14-3-3 proteins play a crucial role in the regulation of protein-protein interactions, impacting various cellular processes and disease mechanisms. Recent advancements have led to the development of stabilizers that enhance the binding of 14-3-3 proteins to clients, presenting promising therapeutic potentials. This perspective provides an updated overview of the latest developments in the field of 14-3-3 stabilizers, with a focus on their design, synthesis, and biological evaluation. We discuss the structural basis for the interaction between 14-3-3 proteins and their ligands, highlighting key modifications that enhance binding affinity and selectivity. Additionally, we explore the therapeutic applications of 14-3-3 stabilizers across major therapeutic areas such as cancer, metabolic disorders, and neurodegenerative diseases. By summarizing recent research findings and technological advancements, this perspective aims to shed light on the current state of 14-3-3 stabilizer developments and outline future directions for optimizing these compounds as effective therapeutic agents.
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http://dx.doi.org/10.1021/acs.jmedchem.4c01936 | DOI Listing |
RSC Med Chem
February 2025
Laboratory of Chemical Biology, Department of Biomedical Engineering and Institute for Complex Molecular Systems, Eindhoven University of Technology Groene Loper 3 5612 AE Eindhoven The Netherlands
Protein-protein interactions (PPIs) are key regulators of various cellular processes. Modulating PPIs with small molecules has gained increasing attention in drug discovery, particularly targeting the 14-3-3 protein family, which interacts with several hundred client proteins and plays a central role in cellular networks. However, targeting a specific PPI of the hub protein 14-3-3, with its plethora of potential client proteins, poses a significant selectivity challenge.
View Article and Find Full Text PDFPlant J
March 2025
A.N. Bach Institute of Biochemistry, Federal Research Center of Biotechnology of the Russian Academy of Sciences, 119071, Moscow, Russia.
Interaction of dimeric 14-3-3 proteins with phosphotargets regulates various physiological processes in plants, from flowering to transpiration and salt tolerance. Several genes express distinct 14-3-3 "isoforms," particularly numerous in plants, but these are unevenly studied even in model species. Here we systematically investigated twelve 14-3-3 isoforms from Arabidopsis thaliana.
View Article and Find Full Text PDFNat Commun
March 2025
Diabetes, Obesity and Metabolism Institute and Mindich Child Health and Development Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
The Carbohydrate Response Element Binding Protein (ChREBP) is a glucose-responsive transcription factor (TF) with two major splice isoforms (α and β). In chronic hyperglycemia and glucolipotoxicity, ChREBPα-mediated ChREBPβ expression surges, leading to insulin-secreting β-cell dedifferentiation and death. 14-3-3 binding to ChREBPα results in cytoplasmic retention and suppression of transcriptional activity.
View Article and Find Full Text PDFPlant Cell Physiol
February 2025
Department of Botany, University of Calcutta, 35 Ballygunge Circular Road, Kolkata-700019, West Bengal, India.
Under changing environmental conditions, salt stress is a serious threat to agriculture. The R40 family lectins are known to be associated with osmotic stress response, although their mechanism of action remains unclear. Here, we report that Osr40g3, upregulated by salt, improves salt tolerance but causes pollen sterility and poor seed development in rice when constitutively overexpressed.
View Article and Find Full Text PDFInt J Biol Macromol
February 2025
Central European Institute of Technology, Masaryk University, Kamenice 5, Brno 625 00, Czechia; National Centre for Biomolecular Research, Faculty of Science, Masaryk University, Kamenice 5, Brno 625 00, Czechia; Department of Chemistry, Faculty of Science, Masaryk University, Kamenice 5, Brno 625 00, Czechia. Electronic address:
The main role of dimeric 14-3-3 proteins is to modulate the activity of several hundred binding partners by interacting with phosphorylated residues of the partner proteins, often located in disordered regions. The inherent flexibility or large size of 14-3-3 complexes hampers their structural characterization by X-ray crystallography, cryo-electron microscopy (EM) and traditional solution nuclear magnetic resonance (NMR) spectroscopy. Here, we employ solution 1D F-Trp NMR spectroscopy to characterize substrate binding and dimerization of 14-3-3 proteins, focusing on 14-3-3ζ - an abundant human isoform as an example.
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