Evidence map›Paper›PMID 22554282›Full record

ArticleRetrovirology2012

Protein kinase C-delta regulates HIV-1 replication at an early post-entry step in macrophages.

Xavier Contreras, Olfa Mzoughi, Fabrice Gaston, Matija B Peterlin, Elmostafa Bahraoui

Open access · goldAbstract read
In one paragraph

Article in Retrovirology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
2.4field-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

33 citing papers in PubMed, 43 citations in OpenAlex.

  1. Article
  2. Vitamin D-Induced Antimicrobial Peptides in Combating Viral Infections.Advances in experimental medicine and biology · 2026
    Review
  3. Article
  4. Review
  5. Review
  6. Article
  7. The metabolomics of a protein kinase C delta (PKCδ) knock-out mouse model.Metabolomics : Official journal of the Metabolomic Society · 2022
    Article
  8. Article
  9. Article
  10. Junin Virus Activates p38 MAPK and HSP27 Upon Entry.Frontiers in cellular and infection microbiology · 2022
    Article
  11. Review
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
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  20. 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

5 authors at 4 institutions in 2 countries.

Xavier ContrerasUniversité Paul Sabatier, EA 3038, 118 Route de Narbonne, Toulouse 31062, France. contreras.xavier@gmail.com
Olfa Mzoughi
Fabrice Gaston
Matija B Peterlin
Elmostafa Bahraoui
Université Toulouse III - Paul Sabatier · FRCentre National de la Recherche Scientifique · FRHôpital Purpan · FRUniversity 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
NIAID NIH HHS R01 AI49104NIGMS NIH HHS P50 GM082250
6 · The paper itself

Abstract

backgroundMacrophages, which are CD4 and CCR5 positive, can sustain HIV-1 replication for long periods of time. Thus, these cells play critical roles in the transmission, dissemination and persistence of viral infection. Of note, current antiviral therapies do not target macrophages efficiently. Previously, it was demonstrated that interactions between CCR5 and gp120 stimulate PKC. However, the PKC isozymes involved were not identified.

resultsIn this study, we identified PKC-delta as a major cellular cofactor for HIV-1 replication in macrophages. Indeed, PKC-delta was stimulated following the interaction between the virus and its target cell. Moreover, inhibition of PKC-delta blocked the replication of R5-tropic viruses in primary human macrophages. However, this inhibition did not have significant effects on receptor and co-receptor expression or fusion. Additionally, it did not affect the formation of the early reverse transcription product containing R/U5 sequences, but did inhibit the synthesis of subsequent cDNAs. Importantly, the inhibition of PKC-delta altered the redistribution of actin, a cellular cofactor whose requirement for the completion of reverse transcription was previously established. It also prevented the association of the reverse transcription complex with the cytoskeleton.

conclusionThis work highlights the importance of PKC-delta during early steps of the replicative cycle of HIV-1 in human macrophages.

Indexed as

Virus InternalizationVirus ReplicationAcetophenonesActin CytoskeletonBenzopyransCD4 AntigensDNA, ComplementaryHeLa CellsHIV-1HIV InfectionsHost-Pathogen InteractionsHumansIsoenzymesMacrophagesProtein Kinase C-deltaReceptors, CCR5AcetophenonesBenzopyransCD4 AntigensDNA, ComplementaryIsoenzymesPRKCD protein, humanProtein Kinase C-deltaReceptors, CCR5RNA, Small Interferingrottlerin

Identifiers

PMID22554282
PMCPMC3432598
OpenAlexW2138642775

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.