Navigation Links
'Nurse cells' make life and death decisions for infection-fighting cells

"Nurse cells" play an important role in deciding which developing infection-fighting cells, called T cells, live and which die, according to research funded by the National Science Foundation (NSF) and reported in the June issue of the journal Experimental Biology and Medicine.

The infection-fighting cells, known as thymocytes or T cells, live in the thymus, an organ in the upper portion of the chest. Loss of the thymus results in severe immunodeficiency and increased susceptibility to infection. The function of T cells produced by the thymus is to recognize harmful invaders. Once invaders have been identified, T cells then attempt to eliminate disease-infected cells.

"In early studies, it was suggested that thymic nurse cells only removed non-functional thymocytes," said Eve Barak, program director in NSF's Division of Molecular and Cellular Biology. "This research shows that nurse cells are performing a much bigger role in the thymus than we thought."

Thymic nurse cells were given their name because of their close relationship with thymocytes. These nurse cells have been reported to take up as many as 50 destined-to-die thymocytes into their own cell bodies.

Thymic nurse cells were discovered in 1980. Their existence was debated because many scientists found it difficult to believe that a cell could internalize another cell, said Jerry Guyden, a biologist at the City College of New York and lead researcher.

The thymus is present in most vertebrates, with a similar structure and function as the human thymus. Animal thymic tissue sold in butcher shops or at meat counters is known as sweetbread.
'"/>

Source:National Science Foundation


Page: 1

Related biology news :

1. Two chemicals boost immune cells ability to fight HIV without gene therapy
2. Once given no respect, cells tiny RNAS take drivers seat
3. How HIV disables the cells call for help
4. Stem cells electric abilities might help their safe clinical use
5. Scientists discover the molecular switch for nerve cells insulating jelly rolls
6. New insight into machinery of immune cells tentacles
7. Failure of scout cells may lead to cancer in transplant patients
8. Allergy cells can aggravate cancer and psoriasis
9. A key antibody, IgG, links cells capture and disposal of germs
10. Combination therapy boosts effectiveness of telomere-directed cancer cell death
11. Enzyme allows B cells to resist death, leading to leukemia
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Nurse cells make life and death decisions for infection fighting cells

(Date:5/28/2015)... , May 28, 2015 Industry analyst ... a new report titled "Markets for Self-Healing Materials: ... inorganic capsule and vascular systems, biomaterials, relevant shape ... to around $2.7 billion by 2020. ... extensive coverage of smart materials. Other recent n-tech reports ...
(Date:5/27/2015)... 27, 2015   Codonics (codonics.com), ... and image documentation solutions and Omnicell ... automation solutions, is pleased to announce their ... Safe Label System® (SLS), an award-winning FDA ... the Omnicell Anesthesia Workstation, helps prevent medication ...
(Date:5/26/2015)... Research and Markets ( ... "Saudi Arabia Biometric Systems Market Forecast and ... (Logo: http://photos.prnewswire.com/prnh/20130307/600769) , ,The biometric systems market in ... to grow at over 22% CAGR through 2020 ... the surging demand for better biometric technologies in ...
Breaking Biology News(10 mins):The Market for Self-Healing Materials to Reach $2.7 Billion by 2020 Says New n-tech Research Study 2The Market for Self-Healing Materials to Reach $2.7 Billion by 2020 Says New n-tech Research Study 3Codonics and Omnicell Expand Partnership 2Codonics and Omnicell Expand Partnership 3Codonics and Omnicell Expand Partnership 4Saudi Arabia Biometric Systems Market Forecast and Opportunities, 2020 with Morpho Safran, ZK Technlogy, and Suprema Dominating 2
... A new study investigating the respiratory system of insects ... for decades: why insects routinely stop breathing for minutes ... UC Irvine and Humboldt University propose that insects such ... beetles and bugs close off their respiratory systems periodically ...
... a stunning example of evolution at work, scientists have now ... changes in the skeletal armor of fish living in the ... 2005, issue of journal Science, bring new data to long-standing ... motivation is to try to understand how new animal types ...
... accustomed to nesting on islands free of predators began ... in the Aleutian archipelago in the 18th century. The ... study published this week in the journal Science now ... through entire island ecosystems, transforming the vegetation from lush ...
Cached Biology News:Why do insects stop 'breathing'? To avoid damage from too much oxygen, say researchers 2Why do insects stop 'breathing'? To avoid damage from too much oxygen, say researchers 3Octopuses occasionally stroll around on two arms, UC Berkeley biologists report 2Octopuses occasionally stroll around on two arms, UC Berkeley biologists report 3Octopuses occasionally stroll around on two arms, UC Berkeley biologists report 4Octopuses occasionally stroll around on two arms, UC Berkeley biologists report 5Introduced foxes transformed vegetation on Aleutian Islands from lush grasslands to tundra 2Introduced foxes transformed vegetation on Aleutian Islands from lush grasslands to tundra 3Introduced foxes transformed vegetation on Aleutian Islands from lush grasslands to tundra 4
(Date:5/28/2015)... 28, 2015  Quest Diagnostics Incorporated (NYSE: DGX ... announced that it is scheduled to speak at the ... Steve Rusckowski , the company,s President and CEO, will ...  The presentation is scheduled for Tuesday, June 2, 2015 ... will be webcast live during the conference and will ...
(Date:5/28/2015)... 28, 2015 ... announced the addition of Jain PharmaBiotech,s ... Markets and Companies"  to their offering.  ... describes and evaluates animal biotechnology and ... pharmaceuticals as well as improvement in ...
(Date:5/28/2015)... , May 27, 2015 Research ... addition of Jain PharmaBiotech,s new report ... their offering. An increasing use ... industries is anticipated. Nanotechnology will be applied ... from formulations for optimal delivery to diagnostic ...
(Date:5/28/2015)... 2015 Research and Markets( http://www.researchandmarkets.com/research/l9dqwt/animal_genetics ) has ... by Products, by Testing services - Global Forecast to ... global animal genetics market is estimated to be worth ... CAGR of 8-9% during the forecast period of 2014 ... by increasing animal protein consumption, increasing adoption of advanced ...
Breaking Biology Technology:Quest Diagnostics to Speak at the Jefferies 2015 Global Healthcare Conference 2Global Animal Biotechnology Report 2015 - Technologies, Markets and Companies Analysis to 2024 2Global Animal Biotechnology Report 2015 - Technologies, Markets and Companies Analysis to 2024 3Global Nanobiotechnology Market 2015-2024 - Applications, Markets and Companies 2Global Nanobiotechnology Market 2015-2024 - Applications, Markets and Companies 3Global Animal Genetics (Canine, Equine, Poultry, Porcine, Bovine, and Genetic Material) Market 2015 - Global Forecast to 2020 2
... plant-derived insulin program, scheduled to enter the ... SBS, CALGARY, July 29 /PRNewswire-FirstCall/ - SemBioSys ... of therapeutic,proteins for metabolic and cardiovascular diseases, today ... (IND) application for,safflower-produced recombinant human insulin to the ...
... American College of Chest Physicians (ACCP) Guidelines Will Increase ... Use of Trellis(R) Peripheral Infusion ... College of Chest,Physicians (ACCP) has published new evidence-based clinical ... use of pharmacomechanical,thrombolysis for acute iliofemoral deep vein thrombosis ...
... Washington, DC State and local officials have taken ... nanomaterials, a major step for a cutting-edge technology that ... , On July 28, the Cambridge (Mass.) Public ... take several steps to gain a better understanding of ...
Cached Biology Technology:SemBioSys submits IND for safflower-produced insulin to U.S. FDA 2SemBioSys submits IND for safflower-produced insulin to U.S. FDA 3Chest Physicians Now Suggest Early Intervention for Certain Blood Clots in DVT 2Local officials move toward monitoring nanotechnologies 2Local officials move toward monitoring nanotechnologies 3
... Camera hood with 5.6" TFT color screen, without ... system use digital camera with 8.0 mega pixel ... requirements and small budget. View image from large ... specific feature. It is suitable to capture image ...
... DNA detection has been improved. With Gene Coloring ... can be detected > 20 ng. The excised ... organic solvent extraction or with other commercially available ... DNA excised from agarose gel can be used ...
...
Mouse monoclonal antibody raised against a full length recombinant CSNK2A2. NCBI Entrez Gene ID = CSNK2A2...
Biology Products: