Impaired motor coordination in Pitx3 overexpression mice

Hongwon Kim, Xiaoyuan Quan, Yeju Seong, Jongpil Kim

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Midbrain dopaminergic (DA) neurons are involved in the regulation of voluntary movement and in emotion-related behaviors and are affected in Parkinson's disease (PD) the homeodomain transcription factor Pitx3, which is uniquely expressed in midbrain DA neurons, plays a critical role in the development, function and maintenance of midbrain DA neurons. Pitx3 deficiency results in selective deficits of midbrain DA neurons in the substantia nigra pars compacta (SNc), reminiscent of the specific DA neuronal loss observed in PD. In this study, we found that selective overexpression of Pitx3 in intact midbrain DA neurons significantly affects the function of midbrain DA neurons. We observed changes in DA levels and gene expressions in mice overexpressing Pitx3. Furthermore, motor coordination and locomotion activities are significantly affected in mice overexpressing Pitx3, suggesting that the expression level of Pitx3 plays an important role in the function of midbrain DA neuron in vivo.

Original languageEnglish
Pages (from-to)1211-1218
Number of pages8
JournalBiochemical and Biophysical Research Communications
Volume446
Issue number4
DOIs
StatePublished - 18 Apr 2014

Keywords

  • Midbrain DA neurons
  • Parkinson's disease
  • Pitx3

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