News tagged with molecular and cell biology
Jarid2 may break the Polycomb silence
Historically, fly and human Polycomb proteins were considered textbook exemplars of transcriptional repressors, or proteins that silence the process by which DNA gives rise to new proteins. Now, work by a ...
Apr 30, 2012 |
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Scientists open new window into how cancers override cellular growth controls
Rapidly dividing cancer cells are skilled at patching up damage that would stop normal cells in their tracks, including wear and tear of telomeres, the protective caps at the end of each chromosome.
Mar 21, 2012 |
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Discovery of extremely long-lived proteins may provide insight into cell aging
One of the big mysteries in biology is why cells age. Now scientists at the Salk Institute for Biological Studies report that they have discovered a weakness in a component of brain cells that may explain ...
Feb 03, 2012 |
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Star Wars-inspired bacterium provides glimpse into life
(PhysOrg.com) -- A bacterium whose name was inspired by the Star Wars films has provided new clues into the evolution of our own cells and how they came to possess the vital energy-producing units called mitochondria.
Dec 09, 2011 |
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2 top biological imaging centers offer powerful free online tool to researchers and public
The collaboration of two leading cell image resource centers now provides a more extensive and advanced facility for archiving, sharing, and analyzing microscope images in great detail. The American Society for Cell Biology ...
Dec 02, 2011 |
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Cobblestones fool innate immunity
Coating the surface of an implant such as a new hip or pacemaker with nanosized metallic particles reduces the risk of rejection, and researchers at the University of Gothenburg, Sweden, can now explain why: they fool the ...
Nanotechnology / Bio & Medicine
Nov 29, 2011 |
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Researchers uncover new function for cell master regulator
(PhysOrg.com) -- TORC1 is a master regulator in cells, playing a key role in such diverse processes as gene expression and protein synthesis. While previous studies have described the role that TORC1 plays ...
Nov 29, 2011 |
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Study identifies a key molecular switch for telomere extension by telomerase
Researchers at the University of Illinois at Chicago College of Medicine describe for the first time a key target of DNA damage checkpoint enzymes that must be chemically modified to enable stable maintenance of chromosome ...
Nov 23, 2011 |
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Intestinal stem cells respond to food by supersizing the gut
A new study from University of California, Berkeley, researchers demonstrates that adult stem cells can reshape our organs in response to changes in the body and the environment, a finding that could have ...
Oct 27, 2011 |
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A coating that prevents barnacles forming colonies
It is not necessary for an effective anti-fouling coating to release toxins into the environment. Scientists at the University of Gothenburg have shown that it is instead possible to mix into the coating molecules ...
Oct 04, 2011 |
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Are cancers newly evolved species?
(PhysOrg.com) -- Cancer patients may view their tumors as parasites taking over their bodies, but this is more than a metaphor for Peter Duesberg, a molecular and cell biology professor at the University of ...
Jul 26, 2011 |
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Singapore scientists discover how to control fate of stem cells
Scientists from the Genome Institute of Singapore (GIS), an institute of the Agency for Science, Technology and Research (A*STAR), in collaboration with the Cancer Science Institute of Singapore (CSI), have discovered how ...
Jun 24, 2011 |
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Discovery alters conventional understanding of sight
A discovery by a team of researchers led by a Syracuse University physicist sheds new light on how the vision process is initiated. For almost 50 years, scientists have believed that light signals could not be initiated unless ...
Jun 23, 2011 |
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How cells' sensing hairs are made
(PhysOrg.com) -- Body cells detect signals that control their behavior through tiny hairs on the cell surface called cilia. Serious diseases and disorders can result when these cilia do not work properly. New research from ...
Jun 08, 2011 |
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New protein could prove powerful target for cholesterol lowering drugs
A protein has been discovered that may have a profound effect on cholesterol metabolism. That discovery raises the possibility that the protein, dubbed IDOL, could be a powerful target for cholesterol-lowering drugs, says ...
May 17, 2011 |
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