ST8SIA4 and thyroid cancer, nonmedullary, 2: To investigate whether the effects of miR-146a/b in FTC are mediated by ST8SIA4, we rescued ST8SIA4 expression in the miR-146a/b-overexpressing FTC-133 cells and suppressed ST8SIA4 expression in the miR-146a/b-inhibited FTC-238 cells.