Table I.

Primers used in the present study.

Gene	Forward primer (5′→3′)	Reverse primer (5′→3′)
CD133	acactgctggtgtgctgac	cccaaggaccacttcacagt
SOX2	cacaactcggagatcagcaa	ctccgggaagcgtgtactta
Nestin	aggctgagaactctcgcttg	attaggcaagggggaagaga
VEGF	cacgaacgagtccctagagc	atggtgatgcggttttcttc
PI3K	attacgctagttacactgca	tggacctggccatcgactga
GAPDH	accacagtccatgccatcac	tccaccaccctgttgctgta

SOX2, (sex determining region Y)-box 2 (SOX2); VEGF, vascular endothelial growth factor; PI3K, phosphoinositide-3-kinase.