Figure 3: FACS enriches for neuronal populations.

(a) Gating strategy used for neuronal cell sorting. Live cells as determined by FSC/SSC gating were selected for CD184-APC-negative/low surface expression and subsequently separated for CD24-PE versus CD15/CD29/CD44 expression, detected in the FITC channel as indicated in the dot plots. Post-sort reanalysis shows representative samples of both fractions immediately after FACS enrichment, which were then plated for comparative in vitro analysis (phase contrast images. Bars, 50 μm). (b,c) Immunocytochemistry at DIV2 post-sort for TH (green) and the neuronal marker MAP2 (red) performed on the neuronal (b) and mixed (c) populations of a representative control and GBA-PD line. Nuclei were counterstained with Hoechst (blue). FACS enriches for both TH and neuronal marker positivity in the neuronal population compared with the non-neuronal population. (Bars, 50 μm.)