Delivery of Bone Marrow-Derived Mesenchymal Stem Cells Improves Tear Production in a Mouse Model of Sjögren’s Syndrome

Figure 2

Cathepsin S activity in the tears of BD-MSC treated and nontreated NOD mice. Following 4 weeks of treatment, tears were collected from BD-MSC and PBS (control) treated mice and used to measure cathepsin S activity as described in the Methods. Data are presented as means ± SEM ( for each group).