‘Low‐risk’ myelodysplastic syndrome is associated with excessive apoptosis and an increased ratio of pro‐ versus anti‐apoptotic bcl‐2‐related proteins

Abstract excerpt

We performed flow cytometric analysis of CD34+ cell apoptosis in 59 patients with myelodysplastic syndrome (MDS) or acute myeloid leukaemia (AML) secondary to MDS (MDS-AML) using annexin V-FITC, which binds to exposed phosphatidylserine on apoptotic cells. Apoptosis was significantly increased in FAB subtypes RA, RARS and RAEB (<10% blasts) (56.5% (15.1-86.5%)) compared to normal controls (18.5% (3.4-33.4%),...

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