CD1d-结合糖脂对腺病毒介导的疟疾疫苗的佐剂作用分析

Co-localization of a CD1d-binding glycolipid with an adenovirus-based malaria vaccine for a potent adjuvant effect

点击次数:329   下载次数:247
中文摘要:研究鉴定了一种氟苯基环修饰的aGalCer 类似物7DW8-5,该物质对CD1d分子表现出更高的亲和力,与aGalCer相比更具佐剂活性。在本研究中,将7DW8-5与表达约氏疟原虫环子孢子蛋白(PyCSP)的重组腺病毒联合进行肌肉注射,AdPyCS系统能够实现引流淋巴结(dLNs)中7DW8-5和PyCSP的共定位,尤其是在树状突细胞中。这种共现诱导了一系列串联事件,比如吸引DCs向引流淋巴结(dLNs)富集,并促进其激活和成熟,增强AdPyCS 诱导的DCs向CD8+ T cells分化的能力,最终促进产生佐剂作用,产生抗疟疾的保护作用。
 
外文摘要:A CD1d-binding, invariant (i) natural killer T (NICE)-cell stimulatory glycolipid, alpha-Galactosylceramide (alpha GalCer), has been shown to act as an adjuvant. We previously identified a fluorinated phenyl ring modified aGalCer analog, 7DW8-5, displaying a higher binding affinity for CD1d molecule and more potent adjuvant activity than aGalCer. In the present study, 7DW8-5 co-administered intramuscularly (i.m.) with a recombinant adenovirus expressing a Plasmodium yoelii circumsporozoite protein (PyCSP), AdPyCS, has led to a co-localization of 7DW8-5 and a PyCSP in draining lymph nodes (dLNs), particularly in dendritic cells (DCs). This occurrence initiates a cascade of events, such as the recruitment of DCs to dLNs and their activation and maturation, and the enhancement of the ability of DCs to prime CD8+ T cells induced by AdPyCS and ultimately leading to a potent adjuvant effect and protection against malaria.
外文关键词:Glycolipid adjuvant; CD1d; Dendritic cells; Lymph node; Adenovirus; Malaria vaccine; Co-localization; Protection; CD8+T cells; Intramuscular injection
作者:Li, XM; Huang, J; Kawamura, A; Funakoshi, R; Porcelli, SA; Tsuji, M
作者单位:洛克菲勒大学
期刊名称:VACCINE
期刊影响因子:3.235
出版年份:2017
出版刊次:5
点击下载:CD1d-结合糖脂对腺病毒介导的疟疾疫苗的佐剂作用分析
  1. 编译服务:动物支原体学
  2. 编译者:程金花
  3. 编译时间:2017-08-15