Conformation-sensitive targeting of lipid nanoparticles for RNA therapeutics.

Conformation-sensitive targeting of lipid nanoparticles for RNA therapeutics.
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用于 RNA 治疗的脂质纳米粒子的构象敏感靶向。

DOI:
10.1038/s41565-021-00928-x
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发表时间:
2021-09
影响因子:
38.3
通讯作者:
Peer D
Peer D
中科院分区:
材料科学1区
文献类型:
--
作者:
Dammes N;Goldsmith M;Ramishetti S;Dearling JLJ;Veiga N;Packard AB;Peer D

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基因表达调节策略的成功体内实施依赖于有效的、非免疫原性的递送载体。脂质纳米粒(LNP)是最先进的、临床上批准的非病毒核酸递送系统之一。然而,LNP在静脉内给药后在肝细胞中自然积累,因此迫切需要增强其他细胞类型的摄取。在这里,我们使用构象敏感的靶向策略,以实现在体内的白细胞的选择性子集的基因沉默,并显示在结肠炎的小鼠模型的潜在治疗应用。特别是,通过靶向α4β7整联蛋白的高亲和力(HA)构象(这是炎症性肠道归巢白细胞的标志),我们沉默了肠道中的干扰素γ,从而改善了实验性结肠炎的治疗效果。LNP不诱导不良免疫激活或肝毒性。这些结果表明,我们的LNP靶向策略可能适用于选择性递送有效载荷到其他构象敏感的目标。
The successful in vivo implementation of gene expression modulation strategies relies on effective, non-immunogenic delivery vehicles. Lipid nanoparticles (LNPs) are one of the most advanced, non-viral clinically approved nucleic-acid delivery systems. Yet, LNPs accumulate naturally in liver cells upon intravenous administration and hence there is an urgent need to enhance uptake by other cell types. Here we use a conformation-sensitive targeting strategy to achieve in vivo gene silencing in a selective subset of leukocytes and show potential therapeutic applications in a murine model of colitis. In particular, by targeting the high-affinity (HA) conformation of α4β7 integrin, which is a hallmark of inflammatory, gut-homing leukocytes, we silenced interferon γ in the gut resulting in an improved therapeutic outcome in experimental colitis. The LNPs did not induce adverse immune activation or liver toxicity. These results suggests that our LNP targeting strategy might be applied for selective delivery of payloads to other conformation-sensitive targets.
DOI: 10.1126/science.1149859
发表时间: 2008-02-01
期刊: SCIENCE
影响因子: 56.9
作者:
Peer, Dan;Park, Eun Jeong;Shimaoka, Motomu
通讯作者: Shimaoka, Motomu
DOI: 10.1097/mib.0000000000000677
发表时间: 2016-03-01
影响因子: 4.9
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发表时间: 2015-07-01
期刊: ACS NANO
影响因子: 17.1
作者:
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通讯作者: Peer, Dan
DOI: 10.1016/j.crohns.2013.08.002
发表时间: 2014-02-01
影响因子: 8
作者:
Holgersen, Kristine;Kvist, Peter Helding;Holm, Thomas Lindebo
通讯作者: Holm, Thomas Lindebo