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异种抗原对荷S180肉瘤小鼠肿瘤内T淋巴细胞亚群的影响 被引量:1

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摘要 目的:评价对于小鼠为异种抗原的人A型红细胞膜免疫后序贯瘤内注射对荷S180肉瘤小鼠肿瘤生长的抑制作用及对肿瘤内T淋巴细胞亚群的影响。方法:24只荷S180肉瘤小鼠分为实验组、抗原对照组、免疫对照组及空白对照组。实验组荷瘤小鼠成瘤前应用A型人红细胞膜悬液腹腔免疫,成瘤后瘤内注射5mg/mLA型人红细胞膜,连续注射5d。抗原对照组,不预先免疫,瘤内注射A型人红细胞膜。免疫对照组,成瘤前预先免疫,瘤内注射生理盐水,连续注射5d。空白对照组,不预先免疫,瘤内注射生理盐水。注射第14天处死小鼠,测量瘤重,检测肿瘤内浸润Th、CTL、Treg细胞亚群数量及IL-2的含量。结果:实验组小鼠肿瘤平均重量低于免疫对照组及空白对照组(P<0.05,P<0.01)。实验组肿瘤内IL-2含量高于空白对照组(P<0.01)。实验组Th细胞的比例高于其他3组(P<0.01)。实验组CTL细胞比例高于免疫对照组及空白对照组(P<0.01),而Treg细胞的比例低于免疫对照组及空白对照组(P<0.01)。结论:人A型红细胞膜免疫后序贯瘤内注射可抑制荷S180肉瘤小鼠肿瘤生长,并使肿瘤内部Treg细胞数量降低,Th细胞及CTL细胞数量增多,IL-2含量增加。
出处 《实用医学杂志》 CAS 北大核心 2010年第2期208-210,共3页 The Journal of Practical Medicine
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