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. 2019 Apr 30;10(4):e00020. doi: 10.14309/ctg.0000000000000020

Figure 4.

Figure 4.

Circulating PD-1+ Tfh1 and Tfh2 subsets correlate with serum IgG4 and IgE levels in IgG4-SC/AIP. Serum IgG4 and IgE levels were measured by nephelometry and automated ImmunoCAP, respectively. Correlation plots showing serum IgG4 (g/L) plotted against (a) PD-1+ Tfh1 cells, (b) PD1+ Tfh2 cells, and (c) PD1+ Tfh17 cells, and serum IgE (kIU/L) plotted against (d) PD-1+ Tfh1 cells, (e) PD1+ Tfh2 cells, and (f) PD1+ Tfh17 cells. Spearman rank correlation and *P < 0.05, **P < 0.01. AIP, autoimmune pancreatitis; IgG4-SC, IgG4-related sclerosing cholangitis; PD-1, programmed cell death protein 1; Tfh, T-follicular helper.