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Jacalin-copper sulfide nanoparticles complex enhance the antibacterial activity against drug resistant bacteria via cell surface glycan recognition.
- Source :
-
Colloids and surfaces. B, Biointerfaces [Colloids Surf B Biointerfaces] 2018 Mar 01; Vol. 163, pp. 209-217. Date of Electronic Publication: 2017 Dec 30. - Publication Year :
- 2018
-
Abstract
- In any therapeutic modality the usage of drug in high doses often leads to serious side-effects. Herein, we demonstrated a method to enhance the antibacterial efficacy of CuS NPs at lower concentration through interacting with jackfruit seed lectin, jacalin. Fluorescence quenching studies revealed that jacalin form complex with CuS NPs and the association constant was 1.91 × 10 <superscript>4</superscript> M <superscript>-1</superscript> . Upon complex with jacalin, the bacterial minimum inhibitory concentration (MIC) of CuS NPs drastically decreases from 12.5 μM to 0.78 μM. The addition of jacalin specific sugar, galactose to jacalin-CuS NPs complex (JCuS NPs) reverses the MIC from 0.78 μM to 25 μM. Mechanistic study suggests that JCuS NPs kills bacteria in part by reactive oxygen species and membrane damage, but galactose prevents the action of JCuS NPs at 0.78 μM. JCuS NPs successfully reduce (14 fold) A. hydrophila colonization in an infected zerbra fish and rescue them completely from the infection, but galJCuS NPs and CuS NPs were ineffective at 0.78 μM. Collectively, our studies demonstrates that the enhance antibacterial activity of JCuS NPs is likely due to the interaction between the galactose binding site of jacalin and the bacterial strains, as a result NPs are targeted and delivered sufficiently.<br /> (Copyright © 2017 Elsevier B.V. All rights reserved.)
- Subjects :
- Aeromonas drug effects
Animals
Cell Membrane drug effects
Escherichia coli drug effects
Humans
Kinetics
Materials Testing
Microbial Sensitivity Tests
Reactive Oxygen Species metabolism
Spectrometry, Fluorescence
Zebrafish
Anti-Bacterial Agents pharmacology
Cell Membrane metabolism
Copper pharmacology
Drug Resistance, Bacterial drug effects
Nanoparticles chemistry
Plant Lectins pharmacology
Polysaccharides metabolism
Sulfides pharmacology
Subjects
Details
- Language :
- English
- ISSN :
- 1873-4367
- Volume :
- 163
- Database :
- MEDLINE
- Journal :
- Colloids and surfaces. B, Biointerfaces
- Publication Type :
- Academic Journal
- Accession number :
- 29304435
- Full Text :
- https://doi.org/10.1016/j.colsurfb.2017.12.053