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Murack M, Smith KB, Traynor OH, Pirwani AF, Gostlin SK, Mohamed T, Tata DA, Messier C, Ismail N. Environmental enrichment alters LPS-induced changes in BDNF and PSD-95 expressions during puberty. Brain Res 2023; 1806:148283. [PMID: 36801452 DOI: 10.1016/j.brainres.2023.148283] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 02/09/2023] [Accepted: 02/12/2023] [Indexed: 02/21/2023]
Abstract
Puberty is a critical period of cortical reorganization and increased synaptogenesis. Healthy cortical reorganization and synaptic growth require sufficient environmental stimuli and minimalized stress exposure during pubertal development. Exposure to impoverished environments or immune challenges impact cortical reorganization and reduce the expression of proteins associated with neuronal plasticity (BDNF) and synaptogenesis (PSD-95). Environmentally enriched (EE) housing includes improved social-, physical-, and cognitive stimulation. We hypothesized that enriched housing environment would mitigate pubertal stress-induced decreases in BDNF and PSD-95 expressions. Three-week-old male and female CD-1 mice (n = 10 per group) were housed for three weeks in either EE, social or deprived housing conditions. At 6 weeks of age, mice were treated with either lipopolysaccharide (LPS) or saline eight hours prior to tissue collection. Male and female EE mice displayed greater BDNF and PSD-95 expressions in the medial prefrontal cortex and hippocampus compared to socially housed and deprived housed mice. LPS treatment decreased BDNF expression in all the brain regions examined in EE mice, except for the CA3 region of the hippocampus, where EE housing successfully mitigated the pubertal LPS-induced decrease in BDNF expression. Interestingly, LPS-treated mice housed in deprived conditions displayed unexpected increases in BDNF and PSD-95 expressions throughout the medial prefrontal cortex and hippocampus. Both enriched and deprived housing conditions moderate how an immune challenge influences BDNF and PSD-95 expressions in a region-specific manner. These findings also emphasize the vulnerability of brain plasticity during puberty to various environmental factors.
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Affiliation(s)
- Michael Murack
- NISE Laboratory, School of Psychology, University of Ottawa, 136 Jean-Jacques Lussier Ottawa, Ontario K1N 6N5, Canada
| | - Kevin B Smith
- NISE Laboratory, School of Psychology, University of Ottawa, 136 Jean-Jacques Lussier Ottawa, Ontario K1N 6N5, Canada
| | - Olivia H Traynor
- NISE Laboratory, School of Psychology, University of Ottawa, 136 Jean-Jacques Lussier Ottawa, Ontario K1N 6N5, Canada
| | - Atiqa F Pirwani
- NISE Laboratory, School of Psychology, University of Ottawa, 136 Jean-Jacques Lussier Ottawa, Ontario K1N 6N5, Canada
| | - Sarah K Gostlin
- Department of Psychology, McGill University, 2001 Av. McGill College Montreal, Quebec H3A 1G1, Canada
| | - Taha Mohamed
- NISE Laboratory, School of Psychology, University of Ottawa, 136 Jean-Jacques Lussier Ottawa, Ontario K1N 6N5, Canada
| | - Despoina A Tata
- Laboratory of Cognitive Neuroscience, School of Psychology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Claude Messier
- NISE Laboratory, School of Psychology, University of Ottawa, 136 Jean-Jacques Lussier Ottawa, Ontario K1N 6N5, Canada; University of Ottawa Brain and Mind Research Institute, University of Ottawa, 136 Jean-Jacques Lussier Ottawa, Ontario K1N 6N5, Canada
| | - Nafissa Ismail
- NISE Laboratory, School of Psychology, University of Ottawa, 136 Jean-Jacques Lussier Ottawa, Ontario K1N 6N5, Canada; University of Ottawa Brain and Mind Research Institute, University of Ottawa, 136 Jean-Jacques Lussier Ottawa, Ontario K1N 6N5, Canada.
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Kosiakova H, Berdyshev A, Dosenko V, Drevytska T, Herasymenko O, Hula N. The involvement of peroxisome proliferator-activated receptor gamma (PPARγ) in anti-inflammatory activity of N-stearoylethanolamine. Heliyon 2022; 8:e11336. [PMID: 36387464 PMCID: PMC9641209 DOI: 10.1016/j.heliyon.2022.e11336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 04/18/2022] [Accepted: 10/24/2022] [Indexed: 11/06/2022] Open
Abstract
Background N-stearoylethanolamine (NSE) is a bioactive lipid amine with a wide range of biological activities. Anti-inflammatory properties of NSE were previously confirmed on multiple animal models. However, the molecular mechanisms of anti-inflammatory action of NSE remain unclear. In the current study, we examined the involvement of nuclear receptor peroxisome proliferator-activated receptor gamma (PPARγ) in the NF-kB –dependent pathway of anti-inflammatory action of NSE using different methodological approaches. Methods Molecular modeling calculated the possibility of NSE binding PPAR. Ex vivo experiment, using selective agonist of PPARα/γ - LY-171883 and antagonist of PPARγ - GW9662, examined the role of PPARα/γ in the NSE’s effect on nuclear NF-kB translocation in LPS-activated rat peritoneal macrophages. Finally, the NSE’s action on mRNA level of PPARγ-dependent genes was studied in the liver of insulin-resistant rats. Results The results of molecular docking showed that NSE could bind to PPARγ and compete for the binding site with antagonist GW9662 and agonist LY-171883. These data was supported by in vitro study where pre-treatment with NSE prevented further LPS-induced NF-kB translocation into the nuclei of rat peritoneal macrophages. NSE treatment before GW9662 and LPS addition normalized the level of NF-kB translocation and IL-1β content. This finding confirmed a competitive binding of NSE with GW9662 for the ligand-binding domain of PPARγ. Additional in vivo study showed that NSE administration changed the mRNA expression of several PPARγ target genes, including SLC27A1 encoding fatty acid transport protein-1 and IL1RN - interleukin-1 receptor antagonist in insulin resistant rats. Conclusion NSE suppressed nuclear translocation of NF-κB in LPS-stimulated peritoneal macrophages via PPARγ and changed hepatic mRNA expression of PPARγ target genes (SLC27A1, IL1RN) in insulin resistant rats.
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Affiliation(s)
- H. Kosiakova
- Palladin Institute of Biochemistry, National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - A. Berdyshev
- Palladin Institute of Biochemistry, National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - V. Dosenko
- Bogomoletz Institute of Physiology, National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - T. Drevytska
- Bogomoletz Institute of Physiology, National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - O. Herasymenko
- Palladin Institute of Biochemistry, National Academy of Sciences of Ukraine, Kyiv, Ukraine
- Corresponding author.
| | - N. Hula
- Palladin Institute of Biochemistry, National Academy of Sciences of Ukraine, Kyiv, Ukraine
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Skok M, Deryabina O, Lykhmus O, Kalashnyk O, Uspenska K, Shuvalova N, Pokholenko I, Lushnikova I, Smozhanyk K, Skibo G, Kordyum V. Mesenchymal stem cell application for treatment of neuroinflammation-induced cognitive impairment in mice. Regen Med 2022; 17:533-546. [PMID: 35638401 DOI: 10.2217/rme-2021-0168] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Background: The present research has been undertaken to study the therapeutic potential of mesenchymal stem cells (MSCs) for the treatment of neuroinflammation-induced cognitive disorders. Methods: Either umbilical cord or adipose MSCs were injected into mice treated with lipopolysaccharide. The mice were studied in behavioral tests, and their brains were examined by means of immunohistochemistry, electron microscopy and sandwich ELISA. Results: MSCs, introduced either intravenously or intraperitoneally, restored episodic memory of mice disturbed by inflammation, normalized nAChR and Aβ1-42 levels and stimulated proliferation of neural progenitor cells in the brain. The effect of MSCs was observed for months, whereas that of MSC-conditioned medium was transient and stimulated an immune reaction. SDF-1α potentiated the effects of MSCs on the brain and memory. Conclusion: MSCs of different origins provide a long-term therapeutic effect in the treatment of neuroinflammation-induced episodic memory impairment.
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Affiliation(s)
- Maryna Skok
- Palladin Institute of Biochemistry, National Academy of Sciences of Ukraine, Kyiv, 01054, Ukraine
| | - Olena Deryabina
- State Institute of Genetic and Regenerative Medicine, National Academy of Medical Sciences of Ukraine, Kyiv, 04114, Ukraine.,Institute of Molecular Biology and Genetics, National Academy of Sciences of Ukraine, Kyiv, 03143, Ukraine
| | - Olena Lykhmus
- Palladin Institute of Biochemistry, National Academy of Sciences of Ukraine, Kyiv, 01054, Ukraine
| | - Olena Kalashnyk
- Palladin Institute of Biochemistry, National Academy of Sciences of Ukraine, Kyiv, 01054, Ukraine
| | - Kateryna Uspenska
- Palladin Institute of Biochemistry, National Academy of Sciences of Ukraine, Kyiv, 01054, Ukraine
| | - Nadia Shuvalova
- State Institute of Genetic and Regenerative Medicine, National Academy of Medical Sciences of Ukraine, Kyiv, 04114, Ukraine
| | - Ianina Pokholenko
- State Institute of Genetic and Regenerative Medicine, National Academy of Medical Sciences of Ukraine, Kyiv, 04114, Ukraine.,Institute of Molecular Biology and Genetics, National Academy of Sciences of Ukraine, Kyiv, 03143, Ukraine
| | - Iryna Lushnikova
- Bogomoletz Institute of Physiology, National Academy of Sciences of Ukraine, Kyiv, 01024, Ukraine
| | - Kateryna Smozhanyk
- Bogomoletz Institute of Physiology, National Academy of Sciences of Ukraine, Kyiv, 01024, Ukraine
| | - Galyna Skibo
- Bogomoletz Institute of Physiology, National Academy of Sciences of Ukraine, Kyiv, 01024, Ukraine
| | - Vitalii Kordyum
- State Institute of Genetic and Regenerative Medicine, National Academy of Medical Sciences of Ukraine, Kyiv, 04114, Ukraine.,Institute of Molecular Biology and Genetics, National Academy of Sciences of Ukraine, Kyiv, 03143, Ukraine
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Skok M. Universal nature of cholinergic regulation demonstrated with nicotinic acetylcholine receptors. BBA ADVANCES 2022; 2:100061. [PMID: 37082580 PMCID: PMC10074969 DOI: 10.1016/j.bbadva.2022.100061] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Accepted: 10/30/2022] [Indexed: 11/17/2022] Open
Abstract
Mammalian nicotinic acetylcholine receptors (nAChRs) were initially discovered as ligand-gated ion channels mediating fast synaptic transmission in the neuro-muscular junctions and autonomic ganglia. They were further found to be involved in a wide range of basic biological processes within the brain and in non-excitable tissues. The present review summarizes the data obtained in our laboratory during last two decades. Investigation of autonomic ganglia with the nAChR subunit-specific antibodies was followed by identification of nAChRs in B lymphocytes, discovery of mitochondrial nAChRs and their role in mitochondrial apoptosis pathway, and revealing the role of α7 nAChRs and α7-specific antibodies in neuroinflammation-related Alzheimer disease and COVID-19. The data obtained demonstrate the involvement of nAChRs in cell survival, proliferation, cell-to-cell communication and inflammatory reaction. Together with the ability of nAChRs to function in both ionotropic and metabotropic way, these data illustrate the universal nature of cholinergic regulation mediated by nAChRs.
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5
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Skok M. Mitochondrial nicotinic acetylcholine receptors: Mechanisms of functioning and biological significance. Int J Biochem Cell Biol 2021; 143:106138. [PMID: 34929396 DOI: 10.1016/j.biocel.2021.106138] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 12/09/2021] [Accepted: 12/15/2021] [Indexed: 10/19/2022]
Abstract
Nicotinic acetylcholine receptors mediate fast synaptic transmission in neuro-muscular junctions and autonomic ganglia and modulate survival, proliferation and neurotransmitter or cytokine release in the brain and non-excitable cells. The neuronal-type nicotinic acetylcholine receptors are expressed in the outer mitochondria membrane to regulate the release of pro-apoptotic substances like cytochrome c or reactive oxygen species. In the intracellular environment, nicotinic acetylcholine receptor signaling is ion-independent and triggers intramitochondrial kinases, similar to those activated by plasma membrane nicotinic acetylcholine receptors. The present review will describe the data obtained during the last five years including, in particular, post-translational glycosylation as a targeting signal to mitochondria, mechanisms of mitochondrial nicotinic acetylcholine receptor signaling studied with subtype-specific agonists, antagonists, positive allosteric modulators and knockout mice lacking certain nicotinic acetylcholine receptor subunits, interaction of mitochondrial nicotinic acetylcholine receptors with Bcl-2 family proteins and their involvement in important pathologies like neuroinflammation, liver damage and SARS-CoV-2 infection.
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Affiliation(s)
- Maryna Skok
- Palladin Institute of Biochemistry, 9, Leontovycha str., 01054 Kyiv, Ukraine.
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6
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Skok M. Mesenchymal stem cells as a potential therapeutic tool to cure cognitive impairment caused by neuroinflammation. World J Stem Cells 2021; 13:1072-1083. [PMID: 34567426 PMCID: PMC8422935 DOI: 10.4252/wjsc.v13.i8.1072] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 04/28/2021] [Accepted: 07/29/2021] [Indexed: 02/06/2023] Open
Abstract
An established contribution of neuroinflammation to multiple brain pathologies has raised the requirement for therapeutic strategies to overcome it in order to prevent age- and disease-dependent cognitive decline. Mesenchymal stem cells (MSCs) produce multiple growth and neurotrophic factors and seem to evade immune rejection due to low expression of major histocompatibility complex class I molecules. Therefore, MSCs are widely used in experiments and clinical trials of regenerative medicine. This review summarizes recent data concerning the optimization of MSC use for therapeutic purposes with the emphasis on the achievements of the last 2 years. Specific attention is paid to extracellular vesicles secreted by MSCs and to the role of α7 nicotinic acetylcholine receptors. The reviewed data demonstrate that MSCs have a significant therapeutic potential in treating neuroinflammation-related cognitive disfunctions including age-related neurodegenerative diseases. The novel data demonstrate that maximal therapeutic effect is being achieved when MSCs penetrate the brain and produce their stimulating factors in situ. Consequently, therapeutic application using MSCs should include measures to facilitate their homing to the brain, support the survival in the brain microenvironment, and stimulate the production of neurotrophic and anti-inflammatory factors. These measures include but are not limited to genetic modification of MSCs and pre-conditioning before transplantation.
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Affiliation(s)
- Maryna Skok
- Department of Molecular Immunology, Palladin Institute of Biochemistry NAS of Ukraine, Kyiv 01054, Ukraine
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7
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Rahman SMK, Uyama T, Hussain Z, Ueda N. Roles of Endocannabinoids and Endocannabinoid-like Molecules in Energy Homeostasis and Metabolic Regulation: A Nutritional Perspective. Annu Rev Nutr 2021; 41:177-202. [PMID: 34115519 DOI: 10.1146/annurev-nutr-043020-090216] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The endocannabinoid system is involved in signal transduction in mammals. It comprises principally G protein-coupled cannabinoid receptors and their endogenous agonists, called endocannabinoids, as well as the enzymes and transporters responsible for the metabolism of endocannabinoids. Two arachidonic acid-containing lipid molecules, arachidonoylethanolamide (anandamide) and 2-arachidonoylglycerol, function as endocannabinoids. N-acylethanolamines and monoacylglycerols, in which the arachidonic acid chain is replaced with a saturated or monounsaturated fatty acid, are not directly involved in the endocannabinoid system but exhibit agonistic activities for other receptors. These endocannabinoid-like molecules include palmitoylethanolamide, oleoylethanolamide (OEA), and 2-oleoylglycerol. Endocannabinoids stimulate feeding behavior and the anabolism of lipids and glucose, while OEA suppresses appetite. Both central and peripheral systems are included in these nutritional and metabolic contexts. Therefore, they have potential in the treatment and prevention of obesity. We outline the structure, metabolism, and biological activities of endocannabinoids and related molecules, and focus on their involvement in energy homeostasis and metabolic regulation. Expected final online publication date for the Annual Review of Nutrition, Volume 41 is September 2021. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.
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Affiliation(s)
- S M Khaledur Rahman
- Department of Biochemistry, Kagawa University School of Medicine, Miki, Kagawa 761-0793, Japan; , , .,Department of Genetic Engineering and Biotechnology, Jashore University of Science and Technology, Jashore-7408, Bangladesh
| | - Toru Uyama
- Department of Biochemistry, Kagawa University School of Medicine, Miki, Kagawa 761-0793, Japan; , ,
| | - Zahir Hussain
- Department of Biochemistry, Kagawa University School of Medicine, Miki, Kagawa 761-0793, Japan; , , .,Department of Pharmaceutical Sciences, School of Pharmacy, Center for Pharmacogenetics, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, USA;
| | - Natsuo Ueda
- Department of Biochemistry, Kagawa University School of Medicine, Miki, Kagawa 761-0793, Japan; , ,
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Luijerink LLM, Vivekanandarajah A, Waters KA, Machaalani R. The α7 and β2 nicotinic acetylcholine receptor subunits regulate apoptosis in the infant hippocampus, and in sudden infant death syndrome (SIDS). Apoptosis 2021; 25:574-589. [PMID: 32577853 DOI: 10.1007/s10495-020-01618-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Apoptosis is increased in the hippocampus of infants who died of sudden infant death syndrome (SIDS), yet it is not known via which mechanism this has occurred. Following existing support for a role of the α7 and β2 nicotinic acetylcholine receptor (nAChR) subunits in apoptotic regulation, we aimed to determine whether these subunits are altered in the SIDS hippocampus and if they are correlated with cell death markers of active caspase-3 (Casp-3) and TUNEL. Further analyses were run according to the presence of major SIDS risk factors related to hypoxia (bed-sharing and prone sleeping), infection (presence of an upper respiratory tract infection (URTI)), cigarette smoke exposure and gender. Immunohistochemical expression of the markers was studied in 4 regions of the hippocampus (Cornu Ammonis (CA)1, CA2, CA3, CA4) and subiculum amongst 52 infants (aged 1-7 months) who died suddenly and unexpectedly (SUDI) and for whom the cause of death was explained (eSUDI; n = 9), or not and characterised as SIDS I (n = 8) and SIDS II (n = 35) according to the San Diego diagnostic criteria. Results showed that SIDS II infants had widespread increases in TUNEL compared with eSUDI and SIDS I infants, as well as increased α7 and Casp-3 in CA2 compared to eSUDI infants, although these changes were predominant amongst infants who did not bed-share. Cigarette smoke exposure had minimal effects on the markers, while an URTI was associated with changes in all markers (after accounting for bed-sharing). Our findings support the role of nAChRs in regulating apoptosis in the SIDS hippocampus, and highlight the need for separate analysis according to risk factors.
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Affiliation(s)
- L L M Luijerink
- Sydney Medical School, Faculty of Medicine and Health, The University of Sydney, Medical Foundation Building K25, Sydney, NSW, 2006, Australia
| | - A Vivekanandarajah
- Sydney Medical School, Faculty of Medicine and Health, The University of Sydney, Medical Foundation Building K25, Sydney, NSW, 2006, Australia
| | - K A Waters
- Sydney Medical School, Faculty of Medicine and Health, The University of Sydney, Medical Foundation Building K25, Sydney, NSW, 2006, Australia.,The Children's Hospital at Westmead, Westmead, NSW, 2146, Australia
| | - R Machaalani
- Sydney Medical School, Faculty of Medicine and Health, The University of Sydney, Medical Foundation Building K25, Sydney, NSW, 2006, Australia. .,The Children's Hospital at Westmead, Westmead, NSW, 2146, Australia.
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Thompson KJ, Tobin AB. Crosstalk between the M 1 muscarinic acetylcholine receptor and the endocannabinoid system: A relevance for Alzheimer's disease? Cell Signal 2020; 70:109545. [PMID: 31978506 PMCID: PMC7184673 DOI: 10.1016/j.cellsig.2020.109545] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 01/19/2020] [Accepted: 01/20/2020] [Indexed: 12/16/2022]
Abstract
Alzheimer's disease (AD) is a neurodegenerative disorder which accounts for 60-70% of the 50 million worldwide cases of dementia and is characterised by cognitive impairments, many of which have long been associated with dysfunction of the cholinergic system. Although the M1 muscarinic acetylcholine receptor (mAChR) is considered a promising drug target for AD, ligands targeting this receptor have so far been unsuccessful in clinical trials. As modulatory receptors to cholinergic transmission, the endocannabinoid system may be a promising drug target to allow fine tuning of the cholinergic system. Furthermore, disease-related changes have been found in the endocannabinoid system during AD progression and indeed targeting the endocannabinoid system at specific disease stages alleviates cognitive symptoms in numerous mouse models of AD. Here we review the role of the endocannabinoid system in AD, and its crosstalk with mAChRs as a potential drug target for cholinergic dysfunction.
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Affiliation(s)
- Karen J Thompson
- Centre for Translational Pharmacology, Institute of Molecular Cell and Systems Biology, Davidson Building, University of Glasgow, Glasgow G12 8QQ, UK.
| | - Andrew B Tobin
- Centre for Translational Pharmacology, Institute of Molecular Cell and Systems Biology, Davidson Building, University of Glasgow, Glasgow G12 8QQ, UK
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10
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Lykhmus O, Kalashnyk O, Uspenska K, Horid’ko T, Kosyakova H, Komisarenko S, Skok M. Different Effects of Nicotine and N-Stearoyl-ethanolamine on Episodic Memory and Brain Mitochondria of α7 Nicotinic Acetylcholine Receptor Knockout Mice. Biomolecules 2020; 10:E226. [PMID: 32028688 PMCID: PMC7072576 DOI: 10.3390/biom10020226] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 01/08/2020] [Accepted: 01/29/2020] [Indexed: 12/12/2022] Open
Abstract
Nicotinic acetylcholine receptors of α7 subtype (α7 nAChRs) are involved in regulating neuroinflammation and cognitive functions. Correspondingly, α7-/- mice demonstrate pro-inflammatory phenotype and impaired episodic memory. In addition, nAChRs expressed in mitochondria regulate the release of pro-apoptotic factors like cytochrome c. Here we studied whether the cognitive deficiency of α7-/- mice can be cured by oral consumption of either nicotine or N-stearoylethanolamine (NSE), a lipid possessing anti-inflammatory, cannabimimetic and membrane-stabilizing activity. Mice were examined in Novel Object Recognition behavioral test, their blood, brains and brain mitochondria were tested for the levels of interleukin-6, various nAChR subtypes and cytochrome c released by ELISA. The data presented demonstrate that both substances stimulated the raise of interleukin-6 in the blood and improved episodic memory of α7-/- mice. However, NSE improved, while nicotine worsened the brain mitochondria sustainability to apoptogenic stimuli, as shown by either decreased or increased amounts of cytochrome c released. Both nicotine and NSE up-regulated α4β2 nAChRs in the brain; NSE up-regulated, while nicotine down-regulated α9-containing nAChRs in the brain mitochondria. It is concluded that the level of alternative nAChR subtypes in the brain is critically important for memory and mitochondria sustainability in the absence of α7 nAChRs.
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Affiliation(s)
| | | | | | | | | | | | - Maryna Skok
- Palladin Institute of Biochemistry, 01030 Kyiv, Ukraine; (O.L.); (O.K.); (K.U.); (T.H.); (H.K.); (S.K.)
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Wang YH, Lv HN, Cui QH, Tu PF, Jiang Y, Zeng KW. Isosibiricin inhibits microglial activation by targeting the dopamine D1/D2 receptor-dependent NLRP3/caspase-1 inflammasome pathway. Acta Pharmacol Sin 2020; 41:173-180. [PMID: 31506572 PMCID: PMC7471458 DOI: 10.1038/s41401-019-0296-7] [Citation(s) in RCA: 18] [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: 02/22/2019] [Accepted: 08/06/2019] [Indexed: 12/11/2022] Open
Abstract
Microglia-mediated neuroinflammation is a crucial risk factor for neurological disorders. Recently, dopamine receptors have been found to be involved in multiple immunopathological processes and considered as valuable therapeutic targets for inflammation-associated neurologic diseases. In this study we investigated the anti-neuroinflammation effect of isosibiricin, a natural coumarin compound isolated from medicinal plant Murraya exotica. We showed that isosibiricin (10-50 μM) dose-dependently inhibited lipopolysaccharide (LPS)-induced BV-2 microglia activation, evidenced by the decreased expression of inflammatory mediators, including nitrite oxide (NO), tumour necrosis factor-α (TNF-α), interleukin-6 (IL-6), interleukin-1β (IL-1β) and interleukin-18 (IL-18). By using transcriptomics coupled with bioinformatics analysis, we revealed that isosibiricin treatment mainly affect dopamine receptor signalling pathway. We further demonstrated that isosibiricin upregulated the expression of dopamine D1/2 receptors in LPS-treated BV-2 cells, resulting in inhibitory effect on nucleotide binding domain-like receptor protein 3 (NLRP3)/caspase-1 inflammasome pathway. Treatment with dopamine D1/2 receptor antagonists SCH 23390 (1 μM) or sultopride (1 μM) could reverse the inhibitory effects of isosibiricin on NLRP3 expression as well as the cleavages of caspase-1 and IL-1β. Collectively, this study demonstrates a promising therapeutic strategy for neuroinflammation by targeting dopamine D1/2 receptors.
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Affiliation(s)
- Yan-Hang Wang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Hai-Ning Lv
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Qing-Hua Cui
- School of Basic Medical Sciences, Peking University Health Science Center, Beijing, 100191, China
| | - Peng-Fei Tu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China
| | - Yong Jiang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China.
| | - Ke-Wu Zeng
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China.
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Herbal Formula Fo Shou San Attenuates Alzheimer's Disease-Related Pathologies via the Gut-Liver-Brain Axis in APP/PS1 Mouse Model of Alzheimer's Disease. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2019; 2019:8302950. [PMID: 31316576 PMCID: PMC6601474 DOI: 10.1155/2019/8302950] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Accepted: 05/20/2019] [Indexed: 02/07/2023]
Abstract
Fo Shou San (FSS) is an ancient paired-herb decoction, used in China to treat blood deficiency, blood stasis, stroke, and ischemic cerebral vascular disease for about one thousand years. The mechanisms associated with these properties, however, are not completely understood. Gut bacteria, gut bacterial lipopolysaccharides (LPS), alkaline phosphatase (AP), and lipid peroxidation are common biochemical signaling that takes place on gut-liver-brain axis. Growing evidences have revealed that gut bacterial lipopolysaccharides (LPS) enter the systemic circulation via the portal vein, and finally entering the brain tissue is an important cause of inflammatory degeneration of Alzheimer's disease (AD). Alkaline phosphatase (AP) dephosphorylates LPS forming a nontoxic LPS and reduces systemic inflammation via gut-liver-brain axis. In this study, to identify the differentially gut-liver-brain axis among APP/PS1 mice, FSS-treated APP/PS1 mice, and control mice, behavioral tests were performed to assess the cognitive ability and hematoxylin-eosin staining was used to assess neuronal damage in the hippocampus; immunohistochemistry, western blotting, a quantitative chromogenic end-point Tachypleus amebocyte lysate (TAL) assay kit, Malondialdehyde (MDA) assay kit, AP Assay Kit, and real-time quantitative PCR (qPCR) were used to assess the level of LPS, MDA, AP, and gut bacteria. We found that FSS regulates gut-liver-brain axis to regulate AP and gut bacteria and attenuate the LPS-related systemic inflammation, oxidative stress (MDA), and thereby AD-related pathology in APP/PS1 mice. This is the first study to provide a reference for FSS-treated AD mice to aid in understanding the underlying mechanisms of FSS. FSS may also improve gastrointestinal tract barrier and blood-brain barrier and thus ameliorates the symptoms of AD; this is subject to our further study.
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Lykhmus O, Koval L, Voytenko L, Uspenska K, Komisarenko S, Deryabina O, Shuvalova N, Kordium V, Ustymenko A, Kyryk V, Skok M. Intravenously Injected Mesenchymal Stem Cells Penetrate the Brain and Treat Inflammation-Induced Brain Damage and Memory Impairment in Mice. Front Pharmacol 2019; 10:355. [PMID: 31057400 PMCID: PMC6479176 DOI: 10.3389/fphar.2019.00355] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 03/21/2019] [Indexed: 12/11/2022] Open
Abstract
Neuroinflammation is regarded as one of the pathogenic factors of Alzheimer disease (AD). Previously, we showed that mice regularly injected with bacterial lipopolysaccharide (LPS) possessed the AD-like symptoms like episodic memory decline, elevated amounts of amyloid beta (Aβ) peptide (1-42), and decreased levels of nicotinic acetylcholine receptors (nAChRs) in the brain. The use of mesenchymal stem cells (MSCs), which can differentiate into multiple cell types, including neurons, is an attractive idea of regenerative medicine, in particular, for neurodegenerative disorders like AD. In the present study, we aimed to investigate whether pathogenic effect of LPS on the brain and behavior of mice can be prevented or treated by injection of MSCs or MSC-produced soluble factors. Fluorescently-labeled MSCs, injected intravenously, were found in the brain blood vessels of LPS-treated mice. Mice co-injected with LPS and MSCs did not demonstrate episodic memory impairment, Aβ (1-42) accumulation, and nAChR decrease in the brain and brain mitochondria. Their mitochondria released less cytochrome c under the effect of Ca2+ compared to mitochondria of LPS-only-treated mice. Moreover, MSCs could reverse the pathogenic symptoms developed 3 weeks after LPS injection. Cultured MSCs produced IL-6 in response to LPS and MSCs effect in vivo was accompanied by additional stimulation of both micro- and macroglia. Xenogeneic (human) MSCs were almost as efficient as allogeneic (mouse) ones and regular injections of human MSC-conditioned medium also produced positive effect. These data allow suggesting MSCs as a potential therapeutic tool to cure neuroinflammation-related cognitive pathology.
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Affiliation(s)
- Olena Lykhmus
- Laboratory of Cell Receptors Immunology, Palladin Institute of Biochemistry NAS, Kyiv, Ukraine
| | - Lyudmyla Koval
- Laboratory of Cell Receptors Immunology, Palladin Institute of Biochemistry NAS, Kyiv, Ukraine
| | - Larysa Voytenko
- Laboratory of Cell Receptors Immunology, Palladin Institute of Biochemistry NAS, Kyiv, Ukraine
| | - Kateryna Uspenska
- Laboratory of Cell Receptors Immunology, Palladin Institute of Biochemistry NAS, Kyiv, Ukraine
| | - Serhiy Komisarenko
- Laboratory of Cell Receptors Immunology, Palladin Institute of Biochemistry NAS, Kyiv, Ukraine
| | - Olena Deryabina
- Department of Gene Technologies, State Institute of Genetic and Regenerative Medicine NAMS, Kyiv, Ukraine
| | - Nadia Shuvalova
- Department of Gene Technologies, State Institute of Genetic and Regenerative Medicine NAMS, Kyiv, Ukraine
| | - Vitalii Kordium
- Department of Gene Technologies, State Institute of Genetic and Regenerative Medicine NAMS, Kyiv, Ukraine.,Department of Cell Regulatory Mechanisms, Institute of Molecular Biology and Genetics NAS, Kyiv, Ukraine
| | - Alina Ustymenko
- Department of Gene Technologies, State Institute of Genetic and Regenerative Medicine NAMS, Kyiv, Ukraine
| | - Vitalii Kyryk
- Department of Gene Technologies, State Institute of Genetic and Regenerative Medicine NAMS, Kyiv, Ukraine
| | - Maryna Skok
- Laboratory of Cell Receptors Immunology, Palladin Institute of Biochemistry NAS, Kyiv, Ukraine
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14
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Sadraie S, Kiasalari Z, Razavian M, Azimi S, Sedighnejad L, Afshin-Majd S, Baluchnejadmojarad T, Roghani M. Berberine ameliorates lipopolysaccharide-induced learning and memory deficit in the rat: insights into underlying molecular mechanisms. Metab Brain Dis 2019; 34:245-255. [PMID: 30456649 DOI: 10.1007/s11011-018-0349-5] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 11/15/2018] [Indexed: 12/20/2022]
Abstract
Systemic lipopolysaccharide (LPS) triggers neuroinflammation with consequent development of behavioral and cognitive deficits. Neuroinflammation plays a crucial role in the pathogenesis of neurodegenerative disorders including Alzheimer's disease (AD). Berberine is an isoquinoline alkaloid in Berberis genus with antioxidant and anti-inflammatory property and protective effects in neurodegenerative disorders. In this research, beneficial effect of this alkaloid against LPS-induced cognitive decline was assessed in the adult male rats. LPS was intraperitoneally administered at a dose of 1 mg/kg to induce neuroinflammation and berberine was given via gavage at doses of 10 or 50 mg/kg, one h after LPS, for 7 days. Treatment of LPS group with berberine at a dose of 50 mg/kg (but not at a dose of 10 mg/kg) improved spatial recognition memory in Y maze, performance in novel object recognition task (NORT), and prevented learning and memory dysfunction in passive avoidance tasks. Furthermore, berberine lowered hippocampal activity of acetylcholinesterase (AChE), malondialdehyde (MDA), protein carbonyl, activity of caspase 3, and DNA fragmentation and improved antioxidant capacity through enhancing glutathione peroxidase (GPx), superoxide dismutase (SOD), catalase, and glutathione (GSH). Besides, berberine attenuated inflammation-related indices, as was evident by lower levels of nuclear factor-kappa B (NF-κB), toll-like receptor 4 (TLR4), tumor necrosis factor α (TNFα), and interleukin 6 (IL-6). Berberine also appropriately restored hippocampal 3-nitrotyrosine (3-NT), cyclooxygenase 2 (Cox 2), glial fibrillary acidic protein (GFAP), sirtuin 1, and mitogen-activated protein kinase (p38 MAPK) with no significant alteration of brain-derived neurotrophic factor (BDNF). In summary, berberine could partially ameliorate LPS-induced cognitive deficits via partial suppression of apoptotic cascade, neuroinflammation, oxido-nitrosative stress, AChE, MAPK, and restoration of sirtuin 1.
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Affiliation(s)
| | - Zahra Kiasalari
- Neurophysiology Research Center, Shahed University, Tehran, Iran
| | | | - Shekoofe Azimi
- Department of Physiology, School of Medicine, Shahed University, Tehran, Iran
| | - Ladan Sedighnejad
- Department of Physiology, School of Medicine, Shahed University, Tehran, Iran
| | - Siamak Afshin-Majd
- Neurophysiology Research Center, Shahed University, Tehran, Iran
- Department of Neurology, School of Medicine, Shahed University, Tehran, Iran
| | | | - Mehrdad Roghani
- Neurophysiology Research Center, Shahed University, Tehran, Iran.
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15
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Zhang XY, Xu ZP, Wang W, Cao JB, Fu Q, Zhao WX, Li Y, Huo XL, Zhang LM, Li YF, Mi WD. Vitamin C alleviates LPS-induced cognitive impairment in mice by suppressing neuroinflammation and oxidative stress. Int Immunopharmacol 2018; 65:438-447. [DOI: 10.1016/j.intimp.2018.10.020] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 10/08/2018] [Accepted: 10/12/2018] [Indexed: 02/08/2023]
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16
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Horid’ko TM, Kosiakova HV, Berdyshev AG. Preventive effect of N-stearoylethanolamine on memory disorders, blood and brain biochemical parameters in rats with experimental scopolamine-induced cognitive impairment. UKRAINIAN BIOCHEMICAL JOURNAL 2018. [DOI: 10.15407/ubj90.06.097] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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