Targeting specific brain cell types for gene insertion requires identifying their unique molecular signatures and inserting the gene into the regulatory region of a cell-specific gene.

“the way that you would Target one or another type of brain cell is by figuring out what are the molecular signatures of that cell so if you know that Gene a is turned out in that brain cell and not in another type of brain cell then you can insert this ELO gene into the region that's controlling G A that way it will only get turned on in in neuron uh you know that the first type of neuron”