CD19 is a transmembrane glycoprotein expressed on all B-lineage cells throughout B cell development. It’s critically important for B cell function and cell survival and regulates B cell receptor (BCR) signaling. Studies show that CD19 promotes BCR-dependent survival signals in mature B cells and also promotes survival of naïve recirculating B cells.1

CD19 is an attractive target for treatment because it is expressed on the majority of B cell malignancies, with approximately 85% of non-Hodgkin lymphoma cases originating in B cells.2

Learn more about modalities targeting CD19:
BiTE® technology.

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CD: cluster of differentiation.


1. Onea AS, Jazirehi AR. Am J Cancer Res. 2016;6(2):403-424. 2. American Cancer Society. Accessed 4/5/2019.