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Impact of epigenetic mechanisms on therapeutic approaches of hemoglobinopathies

Dario Costa1, Maria Capuano1, Linda Sommese1

  • 1U.O.C. Immunohematology, Transfusion Medicine and Transplant Immunology (SIMT), Azienda Ospedaliera Universitaria (AOU), Second University of Naples, Italy.

Blood Cells, Molecules & Diseases
|July 5, 2015
PubMed

Hemoglobinopathies are inherited disorders characterized by anomalies of structure, function or production of globin chains. From conception to adulthood, the different expressions over time of the various globin chains depend on the activation/deactivation of different globin genes through methylation and chromatin remodeling processes. The most significant clinical disorders are β-thalassemia and sickle cell disease. The clinical management of these disorders engages regular blood transfusions. Another therapy is represented by allogeneic hematopoietic cells transplantation. There are several studies based on the innovative therapeutic strategies that involve some epigenetic mechanisms focused on the reactivation of γ-globin gene expression. The induction of fetal hemoglobin expression in adulthood is an effective therapy for these disorders. Particularly interesting are the recent data on miRNAs showing the interaction of these molecules with different transcription factors such as MYB, KLF, BCL11A and SOX6. The aim of this review was to report an update on the dynamic epigenetic modifications as targets for therapy in hemoglobinopathies.

Keywords:
Epigenetic mechanismFetal hemoglobin inducersSickle cell diseaseβ-Thalassemia

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