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Murali K Yanda et al.
Cellular signalling, 53, 140-150 (2018-10-09)
Autosomal dominant polycystic kidney disease (ADPKD) is caused by mutations in genes encoding the polycystin (PC) 1 and 2 proteins. The goal of this study was to determine the role of calcium in regulating cyst growth. Stromal interaction molecule 1...
Si Chen et al.
Toxicological sciences : an official journal of the Society of Toxicology, 146(1), 116-126 (2015-04-15)
The use of usnic acid as a weight loss agent is a safety concern due to reports of acute liver failure in humans. Previously we demonstrated that usnic acid induces apoptosis and cytotoxicity in hepatic HepG2 cells. We also demonstrated...
Christine M Loescher et al.
Journal of pharmaceutical and biomedical analysis, 98, 52-59 (2014-06-02)
Chromatography techniques such as HPTLC and HPLC are commonly used to produce a chemical fingerprint of a plant to allow identification and quantify the main constituents within the plant. The aims of this study were to compare HPTLC and HPLC...
Maren Stavermann et al.
Cell calcium, 58(2), 215-225 (2015-06-21)
Olfactory ensheathing cells (OECs) are a specialised type of glial cells, supporting axon growth and guidance during development and regeneration of the olfactory nerve and the nerve layer of the olfactory bulb. We measured calcium signalling in OECs in olfactory...
Ryo Yamamoto et al.
Neuropharmacology, 82, 49-58 (2014-03-26)
Regional differences are known in the serotonin-induced modulation of neuronal activity within the amygdala. This in vitro study in rats focuses on analyzing the ionic mechanism underlying serotonin-induced depolarization in the lateral amygdala. Serotonin depolarized membrane potential by 5 mV...
Elisabetta Groppelli et al.
Journal of virology, 89(1), 14-24 (2014-10-17)
Rapid HIV-1 spread between CD4 T lymphocytes occurs at retrovirus-induced immune cell contacts called virological synapses (VS). VS are associated with striking T cell polarization and localized virus budding at the site of contact that facilitates cell-cell spread. In addition...
Leiting Pan et al.
Advanced science (Weinheim, Baden-Wurttemberg, Germany), 6(18), 1900865-1900865 (2019-09-29)
The dynamic response of the cell to osmotic changes is critical to its physiology and is widely exploited for cell manipulation. Here, using three-dimensional stochastic optical reconstruction microscopy (3D-STORM), a super-resolution technique, the hypotonic stress-induced ultrastructural changes of the cytoskeleton...
T Maruyama et al.
Journal of biochemistry, 122(3), 498-505 (1997-11-05)
The effects of a novel membrane-penetrable modulator, 2APB (2-aminoethoxy diphenyl borate), on Ins(1,4,5)P3-induced Ca2+ release were examined. 2APB inhibited Ins(1,4,5)P3-induced Ca2+ release from rat cerebellar microsomal preparations without affecting [3H]Ins(1,4,5)P3 binding to its receptor. The IC50 value (concentration producing 50%...
David Holowka et al.
Biochimica et biophysica acta, 1841(8), 1210-1216 (2014-04-29)
Polyunsaturated fatty acids (PUFAs) have been found to be effective inhibitors of cell signaling in numerous contexts, and we find that acute addition of micromolar PUFAs such as linoleic acid effectively inhibit of Ca(2+) responses in mast cells stimulated by...
Li-Qin Chen et al.
Biomedical chromatography : BMC, 29(1), 103-109 (2014-06-12)
For the first time, electrospun composite nanofibers comprising polymeric crown ether with polystyrene (PCE-PS) have been used for the selective extraction of catecholamines - dopamine (DA), norepinephrine (NE) and epinephrine (E) - prior to their analysis by high-performance liquid chromatography-electrochemical...
Patrick Münzer et al.
American journal of physiology. Cell physiology, 307(10), C920-C927 (2014-09-19)
Sphingosine 1-phosphate (S1P) is a powerful regulator of platelet formation. Enzymes generating S1P include sphingosine kinase 1. The present study thus explored the role of sphingosine kinase 1 in platelet formation and function. Activation-dependent platelet integrin αIIbβ3 activation and secretion...
Velasco-Bejarano, B.; et al.
Synlett, 921-921 (2007)
Elena Viganò et al.
Nature communications, 6, 8761-8761 (2015-10-29)
Monocytes promote the early host response to infection releasing key pro-inflammatory cytokines, such as IL-1β. The biologically inactive IL-1β precursor is processed to active form by inflammasomes, multi-protein complexes activating caspase-1. Human monocytes exhibit an unconventional one-step pathway of inflammasome...
Huma Saleem et al.
British journal of pharmacology, 171(13), 3298-3312 (2014-03-19)
Inositol 1,4,5-trisphosphate receptors (IP3 Rs) are intracellular Ca(2+) channels. Interactions of the commonly used antagonists of IP3Rs with IP3R subtypes are poorly understood. IP3-evoked Ca(2+) release from permeabilized DT40 cells stably expressing single subtypes of mammalian IP3R was measured using...
Jingsheng Xia et al.
The Journal of physiology, 592(16), 3443-3461 (2014-05-27)
Store-operated calcium channels (SOCs) are calcium-selective cation channels that mediate calcium entry in many different cell types. Store-operated calcium entry (SOCE) is involved in various cellular functions. Increasing evidence suggests that impairment of SOCE is responsible for numerous disorders. A...
Yuan Zhang et al.
Scientific reports, 5, 12563-12563 (2015-07-29)
Previous work has shown that gap junction intercellular communication (GJIC) enhances cisplatin (Pt) toxicity in testicular tumor cells but decreases it in non-tumor testicular cells. In this study, these different GJIC-propagated effects were demonstrated in tumor versus non-tumor cells from...
Serge Guerreiro et al.
Molecular pharmacology, 87(3), 525-532 (2015-01-02)
To determine whether orexinergic hypothalamic peptides can influence the survival of brainstem dopamine (DA) neurons, we used a model system of rat midbrain cultures in which DA neurons degenerate spontaneously and progressively as they mature. We established that orexin (OX)-B...
Samuel Shin et al.
Cellular signalling, 67, 109484-109484 (2019-11-27)
Oxidative stress and reactive oxygen species (ROS) generation can be influenced by G-protein coupled receptor (GPCR)-mediated regulation of intracellular Ca2+ ([Ca2+]i) signaling. ROS production are much higher in proximal tubular (PT) cells; in addition, the lack of antioxidants enhances the...
John R P Knight et al.
The Biochemical journal, 465(2), 227-238 (2014-10-30)
Cells respond to external stress conditions by controlling gene expression, a process which occurs rapidly via post-transcriptional regulation at the level of protein synthesis. Global control of translation is mediated by modification of translation factors to allow reprogramming of the...
Dakota B Ward et al.
International journal of molecular sciences, 20(17) (2019-08-24)
Contrast-induced acute kidney injury (CI-AKI) is the third most common cause of hospital associated kidney damage. Potential mechanisms of CI-AKI may involve diminished renal hemodynamics, inflammatory responses, and direct cytotoxicity. The hypothesis for this study is that diatrizoic acid (DA)...
Fen Hu et al.
PloS one, 9(9), e107217-e107217 (2014-09-26)
The local concentration of extracellular Ca(2+) ([Ca(2+)]o) in bone microenvironment is accumulated during bone remodeling. In the present study we investigated whether elevating [Ca(2+)]o induced store-operated calcium entry (SOCE) in primary rat calvarial osteoblasts and further examined the contribution of...
Soo Ah Jeong et al.
Oncotarget, 6(25), 21173-21192 (2015-06-09)
The synthetic triterpenoid 2-cyano-3, 12-dioxooleana-1, 9(11)-dien-C28-methyl ester (CDDO-Me) is considered a promising anti-tumorigenic compound. In this study, we show that treatment with CDDO-Me induces progressive endoplasmic reticulum (ER)-derived vacuolation in various breast cancer cells and ultimately kills these cells by...
Qiang Li et al.
Experimental physiology, 100(1), 95-107 (2015-01-06)
What is the central question of this study? Why do different doses of sphingosine-1-phosphate (S1P) induce distinct biological effects in endothelial cells? What is the main finding and its importance? S1P at physiological concentrations preserved endothelial barrier function by binding...
Chun-Yu Deng et al.
PloS one, 9(9), e107128-e107128 (2014-09-10)
5-Hydroxytryptamine (5-HT) is a powerful constrictor of coronary arteries and is considered to be involved in the pathophysiological mechanisms of coronary-artery spasm. However, the mechanism of enhancement of coronary-artery constriction to 5-HT during the development of coronary artery disease remains...
Tamara Muñoz-Caro et al.
Developmental and comparative immunology, 52(2), 245-254 (2015-06-01)
Cryptosporidium parvum causes a zoonotic infection with worldwide distribution. Besides humans, cryptosporidiosis affects a wide range of animals leading to significant economic losses due to severe enteritis in neonatal livestock. Neutrophil extracellular trap (NET) formation has been demonstrated as an...
Yunpeng Du et al.
FASEB journal : official publication of the Federation of American Societies for Experimental Biology, 29(5), 2194-2204 (2015-02-11)
Reactive oxygen species play an important role in the pathogenesis of diabetic retinopathy. We studied the role of adrenergic and serotonin receptors in the generation of superoxide by retina and 661W retinal cells in high glucose and of the α1-adrenergic...
Jinsheng Xu et al.
Experimental and therapeutic medicine, 9(3), 1028-1034 (2015-02-11)
Vascular calcification, a common complication in patients with chronic kidney disease, involves a variety of mechanisms associated with the regulation of calcification-associated factors. Previous clinical studies have indicated that magnesium is involved in the reduction of vascular calcification; however, the...
Ziying Han et al.
PLoS pathogens, 11(10), e1005220-e1005220 (2015-10-30)
Hemorrhagic fever viruses, including the filoviruses (Ebola and Marburg) and arenaviruses (Lassa and Junín viruses), are serious human pathogens for which there are currently no FDA approved therapeutics or vaccines. Importantly, transmission of these viruses, and specifically late steps of...
Amit Jairaman et al.
Journal of immunology (Baltimore, Md. : 1950), 195(5), 2122-2133 (2015-08-05)
The G-protein-coupled protease-activated receptor 2 (PAR2) plays an important role in the pathogenesis of various inflammatory and auto-immune disorders. In airway epithelial cells (AECs), stimulation of PAR2 by allergens and proteases triggers the release of a host of inflammatory mediators...
Tauseef M Asmat et al.
PloS one, 9(12), e114474-e114474 (2014-12-03)
The pili and outer membrane proteins of Neisseria meningitidis (meningococci) facilitate bacterial adhesion and invasion into host cells. In this context expression of meningococcal PilC1 protein has been reported to play a crucial role. Intracellular calcium mobilization has been implicated...
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