FIGURE 2.

(A) Representative images of haematoxylin and eosin staining in AIA‐treated mice (Scale bar, 50 μm or 25 μm). (B) CD31 detection in the IHC analysis and positive area of the knee joints from AIA‐treated mice. (C) Representative immunofluorescence staining images and CD31&Ki67 colocalization, positive cells of CD31 and Ki67 in synovial tissues of AIA‐treated mice (scale bars, 25 μm). (D) Representative immunofluorescence staining images and CD31&Ezrin colocalization, positive cells of CD31 and Ezrin in synovial tissues of AIA‐treated mice (scale bars, 25 μm). n = 5, *p < 0.05, **p < 0.01