Management of severe recurrent focal segmental glomerulosclerosis through circulating soluble urokinase receptor modification

Am J Ther. 2013 Mar-Apr;20(2):226-9. doi: 10.1097/MJT.0b013e3182811aca.

Abstract

Circulating soluble urokinase receptor (suPAR) was recently identified as one of the causes responsible for native and recurrent focal segmental glomerulosclerosis (FSGS) through overactivation of podocyte β(3) integrin. Here, we discuss the management of a patient with very high suPAR serum levels and FSGS recurrence. The suPAR reduction using plasmapheresis and immunoadsorption allowed for lowering of suPAR and reduced podocyte β(3) integrin activation and proteinuria. The patient is successfully weaned to bimonthly suPAR removal treatments with improved renal parameters. In summary, we provide an approach for the successful management of severe recurrent FSGS using available therapies with biomarker guidance.

Publication types

  • Case Reports

MeSH terms

  • Biomarkers / metabolism
  • Female
  • Glomerulosclerosis, Focal Segmental / physiopathology
  • Glomerulosclerosis, Focal Segmental / therapy*
  • Humans
  • Immunosorbent Techniques*
  • Integrin beta3 / metabolism
  • Middle Aged
  • Plasmapheresis / methods*
  • Podocytes / metabolism
  • Proteinuria / etiology
  • Proteinuria / therapy
  • Receptors, Urokinase Plasminogen Activator / blood*
  • Recurrence
  • Severity of Illness Index
  • Treatment Outcome

Substances

  • Biomarkers
  • Integrin beta3
  • Receptors, Urokinase Plasminogen Activator