Evidence map›Paper›PMID 22362925›Full record

ArticleHuman molecular genetics2012

An exon-specific U1 small nuclear RNA (snRNA) strategy to correct splicing defects.

Eugenio Fernandez Alanis, Mirko Pinotti, Andrea Dal Mas, Dario Balestra, Nicola Cavallari, Malgorzata E Rogalska, Francesco Bernardi, Franco Pagani

Abstract read
In one paragraph

Article in Human molecular genetics, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 67 papers.

0numbers the graph read from it
0cells of the map it votes in
67citing papers in PubMed
4.1field-weighted citation impact, top 5% 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

67 citing papers in PubMed, 101 citations in OpenAlex.

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  14. Development of Engineered-U1 snRNA Therapies: Current Status.International journal of molecular sciences · 2023
    Review
  15. Review
  16. Article
  17. Article
  18. Article
  19. Autosomal dominant optic atrophy: A novel treatment forMolecular therapy. Nucleic acids · 2021
    Article
  20. Article

7 more citing papers are in PubMed but not listed here.

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

8 authors at 2 institutions in 1 country.

Eugenio Fernandez AlanisHuman Molecular Genetics, International Centre for Genetic Engineering and Biotechnology, Trieste, Italy.
Mirko Pinotti
Andrea Dal Mas
Dario Balestra
Nicola Cavallari
Malgorzata E Rogalska
Francesco Bernardi
Franco Pagani
International Centre for Genetic Engineering and Biotechnology · ITUniversity of Ferrara · IT

Funding

Telethon GGP09183
6 · The paper itself

Abstract

A significant proportion of disease-causing mutations affect precursor-mRNA splicing, inducing skipping of the exon from the mature transcript. Using F9 exon 5, CFTR exon 12 and SMN2 exon 7 models, we characterized natural mutations associated to exon skipping in Haemophilia B, cystic fibrosis and spinal muscular atrophy (SMA), respectively, and the therapeutic splicing rescue by using U1 small nuclear RNA (snRNA). In minigene expression systems, loading of U1 snRNA by complementarity to the normal or mutated donor splice sites (5'ss) corrected the exon skipping caused by mutations at the polypyrimidine tract of the acceptor splice site, at the consensus 5'ss or at exonic regulatory elements. To improve specificity and reduce potential off-target effects, we developed U1 snRNA variants targeting non-conserved intronic sequences downstream of the 5'ss. For each gene system, we identified an exon-specific U1 snRNA (ExSpeU1) able to rescue splicing impaired by the different types of mutations. Through splicing-competent cDNA constructs, we demonstrated that the ExSpeU1-mediated splicing correction of several F9 mutations results in complete restoration of secreted functional factor IX levels. Furthermore, two ExSpeU1s for SMA improved SMN exon 7 splicing in the chromosomal context of normal cells. We propose ExSpeU1s as a novel therapeutic strategy to correct, in several human disorders, different types of splicing mutations associated with defective exon definition.

Indexed as

ExonsAlternative SplicingCystic Fibrosis Transmembrane Conductance RegulatorHemophilia BHumansIntronsMuscular Atrophy, SpinalMutationRNA PrecursorsRNA, Small NuclearRNA Splice SitesRNA SplicingCystic Fibrosis Transmembrane Conductance RegulatorRNA PrecursorsRNA, Small NuclearRNA Splice SitesU1 small nuclear RNA

Identifiers

PMID22362925
PMCPMC3349419
OpenAlexW2127719340

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

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.