Evidence map›Paper›PMID 30395647›Full record

ArticlePLoS pathogens2018

HEXIM1-Tat chimera inhibits HIV-1 replication.

Marie Leoz, Petra Kukanja, Zeping Luo, Fang Huang, Daniele C Cary, B Matija Peterlin, Koh Fujinaga

Open access · goldAbstract read
In one paragraph

Article in PLoS pathogens, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.2field-weighted citation impact, top 23% 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

11 citing papers in PubMed, 18 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Review
  5. Review
  6. Proteasomal Inhibition Potentiates Latent HIV Reactivation.AIDS research and human retroviruses · 2020
    Article
  7. Review
  8. Article
  9. P-TEFb as A Promising Therapeutic Target.Molecules (Basel, Switzerland) · 2020
    Review
  10. Targeting HIV-1 proviral transcription.Current opinion in virology · 2019
    Review
  11. Review
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

7 authors at 1 institution in 1 country.

Marie LeozDepartment of Medicine, Microbiology and Immunology, UCSF, San Francisco, California, United States of America.
Petra KukanjaDepartment of Medicine, Microbiology and Immunology, UCSF, San Francisco, California, United States of America.ORCID 0000-0003-1228-5923
Zeping LuoDepartment of Medicine, Microbiology and Immunology, UCSF, San Francisco, California, United States of America.
Fang HuangDepartment of Medicine, Microbiology and Immunology, UCSF, San Francisco, California, United States of America.
Daniele C CaryDepartment of Medicine, Microbiology and Immunology, UCSF, San Francisco, California, United States of America.ORCID 0000-0003-4750-2035
B Matija PeterlinDepartment of Medicine, Microbiology and Immunology, UCSF, San Francisco, California, United States of America.ORCID 0000-0003-3692-219X
Koh FujinagaDepartment of Medicine, Microbiology and Immunology, UCSF, San Francisco, California, United States of America.ORCID 0000-0003-4242-9078
University of California, San Francisco · US

Funding

X-ray Screening and Rapid Structure DeterminationP50GM082250 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI FRANKEL, ALAN D · 2007 to 2018
$48.8M
TAT TransactivationR01AI049104 · NIAID · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI PETERLIN, BORIS MATIJA · 2001 to 2015
$5.3M
TAT TransactivationR01AI125104 · NIAID · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI PETERLIN, BORIS MATIJA · 2016 to 2020
$2.0M
HIV transcriptome analysis during viral latencyR21AI127274 · NIAID · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI FUJINAGA, KOH · 2016 to 2017
$436k
Role of Caspase-8 in Lymphocyte ProliferationR21AI071274 · NIAID · UNIVERSITY OF PENNSYLVANIA · PI YANG, XIAOLU · 2007 to 2008
$429k
NIAID NIH HHS R01 AI049104NIAID NIH HHS R01 AI125104NIAID NIH HHS R21 AI071274NIAID NIH HHS R21 AI127274NIGMS NIH HHS P50 GM082250
6 · The paper itself

Abstract

Transcription of HIV provirus is a key step of the viral cycle, and depends on the recruitment of the cellular positive transcription elongation factor b (P-TEFb) to the HIV promoter. The viral transactivator Tat can displace P-TEFb from the 7SK small nuclear ribonucleoprotein, where it is bound and inactivated by HEXIM1, and bring it to TAR, which allows the stalled RNA polymerase II to transition to successful transcription elongation. In this study, we designed a chimeric inhibitor of HIV transcription by combining functional domains from HEXIM1 and Tat. The chimera (HT1) potently inhibited gene expression from the HIV promoter, by competing with Tat for TAR and P-TEFb binding, while keeping the latter inactive. HT1 inhibited spreading infection as well as viral reactivation in lymphocyte T cell line models of HIV latency, with little effect on cellular transcription and metabolism. This proof-of-concept study validates an innovative approach to interfering with HIV transcription via peptide mimicry and competition for RNA-protein interactions. HT1 represents a new candidate for HIV therapy, or HIV cure via the proposed block and lock strategy.

Indexed as

HEK293 CellsHeLa CellsHIV-1HIV InfectionsHIV Long Terminal RepeatHIV SeropositivityHumansJurkat CellsProvirusesRecombinant Fusion ProteinsRNA-Binding ProteinsRNA Polymerase IItat Gene Products, Human Immunodeficiency VirusTranscription FactorsVirus LatencyVirus ReplicationHEXIM1 protein, humanRecombinant Fusion ProteinsRNA-Binding ProteinsRNA Polymerase IItat Gene Products, Human Immunodeficiency VirusTranscription Factors

Identifiers

PMID30395647
PMCPMC6245832
OpenAlexW2899822548

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.