Immunotherapy for Cerebral Amyloid Angiopathy

About the Research Project
Program
Award Type
Pilot
Award Amount
$150,000
Active Dates
April 01, 2007 - March 31, 2009
Grant ID
A2007352
Goals
The long-term goals of this research are to determine how CAA causes stroke and dementia and to discover effective treatments for CAA and AD.
Summary
Cerebral amyloid angiopathy (CAA) involves deposition of a protein called amyloid-ß (Aß) into brain blood vessels. It is almost universally found in patients with Alzheimer’s Disease (AD). CAA can lead to stroke and dementia, likely by causing blood vessel dysfunction and lowering blood flow to the brain. We hypothesize that treating CAA with an anti-Aß antibody (an antibody directed against the Aß protein) will improve blood vessel function and blood flow to the brain. If true, this would prove that Aß deposits are the reason why CAA leads to blood vessel dysfunction and reduced brain blood flow. It would also mean that these antibodies may represent a new treatment for CAA and AD. The specific aims of this project are as follows: 1. To determine whether ‘preventive’ anti-Aß antibodies prevent or substantially reduce blood vessel dysfunction and reductions in brain blood flow caused by CAA. 2. To determine whether ‘therapeutic’ anti-Aß therapy decreases the severity of CAA, and if so, will such therapy reduce blood vessel dysfunction and reductions in brain blood flow caused by CAA. The long-term goals of this research are to determine how CAA causes stroke and dementia and to discover effective treatments for CAA and AD.
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