... Japan) for providingpSA-bgeo; Dr Izumo Saito (Institute of MedicalScience, University of Tokyo, Japan) for providingpCAG-Cre; Dr Ikuo Yana (Institute of MedicalScience, University of Tokyo, ... Japan) for help in per-forming endothelial tube formation experiments. Thiswork was supported by grants from the Japan Society for the Promotion of Science (to T. I.) and the Minis-try of Education, ... IchiseLaboratory of Gene Expression and Regulation, Center for Experimental Medicine, Institute of Medical Science, University of Tokyo, JapanAs an indispensable component of the vascular system,endothelial...