The local microenvironment drives activation of neutrophils in human brain tumors.
TNF-alpha
angiogenesis
brain metastasis
glioblastoma
glioma
immune suppression
myeloid niche
neutrophil-to-lymphocyte ratio
tumor immune microenvironment
tumor immunology
tumor microenvironment
Journal
Cell
ISSN: 1097-4172
Titre abrégé: Cell
Pays: United States
ID NLM: 0413066
Informations de publication
Date de publication:
12 Oct 2023
12 Oct 2023
Historique:
received:
26
10
2022
revised:
11
07
2023
accepted:
31
08
2023
pubmed:
29
9
2023
medline:
29
9
2023
entrez:
28
9
2023
Statut:
ppublish
Résumé
Neutrophils are abundant immune cells in the circulation and frequently infiltrate tumors in substantial numbers. However, their precise functions in different cancer types remain incompletely understood, including in the brain microenvironment. We therefore investigated neutrophils in tumor tissue of glioma and brain metastasis patients, with matched peripheral blood, and herein describe the first in-depth analysis of neutrophil phenotypes and functions in these tissues. Orthogonal profiling strategies in humans and mice revealed that brain tumor-associated neutrophils (TANs) differ significantly from blood neutrophils and have a prolonged lifespan and immune-suppressive and pro-angiogenic capacity. TANs exhibit a distinct inflammatory signature, driven by a combination of soluble inflammatory mediators including tumor necrosis factor alpha (TNF-ɑ) and Ceruloplasmin, which is more pronounced in TANs from brain metastasis versus glioma. Myeloid cells, including tumor-associated macrophages, emerge at the core of this network of pro-inflammatory mediators, supporting the concept of a critical myeloid niche regulating overall immune suppression in human brain tumors.
Identifiants
pubmed: 37769657
pii: S0092-8674(23)00977-7
doi: 10.1016/j.cell.2023.08.043
pii:
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
4546-4566.e27Subventions
Organisme : NIAID NIH HHS
ID : R01 AI165661
Pays : United States
Informations de copyright
Copyright © 2023 The Authors. Published by Elsevier Inc. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of interests D.C. has received consulting fees from Seed Biosciences S.A.; P.W. has provided consulting for Almax, Bayer, Sanofi, and Genentech. A.H. is a paid consultor for Flagship Pioneering, Inc. for matters unrelated to this study; M.E.H. has an advisory role at TME Pharma; J.A.J. received an honorarium for speaking at a Bristol Meyers Squibb research symposium and previously served on the scientific advisory board of Pionyr Immunotherapeutics.