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Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-35611

Zuercher, J; Neidhardt, J; Magyar, I; Labs, S; Moore, A; Tanner, F C; Waseem, N; Schorderet, D F; Munier, F L; Bhattacharya, S; Berger, W; Kloeckener-Gruissem, B (2010). Alterations of the 5'untranslated region of SLC16A12 lead to age-related cataract. Investigative Ophthalmology and Visual Science, 51(7):3354-3361.

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PURPOSE. Knowledge of genetic factors predisposing to age-related cataract is very limited. The aim of this study was to identify DNA sequences that either lead to or predispose for this disease. METHODS. The candidate gene SLC16A12, which encodes a solute carrier of the monocarboxylate transporter family, was sequenced in 484 patients with cataract (134 with juvenile cataract, 350 with age-related cataract) and 190 control subjects. Expression studies included luciferase reporter assay and RT-PCR experiments. RESULTS. One patient with age-related cataract showed a novel heterozygous mutation (c.-17A>G) in the 5'untranslated region (5'UTR). This mutation is in cis with the minor G-allele of the single nucleotide polymorphism (SNP) rs3740030 (c.-42T/G), also within the 5'UTR. Using a luciferase reporter assay system, a construct with the patient's haplotype caused a significant upregulation of luciferase activity. In comparison, the SNP G-allele alone promoted less activity, but that amount was still significantly higher than the amount of the common T-allele. Analysis of SLC16A12 transcripts in surrogate tissue demonstrated striking allele-specific differences causing 5'UTR heterogeneity with respect to sequence and quantity. These differences in gene expression were mirrored in an allele-specific predisposition to age-related cataract, as determined in a Swiss population (odds ratio approximately 2.2; confidence intervals, 1.23-4.3). CONCLUSIONS. The monocarboxylate transporter SLC16A12 may contribute to age-related cataract. Sequences within the 5'UTR modulate translational efficiency with pathogenic consequences.


19 citations in Web of Science®
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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > Institute of Medical Molecular Genetics
Dewey Decimal Classification:570 Life sciences; biology
610 Medicine & health
Uncontrolled Keywords:5' Untranslated Regions, Aged, Aging, Cataract, Cell Line, Cloning, Molecular, DNA Primers, Female, Gene Expression Regulation, Genetic Predisposition to Disease, Genetic Vectors, Humans, Monocarboxylic Acid Transporters, Muscle, Smooth, Vascular, Mutation, Plasmids, Polymorphism, Single Nucleotide, Radial Artery, Reverse Transcriptase Polymerase Chain Reaction
Date:July 2010
Deposited On:27 Oct 2010 11:55
Last Modified:05 Apr 2016 14:14
Publisher:Association for Research in Vision and Ophthalmology
Publisher DOI:10.1167/iovs.10-5193
PubMed ID:20181839

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