Calprotectin
Calprotectin (synonyms: calgranulin A/B, human leukocyte protein; L1 protein; MRP-8/14; S-100a and b; cystic fibrosis antigen, CFA) is a cellular component of neutrophil granulocytes (defense cells) that is considered a marker of granulocyte migration into the lumen of the intestine as part of an inflammatory process. Lower concentrations of calprotectin are also found in monocytes. … Calprotectin