Cited by 125RNA Interference and Gene DeliveryAdvanced Drug Delivery SystemsNanoparticle-Based Drug Delivery

Intranasal brain delivery of cationic nanoemulsion-encapsulated TNFα siRNA in prevention of experimental neuroinflammation

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Yadav, Sunita, Gandham, Srujan K., Panicucci, Riccardo, Amiji, Mansoor M.·2016·Nanomedicine: Nanotechnology, Biology and Medicine

Abstract

Neuroinflammation is a hallmark of acute and chronic neurodegenerative disorders. The main aim of this study was to evaluate the therapeutic efficacy of intranasal cationic nanoemulsion encapsulating an anti-TNFα siRNA, for potential anti-inflammatory therapy. TNFα siRNA nanoemulsions were prepared and characterized for particle size, surface charge, morphology, and stability and encapsulation efficiency. Qualitative and quantitative intracellular uptake studies by confocal imaging and flow cytometry, respectively, showed higher uptake compared to Lipofectamine® transfected siRNA. Nanoemulsion significantly lowered TNFα levels in LPS-stimulated cells. Upon intranasal delivery of cationic nanoemulsions almost 5 fold higher uptake was observed in the rat brain compared to non-encapsulated siRNA. More importantly, intranasal delivery of TNFα siRNA nanoemulsions in vivo markedly reduced the unregulated levels of TNFα in an LPS-induced model of neuroinflammation. These results indicate that intranasal delivery of cationic nanoemulsions encapsulating TNFα siRNA offered an efficient means of gene knockdown and this approach has significant potential in prevention of neuroinflammation.From the clinical editor Neuroinflammation is often seen in patients with neurodegenerative disorders and tumor necrosis factor-alpha (TNFα) plays a significant role in contributing to neuronal dysfunction. As a result, inhibition of TNFα may alleviate disease severity. In this article, the authors investigated using a cationic nanoemulsion system carrying TNFα siRNA intra-nasally to protect against neuroinflammation. This new method may provide a future approach in this clinical setting.

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Crossref · 10.1016/j.nano.2015.12.374

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  • Intranasal delivery of TNFα siRNA nanoemulsions in rats led to a higher uptake of siRNA in the brain compared to distribution into the blood.

    “The study has shown that intranasal delivery of TNFα siRNA NEs in rats led to a higher uptake of siRNA in the brain compared to distribution into the blood.”

    From Nanoemulsions for “Nose-to-Brain” Drug Delivery (2019) · cites this paper as [62]

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Authors
Yadav, S., Gandham, S. K., Panicucci, R., & Amiji, M. M.
Affiliations
Northeastern University (US)
Corresponding author
Amiji, Mansoor M.
Venue
Nanomedicine: Nanotechnology, Biology and Medicine
Publisher
Elsevier BV
Published
2016-05
Volume
12
Issue
4
Pages
987-1002
ISSN
1549-9634 (ISSN-L)
OpenAlex
W2228098339
Cited by
125
References
41
Citations by year
2026: 11 · 2025: 15 · 2024: 13 · 2023: 13 · 2022: 14 · 2021: 13 · 2020: 14 · 2019: 12 · 2018: 11 · 2017: 8 · 2016: 1
FWCI
5.54
Type
journal article
Language
en
Open access
Locations
  • Nanomedicine Nanotechnology Biology and Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institute of Neurological Disorders and Stroke (R21NS066984)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Interference and Gene Delivery
  • Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Pharmaceutical Science › Advanced Drug Delivery Systems
  • Physical Sciences › Materials Science › Biomaterials › Nanoparticle-Based Drug Delivery
Keywords
intranasal drug delivery, cationic nanoemulsions, siRNA delivery, TNF-α, neuroinflammation, gene knockdown, LPS-induced neuroinflammation, brain uptake, neurodegenerative diseases, anti-inflammatory therapy
MeSH terms
Administration, Intranasal, Animals, Anti-Inflammatory Agents, Brain, Emulsions, Flow Cytometry, Humans, Inflammation, Lipids, Macrophages, Neurons, Particle Size, Tumor Necrosis Factor-alpha, Gene Silencing, RNA, Small Interfering, Rats, Nanoparticles

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