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
Han S
中科院分区:
化学1区
文献类型:
--
作者:
Lin B;Wu X;Zhao H;Tian Y;Han J;Liu J;Han S

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抗肿瘤免疫是通过在肿瘤表面糖萼上代谢掺入非自身抗原标记的唾液酸来实现的。引发抗肿瘤免疫的技术对于免疫疗法是感兴趣的。我们在此报道了通过用2,4-二硝基苯基化唾液酸(DNPSia)进行代谢寡糖工程将非自身免疫原共价掺入肿瘤糖萼中。这使得能够在预先免疫以产生抗DNP抗体的小鼠中显著抑制B16 F10黑色素瘤细胞的肺转移和皮下肿瘤生长。DNPSia位于外部糖萼上,能够很好地募集抗体。鉴于人体中天然抗DNP抗体的高水平和许多癌症中普遍存在的唾液酸化,DNPSia提供了一种简化的途径来重定向针对不同肿瘤的免疫力,而无需求助于预免疫。
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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发表时间: 1976-01-01
影响因子: 5.4
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