Light microscopic immunocytochemical demonstration of peroxisomal enzymes in epon sections. 1984

J A Litwin, and S Yokota, and T Hashimoto, and H D Fahimi

A procedure is described for light microscopic immunocytochemical localization of catalase and three enzymes of peroxisomal lipid beta-oxidation: acyl-CoA oxidase, enoyl-CoA hydratase and 3-ketoacyl-CoA thiolase in semi-thin sections of rat liver processed for routine electron microscopy. Satisfactory immunostaining required the removal of the epoxy resin with sodium ethoxide, controlled digestion of deplasticized sections with proteases and, in case of osmiumfixed tissue, bleaching with oxidants. Resin removal was essential for successful immunostaining, and protease treatment enhanced markedly the intensity of the reaction. This study shows that tissues processed for conventional ultrastructural studies can be used for postembedding immunocytochemical demonstration of various peroxisomal enzymes.

UI MeSH Term Description Entries
D007120 Immunochemistry Field of chemistry that pertains to immunological phenomena and the study of chemical reactions related to antigen stimulation of tissues. It includes physicochemical interactions between antigens and antibodies.
D008099 Liver A large lobed glandular organ in the abdomen of vertebrates that is responsible for detoxification, metabolism, synthesis and storage of various substances. Livers
D008297 Male Males
D008830 Microbodies Electron-dense cytoplasmic particles bounded by a single membrane, such as PEROXISOMES; GLYOXYSOMES; and glycosomes. Glycosomes,Glycosome,Microbody
D010088 Oxidoreductases The class of all enzymes catalyzing oxidoreduction reactions. The substrate that is oxidized is regarded as a hydrogen donor. The systematic name is based on donor:acceptor oxidoreductase. The recommended name will be dehydrogenase, wherever this is possible; as an alternative, reductase can be used. Oxidase is only used in cases where O2 is the acceptor. (Enzyme Nomenclature, 1992, p9) Dehydrogenases,Oxidases,Oxidoreductase,Reductases,Dehydrogenase,Oxidase,Reductase
D011919 Rats, Inbred Strains Genetically identical individuals developed from brother and sister matings which have been carried out for twenty or more generations or by parent x offspring matings carried out with certain restrictions. This also includes animals with a long history of closed colony breeding. August Rats,Inbred Rat Strains,Inbred Strain of Rat,Inbred Strain of Rats,Inbred Strains of Rats,Rat, Inbred Strain,August Rat,Inbred Rat Strain,Inbred Strain Rat,Inbred Strain Rats,Inbred Strains Rat,Inbred Strains Rats,Rat Inbred Strain,Rat Inbred Strains,Rat Strain, Inbred,Rat Strains, Inbred,Rat, August,Rat, Inbred Strains,Rats Inbred Strain,Rats Inbred Strains,Rats, August,Rats, Inbred Strain,Strain Rat, Inbred,Strain Rats, Inbred,Strain, Inbred Rat,Strains, Inbred Rat
D002374 Catalase An oxidoreductase that catalyzes the conversion of HYDROGEN PEROXIDE to water and oxygen. It is present in many animal cells. A deficiency of this enzyme results in ACATALASIA. Catalase A,Catalase T,Manganese Catalase,Mn Catalase
D004746 Enoyl-CoA Hydratase An enzyme that catalyzes reversibly the hydration of unsaturated fatty acyl-CoA to yield beta-hydroxyacyl-CoA. It plays a role in the oxidation of fatty acids and in mitochondrial fatty acid synthesis, has broad specificity, and is most active with crotonyl-CoA. EC 4.2.1.17. 3-Hydroxyacyl CoA Hydrolyases,3-Hydroxyacyl Dehydratases,Crotonase,Enoyl Hydrase,beta-Hydroxyacyl Dehydratases,Enoyl CoA Hydratases,beta-Hydroxyacyl-CoA Dehydrases,trans-2-Enoyl-Coenzyme A Hydratase,3 Hydroxyacyl CoA Hydrolyases,3 Hydroxyacyl Dehydratases,CoA Hydratases, Enoyl,CoA Hydrolyases, 3-Hydroxyacyl,Dehydrases, beta-Hydroxyacyl-CoA,Dehydratases, 3-Hydroxyacyl,Dehydratases, beta-Hydroxyacyl,Enoyl CoA Hydratase,Hydrase, Enoyl,Hydratase, Enoyl-CoA,Hydratase, trans-2-Enoyl-Coenzyme A,Hydratases, Enoyl CoA,Hydrolyases, 3-Hydroxyacyl CoA,beta Hydroxyacyl CoA Dehydrases,beta Hydroxyacyl Dehydratases,trans 2 Enoyl Coenzyme A Hydratase
D004853 Epoxy Resins Polymeric resins derived from OXIRANES and characterized by strength and thermosetting properties. Epoxy resins are often used as dental materials. Epoxy Resin,Resin, Epoxy,Resins, Epoxy
D006651 Histocytochemistry Study of intracellular distribution of chemicals, reaction sites, enzymes, etc., by means of staining reactions, radioactive isotope uptake, selective metal distribution in electron microscopy, or other methods. Cytochemistry

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