Evidence map›Paper›PMID 21159859›Full record

ArticleJournal of virology2011

Cell-associated viral burden provides evidence of ongoing viral replication in aviremic HIV-2-infected patients.

Rui S Soares, Rita Tendeiro, Russell B Foxall, António P Baptista, Rita Cavaleiro, Perpétua Gomes, Ricardo Camacho, Emília Valadas, Manuela Doroana, Margarida Lucas and 3 more

Open access · greenAbstract read
In one paragraph

Article in Journal of virology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
2.1field-weighted citation impact, top 13% 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

31 citing papers in PubMed, 51 citations in OpenAlex.

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  11. Evolution toward beta common chain receptor usage links the matrix proteins of HIV-1 and its ancestors to human erythropoietin.Proceedings of the National Academy of Sciences of the United States of America · 2021
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  16. Conventional Dendritic Cells and SlanFrontiers in immunology · 2020
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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

13 authors at 3 institutions in 1 country.

Rui S SoaresUnidade de Imunologia Clínica, Instituto de Medicina Molecular, Faculdade de Medicina de Lisboa, Lisboa, Portugal.
Rita Tendeiro
Russell B Foxall
António P Baptista
Rita Cavaleiro
Perpétua Gomes
Ricardo Camacho
Emília Valadas
Manuela Doroana
Margarida Lucas
Francisco Antunes
Rui M M Victorino
Ana E Sousa
University of Lisbon · PTHospital de Santa Maria · PTInstituto de Investigação Científica Tropical · PT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Viremia is significantly lower in HIV-2 than in HIV-1 infection, irrespective of disease stage. Nevertheless, the comparable proviral DNA burdens observed for these two infections indicate similar numbers of infected cells. Here we investigated this apparent paradox by assessing cell-associated viral replication. We found that untreated HIV-1-positive (HIV-1(+)) and HIV-2(+) individuals, matched for CD4 T cell depletion, exhibited similar gag mRNA levels, indicating that significant viral transcription is occurring in untreated HIV-2(+) patients, despite the reduced viremia (undetectable to 2.6 × 10(4) RNA copies/ml). However, tat mRNA transcripts were observed at significantly lower levels in HIV-2(+) patients, suggesting that the rate of de novo infection is decreased in these patients. Our data also reveal a direct relationship of gag and tat transcripts with CD4 and CD8 T cell activation, respectively. Antiretroviral therapy (ART)-treated HIV-2(+) patients showed persistent viral replication, irrespective of plasma viremia, possibly contributing to the emergence of drug resistance mutations, persistent hyperimmune activation, and poor CD4 T cell recovery that we observed with these individuals. In conclusion, we provide here evidence of significant ongoing viral replication in HIV-2(+) patients, further emphasizing the dichotomy between amount of plasma virus and cell-associated viral burden and stressing the need for antiretroviral trials and the definition of therapeutic guidelines for HIV-2 infection.

Indexed as

Viral LoadVirus ReplicationAdultAgedAnti-HIV AgentsCD4-Positive T-LymphocytesCD8-Positive T-LymphocytesCohort StudiesFemaleHIV-2HIV InfectionsHumansMaleMiddle AgedViremiaYoung AdultAnti-HIV Agents

Identifiers

PMID21159859
PMCPMC3067805
OpenAlexW2112203633

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.