Familial exudative vitreoretinopathy (FEVR) is inherited retinal disorders with ocular manifestations that are caused by alterations in the Wnt signaling network. FEVR has an abnormal vascularization of the peripheral retina with the formation of retinal folds, retinal detachment, and in many cases the creation of a fibrovascular membrane located behind the lens. Mutations in NDP, FZD4, and LRP5 have been reported to be responsible for ophthalmic diseases including Norrie disease, FEVR, and osteoporosis pseudoglioma syndrome. The proteins encoded by these genes have all been shown to participate in the Wnt/Norrin signaling pathway. Recently, heterozygous mutations in TSPAN12, which is a component of the Norrin-FZD4-LRP5 signaling complex, have been found to be responsible for autosomal dominant FEVR.
Category
Nervous system disease
Brite
Human diseases in ICD-11 classification [BR:br08403]
20 Developmental anomalies
Structural developmental anomalies primarily affecting one body system
Structural developmental anomalies of the eye, eyelid or lacrimal apparatus
LA13 Structural developmental anomalies of the posterior segment of eye
H00589 Familial exudative vitreoretinopathy
Pathway-based classification of diseases [BR:br08402]
Signal transduction
nt06505 WNT signaling
H00589 Familial exudative vitreoretinopathy
Nikopoulos K, Venselaar H, Collin RW, Riveiro-Alvarez R, Boonstra FN, Hooymans JM, Mukhopadhyay A, Shears D, van Bers M, de Wijs IJ, van Essen AJ, Sijmons RH, Tilanus MA, van Nouhuys CE, Ayuso C, Hoefsloot LH, Cremers FP
Title
Overview of the mutation spectrum in familial exudative vitreoretinopathy and Norrie disease with identification of 21 novel variants in FZD4, LRP5, and NDP.
