Effects of tumour necrosis factor ? on bone marrow aspirates of patients with acute myelogenous leukemia determined by flow-cytometric cell-cycle analysis

Abstract
Tumour necrosis factor α (TNFα) exerts cytotoxic and antiproliferative effects on neoplastic cells. It has been used as a therapeutic agent for solid tumours and haematological malignancies. We report on the ex vivo determination of the effect of recombinant human rhuTNFα on bone marrow aspirates by a bromodeoxyuridine/propidium iodide method. Cell samples were drawn after 0.5, 2, 4, 6, 8, 10, 22, and 25 h from shortterm suspension bone marrow cultures from patients with acute myelogenous leukemia (AML). Flow-cytometric cell-cycle analysis was performed after double DNA staining with propidium iodide and anti-BrdU antibodies. By this method the effect of rhuTNFα on cell proliferation can be evaluated after only 35 h. In about two-thirds of the bone marrow aspirates of AML an inhibiting effect on rhuTNFα can be demonstrated, developing to its full extent after 10 h.

This publication has 22 references indexed in Scilit: