AIM: To demonstrate the effects of telmisartan on the proliferation and apoptosis of U937 cells.METHODS: The proliferation ability of the U937 cells was assessed by CCK-8 assay and colony formation test with methylcellulose. The CD11 b expression rate of the U937 cells was identified by flow cytometry. The apoptotic rate was analyzed by flow cytometry with Annexin V-PI double staining and Hoechst 33342 staining. The protein levels of cleaved PARP and cleaved caspase-3 were determined by Western blot. RESULT...