Interactions between cancer cells and immune cells drive transitions to mesenchymal-like states in glioblastoma.
Cancer Cell
; 39(6): 779-792.e11, 2021 06 14.
Article
in En
| MEDLINE
| ID: mdl-34087162
The mesenchymal subtype of glioblastoma is thought to be determined by both cancer cell-intrinsic alterations and extrinsic cellular interactions, but remains poorly understood. Here, we dissect glioblastoma-to-microenvironment interactions by single-cell RNA sequencing analysis of human tumors and model systems, combined with functional experiments. We demonstrate that macrophages induce a transition of glioblastoma cells into mesenchymal-like (MES-like) states. This effect is mediated, both in vitro and in vivo, by macrophage-derived oncostatin M (OSM) that interacts with its receptors (OSMR or LIFR) in complex with GP130 on glioblastoma cells and activates STAT3. We show that MES-like glioblastoma states are also associated with increased expression of a mesenchymal program in macrophages and with increased cytotoxicity of T cells, highlighting extensive alterations of the immune microenvironment with potential therapeutic implications.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Brain Neoplasms
/
T-Lymphocytes
/
Glioblastoma
/
Tumor-Associated Macrophages
Type of study:
Prognostic_studies
Limits:
Animals
/
Humans
Language:
En
Journal:
Cancer Cell
Journal subject:
NEOPLASIAS
Year:
2021
Document type:
Article
Country of publication:
United States