抗菌活动的Pediococcus pentosaceusPMY2对抗多药耐药性病原体
Gyeong-Seon Yi1, Xiangji Jin2, Qiwen Zheng3
1Department of Convergent Biotechnology and Advanced Materials Engineering, Graduate School, Kyung Hee University, Yongin 17104, Republic of Korea.
Antibiotics (Basel, Switzerland)
|April 29, 2025
概括
佩迪奥科克斯 (Pediococcus pentosaceus) PMY2表现出强大的抗微生物和抗炎作用,对抗多药耐药性病原体. 这种天然药物对抗抗生素耐药性有望发挥作用.
科学领域:
- 微生物学 微生物学
- 免疫学 免疫学 免疫学
- 药理学 药理学是指药理学的学科.
背景情况:
- 多药耐药 (MDR) 病原体对有效的感染治疗构成重大威胁.
- 佩迪奥科克斯 (P. pentosaceus) 具有已知的抗菌特性,但其对MDR菌株的有效性需要进一步研究.
- 关于P. pentosaceus对抗新兴抗生素耐药性的潜力存在有限的研究.
研究的目的:
- 为了评估Pediococcus pentosaceus PMY2对MDR病原体的抗菌活性.
- 评估P. pentosaceus PMY2.2的抗炎和细胞毒性作用.
- 为了确定P. pentosaceus PMY2作为天然抗菌剂的潜力.
主要方法:
- 在体外评估抗微生物活性,包括最小抑制度 (MIC) 和最小杀菌度 (MBC) 针对金黄色葡萄球菌 (S. aureus) 和耐甲素金黄色葡萄球菌 (MRSA).
- 对P. pentosaceus PMY2的生物膜抑制的评估2.
- 使用RAW 264.7巨细胞对抗炎症作用的体外分析,测量氧化 (NO),IL-6和TNF-α水平.
- 对P. pentosaceus PMY2的无细胞超体 (CFS) 的细胞毒性评估.
主要成果:
- P. pentosaceus PMY2对S. aureus和MRSA表现出显著的抗菌活性,MIC值为0.31 mg/mL.
- 在MIC水平上,P. pentosaceus PMY2 实质性地抑制了生物膜的形成 (62.2% 对于金黄色菌,51.5% 对于MRSA).
- 来自P. pentosaceus PMY2的CFS表现出低细胞毒性和强烈的抗炎作用,显著降低了NO,IL-6和TNF-α的产生.
结论:
- 佩迪奥科克斯 (Pediococcus pentosaceus) PMY2对MDR病原体具有强大的抗菌和抗炎性质.
- 这些发现凸显了P. pentosaceus PMY2作为天然抗菌剂的潜力,用于解决抗生素耐药性的问题.
- PMY2 CFS 是开发针对耐药细菌感染的新型治疗策略的有希望的候选者.
相关概念视频
01:23Antimicrobial Proteins
745
Antimicrobial proteins are important components of the immune system. They aid the body in combating pathogens by either killing them directly or hindering their replication processes. Four main types of antimicrobial substances are interferons, the complement system, iron-binding proteins, and antimicrobial proteins.
Interferons
Interferons (IFNs) are proteins produced by lymphocytes, macrophages, and fibroblasts infected with viruses. While IFNs cannot prevent viruses from entering and...
Interferons
Interferons (IFNs) are proteins produced by lymphocytes, macrophages, and fibroblasts infected with viruses. While IFNs cannot prevent viruses from entering and...
745
01:18Surface Membrane Barriers
687
The skin and mucous membranes serve as the primary line of defense against pathogens by providing both physical and chemical protection. These barriers are essential in preventing the entry and establishment of microbes, thereby maintaining the integrity of the host.
The outer layer of the skin, the epidermis, is a robust barrier comprising layers of closely packed keratinized cells. This dense arrangement prevents microbes from penetrating the body. The periodic shedding of epidermal cells...
The outer layer of the skin, the epidermis, is a robust barrier comprising layers of closely packed keratinized cells. This dense arrangement prevents microbes from penetrating the body. The periodic shedding of epidermal cells...
687
01:27Combined Effects of Drugs: Synergism
3.6K
Synergism is a useful mechanism where combining two or more drugs is more effective than each constituent used alone. Such combinations are also called supra-additive interactions. The drugs collectively enhance the final therapeutic effect by acting on different targets. Another advantage is that the low dose of each constituent drug is sufficient to achieve the desired effect. This helps reduce the duration of therapy and lower the adverse effects of these drugs.
Such synergistic combinations...
Such synergistic combinations...
3.6K
01:23Hand hygiene
3.1K
Asepsis is the practice of preventing or breaking the chain of infection. The nurse employs aseptic techniques to prevent the spread of microorganisms and reduce the risk of diseases. Hand hygiene is the cornerstone of aseptic techniques and is classified into medical and surgical asepsis. Medical asepsis includes hand hygiene and the use of gloves. Surgical asepsis, or the sterile technique, refers to practices that render and keep objects and areas free of microorganisms.
Hand washing...
Hand washing...
3.1K