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Cell Rep. 2016 Aug 30;16(9):2348-58. doi: 10.1016/j.celrep.2016.07.075. Epub 2016 Aug 18.

Nrf2 Induces IL-17D to Mediate Tumor and Virus Surveillance.

Author information

1
Department of Pathology, University of California, San Diego, San Diego, CA 92093, USA.
2
Moores Cancer Center Oncogenomics Laboratory, University of California, San Diego, San Diego, CA 92093, USA.
3
Immunology Program, Memorial Sloan-Kettering Cancer Center, New York, NY 10065, USA.
4
Department of Pathology, University of California, San Diego, San Diego, CA 92093, USA. Electronic address: jbui@ucsd.edu.

Abstract

Cells undergoing xenobiotic or oxidative stress activate the transcription factor nuclear factor erythroid-derived 2-like 2 (Nrf2), which initiates an intrinsic "stress surveillance" pathway. We recently found that the cytokine IL-17D effects a form of extrinsic stress surveillance by inducing antitumor immunity, but how IL-17D is regulated remains unknown. Here, we show that Nrf2 induced IL-17D in cancer cell lines. Moreover, both Nrf2 and IL-17D were induced in primary tumors as well as during viral infection in vivo. Expression of IL-17D in tumors and virally infected cells is essential for optimal protection of the host as il17d(-/-) mice experienced a higher incidence of tumors and exacerbated viral infections compared to wild-type (WT) animals. Moreover, activating Nrf2 to induce IL-17D in established tumors led to natural killer cell-dependent tumor regression. These data demonstrate that Nrf2 can initiate both intrinsic and extrinsic stress surveillance pathways and highlight the use of Nrf2 agonists as immune therapies for cancer and infection.

KEYWORDS:

NK cells; Nrf2; immunosurveillance; innate immunity; interleukin-17D; tumor rejection

PMID:
27545889
PMCID:
PMC5007173
DOI:
10.1016/j.celrep.2016.07.075
[Indexed for MEDLINE]
Free PMC Article

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