Fig. 1

Identification and expression analysis of circRNA PSMA4. (A) Schematic diagram of circRNA PSMA4 structure; (B) qPCR analysis of circPSMA4 and PSMA4 mRNA after RNase R treatment; (C) Degradation curves of circPSMA4 and PSMA4 mRNA post-actinomycin D treatment; (D) Expression levels of circPSMA4 and PSMA4 mRNA in the nucleus and cytoplasm; (E) Expression levels of circPSMA4 in different bladder cancer cell lines. N = 3; **P < 0.01.