title: Mst out and HCC in.
abstract: Mst1 and Mst2 are key components of the Hippo tumor suppressor pathway. In this issue, Zhou et al. (2009) reported that Mst1/2 ablation leads to hepatocellular carcinomas. Unexpectedly, Mst1/2 may activate another kinase besides Lats1 and Lats2 to phosphorylate YAP, and the role of Mst1/2 in YAP regulation is cell type dependent.
authors.affiliation: Department of Pharmacology and Moores Cancer Center, University of California at San Diego, La Jolla, CA 92093-0815, USA.
authors.forename: Bin
authors.initials: B
authors.lastname: Zhao
authors.forename: Qunying
authors.initials: Q
authors.lastname: Lei
authors.forename: Kun-Liang
authors.initials: KL
authors.lastname: Guan
mesh_terms: D000818:Animals; D008114:Liver Neoplasms, Experimental / Q000201:enzymology* / Q000235:genetics; D051379:Mice; D018345:Mice, Knockout; D017346:Protein Serine-Threonine Kinases / Q000172:deficiency* / Q000235:genetics; D000090742:Serine-Threonine Kinase 3; D000099317:Hippo Kinases
chemical_list: D017346:Protein Serine-Threonine Kinases; D000090742:Serine-Threonine Kinase 3; C490660:Stk4 protein, mouse; D000099317:Hippo Kinases; C490818:Stk3 protein, mouse