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:authoredBy sub:_7 ;
    pav:version "20131211" .
  sub:_6 prov:value "Both uPA itself and uPA-generated plasmin can activate the latent matrix metalloproteinases and elastase [46, 148], which are responsible for the subsequent degradation of the extracellular matrix, during the endothelial cell migration and invasion. Moreover these two proteases activate virtually all growth factors involved in angiogenesis [42-45, 147, 149]. Hypoxia has been shown to increase the expression of angiogenic growth factors, but uPA and plasmin are required to provide proteolytic activation of the latent forms or release of matrix-bound growth factors." ;
    prov:wasQuotedFrom pubmed:11841347 .
  sub:_7 rdfs:label "Selventa" .
  sub:assertion prov:hadPrimarySource pubmed:11841347 ;
    prov:wasDerivedFrom beldoc: , sub:_6 .
}