10.01.2022 | Original Article
Functional virus-specific memory T cells survey glioblastoma
verfasst von:
Jianfang Ning, Noah V. Gavil, Shaoping Wu, Sathi Wijeyesinghe, Eyob Weyu, Jun Ma, Ming Li, Florina-Nicoleta Grigore, Sanjay Dhawan, Alexander G. J. Skorput, Shawn C. Musial, Clark C. Chen, David Masopust, Pamela C. Rosato
Erschienen in:
Cancer Immunology, Immunotherapy
|
Ausgabe 8/2022
Einloggen, um Zugang zu erhalten
Abstract
Glioblastoma multiforme (GBM) is among the most aggressive, treatment-resistant cancers, and despite standard of care surgery, radiation and chemotherapy, is invariably fatal. GBM is marked by local and systemic immunosuppression, contributing to resistance to existing immunotherapies that have had success in other tumor types. Memory T cells specific for previous infections reside in tissues throughout the host and are capable of rapid and potent immune activation. Here, we show that virus-specific memory CD8 + T cells expressing tissue-resident markers populate the mouse and human glioblastoma microenvironment. Reactivating virus-specific memory T cells through intratumoral delivery of adjuvant-free virus-derived peptide triggered local immune activation. This delivery translated to antineoplastic effects, which improved survival in a murine glioblastoma model. Our results indicate that virus-specific memory T cells are a significant part of the glioblastoma immune microenvironment and may be leveraged to promote anti-tumoral immunity.