Jump to main content
Jump to site search

Issue 21, 2011
Previous Article Next Article

Axon diodes for the reconstruction of oriented neuronal networks in microfluidic chambers

Author affiliations

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.

Graphical abstract: Axon diodes for the reconstruction of oriented neuronal networks in microfluidic chambers

Back to tab navigation

Supplementary files

Publication details

The article was received on 09 Jan 2011, accepted on 31 May 2011 and first published on 15 Sep 2011


Article type: Paper
DOI: 10.1039/C1LC20014C
Citation: Lab Chip, 2011,11, 3663-3673
  •   Request permissions

    Axon diodes for the reconstruction of oriented neuronal networks in microfluidic chambers

    J. Peyrin, B. Deleglise, L. Saias, M. Vignes, P. Gougis, S. Magnifico, S. Betuing, M. Pietri, J. Caboche, P. Vanhoutte, J. Viovy and B. Brugg, Lab Chip, 2011, 11, 3663
    DOI: 10.1039/C1LC20014C

Search articles by author

Spotlight

Advertisements