Evidence map›Paper›PMID 24086659›Full record

ArticlePloS one2013

Systemic delivery of shRNA by AAV9 provides highly efficient knockdown of ubiquitously expressed GFP in mouse heart, but not liver.

Bryan A Piras, Daniel M O'Connor, Brent A French

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2013. 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
2.6field-weighted citation impact, top 11% 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, 30 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. MicroRNAs as Potential Biomarkers in Atherosclerosis.International journal of molecular sciences · 2019
    Review
  9. Article
  10. Review
  11. Preparation of rAAV9 to Overexpress or Knockdown Genes in Mouse Hearts.Journal of visualized experiments : JoVE · 2016
    Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. AAV-mediated gene therapy for atherosclerosis.Current atherosclerosis reports · 2014
    Review
  17. Article
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 1 institution in 1 country.

Bryan A PirasDepartment of Biomedical Engineering, University of Virginia, Charlottesville, Virginia, United States of America.
Daniel M O'Connor
Brent A French
University of Virginia · US

Funding

GENE THERAPY FOR MYOCARDIAL STUNNING AND INFARCTIONR01HL058582 · NHLBI · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI FRENCH, BRENT A · 1997 to 2006
$872k
NHLBI NIH HHS R01 HL058582
6 · The paper itself

Abstract

AAV9 is a powerful gene delivery vehicle capable of providing long-term gene expression in a variety of cell types, particularly cardiomyocytes. The use of AAV-delivery for RNA interference is an intense area of research, but a comprehensive analysis of knockdown in cardiac and liver tissues after systemic delivery of AAV9 has yet to be reported. We sought to address this question by using AAV9 to deliver a short-hairpin RNA targeting the enhanced green fluorescent protein (GFP) in transgenic mice that constitutively overexpress GFP in all tissues. The expression cassette was initially tested in vitro and we demonstrated a 61% reduction in mRNA and a 90% reduction in GFP protein in dual-transfected 293 cells. Next, the expression cassette was packaged as single-stranded genomes in AAV9 capsids to test cardiac GFP knockdown with several doses ranging from 1.8×10(10) to 1.8×10(11) viral genomes per mouse and a dose-dependent response was obtained. We then analyzed GFP expression in both heart and liver after delivery of 4.4×10(11) viral genomes per mouse. We found that while cardiac knockdown was highly efficient, with a 77% reduction in GFP mRNA and a 71% reduction in protein versus control-treated mice, there was no change in liver expression. This was despite a 4.5-fold greater number of viral genomes in the liver than in the heart. This study demonstrates that single-stranded AAV9 vectors expressing shRNA can be used to achieve highly efficient cardiac-selective knockdown of GFP expression that is sustained for at least 7 weeks after the systemic injection of 8 day old mice, with no change in liver expression and no evidence of liver damage despite high viral genome presence in the liver.

Indexed as

Gene Transfer TechniquesRNA InterferenceAnimalsBlotting, WesternDependovirusDNA PrimersGene Knockdown TechniquesGenetic VectorsGreen Fluorescent ProteinsLiverMiceMice, TransgenicMicroscopy, FluorescenceMyocardiumRNA, Small InterferingDNA PrimersGreen Fluorescent ProteinsRNA, Small Interfering

Identifiers

PMID24086659
PMCPMC3782464
OpenAlexW2016208225

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.