CXCL9 may be biomarker for primary Sjögren’s with extra-glandular symptoms
Patients with primary Sjögren’s syndrome who have extra-glandular symptoms have higher levels of the chemokine CXCL9 than those only affected in the saliva and tear-producing glands, a study finds. CXCL9 is a small signaling molecule involved in the migration and maturation of lymphocytes, a type of immune cell thought…