stably

Then a high-efficiency genetic transformation system was established,by which two transgenic Roselle cell lines that stably express the activity of neomycin phosphotransferaseⅡwere obtained.

这一转化体系获得了2个稳定表达新霉素磷酸转移酶活性的玫瑰茄转化细胞系。

In order to study the role of bone sialoprotein(BSP) in the metastasis of breast cancer cells to bones,a breast cancer cell line stably expressing BSP should be established.

为进一步研究骨唾液蛋白(BSP)在乳腺癌细胞骨转移的整个过程中的作,首先要建立稳定高效表达BSP的乳腺癌细胞系。