# OnCo record tumour-marker (term). Data CC BY-NC 4.0, attribute "Data from OnCo (onco.cc)". Whole corpus: https://onco.cc/api/v1/onco.nt
@prefix schema: <https://schema.org/> .
@prefix onco: <https://onco.cc/ns#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://onco.cc/terms/tumour-marker/>
  a schema:DefinedTerm ;
  onco:kind "term" ;
  schema:identifier "tumour-marker" ;
  schema:name "Tumour marker"@en ;
  schema:alternateName "tumour markers"@en, "tumor marker"@en, "tumor markers"@en, "serum marker"@en, "serum markers"@en, "blood marker"@en, "blood markers"@en, "PSA"@en, "CA-125"@en, "CA125"@en, "CEA"@en, "CA 19-9"@en, "CA19-9"@en, "AFP"@en, "LDH"@en ;
  schema:description "A substance, usually a protein, that a tumour releases into the blood in measurable amounts. Rising or falling levels track whether the cancer is growing or responding, though they are rarely good enough for diagnosis on their own."@en ;
  schema:url <https://onco.cc/terms/tumour-marker/> ;
  schema:dateModified "2026-09-09"^^xsd:date ;
  schema:sameAs <https://en.wikipedia.org/wiki/Tumor_marker> ;
  owl:sameAs <http://www.wikidata.org/entity/Q584992> ;
  schema:citation <https://en.wikipedia.org/wiki/Tumor_marker> ;
  onco:related <https://onco.cc/terms/biomarker/>, <https://onco.cc/terms/ctdna/>, <https://onco.cc/terms/screening/>, <https://onco.cc/terms/early-detection-term/>, <https://onco.cc/terms/progression/> ;
  onco:cancers <https://onco.cc/cancers/prostate/>, <https://onco.cc/cancers/ovarian/>, <https://onco.cc/cancers/colorectal/>, <https://onco.cc/cancers/pancreatic/>, <https://onco.cc/cancers/hcc/> ;
  onco:technologies <https://onco.cc/technologies/liquid-biopsy/> .