Anaerobic Glycolysis Maintains the Glomerular Filtration Barrier Independent of Mitochondrial Metabolism and Dynamics

Brinkkoetter, Paul T. and Bork, Tillmann and Salou, Sarah and Liang, Wei and Mizi, Athanasia and Özel, Cem and Koehler, Sybille and Hagmann, H. Henning and Ising, Christina and Kuczkowski, Alexander and Schnyder, Svenia and Abed, Ahmed and Schermer, Bernhard and Benzing, Thomas and Kretz, Oliver and Puelles, Victor G. and Lagies, Simon and Schlimpert, Manuel and Kammerer, Bernd and Handschin, Christoph and Schell, Christoph and Huber, Tobias B.. (2019) Anaerobic Glycolysis Maintains the Glomerular Filtration Barrier Independent of Mitochondrial Metabolism and Dynamics. Cell Reports, 27 (5). pp. 1551-1566.e5.

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Official URL: https://edoc.unibas.ch/70391/

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The cellular responses induced by mitochondrial dysfunction remain elusive. Intrigued by the lack of almost any glomerular phenotype in patients with profound renal ischemia, we comprehensively investigated the primary sources of energy of glomerular podocytes. Combining functional measurements of oxygen consumption rates, glomerular metabolite analysis, and determination of mitochondrial density of podocytes in vivo, we demonstrate that anaerobic glycolysis and fermentation of glucose to lactate represent the key energy source of podocytes. Under physiological conditions, we could detect neither a developmental nor late-onset pathological phenotype in podocytes with impaired mitochondrial biogenesis machinery, defective mitochondrial fusion-fission apparatus, or reduced mtDNA stability and transcription caused by podocyte-specific deletion of Pgc-1α, Drp1, or Tfam, respectively. Anaerobic glycolysis represents the predominant metabolic pathway of podocytes. These findings offer a strategy to therapeutically interfere with the enhanced podocyte metabolism in various progressive kidney diseases, such as diabetic nephropathy or focal segmental glomerulosclerosis (FSGS).
Faculties and Departments:03 Faculty of Medicine > Departement Biomedizin > Associated Research Groups > Pharmakologie (Handschin)
05 Faculty of Science > Departement Biozentrum > Growth & Development > Growth & Development (Handschin)
UniBasel Contributors:Handschin, Christoph
Item Type:Article, refereed
Article Subtype:Research Article
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:14 May 2019 09:54
Deposited On:14 May 2019 09:53

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