多糖与抗菌肽的结合及相关应用研究进展

    Progress on the combinations of polysaccharides and antimicrobial peptides and the relevant applications

    • 摘要: 抗菌肽是一类有望可以替代传统抗生素的生物大分子,其来源广泛,抗菌性能优异且不容易引起细菌耐药性,但抗菌肽具有容易被降解、抗菌性能不稳定等缺陷,在实际应用中需要通过与大分子结合进行改善。多糖与抗菌肽结合不仅能增强其稳定性,降低毒性,还可以赋予抗菌肽其他功能活性。多糖凝胶可以和抗菌肽共混,形成的共混物能形成水凝胶、微颗粒、膜等不同的结构;部分负离子多糖可以和阳离子抗菌肽发生离子共聚,形成共聚水凝胶或微颗粒;多糖和抗菌肽还能在反应助剂的作用下发生酰胺化、美拉德或者“Click”反应从而实现接枝。对相关的研究进展进行了综述,并展望了该领域未来的可研究方向。

       

      Abstract: Antimicrobial peptides, as a promising substitute for traditional antibiotics, have diverse resources, high antimicrobial effects and low probability to cause bacterial resistance.However, antimicrobial peptides are easy to be degraded and not stable in antimicrobial properties, which must be improved by incorporating with macromolecules.Not only increase the stability and lower the cytotoxicity, combining with polysaccharides could also endow antimicrobial peptides with more functions.Polysaccharides gel could be mixed with antimicrobial peptides, forming into hydrogels, microparticles, membranes, etc.; copolymerization of some anionic polysaccharides and cationic antimicrobial peptides could form into copolymerized hydrogels or microparticles.Moreover, some polysaccharides could also be grafted with antimicrobial peptides through amidation, maillard or “Click” reactions aided with reaction auxiliaries.In this review, related studies in recent years were summarized and future research directions were discussed.

       

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