News tagged with cytoskeleton
Mini cargo transporters on a rat run: New insight on molecular motor movement
Kinesins assume a vital function in our cells: The tiny cargo transporters move important substances along lengthy protein fibers and ensure an effective transportation infrastructure. Biophysicists of the ...
Apr 26, 2012 |
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Cells on the move
Cells on the move reach forward with lamellipodia and filopodia, cytoplasmic sheets and rods supported by branched networks or tight bundles of actin filaments. Cells without functional lamellipodia are still ...
Apr 09, 2012 |
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Rearranging the cell's skeleton: Small molecules at the cell's membrane enable cell movement
Cell biologists at Johns Hopkins have identified key steps in how certain molecules alter a cell's skeletal shape and drive the cell's movement.
Feb 02, 2012 |
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How a molecular traffic jam impacts cell division
Interdisciplinary research between biology and physics aims to understand the cell and how it organizes internally. The mechanisms inside the cell are very complicated. LMU biophysicist Professor Erwin Frey, who is also a ...
Nov 07, 2011 |
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Single-molecule imaging reveals how cells prepare to interact with the world
Researchers at Harvard Medical School have discovered that structural elements in the cell play a crucial role in organizing the motion of cell-surface receptors, proteins that enable cells to receive signals from other parts ...
Aug 18, 2011 |
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Scientists discover new direction in Alzheimer's research
In what they are calling a new direction in the study of Alzheimer's disease, UC Santa Barbara scientists have made an important finding about what happens to brain cells that are destroyed in Alzheimer's ...
Jun 06, 2011 |
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How muscle develops: A dance of cellular skeletons
Revealing another part of the story of muscle development, Johns Hopkins researchers have shown how the cytoskeleton from one muscle cell builds finger-like projections that invade into another muscle cell's territory, eventually ...
Jun 04, 2011 |
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Researchers have found how brain cells control their movement to form the cerebral cortex
A study led by Academy Research Fellow Eleanor Coffey identifies new players that put the brakes on. They show in mice that lack the star player "JNK1", that newborn neurons spend less time in the multipolar stage, which ...
Medicine & Health / Neuroscience
Feb 25, 2011 |
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Researchers ID molecular link key for cell growth
(PhysOrg.com) -- When a cell is preparing to grow or replicate, it starts the way a monarch planning to expand his territory might: by identifying and marshaling the necessary resources, loading them onto ...
Jan 24, 2011 |
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Early investigations promising for detecting metastatic breast cancer cells
Research by engineers and cancer biologists at Virginia Tech indicate that using specific silicon microdevices might provide a new way to screen breast cancer cells' ability to metastasize.
Jan 10, 2011 |
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A turning point for young neurons
During neural development, newborn neurons extend axons toward distant targets then form connections with other cells. This process depends on the growth cone, a dynamic structure at the growing axon tip of ...
Medicine & Health / Neuroscience
Aug 03, 2010 |
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Team finds new building block in cells
(PhysOrg.com) -- Zemer Gitai, an assistant professor of molecular biology at Princeton University, members of his laboratory, and scientists from the California Institute of Technology have published results in Nature Ce ...
Aug 02, 2010 |
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Tumor suppressor APC could stop cancer through its effect on actin cytoskeleton
The APC protein serves as the colon's guardian, keeping tumors at bay. Now researchers reveal a new function for the protein: helping to renovate the cytoskeleton by triggering actin assembly. The result suggests ...
Jun 21, 2010 |
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Newly discovered kinase regulates cytoskeleton, and perhaps holds key to how cancer cells spread
Scientists at the University of California, San Diego have identified a previously unknown kinase that regulates cell proliferation, shape and migration, and may play a major role in the progression or metastasis of cancer ...
May 31, 2010 |
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Gene links neurodegeneration and cancer
(PhysOrg.com) -- In work that could lead to new insights into how neurons protect against neurodegeneration, researchers at MIT’s Picower Institute for Learning and Memory report that a gene family known for ...
Medicine & Health / Neuroscience
Apr 14, 2010 |
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Cytoskeleton
The cytoskeleton (also CSK) is a cellular "scaffolding" or "skeleton" contained within a cell's cytoplasm and is made out of protein. The cytoskeleton is present in all cells; it was once thought to be unique to eukaryotes, but recent research has identified the prokaryotic cytoskeleton. It has structures such as flagella, cilia and lamellipodia and plays important roles in both intracellular transport (the movement of vesicles and organelles, for example) and cellular division. In 1903 Nikolai K Koltsov proposed that the shape of cells was determined by a network of tubules which he termed the cytoskeleton. The concept of a protein mosaic that dynamically coordinated cytoplasmic biochemistry was proposed by Rudolph Peters in 1929 while the term (cytosquelette, in French) was first introduced by French embryologist Paul Wintrebert in 1931.
For more information about Cytoskeleton, read the full article at
Wikipedia.
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