Dynamics of vesicle formation controlled by cellular messenger signaling

present research results could be summarized following 6 subjects as；1) Dynamics of vesicle formation controlled by the lumenal Ca D12+ D1 in mammalian endoplasmicreticulum;We monitored the changes in membrane capacitance (Cm) using a intact lumen ER preparation by varyingthe lumenal Ca - D12+ D1 concentration ([Ca - D12+ D1]). A rise and fall in the [Ca - D12+ D1]increased and decreased the Cm of the whole-ER membrane, respectively；2) A regulatory role of endoplasmic reticulum (ER) ion channels in Ca D12+ D1 release mechanismspancreatic acinar cells；The paper provides a temporal list of ion channels present in The ER. The ER specific channels mayinfluence Ca - D12+ D1 - signaling；3) A putative role of endoplasmic reticulum maxi-K channels in Ca D12+ D1 transport mechanismsbetween cellular compartments in polarized cells. The paper provide evidence that ER maxik channelsplay a role for a homogenous distribution of Ca D12+ D1 in the storage pools；4) Larg…e conductance anion channels in ER membranes of muse liver cells；The predominant channel was a large conductance anion selective channel that exhibited voltagedependence and allowed large organic anions to pass；5) G protein modulation of voltage-sensitive ACh-binding in muscarinic Ca - D12+ - d -signaling ofmouse pancreatic acinar cells；Monitoring the muscarinic Ca D12+ D1-responses，我们examined the mechanism of G protein-receptor interaction in terms of the membrane potential. theresults indicate that ACh binding is sensitive to the membrane potential and that the G proteinassociation-dissociation cycle modulates the voltage-sensitivity；6) Cyclic ADP-ribose elimination from muscarinic Ca - D12+ D1-signaling in pancreatic acinar cellsstudied using CD38 knockout mice. The majority of The cellular cyclic ADP-ribose (cADPR) has beenascribed to the activity of ADP-ribosyl cyclase of CD38. By estimating ACh-induced Caresponses in pancreatic acinar cells from CD38 knockout mice我们distinguished and characterized individual Ca我们D12+数据D1 pools responsive to cADPR， ryanodine，and IP - D23 - D2 by monitoring ACh-evoked increases in the cytosolic Ca - D12+ D1 concentration. Less

The present research results could be summarized following 6 subjects as ; 1) Dynamics of vesicle formation controlled by the lumenal CaィイD12+ィエD1 in mammalian endoplasmic reticulum ; We monitored the changes in membrane capacitance (Cm) using a intact lumen ER preparation by varying the lumenal CaィイD12+ィエD1 concentration ([CaィイD12+ィエD1]). A rise and fall in the [CaィイD12+ィエD1] increased and decreased the Cm of the whole-ER membrane, respectively ; 2) A regulatory role of endoplasmic reticulum (ER) ion channels in CaィイD12+ィエD1 release mechanisms of pancreatic acinar cells ; The paper provides a temporal list of ion channels present in the ER. The ER specific channels may influence CaィイD12+ィエD1 signaling ; 3) A putative role of endoplasmic reticulum maxi-K channels in CaィイD12+ィエD1 transport mechanisms between cellular compartments in polarized cells. The paper provide evidence that ER maxi-K channels play a role for a homogenous distribution of CaィイD12+ィエD1 in the storage pools ; 4) Larg … More e conductance anion channels in ER membranes of muse liver cells ; The predominant channel was a large conductance anion selective channel that exhibited voltage dependence and allowed large organic anions to pass ; 5) G protein modulation of voltage-sensitive ACh-binding in muscarinic CaィイD12+ィエD1-signaling of mouse pancreatic acinar cells ; Monitoring the muscarinic CaィイD12+ィエD1-responses, we examined the mechanism of G protein-receptor interaction in terms of the membrane potential. The results indicate that ACh binding is sensitive to the membrane potential and that the G protein association-dissociation cycle modulates the voltage-sensitivity ; 6) Cyclic ADP-ribose elimination from muscarinic CaィイD12+ィエD1-signaling in pancreatic acinar cells studied using CD38 knockout mice. The majority of the cellular cyclic ADP-ribose (cADPR) has been ascribed to the activity of ADP-ribosyl cyclase of CD38. By estimating ACh-induced CaィイD12+ィエD1 responses in pancreatic acinar cells from CD38 knockout mice, we distinguished and characterized individual CaィイD12+ィエD1 pools responsive to cADPR, ryanodine, and IPィイD23ィエD2 by monitoring ACh-evoked increases in the cytosolic CaィイD12+ィエD1 concentration. Less