Transgene expression of enhanced green fluorescent protein in cloned rabbits generated from in vitro-transfected adult fibroblasts
Transgene expression of enhanced green fluorescent protein in cloned rabbits generated from in vitro-transfected adult fibroblasts
复制标题
体外转染的成体成纤维细胞产生的克隆兔中增强绿色荧光蛋白的转基因表达
DOI：
10.1007/s11248-008-9227-y
复制
发表时间：
2009-04-01
影响因子：
3
通讯作者：
Chen, Xuejin
中科院分区：
文献类型：
--
作者：
Li, Shangang;Guo, Yi;Chen, Xuejin
Live rabbits have previously been generated through nuclear transfer using adult cells as nuclear donors. We demonstrated in this study that transfected adult rabbit fibroblasts are also capable of supporting full-term development. The fibroblasts were transfected with a pEGFP-C1 plasmid using lipofectamine™2000, and the transgenic cells were derived from conditioned medium. The transgenic fibroblasts were cultured until confluent and then serum-starved prior to be used as nuclear donors. After nuclear transfer and activation, 22% (12/55) of the transgenic cloned embryos developed to the blastocyst stage. A total of 114 embryos at the 4- to 8-cell stage were transferred to the oviducts of 8 pseudo-pregnant mothers; 5 of these animals became pregnant, and 3 of the 5 mother rabbits carried the pregnancy to term. Caesarean section was performed on the 3 pregnant mothers, yielding 4 kits, one of which has survived for more than 9 months. Green fluorescence could be detected in the toenails of the living cloned rabbit and the offspring from the living cloned rabbit under ultraviolet light. DNA analyses confirmed that all 4 cloned rabbits were genetically identical to the transgenic donor cells, and that they all carried the EGFP gene. The present study demonstrated that transgenic rabbits can be generated through nuclear transfer. These results may facilitate future developments in the genetic engineering of rabbits.
