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Latest Lymphocytes Stories

2012-03-30 07:43:43

4 signaling substances control the transformation of T cells The thymus plays a key role in the body's immune response. It is here where the T lymphocytes or T cells, a major type of immune defense cells, mature. Different types of T cells, designated to perform specific tasks, arise from progenitor cells that migrate to the thymus from the bone marrow. Researchers at the Max Planck Institute of Immunology and Epigenetics in Freiburg have generated artificial thymus tissue in a mouse...

2012-03-02 01:32:18

A new study turns the well established theory that antibodies are required for antiviral immunity upside down and reveals that an unexpected partnership between the specific and non-specific divisions of the immune system is critical for fighting some types of viral infections. The research, published online on March 1st in the journal Immunity by Cell Press, may lead to a new understanding of the best way to help protect those exposed to potentially lethal viruses, such as the rabies virus....

2012-02-06 13:07:53

Discovery could lead to more efficient vaccines 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. The discovery of the role played by the molecule CD74 could help immunologists investigate treatments that offer better immune responses against cancers, viruses and bacteria, and lead to more efficient vaccines. The findings are published in this...

2012-01-06 10:09:31

In a major shake-up of scientists' understanding of what determines the fate of cells, researchers at the Walter and Eliza Hall Institute have shown that cells have some control over their own destiny. The researchers, from the institute's Immunology division, drew their conclusion after studying B cells, immune system cells that can make antibodies. B cells can have multiple fates. Some of the more common fates are to die, divide, become an antibody-secreting cell or change what...

2011-12-14 19:12:39

'Human immune system' mouse model closely mimics a person's specific response and resolution of a tick-borne infection known as relapsing fever Imitating human diseases using an animal model is a difficult task, but Thomas Jefferson University researchers have managed to come very close. Reporting in the Proceedings of the National Academy of Sciences, a team of Jefferson immunologists found that a specialized "human immune system" mouse model closely mimics a person's specific response...

2011-09-08 09:43:27

Like humans, mice that live in their natural habitat encounter bacteria and other pathogens that exercise their immune system, yet the lab mice typically used in immunology studies are raised in isolation from most diseases. A study on natural killer cells in wild mice published this week in Molecular Ecology examines the hypothesis that the unsterile living conditions faced by humans and wild mice may improve the readiness of the immune system to fight new infections. The findings suggest...

2011-08-16 04:00:00

SANTA ROSA, Calif., Aug. 16, 2011 /PRNewswire/ -- Groundbreaking research demonstrates the ability of a specific form of Modified Citrus Pectin (MCP) to greatly enhance immune function. The study found that MCP activated B-cells in a dose-dependent manner, and induced a highly significant dose-dependent activation of T-cytotoxic cells and Natural Killer (NK) cells. The NK-cell's cancer killing activity was demonstrated against live leukemia cancer cells. The study is published in the...

2011-08-05 12:57:44

Innate memory provides protection against vaccinia Researchers have demonstrated that cells of the innate immune system are capable of "memory", and of mounting rapid protection to an otherwise lethal dose of live vaccinia virus. The study, published in the Open Access journal PLoS Pathogens on August 4th, challenges previous thought that only B cells and T cells can store memory to ward off future infection. The finding, by researchers from Beth Israel Deaconess Medical Center, Harvard...

2011-07-18 14:37:57

St. Jude Children's Research Hospital scientists provide insight into immune system biology and identify the mechanism that keeps white blood cell activity at a minimum until the specific immune response is needed St. Jude Children's Research Hospital scientists have identified a key immune system regulator, a protein that serves as a gatekeeper in the white blood cells that produce the "troops" to battle specific infections. Researchers demonstrated the protein, Tsc1, is pivotal for...

2011-06-06 19:34:22

Cancer cells do not grow equally well everywhere in the body. Often, they first create the conditions in which they can grow. Many years ago researchers discovered that solid tumors attract blood vessels to ensure their supply of nutrients by secreting specific factors. Now the immunologist Dr. Uta Höpken (Tumor and Immunogenetics Research Group at the Max Delbrck Center for Molecular Medicine, MDC, Berlin-Buch in the Helmholtz Association) and the hematologist Dr. Armin Rehm...


Latest Lymphocytes Reference Libraries

Thymus
2013-03-04 12:56:08

The thymus gland is an endocrine organ of the immune system located anteriolateral to the trachea and in between the lungs. Its primary function is to build T lymphocytes for the body’s immune system; therefore, it is most important during childhood and puberty, when it reaches its maximum size. After puberty, it will begin to atrophy and shrink in size. Old age generally brings about hypotrophy of the thymus. In children the thymus is grayish-pink in color and in adults it is yellow. On...

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Word of the Day
cock-a-hoop
  • Exultant; jubilant; triumphant; on the high horse.
  • Tipsy; slightly intoxicated.
This word may come from the phrase 'to set cock on hoop,' or 'to drink festively.' Its origin otherwise is unclear. A theory, according to the Word Detective, is that it's a 'transliteration of the French phrase 'coq a huppe,' meaning a rooster displaying its crest ('huppe') in a pose of proud defiance.' Therefore, 'cock-a-hoop' would 'liken a drunken man to a boastful and aggressive rooster.'
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