Evidence map›Paper›PMID 12527766›Full record

ArticleNucleic acids research2003

Tolerance for mutations and chemical modifications in a siRNA.

Mohammed Amarzguioui, Torgeir Holen, Eshrat Babaie, Hans Prydz

Open access · bronzeAbstract read
In one paragraph

Article in Nucleic acids research, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 189 papers.

0numbers the graph read from it
0cells of the map it votes in
189citing papers in PubMed
17.8field-weighted citation impact, top 1% 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

189 citing papers in PubMed, 529 citations in OpenAlex.

  1. Review
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  6. Nucleic acid therapeutics: Past, present, and future.Molecular therapy. Nucleic acids · 2025
    Review
  7. Article
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  11. The landscape of nanoparticle-based siRNA delivery and therapeutic development.Molecular therapy : the journal of the American Society of Gene Therapy · 2024
    Review
  12. Review
  13. Review
  14. Sequence specificity defines the effectiveness of PPMOs targetingAntimicrobial agents and chemotherapy · 2023
    Article
  15. Review
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  18. Review
  19. Article
  20. Nucleic acid drug vectors for diagnosis and treatment of brain diseases.Signal transduction and targeted therapy · 2023
    Review

129 more citing papers are in PubMed but not listed here.

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

4 authors at 1 institution in 1 country.

Mohammed AmarzguiouiThe Biotechnology Centre of Oslo, University of Oslo, Gaustadalleen 21, N-0349, Oslo, Norway.
Torgeir Holen
Eshrat Babaie
Hans Prydz
University of Oslo · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Short interfering RNA (siRNA), the active agent of RNA interference, shows promise of becoming a valuable tool in both basic and clinical research. We explore the tolerance to mutations and chemical modifications in various parts of the two 21-nt strands of a siRNA targeting the blood clotting initiator Tissue Factor. The mutations were G/C transversions. The chemical modifications were 2'-O-methylation, 2'-O-allylation and phosphorothioates. We found that siRNA generally tolerated mutations in the 5' end, while the 3' end exhibited low tolerance. This observation may facilitate the design of siRNA for specific targeting of transcripts containing single nucleotide polymorphisms. We further demonstrate that in our system the single antisense strand of the wild-type siRNA is almost as effective as the siRNA duplex, while the corresponding methylated M2+4 version of the antisense had reduced activity. Most of the chemically modified versions tested had near-wild-type initial activity, while the long-term activity was increased for certain siRNA species. Our results may improve the design of siRNAs for in vivo experiments.

Indexed as

Cell LineHumansMutationOligoribonucleotidesRNA InterferenceRNA, MessengerRNA, Small InterferingThromboplastinTransfectionOligoribonucleotidesRNA, MessengerRNA, Small InterferingThromboplastin

Identifiers

PMID12527766
PMCPMC140512
OpenAlexW2159595055

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.