TY - JOUR
T1 - Sall3 correlates with the expression of TH in mouse olfactory bulb.
AU - Heng, Xin
AU - Breer, Heinz
AU - Zhang, Xin
AU - Tang, Y.
AU - Li, Jia
AU - Zhang, Sufang
AU - Le, Weidong
N1 - Funding Information:
Acknowledgments This study was supported by research funds from the Nature Science Foundation of China (No. 30730096 and 39070925), from the National Basic Research Program of China (2011CB510003 and 2010CB945200), and a grant awarded by the “Shanghai-Baden-Wüertternberg program” from Shanghai Pujiang Research Program (09PJD014). The authors thank Andrea Bader (Institute of Physiology, University of Hohenheim, Stuttgart, Germany) for her excellent technical support of in situ hybridization experiment.
PY - 2012/2
Y1 - 2012/2
N2 - Sall3 is a member of a gene family with homology to the spalt gene of Drosophila melanogaster, encoding transcription factors, and acts as downstream target of hedgehog. Vertebrate homologues of spalt have been shown to be involved in development of the limbs and nervous system and several organs including the kidney and heart; mutations in the genes are implicated in several human genetic disorders. Recent studies have shown a total loss of olfactory bulb (OB) dopaminergic (DA) neurons in Sall3-null mice. We assume that tyrosine hydroxylase (TH) may be regulated by Sall3 in OB. In this study, we find that Sall3 and TH co-localize in glomerular layer (GL) of OB. Furthermore, we demonstrate a significant induction of the proximal TH promoter transcription activity by Sall3 in dual-luciferase reporter assay and a reduction of TH expression level in Sall3-deficient cell lines. Collectively, these findings support the notion that Sall3 correlates with the expression of TH in mouse OB and may have a role in OB DA neuron development by regulating TH gene expression. The results from this study may advance our understanding of the molecular pathways of OB in the DA neuron development and differentiation.
AB - Sall3 is a member of a gene family with homology to the spalt gene of Drosophila melanogaster, encoding transcription factors, and acts as downstream target of hedgehog. Vertebrate homologues of spalt have been shown to be involved in development of the limbs and nervous system and several organs including the kidney and heart; mutations in the genes are implicated in several human genetic disorders. Recent studies have shown a total loss of olfactory bulb (OB) dopaminergic (DA) neurons in Sall3-null mice. We assume that tyrosine hydroxylase (TH) may be regulated by Sall3 in OB. In this study, we find that Sall3 and TH co-localize in glomerular layer (GL) of OB. Furthermore, we demonstrate a significant induction of the proximal TH promoter transcription activity by Sall3 in dual-luciferase reporter assay and a reduction of TH expression level in Sall3-deficient cell lines. Collectively, these findings support the notion that Sall3 correlates with the expression of TH in mouse OB and may have a role in OB DA neuron development by regulating TH gene expression. The results from this study may advance our understanding of the molecular pathways of OB in the DA neuron development and differentiation.
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U2 - 10.1007/s12031-011-9563-x
DO - 10.1007/s12031-011-9563-x
M3 - Article
C2 - 21701790
AN - SCOPUS:84866170564
SN - 0895-8696
VL - 46
SP - 293
EP - 302
JO - Journal of molecular neuroscience : MN
JF - Journal of molecular neuroscience : MN
IS - 2
ER -