title: Ultrastructural immunoenzymatic study of alpha-fetoprotein-producing cells in the human fetal liver.
abstract: Cells producing alpha-fetoprotein in human fetal liver have been studied with specific horseradish peroxidase labeled immunoglobulins. Under light microscopy, the alpha-fetoprotein is strictly localized in the cytoplasm of certain hepatocytes, distributed randomly in the hepatic lobule. Ultrastructural examination of thesame cells shows that the alpha-fetoprotein is present within the cytoplasm. Ultrastructural differences are described in hepatocytes according to whether or not the cell is producing alpha-fetoprotein at the time of sampling. These observations lead to the hypothesis that alpha-fetoprotein may correspond to a particular functional state of the hepatocyte in human fetal liver.
mesh_terms: D003593:Cytoplasm / Q000032:analysis; D005333:Fetus / Q000648:ultrastructure*; D006651:Histocytochemistry; D006801:Humans; D007124:Immunoenzyme Techniques; D008099:Liver / Q000378:metabolism / Q000648:ultrastructure*; D000509:alpha-Fetoproteins / Q000096:biosynthesis*
chemical_list: D000509:alpha-Fetoproteins