Drinkable Cocktail Interferes with Alzheimer’s and Restores Memories

New Compound for Treatment of Alzheimer’s

Amyloid beta plaques accumulated in a mouse hippocampus.

Yale researchers have identified a drinkable cocktail of designer molecules that interferes with a crucial first step of Alzheimer’s and even restores memories in mice, they report Jan. 2 in the journal Cell Reports.

The binding of amyloid beta peptides to prion proteins triggers a cascade of devastating events in the progression of Alzheimer’s — accumulation of plaques, a destructive immune system response, and damage to synapses.

“We wanted to find molecules that might have a therapeutic effect on this network,” said senior author Stephen Strittmatter, the Vincent Coates Professor of Neurology, professor of neuroscience, and director of the Yale Alzheimer Disease Research Center.

Strittmatter and research scientist Erik Gunther screened tens of thousands of compounds looking for molecules that might interfere with the damaging prion protein interaction with amyloid beta. They found that an old antibiotic looked like a promising candidate but was only active after decomposing to form a polymer. Related small polymers retained the benefit and also managed to pass through the blood-brain barrier.

They then dissolved the optimized polymeric compound and fed it to mice engineered to have a condition that mimics Alzheimer’s. They found that synapses in the brains were repaired and mice recovered lost memory.

A collaborating team at Dartmouth University reported a positive response when they delivered the same cocktail to cells modeled to have Creutzfeldt-Jakob Disease, a devastating neurological condition caused by infection with misfolded prion protein.

The next step is to verify the compounds aren’t toxic in preparation for translation to clinical trials for Alzheimer’s disease.

Research was funded by grants from the NIA, the NINDS, the Alzheimer’s Association and the Falk Medical Research Trust to Strittmatter.

Publication: Erik C. Gunther, et al., “Rescue of Transgenic Alzheimer’s Pathophysiology by Polymeric Cellular Prion Protein Antagonists,” Cell Reports, 2018; doi:10.1016/j.celrep.2018.12.021

4 Comments on "Drinkable Cocktail Interferes with Alzheimer’s and Restores Memories"

  1. Bruce Campbell | January 5, 2019 at 2:25 pm | Reply

    Based on the groundbreaking research at the Buck Institute BY Dr. Bredesen and colleagues, this may be a complimentary therapy applied at the point where the cause(s) of the dementia or Alzheimer’s has/have been determined and eliminated and treatment has entered the recovery phase to start removing amyloid plaque.

  2. I would love to have my husband on one of these clinical trials.

  3. I love my husband to take a trail as the doctors told heim they can’t do any thing fo him. He is only in middle stages I think because no one’s tells us.

  4. How can we get on the trial? Thank you! Lauren Anderson [email protected]

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