Nanoparticle-detained toxins for safe and effective vaccination.
Nanoparticle-detained toxins for safe and effective vaccination.
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DOI:
10.1038/nnano.2013.254
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发表时间:
2013-12
影响因子:
38.3
通讯作者:
中科院分区:
文献类型:
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Toxoid vaccines—vaccines based on inactivated bacterial toxins— are routinely used to promote antitoxin immunity for the treatment and prevention of bacterial infections. Following chemical or heat denaturation, inactivated toxins can be administered to mount toxin-specific immune responses. However, retaining faithful antigenic presentation while removing toxin virulence remains a major challenge and presents a trade-off between efficacy and safety in toxoid development. Here we show a nanoparticle-based toxin-detainment strategy that safely delivers non-disrupted pore-forming toxins for immune processing. Using erythrocyte membrane-coated nanoparticles and staphylococcal α-haemolysin, we demonstrate effective virulence neutralization via spontaneous particle entrapment. As compared to vaccination with heat-denatured toxin, mice vaccinated with the nanoparticle-detained toxin showed superior protective immunity against toxin adverse effects. We find that the non-disruptive detoxification approach benefited the immunogenicity and efficacy of toxoid vaccines. We anticipate the reported study to open new possibilities in the preparation of antitoxin vaccines against the many virulence factors that threaten public health.
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DOI:
10.1073/pnas.1112648109
发表时间:
2012-01-24
影响因子:
11.1
作者:
Moon, James J.;Suh, Heikyung;Irvine, Darrell J.
通讯作者:
Irvine, Darrell J.
影响因子:
38.3
作者:
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影响因子:
3.5
作者:
SKEAN, JD;OVERCAST, WW
通讯作者:
OVERCAST, WW
影响因子:
5.4
作者:
Sun, Caijun;Feng, Liqiang;Chen, Ling
通讯作者:
Chen, Ling
影响因子:
38.3
作者:
通讯作者:
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