Figure 4. 15-LO mRNA expression is inhibited by αM integrin activation.
Human monocytes were incubated in the presence of activating antibody to β2 integrin or clustering through αM integrin (as described in the Methods section) followed by stimulation with IL-13 for 24 hours. After incubation monocyte mRNA was isolated using a Qiagen Oligotex mRNA Midi Kit and levels of 15-LO mRNA were evaluated by quantitative real time RT-PCR. After normalization with GAPDH amplification, the fold induction of 15-LO mRNA expression after β2 integrin activation or αM integrin clustering was compared with the control. Data were collected from five independent experiments and are shown as means ± SE. Statistical analysis was performed using Student’s paired t-test, (* P< 0.05 compared to IL-13 stimulated cells).