Control of Schwann cell myelination [PDF]
F1000 Biology Reports, 2010 Schwann cells ensheath all axons of peripheral nerves. Only around large-diameter axons do they elaborate myelin, forming insulating sheaths that are vital for fast conduction of axon potentials. A series of recent papers has illuminated some of the ways in which the process of myelination is controlled, both by signals from axons and by positive and ...
Rhona Mirsky, Kristjan R. Jessen
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FGF/heparin differentially regulates Schwann cell and olfactory ensheathing cell interactions with astrocytes: a role in astrocytosis [PDF]
, 2007 After injury, the CNS undergoes an astrocyte stress response characterized by reactive astrocytosis/proliferation, boundary formation, and increased glial fibrillary acidic protein (GFAP) and chondroitin sulfate proteoglycan (CSPG) expression. Previously,
Barnett, S.C. +7 more
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Ablation of Dicer from murine Schwann cells increases their proliferation while blocking myelination [PDF]
, 2010 The myelin sheaths that surround the thick axons of the peripheral nervous system are produced by the highly specialized Schwann cells. Differentiation of Schwann cells and myelination occur in discrete steps.
A Schaefer +39 more
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Schwann Cell Myelination [PDF]
Cold Spring Harbor Perspectives in Biology, 2015 Myelinated nerve fibers are essential for the rapid propagation of action potentials by saltatory conduction. They form as the result of reciprocal interactions between axons and Schwann cells. Extrinsic signals from the axon, and the extracellular matrix, drive Schwann cells to adopt a myelinating fate, whereas myelination reorganizes the axon for its
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The Neurobiology of Schwann Cells
Brain Pathology, 1999 This selective review of Schwann cell biology focuses on questions relating to the origins, development and differentiation of Schwann cells and the signals that control these processes. The importance of neuregulins and their receptors in controlling Schwann cell precursor survival and generation of Schwann cells, and the role of these molecules in ...
Kristjan R. Jessen, Rhona Mirsky
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Embryonic Corneal Schwann Cells Express Some Schwann Cell Marker mRNAs, but No Mature Schwann Cell Marker Proteins [PDF]
Investigative Opthalmology & Visual Science, 2009 Embryonic chick nerves encircle the cornea in pericorneal tissue until embryonic day (E)9, then penetrate the anterior corneal stroma, invade the epithelium, and branch over the corneal surface through E20. Adult corneal nerves, cut during transplantation or LASIK, never fully regenerate.
Maya Pettit-Scott +3 more
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Myelination: all about Rac n roll. [PDF]
, 2007 During the development of the peripheral nervous system, Schwann cells select individual axons from a nerve bundle and establish a one-to-one relationship through a process termed radial sorting. Recent findings identify the Rho family GTPase Rac1 as the
Chan, Jonah
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c-Jun reprograms Schwann cells of injured nerves to generate a repair cell essential for regeneration. [PDF]
, 2012 The radical response of peripheral nerves to injury (Wallerian degeneration) is the cornerstone of nerve repair. We show that activation of the transcription factor c-Jun in Schwann cells is a global regulator of Wallerian degeneration.
Arthur-Farraj, PJ +16 more
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Neural crest stem cells undergo multilineage differentiation in developing peripheral nerves to generate endoneurial fibroblasts in addition to Schwann cells [PDF]
, 2004 Neural crest stem cells (NCSCs) persist in peripheral nerves throughout late gestation but their function is unknown. Current models of nerve development only consider the generation of Schwann cells from neural crest, but the presence of NCSCs raises ...
Anderson, David J. +9 more
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A RET-ER81-NRG1 Signaling Pathway Drives the Development of Pacinian Corpuscles [PDF]
, 2016 Axon-Schwann cell interactions are crucial for the development, function, and repair of the peripheral nervous system, but mechanisms underlying communication between axons and nonmyelinating Schwann cells are unclear.
Abe, Shin-Ichi +7 more
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