HDC细胞与MESPU-13细胞形成嵌合鼠能力的比较研究  

COMPARATIVE STUDY ON THE CHIMERIC ABILITY OF EMBRYONIC STEM CELL LINES HDC AND MESPU-13

作　　者：何维[1] 吴鹤龄[1] 

机构地区：[1]北京大学生命科学学院

出　　处：《实验生物学报》1997年第4期363-373,共11页Acta Biologiae Experimentalis Sinica

基　　金："863"项目资助

摘　　要：ES细胞嵌合能力的强弱是人们利用ES细胞获得转基因小鼠时十分关心的问题。本文通过囊胚显微注射法将15个左右ES细胞注入C57 BL/6 J品系小鼠3.5天囊胚的囊胚腔中观察嵌合鼠毛色嵌合情况,统计嵌合鼠的出生率;以及用葡萄糖磷酸异构酶(GPI)电泳法检测ES细胞在嵌含鼠体内各种组织和器官的嵌合情况,对于HPRT缺陷(HDC)细胞和MES-PU-13细胞的嵌合能力我们作了较详细的研究,结果表明MESPU-13细胞嵌合能力较强,而HDC细胞嵌合能力较弱,并讨论分析了这种结果的原因。While producing transgenic mice by ES cell route, it is important to know whether ES cells used have a strong ability to produce chimeras or not. In this report, two methods were used for studying the chimeric ability of two ES cell lines (HDC and MESPU-13).One method was the blastocyst microinjection. that is. chimeras were produced by injecting 15 ES cells into the cavity of C 57 BL/6 J blastocysts. Another was GPI electrophore-sis for examinizing the chimerism of ES cells in internal tisssues and organs of chimeras. The results showed that the ability of producing chimeras of MESPU-13 cells was stronger than that of HDC cells. The reason was discussed in detail.

关 键 词：ES细胞 嵌合鼠 显微注射 

分 类 号：Q28[生物学—细胞生物学]