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  • Title: Suppression of peroxisomal lipid beta-oxidation enzymes of TNF-alpha.
    Author: Beier K, Völkl A, Fahimi HD.
    Journal: FEBS Lett; 1992 Oct 05; 310(3):273-6. PubMed ID: 1397283.
    Abstract:
    TNF-alpha is a potent cytokine which induces marked hyperlipidemia. Because of the important role of peroxisomes in lipid metabolism we investigated the effects of human recombinant TNF-alpha upon rat liver peroxisomal enzymes. Sixteen hours after the administration of a single dose of 25 micrograms of TNF-alpha to male rats the activity of peroxisomal fatty acyl-CoA oxidase was reduced by 50%. This was confirmed also by immunoblotting and by quantitative immunoelectron microscopy which in addition revealed substantial reduction of the trifunctional protein (hydratase-dehydrogenase-isomerase) in peroxisomes. These observations suggest that the suppression of peroxisomal beta-oxidation may contribute to the perturbation of the isomerase) in peroxisomes. These observations suggest that the suppression of peroxisomal beta-oxidation may contribute to the perturbation of the lipid metabolism induced by TNF-alpha.
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