Genetic Discovery Holds Implications for Better Immunity, Longer Life

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Genetic discovery holds implications for better immunity, longer life

Working with Caenorhabditis elegans, a transparent nematode found in soil, researchers at Washington State University's Elson S. Floyd College of Medicine were the first to find that the nervous system controls the tiny worm's cuticle, a skin-like exterior barrier, in response to bacterial infections. Their study was published today in Science Advances.

Often used in biologic research as a model organism, the C. elegans nematode has a relatively simple structure while still sharing several genetic similarities with more complex mammals including humans, so this discovery holds implications for human health as well.

"Our study challenges the traditional view that a physical barrier such as a worm's cuticle or a human's skin does not respond to infections but is part of the body's innate defense against a pathogen," said Assistant Professor Jingru Sun, the corresponding author on the paper. "We show that during infection the nematode can change its cuticle structure and that defense response is controlled by the nervous system."

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