Brief Report: Number of Circulating Follicular Helper 2 T Cells Correlates With IgG4 and Interleukin‐4 Levels and Plasmablast Numbers in IgG4‐Related Disease

Abstract

The Tfh2 cell count was specifically increased in IgG4-related disease and was correlated with elevated serum levels of IgG4 and IL-4 and plasmablast counts. Tfh2 cells were the only component that was not affected by glucocorticoid treatment, suggesting that Tfh2 cells are the cell type implicated in IgG4-related disease.