Hernández Marcos, Areche Carlos, Castañeta Grover, Rojas Diego, Varas Macarena A, Marcoleta Andrés E, Chávez Francisco P
Laboratorio de Microbiología de Sistemas, Departamento de Biología, Facultad de Ciencias, Universidad de Chile, Santiago, Chile.
Departamento de Química, Facultad de Ciencias, Universidad de Chile, Santiago, Chile.
Nat Prod Res. 2025 Sep;39(18):5179-5186. doi: 10.1080/14786419.2024.2360166. Epub 2024 Jun 3.
The rise of antibiotic-resistant bacterial strains represents an important challenge for global health, underscoring the critical need for innovative strategies to confront this threat. Natural products and their derivatives have emerged as a promising reservoir for drug discovery. The social amoeba is a potent model organism in this effort. Employing this invertebrate model, we introduce a novel perspective to investigate natural plant extracts in search of molecules with potential antivirulence activity. Our work established an easy-scalable developmental assay targeting a virulent strain of , with as the representative plant. The main objective was to identify tentative compounds from the extract that attenuate the virulence of virulence without inducing cytotoxic effects on amoeba cells. Notably, the methanolic root extract of fulfilled these prerequisites compared to the dichloromethane extract. Using UHPLC Q/Orbitrap/ESI/MS/MS, 63 compounds were tentatively identified in both extracts, 47 in the methanolic and 29 in the dichloromethane, with 13 compounds in common. This research underscores the potential of employing -assisted pharmacognosy to discover new antivirulence agents against multidrug-resistant pathogens.
抗生素耐药细菌菌株的出现对全球健康构成了重大挑战,凸显了应对这一威胁的创新策略的迫切需求。天然产物及其衍生物已成为药物发现的一个有前景的来源。社会变形虫是这项工作中的一种有力模式生物。利用这种无脊椎动物模型,我们引入了一种新的视角来研究天然植物提取物,以寻找具有潜在抗毒力活性的分子。我们的工作建立了一种易于扩展的发育分析方法,以一种有毒力的菌株为目标,以[植物名称]作为代表性植物。主要目标是从[植物名称]提取物中鉴定出能减弱[细菌名称]毒力且对变形虫细胞无细胞毒性作用的暂定化合物。值得注意的是,与二氯甲烷提取物相比,[植物名称]的甲醇根提取物满足了这些先决条件。使用超高效液相色谱-四极杆/轨道阱/电喷雾电离/串联质谱法,在两种提取物中初步鉴定出63种化合物,甲醇提取物中47种,二氯甲烷提取物中29种,共有13种化合物相同。这项研究强调了采用[植物名称]辅助植物化学来发现针对多重耐药病原体的新型抗毒力药物的潜力。