Abstract
Mutations in the DJ-1 gene have been identified to cause Parkinson's disease. In humans, nonmutated DJ-1 is expressed in specific brain areas but seems to be expressed by astrocytes rather than by neurons. In contrast, DJ-1 mRNA is mainly found in neurons in the mouse brain. We have investigated the distribution of DJ-1 protein in the mouse brain and found that DJ-1 protein is predominantly expressed by neurons but can also be detected in astrocytes. Consistent with a global role of DJ-1 in the brain, we found immunoreactivity, for example, in cortical areas, hippocampus, basolateral amygdala, the reticular nucleus of the thalamus, zona incerta, and locus coeruleus. Within the substantia nigra, however, DJ-1 is localized in both neuronal and nonneuronal cells, suggesting a distinct role in this area.
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Abbreviations
- BLA:
-
basolateral nucleus of the amygdala
- CA1, CA2, CA3:
-
hippocampal fields CA1–CA3
- CPU:
-
caudate-putamen
- DG:
-
dentate gyrus
- LA:
-
lateral nucleus of the amygdala
- LC:
-
locus coeruleus
- LS:
-
lateral septum
- M:
-
motor cortex
- PIR:
-
piriform cortex
- PIR:
-
homeostatic model assessment
- RT:
-
reticular nucleus of the thalamus
- SNpc:
-
substantia nigra pars compacta
- SOM:
-
somatosensory cortex
- ZI:
-
zona incerta
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Acknowledgements
N.K. was supported by a fellowship from the Deutscher Akademischer Austauschdienst (German Academic Exchange Service). We wish to thank the Deutsche Forschungsgemeinschaft (SFB 636/A5) for financial support.
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Kotaria, N., Hinz, U., Zechel, S. et al. Localization of DJ-1 protein in the murine brain. Cell Tissue Res 322, 503–507 (2005). https://doi.org/10.1007/s00441-005-0023-1
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DOI: https://doi.org/10.1007/s00441-005-0023-1