Expression from a Dlx gene enhancer marks adult mouse cortical GABAergic neurons.
In this paper we analyse the expression pattern of a zebrafish dlx4/6 enhancer/reporter construct in embryonic transgenic mice. We show that the pattern of LacZ/beta-galactosidase in cells that tangentially migrate from the ganglionic eminences to the cerebral cortex is identical to that of various subpallial markers, namely Dlx and GAD genes, that are known to label this population. Because beta-galactosidase activity persists long after expression of the Dlx genes and the transgene becomes undetectable, we were able to analyse the beta-galactosidase-positive cell population of the mature cortex through X-gal staining and immunohistochemistry. We show that this population is largely identical with the adult cortical and hippocampal interneuron population, providing further evidence for their subpallial origin.
Stühmer
Thorsten
T
Nina Ireland Laboratory of Developmental Neurobiology, Department of Psychiatry, LPPI, University of California at San Francisco, 401 Parnassus Avenue, San Francisco, CA 94143-0984, USA.
Puelles
Luis
L
Ekker
Marc
M
Rubenstein
John L R
JL
D000818:Animals; D001923:Brain Chemistry / Q000235:genetics / Q000502:physiology; D064026:Calbindins; D002540:Cerebral Cortex / Q000166:cytology / Q000196:embryology / Q000502:physiology*; D004396:Coloring Agents; D005786:Gene Expression Regulation / Q000502:physiology; D017930:Genes, Reporter / Q000235:genetics*; D017403:In Situ Hybridization; D007395:Interneurons / Q000378:metabolism / Q000502:physiology; D007763:Lac Operon / Q000235:genetics; D051379:Mice; D008810:Mice, Inbred C57BL; D008822:Mice, Transgenic; D012333:RNA, Messenger / Q000096:biosynthesis; D064030:S100 Calcium Binding Protein G / Q000378:metabolism; D013687:Telencephalon / Q000166:cytology / Q000196:embryology / Q000502:physiology; D015027:Zebrafish; D001616:beta-Galactosidase / Q000096:biosynthesis; D005680:gamma-Aminobutyric Acid / Q000502:physiology*
D064026:Calbindins; D004396:Coloring Agents; D012333:RNA, Messenger; D064030:S100 Calcium Binding Protein G; D005680:gamma-Aminobutyric Acid; D001616:beta-Galactosidase