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Deficient EBV-Specific B- and T-Cell Response in Patients with Chronic Fatigue Syndrome

Figure 3

EBV-specific antibody secreting cells are reduced in CFS patients.

(A–D) Frequencies of ASCs in healthy controls and CFS patients 7 days after polyclonal stimulation of total PBMCs. Secreted total and specific IgG was assessed with the ELISpot assay. IgG-secreting B cells are shown as frequencies from 1×106 seeded cells for (A) total IgG (control n = 12, CFS n = 17), (B) EBV-lysate-specific IgG (control n = 12, CFS n = 17), VCA-specific IgG (control n = 12, CFS n = 17), IgG against EBNA-1 peptides (control n = 12, CFS n = 16) and (C) HSV- (control n = 8, CFS n = 11) and (D) CMV-lysate-specific IgG (control n = 6, CFS n = 6). (E) Comparison of frequencies of ASCs in polyclonal stimulation of total PBMCs (T-cell dependent) and stimulation of isolated B cells with CD40L (T-cell independent) in CFS patients for total IgG, EBV-lysate, (n = 8), VCA or EBNA-1 peptides (n = 6). Statistical analysis was performed using the two-tailed Mann-Whitney-U test with * p<0.05.

Figure 3