一种新型的多宏类抗生素,马奇达素,是由Streptomyces sp.产生的. K22-001717 这是一个很好的例子
Yuta Awano1, Ryoya Ishii2, Yume Takahashi1
1Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo, 108-8641, Japan.
The Journal of antibiotics
|May 15, 2024
概括
一种新型的多聚烯宏化物,马奇达胺,从Streptomyces中分离出来. 这种化合物表现出强烈的抗莱什曼尼活性,超过了目前的药物帕罗摩辛.
科学领域:
- 微生物学 微生物学
- 自然产品 化学 化学
- 药理学 药理学是指药理学的学科.
背景情况:
- 斯特雷普托米切斯物种是生物活性天然产品的丰富来源.
- 物理化学查有助于从微生物来源发现新型化合物.
研究的目的:
- 从Streptomyces sp.中分离和描述新的化合物. K22-0017. K22-0017. K22-0017. K22-0017. K22-0017. K22-0017. K22-0017. K22-0017. K22-0017. K22-0017. K22-0017. K22-0017. K22-0017. K22-0017. K22-0017. K22-0017. K22-0017. K22-0017. K22-0017. K22-0017. K22-0017. K22-0017. K22-0017. K22-0017. K22-0017. K22-0017. K22-0017. K22-0017. K22-0017. K22-0017. K22-0017. K22-0017. K22-0017. K22-0017. K22-0017. K22-0017. K22-0017. K22-0017. K22-0018. K22-0018. K22-0018. K22-0018. K22-0018. K-0018. K-0018. K-0018. K-0018. K-0018. K-002. K-002. K-001.
- 评估分离化合物的生物活性,重点关注抗微生物和抗莱什曼病毒潜力.
主要方法:
- 使用培养的物理化学选分离化合物.
- 使用质谱 (MS) 和核磁共振 (NMR) 分析 (1D和2D) 阐明结构.
- 对抗Candida albicans和Mucor racemosus的抗真菌活性的评估.
- 与paromomycin相比,antileishmanial活动的评估.
主要成果:
- 一种新型的多聚烯宏化物,马奇达胺素 (1) 和已知的化合物YS-822A (2) 被成功分离出来.
- 马基达胺素 (1) 对Candida albicans和Mucor racemosus表现出较弱的抗真菌活性.
- 马基达米辛 (1) 与已知药物帕罗莫米辛相比,显示出较高的抗莱什曼尼性活性.
结论:
- 马基达胺是一种新型的聚烯宏化物,具有有前途的抗莱什曼性质.
- 需要进一步研究马奇达米作为莱什曼病的潜在治疗剂.
更多相关视频
09:08From a Natural Product to Its Biosynthetic Gene Cluster: A Demonstration Using Polyketomycin from Streptomyces diastatochromogenes Tü6028
Published on: January 13, 2017
17.2K
09:10Synthesis of Masarimycin, a Small Molecule Inhibitor of Gram-Positive Bacterial Growth
Published on: January 7, 2022
2.3K
相关概念视频
Antibiotic Selection
49.1K
Overview
49.1K
Microorganisms in Medicine and Therapeutics
1.4K
Microorganisms play a fundamental role in vaccine development, gene therapy, and therapeutic production. Their biological properties are harnessed to advance medicine and public health. Beyond immunization, microorganisms contribute to gut health, antibiotic synthesis, and genetic disease treatment.Live Attenuated and Inactivated VaccinesLive attenuated vaccines, such as the measles, mumps, and rubella (MMR) vaccine, utilize weakened forms of pathogens to closely resemble natural infections.
1.4K
Production of Antibiotics
285
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...
285
Mechanism of Antibiotic Resistance in MRSA
251
Antibiotic resistance in bacteria arises when microorganisms evolve the ability to withstand drugs designed to kill them or inhibit their growth, rendering once-effective treatments useless. This phenomenon, driven by genetic change and selection under antibiotic exposure, poses a profound threat to modern medicine. Mechanisms include drug-inactivating enzymes (e.g., β-lactamases), efflux pumps that eject antibiotics, mutations altering antibiotic targets, decreased drug uptake, and...
251
Clinical Significance of Antibiotic Resistance
115
Methicillin-resistant Staphylococcus aureus (MRSA) presents a critical public health threat, arising from its capacity to resist β-lactam antibiotics due to acquisition of the mecA gene within the staphylococcal cassette chromosome mec (SCCmec). This gene encodes penicillin-binding protein 2a (PBP2a), which impairs binding efficacy of methicillin and other β-lactams. MRSA has evolved into distinct clonal lineages impacting humans and animals alike, reinforcing its significance within...
115
