PMID- 17889654 OWN - NLM STAT- MEDLINE DCOM- 20071101 LR - 20211203 IS - 0092-8674 (Print) IS - 1097-4172 (Electronic) IS - 0092-8674 (Linking) VI - 130 IP - 6 DP - 2007 Sep 21 TI - Elucidation of a universal size-control mechanism in Drosophila and mammals. PG - 1120-33 AB - Coordination of cell proliferation and cell death is essential to attain proper organ size during development and for maintaining tissue homeostasis throughout postnatal life. In Drosophila, these two processes are orchestrated by the Hippo kinase cascade, a growth-suppressive pathway that ultimately antagonizes the transcriptional coactivator Yorkie (Yki). Here we demonstrate that a single phosphorylation site in Yki mediates the growth-suppressive output of the Hippo pathway. Hippo-mediated phosphorylation inactivates Yki by excluding it from the nucleus, whereas loss of Hippo signaling leads to nuclear accumulation and therefore increased Yki activity. We further delineate a mammalian Hippo signaling pathway that culminates in the phosphorylation of YAP, the mammalian homolog of Yki. Using a conditional YAP transgenic mouse model, we demonstrate that the mammalian Hippo pathway is a potent regulator of organ size, and that its dysregulation leads to tumorigenesis. These results uncover a universal size-control mechanism in metazoan. FAU - Dong, Jixin AU - Dong J AD - Department of Molecular Biology and Genetics, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA. FAU - Feldmann, Georg AU - Feldmann G FAU - Huang, Jianbin AU - Huang J FAU - Wu, Shian AU - Wu S FAU - Zhang, Nailing AU - Zhang N FAU - Comerford, Sarah A AU - Comerford SA FAU - Gayyed, Mariana F AU - Gayyed MF FAU - Anders, Robert A AU - Anders RA FAU - Maitra, Anirban AU - Maitra A FAU - Pan, Duojia AU - Pan D LA - eng GR - R01 CA113669-01/CA/NCI NIH HHS/United States GR - K08 DK067187/DK/NIDDK NIH HHS/United States GR - R01 CA113669-04/CA/NCI NIH HHS/United States GR - R01CA113669/CA/NCI NIH HHS/United States GR - R01 CA113669-02/CA/NCI NIH HHS/United States GR - DK067187/DK/NIDDK NIH HHS/United States GR - EY015708/EY/NEI NIH HHS/United States GR - R01 CA113669-05/CA/NCI NIH HHS/United States GR - R21DK072532/DK/NIDDK NIH HHS/United States GR - R21 DK072532/DK/NIDDK NIH HHS/United States GR - R01 CA113669-03/CA/NCI NIH HHS/United States GR - R01 EY015708/EY/NEI NIH HHS/United States GR - R01 CA113669/CA/NCI NIH HHS/United States GR - R01 DK081417/DK/NIDDK NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PL - United States TA - Cell JT - Cell JID - 0413066 RN - 0 (Adaptor Proteins, Signal Transducing) RN - 0 (Cell Cycle Proteins) RN - 0 (Drosophila Proteins) RN - 0 (Intracellular Signaling Peptides and Proteins) RN - 0 (LAT2 protein, human) RN - 0 (Large Neutral Amino Acid-Transporter 1) RN - 0 (Nuclear Proteins) RN - 0 (SAV1 protein, human) RN - 0 (Trans-Activators) RN - 0 (Transcription Factors) RN - 0 (YAP-Signaling Proteins) RN - 0 (YY1AP1 protein, human) RN - 0 (Yki protein, Drosophila) RN - 452VLY9402 (Serine) RN - 80168379AG (Doxorubicin) RN - EC 2.7.- (Protein Kinases) RN - EC 2.7.1.- (wts protein, Drosophila) RN - EC 2.7.1.11 (STK4 protein, human) RN - EC 2.7.11.1 (Protein Serine-Threonine Kinases) RN - EC 2.7.11.1 (STK3 protein, human) RN - EC 2.7.11.1 (Serine-Threonine Kinase 3) RN - EC 2.7.11.1 (hpo protein, Drosophila) SB - IM MH - Active Transport, Cell Nucleus MH - Adaptor Proteins, Signal Transducing/metabolism MH - Animals MH - *Apoptosis MH - Cell Cycle Proteins/metabolism MH - Cell Line MH - Cell Nucleus/metabolism MH - *Cell Proliferation MH - Cytoplasm/metabolism MH - Doxorubicin MH - Drosophila/cytology/enzymology/genetics/*growth & development/metabolism MH - Drosophila Proteins/genetics/*metabolism MH - Homeostasis MH - Humans MH - Intracellular Signaling Peptides and Proteins MH - Large Neutral Amino Acid-Transporter 1/metabolism MH - Liver Neoplasms, Experimental/chemically induced/enzymology/metabolism/pathology MH - Mammals/*growth & development/metabolism MH - Mice MH - Mice, Inbred C57BL MH - Mice, Transgenic MH - Mutation MH - Nuclear Proteins/genetics/*metabolism MH - Organ Size MH - Phosphorylation MH - Protein Kinases/metabolism MH - Protein Serine-Threonine Kinases/genetics/*metabolism MH - Serine/metabolism MH - Serine-Threonine Kinase 3 MH - *Signal Transduction MH - Trans-Activators/genetics/*metabolism MH - Transcription Factors/genetics/*metabolism MH - Transfection MH - YAP-Signaling Proteins PMC - PMC2666353 MID - NIHMS97880 EDAT- 2007/09/25 09:00 MHDA- 2007/11/02 09:00 PMCR- 2009/04/07 CRDT- 2007/09/25 09:00 PHST- 2007/04/02 00:00 [received] PHST- 2007/06/11 00:00 [revised] PHST- 2007/07/16 00:00 [accepted] PHST- 2007/09/25 09:00 [pubmed] PHST- 2007/11/02 09:00 [medline] PHST- 2007/09/25 09:00 [entrez] PHST- 2009/04/07 00:00 [pmc-release] AID - S0092-8674(07)00956-7 [pii] AID - 10.1016/j.cell.2007.07.019 [doi] PST - ppublish SO - Cell. 2007 Sep 21;130(6):1120-33. doi: 10.1016/j.cell.2007.07.019.