Neuregulin-1 receptor tyrosine kinase ErbB4 is upregulated in midbrain dopaminergic neurons in Parkinson disease
Previously we demonstrated that systemically administered neuregulin-1-beta 1, a nerve growth and differentiation factor, passed the blood-brain barrier and accumulated in brain areas with expression of its receptor ErbB4. In substantia nigra (SN), neuregulin-1-beta 1 phosphorylated ErbB4 and protected dopaminergic neurons in a toxin-based mouse model of Parkinson disease (PD). We studied ErbB4 in