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  • Title: ETV2 functions as a pioneer factor to regulate and reprogram the endothelial lineage.
    Author: Gong W, Das S, Sierra-Pagan JE, Skie E, Dsouza N, Larson TA, Garry MG, Luzete-Monteiro E, Zaret KS, Garry DJ.
    Journal: Nat Cell Biol; 2022 May; 24(5):672-684. PubMed ID: 35550615.
    Abstract:
    The vasculature is an essential organ for the delivery of blood and oxygen to all tissues of the body and is thus relevant to the treatment of ischaemic diseases, injury-induced regeneration and solid tumour growth. Previously, we demonstrated that ETV2 is an essential transcription factor for the development of cardiac, endothelial and haematopoietic lineages. Here we report that ETV2 functions as a pioneer factor that relaxes closed chromatin and regulates endothelial development. By comparing engineered embryonic stem cell differentiation and reprogramming models with multi-omics techniques, we demonstrated that ETV2 was able to bind nucleosomal DNA and recruit BRG1. BRG1 recruitment remodelled chromatin around endothelial genes and helped to maintain an open configuration, resulting in increased H3K27ac deposition. Collectively, these results will serve as a platform for the development of therapeutic initiatives directed towards cardiovascular diseases and solid tumours.
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