The walls of capillaries are composed of a single layer of microvascular endothelial cells. These cells differ in morphology and other properties depending on the tissues the capillaries supply. Therefore,AcceGen Biotech offers a range of Microvascular Endothelial Cells produced at AcceGen Biotech's cell culture facility from normal human tissues of different origins.Shortly after isolation, all AcceGen Biotech Microvascular Endothelial Cells are cryopreserved at passage 2 (P2) using AcceGen Biotech's proprietary, serum-free freezing medium, Cryo-SFM. Each cryo vial contains more than 500,000 viable cells after thawing.Proliferating cell cultures are made from 500,000 cryopreserved cells that have been thawed and cultured for three days at AcceGen Biotech.