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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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 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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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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Chemists influence stem-cell development with geometry (w/ Video)
University of Chicago scientists have successfully used geometrically patterned surfaces to influence the development of stem cells. The new approach is a departure from that of many stem-cell biologists, ...
Mar 17, 2010 |
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How nerve cells grow: Researchers decode a molecular process that controls the growth
Brain researcher Hiroshi Kawabe has discovered the workings of a process that had been completely overlooked until now, and that allows nerve cells in the brain to grow and form complex networks. The study ...
Medicine & Health / Neuroscience
Feb 19, 2010 |
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Fruit fly neuron can reprogram itself after injury
Studies with fruit flies have shown that the specialized nerve cells called neurons can rebuild themselves after injury.
Medicine & Health / Neuroscience
Dec 06, 2009 |
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Cross-country runabouts -- immune cells on the move
(PhysOrg.com) -- In order to effectively fight pathogens, even at remote areas of the human body, immune cells have to move quickly and in a flexible manner.
Nov 17, 2009 |
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Chromosomes dance and pair up on the nuclear membrane (w/ Video)
(PhysOrg.com) -- Meiosis - the pairing and recombination of chromosomes, followed by segregation of half to each egg or sperm cell - is a major crossroads in all organisms reproducing sexually. Yet, how the ...
Nov 13, 2009 |
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Researchers identify critical gene for brain development, mental retardation (w/ Video)
In laying down the neural circuitry of the developing brain, billions of neurons must first migrate to their correct destinations and then form complex synaptic connections with their new neighbors.
Sep 04, 2009 |
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Biomimetic-engineering design can replace spaghetti tangle of nanotubes in novel material
(PhysOrg.com) -- Nanoelectromechanical systems (NEMS) devices have the potential to revolutionize the world of sensors: motion, chemical, temperature, etc. But taking electromechanical devices from the micro ...
Nanotechnology / Nanomaterials
Jun 01, 2009 |
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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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