Evidence map›Paper›PMID 18373845›Full record

ArticleRetrovirology2008

Extracellular ATP reduces HIV-1 transfer from immature dendritic cells to CD4+ T lymphocytes.

Corinne Barat, Caroline Gilbert, Michael Imbeault, Michel J Tremblay

Open access · goldAbstract read
In one paragraph

Article in Retrovirology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
0.8field-weighted citation impact, top 32% 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

19 citing papers in PubMed, 28 citations in OpenAlex.

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  13. Adenosine and its receptors as therapeutic targets: An overview.Saudi pharmaceutical journal : SPJ : the official publication of the Saudi Pharmaceutical Society · 2013
    Article
  14. Review
  15. cAMP during HIV infection: friend or foe?AIDS research and human retroviruses · 2012
    Review
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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.

Corinne BaratLaboratoire d'Immuno-Rétrovirologie Humaine, Centre de Recherche en Infectiologie, RC709, 2705 Boul, Laurier, Québec (QC), G1V 4G2, Canada. corinne.barat@crchul.ulaval.ca
Caroline Gilbert
Michael Imbeault
Michel J Tremblay
Wilfrid Laurier University · CAEndocrinology Research Center · RU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDendritic cells (DCs) are considered as key mediators of the early events in human immunodeficiency virus type 1 (HIV-1) infection at mucosal sites. Previous studies have shown that surface-bound virions and/or internalized viruses found in endocytic vacuoles of DCs are efficiently transferred to CD4+ T cells. Extracellular adenosine triphosphate (ATP) either secreted or released from necrotic cells induces a distorted maturation of DCs, transiently increases their endocytic capacity and affects their migratory capacity. Knowing that high extracellular ATP concentrations are present in situations of tissue injury and inflammation, we investigated the effect of ATP on HIV-1 transmission from DCs to CD4+ T lymphocytes.

resultsIn this study, we show that extracellular ATP reduces HIV-1 transfer from immature monocyte-derived DCs (iDCs) to autologous CD4+ T cells. This observed decrease in viral replication was related to a lower proportion of infected CD4+ T cells following transfer, and was seen with both X4- and R5-tropic isolates of HIV-1. Extracellular ATP had no effect on direct CD4+ T cell infection as well as on productive HIV-1 infection of iDCs. These observations indicate that extracellular ATP affects HIV-1 infection of CD4+ T cells in trans with no effect on de novo virus production by iDCs. Additional experiments suggest that extracellular ATP might modulate the trafficking pathway of internalized virions within iDCs leading to an increased lysosomal degradation, which could be partly responsible for the decreased HIV-1 transmission.

conclusionThese results suggest that extracellular ATP can act as a factor controlling HIV-1 propagation.

Indexed as

Adenosine TriphosphateBiological TransportCD4-Positive T-LymphocytesCells, CulturedCoculture TechniquesDendritic CellsHIV-1HIV InfectionsHumansLeukocytes, MononuclearMovementVirus ReplicationAdenosine Triphosphate

Identifiers

PMID18373845
PMCPMC2346478
OpenAlexW2020122301

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.