Nature Communications (May 2021)

Targeting Treg cells with GITR activation alleviates resistance to immunotherapy in murine glioblastomas

  • Zohreh Amoozgar,
  • Jonas Kloepper,
  • Jun Ren,
  • Rong En Tay,
  • Samuel W. Kazer,
  • Evgeny Kiner,
  • Shanmugarajan Krishnan,
  • Jessica M. Posada,
  • Mitrajit Ghosh,
  • Emilie Mamessier,
  • Christina Wong,
  • Gino B. Ferraro,
  • Ana Batista,
  • Nancy Wang,
  • Mark Badeaux,
  • Sylvie Roberge,
  • Lei Xu,
  • Peigen Huang,
  • Alex K. Shalek,
  • Dai Fukumura,
  • Hye-Jung Kim,
  • Rakesh K. Jain

DOI
https://doi.org/10.1038/s41467-021-22885-8
Journal volume & issue
Vol. 12, no. 1
pp. 1 – 16

Abstract

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Glioblastomas (GBM) are frequently resistant to immune checkpoint blockade therapy. Here the authors show that treatment with an agonistic anti-GITR antibody converts tumor infiltrating regulatory T cells to effector cells, overcoming resistance to PD1 blockade in preclinical models of GBM.