Evidence map›Paper›PMID 20585556›Full record

ArticlePLoS pathogens2010

Role of Abl kinase and the Wave2 signaling complex in HIV-1 entry at a post-hemifusion step.

Brooke Harmon, Nancy Campbell, Lee Ratner

Open access · goldAbstract read
In one paragraph

Article in PLoS pathogens, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 67 papers.

0numbers the graph read from it
0cells of the map it votes in
67citing papers in PubMed
6.4field-weighted citation impact, top 3% 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

67 citing papers in PubMed, 110 citations in OpenAlex.

  1. Article
  2. Role of c-ABL in DENV-2 Infection and Actin Remodeling in Vero Cells.International journal of molecular sciences · 2025
    Article
  3. Article
  4. Review
  5. Article
  6. Article
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  8. Article
  9. Article
  10. Kinase Inhibitors as Underexplored Antiviral Agents.Journal of medicinal chemistry · 2022
    Review
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  12. Article
  13. Review
  14. Review
  15. Review
  16. Review
  17. Article
  18. Article
  19. Article
  20. Review

7 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

3 authors at 1 institution in 1 country.

Brooke HarmonDivision of Molecular Oncology, Washington University School of Medicine, St Louis, Missouri, United States of America.
Nancy Campbell
Lee Ratner
Washington University in St. Louis · US

Funding

Infectious Diseases/Basic Microbial Pathogenic MechanismsT32AI007172 · NIAID · WASHINGTON UNIVERSITY · PI Daniel E. Goldberg, JENNIFER A PHILIPS · 1985 to 2026
$13.0M
PATHOGENESIS OF HUMAN IMMUNODEFICIENCY VIRUS INFECTIONR01AI024745 · NIAID · WASHINGTON UNIVERSITY · PI RATNER, LEE · 1987 to 2007
$1.5M
NIAID NIH HHS AI24745NIAID NIH HHS R01 AI024745NIAID NIH HHS T32 AI007172
6 · The paper itself

Abstract

Entry of human immunodeficiency virus type 1 (HIV-1) commences with binding of the envelope glycoprotein (Env) to the receptor CD4, and one of two coreceptors, CXCR4 or CCR5. Env-mediated signaling through coreceptor results in Galphaq-mediated Rac activation and actin cytoskeleton rearrangements necessary for fusion. Guanine nucleotide exchange factors (GEFs) activate Rac and regulate its downstream protein effectors. In this study we show that Env-induced Rac activation is mediated by the Rac GEF Tiam-1, which associates with the adaptor protein IRSp53 to link Rac to the Wave2 complex. Rac and the tyrosine kinase Abl then activate the Wave2 complex and promote Arp2/3-dependent actin polymerization. Env-mediated cell-cell fusion, virus-cell fusion and HIV-1 infection are dependent on Tiam-1, Abl, IRSp53, Wave2, and Arp3 as shown by attenuation of fusion and infection in cells expressing siRNA targeted to these signaling components. HIV-1 Env-dependent cell-cell fusion, virus-cell fusion and infection were also inhibited by Abl kinase inhibitors, imatinib, nilotinib, and dasatinib. Treatment of cells with Abl kinase inhibitors did not affect cell viability or surface expression of CD4 and CCR5. Similar results with inhibitors and siRNAs were obtained when Env-dependent cell-cell fusion, virus-cell fusion or infection was measured, and when cell lines or primary cells were the target. Using membrane curving agents and fluorescence microscopy, we showed that inhibition of Abl kinase activity arrests fusion at the hemifusion (lipid mixing) step, suggesting a role for Abl-mediated actin remodeling in pore formation and expansion. These results suggest a potential utility of Abl kinase inhibitors to treat HIV-1 infected patients.

Indexed as

Cell FusionVirus InternalizationActinsAstrocytomaBlotting, WesternCD4 AntigensCells, CulturedCytoskeletonFlow CytometryGenes, envHIV-1HIV InfectionsHumansProtein Kinase InhibitorsProto-Oncogene Proteins c-ablReceptors, CCR5ActinsCD4 AntigensProtein Kinase InhibitorsProto-Oncogene Proteins c-ablReceptors, CCR5Receptors, CXCR4WASF2 protein, humanWiskott-Aldrich Syndrome Protein Family

Identifiers

PMID20585556
PMCPMC2887473
OpenAlexW1969877587

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.