Endocrine Abstracts

Objectives: Endothelial cells (ECs) have major role in post-ischemic angiogenesis. EZH2 (enhancer of zest homology) carries out trimethylation of lysine 27 on histone3 (H3K27me3) – repressive mark, thus modulating gene expression. We tested if the EZH2 inhibitor 3-deazaneplanocin (DZNep) regulates angiogenesis under hypoxia and limb ischemia (LI) in vivo in ECs and mouse limb muscles respectively.Methods: Human umbilical vein ECs...

Endothelial cells (ECs) may display distorted epigenetic features in diabetes mellitus (DM) but this has not been investigated under combined conditions of diabetes and limb ischemia. Initial screening for histone H3 and H4 trimethylation (me3) and panacetylation of lysine residues (causing transcriptional repression and activation) were conducted using two models of hyperglycemia and ischemia. Human umbilical vein ECs (HUVECs) were cultured in EGM2 or EBM2 media (low growth f...