Photodynamic treatment with anionic nanoclays containing curcumin on human triple‐negative breast cancer cells: Cellular and biochemical studies

Journal of Cellular Biochemistry - Tập 120 Số 4 - Trang 4998-5009 - 2019
Khatereh Khorsandi1, Reza Hosseinzadeh2, F. Shahidi1
1Department of Photodynamic, Medical Laser Research Center, Yara Institute, ACECR, Tehran, Iran
2Department of Medical Laser, Medical Laser Research Center, YARA Institute, ACECR, Tehran, Iran

Tóm tắt

AbstractPhotodynamic treatment is a minimally invasive and clinically approved procedure for eliminating selected malignant cells with activation of a photosensitizer agent at a specific light. Little is known, however, about the phototoxic properties of curcumin, as a natural phenolic compound, against different types of cancers. It is generally accepted that cellular damage occurs during photo treatment. There is a limitation in using of curcumin as a drug due to its low solubility, but nanoparticles such as anionic nanoclays or layered double hydroxide (LDH) could overcome it. The aim of this study was to investigate cellular responses to curcumin‐LDH nanoparticles after photodynamic treatment of MDA‐MB‐231 human breast cancer cells. For this purpose, the MDA‐MB‐231 human breast cancer cell line treated with curcumin‐LDH nanoparticle and then irradiated (photodynamic treatment). After irradiation, lactate dehydrogenase assay, clonogenic cell survival, cell death mechanisms such as autophagy and apoptosis were determined. Cell cycle distribution after photodynamic therapy (PDT) and also intracellular reactive oxygen species (ROS) generation were measured. The result showed that curcumin‐LDH–PDT has a cytotoxic and antiprolifrative effect on MDA‐MB‐231 human breast cancer cells. Curcumin‐LDH–PDT induced autophagy, apoptosis, and G0/G1 cell cycle arrest in human breast cancer cell line. Intracellular ROS increased in MDA‐MB‐231 cancer cell line after treatment with curcumin‐LDH along with irradiation. The results suggest that curcumin‐LDH nanoparticle could be considered as a novel approach in the photodynamic treatment of breast cancer.

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Journal of Cellular Biochemistry

Tập 120 Số 4

4998-5009

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