circDDX17 regulates the expression of LHPP through sponging miR-346. (a) Relative LHPP mRNA expression in 22Rv1 and PC-3 cell lines transfected with pPG-miR-NC, pPG-anti-miR-346, or pPG-miR-346 was detected by qPCR. (b) Relative LHPP protein expression in 22Rv1 and PC-3 cell lines transfected with pPG-miR-NC, pPG-anti-miR-346, or pPG-miR-346 was detected by Western blotting. (c) Relative LHPP mRNA expression in 22Rv1 and PC-3 cell lines transfected with si-NC, si-circDDX17, or si-circDDX17+pPG-anti-miR-346 was determined by qPCR. (d) Relative LHPP protein expression in 22Rv1 and PC-3 cell lines transfected with si-NC, si-circDDX17, or si-circDDX17+pPG-anti-miR-346 was determined by Western blotting. (e) Relative LHPP mRNA expression in 22Rv1 and PC-3 cell lines transfected with pcDNA-NC, pcNDA-circDDX17, or pcNDA-circDDX17+pPG-miR-346 was determined by qPCR. (f) Relative LHPP protein expression in 22Rv1 and PC-3 cell lines transfected with pcDNA-NC, pcNDA-circDDX17, or pcNDA-circDDX17+pPG-miR-346 was determined by Western blotting. ∗p < 0.05, ∗∗p < 0.01, and ∗∗∗p < 0.001.