FLI1 and post-traumatic stress disorder: Post-LPS exposure, PBMCs derived from PTSD patients displayed a notable increase in FLI1 expression compared to those from control subjects; however, this increase was significantly suppressed with the knockdown of FLI1 via FLI1 Gapmer (n=3 per group from three independent experiments, Figure 2A; p < 0.05).