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Self-Defensive Biomaterial Coating Against Bacteria and Yeasts: Polysaccharide Multilayer Film with Embedded Antimicrobial Peptide

机译:细菌和酵母的自防御生物材料涂层:嵌入抗菌肽的多糖多层膜

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摘要

Prevention of pathogen colonization of medical implants is a major medical and financial issue since infection by microorganisms constitutes one of the most serious complications after surgery or critical care. Immobilization of antimicrobial molecules on biomaterials surfaces is an efficient approach to prevent biofilm formation. Herein, the first self-defensive coating against both bacteria and yeasts is reported, where the release of the antimicrobial peptide is triggered by enzymatic degradation of the film due to the pathogens themselves. Biocompatible and biodegradable polysaccharide multilayer films based on functionalized hyaluronic acid by cateslytin (CTL), an endogenous host-defensive antimicrobial peptide, and chitosan (HA-CTL-C/CHI) are deposited on a planar surface with the aim of designing both antibacterial and antifungal coating. After 24 h of incubation, HA-CTL-C/CHI films fully inhibit the development of Gram-positive Staphylococcus aureus bacteria and Candida albicans yeasts, which are common and virulent pathogens agents encountered in care-associated diseases. Hyaluronidase, secreted by the pathogens, leads to the film degradation and the antimicrobial action of the peptide. Furthermore, the limited fibroblasts adhesion, without cytotoxicity, on HA-CTL-C/CHI films highlights a medically relevant application to prevent infections on catheters or tracheal tubes where fibrous tissue encapsulation is undesirable.
机译:预防医学植入物的病原体定植是主要的医学和财务问题,因为微生物感染是手术或重症监护后最严重的并发症之一。将抗菌剂分子固定在生物材料表面是防止生物膜形成的有效方法。在此,报道了针对细菌和酵母的第一个自防御涂层,其中由于病原体自身引起的膜的酶促降解触发了抗菌肽的释放。以功能化的透明质酸为基础的生物相容性和可生物降解的多糖多层膜,其由Cateslytin(CTL),一种内源性宿主防御性抗菌肽和壳聚糖(HA-CTL-C / CHI)沉积在平面表面上,旨在设计抗菌性和抗菌性。抗真菌涂层。温育24小时后,HA-CTL-C / CHI膜完全抑制革兰氏阳性金黄色葡萄球菌细菌和白色念珠菌酵母的发展,它们是与护理有关的疾病中常见的致病性病原体。病原体分泌的透明质酸酶导致膜降解和肽的抗菌作用。此外,在HA-CTL-C / CHI膜上有限的成纤维细胞粘附力而无细胞毒性突出了医学上的相关应用,以防止导管或气管导管感染,而在导管或气管导管中不希望有纤维组织包裹。

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  • 来源
    《Advanced Functional Materials》 |2013年第38期|4801-4809|共9页
  • 作者单位

    Centre National de la Recherche Scientifique Institut Charles Sadron UPR 22, 23 rue du Loess,67034 Strasbourg Cedex 2, France;

    Institut National de la Sante et de la Recherche Medicale INSERM UMR 1121, 11 rue Humann, 67085 Strasbourg Cedex, France Universite de Strasbourg Faculte de Chirurgie Dentaire 1 place de I'Hopital, 67000 Strasbourg, France;

    Centre National de la Recherche Scientifique Institut Charles Sadron UPR 22, 23 rue du Loess,67034 Strasbourg Cedex 2, France;

    Centre National de la Recherche Scientifique Institut Charles Sadron UPR 22, 23 rue du Loess,67034 Strasbourg Cedex 2, France;

    Institut National de la Sante et de la Recherche Medicale INSERM UMR 1121, 11 rue Humann, 67085 Strasbourg Cedex, France Universite de Strasbourg Faculte de Chirurgie Dentaire 1 place de I'Hopital, 67000 Strasbourg, France;

    Centre National de la Recherche Scientifique Institut Charles Sadron UPR 22, 23 rue du Loess,67034 Strasbourg Cedex 2, France;

    Institut National de la Sante et de la Recherche Medicale INSERM UMR 1121, 11 rue Humann, 67085 Strasbourg Cedex, France Universite de Strasbourg Faculte de Chirurgie Dentaire 1 place de I'Hopital, 67000 Strasbourg, France;

    Institut National de la Sante et de la Recherche Medicale INSERM UMR 1121, 11 rue Humann, 67085 Strasbourg Cedex, France Universite de Strasbourg Faculte de Chirurgie Dentaire 1 place de I'Hopital, 67000 Strasbourg, France;

    Institut National de la Sante et de la Recherche Medicale INSERM UMR 1121, 11 rue Humann, 67085 Strasbourg Cedex, France Universite de Strasbourg Faculte de Chirurgie Dentaire 1 place de I'Hopital, 67000 Strasbourg, France;

    Service de Reanimation Medicale Hopital de Hautepierre Hopitaux Universitaires de Strasbourg 1 avenue Moliere, 67098 Strasbourg Cedex, France;

    Centre National de la Recherche Scientifique Institut Charles Sadron UPR 22, 23 rue du Loess,67034 Strasbourg Cedex 2, France;

    Centre National de la Recherche Scientifique Institut Charles Sadron UPR 22, 23 rue du Loess,67034 Strasbourg Cedex 2, France,Universite de Strasbourg Ecole Europeenne de Chimie Polymeres et Materiaux 25 rue Becquerel, 67087 Strasbourg Cedex 2, France,International Center for Frontier Research in Chemistry 8 allee Gaspard Monge, 67083 Strasbourg, France;

    Centre National de la Recherche Scientifique Institut Charles Sadron UPR 22, 23 rue du Loess,67034 Strasbourg Cedex 2, France,Institut National de la Sante et de la Recherche Medicale INSERM UMR 1121, 11 rue Humann, 67085 Strasbourg Cedex, France Universite de Strasbourg Faculte de Chirurgie Dentaire 1 place de I'Hopital, 67000 Strasbourg, France,Universite de Strasbourg Ecole Europeenne de Chimie Polymeres et Materiaux 25 rue Becquerel, 67087 Strasbourg Cedex 2, France,International Center for Frontier Research in Chemistry 8 allee Gaspard Monge, 67083 Strasbourg, France,Institut Universitaire de France 103 boulevard Saint-Michel, 75005 Paris, France;

    EA 4691, Universite de Reims Champagne Ardenne SFR-CapSante, 1 avenue du Marechal Juin 51100 Reims, France;

    Institut National de la Sante et de la Recherche Medicale INSERM UMR 1121, 11 rue Humann, 67085 Strasbourg Cedex, France Universite de Strasbourg Faculte de Chirurgie Dentaire 1 place de I'Hopital, 67000 Strasbourg, France;

    Centre National de la Recherche Scientifique Institut Charles Sadron UPR 22, 23 rue du Loess,67034 Strasbourg Cedex 2, France,International Center for Frontier Research in Chemistry 8 allee Gaspard Monge, 67083 Strasbourg, France;

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