Life (Aug 2022)

Macrophages in Glioblastoma Development and Therapy: A Double-Edged Sword

  • Mengwan Wu,
  • Ying Shi,
  • Luyi Zhu,
  • Luoyi Chen,
  • Xinchen Zhao,
  • Chuan Xu

DOI
https://doi.org/10.3390/life12081225
Journal volume & issue
Vol. 12, no. 8
p. 1225

Abstract

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Glioblastoma (GBM) is one of the leading lethal tumors, featuring aggressive malignancy and poor outcome to current standard temozolomide (TMZ) or radio-based therapy. Developing immunotherapies, especially immune checkpoint inhibitors, have improved patient outcomes in other solid tumors but remain fatigued in GBM patients. Emerging evidence has shown that GBM-associated macrophages (GAMs), comprising brain-resident microglia and bone marrow-derived macrophages, act critically in boosting tumor progression, altering drug resistance, and establishing an immunosuppressive environment. Based on its crucial role, evaluations of the safety and efficacy of GAM-targeted therapy are ongoing, with promising (pre)clinical evidence updated. In this review, we summarized updated literature related to GAM nature, the interplay between GAMs and GBM cells, and GAM-targeted therapeutic strategies.

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