Ixmyelocel-T macrophages remain anti-inflammatory after inflammatory challenge. (A) TNFα and (B) IL-12 were quantified in M1, M2, and ixmyelocel-T supernatants treated with and without 0.1 μg/mL LPS (n = 4–7). Values are presented as mean ± SEM relative to control, *P <0.001 vs M1. #P <0.001 vs M2. &P <0.05 vs IXT. ^P <0.05, ^^P <0.001 vs M1 + LPS. %P <0.001 vs M2 + LPS. LPS, lipopolysaccharide; SEM = standard error of the mean.