Effect of SEG-shRNA complex on rabies virus infected mice
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摘要: 目的 探讨SEG-shRNA复合物对狂犬病病毒(rabies virus,RV)感染小鼠的影响。 方法 选取BALB/c小鼠40只,随机分为对照组、SEG组、shRNA组和SEG-shRNA组,每组10只,所有小鼠均肌肉注射RV PB3街毒株,对照组、SEG组、shRNA组和SEG-shRNA组小鼠攻毒后尾静脉分别注射生理盐水、SEG、shRNA和SEG-shRNA,连续3 d,采用qRT-PCR和Western blotting检测小鼠脑组织RV mRNA和RV N蛋白表达,检测小鼠血清IFN-α水平。 结果 SEG-shRNA组小鼠发病时间和死亡时间分别为(170.54±11.21)h和(389.28±43.22)h,较对照组、SEG组和shRNA组明显延后(均P<0.05);SEG-shRNA组小鼠脑组织RV mRNA和RV N蛋白相对表达量分别为1.002±0.321和0.999±0.232,明显低于对照组、SEG组和shRNA组(均P<0.05);对照组、SEG组、shRNA组和SEG-shRNA组试验前后血清IFN-α吸光度值水平比较差异无统计学意义(P>0.05)。 结论 SEG-shRNA复合物在RV小鼠中有一定的治疗作用,对RV有抑制作用。
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关键词:
- 狂犬病病毒 /
- SEG-shRNA复合物 /
- 小鼠
Abstract: Objective To investigate the effect of SEG-shRNA complex on rabies virus (RV) infected mice. Methods Forty BALB/c mice intramuscularly injected with RV PB3 street strain were randomly divided into control group, SEG group, shRNA group and SEG-shRNA group, 10 mice in each group. The control, SEG, shRNA and SEG-shRNA group were injected with saline, SEG, shRNA and SEG-shRNA respectively in tail vein after challenge for 3 days. The expression of RV mRNA and RV N protein in brain tissue were detected by qRT-PCR and Western blotting. The level of IFN- in serum was measured. Results The onset time and death time of mice in SEG-shRNA group were (170.54±11.21) h and (389.28±43.22) h respectively, which were significantly delayed compared with those in control, SEG and shRNA group (all P<0.05). The relative expression of RV mRNA and RV N protein in SEG-shRNA group were 1.002±0.321 and 0.999±0.232, which were significantly lower than those in control, SEG and shRNA group (all P<0.05). There was no significant difference in serum IFN- level in all groups (P>0.05). Conclusion SEG-shRNA complex has a certain therapeutic effect on RV infected mice and inhibits RV.-
Key words:
- Rabies virus /
- SEG-shRNA complex /
- Mice
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