Etoposide loaded SPION-PNIPAM nanoparticles improve the in vitro therapeutic outcome on metastatic prostate cancer cells via enhanced apoptosis
Yükleniyor...
Dosyalar
Tarih
2020
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Prostate cancer is among the leading causes of death worldwide because its metastatic form is a deadly disease. Therefore, the development of new chemotherapeutics is of immense importance. Nanoparticle technology seems to provide diverse options in this regard. Therefore, poly(N-isopropylacrylamide) (PNIPAM) coated superparamagnetic iron oxide nanoparticles (SPION) loaded with etoposide were prepared in small sizes (57 nm) and with 3.5% drug content to improve the efficiency of etoposide in prostate cancer therapy. Sustained release of the drug was achieved, which found to be sensitive to low pH and high temperature. The anti-growth activity of SPION-PNIPAM-Etoposide formulation against metastatic prostate cancer cells (PC-3, LNCaP) were investigated by SRB assay, then confirmed by ATP assay. Mode of cell death was evaluated by using flow cytometry analyses. A significant improvement of nanoformulated drug was observed at 5-10 ?g/ml doses of the drug in both cell lines. More importantly, this formulation enhanced the cytotoxic effect of etoposide on PC-3 cells, which is considered more resistant to etoposide than LNCaP, and reduced the IC 50 by 55% reaching to 4.5 ?g drug/ml, which is a very significant improvement in the literature. It was clearly shown that nanoformulated drug provided about 3 fold increases in caspase-dependent early apoptotic cells in PC-3 cells. The novel formulation seems to successfully cause cell death of especially PC-3 metastatic prostate cancer cells. It should therefore be taken into consideration for further animal studies as a novel potent anticancer agent.
Açıklama
Anahtar Kelimeler
Superparamagnetic Iron Oxide Nanoparticles, Etoposide, Apoptosis, Prostate Cancer, Drug Delivery
Kaynak
Chem Biodivers
WoS Q Değeri
Q3
Scopus Q Değeri
Q2
Cilt
Sayı
Künye
Erkisa, M., Arı, F., Ulku, I., Khodadust, R., Yar, Y., Yagci Acar, H., & Ulukaya, E. Etoposide Loaded SPION‐PNIPAM Nanoparticles Improve the in vitro Therapeutic Outcome on Metastatic Prostate Cancer Cells via Enhanced Apoptosis. Chemistry & Biodiversity.
