Redirecting immunity via covalently incorporated immunogenic sialic acid on the tumor cell surface.
Redirecting immunity via covalently incorporated immunogenic sialic acid on the tumor cell surface.
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通过在肿瘤细胞表面共价结合免疫原性唾液酸来重定向免疫
DOI:
10.1039/c5sc04133c
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发表时间:
2016-06-01
期刊:
影响因子:
8.4
通讯作者:
Han S
中科院分区:
文献类型:
--
作者:
Lin B;Wu X;Zhao H;Tian Y;Han J;Liu J;Han S
Anti-tumor immunity was achieved via metabolically incorporated non-self antigen-labelled sialic acid on the tumor surface glycocalyx. Techniques eliciting anti-tumor immunity are of interest for immunotherapy. We herein report the covalent incorporation of a non-self immunogen into the tumor glycocalyx by metabolic oligosaccharide engineering with 2,4-dinitrophenylated sialic acid (DNPSia). This enables marked suppression of pulmonary metastasis and subcutaneous tumor growth of B16F10 melanoma cells in mice preimmunized to produce anti-DNP antibodies. Located on the exterior glycocalyx, DNPSia is well-positioned to recruit antibodies. Given the high levels of natural anti-DNP antibodies in humans and ubiquitous sialylation across many cancers, DNPSia offers a simplified route to redirect immunity against diverse tumors without recourse to preimmunization.
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