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Updated: Oct 7, 2025

Isolation and Flow Cytometric Analysis of Glioma-infiltrating Peripheral Blood Mononuclear Cells
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Published on: November 28, 2015

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Functional virus-specific memory T cells survey glioblastoma

Jianfang Ning1, Noah V Gavil2, Shaoping Wu1

  • 1Department of Neurosurgery, University of Minnesota, Minneapolis, MN, 55455, USA.

Cancer Immunology, Immunotherapy : CII
|January 10, 2022
PubMed

Insights

Virus-specific memory T cells are found in glioblastoma tumors. Reactivating these cells with viral peptides can boost the immune response against cancer, improving survival in mouse models.

Area of Science:

  • Immunology
  • Oncology
  • Neuroscience

Background:

  • Glioblastoma multiforme (GBM) is a highly aggressive brain cancer with poor prognosis.
  • GBM exhibits significant local and systemic immunosuppression, hindering effective immunotherapy.
  • Virus-specific memory T cells are known for rapid and potent immune activation.

Purpose of the Study:

  • To investigate the presence and role of virus-specific memory T cells in the glioblastoma microenvironment.
  • To explore the potential of reactivating these T cells for anti-glioblastoma immunity.

Main Methods:

  • Analysis of glioblastoma tissue from mice and humans to identify virus-specific memory CD8+ T cells.
  • Intratumoral delivery of adjuvant-free virus-derived peptides to reactivate T cells in a murine glioblastoma model.

Main Results:

  • Virus-specific memory CD8+ T cells expressing tissue-resident markers were found in both mouse and human glioblastoma.
  • Intratumoral peptide delivery induced local immune activation.
  • This approach demonstrated antineoplastic effects and improved survival in mice with glioblastoma.

Conclusions:

  • Virus-specific memory T cells are a key component of the glioblastoma immune microenvironment.
  • Targeting these cells offers a promising strategy to enhance anti-tumoral immunity against glioblastoma.
Keywords:
GlioblastomaMemory CD8 + T cell

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