Cell Reports (Jun 2018)

Neutrophils Kill Antibody-Opsonized Cancer Cells by Trogoptosis

  • Hanke L. Matlung,
  • Liane Babes,
  • Xi Wen Zhao,
  • Michel van Houdt,
  • Louise W. Treffers,
  • Dieke J. van Rees,
  • Katka Franke,
  • Karin Schornagel,
  • Paul Verkuijlen,
  • Hans Janssen,
  • Pasi Halonen,
  • Cor Lieftink,
  • Roderick L. Beijersbergen,
  • Jeanette H.W. Leusen,
  • Jaap J. Boelens,
  • Ingrid Kuhnle,
  • Jutte van der Werff Ten Bosch,
  • Karl Seeger,
  • Sergio Rutella,
  • Daria Pagliara,
  • Takashi Matozaki,
  • Eiji Suzuki,
  • Catharina Willemien Menke-van der Houven van Oordt,
  • Robin van Bruggen,
  • Dirk Roos,
  • Rene A.W. van Lier,
  • Taco W. Kuijpers,
  • Paul Kubes,
  • Timo K. van den Berg

Journal volume & issue
Vol. 23, no. 13
pp. 3946 – 3959.e6

Abstract

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Summary: Destruction of cancer cells by therapeutic antibodies occurs, at least in part, through antibody-dependent cellular cytotoxicity (ADCC), and this can be mediated by various Fc-receptor-expressing immune cells, including neutrophils. However, the mechanism(s) by which neutrophils kill antibody-opsonized cancer cells has not been established. Here, we demonstrate that neutrophils can exert a mode of destruction of cancer cells, which involves antibody-mediated trogocytosis by neutrophils. Intimately associated with this is an active mechanical disruption of the cancer cell plasma membrane, leading to a lytic (i.e., necrotic) type of cancer cell death. Furthermore, this mode of destruction of antibody-opsonized cancer cells by neutrophils is potentiated by CD47-SIRPα checkpoint blockade. Collectively, these findings show that neutrophil ADCC toward cancer cells occurs by a mechanism of cytotoxicity called trogoptosis, which can be further improved by targeting CD47-SIRPα interactions. : Matlung et al. identify trogoptosis as an immune cell-mediated mechanism of cytotoxicity, demonstrating that neutrophil-mediated destruction of antibody-opsonized cancer cells occurs through a specific process that is distinct from that used by other immune cells. Keywords: antibody-dependent cellular cytotoxicity, neutrophils, CD47-SIRPα interaction, trogocytosis, trogoptosis