Figure 4. Let-7a and miR-125b are regulated by LPS.
(A) Total RNA was extracted from macrophages using Qiagen miRNeasy kits. Let-7a and miR-125b expression were measured using Taqman miRNA assay system. Data are normalized to U6 expression levels. (B) let-7a and (C) miR-125b expression levels in response to LPS stimulation. Data were normalized to U6 and are presented as relative to unstimulated levels. (D–E) Macrophages from a representative donor were treated with NF-κB activation inhibitor (10 μM) for 1 hour prior to LPS stimulation for (D) 12 hours or (E) 3 hours. *p<0.05 vs. unstimulated controls.