Intrathecal administration of JWH015 ameliorates impaired autophagy flux in bone cancer pain. (A) Representative western blotting images of LC3B and p62 in the spinal cord 12 h after treatment with JWH015. (B) Ratio of LC3B-II/LC3B-I and (C) quantification of p62 protein expression levels. #P<0.05 vs. Sham + vehicle group; *P<0.05 vs. Tumor + vehicle group. (D) Representative western blots of LC3B and p62 protein expression in the spinal cord at 0, 4, 8, 12, 24, 48 and 72 h after JWH015 (2 µg) injection. (E) Ratio of LC3B-II/LC3B-I and (F) quantification of p62. *P<0.05 vs. 0 h. (G) Representative blots of LC3B and p62 in the spinal cord with treatment of vehicle, Baf-A1 (10 nM), JWH015 (2 µg), and Baf-A1 (10 nM) + JWH015 (2 µg) in BCP mice on day 14. (H) Ratio of LC3B-II/LC3B-I. (I) Quantification of p62. *P<0.05 vs. tumor + vehicle group. For all western blots, β-actin was used as a loading control; data are expressed as the mean ± SD n=3 per group. LC3B, microtubule-associated protein 1 light chain 3β.