2022 Student Research Conference:
35th Annual Student Research Conference

Computational Investigation of the Aducanumab Antibody in its Binding to Amyloid-β Species Associated with Alzheimer’s Disease

Jonathan C. Bradfield
Dr. Bill R. Miller, Faculty Mentor

Alzheimer’s disease (AD) is a neurodegenerative disease that is the 6th leading cause of death in the US. One AD pathology outlines the formation of Amyloid-β (Aβ) protein aggregates in the neural synapse that lead to decreased synapse number and activity which causes memory loss. Aducanumab was recently granted FDA approval for the treatment of AD, though its clinical efficacy has shown mixed results. Aducanumab is a monoclonal antibody that binds to Aβ and clears it from the neural synapse. Aducanumab has also shown a specificity towards aggregate forms of Aβ, and any binding to monomeric species decreases Aducanumab’s efficiency. Molecular Dynamics simulations were run on the Aβ epitope, Aβ monomers, and Aβ pentamers to identify favorable interactions between Aducanumab and these different Aβ species. In these simulations, Aducanumab bound more favorably to less sterically constrained monomeric Aβ species due to favorable interactions outside of the binding pocket.

Keywords: Alzheimer's Disease, Biochemistry, Neuroscience, Immunology, Computational Biophysics, Aducanumab, Amyloid-Beta, Aduhelm

Topic(s):Biochemistry and Molecular Biology

Presentation Type: Oral Presentation

Session: 105-1
Location: MG 2001
Time: 8:30

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