两种黑色素瘤b16 细胞肺转移小鼠模型的构建和比较 - 中华临床医师杂志.pdfVIP

·3588 · 中华临床医师杂志( 电子版)2015 年10 月第9 卷第19 期 Chin J Clinicians(Electronic Edition),October 1,2015,Vol.9,No.19 ·基础论著· 两种黑色素瘤B16 细胞肺转移小鼠模型的 构建和比较 李佳悦 朱欣凯 王萍 钮利喜 【摘要】 目的 采用尾静脉接种法建立C57BL/6小鼠和KM小鼠两种黑色素瘤B16细胞肺转移 动物模型，观察小鼠肺部成瘤过程，并对两种模型进行比较。制作肿瘤切片，通过HE染色分析两种 肿瘤模型的组织病理学特征。方法 培养B16黑色素瘤细胞至对数生长期时收集细胞，用生理盐水 调整浓度为5 ×106/ml备用。将备好的B16细胞通过尾静脉接种小鼠，每只注射0.2 ml 。接种后，两种 小鼠每隔一定时间随机各取一只小鼠处死，解剖取肺，观察成瘤情况，计数肺表面的瘤结节数，测 量瘤结节大小。以出现瘤结节开始计时，记录小鼠荷瘤时间。形成稳定的肿瘤模型后，制作肿瘤组 织切片，HE染色进行病理学观察分析。结果 B16细胞尾静脉接种C57BL/6小鼠和KM小鼠，均能形 成肺转移模型，但两种小鼠成瘤情况差异较大。KM小鼠的荷瘤时间比C57BL/6小鼠荷瘤时间长。HE 染色结果显示黑色素瘤B16细胞在两种小鼠的肺组织中均形成巢团状的转移瘤，且两种模型肺转移 瘤均多分布在支气管周围。结论 通过对C57BL/6小鼠和KM小鼠两种黑色素瘤B16细胞肺转移小鼠 模型的成瘤特点的分析比较，可以看出KM小鼠更适合用于研究新的肺肿瘤治疗药物，为研究黑色素 瘤的发生发展提供依据。 【关键词】 B16 细胞； 肺转移小鼠模型； 尾静脉 Establishment and comparison of two kinds of lung metastasis mouse models Li Jiayue, Zhu Xinkai, Wang Ping, Niu Lixi. Institute of Biotechnology, Shanxi University, Taiyuan 030006, China Corresponding author: Niu Lixi, Email: nlx@sxu.edu.cn 【Abstract 】 Objective To observe the tumorigenic process, two pulmonary metastatic models of melanoma B16 cells were established and compared using C57BL/6 and KM mice, respectively. Methods Tail intravenous injection of 1×106 melanoma B16 cells/mouse resulted in macroscopic disease by 4-9 days and a randomly selected mouse was sacrificed in a certain interval to survey the morphologic characteristics of melanoma. The number of tumor nodules in the lung surface was counted and the size of tumor nodules was measured. The tumor-burdened time of mice was recorded and the tumor sections were made for pathological observation and analysis. Results HE staining showed that each mouse in the B16 cell injection groups had nest-shape metastatic foci distributed around the bronchi in the lung, but the tumor-burdened time w