Analysis of the Effect of Aggregated β-Amyloid on Cellular Signaling Pathways Critical for Memory in Alzheimer’s Disease
Here we evaluate the ability to detect changes in phosphorylation levels of ERK and CREB following treatment with Aβ using the SH-SY5Y neuroblastoma cell line. Aβ was oligomerized using a method previously described in the literature (FA et al. 2010). A two-step HTRFR assay process was incorporated such that cell plating and treatment are carried out in a 96-well clear-bottom imaging plate. Following lysis, aliquots were transferred to separate LV384-well assay plates to perform the phospho and total ERK and CREB assays. A neutralizing antibody was also tested for its capacity to counteract the inhibitory effects of Aβ. Aβ binding and antibody neutralization were detected via immunocytochemisty and microscopic analysis. All microplate reading and cellular imaging steps were performed using a novel cell imaging multi-mode reader. The combination provides an efficient, robust method for testing of new molecules to combat the degenerative effects of the disease.