Figure 1.
Optopatch Reports Firing Patterns of iPSC-Derived Motor Neurons in a Model of ALS
(A) Pipeline for disease modeling with optical electrophysiology.
(B) Timeline of motor neuron differentiation, gene transduction, maturation, and measurement.
(C) Top: domain structure of Optopatch constructs. Bottom: images of an iPSC-derived motor neuron expressing both CheRiff-EGFP and QuasAr2-mOrange2.
(D) Simultaneous fluorescence and patch-clamp recordings of spiking in iPSC-derived motor neurons under optical stimulation. Left: images from mutant and genome-corrected controls. Right: fluorescence (red, black) and voltage (blue). Illumination protocols are shown above.
All scale bars, 10 μm. See also Figure S1.