摘要
目的:构建小鼠HMGN2干扰质粒psilence-cmv-4.1-HMGN2,以进一步明确HMGN2的生物学作用。方法:将HMGN2-shRNA片段退火后与小鼠psilence-cmv-4.1链接,饲养孕小鼠,尾静脉注射法导入shRNA表达质粒,提取8.5d胚胎RNA,用RT-PCR检测胎HMGN2的表达量进行鉴定。结果:测序结果显示psilence-cmv-4.1-HMGN2干扰质粒构建成功,RT-PCR结果显示HMGN2在8.5d胎儿表达较高广泛表达,且Psilencer-cmv-4.1-HMGN2尾静脉注射后有明显的抑制效果。结论:成功构建对8.5d胎鼠HMGN2基因具有显著干扰效率的psilencer-4.1-HMGN2干扰质粒,为进一步研究HMGN2基因的功能打下了基础。
Objective: To construct highly efficient mouse shRNA psilencer-c mv-4. 1-HMGN2, and the transcription mechanism of HMGN2. Methods. shRNA psileneer-c mv-4. 1-HMGN2 was constructed and was transmitted into the pregnant ICR mice with tail venous injection. At 8. 5 days in gestation, embryo RNA was extracted and identified the expression of HMGN2 by RT-PCIL Resuits:The shRNA psilenee-emv-4. 1-HMGN2 was constructed successfully and the expression of HMGN2 was higher at 8. 5 days in gestation embryo, and significantly downregulated by shRNA psilencer-c mv-4. 1-HMGN2. Conclusion. The psilenee-c mv-4. 1- HMGN2 was constructed successfully and the interference efficiency was 70%.
出处
《四川生理科学杂志》
2010年第1期5-8,共4页
Sichuan Journal of Physiological Sciences
基金
国家自然科学基金(30671963)
CMB基金(98-683)