强化抗真菌治疗:使用小分子释放现有疗法的潜力
Rebecca S Shapiro1, Aleeza C Gerstein2,3
1Department of Molecular and Cellular Biology, University of Guelph , Guelph, Ontario, Canada.
mBio
|August 2, 2023
概括
1,4-二类药物可以提高抗真菌药物对Candida物种的有效性. 这种组合治疗方法增强了药物的活性,降低了毒性,并改善了感染模型中的生存率.
科学领域:
- 医学真菌学 医学真菌学
- 传染性疾病 传染性疾病
- 药物发现 药物发现 药物发现
背景情况:
- 由于抗真菌药物的有限可用性和向真菌细胞的固有困难,真菌感染对全球健康构成重大挑战.
- 抗真菌耐药性是一个日益关注的问题,需要新的治疗策略,如组合疗法.
- 将现有的抗真菌药与小分子辅助剂结合起来,是克服耐药性和延长药物有效性的有希望的方法.
研究的目的:
- 确定可以增强现有抗真菌药物对病原性 * 坎迪达 * 物种的活性的新型化合物.
- 调查1,4-二二类药物作为辅助剂的潜力,以增强醇抗真菌功效.
- 评估这种联合治疗对真菌毒性和宿主生存的影响.
主要方法:
- 检查小分子与醇抗真菌剂对*Candida*分离物的协同作用.
- 对*Candida*物种的抗真菌敏感性测试,单独使用可纳和与1,4-二zepines结合使用.
- 评估真菌发光线抑制和*Galleria mellonella*生存测试.
主要成果:
- 1,4-二司类药物显著增强了可纳的活性,对可纳敏感和耐药的*Candida*分离物具有显著的强化作用.
- 这些化合物增强了亚类的杀菌活性,亚类通常是菌的.
- 在*Galleria mellonella*模型中,组合疗法抑制了真菌纤维化,改善了宿主存活率.
结论:
- 1,4-二氨酸是一种有希望的化合物类别,用于对抗*Candida*感染的联合抗真菌疗法.
- 这种策略可以克服醇耐药性,增强杀菌活性,减少真菌毒性.
- 这些发现有助于开发新的方法来对抗危及生命的真菌病和抗菌素耐药性.
相关概念视频
Combined Effects of Drugs: Synergism
4.0K
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...
4.0K
Antimicrobial Effectiveness
48
The effectiveness of antimicrobial agents depends on various factors influencing their ability to eliminate microbial populations. Larger microbial populations require more time for complete eradication, emphasizing the importance of population size analysis when evaluating antimicrobial efficacy.Microbial resistance to antimicrobial agents varies significantly. Highly resilient microorganisms include endospores, gram-negative bacteria, and non-enveloped viruses, while prions are exceptionally...
48
Antimicrobial Proteins
1.0K
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...
1.0K
Chemical Agents for Microbial Control
54
Chemicals play important roles in controlling microbial growth by targeting microbial structures and functions as sanitizers, antiseptics, disinfectants, and sterilants.Alcohols are commonly used sanitizers, effectively disrupting lipid membranes, which compromises cell integrity. They are also used as antiseptics and disinfectants due to their rapid action and versatility.Phenols and their derivatives phenolics , known for denaturing proteins and disrupting cell membranes, are particularly...
54


