Synergistic optimizations of efficacy and membrane permeability of IRAK4 inhibitors: identifying new lead compounds for anti-inflammatory therapeutics.
Kewon Kim, Ahyoung Jang, Hyeonsoo Han, Taeho Kim, Hwangseo Park, Sungwoo Hong
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引用次数: 0
Abstract
Interleukin-1 receptor-associated kinase 4 (IRAK4) is a serine/threonine kinase that plays a pivotal role in immune signalling and cytokine regulation, making it a compelling target for the treatment of inflammatory and autoimmune diseases. We initiated a drug discovery campaign based on the N2,N4-diphenylpyrimidine-2,4-diamine (DPDA) scaffold, employing an integrated strategy that combined structure-based de novo design, three-dimensional quantitative structure-activity relationship (3D-QSAR) modelling, and biochemical evaluation. This approach emphasised the optimisation of membrane permeability by controlling the 1-octanol/water partition coefficient (LogP), while also enforcing configurational constraints to enhance IRAK4-specific binding. Through iterative cycles of computational modelling and chemical synthesis, we identified 10 out of 17 newly synthesised compounds that exhibited potent IRAK4 inhibition at low-nanomolar concentrations in both enzymatic and cellular assays. Among these, compounds 10 and 13 stood out, demonstrating strong IRAK4 inhibitory activity, favourable membrane permeability, and minimal off-target kinase interactions.
期刊介绍:
Journal of Enzyme Inhibition and Medicinal Chemistry publishes open access research on enzyme inhibitors, inhibitory processes, and agonist/antagonist receptor interactions in the development of medicinal and anti-cancer agents.
Journal of Enzyme Inhibition and Medicinal Chemistry aims to provide an international and interdisciplinary platform for the latest findings in enzyme inhibition research.
The journal’s focus includes current developments in:
Enzymology;
Cell biology;
Chemical biology;
Microbiology;
Physiology;
Pharmacology leading to drug design;
Molecular recognition processes;
Distribution and metabolism of biologically active compounds.