Reversal effect of oxymatrine and tetrandrine on multidrug resistance in HNE-1(200) cell line
AIM:To study the reversal effects of natural substances oxymatrine and tetrandrine on multidrug resistance in human nasopharyngeal carcinoma multidrug resistance HNE-1 (200) cell line. METHODS: Human nasopharyngeal carcinoma multi-drug resistance HNE-1 (200) cell line was used as the subject. MTT reduction assay was used to investigate the drug interaction of oxymatrine,tetrandrine,cisplatin(DDP),5-Fluorouracil(5-Fu),vincristine(VCR) and adriamycin ( ADM) on HNE-1 (200) cell line. IC50 and RI were detected. RESULTS: After non-toxic dose of tetrandrine was interacted with DDP,5-Fu,VCR and ADM,the cell inhibition rate of the four drugs increased. The resistance index (RI) of tetandrine with DDP,5-Fu,VCR and ADM was 2. 25,2. 1,3. 19 and 2. 27 respectively. The RI of oxymatrine with DDP,5-Fu,VCR and ADM was 1. 59,1. 26,2.28 and 1. 26 respectively. CONCLUSION: Oxymatrine and tetrandrine can reverse the multidrug resistance of HNE-1 ( 200) cell line to DDP,5-Fu,VCR and ADM.