Assessment of chromatin state changes during human cortical interneuron development

We have used our protocol for generating cortical interneurons from human embryonic stem cells to study chromatin state changes during cortical interneuron development. This allows for the identification of cis-regulatory elements and transcription factors which play important roles in this process. Samples were collected at day 0 (hESCs), day 15 (ventral telencephalic patterned medial ganglionic eminence-like (MGE) progenitors), day 35 (immature interneurons), and day 60 (mature interneurons). Day 15 dorsal telencephalic cortical-like neural progenitors were also obtained by using a dual Smad inhibition protocol for comparison with ventral telencephalic MGE-like progenitors. For each time point and histone modification (H3K27ac, H3K4me3, H3K27me3 and H3K9me3), 3-6 biological replicates were generated from independant differentiations of hESCs