part of capable of expresses lab material entity copper cell These cells can be distinguished from other enterocytes by their strong expression of labial in the larval and adult gut (Dubreuil et al., 2001). fly_anatomy.ontology FBbt:00005782 Large cell in the middle region of the midgut that is cup-shaped with long microvilli. These cells accumulate copper and secrete acid. cuprophilic cell middle midgut midgut enterocyte acid secretion