Dual-specificity tyrosine phosphorylation-regulated kinase 1A (DYRK1A) is a potential drug target because of its role in the development of Down syndrome and Alzheimer's disease. The selective DYRK1A inhibitor 10-iodo-11-indolo[3,2-]quinoline-6-carboxylic acid (KuFal194), a large, flat and lipophilic molecule, suffers from poor water solubility, limiting its use as chemical probe in cellular assays and animal models. Based on the structure of KuFal194, 7-chloro-1-indole-3-carbonitrile was selected as fragment template for the development of smaller and less lipophilic DYRK1A inhibitors. By modification of this fragment, a series of indole-3-carbonitriles was designed and evaluated as potential DYRK1A ligands by molecular docking studies. Synthesis and in vitro assays on DYRK1A and related protein kinases identified novel double-digit nanomolar inhibitors with submicromolar activity in cell culture assays.
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http://dx.doi.org/10.3390/molecules23020064 | DOI Listing |
Immunohorizons
January 2025
Center for Translational Immunology, Benaroya Research Institute at Virginia Mason, Seattle, WA, United States.
Dysregulated differentiation of naïve CD4+ T cells into T helper 17 (Th17) cells is likely a key factor predisposing to many autoimmune diseases. Therefore, better understanding how Th17 differentiation is regulated is essential to identify novel therapeutic targets and strategies to identify individuals at high risk of developing autoimmunity. Here, we extend our prior work using chemical inhibitors to provide mechanistic insight into a novel regulator of Th17 differentiation, the kinase dual-specificity tyrosine phosphorylation-regulated kinase 1A (DYRK1A).
View Article and Find Full Text PDFDev Cell
January 2025
State Key Laboratory of Systems Medicine for Cancer, Shanghai Cancer Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China. Electronic address:
Intervening in mitochondrial oxidative phosphorylation (OXPHOS) has emerged as a potential therapeutic strategy for certain types of cancers. Employing kinome-based CRISPR screen, we find that knockout of dual-specificity tyrosine phosphorylation-regulated kinase 1A (DYRK1A) synergizes with OXPHOS inhibitor IACS-010759 in liver cancer cells. Targeting DYRK1A combined with OXPHOS inhibitors activates TGF-β signaling, which is crucial for OXPHOS-inhibition-triggered cell death.
View Article and Find Full Text PDFSci Rep
January 2025
MARBIO, UiT - The Arctic University of Norway, Breivika, 9037, Tromsø, Norway.
Pro-inflammatory cytokines, like interleukin-1 beta and interferon gamma, are known to activate signalling pathways causing pancreatic beta cell death and dysfunction, contributing to the onset of diabetes. Targeting cytokine signalling pathways offers a potential strategy to slow or even halt disease progression, reducing reliance on exogenous insulin and improving glucose regulation. This study explores the protective and proliferative effects of breitfussin C (BfC), a natural compound isolated from the Arctic marine hydrozoan Thuiaria breitfussi, on pancreatic beta cells exposed to pro-inflammatory cytokines.
View Article and Find Full Text PDFProtein Pept Lett
December 2024
Department of Pharm. Chemistry, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal-576104, Karnataka, India.
Alzheimer's disease (AD) treatments currently available have ineffective results. Previously employed Acetylcholine esterase inhibitors and memantine, an NMDA receptor antagonist, target a single target structure that plays a complex role in the multifactorial progression of disease. Memantine moderates the toxic effects of excessive glutamate activity by blocking NMDA receptors, which decreases neurotoxicity in AD, while acetylcholine esterase inhibitors function by blocking cholinergic receptors (muscarinic and nicotinic), preventing the breakdown of acetylcholine, thereby enhancing cholinergic transmission, thus improving cognitive functions in mild to moderate stages of AD.
View Article and Find Full Text PDFCell Rep Med
December 2024
Diabetes, Obesity, Metabolism Institute, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
Diabetes results from an inadequate number of insulin-producing human beta cells. There is currently no clinically available effective means to restore beta cell mass in millions of people with diabetes. Although the DYRK1A inhibitors, either alone or in combination with GLP-1 receptor agonists (GLP-1) or transforming growth factor β (TGF-β) superfamily inhibitors (LY), induce beta cell replication and increase beta cell mass, the precise mechanisms of action remain elusive.
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