The Cancer Immunobiology Center, University of Texas Southwestern Medical Center at Dallas, 6000 Harry Hines Blvd., Dallas, TX 75390-8576, USA.
Vaccine. 2010 Jul 19;28(32):5315-22. doi: 10.1016/j.vaccine.2010.05.045. Epub 2010 Jun 1.
Ricin toxin is a CDC level B biothreat. We have developed a ricin vaccine, RiVax, which is a recombinant mutant of ricin A chain. RiVax is safe, immunogenic and protective in mice when administered intramuscularly (IM). We have now attempted to increase the utility and immunogenicity of RiVax by administering it intradermally (ID) with or without alum. Without alum, Rivax administered by the ID and IM routes was equally immunogenic and protective. With alum, ID vaccinations were more immunogenic and protective against both systemic and mucosal challenge with ricin and superior in protecting animals from ricin-induced lung damage.
蓖麻毒素是疾病预防控制中心生物威胁级别 B 级的物质。我们研发了一种蓖麻疫苗,RiVax,它是蓖麻毒素 A 链的重组突变体。当肌肉内(IM)给药时,RiVax 在小鼠中是安全的、具有免疫原性的并且有保护作用。现在,我们试图通过皮内(ID)途径给予 RiVax 或与明矾联合应用来提高其功效和免疫原性。不使用明矾时,ID 和 IM 途径给予 RiVax 具有同等的免疫原性和保护性。使用明矾时,ID 接种在针对系统性和粘膜性蓖麻毒素挑战时更具免疫原性和保护性,并且在保护动物免受蓖麻毒素引起的肺部损伤方面更具优势。