 13, LT-50161 Kaunas, Lithuania;
- Department of Drug Technology and Social Pharmacy, Faculty of Pharmacy, Medical Academy, Lithuanian University of Health Sciences, Sukileliu pr. 13, LT-50161 Kaunas, Lithuania
- Correspondence:
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Current Evidence on the Role of the Gut Microbiome in ADHD Pathophysiology and Therapeutic Implications. Nutrients 2021; 13:nu13010249. [PMID: 33467150 PMCID: PMC7830868 DOI: 10.3390/nu13010249] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 01/12/2021] [Accepted: 01/14/2021] [Indexed: 12/14/2022] Open
Abstract
Studies suggest that the bidirectional relationship existent between the gut microbiome (GM) and the central nervous system (CNS), or so-called the microbiome–gut–brain axis (MGBA), is involved in diverse neuropsychiatric diseases in children and adults. In pediatric age, most studies have focused on patients with autism. However, evidence of the role played by the MGBA in attention deficit/hyperactivity disorder (ADHD), the most common neurodevelopmental disorder in childhood, is still scanty and heterogeneous. This review aims to provide the current evidence on the functioning of the MGBA in pediatric patients with ADHD and the specific role of omega-3 polyunsaturated fatty acids (ω-3 PUFAs) in this interaction, as well as the potential of the GM as a therapeutic target for ADHD. We will explore: (1) the diverse communication pathways between the GM and the CNS; (2) changes in the GM composition in children and adolescents with ADHD and association with ADHD pathophysiology; (3) influence of the GM on the ω-3 PUFA imbalance characteristically found in ADHD; (4) interaction between the GM and circadian rhythm regulation, as sleep disorders are frequently comorbid with ADHD; (5) finally, we will evaluate the most recent studies on the use of probiotics in pediatric patients with ADHD.
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Anderson G, Carbone A, Mazzoccoli G. Aryl Hydrocarbon Receptor Role in Co-Ordinating SARS-CoV-2 Entry and Symptomatology: Linking Cytotoxicity Changes in COVID-19 and Cancers; Modulation by Racial Discrimination Stress. BIOLOGY 2020; 9:E249. [PMID: 32867244 PMCID: PMC7564943 DOI: 10.3390/biology9090249] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 08/25/2020] [Accepted: 08/26/2020] [Indexed: 12/15/2022]
Abstract
There is an under-recognized role of the aryl hydrocarbon receptor (AhR) in co-ordinating the entry and pathophysiology of the severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2) that underpins the COVID-19 pandemic. The rise in pro-inflammatory cytokines during the 'cytokine storm' induce indoleamine 2,3-dioxygenase (IDO), leading to an increase in kynurenine that activates the AhR, thereby heightening the initial pro-inflammatory cytokine phase and suppressing the endogenous anti-viral response. Such AhR-driven changes underpin the heightened severity and fatality associated with pre-existent high-risk medical conditions, such as type II diabetes, as well as to how racial discrimination stress contributes to the raised severity/fatality in people from the Black Asian and Minority Ethnic (BAME) communities. The AhR is pivotal in modulating mitochondrial metabolism and co-ordinating specialized, pro-resolving mediators (SPMs), the melatonergic pathways, acetyl-coenzyme A, and the cyclooxygenase (COX) 2-prostaglandin (PG) E2 pathway that underpin 'exhaustion' in the endogenous anti-viral cells, paralleling similar metabolic suppression in cytolytic immune cells that is evident across all cancers. The pro-inflammatory cytokine induced gut permeability/dysbiosis and suppression of pineal melatonin are aspects of the wider pathophysiological underpinnings regulated by the AhR. This has a number of prophylactic and treatment implications for SARS-CoV-2 infection and cancers and future research directions that better investigate the biological underpinnings of social processes and how these may drive health disparities.
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Affiliation(s)
- George Anderson
- CRC Scotland & London, Eccleston Square, London SW1V 1PB, UK;
| | - Annalucia Carbone
- Division of Internal Medicine and Chronobiology Laboratory, Department of Medical Sciences, Fondazione IRCCS “Casa Sollievo della Sofferenza”, San Giovanni Rotondo, 71013 Foggia, Italy;
| | - Gianluigi Mazzoccoli
- Division of Internal Medicine and Chronobiology Laboratory, Department of Medical Sciences, Fondazione IRCCS “Casa Sollievo della Sofferenza”, San Giovanni Rotondo, 71013 Foggia, Italy;
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46
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Kleszczyński K, Slominski AT, Steinbrink K, Reiter RJ. Clinical Trials for Use of Melatonin to Fight against COVID-19 Are Urgently Needed. Nutrients 2020; 12:E2561. [PMID: 32847033 PMCID: PMC7551551 DOI: 10.3390/nu12092561] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 08/19/2020] [Accepted: 08/21/2020] [Indexed: 02/06/2023] Open
Abstract
The recent pandemic of COVID-19 has already infected millions of individuals and has resulted in the death of hundreds of thousands worldwide. Based on clinical features, pathology, and the pathogenesis of respiratory disorders induced by this and other highly homogenous coronaviruses, the evidence suggests that excessive inflammation, oxidation, and an exaggerated immune response contribute to COVID-19 pathology; these are caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). This leads to a cytokine storm and subsequent progression triggering acute lung injury (ALI)/acute respiratory distress syndrome (ARDS), and often death. We and others have reported melatonin to be an anti-inflammatory and anti-oxidative molecule with a high safety profile. It is effective in critical care patients by reducing their vascular permeability and anxiety, inducing sedation, and improving their quality of sleep. As melatonin shows no harmful adverse effects in humans, it is imperative to introduce this indoleamine into clinical trials where it might be beneficial for better clinical outcomes as an adjuvant treatment of COVID-19-infected patients. Herein, we strongly encourage health care professionals to test the potential of melatonin for targeting the COVID-19 pandemic. This is urgent, since there is no reliable treatment for this devastating disease.
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Affiliation(s)
- Konrad Kleszczyński
- Department of Dermatology, University of Münster, Von-Esmarch-Str. 58, 48149 Münster, Germany;
| | - Andrzej T. Slominski
- Department of Dermatology, Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL 35294, USA;
- Pathology and Laboratory Medicine Service, VA Medical Center, Birmingham, AL 35294, USA
| | - Kerstin Steinbrink
- Department of Dermatology, University of Münster, Von-Esmarch-Str. 58, 48149 Münster, Germany;
| | - Russel J. Reiter
- Department of Cellular and Structural Biology, UT Health, San Antonio, TX 78229, USA;
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Liu L, Zhang L, Li L, Chen M, Wang Z, Shen Y, Huang J, Tang L. Sleep deprivation aggravated lipopolysaccharide/D-galactosamine-induced acute liver injury by suppressing melatonin production. Inflamm Res 2020; 69:1133-1142. [PMID: 32809047 DOI: 10.1007/s00011-020-01393-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 07/13/2020] [Accepted: 08/11/2020] [Indexed: 12/27/2022] Open
Abstract
OBJECTIVE Sleep loss is common in patients with liver injury, but the effects of sleep deprivation (SD) on liver injury remain unclear. In the present study, the potential effects of SD on acute liver injury and the underlying mechanisms have been investigated. METHODS The sleep of male BALB/c mice has been deprived by using a modified multiple platform water bath for 3 days and acute liver injury was induced by intraperitoneal injection of lipopolysaccharide (LPS) and D-galactosamine (D-Gal). The degree of liver injury was detected by aminotransferase determination, histopathology and survival rate analysis. Inflammatory response and melatonin (MT) were measured by enzyme-linked immunosorbent assay (ELISA). In addition, hepatocyte apoptosis was determined by caspase activity measurement and terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assay. RESULTS We observed that SD increased plasma aminotransferases, TUNEL-positive hepatocytes, histological abnormalities and mortality rates in mice with LPS/D-Gal treatment. SD also promoted LPS/D-Gal-induced production of TNF-α and upregulated hepatic caspase-8, caspase-9, and caspase-3 activities in LPS/D-Gal-exposed mice. In addition, SD significantly decreased MT contents in plasma of mice with acute liver injury, but supplementation with MT reversed these SD-promoted changes. CONCLUSION Our data suggested that SD exacerbated LPS/D-Gal-induced liver injury via decreasing melatonin production.
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Affiliation(s)
- Lu Liu
- Department of Rehabilitation Medicine and Physical Therapy, The Affiliated Rehabilitation Hospital of Chongqing Medical University, 50 Xiejiawan Cultural Seventh Village, Jiulongpo District, Chongqing, 400050, China
| | - Li Zhang
- Department of Pathophysiology, Chongqing Medical University, 1 Yixueyuan Road, Chongqing, 400016, China
| | - Longjiang Li
- Department of Pathophysiology, Chongqing Medical University, 1 Yixueyuan Road, Chongqing, 400016, China
| | - Mengting Chen
- Department of Neurology, The Affiliated Rehabilitation Hospital of Chongqing Medical University, 50 Xiejiawan Cultural Seventh Village, Jiulongpo District, Chongqing, 400050, China
| | - Zhe Wang
- Department of Neurology, University-Town Hospital of Chongqing Medical University, 55 Middle Road, University City, Shapingba District, Chongqing, 401331, China
| | - Yi Shen
- Department of Pathophysiology, Chongqing Medical University, 1 Yixueyuan Road, Chongqing, 400016, China
| | - Jiayi Huang
- Department of Pathophysiology, Chongqing Medical University, 1 Yixueyuan Road, Chongqing, 400016, China
| | - Ling Tang
- Department of Neurology, University-Town Hospital of Chongqing Medical University, 55 Middle Road, University City, Shapingba District, Chongqing, 401331, China.
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Xia L, Sun C, Zhu H, Zhai M, Zhang L, Jiang L, Hou P, Li J, Li K, Liu Z, Li B, Wang X, Yi W, Liang H, Jin Z, Yang J, Yi D, Liu J, Yu S, Duan W. Melatonin protects against thoracic aortic aneurysm and dissection through SIRT1-dependent regulation of oxidative stress and vascular smooth muscle cell loss. J Pineal Res 2020; 69:e12661. [PMID: 32329099 DOI: 10.1111/jpi.12661] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Revised: 04/07/2020] [Accepted: 04/14/2020] [Indexed: 12/12/2022]
Abstract
Melatonin functions as an endogenous protective molecule in multiple vascular diseases, whereas its effects on thoracic aortic aneurysm and dissection (TAAD) and underlying mechanisms have not been reported. In this study, TAAD mouse model was successfully induced by β-aminopropionitrile fumarate (BAPN). We found that melatonin treatment remarkably prevented the deterioration of TAAD, evidenced by decreased incidence, ameliorated aneurysmal dilation and vascular stiffness, improved aortic morphology, and inhibited elastin degradation, macrophage infiltration, and matrix metalloproteinase expression. Moreover, melatonin blunted oxidative stress damage and vascular smooth muscle cell (VSMC) loss. Notably, BAPN induced a decrease in SIRT1 expression and activity of mouse aorta, whereas melatonin treatment reversed it. Further mechanistic study demonstrated that blocking SIRT1 signaling partially inhibited these beneficial effects of melatonin on TAAD. Additionally, the melatonin receptor was involved in this phenomenon. Our study is the first to report that melatonin exerts therapeutic effects against TAAD by reducing oxidative stress and VSMC loss via activation of SIRT1 signaling in a receptor-dependent manner, thus suggesting a novel therapeutic strategy for TAAD.
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Affiliation(s)
- Lin Xia
- Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Chang Sun
- Department of Orthopedics, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Hanzhao Zhu
- Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Mengen Zhai
- Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Liyun Zhang
- Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Liqing Jiang
- Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Peng Hou
- Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Junfeng Li
- Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Kaifeng Li
- Institute of Material Medical, School of Pharmacy, The Fourth Military Medical University, Xi'an, China
| | - Zhenhua Liu
- Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Buying Li
- Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Xiaowu Wang
- Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Wei Yi
- Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Hongliang Liang
- Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Zhenxiao Jin
- Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Jian Yang
- Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Dinghua Yi
- Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Jincheng Liu
- Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Shiqiang Yu
- Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Weixun Duan
- Department of Cardiovascular Surgery, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
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Feitosa EL, Júnior FTDSS, Nery Neto JADO, Matos LFL, Moura MHDS, Rosales TO, De Freitas GBL. COVID-19: Rational discovery of the therapeutic potential of Melatonin as a SARS-CoV-2 main Protease Inhibitor. Int J Med Sci 2020; 17:2133-2146. [PMID: 32922174 PMCID: PMC7484667 DOI: 10.7150/ijms.48053] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 06/29/2020] [Indexed: 12/16/2022] Open
Abstract
The SARS-CoV-2 spread quickly across the globe. The World Health Organization (WHO) on March 11 declared COVID-19 a pandemic. The mortality rate, hospital disorders and incalculable economic and social damages, besides the unproven efficacy of the treatments evaluated against COVID-19, raised the need for immediate control of this disease. Therefore, the current study employed in silico tools to rationally identify new possible SARS-CoV-2 main protease (Mpro) inhibitors. That is an enzyme conserved among the coronavirus species; hence, the identification of an Mpro inhibitor is to make it a broad-spectrum drug. Molecular docking studies described the binding sites and the interaction energies of 74 Mpro-ligand complexes deposited in the Protein Data Bank (PDB). A structural similarity screening was carried out in order to identify possible Mpro ligands that show additional pharmacological properties against COVID-19. We identified 59 hit compounds and among them, melatonin stood out due to its prominent immunomodulatory and anti-inflammatory activities; it can reduce oxidative stress, defence cell mobility and efficiently combat the cytokine storm and sepsis. In addition, melatonin is an inhibitor of calmodulin, an essential intracellular component to maintain angiotensin-converting enzyme 2 (ACE-2) on the cell surface. Interestingly, one of the most promising hits in our docking study was melatonin. It revealed better interaction energy with Mpro compared to ligands in complexes from PDB. Consequently, melatonin can have response potential in early stages for its possible effects on ACE-2 and Mpro, although it is also promising in more severe stages of the disease for its action against hyper-inflammation. These results definitely do not confirm antiviral activity, but can rather be used as a basis for further preclinical and clinical trials.
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Affiliation(s)
- Eduardo L Feitosa
- Laboratório de Química Medicinal e Biotecnologia (LAQUIMB), Department of Biochemistry and Pharmacology, Federal University of Piauí, Teresina, PI, Brazil
| | - Francisco Tiago Dos S S Júnior
- Laboratório de Química Medicinal e Biotecnologia (LAQUIMB), Department of Biochemistry and Pharmacology, Federal University of Piauí, Teresina, PI, Brazil
| | - José Arimatéa De O Nery Neto
- Laboratório de Química Medicinal e Biotecnologia (LAQUIMB), Department of Biochemistry and Pharmacology, Federal University of Piauí, Teresina, PI, Brazil
| | - Luis F L Matos
- Laboratório de Química Medicinal e Biotecnologia (LAQUIMB), Department of Biochemistry and Pharmacology, Federal University of Piauí, Teresina, PI, Brazil
| | - Matheus H De S Moura
- Laboratório de Química Medicinal e Biotecnologia (LAQUIMB), Department of Biochemistry and Pharmacology, Federal University of Piauí, Teresina, PI, Brazil
| | | | - Guilherme Barroso L De Freitas
- Laboratório de Química Medicinal e Biotecnologia (LAQUIMB), Department of Biochemistry and Pharmacology, Federal University of Piauí, Teresina, PI, Brazil
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50
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Rehman A, Baloch NUA, Morrow JP, Pacher P, Haskó G. Targeting of G-protein coupled receptors in sepsis. Pharmacol Ther 2020; 211:107529. [PMID: 32197794 PMCID: PMC7388546 DOI: 10.1016/j.pharmthera.2020.107529] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 03/11/2020] [Accepted: 03/11/2020] [Indexed: 12/11/2022]
Abstract
The Third International Consensus Definitions (Sepsis-3) define sepsis as life-threatening multi-organ dysfunction caused by a dysregulated host response to infection. Sepsis can progress to septic shock-an even more lethal condition associated with profound circulatory, cellular and metabolic abnormalities. Septic shock remains a leading cause of death in intensive care units and carries a mortality of almost 25%. Despite significant advances in our understanding of the pathobiology of sepsis, therapeutic interventions have not translated into tangible differences in the overall outcome for patients. Clinical trials of antagonists of various pro-inflammatory mediators in sepsis have been largely unsuccessful in the past. Given the diverse physiologic roles played by G-protein coupled receptors (GPCR), modulation of GPCR signaling for the treatment of sepsis has also been explored. Traditional pharmacologic approaches have mainly focused on ligands targeting the extracellular domains of GPCR. However, novel techniques aimed at modulating GPCR intracellularly through aptamers, pepducins and intrabodies have opened a fresh avenue of therapeutic possibilities. In this review, we summarize the diverse roles played by various subfamilies of GPCR in the pathogenesis of sepsis and identify potential targets for pharmacotherapy through these novel approaches.
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Affiliation(s)
- Abdul Rehman
- Department of Medicine, Rutgers-New Jersey Medical School, Newark, NJ, United States
| | - Noor Ul-Ain Baloch
- Department of Medicine, Rutgers-New Jersey Medical School, Newark, NJ, United States
| | - John P Morrow
- Department of Medicine, Columbia University, New York City, NY, United States
| | - Pál Pacher
- Laboratory of Cardiovascular Physiology and Tissue Injury, National Institutes of Health, National Institute on Alcohol Abuse and Alcoholism, Bethesda, MD, United States
| | - György Haskó
- Department of Anesthesiology, Columbia University, New York City, NY, United States.
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