BTSCs	brain tumor stem cells
CEC	ciliated ependymoma cells
CIMP	CpG island methylator phenotype
CSCs	cancer stem cells
DIPG	diffuse intrinsic pontine glioma
ecDNA	extrachromosomal DNA
EMT	epithelial-to-mesenchymal transition
EPN	ependymoma
ESCs	embryonic stem cells
GBM	glioblastoma
GSCs	glioblastoma stem cells
ITH	intra-tumoral heterogeneity
MEC	mesenchymal ependymoma cells
MET	mesenchymal epithelial transition
NSCs	neural stem cells
NSs	neurospheres
OPCs	oligodendrocyte precursor cells
oRGCs	outer radial glia cells
oSVZ	outer subventricular zone
PBTs	pediatric brain tumors
PF	posterior fossa
PF-NSC-like	posterior fossa-Neural-Stem-Cell-like
pHGG	pediatric high-grade gliomas
RGCs	radial glia cells
RTK	receptor tyrosine kinase
RT-PCR	reverse transcriptase polymerase chain reaction
scRNA-seq	single-cell RNA sequencing
ST	supratentorial
ST_EPN	supratentorial ependymoma
TCA	tricarboxylic acid cycle
TECs	transportive ependymoma cells
TF	transcription factor
TI	trajectory inference
TME	tumor microenvironment
UEC-1	undifferentiated ependymoma cells-1
vRGCs	ventricular radial glia cells
VZ	ventricular zone