human_reference_atlas part of has characterizing marker set has marker component PDGFRA cell cell type (from CL) connective tissue cell keratocyte corneal keratocyte CT 2010-09-22T01:57:40Z corneal fibroblast keratocyte CL:0002363 keratocyte A keratocyte is a specialized fibroblast residing in the cornea stroma that has a flattened, dendritic cell located between the lamellae with a large flattened nucleus and lengthy processes which communicate with neighboring cells. This corneal layer, representing about 85-90% of corneal thickness, is built up from highly regular collagenous lamellae and extracellular matrix components. Keratocytes play the major role in keeping it transparent, healing its wounds, and synthesizing its components. This cell type secretes collagen I, V, VI, and keratin sulfate. Homo sapiens sequence collection cornea eye anterior stroma of cornea