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. 2020 Jun;22(6):716-727.
doi: 10.1038/s41556-020-0510-3. Epub 2020 May 4.

Myeloid PTEN promotes chemotherapy-induced NLRP3-inflammasome activation and antitumour immunity

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Myeloid PTEN promotes chemotherapy-induced NLRP3-inflammasome activation and antitumour immunity

Yi Huang et al. Nat Cell Biol. 2020 Jun.

Abstract

PTEN is a dual-specificity phosphatase that is frequently mutated in human cancer, and its deficiency in cancer has been associated with therapy resistance and poor survival. Although the intrinsic tumour-suppressor function of PTEN has been well established, evidence of its role in the tumour immune microenvironment is lacking. Here, we show that chemotherapy-induced antitumour immune responses and tumour suppression rely on myeloid-cell PTEN, which is essential for chemotherapy-induced activation of the NLRP3 inflammasome and antitumour immunity. PTEN directly interacts with and dephosphorylates NLRP3 to enable NLRP3-ASC interaction, inflammasome assembly and activation. Importantly, supplementation of IL-1β restores chemotherapy sensitivity in mouse myeloid cells with a PTEN deficiency. Clinically, chemotherapy-induced IL-1β production and antitumour immunity in patients with cancer is correlated with PTEN expression in myeloid cells, but not tumour cells. Our results demonstrate that myeloid PTEN can determine chemotherapy responsiveness by promoting NLRP3-dependent antitumour immunity and suggest that myeloid PTEN might be a potential biomarker to predict chemotherapy responses.

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References

    1. Binnewies, M. et al. Understanding the tumor immune microenvironment (TIME) for effective therapy. Nat. Med. 24, 541–550 (2018). - PubMed - PMC - DOI
    1. Zitvogel, L., Galluzzi, L., Smyth, M. J. & Kroemer, G. Mechanism of action of conventional and targeted anticancer therapies: reinstating immunosurveillance. Immunity 39, 74–88 (2013). - PubMed - DOI
    1. Fridman, W. H., Zitvogel, L., Sautes-Fridman, C. & Kroemer, G. The immune contexture in cancer prognosis and treatment. Nat. Rev. Clin. Oncol. 14, 717–734 (2017). - DOI - PubMed
    1. Kroemer, G., Galluzzi, L., Kepp, O. & Zitvogel, L. Immunogenic cell death in cancer therapy. Annu. Rev. Immunol. 31, 51–72 (2013). - PubMed - DOI
    1. Apetoh, L. et al. Toll-like receptor 4-dependent contribution of the immune system to anticancer chemotherapy and radiotherapy. Nat. Med. 13, 1050–1059 (2007). - PubMed - DOI

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