Abstract:
:Anophthalmia (A) and microphthalmia (M) are rare developmental anomalies that have significant effects on visual activity. In fraction of A/M subjects, single genetic defects have been identified as causative. In this study we analysed 65 Italian A/M patients, 21 of whom are syndromic, for mutations in SOX2, OTX2 and PAX6 genes. In syndromic patients the presence of genome imbalances through array CGH was also investigated. No mutations were found for OTX2 and PAX6 genes. Three causative SOX2 mutations were found in subjects with syndromic A. In a subject with syndromic signs and monolateral M, two de novo 6.26 Mb and 1.37 Mb deletions in 4q13.2q13.3 have been identified. A SOX2 missense (p.Ala161Ser) mutation was found in 1 out of 39 a subject with non-syndromic monolateral M. Alanine at position 161 is conserved along phylogeny and the p.Ala161Ser mutation is estimated pathogenic by in silico analysis. However, this mutation was also present in the unaffected patient's daughter.
journal_name
Eur J Med Genetjournal_title
European journal of medical geneticsauthors
Mauri L,Franzoni A,Scarcello M,Sala S,Garavelli L,Modugno A,Grammatico P,Patrosso MC,Piozzi E,Del Longo A,Gesu GP,Manfredini E,Primignani P,Damante G,Penco Sdoi
10.1016/j.ejmg.2014.12.005subject
Has Abstractpub_date
2015-02-01 00:00:00pages
66-70issue
2eissn
1769-7212issn
1878-0849pii
S1769-7212(14)00216-Xjournal_volume
58pub_type
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