体外研究: |
TMPA (5, 10, 20, 40, 80 µM; 6 h or 10 µM; 0.5, 1, 3, 6, 12, 24, 36, 48 h) antagonizes the Nur77-LKB1 interaction in a dose- and time-dependent manner in hepatic LO2 cells. TMPA (10 µM; 6 h) enhances the LKB1-AMPKα interaction but decreases the LKB1-Nur77 interaction under physio logical conditions in Lo2 cells. TMPA binds directly to LBD in specific conformation. TMPA (10, 20 µM; 6 h) induces LKB1 nuclear export to activate AMPKα in Lo2 cells. TMPA (10, 50, 100 µM; 4 h) impairs human T-cell RICD (restimulation-induced cell death). Cell Viability Assay Cell Line: T cells Concentration: 10, 50, 100 µM Incubation Time: 4 h Result: Significantly reduced T-cell RICD in a dose-dependent manner. Western Blot Analysis Cell Line: Hepatic LO2 cells Concentration: 10, 20 µM Incubation Time: 6 h Result: Led to an increase of LKB1 phosphorylation at Ser428. Western Blot Analysis Cell Line: Hepatic LO2 cells Concentration: 5, 10, 20, 40, 80 µM Incubation Time: 6 h Result: Increased the amount of phosphorylation of AmPKα in a dose- and time-dependent manner.Rescued the LKB1-AmPKα interaction by reducing the nur77-lKb1 interaction when at 10 µM. |