Evidence map›Paper›PMID 19109381›Full record

ArticleJournal of virology2009

Reduced viral replication capacity of human immunodeficiency virus type 1 subtype C caused by cytotoxic-T-lymphocyte escape mutations in HLA-B57 epitopes of capsid protein.

Christian L Boutwell, Christopher F Rowley, M Essex

Open access · greenAbstract read
In one paragraph

Article in Journal of virology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers.

0numbers the graph read from it
0cells of the map it votes in
66citing papers in PubMed
2.3field-weighted citation impact, top 11% 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

66 citing papers in PubMed, 82 citations in OpenAlex.

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  8. HIV-Resistant and HIV-Specific CAR-Modified CD4Molecular therapy : the journal of the American Society of Gene Therapy · 2020
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6 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

3 authors at 1 institution in 1 country.

Christian L BoutwellDepartment of Immunology and Infectious Diseases, Harvard School of Public Health AIDS Initiative, Harvard School of Public Health, 651 Huntington Avenue, Boston, Massachusetts 02115, USA.
Christopher F Rowley
M Essex
Beth Israel Deaconess Medical Center · US

Funding

IDENTIFICATION OF HLA RESTRICTED CTL EPITOPES OF HIV-1 CR01AI047067 · NIAID · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI ESSEX, MYRON E · 2000 to 2004
$2.5M
NIAID NIH HHS R01 AI047067NIAID NIH HHS R01-AI047067
6 · The paper itself

Abstract

Cytotoxic-T-lymphocyte (CTL) escape mutations in human immunodeficiency viruses encode amino acid substitutions in positions that disrupt CTL targeting, thereby increasing virus survival and conferring a relative fitness benefit. However, it is now clear that CTL escape mutations can also confer a fitness cost, and there is increasing evidence to suggest that in some cases, e.g., escape from HLA-B*57/B*5801-restricted responses, the costs to the escape virus may affect the clinical course of infection. To quantify the magnitude of the costs of HLA-B*57/B*5801 escape, a highly sensitive dual-infection assay that uses synonymous nucleotide sequence tags to quantify viral relative replication capacity (RRC) was developed. We then asked whether such CTL escape mutations had an impact equivalent to that seen for a benchmark mutation, the M184V antiretroviral drug resistance mutation of reverse transcriptase (RRC(V184) = 0.86). To answer the question, the RRCs were quantified for escape mutations in three immunodominant HLA-B*57/B*5801 epitopes in capsid: A146P in IW9 (RRC(P146) = 0.91), A163G in KF11 (RRC(G163) = 0.89), and T242N in TW10 (RRC(N242) = 0.86). Individually, the impact of the escape mutations on RRC was comparable to that of M184V, while coexpression of the mutations resulted in substantial further reductions, with the maximum impact observed for the triple mutant (RRC(P146-G163-N242) = 0.62). By comparison to M184V, the magnitude of the reductions in RRC caused by the escape mutations, particularly when coexpressed, suggests that the costs of escape are sufficient to affect in vivo viral dynamics and may thus play a role in the protective effect associated with HLA-B*57/B*5801.

Indexed as

Mutation, MissenseVirus ReplicationAmino Acid SubstitutionCapsid ProteinsCell LineEpitopesHIV-1HLA-B AntigensHumansT-Lymphocytes, CytotoxicCapsid ProteinsEpitopesHLA-B57 antigenHLA-B Antigens

Identifiers

PMID19109381
PMCPMC2648284
OpenAlexW2126862836

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.