Tag: "killer" at biology news
Moderate aerobic exercise improves cardiovascular and nervous system function in HIV+
.... Areas that they'll be studying include: natural killer
cell level and activation in response to exercise in HIV disease, circuit training in HIV disease, and various levels of intensity during exercise in those with HIV disease. (Late last year the researchers presented a paper at the American Society of...
Immune cells in the liver take a ride
...t the movement of live immune cells called natural killer
T (NKT) cells has been seen in the liver, according to a study published in the April 5, 2005, issue of the Public Library of Science, an open-access, online journal. NKT cells are the guardians of the liver. They patrol the liver for foreign mo...
Understanding natural killers could lead to new hepatitis treatments
Researchers have discovered that natural killer
T (NKT) cells, the immune system's sentinels, patrol the labyrinthine blood vessels of the liver for invaders or signs of tissue damage and demonstrate a dogged behavior not seen before in other T cells. The new studies show that NKT cells crawl alon...
Real time microscopy tracks the course of developing T cells
...mus determines whether it matures into a helper or killer
T cell, or undergoes programmed cell death. The s...ion - which seals their fate as either helper T or killer
T cells - they make a beeline for the thymus interior (called the medulla). Though it's been kn...
New tool reveals secrets of migrating cells
...s other immune cells in fighting infections - or a killer
T cell that seeks and destroys cells infected with virus. On the other hand, uncommitted or immature T cells, what they call meanderers, wander slowly and apparently randomly around the outer layer, or cortex, of the thymus, perhaps in search of that...
Cancer research finds targets for new cholesterol-lowering therapies
...isks associated with heart disease, the number one killer
in the Western world. However, statins are not suitable for all patients, and reduce cardiovascular events by only 20%- 40%. Additionally, some genetic causes of high cholesterol cannot be treated with statins. According to LICR's Dr. Johan Ericsson,...
Can two killers make a cure?
...eloped so far. And while the idea of combining two killer
viruses sounds horrifying, the risks should be low. Despite much effort, no one has managed to develop an effective form of gene therapy to treat the lung problems of people with cystic fibrosis. The condition is caused by a mutation in the CFTR gen...
Recurrent miscarriages: Could prednisolone reduce the occurrence of this distressing condition?
... pointed to a significant role for uterine natural killer
(uNK) cells in pregnancy implantation," said Dr Quenby. uNK cells are the most numerous white blood cells found in the uterus and in the special lining of the uterus that occurs during pregnancy (the decidua). They are found close to the outermost ce...
Cloning advance: Researchers demonstrate direct transfer of terminally differentiated cell nuclei
...fspring after direct nuclear transfer from natural killer
T (NKT) cells, a unique lymphocyte cell population. The cloned pups, as well as their placentas, possess the rearranged T cell receptor (TCR) genomic loci that are specific for NKT cells, positively demonstrating that the cloned animals and their pla...
Unlike other mammals, newborn dolphins and orcas stay active 24/7 during first months of development
...ewborn were tough, pity the poor mother dolphin or killer
whale. Reporting in the June 30 edition of the pee...a developmental pattern in bottlenose dolphins and killer
whales that is unique from other mammals, with calves of both species active 24 hours a day during t...
New study finds how cells with damaged DNA alert the immune system
...ght on a long-standing question of how the natural killer
(NK) cells - which are able to attack tumors - can... lead author of the paper. "It reveals how natural killer
cells distinguish something they're supposed to get rid of versus something they're supposed to keep...
How do you spell recognition? C-O-R-E-C-E-P-T-O-R
...ocytes -- the other type of T -- are also known as killer
T cells because they go around destroying cells th...de an infected cell. Another crucial ability that killer
T cells exercise is the ability to distinguish a cell that is infected with a pathogen from one that...
'License to kill' enables powerful immune attack cells in mice
...ames: scientists commonly refer to them as natural killer
cells. The cells rapidly attack invaders and are c...h experiments in mice that the arsenals of natural killer
cells only become fully armed after a receptor on their surfaces interacts with a molecule on the su...
Simple sea sponge helps scientists understand tissue rejection
...y be a primitive form of our immune system's human killer
cells. Fernndez-Busquets has also been researching the role of the molecule called aggregation factor proteoglycan, which he has recently identified as another potential player in sponge tissue rejection reactions, and which is very easy to study in ...
More animals join the learning circle
...w Scientist, 11 June, p 12). But the evidence from killer
whales is much more conclusive because the process was observed from start to finish. Some researchers have suggested that many purported examples of cultural transmission can instead be explained by individuals discovering the skill on their own rat...
New vaccine protects more effectively against tuberculosis
...5). Globally, tuberculosis remains the number one killer
in adults. Moreover, multi-drug-resistant tuberculosis strains are on the rise which cannot be treated by first-line drugs. A vaccine against tuberculosis, termed BCG is available which, however, fails to protect against the most frequent form of dis...
Major breakthrough in the treatment of cancers and infectious diseases
...nown as EAT-2, present in NK cells, suppresses its killer
function. Inhibiting EAT-2 with medications could ...T-2 with medications could therefore stimulate the killer
function of NK cells, and increase their capacity to destroy cancer and virus-infected cells. These ...
Controlling the spread of invasive plants: a national effort one-day symposium, Aug. 30
...orse, creep of the giant salvinia or attack of the killer
tomatoes? Determining which non-native species are the greatest threats has been a challenge. But new online data could help scientists readily assess which of these invaders are the most menacing to native plants and ecosystems. The Invasive Specie...
Dangerous tricksters: Some bacterie use immune cells to reproduce
...er has been eliminated. Multiplication inside the killer
This is what normally happens. However, a whole r...lysosomal digestive enzymes and acid. Killing the killer
'Basically what this means is that the rhodococci manipulate their host cell, they make it themselv...
JCI table of contents September 1, 2005
... ACTIVATION: QUESTIONS IN IMMUNOTHERAPY Natural killer
T cells (NKT) are a subset of T lymphocytes that m...TLE : Glycolipid antigen induces long-term natural killer
T cell anergy in mice AUTHOR CONTACT : Luc Van Kaer Vanderbilt University Medical Center, Nashvill...
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