MTT Assay

XD Xi Dai
RL Run-Ze Li
ZJ Ze-Bo Jiang
CW Chun-Li Wei
LL Lian-Xiang Luo
XY Xiao-Jun Yao
GL Guo-Ping Li
EL Elaine L.-H. Leung
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A549 cells and PC-9 cells were seeded in 96-well plates and cultured overnight of adhesion, then treated with different concentrations of honokiol (0, 20, 40, 60, and 80 μM) for 24, 48, and 72 h, respectively; 10 μl of MTT solution (5 mg/ml) was added in each well and incubated for another 4 h. Then 100 μl of DMSO was added in each well and incubated for 4 h to dissolve the formazan crystals. Absorbance of plates was measured at 570 nm with Tecan microplate reader (Morrisville, NC, United States).

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