一种改进的方法,通过差分离心来丰富来自Giardia intestinalis的大型细胞外囊泡
Abel Sana1,2, Izadora Volpato Rossi1,2, Bruna Sabatke1,3
1EVAHPI-Extracellular Vesicles and Host-Parasite Interactions Research Group, Laboratório de Biologia Celular, Instituto Carlos Chagas-Fiocruz, Curitiba 81310-020, Brazil.
Life (Basel, Switzerland)
|September 28, 2023
概括
这项研究改进了从Giardia intestinalis中分离大型细胞外囊泡 (LEV) 的方法. 优化的超离心技术产生了更具代表性的LEV群体,用于研究寄生虫与宿主相互作用.
科学领域:
- 寄生虫学的寄生虫学
- 细胞生物学 细胞生物学
- 生物化学 生物化学
背景情况:
- 大肠会导致大肠,一种腹性疾病.
- 细胞外囊泡 (EVs) 介导寄生虫与宿主之间的相互作用.
- 电动汽车的异质性需要改进的隔离方法.
研究的目的:
- 为了丰富来自Giardia intestinalis的大细胞外囊泡 (LEVs).
- 优化EV隔离,以更好地了解寄生虫与宿主之间的相互作用.
- 为了比较LEV缩的不同离心法.
主要方法:
- 由 CaCl2.2.的无血清TYI-S-33介质诱导的Giardia肠道囊泡.
- 在1小时内以15,000×g进行超离心,在4小时内以15,000×g进行离心,在1.5小时内以100,000×g进行离心.
- 通过皮尔斯BCA测定和纳米粒子跟踪分析 (NTA) 来量化EV.
主要成果:
- 在4小时以15,000×g和1.5小时以100,000×g的离心率进行离心,在1小时内缩了超过15,000×g的EV.
- 在4小时内15000×g实现了类似的颗粒度,在1.5小时内达到10万×g.
- NTA显示了更高的LEV度,1.5小时100,000×g和4小时15,000×g.
结论:
- 标准的15,000×g1小时方法对于代表性的LEV隔离是不够的.
- 优化的方法 (1,5小时的100,000×g或4小时的15,000×g) 提高了LEV的丰富度.
- 改进的LEV隔离有助于研究Giardia与宿主相互作用.
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