A novel series of cholecystokinin-2 receptor (CCK-2R) antagonists has been identified, as exemplified by anthranilic sulfonamide 1 (pK(i)=7.6). Pharmacokinetic and stability studies indicated that this series of compounds suffered from metabolic degradation, and that both the benzothiadiazole and piperidine rings were rapidly oxidized by liver enzymes. A combination of synthesis, computational methods, (1)H NMR conformational studies, and X-ray crystallographic analyses were applied to elucidate key pharmacophore elements, and to discover analogs with improved pharmacokinetic profiles, and high receptor binding affinity and selectivity.
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http://dx.doi.org/10.1016/j.bmc.2008.01.059 | DOI Listing |
Diabetes Metab J
December 2024
Institute of Laboratory Animal Science, Chinese Academy of Medical Sciences (CAMS) & Comparative Medicine Center, Peking Union Medical College (PUMC), and Beijing Engineering Research Center for Experimental Animal Models of Human Critical Diseases, Beijing, China.
Background: Both sodium-glucose cotransporters (SGLTs) and Na+/H+ exchangers (NHEs) rely on a favorable Na-electrochemical gradient. Gastrin, through the cholecystokinin B receptor (CCKBR), can induce natriuresis and diuresis by inhibiting renal NHEs activity. The present study aims to unveil the role of renal CCKBR in diabetes through SGLT2-mediated glucose reabsorption.
View Article and Find Full Text PDFEur J Nucl Med Mol Imaging
December 2024
Department of Nuclear Medicine, Medical University of Innsbruck, 6020, Innsbruck, Austria.
Purpose: Radiolabelled minigastrin (MG) analogues targeting the cholecystokinin-2 receptor (CCK2R) have proven to be a promising approach for peptide receptor radionuclide therapy (PRRT). In this study, we report on the radiopharmaceutical development and standardization of the preparation of [Lu]Lu-DOTA-MGS5 using an automated synthesis module. Furthermore, we present the preclinical tests required to move forward towards a first therapeutic clinical trial as well as preliminary clinical dosimetry data.
View Article and Find Full Text PDFZhen Ci Yan Jiu
October 2024
School of Rehabilitation Medicine, Henan University of Chinese Medicine, Zhengzhou 450046, China.
Angew Chem Int Ed Engl
September 2024
Frontiers Science Center for New Organic Matter, State Key Laboratory of Medicinal Chemical Biology, Key Laboratory of Bioactive Materials, Ministry of Education, and College of Life Sciences, Nankai University, Tianjin, 300071, China.
Cell Death Differ
October 2024
Department of Pathophysiology, School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, China.
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