- Gold nanoparticle-DNA aptamer-assisted delivery of antimicrobial peptide effectively inhibits Acinetobacter baumannii infection in mice
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Jaeyeong Park , Eunkyoung Shin , Ji-Hyun Yeom , Younkyung Choi , Minju Joo , Minho Lee , Je Hyeong Kim , Jeehyeon Bae , Kangseok Lee
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J. Microbiol. 2022;60(1):128-136. Published online December 29, 2021
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DOI: https://doi.org/10.1007/s12275-022-1620-3
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Abstract
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Acinetobacter baumannii causes multidrug resistance, leading
to fatal infections in humans. In this study, we showed that
Lys AB2 P3-His–a hexahistidine-tagged form of an antimicrobial
peptide (AMP) loaded onto DNA aptamer-functionalized
gold nanoparticles (AuNP-Apt)–can effectively inhibit
A. baumannii infection in mice. When A. baumannii-infected
mice were intraperitoneally injected with AuNP-Apt loaded
with Lys AB2 P3-His, a marked reduction in A. baumannii
colonization was observed in the mouse organs, leading to
prominently increased survival time and rate of the mice compared
to those of the control mice treated with AuNP-Apt or
Lys AB2 P3-His only. This study shows that AMPs loaded
onto AuNP-Apt could be an effective therapeutic tool against
infections caused by multidrug-resistant pathogenic bacteria
in humans.
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Citations
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