miRNA <i>in situ</i> hybridization in prostate cancer.

<p><b>a)</b> miRNA-34a expression in malignant, adenocarcinoma cells (M), with no staining in benign epithelial cells (B) of dilated glands; <b>b)</b> miRNA125b expression in stromal fibroblastic cells (St); <b>c)</b> miRNA-126 expression in endothelial cells of vessels (v); <b>d)</b> miRNA-143 expression in stromal smooth muscle cells (St); <b>e)</b> Serial section with <b>d</b>, showing miRNA-145 expression in stromal cells (St, myofibroblastic/smooth muscle cells); <b>f)</b> Serial section with <b>a</b>, showing no staining obtained with the scramble probe. Bars: a, c-f = 80μm, b = 40μm.