Search Results - "Xie, Huanli"
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Plasma membrane flipping of Syntaxin-2 regulates its inhibitory action on insulin granule exocytosis
Published in Nature communications (31-10-2022)“…Enhancing pancreatic β-cell secretion is a primary therapeutic target for type-2 diabetes (T2D). Syntaxin-2 (Stx2) has just been identified to be an inhibitory…”
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Pancreatitis-Induced Depletion of Syntaxin 2 Promotes Autophagy and Increases Basolateral Exocytosis
Published in Gastroenterology (New York, N.Y. 1943) (01-05-2018)“…Pancreatic acinar cells are polarized epithelial cells that store enzymes required for digestion as inactive zymogens, tightly packed at the cell apex…”
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Syntaxin-4 mediates exocytosis of pre-docked and newcomer insulin granules underlying biphasic glucose-stimulated insulin secretion in human pancreatic beta cells
Published in Diabetologia (01-06-2015)“…Aims/hypothesis Of the four exocytotic syntaxins (Syns), much is now known about the role of Syn-1A (pre-docked secretory granules [SGs]) and Syn-3 (newcomer…”
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Syntaxin-3 Binds and Regulates Both R- and L-Type Calcium Channels in Insulin-Secreting INS-1 832/13 Cells
Published in PloS one (05-02-2016)“…Syntaxin (Syn)-1A mediates exocytosis of predocked insulin-containing secretory granules (SGs) during first-phase glucose-stimulated insulin secretion (GSIS)…”
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RalA GTPase Tethers Insulin Granules to L‐ and R‐Type Calcium Channels Through Binding α2δ‐1 Subunit
Published in Traffic (Copenhagen, Denmark) (01-04-2013)“…RalA GTPase has been implicated in the regulated delivery of exocytotic vesicles to the plasma membrane (PM) in mammalian cells. We had reported that RalA…”
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Syntaxin-1A inhibition of P-1075, cromakalim, and diazoxide actions on mouse cardiac ATP-sensitive potassium channel
Published in Cardiovascular research (01-12-2008)“…Aims Syntaxin (Syn)-1A binds sulfonylurea receptor (SUR) nucleotide binding folds of cardiac myocyte (SUR2A) and islet β-cells (SUR1) to inhibit ATP-sensitive…”
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Syntaxin 1A Binds to the Cytoplasmic C Terminus of Kv2.1 to Regulate Channel Gating and Trafficking
Published in The Journal of biological chemistry (09-05-2003)“…Voltage-gated K+(Kv) 2.1 is the dominant Kv channel that controls membrane repolarization in rat islet औ-cells and downstream insulin exocytosis. We recently…”
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Syntaxin-1A Inhibits Cardiac KATP Channels by Its Actions on Nucleotide Binding Folds 1 and 2 of Sulfonylurea Receptor 2A
Published in The Journal of biological chemistry (05-11-2004)“…ATP-sensitive potassium (K ATP ) channels couple the metabolic status of the cell to its membrane potential to regulate a number of cell actions, including…”
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H3 Domain of Syntaxin 1A Inhibits KATP Channels by Its Actions on the Sulfonylurea Receptor 1 Nucleotide-Binding Folds-1 and -2
Published in The Journal of biological chemistry (17-12-2004)“…The ATP-sensitive potassium (KATP) channel in pancreatic islet beta cells consists of four pore-forming (Kir6.2) subunits and four regulatory sulfonylurea…”
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Modulation of Kv2.1 channel gating and TEA sensitivity by distinct domains of SNAP-25
Published in Biochemical journal (01-06-2006)“…Distinct domains within the SNARE (soluble N-ethylmaleimide-sensitive fusion protein attachment protein receptor) proteins, STX1A (syntaxin 1A) and SNAP-25…”
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The Actions of a Novel Potent Islet β-Cell–Specific ATP-Sensitive K+ Channel Opener Can Be Modulated by Syntaxin-1A Acting on Sulfonylurea Receptor 1
Published in Diabetes (New York, N.Y.) (01-08-2007)“…The Actions of a Novel Potent Islet β-Cell–Specific ATP-Sensitive K + Channel Opener Can Be Modulated by Syntaxin-1A Acting on Sulfonylurea Receptor 1 Betty Ng…”
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Syntaxin-1A Actions on Sulfonylurea Receptor 2A Can Block Acidic pH-induced Cardiac KATP Channel Activation
Published in The Journal of biological chemistry (14-07-2006)“…During cardiac ischemia, ATP stores are depleted, and cardiomyocyte intracellular pH lowers to <7.0. The acidic pH acts on the Kir6.2 subunit of KATP channels…”
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Synaptotagmin-7 Functions to Replenish Insulin Granules for Exocytosis in Human Islet β-Cells
Published in Diabetes (New York, N.Y.) (01-07-2016)“…Synaptotagmin (Syt)-7, a major component of the exocytotic machinery in neurons, is also the major Syt in rodent pancreatic β-cells shown to mediate…”
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Pancreas-specific SNAP23 depletion prevents pancreatitis by attenuating pathological basolateral exocytosis and formation of trypsin-activating autolysosomes
Published in Autophagy (03-10-2021)“…Intrapancreatic trypsin activation by dysregulated macroautophagy/autophagy and pathological exocytosis of zymogen granules (ZGs), along with activation of…”
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Syntaxin 2 Acts as Inhibitory SNARE for Insulin Granule Exocytosis
Published in Diabetes (New York, N.Y.) (01-04-2017)“…Of the four syntaxins specialized for exocytosis, syntaxin (Syn)-2 is the least understood. In this study, we used Syn-2/epimorphin knockout mice to examine…”
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Synaptotagmin-7 Functions to Replenish Insulin Granules for Exocytosis in Human Islet[Beta]-Cells
Published in Diabetes (New York, N.Y.) (01-07-2016)“…Synaptotagmin (Syt)-7, a major component of the exocytotic machinery in neurons, is also the major Syt in rodent pancreatic β-cells shown to mediate…”
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Depletion of the membrane-fusion regulator Munc18c attenuates caerulein hyperstimulation–induced pancreatitis
Published in The Journal of biological chemistry (16-02-2018)“…Epithelial pancreatic acinar cells perform crucial functions in food digestion, and acinar cell homeostasis required for secretion of digestive enzymes relies…”
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Kv2.1 clusters on β-cell plasma membrane act as reservoirs that replenish pools of newcomer insulin granule through their interaction with syntaxin-3
Published in The Journal of biological chemistry (04-05-2018)“…The voltage-dependent K+ (Kv) channel Kv2.1 is a major delayed rectifier in many secretory cells, including pancreatic β cells. In addition, Kv2.1 has a direct…”
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Phosphatidylinositol 4,5-Biphosphate (PIP2) Modulates Interaction of Syntaxin-1A with Sulfonylurea Receptor 1 to Regulate Pancreatic β-Cell ATP-sensitive Potassium Channels
Published in The Journal of biological chemistry (28-02-2014)“…In β-cells, syntaxin (Syn)-1A interacts with SUR1 to inhibit ATP-sensitive potassium channels (KATP channels). PIP2 binds the Kir6.2 subunit to open KATP…”
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Syntaxin-1A inhibits K ATP channels by interacting with specific conserved motifs within sulfonylurea receptor 2A
Published in Journal of molecular and cellular cardiology (01-11-2011)“…We previously demonstrated that syntaxin (Syn)-1A is present in the sarcolemma of rat cardiomyocytes and binds sulfonylurea receptor (SUR) 2A nucleotide…”
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