ArticleScientific reports2024
A novel LL-37@NH2@Fe3O4 inhibits the proliferation of the leukemia K562 cells: in-vitro study.
Article in Scientific reports, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Apoptosis Modulation by LL-37: From Mitochondrial Cell Death to Prosurvival Signaling.International journal of molecular sciences · 2026Review
- Cathelicidin LL37-loaded extracellular vesicles from Edwardsiella piscicida promote antibacterial and wound-healing activity.Scientific reports · 2025Article
- Enhanced therapeutic efficacy of silibinin loaded silica coated magnetic nanocomposites against Pseudomonas aeruginosa in Combination with Ciprofloxacin and HepG2 cancer cells.Scientific reports · 2025Article
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Authors and funding
3 authors.
Funding
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Abstract
LL-37 can inhibit the growth of K562 cancer cells when it is conjugated with iron oxide nanoparticles. In this study, Fe3O4 nanoparticles were synthesized using the co-precipitation method and then modified with the LL-37 peptide through an NH2 bridge. The accuracy of the synthesis process was confirmed through various analytical tests, including FTIR, XRD, FESEM, and EDX. To assess the treatment's effectiveness, a viability test was carried out on K562 leukemia cells and normal peripheral blood mononuclear cells. In addition, flow cytometry and Hoechst staining were used to investigate the mechanism of action of the drug. The expression levels of the Bcl-2, Bax, and TP53 genes in the treated cells and the control group were measured using qRT-PCR. The results indicated that the size of the nanoparticles ranged between 34 and 40 nm. The NH2@LL-37@Fe3O4 nanoparticles more effectively inhibited the growth of cancer cells in a concentration-dependent manner, as compared to Fe3O4 alone. Further analysis revealed that apoptosis occurred through increased expression of TP53 and Bax genes compared to the Bcl-2 gene. Therefore, induction of apoptosis and inhibition of growth in K562 cells was attributed to the impact of iron oxide magnetic nanoparticles conjugated with the LL-37 peptide through the TP53/Bax/Bcl-2 pathway.
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