Figure 8. The effect of Y-27632 on
the prevalence of fibripositors. A: Bundles of aligned
and uniformly spaced collagen fibrils (arrows) were more
prevalent in keratocytes in Y-27632 treated corneas. These
resembled fibripositor-like structures, which have been proposed
in tendon as a mechanism of uniaxial matrix deposition. These
tend to be features of developing, rather than mature,
connective tissue matrices. B: Importantly, keratocytes
seem to show multiple fibripositor directions. (Arrows;
blue=longitudinal, red=transverse, green=oblique) Scale bar: A; 0.5 μm, B; 1 μm.