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Hafnium Oxide-Based Nanoplatform for Combined Chemoradiotherapy
Anastasiia A Sherstiuk1, Sergey A Tsymbal1, Anna F Fakhardo1
1ITMO University, 9 Lomonosova, St. Petersburg 191002, Russia.
ACS Biomaterials Science & Engineering
|October 29, 2021
Summary
This study introduces a novel nanoplatform for combined cancer therapy. The system enhances chemotherapy and radiotherapy, showing increased cancer cell death with minimal toxicity.
Area of Science:
- Nanotechnology
- Oncology
- Materials Science
Background:
- Combined cancer therapy is a key strategy for improved treatment outcomes.
- Nanomaterials offer potential for targeted drug delivery and enhanced therapeutic effects.
Purpose of the Study:
- To develop and evaluate a supramolecular nanoplatform for combined cancer treatment.
- To assess the nanoplatform's efficacy in targeted drug delivery, imaging, and radiotherapy enhancement.
Main Methods:
- Fabrication of hafnium oxide (HfO2) nanoparticles coated with oleic acid and a PEG-PCL copolymer shell.
- In vitro cytotoxicity assessment of nanoparticles and doxorubicin (DOX)-loaded nanoplatform.
- Evaluation of enhanced cell death upon X-ray irradiation of cancer cells treated with the nanoplatform.
Main Results:
- The developed nanoplatform demonstrated effective accumulation within cancer cells.
- DOX-loaded nanoplatform showed a lower IC50 value compared to free DOX.
- X-ray irradiation of nanoplatform-loaded cancer cells resulted in a significantly higher cell death rate.
Conclusions:
- The supramolecular nanoplatform is a promising system for combined cancer therapy.
- This approach enhances chemotherapy and radiotherapy efficacy while maintaining low cytotoxicity.
- The findings support the development of advanced nanoscale systems for integrated cancer treatment.
