Evidence map›Paper›PMID 16103188›Full record

ArticleJournal of virology2005

Human immunodeficiency virus type 1 Vpr-dependent cell cycle arrest through a mitogen-activated protein kinase signal transduction pathway.

Naoto Yoshizuka, Yuko Yoshizuka-Chadani, Vyjayanthi Krishnan, Steven L Zeichner

Open access · greenAbstract readComparative Study
In one paragraph

Article in Journal of virology, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
1.5field-weighted citation impact, top 19% 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

23 citing papers in PubMed, 35 citations in OpenAlex.

  1. Review
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  5. Intracellular dynamics of HIV infection.Journal of virology · 2014
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  16. Dynamical pathway analysis.BMC systems biology · 2008
    Article
  17. Review
  18. Review
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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 at 2 institutions in 1 country.

Naoto YoshizukaHIV and AIDS Malignancy Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20817, USA.
Yuko Yoshizuka-Chadani
Vyjayanthi Krishnan
Steven L Zeichner
National Cancer Institute · USNational Institutes of Health · US

Funding

HIV MOLECULAR VIROLOGY AND PATHOGENESISZ01SC010087 · SC · CLINICAL SCIENCES · PI ZEICHNER, STEVEN L · 1997 to 2005
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6 · The paper itself

Abstract

The human immunodeficiency virus type 1 (HIV-1) Vpr protein has important functions in advancing HIV pathogenesis via several effects on the host cell. Vpr mediates nuclear import of the preintegration complex, induces host cell apoptosis, and inhibits cell cycle progression at G(2), which increases HIV gene expression. Some of Vpr's activities have been well described, but some functions, such as cell cycle arrest, are not yet completely characterized, although components of the ATR DNA damage repair pathway and the Cdc25C and Cdc2 cell cycle control mechanisms clearly play important roles. We investigated the mechanisms underlying Vpr-mediated cell cycle arrest by examining global cellular gene expression profiles in cell lines that inducibly express wild-type and mutant Vpr proteins. We found that Vpr expression is associated with the down-regulation of genes in the MEK2-ERK pathway and with decreased phosphorylation of the MEK2 effector protein ERK. Exogenous provision of excess MEK2 reverses the cell cycle arrest associated with Vpr, confirming the involvement of the MEK2-ERK pathway in Vpr-mediated cell cycle arrest. Vpr therefore appears to arrest the cell cycle at G(2)/M through two different mechanisms, the ATR mechanism and a newly described MEK2 mechanism. This redundancy suggests that Vpr-mediated cell cycle arrest is important for HIV replication and pathogenesis. Our findings additionally reinforce the idea that HIV can optimize the host cell environment for viral replication.

Indexed as

Cell CycleMAP Kinase Signaling SystemCell Cycle ProteinsCell DivisionCell LineG2 PhaseGene Expression ProfilingGene Products, vprHIV-1Humansvpr Gene Products, Human Immunodeficiency VirusCell Cycle ProteinsGene Products, vprvpr Gene Products, Human Immunodeficiency Virus

Identifiers

PMID16103188
PMCPMC1193619
OpenAlexW2124230984

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.