Enhanced inhibition of bacterial biofilm formation and reduced leukocyte toxicity by chloramphenicol:β-cyclodextrin:N-acetylcysteine complex

被引:35
作者
Aiassa, Virginia [1 ,2 ]
Zoppi, Ariana [1 ,2 ]
Becerra, M. Cecilia [1 ,3 ]
Albesa, Ines [1 ,3 ]
Longhi, Marcela R. [1 ,2 ]
机构
[1] Univ Nacl Cordoba, Fac Ciencias Quim, Dept Farm, Cordoba, Argentina
[2] Univ Nacl Cordoba, CONICET, Unidad Invest & Desarrollo Tecnol Farmaceut UNITE, Cordoba, Argentina
[3] Univ Nacl Cordoba, CONICET, Inst Multidisciplinario Biol Vegetal IMBIV, Cordoba, Argentina
关键词
Chloramphenicol; beta-Cyclodextrin; N-Acetylcysteine; Solubility; Toxicity; Microbiological activity; N-ACETYLCYSTEINE; CLARITHROMYCIN; SOLUBILITY; RESISTANCE;
D O I
10.1016/j.carbpol.2016.07.013
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
The purpose of this study was to improve the physicochemical and biological properties of chloramphenicol (CP) by multicomponent complexation with beta-cyclodextrin (beta-CD) and N-acetylcysteine (NAC). The present work describes the ability of solid multicomponent complex (MC) to decrease biomass and cellular activity of Staphylococcus by crystal violet and XTT assay, and leukocyte toxicity, measuring the increase of reactive oxygen species by chemiluminescence, and using 123-dihydrorhodamine. In addition, MC was prepared by the freeze-drying or physical mixture methods, and then characterized by scanning electron microscopy and powder X-ray diffraction. Nuclear magnetic resonance and phase solubility studies provided information at the molecular level on the structure of the MC and its association binding constants, respectively. The results obtained allowed us to conclude that MC formation is an effective pharmaceutical strategy that can reduce CP toxicity against leukocytes, while enhancing its solubility and antibiofilm activity. (C) 2016 Published by Elsevier Ltd.
引用
收藏
页码:672 / 678
页数:7
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