TY - JOUR PY - 2014// TI - Spinal cord injury induces a long-lasting upregulation of interleukin-1β in astrocytes around the central canal JO - Neuroscience A1 - Paniagua-Torija, B. A1 - Arevalo-Martin, A. A1 - Molina-Holgado, E. A1 - Molina-Holgado, F. A1 - Garcia-Ovejero, D. SP - 283 EP - 289 VL - 284C IS - N2 - Under inflammatory conditions, interleukin-1β (IL-1β) modulates neural stem cells at neurogenic niches. Here we show that spinal cord injury in rats increases IL-1β expression in astrocytes located around the spinal cord ependyma, a region that also holds a neurogenic potential. IL-1β increases from day 1 after lesion, reaches maximal levels between days 3 and 7, and declines from 14days to low levels after 28days. At the time of maximal expression, periependymal upregulation of IL-1β extends beyond 5mm from the epicenter of the lesion both rostral and caudally. Since IL-1β controls proliferation and cell fate of neural stem/precursor cells, its modulation in periependymal astrocytes might create an appropriate environment for cell replacement after injury.

Language: en

LA - en SN - 0306-4522 UR - http://dx.doi.org/10.1016/j.neuroscience.2014.10.013 ID - ref1 ER -