Evidence map›Paper›PMID 23209513›Full record

ArticleBeilstein journal of organic chemistry2012

Dimerization of a cell-penetrating peptide leads to enhanced cellular uptake and drug delivery.

Jan Hoyer, Ulrich Schatzschneider, Michaela Schulz-Siegmund, Ines Neundorf

Open access · diamondAbstract read
In one paragraph

Article in Beilstein journal of organic chemistry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.6field-weighted citation impact, top 17% 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

18 citing papers in PubMed, 58 citations in OpenAlex.

  1. Review
  2. Review
  3. Anti-Pythium insidiosum activity of MSI-78, LL-37, and magainin-2 antimicrobial peptides.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2022
    Article
  4. Review
  5. Review
  6. Article
  7. Review
  8. Article
  9. Review
  10. Review
  11. Article
  12. Article
  13. Article
  14. Trends in the Binding of Cell Penetrating Peptides to siRNA: A Molecular Docking Study.Journal of biophysics (Hindawi Publishing Corporation : Online) · 2017
    Article
  15. Design and Application of Antimicrobial Peptide Conjugates.International journal of molecular sciences · 2016
    Review
  16. A Cell-Permeable ATP Analogue for Kinase-Catalyzed Biotinylation.Angewandte Chemie (International ed. in English) · 2015
    Article
  17. Article
  18. 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

4 authors at 3 institutions in 1 country.

Jan HoyerInstitute of Biochemistry, Faculty of Biosciences, Pharmacy and Psychology, University of Leipzig, Brüderstraße 34, D-04103 Leipzig, Germany ; Institute for Biochemistry, Department of Chemistry, University of Cologne, Zülpicher Straße 47, D-50674 Cologne, Germany.
Ulrich Schatzschneider
Michaela Schulz-Siegmund
Ines Neundorf
University of Cologne · DELeipzig University · DEUniversity of Würzburg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Over the past 20 years, cell-penetrating peptides (CPPs) have gained tremendous interest due to their ability to deliver a variety of therapeutically active molecules that would otherwise be unable to cross the cellular membrane due to their size or hydrophilicity. Recently, we reported on the identification of a novel CPP, sC18, which is derived from the C-terminus of the 18 kDa cationic antimicrobial protein. Furthermore, we demonstrated successful application of sC18 for the delivery of functionalized cyclopentadienyl manganese tricarbonyl (cymantrene) complexes to tumor cell lines, inducing high cellular toxicity. In order to increase the potential of the organometallic complexes to kill tumor cells, we were looking for a way to enhance cellular uptake. Therefore, we designed a branched dimeric variant of sC18, (sC18)(2), which was shown to have a dramatically improved capacity to internalize into various cell lines, even primary cells, using flow cytometry and fluorescence microscopy. Cell viability assays indicated increased cytotoxicity of the dimer presumably caused by membrane leakage; however, this effect turned out to be dependent on the specific cell type. Finally, we could show that conjugation of a functionalized cymantrene with (sC18)(2) leads to significant reduction of its IC(50) value in tumor cells compared to the respective sC18 conjugate, proving that dimerization is a useful method to increase the drug-delivery potential of a cell-penetrating peptide.

Indexed as

anti-tumor agentscell-penetrating peptidesdrug deliveryinternalization studiesorganometallic complexespeptides

Identifiers

PMID23209513
PMCPMC3511013
OpenAlexW2151047639

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.