NPC1 is required for postnatal islet β cell differentiation by maintaining mitochondria turnover.

NPC1 is a protein localized on the lysosome membrane regulating intracellular cholesterol transportation and maintaining normal lysosome function. GWAS studies have found that variants in T2D was a pancreatic islet expression quantitative trait locus, suggesting a potential role of NPC1 in T2D islet pathophysiology. Two-week-old mice and wild type littermates were employed to examine pancreatic β cell morphology and functional changes induced by loss of .