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  • Title: Human liver nucleolar antigens.
    Author: Busch RK, Busch H.
    Journal: Proc Soc Exp Biol Med; 1981 Oct; 168(1):125-30. PubMed ID: 6798571.
    Abstract:
    In an extension of previous studies on the antigens in rat liver nucleoli (R. K. Busch, R. C. Reddy, D. H. Henning, and H. Busch, Proc. Soc. Exp. Biol. Med. 160, 185 (1979); R. K. Busch and H. Busch, Tumori 63, 347 (1977); F. M. Davis, R. K. Busch, L. C. Yeoman, and H. Busch, Cancer Res. 38, 1906 (1978), rabbit antibodies were elicited to human liver nucleoli isolated by the sucrose--Mg2+ method (10). Fluorescent nucleoli were found in liver cryostat sections treated with rabbit anti-human liver nucleolar antibodies followed by fluorescein-conjugated goat anti-rabbit antibodies. In HeLa cells, fluorescence was distributed throughout the nucleus and in a nuclear network but was not localized to the nucleolus. In placental cryostat sections, an overall nuclear fluorescence was observed with some localization to nucleoli. Immunodiffusion analysis revealed two immunoprecipitin bands which appeared to be liver specific. Other immunoprecipitin bands were common to liver, placenta, and HeLa nuclear extracts. Rocket immunoelectrophoresis revealed two liver-specific antigens, one migrating to the cathode and the other to the anode Other rockets exhibited identity to antigens of other nuclear extracts. These results demonstrate the presence of human liver nucleolar-specific antigens which were not found in the HeLa and placental cells.
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