Wnt signaling: multivesicular bodies hold GSK3 captive.

Niehrs, Christof; Acebron, Sergio P · Cell · 2010

basic_science · Level V

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Abstract

Two key events in Wnt signal transduction, receptor endocytosis and inactivation of Glycogen Synthase Kinase 3 (GSK3), remain incompletely understood. Taelman et al. (2010) discover that Wnt signaling inactivates GSK3 by sequestering the enzyme in multivesicular bodies, thus linking these two events and providing a new framework for understanding Wnt signaling.