Cited by 50Hemoglobinopathies and Related DisordersIron Metabolism and DisordersHemoglobin structure and function

Minihepcidins improve ineffective erythropoiesis and splenomegaly in a new mouse model of adult β-thalassemia major

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Casu, Carla, Chessa, Roberta, Liu, Alison, Gupta, Ritama, Drakesmith, Hal, Fleming, Robert, Ginzburg, Yelena Z., MacDonald, Brian +1 more·2020·Haematologica

Abstract

Minihepcidins are hepcidin agonists that have been previously shown to reverse iron overload and improve erythropoiesis in mice affected by non-transfusion-dependent thalassemia. Given the extreme anemia that occurred with the previous model of transfusion-dependent thalassemia, that model was inadequate for investigating whether minihepcidins can improve red blood cell quality, lifespan and ineffective erythropoiesis. To overcome this limitation, we generated a new murine model of transfusion-dependent thalassemia with severe anemia and splenomegaly, but sufficient red cells and hemoglobin production to test the effect of minihepcidins. Furthermore, this new model demonstrates cardiac iron overload for the first time. In the absence of transfusions, minihepcidins improved red blood cell morphology and lifespan as well as ineffective erythropoiesis. Administration of a minihepcidin in combination with chronic red blood cell transfusion further improved the ineffective erythropoiesis and splenomegaly and reversed cardiac iron overload. These studies indicate that drugs such as minihepcidins have therapeutic potential for patients with transfusion-dependent thalassemia.

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  • By inducing iron restriction, hepcidin agonists ameliorated anemia and iron overload in preclinical studies of thalassemia models.

    “By inducing iron restriction hepcidin agonists ameliorated anemia and iron overload in preclinical studies of thalassemia models;106,121”

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Authors
Casu, C., Chessa, R., Liu, A., Gupta, R., Drakesmith, H., Fleming, R., Ginzburg, Y. Z., MacDonald, B., & Rivella, S.
Affiliations
  • Children's Hospital of Philadelphia (US)
  • John Radcliffe Hospital (GB)
  • Saint Louis University (US)
  • Tisch Cancer Institute (US)
Corresponding author
Rivella, Stefano
Venue
Haematologica
Published
2019-10-03
Volume
105
Issue
7
Pages
1835-1844
ISSN
  • 0390-6078 (ISSN-L)
  • 1592-8721
OpenAlex
W2977564049
Cited by
50
References
56
Citations by year
2026: 6 · 2025: 3 · 2024: 3 · 2023: 6 · 2022: 10 · 2021: 13 · 2020: 9
FWCI
4.39
Type
journal article
Language
en
Open access
Locations
  • Haematologica (publishedVersion)
  • PubMed Central (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
Funders
  • National Institutes of Health (UL1TR000003)
  • Medical Research Council (MC_UU_00008/10)
  • National Heart, Lung, and Blood Institute
  • National Institute of Diabetes and Digestive and Kidney Diseases (R01DK090554, R01DK095112, R01DK107670)
  • National Center for Advancing Translational Sciences
Topics
  • Health Sciences › Medicine › Genetics › Hemoglobinopathies and Related Disorders
  • Health Sciences › Medicine › Hematology › Iron Metabolism and Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Hemoglobin structure and function
Keywords
beta-thalassemia major, transfusion-dependent thalassemia, ineffective erythropoiesis, splenomegaly, cardiac iron overload, red blood cell lifespan, erythrocyte morphology, chronic transfusion, murine disease models, iron overload
MeSH terms
Animals, Disease Models, Animal, Erythropoiesis, Splenomegaly, beta-Thalassemia, Iron Overload, Mice, Hepcidins

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