Drug-induced changes in the expression levels of β
integrin subunits. Mean ± standard deviations of mean values of integrin subunit band intensities derived from 4 separate Western blotting experiments. Cells at 75% confluence were treated with low or high concentrations of valproate (A & B), thalidomide (C & D) or alcohol (E & F). Drug treatments in culture changed intensities of β1 (left panels) and α5 (right panels) integrin subunit bands. Drug concentrations and the time of exposures are shown below each bar. Symbols Controls (□), High (■) and Low drug () concentration. * p < 0.05.