The neuregulin receptor, ErbB4, is not required for normal development and adult maintenance of the substantia nigra pars compacta

Sandrine Thuret, Kambiz N. Alavian, Martin Gassmann, Kevin C K Lloyd, Simone M. Smits, Marten P. Smidt, Rüdiger Klein, Richard H. Dyck, Horst H. Simon

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

Degeneration of dopaminergic neurons in the substantia nigra is associated with one of the most prominent human neurological disorders, Parkinson's disease. It is therefore of high interest to identify molecules with trophic effects on this neuronal population. We show here that the neuregulin receptor ErbB4 is differentially expressed in mesencephalic dopaminergic neurons, found in the substantia nigra and in a subregion of the ventral tegmentum but not in the retrorubral field. Early developmental onset and continued expression of ErbB4 into the adult and the presence of two high affinity ligands, neuregulin-1 and betacellulin, in the basal ganglia, suggested that these molecules might participate in the differentiation and/or maintenance of the nigrostriatal system. In order to address this hypothesis, we used a loxP flanked ErbB4 allele in combination with a nestin-Cre transgene and generated brain-specific ErbB4 null mice. These mutant animals survived into adulthood. The distribution of dopaminergic cell bodies in the midbrain, the expression of numerous genes specific to mesencephalic dopaminergic neurons, and the axonal projection to the basal ganglia all appeared normal. Finally, an assessment of their motor function revealed no behavioral deficits. The apparent lack of any mutant phenotype suggests the presence of a strong compensatory mechanism.

Original languageEnglish (US)
Pages (from-to)1302-1311
Number of pages10
JournalJournal of Neurochemistry
Volume91
Issue number6
DOIs
StatePublished - Dec 2004

Fingerprint

Neuregulins
Dopaminergic Neurons
Neurons
Maintenance
Substantia Nigra
Basal Ganglia
Neuregulin-1
Nestin
Molecules
Mesencephalon
Nervous System Diseases
Transgenes
Parkinson Disease
Brain
Animals
Genes
Alleles
Cells
Ligands
Phenotype

Keywords

  • Caudate putamen
  • Conditional knock-out
  • Locomotor
  • Midbrain
  • Neurodegenerative disease
  • Receptor tyrosine kinase

ASJC Scopus subject areas

  • Biochemistry
  • Cellular and Molecular Neuroscience

Cite this

The neuregulin receptor, ErbB4, is not required for normal development and adult maintenance of the substantia nigra pars compacta. / Thuret, Sandrine; Alavian, Kambiz N.; Gassmann, Martin; Lloyd, Kevin C K; Smits, Simone M.; Smidt, Marten P.; Klein, Rüdiger; Dyck, Richard H.; Simon, Horst H.

In: Journal of Neurochemistry, Vol. 91, No. 6, 12.2004, p. 1302-1311.

Research output: Contribution to journalArticle

Thuret, Sandrine ; Alavian, Kambiz N. ; Gassmann, Martin ; Lloyd, Kevin C K ; Smits, Simone M. ; Smidt, Marten P. ; Klein, Rüdiger ; Dyck, Richard H. ; Simon, Horst H. / The neuregulin receptor, ErbB4, is not required for normal development and adult maintenance of the substantia nigra pars compacta. In: Journal of Neurochemistry. 2004 ; Vol. 91, No. 6. pp. 1302-1311.
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