Brain Proteins, Patterns Reveal Clues to Understanding Epilepsy

by Colleen Fleiss on  August 12, 2018 at 12:48 AM Research News
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Proteins interact with each other to control the firing of brain cells, said UNLV, Tufts University School of Medicine researchers. This new finding offers hope for people living with epilepsy or anxiety.
Brain Proteins, Patterns Reveal Clues to Understanding Epilepsy
Brain Proteins, Patterns Reveal Clues to Understanding Epilepsy

The study, published Tuesday in Nature Communications, provides new insight into ways to regulate a specialized "compartment" of cells in the brain that controls their signaling. If scientists and doctors can influence that compartment, they can control the firing of brain cells, which may in turn stop or prevent seizures, among other things.

UNLV neuroscientist and lead author Rochelle Hines said controlling patterns of activity are very important to the brain's function.

"If we can better understand how the brain patterns activity, we can understand how it might go wrong in a disorder like epilepsy, where brain activity becomes uncontrolled," Hines said. "And if we can understand what is important for this control, we can come up with better strategies for treating and improving the quality of life for people with epileptic seizures and maybe other types of disorders as well, such as anxiety or sleep disorders."

The six-year project moved one step closer to answering decades-old questions about brain wave control, by quantitatively defining how two key proteins -- the GABAA receptor a2 subunit and collybistin -- interact. When the interaction was disrupted in rodent models, EEG tests showed brain waves moving out of control, mimicking patterns seen in humans with epilepsy and anxiety.

"That's the piece that could potentially change textbooks: Previously, we had questions about how these pieces fit together and thought that maybe a group of three or more proteins interacted," Hines said. "But our team's research strongly suggests that there's a very specific interaction between two of them, and this has implications for how neuroscientists might be able to regulate this area."

Coordinating the research effort was Stephen Moss, professor of neuroscience at Tufts and director of the AstraZeneca Laboratory for Basic and Translational Neuroscience in Boston. Moss said that the study results should stimulate the development of drugs that target the GABAA receptor a2 subunit as new, more effective treatments for epilepsy.

Source: Eurekalert

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