Table I.

CD19+CD27IgG+ B cells are present in peripheral blood

SampleIgG+ (%)aCD27+IgG+ (%)aCD27IgG+ (%)aCD27IgG+/IgG+ (%)b
16.14.81.422.1
23.72.51.232.8
314.810.64.128.0
46.95.41.521.3
516.513.92.616.0
611.89.02.823.9
76.44.91.624.3
812.49.42.923.6
911.68.33.227.8
105.34.11.323.6
116.64.81.827.4
1211.87.84.034.0
139.78.01.717.4
1416.812.24.727.6
155.33.71.731.6
Mean ± SD9.7 ± 4.37.3 ± 3.32.4 ± 1.225.4 ± 5.2
  • a PBMC were analyzed for CD19, CD27, and IgG expression, and CD19+ cells were gated and used to determine the proportions of IgG+ and, as shown in Fig. 1A, CD27+IgG+ and CD27IgG+ cells (R1 and R2 regions, respectively).

  • b The percentage of CD19+CD27IgG+ among total CD19+IgG+cells.