Chunk #29 — Results — Organoids derived from schizophrenia iPSCs—dispersion of proliferating cells in the cortex and blockade of cortical neuronal development
control iPSC organoids, similar to hESC organoids, contained 2–3 layers of proliferating Ki67+ NPCs in the VZ, few Ki67+ cells in the IZ, and none or only single proliferating cells in the CZ. These layers were already observed at week 2 (Fig. 2a) and were further developed at week 5 (Fig. 2b). In contrast, in the 2-week schizophrenia organoids, only one layer of Ki67+ cells was typically present and there were no distinct palisades of proliferating cells surrounding the VZ lumens observed. Instead, the Ki67+ cells were strikingly dispersed in the IZ, as well as in the CZ (Fig. 2a).