Figure 4. PDT increases the prevalence of high-MPO Ly6G⁺ cells, but not intracellular MPO expression.

Intracellular levels of MPO were assessed for permeabilized, fixed CD11b⁺Ly6G⁺ cells and for CD45⁺CD11b⁻ cells. CD11b⁺Ly6G⁺ cells showed a higher level of MPO than their CD11b-counterparts. PDT induced the expression of MPO in a larger fraction of Ly6G⁺ cells, though the maximum level achieved was not greater than that of untreated controls. Data represents one of two repetitions.