Abstract：
:Reactivation of fetal hemoglobin (HbF) expression is an important therapeutic option in patients with hemoglobin disorders. In sickle cell disease (SCD), an increase in HbF would interfere with the polymerization of sickle hemoglobin while in beta-thalassemia, an increase in gamma-globin chain synthesis would decrease non-alpha:alpha chain imbalance. Hydroxyurea, an inducer of HbF, is the only currently approved agent for the treatment of patients with moderate and/or severe SCD. However, about one third of patients with SCD do not respond to HU, and in beta-thalassemia, the clinical response is unimpressive. The last decade has seen a renewed interest in the use of inhibitors of DNA methylation in the treatment of patients with hemoglobin disorders. In this review, we discuss the role of DNA methylation in gamma-globin gene regulation, describe clinical trials with agents that hypomethylate DNA and speculate about the future role of DNA hypomethylation therapy in patients with SCD and beta-thalassemia.
journal_name
Blood Revjournal_title
Blood reviewsauthors
Fathallah H,Atweh GFdoi
10.1016/j.blre.2006.01.002subject
Has Abstractpub_date
2006-07-01 00:00:00pages
227-34issue
4eissn
0268-960Xissn
1532-1681pii
S0268-960X(06)00002-6journal_volume
20pub_type
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