Evidence map›Paper›PMID 25056899›Full record

ArticleJournal of virology2014

Exosomes from human immunodeficiency virus type 1 (HIV-1)-infected cells license quiescent CD4+ T lymphocytes to replicate HIV-1 through a Nef- and ADAM17-dependent mechanism.

Claudia Arenaccio, Chiara Chiozzini, Sandra Columba-Cabezas, Francesco Manfredi, Elisabetta Affabris, Andreas Baur, Maurizio Federico

Open access · bronzeAbstract read
In one paragraph

Article in Journal of virology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 130 papers.

0numbers the graph read from it
0cells of the map it votes in
130citing papers in PubMed
6.8field-weighted citation impact, top 2% 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

130 citing papers in PubMed, 170 citations in OpenAlex.

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  19. The Role of Extracellular Vesicles in Pandemic Viral Infections.Journal of microbiology (Seoul, Korea) · 2024
    Review
  20. Extracellular vesicles as tools and targets in therapy for diseases.Signal transduction and targeted therapy · 2024
    Review

70 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 3 institutions in 2 countries.

Claudia ArenaccioNational AIDS Center, Istituto Superiore di Sanità, Rome, Italy Department of Science, University Roma Tre, Rome, Italy.
Chiara ChiozziniNational AIDS Center, Istituto Superiore di Sanità, Rome, Italy.
Sandra Columba-CabezasDepartment of Cell Biology and Neurosciences, Istituto Superiore di Sanità, Rome, Italy.
Francesco ManfrediNational AIDS Center, Istituto Superiore di Sanità, Rome, Italy.
Elisabetta AffabrisDepartment of Science, University Roma Tre, Rome, Italy.
Andreas BaurDepartment of Dermatology, University Hospital Erlangen, Erlangen, Germany.
Maurizio FedericoNational AIDS Center, Istituto Superiore di Sanità, Rome, Italy maurizio.federico@iss.it.
Istituto Superiore di Sanità · ITRoma Tre University · ITUniversitätsklinikum Erlangen · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

unlabelledResting CD4+ T lymphocytes resist human immunodeficiency virus (HIV) infection. Here, we provide evidence that exosomes from HIV-1-infected cells render resting human primary CD4+ T lymphocytes permissive to HIV-1 replication. These results were obtained with transwell cocultures of HIV-1-infected cells with quiescent CD4+ T lymphocytes in the presence of inhibitors of exosome release and were confirmed using exosomes purified from supernatants of HIV-1-infected primary CD4+ T lymphocytes. We found that the expression of HIV-1 Nef in exosome-producing cells is both necessary and sufficient for cell activation as well as HIV-1 replication in target CD4+ T lymphocytes. We also identified a Nef domain important for the effects we observed, i.e., the 62EEEE65 acidic cluster domain. In addition, we observed that ADAM17, i.e., a disintegrin and metalloprotease converting pro-tumor necrosis factor alpha (TNF-α) in its mature form, associates with exosomes from HIV-1-infected cells, and plays a key role in the HIV-1 replication in quiescent CD4+ T lymphocytes. Treatment with an inhibitor of ADAM17 abolished both activation and HIV-1 replication in resting CD4+ T lymphocytes. TNF-α is the downstream effector of ADAM17 since the treatment of resting lymphocytes with anti-TNF-α antibodies blocked the HIV-1 replication. The data presented here are consistent with a model where Nef induces intercellular communication through exosomes to activate bystander quiescent CD4+ T lymphocytes, thus stimulating viral spread. IMPORTANCE: Overall, our findings support the idea that HIV evolved to usurp the exosome-based intercellular communication network to favor its spread in infected hosts.

Indexed as

ADAM17 ProteinADAM ProteinsAntibodiesCD4-Positive T-LymphocytesCell CommunicationCells, CulturedDiffusion Chambers, CultureEnzyme InhibitorsExosomesGene Expression RegulationHEK293 CellsHIV-1HumansLymphocyte Activationnef Gene Products, Human Immunodeficiency VirusProtein Structure, TertiaryADAM17 ProteinADAM17 protein, humanADAM ProteinsAntibodiesEnzyme Inhibitorsnef Gene Products, Human Immunodeficiency Virusnef protein, Human immunodeficiency virus 1Tumor Necrosis Factor-alpha

Identifiers

PMID25056899
PMCPMC4178784
OpenAlexW2018270702

What OpenQuestion holds

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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.