Several, if not all adrenergic β-blockers (β-Bs), accumulate progressively inside secretory vesicles in a time- and concentration-dependent manner, and could be considered to be false neurotransmitters. This transmitter effect is most likely unrelated to their ability to block adrenergic receptors, but it could explain the delay in lowering arterial pressure in hypertensive patients. We have developed a new drug to monitor the accumulation of β-Bs inside living cells, RCTM-3, which fluoresces in the visible spectrum. Here we describe the procedure to synthesize this new compound, as well as its fluorescent properties, pharmacological profile and its accumulation inside the secretory vesicles of PC12 cells.
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http://dx.doi.org/10.3390/ph4050713 | DOI Listing |
J Biol Chem
December 2024
Université Côte d'Azur, CNRS, INSERM, Institut de Pharmacologie Moléculaire et Cellulaire, Valbonne, France. Electronic address:
Biomark Res
October 2024
Department of Medical Pathology and Laboratory Medicine, University of California, Davis, Room 3400B, Research Building III, 4645 2nd Ave, Sacramento, CA, 95817, USA.
Background: Hepatocellular carcinoma (HCC) arising from metabolic dysfunction-associated steatohepatitis (MASH) presents a significant clinical challenge, particularly given the prevalence of the Western diet (WD). The influence of diet on the tumor microenvironment remains poorly understood. Galectin-1 (Gal-1) is a biomarker for HCC and has a crucial role in liver carcinogenesis.
View Article and Find Full Text PDFFront Mol Neurosci
August 2024
Institute of Pharmacology, Medical University of Vienna, Vienna, Austria.
As the first member of the solute carrier 6 (SLC6) protein family, the γ-aminobutyric acid (GABA) transporter 1 (GAT1, ), plays a pivotal role in the uptake of GABA from the synaptic cleft into neurons and astrocytes. This process facilitates the subsequent storage of GABA in presynaptic vesicles. The human gene is highly susceptible to missense mutations, leading to severe clinical outcomes, such as epilepsy, in the afflicted patients.
View Article and Find Full Text PDFJ Eukaryot Microbiol
November 2024
State Key Laboratory of Resource Insects, Southwest University, Chongqing, China.
Microsporidia, a group of unicellular eukaryotic parasites, rely intensely on secretory effectors for successful invasion and proliferation within host cells. This review focuses on the identification, characterization, and functional roles of effectors, including secretory proteins and microRNAs. The adhesion proteins like the Ricin-B-lectin facilitate initial invasion, which binds to the host cell surface.
View Article and Find Full Text PDFFertil Steril
August 2024
Gynecology Research Unit, Institute of Experimental and Clinical Research, Université Catholique de Louvain, Brussels, Belgium; Gynecology Department, Cliniques Universitaires Saint-Luc, Brussels, Belgium. Electronic address:
Objective: To create a novel, more advanced in vitro model of human endometrium, using so-called assembloids, looking to explore endometrial receptivity in adenomyosis.
Design: Evaluation of assembloid responsiveness to hormonal stimulation by immunohistochemistry, enzyme-linked immunosorbent assay, and scanning electron microscopy.
Setting: University-based research unit in gynecology.
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