Evidence map›Paper›PMID 11574678›Full record

ArticleNucleic acids research2001

Nuclear antisense effects of neutral, anionic and cationic oligonucleotide analogs.

P Sazani, S H Kang, M A Maier, C Wei, J Dillman, J Summerton, M Manoharan, R Kole

Abstract read
In one paragraph

Article in Nucleic acids research, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 89 papers.

0numbers the graph read from it
0cells of the map it votes in
89citing papers in PubMed
–field-weighted citation impact
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

89 citing papers in PubMed.

  1. Article
  2. Molecular therapy. Nucleic acids · 2026
    Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Pharmacokinetics and Proceedings in Clinical Application of Nucleic Acid Therapeutics.Molecular therapy : the journal of the American Society of Gene Therapy · 2021
    Review
  19. Review
  20. Article

29 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

8 authors.

P SazaniLineberger Comprehensive Cancer Center and Department of Pharmacology, CB 7295, University of North Carolina at Chapel Hill, 102 Mason Farm Road, Chapel Hill, NC 27599, USA.
S H Kang
M A Maier
C Wei
J Dillman
J Summerton
M Manoharan
R Kole

Funding

PHS HHS P01-59299
6 · The paper itself

Abstract

The antisense activity of oligomers with 2'-O-methyl (2'-O-Me) phosphorothioate, 2'-O-methoxyethyl (2'-O-MOE) phosphorothioate, morpholino and peptide nucleic acid (PNA) backbones was investigated using a splicing assay in which the modified oligonucleotides blocked aberrant and restored correct splicing of modified enhanced green fluorescent protein (EGFP) precursor to mRNA (pre-mRNA), generating properly translated EGFP. In this approach, antisense activity of each oligomer was directly proportional to up-regulation of the EGFP reporter. This provided a positive, quantitative readout for sequence-specific antisense effects of the oligomers in the nuclei of individual cells. Nuclear localization of fluorescent labeled oligomers confirmed validity of the functional assay. The results showed that the free uptake and the antisense efficacy of neutral morpholino derivatives and cationic PNA were much higher than that of negatively charged 2'-O-Me and 2'-O-MOE congeners. The effects of the PNA oligomers were observed to be dependent on the number of L-lysine (Lys) residues at the C-terminus. The experiments suggest that the PNA containing Lys was taken up by a mechanism similar to that of cell-penetrating homeodomain proteins and that the Lys tail enhanced intracellular accumulation of PNA oligomer without affecting its ability to reach and hybridize to the target sequence.

Indexed as

AnionsBiological TransportCationsCell NucleusGenes, ReporterGlobinsGreen Fluorescent ProteinsHeLa CellsHumansIndicators and ReagentsIntronsLuminescent ProteinsLysineMorpholinesOligonucleotides, AntisenseOrganothiophosphorus CompoundsAnionsCationsGlobinsGreen Fluorescent ProteinsIndicators and ReagentsLuminescent ProteinsLysineMorpholinesOligonucleotides, AntisenseOrganothiophosphorus CompoundsPeptidesRNA PrecursorsThionucleotides

Identifiers

PMID11574678
PMCPMC60237

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.