Evidence map›Paper›PMID 23726848›Full record

ArticleVirology2013

Viral protein R upregulates expression of ULBP2 on uninfected bystander cells during HIV-1 infection of primary CD4+ T lymphocytes.

Jonathan Richard, Tram N Q Pham, Yukihito Ishizaka, Eric A Cohen

Abstract read
In one paragraph

Article in Virology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.5field-weighted citation impact, top 19% 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

9 citing papers in PubMed, 16 citations in OpenAlex.

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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

4 authors at 2 institutions in 2 countries.

Jonathan RichardInstitut de Recherches Cliniques de Montréal (IRCM), Montréal, Québec, Canada.
Tram N Q Pham
Yukihito Ishizaka
Eric A Cohen
Montreal Clinical Research Institute · CANational Center for Global Health and Medicine · JP

Funding

CIHR 12381-4CIHR MOP 12381
6 · The paper itself

Abstract

HIV-1 Vpr triggers NK cell-mediated lysis of infected cells by upregulating ULBP2, a ligand of the NKG2D receptor, through activation of the ATR-mediated DNA damage response. Herein, we demonstrate that Vpr augments ULBP2 expression on both infected and uninfected bystander cells during HIV-1 infection of primary CD4+ T lymphocytes. Indeed, the frequency of uninfected bystander cells expressing high levels of ULBP2 was elevated in a Vpr-dependent manner. Nevertheless, the same does not hold true for a Vpr mutant that is not packaged into virions, suggesting the involvement of virion-associated Vpr in this process. Additionally, we show that soluble Vpr has the ability to induce a DNA damage response and to augment cell-surface ULBP2 upon transducing target cells, including T cells, conditions known to promote NK cell-mediated killing. Overall, these findings suggest that Vpr could contribute to CD4+ T cell loss by rendering uninfected bystander cells susceptible to NK cell-mediated killing.

Indexed as

Up-RegulationCD4-Positive T-LymphocytesCell LineDNA DamageGPI-Linked ProteinsHEK293 CellsHeLa CellsHIV-1HumansIntercellular Signaling Peptides and ProteinsKiller Cells, NaturalVirionvpr Gene Products, Human Immunodeficiency VirusGPI-Linked ProteinsIntercellular Signaling Peptides and ProteinsULBP2 protein, humanvpr Gene Products, Human Immunodeficiency Virusvpr protein, Human immunodeficiency virus 1CD4+ T cell depletionDNA damage responseHIV-1 VprNatural killer cellNKG2D ligandULBP2

Identifiers

PMID23726848
PMCPMC3955187
OpenAlexW2064535943

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.