Evidence map›Paper›PMID 15504835›Full record

ArticleAntimicrobial agents and chemotherapy2004

Novel chemical class of pUL97 protein kinase-specific inhibitors with strong anticytomegaloviral activity.

Thomas Herget, Martina Freitag, Monika Morbitzer, Regina Kupfer, Thomas Stamminger, Manfred Marschall

Open access · greenAbstract read
In one paragraph

Article in Antimicrobial agents and chemotherapy, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing 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

22 citing papers in PubMed, 141 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Host-Directed Antiviral Therapy.Clinical microbiology reviews · 2020
    Review
  6. Review
  7. Moving Past Ganciclovir and Foscarnet: Advances in CMV Therapy.Current hematologic malignancy reports · 2020
    Review
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Cytomegalovirus antivirals and development of improved animal models.Expert opinion on drug metabolism & toxicology · 2011
    Review
  17. Review
  18. Review
  19. Article
  20. Conserved herpesvirus protein kinases.Biochimica et biophysica acta · 2008
    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

6 authors at 2 institutions in 1 country.

Thomas HergetInstitute for Clinical and Molecular Virology, University of Erlangen-Nürnberg, Erlangen 91054, Germany. manfred.marschall@viro.med.uni-erlangen.de
Martina Freitag
Monika Morbitzer
Regina Kupfer
Thomas Stamminger
Manfred Marschall
Friedrich-Alexander-Universität Erlangen-Nürnberg · DEPhenex Pharmaceuticals (Germany) · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Human cytomegalovirus (HCMV) is a major human pathogen frequently associated with life-threatening disease in immunosuppressed patients and newborns. The HCMV UL97-encoded protein kinase (pUL97) represents an important determinant of viral replication. Recent studies demonstrated that pUL97-specific kinase inhibitors are powerful tools for the control of HCMV replication. We present evidence that three related quinazoline compounds are potent inhibitors of the pUL97 kinase activity and block in vitro substrate phosphorylation, with 50% inhibitory concentrations (IC(50)s) between 30 and 170 nM. Replication of HCMV in primary human fibroblasts was suppressed with a high efficiency. The IC(50)s of these three quinazoline compounds (2.4 +/- 0.4, 3.4 +/- 0.6, and 3.9 +/- 1.1 microM, respectively) were in the range of the IC(50) of ganciclovir (1.2 +/- 0.2 microM), as determined by the HCMV green fluorescent protein-based antiviral assay. Importantly, the quinazolines were demonstrated to have strong inhibitory effects against clinical HCMV isolates, including ganciclovir- and cidofovir-resistant virus variants. Moreover, in contrast to ganciclovir, the formation of resistance to the quinazolines was not observed. The mechanisms of action of these compounds were confirmed by kinetic analyses with infected cells. Quinazolines specifically inhibited viral early-late protein synthesis but had no effects at other stages of the replication cycle, such as viral entry, consistent with a blockage of the pUL97 function. In contrast to epithelial growth factor receptor inhibitors, quinazolines affected HCMV replication even when they were added hours after virus adsorption. Thus, our findings indicate that quinazolines are highly efficient inhibitors of HCMV replication in vitro by targeting pUL97 protein kinase activity.

Indexed as

Antiviral AgentsBlotting, WesternCell LineCells, CulturedCidofovirCytomegalovirusCytosineDrug Resistance, ViralEnzyme InhibitorsGanciclovirHumansOrganophosphonatesPhosphotransferases (Alcohol Group Acceptor)PlasmidsQuinazolinesViral Plaque AssayAntiviral AgentsCidofovirCytosineEnzyme InhibitorsGanciclovirganciclovir kinaseOrganophosphonatesPhosphotransferases (Alcohol Group Acceptor)Quinazolines

Identifiers

PMID15504835
PMCPMC525407
OpenAlexW2092489808

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.