Evidence map›Paper›PMID 9188632›Full record

ArticleJournal of virology1997

Human immunodeficiency virus type 1 Vpr induces apoptosis following cell cycle arrest.

S A Stewart, B Poon, J B Jowett, I S Chen

Abstract read
In one paragraph

Article in Journal of virology, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 145 papers.

0numbers the graph read from it
0cells of the map it votes in
145citing papers in PubMed
–field-weighted citation impact
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

145 citing papers in PubMed.

  1. Manipulation of the cell cycle by HIV-1.Biochemical Society transactions · 2026
    Review
  2. Article
  3. Article
  4. Article
  5. The HIV-1Viruses · 2024
    Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Review
  12. Bioactive Compounds from Medicinal Plants in Myanmar.Progress in the chemistry of organic natural products · 2021
    Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. Proliferation of latently infected CD4The Journal of experimental medicine · 2017
    Article

85 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

4 authors.

S A StewartDepartment of Microbiology and Immunology, UCLA School of Medicine and Jonsson Comprehensive Cancer Center, Los Angeles, California 90095, USA.
B Poon
J B Jowett
I S Chen

Funding

Virology CoreP30AI028697 · NIAID · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI ANTON, PETER A · 1991 to 2018
$39.9M
RESPIRATORY VIRUS ION CHANNELSR01AI031882 · NIAID · NORTHWESTERN UNIVERSITY · PI PINTO, LAWRENCE H · 1993 to 2007
$1.7M
NIAID NIH HHS AI28697NIAID NIH HHS AI31882NIGMS NIH HHS GM07185
6 · The paper itself

Abstract

The human immunodeficiency virus type 1 (HIV-1) vpr gene encodes a protein which induces arrest of cells in the G2 phase of the cell cycle. Here, we demonstrate that following the arrest of cells in G2, Vpr induces apoptosis in human fibroblasts, T cells, and primary peripheral blood lymphocytes. Analysis of various mutations in the vpr gene revealed that the extent of Vpr-induced G2 arrest correlated with the levels of apoptosis. However, the alleviation of Vpr-induced G2 arrest by treatment with the drug pentoxifylline did not abrogate apoptosis. Together these studies indicate that induction of G2 arrest, but not necessarily continued arrest in G2, was required for Vpr-induced apoptosis to occur. Finally, Vpr-induced G2 arrest has previously been correlated with inactivation of the Cdc2 kinase. Some models of apoptosis have demonstrated a requirement for active Cdc2 kinase for apoptosis to occur. Here we show that accumulation of the hypophosphorylated or active form of the Cdc2 kinase is not required for Vpr-induced apoptosis. These studies indicate that Vpr is capable of inducing apoptosis, and we propose that both the initial arrest of cells and subsequent apoptosis may contribute to CD4 cell depletion in HIV-1 disease.

Indexed as

ApoptosisAnimalsCDC2 Protein KinaseCell CycleCells, CulturedCOS CellsG2 PhaseGene Products, vprHeLa CellsHIV-1HumansLymphocytesPhosphorylationPoint MutationTumor Cells, Culturedvpr Gene Products, Human Immunodeficiency VirusCDC2 Protein KinaseGene Products, vprvpr Gene Products, Human Immunodeficiency Virus

Identifiers

PMID9188632
PMCPMC191800

What OpenQuestion holds

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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.