In addition, decreased GCase activity has been described in G2010S LRRK2-PD fibroblasts and iPSC-derived neurons, which was corrected upon LRRK2 kinase inhibitor application or Rab10 expression, and was mimicked upon knockdown of Rab10 (Ysselstein et al., 2019). Here, RAB10 is linked to Parkinson disease.