Evidence map›Paper›PMID 31900365›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2020

The effector mechanism of siRNA spherical nucleic acids.

Gokay Yamankurt, Robert J Stawicki, Diana M Posadas, Joseph Q Nguyen, Richard W Carthew, Chad A Mirkin

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.8field-weighted citation impact, top 9% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

22 citing papers in PubMed, 55 citations in OpenAlex.

  1. Article
  2. Molecular therapy. Nucleic acids · 2025
    Article
  3. Review
  4. Article
  5. Review
  6. Article
  7. In Vivo Behavior of Ultrasmall Spherical Nucleic Acids.Small (Weinheim an der Bergstrasse, Germany) · 2023
    Article
  8. Article
  9. Article
  10. Scavenger receptor-targeted plaque delivery of microRNA-coated nanoparticles for alleviating atherosclerosis.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  11. Review
  12. Hairpin-like siRNA-Based Spherical Nucleic Acids.Journal of the American Chemical Society · 2022
    Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Review
  18. DNA Dendrons as Agents for Intracellular Delivery.Journal of the American Chemical Society · 2021
    Article
  19. Article
  20. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Gokay YamankurtInterdisciplinary Biological Sciences Graduate Program, Northwestern University, Evanston, IL 60208.
Robert J StawickiInternational Institute for Nanotechnology, Northwestern University, Evanston, IL 60208.
Diana M PosadasDepartment of Molecular Biosciences, Northwestern University, Evanston, IL 60208.
Joseph Q NguyenDepartment of Molecular Biosciences, Northwestern University, Evanston, IL 60208.
Richard W CarthewDepartment of Molecular Biosciences, Northwestern University, Evanston, IL 60208; r-carthew@northwestern.edu chadnano@northwestern.edu.
Chad A MirkinInternational Institute for Nanotechnology, Northwestern University, Evanston, IL 60208; r-carthew@northwestern.edu chadnano@northwestern.edu.ORCID 0000-0002-6634-7627
Northwestern University · US

Funding

STINGing GBM: A First-in- Man Clinical Trial in Surgical Resectable Recurrent GBMP50CA221747 · NCI · NORTHWESTERN UNIVERSITY AT CHICAGO · PI Pouya Jamshidi · 2018 to 2026
$21.4M
Project 3: Spherical Nucleic Acids as Immunotherapeutic Agents for Prostate CancerU54CA199091 · NCI · NORTHWESTERN UNIVERSITY AT CHICAGO · PI MIRKIN, CHAD A. · 2015 to 2019
$11.7M
Non-coding RNAs and their mechanisms and functions-RenewalR35GM118144 · NIGMS · NORTHWESTERN UNIVERSITY · PI Richard W. CARTHEW · 2016 to 2026
$6.8M
Chemistry of Life Processes Predoctoral Training ProgramT32GM105538 · NIGMS · NORTHWESTERN UNIVERSITY · PI KELLEHER, NEIL L · 2013 to 2022
$2.7M
Systemic RNA interference to reactivate p53 tumor suppressionR01CA208783 · NCI · NORTHWESTERN UNIVERSITY AT CHICAGO · PI MIRKIN, CHAD A., STEGH, ALEXANDER H. · 2017 to 2021
$1.8M
NCI NIH HHS P50 CA221747NCI NIH HHS R01 CA208783NCI NIH HHS U54 CA199091NIGMS NIH HHS R35 GM118144NIGMS NIH HHS T32 GM105538
6 · The paper itself

Abstract

Spherical nucleic acids (SNAs) are nanostructures formed by chemically conjugating short linear strands of oligonucleotides to a nanoparticle template. When made with modified small interfering RNA (siRNA) duplexes, SNAs act as single-entity transfection and gene silencing agents and have been used as lead therapeutic constructs in several disease models. However, the manner in which modified siRNA duplex strands that comprise the SNA lead to gene silencing is not understood. Herein, a systematic analysis of siRNA biochemistry involving SNAs shows that Dicer cleaves the modified siRNA duplex from the surface of the nanoparticle, and the liberated siRNA subsequently functions in a way that is dependent on the canonical RNA interference mechanism. By leveraging this understanding, a class of SNAs was chemically designed which increases the siRNA content by an order of magnitude through covalent attachment of each strand of the duplex. As a consequence of increased nucleic acid content, this nanostructure architecture exhibits less cell cytotoxicity than conventional SNAs without a decrease in siRNA activity.

Indexed as

RNA InterferenceAnimalsCell Line, TumorDrosophila melanogasterHumansNanoparticlesRibonuclease IIIRNA, Small InterferingRibonuclease IIIRNA, Small Interferinggene regulationsiRNA processingspherical nucleic acids

Identifiers

PMID31900365
PMCPMC6983385
OpenAlexW2997853711

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.