Lipoprotein lipase inhibitor or LPL inhibitor is one of the important topics to know if you are a med student. By now most of you might have heard that APO-CII is an LPL activator. But what about LPL inhibitor?
Which of the following is an LPL inhibitor?
Correct answer : c. Apo C-III
Wikipedia has a good description of the interaction of lipoprotein lipases (LPL) . While LPL is activated by ApoC-II, it is inhibited by ApoCIII. Lipoprotein lipase (LPL) belongs to the lipase gene family, which contains pancreatic lipase, hepatic lipase and endothelial lipase as few types.
Apolipoprotein C-III also known as apo-CIII is made by the APOC3 gene in humas. It inhibits both lipoprotein lipase as well as hepatic lipase.
ApoC-III is produced in liver, intestine, inhibits LPL activity and lipoprotein binding to receptors. Reduction in LPL activity often contributes to the dyslipidemia.