A protein that may play a role in the progression of Alzheimer's

(in stopping the progression of Alzheimer's)

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People with Alzheimer's disease typically have higher levels of an enzyme called BACE1 in their brains. BACE1 produces a toxin that researchers have pinpointed as a cause of Alzheimer's, and now, researchers have found a way to prevent BACE1 from accumulating in the brain.
"We have identified the protein that takes this enzyme to the cell's garbage disposal for removal. Increasing levels of the protein allows more of the enzyme to be eliminated, possibly preventing the high levels seen in people with Alzheimer's disease," said senior author Giuseppina Tesco, MD, PhD, assistant professor in the department of neuroscience at Tufts University School of Medicine (TUSM).
Tesco and colleagues previously discovered that levels of the GGA3 protein were significantly lower in the brains of Alzheimer's patients than those free of the disease. In the current in vitro study, the team also found, unexpectedly, that the GGA3 protein must bind with the regulatory protein ubiquitin in order to lower enzyme levels.
"This insight advances our understanding of the molecular mechanisms of Alzheimer's disease. We hope that our approach will lead to new therapies that treat and prevent Alzheimer's, which currently affects as many as 5.1 million Americans," said Tesco. Tesco is also a member of the neuroscience program faculty at the Sackler School of Graduate Biomedical Sciences at Tufts, leading the Alzheimer's disease research laboratory. Read more: jbc.org

TODAY'S PHOTO

   

Milk: first step to functional ingredients

A new initiative to identify dairy bioactive ingredients has yielded 30 peptides that could be used to develop new functional food and beverage ingredients.   Read more: nutraingredients.com

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