Vascular Biology: Endothelial Specification & Angiogenesis2026-07-13Endothelial identity under pressure: paper watch for July 6-13, 2026A weekly vascular-biology read on new endothelial papers: Apelin as a lymphatic sprouting module, E2F1-driven arterial programming in PAH, ERK convergence in HHT, vascularized brain organoids, and better flow models for endothelial mechanobiology.