Evidence map›Paper›PMID 22508308›Full record

ArticleAntimicrobial agents and chemotherapy2012

Activity of human immunodeficiency virus type 1 protease inhibitors against the initial autocleavage in Gag-Pol polyprotein processing.

David A Davis, Erin E Soule, Katharine S Davidoff, Sarah I Daniels, Nicole E Naiman, Robert Yarchoan

Open access · bronzeAbstract read
In one paragraph

Article in Antimicrobial agents and chemotherapy, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
1.3field-weighted citation impact, top 21% 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

28 citing papers in PubMed, 48 citations in OpenAlex.

  1. Review
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  9. Viral proteases as therapeutic targets.Molecular aspects of medicine · 2022
    Review
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  12. Article
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  14. Epitranscriptomic addition of mGenes & development · 2021
    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

6 authors at 2 institutions in 1 country.

David A DavisHIV and AIDS Malignancy Branch, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, Maryland, USA. dadavis@helix.nih.gov
Erin E Soule
Katharine S Davidoff
Sarah I Daniels
Nicole E Naiman
Robert Yarchoan
Center for Cancer Research · USNational Cancer Institute · US

Funding

Development of Preventive Strategies and Therapy for HIV InfectionZIASC006737 · NCI · DIVISION OF CLINICAL SCIENCES - NCI · PI YARCHOAN, ROBERT · 2009 to 2025
$3.0M
6 · The paper itself

Abstract

Inhibitors of HIV protease have proven to be important drugs in combination anti-HIV therapy. These inhibitors were designed to target mature protease and prevent viral particle maturation by blocking Gag and Gag-Pol processing by mature protease. Currently there are few data assessing the ability of these protease inhibitors to block the initial step in autoproteolytic processing of Gag-Pol. This unique step involves the dimerization of two Gag-Pol polyproteins and autocleavage of the Gag-Pol polyprotein by the embedded dimeric protease. We developed a plasmid encoding a modified form of Gag-Pol that can undergo autoprocessing only at the initial cleavage site between p2 and nucleocapsid. Using an in vitro transcription/translation system, we assessed the ability of six different approved protease inhibitors (darunavir, indinavir, nelfinavir, ritonavir, saquinavir, and tipranavir) to block this initial autocleavage step. Of these inhibitors, darunavir and saquinavir were the most effective. Darunavir and saquinavir were also the most effective at blocking the initial autoprocessing of full-length Gag-Pol in HIV-1-infected T cells. Thus, we have identified at least two HIV-1 protease inhibitors that have activity against the primary autocatalytic step of the embedded HIV-1 protease in Gag-Pol at concentrations that may be attained in HIV-1-infected patients. Due to unique aspects of the initial processing step, it may be possible to develop inhibitors with greater potency against this step, thus halting viral maturation at the earliest stages. The transcription/translation assay could be used to develop more potent inhibitors of this essential first step in viral maturation.

Indexed as

Cell LineDarunavirGene Products, gagGene Products, polHIV-1HIV Protease InhibitorsHumansSaquinavirSulfonamidesDarunavirGene Products, gagGene Products, polHIV Protease InhibitorsSaquinavirSulfonamides

Identifiers

PMID22508308
PMCPMC3393404
OpenAlexW2169749376

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.