探索莱什曼亚大菌对介质干细胞的影响:评估差异化和免疫调节功能
Elham Mashayekh1, Arezou Khosrojerdi2, Ahmad Zavaran Hosseini3
11 Department of Immunology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran. elhammashayekh1372@gmail.com.
Iranian journal of allergy, asthma, and immunology
|March 13, 2024
概括
介酶干细胞 (MSC) 吞了Leishmania主要寄生虫,增加了收费类受体 (TLR) 表达和活性氧物种. 这种暴露会降低MSC的免疫调节能力,影响其在寄生虫感染中的治疗用途.
科学领域:
- 免疫学 免疫学 免疫学
- 干细胞生物学 干细胞生物学
- 寄生虫学的寄生虫学
背景情况:
- 病原体识别受体 (PRRs),包括收费类受体 (TLRs),调节介质干细胞 (MSC) 功能.
- PRR激活可以改变MSC表面标记物,分化潜力和分泌因素,可能影响治疗结果.
- 莱什马尼亚主要 (L.主要) 感染对MSC属性的影响需要详细调查.
研究的目的:
- 调查L. major促性菌对脂肪组织衍生的MSCs的功能特征的影响.
- 在暴露于寄生虫后分析TLR表达的变化,表面标记物概况和细胞因子分泌.
- 评估这些改变对MSCs免疫调节能力的影响.
主要方法:
- 脂肪组织衍生的MSCs的隔离和培养.
- 通过Giemsa染色,对MSC暴露于L.主要促性菌和对寄生虫吞的量化.
- 通过实时PCR和流细胞测量评估TLR和表面标记物表达.
- 测量活性氧物种和细胞因子水平.
主要成果:
- MSCs成功地吞了L.主要的寄生虫.
- 在暴露后的MSC中观察到TLR4和TLR6的表达增加.
- 促炎性细胞因子水平上升,而转化生长因子β下降.
- 暴露于寄生虫导致反应性氧物种的产生增加和CD29和CD73表面标记物的下调.
结论:
- 大型感染显著改变MSC表型和功能,包括增加TLR表达和降低免疫调节能力.
- 这些变化,特别是调节免疫反应的能力减弱,对MSC在莱什曼病的治疗应用具有关键意义.
- 需要进一步的研究来理解和潜在地减轻这些影响,以改善基于MSC的抗寄生病疗法.
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