scholarly journals Enhanced production of reactive oxygen species in HeLa cells under concurrent low‑dose carboplatin and Photofrin� photodynamic therapy

2018 ◽  
Author(s):  
Younshick Choi ◽  
Ji‑Eun Chang ◽  
Sanghoon Jheon ◽  
Sei‑Jun Han ◽  
Jong‑Ki Kim
Keyword(s):  
Reactive Oxygen Species ◽  
Photodynamic Therapy ◽  
Hela Cells ◽  
Low Dose ◽  
Reactive Oxygen ◽  
Oxygen Species ◽  
Enhanced Production

Reactive oxygen species generated in mitochondria induce fragmentation of the mitochondrial reticulum in HeLa cells

2008 ◽  
Vol 420 (1) ◽  
pp. 221-223 ◽  
Author(s):  
O. K. Nepryakhina ◽  
A. Yu. Kuznetsova ◽  
K. G. Lyamzaev ◽  
D. S. Izyumov ◽  
O. Yu. Pletjushkina ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Hela Cells ◽  
Reactive Oxygen ◽  
Oxygen Species ◽  
Mitochondrial Reticulum

scholarly journals Rare-Earth-Doped Calcium Carbonate Exposed to X-ray Irradiation to Induce Reactive Oxygen Species for Tumor Treatment

2019 ◽  
Vol 20 (5) ◽  
pp. 1148 ◽  
Author(s):  
Chun-Chen Yang ◽  
Wei-Yun Wang ◽  
Feng-Huei Lin ◽  
Chun-Han Hou
Keyword(s):  
Reactive Oxygen Species ◽  
Photodynamic Therapy ◽  
Tumor Growth ◽  
Light Source ◽  
Reactive Oxygen ◽  
Blood Analysis ◽  
Oxygen Species ◽  
Tumor Treatment ◽  
X Ray

Conventional photodynamic therapy (PDT) is limited by its penetration depth due to the photosensitizer and light source. In this study, we developed X-ray induced photodynamic therapy that applied X-ray as the light source to activate Ce-doped CaCO3 (CaCO3:Ce) to generate an intracellular reactive oxygen species (ROS) for killing cancer cells. The A549 cell line was used as the in vitro and in vivo model to evaluate the efficacy of X-ray-induced CaCO3:Ce. The cell viability significantly decreased and cell cytotoxicity obviously increased with CaCO3:Ce exposure under X-ray irradiation, which is less harmful than radiotherapy in tumor treatment. CaCO3:Ce produced significant ROS under X-ray irradiation and promoted A549 cancer cell death. CaCO3:Ce can enhance the efficacy of X-ray induced PDT, and tumor growth was inhibited in vivo. The blood analysis and hematoxylin and eosin stain (H&E) stain fully supported the safety of the treatment. The mechanisms underlying ROS and CO2 generation by CaCO3:Ce activated by X-ray irradiation to induce cell toxicity, thereby inhibiting tumor growth, is discussed. These findings and advances are of great importance in providing a novel therapeutic approach as an alternative tumor treatment.

scholarly journals Reactive Oxygen Species Explicit Dosimetry for Photofrin‐mediated Pleural Photodynamic Therapy

2020 ◽  
Vol 96 (2) ◽  
pp. 340-348 ◽  
Author(s):  
Yi Hong Ong ◽  
Andreaa Dimofte ◽  
Michele M. Kim ◽  
Jarod C. Finlay ◽  
Tianqi Sheng ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Photodynamic Therapy ◽  
Reactive Oxygen ◽  
Oxygen Species
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