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Extended extraocular phenotype of PROM1 mutation in kindreds with known autosomal dominant macular dystrophy

Arrigoni, Francesca I., Matarin, Mar, Thompson, Pamela J., Michaelides, Michel, McClements, Michelle E., Redmond, Elizabeth, Clarke, Lindsey, Ellins, Elizabeth Anne ORCID:, Mohamed, Saifullah, Pavord, Ian, Hunt, David M., Moore, Anthony T., Halcox, Julian P. J. and Sisodiya, Sanjay M. 2011. Extended extraocular phenotype of PROM1 mutation in kindreds with known autosomal dominant macular dystrophy. European Journal of Human Genetics 19 (2) , pp. 131-137. 10.1038/ejhg.2010.147

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Mutations in prominin 1 (PROM1) have been shown to result in retinitis pigmentosa, macular degeneration and cone-rod dystrophy. Because of the putative role of PROM1 in hippocampal neurogenesis, we examined two kindreds with the same R373C PROM1 missense mutation using our established paradigm to study brain structure and function. As the protein encoded by PROM1, known as CD133, is used to identify stem/progenitor cells that can be found in peripheral blood and reflect endothelial reparatory mechanisms, other parameters were subsequently examined that included measures of vascular function, endothelial function and angiogenic capacity. We found that aspects of endothelial function assayed ex vivo were abnormal in patients with the R373C PROM1 mutation, with impaired adhesion capacity and higher levels of cellular damage. We also noted renal infections, haematuria and recurrent miscarriages possibly reflecting consequences of abnormal tubular modelling. Further studies are needed to confirm these findings.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Medicine
Subjects: Q Science > QH Natural history > QH426 Genetics
Uncontrolled Keywords: PROM1, CD133, endothelial, tubule, sella turcica
Publisher: Nature Publishing Group
ISSN: 1018-4813
Last Modified: 20 Oct 2022 08:57

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