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Increased Proportion of CD226 + B Cells Is Associated With the Disease Activity and Prognosis of Systemic Lupus Erythematosus
Ist Teil von
Frontiers in immunology, 2021-07, Vol.12, p.713225-713225
Ort / Verlag
Switzerland: Frontiers Media S.A
Erscheinungsjahr
2021
Quelle
Electronic Journals Library
Beschreibungen/Notizen
CD226, an activating receptor expressed on the surface of natural killer (NK) cells and T cells, is also seen on B cells and CD226 polymorphism is associated with systemic lupus erythematosus (SLE). Because the specific roles of CD226
B cells in SLE are still unknown, we investigated the association of CD226
B cells with SLE.
We measured CD226 expression on B cells and its subsets using flow cytometry in 48 SLE patients and 24 healthy controls (HCs). We assessed the relationships between CD226
B cells and SLE Disease Activity Index 2000 (SLEDAI-2K), clinical manifestations, laboratory data, and prognosis after 12 months.
The proportions of CD226
cells in whole B cells and all its subsets were significantly higher in SLE patients than HCs. In SLE patients, the proportions of CD226
B cells and CD226
switched-memory (SM) B cells were significantly correlated with SLEDAI-2K scores and anti-dsDNA antibody titers, and negatively correlated with serum complement levels. Moreover, basal percentages of CD226
B cells and CD226
SM B cells were low in patients who were in Lupus Low Disease Activity State after 12 months. In patients with renal involvement, the proportion of CD226
B cells increased. Additionally, the proportion of CD226
B cells was higher in patients who were not in complete renal remission after 12 months.
Increased proportion of CD226
B cells was associated with disease activity and prognosis of SLE. CD226
B cells may be a useful biomarker for the management of SLE.