Table 1. mRNA relative expression levels of PI3K, mTOR, and RhoA in each group (mean±SD).

Group	PI3K	mTOR	RhoA
Blank control	1.00±0.0	1.00±0.00	1.00±0.00
Negative control	0.98±0.05	1.01±0.11	0.99±0.13
PI3K-RNAi	0.29±0.07aa	0.54±0.13aa	0.59±0.06aa
mTOR-RNAi	1.02±0.07bb	0.30±0.08aabb	1.40±0.21aabb

^aaP<0.01 compared with the blank and negative control groups; ^bbP<0.01 compared with the PI3K-RNAi group (ANOVA and LSD t-test).