Bioengineered Nanocage from HBc Protein for Combination Cancer Immunotherapy.

Bioengineered Nanocage from HBc Protein for Combination Cancer Immunotherapy.
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用于组合癌症免疫治疗的 HBc 蛋白生物工程纳米笼

DOI:
10.1021/acs.nanolett.8b04722
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发表时间:
2019-02
期刊:
影响因子:
10.8
通讯作者:
Fu Guo
Fu Guo
中科院分区:
材料科学1区
文献类型:
--
作者:
Shan Wenjun;Zheng Haiping;Fu Guofeng;Liu Chenfeng;Li Zizhen;Ye Yuhan;Zhao Jie;Xu Dan;Sun Liping;Wang Xin;Chen Xiao Lei;Bi Shengli;Ren Lei;Fu Guo

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蛋白质纳米笼是有前途的多功能纳米医学平台,由于能够通过遗传和/或化学修饰来修饰其表面具有多种功能,以实现治疗和诊断目的所需的特性。在这里,我们描述了一种模型抗原(OVA肽),它通过遗传修饰与天然存在的B型肝炎核心蛋白纳米笼(HBc NC)的表面缀合。基因工程OVA-HBc纳米笼(OVA-HBc NCs)通过自组装形成对称结构,在有限的空间内呈现高密度的重复表位阵列,不仅能有效诱导骨髓来源的树突状细胞(BMDC)成熟,而且能在引流淋巴结中富集。用OVA-HBc NC免疫的幼稚C57 BL/6小鼠能够产生显著和特异性的细胞毒性T淋巴细胞(CTL)应答。此外,OVA-HBc NC作为一种强大的纳米疫苗可以引发预防性抗肿瘤免疫并显着延迟肿瘤生长。当与低剂量化疗药物(紫杉醇)组合时,OVA-HBc NC可以特异性抑制已建立肿瘤的进展。我们的研究结果支持HBc为基础的纳米笼与模块化和可扩展性作为一个有吸引力的纳米平台的组合癌症免疫治疗。
Protein nanocages are promising multifunctional platforms for nanomedicine owing to the ability to decorate their surfaces with multiple functionalities through genetic and/or chemical modification to achieve desired properties for therapeutic and diagnostic purposes. Here, we describe a model antigen (OVA peptide) that was conjugated to the surface of a naturally occurring hepatitis B core protein nanocage (HBc NC) by genetic modification. The engineered OVA-HBc nanocages (OVA-HBc NCs), displaying high density repetitive array of epitopes in a limited space by self-assembling into symmetrical structure, not only can induce bone marrow derived dendritic cells (BMDC) maturation effectively but also can be enriched in the draining lymph nodes. Naïve C57BL/6 mice immunized with OVA-HBc NCs are able to generate significant and specific cytotoxic T lymphocyte (CTL) responses. Moreover, OVA-HBc NCs as a robust nanovaccine can trigger preventive antitumor immunity and significantly delay tumor growth. When combined with a low-dose chemotherapy drug (paclitaxel), OVA-HBc NCs could specifically inhibit progression of an established tumor. Our findings support HBc-based nanocages with modularity and scalability as an attractive nanoplatform for combination cancer immunotherapy.
DOI: 10.1038/nrc3239
发表时间: 2012-03-22
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影响因子: --
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