title: [Organ specific embryonic antigens during the differentiation of the liver and kidney in chickens].
abstract: Among the cellular antigens, demonstrated by their reaction with Rabbit anti-embryonic Chick liver serum, two are present in the supernatant fraction obtained after ultracentrifugation of liver extracts from 6-day-old Chick embryos, and in the sedimentable fraction from the 9th day onward. A third antigen, detectable from the 9th day of incubation, is found only in the sedimentable fraction. The three antigens exist, but at much lower concentrations, in adult Chick kidney. Rabbit anti-embryonic Chick mesonephros serum permits the demonstration of at least one kidney-specific antigen. The latter, localized at the apical part of the cells of the proximal secretory tubules, is present in mesonephros and embryonic or adult metanephros. Although suggested by several observations, the presence of antibodies reacting with mesonephros-specific antigens could not be definitely established.
mesh_terms: D000367:Age Factors; D000818:Animals; D000941:Antigens / Q000032:analysis*; D002642:Chick Embryo; D008099:Liver / Q000196:embryology* / Q000276:immunology; D008650:Mesonephros / Q000276:immunology*
chemical_list: D000941:Antigens
vernacular_title: Recherche d'antigènes embryonnaires spécifiques d'organe au cours de la différenciation du foie et du rein chez le Poulet