Histoenzymology of oxidases and dehydrogenases in peripheral blood lymphocytes and monocytes for the study of mitochondrial oxidative phosphorylation

Histoenzymological methods usually performed on muscle fibres have been adapted to assess the functioning of oxidative phosphorylation in human circulating blood lymphocytes and monocytes. Oxidases and dehydrogenases were analysed in lymphocyte/monocyte smears. The specificity of each histoenzymolog...

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Bibliographic Details
Published in:Journal of molecular histology 2000-03, Vol.32 (3), p.133-137
Main Authors: Noher de Halac, I, Bacman, S R, de Kremer, R D
Format: Article
Language:English
Subjects:
Adolescent
Adult
Biopsy
Child
Child, Preschool
Electron Transport
Female
Histocytochemistry - methods
Humans
Lymphocytes
Lymphocytes - enzymology
Male
Mitochondria - enzymology
Mitochondrial DNA
Monocytes - enzymology
Oxidative Phosphorylation
Oxidoreductases - isolation & purification
Phosphorylation
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Summary:Histoenzymological methods usually performed on muscle fibres have been adapted to assess the functioning of oxidative phosphorylation in human circulating blood lymphocytes and monocytes. Oxidases and dehydrogenases were analysed in lymphocyte/monocyte smears. The specificity of each histoenzymological reaction was tested using a specific respiratory chain inhibitor: rotenone for NADH diaphorase, thenoyltrifluoroacetone for succinate dehydrogenase, potassium cyanide for cytochrome c oxidase and oligomycin for ATPase. Complex I activity was detected, but inhibition with rotenone was incomplete. Complexes II, IV and V were almost completely inhibited. These observations indicate that histoenzymology is a valuable method for detecting the activity of these oxidative phosphorylation enzymes in lymphocytes and monocytes. The histoenzymology tests performed on fresh peripheral blood cells resembled those used for muscle biopsies. They could be useful for the diagnosis of respiratory chain disorders in patients.
ISSN:0018-2214
1567-2379
1567-2387
1573-6865
DOI:10.1023/A:1004078705513