Evidence map›Paper›PMID 16492778›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2006

The Vif and Vpr accessory proteins independently cause HIV-1-induced T cell cytopathicity and cell cycle arrest.

Keiko Sakai, Joseph Dimas, Michael J Lenardo

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 89 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
89citing papers in PubMed, 1 pooled it
4.3field-weighted citation impact, top 4% 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

89 citing papers in PubMed, 1 synthesis or guideline pooled it, 145 citations in OpenAlex.

  1. HIV Genome-Wide Protein Associations: a Review of 30 Years of Research.Microbiology and molecular biology reviews : MMBR · 2016
    Pooled it
  2. Manipulation of the cell cycle by HIV-1.Biochemical Society transactions · 2026
    Review
  3. Article
  4. Article
  5. HIV-1 Vif and Vpr cooperatively modulate the cell cycle to maximize per-cell virion production.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  6. Article
  7. APOBEC3 and the mutational signature of lentiviral vectors.Molecular therapy : the journal of the American Society of Gene Therapy · 2025
    Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Structural insights into PPP2R5A degradation by HIV-1 Vif.Nature structural & molecular biology · 2024
    Article
  16. Review
  17. Review
  18. Article
  19. Article
  20. Article

29 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 2 institutions in 1 country.

Keiko SakaiLaboratory of Immunology, National Institutes of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892-1892, USA.
Joseph Dimas
Michael J Lenardo
National Institutes of Health · USNational Institute of Allergy and Infectious Diseases · US

Funding

Molecular Pathways of Programmed Cell Death And Viral CytopathicityZIAAI000718 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI SU, HELEN · 2009 to 2024
$4.5M
Molecular Pathways--Programmed Death/Viral CytopathicityZ01AI000718 · NIAID · NIAID EXTRAMURAL ACTIVITIES · PI LENARDO, MICHAEL · 1995 to 2008
$763k
Intramural NIH HHS
6 · The paper itself

Abstract

HIV type I (HIV-1) can cause G(2) cell cycle arrest and death of CD4(+) T lymphocytes in vitro and inexorable depletion of these cells in vivo. However, the molecular mechanism of viral cytopathicity has not been satisfactorily elucidated. Previously, we showed that HIV-1 kills T cells by a necrotic form of cell death that requires high level expression of an integrated provirus but not the env or nef genes. To determine which viral protein(s) are required for cell death, we systematically mutated, alone and in combination, the ORFs of the NL4-3 strain of HIV-1. We found that the elimination of the viral functions encoded by gag-pol and vpu, tat, and rev did not mitigate cytopathicity. However, elimination of the vif and vpr accessory genes together, but not individually, renders the virus incapable of causing cell death and G(2) cell cycle blockade. We thus identify vif and vpr as necessary for T cell cytopathic effects induced by HIV-1. These findings may provide an important insight into the molecular mechanism of viral pathogenesis in AIDS.

Indexed as

Cell CycleCell LineGene Products, vifGene Products, vprHIV-1HumansMutationT-Lymphocytesvif Gene Products, Human Immunodeficiency Virusvpr Gene Products, Human Immunodeficiency VirusGene Products, vifGene Products, vprvif Gene Products, Human Immunodeficiency Virusvpr Gene Products, Human Immunodeficiency Virus

Identifiers

PMID16492778
PMCPMC1413893
OpenAlexW2023255376

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.