Overlapping Yet Distinct Functions of Vacuole Membrane Protein 1 and Transmembrane Protein 41B in Modulating Hepatic Lipoprotein Secretion and Autophagy | Synapse
March 3, 2026Open Access
Overlapping Yet Distinct Functions of Vacuole Membrane Protein 1 and Transmembrane Protein 41B in Modulating Hepatic Lipoprotein Secretion and Autophagy
Key Points
Losing either VMP1 or TMEM41B significantly reduces VLDL secretion, impacting liver function directly.
The reduction in lipoprotein secretion is linked with an increase in MASLD severity, highlighting metabolic implications.
Assessment focuses on both proteins' effects on autophagy, noting their overlapping yet unique mechanisms.
These findings underscore the necessity of VMP1 and TMEM41B for maintaining healthy lipoprotein secretion and autophagy.
Abstract
Loss of hepatic VMP1 or TMEM41B reduces VLDL secretion and promotes MASLD via overlapping but distinct mechanisms that regulate lipoprotein secretion and autophagy.