...
首页> 外文期刊>Transgenic research >Production of double repeated B subunit of Shiga toxin 2e at high levels in transgenic lettuce plants as vaccine material for porcine edema disease
【24h】

Production of double repeated B subunit of Shiga toxin 2e at high levels in transgenic lettuce plants as vaccine material for porcine edema disease

机译:在转基因莴苣植物中高产志贺毒素2e的双重复B亚基作为猪水肿病的疫苗原料

获取原文
获取原文并翻译 | 示例
           

摘要

Pig edema disease is a bacterial disease caused by enterohemorrhagic Escherichia coli. E. coli produces Shiga toxin 2e (Stx2e), which is composed of one A subunit (Stx2eA) and five B subunits (Stx2eB). We previously reported production of Stx2eB in lettuce plants as a potential edible vaccine (Matsui et al. in Biosci Biotechnol Biochem 73:1628-1634, 2009). However, the accumulation level was very low, and it was necessary to improve expression of Stx2eB for potential use of this plant-based vaccine. Therefore, in this study, we optimized the Stx2eB expression cassette and found that a double repeated Stx2eB (2x Stx2eB) accumulates to higher levels than a single Stx2eB in cultured tobacco cells. Furthermore, a linker peptide between the two Stx2eB moieties played an important role in maximizing the effects of the double repeat. Finally, we generated transgenic lettuce plants expressing 2x Stx2eB with a suitable linker peptide that accumulate as much as 80 mg per 100 g fresh weight, a level that will allow us to use these transgenic lettuce plants practically to generate vaccine material.
机译:猪水肿病是由肠出血性大肠杆菌引起的细菌性疾病。大肠杆菌产生志贺毒素2e(Stx2e),它由一个A亚基(Stx2eA)和五个B亚基(Stx2eB)组成。我们先前报道了莴苣植物中Stx2eB的生产作为一种潜在的可食用疫苗(Matsui等人,Biosci Biotechnol Biochem 73:1628-1634,2009)。但是,积累水平非常低,因此有必要改善Stx2eB的表达,以潜在地使用这种基于植物的疫苗。因此,在这项研究中,我们优化了Stx2eB表达盒,发现在培养的烟草细胞中,两次重复的Stx2eB(2x Stx2eB)积累的水平高于单个Stx2eB。此外,两个Stx2eB部分之间的连接肽在最大化双重复的作用中发挥了重要作用。最后,我们用合适的连接肽生成了表达2x Stx2eB的转基因生菜植株,每100克鲜重积累了80 mg,该水平将使我们能够实际使用这些转基因生菜植株来产生疫苗材料。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号