Evidence map›Paper›PMID 22837667›Full record

ArticleInternational journal of molecular sciences2012

Role of helicity on the anticancer mechanism of action of cationic-helical peptides.

Yi-Bing Huang, Li-Yan He, Hong-Yu Jiang, Yu-Xin Chen

Abstract read
In one paragraph

Article in International journal of molecular sciences, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
–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

24 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Roles of d-Amino Acids on the Bioactivity of Host Defense Peptides.International journal of molecular sciences · 2016
    Pooled it
  2. A Comparative Study of Melittins fromInternational journal of molecular sciences · 2025
    Article
  3. Review
  4. Anti‑angiogenic effect ofInternational journal of oncology · 2025
    Article
  5. Article
  6. Review
  7. Article
  8. Article
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  10. Article
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  12. Article
  13. Rediscovery of antimicrobial peptides as therapeutic agents.Journal of microbiology (Seoul, Korea) · 2021
    Review
  14. Article
  15. Review
  16. Review
  17. Article
  18. Enantiomeric CopA3 dimer peptide suppresses cell viability and tumor xenograft growth of human gastric cancer cells.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2016
    Article
  19. Article
  20. 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.

Yi-Bing HuangKey Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, Jilin University, Changchun 130012, China.
Li-Yan HeKey Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, Jilin University, Changchun 130012, China.
Hong-Yu JiangThe First Hospital, Jilin University, Changchun 130021, China.
Yu-Xin ChenKey Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, Jilin University, Changchun 130012, China.ORCID 0000-0001-6649-9324

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In the present study, the 26-residue amphipathic α-helical peptide A12L/A20L (Ac-KWKSFLKTFKSLKKTVLHTLLKAISS-amide) with strong anticancer activity and specificity was used as the framework to study the effects of helicity of α-helical anticancer peptides on biological activities. Helicity was systematically modulated by introducing d-amino acids to replace the original l-amino acids on the non-polar face or the polar face of the helix. Peptide helicity was measured by circular dichroism spectroscopy and was demonstrated to correlate with peptide hydrophobicity and the number of d-amino acid substitutions. Biological studies showed that strong hemolytic activity of peptides generally correlated with high hydrophobicity and helicity. Lower helicity caused the decrease of anti-HeLa activity of peptides. By introducing d-amino acids to replace the original l-amino acids on the non-polar face or the polar face of the helix, we improved the therapeutic index of A12L/A20L against HeLa cells by 9-fold and 22-fold, respectively. These results show that the helicity of anticancer peptides plays a crucial role for biological activities. This specific rational approach of peptide design could be a powerful method to improve the specificity of anticancer peptides as promising therapeutics in clinical practices.

Indexed as

Protein Structure, SecondaryAmino AcidsAmino Acid SequenceAntimicrobial Cationic PeptidesAntineoplastic AgentsCationsChemistry, PharmaceuticalCircular DichroismDrug DesignDrug Screening Assays, AntitumorErythrocytesHeLa CellsHemolysisHumansHydrophobic and Hydrophilic InteractionsInhibitory Concentration 50Amino AcidsAntimicrobial Cationic PeptidesAntineoplastic AgentsCationsPeptidesanticancer peptideshelicityhydrophobicitymechanism of actionspecificity

Identifiers

PMID22837667
PMCPMC3397499

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Registered trials

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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.