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Metabolic and functional reprogramming of myeloid-derived suppressor cells and their therapeutic control in glioblastoma
Journal article   Open access   Peer reviewed

Metabolic and functional reprogramming of myeloid-derived suppressor cells and their therapeutic control in glioblastoma

Woong-Jai Won, Jessy S. Deshane, Jianmei W. Leavenworth, Claudia R. Oliva and Corinne E. Griguer
Cell Stress, Vol.3(2), pp.47-65
02/01/2019
DOI: 10.15698/cst2019.02.176
PMCID: PMC6551710
PMID: 31225500
url
https://doi.org/10.15698/cst2019.02.176View
Published (Version of record) Open Access

Abstract

Glioblastoma, also known as glioblastoma multiforme, is the most common and deadliest form of high-grade malignant brain tumors with limited available treatments. Within the glioblastoma tumor microenvironment (TME), tumor cells, stromal cells, and infiltrating immune cells continuously interact and exchange signals through various secreted factors including cytokines, chemokines, growth factors, and metabolites. Simultaneously, they dynamically reprogram their metabolism according to environmental energy demands such as hypoxia and neo-vascularization. Such metabolic reprogramming can determine fates and functions of tumor cells as well as immune cells. Ultimately, glioma cells in the TME transform immune cells to suppress anti-tumor immune cells such as T, natural killer (NK) cells, and dendritic cells (DC), and evade immune surveillance, and even to promote angiogenesis and tumor metastasis. Glioma-associated microglia/macrophages (GAMM) and myeloid-derived suppressor cells (MDSC) are most abundantly recruited and expanded myeloid lineage cells in glioblastoma TME and mainly lead to immunosuppression. In this review, of myeloid cells we will focus on MDSC as an important driver to induce immunosuppression in glioblastoma. Here, we review current literature on immunosuppressive functions and metabolic reprogramming of MDSCs in glioblastoma and discuss their metabolic pathways as potential therapeutic targets to improve current incurable glioblastoma treatment.
Cell Biology Life Sciences & Biomedicine Science & Technology

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