MEnT does not induce the expression of monocyte specific markers in HL-60 cell lines. Flow cytometric analysis of the expression of the CD14 and CD11b maturation markers on untreated, zinc treated (18 hours), or TPA treated (18 hours) HL-60 MEnT-containing cells. Negative control antibody binding is indicated by dashed lines. Data shown are a representative tracing of clonal line, HL-60 MEnT clone 1 (Western blot showing protein expression Fig 9A).