Evidence map›Paper›PMID 9971817›Full record

ArticleJournal of virology1999

Primary human immunodeficiency virus type 2 (HIV-2) isolates, like HIV-1 isolates, frequently use CCR5 but show promiscuity in coreceptor usage.

A Mörner, A Björndal, J Albert, V N Kewalramani, D R Littman, R Inoue, R Thorstensson, E M Fenyö, E Björling

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 180 papers.

0numbers the graph read from it
0cells of the map it votes in
180citing papers in PubMed
3.2field-weighted citation impact, top 7% 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

180 citing papers in PubMed, 325 citations in OpenAlex.

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120 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

9 authors at 4 institutions in 2 countries.

A MörnerMicrobiology and Tumorbiology Center (MTC), Karolinska Institute, Swedish Institute for Infectious Disease Control, Stockholm, Sweden. andreas.morner@mtc.ki.se
A Björndal
J Albert
V N Kewalramani
D R Littman
R Inoue
R Thorstensson
E M Fenyö
E Björling
Karolinska Institutet · SEHoward Hughes Medical Institute · USNew York University · USSwedish Institute · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Coreceptor usage of primary human immunodeficiency virus type 1 (HIV-1) isolates varies according to biological phenotype. The chemokine receptors CCR5 and CXCR4 are the major coreceptors that, together with CD4, govern HIV-1 entry into cells. Since CXCR4 usage determines the biological phenotype for HIV-1 isolates and is more frequent in patients with immunodeficiency, it may serve as a marker for viral virulence. This possibility prompted us to study coreceptor usage by HIV-2, known to be less pathogenic than HIV-1. We tested 11 primary HIV-2 isolates for coreceptor usage in human cell lines: U87 glioma cells, stably expressing CD4 and the chemokine receptor CCR1, CCR2b, CCR3, CCR5, or CXCR4, and GHOST(3) osteosarcoma cells, coexpressing CD4 and CCR5, CXCR4, or the orphan receptor Bonzo or BOB. The indicator cells were infected by cocultivation with virus-producing peripheral blood mononuclear cells and by cell-free virus. Our results show that 10 of 11 HIV-2 isolates were able to efficiently use CCR5. In contrast, only two isolates, both from patients with advanced disease, used CXCR4 efficiently. These two isolates also promptly induced syncytia in MT-2 cells, a pattern described for HIV-1 isolates that use CXCR4. Unlike HIV-1, many of the HIV-2 isolates were promiscuous in their coreceptor usage in that they were able to use, apart from CCR5, one or more of the CCR1, CCR2b, CCR3, and BOB coreceptors. Another difference between HIV-1 and HIV-2 was that the ability to replicate in MT-2 cells appeared to be a general property of HIV-2 isolates. Based on BOB mRNA expression in MT-2 cells and the ability of our panel of HIV-2 isolates to use BOB, we suggest that HIV-2 can use BOB when entering MT-2 cells. The results indicate no obvious link between viral virulence and the ability to use a multitude of coreceptors.

Indexed as

Receptors, G-Protein-CoupledReceptors, VirusHIV-2HumansReceptors, CCR5Receptors, ChemokineReceptors, CXCR4Receptors, CXCR6Receptors, CytokineReceptors, HIVReceptors, PeptideRNA, MessengerTumor Cells, CulturedVirulenceCXCR6 protein, humanGPR15 protein, humanReceptors, CCR5Receptors, ChemokineReceptors, CXCR4Receptors, CXCR6Receptors, CytokineReceptors, G-Protein-CoupledReceptors, HIVReceptors, PeptideReceptors, VirusRNA, Messenger

Identifiers

PMID9971817
PMCPMC104479
OpenAlexW2165866576

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.