Flow cytometry analysis of phenotypic changes of macrophages after various stimulatory substances.

<p>A: expression of CD11b : the expression of CD11b increased after benzalkonium chloride (BAK) stimulation (<i>P</i> = 0.033, *) as compared to phosphate buffered saline (PBS). B: expression of CD11c : the expression of CD11c increased with BAK (<i>P</i> = 0.005, *), DNCB (<i>P</i> = 0.004, #), lipopolysaccharide (LPS) (<i>P</i> = 0.035, §) or tumor necrosis factor alpha (TNF-α) (<i>P</i> = 0.033, +) as compared to PBS. C: expression of CD54 : the expression increased under LPS stimulation (<i>P</i> = 0.007, *) as compared to PBS. D: expression of CD33 : a decreased expression of CD33 was observed when exposed to BAK (<i>P</i> = 0.003, *) as compared to PBS. Errors bars represent standard deviation.