Daily non-political popular news in brief.
Researchers find the mechanism by which cells resist chemotherapy
03-02-2007 · EurekAlert!A team of researchers from the UAB's Mutagenesis Group, led by Dr. Jordi Surralés, has identified one of the mechanisms used by cancer cells to resist chemotherapy. This discovery, published in the EMBO Jorunal, will make it possible to develop strategies to make tumors more vulnerable to chemotherapy.
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Keywords: researchers, mechanism, cells, resist, chemotherapy, researcher, cell
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- Impaired Gene Helps Nonsmall-cell Lung Cancer Resist Drug
10-02-2006 · ScienceDaily
Lung cancer cells with a defective version of a potential tumor suppressor gene are highly resistant to attack by a platinum-based drug commonly used to treat the disease, researchers at the University of Texas M. D. Anderson Cancer Center and the University of Texas Southwestern Medical Center at Dallas report in the cover article of the Oct. 1 edition of Cancer Research.
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- Common anesthetic may induce cell death, generation of Alzheimer's-associated protein
02-06-2007 · EurekAlert!
A new study has found how one of the most commonly used anesthetics may produce Alzheimer's-like changes in the brain. Researchers from Massachusetts General Hospital and colleagues describe the mechanism by which the anesthetic isoflurane may induce both the cell-death process known as apoptosis and the generation of amyloid-beta protein in cultured neural cells.
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- Why your fertility cells must have 'radio silence'
01-29-2008 · EurekAlert!
Researchers in Kobe, Japan, and Montreal, Canada, have uncovered a previously unknown mechanism which causes embryonic germ cells -- which later develop into sperm or ova -- to go through a period of "transcriptional silence," during which information from the cell's DNA cannot be copied. Without this important phase, unique to cells of this type, an organism produces sterile offspring. Their results were published in January 2008, in the journal Nature.
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- Hydrogen-powered lawnmowers?
01-23-2007 · EurekAlert!
In a breakthrough that could make fuel cells practical for such small machines as lawnmowers and chainsaws, researchers have developed a new mechanism to efficiently control hydrogen fuel cell power.
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- A new system for collaboration in cell communication
06-26-2007 · EurekAlert!
Investigators from the Institute of Research in Biomedicine have identified a new signalling mechanism among cells in the fruit fly, Drosophila melanogaster. The researchers found that two independent groups of cells generate the same signal by different pathways and that these cells subsequently act together to send the signal to the target cell. In this manner, the receptor cell receives the signal from two distinct sources.
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- Defense mechanism of tumors discovered
02-12-2007 · Massachusetts Institute of Technology (MIT)
MIT researchers have identified a critical defense mechanism that tumor cells employ to survive the toxic effects of chemotherapy--knowledge that could very soon lead to more effective cancer treatments.
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- Chromosome glue repairs damaged DNA
07-13-2007 · EurekAlert!
When a strand of DNA breaks in the body's cells, it normally does not take long until it has been repaired. Now researchers at the Swedish medical university Karolinska Institutet have discovered a new mechanism that helps to explain how the cell performs these repairs. The results are presented in Science.
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- Researchers reveal HIV peptide's possible pathway into the cell
01-17-2008 · EurekAlert!
Two theoretical physicists at Rensselaer Polytechnic Institute have uncovered what they believe is the long-sought-after pathway that an HIV peptide takes to enter healthy cells. The theorists analyzed two years of biocomputation and simulation to uncover a surprisingly simple mechanism describing how this protein fragment penetrates the cell membrane. The discovery could help scientists treat other human illnesses by exploiting the same molecules that make HIV so deadly proficient.
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- Identified mechanism in the malaria parasite to help it adapt to infected individuals
08-02-2007 · EurekAlert!
Plasmodium falciparum is responsible for the most severe forms of human malaria. Invasion of red blood cells is an essential step of the complex life cycle of this parasite. Alfred Cortés, IRB Barcelona researcher, together with researchers from NIMR, have discovered that the parasite has the ability to switch on and off the expression of some of the proteins it uses to enter its victim's red blood cells.
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- Getting one's protein in a bunch -- When quality control fails in cells
01-16-2007 · EurekAlert!
Over time, a relatively minor mistake in protein production at the cellular level may lead to serious neurological diseases. But exactly how the cell avoids such mistakes has remained unclear until now. Researchers at Ohio State University found the mechanism that prevents such errors, and explain their findings in the Proceedings of the National Academy of Sciences.
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