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Silva BR, Costa FC, De Lima Neto MF, Caetano Filho FF, de Assis EIT, Aguiar FLN, Silva AWB, Martins SD, Araújo VR, Matos MHT, Costa JJN, Silva JRV. Melatonin acts through different mechanisms to control oxidative stress and primordial follicle activation and survival during in vitro culture of bovine ovarian tissue. Domest Anim Endocrinol 2024; 86:106824. [PMID: 37976887 DOI: 10.1016/j.domaniend.2023.106824] [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: 07/12/2023] [Revised: 10/31/2023] [Accepted: 11/01/2023] [Indexed: 11/19/2023]
Abstract
This study aims to evaluate the effects of melatonin and its mechanisms of action on preantral follicle activation and survival, stromal cell density and collagen distribution in extracellular matrix (ECM). The involvement of melatonin receptors and mTORC1 pathway in these procedures were also investigated. To this end, ovarian fragments were cultured for six days in α-MEM+ alone or supplemented with 1000 pM melatonin, 1000 pM melatonin with 1000 pM luzindole (inhibitor of melatonin receptors), or 1000 pM melatonin with 0.16 µg/ml rapamycin (mTORC1 inhibitor). At the end of culture period, tissues were processed for classical histology, and the follicles were classified as normal or degenerated, as well as in primordial or growing follicles. The ovarian stromal cell density and ECM collagen distribution were also evaluated. Samples of ovarian tissues were also destined to measure the levels of thiol and mRNA for CAT, SOD, GPX1 and PRDX1, as well as the activity of antioxidant enzymes CAT, SOD, and GPX1. The results demonstrated that ovarian tissues cultured with melatonin, melatonin with luzindole or melatonin with rapamycin had significantly higher percentage of morphologically normal follicles than those cultured in control medium (α-MEM+). However, the presence of either luzindole or rapamycin, did not block the positive effects of melatonin on follicle survival (P > 0.05). Although the presence of melatonin in culture medium reduced the percentage of primordial follicles and increased the percentage of development follicles, these positive effects of melatonin were blocked by either luzindole or rapamycin (P < 0.05). Melatonin, melatonin with luzindole or melatonin with rapamycin did not influence the number of ovarian stromal cells. In contrast, melatonin significantly increased the percentages of collagen in ovarian tissues, but the positive effects of melatonin were blocked by either luzindole or rapamycin. Tissues cultured with melatonin and rapamycin had higher levels of mRNA for CAT and lower GPx activity when compared to those cultured in control medium. In conclusion, melatonin promotes primordial follicle activation, increases collagen fiber in ECM of in vitro cultured bovine ovarian tissue through its membrane-coupled receptors and mTORC1. Oppositely, melatonin increase follicles survival by acting through other pathways, since it can pass through cell membranes and directly regulate oxidative stress.
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Affiliation(s)
- Bianca R Silva
- Laboratory of Biotechnology and Physiology of Reproduction (LABIREP), Federal University of Ceara, Av. Maurocélio Rocha Ponte 100, postal code 62041-040, Sobral, CE, Brazil
| | - Francisco C Costa
- Laboratory of Biotechnology and Physiology of Reproduction (LABIREP), Federal University of Ceara, Av. Maurocélio Rocha Ponte 100, postal code 62041-040, Sobral, CE, Brazil
| | - Miguel F De Lima Neto
- Laboratory of Biotechnology and Physiology of Reproduction (LABIREP), Federal University of Ceara, Av. Maurocélio Rocha Ponte 100, postal code 62041-040, Sobral, CE, Brazil
| | - Francisco F Caetano Filho
- Laboratory of Biotechnology and Physiology of Reproduction (LABIREP), Federal University of Ceara, Av. Maurocélio Rocha Ponte 100, postal code 62041-040, Sobral, CE, Brazil
| | - Ernando I T de Assis
- Laboratory of Biotechnology and Physiology of Reproduction (LABIREP), Federal University of Ceara, Av. Maurocélio Rocha Ponte 100, postal code 62041-040, Sobral, CE, Brazil
| | - Francisco L N Aguiar
- Department of Veterinary Medicine, Sousa Campus, Federal Institute of Education, Science and Technology of Paraíba, Sousa, Paraíba, Brazil
| | - Anderson W B Silva
- Laboratory of Biotechnology and Physiology of Reproduction (LABIREP), Federal University of Ceara, Av. Maurocélio Rocha Ponte 100, postal code 62041-040, Sobral, CE, Brazil
| | - Solano D Martins
- Laboratory of Biochemistry and Gene Expression, Higher Institute of Biomedical Sciences, State University of Ceará, Fortaleza, CE, 60714-903, Brazil
| | - Valdevane R Araújo
- Laboratory of Biochemistry and Gene Expression, Higher Institute of Biomedical Sciences, State University of Ceará, Fortaleza, CE, 60714-903, Brazil
| | - Maria H T Matos
- Laboratory of Cell Biology, Cytology and Histology, Federal University of Vale do São Francisco (UNIVASF), Petrolina, Pernambuco, Brazil
| | - José J N Costa
- Laboratory of Biotechnology and Physiology of Reproduction (LABIREP), Federal University of Ceara, Av. Maurocélio Rocha Ponte 100, postal code 62041-040, Sobral, CE, Brazil
| | - José R V Silva
- Laboratory of Biotechnology and Physiology of Reproduction (LABIREP), Federal University of Ceara, Av. Maurocélio Rocha Ponte 100, postal code 62041-040, Sobral, CE, Brazil.
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Migni A, Mancuso F, Baroni T, Di Sante G, Rende M, Galli F, Bartolini D. Melatonin as a Repairing Agent in Cadmium- and Free Fatty Acid-Induced Lipotoxicity. Biomolecules 2023; 13:1758. [PMID: 38136629 PMCID: PMC10741790 DOI: 10.3390/biom13121758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 12/04/2023] [Accepted: 12/05/2023] [Indexed: 12/24/2023] Open
Abstract
(1) Background: Cadmium (Cd) is a potentially toxic element with a long half-life in the human body (20-40 years). Cytotoxicity mechanisms of Cd include increased levels of oxidative stress and apoptotic signaling, and recent studies have suggested that these aspects of Cd toxicity contribute a role in the pathobiology of non-alcoholic fatty liver disease (NAFLD), a highly prevalent ailment associated with hepatic lipotoxicity and an increased generation of reactive oxygen species (ROS). In this study, Cd toxicity and its interplay with fatty acid (FA)-induced lipotoxicity have been studied in intestinal epithelium and liver cells; the cytoprotective function of melatonin (MLT) has been also evaluated. (2) Methods: human liver cells (HepaRG), primary murine hepatocytes and Caco-2 intestinal epithelial cells were exposed to CdCl2 before and after induction of lipotoxicity with oleic acid (OA) and/or palmitic acid (PA), and in some experiments, FA was combined with MLT (50 nM) treatment. (3) Results: CdCl2 toxicity was associated with ROS induction and reduced cell viability in both the hepatic and intestinal cells. Cd and FA synergized to induce lipid droplet formation and ROS production; the latter was higher for PA compared to OA in liver cells, resulting in a higher reduction in cell viability, especially in HepaRG and primary hepatocytes, whereas CACO-2 cells showed higher resistance to Cd/PA-induced lipotoxicity compared to liver cells. MLT showed significant protection against Cd toxicity either considered alone or combined with FFA-induced lipotoxicity in primary liver cells. (4) Conclusions: Cd and PA combine their pro-oxidant activity to induce lipotoxicity in cellular populations of the gut-liver axis. MLT can be used to lessen the synergistic effect of Cd-PA on cellular ROS formation.
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Affiliation(s)
- Anna Migni
- Department of Pharmaceutical Sciences, University of Perugia, 06123 Perugia, Italy;
| | - Francesca Mancuso
- Department of Medicine and Surgery, University of Perugia, 06123 Perugia, Italy; (F.M.); (T.B.); (G.D.S.); (M.R.)
| | - Tiziano Baroni
- Department of Medicine and Surgery, University of Perugia, 06123 Perugia, Italy; (F.M.); (T.B.); (G.D.S.); (M.R.)
| | - Gabriele Di Sante
- Department of Medicine and Surgery, University of Perugia, 06123 Perugia, Italy; (F.M.); (T.B.); (G.D.S.); (M.R.)
| | - Mario Rende
- Department of Medicine and Surgery, University of Perugia, 06123 Perugia, Italy; (F.M.); (T.B.); (G.D.S.); (M.R.)
| | - Francesco Galli
- Department of Pharmaceutical Sciences, University of Perugia, 06123 Perugia, Italy;
| | - Desirée Bartolini
- Department of Pharmaceutical Sciences, University of Perugia, 06123 Perugia, Italy;
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Makris A, Alevra AI, Exadactylos A, Papadopoulos S. The Role of Melatonin to Ameliorate Oxidative Stress in Sperm Cells. Int J Mol Sci 2023; 24:15056. [PMID: 37894737 PMCID: PMC10606652 DOI: 10.3390/ijms242015056] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 09/21/2023] [Accepted: 09/26/2023] [Indexed: 10/29/2023] Open
Abstract
It is widely accepted that oxidative stress (OS) coming from a wide variety of causes has detrimental effects on male fertility. Antioxidants could have a significant role in the treatment of male infertility, and the current systematic review on the role of melatonin to ameliorate OS clearly shows that improvement of semen parameters follows melatonin supplementation. Although melatonin has considerable promise, further studies are needed to clarify its ability to preserve or restore semen quality under stress conditions in varied species. The present review examines the actions of melatonin via receptor subtypes and its function in the context of OS across male vertebrates.
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Affiliation(s)
| | | | | | - Serafeim Papadopoulos
- Hydrobiology-Ichthyology Laboratory, Department of Ichthyology and Aquatic Environment, University of Thessaly, Fytokou Str., 38446 Volos, Greece; (A.M.); (A.I.A.); (A.E.)
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Dai P, Shen J, Shen D, Li X, Win-Shwe TT, Li C. Melatonin Ameliorates Apoptosis of A549 Cells Exposed to Chicken House PM 2.5: A Novel Insight in Poultry Production. TOXICS 2023; 11:562. [PMID: 37505528 PMCID: PMC10383700 DOI: 10.3390/toxics11070562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 06/18/2023] [Accepted: 06/20/2023] [Indexed: 07/29/2023]
Abstract
The particulate matter 2.5 (PM2.5) from the chicken production system can cause lung injury and reduce productivity through prolonged breath as it attaches large amounts of harmful substances and microbes. Melatonin has acted to regulate physiological and metabolic disorders and improve growth performance during poultry production. This research would investigate the apoptosis caused by chicken house PM2.5 on lung pulmonary epithelial cells and the protective action of melatonin. Here, the basal epithelial cells of human lung adenocarcinoma (A549 cells) were subjected to PM2.5 from the broiler breeding house to investigate the apoptosis induced by PM2.5 as well as the alleviation of melatonin. The apoptosis was aggravated by PM2.5 (12.5 and 25 μg/mL) substantially, and the expression of Bcl-2, Bad, Bax, PERK, and CHOP increased dramatically after PM2.5 treatment. Additionally, the up-regulation of cleaved caspase-9 and cleaved caspase-3 as well as endoplasmic reticulum stress (ERS)-related proteins, including ATF6 and CHOP, was observed due to PM2.5 exposure. It is worth noting that melatonin could support A549 cells' survival, in which reduced expression of Bax, Bad, cleaved caspase-3, and cleaved caspase-9 appeared. Concurrently, the level of malondialdehyde (MDA) was down-regulated and enhanced the intracellular content of total superoxide dismutase (T-SOD) and catalase (CAT) after treatment by PM2.5 together with melatonin. Collectively, our study underlined that melatonin exerted an anti-apoptotic action on A549 cells by strengthening their antioxidant capacity.
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Affiliation(s)
- Pengyuan Dai
- Institute of Reproductive Medicine, Medical School of Nantong University, Nantong 226019, China
- Research Center for Livestock Environmental Control and Smart Production, College of Animal Science and Technology, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, China
| | - Jiakun Shen
- Research Center for Livestock Environmental Control and Smart Production, College of Animal Science and Technology, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, China
| | - Dan Shen
- Research Center for Livestock Environmental Control and Smart Production, College of Animal Science and Technology, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, China
| | - Xiaotong Li
- Research Center for Livestock Environmental Control and Smart Production, College of Animal Science and Technology, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, China
| | - Tin-Tin Win-Shwe
- Center for Environmental Risk Research, National Institute for Environmental Studies, Tsukuba 305-8506, Japan
| | - Chunmei Li
- Research Center for Livestock Environmental Control and Smart Production, College of Animal Science and Technology, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, China
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Impact of Melatonin on RAW264.7 Macrophages during Mechanical Strain. Int J Mol Sci 2022; 23:ijms232113397. [DOI: 10.3390/ijms232113397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 10/28/2022] [Accepted: 10/29/2022] [Indexed: 11/06/2022] Open
Abstract
The concentration of melatonin is elevated during the night when patients mainly wear removable orthodontic appliances. Next to periodontal ligament fibroblasts and osteoblasts, macrophages react to mechanical strain with an increased expression of inflammatory mediators. Here, we investigated the impact of melatonin on RAW264.7 macrophages exposed to tensile or compressive strain occurring during orthodontic tooth movement in the periodontal ligament. Before exposure to mechanical strain for 4 h, macrophages were pre-incubated with different melatonin concentrations for 24 h, to determine the dependence of melatonin concentration. Afterwards, we performed experiments with and without mechanical strain, the most effective melatonin concentration (25 µM), and the melatonin receptor 2 (MT2) specific antagonist 4P-PDOT. The expression of inflammatory genes and proteins was investigated by RT-qPCR, ELISAs, and immunoblot. Both tensile and compressive strain increased the expression of the investigated inflammatory factors interleukin-1-beta, interleukin-6, tumor necrosis factor alpha, and prostaglandin endoperoxide synthase-2. This effect was inhibited by the addition of melatonin. Incubation with 4P-PDOT blocked this anti-inflammatory effect of melatonin. Melatonin had an anti-inflammatory effect on macrophages exposed to mechanical strain, independent of the type of mechanical strain. As inhibition was possible with 4P-PDOT, the MT2 receptor might be involved in the regulation of the observed effects.
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Bartolini D, Arato I, Mancuso F, Giustarini D, Bellucci C, Vacca C, Aglietti MC, Stabile AM, Rossi R, Cruciani G, Rende M, Calafiore R, Luca G, Galli F. Melatonin modulates Nrf2 activity to protect porcine pre-pubertal Sertoli cells from the abnormal H 2 O 2 generation and reductive stress effects of cadmium. J Pineal Res 2022; 73:e12806. [PMID: 35524288 PMCID: PMC9539639 DOI: 10.1111/jpi.12806] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 05/04/2022] [Accepted: 05/05/2022] [Indexed: 11/27/2022]
Abstract
Melatonin (MLT) is a cytoprotective agent holding potential to prevent cadmium (Cd) toxicity and its impact in testicular function and fertility. In this study, we explored such potential in porcine pre-pubertal Sertoli cells (SCs). Cd toxicity resulted in impaired SC viability and function, abnormal cellular H2 O2 generation and efflux, and induction of reductive stress by the upregulation of Nrf2 expression and activity, cystine uptake and glutathione biosynthesis, glutathione-S-transferase P (GSTP) expression, and protein glutathionylation inhibition. Cd toxicity also stimulated the activity of cellular kinases (MAPK-ERK1/2 and Akt) and NFkB transcription factor, and cJun expression was increased. MLT produced a potent cytoprotective effect when co-administered with Cd to SCs; its efficacy and the molecular mechanism behind its cytoprotective function varied according to Cd concentrations. However, a significant restoration of cell viability and function, and of H2 O2 levels, was observed both at 5 and 10 μM Cd. Mechanistically, these effects of MLT were associated with a significant reduction of the Cd-induced activation of Nrf2 and GSTP expression at all Cd concentrations. CAT and MAPK-ERK1/2 activity upregulation was associated with these effects at 5 μM Cd, whereas glutathione biosynthesis and efflux were involved at 10 μM Cd together with an increased expression of the cystine transporter xCT, of cJun and Akt and NFkB activity. MLT protects SCs from Cd toxicity reducing its H2 O2 generation and reductive stress effects. A reduced activity of Nrf2 and the modulation of other molecular players of MLT signaling, provide a mechanistic rational for the cytoprotective effect of this molecule in SCs.
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Affiliation(s)
- Desirée Bartolini
- Department of Pharmaceutical SciencesUniversity of PerugiaPerugiaItaly
- Department of Medicine and Surgery, Section of Human, Clinical and Forensic AnatomyUniversity of PerugiaPerugiaItaly
| | - Iva Arato
- Department of Medicine and SurgeryUniversity of PerugiaPerugiaItaly
| | | | - Daniela Giustarini
- Department of Biotechnology, Chemistry and PharmacyUniversity of SienaSienaItaly
| | - Catia Bellucci
- Department of Medicine and SurgeryUniversity of PerugiaPerugiaItaly
| | - Carmine Vacca
- Department of Chemistry, Biology and BiotechnologyUniversity of PerugiaPerugiaItaly
| | | | - Anna Maria Stabile
- Department of Medicine and Surgery, Section of Human, Clinical and Forensic AnatomyUniversity of PerugiaPerugiaItaly
| | - Ranieri Rossi
- Department of Biotechnology, Chemistry and PharmacyUniversity of SienaSienaItaly
| | - Gabriele Cruciani
- Department of Chemistry, Biology and BiotechnologyUniversity of PerugiaPerugiaItaly
| | - Mario Rende
- Department of Medicine and Surgery, Section of Human, Clinical and Forensic AnatomyUniversity of PerugiaPerugiaItaly
| | - Riccardo Calafiore
- Department of Medicine and SurgeryUniversity of PerugiaPerugiaItaly
- Department of Medicine and Surgery, International Biotechnological Center for Endocrine, Metabolic and Embryo‐Reproductive Translational Research (CIRTEMER)University of PerugiaPerugiaItaly
| | - Giovanni Luca
- Department of Medicine and SurgeryUniversity of PerugiaPerugiaItaly
- Division of Medical Andrology and Endocrinology of ReproductionSaint Mary HospitalTerniItaly
- Department of Medicine and Surgery, International Biotechnological Center for Endocrine, Metabolic and Embryo‐Reproductive Translational Research (CIRTEMER)University of PerugiaPerugiaItaly
| | - Francesco Galli
- Department of Pharmaceutical SciencesUniversity of PerugiaPerugiaItaly
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Melatonin Receptors: A Key Mediator in Animal Reproduction. Vet Sci 2022; 9:vetsci9070309. [PMID: 35878326 PMCID: PMC9320721 DOI: 10.3390/vetsci9070309] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 06/16/2022] [Accepted: 06/20/2022] [Indexed: 01/26/2023] Open
Abstract
Melatonin, a hormone produced by the mammalian pineal gland, influences various physiological activities, many of which are related to animal reproduction, including neuroendocrine function, rhythm regulation, seasonal behavior, gonadogenesis, gamete development and maturation, sexual maturation, and thermoregulation. Melatonin exerts beneficial actions mainly via binding with G-protein-coupled receptors (GPCR), termed MT1 and MT2. Melatonin receptors are crucial for mediating animal reproduction. This paper reviews the characteristics of melatonin receptors including MT1 and MT2, as well as their roles in mediating signal transduction and biological effects, with a focus on their function in animal reproduction. In addition, we briefly summarize the developments in pharmacological research regarding melatonin receptors as drug targets. It is expected that this review will provide a reference for further exploration and unveiling of melatonin receptor function in reproductive regulation.
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Asadi E, Najafi A, Benson JD. Exogenous Melatonin Ameliorates the Negative Effect of Osmotic Stress in Human and Bovine Ovarian Stromal Cells. Antioxidants (Basel) 2022; 11:antiox11061054. [PMID: 35739950 PMCID: PMC9219940 DOI: 10.3390/antiox11061054] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 05/20/2022] [Accepted: 05/24/2022] [Indexed: 11/30/2022] Open
Abstract
Ovarian tissue cryopreservation transplantation (OTCT) is the most flexible option to preserve fertility in women and children with cancer. However, OTCT is associated with follicle loss and an accompanying short lifespan of the grafts. Cryopreservation-induced damage could be due to cryoprotective agent (CPA) toxicity and osmotic shock. Therefore, one way to avoid this damage is to maintain the cell volume within osmotic tolerance limits (OTLs). Here, we aimed to determine, for the first time, the OTLs of ovarian stromal cells (OSCs) and their relationship with reactive oxygen species (ROS) and mitochondrial respiratory chain activity (MRCA) of OSCs. We evaluated the effect of an optimal dose of melatonin on OTLs, viability, MRCA, ROS and total antioxidant capacity (TAC) of both human and bovine OSCs in plated and suspended cells. The OTLs of OSCs were between 200 and 375 mOsm/kg in bovine and between 150 and 500 mOsm/kg in human. Melatonin expands OTLs of OSCs. Furthermore, melatonin significantly reduced ROS and improved TAC, MRCA and viability. Due to the narrow osmotic window of OSCs, it is important to optimize the current protocols of OTCT to maintain enough alive stromal cells, which are necessary for follicle development and graft longevity. The addition of melatonin is a promising strategy for improved cryopreservation media.
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Marcantonini G, Bartolini D, Zatini L, Costa S, Passerini M, Rende M, Luca G, Basta G, Murdolo G, Calafiore R, Galli F. Natural Cryoprotective and Cytoprotective Agents in Cryopreservation: A Focus on Melatonin. Molecules 2022; 27:3254. [PMID: 35630729 PMCID: PMC9145333 DOI: 10.3390/molecules27103254] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 05/13/2022] [Accepted: 05/15/2022] [Indexed: 01/31/2023] Open
Abstract
Cryoprotective and cytoprotective agents (Cytoprotective Agents) are fundamental components of the cryopreservation process. This review presents the essentials of the cryopreservation process by examining its drawbacks and the role of cytoprotective agents in protecting cell physiology. Natural cryoprotective and cytoprotective agents, such as antifreeze proteins, sugars and natural deep eutectic systems, have been compared with synthetic ones, addressing their mechanisms of action and efficacy of protection. The final part of this article focuses melatonin, a hormonal substance with antioxidant properties, and its emerging role as a cytoprotective agent for somatic cells and gametes, including ovarian tissue, spermatozoa and spermatogonial stem cells.
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Affiliation(s)
- Giada Marcantonini
- Department of Pharmaceutical Sciences, Lipidomics and Micronutrient Vitamins Laboratory and Human Anatomy Laboratory, University of Perugia, 06126 Perugia, Italy; (G.M.); (D.B.); (L.Z.)
| | - Desirée Bartolini
- Department of Pharmaceutical Sciences, Lipidomics and Micronutrient Vitamins Laboratory and Human Anatomy Laboratory, University of Perugia, 06126 Perugia, Italy; (G.M.); (D.B.); (L.Z.)
| | - Linda Zatini
- Department of Pharmaceutical Sciences, Lipidomics and Micronutrient Vitamins Laboratory and Human Anatomy Laboratory, University of Perugia, 06126 Perugia, Italy; (G.M.); (D.B.); (L.Z.)
| | - Stefania Costa
- Angelantoni Life Science S.r.l., 06056 Massa Martana, Italy; (S.C.); (M.P.)
| | | | - Mario Rende
- Department of Medicine and Surgery, Section of Human, Clinic and Forensic Anatomy, University of Perugia, 06132 Perugia, Italy;
| | - Giovanni Luca
- Department of Medicine and Surgery, University of Perugia, 06132 Perugia, Italy; (G.L.); (G.B.); (G.M.); (R.C.)
- Centro Biotecnologico Internazionale di Ricerca Traslazionale ad Indirizzo Endocrino, Metabolico ed Embrio-Riproduttivo (CIRTEMER), 06132 Perugia, Italy
| | - Giuseppe Basta
- Department of Medicine and Surgery, University of Perugia, 06132 Perugia, Italy; (G.L.); (G.B.); (G.M.); (R.C.)
- Centro Biotecnologico Internazionale di Ricerca Traslazionale ad Indirizzo Endocrino, Metabolico ed Embrio-Riproduttivo (CIRTEMER), 06132 Perugia, Italy
| | - Giuseppe Murdolo
- Department of Medicine and Surgery, University of Perugia, 06132 Perugia, Italy; (G.L.); (G.B.); (G.M.); (R.C.)
| | - Riccardo Calafiore
- Department of Medicine and Surgery, University of Perugia, 06132 Perugia, Italy; (G.L.); (G.B.); (G.M.); (R.C.)
- Centro Biotecnologico Internazionale di Ricerca Traslazionale ad Indirizzo Endocrino, Metabolico ed Embrio-Riproduttivo (CIRTEMER), 06132 Perugia, Italy
| | - Francesco Galli
- Department of Pharmaceutical Sciences, Lipidomics and Micronutrient Vitamins Laboratory and Human Anatomy Laboratory, University of Perugia, 06126 Perugia, Italy; (G.M.); (D.B.); (L.Z.)
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Nikolaev G, Robeva R, Konakchieva R. Membrane Melatonin Receptors Activated Cell Signaling in Physiology and Disease. Int J Mol Sci 2021; 23:ijms23010471. [PMID: 35008896 PMCID: PMC8745360 DOI: 10.3390/ijms23010471] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/28/2021] [Accepted: 12/29/2021] [Indexed: 02/07/2023] Open
Abstract
The pineal hormone melatonin has attracted great scientific interest since its discovery in 1958. Despite the enormous number of basic and clinical studies the exact role of melatonin in respect to human physiology remains elusive. In humans, two high-affinity receptors for melatonin, MT1 and MT2, belonging to the family of G protein-coupled receptors (GPCRs) have been cloned and identified. The two receptor types activate Gi proteins and MT2 couples additionally to Gq proteins to modulate intracellular events. The individual effects of MT1 and MT2 receptor activation in a variety of cells are complemented by their ability to form homo- and heterodimers, the functional relevance of which is yet to be confirmed. Recently, several melatonin receptor genetic polymorphisms were discovered and implicated in pathology-for instance in type 2 diabetes, autoimmune disease, and cancer. The circadian patterns of melatonin secretion, its pleiotropic effects depending on cell type and condition, and the already demonstrated cross-talks of melatonin receptors with other signal transduction pathways further contribute to the perplexity of research on the role of the pineal hormone in humans. In this review we try to summarize the current knowledge on the membrane melatonin receptor activated cell signaling in physiology and pathology and their relevance to certain disease conditions including cancer.
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Affiliation(s)
- Georgi Nikolaev
- Faculty of Biology, Sofia University “St. Kliment Ohridski”, 1504 Sofia, Bulgaria;
- Correspondence:
| | - Ralitsa Robeva
- Department of Endocrinology, Faculty of Medicine, Medical University, 1431 Sofia, Bulgaria;
| | - Rossitza Konakchieva
- Faculty of Biology, Sofia University “St. Kliment Ohridski”, 1504 Sofia, Bulgaria;
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Li B, Cheng X, Aierken A, Du J, He W, Zhang M, Tan N, Kou Z, Peng S, Jia W, Tang H, Hua J. Melatonin Promotes the Therapeutic Effect of Mesenchymal Stem Cells on Type 2 Diabetes Mellitus by Regulating TGF-β Pathway. Front Cell Dev Biol 2021; 9:722365. [PMID: 34722505 PMCID: PMC8554153 DOI: 10.3389/fcell.2021.722365] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 09/27/2021] [Indexed: 12/26/2022] Open
Abstract
Abundant evidence proves the therapeutic effect of adipose-derived mesenchymal stem cells (ADMSCs) in the treatment of diabetes mellitus. However, the problems have not been solved that viability of ADMSCs were inconsistent and the cells quickly undergo senescence after in vitro cell culture. In addition, the therapeutic effect of ADMSCs is still not satisfactory. In this study, melatonin (MLT) was added to canine ADMSC culture medium, and the treated cells were used to treat type 2 diabetes mellitus (T2DM). Our research reveals that adding MLT to ADMSC culture medium can promote the viability of ADMSCs. This effect depends on the binding of MLT and MLT receptors, which activates the transforming growth factor β (TGF-β) pathway and then changes the cell cycle of ADMSCs and improves the viability of ADMSCs. Since ADMSCs were found to be used to treat T2DM by anti-inflammatory and anti-endoplasmic reticulum (ER) stress capabilities, our data demonstrate that MLT augment several effects of ADMSCs in remission hyperglycemia, insulin resistance, and liver glycogen metabolism in T2DM patients. This suggest that ADMSCs and MLT-ADMSCs is safe and vabulable for pet clinic.
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Affiliation(s)
- Balun Li
- Shaanxi Centre of Stem Cells Engineering and Technology, College of Veterinary Medicine, Northwest A&F University, Xianyang, China
| | - Xuedi Cheng
- Shaanxi Centre of Stem Cells Engineering and Technology, College of Veterinary Medicine, Northwest A&F University, Xianyang, China
| | - Aili Aierken
- Shaanxi Centre of Stem Cells Engineering and Technology, College of Veterinary Medicine, Northwest A&F University, Xianyang, China
| | - Jiaxin Du
- Department of Animal Engineering, Yangling Vocational and Technical College, Xianyang, China.,Department of Veterinary Medicine, College of Animal Sciences, Institute of Preventive Veterinary Sciences, Zhejiang University, Hangzhou, China
| | - Wenlai He
- Shaanxi Centre of Stem Cells Engineering and Technology, College of Veterinary Medicine, Northwest A&F University, Xianyang, China
| | - Mengfei Zhang
- Shaanxi Centre of Stem Cells Engineering and Technology, College of Veterinary Medicine, Northwest A&F University, Xianyang, China
| | - Ning Tan
- Shaanxi Centre of Stem Cells Engineering and Technology, College of Veterinary Medicine, Northwest A&F University, Xianyang, China
| | - Zheng Kou
- Shaanxi Centre of Stem Cells Engineering and Technology, College of Veterinary Medicine, Northwest A&F University, Xianyang, China
| | - Sha Peng
- Shaanxi Centre of Stem Cells Engineering and Technology, College of Veterinary Medicine, Northwest A&F University, Xianyang, China
| | - Wenwen Jia
- Shanghai East Hospital, East Hospital Affiliated to Tongji University, Shanghai, China
| | - Haiyang Tang
- Shaanxi Centre of Stem Cells Engineering and Technology, College of Veterinary Medicine, Northwest A&F University, Xianyang, China
| | - Jinlian Hua
- Shaanxi Centre of Stem Cells Engineering and Technology, College of Veterinary Medicine, Northwest A&F University, Xianyang, China
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12
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Dexmedetomidine reduces the apoptosis of rat hippocampal neurons via mediating ERK1/2 signal pathway by targeting miR-155. Acta Histochem 2021; 123:151734. [PMID: 34048989 DOI: 10.1016/j.acthis.2021.151734] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 04/28/2021] [Accepted: 05/17/2021] [Indexed: 12/31/2022]
Abstract
Rat hippocampal neurons were isolated and divided into Normal, oxygen glucose deprivation/reoxygenation (OGD/R), OGD/R + DEX, OGD/R + NC mimic, OGD/R + miR-155 mimic and OGD/R + DEX + miR-155 mimic groups. In OGD/R group, LDH, ROS and MDA levels and apoptosis rate was increased, with up-regulations of miR-155, Cyt c and Bax/Bcl-2 ratio, but decreases of SOD, GSH-Px and MMP levels, as well as down-regulations of p-ERK1/2/ERK1/2. As compared to the OGD/R group, parameters above in the OGD/R + DEX group were ameliorated evidently, while OGD/R + miR-155 mimic group manifested the opposite changes. Besides, miR-155 mimic could abolish the protective effect of DEX on the hippocampal neurons under OGD/R. DEX, via down-regulating the expression of miR-155, could activate the ERK1/2 pathway, thereby mitigating the apoptosis and oxidative stress injury and increasing the MMP, thereby protecting hippocampal cells from OGD/R injury.
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13
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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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14
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Ojulari OV, Chae JB, Lee SG, Min K, Kwon TK, Nam JO. Apoptotic effect of jaceosidin on MCF-7 human breast cancer cells through modulation of ERK and p38 MAPK pathways. Nat Prod Res 2020; 35:6049-6053. [PMID: 32924593 DOI: 10.1080/14786419.2020.1817917] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Jaceosidin a flavone abundant in Artemisia species has been used for its beneficial effects. This study investigated the apoptotic effect of jaceosidin treatment on MCF-7 human breast cancer cells at varying concentrations of (0, 10, 20 and 40 µM) for 24 and 48 h treatment times. Jaceosidin treatment induced a significant (p < 0.05) dose-dependent increase in apoptosis of MCF-7 cells. Jaceosidin similarly modulated the expressions of apoptosis-associated proteins, and revealing a coaction between Bax and Bcl-2, striking a balance between cell survival/cell deaths. Besides, a significant increase in pro-apoptotic expression of cleaved PARP which is a key executioner in apoptosis was observed. Apoptosis was confirmed in the cells by flow cytometry which indicated an early apoptosis (7%, 17%), as well as late apoptosis (36%, 40%) of the cells in varying percentages as treatment concentration increased. Thus, this study demonstrates that jaceosidin could be used as a potential treatment for breast cancer.
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Affiliation(s)
- Oyindamola Vivian Ojulari
- Department of Food Science and Biotechnology, Kyungpook National University, Daegu, Republic of Korea
| | - Jong-Beom Chae
- Department of Food Science and Biotechnology, Kyungpook National University, Daegu, Republic of Korea
| | - Seul Gi Lee
- Department of Food Science and Biotechnology, Kyungpook National University, Daegu, Republic of Korea
| | - Kyoungjin Min
- Department of Immunology, School of Medicine, Keimyung University, Daegu, Republic of Korea
| | - Taeg Kyu Kwon
- Department of Immunology, School of Medicine, Keimyung University, Daegu, Republic of Korea
| | - Ju-Ock Nam
- Department of Food Science and Biotechnology, Kyungpook National University, Daegu, Republic of Korea.,Department of Immunology, School of Medicine, Keimyung University, Daegu, Republic of Korea.,Institute of Agricultural Science and Technology, Kyungpook National University, Daegu, Republic of Korea
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15
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Zhou D, Yang WK, Zhang YF, Xie JH, Ma L, Yang HD, Li Y, Xie P. Sodium tanshinone IIA sulfonate prevents radiation-induced damage in primary rat cardiac fibroblasts. Chin J Nat Med 2020; 18:436-445. [PMID: 32503735 DOI: 10.1016/s1875-5364(20)30051-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Indexed: 12/19/2022]
Abstract
This study investigated the effects of X-ray irradiation on primary rat cardiac fibroblasts (CFs) and its potential mechanism, as well as whether sodium tanshinone IIA sulfonate (STS) has protective effect on CFs and its possible mechanism. Our data demonstrated that X-rays inhibited cell growth and increased oxidative stress in CFs, and STS mitigated X-ray-induced injury. Enzyme-linked immuno-sorbent assay showed that X-rays increased the levels of secreted angiotensin II (Ang II) and brain natriuretic peptide (BNP). STS inhibited the X-ray-induced increases in Ang II and BNP release. Apoptosis and cell cycle of CFs were analyzed using flow cytometry. X-rays induced apoptosis in CFs, whereas STS inhibited apoptosis in CFs after X-ray irradiation. X-rays induced S-phase cell cycle arrest in CFs, which could be reversed by STS. X-rays increased the expression of phosphorylated-P38/P38, cleaved caspase-3 and caspase-3 as well as decreased the expression of phosphorylated extracellular signal-regulated kinase 1/2 (ERK 1/2)/ERK 1/2 and B cell lymphoma 2 (Bcl-2)/Bcl-2 associated X protein (BAX) in CFs, as shown by Western blotting. STS mitigated the X-ray radiation-induced expression changes of these proteins. In conclusion, our results demonstrated that STS may potentially be developed as a medical countermeasure to mitigate radiation-induced cardiac damage.
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Affiliation(s)
- Dan Zhou
- Department of Cardiology, Gansu Provincial Hospital, Lanzhou 730000, China; School of Clinical Medicine, Gansu University of Chinese Medicine, Lanzhou 730000, China
| | - Wen-Ke Yang
- School of Basic Medical Science, Lanzhou University, Lanzhou 730000, China
| | - Yi-Fan Zhang
- Department of Cardiology, Gansu Provincial Hospital, Lanzhou 730000, China; Ningxia Medical University, Yinchuan 750004, China
| | - Jin-Hui Xie
- Gansu Provincial Hospital, Lanzhou 730000, China
| | - Li Ma
- Department of Cardiology, Gansu Provincial Hospital, Lanzhou 730000, China; Ningxia Medical University, Yinchuan 750004, China
| | | | - Yi Li
- School of Stomatology, Lanzhou University, Lanzhou 730000, China.
| | - Ping Xie
- Department of Cardiology, Gansu Provincial Hospital, Lanzhou 730000, China.
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16
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Maitra S, Bhattacharya D, Das S, Bhattacharya S. Melatonin and its anti-glioma functions: a comprehensive review. Rev Neurosci 2020; 30:527-541. [PMID: 30645197 DOI: 10.1515/revneuro-2018-0041] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Accepted: 09/07/2018] [Indexed: 01/20/2023]
Abstract
Melatonin (N-acetyl-5-methoxytryptamine) is a naturally synthesized hormone secreted from the pineal gland in a variety of animals and is primarily involved in the regulation of the circadian rhythm, which is the natural cycle controlling sleep in organisms. Melatonin acts on specific receptors and has an important role in overall energy metabolism. This review encompasses several aspects of melatonin activity, such as synthesis, source, structure, distribution, function, signaling and its role in normal physiology. The review highlights the cellular signaling and messenger systems involved in melatonin's action on the body and their wider implications, the distribution and diverse action of different melatonin receptors in specific areas of the brain, and the pharmacological agonists and antagonists that have specific action on these melatonin receptors. This review also incorporates the antitumor effects of melatonin in considerable detail, emphasizing on melatonin's role as an adjuvant therapeutic agent in glioma treatment. We conclude that the diminishing levels of melatonin have significant debilitating effects on normal physiology and can also be associated with malignant conditions such as glioma. Based on the review of the available evidence, our study provides a broad platform for a better understanding of the specific roles of melatonin and serves as a starting point for further investigation into the therapeutic effect of melatonin in glioma as an adjuvant therapeutic agent.
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Affiliation(s)
- Sayantan Maitra
- Department of Health and Family Welfare, Institute of Pharmacy, Jalpaiguri 735101, Govt. of West Bengal, India
| | - Debanjan Bhattacharya
- Department of Neurosurgery, Winship Cancer Institute of Emory University, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Stabak Das
- Department of Health and Family Welfare, Institute of Pharmacy, Jalpaiguri 735101, Govt. of West Bengal, India
| | - Subhrajit Bhattacharya
- Department of Pharmacology, Rollins Research Center, Emory University School of Medicine, 1510 Cliffton Rd. NE, Atlanta, GA 30303-3073, USA
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17
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Ma N, Zhang J, Reiter RJ, Ma X. Melatonin mediates mucosal immune cells, microbial metabolism, and rhythm crosstalk: A therapeutic target to reduce intestinal inflammation. Med Res Rev 2020; 40:606-632. [PMID: 31420885 DOI: 10.1002/med.21628] [Citation(s) in RCA: 91] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Revised: 07/22/2019] [Accepted: 07/26/2019] [Indexed: 12/12/2022]
Abstract
Nowadays, melatonin, previously considered only as a pharmaceutical product for rhythm regulation and sleep aiding, has shown its potential as a co-adjuvant treatment in intestinal diseases, however, its mechanism is still not very clear. A firm connection between melatonin at a physiologically relevant concentration and the gut microbiota and inflammation has recently established. Herein, we summarize their crosstalk and focus on four novelties. First, how melatonin is synthesized and degraded in the gut and exerts potentially diverse phenotypic effects through its diverse metabolites. Second, how melatonin mediates the activation and proliferation of intestinal mucosal immune cells with paracrine and autocrine properties. By modulating T/B cells, mast cells, macrophages and dendritic cells, melatonin immunomodulatory involved in regulating T-cell differentiation, intervening T/B cell interaction and attenuating the production of pro-inflammatory factors, achieving its antioxidant action via specific receptors. Third, how melatonin exerts antimicrobial action and modulates microbial components, such as lipopolysaccharide, amyloid-β peptides via nuclear factor κ-light-chain-enhancer of activated B cells (NF-κB) or signal transducers and activators of transcription (STAT1) pathway to modulate intestinal immune function in immune-pineal axis. The last, how melatonin mediates the effect of intestinal bacterial activity signals on the body rhythm system through the NF-κB pathway and influences the mucosal epithelium oscillation via clock gene expression. These processes are achieved at mitochondrial and nuclear levels to control the host immune cell development. Considering unclear mechanisms and undiscovered actions of melatonin in gut-microbiome-immune axis, it's time to reveal them and provide new insight for the outlook of melatonin as a potential therapeutic target in the treatment and management of intestinal diseases.
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Affiliation(s)
- Ning Ma
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Jie Zhang
- Animal Husbandry and Veterinary Department, Beijing Vocational College of Agriculture, Beijing, China
| | - Russel J Reiter
- Department of Cellular and Structural Biology, University of Texas Health Science Center, San Antonio, Texas
| | - Xi Ma
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
- Department of Internal Medicine and Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, Texas
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18
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Sapio L, Salzillo A, Illiano M, Ragone A, Spina A, Chiosi E, Pacifico S, Catauro M, Naviglio S. Chlorogenic acid activates ERK1/2 and inhibits proliferation of osteosarcoma cells. J Cell Physiol 2019; 235:3741-3752. [PMID: 31602671 DOI: 10.1002/jcp.29269] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Accepted: 09/27/2019] [Indexed: 12/14/2022]
Abstract
Osteosarcoma (OS) is a very aggressive metastatic pediatric and adolescent tumor. Due to its recurrent development of chemotherapy resistance, clinical outcome for OS patients remains poor. Therefore, discovering more effective anticancer agents is needed. Chlorogenic acid (CGA) is a phenolic compound contained in plant-related products that modulates many cellular functions and inhibits cell proliferation in several cancer types. However, few evidence is available in OS. Here, we investigate the effects of CGA in U2OS, Saos-2, and MG-63 OS cells. By multiple approaches, we demonstrate that CGA acts as anticancer molecule affecting the cell cycle and provoking cell growth inhibition mainly by apoptosis induction. We also provide evidence that CGA strongly activates extracellular-signal-regulated kinase1/2 (ERK1/2). Strikingly, ERK1/2 inhibitor PD98059 sensitizes the cells to CGA. Altogether, our data enforce the evidence of the anticancer activity mediated by CGA and provide the rationale for the development of innovative therapeutic strategies in OS cure.
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Affiliation(s)
- Luigi Sapio
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Alessia Salzillo
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Michela Illiano
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Angela Ragone
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Annamaria Spina
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Emilio Chiosi
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Severina Pacifico
- Department Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania "Luigi Vanvitelli", Caserta, Italy
| | - Michelina Catauro
- Department of Engineering, University of Campania "Luigi Vanvitelli", Aversa, Italy
| | - Silvio Naviglio
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
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19
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Knani L, Bartolini D, Kechiche S, Tortoioli C, Murdolo G, Moretti M, Messaoudi I, Reiter RJ, Galli F. Melatonin prevents cadmium-induced bone damage: First evidence on an improved osteogenic/adipogenic differentiation balance of mesenchymal stem cells as underlying mechanism. J Pineal Res 2019; 67:e12597. [PMID: 31340072 DOI: 10.1111/jpi.12597] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 06/25/2019] [Accepted: 06/28/2019] [Indexed: 12/13/2022]
Abstract
Melatonin (MLT) plays a role in preserving bone health, a function that may depend on homeostatic effects on both mature osteoblasts and mesenchymal stem cells (MSCs) of the bone tissue. In this study, these functions of MLT have been investigated in rat bone (femur) and in human adipose MSC (hMSC) during chronic exposure to low-grade cadmium (Cd) toxicity, a serious public health concern. The in vivo findings demonstrate that MLT protects against Cd-induced bone metabolism disruption and accumulation of bone marrow adipocytes, a cue of impaired osteogenic potential of skeletal MSC niches. This latter symptom was recapitulated in hMSCs in which Cd toxicity stimulated adipogenic differentiation. MLT was found to rescue, at least in part, the osteogenic differentiation properties of these cells. This study reports on a new bone cytoprotection function of MLT pertinent to Cd toxicity and its interfering effect on skeletal MSC differentiation properties that is worth investigating for its possible impact on human bone pathophysiology.
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Affiliation(s)
- Latifa Knani
- Laboratoire LR11ES41 Génétique Biodiversité et Valorisation des Bio-ressources, Institut Supérieur de Biotechnologie de Monastir, Université de Monastir, Monastir, Tunisie
| | - Desirée Bartolini
- Department of Pharmaceutical Sciences, University of Perugia, Perugia, Italy
| | - Safa Kechiche
- Laboratoire LR11ES41 Génétique Biodiversité et Valorisation des Bio-ressources, Institut Supérieur de Biotechnologie de Monastir, Université de Monastir, Monastir, Tunisie
| | - Cristina Tortoioli
- Section of Internal Medicine, Endocrine and Metabolic Sciences, University of Perugia, Perugia, Italy
| | - Giuseppe Murdolo
- Section of Internal Medicine, Endocrine and Metabolic Sciences, University of Perugia, Perugia, Italy
| | - Massimo Moretti
- Department of Pharmaceutical Sciences, University of Perugia, Perugia, Italy
| | - Imed Messaoudi
- Laboratoire LR11ES41 Génétique Biodiversité et Valorisation des Bio-ressources, Institut Supérieur de Biotechnologie de Monastir, Université de Monastir, Monastir, Tunisie
| | - Russel J Reiter
- Department of Cellular and Structural Biology, UT Health Science Center, San Antonio, TX, USA
| | - Francesco Galli
- Department of Pharmaceutical Sciences, University of Perugia, Perugia, Italy
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20
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Sambucus nigra L. ameliorates UVB-induced photoaging and inflammatory response in human skin keratinocytes. Cytotechnology 2019; 71:1003-1017. [PMID: 31512082 DOI: 10.1007/s10616-019-00342-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Accepted: 09/06/2019] [Indexed: 12/14/2022] Open
Abstract
Sambucus nigra L. (Elderberry) is widely used as a dietary supplement in functional food and possesses many pharmacological activities to prevent ailments, such as the colds and fever, diabetes and cancer. However, research on its skin anti-aging effect is still limited. Here, we evaluated the recovery effects of elderberry extract (EB) in UVB-irradiated human skin keratinocytes (HaCaTs) and investigated whether EB represents a potential therapeutic agent against skin photoaging and inflammation. In this study, EB showed good efficiency on scavenging free radicals and dose-dependently reduced reactive oxygen species (ROS) generation. EB notably decreased UVB-induced matrix metalloproteinase-1 (MMP-1) expression and inflammatory cytokine secretion through the inhibition of mitogen-activated protein kinases/activator protein 1 (MAPK/AP-1) and nuclear factor-κB (NF-κB) signaling pathways, blocking extracellular matrix (ECM) degradation and inflammation in UVB-irradiated HaCaTs. In addition, EB improved nuclear factor E2-related factor 2/heme oxygenase-1 (Nrf2/HO-1) signaling to increase oxidative defense capacity, and enhanced transforming growth factor beta (TGF-β) signaling activation to promote procollagen type I synthesis, relieving UVB-induced skin cell damage. These results indicated that EB has the potential to ameliorate UVB-induced skin photoaging and inflammation.
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21
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Mirza-Aghazadeh-Attari M, Mohammadzadeh A, Mostavafi S, Mihanfar A, Ghazizadeh S, Sadighparvar S, Gholamzadeh S, Majidinia M, Yousefi B. Melatonin: An important anticancer agent in colorectal cancer. J Cell Physiol 2019; 235:804-817. [PMID: 31276205 DOI: 10.1002/jcp.29049] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Accepted: 06/12/2019] [Indexed: 12/11/2022]
Abstract
Colorectal cancer is one of the most common cancers among the elderly, which is also seen in the forms of hereditary syndromes occurring in younger individuals. Numerous studies have been conducted to understand the molecular and cellular pathobiology underlying colorectal cancer. These studies have found that cellular signaling pathways are at the core of colorectal cancer pathology. Because of this, new agents have been proposed as possible candidates to accompany routine therapy regimens. One of these agents is melatonin, a neuro-hormone known best for its essential role in upholding the circadian rhythm and orchestrating the many physiologic changes it accompanies. Melatonin is shown to be able to modulate many signaling pathways involved in many essential cell functions, which if deregulated cause an accelerated pace towards cancer. More so, melatonin is involved in the regulation of immune function, tumor microenvironment, and acts as an antioxidant agent. Many studies have focused on the beneficial effects of melatonin in colorectal cancers, such as induction of apoptosis, increased sensitivity to chemotherapy agents and radiotherapy, limiting cellular proliferation, migration, and invasion. The present review aims to illustrate the known significance of melatonin in colorectal cancer and to address possible clinical use.
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Affiliation(s)
- Mohammad Mirza-Aghazadeh-Attari
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran.,Aging Research Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Amir Mohammadzadeh
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran.,Aging Research Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Soroush Mostavafi
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran.,Aging Research Institute, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Aynaz Mihanfar
- Department of Biochemistry, Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Saber Ghazizadeh
- Danesh Pey Hadi Co., Health Technology Development Center, Urmia University of Medical Sciences, Urmia, Iran
| | - Shirin Sadighparvar
- Neurophysiology Research Center, Urmia University of Medical Sciences, Urmia, Iran
| | | | - Maryam Majidinia
- Solid Tumor Research Center, Urmia University of Medical Sciences, Urmia, Iran
| | - Bahman Yousefi
- Molecular Medicine Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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22
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An insight into the scientific background and future perspectives for the potential uses of melatonin. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.ejbas.2015.05.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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23
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Giordano FM, Burattini S, Buontempo F, Canonico B, Martelli AM, Papa S, Sampaolesi M, Falcieri E, Salucci S. Diet Modulation Restores Autophagic Flux in Damaged Skeletal Muscle Cells. J Nutr Health Aging 2019; 23:739-745. [PMID: 31560032 DOI: 10.1007/s12603-019-1245-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
OBJECTIVES Autophagy is a physiological and highly regulated mechanism, crucial for cell homeostasis maintenance. Its impairment seems to be involved in the onset of several diseases, including muscular dystrophies, myopathies and sarcopenia. According to few papers, chemotherapeutic drug treatment is able to trigger side effects on skeletal muscle tissue and, among these, a defective autophagic activation, which leads to the persistence of abnormal organelles within cells and, finally, to myofiber degeneration. The aim of this work is to find a strategy, based on diet modulation, to prevent etoposide-induced damage, in a model of in vitro skeletal muscle cells. METHODS Glutamine supplementation and nutrient deprivation have been chosen as pre-treatments to counteract etoposide effect, a chemotherapeutic drug known to induce oxidative stress and cell death. Cell response has been evaluated by means of morpho-functional, cytofluorimetric and molecular analyses. RESULTS Etoposide treated cells, if compared to control, showed dysfunctional mitochondria presence, ER stress and lysosomal compartment damage, confirmed by molecular investigations. CONCLUSIONS Interestingly, both dietary approaches were able to rescue myofiber from etoposide-induced damage. Glutamine supplementation, in particular, seemed to be a good strategy to preserve cell ultrastructure and functionality, by preventing the autophagic impairment and partially restoring the normal lysosomal activity, thus maintaining skeletal muscle homeostasis.
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Affiliation(s)
- F M Giordano
- Sara Salucci, Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy,
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Hinojosa-Godinez A, Jave-Suarez LF, Flores-Soto M, Gálvez-Contreras AY, Luquín S, Oregon-Romero E, González-Pérez O, González-Castañeda RE. Melatonin modifies SOX2 + cell proliferation in dentate gyrus and modulates SIRT1 and MECP2 in long-term sleep deprivation. Neural Regen Res 2019; 14:1787-1795. [PMID: 31169197 PMCID: PMC6585545 DOI: 10.4103/1673-5374.257537] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Melatonin is a pleiotropic molecule that, after a short-term sleep deprivation, promotes the proliferation of neural stem cells in the adult hippocampus. However, this effect has not been observed in long-term sleep deprivation. The precise mechanism exerted by melatonin on the modulation of neural stem cells is not entirely elucidated, but evidence indicates that epigenetic regulators may be involved in this process. In this study, we investigated the effect of melatonin treatment during a 96-hour sleep deprivation and analyzed the expression of epigenetic modulators predicted by computational text mining and keyword clusterization. Our results showed that the administration of melatonin under sleep-deprived conditions increased the MECP2 expression and reduced the SIRT1 expression in the dentate gyrus. We observed that let-7b, mir-132, and mir-124 were highly expressed in the dentate gyrus after melatonin administration, but they were not modified by sleep deprivation. In addition, we found more Sox2+/5-bromo-2′-deoxyuridine (BrdU)+ cells in the subgranular zone of the sleep-deprived group treated with melatonin than in the untreated group. These findings may support the notion that melatonin modifies the expression of epigenetic mediators that, in turn, regulate the proliferation of neural progenitor cells in the adult dentate gyrus under long-term sleep-deprived conditions. All procedures performed in this study were approved by the Animal Ethics Committee of the University of Guadalajara, Mexico (approval No. CI-16610) on January 2, 2016.
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Affiliation(s)
- Alan Hinojosa-Godinez
- Laboratorio de Microscopía de Alta Resolución, Departamento de Neurociencias, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, México
| | - Luis F Jave-Suarez
- División de Inmunología, Centro de Investigación Biomédica de Occidente, Instituto Mexicano del Seguro Social, Guadalajara, México
| | - Mario Flores-Soto
- División de Neurociencias, Centro de Investigación Biomédica de Occidente, Instituto Mexicano del Seguro Social, Guadalajara, México
| | - Alma Y Gálvez-Contreras
- Laboratorio de Microscopía de Alta Resolución, Departamento de Neurociencias; Unidad de Atención en Neurociencias, Departamento de Neurociencias, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, México
| | - Sonia Luquín
- Laboratorio de Microscopía de Alta Resolución, Departamento de Neurociencias, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, México
| | - Edith Oregon-Romero
- Instituto de Investigación en Ciencias Biomédicas (IICB), Departamento de Biología Molecular y Genómica, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, México
| | - Oscar González-Pérez
- Laboratorio de Neurociencias, Facultad de Psicología, Universidad de Colima, Colima, México
| | - Rocio E González-Castañeda
- Laboratorio de Microscopía de Alta Resolución, Departamento de Neurociencias; Unidad de Atención en Neurociencias, Departamento de Neurociencias, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, México
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25
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Wang Y, Zeng S. Melatonin Promotes Ubiquitination of Phosphorylated Pro-Apoptotic Protein Bcl-2-Interacting Mediator of Cell Death-Extra Long (Bim EL) in Porcine Granulosa Cells. Int J Mol Sci 2018; 19:ijms19113431. [PMID: 30388852 PMCID: PMC6274928 DOI: 10.3390/ijms19113431] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 10/27/2018] [Accepted: 10/27/2018] [Indexed: 12/31/2022] Open
Abstract
Melatonin (N-acetyl-5-methoxytryptamine) is found in ovarian follicular fluid, and its concentration is closely related to follicular health status. Nevertheless, the molecular mechanisms underlying melatonin function in follicles are uncertain. In this study, melatonin concentration was measured in porcine follicular fluid at different stages of health. The melatonin concentration decreased as the follicles underwent atresia, suggesting that melatonin may participate in the maintenance of follicular health. The molecular pathway through which melatonin may regulate follicular development was further investigated. The pro-apoptotic protein BimEL (Bcl-2-interacting mediator of cell death-Extra Long), a key protein controlling granulosa cell apoptosis during follicular atresia, was selected as the target molecule. BimEL was downregulated when porcine granulosa cells were cultured in medium containing 10−9 M melatonin and isolated cumulus oocyte complexes (COCs) or follicle stimulating hormone (FSH). Interestingly, ERK-mediated phosphorylation was a prerequisite for the melatonin-induced decline in BimEL, and melatonin only promoted the ubiquitination of phosphorylated BimEL, and did not affect the activities of the lysosome or the proteasome. Moreover, the melatonin-induced downregulation of BimEL was independent of its receptor and its antioxidant properties. In conclusion, melatonin may maintain follicular health by inducing BimEL ubiquitination to inhibit the apoptosis of granulosa cells.
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Affiliation(s)
- Yingzheng Wang
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China.
| | - Shenming Zeng
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China.
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26
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Russo A, Bartolini D, Mensà E, Torquato P, Albertini MC, Olivieri F, Testa R, Rossi S, Piroddi M, Cruciani G, De Feo P, Galli F. Physical Activity Modulates the Overexpression of the Inflammatory miR-146a-5p in Obese Patients. IUBMB Life 2018; 70:1012-1022. [PMID: 30212608 DOI: 10.1002/iub.1926] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Revised: 05/27/2018] [Accepted: 06/11/2018] [Indexed: 01/30/2023]
Abstract
Specific microRNAs (miRs), including the "angio-miR-126" and the "inflamma-miR-146a-5p," have been proposed as biomarkers and even therapeutic targets of obesity-associated metabolic diseases. Physical activity, a key measure of prevention for obesity and its complications, is reported to influence the expression of these miRs. In this study, we investigate whether a physical activity program proven to improve metabolic parameters in obese patients can correct the circulating levels of these miRs. Plasma miR-126 and miR-146a-5p were measured in a cohort of obese patients (n = 31, 16F + 15M) before and after the 3-month physical activity program of the CURIAMO trial (registration number for clinical trials: ACTRN12611000255987) and in 37 lean controls (24F + 13M). miR-146a-5p, but not miR-126, was significantly increased in obese patients as compared with lean controls and decreased in approximately two-thirds of the participants post-intervention with a response that positively correlated with pre-intervention levels of this miR. Waist circumference, the inflammatory cytokine IL-8 and lipid parameters, principally total cholesterol, showed the strongest correlation with both the baseline levels and post-intervention correction of miR-146a-5p. Post-hoc analysis of experimental data supports the use of miR-146a-5p as a biomarker and predictor of the clinical response to physical activity in obese patients. Furthermore, miR-146a-5p expression was confirmed to increase together with that of the inflammatory genes TLR4, NF-κB, IL-6, and TNF-α in LPS-stimulated human mononuclear leukocytes. In conclusion, the inflamma-miR-146a-5p can serve as a personalized predictor of clinical outcome in obese patients entering physical activity weight-reduction programs. © 2018 IUBMB Life, 70(10):1012-1022, 2018.
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Affiliation(s)
- Angelo Russo
- Department of Pharmaceutical Sciences, University of Perugia, Perugia, Italy.,"Centro Universitario di Ricerca Interdipartimentale sull' Attività Motoria", University of Perugia, Perugia, Italy
| | - Desireé Bartolini
- Department of Pharmaceutical Sciences, University of Perugia, Perugia, Italy
| | - Emanuela Mensà
- Experimental Models in Clinical Pathology, IRCCS INRCA National Institute, Ancona, Italy
| | - Pierangelo Torquato
- Department of Pharmaceutical Sciences, University of Perugia, Perugia, Italy
| | | | - Fabiola Olivieri
- Center of Clinical Pathology and Innovative Therapy, Italian National Research Center on Aging (IRCCS INRCA), Ancona, Italy.,Department of Clinical and Molecular Sciences, DISCLIMO, Università Politecnica delle Marche, Ancona, Italy
| | - Roberto Testa
- Experimental Models in Clinical Pathology, IRCCS INRCA National Institute, Ancona, Italy
| | - Sara Rossi
- Center of Clinical Pathology and Innovative Therapy, Italian National Research Center on Aging (IRCCS INRCA), Ancona, Italy
| | - Marta Piroddi
- Department of Pharmaceutical Sciences, University of Perugia, Perugia, Italy
| | - Gabriele Cruciani
- Department of Chemistry, Biology and Biotechnology, University of Perugia, Perugia, Italy
| | - Pierpaolo De Feo
- "Centro Universitario di Ricerca Interdipartimentale sull' Attività Motoria", University of Perugia, Perugia, Italy
| | - Francesco Galli
- Department of Pharmaceutical Sciences, University of Perugia, Perugia, Italy
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27
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Cesarini E, Cerioni L, Canonico B, Di Sario G, Guidarelli A, Lattanzi D, Savelli D, Guescini M, Nasoni MG, Bigini N, Cuppini R, Stocchi V, Ambrogini P, Papa S, Luchetti F. Melatonin protects hippocampal HT22 cells from the effects of serum deprivation specifically targeting mitochondria. PLoS One 2018; 13:e0203001. [PMID: 30157259 PMCID: PMC6114848 DOI: 10.1371/journal.pone.0203001] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Accepted: 08/13/2018] [Indexed: 02/07/2023] Open
Abstract
Neurons contain a high number of mitochondria, these neuronal cells produce elevated levels of oxidative stress and live for a long time without proliferation; therefore, mitochondrial homeostasis is crucial to their health. Investigations have recently focused on mitochondrial dynamics revealing the ability of these organelles to change their distribution and morphology. It is known that mitochondrial fission is necessary for the transmission of mitochondria to daughter cells during mitosis and mitochondrial fragmentation has been used as an indicator of cell death and mitochondrial dysfunction. Oxidative stress is a trigger able to induce changes in the mitochondrial network. The aim of the present study was to determine the effects of melatonin on the mitochondrial network in HT22 serum-deprived cells. Our results showed that serum deprivation increased reactive oxygen species (ROS) content, promoted the activation of plasma membrane voltage-dependent anion channels (VDACs) and affected the expression of pDRP1 and DRP1 fission proteins. Moreover, parallel increases in apoptotic and autophagic features were found. Damaged and dysfunctional mitochondria are deleterious to the cell; hence, the degradation of such mitochondria through mitophagy is crucial to cell survival. Our results suggest that melatonin supplementation reduces cell death and restores mitochondrial function through the regulation of autophagy.
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Affiliation(s)
- Erica Cesarini
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy
| | - Liana Cerioni
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy
| | - Barbara Canonico
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy
| | - Gianna Di Sario
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy
| | - Andrea Guidarelli
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy
| | - Davide Lattanzi
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy
| | - David Savelli
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy
| | - Michele Guescini
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy
| | - Maria Gemma Nasoni
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy
| | - Noemi Bigini
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy
| | - Riccardo Cuppini
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy
| | - Vilberto Stocchi
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy
| | - Patrizia Ambrogini
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy
| | - Stefano Papa
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy
| | - Francesca Luchetti
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy
- * E-mail:
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28
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Cecon E, Oishi A, Jockers R. Melatonin receptors: molecular pharmacology and signalling in the context of system bias. Br J Pharmacol 2018; 175:3263-3280. [PMID: 28707298 PMCID: PMC6057902 DOI: 10.1111/bph.13950] [Citation(s) in RCA: 144] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Revised: 07/05/2017] [Accepted: 07/10/2017] [Indexed: 12/15/2022] Open
Abstract
Melatonin, N-acetyl-5-methoxytryptamine, an evolutionally old molecule, is produced by the pineal gland in vertebrates, and it binds with high affinity to melatonin receptors, which are members of the GPCR family. Among the multiple effects attributed to melatonin, we will focus here on those that are dependent on the activation of the two mammalian MT1 and MT2 melatonin receptors. We briefly summarize the latest developments on synthetic melatonin receptor ligands, including multi-target-directed ligands, and the characterization of signalling-biased ligands. We discuss signalling pathways activated by melatonin receptors that appear to be highly cell- and tissue-dependent, emphasizing the impact of system bias on the functional outcome. Different proteins have been demonstrated to interact with melatonin receptors, and thus, we postulate that part of this system bias has its molecular basis in differences of the expression of receptor-associated proteins including heterodimerization partners. Finally, bias at the level of the receptor, by the expression of genetic receptor variants, will be discussed to show how a modified receptor function can have an effect on the risk for common diseases like type 2 diabetes in humans. LINKED ARTICLES: This article is part of a themed section on Recent Developments in Research of Melatonin and its Potential Therapeutic Applications. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v175.16/issuetoc.
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Affiliation(s)
- Erika Cecon
- Institut CochinInserm, U1016ParisFrance
- CNRS UMR 8104ParisFrance
- Univ. Paris Descartes, Sorbonne Paris CitéParisFrance
| | - Atsuro Oishi
- Institut CochinInserm, U1016ParisFrance
- CNRS UMR 8104ParisFrance
- Univ. Paris Descartes, Sorbonne Paris CitéParisFrance
| | - Ralf Jockers
- Institut CochinInserm, U1016ParisFrance
- CNRS UMR 8104ParisFrance
- Univ. Paris Descartes, Sorbonne Paris CitéParisFrance
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29
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Melatonin: A New-Generation Therapy for Reducing Chronic Pain and Improving Sleep Disorder-Related Pain. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1099:229-251. [DOI: 10.1007/978-981-13-1756-9_19] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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30
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Hwang E, Lin P, Ngo HTT, Gao W, Wang YS, Yu HS, Yi TH. Icariin and icaritin recover UVB-induced photoaging by stimulating Nrf2/ARE and reducing AP-1 and NF-κB signaling pathways: a comparative study on UVB-irradiated human keratinocytes. Photochem Photobiol Sci 2018; 17:1396-1408. [DOI: 10.1039/c8pp00174j] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Icariin (ICA) and icaritin (ICT) have potential to treat UVB-induced skin oxidative stress, inflammation and photoaging.
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Affiliation(s)
- Eunson Hwang
- College of Life Science
- Kyung Hee University
- Yongin-si
- Republic of Korea
| | - Pei Lin
- College of Life Science
- Kyung Hee University
- Yongin-si
- Republic of Korea
| | - Hien T. T. Ngo
- College of Life Science
- Kyung Hee University
- Yongin-si
- Republic of Korea
| | - Wei Gao
- College of Life Science
- Kyung Hee University
- Yongin-si
- Republic of Korea
| | - Yu-Shuai Wang
- College of Life Science
- Kyung Hee University
- Yongin-si
- Republic of Korea
| | - Hong-Shan Yu
- College of Biotechnology
- Dalian Polytechnic University
- Dalian
- PR China
| | - Tae-Hoo Yi
- College of Life Science
- Kyung Hee University
- Yongin-si
- Republic of Korea
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31
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Monllor F, Espino J, Marchena AM, Ortiz Á, Lozano G, García JF, Pariente JA, Rodríguez AB, Bejarano I. Melatonin diminishes oxidative damage in sperm cells, improving assisted reproductive techniques. Turk J Biol 2017; 41:881-889. [PMID: 30814853 DOI: 10.3906/biy-1704-45] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Sperm preparation procedures are a potential generator of oxidative stress-induced DNA damage, which leads to a dramatic drop in fertility. An increasing number of studies suggest that melatonin reduces the oxidative stress induced by manipulation. However, very little is known about the preservative role of melatonin in sperm preparation medium during assisted reproduction procedures. For this aim to be achieved, semen was divided into two fractions and preincubated with and without 1 mM melatonin. Afterwards, both fractions were divided into two subfractions to perform swim-up in the presence and absence of 1 mM melatonin. Labeling with anti-CD46 and antiactive caspase-3 allowed the monitoring of acrosome reaction and apoptosis by flow cytometry. Sperm DNA fragmentation and compaction were analyzed through propidium iodide staining. The normozoospermic and oligozoospermic samples that were preincubated with melatonin underwent a significant increase in the ratio of adequate spermatozoa and a reduction of caspase-3 activation. Additionally, preincubation with melatonin enhanced the migration of sperm cells with compacted DNA in oligozoospermic samples (P < 0.05) and prevented DNA fragmentation in normozoospermic samples (P < 0.05). In light of the current results, the cytoprotective capacity and innocuousness of melatonin make it a great candidate to be applied in assisted reproduction techniques in order to prevent triaogenic oxidative damage.
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Affiliation(s)
- Fabián Monllor
- Centre for Human Assisted Reproduction (CERHA) , Badajoz , Spain.,Department of Physiology, Faculty of Science, University of Extremadura , Badajoz , Spain
| | - Javier Espino
- Department of Physiology, Faculty of Science, University of Extremadura , Badajoz , Spain
| | - Ana María Marchena
- Department of Physiology, Faculty of Science, University of Extremadura , Badajoz , Spain
| | - Águeda Ortiz
- Centre for Human Assisted Reproduction (CERHA) , Badajoz , Spain
| | - Graciela Lozano
- Centre for Human Assisted Reproduction (CERHA) , Badajoz , Spain
| | | | - José Antonio Pariente
- Department of Physiology, Faculty of Science, University of Extremadura , Badajoz , Spain
| | - Ana Beatriz Rodríguez
- Department of Physiology, Faculty of Science, University of Extremadura , Badajoz , Spain
| | - Ignacio Bejarano
- Department of Physiology, Faculty of Science, University of Extremadura , Badajoz , Spain
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32
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Crooke A, Huete-Toral F, Colligris B, Pintor J. The role and therapeutic potential of melatonin in age-related ocular diseases. J Pineal Res 2017; 63. [PMID: 28658514 DOI: 10.1111/jpi.12430] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Accepted: 06/23/2017] [Indexed: 12/20/2022]
Abstract
The eye is continuously exposed to solar UV radiation and pollutants, making it prone to oxidative attacks. In fact, oxidative damage is a major cause of age-related ocular diseases including cataract, glaucoma, age-related macular degeneration, and diabetic retinopathy. As the nature of lens cells, trabecular meshwork cells, retinal ganglion cells, retinal pigment epithelial cells, and photoreceptors is postmitotic, autophagy plays a critical role in their cellular homeostasis. In age-related ocular diseases, this process is impaired, and thus, oxidative damage becomes irreversible. Other conditions such as low-grade chronic inflammation and angiogenesis also contribute to the development of retinal diseases (glaucoma, age-related macular degeneration and diabetic retinopathy). As melatonin is known to have remarkable qualities such as antioxidant/antinitridergic, mitochondrial protector, autophagy modulator, anti-inflammatory, and anti-angiogenic, it can represent a powerful tool to counteract all these diseases. The present review analyzes the role and therapeutic potential of melatonin in age-related ocular diseases, focusing on nitro-oxidative stress, autophagy, inflammation, and angiogenesis mechanisms.
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Affiliation(s)
- Almudena Crooke
- Department of Biochemistry and Molecular Biology IV, Group Ocupharm, Faculty of Optics and Optometry, Universidad Complutense de Madrid, Madrid, Spain
| | - Fernando Huete-Toral
- Department of Biochemistry and Molecular Biology IV, Group Ocupharm, Faculty of Optics and Optometry, Universidad Complutense de Madrid, Madrid, Spain
| | - Basilio Colligris
- Department of Biochemistry and Molecular Biology IV, Group Ocupharm, Faculty of Optics and Optometry, Universidad Complutense de Madrid, Madrid, Spain
| | - Jesús Pintor
- Department of Biochemistry and Molecular Biology IV, Group Ocupharm, Faculty of Optics and Optometry, Universidad Complutense de Madrid, Madrid, Spain
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33
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Ebadi P, Fazeli M. Anti-photoaging potential of propolis extract in UVB-irradiated human dermal fibroblasts through increasing the expression of FOXO3A and NGF genes. Biomed Pharmacother 2017; 95:47-54. [PMID: 28826096 DOI: 10.1016/j.biopha.2017.08.019] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Revised: 08/02/2017] [Accepted: 08/02/2017] [Indexed: 12/20/2022] Open
Abstract
Propolis is a resinous compound that has been widely used in folk medicine. Different biological activities and therapeutic applications of propolis have been studied before. However, the effects of propolis on longevity-associated genes expression in the prevention of skin photoaging still remained unclear. Therefore in this study the protective effects of propolis on the expressions of two longevity-associated genes, FOXO3A and NGF genes, against UVB-induced photoaging in human dermal fibroblasts (HDF) were investigated. Propolis extract demonstrated a concentration-dependent free radical scavenging activity that was determined by 2, 2-diphenyl-1-picrylhydrazyl (DPPH) assay. Also, Folin-Ciocalteu method was used to measure the total phenolic content of the extract. The viability of HDF cells was decreased gradually with increasing UVB radiation doses and 248mJ/cm2 was selected as the sub-cytotoxic dose. Pre-treatment with propolis extract increased the viability of UVB-irradiated human dermal fibroblasts and decreased the number of β-galactosidase positive cells as senescent cells among them. It also increased the expression of FOXO3A and NGF genes in irradiated and non-irradiated cells. Consequently, these findings suggest that propolis extract has anti-photoaging potential and this property, in addition to its strong antioxidant activity, may be due to its effects on upregulation of longevity-associated genes.
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Affiliation(s)
- Parimah Ebadi
- Division of Biotechnology, Department of Pathobiology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran.
| | - Mehdi Fazeli
- Division of Pharmacology and Toxicology, Department of Basic Sciences, School of Veterinary Medicine, Shiraz University, Shiraz, Iran.
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34
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Pan Y, Liu Z, Feng Z, Hui D, Huang X, Tong D, Jin Y. The overexpression of Rabl3 is associated with pathogenesis and clinicopathologic variables in hepatocellular carcinoma. Tumour Biol 2017; 39:1010428317696230. [PMID: 28443498 DOI: 10.1177/1010428317696230] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Overexpression of Rabl3 is associated with some malignancies. However, their relationship with hepatocellular carcinoma remains unclear. In this study, the expression of Rabl3 in hepatocellular carcinoma cell lines, and four pairs of matched hepatocellular carcinoma tissues and their adjacent normal hepatic tissues were detected by quantitative reverse transcription polymerase chain reaction and western blot. In addition, the protein expression of Rabl3 was examined in 162 cases of hepatocellular carcinoma by immunohistochemistry. Rabl3 in hepatocellular carcinoma cell lines was elevated at both messenger RNA and protein levels, and the Rabl3 protein was significantly upregulated by upto 3.3-fold in hepatocellular carcinoma compared with the paired normal hepatic tissues. Immunohistochemical analysis revealed that overexpressions of Rabl3 were 80.2% in hepatocellular carcinoma. Rabl3 is expressed at significantly higher rates in hepatocellular carcinoma compared with adjacent normal hepatic tissue (p < 0.01). Statistical analysis suggested the upregulation of Rabl3 was significantly associated with lymph node metastasis, tumor thrombus of the portal vein, and advanced clinical stage (p < 0.05). Furthermore, we found that overexpression of Rabl3 in hepatocellular carcinoma cells could significantly enhance cell proliferation and growth ability. Conversely, silencing Rabl3 by small hairpin RNA interference caused an inhibition of cell proliferation and growth. Our studies suggest that the Rabl3 is a valuable marker of hepatocellular carcinoma progression and that the overexpression of Rabl3 plays an important role in the development and pathogenesis of hepatocellular carcinoma.
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Affiliation(s)
- Yuhang Pan
- 1 Department of Pathology, Guangdong Provincial Key Laboratory of Liver Disease Research, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zhiyong Liu
- 2 Department of Emergency Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zhiying Feng
- 1 Department of Pathology, Guangdong Provincial Key Laboratory of Liver Disease Research, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Dayang Hui
- 1 Department of Pathology, Guangdong Provincial Key Laboratory of Liver Disease Research, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xiangqi Huang
- 1 Department of Pathology, Guangdong Provincial Key Laboratory of Liver Disease Research, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Dayue Tong
- 3 Department of Forensic Medicine, Zhongshan Medical School, Sun Yat-sen University, Guangzhou, China
| | - Yi Jin
- 1 Department of Pathology, Guangdong Provincial Key Laboratory of Liver Disease Research, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
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35
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Preconditioning with melatonin improves therapeutic outcomes of bone marrow-derived mesenchymal stem cells in targeting liver fibrosis induced by CCl4. Cell Tissue Res 2017; 369:303-312. [PMID: 28413861 DOI: 10.1007/s00441-017-2604-1] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Accepted: 03/03/2017] [Indexed: 01/14/2023]
Abstract
Preconditioning of mesenchymal stem cells (MSCs) with melatonin (MT) has shown promising results in animal models of myocardial infarction, renal ischemia and cerebral ischemia. Here, we use this strategy in the liver fibrosis induced by CCl4. There were five groups: normal, CCl4, CCl4 + vehicle, CCl4 + BMMSCs and CCl4 + MT-bone marrow (BM)-derived MSCs (MT-BMMSCs). CCl4 was injected twice weekly for 8 weeks and treatment either with cells or vehicle was performed at the beginning of week 5 with a single dose. BMMSCs were preconditioned with MT for 24 h before injection. MT-BMMSCs had a high ability of homing into the injured liver (P ≤ 0.05 vs. BMMSCs). The CCl4 + MT-BMMSCs group showed higher percentage of glycogen storage but lower percentage of collagen and lipid accumulation (P ≤ 0.05 vs. CCl4 + BMMSCs). The CCl4 + MT-BMMSCs group showed lower expressions of transforming growth factor-β1 (TGF-β1) and Bax and lower content of sera alanine aminotransferase (ALT) but higher expressions of matrix metalloproteinases (MMPs) and Bcl2 compared with the BMMSCs group (P ≤ 0.05). The results showed the better therapeutic outcomes of MT preconditioning by probably improving cell homing and also better maintenance of the balance between matrix degrading and accumulating factors.
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Najafi M, Shirazi A, Motevaseli E, Geraily G, Norouzi F, Heidari M, Rezapoor S. The melatonin immunomodulatory actions in radiotherapy. Biophys Rev 2017; 9:139-148. [PMID: 28510090 PMCID: PMC5425818 DOI: 10.1007/s12551-017-0256-8] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2017] [Accepted: 03/05/2017] [Indexed: 02/07/2023] Open
Abstract
Radiotherapy has a key role in cancer treatment in more than half of patients with cancer. The management of severe side effects of this treatment modality is a limiting factor to appropriate treatment. Immune system responses play a pivotal role in many of the early and late side effects of radiation. Moreover, immune cells have a significant role in tumor response to radiotherapy, such as angiogenesis and tumor growth. Melatonin as a potent antioxidant has shown appropriate immune regulatory properties that may ameliorate toxicity induced by radiation in various organs. These effects are mediated through various modulatory effects of melatonin in different levels of tissue reaction to ionizing radiation. The effects on the DNA repair system, antioxidant enzymes, immune cells, cytokines secretion, transcription factors, and protein kinases are most important. Moreover, anti-cancer properties of melatonin may increase the therapeutic ratio of radiotherapy. Clinical applications of this agent for the management of malignancies such as breast cancer have shown promising results. It seems anti-proliferative, anti-angiogenesis, and stimulation or suppression of some immune cell responses are the main anti-tumor effects of melatonin that may help to improve response of the tumor to radiotherapy. In this review, the effects of melatonin on the modulation of immune responses in both normal and tumor tissues will be discussed.
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Affiliation(s)
- M Najafi
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - A Shirazi
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
| | - E Motevaseli
- Department of Molecular Medicine, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran.
| | - Gh Geraily
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - F Norouzi
- Department of Medical Radiation Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - M Heidari
- Department of Radiology, Faculty of Paramedical, Tehran University of Medical Sciences, Tehran, Iran
| | - S Rezapoor
- Department of Radiology, Faculty of Paramedical, Tehran University of Medical Sciences, Tehran, Iran
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The acute exposure of tetrachloro-p-benzoquinone (a.k.a. chloranil) triggers inflammation and neurological dysfunction via Toll-like receptor 4 signaling: The protective role of melatonin preconditioning. Toxicology 2017; 381:39-50. [PMID: 28238930 DOI: 10.1016/j.tox.2017.02.015] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2016] [Revised: 02/22/2017] [Accepted: 02/22/2017] [Indexed: 02/06/2023]
Abstract
This study is aimed to investigate the inflammation and neurological dysfunction induced by tetrachloro-p-benzoquinone (TCBQ) through Toll-like receptor 4 (TLR4) signaling. We also investigated the protective role of melatonin as an antioxidant and anti-inflammatory agent. In vitro model was established by rat pheochromocytoma PC12 cells, meanwhile, TLR4 wild-type (C57BL/6) and knockout mice (C57BL/10ScNJ TLR4-/-) were used as in vivo model. In vitro study showed TCBQ exposure enhanced the expression of TLR4, myeloid differentiation factor 88 (MyD88) at both transcriptional and post-transcriptional levels. By contrast, melatonin decreased TLR4 and MyD88 expressions. Moreover, our result indicated that melatonin disrupted the formation of TLR4/MyD88/MD2/CD14 complex. In addition, melatonin terminated TCBQ-mediated phosphorylation of c-Jun N-terminal kinase (JNK), p38, and extracellular regulated protein kinase (ERK) signaling and hampered its downstream pro-inflammatory cytokine releases. In vivo result also indicated TLR4 deficiency partially protected against TCBQ-induced morphological and neuropathological changes in mice brain, suggested the role of TLR4. In conclusion, melatonin modulates TCBQ-mediated inflammatory genes through TLR4/MyD88-dependent signaling pathway. Our current study, to the best of our knowledge, is the first time show melatonin not only disrupt the binding of TLR4 and MyD88, but also restricted the formation of TLR4/MD2/CD14 complex, suggesting that melatonin supplementary may represent a valuable therapeutic strategy for inflammatory neurological dysfunction.
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Shukla M, Govitrapong P, Boontem P, Reiter RJ, Satayavivad J. Mechanisms of Melatonin in Alleviating Alzheimer's Disease. Curr Neuropharmacol 2017; 15:1010-1031. [PMID: 28294066 PMCID: PMC5652010 DOI: 10.2174/1570159x15666170313123454] [Citation(s) in RCA: 113] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Revised: 02/10/2017] [Accepted: 03/09/2017] [Indexed: 02/07/2023] Open
Abstract
Alzheimer's disease (AD) is a chronic, progressive and prevalent neurodegenerative disease characterized by the loss of higher cognitive functions and an associated loss of memory. The thus far "incurable" stigma for AD prevails because of variations in the success rates of different treatment protocols in animal and human studies. Among the classical hypotheses explaining AD pathogenesis, the amyloid hypothesis is currently being targeted for drug development. The underlying concept is to prevent the formation of these neurotoxic peptides which play a central role in AD pathology and trigger a multispectral cascade of neurodegenerative processes post-aggregation. This could possibly be achieved by pharmacological inhibition of β- or γ-secretase or stimulating the nonamyloidogenic α-secretase. Melatonin the pineal hormone is a multifunctioning indoleamine. Production of this amphiphilic molecule diminishes with advancing age and this decrease runs parallel with the progression of AD which itself explains the potential benefits of melatonin in line of development and devastating consequences of the disease progression. Our recent studies have revealed a novel mechanism by which melatonin stimulates the nonamyloidogenic processing and inhibits the amyloidogenic processing of β-amyloid precursor protein (βAPP) by stimulating α -secretases and consequently down regulating both β- and γ-secretases at the transcriptional level. In this review, we discuss and evaluate the neuroprotective functions of melatonin in AD pathogenesis, including its role in the classical hypotheses in cellular and animal models and clinical interventions in AD patients, and suggest that with early detection, melatonin treatment is qualified to be an anti-AD therapy.
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Affiliation(s)
- Mayuri Shukla
- Chulabhorn Graduate Institute, Chulabhorn Royal Academy, 54 Kamphaeng Phet 6 Road, Lak Si, Bangkok10210, Thailand
| | - Piyarat Govitrapong
- Chulabhorn Graduate Institute, Chulabhorn Royal Academy, 54 Kamphaeng Phet 6 Road, Lak Si, Bangkok10210, Thailand
- Research Center for Neuroscience, Institute of Molecular Biosciences, Mahidol University, Salaya, Nakornpathom 73170, Thailand
| | - Parichart Boontem
- Chulabhorn Graduate Institute, Chulabhorn Royal Academy, 54 Kamphaeng Phet 6 Road, Lak Si, Bangkok10210, Thailand
| | - Russel J. Reiter
- Department of Cellular and Structural Biology, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| | - Jutamaad Satayavivad
- Chulabhorn Research Institute and Chulabhorn Graduate Institute, Chulabhorn Royal Academy, Bangkok10210, Thailand
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Mayo JC, Hevia D, Quiros-Gonzalez I, Rodriguez-Garcia A, Gonzalez-Menendez P, Cepas V, Gonzalez-Pola I, Sainz RM. IGFBP3 and MAPK/ERK signaling mediates melatonin-induced antitumor activity in prostate cancer. J Pineal Res 2017; 62. [PMID: 27736013 DOI: 10.1111/jpi.12373] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Accepted: 10/10/2016] [Indexed: 12/28/2022]
Abstract
Treatment of prostate cancer (PCa), a leading cause of cancer among males, lacks successful strategies especially in advanced, hormone-refractory stages. Some clinical studies have shown an increase in neuroendocrine-like cells parallel to the tumor progression but their exact role is a matter of debate. The prostate is a well-known target for melatonin, which reduces PCa cells proliferation and induces neuroendocrine differentiation. To evaluate the mechanisms underlying the indole effects on neuroendocrine differentiation and its impact on PCa progression, we used a cell culture model (LNCaP) and a murine model (TRAMP). Persistent ERK1/2 activation was found in both, melatonin and androgen-deprived cells. Melatonin blocked nuclear translocation of androgen receptor (AR), thus confirming anti-androgenic actions of the indole. However, using a comparative genome microarray to check the differentially expressed genes in control, melatonin, or androgen-deprived cells, some differences were found, suggesting a more complex role of the indole. By comparing control cells with those treated with melatonin or depleted of androgen, a cluster of 26 differentially expressed genes (±2.5-fold) was found. Kallikreins (KLK)2 and KLK3 (PSA) were dramatically downregulated by both treatments whereas IGFBP3 and IGF1R were up- and downregulated, respectively, in both experimental groups, thus showing a role for IGF in both scenarios. Finally, melatonin prolonged the survival of TRAMP mice by 33% when given at the beginning or at advances stages of the tumor. Serum IGFBP3 was significantly elevated by the indole in early stages of the tumor, confirming in vivo the role of the IGF signaling in the oncostatic action of the indole.
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Affiliation(s)
- Juan C Mayo
- Departamento de Morfología y Biología Celular, University of Oviedo, Oviedo, Spain
- Redox Biology Unit, The University Institute of Oncology of Asturias (IUOPA), University of Oviedo, Oviedo, Spain
| | - David Hevia
- Departamento de Morfología y Biología Celular, University of Oviedo, Oviedo, Spain
| | | | - Aida Rodriguez-Garcia
- Department of Microbiology, Tumor and Cell Biology (MTC), C1, Marie Arsenian Henriksson group, Stockholm, Sweden
| | - Pedro Gonzalez-Menendez
- Departamento de Morfología y Biología Celular, University of Oviedo, Oviedo, Spain
- Redox Biology Unit, The University Institute of Oncology of Asturias (IUOPA), University of Oviedo, Oviedo, Spain
| | - Vanesa Cepas
- Departamento de Morfología y Biología Celular, University of Oviedo, Oviedo, Spain
- Redox Biology Unit, The University Institute of Oncology of Asturias (IUOPA), University of Oviedo, Oviedo, Spain
| | - Iván Gonzalez-Pola
- Departamento de Morfología y Biología Celular, University of Oviedo, Oviedo, Spain
- Redox Biology Unit, The University Institute of Oncology of Asturias (IUOPA), University of Oviedo, Oviedo, Spain
| | - Rosa M Sainz
- Departamento de Morfología y Biología Celular, University of Oviedo, Oviedo, Spain
- Redox Biology Unit, The University Institute of Oncology of Asturias (IUOPA), University of Oviedo, Oviedo, Spain
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Sotthibundhu A, Ekthuwapranee K, Govitrapong P. Comparison of melatonin with growth factors in promoting precursor cells proliferation in adult mouse subventricular zone. EXCLI JOURNAL 2016; 15:829-841. [PMID: 28275319 PMCID: PMC5341012 DOI: 10.17179/excli2016-606] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Accepted: 11/21/2016] [Indexed: 11/23/2022]
Abstract
Melatonin, secreted mainly by the pineal gland, plays roles in various physiological functions including protecting cell death. We showed in previous study that the proliferation and differentiation of precursor cells from the adult mouse subventricular zone (SVZ) can be modulated by melatonin via the MT1 melatonin receptor. Since melatonin and epidermal growth factor receptor (EGFR) share some signaling pathway components, we investigated whether melatonin can promote the proliferation of precursor cells from the adult mouse SVZ via the extracellular signal-regulated protein kinase /mitogen-activated protein kinase (ERK/MAPK) pathways in comparison with epidermal growth factor (EGF). Melatonin-induced ERK/MAPK pathways compared with EGF were measured by using in vitro and vivo models. We used neurosphere proliferation assay, immunocytochemistry, and immuno-blotting to analyze significant differences between melatonin and growth factor treatment. We also used specific antagonist and inhibitors to confirm the exactly signaling pathway including luzindole and U0126. We found that significant increase in proliferation was observed when two growth factors (EGF+bFGF) and melatonin were used simultaneously compared with EGF + bFGF or compared with melatonin alone. In addition, the present result suggested the synergistic effect occurred of melatonin and growth factors on the activating the ERK/MAPK pathway. This study exhibited that melatonin could act as a trophic factor, increasing proliferation in precursor cells mediated through the melatonin receptor coupled to ERK/MAPK signaling pathways. Understanding the mechanism by which melatonin regulates precursor cells may conduct to the development of novel strategies for neurodegenerative disease therapy.
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Affiliation(s)
- Areechun Sotthibundhu
- Center for Neuroscience, Faculty of Science, Mahidol University, Bangkok, Thailand; Chulabhorn International College of Medicine, Thammasat University, Patumthani, 12120, Thailand
| | - Kasima Ekthuwapranee
- Physical therapy, Srinakharinwirot University, Ongkharak, Nakhonnayok 26120, Thailand; Research Center for Neuroscience, Institute of Molecular Biosciences, Mahidol University, Salaya, Nakornpathom, Thailand
| | - Piyarat Govitrapong
- Center for Neuroscience, Faculty of Science, Mahidol University, Bangkok, Thailand; Research Center for Neuroscience, Institute of Molecular Biosciences, Mahidol University, Salaya, Nakornpathom, Thailand; Chulabhorn Graduate Institute, Kamphaeng Phet 6 Road, Lak Si, Bangkok 10210, Thailand
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Scheuer C, Pommergaard HC, Rosenberg J, Gögenur I. Dose dependent sun protective effect of topical melatonin: A randomized, placebo-controlled, double-blind study. J Dermatol Sci 2016; 84:178-185. [DOI: 10.1016/j.jdermsci.2016.08.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Revised: 04/12/2016] [Accepted: 08/09/2016] [Indexed: 11/16/2022]
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Canonico B, Cesarini E, Salucci S, Luchetti F, Falcieri E, Di Sario G, Palma F, Papa S. Defective Autophagy, Mitochondrial Clearance and Lipophagy in Niemann-Pick Type B Lymphocytes. PLoS One 2016; 11:e0165780. [PMID: 27798705 PMCID: PMC5087958 DOI: 10.1371/journal.pone.0165780] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Accepted: 10/18/2016] [Indexed: 12/21/2022] Open
Abstract
Niemann-Pick disease type A (NP-A) and type B (NP-B) are lysosomal storage diseases (LSDs) caused by sphingomyelin accumulation in lysosomes relying on reduced or absent acid sphingomyelinase. A considerable body of evidence suggests that lysosomal storage in many LSD impairs autophagy, resulting in the accumulation of poly-ubiquitinated proteins and dysfunctional mitochondria, ultimately leading to cell death. Here we test this hypothesis in a cellular model of Niemann-Pick disease type B, in which autophagy has never been studied. The basal autophagic pathway was first examined in order to evaluate its functionality using several autophagy-modulating substances such as rapamycin and nocodazole. We found that human NP-B B lymphocytes display considerable alteration in their autophagic vacuole accumulation and mitochondrial fragmentation, as well as mitophagy induction (for damaged mitochondria clearance). Furthermore, lipid traceability of intra and extra-cellular environments shows lipid accumulation in NP-B B lymphocytes and also reveals their peculiar trafficking/management, culminating in lipid microparticle extrusion (by lysosomal exocytosis mechanisms) or lipophagy. All of these features point to the presence of a deep autophagy/mitophagy alteration revealing autophagic stress and defective mitochondrial clearance. Hence, rapamycin might be used to regulate autophagy/mitophagy (at least in part) and to contribute to the clearance of lysosomal aberrant lipid storage.
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Affiliation(s)
- Barbara Canonico
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy
- * E-mail:
| | - Erica Cesarini
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy
| | - Sara Salucci
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy
| | - Francesca Luchetti
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy
| | - Elisabetta Falcieri
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy
- IGM, CNR, Rizzoli Orthopaedic Institute, Bologna, Italy; Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy
| | - Gianna Di Sario
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy
| | - Fulvio Palma
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy
| | - Stefano Papa
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Urbino, Italy
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Pang YW, Sun YQ, Jiang XL, Huang ZQ, Zhao SJ, Du WH, Hao HS, Zhao XM, Zhu HB. Protective effects of melatonin on bovine sperm characteristics and subsequent in vitro embryo development. Mol Reprod Dev 2016; 83:993-1002. [DOI: 10.1002/mrd.22742] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Accepted: 09/12/2016] [Indexed: 01/09/2023]
Affiliation(s)
- Yun-Wei Pang
- Embryo Biotechnology and Reproduction Laboratory; Institute of Animal Science; Chinese Academy of Agricultural Sciences; Beijing P.R. China
| | - Ye-Qing Sun
- Embryo Biotechnology and Reproduction Laboratory; Institute of Animal Science; Chinese Academy of Agricultural Sciences; Beijing P.R. China
| | - Xiao-Long Jiang
- Embryo Biotechnology and Reproduction Laboratory; Institute of Animal Science; Chinese Academy of Agricultural Sciences; Beijing P.R. China
| | - Zi-Qiang Huang
- Embryo Biotechnology and Reproduction Laboratory; Institute of Animal Science; Chinese Academy of Agricultural Sciences; Beijing P.R. China
| | - Shan-Jiang Zhao
- Embryo Biotechnology and Reproduction Laboratory; Institute of Animal Science; Chinese Academy of Agricultural Sciences; Beijing P.R. China
| | - Wei-Hua Du
- Embryo Biotechnology and Reproduction Laboratory; Institute of Animal Science; Chinese Academy of Agricultural Sciences; Beijing P.R. China
| | - Hai-Sheng Hao
- Embryo Biotechnology and Reproduction Laboratory; Institute of Animal Science; Chinese Academy of Agricultural Sciences; Beijing P.R. China
| | - Xue-Ming Zhao
- Embryo Biotechnology and Reproduction Laboratory; Institute of Animal Science; Chinese Academy of Agricultural Sciences; Beijing P.R. China
| | - Hua-Bin Zhu
- Embryo Biotechnology and Reproduction Laboratory; Institute of Animal Science; Chinese Academy of Agricultural Sciences; Beijing P.R. China
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Othman AI, Edrees GM, El-Missiry MA, Ali DA, Aboel-Nour M, Dabdoub BR. Melatonin controlled apoptosis and protected the testes and sperm quality against bisphenol A-induced oxidative toxicity. Toxicol Ind Health 2016; 32:1537-49. [DOI: 10.1177/0748233714561286] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Epidemiological reports have indicated a correlation between the increasing bisphenol A (BPA) levels in the environment and the incidence of male infertility. In this study, the protective effects of melatonin on BPA-induced oxidative stress and apoptosis were investigated in the rat testes and epididymal sperm. Melatonin (10 mg/kg body weight (bw)) was injected concurrently with BPA (50 mg/kg bw) for 3 and 6 weeks. The administration of BPA significantly increased oxidative stress in the testes and epididymal sperm. This was associated with a decrease in the serum testosterone level as well as sperm quality, chromatin condensation/de-condensation level, and the percentage of haploid germ cells in the semen. BPA administration caused a significant increase in apoptosis accompanied by a decrease in the expression of the antiapoptotic proteins Bcl-2 in the testes and epididymal sperm. The concurrent administration of melatonin decreased oxidative stress by modulating the levels of glutathione, superoxide dismutase, and catalase as well as the malondialdehyde and hydrogen peroxide concentrations in the testes and sperm. Melatonin sustained Bcl-2 expression and controlled apoptosis. Furthermore, melatonin maintained the testosterone levels, ameliorated histopathological changes, increased the percentages of seminal haploid germ cells, and protected sperm chromatin condensation process, indicating appropriate spermatogenesis with production of functional sperm. In conclusion, melatonin protected against BPA-induced apoptosis by controlling Bcl-2 expression and ameliorating oxidative stress in the testes and sperm. Thus, melatonin is a promising pharmacological agent for preventing the potential reproductive toxicity of BPA following occupational or environmental exposures.
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Affiliation(s)
- Azza I Othman
- Department of Zoology, Faculty of Science, Mansoura University, Mansoura, Egypt
| | - Gamal M Edrees
- Department of Zoology, Faculty of Science, Mansoura University, Mansoura, Egypt
| | | | - Doaa A Ali
- Department of Zoology, Faculty of Science, Mansoura University, Mansoura, Egypt
| | - Mohamed Aboel-Nour
- Department of Zoology, Faculty of Science, Mansoura University, Mansoura, Egypt
| | - Banan R Dabdoub
- Department of Biology, Faculty of Education, Mosul University, Mosul, Iraq
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Shi Y, Quan R, Li C, Zhang L, Du M, Xu J, Yang Z, Yang D. The study of traditional Chinese medical elongated-needle therapy promoting neurological recovery mechanism after spinal cord injury in rats. JOURNAL OF ETHNOPHARMACOLOGY 2016; 187:28-41. [PMID: 27085942 DOI: 10.1016/j.jep.2016.04.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Revised: 03/31/2016] [Accepted: 04/12/2016] [Indexed: 06/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Acupuncture is a key part of traditional Chinese medicine, shown to induce favorable neuroplasticity for injuries in the central and peripheral nervous systems. Recent studies report elongated needle therapy (ENT) with BL54 and ST28 may restore acute spinal cord injury (ASCI). However, the precise mechanism for this has not been elucidated. AIM OF THE STUDY In our current study, we investigated the effects of ENT on inflammation and neuronal apoptosis induced by ASCI, and whether PI3K/Akt and MAPK/ERK signaling pathways are involved in the ENT restoration effect. MATERIALS AND METHODS Rat models of moderate SCI were established in accordance with the modified Allen's method and were treated with ENT continuously for 7 days. Spontaneous activities were evaluated by the Basso Beattie and Bresnahan locomotor scale. Levels of inflammatory cytokines, such as tumor necrosis factor alpha, interleukin-6, IL-1β, and nuclear factor kappa-β, were determined by enzyme-linked immunosorbent assay. Cell apoptosis was examined by the terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assay. The proportions of cells with positive Bcl-2 and Bax expression were determined by immunohistochemical assays, whilst the expression profiles of p-AKT and p-ERK in spinal cord tissues were evaluated by western blotting. Furthermore, the expression profiles of Cytochrome-C (Cyt-C) and caspase-3 in vivo were analyzed by reverse transcription polymerase chain reaction. The potential inhibitory effects downstream of the Akt and ERK signaling pathways were examined by administration of specific inhibitors LY294002 and PD98059 in vivo. RESULTS As indicated by this study, inflammation as well as PI3K/Akt- and MAPK/ERK signaling pathway-mediated neuronal apoptosis were involved in the course of SCI in rats. The neuro-protective effect of ENT was associated with reduced Bax protein-positive neurons and increased Bcl-2 protein-positive neurons. ENT enhanced recovery of rat activities. Activation of p-Akt and p-ERK in the PI3K/Akt and MAPK/ERK signaling pathways, inhibited expression of the critical component Cyt-C. Cyt-C is required for the mitochondrial apoptosis pathway and cascade of caspase-3, which is involved in activation of neuronal apoptosis through down-regulation of Bax protein and up-regulation of Bcl-2, as determined by TUNEL. The administration of PI3K/Akt and MAPK/ERK signaling pathway specific inhibitors, LY294002 and PD98059, suppressed expression of both p-Akt and p-ERK. CONCLUSION ENT with BL54 and ST28 points can promote the recovery of ASCI. And the neuro-protective effect of ENT during the restoration of SCI may be associated with the suppression of both inflammation and activation of PI3K/Akt and MAPK/ERK signaling pathways, resulting from down-regulation of Bax protein, up-regulation of Bcl-2, and inhibition of the mitochondrial apoptosis pathway.
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Affiliation(s)
- Yihui Shi
- Research Institute of Acupuncture and Moxibustion, Zhejiang Chinese Medical University, Hangzhou 31012, China
| | - Renfu Quan
- Research Institute of Acupuncture and Moxibustion, The Affiliated Jiangnan Hospital of Zhejiang Chinese Medical University, Hangzhou 31012, China.
| | - Changming Li
- Research Institute of Acupuncture and Moxibustion, The Affiliated Jiangnan Hospital of Zhejiang Chinese Medical University, Hangzhou 31012, China
| | - Liang Zhang
- Research Institute of Acupuncture and Moxibustion, Zhejiang Chinese Medical University, Hangzhou 31012, China
| | - Mengxuan Du
- Research Institute of Acupuncture and Moxibustion, The Affiliated Jiangnan Hospital of Zhejiang Chinese Medical University, Hangzhou 31012, China
| | - Jinwei Xu
- Research Institute of Acupuncture and Moxibustion, The Affiliated Jiangnan Hospital of Zhejiang Chinese Medical University, Hangzhou 31012, China
| | - Zongbao Yang
- Research Institute of Acupuncture and Moxibustion, Medical College of Xiamen University, Xiamen, Fujian, China
| | - Disheng Yang
- The Second Affiliated Hospital, Medical College of Zhejiang University, Hangzhou, Zhejiang, China
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Bartolini D, Galli F. The functional interactome of GSTP: A regulatory biomolecular network at the interface with the Nrf2 adaption response to oxidative stress. J Chromatogr B Analyt Technol Biomed Life Sci 2016; 1019:29-44. [DOI: 10.1016/j.jchromb.2016.02.002] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2015] [Revised: 02/01/2016] [Accepted: 02/02/2016] [Indexed: 01/01/2023]
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Satué M, Ramis JM, del Mar Arriero M, Monjo M. A new role for 5-methoxytryptophol on bone cells function in vitro. J Cell Biochem 2016; 116:551-8. [PMID: 25358700 DOI: 10.1002/jcb.25005] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Accepted: 10/24/2014] [Indexed: 01/07/2023]
Abstract
The present study investigates the direct action of 5-methoxytryptophol (5-MTX) in both MC3T3-E1 and RAW264.7 cells and compares it with melatonin (MEL), another 5-methoxyindol known to play a significant role on bone metabolism. We first screened increasing doses of both 5-MTX and MEL to determine their effect on metabolic activity and viability of preosteoblastic MC3T3-E1 cells. The optimal dose was used to determine its effect on differentiation of MC3T3-E1 cells and preosteoclastic RAW264.7 cells. Finally, we investigated the mechanism of action by adding the melatonin receptor antagonist luzindole (LUZ) and detecting the immunostaining of phospho-ERK. In MC3T3-E1 cells, most of the 5-MTX doses reduced slightly the metabolic activity of osteoblasts compared with the control, while MEL only decreased it for the highest dose (2.5 mM). As regards to cytotoxicity, low doses (0.001-0.1 mM) of both indoles showed a protective effect on osteoblasts, while the highest dose of MEL showed a higher cytotoxicity than the 5-MTX one. After 14 days of cell culture, Rankl mRNA levels were decreased, especially for 5-MTX. 5-MTX also induced a higher osteocalcin secretion and mineralization capacity than MEL. In RAW264.7 cells, 5-MTX decreased the number of osteoclast formed and its activity whereas MEL did not affect significantly the number of multinucleated TRAP-positive cells formed and showed a lower activity. Finally, MEL and 5-MTX promoted activation of the ERK1/2 pathway through the phosphorylation of ERK, while LUZ addition suppressed this effect. In conclusion, the present study demonstrates a new role of 5-MTX inhibiting osteoclastogenesis and promoting osteoblast differentiation.
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Affiliation(s)
- María Satué
- Group of Cell Therapy and Tissue Engineering, Research Institute on Health Sciences (IUNICS). University of Balearic Islands, Palma de Mallorca, Spain
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Pang YW, Sun YQ, Sun WJ, Du WH, Hao HS, Zhao SJ, Zhu HB. Melatonin inhibits paraquat-induced cell death in bovine preimplantation embryos. J Pineal Res 2016; 60:155-66. [PMID: 26607207 DOI: 10.1111/jpi.12297] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Accepted: 11/19/2015] [Indexed: 12/20/2022]
Abstract
Preimplantation embryos are sensitive to oxidative stress-induced damage that can be caused by reactive oxygen species (ROS) originating from normal embryonic metabolism and/or the external surroundings. Paraquat (PQ), a commonly used pesticide and potent ROS generator, can induce embryotoxicity. The present study aimed to investigate the effects of melatonin on PQ-induced damage during embryonic development in bovine preimplantation embryos. PQ treatment significantly reduced the ability of bovine embryos to develop to the blastocyst stage, and the addition of melatonin markedly reversed the developmental failure caused by PQ (20.9% versus 14.3%). Apoptotic assay showed that melatonin pretreatment did not change the total cell number in blastocysts, but the incidence of apoptotic nuclei and the release of cytochrome c were significantly decreased. Using real-time quantitative polymerase chain reaction analysis, we found that melatonin pre-incubation significantly altered the expression levels of genes associated with redox signaling, particularly by attenuating the transcript level of Txnip and reinforcing the expression of Trx. Furthermore, melatonin pretreatment significantly reduced the expression of the pro-apoptotic caspase-3 and Bax, while the expression of the anti-apoptotic Bcl-2 and XIAP was unaffected. Western blot analysis showed that melatonin protected bovine embryos from PQ-induced damage in a p38-dependent manner, but extracellular signal-regulated kinase (ERK) and c-JUN N-terminal kinase (JNK) did not appear to be involved. Together, these results identify an underlying mechanism by which melatonin enhances the developmental potential of bovine preimplantation embryos under oxidative stress conditions.
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Affiliation(s)
- Yun-Wei Pang
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Ye-Qing Sun
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Wei-Jun Sun
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Wei-Hua Du
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Hai-Sheng Hao
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Shan-Jiang Zhao
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Hua-Bin Zhu
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
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Bartolini D, Commodi J, Piroddi M, Incipini L, Sancineto L, Santi C, Galli F. Glutathione S-transferase pi expression regulates the Nrf2-dependent response to hormetic diselenides. Free Radic Biol Med 2015; 88:466-480. [PMID: 26151571 DOI: 10.1016/j.freeradbiomed.2015.06.039] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2015] [Revised: 06/23/2015] [Accepted: 06/26/2015] [Indexed: 12/22/2022]
Abstract
Glutathione S-transferase pi (GSTP), a phase II gene downstream of the nuclear factor erythroid 2-related factor 2 (Nrf2)-antioxidant-responsive element (ARE)/electrophile response element (EpRE) transcription pathway, plays a key role in both the signaling and detoxification response to Se-organic compounds with thiol peroxidase activity. We here investigated the role of GSTP on the Nrf2 activation response of cells challenged with a new class of diselenides derived from the basic structure of diphenyl diselenide [(PhSe)2]. These diselenides, and particularly 2,2'-diselenyl dibenzoic acid (DSBA), behave as mild thiol peroxidases leading to a moderate generation of H2O2 and NOx, and signaling of stress-activated and survival-promoting MAPKs, which ultimately control the mitochondrial pathway of apoptosis. Used in murine embryonic fibroblasts (MEFs) and HepG2 human hepatocarcinoma cells to produce submaximal conditions of stress, the diselenide compounds stimulated Nrf2 nuclear translocation and then the transcription of the same Nrf2 gene as well as of GSTP and other phase II genes. This resulted in a higher degree of protection against H2O2 cytotoxicity (hormetic effect). Diselenide toxicity increased in GSTP knockout MEFs by a higher generation of NOx and stress activated protein kinase (SAPK)/JNK activation. A lowered hormetic potential of these cells was observed in association with an abnormal expression and nuclear translocation of Nrf2 protein. Immunoprecipitation and affinity purification experiments revealed the existence of an Nrf2/GSTP complex in MEFs and HepG2 cells. Covalent oligomers of GSTP subunits were observed in DSBA-treated HepG2 cells. In conclusion, GSTP gene expression influences the Nrf2-dependent response to hormetic diselenides. Mechanistic interpretation for this GSTP-dependent effect may include a direct and redox-sensitive interaction of GSTP with Nrf2 protein.
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Affiliation(s)
- D Bartolini
- Department of Pharmaceutical Sciences, University of Perugia, 06126 Perugia, Italy
| | - J Commodi
- Department of Pharmaceutical Sciences, University of Perugia, 06126 Perugia, Italy
| | - M Piroddi
- Department of Pharmaceutical Sciences, University of Perugia, 06126 Perugia, Italy
| | - L Incipini
- Department of Pharmaceutical Sciences, University of Perugia, 06126 Perugia, Italy
| | - L Sancineto
- Department of Pharmaceutical Sciences, University of Perugia, 06126 Perugia, Italy
| | - C Santi
- Department of Pharmaceutical Sciences, University of Perugia, 06126 Perugia, Italy
| | - F Galli
- Department of Pharmaceutical Sciences, University of Perugia, 06126 Perugia, Italy.
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Molecular aspects of melatonin (MLT)-mediated therapeutic effects. Life Sci 2015; 135:147-57. [DOI: 10.1016/j.lfs.2015.06.004] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2015] [Revised: 06/15/2015] [Accepted: 06/23/2015] [Indexed: 01/08/2023]
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