| http://purl.uniprot.org/citations/17137774 | http://www.w3.org/1999/02/22-rdf-syntax-ns#type | http://purl.uniprot.org/core/Journal_Citation |
| http://purl.uniprot.org/citations/17137774 | http://www.w3.org/2000/01/rdf-schema#comment | "We recently reported that laminin-5, expressed by human mesenchymal stem cells (hMSC), stimulates osteogenic gene expression in these cells in the absence of any other osteogenic stimulus. Here we employ two-dimensional liquid chromatography and tandem mass spectrometry, along with the Database for Annotation, Visualization and Integrated Discovery (DAVID), to obtain a more comprehensive profile of the protein (and hence gene) expression changes occurring during laminin-5-induced osteogenesis of hMSC. Specifically, we compare the protein expression profiles of undifferentiated hMSC, hMSC cultured on laminin-5 (Ln-5 hMSC), and fully differentiated human osteoblasts (hOST) with profiles from hMSC treated with well-established osteogenic stimuli (collagen I, vitronectin, or dexamethazone). We find a marked reduction in the number of proteins (e.g., those involved with calcium signaling and cellular metabolism) expressed in Ln-5 hMSC compared to hMSC, consistent with our previous finding that hOST express far fewer proteins than do their hMSC progenitors, a pattern we call "osteogenic gene focusing." This focused set, which resembles an intermediate stage between hMSC and mature hOST, mirrors the expression profiles of hMSC exposed to established osteogenic stimuli and includes osteogenic extracellular matrix proteins (collagen, vitronectin) and their integrin receptors, calcium signaling proteins, and enzymes involved in lipid metabolism. These results provide direct evidence that laminin-5 alone stimulates global changes in gene/protein expression in hMSC that lead to commitment of these cells to the osteogenic phenotype, and that this commitment correlates with extracellular matrix production."xsd:string |
| http://purl.uniprot.org/citations/17137774 | http://purl.org/dc/terms/identifier | "doi:10.1016/j.matbio.2006.10.001"xsd:string |
| http://purl.uniprot.org/citations/17137774 | http://purl.uniprot.org/core/author | "Bennett K."xsd:string |
| http://purl.uniprot.org/citations/17137774 | http://purl.uniprot.org/core/author | "Klees R.F."xsd:string |
| http://purl.uniprot.org/citations/17137774 | http://purl.uniprot.org/core/author | "Plopper G.E."xsd:string |
| http://purl.uniprot.org/citations/17137774 | http://purl.uniprot.org/core/author | "Salasznyk R.M."xsd:string |
| http://purl.uniprot.org/citations/17137774 | http://purl.uniprot.org/core/author | "Vandenberg S."xsd:string |
| http://purl.uniprot.org/citations/17137774 | http://purl.uniprot.org/core/date | "2007"xsd:gYear |
| http://purl.uniprot.org/citations/17137774 | http://purl.uniprot.org/core/name | "Matrix Biol"xsd:string |
| http://purl.uniprot.org/citations/17137774 | http://purl.uniprot.org/core/pages | "106-114"xsd:string |
| http://purl.uniprot.org/citations/17137774 | http://purl.uniprot.org/core/title | "Laminin-5 activates extracellular matrix production and osteogenic gene focusing in human mesenchymal stem cells."xsd:string |
| http://purl.uniprot.org/citations/17137774 | http://purl.uniprot.org/core/volume | "26"xsd:string |
| http://purl.uniprot.org/citations/17137774 | http://www.w3.org/2004/02/skos/core#exactMatch | http://purl.uniprot.org/pubmed/17137774 |
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