Evidence map›Paper›PMID 22174841›Full record

ArticlePloS one2011

Development of allele-specific therapeutic siRNA in Meesmann epithelial corneal dystrophy.

Haihui Liao, Alan D Irvine, Caroline J Macewen, Kathryn H Weed, Louise Porter, Laura D Corden, A Bethany Gibson, Jonathan E Moore, Frances J D Smith, W H Irwin McLean and 1 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
3.4field-weighted citation impact, top 9% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

17 citing papers in PubMed, 47 citations in OpenAlex.

  1. Article
  2. A Novel Pathogenic Variant in theJournal of clinical medicine · 2025
    Article
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  5. Article
  6. Corneal dystrophies.Nature reviews. Disease primers · 2020
    Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 4 institutions in 2 countries.

Haihui LiaoDivision of Molecular Medicine, Colleges of Life Sciences and Medicine, Dentistry & Nursing, University of Dundee, Dundee, Scotland.
Alan D Irvine
Caroline J Macewen
Kathryn H Weed
Louise Porter
Laura D Corden
A Bethany Gibson
Jonathan E Moore
Frances J D Smith
W H Irwin McLean
C B Tara Moore
University of Dundee · GBNinewells Hospital · GBChildren's Health Ireland at Crumlin · IEUniversity of Ulster · GB

Funding

Department of Health 250Medical Research Council G0801742Medical Research Council G0802780
6 · The paper itself

Abstract

backgroundMeesmann epithelial corneal dystrophy (MECD) is an inherited eye disorder caused by dominant-negative mutations in either keratins K3 or K12, leading to mechanical fragility of the anterior corneal epithelium, the outermost covering of the eye. Typically, patients suffer from lifelong irritation of the eye and/or photophobia but rarely lose visual acuity; however, some individuals are severely affected, with corneal scarring requiring transplant surgery. At present no treatment exists which addresses the underlying pathology of corneal dystrophy. The aim of this study was to design and assess the efficacy and potency of an allele-specific siRNA approach as a future treatment for MECD. METHODS AND

findingsWe studied a family with a consistently severe phenotype where all affected persons were shown to carry heterozygous missense mutation Leu132Pro in the KRT12 gene. Using a cell-culture assay of keratin filament formation, mutation Leu132Pro was shown to be significantly more disruptive than the most common mutation, Arg135Thr, which is associated with typical, mild MECD. A siRNA sequence walk identified a number of potent inhibitors for the mutant allele, which had no appreciable effect on wild-type K12. The most specific and potent inhibitors were shown to completely block mutant K12 protein expression with negligible effect on wild-type K12 or other closely related keratins. Cells transfected with wild-type K12-EGFP construct show a predominantly normal keratin filament formation with only 5% aggregate formation, while transfection with mutant K12-EGFP construct resulted in a significantly higher percentage of keratin aggregates (41.75%; p<0.001 with 95% confidence limits). The lead siRNA inhibitor significantly rescued the ability to form keratin filaments (74.75% of the cells contained normal keratin filaments; p<0.001 with 95% confidence limits).

conclusionsThis study demonstrates that it is feasible to design highly potent siRNA against mutant alleles with single-nucleotide specificity for future treatment of MECD.

Indexed as

AllelesGene Transfer TechniquesBase SequenceCells, CulturedCorneal Dystrophy, Juvenile Epithelial of MeesmannGene SilencingHumansKeratinsMolecular Sequence DataMutant ProteinsProtein Structure, QuaternaryRNA, Small InterferingKeratinsMutant ProteinsRNA, Small Interfering

Identifiers

PMID22174841
PMCPMC3236202
OpenAlexW2021668804

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.