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" within Papeles
Oleg Kovtun et al.
PloS one, 14(11), e0225339-e0225339 (2019-11-22)
The presynaptic dopamine transporter mediates rapid reuptake of synaptic dopamine. Although cell surface DAT trafficking recently emerged as an important component of DAT regulation, it has not been systematically investigated. Here, we apply our single quantum dot (Qdot) tracking approach...
Lin Wang et al.
Nature communications, 10(1), 746-746 (2019-02-16)
Excessive or uncontrolled release of proinflammatory cytokines caused by severe viral infections often results in host tissue injury or even death. Phospholipase C (PLC)s degrade phosphatidylinositol-4, 5-bisphosphate (PI(4,5)P2) lipids and regulate multiple cellular events. Here, we report that PLCβ2 inhibits...
Yan Wang et al.
Scientific reports, 7(1), 16226-16226 (2017-11-28)
As documented in our previous study, notoginsenoside R1 (NGR1) can inhibit neuron apoptosis and the expression of endoplasmic reticulum (ER) stress-associated pro-apoptotic proteins in hypoxic-ischemic encephalopathy. Recent evidence indicates that the Phospholipase C (PLC)/inositol 1,4,5-trisphosphate receptor (IP3R) is important for...
Meng Deng et al.
The Journal of experimental medicine, 216(12), 2838-2853 (2019-09-29)
The role of lipids in inflammasome activation remains underappreciated. The phospholipid, platelet-activating factor (PAF), exerts multiple physiological functions by binding to a G protein-coupled seven-transmembrane receptor (PAFR). PAF is associated with a number of inflammatory disorders, yet the molecular mechanism...
Isabel Silva et al.
British journal of pharmacology, 177(7), 1589-1608 (2019-11-14)
The mechanism by which β3 receptor agonists (e.g. mirabegron) control bladder overactivity may involve adenosine release from human and rat detrusor smooth muscle. Retrograde activation of adenosine A1 receptors reduces ACh release from cholinergic bladder nerves. β3 -Adrenoceptors usually couple...
Yue Cong et al.
Scientific reports, 6, 38757-38757 (2016-12-10)
The thromboxane (Tx) A2 pathway is a major contributor to the amplification of initial platelet activation and is therefore a key drug target. To identify potent small-molecule inhibitors of the thromboxane prostaglandin (TP) receptor, we screened a small steroidal saponin...
Alexander B Forster et al.
Molecular pain, 5, 17-17 (2009-04-18)
Morphine and its derivatives are key drugs in pain control. Despite its well-known analgesic properties morphine at high concentrations may be proalgesic. Particularly, short-lasting painful sensations have been reported upon dermal application of morphine. To study a possible involvement of...
Lida Wu et al.
Biochemical and biophysical research communications, 534, 1020-1025 (2020-11-03)
Significant cellular morphology changes in renal tubules were observed in diabetes patients and animal models. However, the interaction between insulin and tubular epithelial cells microvillar structure remains obscure. To understand microvillar dynamics, we used Scanning Ion Conductance Microscope to visualize...
Kouichi Tachibana et al.
Biochemical and biophysical research communications, 523(1), 177-182 (2019-12-18)
Although circulating leukocytes are non-adherent cells, they also undergo adhesion in response to external stimuli. To elucidate this switch mechanism, we investigated PMA-induced cell adhesion in myelomonocytic KG-1 cells. PMA induced microvillius collapse, decrease of cell surface rigidity and exclusion of...
Akiyuki Nishimura et al.
Genes to cells : devoted to molecular & cellular mechanisms, 11(5), 487-498 (2006-04-25)
RIC-8 was originally found by genetic studies on C. elegans mutants that were resistant to inhibitors of acetylcholinesterase and reported to act in vitro as a guanine nucleotide exchange factor for G protein alpha subunits. However, the physiological role of...
Kathryn P Trogden et al.
FASEB journal : official publication of the Federation of American Societies for Experimental Biology, 32(5), 2841-2854 (2018-02-07)
Vimentin is a cytoskeletal intermediate filament protein that is expressed in mesenchymal cells and cancer cells during the epithelial-mesenchymal transition. The goal of this study was to identify vimentin-targeting small molecules by using the Tocriscreen library of 1120 biochemically active...
Shih-Wei Wang et al.
Journal of cellular physiology, 236(5), 3979-3990 (2020-12-01)
Prostate cancer has high metastatic potential. Men with higher urinary levels of the sleep hormone melatonin are much less likely to develop advanced prostate cancer compared with men with lower levels of melatonin. Melatonin has shown anticancer activity in experimental...
Jieny Gröper et al.
Cells, 9(4) (2020-04-29)
Ligand-based selectivity in signal transduction (biased signaling) is an emerging field of G protein-coupled receptor (GPCR) research and might allow the development of drugs with targeted activation profiles. Human formyl peptide receptor 1 (FPR1) is a GPCR that detects potentially...
Shu-Xin Zhang et al.
Cell research, 27(2), 253-273 (2017-01-21)
Neurite initiation is critical for neuronal morphogenesis and early neural circuit development. Recent studies showed that local actin aggregation underneath the cell membrane determined the site of neurite initiation. An immediately arising question is what signaling mechanism initiated actin aggregation....
Xiaoge Gao et al.
Oncotarget, 5(8), 2077-2084 (2014-05-09)
The presence and level of circulating galectin-3 (Gal-3), a member of the galectin family, is associated with diverse diseases ranging from heart failure, immune disorders to cancer metastasis and serves as a biomarker of diagnosis and treatment response. However, the...
Ondrej Cerny et al.
Journal of immunology (Baltimore, Md. : 1950), 198(3), 1285-1296 (2017-01-01)
The adenylate cyclase toxin-hemolysin (CyaA) plays a key role in immune evasion and virulence of the whooping cough agent Bordetella pertussis. CyaA penetrates the complement receptor 3-expressing phagocytes and ablates their bactericidal capacities by catalyzing unregulated conversion of cytosolic ATP...
José Miguel Cabral et al.
American journal of physiology. Gastrointestinal and liver physiology, 309(8), G703-G715 (2015-08-22)
Inappropriate activation of pattern recognition receptors has been described as a potential trigger in the development of inflammatory bowel disease (IBD). In this study, we evaluated the activity and expression of Na(+)/H(+) exchanger (NHE) subtypes in T84 intestinal epithelial cells...
Liqun Chen et al.
Cell research, 27(6), 748-763 (2017-04-05)
Lysosomes are centers for nutrient sensing and recycling that allow mammals to adapt to starvation. Regulation of lysosome dynamics by internal nutrient signaling is well described, but the mechanisms by which external cues modulate lysosomal function are unclear. Here, we...
Chaoyi Zhang et al.
Frontiers in endocrinology, 11, 629077-629077 (2021-02-23)
Glucagon (GCG) plays a stimulatory role in pituitary hormone regulation, although previous studies have not defined the molecular mechanism whereby GCG affects pituitary hormone secretion. To this end, we identified two distinct proglucagons, Gcga and Gcgb, as well as GCG...
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