Neuroscience

Control of secretory trafficking in neurons

(Medical Xpress)—Neuroscience typically proceeds by trimming back previous overly dogmatic statements. Such is the case with new findings that proteins are locally manufactured to order throughout an extended neuronal tree. ...

Immunology

Exosomal transmission of viral resistance in Hepatitis B

(Medical Xpress)—To move material in bulk, the standard shipping container used by cells, is the vesicle. These approximately 40-micron sized spheres are essentially recyclable grocery bags that can be loaded and adorned ...

Immunology

Rescue protein gives doomed cells a stay of 'execution'

A research team led by St. Jude Children's Research Hospital immunologists has discovered how a set of proteins delays the "executioner" machinery that kills damaged or infected cells in a process called necroptosis. The ...

Medical research

Cholesterol sets off chaotic blood vessel growth

A study at the University of California, San Diego School of Medicine identified a protein that is responsible for regulating blood vessel growth by mediating the efficient removal of cholesterol from the cells. Unregulated ...

Medical research

Study uses Botox to find new wrinkle in brain communication

National Institutes of Health researchers used the popular anti-wrinkle agent Botox to discover a new and important role for a group of molecules that nerve cells use to quickly send messages. This novel role for the molecules, ...

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Cell membrane

The cell membrane (also called the plasma membrane or plasmalemma) is the biological membrane separating the interior of a cell from the outside environment.

It is a semipermeable lipid bilayer found in all cells. It contains a wide variety of biological molecules, primarily proteins and lipids, which are involved in a vast array of cellular processes such as cell adhesion, ion channel conductance and cell signaling. The plasma membrane also serves as the attachment point for both the intracellular cytoskeleton and, if present, the extracellular cell wall.

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