New Findings About Brain Proteins Suggest Possible Way To Fight Alzheimer's (part 2)

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ScienceDaily

Dr. Herz said the study is especially important because this mechanism involves another protein involved in Alzheimer's called ApoE4, which is the primary risk factor for the most frequent late-onset form of the disease. The receptor that binds to ApeE molecules also binds to Reelin, and is part of the red-light/green-light complex that controls the sensitivity of the NMDA receptors.

"These results imply that Reelin, ApoE and beta-amyloid converge on the same molecular mechanism, which is critical in the Alzheimer's disease process, and Reelin may be a common factor to fight both beta-amyloid and mutated ApoE," Dr. Herz said. "This study establishes a rationale that ApoE receptors have an action that can keep the Alzheimer's disease process at bay by preventing damage in the first place."

The researchers are currently studying the role of ApoE4 in this mechanism. Mimicking or preserving normal Reelin function to stimulate the ApoE receptors might provide a path to stave off the disease, Dr. Herz said.

Other UT Southwestern authors included lead author Dr. Murat Durakoglugil, assistant instructor of molecular genetics; graduate student Ying Chen; Dr. Charles White, professor of pathology; and Dr. Ege Kavalali, associate professor of neuroscience.

The study was funded by the National Institutes of Health, the American Health Assistance Foundation, the Perot Family Foundation and the Humboldt Foundation.