News tagged with cell function
Researchers find a way to delay aging of stem cells
Stem cells are essential building blocks for all organisms, from plants to humans. They can divide and renew themselves throughout life, differentiating into the specialized tissues needed during development, ...
May 24, 2012 |
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Researchers gain better understanding of mechanism behind tau spreading in the brain
Researchers at Mount Sinai School of Medicine have gained insight into the mechanism by which a pathological brain protein called tau contributes to the progression of Alzheimer's disease (AD) and other neurodegenerative ...
May 02, 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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New stem cell line provides safe, prolific source for disease modeling and transplant studies
Researchers have generated a new type of human stem cell that can develop into numerous types of specialized cells, including functioning pancreatic beta cells that produce insulin. Called endodermal progenitor (EP) cells, ...
Apr 05, 2012 |
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Red wine, fruit compound could help block fat cell formation
(PhysOrg.com) -- A compound found in red wine, grapes and other fruits, and similar in structure to resveratrol, is able to block cellular processes that allow fat cells to develop, opening a door to a potential ...
Apr 04, 2012 |
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New microfluidic chip can generate microbubbles to break open cells for biochemical analysis
Scientists have made many important discoveries in biology and medicine through studying the internal contents of cells. Some have isolated or identified nucleic acids or proteins with special functions, while ...
Chemistry / Analytical Chemistry
Mar 15, 2012 |
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How muscle cells seal their membranes
Every cell is enclosed by a thin double layer of lipids that separates the distinct internal environment of the cell from the extracellular space. Damage to this lipid bilayer, also referred to as plasma membrane, ...
Mar 14, 2012 |
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A foot in the door to genetic information
In the cell nucleus, DNA wraps around what are called histone proteins, forming regularly spaced spherical bodies called nucleosomes. Thus, large portions of the genetic material are inaccessible to the gene reading machinery. ...
Mar 07, 2012 |
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Why 'soot' could be the key to delivering drugs to cancer cells
Nano-scale tubes made of carbon could be used to safely penetrate human cells and deliver anti-cancer medicines or modified DNA molecules for gene therapy. Although there is a long way to go before the concept ...
Nanotechnology / Bio & Medicine
Feb 29, 2012 |
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Immunoproteasome crystal structure determined
Like a shredder, the immunoproteasome cuts down proteins into peptides that are subsequently presented on the cellular surface. The immune system can distinguish between self and nonself peptides and selectively ...
Feb 16, 2012 |
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Prion proteins play powerful role in survival, evolution of wild yeast strains
Prions, the much-maligned proteins most commonly known for causing "mad cow" disease, are commonly used in yeast to produce beneficial traits in the wild. Moreover, such traits can be passed on to subsequent generations and ...
Feb 15, 2012 |
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Metabolic errors can spell doom for DNA
Many critical cell functions depend on a class of molecules called purines, which form half of the building blocks of DNA and RNA, and are a major component of the chemicals that store a cell’s energy. ...
Jan 31, 2012 |
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Researchers discover the processes leading to acute myeloid leukemia
Researchers at UC Santa Barbara have discovered a molecular pathway that may explain how a particularly deadly form of cancer develops. The discovery may lead to new cancer therapies that reprogram cells instead ...
Jan 30, 2012 |
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Scientists use silk from the tasar silkworm as a scaffold for heart tissue
(PhysOrg.com) -- Damaged human heart muscle cannot be regenerated. Scar tissue grows in place of the damaged muscle cells. Scientists from the Max Planck Institute for Heart and Lung Research in Bad Nauheim ...
Jan 30, 2012 |
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New test spots early signs of mucopolysaccharidoses -- inherited metabolic disorders
A team of scientists, led by researchers at the University of California, San Diego School of Medicine and Zacharon Pharmaceuticals, have developed a simple, reliable test for identifying biomarkers for mucopolysaccharidoses ...
Jan 08, 2012 |
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