Evidence map›Paper›PMID 28340355›Full record

ArticleVirology2017

The Human Immunodeficiency Virus 1 ASP RNA promotes viral latency by recruiting the Polycomb Repressor Complex 2 and promoting nucleosome assembly.

Juan C Zapata, Federica Campilongo, Robert A Barclay, Catherine DeMarino, Maria D Iglesias-Ussel, Fatah Kashanchi, Fabio Romerio

Open access · hybridAbstract read
In one paragraph

Article in Virology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
66citing papers in PubMed, 1 pooled it
3.7field-weighted citation impact, top 6% 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

66 citing papers in PubMed, 1 synthesis or guideline pooled it, 83 citations in OpenAlex.

  1. Pooled it
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  17. Creation of the HIV-1 antisense geneMicrobiology spectrum · 2024
    Article
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  20. Article

6 more citing papers are in PubMed but not listed here.

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

7 authors at 2 institutions in 1 country.

Juan C ZapataInstitute of Human Virology, University of Maryland School of Medicine, Baltimore, MD, USA.
Federica CampilongoInstitute of Human Virology, University of Maryland School of Medicine, Baltimore, MD, USA.
Robert A BarclayLaboratory of Molecular Virology, George Mason University, Manassas, VA, USA.
Catherine DeMarinoLaboratory of Molecular Virology, George Mason University, Manassas, VA, USA.
Maria D Iglesias-UsselInstitute of Human Virology, University of Maryland School of Medicine, Baltimore, MD, USA.
Fatah KashanchiLaboratory of Molecular Virology, George Mason University, Manassas, VA, USA.
Fabio RomerioInstitute of Human Virology, University of Maryland School of Medicine, Baltimore, MD, USA. Electronic address: fromerio@ihv.umaryland.edu.
University of Maryland, Baltimore · USGeorge Mason University · US

Funding

HIV1 INHIBITION USING TAT PEPTIDE DERIVATIVESR01AI043894 · NIAID · UNIV OF MED/DENT OF NJ-NJ MEDICAL SCHOOL · PI KASHANCHI, FATAH · 1999 to 2015
$4.4M
Quantification of the HIV-1 Reservoir by Immuno-PCRR01AI120008 · NIAID · UNIVERSITY OF MARYLAND BALTIMORE · PI HEREDIA, ALONSO, LICHTERFELD, MATHIAS · 2015 to 2019
$1.9M
Cell Surface Marker Combinations to Identify Latently Infected CD4+ Cells In VivoR21AI106508 · NIAID · UNIVERSITY OF MARYLAND BALTIMORE · PI ROMERIO, FABIO · 2013 to 2014
$653k
Effect of chromatin remodelers/modifiers on HIV-1 Tat activated transcriptionR21AI074410 · NIAID · GEORGE WASHINGTON UNIVERSITY · PI KASHANCHI, FATAH · 2009 to 2010
$432k
HIV-1 TAR derived miRNA: Implications for Latency and PathogenesisR21AI078859 · NIAID · GEORGE WASHINGTON UNIVERSITY · PI KASHANCHI, FATAH · 2009 to 2010
$400k
NIAID NIH HHS R01 AI043894NIAID NIH HHS R01 AI120008NIAID NIH HHS R21 AI074410NIAID NIH HHS R21 AI078859NIAID NIH HHS R21 AI106508
6 · The paper itself

Abstract

Various epigenetic marks at the HIV-1 5'LTR suppress proviral expression and promote latency. Cellular antisense transcripts known as long noncoding RNAs (lncRNAs) recruit the polycomb repressor complex 2 (PRC2) to gene promoters, which catalyzes trimethylation of lysine 27 on histone H3 (H3K27me3), thus promoting nucleosome assembly and suppressing gene expression. We found that an HIV-1 antisense transcript expressed from the 3'LTR and encoding the antisense protein ASP promotes proviral latency. Expression of ASP RNA reduced HIV-1 replication in Jurkat cells. Moreover, ASP RNA expression promoted the establishment and maintenance of HIV-1 latency in Jurkat E4 cells. We show that this transcript interacts with and recruits PRC2 to the HIV-1 5'LTR, increasing accumulation of the suppressive epigenetic mark H3K27me3, while reducing RNA Polymerase II and thus proviral transcription. Altogether, our results suggest that the HIV-1 ASP transcript promotes epigenetic silencing of the HIV-1 5'LTR and proviral latency through the PRC2 pathway.

Indexed as

Virus LatencyChromatin Assembly and DisassemblyGene Expression Regulation, ViralGene SilencingHistonesHIV-1HIV InfectionsHIV Long Terminal RepeatHost-Pathogen InteractionsHumansNucleosomesPolycomb Repressive Complex 2RNA, AntisenseRNA, ViralHistonesNucleosomesPolycomb Repressive Complex 2RNA, AntisenseRNA, ViralAntisense transcriptASPEpigenetic marksH3K27me3HIV-1PRC2Viral latency

Identifiers

PMID28340355
PMCPMC5505171
OpenAlexW2600714175

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.