Multimodal image-guided enzyme/prodrug cancer therapy

被引:46
|
作者
Li, Cong [1 ]
Winnard, Paul T., Jr. [1 ]
Takagi, Tomoyo [1 ]
Artemov, Dmitri [1 ]
Bhujwalla, Zaver M. [1 ]
机构
[1] Johns Hopkins Univ, Sch Med, Russell H Morgan Dept Radiol & Radiol Sci, JHU ICMIC Program, Baltimore, MD 21205 USA
关键词
MAGNETIC-RESONANCE-SPECTROSCOPY; COLI CYTOSINE DEAMINASE; 5-FLUOROURACIL; PERMEABILITY; MUTAGENESIS; ACTIVATION; TUMORS;
D O I
10.1021/ja066199i
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The conjugate of bacterial cytosine deaminase (bCD) and poly-l-lysine (PLL) that was functionalized with biotin, rhodamine, and Gd3+-DOTA was synthesized and characterized. It demonstrated high relaxivity, improved enzymatic specificity to prodrug 5-fluorocytosine, low cytotoxicity, efficient cell uptake, and high enzymatic stability in fresh mouse serum and human breast cancer cell culture. Copyright © 2006 American Chemical Society.
引用
收藏
页码:15072 / 15073
页数:2
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