Data-Driven Computational Modelling for Some of the Implications of Dopamine in the Brain : from Subcellular Signalling to Area Networks Alexandre Foncelle

Total Page:16

File Type:pdf, Size:1020Kb

Data-Driven Computational Modelling for Some of the Implications of Dopamine in the Brain : from Subcellular Signalling to Area Networks Alexandre Foncelle Data-driven computational modelling for some of the implications of dopamine in the brain : From subcellular signalling to area networks Alexandre Foncelle To cite this version: Alexandre Foncelle. Data-driven computational modelling for some of the implications of dopamine in the brain : From subcellular signalling to area networks. Quantitative Methods [q-bio.QM]. Université de Lyon, 2018. English. NNT : 2018LYSEI028. tel-02090797 HAL Id: tel-02090797 https://tel.archives-ouvertes.fr/tel-02090797 Submitted on 5 Apr 2019 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. ! N°d’ordre NNT : /<6(, THESE de DOCTORAT DE L’UNIVERSITE DE LYON opérée au sein de (INSA LYON) Ecole Doctorale N° 512 Mathématiques et Informatique (InfoMaths) Discipline de doctorat : Informatique et applications Soutenue publiquement le , par : Alexandre Foncelle Data-driven computational modelling for some of the implications of dopamine in the brain: from subcellular signalling to area networks. Devant le jury composé de : Tsaneva-Atanasova, Krasimira Professor University of Exeter Rapporteure Faure, Philippe Directeur de recherche Université Pierre et Marie Curie Rapporteur Soula, Hédi Professeur Université Pierre et Marie Curie Examinateur Beslon, Guillaume Professeur INRIA Examinateur Berry, Hugues Directeur de recherche INRIA Directeur de thèse Cette thèse est accessible à l'adresse : http://theses.insa-lyon.fr/publication/2018LYSEI028/these.pdf © [A. Foncelle], [2018], INSA Lyon, tous droits réservés Département FEDORA – INSA Lyon - Ecoles Doctorales – Quinquennal 2016-2020 SIGLE ÉCOLE DOCTORALE NOM ET COORDONNEES DU RESPONSABLE CHIMIE CHIMIE DE LYON M. Stéphane DANIELE Institut de recherches sur la catalyse et l’environnement de Lyon http://www.edchimie-lyon.fr IRCELYON-UMR 5256 Sec. : Renée EL MELHEM Équipe CDFA Bât. Blaise PASCAL, 3e étage 2 Avenue Albert EINSTEIN [email protected] 69 626 Villeurbanne CEDEX INSA : R. GOURDON [email protected] !"!"#" ! ÉLECTRONIQUE, M. Gérard SCORLETTI ÉLECTROTECHNIQUE, École Centrale de Lyon AUTOMATIQUE 36 Avenue Guy DE COLLONGUE 69 134 Écully http://edeea.ec-lyon.fr Tél : 04.72.18.60.97 Fax 04.78.43.37.17 Sec. : M.C. HAVGOUDOUKIAN [email protected] [email protected] !$%$ ! ÉVOLUTION, ÉCOSYSTÈME, M. Fabrice CORDEY MICROBIOLOGIE, MODÉLISATION CNRS UMR 5276 Lab. de géologie de Lyon Université Claude Bernard Lyon 1 http://e2m2.universite-lyon.fr Bât. Géode Sec. : Sylvie ROBERJOT 2 Rue Raphaël DUBOIS Bât. Atrium, UCB Lyon 1 69 622 Villeurbanne CEDEX Tél : 04.72.44.83.62 Tél : 06.07.53.89.13 INSA : H. CHARLES [email protected] [email protected] !&'(( ! INTERDISCIPLINAIRE Mme Emmanuelle CANET-SOULAS SCIENCES-SANTÉ INSERM U1060, CarMeN lab, Univ. Lyon 1 Bâtiment IMBL http://www.ediss-lyon.fr 11 Avenue Jean CAPELLE INSA de Lyon Sec. : Sylvie ROBERJOT 69 621 Villeurbanne Bât. Atrium, UCB Lyon 1 Tél : 04.72.68.49.09 Fax : 04.72.68.49.16 Tél : 04.72.44.83.62 [email protected] INSA : M. LAGARDE [email protected] ')*+%#,-( !INFORMATIQUE ET M. Luca ZAMBONI MATHÉMATIQUES Bât. Braconnier 43 Boulevard du 11 novembre 1918 http://edinfomaths.universite-lyon.fr 69 622 Villeurbanne CEDEX Sec. : Renée EL MELHEM Tél : 04.26.23.45.52 Bât. Blaise PASCAL, 3e étage [email protected] Tél : 04.72.43.80.46 Fax : 04.72.43.16.87 [email protected] %./012.34 ! MATÉRIAUX DE LYON M. Jean-Yves BUFFIÈRE INSA de Lyon http://ed34.universite-lyon.fr MATEIS - Bât. Saint-Exupéry Sec. : Marion COMBE 7 Avenue Jean CAPELLE Tél : 04.72.43.71.70 Fax : 04.72.43.87.12 69 621 Villeurbanne CEDEX Bât. Direction Tél : 04.72.43.71.70 Fax : 04.72.43.85.28 [email protected] [email protected] %!5# ! MÉCANIQUE, ÉNERGÉTIQUE, M. Philippe BOISSE GÉNIE CIVIL, ACOUSTIQUE INSA de Lyon Laboratoire LAMCOS http://edmega.universite-lyon.fr Bâtiment Jacquard Sec. : Marion COMBE 25 bis Avenue Jean CAPELLE Tél : 04.72.43.71.70 Fax : 04.72.43.87.12 69 621 Villeurbanne CEDEX Bât. Direction Tél : 04.72.43.71.70 Fax : 04.72.43.72.37 [email protected] [email protected] (6(7 ! ScSo * M. Christian MONTES Université Lyon 2 http://ed483.univ-lyon2.fr 86 Rue Pasteur Sec. : Viviane POLSINELLI 69 365 Lyon CEDEX 07 Brigitte DUBOIS [email protected] INSA : J.Y. TOUSSAINT Tél : 04.78.69.72.76 [email protected] *ScSo : Histoire, Géographie, Aménagement, Urbanisme, Archéologie, Science politique, Sociologie, Anthropologie Cette thèse est accessible à l'adresse : http://theses.insa-lyon.fr/publication/2018LYSEI028/these.pdf © [A. Foncelle], [2018], INSA Lyon, tous droits réservés ii Cette thèse est accessible à l'adresse : http://theses.insa-lyon.fr/publication/2018LYSEI028/these.pdf © [A. Foncelle], [2018], INSA Lyon, tous droits réservés R´esum´e Au cours de l’histoire, le cerveau a ´et´e´etudi´esous di ff´erents aspects. Du 5`eme au 17`eme si`ecle, le cerveau fut compar´eaux mod`eles hydrauliques, o`ules liquides ´etaient consid´er´es comme le support des pens´ees. Puis, durant le 18`eme si`ecle, le cerveau fut associ´e aux mod`eles´electriques, on venait de d´ecouvrir la sensibilit´edes muscles et des nerfs aux d´echarges ´electriques (Mein, 1988). De nos jours, le fonctionnement du cerveau est com- par´eaux calculs en parall`ele, aux statistiques bay´esiennes et aux dynamiques de r´eseau de neurones. Ce tr`es bref historique montre que nos repr´esentations du cerveau d´ependent largement de ce qui peut ˆetre mesur´eet des similitudes que l’on peut trouver avec des concepts d´ej`a connus. Ces moyens de repr´esentation simplifient notre compr´ehension du cerveau, c’est un objet tr`escomplexe comme l’illustre la diversit´ede sa composition, par exemple, la multitude de mol´ecules, de cellules, de tissus et la vari´et´ede leurs interactions et leurs effets multi´echelle. Dans le cerveau, il est di fficile de mettre au point des exp´eriences avec un niveau de contrˆole appropri´e`acause du haut niveau de connectivit´e. Pour traiter ce probl`eme, les mod`eles math´ematiques sont utilis´espour repr´esenter le cerveau d’une fa¸con plus compr´ehensible. En e ffet, les mod`eles math´ematiques peuvent ˆetre plus pratiques que les exp´eriences pour tester des hypoth`eseset chercher `aextraire l’essence mˆeme du principe ´etudi´e,en le simplifiant. De plus, la mod´elisation computationnelle forme une branche sp´ecifique de la mod´elisation math´ematique, permettant de r´esoudre de gros cal- culs num´eriques. Dans cette th`ese, j’ai utilis´ela mod´elisation computationnelle `atravers di ff´erentes approches pour ´etudier certaines r´egions c´er´ebrales. Nous avons collabor´eavec des neu- robiologistes en appliquant nos mod`eles `ades donn´ees exp´erimentales pour contribuer `a mieux comprendre l’action de la dopamine, un neuromodulateur. J’ai ´etudi´ela diversit´e de l’action de la dopamine `atrois ´echelles: la r´egion c´er´ebrale, le niveau cellulaire et le niveau mol´eculaire. La dopamine a un gros impact sur le cerveau et elle est princi- palement connue pour son implication dans le syst`eme de r´ecompense. En e ffet, c’est une mol´ecule associ´ee`ala pr´ediction de r´ecompense et de punition. Peu de r´egions produisent de la dopamine et ces r´egions sont alt´er´eespar la maladie de Parkinson ou perturb´eespar la d´epression. Pour la maladie de Parkinson, j’ai con¸cu un mod`ele de type taux de d´echarge pour reproduire l’activit´eneuronale des ganglions de la base. Ce mod`ele montre des r´eponses neuronales significativement di ff´erentes, entre la condition t´emoin et la condition parkinsonienne. Par ailleurs, avec un mod`ele de type Hodgin-Huxley prenant en compte la dynamique de l’ion potassium, j’ai pu appuyer l’hypoth`ese que la r´egion c´er´ebrale appel´ee l’habenula, lorsqu’elle est hyperactive, induirait la d´epression. Cette d´epression serait due `aun d´es´equilibre de la concentration en potassium `acause d’une dysfonction de l’astrocyte (surexpression des canaux Kir4.1). Enfin, la dopamine est aussi impliqu´eedans la plasticit´esynaptique, un ph´enom`ene `ala base de la m´emoire. Je l’ai ´etudi´eavec un troisi`eme mod`ele, prenant en compte plusieurs r´esultats exp´erimentaux relatifs `ala plasticit´een fonction du timing des potentiels d’action et de sa modulation. iii Cette thèse est accessible à l'adresse : http://theses.insa-lyon.fr/publication/2018LYSEI028/these.pdf © [A. Foncelle], [2018], INSA Lyon, tous droits réservés iv La maladie de Parkinson Dans le contexte de la maladie de Parkinson, nous avons collabor´eavec des exp´erimentateurs (l’´equipe de Laurent Venance au Coll`ege de France, Paris) pour ´etudier les ganglions de la base, une r´egion du cerveau connue pour ˆetre alt´er´ee chez les malades parkinsoniens. La maladie de Parkinson est caract´eris´ee, aux premiers stades, par des symptˆomes moteurs, comme des tremblements et une rigidit´edes muscles, puis des di fficult´es`aun plus haut niveau cognitif, comme la planification ou la r´esolution de probl`emes, enfin, si elle n’est pas trait´ee,de l’apathie et de l’anxi´et´e.C’est une maladie neurod´eg´en´erative, ce qui signifie que des neurones sp´ecifiques deviennent dysfonctionnels, en particulier les neurones des ganglions de la base, la r´egion c´er´ebrale impliqu´ee dans le contrˆole de la motricit´eet les fonctions ex´ecutives.
Recommended publications
  • Neuromodulators and Long-Term Synaptic Plasticity in Learning and Memory: a Steered-Glutamatergic Perspective
    brain sciences Review Neuromodulators and Long-Term Synaptic Plasticity in Learning and Memory: A Steered-Glutamatergic Perspective Amjad H. Bazzari * and H. Rheinallt Parri School of Life and Health Sciences, Aston University, Birmingham B4 7ET, UK; [email protected] * Correspondence: [email protected]; Tel.: +44-(0)1212044186 Received: 7 October 2019; Accepted: 29 October 2019; Published: 31 October 2019 Abstract: The molecular pathways underlying the induction and maintenance of long-term synaptic plasticity have been extensively investigated revealing various mechanisms by which neurons control their synaptic strength. The dynamic nature of neuronal connections combined with plasticity-mediated long-lasting structural and functional alterations provide valuable insights into neuronal encoding processes as molecular substrates of not only learning and memory but potentially other sensory, motor and behavioural functions that reflect previous experience. However, one key element receiving little attention in the study of synaptic plasticity is the role of neuromodulators, which are known to orchestrate neuronal activity on brain-wide, network and synaptic scales. We aim to review current evidence on the mechanisms by which certain modulators, namely dopamine, acetylcholine, noradrenaline and serotonin, control synaptic plasticity induction through corresponding metabotropic receptors in a pathway-specific manner. Lastly, we propose that neuromodulators control plasticity outcomes through steering glutamatergic transmission, thereby gating its induction and maintenance. Keywords: neuromodulators; synaptic plasticity; learning; memory; LTP; LTD; GPCR; astrocytes 1. Introduction A huge emphasis has been put into discovering the molecular pathways that govern synaptic plasticity induction since it was first discovered [1], which markedly improved our understanding of the functional aspects of plasticity while introducing a surprisingly tremendous complexity due to numerous mechanisms involved despite sharing common “glutamatergic” mediators [2].
    [Show full text]
  • On the Integration of Subthreshold Inputs from Perforant Path and Schaffer Collaterals in Hippocampal CA1 Pyramidal Neurons
    Journal of Computational Neuroscience 14, 185–192, 2003 c 2003 Kluwer Academic Publishers. Manufactured in The Netherlands. On the Integration of Subthreshold Inputs from Perforant Path and Schaffer Collaterals in Hippocampal CA1 Pyramidal Neurons MICHELE MIGLIORE Section of Neurobiology, Yale University School of Medicine, New Haven, CT, USA; Institute of Biophysics, Nat. Res. Council, Palermo, Italy [email protected] Received October 15, 2001; Revised September 6, 2002; Accepted September 6, 2002 Action Editor: E. Bard Ermentrout Abstract. Using a realistic model of a CA1 hippocampal pyramidal neuron, we make experimentally testable predictions on the roles of the non-specific cation current, Ih, and the A-type Potassium current, IA, in modulating the temporal window for the integration of the two main excitatory afferent pathways of a CA1 neuron, the Schaffer Collaterals and the Perforant Path. The model shows that the experimentally observed increase in the dendritic density of Ih and IA could have a major role in constraining the temporal integration window for these inputs, in such a way that a somatic action potential (AP) is elicited only when they are activated with a relative latency consistent with the anatomical arrangement of the hippocampal circuitry. Keywords: dendritic integration, IA, Ih, CA1, modeling Introduction these two conductances between pyramidal neurons of hippocampus and neocortex. The gKA increases with Although important details on how dendrites and their distance from the soma in CA1, whereas in neocor- active properties are involved in neural computation tical neurons it is constant (Korngreen and Sakmann, have been elucidated, the rules according to which 2000; Bekkers, 2000), and it does not seem to play the dendritic trees and, especially, ionic conductances are same role as in CA1 (Stuart and H¨ausser, 2001).
    [Show full text]
  • Associative Learning and CA3–CA1 Synaptic Plasticity Are Impaired In
    12288 • The Journal of Neuroscience, September 15, 2010 • 30(37):12288–12300 Behavioral/Systems/Cognitive Associative Learning and CA3–CA1 Synaptic Plasticity Are Ϫ/Ϫ Impaired in D1R Null, Drd1a Mice and in Hippocampal siRNA Silenced Drd1a Mice Oskar Ortiz,1,2 Jose´ María Delgado-García,3 Isabel Espadas,1,2 Amine Bahí,4 Ramo´n Trullas,2,5 Jean-Luc Dreyer,4 Agne`s Gruart,3* and Rosario Moratalla1,2* 1Instituto Cajal, Consejo Superior de Investigaciones Científicas (CSIC), Madrid 28002, Spain, 2Centro de Investigacio´n Biome´dica en Red sobre Enfermedades Neurodegenerativas, Instituto de Salud Carlos III, Madrid 28002, Spain, 3Divisio´n de Neurociencias, Universidad Pablo de Olavide, Sevilla 41013, Spain, 4University of Fribourg, Fribourg, Switzerland, and 5Instituto de Invest Biome´dicas de Barcelona, CSIC, Barcelona 08036, Spain Associative learning depends on multiple cortical and subcortical structures, including striatum, hippocampus, and amygdala. Both glutamatergic and dopaminergic neurotransmitter systems have been implicated in learning and memory consolidation. While the role of glutamate is well established, the role of dopamine and its receptors in these processes is less clear. In this study, we used two models Ϫ/Ϫ of dopamine D1 receptor (D1R, Drd1a) loss, D1R knock-out mice (Drd1a ) and mice with intrahippocampal injections of Drd1a-siRNA (small interfering RNA), to study the role of D1R in different models of learning, hippocampal long-term potentiation (LTP) and associ- ated gene expression. D1R loss markedly reduced spatial learning, fear learning, and classical conditioning of the eyelid response, as well as the associated activity-dependent synaptic plasticity in the hippocampal CA1–CA3 synapse.
    [Show full text]
  • Synaptopac, an Optogenetic Tool for Induction of Presynaptic Plasticity
    bioRxiv preprint doi: https://doi.org/10.1101/2020.03.27.011635; this version posted March 27, 2020. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY-ND 4.0 International license. SynaptoPAC, an Optogenetic Tool for Induction of Presynaptic Plasticity Silvia Oldani1,2, Laura Moreno-Velasquez2, Alexander Stumpf2, Christian Rosenmund2, Dietmar Schmitz1-5,*, Benjamin R. Rost1,* 1 German Center for Neurodegenerative Diseases (DZNE), 10117 Berlin, Germany 2 Charité – Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, and Berlin Institute of Health, NeuroCure Cluster of Excellence, Charitéplatz 1, 10117 Berlin, Germany 3 Max-Delbruck-Centrum (MDC) for molecular medicine, 13125 Berlin, Germany. 4 Bernstein Center for Computational Neuroscience, 10115 Berlin, Germany. 5 Einstein Center for Neurosciences Berlin, 10117 Berlin, Germany. * Correspondence: [email protected]; [email protected] Abstract: Optogenetic manipulations have transformed neuroscience in recent years. While sophisticated tools now exist for controlling the firing patterns of neurons, it remains challenging to optogenetically define the plasticity state of individual synapses. A variety of synapses in the mammalian brain express presynaptic long-term potentiation (LTP) upon elevation of presynaptic cyclic adenosine monophosphate (cAMP), but the molecular expression mechanisms as well as the impact of presynaptic LTP on network activity and behavior are not fully understood. In order to establish optogenetic control of presynaptic cAMP levels and thereby presynaptic potentiation, we developed synaptoPAC, a presynaptically targeted version of the photoactivated adenylyl cyclase bPAC.
    [Show full text]
  • Modulation of Long-Term Potentiation Through a Presynaptic Mechanism Involving Trkb
    The Journal of Neuroscience, September 15, 2000, 20(18):6888–6897 The Role of Brain-Derived Neurotrophic Factor Receptors in the Mature Hippocampus: Modulation of Long-Term Potentiation through a Presynaptic Mechanism involving TrkB Baoji Xu,1 Wolfram Gottschalk,3 Ana Chow,3 Rachel I. Wilson,2 Eric Schnell,2 Keling Zang,1 Denan Wang,1 Roger A. Nicoll,2 Bai Lu,3 and Louis F. Reichardt1 1Howard Hughes Medical Institute, Program in Neuroscience and Department of Physiology, and 2Program in Neuroscience and Department of Cellular and Molecular Pharmacology, University of California, San Francisco, California 94143, and 3Unit on Synapse Development and Plasticity, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland 20892 The neurotrophin BDNF has been shown to modulate long-term fects presynaptic function and reduces the ability of tetanic potentiation (LTP) at Schaffer collateral-CA1 hippocampal syn- stimulation to induce LTP. Postsynaptic glutamate receptors are apses. Mutants in the BDNF receptor gene trkB and antibodies to not affected by TrkB reduction, indicating that BDNF does not its second receptor p75NTR have been used to determine the modulate plasticity through postsynaptic TrkB. Consistent with receptors and cells involved in this response. Inhibition of this, elimination of TrkB in postsynaptic neurons does not affect p75NTR does not detectably reduce LTP or affect presynaptic LTP. Moreover, normal LTP is generated in the mutant with re- function, but analyses of newly generated trkB mutants implicate duced TrkB by a depolarization–low-frequency stimulation pair- TrkB. One mutant has reduced expression in a normal pattern of ing protocol that puts minimal demands on presynaptic terminal TrkB throughout the brain.
    [Show full text]
  • Globus Pallidus Neurochemical Responses to the Partial Nmda Agonist Glyx-13 Among Hd51 Huntington's Disease Model Rats
    GLOBUS PALLIDUS NEUROCHEMICAL RESPONSES TO THE PARTIAL NMDA AGONIST GLYX-13 AMONG HD51CAG HUNTINGTON’S DISEASE MODEL RATS Antigone Wolfram-Aduan2, Aaron Antcliff2, Zach Semaan2, Jennifer Knirk2, John Wickwire2, Abby Knoll2, Becky Koepke2, Justin Gilardone2, Amanda Hartman2, Michael Mandziara2, Haley Tomlinson2, Dana Delaney2, Megan Altemus2 Andrew Crane2, Jessica Matyas3, Steven Lowrance, M.S.2, Naveen Jayaprakash, M.S.2, Joseph Moskal, Ph.D.6, Julien Rossignol, Ph.D.2,4,5, Gary Dunbar, Ph.D.1,2,3,5, and Michael Sandström, Ph.D.1,2,3 SandstromSandstrom Central Michigan University Dept. of Psychology1, Neuroscience2, Experimental Psychology3 Programs, and College of Medicine4, Mount Pleasant MI 48859 USA CentralCentral MichiganMichigan UniversityUniversity 5Field Neurosciences Institute, Saginaw MI 48604 USA LabLab NeuroscienceNeuroscience ProgramProgram 6Falk Center for Molecular Therapeutics, Dept. of Biomedical Engineering, Northwestern University, Evanston IL 60201 USA HPLC RESULTS INTRODUCTION D. Median Baseline Huntington’s disease (HD) is a hereditary neurodegenerative disorder characterized by A. Glutamate B. Glutamine D. cognitive and behavioral dysfunctions (motor impairments) and striatal neurodegeneration 175 GLYX-13 150 GLYX-13 2500 7 in later stages. HD is caused by an expansion of repeated CAG codons for glutamine on Wild Type Content Dialysate 150 125 6 the huntingtin gene, expanding the Huntingtin protein. It is hypothesized that abnormal Homozygote 2000 glutamate transmission may underlie the neuropathological changes seen in HD. In excess, 125 100 5 (ng) GABA glutamate can produce excitotoxicity in the brain, leading to neuronal cell death, and a 100 Wild Type 9 mo 75 1500 4 defect in glutamate reuptake by astrocytes may contribute to the phenotype exhibited.
    [Show full text]
  • Hippocampal Neurophysiology Is Modified by a Disease-Associated C-Terminal Fragment of Tau Protein
    Hippocampal neurophysiology is modified by a disease-associated C-terminal fragment of tau protein Article Published Version Creative Commons: Attribution 4.0 (CC-BY) Open Access Tamagnini, F., Walsh, D., Brown, J. T., Bondulich, M. K., Hanger, D. P. and Randall, A. D. (2017) Hippocampal neurophysiology is modified by a disease-associated C- terminal fragment of tau protein. Neurobiology of Aging, 60. pp. 44-56. ISSN 0197-4580 doi: https://doi.org/10.1016/j.neurobiolaging.2017.07.005 Available at http://centaur.reading.ac.uk/80435/ It is advisable to refer to the publisher’s version if you intend to cite from the work. See Guidance on citing . To link to this article DOI: http://dx.doi.org/10.1016/j.neurobiolaging.2017.07.005 Publisher: Elsevier All outputs in CentAUR are protected by Intellectual Property Rights law, including copyright law. Copyright and IPR is retained by the creators or other copyright holders. Terms and conditions for use of this material are defined in the End User Agreement . www.reading.ac.uk/centaur CentAUR Central Archive at the University of Reading Reading’s research outputs online Neurobiology of Aging 60 (2017) 44e56 Contents lists available at ScienceDirect Neurobiology of Aging journal homepage: www.elsevier.com/locate/neuaging Hippocampal neurophysiology is modified by a disease-associated C-terminal fragment of tau protein Francesco Tamagnini a,*, Darren A. Walsh a, Jon T. Brown a, Marie K. Bondulich b, Diane P. Hanger b, Andrew D. Randall a a Institute of Clinical and Biomedical Sciences, University of Exeter Medical School, University of Exeter, Exeter, UK b King’s College London, Institute of Psychiatry, Psychology & Neuroscience, Maurice Wohl Clinical Neuroscience Institute, London, UK article info abstract Article history: The accumulation of cleaved tau fragments in the brain is associated with several tauopathies.
    [Show full text]
  • Laminar Selectivity of the Cholinergic Suppression of Synaptic Transmission in Rat Hippocampal Region CA 1: Computational Modeling and Brain Slice Physiology
    The Journal of Neuroscience, June 1994, 14(6): 38983914 Laminar Selectivity of the Cholinergic Suppression of Synaptic Transmission in Rat Hippocampal Region CA 1: Computational Modeling and Brain Slice Physiology Michael E. Hasselmo and Eric Schnell Department of Psychology and Program in Neuroscience, Harvard University, Cambridge, Massachusetts 02138 ACh may set the dynamics of cortical function to those ap- ACh suppressesexcitatory synaptic transmissionin many regions propriate for learning new information. In models of the pu- of the cortex, including the piriform cortex (Williams and Con- tative associative memory function of piriform cortex, se- stanti, 1988; Hasselmo and Bower, 1992) the dentate gyrus lective suppression of intrinsic but not afferent fiber synaptic (Yamamoto and Kawai, 1967; Kahle and Cotman, 1989; Bur- transmission by ACh prevents recall of previous input from gard and Sarvey, 1990) region CA1 of the hippocampus interfering with the learning of new input (Hasselmo, 1993). (Hounsgaard, 1978; Valentino and Dingledine, 1981; Dutar and Selective cholinergic suppression may play a similar role in Nicoll, 1988; Blitzer et al., 1990; Sheridan and Sutor, 1990) the hippocampal formation, where Schaffer collateral syn- and neocortical structures (Brother et al., 1992). The memory apses in stratum radiatum (s. rad) may store associations impairment causedby muscarinic antagonistsor lesionsof cor- between activity in region CA3 and the entorhinal cortex tical cholinergic innervation (Beatty and Carbone, 1980; Walker input to region CA1 terminating in stratum lacunosum-mo- and Olton, 1984; Spenceret al., 1985; Kopelman, 1986; Hagan leculare (s. l-m). A computational model of region CA1 pre- and Morris, 1989) may be due to blockade of this cholinergic dicts that for effective associative memory function of the suppression.
    [Show full text]
  • 120 Years of Hippocampal Schaffer Collaterals
    HIPPOCAMPUS 22:1508–1516 (2012) COMMENTARY 120 years of Hippocampal Schaffer Collaterals Imre Szirmai,1* Gyo¨rgy Buzsa´ki,2 and Anita Kamondi3 ABSTRACT: Ka´roly Schaffer (1864–1939) was a Hungarian neurolo- Schaffer’s scientific career coincided with the era of gist who distinguished himself through original discoveries in human feverish discussions on the nature of neuronal commu- neuropathology. At the beginning of his scientific carrier, he described ´ the cellular and fiber structure of the hippocampus, earning him a high nication, initiated by Santiago Ramon y Cajal. The reputation in neuroscience. Schaffer (1892) described the so-called ‘‘reticularis camp,’’ lead by Camillo Golgi (1843– ‘‘collateral fiber system’’ that connects the CA3 and CA1 regions of the 1926), promoted the idea that the cytoplasm of one hippocampus, known today as Schaffer collaterals. To decipher the his- nerve cell was continuous with the cytoplasm of other tory of this well-known eponym, we review Schaffer’s original German nerve cells. However, Ramo´n y Cajal could not find publication and follow the impact of his research in the contemporary evidence for the continuity among neurons, and literature. VC 2012 Wiley Periodicals Inc. instead, he argued that nerve cells were independent KEY WORDS: CA3; CA1; connectivity; cell types; interneurons elements establishing connections by contiguity, i.e., only touching each other (Finger, 1994). The neuron doctrine debate was fully blooming after von Wal- deyer-Hartz’s (1856–1921) imposing review on the INTRODUCTION subject in 1891. After this publication, the continuous reticular network hypothesis of Golgi no longer Ka´roly Schaffer (Fig. 1), son of a sculptor, completed his medical appeared tenable, although the Hungarian Istva´n studies in Budapest in 1888 (Baran et al., 2008).
    [Show full text]
  • Short-Term Plasticity at the Schaffer Collateral: a New Model with Implications for Hippocampal Processing
    Portland State University PDXScholar Dissertations and Theses Dissertations and Theses Summer 1-1-2012 Short-Term Plasticity at the Schaffer Collateral: A New Model with Implications for Hippocampal Processing Andrew Hamilton Toland Portland State University Follow this and additional works at: https://pdxscholar.library.pdx.edu/open_access_etds Part of the Musculoskeletal, Neural, and Ocular Physiology Commons, Neurology Commons, and the Other Mathematics Commons Let us know how access to this document benefits ou.y Recommended Citation Toland, Andrew Hamilton, "Short-Term Plasticity at the Schaffer Collateral: A New Model with Implications for Hippocampal Processing" (2012). Dissertations and Theses. Paper 756. https://doi.org/10.15760/etd.756 This Dissertation is brought to you for free and open access. It has been accepted for inclusion in Dissertations and Theses by an authorized administrator of PDXScholar. Please contact us if we can make this document more accessible: [email protected]. Short-Term Plasticity at the Schaffer Collateral: A New Model with Implications for Hippocampal Processing by Andrew Hamilton Toland A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Systems Science Dissertation Committee: George G. Lendaris, Chair Patrick Roberts Mathew Frerking Dacian Daescu Gerardo Lafferriere Portland State University ©2012 i Abstract A new mathematical model of short-term synaptic plasticity (STP) at the Schaffer collateral is introduced. Like other models of STP, the new model relates short-term synaptic plasticity to an interaction between facilitative and depressive dynamic influ- ences. Unlike previous models, the new model successfully simulates facilitative and depressive dynamics within the framework of the synaptic vesicle cycle.
    [Show full text]
  • Feedforward Excitation of the Hippocampus by Afferents from the Entorhinal Cortex: Redefinition of the Role of the Trisynaptic Pathway MARK F
    Proc. Natl. Acad. Sci. USA Vol. 87, pp. 5832-5836, August 1990 Neurobiology Feedforward excitation of the hippocampus by afferents from the entorhinal cortex: Redefinition of the role of the trisynaptic pathway MARK F. YECKEL* AND THEODORE W. BERGER*tt Departments of *Behavioral Neuroscience and tPsychiatry, University of Pittsburgh, Pittsburgh, PA Communicated by Richard F. Thompson, April 9, 1990 (received for review September 26, 1989) ABSTRACT For the past 3 decades, functional character- hippocampal cell groups (see Fig. 1). Although evidence for izations of the hippocampus have emphasized its intrinsic the functional viability of monosynaptic entorhinal input to trisynaptic circuitry, which consists of successive excitatory pyramidal neurons has been provided (9-11), the relative projections from the entorhinal cortex to the dentate gyrus, strengths ofthe monosynaptic and trisynaptic pathways have from granule cells of the dentate to the CA3/4 pyramidal cell gone untested. At least one investigation has questioned the region, and from CA3/4 to the CA1/2 pyramidal cell region. sufficiency ofmonosynaptic entorhinal input for suprathresh- Despite unequivocal anatomical evidence for a monosynaptic old activation of pyramidal neurons (5). Other studies using projection from entorhinal to CA3 and CA1/2, few in vivo the in vitro hippocampal slice have examined pyramidal cell electrophysiological studies of the direct pathway have been responses to electrical stimulation of monosynaptic afferents reported. In the experiments presented here, we stimulated within the dendritic region containing terminals of entorhinal axons of entorhinal cortical neurons in vivo and recorded axons (12). The entorhinal pathway cannot be activated evoked single unit and population spike responses in the selectively in an in vitro preparation, however, because dentate, CA3, and CAl of hippocampus, to determine if afferents from other brain regions terminate within the same pyramidal cells are driven primarily via the monosynaptic or dendritic zone (13-15).
    [Show full text]
  • Enhanced Synaptic Transmission in CA1 Hippocampus After Eyeblink Conditioning
    RAPID COMMUNICATION Enhanced Synaptic Transmission in CA1 Hippocampus After Eyeblink Conditioning JOHN M. POWER, LUCIEN T. THOMPSON, JAMES R. MOYER, JR., AND JOHN F. DISTERHOFT Department of Cell and Molecular Biology, Northwestern University Medical School, Chicago, Illinois 60611 Power, John M., Lucien T. Thompson, James R. Moyer, Jr., stimulation evoked larger summating excitatory postsynaptic and John F. Disterhoft. Enhanced synaptic transmission in CA1 potentials (EPSPs) in CA1 pyramidal neurons from condi- hippocampus after eyeblink conditioning. J. Neurophysiol. 78: tioned rabbits (LoTurco et al. 1988). [ 3H] a-amino-3-hy- 1184±1187, 1997. CA1 ®eld potentials evoked by Schaffer collat- droxy-5-methyl-4-isoxazolepropionic acid (AMPA) binding Downloaded from eral stimulation of hippocampal slices from trace-conditioned rab- in CA1, CA3, and dentate gyrus sub®elds is increased after bits were compared with those from naive and pseudoconditioned controls. Conditioned rabbits received 80 trace conditioning trials conditioning (Tocco et al. 1992). In the present study, daily until reaching a criterion of 80% conditioned responses in a Schaffer collateral evoked synaptic responses in slices from session. Hippocampal slices were prepared 1 or 24 h after reaching trace-conditioned rabbits are compared with those in naive criterion (for trace-conditioned animals) or after a ®nal unpaired and pseudoconditioned controls at intervals where maximal stimulus session (for pseudoconditioned animals); naive animals postsynaptic changes have been
    [Show full text]