Dysregulation of Caveolin-1 (CAV1), a key component of caveolae, leads to pleiotropic disorders; yet, the mechanisms controlling its trafficking remain unclear. Here, we show that the lipid droplet (LD) biogenesis factor seipin controls CAV1 localization. Seipin deficiency in mice and HeLa cells ...

Lipid droplet (LD) growth mechanisms and the roles of LD-associated lipid transfer proteins remain poorly understood. Here, we show that the autophagy lipid transfer protein ATG2A has an anabolic role and promotes LD expansion by transferring diacylglycerol (DAG), and potentially triacylglycerol ...