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G protein-coupled receptor (GPCR) kinases (GRKs) regulate the desensitization and internalization of GPCRs. Two of these, GRK2 and GRK5, are upregulated in heart failure and are promising targets for heart failure treatment. Although there have been several reports of potent and selective inhibitors of GRK2 there are few for GRK5. Herein, we describe a ligand docking approach utilizing the crystal structures of the GRK2-Gβγ·GSK180736A and GRK5·CCG215022 complexes to search for amide substituents predicted to confer GRK2 and/or GRK5 potency and selectivity. From this campaign, we successfully generated two new potent GRK5 inhibitors, although neither exhibited selectivity over GRK2.
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http://dx.doi.org/10.1016/j.bmcl.2018.03.082 | DOI Listing |
J Biol Chem
September 2025
Key Laboratory of Systems Health Science of Zhejiang Province, School of Life Science, Hangzhou Institute for Advanced Study, Hangzhou 310024; University of Chinese Academy of Sciences, China. Electronic address:
Phage display libraries of human single-chain variable fragments (scFv) serve as a valuable resource for generating fully human antibodies for scientific and clinical applications. In this study, we designed and constructed a highly diverse semi-synthetic humanized scFv phage display library using an optimized Kunkel mutagenesis approach. Our optimizations eliminated residual template, enhancing mutagenesis efficiency and expanding library diversity with a reservoir capacity exceeding 10.
View Article and Find Full Text PDFInt Immunopharmacol
September 2025
Interdisciplinary eye research institute (EYE-X Institute), Bengbu Medical University, Bengbu, Anhui, China; Anhui Provincial Key Laboratory of Immunology in Chronic Diseases, Bengbu Medical University, Anhui, China. Electronic address:
Crohn's disease (CD) is a chronic inflammatory bowel condition that significantly impairs patients' quality of life. With no cure currently available, the need to discover novel biomarkers and develop effective therapeutic strategies is paramount. This study used a comprehensive machine learning approach to identify key predictive genes for CD, including S100A8, IGFBP5, CTSK, and S100P.
View Article and Find Full Text PDFPLoS One
September 2025
Computational Chemistry Laboratory, Chemistry Department, Faculty of Science, Minia University, Minia, Egypt.
Polar protic and aprotic solvents can effectively simulate the maturation of breast carcinoma cells. Herein, the influence of polar protic solvents (water and ethanol) and aprotic solvents (acetone and DMSO) on the properties of 3-(dimethylaminomethyl)-5-nitroindole (DAMNI) was investigated using density functional theory (DFT) computations. Thermodynamic parameters retrieved from the vibrational analysis indicated that the DAMNI's entropy, heat capacity, and enthalpy increased with rising temperature.
View Article and Find Full Text PDFMol Divers
September 2025
Department of Pharmacognosy, College of Pharmacy, Prince Sattam Bin Abdulaziz University, 11942, Al Kharj, Saudi Arabia.
Cyclin-dependent kinase 20 (CDK20), also known as cell cycle-related kinase (CCRK), plays a pivotal role in hepatocellular carcinoma (HCC) progression by regulating β-catenin signaling and promoting uncontrolled proliferation. Despite its emerging significance, selective small-molecule inhibitors of CDK20 remain unexplored. In this study, a known CDK20 inhibitor, ISM042-2-048, was employed as a reference to retrieve structurally similar compounds from the PubChem database using an 85% similarity threshold.
View Article and Find Full Text PDFPhytopathology
September 2025
Guizhou University, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Huaxi District, Guiyang, Guizhou Province of China, Guiyang, China, 550025;
Osthole exhibits strong inhibitory activity against phytopathogenic fungi; however, its antifungal mechanism remains unclear. This study assessed osthole's inhibitory effects on several phytopathogenic fungi, revealing a half-maximal effective concentration of 70.03 μg/ml against the hyphal growth of .
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