尼马类甲状腺素抑制基白血病 RBL-2H3 细胞在IgE介导激活中死亡
Marta Maruszewska-Cheruiyot1, Ludmiła Szewczak1, Katarzyna Krawczak-Wójcik1
1Laboratory of Parasitology, General Karol Kaczkowski Military Institute of Hygiene and Epidemiology, 01-163 Warsaw, Poland.
International journal of molecular sciences
|July 13, 2024
概括
寄生虫虫释放Tci-gal-1,一种抑制巨细胞脱粒和亡的蛋白质. 这种Teladorsagia circumcincta galectin 1的免疫调节有助于寄生虫逃避宿主防御,并减少炎症.
科学领域:
- 免疫学 免疫学 免疫学
- 寄生虫学的寄生虫学
- 分子生物学分子生物学
背景情况:
- 乳腺细胞对于宿主对寄生性线虫的防御至关重要.
- 寄生性线虫分泌的分子,如 galectin 1 (Tci-gal-1),以逃避宿主免疫反应.
- 来自Teladorsagia circumcincta的Tci-gal-1以IgE-依赖的方式调节乳腺细胞脱粒和介质释放.
研究的目的:
- 为了研究Tci-gal-1对激活性巨细胞的基因表达,蛋白质产生和亡的影响.
- 了解Tci-gal-1如何影响寄生性线虫感染期间的免疫反应.
主要方法:
- 激活的老鼠基性白血病RBL-2H3细胞被用Tci-gal-1.
- 用微阵列分析分析基因表达.
- 用抗体阵列和ELISA测量了细胞因子和亡相关分子的蛋白质水平.
- 通过细胞计和β-hexosaminidase释放试验评估了亡和脱粒化.
主要成果:
- 在激活的RBL-2H3细胞中,Tci-gal-1治疗抑制了亡并减少了脱粒化.
- 没有检测到基因表达的显著变化.
- 显著抑制了亲细胞亡分子 (RAGE,FasL) 和细胞因子 (IL-9,IL-10,IL-13,TNF-α,IL-2) 的产生.
- 在不影响基因转录的情况下,Tci-gal-1调节了蛋白质的产生和亡.
结论:
- Tci-gal-1在调节宿主对寄生性线虫的免疫反应方面发挥着至关重要的作用.
- 这种寄生虫蛋白质抑制杆细胞脱粒和亡,有助于免疫逃避.
- Tci-gal-1对于抑制由巨细胞活动驱动的慢性炎症至关重要.
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