Evaluation of the effects of photodynamic therapy consisted of the blue laser and zinc oxide QDs on MDA-MB-231 cancer cells by inhibiting cancer markers and inducing apoptosis

The increasing number of cancer patients has cast attention on developing new anti-cancer modalities. Photodynamic therapy is a safe anti-cancer approach, which encompasses (1) local administration of a photosensitizer and (2) light irradiation. Zinc oxide (ZnO) quantum dots (QDs) are photosensitize...

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Bibliographic Details
Published in:Lasers in medical science 2024-01, Vol.39 (1), p.28-28, Article 28
Main Authors: Javani Jouni, Fatemeh, Rastegar-Pouyani, Nima, Najjar, Nabaa, Nasirpour, Mohammad, Payez, Atefeh, Kashi, Giti, Zafari, Jaber
Format: Article
Language:English
Subjects:
Antineoplastic Agents - pharmacology
Apoptosis
Bcl-2 protein
Breast cancer
Breast Neoplasms - drug therapy
Breast Neoplasms - genetics
Cancer
Cancer therapies
Caspase-3
Caspase-9
Cytotoxicity
Dentistry
Female
Humans
Irradiation
Lasers
Light irradiation
Lipid peroxidation
Lipids
Medicine
Medicine & Public Health
Optical Devices
Optics
Original Article
p53 Protein
Peroxidation
Photochemotherapy
Photodynamic therapy
Photonics
Photosensitizing Agents - pharmacology
Quantum Dots
Quantum Optics
Synergistic effect
Zinc oxide
Zinc Oxide - pharmacology
Zinc oxides
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Summary:The increasing number of cancer patients has cast attention on developing new anti-cancer modalities. Photodynamic therapy is a safe anti-cancer approach, which encompasses (1) local administration of a photosensitizer and (2) light irradiation. Zinc oxide (ZnO) quantum dots (QDs) are photosensitizers that can be utilized for this purpose. In the present study, to better appreciate the likely more efficient cytotoxic effect of the combination of ZnO QDs and the visible 470-nm blue light in comparison to the QDs alone, several assays were to be conducted upon breast cancer MDA-MB 231 cells. MTT assay showed that in certain groups the combination displayed higher cytotoxic effects compared to those following QD treatment alone. LDH leakage and lipid peroxidation rates by the combination were significantly higher than treatment with either the blue laser or QDs. Although the combination managed to meaningfully reduce the number of colonies and CAT activity compared to QD treatment, there were no palpable differences between them. Lastly, the combination was able to increase the apoptotic genes, including BAX, TP53, caspase 3, and caspase 9 compared to QD, while, in the case of Bcl-2, an anti-apoptotic gene, none of the groups managed to make any tangible differences on its expression levels. Our findings propose that there may be synergistic effects between the blue laser and QD that can possibly be adopted in anti-cancer therapy in the future. However, further investigations regarding this matter are of the essence.
ISSN:1435-604X
0268-8921
1435-604X
DOI:10.1007/s10103-024-03977-5