Systemic CD4 immunity and PD-L1/PD-1 blockade immunotherapy

PD-L1/PD-1 blockade immunotherapy has changed the therapeutic approaches for the treatment of many cancers. Nevertheless, the mechanisms underlying its efficacy or treatment failure are still unclear. Proficient systemic immunity seems to be a prerequisite for efficacy, as recently shown in patients...

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Detalles Bibliográficos
Autores: Escors Murugarren, David, Bocanegra Gondán, Ana Isabel, Chocarro de Erauso, Luisa, Blanco, Ester, Piñeiro Hermida, Sergio, Garnica, Maider, Fernández Rubio, Leticia, Vera García, Ruth, Arasanz Esteban, Hugo, Kochan, Grazyna
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2022
País:España
Institución:Universidad Pública de Navarra
Repositorio:Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
OAI Identifier:oai:academica-e.unavarra.es:2454/45140
Acceso en línea:https://hdl.handle.net/2454/45140
Access Level:acceso abierto
Palabra clave:Biomarker
Immune checkpoint
T lymphocytes
Descripción
Sumario:PD-L1/PD-1 blockade immunotherapy has changed the therapeutic approaches for the treatment of many cancers. Nevertheless, the mechanisms underlying its efficacy or treatment failure are still unclear. Proficient systemic immunity seems to be a prerequisite for efficacy, as recently shown in patients and in mouse models. It is widely accepted that expansion of anti-tumor CD8 T cell populations is principally responsible for anti-tumor responses. In contrast, the role of CD4 T cells has been less studied. Here we review and discuss the evidence supporting the contribution of CD4 T cells to anti-tumor immunity, especially recent advances linking CD4 T cell subsets to efficacious PD-L1/PD-1 blockade immunotherapy. We also discuss the role of CD4 T cell memory subsets present in peripheral blood before the start of immunotherapies, and their utility as predictors of response.