Increase of blood CSF3R+ myeloid-derived suppressor cell predicts breast cancer recurrence [Immune]
Ontology highlight
ABSTRACT: Early detection of recurrence by using specific biomarkers is still a clinically unmet need although methodologies for monitoring tumor markers, cell-free DNA and circulating tumor cells have been established for decades. Because recurrence is developed from metastatic or dormant cancer cells that are under immune surveillance, alteration in the population and function of immune cells may promote recurrence. In this study, we utilized an animal model to imitate breast tumor recurrence after surgical resection and investigated the abundance and gene expression profile of immune cells by using two NanoString Panels. Our results showed that myeloid-derived-suppressor cells (MDSC) were significantly increased during recurrence. Comparison of our NanoString data with a single-cell RNA sequencing dataset of MDSC in another spontaneous breast cancer model identified colony-stimulating factor 3 receptor (Csf3r)-positive MDSC as a potential marker to predict tumor recurrence. In vitro experiments demonstrated that Csf3R+ MDSC exhibited enhanced ROS levels and stronger T cell suppression ability. Furthermore, these findings were validated in two published PBMC databases.
ORGANISM(S): Mus musculus
PROVIDER: GSE223025 | GEO | 2024/08/18
REPOSITORIES: GEO
ACCESS DATA