ArticleChemical science2021
Design and enhanced gene silencing activity of spherical 2'-fluoroarabinose nucleic acids (FANA-SNAs).
Article in Chemical science, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- Chemical Modification Strategies for Therapeutic Oligonucleotides: Mechanism Compatibility, Design Trade-Offs, and Translational Barriers.Molecules (Basel, Switzerland) · 2026Review
- Spherical Nucleic Acids: Turning Synthetic Advances and Fundamental Discovery into Translational Breakthroughs in Chemistry, Materials Development, Biology, and Medicine.Accounts of chemical research · 2026Article
- Complex Donuts: Small Variations in DNA Sequence Dictate Pathway Complexity in DNA Nanotoroids.Angewandte Chemie (International ed. in English) · 2025Article
- Self-Assembly and Biological Properties of Highly Fluorinated Oligonucleotide Amphiphiles.Angewandte Chemie (International ed. in English) · 2025Article
- Photochemical Stabilization of Self-Assembled Spherical Nucleic Acids.Small (Weinheim an der Bergstrasse, Germany) · 2025Article
- Recent advances in gene delivery nanoplatforms based on spherical nucleic acids.Journal of nanobiotechnology · 2024Review
- Heat-activated growth of metastable and length-defined DNA fibers expands traditional polymer assembly.Nature communications · 2024Article
- Enhancing Endosomal Escape and Gene Regulation Activity for Spherical Nucleic Acids.Small (Weinheim an der Bergstrasse, Germany) · 2024Article
- Therapeutic Oligonucleotides: An Outlook on Chemical Strategies to Improve Endosomal Trafficking.Cells · 2023Review
- Small Molecule-Templated DNA Hydrogel with Record Stiffness Integrates and Releases DNA Nanostructures and Gene Silencing Nucleic Acids.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2023Article
Corrections and comments
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Drug delivery vectors for nucleic acid therapeutics (NATs) face significant barriers for translation into the clinic. Spherical nucleic acids (SNAs) - nanoparticles with an exterior shell made up of DNA strands and a hydrophobic interior - have recently shown great potential as vehicles to improve the biodistribution and efficacy of NATs. To date, SNA design has not taken advantage of the powerful chemical modifications available to NATs. Here, we modify SNAs with 2'-deoxy-2'-fluoro-d-arabinonucleic acid (FANA-SNA), and show increased stability, enhanced gene silencing potency and unaided uptake (gymnosis) as compared to free FANA. By varying the spacer region between the nucleic acid strand and the attached hydrophobic polymer, we show that a cleavable DNA based spacer is essential for maximum activity. This design feature will be important when implementing functionalized nucleic acids into nanostructures for gene silencing. The modularity of the FANA-SNA was demonstrated by silencing two different targets. Transfection-free delivery was superior for the modified SNA compared to the free FANA oligonucleotide.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.