Improving antitumor targeting via using PL3 homing peptide and cell-penetrating peptide

Authors

DOI:

https://doi.org/10.18413/rrpharmacology.9.10028

Abstract

Introduction: Tumor-homing peptides have gained great attention as tools for the development of non-invasive and targeting drug delivery systems (DDS) to minimize drug systemic toxicity and enhance bioavailability. This study aims to improve antitumor targeting in prostate cancer via uploading a drug to a DDS comprised of a cell penetrating peptide decorated with a tumor-homing peptide, PL3.

Material and Methods: The DDS was constructed via solid-phase peptide synthesis and then characterized via mass spectrum and high performance liquid chromatography. A cell viability assessment to evaluate its cytotoxicity on both tumor (prostate cancer cells) and normal cells was conducted, while a confocal laser scanning microscope and flow-cytometer were employed to investigate internalization. To inspect the effectiveness of the drug-loaded DDS, a biochemical enzyme inhibition assay on the target enzyme dihydrofolate reductase (DHFR) was performed. ‎

Results and Discussion:‏ The findings supported the succeeded synthesis and loading of the drug into this carrier system and demonstrated its high efficacy in cytotoxic effect and inhibiting DHFR with considerable cellular uptake in prostate cancer cells.

Conclusion: The drug was delivered to the target prostate cancer cells by the PL3-functionalized DDS, limiting its localization to tumor cells rather than normal cells. Therefore, the study results highlighted the significance of the DDS in tumor therapy interventions.

Graphical Abstactmceclip0-ef0205c1c121abe7893b0efb3f6fc12e.png

Keywords:

cancer chemotherapy, cell-penetrating peptide, drug delivery system, prostate cancer, tumor-homing peptide

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Author Contribution

Dhafir Masheta, College of Pharmacy, University of Babylon

Dhafir Masheta, ‎‏ ‏PhD in Pharmacy,‎ College of Pharmacy, University of Babylon, Hilla‎; e-mail: phar.dhafir.qahtan.@uobabylon.edu.iq;  ORCID ID https://orcid.org/0000-0003-‎‎0333-5407‎‏. The author was engaged in performing whole experiments, designing the study, ‏collecting data, analyzing the results and writing the manuscript.‏

Shafq Al-Azzawi, College of Pharmacy, University of Babylon

PhD in Pharmacy, College of Pharmacy, University of Babylon, Hilla;  e-mail: Phar.shafaq.kadhim@uobabylon.edu.iq; ORCID ‎ID https://orcid.org/0000-‎‎0003-‎‎4243-0255. The author was engaged in performing whole experiments, designing the study, collecting data, analyzing the results, writing and editing the manuscript. ‎‏

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Published

06-06-2023

How to Cite

Masheta D, Al-Azzawi S (2023) Improving antitumor targeting via using PL3 homing peptide and cell-penetrating peptide. Research Results in Pharmacology 9(2): 61–65. https://doi.org/10.18413/rrpharmacology.9.10028

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Experimental Pharmacology