PSGL-1 Immune Checkpoint Inhibition for CD4⁺ T Cell Cancer Immunotherapy.

ABSTRACT: Immune checkpoint inhibition targeting T cells has shown tremendous promise in the treatment of many cancer types and are now standard therapies for patients. While standard therapies have focused on PD-1 and CTLA-4 blockade, additional immune checkpoints have shown promise in promoting anti-tumor immunity. PSGL-1, primarily known for its role in cellular migration, has also been shown to function as a negative regulator of CD4⁺ T cells in numerous disease settings including cancer. PSGL-1 is highly expressed on T cells and can engage numerous ligands that impact signaling pathways, which may modulate CD4⁺ T cell differentiation and function. PSGL-1 engagement in the tumor microenvironment may promote CD4⁺ T cell exhaustion pathways that favor tumor growth.

SUBMITTER: DeRogatis JM 

PROVIDER: S-EPMC7940186 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature