PLAUR and prostate neoplasm: Co-expression studies of miRs, and their target proteins, by tissue microarrays have shown that in primary prostate tumors miR-143 is localised in stromal cells and uPAR is mainly found in tumor cells, whereas metastatic tissues exhibit miR-143/uPAR co-staining in the cell cytoplasm (Eckstein et al., 2019).