Metabolic reprogramming associated with progression of renal ischemia reperfusion injury assessed with hyperpolarized [1-13C]pyruvate

Sci Rep. 2020 Jun 2;10(1):8915. doi: 10.1038/s41598-020-65816-1.

Abstract

Acute kidney injury is a major clinical challenge affecting as many as 1 percent of all hospitalized patients. Currently it is not possible to accurately stratify and predict the outcome of the individual patient. Increasing evidence supports metabolic reprogramming as a potential target for new biomarkers. Hyperpolarized [1-13C]pyruvate imaging is a promising new tool for evaluating the metabolic status directly in the kidneys. We here investigate the prognostic potential of hyperpolarized [1-13C]pyruvate in the setting of acute kidney injury in a rodent model of ischemia reperfusion. A significant correlation was found between the intra-renal metabolic profile 24 hours after reperfusion and 7 days after injury induction, as well as a correlation with the conventional plasma creatinine biomarker of renal function and markers of renal injury. This leads to a possible outcome prediction of renal function and injury development from a metabolic profile measured in vivo. The results support human translation of this new technology to renal patients as all experiements have been performed using clinical MRI equipment.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acute Kidney Injury / metabolism
  • Acute Kidney Injury / pathology
  • Animals
  • Biomarkers / blood
  • Creatinine / blood
  • Disease Models, Animal
  • Disease Progression
  • Kidney / metabolism
  • Kidney / pathology
  • Kidney Diseases / diagnosis
  • Kidney Diseases / metabolism*
  • Kidney Diseases / pathology
  • Magnetic Resonance Imaging
  • Male
  • Polymerase Chain Reaction
  • Prognosis
  • Pyruvic Acid / metabolism*
  • Rats
  • Rats, Wistar
  • Reperfusion Injury / diagnosis
  • Reperfusion Injury / metabolism*
  • Reperfusion Injury / pathology

Substances

  • Biomarkers
  • Pyruvic Acid
  • Creatinine