Figure 7. miR-21 regulates phosphorylation of tuberin and activation of mTOR in renal cancer cells.
ACHN cells were transfected with miR-21 Sponge or vector. The cell lysates were immunoblotted with phospho-tuberin (Thr-1462), tuberin (panel A), phospho-S6 kinase (Thr-389), S6 kinase (panel B), phospho-mTOR (Ser-2448) and mTOR (panel C). miR-21 uses Rheb activation for TORC1 activity. ACHN cells were cotransfected with miR-21 Sponge and CA Rheb plasmid. The cell lysates were immunoblotted with phospho-S6 kinase (Thr-389), S6 kinase (panel D), phospho-mTOR (Ser-2448) and mTOR (panel E).