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All vertebrate peripheral nerves connect the central nervous system (CNS) with targets in the periphery and are composed of axons, layers of ensheathing glia and connective tissue. Although the structure of these conduits is well established, very little is known about the origin and developmental roles of some of their elements. One understudied component, the perineurium, ensheaths nerve fascicles and is a component of the blood-nerve-barrier. In zebrafish, the motor nerve perineurium is composed of CNS-derived nkx2.2a(+) perineurial glia, which establish the motor exit point (MEP) during development. To determine if mouse perineurial cells also originate within the CNS and perform a similar function, we created a Nkx2.2:EGFP transgenic reporter line.
Pubmed ID: 24979729
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Gene expression data and maps of mouse central nervous system. Gene expression atlas of developing adult central nervous system in mouse, using in situ hybridization and transgenic mouse techniques. Collection of pictorial gene expression maps of brain and spinal cord of mouse. Provides tools to catalog, map, and electrophysiologically record individual cells. Application of Cre recombinase technologies allows for cell-specific gene manipulation. Transgenic mice created by this project are available to scientific community.
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