Evidence map›Paper›PMID 9847311›Full record

ArticleJournal of virology1999

Vpu increases susceptibility of human immunodeficiency virus type 1-infected cells to fas killing.

C R Casella, E L Rapaport, T H Finkel

Open access · bronzeAbstract read
In one paragraph

Article in Journal of virology, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
1.8field-weighted citation impact, top 15% 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

29 citing papers in PubMed, 74 citations in OpenAlex.

  1. Article
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  9. Review
  10. HIV-1 Vpu - an ion channel in search of a job.Biochimica et biophysica acta · 2014
    Review
  11. Article
  12. Article
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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

3 authors at 2 institutions in 1 country.

C R CasellaDivision of Basic Sciences, Department of Pediatrics, National Jewish Medical and Research Center, Denver, Colorado 80206, USA.
E L Rapaport
T H Finkel
National Jewish Health · USUniversity of Colorado Denver · US

Funding

ANERGY &APOPTOSIS--ROLE &MECHANISM IN HIV PATHOGENESISR01AI035513 · NIAID · NATIONAL JEWISH HEALTH · PI FINKEL, TERRI H · 1994 to 2003
$1.8M
DO HIV-1 GENE PRODUCTS PREVENT T CELL APOPTOSISF32AI009740 · NIAID · NATIONAL JEWISH HEALTH · PI CASELLA, CAROLYN R · 1996 to 1997
–
IMMUNE ACTIVATION IN NEONATAL SIV PATHOGENESISR01AI040003 · NIAID · NATIONAL JEWISH HEALTH · PI FINKEL, TERRI H · 1996 to 1999
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NIAID NIH HHS F32 AI009740NIAID NIH HHS NRSA-AI9740NIAID NIH HHS R01 AI035513NIAID NIH HHS R01-AI35513NIAID NIH HHS R01-AI40003
6 · The paper itself

Abstract

The importance of the Fas death pathway in human immunodeficiency virus (HIV) infection has been the subject of many studies. Missing from these studies is direct measurement of infected cell susceptibility to Fas-induced death. To address this question, we investigated whether T cells infected with HIV are more susceptible to Fas-induced death. We found that Fas cross-linking caused a decrease in the number of HIV-infected Jurkat T cells and CD4(+) peripheral blood leukocytes (PBLs). We confirmed this finding by demonstrating that there were more apoptotic infected than uninfected cells after Fas ligation. The increase in sensitivity of HIV-infected cells to Fas killing mapped to vpu, while nef, vif, vpr, and second exon of tat did not appear to contribute. Furthermore, expression of Vpu in Jurkat T cells rendered them more susceptible to Fas-induced death. These results show that HIV-infected cells are more sensitive to Fas-induced death and that the Vpu protein of HIV contributes to this sensitivity. The increased sensitivity of HIV-infected cells to Fas-induced death might help explain why these cells have such a short in vivo half-life.

Indexed as

ApoptosisCD4-Positive T-LymphocytesCell Linefas ReceptorHIV-1Human Immunodeficiency Virus ProteinsHumansViral Regulatory and Accessory ProteinsViroporin Proteinsfas ReceptorHuman Immunodeficiency Virus ProteinsViral Regulatory and Accessory ProteinsViroporin Proteinsvpu protein, Human immunodeficiency virus 1

Identifiers

PMID9847311
PMCPMC103812
OpenAlexW2145096980

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.