在Sarcoptes scabiei中发现的一种新型甲状腺素的表征及其在调节巨细胞功能中的作用
Ran He1, Qian Zhang1, Luyang Xu1
1Department of Parasitology, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China.
Frontiers in microbiology
|September 11, 2023
概括
萨尔科普特 (Sarcoptes scabiei galectins) 的 galectins (SsGalectins) 通过诱导M1巨细胞的极化和炎症来促进病原生. 这项研究阐明了甲虫和宿主之间的免疫相互作用,提供了新的治疗点.
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:
- 萨科普特斯 (S. scabiei) 感染对健康构成重大风险,但其致病机制和宿主免疫相互作用仍然不明确.
- 盖लेक्ट因在调节细胞过程中至关重要,包括免疫反应.
- 研究S. scabiei galectins (SsGalectins) 为了解虫的病原性提供了一个潜在的途径.
研究的目的:
- 为了克隆,表达和表征SsGalectins.
- 阐明SsGalectins在S. scabiei病原性和宿主免疫反应中的作用.
- 在小鼠模型中探索SsGalectins对巨细胞两极分化和炎症的影响.
主要方法:
- 克隆,表达和转录分析SsGalectins.
- 在S. scabiei和宿主皮肤中的SsGalectins的光组织定位.
- 构建小鼠皮炎模型,以评估重组SsGalectins (rSsGalectins) 的影响.
- 定量PCR和ELISA用于分析巨细胞极化标记物 (IL-1β,IL-6,iNOS).
主要成果:
- 鉴定出SsGalectins是分泌-分泌蛋白质,局部存在于虫口腔,肠道和身体表面.
- rSsGalectins在小鼠模型中诱导了巨细胞透和炎症.
- rSsGalectins通过上调促炎性细胞因子 (IL-1β,IL-6,iNOS) 来促进M1巨细胞的两极分化.
- 在S. scabiei的各种发育阶段观察到SsGalectins的差异性基因表达.
结论:
- 在S. scabiei的发病过程中,SsGalectins通过调节宿主巨细胞偏向M1表型来发挥重要作用.
- 这种M1两极分化有助于在感染期间的炎症反应.
- 这些发现为S. scabiei与宿主免疫相互作用以及预防和治疗的潜在目标提供了新的见解.
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