Navigation Links
Immune system important in fight against stomach cancer
Date:6/28/2010

Researchers have identified cells in the immune system that react to the stomach ulcer bacterium Helicobacter pylori, one of the risk factors for the development of stomach cancer. This discovery could lead to faster diagnosis and treatment as well as a better prognosis for patients with stomach cancer, reveals a thesis from the University of Gothenburg, Sweden.

Helicobacter pylori is one of the most common bacterial infections in the world, and leads to chronic inflammation of the stomach. While carriers are generally symptom-free, the bacterium can cause stomach ulcers and, sometimes, the development of stomach cancer. As the symptoms of stomach cancer are varied, it is often discovered at a late stage and has a very poor prognosis.

"We don't know how the chronic inflammation caused by Helicobacter pylori affects the development of stomach cancer," says sa Lindgren, a researcher from the Department of Microbiology and Immunology. "So it was interesting to study how the immune system behaves towards Helicobacter pylori in the stomach."

The team looked at how NK cells (natural killer cells a type of immune cell) reacted to Helicobacter pylori. These cells are an important part of the immune system as they can both recognise and kill cells that are infected by viruses and bacteria as well as tumour cells.

"We found that a special type of NK cells was active against the stomach ulcer bacterium," says sa Lindgren. "These NK cells produced cytokines, which are the immune system's signal substances and act as a defence against the intruder."

The researchers' results suggest that NK cells can play an important role in the immune defence against Helicobacter pylori. Previous research has also shown that a high proportion of NK cells in tumour tissue has contributed to a better prognosis and longer survival for patients with stomach cancer, as these cells help to eliminate the tumour
'/>"/>

Contact: Asa Lindgren
asa.lindgren@microbio.gu.se
46-702-255-953
University of Gothenburg
Source:Eurekalert

Page: 1 2

Related biology news :

1. Bursts of waves drive immune system soldiers toward invaders
2. Key to out-of-control immune response in lung injury found
3. Flies can turn off their immune response
4. How the plant immune system can drive the formation of new species
5. Auto immune response creates barrier to fertility; could be a step in speciation
6. Immune police recognize good and bad guys in the body
7. Agent that triggers immune response in plants is uncovered
8. Immune cells promote blood vessel formation in mouse endometriosis
9. Influenza vaccine causes weaker immune response for children of rural Gabon than in semi-urban areas
10. The PIN codes of the immune system can be hacked
11. Pathogens use previously undescribed mechanism to sabotage host immune system
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/25/2014)... , Oct. 23, 2014 Research ... "Biometrics Market in Europe 2014-2018" report to their ... helps to assess individuals on the basis of their ... identification of both physiological traits such as fingerprints, face ... and behavioral traits such as keystroke patterns and speech ...
(Date:10/19/2014)... electricity access in India over the last 30 ... carbon emissions growth during that time, according to ... Nature Climate Change ., "Energy access is fundamental ... of life, including education, communication, and health," says ... , While increased energy access is widely agreed ...
(Date:10/17/2014)... This news release is available in German . ... need millions of sperms every day in order to reproduce? ... questions are the topic of the latest issue of the ... 16th, 2014). The evolutionary biologist Steven Ramm from Bielefeld University ... nature, it is not unusual for a female to copulate ...
Breaking Biology News(10 mins):Biometrics Market in Europe 2014-2018: Key Vendors are 3M Cogent, Cognitec, NEC and Safran 2Biometrics Market in Europe 2014-2018: Key Vendors are 3M Cogent, Cognitec, NEC and Safran 3Improved electricity access has little impact on climate change 2Sperm wars 2
... one day in the distant future, miniature, medically-savvy computers ... them on the spot by releasing a suitable drug, ... reality, computers must be sufficiently small to fit into ... to various cellular systems. These challenges can be best ...
... HOLE, MASS. -- Among the animals that are appealing ... to mind. Slender, limbless, primitive blobs that look pretty ... boring. I wouldn,t recommend them for a home aquarium," ... Biological Laboratory (MBL). Yet Nasi and his collaborators managed ...
... Darwin on the Galapagos Islands, researchers have been interested ... particular island, can lead to the formation of new ... selection is a process whereby heritable traits that enhance ... heritable traits become less common. Over time, animals and ...
Cached Biology News:A genetic device performs DNA diagnosis 2Sensing the light, but not to see 2LSU professor discovers how new corals species form in the ocean 2LSU professor discovers how new corals species form in the ocean 3
(Date:10/22/2014)... NEW YORK , Oct. 22, 2014 ... growth in the in vitro diagnostic (IVD) test industry, ... Kalorama Information. The healthcare market researcher listed more than 25 ... that could be the future of IVD products. Kalorama details ... industry, The Worldwide Market for In Vitro Diagnostic ...
(Date:10/22/2014)... The Americas Inorganic Refrigerants Market report defines and ... analysis and forecast of revenue. , Browse through ... report, to get an idea of the in-depth ... the segmentation in the Americas inorganic refrigerants market, ... , http://www.micromarketmonitor.com/market/americas-inorganic-refrigerants-4191654241.html , Inorganic refrigerants ...
(Date:10/22/2014)... Arlington, Massachusetts (PRWEB) October 22, 2014 ... recently announced the release of a new infographic, ... was to create a beautifully designed, easy to follow ... Ebola's transmission, areas of outbreak, symptoms and prevention. , ... have discovered that the 2014 Ebola outbreak represents not ...
(Date:10/22/2014)... 22, 2014 Grace Century, a private ... projects, announces the addition of Dr. Yousef “Josh” ... advisory team. Dr. Siddiqui will provide further healthcare expertise ... graduate of University College Medical School in ... medicine in 2001. With further certification as a General ...
Breaking Biology Technology:Report: Radical New IVD Test Approaches Key To Growth 2Report: Radical New IVD Test Approaches Key To Growth 3The Americas Inorganic Refrigerants Market is estimated to grow to $71.6 million by 2018 - New Report by MicroMarket Monitor 2The Americas Inorganic Refrigerants Market is estimated to grow to $71.6 million by 2018 - New Report by MicroMarket Monitor 3Involution Studios' Ebola Infographic Provides Key Disease Information and Statistics at a Glance 2Dr. Yousef Siddiqui joins the Grace Century Advisory Team 2
... Cell Therapeutics, Inc.,("CTI" or the "Company") (Nasdaq: ... institutional investor shall purchase, for $14.2 million, newly,issued 15.5% ... of,$1.27 per share. The transaction is the result of ... on September 26, 2008) under which,the investor had purchased ...
... Qi Lu, former EVP of,Yahoo!, continues to dedicate his passion ... HYSTA, USA. HYSTA is greatly,honored to have Qi,s on-going commitment ... August, he had served more than 10,years, which was a ... that has not changed is his dedication to serve the ...
... RainDance Technologies,Inc., a provider of innovative droplet-based ... today dedicated its new headquarters and,operations building ... Keynoting the event was Sir Richard ... medicine and Founder and Chief Scientific Officer ...
Cached Biology Technology:Cell Therapeutics, Inc. Announces Single Institutional Investor Purchases $14.2 Million of Senior Convertible Notes 2Cell Therapeutics, Inc. Announces Single Institutional Investor Purchases $14.2 Million of Senior Convertible Notes 3Update: HYSTA Announces Dr. Qi Lu to Continue on as President of HYSTA, USA 2RainDance Dedicates New Headquarters, Manufacturing Facility 2RainDance Dedicates New Headquarters, Manufacturing Facility 3