DKK1 Suppresses Hippo Signaling Via PIP3–OGT–LRP6 O-GlcNAcylation in Hepatocellular Carcinoma Ukjin Lee,Jung Woo Eun, Taehee Kim, Hyewon Shim, Yunho Choi,Hyeryeon Jung, Jaewoo Mo,Soon Sun Kim, Geum Ok Baek,Moon Gyeong Yoon, Hyeyoon Lee,Wonhwa Lee,Wantae Kim,Junil Kim,Eugene C Yi,Seung Up Kim,Jae Youn Cheong,Eek-Hoon Jho