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Therapeutic vaccination of rabbits with a ubiquitin-fused papillomavirus E1, E2, E6 and E7 DNA vaccine

机译:用泛素融合的乳头瘤病毒E1,E2,E6和E7 DNA疫苗对兔进行治疗性疫苗接种

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摘要

Previously, we showed that intracutaneous vaccination of rabbits with DNA vectors encoding ubiquitin-fused versions of the cottontail rabbit papillomavirus (CRPV) early proteins E1, E2, E6 and E7 protected against subsequent challenge with CRPV. Here, we tested the immunotherapeutic activity of a vaccine composed of the four CRPV DNA vectors (designated UbE1267) in rabbits. The results show that the UbE1267 DNA vaccine, relative to empty vector DNA, virtually eliminated papilloma growth in rabbits with subclinical infection and greatly reduced papilloma volumes in rabbits bearing papillomas at the time of vaccination. These results in a physiologically relevant animal model of high-risk human papillomavirus (HPV) infection indicate that DNA vaccines targeting the early papillomavirus proteins may have a role in the treatment of HPV-associated lesions in humans.
机译:以前,我们表明用编码泛素融合型棉尾兔乳头瘤病毒(CRPV)早期蛋白E1,E2,E6和E7的DNA载体对兔进行皮内疫苗接种可防止随后的CRPV攻击。在这里,我们测试了由四种CRPV DNA载体(称为UbE1267)组成的疫苗在兔中的免疫治疗活性。结果表明,相对于空载体DNA而言,UbE1267 DNA疫苗实际上消除了亚临床感染兔子的乳头瘤生长,并大大减少了接种疫苗后带有乳头瘤的兔子的乳头瘤体积。在高危人类乳头瘤病毒(HPV)感染的生理相关动物模型中的这些结果表明,靶向早期乳头瘤病毒蛋白的DNA疫苗可能在人类HPV相关损伤的治疗中起作用。

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