Navigation Links
Fight against hay fever and other allergies helped by new immune system discovery
Date:12/26/2007

A mechanism which can lead to hay fever and other allergic reactions, by preventing the immune system from regulating itself properly, has been discovered by scientists. Researchers hope their finding, published today (Thursday 27 December 2007) in the journal PLoS Biology, will allow therapies to be developed that treat allergies by stopping this mechanism.

The new research shows that a gene known as GATA-3 can block the development of regulatory T-cells in the immune system by locking another gene. This gene, FOXP3, is key to regulatory T cells and when it is blocked new regulatory T cells stop being produced.

The scientists, from Imperial College London, the Swiss Institute of Allergy and Asthma Research in Davos, Switzerland, and other international institutions, hope that if they can develop therapies to stop FOXP3 being blocked, they can ensure that regulatory T cells are free to work normally.

Regulatory T cells are believed to be vital for averting allergic reactions in healthy individuals because they keep the other cells in check, suppressing pro-allergic cells known as Th2 cells and stopping the immune system from needlessly attacking the body.

In people with allergies, some types of cells in the immune system, particularly the Th2 cells, wrongly identify a particular allergen, such as pollen, as being dangerous. Whenever the person encounters this allergen again, these cells promote the production of antibodies to attack it, causing an allergic reaction.

Dr Carsten Schmidt-Weber, the principal investigator on the research from the National Heart and Lung Institute at Imperial College London, said: This finding will help us to understand how healthy individuals are able to tolerate allergens and what we need to do to re-induce tolerance in the immune systems of patients with allergies. We hope that we will soon be able to help not only patients suffering from single allergies, but also those with multiple ones - the atopic patients.

The researchers reached their conclusions by analysing the genes related to regulatory T-cells and analysing how they interacted. They confirmed their findings by using mouse models to show that mice which were genetically engineered to express the GATA-3 gene in all T cells showed dramatic defects in the production of regulatory T-cells.

Dr Schmidt-Weber and his colleague Professor Stephen Durham, also from the National Heart and Lung Institute at Imperial College, hope the new findings will eventually lead to new, more effective treatments for hayfever and other allergies, to be used in combination with existing immunotherapies. They hope such treatments could help prevent hay fever and allergic asthma from reaching epidemic proportions.


'/>"/>

Contact: Laura Gallagher
L.Gallagher@imperial.ac.uk
44-020-759-46702
Imperial College London
Source:Eurekalert

Related medicine news :

1. Preclinical study suggests organ-transplant drug may aid in lupus fight
2. Computers help chemists fight emerging infections
3. Study shines more light on benefit of vitamin D in fighting cancer
4. Texas Supreme Court Rules Against Medicare HMOs in Hospital Reimbursement Fight
5. HIV Drug Might Fight Cancer
6. ADA Challenges Marylanders to Step Out to Fight Diabetes Epidemic
7. UVa researcher awarded $3.6 million grant to fight drug-resistant bacteria
8. Drug, Pacemaker Fight Irregular Heartbeat
9. Scripps Research scientists shed new light on how antibodies fight HIV
10. The fight against colorectal cancer
11. Especially Yours and Paula Young Team up with Diahann Carroll and Jaclyn Smith in the Fight Against Breast Cancer
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/12/2017)... ... October 12, 2017 , ... The ... demand of today’s consumer and regulatory authorities worldwide. From Children’s to Adults 50+, ... to meet the highest standard. , These products are also: Gluten Free, ...
(Date:10/12/2017)... ... October 12, 2017 , ... The American College of Medical ... Friedman, PhD, FACMI, during the Opening Session of AMIA’s Annual Symposium in Washington, D.C. ... honor of Morris F. Collen, a pioneer in the field of medical informatics, this ...
(Date:10/12/2017)... (PRWEB) , ... October 12, 2017 , ... ... drug delivery system that we intend to develop to enable prevention of a ... lead to severe hearing loss, especially in pediatric patients. For cisplatin, hearing loss ...
(Date:10/12/2017)... , ... October 12, 2017 , ... HMP , ... recipient of a 2017 Folio Magazine Eddie Digital Award for ‘Best B-to-B Healthcare Website.’ ... on October 11, 2017. , The annual award competition recognizes editorial and design excellence ...
(Date:10/12/2017)... ... 2017 , ... On Saturday, October 21, the Health & Wellness Center at ... raise money for the American Heart Association Heart Walk. Teams of up to 10 ... to keep their treadmills moving for 5 hours. Treadmills will start at 7:00 p.m. ...
Breaking Medicine News(10 mins):
(Date:10/11/2017)...  True Health, a leader in integrated diagnostics ... National Breast Cancer Awareness month to educate doctors ... Research recently published in ... than 10 million American women are at significant ... BRCA2 and have not had testing. These mutations can ...
(Date:10/5/2017)...  In response to the nationwide opioid epidemic, ... (AAOMS) released prescribing recommendations that urge ibuprofen – ... a first-line therapy to manage a patient,s acute ... Recognizing the value and importance of the ... Acute and Postoperative Pain Management" stresses that practitioners ...
(Date:10/2/2017)... INDIANAPOLIS , Oct. 2, 2017  Eli Lilly ... its financial results for the third quarter of 2017 ... a conference call on that day with the investment ... performance. The conference call will begin at ... public can access a live webcast of the conference ...
Breaking Medicine Technology: