From: VH3-21 B Cells Escape from a State of Tolerance in Rheumatoid Arthritis and Secrete Rheumatoid Factor
B Cell Donors
Number of Microcultures
IgM+ Cultures
RF+/IgM+ Cultures
Normal controls (n = 4)
544
149
0.7%
RA patients (n = 5)
2128
439
14.9%
pSS patients (n = 2)
1536
386
12.7%