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寻求HCV基因免疫的最佳动物实验方法,探讨不同处理因素对基因重组体pCD-HCV1诱发小鼠产生抗体的影响。方法:用分子生物学技术构建丙型肝炎病毒基因重组体pCD-HCV1,采用不同免疫次数、途径、剂量和不同处理方法免疫Balb/c小鼠。结果:重组体pCD-HCV1经肌肉1、2、3和4次免疫小鼠后(100μg/只,n=12),抗体水平分别为0183±0006、0428±005、0707±008和0773±007(A值,下同)。其中4次免疫小鼠的抗体水平最高;pCD-HCV经灌胃、腹腔注射、皮下注射和肌肉注射(100μg)不同途径分别免疫小鼠(n=6)抗体水平依次为0138±0005、0178±007、0233±008和0691±005,SNK统计显示,肌肉注射途径与其他3种注射途径相比,抗体水平有显著差异(P<0001);以不同剂量(10、50和100μg)分别免疫小鼠(n=8),抗体水平依次为011±009、033±004和070±007;各组间差异有显著性意义(P<001);用普鲁卡因100μg(0.4mg)肌肉注射小鼠24h后,再肌肉、皮下注射pCD-HC?
The aim of this study was to investigate the effects of different treatment factors on antibody production in mice induced by pCD-HCV1. Methods: The recombinant plasmid pCD-HCV1 of hepatitis C virus was constructed by molecular biology techniques. Balb / c mice were immunized with different immunization times, route, dosage and different treatments. Results: After the mice were immunized with recombinant pCD-HCV1 for 1, 2, 3 and 4 times (100μg / mouse, n = 12), their antibody levels were 0183 ± 0006,0428 ± 005 , 0707 ± 008 and 0773 ± 007 (A value, the same below). The antibody level of the four immunized mice was the highest. The antibody levels of pCD-HCV immunized with different routes of gavage, intraperitoneal injection, subcutaneous injection and intramuscular injection (100μg) were 0138 ± 0 005, 0178 ± 007, 0233 ± 008 and 0691 ± 005, SNK statistics showed that the intramuscular injection route compared with the other three injection routes, antibody levels were significantly different (P < 0 001). The mice were immunized with different dosages (10, 50 and 100 μg) respectively (n = 8). The antibody levels were 011 ± 009,033 ± 004 and 070 ± 0 07; There was significant difference among the groups (P <001). After intramuscular injection of procaine 100 μg (0.4 mg) for 24 h, pCD-HC was intramuscularly injected subcutaneously