期刊
CHEMICAL SCIENCE
卷 7, 期 3, 页码 2353-2358出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5sc03257a
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资金
- Danish Council for Independent Research, Technology and Production Sciences, Denmark [DFF - 4184-00177]
- European Research Council [ERC-2013-CoG 617336 BTVI]
Histone deacetylase inhibitors (HDACi) and panobinostat in particular are currently in the focus of intensive investigation as latency reversing agents against the human immunodeficiency virus (HIV). Regretfully, HDACi have dose limiting side-effects making controlled, optimized methods for delivery of panobinostat highly warranted. This has proven to be highly challenging, predominantly because panobinostat has no readily available classic sites for bioconjugation. In this work, we address this challenge and present the first macromolecular prodrugs of panobinostat engineered using self immolative linkers (SIL) and a disulfide trigger for drug release upon cell entry. Synthetic methodology involved the development of a novel monomer with functionalities of SIL and activated ester for onestep polymer-analogous conjugation to drugs. In agreement with the design set forward, copolymers were stable in buffered solutions and released panobinostat at reducing conditions. Synthesized polymers were highly efficacious as latency reversing agents as monitored in three cell lines harboring latent HIV, at no expense to the cytotoxicity of treatment. The data presented herein provide broad prein vivo characterization of a promising prodrug system developed to address a global healthcare challenge, safe and efficient reversal of HIV latency.
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