Neutrophils in cancer: from biology to therapy

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Abstract

The view of neutrophils has shifted from simple phagocytic cells, whose main function is to kill pathogens, to very complex cells that are also involved in immune regulation and tissue repair. These cells are essential for maintaining and regaining tissue homeostasis. Neutrophils can be viewed as double-edged swords in a range of situations. The potent killing machinery necessary for immune responses to pathogens can easily lead to collateral damage to host tissues when inappropriately controlled. Furthermore, some subtypes of neutrophils are potent pathogen killers, whereas others are immunosuppressive or can aid in tissue healing. Finally, in tumor immunology, many examples of both protumorigenic and antitumorigenic properties of neutrophils have been described. This has important consequences for cancer therapy, as targeting neutrophils can lead to either suppressed or stimulated antitumor responses. This review will discuss the current knowledge regarding the pro- and antitumorigenic roles of neutrophils, leading to the concept of a confused state of neutrophil-driven pro-/antitumor responses.

Original languageEnglish
Pages (from-to)4-23
Number of pages20
JournalCellular and Molecular Immunology
Volume22
Issue number1
Early online date9 Dec 2024
DOIs
Publication statusPublished - 2025

Keywords

  • cancer
  • confused immune response
  • immune suppression
  • myeloid derived suppressor cells
  • neutrophil
  • tumor-associated neutrophils

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