人子宫内膜癌细胞系的建立及其生物学特性研究

Establishment and biological characteristics of a new human endometrial carcinoma

目的建立人子宫内膜癌细胞系,为子宫内膜癌体外实验提供研究材料。方法将人子宫内膜癌手术标本移植于BALB/C(nu/nu)裸鼠皮下,成瘤后对移植瘤原代培养,进行传代。结果建立子宫内膜癌细胞系,取名EAC,成功传代至51代.该细胞系生长快,稳定传代,形态学特征符合腺上皮恶性肿瘤细胞特征。染色体检查为超二倍体。雌孕激素受体检查阴性。P53、MDM2表达阴性。致瘤率100%,移植瘤病理学特征与原细胞系相似。结论成功建立人子宫内膜癌细胞系,为开展人类子宫内膜癌基础和临床研究提供了理想实用的模型。

AIM: To establish a new human endometial carcinoma cell line for basic and clinical study. METHODS: The minced tumor tissues were inoculated subcutaneously into the back of nude mice. After forming solid tumor, the mice were killed and the transplant was taken out for primery culture. RESULTS: The established cell line was maintained by serial passages, named EAC. EAC cell line grew rapidly,steadily, and it had similar microscopic morphology to adenocarcinoma cell. Chromosome analysis reveal EAC chromosome counts ranging in hyperdiploid. The expression of ER, PR, P53, MDM2 were negative by SP immunohistochemistry. Tumorigenicity of EAC in nude mice was 100%. CONCLUSION: A new human endometrial carcinoma, EAC, is established successfully, which is helpful for the basic and clinical study of endometrial carcinoma.