PMP22 and Charcot-Marie-Tooth disease: In the case of Charcot-Marie-Tooth disease, models of hiPSCs-derived motor neurons have been established for different forms associated to different genes, such as NELF, MFN2 [29,30], HSPB1 [30,31], but also hiPSCs-derived Schwann cells presenting the PMP22 duplication [32].