News tagged with cell immunity
Sensing self and non-self: New research into immune tolerance
At the most basic level, the immune system must distinguish self from non-self, that is, it must discriminate between the molecular signatures of invading pathogens (non-self antigens) and cellular constituents that usually ...
4 hours ago |
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Enhancing the effectiveness of a breast cancer treatment
Breast cancers expressing the protein HER2 have a particularly poor prognosis. Treatment with trastuzumab (Herceptin) benefits some patients with HER2-positive breast cancer, but it is not as effective as had been hoped. ...
8 hours ago |
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Stress in cells activates hepatitis viruses
People who have received a donor organ need lifelong immunosuppressant drugs to keep their immune system from attacking the foreign tissue. However, with a suppressed immune system, many infectious agents ...
8 hours ago |
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Scientists discover molecular secrets of 2,000-year-old Chinese herbal remedy
For roughly two thousand years, Chinese herbalists have treated Malaria using a root extract, commonly known as Chang Shan, from a type of hydrangea that grows in Tibet and Nepal. More recent studies suggest that halofuginone, ...
Feb 12, 2012 |
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Starve a virus, feed a cure? Findings show how some cells protect themselves against HIV
A protein that protects some of our immune cells from the most common and virulent form of HIV works by starving the virus of the molecular building blocks that it needs to replicate, according to research published online ...
Feb 12, 2012 |
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Cell death unleashes full force of human antiviral system
A scientific team led by researchers at the University of Geneva (UNIGE) and the Charite Berlin Medical University has made a completely unprecedented discovery showing how much our immune system is provoked into action when ...
Feb 09, 2012 |
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Secrets of immune response illuminated in new study
When disease-causing invaders like bacteria infect a human host, cells of various types swing into action, coordinating their activities to address the threat.
Feb 09, 2012 |
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Using the body's own immune system in the fight against cancer
DNA sequences from tumor cells can be used to direct the immune system to attack cancer, according to scientists at Washington University School of Medicine in St. Louis.
Feb 08, 2012 |
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Growing up on a farm directly affects regulation of the immune system
Immunological diseases, such as eczema and asthma, are on the increase in westernised society and represent a major challenge for 21st century medicine. A new study has shown, for the first time, that growing up on a farm ...
Feb 08, 2012 |
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Under the Microscope #6 -- Killer T-cells
In this video we see a killer T-cell of the immune system attacking a cancer cell.
Feb 07, 2012 |
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How autoreactive T cells slip through the cracks
Immune cells capable of attacking healthy organs "see" their targets differently than do protective immune cells that attack viruses, according to work published online this week in the Journal of Experimental Medicine.
Feb 06, 2012 |
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Low levels of lipid antibodies increase complications following heart attack
Coronary patients with low levels of an immune system antibody called anti-PC, which neutralises parts of the "bad" cholesterol, run a greater risk of suffering complications following an acute cardiac episode and thus of ...
Medicine & Health / Cardiology
Feb 06, 2012 |
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Researchers discover key to immune cell's 'internal guidance' system
University of British Columbia researchers have discovered the molecular pathway that enables receptors inside immune cells to find, and flag, fragments of pathogens trying to invade a host.
Feb 05, 2012 |
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'Gatekeeper' protein helps immune cells to sound a warning after encountering signs of tumor growth or infection
When the body’s own cells turn into ticking time bombs, as in cases of viral infection or cancerous transformation, a mechanism known as ‘cross-presentation’ enables the immune system’s ...
Feb 03, 2012 |
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Identical twins reveal mechanisms behind aging
In a recent study led by Uppsala University, the researchers compared the DNA of identical (monozygotic) twins of different age. They could show that structural modifications of the DNA, where large or small DNA segments ...
Feb 02, 2012 |
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