Design and synthesis of an HDAC inhibitor and its merger with three tubulin binders to create releasable conjugate compounds is described. The biological evaluation includes: (a) in vitro reactivity with glutathione, (b) antiproliferative activity, (c) cell cycle analysis and (d) quantification of protein acetylation. The cellular pharmacology study indicated that the HDAC-inhibitor-drug conjugates retained antimitotic and proapoptotic activity with a reduced potency.
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http://dx.doi.org/10.1016/j.bmcl.2009.09.075 | DOI Listing |
Front Immunol
November 2024
ProLynx Inc., San Francisco, CA, United States.
RSC Chem Biol
July 2024
Department of Chemical Biology, Miltenyi Biotec GmbH Friedrich-Ebert Straße 68 Bergisch Gladbach 51429 Germany
Cyclic immunofluorescence is a powerful method to generate high-content imaging datasets for investigating cell biology and developing therapies. This method relies on fluorescent labels that determine the quality of immunofluorescence and the maximum number of staining cycles that can be performed. Here we present a novel fluorescent labelling strategy, based on antibodies conjugated to a scaffold containing two distinct sites for enzymatic cleavage of fluorophores.
View Article and Find Full Text PDFJ Nanobiotechnology
December 2023
Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College, Faculty of Medicine, Chongqing University, Chongqing, 400030, China.
Atherosclerosis, cholesterol-driven plaque formation in arteries, is a complex multicellular disease which is a leading cause of vascular diseases. During the progression of atherosclerosis, the autophagic function is impaired, resulting in lipid accumulation-mediated foam cell formation. The stimulation of autophagy is crucial for the recovery of cellular recycling process.
View Article and Find Full Text PDFBiomater Sci
September 2023
National Glycoengineering Research Center and Shandong Key Laboratory of Carbohydrate Chemistry and Glycobiology, NMPA Key Laboratory for Quality Research and Evaluation of Carbohydrate-based Medicine, Shandong University, Qingdao, Shandong 266237, China.
Camptothecin (CPT) is an attractive natural drug for cancer chemotherapy. However, the poor water solubility, non-targeting feature, and adverse side effects of CPT are significant obstacles to developing an effective anticancer drug. Here, for the first time, 9-thiol-sialic acid (9-SH-Sia) is coupled to CPT by forming a disulfide releasable carbonate linkage, resulting in a novel CPT prodrug (CPT-ss-Sia) that self-assembles into nanostructures in an aqueous solution.
View Article and Find Full Text PDFJ Control Release
April 2023
Department of Bioengineering, University of Washington, USA; Molecular Engineering & Sciences Institute, University of Washington, USA. Electronic address:
Peptide cancer vaccines have had limited clinical success despite their safety, characterization and production advantages. We hypothesize that the poor immunogenicity of peptides can be surmounted by delivery vehicles that overcome the systemic, cellular and intracellular drug delivery barriers faced by peptides. Here, we introduce Man-VIPER, a self-assembling (40-50 nm micelles), pH-sensitive, mannosylated polymeric peptide delivery platform that targets dendritic cells in the lymph nodes, encapsulates peptide antigens at physiological pH, and facilitates endosomal release of antigens at acidic endosomal pH through a conjugated membranolytic peptide melittin.
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