Patchliner, SyncroPatch 384PE (a predecessor model of the SyncroPatch 384i) and SURFE2R N1 application note: (0.5 MB)
Cells were kindly provided by FUJIFILM Cellular Dynamics, Inc.
Human neurons derived from induced pluripotent stem cells (hiPSCs) are becoming increasingly important for studying basic neuronal physiology and can provide good models for studying neurological disorders. hiPSC derived neurons provide a viable alternative to primary cells and animal models in the drug discovery industry for finding novel therapeutics to treat seizure-related and neurodegenerative disorders. iCell® GlutaNeurons are glutamatergic-enriched cortical neurons derived from hiPSCs. Single cell gene transcription analysis has shown the presence of glutamate receptors: AMPA, kainate and NMDA, as well as glutamate and GABA transporters. Ionotropic glutamate receptors mediate the majority of excitatory neurotransmission in the mammalian CNS and removal of glutamate from the synaptic cleft by reuptake via glutamate transporters plays a role in regulating neuronal excitability. GABA is the major inhibitory neurotransmitter in the brain and is important in controlling excitability. After release, GABA is removed from the extracellular space by GABA transporters(GATs), thus terminating inhibitory synaptic transmission. Both GABA and glutamate transporters may provide novel therapeutic targets for, e.g. Parkinson’s disease, Alzheimer’s disease, and epilepsy.
We recorded ligand-gated ion channel currents mediated by GABAA and AMPA receptors from iCell® GlutaNeurons on the Patchliner and SyncroPatch 384PE. Furthermore, we could measure GABA and glutamate transporters in these neurons using the SURFE2R N1 device.