News tagged with exocytosis
Exocytosis
Exocytosis (/ˌɛksoʊsaɪˈtoʊsɪs/; from Greek ἔξω "out" and English cyto- "cell" from Gk. κύτος "receptacle"), also known as 'The peni-cytosis', is the durable process by which a cell directs the contents of secretory vesicles out of the cell membrane. These membrane-bound vesicles contain soluble proteins to be secreted to the extracellular environment, as well as membrane proteins and lipids that are sent to become components of the cell membrane.
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Orchestrator of waste removal rescues cells that can't manage their trash
Just as we must take out the trash to keep our homes clean and safe, it is essential that our cells have mechanisms for dealing with wastes and worn-out proteins. When these processes are not working properly, unwanted debris ...
Sep 01, 2011 |
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Researchers show how cells open 'doors' to release neurotransmitters
Like opening a door to exit a room, cells in the body open up their outer membranes to release such chemicals as neurotransmitters and other hormones.
Oct 14, 2010 |
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Cells use import machinery to export their goods as well
Research suggests a new level of regulation for cellular export process by molecules previously assumed to be dedicated to import activities.
Jun 25, 2009 |
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Researchers solve membrane protein mystery
A University of Wisconsin-Madison research team has solved a 25-year mystery that may lead to better treatments for people with learning deficits and mental retardation.
Medicine & Health / Neuroscience
Jun 08, 2011 |
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Small details between 'in vivo' and 'in vitro' studies make for big differences
Small details between "in vivo" and "in vitro" studies make for big differences in understanding diabetes and other secretory dysfunctions
Dec 13, 2010 |
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Fungal footage fosters foresight into plant, animal disease (w/ Video)
Mold and mildew may be doomed. Researchers are closer to understanding how these and other fungi grow. "Fungi have a big impact on our dinner plate," said Dr. Brian Shaw, Texas AgriLife Research plant pathologist. "We tend ...
Dec 22, 2009 |
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Gene called flower missing link in vesicle uptake in neurons
As part of the intricate ballet of synaptic transmission from one neuron to the next, tiny vesicles - bubbles containing the chemical neurotransmitters that make information exchange possible -- travel to the tip of neurons ...
Sep 03, 2009 |
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Protein 'Tweek' rare but critical in synaptic process
(July 29, 2009) - Recycling is a critical component in the process of transmitting information from one neuron to the next, and a large protein called Tweek plays a critical role, said an international consortium of researchers ...
Medicine & Health / Neuroscience
Jul 29, 2009 |
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Cells use import machinery to export their goods as well
(PhysOrg.com) -- In the bustling economy of the cell, little bubbles called vesicles serve as container ships, ferrying cargo to and from the port — the cell membrane. Some of these vesicles, called post-Golgi vesicles, export ...
Jul 03, 2009 |
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How neuronal activity leads to Alzheimer's protein cleavage
Amyloid precursor protein (APP), whose cleavage product, amyloid-b (Ab), builds up into fibrous plaques in the brains of Alzheimer's disease patients, jumps from one specialized membrane microdomain to another to be cleaved, ...
Biology /
Oct 20, 2008 |
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Multi-tasking molecule holds key to allergic reactions
As the summer approaches most of us rejoice, reach for the sunscreen and head outdoors. But an ever-growing number of people reach for tissue instead as pollen leaves eyes watering, noses running and spirits dwindling. Hay ...
Aug 07, 2008 |
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New tool probes brain circuits
Researchers at the Picower Institute for Learning and Memory at MIT report in the Jan. 24 online edition of Science that they have created a way to see, for the first time, the effect of blocking and unbloc ...
Jan 24, 2008 |
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Breakthrough technology observes synapse in real time, supporting theory of vesicular recycling
For the first time, scientists at Weill Cornell Medical College in New York City have observed in real time a cellular mechanism that's crucial to how brain cells communicate.
Dec 14, 2007 |
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