体外研究
Buformin (0-10 mM; 5 days) inhibits SKBR3 and BT474 cells growth as a concentration-dependent manner, exhibits IC
50
values of 246.7 μM and 98.6 μM for erbB-2-overexpressing SKBR3 and BT474 cells, respectively.Buformin (0-3 mM; 48 hours) increases the percentage of cells in G0/G1 phase and reduced the percentage of cells in S phase, especially in the SKBR3 cells.Buformin (0-3 mM; 24 hours) suppresses RTK activation, including erbB-2 and IGF1R signaling downstream, and Akt activation/phosphorylation is inhibited in both SKBR3 and BT474 cells.
Cell Viability Assay
Cell Line:
ErbB-2-overexpressing SKBR3 and BT474 cells
Concentration:
0 μM, 1 μM, 3 μM, 10 μM, 30 μM, 100 μM, 300 μM, 1, 3, or 10 mM
Incubation Time:
5 days
Result:
Reduced cell viability in erbB-2-overexpressing breast cells.
Cell Cycle Analysis
Cell Line:
ErbB-2-overexpressing SKBR3 and BT474 cells
Concentration:
0.5 mM; 1 mM; 3 mM
Incubation Time:
48 hours
Result:
Increased cells arresting in G0/G1 phase.
Western Blot Analysis
Cell Line:
ErbB-2-overexpressing SKBR3 and BT474 cells
Concentration:
0 mM, 0.1 mM, 0.3 mM, 1 mM, or 3 mM
Incubation Time:
24 hours
Result:
Decreased p-AMPK, p-p706S, p-ERK1/2 expression in a concentration-dependent manner.