1932

Abstract

Chronic lymphocytic leukemia (CLL) is characterized by the clonal expansion of CD5+CD23+ B cells in blood, marrow, and second lymphoid tissues. Gene-expression profiling and phenotypic studies suggest that CLL is probably derived from CD5+ B cells similar to those found in the blood of healthy adults. Next-generation sequencing has revealed recurrent genetic lesions that are implicated in CLL pathogenesis and/or disease progression. The biology of CLL is entwined with its microenvironment, in which accessory cells can promote leukemia cell growth and/or survival. Recently, much attention has been focused on the CLL B cell receptor (BCR) and on chemokine receptors that enable CLL cells to home to lymphoid tissues and to establish the leukemia microenvironment. Agents that can interfere with BCR signaling or chemokine–receptor signaling, or that target surface antigens selectively expressed on CLL cells, promise to have significant therapeutic benefit in patients with this disease.

Loading

Article metrics loading...

/content/journals/10.1146/annurev-pathol-020712-163955
2014-01-24
2024-06-21
Loading full text...

Full text loading...

/content/journals/10.1146/annurev-pathol-020712-163955
Loading
/content/journals/10.1146/annurev-pathol-020712-163955
Loading

Data & Media loading...

  • Article Type: Review Article
This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error