<p><b>Copyright information:</b></p><p>Taken from "Clone-specific expression, transcriptional regulation, and action of interleukin-6 in human colon carcinoma cells"</p><p>http://www.biomedcentral.com/1471-2407/8/13</p><p>BMC Cancer 2008;8():13-13.</p><p>Published online 18 Jan 2008</p><p>PMCID:PMC2257953.</p><p></p> Culture time was 72 h. Cell growth was assayed by [H]thymidine incorporation into cellular DNA (normalised to total protein). Data are expressed as means ± SD, = 4 – 7. Statistically significant differences from controls: *, < 0.05; **, < 0.01 (Student's -test)