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  • The Utilization of Poly(2-ethyl-2-oxazoline)-b-Poly(ε-caprolactone) Ellipsoidal Particles for Intracellular BIKDDA Delivery to Prostate Cancer.

The Utilization of Poly(2-ethyl-2-oxazoline)-b-Poly(ε-caprolactone) Ellipsoidal Particles for Intracellular BIKDDA Delivery to Prostate Cancer.

Macromolecular bioscience (2020-11-17)
Polen Kocak, Umut Can Oz, Zeynep Busra Bolat, Umut Ugur Ozkose, Sevgi Gulyuz, Mehmet Atilla Tasdelen, Ozgur Yilmaz, Asuman Bozkir, Fikrettin Sahin, Dilek Telci
ABSTRACT

Prostate cancer is the most common cancer, which is about 15-20% among male cancers worldwide. As most common strategies such as radiotherapy, chemotherapy, or surgery alone can be unsuccessful in the treatment of prostate cancer, this study aims to develop a new approach to deliver newly generated proapoptotic gene, BIKDDA, to androgen independent prostate cancer cells, 22RV1, using new generation nanocarriers called ellipsoids. As far as it is known, this is the first study that assesses the ability of proapoptotic gene BIKDDA to induce apoptosis in prostate cancer cell. BIKDDA encapsulating PEtOx-b-PCL-based ellipsoids are fabricated by solvent-switch method, and their morphology, size, and BIKDDA content are characterized. Gene delivery efficiency of BIKDDA loaded PEtOx-b-PCL ellipsoids is demonstrated by analysis of BIK mRNA expression with real-time PCR. The apoptotic effect of PEtOx-b-PCL ellipsoids loaded with BIKDDA (EPs-BIKDDA) on 22RV1 is shown by Annexin V staining. The obtained results demonstrate that the treatment of 22RV1 cells with EPs-BIKDDA can significantly increase BIK mRNA levels by 4.5-fold leading to cell death. This study not only represents BIKDDA as a potential therapeutic strategy in prostate cancer but also the capacity of ellipsoids as promising in vivo gene delivery vehicles.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Calcium hydride, reagent grade, 95% (gas-volumetric)
Sigma-Aldrich
Tin(II) 2-ethylhexanoate, 92.5-100.0%
Sigma-Aldrich
Phosphate buffered saline, tablet
Sigma-Aldrich
2-Ethyl-2-oxazoline, ≥99%
Sigma-Aldrich
Toluene, puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥99.7% (GC)
Sigma-Aldrich
Propargyl alcohol, 99%
Sigma-Aldrich
Methyl p-toluenesulfonate, 98%
Sigma-Aldrich
Tetrahydrofuran, inhibitor-free, suitable for HPLC, ≥99.9%