Anat Cell Biol.  2011 Jun;44(2):116-127. 10.5115/acb.2011.44.2.116.

Expression of ErbB4 in the neurons of Alzheimer's disease brain and APP/PS1 mice, a model of Alzheimer's disease

Affiliations
  • 1Department of Anatomy and Neuroscience, College of Medicine, Eulji University, Daejeon, Korea. tkbaik@eulji.ac.kr

Abstract

Neuregulin-1 (NRG1) plays important roles in the development and plasticity of the brain, and has also been reported to exhibit potent neuroprotective properties. Although ErbB4, a key NRG1 receptor, is expressed in multiple regions in the adult animal brain, little is known about its role in Alzheimer's disease (AD). AD is characterized by progressive impairment of cognition and behavioral disturbance that strongly correlate with degeneration and death of neurons in the cerebral cortex and limbic brain areas, such as the hippocampus and the amygdala. Here, we show that the ErbB4 and phospho-ErbB4 immunoreactivities were higher intensity in the neurons of the CA1-2 transitional field of AD brains as compared to age-matched controls. Also, ErbB4 expression was increased in the neurons of the cortico medial nucleus amygdala, human basal forebrain and superior frontal gyrus of AD brains. In cerebral cortex and hippocampus of amyloid precursor protein/presenilin 1 double transgenic mice, ErbB4 immunoreactivity significantly increased in comparison to age-matched wild type control. These results suggest that up-regulating of ErbB4 immunoreactivity may involve in the progression of pathology of AD.

Keyword

Alzheimer disease; ErbB4 receptor; Limbic structures; Neurodegeneration

MeSH Terms

Adult
Alzheimer Disease
Amygdala
Amyloid
Animals
Brain
Cerebral Cortex
Cognition
Hippocampus
Humans
Mice
Mice, Transgenic
Neuregulin-1
Neurons
Plastics
Prosencephalon
Amyloid
Neuregulin-1
Plastics
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