Article (Scientific journals)
Subcellular Patch-clamp Recordings from the Somatodendritic Domain of Nigral Dopamine Neurons.
Engel, Dominique
2016In Journal of Visualized Experiments, 117
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Keywords :
dendrite; dopamine neuron; substantia nigra; patch-clamp; dual recordings; cell-attached
Abstract :
[en] Dendrites of dopaminergic neurons receive and convey synaptic input, support action potential back-propagation and neurotransmitter release. Understanding these fundamental functions will shed light on the information transfer in these neurons. Dendritic patch-clamp recordings provide the possibility to directly examine the electrical properties of dendrites and underlying voltage-gated ion channels. However, these fine structures are not easily accessible to patch pipettes because of their small diameter. This report describes a step-by-step procedure to collect stable and reliable recordings from the dendrites of dopaminergic neurons in acute slices. Electrophysiological measurements are combined with post hoc recovery of cell morphology. Successful experiments rely on improved preparation of slices, solutions and pipettes, adequate adjustment of the optics and stability of the pipette in contact with the recorded structure. Standard principles of somatic patch-clamp recording are applied to dendrites but with a gentler approach of the pipette. These versatile techniques can be implemented to address various questions concerning the excitable properties of dendrites.
Research Center/Unit :
Laboratory of Neurophysiology, GIGA-Neurosciences
Disciplines :
Life sciences: Multidisciplinary, general & others
Author, co-author :
Engel, Dominique  ;  Université de Liège > Département des sciences biomédicales et précliniques > Pharmacologie
Language :
English
Title :
Subcellular Patch-clamp Recordings from the Somatodendritic Domain of Nigral Dopamine Neurons.
Publication date :
02 November 2016
Journal title :
Journal of Visualized Experiments
eISSN :
1940-087X
Publisher :
MYJoVE Corporation, Boston, United States - Massachusetts
Volume :
117
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique
Funding text :
This work was supported by grants from the Belgian F.R.S. - FNRS (U.N002.13 and T.N0015.13) and published with the support of the Belgian University Foundation (Publié avec le concours de la Fondation Universitaire de Belgique).
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