Evidence map›Paper›PMID 12388705›Full record

ArticleJournal of virology2002

Inhibition of endosomal/lysosomal degradation increases the infectivity of human immunodeficiency virus.

Brenda L Fredericksen, Bangdong L Wei, Jian Yao, Tianci Luo, J Victor Garcia

Open access · greenAbstract read
In one paragraph

Article in Journal of virology, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 122 papers.

0numbers the graph read from it
0cells of the map it votes in
122citing papers in PubMed
2.1field-weighted citation impact, top 12% 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

122 citing papers in PubMed, 209 citations in OpenAlex.

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62 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

5 authors at 2 institutions in 1 country.

Brenda L FredericksenDepartment of Internal Medicine, Division of Infectious Diseases, University of Texas Southwestern Medical Center at Dallas, Dallas, Texas 75390, USA.
Bangdong L Wei
Jian Yao
Tianci Luo
J Victor Garcia
The University of Texas Southwestern Medical Center · USResearch Institute for Genetic and Human Therapy · US

Funding

NEF FUNCTIONR01AI033331 · NIAID · UT SOUTHWESTERN MEDICAL CENTER · PI GARCIA-MARTINEZ, J. VICTOR · 1994 to 2010
$4.4M
NIAID NIH HHS AI-33331NIAID NIH HHS R01 AI033331
6 · The paper itself

Abstract

Productive entry of human immunodeficiency virus type 1 (HIV-1) into a host cell is believed to proceed via fusion of the viral envelope with the host cell's plasma membrane. Interestingly, the majority of HIV-1 particles that bind to the cell surface are taken up by the host cell via endocytosis; however, this mode of internalization generally does not result in infection. Presumably, virus particles remain trapped in the endocytic pathway and are eventually degraded. Here, we demonstrate that treatment of cells with various pharmacological agents known to elevate the pH of endosomes and lysosomes allows HIV-1 to efficiently enter and infect the host cell. Pretreatment of cells with bafilomycin A1 results in up to a 50-fold increase in the infectivity of HIV-1(SF2). Similarly, pretreatment of target cells with amantadine, concanamycin A, concanamycin B, chloroquine, and ammonium chloride resulted in increases in HIV-1 infectivity ranging between 2- and 15-fold. Analysis of receptor and coreceptor expression, HIV-long terminal repeat (LTR) transactivation, and transduction with amphotropic-pseudotyped murine leukemia virus (MLV)-based vectors suggests that the increase in infectivity is not artifactual. The increased infectivity under these conditions appears to be due to the ability of HIV-1 and MLV particles to enter via the endocytic pathway when spared from degradation in the late endosomes and lysosomes. These results could have significant implications for the administration of current and future lysosmotropic agents to patients with HIV disease.

Indexed as

MacrolidesAmantadineAnimalsAnti-Bacterial AgentsCell LineChloroquineEndocytosisEndosomesHeLa CellsHIV-1HIV Long Terminal RepeatHumansHydrogen-Ion ConcentrationLeukemia Virus, MurineLysosomesMiceAmantadineAnti-Bacterial Agentsbafilomycin A1ChloroquineMacrolides

Identifiers

PMID12388705
PMCPMC136743
OpenAlexW2143459780

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.