Results paralleled the trend seen for ZsGreen-cODC+ cells with increased frequencies of ALDH+ cells in more aggressive breast cancers (MCF-7: 0.98%; T47D: 1.34%; MDA-MB-231: 2.04%; SUM159PT: 8.68%; BCCL2: 11.1%; BCCL3: 7.17%) (Fig. 3). The gene discussed is LDHA; the disease is breast carcinoma.