{"title":"Niosome-loaded Tet-Amp against S. aureus, K. pneumoniae, and P. aeruginosa.","authors":"Elham Bazargan, Fatemeh Ashrafi, Elham Siasi Torbati","doi":"10.1007/s42770-024-01516-6","DOIUrl":null,"url":null,"abstract":"<p><p>Biofilm-associated disorders contribute to elevated morbidity and death rates among patients. We propose synthesizing niosomal structures containing the antibiotics tetracycline and ampicillin ((Tet/Amp)-Nio) and investigating their impact on standard strains of S. aureus, K. pneumoniae, and P. aeruginosa. The antibacterial and anti-biofilm effects of synthesized niosomes against standard pathogenic bacterial strains were studied, and also its cytotoxic activity was investigated against human foreskin fibroblast (HFF) cell line. The optimal formulation (F2) had an average particle size of 196.90 ± 4.57 nm, a PDI of 0.223 ± 0.013, a Zeta-potential of -19.25 ± 1.19 mV, a %EE of 70.92 ± 1.75% for Tet and 58.34 ± 1.85% for Amp, and a %Release rate of 49.34 ± 1.78% for Tet and 62.67 ± 1.19% for Amp. The release of Tet and Amp drugs over 48 h was 47% and 61%, respectively, from the (Tet/Amp)-Nio formulation. Also, our findings demonstrated that the Tet/Amp)-Nio have potent antibacterial, anti-biofilm, and lower cytotoxic activity compared to the Tet + Amp. In addition, (Tet/Amp)-Nio can upregulate the expression level of matrix metallopeptidase 2 (MMP2) and matrix metallopeptidase 9 (MMP9) genes, which shows their great activity in the wound healing process. The findings of the current investigation suggest that (Tet/Amp)-Nio enhances its antibacterial and antibiofilm effects against S. aureus, P. aeruginosa, and K. pneumoniae isolates. These formulations may serve as a novel approach for targeted drug delivery.</p>","PeriodicalId":9090,"journal":{"name":"Brazilian Journal of Microbiology","volume":null,"pages":null},"PeriodicalIF":2.1000,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Brazilian Journal of Microbiology","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1007/s42770-024-01516-6","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MICROBIOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Biofilm-associated disorders contribute to elevated morbidity and death rates among patients. We propose synthesizing niosomal structures containing the antibiotics tetracycline and ampicillin ((Tet/Amp)-Nio) and investigating their impact on standard strains of S. aureus, K. pneumoniae, and P. aeruginosa. The antibacterial and anti-biofilm effects of synthesized niosomes against standard pathogenic bacterial strains were studied, and also its cytotoxic activity was investigated against human foreskin fibroblast (HFF) cell line. The optimal formulation (F2) had an average particle size of 196.90 ± 4.57 nm, a PDI of 0.223 ± 0.013, a Zeta-potential of -19.25 ± 1.19 mV, a %EE of 70.92 ± 1.75% for Tet and 58.34 ± 1.85% for Amp, and a %Release rate of 49.34 ± 1.78% for Tet and 62.67 ± 1.19% for Amp. The release of Tet and Amp drugs over 48 h was 47% and 61%, respectively, from the (Tet/Amp)-Nio formulation. Also, our findings demonstrated that the Tet/Amp)-Nio have potent antibacterial, anti-biofilm, and lower cytotoxic activity compared to the Tet + Amp. In addition, (Tet/Amp)-Nio can upregulate the expression level of matrix metallopeptidase 2 (MMP2) and matrix metallopeptidase 9 (MMP9) genes, which shows their great activity in the wound healing process. The findings of the current investigation suggest that (Tet/Amp)-Nio enhances its antibacterial and antibiofilm effects against S. aureus, P. aeruginosa, and K. pneumoniae isolates. These formulations may serve as a novel approach for targeted drug delivery.
期刊介绍:
The Brazilian Journal of Microbiology is an international peer reviewed journal that covers a wide-range of research on fundamental and applied aspects of microbiology.
The journal considers for publication original research articles, short communications, reviews, and letters to the editor, that may be submitted to the following sections: Biotechnology and Industrial Microbiology, Food Microbiology, Bacterial and Fungal Pathogenesis, Clinical Microbiology, Environmental Microbiology, Veterinary Microbiology, Fungal and Bacterial Physiology, Bacterial, Fungal and Virus Molecular Biology, Education in Microbiology. For more details on each section, please check out the instructions for authors.
The journal is the official publication of the Brazilian Society of Microbiology and currently publishes 4 issues per year.