Neuroscience
Restoration of Healthy Wnt Signaling to Prevent and/or Allay Alzheimer's Disease
2020 ADDF-Harrington Scholar
With more than 50 million people worldwide living with Alzheimer's disease (AD), its tragic results are impacting countless lives. A therapy that halts or slows the progress of this disease is one of humankind's most significant unmet needs.
The blood-brain barrier (BBB) controls what nutrients get into the brain from blood (e.g. glucose that provides energy). With AD, the BBB no longer functions properly, and the brain receives insufficient glucose while allowing blood proteins to penetrate, causing inflammation. Preventing this loss of function could be a valuable therapeutic approach for AD.
“Wnt” are signaling proteins that are important in maintaining a healthy BBB, keeping nerve cells healthy, and promoting the clearance of toxic proteins like tau and amyloid.
Dr. Fish and his team have identified an enzyme at the BBB, called Notum, which prevents Wnt signaling by removing an essential palmitoleate group (fatty acid) from Wnt proteins. “We have found that Notum is increased in mouse models of AD and in post-mortem brain samples from AD patients,” Dr. Fish says. “Thus, we hypothesize that inhibiting the increased Notum will help to restore Wnt signaling, the result being a healthy BBB in AD patients.”
Dr. Fish has indeed developed a potential drug that can inhibit Notum. He and his collaborators have reason to believe this drug may even have the potential for use in other conditions such as colorectal cancer. With insights from his Harrington Discovery Institute team, their drug is being rapidly progressed to testing in animal models of AD and safety studies to determine its suitability for treating AD patients.
"An invaluable asset in working with our Harrington team is being able to have critical and supportive peer reviews as we develop this drug."
Source: Article from 2020-2021 Annual Publication
This website uses cookies to improve your experience. We'll assume you're ok with this, but you can opt-out if you wish.
Necessary
This website uses cookies to improve your experience while you navigate through the website. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. These cookies do not store any personal information.
Non-Necessary
We also use third-party cookies that help us analyze and understand how you use this website. These cookies will be stored in your browser only with your consent. You also have the option to opt-out of these cookies. But opting out of some of these cookies may have an effect on your browsing experience. It is mandatory to procure user consent prior to running these cookies on your website.