Researchers create vaccine for dust-mite allergies

Dust mites are tiny and ubiquitous, but they cause big allergic reactions for many people. University of Iowa researchers have created a vaccine that may provide relief to dust-mite allergies. Illustration by Austin Smoldt-Sáenz.

Vaccine reduced lung inflammation to allergens in lab and animal tests

If you’re allergic to dust mites (and chances are you are), help may be on the way.

Researchers at the University of Iowa have developed a vaccine that can combat dust-mite allergies by naturally switching the body’s immune response. In animal tests, the nano-sized vaccine package lowered lung inflammation by 83 percent despite repeated exposure to the allergens, according to the paper, published in the AAPS (American Association of Pharmaceutical Scientists) Journal. One big reason why it works, the researchers contend, is because the vaccine package contains a booster that alters the body’s inflammatory response to dust-mite allergens.

“What is new about this is we have developed a vaccine against dust-mite allergens that hasn’t been used before,” says Aliasger Salem, professor in pharmaceutical sciences at the UI and a corresponding author on the paper.

Dust mites are ubiquitous, microscopic buggers who burrow in mattresses, sofas, and other homey spots. They are found in 84 percent of households in the United States, according to a published, national survey. Preying on skin cells on the body, the mites trigger allergies and breathing difficulties among 45 percent of those who suffer from asthma, according to somestudies. Prolonged exposure can cause lung damage.

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