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| A comparative study on the enhancement efficacy of specific and non-specific iron chelators for protoporphyrin IX production and photosensitization in HaCat cells | |
| Xia, Y. M. | |
| 2009 | |
| Source Publication | Journal of Huazhong University of Science and Technology-Medical Sciences
 |
| ISSN | 1672-0733 |
| Volume | 29Issue:6Pages:765-770 |
| Abstract | The iron chelators can be utilized in target cells to improve 5-aminolaevulinic acid (ALA)-based photodynamic therapy (PDT). The purpose of this study is to compare the effect of two kinds of iron chelators, desferrioxamine (DFO) and ethylenediaminetetraacetic acid (EDTA) on the enhancement of ALA-PDT. HaCat cells were cultured in medium containing 2.0 mmol/L of ALA and 0.5 mmol/L of DFO or EDTA. After 3-h incubation in the dark, the concentration of cellular protoporphyrin IX (PpIX) was detected by high performance liquid chromatography (HPLC), and the fluorescence of PpIX was observed at 630 nm emission under confocal laser scanning microscope. For PDT, HaCat cells were irradiated using 632.8 nm laser, and the fractions of apoptotic and necrotic cells were flow cytometrically assayed. Related differences in morphology and ultrastructure of Ha-Cat cells were observed using optical microscope or transmission electron microscope. Compared to incubation with ALA alone, the addition of DFO or EDTA increased the concentration of cellular PpIX and the fluorescent density of PpIX, and also increased cell death ratio after PDT. PDT using ALA plus DFO produced the highest cellular PpIX level, greatest cell death ratio and most severe structural damage to the cells. It was concluded that both DFO and EDTA could enhance ALA-based PpIX production and PDT. Compared to the non-specific iron chelator of EDTA, the specific chelator, DFO, showed more potential for the enhancement. |
| Language | 英语 |
| Document Type | 期刊论文 |
| Identifier | https://ir.xtbg.ac.cn/handle/353005/8803 |
| Collection | 公共技术服务中心主要仪器相关文献_激光共聚焦显微镜 |
| Recommended Citation GB/T 7714 | Xia, Y. M.. A comparative study on the enhancement efficacy of specific and non-specific iron chelators for protoporphyrin IX production and photosensitization in HaCat cells[J]. Journal of Huazhong University of Science and Technology-Medical Sciences,2009,29(6):765-770. |
| APA | Xia, Y. M..(2009).A comparative study on the enhancement efficacy of specific and non-specific iron chelators for protoporphyrin IX production and photosensitization in HaCat cells.Journal of Huazhong University of Science and Technology-Medical Sciences,29(6),765-770. |
| MLA | Xia, Y. M.."A comparative study on the enhancement efficacy of specific and non-specific iron chelators for protoporphyrin IX production and photosensitization in HaCat cells".Journal of Huazhong University of Science and Technology-Medical Sciences 29.6(2009):765-770. |
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| A comparative study （441KB） | 开放获取 | CC BY-NC-SA | View Download | |||
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