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:_4 ;
    pav:version "20131211" .
  sub:_3 prov:value "Monocyte chemotactic protein-1 (MCP-1; CCL2) is a CC-chemokine that activates CCR2 on monocytes and T lymphocytes (Rose et al., 2003Go). CCR2 may play a role in COPD, as MCP-1 levels are increased in sputum, bronchoalveolar lavage, and lungs of patients with COPD (Fig. 11), and MCP-1 is expressed in alveolar macrophages, T lymphocytes, and epithelial cells (Capelli et al., 1999Go; de Boer et al., 2000Go; Traves et al., 2002Go). MCP-1 is also secreted basally by type II pneumocytes in culture, and release is stimulated by LPS but inhibited by cigarette smoke extract (Witherden et al., 2004Go). CCR2 are down-regulated via Toll-like receptors 2 and 4 and other inflammatory receptors. MCP1 is a potent chemoattractant of monocytes." ;
    prov:wasQuotedFrom pubmed:15602009 .
  sub:_4 rdfs:label "Selventa" .
  sub:assertion prov:hadPrimarySource pubmed:15602009 ;
    prov:wasDerivedFrom beldoc: , sub:_3 .
}