CNS	central nervous system
GBM	glioblastoma
LGG	low-grade glioma
IHC	immunohistochemical
GI	genomic instability
MIN, MSI	microsatellite instability
CIN	chromosomal instability
WHO	World Health Organization
IDH	isocitrate dehydrogenase
ODG	oligodendroglioma
HGG	high-grade glioma
CAG	circumscribed astrocytic glioma
PCA	pilocytic astrocytoma
HGAP	high-grade astrocytoma with piloid features
PXA	pleomorphic xanthoastrocytoma
MN1	MN1 proto-oncogene, transcriptional regulator
DNA	deoxyribonucleic acid
CTx	chemotherapy
RT	radiotherapy
SNI	single nucleotide instability
MMR	mismatch repair
AP-PCR	arbitrarily primed polymerase chain reaction
5-HTR	5-hydroxytryptamine (serotonine) receptor
AC	adenylyl cyclase
ATP	adenosine triphosphate
cAMP	3′-5′-cyclic adenosine monophosphate
PKA	protein kinase A
EPAC	exchange protein activated by cAMP
CREB	CRE-binding protein
CREM	cAMP-responsive modulator
ATF1	activating transcription factor 1
Rap1	Ras-associated protein 1
Rap2	Ras-associated protein 2
5-HTR4	5-hydroxytryptamine (serotonine) receptor 4
TSG	tumor-suppressor gene
PDE	phosphodiesterase
PDE4D	cAMP-specific 3′,5′-cyclic phosphodiesterase 4D
CA12 F	carbonic anhydrase 12 forward
CA 9 R	carbonic anhydrase 9 reverse
MDR2	multi-drug resistance 2
C-MYC1	cellular myelocytomatosis oncogene 1
MgCl2	magnesium chloride
dNTP	deoxyribonucleoside triphosphate
NTC	no-template control
FEPE	formalin-fixed paraffin-embedded
DAB	diaminobenzidine
IRS	immunoreactive score
SI	staining intensity
PP	percentage of positive cells
OR	odds ratio