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Fusion Pores, SNAREs, and Exocytosis

The Neuroscientist, 2012
Exocytosis is a multistage process involving a merger between the vesicle and the plasma membranes, leading to the formation of a fusion pore, a channel, through which secretions are released from the vesicle to the cell exterior. A stimulus may influence the pore by either dilating it completely (full-fusion exocytosis) or mediating a reversible ...
Nina, Vardjan   +2 more
openaire   +2 more sources

Fusion pore regulation of transmitter release

Brain Research Reviews, 2005
During the last decade a wealth of new information about the properties of the exocytotic fusion pore is changing our current view of exocytosis. The exocytotic fusion pore, a necessary stage before the full merging of the vesicle membrane with the plasma membrane, is becoming a key cellular structure that might critically control the amount of ...
Carlos, Fernández-Peruchena   +3 more
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Fusion pore regulation in peptidergic vesicles

Cell Calcium, 2012
Regulated exocytosis, which involves fusion of secretory vesicles with the plasma membrane, is an important mode of communication between cells. In this process, signalling molecules that are stored in secretory vesicles are released into the extracellular space.
Jernej, Jorgačevski   +3 more
openaire   +2 more sources

Fusion Pore in Live Cells

Physiology, 2002
Earlier electrophysiological measurements on live secretory cells suggested the presence of fusion pores at the plasma membrane, where secretory vesicles fuse to release vesicular contents. Recent studies using atomic force microscopy demonstrate for the first time the presence of the fusion pore and reveal its morphology and dynamics at near ...
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Fusion pore stability of peptidergic vesicles

Molecular Membrane Biology, 2010
It is believed that in regulated exocytosis the vesicle membrane fuses with the plasma membrane in response to a physiological stimulus. However, in the absence of stimulation, repetitive transient fusion events are also observed, reflecting a stable state. The mechanisms by which the initial fusion pore attains stability are poorly understood.
Jernej, Jorgacevski   +8 more
openaire   +2 more sources

The fusion pore and mechanisms of biological membrane fusion

Current Opinion in Cell Biology, 1996
Membrane fusion occurs as part of processes as different as synaptic neurotransmitter transmission and infection with influenza virus. Recent evidence paints a picture in which the organization of proteins into a macromolecular scaffold brings the two fusing membranes together and induces hemifusion, that is, the fusion of the apposing leaflets of the ...
J R, Monck, J M, Fernandez
openaire   +2 more sources

Pinning Down Fusion Pores

Science's STKE, 2004
The fusion pore for exocytosis, which can be defined biophysically, can be modulated by synaptotagmin, a protein found on synaptic vesicles. However, the nature of the fusion pore itself remains unclear. It is not even known whether the fusion pore is composed of lipid or protein. Han et al .
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Exocytotic fusion pores exhibit semi-stable states

The Journal of Membrane Biology, 1993
Rapid-freezing/freeze-fracture electron microscopy and whole-cell capacitance techniques were used to study degranulation in peritoneal mast cells of the rat and the mutant beige mouse. These studies allowed us to create a time-resolved picture for fusion pore formation.
M J, Curran   +4 more
openaire   +2 more sources

The exocytotic fusion pore and neurotransmitter release

Neuron, 1994
Membrane fusion is ubiquitous in biological systems, occurring in the simplest of unicellular eukaryotes as well as higher eukaryotes. As soon as the first primitive eukaryotic cell utilized a lipid bilayer as an outer membrane, membrane fusion (and fission) became necessary for the traffic of material from the outside to the inside, the inside to the ...
J R, Monck, J M, Fernandez
openaire   +2 more sources

Mesoscopic-scale simulation of pore evolution during laser powder bed fusion process

Computational materials science, 2020
Laser powder bed fusion (LPBF) is an advanced manufacturing technology that uses data-driven, layer-by-layer accumulation of materials to form metal components and has been widely applied in aerospace and other fields.
Liu Cao
semanticscholar   +1 more source

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