Progranulin expression is upregulated after spinal contusion in mice

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ID: 115242
2009
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Abstract
Progranulin (proepithelin) is a pleiotropic growth-factor associated with inflammation and wound repair in peripheral tissues. It also has been implicated in the response to acute traumatic brain injury as well as to chronic neurodegenerative diseases. To determine whether changes in progranulin expression also accompany acute spinal cord injury, C57BL/6 mice were subjected to mid-thoracic (T9 level) contusion spinal cord injury and analyzed by immunohistochemical and biochemical methods. Whereas spinal cord sections prepared from non-injured laminectomy control animals contained low basal levels of progranulin immunoreactivity in gray matter, sections from injured animals contained intense immunoreactivity throughout the injury epicenter that peaked 7–14 days post injury. Progranulin immunoreactivity colocalized with myeloid cell markers CD11b and CD68, indicating that expression increased primarily in activated microglia and macrophages. Immunoblot analysis confirmed that progranulin protein levels rose after injury. On the basis of quantitative polymerase chain reaction analysis, increased protein levels resulted from a tenfold rise in progranulin transcripts. These data demonstrate that progranulin is dramatically induced in myeloid cells after experimental spinal cord injury and is positioned appropriately both spatially and temporally to influence recovery after injury.
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naphade2009actaprogranulin Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Swati B. Naphade;Kristina A. Kigerl;Lyn B. Jakeman;Sandra K. Kostyk;Phillip G. Popovich;Jeff Kuret;Swati B. Naphade;Kristina A. Kigerl;Lyn B. Jakeman;Sandra K. Kostyk;Phillip G. Popovich;Jeff Kuret;
Journal acta neuropathologica
Year 2009
DOI
doi:10.1007/s00401-009-0616-y
URL
https://link.springer.com/article/10.1007/s00401-009-0616-y
Keywords
pathology neurosciences

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