Mitochondrial complex V expression and activity in cystinotic fibroblasts
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Updated: Jul 4, 2026

Assessment of Mitochondrial Functions and Cell Viability in Renal Cells Overexpressing Protein Kinase C Isozymes
Published on: January 7, 2013
Martijn J Wilmer1, Lambertus P van den Heuvel, Richard J Rodenburg
1Laboratory of Pediatrics and Neurology, Radboud University Nijmegen Medical Centre, Nijmegen, 6500 HB, The Netherlands. m.wilmer@cukz.umcn.nl
Abstract:
Alterations in ATP metabolism have been proposed to be involved in the pathogenesis of cystinosis, the most common form of inherited Fanconi syndrome. A recent study showed normal activity of respiratory chain complexes I-IV with decreased ATP levels in cystinotic fibroblasts. Here, we show normal complex V expression and activity in mitochondria of cystinotic fibroblasts. This indicates that alterations in mitochondrial oxidative phosphorylation enzymes are not responsible for ATP decrease in cystinotic fibroblasts.
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