Gracilaria edulis的内性细菌通过PPDHMP对抗人类细菌病原体 - 一种原始的单分子产品开发方法
Manas Manam1, Sankalp Srivatsa1, W Jabez Osborne1
1School of Bio Sciences & Technology, Vellore Institute of Technology, Vellore, 632014, Tamil Nadu, India.
Microbial pathogenesis
|March 2, 2025
概括
海洋细菌提供了新的抗生素对抗耐药性病原体的希望. 来自Bacillus subtilis的一种化合物显示出作为口服抗生素的前景,抑制细菌细胞壁和β-乳酸酶.
科学领域:
- 微生物学 微生物学
- 海洋生物技术 海洋生物技术
- 药物发现 药物发现 药物发现
背景情况:
- 抗生素耐药性是一个日益增长的全球健康威胁.
- 新型抗生素的开发对于对抗抗性细菌感染至关重要.
- 海洋内植物是发现新抗菌化合物的有希望的来源.
研究的目的:
- 从具有抗菌性质的Gracilaria edulis中分离和描述内菌细菌.
- 识别和评估由这些内细胞产生的新生物活性化合物.
- 探索这些化合物作为新型抗生素候选者的潜力.
主要方法:
- 16S rRNA基因测序用于细菌识别.
- 气相色谱-质谱 (GC-MS),里埃变换红外光谱 (FTIR) 和核磁共振 (NMR) 用于化合物识别.
- 分子对接研究,以预测目标相互作用.
- 在体外测定抗菌活性,植物毒性和溶血效应.
- 用于制药动力学和毒性概况的ADMET分析.
主要成果:
- 从Gracilaria edulis中分离的细菌细菌表现出显著的抗菌活性.
- 这种化合物被确定为Pyrrolo[1,2-α] pyrazine-1,4-dione,hexahydro-3-(2-methylpropyl) (PPDHMP). 这种化合物被确定为Pyrrolo[1,2-α] pyrazine-1,4-dione,hexahydro-3-(2-methylpropyl) (PPDHMP).
- 优化的介质增强了PPDHMP的产生,增加了其抑制区.
- 分子对接建议PPDHMP作为一种潜在的β-乳酸酶抑制剂.
- PPDHMP表现出细胞壁抑制活性,具有有利的ADMET,植物毒性和血液溶解特征.
结论:
- 海洋内植物,如来自Gracilaria edulis的Bacillus subtilis,是新型抗生素的宝贵来源.
- PPDHMP是一种有前途的化合物,具有作为口服抗生素候选者的潜力.
- 对PPDHMP的进一步研究可能会导致针对抗生素耐药细菌的新疗法策略.
相关概念视频
Biological Methods for Microbial Control
Biological agents offer an effective means of controlling microbial growth by leveraging natural processes like predation, competition, and the secretion of antimicrobial substances.Predatory bacteria such as Bdellovibrio species target and kill pathogens like Salmonella and E. coli. They are widely used in poultry farms to control infections. Myxococcus species help combat plant-pathogenic fungi. These naturally occurring predators serve as eco-friendly alternatives to chemical pesticides and...
Microbes in the Production of Fermented Foods
Lactic acid bacteria (LAB) and molds are instrumental in fermenting plant-based foods to enhance preservation and ensure year-round availability. These microbial processes convert plant carbohydrates into organic acids and other metabolites that inhibit spoilage organisms and contribute to the sensory qualities of the final product.In sauerkraut production, cabbage goes through a microbial succession that starts with cocci such as Leuconostoc mesenteroides. These microbes begin fermentation by...
Probiotics
Probiotics are live, non-pathogenic microorganisms that confer health benefits by modulating the gut microbiota. The human gastrointestinal tract harbors a complex microbial ecosystem, and the balance of this microbiota is crucial for digestive and systemic health. Among the most extensively studied and utilized probiotics are species formerly classified within the genera Lactobacillus and Bifidobacterium. These organisms not only naturally colonize the human gut but are also consumed through...
Production of Antibiotics
Penicillin, one of the earliest and most widely used antibiotics, is produced industrially by the filamentous fungus Penicillium chrysogenum. Large stirred-tank bioreactors ranging from tens to hundreds of thousands of liters maintain tightly controlled temperature, pH, and dissolved oxygen conditions to support fungal metabolism and maximize antibiotic yield. Penicillin is a secondary metabolite, synthesized primarily during the stationary growth phase, which requires a carefully managed...
iChip
The cultivation of environmental microorganisms has long been hindered by the inability to replicate complex native conditions in vitro. The isolation chip (iChip) addresses this limitation by facilitating the growth of previously uncultivable microorganisms through in situ incubation. Designed for high-throughput microbial cultivation, the iChip comprises hundreds of microchambers, each capable of housing a single microbial cell. These microchambers are loaded with a mixture of molten agar and...
Bioplastics
Bioplastics derived from microbial processes present a sustainable alternative to conventional petroleum-based plastics. Among these, polyhydroxyalkanoates (PHAs), particularly polyhydroxybutyrates (PHBs), have emerged as prominent candidates due to their biodegradability and biocompatibility. These polymers are synthesized by a variety of bacteria, such as Cupriavidus necator and Pseudomonas putida, which naturally accumulate PHAs as intracellular carbon and energy reserves, especially under...


