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Immunohistochemical studies on the distribution and frequency of fatty‐acid‐binding protein positive cells in human fetal, newborn and adult liver tissues
Author(s) -
Suzuki Toshimitsu,
Ono Teruo
Publication year - 1987
Publication title -
the journal of pathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.964
H-Index - 184
eISSN - 1096-9896
pISSN - 0022-3417
DOI - 10.1002/path.1711530412
Subject(s) - fetus , pathology , immunohistochemistry , fatty acid binding protein , biology , antibody , amniotic fluid , paraformaldehyde , gestation , pregnancy , medicine , immunology , biochemistry , genetics , gene
Human tissues from adult, newborn/infant, and fetal livers, and gall bladders were immunostained with rabbit antibodies against fatty‐acid‐binding protein (FABP) isolated from rat liver. These antibodies cross‐reacted with FABP from human liver by a double immunodiffusion method. The antigenicity of FABP of human liver is well preserved in various fixatives including 10 per cent formaldehyde, 4 per cent paraformaldehyde, and Zamboni's and Bouin's solution. FABP immunoreactivities, moreover, could be detected similarly in both crvostat and paraffin sections. FABP of hepatic type was found in hepatocytes most frequently in the fetus (as early as the 7th week of gestation), moderately in the newborn/infant, and infrequently in adult liver tissues. The distribution pattern of the positive hepatocytes was uniform throughout the acini in fetuses, but periportal in adults. No immunoreactive cells were found in the gall bladder or in the extra‐ and intra‐hepatic bile ducts. In this study, FABP was found in human hepatocytes in both fetal and postnatal livers. FABP, therefore, might be a useful marker substance in the investigation of the physiology and pathology of the human liver.