1.中国工程物理研究院核物理与化学研究所 绵阳 621900
宋宏涛,男,1982年6月出生,2004年毕业于北京师范大学,应用化学专业,助理研究员,研究方向:同位素技术,Email: yinyishushengsht@163.com
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宋宏涛, 魏洪源, 杨玉青, 等. 99mTc(O)(PNA-dp)辐射切割质粒DNA的性能研究[J]. 辐射研究与辐射工艺学报, 2011,29(4):214-218.
SONG Hongtao, WEI Hongyuan, YANG Yuqing, et al. Studies on the characteristics of DNA cleavage under the action of 99mTc(O)(PNA-dp)[J]. Journal of Radiation Research and Radiation Processing, 2011,29(4):214-218.
宋宏涛, 魏洪源, 杨玉青, 等. 99mTc(O)(PNA-dp)辐射切割质粒DNA的性能研究[J]. 辐射研究与辐射工艺学报, 2011,29(4):214-218. DOI:
SONG Hongtao, WEI Hongyuan, YANG Yuqing, et al. Studies on the characteristics of DNA cleavage under the action of 99mTc(O)(PNA-dp)[J]. Journal of Radiation Research and Radiation Processing, 2011,29(4):214-218. DOI:
肽核酸(PNA)分子具有特异基因靶向亲和性,用放射性核素标记后,可达到肿瘤靶向和对非靶组织最小损伤的目的,对于基因水平的肿瘤治疗具有十分重要的意义。本工作探索了,99m,Tc标记T基PNA单体所得配合物,99m,Tc(O)(PNA-dp)对常用基因靶向DNA的切割效果。结果表明,配合物在室温密封放置6 h,放化纯度大于90%,具有很好的稳定性;无溶血现象,可注射;在1 h即对质粒DNA表现出明显的切割效果,其机理应为,99m,Tc的射线辐射与PNA-dp的协同作用。
Peptide nucleic acid can be used in the field of tumor gene therapy with minimal non-target damage if it binds to gene with high sequence specificity and selectivity when labeled with radionuclides. In this paper,99m,Tc (O) (PNA-dp) was synthesized, and the characteristics of DNA-cleavage were studied. It shows that the radiochemical purity remains over 90% after 6 h storage at room temperature, and the complex can be injected directly. Besides, the obvious DNA cleavage effect can be found after 1 h, and the mechanism of which maybe the cooperation of PNA-dp and the radiation of ,99m,Tc.
99mTc肽核酸DNA切割pUC 019 DNA
99mTcPeptide nucleic acid (PNA)DNA cleavagepUC 019 DNA
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