Promoting the activation of T cells with glycopolymer-modified dendritic cells by enhancing cell interactions.

Promoting the activation of T cells with glycopolymer-modified dendritic cells by enhancing cell interactions.
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通过增强细胞相互作用,用糖聚合物修饰的树突状细胞促进 T 细胞的活化

DOI:
10.1126/sciadv.abb6595
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发表时间:
2020-11
期刊:
影响因子:
13.6
通讯作者:
Chen H
Chen H
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Yu L;Feng R;Zhu L;Hao Q;Chu J;Gu Y;Luo Y;Zhang Z;Chen G;Chen H

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糖聚合物工程化树突状细胞促进T细胞活化。修饰树突状细胞(DC)以增强抗原提呈是肿瘤免疫治疗中有价值的策略。除了关注DC与抗原之间的相互作用外,我们还打算通过细胞表面工程来促进DC与T细胞之间的细胞相互作用。在DC表面上修饰的合成糖共聚物的帮助下,T细胞活化得到极大改善并产生更高的肿瘤毒性,尽管单独的糖共聚物没有显示出效果。细胞图像跟踪在接触的频率和持续时间方面揭示了DC-T细胞吸引力的巨大促进。我们的研究结果提供了一种通过这些工程化的“甜DC”激活T细胞的新方法。这一策略有利于开发更有效的DC疫苗。
Sugar polymer–engineered dendritic cells promote the activation of T cells. Dendritic cell (DC) modification to enhance antigen presentation is a valuable strategy in cancer immune therapy. Other than focusing on regulating interactions between DC and antigens, we intend to promote cell interactions between DC and T cell by cell surface engineering. T cell activation is greatly improved and generates higher tumor toxicity with the aid of the synthetic glycopolymer modified on the DC surface, although the glycopolymer alone shows no effect. The great promotion of DC–T cell attraction is revealed by cell image tracking in terms of both frequency and duration of contacts. Our findings provide a new method of T cell activation by these engineered “sweet DCs.” This strategy is beneficial for developing more efficient DC-based vaccines.
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