Acidification-Induced Structure Evolution of Lipid Nanoparticles Correlates with Their In Vitro Gene Transfections.
Acidification-Induced Structure Evolution of Lipid Nanoparticles Correlates with Their In Vitro Gene Transfections.
复制标题
酸化诱导的脂质纳米颗粒的结构演变与其体外基因转染相关。
DOI:
10.1021/acsnano.2c06213
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发表时间:
2023-01-06
期刊:
影响因子:
17.1
通讯作者:
Lu, Jian Ren
中科院分区:
文献类型:
--
作者:
Li, Zongyi;Carter, Jessica;Santos, Luis;Webster, Carl;Walle, Christopher F. van der;Li, Peixun;Rogers, Sarah E.;Lu, Jian Ren
关键词:
The rational design of lipid nanoparticles (LNPs) for enhanced gene delivery remains challenging because of incomplete knowledge of their formulation–structure relationship that impacts their intracellular behavior and consequent function. Small-angle neutron scattering has been used in this work to investigate the structure of LNPs encapsulating plasmid DNA upon their acidification (from pH 7.4 to 4.0), as would be encountered during endocytosis. The results revealed the acidification-induced structure evolution (AISE) of the LNPs on different dimension scales, involving protonation of the ionizable lipid, volume expansion and redistribution of aqueous and lipid components. A similarity analysis using an LNP’s structural feature space showed a strong positive correlation between function (measured by intracellular luciferase expression) and the extent of AISE, which was further enhanced by the fraction of unsaturated helper lipid. Our findings reveal molecular and nanoscale changes occurring during AISE that underpin the LNPs’ formulation–nanostructure–function relationship, aiding the rational design of application-directed gene delivery vehicles.
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DOI:
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发表时间:
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期刊:
Nature reviews. Materials
影响因子:
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作者:
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DOI:
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发表时间:
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期刊:
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影响因子:
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通讯作者:
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通讯作者:
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影响因子:
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作者:
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通讯作者:
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