Abstract:
:Angle-closure glaucoma (ACG) is a subset of glaucoma affecting 16 million people. Although 4 million people are bilaterally blind from ACG, the causative molecular mechanisms of ACG remain to be defined. High intraocular pressure induces glaucoma in ACG. High intraocular pressure traditionally was suggested to result from the iris blocking or closing the angle of the eye, thereby limiting aqueous humor drainage. Eyes from individuals with ACG often have a modestly decreased axial length, shallow anterior chamber and relatively large lens, features that predispose to angle closure. Here we show that genetic alteration of a previously unidentified serine protease (PRSS56) alters axial length and causes a mouse phenotype resembling ACG. Mutations affecting this protease also cause a severe decrease of axial length in individuals with posterior microphthalmia. Together, these data suggest that alterations of this serine protease may contribute to a spectrum of human ocular conditions including reduced ocular size and ACG.
journal_name
Nat Genetjournal_title
Nature geneticsauthors
Nair KS,Hmani-Aifa M,Ali Z,Kearney AL,Ben Salem S,Macalinao DG,Cosma IM,Bouassida W,Hakim B,Benzina Z,Soto I,Söderkvist P,Howell GR,Smith RS,Ayadi H,John SWdoi
10.1038/ng.813subject
Has Abstractpub_date
2011-06-01 00:00:00pages
579-84issue
6eissn
1061-4036issn
1546-1718pii
ng.813journal_volume
43pub_type
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