Topic
Receptor
About: Receptor is a research topic. Over the lifetime, 159318 publications have been published within this topic receiving 8299881 citations.
Papers published on a yearly basis
Papers
More filters
TL;DR: It is shown here that angiotensin II induces the rapid phosphorylation of tyrosine in the intracellular kinases Jak2 and Tyk2 in rat aortic smooth-muscle cells and that thisosphorylation is associated with increased activity of Jak2.
Abstract: The peptide angiotensin II is the effector molecule of the reninangiotensin system. All the haemodynamic effects of angiotensin II, including vasoconstriction and adrenal aldosterone release, are mediated through a single class of cell-surface receptors known as AT1 (refs 1, 2). These receptors contain the structural features of the G-protein-coupled receptor superfamily. We show here that angiotensin II induces the rapid phosphorylation of tyrosine in the intracellular kinases Jak2 and Tyk2 in rat aortic smooth-muscle cells and that this phosphorylation is associated with increased activity of Jak2. The Jak family substrates STAT1 and STAT2 (for signal transducers and activators of transcription) are rapidly tyrosine-phosphorylated in response to angiotensin II. We also find that Jak2 co-precipitates with the AT1 receptor, indicating that G-protein-coupled receptors may be able to signal through the intracellular phosphorylation pathways used by cytokine receptors.
747 citations
TL;DR: Transgenic mice were created with cardiac-specific overexpression of the beta 2-adrenergic receptor that resulted in increased basal myocardial adenylyl cyclase activity, enhanced atrial contractility, and increased left ventricular function in vivo, suggesting a potential gene therapy approach to this disease state.
Abstract: Transgenic mice were created with cardiac-specific overexpression of the beta 2-adrenergic receptor. This resulted in increased basal myocardial adenylyl cyclase activity, enhanced atrial contractility, and increased left ventricular function in vivo; these parameters at baseline in the transgenic animals were equal to those observed in control animals maximally stimulated with isoproterenol. These results illustrate a useful approach for studying the effect of gene expression on cardiac contractility. Because chronic heart failure in humans is accompanied by a reduction in the number of myocardial beta-adrenergic receptors and in inotropic responsiveness, these results suggest a potential gene therapy approach to this disease state.
747 citations
TL;DR: This IP3/Ca2+ pathway is a remarkably versatile signalling system that has been adapted to control processes as diverse as fertilization, proliferation, contraction, cell metabolism, vesicle and fluid secretion and information processing in neuronal cells.
747 citations
TL;DR: It is demonstrated that Klotho and βKlotho, homologous single-pass transmembrane proteins that bind to FGFRs, are required for metabolic activity of FGF23 and FGF21, respectively.
747 citations
TL;DR: DHA, a long-chain polyunsaturated fatty acid that is highly enriched in the adult mammalian brain, is identified as a factor in brain tissue from adult mice that activates RXR in cell-based assays, suggesting that DHA may influence neural function through activation of an RXR signaling pathway.
Abstract: The retinoid X receptor (RXR) is a nuclear receptor that functions as a ligand-activated transcription factor. Little is known about the ligands that activate RXR in vivo. Here, we identified a factor in brain tissue from adult mice that activates RXR in cell-based assays. Purification and analysis of the factor by mass spectrometry revealed that it is docosahexaenoic acid (DHA), a long-chain polyunsaturated fatty acid that is highly enriched in the adult mammalian brain. Previous work has shown that DHA is essential for brain maturation, and deficiency of DHA in both rodents and humans leads to impaired spatial learning and other abnormalities. These data suggest that DHA may influence neural function through activation of an RXR signaling pathway.
746 citations