Posttranslational Protein Modification in the Salivary Glands of Sjögren’s Syndrome Patients

Figure 4

Immunohistochemistry of minor salivary glands from Sjögren patients; the superior panel shows an overview of immunoreagent distribution at 10x magnification; the inferior panel showed a close up at 40x magnification. (A) and (E). Incubated with PBS. (B) and (F). Treated with anti-CCP. (C) and (G). Anti-PAD2. (D) and (H). Anticitrulline. Note the correlation between CCP, PAD2, and citrulline expression in a duct.