Expansion of Circulating T Follicular Helper Cells in Children with Acute Henoch-Schönlein Purpura

Figure 4

Correlation of cytokine levels and circulating TFH cells in HCs and HSP patients. (a) Levels of serum IL-21 in HCs and HSP patients. (b) Levels of serum IL-6 in HCs and HSP patients. (c) and (d) Relationship of serum IL-21 levels and the percentage of ICOS⁺CXCR5⁺CD4⁺TFH cells in HCs and HSP patients, respectively. (e) and (f) Relationship of serum IL-6 levels and the percentage of ICOS⁺CXCR5⁺ in CD4⁺TFH cells in HCs and HSP patients, respectively. Data shown were the mean ± SD. The horizontal lines show the median.

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