Prospective analysis of plasmacytosis in autoimmune patients.

(A) Cytometric analysis of circulating CD19+CD27high plasma cells on day 0 and day 7 of IVIg treatment in a representative GBS patient. Proportions of CD19+CD27high plasma cells among CD19+ cells are indicated. (B) Peripheral CD19+CD27high plasma cell kinetics in representative GBS patients. (C) Proportions among CD19+ cells (left panel) and absolute numbers (right panel) of IVIg-mobilized CD19+CD27high plasma cells. GBS (disability grade 3 or more, n = 40) and CIDP (n = 14) patients received IVIg only, whereas MG (n = 7) and IM (n = 6) patients received IVIg and steroids. Data are mean �� s.e.m. Mean values were compared using Mann-Whitney U test.