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  • Title: Synthesis and secretion of some plasma proteins by tissue slices of Morris hepatoma 7777 and liver from control and turpentine-injected rats.
    Author: Koj A, Dubin A, Kasperczyk H, Kaczmarski F, Stankiewicz D.
    Journal: Folia Histochem Cytochem (Krakow); 1983; 21(3-4):211-8. PubMed ID: 6199267.
    Abstract:
    Slices of Morris hepatoma 7777 or rat liver isolated from control or turpentine-injected rats were incubated for 2 h with 14C-leucine. Radioactivities incorporated into albumin, alpha-fetoprotein, fibrinogen, alpha 1-AP-globulin, haptoglobin and alpha 1-acid glycoprotein were determined after the proteins had been isolated from the incubation medium or tissue homogenate by immunoprecipitation with monospecific antisera. It was found that hepatoma synthesizes fibrinogen, alpha 1-AP-globulin and alpha 1-acid glycoprotein in the amounts comparable to rat liver, whereas formation of albumin and haptoglobin is reduced 5- to 10-fold. Local inflammation elicited by injection of turpentine to tissue donors increased formation of acute-phase protein in liver slices but had no effect on synthesis of these proteins in preparations of Morris hepatoma, although certain ultrastructural changes in the Golgi complex were observed not only in the liver but also in the tumour.
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