NCIt definition : A heterodimeric or heterotetrameric protein complex comprised of protein S100A8 and
protein S100A9. This complex is expressed in the cytosol of neutrophils and macrophages
and plays a role in multiple host defense related processes including immunomodulation,
neutrophil chemotaxis and both antibacterial and antifungal responses.;
NCIt note : Elevated levels of calprotectin may be associated with chronic inflammatory diseases.;