Niemann–Pick type C (NPC) disease is a fatal lipid-storage disorder caused by a 'lipid traffic jam' in late endosomes and lysosomes. A recent study indicates that overexpression of the vesicular transport proteins Rab7 or Rab9 increases the flow of traffic, allowing accumulated lipids to leave the endosomes and reach the Golgi apparatus and endoplasmic reticulum.
- Martin O. Bergo
- Stephen G. Young