Grant to MDI Bio Lab will support research on stress

Courtesy / Mount Desert Island Biological Laboratory James Coffman, a developmental biologist and associate professor at Mount Desert Island Biological Laboratory, received a grant to study chronic stress.

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By Staff

Mount Desert Island Biological Laboratory announced this week a grant to study genetic factors that cause chronic stress.

James Coffman, a developmental biologist and associate professor at the Bar Harbor lab, received a two-year grant totaling $166,000 from the National Institutes of Health for his research on the regulation of cortisol, a naturally occurring steroid that governs how the body responds to stress, according to a news release.

The research is expected to one day lead to novel interventions or therapies to mitigate the adult effects of early-life stress.

Organisms exposed to chronic early-life stress are more vulnerable later in life, long after a source of stress has been removed, to inflammatory diseases like arthritis, asthma, cancer, diabetes, heart disease and even mental illness.

Zebrafish share human traits

Coffman uses a common aquarium fish, the zebrafish, as a model to study the genetic circuitry through which elevated cortisol affects the development of the stress response system. The award will fund research on a specific gene, Klf9, that the Coffman laboratory has shown is activated by chronic cortisol exposure.

The zebrafish is considered an ideal model for the research because it is relatively easy and economical to work with and because its stress response system and associated regulatory genes are similar to those of humans.

The award was made by the Eunice Kennedy Shriver National Institute of Child Health and Human Development.

“Dynamic regulation of the body’s stress response system is critical for healthy physiology,” Coffman said in the release. “We have tantalizing evidence to suggest that Klf9 is a key gene for understanding both the development and the regulation of the stress response system. This grant will allow us to figure out what it is doing.”

The body’s stress response system is typically turned off when a source of stress is removed, he explained. But if the system is chronically elevated during early development, it remains chronically active later in life.

A stress switch that’s permanently set to an “on” position can result in inflammation and a poorly regulated immune system. That sets the stage for the development of chronic disease in later life.

About MDI Biological Laboratory

MDI Biological Laboratory is pioneering new approaches to regenerative medicine focused on developing drugs that slow age-related degenerative diseases and activate the natural ability to heal. This approach has identified potential therapies that could revolutionize the treatment of heart disease, muscular dystrophy and more. Through the Maine Center for Biomedical Innovation, the lab is preparing students for 21st-century careers and equipping entrepreneurs with the knowledge, skills and resources needed to turn discoveries into applications that improve human health and well-being. For more information, visit mdibl.org.