Konopleva et al. reported that PPARγ is expressed in lymphoid (Su-DHL, Sup-M2, Ramos, Raji, Hodgkin's cell lines, and primary chronic lymphocytic leukemia) and myeloid (U937 and HL-60) cell lines, several of which undergo apoptosis when treated with PPARγ ligands including ROSI and 15d-PGJ2. The gene discussed is PPARG; the disease is B-cell chronic lymphocytic leukemia.