Scientists Identify Liver Protein That Acts as a Cholesterol Control Switch
Researchers at UT Southwestern have uncovered a previously unknown mechanism in the liver that helps regulate cholesterol levels in the bloodstream.
The team discovered a protein called HELZ2 that functions as a kind of master switch. By shutting down the genetic instructions needed to produce apoB—a critical building block of cholesterol-carrying particles—this protein influences how much harmful cholesterol enters the bloodstream.
Elevated levels of apoB-containing lipoproteins are strongly associated with atherosclerosis and cardiovascular disease. Understanding how HELZ2 works could open new avenues for developing treatments that target this pathway.
The findings add to the growing understanding of liver function in lipid metabolism and may eventually contribute to more precise approaches for managing heart health.