Navigation Links
U of M research uncovers gene's contribution to asthma susceptibility
Date:9/23/2013

MINNEAPOLIS/ST. PAUL (09/23/2013) -- New research from the University of Minnesota College of Veterinary Medicine (CVM) has uncovered the role gene ORMDL3 plays in the disease asthma. ORMDL3, a gene recently linked to asthma susceptibility, has now been linked to the body's ability to recruit inflammatory cells during an airway allergic reaction. Study findings appear today in the journal Nature Communications.

U of M researchers including Srirama Rao, Ph.D., (P. Sriramarao), CVM professor in the Department of Veterinary and Biomedical Sciences and associate dean for research, as well as professor in the U of M Medical School's Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, has identified a function of how ORMDL3 regulates the recruitment of inflammatory cells to airways, thus causing airway inflammation, in a mouse model.

Sung Gil Ha, Ph.D., a CVM post-doctoral fellow and the study's lead author, and colleagues have identified factors that up-regulate the ORMDL3 gene in specific white blood cells such as eosinophils during allergic asthma. Eosinophils are white blood cells intended to help protect the body from parasites; however, in the case of certain types of inflammation including exposure to allergens, instead of providing protection, they can cause tissue damage leading to asthma or other allergic disorders.

Not much is known about the function of ORMDL3 in asthma. By silencing or over-expressing ORMDL3 in eosinophils, the group has identified molecules regulated by the gene. These molecules enable eosinophils to congregate in airways where they cause allergic inflammation.

When turning the ORMDL3 gene off, researchers found lower levels of integrins expressed on the surface of eosinophils, meaning a decreased ability of eosinophils to migrate and cause inflammation in the airways.

"While exciting, our finding is just one piece of the puzzle," said Rao. "The more we understand about various asthma susceptibility genes including ORMDL3, the better positioned we will be to strategize new treatment options."

The discovery provides momentum for future understanding of the pathogenesis of asthma and role of genetics in inflammatory allergic reactions. This research is not only relevant for asthma but potentially other allergic disorders such as those of the GI tract and skin. The American Academy of Allergy, Asthma & Immunology estimates the number of asthma suffers internationally at 300 million with 250,000 annual deaths attributed to the disease.

Genetic disposition can influence the severity or susceptibility to an asthmatic reaction to allergens or environmental factors such as stress and cold.

The ORMDL3 gene studied by U of M researchers has been linked to asthma in various ethnic groups worldwide.


'/>"/>

Contact: Miranda Taylor
tayl0551@umn.edu
612-626-2767
University of Minnesota Academic Health Center
Source:Eurekalert

Related biology news :

1. Study by UC Santa Barbara researchers suggests that bacteria communicate by touch
2. Research reveals first evidence of hunting by prehistoric Ohioans
3. Diabetes Research Institute develops oxygen-generating biomaterial
4. APS issues new policy requiring identification of sex or gender in reporting scientific research
5. UC Santa Barbara researchers discover genetic link between visual pathways of hydras and humans
6. Study jointly led by UCSB researcher supports theory of extraterrestrial impact
7. U of Alberta researcher steps closer to understand autoimmune diseases
8. Research on flavanols and procyanidins provides new insights into how these phytonutrients may positively impact human health
9. A project to research biological and chemical aspects of microalgae to fuel approach
10. Scripps Research discoveries lead to newly approved drug for infant respiratory distress syndrome
11. Researchers attempt to solve problems of antibiotic resistance and bee deaths in one
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/5/2017)... -- The Allen Institute for Cell Science today announces the ... and dynamic digital window into the human cell. The ... of deep learning to create predictive models of cell ... growing suite of powerful tools. The Allen Cell Explorer ... available resources created and shared by the Allen Institute ...
(Date:4/5/2017)... April 4, 2017 KEY FINDINGS ... expand at a CAGR of 25.76% during the forecast ... the primary factor for the growth of the stem ... https://www.reportbuyer.com/product/4807905/ MARKET INSIGHTS The global stem cell ... application, and geography. The stem cell market of the ...
(Date:4/3/2017)... 3, 2017  Data captured by IsoCode, ... detected a statistically significant association between the ... treatment and objective response of cancer patients ... predict whether cancer patients will respond to ... well as to improve both pre-infusion potency testing ...
Breaking Biology News(10 mins):
(Date:4/26/2017)... ... April 26, 2017 , ... Looking ... team-building and cooking events company, offers one-of-a-kind gifts, ranging from gourmet cooking experiences ... California cuisine, and guests leave inspired with new cooking tips and techniques, thanks ...
(Date:4/26/2017)... ... April 25, 2017 , ... LABS, Inc. (LABS) announced in December ... its extensive test menu: Nucleic Acid Testing (NAT) for ZIKV; and Enzyme Immunoassays (EIAs) ... to offer NAT screening for blood donors under an Investigational New Drug (IND) study ...
(Date:4/26/2017)... ... April 26, 2017 , ... As the call for ... industry stakeholders, the discussion surrounding the topic will continue at WEDI 2017- Driving ... Los Angeles, Calif. Hosted by the Workgroup for Electronic Data Interchange (WEDI), the ...
(Date:4/25/2017)... ... 25, 2017 , ... Franz Inc ., an early ... and market leader for Semantic Graph Database technology, today announced ... most effective system for developing and deploying applications to solve the challenges developers ...
Breaking Biology Technology: