title: [Immunocytochemical study of the development of pepsinogens in the chick embryo].
abstract: The appearance and localization of pepsinogens in the chicken proventriculus during the normal development were studied immunocytochemically with use of the antibodies against an embryo-specific and an adult-specific chicken pepsinogens. The embryonic pepsinogen exists mainly in the apical part of the gland cells and in the secreted substances of 10-20 day embryonic proventriculus. The adult pepsinogen appears during hatching, and all gland cells become positive mainly at the basal portion one day after hatching.
mesh_terms: D000818:Animals; D002642:Chick Embryo; D005455:Fluorescent Antibody Technique; D010435:Pepsinogens / Q000378:metabolism*; D011531:Proventriculus / Q000196:embryology* / Q000201:enzymology
chemical_list: D010435:Pepsinogens
vernacular_title: Etude immunocytochimique du développement des pepsinogènes chez l'embryon de Poulet.