Antitumoral effects of attenuated Listeria monocytogenes in a genetically engineered mouse model of melanoma

Marianna Vitiello, Monica Evangelista, Nicole Di Lascio, Claudia Kusmic, Annamaria Massa, Francesca Orso, Samanta Sarti, Andrea Marranci, Katarzyna Rodzik, Lorenzo Germelli, Dinesh Chandra, Alessandra Salvetti, Angela Pucci, Daniela Taverna, Francesco Faita, Claudia Gravekamp, Laura Poliseno

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

Attenuated Listeria monocytogenes (Lmat-LLO) represents a valuable anticancer vaccine and drug delivery platform. Here we show that in vitro Lmat-LLO causes ROS production and, in turn, apoptotic killing of a wide variety of melanoma cells, irrespectively of their stage, mutational status, sensitivity to BRAF inhibitors or degree of stemness. We also show that, when administered in the therapeutic setting to Braf/Pten genetically engineered mice, Lmat-LLO causes a strong decrease in the size and volume of primary melanoma tumors, as well as a reduction of the metastatic burden. At the molecular level, we confirm that the anti-melanoma activity exerted in vivo by Lmat-LLO depends also on its ability to potentiate the immune response of the organism against the infected tumor. Our data pave the way to the preclinical testing of listeria-based immunotherapeutic strategies against metastatic melanoma, using a genetically engineered mouse rather than xenograft models.

Original languageEnglish (US)
Pages (from-to)3756-3762
Number of pages7
JournalOncogene
Volume38
Issue number19
DOIs
StatePublished - May 9 2019

ASJC Scopus subject areas

  • Molecular Biology
  • Genetics
  • Cancer Research

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    Vitiello, M., Evangelista, M., Di Lascio, N., Kusmic, C., Massa, A., Orso, F., Sarti, S., Marranci, A., Rodzik, K., Germelli, L., Chandra, D., Salvetti, A., Pucci, A., Taverna, D., Faita, F., Gravekamp, C., & Poliseno, L. (2019). Antitumoral effects of attenuated Listeria monocytogenes in a genetically engineered mouse model of melanoma. Oncogene, 38(19), 3756-3762. https://doi.org/10.1038/s41388-019-0681-1