as previously described58 (link)−60 (link) using mouse anti-β-Actin,
mouse anti-p-ERK, rabbit anti-ERK, mouse anti-p-EGFR (Y1045), mouse
anti-p-EGFR (Y1148), mouse anti-p-EGFR (Y1173), mouse anti-CCND1,
mouse anti-CDK4, mouse anti-CCNB1, rabbit anti-c-MYC, mouse anti-BCL2,
mouse anti-BCL-XL, mouse anti-BAD, rabbit anti-CYCS, mouse anti-p-ERK
(44/42), and rabbit anti-ERK antibodies were procured from Santa Cruz
Biotechnology, CA. Mouse anti-CDH1, mouse anti-CDH2, rabbit anti-OCLN,
rabbit anti-pSTAT3, and mouse anti-STAT3 antibodies were obtained
from Abcam, Cambridge, MA. Rabbit anti-p-EGFR (Y992) and rabbit anti-p-CDK2
antibodies were obtained from Cell Signaling. Cell extracts were resolved
on SDS-PAGE and immunoblotted, with the appropriate and respective
antibodies. β-Actin was used as input control for cell lysate.
The sizes of the detected protein bands are shown in kilodaltons on
the left side.