Evidence map›Paper›PMID 19465925›Full record

ArticleNature biotechnology2009

Transfection of small RNAs globally perturbs gene regulation by endogenous microRNAs.

Aly A Khan, Doron Betel, Martin L Miller, Chris Sander, Christina S Leslie, Debora S Marks

Erratum issuedOpen access · greenAbstract read
In one paragraph

Article in Nature biotechnology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 323 papers.

0numbers the graph read from it
0cells of the map it votes in
323citing papers in PubMed
19.1field-weighted citation impact, top 1% 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

323 citing papers in PubMed, 531 citations in OpenAlex.

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  7. Strategies to eliminate native T cell receptors for adoptive T cell therapies.Molecular therapy : the journal of the American Society of Gene Therapy · 2026
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  17. Allele-specific depletion ofMolecular therapy. Oncology · 2025
    Article
  18. Review
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263 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

6 authors at 3 institutions in 2 countries.

Aly A KhanDepartment of Computer Science, Columbia University, New York, New York, USA.
Doron Betel
Martin L Miller
Chris Sander
Christina S Leslie
Debora S Marks
Memorial Sloan Kettering Cancer Center · USCenter for Systems Biology · USColumbia University · US

Funding

Nation Center: Multi-Scale Study- Cellular Networks(RMI)U54CA121852 · NCI · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI CALIFANO, ANDREA · 2005 to 2015
$37.4M
Application of MAGNet Tools to Gene Regulatory Networks in CancerR01CA124380 · NCI · SLOAN-KETTERING INST CAN RESEARCH · PI SANDER, CHRIS · 2008 to 2011
$2.6M
NCI NIH HHS CA121852NCI NIH HHS CA124380NCI NIH HHS U54 CA121852
6 · The paper itself

Abstract

Transfection of small RNAs (such as small interfering RNAs (siRNAs) and microRNAs (miRNAs)) into cells typically lowers expression of many genes. Unexpectedly, increased expression of genes also occurs. We investigated whether this upregulation results from a saturation effect--that is, competition among the transfected small RNAs and the endogenous pool of miRNAs for the intracellular machinery that processes small RNAs. To test this hypothesis, we analyzed genome-wide transcript responses from 151 published transfection experiments in seven different human cell types. We show that targets of endogenous miRNAs are expressed at significantly higher levels after transfection, consistent with impaired effectiveness of endogenous miRNA repression. This effect exhibited concentration and temporal dependence. Notably, the profile of endogenous miRNAs can be largely inferred by correlating miRNA sites with gene expression changes after transfections. The competition and saturation effects have practical implications for miRNA target prediction, the design of siRNA and short hairpin RNA (shRNA) genomic screens and siRNA therapeutics.

Indexed as

Gene Expression RegulationMicroRNAsRNA, Small InterferingTransfectionCell LineCell Line, TumorGene Expression ProfilingGene Knockdown TechniquesGenes, cdcHumansModels, GeneticRNA-Induced Silencing ComplexStatistics, NonparametricUp-RegulationMicroRNAsRNA-Induced Silencing ComplexRNA, Small Interfering

Identifiers

PMID19465925
PMCPMC2782465
OpenAlexW2020469175

What OpenQuestion holds

Textmetadata
LicenceTDM
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.