Upon cell reprogramming of somatic skin cells (fibroblasts) into induced pluripotent stem cells (iPSC), we generated DAn from patients with sporadic PD (sPD) (90‐95% of cases) and patients with a less frequent familial form caused by mutations in the gene LRRK2 (L2PD). The gene discussed is LRRK2; the disease is Platelet storage pool disease.