A TLR3 ligand reestablishes chemotherapeutic responses in the context of FPR1 deficiency

Julie Le Naour, Peng Liu, Liwei Zhao, Sandy Adjemian, Zsofia Sztupinszki, Julien Taieb, Claire Mulot, Aymeric Silvin, Charles Antoine Dutertre, Florent Ginhoux, Allan Sauvat, Giulia Cerrato, Francesca Castoldi, Isabelle Martins, Gautier Stoll, Juliette Paillet, Khady Mangane, Cornelia Richter, Oliver Kepp, Maria Chiara MaiuriFederico Pietrocola, Peter Vandenabeele, Fabrice André, Suzette Delaloge, Zoltan Szallasi, Pierre Laurent-Puig, Jessica Zucman-Rossi, Laurence Zitvogel, Jonathan G. Pol, Erika Vacchelli, Guido Kroemer

    Résultats de recherche: Contribution à un journalArticleRevue par des pairs

    32 Citations (Scopus)

    Résumé

    For anthracycline-based chemotherapy to be immunogenic, dying cancer cells must release annexin A1 (ANXA1) that subsequently interacts with the pattern recognition receptor, formyl peptide receptor 1 (FPR1), on the surface of dendritic cells (DC). Approximately 30% of individuals bear loss-of-function alleles of FPR1, calling for strategies to ameliorate their anticancer immune response. Here, we show that immunotherapy with a ligand of Toll-like receptor-3, polyinosinic:polycytidylic acid (pIC), restores the defi cient response to chemotherapy of tumors lacking ANXA1 developing in immunocompetent mice or those of normal cancers growing in FPR1-defi cient mice. This effect was accompanied by improved DC- and T-lymphocyte-mediated anticancer immunity. Of note, carcinogen-induced breast cancers precociously developed in FPR1-defi cient mice as compared with wild-type controls. A similar tendency for earlier cancer development was found in patients carrying the loss-of-function allele of FPR1. These fi ndings have potential implications for the clinical management of FPR1-defi cient patients.

    langue originaleAnglais
    Pages (de - à)408-423
    Nombre de pages16
    journalCancer Discovery
    Volume11
    Numéro de publication2
    Les DOIs
    étatPublié - 1 févr. 2021

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