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Search results for natural killer cells
Immune cells can simultaneously stimulate and inhibit killer cell activity
Oct 22, 2007 |
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Dendritic cells, which are responsible for teaching other immune cells to attack infected or mutated cells, face a dangerous predicament. To demonstrate that an enemy has invaded, they must change to look ...
Specialized natural killer cells in human tonsils pack a punch
Mar 12, 2008 |
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Tonsils are a source of sore throats and an excuse for ice cream. But they also provide an important protective service, their immune-cell-rich tissue acting as the body’s first defense against the germs about to be swallowed ...
Major immune system branch has hidden ability to learn
Jan 26, 2009 |
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Half of the immune system has a hidden talent, researchers at Washington University School of Medicine in St. Louis have discovered.
Natural born killers -- how the body's frontline immune cells decide which cells to destroy
Jul 28, 2009 |
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(PhysOrg.com) -- The mechanism used by 'Natural Killer' immune cells in the human body to distinguish between diseased cells, which they are meant to destroy, and normal cells, which they are meant to leave ...
Some of your body's cells have a 'license to kill'
Feb 22, 2009 |
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Millions of "natural killer cells" -- nature's first line of defense against cancer, viruses and other infectious microbes --- are on constant patrol inside your body.
'Natural killer' cells keep immune system in balance
Oct 01, 2009 |
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Natural killer, or NK cells, are part of our innate immune system. A healthy body produces them to respond early during infection. They are activated and they kill cells infected with a given virus.
Important advance in the treatment of cancer and viral infections
Jan 18, 2009 |
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Dr. André Veillette, a researcher at the Institut de recherches cliniques de Montréal (IRCM), and his team led by postdoctoral fellow Dr. Mario-Ernesto Cruz-Munoz, will publish in the upcoming issue of the prestigious ...
Do antidepressants enhance immune function?
Medicine & Health / Medications
May 08, 2008 |
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Infection with human immunodeficiency virus (HIV), which leads to acquired immunodeficiency syndrome (AIDS), is an epidemic of global concern. According to the most recent estimates, released in November 2007, by the Joint ...
Engineered killer T cell recognizes HIV-1's lethal molecular disguises
Medicine & Health / HIV & AIDS
Nov 09, 2008 |
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Researchers at the University of Pennsylvania School of Medicine and colleagues in the United Kingdom have engineered T cells able to recognize HIV-1 strains that have evaded the immune system. The findings ...
New role for natural killers
Aug 27, 2008 |
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Scientists at the University of York have discovered a new role for a population of white blood cells, which may lead to improved treatments for chronic infections and cancer.
The immune system's role in hepatitis C recurrence after liver transplantation
Apr 01, 2009 |
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A new study pinpoints certain aspects of the immune system that may play a role in the recurrence and progression of hepatitis C virus (HCV) after liver transplantation. The study is in the April issue of Liver Transplantation, a jour ...
Master gene that switches on disease-fighting cells identified by scientists
Sep 13, 2009 |
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(PhysOrg.com) -- The master gene that causes blood stem cells to turn into disease-fighting 'Natural Killer' (NK) immune cells has been identified by scientists, in a study published in Nature Immunology today. ...
Scientists probe limits of 'cancer stem-cell model'; Melanoma does not fit the model
Dec 03, 2008 |
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(PhysOrg.com) -- One of the most promising new ideas about the causes of cancer, known as the cancer stem-cell model, must be reassessed because it is based largely on evidence from a laboratory test that ...
Wistar researchers invigorate 'exhausted' immune cells
Sep 15, 2008 |
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In battles against chronic infections, the body's key immune cells often become exhausted and ineffective. Researchers at The Wistar Institute have found a way to restore vigor to these killer T cells by blocking a key receptor ...
Common bacteria activating natural killer T cells may cause autoimmune liver disease
May 14, 2008 |
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A bacteria commonly found in soil and water triggered autoimmune symptoms in mice similar to those found in an incurable liver disease called Primary Biliary Cirrhosis (PBC). Reporting their findings in the May 15 Cell Ho ...
