| Title | External-Radiation-Induced Local Hydroxylation Enables Remote Release of Functional Molecules in Tumors |
| Authors | Fu, Qunfeng Li, Hongyu Duan, Dongban Wang, Changlun Shen, Siyong Ma, Huimin Liu, Zhibo |
| Affiliation | Peking Univ, Beijing Natl Lab Mol Sci, Radiat Chem Key Lab Fundamental Sci, Coll Chem & Mol Engn, Beijing 100871, Peoples R China Tsinghua Univ, Peking Univ, Ctr Life Sci, Beijing 100871, Peoples R China Chinese Acad Sci, Beijing Natl Lab Mol Sci, Key Lab Analyt Chem Living Biosyst, Inst Chem, Beijing 100190, Peoples R China Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| Keywords | ACTIVATION BIOLOGY CANCER PROBE |
| Issue Date | Sep-2020 |
| Publisher | ANGEWANDTE CHEMIE-INTERNATIONAL EDITION |
| Abstract | Radiation-induced cleavage for controlled release in vivo is yet to be established. We demonstrate the use of 3,5-dihydroxybenzyl carbamate (DHBC) as a masking group that is selectively and efficiently removed by external radiation in vitro and in vivo. DHBC reacts mainly with hydroxyl radicals produced by radiation to afford hydroxylation atpara/orthopositions, followed by 1,4- or 1,6-elimination to rescue the functionality of the client molecule. The reaction is rapid and can liberate functional molecules under physiological conditions. This controlled-release platform is compatible with living systems, as demonstrated by the release of a rhodol fluorophore derivative in cells and tumor xenografts. The combined benefits of the robust caging group, the good release yield, and the independence of penetration depth make DHBC derivatives attractive chemical caging moieties for use in chemical biology and prodrug activation. |
| URI | http://hdl.handle.net/20.500.11897/607580 |
| ISSN | 1433-7851 |
| DOI | 10.1002/anie.202005612 |
| Indexed | SCI(E) |
| Appears in Collections: | å å¦ä¸ å å å·¥ç¨ å¦é ¢ 生命科学学院 |
