【摘要】 本工作主要涉及青蒿琥酯对体外培养人宫颈癌HeLa、Siha细胞株的放射增敏作用。实验选择人宫颈癌细胞HeLa、Siha作为实验细胞。利用四氮唑盐比色试验(MTT)确定细胞辐射损伤实验最佳药物浓度;常规染色体畸变法、胞质分裂阻滞微核法(CB法)分别研究青蒿琥酯对辐射诱发人宫颈癌细胞染色体畸变、微核的影响。确定了青蒿琥酯的实验药物浓度:HeLa为2.0μg/mL、Siha为4.0μg/mL。结果表明,HeLa细胞经青蒿琥酯作用并在相同剂量辐照后,染色体畸变率、微核细胞率及微核率较单纯照射增加明显;Siha细胞在相同辐照剂量下加药处理组与单纯照射组比较,染色体畸变率、微核细胞率及微核率均无统计学差异(p>0.05)。更多还原

【Abstract】 To investigate the effect of artesunate on radio-sensitivity of human cervical cancer cells in vitro,The human cervical cancer cells HeLa and Siha were used as the experimental cells.MTT assay was used to determine the most appropriate drug concentration in the subsequent experiment,and the effect of human cervical cancer cells treated with artesunate and irradiation of 60Co γ-rays was studied by using conventional chromosomal aberration analysis and cytokinesis block method(CB method).The results show that when the concentration of artesunate in this experiment was 2.0 μmol/mL for HeLa cell and 4.0 μmol/mL for Siha cell respectively,the chromosome aberra-tion,micronuclei cell and micronuclei rates of HeLa cells treated with artesunate were more serious than that of the only irradiation,but there is almost no change with Siha cells.更多还原