Localization of phosphotyrosine adaptor protein ShcD/SHC4 in the adult rat central nervous system
Abstract Background Mammalian Shc (Src homology and collagen) proteins comprise a family of four phosphotyrosine adaptor molecules which exhibit varied spatiotemporal expression and signaling functions. ShcD is the most recently discovered homologue and it is highly expressed in the developing centr...
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doaj-e9922fbbc3c84474b782f040d436f16e2020-12-13T12:41:02ZengBMCBMC Neuroscience1471-22022019-12-0120111210.1186/s12868-019-0541-5Localization of phosphotyrosine adaptor protein ShcD/SHC4 in the adult rat central nervous systemHannah N. Robeson0Hayley R. Lau1Laura A. New2Jasmin Lalonde3John N. Armstrong4Nina Jones5Department of Molecular and Cellular Biology, University of GuelphDepartment of Molecular and Cellular Biology, University of GuelphDepartment of Molecular and Cellular Biology, University of GuelphDepartment of Molecular and Cellular Biology, University of GuelphDepartment of Molecular and Cellular Biology, University of GuelphDepartment of Molecular and Cellular Biology, University of GuelphAbstract Background Mammalian Shc (Src homology and collagen) proteins comprise a family of four phosphotyrosine adaptor molecules which exhibit varied spatiotemporal expression and signaling functions. ShcD is the most recently discovered homologue and it is highly expressed in the developing central nervous system (CNS) and adult brain. Presently however, its localization within specific cell types of mature neural structures has yet to be characterized. Results In the current study, we examine the expression profile of ShcD in the adult rat CNS using immunohistochemistry, and compare with those of the neuronally enriched ShcB and ShcC proteins. ShcD shows relatively widespread distribution in the adult brain and spinal cord, with prominent levels of staining throughout the olfactory bulb, as well as in sub-structures of the cerebellum and hippocampus, including the subgranular zone. Co-localization studies confirm the expression of ShcD in mature neurons and progenitor cells. ShcD immunoreactivity is primarily localized to axons and somata, consistent with the function of ShcD as a cytoplasmic adaptor. Regional differences in expression are observed among neural Shc proteins, with ShcC predominating in the hippocampus, cerebellum, and some fiber tracts. Interestingly, ShcD is uniquely expressed in the olfactory nerve layer and in glomeruli of the main olfactory bulb. Conclusions Together our findings suggest that ShcD may provide a distinct signaling contribution within the olfactory system, and that overlapping expression of ShcD with other Shc proteins may allow compensatory functions in the brain.https://doi.org/10.1186/s12868-019-0541-5ShcDShc4ShcBShcCNeural progenitor cellsOlfactory bulb |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Hannah N. Robeson Hayley R. Lau Laura A. New Jasmin Lalonde John N. Armstrong Nina Jones |
spellingShingle |
Hannah N. Robeson Hayley R. Lau Laura A. New Jasmin Lalonde John N. Armstrong Nina Jones Localization of phosphotyrosine adaptor protein ShcD/SHC4 in the adult rat central nervous system BMC Neuroscience ShcD Shc4 ShcB ShcC Neural progenitor cells Olfactory bulb |
author_facet |
Hannah N. Robeson Hayley R. Lau Laura A. New Jasmin Lalonde John N. Armstrong Nina Jones |
author_sort |
Hannah N. Robeson |
title |
Localization of phosphotyrosine adaptor protein ShcD/SHC4 in the adult rat central nervous system |
title_short |
Localization of phosphotyrosine adaptor protein ShcD/SHC4 in the adult rat central nervous system |
title_full |
Localization of phosphotyrosine adaptor protein ShcD/SHC4 in the adult rat central nervous system |
title_fullStr |
Localization of phosphotyrosine adaptor protein ShcD/SHC4 in the adult rat central nervous system |
title_full_unstemmed |
Localization of phosphotyrosine adaptor protein ShcD/SHC4 in the adult rat central nervous system |
title_sort |
localization of phosphotyrosine adaptor protein shcd/shc4 in the adult rat central nervous system |
publisher |
BMC |
series |
BMC Neuroscience |
issn |
1471-2202 |
publishDate |
2019-12-01 |
description |
Abstract Background Mammalian Shc (Src homology and collagen) proteins comprise a family of four phosphotyrosine adaptor molecules which exhibit varied spatiotemporal expression and signaling functions. ShcD is the most recently discovered homologue and it is highly expressed in the developing central nervous system (CNS) and adult brain. Presently however, its localization within specific cell types of mature neural structures has yet to be characterized. Results In the current study, we examine the expression profile of ShcD in the adult rat CNS using immunohistochemistry, and compare with those of the neuronally enriched ShcB and ShcC proteins. ShcD shows relatively widespread distribution in the adult brain and spinal cord, with prominent levels of staining throughout the olfactory bulb, as well as in sub-structures of the cerebellum and hippocampus, including the subgranular zone. Co-localization studies confirm the expression of ShcD in mature neurons and progenitor cells. ShcD immunoreactivity is primarily localized to axons and somata, consistent with the function of ShcD as a cytoplasmic adaptor. Regional differences in expression are observed among neural Shc proteins, with ShcC predominating in the hippocampus, cerebellum, and some fiber tracts. Interestingly, ShcD is uniquely expressed in the olfactory nerve layer and in glomeruli of the main olfactory bulb. Conclusions Together our findings suggest that ShcD may provide a distinct signaling contribution within the olfactory system, and that overlapping expression of ShcD with other Shc proteins may allow compensatory functions in the brain. |
topic |
ShcD Shc4 ShcB ShcC Neural progenitor cells Olfactory bulb |
url |
https://doi.org/10.1186/s12868-019-0541-5 |
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