Format

Send to

Choose Destination
Oncoimmunology. 2019 Jun 11;8(9):e1624129. doi: 10.1080/2162402X.2019.1624129. eCollection 2019.

Neutrophil Cathepsin G and Tumor Cell RAGE Facilitate Neutrophil Anti-Tumor Cytotoxicity.

Author information

1
Department of Developmental Biology and Cancer Research, Institute for Medical Research Israel Canada, Hebrew University Medical School, Jerusalem, Israel.
2
Division of Rheumatology, Washington University in St. Louis, St. Louis, MO, USA.

Abstract

Neutrophils are a heterogeneous population of myeloid cells which may either promote or hinder tumor growth and progression. Anti-tumor neutrophils have the capacity to kill tumor cells in a contact-dependent manner. However, the molecular mechanisms underlying tumor cell recognition by neutrophils remained unexplored. Tumor cells were shown to express aberrant glycosylation patterns and neutrophils are equipped with receptors capable of recognizing such glycosylations. Accordingly, we hypothesized that the receptor for advanced glycation end products (RAGE) may facilitate neutrophil recognition of tumor cells. Indeed, RAGE decoy receptors and RAGE-specific blocking antibodies dramatically reduce tumor cell susceptibility to neutrophil cytotoxicity. Unexpectedly, we found that tumor cell RAGE rather than neutrophil RAGE is important for the killing process. We further identified neutrophil Cathepsin G as the neutrophil component interacting with tumor cell RAGE. Cathepsin G-deficient neutrophils show impaired ability to kill tumor cells, suggesting that RAGE-Cathepsin G interaction is required for neutrophil cytotoxicity. These data unravel new aspects of neutrophil anti-tumor activity and identify a novel role for RAGE and Cathepsin G in neutrophil-mediated cytotoxicity.

KEYWORDS:

Cathepsin G; RAGE; neutrophil cytotoxicity; tumor cell killing

PMID:
31428521
PMCID:
PMC6685517
[Available on 2020-06-11]
DOI:
10.1080/2162402X.2019.1624129

Supplemental Content

Full text links

Icon for Taylor & Francis
Loading ...
Support Center