An update on recent developments in the prevention and treatment of Staphylococcus aureus biofilms.

金黄色葡萄球菌生物被膜防治最新进展。

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ID: 99422
2019
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Abstract
Staphylococcus aureus (S. aureus) readily forms biofilms on prosthetic devices such as the pacemakers, heart valves, orthopaedic implants, and indwelling catheters. Its biofilms are recalcitrant to antibiotic therapy and pose a serious burden in the healthcare setting as they drastically increase the treatment cost and morbidity of the patient. Prevention and treatment of staphylococcal biofilms has therefore been an area of active research for the past two decades. While catheters coated with different antiseptics and antibiotics capable of preventing S. aureus biofilm formation have been developed, an effective therapy for the dispersal and treatment of established staphylococcal biofilms is not yet available. Hence, many studies have focused on developing novel therapeutic strategies that can tackle established S. aureus biofilm associated infections. This has led to the identification of different phytochemicals (e.g., tannic acid, ellagic acid, xanthohumol etc), enzymes (e.g., Dnases, lysostaphin, α-amylase, hyaluronidase and proteases etc.), sulfahydrl compounds (e.g., dithiothreitol, 2-mercaptoethanol), nanoparticles (e.g., gold, silver, iron, copper and selenium), phage cocktails, antibodies and metal chelators. Apart from the conventional techniques, the therapeutic effects of ultra sound, shock waves and photodynamic therapy for treating S. aureus biofilms are also being investigated. Clinical validation of these studies will equip the medical field with alternate preventive and treatment methods against staphylococcal biofilm infections. This review provides recent updates on the preventive and therapeutic strategies explored to eradicate staphylococcal biofilm formation and related infections.
金黄色葡萄球菌(*Staphylococcus aureus*, *S. aureus*)极易在起搏器、心脏瓣膜、骨科植入物和留置导管等假体装置上形成生物被膜。其生物被膜对抗生素治疗具有极强的耐受性,且显著增加了患者的治疗费用和发病率,对医疗系统构成了沉重负担。因此,在过去的二十年间,葡萄球菌生物被膜的预防与治疗一直是十分活跃的研究领域。尽管目前已开发出涂覆有不同消毒剂和抗生素、能够预防金黄色葡萄球菌生物被膜形成的导管,但针对已形成的葡萄球菌生物被膜的分散清除和治疗,目前仍缺乏有效疗法。因此,诸多研究聚焦于开发能够应对已建立的金黄色葡萄球菌生物被膜相关感染的新型治疗策略。这促进了对多种活性成分与技术的发掘,包括不同的植物化学物质(如单宁酸、鞣花酸、黄腐酚等)、酶类(如DNA酶、溶葡萄球菌素、α-淀粉酶、透明质酸酶和蛋白酶等)、巯基化合物(如二硫苏糖醇、2-巯基乙醇)、纳米颗粒(如金、银、铁、铜和硒)、噬菌体鸡尾酒制剂、抗体以及金属螯合剂。除传统技术外,超声波、冲击波和光动力疗法治疗金黄色葡萄球菌生物被膜的疗效也正在研究之中。这些研究的临床验证将为医学界提供应对葡萄球菌生物被膜感染的替代性预防和治疗手段。本综述总结了旨在清除葡萄球菌生物被膜形成及其相关感染的预防与治疗策略的最新进展。
Reference Key
suresh2019aninternational Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Suresh, Maneesha K;Biswas, Raja;Biswas, Lalitha;
Journal international journal of medical microbiology : ijmm
Year 2019
DOI
S1438-4221(18)30168-1
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