Lipins: Linking phospholipid biosynthesis to organelle biogenesis

Every cell in the body relies on a family of enzymes called lipins to build the fatty membranes that wrap its internal compartments. These membranes are not just passive bags—their lipid composition controls how organelles change shape, communicate, and send chemical signals. Lipins also help produce triglycerides, the main energy stores in fat cells, and mutations in these enzymes are known to disrupt fat metabolism. Yet scientists do not fully understand how lipins coordinate lipid production with the construction of new membranes and organelles. This project aims to map that link, using experiments from yeast to human cells. If successful, it will reveal a fundamental mechanism of cell biology that connects basic fat chemistry to organelle structure. This is fundamental science with no immediate clinical application. However, a clearer picture of how lipins control lipid balance could eventually inform understanding of metabolic disorders such as obesity and lipodystrophy, where fat storage and membrane function go awry. Past discoveries in lipid enzymology have already led to drugs for high cholesterol; this work could lay similar groundwork.