Calcium at the crossroads: TPC2's role in LRRK2-linked Parkinson's disease.

The pathogenic mechanisms of LRRK2 are hotly debated but regulation of lysosomal homeostasis has emerged as a leading focus area. In recent work, Gregori et al. show that Ca2+ release through the lysosomal Two-Pore Channel 2 (TPC2) could be a significant contributor to dopaminergic neuron vulnerability.