Abstract
The Wnt-signaling pathway is a known regulator of stem cell maintenance, cellular proliferation and differentiation, and cancer development in various tissues. Wnt proteins play a central role during various stages of retinal development; retinal field establishment, retinal and hyaloid vasculogeneis, cornea and lens development, eye field formation, and maintenance of retinal stem cell and neuronal specification in many species are Wnt-regulated processes. Uncontrolled Wnt signaling may cause retinal diseases such as familial exudative vitroretinopathy, retinitis pigmentosa, and Norrie’s disease, further underscoring the importance of the Wnt-signaling pathway in the retina. This review summarizes major developments and discoveries regarding the role of the Wnt-signaling pathway as it pertains to retinal development and disease.
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