BCL11A deletions result in fetal hemoglobin persistence and neurodevelopmental alterations

BCL11A deletions result in fetal hemoglobin persistence and neurodevelopmental alterations.

A transition from fetal hemoglobin (HbF) to adult hemoglobin (HbA) normally occurs within a few months after birth. Increased production of HbF after this period of infancy ameliorates clinical symptoms of the major disorders of adult β-hemoglobin: β-thalassemia and sickle cell disease. The transcription factor BCL11A silences HbF and has been an attractive therapeutic target for increasing HbF...

Information for : Fetal hemoglobin persistence and neurodevelopmental alterations due to BCL 11 A deletions

Corepressor-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...

Metabolic persistence of fetal hemoglobin.

Hereditary persistence of fetal hemoglobin (HPFH) has typically been ascribed to mutations in the beta-globin gene cluster. Pharmacologic agents, including the short-chain fatty acid butyrate, have been shown to upregulate fetal and embryonic globin gene expression. In this report we investigate the possibility that metabolic derangements characterized by an inability to metabolize another shor...

Rapid Detection of Deletions Causing S@ Thalassemia and Hereditary Persistence of Fetal Hemoglobin by Enzymatic Amplification

A considerable number of deletions of variable size and position that involve the B-globin gene complex on chromosome 1 1 are associated with the clinical entities of hereditary persistence of fetal hemoglobin (HPFH) and a@ thalassemia. Specific deletions appear to be associated with consistent phenotypes and some are known to be recurrent. To facilitate the molecular diagnosis of uncharacte...