human_reference_atlas part of has characterizing marker set has marker component CDH1 cell cell type (from CL) columnar/cuboidal epithelial cell vertebrate lens cell lens epithelial cell A cell of the cuboidal epithelium that covers the lens. The cells of the lens epithelium regulate most of the homeostatic functions of the lens. As ions, nutrients, and liquid enter the lens from the aqueous humor, Na+/K+ ATPase pumps in the lens epithelial cells pump ions out of the lens to maintain appropriate lens osmolarity and volume, with equatorially positioned lens epithelium cells contributing most to this current. The activity of the Na+/K+ ATPases keeps water and current flowing through the lens from the poles and exiting through the equatorial regions. The cells of the lens epithelium also serve as the progenitors for new lens fibers. It constantly lays down fibers in the embryo, fetus, infant, and adult, and continues to lay down fibers for lifelong growth. FMA:67559 CT lens epithelial cell CL:0002224 2010-09-07T10:45:47Z lens epithelial cell Homo sapiens sequence collection lens of camera-type eye eye epithelium of lens