To date, only two studies, from the same group, have reported a connection between the Akt/mTOR signaling and the expression of sialyltransferases; mTOR activation is positively correlated with ST3GAL6 expression in hepatoma carcinoma cells [66], but is negatively correlated with ST8SIA4 expression in follicular thyroid cancer cells [67]. The gene discussed is MTOR; the disease is thyroid gland follicular carcinoma.