Necroptosis Stimulates Interferon-Mediated Protective Anti-Tumor Immunity [preprint]
Chan, Francis ; Rucker, A Justin ; Park, Christa ; Li, Qi-Jing ; Moseman, E Ashley
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Abstract
Necroptosis is an inflammatory form of cell suicide that critically depends on the kinase activity of Receptor Interacting Protein Kinase 3 (RIPK3). Previous studies showed that immunization with necroptotic cells conferred protection against subsequent tumor challenge. Since RIPK3 can also promote apoptosis and NF-κB-dependent inflammation, it remains difficult to determine the contribution of necroptosis-associated release of damage-associated molecular patterns (DAMPs) in anti-tumor immunity. Here, we describe a system that allows us to selectively induce RIPK3-dependent necroptosis or apoptosis with minimal NF-κB-dependent inflammatory cytokine expression. In a syngeneic tumor challenge model, immunization with necroptotic cells conferred superior protection against subsequent tumor challenge. Surprisingly, this protective effect required CD4 T cells rather than CD8 T cells and is dependent on host type I interferon signaling. Our results provide evidence that death-dependent type I interferon production following necroptosis is sufficient to elicit protective anti-tumor immunity.
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Chan F, Rucker AJ, Park C, Li QJ, Moseman EA. Necroptosis Stimulates Interferon-Mediated Protective Anti-Tumor Immunity. Res Sq [Preprint]. 2023 Dec 19:rs.3.rs-3713558. doi: 10.21203/rs.3.rs-3713558/v1. Update in: Cell Death Dis. 2024 Jun 10;15(6):403. doi: 10.1038/s41419-024-06801-8. PMID: 38196632; PMCID: PMC10775377.
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This article is a preprint. Preprints are preliminary reports of work that have not been certified by peer review.
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Now published in Cell Death & Disease doi: https://doi.org/10.1038/s41419-024-06801-8