期刊
CHEMISTRYOPEN
卷 8, 期 7, 页码 915-921出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/open.201900126
关键词
dendritic cells; carbon nanotubes; antigen presentation; immunotherapy; drug delivery
资金
- National Natural Sciences Foundation of China [21401216]
- Innovation Project for Postgraduates in Jiangsu Province [KYZZ16_0419]
- Innovative Training Program for College Students [201610316029]
- Qing Lan Project in Jiangsu Province
Dendritic cells (DCs) based cancer immunotherapy is largely dependent on adequate antigen delivery and efficient induction of DCs maturation to produce sufficient antigen presentation and ultimately lead to substantial activation of tumor-specific CD8(+) T cells. Carbon nanotubes (CNTs) have attracted great attention in biomedicine because of their unique physicochemical properties. In order to effectively deliver tumor antigens to DCs and trigger a strong anti-tumor immune response, herein, a specific DCs target delivery system was assembled by using multi-walled carbon nanotubes modified with mannose which can specifically bind to the mannose receptor on DCs membrane. Ovalbumin (OVA) as a model antigen, could be adsorbed on the surface of mannose modified multi-walled carbon nanotubes (Man-MWCNTs) with a large drug loading content. This nanotube-antigen complex showed low cytotoxicity to DCs and was efficiently engulfed by DCs to induce DCs maturation and cytokine release in vitro, indicating that it could be a potent antigen-adjuvant nanovector of efficient antigen delivery for therapeutic purpose.
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