来自Lactobacillus Paragasseri K7的气素:准备性隔离和发现剂量依赖的抗炎作用
Humna Liaqat1, Diana Paveljšek1, Jernej Oberčkal1
1Department of Animal Science, Biotechnical Faculty, University of Ljubljana, Domžale, 1230, Slovenia.
来自Lactobacillus paragasseri K7的gassericins K7和bacteriocins,在免疫细胞中显示出显著的抗炎作用. 这项研究净化了这些化合物,揭示了它们作为炎症疾病后生物的潜力.
科学领域:
- 微生物学 微生物学
- 免疫学 免疫学 免疫学
- 生物化学 生化学
背景情况:
- 细菌素,如Lactobacillus paragasseri K7中的Gassericins K7,是抗菌性.
- 由于净化方面的挑战,K7气素的表征一直受到阻碍.
研究的目的:
- 为K7.7.Gassericins开发一个准备隔离和净化工作流程.
- 评估净化K7.7气素的抗菌,细胞毒性和免疫调节作用.
主要方法:
- 硫酸沉,珀石XAD-16提取和逆相色谱被用于净化.
- 质谱测量证实了的成分.
- 进行了抗菌活性,RAW 264.7巨细胞中的细胞毒性测定,以及炎症标志物 (NO,iNOS,TNF-α,IL-6) 的评估.
主要成果:
- 一个净化工作流程产生了所有四个预期的Gassericins K7成分,包括新的GasK7Aβ.
- 纯化Gassericins K7对Latilactobacillus sakei表现出强大的抗菌活性.
- 气素K7表现出剂量依赖的抗炎作用,减少了NO的产生和促炎性细胞因子的分泌,而不会引起炎症.
结论:
- 开发的方法可以生产足够的气素K7用于进一步的研究.
- 纯化气素K7在免疫细胞中具有显著的抗炎性质.
- 气素K7显示潜在的后生物成分或生物治疗候选人的炎症状况.
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