Public Release: 

CU School Of Medicine researchers offer new target for treating asthma

University of Colorado Anschutz Medical Campus

AURORA, Colo. (Feb. 18, 2015) - Researchers have found a potential new target for treating asthma, according to a study led by researchers at the University of Colorado School of Medicine at the Anschutz Medical Campus and published in the journal Nature Communications.

About 10 million Americans and more than 300 million people worldwide have asthma. The most common therapies now used with asthma patients address airway muscle contractions triggered by inflammation, but those treatment results are often temporary or incomplete.

In the article in Nature Communications, Christopher Evans, PhD, associate professor of medicine at the CU School of Medicine, and his co-authors propose targeting other factors related to the overproduction of mucus, an often overlooked factor that causes breathing problems associated with asthma.

Specifically, Evans and his colleagues found that the protein Mucin 5AC (Muc5ac) plays a critical role in airway hyperreactivity, a characteristic feature of asthma that makes it difficult to breathe. In experiments with mice, the scientists found that genetic removal of Muc5ac eliminated airway hyperreactivity.

"The role of mucus as a cause of asthma has been misunderstood and largely overlooked," Evans said. "We found that it is a potential target for reducing obstruction in asthma."


The research was supported by grants from the National Institutes of Health, the American Heart Association and the Crohn's and Colitis Foundation of America. Ten of the authors listed on the article are faculty at the CU School of Medicine.

About the University of Colorado School of Medicine

Faculty at the University of Colorado School of Medicine work to advance science and improve care. These faculty members include physicians, educators and scientists at University of Colorado Health, Children's Hospital Colorado, Denver Health, National Jewish Health, and the Denver Veterans Affairs Medical Center. The school is located on the Anschutz Medical Campus, one of four campuses in the University of Colorado system. To learn more about the medical school's care, education, research and community engagement, visit its web site.

Contact: Mark Couch, 303-724-5377,

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