Example 17
HT29-Luc2 CRC cells were maintained using McCoy's 5A (Gibco 36600-088) medium supplemented with 10% FBS (Gibco 10270-106) at 37° C./5% CO2. Cells were washed in DPBS and trypsinised using 2 ml TrypLE™ Express (1×) (Invitrogen). Cells were centrifuged following detachment at 1200 rpm for 4 minutes. The cell pellet was resuspended in full media and a cell count was performed using a haemocytometer. 1.5×103 cells were seeded per well of a 6 well plate and left to adhere for 24 hours. Cells were then treated with 10 μM of compound 4 or 18 for 24 hours. The drugs were then removed and cells were allowed to grow in fresh media for 10 days in total, clones were then fixed using 4% paraformaldehyde and stained by incubating with 0.5% crystal violet solution (Pro-Lab diagnostics PL.7000) at RT for 2 hours. Clones counting was performed using the ColCount™ system (Oxford Optronix).