0000000000774775

AUTHOR

Gilbert Di Paolo

showing 2 related works from this author

Phosphatidylinositol phosphate kinase type I gamma regulates dynamics of large dense-core vesicle fusion.

2005

Phosphatidylinositol-4,5-bisphosphate was proposed to be an important regulator of large dense-core vesicle exocytosis from neuroendocrine tissues. Here, we have examined the kinetics of secretion in chromaffin cells from mice lacking phosphatidylinositol phosphate kinase type Iγ, the major neuronal phosphatidylinositol-4-phosphate 5-kinase. Absence of this enzyme caused a reduction of the readily releasable vesicle pool and its refilling rate, with a small increase in morphologically docked vesicles, indicating a defect in vesicle priming. Furthermore, amperometry revealed a delay in fusion pore expansion. These results provide direct genetic evidence for a key role of phosphatidylinositol…

Vesicle fusionChromaffin CellsBiologyIn Vitro TechniquesMembrane FusionExocytosisExocytosischemistry.chemical_compoundMiceAnimalsPhosphatidylinositolCells CulturedMultidisciplinaryVesicleSecretory VesiclesSNAP25Munc-18Kiss-and-run fusionBiological SciencesSecretory VesicleCell biologyKineticsMicroscopy ElectronPhosphotransferases (Alcohol Group Acceptor)chemistryCalciumProceedings of the National Academy of Sciences of the United States of America
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Autophagy

2012

Klionsky, Daniel J. et al.

autophagy assays[SDV]Life Sciences [q-bio]AutolysosomeAutophagosome maturationautophagosomeBioinformaticsstressChaperone-mediated autophagyModelsLC3MESH: Animalsguidelinesautolysosome autophagosome flux LC3 lysosome phagophore stress vacuoleSettore BIO/06 - Anatomia Comparata E CitologiaComputingMilieux_MISCELLANEOUSSettore BIO/17Autophagy databaseautolysosome3. Good healthddc:540lysosomeEnergy and redox metabolism Mitochondrial medicine [NCMLS 4]methods [Biological Assay]Biological AssaySettore BIO/17 - ISTOLOGIANeuroniMAP1LC3BHumanautophagygenetics [Autophagy]AutofagiaMESH: Autophagy*/genetics[SDV.BC]Life Sciences [q-bio]/Cellular BiologyAutofagia; Neuroni; istologiaBiologyModels BiologicalLC3; autolysosome; autophagosome; flux; lysosome; phagophore; stress; vacuoleddc:570AutophagyAnimalsHumansAutophagy-Related Protein 7[SDV.BC] Life Sciences [q-bio]/Cellular BiologyBiological Assay/methodsMolecular BiologyBiologyAutophagy; guidelines; autophagy assaysistologiaphagophoreMESH: HumansAnimals; Biological Assay; Humans; Models Biological; AutophagyvacuoleAnimal[ SDV.BC ] Life Sciences [q-bio]/Cellular BiologyMESH: Models BiologicalPathogenesis and modulation of inflammation Infection and autoimmunity [N4i 1]Cell BiologyBiologicalAutophagy/geneticsfluxAutophagosome membraneAutophagy Protein 5Human medicineMESH: Biological Assay/methods*Neuroscienceautolysosome; autophagosome; flux; LC3; lysosome; phagophore; stress; vacuoleAutophagy
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