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:


(Date:3/30/2017)... March 30, 2017 Trends, opportunities and forecast ... behavioral), by technology (fingerprint, AFIS, iris recognition, facial recognition, ... others), by end use industry (government and law enforcement, ... and banking, and others), and by region ( ... Asia Pacific , and the Rest ...
(Date:3/28/2017)... -- The report "Video Surveillance Market by ... Devices), Software (Video Analytics, VMS), and Service (VSaaS, Installation ... 2022", published by MarketsandMarkets, the market was valued at ... reach USD 75.64 Billion by 2022, at a CAGR ... considered for the study is 2016 and the forecast ...
(Date:3/24/2017)... -- The Controller General of Immigration from Maldives Mr. ... have received the prestigious international IAIR Award for the most innovative high ... ... Maldives Immigration Controller ... (small picture on the right) have received the IAIR award for the ...
Breaking Biology News(10 mins):
(Date:7/17/2017)... ... July 17, 2017 , ... Co-Diagnostics, ... developed and intends both to manufacture and sell reagents used for diagnostic tests, ... Market. , Headquartered in Sandy, Utah, Co-Diagnostics’ intellectual property and technologies are protected ...
(Date:7/15/2017)... ... July 15, 2017 , ... Cuvette manufacturer FireflySci has been making ... the people at FFS have learned that their biggest asset was their amazing customer ... to launch new products to meet the changing needs of scientists at a rapid ...
(Date:7/14/2017)... Denville, USA/ Martinsried, Germany (PRWEB) , ... July ... ... a newly developed standardized solution for sample preparation of proteins to clean peptides ... the Diagenode Bioruptor® sonication system. , The PreOmics iST Kit is based ...
(Date:7/13/2017)... ... July 13, 2017 , ... FireflySci ... standards. Blast forward seven years and now they are home to a ... for wavelength accuracy, and resolution testing. , One mega advantage ...
Breaking Biology Technology: