title: Electron immunohistochemical evidence for the human intestinal I cell as the source of CCK.
abstract: Evidence was obtained by the use of alternate semithin-thin serial secretions for light and electron microsocpy that the I cell is the source of CCK PZ. The antibodies used were raised to a synthetic fragment of the mid part (9-20) of the (1-33) CCK-PZ molecule, and were thus free from any contamination with cross-reacting subpopulations of antibodies that might bind to gastrin.
mesh_terms: D002766:Cholecystokinin / Q000032:analysis*; D005455:Fluorescent Antibody Technique; D006801:Humans; D007413:Intestinal Mucosa / Q000032:analysis / Q000166:cytology* / Q000276:immunology; D008854:Microscopy, Electron
chemical_list: D002766:Cholecystokinin