APCs	Antigen presenting cells
BBB	Blood brain barrier
CAMs	cell adhesion molecules
CNS	Central nervous system
ECM	Extracellular matrix
EMT	Epithelial–mesenchymal transition
EGFR	epidermal growth factors receptor
FDA	Food and Drug Administration
GAG	Glycosaminoglycans
GAM	Glioma-associated macrophage and microglia
GASC	Glioma Associated Stem cells
GBM	Glioblastoma
GCS	Glioma stem cells
MET	mesenchymal–epithelial transition
PD1	Programmed cell Death-1
PRISMA-P	Preferred Reporting Items for Systematic Review and Meta-Analysis Protocols
SIRT1	Sirtuin 1
TCR	T cell receptors
TGF-β	Transforming growth factor-β
TIL	Tumor-infiltrating lymphocytes
TME	Tumor Microenvironment
TMZ	Temozolomide