Figure 3

Merged images of laser scanning confocal fluorescent microscopy ocular surface tissue sections stained for interleukin 2 receptor alpha chain (CD25, in green) and interleukin 2 receptor beta chain (CD12, in green) with propidium iodide (PI, red) nuclear counterstaining in nonstressed controls (NS), 5 days (D) of desiccating stress (DS5) in MMP-9 knock-out (BKO) and wild-type (WT) mice. All images shown are the merged image of CD25 and CD122 (in green) with PI counterstaining. Scale bar = 50 μm.