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Updated: May 31, 2026

Imaging the Intracellular Trafficking of APP with Photoactivatable GFP
Published on: October 17, 2015
Selective interaction of amyloid precursor protein with different isoforms of neural cell adhesion molecule
1Key Laboratory of Developmental Genes and Human Disease, Ministry of Education, Institute of Life Science, Southeast University, Nanjing, 210009, China.
Abstract:
Compare to the thoroughly studied beta-amyloid, the physiological function of amyloid precursor protein (APP) is not well understood. We now had identified neural cell adhesion molecule (NCAM)-140 as a potential interaction partner of APP. Our data indicated that NCAM-140, but not NCAM-180, binds to the conserved central extracellular domain of APP. We also found that the phosphorylation levels of ERK1 and ERK2 were increased when cells were co-transfected with NCAM-140 and APP indicate that the interaction between NCAM-140 and APP may involve the MAPK pathway. These findings demonstrated that NCAM-140 interacts with APP, potentially playing a role in neurite outgrowth and neural development.
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