Evidence map›Paper›PMID 22031824›Full record

ArticlePloS one2011

Polymerase II promoter strength determines efficacy of microRNA adapted shRNAs.

Robert Jan Lebbink, Maggie Lowe, Theresa Chan, Htet Khine, Xiaoyin Wang, Michael T McManus

Abstract read
In one paragraph

Article in PloS one, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
–field-weighted citation impact
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

26 citing papers in PubMed.

  1. Article
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  7. Review
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  11. Plasmid-driven RNA interference in fish cell lines.In vitro cellular & developmental biology. Animal · 2022
    Article
  12. Article
  13. RNA biology · 2021
    Article
  14. Article
  15. Review
  16. Article
  17. Article
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  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

6 authors.

Robert Jan LebbinkDepartment of Microbiology and Immunology, Diabetes Center, University of California San Francisco, San Francisco, California, United States of America.
Maggie Lowe
Theresa Chan
Htet Khine
Xiaoyin Wang
Michael T McManus

Funding

New Frontiers for Small RNA TherapiesR01GM080783 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI MCMANUS, MICHAEL T · 2007 to 2011
$1.5M
NIGMS NIH HHS R01 GM080783NIGMS NIH HHS R01GM80783
6 · The paper itself

Abstract

Since the discovery of RNAi and microRNAs more than 10 years ago, much research has focused on the development of systems that usurp microRNA pathways to downregulate gene expression in mammalian cells. One of these systems makes use of endogenous microRNA pri-cursors that are expressed from polymerase II promoters where the mature microRNA sequence is replaced by gene specific duplexes that guide RNAi (shRNA-miRs). Although shRNA-miRs are effective in directing target mRNA knockdown and hence reducing protein expression in many cell types, variability of RNAi efficacy in cell lines has been an issue. Here we show that the choice of the polymerase II promoter used to drive shRNA expression is of critical importance to allow effective mRNA target knockdown. We tested the abundance of shRNA-miRs expressed from five different polymerase II promoters in 6 human cell lines and measured their ability to drive target knockdown. We observed a clear positive correlation between promoter strength, siRNA expression levels, and protein target knockdown. Differences in RNAi from the shRNA-miRs expressed from the various promoters were particularly pronounced in immune cells. Our findings have direct implications for the design of shRNA-directed RNAi experiments and the preferred RNAi system to use for each cell type.

Indexed as

Cell LineCell Line, TumorGenetic VectorsGreen Fluorescent ProteinsHeLa CellsHT29 CellsHumansJurkat CellsMicroRNAsPromoter Regions, GeneticRNA Polymerase IIRNA, Small Interferingenhanced green fluorescent proteinGreen Fluorescent ProteinsMicroRNAsRNA Polymerase IIRNA, Small Interfering

Identifiers

PMID22031824
PMCPMC3198731

What OpenQuestion holds

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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.