Walther Michael, Thompson Fiona M, Dunachie Susanna, Keating Sheila, Todryk Stephen, Berthoud Tamara, Andrews Laura, Andersen Rikke F, Moore Anne, Gilbert Sarah C, Poulton Ian, Dubovsky Filip, Tierney Eveline, Correa Simon, Huntcooke Angela, Butcher Geoffrey, Williams Jack, Sinden Robert E, Hill Adrian V S
Centre for Clinical Vaccinology & Tropical Medicine, Nuffield Department of Clinical Medicine, Oxford University, United Kingdom.
Infect Immun. 2006 May;74(5):2706-16. doi: 10.1128/IAI.74.5.2706-2716.2006.
Heterologous prime-boost immunization with DNA and various recombinant poxviruses encoding malaria antigens is capable of inducing strong cell-mediated immune responses and partial protection in human sporozoite challenges. Here we report a series of trials assessing recombinant fowlpox virus and modified vaccinia virus Ankara encoding the Plasmodium falciparum circumsporozoite protein in various prime-boost combinations, doses, and application routes. For the first time, these vaccines were administered intramuscularly and at doses of up to 5 x 10(8) PFU. Vaccines containing this antigen proved safe and induced modest immune responses but showed no evidence of efficacy in a sporozoite challenge.
用编码疟疾抗原的DNA和各种重组痘病毒进行异源初免-加强免疫能够在人体子孢子攻击试验中诱导强烈的细胞介导免疫反应并提供部分保护。在此,我们报告了一系列试验,评估了重组鸡痘病毒和安卡拉痘病毒,它们编码恶性疟原虫环子孢子蛋白,采用了不同的初免-加强组合、剂量和接种途径。这些疫苗首次通过肌肉注射给药,剂量高达5×10⁸ PFU。含有该抗原的疫苗被证明是安全的,能诱导适度的免疫反应,但在子孢子攻击试验中未显示出有效性证据。