Evidence map›Paper›PMID 21346189›Full record

ArticleMolecular biology of the cell2011

HIV-1 requires Arf6-mediated membrane dynamics to efficiently enter and infect T lymphocytes.

Laura García-Expósito, Jonathan Barroso-González, Isabel Puigdomènech, José-David Machado, Julià Blanco, Agustín Valenzuela-Fernández

Open access · greenAbstract read
In one paragraph

Article in Molecular biology of the cell, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
1.6field-weighted citation impact, top 18% 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

32 citing papers in PubMed, 44 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Review
  5. TDP-43 Controls HIV-1 Viral Production and Virus Infectiveness.International journal of molecular sciences · 2023
    Article
  6. Review
  7. Article
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  17. Article
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  19. Article
  20. Membrane dynamics associated with viral infection.Reviews in medical virology · 2016
    Review
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

6 authors at 2 institutions in 1 country.

Laura García-ExpósitoUniversidad de La Laguna, Tenerife, Spain.
Jonathan Barroso-González
Isabel Puigdomènech
José-David Machado
Julià Blanco
Agustín Valenzuela-Fernández
Universidad de La Laguna · ESUniversitat Autònoma de Barcelona · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

As the initial barrier to viral entry, the plasma membrane along with the membrane trafficking machinery and cytoskeleton are of fundamental importance in the viral cycle. However, little is known about the contribution of plasma membrane dynamics during early human immunodeficiency virus type 1 (HIV-1) infection. Considering that ADP ribosylation factor 6 (Arf6) regulates cellular invasion via several microorganisms by coordinating membrane trafficking, our aim was to study the function of Arf6-mediated membrane dynamics on HIV-1 entry and infection of T lymphocytes. We observed that an alteration of the Arf6-guanosine 5'-diphosphate/guanosine 5'-triphosphate (GTP/GDP) cycle, by GDP-bound or GTP-bound inactive mutants or by specific Arf6 silencing, inhibited HIV-1 envelope-induced membrane fusion, entry, and infection of T lymphocytes and permissive cells, regardless of viral tropism. Furthermore, cell-to-cell HIV-1 transmission of primary human CD4(+) T lymphocytes was inhibited by Arf6 knockdown. Total internal reflection fluorescence microscopy showed that Arf6 mutants provoked the accumulation of phosphatidylinositol-(4,5)-biphosphate-associated structures on the plasma membrane of permissive cells, without affecting CD4-viral attachment but impeding CD4-dependent HIV-1 entry. Arf6 silencing or its mutants did not affect fusion, entry, and infection of vesicular stomatitis virus G-pseudotyped viruses or ligand-induced CXCR4 or CCR5 endocytosis, both clathrin-dependent processes. Therefore we propose that efficient early HIV-1 infection of CD4(+) T lymphocytes requires Arf6-coordinated plasma membrane dynamics that promote viral fusion and entry.

Indexed as

ADP-Ribosylation FactorsADP-Ribosylation Factor 6CD4-Positive T-LymphocytesEndocytosisFemaleGene SilencingGuanosine DiphosphateHEK293 CellsHeLa CellsHIV-1HIV InfectionsHumansMembrane FusionMicroscopy, FluorescencePhosphatidylinositol 4,5-DiphosphateReceptors, CCR5ADP-Ribosylation Factor 6ADP-Ribosylation FactorsARF6 protein, humanCXCR4 protein, humanGuanosine DiphosphatePhosphatidylinositol 4,5-DiphosphateReceptors, CCR5Receptors, CXCR4RNA, Small Interfering

Identifiers

PMID21346189
PMCPMC3078069
OpenAlexW2159266772

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.