Fig. 4

Cell viability by MTT assay as a criterion for drug dose determination. In all groups, the viability rate of the cells on the 7th day was higher than that of their counterparts on the 3rd and 5th days. Also, the cell viability of both 25 and 50 μM of TQ-treated cultures was the same as the matched controls. In all days, the cell viability in 2D condition was higher than all the 3D conditions. *Significantly different from the controls on day 3 (P < 0.01), ^#significantly different from the controls on day 5 (P < 0.001), ^αsignificantly different from the controls on day 7 (P < 0.001)