HpBoRB是一种来自虫的CCP域蛋白,它与RELMβ结合.
Vivien Shek1, Abhishek Jamwal2, Danielle J Smyth1
1Division of Cell Signalling and Immunology, School of Life Sciences, University of Dundee, Dundee, the United Kingdom of Great Britain and Northern Ireland.
International journal for parasitology
|September 26, 2025
概括
肠道线虫Heligmosomoides polygyrus bakeri (Hpb) 分泌蛋白质,这些蛋白质与宿主免疫相互作用. 一种新发现的Hpb蛋白,HpBoRB,与抗虫蛋白抗原样分子β (RELMβ) 结合,可能逃避宿主防御.
科学领域:
- 寄生虫学的寄生虫学
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
背景情况:
- 虫感染通过释放免疫调节蛋白来逃避宿主免疫力来建立.
- 肠道线虫Heligmosomoides polygyrus bakeri (Hpb) 分泌许多免疫调节蛋白质,其中许多蛋白质含有补充控制蛋白 (CCP) 域.
研究的目的:
- 识别具有免疫调节功能的新型hpb分泌蛋白质.
- 研究Hpb蛋白与宿主免疫分子之间的潜在相互作用.
主要方法:
- 在Hpb.中对CPC域含有蛋白质的全基因组识别.
- 使用基于Avidity的细胞外相互作用查 (AVEXIS) 对克隆的Hpb蛋白进行与宿主免疫蛋白相互作用的查.
- 使用ELISA,竞争试验,尺寸排除色谱和表面等离子体共振验证相互作用.
主要成果:
- 已确认Hpb蛋白 (HpBARI,TGM1) 和它们的标 (ST2,TGFBR2) 之间的已知相互作用.
- 发现了一种名为HpBoRB的2 CCP域Hpb蛋白与小鼠抗性素样分子β (RELMβ) 之间的新奇相互作用.
- 在HpBoRB中,具有亚纳米分子亲和度的RELMβ具有特定的,耐热的结合.
结论:
- Hpb分泌多种多样的CPC域蛋白质,包括与宿主免疫分子的新型相互作用者.
- 新发现的HpBoRB蛋白可能会干扰RELMβ的抗虫功能,导致寄生虫的持久性.
- 这项研究扩大了对由分泌的Hpb蛋白调解的宿主-寄生虫相互作用的理解.
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