Objective:To study effect of radiotherapy on expressions of multidrug resistance(MDR) factors and intracellular ADM concentration in tongue squamous cell carcinoma cell line Tca 8113 and its MDR cell line Tca8113/CBDEA.

• 目的:探讨放疗对舌鳞癌Tca 8113细胞和耐药的Tca 8113/CBDEA细胞耐药性的影响。