阴性聚合物使负电荷化学探针能够被内化到细菌中
Hannah K Lembke1, Adeline Espinasse1, Mckenna G Hanson1
1Department of Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States.
ACS chemical biology
|September 6, 2023
概括
阴性聚合物有助于负电荷分子进入大肠杆菌和B. subtilis.等细菌. 状聚合物结构特别有效,能够在分娩后促进细菌生长,并增强抗生素的进入.
科学领域:
- 微生物学 微生物学
- 聚合物科学 聚合物科学
- 生物技术是生物技术.
背景情况:
- 细菌细胞外对分子输送构成重大障碍,特别是对于离子化合物.
- 现有的细菌透策略有局限性,需要安全有效的透剂.
- 性聚合物是已知的抗微生物药物,但它们对非性细胞通透性的潜力尚未得到充分探索.
研究的目的:
- 调查性聚合物在将阴离子分子输送到阳性和阴性细菌中的有效性.
- 为了比较线性与微型聚合物架构的内部化效率.
- 评估聚合物介导输送对细菌活力和生长的影响.
主要方法:
- 合成和表征四种含有聚二甲基烯酸乙烯基烯酸块的阴离子聚合物.
- 在*Escherichia coli*和*Bacillus subtilis*中使用基于氨酸三酸盐 (ATP) 的化学探针评估探针内部化.
- 显微镜和生长分析以评估内化效率和细菌活力.
主要成果:
- 阴离子聚合物成功地促进了阳离子ATP探针在两种细菌物种中的内化.
- 状聚合物结构在输送负电荷探针方面表现出卓越的效率.
- 用聚合物和探针处理的细胞保持活力,并继续生长和分裂.
- 性聚合物还增强了包括抗生素在内的其他分子的吸收.
结论:
- 阴离子聚合物,特别是微粒形式,是有效的试剂,可以在不引起显著毒性的情况下将阴离子分子送入细菌中.
- 这些聚合物代表了一种有前途的策略,用于增强治疗药物的输送,如抗生素,进入细菌细胞.
- 这些聚合物在保持活力的同时,能够透细菌细胞的能力,为抗微生物和药物输送研究开辟了新的途径.
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