Bröker Michael
a GSK Vaccines GmbH , Marburg , Germany.
Hum Vaccin Immunother. 2016 Mar 3;12(3):664-7. doi: 10.1080/21645515.2015.1086048.
When tetanus toxoid (TT), diphtheria toxoid (DT) or Cross Reacting Material 197 (CRM197), a non-toxic diphtheria toxin mutant protein, are used as carrier proteins in glycoconjugate vaccines, these carriers induce a protein specific antibody response as measured by in vitro assays. Here, it was evaluated whether or not glycoconjugates based on TT, DT or CRM197 can induce a protective immune response as measured by potency tests according to the European Pharmacopoeia. It could be shown, that the conjugate carriers TT and DT can induce a protective immune response against a lethal challenge by toxins in animals, while glycoconjugates based on CRM197 failed to induce a protective immune response. Opportunities for new applications of glycoconjugates are discussed.
当破伤风类毒素(TT)、白喉类毒素(DT)或交叉反应物质197(CRM197,一种无毒的白喉毒素突变蛋白)用作糖缀合物疫苗中的载体蛋白时,这些载体可诱导体外检测所测定的蛋白质特异性抗体反应。在此,根据欧洲药典通过效价试验评估了基于TT、DT或CRM197的糖缀合物是否能诱导保护性免疫反应。结果表明,结合物载体TT和DT可诱导动物产生针对毒素致死性攻击的保护性免疫反应,而基于CRM197的糖缀合物未能诱导保护性免疫反应。文中还讨论了糖缀合物新应用的机会。