Table 3.

Expressions of cell cycle related proteins in A549 cells after different treatments (A_X/A_β-actin, n = 6)

Group	Control group	50 μmol/L ATRA	40 μmol/L Genistein	ATRA+ Genistein
CDK4	1.199 ± 0.256	1.062 ± 0.022c	0.868 ± 0.005b	0.731 ± 0.013a
Rb	0.321 ± 0.166	0.376 ± 0.034d	0.503 ± 0.026a	0.530 ± 0.054a
p-ERK1/2	5.430 ± 0.908	3.860 ± 0.876a	5.390 ± 0.249d	4.012 ± 0.765a

^aP < 0.01, vs. control group;

^bP < 0.05, vs. control group;

^cP < 0.01, vs. ATRA+ Genistein group;

^dP < 0.05, vs. ATRA+ Genistein group.