PMID- 17952115 OWN - NLM STAT- MEDLINE DCOM- 20080429 LR - 20201209 IS - 1476-5594 (Electronic) IS - 0950-9232 (Linking) VI - 27 IP - 15 DP - 2008 Apr 3 TI - Regulation of c-met expression by transcription repressor Daxx. PG - 2177-86 AB - The protooncogene c-met encodes the tyrosine kinase receptor for the hepatocyte growth factor/scatter factor (HGF/SF). While overexpression of c-met is documented in many types of tumors, the mechanism of c-met regulation remains elusive. Here, we demonstrate Daxx as a repressor of c-met transcription. The expression of c-met is elevated in Daxx knockout mouse cells and is reversed by Daxx reconstitution. C-met promoter analysis of Daxx-/- cells reveled changes in chromatin acetylation, but not in DNA methylation. Daxx binds to the mouse c-met promoter and Daxx-binding region is sufficient for transcription repression, while HDAC2 is associated with c-met promoter mostly in Daxx+/+ cells, pointing to Daxx-dependent HDAC2 recruitment as a potential mechanism of c-met repression. HGF-induced cell mobility and invasion confirmed augmented activity of c-Met/HGF pathway in Daxx-/- cells. Finally, inverse correlation between Daxx and c-Met in cancer cell lines and in metastatic breast cancer specimens suggests potential function of Daxx as a c-met repressor during cancer progression. FAU - Morozov, V M AU - Morozov VM AD - Department of Anatomy & Cell Biology and Shands Cancer Center, University of Florida, Gainesville, FL, USA. FAU - Massoll, N A AU - Massoll NA FAU - Vladimirova, O V AU - Vladimirova OV FAU - Maul, G G AU - Maul GG FAU - Ishov, A M AU - Ishov AM LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20071022 PL - England TA - Oncogene JT - Oncogene JID - 8711562 RN - 0 (Carrier Proteins) RN - 0 (Chromatin) RN - 0 (Co-Repressor Proteins) RN - 0 (Daxx protein, mouse) RN - 0 (Intracellular Signaling Peptides and Proteins) RN - 0 (Molecular Chaperones) RN - 0 (Nuclear Proteins) RN - 0 (Repressor Proteins) RN - EC 2.7.10.1 (Proto-Oncogene Proteins c-met) RN - EC 3.5.1.98 (Hdac2 protein, mouse) RN - EC 3.5.1.98 (Histone Deacetylase 2) RN - EC 3.5.1.98 (Histone Deacetylases) SB - IM MH - Animals MH - Breast Neoplasms/genetics/metabolism MH - Carcinoma/genetics/metabolism MH - Carrier Proteins/genetics/metabolism/*physiology MH - Cell Movement/genetics MH - Chromatin/metabolism MH - Co-Repressor Proteins MH - DNA Methylation MH - Disease Progression MH - Down-Regulation MH - *Gene Expression Regulation MH - Histone Deacetylase 2 MH - Histone Deacetylases/metabolism MH - Humans MH - Intracellular Signaling Peptides and Proteins/genetics/metabolism/*physiology MH - Mice MH - Mice, Knockout MH - Molecular Chaperones MH - Nuclear Proteins/genetics/metabolism/*physiology MH - Promoter Regions, Genetic MH - Protein Binding MH - Proto-Oncogene Proteins c-met/*genetics MH - Repressor Proteins/genetics/metabolism/physiology MH - Sequence Deletion MH - Tumor Cells, Cultured MH - Wound Healing/genetics EDAT- 2007/10/24 09:00 MHDA- 2008/04/30 09:00 CRDT- 2007/10/24 09:00 PHST- 2007/10/24 09:00 [pubmed] PHST- 2008/04/30 09:00 [medline] PHST- 2007/10/24 09:00 [entrez] AID - 1210865 [pii] AID - 10.1038/sj.onc.1210865 [doi] PST - ppublish SO - Oncogene. 2008 Apr 3;27(15):2177-86. doi: 10.1038/sj.onc.1210865. Epub 2007 Oct 22.