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New Lead in Search for Parkinson's Cure Identified

by Bidita Debnath on October 6, 2016 at 12:29 AM
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 New Lead in Search for Parkinson's Cure Identified

In a paper published in the academic journal Nature Communications, Iowa State University scientists identified a protein called Prokineticin-2 (PK2) that may protect brain cells and is expressed with greater frequency in the early stages of Parkinson's disease.

"The neurons use PK2 to cope with stress. It's an in-built protective mechanism," said Anumantha Kanthasamy, a Clarence Hartley Covault Distinguished Professor in veterinary medicine, the Eugene and Linda Lloyd Endowed Chair of Neurotoxicology, and chair of biomedical sciences at Iowa State. Kanthasamy, one of the paper's lead authors, has been working to understand the complex mechanisms of Parkinson's and searching for a cure for the past two decades.

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Prokineticin-2 stimulates the neurons to produce more mitochondria, the part of the cell that produces energy. The resulting improved energy production helps neurons withstand the ravages of the disease, which is a neurological disorder that results in insufficient levels of dopamine in the brain.

Parkinson's disease is a progressive disorder that takes years to develop. A better understanding of Prokineticin-2 could turn up a means of slowing development of the disease or lead to new therapies, Kanthasamy said. For instance, there may be ways to stimulate more production of the protein or protein analogs to bind with its receptors on neurons, he said.
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The research team took a multidisciplinary and integrated approach to studying Parkinson's disease. The study was funded by a grant from the National Institutes of Health to Kanthasamy and Arthi Kanthasamy, a professor of biomedical sciences and Anumantha's spouse. Six graduate students in Kanthasamy's lab also contributed to the study, including co-first authors Richard Gordon and Matthew Neal, as well as researchers at other institutions.

The scientists studied cultured brain cells, a rodent model and post-mortem human brains to track changes brought on by Parkinson's disease, and they confirmed a high expression of Prokineticin-2 in each facet of the study.

It was this team effort that resulted in a comprehensive finding, Arthi Kanthasamy noted. The discovery prompted the research team to investigate more thoroughly.

"Of the thousands and thousands of factors we tracked in our experiments, why was this protein expressed so highly?" Arthi Kanthasamy said.

Finding the answer to that question poses a challenge that will take time to overcome, but the potential appears to be significant, she said.

Source: Newswise
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