Journal
JOURNAL OF BIOLOGICAL INORGANIC CHEMISTRY
Volume 25, Issue 1, Pages 39-48Publisher
SPRINGER
DOI: 10.1007/s00775-019-01730-w
Keywords
Photodynamic therapy; Radiotherapy; Gallium phthalocyanine chloride; Apoptosis; Breast cancer
Funding
- Iran University of Medical Sciences [28843]
Ask authors/readers for more resources
In this study, we evaluated the effect of gallium phthalocyanine chloride (GaPcCl) as a radio- and photosensitizer on MCF-7 breast cancer cell line. We incubated cells with GaPcCl in different concentrations (from 3.125 to 100 mu g/ml). Then cells in separate groups were exposed to different light doses (1.8 and 2.8 J/cm(2)) at wavelength of 660 nm and 2-Gy X-ray ionizing radiation, alone and in combination. Finally, cell survival and apoptosis were determined by MTT assay and flow cytometry, respectively. The results showed that the deactivated GaPcCl at concentration of 100 mu g/ml reduces the cell viability up to 15%. While, photoactivated GaPcCl (100 mu g/ml) at light dose of 2.8 J/cm(2) significantly decreases cell viability up to 55.3%. Although MTT assay demonstrated that GaPcCl is not act as a radiosensitizer, flow cytometry showed significant increase in cell apoptosis when GaPcCl was exposed to 2 Gy X-ray. Using of GaPcCl-PDT (photodynamic therapy) integration with X-ray substantially increased cell death in comparison to the absence of X-ray. Furthermore, flow cytometry displayed a significant increase in apoptosis cells (especially late apoptosis) in this combination therapy. Our result proved that GaPcCl is an effective photosensitizer in MCF-7 human breast cancer cell line. The combination of GaPcCl-PDT and radiotherapy can be an efficient treatment against cancer. This approach needs further investigations on animal models for human purposes. [GRAPHICS] .
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available