Lujambio, A., Akkari, L., Simon, J., Grace, D., Tschaharganeh, D. F., Bolden, J. E., Zhao, Z., Thapar, V., Joyce, J. A., Krizhanovsky, V., Lowe, S. W. (2013) Non-cell-autonomous tumor suppression by p53. Cell, 153 (2). pp. 449-460.
Abstract
The p53 tumor suppressor can restrict malignant transformation by triggering cell-autonomous programs of cell-cycle arrest or apoptosis. p53 also promotes cellular senescence, a tumor-suppressive program that involves stable cell-cycle arrest and secretion of factors that modify the tissue microenvironment. In the presence of chronic liver damage, we show that ablation of a p53-dependent senescence program in hepatic stellate cells increases liver fibrosis and cirrhosis associated with reduced survival and enhances the transformation of adjacent epithelial cells into hepatocellular carcinoma. p53-expressing senescent stellate cells release factors that skew macrophage polarization toward a tumor-inhibiting M1-state capable of attacking senescent cells in culture, whereas proliferating p53-deficient stellate cells secrete factors that stimulate polarization of macrophages into a tumor-promoting M2-state and enhance the proliferation of premalignant cells. Hence, p53 can act non-cell autonomously to suppress tumorigenesis by promoting an antitumor microenvironment, in part, through secreted factors that modulate macrophage function. © 2013 Elsevier Inc.
| Item Type: | Paper |
|---|---|
| Subjects: | bioinformatics > genomics and proteomics > genetics & nucleic acid processing > DNA, RNA structure, function, modification > genes, structure and function bioinformatics > genomics and proteomics > genetics & nucleic acid processing > DNA, RNA structure, function, modification > genes, structure and function > genes: types bioinformatics > genomics and proteomics > genetics & nucleic acid processing > DNA, RNA structure, function, modification > genes, structure and function > genes: types > p53 |
| CSHL Authors: | |
| Communities: | CSHL labs > Lowe lab |
| Depositing User: | Matt Covey |
| Date: | 2013 |
| Date Deposited: | 22 May 2013 19:21 |
| Last Modified: | 19 Jul 2021 14:19 |
| PMCID: | PMC3702034 |
| Related URLs: | |
| URI: | https://repository.cshl.edu/id/eprint/28309 |
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