Brittle cornea syndrome (BCS) is a rare autosomal recessive generalized connective tissue disorder. It is characterized by extreme thinning and fragility of the cornea that may rupture in the absence of significant trauma leading to blindness. Keratoconus or keratoglobus, high myopia, blue sclerae, hyperelasticity of the skin, and hypermobility of the small joints are additional features of BCS. Mutations in transcription factors ZNF469 and PRDM5 cause BCS. Both transcription factors are suggested to act on a common pathway regulating extracellular matrix genes, particularly fibrillar collagens.
Category
Congenital malformation
Brite
Human diseases in ICD-11 classification [BR:br08403]
20 Developmental anomalies
Multiple developmental anomalies or syndromes
LD28 Syndromes with connective tissue involvement as a major feature
H01902 Brittle cornea syndrome
Rohrbach M, Spencer HL, Porter LF, Burkitt-Wright EM, Burer C, Janecke A, Bakshi M, Sillence D, Al-Hussain H, Baumgartner M, Steinmann B, Black GC, Manson FD, Giunta C
Title
ZNF469 frequently mutated in the brittle cornea syndrome (BCS) is a single exon gene possibly regulating the expression of several extracellular matrix components.
Burkitt Wright EMM, Spencer HL, Daly SB, Manson FDC, Zeef LAH, Urquhart J, Zoppi N, Bonshek R, Tosounidis I, Mohan M, Madden C, Dodds A, Chandler KE, Banka S, Au L, Clayton-Smith J, Khan N, Biesecker LG, Wilson M, Rohrbach M, Colombi M, Giunta C, Black GCM
Title
Mutations in PRDM5 in brittle cornea syndrome identify a pathway regulating extracellular matrix development and maintenance.
