(C) Overall survival analysis of mice bearing Daoy or Daoy-expressing dox-inducible SOX9 treated with cisplatin. The dox-preconditioned cells (105 cells) were orthotopically xenografted to Nude-Foxn1nu mice and left for 1 week to prior to being treated with vehicle control or cisplatin (2mg/kg) intraperitoneally for every other day for a total of 6 doses. 