Fig. 2

Quercetin causes arrest of cell cycle in retinoblastoma (RB) Y79 cells in vitro. a distribution of cell cycle of RB Y79 cells after 24 h of treatment with different concentrations of Quercetin (0-100 μM), all data are represented as the means ± SD (n = 3). *P < 0.05, **P < 0.01 against control. b and c Y79 cells were exposed to various concentration of Quercetin (0-100 μM) and the obtained cell lysates after 24 h were subjected to western blot analysis employing specific antibodies against cyclin-dependent kinase (CDK)2, CDK6, p27, cyclin D3 and p21, GAPDH was used as a loading control. The results are represented as means ± SD (n = 3). *P < 0.05, **P < 0.01 against control. @P < 0.05 against Quercetin (50 μM) group