Sall1 Regulates Mitral Cell Development and Olfactory Nerve Extension in the Developing Olfactory Bulb
Identifieur interne : 000488 ( Main/Exploration ); précédent : 000487; suivant : 000489Sall1 Regulates Mitral Cell Development and Olfactory Nerve Extension in the Developing Olfactory Bulb
Auteurs : Susan J. Harrison [États-Unis] ; Ryuichi Nishinakamura [Japon] ; A. Paula Monaghan [États-Unis]Source :
- Cerebral Cortex [ 1047-3211 ] ; 2007-11-17.
Abstract
Sall1 is a zinc finger containing transcription factor that is highly expressed during mammalian embryogenesis. In humans, the developmental disorder Townes Brocks Syndrome is associated with mutations in the SALL1 gene. Sall1-deficient animals die at birth due to kidney deficits; however, its function in the nervous system has not been characterized. We examined the role of Sall1 in the developing olfactory system. We demonstrate that Sall1 is expressed by cells in the olfactory epithelium and olfactory bulb (OB). Sall1-deficient OBs are reduced in size and exhibit alterations in neurogenesis and mitral cell production. In addition, the olfactory nerve failed to extend past the ventralmedial region of the OB in Sall1-deficient animals. We observed intrinsic patterns of neurogenesis during olfactory development in control animals. In Sall1-mutant animals, these patterns of neurogenesis were disrupted. These findings suggest a role for Sall1 in regulating neuronal differentiation and maturation in developing neural structures.
Url:
DOI: 10.1093/cercor/bhm191
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In humans, the developmental disorder Townes Brocks Syndrome is associated with mutations in the SALL1 gene. Sall1-deficient animals die at birth due to kidney deficits; however, its function in the nervous system has not been characterized. We examined the role of Sall1 in the developing olfactory system. We demonstrate that Sall1 is expressed by cells in the olfactory epithelium and olfactory bulb (OB). Sall1-deficient OBs are reduced in size and exhibit alterations in neurogenesis and mitral cell production. In addition, the olfactory nerve failed to extend past the ventralmedial region of the OB in Sall1-deficient animals. We observed intrinsic patterns of neurogenesis during olfactory development in control animals. In Sall1-mutant animals, these patterns of neurogenesis were disrupted. These findings suggest a role for Sall1 in regulating neuronal differentiation and maturation in developing neural structures.</div></front></TEI><affiliations><list><country><li>Japon</li><li>États-Unis</li></country><region><li>Pennsylvanie</li></region><settlement><li>Pittsburgh</li></settlement><orgName><li>Université de Pittsburgh</li></orgName></list><tree><country name="États-Unis"><region name="Pennsylvanie"><name sortKey="Harrison, Susan J" sort="Harrison, Susan J" uniqKey="Harrison S" first="Susan J." last="Harrison">Susan J. Harrison</name></region><name sortKey="Harrison, Susan J" sort="Harrison, Susan J" uniqKey="Harrison S" first="Susan J." last="Harrison">Susan J. Harrison</name><name sortKey="Monaghan, A Paula" sort="Monaghan, A Paula" uniqKey="Monaghan A" first="A. Paula" last="Monaghan">A. Paula Monaghan</name><name sortKey="Monaghan, A Paula" sort="Monaghan, A Paula" uniqKey="Monaghan A" first="A. Paula" last="Monaghan">A. Paula Monaghan</name><name sortKey="Monaghan, A Paula" sort="Monaghan, A Paula" uniqKey="Monaghan A" first="A. Paula" last="Monaghan">A. Paula Monaghan</name><name sortKey="Monaghan, A Paula" sort="Monaghan, A Paula" uniqKey="Monaghan A" first="A. Paula" last="Monaghan">A. Paula Monaghan</name></country><country name="Japon"><noRegion><name sortKey="Nishinakamura, Ryuichi" sort="Nishinakamura, Ryuichi" uniqKey="Nishinakamura R" first="Ryuichi" last="Nishinakamura">Ryuichi Nishinakamura</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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