OBJECTIVE: To investigate the effect of several traditional Chinese medicine formula therapies on proliferation of nasopharyngeal carcinoma cell line HNE1. METHOD: The inhibition effect of medicine serums of Qi-Boosting Toxin-Resolving granule on proliferation of NPC cell line HNE1 in vitro was observed by MTT assay. RESULT: The rates of survival cells in Qi-Boosting Toxin-Resolving decoction group and Toxin-Resolving group were the lowest after 48 hours treatment, while Qi-Boosting group, yin-nourishing group, residual-component group medicine serums had the most obvious effects on the rates ...