I have obtained some glioblastoma cancer stem cells and I want to determine their self-renewal potency based on the colony forming ability. If there is any other assays to determine potency for cancer stem cells please let me know.
Induce apoptosis by your choice of agent (say cisplatin), collect floating apoptotic cells gently, spin at 1300 rpm 3 mins at RT, discard sup, plate in new complete medium (you may add lactic acid to make the pH of media to 6.5 which should work for GBM cells because we adapted lactate use based on GBM reports). Observe for/count spheres at 4 hrs if not, 12 hrs if not 16hrs.