Flow cytometry analysis of endothelial cells and subsets of exhausted CD8+ T cells in murine tumor models

Here, we present a protocol for flow cytometry analysis of endothelial cells (ECs) and CD8+ T cells in murine tumor models, at baseline and after cancer immuno-therapy with anti-PD-1/anti-CTLA-4 antibodies. We provide gating strategies for identification of specific cell subsets including ECs from tumor-associated high endothelial venules (TA-HEVs), stem-like, and terminally exhausted CD8+ T cells. This protocol represents a valuable tool for the analysis of rare subsets of tumor ECs and CD8+ T cells with critical roles in antitumor immunity.For complete details on the use and execution of this protocol, please refer to Asrir et al. (2022).

Automated summary

This article presents a protocol for flow cytometry analysis of endothelial cells (ECs) and CD8+ T cells in murine tumor models, including baseline and post-immunotherapy analysis. The protocol is valuable for studying rare subsets of cells that play critical roles in antitumor immunity.