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Latest Cytoskeleton Stories

2011-09-15 05:13:46

(Ivanhoe Newswire) -- A new tool allows scientists to see the immune system like never before. The device, a stimulated emission depletion (STED) microscope, provides sharp images at extremely small scales. It shows how granules from natural killer cells pass through openings in dynamic cell structures to destroy tumor cells and cells infected by viruses. "This new technology enables researchers to see individual elements previously below the physical limits of imaging using light,"...

2011-09-08 20:54:30

Researchers at the California Institute of Technology (Caltech) have obtained the first high-resolution, three-dimensional images of a cell with a nucleus undergoing cell division. The observations, made using a powerful imaging technique in combination with a new method for slicing cell samples, indicate that one of the characteristic steps of mitosis is significantly different in some cells. During mitosis, two sets of chromosomes get paired up at the center of the cell's nucleus. Then...

2011-09-02 12:14:30

Complex system transports essential cargoes such as proteins and membrane vesicles Every cell in the human body contains a complex system to transport essential cargoes such as proteins and membrane vesicles, from point A to point B. These tiny molecular motor proteins move at blistering speeds on miniature railways carrying components of the cell to their proper destinations. But just how cells construct these transport railways to fit precisely inside of confined spaces of the individual...

2011-08-29 12:07:09

Most cells rely on structural tethers to position chromosomes in preparation for cell division. Not so oocytes. Instead, a powerful intracellular stream pushes chromosomes far-off the center in preparation for the highly asymmetric cell division that completes oocyte maturation upon fertilization of the egg, report researchers at the Stowers Institute for Medical Research. Their findings illustrate how oocytes repurposed a dynamic cellular mechanism capable of generating considerable...

2011-07-26 06:16:00

LONDON, July 26, 2011 /PRNewswire/ -- Great Ormond Street Hospital has announced that a team led by scientists at its research partner, UCL Institute of Child Health (ICH), funded by the Medical Research Council (MRC) and AVI BioPharma, have made an important breakthrough in the development of a treatment for Duchenne Muscular Dystrophy (DMD). Together with the MDEX Consortium, chaired by the ICH's Professor Francesco Muntoni, the group showed that a gene based drug...

2011-06-14 00:00:00

TOKYO, June 14, 2011 /PRNewswire/ -- Mitsubishi Chemical Medience Corporation announced today that the U.S. Food and Drug Administration (FDA) has granted 510(k) premarketing notification clearance to the PATHFAST® cTnI-II (cardiac Troponin I) diagnostic test, clearing the way for its sale in the United States. The test is designed to be used with the PATHFAST analysis system, a unique, self-contained, bench-top chemi-luminescence immunoanalyzer that rapidly measures...

2011-06-06 12:58:43

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 forcing the cells to combine. Such muscle cell fusion, the researchers say, is not only important for understanding normal muscle growth, but also muscle regeneration after injury or disease. The work, they believe, could further development of therapies for muscular...

2011-06-03 13:23:15

Max Planck scientists decipher important mechanisms of bacterial cell wall synthesis Almost all bacteria owe their structure to an outer cell wall that interacts closely with the supporting MreB protein inside the cell. As scientists at the Max Planck Institute for Biochemistry and at the French INRA now show, MreB molecules assemble into larger units, but not - as previously believed "“ into continuous helical structures. The circular movement of these units along the inside of the...

2011-05-31 15:34:58

Researchers from the Walter and Eliza Hall Institute have overturned conventional wisdom on how cell movement across all species is controlled, solving the structure of a protein that cuts power to the cell 'motor'. The protein could be a potential drug target for future malaria and anti-cancer treatments. By studying the structure of actin-depolymerising factor 1 (ADF1), a key protein involved in controlling the movement of malaria parasites, the researchers have demonstrated that...


Word of the Day
negawatt
  • A unit of saved energy.
Coined by Amory Lovins, chairman of the Rocky Mountain Institute as a contraction of negative watt on the model of similar compounds like megawatt.