Figure 7.
Mediation by the intracellular signaling molecule, mTOR, of nociceptive effects of AXL. (a) The protein amount of p-mTOR and total mTOR increased in the ipsilateral L4/L5 DRGs on days 7 and 14 after CCD surgery. N = 3 rats/time point. One-way ANOVA (expression vs. time points) followed by post hoc Tukey test, *P < 0.05, **P < 0.01 versus day 0 (sham group). Repeatedly intrathecal injection of (b) TP0903 (1 μg) or (c) AXL siRNA (Si, 5 μM in 10 μL vehicle solution) reduced mTOR expression in compressed DRGs of CCD rats. N = 3 rats/time point. One-way ANOVA (effect vs. the treated groups) followed by post hoc Tukey tests, *P < 0.05, **P < 0.01, versus the Sham + Veh group; ##P < 0.01 versus the CCD + Veh group. DRG: dorsal root ganglion; CCD: chronic compression of DRG; mTOR: mammalian target of rapamycin.