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  • Title: Influence of acute injection of chloroquine on the biliary secretion of lipids and lysosomal enzyme on rats.
    Author: Lafont H, Chanussot F, Dupuy C, Lechene P, Lairon D, Charbonnier-Augeire M, Chabert C, Portugal H, Pauli AM, Hauton JC.
    Journal: Lipids; 1984 Mar; 19(3):195-201. PubMed ID: 6717251.
    Abstract:
    Phospholipids and cholesterol combine with a protein fraction (IgA and an acid polypeptide) in bile to form the bile lipoprotein complex. We wished to determine whether lysosomes participated only on IgA secretion or if their secretory role also involved the lipid components of the bile complex. This aspect was studied with a single acute injection of chloroquine, a lysosomotropic drug. The results show that a nonnegligible quantity of IgA travels through the lysosomes. In addition, phospholipid and cholesterol levels undergo a significant (P less than 0.05) decrease 1 hr after injection before increasing to normal levels. In contrast to the total inhibition of protein secretion (beta-glucuronidase, acid phosphatase), a transitory decrease of the secretion of bile lipids takes place that suggest secretory mechanisms involving organelles other than lysosomes.
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