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International Conference on Brain Disorders and Therapeutics

London, UK

Wail M Hassan

Wail M Hassan

University of Wisconsin-Milwaukee, USA

Title: Gene expression changes triggered by amyloid beta toxicity
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Biography: Wail M Hassan


Multiple genes have been linked to Alzheimer’s disease (AD) implicating multiple metabolic pathways in its pathogenesis. It is not clear, however which of these genes are involved in general stress response and which are linked to AD-specific pathologies. To make an attempt to answer this question, we investigated changes in gene expression induced by human β-amyloid peptide (Aβ) in a transgenic C. elegans Alzheimer’s disease model. Aβ-induced gene expression changes were compared to those caused by a synthetic aggregating protein to identify Aβ-specific genes. Among the Aβ-specific genes identified in this study were genes involved in aging, lifespan regulation, proteasome structure and function and mitochondrial function. Interestingly, a significant overlap between Aβ- and Cry5B (a bacterial pore-forming toxin) induced gene expression alterations was observed. Further testing suggested the involvement of membrane damage in Aβ pathogenesis. In this study, we segregated Aβ-specific gene expression changes from general stress response in a simple metazoan animal and provide evidence implicating membrane damage in Aβ toxicity. We hope this work will eventually help identify novel therapeutic targets and further our understanding of AD pathogenesis.

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