Corneal epithelial cell migration machinery

The corneal epithelial cell migration machinery is a complex, integrated system of molecular components and signaling pathways responsible for the movement of epithelial cells across the corneal surface, primarily during wound healing (Stepp, 2006). This machinery involves the dynamic reorganization of the actin cytoskeleton, the formation and disassembly of focal adhesions mediated by integrins, and the activation of various growth factor receptors such as the Epidermal Growth Factor Receptor (EGFR) and Nerve Growth Factor (NGF) receptors (Zieske & Wegener, 2006). In a healthy eye, this system ensures the rapid repair of minor abrasions to maintain a smooth optical surface and prevent infection. However, in conditions like neurotrophic keratitis or persistent epithelial defects, this machinery is impaired, leading to chronic ulceration and potential corneal perforation (Bonini et al., 2018). Pharmacological agents like Cenegermin (rhNGF) or topical growth factors target specific nodes within this machinery to restore migratory capacity and promote ocular surface closure (Mastropasqua et al., 2020).

Other names

Corneal wound healing machineryCorneal epithelial migration system

Activation of growth factor receptors and integrin-mediated signaling pathways to promote actin cytoskeleton reorganization and cell motility.