Cited by 209RNA Interference and Gene DeliveryNanoparticle-Based Drug DeliveryAdvancements in Transdermal Drug Delivery

Evaluation of Efficacy, Biodistribution, and Inflammation for a Potent siRNA Nanoparticle: Effect of Dexamethasone Co-treatment

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Abrams, Marc T, Koser, Martin L, Seitzer, Jessica, Williams, Stephanie C, DiPietro, Martha A, Wang, Weimin, Shaw, Andrew W, Mao, Xianzhi +6 more·2010·Molecular Therapy

Abstract

Despite recent progress, systemic delivery remains the major hurdle for development of safe and effective small inhibitory RNA (siRNA)-based therapeutics. Encapsulation of siRNA into liposomes is a promising option to overcome obstacles such as low stability in serum and inefficient internalization by target cells. However, a major liability of liposomes is the potential to induce an acute inflammatory response, thereby increasing the risk of numerous adverse effects. In this study, we characterized a liposomal siRNA delivery vehicle, LNP201, which is capable of silencing an mRNA target in mouse liver by over 80%. The biodistribution profile, efficacy after single and multiple doses, mechanism of action, and inflammatory toxicity are characterized for LNP201. Furthermore, we demonstrate that the glucocorticoid receptor (GR) agonist dexamethasone (Dex) inhibits LNP201-induced cytokine release, inflammatory gene induction, and mitogen-activated protein kinase (MAPK) phosphorylation in multiple tissues. These data present a possible clinical strategy for increasing the safety profile of siRNA-based drugs while maintaining the potency of gene silencing.

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Crossref · 10.1038/mt.2009.208

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  • Cationic and ionizable lipids have been reported to stimulate the secretion of pro-inflammatory cytokines and reactive oxygen species.

    “Cationic and ionizable lipids have also been reported to stimulate the secretion of pro-inflammatory cytokines and reactive oxygen species170–173.”

    From Lipid nanoparticles for mRNA delivery (2021) · cites this paper as [172]

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Authors
Abrams, M. T., Koser, M. L., Seitzer, J., Williams, S. C., DiPietro, M. A., Wang, W., Shaw, A. W., Mao, X., Jadhav, V., Davide, J. P., Burke, P. A., Sachs, A. B., Stirdivant, S. M., & Sepp-Lorenzino, L.
Affiliations
Merck & Co., Inc., Rahway, NJ, USA (United States) (US)
Corresponding author
Abrams, Marc T
Venue
Molecular Therapy
Publisher
Elsevier BV
Published
2010-01
Volume
18
Issue
1
Pages
171-180
ISSN
1525-0016 (ISSN-L)
OpenAlex
W2059355578
Cited by
209
References
51
Citations by year
2026: 10 · 2025: 16 · 2024: 16 · 2023: 10 · 2022: 19 · 2021: 14 · 2020: 7 · 2019: 17 · 2018: 8 · 2017: 6 · 2016: 8 · 2015: 12 · 2014: 17 · 2013: 15 · 2012: 10
FWCI
4.56
Type
journal article
Language
en
Open access
Locations
  • Molecular Therapy (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Interference and Gene Delivery
  • Physical Sciences › Materials Science › Biomaterials › Nanoparticle-Based Drug Delivery
  • Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Pharmaceutical Science › Advancements in Transdermal Drug Delivery
Keywords
siRNA delivery, lipid nanoparticles, dexamethasone, glucocorticoid receptor, inflammation, tissue distribution, systemic drug delivery, cytokine production, MAPK phosphorylation, gene silencing
MeSH terms
Animals, Dexamethasone, Female, Inflammation, Receptors, Glucocorticoid, Gene Silencing, RNA, Small Interfering, Mice, Nanoparticles

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