NCIt definition : Soluble monocyte differentiation antigen CD14 is encoded by the human CD14 gene. This
soluble protein may be used as a marker of monocyte activation and is derived either
through cleavage that removes the glycophosphoinositol (GPI)-anchor from the membrane
bound form of CD14 or as non-cleaved form secreted from the non-GPI-modified intracellular
pool of CD14.;