8株人黑色素瘤细胞系的建立及其生物学特性研究  

Characteristics of eight established human melanoma cell lines

作　　者：祝和成[1] 吴尚辉[1] 黄柏英[1] 顾焕华[1] 罗学滨[1] 彭聪[1] 祝斌[1] 

机构地区：[1]中南大学细胞生物研究室,湖北长沙410078

出　　处：《中国病理生理杂志》2005年第2期276-280,共5页Chinese Journal of Pathophysiology

基　　金：国家留学基金资助项目 (No.2 0FD0 2 0 0 2 )

摘　　要：目的 :从人黑色素瘤组织建立一系列黑色素瘤细胞系 ,命名为黑色素瘤细胞系 1- 8号 (HME1- 8) ,并研究鉴定其体外细胞生物学与免疫学特性。方法 :取黑色素瘤组织进行组织块培养法 ,待长满 90 %汇合面后消化传代培养 ,并进行形态学、生长动力学、免疫学及致瘤性等生物学特性研究。结果 :该系列黑色素瘤细胞系已在体外培养生存 1- 2年 ,传 6 0 - 10 0余代 ,其生物学特性显示 :①这些细胞系体外生长的倍增时间为 34. 2 - 5 9. 5h ;②软琼脂集落形成率平均值在 8. 6 % - 2 6 . 2 %之间 ;③接种至裸鼠后具有较高的致瘤性 ;④染色体核型分析为非整倍体 ,众数为 6 4 - 117条 ;⑤透射电镜下可观察到细胞含丰富的核糖体及黑色素颗粒 ;⑥免疫组化分析显示细胞浆内含大量阳性棕色黑色素颗粒 ;⑦肿瘤抗原检测显示 8株黑色素瘤细胞系的Melan -A抗原阳性率为 75 % ,MAGE - 1阳性率为5 0 % ,MAGE - 2阳性率为 37 .5 % ,MAGE - 3阳性率为 6 2 .5 %。结论 :8株黑色素瘤细胞系经体外长期培养后已永生化 ,形成了连续传代细胞系 ,具有明显的黑色素瘤细胞恶性表型特征。AIM: Eight melanoma cell lines were establi sh ed from human melanoma specimen and designated as HME 1-HME 8, and their charact eristics of cell biology and immunology in vitro were studied. METHODS: The tissues from biopsies of human melanoma were cultur ed in RPMI 1640 media. After growing to 90% confluence, the cells were detached for subculture and then their characteristics, including morphology, growth kine tic, tumor antigen and tumorigencity in nude mice were studied. RESULTS: These cell lines have been passaged more than 100 times within 2 years. Their characteristics demonstrated: ① The population doubling time calculated in the log phase of growth were 34.2-59.5 h. ② The cloning ef ficiency in soft agar averaged 8.6%-26.2%. ③ The melanoma cells transplan t ed in nude mice were high tumorigencity. ④ Karyo-type analysis showed that aneu ploidy with the modal chromosomal number 64-117. ⑤ Rich ribosomes and melanoid grains in the cytoplasm were observed under electronic microscope. ⑥ Immunohist ochemistry analysis showed that there were a lot of brown grains in the cytoplas m. ⑦ Detection of tumor-antigen demonstrated that melan-A antigen was 75.0%, M AGE-1 was 50.0%, MAGE-2 was 37.5%, MAGE-3 was 62.5%, respectively, for eight melanoma cell lines. CONCLUSION: The melanoma cells have immortalized after being cul tured in vitro and has specific characteristics of malignant melanoma.

关 键 词：黑色素瘤 细胞培养 细胞系 抗原 肿瘤 人类 

分 类 号：R363[医药卫生—病理学]