Cited by 28Nanoparticle-Based Drug DeliveryPancreatic and Hepatic Oncology ResearchAdvanced Drug Delivery Systems

Polymeric Micelles of PEG-PLA Copolymer as a Carrier for Salinomycin Against Gemcitabine-Resistant Pancreatic Cancer

Daman, Zahra, Montazeri, Hamed, Azizi, Masoumeh, Rezaie, Faegheh, Ostad, Seyed Nasser, Amini, Mohsen, Gilani, Kambiz·2015·Pharmaceutical Research

Abstract

Purpose Resistance to gemcitabine in pancreatic cancer (PC) may account for the failure of conventional treatments. Recently, salinomycin (SAL) has been identified as selective inhibitor of cancer stem cells (CSCs). In our study, we aimed to deliver SAL to gemcitabine-resistant PC by the aid of poly ethylene glycol-b-poly lactic acid (PEG-b-PLA) polymeric micelles (PMs).Methods SAL-loaded PMs were prepared and investigated in terms of pharmaceutical properties. MTT and Annexin V/PI assays were used to study cell proliferation and apoptosis in AsPC-1 cells in response to treatment with SAL micellar formulations. Alterations in CSC phenotype, invasion strength, and mRNA expression of epithelial mesenchymal transition (EMT) markers were also determined in the treated cells. In vivo antitumor study was performed in Balb/c AsPC-1 xenograft mice.Results PM formulations of SAL were prepared in suitable size and loading traits. In gemcitabine-resistant AsPC-1 cells, SAL was found to significantly increase cell mortality and apoptosis. It was also observed that SAL micellar formulations inhibited invasion and harnessed EMT in spite of induced expression of Snail. The in vivo antitumor experiment showed significant tumor eradication and the highest survival probability in mice treated with SAL PMs.Conclusions The obtained results showed the efficacy of SAL nano-formulation against PC tumor cells.

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Crossref · 10.1007/s11095-015-1737-8

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Authors
Daman, Z., Montazeri, H., Azizi, M., Rezaie, F., Ostad, S. N., Amini, M., & Gilani, K.
Affiliations
  • Tehran University of Medical Sciences (IR)
  • Pasteur Institute of Iran (IR)
Corresponding author
Gilani, Kambiz
Venue
Pharmaceutical Research
Published
2015-07-31
Volume
32
Issue
11
Pages
3756-3767
ISSN
  • 0724-8741 (ISSN-L)
  • 1573-904X
OpenAlex
W992516122
Cited by
28
References
40
Citations by year
2025: 3 · 2024: 1 · 2023: 4 · 2022: 3 · 2021: 3 · 2020: 1 · 2019: 4 · 2018: 4 · 2017: 3 · 2016: 2
FWCI
1.08
Type
journal article
Language
en
Open access
closed
Locations
  • Pharmaceutical Research (publishedVersion)
  • PubMed (publishedVersion)
Funders
Public Health Agency of Canada
Topics
  • Physical Sciences › Materials Science › Biomaterials › Nanoparticle-Based Drug Delivery
  • Health Sciences › Medicine › Oncology › Pancreatic and Hepatic Oncology Research
  • Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Pharmaceutical Science › Advanced Drug Delivery Systems
Keywords
salinomycin, polymeric micelles, PEG-b-PLA, gemcitabine resistance, pancreatic cancer, cancer stem cells, epithelial-mesenchymal transition, snails, apoptosis, tumor invasion, drug delivery, AsPC-1 cells, tumor xenografts
MeSH terms
Gemcitabine, Polyether Polyketides, Animals, Antineoplastic Agents, Cell Survival, Chromatography, High Pressure Liquid, Deoxycytidine, Drug Carriers, Flow Cytometry, Humans, Mice, Inbred BALB C, Micelles, Pancreatic Neoplasms, Particle Size, Polyethylene Glycols, Pyrans, Solubility, Surface Properties, Apoptosis, Drug Resistance, Neoplasm, Xenograft Model Antitumor Assays, NIH 3T3 Cells, Cell Line, Tumor, Mice, Drug Liberation

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