A Functional Element Necessary for Fetal Hemoglobin Silencing
نویسندگان
چکیده
منابع مشابه
A functional element necessary for fetal hemoglobin silencing.
BACKGROUND An improved understanding of the regulation of the fetal hemoglobin genes holds promise for the development of targeted therapeutic approaches for fetal hemoglobin induction in the β-hemoglobinopathies. Although recent studies have uncovered trans-acting factors necessary for this regulation, limited insight has been gained into the cis-regulatory elements involved. METHODS We iden...
متن کاملFetal hemoglobin silencing in humans.
Interruption of the normal fetal-to-adult transition of hemoglobin expression should largely ameliorate sickle cell and beta-thalassemia syndromes. Achievement of this clinical goal requires a robust understanding of gamma-globin gene and protein silencing during human development. For this purpose, age-related changes in globin phenotypes of circulating human erythroid cells were examined from...
متن کاملCorepressor-dependent silencing of fetal hemoglobin expression by BCL11A.
Reactivation of fetal hemoglobin (HbF) in adults ameliorates the severity of the common β-globin disorders. The transcription factor BCL11A is a critical modulator of hemoglobin switching and HbF silencing, yet the molecular mechanism through which BCL11A coordinates the developmental switch is incompletely understood. Particularly, the identities of BCL11A cooperating protein complexes and the...
متن کاملInduction of Fetal Hemoglobin
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متن کاملCorrection of sickle cell disease in adult mice by interference with fetal hemoglobin silencing.
Persistence of human fetal hemoglobin (HbF, α(2)γ(2)) in adults lessens the severity of sickle cell disease (SCD) and the β-thalassemias. Here, we show that the repressor BCL11A is required in vivo for silencing of γ-globin expression in adult animals, yet dispensable for red cell production. BCL11A serves as a barrier to HbF reactivation by known HbF inducing agents. In a proof-of-principle te...
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ژورنال
عنوان ژورنال: New England Journal of Medicine
سال: 2011
ISSN: 0028-4793,1533-4406
DOI: 10.1056/nejmoa1103070