10 Million cells / vial. B Cells express CD19 from very early stages, expression is only lost upon maturation into plasma cells. After maturing, the B cells migrate to secondary lymphatic organs and are subsequently activated directly by an antigen or through an antigen presenting cell. At this point they either become memory B cells or plasma B cells. Each B cell gives rise to a single species of antibody. All peripheral blood is collected in ACDA by Leukapheresis from fully consented donors that tested negative for HIV, HBV, and HCV.

All protocols are IRB approved.

Products sold or distributed by First Choice Bio or QuickCells.com are intended and labeled for "Research Use Only" and are never to be used in humans, in human trials or used in a manner inconsistent with "Research Use Only" labeling.

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