Axon diodes for the reconstruction of oriented neuronal networks in microfluidic chambers.
Identifieur interne : 001616 ( Main/Curation ); précédent : 001615; suivant : 001617Axon diodes for the reconstruction of oriented neuronal networks in microfluidic chambers.
Auteurs : Jean-Michel Peyrin [France] ; Bérangère Deleglise ; Laure Saias ; Maéva Vignes ; Paul Gougis ; Sebastien Magnifico ; Sandrine Betuing ; Mathéa Pietri ; Jocelyne Caboche ; Peter Vanhoutte ; Jean-Louis Viovy ; Bernard BruggSource :
- Lab on a chip [ 1473-0189 ] ; 2011.
English descriptors
- KwdEn :
- Aniline Compounds (chemistry), Animals, Axons (physiology), Calcium (metabolism), Cell Differentiation, Cells, Cultured, Extracellular Signal-Regulated MAP Kinases (metabolism), Mice, Mice, Transgenic, Microfluidic Analytical Techniques, Nerve Net (cytology), Nerve Net (metabolism), Nerve Net (physiology), Neurons (cytology), Neurons (metabolism), Xanthenes (chemistry).
- MESH :
- chemical , chemistry : Aniline Compounds, Xanthenes.
- chemical , metabolism : Calcium, Extracellular Signal-Regulated MAP Kinases.
- cytology : Nerve Net, Neurons.
- metabolism : Nerve Net, Neurons.
- physiology : Axons, Nerve Net.
- Animals, Cell Differentiation, Cells, Cultured, Mice, Mice, Transgenic, Microfluidic Analytical Techniques.
Abstract
Various experimental models are used to study brain development and degeneration. They range from whole animal models, which preserve anatomical structures but strongly limit investigations at the cellular level, to dissociated cell culture systems that allow detailed observation of cell phenotypes but lack the highly ordered physiological neuron connection architecture. We describe here a platform comprising independent cell culture chambers separated by an array of "axonal diodes". This array involves asymmetric micro-channels, imposing unidirectional axon connectivity with 97% selectivity. It allows the construction of complex, oriented neuronal networks not feasible with earlier platforms. Different neuronal subtypes could be co-cultivated for weeks, and sequential seeding of different cell populations reproduced physiological network development. To illustrate possible applications, we created and characterized a cortico-striatal oriented network. Functional synaptic connections were established. The activation of striatal differentiation by cortical axons, and the synchronization of neural activity were demonstrated. Each neuronal population and subcompartment could be chemically addressed individually. The directionality of neural pathways being a key feature of the nervous system organization, the axon diode concept brings in a paradigmatic change in neuronal culture platforms, with potential applications for studying neuronal development, synaptic transmission and neurodegenerative disorder such as Alzheimer and Parkinson diseases at the sub-cellular, cellular and network levels.
DOI: 10.1039/c1lc20014c
PubMed: 21922081
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pubmed:21922081Le document en format XML
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<front><div type="abstract" xml:lang="en">Various experimental models are used to study brain development and degeneration. They range from whole animal models, which preserve anatomical structures but strongly limit investigations at the cellular level, to dissociated cell culture systems that allow detailed observation of cell phenotypes but lack the highly ordered physiological neuron connection architecture. We describe here a platform comprising independent cell culture chambers separated by an array of "axonal diodes". This array involves asymmetric micro-channels, imposing unidirectional axon connectivity with 97% selectivity. It allows the construction of complex, oriented neuronal networks not feasible with earlier platforms. Different neuronal subtypes could be co-cultivated for weeks, and sequential seeding of different cell populations reproduced physiological network development. To illustrate possible applications, we created and characterized a cortico-striatal oriented network. Functional synaptic connections were established. The activation of striatal differentiation by cortical axons, and the synchronization of neural activity were demonstrated. Each neuronal population and subcompartment could be chemically addressed individually. The directionality of neural pathways being a key feature of the nervous system organization, the axon diode concept brings in a paradigmatic change in neuronal culture platforms, with potential applications for studying neuronal development, synaptic transmission and neurodegenerative disorder such as Alzheimer and Parkinson diseases at the sub-cellular, cellular and network levels.</div>
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