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Dembitskaya Y, Boyce AKJ, Idziak A, Pourkhalili Langeroudi A, Arizono M, Girard J, Le Bourdellès G, Ducros M, Sato-Fitoussi M, Ochoa de Amezaga A, Oizel K, Bancelin S, Mercier L, Pfeiffer T, Thompson RJ, Kim SK, Bikfalvi A, Nägerl UV. Shadow imaging for panoptical visualization of brain tissue in vivo. Nat Commun 2023; 14:6411. [PMID: 37828018 PMCID: PMC10570379 DOI: 10.1038/s41467-023-42055-2] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Accepted: 09/25/2023] [Indexed: 10/14/2023] Open
Abstract
Progress in neuroscience research hinges on technical advances in visualizing living brain tissue with high fidelity and facility. Current neuroanatomical imaging approaches either require tissue fixation (electron microscopy), do not have cellular resolution (magnetic resonance imaging) or only give a fragmented view (fluorescence microscopy). Here, we show how regular light microscopy together with fluorescence labeling of the interstitial fluid in the extracellular space provide comprehensive optical access in real-time to the anatomical complexity and dynamics of living brain tissue at submicron scale. Using several common fluorescence microscopy modalities (confocal, light-sheet and 2-photon microscopy) in mouse organotypic and acute brain slices and the intact mouse brain in vivo, we demonstrate the value of this straightforward 'shadow imaging' approach by revealing neurons, microglia, tumor cells and blood capillaries together with their complete anatomical tissue contexts. In addition, we provide quantifications of perivascular spaces and the volume fraction of the extracellular space of brain tissue in vivo.
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Affiliation(s)
- Yulia Dembitskaya
- Interdisciplinary Institute for Neuroscience, CNRS UMR 5297 and University of Bordeaux, F-33000, Bordeaux, France
| | - Andrew K J Boyce
- Interdisciplinary Institute for Neuroscience, CNRS UMR 5297 and University of Bordeaux, F-33000, Bordeaux, France
- Department of Cell Biology and Anatomy, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada
| | - Agata Idziak
- Interdisciplinary Institute for Neuroscience, CNRS UMR 5297 and University of Bordeaux, F-33000, Bordeaux, France
| | | | - Misa Arizono
- Interdisciplinary Institute for Neuroscience, CNRS UMR 5297 and University of Bordeaux, F-33000, Bordeaux, France
- Department of Pharmacology, Kyoto University Graduate School of Medicine/The Hakubi Center for Advanced Research, Kyoto University, Kyoto, Japan
| | - Jordan Girard
- Interdisciplinary Institute for Neuroscience, CNRS UMR 5297 and University of Bordeaux, F-33000, Bordeaux, France
| | - Guillaume Le Bourdellès
- Interdisciplinary Institute for Neuroscience, CNRS UMR 5297 and University of Bordeaux, F-33000, Bordeaux, France
| | - Mathieu Ducros
- Université de Bordeaux, CNRS, INSERM, Bordeaux Imaging Center (BIC), UAR 3420, US 4, F-33000, Bordeaux, France
| | - Marie Sato-Fitoussi
- Interdisciplinary Institute for Neuroscience, CNRS UMR 5297 and University of Bordeaux, F-33000, Bordeaux, France
| | - Amaia Ochoa de Amezaga
- Interdisciplinary Institute for Neuroscience, CNRS UMR 5297 and University of Bordeaux, F-33000, Bordeaux, France
| | - Kristell Oizel
- Université de Bordeaux, INSERM, Bordeaux Institute of Oncology (BRIC), U1312, Bat B2, Allée Geoffroy St Hilaire, 33615, Pessac, France
| | - Stephane Bancelin
- Interdisciplinary Institute for Neuroscience, CNRS UMR 5297 and University of Bordeaux, F-33000, Bordeaux, France
| | - Luc Mercier
- Interdisciplinary Institute for Neuroscience, CNRS UMR 5297 and University of Bordeaux, F-33000, Bordeaux, France
| | - Thomas Pfeiffer
- Interdisciplinary Institute for Neuroscience, CNRS UMR 5297 and University of Bordeaux, F-33000, Bordeaux, France
| | - Roger J Thompson
- Department of Cell Biology and Anatomy, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada
| | - Sun Kwang Kim
- Interdisciplinary Institute for Neuroscience, CNRS UMR 5297 and University of Bordeaux, F-33000, Bordeaux, France
- Department of Physiology, College of Korean Medicine, Kyung Hee University, Seoul, 02447, Korea
| | - Andreas Bikfalvi
- Université de Bordeaux, INSERM, Bordeaux Institute of Oncology (BRIC), U1312, Bat B2, Allée Geoffroy St Hilaire, 33615, Pessac, France
| | - U Valentin Nägerl
- Interdisciplinary Institute for Neuroscience, CNRS UMR 5297 and University of Bordeaux, F-33000, Bordeaux, France.
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Gordleeva S, Dembitskaya Y, Kazantsev V, Postnikov EB. Estimation of cumulative amplitude distributions of miniature postsynaptic currents allows characterising their multimodality, quantal size and variability. Sci Rep 2023; 13:15660. [PMID: 37731019 PMCID: PMC10511413 DOI: 10.1038/s41598-023-42882-9] [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: 06/02/2023] [Accepted: 09/15/2023] [Indexed: 09/22/2023] Open
Abstract
A miniature postsynaptic current (mPSC) is a small, rare, and highly variable spontaneous synaptic event that is generally caused by the spontaneous release of single vesicles. The amplitude and variability of mPSCs are key measures of the postsynaptic processes and are taken as the main characteristics of an elementary unit (quantal size) in traditional quantal analysis of synaptic transmission. Due to different sources of biological and measurement noise, recordings of mPSCs exhibit high trial-to-trial heterogeneity, and experimental measurements of mPSCs are usually noisy and scarce, making their analysis demanding. Here, we present a sequential procedure for precise analysis of mPSC amplitude distributions for the range of small currents. To illustrate the developed approach, we chose previously obtained experimental data on the effect of the extracellular matrix on synaptic plasticity. The proposed statistical technique allowed us to identify previously unnoticed additional modality in the mPSC amplitude distributions, indicating the formation of new immature synapses upon ECM attenuation. We show that our approach can reliably detect multimodality in the distributions of mPSC amplitude, allowing for accurate determination of the size and variability of the quantal synaptic response. Thus, the proposed method can significantly expand the informativeness of both existing and newly obtained experimental data. We also demonstrated that mPSC amplitudes around the threshold of microcurrent excitation follow the Gumbel distribution rather than the binomial statistics traditionally used for a wide range of currents, either for a single synapse or when taking into consideration small influences of the adjacent synapses. Such behaviour is argued to originate from the theory of extreme processes. Specifically, recorded mPSCs represent instant random current fluctuations, among which there are relatively larger spikes (extreme events). They required more level of coherence that can be provided by different mechanisms of network or system level activation including neuron circuit signalling and extrasynaptic processes.
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Affiliation(s)
- Susanna Gordleeva
- Scientific-Educational Mathematical Center "Mathematics of Future Technologies", Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russia.
- Neuroscience Research Institute, Samara State Medical University, Samara, Russia, 443079.
| | - Yulia Dembitskaya
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia, 117997
| | - Victor Kazantsev
- Scientific-Educational Mathematical Center "Mathematics of Future Technologies", Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russia
- Neuroscience Research Institute, Samara State Medical University, Samara, Russia, 443079
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Dembitskaya Y, Piette C, Perez S, Berry H, Magistretti PJ, Venance L. Lactate supply overtakes glucose when neural computational and cognitive loads scale up. Proc Natl Acad Sci U S A 2022; 119:e2212004119. [PMID: 36375086 PMCID: PMC9704697 DOI: 10.1073/pnas.2212004119] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [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] [Received: 07/12/2022] [Accepted: 10/10/2022] [Indexed: 07/23/2023] Open
Abstract
Neural computational power is determined by neuroenergetics, but how and which energy substrates are allocated to various forms of memory engram is unclear. To solve this question, we asked whether neuronal fueling by glucose or lactate scales differently upon increasing neural computation and cognitive loads. Here, using electrophysiology, two-photon imaging, cognitive tasks, and mathematical modeling, we show that both glucose and lactate are involved in engram formation, with lactate supporting long-term synaptic plasticity evoked by high-stimulation load activity patterns and high attentional load in cognitive tasks and glucose being sufficient for less demanding neural computation and learning tasks. Indeed, we show that lactate is mandatory for demanding neural computation, such as theta-burst stimulation, while glucose is sufficient for lighter forms of activity-dependent long-term potentiation (LTP), such as spike timing-dependent plasticity (STDP). We find that subtle variations of spike number or frequency in STDP are sufficient to shift the on-demand fueling from glucose to lactate. Finally, we demonstrate that lactate is necessary for a cognitive task requiring high attentional load, such as the object-in-place task, and for the corresponding in vivo hippocampal LTP expression but is not needed for a less demanding task, such as a simple novel object recognition. Overall, these results demonstrate that glucose and lactate metabolism are differentially engaged in neuronal fueling depending on the complexity of the activity-dependent plasticity and behavior.
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Affiliation(s)
- Yulia Dembitskaya
- Dynamics and Pathophysiology of Neuronal Networks Team, Center for Interdisciplinary Research in Biology (CIRB), Collège de France, CNRS, INSERM, Université PSL, 75005 Paris, France
| | - Charlotte Piette
- Dynamics and Pathophysiology of Neuronal Networks Team, Center for Interdisciplinary Research in Biology (CIRB), Collège de France, CNRS, INSERM, Université PSL, 75005 Paris, France
| | - Sylvie Perez
- Dynamics and Pathophysiology of Neuronal Networks Team, Center for Interdisciplinary Research in Biology (CIRB), Collège de France, CNRS, INSERM, Université PSL, 75005 Paris, France
| | - Hugues Berry
- AIStroSight Lab, INRIA, Hospices Civils de Lyon, Université Claude Bernard Lyon 1, 69603 Villeurbanne, France
- University of Lyon, LIRIS UMR5205, 69622 Villeurbanne, France
| | - Pierre J. Magistretti
- Biological and Environmental Sciences and Engineering (BESE) Division, King Abdullah University of Science and Technology (KAUST), 23955-6900 Thuwal, Saudi Arabia
- Brain Mind Institute, EPFL, 1015 Lausanne, Switzerland
| | - Laurent Venance
- Dynamics and Pathophysiology of Neuronal Networks Team, Center for Interdisciplinary Research in Biology (CIRB), Collège de France, CNRS, INSERM, Université PSL, 75005 Paris, France
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Tyurikova O, Shih P, Dembitskaya Y, Savtchenko LP, McHugh TJ, Rusakov DA, Semyanov A. K + efflux through postsynaptic NMDA receptors suppresses local astrocytic glutamate uptake. Glia 2022; 70:961-974. [PMID: 35084774 PMCID: PMC9132042 DOI: 10.1002/glia.24150] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [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: 11/18/2021] [Revised: 01/14/2022] [Accepted: 01/14/2022] [Indexed: 12/31/2022]
Abstract
Glutamatergic transmission prompts K+ efflux through postsynaptic NMDA receptors. The ensuing hotspot of extracellular K+ elevation depolarizes presynaptic terminal, boosting glutamate release, but whether this also affects glutamate uptake in local astroglia has remained an intriguing question. Here, we find that the pharmacological blockade, or conditional knockout, of postsynaptic NMDA receptors suppresses use-dependent increase in the amplitude and duration of the astrocytic glutamate transporter current (IGluT ), whereas blocking astrocytic K+ channels prevents the duration increase only. Glutamate spot-uncaging reveals that astrocyte depolarization, rather than extracellular K+ rises per se, is required to reduce the amplitude and duration of IGluT . Biophysical simulations confirm that local transient elevations of extracellular K+ can inhibit local glutamate uptake in fine astrocytic processes. Optical glutamate sensor imaging and a two-pathway test relate postsynaptic K+ efflux to enhanced extrasynaptic glutamate signaling. Thus, repetitive glutamatergic transmission triggers a feedback loop in which postsynaptic K+ efflux can transiently facilitate presynaptic release while reducing local glutamate uptake.
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Affiliation(s)
- Olga Tyurikova
- Shemyakin‐Ovchinnikov Institute of Bioorganic ChemistryRussian Academy of SciencesMoscowRussia
- Department of Clinical and Experimental EpilepsyUCL Institute of Neurology, Queen SquareLondonUK
- Brain Science Institute (BSI)RIKENWako‐shiSaitamaJapan
| | - Pei‐Yu Shih
- Brain Science Institute (BSI)RIKENWako‐shiSaitamaJapan
| | - Yulia Dembitskaya
- Shemyakin‐Ovchinnikov Institute of Bioorganic ChemistryRussian Academy of SciencesMoscowRussia
- Brain Science Institute (BSI)RIKENWako‐shiSaitamaJapan
| | - Leonid P. Savtchenko
- Department of Clinical and Experimental EpilepsyUCL Institute of Neurology, Queen SquareLondonUK
| | - Thomas J. McHugh
- Brain Science Institute (BSI)RIKENWako‐shiSaitamaJapan
- RIKEN Center for Brain Science, Wako‐shiSaitamaJapan
| | - Dmitri A. Rusakov
- Department of Clinical and Experimental EpilepsyUCL Institute of Neurology, Queen SquareLondonUK
| | - Alexey Semyanov
- Shemyakin‐Ovchinnikov Institute of Bioorganic ChemistryRussian Academy of SciencesMoscowRussia
- Brain Science Institute (BSI)RIKENWako‐shiSaitamaJapan
- Department of Clinical Pharmacology, Sechenov First Moscow State Medical UniversityMoscowRussia
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Dembitskaya Y, Gavrilov N, Kraev I, Doronin M, Tang Y, Li L, Semyanov A. Attenuation of the extracellular matrix increases the number of synapses but suppresses synaptic plasticity through upregulation of SK channels. Cell Calcium 2021; 96:102406. [PMID: 33848733 DOI: 10.1016/j.ceca.2021.102406] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 04/01/2021] [Accepted: 04/03/2021] [Indexed: 01/01/2023]
Abstract
The effect of brain extracellular matrix (ECM) on synaptic plasticity remains controversial. Here, we show that targeted enzymatic attenuation with chondroitinase ABC (ChABC) of ECM triggers the appearance of new glutamatergic synapses on hippocampal pyramidal neurons, thereby increasing the amplitude of field EPSPs while decreasing both the mean miniature EPSC amplitude and AMPA/NMDA ratio. Although the increased proportion of 'unpotentiated' synapses caused by ECM attenuation should promote long-term potentiation (LTP), surprisingly, LTP was suppressed. The upregulation of small conductance Ca2+-activated K+ (SK) channels decreased the excitability of pyramidal neurons, thereby suppressing LTP. A blockade of SK channels restored cell excitability and enhanced LTP; this enhancement was abolished by a blockade of Rho-associated protein kinase (ROCK), which is involved in the maturation of dendritic spines. Thus, targeting ECM elicits the appearance of new synapses, which can have potential applications in regenerative medicine. However, this process is compensated for by a reduction in postsynaptic neuron excitability, preventing network overexcitation at the expense of synaptic plasticity.
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Affiliation(s)
- Yulia Dembitskaya
- Department of Molecular Neurobiology, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya Street 16/10, Moscow, 117997, Russia
| | - Nikolay Gavrilov
- Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, 603950, Russia
| | - Igor Kraev
- Electron Microscopy Suite, Faculty of Science, Technology, Engineering and Mathematics, Open University, Milton Keynes MK7 6AA, UK
| | - Maxim Doronin
- Department of Molecular Neurobiology, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya Street 16/10, Moscow, 117997, Russia
| | - Yong Tang
- School of Acupuncture and Tuina and International Collaborative Centre on Big Science Plan for Purinergic Signalling, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Li Li
- Department of Physiology, Jiaxing University College of Medicine, Zhejiang, 314033 China
| | - Alexey Semyanov
- Department of Molecular Neurobiology, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya Street 16/10, Moscow, 117997, Russia; Department of Physiology, Jiaxing University College of Medicine, Zhejiang, 314033 China; Sechenov First Moscow State Medical University, Bolshaya Pirogovskaya Str 19с1, Moscow, 119146, Russia.
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Kacher R, Lamazière A, Heck N, Kappes V, Mounier C, Despres G, Dembitskaya Y, Perrin E, Christaller W, Sasidharan Nair S, Messent V, Cartier N, Vanhoutte P, Venance L, Saudou F, Néri C, Caboche J, Betuing S. CYP46A1 gene therapy deciphers the role of brain cholesterol metabolism in Huntington's disease. Brain 2020; 142:2432-2450. [PMID: 31286142 DOI: 10.1093/brain/awz174] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [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: 10/30/2018] [Revised: 04/08/2019] [Accepted: 04/23/2019] [Indexed: 11/14/2022] Open
Abstract
Dysfunctions in brain cholesterol homeostasis have been extensively related to brain disorders. The main pathway for brain cholesterol elimination is its hydroxylation into 24S-hydroxycholesterol by the cholesterol 24-hydrolase, CYP46A1. Increasing evidence suggests that CYP46A1 has a role in the pathogenesis and progression of neurodegenerative disorders, and that increasing its levels in the brain is neuroprotective. However, the mechanisms underlying this neuroprotection remain to be fully understood. Huntington's disease is a fatal autosomal dominant neurodegenerative disease caused by an abnormal CAG expansion in huntingtin's gene. Among the multiple cellular and molecular dysfunctions caused by this mutation, altered brain cholesterol homeostasis has been described in patients and animal models as a critical event in Huntington's disease. Here, we demonstrate that a gene therapy approach based on the delivery of CYP46A1, the rate-limiting enzyme for cholesterol degradation in the brain, has a long-lasting neuroprotective effect in Huntington's disease and counteracts multiple detrimental effects of the mutated huntingtin. In zQ175 Huntington's disease knock-in mice, CYP46A1 prevented neuronal dysfunctions and restored cholesterol homeostasis. These events were associated to a specific striatal transcriptomic signature that compensates for multiple mHTT-induced dysfunctions. We thus explored the mechanisms for these compensations and showed an improvement of synaptic activity and connectivity along with the stimulation of the proteasome and autophagy machineries, which participate to the clearance of mutant huntingtin (mHTT) aggregates. Furthermore, BDNF vesicle axonal transport and TrkB endosome trafficking were restored in a cellular model of Huntington's disease. These results highlight the large-scale beneficial effect of restoring cholesterol homeostasis in neurodegenerative diseases and give new opportunities for developing innovative disease-modifying strategies in Huntington's disease.
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Affiliation(s)
- Radhia Kacher
- Neuroscience Paris Seine, Institut de Biologie Paris-Seine, CNRS UMR 8246/INSERM U1130., Sorbonne Université, Paris, France
| | - Antonin Lamazière
- LBM, CNRS UMR7203/INSERM U1157, Sorbonne Université, Faculté de Médecine, AP-HP, Hôpital Saint Antoine, Département PM2, Paris, France
| | - Nicolas Heck
- Neuroscience Paris Seine, Institut de Biologie Paris-Seine, CNRS UMR 8246/INSERM U1130., Sorbonne Université, Paris, France
| | - Vincent Kappes
- Neuroscience Paris Seine, Institut de Biologie Paris-Seine, CNRS UMR 8246/INSERM U1130., Sorbonne Université, Paris, France
| | - Coline Mounier
- Neuroscience Paris Seine, Institut de Biologie Paris-Seine, CNRS UMR 8246/INSERM U1130., Sorbonne Université, Paris, France
| | - Gaëtan Despres
- LBM, CNRS UMR7203/INSERM U1157, Sorbonne Université, Faculté de Médecine, AP-HP, Hôpital Saint Antoine, Département PM2, Paris, France
| | - Yulia Dembitskaya
- Center for Interdisciplinary Research in Biology, College de France, CNRS UMR7241/INSERM U1050, MemoLife Labex Paris, France
| | - Elodie Perrin
- Center for Interdisciplinary Research in Biology, College de France, CNRS UMR7241/INSERM U1050, MemoLife Labex Paris, France
| | - Wilhelm Christaller
- Université Grenoble Alpes, Grenoble Institut des Neurosciences, INSERM U1216, CHU Grenoble Alpes, 38000 Grenoble, France
| | - Satish Sasidharan Nair
- Sorbonne Université, Centre National de la Recherche Scientifique, Research Unit Biology of Adaptation and Aging (B2A), Team Compensation in Neurodegenerative and Aging (Brain-C), F-75252, Paris, France
| | - Valérie Messent
- Neuroplasticity of Reproductive Behaviors, Sorbonne Université, CNRS, INSERM, Neurosciences Paris Seine, Institut de Biologie Paris Seine, Faculté des Sciences et Ingénierie, INSERM/UMR-S 1130, CNRS/UMR 8246, 75005 Paris, France
| | - Nathalie Cartier
- Biotherapies for neurodegenerative diseases, Institut du Cerveau et de la Moelle (ICM) INSERM Sorbonne Université, Paris, France
| | - Peter Vanhoutte
- Neuroscience Paris Seine, Institut de Biologie Paris-Seine, CNRS UMR 8246/INSERM U1130., Sorbonne Université, Paris, France
| | - Laurent Venance
- Center for Interdisciplinary Research in Biology, College de France, CNRS UMR7241/INSERM U1050, MemoLife Labex Paris, France
| | - Frédéric Saudou
- Université Grenoble Alpes, Grenoble Institut des Neurosciences, INSERM U1216, CHU Grenoble Alpes, 38000 Grenoble, France
| | - Christian Néri
- Sorbonne Université, Centre National de la Recherche Scientifique, Research Unit Biology of Adaptation and Aging (B2A), Team Compensation in Neurodegenerative and Aging (Brain-C), F-75252, Paris, France
| | - Jocelyne Caboche
- Neuroscience Paris Seine, Institut de Biologie Paris-Seine, CNRS UMR 8246/INSERM U1130., Sorbonne Université, Paris, France
| | - Sandrine Betuing
- Neuroscience Paris Seine, Institut de Biologie Paris-Seine, CNRS UMR 8246/INSERM U1130., Sorbonne Université, Paris, France
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Gangarossa G, Perez S, Dembitskaya Y, Prokin I, Berry H, Venance L. BDNF Controls Bidirectional Endocannabinoid Plasticity at Corticostriatal Synapses. Cereb Cortex 2019; 30:197-214. [DOI: 10.1093/cercor/bhz081] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 03/19/2019] [Accepted: 03/20/2019] [Indexed: 12/12/2022] Open
Abstract
AbstractThe dorsal striatum exhibits bidirectional corticostriatal synaptic plasticity, NMDAR and endocannabinoids (eCB) mediated, necessary for the encoding of procedural learning. Therefore, characterizing factors controlling corticostriatal plasticity is of crucial importance. Brain-derived neurotrophic factor (BDNF) and its receptor, the tropomyosine receptor kinase-B (TrkB), shape striatal functions, and their dysfunction deeply affects basal ganglia. BDNF/TrkB signaling controls NMDAR plasticity in various brain structures including the striatum. However, despite cross-talk between BDNF and eCBs, the role of BDNF in eCB plasticity remains unknown. Here, we show that BDNF/TrkB signaling promotes eCB-plasticity (LTD and LTP) induced by rate-based (low-frequency stimulation) or spike-timing–based (spike-timing–dependent plasticity, STDP) paradigm in striatum. We show that TrkB activation is required for the expression and the scaling of both eCB-LTD and eCB-LTP. Using 2-photon imaging of dendritic spines combined with patch-clamp recordings, we show that TrkB activation prolongs intracellular calcium transients, thus increasing eCB synthesis and release. We provide a mathematical model for the dynamics of the signaling pathways involved in corticostriatal plasticity. Finally, we show that TrkB activation enlarges the domain of expression of eCB-STDP. Our results reveal a novel role for BDNF/TrkB signaling in governing eCB-plasticity expression in striatum and thus the engram of procedural learning.
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Affiliation(s)
- Giuseppe Gangarossa
- Center for Interdisciplinary Research in Biology, College de France, Centre National de la Recherche Scientifique (CNRS) UMR, Institut National de la Santé et de la Recherche (INSERM), Paris Sciences et Lettres (PSL) Research University, Paris, France
| | - Sylvie Perez
- Center for Interdisciplinary Research in Biology, College de France, Centre National de la Recherche Scientifique (CNRS) UMR, Institut National de la Santé et de la Recherche (INSERM), Paris Sciences et Lettres (PSL) Research University, Paris, France
| | - Yulia Dembitskaya
- Center for Interdisciplinary Research in Biology, College de France, Centre National de la Recherche Scientifique (CNRS) UMR, Institut National de la Santé et de la Recherche (INSERM), Paris Sciences et Lettres (PSL) Research University, Paris, France
| | - Ilya Prokin
- INRIA, Villeurbanne, France
- University of Lyon, LIRIS UMR, Villeurbanne, France
| | - Hugues Berry
- INRIA, Villeurbanne, France
- University of Lyon, LIRIS UMR, Villeurbanne, France
| | - Laurent Venance
- Center for Interdisciplinary Research in Biology, College de France, Centre National de la Recherche Scientifique (CNRS) UMR, Institut National de la Santé et de la Recherche (INSERM), Paris Sciences et Lettres (PSL) Research University, Paris, France
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Meissner-Bernard C, Dembitskaya Y, Venance L, Fleischmann A. Encoding of Odor Fear Memories in the Mouse Olfactory Cortex. Curr Biol 2019; 29:367-380.e4. [DOI: 10.1016/j.cub.2018.12.003] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2018] [Revised: 10/19/2018] [Accepted: 12/04/2018] [Indexed: 11/26/2022]
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Wu YW, Gordleeva S, Tang X, Shih PY, Dembitskaya Y, Semyanov A. Morphological profile determines the frequency of spontaneous calcium events in astrocytic processes. Glia 2018; 67:246-262. [DOI: 10.1002/glia.23537] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 08/19/2018] [Accepted: 09/03/2018] [Indexed: 11/08/2022]
Affiliation(s)
- Yu-Wei Wu
- Brain Science Institute (BSI), RIKEN; Wako-shi Saitama Japan
- Institute of Molecular Biology, Academia Sinica; Nankang Taipei Taiwan
| | - Susan Gordleeva
- Institute of Neuroscience, University of Nizhny Novgorod; Nizhny Novgorod Russia
| | - Xiaofang Tang
- Brain Science Institute (BSI), RIKEN; Wako-shi Saitama Japan
| | - Pei-Yu Shih
- Brain Science Institute (BSI), RIKEN; Wako-shi Saitama Japan
| | - Yulia Dembitskaya
- Brain Science Institute (BSI), RIKEN; Wako-shi Saitama Japan
- Institute of Neuroscience, University of Nizhny Novgorod; Nizhny Novgorod Russia
| | - Alexey Semyanov
- Brain Science Institute (BSI), RIKEN; Wako-shi Saitama Japan
- Institute of Neuroscience, University of Nizhny Novgorod; Nizhny Novgorod Russia
- Department of Molecular Neurobiology, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences; Moscow Russia
- All-Russian Research Institute of Medicinal and Aromatic Plants; Moscow Russia
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Danielyan A, Wu YW, Shih PY, Dembitskaya Y, Semyanov A. Denoising of two-photon fluorescence images with Block-Matching 3D filtering. Methods 2014; 68:308-16. [DOI: 10.1016/j.ymeth.2014.03.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2013] [Revised: 03/07/2014] [Accepted: 03/10/2014] [Indexed: 12/31/2022] Open
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11
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Wu YW, Tang X, Arizono M, Bannai H, Shih PY, Dembitskaya Y, Kazantsev V, Tanaka M, Itohara S, Mikoshiba K, Semyanov A. Spatiotemporal calcium dynamics in single astrocytes and its modulation by neuronal activity. Cell Calcium 2014; 55:119-29. [DOI: 10.1016/j.ceca.2013.12.006] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2013] [Revised: 12/27/2013] [Accepted: 12/28/2013] [Indexed: 12/20/2022]
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