Aldefluor analysis of cells extracted from the SW872 liposarcoma xenograft showed that the SW872 xenograft cells, like the liposarcoma patient samples, displayed ALDH activity (11% of the cells were Aldefluorhigh: Figure 2B), making xenograft-derived SW872 cells a suitable model for further analyses of ALDH-positive cells. The gene discussed is LDHA; the disease is liposarcoma.