Study identifies a novel molecule that prevents the symptoms associated with allergen-induced asthma.
A new study carried out by researchers at Sanford-Burnham Medical Research Institute (Sanford-Burnham), the Max Planck Institute for Colloids and Interfaces (Germany), the Free University of Berlin (Germany), UC San Diego, and Shinshu University (Japan) has identified a novel molecule that prevents T-cells from orchestrating asthma brought on by allergens.
The findings, published on May 12 in Proceedings of the National Academy of Sciences (PNAS), show promise for a new potent therapeutic agent to treat asthma, a chronic disease affecting more than 25 million Americans.
“We have identified a synthetic molecule, a sulfate monosaccharide, that inhibits the signal that recruits T-cells to the lungs to start an asthma attack,” said Minoru Fukuda, Ph.D., adjunct professor in the Tumor Microenvironment and Metastasis Program at Sanford-Burnham. “The molecule substantially lessened asthma symptoms such as inflammation, mucus production, and airway constriction.”
The study, performed in mouse models for asthma research, showed that the synthetic sulfate monosaccharide blocks the interaction between chemokine CCL20—a T-cell signaling protein—and heparin sulfate, a molecule that protects and immobilizes CCL20 on epithelial cells in the lung. Blocking this interaction stalled the recruitment of the T-cells that trigger inflammation. The favorable results were achieved when the novel molecule was administered intravenously as well as by inhalation.
Although billions of dollars are spent every year on asthma medication, asthma still accounts for one quarter of all emergency room visits in the U.S. each year (~1.75 million ER visits). And, asthma is on the rise. Since 1980, asthma death rates overall have increased more than 50 percent among all genders, age groups, and ethnic groups. The death rate for children under 19 years old has increased by nearly 80 percent since 1980.
“There is currently no cure for asthma, and asthma control remains elusive for many patients, so there is still a need for research to find new therapies,” says Mike Tringale, senior vice president at the Asthma and Allergy Foundation of America (AAFA), a national asthma patient organization that has declared May National Asthma Awareness Month.
“Pulmonary inhalation of this new molecule may help reduce asthma symptoms by suppressing chemokine-mediated inflammatory responses,” said Fukuda. We look forward to the further development of the molecule to treat the millions of people who suffer from this chronic disease.”
Asthma is a chronic (long-term) lung disease that inflames and narrows the airways. Asthma causes recurring periods of wheezing (a whistling sound when you breathe), chest tightness, shortness of breath, and coughing. The effects are usually temporary, but if the episode is severe, a person may need emergency treatment to restore normal breathing.
Asthma affects people of all ages, but it most often starts during childhood. In the United States, more than 25 million people are known to have asthma, and 60 percent of cases are allergic asthma. About 5 million of these people are children. Despite the availability of treatments, asthma remains poorly controlled among many patients. People with asthma can be of any race, age, or sex, and treatment costs billions of dollars each year.
Join the conversation about asthma research on Facebook and Twitter by using the hash tag #asthma.
About Sanford-Burnham Medical Research Institute
Sanford-Burnham Medical Research Institute is dedicated to discovering the fundamental molecular causes of disease and devising the innovative therapies of tomorrow. Sanford-Burnham takes a collaborative approach to medical research with major programs in cancer, neurodegeneration and stem cells, diabetes, and infectious, inflammatory, and childhood diseases. The Institute is recognized for its National Cancer Institute-designated Cancer Center and expertise in drug discovery technologies. Sanford-Burnham is a nonprofit, independent institute that employs 1,200 scientists and staff in San Diego (La Jolla), Calif., and Orlando (Lake Nona), Fla. For more information, visit us at sanfordburnham.org.
Sanford-Burnham can also be found on Facebook at facebook.com/sanfordburnham and on Twitter @sanfordburnham.
The Asthma and Allergy Foundation of America (AAFA), a not-for-profit organization founded in 1953, is the leading patient organization for people with asthma, allergies, and related conditions. AAFA provides practical information, community based services and support through a national network of chapters, support groups and local community partners. AAFA develops health education, organizes state and national advocacy efforts and funds research to find better treatments and cures. Learn more at www.aafa.org.
Susan Gammon, Ph.D., M.B.A.
Sanford-Burnham Medical Research Institute
cell (858) 610-3808
office (858) 795-5012
Susan Gammon | newswise
Rutgers-led innovation could spur faster, cheaper, nano-based manufacturing
14.02.2018 | Rutgers University
New study from the University of Halle: How climate change alters plant growth
12.01.2018 | Martin-Luther-Universität Halle-Wittenberg
Satellites in near-Earth orbit are at risk due to the steady increase in space debris. But their mission in the areas of telecommunications, navigation or weather forecasts is essential for society. Fraunhofer FHR therefore develops radar-based systems which allow the detection, tracking and cataloging of even the smallest particles of debris. Satellite operators who have access to our data are in a better position to plan evasive maneuvers and prevent destructive collisions. From April, 25-29 2018, Fraunhofer FHR and its partners will exhibit the complementary radar systems TIRA and GESTRA as well as the latest radar techniques for space observation across three stands at the ILA Berlin.
The "traffic situation" in space is very tense: the Earth is currently being orbited not only by countless satellites but also by a large volume of space...
An international team of researchers has discovered a new anti-cancer protein. The protein, called LHPP, prevents the uncontrolled proliferation of cancer cells in the liver. The researchers led by Prof. Michael N. Hall from the Biozentrum, University of Basel, report in “Nature” that LHPP can also serve as a biomarker for the diagnosis and prognosis of liver cancer.
The incidence of liver cancer, also known as hepatocellular carcinoma, is steadily increasing. In the last twenty years, the number of cases has almost doubled...
In just a few weeks from now, the Chinese space station Tiangong-1 will re-enter the Earth's atmosphere where it will to a large extent burn up. It is possible that some debris will reach the Earth's surface. Tiangong-1 is orbiting the Earth uncontrolled at a speed of approx. 29,000 km/h.Currently the prognosis relating to the time of impact currently lies within a window of several days. The scientists at Fraunhofer FHR have already been monitoring Tiangong-1 for a number of weeks with their TIRA system, one of the most powerful space observation radars in the world, with a view to supporting the German Space Situational Awareness Center and the ESA with their re-entry forecasts.
Following the loss of radio contact with Tiangong-1 in 2016 and due to the low orbital height, it is now inevitable that the Chinese space station will...
Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP, provider of research and development services for OLED lighting solutions, announces the founding of the “OLED Licht Forum” and presents latest OLED design and lighting solutions during light+building, from March 18th – 23rd, 2018 in Frankfurt a.M./Germany, at booth no. F91 in Hall 4.0.
They are united in their passion for OLED (organic light emitting diodes) lighting with all of its unique facets and application possibilities. Thus experts in...
A new scenario seeking to explain how Mars' putative oceans came and went over the last 4 billion years implies that the oceans formed several hundred million...
23.03.2018 | Event News
19.03.2018 | Event News
16.03.2018 | Event News
23.03.2018 | Materials Sciences
23.03.2018 | Agricultural and Forestry Science
23.03.2018 | Physics and Astronomy