PRETREATMENT WITH THE POLYAMINE ANALOG 1,19-BIS-(ETHYLAMINO)-5,10,15-TRIAZANONADECANE (BE-4-4-4-4) INHIBITS ETOPOSIDE CYTOTOXICITY IN U-251MG (NCI) HUMAN BRAIN-TUMOR CELLS
Iv. Smirnov et al., PRETREATMENT WITH THE POLYAMINE ANALOG 1,19-BIS-(ETHYLAMINO)-5,10,15-TRIAZANONADECANE (BE-4-4-4-4) INHIBITS ETOPOSIDE CYTOTOXICITY IN U-251MG (NCI) HUMAN BRAIN-TUMOR CELLS, Cellular and molecular biology, 40(7), 1994, pp. 975-980
We studied whether pretreatment of U-251 MG human brain tumor cells wi
th the polyamine analog 1,19-bis-(ethylamino)-5,10-15-triazanonadecane
(BE-4-4-4-4) affected the cytotoxicity of the toposionmerase II inhib
itor etoposide. We found that BE-4-4-4-4 protected cells from the cyto
toxic effects of etoposide. Possible mechanisms for this protection ma
y be related to enhanced DNA-nuclear matrix association in analog-trea
ted cells.