摘要
目的 :探索32 磷玻璃微球组织内照射及联合加热治疗对小鼠移植瘤S180肿瘤细胞凋亡的影响。方法 :分别给予小鼠移植瘤S180动物模型32 磷玻璃微球组织内照射、加热治疗及联合治疗 ,第 15天取标本检测细胞凋亡情况。结果 :空白对照组、加热组、内照射组及联合治疗组细胞凋亡指数 (AI)分别为 0 39、0 5 3、0 5 9和 0 91;加热组、内照射组及联合治疗组AI值明显较空白对照组高 (P分别为 <0 0 5、<0 0 5、<0 0 1) ,联合治疗组AI值较其它治疗组高(P <0 0 5 )。结论 :32 磷玻璃微球组织内照射及加热治疗均可促进小鼠移植瘤S180的细胞凋亡 ,加热可使内照射治疗的凋亡反应增强。
Objective: The aim of this study was to observe the changes of tumor cell apoptosis after interstitial irradiation combination with the hyperthermia treatment.Methods: Twenty mice with solid tumor S180 were divided into four groups, including a control group which was given normal saline, and three experimental groups which were respectively applied with a hyperthermia treatment (bath water), interstitial irradiation with +{32}P glass microspheres, and the combined treatment of hyperthermia and interstitial irradiation. The terminal deoxynucleotidyl transferase mediated dUTP nick end labeling (TUNEL) method was used to determine the final apoptotic cells.Results: The mean values of apoptotic indexes of these four groups were respectively 0 39, 0 53, 0 59 and 0 91. The apoptotic indexes of these experimental groups were significantly higher than that of the control group (P<0 05). The apoptotic index of the combined treatment group was significantly higher than those of the hyperthermia group and the interstitial irradiation group (P<0 05).Conclusion: Both the interstitial irradiated with +{32}P glass microspheres and hyperthermia (bath water) can induce the apoptosis of mouse solid tumor S180. It seems that there is a synergistic induction of apoptosis between interstitial irradiation and hyperthermia.
出处
《华西口腔医学杂志》
CAS
CSCD
北大核心
2001年第2期118-119,共2页
West China Journal of Stomatology
