宫颈癌单克隆抗体AU14-1介导效应细胞对靶细胞的细胞毒

目的：研究单克隆抗体AU14-1介导的细胞毒作用对小鼠宫颈癌（U14）细胞的杀伤效果。 方法： 以小鼠淋巴因子激活的杀伤细胞（LAK）、脾淋巴细胞及巨噬细胞为效应细胞，应用MTT比色法测试在单克隆抗体AU14-1介导下对小鼠宫颈癌（U14）细胞的体外细胞毒作用。 结果： 3种效应细胞对于经单克隆抗体AU14-1处理的肿瘤细胞的杀伤率显著高于未经AU14-1处理的肿瘤细胞（P＜0.01）；以LAK的ADCC作用最强，巨噬细胞次之，脾淋巴细胞最弱（P＜0.01）。 结论： 单克隆抗体AU14-1能通过抗体依赖细胞介导细胞毒（ADCC）发挥淋巴样细胞、巨噬细胞及LAK细胞对靶肿瘤细胞的杀伤作用；提示特异性宫颈癌单克隆抗体AU14-1介导的ADCC在治疗宫颈癌中可能是一种有潜在价值的方法。

Cytotoxicity of effector cells targeting tumor cells mediated by monoclonal antibody AU14-1 against experimental uterine cervical carcinoma

AIM: To investigate the effect of monoclonal antibody(McAb) AU_(14-1) mediated cytotoxicity against cervical cancer U_(14) cell in vitro.METHODS: MTT colorimetric assay was applied to study the McAb AU_(14-1) mediated cytotoxicity of effector cells including splenocytes,peritoneal macrophages and LAK to U_(14) cells.RESULTS: The cytotoxicity mediated by each effector cells to the U_(14) cells treated with McAb AU_(14-1) was significantly higher than those not treated with it(P<0.01) and the ADCC activity of the LAK was the strongest among them,the macrophages was the second and the splenocytes the weakest(P<0.01).CONCLUSION: The study indicates that McAb AU_(14-1) against cervical carcinoma may mediate the ADCC of the splenocytes,the peritoneal macrophages and the LAK to U_(14) cells,its ability to direct ADCC might suggestes this antibody may be a promising candidate for potential cervical cancer therapy.