AntagomiR-150-5p delivery attenuated the inflammation in rat AAA. (A, B). Representative photomicrographs and semiquantitative analysis of CD45, CD68, MCP-1 and TNF-α of immunostaining in Cacl2-induced AAA, scale bars, 50 μm, n = 6, ∗∗∗P < 0.001 Vs. sham group; ###P < 0.001 Vs. AAA group. (C, D). Representative photomicrographs and semiquantitative analysis of CD45, CD68, MCP-1 and TNF-α of immunostaining in elastase-induced AAA, scale bars, 50 μm, n = 6, ∗∗∗P < 0.001 Vs. sham group; ###P < 0.001 Vs. AAA group.