调节亲纤维性巨细胞使用由压缩气体扩展液体 (PGX) 技术®制备的酵母β-葡萄糖微粒
1Department of Medicine, Firestone Institute for Respiratory Health, McMaster University, 50 Charlton Avenue East, L314-5, Hamilton, ON, L8N 4A6, Canada.
Biomaterials
|September 9, 2024
概括
用新技术加工的酵母β-葡萄糖 (YBG) 微粒显示出治疗肺纤维化的前景. 这些微粒有效地将亲纤维性巨细胞重新编程为抗纤维性巨细胞,提供了潜在的治疗策略.
科学领域:
- 免疫学 免疫学 免疫学
- 生物材料科学 生物材料科学
- 肺部医学 肺部医学
背景情况:
- 亲纤维的M2类巨细胞通过生长因子和细胞因子的产生驱动肺纤维化.
- 酵母β-葡萄糖 (YBG) 微粒可以通过Dectin-1受体参与来调节巨细胞极化.
- 目前的YBG微粒制造方法产生了不可预测的免疫调节结果.
研究的目的:
- 开发具有增强性质的YBG微粒,以改善免疫调节.
- 研究PGX-YBG微粒在调节巨细胞极化中的有效性.
- 评估PGX-YBG在肺纤维性疾病中的治疗潜力.
主要方法:
- 使用压缩气体扩展液体 (PGX) 技术制造YBG微粒.
- PGX-YBG微粒的特征 (表面积,密度,尺寸分布).
- 在体外和体外对巨细胞极化和Dectin-1/TLR激活的评估.
主要成果:
- 与喷雾干燥的YBG相比,PGX-YBG微粒的表面积更大,密度更低,尺寸分布更均.
- 在体外,PGX-YBG表现出更高效的Dectin-1激活与最小的TLR 2/4激活.
- 在体外和体外,PGX-YBG有效地将M2类纤维化巨细胞转化为抑制纤维化的表型.
结论:
- 通过PGX技术,可以制造具有卓越物理化学和免疫调节性质的YBG微粒.
- 通过重编程亲纤维性巨细胞,PGX-YBG微粒代表了肺纤维化的一种有前途的治疗剂.
- 这种方法有可能用于治疗各种纤维化肺部疾病.
相关概念视频
01:29Microbes in Food Production
Microbial fermentation is central to food biotechnology, enhancing flavor, texture, preservation, and stability. Fermentative microorganisms metabolize carbohydrates into organic acids, alcohols, and other metabolites that inhibit spoilage organisms and improve digestibility while contributing distinctive sensory qualities.In baking, amylases naturally present in flour hydrolyze starch into monosaccharides such as glucose, which Saccharomyces cerevisiae ferments anaerobically. Through...
01:22Bioreactor Controls-III
Strain improvement is a foundational strategy in industrial microbiology aimed at maximizing microbial productivity, particularly because natural isolates typically yield commercially valuable products in very low concentrations. Although optimizing the culture medium and environmental conditions can improve yields, these adjustments are inherently limited by the organism’s genetic potential. As a result, the focus shifts toward genetic modifications to enhance biosynthetic capacity. The...
01:25Production of Organic Acids
Lactic acid, an important organic acid extensively applied in food, pharmaceutical, and biodegradable polymer industries, is primarily produced via microbial fermentation. This method is favored over chemical synthesis due to its environmental sustainability and capacity for enantiomerically pure product formation. Among various microbial processes, the fermentation of starch-based substrates stands out due to the abundance and renewability of raw materials like corn and potatoes.Hydrolysis of...