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Hydroxyurea could be a good clinically relevant iron chelator.

Khushnooma Italia1, Roshan Colah1, Kanjaksha Ghosh2

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Hydroxyurea, combined with iron chelators deferiprone and deferasirox, effectively reduces iron overload in mice. This combination therapy shows the greatest potential for managing iron accumulation in conditions like beta-thalassemia.

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Area of Science:

  • Biomedical Science
  • Pharmacology
  • Hematology

Background:

  • Previous research indicated hydroxyurea reduces serum ferritin in beta-thalassemia patients.
  • Iron overload is a significant complication in various hematological disorders.

Purpose of the Study:

  • To evaluate hydroxyurea's efficacy in reducing iron overload, alone and combined with deferiprone and deferasirox.
  • To assess the impact of combination therapy on iron markers in an iron-overloaded mouse model.

Main Methods:

  • Iron overload was induced in BALB/c mice using iron-sucrose injections.
  • Mice were treated for 4 months with hydroxyurea, deferiprone, deferasirox, or their combinations.
  • Evaluated parameters included complete blood count, serum ferritin, TBARS, sTfr, hepcidin, and tissue iron content.

Main Results:

  • All iron chelator treatments significantly reduced serum ferritin, TBARS, hepcidin, and tissue iron levels.
  • The combination of deferiprone, deferasirox, and hydroxyurea demonstrated the most substantial reduction in iron markers.
  • Hydroxyurea demonstrated a role in reducing iron burden in this experimental model.

Conclusions:

  • Hydroxyurea exhibits iron-reducing properties in experimental iron overload.
  • Combining hydroxyurea with deferiprone and deferasirox enhances iron chelation efficacy.
  • Combination therapy holds promise for managing iron overload conditions.