Evidence map›Paper›PMID 22174840›Full record

ArticlePloS one2011

Improved siRNA/shRNA functionality by mismatched duplex.

Haoquan Wu, Hongming Ma, Chunting Ye, Danielle Ramirez, Shuiping Chen, Jessica Montoya, Premlata Shankar, Xiaozhong A Wang, N Manjunath

Open access · goldAbstract 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 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.1field-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

22 citing papers in PubMed, 34 citations in OpenAlex.

  1. Article
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  6. microRNA strand selection: Unwinding the rules.Wiley interdisciplinary reviews. RNA · 2021
    Review
  7. Article
  8. Review
  9. Article
  10. Review
  11. Review
  12. Review
  13. Article
  14. Article
  15. Multiplexing seven miRNA-Based shRNAs to suppress HIV replication.Molecular therapy : the journal of the American Society of Gene Therapy · 2015
    Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Towards the elements of successful insect RNAi.Journal of insect physiology · 2013
    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

9 authors at 3 institutions in 1 country.

Haoquan WuCenter of Excellence in Infectious Disease Research, Department of Biomedical Sciences, Paul L Foster School of Medicine, Texas Tech University Health Sciences Center, El Paso, Texas, United States of America. haoquan.wu@ttuhsc.edu
Hongming Ma
Chunting Ye
Danielle Ramirez
Shuiping Chen
Jessica Montoya
Premlata Shankar
Xiaozhong A Wang
N Manjunath
Texas Tech University Health Sciences Center · USTexas Tech University · USNorthwestern University · US

Funding

BROAD-SPECTRUM RNAi THERAPEUTICS FOR FLAVIVIRAL ENCEPHALITISU01AI075419 · NIAID · TEXAS TECH UNIVERSITY HEALTH SCIS CENTER · PI SWAMY, MANJUNATH NARASIMHA · 2007 to 2009
$2.9M
NIAID NIH HHS AI075419NIAID NIH HHS U01 AI075419
6 · The paper itself

Abstract

siRNA (small interfering RNA) and shRNA (small hairpin RNA) are powerful and commonly used tools in biomedical research. Currently, siRNAs are generally designed as two 21 nt strands of RNA that include a 19 nt completely complementary part and a 2 nt overhang. However, since the si/shRNAs use the endogenous miRNA machinery for gene silencing and the miRNAs are generally 22 nt in length and contain multiple internal mismatches, we tested if the functionality can be increased by designing the si/shRNAs to mimic a miRNA structure. We systematically investigated the effect of single or multiple mismatches introduced in the passenger strand at different positions on siRNA functionality. Mismatches at certain positions could significantly increase the functionality of siRNAs and also, in some cases decreased the unwanted passenger strand functionality. The same strategy could also be used to design shRNAs. Finally, we showed that both si and miRNA structured oligos (siRNA with or without mismatches in the passenger strand) can repress targets in all individual Ago containing cells, suggesting that the Ago proteins do not differentiate between si/miRNA-based structure for silencing activity.

Indexed as

Argonaute ProteinsBase Pair MismatchBase SequenceConserved SequenceHEK293 CellsHumansNucleic Acid ConformationRNA-Induced Silencing ComplexRNA, Small InterferingThermodynamicsArgonaute ProteinsRNA-Induced Silencing ComplexRNA, Small Interfering

Identifiers

PMID22174840
PMCPMC3235145
OpenAlexW2170103998

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.