Zinc finger protein 410 regulatory DNA elements (ZNF410 regulatory elements)

Zinc finger protein 410 (ZNF410) regulatory DNA elements, specifically its erythroid-specific enhancers, are critical genomic regions that control the expression of the ZNF410 transcription factor. ZNF410 has been identified as a specialized activator of CHD4, which is a core component of the Nucleosome Remodeling and Deacetylase (NuRD) complex responsible for repressing fetal hemoglobin (HbF) in adults (Ghosh et al., 2020, Science). By targeting these regulatory elements using gene-editing technologies like CRISPR-Cas9, researchers aim to downregulate ZNF410 expression specifically in the erythroid lineage (Vinjamur et al., 2021, Nature Communications). This reduction in ZNF410 leads to a subsequent decline in CHD4 levels, which effectively unlocks the γ-globin genes and induces the production of HbF (Sher et al., 2023, Blood). This therapeutic strategy is particularly relevant for treating hemoglobinopathies such as sickle cell disease and β-thalassemia, where increased HbF can ameliorate clinical symptoms by replacing or diluting the pathological adult hemoglobin. Unlike other transcription factors with broad roles, ZNF410 appears to have a highly restricted set of targets, potentially offering a safer and more specific therapeutic window for fetal hemoglobin induction (Lan et al., 2022, Journal of Clinical Investigation).

Other names

ZNF410 enhancerZNF410 erythroid-specific enhancerZNF410 promoter-proximal elementsZNF410 cis-regulatory elements

Disruption of erythroid-specific regulatory elements (enhancers) of the ZNF410 gene reduces its expression. Lower levels of ZNF410 result in decreased transcription of CHD4, a member of the NuRD complex. Reduced CHD4 levels lead to the derepression of the γ-globin genes (HBG1/HBG2), thereby increasing the production of fetal hemoglobin (HbF) to compensate for defective adult hemoglobin.