Evidence map›Paper›PMID 25347735›Full record

ArticleOncogene2015

Oncogenic Ras inhibits IRF1 to promote viral oncolysis.

Y Komatsu, S L Christian, N Ho, T Pongnopparat, M Licursi, K Hirasawa

Abstract read
PubMed Publisher
In one paragraph

Article in Oncogene, 2015. 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
3.7field-weighted citation impact, top 7% 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, 38 citations in OpenAlex.

  1. Review
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  3. Type I interferon signaling pathway enhances immune-checkpoint inhibition in KRAS mutant lung tumors.Proceedings of the National Academy of Sciences of the United States of America · 2024
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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.

Y KomatsuDivision of BioMedical Sciences, Faculty of Medicine, St John's, Newfoundland, Canada.
S L ChristianDepartment of Biochemistry, Faculty of Science, Memorial University of Newfoundland, St John's, Newfoundland, Canada.
N HoDivision of BioMedical Sciences, Faculty of Medicine, St John's, Newfoundland, Canada.
T PongnopparatDivision of BioMedical Sciences, Faculty of Medicine, St John's, Newfoundland, Canada.
M LicursiDivision of BioMedical Sciences, Faculty of Medicine, St John's, Newfoundland, Canada.
K HirasawaDivision of BioMedical Sciences, Faculty of Medicine, St John's, Newfoundland, Canada.
St. John’s Health Sciences Centre · CAMemorial University of Newfoundland · CA

Funding

Canadian Institutes of Health Research
6 · The paper itself

Abstract

Oncolytic viruses exploit common molecular changes in cancer cells, which are not present in normal cells, to target and kill cancer cells. Ras transformation and defects in type I interferon (IFN)-mediated antiviral responses are known to be the major mechanisms underlying viral oncolysis. Previously, we demonstrated that oncogenic RAS/Mitogen-activated protein kinase kinase (Ras/MEK) activation suppresses the transcription of many IFN-inducible genes in human cancer cells, suggesting that Ras transformation underlies type I IFN defects in cancer cells. Here, we investigated how Ras/MEK downregulates IFN-induced transcription. By conducting promoter deletion analysis of IFN-inducible genes, namely guanylate-binding protein 2 and IFN gamma inducible protein 47 (Ifi47), we identified the IFN regulatory factor 1 (IRF1) binding site as the promoter region responsible for the regulation of transcription by MEK. MEK inhibition promoted transcription of the IFN-inducible genes in wild type mouse embryonic fibroblasts (MEFs), but not in IRF1(-/-) MEFs, showing that IRF1 is involved in MEK-mediated downregulation of IFN-inducible genes. Furthermore, IRF1 protein expression was lower in RasV12 cells compared with vector control NIH3T3 cells, but was restored to equivalent levels by inhibition of MEK. Similarly, the restoration of IRF1 expression by MEK inhibition was observed in human cancer cells. IRF1 re-expression in human cancer cells caused cells to become resistant to infection by the oncolytic vesicular stomatitis virus strain. Together, this work demonstrates that Ras/MEK activation in cancer cells downregulates transcription of IFN-inducible genes by targeting IRF1 expression, resulting in increased susceptibility to viral oncolysis.

Indexed as

AnimalsCell Line, TumorGene Expression Regulation, NeoplasticHumansInterferon-gammaInterferon Regulatory Factor-1MAP Kinase Signaling SystemMiceNIH 3T3 CellsOncolytic Virusesras ProteinsTranscription, GeneticVesiculovirusInterferon-gammaInterferon Regulatory Factor-1IRF1 protein, humanras Proteins

Identifiers

PMID25347735
OpenAlexW2043823867

What OpenQuestion holds

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Registered trials

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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.