Elisa N. Stephens, Liang-Chieh Chen, Arshad J. Ansari, Kaiyu Shen, Lei Zhang, Steven G. Guillen, Clay C. C. Wang and Yong Zhang*,
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Discovery of PARP1-Sparing Inhibitors for Protein ADP-Ribosylation
Poly-ADP-ribose polymerases (PARPs) that catalyze cellular ADP-ribosylation play important roles in human health. PARP inhibitors have found success in the clinic for cancer treatment. However, isoform-specific inhibitors are needed for improved safety. Here, we report the unexpected discovery of nicotinamide mimics that block non-PARP1-catalyzed ADP-ribosylation at micromolar concentrations. These PARP1-sparing PARP inhibitors represent first-in-class probes for ADP-ribosylation, shedding light on the selective inhibition of PARPs.
期刊介绍：
ACS Medicinal Chemistry Letters is interested in receiving manuscripts that discuss various aspects of medicinal chemistry. The journal will publish studies that pertain to a broad range of subject matter, including compound design and optimization, biological evaluation, drug delivery, imaging agents, and pharmacology of both small and large bioactive molecules. Specific areas include but are not limited to:
Identification, synthesis, and optimization of lead biologically active molecules and drugs (small molecules and biologics)
Biological characterization of new molecular entities in the context of drug discovery
Computational, cheminformatics, and structural studies for the identification or SAR analysis of bioactive molecules, ligands and their targets, etc.
Novel and improved methodologies, including radiation biochemistry, with broad application to medicinal chemistry
Discovery technologies for biologically active molecules from both synthetic and natural (plant and other) sources
Pharmacokinetic/pharmacodynamic studies that address mechanisms underlying drug disposition and response
Pharmacogenetic and pharmacogenomic studies used to enhance drug design and the translation of medicinal chemistry into the clinic
Mechanistic drug metabolism and regulation of metabolic enzyme gene expression
Chemistry patents relevant to the medicinal chemistry field.
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