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Immunochemical and biochemical studies of fatty acid oxidation in fibroblasts of Zellweger and X-linked adrenoleukodystrophy patients. 1991

F A Reubsaet, and J H Veerkamp, and M L Brückwilder, and J M Trijbels, and T Hashimoto, and L A Monnens
Department of Pediatrics, University of Nijmegen, The Netherlands.

Immunoblot analyses of peroxisomal beta-oxidation enzymes showed that subunit A of acyl-CoA oxidase gave a stronger immunoreaction in fibroblasts of Zellweger and X-linked adrenoleukodystrophy patients than in those of controls. Subunits B and C and 3-ketoacyl-CoA thiolase were detected in fibroblasts of controls and X-linked adrenoleukodystrophy patients, but not of Zellweger patients. Total oxidation of palmitic and lignoceric acid was normal in homogenates of fibroblasts from Zellweger and X-linked adrenoleukodystrophy patients. The peroxisomal oxidation of both acids was only deficient in Zellweger patients. These data may not reflect the situation in vivo, as is evident from the accumulation of very-long-chain fatty acids in Zellweger and X-linked adrenoleukodystrophy patients.

UI MeSH Term Description Entries
D008830 Microbodies Electron-dense cytoplasmic particles bounded by a single membrane, such as PEROXISOMES; GLYOXYSOMES; and glycosomes. Glycosomes,Glycosome,Microbody
D010084 Oxidation-Reduction A chemical reaction in which an electron is transferred from one molecule to another. The electron-donating molecule is the reducing agent or reductant; the electron-accepting molecule is the oxidizing agent or oxidant. Reducing and oxidizing agents function as conjugate reductant-oxidant pairs or redox pairs (Lehninger, Principles of Biochemistry, 1982, p471). Redox,Oxidation Reduction
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
D010169 Palmitic Acids A group of 16-carbon fatty acids that contain no double bonds. Acids, Palmitic
D005227 Fatty Acids Organic, monobasic acids derived from hydrocarbons by the equivalent of oxidation of a methyl group to an alcohol, aldehyde, and then acid. Fatty acids are saturated and unsaturated (FATTY ACIDS, UNSATURATED). (Grant & Hackh's Chemical Dictionary, 5th ed) Aliphatic Acid,Esterified Fatty Acid,Fatty Acid,Fatty Acids, Esterified,Fatty Acids, Saturated,Saturated Fatty Acid,Aliphatic Acids,Acid, Aliphatic,Acid, Esterified Fatty,Acid, Saturated Fatty,Esterified Fatty Acids,Fatty Acid, Esterified,Fatty Acid, Saturated,Saturated Fatty Acids
D005347 Fibroblasts Connective tissue cells which secrete an extracellular matrix rich in collagen and other macromolecules. Fibroblast
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000102 Acetyl-CoA C-Acyltransferase Enzyme that catalyzes the final step of fatty acid oxidation in which ACETYL COA is released and the CoA ester of a fatty acid two carbons shorter is formed. 3-Ketoacyl CoA Thiolase,3-Ketothiolase,Acetyl CoA Acyltransferase,Acetyl Coenzyme A Acyltransferase,beta-Ketothiolase,2-Methylacetoacetyl CoA Thiolase,3-Oxoacyl CoA Thiolase,3-Oxoacyl-Coenzyme A Thiolase,beta-Ketoacyl Thiolase,Acetyl CoA C Acyltransferase,Acyltransferase, Acetyl CoA,C-Acyltransferase, Acetyl-CoA,CoA Acyltransferase, Acetyl,CoA Thiolase, 2-Methylacetoacetyl,CoA Thiolase, 3-Ketoacyl,CoA Thiolase, 3-Oxoacyl,Thiolase, 2-Methylacetoacetyl CoA,Thiolase, 3-Ketoacyl CoA,Thiolase, 3-Oxoacyl CoA,Thiolase, 3-Oxoacyl-Coenzyme A,Thiolase, beta-Ketoacyl,beta Ketoacyl Thiolase,beta Ketothiolase
D000326 Adrenoleukodystrophy An X-linked recessive disorder characterized by the accumulation of saturated very long chain fatty acids in the LYSOSOMES of ADRENAL CORTEX and the white matter of CENTRAL NERVOUS SYSTEM. This disease occurs almost exclusively in the males. Clinical features include the childhood onset of ATAXIA; NEUROBEHAVIORAL MANIFESTATIONS; HYPERPIGMENTATION; ADRENAL INSUFFICIENCY; SEIZURES; MUSCLE SPASTICITY; and DEMENTIA. The slowly progressive adult form is called adrenomyeloneuropathy. The defective gene ABCD1 is located at Xq28, and encodes the adrenoleukodystrophy protein (ATP-BINDING CASSETTE TRANSPORTERS). Adrenomyeloneuropathy,Schilder-Addison Complex,X-Linked Adrenoleukodystrophy,ALD (Adrenoleukodystrophy),Addison Disease and Cerebral Sclerosis,Bronze Schilder Disease,Melanodermic Leukodystrophy,Siemerling-Creutzfeldt Disease,X-ALD,X-ALD (X-Linked Adrenoleukodystrophy),Adrenoleukodystrophy, X-Linked,Leukodystrophies, Melanodermic,Leukodystrophy, Melanodermic,Schilder Addison Complex,Siemerling Creutzfeldt Disease,X ALD,X ALD (X Linked Adrenoleukodystrophy),X Linked Adrenoleukodystrophy
D014960 X Chromosome The female sex chromosome, being the differential sex chromosome carried by half the male gametes and all female gametes in human and other male-heterogametic species. Chromosome, X,Chromosomes, X,X Chromosomes

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