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Involvement of integrin α1β1 in anoikis resistance in colorectal cancer. Histograms showing the results of the measurement of caspase-3 activity in the three cell lines HT29, T84 and SW480. The cells were kept in suspension without serum for 24 h in plates coated with poly 2-hydroxyethyl methacrylate. Cells were lysed using buffer without p-nitrophenyl phosphate. N = 3. Student’s t test. * p < 0.05.
