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作 者:曹华[1] 许琨[1] 王鹏举[3] 姜国忠[2] 高冬玲[2] 王继伟[3] 曹风雨[3] 王尧河[3]
机构地区:[1]郑州大学第一附属医院耳鼻咽喉头颈外科,450052 [2]郑州大学第一附属医院病理科,450052 [3]郑州大学中英分子肿瘤学研究中心
出 处:《中华耳鼻咽喉头颈外科杂志》2012年第8期672-676,共5页Chinese Journal of Otorhinolaryngology Head and Neck Surgery
基 金:河南省创新杰出人才基金(124200510018);河南省科技厅国际合作项目(104300510008)
摘 要:目的探讨新型溶肿瘤腺病毒Ad.TD-RFP对人鼻咽癌细胞C666.1的体内外治疗作用。方法用细胞毒性检测法(MTS法)测定溶肿瘤腺病毒Ad-TD-RFP和对照病毒d11520对鼻咽癌细胞C666.1的杀伤作用;半数组织培养感染剂量(TCID50)法检On,0Ad-TD-RFP和d/1520不同时间点(24h、48h、72h、96h)在鼻咽癌细胞C666-1中的复制能力;人鼻咽癌细胞C666-1BALB/c裸鼠皮下成瘤,检测Ad-TD-RFP和d/1520对肿瘤大小的影响。结果新型溶肿瘤腺病毒Ad-TD-RFP和对照病毒d/1520对鼻咽癌细胞C666-1的50%最大效应浓度(EC50。)分别为(107.6±3.2)pt/细胞和(174.1±4.0)pt/细胞,差异有统计学意义(t:22.6,P〈0.001)。在鼻咽癌细胞C666-1中在不同时间点(24h、48h、72h、96h)Ad-TD-RFP是d/1520复制能力的3-14倍,差异有统计学意义(t值分别为33.6、23.4、20.8和17.3,P值均〈0.001)。磷酸盐缓冲液组、d11520治疗组和Ad.TD.RFP治疗组在治疗67d后,移植瘤平均体积分别约为(1765.5-4-713.9)mm。、(1036.9±623.8)mm。、(420.8±238.7)mm3,三组相比差异有统计学意义(F=12.0,P〈0.05)。结论新一代溶肿瘤腺病毒Ad-TD-RFP在体内外对鼻咽癌细胞C666-1有很好的治疗效果,为将来鼻咽癌病毒基因治疗提供一定的实验基础。Objective To evaluat the antitumor efficacy of Ad-TD-RFP for human nasopharyngeal carcinoma cells ( C666-1 ) in vitro and in vivo. Methods The oncolytic effects of Ad-TD-RFP and control virus dl11520 on C666-1 cells were determined by eytotoxicity assay (MTS assay). Viral replication of Ad- TD-RFP and dl11520 was detected at different time points (24 h, 48 h, 72 h and 96 h) by tissue culture infective dose (TCIDs0) in C666-1 cells implanted subcutaneously into the flank in each of BALB/c nude mice. The xenografts were injected intratumorally with Ad-TD-RFP or d/1520 to investigate their effects on tumor growth. Results The concentration for 50% of maximal effect ( ECso ) values of Ad-TD-RFP and dl1520 were (107.6 +3.2) pt/cell and (174. 1±4. 0) pt/eell, respectively (t =22. 6, P 〈0. 001 ). The Ad-TD-RFP replication was 3 - 14 folds more than d/1520 replication at four time points (24 h, 48 h, 72 h and 96 h) in C666-1 cells (t values were 33.6, 23.4, 20. 8 and 17.3, respectively, P 〈 0. 001 ). The average tumor volumes of PBS group, d/1520 group and Ad-TD-RFP group were ( 1765.5 ±713.9) mm3 , (1036. 9 ±623.8) mm3 , and (420. 8 ±238.7) mm3, respectively (F = 12. 0, P 〈0. 05) on day 67 after treatment. Conclusions The antitumour efficacy of the novel oneolytie adenovirus Ad-TD-RFP for human nasopharyngeal carcinoma C666-1 cells is superior to that of d/1520 in vitro and in vivo. The outcome of this study provides an experimental basis for the tratment of human nasopharyngeal carcinoma by viral gene therapy.
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