Evidence map›Paper›PMID 21542669›Full record

ArticleHuman gene therapy2011

Cardiac gene transfer of short hairpin RNA directed against phospholamban effectively knocks down gene expression but causes cellular toxicity in canines.

Lawrence T Bish, Meg M Sleeper, Caryn Reynolds, Jeffrey Gazzara, Elanor Withnall, Gretchen E Singletary, George Buchlis, Daniel Hui, Katherine A High, Guangping Gao and 2 more

Open access · greenAbstract read
In one paragraph

Article in Human gene therapy, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
4.6field-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

32 citing papers in PubMed, 52 citations in OpenAlex.

  1. Review
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  11. Translation of MicroRNA-Based Huntingtin-Lowering Therapies from Preclinical Studies to the Clinic.Molecular therapy : the journal of the American Society of Gene Therapy · 2018
    Review
  12. Review
  13. Article
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  18. Recombinant AAV as a platform for translating the therapeutic potential of RNA interference.Molecular therapy : the journal of the American Society of Gene Therapy · 2014
    Review
  19. Article
  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

12 authors at 1 institution in 1 country.

Lawrence T BishDepartment of Physiology, University of Pennsylvania School of Medicine, Philadelphia, PA 19104, USA. bish@mail.med.upenn.edu
Meg M Sleeper
Caryn Reynolds
Jeffrey Gazzara
Elanor Withnall
Gretchen E Singletary
George Buchlis
Daniel Hui
Katherine A High
Guangping Gao
James M Wilson
H Lee Sweeney
University of Pennsylvania · US

Funding

VECTOR COREP01HL059407 · NHLBI · UNIVERSITY OF PENNSYLVANIA · PI LIMBERIS, MARIA P. · 1999 to 2019
$35.6M
Training and education CoreU54AR052646 · NIAMS · UNIVERSITY OF PENNSYLVANIA · PI MCNALLY, ELIZABETH M, SWEENEY, H LEE · 2005 to 2020
$24.1M
X-LINKED SEVERE COMBINED IMMUNODEFICIENCY IN THE DOGP40RR002512 · NCRR · UNIVERSITY OF PENNSYLVANIA · PI HASKINS, MARK E · 1985 to 2011
$7.6M
TRAINING IN LUNG CELL AND MOLECULAR BIOLOGYT32HL007748 · NHLBI · UNIVERSITY OF PENNSYLVANIA · PI FISHER, ARON B. · 1994 to 2013
$3.5M
NCRR NIH HHS RR02512NHLBI NIH HHS P01-HL059407NHLBI NIH HHS T32-HL-007748NIAMS NIH HHS U54-AR052646
6 · The paper itself

Abstract

Derangements in calcium cycling have been described in failing hearts, and preclinical studies have suggested that therapies aimed at correcting this defect can lead to improvements in cardiac function and survival. One strategy to improve calcium cycling would be to inhibit phospholamban (PLB), the negative regulator of SERCA2a that is upregulated in failing hearts. The goal of this study was to evaluate the safety and efficacy of using adeno-associated virus (AAV)-mediated cardiac gene transfer of short hairpin RNA (shRNA) to knock down expression of PLB. Six dogs were treated with self-complementary AAV serotype 6 (scAAV6) expressing shRNA against PLB. Three control dogs were treated with empty AAV6 capsid, and two control dogs were treated with scAAV6 expressing dominant negative PLB. Vector was delivered via a percutaneously inserted cardiac injection catheter. PLB mRNA and protein expression were analyzed in three of six shRNA dogs between days 16 and 26. The other three shRNA dogs and five control dogs were monitored long-term to assess cardiac safety. PLB mRNA was reduced 16-fold, and PLB protein was reduced 5-fold, with treatment. Serum troponin elevation and depressed cardiac function were observed in the shRNA group only at 4 weeks. An enzyme-linked immunospot assay failed to detect any T cells reactive to AAV6 capsid in peripheral blood mononuclear cells, heart, or spleen. Microarray analysis revealed alterations in cardiac expression of several microRNAs with shRNA treatment. AAV6-mediated cardiac gene transfer of shRNA effectively knocks down PLB expression but is associated with severe cardiac toxicity. Toxicity may result from dysregulation of endogenous microRNA pathways.

Indexed as

Gene Transfer TechniquesAnimalsCalciumCalcium-Binding ProteinsDependovirusDogsGene ExpressionGene Knockdown TechniquesGenetic VectorsMonocytesMyocytes, CardiacPhospholambanRNA, MessengerRNA, Small InterferingTroponinCalciumCalcium-Binding ProteinsPhospholambanRNA, MessengerRNA, Small InterferingTroponin

Identifiers

PMID21542669
PMCPMC3159526
OpenAlexW1978687929

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.