Triclosan-conjugated, Lipase-responsive Polymeric Micelles for Eradication of Staphylococcal Biofilms

IF 4.1 2区 化学 Q2 POLYMER SCIENCE Chinese Journal of Polymer Science Pub Date : 2024-03-04 DOI:10.1007/s10118-024-3094-8
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Abstract

Bacterial biofilms present a significant challenge in treating drug-resistant infections, necessitating the development of innovative nanomedicines. In this study, we introduce triclosan-conjugated, lipase-responsive polymeric micelles designed to exploit biofilm properties and serve as a responsive drug delivery platform. The micelles were created using an amphiphilic block polymer synthesized via ring-opening polymerization of ε-caprolactone (CL) and triclosan-containing cyclic trimethylene carbonate (MTC-Tri). Poly(ethylene glycol) (PEG-OH) acted as the macro-initiator, resulting in micelles with a PEG shell that facilitated their penetration into bacterial biofilms. An important advantage of our micelles lies in their interaction with local bacterial lipases within biofilms. These lipases triggered rapid micelle degradation, releasing triclosan in a controlled manner. This liberated triclosan effectively eliminated bacteria embedded in the biofilms. Notably, the triclosan-conjugated micelles displayed minimal toxicity to murine fibroblasts, indicating their biocompatibility and safety. This finding emphasizes the potential application of these micelles in combatting drug resistance observed in bacterial biofilms. Our triclosan-conjugated, lipase-responsive polymeric micelles exhibit promising characteristics for addressing drug resistance in bacterial biofilms. By harnessing biofilm properties and implementing a responsive drug delivery system, we seek to provide an effective solution in the fight against drug-resistant bacteria.

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用于消除葡萄球菌生物膜的三氯生共轭脂酶响应型聚合物胶束
摘要 细菌生物膜是治疗耐药性感染的重大挑战,因此有必要开发创新型纳米药物。在本研究中,我们介绍了三氯生共轭脂肪酶响应型聚合物胶束,其设计目的是利用生物薄膜的特性,并将其作为一种响应型给药平台。胶束是通过ε-己内酯(CL)和含三氯生的环状三亚甲基碳酸酯(MTC-Tri)的开环聚合合成的两亲嵌段聚合物制成的。聚乙二醇(PEG-OH)作为大引发剂,产生了具有 PEG 外壳的胶束,这有助于它们渗透到细菌生物膜中。我们的胶束的一个重要优势在于它们能与生物膜内的局部细菌脂肪酶相互作用。这些脂酶能引发胶束快速降解,以可控的方式释放三氯生。释放出的三氯生能有效消灭生物膜中的细菌。值得注意的是,三氯生共轭胶束对小鼠成纤维细胞的毒性极小,这表明它们具有生物兼容性和安全性。这一发现强调了这些胶束在消除细菌生物膜中的耐药性方面的潜在应用。我们的三氯生共轭脂酶响应型聚合物胶束在解决细菌生物膜的耐药性问题上表现出了良好的特性。通过利用生物薄膜的特性和实施响应式给药系统,我们试图为对抗耐药细菌提供一种有效的解决方案。
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来源期刊
Chinese Journal of Polymer Science
Chinese Journal of Polymer Science 化学-高分子科学
CiteScore
7.10
自引率
11.60%
发文量
218
审稿时长
6.0 months
期刊介绍: Chinese Journal of Polymer Science (CJPS) is a monthly journal published in English and sponsored by the Chinese Chemical Society and the Institute of Chemistry, Chinese Academy of Sciences. CJPS is edited by a distinguished Editorial Board headed by Professor Qi-Feng Zhou and supported by an International Advisory Board in which many famous active polymer scientists all over the world are included. The journal was first published in 1983 under the title Polymer Communications and has the current name since 1985. CJPS is a peer-reviewed journal dedicated to the timely publication of original research ideas and results in the field of polymer science. The issues may carry regular papers, rapid communications and notes as well as feature articles. As a leading polymer journal in China published in English, CJPS reflects the new achievements obtained in various laboratories of China, CJPS also includes papers submitted by scientists of different countries and regions outside of China, reflecting the international nature of the journal.
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