Generation of a CHIP isogenic human iPSC-derived cortical neuron model for functional proteomics

This protocol describes the production of gene-edited cells using CRISPR-Cas9 and a patient-derived induced pluripotent stem cell (iPSC) line. Biolaminin 521 was used as the matrix to improve single cell survival and pluripotency. The resulting panel of iPSC lines was differentiated into cortical neurons with the Biolaminin 111 culture matrix. The overall aim was to identify protein and pathway targets for the neuroprotective E3-ubiquitin ligase CHIP, which is important in healthy brain aging. The protocol can be adapted to other proteins and pluripotent stem cell lines.