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Timoshenko RV, Gorelkin PV, Vaneev AN, Krasnovskaya OO, Akasov RA, Garanina AS, Khochenkov DA, Iakimova TM, Klyachko NL, Abakumova TO, Shashkovskaya VS, Chaprov KD, Makarov AA, Mitkevich VA, Takahashi Y, Edwards CRW, Korchev YE, Erofeev AS. Electrochemical Nanopipette Sensor for In Vitro/In Vivo Detection of Cu 2+ Ions. Anal Chem 2024; 96:127-136. [PMID: 38126724 DOI: 10.1021/acs.analchem.3c03337] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
In vitro/in vivo detection of copper ions is a challenging task but one which is important in the development of new approaches to the diagnosis and treatment of cancer and hereditary diseases such as Alzheimer's, Wilson's, etc. In this paper, we present a nanopipette sensor capable of measuring Cu2+ ions with a linear range from 0.1 to 10 μM in vitro and in vivo. Using the gold-modified nanopipette sensor with a copper chelating ligand, we evaluated the accumulation ability of the liposomal form of an anticancer Cu-containing complex at three levels of biological organization. First, we detected Cu2+ ions in a single cell model of human breast adenocarcinoma MCF-7 and in murine melanoma B16 cells. The insertion of the nanoelectrode did not result in leakage of the cell membrane. We then evaluated the distribution of the Cu-complex in MCF-7 tumor spheroids and found that the diffusion-limited accumulation was a function of the depth, typical for 3D culture. Finally, we demonstrated the use of the sensor for Cu2+ ion detection in the brain of an APP/PS1 transgenic mouse model of Alzheimer's disease and tumor-bearing mice in response to injection (2 mg kg-1) of the liposomal form of the anticancer Cu-containing complex. Enhanced stability and selectivity, as well as distinct copper oxidation peaks, confirmed that the developed sensor is a promising tool for testing various types of biological systems. In summary, this research has demonstrated a minimally invasive electrochemical technique with high temporal resolution that can be used for the study of metabolism of copper or copper-based drugs in vitro and in vivo.
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Affiliation(s)
- Roman V Timoshenko
- National University of Science and Technology (MISIS), Moscow 119049, Russia
| | - Petr V Gorelkin
- National University of Science and Technology (MISIS), Moscow 119049, Russia
| | - Alexander N Vaneev
- National University of Science and Technology (MISIS), Moscow 119049, Russia
- Chemistry Department, Lomonosov Moscow State University, Moscow 119991, Russia
| | - Olga O Krasnovskaya
- National University of Science and Technology (MISIS), Moscow 119049, Russia
- Chemistry Department, Lomonosov Moscow State University, Moscow 119991, Russia
| | - Roman A Akasov
- Federal Scientific Research Center "Crystallography and Photonics" of the Russian Academy of Sciences, Moscow 119333, Russia
- Sechenov First Moscow State Medical University, Moscow 119991, Russia
| | | | - Dmitry A Khochenkov
- N.N. Blokhin National Medical Research Center of Oncology, Moscow 115478, Russia
- Togliatti State University, Togliatti 445020, Russia
| | - Tamara M Iakimova
- Chemistry Department, Lomonosov Moscow State University, Moscow 119991, Russia
| | - Natalia L Klyachko
- Chemistry Department, Lomonosov Moscow State University, Moscow 119991, Russia
| | | | | | - Kirill D Chaprov
- Institute of Physiologically Active Compounds at Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry of the Russian Academy of Sciences, Chernogolovka 142432, Russia
| | - Alexander A Makarov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow 119991, Russia
| | - Vladimir A Mitkevich
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow 119991, Russia
| | - Yasufumi Takahashi
- Department of Electronics, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
- Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kanazawa 920-1192, Japan
| | | | - Yuri E Korchev
- Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kanazawa 920-1192, Japan
- Department of Medicine, Imperial College London, London W120NN, U.K
| | - Alexander S Erofeev
- National University of Science and Technology (MISIS), Moscow 119049, Russia
- Chemistry Department, Lomonosov Moscow State University, Moscow 119991, Russia
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Lysikova EA, Kuzubova EV, Radchenko AI, Patrakhanov EA, Chaprov KD, Korokin MV, Deykin AV, Gudyrev OS, Pokrovskii MV. [APPswe/PS1dE9/Blg Transgenic Mouse Line for Modeling Cerebral Amyloid Angiopathy Associated with Alzheimer's Disease]. Mol Biol (Mosk) 2023; 57:85-94. [PMID: 36976741 DOI: 10.31857/s0026898423010081] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 07/30/2022] [Indexed: 03/29/2023]
Abstract
Alzheimer's disease (AD) is the most common proteinopathy, which is accompanied by a steady decrease in the patient's cognitive functions with a simultaneous accumulation of amyloid plaques in brain tissues. Amyloid plaques are extracellular aggregates of amyloid β (Aβ) and are associated with neuroinflammation and neurodegeneration. Unlike humans and all other mammals, rats and mice do not reproduce AD-like pathology because there are three amino acid substitutions in their Aβ. Amyloid plaques form in the brains of transgenic mice with overexpression of human Aβ, and such mice are therefore possible to use in biomedicine to model the key features of AD. The transgenic mouse line APPswe/PS1dE9 is widely used as an animal model to study the molecular mechanisms of AD. A study was made to characterize the APPswe/PS1dE9/Blg subline, which was obtained by crossing APPswe/PS1dE9 mice on a CH3 genetic background with C57Bl6/Chg mice. No difference in offspring's survival and fertility was observed in the subline compared to wild-type control mice. Histological analysis of the brain in the APPswe/PS1dE9/Blg line confirmed the main neuromorphological features of AD and showed that amyloid plaques progressively increase in number and size during aging. The APPswe/PS1dE9/Blg line was assumed to provide a convenient model for developing therapeutic strategies to slow down AD progression.
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Affiliation(s)
- E A Lysikova
- Institute of Physiologically Active Compounds, Russian Academy of Sciences, Chernogolovka, 142432 Russia
| | - E V Kuzubova
- Belgorod State University, Belgorod, 308015 Russia
| | | | | | - K D Chaprov
- Institute of Physiologically Active Compounds, Russian Academy of Sciences, Chernogolovka, 142432 Russia
- Belgorod State University, Belgorod, 308015 Russia
| | - M V Korokin
- Belgorod State University, Belgorod, 308015 Russia
| | - A V Deykin
- Belgorod State University, Belgorod, 308015 Russia
| | - O S Gudyrev
- Belgorod State University, Belgorod, 308015 Russia
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Upcott M, Chaprov KD, Buchman VL. Toward a Disease-Modifying Therapy of Alpha-Synucleinopathies: New Molecules and New Approaches Came into the Limelight. Molecules 2021; 26:molecules26237351. [PMID: 34885933 PMCID: PMC8658846 DOI: 10.3390/molecules26237351] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 11/19/2021] [Revised: 11/27/2021] [Accepted: 12/01/2021] [Indexed: 12/25/2022] Open
Abstract
The accumulation of the various products of alpha-synuclein aggregation has been associated with the etiology and pathogenesis of several neurodegenerative conditions, including both familial and sporadic forms of Parkinson’s disease (PD) and dementia with Lewy bodies (DLB). It is now well established that the aggregation and spread of alpha-synuclein aggregation pathology activate numerous pathogenic mechanisms that contribute to neurodegeneration and, ultimately, to disease progression. Therefore, the development of a safe and effective disease-modifying therapy that limits or prevents the accumulation of the toxic intermediate products of alpha-synuclein aggregation and the spread of alpha-synuclein aggregation pathology could provide significant positive clinical outcomes in PD/DLB cohorts. It has been suggested that this goal can be achieved by reducing the intracellular and/or extracellular levels of monomeric and already aggregated alpha-synuclein. The principal aim of this review is to critically evaluate the potential of therapeutic strategies that target the post-transcriptional steps of alpha-synuclein production and immunotherapy-based approaches to alpha-synuclein degradation in PD/DLB patients. Strategies aimed at the downregulation of alpha-synuclein production are at an early preclinical stage of drug development and, although they have shown promise in animal models of alpha-synuclein aggregation, many limitations need to be resolved before in-human clinical trials can be seriously considered. In contrast, many strategies aimed at the degradation of alpha-synuclein using immunotherapeutic approaches are at a more advanced stage of development, with some in-human Phase II clinical trials currently in progress. Translational barriers for both strategies include the limitations of alpha-synuclein aggregation models, poor understanding of the therapeutic window for the alpha-synuclein knockdown, and variability in alpha-synuclein pathology across patient cohorts. Overcoming such barriers should be the main focus of further studies. However, it is already clear that these strategies do have the potential to achieve a disease-modifying effect in PD and DLB.
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Affiliation(s)
- Matthew Upcott
- School of Biosciences, Cardiff University, Museum Avenue, Cardiff CF10 3AX, UK;
| | - Kirill D. Chaprov
- Institute of Physiologically Active Compounds Russian Academy of Sciences (IPAC RAS), 1 Severniy Proezd, Chernogolovk, 142432 Moscow, Russia;
- Belgorod State National Research University, 85 Pobedy Street, 308015 Belgorod, Russia
| | - Vladimir L. Buchman
- School of Biosciences, Cardiff University, Museum Avenue, Cardiff CF10 3AX, UK;
- Institute of Physiologically Active Compounds Russian Academy of Sciences (IPAC RAS), 1 Severniy Proezd, Chernogolovk, 142432 Moscow, Russia;
- Belgorod State National Research University, 85 Pobedy Street, 308015 Belgorod, Russia
- Correspondence:
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Chaprov KD, Lysikova EA, Teterina EV, Buchman VL. Kinetics of alpha-synuclein depletion in three brain regions following conditional pan-neuronal inactivation of the encoding gene (Snca) by tamoxifen-induced Cre-recombination in adult mice. Transgenic Res 2021; 30:867-873. [PMID: 34590209 PMCID: PMC8580898 DOI: 10.1007/s11248-021-00286-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 05/06/2021] [Accepted: 09/14/2021] [Indexed: 11/26/2022]
Abstract
Conditional pan-neuronal inactivation of the Snca gene in 2-month old male and female mice causes dramatic decrease in the level of the encoded protein, alpha-synuclein, in three studied brain regions, namely cerebral cortex, midbrain and striatum, 12 weeks after the last injection of tamoxifen. Kinetics of alpha-synuclein depletion is different in these brain regions with a longer lag period in the cerebral cortex where this protein is normally most abundant. Our results suggest that efficient post-developmental pan-neuronal knockout of alpha-synuclein in adult, i.e. 5- to 6-month old, animals, could be achieved by tamoxifen treatment of 2-month old mice carrying loxP-flanked Snca gene and expressing inducible Cre-ERT2 recombinase under control of the promoter of neuron-specific enolase (NSE) gene.
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Affiliation(s)
- Kirill D Chaprov
- Institute of Physiologically Active Compounds Russian Academy of Sciences (IPAC RAS), 1 Severniy proezd, Chernogolovka, Moscow Region, Russian Federation, 142432
- School of Biosciences, Cardiff University, Museum Avenue, Cardiff, CF10 3AX, UK
| | - Ekaterina A Lysikova
- Institute of Physiologically Active Compounds Russian Academy of Sciences (IPAC RAS), 1 Severniy proezd, Chernogolovka, Moscow Region, Russian Federation, 142432
| | - Ekaterina V Teterina
- Institute of Physiologically Active Compounds Russian Academy of Sciences (IPAC RAS), 1 Severniy proezd, Chernogolovka, Moscow Region, Russian Federation, 142432
| | - Vladimir L Buchman
- Institute of Physiologically Active Compounds Russian Academy of Sciences (IPAC RAS), 1 Severniy proezd, Chernogolovka, Moscow Region, Russian Federation, 142432.
- School of Biosciences, Cardiff University, Museum Avenue, Cardiff, CF10 3AX, UK.
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Chaprov KD, Teterina EV, Roman AY, Ivanova TA, Goloborshcheva VV, Kucheryanu VG, Morozov SG, Lysikova EA, Lytkina OA, Koroleva IV, Popova NI, Antohin AI, Ovchinnikov RK, Kukharsky MS. [Comparative Analysis of MPTP Neurotoxicity in Mice with a Constitutive Knockout of the α-Synuclein Gene]. Mol Biol (Mosk) 2021; 55:152-163. [PMID: 33566034 DOI: 10.31857/s0026898421010031] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 08/30/2020] [Indexed: 11/24/2022]
Abstract
Aggregated forms of α-synuclein are core components of pathohistological inclusions known as Lewy bodies in substantia nigra (SN) neurons of patients with Parkinson's disease (PD). The role of α-synuclein in selective loss of SN dopaminergic neurons (DNs) in PD is studied in mice knocked out in the α-synuclein gene. The new mouse strain delta flox KO with a constitutive knockout of the α-synuclein gene models the end point of in vivo deletion of the α-synuclein gene in mice with a conditional knockout and has no foreign sequence in the modified genomic locus, thus differing from all other α-synuclein knockout mouse strains. The effect of the neurotoxin 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP), which is used to model PD, was compared between delta flox KO mice and mice of the well-known α-synuclein knockout strain AbKO. Subchronic MPTP administration, which models early PD, was found to reduce the dopamine content and to change the ratio of dopamine metabolites in the striatum to the same levels in delta flox KO, АbKO, and wild-type mice. Overt locomotor defects were not observed after MPTP treatment, but gait testing in a CatWalk XT (Noldus) system revealed identical gait deviations in mice of the two strains and control wild-type mice. Based on the findings, a similar mechanism of neurotoxic damage to DNs was assumed for delta flox KO and AbKO mice.
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Affiliation(s)
- K D Chaprov
- Institute of Physiologically Active Compounds, Russian Academy of Sciences, Chernogolovka, Moscow oblast, 142432 Russia.,
| | - E V Teterina
- Institute of Physiologically Active Compounds, Russian Academy of Sciences, Chernogolovka, Moscow oblast, 142432 Russia
| | - A Yu Roman
- Institute of Physiologically Active Compounds, Russian Academy of Sciences, Chernogolovka, Moscow oblast, 142432 Russia
| | - T A Ivanova
- Institute of Physiologically Active Compounds, Russian Academy of Sciences, Chernogolovka, Moscow oblast, 142432 Russia
| | - V V Goloborshcheva
- Institute of General Pathology and Pathophysiology, Moscow, 125315 Russia
| | - V G Kucheryanu
- Institute of General Pathology and Pathophysiology, Moscow, 125315 Russia
| | - S G Morozov
- Institute of General Pathology and Pathophysiology, Moscow, 125315 Russia
| | - E A Lysikova
- Institute of Physiologically Active Compounds, Russian Academy of Sciences, Chernogolovka, Moscow oblast, 142432 Russia
| | - O A Lytkina
- Institute of Physiologically Active Compounds, Russian Academy of Sciences, Chernogolovka, Moscow oblast, 142432 Russia
| | - I V Koroleva
- Institute of Physiologically Active Compounds, Russian Academy of Sciences, Chernogolovka, Moscow oblast, 142432 Russia
| | - N Ia Popova
- Pirogov Russian National Research Medical University, Moscow, 117997 Russia
| | - A I Antohin
- Pirogov Russian National Research Medical University, Moscow, 117997 Russia
| | - R K Ovchinnikov
- Institute of Physiologically Active Compounds, Russian Academy of Sciences, Chernogolovka, Moscow oblast, 142432 Russia.,Pirogov Russian National Research Medical University, Moscow, 117997 Russia
| | - M S Kukharsky
- Institute of Physiologically Active Compounds, Russian Academy of Sciences, Chernogolovka, Moscow oblast, 142432 Russia.,Pirogov Russian National Research Medical University, Moscow, 117997 Russia
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Chaprov KD, Goloborshcheva VV, Tarasova TV, Teterina EV, Korokin MV, Soldatov VO, Pokrovskiy MV, Kucheryanu VG, Morozov SG, Ovchinnikov RK. Increased Expression of the Multimerin-1 Gene in α-Synuclein Knokout Mice. Dokl Biol Sci 2020; 494:260-263. [PMID: 33083886 DOI: 10.1134/s0012496620050014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 06/25/2020] [Accepted: 06/25/2020] [Indexed: 12/20/2022]
Abstract
Multimerin-1 (Mmrn-1) is a soluble protein, also known as elastin microfibril interfacer 4 (EMILIN-4), found in platelets and in the endothelium of blood vessels. Its function and role in pathology are still not fully understood. Genetic modifications in alpha-synuclein gene (Snca) locus that mapped 160 Kb apart from Mmrn-1 in mouse genome, could weigh with regulatory elements of Mmrn-1 gene. We have studied the Mmrn-1 expression in brain cortex of three mouse lines with Snca knock-out: B6(Cg)-Sncatm1.2Vlb/J, B6;129-Sncatm1Sud/J, and B6;129X1-Sncatm1Rosl/J. The 35-fold increase for Mmrn-1 mRNA level have been found in B6;129X1-Sncatm1Rosl/J mice that carry in their genome foreign sequences including bacterial gene neo and a strong promoter of a mouse phosphoglycerate kinase (Pgk1) oriented towards Mmrn-1 gene. This effect on regulatory elements of Mmrn-1 gene as a result of modifications in Snca locus should be taken into consideration when using B6;129X1-Sncatm1Rosl/J line, that is widely applied for study of neurodegeneration mechanisms.
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Affiliation(s)
- K D Chaprov
- Institute of Physiologically Active Compounds, Russian Academy of Sciences, 142432, Chernogolovka, Moscow oblast, Russia. .,School of Biosciences, Cardiff University, Cardiff CF10 3AX, United Kingdom.
| | - V V Goloborshcheva
- School of Biosciences, Cardiff University, Cardiff CF10 3AX, United Kingdom.,Institute of General Pathology and Pathophysiology, 125315, Moscow, Russia
| | - T V Tarasova
- Institute of Physiologically Active Compounds, Russian Academy of Sciences, 142432, Chernogolovka, Moscow oblast, Russia.,School of Biosciences, Cardiff University, Cardiff CF10 3AX, United Kingdom
| | - E V Teterina
- Institute of Physiologically Active Compounds, Russian Academy of Sciences, 142432, Chernogolovka, Moscow oblast, Russia
| | - M V Korokin
- Research Institute of Living Systems Pharmacology, Belgorod National Research University, 308007, Belgorod, Russia
| | - V O Soldatov
- Research Institute of Living Systems Pharmacology, Belgorod National Research University, 308007, Belgorod, Russia
| | - M V Pokrovskiy
- Research Institute of Living Systems Pharmacology, Belgorod National Research University, 308007, Belgorod, Russia
| | - V G Kucheryanu
- Institute of General Pathology and Pathophysiology, 125315, Moscow, Russia
| | - S G Morozov
- Institute of General Pathology and Pathophysiology, 125315, Moscow, Russia
| | - R K Ovchinnikov
- Institute of Physiologically Active Compounds, Russian Academy of Sciences, 142432, Chernogolovka, Moscow oblast, Russia
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Ninkina N, Tarasova TV, Chaprov KD, Roman AY, Kukharsky MS, Kolik LG, Ovchinnikov R, Ustyugov AA, Durnev AD, Buchman VL. Alterations in the nigrostriatal system following conditional inactivation of α-synuclein in neurons of adult and aging mice. Neurobiol Aging 2020; 91:76-87. [PMID: 32224067 PMCID: PMC7242904 DOI: 10.1016/j.neurobiolaging.2020.02.026] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [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: 12/29/2019] [Revised: 02/11/2020] [Accepted: 02/24/2020] [Indexed: 01/05/2023]
Abstract
The etiology and pathogenesis of Parkinson's disease (PD) are tightly linked to the gain-of-function of α-synuclein. However, gradual accumulation of α-synuclein aggregates in dopaminergic neurons of substantia nigra pars compacta (SNpc) leads to the depletion of the functional pool of soluble α-synuclein, and therefore, creates loss-of-function conditions, particularly in presynaptic terminals of these neurons. Studies of how this late-onset depletion of a protein involved in many important steps of neurotransmission contributes to PD progression and particularly, to worsening the nigrostriatal pathology at late stages of the disease are limited and obtained data, are controversial. Recently, we produced a mouse line for conditional knockout of the gene encoding α-synuclein, and here we used its tamoxifen-inducible pan-neuronal inactivation to study consequences of the adult-onset (from the age of 6 months) and late-onset (from the age of 12 months) α-synuclein depletion to the nigrostriatal system. No significant changes of animal balance/coordination, the number of dopaminergic neurons in the SNpc and the content of dopamine and its metabolites in the striatum were observed after adult-onset α-synuclein depletion, but in aging (18-month-old) late-onset depleted mice we found a significant reduction of major dopamine metabolites without changes to the content of dopamine itself. Our data suggest that this might be caused, at least partially, by reduced expression of aldehyde dehydrogenase ALDH1a1 and could lead to the accumulation of toxic intermediates of dopamine catabolism. By extrapolating our findings to a potential clinical situation, we suggest that therapeutic downregulation of α-synuclein expression in PD patients is a generally safe option as it should not cause adverse side effects on the functionality of their nigrostriatal system. However, if started in aged patients, this type of therapy might trigger slight functional changes of the nigrostriatal system with potentially unwanted additive effect to already existing pathology.
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Affiliation(s)
- Natalia Ninkina
- School of Biosciences, Cardiff University, Cardiff, United Kingdom; Institute of Physiologically Active Compounds Russian Academy of Sciences (IPAC RAS), Moscow Region, Russian Federation.
| | - Tatiana V Tarasova
- School of Biosciences, Cardiff University, Cardiff, United Kingdom; Institute of Physiologically Active Compounds Russian Academy of Sciences (IPAC RAS), Moscow Region, Russian Federation
| | - Kirill D Chaprov
- School of Biosciences, Cardiff University, Cardiff, United Kingdom; Institute of Physiologically Active Compounds Russian Academy of Sciences (IPAC RAS), Moscow Region, Russian Federation
| | - Andrei Yu Roman
- School of Biosciences, Cardiff University, Cardiff, United Kingdom; Institute of Physiologically Active Compounds Russian Academy of Sciences (IPAC RAS), Moscow Region, Russian Federation
| | - Michail S Kukharsky
- Institute of Physiologically Active Compounds Russian Academy of Sciences (IPAC RAS), Moscow Region, Russian Federation; FSBI Research Zakusov Institute of Pharmacology (FSBI RZIP), Moscow, Russian Federation; Pirogov Russian National Research Medical University, Moscow, Russian Federation
| | - Larisa G Kolik
- FSBI Research Zakusov Institute of Pharmacology (FSBI RZIP), Moscow, Russian Federation
| | - Ruslan Ovchinnikov
- Institute of Physiologically Active Compounds Russian Academy of Sciences (IPAC RAS), Moscow Region, Russian Federation; Pirogov Russian National Research Medical University, Moscow, Russian Federation
| | - Aleksey A Ustyugov
- School of Biosciences, Cardiff University, Cardiff, United Kingdom; Institute of Physiologically Active Compounds Russian Academy of Sciences (IPAC RAS), Moscow Region, Russian Federation
| | - Andrey D Durnev
- FSBI Research Zakusov Institute of Pharmacology (FSBI RZIP), Moscow, Russian Federation
| | - Vladimir L Buchman
- School of Biosciences, Cardiff University, Cardiff, United Kingdom; Institute of Physiologically Active Compounds Russian Academy of Sciences (IPAC RAS), Moscow Region, Russian Federation.
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8
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Goloborshcheva VV, Chaprov KD, Teterina EV, Ovchinnikov R, Buchman VL. Reduced complement of dopaminergic neurons in the substantia nigra pars compacta of mice with a constitutive "low footprint" genetic knockout of alpha-synuclein. Mol Brain 2020; 13:75. [PMID: 32393371 PMCID: PMC7216632 DOI: 10.1186/s13041-020-00613-5] [Citation(s) in RCA: 4] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 04/28/2020] [Indexed: 12/22/2022] Open
Abstract
Previous studies of the alpha-synuclein null mutant mice on the C57Bl6 genetic background have revealed reduced number of dopaminergic neurons in their substantia nigra pars compacta (SNpc). However, the presence in genomes of the studied mouse lines of additional genetic modifications that affect expression of genes located in a close proximity to the alpha-synuclein-encoding Snca gene makes these data open to various interpretations. To unambiguously demonstrate that the absence of alpha-synuclein is the primary cause of the observed deficit of dopaminergic neurons, we employed a recently produced constituent alpha-synuclein knockout mouse line B6(Cg)-Sncatm1.2Vlb/J. The only modification introduced to the genome of these mice is a substitution of the first coding exon and adjusted short intronic fragments of the Snca gene by a single loxP site. We compared the number of dopaminergic neurons in the SNpc of this line, previously studied B6(Cg)-Sncatm1Rosl/J line and wild type littermate mice. A similar decrease was observed in both knockout lines when compared with wild type mice. In a recently published study we revealed no loss of dopaminergic neurons following conditional inactivation of the Snca gene in neurons of adult mice. Taken together, these results strongly suggest that alpha-synuclein is required for efficient survival or maturation of dopaminergic neurons in the developing SNpc but is dispensable for survival of mature SNpc dopaminergic neurons.
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Affiliation(s)
- Valeria V Goloborshcheva
- School of Biosciences, Cardiff University, Museum Avenue, Cardiff, CF10 3AX, UK.,Institute of Physiologically Active Compounds Russian Academy of Sciences (IPAC RAS), 1 Severniy proezd, Chernogolovka, Moscow Region, Russian Federation, 142432
| | - Kirill D Chaprov
- School of Biosciences, Cardiff University, Museum Avenue, Cardiff, CF10 3AX, UK.,Institute of Physiologically Active Compounds Russian Academy of Sciences (IPAC RAS), 1 Severniy proezd, Chernogolovka, Moscow Region, Russian Federation, 142432
| | - Ekaterina V Teterina
- Institute of Physiologically Active Compounds Russian Academy of Sciences (IPAC RAS), 1 Severniy proezd, Chernogolovka, Moscow Region, Russian Federation, 142432
| | - Ruslan Ovchinnikov
- Institute of Physiologically Active Compounds Russian Academy of Sciences (IPAC RAS), 1 Severniy proezd, Chernogolovka, Moscow Region, Russian Federation, 142432.,Pirogov Russian National Research Medical University, Ostrovitianov Str., 1, Moscow, Russian Federation, 117997
| | - Vladimir L Buchman
- School of Biosciences, Cardiff University, Museum Avenue, Cardiff, CF10 3AX, UK. .,Institute of Physiologically Active Compounds Russian Academy of Sciences (IPAC RAS), 1 Severniy proezd, Chernogolovka, Moscow Region, Russian Federation, 142432.
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Lysikova EA, Kukharsky MS, Chaprov KD, Vasilieva NA, Roman AY, Ovchinnikov RK, Deykin AV, Ninkina N, Buchman VL. Behavioural impairments in mice of a novel FUS transgenic line recapitulate features of frontotemporal lobar degeneration. Genes, Brain and Behavior 2019; 18:e12607. [DOI: 10.1111/gbb.12607] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2019] [Revised: 08/19/2019] [Accepted: 08/19/2019] [Indexed: 12/11/2022]
Affiliation(s)
- Ekaterina A. Lysikova
- School of BiosciencesCardiff University Cardiff UK
- Institute of Physiologically Active Compounds, Russian Academy of Sciences Chernogolovka Russian Federation
| | - Michail S. Kukharsky
- Institute of Physiologically Active Compounds, Russian Academy of Sciences Chernogolovka Russian Federation
| | - Kirill D. Chaprov
- School of BiosciencesCardiff University Cardiff UK
- Institute of Physiologically Active Compounds, Russian Academy of Sciences Chernogolovka Russian Federation
| | - Nataliia A. Vasilieva
- Institute of Physiologically Active Compounds, Russian Academy of Sciences Chernogolovka Russian Federation
| | - Andrei Y. Roman
- Institute of Physiologically Active Compounds, Russian Academy of Sciences Chernogolovka Russian Federation
| | - Ruslan K. Ovchinnikov
- Institute of Physiologically Active Compounds, Russian Academy of Sciences Chernogolovka Russian Federation
| | - Alexey V. Deykin
- Institute of Gene Biology, Russian Academy of Sciences Moscow Russian Federation
| | - Natalia Ninkina
- School of BiosciencesCardiff University Cardiff UK
- Institute of Physiologically Active Compounds, Russian Academy of Sciences Chernogolovka Russian Federation
| | - Vladimir L. Buchman
- School of BiosciencesCardiff University Cardiff UK
- Institute of Physiologically Active Compounds, Russian Academy of Sciences Chernogolovka Russian Federation
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Ninkina NN, Tarasova TV, Chaprov KD, Goloborshcheva VV, Bachurin SO, Buchman VL. Synuclein Deficiency Decreases the Efficiency of Dopamine Uptake by Synaptic Vesicles. DOKL BIOCHEM BIOPHYS 2019; 486:168-170. [PMID: 31367813 DOI: 10.1134/s1607672919030025] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Indexed: 01/25/2023]
Abstract
In the present study, we analyzed the uptake of radiolabeled dopamine by intact synaptosomes and purified synaptic vesicles isolated from the dorsal striatum of mice with constitutive inactivation of all three synuclein-coding genes and wild-type mice. Synuclein deficiency substantially compromised the uptake of this neurotransmitter by synaptic vesicles but had no effect on synaptosomal dopamine uptake.
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Affiliation(s)
- N N Ninkina
- Institute of Physiologically Active Compounds, Russian Academy of Sciences, 142432, Chernogolovka, Moscow oblast, Russia.,Cardiff University, School of Biosciences, Sir Martin Evans Building, Museum Avenue, CF10 3AX, Cardiff, United Kingdom
| | - T V Tarasova
- Institute of Physiologically Active Compounds, Russian Academy of Sciences, 142432, Chernogolovka, Moscow oblast, Russia.,Cardiff University, School of Biosciences, Sir Martin Evans Building, Museum Avenue, CF10 3AX, Cardiff, United Kingdom
| | - K D Chaprov
- Institute of Physiologically Active Compounds, Russian Academy of Sciences, 142432, Chernogolovka, Moscow oblast, Russia.
| | - V V Goloborshcheva
- Institute of Physiologically Active Compounds, Russian Academy of Sciences, 142432, Chernogolovka, Moscow oblast, Russia
| | - S O Bachurin
- Institute of Physiologically Active Compounds, Russian Academy of Sciences, 142432, Chernogolovka, Moscow oblast, Russia
| | - V L Buchman
- Institute of Physiologically Active Compounds, Russian Academy of Sciences, 142432, Chernogolovka, Moscow oblast, Russia.,Cardiff University, School of Biosciences, Sir Martin Evans Building, Museum Avenue, CF10 3AX, Cardiff, United Kingdom
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