Figure 3.
Inhibiting the MEK1/2-ERK pathway but not the NFκB pathway alters the mechanical properties of LNCaP cells. Variation in (A) shear modulus or (B) viscosity of shRb and shSCX LNCaP cells after exposure to 72 h of hypoxia or normoxia and treated with or without 10 μM U0126. (C) Immunoblots of LNCaP shRb and shSCX whole cell lysates after exposure to 72 h of hypoxia or normoxia and treated with or without 10 μM U0126. Blots were probed with antibodies against ERK1/2, phospho-ERK1/2 (Thr202/Tyr204) and α-tubulin. Samples were derived from the same experiment and blots were processed in parallel. Complete blot images are shown in Supplementary Information File 1, Figure S1. Variation in (D) shear modulus or (E) viscosity of shRb and shSCX LNCaP cells after exposure to 72 h of hypoxia or normoxia and treated with or without 15 μM wedelolactone. For A, B, D and E, experiments were conducted in triplicate (n = 3) and ten cells were examined in each experiment. Error bars represent ± S.D. *p < 0.05. **p < 0.001.