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The Journal of Experimental Medicine
Article
License: CC BY NC SA
Data sources: UnpayWall
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PubMed Central
Other literature type . 2013
Data sources: PubMed Central
The Journal of Experimental Medicine
Article . 2013 . Peer-reviewed
Data sources: Crossref
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p53-dependent chemokine production by senescent tumor cells supports NKG2D-dependent tumor elimination by natural killer cells

Authors: Iannello, Alexandre; Thompson, Thornton W; Ardolino, Michele; Lowe, Scott W; Raulet, David H;

p53-dependent chemokine production by senescent tumor cells supports NKG2D-dependent tumor elimination by natural killer cells

Abstract

The induction of cellular senescence is an important mechanism by which p53 suppresses tumorigenesis. Using a mouse model of liver carcinoma, where cellular senescence is triggered in vivo by inducible p53 expression, we demonstrated that NK cells participate in the elimination of senescent tumors. The elimination of senescent tumor cells is dependent on NKG2D. Interestingly, p53 restoration neither increases ligand expression nor increases the sensitivity to lysis by NK cells. Instead, p53 restoration caused tumor cells to secrete various chemokines with the potential to recruit NK cells. Antibody-mediated neutralization of CCL2, but not CCL3, CCL4 or CCL5, prevented NK cell recruitment to the senescent tumors and reduced their elimination. Our findings suggest that elimination of senescent tumors by NK cells occurs as a result of the cooperation of signals associated with p53 expression or senescence, which regulate NK cell recruitment, and other signals that induce NKG2D ligand expression on tumor cells.

Country
United States
Keywords

Cytotoxicity, Immunologic, Cytotoxicity, Knockout, Immunology, Ligands, Medical and Health Sciences, Article, Cell Line, Mice, Immunologic, Cell Line, Tumor, Neoplasms, 2.1 Biological and endogenous factors, Killer Cells, Animals, Aetiology, Cellular Senescence, Chemokine CCL2, Cancer, Mice, Knockout, Tumor, Liver Disease, Killer Cells, Natural, NK Cell Lectin-Like Receptor Subfamily K, Natural, Chemokines, Tumor Suppressor Protein p53, Digestive Diseases

  • BIP!
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    citations
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    354
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Top 0.1%
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Top 10%
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Top 1%
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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
354
Top 0.1%
Top 10%
Top 1%
Green
hybrid