Figure 6. PRG4-9+ and SMA-9+ cells contributed to a thickened deltoid epimysium following the sham procedure.
The epimysium lining over the undersurface of the deltoid muscle became thickened in response to the sham procedure. The thickened epimysium was predominantly composed of PRG4-9+ (A) and SMA-9+ (B) cells (see arrows) but had minimal AGC-9+ (C) cells. The images are from two weeks post-surgery. Panels A–C are composite images of tdTom fluorescence and darkfield. Panels A′, B′, and C′ are toluidine blue images from the same section as panels A–C. Scale bars = 200μm.