Abstract
The CD40 antigen is involved in cell survival and differentiation of B-cells and is uniformly expressed on chronic lymphocytic leukemia (CLL) cells. The CD40/CD40L interaction stimulates B-cells, dendritic cells and monocytes to proliferate, differentiate, up regulate co-stimulatory molecules and increase antigen presentation. While activation of CD40 can protect CLL cells against early fludarabine-induced apoptosis, these cells become sensitive to delayed death by extrinsic pathway apoptosis. (
Blood
, 105
: 3193
–8, 2005
Author notes
Corresponding author
2005, The American Society of Hematology
2005
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