Interferons Transcriptionally Up-Regulate MLKL Expression in Cancer Cells.
Caspases
/ metabolism
Cell Line, Tumor
Gene Expression Regulation, Neoplastic
/ drug effects
Humans
Interferon Regulatory Factor-1
/ metabolism
Interferons
/ metabolism
Neoplasms
/ genetics
Protein Kinases
/ genetics
RNA, Messenger
/ genetics
STAT1 Transcription Factor
/ metabolism
Transcriptional Activation
/ drug effects
Journal
Neoplasia (New York, N.Y.)
ISSN: 1476-5586
Titre abrégé: Neoplasia
Pays: United States
ID NLM: 100886622
Informations de publication
Date de publication:
01 2019
01 2019
Historique:
received:
06
08
2018
revised:
07
11
2018
accepted:
09
11
2018
pubmed:
7
12
2018
medline:
12
2
2019
entrez:
7
12
2018
Statut:
ppublish
Résumé
Interferons (IFNs) are key players in the tumor immune response and act by inducing the expression of IFN-stimulated genes (ISGs). Here, we identify the mixed-lineage kinase domain-like pseudokinase (MLKL) as an ISG in various cancer cell lines. Both type I and type II IFNs increase the expression of MLKL indicating that MLKL up-regulation is a general feature of IFN signaling. IFNγ up-regulates mRNA as well as protein levels of MLKL demonstrating that IFNγ transcriptionally regulates MLKL. This notion is further supported by Actinomycin D chase experiments showing that IFNγ-stimulated up-regulation of MLKL is prevented in the presence of the transcriptional inhibitor Actinomycin D. Also, knockdown of the transcription factor IFN-regulatory factor 1 (IRF1) and signal transducer and activator of transcription (STAT) 1 as well as knockout of IRF1 significantly attenuate IFNγ-mediated induction of MLKL mRNA levels. Up-regulation of MLKL by IFNγ provides a valuable tool to sensitize cells towards necroptotic cell death and to overcome apoptosis resistance of cancer cells.
Identifiants
pubmed: 30521981
pii: S1476-5586(18)30436-6
doi: 10.1016/j.neo.2018.11.002
pmc: PMC6310689
pii:
doi:
Substances chimiques
IRF1 protein, human
0
Interferon Regulatory Factor-1
0
RNA, Messenger
0
STAT1 Transcription Factor
0
STAT1 protein, human
0
Interferons
9008-11-1
MLKL protein, human
EC 2.7.-
Protein Kinases
EC 2.7.-
Caspases
EC 3.4.22.-
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
74-81Informations de copyright
Copyright © 2018. Published by Elsevier Inc.
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