Showing 1-30 of 30 resultados for "U6756"
Cláudio Roque et al.
Journal of neurochemistry, 149(1), 27-40 (2018-12-21)
Selective activation of the G protein-coupled estrogen receptor has been proposed to avoid some of the side effects elicited by the activation of classical estrogen receptors α and β. Although its contribution to neuroprotection triggered by estradiol in brain disorders...
Rosario Villegas et al.
The Journal of neuroscience : the official journal of the Society for Neuroscience, 34(21), 7179-7189 (2014-05-23)
Axonal degeneration represents an early pathological event in neurodegeneration, constituting an important target for neuroprotection. Regardless of the initial injury, which could be toxic, mechanical, metabolic, or genetic, degeneration of axons shares a common mechanism involving mitochondrial dysfunction and production...
Zuojia Chen et al.
Immunity, 54(1), 151-163 (2020-11-22)
The gastrointestinal tract is known as the largest endocrine organ that encounters and integrates various immune stimulations and neuronal responses due to constant environmental challenges. Enterochromaffin (EC) cells, which function as chemosensors on the gut epithelium, are known to translate...
Jiyoon Kim et al.
Current biology : CB, 30(9), 1614-1625 (2020-03-15)
Cells can sense and respond to various mechanical stimuli from their surrounding environment. One of the explanations for mechanosensitivity, a lipid-bilayer model, suggests that a stretch of the membrane induced by mechanical force alters the physical state of the lipid...
Banu Aydın et al.
Leukemia research, 37(9), 1144-1149 (2013-06-27)
Muscarinic acetylcholine receptors (mAChRs) are members of the superfamily of G protein coupled receptors (GPCRs). Muscarinic receptors are relatively abundant in the central nervous system and in the peripheral parasympathetic nervous system. Several studies have suggested that muscarinic receptors also...
J E Bleasdale et al.
The Journal of pharmacology and experimental therapeutics, 255(2), 756-768 (1990-11-01)
Aggregation of human platelets induced by a variety of agonists was inhibited by 1-[6-[[17 beta-3-methoxyestra-1,3,5(10)-trien-17-yl] amino]hexyl]-1H-pyrrole-2,5-dionel (U-73122) (IC50 values 1-5 microM), but not by the close analog 1-[6-[[17 beta-3-methoxyestra- 1,3,5(10)-trien-17-yl]amino]hexyl]-2,5-pyrrolidine-dione (U-73343) in which pyrrolidinedione was substituted for pyrroledione. Inhibition by...
Qiaosheng Wang et al.
International journal of molecular medicine, 44(3), 1078-1090 (2019-09-17)
The aim of the present study was to explore the possible mechanisms by which hypertonic saline (HS) effectively ameliorates cerebral oedema via the vascular endothelial growth factor receptor 2 (VEGFR2)‑mediated endothelial nitric oxide synthase (eNOS) pathway of endothelial cells in...
Wei Fu et al.
Frontiers in endocrinology, 10, 930-930 (2020-02-23)
Plasma levels of PCSK9 are significantly higher in postmenopausal women. Pharmacologically increased estrogen levels have been shown to lower PCSK9 and LDL-C levels in animals and humans. The action of estrogen suggests that it has the ability to prevent PCSK9-mediated...
R C Smallridge et al.
Endocrinology, 131(4), 1883-1888 (1992-10-01)
TRH increases cytosolic-free calcium ([Ca2+]i) by activating phospholipase C(PL-C), which induces phosphoinositol hydrolysis, leading to Ca2+ mobilization from inositol trisphosphate (IP3) sensitive stores, and by increasing Ca2+ influx. Increases in [Ca2+]i stimulate PRL secretion. We investigated the effects of U-73122...
Xiaodong Feng et al.
Cancer cell, 35(3), 457-472 (2019-02-19)
Activating mutations in GNAQ/GNA11, encoding Gαq G proteins, are initiating oncogenic events in uveal melanoma (UM). However, there are no effective therapies for UM. Using an integrated bioinformatics pipeline, we found that PTK2, encoding focal adhesion kinase (FAK), represents a...
Johannes Keller et al.
Nature communications, 5, 5215-5215 (2014-10-22)
The hormone calcitonin (CT) is primarily known for its pharmacologic action as an inhibitor of bone resorption, yet CT-deficient mice display increased bone formation. These findings raised the question about the underlying cellular and molecular mechanism of CT action. Here...
Eun-Hee Park et al.
Canadian journal of microbiology, 60(12), 865-868 (2014-11-21)
In our previous study, γ-glutamyl transpeptidase (GGT) isolated from Helicobacter pylori induced apoptosis of AGS cells. Here, we investigate Ca(2+) effects on GGT-induced apoptosis. The GGT transiently and significantly increased intracellular Ca(2+) concentration ([Ca(2+)]i) in AGS cells in a dose-dependent...
Zheng Cao et al.
Biochimica et biophysica acta. Molecular cell research, 1867(8), 118718-118718 (2020-04-15)
Alternative splicing enables G protein-coupled receptor (GPCR) genes to greatly increase the number of structurally and functionally distinct receptor isoforms. However, the functional role and relevance of the individual GPCR splice variants in regulating physiological processes are still to be...
Stelina Drimousis et al.
The Journal of pharmacology and experimental therapeutics, 375(1), 28-39 (2020-08-09)
The tachykinin NK2 receptor plays a key role in gastrointestinal motor function. Enteric neurons release neurokinin A (NKA), which activates NK2 receptors on gastrointestinal smooth muscle, leading to contraction and increased motility. In patients with diarrhea-predominant irritable bowel syndrome, the...
Changcheng Sun et al.
Acta physiologica (Oxford, England), 231(4), e13626-e13626 (2021-02-14)
Oxytocin plays an important role in social recognition in rodents, which is mediated predominantly by the olfactory system. Although oxytocin modulates neural activity in the olfactory bulb, the underlying mechanism is largely unknown. Here, we studied how direct infusion of...
Z Velez et al.
Journal of fish biology, 83(3), 501-514 (2013-09-03)
This study tested whether differences in sensitivity between the upper and lower olfactory epithelia of Solea senegalensis are associated with different odorant receptors and transduction pathways, using the electro-olfactogram. Receptor mechanisms were assessed by cross-adaptation with amino acids (L-cysteine, L-phenylalanine...
Simona Dedoni et al.
Journal of neurochemistry, 146(5), 526-539 (2018-05-18)
The chemokine CCL5 prevents neuronal cell death mediated both by amyloid β, as well as the human immunodeficiency virus viral proteins gp120 and Tat. Because CCL5 binds to CCR5, CCR3 and/or CCR1 receptors, it remains unclear which of these receptors...
Anne-Marie Madec et al.
FASEB journal : official publication of the Federation of American Societies for Experimental Biology, 27(12), 5122-5130 (2013-09-07)
As shown in a large clinical prospective trial, inhibition of the renin-angiotensin system (RAS) can delay the onset of type 2 diabetes in high-risk individuals. We evaluated the beneficial effects of RAS inhibition on β-cell function under glucotoxic conditions. Human...
Eitaro Aihara et al.
The Journal of biological chemistry, 288(47), 33585-33597 (2013-10-15)
We report that a localized intracellular and extracellular Ca(2+) mobilization occurs at the site of microscopic epithelial damage in vivo and is required to mediate tissue repair. Intravital confocal/two-photon microscopy continuously imaged the surgically exposed stomach mucosa of anesthetized mice...
Wagner Shin Nishitani et al.
PloS one, 6(10), e26181-e26181 (2011-11-05)
A new device was designed to generate a localized mechanical vibration of flexible gels where human umbilical vein endothelial cells (HUVECs) were cultured to mechanically stimulate these cells at subcellular locations. A Fluorescence Resonance Energy Transfer (FRET)-based calcium biosensor (an...
Chang-Hee Kim et al.
The Journal of neuroscience : the official journal of the Society for Neuroscience, 30(10), 3762-3769 (2010-03-12)
The epithelial cells of Reissner's membrane (RM) are capable of transporting Na(+) out of endolymph via epithelial Na(+) channel (ENaC). However, much remains to be known as to mechanism of regulation of Na(+) absorption in RM. We investigated P2Y signaling...
Yutaka Ikeno et al.
Journal of neuroscience research, 87(1), 190-199 (2008-08-20)
Cultured cerebellar granule neurons (CGNs) undergo apoptosis when deprived of depolarizing stimulation and provide an in vitro model system with which to study the effects of neurotrophic substances. Our previous results showed that secretory phospholipases A(2) (sPLA(2)s) protect CGNs from...
Jae Sung Lee et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(37), 15079-15084 (2013-08-28)
Recruitment of release-competent vesicles during sustained synaptic activity is one of the major factors governing short-term plasticity. During bursts of synaptic activity, vesicles are recruited to a fast-releasing pool from a reluctant vesicle pool through an actin-dependent mechanism. We now...
Dong Suo et al.
The Journal of neuroscience : the official journal of the Society for Neuroscience, 35(9), 3893-3902 (2015-03-06)
Development of a functional peripheral nervous system requires axons to rapidly innervate and arborize into final target organs and then slow but not halt their growth to establish stable connections while keeping pace with organ growth. Here we examine the...
D I Yule et al.
The Journal of biological chemistry, 267(20), 13830-13835 (1992-07-15)
Stimulation of rat pancreatic acinar cells with low concentrations of phosphatidylinositol (PI)-linked secretagogues induces [Ca2+]i oscillations, without measurable changes in the formation of inositol 1,4,5-trisphosphate. Therefore, we tested U73122 a new phospholipase C inhibitor to determine if PI turnover is...
Ayasa Nakamura et al.
PloS one, 14(1), e0210193-e0210193 (2019-01-11)
The human natural killer-1 (HNK-1) carbohydrate epitope, composed of a unique sulfated trisaccharide (HSO3-3GlcAβ1-3Galβ1-4GlcNAc-R), is highly expressed during brain development and regulates higher brain function. However, it remains unclear which glycoprotein carries the HNK-1 epitope in the embryonic brain and...
Ki-Young Chang et al.
Nature communications, 5, 4057-4057 (2014-06-05)
Receptor tyrosine kinases (RTKs) are a family of cell-surface receptors that have a key role in regulating critical cellular processes. Here, to understand and precisely control RTK signalling, we report the development of a genetically encoded, photoactivatable Trk (tropomyosin-related kinase)...
Jinliang Zhuang et al.
Life sciences, 222, 29-35 (2019-03-04)
Recently, several plexins and semaphorins have been associated with osteoclastogenesis, a vital process for bone remodeling. Plexin-A2 is implicated in bone homeostasis, however, whether it plays a role in osteoclastogenesis and the underlying mechanism remain unknown. We show that plexin-A2...
Fanny Jaudon et al.
Cell death and differentiation, 27(5), 1505-1519 (2019-10-19)
Through their ability to modulate synaptic transmission, glial cells are key regulators of neuronal circuit formation and activity. Kidins220/ARMS (kinase-D interacting substrate of 220 kDa/ankyrin repeat-rich membrane spanning) is one of the key effectors of the neurotrophin pathways in neurons where...
Onyou Nam et al.
Microorganisms, 8(9) (2020-09-16)
Biomineralization by calcifying microalgae is a precisely controlled intracellular calcification process that produces delicate calcite scales (or coccoliths) in the coccolithophore Emiliania huxleyi (Haptophycea). Despite its importance in biogeochemical cycles and the marine environment globally, the underlying molecular mechanism of...

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