iScience (Mar 2023)

Experimental evidence and clinical implications of Warburg effect in the skeletal muscle of Fabry disease

  • Jessica Gambardella,
  • Antonella Fiordelisi,
  • Federica Andrea Cerasuolo,
  • Antonietta Buonaiuto,
  • Roberta Avvisato,
  • Alessandro Viti,
  • Eduardo Sommella,
  • Fabrizio Merciai,
  • Emanuela Salviati,
  • Pietro Campiglia,
  • Valeria D’Argenio,
  • Silvia Parisi,
  • Antonio Bianco,
  • Letizia Spinelli,
  • Eugenio Di Vaia,
  • Alberto Cuocolo,
  • Antonio Pisani,
  • Eleonora Riccio,
  • Teodolinda Di Risi,
  • Michele Ciccarelli,
  • Gaetano Santulli,
  • Daniela Sorriento,
  • Guido Iaccarino

Journal volume & issue
Vol. 26, no. 3
p. 106074

Abstract

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Summary: Skeletal muscle (SM) pain and fatigue are common in Fabry disease (FD). Here, we undertook the investigation of the energetic mechanisms related to FD-SM phenotype. A reduced tolerance to aerobic activity and lactate accumulation occurred in FD-mice and patients. Accordingly, in murine FD-SM we detected an increase in fast/glycolytic fibers, mirrored by glycolysis upregulation. In FD-patients, we confirmed a high glycolytic rate and the underutilization of lipids as fuel. In the quest for a tentative mechanism, we found HIF-1 upregulated in FD-mice and patients. This finding goes with miR-17 upregulation that is responsible for metabolic remodeling and HIF-1 accumulation. Accordingly, miR-17 antagomir inhibited HIF-1 accumulation, reverting the metabolic-remodeling in FD-cells. Our findings unveil a Warburg effect in FD, an anaerobic-glycolytic switch under normoxia induced by miR-17-mediated HIF-1 upregulation. Exercise-intolerance, blood-lactate increase, and the underlying miR-17/HIF-1 pathway may become useful therapeutic targets and diagnostic/monitoring tools in FD.

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