3α-HSD	3α-Hydroxysteroid dehydrogenase
20α-HSD	20α-Hydroxysteroid dehydrogenase
3α-THP	Allopregnanolone
5α-DHP	Dihydroprogesterone
5αR	5α-Reductase
AKR1C1	Aldo-keto reductase family 1 member C1 (also 20α(3α)-HSD)
AKR1C2	Aldo-keto reductase family 1 member C2 (also 3α-HSD type 3)
AKR1C3	Aldo-keto reductase family 1 member C3 (also 3α(17β)-HSD type 2)
AKR1C4	Aldo-keto reductase family 1 member C4 (also 3α-HSD type 1)
AraC	cytosine β-D-arabinofuranoside
c-Src	SRC Proto-Oncogene, Non-Receptor Tyrosine Kinase
ERK	Mitogen-activated protein kinase
FAK	Focal adhesion kinase
GABA	γ-aminobutyric acid
GABAAR	γ-aminobutyric acid type A receptor
GABABR	γ-aminobutyric acid type B receptor
GB	Glioblastoma
HA	Human astrocytes
mPRα	Membrane progesterone receptor α (PAQR-7)
mPRβ	Membrane progesterone receptor β (PAQR-8)
mPRγ	Membrane progesterone receptor γ (PAQR-5)
mPRδ	Membrane progesterone receptor δ (PAQR-6)
mPRε	Membrane progesterone receptor ε (PAQR-9)
P4	Progesterone
PR	Progesterone receptor
sAKR1C1-3	GB cells with silenced expression of the Aldo-keto reductase family 1 member C1-3
V	Vehicle, ethanol 0.1% in the medium