ALDH1A1 and lung cancer: While our data demonstrate an important role for ALDH1 as a stemness marker in chemoresistant lung cancer cells, inhibition of its activity and subsequent re-sensitization to the cytotoxic effects of cisplatin via chemical and pharmacological inhibition using DEAB and Disulfiram, respectively, demonstrates the potential use of these agents as a future strategy in targeting subsets of CSCs in cisplatin resistant lung tumors.