Cited by 1,261RNA Interference and Gene DeliveryNanoparticle-Based Drug DeliveryInhalation and Respiratory Drug Delivery

The DOI matches its Crossref record; 31 of the 32 references it cites were found in a registry or an index.

Targeted Delivery of RNAi Therapeutics With Endogenous and Exogenous Ligand-Based Mechanisms

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Abstract

Lipid nanoparticles (LNPs) have proven to be highly efficient carriers of short-interfering RNAs (siRNAs) to hepatocytes in vivo; however, the precise mechanism by which this efficient delivery occurs has yet to be elucidated. We found that apolipoprotein E (apoE), which plays a major role in the clearance and hepatocellular uptake of physiological lipoproteins, also acts as an endogenous targeting ligand for ionizable LNPs (iLNPs), but not cationic LNPs (cLNPs). The role of apoE was investigated using both in vitro studies employing recombinant apoE and in vivo studies in wild-type and apoE(-/-) mice. Receptor dependence was explored in vitro and in vivo using low-density lipoprotein receptor (LDLR(-/-))-deficient mice. As an alternative to endogenous apoE-based targeting, we developed a targeting approach using an exogenous ligand containing a multivalent N-acetylgalactosamine (GalNAc)-cluster, which binds with high affinity to the asialoglycoprotein receptor (ASGPR) expressed on hepatocytes. Both apoE-based endogenous and GalNAc-based exogenous targeting appear to be highly effective strategies for the delivery of iLNPs to liver.

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Crossref · 10.1038/mt.2010.85

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  1. Immordino, 2006, Stealth liposomes: review of the basic science, rationale, and clinical applications, existing and potential, Int J Nanomedicine, 1, 297

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Metadata

Authors
Akinc, A., Querbes, W., De, S., Qin, J., Frank-Kamenetsky, M., Jayaprakash, K. N., Jayaraman, M., Rajeev, K. G., Cantley, W. L., Dorkin, J. R., Butler, J. S., Qin, L., Racie, T., Sprague, A., Fava, E., Zeigerer, A., Hope, M. J., Zerial, M., Sah, D. W., Fitzgerald, K., Tracy, M. A., Manoharan, M., Koteliansky, V., Fougerolles, A. D., & Maier, M. A.
Affiliations
  • Alnylam Pharmaceuticals (United States) (US)
  • Max Planck Institute of Molecular Cell Biology and Genetics (DE)
Corresponding author
Akinc, Akin
Venue
Molecular Therapy
Publisher
Elsevier BV
Published
2010-07
Volume
18
Issue
7
Pages
1357-1364
ISSN
1525-0016 (ISSN-L)
OpenAlex
W2143743183
Cited by
1,261
References
32
Citations by year
2026: 147 · 2025: 141 · 2024: 164 · 2023: 129 · 2022: 120 · 2021: 83 · 2020: 72 · 2019: 63 · 2018: 39 · 2017: 41 · 2016: 47 · 2015: 46 · 2014: 51 · 2013: 46 · 2012: 44
FWCI
15.10
Type
journal article
Language
en
Open access
Locations
  • Molecular Therapy (publishedVersion, cc-by-nc-nd)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Max Planck Institute for Plasma Physics (submittedVersion)
  • MPG.PuRe (Max Planck Society) (submittedVersion)
Funders
Alnylam Pharmaceuticals
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Interference and Gene Delivery
  • Physical Sciences › Materials Science › Biomaterials › Nanoparticle-Based Drug Delivery
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Inhalation and Respiratory Drug Delivery
Keywords
RNAi therapeutics, lipid nanoparticles, apolipoprotein E, N-acetylgalactosamine, asialoglycoprotein receptor, hepatocyte targeting, LDL receptor, nanoparticle clearance
MeSH terms
Animals, Apolipoproteins E, Female, HeLa Cells, Humans, Ligands, Mice, Inbred C57BL, Receptors, LDL, Hepatocytes, RNA Interference, Asialoglycoprotein Receptor, Mice, Nanoparticles

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