Journal Article

Mesoporous silica nanoparticles co-loaded with lysozyme and vancomycin for synergistic antimicrobial action

Nayeri Fasaei, Bahar, Joghataei, Seyed Mehdi, Shariati, Parvin, Arpanaei, Ayyoob, Namdar, Nasrin

2024

Overview

Nanotechnology offers a novel strategy for enhancing the susceptibility of pathogens resistant to traditional antibiotics. Another effective strategy is combination therapy, where multiple agents are used together to improve treatment efficacy. In this study, both nanoparticle-based formulation and combinatorial therapy were utilized to develop a potent antibacterial system targeting infectious bacteria. Lysozyme (Lys) and Vancomycin (Van) were co-loaded onto mesoporous silica nanoparticles (MSNs), forming Lys-Van-MSNs. The antimicrobial activity of these nanoparticles was evaluated by determining the minimum inhibitory concentration (MIC) against Staphylococcus aureus . The MIC values for Lys-Van-MSNs were 0.85 µg/ml for Van and 0.168 mg/ml for Lys, reflecting reductions of 86.4% and 93.7%, respectively, compared to the free forms. Additionally, cytotoxicity was tested using MTT, ROS, and hemolysis assays on human cell lines (breast, fibroblast, and AGS), showing over 80% cell viability, indicating minimal toxicity. The MSN-based formulation, with its synergistic antibacterial effects, reduced drug dosage, and high biocompatibility, offers a practical and effective solution for addressing bacterial infections.

• Publisher: Nature Publishing Group UK,Nature Publishing Group,Nature Portfolio
• Subject: 631/326 / 631/326/22 / 631/326/22/1290 / 631/326/22/1294 / 631/326/22/1434 / 631/326/41 / 639/925 / 639/925/350 / 639/925/352 / 639/925/352/152 / Anti-Bacterial Agents - administration & dosage / Anti-Bacterial Agents - chemistry / Anti-Bacterial Agents - pharmacology / Antibacterial activity / Antibiotics / Antimicrobial activity / Antimicrobial agents / Bacterial diseases / Biocompatibility / Cell Line / Cell lines / Cell Survival - drug effects / Cell viability / Combination therapy / Cytotoxicity / Drug Carriers - chemistry / Drug Synergism / Hemolysis - drug effects / Humanities and Social Sciences / Humans / Lysozyme / Microbial Sensitivity Tests / Minimum inhibitory concentration / MSNs / multidisciplinary / Muramidase - pharmacology / Nanoparticles / Nanoparticles - chemistry / Nanotechnology / Porosity / Science / Science (multidisciplinary) / Silica / Silicon Dioxide - chemistry / Staphylococcus aureus - drug effects / Vancomycin / Vancomycin - administration & dosage / Vancomycin - chemistry / Vancomycin - pharmacology