Evidence map›Paper›PMID 19848583›Full record

ArticleHuman gene therapy2008

A negatively acting bifunctional RNA increases survival motor neuron both in vitro and in vivo.

Alexa Dickson, Erkan Osman, Christian L Lorson

Open access · greenAbstract read
In one paragraph

Article in Human gene therapy, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
4.3field-weighted citation impact, top 6% 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

37 citing papers in PubMed, 63 citations in OpenAlex.

  1. Article
  2. Article
  3. Strategies for programmable manipulation of alternative splicing.Current opinion in genetics & development · 2024
    Review
  4. Article
  5. Review
  6. Article
  7. Review
  8. Review
  9. Developing therapies for spinal muscular atrophy.Annals of the New York Academy of Sciences · 2016
    Review
  10. Spinal Muscular Atrophy.Neurologic clinics · 2015
    Review
  11. Review
  12. Article
  13. Article
  14. Dual masking of specific negative splicing regulatory elements resulted in maximal exon 7 inclusion of SMN2 gene.Molecular therapy : the journal of the American Society of Gene Therapy · 2014
    Article
  15. Article
  16. Article
  17. Applicability of histone deacetylase inhibition for the treatment of spinal muscular atrophy.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2013
    Review
  18. Article
  19. Review
  20. Review
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

3 authors at 2 institutions in 1 country.

Alexa DicksonDepartment of Molecular Microbiology and Immunology, Life Sciences Center, University of Missouri-Columbia, Columbia, MO 65211, USA.
Erkan Osman
Christian L Lorson
University of Missouri · USMissouri College · US

Funding

Determinants that regulate splicing of SMNR01NS041584 · NINDS · UNIVERSITY OF MISSOURI-COLUMBIA · PI LORSON, CHRISTIAN L. · 2001 to 2010
$2.8M
Stimulating SMN2 exon 7 inclusion with short RNAsR01HD054413 · NICHD · UNIVERSITY OF MISSOURI-COLUMBIA · PI LORSON, CHRISTIAN L. · 2007 to 2011
$1.4M
NICHD NIH HHS R01 HD054413NINDS NIH HHS R01 NS41584
6 · The paper itself

Abstract

Spinal muscular atrophy (SMA) is an autosomal recessive neuromuscular disorder and is the leading genetic cause of infant mortality. SMA is caused by the loss of survival motor neuron-1 (SMN1). In humans, a nearly identical copy gene is present called SMN2, but this gene cannot compensate for the loss of SMN1 because of a single silent nucleotide difference in SMN2 exon 7. This single-nucleotide difference attenuates an exonic splice enhancer, resulting in the production of an alternatively spliced isoform lacking exon 7, which is essential for protein function. SMN2, however, is a critical disease modifier and is an outstanding target for therapeutic intervention because all SMA patients retain SMN2 and SMN2 maintains the same coding sequence as SMN1. Therefore, compounds or molecules that increase SMN2 exon 7 inclusion hold great promise for SMA therapeutics. Bifunctional RNAs have been previously used to increase SMN protein levels and derive their name from the presence of two domains: an antisense RNA sequence specific to the target RNA and an untethered RNA segment that serves as a binding platform for splicing factors. This study was designed to develop negatively acting bifunctional RNAs that recruit hnRNPA1 to exon 8 and block the general splicing machinery from the exon 8. By blocking the downstream splice site, this could competitively favor the inclusion of SMN exon 7 and therefore increase full-length SMN production. Here we identify a bifunctional RNA that stimulated full-length SMN expression in a variety of cell-based assays including SMA patient fibroblasts. Importantly, this molecule was also able to induce SMN expression in a previously described mouse model of SMA and demonstrates a novel therapeutic approach for SMA as well as a variety of diseases caused by a defect in splicing.

Indexed as

AnimalsAnimals, NewbornBlotting, WesternCells, CulturedExonsFibroblastsGenetic VectorsHeLa CellsHeterogeneous Nuclear Ribonucleoprotein A1Heterogeneous-Nuclear Ribonucleoprotein Group A-BHumansIn Vitro TechniquesLuciferasesMiceMice, KnockoutMuscular Atrophy, SpinalHeterogeneous Nuclear Ribonucleoprotein A1Heterogeneous-Nuclear Ribonucleoprotein Group A-BhnRNPA1 protein, humanHnrnpa1 protein, mouseLuciferasesRNASMN2 protein, humanSurvival of Motor Neuron 1 ProteinSurvival of Motor Neuron 2 Protein

Identifiers

PMID19848583
PMCPMC2940461
OpenAlexW1992500475

What OpenQuestion holds

Textmetadata
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.