Evidence map›Paper›PMID 25506695›Full record

ArticlePloS one2014

Targeting SR proteins improves SMN expression in spinal muscular atrophy cells.

Claribel D Wee, Mallory A Havens, Francine M Jodelka, Michelle L Hastings

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
2.3field-weighted citation impact, top 12% 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

42 citing papers in PubMed, 54 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Article
  5. 2'-Frontiers in molecular biosciences · 2024
    Article
  6. Article
  7. Review
  8. Review
  9. Gene Therapy in ALS and SMA: Advances, Challenges and Perspectives.International journal of molecular sciences · 2023
    Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
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  18. 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

4 authors at 1 institution in 1 country.

Claribel D WeeDepartment of Cell Biology and Anatomy, The Chicago Medical School, Rosalind Franklin University of Medicine and Science, North Chicago, Illinois, United States of America.
Mallory A HavensDepartment of Cell Biology and Anatomy, The Chicago Medical School, Rosalind Franklin University of Medicine and Science, North Chicago, Illinois, United States of America.
Francine M JodelkaDepartment of Cell Biology and Anatomy, The Chicago Medical School, Rosalind Franklin University of Medicine and Science, North Chicago, Illinois, United States of America.
Michelle L HastingsDepartment of Cell Biology and Anatomy, The Chicago Medical School, Rosalind Franklin University of Medicine and Science, North Chicago, Illinois, United States of America.
Rosalind Franklin University of Medicine and Science · US

Funding

Targeting SMN2 Alternative Splicing for the Treatment of Spinal Muscular AtrophyR01NS069759 · NINDS · ROSALIND FRANKLIN UNIV OF MEDICINE & SCI · PI HASTINGS, MICHELLE L · 2010 to 2014
$1.6M
The Identification and Manipulation of RNA Splicing Factor Regulators in Spinal MF31NS076237 · NINDS · ROSALIND FRANKLIN UNIV OF MEDICINE & SCI · PI HAVENS, MALLORY ANN · 2011 to 2013
$86k
NIH HHS S10 OD01662NINDS NIH HHS 1F31NS076237NINDS NIH HHS F31 NS076237NINDS NIH HHS R01 NS069759PHS HHS C76 HF03610-01-00
6 · The paper itself

Abstract

Spinal muscular atrophy (SMA) is one of the most common inherited causes of pediatric mortality. SMA is caused by deletions or mutations in the survival of motor neuron 1 (SMN1) gene, which results in SMN protein deficiency. Humans have a centromeric copy of the survival of motor neuron gene, SMN2, which is nearly identical to SMN1. However, SMN2 cannot compensate for the loss of SMN1 because SMN2 has a single-nucleotide difference in exon 7, which negatively affects splicing of the exon. As a result, most mRNA produced from SMN2 lacks exon 7. SMN2 mRNA lacking exon 7 encodes a truncated protein with reduced functionality. Improving SMN2 exon 7 inclusion is a goal of many SMA therapeutic strategies. The identification of regulators of exon 7 inclusion may provide additional therapeutic targets or improve the design of existing strategies. Although a number of regulators of exon 7 inclusion have been identified, the function of most splicing proteins in exon 7 inclusion is unknown. Here, we test the role of SR proteins and hnRNP proteins in SMN2 exon 7 inclusion. Knockdown and overexpression studies reveal that SRSF1, SRSF2, SRSF3, SRSF4, SRSF5, SRSF6, SRSF7, SRSF11, hnRNPA1/B1 and hnRNP U can inhibit exon 7 inclusion. Depletion of two of the most potent inhibitors of exon 7 inclusion, SRSF2 or SRSF3, in cell lines derived from SMA patients, increased SMN2 exon 7 inclusion and SMN protein. Our results identify novel regulators of SMN2 exon 7 inclusion, revealing potential targets for SMA therapeutics.

Indexed as

Cell LineExonsFemaleGene ExpressionGene Knockdown TechniquesHeterogeneous-Nuclear RibonucleoproteinsHumansMuscular Atrophy, SpinalNuclear ProteinsRibonucleoproteinsRNA-Binding ProteinsRNA SplicingSerine-Arginine Splicing FactorsSurvival of Motor Neuron 2 ProteinHeterogeneous-Nuclear RibonucleoproteinsNuclear ProteinsRibonucleoproteinsRNA-Binding ProteinsSerine-Arginine Splicing FactorsSMN2 protein, humanSRSF2 protein, humanSRSF3 protein, humanSurvival of Motor Neuron 2 Protein

Identifiers

PMID25506695
PMCPMC4266657
OpenAlexW1998671407

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.