Neuron (Cambridge, Mass.), 2012-08, Vol.75 (4), p.633-647
2012
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- Autor(en) / Beteiligte
- Titel
- c-Jun Reprograms Schwann Cells of Injured Nerves to Generate a Repair Cell Essential for Regeneration
- Ist Teil von
- Neuron (Cambridge, Mass.), 2012-08, Vol.75 (4), p.633-647
- Ort / Verlag
- United States: Elsevier Inc
- Erscheinungsjahr
- 2012
- Quelle
- Free E-Journal (出版社公開部分のみ）
- Beschreibungen/Notizen
- 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. c-Jun governs major aspects of the injury response, determines the expression of trophic factors, adhesion molecules, the formation of regeneration tracks and myelin clearance and controls the distinctive regenerative potential of peripheral nerves. A key function of c-Jun is the activation of a repair program in Schwann cells and the creation of a cell specialized to support regeneration. We show that absence of c-Jun results in the formation of a dysfunctional repair cell, striking failure of functional recovery, and neuronal death. We conclude that a single glial transcription factor is essential for restoration of damaged nerves, acting to control the transdifferentiation of myelin and Remak Schwann cells to dedicated repair cells in damaged tissue. ► Schwann cell c-Jun is a master regulator of the PNS injury response ► c-Jun activates a defined repair program in Schwann cells of damaged nerves ► c-Jun controls transdifferentiation of differentiated Schwann cells to repair cells ► Schwann cell c-Jun is essential for neuronal survival and functional recovery Unlike the central nervous system, injured peripheral nerves regenerate to restore function after injury. Arthur-Farraj et al. show that this repair potential depends on glial (Schwann) cell expression of the transcription factor c-Jun.
- Sprache
- Englisch
- Identifikatoren
- ISSN: 0896-6273, 1097-4199eISSN: 1097-4199DOI: 10.1016/j.neuron.2012.06.021Titel-ID: cdi_swepub_primary_oai_DiVA_org_uu_184478
- Format
- –
- Schlagworte
- Adenoviridae - genetics, Analysis of Variance, Animals, Benzofurans, c-Jun protein, Cell adhesion molecules, Cell Movement - genetics, Disease Models, Animal, Gene expression, Gene Expression Regulation - genetics, Genetic Vectors - physiology, Genotype & phenotype, Grants, Injuries, Leprosy, Macrophages - metabolism, Macrophages - pathology, Macrophages - ultrastructure, Mammals, Medical research, Mice, Mice, Transgenic, Microfluidic Analytical Techniques, Microscopy, Electron, Transmission, Motor Neurons - metabolism, Motor Neurons - pathology, Motor Neurons - ultrastructure, Myelin, Myelin Sheath - pathology, Myelin Sheath - ultrastructure, Nerve Regeneration - physiology, Neurodegeneration, Peripheral nerves, Proto-Oncogene Proteins c-jun - genetics, Proto-Oncogene Proteins c-jun - metabolism, Radicals, Recovery of function, Regeneration, Rodents, Schwann cells, Schwann Cells - metabolism, Schwann Cells - pathology, Schwann Cells - ultrastructure, Sciatic Neuropathy - metabolism, Sciatic Neuropathy - pathology, Sciatic Neuropathy - physiopathology, Sciatic Neuropathy - therapy, Spinal Cord - pathology, Transcription factors, Trophic factors