Structure-activity relationship studies in a series of diarylpyrazolyl thiadiazoles identified cannabinoid-1 receptor antagonists with excellent potency and selectivity. Based on its exceptional in vivo efficacy in animal models and its favorable pharmacokinetic and toxicological profiles, 2-(4-((1H-1,2,4-triazol-1-yl)methyl)-5-(4-bromophenyl)-1-(2-chlorophenyl)-1H-pyrazol-3-yl)-5-tert-butyl-1,3,4-thiadiazole (GCC2680) was selected as a preclinical candidate for the treatment of obesity.
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http://dx.doi.org/10.1016/j.bmc.2010.07.013 | DOI Listing |
Proteins
November 2024
Department of Chemistry, University of Southern California, Los Angeles, California, USA.
G-protein-coupled receptors (GPCRs) constitute one of the most prominent families of integral membrane receptor proteins that mediate most transmembrane signaling processes. Malfunction of these signal transduction processes is one of the underlying causes of many human pathologies (Parkinson's, Huntington's, heart diseases, etc), provoking that GPCRs are the largest family of druggable proteins. However, these receptors have been targeted traditionally by orthosteric ligands, which usually causes side effects due to the simultaneous targeting of homologous receptor subtypes.
View Article and Find Full Text PDFJ Cardiopulm Rehabil Prev
November 2024
Author Affiliations: Marshfield Clinic Research Institute, Marshfield, Wisconsin (Dr Rezkalla); Cardiovascular Research Institute, Huntington Medical Research Institutes, Pasadena, California (Dr Kloner); and Cardiovascular Division, Dept. of Medicine, Keck School of Medicine of University of Southern California, Los Angeles, California (Dr Kloner).
Objective: Cannabinoids exert their effects on body tissues via cannabinoid 1 (CB1) and cannabinoid 2 (CB2) receptors. Receptors are present in brain, myocardium, vascular endothelium, platelets, and adipose tissues. Under normal physiologic conditions, endocannabinoid effects are minimal.
View Article and Find Full Text PDFACS Chem Neurosci
December 2024
iHuman Institute, ShanghaiTech University, Shanghai 200031, China.
The cannabinoid 1 receptor (CB1) is highly expressed in the central nervous system, where its physiological functions include the regulation of energy balance, pain, and addiction. Herein, we develop and validate a technique to use magnetic resonance imaging (MRI) to investigate the distribution of CB1 across mouse brains with high spatial resolution, expanding previously described in vitro studies and in vivo studies with positron emission tomography (PET). To support the MRI investigations, we developed a ligand that is specific for in vivo neuroimaging of CB1.
View Article and Find Full Text PDFEur J Pharmacol
December 2024
Discipline of Human Physiology, Flinders Health & Medical Research Institute, College of Medicine and Public Health, Flinders University, South Australia, Australia. Electronic address:
Cannabinoid agonists can potentially ameliorate lower urinary tract symptoms (LUTS), including pain associated with interstitial cystitis/bladder pain syndrome (IC/BPS). This study aims to determine the contributions of the cannabinoid 1 receptors (CBRs) and CBRs in regulating the activity of different functional classes of afferents, comparing normal healthy bladder with bladders from guinea pigs with protamine/zymosan-induced cystitis. The mechanosensitivity of different functional afferent classes was determined by ex vivo single-unit extracellular recordings.
View Article and Find Full Text PDFFront Toxicol
October 2024
CReDO Science, Austin, TX, United States.
Cannabinoid hyperemesis syndrome presents as a complex of symptoms and signs encompassing nausea, vomiting, abdominal pain, and hot water bathing behavior, most typically in a heavy cannabis user. Its presentation is frequently associated with hypothalamic-pituitary-adrenal axis activation with stress and weight loss. Recent investigation has identified five statistically significant mutations in patients distinct from those of frequent cannabis users who lack the symptoms, affecting the TRPV1 receptor, two dopamine genes, the cytochrome P450 2C9 enzyme that metabolizes tetrahydrocannabinol, and the adenosine triphosphate-binding cassette transporter.
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