The Niemann-Pick C Proteins and Trafficking of Cholesterol Through the Late Endosomal / Lysosomal System

Author(s): William S. Garver , Randall A. Heidenreich .

Journal Name: Current Molecular Medicine

Volume 2 , Issue 5 , 2002

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To maintain proper cellular function, the amount and distribution of cholesterol residing within cellular membranes must be regulated. The principal disorder affecting transport of cholesterol through the late endosomal / lysosomal system and intracellular cholesterol homeostasis is Niemann- Pick type C (NPC) disease. The genes responsible for NPC disease have been identified, and the encoded Niemann-Pick C1 (NPC1) and Niemann-Pick C2 (HE1 / NPC2) proteins are currently the subject of intense investigation. This review provides a detailed examination of NPC1 and HE1 / NPC2 in regulating the transport of cholesterol through the late endosomal / lysosomal system to other cellular compartments responsible for maintaining intracellular cholesterol homeostasis, and how defective function of these proteins may be responsible for the pathophysiology associated with NPC disease.

Keywords: niemann-pick type c, late endosome, npc disease, npc 1

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Article Details

Year: 2002
Page: [485 - 505]
Pages: 21
DOI: 10.2174/1566524023362375
Price: $58

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PDF: 15