Alginate/CaCO3 Hybrid Loaded With Sorafenib Tosylate and Gold Hexagons: A Model for Efficient Dual (Chemo-Radio) Treatment of HepG2 Cells

Document Type : Original Article

Authors

1 Faculty of Science, Helwan University

2 Physics Dept., Medical Biophysics Division Faculty of Science Helwan University

3 Physics Department, Faculty of Science, Helwan University, Cairo, Egypt

4 Department of Polymers and Pigments, National Research Centre, Dokki, Giza, Egypt

Abstract

Abstract
We investigated the combinatorial cytotoxic actions of the chemotherapeutic drug (sorafenib tosylate, ST), in synergism with γ-radiation, on human hepatocellular carcinoma (HepG2) cells. The novel radiosensitizer, hexagonal gold nanoparticles (HG), was prepared and utilized to enhance the radiobiological response of HepG2 cells. A well-designed nanoporous alginate/calcium carbonate hybrid (ALG-CaCO3) was prepared as a biocompatible/biodegradable nanocarrier for co-delivery of the hydrophobic drug (ST) and the hydrophilic radiosensitizer (HG) to the cancer cells. Incubation of HepG2 cells with the prepared nanoprobes followed by irradiation with different doses (0, 3 or 6 Gy) of γ-radiation resulted in a significant reduction of the cells viability as a result of the synergistic (chemo-radiation) cytotoxic actions.

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