优化高质量的微藻衍生细胞外囊泡的可持续生产,通过批次再养的 perfusion 培养
Sabrina Picciotto1, Dario Belmonte2, Paola Gargano3
1Cell-Tech HUB and Institute for Research and Biomedical Innovation (IRIB), National Research Council of Italy (CNR), Palermo 90146, Italy; Cell-Tech HUB and Institute of Biophysics (IBF) - National Research Council of Italy (CNR), Palermo 90146, Italy.
Journal of biotechnology
|July 20, 2025
概括
微藻衍生的细胞外囊泡 (纳米藻体) 使用一种新的批次再养系统产生. 这种方法提高了纳米体质量和产量,为治疗纳米载体提供了可持续和成本效益的来源.
科学领域:
- 生物技术是生物技术.
- 纳米医学是一种纳米医学.
- 微藻养殖 微藻养殖
背景情况:
- 细胞外囊泡 (EVs) 显示出治疗潜力,但面临着来自人类细胞的生产挑战.
- 微藻衍生的EV (纳米藻体) 是一种可持续和可扩展的替代方案.
- 优化纳米体生产对于它们的临床转化至关重要.
研究的目的:
- 使用批量再供应系统优化纳米体的生产.
- 为了提高微藻活力和纳米藻体质量.
- 评估生产方法的可扩展性和成本效益.
主要方法:
- 实施批量再养培养系统,模拟 perfusion 条件.
- 通过批量再养产生的纳米体与标准批量培养的比较.
- 分析粒子产量,蛋白质含量,EV完整性和时空产量 (STY).
- 在实验室中评估纳米体细胞保护作用.
主要成果:
- 批量再养产生了10倍少的颗粒,但总EV蛋白质产量是1.4倍.
- 观察到与EV相关的光雌激酶活性增加和膜封闭的EV.
- 批量再料增强了功能完整性,减少了非膀性同隔离物.
- 与批次系统相比,实现了时空产量 (STY) 的三倍增长.
- 两种方法中的纳米体体在体外表现出类似的细胞保护作用.
结论:
- 批量再供应系统显著提高了纳米体质量和生产效率.
- 基于微藻的 perfusion-inspired 系统提供了一种绿色,经济高效,可扩展的 EV 生产策略.
- 优化的纳米体因其保留的功能性质而适合生物医学应用.
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