克隆,从Furfurilactobacillus rossiae生物转化中的β-葡萄糖酶的特征及其疗效
Thi Ngoc Anh Tran1, Jinnatun Nahar2, Jin-Kyu Park2
1Department of Biology, Faculty of Science, Nong Lam University, Ho Chi Minh City, 71300, Vietnam. tranngocanh@hcmuaf.edu.vn.
Archives of microbiology
|October 3, 2024
概括
来自Furfurilactobacillus rossiae的一种新型酶有效地将人参化物转化为有价值的小化合物. 由此产生的生物转化提取物显示出增强的抗癌和抗炎作用,在正常细胞中毒性降低.
科学领域:
- 生物技术是生物技术.
- 药理学 药理学是指药理学的学科.
- 酶学 是一种酶学.
背景情况:
- 轻微的金赛诺化物具有显著的生物和药理活动.
- 酶性水解为生产有价值的轻微人参化物提供了一个有前途的途径.
研究的目的:
- 从Furfurilactobacillus rossiae中克隆和表达一种新型的金色化物-水解糖酶.
- 评估生物转化基诺斯特玛提取物 (BGE) 的抗癌和抗炎潜力.
主要方法:
- 在大肠杆菌中克隆和表达来自F. rossiae的β-葡萄糖酶 (FrBGL3).
- 在最佳条件下 (40°C,15分钟,pH值6.0) 酶转化人参化物Rb1和Gyp XVII.
- 在A549肺癌和RAW 264.7巨细胞中对细胞毒性,氧化 (NO) 生产,活性氧物种 (ROS) 生产和基因表达的体外评估.
主要成果:
- 该酶有效地将Rb1转化为Rd,Gyp XVII转化为F2和化合物K.
- 与500μg/ml的Gynostemma提取物 (GE) 相比,BGE对A549肺癌细胞具有显著更高的细胞毒性,在正常细胞中毒性较低.
- BGE在癌细胞中增强了ROS生成,并调节了与亡相关的基因表达 (增加了p53,Bax,Caspase 3,9;减少了Bcl2).
- 在RAW 264.7细胞中,BGE降低了LPS诱导的NO和ROS水平,并抑制了促炎性基因表达 (COX-2,iNOS,IL-6,IL-8).
结论:
- FrBGL3 对于高产量,低成本生产轻微人参化物是有效的.
- 生物转化Gynostemma提取物 (BGE) 显示出作为抗癌和抗炎剂的潜力.
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