Photochemical Amplifier Based on Self-Immolative Dendritic Spacers
作者:Agonist Kastrati、Christian G. Bochet
DOI:10.1021/acs.joc.9b00651
日期:2019.6.21
A self-immolative dendritic structure was synthesized. It is based on phenol derivatives with three hydroxymethyl arms at both ortho and para positions of the core unit, potentially releasing up to 27 leaving groups in a third-generation dendrimer. The triggering event is the photolysis of a photosentive ortho-nitrobenzyl group. In doing so, we expected to transform a weak chemical or photochemical
作者:Xuyu Tan、Ben B. Li、Xueguang Lu、Fei Jia、Clarissa Santori、Priyanka Menon、Hui Li、Bohan Zhang、Jean J. Zhao、Ke Zhang
DOI:10.1021/jacs.5b00795
日期:2015.5.20
The simultaneous intracellular delivery of multiple types of payloads, such as hydrophobic drugs and nucleic acids, typically requires complex carrier systems. Herein; we demonstrate a, self-deliverable form of nucleic acid-drug nanostructure that is composed almost entirely of payload molecules. Upon light activation, the nanostructure sheds the nucleic acid shell, while the core, which consists of prodrug molecules, disintegrates via an irreversible self-immolative process, releasing free drug molecules and small molecule fragments. We demonstrate that the nanostructures exhibit enhanced stability against DNase I compared with free DNA, and that the model drug (camptothecin) released exhibits similar efficacy as free, unmodified drugs toward cancer cells.