Alpha-alumina nanoparticles induce efficient autophagy-dependent cross-presentation and potent antitumour response.
Alpha-alumina nanoparticles induce efficient autophagy-dependent cross-presentation and potent antitumour response.
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DOI:
10.1038/nnano.2011.153
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发表时间:
2011-09-18
影响因子:
38.3
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中科院分区:
文献类型:
--
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Therapeutic cancer vaccination is an attractive immune therapy strategy to actively induce T cells that specifically recognize and kill tumour cells in cancer patients. However, it remains difficult to generate a large number antigen-specific T cells using conventional vaccine carrier systems. Here we show that α-Al2O3 nanoparticles can act as an antigen carrier to reduce the amount of antigen required by dendritic cells to activate T cells in vitro and in vivo. We found that α- Al2O3 nanoparticles delivered antigens to autophagosomes in dendritic cells (DCs), which then presented the antigens to T cells through autophagy – the normal degradation process of cell components in cells. Immunization of mice with α-Al2O3 nanoparticles that are conjugated to either a model tumour antigen or autophagosomes derived from tumour cells resulted in tumour regression. These results suggest that α-Al2O3 nanoparticles may be a promising adjuvant in the development of therapeutic cancer vaccines.
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影响因子:
5.8
作者:
de Gruijl, Tanja D.;van den Eertwegh, Alfons J. M.;Pinedo, Herbert M.;Scheper, Rik J.
通讯作者:
Scheper, Rik J.
影响因子:
4.4
作者:
Kratzer, Roland;Mauvais, Francois-Xavier;van Endert, Peter
通讯作者:
van Endert, Peter
影响因子:
82.9
作者:
Flach, Tracy L.;Ng, Gilbert;Shi, Yan
通讯作者:
Shi, Yan
影响因子:
7.8
作者:
Bjorkoy, Geir;Lamark, Trond;Brech, Andreas;Outzen, Heidi;Perander, Maria;Overvatn, Aud;Stenmark, Harald;Johansen, Terje
通讯作者:
Johansen, Terje
影响因子:
30.5
作者:
Pulendran B;Ahmed R
通讯作者:
Ahmed R