Notch 1 IC or HRT-1 overex-pression blocks inhibition of SMC proliferation by EtOH. A and B, SMCs were transfected without (mock) or with constitutively active Notch 1 IC (A) or hHRT-1 (B) and treated with EtOH for 24 hours; PCNA protein levels were measured by Western blot as an index of proliferation. Blots were reprobed for β-actin or GAPDH as a loading control. A, *P<0.05 vs mock control (0-mmol/L EtOH). A representative Western blot is shown, with cumulative data (n=3). B, Top, A representative Western blot of 3 is shown; bottom, growth curves for control and EtOH-treated cells, with or without HRT-1 overexpression.