Evidence map›Paper›PMID 34445175›Full record

ArticleInternational journal of molecular sciences2021

Effect of L- to D-Amino Acid Substitution on Stability and Activity of Antitumor Peptide RDP215 against Human Melanoma and Glioblastoma.

Theresa Maxian, Lisa Gerlitz, Sabrina Riedl, Beate Rinner, Dagmar Zweytick

Open access · goldAbstract read
In one paragraph

Article in International journal of molecular sciences, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.1field-weighted citation impact, top 22% 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

13 citing papers in PubMed, 22 citations in OpenAlex.

  1. Review
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  4. In Vitro Profiling of the Antiviral Peptide TAT-I24.International journal of molecular sciences · 2024
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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

5 authors at 2 institutions in 1 country.

Theresa MaxianInstitute of Molecular Biosciences, University of Graz, Humboldtstraße 50/III, A-8010 Graz, Austria.
Lisa GerlitzInstitute of Molecular Biosciences, University of Graz, Humboldtstraße 50/III, A-8010 Graz, Austria.
Sabrina RiedlInstitute of Molecular Biosciences, University of Graz, Humboldtstraße 50/III, A-8010 Graz, Austria.
Beate RinnerBioTechMed-Graz, A-8010 Graz, Austria.
Dagmar ZweytickInstitute of Molecular Biosciences, University of Graz, Humboldtstraße 50/III, A-8010 Graz, Austria.
University of Graz · ATMedical University of Graz · AT

Funding

Österreichische Forschungsförderungsgesellschaft 855671
6 · The paper itself

Abstract

The study investigates the antitumor effect of two cationic peptides, R-DIM-P-LF11-215 (RDP215) and the D-amino acid variant 9D-R-DIM-P-LF11-215 (9D-RDP215), targeting the negatively charged lipid phosphatidylserine (PS) exposed by cancer cells, such as of melanoma and glioblastoma. Model studies mimicking cancer and non-cancer membranes revealed the specificity for the cancer-mimic PS by both peptides with a slightly stronger impact by the D-peptide. Accordingly, membrane effects studied by DSC, leakage and quenching experiments were solely induced by the peptides when the cancer mimic PS was present. Circular dichroism revealed a sole increase in β-sheet conformation in the presence of the cancer mimic for both peptides; only 9D-RDP215 showed increased structure already in the buffer. Ex vitro stability studies by SDS-PAGE as well as in vitro with melanoma A375 revealed a stabilizing effect of D-amino acids in the presence of serum, which was also confirmed in 2D and 3D in vitro experiments on glioblastoma LN-229. 9D-RDP215 was additionally able to pass a BBB model, whereupon it induced significant levels of cell death in LN-229 spheroids. Summarized, the study encourages the introduction of D-amino acids in the design of antitumor peptides for the improvement of their stable antitumor activity.

Indexed as

Amino Acid SubstitutionAntineoplastic AgentsCell DeathCell Line, TumorDrug DiscoveryGlioblastomaHumansMelanomaModels, MolecularPeptidesAntineoplastic AgentsPeptidesantitumor peptidesD-amino acidsglioblastomamelanomaserum stability

Identifiers

PMID34445175
PMCPMC8395111
OpenAlexW3188173355

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.