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Wongchitrat P, Chanmee T, Govitrapong P. Molecular Mechanisms Associated with Neurodegeneration of Neurotropic Viral Infection. Mol Neurobiol 2024; 61:2881-2903. [PMID: 37946006 PMCID: PMC11043213 DOI: 10.1007/s12035-023-03761-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 10/31/2023] [Indexed: 11/12/2023]
Abstract
Viral infections of the central nervous system (CNS) cause variable outcomes from acute to severe neurological sequelae with increased morbidity and mortality. Viral neuroinvasion directly or indirectly induces encephalitis via dysregulation of the immune response and contributes to the alteration of neuronal function and the degeneration of neuronal cells. This review provides an overview of the cellular and molecular mechanisms of virus-induced neurodegeneration. Neurotropic viral infections influence many aspects of neuronal dysfunction, including promoting chronic inflammation, inducing cellular oxidative stress, impairing mitophagy, encountering mitochondrial dynamics, enhancing metabolic rewiring, altering neurotransmitter systems, and inducing misfolded and aggregated pathological proteins associated with neurodegenerative diseases. These pathogenetic mechanisms create a multidimensional injury of the brain that leads to specific neuronal and brain dysfunction. The understanding of the molecular mechanisms underlying the neurophathogenesis associated with neurodegeneration of viral infection may emphasize the strategies for prevention, protection, and treatment of virus infection of the CNS.
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Affiliation(s)
- Prapimpun Wongchitrat
- Center for Research Innovation and Biomedical Informatics, Faculty of Medical Technology, Mahidol University, 999 Phutthamonthon 4 Road, Salaya, Phutthamonthon, Nakhon Pathom, 73170, Thailand.
| | - Theerawut Chanmee
- Department of Clinical Chemistry, Faculty of Medical Technology, Mahidol University, Salaya, Nakhon Pathom, Thailand
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Lapmanee S, Bhubhanil S, Wongchitrat P, Charoenphon N, Inchan A, Ngernsutivorakul T, Dechbumroong P, Khongkow M, Namdee K. Assessing the Safety and Therapeutic Efficacy of Cannabidiol Lipid Nanoparticles in Alleviating Metabolic and Memory Impairments and Hippocampal Histopathological Changes in Diabetic Parkinson's Rats. Pharmaceutics 2024; 16:514. [PMID: 38675175 PMCID: PMC11054774 DOI: 10.3390/pharmaceutics16040514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 03/21/2024] [Accepted: 04/05/2024] [Indexed: 04/28/2024] Open
Abstract
Diabetic Parkinson's disease (DP) is a progressive neurodegenerative disease with metabolic syndrome that is increasing worldwide. Emerging research suggests that cannabidiol (CBD) is a neuropharmacological compound that acts against this disease, especially CBD in nano-formulation. The safety of cannabidiol lipid nanoparticles (CBD-LNP) was evaluated by assessing in vitro cytotoxicity in neurons and therapeutic outcomes in a DP animal model, including metabolic parameters and histopathology. CBD-LNPs were fabricated by using a microfluidization technique and showed significantly lower cytotoxicity than the natural form of CBD. The DP rats were induced by streptozotocin followed by a 4-week injection of MPTP with a high-fat diet. Rats were treated orally with a vehicle, CBD, CBD-LNP, or levodopa for 4 weeks daily. As a result, vehicle-treated rats exhibited metabolic abnormalities, decreased striatal dopamine levels, and motor and memory deficits. CBD-LNP demonstrated reduced lipid profiles, enhanced insulin secretion, and restored dopamine levels compared to CBD in the natural form. CBD-LNP also had comparable efficacy to levodopa in ameliorating motor deficits and memory impairment in behavior tests. Interestingly, CBD-LNP presented migration of damaged neuronal cells in the hippocampus more than levodopa. These findings suggest that CBD-LNP holds promise as an intervention addressing both metabolic and neurodegenerative aspects of DP, offering a potential therapeutic strategy.
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Affiliation(s)
- Sarawut Lapmanee
- Department of Basic Medical Sciences, Faculty of Medicine, Siam University, Bangkok 10160, Thailand; (S.L.); (S.B.)
| | - Sakkarin Bhubhanil
- Department of Basic Medical Sciences, Faculty of Medicine, Siam University, Bangkok 10160, Thailand; (S.L.); (S.B.)
| | - Prapimpun Wongchitrat
- Center for Research Innovation and Biomedical Informatics, Faculty of Medical Technology, Mahidol University, Nakon Pathom 73170, Thailand;
| | - Natthawut Charoenphon
- Department of Anatomy, Faculty of Medical Science, Naresuan University, Phitsanulok 65000, Thailand;
| | - Anjaree Inchan
- Department of Physiology, Faculty of Medical Science, Naresuan University, Phitsanulok 65000, Thailand;
| | | | - Piroonrat Dechbumroong
- National Nanotechnology Centre (NANOTEC), National Science and Technology Development Agency, Pathumthani 12120, Thailand; (P.D.); (M.K.)
| | - Mattaka Khongkow
- National Nanotechnology Centre (NANOTEC), National Science and Technology Development Agency, Pathumthani 12120, Thailand; (P.D.); (M.K.)
| | - Katawut Namdee
- National Nanotechnology Centre (NANOTEC), National Science and Technology Development Agency, Pathumthani 12120, Thailand; (P.D.); (M.K.)
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Lapmanee S, Supkamonseni N, Bhubhanil S, Treesaksrisakul N, Sirithanakorn C, Khongkow M, Namdee K, Surinlert P, Tipbunjong C, Wongchitrat P. Stress-induced changes in cognitive function and intestinal barrier integrity can be ameliorated by venlafaxine and synbiotic supplementations. PeerJ 2024; 12:e17033. [PMID: 38435986 PMCID: PMC10908264 DOI: 10.7717/peerj.17033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Accepted: 02/08/2024] [Indexed: 03/05/2024] Open
Abstract
Stress profoundly impacts various aspects of both physical and psychological well-being. Our previous study demonstrated that venlafaxine (Vlx) and synbiotic (Syn) treatment attenuated learned fear-like behavior and recognition memory impairment in immobilized-stressed rats. In this study, we further investigated the physical, behavior, and cellular mechanisms underlying the effects of Syn and/or Vlx treatment on brain and intestinal functions in stressed rats. Adult male Wistar rats, aged 8 weeks old were subjected to 14 days of immobilization stress showed a decrease in body weight gain and food intake as well as an increase in water consumption, urinary corticosterone levels, and adrenal gland weight. Supplementation of Syn and/or Vlx in stressed rats resulted in mitigation of weight loss, restoration of normal food and fluid intake, and normalization of corticosterone levels. Behavioral analysis showed that treatment with Syn and/or Vlx enhanced depressive-like behaviors and improved spatial learning-memory impairment in stressed rats. Hippocampal dentate gyrus showed stress-induced neuronal cell death, which was attenuated by Syn and/or Vlx treatment. Stress-induced ileum inflammation and increased intestinal permeability were both effectively reduced by the supplementation of Syn. In addition, Syn and Vlx partly contributed to affecting the expression of the glial cell-derived neurotrophic factor in the hippocampus and intestines of stressed rats, suggesting particularly protective effects on both the gut barrier and the brain. This study highlights the intricate interplay between stress physiological responses in the brain and gut. Syn intervention alleviate stress-induced neuronal cell death and modulate depression- and memory impairment-like behaviors, and improve stress-induced gut barrier dysfunction which were similar to those of Vlx. These findings enhance our understanding of stress-related health conditions and suggest the synbiotic intervention may be a promising approach to ameliorate deleterious effects of stress on the gut-brain axis.
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Affiliation(s)
- Sarawut Lapmanee
- Department of Basic Medical Sciences, Faculty of Medicine, Siam University, Bangkok, Thailand
| | - Nattapon Supkamonseni
- Department of Basic Medical Sciences, Faculty of Medicine, Siam University, Bangkok, Thailand
| | - Sakkarin Bhubhanil
- Department of Basic Medical Sciences, Faculty of Medicine, Siam University, Bangkok, Thailand
| | | | - Chaiyos Sirithanakorn
- Faculty of Medicine, King Mongkut’s Institute of Technology Ladkrabang, Bangkok, Thailand
| | - Mattaka Khongkow
- National Nanotechnology Centre, National Science and Technology Development Agency, Pathumthani, Thailand
| | - Katawut Namdee
- National Nanotechnology Centre, National Science and Technology Development Agency, Pathumthani, Thailand
| | - Piyaporn Surinlert
- Chulabhorn International College of Medicine, Thammasat University, Pathumthani, Thailand
- Thammasat University Research Unit in Synthesis and Applications of Graphene, Thammasat University, Pathumthani, Thailand
| | - Chittipong Tipbunjong
- Division of Health and Applied Sciences, Faculty of Science, Prince of Songkla University, Songkhla, Thailand
| | - Prapimpun Wongchitrat
- Center for Research Innovation and Biomedical Informatics, Faculty of Medical Technology, Mahidol University, Nakhon Pathom, Thailand
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Yasawong M, Wongchitrat P, Isarankura-Na-Ayudhya C, Isarankura-Na-Ayudhya P, Na Nakorn P. Draft genome sequence data of heavy metal-resistant Morganella morganii WA01/MUTU, a silver nanoparticle (AgNP) synthesising bacterium. Data Brief 2024; 52:109873. [PMID: 38146295 PMCID: PMC10749224 DOI: 10.1016/j.dib.2023.109873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 11/15/2023] [Accepted: 11/23/2023] [Indexed: 12/27/2023] Open
Abstract
Morganella morganii WA01/MUTU is a heavy metal tolerant strain capable of producing silver nanoparticles (AgNPs) from AgNO3. Here we present the draft genome sequence of M. morganii WA01/MUTU isolated from a water sample collected in Nakhon Pathom province, Thailand. The draft genome was sequenced on the Illumina NextSeq 550 sequencer. The genome consisted of 34 contigs with a total size of 3,991,804 bp, an N50 value of 364,423 bp and a GC content of 50.93%. The digital DNA-DNA hybridisation (dDDH) between WA01/MUTU and Morganella morganii (NBRC 3848) was 83.9%, identifying the strain as Morganella morganii. The data presented here can be used in comparative genomics to identify gene clusters involved in AgNP biosynthesis and secondary metabolite production. The draft genome sequence data was deposited at NCBI under Bioproject accession number PRJNA493966.
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Affiliation(s)
- Montri Yasawong
- Program on Environmental Toxicology, Chulabhorn Graduate Institute, Chulabhorn Royal Academy, Bangkok 10210, Thailand
- Center of Excellence on Environmental Health and Toxicology (EHT), OPS, MHESI, Bangkok 10400, Thailand
| | - Prapimpun Wongchitrat
- Center for Research Innovation and Biomedical Informatics, Faculty of Medical Technology, Mahidol University, Nakhon Pathom 73170, Thailand
| | - Chartchalerm Isarankura-Na-Ayudhya
- Department of Clinical Microbiology and Applied Technology, Faculty of Medical Technology, Mahidol University, Nakhon Pathom 73170, Thailand
| | | | - Piyada Na Nakorn
- Center for Research Innovation and Biomedical Informatics, Faculty of Medical Technology, Mahidol University, Nakhon Pathom 73170, Thailand
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Lapmanee S, Bhubhanil S, Sriwong S, Yuajit C, Wongchitrat P, Teerapornpuntakit J, Suntornsaratoon P, Charoenphandhu J, Charoenphandhu N. Oral calcium and vitamin D supplements differentially alter exploratory, anxiety-like behaviors and memory in male rats. PLoS One 2023; 18:e0290106. [PMID: 37566598 PMCID: PMC10420380 DOI: 10.1371/journal.pone.0290106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 08/01/2023] [Indexed: 08/13/2023] Open
Abstract
Oral calcium and calcium plus vitamin D supplements are commonly prescribed to several groups of patients, e.g., osteoporosis, fracture, and calcium deficiency. Adequate and steady extracellular calcium levels are essential for neuronal activity, whereas certain forms of calcium supplement (e.g., CaCO3) probably interfere with memory function. However, it was unclear whether a long-term use of ionized calcium (calcium chloride in drinking water ad libitum), vitamin D supplement (oral gavage) or the combination of both affected anxiety and memory, the latter of which was probably dependent on the hippocampal neurogenesis. Here, we aimed to determine the effects of calcium and/or vitamin D supplement on the anxiety- and memory-related behaviors and the expression of doublecortin (DCX), an indirect proxy indicator of hippocampal neurogenesis. Eight-week-old male Wistar rats were divided into 4 groups, i.e., control, calcium chloride-, 400 UI/kg vitamin D3-, and calcium chloride plus vitamin D-treated groups. After 4 weeks of treatment, anxiety-, exploration- and recognition memory-related behaviors were evaluated by elevated pulse-maze (EPM), open field test (OFT), and novel object recognition (NOR), respectively. The hippocampi were investigated for the expression of DCX protein by Western blot analysis. We found that oral calcium supplement increased exploratory behavior as evaluated by OFT and the recognition index in NOR test without any effect on anxiety behavior in EPM. On the other hand, vitamin D supplement was found to reduce anxiety-like behaviors. Significant upregulation of DCX protein expression was observed in the hippocampus of both calcium- and vitamin D-treated rats, suggesting their positive effects on neurogenesis. In conclusion, oral calcium and vitamin D supplements positively affected exploratory, anxiety-like behaviors and/or memory in male rats. Thus, they potentially benefit on mood and memory in osteoporotic patients beyond bone metabolism.
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Affiliation(s)
- Sarawut Lapmanee
- Department of Basic Medical Sciences, Faculty of Medicine, Siam University, Bangkok, Thailand
| | - Sakkarin Bhubhanil
- Department of Basic Medical Sciences, Faculty of Medicine, Siam University, Bangkok, Thailand
| | - Siriwan Sriwong
- Laboratory Animal Center, Thammasat University, Pathum Thani, Thailand
| | - Chaowalit Yuajit
- College of Medicine and Public Health, Ubon Ratchathani University, Ubon Ratchathani, Thailand
| | - Prapimpun Wongchitrat
- Faculty of Medical Technology, Center for Research and Innovation, Mahidol University, Nakon Pathom, Thailand
| | - Jarinthorn Teerapornpuntakit
- Faculty of Medical Science, Department of Physiology, Naresuan University, Phitsanulok, Thailand
- Center of Calcium and Bone Research (COCAB), Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Panan Suntornsaratoon
- Center of Calcium and Bone Research (COCAB), Faculty of Science, Mahidol University, Bangkok, Thailand
- Department of Physiology, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Jantarima Charoenphandhu
- Physiology Division, Preclinical Sciences, Faculty of Medicine, Thammasat University, Pathum Thani, Thailand
| | - Narattaphol Charoenphandhu
- Center of Calcium and Bone Research (COCAB), Faculty of Science, Mahidol University, Bangkok, Thailand
- Department of Physiology, Faculty of Science, Mahidol University, Bangkok, Thailand
- Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand
- The Academy of Science, The Royal Society of Thailand, Bangkok, Thailand
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Kitidee K, Samutpong A, Pakpian N, Wisitponchai T, Govitrapong P, Reiter RJ, Wongchitrat P. Antiviral effect of melatonin on Japanese encephalitis virus infection involves inhibition of neuronal apoptosis and neuroinflammation in SH-SY5Y cells. Sci Rep 2023; 13:6063. [PMID: 37055489 PMCID: PMC10099015 DOI: 10.1038/s41598-023-33254-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 04/10/2023] [Indexed: 04/15/2023] Open
Abstract
Japanese encephalitis virus (JEV), a mosquito-borne flavivirus, causes high mortality rates in humans and it is the most clinically important and common cause of viral encephalitis in Asia. To date, there is no specific treatment for JEV infection. Melatonin, a neurotropic hormone, is reported to be effective in combating various bacterial and viral infections. However, the effects of melatonin on JEV infection have not yet been studied. The investigation tested the antiviral effects of melatonin against JEV infection and elucidated the possible molecular mechanisms of inhibition. Melatonin inhibited the viral production in JEV-infected SH-SY5Y cells in a time- and dose-dependent manner. Time-of-addition assays demonstrated a potent inhibitory effect of melatonin at the post-entry stage of viral replication. Molecular docking analysis revealed that melatonin negatively affected viral replication by interfering with physiological function and/or enzymatic activity of both JEV nonstructural 3 (NS3) and NS5 protein, suggesting a possible underlying mechanism of JEV replication inhibition. Moreover, treatment with melatonin reduced neuronal apoptosis and inhibited neuroinflammation induced by JEV infection. The present findings reveal a new property of melatonin as a potential molecule for the further development of anti-JEV agents and treatment of JEV infection.
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Affiliation(s)
- Kuntida Kitidee
- Center for Research Innovation and Biomedical Informatics, Faculty of Medical Technology, Mahidol University, 999 Phutthamonthon 4 Road, Salaya, Nakhon Pathom, 73170, Thailand
| | - Arisara Samutpong
- Center for Research Innovation and Biomedical Informatics, Faculty of Medical Technology, Mahidol University, 999 Phutthamonthon 4 Road, Salaya, Nakhon Pathom, 73170, Thailand
| | - Nattaporn Pakpian
- Center for Research Innovation and Biomedical Informatics, Faculty of Medical Technology, Mahidol University, 999 Phutthamonthon 4 Road, Salaya, Nakhon Pathom, 73170, Thailand
| | - Tanchanok Wisitponchai
- Department of Biomedical Engineering, School of Engineering, King Mongkut's Institute of Technology Ladkrabang, Bangkok, Thailand
| | | | - Russel J Reiter
- Department of Cell Systems and Anatomy, UT Health San Antonio, San Antonio, TX, USA
| | - Prapimpun Wongchitrat
- Center for Research Innovation and Biomedical Informatics, Faculty of Medical Technology, Mahidol University, 999 Phutthamonthon 4 Road, Salaya, Nakhon Pathom, 73170, Thailand.
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Bhubhanil S, Talodthaisong C, Khongkow M, Namdee K, Wongchitrat P, Yingmema W, Hutchison JA, Lapmanee S, Kulchat S. Enhanced wound healing properties of guar gum/curcumin-stabilized silver nanoparticle hydrogels. Sci Rep 2021; 11:21836. [PMID: 34750447 PMCID: PMC8576043 DOI: 10.1038/s41598-021-01262-x] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 10/26/2021] [Indexed: 01/13/2023] Open
Abstract
Biocompatible materials that act as scaffolds for regenerative medicine are of enormous interest. Hydrogel-nanoparticle composites have great potential in this regard, however evaluations of their wound healing and safety in vivo in animal studies are scarce. Here we demonstrate that a guar gum/curcumin-stabilized silver nanoparticle hydrogel composite is an injectable material with exceptional wound healing and antibacterial properties. We show that the curcumin-bound silver nanoparticles themselves exhibit low cytotoxicity and enhance proliferation, migration, and collagen production in in vitro studies of human dermal fibroblasts. We then show that the hydrogel-nanoparticle composite promotes wound healing in in vivo studies on rats, accelerating wound closure by > 40% and reducing bacterial counts by 60% compared to commercial antibacterial gels. Histopathology indicates that the hydrogel composite enhances transition from the inflammation to proliferation stage of healing, promoting the formation of fibroblasts and new blood vessels, while target gene expression studies confirm that the accelerated tissue remodeling occurs along the normal pathways. As such these hydrogel composites show great promise as wound dressing materials with high antibacterial capacity.
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Grants
- 001/2562 Faculty of Medicine, Siam University, Thailand
- 002/2563 Faculty of Medicine, Siam University, Thailand
- 003/02/2563 Research Promotion and Development, Siam University, Thailand
- 003/02/2563 Research Promotion and Development, Siam University, Thailand
- P1952244 target development group grant (Cosmeceuticals) P1952244
- FT180100295 Australian Research Council (ARC) Future Fellowship
- Research and Graduate Studies, Khon Kaen, Thailand
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Affiliation(s)
- Sakkarin Bhubhanil
- Pre-Clinical Department, Faculty of Medicine, Siam University, Bangkok, 10160, Thailand
| | - Chanon Talodthaisong
- Department of Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Mattaka Khongkow
- National Nanotechnology Centre (NANOTEC), National Science and Technology Development Agency, Pathumthani, 12120, Thailand
| | - Katawut Namdee
- National Nanotechnology Centre (NANOTEC), National Science and Technology Development Agency, Pathumthani, 12120, Thailand
| | - Prapimpun Wongchitrat
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Nakon Pathom, 73170, Thailand
| | - Werayut Yingmema
- Laboratory Animal Center, Thammasat University, Pathumthani, 12120, Thailand
| | - James A Hutchison
- School of Chemistry, The University of Melbourne, Parkville, VIC, 3010, Australia
| | - Sarawut Lapmanee
- Pre-Clinical Department, Faculty of Medicine, Siam University, Bangkok, 10160, Thailand.
| | - Sirinan Kulchat
- Department of Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen, 40002, Thailand.
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Nopparat C, Chaopae W, Boontem P, Sopha P, Wongchitrat P, Govitrapong P. Melatonin Attenuates High Glucose-Induced Changes in Beta Amyloid Precursor Protein Processing in Human Neuroblastoma Cells. Neurochem Res 2021; 47:2568-2579. [PMID: 33713326 DOI: 10.1007/s11064-021-03290-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 02/16/2021] [Accepted: 02/26/2021] [Indexed: 01/13/2023]
Abstract
Diabetes mellitus (DM), one of metabolic diseases, has been suggested as a risk factor for Alzheimer's disease (AD). However, how the metabolic pathway activates amyloid precursor protein (APP) processing enzymes then contributes to the increase of amyloid-beta (Aβ) production, is not clearly understood. In the present study, we aimed to examine the protective effect of melatonin against hyperglycemia-induced alterations in the amyloidogenic pathway. High concentration of glucose was used to induce hyperglycemia in human neuroblastoma SH-SY5Y cells. We found that 30 mM glucose affected the expression of insulin receptors and glucose transporters, which indicated the disruption of glucose sensing. High glucose induced the activation of the phosphorylated protein kinase B (pAkt)/GSK-3β signaling pathway and a significant increase in the expression of β-site beta APP cleaving enzyme (BACE1), presenilin1 (PS1) and Aβ42. Pretreatment with melatonin significantly reversed these parameters. We also showed that these effects are similar to those effects in the presence of the GSK-3β blocker, N-(4-methoxybenyl)-N'-(5-nitro-1,3-thiazol-2-yl) urea (ARA) in glucose-treated hyperglycemic cells. These suggested that melatonin exerted an inhibitory effect on the activation of APP-cleaving enzymes via the GSK-3β signaling pathway. Pretreatment with luzindole, a melatonin receptor MT1 antagonist, significantly prevented the effect of melatonin on the glucose-induced increase level of APP processing enzymes. This suggested that melatonin attenuated the toxic effect on hyperglycemia involving the amyloidogenic pathway partially mediated via melatonin receptor. Taken together the present results suggested that melatonin has a beneficial role in preventing Aβ generation in a cellular model of hyperglycemia-induced DM.
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Affiliation(s)
- Chutikorn Nopparat
- Research Center for Neuroscience, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand
| | - Worawut Chaopae
- Chulabhorn Graduate Institute, Chulabhorn Royal Academy, 54 Kamphaeng Phet 6 Road Lak Si, Bangkok, 10210, Thailand
| | - Parichart Boontem
- Chulabhorn Graduate Institute, Chulabhorn Royal Academy, 54 Kamphaeng Phet 6 Road Lak Si, Bangkok, 10210, Thailand
| | - Pattarawut Sopha
- Chulabhorn Graduate Institute, Chulabhorn Royal Academy, 54 Kamphaeng Phet 6 Road Lak Si, Bangkok, 10210, Thailand
| | - Prapimpun Wongchitrat
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Nakhon Pathom, Thailand
| | - Piyarat Govitrapong
- Chulabhorn Graduate Institute, Chulabhorn Royal Academy, 54 Kamphaeng Phet 6 Road Lak Si, Bangkok, 10210, Thailand.
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Ruankham W, Suwanjang W, Wongchitrat P, Prachayasittikul V, Prachayasittikul S, Phopin K. Sesamin and sesamol attenuate H 2O 2-induced oxidative stress on human neuronal cells via the SIRT1-SIRT3-FOXO3a signaling pathway. Nutr Neurosci 2021; 24:90-101. [PMID: 30929586 DOI: 10.1080/1028415x.2019.1596613] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Background: An imbalance of free radicals and antioxidant defense systems in physiological processes can result in protein/DNA damage, inflammation, and cellular apoptosis leading to neurodegenerative disorders such as Alzheimer's disease (AD), Parkinson's disease (PD), and Huntington's disease (HD). Sesamin and sesamol, compounds derived from sesame seeds and oil, have been reported to exert various pharmacological effects, especially antioxidant activity. However, their molecular mechanisms against the oxidative stress induced by exogenous hydrogen peroxide (H2O2) remain to be elucidated. Aim: In this study, neuroprotective effects of sesamin and sesamol on H2O2-induced human neuroblastoma (SH-SY5Y) cell death and possible signaling pathways in the cells were explored. Methods: MTT assay and flow cytometry were conducted to determine cell viability and apoptotic profiles of neuronal cells treated with sesamin and sesamol. Carboxy-DCFDA assay was used to measure reactive oxygen species (ROS). Moreover, Western blot analysis was performed to investigate protein profiles associated with neuroprotection. Results: Pretreatment of the cells with 1 µM of sesamin and sesamol remarkably reduced the SH-SY5Y cell death induced by 400 µM H2O2 as well as the intracellular ROS production. Moreover, the molecular mechanisms underlying neuroprotection of the compounds were associated with activating SIRT1-SIRT3-FOXO3a expression, inhibiting BAX (proapoptotic protein), and upregulating BCL-2 (anti-apoptotic protein). Conclusion: The findings suggest that sesamin and sesamol are compounds that potentially protect neuronal cells against oxidative stress similar to that of the resveratrol, the reference compound. These antioxidants are thus of interest for further investigation in in vivo models of neuroprotection.
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Affiliation(s)
- Waralee Ruankham
- Department of Clinical Microbiology and Applied Technology, Faculty of Medical Technology, Mahidol University, Bangkok, Thailand
| | - Wilasinee Suwanjang
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Bangkok, Thailand
| | - Prapimpun Wongchitrat
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Bangkok, Thailand
| | - Virapong Prachayasittikul
- Department of Clinical Microbiology and Applied Technology, Faculty of Medical Technology, Mahidol University, Bangkok, Thailand
| | - Supaluk Prachayasittikul
- Center of Data Mining and Biomedical Informatics, Faculty of Medical Technology, Mahidol University, Bangkok, Thailand
| | - Kamonrat Phopin
- Department of Clinical Microbiology and Applied Technology, Faculty of Medical Technology, Mahidol University, Bangkok, Thailand
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Bangkok, Thailand
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Pakpian N, Phopin K, Kitidee K, Govitrapong P, Wongchitrat P. Alterations in Mitochondrial Dynamic-related Genes in the Peripheral Blood of Alzheimer's Disease Patients. Curr Alzheimer Res 2020; 17:616-625. [PMID: 33023448 DOI: 10.2174/1567205017666201006162538] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 08/05/2020] [Accepted: 09/04/2020] [Indexed: 12/23/2022]
Abstract
BACKGROUND Mitochondrial dysfunction is a pathological feature that manifests early in the brains of patients with Alzheimer's Disease (AD). The disruption of mitochondrial dynamics contributes to mitochondrial morphological and functional impairments. Our previous study demonstrated that the expression of genes involved in amyloid beta generation was altered in the peripheral blood of AD patients. OBJECTIVE The aim of this study was to further investigate the relative levels of mitochondrial genes involved in mitochondrial dynamics, including mitochondrial fission and fusion, and mitophagy in peripheral blood samples from patients with AD compared to healthy controls. METHODS The mRNA levels were analyzed by real-time polymerase chain reaction. Gene expression profiles were assessed in relation to cognitive performance. RESULTS Significant changes were observed in the mRNA expression levels of fission-related genes; Fission1 (FIS1) levels in AD subjects were significantly higher than those in healthy controls, whereas Dynamin- related protein 1 (DRP1) expression was significantly lower in AD subjects. The levels of the mitophagy-related genes, PTEN-induced kinase 1 (PINK1) and microtubule-associated protein 1 light chain 3 (LC3), were significantly increased in AD subjects and elderly controls compared to healthy young controls. The mRNA levels of Parkin (PARK2) were significantly decreased in AD. Correlations were found between the expression levels of FIS1, DRP1 and PARK2 and cognitive performance scores. CONCLUSION Alterations in mitochondrial dynamics in the blood may reflect impairments in mitochondrial functions in the central and peripheral tissues of AD patients. Mitochondrial fission, together with mitophagy gene profiles, might be potential considerations for the future development of blood-based biomarkers for AD.
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Affiliation(s)
- Nattaporn Pakpian
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Salaya, Nakhon Pathom, Thailand
| | - Kamonrat Phopin
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Salaya, Nakhon Pathom, Thailand
| | - Kuntida Kitidee
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Salaya, Nakhon Pathom, Thailand
| | | | - Prapimpun Wongchitrat
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Salaya, Nakhon Pathom, Thailand
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11
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Wongchitrat P, Pakpian N, Kitidee K, Phopin K, Dharmasaroja PA, Govitrapong P. Alterations in the Expression of Amyloid Precursor Protein Cleaving Enzymes mRNA in Alzheimer Peripheral Blood. Curr Alzheimer Res 2020; 16:29-38. [PMID: 30411686 DOI: 10.2174/1567205015666181109103742] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 10/19/2018] [Accepted: 11/01/2018] [Indexed: 01/08/2023]
Abstract
BACKGROUND Alzheimer's disease (AD) is the most common cause of dementia in elderly populations. Changes in the expression of the Amyloid Precursor Protein (APP)-cleaving enzymes directly affect the formation of Amyloid Beta (Aβ) plaques, a neuropathological hallmark of AD. OBJECTIVE We used peripheral blood from AD patients to investigate the expression of genes related to APP-processing [(β-site APP-cleaving enzyme 1 (BACE1), presenilin1 (PSEN1), and a disintegrin and metalloproteinase family 10 (ADAM10) and 17 (ADAM17)] and the epigenetic genes sirtuin (SIRT)1-3, which regulate Aβ production. METHOD Real-time polymerase chain reactions were performed to determine the specific mRNA levels in plasma. The mRNA levels in AD patients were compared to those in healthy persons and assessed in relation to the subjects' cognitive performance. RESULTS BACE1 mRNA level in AD subjects was significantly higher than those of healthy controls, whereas ADAM10 level was significantly lower in the AD subjects. The SIRT1 level was significantly decreased, while that of SIRT2 was increased in AD subjects and elderly controls compared to levels in healthy young control. In addition, correlations were found between the expression levels of BACE1, ADAM10 and SIRT1 and cognitive performance scores. Total Aβ (Aβ40+Aβ42) levels and the Aβ40/Aβ42 ratio were significantly increased in the AD subjects, whereas decrease in plasma Aβ42 was found in AD subjects. There was a negative correlation between Aβ40 or total Aβ and Thai Mental State Examination (TMSE) while there was no correlation between Aβ40/Aβ42 ratio or Aβ42 and TMSE. CONCLUSION The present findings provide evidence and support for the potential roles of these enzymes that drive Aβ synthesis and for epigenetic regulation in AD progression and development, which can possibly be considered peripheral markers of AD.
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Affiliation(s)
- Prapimpun Wongchitrat
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Salaya, Nakon Pathom, Thailand
| | - Nattaporn Pakpian
- Research Center for Neuroscience, Institute of Molecular Biosciences, Mahidol University, Nakon Pathom, Thailand
| | - Kuntida Kitidee
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Salaya, Nakon Pathom, Thailand
| | - Kamonrat Phopin
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Salaya, Nakon Pathom, Thailand
| | - Pornpatr A Dharmasaroja
- Stroke and Neurodegenerative Diseases Research Unit, Faculty of Medicine, Thammasat University, Pathum Thani, Thailand
| | - Piyarat Govitrapong
- Research Center for Neuroscience, Institute of Molecular Biosciences, Mahidol University, Nakon Pathom, Thailand.,Chulabhorn Graduate Institute, Chulabhorn Royal Academy, Bangkok, Thailand
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12
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Gay NH, Suwanjang W, Ruankham W, Songtawee N, Wongchitrat P, Prachayasittikul V, Prachayasittikul S, Phopin K. Butein, isoliquiritigenin, and scopoletin attenuate neurodegeneration via antioxidant enzymes and SIRT1/ADAM10 signaling pathway. RSC Adv 2020; 10:16593-16606. [PMID: 35498835 PMCID: PMC9053097 DOI: 10.1039/c9ra06056a] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2019] [Accepted: 04/06/2020] [Indexed: 11/21/2022] Open
Abstract
Neuronal cell death is a key feature of neurodegenerative disorders such as Parkinson's and Alzheimer's diseases. Plant polyphenols, namely butein, isoliquiritigenin, and scopoletin, have been shown to exhibit various biological activities including anti-inflammatory, antimicrobial, and antioxidant activities. Herein, butein, isoliquiritigenin, and scopoletin were explored for their neuroprotective properties against oxidative stress-induced human dopaminergic SH-SY5Y cell death. The cells exposed to hydrogen peroxide (H2O2) revealed a reduction in cell viability and increases in apoptosis and levels of reactive oxygen species (ROS). Interestingly, pretreatment of SH-SY5Y cells with 5 μM of butein, isoliquiritigenin, or scopoletin protected against the cell death induced by H2O2, and decreased the levels of apoptotic cells and ROS. In addition, the levels of SIRT1, FoxO3a, ADAM10, BCL-2, and antioxidant enzymes (catalase and SOD2) were maintained in the cells pretreated with butein, isoliquiritigenin, or scopoletin before H2O2 treatment compared to cells without pretreatment and the reference (resveratrol). Molecular docking analysis revealed that the interactions between the activator-binding sites of SIRT1 and the phenolic compounds were similar to those of resveratrol. Taken together, the data suggest that these polyphenolic compounds could be potential candidates for prevention and/or treatment of neurodegeneration. Neuronal cells exposed to H2O2 may undergo increase ROS, reduction in cell viability and cell death. Butein, isoliquiritigenin, and scopoletin ameliorated H2O2-induced neurotoxicity by reducing ROS, balancing antioxidants and activating SIRT1-FoxO3a-ADAM10 pathway.![]()
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Affiliation(s)
- Naw Hser Gay
- Center for Research and Innovation
- Faculty of Medical Technology
- Mahidol University
- Bangkok 10700
- Thailand
| | - Wilasinee Suwanjang
- Center for Research and Innovation
- Faculty of Medical Technology
- Mahidol University
- Bangkok 10700
- Thailand
| | - Waralee Ruankham
- Center for Research and Innovation
- Faculty of Medical Technology
- Mahidol University
- Bangkok 10700
- Thailand
| | - Napat Songtawee
- Department of Clinical Chemistry
- Faculty of Medical Technology
- Mahidol University
- Bangkok 10700
- Thailand
| | - Prapimpun Wongchitrat
- Center for Research and Innovation
- Faculty of Medical Technology
- Mahidol University
- Bangkok 10700
- Thailand
| | - Virapong Prachayasittikul
- Department of Clinical Microbiology and Applied Technology
- Faculty of Medical Technology
- Mahidol University
- Bangkok 10700
- Thailand
| | - Supaluk Prachayasittikul
- Center of Data Mining and Biomedical Informatics
- Faculty of Medical Technology
- Mahidol University
- Bangkok 10700
- Thailand
| | - Kamonrat Phopin
- Center for Research and Innovation
- Faculty of Medical Technology
- Mahidol University
- Bangkok 10700
- Thailand
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Kamsrijai U, Wongchitrat P, Nopparat C, Satayavivad J, Govitrapong P. Melatonin attenuates streptozotocin-induced Alzheimer-like features in hyperglycemic rats. Neurochem Int 2020; 132:104601. [DOI: 10.1016/j.neuint.2019.104601] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 10/17/2019] [Accepted: 11/11/2019] [Indexed: 12/15/2022]
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14
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Van Hau T, Ruankham W, Suwanjang W, Songtawee N, Wongchitrat P, Pingaew R, Prachayasittikul V, Prachayasittikul S, Phopin K. Repurposing of Nitroxoline Drug for the Prevention of Neurodegeneration. Chem Res Toxicol 2019; 32:2182-2191. [DOI: 10.1021/acs.chemrestox.9b00183] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Truong Van Hau
- Department of Clinical Microbiology and Applied Technology, Faculty of Medical Technology, Mahidol University, Bangkok 10700, Thailand
- Eastern International University, Binh Duong 820000, Vietnam
| | - Waralee Ruankham
- Department of Clinical Microbiology and Applied Technology, Faculty of Medical Technology, Mahidol University, Bangkok 10700, Thailand
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Bangkok 10700, Thailand
| | - Wilasinee Suwanjang
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Bangkok 10700, Thailand
| | - Napat Songtawee
- Department of Clinical Chemistry, Faculty of Medical Technology, Mahidol University, Bangkok 10700, Thailand
| | - Prapimpun Wongchitrat
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Bangkok 10700, Thailand
| | - Ratchanok Pingaew
- Department of Chemistry, Faculty of Science, Srinakharinwirot University, Bangkok 10110, Thailand
| | - Virapong Prachayasittikul
- Department of Clinical Microbiology and Applied Technology, Faculty of Medical Technology, Mahidol University, Bangkok 10700, Thailand
| | - Supaluk Prachayasittikul
- Center of Data Mining and Biomedical Informatics, Faculty of Medical Technology, Mahidol University, Bangkok 10700, Thailand
| | - Kamonrat Phopin
- Department of Clinical Microbiology and Applied Technology, Faculty of Medical Technology, Mahidol University, Bangkok 10700, Thailand
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Bangkok 10700, Thailand
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15
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Wongchitrat P, Samutpong A, Lerdsamran H, Prasertsopon J, Yasawong M, Govitrapong P, Puthavathana P, Kitidee K. Elevation of Cleaved p18 Bax Levels Associated with the Kinetics of Neuronal Cell Death during Japanese Encephalitis Virus Infection. Int J Mol Sci 2019; 20:ijms20205016. [PMID: 31658698 PMCID: PMC6834179 DOI: 10.3390/ijms20205016] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 10/06/2019] [Accepted: 10/08/2019] [Indexed: 11/16/2022] Open
Abstract
Japanese encephalitis virus (JEV) infection induces uncontrolled neuronal apoptosis, leading to irreversible brain damage. However, the mechanism of JEV-induced neuronal apoptosis has not been clearly elucidated. This study aimed to investigate both virus replication and neuronal cell apoptosis during JEV infection in human neuroblastoma SH-SY5Y cells. As a result, the kinetic productions of new viral progeny were time- and dose-dependent. The stimulation of SH-SY5Y cell apoptosis was dependent on the multiplicity of infections (MOIs) and infection periods, particularly during the late period of infection. Interestingly, we observed that of full-length Bax (p21 Bax) level started to decrease, which corresponded to the increased level of its cleaved form (p18 Bax). The formation of p18 Bax resulting in cytochrome c release into the cytosol appeared to correlate with JEV-induced apoptotic cell death together with the activation of caspase-3/7 activity, especially during the late stage of a robust viral infection. Therefore, our results suggest another possible mechanism of JEV-induced apoptotic cell death via the induction of the proteolysis of endogenous p21 Bax to generate p18 Bax. This finding could be a new avenue to facilitate novel drug discovery for the further development of therapeutic treatments that could relieve neuronal damage from JEV infection.
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Affiliation(s)
- Prapimpun Wongchitrat
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Salaya, Nakhon Pathom 73170, Thailand.
| | - Arisara Samutpong
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Salaya, Nakhon Pathom 73170, Thailand.
| | - Hatairat Lerdsamran
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Salaya, Nakhon Pathom 73170, Thailand.
| | - Jarunee Prasertsopon
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Salaya, Nakhon Pathom 73170, Thailand.
| | - Montri Yasawong
- Chulabhorn Graduate Institute, Chulabhorn Royal Academy, Bangkok 10210, Thailand.
| | - Piyarat Govitrapong
- Chulabhorn Graduate Institute, Chulabhorn Royal Academy, Bangkok 10210, Thailand.
- Research Center for Neuroscience, Institute of Molecular Biosciences, Mahidol University, Salaya, Nakhon Pathom 73170, Thailand.
| | - Pilaipan Puthavathana
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Salaya, Nakhon Pathom 73170, Thailand.
| | - Kuntida Kitidee
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Salaya, Nakhon Pathom 73170, Thailand.
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16
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Schaduangrat N, Prachayasittikul V, Choomwattana S, Wongchitrat P, Phopin K, Suwanjang W, Malik AA, Vincent B, Nantasenamat C. Multidisciplinary approaches for targeting the secretase protein family as a therapeutic route for Alzheimer's disease. Med Res Rev 2019; 39:1730-1778. [PMID: 30628099 DOI: 10.1002/med.21563] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2018] [Revised: 11/21/2018] [Accepted: 12/24/2018] [Indexed: 12/27/2022]
Abstract
The continual increase of the aging population worldwide renders Alzheimer's disease (AD) a global prime concern. Several attempts have been focused on understanding the intricate complexity of the disease's development along with the on- andgoing search for novel therapeutic strategies. Incapability of existing AD drugs to effectively modulate the pathogenesis or to delay the progression of the disease leads to a shift in the paradigm of AD drug discovery. Efforts aimed at identifying AD drugs have mostly focused on the development of disease-modifying agents in which effects are believed to be long lasting. Of particular note, the secretase enzymes, a group of proteases responsible for the metabolism of the β-amyloid precursor protein (βAPP) and β-amyloid (Aβ) peptides production, have been underlined for their promising therapeutic potential. This review article attempts to comprehensively cover aspects related to the identification and use of drugs targeting the secretase enzymes. Particularly, the roles of secretases in the pathogenesis of AD and their therapeutic modulation are provided herein. Moreover, an overview of the drug development process and the contribution of computational (in silico) approaches for facilitating successful drug discovery are also highlighted along with examples of relevant computational works. Promising chemical scaffolds, inhibitors, and modulators against each class of secretases are also summarized herein. Additionally, multitarget secretase modulators are also taken into consideration in light of the current growing interest in the polypharmacology of complex diseases. Finally, challenging issues and future outlook relevant to the discovery of drugs targeting secretases are also discussed.
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Affiliation(s)
- Nalini Schaduangrat
- Faculty of Medical Technology, Center of Data Mining and Biomedical Informatics, Mahidol University, Bangkok, Thailand
| | - Veda Prachayasittikul
- Faculty of Medical Technology, Center of Data Mining and Biomedical Informatics, Mahidol University, Bangkok, Thailand
| | - Saowapak Choomwattana
- Faculty of Medical Technology, Center of Data Mining and Biomedical Informatics, Mahidol University, Bangkok, Thailand
| | - Prapimpun Wongchitrat
- Faculty of Medical Technology, Center for Research and Innovation, Mahidol University, Bangkok, Thailand
| | - Kamonrat Phopin
- Faculty of Medical Technology, Center for Research and Innovation, Mahidol University, Bangkok, Thailand
| | - Wilasinee Suwanjang
- Faculty of Medical Technology, Center for Research and Innovation, Mahidol University, Bangkok, Thailand
| | - Aijaz Ahmad Malik
- Faculty of Medical Technology, Center of Data Mining and Biomedical Informatics, Mahidol University, Bangkok, Thailand
| | - Bruno Vincent
- Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand.,Centre National de la Recherche Scientifique, Paris, France
| | - Chanin Nantasenamat
- Faculty of Medical Technology, Center of Data Mining and Biomedical Informatics, Mahidol University, Bangkok, Thailand
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Htut Win S, Wongchitrat P, Kladsomboon S, A. Dharmasaroja P, Apilux A. Dot-blot sandwich immunoassay with silver signal enhancement for simple amyloid beta protein fragment 1-42 detection. ScienceAsia 2019. [DOI: 10.2306/scienceasia1513-1874.2019.45.260] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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18
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Gay NH, Phopin K, Suwanjang W, Songtawee N, Ruankham W, Wongchitrat P, Prachayasittikul S, Prachayasittikul V. Neuroprotective Effects of Phenolic and Carboxylic Acids on Oxidative Stress-Induced Toxicity in Human Neuroblastoma SH-SY5Y Cells. Neurochem Res 2018; 43:619-636. [DOI: 10.1007/s11064-017-2463-x] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Revised: 11/26/2017] [Accepted: 12/29/2017] [Indexed: 12/26/2022]
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19
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Phopin K, Prachayasittikul S, Gay N, Suwanjang W, Ruankham W, Wongchitrat P, Prachayasittikul V. Attenuation of oxidative stress-induced neuronal cell death by Hydnophytum formicarum Jack. ASIAN PAC J TROP MED 2018. [DOI: 10.4103/1995-7645.237185] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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20
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Jenwitheesuk A, Park S, Wongchitrat P, Tocharus J, Mukda S, Shimokawa I, Govitrapong P. Comparing the Effects of Melatonin with Caloric Restriction in the Hippocampus of Aging Mice: Involvement of Sirtuin1 and the FOXOs Pathway. Neurochem Res 2017; 43:153-161. [PMID: 28770437 DOI: 10.1007/s11064-017-2369-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2017] [Revised: 07/25/2017] [Accepted: 07/26/2017] [Indexed: 12/31/2022]
Abstract
It has been suggested that age-related neurodegeneration might be associated with neuropeptide Y (NPY); sirtuin1 (SIRT1) and forkhead box transcription factors O subfamily (FOXOs) pathways. Melatonin, a hormone mainly secreted by the pineal gland, is another anti-aging agent associated with the SIRT1-FOXOs pathway. This study aimed to compare the effects of melatonin (Mel) and caloric restriction (CR) on the expression of Sirt1, FoxO1, FoxO3a and FOXOs target genes in the aging mouse hippocampus. Neuropeptide Y-knockout (NpyKO) and wild-type (WT) male mice aged 19 months were previously treated either with food ad libitum or CR for 16 months. WT old animals were divided into four groups: control, CR, Mel and CR+Mel treated groups. The Mel and CR+Mel were treated with melatonin 10 mg/kg, daily, subcutaneously for 7 consecutive days. Mel treatment upregulated the mRNA expression of Sirt1, FOXOs (FoxO1 and FoxO3a) target genes that regulated the cell cycle [e.g., cyclin-dependent kinase inhibitor 1B (p27)], Wingless and INT-1 (Wnt1) and inducible signaling pathway protein 1 (Wisp1) in the aged mouse hippocampus. CR treatment also showed the similar actions. However, the mRNA expression of Sirt1, FoxO1, FoxO3a, p27 or Wisp1 did not alter in the CR+Mel group when compared with CR or Mel group. Melatonin could not produce any additive effect on the CR treatment group, suggesting that both treatments mimicked the effect, possibly via the same pathway. NPY which mediates physiological adaptations to energy deficits is an essential link between CR and longevity in mice. In order to focus on the role of Npy in mediating the effects of melatonin, the gene expression between NpyKO and WT male mice were compared. Our data showed that, in the absence of Npy, melatonin could not mediate effects on those gene expressions, suggesting that Npy was required for melatonin to mediate the effect, possibly, on life extension.
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Affiliation(s)
- Anorut Jenwitheesuk
- Research Center for Neuroscience, Institute of Molecular Biosciences, Mahidol University, Salaya, Thailand
| | - Seongjoon Park
- Department of Pathology, Nagasaki University School of Medicine and Graduate School of Biomedical Sciences, 1-12-4, Sakamoto, Nagasaki, 852-8523, Japan
| | - Prapimpun Wongchitrat
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Salaya, Nakon Pathom, 73170, Thailand
| | - Jiraporn Tocharus
- Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Sujira Mukda
- Research Center for Neuroscience, Institute of Molecular Biosciences, Mahidol University, Salaya, Thailand
| | - Isao Shimokawa
- Department of Pathology, Nagasaki University School of Medicine and Graduate School of Biomedical Sciences, 1-12-4, Sakamoto, Nagasaki, 852-8523, Japan.
| | - Piyarat Govitrapong
- Research Center for Neuroscience, Institute of Molecular Biosciences, Mahidol University, Salaya, Thailand. .,Center for Neuroscience and Department of Pharmacology, Faculty of Science, Mahidol University, Salaya, Thailand. .,Chulabhorn Graduate Institute, Chulabhorn Royal Academy, Kamphaeng Phet 6 Road, Lak Si, Bangkok, 10210, Thailand.
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21
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Wongchitrat P, Klosen P, Pannengpetch S, Kitidee K, Govitrapong P, Isarankura-Na-Ayudhya C. High-fat diet-induced plasma protein and liver changes in obese rats can be attenuated by melatonin supplementation. Nutr Res 2017. [PMID: 28633871 DOI: 10.1016/j.nutres.2017.04.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Obesity triggers changes in protein expression in various organs that might participate in the pathogenesis of obesity. Melatonin has been reported to prevent or attenuate such pathological protein changes in several chronic diseases. However, such melatonin effects on plasma proteins have not yet been studied in an obesity model. Using a proteomic approach, we investigated the effect of melatonin on plasma protein profiles after rats were fed a high-fat diet (HFD) to induce obesity. We hypothesized that melatonin would attenuate abnormal protein expression in obese rats. After 10weeks of the HFD, animals displayed increased body weight and fat accumulation as well as increased glucose levels, indicating an obesity-induced prediabetes mellitus-like state. Two-dimensional gel electrophoresis and liquid chromatography-mass spectrometry/mass spectrometry revealed 12 proteins whose expression was altered in response to the HFD and the melatonin treatment. The altered proteins are related to the development of liver pathology, such as cirrhosis (α1-antiproteinase), thrombosis (fibrinogen, plasminogen), and inflammation (mannose-binding protein A, complement C4, complement factor B), contributing to liver steatosis or hepatic cell death. Melatonin treatment most probably reduced the severity of the HFD-induced obesity by reducing the amplitude of HFD-induced plasma protein changes. In conclusion, we identified several potential biomarkers associated with the progression of obesity and its complications, such as liver damage. Furthermore, our findings reveal melatonin's beneficial effect of attenuating plasma protein changes and liver pathogenesis in obese rats.
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Affiliation(s)
- Prapimpun Wongchitrat
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, 999 Phutthamonthon 4 Rd, Nakhonpathom 73170, Thailand.
| | - Paul Klosen
- Institut des Neurosciences Cellulaires et Intégratives, 5 rue Blaise Pascal, Strasbourg 67084, France; Research Center for Neuroscience, Institute of Molecular Biosciences, Mahidol University, 25/25 Phuttamonthon 4 Rd, Nakhonpathom 73170, Thailand
| | - Supitcha Pannengpetch
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, 999 Phutthamonthon 4 Rd, Nakhonpathom 73170, Thailand
| | - Kuntida Kitidee
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, 999 Phutthamonthon 4 Rd, Nakhonpathom 73170, Thailand
| | - Piyarat Govitrapong
- Research Center for Neuroscience, Institute of Molecular Biosciences, Mahidol University, 25/25 Phuttamonthon 4 Rd, Nakhonpathom 73170, Thailand; Chulabhorn Graduate Institute, Chulabhorn Royal Academy, 54 Kamphaeng Phet 6 Rd, Lak Si, Bangkok 10210, Thailand
| | - Chartchalerm Isarankura-Na-Ayudhya
- Department of Clinical Microbiology and Applied Technology, Faculty of Medical Technology, Mahidol University, 999 Phutthamonthon 4 Rd, Nakhonpathom 73170, Thailand
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22
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Jenwitheesuk A, Boontem P, Wongchitrat P, Tocharus J, Mukda S, Govitrapong P. Melatonin regulates the aging mouse hippocampal homeostasis via the sirtuin1-FOXO1 pathway. EXCLI J 2017; 16:340-353. [PMID: 28507478 PMCID: PMC5427465 DOI: 10.17179/excli2016-852] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Accepted: 03/01/2017] [Indexed: 12/15/2022]
Abstract
Sirtuin1 (SIRT1) and forkhead box transcription factor O subfamily 1 (FOXO1) play vital roles in the maintenance of hippocampal neuronal homeostasis during aging. Our previous study showed that melatonin, a hormone mainly secreted by the pineal gland, restored the impaired memory of aged mice. Age-related neuronal energy deficits contribute to the pathogenesis of several neurodegenerative disorders. An attempt has been made to determine whether the effect of melatonin is mediated through the SIRT1-FOXO1 pathways. The present results showed that aged mice (22 months old) exhibited significantly downregulated SIRT1, FOXO1, and melatonin receptors MT1 and MT2 protein expression but upregulated tumor suppressor protein 53 (p53), acetyl-p53 protein (Ac-p53), mouse double minute 2 homolog (MDM2), Dickkopf-1 (DKK1) protein expression in mouse hippocampus compared with the young group. Melatonin treatment (10 mg/kg, daily in drinking water for 6 months) in aged mice significantly attenuated the age-induced downregulation of SIRT1, FOXO1, MT1 and MT2 protein expression and attenuated the age-induced increase in p53, ac-p53, MDM2, and DKK1 protein and mRNA expression. Melatonin decreased p53 and MDM2 expression, which led to a decrease in FOXO1 degradation. These present results suggest that melatonin may help the hippocampal neuronal homeostasis by increasing SIRT1, FOXO1 and melatonin receptors expression while decreasing DKK1 expression in the aging hippocampus. DKK1 can be induced by the accumulation of amyloid β (Aβ) which is the major hallmark of Alzheimer's disease.
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Affiliation(s)
- Anorut Jenwitheesuk
- Research Center for Neuroscience, Institute of Molecular Biosciences, Mahidol University, Salaya, Nakornpathom, Thailand
| | - Parichart Boontem
- Chulabhorn Graduate Institute, Chulabhorn Royal Academy, Bangkok 10210, Thailand
| | - Prapimpun Wongchitrat
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Salaya, Nakon Pathom 73170, Thailand
| | - Jiraporn Tocharus
- Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Sujira Mukda
- Research Center for Neuroscience, Institute of Molecular Biosciences, Mahidol University, Salaya, Nakornpathom, Thailand
| | - Piyarat Govitrapong
- Research Center for Neuroscience, Institute of Molecular Biosciences, Mahidol University, Salaya, Nakornpathom, Thailand.,Chulabhorn Graduate Institute, Chulabhorn Royal Academy, Bangkok 10210, Thailand.,Center for Neuroscience and Department of Pharmacology, Faculty of Science, Mahidol University, Bangkok, Thailand
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Prachayasittikul V, Prathipati P, Pratiwi R, Phanus-Umporn C, Malik AA, Schaduangrat N, Seenprachawong K, Wongchitrat P, Supokawej A, Prachayasittikul V, Wikberg JES, Nantasenamat C. Exploring the epigenetic drug discovery landscape. Expert Opin Drug Discov 2017; 12:345-362. [PMID: 28276705 DOI: 10.1080/17460441.2017.1295954] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
INTRODUCTION Epigenetic modification has been implicated in a wide range of diseases and the ability to modulate such systems is a lucrative therapeutic strategy in drug discovery. Areas covered: This article focuses on the concepts and drug discovery aspects of epigenomics. This is achieved by providing a survey of the following concepts: (i) factors influencing epigenetics, (ii) diseases arising from epigenetics, (iii) epigenetic enzymes as druggable targets along with coverage of existing FDA-approved drugs and pharmacological agents, and (iv) drug repurposing/repositioning as a means for rapid discovery of pharmacological agents targeting epigenetics. Expert opinion: Despite significant interests in targeting epigenetic modifiers as a therapeutic route, certain classes of target proteins are heavily studied while some are less characterized. Thus, such orphan target proteins are not yet druggable with limited report of active modulators. Current research points towards a great future with novel drugs directed to the many complex multifactorial diseases of humans, which are still often poorly understood and difficult to treat.
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Affiliation(s)
- Veda Prachayasittikul
- a Center of Data Mining and Biomedical Informatics, Faculty of Medical Technology , Mahidol University , Bangkok , Thailand
| | - Philip Prathipati
- b National Institutes of Biomedical Innovation, Health and Nutrition , Osaka , Japan
| | - Reny Pratiwi
- a Center of Data Mining and Biomedical Informatics, Faculty of Medical Technology , Mahidol University , Bangkok , Thailand
| | - Chuleeporn Phanus-Umporn
- a Center of Data Mining and Biomedical Informatics, Faculty of Medical Technology , Mahidol University , Bangkok , Thailand
| | - Aijaz Ahmad Malik
- a Center of Data Mining and Biomedical Informatics, Faculty of Medical Technology , Mahidol University , Bangkok , Thailand
| | - Nalini Schaduangrat
- a Center of Data Mining and Biomedical Informatics, Faculty of Medical Technology , Mahidol University , Bangkok , Thailand
| | - Kanokwan Seenprachawong
- c Department of Clinical Microscopy, Faculty of Medical Technology , Mahidol University , Bangkok , Thailand
| | - Prapimpun Wongchitrat
- d Center for Research and Innovation, Faculty of Medical Technology , Mahidol University , Bangkok , Thailand
| | - Aungkura Supokawej
- c Department of Clinical Microscopy, Faculty of Medical Technology , Mahidol University , Bangkok , Thailand
| | - Virapong Prachayasittikul
- e Department of Clinical Microbiology and Applied Technology, Faculty of Medical Technology , Mahidol University , Bangkok , Thailand
| | - Jarl E S Wikberg
- f Department of Pharmaceutical Biosciences , Uppsala University , Uppsala , Sweden
| | - Chanin Nantasenamat
- a Center of Data Mining and Biomedical Informatics, Faculty of Medical Technology , Mahidol University , Bangkok , Thailand
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Wongchitrat P, Lansubsakul N, Kamsrijai U, Sae-Ung K, Mukda S, Govitrapong P. Melatonin attenuates the high-fat diet and streptozotocin-induced reduction in rat hippocampal neurogenesis. Neurochem Int 2016; 100:97-109. [PMID: 27620814 DOI: 10.1016/j.neuint.2016.09.006] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Revised: 08/10/2016] [Accepted: 09/06/2016] [Indexed: 12/15/2022]
Abstract
A deviant level of melatonin in blood circulation has been associated with the development of diabetes and with learning and memory deficiencies. Melatonin might have an important function in diabetes control; however, the mechanism of melatonin in diabetes remains unknown. The present study aimed to investigate the hyperglycemic condition induced by high-fat diet (HFD) feeding and streptozotocin (STZ) injection and to examine the effect of melatonin on adult hippocampal functions. HFD-fed and STZ-treated rats significantly increased blood glucose level. The present study showed that HFD-fed and STZ-treated rats significantly impaired memory in the Morris Water Maze task, reduced neurogenesis in the hippocampus shown by a reduction in nestin, doublecortin (DCX) and β-III tubulin immunoreactivities, reduced axon terminal markers, synaptophysin, reduced dendritic marker including postsynaptic density 95 (PSD-95) and the glutamate receptor subunit NR2A. Moreover, a significant downregulation of melatonin receptor, insulin receptor-β (IR-β) and both p-IR-β and phosphorylated extracellular signal-regulated kinase (p-ERK) occurred in HFD-fed and STZ-treated rats, while the level of glial fibrillary acidic protein (GFAP) increased. Treatment of melatonin, rats had shorter escape latencies and remained in the target quadrant longer compared to the HFD-fed and STZ-treated rats. Melatonin attenuated the reduction of neurogenesis, synaptogenesis and the induction of astrogliosis. Moreover, melatonin countered the reduction of melatonin receptor, insulin receptor and downstream signaling pathway for insulin. Our data suggested that the dysfunction of insulin signaling pathway occurred in the diabetes may provide a convergent mechanism of hippocampal impaired neurogenesis and synaptogenesis lead to impair memory while melatonin reverses these effects, suggesting that melatonin may reduce the pathogenesis of diabetes.
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Affiliation(s)
- Prapimpun Wongchitrat
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Salaya, Nakon Pathom, 73170, Thailand
| | - Niyada Lansubsakul
- Research Center for Neuroscience, Institute of Molecular Biosciences, Mahidol University, Salaya, Nakon Pathom, 73170, Thailand; Department of Anatomy, Faculty of Veterinary Medicine, Kasetsart University, Bangkok, 10900, Thailand
| | - Utcharaporn Kamsrijai
- Research Center for Neuroscience, Institute of Molecular Biosciences, Mahidol University, Salaya, Nakon Pathom, 73170, Thailand
| | - Kwankanit Sae-Ung
- Innovative Learning Center, Srinakharinwirot University, Bangkok, 10110, Thailand
| | - Sujira Mukda
- Research Center for Neuroscience, Institute of Molecular Biosciences, Mahidol University, Salaya, Nakon Pathom, 73170, Thailand
| | - Piyarat Govitrapong
- Research Center for Neuroscience, Institute of Molecular Biosciences, Mahidol University, Salaya, Nakon Pathom, 73170, Thailand; Center for Neuroscience and Department of Pharmacology, Faculty of Science, Mahidol University, Bangkok, 10400, Thailand.
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Pramong R, Wongchitrat P, Govitrapong P, Phansuwan-Pujito P. Development of Clock Genes Expression in Rat Hippocampus. J Med Assoc Thai 2015; 98 Suppl 9:S123-S129. [PMID: 26817220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
BACKGROUND The circadian rhythms in the suprachiasmatic nucleus (SCN), a central clock, are generated by autoregulatory network composed ofclock genes that encode transcriptionalfactors. There is a gradual development ofclock gene expression in the SCN during ontogenesis. Moreover clock genes are expressed in the adult hippocampus with circadian fashion. OBJECTIVE It is of interest to examine daily profiles ofthe clock gene mRNA and protein expressions in rat hippocampus during development. MATERIAL AND METHOD Daily profiles ofthree clock genes (Per1, Per2, and Bmal1) mRNA, and their protein expressions were analyzed in the rat hippocampus ofpups at postnatal (P) day 4 and 8 (P4 and P8), pre-weaning stage (P16), early pubertal stage (P32), and adult (P60) by real-time PCR and immunohistochemistry. RESULTS The entire studied clock gene mRNAs and proteins did not exhibit circadian rhythm in early postnatal P4-P16. Rhythmic expression of Per1 and Per2 mRNA started at P32, whereas Bmal1 began at adult. However, their proteins showed circadian expression together at adult. CONCLUSION The present study suggests that rat hippocampal molecular clock works gradually develop after birth and slower than that in the central clock SCN. It was possible that ontogenetic development of clock gene in hippocampus was waitingfor central clocksynchronization.
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Jenwitheesuk A, Nopparat C, Mukda S, Wongchitrat P, Govitrapong P. Melatonin regulates aging and neurodegeneration through energy metabolism, epigenetics, autophagy and circadian rhythm pathways. Int J Mol Sci 2014; 15:16848-84. [PMID: 25247581 PMCID: PMC4200827 DOI: 10.3390/ijms150916848] [Citation(s) in RCA: 113] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Revised: 09/03/2014] [Accepted: 09/12/2014] [Indexed: 12/19/2022] Open
Abstract
Brain aging is linked to certain types of neurodegenerative diseases and identifying new therapeutic targets has become critical. Melatonin, a pineal hormone, associates with molecules and signaling pathways that sense and influence energy metabolism, autophagy, and circadian rhythms, including insulin-like growth factor 1 (IGF-1), Forkhead box O (FoxOs), sirtuins and mammalian target of rapamycin (mTOR) signaling pathways. This review summarizes the current understanding of how melatonin, together with molecular, cellular and systemic energy metabolisms, regulates epigenetic processes in the neurons. This information will lead to a greater understanding of molecular epigenetic aging of the brain and anti-aging mechanisms to increase lifespan under healthy conditions.
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Affiliation(s)
- Anorut Jenwitheesuk
- Research Center for Neuroscience, Institute of Molecular Biosciences, Mahidol University, Salaya, Nakornpathom 73170, Thailand.
| | - Chutikorn Nopparat
- Research Center for Neuroscience, Institute of Molecular Biosciences, Mahidol University, Salaya, Nakornpathom 73170, Thailand.
| | - Sujira Mukda
- Research Center for Neuroscience, Institute of Molecular Biosciences, Mahidol University, Salaya, Nakornpathom 73170, Thailand.
| | - Prapimpun Wongchitrat
- Center for Innovation Development and Technology Transfer, Faculty of Medical Technology, Mahidol University, Salaya, Nakornpathom 73170, Thailand.
| | - Piyarat Govitrapong
- Research Center for Neuroscience, Institute of Molecular Biosciences, Mahidol University, Salaya, Nakornpathom 73170, Thailand.
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Wongchitrat P, Mukda S, Phansuwan-Pujito P, Govitrapong P. Effect of amphetamine on the clock gene expression in rat striatum. Neurosci Lett 2013; 542:126-30. [PMID: 23518151 DOI: 10.1016/j.neulet.2013.03.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Revised: 03/06/2013] [Accepted: 03/11/2013] [Indexed: 11/17/2022]
Abstract
Drug addicts have severe disruptions in many physiological and behavioral rhythms, such as the sleep/wake cycle. Interestingly, amphetamine, a psychostimulant, is able to alter many circadian patterns, which are independent of the master biological clock located in the suprachiasmatic nucleus. To increase our understanding of the circadian regulation of amphetamine on clock gene expression, rats received subcutaneous injections of d-amphetamine and the clock gene mRNA levels were analyzed using real-time PCR to obtain a daily profile. In the striatum, acute injection of d-amphetamine did not alter Period (Per)1, Per2 and Reverse erythroblastosis virus α (Rev-erbα) expressions. Chronic administration shifted the phase of Per1 and Per2 expressions from a nocturnal to diurnal pattern and advance shifted the peak of Rev-erbα in d-amphetamine-treated animals. In contrast, the rhythm of Brain and muscle Arnt-like protein-1 (Bmal1) was shifted from a diurnal to a nocturnal pattern by both acute and chronic treatments. These results demonstrated that chronic d-amphetamine treatment altered the expression of clock genes in the striatum. This might further influence the expression of related gene within the striatum and lead to behavioral and physiological changes which are associated to drug addiction.
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Affiliation(s)
- Prapimpun Wongchitrat
- Center for Innovation Development and Technology Transfer, Faculty of Medical Technology, Mahidol University, Salaya, Nakornpathom, Thailand
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Wongchitrat P, Govitrapong P, Phansuwan-Pujito P. The expression of Per1 and Aa-nat genes in the pineal gland of postnatal rats. J Med Assoc Thai 2012; 95 Suppl 12:S69-S75. [PMID: 23513468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
BACKGROUND The circadian rhythm of melatonin synthesis is controlled by the master clock, suprachiasmatic nucleus (SCN). The level of melatonin changes throughout the aging process. The SCN's rhythm is driven by autoregulatory feedback loop composed of a set of clock genes families and their corresponding proteins. The Period (Per1), one of clock gene develops gradually during postnatal ontogenesis in the rat SCN and is also expressed in the pineal gland. OBJECTIVE It is of interest to study the relationship between the postnatal development of Per1 and Aa-nat, genes that produce the rate-limiting enzyme in melatonin synthesis, in the pineal. MATERIAL AND METHOD Daily profiles of mRNA expression of Per1 and Aa-nat were analyzed in the pineal gland of pups at postnatal ages 4 (P4), P8, P16 and P32, at puberty age of 6 weeks; and in 8 week-old adult rats by real-time PCR. RESULTS As early as P4, Per1 and Aa-nat mRNAs were expressed and existed at relatively high levels during the nighttime. They gradually increased until puberty and decreased at 8 weeks of age. Additionally, the nocturnal changes of Per1 and Aa-nat mRNA levels in the rat pineal gland from P4 to adults were strongly correlated at r = 0.97 (p < 0.01). CONCLUSION The present data indicate that there is a close relationship between the expression pattern of Per1 and that of melatonin synthesis during the development of postnatal rats.
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Affiliation(s)
- Prapimpun Wongchitrat
- Department of Anatomy, Faculty of Medicine, Srinakharinwirot University, Bangkok, Thailand
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Wongchitrat P, Felder-Schmittbuhl MP, Govitrapong P, Phansuwan-Pujito P, Simonneaux V. A noradrenergic sensitive endogenous clock is present in the rat pineal gland. Neuroendocrinology 2011; 94:75-83. [PMID: 21525730 DOI: 10.1159/000327430] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2010] [Accepted: 03/13/2011] [Indexed: 11/19/2022]
Abstract
The aim of this study was to examine the occurrence of endogenous oscillations of Per1, Per2, Bmal1 and Rev-erbα genes in rat pineal explants and to investigate their regulation by adrenergic ligands. Our results show a significant and sustained rhythm of Per2,Bmal1 and Rev-erbα gene expression for up to 48 h in cultured pineal gland with a pattern similar to that observed in vivo. By contrast, the rhythms of Per1 and Aa-nat, the rate-limiting enzyme for melatonin synthesis, were strongly attenuated after 24 h in culture. Addition of the exogenous adrenergic agonist isoproterenol on cultured pineal glands induced a short-term increase in mRNA levels of Per1 and Aa-nat, but not those of Per2,Bmal1 and Rev-erbα. This study demonstrates that the rat pineal gland hosts a circadian oscillator as evidenced by the sustained, noradrenergic-independent, endogenous oscillations of Per2, Bmal1 and Rev-erbα mRNA levels in cultured tissues. Only expression of Per1 was stimulated by adrenergic ligands suggesting that, in vivo, the adrenergic input could synchronize the pineal clock by acting selectively on Per1.
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Wongchitrat P, Felder-Schmittbuhl MP, Phansuwan-Pujito P, Pévet P, Simonneaux V. Endogenous rhythmicity of Bmal1 and Rev-erb alpha in the hamster pineal gland is not driven by norepinephrine. Eur J Neurosci 2009; 29:2009-16. [PMID: 19453634 DOI: 10.1111/j.1460-9568.2009.06742.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Pineal melatonin is synthesized with daily and seasonal rhythms following the hypothalamic clock-driven release of norepinephrine (NE). The pineal gland of rats and mice, like the biological clock, expresses a number of clock genes. However, the role of pineal clock elements in pineal physiology is still unknown. We examined the expression and regulation of several clock genes (Per1, Cry2, Bmal1 and Rev-erb alpha) under different lighting conditions or following adrenergic treatments in the Syrian hamster, a seasonal rodent. We found that Per1 and Cry2 genes were similarly regulated by the nocturnal release of NE: levels of Per1 and Cry2 mRNA displayed a nocturnal increase that was maintained after 2 days in constant darkness (DD) but abolished after 2 days under constant light (LL), a condition that suppresses endogenous NE release, or after an early night administration of the adrenergic antagonist propranolol. In contrast, Bmal1 and Rev-erb alpha exhibited a different pattern of expression and regulation. mRNA levels of both clock genes displayed a marked daily variation, maintained in DD, with higher values at midday for Bmal1 and at day/night transition for Rev-erb alpha. Remarkably, the daily variation of both Bmal1 and Rev-erb alpha mRNA was maintained in LL conditions and was not affected by propranolol. This study confirms the daily regulation of Per1 and Cry2 gene expression by NE in the pineal gland of rodents and shows for the first time that a second set of clock genes, Bmal1 and Rev-erb alpha are expressed with a circadian rhythm independent of the hypothalamic clock-driven noradrenergic signal.
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Affiliation(s)
- Prapimpun Wongchitrat
- Département de Neurobiologie des Rythmes, Institut des Neurosciences Cellulaires et Intégratives, UPR CNRS 3212, Université de Strasbourg, 5 rue Blaise Pascal, 67084 Strasbourg Cedex, France
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