Research Article

Mesenchymal Stem Cells Attenuate Radiation-Induced Brain Injury by Inhibiting Microglia Pyroptosis

Figure 3

Radiation induced caspase-1-dependent pyroptosis in microglia and increased IL-18 and IL-1β production. (a) 10 Gy radiation promoted the expression of caspase-1 as well as proinflammation cytokine including IL-18 and IL-1β in BV-2 microglia cells at the transcriptional level. (b) Data from laser scanning confocal microscopy demonstrated caspase-1 activation in BV-2 microglia cells exposed to radiation. (c) Increased IL-18 and IL-1β experienced upregulating after radiation. (d) LDH production increased after radiation exposure in BV-2 microglia cells while experiencing decrease after the caspase-1 inhibitor Ac-YVAD was treated. Bars represent mean ± SEM. 7. Scale bar indicates 10 μm. and versus the control group (con); versus the Rad group.
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