sub:provenance { beldoc:dce:description "Approximately 61,000 statements." ; dce:rights "Copyright (c) 2011-2012, Selventa. All rights reserved." ; dce:title "BEL Framework Large Corpus Document" ; pav:authoredBysub:_5 ; pav:version "1.4" . sub:_4prov:value "IGF-1 receptor signaling when blocked with anti IGF-1R alpha neutralizing antibody, and when, either the 2.6 kb or the 0.35 kb VPF/VEGF reporter construct was transfected into AsPC-1 cells. The reporter activity of the 2.6 kb VPF/VEGF promoter showed a 50% decrease, and the 0.35kb VPF/VEGF promoter (mainly Sp1 binding sites) showed a 40% decrease compared with that of the IgG control. These results suggested that in AsPC-1 cells, the IGF-1 receptor signaling promotes VPF/VEGF expression mainly through transcriptional regulation, where the transcription factor Sp1 plays an important role." ; prov:wasQuotedFrompubmed:14604996 . sub:_5rdfs:label "Selventa" . sub:assertionprov:hadPrimarySourcepubmed:14604996 ; prov:wasDerivedFrombeldoc: , sub:_4 . }