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Target intelligence / Profile preview
Fetal Hemoglobin Synthesis (HbF Synthesis)
- Target
- HbF Synthesis
- Molecular classification
- Gene Expression, Protein Synthesis, Transcription Factor Regulation
01
Overview
Fetal hemoglobin (HbF) synthesis is the process by which erythroid precursor cells produce HbF, composed of two alpha and two gamma globin chains. HbF facilitates efficient oxygen transfer from maternal to fetal blood. Postnatally, HbF decreases as adult hemoglobin (HbA) becomes dominant. Regulation involves factors like BCL11A (repressor) and HIC2 (upstream repressor of BCL11A). Reactivating HbF synthesis can ameliorate symptoms in sickle cell anemia and beta-thalassemia.
- Other names
- HbF ProductionGamma-Globin Gene ExpressionFetal Hemoglobin Development
02
Mechanism of action
Modulation of gamma-globin gene expression, typically through targeting repressors like BCL11A or activators of gamma-globin transcription. Some drugs act through epigenetic modification.
03
Biological functions
Oxygen TransportErythropoiesisRegulation of Globin Gene Switching
04
Disease associations
Sickle Cell AnemiaBeta-ThalassemiaHereditary Persistence of Fetal Hemoglobin (HPFH)
05
Safety considerations
Potential for off-target effects when manipulating global gene expressionRisk of myelosuppression with some HbF-inducing drugsVariability in response to HbF-inducing therapies
06
Interacting drugs
Hydroxyurea (increases HbF)
2 more in the full profile.
07
Biomarkers
HbF levels in bloodGamma-globin mRNA expressionBCL11A expression levelsHIC2 expression levels
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