SWI/SNF Chromatin‐Remodeling Enzymes Brahma‐Related Gene 1 (BRG1) and Brahma (BRM) Are Dispensable in Multiple Models of Postnatal Angiogenesis But Are Required for Vascular Integrity in Infant Mice

Abstract

Despite their important roles in embryonic vascular development, SWI/SNF chromatin-remodeling complexes display a surprising lack of participation in the 3 models of postnatal angiogenesis we analyzed. However, these complexes are essential for maintaining vascular integrity in specific tissue beds before weaning. These findings highlight the temporal and spatial specificity of SWI/SNF activities in the vasculature and may indicate that other chromatin-remodeling complexes play redundant or more essential roles during physiological and pathological postnatal vascular development.