Two dimensional nanosheets as immunoregulator improve HIV vaccine efficacy.

Two dimensional nanosheets as immunoregulator improve HIV vaccine efficacy.
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二维纳米片作为免疫调节剂提高艾滋病毒疫苗功效

DOI:
10.1039/d1sc04044h
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发表时间:
2021-12-22
期刊:
影响因子:
8.4
通讯作者:
Jiang X
Jiang X
中科院分区:
化学1区
文献类型:
--
作者:
Liu Y;Balachandran YL;Li Z;Cong Y;Shao Y;Jiang X

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二维纳米片作为药物载体在药物表面展示和药物负载方面具有广阔的应用前景。然而,迄今为止,将片状材料本身开发成免疫调节剂从未实现。在这项研究中,我们利用稀土元素本身的免疫调节作用,开发了水溶性铒-镝2D纳米片(2D NS)。这种2D NS可以靶向淋巴结并激活巨噬细胞,以显著提高小鼠中的疫苗效力。转录组分析进一步揭示了6个关键分子(Msr 1、Ccr 2、Serpinb 9、Klrk 1、Klrd 1、Klrc 1)与2D NS介导的体内免疫调节密切相关。本工作首次实现了设计免疫调节2D NS的概念验证,并显示了2D NS用于改善疫苗的免疫预防/免疫治疗的潜力。2D NS靶向淋巴结并激活巨噬细胞,通过调节六个关键基因(Ccr 2,Serpinb 9,Klrk 1,Klrd 1,Klrc 1,Msr 1)来增强疫苗诱导的免疫应答。
Two-dimensional (2D) nanosheets as carriers have shown promising potential for surface-displaying or loading various drugs. Nevertheless, developing sheet-like materials themselves into an immunoregulator has never been realized so far. In this study, we take advantage of the immunoregulatory effects of rare earth elements themselves and develop water-soluble erbium–dysprosium 2D nanosheets (2D NSs). Such 2D NSs can target lymph nodes and activate macrophages to improve vaccine efficacy in mice significantly. Transcriptome analysis further reveals that six critical molecules (Msr1, Ccr2, Serpinb9, Klrk1, Klrd1, Klrc1) closely correlate with 2D NS-mediated immunoregulation in vivo. For the first time, the present work realizes a proof-of-concept for designing immunoregulatory 2D NSs and shows a promising potential of 2D NSs for improving the immunoprophylaxis/immunotherapy of vaccines. 2D NSs target lymph nodes and activate macrophages to enhance vaccine-induced immune responses via regulating six critical genes (Ccr2, Serpinb9, Klrk1, Klrd1, Klrc1, Msr1).
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