In addition, Zhang et al. [80] demonstrated that the knockdown of PCAT6 resulted in the inhibition of the proliferation, migration, and invasion of bladder cancer cell lines T24T and EJ by targeting the miR-143–3p/protein disulfide isomerase family 6 (PDIA6) axis, where PDIA6 was previously reported to be involved in the pathogenesis of human cancers and the sensitivity of cancer cells to chemotherapeutic drugs [81,82]. Here, PDIA6 is linked to cancer.