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| Content Provider | Springer Nature Link |
|---|---|
| Author | Liu, Bing Zhang, Hong Li, WenJian Li, Qiang Zhou, GuangMing Xie, Yi Hao, JiFang Min, FengLing Zhou, QingMing Duan, Xin |
| Copyright Year | 2007 |
| Abstract | The combination of ionizing radiation and gene therapy has been investigated. However, there are very few reports about the combination of heavy-ion irradiation and gene therapy. To determine if the pre-exposure to low-dose heavy ion beam enhances the suppression of AdCMV-p53 on non-small lung cancer (NSLC), the cells pre-irradiated or non-irradiated were infected with 20, 40 MOI of AdCMV-p53. Survival fraction and the relative biology effect (RBE) were determined by clonogenic assay. The results showed that the proportions of p53 positive cells in $^{12}$C$^{6+}$ beam induced AdCMV-p53 infected cells were more than 90%, which were significantly more than those in γ-ray induced AdCMV-p53 infected cells. The pre-exposure to low-dose $^{12}$C$^{6+}$ beam significantly prevented the G$_{0}$/G$_{1}$ arrest and activated G$_{2}$/M checkpoints. The pre-exposure to $^{12}$C$^{6+}$ beam significantly improved cell to apoptosis. RBEs for the $^{12}$C$^{6+}$ + AdCMV-p53 infection groups were 30%–60%, 20%–130% and 30%–70% more than those for the $^{12}$C$^{6+}$-irradiated only, AdCMV-p53 infected only, and γ-irradiation induced AdCMVp53 infected groups, respectively. The data suggested that the pre-exposure to low-dose $^{12}$C$^{6+}$ beam significantly promotes exogenous p53 expression in NSLC, and the suppression of AdCMV-p53 gene therapy on NSLC. |
| Starting Page | 221 |
| Ending Page | 230 |
| Page Count | 10 |
| File Format | |
| ISSN | 16721799 |
| Journal | Science in China Series G |
| Volume Number | 50 |
| Issue Number | 2 |
| e-ISSN | 18622844 |
| Language | English |
| Publisher | Science in China Press |
| Publisher Date | 2007-01-01 |
| Publisher Place | Beijing |
| Access Restriction | Subscribed |
| Subject Keyword | heavy-ion beam gene therapy p53 non-small lung cancer adenoviral vector low dose Physics Mechanics, Fluids, Thermodynamics Astronomy |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physics and Astronomy |
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