Evidence map›Paper›PMID 17360756›Full record

ArticleJournal of virology2007

Small interfering RNAs against the TAR RNA binding protein, TRBP, a Dicer cofactor, inhibit human immunodeficiency virus type 1 long terminal repeat expression and viral production.

Helen S Christensen, Aïcha Daher, Kaitlin J Soye, Lisa B Frankel, Marina R Alexander, Sébastien Lainé, Sylvie Bannwarth, Chi L Ong, Sean W L Chung, Shahan M Campbell and 2 more

Open access · greenAbstract read
In one paragraph

Article in Journal of virology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed, 1 pooled it
2.9field-weighted citation impact, top 9% 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

39 citing papers in PubMed, 1 synthesis or guideline pooled it, 64 citations in OpenAlex.

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  15. Expression of protein TARBP1 in human hepatocellular carcinoma and its prognostic significance.International journal of clinical and experimental pathology · 2015
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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 3 institutions in 3 countries.

Helen S ChristensenDepartment of Microbiology and Immunology, University of Melbourne, Parkville, Australia.
Aïcha Daher
Kaitlin J Soye
Lisa B Frankel
Marina R Alexander
Sébastien Lainé
Sylvie Bannwarth
Chi L Ong
Sean W L Chung
Shahan M Campbell
Damian F J Purcell
Anne Gatignol
University of Melbourne · AUInstitute for Medical Research · MYMcGill University · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

RNA interference (RNAi) is now widely used for gene silencing in mammalian cells. The mechanism uses the RNA-induced silencing complex, in which Dicer, Ago2, and the human immunodeficiency virus type 1 (HIV-1) TAR RNA binding protein (TRBP) are the main components. TRBP is a protein that increases HIV-1 expression and replication by inhibition of the interferon-induced protein kinase PKR and by increasing translation of viral mRNA. After HIV infection, TRBP could restrict the viral RNA through its activity in RNAi or could contribute more to the enhancement of viral replication. To determine which function will be predominant in the virological context, we analyzed whether the inhibition of its expression could enhance or decrease HIV replication. We have generated small interfering RNAs (siRNAs) against TRBP and found that they decrease HIV-1 long terminal repeat (LTR) basal expression 2-fold, and the LTR Tat transactivated level up to 10-fold. In the context of HIV replication, siRNAs against TRBP decrease the expression of viral genes and inhibit viral production up to fivefold. The moderate increase in PKR expression and activation indicates that it contributes partially to viral gene inhibition. The moderate decrease in micro-RNA (miRNA) biogenesis by TRBP siRNAs suggests that in the context of HIV replication, TRBP functions other than RNAi are predominant. In addition, siRNAs against Dicer decrease viral production twofold and impede miRNA biogenesis. These results suggest that, in the context of HIV replication, TRBP contributes mainly to the enhancement of virus production and that Dicer does not mediate HIV restriction by RNAi.

Indexed as

RNA InterferenceVirus ReplicationGene ExpressionGenes, ReporterGreen Fluorescent ProteinsHeLa CellsHIV-1HIV Long Terminal RepeatHIV Reverse TranscriptaseHumansLuciferasesMicroRNAsRibonuclease IIIRNA-Binding ProteinsRNA, Small InterferingTrans-Activation Responsive RNA-Binding Proteinenhanced green fluorescent proteinGreen Fluorescent ProteinsHIV Reverse TranscriptaseLuciferasesMicroRNAsRibonuclease IIIRNA-Binding ProteinsRNA, Small InterferingTrans-Activation Responsive RNA-Binding Protein

Identifiers

PMID17360756
PMCPMC1900231
OpenAlexW2113071287

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.