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Metastasis-associated S100A4 (Mts1) protein is expressed in subpopulations of sensory and autonomic neurons and in Schwann cells of the adult rat.
Uppsala University, Medicinska vetenskapsområdet, Faculty of Medicine, Department of Neuroscience.
Uppsala University, Medicinska vetenskapsområdet, Faculty of Medicine, Department of Neuroscience.
Uppsala University, Medicinska vetenskapsområdet, Faculty of Medicine, Department of Neuroscience.
Uppsala University, Medicinska vetenskapsområdet, Faculty of Medicine, Department of Neuroscience.
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2004 (English)In: J Comp Neurol., Vol. 473, no 2, 233-43 p.Article in journal (Other (popular scientific, debate etc.)) Published
Abstract [en]

S100A4 (Mts1) is a member of a family of calcium-binding proteins of the EF-hand type, which are widely expressed in the nervous system, where they appear to be involved in the regulation of neuron survival, plasticity, and response to injury or disease. S100A4 has previously been demonstrated in astrocytes of the white matter and rostral migratory stream of the adult rat. After injury, S100A4 is markedly up-regulated in affected central nervous white matter areas as well as in the periventricular area and rostral migratory stream. Here, we show that S100A4 is expressed in a subpopulation of dorsal root, trigeminal, geniculate, and nodose ganglion cells; in a subpopulation of postganglionic sympathetic and parasympathetic neurons; in chromaffin cells of the adrenal medulla; and in satellite and Schwann cells. In dorsal root ganglia, S100A4-positive cells appear to constitute a subpopulation of small ganglion neurons, a few of which coexpressed calcitonin gene-related peptide (CGRP) and Griffonia simplicifolia agglutinin (GSA) isolectin B4 (B4). S100A4 protein appears to be transported from dorsal root ganglia to the spinal cord, where it is deposited in the tract of Lissauer. After peripheral nerve or dorsal root injury, a few S100A4-positive cells coexpress CGRP, GSA, or galanin. Peripheral nerve or dorsal root injury induces a marked up-regulation of S100A4 expression in satellite cells in the ganglion and in Schwann cells at the injury site and in the distal stump. This pattern of distribution partially overlaps that of the previously studied S100B and S100A6 proteins, indicating a possible functional cooperation between these proteins. The presence of S100A4 in sensory neurons, including their processes in the central nervous system, suggests that S100A4 is involved in propagation of sensory impulses in specific fiber types. J. Comp. Neurol. 473:233-243, 2004. © 2004 Wiley-Liss, Inc.

Place, publisher, year, edition, pages
2004. Vol. 473, no 2, 233-43 p.
Keyword [en]
calcium-binding protein • dorsal root ganglion • autonomic ganglion • adrenal medulla • tract of Lissauer • nerve injury
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Neurology
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URN: urn:nbn:se:uu:diva-15869PubMedID: 15101091OAI: oai:DiVA.org:uu-15869DiVA: diva2:43640
Available from: 2008-03-11 Created: 2008-03-11 Last updated: 2011-01-12

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PubMedhttp://www.ncbi.nlm.nih.gov/pubmed/15101091?ordinalpos=2&itool=EntrezSystem2.PEntrez.Pubmed.Pubmed_ResultsPanel.Pubmed_RVDocSum

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Sandelin, MartinZabihi, ShellerKozlova, Elena

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