Increased IL-21 Expression Induces Granzyme B in Peripheral CD5⁺ B Cells as a Potential Counter-Regulatory Effect in Primary Sjögren’s Syndrome

Figure 2

Interleukin-21 receptor expression of B cell subsets. Box plots show median, upper, and lower quartiles; lines extending vertically from boxes indicate 5–95 percentile ranges. Statistically significant differences are indicated by .