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The role of osteopontin in chronic kidney disease-mineral bone disorder

Eduardo J Duque1, Cecilia Giachelli2, Rosa M A Moysés3

  • 1Division of Nephrology and Hypertension, Center for Translational Metabolism and Health, Feinberg School of Medicine, Northwestern University, Chicago, Illinois.

Current Opinion in Nephrology and Hypertension
|April 1, 2025
PubMed
Abstract

Insights

Osteopontin (OPN) may serve as a biomarker for chronic kidney disease-mineral bone disorder (CKD-MBD). Understanding OPN

Area of Science:

  • Nephrology
  • Endocrinology
  • Bone Biology

Background:

  • Chronic kidney disease-mineral bone disorder (CKD-MBD) is linked to bone fragility and sarcopenia.
  • Uremia-related systemic damage requires new therapeutic agents and pathway identification.

Purpose of the Study:

  • To explore the role of Osteopontin (OPN) in CKD-MBD.
  • To investigate OPN as a potential biomarker and therapeutic target in CKD.

Main Methods:

  • Review of existing literature on Osteopontin (OPN) in physiological and pathological processes.
  • Analysis of OPN's involvement in bone mineralization, remodeling, and its interplay with parathyroid hormone and FGF23.
  • Examination of OPN expression in muscle tissue of CKD patients with hyperparathyroidism.

Main Results:

  • Osteopontin (OPN) is implicated in bone mineralization and remodeling disturbances.
  • OPN expression in muscle tissue correlates with reduced functionality and inflammation in CKD patients, which improves after parathyroidectomy.
  • OPN acts as a bridge between multiple physiological systems and may indicate various diseases.

Conclusions:

  • Osteopontin (OPN) shows potential as a biomarker in nephrology.
  • Further research into OPN's role in CKD-MBD can inform better therapeutic strategies for CKD patients.

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