Evidence map›Paper›PMID 23638046›Full record

ArticlePloS one2013

General cell-binding activity of intramolecular G-quadruplexes with parallel structure.

Tianjun Chang, Cui Qi, Jie Meng, Nan Zhang, Tao Bing, Xianda Yang, Zehui Cao, Dihua Shangguan

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
0.9field-weighted citation impact, top 26% 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

14 citing papers in PubMed, 33 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Antiproliferative Effects of the Aptamer d(GGGT)International journal of molecular sciences · 2022
    Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. G-quadruplex-based aptamers against protein targets in therapy and diagnostics.Biochimica et biophysica acta. General subjects · 2017
    Review
  13. Article
  14. Article
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 at 3 institutions in 1 country.

Tianjun ChangBeijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China.
Cui Qi
Jie Meng
Nan Zhang
Tao Bing
Xianda Yang
Zehui Cao
Dihua Shangguan
Beijing National Laboratory for Molecular Sciences · CNChinese Academy of Sciences · CNNational Center for Nanoscience and Technology · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

G-quadruplexes (G4s) are four-stranded nucleic acid structures adopted by some repetitive guanine-rich sequences. Putative G-quadruplex-forming sequences (PQSs) are highly prevalent in human genome. Recently some G4s have been reported to have cancer-selective antiproliferative activity. A G4 DNA, AS1411, is currently in phase II clinical trials as an anticancer agent, which is reported to bind tumor cells by targeting surface nucleolin. AS1411 also has been extensively investigated as a target-recognition element for cancer cell specific drug delivery or cancer cell imaging. Here we show that, in addition to AS1411, intramolecular G4s with parallel structure (including PQSs in genes) have general binding activity to many cell lines with different affinity. The binding of these G4s compete with each other, and their targets are certain cellular surface proteins. The tested G4s exhibit enhanced cellular uptake than non-G4 sequences. This uptake may be through the endosome/lysosome pathway, but it is independent of cellular binding of the G4s. The tested G4s also show selective antiproliferative activity that is independent of their cellular binding. Our findings provide new insight into the molecular recognition of G4s by cells; offer new clues for understanding the functions of G4s in vivo, and may extend the potential applications of G4s.

Indexed as

G-QuadruplexesAnimalsAntibodies, MonoclonalCell Line, TumorCell MembraneCell ProliferationCellsCircular DichroismFluorescent Antibody TechniqueHumansMicroscopy, ConfocalNucleolinPhosphoproteinsProtein BindingRatsRNA-Binding ProteinsAntibodies, MonoclonalNucleolinPhosphoproteinsRNA-Binding Proteins

Identifiers

PMID23638046
PMCPMC3637168
OpenAlexW2078190029

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.